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mac80211: notify the driver about deauth
[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[] = {
71b836ec
JB		 62 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
63 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
64 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
65 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
66 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
2a94fe48 67#ifdef CONFIG_NL80211_TESTMODE
71b836ec 68 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
2a94fe48
JB		 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 */
8cd4d456 212static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
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 },
18e5ca65 391 [NL80211_ATTR_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 },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
ad2b26ab 398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
1bdd716c 399 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
4b681c82 400 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
9c748934 401 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
05050753 402 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
55682965
JB		 403};
404
e31b8213 405/* policy for the key attributes */
b54452b0 406static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 407 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 408 [NL80211_KEY_IDX] = { .type = NLA_U8 },
409 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 410 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 411 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
412 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 413 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 414 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
415};
416
417/* policy for the key default flags */
418static const struct nla_policy
419nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
420 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 422};
423
ff1b6e69
JB		 424/* policy for WoWLAN attributes */
425static const struct nla_policy
426nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
427 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 431 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 435 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 436 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 437};
438
439static const struct nla_policy
440nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
441 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
442 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
444 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
445 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
448 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
449 },
450 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
451 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
452 },
453 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
455 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 456};
457
be29b99a
AK		 458/* policy for coalesce rule attributes */
459static const struct nla_policy
460nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
461 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
462 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
464};
465
e5497d76
JB		 466/* policy for GTK rekey offload attributes */
467static const struct nla_policy
468nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
469 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
470 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
471 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
472};
473
a1f1c21c
LC		 474static const struct nla_policy
475nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 476 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 477 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 478 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 479};
480
97990a06
JB		 481static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
482 struct netlink_callback *cb,
483 struct cfg80211_registered_device **rdev,
484 struct wireless_dev **wdev)
a043897a 485{
97990a06 486 int err;
a043897a 487
97990a06 488 rtnl_lock();
a043897a 489
97990a06
JB		 490 if (!cb->args[0]) {
491 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
492 nl80211_fam.attrbuf, nl80211_fam.maxattr,
493 nl80211_policy);
494 if (err)
495 goto out_unlock;
67748893 496
97990a06
JB		 497 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
498 nl80211_fam.attrbuf);
499 if (IS_ERR(*wdev)) {
500 err = PTR_ERR(*wdev);
501 goto out_unlock;
502 }
f26cbf40 503 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 504 /* 0 is the first index - add 1 to parse only once */
505 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 506 cb->args[1] = (*wdev)->identifier;
507 } else {
c319d50b
JB		 508 /* subtract the 1 again here */
509 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 510 struct wireless_dev *tmp;
67748893 511
97990a06
JB		 512 if (!wiphy) {
513 err = -ENODEV;
514 goto out_unlock;
515 }
f26cbf40 516 *rdev = wiphy_to_rdev(wiphy);
97990a06 517 *wdev = NULL;
67748893 518
97990a06
JB		 519 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
520 if (tmp->identifier == cb->args[1]) {
521 *wdev = tmp;
522 break;
523 }
524 }
67748893 525
97990a06
JB		 526 if (!*wdev) {
527 err = -ENODEV;
528 goto out_unlock;
529 }
67748893
JB		 530 }
531
67748893 532 return 0;
97990a06 533 out_unlock:
67748893
JB		 534 rtnl_unlock();
535 return err;
536}
537
97990a06 538static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 539{
67748893
JB		 540 rtnl_unlock();
541}
542
f4a11bb0
JB		 543/* IE validation */
544static bool is_valid_ie_attr(const struct nlattr *attr)
545{
546 const u8 *pos;
547 int len;
548
549 if (!attr)
550 return true;
551
552 pos = nla_data(attr);
553 len = nla_len(attr);
554
555 while (len) {
556 u8 elemlen;
557
558 if (len < 2)
559 return false;
560 len -= 2;
561
562 elemlen = pos[1];
563 if (elemlen > len)
564 return false;
565
566 len -= elemlen;
567 pos += 2 + elemlen;
568 }
569
570 return true;
571}
572
55682965 573/* message building helper */
15e47304 574static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 575 int flags, u8 cmd)
576{
577 /* since there is no private header just add the generic one */
15e47304 578 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 579}
580
5dab3b8a 581static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 582 struct ieee80211_channel *chan,
583 bool large)
5dab3b8a 584{
ea077c1c
RL		 585 /* Some channels must be completely excluded from the
586 * list to protect old user-space tools from breaking
587 */
588 if (!large && chan->flags &
589 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
590 return 0;
591
9360ffd1
DM		 592 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
593 chan->center_freq))
594 goto nla_put_failure;
5dab3b8a 595
9360ffd1
DM		 596 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
597 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
598 goto nla_put_failure;
8fe02e16
LR		 599 if (chan->flags & IEEE80211_CHAN_NO_IR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
601 goto nla_put_failure;
602 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
603 goto nla_put_failure;
604 }
cdc89b97
JB		 605 if (chan->flags & IEEE80211_CHAN_RADAR) {
606 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
607 goto nla_put_failure;
608 if (large) {
609 u32 time;
610
611 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
612
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
614 chan->dfs_state))
615 goto nla_put_failure;
616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
617 time))
618 goto nla_put_failure;
089027e5
JD		 619 if (nla_put_u32(msg,
620 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
621 chan->dfs_cac_ms))
622 goto nla_put_failure;
cdc89b97
JB		 623 }
624 }
5dab3b8a 625
fe1abafd
JB		 626 if (large) {
627 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
638 goto nla_put_failure;
570dbde1
DS		 639 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
644 goto nla_put_failure;
ea077c1c
RL		 645 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
646 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
647 goto nla_put_failure;
648 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
649 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
650 goto nla_put_failure;
fe1abafd
JB		 651 }
652
9360ffd1
DM		 653 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
654 DBM_TO_MBM(chan->max_power)))
655 goto nla_put_failure;
5dab3b8a
LR		 656
657 return 0;
658
659 nla_put_failure:
660 return -ENOBUFS;
661}
662
55682965
JB		 663/* netlink command implementations */
664
b9454e83
JB		 665struct key_parse {
666 struct key_params p;
667 int idx;
e31b8213 668 int type;
b9454e83 669 bool def, defmgmt;
dbd2fd65 670 bool def_uni, def_multi;
b9454e83
JB		 671};
672
673static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
674{
675 struct nlattr *tb[NL80211_KEY_MAX + 1];
676 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
677 nl80211_key_policy);
678 if (err)
679 return err;
680
681 k->def = !!tb[NL80211_KEY_DEFAULT];
682 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
683
dbd2fd65
JB		 684 if (k->def) {
685 k->def_uni = true;
686 k->def_multi = true;
687 }
688 if (k->defmgmt)
689 k->def_multi = true;
690
b9454e83
JB		 691 if (tb[NL80211_KEY_IDX])
692 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
693
694 if (tb[NL80211_KEY_DATA]) {
695 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
696 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
697 }
698
699 if (tb[NL80211_KEY_SEQ]) {
700 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
701 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
702 }
703
704 if (tb[NL80211_KEY_CIPHER])
705 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
706
e31b8213
JB		 707 if (tb[NL80211_KEY_TYPE]) {
708 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
709 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
710 return -EINVAL;
711 }
712
dbd2fd65
JB		 713 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
714 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 715 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
716 tb[NL80211_KEY_DEFAULT_TYPES],
717 nl80211_key_default_policy);
dbd2fd65
JB		 718 if (err)
719 return err;
720
721 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
722 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
723 }
724
b9454e83
JB		 725 return 0;
726}
727
728static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
729{
730 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
731 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
732 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
733 }
734
735 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
736 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
737 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
738 }
739
740 if (info->attrs[NL80211_ATTR_KEY_IDX])
741 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
742
743 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
744 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
745
746 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
747 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
748
dbd2fd65
JB		 749 if (k->def) {
750 k->def_uni = true;
751 k->def_multi = true;
752 }
753 if (k->defmgmt)
754 k->def_multi = true;
755
e31b8213
JB		 756 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
757 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
758 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
759 return -EINVAL;
760 }
761
dbd2fd65
JB		 762 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
763 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
764 int err = nla_parse_nested(
765 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
766 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
767 nl80211_key_default_policy);
768 if (err)
769 return err;
770
771 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
772 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
773 }
774
b9454e83
JB		 775 return 0;
776}
777
778static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
779{
780 int err;
781
782 memset(k, 0, sizeof(*k));
783 k->idx = -1;
e31b8213 784 k->type = -1;
b9454e83
JB		 785
786 if (info->attrs[NL80211_ATTR_KEY])
787 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
788 else
789 err = nl80211_parse_key_old(info, k);
790
791 if (err)
792 return err;
793
794 if (k->def && k->defmgmt)
795 return -EINVAL;
796
dbd2fd65
JB		 797 if (k->defmgmt) {
798 if (k->def_uni || !k->def_multi)
799 return -EINVAL;
800 }
801
b9454e83
JB		 802 if (k->idx != -1) {
803 if (k->defmgmt) {
804 if (k->idx < 4 || k->idx > 5)
805 return -EINVAL;
806 } else if (k->def) {
807 if (k->idx < 0 || k->idx > 3)
808 return -EINVAL;
809 } else {
810 if (k->idx < 0 || k->idx > 5)
811 return -EINVAL;
812 }
813 }
814
815 return 0;
816}
817
fffd0934
JB		 818static struct cfg80211_cached_keys *
819nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 820 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 821{
822 struct key_parse parse;
823 struct nlattr *key;
824 struct cfg80211_cached_keys *result;
825 int rem, err, def = 0;
826
827 result = kzalloc(sizeof(*result), GFP_KERNEL);
828 if (!result)
829 return ERR_PTR(-ENOMEM);
830
831 result->def = -1;
832 result->defmgmt = -1;
833
834 nla_for_each_nested(key, keys, rem) {
835 memset(&parse, 0, sizeof(parse));
836 parse.idx = -1;
837
838 err = nl80211_parse_key_new(key, &parse);
839 if (err)
840 goto error;
841 err = -EINVAL;
842 if (!parse.p.key)
843 goto error;
844 if (parse.idx < 0 || parse.idx > 4)
845 goto error;
846 if (parse.def) {
847 if (def)
848 goto error;
849 def = 1;
850 result->def = parse.idx;
dbd2fd65
JB		 851 if (!parse.def_uni || !parse.def_multi)
852 goto error;
fffd0934
JB		 853 } else if (parse.defmgmt)
854 goto error;
855 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 856 parse.idx, false, NULL);
fffd0934
JB		 857 if (err)
858 goto error;
859 result->params[parse.idx].cipher = parse.p.cipher;
860 result->params[parse.idx].key_len = parse.p.key_len;
861 result->params[parse.idx].key = result->data[parse.idx];
862 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 863
864 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
865 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
866 if (no_ht)
867 *no_ht = true;
868 }
fffd0934
JB		 869 }
870
871 return result;
872 error:
873 kfree(result);
874 return ERR_PTR(err);
875}
876
877static int nl80211_key_allowed(struct wireless_dev *wdev)
878{
879 ASSERT_WDEV_LOCK(wdev);
880
fffd0934
JB		 881 switch (wdev->iftype) {
882 case NL80211_IFTYPE_AP:
883 case NL80211_IFTYPE_AP_VLAN:
074ac8df 884 case NL80211_IFTYPE_P2P_GO:
ff973af7 885 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 886 break;
887 case NL80211_IFTYPE_ADHOC:
fffd0934 888 case NL80211_IFTYPE_STATION:
074ac8df 889 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 890 if (!wdev->current_bss)
fffd0934
JB		 891 return -ENOLINK;
892 break;
de4fcbad 893 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 894 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 895 case NL80211_IFTYPE_MONITOR:
896 case NL80211_IFTYPE_P2P_DEVICE:
897 case NL80211_IFTYPE_WDS:
898 case NUM_NL80211_IFTYPES:
fffd0934
JB		 899 return -EINVAL;
900 }
901
902 return 0;
903}
904
664834de
JM		 905static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
906 struct nlattr *tb)
907{
908 struct ieee80211_channel *chan;
909
910 if (tb == NULL)
911 return NULL;
912 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
913 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
914 return NULL;
915 return chan;
916}
917
7527a782
JB		 918static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
919{
920 struct nlattr *nl_modes = nla_nest_start(msg, attr);
921 int i;
922
923 if (!nl_modes)
924 goto nla_put_failure;
925
926 i = 0;
927 while (ifmodes) {
9360ffd1
DM		 928 if ((ifmodes & 1) && nla_put_flag(msg, i))
929 goto nla_put_failure;
7527a782
JB		 930 ifmodes >>= 1;
931 i++;
932 }
933
934 nla_nest_end(msg, nl_modes);
935 return 0;
936
937nla_put_failure:
938 return -ENOBUFS;
939}
940
941static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 942 struct sk_buff *msg,
943 bool large)
7527a782
JB		 944{
945 struct nlattr *nl_combis;
946 int i, j;
947
948 nl_combis = nla_nest_start(msg,
949 NL80211_ATTR_INTERFACE_COMBINATIONS);
950 if (!nl_combis)
951 goto nla_put_failure;
952
953 for (i = 0; i < wiphy->n_iface_combinations; i++) {
954 const struct ieee80211_iface_combination *c;
955 struct nlattr *nl_combi, *nl_limits;
956
957 c = &wiphy->iface_combinations[i];
958
959 nl_combi = nla_nest_start(msg, i + 1);
960 if (!nl_combi)
961 goto nla_put_failure;
962
963 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
964 if (!nl_limits)
965 goto nla_put_failure;
966
967 for (j = 0; j < c->n_limits; j++) {
968 struct nlattr *nl_limit;
969
970 nl_limit = nla_nest_start(msg, j + 1);
971 if (!nl_limit)
972 goto nla_put_failure;
9360ffd1
DM		 973 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
974 c->limits[j].max))
975 goto nla_put_failure;
7527a782
JB		 976 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
977 c->limits[j].types))
978 goto nla_put_failure;
979 nla_nest_end(msg, nl_limit);
980 }
981
982 nla_nest_end(msg, nl_limits);
983
9360ffd1
DM		 984 if (c->beacon_int_infra_match &&
985 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
986 goto nla_put_failure;
987 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
988 c->num_different_channels) ||
989 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
990 c->max_interfaces))
991 goto nla_put_failure;
cdc89b97 992 if (large &&
8c48b50a
FF		 993 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
994 c->radar_detect_widths) ||
995 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
996 c->radar_detect_regions)))
cdc89b97 997 goto nla_put_failure;
7527a782
JB		 998
999 nla_nest_end(msg, nl_combi);
1000 }
1001
1002 nla_nest_end(msg, nl_combis);
1003
1004 return 0;
1005nla_put_failure:
1006 return -ENOBUFS;
1007}
1008
3713b4e3 1009#ifdef CONFIG_PM
b56cf720
JB		 1010static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1011 struct sk_buff *msg)
1012{
964dc9e2 1013 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1014 struct nlattr *nl_tcp;
1015
1016 if (!tcp)
1017 return 0;
1018
1019 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1020 if (!nl_tcp)
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1024 tcp->data_payload_max))
1025 return -ENOBUFS;
1026
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1028 tcp->data_payload_max))
1029 return -ENOBUFS;
1030
1031 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1032 return -ENOBUFS;
1033
1034 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1035 sizeof(*tcp->tok), tcp->tok))
1036 return -ENOBUFS;
1037
1038 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1039 tcp->data_interval_max))
1040 return -ENOBUFS;
1041
1042 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1043 tcp->wake_payload_max))
1044 return -ENOBUFS;
1045
1046 nla_nest_end(msg, nl_tcp);
1047 return 0;
1048}
1049
3713b4e3 1050static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1051 struct cfg80211_registered_device *rdev,
b56cf720 1052 bool large)
55682965 1053{
3713b4e3 1054 struct nlattr *nl_wowlan;
55682965 1055
1b8ec87a 1056 if (!rdev->wiphy.wowlan)
3713b4e3 1057 return 0;
55682965 1058
3713b4e3
JB		 1059 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1060 if (!nl_wowlan)
1061 return -ENOBUFS;
9360ffd1 1062
1b8ec87a 1063 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1075 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1077 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1079 return -ENOBUFS;
9360ffd1 1080
1b8ec87a 1081 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1082 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1083 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1084 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1085 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1086 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1087 };
9360ffd1 1088
3713b4e3
JB		 1089 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1090 sizeof(pat), &pat))
1091 return -ENOBUFS;
1092 }
9360ffd1 1093
75453ccb
LC		 1094 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1095 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1096 rdev->wiphy.wowlan->max_nd_match_sets))
1097 return -ENOBUFS;
1098
1b8ec87a 1099 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1100 return -ENOBUFS;
1101
8cd4d456
LC		 1102 /* TODO: send wowlan net detect */
1103
3713b4e3 1104 nla_nest_end(msg, nl_wowlan);
9360ffd1 1105
3713b4e3
JB		 1106 return 0;
1107}
1108#endif
9360ffd1 1109
be29b99a 1110static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1111 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1112{
1113 struct nl80211_coalesce_rule_support rule;
1114
1b8ec87a 1115 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1116 return 0;
1117
1b8ec87a
ZG		 1118 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1119 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1120 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1121 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1122 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1123 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1124
1125 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1126 return -ENOBUFS;
1127
1128 return 0;
1129}
1130
3713b4e3
JB		 1131static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1132 struct ieee80211_supported_band *sband)
1133{
1134 struct nlattr *nl_rates, *nl_rate;
1135 struct ieee80211_rate *rate;
1136 int i;
87bbbe22 1137
3713b4e3
JB		 1138 /* add HT info */
1139 if (sband->ht_cap.ht_supported &&
1140 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1141 sizeof(sband->ht_cap.mcs),
1142 &sband->ht_cap.mcs) ||
1143 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1144 sband->ht_cap.cap) ||
1145 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1146 sband->ht_cap.ampdu_factor) ||
1147 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1148 sband->ht_cap.ampdu_density)))
1149 return -ENOBUFS;
afe0cbf8 1150
3713b4e3
JB		 1151 /* add VHT info */
1152 if (sband->vht_cap.vht_supported &&
1153 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1154 sizeof(sband->vht_cap.vht_mcs),
1155 &sband->vht_cap.vht_mcs) ||
1156 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1157 sband->vht_cap.cap)))
1158 return -ENOBUFS;
f59ac048 1159
3713b4e3
JB		 1160 /* add bitrates */
1161 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1162 if (!nl_rates)
1163 return -ENOBUFS;
ee688b00 1164
3713b4e3
JB		 1165 for (i = 0; i < sband->n_bitrates; i++) {
1166 nl_rate = nla_nest_start(msg, i);
1167 if (!nl_rate)
1168 return -ENOBUFS;
ee688b00 1169
3713b4e3
JB		 1170 rate = &sband->bitrates[i];
1171 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1172 rate->bitrate))
1173 return -ENOBUFS;
1174 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1175 nla_put_flag(msg,
1176 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1177 return -ENOBUFS;
ee688b00 1178
3713b4e3
JB		 1179 nla_nest_end(msg, nl_rate);
1180 }
d51626df 1181
3713b4e3 1182 nla_nest_end(msg, nl_rates);
bf0c111e 1183
3713b4e3
JB		 1184 return 0;
1185}
ee688b00 1186
3713b4e3
JB		 1187static int
1188nl80211_send_mgmt_stypes(struct sk_buff *msg,
1189 const struct ieee80211_txrx_stypes *mgmt_stypes)
1190{
1191 u16 stypes;
1192 struct nlattr *nl_ftypes, *nl_ifs;
1193 enum nl80211_iftype ift;
1194 int i;
ee688b00 1195
3713b4e3
JB		 1196 if (!mgmt_stypes)
1197 return 0;
5dab3b8a 1198
3713b4e3
JB		 1199 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1200 if (!nl_ifs)
1201 return -ENOBUFS;
e2f367f2 1202
3713b4e3
JB		 1203 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1204 nl_ftypes = nla_nest_start(msg, ift);
1205 if (!nl_ftypes)
1206 return -ENOBUFS;
1207 i = 0;
1208 stypes = mgmt_stypes[ift].tx;
1209 while (stypes) {
1210 if ((stypes & 1) &&
1211 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1212 (i << 4) | IEEE80211_FTYPE_MGMT))
1213 return -ENOBUFS;
1214 stypes >>= 1;
1215 i++;
ee688b00 1216 }
3713b4e3
JB		 1217 nla_nest_end(msg, nl_ftypes);
1218 }
ee688b00 1219
3713b4e3 1220 nla_nest_end(msg, nl_ifs);
ee688b00 1221
3713b4e3
JB		 1222 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1223 if (!nl_ifs)
1224 return -ENOBUFS;
ee688b00 1225
3713b4e3
JB		 1226 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1227 nl_ftypes = nla_nest_start(msg, ift);
1228 if (!nl_ftypes)
1229 return -ENOBUFS;
1230 i = 0;
1231 stypes = mgmt_stypes[ift].rx;
1232 while (stypes) {
1233 if ((stypes & 1) &&
1234 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1235 (i << 4) | IEEE80211_FTYPE_MGMT))
1236 return -ENOBUFS;
1237 stypes >>= 1;
1238 i++;
1239 }
1240 nla_nest_end(msg, nl_ftypes);
1241 }
1242 nla_nest_end(msg, nl_ifs);
ee688b00 1243
3713b4e3
JB		 1244 return 0;
1245}
ee688b00 1246
86e8cf98
JB		 1247struct nl80211_dump_wiphy_state {
1248 s64 filter_wiphy;
1249 long start;
1250 long split_start, band_start, chan_start;
1251 bool split;
1252};
1253
1b8ec87a 1254static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1255 enum nl80211_commands cmd,
3713b4e3 1256 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1257 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1258{
1259 void *hdr;
1260 struct nlattr *nl_bands, *nl_band;
1261 struct nlattr *nl_freqs, *nl_freq;
1262 struct nlattr *nl_cmds;
1263 enum ieee80211_band band;
1264 struct ieee80211_channel *chan;
1265 int i;
1266 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1267 rdev->wiphy.mgmt_stypes;
fe1abafd 1268 u32 features;
ee688b00 1269
3bb20556 1270 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1271 if (!hdr)
1272 return -ENOBUFS;
ee688b00 1273
86e8cf98
JB		 1274 if (WARN_ON(!state))
1275 return -EINVAL;
ee688b00 1276
1b8ec87a 1277 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1278 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1279 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1280 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1281 cfg80211_rdev_list_generation))
8fdc621d
JB		 1282 goto nla_put_failure;
1283
3bb20556
JB		 1284 if (cmd != NL80211_CMD_NEW_WIPHY)
1285 goto finish;
1286
86e8cf98 1287 switch (state->split_start) {
3713b4e3
JB		 1288 case 0:
1289 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1290 rdev->wiphy.retry_short) ||
3713b4e3 1291 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1292 rdev->wiphy.retry_long) ||
3713b4e3 1293 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1294 rdev->wiphy.frag_threshold) ||
3713b4e3 1295 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1296 rdev->wiphy.rts_threshold) ||
3713b4e3 1297 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1298 rdev->wiphy.coverage_class) ||
3713b4e3 1299 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1300 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1301 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1302 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1303 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1304 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1305 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1306 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1307 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1308 rdev->wiphy.max_match_sets))
9360ffd1 1309 goto nla_put_failure;
3713b4e3 1310
1b8ec87a 1311 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1312 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1313 goto nla_put_failure;
1b8ec87a 1314 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1315 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1316 goto nla_put_failure;
1b8ec87a 1317 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1318 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1319 goto nla_put_failure;
1b8ec87a 1320 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1321 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1322 goto nla_put_failure;
1b8ec87a 1323 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1324 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1325 goto nla_put_failure;
1b8ec87a 1326 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1327 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1328 goto nla_put_failure;
86e8cf98
JB		 1329 state->split_start++;
1330 if (state->split)
3713b4e3
JB		 1331 break;
1332 case 1:
1333 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1334 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1335 rdev->wiphy.cipher_suites))
3713b4e3 1336 goto nla_put_failure;
4745fc09 1337
3713b4e3 1338 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1339 rdev->wiphy.max_num_pmkids))
3713b4e3 1340 goto nla_put_failure;
b23aa676 1341
1b8ec87a 1342 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1343 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1344 goto nla_put_failure;
b23aa676 1345
3713b4e3 1346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1347 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1348 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1349 rdev->wiphy.available_antennas_rx))
9360ffd1 1350 goto nla_put_failure;
b23aa676 1351
1b8ec87a 1352 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1353 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1354 rdev->wiphy.probe_resp_offload))
3713b4e3 1355 goto nla_put_failure;
8fdc621d 1356
1b8ec87a
ZG		 1357 if ((rdev->wiphy.available_antennas_tx ||
1358 rdev->wiphy.available_antennas_rx) &&
1359 rdev->ops->get_antenna) {
3713b4e3
JB		 1360 u32 tx_ant = 0, rx_ant = 0;
1361 int res;
1b8ec87a 1362 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1363 if (!res) {
1364 if (nla_put_u32(msg,
1365 NL80211_ATTR_WIPHY_ANTENNA_TX,
1366 tx_ant) ||
1367 nla_put_u32(msg,
1368 NL80211_ATTR_WIPHY_ANTENNA_RX,
1369 rx_ant))
1370 goto nla_put_failure;
1371 }
1372 }
a293911d 1373
86e8cf98
JB		 1374 state->split_start++;
1375 if (state->split)
3713b4e3
JB		 1376 break;
1377 case 2:
1378 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1379 rdev->wiphy.interface_modes))
3713b4e3 1380 goto nla_put_failure;
86e8cf98
JB		 1381 state->split_start++;
1382 if (state->split)
3713b4e3
JB		 1383 break;
1384 case 3:
1385 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1386 if (!nl_bands)
1387 goto nla_put_failure;
f7ca38df 1388
86e8cf98
JB		 1389 for (band = state->band_start;
1390 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1391 struct ieee80211_supported_band *sband;
2e161f78 1392
1b8ec87a 1393 sband = rdev->wiphy.bands[band];
2e161f78 1394
3713b4e3
JB		 1395 if (!sband)
1396 continue;
1397
1398 nl_band = nla_nest_start(msg, band);
1399 if (!nl_band)
2e161f78 1400 goto nla_put_failure;
3713b4e3 1401
86e8cf98 1402 switch (state->chan_start) {
3713b4e3
JB		 1403 case 0:
1404 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1405 goto nla_put_failure;
86e8cf98
JB		 1406 state->chan_start++;
1407 if (state->split)
3713b4e3
JB		 1408 break;
1409 default:
1410 /* add frequencies */
1411 nl_freqs = nla_nest_start(
1412 msg, NL80211_BAND_ATTR_FREQS);
1413 if (!nl_freqs)
1414 goto nla_put_failure;
1415
86e8cf98 1416 for (i = state->chan_start - 1;
3713b4e3
JB		 1417 i < sband->n_channels;
1418 i++) {
1419 nl_freq = nla_nest_start(msg, i);
1420 if (!nl_freq)
1421 goto nla_put_failure;
1422
1423 chan = &sband->channels[i];
1424
86e8cf98
JB		 1425 if (nl80211_msg_put_channel(
1426 msg, chan,
1427 state->split))
3713b4e3
JB		 1428 goto nla_put_failure;
1429
1430 nla_nest_end(msg, nl_freq);
86e8cf98 1431 if (state->split)
3713b4e3
JB		 1432 break;
1433 }
1434 if (i < sband->n_channels)
86e8cf98 1435 state->chan_start = i + 2;
3713b4e3 1436 else
86e8cf98 1437 state->chan_start = 0;
3713b4e3
JB		 1438 nla_nest_end(msg, nl_freqs);
1439 }
1440
1441 nla_nest_end(msg, nl_band);
1442
86e8cf98 1443 if (state->split) {
3713b4e3 1444 /* start again here */
86e8cf98 1445 if (state->chan_start)
3713b4e3
JB		 1446 band--;
1447 break;
2e161f78 1448 }
2e161f78 1449 }
3713b4e3 1450 nla_nest_end(msg, nl_bands);
2e161f78 1451
3713b4e3 1452 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1453 state->band_start = band + 1;
3713b4e3 1454 else
86e8cf98 1455 state->band_start = 0;
74b70a4e 1456
3713b4e3 1457 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1458 if (state->band_start == 0 && state->chan_start == 0)
1459 state->split_start++;
1460 if (state->split)
3713b4e3
JB		 1461 break;
1462 case 4:
1463 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1464 if (!nl_cmds)
2e161f78
JB		 1465 goto nla_put_failure;
1466
3713b4e3
JB		 1467 i = 0;
1468#define CMD(op, n) \
1469 do { \
1b8ec87a 1470 if (rdev->ops->op) { \
3713b4e3
JB		 1471 i++; \
1472 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1473 goto nla_put_failure; \
1474 } \
1475 } while (0)
1476
1477 CMD(add_virtual_intf, NEW_INTERFACE);
1478 CMD(change_virtual_intf, SET_INTERFACE);
1479 CMD(add_key, NEW_KEY);
1480 CMD(start_ap, START_AP);
1481 CMD(add_station, NEW_STATION);
1482 CMD(add_mpath, NEW_MPATH);
1483 CMD(update_mesh_config, SET_MESH_CONFIG);
1484 CMD(change_bss, SET_BSS);
1485 CMD(auth, AUTHENTICATE);
1486 CMD(assoc, ASSOCIATE);
1487 CMD(deauth, DEAUTHENTICATE);
1488 CMD(disassoc, DISASSOCIATE);
1489 CMD(join_ibss, JOIN_IBSS);
1490 CMD(join_mesh, JOIN_MESH);
1491 CMD(set_pmksa, SET_PMKSA);
1492 CMD(del_pmksa, DEL_PMKSA);
1493 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1494 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1495 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1496 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1497 CMD(mgmt_tx, FRAME);
1498 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1499 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1500 i++;
1501 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1502 goto nla_put_failure;
2e161f78 1503 }
1b8ec87a
ZG		 1504 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1505 rdev->ops->join_mesh) {
3713b4e3
JB		 1506 i++;
1507 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1508 goto nla_put_failure;
1509 }
1510 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1511 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1512 CMD(tdls_mgmt, TDLS_MGMT);
1513 CMD(tdls_oper, TDLS_OPER);
1514 }
1b8ec87a 1515 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1516 CMD(sched_scan_start, START_SCHED_SCAN);
1517 CMD(probe_client, PROBE_CLIENT);
1518 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1519 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1520 i++;
1521 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1522 goto nla_put_failure;
1523 }
1524 CMD(start_p2p_device, START_P2P_DEVICE);
1525 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1526#ifdef CONFIG_NL80211_TESTMODE
1527 CMD(testmode_cmd, TESTMODE);
1528#endif
86e8cf98 1529 if (state->split) {
5de17984
AS		 1530 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1531 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1532 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1533 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1534 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1535 if (rdev->wiphy.features &
1536 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1537 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1538 }
02df00eb 1539 /* add into the if now */
3713b4e3 1540#undef CMD
ff1b6e69 1541
1b8ec87a 1542 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1543 i++;
1544 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1545 goto nla_put_failure;
ff1b6e69
JB		 1546 }
1547
1b8ec87a 1548 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1549 i++;
1550 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1551 goto nla_put_failure;
1552 }
1553
1554 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1555 state->split_start++;
1556 if (state->split)
3713b4e3
JB		 1557 break;
1558 case 5:
1b8ec87a
ZG		 1559 if (rdev->ops->remain_on_channel &&
1560 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1561 nla_put_u32(msg,
1562 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1563 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1564 goto nla_put_failure;
1565
1b8ec87a 1566 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1567 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1568 goto nla_put_failure;
1569
1570 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1571 goto nla_put_failure;
86e8cf98
JB		 1572 state->split_start++;
1573 if (state->split)
3713b4e3
JB		 1574 break;
1575 case 6:
1576#ifdef CONFIG_PM
1b8ec87a 1577 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1578 goto nla_put_failure;
86e8cf98
JB		 1579 state->split_start++;
1580 if (state->split)
3713b4e3
JB		 1581 break;
1582#else
86e8cf98 1583 state->split_start++;
dfb89c56 1584#endif
3713b4e3
JB		 1585 case 7:
1586 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1587 rdev->wiphy.software_iftypes))
3713b4e3 1588 goto nla_put_failure;
ff1b6e69 1589
1b8ec87a 1590 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1591 state->split))
3713b4e3 1592 goto nla_put_failure;
7527a782 1593
86e8cf98
JB		 1594 state->split_start++;
1595 if (state->split)
3713b4e3
JB		 1596 break;
1597 case 8:
1b8ec87a 1598 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1599 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1600 rdev->wiphy.ap_sme_capa))
3713b4e3 1601 goto nla_put_failure;
7527a782 1602
1b8ec87a 1603 features = rdev->wiphy.features;
fe1abafd
JB		 1604 /*
1605 * We can only add the per-channel limit information if the
1606 * dump is split, otherwise it makes it too big. Therefore
1607 * only advertise it in that case.
1608 */
86e8cf98 1609 if (state->split)
fe1abafd
JB		 1610 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1611 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1612 goto nla_put_failure;
562a7480 1613
1b8ec87a 1614 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1615 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1616 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1617 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1618 goto nla_put_failure;
1f074bd8 1619
1b8ec87a
ZG		 1620 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1621 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1622 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1623 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1624 goto nla_put_failure;
7e7c8926 1625
3713b4e3
JB		 1626 /*
1627 * Any information below this point is only available to
1628 * applications that can deal with it being split. This
1629 * helps ensure that newly added capabilities don't break
1630 * older tools by overrunning their buffers.
1631 *
1632 * We still increment split_start so that in the split
1633 * case we'll continue with more data in the next round,
1634 * but break unconditionally so unsplit data stops here.
1635 */
86e8cf98 1636 state->split_start++;
3713b4e3
JB		 1637 break;
1638 case 9:
1b8ec87a 1639 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1640 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1641 rdev->wiphy.extended_capabilities_len,
1642 rdev->wiphy.extended_capabilities) ||
fe1abafd 1643 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1644 rdev->wiphy.extended_capabilities_len,
1645 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1646 goto nla_put_failure;
a50df0c4 1647
1b8ec87a 1648 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1649 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1650 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1651 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1652 goto nla_put_failure;
1653
be29b99a
AK		 1654 state->split_start++;
1655 break;
1656 case 10:
1b8ec87a 1657 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1658 goto nla_put_failure;
1659
1b8ec87a 1660 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1661 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1662 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1663 goto nla_put_failure;
b43504cf 1664
1b8ec87a 1665 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1666 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1667 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1668 goto nla_put_failure;
1669
ad7e718c
JB		 1670 state->split_start++;
1671 break;
1672 case 11:
1b8ec87a 1673 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1674 const struct nl80211_vendor_cmd_info *info;
1675 struct nlattr *nested;
1676
1677 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1678 if (!nested)
1679 goto nla_put_failure;
1680
1b8ec87a
ZG		 1681 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1682 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1683 if (nla_put(msg, i + 1, sizeof(*info), info))
1684 goto nla_put_failure;
1685 }
1686 nla_nest_end(msg, nested);
1687 }
1688
1b8ec87a 1689 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1690 const struct nl80211_vendor_cmd_info *info;
1691 struct nlattr *nested;
ad7e718c 1692
567ffc35
JB		 1693 nested = nla_nest_start(msg,
1694 NL80211_ATTR_VENDOR_EVENTS);
1695 if (!nested)
ad7e718c 1696 goto nla_put_failure;
567ffc35 1697
1b8ec87a
ZG		 1698 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1699 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1700 if (nla_put(msg, i + 1, sizeof(*info), info))
1701 goto nla_put_failure;
1702 }
1703 nla_nest_end(msg, nested);
1704 }
9a774c78
AO		 1705 state->split_start++;
1706 break;
1707 case 12:
1708 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1709 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1710 rdev->wiphy.max_num_csa_counters))
1711 goto nla_put_failure;
01e0daa4 1712
1bdd716c
AN		 1713 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1714 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1715 goto nla_put_failure;
1716
d75bb06b
GKS		 1717 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1718 sizeof(rdev->wiphy.ext_features),
1719 rdev->wiphy.ext_features))
1720 goto nla_put_failure;
1721
3713b4e3 1722 /* done */
86e8cf98 1723 state->split_start = 0;
3713b4e3
JB		 1724 break;
1725 }
3bb20556 1726 finish:
053c095a
JB		 1727 genlmsg_end(msg, hdr);
1728 return 0;
55682965
JB		 1729
1730 nla_put_failure:
bc3ed28c
TG		 1731 genlmsg_cancel(msg, hdr);
1732 return -EMSGSIZE;
55682965
JB		 1733}
1734
86e8cf98
JB		 1735static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1736 struct netlink_callback *cb,
1737 struct nl80211_dump_wiphy_state *state)
1738{
1739 struct nlattr **tb = nl80211_fam.attrbuf;
1740 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1741 tb, nl80211_fam.maxattr, nl80211_policy);
1742 /* ignore parse errors for backward compatibility */
1743 if (ret)
1744 return 0;
1745
1746 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1747 if (tb[NL80211_ATTR_WIPHY])
1748 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1749 if (tb[NL80211_ATTR_WDEV])
1750 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1751 if (tb[NL80211_ATTR_IFINDEX]) {
1752 struct net_device *netdev;
1753 struct cfg80211_registered_device *rdev;
1754 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1755
7f2b8562 1756 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1757 if (!netdev)
1758 return -ENODEV;
1759 if (netdev->ieee80211_ptr) {
f26cbf40 1760 rdev = wiphy_to_rdev(
86e8cf98
JB		 1761 netdev->ieee80211_ptr->wiphy);
1762 state->filter_wiphy = rdev->wiphy_idx;
1763 }
86e8cf98
JB		 1764 }
1765
1766 return 0;
1767}
1768
55682965
JB		 1769static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1770{
645e77de 1771 int idx = 0, ret;
86e8cf98 1772 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1773 struct cfg80211_registered_device *rdev;
3a5a423b 1774
5fe231e8 1775 rtnl_lock();
86e8cf98
JB		 1776 if (!state) {
1777 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1778 if (!state) {
1779 rtnl_unlock();
86e8cf98 1780 return -ENOMEM;
3713b4e3 1781 }
86e8cf98
JB		 1782 state->filter_wiphy = -1;
1783 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1784 if (ret) {
1785 kfree(state);
1786 rtnl_unlock();
1787 return ret;
3713b4e3 1788 }
86e8cf98 1789 cb->args[0] = (long)state;
3713b4e3
JB		 1790 }
1791
1b8ec87a
ZG		 1792 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1793 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1794 continue;
86e8cf98 1795 if (++idx <= state->start)
55682965 1796 continue;
86e8cf98 1797 if (state->filter_wiphy != -1 &&
1b8ec87a 1798 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1799 continue;
1800 /* attempt to fit multiple wiphy data chunks into the skb */
1801 do {
3bb20556
JB		 1802 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1803 skb,
3713b4e3
JB		 1804 NETLINK_CB(cb->skb).portid,
1805 cb->nlh->nlmsg_seq,
86e8cf98 1806 NLM_F_MULTI, state);
3713b4e3
JB		 1807 if (ret < 0) {
1808 /*
1809 * If sending the wiphy data didn't fit (ENOBUFS
1810 * or EMSGSIZE returned), this SKB is still
1811 * empty (so it's not too big because another
1812 * wiphy dataset is already in the skb) and
1813 * we've not tried to adjust the dump allocation
1814 * yet ... then adjust the alloc size to be
1815 * bigger, and return 1 but with the empty skb.
1816 * This results in an empty message being RX'ed
1817 * in userspace, but that is ignored.
1818 *
1819 * We can then retry with the larger buffer.
1820 */
1821 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1822 !skb->len && !state->split &&
3713b4e3
JB		 1823 cb->min_dump_alloc < 4096) {
1824 cb->min_dump_alloc = 4096;
f12cb289 1825 state->split_start = 0;
d98cae64 1826 rtnl_unlock();
3713b4e3
JB		 1827 return 1;
1828 }
1829 idx--;
1830 break;
645e77de 1831 }
86e8cf98 1832 } while (state->split_start > 0);
3713b4e3 1833 break;
55682965 1834 }
5fe231e8 1835 rtnl_unlock();
55682965 1836
86e8cf98 1837 state->start = idx;
55682965
JB		 1838
1839 return skb->len;
1840}
1841
86e8cf98
JB		 1842static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1843{
1844 kfree((void *)cb->args[0]);
1845 return 0;
1846}
1847
55682965
JB		 1848static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1849{
1850 struct sk_buff *msg;
1b8ec87a 1851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1852 struct nl80211_dump_wiphy_state state = {};
55682965 1853
645e77de 1854 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1855 if (!msg)
4c476991 1856 return -ENOMEM;
55682965 1857
3bb20556
JB		 1858 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1859 info->snd_portid, info->snd_seq, 0,
86e8cf98 1860 &state) < 0) {
4c476991
JB		 1861 nlmsg_free(msg);
1862 return -ENOBUFS;
1863 }
55682965 1864
134e6375 1865 return genlmsg_reply(msg, info);
55682965
JB		 1866}
1867
31888487
JM		 1868static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1869 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1870 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1871 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1872 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1873 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1874};
1875
1876static int parse_txq_params(struct nlattr *tb[],
1877 struct ieee80211_txq_params *txq_params)
1878{
a3304b0a 1879 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1880 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1881 !tb[NL80211_TXQ_ATTR_AIFS])
1882 return -EINVAL;
1883
a3304b0a 1884 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1885 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1886 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1887 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1888 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1889
a3304b0a
JB		 1890 if (txq_params->ac >= NL80211_NUM_ACS)
1891 return -EINVAL;
1892
31888487
JM		 1893 return 0;
1894}
1895
f444de05
JB		 1896static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1897{
1898 /*
cc1d2806
JB		 1899 * You can only set the channel explicitly for WDS interfaces,
1900 * all others have their channel managed via their respective
1901 * "establish a connection" command (connect, join, ...)
1902 *
1903 * For AP/GO and mesh mode, the channel can be set with the
1904 * channel userspace API, but is only stored and passed to the
1905 * low-level driver when the AP starts or the mesh is joined.
1906 * This is for backward compatibility, userspace can also give
1907 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1908 *
1909 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1910 * whatever else is going on, so they have their own special
1911 * operation to set the monitor channel if possible.
f444de05
JB		 1912 */
1913 return !wdev ||
1914 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1915 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1916 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1917 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1918}
1919
683b6d3b
JB		 1920static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1921 struct genl_info *info,
1922 struct cfg80211_chan_def *chandef)
1923{
dbeca2ea 1924 u32 control_freq;
683b6d3b
JB		 1925
1926 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1927 return -EINVAL;
1928
1929 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1930
1931 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1932 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1933 chandef->center_freq1 = control_freq;
1934 chandef->center_freq2 = 0;
683b6d3b
JB		 1935
1936 /* Primary channel not allowed */
1937 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1938 return -EINVAL;
1939
3d9d1d66
JB		 1940 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1941 enum nl80211_channel_type chantype;
1942
1943 chantype = nla_get_u32(
1944 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1945
1946 switch (chantype) {
1947 case NL80211_CHAN_NO_HT:
1948 case NL80211_CHAN_HT20:
1949 case NL80211_CHAN_HT40PLUS:
1950 case NL80211_CHAN_HT40MINUS:
1951 cfg80211_chandef_create(chandef, chandef->chan,
1952 chantype);
1953 break;
1954 default:
1955 return -EINVAL;
1956 }
1957 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1958 chandef->width =
1959 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1960 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1961 chandef->center_freq1 =
1962 nla_get_u32(
1963 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1964 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1965 chandef->center_freq2 =
1966 nla_get_u32(
1967 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1968 }
1969
9f5e8f6e 1970 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1971 return -EINVAL;
1972
9f5e8f6e
JB		 1973 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1974 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1975 return -EINVAL;
1976
2f301ab2
SW		 1977 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1978 chandef->width == NL80211_CHAN_WIDTH_10) &&
1979 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1980 return -EINVAL;
1981
683b6d3b
JB		 1982 return 0;
1983}
1984
f444de05 1985static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1986 struct net_device *dev,
f444de05
JB		 1987 struct genl_info *info)
1988{
683b6d3b 1989 struct cfg80211_chan_def chandef;
f444de05 1990 int result;
e8c9bd5b 1991 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1992 struct wireless_dev *wdev = NULL;
e8c9bd5b 1993
e16821bc
JM		 1994 if (dev)
1995 wdev = dev->ieee80211_ptr;
f444de05
JB		 1996 if (!nl80211_can_set_dev_channel(wdev))
1997 return -EOPNOTSUPP;
e16821bc
JM		 1998 if (wdev)
1999 iftype = wdev->iftype;
f444de05 2000
683b6d3b
JB		 2001 result = nl80211_parse_chandef(rdev, info, &chandef);
2002 if (result)
2003 return result;
f444de05 2004
e8c9bd5b 2005 switch (iftype) {
aa430da4
JB		 2006 case NL80211_IFTYPE_AP:
2007 case NL80211_IFTYPE_P2P_GO:
174e0cd2 2008 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2009 result = -EINVAL;
2010 break;
2011 }
e16821bc
JM		 2012 if (wdev->beacon_interval) {
2013 if (!dev || !rdev->ops->set_ap_chanwidth ||
2014 !(rdev->wiphy.features &
2015 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2016 result = -EBUSY;
2017 break;
2018 }
2019
2020 /* Only allow dynamic channel width changes */
2021 if (chandef.chan != wdev->preset_chandef.chan) {
2022 result = -EBUSY;
2023 break;
2024 }
2025 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2026 if (result)
2027 break;
2028 }
683b6d3b 2029 wdev->preset_chandef = chandef;
aa430da4
JB		 2030 result = 0;
2031 break;
cc1d2806 2032 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2033 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2034 break;
e8c9bd5b 2035 case NL80211_IFTYPE_MONITOR:
683b6d3b 2036 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2037 break;
aa430da4 2038 default:
e8c9bd5b 2039 result = -EINVAL;
f444de05 2040 }
f444de05
JB		 2041
2042 return result;
2043}
2044
2045static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2046{
4c476991
JB		 2047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2048 struct net_device *netdev = info->user_ptr[1];
f444de05 2049
e16821bc 2050 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2051}
2052
e8347eba
BJ		 2053static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2054{
43b19952
JB		 2055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2056 struct net_device *dev = info->user_ptr[1];
2057 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2058 const u8 *bssid;
e8347eba
BJ		 2059
2060 if (!info->attrs[NL80211_ATTR_MAC])
2061 return -EINVAL;
2062
43b19952
JB		 2063 if (netif_running(dev))
2064 return -EBUSY;
e8347eba 2065
43b19952
JB		 2066 if (!rdev->ops->set_wds_peer)
2067 return -EOPNOTSUPP;
e8347eba 2068
43b19952
JB		 2069 if (wdev->iftype != NL80211_IFTYPE_WDS)
2070 return -EOPNOTSUPP;
e8347eba
BJ		 2071
2072 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2073 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2074}
2075
2076
55682965
JB		 2077static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2078{
2079 struct cfg80211_registered_device *rdev;
f444de05
JB		 2080 struct net_device *netdev = NULL;
2081 struct wireless_dev *wdev;
a1e567c8 2082 int result = 0, rem_txq_params = 0;
31888487 2083 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2084 u32 changed;
2085 u8 retry_short = 0, retry_long = 0;
2086 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2087 u8 coverage_class = 0;
55682965 2088
5fe231e8
JB		 2089 ASSERT_RTNL();
2090
f444de05
JB		 2091 /*
2092 * Try to find the wiphy and netdev. Normally this
2093 * function shouldn't need the netdev, but this is
2094 * done for backward compatibility -- previously
2095 * setting the channel was done per wiphy, but now
2096 * it is per netdev. Previous userland like hostapd
2097 * also passed a netdev to set_wiphy, so that it is
2098 * possible to let that go to the right netdev!
2099 */
4bbf4d56 2100
f444de05
JB		 2101 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2102 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2103
7f2b8562 2104 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2105 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2106 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2107 else
f444de05 2108 netdev = NULL;
4bbf4d56
JB		 2109 }
2110
f444de05 2111 if (!netdev) {
878d9ec7
JB		 2112 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2113 info->attrs);
5fe231e8 2114 if (IS_ERR(rdev))
4c476991 2115 return PTR_ERR(rdev);
f444de05
JB		 2116 wdev = NULL;
2117 netdev = NULL;
2118 result = 0;
71fe96bf 2119 } else
f444de05 2120 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2121
2122 /*
2123 * end workaround code, by now the rdev is available
2124 * and locked, and wdev may or may not be NULL.
2125 */
4bbf4d56
JB		 2126
2127 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2128 result = cfg80211_dev_rename(
2129 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2130
4bbf4d56 2131 if (result)
7f2b8562 2132 return result;
31888487
JM		 2133
2134 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2135 struct ieee80211_txq_params txq_params;
2136 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2137
7f2b8562
YX		 2138 if (!rdev->ops->set_txq_params)
2139 return -EOPNOTSUPP;
31888487 2140
7f2b8562
YX		 2141 if (!netdev)
2142 return -EINVAL;
f70f01c2 2143
133a3ff2 2144 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2145 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2146 return -EINVAL;
133a3ff2 2147
7f2b8562
YX		 2148 if (!netif_running(netdev))
2149 return -ENETDOWN;
2b5f8b0b 2150
31888487
JM		 2151 nla_for_each_nested(nl_txq_params,
2152 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2153 rem_txq_params) {
ae811e21
JB		 2154 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2155 nla_data(nl_txq_params),
2156 nla_len(nl_txq_params),
2157 txq_params_policy);
2158 if (result)
2159 return result;
31888487
JM		 2160 result = parse_txq_params(tb, &txq_params);
2161 if (result)
7f2b8562 2162 return result;
31888487 2163
e35e4d28
HG		 2164 result = rdev_set_txq_params(rdev, netdev,
2165 &txq_params);
31888487 2166 if (result)
7f2b8562 2167 return result;
31888487
JM		 2168 }
2169 }
55682965 2170
72bdcf34 2171 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2172 result = __nl80211_set_channel(
2173 rdev,
2174 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2175 info);
72bdcf34 2176 if (result)
7f2b8562 2177 return result;
72bdcf34
JM		 2178 }
2179
98d2ff8b 2180 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2181 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2182 enum nl80211_tx_power_setting type;
2183 int idx, mbm = 0;
2184
c8442118
JB		 2185 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2186 txp_wdev = NULL;
2187
7f2b8562
YX		 2188 if (!rdev->ops->set_tx_power)
2189 return -EOPNOTSUPP;
98d2ff8b
JO		 2190
2191 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2192 type = nla_get_u32(info->attrs[idx]);
2193
2194 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2195 (type != NL80211_TX_POWER_AUTOMATIC))
2196 return -EINVAL;
98d2ff8b
JO		 2197
2198 if (type != NL80211_TX_POWER_AUTOMATIC) {
2199 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2200 mbm = nla_get_u32(info->attrs[idx]);
2201 }
2202
c8442118 2203 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2204 if (result)
7f2b8562 2205 return result;
98d2ff8b
JO		 2206 }
2207
afe0cbf8
BR		 2208 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2209 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2210 u32 tx_ant, rx_ant;
7f531e03
BR		 2211 if ((!rdev->wiphy.available_antennas_tx &&
2212 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2213 !rdev->ops->set_antenna)
2214 return -EOPNOTSUPP;
afe0cbf8
BR		 2215
2216 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2217 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2218
a7ffac95 2219 /* reject antenna configurations which don't match the
7f531e03
BR		 2220 * available antenna masks, except for the "all" mask */
2221 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2222 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2223 return -EINVAL;
a7ffac95 2224
7f531e03
BR		 2225 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2226 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2227
e35e4d28 2228 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2229 if (result)
7f2b8562 2230 return result;
afe0cbf8
BR		 2231 }
2232
b9a5f8ca
JM		 2233 changed = 0;
2234
2235 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2236 retry_short = nla_get_u8(
2237 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2238 if (retry_short == 0)
2239 return -EINVAL;
2240
b9a5f8ca
JM		 2241 changed |= WIPHY_PARAM_RETRY_SHORT;
2242 }
2243
2244 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2245 retry_long = nla_get_u8(
2246 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2247 if (retry_long == 0)
2248 return -EINVAL;
2249
b9a5f8ca
JM		 2250 changed |= WIPHY_PARAM_RETRY_LONG;
2251 }
2252
2253 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2254 frag_threshold = nla_get_u32(
2255 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2256 if (frag_threshold < 256)
2257 return -EINVAL;
2258
b9a5f8ca
JM		 2259 if (frag_threshold != (u32) -1) {
2260 /*
2261 * Fragments (apart from the last one) are required to
2262 * have even length. Make the fragmentation code
2263 * simpler by stripping LSB should someone try to use
2264 * odd threshold value.
2265 */
2266 frag_threshold &= ~0x1;
2267 }
2268 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2269 }
2270
2271 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2272 rts_threshold = nla_get_u32(
2273 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2274 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2275 }
2276
81077e82 2277 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2278 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2279 return -EINVAL;
2280
81077e82
LT		 2281 coverage_class = nla_get_u8(
2282 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2283 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2284 }
2285
3057dbfd
LB		 2286 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2287 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2288 return -EOPNOTSUPP;
2289
2290 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2291 }
2292
b9a5f8ca
JM		 2293 if (changed) {
2294 u8 old_retry_short, old_retry_long;
2295 u32 old_frag_threshold, old_rts_threshold;
81077e82 2296 u8 old_coverage_class;
b9a5f8ca 2297
7f2b8562
YX		 2298 if (!rdev->ops->set_wiphy_params)
2299 return -EOPNOTSUPP;
b9a5f8ca
JM		 2300
2301 old_retry_short = rdev->wiphy.retry_short;
2302 old_retry_long = rdev->wiphy.retry_long;
2303 old_frag_threshold = rdev->wiphy.frag_threshold;
2304 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2305 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2306
2307 if (changed & WIPHY_PARAM_RETRY_SHORT)
2308 rdev->wiphy.retry_short = retry_short;
2309 if (changed & WIPHY_PARAM_RETRY_LONG)
2310 rdev->wiphy.retry_long = retry_long;
2311 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2312 rdev->wiphy.frag_threshold = frag_threshold;
2313 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2314 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2315 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2316 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2317
e35e4d28 2318 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2319 if (result) {
2320 rdev->wiphy.retry_short = old_retry_short;
2321 rdev->wiphy.retry_long = old_retry_long;
2322 rdev->wiphy.frag_threshold = old_frag_threshold;
2323 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2324 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2325 }
2326 }
7f2b8562 2327 return 0;
55682965
JB		 2328}
2329
71bbc994
JB		 2330static inline u64 wdev_id(struct wireless_dev *wdev)
2331{
2332 return (u64)wdev->identifier |
f26cbf40 2333 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2334}
55682965 2335
683b6d3b 2336static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2337 const struct cfg80211_chan_def *chandef)
683b6d3b 2338{
601555cd
JB		 2339 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2340 return -EINVAL;
3d9d1d66 2341
683b6d3b
JB		 2342 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2343 chandef->chan->center_freq))
2344 return -ENOBUFS;
3d9d1d66
JB		 2345 switch (chandef->width) {
2346 case NL80211_CHAN_WIDTH_20_NOHT:
2347 case NL80211_CHAN_WIDTH_20:
2348 case NL80211_CHAN_WIDTH_40:
2349 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2350 cfg80211_get_chandef_type(chandef)))
2351 return -ENOBUFS;
2352 break;
2353 default:
2354 break;
2355 }
2356 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2357 return -ENOBUFS;
2358 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2359 return -ENOBUFS;
2360 if (chandef->center_freq2 &&
2361 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2362 return -ENOBUFS;
2363 return 0;
2364}
2365
15e47304 2366static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2367 struct cfg80211_registered_device *rdev,
8f894be2 2368 struct wireless_dev *wdev, bool removal)
55682965 2369{
72fb2abc 2370 struct net_device *dev = wdev->netdev;
8f894be2 2371 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2372 void *hdr;
2373
8f894be2
TB		 2374 if (removal)
2375 cmd = NL80211_CMD_DEL_INTERFACE;
2376
2377 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2378 if (!hdr)
2379 return -1;
2380
72fb2abc
JB		 2381 if (dev &&
2382 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2383 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2384 goto nla_put_failure;
2385
2386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2387 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2388 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2389 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2390 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2391 rdev->devlist_generation ^
2392 (cfg80211_rdev_list_generation << 2)))
2393 goto nla_put_failure;
f5ea9120 2394
5b7ccaf3 2395 if (rdev->ops->get_channel) {
683b6d3b
JB		 2396 int ret;
2397 struct cfg80211_chan_def chandef;
2398
2399 ret = rdev_get_channel(rdev, wdev, &chandef);
2400 if (ret == 0) {
2401 if (nl80211_send_chandef(msg, &chandef))
2402 goto nla_put_failure;
2403 }
d91df0e3
PF		 2404 }
2405
b84e7a05
AQ		 2406 if (wdev->ssid_len) {
2407 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2408 goto nla_put_failure;
2409 }
2410
053c095a
JB		 2411 genlmsg_end(msg, hdr);
2412 return 0;
55682965
JB		 2413
2414 nla_put_failure:
bc3ed28c
TG		 2415 genlmsg_cancel(msg, hdr);
2416 return -EMSGSIZE;
55682965
JB		 2417}
2418
2419static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2420{
2421 int wp_idx = 0;
2422 int if_idx = 0;
2423 int wp_start = cb->args[0];
2424 int if_start = cb->args[1];
f5ea9120 2425 struct cfg80211_registered_device *rdev;
55682965
JB		 2426 struct wireless_dev *wdev;
2427
5fe231e8 2428 rtnl_lock();
f5ea9120
JB		 2429 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2430 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2431 continue;
bba95fef
JB		 2432 if (wp_idx < wp_start) {
2433 wp_idx++;
55682965 2434 continue;
bba95fef 2435 }
55682965
JB		 2436 if_idx = 0;
2437
89a54e48 2438 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2439 if (if_idx < if_start) {
2440 if_idx++;
55682965 2441 continue;
bba95fef 2442 }
15e47304 2443 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2444 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2445 rdev, wdev, false) < 0) {
bba95fef
JB		 2446 goto out;
2447 }
2448 if_idx++;
55682965 2449 }
bba95fef
JB		 2450
2451 wp_idx++;
55682965 2452 }
bba95fef 2453 out:
5fe231e8 2454 rtnl_unlock();
55682965
JB		 2455
2456 cb->args[0] = wp_idx;
2457 cb->args[1] = if_idx;
2458
2459 return skb->len;
2460}
2461
2462static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2463{
2464 struct sk_buff *msg;
1b8ec87a 2465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2466 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2467
fd2120ca 2468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2469 if (!msg)
4c476991 2470 return -ENOMEM;
55682965 2471
15e47304 2472 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2473 rdev, wdev, false) < 0) {
4c476991
JB		 2474 nlmsg_free(msg);
2475 return -ENOBUFS;
2476 }
55682965 2477
134e6375 2478 return genlmsg_reply(msg, info);
55682965
JB		 2479}
2480
66f7ac50
MW		 2481static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2482 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2483 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2484 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2485 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2486 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2487 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2488};
2489
2490static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2491{
2492 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2493 int flag;
2494
2495 *mntrflags = 0;
2496
2497 if (!nla)
2498 return -EINVAL;
2499
2500 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2501 nla, mntr_flags_policy))
2502 return -EINVAL;
2503
2504 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2505 if (flags[flag])
2506 *mntrflags |= (1<<flag);
2507
2508 return 0;
2509}
2510
9bc383de 2511static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2512 struct net_device *netdev, u8 use_4addr,
2513 enum nl80211_iftype iftype)
9bc383de 2514{
ad4bb6f8 2515 if (!use_4addr) {
f350a0a8 2516 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2517 return -EBUSY;
9bc383de 2518 return 0;
ad4bb6f8 2519 }
9bc383de
JB		 2520
2521 switch (iftype) {
2522 case NL80211_IFTYPE_AP_VLAN:
2523 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2524 return 0;
2525 break;
2526 case NL80211_IFTYPE_STATION:
2527 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2528 return 0;
2529 break;
2530 default:
2531 break;
2532 }
2533
2534 return -EOPNOTSUPP;
2535}
2536
55682965
JB		 2537static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2538{
4c476991 2539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2540 struct vif_params params;
e36d56b6 2541 int err;
04a773ad 2542 enum nl80211_iftype otype, ntype;
4c476991 2543 struct net_device *dev = info->user_ptr[1];
92ffe055 2544 u32 _flags, *flags = NULL;
ac7f9cfa 2545 bool change = false;
55682965 2546
2ec600d6
LCC		 2547 memset(&params, 0, sizeof(params));
2548
04a773ad 2549 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2550
723b038d 2551 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2552 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2553 if (otype != ntype)
ac7f9cfa 2554 change = true;
4c476991
JB		 2555 if (ntype > NL80211_IFTYPE_MAX)
2556 return -EINVAL;
723b038d
JB		 2557 }
2558
92ffe055 2559 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2560 struct wireless_dev *wdev = dev->ieee80211_ptr;
2561
4c476991
JB		 2562 if (ntype != NL80211_IFTYPE_MESH_POINT)
2563 return -EINVAL;
29cbe68c
JB		 2564 if (netif_running(dev))
2565 return -EBUSY;
2566
2567 wdev_lock(wdev);
2568 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2569 IEEE80211_MAX_MESH_ID_LEN);
2570 wdev->mesh_id_up_len =
2571 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2572 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2573 wdev->mesh_id_up_len);
2574 wdev_unlock(wdev);
2ec600d6
LCC		 2575 }
2576
8b787643
FF		 2577 if (info->attrs[NL80211_ATTR_4ADDR]) {
2578 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2579 change = true;
ad4bb6f8 2580 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2581 if (err)
4c476991 2582 return err;
8b787643
FF		 2583 } else {
2584 params.use_4addr = -1;
2585 }
2586
92ffe055 2587 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2588 if (ntype != NL80211_IFTYPE_MONITOR)
2589 return -EINVAL;
92ffe055
JB		 2590 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2591 &_flags);
ac7f9cfa 2592 if (err)
4c476991 2593 return err;
ac7f9cfa
JB		 2594
2595 flags = &_flags;
2596 change = true;
92ffe055 2597 }
3b85875a 2598
18003297 2599 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2600 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2601 return -EOPNOTSUPP;
2602
ac7f9cfa 2603 if (change)
3d54d255 2604 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2605 else
2606 err = 0;
60719ffd 2607
9bc383de
JB		 2608 if (!err && params.use_4addr != -1)
2609 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2610
55682965
JB		 2611 return err;
2612}
2613
2614static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2615{
4c476991 2616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2617 struct vif_params params;
84efbb84 2618 struct wireless_dev *wdev;
8f894be2 2619 struct sk_buff *msg, *event;
55682965
JB		 2620 int err;
2621 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2622 u32 flags;
55682965 2623
78f22b6a
JB		 2624 /* to avoid failing a new interface creation due to pending removal */
2625 cfg80211_destroy_ifaces(rdev);
2626
2ec600d6
LCC		 2627 memset(&params, 0, sizeof(params));
2628
55682965
JB		 2629 if (!info->attrs[NL80211_ATTR_IFNAME])
2630 return -EINVAL;
2631
2632 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2633 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2634 if (type > NL80211_IFTYPE_MAX)
2635 return -EINVAL;
2636 }
2637
79c97e97 2638 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2639 !(rdev->wiphy.interface_modes & (1 << type)))
2640 return -EOPNOTSUPP;
55682965 2641
e8f479b1
BG		 2642 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2643 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2644 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2645 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2646 ETH_ALEN);
2647 if (!is_valid_ether_addr(params.macaddr))
2648 return -EADDRNOTAVAIL;
2649 }
2650
9bc383de 2651 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2652 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2653 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2654 if (err)
4c476991 2655 return err;
9bc383de 2656 }
8b787643 2657
1c90f9d4
JB		 2658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2659 if (!msg)
2660 return -ENOMEM;
2661
66f7ac50
MW		 2662 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2663 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2664 &flags);
e057d3c3 2665
18003297 2666 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2667 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2668 return -EOPNOTSUPP;
2669
e35e4d28
HG		 2670 wdev = rdev_add_virtual_intf(rdev,
2671 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2672 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2673 if (WARN_ON(!wdev)) {
2674 nlmsg_free(msg);
2675 return -EPROTO;
2676 } else if (IS_ERR(wdev)) {
1c90f9d4 2677 nlmsg_free(msg);
84efbb84 2678 return PTR_ERR(wdev);
1c90f9d4 2679 }
2ec600d6 2680
18e5ca65 2681 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2682 wdev->owner_nlportid = info->snd_portid;
2683
98104fde
JB		 2684 switch (type) {
2685 case NL80211_IFTYPE_MESH_POINT:
2686 if (!info->attrs[NL80211_ATTR_MESH_ID])
2687 break;
29cbe68c
JB		 2688 wdev_lock(wdev);
2689 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2690 IEEE80211_MAX_MESH_ID_LEN);
2691 wdev->mesh_id_up_len =
2692 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2693 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2694 wdev->mesh_id_up_len);
2695 wdev_unlock(wdev);
98104fde
JB		 2696 break;
2697 case NL80211_IFTYPE_P2P_DEVICE:
2698 /*
2699 * P2P Device doesn't have a netdev, so doesn't go
2700 * through the netdev notifier and must be added here
2701 */
2702 mutex_init(&wdev->mtx);
2703 INIT_LIST_HEAD(&wdev->event_list);
2704 spin_lock_init(&wdev->event_lock);
2705 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2706 spin_lock_init(&wdev->mgmt_registrations_lock);
2707
98104fde
JB		 2708 wdev->identifier = ++rdev->wdev_id;
2709 list_add_rcu(&wdev->list, &rdev->wdev_list);
2710 rdev->devlist_generation++;
98104fde
JB		 2711 break;
2712 default:
2713 break;
29cbe68c
JB		 2714 }
2715
15e47304 2716 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2717 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2718 nlmsg_free(msg);
2719 return -ENOBUFS;
2720 }
2721
8f894be2
TB		 2722 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2723 if (event) {
2724 if (nl80211_send_iface(event, 0, 0, 0,
2725 rdev, wdev, false) < 0) {
2726 nlmsg_free(event);
2727 goto out;
2728 }
2729
2730 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2731 event, 0, NL80211_MCGRP_CONFIG,
2732 GFP_KERNEL);
2733 }
2734
2735out:
1c90f9d4 2736 return genlmsg_reply(msg, info);
55682965
JB		 2737}
2738
2739static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2740{
4c476991 2741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2742 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2743 struct sk_buff *msg;
2744 int status;
55682965 2745
4c476991
JB		 2746 if (!rdev->ops->del_virtual_intf)
2747 return -EOPNOTSUPP;
55682965 2748
8f894be2
TB		 2749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2750 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2751 nlmsg_free(msg);
2752 msg = NULL;
2753 }
2754
84efbb84
JB		 2755 /*
2756 * If we remove a wireless device without a netdev then clear
2757 * user_ptr[1] so that nl80211_post_doit won't dereference it
2758 * to check if it needs to do dev_put(). Otherwise it crashes
2759 * since the wdev has been freed, unlike with a netdev where
2760 * we need the dev_put() for the netdev to really be freed.
2761 */
2762 if (!wdev->netdev)
2763 info->user_ptr[1] = NULL;
2764
8f894be2
TB		 2765 status = rdev_del_virtual_intf(rdev, wdev);
2766 if (status >= 0 && msg)
2767 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2768 msg, 0, NL80211_MCGRP_CONFIG,
2769 GFP_KERNEL);
2770 else
2771 nlmsg_free(msg);
2772
2773 return status;
55682965
JB		 2774}
2775
1d9d9213
SW		 2776static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2777{
2778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2779 struct net_device *dev = info->user_ptr[1];
2780 u16 noack_map;
2781
2782 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2783 return -EINVAL;
2784
2785 if (!rdev->ops->set_noack_map)
2786 return -EOPNOTSUPP;
2787
2788 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2789
e35e4d28 2790 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2791}
2792
41ade00f
JB		 2793struct get_key_cookie {
2794 struct sk_buff *msg;
2795 int error;
b9454e83 2796 int idx;
41ade00f
JB		 2797};
2798
2799static void get_key_callback(void *c, struct key_params *params)
2800{
b9454e83 2801 struct nlattr *key;
41ade00f
JB		 2802 struct get_key_cookie *cookie = c;
2803
9360ffd1
DM		 2804 if ((params->key &&
2805 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2806 params->key_len, params->key)) ||
2807 (params->seq &&
2808 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2809 params->seq_len, params->seq)) ||
2810 (params->cipher &&
2811 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2812 params->cipher)))
2813 goto nla_put_failure;
41ade00f 2814
b9454e83
JB		 2815 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2816 if (!key)
2817 goto nla_put_failure;
2818
9360ffd1
DM		 2819 if ((params->key &&
2820 nla_put(cookie->msg, NL80211_KEY_DATA,
2821 params->key_len, params->key)) ||
2822 (params->seq &&
2823 nla_put(cookie->msg, NL80211_KEY_SEQ,
2824 params->seq_len, params->seq)) ||
2825 (params->cipher &&
2826 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2827 params->cipher)))
2828 goto nla_put_failure;
b9454e83 2829
9360ffd1
DM		 2830 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2831 goto nla_put_failure;
b9454e83
JB		 2832
2833 nla_nest_end(cookie->msg, key);
2834
41ade00f
JB		 2835 return;
2836 nla_put_failure:
2837 cookie->error = 1;
2838}
2839
2840static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2841{
4c476991 2842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2843 int err;
4c476991 2844 struct net_device *dev = info->user_ptr[1];
41ade00f 2845 u8 key_idx = 0;
e31b8213
JB		 2846 const u8 *mac_addr = NULL;
2847 bool pairwise;
41ade00f
JB		 2848 struct get_key_cookie cookie = {
2849 .error = 0,
2850 };
2851 void *hdr;
2852 struct sk_buff *msg;
2853
2854 if (info->attrs[NL80211_ATTR_KEY_IDX])
2855 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2856
3cfcf6ac 2857 if (key_idx > 5)
41ade00f
JB		 2858 return -EINVAL;
2859
2860 if (info->attrs[NL80211_ATTR_MAC])
2861 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2862
e31b8213
JB		 2863 pairwise = !!mac_addr;
2864 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2865 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2866 if (kt >= NUM_NL80211_KEYTYPES)
2867 return -EINVAL;
2868 if (kt != NL80211_KEYTYPE_GROUP &&
2869 kt != NL80211_KEYTYPE_PAIRWISE)
2870 return -EINVAL;
2871 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2872 }
2873
4c476991
JB		 2874 if (!rdev->ops->get_key)
2875 return -EOPNOTSUPP;
41ade00f 2876
0fa7b391
JB		 2877 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2878 return -ENOENT;
2879
fd2120ca 2880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2881 if (!msg)
2882 return -ENOMEM;
41ade00f 2883
15e47304 2884 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2885 NL80211_CMD_NEW_KEY);
cb35fba3 2886 if (!hdr)
9fe271af 2887 goto nla_put_failure;
41ade00f
JB		 2888
2889 cookie.msg = msg;
b9454e83 2890 cookie.idx = key_idx;
41ade00f 2891
9360ffd1
DM		 2892 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2893 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2894 goto nla_put_failure;
2895 if (mac_addr &&
2896 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2897 goto nla_put_failure;
41ade00f 2898
e35e4d28
HG		 2899 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2900 get_key_callback);
41ade00f
JB		 2901
2902 if (err)
6c95e2a2 2903 goto free_msg;
41ade00f
JB		 2904
2905 if (cookie.error)
2906 goto nla_put_failure;
2907
2908 genlmsg_end(msg, hdr);
4c476991 2909 return genlmsg_reply(msg, info);
41ade00f
JB		 2910
2911 nla_put_failure:
2912 err = -ENOBUFS;
6c95e2a2 2913 free_msg:
41ade00f 2914 nlmsg_free(msg);
41ade00f
JB		 2915 return err;
2916}
2917
2918static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2919{
4c476991 2920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2921 struct key_parse key;
41ade00f 2922 int err;
4c476991 2923 struct net_device *dev = info->user_ptr[1];
41ade00f 2924
b9454e83
JB		 2925 err = nl80211_parse_key(info, &key);
2926 if (err)
2927 return err;
41ade00f 2928
b9454e83 2929 if (key.idx < 0)
41ade00f
JB		 2930 return -EINVAL;
2931
b9454e83
JB		 2932 /* only support setting default key */
2933 if (!key.def && !key.defmgmt)
41ade00f
JB		 2934 return -EINVAL;
2935
dbd2fd65 2936 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2937
dbd2fd65
JB		 2938 if (key.def) {
2939 if (!rdev->ops->set_default_key) {
2940 err = -EOPNOTSUPP;
2941 goto out;
2942 }
41ade00f 2943
dbd2fd65
JB		 2944 err = nl80211_key_allowed(dev->ieee80211_ptr);
2945 if (err)
2946 goto out;
2947
e35e4d28 2948 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2949 key.def_uni, key.def_multi);
2950
2951 if (err)
2952 goto out;
fffd0934 2953
3d23e349 2954#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2955 dev->ieee80211_ptr->wext.default_key = key.idx;
2956#endif
2957 } else {
2958 if (key.def_uni || !key.def_multi) {
2959 err = -EINVAL;
2960 goto out;
2961 }
2962
2963 if (!rdev->ops->set_default_mgmt_key) {
2964 err = -EOPNOTSUPP;
2965 goto out;
2966 }
2967
2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2969 if (err)
2970 goto out;
2971
e35e4d28 2972 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2973 if (err)
2974 goto out;
2975
2976#ifdef CONFIG_CFG80211_WEXT
2977 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2978#endif
dbd2fd65
JB		 2979 }
2980
2981 out:
fffd0934 2982 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2983
41ade00f
JB		 2984 return err;
2985}
2986
2987static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2988{
4c476991 2989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2990 int err;
4c476991 2991 struct net_device *dev = info->user_ptr[1];
b9454e83 2992 struct key_parse key;
e31b8213 2993 const u8 *mac_addr = NULL;
41ade00f 2994
b9454e83
JB		 2995 err = nl80211_parse_key(info, &key);
2996 if (err)
2997 return err;
41ade00f 2998
b9454e83 2999 if (!key.p.key)
41ade00f
JB		 3000 return -EINVAL;
3001
41ade00f
JB		 3002 if (info->attrs[NL80211_ATTR_MAC])
3003 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3004
e31b8213
JB		 3005 if (key.type == -1) {
3006 if (mac_addr)
3007 key.type = NL80211_KEYTYPE_PAIRWISE;
3008 else
3009 key.type = NL80211_KEYTYPE_GROUP;
3010 }
3011
3012 /* for now */
3013 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3014 key.type != NL80211_KEYTYPE_GROUP)
3015 return -EINVAL;
3016
4c476991
JB		 3017 if (!rdev->ops->add_key)
3018 return -EOPNOTSUPP;
25e47c18 3019
e31b8213
JB		 3020 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3021 key.type == NL80211_KEYTYPE_PAIRWISE,
3022 mac_addr))
4c476991 3023 return -EINVAL;
41ade00f 3024
fffd0934
JB		 3025 wdev_lock(dev->ieee80211_ptr);
3026 err = nl80211_key_allowed(dev->ieee80211_ptr);
3027 if (!err)
e35e4d28
HG		 3028 err = rdev_add_key(rdev, dev, key.idx,
3029 key.type == NL80211_KEYTYPE_PAIRWISE,
3030 mac_addr, &key.p);
fffd0934 3031 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3032
41ade00f
JB		 3033 return err;
3034}
3035
3036static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3037{
4c476991 3038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3039 int err;
4c476991 3040 struct net_device *dev = info->user_ptr[1];
41ade00f 3041 u8 *mac_addr = NULL;
b9454e83 3042 struct key_parse key;
41ade00f 3043
b9454e83
JB		 3044 err = nl80211_parse_key(info, &key);
3045 if (err)
3046 return err;
41ade00f
JB		 3047
3048 if (info->attrs[NL80211_ATTR_MAC])
3049 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3050
e31b8213
JB		 3051 if (key.type == -1) {
3052 if (mac_addr)
3053 key.type = NL80211_KEYTYPE_PAIRWISE;
3054 else
3055 key.type = NL80211_KEYTYPE_GROUP;
3056 }
3057
3058 /* for now */
3059 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3060 key.type != NL80211_KEYTYPE_GROUP)
3061 return -EINVAL;
3062
4c476991
JB		 3063 if (!rdev->ops->del_key)
3064 return -EOPNOTSUPP;
41ade00f 3065
fffd0934
JB		 3066 wdev_lock(dev->ieee80211_ptr);
3067 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3068
0fa7b391 3069 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3070 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3071 err = -ENOENT;
3072
fffd0934 3073 if (!err)
e35e4d28
HG		 3074 err = rdev_del_key(rdev, dev, key.idx,
3075 key.type == NL80211_KEYTYPE_PAIRWISE,
3076 mac_addr);
41ade00f 3077
3d23e349 3078#ifdef CONFIG_CFG80211_WEXT
08645126 3079 if (!err) {
b9454e83 3080 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3081 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3082 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3083 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3084 }
3085#endif
fffd0934 3086 wdev_unlock(dev->ieee80211_ptr);
08645126 3087
41ade00f
JB		 3088 return err;
3089}
3090
77765eaf
VT		 3091/* This function returns an error or the number of nested attributes */
3092static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3093{
3094 struct nlattr *attr;
3095 int n_entries = 0, tmp;
3096
3097 nla_for_each_nested(attr, nl_attr, tmp) {
3098 if (nla_len(attr) != ETH_ALEN)
3099 return -EINVAL;
3100
3101 n_entries++;
3102 }
3103
3104 return n_entries;
3105}
3106
3107/*
3108 * This function parses ACL information and allocates memory for ACL data.
3109 * On successful return, the calling function is responsible to free the
3110 * ACL buffer returned by this function.
3111 */
3112static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3113 struct genl_info *info)
3114{
3115 enum nl80211_acl_policy acl_policy;
3116 struct nlattr *attr;
3117 struct cfg80211_acl_data *acl;
3118 int i = 0, n_entries, tmp;
3119
3120 if (!wiphy->max_acl_mac_addrs)
3121 return ERR_PTR(-EOPNOTSUPP);
3122
3123 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3124 return ERR_PTR(-EINVAL);
3125
3126 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3127 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3128 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3129 return ERR_PTR(-EINVAL);
3130
3131 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3132 return ERR_PTR(-EINVAL);
3133
3134 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3135 if (n_entries < 0)
3136 return ERR_PTR(n_entries);
3137
3138 if (n_entries > wiphy->max_acl_mac_addrs)
3139 return ERR_PTR(-ENOTSUPP);
3140
3141 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3142 GFP_KERNEL);
3143 if (!acl)
3144 return ERR_PTR(-ENOMEM);
3145
3146 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3147 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3148 i++;
3149 }
3150
3151 acl->n_acl_entries = n_entries;
3152 acl->acl_policy = acl_policy;
3153
3154 return acl;
3155}
3156
3157static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3158{
3159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3160 struct net_device *dev = info->user_ptr[1];
3161 struct cfg80211_acl_data *acl;
3162 int err;
3163
3164 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3165 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3166 return -EOPNOTSUPP;
3167
3168 if (!dev->ieee80211_ptr->beacon_interval)
3169 return -EINVAL;
3170
3171 acl = parse_acl_data(&rdev->wiphy, info);
3172 if (IS_ERR(acl))
3173 return PTR_ERR(acl);
3174
3175 err = rdev_set_mac_acl(rdev, dev, acl);
3176
3177 kfree(acl);
3178
3179 return err;
3180}
3181
a1193be8 3182static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3183 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3184{
8860020e 3185 bool haveinfo = false;
ed1b6cc7 3186
a1193be8
SW		 3187 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3188 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3189 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3190 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3191 return -EINVAL;
3192
8860020e 3193 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3194
a1193be8
SW		 3195 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3196 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3197 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3198 if (!bcn->head_len)
3199 return -EINVAL;
3200 haveinfo = true;
ed1b6cc7
JB		 3201 }
3202
a1193be8
SW		 3203 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3204 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3205 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3206 haveinfo = true;
ed1b6cc7
JB		 3207 }
3208
4c476991
JB		 3209 if (!haveinfo)
3210 return -EINVAL;
3b85875a 3211
a1193be8
SW		 3212 if (attrs[NL80211_ATTR_IE]) {
3213 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3214 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3215 }
3216
a1193be8 3217 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3218 bcn->proberesp_ies =
a1193be8 3219 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3220 bcn->proberesp_ies_len =
a1193be8 3221 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3222 }
3223
a1193be8 3224 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3225 bcn->assocresp_ies =
a1193be8 3226 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3227 bcn->assocresp_ies_len =
a1193be8 3228 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3229 }
3230
a1193be8
SW		 3231 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3232 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3233 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3234 }
3235
8860020e
JB		 3236 return 0;
3237}
3238
46c1dd0c
FF		 3239static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3240 struct cfg80211_ap_settings *params)
3241{
3242 struct wireless_dev *wdev;
3243 bool ret = false;
3244
89a54e48 3245 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3246 if (wdev->iftype != NL80211_IFTYPE_AP &&
3247 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3248 continue;
3249
683b6d3b 3250 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3251 continue;
3252
683b6d3b 3253 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3254 ret = true;
3255 break;
3256 }
3257
46c1dd0c
FF		 3258 return ret;
3259}
3260
e39e5b5e
JM		 3261static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3262 enum nl80211_auth_type auth_type,
3263 enum nl80211_commands cmd)
3264{
3265 if (auth_type > NL80211_AUTHTYPE_MAX)
3266 return false;
3267
3268 switch (cmd) {
3269 case NL80211_CMD_AUTHENTICATE:
3270 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3271 auth_type == NL80211_AUTHTYPE_SAE)
3272 return false;
3273 return true;
3274 case NL80211_CMD_CONNECT:
3275 case NL80211_CMD_START_AP:
3276 /* SAE not supported yet */
3277 if (auth_type == NL80211_AUTHTYPE_SAE)
3278 return false;
3279 return true;
3280 default:
3281 return false;
3282 }
3283}
3284
8860020e
JB		 3285static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3286{
3287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3288 struct net_device *dev = info->user_ptr[1];
3289 struct wireless_dev *wdev = dev->ieee80211_ptr;
3290 struct cfg80211_ap_settings params;
3291 int err;
3292
3293 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3294 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3295 return -EOPNOTSUPP;
3296
3297 if (!rdev->ops->start_ap)
3298 return -EOPNOTSUPP;
3299
3300 if (wdev->beacon_interval)
3301 return -EALREADY;
3302
3303 memset(&params, 0, sizeof(params));
3304
3305 /* these are required for START_AP */
3306 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3307 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3308 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3309 return -EINVAL;
3310
a1193be8 3311 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3312 if (err)
3313 return err;
3314
3315 params.beacon_interval =
3316 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3317 params.dtim_period =
3318 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3319
3320 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3321 if (err)
3322 return err;
3323
3324 /*
3325 * In theory, some of these attributes should be required here
3326 * but since they were not used when the command was originally
3327 * added, keep them optional for old user space programs to let
3328 * them continue to work with drivers that do not need the
3329 * additional information -- drivers must check!
3330 */
3331 if (info->attrs[NL80211_ATTR_SSID]) {
3332 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3333 params.ssid_len =
3334 nla_len(info->attrs[NL80211_ATTR_SSID]);
3335 if (params.ssid_len == 0 ||
3336 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3337 return -EINVAL;
3338 }
3339
3340 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3341 params.hidden_ssid = nla_get_u32(
3342 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3343 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3344 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3345 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3346 return -EINVAL;
3347 }
3348
3349 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3350
3351 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3352 params.auth_type = nla_get_u32(
3353 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3354 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3355 NL80211_CMD_START_AP))
8860020e
JB		 3356 return -EINVAL;
3357 } else
3358 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3359
3360 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3361 NL80211_MAX_NR_CIPHER_SUITES);
3362 if (err)
3363 return err;
3364
1b658f11
VT		 3365 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3366 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3367 return -EOPNOTSUPP;
3368 params.inactivity_timeout = nla_get_u16(
3369 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3370 }
3371
53cabad7
JB		 3372 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3373 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3374 return -EINVAL;
3375 params.p2p_ctwindow =
3376 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3377 if (params.p2p_ctwindow > 127)
3378 return -EINVAL;
3379 if (params.p2p_ctwindow != 0 &&
3380 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3381 return -EINVAL;
3382 }
3383
3384 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3385 u8 tmp;
3386
3387 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3388 return -EINVAL;
3389 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3390 if (tmp > 1)
3391 return -EINVAL;
3392 params.p2p_opp_ps = tmp;
3393 if (params.p2p_opp_ps != 0 &&
3394 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3395 return -EINVAL;
3396 }
3397
aa430da4 3398 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3399 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3400 if (err)
3401 return err;
3402 } else if (wdev->preset_chandef.chan) {
3403 params.chandef = wdev->preset_chandef;
46c1dd0c 3404 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3405 return -EINVAL;
3406
174e0cd2
IP		 3407 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3408 wdev->iftype))
aa430da4
JB		 3409 return -EINVAL;
3410
77765eaf
VT		 3411 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3412 params.acl = parse_acl_data(&rdev->wiphy, info);
3413 if (IS_ERR(params.acl))
3414 return PTR_ERR(params.acl);
3415 }
3416
18998c38
EP		 3417 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3418 params.smps_mode =
3419 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3420 switch (params.smps_mode) {
3421 case NL80211_SMPS_OFF:
3422 break;
3423 case NL80211_SMPS_STATIC:
3424 if (!(rdev->wiphy.features &
3425 NL80211_FEATURE_STATIC_SMPS))
3426 return -EINVAL;
3427 break;
3428 case NL80211_SMPS_DYNAMIC:
3429 if (!(rdev->wiphy.features &
3430 NL80211_FEATURE_DYNAMIC_SMPS))
3431 return -EINVAL;
3432 break;
3433 default:
3434 return -EINVAL;
3435 }
3436 } else {
3437 params.smps_mode = NL80211_SMPS_OFF;
3438 }
3439
c56589ed 3440 wdev_lock(wdev);
e35e4d28 3441 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3442 if (!err) {
683b6d3b 3443 wdev->preset_chandef = params.chandef;
8860020e 3444 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3445 wdev->chandef = params.chandef;
06e191e2
AQ		 3446 wdev->ssid_len = params.ssid_len;
3447 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3448 }
c56589ed 3449 wdev_unlock(wdev);
77765eaf
VT		 3450
3451 kfree(params.acl);
3452
56d1893d 3453 return err;
ed1b6cc7
JB		 3454}
3455
8860020e
JB		 3456static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3457{
3458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3459 struct net_device *dev = info->user_ptr[1];
3460 struct wireless_dev *wdev = dev->ieee80211_ptr;
3461 struct cfg80211_beacon_data params;
3462 int err;
3463
3464 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3466 return -EOPNOTSUPP;
3467
3468 if (!rdev->ops->change_beacon)
3469 return -EOPNOTSUPP;
3470
3471 if (!wdev->beacon_interval)
3472 return -EINVAL;
3473
a1193be8 3474 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3475 if (err)
3476 return err;
3477
c56589ed
SW		 3478 wdev_lock(wdev);
3479 err = rdev_change_beacon(rdev, dev, &params);
3480 wdev_unlock(wdev);
3481
3482 return err;
8860020e
JB		 3483}
3484
3485static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3486{
4c476991
JB		 3487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3488 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3489
7c8d5e03 3490 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3491}
3492
5727ef1b
JB		 3493static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3494 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3495 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3496 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3497 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3498 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3499 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3500};
3501
eccb8e8f 3502static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3503 enum nl80211_iftype iftype,
eccb8e8f 3504 struct station_parameters *params)
5727ef1b
JB		 3505{
3506 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3507 struct nlattr *nla;
5727ef1b
JB		 3508 int flag;
3509
eccb8e8f
JB		 3510 /*
3511 * Try parsing the new attribute first so userspace
3512 * can specify both for older kernels.
3513 */
3514 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3515 if (nla) {
3516 struct nl80211_sta_flag_update *sta_flags;
3517
3518 sta_flags = nla_data(nla);
3519 params->sta_flags_mask = sta_flags->mask;
3520 params->sta_flags_set = sta_flags->set;
77ee7c89 3521 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3522 if ((params->sta_flags_mask |
3523 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3524 return -EINVAL;
3525 return 0;
3526 }
3527
3528 /* if present, parse the old attribute */
5727ef1b 3529
eccb8e8f 3530 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3531 if (!nla)
3532 return 0;
3533
3534 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3535 nla, sta_flags_policy))
3536 return -EINVAL;
3537
bdd3ae3d
JB		 3538 /*
3539 * Only allow certain flags for interface types so that
3540 * other attributes are silently ignored. Remember that
3541 * this is backward compatibility code with old userspace
3542 * and shouldn't be hit in other cases anyway.
3543 */
3544 switch (iftype) {
3545 case NL80211_IFTYPE_AP:
3546 case NL80211_IFTYPE_AP_VLAN:
3547 case NL80211_IFTYPE_P2P_GO:
3548 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3549 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3550 BIT(NL80211_STA_FLAG_WME) |
3551 BIT(NL80211_STA_FLAG_MFP);
3552 break;
3553 case NL80211_IFTYPE_P2P_CLIENT:
3554 case NL80211_IFTYPE_STATION:
3555 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3556 BIT(NL80211_STA_FLAG_TDLS_PEER);
3557 break;
3558 case NL80211_IFTYPE_MESH_POINT:
3559 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3560 BIT(NL80211_STA_FLAG_MFP) |
3561 BIT(NL80211_STA_FLAG_AUTHORIZED);
3562 default:
3563 return -EINVAL;
3564 }
5727ef1b 3565
3383b5a6
JB		 3566 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3567 if (flags[flag]) {
eccb8e8f 3568 params->sta_flags_set |= (1<<flag);
5727ef1b 3569
3383b5a6
JB		 3570 /* no longer support new API additions in old API */
3571 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3572 return -EINVAL;
3573 }
3574 }
3575
5727ef1b
JB		 3576 return 0;
3577}
3578
c8dcfd8a
FF		 3579static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3580 int attr)
3581{
3582 struct nlattr *rate;
8eb41c8d
VK		 3583 u32 bitrate;
3584 u16 bitrate_compat;
b51f3bee 3585 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3586
3587 rate = nla_nest_start(msg, attr);
3588 if (!rate)
db9c64cf 3589 return false;
c8dcfd8a
FF		 3590
3591 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3592 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3593 /* report 16-bit bitrate only if we can */
3594 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3595 if (bitrate > 0 &&
3596 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3597 return false;
3598 if (bitrate_compat > 0 &&
3599 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3600 return false;
3601
b51f3bee
JB		 3602 switch (info->bw) {
3603 case RATE_INFO_BW_5:
3604 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3605 break;
3606 case RATE_INFO_BW_10:
3607 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3608 break;
3609 default:
3610 WARN_ON(1);
3611 /* fall through */
3612 case RATE_INFO_BW_20:
3613 rate_flg = 0;
3614 break;
3615 case RATE_INFO_BW_40:
3616 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3617 break;
3618 case RATE_INFO_BW_80:
3619 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3620 break;
3621 case RATE_INFO_BW_160:
3622 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3623 break;
3624 }
3625
3626 if (rate_flg && nla_put_flag(msg, rate_flg))
3627 return false;
3628
db9c64cf
JB		 3629 if (info->flags & RATE_INFO_FLAGS_MCS) {
3630 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3631 return false;
db9c64cf
JB		 3632 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3633 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3634 return false;
3635 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3636 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3637 return false;
3638 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3639 return false;
db9c64cf
JB		 3640 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3641 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3642 return false;
3643 }
c8dcfd8a
FF		 3644
3645 nla_nest_end(msg, rate);
3646 return true;
c8dcfd8a
FF		 3647}
3648
119363c7
FF		 3649static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3650 int id)
3651{
3652 void *attr;
3653 int i = 0;
3654
3655 if (!mask)
3656 return true;
3657
3658 attr = nla_nest_start(msg, id);
3659 if (!attr)
3660 return false;
3661
3662 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3663 if (!(mask & BIT(i)))
3664 continue;
3665
3666 if (nla_put_u8(msg, i, signal[i]))
3667 return false;
3668 }
3669
3670 nla_nest_end(msg, attr);
3671
3672 return true;
3673}
3674
cf5ead82
JB		 3675static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3676 u32 seq, int flags,
66266b3a
JL		 3677 struct cfg80211_registered_device *rdev,
3678 struct net_device *dev,
98b62183 3679 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3680{
3681 void *hdr;
f4263c98 3682 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3683
cf5ead82 3684 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3685 if (!hdr)
3686 return -1;
3687
9360ffd1
DM		 3688 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3689 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3690 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3691 goto nla_put_failure;
f5ea9120 3692
2ec600d6
LCC		 3693 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3694 if (!sinfoattr)
fd5b74dc 3695 goto nla_put_failure;
319090bf
JB		 3696
3697#define PUT_SINFO(attr, memb, type) do { \
3698 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3699 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3700 sinfo->memb)) \
3701 goto nla_put_failure; \
3702 } while (0)
3703
3704 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3705 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3706
3707 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3708 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3709 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3710 (u32)sinfo->rx_bytes))
9360ffd1 3711 goto nla_put_failure;
319090bf
JB		 3712
3713 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3714 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3715 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3716 (u32)sinfo->tx_bytes))
3717 goto nla_put_failure;
319090bf
JB		 3718
3719 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3720 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3721 PUT_SINFO(LLID, llid, u16);
3722 PUT_SINFO(PLID, plid, u16);
3723 PUT_SINFO(PLINK_STATE, plink_state, u8);
3724
66266b3a
JL		 3725 switch (rdev->wiphy.signal_type) {
3726 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3727 PUT_SINFO(SIGNAL, signal, u8);
3728 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3729 break;
3730 default:
3731 break;
3732 }
319090bf 3733 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3734 if (!nl80211_put_signal(msg, sinfo->chains,
3735 sinfo->chain_signal,
3736 NL80211_STA_INFO_CHAIN_SIGNAL))
3737 goto nla_put_failure;
3738 }
319090bf 3739 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3740 if (!nl80211_put_signal(msg, sinfo->chains,
3741 sinfo->chain_signal_avg,
3742 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3743 goto nla_put_failure;
3744 }
319090bf 3745 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3746 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3747 NL80211_STA_INFO_TX_BITRATE))
3748 goto nla_put_failure;
3749 }
319090bf 3750 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3751 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3752 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3753 goto nla_put_failure;
420e7fab 3754 }
319090bf
JB		 3755
3756 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3757 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3758 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3759 PUT_SINFO(TX_FAILED, tx_failed, u32);
3760 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3761 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3762 PUT_SINFO(LOCAL_PM, local_pm, u32);
3763 PUT_SINFO(PEER_PM, peer_pm, u32);
3764 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3765
3766 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3767 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3768 if (!bss_param)
3769 goto nla_put_failure;
3770
9360ffd1
DM		 3771 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3772 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3773 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3774 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3775 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3776 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3777 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3778 sinfo->bss_param.dtim_period) ||
3779 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3780 sinfo->bss_param.beacon_interval))
3781 goto nla_put_failure;
f4263c98
PS		 3782
3783 nla_nest_end(msg, bss_param);
3784 }
319090bf 3785 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3786 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3787 sizeof(struct nl80211_sta_flag_update),
3788 &sinfo->sta_flags))
3789 goto nla_put_failure;
319090bf
JB		 3790
3791 PUT_SINFO(T_OFFSET, t_offset, u64);
3792 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3793 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3794 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3795
3796#undef PUT_SINFO
6de39808
JB		 3797
3798 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3799 struct nlattr *tidsattr;
3800 int tid;
3801
3802 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3803 if (!tidsattr)
3804 goto nla_put_failure;
3805
3806 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3807 struct cfg80211_tid_stats *tidstats;
3808 struct nlattr *tidattr;
3809
3810 tidstats = &sinfo->pertid[tid];
3811
3812 if (!tidstats->filled)
3813 continue;
3814
3815 tidattr = nla_nest_start(msg, tid + 1);
3816 if (!tidattr)
3817 goto nla_put_failure;
3818
3819#define PUT_TIDVAL(attr, memb, type) do { \
3820 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3821 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3822 tidstats->memb)) \
3823 goto nla_put_failure; \
3824 } while (0)
3825
3826 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3827 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3828 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3829 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3830
3831#undef PUT_TIDVAL
3832 nla_nest_end(msg, tidattr);
3833 }
3834
3835 nla_nest_end(msg, tidsattr);
3836 }
3837
2ec600d6 3838 nla_nest_end(msg, sinfoattr);
fd5b74dc 3839
319090bf 3840 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3841 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3842 sinfo->assoc_req_ies))
3843 goto nla_put_failure;
50d3dfb7 3844
053c095a
JB		 3845 genlmsg_end(msg, hdr);
3846 return 0;
fd5b74dc
JB		 3847
3848 nla_put_failure:
bc3ed28c
TG		 3849 genlmsg_cancel(msg, hdr);
3850 return -EMSGSIZE;
fd5b74dc
JB		 3851}
3852
2ec600d6 3853static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3854 struct netlink_callback *cb)
2ec600d6 3855{
2ec600d6 3856 struct station_info sinfo;
1b8ec87a 3857 struct cfg80211_registered_device *rdev;
97990a06 3858 struct wireless_dev *wdev;
2ec600d6 3859 u8 mac_addr[ETH_ALEN];
97990a06 3860 int sta_idx = cb->args[2];
2ec600d6 3861 int err;
2ec600d6 3862
1b8ec87a 3863 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3864 if (err)
3865 return err;
bba95fef 3866
97990a06
JB		 3867 if (!wdev->netdev) {
3868 err = -EINVAL;
3869 goto out_err;
3870 }
3871
1b8ec87a 3872 if (!rdev->ops->dump_station) {
eec60b03 3873 err = -EOPNOTSUPP;
bba95fef
JB		 3874 goto out_err;
3875 }
3876
bba95fef 3877 while (1) {
f612cedf 3878 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3879 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3880 mac_addr, &sinfo);
bba95fef
JB		 3881 if (err == -ENOENT)
3882 break;
3883 if (err)
3b85875a 3884 goto out_err;
bba95fef 3885
cf5ead82 3886 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3887 NETLINK_CB(cb->skb).portid,
bba95fef 3888 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3889 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3890 &sinfo) < 0)
3891 goto out;
3892
3893 sta_idx++;
3894 }
3895
3896
3897 out:
97990a06 3898 cb->args[2] = sta_idx;
bba95fef 3899 err = skb->len;
bba95fef 3900 out_err:
1b8ec87a 3901 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3902
3903 return err;
2ec600d6 3904}
fd5b74dc 3905
5727ef1b
JB		 3906static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3907{
4c476991
JB		 3908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3909 struct net_device *dev = info->user_ptr[1];
2ec600d6 3910 struct station_info sinfo;
fd5b74dc
JB		 3911 struct sk_buff *msg;
3912 u8 *mac_addr = NULL;
4c476991 3913 int err;
fd5b74dc 3914
2ec600d6 3915 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3916
3917 if (!info->attrs[NL80211_ATTR_MAC])
3918 return -EINVAL;
3919
3920 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3921
4c476991
JB		 3922 if (!rdev->ops->get_station)
3923 return -EOPNOTSUPP;
3b85875a 3924
e35e4d28 3925 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3926 if (err)
4c476991 3927 return err;
2ec600d6 3928
fd2120ca 3929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3930 if (!msg)
4c476991 3931 return -ENOMEM;
fd5b74dc 3932
cf5ead82
JB		 3933 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3934 info->snd_portid, info->snd_seq, 0,
66266b3a 3935 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3936 nlmsg_free(msg);
3937 return -ENOBUFS;
3938 }
3b85875a 3939
4c476991 3940 return genlmsg_reply(msg, info);
5727ef1b
JB		 3941}
3942
77ee7c89
JB		 3943int cfg80211_check_station_change(struct wiphy *wiphy,
3944 struct station_parameters *params,
3945 enum cfg80211_station_type statype)
3946{
3947 if (params->listen_interval != -1)
3948 return -EINVAL;
c72e1140
AN		 3949 if (params->aid &&
3950 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3951 return -EINVAL;
3952
3953 /* When you run into this, adjust the code below for the new flag */
3954 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3955
3956 switch (statype) {
eef941e6
TP		 3957 case CFG80211_STA_MESH_PEER_KERNEL:
3958 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3959 /*
3960 * No ignoring the TDLS flag here -- the userspace mesh
3961 * code doesn't have the bug of including TDLS in the
3962 * mask everywhere.
3963 */
3964 if (params->sta_flags_mask &
3965 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3966 BIT(NL80211_STA_FLAG_MFP) |
3967 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3968 return -EINVAL;
3969 break;
3970 case CFG80211_STA_TDLS_PEER_SETUP:
3971 case CFG80211_STA_TDLS_PEER_ACTIVE:
3972 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3973 return -EINVAL;
3974 /* ignore since it can't change */
3975 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3976 break;
3977 default:
3978 /* disallow mesh-specific things */
3979 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3980 return -EINVAL;
3981 if (params->local_pm)
3982 return -EINVAL;
3983 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3984 return -EINVAL;
3985 }
3986
3987 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3988 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3989 /* TDLS can't be set, ... */
3990 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3991 return -EINVAL;
3992 /*
3993 * ... but don't bother the driver with it. This works around
3994 * a hostapd/wpa_supplicant issue -- it always includes the
3995 * TLDS_PEER flag in the mask even for AP mode.
3996 */
3997 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3998 }
3999
4000 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
4001 /* reject other things that can't change */
4002 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4003 return -EINVAL;
4004 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4005 return -EINVAL;
4006 if (params->supported_rates)
4007 return -EINVAL;
4008 if (params->ext_capab || params->ht_capa || params->vht_capa)
4009 return -EINVAL;
4010 }
4011
4012 if (statype != CFG80211_STA_AP_CLIENT) {
4013 if (params->vlan)
4014 return -EINVAL;
4015 }
4016
4017 switch (statype) {
4018 case CFG80211_STA_AP_MLME_CLIENT:
4019 /* Use this only for authorizing/unauthorizing a station */
4020 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4021 return -EOPNOTSUPP;
4022 break;
4023 case CFG80211_STA_AP_CLIENT:
4024 /* accept only the listed bits */
4025 if (params->sta_flags_mask &
4026 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4027 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4028 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4029 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4030 BIT(NL80211_STA_FLAG_WME) |
4031 BIT(NL80211_STA_FLAG_MFP)))
4032 return -EINVAL;
4033
4034 /* but authenticated/associated only if driver handles it */
4035 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4036 params->sta_flags_mask &
4037 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4038 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4039 return -EINVAL;
4040 break;
4041 case CFG80211_STA_IBSS:
4042 case CFG80211_STA_AP_STA:
4043 /* reject any changes other than AUTHORIZED */
4044 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4045 return -EINVAL;
4046 break;
4047 case CFG80211_STA_TDLS_PEER_SETUP:
4048 /* reject any changes other than AUTHORIZED or WME */
4049 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4050 BIT(NL80211_STA_FLAG_WME)))
4051 return -EINVAL;
4052 /* force (at least) rates when authorizing */
4053 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4054 !params->supported_rates)
4055 return -EINVAL;
4056 break;
4057 case CFG80211_STA_TDLS_PEER_ACTIVE:
4058 /* reject any changes */
4059 return -EINVAL;
eef941e6 4060 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4061 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4062 return -EINVAL;
4063 break;
eef941e6 4064 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4065 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4066 return -EINVAL;
4067 break;
4068 }
4069
4070 return 0;
4071}
4072EXPORT_SYMBOL(cfg80211_check_station_change);
4073
5727ef1b 4074/*
c258d2de 4075 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4076 */
80b99899
JB		 4077static struct net_device *get_vlan(struct genl_info *info,
4078 struct cfg80211_registered_device *rdev)
5727ef1b 4079{
463d0183 4080 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4081 struct net_device *v;
4082 int ret;
4083
4084 if (!vlanattr)
4085 return NULL;
4086
4087 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4088 if (!v)
4089 return ERR_PTR(-ENODEV);
4090
4091 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4092 ret = -EINVAL;
4093 goto error;
5727ef1b 4094 }
80b99899 4095
77ee7c89
JB		 4096 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4097 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4098 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4099 ret = -EINVAL;
4100 goto error;
4101 }
4102
80b99899
JB		 4103 if (!netif_running(v)) {
4104 ret = -ENETDOWN;
4105 goto error;
4106 }
4107
4108 return v;
4109 error:
4110 dev_put(v);
4111 return ERR_PTR(ret);
5727ef1b
JB		 4112}
4113
94e860f1
JB		 4114static const struct nla_policy
4115nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4116 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4117 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4118};
4119
ff276691
JB		 4120static int nl80211_parse_sta_wme(struct genl_info *info,
4121 struct station_parameters *params)
df881293 4122{
df881293
JM		 4123 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4124 struct nlattr *nla;
4125 int err;
4126
df881293
JM		 4127 /* parse WME attributes if present */
4128 if (!info->attrs[NL80211_ATTR_STA_WME])
4129 return 0;
4130
4131 nla = info->attrs[NL80211_ATTR_STA_WME];
4132 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4133 nl80211_sta_wme_policy);
4134 if (err)
4135 return err;
4136
4137 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4138 params->uapsd_queues = nla_get_u8(
4139 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4140 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4141 return -EINVAL;
4142
4143 if (tb[NL80211_STA_WME_MAX_SP])
4144 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4145
4146 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4147 return -EINVAL;
4148
4149 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4150
4151 return 0;
4152}
4153
c01fc9ad
SD		 4154static int nl80211_parse_sta_channel_info(struct genl_info *info,
4155 struct station_parameters *params)
4156{
4157 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4158 params->supported_channels =
4159 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4160 params->supported_channels_len =
4161 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4162 /*
4163 * Need to include at least one (first channel, number of
4164 * channels) tuple for each subband, and must have proper
4165 * tuples for the rest of the data as well.
4166 */
4167 if (params->supported_channels_len < 2)
4168 return -EINVAL;
4169 if (params->supported_channels_len % 2)
4170 return -EINVAL;
4171 }
4172
4173 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4174 params->supported_oper_classes =
4175 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4176 params->supported_oper_classes_len =
4177 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4178 /*
4179 * The value of the Length field of the Supported Operating
4180 * Classes element is between 2 and 253.
4181 */
4182 if (params->supported_oper_classes_len < 2 ||
4183 params->supported_oper_classes_len > 253)
4184 return -EINVAL;
4185 }
4186 return 0;
4187}
4188
ff276691
JB		 4189static int nl80211_set_station_tdls(struct genl_info *info,
4190 struct station_parameters *params)
4191{
c01fc9ad 4192 int err;
ff276691 4193 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4194 if (info->attrs[NL80211_ATTR_PEER_AID])
4195 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4196 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4197 params->ht_capa =
4198 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4199 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4200 params->vht_capa =
4201 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4202
c01fc9ad
SD		 4203 err = nl80211_parse_sta_channel_info(info, params);
4204 if (err)
4205 return err;
4206
ff276691
JB		 4207 return nl80211_parse_sta_wme(info, params);
4208}
4209
5727ef1b
JB		 4210static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4211{
4c476991 4212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4213 struct net_device *dev = info->user_ptr[1];
5727ef1b 4214 struct station_parameters params;
77ee7c89
JB		 4215 u8 *mac_addr;
4216 int err;
5727ef1b
JB		 4217
4218 memset(&params, 0, sizeof(params));
4219
4220 params.listen_interval = -1;
4221
77ee7c89
JB		 4222 if (!rdev->ops->change_station)
4223 return -EOPNOTSUPP;
4224
5727ef1b
JB		 4225 if (info->attrs[NL80211_ATTR_STA_AID])
4226 return -EINVAL;
4227
4228 if (!info->attrs[NL80211_ATTR_MAC])
4229 return -EINVAL;
4230
4231 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4232
4233 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4234 params.supported_rates =
4235 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4236 params.supported_rates_len =
4237 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4238 }
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
df881293 4253 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4254 return -EINVAL;
36aedc90 4255
bdd3ae3d 4256 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4257 return -EINVAL;
4258
f8bacc21 4259 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4260 params.plink_action =
f8bacc21
JB		 4261 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4262 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4263 return -EINVAL;
4264 }
2ec600d6 4265
f8bacc21 4266 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4267 params.plink_state =
f8bacc21
JB		 4268 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4269 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4270 return -EINVAL;
4271 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4272 }
9c3990aa 4273
3b1c5a53
MP		 4274 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4275 enum nl80211_mesh_power_mode pm = nla_get_u32(
4276 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4277
4278 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4279 pm > NL80211_MESH_POWER_MAX)
4280 return -EINVAL;
4281
4282 params.local_pm = pm;
4283 }
4284
77ee7c89
JB		 4285 /* Include parameters for TDLS peer (will check later) */
4286 err = nl80211_set_station_tdls(info, &params);
4287 if (err)
4288 return err;
4289
4290 params.vlan = get_vlan(info, rdev);
4291 if (IS_ERR(params.vlan))
4292 return PTR_ERR(params.vlan);
4293
a97f4424
JB		 4294 switch (dev->ieee80211_ptr->iftype) {
4295 case NL80211_IFTYPE_AP:
4296 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4297 case NL80211_IFTYPE_P2P_GO:
074ac8df 4298 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4299 case NL80211_IFTYPE_STATION:
267335d6 4300 case NL80211_IFTYPE_ADHOC:
a97f4424 4301 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4302 break;
4303 default:
77ee7c89
JB		 4304 err = -EOPNOTSUPP;
4305 goto out_put_vlan;
034d655e
JB		 4306 }
4307
77ee7c89 4308 /* driver will call cfg80211_check_station_change() */
e35e4d28 4309 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4310
77ee7c89 4311 out_put_vlan:
5727ef1b
JB		 4312 if (params.vlan)
4313 dev_put(params.vlan);
3b85875a 4314
5727ef1b
JB		 4315 return err;
4316}
4317
4318static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4319{
4c476991 4320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4321 int err;
4c476991 4322 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4323 struct station_parameters params;
4324 u8 *mac_addr = NULL;
4325
4326 memset(&params, 0, sizeof(params));
4327
984c311b
JB		 4328 if (!rdev->ops->add_station)
4329 return -EOPNOTSUPP;
4330
5727ef1b
JB		 4331 if (!info->attrs[NL80211_ATTR_MAC])
4332 return -EINVAL;
4333
5727ef1b
JB		 4334 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4335 return -EINVAL;
4336
4337 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4338 return -EINVAL;
4339
5e4b6f56
JM		 4340 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4341 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4342 return -EINVAL;
4343
5727ef1b
JB		 4344 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4345 params.supported_rates =
4346 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4347 params.supported_rates_len =
4348 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4349 params.listen_interval =
4350 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4351
3d124ea2 4352 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4353 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4354 else
4355 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4356 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4357 return -EINVAL;
51b50fbe 4358
9d62a986
JM		 4359 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4360 params.capability =
4361 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4362 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4363 }
4364
4365 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4366 params.ext_capab =
4367 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4368 params.ext_capab_len =
4369 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4370 }
4371
36aedc90
JM		 4372 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4373 params.ht_capa =
4374 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4375
f461be3e
MP		 4376 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4377 params.vht_capa =
4378 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4379
60f4a7b1
MK		 4380 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4381 params.opmode_notif_used = true;
4382 params.opmode_notif =
4383 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4384 }
4385
f8bacc21 4386 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4387 params.plink_action =
f8bacc21
JB		 4388 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4389 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4390 return -EINVAL;
4391 }
96b78dff 4392
c01fc9ad
SD		 4393 err = nl80211_parse_sta_channel_info(info, &params);
4394 if (err)
4395 return err;
4396
ff276691
JB		 4397 err = nl80211_parse_sta_wme(info, &params);
4398 if (err)
4399 return err;
bdd90d5e 4400
bdd3ae3d 4401 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4402 return -EINVAL;
4403
77ee7c89
JB		 4404 /* When you run into this, adjust the code below for the new flag */
4405 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4406
bdd90d5e
JB		 4407 switch (dev->ieee80211_ptr->iftype) {
4408 case NL80211_IFTYPE_AP:
4409 case NL80211_IFTYPE_AP_VLAN:
4410 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4411 /* ignore WME attributes if iface/sta is not capable */
4412 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4413 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4414 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4415
bdd90d5e 4416 /* TDLS peers cannot be added */
3d124ea2
JM		 4417 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4418 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4419 return -EINVAL;
bdd90d5e
JB		 4420 /* but don't bother the driver with it */
4421 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4422
d582cffb
JB		 4423 /* allow authenticated/associated only if driver handles it */
4424 if (!(rdev->wiphy.features &
4425 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4426 params.sta_flags_mask &
4427 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4428 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4429 return -EINVAL;
4430
bdd90d5e
JB		 4431 /* must be last in here for error handling */
4432 params.vlan = get_vlan(info, rdev);
4433 if (IS_ERR(params.vlan))
4434 return PTR_ERR(params.vlan);
4435 break;
4436 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4437 /* ignore uAPSD data */
4438 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4439
d582cffb
JB		 4440 /* associated is disallowed */
4441 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4442 return -EINVAL;
bdd90d5e 4443 /* TDLS peers cannot be added */
3d124ea2
JM		 4444 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4445 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4446 return -EINVAL;
4447 break;
4448 case NL80211_IFTYPE_STATION:
93d08f0b 4449 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4450 /* ignore uAPSD data */
4451 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4452
77ee7c89
JB		 4453 /* these are disallowed */
4454 if (params.sta_flags_mask &
4455 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4456 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4457 return -EINVAL;
bdd90d5e
JB		 4458 /* Only TDLS peers can be added */
4459 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4460 return -EINVAL;
4461 /* Can only add if TDLS ... */
4462 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4463 return -EOPNOTSUPP;
4464 /* ... with external setup is supported */
4465 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4466 return -EOPNOTSUPP;
77ee7c89
JB		 4467 /*
4468 * Older wpa_supplicant versions always mark the TDLS peer
4469 * as authorized, but it shouldn't yet be.
4470 */
4471 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4472 break;
4473 default:
4474 return -EOPNOTSUPP;
c75786c9
EP		 4475 }
4476
bdd90d5e 4477 /* be aware of params.vlan when changing code here */
5727ef1b 4478
e35e4d28 4479 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4480
5727ef1b
JB		 4481 if (params.vlan)
4482 dev_put(params.vlan);
5727ef1b
JB		 4483 return err;
4484}
4485
4486static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4487{
4c476991
JB		 4488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4489 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4490 struct station_del_parameters params;
4491
4492 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4493
4494 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4495 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4496
e80cf853 4497 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4498 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4499 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4500 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4501 return -EINVAL;
5727ef1b 4502
4c476991
JB		 4503 if (!rdev->ops->del_station)
4504 return -EOPNOTSUPP;
3b85875a 4505
98856866
JM		 4506 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4507 params.subtype =
4508 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4509 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4510 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4511 return -EINVAL;
4512 } else {
4513 /* Default to Deauthentication frame */
4514 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4515 }
4516
4517 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4518 params.reason_code =
4519 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4520 if (params.reason_code == 0)
4521 return -EINVAL; /* 0 is reserved */
4522 } else {
4523 /* Default to reason code 2 */
4524 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4525 }
4526
89c771e5 4527 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4528}
4529
15e47304 4530static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4531 int flags, struct net_device *dev,
4532 u8 *dst, u8 *next_hop,
4533 struct mpath_info *pinfo)
4534{
4535 void *hdr;
4536 struct nlattr *pinfoattr;
4537
1ef4c850 4538 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4539 if (!hdr)
4540 return -1;
4541
9360ffd1
DM		 4542 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4543 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4544 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4545 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4546 goto nla_put_failure;
f5ea9120 4547
2ec600d6
LCC		 4548 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4549 if (!pinfoattr)
4550 goto nla_put_failure;
9360ffd1
DM		 4551 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4552 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4553 pinfo->frame_qlen))
4554 goto nla_put_failure;
4555 if (((pinfo->filled & MPATH_INFO_SN) &&
4556 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4557 ((pinfo->filled & MPATH_INFO_METRIC) &&
4558 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4559 pinfo->metric)) ||
4560 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4561 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4562 pinfo->exptime)) ||
4563 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4564 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4565 pinfo->flags)) ||
4566 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4567 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4568 pinfo->discovery_timeout)) ||
4569 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4570 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4571 pinfo->discovery_retries)))
4572 goto nla_put_failure;
2ec600d6
LCC		 4573
4574 nla_nest_end(msg, pinfoattr);
4575
053c095a
JB		 4576 genlmsg_end(msg, hdr);
4577 return 0;
2ec600d6
LCC		 4578
4579 nla_put_failure:
bc3ed28c
TG		 4580 genlmsg_cancel(msg, hdr);
4581 return -EMSGSIZE;
2ec600d6
LCC		 4582}
4583
4584static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4585 struct netlink_callback *cb)
2ec600d6 4586{
2ec600d6 4587 struct mpath_info pinfo;
1b8ec87a 4588 struct cfg80211_registered_device *rdev;
97990a06 4589 struct wireless_dev *wdev;
2ec600d6
LCC		 4590 u8 dst[ETH_ALEN];
4591 u8 next_hop[ETH_ALEN];
97990a06 4592 int path_idx = cb->args[2];
2ec600d6 4593 int err;
2ec600d6 4594
1b8ec87a 4595 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4596 if (err)
4597 return err;
bba95fef 4598
1b8ec87a 4599 if (!rdev->ops->dump_mpath) {
eec60b03 4600 err = -EOPNOTSUPP;
bba95fef
JB		 4601 goto out_err;
4602 }
4603
97990a06 4604 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4605 err = -EOPNOTSUPP;
0448b5fc 4606 goto out_err;
eec60b03
JM		 4607 }
4608
bba95fef 4609 while (1) {
1b8ec87a 4610 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4611 next_hop, &pinfo);
bba95fef 4612 if (err == -ENOENT)
2ec600d6 4613 break;
bba95fef 4614 if (err)
3b85875a 4615 goto out_err;
2ec600d6 4616
15e47304 4617 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4618 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4619 wdev->netdev, dst, next_hop,
bba95fef
JB		 4620 &pinfo) < 0)
4621 goto out;
2ec600d6 4622
bba95fef 4623 path_idx++;
2ec600d6 4624 }
2ec600d6 4625
2ec600d6 4626
bba95fef 4627 out:
97990a06 4628 cb->args[2] = path_idx;
bba95fef 4629 err = skb->len;
bba95fef 4630 out_err:
1b8ec87a 4631 nl80211_finish_wdev_dump(rdev);
bba95fef 4632 return err;
2ec600d6
LCC		 4633}
4634
4635static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4636{
4c476991 4637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4638 int err;
4c476991 4639 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4640 struct mpath_info pinfo;
4641 struct sk_buff *msg;
4642 u8 *dst = NULL;
4643 u8 next_hop[ETH_ALEN];
4644
4645 memset(&pinfo, 0, sizeof(pinfo));
4646
4647 if (!info->attrs[NL80211_ATTR_MAC])
4648 return -EINVAL;
4649
4650 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4651
4c476991
JB		 4652 if (!rdev->ops->get_mpath)
4653 return -EOPNOTSUPP;
2ec600d6 4654
4c476991
JB		 4655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4656 return -EOPNOTSUPP;
eec60b03 4657
e35e4d28 4658 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4659 if (err)
4c476991 4660 return err;
2ec600d6 4661
fd2120ca 4662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4663 if (!msg)
4c476991 4664 return -ENOMEM;
2ec600d6 4665
15e47304 4666 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4667 dev, dst, next_hop, &pinfo) < 0) {
4668 nlmsg_free(msg);
4669 return -ENOBUFS;
4670 }
3b85875a 4671
4c476991 4672 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4673}
4674
4675static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4676{
4c476991
JB		 4677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4678 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4679 u8 *dst = NULL;
4680 u8 *next_hop = NULL;
4681
4682 if (!info->attrs[NL80211_ATTR_MAC])
4683 return -EINVAL;
4684
4685 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4686 return -EINVAL;
4687
4688 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4689 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4690
4c476991
JB		 4691 if (!rdev->ops->change_mpath)
4692 return -EOPNOTSUPP;
35a8efe1 4693
4c476991
JB		 4694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4695 return -EOPNOTSUPP;
2ec600d6 4696
e35e4d28 4697 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4698}
4c476991 4699
2ec600d6
LCC		 4700static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4701{
4c476991
JB		 4702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4703 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4704 u8 *dst = NULL;
4705 u8 *next_hop = NULL;
4706
4707 if (!info->attrs[NL80211_ATTR_MAC])
4708 return -EINVAL;
4709
4710 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4711 return -EINVAL;
4712
4713 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4714 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4715
4c476991
JB		 4716 if (!rdev->ops->add_mpath)
4717 return -EOPNOTSUPP;
35a8efe1 4718
4c476991
JB		 4719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4720 return -EOPNOTSUPP;
2ec600d6 4721
e35e4d28 4722 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4723}
4724
4725static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4726{
4c476991
JB		 4727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4728 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4729 u8 *dst = NULL;
4730
4731 if (info->attrs[NL80211_ATTR_MAC])
4732 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4733
4c476991
JB		 4734 if (!rdev->ops->del_mpath)
4735 return -EOPNOTSUPP;
3b85875a 4736
e35e4d28 4737 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4738}
4739
66be7d2b
HR		 4740static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4741{
4742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4743 int err;
4744 struct net_device *dev = info->user_ptr[1];
4745 struct mpath_info pinfo;
4746 struct sk_buff *msg;
4747 u8 *dst = NULL;
4748 u8 mpp[ETH_ALEN];
4749
4750 memset(&pinfo, 0, sizeof(pinfo));
4751
4752 if (!info->attrs[NL80211_ATTR_MAC])
4753 return -EINVAL;
4754
4755 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4756
4757 if (!rdev->ops->get_mpp)
4758 return -EOPNOTSUPP;
4759
4760 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4761 return -EOPNOTSUPP;
4762
4763 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4764 if (err)
4765 return err;
4766
4767 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4768 if (!msg)
4769 return -ENOMEM;
4770
4771 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4772 dev, dst, mpp, &pinfo) < 0) {
4773 nlmsg_free(msg);
4774 return -ENOBUFS;
4775 }
4776
4777 return genlmsg_reply(msg, info);
4778}
4779
4780static int nl80211_dump_mpp(struct sk_buff *skb,
4781 struct netlink_callback *cb)
4782{
4783 struct mpath_info pinfo;
4784 struct cfg80211_registered_device *rdev;
4785 struct wireless_dev *wdev;
4786 u8 dst[ETH_ALEN];
4787 u8 mpp[ETH_ALEN];
4788 int path_idx = cb->args[2];
4789 int err;
4790
4791 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4792 if (err)
4793 return err;
4794
4795 if (!rdev->ops->dump_mpp) {
4796 err = -EOPNOTSUPP;
4797 goto out_err;
4798 }
4799
4800 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4801 err = -EOPNOTSUPP;
4802 goto out_err;
4803 }
4804
4805 while (1) {
4806 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4807 mpp, &pinfo);
4808 if (err == -ENOENT)
4809 break;
4810 if (err)
4811 goto out_err;
4812
4813 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4815 wdev->netdev, dst, mpp,
4816 &pinfo) < 0)
4817 goto out;
4818
4819 path_idx++;
4820 }
4821
4822 out:
4823 cb->args[2] = path_idx;
4824 err = skb->len;
4825 out_err:
4826 nl80211_finish_wdev_dump(rdev);
4827 return err;
4828}
4829
9f1ba906
JM		 4830static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4831{
4c476991
JB		 4832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4833 struct net_device *dev = info->user_ptr[1];
c56589ed 4834 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4835 struct bss_parameters params;
c56589ed 4836 int err;
9f1ba906
JM		 4837
4838 memset(&params, 0, sizeof(params));
4839 /* default to not changing parameters */
4840 params.use_cts_prot = -1;
4841 params.use_short_preamble = -1;
4842 params.use_short_slot_time = -1;
fd8aaaf3 4843 params.ap_isolate = -1;
50b12f59 4844 params.ht_opmode = -1;
53cabad7
JB		 4845 params.p2p_ctwindow = -1;
4846 params.p2p_opp_ps = -1;
9f1ba906
JM		 4847
4848 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4849 params.use_cts_prot =
4850 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4851 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4852 params.use_short_preamble =
4853 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4854 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4855 params.use_short_slot_time =
4856 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4857 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4858 params.basic_rates =
4859 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4860 params.basic_rates_len =
4861 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4862 }
fd8aaaf3
FF		 4863 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4864 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4865 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4866 params.ht_opmode =
4867 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4868
53cabad7
JB		 4869 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4870 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4871 return -EINVAL;
4872 params.p2p_ctwindow =
4873 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4874 if (params.p2p_ctwindow < 0)
4875 return -EINVAL;
4876 if (params.p2p_ctwindow != 0 &&
4877 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4878 return -EINVAL;
4879 }
4880
4881 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4882 u8 tmp;
4883
4884 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4885 return -EINVAL;
4886 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4887 if (tmp > 1)
4888 return -EINVAL;
4889 params.p2p_opp_ps = tmp;
4890 if (params.p2p_opp_ps &&
4891 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4892 return -EINVAL;
4893 }
4894
4c476991
JB		 4895 if (!rdev->ops->change_bss)
4896 return -EOPNOTSUPP;
9f1ba906 4897
074ac8df 4898 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4899 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4900 return -EOPNOTSUPP;
3b85875a 4901
c56589ed
SW		 4902 wdev_lock(wdev);
4903 err = rdev_change_bss(rdev, dev, &params);
4904 wdev_unlock(wdev);
4905
4906 return err;
9f1ba906
JM		 4907}
4908
b54452b0 4909static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4910 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4911 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4912 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4913 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4914 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4915 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4916 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4917};
4918
4919static int parse_reg_rule(struct nlattr *tb[],
4920 struct ieee80211_reg_rule *reg_rule)
4921{
4922 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4923 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4924
4925 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4926 return -EINVAL;
4927 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4928 return -EINVAL;
4929 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4930 return -EINVAL;
b0dfd2ea
JD		 4931 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4932 return -EINVAL;
b2e1b302
LR		 4933 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4934 return -EINVAL;
4935
4936 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4937
4938 freq_range->start_freq_khz =
4939 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4940 freq_range->end_freq_khz =
4941 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4942 freq_range->max_bandwidth_khz =
4943 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4944
4945 power_rule->max_eirp =
4946 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4947
4948 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4949 power_rule->max_antenna_gain =
4950 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4951
089027e5
JD		 4952 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4953 reg_rule->dfs_cac_ms =
4954 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4955
b2e1b302
LR		 4956 return 0;
4957}
4958
4959static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4960{
b2e1b302 4961 char *data = NULL;
05050753 4962 bool is_indoor;
57b5ce07 4963 enum nl80211_user_reg_hint_type user_reg_hint_type;
05050753
I		 4964 u32 owner_nlportid;
4965
b2e1b302 4966
80778f18
LR		 4967 /*
4968 * You should only get this when cfg80211 hasn't yet initialized
4969 * completely when built-in to the kernel right between the time
4970 * window between nl80211_init() and regulatory_init(), if that is
4971 * even possible.
4972 */
458f4f9e 4973 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4974 return -EINPROGRESS;
80778f18 4975
57b5ce07
LR		 4976 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4977 user_reg_hint_type =
4978 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4979 else
4980 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4981
4982 switch (user_reg_hint_type) {
4983 case NL80211_USER_REG_HINT_USER:
4984 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4985 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4986 return -EINVAL;
4987
4988 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4989 return regulatory_hint_user(data, user_reg_hint_type);
4990 case NL80211_USER_REG_HINT_INDOOR:
05050753
I		 4991 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
4992 owner_nlportid = info->snd_portid;
4993 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
4994 } else {
4995 owner_nlportid = 0;
4996 is_indoor = true;
4997 }
4998
4999 return regulatory_hint_indoor(is_indoor, owner_nlportid);
57b5ce07
LR		 5000 default:
5001 return -EINVAL;
5002 }
b2e1b302
LR		 5003}
5004
24bdd9f4 5005static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 5006 struct genl_info *info)
93da9cc1 5007{
4c476991 5008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 5009 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 5010 struct wireless_dev *wdev = dev->ieee80211_ptr;
5011 struct mesh_config cur_params;
5012 int err = 0;
93da9cc1 5013 void *hdr;
5014 struct nlattr *pinfoattr;
5015 struct sk_buff *msg;
5016
29cbe68c
JB		 5017 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5018 return -EOPNOTSUPP;
5019
24bdd9f4 5020 if (!rdev->ops->get_mesh_config)
4c476991 5021 return -EOPNOTSUPP;
f3f92586 5022
29cbe68c
JB		 5023 wdev_lock(wdev);
5024 /* If not connected, get default parameters */
5025 if (!wdev->mesh_id_len)
5026 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5027 else
e35e4d28 5028 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5029 wdev_unlock(wdev);
5030
93da9cc1 5031 if (err)
4c476991 5032 return err;
93da9cc1 5033
5034 /* Draw up a netlink message to send back */
fd2120ca 5035 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5036 if (!msg)
5037 return -ENOMEM;
15e47304 5038 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5039 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5040 if (!hdr)
efe1cf0c 5041 goto out;
24bdd9f4 5042 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5043 if (!pinfoattr)
5044 goto nla_put_failure;
9360ffd1
DM		 5045 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5046 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5047 cur_params.dot11MeshRetryTimeout) ||
5048 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5049 cur_params.dot11MeshConfirmTimeout) ||
5050 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5051 cur_params.dot11MeshHoldingTimeout) ||
5052 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5053 cur_params.dot11MeshMaxPeerLinks) ||
5054 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5055 cur_params.dot11MeshMaxRetries) ||
5056 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5057 cur_params.dot11MeshTTL) ||
5058 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5059 cur_params.element_ttl) ||
5060 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5061 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5062 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5063 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5064 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5065 cur_params.dot11MeshHWMPmaxPREQretries) ||
5066 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5067 cur_params.path_refresh_time) ||
5068 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5069 cur_params.min_discovery_timeout) ||
5070 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5071 cur_params.dot11MeshHWMPactivePathTimeout) ||
5072 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5073 cur_params.dot11MeshHWMPpreqMinInterval) ||
5074 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5075 cur_params.dot11MeshHWMPperrMinInterval) ||
5076 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5077 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5078 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5079 cur_params.dot11MeshHWMPRootMode) ||
5080 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5081 cur_params.dot11MeshHWMPRannInterval) ||
5082 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5083 cur_params.dot11MeshGateAnnouncementProtocol) ||
5084 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5085 cur_params.dot11MeshForwarding) ||
5086 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5087 cur_params.rssi_threshold) ||
5088 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5089 cur_params.ht_opmode) ||
5090 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5091 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5092 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5093 cur_params.dot11MeshHWMProotInterval) ||
5094 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5095 cur_params.dot11MeshHWMPconfirmationInterval) ||
5096 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5097 cur_params.power_mode) ||
5098 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5099 cur_params.dot11MeshAwakeWindowDuration) ||
5100 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5101 cur_params.plink_timeout))
9360ffd1 5102 goto nla_put_failure;
93da9cc1 5103 nla_nest_end(msg, pinfoattr);
5104 genlmsg_end(msg, hdr);
4c476991 5105 return genlmsg_reply(msg, info);
93da9cc1 5106
3b85875a 5107 nla_put_failure:
93da9cc1 5108 genlmsg_cancel(msg, hdr);
efe1cf0c 5109 out:
d080e275 5110 nlmsg_free(msg);
4c476991 5111 return -ENOBUFS;
93da9cc1 5112}
5113
b54452b0 5114static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5115 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5116 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5117 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5118 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5119 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5120 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5121 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5122 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5123 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5124 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5125 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5126 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5127 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5128 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5129 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5130 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5131 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5132 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5133 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5134 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5135 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5136 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5137 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5138 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5139 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5140 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5141 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5142 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5143};
5144
c80d545d
JC		 5145static const struct nla_policy
5146 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5147 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5148 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5149 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5150 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5151 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5152 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5153 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5154 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5155 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5156};
5157
24bdd9f4 5158static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5159 struct mesh_config *cfg,
5160 u32 *mask_out)
93da9cc1 5161{
93da9cc1 5162 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5163 u32 mask = 0;
93da9cc1 5164
ea54fba2
MP		 5165#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5166do { \
5167 if (tb[attr]) { \
5168 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5169 return -EINVAL; \
5170 cfg->param = fn(tb[attr]); \
5171 mask |= (1 << (attr - 1)); \
5172 } \
5173} while (0)
bd90fdcc
JB		 5174
5175
24bdd9f4 5176 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5177 return -EINVAL;
5178 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5179 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5180 nl80211_meshconf_params_policy))
93da9cc1 5181 return -EINVAL;
5182
93da9cc1 5183 /* This makes sure that there aren't more than 32 mesh config
5184 * parameters (otherwise our bitfield scheme would not work.) */
5185 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5186
5187 /* Fill in the params struct */
ea54fba2 5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5189 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5190 nla_get_u16);
ea54fba2 5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5192 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5193 nla_get_u16);
ea54fba2 5194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5195 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5196 nla_get_u16);
ea54fba2 5197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5198 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5199 nla_get_u16);
ea54fba2 5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5201 mask, NL80211_MESHCONF_MAX_RETRIES,
5202 nla_get_u8);
ea54fba2 5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5204 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5206 mask, NL80211_MESHCONF_ELEMENT_TTL,
5207 nla_get_u8);
ea54fba2 5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5209 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5210 nla_get_u8);
ea54fba2
MP		 5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5212 1, 255, mask,
a4f606ea
CYY		 5213 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5214 nla_get_u32);
ea54fba2 5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5216 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5217 nla_get_u8);
ea54fba2 5218 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5219 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5220 nla_get_u32);
ea54fba2 5221 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5222 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5223 nla_get_u16);
ea54fba2
MP		 5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5225 1, 65535, mask,
a4f606ea
CYY		 5226 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5227 nla_get_u32);
93da9cc1 5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5229 1, 65535, mask,
5230 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5231 nla_get_u16);
dca7e943 5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5233 1, 65535, mask,
5234 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5235 nla_get_u16);
93da9cc1 5236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5237 dot11MeshHWMPnetDiameterTraversalTime,
5238 1, 65535, mask,
a4f606ea
CYY		 5239 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5240 nla_get_u16);
ea54fba2
MP		 5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5242 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5243 nla_get_u8);
5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5245 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5246 nla_get_u16);
63c5723b 5247 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5248 dot11MeshGateAnnouncementProtocol, 0, 1,
5249 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5250 nla_get_u8);
ea54fba2 5251 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5252 mask, NL80211_MESHCONF_FORWARDING,
5253 nla_get_u8);
83374fe9 5254 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5255 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5256 nla_get_s32);
ea54fba2 5257 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5258 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5259 nla_get_u16);
5260 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5261 1, 65535, mask,
ac1073a6
CYY		 5262 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5263 nla_get_u32);
ea54fba2 5264 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5265 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5266 nla_get_u16);
5267 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5268 dot11MeshHWMPconfirmationInterval,
5269 1, 65535, mask,
728b19e5 5270 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5271 nla_get_u16);
3b1c5a53
MP		 5272 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5273 NL80211_MESH_POWER_ACTIVE,
5274 NL80211_MESH_POWER_MAX,
5275 mask, NL80211_MESHCONF_POWER_MODE,
5276 nla_get_u32);
5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5278 0, 65535, mask,
5279 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5281 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5282 nla_get_u32);
bd90fdcc
JB		 5283 if (mask_out)
5284 *mask_out = mask;
c80d545d 5285
bd90fdcc
JB		 5286 return 0;
5287
5288#undef FILL_IN_MESH_PARAM_IF_SET
5289}
5290
c80d545d
JC		 5291static int nl80211_parse_mesh_setup(struct genl_info *info,
5292 struct mesh_setup *setup)
5293{
bb2798d4 5294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5295 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5296
5297 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5298 return -EINVAL;
5299 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5300 info->attrs[NL80211_ATTR_MESH_SETUP],
5301 nl80211_mesh_setup_params_policy))
5302 return -EINVAL;
5303
d299a1f2
JC		 5304 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5305 setup->sync_method =
5306 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5307 IEEE80211_SYNC_METHOD_VENDOR :
5308 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5309
c80d545d
JC		 5310 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5311 setup->path_sel_proto =
5312 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5313 IEEE80211_PATH_PROTOCOL_VENDOR :
5314 IEEE80211_PATH_PROTOCOL_HWMP;
5315
5316 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5317 setup->path_metric =
5318 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5319 IEEE80211_PATH_METRIC_VENDOR :
5320 IEEE80211_PATH_METRIC_AIRTIME;
5321
581a8b0f
JC		 5322
5323 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5324 struct nlattr *ieattr =
581a8b0f 5325 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5326 if (!is_valid_ie_attr(ieattr))
5327 return -EINVAL;
581a8b0f
JC		 5328 setup->ie = nla_data(ieattr);
5329 setup->ie_len = nla_len(ieattr);
c80d545d 5330 }
bb2798d4
TP		 5331 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5332 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5333 return -EINVAL;
5334 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5335 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5336 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5337 if (setup->is_secure)
5338 setup->user_mpm = true;
c80d545d 5339
6e16d90b
CT		 5340 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5341 if (!setup->user_mpm)
5342 return -EINVAL;
5343 setup->auth_id =
5344 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5345 }
5346
c80d545d
JC		 5347 return 0;
5348}
5349
24bdd9f4 5350static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5351 struct genl_info *info)
bd90fdcc
JB		 5352{
5353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5354 struct net_device *dev = info->user_ptr[1];
29cbe68c 5355 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5356 struct mesh_config cfg;
5357 u32 mask;
5358 int err;
5359
29cbe68c
JB		 5360 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5361 return -EOPNOTSUPP;
5362
24bdd9f4 5363 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5364 return -EOPNOTSUPP;
5365
24bdd9f4 5366 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5367 if (err)
5368 return err;
5369
29cbe68c
JB		 5370 wdev_lock(wdev);
5371 if (!wdev->mesh_id_len)
5372 err = -ENOLINK;
5373
5374 if (!err)
e35e4d28 5375 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5376
5377 wdev_unlock(wdev);
5378
5379 return err;
93da9cc1 5380}
5381
ad30ca2c
AN		 5382static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5383 struct sk_buff *msg)
f130347c 5384{
f130347c
LR		 5385 struct nlattr *nl_reg_rules;
5386 unsigned int i;
f130347c 5387
458f4f9e
JB		 5388 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5389 (regdom->dfs_region &&
5390 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5391 goto nla_put_failure;
458f4f9e 5392
f130347c
LR		 5393 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5394 if (!nl_reg_rules)
ad30ca2c 5395 goto nla_put_failure;
f130347c 5396
458f4f9e 5397 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5398 struct nlattr *nl_reg_rule;
5399 const struct ieee80211_reg_rule *reg_rule;
5400 const struct ieee80211_freq_range *freq_range;
5401 const struct ieee80211_power_rule *power_rule;
97524820 5402 unsigned int max_bandwidth_khz;
f130347c 5403
458f4f9e 5404 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5405 freq_range = &reg_rule->freq_range;
5406 power_rule = &reg_rule->power_rule;
5407
5408 nl_reg_rule = nla_nest_start(msg, i);
5409 if (!nl_reg_rule)
ad30ca2c 5410 goto nla_put_failure;
f130347c 5411
97524820
JD		 5412 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5413 if (!max_bandwidth_khz)
5414 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5415 reg_rule);
5416
9360ffd1
DM		 5417 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5418 reg_rule->flags) ||
5419 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5420 freq_range->start_freq_khz) ||
5421 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5422 freq_range->end_freq_khz) ||
5423 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5424 max_bandwidth_khz) ||
9360ffd1
DM		 5425 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5426 power_rule->max_antenna_gain) ||
5427 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5428 power_rule->max_eirp) ||
5429 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5430 reg_rule->dfs_cac_ms))
ad30ca2c 5431 goto nla_put_failure;
f130347c
LR		 5432
5433 nla_nest_end(msg, nl_reg_rule);
5434 }
5435
5436 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5437 return 0;
5438
5439nla_put_failure:
5440 return -EMSGSIZE;
5441}
5442
5443static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5444{
5445 const struct ieee80211_regdomain *regdom = NULL;
5446 struct cfg80211_registered_device *rdev;
5447 struct wiphy *wiphy = NULL;
5448 struct sk_buff *msg;
5449 void *hdr;
5450
5451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5452 if (!msg)
5453 return -ENOBUFS;
5454
5455 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5456 NL80211_CMD_GET_REG);
5457 if (!hdr)
5458 goto put_failure;
5459
5460 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5461 bool self_managed;
5462
ad30ca2c
AN		 5463 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5464 if (IS_ERR(rdev)) {
5465 nlmsg_free(msg);
5466 return PTR_ERR(rdev);
5467 }
5468
5469 wiphy = &rdev->wiphy;
1bdd716c
AN		 5470 self_managed = wiphy->regulatory_flags &
5471 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5472 regdom = get_wiphy_regdom(wiphy);
5473
1bdd716c
AN		 5474 /* a self-managed-reg device must have a private regdom */
5475 if (WARN_ON(!regdom && self_managed)) {
5476 nlmsg_free(msg);
5477 return -EINVAL;
5478 }
5479
ad30ca2c
AN		 5480 if (regdom &&
5481 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5482 goto nla_put_failure;
5483 }
5484
5485 if (!wiphy && reg_last_request_cell_base() &&
5486 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5487 NL80211_USER_REG_HINT_CELL_BASE))
5488 goto nla_put_failure;
5489
5490 rcu_read_lock();
5491
5492 if (!regdom)
5493 regdom = rcu_dereference(cfg80211_regdomain);
5494
5495 if (nl80211_put_regdom(regdom, msg))
5496 goto nla_put_failure_rcu;
5497
5498 rcu_read_unlock();
f130347c
LR		 5499
5500 genlmsg_end(msg, hdr);
5fe231e8 5501 return genlmsg_reply(msg, info);
f130347c 5502
458f4f9e
JB		 5503nla_put_failure_rcu:
5504 rcu_read_unlock();
f130347c
LR		 5505nla_put_failure:
5506 genlmsg_cancel(msg, hdr);
efe1cf0c 5507put_failure:
d080e275 5508 nlmsg_free(msg);
5fe231e8 5509 return -EMSGSIZE;
f130347c
LR		 5510}
5511
ad30ca2c
AN		 5512static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5513 u32 seq, int flags, struct wiphy *wiphy,
5514 const struct ieee80211_regdomain *regdom)
5515{
5516 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5517 NL80211_CMD_GET_REG);
5518
5519 if (!hdr)
5520 return -1;
5521
5522 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5523
5524 if (nl80211_put_regdom(regdom, msg))
5525 goto nla_put_failure;
5526
5527 if (!wiphy && reg_last_request_cell_base() &&
5528 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5529 NL80211_USER_REG_HINT_CELL_BASE))
5530 goto nla_put_failure;
5531
5532 if (wiphy &&
5533 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5534 goto nla_put_failure;
5535
1bdd716c
AN		 5536 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5537 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5538 goto nla_put_failure;
5539
053c095a
JB		 5540 genlmsg_end(msg, hdr);
5541 return 0;
ad30ca2c
AN		 5542
5543nla_put_failure:
5544 genlmsg_cancel(msg, hdr);
5545 return -EMSGSIZE;
5546}
5547
5548static int nl80211_get_reg_dump(struct sk_buff *skb,
5549 struct netlink_callback *cb)
5550{
5551 const struct ieee80211_regdomain *regdom = NULL;
5552 struct cfg80211_registered_device *rdev;
5553 int err, reg_idx, start = cb->args[2];
5554
5555 rtnl_lock();
5556
5557 if (cfg80211_regdomain && start == 0) {
5558 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5559 NLM_F_MULTI, NULL,
5560 rtnl_dereference(cfg80211_regdomain));
5561 if (err < 0)
5562 goto out_err;
5563 }
5564
5565 /* the global regdom is idx 0 */
5566 reg_idx = 1;
5567 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5568 regdom = get_wiphy_regdom(&rdev->wiphy);
5569 if (!regdom)
5570 continue;
5571
5572 if (++reg_idx <= start)
5573 continue;
5574
5575 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5576 NLM_F_MULTI, &rdev->wiphy, regdom);
5577 if (err < 0) {
5578 reg_idx--;
5579 break;
5580 }
5581 }
5582
5583 cb->args[2] = reg_idx;
5584 err = skb->len;
5585out_err:
5586 rtnl_unlock();
5587 return err;
5588}
5589
b2e1b302
LR		 5590static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5591{
5592 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5593 struct nlattr *nl_reg_rule;
ea372c54
JB		 5594 char *alpha2;
5595 int rem_reg_rules, r;
b2e1b302 5596 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5597 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5598 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5599
5600 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5601 return -EINVAL;
5602
5603 if (!info->attrs[NL80211_ATTR_REG_RULES])
5604 return -EINVAL;
5605
5606 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5607
8b60b078
LR		 5608 if (info->attrs[NL80211_ATTR_DFS_REGION])
5609 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5610
b2e1b302 5611 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5612 rem_reg_rules) {
b2e1b302
LR		 5613 num_rules++;
5614 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5615 return -EINVAL;
b2e1b302
LR		 5616 }
5617
e438768f
LR		 5618 if (!reg_is_valid_request(alpha2))
5619 return -EINVAL;
5620
b2e1b302 5621 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5622 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5623
5624 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5625 if (!rd)
5626 return -ENOMEM;
b2e1b302
LR		 5627
5628 rd->n_reg_rules = num_rules;
5629 rd->alpha2[0] = alpha2[0];
5630 rd->alpha2[1] = alpha2[1];
5631
8b60b078
LR		 5632 /*
5633 * Disable DFS master mode if the DFS region was
5634 * not supported or known on this kernel.
5635 */
5636 if (reg_supported_dfs_region(dfs_region))
5637 rd->dfs_region = dfs_region;
5638
b2e1b302 5639 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5640 rem_reg_rules) {
ae811e21
JB		 5641 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5642 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5643 reg_rule_policy);
5644 if (r)
5645 goto bad_reg;
b2e1b302
LR		 5646 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5647 if (r)
5648 goto bad_reg;
5649
5650 rule_idx++;
5651
d0e18f83
LR		 5652 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5653 r = -EINVAL;
b2e1b302 5654 goto bad_reg;
d0e18f83 5655 }
b2e1b302
LR		 5656 }
5657
b2e1b302 5658 r = set_regdom(rd);
6913b49a 5659 /* set_regdom took ownership */
1a919318 5660 rd = NULL;
b2e1b302 5661
d2372b31 5662 bad_reg:
b2e1b302 5663 kfree(rd);
d0e18f83 5664 return r;
b2e1b302
LR		 5665}
5666
83f5e2cf
JB		 5667static int validate_scan_freqs(struct nlattr *freqs)
5668{
5669 struct nlattr *attr1, *attr2;
5670 int n_channels = 0, tmp1, tmp2;
5671
5672 nla_for_each_nested(attr1, freqs, tmp1) {
5673 n_channels++;
5674 /*
5675 * Some hardware has a limited channel list for
5676 * scanning, and it is pretty much nonsensical
5677 * to scan for a channel twice, so disallow that
5678 * and don't require drivers to check that the
5679 * channel list they get isn't longer than what
5680 * they can scan, as long as they can scan all
5681 * the channels they registered at once.
5682 */
5683 nla_for_each_nested(attr2, freqs, tmp2)
5684 if (attr1 != attr2 &&
5685 nla_get_u32(attr1) == nla_get_u32(attr2))
5686 return 0;
5687 }
5688
5689 return n_channels;
5690}
5691
ad2b26ab
JB		 5692static int nl80211_parse_random_mac(struct nlattr **attrs,
5693 u8 *mac_addr, u8 *mac_addr_mask)
5694{
5695 int i;
5696
5697 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5698 memset(mac_addr, 0, ETH_ALEN);
5699 memset(mac_addr_mask, 0, ETH_ALEN);
5700 mac_addr[0] = 0x2;
5701 mac_addr_mask[0] = 0x3;
5702
5703 return 0;
5704 }
5705
5706 /* need both or none */
5707 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5708 return -EINVAL;
5709
5710 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5711 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5712
5713 /* don't allow or configure an mcast address */
5714 if (!is_multicast_ether_addr(mac_addr_mask) ||
5715 is_multicast_ether_addr(mac_addr))
5716 return -EINVAL;
5717
5718 /*
5719 * allow users to pass a MAC address that has bits set outside
5720 * of the mask, but don't bother drivers with having to deal
5721 * with such bits
5722 */
5723 for (i = 0; i < ETH_ALEN; i++)
5724 mac_addr[i] &= mac_addr_mask[i];
5725
5726 return 0;
5727}
5728
2a519311
JB		 5729static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5730{
4c476991 5731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5732 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5733 struct cfg80211_scan_request *request;
2a519311
JB		 5734 struct nlattr *attr;
5735 struct wiphy *wiphy;
83f5e2cf 5736 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5737 size_t ie_len;
2a519311 5738
f4a11bb0
JB		 5739 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5740 return -EINVAL;
5741
79c97e97 5742 wiphy = &rdev->wiphy;
2a519311 5743
4c476991
JB		 5744 if (!rdev->ops->scan)
5745 return -EOPNOTSUPP;
2a519311 5746
f9d15d16 5747 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5748 err = -EBUSY;
5749 goto unlock;
5750 }
2a519311
JB		 5751
5752 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5753 n_channels = validate_scan_freqs(
5754 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5755 if (!n_channels) {
5756 err = -EINVAL;
5757 goto unlock;
5758 }
2a519311 5759 } else {
bdfbec2d 5760 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5761 }
5762
5763 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5764 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5765 n_ssids++;
5766
f9f47529
JB		 5767 if (n_ssids > wiphy->max_scan_ssids) {
5768 err = -EINVAL;
5769 goto unlock;
5770 }
2a519311 5771
70692ad2
JM		 5772 if (info->attrs[NL80211_ATTR_IE])
5773 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5774 else
5775 ie_len = 0;
5776
f9f47529
JB		 5777 if (ie_len > wiphy->max_scan_ie_len) {
5778 err = -EINVAL;
5779 goto unlock;
5780 }
18a83659 5781
2a519311 5782 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5783 + sizeof(*request->ssids) * n_ssids
5784 + sizeof(*request->channels) * n_channels
70692ad2 5785 + ie_len, GFP_KERNEL);
f9f47529
JB		 5786 if (!request) {
5787 err = -ENOMEM;
5788 goto unlock;
5789 }
2a519311 5790
2a519311 5791 if (n_ssids)
5ba63533 5792 request->ssids = (void *)&request->channels[n_channels];
2a519311 5793 request->n_ssids = n_ssids;
70692ad2 5794 if (ie_len) {
13874e4b 5795 if (n_ssids)
70692ad2
JM		 5796 request->ie = (void *)(request->ssids + n_ssids);
5797 else
5798 request->ie = (void *)(request->channels + n_channels);
5799 }
2a519311 5800
584991dc 5801 i = 0;
2a519311
JB		 5802 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5803 /* user specified, bail out if channel not found */
2a519311 5804 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5805 struct ieee80211_channel *chan;
5806
5807 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5808
5809 if (!chan) {
2a519311
JB		 5810 err = -EINVAL;
5811 goto out_free;
5812 }
584991dc
JB		 5813
5814 /* ignore disabled channels */
5815 if (chan->flags & IEEE80211_CHAN_DISABLED)
5816 continue;
5817
5818 request->channels[i] = chan;
2a519311
JB		 5819 i++;
5820 }
5821 } else {
34850ab2
JB		 5822 enum ieee80211_band band;
5823
2a519311 5824 /* all channels */
2a519311
JB		 5825 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5826 int j;
5827 if (!wiphy->bands[band])
5828 continue;
5829 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5830 struct ieee80211_channel *chan;
5831
5832 chan = &wiphy->bands[band]->channels[j];
5833
5834 if (chan->flags & IEEE80211_CHAN_DISABLED)
5835 continue;
5836
5837 request->channels[i] = chan;
2a519311
JB		 5838 i++;
5839 }
5840 }
5841 }
5842
584991dc
JB		 5843 if (!i) {
5844 err = -EINVAL;
5845 goto out_free;
5846 }
5847
5848 request->n_channels = i;
5849
2a519311 5850 i = 0;
13874e4b 5851 if (n_ssids) {
2a519311 5852 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5853 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5854 err = -EINVAL;
5855 goto out_free;
5856 }
57a27e1d 5857 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5858 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5859 i++;
5860 }
5861 }
5862
70692ad2
JM		 5863 if (info->attrs[NL80211_ATTR_IE]) {
5864 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5865 memcpy((void *)request->ie,
5866 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5867 request->ie_len);
5868 }
5869
34850ab2 5870 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5871 if (wiphy->bands[i])
5872 request->rates[i] =
5873 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5874
5875 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5876 nla_for_each_nested(attr,
5877 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5878 tmp) {
5879 enum ieee80211_band band = nla_type(attr);
5880
84404623 5881 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5882 err = -EINVAL;
5883 goto out_free;
5884 }
1b09cd82
FF		 5885
5886 if (!wiphy->bands[band])
5887 continue;
5888
34850ab2
JB		 5889 err = ieee80211_get_ratemask(wiphy->bands[band],
5890 nla_data(attr),
5891 nla_len(attr),
5892 &request->rates[band]);
5893 if (err)
5894 goto out_free;
5895 }
5896 }
5897
46856bbf 5898 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5899 request->flags = nla_get_u32(
5900 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5901 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5902 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5903 err = -EOPNOTSUPP;
5904 goto out_free;
5905 }
ad2b26ab
JB		 5906
5907 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5908 if (!(wiphy->features &
5909 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5910 err = -EOPNOTSUPP;
5911 goto out_free;
5912 }
5913
5914 if (wdev->current_bss) {
5915 err = -EOPNOTSUPP;
5916 goto out_free;
5917 }
5918
5919 err = nl80211_parse_random_mac(info->attrs,
5920 request->mac_addr,
5921 request->mac_addr_mask);
5922 if (err)
5923 goto out_free;
5924 }
46856bbf 5925 }
ed473771 5926
e9f935e3
RM		 5927 request->no_cck =
5928 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5929
fd014284 5930 request->wdev = wdev;
79c97e97 5931 request->wiphy = &rdev->wiphy;
15d6030b 5932 request->scan_start = jiffies;
2a519311 5933
79c97e97 5934 rdev->scan_req = request;
e35e4d28 5935 err = rdev_scan(rdev, request);
2a519311 5936
463d0183 5937 if (!err) {
fd014284
JB		 5938 nl80211_send_scan_start(rdev, wdev);
5939 if (wdev->netdev)
5940 dev_hold(wdev->netdev);
4c476991 5941 } else {
2a519311 5942 out_free:
79c97e97 5943 rdev->scan_req = NULL;
2a519311
JB		 5944 kfree(request);
5945 }
3b85875a 5946
f9f47529 5947 unlock:
2a519311
JB		 5948 return err;
5949}
5950
256da02d 5951static struct cfg80211_sched_scan_request *
ad2b26ab 5952nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5953 struct nlattr **attrs)
807f8a8c
LC		 5954{
5955 struct cfg80211_sched_scan_request *request;
807f8a8c 5956 struct nlattr *attr;
a1f1c21c 5957 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5958 u32 interval;
807f8a8c
LC		 5959 enum ieee80211_band band;
5960 size_t ie_len;
a1f1c21c 5961 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5962 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5963
256da02d
LC		 5964 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5965 return ERR_PTR(-EINVAL);
807f8a8c 5966
256da02d
LC		 5967 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5968 return ERR_PTR(-EINVAL);
bbe6ad6d 5969
256da02d 5970 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5971 if (interval == 0)
256da02d 5972 return ERR_PTR(-EINVAL);
807f8a8c 5973
256da02d 5974 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5975 n_channels = validate_scan_freqs(
256da02d 5976 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5977 if (!n_channels)
256da02d 5978 return ERR_PTR(-EINVAL);
807f8a8c 5979 } else {
bdfbec2d 5980 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5981 }
5982
256da02d
LC		 5983 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5984 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5985 tmp)
5986 n_ssids++;
5987
93b6aa69 5988 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5989 return ERR_PTR(-EINVAL);
807f8a8c 5990
ea73cbce
JB		 5991 /*
5992 * First, count the number of 'real' matchsets. Due to an issue with
5993 * the old implementation, matchsets containing only the RSSI attribute
5994 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5995 * RSSI for all matchsets, rather than their own matchset for reporting
5996 * all APs with a strong RSSI. This is needed to be compatible with
5997 * older userspace that treated a matchset with only the RSSI as the
5998 * global RSSI for all other matchsets - if there are other matchsets.
5999 */
256da02d 6000 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6001 nla_for_each_nested(attr,
256da02d 6002 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 6003 tmp) {
6004 struct nlattr *rssi;
6005
6006 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6007 nla_data(attr), nla_len(attr),
6008 nl80211_match_policy);
6009 if (err)
256da02d 6010 return ERR_PTR(err);
ea73cbce
JB		 6011 /* add other standalone attributes here */
6012 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6013 n_match_sets++;
6014 continue;
6015 }
6016 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6017 if (rssi)
6018 default_match_rssi = nla_get_s32(rssi);
6019 }
6020 }
6021
6022 /* However, if there's no other matchset, add the RSSI one */
6023 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6024 n_match_sets = 1;
a1f1c21c
LC		 6025
6026 if (n_match_sets > wiphy->max_match_sets)
256da02d 6027 return ERR_PTR(-EINVAL);
a1f1c21c 6028
256da02d
LC		 6029 if (attrs[NL80211_ATTR_IE])
6030 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6031 else
6032 ie_len = 0;
6033
5a865bad 6034 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6035 return ERR_PTR(-EINVAL);
c10841ca 6036
807f8a8c 6037 request = kzalloc(sizeof(*request)
a2cd43c5 6038 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6039 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6040 + sizeof(*request->channels) * n_channels
807f8a8c 6041 + ie_len, GFP_KERNEL);
256da02d
LC		 6042 if (!request)
6043 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6044
6045 if (n_ssids)
6046 request->ssids = (void *)&request->channels[n_channels];
6047 request->n_ssids = n_ssids;
6048 if (ie_len) {
13874e4b 6049 if (n_ssids)
807f8a8c
LC		 6050 request->ie = (void *)(request->ssids + n_ssids);
6051 else
6052 request->ie = (void *)(request->channels + n_channels);
6053 }
6054
a1f1c21c
LC		 6055 if (n_match_sets) {
6056 if (request->ie)
6057 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6058 else if (n_ssids)
a1f1c21c
LC		 6059 request->match_sets =
6060 (void *)(request->ssids + n_ssids);
6061 else
6062 request->match_sets =
6063 (void *)(request->channels + n_channels);
6064 }
6065 request->n_match_sets = n_match_sets;
6066
807f8a8c 6067 i = 0;
256da02d 6068 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6069 /* user specified, bail out if channel not found */
6070 nla_for_each_nested(attr,
256da02d 6071 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6072 tmp) {
6073 struct ieee80211_channel *chan;
6074
6075 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6076
6077 if (!chan) {
6078 err = -EINVAL;
6079 goto out_free;
6080 }
6081
6082 /* ignore disabled channels */
6083 if (chan->flags & IEEE80211_CHAN_DISABLED)
6084 continue;
6085
6086 request->channels[i] = chan;
6087 i++;
6088 }
6089 } else {
6090 /* all channels */
6091 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6092 int j;
6093 if (!wiphy->bands[band])
6094 continue;
6095 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6096 struct ieee80211_channel *chan;
6097
6098 chan = &wiphy->bands[band]->channels[j];
6099
6100 if (chan->flags & IEEE80211_CHAN_DISABLED)
6101 continue;
6102
6103 request->channels[i] = chan;
6104 i++;
6105 }
6106 }
6107 }
6108
6109 if (!i) {
6110 err = -EINVAL;
6111 goto out_free;
6112 }
6113
6114 request->n_channels = i;
6115
6116 i = 0;
13874e4b 6117 if (n_ssids) {
256da02d 6118 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6119 tmp) {
57a27e1d 6120 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6121 err = -EINVAL;
6122 goto out_free;
6123 }
57a27e1d 6124 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6125 memcpy(request->ssids[i].ssid, nla_data(attr),
6126 nla_len(attr));
807f8a8c
LC		 6127 i++;
6128 }
6129 }
6130
a1f1c21c 6131 i = 0;
256da02d 6132 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6133 nla_for_each_nested(attr,
256da02d 6134 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6135 tmp) {
88e920b4 6136 struct nlattr *ssid, *rssi;
a1f1c21c 6137
ae811e21
JB		 6138 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6139 nla_data(attr), nla_len(attr),
6140 nl80211_match_policy);
6141 if (err)
6142 goto out_free;
4a4ab0d7 6143 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6144 if (ssid) {
ea73cbce
JB		 6145 if (WARN_ON(i >= n_match_sets)) {
6146 /* this indicates a programming error,
6147 * the loop above should have verified
6148 * things properly
6149 */
6150 err = -EINVAL;
6151 goto out_free;
6152 }
6153
a1f1c21c
LC		 6154 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6155 err = -EINVAL;
6156 goto out_free;
6157 }
6158 memcpy(request->match_sets[i].ssid.ssid,
6159 nla_data(ssid), nla_len(ssid));
6160 request->match_sets[i].ssid.ssid_len =
6161 nla_len(ssid);
ea73cbce
JB		 6162 /* special attribute - old implemenation w/a */
6163 request->match_sets[i].rssi_thold =
6164 default_match_rssi;
6165 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6166 if (rssi)
6167 request->match_sets[i].rssi_thold =
6168 nla_get_s32(rssi);
a1f1c21c
LC		 6169 }
6170 i++;
6171 }
ea73cbce
JB		 6172
6173 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6174 if (i == 0 && n_match_sets)
ea73cbce
JB		 6175 request->match_sets[0].rssi_thold = default_match_rssi;
6176
6177 request->min_rssi_thold = INT_MAX;
6178 for (i = 0; i < n_match_sets; i++)
6179 request->min_rssi_thold =
6180 min(request->match_sets[i].rssi_thold,
6181 request->min_rssi_thold);
6182 } else {
6183 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6184 }
6185
9900e484
JB		 6186 if (ie_len) {
6187 request->ie_len = ie_len;
807f8a8c 6188 memcpy((void *)request->ie,
256da02d 6189 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6190 request->ie_len);
6191 }
6192
256da02d 6193 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6194 request->flags = nla_get_u32(
256da02d 6195 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6196 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6197 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6198 err = -EOPNOTSUPP;
6199 goto out_free;
6200 }
ad2b26ab
JB		 6201
6202 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6203 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6204
6205 if (!wdev) /* must be net-detect */
6206 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6207
6208 if (!(wiphy->features & flg)) {
6209 err = -EOPNOTSUPP;
6210 goto out_free;
6211 }
6212
6213 if (wdev && wdev->current_bss) {
6214 err = -EOPNOTSUPP;
6215 goto out_free;
6216 }
6217
6218 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6219 request->mac_addr_mask);
6220 if (err)
6221 goto out_free;
6222 }
46856bbf 6223 }
ed473771 6224
9c748934
LC		 6225 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6226 request->delay =
6227 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6228
bbe6ad6d 6229 request->interval = interval;
15d6030b 6230 request->scan_start = jiffies;
807f8a8c 6231
256da02d 6232 return request;
807f8a8c
LC		 6233
6234out_free:
6235 kfree(request);
256da02d
LC		 6236 return ERR_PTR(err);
6237}
6238
6239static int nl80211_start_sched_scan(struct sk_buff *skb,
6240 struct genl_info *info)
6241{
6242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6243 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6244 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6245 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6246 int err;
6247
6248 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6249 !rdev->ops->sched_scan_start)
6250 return -EOPNOTSUPP;
6251
6252 if (rdev->sched_scan_req)
6253 return -EINPROGRESS;
6254
31a60ed1
JR		 6255 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6256 info->attrs);
6257
6258 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6259 if (err)
6260 goto out_err;
6261
31a60ed1 6262 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6263 if (err)
6264 goto out_free;
6265
31a60ed1
JR		 6266 sched_scan_req->dev = dev;
6267 sched_scan_req->wiphy = &rdev->wiphy;
6268
93a1e86c
JR		 6269 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6270 sched_scan_req->owner_nlportid = info->snd_portid;
6271
31a60ed1 6272 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6273
6274 nl80211_send_sched_scan(rdev, dev,
6275 NL80211_CMD_START_SCHED_SCAN);
6276 return 0;
6277
6278out_free:
31a60ed1 6279 kfree(sched_scan_req);
256da02d 6280out_err:
807f8a8c
LC		 6281 return err;
6282}
6283
6284static int nl80211_stop_sched_scan(struct sk_buff *skb,
6285 struct genl_info *info)
6286{
6287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6288
6289 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6290 !rdev->ops->sched_scan_stop)
6291 return -EOPNOTSUPP;
6292
5fe231e8 6293 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6294}
6295
04f39047
SW		 6296static int nl80211_start_radar_detection(struct sk_buff *skb,
6297 struct genl_info *info)
6298{
6299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6300 struct net_device *dev = info->user_ptr[1];
6301 struct wireless_dev *wdev = dev->ieee80211_ptr;
6302 struct cfg80211_chan_def chandef;
55f7435c 6303 enum nl80211_dfs_regions dfs_region;
31559f35 6304 unsigned int cac_time_ms;
04f39047
SW		 6305 int err;
6306
55f7435c
LR		 6307 dfs_region = reg_get_dfs_region(wdev->wiphy);
6308 if (dfs_region == NL80211_DFS_UNSET)
6309 return -EINVAL;
6310
04f39047
SW		 6311 err = nl80211_parse_chandef(rdev, info, &chandef);
6312 if (err)
6313 return err;
6314
ff311bc1
SW		 6315 if (netif_carrier_ok(dev))
6316 return -EBUSY;
6317
04f39047
SW		 6318 if (wdev->cac_started)
6319 return -EBUSY;
6320
2beb6dab 6321 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6322 wdev->iftype);
04f39047
SW		 6323 if (err < 0)
6324 return err;
6325
6326 if (err == 0)
6327 return -EINVAL;
6328
fe7c3a1f 6329 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6330 return -EINVAL;
6331
6332 if (!rdev->ops->start_radar_detection)
6333 return -EOPNOTSUPP;
6334
31559f35
JD		 6335 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6336 if (WARN_ON(!cac_time_ms))
6337 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6338
6339 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6340 cac_time_ms);
04f39047 6341 if (!err) {
9e0e2961 6342 wdev->chandef = chandef;
04f39047
SW		 6343 wdev->cac_started = true;
6344 wdev->cac_start_time = jiffies;
31559f35 6345 wdev->cac_time_ms = cac_time_ms;
04f39047 6346 }
04f39047
SW		 6347 return err;
6348}
6349
16ef1fe2
SW		 6350static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6351{
6352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6353 struct net_device *dev = info->user_ptr[1];
6354 struct wireless_dev *wdev = dev->ieee80211_ptr;
6355 struct cfg80211_csa_settings params;
6356 /* csa_attrs is defined static to avoid waste of stack size - this
6357 * function is called under RTNL lock, so this should not be a problem.
6358 */
6359 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6360 int err;
ee4bc9e7 6361 bool need_new_beacon = false;
9a774c78 6362 int len, i;
252e07ca 6363 u32 cs_count;
16ef1fe2
SW		 6364
6365 if (!rdev->ops->channel_switch ||
6366 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6367 return -EOPNOTSUPP;
6368
ee4bc9e7
SW		 6369 switch (dev->ieee80211_ptr->iftype) {
6370 case NL80211_IFTYPE_AP:
6371 case NL80211_IFTYPE_P2P_GO:
6372 need_new_beacon = true;
6373
6374 /* useless if AP is not running */
6375 if (!wdev->beacon_interval)
1ff79dfa 6376 return -ENOTCONN;
ee4bc9e7
SW		 6377 break;
6378 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6379 if (!wdev->ssid_len)
6380 return -ENOTCONN;
6381 break;
c6da674a 6382 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6383 if (!wdev->mesh_id_len)
6384 return -ENOTCONN;
ee4bc9e7
SW		 6385 break;
6386 default:
16ef1fe2 6387 return -EOPNOTSUPP;
ee4bc9e7 6388 }
16ef1fe2
SW		 6389
6390 memset(&params, 0, sizeof(params));
6391
6392 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6393 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6394 return -EINVAL;
6395
6396 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6397 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6398 return -EINVAL;
6399
252e07ca
LC		 6400 /* Even though the attribute is u32, the specification says
6401 * u8, so let's make sure we don't overflow.
6402 */
6403 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6404 if (cs_count > 255)
6405 return -EINVAL;
6406
6407 params.count = cs_count;
16ef1fe2 6408
ee4bc9e7
SW		 6409 if (!need_new_beacon)
6410 goto skip_beacons;
6411
16ef1fe2
SW		 6412 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6413 if (err)
6414 return err;
6415
6416 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6417 info->attrs[NL80211_ATTR_CSA_IES],
6418 nl80211_policy);
6419 if (err)
6420 return err;
6421
6422 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6423 if (err)
6424 return err;
6425
6426 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6427 return -EINVAL;
6428
9a774c78
AO		 6429 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6430 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6431 return -EINVAL;
6432
9a774c78
AO		 6433 params.n_counter_offsets_beacon = len / sizeof(u16);
6434 if (rdev->wiphy.max_num_csa_counters &&
6435 (params.n_counter_offsets_beacon >
6436 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6437 return -EINVAL;
6438
9a774c78
AO		 6439 params.counter_offsets_beacon =
6440 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6441
6442 /* sanity checks - counters should fit and be the same */
6443 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6444 u16 offset = params.counter_offsets_beacon[i];
6445
6446 if (offset >= params.beacon_csa.tail_len)
6447 return -EINVAL;
6448
6449 if (params.beacon_csa.tail[offset] != params.count)
6450 return -EINVAL;
6451 }
6452
16ef1fe2 6453 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6454 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6455 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6456 return -EINVAL;
6457
9a774c78
AO		 6458 params.n_counter_offsets_presp = len / sizeof(u16);
6459 if (rdev->wiphy.max_num_csa_counters &&
6460 (params.n_counter_offsets_beacon >
6461 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6462 return -EINVAL;
9a774c78
AO		 6463
6464 params.counter_offsets_presp =
6465 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6466
6467 /* sanity checks - counters should fit and be the same */
6468 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6469 u16 offset = params.counter_offsets_presp[i];
6470
6471 if (offset >= params.beacon_csa.probe_resp_len)
6472 return -EINVAL;
6473
6474 if (params.beacon_csa.probe_resp[offset] !=
6475 params.count)
6476 return -EINVAL;
6477 }
16ef1fe2
SW		 6478 }
6479
ee4bc9e7 6480skip_beacons:
16ef1fe2
SW		 6481 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6482 if (err)
6483 return err;
6484
174e0cd2
IP		 6485 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6486 wdev->iftype))
16ef1fe2
SW		 6487 return -EINVAL;
6488
2beb6dab
LC		 6489 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6490 &params.chandef,
6491 wdev->iftype);
6492 if (err < 0)
6493 return err;
6494
dcc6c2f5 6495 if (err > 0)
2beb6dab 6496 params.radar_required = true;
16ef1fe2 6497
16ef1fe2
SW		 6498 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6499 params.block_tx = true;
6500
c56589ed
SW		 6501 wdev_lock(wdev);
6502 err = rdev_channel_switch(rdev, dev, &params);
6503 wdev_unlock(wdev);
6504
6505 return err;
16ef1fe2
SW		 6506}
6507
9720bb3a
JB		 6508static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6509 u32 seq, int flags,
2a519311 6510 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6511 struct wireless_dev *wdev,
6512 struct cfg80211_internal_bss *intbss)
2a519311 6513{
48ab905d 6514 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6515 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6516 void *hdr;
6517 struct nlattr *bss;
48ab905d
JB		 6518
6519 ASSERT_WDEV_LOCK(wdev);
2a519311 6520
15e47304 6521 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6522 NL80211_CMD_NEW_SCAN_RESULTS);
6523 if (!hdr)
6524 return -1;
6525
9720bb3a
JB		 6526 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6527
97990a06
JB		 6528 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6529 goto nla_put_failure;
6530 if (wdev->netdev &&
9360ffd1
DM		 6531 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6532 goto nla_put_failure;
97990a06
JB		 6533 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6534 goto nla_put_failure;
2a519311
JB		 6535
6536 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6537 if (!bss)
6538 goto nla_put_failure;
9360ffd1 6539 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6540 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6541 goto nla_put_failure;
9caf0364
JB		 6542
6543 rcu_read_lock();
0e227084
JB		 6544 /* indicate whether we have probe response data or not */
6545 if (rcu_access_pointer(res->proberesp_ies) &&
6546 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6547 goto fail_unlock_rcu;
6548
6549 /* this pointer prefers to be pointed to probe response data
6550 * but is always valid
6551 */
9caf0364 6552 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6553 if (ies) {
6554 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6555 goto fail_unlock_rcu;
8cef2c9d
JB		 6556 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6557 ies->len, ies->data))
6558 goto fail_unlock_rcu;
9caf0364 6559 }
0e227084
JB		 6560
6561 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6562 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6563 if (ies && ies->from_beacon) {
6564 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6565 goto fail_unlock_rcu;
6566 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6567 ies->len, ies->data))
6568 goto fail_unlock_rcu;
9caf0364
JB		 6569 }
6570 rcu_read_unlock();
6571
9360ffd1
DM		 6572 if (res->beacon_interval &&
6573 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6574 goto nla_put_failure;
6575 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6576 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6577 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6578 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6579 jiffies_to_msecs(jiffies - intbss->ts)))
6580 goto nla_put_failure;
2a519311 6581
77965c97 6582 switch (rdev->wiphy.signal_type) {
2a519311 6583 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6584 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6585 goto nla_put_failure;
2a519311
JB		 6586 break;
6587 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6588 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6589 goto nla_put_failure;
2a519311
JB		 6590 break;
6591 default:
6592 break;
6593 }
6594
48ab905d 6595 switch (wdev->iftype) {
074ac8df 6596 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6597 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6598 if (intbss == wdev->current_bss &&
6599 nla_put_u32(msg, NL80211_BSS_STATUS,
6600 NL80211_BSS_STATUS_ASSOCIATED))
6601 goto nla_put_failure;
48ab905d
JB		 6602 break;
6603 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6604 if (intbss == wdev->current_bss &&
6605 nla_put_u32(msg, NL80211_BSS_STATUS,
6606 NL80211_BSS_STATUS_IBSS_JOINED))
6607 goto nla_put_failure;
48ab905d
JB		 6608 break;
6609 default:
6610 break;
6611 }
6612
2a519311
JB		 6613 nla_nest_end(msg, bss);
6614
053c095a
JB		 6615 genlmsg_end(msg, hdr);
6616 return 0;
2a519311 6617
8cef2c9d
JB		 6618 fail_unlock_rcu:
6619 rcu_read_unlock();
2a519311
JB		 6620 nla_put_failure:
6621 genlmsg_cancel(msg, hdr);
6622 return -EMSGSIZE;
6623}
6624
97990a06 6625static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6626{
48ab905d 6627 struct cfg80211_registered_device *rdev;
2a519311 6628 struct cfg80211_internal_bss *scan;
48ab905d 6629 struct wireless_dev *wdev;
97990a06 6630 int start = cb->args[2], idx = 0;
2a519311
JB		 6631 int err;
6632
97990a06 6633 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6634 if (err)
6635 return err;
2a519311 6636
48ab905d
JB		 6637 wdev_lock(wdev);
6638 spin_lock_bh(&rdev->bss_lock);
6639 cfg80211_bss_expire(rdev);
6640
9720bb3a
JB		 6641 cb->seq = rdev->bss_generation;
6642
48ab905d 6643 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6644 if (++idx <= start)
6645 continue;
9720bb3a 6646 if (nl80211_send_bss(skb, cb,
2a519311 6647 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6648 rdev, wdev, scan) < 0) {
2a519311 6649 idx--;
67748893 6650 break;
2a519311
JB		 6651 }
6652 }
6653
48ab905d
JB		 6654 spin_unlock_bh(&rdev->bss_lock);
6655 wdev_unlock(wdev);
2a519311 6656
97990a06
JB		 6657 cb->args[2] = idx;
6658 nl80211_finish_wdev_dump(rdev);
2a519311 6659
67748893 6660 return skb->len;
2a519311
JB		 6661}
6662
15e47304 6663static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6664 int flags, struct net_device *dev,
6665 bool allow_radio_stats,
6666 struct survey_info *survey)
61fa713c
HS		 6667{
6668 void *hdr;
6669 struct nlattr *infoattr;
6670
11f78ac3
JB		 6671 /* skip radio stats if userspace didn't request them */
6672 if (!survey->channel && !allow_radio_stats)
6673 return 0;
6674
15e47304 6675 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6676 NL80211_CMD_NEW_SURVEY_RESULTS);
6677 if (!hdr)
6678 return -ENOMEM;
6679
9360ffd1
DM		 6680 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6681 goto nla_put_failure;
61fa713c
HS		 6682
6683 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6684 if (!infoattr)
6685 goto nla_put_failure;
6686
11f78ac3
JB		 6687 if (survey->channel &&
6688 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6689 survey->channel->center_freq))
6690 goto nla_put_failure;
6691
6692 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6693 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6694 goto nla_put_failure;
6695 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6696 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6697 goto nla_put_failure;
4ed20beb
JB		 6698 if ((survey->filled & SURVEY_INFO_TIME) &&
6699 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6700 survey->time))
9360ffd1 6701 goto nla_put_failure;
4ed20beb
JB		 6702 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6703 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6704 survey->time_busy))
9360ffd1 6705 goto nla_put_failure;
4ed20beb
JB		 6706 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6707 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6708 survey->time_ext_busy))
9360ffd1 6709 goto nla_put_failure;
4ed20beb
JB		 6710 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6711 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6712 survey->time_rx))
9360ffd1 6713 goto nla_put_failure;
4ed20beb
JB		 6714 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6715 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6716 survey->time_tx))
9360ffd1 6717 goto nla_put_failure;
052536ab
JB		 6718 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6719 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6720 survey->time_scan))
6721 goto nla_put_failure;
61fa713c
HS		 6722
6723 nla_nest_end(msg, infoattr);
6724
053c095a
JB		 6725 genlmsg_end(msg, hdr);
6726 return 0;
61fa713c
HS		 6727
6728 nla_put_failure:
6729 genlmsg_cancel(msg, hdr);
6730 return -EMSGSIZE;
6731}
6732
11f78ac3 6733static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6734{
6735 struct survey_info survey;
1b8ec87a 6736 struct cfg80211_registered_device *rdev;
97990a06
JB		 6737 struct wireless_dev *wdev;
6738 int survey_idx = cb->args[2];
61fa713c 6739 int res;
11f78ac3 6740 bool radio_stats;
61fa713c 6741
1b8ec87a 6742 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6743 if (res)
6744 return res;
61fa713c 6745
11f78ac3
JB		 6746 /* prepare_wdev_dump parsed the attributes */
6747 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6748
97990a06
JB		 6749 if (!wdev->netdev) {
6750 res = -EINVAL;
6751 goto out_err;
6752 }
6753
1b8ec87a 6754 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6755 res = -EOPNOTSUPP;
6756 goto out_err;
6757 }
6758
6759 while (1) {
1b8ec87a 6760 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6761 if (res == -ENOENT)
6762 break;
6763 if (res)
6764 goto out_err;
6765
11f78ac3
JB		 6766 /* don't send disabled channels, but do send non-channel data */
6767 if (survey.channel &&
6768 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6769 survey_idx++;
6770 continue;
6771 }
6772
61fa713c 6773 if (nl80211_send_survey(skb,
15e47304 6774 NETLINK_CB(cb->skb).portid,
61fa713c 6775 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6776 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6777 goto out;
6778 survey_idx++;
6779 }
6780
6781 out:
97990a06 6782 cb->args[2] = survey_idx;
61fa713c
HS		 6783 res = skb->len;
6784 out_err:
1b8ec87a 6785 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6786 return res;
6787}
6788
b23aa676
SO		 6789static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6790{
6791 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6792 NL80211_WPA_VERSION_2));
6793}
6794
636a5d36
JM		 6795static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6796{
4c476991
JB		 6797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6798 struct net_device *dev = info->user_ptr[1];
19957bb3 6799 struct ieee80211_channel *chan;
e39e5b5e
JM		 6800 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6801 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6802 enum nl80211_auth_type auth_type;
fffd0934 6803 struct key_parse key;
d5cdfacb 6804 bool local_state_change;
636a5d36 6805
f4a11bb0
JB		 6806 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6807 return -EINVAL;
6808
6809 if (!info->attrs[NL80211_ATTR_MAC])
6810 return -EINVAL;
6811
1778092e
JM		 6812 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6813 return -EINVAL;
6814
19957bb3
JB		 6815 if (!info->attrs[NL80211_ATTR_SSID])
6816 return -EINVAL;
6817
6818 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6819 return -EINVAL;
6820
fffd0934
JB		 6821 err = nl80211_parse_key(info, &key);
6822 if (err)
6823 return err;
6824
6825 if (key.idx >= 0) {
e31b8213
JB		 6826 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6827 return -EINVAL;
fffd0934
JB		 6828 if (!key.p.key || !key.p.key_len)
6829 return -EINVAL;
6830 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6831 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6832 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6833 key.p.key_len != WLAN_KEY_LEN_WEP104))
6834 return -EINVAL;
6835 if (key.idx > 4)
6836 return -EINVAL;
6837 } else {
6838 key.p.key_len = 0;
6839 key.p.key = NULL;
6840 }
6841
afea0b7a
JB		 6842 if (key.idx >= 0) {
6843 int i;
6844 bool ok = false;
6845 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6846 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6847 ok = true;
6848 break;
6849 }
6850 }
4c476991
JB		 6851 if (!ok)
6852 return -EINVAL;
afea0b7a
JB		 6853 }
6854
4c476991
JB		 6855 if (!rdev->ops->auth)
6856 return -EOPNOTSUPP;
636a5d36 6857
074ac8df 6858 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6859 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6860 return -EOPNOTSUPP;
eec60b03 6861
19957bb3 6862 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6863 chan = nl80211_get_valid_chan(&rdev->wiphy,
6864 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6865 if (!chan)
4c476991 6866 return -EINVAL;
636a5d36 6867
19957bb3
JB		 6868 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6869 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6870
6871 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6872 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6873 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6874 }
6875
19957bb3 6876 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6877 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6878 return -EINVAL;
636a5d36 6879
e39e5b5e
JM		 6880 if (auth_type == NL80211_AUTHTYPE_SAE &&
6881 !info->attrs[NL80211_ATTR_SAE_DATA])
6882 return -EINVAL;
6883
6884 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6885 if (auth_type != NL80211_AUTHTYPE_SAE)
6886 return -EINVAL;
6887 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6888 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6889 /* need to include at least Auth Transaction and Status Code */
6890 if (sae_data_len < 4)
6891 return -EINVAL;
6892 }
6893
d5cdfacb
JM		 6894 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6895
95de817b
JB		 6896 /*
6897 * Since we no longer track auth state, ignore
6898 * requests to only change local state.
6899 */
6900 if (local_state_change)
6901 return 0;
6902
91bf9b26
JB		 6903 wdev_lock(dev->ieee80211_ptr);
6904 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6905 ssid, ssid_len, ie, ie_len,
6906 key.p.key, key.p.key_len, key.idx,
6907 sae_data, sae_data_len);
6908 wdev_unlock(dev->ieee80211_ptr);
6909 return err;
636a5d36
JM		 6910}
6911
c0692b8f
JB		 6912static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6913 struct genl_info *info,
3dc27d25
JB		 6914 struct cfg80211_crypto_settings *settings,
6915 int cipher_limit)
b23aa676 6916{
c0b2bbd8
JB		 6917 memset(settings, 0, sizeof(*settings));
6918
b23aa676
SO		 6919 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6920
c0692b8f
JB		 6921 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6922 u16 proto;
6923 proto = nla_get_u16(
6924 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6925 settings->control_port_ethertype = cpu_to_be16(proto);
6926 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6927 proto != ETH_P_PAE)
6928 return -EINVAL;
6929 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6930 settings->control_port_no_encrypt = true;
6931 } else
6932 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6933
b23aa676
SO		 6934 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6935 void *data;
6936 int len, i;
6937
6938 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6939 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6940 settings->n_ciphers_pairwise = len / sizeof(u32);
6941
6942 if (len % sizeof(u32))
6943 return -EINVAL;
6944
3dc27d25 6945 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6946 return -EINVAL;
6947
6948 memcpy(settings->ciphers_pairwise, data, len);
6949
6950 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6951 if (!cfg80211_supported_cipher_suite(
6952 &rdev->wiphy,
b23aa676
SO		 6953 settings->ciphers_pairwise[i]))
6954 return -EINVAL;
6955 }
6956
6957 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6958 settings->cipher_group =
6959 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6960 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6961 settings->cipher_group))
b23aa676
SO		 6962 return -EINVAL;
6963 }
6964
6965 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6966 settings->wpa_versions =
6967 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6968 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6969 return -EINVAL;
6970 }
6971
6972 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6973 void *data;
6d30240e 6974 int len;
b23aa676
SO		 6975
6976 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6977 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6978 settings->n_akm_suites = len / sizeof(u32);
6979
6980 if (len % sizeof(u32))
6981 return -EINVAL;
6982
1b9ca027
JM		 6983 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6984 return -EINVAL;
6985
b23aa676 6986 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6987 }
6988
6989 return 0;
6990}
6991
636a5d36
JM		 6992static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6993{
4c476991
JB		 6994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6995 struct net_device *dev = info->user_ptr[1];
f444de05 6996 struct ieee80211_channel *chan;
f62fab73
JB		 6997 struct cfg80211_assoc_request req = {};
6998 const u8 *bssid, *ssid;
6999 int err, ssid_len = 0;
636a5d36 7000
f4a11bb0
JB		 7001 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7002 return -EINVAL;
7003
7004 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 7005 !info->attrs[NL80211_ATTR_SSID] ||
7006 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 7007 return -EINVAL;
7008
4c476991
JB		 7009 if (!rdev->ops->assoc)
7010 return -EOPNOTSUPP;
636a5d36 7011
074ac8df 7012 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7013 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7014 return -EOPNOTSUPP;
eec60b03 7015
19957bb3 7016 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7017
664834de
JM		 7018 chan = nl80211_get_valid_chan(&rdev->wiphy,
7019 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7020 if (!chan)
4c476991 7021 return -EINVAL;
636a5d36 7022
19957bb3
JB		 7023 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7024 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7025
7026 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7027 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7028 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7029 }
7030
dc6382ce 7031 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7032 enum nl80211_mfp mfp =
dc6382ce 7033 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7034 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7035 req.use_mfp = true;
4c476991
JB		 7036 else if (mfp != NL80211_MFP_NO)
7037 return -EINVAL;
dc6382ce
JM		 7038 }
7039
3e5d7649 7040 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7041 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7042
7e7c8926 7043 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7044 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7045
7046 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7047 memcpy(&req.ht_capa_mask,
7048 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7049 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7050
7051 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7052 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7053 return -EINVAL;
f62fab73
JB		 7054 memcpy(&req.ht_capa,
7055 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7056 sizeof(req.ht_capa));
7e7c8926
BG		 7057 }
7058
ee2aca34 7059 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7060 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7061
7062 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7063 memcpy(&req.vht_capa_mask,
7064 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7065 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7066
7067 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7068 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7069 return -EINVAL;
f62fab73
JB		 7070 memcpy(&req.vht_capa,
7071 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7072 sizeof(req.vht_capa));
ee2aca34
JB		 7073 }
7074
bab5ab7d
AK		 7075 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7076 if (!(rdev->wiphy.features &
7077 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7078 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7079 return -EINVAL;
7080 req.flags |= ASSOC_REQ_USE_RRM;
7081 }
7082
f62fab73 7083 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7084 if (!err) {
7085 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7086 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7087 ssid, ssid_len, &req);
91bf9b26
JB		 7088 wdev_unlock(dev->ieee80211_ptr);
7089 }
636a5d36 7090
636a5d36
JM		 7091 return err;
7092}
7093
7094static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7095{
4c476991
JB		 7096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7097 struct net_device *dev = info->user_ptr[1];
19957bb3 7098 const u8 *ie = NULL, *bssid;
91bf9b26 7099 int ie_len = 0, err;
19957bb3 7100 u16 reason_code;
d5cdfacb 7101 bool local_state_change;
636a5d36 7102
f4a11bb0
JB		 7103 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7104 return -EINVAL;
7105
7106 if (!info->attrs[NL80211_ATTR_MAC])
7107 return -EINVAL;
7108
7109 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7110 return -EINVAL;
7111
4c476991
JB		 7112 if (!rdev->ops->deauth)
7113 return -EOPNOTSUPP;
636a5d36 7114
074ac8df 7115 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7116 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7117 return -EOPNOTSUPP;
eec60b03 7118
19957bb3 7119 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7120
19957bb3
JB		 7121 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7122 if (reason_code == 0) {
f4a11bb0 7123 /* Reason Code 0 is reserved */
4c476991 7124 return -EINVAL;
255e737e 7125 }
636a5d36
JM		 7126
7127 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7128 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7129 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7130 }
7131
d5cdfacb
JM		 7132 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7133
91bf9b26
JB		 7134 wdev_lock(dev->ieee80211_ptr);
7135 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7136 local_state_change);
7137 wdev_unlock(dev->ieee80211_ptr);
7138 return err;
636a5d36
JM		 7139}
7140
7141static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7142{
4c476991
JB		 7143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7144 struct net_device *dev = info->user_ptr[1];
19957bb3 7145 const u8 *ie = NULL, *bssid;
91bf9b26 7146 int ie_len = 0, err;
19957bb3 7147 u16 reason_code;
d5cdfacb 7148 bool local_state_change;
636a5d36 7149
f4a11bb0
JB		 7150 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7151 return -EINVAL;
7152
7153 if (!info->attrs[NL80211_ATTR_MAC])
7154 return -EINVAL;
7155
7156 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7157 return -EINVAL;
7158
4c476991
JB		 7159 if (!rdev->ops->disassoc)
7160 return -EOPNOTSUPP;
636a5d36 7161
074ac8df 7162 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7163 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7164 return -EOPNOTSUPP;
eec60b03 7165
19957bb3 7166 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7167
19957bb3
JB		 7168 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7169 if (reason_code == 0) {
f4a11bb0 7170 /* Reason Code 0 is reserved */
4c476991 7171 return -EINVAL;
255e737e 7172 }
636a5d36
JM		 7173
7174 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7175 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7176 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7177 }
7178
d5cdfacb
JM		 7179 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7180
91bf9b26
JB		 7181 wdev_lock(dev->ieee80211_ptr);
7182 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7183 local_state_change);
7184 wdev_unlock(dev->ieee80211_ptr);
7185 return err;
636a5d36
JM		 7186}
7187
dd5b4cc7
FF		 7188static bool
7189nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7190 int mcast_rate[IEEE80211_NUM_BANDS],
7191 int rateval)
7192{
7193 struct wiphy *wiphy = &rdev->wiphy;
7194 bool found = false;
7195 int band, i;
7196
7197 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7198 struct ieee80211_supported_band *sband;
7199
7200 sband = wiphy->bands[band];
7201 if (!sband)
7202 continue;
7203
7204 for (i = 0; i < sband->n_bitrates; i++) {
7205 if (sband->bitrates[i].bitrate == rateval) {
7206 mcast_rate[band] = i + 1;
7207 found = true;
7208 break;
7209 }
7210 }
7211 }
7212
7213 return found;
7214}
7215
04a773ad
JB		 7216static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7217{
4c476991
JB		 7218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7219 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7220 struct cfg80211_ibss_params ibss;
7221 struct wiphy *wiphy;
fffd0934 7222 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7223 int err;
7224
8e30bc55
JB		 7225 memset(&ibss, 0, sizeof(ibss));
7226
04a773ad
JB		 7227 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7228 return -EINVAL;
7229
683b6d3b 7230 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7231 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7232 return -EINVAL;
7233
8e30bc55
JB		 7234 ibss.beacon_interval = 100;
7235
7236 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7237 ibss.beacon_interval =
7238 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7239 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7240 return -EINVAL;
7241 }
7242
4c476991
JB		 7243 if (!rdev->ops->join_ibss)
7244 return -EOPNOTSUPP;
04a773ad 7245
4c476991
JB		 7246 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7247 return -EOPNOTSUPP;
04a773ad 7248
79c97e97 7249 wiphy = &rdev->wiphy;
04a773ad 7250
39193498 7251 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7252 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7253
7254 if (!is_valid_ether_addr(ibss.bssid))
7255 return -EINVAL;
7256 }
04a773ad
JB		 7257 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7258 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7259
7260 if (info->attrs[NL80211_ATTR_IE]) {
7261 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7262 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7263 }
7264
683b6d3b
JB		 7265 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7266 if (err)
7267 return err;
04a773ad 7268
174e0cd2
IP		 7269 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7270 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7271 return -EINVAL;
7272
2f301ab2 7273 switch (ibss.chandef.width) {
bf372645
SW		 7274 case NL80211_CHAN_WIDTH_5:
7275 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7276 case NL80211_CHAN_WIDTH_20_NOHT:
7277 break;
7278 case NL80211_CHAN_WIDTH_20:
7279 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7280 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7281 return -EINVAL;
7282 break;
7283 case NL80211_CHAN_WIDTH_80:
7284 case NL80211_CHAN_WIDTH_80P80:
7285 case NL80211_CHAN_WIDTH_160:
7286 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7287 return -EINVAL;
7288 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7289 NL80211_EXT_FEATURE_VHT_IBSS))
7290 return -EINVAL;
7291 break;
2f301ab2 7292 default:
c04d6150 7293 return -EINVAL;
2f301ab2 7294 }
db9c64cf 7295
04a773ad 7296 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7297 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7298
fbd2c8dc
TP		 7299 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7300 u8 *rates =
7301 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7302 int n_rates =
7303 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7304 struct ieee80211_supported_band *sband =
683b6d3b 7305 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7306
34850ab2
JB		 7307 err = ieee80211_get_ratemask(sband, rates, n_rates,
7308 &ibss.basic_rates);
7309 if (err)
7310 return err;
fbd2c8dc 7311 }
dd5b4cc7 7312
803768f5
SW		 7313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7314 memcpy(&ibss.ht_capa_mask,
7315 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7316 sizeof(ibss.ht_capa_mask));
7317
7318 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7319 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7320 return -EINVAL;
7321 memcpy(&ibss.ht_capa,
7322 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7323 sizeof(ibss.ht_capa));
7324 }
7325
dd5b4cc7
FF		 7326 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7327 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7328 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7329 return -EINVAL;
fbd2c8dc 7330
4c476991 7331 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7332 bool no_ht = false;
7333
4c476991 7334 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7335 info->attrs[NL80211_ATTR_KEYS],
7336 &no_ht);
4c476991
JB		 7337 if (IS_ERR(connkeys))
7338 return PTR_ERR(connkeys);
de7044ee 7339
3d9d1d66
JB		 7340 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7341 no_ht) {
de7044ee
SM		 7342 kfree(connkeys);
7343 return -EINVAL;
7344 }
4c476991 7345 }
04a773ad 7346
267335d6
AQ		 7347 ibss.control_port =
7348 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7349
5336fa88
SW		 7350 ibss.userspace_handles_dfs =
7351 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7352
4c476991 7353 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7354 if (err)
b47f610b 7355 kzfree(connkeys);
04a773ad
JB		 7356 return err;
7357}
7358
7359static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7360{
4c476991
JB		 7361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7362 struct net_device *dev = info->user_ptr[1];
04a773ad 7363
4c476991
JB		 7364 if (!rdev->ops->leave_ibss)
7365 return -EOPNOTSUPP;
04a773ad 7366
4c476991
JB		 7367 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7368 return -EOPNOTSUPP;
04a773ad 7369
4c476991 7370 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7371}
7372
f4e583c8
AQ		 7373static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7374{
7375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7376 struct net_device *dev = info->user_ptr[1];
7377 int mcast_rate[IEEE80211_NUM_BANDS];
7378 u32 nla_rate;
7379 int err;
7380
7381 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7382 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7383 return -EOPNOTSUPP;
7384
7385 if (!rdev->ops->set_mcast_rate)
7386 return -EOPNOTSUPP;
7387
7388 memset(mcast_rate, 0, sizeof(mcast_rate));
7389
7390 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7391 return -EINVAL;
7392
7393 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7394 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7395 return -EINVAL;
7396
7397 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7398
7399 return err;
7400}
7401
ad7e718c
JB		 7402static struct sk_buff *
7403__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7404 struct wireless_dev *wdev, int approxlen,
7405 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7406 enum nl80211_attrs attr,
7407 const struct nl80211_vendor_cmd_info *info,
7408 gfp_t gfp)
ad7e718c
JB		 7409{
7410 struct sk_buff *skb;
7411 void *hdr;
7412 struct nlattr *data;
7413
7414 skb = nlmsg_new(approxlen + 100, gfp);
7415 if (!skb)
7416 return NULL;
7417
7418 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7419 if (!hdr) {
7420 kfree_skb(skb);
7421 return NULL;
7422 }
7423
7424 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7425 goto nla_put_failure;
567ffc35
JB		 7426
7427 if (info) {
7428 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7429 info->vendor_id))
7430 goto nla_put_failure;
7431 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7432 info->subcmd))
7433 goto nla_put_failure;
7434 }
7435
6c09e791
AK		 7436 if (wdev) {
7437 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7438 wdev_id(wdev)))
7439 goto nla_put_failure;
7440 if (wdev->netdev &&
7441 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7442 wdev->netdev->ifindex))
7443 goto nla_put_failure;
7444 }
7445
ad7e718c
JB		 7446 data = nla_nest_start(skb, attr);
7447
7448 ((void **)skb->cb)[0] = rdev;
7449 ((void **)skb->cb)[1] = hdr;
7450 ((void **)skb->cb)[2] = data;
7451
7452 return skb;
7453
7454 nla_put_failure:
7455 kfree_skb(skb);
7456 return NULL;
7457}
f4e583c8 7458
e03ad6ea 7459struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7460 struct wireless_dev *wdev,
e03ad6ea
JB		 7461 enum nl80211_commands cmd,
7462 enum nl80211_attrs attr,
7463 int vendor_event_idx,
7464 int approxlen, gfp_t gfp)
7465{
f26cbf40 7466 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7467 const struct nl80211_vendor_cmd_info *info;
7468
7469 switch (cmd) {
7470 case NL80211_CMD_TESTMODE:
7471 if (WARN_ON(vendor_event_idx != -1))
7472 return NULL;
7473 info = NULL;
7474 break;
7475 case NL80211_CMD_VENDOR:
7476 if (WARN_ON(vendor_event_idx < 0 ||
7477 vendor_event_idx >= wiphy->n_vendor_events))
7478 return NULL;
7479 info = &wiphy->vendor_events[vendor_event_idx];
7480 break;
7481 default:
7482 WARN_ON(1);
7483 return NULL;
7484 }
7485
6c09e791 7486 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7487 cmd, attr, info, gfp);
7488}
7489EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7490
7491void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7492{
7493 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7494 void *hdr = ((void **)skb->cb)[1];
7495 struct nlattr *data = ((void **)skb->cb)[2];
7496 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7497
bd8c78e7
JB		 7498 /* clear CB data for netlink core to own from now on */
7499 memset(skb->cb, 0, sizeof(skb->cb));
7500
e03ad6ea
JB		 7501 nla_nest_end(skb, data);
7502 genlmsg_end(skb, hdr);
7503
7504 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7505 mcgrp = NL80211_MCGRP_VENDOR;
7506
7507 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7508 mcgrp, gfp);
7509}
7510EXPORT_SYMBOL(__cfg80211_send_event_skb);
7511
aff89a9b 7512#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7513static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7514{
4c476991 7515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7516 struct wireless_dev *wdev =
7517 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7518 int err;
7519
fc73f11f
DS		 7520 if (!rdev->ops->testmode_cmd)
7521 return -EOPNOTSUPP;
7522
7523 if (IS_ERR(wdev)) {
7524 err = PTR_ERR(wdev);
7525 if (err != -EINVAL)
7526 return err;
7527 wdev = NULL;
7528 } else if (wdev->wiphy != &rdev->wiphy) {
7529 return -EINVAL;
7530 }
7531
aff89a9b
JB		 7532 if (!info->attrs[NL80211_ATTR_TESTDATA])
7533 return -EINVAL;
7534
ad7e718c 7535 rdev->cur_cmd_info = info;
fc73f11f 7536 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7537 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7538 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7539 rdev->cur_cmd_info = NULL;
aff89a9b 7540
aff89a9b
JB		 7541 return err;
7542}
7543
71063f0e
WYG		 7544static int nl80211_testmode_dump(struct sk_buff *skb,
7545 struct netlink_callback *cb)
7546{
00918d33 7547 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7548 int err;
7549 long phy_idx;
7550 void *data = NULL;
7551 int data_len = 0;
7552
5fe231e8
JB		 7553 rtnl_lock();
7554
71063f0e
WYG		 7555 if (cb->args[0]) {
7556 /*
7557 * 0 is a valid index, but not valid for args[0],
7558 * so we need to offset by 1.
7559 */
7560 phy_idx = cb->args[0] - 1;
7561 } else {
7562 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7563 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7564 nl80211_policy);
7565 if (err)
5fe231e8 7566 goto out_err;
00918d33 7567
2bd7e35d
JB		 7568 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7569 nl80211_fam.attrbuf);
7570 if (IS_ERR(rdev)) {
5fe231e8
JB		 7571 err = PTR_ERR(rdev);
7572 goto out_err;
00918d33 7573 }
2bd7e35d
JB		 7574 phy_idx = rdev->wiphy_idx;
7575 rdev = NULL;
2bd7e35d 7576
71063f0e
WYG		 7577 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7578 cb->args[1] =
7579 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7580 }
7581
7582 if (cb->args[1]) {
7583 data = nla_data((void *)cb->args[1]);
7584 data_len = nla_len((void *)cb->args[1]);
7585 }
7586
00918d33
JB		 7587 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7588 if (!rdev) {
5fe231e8
JB		 7589 err = -ENOENT;
7590 goto out_err;
71063f0e 7591 }
71063f0e 7592
00918d33 7593 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7594 err = -EOPNOTSUPP;
7595 goto out_err;
7596 }
7597
7598 while (1) {
15e47304 7599 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7600 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7601 NL80211_CMD_TESTMODE);
7602 struct nlattr *tmdata;
7603
cb35fba3
DC		 7604 if (!hdr)
7605 break;
7606
9360ffd1 7607 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7608 genlmsg_cancel(skb, hdr);
7609 break;
7610 }
7611
7612 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7613 if (!tmdata) {
7614 genlmsg_cancel(skb, hdr);
7615 break;
7616 }
e35e4d28 7617 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7618 nla_nest_end(skb, tmdata);
7619
7620 if (err == -ENOBUFS || err == -ENOENT) {
7621 genlmsg_cancel(skb, hdr);
7622 break;
7623 } else if (err) {
7624 genlmsg_cancel(skb, hdr);
7625 goto out_err;
7626 }
7627
7628 genlmsg_end(skb, hdr);
7629 }
7630
7631 err = skb->len;
7632 /* see above */
7633 cb->args[0] = phy_idx + 1;
7634 out_err:
5fe231e8 7635 rtnl_unlock();
71063f0e
WYG		 7636 return err;
7637}
aff89a9b
JB		 7638#endif
7639
b23aa676
SO		 7640static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7641{
4c476991
JB		 7642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7643 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7644 struct cfg80211_connect_params connect;
7645 struct wiphy *wiphy;
fffd0934 7646 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7647 int err;
7648
7649 memset(&connect, 0, sizeof(connect));
7650
7651 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7652 return -EINVAL;
7653
7654 if (!info->attrs[NL80211_ATTR_SSID] ||
7655 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7656 return -EINVAL;
7657
7658 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7659 connect.auth_type =
7660 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7661 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7662 NL80211_CMD_CONNECT))
b23aa676
SO		 7663 return -EINVAL;
7664 } else
7665 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7666
7667 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7668
c0692b8f 7669 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7670 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7671 if (err)
7672 return err;
b23aa676 7673
074ac8df 7674 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7675 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7676 return -EOPNOTSUPP;
b23aa676 7677
79c97e97 7678 wiphy = &rdev->wiphy;
b23aa676 7679
4486ea98
BS		 7680 connect.bg_scan_period = -1;
7681 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7682 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7683 connect.bg_scan_period =
7684 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7685 }
7686
b23aa676
SO		 7687 if (info->attrs[NL80211_ATTR_MAC])
7688 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7689 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7690 connect.bssid_hint =
7691 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7692 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7693 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7694
7695 if (info->attrs[NL80211_ATTR_IE]) {
7696 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7697 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7698 }
7699
cee00a95
JM		 7700 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7701 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7702 if (connect.mfp != NL80211_MFP_REQUIRED &&
7703 connect.mfp != NL80211_MFP_NO)
7704 return -EINVAL;
7705 } else {
7706 connect.mfp = NL80211_MFP_NO;
7707 }
7708
b23aa676 7709 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7710 connect.channel = nl80211_get_valid_chan(
7711 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7712 if (!connect.channel)
1df4a510
JM		 7713 return -EINVAL;
7714 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7715 connect.channel_hint = nl80211_get_valid_chan(
7716 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7717 if (!connect.channel_hint)
4c476991 7718 return -EINVAL;
b23aa676
SO		 7719 }
7720
fffd0934
JB		 7721 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7722 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7723 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7724 if (IS_ERR(connkeys))
7725 return PTR_ERR(connkeys);
fffd0934
JB		 7726 }
7727
7e7c8926
BG		 7728 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7729 connect.flags |= ASSOC_REQ_DISABLE_HT;
7730
7731 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7732 memcpy(&connect.ht_capa_mask,
7733 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7734 sizeof(connect.ht_capa_mask));
7735
7736 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7737 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7738 kzfree(connkeys);
7e7c8926 7739 return -EINVAL;
b4e4f47e 7740 }
7e7c8926
BG		 7741 memcpy(&connect.ht_capa,
7742 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7743 sizeof(connect.ht_capa));
7744 }
7745
ee2aca34
JB		 7746 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7747 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7748
7749 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7750 memcpy(&connect.vht_capa_mask,
7751 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7752 sizeof(connect.vht_capa_mask));
7753
7754 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7755 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7756 kzfree(connkeys);
ee2aca34
JB		 7757 return -EINVAL;
7758 }
7759 memcpy(&connect.vht_capa,
7760 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7761 sizeof(connect.vht_capa));
7762 }
7763
bab5ab7d
AK		 7764 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7765 if (!(rdev->wiphy.features &
7766 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7767 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7768 return -EINVAL;
7769 connect.flags |= ASSOC_REQ_USE_RRM;
7770 }
7771
83739b03
JB		 7772 wdev_lock(dev->ieee80211_ptr);
7773 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7774 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7775 if (err)
b47f610b 7776 kzfree(connkeys);
b23aa676
SO		 7777 return err;
7778}
7779
7780static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7781{
4c476991
JB		 7782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7783 struct net_device *dev = info->user_ptr[1];
b23aa676 7784 u16 reason;
83739b03 7785 int ret;
b23aa676
SO		 7786
7787 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7788 reason = WLAN_REASON_DEAUTH_LEAVING;
7789 else
7790 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7791
7792 if (reason == 0)
7793 return -EINVAL;
7794
074ac8df 7795 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7796 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7797 return -EOPNOTSUPP;
b23aa676 7798
83739b03
JB		 7799 wdev_lock(dev->ieee80211_ptr);
7800 ret = cfg80211_disconnect(rdev, dev, reason, true);
7801 wdev_unlock(dev->ieee80211_ptr);
7802 return ret;
b23aa676
SO		 7803}
7804
463d0183
JB		 7805static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7806{
4c476991 7807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7808 struct net *net;
7809 int err;
463d0183 7810
4b681c82
VK		 7811 if (info->attrs[NL80211_ATTR_PID]) {
7812 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7813
7814 net = get_net_ns_by_pid(pid);
7815 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7816 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7817
4b681c82
VK		 7818 net = get_net_ns_by_fd(fd);
7819 } else {
7820 return -EINVAL;
7821 }
463d0183 7822
4c476991
JB		 7823 if (IS_ERR(net))
7824 return PTR_ERR(net);
463d0183
JB		 7825
7826 err = 0;
7827
7828 /* check if anything to do */
4c476991
JB		 7829 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7830 err = cfg80211_switch_netns(rdev, net);
463d0183 7831
463d0183 7832 put_net(net);
463d0183
JB		 7833 return err;
7834}
7835
67fbb16b
SO		 7836static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7837{
4c476991 7838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7839 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7840 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7841 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7842 struct cfg80211_pmksa pmksa;
7843
7844 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7845
7846 if (!info->attrs[NL80211_ATTR_MAC])
7847 return -EINVAL;
7848
7849 if (!info->attrs[NL80211_ATTR_PMKID])
7850 return -EINVAL;
7851
67fbb16b
SO		 7852 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7853 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7854
074ac8df 7855 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7856 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7857 return -EOPNOTSUPP;
67fbb16b
SO		 7858
7859 switch (info->genlhdr->cmd) {
7860 case NL80211_CMD_SET_PMKSA:
7861 rdev_ops = rdev->ops->set_pmksa;
7862 break;
7863 case NL80211_CMD_DEL_PMKSA:
7864 rdev_ops = rdev->ops->del_pmksa;
7865 break;
7866 default:
7867 WARN_ON(1);
7868 break;
7869 }
7870
4c476991
JB		 7871 if (!rdev_ops)
7872 return -EOPNOTSUPP;
67fbb16b 7873
4c476991 7874 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7875}
7876
7877static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7878{
4c476991
JB		 7879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7880 struct net_device *dev = info->user_ptr[1];
67fbb16b 7881
074ac8df 7882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7883 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7884 return -EOPNOTSUPP;
67fbb16b 7885
4c476991
JB		 7886 if (!rdev->ops->flush_pmksa)
7887 return -EOPNOTSUPP;
67fbb16b 7888
e35e4d28 7889 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7890}
7891
109086ce
AN		 7892static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7893{
7894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7895 struct net_device *dev = info->user_ptr[1];
7896 u8 action_code, dialog_token;
df942e7b 7897 u32 peer_capability = 0;
109086ce
AN		 7898 u16 status_code;
7899 u8 *peer;
31fa97c5 7900 bool initiator;
109086ce
AN		 7901
7902 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7903 !rdev->ops->tdls_mgmt)
7904 return -EOPNOTSUPP;
7905
7906 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7907 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7908 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7909 !info->attrs[NL80211_ATTR_IE] ||
7910 !info->attrs[NL80211_ATTR_MAC])
7911 return -EINVAL;
7912
7913 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7914 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7915 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7916 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7917 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7918 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7919 peer_capability =
7920 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7921
e35e4d28 7922 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7923 dialog_token, status_code, peer_capability,
31fa97c5 7924 initiator,
e35e4d28
HG		 7925 nla_data(info->attrs[NL80211_ATTR_IE]),
7926 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7927}
7928
7929static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7930{
7931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7932 struct net_device *dev = info->user_ptr[1];
7933 enum nl80211_tdls_operation operation;
7934 u8 *peer;
7935
7936 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7937 !rdev->ops->tdls_oper)
7938 return -EOPNOTSUPP;
7939
7940 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7941 !info->attrs[NL80211_ATTR_MAC])
7942 return -EINVAL;
7943
7944 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7945 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7946
e35e4d28 7947 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7948}
7949
9588bbd5
JM		 7950static int nl80211_remain_on_channel(struct sk_buff *skb,
7951 struct genl_info *info)
7952{
4c476991 7953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7954 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7955 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7956 struct sk_buff *msg;
7957 void *hdr;
7958 u64 cookie;
683b6d3b 7959 u32 duration;
9588bbd5
JM		 7960 int err;
7961
7962 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7963 !info->attrs[NL80211_ATTR_DURATION])
7964 return -EINVAL;
7965
7966 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7967
ebf348fc
JB		 7968 if (!rdev->ops->remain_on_channel ||
7969 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7970 return -EOPNOTSUPP;
7971
9588bbd5 7972 /*
ebf348fc
JB		 7973 * We should be on that channel for at least a minimum amount of
7974 * time (10ms) but no longer than the driver supports.
9588bbd5 7975 */
ebf348fc 7976 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7977 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7978 return -EINVAL;
7979
683b6d3b
JB		 7980 err = nl80211_parse_chandef(rdev, info, &chandef);
7981 if (err)
7982 return err;
9588bbd5
JM		 7983
7984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7985 if (!msg)
7986 return -ENOMEM;
9588bbd5 7987
15e47304 7988 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7989 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7990 if (!hdr) {
7991 err = -ENOBUFS;
9588bbd5
JM		 7992 goto free_msg;
7993 }
7994
683b6d3b
JB		 7995 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7996 duration, &cookie);
9588bbd5
JM		 7997
7998 if (err)
7999 goto free_msg;
8000
9360ffd1
DM		 8001 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8002 goto nla_put_failure;
9588bbd5
JM		 8003
8004 genlmsg_end(msg, hdr);
4c476991
JB		 8005
8006 return genlmsg_reply(msg, info);
9588bbd5
JM		 8007
8008 nla_put_failure:
8009 err = -ENOBUFS;
8010 free_msg:
8011 nlmsg_free(msg);
9588bbd5
JM		 8012 return err;
8013}
8014
8015static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8016 struct genl_info *info)
8017{
4c476991 8018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8019 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8020 u64 cookie;
9588bbd5
JM		 8021
8022 if (!info->attrs[NL80211_ATTR_COOKIE])
8023 return -EINVAL;
8024
4c476991
JB		 8025 if (!rdev->ops->cancel_remain_on_channel)
8026 return -EOPNOTSUPP;
9588bbd5 8027
9588bbd5
JM		 8028 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8029
e35e4d28 8030 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8031}
8032
13ae75b1
JM		 8033static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8034 u8 *rates, u8 rates_len)
8035{
8036 u8 i;
8037 u32 mask = 0;
8038
8039 for (i = 0; i < rates_len; i++) {
8040 int rate = (rates[i] & 0x7f) * 5;
8041 int ridx;
8042 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8043 struct ieee80211_rate *srate =
8044 &sband->bitrates[ridx];
8045 if (rate == srate->bitrate) {
8046 mask |= 1 << ridx;
8047 break;
8048 }
8049 }
8050 if (ridx == sband->n_bitrates)
8051 return 0; /* rate not found */
8052 }
8053
8054 return mask;
8055}
8056
24db78c0
SW		 8057static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8058 u8 *rates, u8 rates_len,
8059 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8060{
8061 u8 i;
8062
8063 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8064
8065 for (i = 0; i < rates_len; i++) {
8066 int ridx, rbit;
8067
8068 ridx = rates[i] / 8;
8069 rbit = BIT(rates[i] % 8);
8070
8071 /* check validity */
910570b5 8072 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8073 return false;
8074
8075 /* check availability */
8076 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8077 mcs[ridx] |= rbit;
8078 else
8079 return false;
8080 }
8081
8082 return true;
8083}
8084
204e35a9
JD		 8085static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8086{
8087 u16 mcs_mask = 0;
8088
8089 switch (vht_mcs_map) {
8090 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8091 break;
8092 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8093 mcs_mask = 0x00FF;
8094 break;
8095 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8096 mcs_mask = 0x01FF;
8097 break;
8098 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8099 mcs_mask = 0x03FF;
8100 break;
8101 default:
8102 break;
8103 }
8104
8105 return mcs_mask;
8106}
8107
8108static void vht_build_mcs_mask(u16 vht_mcs_map,
8109 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8110{
8111 u8 nss;
8112
8113 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8114 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8115 vht_mcs_map >>= 2;
8116 }
8117}
8118
8119static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8120 struct nl80211_txrate_vht *txrate,
8121 u16 mcs[NL80211_VHT_NSS_MAX])
8122{
8123 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8124 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8125 u8 i;
8126
8127 if (!sband->vht_cap.vht_supported)
8128 return false;
8129
8130 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8131
8132 /* Build vht_mcs_mask from VHT capabilities */
8133 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8134
8135 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8136 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8137 mcs[i] = txrate->mcs[i];
8138 else
8139 return false;
8140 }
8141
8142 return true;
8143}
8144
b54452b0 8145static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8146 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8147 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8148 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8149 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8150 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8151 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8152};
8153
8154static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8155 struct genl_info *info)
8156{
8157 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8159 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8160 int rem, i;
8161 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8162 struct nlattr *tx_rates;
8163 struct ieee80211_supported_band *sband;
204e35a9 8164 u16 vht_tx_mcs_map;
13ae75b1 8165
4c476991
JB		 8166 if (!rdev->ops->set_bitrate_mask)
8167 return -EOPNOTSUPP;
13ae75b1
JM		 8168
8169 memset(&mask, 0, sizeof(mask));
8170 /* Default to all rates enabled */
8171 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8172 sband = rdev->wiphy.bands[i];
7869303b
JD		 8173
8174 if (!sband)
8175 continue;
8176
8177 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8178 memcpy(mask.control[i].ht_mcs,
7869303b 8179 sband->ht_cap.mcs.rx_mask,
d1e33e65 8180 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8181
8182 if (!sband->vht_cap.vht_supported)
8183 continue;
8184
8185 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8186 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8187 }
8188
b9243ab0
JD		 8189 /* if no rates are given set it back to the defaults */
8190 if (!info->attrs[NL80211_ATTR_TX_RATES])
8191 goto out;
8192
13ae75b1
JM		 8193 /*
8194 * The nested attribute uses enum nl80211_band as the index. This maps
8195 * directly to the enum ieee80211_band values used in cfg80211.
8196 */
24db78c0 8197 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8198 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8199 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8200 int err;
8201
4c476991
JB		 8202 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8203 return -EINVAL;
13ae75b1 8204 sband = rdev->wiphy.bands[band];
4c476991
JB		 8205 if (sband == NULL)
8206 return -EINVAL;
ae811e21
JB		 8207 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8208 nla_len(tx_rates), nl80211_txattr_policy);
8209 if (err)
8210 return err;
13ae75b1
JM		 8211 if (tb[NL80211_TXRATE_LEGACY]) {
8212 mask.control[band].legacy = rateset_to_mask(
8213 sband,
8214 nla_data(tb[NL80211_TXRATE_LEGACY]),
8215 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8216 if ((mask.control[band].legacy == 0) &&
8217 nla_len(tb[NL80211_TXRATE_LEGACY]))
8218 return -EINVAL;
24db78c0 8219 }
d1e33e65 8220 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8221 if (!ht_rateset_to_mask(
8222 sband,
d1e33e65
JD		 8223 nla_data(tb[NL80211_TXRATE_HT]),
8224 nla_len(tb[NL80211_TXRATE_HT]),
8225 mask.control[band].ht_mcs))
24db78c0
SW		 8226 return -EINVAL;
8227 }
204e35a9
JD		 8228 if (tb[NL80211_TXRATE_VHT]) {
8229 if (!vht_set_mcs_mask(
8230 sband,
8231 nla_data(tb[NL80211_TXRATE_VHT]),
8232 mask.control[band].vht_mcs))
8233 return -EINVAL;
8234 }
0b9323f6
JD		 8235 if (tb[NL80211_TXRATE_GI]) {
8236 mask.control[band].gi =
8237 nla_get_u8(tb[NL80211_TXRATE_GI]);
8238 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8239 return -EINVAL;
8240 }
24db78c0
SW		 8241
8242 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8243 /* don't allow empty legacy rates if HT or VHT
8244 * are not even supported.
8245 */
8246 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8247 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8248 return -EINVAL;
8249
8250 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8251 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8252 goto out;
8253
8254 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8255 if (mask.control[band].vht_mcs[i])
8256 goto out;
24db78c0
SW		 8257
8258 /* legacy and mcs rates may not be both empty */
204e35a9 8259 return -EINVAL;
13ae75b1
JM		 8260 }
8261 }
8262
b9243ab0 8263out:
e35e4d28 8264 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8265}
8266
2e161f78 8267static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8268{
4c476991 8269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8270 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8271 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8272
8273 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8274 return -EINVAL;
8275
2e161f78
JB		 8276 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8277 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8278
71bbc994
JB		 8279 switch (wdev->iftype) {
8280 case NL80211_IFTYPE_STATION:
8281 case NL80211_IFTYPE_ADHOC:
8282 case NL80211_IFTYPE_P2P_CLIENT:
8283 case NL80211_IFTYPE_AP:
8284 case NL80211_IFTYPE_AP_VLAN:
8285 case NL80211_IFTYPE_MESH_POINT:
8286 case NL80211_IFTYPE_P2P_GO:
98104fde 8287 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8288 break;
8289 default:
4c476991 8290 return -EOPNOTSUPP;
71bbc994 8291 }
026331c4
JM		 8292
8293 /* not much point in registering if we can't reply */
4c476991
JB		 8294 if (!rdev->ops->mgmt_tx)
8295 return -EOPNOTSUPP;
026331c4 8296
15e47304 8297 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8298 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8299 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8300}
8301
2e161f78 8302static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8303{
4c476991 8304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8305 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8306 struct cfg80211_chan_def chandef;
026331c4 8307 int err;
d64d373f 8308 void *hdr = NULL;
026331c4 8309 u64 cookie;
e247bd90 8310 struct sk_buff *msg = NULL;
b176e629
AO		 8311 struct cfg80211_mgmt_tx_params params = {
8312 .dont_wait_for_ack =
8313 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8314 };
026331c4 8315
683b6d3b 8316 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8317 return -EINVAL;
8318
4c476991
JB		 8319 if (!rdev->ops->mgmt_tx)
8320 return -EOPNOTSUPP;
026331c4 8321
71bbc994 8322 switch (wdev->iftype) {
ea141b75
AQ		 8323 case NL80211_IFTYPE_P2P_DEVICE:
8324 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8325 return -EINVAL;
71bbc994
JB		 8326 case NL80211_IFTYPE_STATION:
8327 case NL80211_IFTYPE_ADHOC:
8328 case NL80211_IFTYPE_P2P_CLIENT:
8329 case NL80211_IFTYPE_AP:
8330 case NL80211_IFTYPE_AP_VLAN:
8331 case NL80211_IFTYPE_MESH_POINT:
8332 case NL80211_IFTYPE_P2P_GO:
8333 break;
8334 default:
4c476991 8335 return -EOPNOTSUPP;
71bbc994 8336 }
026331c4 8337
f7ca38df 8338 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8339 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8340 return -EINVAL;
b176e629 8341 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8342
8343 /*
8344 * We should wait on the channel for at least a minimum amount
8345 * of time (10ms) but no longer than the driver supports.
8346 */
b176e629
AO		 8347 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8348 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8349 return -EINVAL;
8350
f7ca38df
JB		 8351 }
8352
b176e629 8353 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8354
b176e629 8355 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8356 return -EINVAL;
8357
b176e629 8358 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8359
ea141b75
AQ		 8360 /* get the channel if any has been specified, otherwise pass NULL to
8361 * the driver. The latter will use the current one
8362 */
8363 chandef.chan = NULL;
8364 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8365 err = nl80211_parse_chandef(rdev, info, &chandef);
8366 if (err)
8367 return err;
8368 }
8369
b176e629 8370 if (!chandef.chan && params.offchan)
ea141b75 8371 return -EINVAL;
026331c4 8372
34d22ce2
AO		 8373 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8374 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8375
8376 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8377 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8378 int i;
8379
8380 if (len % sizeof(u16))
8381 return -EINVAL;
8382
8383 params.n_csa_offsets = len / sizeof(u16);
8384 params.csa_offsets =
8385 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8386
8387 /* check that all the offsets fit the frame */
8388 for (i = 0; i < params.n_csa_offsets; i++) {
8389 if (params.csa_offsets[i] >= params.len)
8390 return -EINVAL;
8391 }
8392 }
8393
b176e629 8394 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8396 if (!msg)
8397 return -ENOMEM;
026331c4 8398
15e47304 8399 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8400 NL80211_CMD_FRAME);
cb35fba3
DC		 8401 if (!hdr) {
8402 err = -ENOBUFS;
e247bd90
JB		 8403 goto free_msg;
8404 }
026331c4 8405 }
e247bd90 8406
b176e629
AO		 8407 params.chan = chandef.chan;
8408 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8409 if (err)
8410 goto free_msg;
8411
e247bd90 8412 if (msg) {
9360ffd1
DM		 8413 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8414 goto nla_put_failure;
026331c4 8415
e247bd90
JB		 8416 genlmsg_end(msg, hdr);
8417 return genlmsg_reply(msg, info);
8418 }
8419
8420 return 0;
026331c4
JM		 8421
8422 nla_put_failure:
8423 err = -ENOBUFS;
8424 free_msg:
8425 nlmsg_free(msg);
026331c4
JM		 8426 return err;
8427}
8428
f7ca38df
JB		 8429static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8430{
8431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8432 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8433 u64 cookie;
8434
8435 if (!info->attrs[NL80211_ATTR_COOKIE])
8436 return -EINVAL;
8437
8438 if (!rdev->ops->mgmt_tx_cancel_wait)
8439 return -EOPNOTSUPP;
8440
71bbc994
JB		 8441 switch (wdev->iftype) {
8442 case NL80211_IFTYPE_STATION:
8443 case NL80211_IFTYPE_ADHOC:
8444 case NL80211_IFTYPE_P2P_CLIENT:
8445 case NL80211_IFTYPE_AP:
8446 case NL80211_IFTYPE_AP_VLAN:
8447 case NL80211_IFTYPE_P2P_GO:
98104fde 8448 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8449 break;
8450 default:
f7ca38df 8451 return -EOPNOTSUPP;
71bbc994 8452 }
f7ca38df
JB		 8453
8454 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8455
e35e4d28 8456 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8457}
8458
ffb9eb3d
KV		 8459static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8460{
4c476991 8461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8462 struct wireless_dev *wdev;
4c476991 8463 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8464 u8 ps_state;
8465 bool state;
8466 int err;
8467
4c476991
JB		 8468 if (!info->attrs[NL80211_ATTR_PS_STATE])
8469 return -EINVAL;
ffb9eb3d
KV		 8470
8471 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8472
4c476991
JB		 8473 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8474 return -EINVAL;
ffb9eb3d
KV		 8475
8476 wdev = dev->ieee80211_ptr;
8477
4c476991
JB		 8478 if (!rdev->ops->set_power_mgmt)
8479 return -EOPNOTSUPP;
ffb9eb3d
KV		 8480
8481 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8482
8483 if (state == wdev->ps)
4c476991 8484 return 0;
ffb9eb3d 8485
e35e4d28 8486 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8487 if (!err)
8488 wdev->ps = state;
ffb9eb3d
KV		 8489 return err;
8490}
8491
8492static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8493{
4c476991 8494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8495 enum nl80211_ps_state ps_state;
8496 struct wireless_dev *wdev;
4c476991 8497 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8498 struct sk_buff *msg;
8499 void *hdr;
8500 int err;
8501
ffb9eb3d
KV		 8502 wdev = dev->ieee80211_ptr;
8503
4c476991
JB		 8504 if (!rdev->ops->set_power_mgmt)
8505 return -EOPNOTSUPP;
ffb9eb3d
KV		 8506
8507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8508 if (!msg)
8509 return -ENOMEM;
ffb9eb3d 8510
15e47304 8511 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8512 NL80211_CMD_GET_POWER_SAVE);
8513 if (!hdr) {
4c476991 8514 err = -ENOBUFS;
ffb9eb3d
KV		 8515 goto free_msg;
8516 }
8517
8518 if (wdev->ps)
8519 ps_state = NL80211_PS_ENABLED;
8520 else
8521 ps_state = NL80211_PS_DISABLED;
8522
9360ffd1
DM		 8523 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8524 goto nla_put_failure;
ffb9eb3d
KV		 8525
8526 genlmsg_end(msg, hdr);
4c476991 8527 return genlmsg_reply(msg, info);
ffb9eb3d 8528
4c476991 8529 nla_put_failure:
ffb9eb3d 8530 err = -ENOBUFS;
4c476991 8531 free_msg:
ffb9eb3d 8532 nlmsg_free(msg);
ffb9eb3d
KV		 8533 return err;
8534}
8535
94e860f1
JB		 8536static const struct nla_policy
8537nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8538 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8539 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8540 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8541 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8542 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8543 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8544};
8545
84f10708 8546static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8547 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8548{
8549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8550 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8551 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8552
d9d8b019 8553 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8554 return -EINVAL;
8555
84f10708
TP		 8556 if (!rdev->ops->set_cqm_txe_config)
8557 return -EOPNOTSUPP;
8558
8559 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8560 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8561 return -EOPNOTSUPP;
8562
e35e4d28 8563 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8564}
8565
d6dc1a38
JO		 8566static int nl80211_set_cqm_rssi(struct genl_info *info,
8567 s32 threshold, u32 hysteresis)
8568{
4c476991 8569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8570 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8571 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8572
8573 if (threshold > 0)
8574 return -EINVAL;
8575
1da5fcc8
JB		 8576 /* disabling - hysteresis should also be zero then */
8577 if (threshold == 0)
8578 hysteresis = 0;
d6dc1a38 8579
4c476991
JB		 8580 if (!rdev->ops->set_cqm_rssi_config)
8581 return -EOPNOTSUPP;
d6dc1a38 8582
074ac8df 8583 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8584 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8585 return -EOPNOTSUPP;
d6dc1a38 8586
e35e4d28 8587 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8588}
8589
8590static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8591{
8592 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8593 struct nlattr *cqm;
8594 int err;
8595
8596 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8597 if (!cqm)
8598 return -EINVAL;
d6dc1a38
JO		 8599
8600 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8601 nl80211_attr_cqm_policy);
8602 if (err)
1da5fcc8 8603 return err;
d6dc1a38
JO		 8604
8605 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8606 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8607 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8608 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8609
1da5fcc8
JB		 8610 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8611 }
8612
8613 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8614 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8615 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8616 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8617 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8618 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8619
8620 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8621 }
8622
8623 return -EINVAL;
d6dc1a38
JO		 8624}
8625
6e0bd6c3
RL		 8626static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8627{
8628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8629 struct net_device *dev = info->user_ptr[1];
8630 struct ocb_setup setup = {};
8631 int err;
8632
8633 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8634 if (err)
8635 return err;
8636
8637 return cfg80211_join_ocb(rdev, dev, &setup);
8638}
8639
8640static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8641{
8642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8643 struct net_device *dev = info->user_ptr[1];
8644
8645 return cfg80211_leave_ocb(rdev, dev);
8646}
8647
29cbe68c
JB		 8648static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8649{
8650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8651 struct net_device *dev = info->user_ptr[1];
8652 struct mesh_config cfg;
c80d545d 8653 struct mesh_setup setup;
29cbe68c
JB		 8654 int err;
8655
8656 /* start with default */
8657 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8658 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8659
24bdd9f4 8660 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8661 /* and parse parameters if given */
24bdd9f4 8662 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8663 if (err)
8664 return err;
8665 }
8666
8667 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8668 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8669 return -EINVAL;
8670
c80d545d
JC		 8671 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8672 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8673
4bb62344
CYY		 8674 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8675 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8676 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8677 return -EINVAL;
8678
9bdbf04d
MP		 8679 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8680 setup.beacon_interval =
8681 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8682 if (setup.beacon_interval < 10 ||
8683 setup.beacon_interval > 10000)
8684 return -EINVAL;
8685 }
8686
8687 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8688 setup.dtim_period =
8689 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8690 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8691 return -EINVAL;
8692 }
8693
c80d545d
JC		 8694 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8695 /* parse additional setup parameters if given */
8696 err = nl80211_parse_mesh_setup(info, &setup);
8697 if (err)
8698 return err;
8699 }
8700
d37bb18a
TP		 8701 if (setup.user_mpm)
8702 cfg.auto_open_plinks = false;
8703
cc1d2806 8704 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8705 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8706 if (err)
8707 return err;
cc1d2806
JB		 8708 } else {
8709 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8710 setup.chandef.chan = NULL;
cc1d2806
JB		 8711 }
8712
ffb3cf30
AN		 8713 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8714 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8715 int n_rates =
8716 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8717 struct ieee80211_supported_band *sband;
8718
8719 if (!setup.chandef.chan)
8720 return -EINVAL;
8721
8722 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8723
8724 err = ieee80211_get_ratemask(sband, rates, n_rates,
8725 &setup.basic_rates);
8726 if (err)
8727 return err;
8728 }
8729
c80d545d 8730 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8731}
8732
8733static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8734{
8735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8736 struct net_device *dev = info->user_ptr[1];
8737
8738 return cfg80211_leave_mesh(rdev, dev);
8739}
8740
dfb89c56 8741#ifdef CONFIG_PM
bb92d199
AK		 8742static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8743 struct cfg80211_registered_device *rdev)
8744{
6abb9cb9 8745 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8746 struct nlattr *nl_pats, *nl_pat;
8747 int i, pat_len;
8748
6abb9cb9 8749 if (!wowlan->n_patterns)
bb92d199
AK		 8750 return 0;
8751
8752 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8753 if (!nl_pats)
8754 return -ENOBUFS;
8755
6abb9cb9 8756 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8757 nl_pat = nla_nest_start(msg, i + 1);
8758 if (!nl_pat)
8759 return -ENOBUFS;
6abb9cb9 8760 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8761 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8762 wowlan->patterns[i].mask) ||
50ac6607
AK		 8763 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8764 wowlan->patterns[i].pattern) ||
8765 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8766 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8767 return -ENOBUFS;
8768 nla_nest_end(msg, nl_pat);
8769 }
8770 nla_nest_end(msg, nl_pats);
8771
8772 return 0;
8773}
8774
2a0e047e
JB		 8775static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8776 struct cfg80211_wowlan_tcp *tcp)
8777{
8778 struct nlattr *nl_tcp;
8779
8780 if (!tcp)
8781 return 0;
8782
8783 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8784 if (!nl_tcp)
8785 return -ENOBUFS;
8786
8787 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8788 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8789 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8790 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8791 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8792 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8793 tcp->payload_len, tcp->payload) ||
8794 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8795 tcp->data_interval) ||
8796 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8797 tcp->wake_len, tcp->wake_data) ||
8798 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8799 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8800 return -ENOBUFS;
8801
8802 if (tcp->payload_seq.len &&
8803 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8804 sizeof(tcp->payload_seq), &tcp->payload_seq))
8805 return -ENOBUFS;
8806
8807 if (tcp->payload_tok.len &&
8808 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8809 sizeof(tcp->payload_tok) + tcp->tokens_size,
8810 &tcp->payload_tok))
8811 return -ENOBUFS;
8812
e248ad30
JB		 8813 nla_nest_end(msg, nl_tcp);
8814
2a0e047e
JB		 8815 return 0;
8816}
8817
75453ccb
LC		 8818static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8819 struct cfg80211_sched_scan_request *req)
8820{
8821 struct nlattr *nd, *freqs, *matches, *match;
8822 int i;
8823
8824 if (!req)
8825 return 0;
8826
8827 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8828 if (!nd)
8829 return -ENOBUFS;
8830
8831 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8832 return -ENOBUFS;
8833
8834 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8835 if (!freqs)
8836 return -ENOBUFS;
8837
8838 for (i = 0; i < req->n_channels; i++)
8839 nla_put_u32(msg, i, req->channels[i]->center_freq);
8840
8841 nla_nest_end(msg, freqs);
8842
8843 if (req->n_match_sets) {
8844 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8845 for (i = 0; i < req->n_match_sets; i++) {
8846 match = nla_nest_start(msg, i);
8847 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8848 req->match_sets[i].ssid.ssid_len,
8849 req->match_sets[i].ssid.ssid);
8850 nla_nest_end(msg, match);
8851 }
8852 nla_nest_end(msg, matches);
8853 }
8854
8855 nla_nest_end(msg, nd);
8856
8857 return 0;
8858}
8859
ff1b6e69
JB		 8860static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8861{
8862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8863 struct sk_buff *msg;
8864 void *hdr;
2a0e047e 8865 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8866
964dc9e2 8867 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8868 return -EOPNOTSUPP;
8869
6abb9cb9 8870 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8871 /* adjust size to have room for all the data */
6abb9cb9
JB		 8872 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8873 rdev->wiphy.wowlan_config->tcp->payload_len +
8874 rdev->wiphy.wowlan_config->tcp->wake_len +
8875 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8876 }
8877
8878 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8879 if (!msg)
8880 return -ENOMEM;
8881
15e47304 8882 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8883 NL80211_CMD_GET_WOWLAN);
8884 if (!hdr)
8885 goto nla_put_failure;
8886
6abb9cb9 8887 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8888 struct nlattr *nl_wowlan;
8889
8890 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8891 if (!nl_wowlan)
8892 goto nla_put_failure;
8893
6abb9cb9 8894 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8896 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8897 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8898 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8899 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8900 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8901 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8902 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8903 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8904 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8905 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8906 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8907 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8908 goto nla_put_failure;
2a0e047e 8909
bb92d199
AK		 8910 if (nl80211_send_wowlan_patterns(msg, rdev))
8911 goto nla_put_failure;
2a0e047e 8912
6abb9cb9
JB		 8913 if (nl80211_send_wowlan_tcp(msg,
8914 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8915 goto nla_put_failure;
75453ccb
LC		 8916
8917 if (nl80211_send_wowlan_nd(
8918 msg,
8919 rdev->wiphy.wowlan_config->nd_config))
8920 goto nla_put_failure;
2a0e047e 8921
ff1b6e69
JB		 8922 nla_nest_end(msg, nl_wowlan);
8923 }
8924
8925 genlmsg_end(msg, hdr);
8926 return genlmsg_reply(msg, info);
8927
8928nla_put_failure:
8929 nlmsg_free(msg);
8930 return -ENOBUFS;
8931}
8932
2a0e047e
JB		 8933static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8934 struct nlattr *attr,
8935 struct cfg80211_wowlan *trig)
8936{
8937 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8938 struct cfg80211_wowlan_tcp *cfg;
8939 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8940 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8941 u32 size;
8942 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8943 int err, port;
8944
964dc9e2 8945 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8946 return -EINVAL;
8947
8948 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8949 nla_data(attr), nla_len(attr),
8950 nl80211_wowlan_tcp_policy);
8951 if (err)
8952 return err;
8953
8954 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8955 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8956 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8957 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8958 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8959 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8960 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8961 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8962 return -EINVAL;
8963
8964 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8965 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8966 return -EINVAL;
8967
8968 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8969 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8970 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8971 return -EINVAL;
8972
8973 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8974 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8975 return -EINVAL;
8976
8977 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8978 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8979 return -EINVAL;
8980
8981 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8982 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8983
8984 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8985 tokens_size = tokln - sizeof(*tok);
8986
8987 if (!tok->len || tokens_size % tok->len)
8988 return -EINVAL;
964dc9e2 8989 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8990 return -EINVAL;
964dc9e2 8991 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8992 return -EINVAL;
964dc9e2 8993 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8994 return -EINVAL;
964dc9e2 8995 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8996 return -EINVAL;
8997 if (tok->offset + tok->len > data_size)
8998 return -EINVAL;
8999 }
9000
9001 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9002 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 9003 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 9004 return -EINVAL;
9005 if (seq->len == 0 || seq->len > 4)
9006 return -EINVAL;
9007 if (seq->len + seq->offset > data_size)
9008 return -EINVAL;
9009 }
9010
9011 size = sizeof(*cfg);
9012 size += data_size;
9013 size += wake_size + wake_mask_size;
9014 size += tokens_size;
9015
9016 cfg = kzalloc(size, GFP_KERNEL);
9017 if (!cfg)
9018 return -ENOMEM;
9019 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9020 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9021 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9022 ETH_ALEN);
9023 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9024 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9025 else
9026 port = 0;
9027#ifdef CONFIG_INET
9028 /* allocate a socket and port for it and use it */
9029 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9030 IPPROTO_TCP, &cfg->sock, 1);
9031 if (err) {
9032 kfree(cfg);
9033 return err;
9034 }
9035 if (inet_csk_get_port(cfg->sock->sk, port)) {
9036 sock_release(cfg->sock);
9037 kfree(cfg);
9038 return -EADDRINUSE;
9039 }
9040 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9041#else
9042 if (!port) {
9043 kfree(cfg);
9044 return -EINVAL;
9045 }
9046 cfg->src_port = port;
9047#endif
9048
9049 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9050 cfg->payload_len = data_size;
9051 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9052 memcpy((void *)cfg->payload,
9053 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9054 data_size);
9055 if (seq)
9056 cfg->payload_seq = *seq;
9057 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9058 cfg->wake_len = wake_size;
9059 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9060 memcpy((void *)cfg->wake_data,
9061 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9062 wake_size);
9063 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9064 data_size + wake_size;
9065 memcpy((void *)cfg->wake_mask,
9066 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9067 wake_mask_size);
9068 if (tok) {
9069 cfg->tokens_size = tokens_size;
9070 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9071 }
9072
9073 trig->tcp = cfg;
9074
9075 return 0;
9076}
9077
8cd4d456
LC		 9078static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9079 const struct wiphy_wowlan_support *wowlan,
9080 struct nlattr *attr,
9081 struct cfg80211_wowlan *trig)
9082{
9083 struct nlattr **tb;
9084 int err;
9085
9086 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9087 if (!tb)
9088 return -ENOMEM;
9089
9090 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9091 err = -EOPNOTSUPP;
9092 goto out;
9093 }
9094
9095 err = nla_parse(tb, NL80211_ATTR_MAX,
9096 nla_data(attr), nla_len(attr),
9097 nl80211_policy);
9098 if (err)
9099 goto out;
9100
ad2b26ab 9101 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9102 err = PTR_ERR_OR_ZERO(trig->nd_config);
9103 if (err)
9104 trig->nd_config = NULL;
9105
9106out:
9107 kfree(tb);
9108 return err;
9109}
9110
ff1b6e69
JB		 9111static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9112{
9113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9114 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9115 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9116 struct cfg80211_wowlan *ntrig;
964dc9e2 9117 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9118 int err, i;
6abb9cb9 9119 bool prev_enabled = rdev->wiphy.wowlan_config;
98fc4386 9120 bool regular = false;
ff1b6e69 9121
964dc9e2 9122 if (!wowlan)
ff1b6e69
JB		 9123 return -EOPNOTSUPP;
9124
ae33bd81
JB		 9125 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9126 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9127 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9128 goto set_wakeup;
9129 }
ff1b6e69
JB		 9130
9131 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9132 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9133 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9134 nl80211_wowlan_policy);
9135 if (err)
9136 return err;
9137
9138 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9139 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9140 return -EINVAL;
9141 new_triggers.any = true;
9142 }
9143
9144 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9145 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9146 return -EINVAL;
9147 new_triggers.disconnect = true;
98fc4386 9148 regular = true;
ff1b6e69
JB		 9149 }
9150
9151 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9152 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9153 return -EINVAL;
9154 new_triggers.magic_pkt = true;
98fc4386 9155 regular = true;
ff1b6e69
JB		 9156 }
9157
77dbbb13
JB		 9158 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9159 return -EINVAL;
9160
9161 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9162 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9163 return -EINVAL;
9164 new_triggers.gtk_rekey_failure = true;
98fc4386 9165 regular = true;
77dbbb13
JB		 9166 }
9167
9168 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9169 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9170 return -EINVAL;
9171 new_triggers.eap_identity_req = true;
98fc4386 9172 regular = true;
77dbbb13
JB		 9173 }
9174
9175 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9176 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9177 return -EINVAL;
9178 new_triggers.four_way_handshake = true;
98fc4386 9179 regular = true;
77dbbb13
JB		 9180 }
9181
9182 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9183 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9184 return -EINVAL;
9185 new_triggers.rfkill_release = true;
98fc4386 9186 regular = true;
77dbbb13
JB		 9187 }
9188
ff1b6e69
JB		 9189 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9190 struct nlattr *pat;
9191 int n_patterns = 0;
bb92d199 9192 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9193 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69 9194
98fc4386
JB		 9195 regular = true;
9196
ff1b6e69
JB		 9197 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9198 rem)
9199 n_patterns++;
9200 if (n_patterns > wowlan->n_patterns)
9201 return -EINVAL;
9202
9203 new_triggers.patterns = kcalloc(n_patterns,
9204 sizeof(new_triggers.patterns[0]),
9205 GFP_KERNEL);
9206 if (!new_triggers.patterns)
9207 return -ENOMEM;
9208
9209 new_triggers.n_patterns = n_patterns;
9210 i = 0;
9211
9212 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9213 rem) {
922bd80f
JB		 9214 u8 *mask_pat;
9215
50ac6607
AK		 9216 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9217 nla_len(pat), NULL);
ff1b6e69 9218 err = -EINVAL;
50ac6607
AK		 9219 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9220 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9221 goto error;
50ac6607 9222 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9223 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9224 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9225 goto error;
9226 if (pat_len > wowlan->pattern_max_len ||
9227 pat_len < wowlan->pattern_min_len)
9228 goto error;
9229
50ac6607 9230 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9231 pkt_offset = 0;
9232 else
9233 pkt_offset = nla_get_u32(
50ac6607 9234 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9235 if (pkt_offset > wowlan->max_pkt_offset)
9236 goto error;
9237 new_triggers.patterns[i].pkt_offset = pkt_offset;
9238
922bd80f
JB		 9239 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9240 if (!mask_pat) {
ff1b6e69
JB		 9241 err = -ENOMEM;
9242 goto error;
9243 }
922bd80f
JB		 9244 new_triggers.patterns[i].mask = mask_pat;
9245 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9246 mask_len);
922bd80f
JB		 9247 mask_pat += mask_len;
9248 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9249 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9250 memcpy(mask_pat,
50ac6607 9251 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9252 pat_len);
9253 i++;
9254 }
9255 }
9256
2a0e047e 9257 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
98fc4386 9258 regular = true;
2a0e047e
JB		 9259 err = nl80211_parse_wowlan_tcp(
9260 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9261 &new_triggers);
9262 if (err)
9263 goto error;
9264 }
9265
8cd4d456 9266 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
98fc4386 9267 regular = true;
8cd4d456
LC		 9268 err = nl80211_parse_wowlan_nd(
9269 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9270 &new_triggers);
9271 if (err)
9272 goto error;
9273 }
9274
98fc4386
JB		 9275 /* The 'any' trigger means the device continues operating more or less
9276 * as in its normal operation mode and wakes up the host on most of the
9277 * normal interrupts (like packet RX, ...)
9278 * It therefore makes little sense to combine with the more constrained
9279 * wakeup trigger modes.
9280 */
9281 if (new_triggers.any && regular) {
9282 err = -EINVAL;
9283 goto error;
9284 }
9285
ae33bd81
JB		 9286 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9287 if (!ntrig) {
9288 err = -ENOMEM;
9289 goto error;
ff1b6e69 9290 }
ae33bd81 9291 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9292 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9293
ae33bd81 9294 set_wakeup:
6abb9cb9
JB		 9295 if (rdev->ops->set_wakeup &&
9296 prev_enabled != !!rdev->wiphy.wowlan_config)
9297 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9298
ff1b6e69
JB		 9299 return 0;
9300 error:
9301 for (i = 0; i < new_triggers.n_patterns; i++)
9302 kfree(new_triggers.patterns[i].mask);
9303 kfree(new_triggers.patterns);
2a0e047e
JB		 9304 if (new_triggers.tcp && new_triggers.tcp->sock)
9305 sock_release(new_triggers.tcp->sock);
9306 kfree(new_triggers.tcp);
ff1b6e69
JB		 9307 return err;
9308}
dfb89c56 9309#endif
ff1b6e69 9310
be29b99a
AK		 9311static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9312 struct cfg80211_registered_device *rdev)
9313{
9314 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9315 int i, j, pat_len;
9316 struct cfg80211_coalesce_rules *rule;
9317
9318 if (!rdev->coalesce->n_rules)
9319 return 0;
9320
9321 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9322 if (!nl_rules)
9323 return -ENOBUFS;
9324
9325 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9326 nl_rule = nla_nest_start(msg, i + 1);
9327 if (!nl_rule)
9328 return -ENOBUFS;
9329
9330 rule = &rdev->coalesce->rules[i];
9331 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9332 rule->delay))
9333 return -ENOBUFS;
9334
9335 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9336 rule->condition))
9337 return -ENOBUFS;
9338
9339 nl_pats = nla_nest_start(msg,
9340 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9341 if (!nl_pats)
9342 return -ENOBUFS;
9343
9344 for (j = 0; j < rule->n_patterns; j++) {
9345 nl_pat = nla_nest_start(msg, j + 1);
9346 if (!nl_pat)
9347 return -ENOBUFS;
9348 pat_len = rule->patterns[j].pattern_len;
9349 if (nla_put(msg, NL80211_PKTPAT_MASK,
9350 DIV_ROUND_UP(pat_len, 8),
9351 rule->patterns[j].mask) ||
9352 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9353 rule->patterns[j].pattern) ||
9354 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9355 rule->patterns[j].pkt_offset))
9356 return -ENOBUFS;
9357 nla_nest_end(msg, nl_pat);
9358 }
9359 nla_nest_end(msg, nl_pats);
9360 nla_nest_end(msg, nl_rule);
9361 }
9362 nla_nest_end(msg, nl_rules);
9363
9364 return 0;
9365}
9366
9367static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9368{
9369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9370 struct sk_buff *msg;
9371 void *hdr;
9372
9373 if (!rdev->wiphy.coalesce)
9374 return -EOPNOTSUPP;
9375
9376 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9377 if (!msg)
9378 return -ENOMEM;
9379
9380 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9381 NL80211_CMD_GET_COALESCE);
9382 if (!hdr)
9383 goto nla_put_failure;
9384
9385 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9386 goto nla_put_failure;
9387
9388 genlmsg_end(msg, hdr);
9389 return genlmsg_reply(msg, info);
9390
9391nla_put_failure:
9392 nlmsg_free(msg);
9393 return -ENOBUFS;
9394}
9395
9396void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9397{
9398 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9399 int i, j;
9400 struct cfg80211_coalesce_rules *rule;
9401
9402 if (!coalesce)
9403 return;
9404
9405 for (i = 0; i < coalesce->n_rules; i++) {
9406 rule = &coalesce->rules[i];
9407 for (j = 0; j < rule->n_patterns; j++)
9408 kfree(rule->patterns[j].mask);
9409 kfree(rule->patterns);
9410 }
9411 kfree(coalesce->rules);
9412 kfree(coalesce);
9413 rdev->coalesce = NULL;
9414}
9415
9416static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9417 struct nlattr *rule,
9418 struct cfg80211_coalesce_rules *new_rule)
9419{
9420 int err, i;
9421 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9422 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9423 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9424 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9425
9426 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9427 nla_len(rule), nl80211_coalesce_policy);
9428 if (err)
9429 return err;
9430
9431 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9432 new_rule->delay =
9433 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9434 if (new_rule->delay > coalesce->max_delay)
9435 return -EINVAL;
9436
9437 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9438 new_rule->condition =
9439 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9440 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9441 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9442 return -EINVAL;
9443
9444 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9445 return -EINVAL;
9446
9447 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9448 rem)
9449 n_patterns++;
9450 if (n_patterns > coalesce->n_patterns)
9451 return -EINVAL;
9452
9453 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9454 GFP_KERNEL);
9455 if (!new_rule->patterns)
9456 return -ENOMEM;
9457
9458 new_rule->n_patterns = n_patterns;
9459 i = 0;
9460
9461 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9462 rem) {
922bd80f
JB		 9463 u8 *mask_pat;
9464
be29b99a
AK		 9465 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9466 nla_len(pat), NULL);
9467 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9468 !pat_tb[NL80211_PKTPAT_PATTERN])
9469 return -EINVAL;
9470 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9471 mask_len = DIV_ROUND_UP(pat_len, 8);
9472 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9473 return -EINVAL;
9474 if (pat_len > coalesce->pattern_max_len ||
9475 pat_len < coalesce->pattern_min_len)
9476 return -EINVAL;
9477
9478 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9479 pkt_offset = 0;
9480 else
9481 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9482 if (pkt_offset > coalesce->max_pkt_offset)
9483 return -EINVAL;
9484 new_rule->patterns[i].pkt_offset = pkt_offset;
9485
922bd80f
JB		 9486 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9487 if (!mask_pat)
be29b99a 9488 return -ENOMEM;
922bd80f
JB		 9489
9490 new_rule->patterns[i].mask = mask_pat;
9491 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9492 mask_len);
9493
9494 mask_pat += mask_len;
9495 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9496 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9497 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9498 pat_len);
be29b99a
AK		 9499 i++;
9500 }
9501
9502 return 0;
9503}
9504
9505static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9506{
9507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9508 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9509 struct cfg80211_coalesce new_coalesce = {};
9510 struct cfg80211_coalesce *n_coalesce;
9511 int err, rem_rule, n_rules = 0, i, j;
9512 struct nlattr *rule;
9513 struct cfg80211_coalesce_rules *tmp_rule;
9514
9515 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9516 return -EOPNOTSUPP;
9517
9518 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9519 cfg80211_rdev_free_coalesce(rdev);
9520 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9521 return 0;
9522 }
9523
9524 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9525 rem_rule)
9526 n_rules++;
9527 if (n_rules > coalesce->n_rules)
9528 return -EINVAL;
9529
9530 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9531 GFP_KERNEL);
9532 if (!new_coalesce.rules)
9533 return -ENOMEM;
9534
9535 new_coalesce.n_rules = n_rules;
9536 i = 0;
9537
9538 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9539 rem_rule) {
9540 err = nl80211_parse_coalesce_rule(rdev, rule,
9541 &new_coalesce.rules[i]);
9542 if (err)
9543 goto error;
9544
9545 i++;
9546 }
9547
9548 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9549 if (err)
9550 goto error;
9551
9552 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9553 if (!n_coalesce) {
9554 err = -ENOMEM;
9555 goto error;
9556 }
9557 cfg80211_rdev_free_coalesce(rdev);
9558 rdev->coalesce = n_coalesce;
9559
9560 return 0;
9561error:
9562 for (i = 0; i < new_coalesce.n_rules; i++) {
9563 tmp_rule = &new_coalesce.rules[i];
9564 for (j = 0; j < tmp_rule->n_patterns; j++)
9565 kfree(tmp_rule->patterns[j].mask);
9566 kfree(tmp_rule->patterns);
9567 }
9568 kfree(new_coalesce.rules);
9569
9570 return err;
9571}
9572
e5497d76
JB		 9573static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9574{
9575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9576 struct net_device *dev = info->user_ptr[1];
9577 struct wireless_dev *wdev = dev->ieee80211_ptr;
9578 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9579 struct cfg80211_gtk_rekey_data rekey_data;
9580 int err;
9581
9582 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9583 return -EINVAL;
9584
9585 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9586 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9587 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9588 nl80211_rekey_policy);
9589 if (err)
9590 return err;
9591
9592 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9593 return -ERANGE;
9594 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9595 return -ERANGE;
9596 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9597 return -ERANGE;
9598
78f686ca
JB		 9599 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9600 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9601 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9602
9603 wdev_lock(wdev);
9604 if (!wdev->current_bss) {
9605 err = -ENOTCONN;
9606 goto out;
9607 }
9608
9609 if (!rdev->ops->set_rekey_data) {
9610 err = -EOPNOTSUPP;
9611 goto out;
9612 }
9613
e35e4d28 9614 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9615 out:
9616 wdev_unlock(wdev);
9617 return err;
9618}
9619
28946da7
JB		 9620static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9621 struct genl_info *info)
9622{
9623 struct net_device *dev = info->user_ptr[1];
9624 struct wireless_dev *wdev = dev->ieee80211_ptr;
9625
9626 if (wdev->iftype != NL80211_IFTYPE_AP &&
9627 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9628 return -EINVAL;
9629
15e47304 9630 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9631 return -EBUSY;
9632
15e47304 9633 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9634 return 0;
9635}
9636
7f6cf311
JB		 9637static int nl80211_probe_client(struct sk_buff *skb,
9638 struct genl_info *info)
9639{
9640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9641 struct net_device *dev = info->user_ptr[1];
9642 struct wireless_dev *wdev = dev->ieee80211_ptr;
9643 struct sk_buff *msg;
9644 void *hdr;
9645 const u8 *addr;
9646 u64 cookie;
9647 int err;
9648
9649 if (wdev->iftype != NL80211_IFTYPE_AP &&
9650 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9651 return -EOPNOTSUPP;
9652
9653 if (!info->attrs[NL80211_ATTR_MAC])
9654 return -EINVAL;
9655
9656 if (!rdev->ops->probe_client)
9657 return -EOPNOTSUPP;
9658
9659 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9660 if (!msg)
9661 return -ENOMEM;
9662
15e47304 9663 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9664 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9665 if (!hdr) {
9666 err = -ENOBUFS;
7f6cf311
JB		 9667 goto free_msg;
9668 }
9669
9670 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9671
e35e4d28 9672 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9673 if (err)
9674 goto free_msg;
9675
9360ffd1
DM		 9676 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9677 goto nla_put_failure;
7f6cf311
JB		 9678
9679 genlmsg_end(msg, hdr);
9680
9681 return genlmsg_reply(msg, info);
9682
9683 nla_put_failure:
9684 err = -ENOBUFS;
9685 free_msg:
9686 nlmsg_free(msg);
9687 return err;
9688}
9689
5e760230
JB		 9690static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9691{
9692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9693 struct cfg80211_beacon_registration *reg, *nreg;
9694 int rv;
5e760230
JB		 9695
9696 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9697 return -EOPNOTSUPP;
9698
37c73b5f
BG		 9699 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9700 if (!nreg)
9701 return -ENOMEM;
9702
9703 /* First, check if already registered. */
9704 spin_lock_bh(&rdev->beacon_registrations_lock);
9705 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9706 if (reg->nlportid == info->snd_portid) {
9707 rv = -EALREADY;
9708 goto out_err;
9709 }
9710 }
9711 /* Add it to the list */
9712 nreg->nlportid = info->snd_portid;
9713 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9714
37c73b5f 9715 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9716
9717 return 0;
37c73b5f
BG		 9718out_err:
9719 spin_unlock_bh(&rdev->beacon_registrations_lock);
9720 kfree(nreg);
9721 return rv;
5e760230
JB		 9722}
9723
98104fde
JB		 9724static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9725{
9726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9727 struct wireless_dev *wdev = info->user_ptr[1];
9728 int err;
9729
9730 if (!rdev->ops->start_p2p_device)
9731 return -EOPNOTSUPP;
9732
9733 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9734 return -EOPNOTSUPP;
9735
9736 if (wdev->p2p_started)
9737 return 0;
9738
b6a55015
LC		 9739 if (rfkill_blocked(rdev->rfkill))
9740 return -ERFKILL;
98104fde 9741
eeb126e9 9742 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9743 if (err)
9744 return err;
9745
9746 wdev->p2p_started = true;
98104fde 9747 rdev->opencount++;
98104fde
JB		 9748
9749 return 0;
9750}
9751
9752static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9753{
9754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9755 struct wireless_dev *wdev = info->user_ptr[1];
9756
9757 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9758 return -EOPNOTSUPP;
9759
9760 if (!rdev->ops->stop_p2p_device)
9761 return -EOPNOTSUPP;
9762
f9f47529 9763 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9764
9765 return 0;
9766}
9767
3713b4e3
JB		 9768static int nl80211_get_protocol_features(struct sk_buff *skb,
9769 struct genl_info *info)
9770{
9771 void *hdr;
9772 struct sk_buff *msg;
9773
9774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9775 if (!msg)
9776 return -ENOMEM;
9777
9778 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9779 NL80211_CMD_GET_PROTOCOL_FEATURES);
9780 if (!hdr)
9781 goto nla_put_failure;
9782
9783 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9784 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9785 goto nla_put_failure;
9786
9787 genlmsg_end(msg, hdr);
9788 return genlmsg_reply(msg, info);
9789
9790 nla_put_failure:
9791 kfree_skb(msg);
9792 return -ENOBUFS;
9793}
9794
355199e0
JM		 9795static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9796{
9797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9798 struct cfg80211_update_ft_ies_params ft_params;
9799 struct net_device *dev = info->user_ptr[1];
9800
9801 if (!rdev->ops->update_ft_ies)
9802 return -EOPNOTSUPP;
9803
9804 if (!info->attrs[NL80211_ATTR_MDID] ||
9805 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9806 return -EINVAL;
9807
9808 memset(&ft_params, 0, sizeof(ft_params));
9809 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9810 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9811 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9812
9813 return rdev_update_ft_ies(rdev, dev, &ft_params);
9814}
9815
5de17984
AS		 9816static int nl80211_crit_protocol_start(struct sk_buff *skb,
9817 struct genl_info *info)
9818{
9819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9820 struct wireless_dev *wdev = info->user_ptr[1];
9821 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9822 u16 duration;
9823 int ret;
9824
9825 if (!rdev->ops->crit_proto_start)
9826 return -EOPNOTSUPP;
9827
9828 if (WARN_ON(!rdev->ops->crit_proto_stop))
9829 return -EINVAL;
9830
9831 if (rdev->crit_proto_nlportid)
9832 return -EBUSY;
9833
9834 /* determine protocol if provided */
9835 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9836 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9837
9838 if (proto >= NUM_NL80211_CRIT_PROTO)
9839 return -EINVAL;
9840
9841 /* timeout must be provided */
9842 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9843 return -EINVAL;
9844
9845 duration =
9846 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9847
9848 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9849 return -ERANGE;
9850
9851 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9852 if (!ret)
9853 rdev->crit_proto_nlportid = info->snd_portid;
9854
9855 return ret;
9856}
9857
9858static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9859 struct genl_info *info)
9860{
9861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9862 struct wireless_dev *wdev = info->user_ptr[1];
9863
9864 if (!rdev->ops->crit_proto_stop)
9865 return -EOPNOTSUPP;
9866
9867 if (rdev->crit_proto_nlportid) {
9868 rdev->crit_proto_nlportid = 0;
9869 rdev_crit_proto_stop(rdev, wdev);
9870 }
9871 return 0;
9872}
9873
ad7e718c
JB		 9874static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9875{
9876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9877 struct wireless_dev *wdev =
9878 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9879 int i, err;
9880 u32 vid, subcmd;
9881
9882 if (!rdev->wiphy.vendor_commands)
9883 return -EOPNOTSUPP;
9884
9885 if (IS_ERR(wdev)) {
9886 err = PTR_ERR(wdev);
9887 if (err != -EINVAL)
9888 return err;
9889 wdev = NULL;
9890 } else if (wdev->wiphy != &rdev->wiphy) {
9891 return -EINVAL;
9892 }
9893
9894 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9895 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9896 return -EINVAL;
9897
9898 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9899 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9900 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9901 const struct wiphy_vendor_command *vcmd;
9902 void *data = NULL;
9903 int len = 0;
9904
9905 vcmd = &rdev->wiphy.vendor_commands[i];
9906
9907 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9908 continue;
9909
9910 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9911 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9912 if (!wdev)
9913 return -EINVAL;
9914 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9915 !wdev->netdev)
9916 return -EINVAL;
9917
9918 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9919 if (wdev->netdev &&
9920 !netif_running(wdev->netdev))
9921 return -ENETDOWN;
9922 if (!wdev->netdev && !wdev->p2p_started)
9923 return -ENETDOWN;
9924 }
9925 } else {
9926 wdev = NULL;
9927 }
9928
9929 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9930 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9931 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9932 }
9933
9934 rdev->cur_cmd_info = info;
9935 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9936 data, len);
9937 rdev->cur_cmd_info = NULL;
9938 return err;
9939 }
9940
9941 return -EOPNOTSUPP;
9942}
9943
9944struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9945 enum nl80211_commands cmd,
9946 enum nl80211_attrs attr,
9947 int approxlen)
9948{
f26cbf40 9949 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9950
9951 if (WARN_ON(!rdev->cur_cmd_info))
9952 return NULL;
9953
6c09e791 9954 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 9955 rdev->cur_cmd_info->snd_portid,
9956 rdev->cur_cmd_info->snd_seq,
567ffc35 9957 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9958}
9959EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9960
9961int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9962{
9963 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9964 void *hdr = ((void **)skb->cb)[1];
9965 struct nlattr *data = ((void **)skb->cb)[2];
9966
bd8c78e7
JB		 9967 /* clear CB data for netlink core to own from now on */
9968 memset(skb->cb, 0, sizeof(skb->cb));
9969
ad7e718c
JB		 9970 if (WARN_ON(!rdev->cur_cmd_info)) {
9971 kfree_skb(skb);
9972 return -EINVAL;
9973 }
9974
9975 nla_nest_end(skb, data);
9976 genlmsg_end(skb, hdr);
9977 return genlmsg_reply(skb, rdev->cur_cmd_info);
9978}
9979EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9980
9981
fa9ffc74
KP		 9982static int nl80211_set_qos_map(struct sk_buff *skb,
9983 struct genl_info *info)
9984{
9985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9986 struct cfg80211_qos_map *qos_map = NULL;
9987 struct net_device *dev = info->user_ptr[1];
9988 u8 *pos, len, num_des, des_len, des;
9989 int ret;
9990
9991 if (!rdev->ops->set_qos_map)
9992 return -EOPNOTSUPP;
9993
9994 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9995 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9996 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9997
9998 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9999 len > IEEE80211_QOS_MAP_LEN_MAX)
10000 return -EINVAL;
10001
10002 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10003 if (!qos_map)
10004 return -ENOMEM;
10005
10006 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10007 if (num_des) {
10008 des_len = num_des *
10009 sizeof(struct cfg80211_dscp_exception);
10010 memcpy(qos_map->dscp_exception, pos, des_len);
10011 qos_map->num_des = num_des;
10012 for (des = 0; des < num_des; des++) {
10013 if (qos_map->dscp_exception[des].up > 7) {
10014 kfree(qos_map);
10015 return -EINVAL;
10016 }
10017 }
10018 pos += des_len;
10019 }
10020 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10021 }
10022
10023 wdev_lock(dev->ieee80211_ptr);
10024 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10025 if (!ret)
10026 ret = rdev_set_qos_map(rdev, dev, qos_map);
10027 wdev_unlock(dev->ieee80211_ptr);
10028
10029 kfree(qos_map);
10030 return ret;
10031}
10032
960d01ac
JB		 10033static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10034{
10035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10036 struct net_device *dev = info->user_ptr[1];
10037 struct wireless_dev *wdev = dev->ieee80211_ptr;
10038 const u8 *peer;
10039 u8 tsid, up;
10040 u16 admitted_time = 0;
10041 int err;
10042
723e73ac 10043 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10044 return -EOPNOTSUPP;
10045
10046 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10047 !info->attrs[NL80211_ATTR_USER_PRIO])
10048 return -EINVAL;
10049
10050 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10051 if (tsid >= IEEE80211_NUM_TIDS)
10052 return -EINVAL;
10053
10054 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10055 if (up >= IEEE80211_NUM_UPS)
10056 return -EINVAL;
10057
10058 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10059 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10060 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10061 * need more attributes for that (e.g. BA session requirement);
10062 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10063 */
10064 return -EINVAL;
10065 }
10066
10067 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10068
10069 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10070 admitted_time =
10071 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10072 if (!admitted_time)
10073 return -EINVAL;
10074 }
10075
10076 wdev_lock(wdev);
10077 switch (wdev->iftype) {
10078 case NL80211_IFTYPE_STATION:
10079 case NL80211_IFTYPE_P2P_CLIENT:
10080 if (wdev->current_bss)
10081 break;
10082 err = -ENOTCONN;
10083 goto out;
10084 default:
10085 err = -EOPNOTSUPP;
10086 goto out;
10087 }
10088
10089 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10090
10091 out:
10092 wdev_unlock(wdev);
10093 return err;
10094}
10095
10096static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10097{
10098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10099 struct net_device *dev = info->user_ptr[1];
10100 struct wireless_dev *wdev = dev->ieee80211_ptr;
10101 const u8 *peer;
10102 u8 tsid;
10103 int err;
10104
10105 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10106 return -EINVAL;
10107
10108 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10109 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10110
10111 wdev_lock(wdev);
10112 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10113 wdev_unlock(wdev);
10114
10115 return err;
10116}
10117
1057d35e
AN		 10118static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10119 struct genl_info *info)
10120{
10121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10122 struct net_device *dev = info->user_ptr[1];
10123 struct wireless_dev *wdev = dev->ieee80211_ptr;
10124 struct cfg80211_chan_def chandef = {};
10125 const u8 *addr;
10126 u8 oper_class;
10127 int err;
10128
10129 if (!rdev->ops->tdls_channel_switch ||
10130 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10131 return -EOPNOTSUPP;
10132
10133 switch (dev->ieee80211_ptr->iftype) {
10134 case NL80211_IFTYPE_STATION:
10135 case NL80211_IFTYPE_P2P_CLIENT:
10136 break;
10137 default:
10138 return -EOPNOTSUPP;
10139 }
10140
10141 if (!info->attrs[NL80211_ATTR_MAC] ||
10142 !info->attrs[NL80211_ATTR_OPER_CLASS])
10143 return -EINVAL;
10144
10145 err = nl80211_parse_chandef(rdev, info, &chandef);
10146 if (err)
10147 return err;
10148
10149 /*
10150 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10151 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10152 * specification is not defined for them.
10153 */
10154 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10155 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10156 chandef.width != NL80211_CHAN_WIDTH_20)
10157 return -EINVAL;
10158
10159 /* we will be active on the TDLS link */
10160 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10161 return -EINVAL;
10162
10163 /* don't allow switching to DFS channels */
10164 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10165 return -EINVAL;
10166
10167 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10168 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10169
10170 wdev_lock(wdev);
10171 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10172 wdev_unlock(wdev);
10173
10174 return err;
10175}
10176
10177static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10178 struct genl_info *info)
10179{
10180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10181 struct net_device *dev = info->user_ptr[1];
10182 struct wireless_dev *wdev = dev->ieee80211_ptr;
10183 const u8 *addr;
10184
10185 if (!rdev->ops->tdls_channel_switch ||
10186 !rdev->ops->tdls_cancel_channel_switch ||
10187 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10188 return -EOPNOTSUPP;
10189
10190 switch (dev->ieee80211_ptr->iftype) {
10191 case NL80211_IFTYPE_STATION:
10192 case NL80211_IFTYPE_P2P_CLIENT:
10193 break;
10194 default:
10195 return -EOPNOTSUPP;
10196 }
10197
10198 if (!info->attrs[NL80211_ATTR_MAC])
10199 return -EINVAL;
10200
10201 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10202
10203 wdev_lock(wdev);
10204 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10205 wdev_unlock(wdev);
10206
10207 return 0;
10208}
10209
4c476991
JB		 10210#define NL80211_FLAG_NEED_WIPHY 0x01
10211#define NL80211_FLAG_NEED_NETDEV 0x02
10212#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10213#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10214#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10215 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10216#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10217/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10218#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10219 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10220#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10221
f84f771d 10222static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10223 struct genl_info *info)
10224{
10225 struct cfg80211_registered_device *rdev;
89a54e48 10226 struct wireless_dev *wdev;
4c476991 10227 struct net_device *dev;
4c476991
JB		 10228 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10229
10230 if (rtnl)
10231 rtnl_lock();
10232
10233 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10234 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10235 if (IS_ERR(rdev)) {
10236 if (rtnl)
10237 rtnl_unlock();
10238 return PTR_ERR(rdev);
10239 }
10240 info->user_ptr[0] = rdev;
1bf614ef
JB		 10241 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10242 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10243 ASSERT_RTNL();
10244
89a54e48
JB		 10245 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10246 info->attrs);
10247 if (IS_ERR(wdev)) {
4c476991
JB		 10248 if (rtnl)
10249 rtnl_unlock();
89a54e48 10250 return PTR_ERR(wdev);
4c476991 10251 }
89a54e48 10252
89a54e48 10253 dev = wdev->netdev;
f26cbf40 10254 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10255
1bf614ef
JB		 10256 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10257 if (!dev) {
1bf614ef
JB		 10258 if (rtnl)
10259 rtnl_unlock();
10260 return -EINVAL;
10261 }
10262
10263 info->user_ptr[1] = dev;
10264 } else {
10265 info->user_ptr[1] = wdev;
41265714 10266 }
1bf614ef
JB		 10267
10268 if (dev) {
10269 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10270 !netif_running(dev)) {
1bf614ef
JB		 10271 if (rtnl)
10272 rtnl_unlock();
10273 return -ENETDOWN;
10274 }
10275
10276 dev_hold(dev);
98104fde
JB		 10277 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10278 if (!wdev->p2p_started) {
98104fde
JB		 10279 if (rtnl)
10280 rtnl_unlock();
10281 return -ENETDOWN;
10282 }
41265714 10283 }
89a54e48 10284
4c476991 10285 info->user_ptr[0] = rdev;
4c476991
JB		 10286 }
10287
10288 return 0;
10289}
10290
f84f771d 10291static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10292 struct genl_info *info)
10293{
1bf614ef
JB		 10294 if (info->user_ptr[1]) {
10295 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10296 struct wireless_dev *wdev = info->user_ptr[1];
10297
10298 if (wdev->netdev)
10299 dev_put(wdev->netdev);
10300 } else {
10301 dev_put(info->user_ptr[1]);
10302 }
10303 }
5393b917 10304
4c476991
JB		 10305 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10306 rtnl_unlock();
5393b917
JB		 10307
10308 /* If needed, clear the netlink message payload from the SKB
10309 * as it might contain key data that shouldn't stick around on
10310 * the heap after the SKB is freed. The netlink message header
10311 * is still needed for further processing, so leave it intact.
10312 */
10313 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10314 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10315
10316 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10317 }
4c476991
JB		 10318}
10319
4534de83 10320static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10321 {
10322 .cmd = NL80211_CMD_GET_WIPHY,
10323 .doit = nl80211_get_wiphy,
10324 .dumpit = nl80211_dump_wiphy,
86e8cf98 10325 .done = nl80211_dump_wiphy_done,
55682965
JB		 10326 .policy = nl80211_policy,
10327 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10328 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10329 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10330 },
10331 {
10332 .cmd = NL80211_CMD_SET_WIPHY,
10333 .doit = nl80211_set_wiphy,
10334 .policy = nl80211_policy,
10335 .flags = GENL_ADMIN_PERM,
4c476991 10336 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10337 },
10338 {
10339 .cmd = NL80211_CMD_GET_INTERFACE,
10340 .doit = nl80211_get_interface,
10341 .dumpit = nl80211_dump_interface,
10342 .policy = nl80211_policy,
10343 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10344 .internal_flags = NL80211_FLAG_NEED_WDEV |
10345 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10346 },
10347 {
10348 .cmd = NL80211_CMD_SET_INTERFACE,
10349 .doit = nl80211_set_interface,
10350 .policy = nl80211_policy,
10351 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10352 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10353 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10354 },
10355 {
10356 .cmd = NL80211_CMD_NEW_INTERFACE,
10357 .doit = nl80211_new_interface,
10358 .policy = nl80211_policy,
10359 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10360 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10361 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10362 },
10363 {
10364 .cmd = NL80211_CMD_DEL_INTERFACE,
10365 .doit = nl80211_del_interface,
10366 .policy = nl80211_policy,
41ade00f 10367 .flags = GENL_ADMIN_PERM,
84efbb84 10368 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10369 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10370 },
10371 {
10372 .cmd = NL80211_CMD_GET_KEY,
10373 .doit = nl80211_get_key,
10374 .policy = nl80211_policy,
10375 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10376 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10377 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10378 },
10379 {
10380 .cmd = NL80211_CMD_SET_KEY,
10381 .doit = nl80211_set_key,
10382 .policy = nl80211_policy,
10383 .flags = GENL_ADMIN_PERM,
41265714 10384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10385 NL80211_FLAG_NEED_RTNL |
10386 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10387 },
10388 {
10389 .cmd = NL80211_CMD_NEW_KEY,
10390 .doit = nl80211_new_key,
10391 .policy = nl80211_policy,
10392 .flags = GENL_ADMIN_PERM,
41265714 10393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10394 NL80211_FLAG_NEED_RTNL |
10395 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10396 },
10397 {
10398 .cmd = NL80211_CMD_DEL_KEY,
10399 .doit = nl80211_del_key,
10400 .policy = nl80211_policy,
55682965 10401 .flags = GENL_ADMIN_PERM,
41265714 10402 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10403 NL80211_FLAG_NEED_RTNL,
55682965 10404 },
ed1b6cc7
JB		 10405 {
10406 .cmd = NL80211_CMD_SET_BEACON,
10407 .policy = nl80211_policy,
10408 .flags = GENL_ADMIN_PERM,
8860020e 10409 .doit = nl80211_set_beacon,
2b5f8b0b 10410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10411 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10412 },
10413 {
8860020e 10414 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10415 .policy = nl80211_policy,
10416 .flags = GENL_ADMIN_PERM,
8860020e 10417 .doit = nl80211_start_ap,
2b5f8b0b 10418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10419 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10420 },
10421 {
8860020e 10422 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10423 .policy = nl80211_policy,
10424 .flags = GENL_ADMIN_PERM,
8860020e 10425 .doit = nl80211_stop_ap,
2b5f8b0b 10426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10427 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10428 },
5727ef1b
JB		 10429 {
10430 .cmd = NL80211_CMD_GET_STATION,
10431 .doit = nl80211_get_station,
2ec600d6 10432 .dumpit = nl80211_dump_station,
5727ef1b 10433 .policy = nl80211_policy,
4c476991
JB		 10434 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10435 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10436 },
10437 {
10438 .cmd = NL80211_CMD_SET_STATION,
10439 .doit = nl80211_set_station,
10440 .policy = nl80211_policy,
10441 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10443 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10444 },
10445 {
10446 .cmd = NL80211_CMD_NEW_STATION,
10447 .doit = nl80211_new_station,
10448 .policy = nl80211_policy,
10449 .flags = GENL_ADMIN_PERM,
41265714 10450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10451 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10452 },
10453 {
10454 .cmd = NL80211_CMD_DEL_STATION,
10455 .doit = nl80211_del_station,
10456 .policy = nl80211_policy,
2ec600d6 10457 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10459 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10460 },
10461 {
10462 .cmd = NL80211_CMD_GET_MPATH,
10463 .doit = nl80211_get_mpath,
10464 .dumpit = nl80211_dump_mpath,
10465 .policy = nl80211_policy,
10466 .flags = GENL_ADMIN_PERM,
41265714 10467 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10468 NL80211_FLAG_NEED_RTNL,
2ec600d6 10469 },
66be7d2b
HR		 10470 {
10471 .cmd = NL80211_CMD_GET_MPP,
10472 .doit = nl80211_get_mpp,
10473 .dumpit = nl80211_dump_mpp,
10474 .policy = nl80211_policy,
10475 .flags = GENL_ADMIN_PERM,
10476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10477 NL80211_FLAG_NEED_RTNL,
10478 },
2ec600d6
LCC		 10479 {
10480 .cmd = NL80211_CMD_SET_MPATH,
10481 .doit = nl80211_set_mpath,
10482 .policy = nl80211_policy,
10483 .flags = GENL_ADMIN_PERM,
41265714 10484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10485 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10486 },
10487 {
10488 .cmd = NL80211_CMD_NEW_MPATH,
10489 .doit = nl80211_new_mpath,
10490 .policy = nl80211_policy,
10491 .flags = GENL_ADMIN_PERM,
41265714 10492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10493 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10494 },
10495 {
10496 .cmd = NL80211_CMD_DEL_MPATH,
10497 .doit = nl80211_del_mpath,
10498 .policy = nl80211_policy,
9f1ba906 10499 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10501 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10502 },
10503 {
10504 .cmd = NL80211_CMD_SET_BSS,
10505 .doit = nl80211_set_bss,
10506 .policy = nl80211_policy,
b2e1b302 10507 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10509 NL80211_FLAG_NEED_RTNL,
b2e1b302 10510 },
f130347c
LR		 10511 {
10512 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10513 .doit = nl80211_get_reg_do,
10514 .dumpit = nl80211_get_reg_dump,
f130347c 10515 .policy = nl80211_policy,
5fe231e8 10516 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10517 /* can be retrieved by unprivileged users */
10518 },
b2e1b302
LR		 10519 {
10520 .cmd = NL80211_CMD_SET_REG,
10521 .doit = nl80211_set_reg,
10522 .policy = nl80211_policy,
10523 .flags = GENL_ADMIN_PERM,
5fe231e8 10524 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10525 },
10526 {
10527 .cmd = NL80211_CMD_REQ_SET_REG,
10528 .doit = nl80211_req_set_reg,
10529 .policy = nl80211_policy,
93da9cc1 10530 .flags = GENL_ADMIN_PERM,
10531 },
10532 {
24bdd9f4
JC		 10533 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10534 .doit = nl80211_get_mesh_config,
93da9cc1 10535 .policy = nl80211_policy,
10536 /* can be retrieved by unprivileged users */
2b5f8b0b 10537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10538 NL80211_FLAG_NEED_RTNL,
93da9cc1 10539 },
10540 {
24bdd9f4
JC		 10541 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10542 .doit = nl80211_update_mesh_config,
93da9cc1 10543 .policy = nl80211_policy,
9aed3cc1 10544 .flags = GENL_ADMIN_PERM,
29cbe68c 10545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10546 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10547 },
2a519311
JB		 10548 {
10549 .cmd = NL80211_CMD_TRIGGER_SCAN,
10550 .doit = nl80211_trigger_scan,
10551 .policy = nl80211_policy,
10552 .flags = GENL_ADMIN_PERM,
fd014284 10553 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10554 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10555 },
10556 {
10557 .cmd = NL80211_CMD_GET_SCAN,
10558 .policy = nl80211_policy,
10559 .dumpit = nl80211_dump_scan,
10560 },
807f8a8c
LC		 10561 {
10562 .cmd = NL80211_CMD_START_SCHED_SCAN,
10563 .doit = nl80211_start_sched_scan,
10564 .policy = nl80211_policy,
10565 .flags = GENL_ADMIN_PERM,
10566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10567 NL80211_FLAG_NEED_RTNL,
10568 },
10569 {
10570 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10571 .doit = nl80211_stop_sched_scan,
10572 .policy = nl80211_policy,
10573 .flags = GENL_ADMIN_PERM,
10574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10575 NL80211_FLAG_NEED_RTNL,
10576 },
636a5d36
JM		 10577 {
10578 .cmd = NL80211_CMD_AUTHENTICATE,
10579 .doit = nl80211_authenticate,
10580 .policy = nl80211_policy,
10581 .flags = GENL_ADMIN_PERM,
41265714 10582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10583 NL80211_FLAG_NEED_RTNL |
10584 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10585 },
10586 {
10587 .cmd = NL80211_CMD_ASSOCIATE,
10588 .doit = nl80211_associate,
10589 .policy = nl80211_policy,
10590 .flags = GENL_ADMIN_PERM,
41265714 10591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10592 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10593 },
10594 {
10595 .cmd = NL80211_CMD_DEAUTHENTICATE,
10596 .doit = nl80211_deauthenticate,
10597 .policy = nl80211_policy,
10598 .flags = GENL_ADMIN_PERM,
41265714 10599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10600 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10601 },
10602 {
10603 .cmd = NL80211_CMD_DISASSOCIATE,
10604 .doit = nl80211_disassociate,
10605 .policy = nl80211_policy,
10606 .flags = GENL_ADMIN_PERM,
41265714 10607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10608 NL80211_FLAG_NEED_RTNL,
636a5d36 10609 },
04a773ad
JB		 10610 {
10611 .cmd = NL80211_CMD_JOIN_IBSS,
10612 .doit = nl80211_join_ibss,
10613 .policy = nl80211_policy,
10614 .flags = GENL_ADMIN_PERM,
41265714 10615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10616 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10617 },
10618 {
10619 .cmd = NL80211_CMD_LEAVE_IBSS,
10620 .doit = nl80211_leave_ibss,
10621 .policy = nl80211_policy,
10622 .flags = GENL_ADMIN_PERM,
41265714 10623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10624 NL80211_FLAG_NEED_RTNL,
04a773ad 10625 },
aff89a9b
JB		 10626#ifdef CONFIG_NL80211_TESTMODE
10627 {
10628 .cmd = NL80211_CMD_TESTMODE,
10629 .doit = nl80211_testmode_do,
71063f0e 10630 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10631 .policy = nl80211_policy,
10632 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10633 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10634 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10635 },
10636#endif
b23aa676
SO		 10637 {
10638 .cmd = NL80211_CMD_CONNECT,
10639 .doit = nl80211_connect,
10640 .policy = nl80211_policy,
10641 .flags = GENL_ADMIN_PERM,
41265714 10642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10643 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10644 },
10645 {
10646 .cmd = NL80211_CMD_DISCONNECT,
10647 .doit = nl80211_disconnect,
10648 .policy = nl80211_policy,
10649 .flags = GENL_ADMIN_PERM,
41265714 10650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10651 NL80211_FLAG_NEED_RTNL,
b23aa676 10652 },
463d0183
JB		 10653 {
10654 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10655 .doit = nl80211_wiphy_netns,
10656 .policy = nl80211_policy,
10657 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10658 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10659 NL80211_FLAG_NEED_RTNL,
463d0183 10660 },
61fa713c
HS		 10661 {
10662 .cmd = NL80211_CMD_GET_SURVEY,
10663 .policy = nl80211_policy,
10664 .dumpit = nl80211_dump_survey,
10665 },
67fbb16b
SO		 10666 {
10667 .cmd = NL80211_CMD_SET_PMKSA,
10668 .doit = nl80211_setdel_pmksa,
10669 .policy = nl80211_policy,
10670 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10672 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10673 },
10674 {
10675 .cmd = NL80211_CMD_DEL_PMKSA,
10676 .doit = nl80211_setdel_pmksa,
10677 .policy = nl80211_policy,
10678 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10680 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10681 },
10682 {
10683 .cmd = NL80211_CMD_FLUSH_PMKSA,
10684 .doit = nl80211_flush_pmksa,
10685 .policy = nl80211_policy,
10686 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10688 NL80211_FLAG_NEED_RTNL,
67fbb16b 10689 },
9588bbd5
JM		 10690 {
10691 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10692 .doit = nl80211_remain_on_channel,
10693 .policy = nl80211_policy,
10694 .flags = GENL_ADMIN_PERM,
71bbc994 10695 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10696 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10697 },
10698 {
10699 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10700 .doit = nl80211_cancel_remain_on_channel,
10701 .policy = nl80211_policy,
10702 .flags = GENL_ADMIN_PERM,
71bbc994 10703 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10704 NL80211_FLAG_NEED_RTNL,
9588bbd5 10705 },
13ae75b1
JM		 10706 {
10707 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10708 .doit = nl80211_set_tx_bitrate_mask,
10709 .policy = nl80211_policy,
10710 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10711 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10712 NL80211_FLAG_NEED_RTNL,
13ae75b1 10713 },
026331c4 10714 {
2e161f78
JB		 10715 .cmd = NL80211_CMD_REGISTER_FRAME,
10716 .doit = nl80211_register_mgmt,
026331c4
JM		 10717 .policy = nl80211_policy,
10718 .flags = GENL_ADMIN_PERM,
71bbc994 10719 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10720 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10721 },
10722 {
2e161f78
JB		 10723 .cmd = NL80211_CMD_FRAME,
10724 .doit = nl80211_tx_mgmt,
026331c4 10725 .policy = nl80211_policy,
f7ca38df 10726 .flags = GENL_ADMIN_PERM,
71bbc994 10727 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10728 NL80211_FLAG_NEED_RTNL,
10729 },
10730 {
10731 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10732 .doit = nl80211_tx_mgmt_cancel_wait,
10733 .policy = nl80211_policy,
026331c4 10734 .flags = GENL_ADMIN_PERM,
71bbc994 10735 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10736 NL80211_FLAG_NEED_RTNL,
026331c4 10737 },
ffb9eb3d
KV		 10738 {
10739 .cmd = NL80211_CMD_SET_POWER_SAVE,
10740 .doit = nl80211_set_power_save,
10741 .policy = nl80211_policy,
10742 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10743 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10744 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10745 },
10746 {
10747 .cmd = NL80211_CMD_GET_POWER_SAVE,
10748 .doit = nl80211_get_power_save,
10749 .policy = nl80211_policy,
10750 /* can be retrieved by unprivileged users */
4c476991
JB		 10751 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10752 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10753 },
d6dc1a38
JO		 10754 {
10755 .cmd = NL80211_CMD_SET_CQM,
10756 .doit = nl80211_set_cqm,
10757 .policy = nl80211_policy,
10758 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10759 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10760 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10761 },
f444de05
JB		 10762 {
10763 .cmd = NL80211_CMD_SET_CHANNEL,
10764 .doit = nl80211_set_channel,
10765 .policy = nl80211_policy,
10766 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10767 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10768 NL80211_FLAG_NEED_RTNL,
f444de05 10769 },
e8347eba
BJ		 10770 {
10771 .cmd = NL80211_CMD_SET_WDS_PEER,
10772 .doit = nl80211_set_wds_peer,
10773 .policy = nl80211_policy,
10774 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10776 NL80211_FLAG_NEED_RTNL,
e8347eba 10777 },
29cbe68c
JB		 10778 {
10779 .cmd = NL80211_CMD_JOIN_MESH,
10780 .doit = nl80211_join_mesh,
10781 .policy = nl80211_policy,
10782 .flags = GENL_ADMIN_PERM,
10783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10784 NL80211_FLAG_NEED_RTNL,
10785 },
10786 {
10787 .cmd = NL80211_CMD_LEAVE_MESH,
10788 .doit = nl80211_leave_mesh,
10789 .policy = nl80211_policy,
10790 .flags = GENL_ADMIN_PERM,
10791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10792 NL80211_FLAG_NEED_RTNL,
10793 },
6e0bd6c3
RL		 10794 {
10795 .cmd = NL80211_CMD_JOIN_OCB,
10796 .doit = nl80211_join_ocb,
10797 .policy = nl80211_policy,
10798 .flags = GENL_ADMIN_PERM,
10799 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10800 NL80211_FLAG_NEED_RTNL,
10801 },
10802 {
10803 .cmd = NL80211_CMD_LEAVE_OCB,
10804 .doit = nl80211_leave_ocb,
10805 .policy = nl80211_policy,
10806 .flags = GENL_ADMIN_PERM,
10807 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10808 NL80211_FLAG_NEED_RTNL,
10809 },
dfb89c56 10810#ifdef CONFIG_PM
ff1b6e69
JB		 10811 {
10812 .cmd = NL80211_CMD_GET_WOWLAN,
10813 .doit = nl80211_get_wowlan,
10814 .policy = nl80211_policy,
10815 /* can be retrieved by unprivileged users */
10816 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10817 NL80211_FLAG_NEED_RTNL,
10818 },
10819 {
10820 .cmd = NL80211_CMD_SET_WOWLAN,
10821 .doit = nl80211_set_wowlan,
10822 .policy = nl80211_policy,
10823 .flags = GENL_ADMIN_PERM,
10824 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10825 NL80211_FLAG_NEED_RTNL,
10826 },
dfb89c56 10827#endif
e5497d76
JB		 10828 {
10829 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10830 .doit = nl80211_set_rekey_data,
10831 .policy = nl80211_policy,
10832 .flags = GENL_ADMIN_PERM,
10833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10834 NL80211_FLAG_NEED_RTNL |
10835 NL80211_FLAG_CLEAR_SKB,
e5497d76 10836 },
109086ce
AN		 10837 {
10838 .cmd = NL80211_CMD_TDLS_MGMT,
10839 .doit = nl80211_tdls_mgmt,
10840 .policy = nl80211_policy,
10841 .flags = GENL_ADMIN_PERM,
10842 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10843 NL80211_FLAG_NEED_RTNL,
10844 },
10845 {
10846 .cmd = NL80211_CMD_TDLS_OPER,
10847 .doit = nl80211_tdls_oper,
10848 .policy = nl80211_policy,
10849 .flags = GENL_ADMIN_PERM,
10850 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10851 NL80211_FLAG_NEED_RTNL,
10852 },
28946da7
JB		 10853 {
10854 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10855 .doit = nl80211_register_unexpected_frame,
10856 .policy = nl80211_policy,
10857 .flags = GENL_ADMIN_PERM,
10858 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10859 NL80211_FLAG_NEED_RTNL,
10860 },
7f6cf311
JB		 10861 {
10862 .cmd = NL80211_CMD_PROBE_CLIENT,
10863 .doit = nl80211_probe_client,
10864 .policy = nl80211_policy,
10865 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10866 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10867 NL80211_FLAG_NEED_RTNL,
10868 },
5e760230
JB		 10869 {
10870 .cmd = NL80211_CMD_REGISTER_BEACONS,
10871 .doit = nl80211_register_beacons,
10872 .policy = nl80211_policy,
10873 .flags = GENL_ADMIN_PERM,
10874 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10875 NL80211_FLAG_NEED_RTNL,
10876 },
1d9d9213
SW		 10877 {
10878 .cmd = NL80211_CMD_SET_NOACK_MAP,
10879 .doit = nl80211_set_noack_map,
10880 .policy = nl80211_policy,
10881 .flags = GENL_ADMIN_PERM,
10882 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10883 NL80211_FLAG_NEED_RTNL,
10884 },
98104fde
JB		 10885 {
10886 .cmd = NL80211_CMD_START_P2P_DEVICE,
10887 .doit = nl80211_start_p2p_device,
10888 .policy = nl80211_policy,
10889 .flags = GENL_ADMIN_PERM,
10890 .internal_flags = NL80211_FLAG_NEED_WDEV |
10891 NL80211_FLAG_NEED_RTNL,
10892 },
10893 {
10894 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10895 .doit = nl80211_stop_p2p_device,
10896 .policy = nl80211_policy,
10897 .flags = GENL_ADMIN_PERM,
10898 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10899 NL80211_FLAG_NEED_RTNL,
10900 },
f4e583c8
AQ		 10901 {
10902 .cmd = NL80211_CMD_SET_MCAST_RATE,
10903 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10904 .policy = nl80211_policy,
10905 .flags = GENL_ADMIN_PERM,
10906 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10907 NL80211_FLAG_NEED_RTNL,
10908 },
10909 {
10910 .cmd = NL80211_CMD_SET_MAC_ACL,
10911 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10912 .policy = nl80211_policy,
10913 .flags = GENL_ADMIN_PERM,
10914 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10915 NL80211_FLAG_NEED_RTNL,
10916 },
04f39047
SW		 10917 {
10918 .cmd = NL80211_CMD_RADAR_DETECT,
10919 .doit = nl80211_start_radar_detection,
10920 .policy = nl80211_policy,
10921 .flags = GENL_ADMIN_PERM,
10922 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10923 NL80211_FLAG_NEED_RTNL,
10924 },
3713b4e3
JB		 10925 {
10926 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10927 .doit = nl80211_get_protocol_features,
10928 .policy = nl80211_policy,
10929 },
355199e0
JM		 10930 {
10931 .cmd = NL80211_CMD_UPDATE_FT_IES,
10932 .doit = nl80211_update_ft_ies,
10933 .policy = nl80211_policy,
10934 .flags = GENL_ADMIN_PERM,
10935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10936 NL80211_FLAG_NEED_RTNL,
10937 },
5de17984
AS		 10938 {
10939 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10940 .doit = nl80211_crit_protocol_start,
10941 .policy = nl80211_policy,
10942 .flags = GENL_ADMIN_PERM,
10943 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10944 NL80211_FLAG_NEED_RTNL,
10945 },
10946 {
10947 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10948 .doit = nl80211_crit_protocol_stop,
10949 .policy = nl80211_policy,
10950 .flags = GENL_ADMIN_PERM,
10951 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10952 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10953 },
10954 {
10955 .cmd = NL80211_CMD_GET_COALESCE,
10956 .doit = nl80211_get_coalesce,
10957 .policy = nl80211_policy,
10958 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10959 NL80211_FLAG_NEED_RTNL,
10960 },
10961 {
10962 .cmd = NL80211_CMD_SET_COALESCE,
10963 .doit = nl80211_set_coalesce,
10964 .policy = nl80211_policy,
10965 .flags = GENL_ADMIN_PERM,
10966 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10967 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10968 },
10969 {
10970 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10971 .doit = nl80211_channel_switch,
10972 .policy = nl80211_policy,
10973 .flags = GENL_ADMIN_PERM,
10974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10975 NL80211_FLAG_NEED_RTNL,
10976 },
ad7e718c
JB		 10977 {
10978 .cmd = NL80211_CMD_VENDOR,
10979 .doit = nl80211_vendor_cmd,
10980 .policy = nl80211_policy,
10981 .flags = GENL_ADMIN_PERM,
10982 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10983 NL80211_FLAG_NEED_RTNL,
10984 },
fa9ffc74
KP		 10985 {
10986 .cmd = NL80211_CMD_SET_QOS_MAP,
10987 .doit = nl80211_set_qos_map,
10988 .policy = nl80211_policy,
10989 .flags = GENL_ADMIN_PERM,
10990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10991 NL80211_FLAG_NEED_RTNL,
10992 },
960d01ac
JB		 10993 {
10994 .cmd = NL80211_CMD_ADD_TX_TS,
10995 .doit = nl80211_add_tx_ts,
10996 .policy = nl80211_policy,
10997 .flags = GENL_ADMIN_PERM,
10998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10999 NL80211_FLAG_NEED_RTNL,
11000 },
11001 {
11002 .cmd = NL80211_CMD_DEL_TX_TS,
11003 .doit = nl80211_del_tx_ts,
11004 .policy = nl80211_policy,
11005 .flags = GENL_ADMIN_PERM,
11006 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11007 NL80211_FLAG_NEED_RTNL,
11008 },
1057d35e
AN		 11009 {
11010 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11011 .doit = nl80211_tdls_channel_switch,
11012 .policy = nl80211_policy,
11013 .flags = GENL_ADMIN_PERM,
11014 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11015 NL80211_FLAG_NEED_RTNL,
11016 },
11017 {
11018 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11019 .doit = nl80211_tdls_cancel_channel_switch,
11020 .policy = nl80211_policy,
11021 .flags = GENL_ADMIN_PERM,
11022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11023 NL80211_FLAG_NEED_RTNL,
11024 },
55682965 11025};
9588bbd5 11026
55682965
JB		 11027/* notification functions */
11028
3bb20556
JB		 11029void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11030 enum nl80211_commands cmd)
55682965
JB		 11031{
11032 struct sk_buff *msg;
86e8cf98 11033 struct nl80211_dump_wiphy_state state = {};
55682965 11034
3bb20556
JB		 11035 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11036 cmd != NL80211_CMD_DEL_WIPHY);
11037
fd2120ca 11038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11039 if (!msg)
11040 return;
11041
3bb20556 11042 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11043 nlmsg_free(msg);
11044 return;
11045 }
11046
68eb5503 11047 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11048 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11049}
11050
362a415d
JB		 11051static int nl80211_add_scan_req(struct sk_buff *msg,
11052 struct cfg80211_registered_device *rdev)
11053{
11054 struct cfg80211_scan_request *req = rdev->scan_req;
11055 struct nlattr *nest;
11056 int i;
11057
11058 if (WARN_ON(!req))
11059 return 0;
11060
11061 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11062 if (!nest)
11063 goto nla_put_failure;
9360ffd1
DM		 11064 for (i = 0; i < req->n_ssids; i++) {
11065 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11066 goto nla_put_failure;
11067 }
362a415d
JB		 11068 nla_nest_end(msg, nest);
11069
11070 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11071 if (!nest)
11072 goto nla_put_failure;
9360ffd1
DM		 11073 for (i = 0; i < req->n_channels; i++) {
11074 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11075 goto nla_put_failure;
11076 }
362a415d
JB		 11077 nla_nest_end(msg, nest);
11078
9360ffd1
DM		 11079 if (req->ie &&
11080 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11081 goto nla_put_failure;
362a415d 11082
ae917c9f
JB		 11083 if (req->flags &&
11084 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11085 goto nla_put_failure;
ed473771 11086
362a415d
JB		 11087 return 0;
11088 nla_put_failure:
11089 return -ENOBUFS;
11090}
11091
a538e2d5
JB		 11092static int nl80211_send_scan_msg(struct sk_buff *msg,
11093 struct cfg80211_registered_device *rdev,
fd014284 11094 struct wireless_dev *wdev,
15e47304 11095 u32 portid, u32 seq, int flags,
a538e2d5 11096 u32 cmd)
2a519311
JB		 11097{
11098 void *hdr;
11099
15e47304 11100 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11101 if (!hdr)
11102 return -1;
11103
9360ffd1 11104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11105 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11106 wdev->netdev->ifindex)) ||
11107 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11108 goto nla_put_failure;
2a519311 11109
362a415d
JB		 11110 /* ignore errors and send incomplete event anyway */
11111 nl80211_add_scan_req(msg, rdev);
2a519311 11112
053c095a
JB		 11113 genlmsg_end(msg, hdr);
11114 return 0;
2a519311
JB		 11115
11116 nla_put_failure:
11117 genlmsg_cancel(msg, hdr);
11118 return -EMSGSIZE;
11119}
11120
807f8a8c
LC		 11121static int
11122nl80211_send_sched_scan_msg(struct sk_buff *msg,
11123 struct cfg80211_registered_device *rdev,
11124 struct net_device *netdev,
15e47304 11125 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11126{
11127 void *hdr;
11128
15e47304 11129 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11130 if (!hdr)
11131 return -1;
11132
9360ffd1
DM		 11133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11134 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11135 goto nla_put_failure;
807f8a8c 11136
053c095a
JB		 11137 genlmsg_end(msg, hdr);
11138 return 0;
807f8a8c
LC		 11139
11140 nla_put_failure:
11141 genlmsg_cancel(msg, hdr);
11142 return -EMSGSIZE;
11143}
11144
a538e2d5 11145void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11146 struct wireless_dev *wdev)
a538e2d5
JB		 11147{
11148 struct sk_buff *msg;
11149
58050fce 11150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11151 if (!msg)
11152 return;
11153
fd014284 11154 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11155 NL80211_CMD_TRIGGER_SCAN) < 0) {
11156 nlmsg_free(msg);
11157 return;
11158 }
11159
68eb5503 11160 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11161 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11162}
11163
f9d15d16
JB		 11164struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11165 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11166{
11167 struct sk_buff *msg;
11168
fd2120ca 11169 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11170 if (!msg)
f9d15d16 11171 return NULL;
2a519311 11172
fd014284 11173 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11174 aborted ? NL80211_CMD_SCAN_ABORTED :
11175 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11176 nlmsg_free(msg);
f9d15d16 11177 return NULL;
2a519311
JB		 11178 }
11179
f9d15d16 11180 return msg;
2a519311
JB		 11181}
11182
f9d15d16
JB		 11183void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11184 struct sk_buff *msg)
2a519311 11185{
2a519311
JB		 11186 if (!msg)
11187 return;
11188
68eb5503 11189 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11190 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11191}
11192
807f8a8c
LC		 11193void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11194 struct net_device *netdev)
11195{
11196 struct sk_buff *msg;
11197
11198 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11199 if (!msg)
11200 return;
11201
11202 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11203 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11204 nlmsg_free(msg);
11205 return;
11206 }
11207
68eb5503 11208 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11209 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11210}
11211
11212void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11213 struct net_device *netdev, u32 cmd)
11214{
11215 struct sk_buff *msg;
11216
58050fce 11217 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11218 if (!msg)
11219 return;
11220
11221 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11222 nlmsg_free(msg);
11223 return;
11224 }
11225
68eb5503 11226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11227 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11228}
11229
b0d7aa59
JD		 11230static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11231 struct regulatory_request *request)
73d54c9e 11232{
73d54c9e 11233 /* Userspace can always count this one always being set */
9360ffd1
DM		 11234 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11235 goto nla_put_failure;
11236
11237 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11238 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11239 NL80211_REGDOM_TYPE_WORLD))
11240 goto nla_put_failure;
11241 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11242 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11243 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11244 goto nla_put_failure;
11245 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11246 request->intersect) {
11247 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11248 NL80211_REGDOM_TYPE_INTERSECTION))
11249 goto nla_put_failure;
11250 } else {
11251 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11252 NL80211_REGDOM_TYPE_COUNTRY) ||
11253 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11254 request->alpha2))
11255 goto nla_put_failure;
11256 }
11257
ad30ca2c
AN		 11258 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11259 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11260
11261 if (wiphy &&
11262 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11263 goto nla_put_failure;
1bdd716c
AN		 11264
11265 if (wiphy &&
11266 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11267 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11268 goto nla_put_failure;
ad30ca2c 11269 }
73d54c9e 11270
b0d7aa59
JD		 11271 return true;
11272
11273nla_put_failure:
11274 return false;
11275}
11276
11277/*
11278 * This can happen on global regulatory changes or device specific settings
11279 * based on custom regulatory domains.
11280 */
11281void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11282 struct regulatory_request *request)
11283{
11284 struct sk_buff *msg;
11285 void *hdr;
11286
11287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11288 if (!msg)
11289 return;
11290
11291 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11292 if (!hdr) {
11293 nlmsg_free(msg);
11294 return;
11295 }
11296
11297 if (nl80211_reg_change_event_fill(msg, request) == false)
11298 goto nla_put_failure;
11299
3b7b72ee 11300 genlmsg_end(msg, hdr);
73d54c9e 11301
bc43b28c 11302 rcu_read_lock();
68eb5503 11303 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11304 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11305 rcu_read_unlock();
73d54c9e
LR		 11306
11307 return;
11308
11309nla_put_failure:
11310 genlmsg_cancel(msg, hdr);
11311 nlmsg_free(msg);
11312}
11313
6039f6d2
JM		 11314static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11315 struct net_device *netdev,
11316 const u8 *buf, size_t len,
b0b6aa2c
EP		 11317 enum nl80211_commands cmd, gfp_t gfp,
11318 int uapsd_queues)
6039f6d2
JM		 11319{
11320 struct sk_buff *msg;
11321 void *hdr;
11322
e6d6e342 11323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11324 if (!msg)
11325 return;
11326
11327 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11328 if (!hdr) {
11329 nlmsg_free(msg);
11330 return;
11331 }
11332
9360ffd1
DM		 11333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11335 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11336 goto nla_put_failure;
6039f6d2 11337
b0b6aa2c
EP		 11338 if (uapsd_queues >= 0) {
11339 struct nlattr *nla_wmm =
11340 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11341 if (!nla_wmm)
11342 goto nla_put_failure;
11343
11344 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11345 uapsd_queues))
11346 goto nla_put_failure;
11347
11348 nla_nest_end(msg, nla_wmm);
11349 }
11350
3b7b72ee 11351 genlmsg_end(msg, hdr);
6039f6d2 11352
68eb5503 11353 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11354 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11355 return;
11356
11357 nla_put_failure:
11358 genlmsg_cancel(msg, hdr);
11359 nlmsg_free(msg);
11360}
11361
11362void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11363 struct net_device *netdev, const u8 *buf,
11364 size_t len, gfp_t gfp)
6039f6d2
JM		 11365{
11366 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11367 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11368}
11369
11370void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11371 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11372 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11373{
e6d6e342 11374 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11375 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11376}
11377
53b46b84 11378void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11379 struct net_device *netdev, const u8 *buf,
11380 size_t len, gfp_t gfp)
6039f6d2
JM		 11381{
11382 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11383 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11384}
11385
53b46b84
JM		 11386void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11387 struct net_device *netdev, const u8 *buf,
e6d6e342 11388 size_t len, gfp_t gfp)
6039f6d2
JM		 11389{
11390 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11391 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11392}
11393
6ff57cf8
JB		 11394void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11395 size_t len)
cf4e594e 11396{
947add36
JB		 11397 struct wireless_dev *wdev = dev->ieee80211_ptr;
11398 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11400 const struct ieee80211_mgmt *mgmt = (void *)buf;
11401 u32 cmd;
947add36 11402
6ff57cf8
JB		 11403 if (WARN_ON(len < 2))
11404 return;
cf4e594e 11405
6ff57cf8
JB		 11406 if (ieee80211_is_deauth(mgmt->frame_control))
11407 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11408 else
11409 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11410
6ff57cf8 11411 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11412 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11413}
6ff57cf8 11414EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11415
1b06bb40
LR		 11416static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11417 struct net_device *netdev, int cmd,
e6d6e342 11418 const u8 *addr, gfp_t gfp)
1965c853
JM		 11419{
11420 struct sk_buff *msg;
11421 void *hdr;
11422
e6d6e342 11423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11424 if (!msg)
11425 return;
11426
11427 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11428 if (!hdr) {
11429 nlmsg_free(msg);
11430 return;
11431 }
11432
9360ffd1
DM		 11433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11435 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11436 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11437 goto nla_put_failure;
1965c853 11438
3b7b72ee 11439 genlmsg_end(msg, hdr);
1965c853 11440
68eb5503 11441 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11442 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11443 return;
11444
11445 nla_put_failure:
11446 genlmsg_cancel(msg, hdr);
11447 nlmsg_free(msg);
11448}
11449
11450void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11451 struct net_device *netdev, const u8 *addr,
11452 gfp_t gfp)
1965c853
JM		 11453{
11454 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11455 addr, gfp);
1965c853
JM		 11456}
11457
11458void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11459 struct net_device *netdev, const u8 *addr,
11460 gfp_t gfp)
1965c853 11461{
e6d6e342
JB		 11462 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11463 addr, gfp);
1965c853
JM		 11464}
11465
b23aa676
SO		 11466void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11467 struct net_device *netdev, const u8 *bssid,
11468 const u8 *req_ie, size_t req_ie_len,
11469 const u8 *resp_ie, size_t resp_ie_len,
11470 u16 status, gfp_t gfp)
11471{
11472 struct sk_buff *msg;
11473 void *hdr;
11474
58050fce 11475 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11476 if (!msg)
11477 return;
11478
11479 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11480 if (!hdr) {
11481 nlmsg_free(msg);
11482 return;
11483 }
11484
9360ffd1
DM		 11485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11486 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11487 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11488 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11489 (req_ie &&
11490 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11491 (resp_ie &&
11492 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11493 goto nla_put_failure;
b23aa676 11494
3b7b72ee 11495 genlmsg_end(msg, hdr);
b23aa676 11496
68eb5503 11497 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11498 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11499 return;
11500
11501 nla_put_failure:
11502 genlmsg_cancel(msg, hdr);
11503 nlmsg_free(msg);
11504
11505}
11506
11507void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11508 struct net_device *netdev, const u8 *bssid,
11509 const u8 *req_ie, size_t req_ie_len,
11510 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11511{
11512 struct sk_buff *msg;
11513 void *hdr;
11514
58050fce 11515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11516 if (!msg)
11517 return;
11518
11519 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11520 if (!hdr) {
11521 nlmsg_free(msg);
11522 return;
11523 }
11524
9360ffd1
DM		 11525 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11526 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11527 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11528 (req_ie &&
11529 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11530 (resp_ie &&
11531 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11532 goto nla_put_failure;
b23aa676 11533
3b7b72ee 11534 genlmsg_end(msg, hdr);
b23aa676 11535
68eb5503 11536 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11537 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11538 return;
11539
11540 nla_put_failure:
11541 genlmsg_cancel(msg, hdr);
11542 nlmsg_free(msg);
11543
11544}
11545
11546void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11547 struct net_device *netdev, u16 reason,
667503dd 11548 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11549{
11550 struct sk_buff *msg;
11551 void *hdr;
11552
58050fce 11553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11554 if (!msg)
11555 return;
11556
11557 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11558 if (!hdr) {
11559 nlmsg_free(msg);
11560 return;
11561 }
11562
9360ffd1
DM		 11563 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11564 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11565 (from_ap && reason &&
11566 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11567 (from_ap &&
11568 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11569 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11570 goto nla_put_failure;
b23aa676 11571
3b7b72ee 11572 genlmsg_end(msg, hdr);
b23aa676 11573
68eb5503 11574 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11575 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11576 return;
11577
11578 nla_put_failure:
11579 genlmsg_cancel(msg, hdr);
11580 nlmsg_free(msg);
11581
11582}
11583
04a773ad
JB		 11584void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11585 struct net_device *netdev, const u8 *bssid,
11586 gfp_t gfp)
11587{
11588 struct sk_buff *msg;
11589 void *hdr;
11590
fd2120ca 11591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11592 if (!msg)
11593 return;
11594
11595 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11596 if (!hdr) {
11597 nlmsg_free(msg);
11598 return;
11599 }
11600
9360ffd1
DM		 11601 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11602 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11603 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11604 goto nla_put_failure;
04a773ad 11605
3b7b72ee 11606 genlmsg_end(msg, hdr);
04a773ad 11607
68eb5503 11608 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11609 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11610 return;
11611
11612 nla_put_failure:
11613 genlmsg_cancel(msg, hdr);
11614 nlmsg_free(msg);
11615}
11616
947add36
JB		 11617void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11618 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11619{
947add36 11620 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11621 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11622 struct sk_buff *msg;
11623 void *hdr;
11624
947add36
JB		 11625 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11626 return;
11627
11628 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11629
c93b5e71
JC		 11630 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11631 if (!msg)
11632 return;
11633
11634 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11635 if (!hdr) {
11636 nlmsg_free(msg);
11637 return;
11638 }
11639
9360ffd1 11640 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11641 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11642 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11643 (ie_len && ie &&
11644 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11645 goto nla_put_failure;
c93b5e71 11646
3b7b72ee 11647 genlmsg_end(msg, hdr);
c93b5e71 11648
68eb5503 11649 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11650 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11651 return;
11652
11653 nla_put_failure:
11654 genlmsg_cancel(msg, hdr);
11655 nlmsg_free(msg);
11656}
947add36 11657EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11658
a3b8b056
JM		 11659void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11660 struct net_device *netdev, const u8 *addr,
11661 enum nl80211_key_type key_type, int key_id,
e6d6e342 11662 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11663{
11664 struct sk_buff *msg;
11665 void *hdr;
11666
e6d6e342 11667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11668 if (!msg)
11669 return;
11670
11671 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11672 if (!hdr) {
11673 nlmsg_free(msg);
11674 return;
11675 }
11676
9360ffd1
DM		 11677 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11678 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11679 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11680 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11681 (key_id != -1 &&
11682 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11683 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11684 goto nla_put_failure;
a3b8b056 11685
3b7b72ee 11686 genlmsg_end(msg, hdr);
a3b8b056 11687
68eb5503 11688 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11689 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11690 return;
11691
11692 nla_put_failure:
11693 genlmsg_cancel(msg, hdr);
11694 nlmsg_free(msg);
11695}
11696
6bad8766
LR		 11697void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11698 struct ieee80211_channel *channel_before,
11699 struct ieee80211_channel *channel_after)
11700{
11701 struct sk_buff *msg;
11702 void *hdr;
11703 struct nlattr *nl_freq;
11704
fd2120ca 11705 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11706 if (!msg)
11707 return;
11708
11709 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11710 if (!hdr) {
11711 nlmsg_free(msg);
11712 return;
11713 }
11714
11715 /*
11716 * Since we are applying the beacon hint to a wiphy we know its
11717 * wiphy_idx is valid
11718 */
9360ffd1
DM		 11719 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11720 goto nla_put_failure;
6bad8766
LR		 11721
11722 /* Before */
11723 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11724 if (!nl_freq)
11725 goto nla_put_failure;
cdc89b97 11726 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11727 goto nla_put_failure;
11728 nla_nest_end(msg, nl_freq);
11729
11730 /* After */
11731 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11732 if (!nl_freq)
11733 goto nla_put_failure;
cdc89b97 11734 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11735 goto nla_put_failure;
11736 nla_nest_end(msg, nl_freq);
11737
3b7b72ee 11738 genlmsg_end(msg, hdr);
6bad8766 11739
463d0183 11740 rcu_read_lock();
68eb5503 11741 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11742 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11743 rcu_read_unlock();
6bad8766
LR		 11744
11745 return;
11746
11747nla_put_failure:
11748 genlmsg_cancel(msg, hdr);
11749 nlmsg_free(msg);
11750}
11751
9588bbd5
JM		 11752static void nl80211_send_remain_on_chan_event(
11753 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11754 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11755 struct ieee80211_channel *chan,
9588bbd5
JM		 11756 unsigned int duration, gfp_t gfp)
11757{
11758 struct sk_buff *msg;
11759 void *hdr;
11760
11761 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11762 if (!msg)
11763 return;
11764
11765 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11766 if (!hdr) {
11767 nlmsg_free(msg);
11768 return;
11769 }
11770
9360ffd1 11771 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11772 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11773 wdev->netdev->ifindex)) ||
00f53350 11774 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11775 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11776 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11777 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11778 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11779 goto nla_put_failure;
9588bbd5 11780
9360ffd1
DM		 11781 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11782 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11783 goto nla_put_failure;
9588bbd5 11784
3b7b72ee 11785 genlmsg_end(msg, hdr);
9588bbd5 11786
68eb5503 11787 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11788 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11789 return;
11790
11791 nla_put_failure:
11792 genlmsg_cancel(msg, hdr);
11793 nlmsg_free(msg);
11794}
11795
947add36
JB		 11796void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11797 struct ieee80211_channel *chan,
11798 unsigned int duration, gfp_t gfp)
9588bbd5 11799{
947add36 11800 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11801 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11802
11803 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11804 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11805 rdev, wdev, cookie, chan,
42d97a59 11806 duration, gfp);
9588bbd5 11807}
947add36 11808EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11809
947add36
JB		 11810void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11811 struct ieee80211_channel *chan,
11812 gfp_t gfp)
9588bbd5 11813{
947add36 11814 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11815 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11816
11817 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11818 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11819 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11820}
947add36 11821EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11822
947add36
JB		 11823void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11824 struct station_info *sinfo, gfp_t gfp)
98b62183 11825{
947add36 11826 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11827 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11828 struct sk_buff *msg;
11829
947add36
JB		 11830 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11831
58050fce 11832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11833 if (!msg)
11834 return;
11835
cf5ead82 11836 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 11837 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11838 nlmsg_free(msg);
11839 return;
11840 }
11841
68eb5503 11842 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11843 NL80211_MCGRP_MLME, gfp);
98b62183 11844}
947add36 11845EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11846
cf5ead82
JB		 11847void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11848 struct station_info *sinfo, gfp_t gfp)
ec15e68b 11849{
947add36 11850 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11851 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 11852 struct sk_buff *msg;
cf5ead82
JB		 11853 struct station_info empty_sinfo = {};
11854
11855 if (!sinfo)
11856 sinfo = &empty_sinfo;
ec15e68b 11857
947add36
JB		 11858 trace_cfg80211_del_sta(dev, mac_addr);
11859
58050fce 11860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11861 if (!msg)
11862 return;
11863
cf5ead82 11864 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 11865 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 11866 nlmsg_free(msg);
11867 return;
11868 }
11869
68eb5503 11870 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11871 NL80211_MCGRP_MLME, gfp);
ec15e68b 11872}
cf5ead82 11873EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 11874
947add36
JB		 11875void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11876 enum nl80211_connect_failed_reason reason,
11877 gfp_t gfp)
ed44a951 11878{
947add36 11879 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11880 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11881 struct sk_buff *msg;
11882 void *hdr;
11883
11884 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11885 if (!msg)
11886 return;
11887
11888 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11889 if (!hdr) {
11890 nlmsg_free(msg);
11891 return;
11892 }
11893
11894 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11895 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11896 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11897 goto nla_put_failure;
11898
11899 genlmsg_end(msg, hdr);
11900
68eb5503 11901 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11902 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11903 return;
11904
11905 nla_put_failure:
11906 genlmsg_cancel(msg, hdr);
11907 nlmsg_free(msg);
11908}
947add36 11909EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11910
b92ab5d8
JB		 11911static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11912 const u8 *addr, gfp_t gfp)
28946da7
JB		 11913{
11914 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11915 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11916 struct sk_buff *msg;
11917 void *hdr;
15e47304 11918 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11919
15e47304 11920 if (!nlportid)
28946da7
JB		 11921 return false;
11922
11923 msg = nlmsg_new(100, gfp);
11924 if (!msg)
11925 return true;
11926
b92ab5d8 11927 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11928 if (!hdr) {
11929 nlmsg_free(msg);
11930 return true;
11931 }
11932
9360ffd1
DM		 11933 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11934 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11935 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11936 goto nla_put_failure;
28946da7 11937
9c90a9f6 11938 genlmsg_end(msg, hdr);
15e47304 11939 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11940 return true;
11941
11942 nla_put_failure:
11943 genlmsg_cancel(msg, hdr);
11944 nlmsg_free(msg);
11945 return true;
11946}
11947
947add36
JB		 11948bool cfg80211_rx_spurious_frame(struct net_device *dev,
11949 const u8 *addr, gfp_t gfp)
b92ab5d8 11950{
947add36
JB		 11951 struct wireless_dev *wdev = dev->ieee80211_ptr;
11952 bool ret;
11953
11954 trace_cfg80211_rx_spurious_frame(dev, addr);
11955
11956 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11957 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11958 trace_cfg80211_return_bool(false);
11959 return false;
11960 }
11961 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11962 addr, gfp);
11963 trace_cfg80211_return_bool(ret);
11964 return ret;
b92ab5d8 11965}
947add36 11966EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11967
947add36
JB		 11968bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11969 const u8 *addr, gfp_t gfp)
b92ab5d8 11970{
947add36
JB		 11971 struct wireless_dev *wdev = dev->ieee80211_ptr;
11972 bool ret;
11973
11974 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11975
11976 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11977 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11978 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11979 trace_cfg80211_return_bool(false);
11980 return false;
11981 }
11982 ret = __nl80211_unexpected_frame(dev,
11983 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11984 addr, gfp);
11985 trace_cfg80211_return_bool(ret);
11986 return ret;
b92ab5d8 11987}
947add36 11988EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11989
2e161f78 11990int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11991 struct wireless_dev *wdev, u32 nlportid,
804483e9 11992 int freq, int sig_dbm,
19504cf5 11993 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11994{
71bbc994 11995 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11996 struct sk_buff *msg;
11997 void *hdr;
026331c4
JM		 11998
11999 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12000 if (!msg)
12001 return -ENOMEM;
12002
2e161f78 12003 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 12004 if (!hdr) {
12005 nlmsg_free(msg);
12006 return -ENOMEM;
12007 }
12008
9360ffd1 12009 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12010 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12011 netdev->ifindex)) ||
a838490b 12012 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12013 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12014 (sig_dbm &&
12015 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 12016 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12017 (flags &&
12018 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 12019 goto nla_put_failure;
026331c4 12020
3b7b72ee 12021 genlmsg_end(msg, hdr);
026331c4 12022
15e47304 12023 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 12024
12025 nla_put_failure:
12026 genlmsg_cancel(msg, hdr);
12027 nlmsg_free(msg);
12028 return -ENOBUFS;
12029}
12030
947add36
JB		 12031void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12032 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 12033{
947add36 12034 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12035 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12036 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12037 struct sk_buff *msg;
12038 void *hdr;
12039
947add36
JB		 12040 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12041
026331c4
JM		 12042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12043 if (!msg)
12044 return;
12045
2e161f78 12046 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12047 if (!hdr) {
12048 nlmsg_free(msg);
12049 return;
12050 }
12051
9360ffd1 12052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12053 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12054 netdev->ifindex)) ||
a838490b 12055 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12056 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12057 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12058 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12059 goto nla_put_failure;
026331c4 12060
3b7b72ee 12061 genlmsg_end(msg, hdr);
026331c4 12062
68eb5503 12063 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12064 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12065 return;
12066
12067 nla_put_failure:
12068 genlmsg_cancel(msg, hdr);
12069 nlmsg_free(msg);
12070}
947add36 12071EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12072
5b97f49d
JB		 12073static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12074 const char *mac, gfp_t gfp)
d6dc1a38 12075{
947add36 12076 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12077 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12078 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12079 void **cb;
947add36 12080
d6dc1a38 12081 if (!msg)
5b97f49d 12082 return NULL;
d6dc1a38 12083
5b97f49d
JB		 12084 cb = (void **)msg->cb;
12085
12086 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12087 if (!cb[0]) {
d6dc1a38 12088 nlmsg_free(msg);
5b97f49d 12089 return NULL;
d6dc1a38
JO		 12090 }
12091
9360ffd1 12092 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12093 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12094 goto nla_put_failure;
d6dc1a38 12095
5b97f49d 12096 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12097 goto nla_put_failure;
12098
5b97f49d
JB		 12099 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12100 if (!cb[1])
9360ffd1 12101 goto nla_put_failure;
d6dc1a38 12102
5b97f49d 12103 cb[2] = rdev;
d6dc1a38 12104
5b97f49d
JB		 12105 return msg;
12106 nla_put_failure:
12107 nlmsg_free(msg);
12108 return NULL;
12109}
12110
12111static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12112{
12113 void **cb = (void **)msg->cb;
12114 struct cfg80211_registered_device *rdev = cb[2];
12115
12116 nla_nest_end(msg, cb[1]);
12117 genlmsg_end(msg, cb[0]);
12118
12119 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12120
68eb5503 12121 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12122 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12123}
12124
12125void cfg80211_cqm_rssi_notify(struct net_device *dev,
12126 enum nl80211_cqm_rssi_threshold_event rssi_event,
12127 gfp_t gfp)
12128{
12129 struct sk_buff *msg;
12130
12131 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12132
98f03342
JB		 12133 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12134 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12135 return;
12136
5b97f49d
JB		 12137 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12138 if (!msg)
12139 return;
12140
12141 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12142 rssi_event))
12143 goto nla_put_failure;
12144
12145 cfg80211_send_cqm(msg, gfp);
12146
d6dc1a38
JO		 12147 return;
12148
12149 nla_put_failure:
d6dc1a38
JO		 12150 nlmsg_free(msg);
12151}
947add36 12152EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12153
5b97f49d
JB		 12154void cfg80211_cqm_txe_notify(struct net_device *dev,
12155 const u8 *peer, u32 num_packets,
12156 u32 rate, u32 intvl, gfp_t gfp)
12157{
12158 struct sk_buff *msg;
12159
12160 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12161 if (!msg)
12162 return;
12163
12164 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12165 goto nla_put_failure;
12166
12167 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12168 goto nla_put_failure;
12169
12170 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12171 goto nla_put_failure;
12172
12173 cfg80211_send_cqm(msg, gfp);
12174 return;
12175
12176 nla_put_failure:
12177 nlmsg_free(msg);
12178}
12179EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12180
12181void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12182 const u8 *peer, u32 num_packets, gfp_t gfp)
12183{
12184 struct sk_buff *msg;
12185
12186 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12187
12188 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12189 if (!msg)
12190 return;
12191
12192 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12193 goto nla_put_failure;
12194
12195 cfg80211_send_cqm(msg, gfp);
12196 return;
12197
12198 nla_put_failure:
12199 nlmsg_free(msg);
12200}
12201EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12202
98f03342
JB		 12203void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12204{
12205 struct sk_buff *msg;
12206
12207 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12208 if (!msg)
12209 return;
12210
12211 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12212 goto nla_put_failure;
12213
12214 cfg80211_send_cqm(msg, gfp);
12215 return;
12216
12217 nla_put_failure:
12218 nlmsg_free(msg);
12219}
12220EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12221
947add36
JB		 12222static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12223 struct net_device *netdev, const u8 *bssid,
12224 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12225{
12226 struct sk_buff *msg;
12227 struct nlattr *rekey_attr;
12228 void *hdr;
12229
58050fce 12230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12231 if (!msg)
12232 return;
12233
12234 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12235 if (!hdr) {
12236 nlmsg_free(msg);
12237 return;
12238 }
12239
9360ffd1
DM		 12240 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12241 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12242 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12243 goto nla_put_failure;
e5497d76
JB		 12244
12245 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12246 if (!rekey_attr)
12247 goto nla_put_failure;
12248
9360ffd1
DM		 12249 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12250 NL80211_REPLAY_CTR_LEN, replay_ctr))
12251 goto nla_put_failure;
e5497d76
JB		 12252
12253 nla_nest_end(msg, rekey_attr);
12254
3b7b72ee 12255 genlmsg_end(msg, hdr);
e5497d76 12256
68eb5503 12257 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12258 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12259 return;
12260
12261 nla_put_failure:
12262 genlmsg_cancel(msg, hdr);
12263 nlmsg_free(msg);
12264}
12265
947add36
JB		 12266void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12267 const u8 *replay_ctr, gfp_t gfp)
12268{
12269 struct wireless_dev *wdev = dev->ieee80211_ptr;
12270 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12271 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12272
12273 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12274 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12275}
12276EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12277
12278static void
12279nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12280 struct net_device *netdev, int index,
12281 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12282{
12283 struct sk_buff *msg;
12284 struct nlattr *attr;
12285 void *hdr;
12286
58050fce 12287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12288 if (!msg)
12289 return;
12290
12291 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12292 if (!hdr) {
12293 nlmsg_free(msg);
12294 return;
12295 }
12296
9360ffd1
DM		 12297 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12298 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12299 goto nla_put_failure;
c9df56b4
JM		 12300
12301 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12302 if (!attr)
12303 goto nla_put_failure;
12304
9360ffd1
DM		 12305 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12306 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12307 (preauth &&
12308 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12309 goto nla_put_failure;
c9df56b4
JM		 12310
12311 nla_nest_end(msg, attr);
12312
3b7b72ee 12313 genlmsg_end(msg, hdr);
c9df56b4 12314
68eb5503 12315 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12316 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12317 return;
12318
12319 nla_put_failure:
12320 genlmsg_cancel(msg, hdr);
12321 nlmsg_free(msg);
12322}
12323
947add36
JB		 12324void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12325 const u8 *bssid, bool preauth, gfp_t gfp)
12326{
12327 struct wireless_dev *wdev = dev->ieee80211_ptr;
12328 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12329 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12330
12331 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12332 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12333}
12334EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12335
12336static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12337 struct net_device *netdev,
12338 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12339 gfp_t gfp,
12340 enum nl80211_commands notif,
12341 u8 count)
5314526b
TP		 12342{
12343 struct sk_buff *msg;
12344 void *hdr;
12345
58050fce 12346 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12347 if (!msg)
12348 return;
12349
f8d7552e 12350 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12351 if (!hdr) {
12352 nlmsg_free(msg);
12353 return;
12354 }
12355
683b6d3b
JB		 12356 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12357 goto nla_put_failure;
12358
12359 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12360 goto nla_put_failure;
5314526b 12361
f8d7552e
LC		 12362 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12363 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12364 goto nla_put_failure;
12365
5314526b
TP		 12366 genlmsg_end(msg, hdr);
12367
68eb5503 12368 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12369 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12370 return;
12371
12372 nla_put_failure:
12373 genlmsg_cancel(msg, hdr);
12374 nlmsg_free(msg);
12375}
12376
947add36
JB		 12377void cfg80211_ch_switch_notify(struct net_device *dev,
12378 struct cfg80211_chan_def *chandef)
84f10708 12379{
947add36
JB		 12380 struct wireless_dev *wdev = dev->ieee80211_ptr;
12381 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12382 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12383
e487eaeb 12384 ASSERT_WDEV_LOCK(wdev);
947add36 12385
e487eaeb 12386 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12387
9e0e2961 12388 wdev->chandef = *chandef;
96f55f12 12389 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12390 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12391 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12392}
12393EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12394
f8d7552e
LC		 12395void cfg80211_ch_switch_started_notify(struct net_device *dev,
12396 struct cfg80211_chan_def *chandef,
12397 u8 count)
12398{
12399 struct wireless_dev *wdev = dev->ieee80211_ptr;
12400 struct wiphy *wiphy = wdev->wiphy;
12401 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12402
12403 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12404
12405 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12406 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12407}
12408EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12409
04f39047
SW		 12410void
12411nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12412 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12413 enum nl80211_radar_event event,
12414 struct net_device *netdev, gfp_t gfp)
12415{
12416 struct sk_buff *msg;
12417 void *hdr;
12418
12419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12420 if (!msg)
12421 return;
12422
12423 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12424 if (!hdr) {
12425 nlmsg_free(msg);
12426 return;
12427 }
12428
12429 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12430 goto nla_put_failure;
12431
12432 /* NOP and radar events don't need a netdev parameter */
12433 if (netdev) {
12434 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12435
12436 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12437 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12438 goto nla_put_failure;
12439 }
12440
12441 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12442 goto nla_put_failure;
12443
12444 if (nl80211_send_chandef(msg, chandef))
12445 goto nla_put_failure;
12446
9c90a9f6 12447 genlmsg_end(msg, hdr);
04f39047 12448
68eb5503 12449 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12450 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12451 return;
12452
12453 nla_put_failure:
12454 genlmsg_cancel(msg, hdr);
12455 nlmsg_free(msg);
12456}
12457
7f6cf311
JB		 12458void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12459 u64 cookie, bool acked, gfp_t gfp)
12460{
12461 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12462 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12463 struct sk_buff *msg;
12464 void *hdr;
7f6cf311 12465
4ee3e063
BL		 12466 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12467
58050fce 12468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12469
7f6cf311
JB		 12470 if (!msg)
12471 return;
12472
12473 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12474 if (!hdr) {
12475 nlmsg_free(msg);
12476 return;
12477 }
12478
9360ffd1
DM		 12479 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12480 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12481 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12482 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12483 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12484 goto nla_put_failure;
7f6cf311 12485
9c90a9f6 12486 genlmsg_end(msg, hdr);
7f6cf311 12487
68eb5503 12488 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12489 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12490 return;
12491
12492 nla_put_failure:
12493 genlmsg_cancel(msg, hdr);
12494 nlmsg_free(msg);
12495}
12496EXPORT_SYMBOL(cfg80211_probe_status);
12497
5e760230
JB		 12498void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12499 const u8 *frame, size_t len,
37c73b5f 12500 int freq, int sig_dbm)
5e760230 12501{
f26cbf40 12502 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12503 struct sk_buff *msg;
12504 void *hdr;
37c73b5f 12505 struct cfg80211_beacon_registration *reg;
5e760230 12506
4ee3e063
BL		 12507 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12508
37c73b5f
BG		 12509 spin_lock_bh(&rdev->beacon_registrations_lock);
12510 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12511 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12512 if (!msg) {
12513 spin_unlock_bh(&rdev->beacon_registrations_lock);
12514 return;
12515 }
5e760230 12516
37c73b5f
BG		 12517 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12518 if (!hdr)
12519 goto nla_put_failure;
5e760230 12520
37c73b5f
BG		 12521 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12522 (freq &&
12523 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12524 (sig_dbm &&
12525 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12526 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12527 goto nla_put_failure;
5e760230 12528
37c73b5f 12529 genlmsg_end(msg, hdr);
5e760230 12530
37c73b5f
BG		 12531 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12532 }
12533 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12534 return;
12535
12536 nla_put_failure:
37c73b5f
BG		 12537 spin_unlock_bh(&rdev->beacon_registrations_lock);
12538 if (hdr)
12539 genlmsg_cancel(msg, hdr);
5e760230
JB		 12540 nlmsg_free(msg);
12541}
12542EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12543
cd8f7cb4 12544#ifdef CONFIG_PM
8cd4d456
LC		 12545static int cfg80211_net_detect_results(struct sk_buff *msg,
12546 struct cfg80211_wowlan_wakeup *wakeup)
12547{
12548 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12549 struct nlattr *nl_results, *nl_match, *nl_freqs;
12550 int i, j;
12551
12552 nl_results = nla_nest_start(
12553 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12554 if (!nl_results)
12555 return -EMSGSIZE;
12556
12557 for (i = 0; i < nd->n_matches; i++) {
12558 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12559
12560 nl_match = nla_nest_start(msg, i);
12561 if (!nl_match)
12562 break;
12563
12564 /* The SSID attribute is optional in nl80211, but for
12565 * simplicity reasons it's always present in the
12566 * cfg80211 structure. If a driver can't pass the
12567 * SSID, that needs to be changed. A zero length SSID
12568 * is still a valid SSID (wildcard), so it cannot be
12569 * used for this purpose.
12570 */
12571 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12572 match->ssid.ssid)) {
12573 nla_nest_cancel(msg, nl_match);
12574 goto out;
12575 }
12576
12577 if (match->n_channels) {
12578 nl_freqs = nla_nest_start(
12579 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12580 if (!nl_freqs) {
12581 nla_nest_cancel(msg, nl_match);
12582 goto out;
12583 }
12584
12585 for (j = 0; j < match->n_channels; j++) {
12586 if (nla_put_u32(msg,
12587 NL80211_ATTR_WIPHY_FREQ,
12588 match->channels[j])) {
12589 nla_nest_cancel(msg, nl_freqs);
12590 nla_nest_cancel(msg, nl_match);
12591 goto out;
12592 }
12593 }
12594
12595 nla_nest_end(msg, nl_freqs);
12596 }
12597
12598 nla_nest_end(msg, nl_match);
12599 }
12600
12601out:
12602 nla_nest_end(msg, nl_results);
12603 return 0;
12604}
12605
cd8f7cb4
JB		 12606void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12607 struct cfg80211_wowlan_wakeup *wakeup,
12608 gfp_t gfp)
12609{
f26cbf40 12610 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12611 struct sk_buff *msg;
12612 void *hdr;
9c90a9f6 12613 int size = 200;
cd8f7cb4
JB		 12614
12615 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12616
12617 if (wakeup)
12618 size += wakeup->packet_present_len;
12619
12620 msg = nlmsg_new(size, gfp);
12621 if (!msg)
12622 return;
12623
12624 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12625 if (!hdr)
12626 goto free_msg;
12627
12628 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12629 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12630 goto free_msg;
12631
12632 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12633 wdev->netdev->ifindex))
12634 goto free_msg;
12635
12636 if (wakeup) {
12637 struct nlattr *reasons;
12638
12639 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12640 if (!reasons)
12641 goto free_msg;
cd8f7cb4
JB		 12642
12643 if (wakeup->disconnect &&
12644 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12645 goto free_msg;
12646 if (wakeup->magic_pkt &&
12647 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12648 goto free_msg;
12649 if (wakeup->gtk_rekey_failure &&
12650 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12651 goto free_msg;
12652 if (wakeup->eap_identity_req &&
12653 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12654 goto free_msg;
12655 if (wakeup->four_way_handshake &&
12656 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12657 goto free_msg;
12658 if (wakeup->rfkill_release &&
12659 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12660 goto free_msg;
12661
12662 if (wakeup->pattern_idx >= 0 &&
12663 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12664 wakeup->pattern_idx))
12665 goto free_msg;
12666
ae917c9f
JB		 12667 if (wakeup->tcp_match &&
12668 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12669 goto free_msg;
2a0e047e 12670
ae917c9f
JB		 12671 if (wakeup->tcp_connlost &&
12672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12673 goto free_msg;
2a0e047e 12674
ae917c9f
JB		 12675 if (wakeup->tcp_nomoretokens &&
12676 nla_put_flag(msg,
12677 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12678 goto free_msg;
2a0e047e 12679
cd8f7cb4
JB		 12680 if (wakeup->packet) {
12681 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12682 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12683
12684 if (!wakeup->packet_80211) {
12685 pkt_attr =
12686 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12687 len_attr =
12688 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12689 }
12690
12691 if (wakeup->packet_len &&
12692 nla_put_u32(msg, len_attr, wakeup->packet_len))
12693 goto free_msg;
12694
12695 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12696 wakeup->packet))
12697 goto free_msg;
12698 }
12699
8cd4d456
LC		 12700 if (wakeup->net_detect &&
12701 cfg80211_net_detect_results(msg, wakeup))
12702 goto free_msg;
12703
cd8f7cb4
JB		 12704 nla_nest_end(msg, reasons);
12705 }
12706
9c90a9f6 12707 genlmsg_end(msg, hdr);
cd8f7cb4 12708
68eb5503 12709 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12710 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12711 return;
12712
12713 free_msg:
12714 nlmsg_free(msg);
12715}
12716EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12717#endif
12718
3475b094
JM		 12719void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12720 enum nl80211_tdls_operation oper,
12721 u16 reason_code, gfp_t gfp)
12722{
12723 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12724 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12725 struct sk_buff *msg;
12726 void *hdr;
3475b094
JM		 12727
12728 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12729 reason_code);
12730
12731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12732 if (!msg)
12733 return;
12734
12735 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12736 if (!hdr) {
12737 nlmsg_free(msg);
12738 return;
12739 }
12740
12741 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12742 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12743 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12744 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12745 (reason_code > 0 &&
12746 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12747 goto nla_put_failure;
12748
9c90a9f6 12749 genlmsg_end(msg, hdr);
3475b094 12750
68eb5503 12751 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12752 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12753 return;
12754
12755 nla_put_failure:
12756 genlmsg_cancel(msg, hdr);
12757 nlmsg_free(msg);
12758}
12759EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12760
026331c4
JM		 12761static int nl80211_netlink_notify(struct notifier_block * nb,
12762 unsigned long state,
12763 void *_notify)
12764{
12765 struct netlink_notify *notify = _notify;
12766 struct cfg80211_registered_device *rdev;
12767 struct wireless_dev *wdev;
37c73b5f 12768 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12769
12770 if (state != NETLINK_URELEASE)
12771 return NOTIFY_DONE;
12772
12773 rcu_read_lock();
12774
5e760230 12775 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12776 bool schedule_destroy_work = false;
93a1e86c
JR		 12777 bool schedule_scan_stop = false;
12778 struct cfg80211_sched_scan_request *sched_scan_req =
12779 rcu_dereference(rdev->sched_scan_req);
12780
12781 if (sched_scan_req && notify->portid &&
12782 sched_scan_req->owner_nlportid == notify->portid)
12783 schedule_scan_stop = true;
78f22b6a
JB		 12784
12785 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12786 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12787
78f22b6a
JB		 12788 if (wdev->owner_nlportid == notify->portid)
12789 schedule_destroy_work = true;
12790 }
12791
37c73b5f
BG		 12792 spin_lock_bh(&rdev->beacon_registrations_lock);
12793 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12794 list) {
12795 if (reg->nlportid == notify->portid) {
12796 list_del(&reg->list);
12797 kfree(reg);
12798 break;
12799 }
12800 }
12801 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12802
12803 if (schedule_destroy_work) {
12804 struct cfg80211_iface_destroy *destroy;
12805
12806 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12807 if (destroy) {
12808 destroy->nlportid = notify->portid;
12809 spin_lock(&rdev->destroy_list_lock);
12810 list_add(&destroy->list, &rdev->destroy_list);
12811 spin_unlock(&rdev->destroy_list_lock);
12812 schedule_work(&rdev->destroy_work);
12813 }
93a1e86c
JR		 12814 } else if (schedule_scan_stop) {
12815 sched_scan_req->owner_nlportid = 0;
12816
12817 if (rdev->ops->sched_scan_stop &&
12818 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12819 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12820 }
5e760230 12821 }
026331c4
JM		 12822
12823 rcu_read_unlock();
12824
05050753
I		 12825 /*
12826 * It is possible that the user space process that is controlling the
12827 * indoor setting disappeared, so notify the regulatory core.
12828 */
12829 regulatory_netlink_notify(notify->portid);
6784c7db 12830 return NOTIFY_OK;
026331c4
JM		 12831}
12832
12833static struct notifier_block nl80211_netlink_notifier = {
12834 .notifier_call = nl80211_netlink_notify,
12835};
12836
355199e0
JM		 12837void cfg80211_ft_event(struct net_device *netdev,
12838 struct cfg80211_ft_event_params *ft_event)
12839{
12840 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12841 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12842 struct sk_buff *msg;
12843 void *hdr;
355199e0
JM		 12844
12845 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12846
12847 if (!ft_event->target_ap)
12848 return;
12849
12850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12851 if (!msg)
12852 return;
12853
12854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12855 if (!hdr)
12856 goto out;
355199e0 12857
ae917c9f
JB		 12858 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12859 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12860 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12861 goto out;
355199e0 12862
ae917c9f
JB		 12863 if (ft_event->ies &&
12864 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12865 goto out;
12866 if (ft_event->ric_ies &&
12867 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12868 ft_event->ric_ies))
12869 goto out;
355199e0 12870
9c90a9f6 12871 genlmsg_end(msg, hdr);
355199e0 12872
68eb5503 12873 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12874 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12875 return;
12876 out:
12877 nlmsg_free(msg);
355199e0
JM		 12878}
12879EXPORT_SYMBOL(cfg80211_ft_event);
12880
5de17984
AS		 12881void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12882{
12883 struct cfg80211_registered_device *rdev;
12884 struct sk_buff *msg;
12885 void *hdr;
12886 u32 nlportid;
12887
f26cbf40 12888 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12889 if (!rdev->crit_proto_nlportid)
12890 return;
12891
12892 nlportid = rdev->crit_proto_nlportid;
12893 rdev->crit_proto_nlportid = 0;
12894
12895 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12896 if (!msg)
12897 return;
12898
12899 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12900 if (!hdr)
12901 goto nla_put_failure;
12902
12903 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12904 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12905 goto nla_put_failure;
12906
12907 genlmsg_end(msg, hdr);
12908
12909 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12910 return;
12911
12912 nla_put_failure:
12913 if (hdr)
12914 genlmsg_cancel(msg, hdr);
12915 nlmsg_free(msg);
12916
12917}
12918EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12919
348baf0e
JB		 12920void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12921{
12922 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12923 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12924 struct sk_buff *msg;
12925 void *hdr;
12926
12927 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12928 if (!msg)
12929 return;
12930
12931 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12932 if (!hdr)
12933 goto out;
12934
12935 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12936 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12937 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12938 goto out;
12939
12940 genlmsg_end(msg, hdr);
12941
12942 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12943 NL80211_MCGRP_MLME, GFP_KERNEL);
12944 return;
12945 out:
12946 nlmsg_free(msg);
12947}
12948
55682965
JB		 12949/* initialisation/exit functions */
12950
12951int nl80211_init(void)
12952{
0d63cbb5 12953 int err;
55682965 12954
2a94fe48
JB		 12955 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12956 nl80211_mcgrps);
55682965
JB		 12957 if (err)
12958 return err;
12959
026331c4
JM		 12960 err = netlink_register_notifier(&nl80211_netlink_notifier);
12961 if (err)
12962 goto err_out;
12963
55682965
JB		 12964 return 0;
12965 err_out:
12966 genl_unregister_family(&nl80211_fam);
12967 return err;
12968}
12969
12970void nl80211_exit(void)
12971{
026331c4 12972 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12973 genl_unregister_family(&nl80211_fam);
12974}
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