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Revert "mac80211: keep sending peer candidate events while in listen state"
[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 },
55682965
JB		 402};
403
e31b8213 404/* policy for the key attributes */
b54452b0 405static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 406 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 407 [NL80211_KEY_IDX] = { .type = NLA_U8 },
408 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 409 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 410 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
411 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 412 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 413 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
414};
415
416/* policy for the key default flags */
417static const struct nla_policy
418nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
419 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
420 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 421};
422
ff1b6e69
JB		 423/* policy for WoWLAN attributes */
424static const struct nla_policy
425nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
426 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 430 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 434 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 435 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 436};
437
438static const struct nla_policy
439nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
440 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
441 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
442 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
443 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
444 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
445 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
447 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
448 },
449 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
450 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
451 },
452 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
453 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
454 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 455};
456
be29b99a
AK		 457/* policy for coalesce rule attributes */
458static const struct nla_policy
459nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
460 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
461 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
462 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
463};
464
e5497d76
JB		 465/* policy for GTK rekey offload attributes */
466static const struct nla_policy
467nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
468 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
469 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
470 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
471};
472
a1f1c21c
LC		 473static const struct nla_policy
474nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 475 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 476 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 477 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 478};
479
97990a06
JB		 480static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
481 struct netlink_callback *cb,
482 struct cfg80211_registered_device **rdev,
483 struct wireless_dev **wdev)
a043897a 484{
97990a06 485 int err;
a043897a 486
97990a06 487 rtnl_lock();
a043897a 488
97990a06
JB		 489 if (!cb->args[0]) {
490 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
491 nl80211_fam.attrbuf, nl80211_fam.maxattr,
492 nl80211_policy);
493 if (err)
494 goto out_unlock;
67748893 495
97990a06
JB		 496 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
497 nl80211_fam.attrbuf);
498 if (IS_ERR(*wdev)) {
499 err = PTR_ERR(*wdev);
500 goto out_unlock;
501 }
f26cbf40 502 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 503 /* 0 is the first index - add 1 to parse only once */
504 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 505 cb->args[1] = (*wdev)->identifier;
506 } else {
c319d50b
JB		 507 /* subtract the 1 again here */
508 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 509 struct wireless_dev *tmp;
67748893 510
97990a06
JB		 511 if (!wiphy) {
512 err = -ENODEV;
513 goto out_unlock;
514 }
f26cbf40 515 *rdev = wiphy_to_rdev(wiphy);
97990a06 516 *wdev = NULL;
67748893 517
97990a06
JB		 518 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
519 if (tmp->identifier == cb->args[1]) {
520 *wdev = tmp;
521 break;
522 }
523 }
67748893 524
97990a06
JB		 525 if (!*wdev) {
526 err = -ENODEV;
527 goto out_unlock;
528 }
67748893
JB		 529 }
530
67748893 531 return 0;
97990a06 532 out_unlock:
67748893
JB		 533 rtnl_unlock();
534 return err;
535}
536
97990a06 537static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 538{
67748893
JB		 539 rtnl_unlock();
540}
541
f4a11bb0
JB		 542/* IE validation */
543static bool is_valid_ie_attr(const struct nlattr *attr)
544{
545 const u8 *pos;
546 int len;
547
548 if (!attr)
549 return true;
550
551 pos = nla_data(attr);
552 len = nla_len(attr);
553
554 while (len) {
555 u8 elemlen;
556
557 if (len < 2)
558 return false;
559 len -= 2;
560
561 elemlen = pos[1];
562 if (elemlen > len)
563 return false;
564
565 len -= elemlen;
566 pos += 2 + elemlen;
567 }
568
569 return true;
570}
571
55682965 572/* message building helper */
15e47304 573static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 574 int flags, u8 cmd)
575{
576 /* since there is no private header just add the generic one */
15e47304 577 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 578}
579
5dab3b8a 580static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 581 struct ieee80211_channel *chan,
582 bool large)
5dab3b8a 583{
ea077c1c
RL		 584 /* Some channels must be completely excluded from the
585 * list to protect old user-space tools from breaking
586 */
587 if (!large && chan->flags &
588 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
589 return 0;
590
9360ffd1
DM		 591 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
592 chan->center_freq))
593 goto nla_put_failure;
5dab3b8a 594
9360ffd1
DM		 595 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
596 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
597 goto nla_put_failure;
8fe02e16
LR		 598 if (chan->flags & IEEE80211_CHAN_NO_IR) {
599 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
600 goto nla_put_failure;
601 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
602 goto nla_put_failure;
603 }
cdc89b97
JB		 604 if (chan->flags & IEEE80211_CHAN_RADAR) {
605 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
606 goto nla_put_failure;
607 if (large) {
608 u32 time;
609
610 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
611
612 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
613 chan->dfs_state))
614 goto nla_put_failure;
615 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
616 time))
617 goto nla_put_failure;
089027e5
JD		 618 if (nla_put_u32(msg,
619 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
620 chan->dfs_cac_ms))
621 goto nla_put_failure;
cdc89b97
JB		 622 }
623 }
5dab3b8a 624
fe1abafd
JB		 625 if (large) {
626 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
628 goto nla_put_failure;
629 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
631 goto nla_put_failure;
632 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
634 goto nla_put_failure;
635 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
637 goto nla_put_failure;
570dbde1
DS		 638 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
640 goto nla_put_failure;
641 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
643 goto nla_put_failure;
ea077c1c
RL		 644 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
645 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
646 goto nla_put_failure;
647 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
648 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
649 goto nla_put_failure;
fe1abafd
JB		 650 }
651
9360ffd1
DM		 652 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
653 DBM_TO_MBM(chan->max_power)))
654 goto nla_put_failure;
5dab3b8a
LR		 655
656 return 0;
657
658 nla_put_failure:
659 return -ENOBUFS;
660}
661
55682965
JB		 662/* netlink command implementations */
663
b9454e83
JB		 664struct key_parse {
665 struct key_params p;
666 int idx;
e31b8213 667 int type;
b9454e83 668 bool def, defmgmt;
dbd2fd65 669 bool def_uni, def_multi;
b9454e83
JB		 670};
671
672static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
673{
674 struct nlattr *tb[NL80211_KEY_MAX + 1];
675 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
676 nl80211_key_policy);
677 if (err)
678 return err;
679
680 k->def = !!tb[NL80211_KEY_DEFAULT];
681 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
682
dbd2fd65
JB		 683 if (k->def) {
684 k->def_uni = true;
685 k->def_multi = true;
686 }
687 if (k->defmgmt)
688 k->def_multi = true;
689
b9454e83
JB		 690 if (tb[NL80211_KEY_IDX])
691 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
692
693 if (tb[NL80211_KEY_DATA]) {
694 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
695 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
696 }
697
698 if (tb[NL80211_KEY_SEQ]) {
699 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
700 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
701 }
702
703 if (tb[NL80211_KEY_CIPHER])
704 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
705
e31b8213
JB		 706 if (tb[NL80211_KEY_TYPE]) {
707 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
708 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
709 return -EINVAL;
710 }
711
dbd2fd65
JB		 712 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
713 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 714 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
715 tb[NL80211_KEY_DEFAULT_TYPES],
716 nl80211_key_default_policy);
dbd2fd65
JB		 717 if (err)
718 return err;
719
720 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
721 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
722 }
723
b9454e83
JB		 724 return 0;
725}
726
727static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
728{
729 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
730 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
731 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
732 }
733
734 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
735 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
736 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
737 }
738
739 if (info->attrs[NL80211_ATTR_KEY_IDX])
740 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
741
742 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
743 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
744
745 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
746 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
747
dbd2fd65
JB		 748 if (k->def) {
749 k->def_uni = true;
750 k->def_multi = true;
751 }
752 if (k->defmgmt)
753 k->def_multi = true;
754
e31b8213
JB		 755 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
756 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
757 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
758 return -EINVAL;
759 }
760
dbd2fd65
JB		 761 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
762 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
763 int err = nla_parse_nested(
764 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
765 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
766 nl80211_key_default_policy);
767 if (err)
768 return err;
769
770 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
771 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
772 }
773
b9454e83
JB		 774 return 0;
775}
776
777static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
778{
779 int err;
780
781 memset(k, 0, sizeof(*k));
782 k->idx = -1;
e31b8213 783 k->type = -1;
b9454e83
JB		 784
785 if (info->attrs[NL80211_ATTR_KEY])
786 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
787 else
788 err = nl80211_parse_key_old(info, k);
789
790 if (err)
791 return err;
792
793 if (k->def && k->defmgmt)
794 return -EINVAL;
795
dbd2fd65
JB		 796 if (k->defmgmt) {
797 if (k->def_uni || !k->def_multi)
798 return -EINVAL;
799 }
800
b9454e83
JB		 801 if (k->idx != -1) {
802 if (k->defmgmt) {
803 if (k->idx < 4 || k->idx > 5)
804 return -EINVAL;
805 } else if (k->def) {
806 if (k->idx < 0 || k->idx > 3)
807 return -EINVAL;
808 } else {
809 if (k->idx < 0 || k->idx > 5)
810 return -EINVAL;
811 }
812 }
813
814 return 0;
815}
816
fffd0934
JB		 817static struct cfg80211_cached_keys *
818nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 819 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 820{
821 struct key_parse parse;
822 struct nlattr *key;
823 struct cfg80211_cached_keys *result;
824 int rem, err, def = 0;
825
826 result = kzalloc(sizeof(*result), GFP_KERNEL);
827 if (!result)
828 return ERR_PTR(-ENOMEM);
829
830 result->def = -1;
831 result->defmgmt = -1;
832
833 nla_for_each_nested(key, keys, rem) {
834 memset(&parse, 0, sizeof(parse));
835 parse.idx = -1;
836
837 err = nl80211_parse_key_new(key, &parse);
838 if (err)
839 goto error;
840 err = -EINVAL;
841 if (!parse.p.key)
842 goto error;
843 if (parse.idx < 0 || parse.idx > 4)
844 goto error;
845 if (parse.def) {
846 if (def)
847 goto error;
848 def = 1;
849 result->def = parse.idx;
dbd2fd65
JB		 850 if (!parse.def_uni || !parse.def_multi)
851 goto error;
fffd0934
JB		 852 } else if (parse.defmgmt)
853 goto error;
854 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 855 parse.idx, false, NULL);
fffd0934
JB		 856 if (err)
857 goto error;
858 result->params[parse.idx].cipher = parse.p.cipher;
859 result->params[parse.idx].key_len = parse.p.key_len;
860 result->params[parse.idx].key = result->data[parse.idx];
861 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 862
863 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
864 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
865 if (no_ht)
866 *no_ht = true;
867 }
fffd0934
JB		 868 }
869
870 return result;
871 error:
872 kfree(result);
873 return ERR_PTR(err);
874}
875
876static int nl80211_key_allowed(struct wireless_dev *wdev)
877{
878 ASSERT_WDEV_LOCK(wdev);
879
fffd0934
JB		 880 switch (wdev->iftype) {
881 case NL80211_IFTYPE_AP:
882 case NL80211_IFTYPE_AP_VLAN:
074ac8df 883 case NL80211_IFTYPE_P2P_GO:
ff973af7 884 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 885 break;
886 case NL80211_IFTYPE_ADHOC:
fffd0934 887 case NL80211_IFTYPE_STATION:
074ac8df 888 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 889 if (!wdev->current_bss)
fffd0934
JB		 890 return -ENOLINK;
891 break;
de4fcbad 892 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 893 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 894 case NL80211_IFTYPE_MONITOR:
895 case NL80211_IFTYPE_P2P_DEVICE:
896 case NL80211_IFTYPE_WDS:
897 case NUM_NL80211_IFTYPES:
fffd0934
JB		 898 return -EINVAL;
899 }
900
901 return 0;
902}
903
664834de
JM		 904static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
905 struct nlattr *tb)
906{
907 struct ieee80211_channel *chan;
908
909 if (tb == NULL)
910 return NULL;
911 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
912 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
913 return NULL;
914 return chan;
915}
916
7527a782
JB		 917static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
918{
919 struct nlattr *nl_modes = nla_nest_start(msg, attr);
920 int i;
921
922 if (!nl_modes)
923 goto nla_put_failure;
924
925 i = 0;
926 while (ifmodes) {
9360ffd1
DM		 927 if ((ifmodes & 1) && nla_put_flag(msg, i))
928 goto nla_put_failure;
7527a782
JB		 929 ifmodes >>= 1;
930 i++;
931 }
932
933 nla_nest_end(msg, nl_modes);
934 return 0;
935
936nla_put_failure:
937 return -ENOBUFS;
938}
939
940static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 941 struct sk_buff *msg,
942 bool large)
7527a782
JB		 943{
944 struct nlattr *nl_combis;
945 int i, j;
946
947 nl_combis = nla_nest_start(msg,
948 NL80211_ATTR_INTERFACE_COMBINATIONS);
949 if (!nl_combis)
950 goto nla_put_failure;
951
952 for (i = 0; i < wiphy->n_iface_combinations; i++) {
953 const struct ieee80211_iface_combination *c;
954 struct nlattr *nl_combi, *nl_limits;
955
956 c = &wiphy->iface_combinations[i];
957
958 nl_combi = nla_nest_start(msg, i + 1);
959 if (!nl_combi)
960 goto nla_put_failure;
961
962 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
963 if (!nl_limits)
964 goto nla_put_failure;
965
966 for (j = 0; j < c->n_limits; j++) {
967 struct nlattr *nl_limit;
968
969 nl_limit = nla_nest_start(msg, j + 1);
970 if (!nl_limit)
971 goto nla_put_failure;
9360ffd1
DM		 972 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
973 c->limits[j].max))
974 goto nla_put_failure;
7527a782
JB		 975 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
976 c->limits[j].types))
977 goto nla_put_failure;
978 nla_nest_end(msg, nl_limit);
979 }
980
981 nla_nest_end(msg, nl_limits);
982
9360ffd1
DM		 983 if (c->beacon_int_infra_match &&
984 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
985 goto nla_put_failure;
986 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
987 c->num_different_channels) ||
988 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
989 c->max_interfaces))
990 goto nla_put_failure;
cdc89b97 991 if (large &&
8c48b50a
FF		 992 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
993 c->radar_detect_widths) ||
994 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
995 c->radar_detect_regions)))
cdc89b97 996 goto nla_put_failure;
7527a782
JB		 997
998 nla_nest_end(msg, nl_combi);
999 }
1000
1001 nla_nest_end(msg, nl_combis);
1002
1003 return 0;
1004nla_put_failure:
1005 return -ENOBUFS;
1006}
1007
3713b4e3 1008#ifdef CONFIG_PM
b56cf720
JB		 1009static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1010 struct sk_buff *msg)
1011{
964dc9e2 1012 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1013 struct nlattr *nl_tcp;
1014
1015 if (!tcp)
1016 return 0;
1017
1018 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1019 if (!nl_tcp)
1020 return -ENOBUFS;
1021
1022 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1023 tcp->data_payload_max))
1024 return -ENOBUFS;
1025
1026 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1027 tcp->data_payload_max))
1028 return -ENOBUFS;
1029
1030 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1031 return -ENOBUFS;
1032
1033 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1034 sizeof(*tcp->tok), tcp->tok))
1035 return -ENOBUFS;
1036
1037 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1038 tcp->data_interval_max))
1039 return -ENOBUFS;
1040
1041 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1042 tcp->wake_payload_max))
1043 return -ENOBUFS;
1044
1045 nla_nest_end(msg, nl_tcp);
1046 return 0;
1047}
1048
3713b4e3 1049static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1050 struct cfg80211_registered_device *rdev,
b56cf720 1051 bool large)
55682965 1052{
3713b4e3 1053 struct nlattr *nl_wowlan;
55682965 1054
1b8ec87a 1055 if (!rdev->wiphy.wowlan)
3713b4e3 1056 return 0;
55682965 1057
3713b4e3
JB		 1058 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1059 if (!nl_wowlan)
1060 return -ENOBUFS;
9360ffd1 1061
1b8ec87a 1062 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1068 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1070 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1076 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1077 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1078 return -ENOBUFS;
9360ffd1 1079
1b8ec87a 1080 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1081 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1082 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1083 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1084 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1085 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1086 };
9360ffd1 1087
3713b4e3
JB		 1088 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1089 sizeof(pat), &pat))
1090 return -ENOBUFS;
1091 }
9360ffd1 1092
75453ccb
LC		 1093 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1094 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1095 rdev->wiphy.wowlan->max_nd_match_sets))
1096 return -ENOBUFS;
1097
1b8ec87a 1098 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1099 return -ENOBUFS;
1100
8cd4d456
LC		 1101 /* TODO: send wowlan net detect */
1102
3713b4e3 1103 nla_nest_end(msg, nl_wowlan);
9360ffd1 1104
3713b4e3
JB		 1105 return 0;
1106}
1107#endif
9360ffd1 1108
be29b99a 1109static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1110 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1111{
1112 struct nl80211_coalesce_rule_support rule;
1113
1b8ec87a 1114 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1115 return 0;
1116
1b8ec87a
ZG		 1117 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1118 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1119 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1120 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1121 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1122 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1123
1124 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1125 return -ENOBUFS;
1126
1127 return 0;
1128}
1129
3713b4e3
JB		 1130static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1131 struct ieee80211_supported_band *sband)
1132{
1133 struct nlattr *nl_rates, *nl_rate;
1134 struct ieee80211_rate *rate;
1135 int i;
87bbbe22 1136
3713b4e3
JB		 1137 /* add HT info */
1138 if (sband->ht_cap.ht_supported &&
1139 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1140 sizeof(sband->ht_cap.mcs),
1141 &sband->ht_cap.mcs) ||
1142 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1143 sband->ht_cap.cap) ||
1144 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1145 sband->ht_cap.ampdu_factor) ||
1146 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1147 sband->ht_cap.ampdu_density)))
1148 return -ENOBUFS;
afe0cbf8 1149
3713b4e3
JB		 1150 /* add VHT info */
1151 if (sband->vht_cap.vht_supported &&
1152 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1153 sizeof(sband->vht_cap.vht_mcs),
1154 &sband->vht_cap.vht_mcs) ||
1155 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1156 sband->vht_cap.cap)))
1157 return -ENOBUFS;
f59ac048 1158
3713b4e3
JB		 1159 /* add bitrates */
1160 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1161 if (!nl_rates)
1162 return -ENOBUFS;
ee688b00 1163
3713b4e3
JB		 1164 for (i = 0; i < sband->n_bitrates; i++) {
1165 nl_rate = nla_nest_start(msg, i);
1166 if (!nl_rate)
1167 return -ENOBUFS;
ee688b00 1168
3713b4e3
JB		 1169 rate = &sband->bitrates[i];
1170 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1171 rate->bitrate))
1172 return -ENOBUFS;
1173 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1174 nla_put_flag(msg,
1175 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1176 return -ENOBUFS;
ee688b00 1177
3713b4e3
JB		 1178 nla_nest_end(msg, nl_rate);
1179 }
d51626df 1180
3713b4e3 1181 nla_nest_end(msg, nl_rates);
bf0c111e 1182
3713b4e3
JB		 1183 return 0;
1184}
ee688b00 1185
3713b4e3
JB		 1186static int
1187nl80211_send_mgmt_stypes(struct sk_buff *msg,
1188 const struct ieee80211_txrx_stypes *mgmt_stypes)
1189{
1190 u16 stypes;
1191 struct nlattr *nl_ftypes, *nl_ifs;
1192 enum nl80211_iftype ift;
1193 int i;
ee688b00 1194
3713b4e3
JB		 1195 if (!mgmt_stypes)
1196 return 0;
5dab3b8a 1197
3713b4e3
JB		 1198 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1199 if (!nl_ifs)
1200 return -ENOBUFS;
e2f367f2 1201
3713b4e3
JB		 1202 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1203 nl_ftypes = nla_nest_start(msg, ift);
1204 if (!nl_ftypes)
1205 return -ENOBUFS;
1206 i = 0;
1207 stypes = mgmt_stypes[ift].tx;
1208 while (stypes) {
1209 if ((stypes & 1) &&
1210 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1211 (i << 4) | IEEE80211_FTYPE_MGMT))
1212 return -ENOBUFS;
1213 stypes >>= 1;
1214 i++;
ee688b00 1215 }
3713b4e3
JB		 1216 nla_nest_end(msg, nl_ftypes);
1217 }
ee688b00 1218
3713b4e3 1219 nla_nest_end(msg, nl_ifs);
ee688b00 1220
3713b4e3
JB		 1221 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1222 if (!nl_ifs)
1223 return -ENOBUFS;
ee688b00 1224
3713b4e3
JB		 1225 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1226 nl_ftypes = nla_nest_start(msg, ift);
1227 if (!nl_ftypes)
1228 return -ENOBUFS;
1229 i = 0;
1230 stypes = mgmt_stypes[ift].rx;
1231 while (stypes) {
1232 if ((stypes & 1) &&
1233 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1234 (i << 4) | IEEE80211_FTYPE_MGMT))
1235 return -ENOBUFS;
1236 stypes >>= 1;
1237 i++;
1238 }
1239 nla_nest_end(msg, nl_ftypes);
1240 }
1241 nla_nest_end(msg, nl_ifs);
ee688b00 1242
3713b4e3
JB		 1243 return 0;
1244}
ee688b00 1245
86e8cf98
JB		 1246struct nl80211_dump_wiphy_state {
1247 s64 filter_wiphy;
1248 long start;
1249 long split_start, band_start, chan_start;
1250 bool split;
1251};
1252
1b8ec87a 1253static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1254 enum nl80211_commands cmd,
3713b4e3 1255 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1256 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1257{
1258 void *hdr;
1259 struct nlattr *nl_bands, *nl_band;
1260 struct nlattr *nl_freqs, *nl_freq;
1261 struct nlattr *nl_cmds;
1262 enum ieee80211_band band;
1263 struct ieee80211_channel *chan;
1264 int i;
1265 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1266 rdev->wiphy.mgmt_stypes;
fe1abafd 1267 u32 features;
ee688b00 1268
3bb20556 1269 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1270 if (!hdr)
1271 return -ENOBUFS;
ee688b00 1272
86e8cf98
JB		 1273 if (WARN_ON(!state))
1274 return -EINVAL;
ee688b00 1275
1b8ec87a 1276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1277 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1278 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1279 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1280 cfg80211_rdev_list_generation))
8fdc621d
JB		 1281 goto nla_put_failure;
1282
3bb20556
JB		 1283 if (cmd != NL80211_CMD_NEW_WIPHY)
1284 goto finish;
1285
86e8cf98 1286 switch (state->split_start) {
3713b4e3
JB		 1287 case 0:
1288 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1289 rdev->wiphy.retry_short) ||
3713b4e3 1290 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1291 rdev->wiphy.retry_long) ||
3713b4e3 1292 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1293 rdev->wiphy.frag_threshold) ||
3713b4e3 1294 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1295 rdev->wiphy.rts_threshold) ||
3713b4e3 1296 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1297 rdev->wiphy.coverage_class) ||
3713b4e3 1298 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1299 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1300 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1301 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1302 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1303 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1304 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1305 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1306 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1307 rdev->wiphy.max_match_sets))
9360ffd1 1308 goto nla_put_failure;
3713b4e3 1309
1b8ec87a 1310 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1311 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1312 goto nla_put_failure;
1b8ec87a 1313 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1314 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1315 goto nla_put_failure;
1b8ec87a 1316 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1317 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1318 goto nla_put_failure;
1b8ec87a 1319 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1320 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1321 goto nla_put_failure;
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1323 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1324 goto nla_put_failure;
1b8ec87a 1325 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1326 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1327 goto nla_put_failure;
86e8cf98
JB		 1328 state->split_start++;
1329 if (state->split)
3713b4e3
JB		 1330 break;
1331 case 1:
1332 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1333 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1334 rdev->wiphy.cipher_suites))
3713b4e3 1335 goto nla_put_failure;
4745fc09 1336
3713b4e3 1337 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1338 rdev->wiphy.max_num_pmkids))
3713b4e3 1339 goto nla_put_failure;
b23aa676 1340
1b8ec87a 1341 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1342 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1343 goto nla_put_failure;
b23aa676 1344
3713b4e3 1345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1346 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1347 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1348 rdev->wiphy.available_antennas_rx))
9360ffd1 1349 goto nla_put_failure;
b23aa676 1350
1b8ec87a 1351 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1352 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1353 rdev->wiphy.probe_resp_offload))
3713b4e3 1354 goto nla_put_failure;
8fdc621d 1355
1b8ec87a
ZG		 1356 if ((rdev->wiphy.available_antennas_tx ||
1357 rdev->wiphy.available_antennas_rx) &&
1358 rdev->ops->get_antenna) {
3713b4e3
JB		 1359 u32 tx_ant = 0, rx_ant = 0;
1360 int res;
1b8ec87a 1361 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1362 if (!res) {
1363 if (nla_put_u32(msg,
1364 NL80211_ATTR_WIPHY_ANTENNA_TX,
1365 tx_ant) ||
1366 nla_put_u32(msg,
1367 NL80211_ATTR_WIPHY_ANTENNA_RX,
1368 rx_ant))
1369 goto nla_put_failure;
1370 }
1371 }
a293911d 1372
86e8cf98
JB		 1373 state->split_start++;
1374 if (state->split)
3713b4e3
JB		 1375 break;
1376 case 2:
1377 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1378 rdev->wiphy.interface_modes))
3713b4e3 1379 goto nla_put_failure;
86e8cf98
JB		 1380 state->split_start++;
1381 if (state->split)
3713b4e3
JB		 1382 break;
1383 case 3:
1384 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1385 if (!nl_bands)
1386 goto nla_put_failure;
f7ca38df 1387
86e8cf98
JB		 1388 for (band = state->band_start;
1389 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1390 struct ieee80211_supported_band *sband;
2e161f78 1391
1b8ec87a 1392 sband = rdev->wiphy.bands[band];
2e161f78 1393
3713b4e3
JB		 1394 if (!sband)
1395 continue;
1396
1397 nl_band = nla_nest_start(msg, band);
1398 if (!nl_band)
2e161f78 1399 goto nla_put_failure;
3713b4e3 1400
86e8cf98 1401 switch (state->chan_start) {
3713b4e3
JB		 1402 case 0:
1403 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1404 goto nla_put_failure;
86e8cf98
JB		 1405 state->chan_start++;
1406 if (state->split)
3713b4e3
JB		 1407 break;
1408 default:
1409 /* add frequencies */
1410 nl_freqs = nla_nest_start(
1411 msg, NL80211_BAND_ATTR_FREQS);
1412 if (!nl_freqs)
1413 goto nla_put_failure;
1414
86e8cf98 1415 for (i = state->chan_start - 1;
3713b4e3
JB		 1416 i < sband->n_channels;
1417 i++) {
1418 nl_freq = nla_nest_start(msg, i);
1419 if (!nl_freq)
1420 goto nla_put_failure;
1421
1422 chan = &sband->channels[i];
1423
86e8cf98
JB		 1424 if (nl80211_msg_put_channel(
1425 msg, chan,
1426 state->split))
3713b4e3
JB		 1427 goto nla_put_failure;
1428
1429 nla_nest_end(msg, nl_freq);
86e8cf98 1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 }
1433 if (i < sband->n_channels)
86e8cf98 1434 state->chan_start = i + 2;
3713b4e3 1435 else
86e8cf98 1436 state->chan_start = 0;
3713b4e3
JB		 1437 nla_nest_end(msg, nl_freqs);
1438 }
1439
1440 nla_nest_end(msg, nl_band);
1441
86e8cf98 1442 if (state->split) {
3713b4e3 1443 /* start again here */
86e8cf98 1444 if (state->chan_start)
3713b4e3
JB		 1445 band--;
1446 break;
2e161f78 1447 }
2e161f78 1448 }
3713b4e3 1449 nla_nest_end(msg, nl_bands);
2e161f78 1450
3713b4e3 1451 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1452 state->band_start = band + 1;
3713b4e3 1453 else
86e8cf98 1454 state->band_start = 0;
74b70a4e 1455
3713b4e3 1456 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1457 if (state->band_start == 0 && state->chan_start == 0)
1458 state->split_start++;
1459 if (state->split)
3713b4e3
JB		 1460 break;
1461 case 4:
1462 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1463 if (!nl_cmds)
2e161f78
JB		 1464 goto nla_put_failure;
1465
3713b4e3
JB		 1466 i = 0;
1467#define CMD(op, n) \
1468 do { \
1b8ec87a 1469 if (rdev->ops->op) { \
3713b4e3
JB		 1470 i++; \
1471 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1472 goto nla_put_failure; \
1473 } \
1474 } while (0)
1475
1476 CMD(add_virtual_intf, NEW_INTERFACE);
1477 CMD(change_virtual_intf, SET_INTERFACE);
1478 CMD(add_key, NEW_KEY);
1479 CMD(start_ap, START_AP);
1480 CMD(add_station, NEW_STATION);
1481 CMD(add_mpath, NEW_MPATH);
1482 CMD(update_mesh_config, SET_MESH_CONFIG);
1483 CMD(change_bss, SET_BSS);
1484 CMD(auth, AUTHENTICATE);
1485 CMD(assoc, ASSOCIATE);
1486 CMD(deauth, DEAUTHENTICATE);
1487 CMD(disassoc, DISASSOCIATE);
1488 CMD(join_ibss, JOIN_IBSS);
1489 CMD(join_mesh, JOIN_MESH);
1490 CMD(set_pmksa, SET_PMKSA);
1491 CMD(del_pmksa, DEL_PMKSA);
1492 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1494 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1495 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1496 CMD(mgmt_tx, FRAME);
1497 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1498 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1499 i++;
1500 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1501 goto nla_put_failure;
2e161f78 1502 }
1b8ec87a
ZG		 1503 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1504 rdev->ops->join_mesh) {
3713b4e3
JB		 1505 i++;
1506 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1507 goto nla_put_failure;
1508 }
1509 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1510 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1511 CMD(tdls_mgmt, TDLS_MGMT);
1512 CMD(tdls_oper, TDLS_OPER);
1513 }
1b8ec87a 1514 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1515 CMD(sched_scan_start, START_SCHED_SCAN);
1516 CMD(probe_client, PROBE_CLIENT);
1517 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1518 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1519 i++;
1520 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1521 goto nla_put_failure;
1522 }
1523 CMD(start_p2p_device, START_P2P_DEVICE);
1524 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1525#ifdef CONFIG_NL80211_TESTMODE
1526 CMD(testmode_cmd, TESTMODE);
1527#endif
86e8cf98 1528 if (state->split) {
5de17984
AS		 1529 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1530 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1531 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1532 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1533 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1534 if (rdev->wiphy.features &
1535 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1536 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1537 }
02df00eb 1538 /* add into the if now */
3713b4e3 1539#undef CMD
ff1b6e69 1540
1b8ec87a 1541 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1542 i++;
1543 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1544 goto nla_put_failure;
ff1b6e69
JB		 1545 }
1546
1b8ec87a 1547 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1548 i++;
1549 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1550 goto nla_put_failure;
1551 }
1552
1553 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557 case 5:
1b8ec87a
ZG		 1558 if (rdev->ops->remain_on_channel &&
1559 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1560 nla_put_u32(msg,
1561 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1562 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1563 goto nla_put_failure;
1564
1b8ec87a 1565 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1566 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1567 goto nla_put_failure;
1568
1569 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1570 goto nla_put_failure;
86e8cf98
JB		 1571 state->split_start++;
1572 if (state->split)
3713b4e3
JB		 1573 break;
1574 case 6:
1575#ifdef CONFIG_PM
1b8ec87a 1576 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1577 goto nla_put_failure;
86e8cf98
JB		 1578 state->split_start++;
1579 if (state->split)
3713b4e3
JB		 1580 break;
1581#else
86e8cf98 1582 state->split_start++;
dfb89c56 1583#endif
3713b4e3
JB		 1584 case 7:
1585 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1586 rdev->wiphy.software_iftypes))
3713b4e3 1587 goto nla_put_failure;
ff1b6e69 1588
1b8ec87a 1589 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1590 state->split))
3713b4e3 1591 goto nla_put_failure;
7527a782 1592
86e8cf98
JB		 1593 state->split_start++;
1594 if (state->split)
3713b4e3
JB		 1595 break;
1596 case 8:
1b8ec87a 1597 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1598 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1599 rdev->wiphy.ap_sme_capa))
3713b4e3 1600 goto nla_put_failure;
7527a782 1601
1b8ec87a 1602 features = rdev->wiphy.features;
fe1abafd
JB		 1603 /*
1604 * We can only add the per-channel limit information if the
1605 * dump is split, otherwise it makes it too big. Therefore
1606 * only advertise it in that case.
1607 */
86e8cf98 1608 if (state->split)
fe1abafd
JB		 1609 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1610 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1611 goto nla_put_failure;
562a7480 1612
1b8ec87a 1613 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1614 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1615 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1616 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1617 goto nla_put_failure;
1f074bd8 1618
1b8ec87a
ZG		 1619 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1620 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1621 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1622 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1623 goto nla_put_failure;
7e7c8926 1624
3713b4e3
JB		 1625 /*
1626 * Any information below this point is only available to
1627 * applications that can deal with it being split. This
1628 * helps ensure that newly added capabilities don't break
1629 * older tools by overrunning their buffers.
1630 *
1631 * We still increment split_start so that in the split
1632 * case we'll continue with more data in the next round,
1633 * but break unconditionally so unsplit data stops here.
1634 */
86e8cf98 1635 state->split_start++;
3713b4e3
JB		 1636 break;
1637 case 9:
1b8ec87a 1638 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1639 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1640 rdev->wiphy.extended_capabilities_len,
1641 rdev->wiphy.extended_capabilities) ||
fe1abafd 1642 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1643 rdev->wiphy.extended_capabilities_len,
1644 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1645 goto nla_put_failure;
a50df0c4 1646
1b8ec87a 1647 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1648 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1649 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1650 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1651 goto nla_put_failure;
1652
be29b99a
AK		 1653 state->split_start++;
1654 break;
1655 case 10:
1b8ec87a 1656 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1657 goto nla_put_failure;
1658
1b8ec87a 1659 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1660 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1661 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1662 goto nla_put_failure;
b43504cf 1663
1b8ec87a 1664 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1665 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1666 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1667 goto nla_put_failure;
1668
ad7e718c
JB		 1669 state->split_start++;
1670 break;
1671 case 11:
1b8ec87a 1672 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1673 const struct nl80211_vendor_cmd_info *info;
1674 struct nlattr *nested;
1675
1676 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1677 if (!nested)
1678 goto nla_put_failure;
1679
1b8ec87a
ZG		 1680 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1681 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1682 if (nla_put(msg, i + 1, sizeof(*info), info))
1683 goto nla_put_failure;
1684 }
1685 nla_nest_end(msg, nested);
1686 }
1687
1b8ec87a 1688 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1689 const struct nl80211_vendor_cmd_info *info;
1690 struct nlattr *nested;
ad7e718c 1691
567ffc35
JB		 1692 nested = nla_nest_start(msg,
1693 NL80211_ATTR_VENDOR_EVENTS);
1694 if (!nested)
ad7e718c 1695 goto nla_put_failure;
567ffc35 1696
1b8ec87a
ZG		 1697 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1698 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1699 if (nla_put(msg, i + 1, sizeof(*info), info))
1700 goto nla_put_failure;
1701 }
1702 nla_nest_end(msg, nested);
1703 }
9a774c78
AO		 1704 state->split_start++;
1705 break;
1706 case 12:
1707 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1708 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1709 rdev->wiphy.max_num_csa_counters))
1710 goto nla_put_failure;
01e0daa4 1711
1bdd716c
AN		 1712 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1713 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1714 goto nla_put_failure;
1715
d75bb06b
GKS		 1716 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1717 sizeof(rdev->wiphy.ext_features),
1718 rdev->wiphy.ext_features))
1719 goto nla_put_failure;
1720
3713b4e3 1721 /* done */
86e8cf98 1722 state->split_start = 0;
3713b4e3
JB		 1723 break;
1724 }
3bb20556 1725 finish:
55682965
JB		 1726 return genlmsg_end(msg, hdr);
1727
1728 nla_put_failure:
bc3ed28c
TG		 1729 genlmsg_cancel(msg, hdr);
1730 return -EMSGSIZE;
55682965
JB		 1731}
1732
86e8cf98
JB		 1733static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1734 struct netlink_callback *cb,
1735 struct nl80211_dump_wiphy_state *state)
1736{
1737 struct nlattr **tb = nl80211_fam.attrbuf;
1738 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1739 tb, nl80211_fam.maxattr, nl80211_policy);
1740 /* ignore parse errors for backward compatibility */
1741 if (ret)
1742 return 0;
1743
1744 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1745 if (tb[NL80211_ATTR_WIPHY])
1746 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1747 if (tb[NL80211_ATTR_WDEV])
1748 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1749 if (tb[NL80211_ATTR_IFINDEX]) {
1750 struct net_device *netdev;
1751 struct cfg80211_registered_device *rdev;
1752 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1753
7f2b8562 1754 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1755 if (!netdev)
1756 return -ENODEV;
1757 if (netdev->ieee80211_ptr) {
f26cbf40 1758 rdev = wiphy_to_rdev(
86e8cf98
JB		 1759 netdev->ieee80211_ptr->wiphy);
1760 state->filter_wiphy = rdev->wiphy_idx;
1761 }
86e8cf98
JB		 1762 }
1763
1764 return 0;
1765}
1766
55682965
JB		 1767static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1768{
645e77de 1769 int idx = 0, ret;
86e8cf98 1770 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1771 struct cfg80211_registered_device *rdev;
3a5a423b 1772
5fe231e8 1773 rtnl_lock();
86e8cf98
JB		 1774 if (!state) {
1775 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1776 if (!state) {
1777 rtnl_unlock();
86e8cf98 1778 return -ENOMEM;
3713b4e3 1779 }
86e8cf98
JB		 1780 state->filter_wiphy = -1;
1781 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1782 if (ret) {
1783 kfree(state);
1784 rtnl_unlock();
1785 return ret;
3713b4e3 1786 }
86e8cf98 1787 cb->args[0] = (long)state;
3713b4e3
JB		 1788 }
1789
1b8ec87a
ZG		 1790 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1791 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1792 continue;
86e8cf98 1793 if (++idx <= state->start)
55682965 1794 continue;
86e8cf98 1795 if (state->filter_wiphy != -1 &&
1b8ec87a 1796 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1797 continue;
1798 /* attempt to fit multiple wiphy data chunks into the skb */
1799 do {
3bb20556
JB		 1800 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1801 skb,
3713b4e3
JB		 1802 NETLINK_CB(cb->skb).portid,
1803 cb->nlh->nlmsg_seq,
86e8cf98 1804 NLM_F_MULTI, state);
3713b4e3
JB		 1805 if (ret < 0) {
1806 /*
1807 * If sending the wiphy data didn't fit (ENOBUFS
1808 * or EMSGSIZE returned), this SKB is still
1809 * empty (so it's not too big because another
1810 * wiphy dataset is already in the skb) and
1811 * we've not tried to adjust the dump allocation
1812 * yet ... then adjust the alloc size to be
1813 * bigger, and return 1 but with the empty skb.
1814 * This results in an empty message being RX'ed
1815 * in userspace, but that is ignored.
1816 *
1817 * We can then retry with the larger buffer.
1818 */
1819 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1820 !skb->len && !state->split &&
3713b4e3
JB		 1821 cb->min_dump_alloc < 4096) {
1822 cb->min_dump_alloc = 4096;
f12cb289 1823 state->split_start = 0;
d98cae64 1824 rtnl_unlock();
3713b4e3
JB		 1825 return 1;
1826 }
1827 idx--;
1828 break;
645e77de 1829 }
86e8cf98 1830 } while (state->split_start > 0);
3713b4e3 1831 break;
55682965 1832 }
5fe231e8 1833 rtnl_unlock();
55682965 1834
86e8cf98 1835 state->start = idx;
55682965
JB		 1836
1837 return skb->len;
1838}
1839
86e8cf98
JB		 1840static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1841{
1842 kfree((void *)cb->args[0]);
1843 return 0;
1844}
1845
55682965
JB		 1846static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1847{
1848 struct sk_buff *msg;
1b8ec87a 1849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1850 struct nl80211_dump_wiphy_state state = {};
55682965 1851
645e77de 1852 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1853 if (!msg)
4c476991 1854 return -ENOMEM;
55682965 1855
3bb20556
JB		 1856 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1857 info->snd_portid, info->snd_seq, 0,
86e8cf98 1858 &state) < 0) {
4c476991
JB		 1859 nlmsg_free(msg);
1860 return -ENOBUFS;
1861 }
55682965 1862
134e6375 1863 return genlmsg_reply(msg, info);
55682965
JB		 1864}
1865
31888487
JM		 1866static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1867 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1868 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1869 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1870 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1871 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1872};
1873
1874static int parse_txq_params(struct nlattr *tb[],
1875 struct ieee80211_txq_params *txq_params)
1876{
a3304b0a 1877 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1878 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1879 !tb[NL80211_TXQ_ATTR_AIFS])
1880 return -EINVAL;
1881
a3304b0a 1882 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1883 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1884 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1885 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1886 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1887
a3304b0a
JB		 1888 if (txq_params->ac >= NL80211_NUM_ACS)
1889 return -EINVAL;
1890
31888487
JM		 1891 return 0;
1892}
1893
f444de05
JB		 1894static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1895{
1896 /*
cc1d2806
JB		 1897 * You can only set the channel explicitly for WDS interfaces,
1898 * all others have their channel managed via their respective
1899 * "establish a connection" command (connect, join, ...)
1900 *
1901 * For AP/GO and mesh mode, the channel can be set with the
1902 * channel userspace API, but is only stored and passed to the
1903 * low-level driver when the AP starts or the mesh is joined.
1904 * This is for backward compatibility, userspace can also give
1905 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1906 *
1907 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1908 * whatever else is going on, so they have their own special
1909 * operation to set the monitor channel if possible.
f444de05
JB		 1910 */
1911 return !wdev ||
1912 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1913 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1914 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1915 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1916}
1917
683b6d3b
JB		 1918static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1919 struct genl_info *info,
1920 struct cfg80211_chan_def *chandef)
1921{
dbeca2ea 1922 u32 control_freq;
683b6d3b
JB		 1923
1924 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1925 return -EINVAL;
1926
1927 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1928
1929 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1930 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1931 chandef->center_freq1 = control_freq;
1932 chandef->center_freq2 = 0;
683b6d3b
JB		 1933
1934 /* Primary channel not allowed */
1935 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1936 return -EINVAL;
1937
3d9d1d66
JB		 1938 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1939 enum nl80211_channel_type chantype;
1940
1941 chantype = nla_get_u32(
1942 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1943
1944 switch (chantype) {
1945 case NL80211_CHAN_NO_HT:
1946 case NL80211_CHAN_HT20:
1947 case NL80211_CHAN_HT40PLUS:
1948 case NL80211_CHAN_HT40MINUS:
1949 cfg80211_chandef_create(chandef, chandef->chan,
1950 chantype);
1951 break;
1952 default:
1953 return -EINVAL;
1954 }
1955 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1956 chandef->width =
1957 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1958 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1959 chandef->center_freq1 =
1960 nla_get_u32(
1961 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1962 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1963 chandef->center_freq2 =
1964 nla_get_u32(
1965 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1966 }
1967
9f5e8f6e 1968 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1969 return -EINVAL;
1970
9f5e8f6e
JB		 1971 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1972 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1973 return -EINVAL;
1974
2f301ab2
SW		 1975 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1976 chandef->width == NL80211_CHAN_WIDTH_10) &&
1977 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1978 return -EINVAL;
1979
683b6d3b
JB		 1980 return 0;
1981}
1982
f444de05 1983static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1984 struct net_device *dev,
f444de05
JB		 1985 struct genl_info *info)
1986{
683b6d3b 1987 struct cfg80211_chan_def chandef;
f444de05 1988 int result;
e8c9bd5b 1989 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1990 struct wireless_dev *wdev = NULL;
e8c9bd5b 1991
e16821bc
JM		 1992 if (dev)
1993 wdev = dev->ieee80211_ptr;
f444de05
JB		 1994 if (!nl80211_can_set_dev_channel(wdev))
1995 return -EOPNOTSUPP;
e16821bc
JM		 1996 if (wdev)
1997 iftype = wdev->iftype;
f444de05 1998
683b6d3b
JB		 1999 result = nl80211_parse_chandef(rdev, info, &chandef);
2000 if (result)
2001 return result;
f444de05 2002
e8c9bd5b 2003 switch (iftype) {
aa430da4
JB		 2004 case NL80211_IFTYPE_AP:
2005 case NL80211_IFTYPE_P2P_GO:
174e0cd2 2006 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2007 result = -EINVAL;
2008 break;
2009 }
e16821bc
JM		 2010 if (wdev->beacon_interval) {
2011 if (!dev || !rdev->ops->set_ap_chanwidth ||
2012 !(rdev->wiphy.features &
2013 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2014 result = -EBUSY;
2015 break;
2016 }
2017
2018 /* Only allow dynamic channel width changes */
2019 if (chandef.chan != wdev->preset_chandef.chan) {
2020 result = -EBUSY;
2021 break;
2022 }
2023 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2024 if (result)
2025 break;
2026 }
683b6d3b 2027 wdev->preset_chandef = chandef;
aa430da4
JB		 2028 result = 0;
2029 break;
cc1d2806 2030 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2031 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2032 break;
e8c9bd5b 2033 case NL80211_IFTYPE_MONITOR:
683b6d3b 2034 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2035 break;
aa430da4 2036 default:
e8c9bd5b 2037 result = -EINVAL;
f444de05 2038 }
f444de05
JB		 2039
2040 return result;
2041}
2042
2043static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2044{
4c476991
JB		 2045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2046 struct net_device *netdev = info->user_ptr[1];
f444de05 2047
e16821bc 2048 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2049}
2050
e8347eba
BJ		 2051static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2052{
43b19952
JB		 2053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2054 struct net_device *dev = info->user_ptr[1];
2055 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2056 const u8 *bssid;
e8347eba
BJ		 2057
2058 if (!info->attrs[NL80211_ATTR_MAC])
2059 return -EINVAL;
2060
43b19952
JB		 2061 if (netif_running(dev))
2062 return -EBUSY;
e8347eba 2063
43b19952
JB		 2064 if (!rdev->ops->set_wds_peer)
2065 return -EOPNOTSUPP;
e8347eba 2066
43b19952
JB		 2067 if (wdev->iftype != NL80211_IFTYPE_WDS)
2068 return -EOPNOTSUPP;
e8347eba
BJ		 2069
2070 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2071 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2072}
2073
2074
55682965
JB		 2075static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2076{
2077 struct cfg80211_registered_device *rdev;
f444de05
JB		 2078 struct net_device *netdev = NULL;
2079 struct wireless_dev *wdev;
a1e567c8 2080 int result = 0, rem_txq_params = 0;
31888487 2081 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2082 u32 changed;
2083 u8 retry_short = 0, retry_long = 0;
2084 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2085 u8 coverage_class = 0;
55682965 2086
5fe231e8
JB		 2087 ASSERT_RTNL();
2088
f444de05
JB		 2089 /*
2090 * Try to find the wiphy and netdev. Normally this
2091 * function shouldn't need the netdev, but this is
2092 * done for backward compatibility -- previously
2093 * setting the channel was done per wiphy, but now
2094 * it is per netdev. Previous userland like hostapd
2095 * also passed a netdev to set_wiphy, so that it is
2096 * possible to let that go to the right netdev!
2097 */
4bbf4d56 2098
f444de05
JB		 2099 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2100 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2101
7f2b8562 2102 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2103 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2104 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2105 else
f444de05 2106 netdev = NULL;
4bbf4d56
JB		 2107 }
2108
f444de05 2109 if (!netdev) {
878d9ec7
JB		 2110 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2111 info->attrs);
5fe231e8 2112 if (IS_ERR(rdev))
4c476991 2113 return PTR_ERR(rdev);
f444de05
JB		 2114 wdev = NULL;
2115 netdev = NULL;
2116 result = 0;
71fe96bf 2117 } else
f444de05 2118 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2119
2120 /*
2121 * end workaround code, by now the rdev is available
2122 * and locked, and wdev may or may not be NULL.
2123 */
4bbf4d56
JB		 2124
2125 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2126 result = cfg80211_dev_rename(
2127 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2128
4bbf4d56 2129 if (result)
7f2b8562 2130 return result;
31888487
JM		 2131
2132 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2133 struct ieee80211_txq_params txq_params;
2134 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2135
7f2b8562
YX		 2136 if (!rdev->ops->set_txq_params)
2137 return -EOPNOTSUPP;
31888487 2138
7f2b8562
YX		 2139 if (!netdev)
2140 return -EINVAL;
f70f01c2 2141
133a3ff2 2142 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2143 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2144 return -EINVAL;
133a3ff2 2145
7f2b8562
YX		 2146 if (!netif_running(netdev))
2147 return -ENETDOWN;
2b5f8b0b 2148
31888487
JM		 2149 nla_for_each_nested(nl_txq_params,
2150 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2151 rem_txq_params) {
ae811e21
JB		 2152 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2153 nla_data(nl_txq_params),
2154 nla_len(nl_txq_params),
2155 txq_params_policy);
2156 if (result)
2157 return result;
31888487
JM		 2158 result = parse_txq_params(tb, &txq_params);
2159 if (result)
7f2b8562 2160 return result;
31888487 2161
e35e4d28
HG		 2162 result = rdev_set_txq_params(rdev, netdev,
2163 &txq_params);
31888487 2164 if (result)
7f2b8562 2165 return result;
31888487
JM		 2166 }
2167 }
55682965 2168
72bdcf34 2169 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2170 result = __nl80211_set_channel(
2171 rdev,
2172 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2173 info);
72bdcf34 2174 if (result)
7f2b8562 2175 return result;
72bdcf34
JM		 2176 }
2177
98d2ff8b 2178 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2179 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2180 enum nl80211_tx_power_setting type;
2181 int idx, mbm = 0;
2182
c8442118
JB		 2183 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2184 txp_wdev = NULL;
2185
7f2b8562
YX		 2186 if (!rdev->ops->set_tx_power)
2187 return -EOPNOTSUPP;
98d2ff8b
JO		 2188
2189 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2190 type = nla_get_u32(info->attrs[idx]);
2191
2192 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2193 (type != NL80211_TX_POWER_AUTOMATIC))
2194 return -EINVAL;
98d2ff8b
JO		 2195
2196 if (type != NL80211_TX_POWER_AUTOMATIC) {
2197 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2198 mbm = nla_get_u32(info->attrs[idx]);
2199 }
2200
c8442118 2201 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2202 if (result)
7f2b8562 2203 return result;
98d2ff8b
JO		 2204 }
2205
afe0cbf8
BR		 2206 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2207 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2208 u32 tx_ant, rx_ant;
7f531e03
BR		 2209 if ((!rdev->wiphy.available_antennas_tx &&
2210 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2211 !rdev->ops->set_antenna)
2212 return -EOPNOTSUPP;
afe0cbf8
BR		 2213
2214 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2215 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2216
a7ffac95 2217 /* reject antenna configurations which don't match the
7f531e03
BR		 2218 * available antenna masks, except for the "all" mask */
2219 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2220 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2221 return -EINVAL;
a7ffac95 2222
7f531e03
BR		 2223 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2224 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2225
e35e4d28 2226 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2227 if (result)
7f2b8562 2228 return result;
afe0cbf8
BR		 2229 }
2230
b9a5f8ca
JM		 2231 changed = 0;
2232
2233 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2234 retry_short = nla_get_u8(
2235 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2236 if (retry_short == 0)
2237 return -EINVAL;
2238
b9a5f8ca
JM		 2239 changed |= WIPHY_PARAM_RETRY_SHORT;
2240 }
2241
2242 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2243 retry_long = nla_get_u8(
2244 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2245 if (retry_long == 0)
2246 return -EINVAL;
2247
b9a5f8ca
JM		 2248 changed |= WIPHY_PARAM_RETRY_LONG;
2249 }
2250
2251 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2252 frag_threshold = nla_get_u32(
2253 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2254 if (frag_threshold < 256)
2255 return -EINVAL;
2256
b9a5f8ca
JM		 2257 if (frag_threshold != (u32) -1) {
2258 /*
2259 * Fragments (apart from the last one) are required to
2260 * have even length. Make the fragmentation code
2261 * simpler by stripping LSB should someone try to use
2262 * odd threshold value.
2263 */
2264 frag_threshold &= ~0x1;
2265 }
2266 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2267 }
2268
2269 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2270 rts_threshold = nla_get_u32(
2271 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2272 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2273 }
2274
81077e82 2275 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2276 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2277 return -EINVAL;
2278
81077e82
LT		 2279 coverage_class = nla_get_u8(
2280 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2281 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2282 }
2283
3057dbfd
LB		 2284 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2285 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2286 return -EOPNOTSUPP;
2287
2288 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2289 }
2290
b9a5f8ca
JM		 2291 if (changed) {
2292 u8 old_retry_short, old_retry_long;
2293 u32 old_frag_threshold, old_rts_threshold;
81077e82 2294 u8 old_coverage_class;
b9a5f8ca 2295
7f2b8562
YX		 2296 if (!rdev->ops->set_wiphy_params)
2297 return -EOPNOTSUPP;
b9a5f8ca
JM		 2298
2299 old_retry_short = rdev->wiphy.retry_short;
2300 old_retry_long = rdev->wiphy.retry_long;
2301 old_frag_threshold = rdev->wiphy.frag_threshold;
2302 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2303 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2304
2305 if (changed & WIPHY_PARAM_RETRY_SHORT)
2306 rdev->wiphy.retry_short = retry_short;
2307 if (changed & WIPHY_PARAM_RETRY_LONG)
2308 rdev->wiphy.retry_long = retry_long;
2309 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2310 rdev->wiphy.frag_threshold = frag_threshold;
2311 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2312 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2313 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2314 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2315
e35e4d28 2316 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2317 if (result) {
2318 rdev->wiphy.retry_short = old_retry_short;
2319 rdev->wiphy.retry_long = old_retry_long;
2320 rdev->wiphy.frag_threshold = old_frag_threshold;
2321 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2322 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2323 }
2324 }
7f2b8562 2325 return 0;
55682965
JB		 2326}
2327
71bbc994
JB		 2328static inline u64 wdev_id(struct wireless_dev *wdev)
2329{
2330 return (u64)wdev->identifier |
f26cbf40 2331 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2332}
55682965 2333
683b6d3b 2334static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2335 const struct cfg80211_chan_def *chandef)
683b6d3b 2336{
601555cd
JB		 2337 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2338 return -EINVAL;
3d9d1d66 2339
683b6d3b
JB		 2340 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2341 chandef->chan->center_freq))
2342 return -ENOBUFS;
3d9d1d66
JB		 2343 switch (chandef->width) {
2344 case NL80211_CHAN_WIDTH_20_NOHT:
2345 case NL80211_CHAN_WIDTH_20:
2346 case NL80211_CHAN_WIDTH_40:
2347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2348 cfg80211_get_chandef_type(chandef)))
2349 return -ENOBUFS;
2350 break;
2351 default:
2352 break;
2353 }
2354 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2355 return -ENOBUFS;
2356 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2357 return -ENOBUFS;
2358 if (chandef->center_freq2 &&
2359 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2360 return -ENOBUFS;
2361 return 0;
2362}
2363
15e47304 2364static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2365 struct cfg80211_registered_device *rdev,
8f894be2 2366 struct wireless_dev *wdev, bool removal)
55682965 2367{
72fb2abc 2368 struct net_device *dev = wdev->netdev;
8f894be2 2369 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2370 void *hdr;
2371
8f894be2
TB		 2372 if (removal)
2373 cmd = NL80211_CMD_DEL_INTERFACE;
2374
2375 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2376 if (!hdr)
2377 return -1;
2378
72fb2abc
JB		 2379 if (dev &&
2380 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2381 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2382 goto nla_put_failure;
2383
2384 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2385 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2386 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2387 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2388 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2389 rdev->devlist_generation ^
2390 (cfg80211_rdev_list_generation << 2)))
2391 goto nla_put_failure;
f5ea9120 2392
5b7ccaf3 2393 if (rdev->ops->get_channel) {
683b6d3b
JB		 2394 int ret;
2395 struct cfg80211_chan_def chandef;
2396
2397 ret = rdev_get_channel(rdev, wdev, &chandef);
2398 if (ret == 0) {
2399 if (nl80211_send_chandef(msg, &chandef))
2400 goto nla_put_failure;
2401 }
d91df0e3
PF		 2402 }
2403
b84e7a05
AQ		 2404 if (wdev->ssid_len) {
2405 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2406 goto nla_put_failure;
2407 }
2408
55682965
JB		 2409 return genlmsg_end(msg, hdr);
2410
2411 nla_put_failure:
bc3ed28c
TG		 2412 genlmsg_cancel(msg, hdr);
2413 return -EMSGSIZE;
55682965
JB		 2414}
2415
2416static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2417{
2418 int wp_idx = 0;
2419 int if_idx = 0;
2420 int wp_start = cb->args[0];
2421 int if_start = cb->args[1];
f5ea9120 2422 struct cfg80211_registered_device *rdev;
55682965
JB		 2423 struct wireless_dev *wdev;
2424
5fe231e8 2425 rtnl_lock();
f5ea9120
JB		 2426 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2427 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2428 continue;
bba95fef
JB		 2429 if (wp_idx < wp_start) {
2430 wp_idx++;
55682965 2431 continue;
bba95fef 2432 }
55682965
JB		 2433 if_idx = 0;
2434
89a54e48 2435 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2436 if (if_idx < if_start) {
2437 if_idx++;
55682965 2438 continue;
bba95fef 2439 }
15e47304 2440 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2441 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2442 rdev, wdev, false) < 0) {
bba95fef
JB		 2443 goto out;
2444 }
2445 if_idx++;
55682965 2446 }
bba95fef
JB		 2447
2448 wp_idx++;
55682965 2449 }
bba95fef 2450 out:
5fe231e8 2451 rtnl_unlock();
55682965
JB		 2452
2453 cb->args[0] = wp_idx;
2454 cb->args[1] = if_idx;
2455
2456 return skb->len;
2457}
2458
2459static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2460{
2461 struct sk_buff *msg;
1b8ec87a 2462 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2463 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2464
fd2120ca 2465 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2466 if (!msg)
4c476991 2467 return -ENOMEM;
55682965 2468
15e47304 2469 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2470 rdev, wdev, false) < 0) {
4c476991
JB		 2471 nlmsg_free(msg);
2472 return -ENOBUFS;
2473 }
55682965 2474
134e6375 2475 return genlmsg_reply(msg, info);
55682965
JB		 2476}
2477
66f7ac50
MW		 2478static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2479 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2480 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2481 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2482 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2483 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2484 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2485};
2486
2487static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2488{
2489 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2490 int flag;
2491
2492 *mntrflags = 0;
2493
2494 if (!nla)
2495 return -EINVAL;
2496
2497 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2498 nla, mntr_flags_policy))
2499 return -EINVAL;
2500
2501 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2502 if (flags[flag])
2503 *mntrflags |= (1<<flag);
2504
2505 return 0;
2506}
2507
9bc383de 2508static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2509 struct net_device *netdev, u8 use_4addr,
2510 enum nl80211_iftype iftype)
9bc383de 2511{
ad4bb6f8 2512 if (!use_4addr) {
f350a0a8 2513 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2514 return -EBUSY;
9bc383de 2515 return 0;
ad4bb6f8 2516 }
9bc383de
JB		 2517
2518 switch (iftype) {
2519 case NL80211_IFTYPE_AP_VLAN:
2520 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2521 return 0;
2522 break;
2523 case NL80211_IFTYPE_STATION:
2524 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2525 return 0;
2526 break;
2527 default:
2528 break;
2529 }
2530
2531 return -EOPNOTSUPP;
2532}
2533
55682965
JB		 2534static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2535{
4c476991 2536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2537 struct vif_params params;
e36d56b6 2538 int err;
04a773ad 2539 enum nl80211_iftype otype, ntype;
4c476991 2540 struct net_device *dev = info->user_ptr[1];
92ffe055 2541 u32 _flags, *flags = NULL;
ac7f9cfa 2542 bool change = false;
55682965 2543
2ec600d6
LCC		 2544 memset(&params, 0, sizeof(params));
2545
04a773ad 2546 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2547
723b038d 2548 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2549 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2550 if (otype != ntype)
ac7f9cfa 2551 change = true;
4c476991
JB		 2552 if (ntype > NL80211_IFTYPE_MAX)
2553 return -EINVAL;
723b038d
JB		 2554 }
2555
92ffe055 2556 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2557 struct wireless_dev *wdev = dev->ieee80211_ptr;
2558
4c476991
JB		 2559 if (ntype != NL80211_IFTYPE_MESH_POINT)
2560 return -EINVAL;
29cbe68c
JB		 2561 if (netif_running(dev))
2562 return -EBUSY;
2563
2564 wdev_lock(wdev);
2565 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2566 IEEE80211_MAX_MESH_ID_LEN);
2567 wdev->mesh_id_up_len =
2568 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2569 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2570 wdev->mesh_id_up_len);
2571 wdev_unlock(wdev);
2ec600d6
LCC		 2572 }
2573
8b787643
FF		 2574 if (info->attrs[NL80211_ATTR_4ADDR]) {
2575 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2576 change = true;
ad4bb6f8 2577 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2578 if (err)
4c476991 2579 return err;
8b787643
FF		 2580 } else {
2581 params.use_4addr = -1;
2582 }
2583
92ffe055 2584 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2585 if (ntype != NL80211_IFTYPE_MONITOR)
2586 return -EINVAL;
92ffe055
JB		 2587 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2588 &_flags);
ac7f9cfa 2589 if (err)
4c476991 2590 return err;
ac7f9cfa
JB		 2591
2592 flags = &_flags;
2593 change = true;
92ffe055 2594 }
3b85875a 2595
18003297 2596 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2597 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2598 return -EOPNOTSUPP;
2599
ac7f9cfa 2600 if (change)
3d54d255 2601 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2602 else
2603 err = 0;
60719ffd 2604
9bc383de
JB		 2605 if (!err && params.use_4addr != -1)
2606 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2607
55682965
JB		 2608 return err;
2609}
2610
2611static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2612{
4c476991 2613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2614 struct vif_params params;
84efbb84 2615 struct wireless_dev *wdev;
8f894be2 2616 struct sk_buff *msg, *event;
55682965
JB		 2617 int err;
2618 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2619 u32 flags;
55682965 2620
78f22b6a
JB		 2621 /* to avoid failing a new interface creation due to pending removal */
2622 cfg80211_destroy_ifaces(rdev);
2623
2ec600d6
LCC		 2624 memset(&params, 0, sizeof(params));
2625
55682965
JB		 2626 if (!info->attrs[NL80211_ATTR_IFNAME])
2627 return -EINVAL;
2628
2629 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2630 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2631 if (type > NL80211_IFTYPE_MAX)
2632 return -EINVAL;
2633 }
2634
79c97e97 2635 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2636 !(rdev->wiphy.interface_modes & (1 << type)))
2637 return -EOPNOTSUPP;
55682965 2638
e8f479b1
BG		 2639 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2640 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2641 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2642 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2643 ETH_ALEN);
2644 if (!is_valid_ether_addr(params.macaddr))
2645 return -EADDRNOTAVAIL;
2646 }
2647
9bc383de 2648 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2649 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2650 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2651 if (err)
4c476991 2652 return err;
9bc383de 2653 }
8b787643 2654
1c90f9d4
JB		 2655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2656 if (!msg)
2657 return -ENOMEM;
2658
66f7ac50
MW		 2659 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2660 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2661 &flags);
e057d3c3 2662
18003297 2663 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2664 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2665 return -EOPNOTSUPP;
2666
e35e4d28
HG		 2667 wdev = rdev_add_virtual_intf(rdev,
2668 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2669 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2670 if (WARN_ON(!wdev)) {
2671 nlmsg_free(msg);
2672 return -EPROTO;
2673 } else if (IS_ERR(wdev)) {
1c90f9d4 2674 nlmsg_free(msg);
84efbb84 2675 return PTR_ERR(wdev);
1c90f9d4 2676 }
2ec600d6 2677
18e5ca65 2678 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2679 wdev->owner_nlportid = info->snd_portid;
2680
98104fde
JB		 2681 switch (type) {
2682 case NL80211_IFTYPE_MESH_POINT:
2683 if (!info->attrs[NL80211_ATTR_MESH_ID])
2684 break;
29cbe68c
JB		 2685 wdev_lock(wdev);
2686 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2687 IEEE80211_MAX_MESH_ID_LEN);
2688 wdev->mesh_id_up_len =
2689 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2690 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2691 wdev->mesh_id_up_len);
2692 wdev_unlock(wdev);
98104fde
JB		 2693 break;
2694 case NL80211_IFTYPE_P2P_DEVICE:
2695 /*
2696 * P2P Device doesn't have a netdev, so doesn't go
2697 * through the netdev notifier and must be added here
2698 */
2699 mutex_init(&wdev->mtx);
2700 INIT_LIST_HEAD(&wdev->event_list);
2701 spin_lock_init(&wdev->event_lock);
2702 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2703 spin_lock_init(&wdev->mgmt_registrations_lock);
2704
98104fde
JB		 2705 wdev->identifier = ++rdev->wdev_id;
2706 list_add_rcu(&wdev->list, &rdev->wdev_list);
2707 rdev->devlist_generation++;
98104fde
JB		 2708 break;
2709 default:
2710 break;
29cbe68c
JB		 2711 }
2712
15e47304 2713 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2714 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2715 nlmsg_free(msg);
2716 return -ENOBUFS;
2717 }
2718
8f894be2
TB		 2719 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2720 if (event) {
2721 if (nl80211_send_iface(event, 0, 0, 0,
2722 rdev, wdev, false) < 0) {
2723 nlmsg_free(event);
2724 goto out;
2725 }
2726
2727 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2728 event, 0, NL80211_MCGRP_CONFIG,
2729 GFP_KERNEL);
2730 }
2731
2732out:
1c90f9d4 2733 return genlmsg_reply(msg, info);
55682965
JB		 2734}
2735
2736static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2737{
4c476991 2738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2739 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2740 struct sk_buff *msg;
2741 int status;
55682965 2742
4c476991
JB		 2743 if (!rdev->ops->del_virtual_intf)
2744 return -EOPNOTSUPP;
55682965 2745
8f894be2
TB		 2746 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2747 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2748 nlmsg_free(msg);
2749 msg = NULL;
2750 }
2751
84efbb84
JB		 2752 /*
2753 * If we remove a wireless device without a netdev then clear
2754 * user_ptr[1] so that nl80211_post_doit won't dereference it
2755 * to check if it needs to do dev_put(). Otherwise it crashes
2756 * since the wdev has been freed, unlike with a netdev where
2757 * we need the dev_put() for the netdev to really be freed.
2758 */
2759 if (!wdev->netdev)
2760 info->user_ptr[1] = NULL;
2761
8f894be2
TB		 2762 status = rdev_del_virtual_intf(rdev, wdev);
2763 if (status >= 0 && msg)
2764 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2765 msg, 0, NL80211_MCGRP_CONFIG,
2766 GFP_KERNEL);
2767 else
2768 nlmsg_free(msg);
2769
2770 return status;
55682965
JB		 2771}
2772
1d9d9213
SW		 2773static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2774{
2775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2776 struct net_device *dev = info->user_ptr[1];
2777 u16 noack_map;
2778
2779 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2780 return -EINVAL;
2781
2782 if (!rdev->ops->set_noack_map)
2783 return -EOPNOTSUPP;
2784
2785 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2786
e35e4d28 2787 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2788}
2789
41ade00f
JB		 2790struct get_key_cookie {
2791 struct sk_buff *msg;
2792 int error;
b9454e83 2793 int idx;
41ade00f
JB		 2794};
2795
2796static void get_key_callback(void *c, struct key_params *params)
2797{
b9454e83 2798 struct nlattr *key;
41ade00f
JB		 2799 struct get_key_cookie *cookie = c;
2800
9360ffd1
DM		 2801 if ((params->key &&
2802 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2803 params->key_len, params->key)) ||
2804 (params->seq &&
2805 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2806 params->seq_len, params->seq)) ||
2807 (params->cipher &&
2808 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2809 params->cipher)))
2810 goto nla_put_failure;
41ade00f 2811
b9454e83
JB		 2812 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2813 if (!key)
2814 goto nla_put_failure;
2815
9360ffd1
DM		 2816 if ((params->key &&
2817 nla_put(cookie->msg, NL80211_KEY_DATA,
2818 params->key_len, params->key)) ||
2819 (params->seq &&
2820 nla_put(cookie->msg, NL80211_KEY_SEQ,
2821 params->seq_len, params->seq)) ||
2822 (params->cipher &&
2823 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2824 params->cipher)))
2825 goto nla_put_failure;
b9454e83 2826
9360ffd1
DM		 2827 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2828 goto nla_put_failure;
b9454e83
JB		 2829
2830 nla_nest_end(cookie->msg, key);
2831
41ade00f
JB		 2832 return;
2833 nla_put_failure:
2834 cookie->error = 1;
2835}
2836
2837static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2838{
4c476991 2839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2840 int err;
4c476991 2841 struct net_device *dev = info->user_ptr[1];
41ade00f 2842 u8 key_idx = 0;
e31b8213
JB		 2843 const u8 *mac_addr = NULL;
2844 bool pairwise;
41ade00f
JB		 2845 struct get_key_cookie cookie = {
2846 .error = 0,
2847 };
2848 void *hdr;
2849 struct sk_buff *msg;
2850
2851 if (info->attrs[NL80211_ATTR_KEY_IDX])
2852 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2853
3cfcf6ac 2854 if (key_idx > 5)
41ade00f
JB		 2855 return -EINVAL;
2856
2857 if (info->attrs[NL80211_ATTR_MAC])
2858 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2859
e31b8213
JB		 2860 pairwise = !!mac_addr;
2861 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2862 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2863 if (kt >= NUM_NL80211_KEYTYPES)
2864 return -EINVAL;
2865 if (kt != NL80211_KEYTYPE_GROUP &&
2866 kt != NL80211_KEYTYPE_PAIRWISE)
2867 return -EINVAL;
2868 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2869 }
2870
4c476991
JB		 2871 if (!rdev->ops->get_key)
2872 return -EOPNOTSUPP;
41ade00f 2873
fd2120ca 2874 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2875 if (!msg)
2876 return -ENOMEM;
41ade00f 2877
15e47304 2878 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2879 NL80211_CMD_NEW_KEY);
cb35fba3 2880 if (!hdr)
9fe271af 2881 goto nla_put_failure;
41ade00f
JB		 2882
2883 cookie.msg = msg;
b9454e83 2884 cookie.idx = key_idx;
41ade00f 2885
9360ffd1
DM		 2886 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2887 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2888 goto nla_put_failure;
2889 if (mac_addr &&
2890 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2891 goto nla_put_failure;
41ade00f 2892
e31b8213
JB		 2893 if (pairwise && mac_addr &&
2894 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2895 return -ENOENT;
2896
e35e4d28
HG		 2897 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2898 get_key_callback);
41ade00f
JB		 2899
2900 if (err)
6c95e2a2 2901 goto free_msg;
41ade00f
JB		 2902
2903 if (cookie.error)
2904 goto nla_put_failure;
2905
2906 genlmsg_end(msg, hdr);
4c476991 2907 return genlmsg_reply(msg, info);
41ade00f
JB		 2908
2909 nla_put_failure:
2910 err = -ENOBUFS;
6c95e2a2 2911 free_msg:
41ade00f 2912 nlmsg_free(msg);
41ade00f
JB		 2913 return err;
2914}
2915
2916static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2917{
4c476991 2918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2919 struct key_parse key;
41ade00f 2920 int err;
4c476991 2921 struct net_device *dev = info->user_ptr[1];
41ade00f 2922
b9454e83
JB		 2923 err = nl80211_parse_key(info, &key);
2924 if (err)
2925 return err;
41ade00f 2926
b9454e83 2927 if (key.idx < 0)
41ade00f
JB		 2928 return -EINVAL;
2929
b9454e83
JB		 2930 /* only support setting default key */
2931 if (!key.def && !key.defmgmt)
41ade00f
JB		 2932 return -EINVAL;
2933
dbd2fd65 2934 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2935
dbd2fd65
JB		 2936 if (key.def) {
2937 if (!rdev->ops->set_default_key) {
2938 err = -EOPNOTSUPP;
2939 goto out;
2940 }
41ade00f 2941
dbd2fd65
JB		 2942 err = nl80211_key_allowed(dev->ieee80211_ptr);
2943 if (err)
2944 goto out;
2945
e35e4d28 2946 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2947 key.def_uni, key.def_multi);
2948
2949 if (err)
2950 goto out;
fffd0934 2951
3d23e349 2952#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2953 dev->ieee80211_ptr->wext.default_key = key.idx;
2954#endif
2955 } else {
2956 if (key.def_uni || !key.def_multi) {
2957 err = -EINVAL;
2958 goto out;
2959 }
2960
2961 if (!rdev->ops->set_default_mgmt_key) {
2962 err = -EOPNOTSUPP;
2963 goto out;
2964 }
2965
2966 err = nl80211_key_allowed(dev->ieee80211_ptr);
2967 if (err)
2968 goto out;
2969
e35e4d28 2970 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2971 if (err)
2972 goto out;
2973
2974#ifdef CONFIG_CFG80211_WEXT
2975 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2976#endif
dbd2fd65
JB		 2977 }
2978
2979 out:
fffd0934 2980 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2981
41ade00f
JB		 2982 return err;
2983}
2984
2985static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2986{
4c476991 2987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2988 int err;
4c476991 2989 struct net_device *dev = info->user_ptr[1];
b9454e83 2990 struct key_parse key;
e31b8213 2991 const u8 *mac_addr = NULL;
41ade00f 2992
b9454e83
JB		 2993 err = nl80211_parse_key(info, &key);
2994 if (err)
2995 return err;
41ade00f 2996
b9454e83 2997 if (!key.p.key)
41ade00f
JB		 2998 return -EINVAL;
2999
41ade00f
JB		 3000 if (info->attrs[NL80211_ATTR_MAC])
3001 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3002
e31b8213
JB		 3003 if (key.type == -1) {
3004 if (mac_addr)
3005 key.type = NL80211_KEYTYPE_PAIRWISE;
3006 else
3007 key.type = NL80211_KEYTYPE_GROUP;
3008 }
3009
3010 /* for now */
3011 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3012 key.type != NL80211_KEYTYPE_GROUP)
3013 return -EINVAL;
3014
4c476991
JB		 3015 if (!rdev->ops->add_key)
3016 return -EOPNOTSUPP;
25e47c18 3017
e31b8213
JB		 3018 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3019 key.type == NL80211_KEYTYPE_PAIRWISE,
3020 mac_addr))
4c476991 3021 return -EINVAL;
41ade00f 3022
fffd0934
JB		 3023 wdev_lock(dev->ieee80211_ptr);
3024 err = nl80211_key_allowed(dev->ieee80211_ptr);
3025 if (!err)
e35e4d28
HG		 3026 err = rdev_add_key(rdev, dev, key.idx,
3027 key.type == NL80211_KEYTYPE_PAIRWISE,
3028 mac_addr, &key.p);
fffd0934 3029 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3030
41ade00f
JB		 3031 return err;
3032}
3033
3034static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3035{
4c476991 3036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3037 int err;
4c476991 3038 struct net_device *dev = info->user_ptr[1];
41ade00f 3039 u8 *mac_addr = NULL;
b9454e83 3040 struct key_parse key;
41ade00f 3041
b9454e83
JB		 3042 err = nl80211_parse_key(info, &key);
3043 if (err)
3044 return err;
41ade00f
JB		 3045
3046 if (info->attrs[NL80211_ATTR_MAC])
3047 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3048
e31b8213
JB		 3049 if (key.type == -1) {
3050 if (mac_addr)
3051 key.type = NL80211_KEYTYPE_PAIRWISE;
3052 else
3053 key.type = NL80211_KEYTYPE_GROUP;
3054 }
3055
3056 /* for now */
3057 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3058 key.type != NL80211_KEYTYPE_GROUP)
3059 return -EINVAL;
3060
4c476991
JB		 3061 if (!rdev->ops->del_key)
3062 return -EOPNOTSUPP;
41ade00f 3063
fffd0934
JB		 3064 wdev_lock(dev->ieee80211_ptr);
3065 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3066
3067 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3068 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3069 err = -ENOENT;
3070
fffd0934 3071 if (!err)
e35e4d28
HG		 3072 err = rdev_del_key(rdev, dev, key.idx,
3073 key.type == NL80211_KEYTYPE_PAIRWISE,
3074 mac_addr);
41ade00f 3075
3d23e349 3076#ifdef CONFIG_CFG80211_WEXT
08645126 3077 if (!err) {
b9454e83 3078 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3079 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3080 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3081 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3082 }
3083#endif
fffd0934 3084 wdev_unlock(dev->ieee80211_ptr);
08645126 3085
41ade00f
JB		 3086 return err;
3087}
3088
77765eaf
VT		 3089/* This function returns an error or the number of nested attributes */
3090static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3091{
3092 struct nlattr *attr;
3093 int n_entries = 0, tmp;
3094
3095 nla_for_each_nested(attr, nl_attr, tmp) {
3096 if (nla_len(attr) != ETH_ALEN)
3097 return -EINVAL;
3098
3099 n_entries++;
3100 }
3101
3102 return n_entries;
3103}
3104
3105/*
3106 * This function parses ACL information and allocates memory for ACL data.
3107 * On successful return, the calling function is responsible to free the
3108 * ACL buffer returned by this function.
3109 */
3110static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3111 struct genl_info *info)
3112{
3113 enum nl80211_acl_policy acl_policy;
3114 struct nlattr *attr;
3115 struct cfg80211_acl_data *acl;
3116 int i = 0, n_entries, tmp;
3117
3118 if (!wiphy->max_acl_mac_addrs)
3119 return ERR_PTR(-EOPNOTSUPP);
3120
3121 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3122 return ERR_PTR(-EINVAL);
3123
3124 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3125 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3126 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3127 return ERR_PTR(-EINVAL);
3128
3129 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3130 return ERR_PTR(-EINVAL);
3131
3132 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3133 if (n_entries < 0)
3134 return ERR_PTR(n_entries);
3135
3136 if (n_entries > wiphy->max_acl_mac_addrs)
3137 return ERR_PTR(-ENOTSUPP);
3138
3139 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3140 GFP_KERNEL);
3141 if (!acl)
3142 return ERR_PTR(-ENOMEM);
3143
3144 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3145 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3146 i++;
3147 }
3148
3149 acl->n_acl_entries = n_entries;
3150 acl->acl_policy = acl_policy;
3151
3152 return acl;
3153}
3154
3155static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3156{
3157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3158 struct net_device *dev = info->user_ptr[1];
3159 struct cfg80211_acl_data *acl;
3160 int err;
3161
3162 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3163 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3164 return -EOPNOTSUPP;
3165
3166 if (!dev->ieee80211_ptr->beacon_interval)
3167 return -EINVAL;
3168
3169 acl = parse_acl_data(&rdev->wiphy, info);
3170 if (IS_ERR(acl))
3171 return PTR_ERR(acl);
3172
3173 err = rdev_set_mac_acl(rdev, dev, acl);
3174
3175 kfree(acl);
3176
3177 return err;
3178}
3179
a1193be8 3180static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3181 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3182{
8860020e 3183 bool haveinfo = false;
ed1b6cc7 3184
a1193be8
SW		 3185 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3186 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3187 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3188 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3189 return -EINVAL;
3190
8860020e 3191 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3192
a1193be8
SW		 3193 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3194 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3195 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3196 if (!bcn->head_len)
3197 return -EINVAL;
3198 haveinfo = true;
ed1b6cc7
JB		 3199 }
3200
a1193be8
SW		 3201 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3202 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3203 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3204 haveinfo = true;
ed1b6cc7
JB		 3205 }
3206
4c476991
JB		 3207 if (!haveinfo)
3208 return -EINVAL;
3b85875a 3209
a1193be8
SW		 3210 if (attrs[NL80211_ATTR_IE]) {
3211 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3212 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3213 }
3214
a1193be8 3215 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3216 bcn->proberesp_ies =
a1193be8 3217 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3218 bcn->proberesp_ies_len =
a1193be8 3219 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3220 }
3221
a1193be8 3222 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3223 bcn->assocresp_ies =
a1193be8 3224 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3225 bcn->assocresp_ies_len =
a1193be8 3226 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3227 }
3228
a1193be8
SW		 3229 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3230 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3231 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3232 }
3233
8860020e
JB		 3234 return 0;
3235}
3236
46c1dd0c
FF		 3237static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3238 struct cfg80211_ap_settings *params)
3239{
3240 struct wireless_dev *wdev;
3241 bool ret = false;
3242
89a54e48 3243 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3244 if (wdev->iftype != NL80211_IFTYPE_AP &&
3245 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3246 continue;
3247
683b6d3b 3248 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3249 continue;
3250
683b6d3b 3251 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3252 ret = true;
3253 break;
3254 }
3255
46c1dd0c
FF		 3256 return ret;
3257}
3258
e39e5b5e
JM		 3259static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3260 enum nl80211_auth_type auth_type,
3261 enum nl80211_commands cmd)
3262{
3263 if (auth_type > NL80211_AUTHTYPE_MAX)
3264 return false;
3265
3266 switch (cmd) {
3267 case NL80211_CMD_AUTHENTICATE:
3268 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3269 auth_type == NL80211_AUTHTYPE_SAE)
3270 return false;
3271 return true;
3272 case NL80211_CMD_CONNECT:
3273 case NL80211_CMD_START_AP:
3274 /* SAE not supported yet */
3275 if (auth_type == NL80211_AUTHTYPE_SAE)
3276 return false;
3277 return true;
3278 default:
3279 return false;
3280 }
3281}
3282
8860020e
JB		 3283static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3284{
3285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3286 struct net_device *dev = info->user_ptr[1];
3287 struct wireless_dev *wdev = dev->ieee80211_ptr;
3288 struct cfg80211_ap_settings params;
3289 int err;
3290
3291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3292 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3293 return -EOPNOTSUPP;
3294
3295 if (!rdev->ops->start_ap)
3296 return -EOPNOTSUPP;
3297
3298 if (wdev->beacon_interval)
3299 return -EALREADY;
3300
3301 memset(&params, 0, sizeof(params));
3302
3303 /* these are required for START_AP */
3304 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3305 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3306 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3307 return -EINVAL;
3308
a1193be8 3309 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3310 if (err)
3311 return err;
3312
3313 params.beacon_interval =
3314 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3315 params.dtim_period =
3316 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3317
3318 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3319 if (err)
3320 return err;
3321
3322 /*
3323 * In theory, some of these attributes should be required here
3324 * but since they were not used when the command was originally
3325 * added, keep them optional for old user space programs to let
3326 * them continue to work with drivers that do not need the
3327 * additional information -- drivers must check!
3328 */
3329 if (info->attrs[NL80211_ATTR_SSID]) {
3330 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3331 params.ssid_len =
3332 nla_len(info->attrs[NL80211_ATTR_SSID]);
3333 if (params.ssid_len == 0 ||
3334 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3335 return -EINVAL;
3336 }
3337
3338 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3339 params.hidden_ssid = nla_get_u32(
3340 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3341 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3342 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3343 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3344 return -EINVAL;
3345 }
3346
3347 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3348
3349 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3350 params.auth_type = nla_get_u32(
3351 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3352 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3353 NL80211_CMD_START_AP))
8860020e
JB		 3354 return -EINVAL;
3355 } else
3356 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3357
3358 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3359 NL80211_MAX_NR_CIPHER_SUITES);
3360 if (err)
3361 return err;
3362
1b658f11
VT		 3363 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3364 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3365 return -EOPNOTSUPP;
3366 params.inactivity_timeout = nla_get_u16(
3367 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3368 }
3369
53cabad7
JB		 3370 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3371 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3372 return -EINVAL;
3373 params.p2p_ctwindow =
3374 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3375 if (params.p2p_ctwindow > 127)
3376 return -EINVAL;
3377 if (params.p2p_ctwindow != 0 &&
3378 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3379 return -EINVAL;
3380 }
3381
3382 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3383 u8 tmp;
3384
3385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3386 return -EINVAL;
3387 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3388 if (tmp > 1)
3389 return -EINVAL;
3390 params.p2p_opp_ps = tmp;
3391 if (params.p2p_opp_ps != 0 &&
3392 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3393 return -EINVAL;
3394 }
3395
aa430da4 3396 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3397 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3398 if (err)
3399 return err;
3400 } else if (wdev->preset_chandef.chan) {
3401 params.chandef = wdev->preset_chandef;
46c1dd0c 3402 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3403 return -EINVAL;
3404
174e0cd2
IP		 3405 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3406 wdev->iftype))
aa430da4
JB		 3407 return -EINVAL;
3408
77765eaf
VT		 3409 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3410 params.acl = parse_acl_data(&rdev->wiphy, info);
3411 if (IS_ERR(params.acl))
3412 return PTR_ERR(params.acl);
3413 }
3414
18998c38
EP		 3415 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3416 params.smps_mode =
3417 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3418 switch (params.smps_mode) {
3419 case NL80211_SMPS_OFF:
3420 break;
3421 case NL80211_SMPS_STATIC:
3422 if (!(rdev->wiphy.features &
3423 NL80211_FEATURE_STATIC_SMPS))
3424 return -EINVAL;
3425 break;
3426 case NL80211_SMPS_DYNAMIC:
3427 if (!(rdev->wiphy.features &
3428 NL80211_FEATURE_DYNAMIC_SMPS))
3429 return -EINVAL;
3430 break;
3431 default:
3432 return -EINVAL;
3433 }
3434 } else {
3435 params.smps_mode = NL80211_SMPS_OFF;
3436 }
3437
c56589ed 3438 wdev_lock(wdev);
e35e4d28 3439 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3440 if (!err) {
683b6d3b 3441 wdev->preset_chandef = params.chandef;
8860020e 3442 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3443 wdev->chandef = params.chandef;
06e191e2
AQ		 3444 wdev->ssid_len = params.ssid_len;
3445 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3446 }
c56589ed 3447 wdev_unlock(wdev);
77765eaf
VT		 3448
3449 kfree(params.acl);
3450
56d1893d 3451 return err;
ed1b6cc7
JB		 3452}
3453
8860020e
JB		 3454static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3455{
3456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3457 struct net_device *dev = info->user_ptr[1];
3458 struct wireless_dev *wdev = dev->ieee80211_ptr;
3459 struct cfg80211_beacon_data params;
3460 int err;
3461
3462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3463 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3464 return -EOPNOTSUPP;
3465
3466 if (!rdev->ops->change_beacon)
3467 return -EOPNOTSUPP;
3468
3469 if (!wdev->beacon_interval)
3470 return -EINVAL;
3471
a1193be8 3472 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3473 if (err)
3474 return err;
3475
c56589ed
SW		 3476 wdev_lock(wdev);
3477 err = rdev_change_beacon(rdev, dev, &params);
3478 wdev_unlock(wdev);
3479
3480 return err;
8860020e
JB		 3481}
3482
3483static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3484{
4c476991
JB		 3485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3486 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3487
7c8d5e03 3488 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3489}
3490
5727ef1b
JB		 3491static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3492 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3493 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3494 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3495 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3496 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3497 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3498};
3499
eccb8e8f 3500static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3501 enum nl80211_iftype iftype,
eccb8e8f 3502 struct station_parameters *params)
5727ef1b
JB		 3503{
3504 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3505 struct nlattr *nla;
5727ef1b
JB		 3506 int flag;
3507
eccb8e8f
JB		 3508 /*
3509 * Try parsing the new attribute first so userspace
3510 * can specify both for older kernels.
3511 */
3512 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3513 if (nla) {
3514 struct nl80211_sta_flag_update *sta_flags;
3515
3516 sta_flags = nla_data(nla);
3517 params->sta_flags_mask = sta_flags->mask;
3518 params->sta_flags_set = sta_flags->set;
77ee7c89 3519 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3520 if ((params->sta_flags_mask |
3521 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3522 return -EINVAL;
3523 return 0;
3524 }
3525
3526 /* if present, parse the old attribute */
5727ef1b 3527
eccb8e8f 3528 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3529 if (!nla)
3530 return 0;
3531
3532 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3533 nla, sta_flags_policy))
3534 return -EINVAL;
3535
bdd3ae3d
JB		 3536 /*
3537 * Only allow certain flags for interface types so that
3538 * other attributes are silently ignored. Remember that
3539 * this is backward compatibility code with old userspace
3540 * and shouldn't be hit in other cases anyway.
3541 */
3542 switch (iftype) {
3543 case NL80211_IFTYPE_AP:
3544 case NL80211_IFTYPE_AP_VLAN:
3545 case NL80211_IFTYPE_P2P_GO:
3546 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3547 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3548 BIT(NL80211_STA_FLAG_WME) |
3549 BIT(NL80211_STA_FLAG_MFP);
3550 break;
3551 case NL80211_IFTYPE_P2P_CLIENT:
3552 case NL80211_IFTYPE_STATION:
3553 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3554 BIT(NL80211_STA_FLAG_TDLS_PEER);
3555 break;
3556 case NL80211_IFTYPE_MESH_POINT:
3557 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3558 BIT(NL80211_STA_FLAG_MFP) |
3559 BIT(NL80211_STA_FLAG_AUTHORIZED);
3560 default:
3561 return -EINVAL;
3562 }
5727ef1b 3563
3383b5a6
JB		 3564 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3565 if (flags[flag]) {
eccb8e8f 3566 params->sta_flags_set |= (1<<flag);
5727ef1b 3567
3383b5a6
JB		 3568 /* no longer support new API additions in old API */
3569 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3570 return -EINVAL;
3571 }
3572 }
3573
5727ef1b
JB		 3574 return 0;
3575}
3576
c8dcfd8a
FF		 3577static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3578 int attr)
3579{
3580 struct nlattr *rate;
8eb41c8d
VK		 3581 u32 bitrate;
3582 u16 bitrate_compat;
b51f3bee 3583 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3584
3585 rate = nla_nest_start(msg, attr);
3586 if (!rate)
db9c64cf 3587 return false;
c8dcfd8a
FF		 3588
3589 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3590 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3591 /* report 16-bit bitrate only if we can */
3592 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3593 if (bitrate > 0 &&
3594 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3595 return false;
3596 if (bitrate_compat > 0 &&
3597 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3598 return false;
3599
b51f3bee
JB		 3600 switch (info->bw) {
3601 case RATE_INFO_BW_5:
3602 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3603 break;
3604 case RATE_INFO_BW_10:
3605 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3606 break;
3607 default:
3608 WARN_ON(1);
3609 /* fall through */
3610 case RATE_INFO_BW_20:
3611 rate_flg = 0;
3612 break;
3613 case RATE_INFO_BW_40:
3614 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3615 break;
3616 case RATE_INFO_BW_80:
3617 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3618 break;
3619 case RATE_INFO_BW_160:
3620 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3621 break;
3622 }
3623
3624 if (rate_flg && nla_put_flag(msg, rate_flg))
3625 return false;
3626
db9c64cf
JB		 3627 if (info->flags & RATE_INFO_FLAGS_MCS) {
3628 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3629 return false;
db9c64cf
JB		 3630 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3631 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3632 return false;
3633 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3634 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3635 return false;
3636 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3637 return false;
db9c64cf
JB		 3638 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3639 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3640 return false;
3641 }
c8dcfd8a
FF		 3642
3643 nla_nest_end(msg, rate);
3644 return true;
c8dcfd8a
FF		 3645}
3646
119363c7
FF		 3647static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3648 int id)
3649{
3650 void *attr;
3651 int i = 0;
3652
3653 if (!mask)
3654 return true;
3655
3656 attr = nla_nest_start(msg, id);
3657 if (!attr)
3658 return false;
3659
3660 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3661 if (!(mask & BIT(i)))
3662 continue;
3663
3664 if (nla_put_u8(msg, i, signal[i]))
3665 return false;
3666 }
3667
3668 nla_nest_end(msg, attr);
3669
3670 return true;
3671}
3672
cf5ead82
JB		 3673static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3674 u32 seq, int flags,
66266b3a
JL		 3675 struct cfg80211_registered_device *rdev,
3676 struct net_device *dev,
98b62183 3677 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3678{
3679 void *hdr;
f4263c98 3680 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3681
cf5ead82 3682 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3683 if (!hdr)
3684 return -1;
3685
9360ffd1
DM		 3686 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3687 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3688 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3689 goto nla_put_failure;
f5ea9120 3690
2ec600d6
LCC		 3691 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3692 if (!sinfoattr)
fd5b74dc 3693 goto nla_put_failure;
319090bf
JB		 3694
3695#define PUT_SINFO(attr, memb, type) do { \
3696 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3697 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3698 sinfo->memb)) \
3699 goto nla_put_failure; \
3700 } while (0)
3701
3702 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3703 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3704
3705 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3706 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3707 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3708 (u32)sinfo->rx_bytes))
9360ffd1 3709 goto nla_put_failure;
319090bf
JB		 3710
3711 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3712 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3713 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3714 (u32)sinfo->tx_bytes))
3715 goto nla_put_failure;
319090bf
JB		 3716
3717 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3718 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3719 PUT_SINFO(LLID, llid, u16);
3720 PUT_SINFO(PLID, plid, u16);
3721 PUT_SINFO(PLINK_STATE, plink_state, u8);
3722
66266b3a
JL		 3723 switch (rdev->wiphy.signal_type) {
3724 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3725 PUT_SINFO(SIGNAL, signal, u8);
3726 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3727 break;
3728 default:
3729 break;
3730 }
319090bf 3731 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3732 if (!nl80211_put_signal(msg, sinfo->chains,
3733 sinfo->chain_signal,
3734 NL80211_STA_INFO_CHAIN_SIGNAL))
3735 goto nla_put_failure;
3736 }
319090bf 3737 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3738 if (!nl80211_put_signal(msg, sinfo->chains,
3739 sinfo->chain_signal_avg,
3740 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3741 goto nla_put_failure;
3742 }
319090bf 3743 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3744 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3745 NL80211_STA_INFO_TX_BITRATE))
3746 goto nla_put_failure;
3747 }
319090bf 3748 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3749 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3750 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3751 goto nla_put_failure;
420e7fab 3752 }
319090bf
JB		 3753
3754 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3755 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3756 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3757 PUT_SINFO(TX_FAILED, tx_failed, u32);
3758 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3759 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3760 PUT_SINFO(LOCAL_PM, local_pm, u32);
3761 PUT_SINFO(PEER_PM, peer_pm, u32);
3762 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3763
3764 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3765 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3766 if (!bss_param)
3767 goto nla_put_failure;
3768
9360ffd1
DM		 3769 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3770 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3771 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3772 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3773 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3774 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3775 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3776 sinfo->bss_param.dtim_period) ||
3777 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3778 sinfo->bss_param.beacon_interval))
3779 goto nla_put_failure;
f4263c98
PS		 3780
3781 nla_nest_end(msg, bss_param);
3782 }
319090bf 3783 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3784 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3785 sizeof(struct nl80211_sta_flag_update),
3786 &sinfo->sta_flags))
3787 goto nla_put_failure;
319090bf
JB		 3788
3789 PUT_SINFO(T_OFFSET, t_offset, u64);
3790 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3791 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3792 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3793
3794#undef PUT_SINFO
6de39808
JB		 3795
3796 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3797 struct nlattr *tidsattr;
3798 int tid;
3799
3800 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3801 if (!tidsattr)
3802 goto nla_put_failure;
3803
3804 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3805 struct cfg80211_tid_stats *tidstats;
3806 struct nlattr *tidattr;
3807
3808 tidstats = &sinfo->pertid[tid];
3809
3810 if (!tidstats->filled)
3811 continue;
3812
3813 tidattr = nla_nest_start(msg, tid + 1);
3814 if (!tidattr)
3815 goto nla_put_failure;
3816
3817#define PUT_TIDVAL(attr, memb, type) do { \
3818 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3819 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3820 tidstats->memb)) \
3821 goto nla_put_failure; \
3822 } while (0)
3823
3824 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3825 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3826 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3827 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3828
3829#undef PUT_TIDVAL
3830 nla_nest_end(msg, tidattr);
3831 }
3832
3833 nla_nest_end(msg, tidsattr);
3834 }
3835
2ec600d6 3836 nla_nest_end(msg, sinfoattr);
fd5b74dc 3837
319090bf 3838 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3839 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3840 sinfo->assoc_req_ies))
3841 goto nla_put_failure;
50d3dfb7 3842
fd5b74dc
JB		 3843 return genlmsg_end(msg, hdr);
3844
3845 nla_put_failure:
bc3ed28c
TG		 3846 genlmsg_cancel(msg, hdr);
3847 return -EMSGSIZE;
fd5b74dc
JB		 3848}
3849
2ec600d6 3850static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3851 struct netlink_callback *cb)
2ec600d6 3852{
2ec600d6 3853 struct station_info sinfo;
1b8ec87a 3854 struct cfg80211_registered_device *rdev;
97990a06 3855 struct wireless_dev *wdev;
2ec600d6 3856 u8 mac_addr[ETH_ALEN];
97990a06 3857 int sta_idx = cb->args[2];
2ec600d6 3858 int err;
2ec600d6 3859
1b8ec87a 3860 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3861 if (err)
3862 return err;
bba95fef 3863
97990a06
JB		 3864 if (!wdev->netdev) {
3865 err = -EINVAL;
3866 goto out_err;
3867 }
3868
1b8ec87a 3869 if (!rdev->ops->dump_station) {
eec60b03 3870 err = -EOPNOTSUPP;
bba95fef
JB		 3871 goto out_err;
3872 }
3873
bba95fef 3874 while (1) {
f612cedf 3875 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3876 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3877 mac_addr, &sinfo);
bba95fef
JB		 3878 if (err == -ENOENT)
3879 break;
3880 if (err)
3b85875a 3881 goto out_err;
bba95fef 3882
cf5ead82 3883 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3884 NETLINK_CB(cb->skb).portid,
bba95fef 3885 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3886 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3887 &sinfo) < 0)
3888 goto out;
3889
3890 sta_idx++;
3891 }
3892
3893
3894 out:
97990a06 3895 cb->args[2] = sta_idx;
bba95fef 3896 err = skb->len;
bba95fef 3897 out_err:
1b8ec87a 3898 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3899
3900 return err;
2ec600d6 3901}
fd5b74dc 3902
5727ef1b
JB		 3903static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3904{
4c476991
JB		 3905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3906 struct net_device *dev = info->user_ptr[1];
2ec600d6 3907 struct station_info sinfo;
fd5b74dc
JB		 3908 struct sk_buff *msg;
3909 u8 *mac_addr = NULL;
4c476991 3910 int err;
fd5b74dc 3911
2ec600d6 3912 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3913
3914 if (!info->attrs[NL80211_ATTR_MAC])
3915 return -EINVAL;
3916
3917 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3918
4c476991
JB		 3919 if (!rdev->ops->get_station)
3920 return -EOPNOTSUPP;
3b85875a 3921
e35e4d28 3922 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3923 if (err)
4c476991 3924 return err;
2ec600d6 3925
fd2120ca 3926 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3927 if (!msg)
4c476991 3928 return -ENOMEM;
fd5b74dc 3929
cf5ead82
JB		 3930 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3931 info->snd_portid, info->snd_seq, 0,
66266b3a 3932 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3933 nlmsg_free(msg);
3934 return -ENOBUFS;
3935 }
3b85875a 3936
4c476991 3937 return genlmsg_reply(msg, info);
5727ef1b
JB		 3938}
3939
77ee7c89
JB		 3940int cfg80211_check_station_change(struct wiphy *wiphy,
3941 struct station_parameters *params,
3942 enum cfg80211_station_type statype)
3943{
3944 if (params->listen_interval != -1)
3945 return -EINVAL;
c72e1140
AN		 3946 if (params->aid &&
3947 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3948 return -EINVAL;
3949
3950 /* When you run into this, adjust the code below for the new flag */
3951 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3952
3953 switch (statype) {
eef941e6
TP		 3954 case CFG80211_STA_MESH_PEER_KERNEL:
3955 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3956 /*
3957 * No ignoring the TDLS flag here -- the userspace mesh
3958 * code doesn't have the bug of including TDLS in the
3959 * mask everywhere.
3960 */
3961 if (params->sta_flags_mask &
3962 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3963 BIT(NL80211_STA_FLAG_MFP) |
3964 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3965 return -EINVAL;
3966 break;
3967 case CFG80211_STA_TDLS_PEER_SETUP:
3968 case CFG80211_STA_TDLS_PEER_ACTIVE:
3969 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3970 return -EINVAL;
3971 /* ignore since it can't change */
3972 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3973 break;
3974 default:
3975 /* disallow mesh-specific things */
3976 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3977 return -EINVAL;
3978 if (params->local_pm)
3979 return -EINVAL;
3980 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3981 return -EINVAL;
3982 }
3983
3984 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3985 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3986 /* TDLS can't be set, ... */
3987 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3988 return -EINVAL;
3989 /*
3990 * ... but don't bother the driver with it. This works around
3991 * a hostapd/wpa_supplicant issue -- it always includes the
3992 * TLDS_PEER flag in the mask even for AP mode.
3993 */
3994 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3995 }
3996
3997 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3998 /* reject other things that can't change */
3999 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4000 return -EINVAL;
4001 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4002 return -EINVAL;
4003 if (params->supported_rates)
4004 return -EINVAL;
4005 if (params->ext_capab || params->ht_capa || params->vht_capa)
4006 return -EINVAL;
4007 }
4008
4009 if (statype != CFG80211_STA_AP_CLIENT) {
4010 if (params->vlan)
4011 return -EINVAL;
4012 }
4013
4014 switch (statype) {
4015 case CFG80211_STA_AP_MLME_CLIENT:
4016 /* Use this only for authorizing/unauthorizing a station */
4017 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4018 return -EOPNOTSUPP;
4019 break;
4020 case CFG80211_STA_AP_CLIENT:
4021 /* accept only the listed bits */
4022 if (params->sta_flags_mask &
4023 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4024 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4025 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4026 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4027 BIT(NL80211_STA_FLAG_WME) |
4028 BIT(NL80211_STA_FLAG_MFP)))
4029 return -EINVAL;
4030
4031 /* but authenticated/associated only if driver handles it */
4032 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4033 params->sta_flags_mask &
4034 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4035 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4036 return -EINVAL;
4037 break;
4038 case CFG80211_STA_IBSS:
4039 case CFG80211_STA_AP_STA:
4040 /* reject any changes other than AUTHORIZED */
4041 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4042 return -EINVAL;
4043 break;
4044 case CFG80211_STA_TDLS_PEER_SETUP:
4045 /* reject any changes other than AUTHORIZED or WME */
4046 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4047 BIT(NL80211_STA_FLAG_WME)))
4048 return -EINVAL;
4049 /* force (at least) rates when authorizing */
4050 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4051 !params->supported_rates)
4052 return -EINVAL;
4053 break;
4054 case CFG80211_STA_TDLS_PEER_ACTIVE:
4055 /* reject any changes */
4056 return -EINVAL;
eef941e6 4057 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4058 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4059 return -EINVAL;
4060 break;
eef941e6 4061 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4062 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4063 return -EINVAL;
4064 break;
4065 }
4066
4067 return 0;
4068}
4069EXPORT_SYMBOL(cfg80211_check_station_change);
4070
5727ef1b 4071/*
c258d2de 4072 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4073 */
80b99899
JB		 4074static struct net_device *get_vlan(struct genl_info *info,
4075 struct cfg80211_registered_device *rdev)
5727ef1b 4076{
463d0183 4077 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4078 struct net_device *v;
4079 int ret;
4080
4081 if (!vlanattr)
4082 return NULL;
4083
4084 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4085 if (!v)
4086 return ERR_PTR(-ENODEV);
4087
4088 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4089 ret = -EINVAL;
4090 goto error;
5727ef1b 4091 }
80b99899 4092
77ee7c89
JB		 4093 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4094 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4095 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4096 ret = -EINVAL;
4097 goto error;
4098 }
4099
80b99899
JB		 4100 if (!netif_running(v)) {
4101 ret = -ENETDOWN;
4102 goto error;
4103 }
4104
4105 return v;
4106 error:
4107 dev_put(v);
4108 return ERR_PTR(ret);
5727ef1b
JB		 4109}
4110
94e860f1
JB		 4111static const struct nla_policy
4112nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4113 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4114 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4115};
4116
ff276691
JB		 4117static int nl80211_parse_sta_wme(struct genl_info *info,
4118 struct station_parameters *params)
df881293 4119{
df881293
JM		 4120 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4121 struct nlattr *nla;
4122 int err;
4123
df881293
JM		 4124 /* parse WME attributes if present */
4125 if (!info->attrs[NL80211_ATTR_STA_WME])
4126 return 0;
4127
4128 nla = info->attrs[NL80211_ATTR_STA_WME];
4129 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4130 nl80211_sta_wme_policy);
4131 if (err)
4132 return err;
4133
4134 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4135 params->uapsd_queues = nla_get_u8(
4136 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4137 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4138 return -EINVAL;
4139
4140 if (tb[NL80211_STA_WME_MAX_SP])
4141 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4142
4143 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4144 return -EINVAL;
4145
4146 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4147
4148 return 0;
4149}
4150
c01fc9ad
SD		 4151static int nl80211_parse_sta_channel_info(struct genl_info *info,
4152 struct station_parameters *params)
4153{
4154 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4155 params->supported_channels =
4156 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4157 params->supported_channels_len =
4158 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4159 /*
4160 * Need to include at least one (first channel, number of
4161 * channels) tuple for each subband, and must have proper
4162 * tuples for the rest of the data as well.
4163 */
4164 if (params->supported_channels_len < 2)
4165 return -EINVAL;
4166 if (params->supported_channels_len % 2)
4167 return -EINVAL;
4168 }
4169
4170 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4171 params->supported_oper_classes =
4172 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4173 params->supported_oper_classes_len =
4174 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4175 /*
4176 * The value of the Length field of the Supported Operating
4177 * Classes element is between 2 and 253.
4178 */
4179 if (params->supported_oper_classes_len < 2 ||
4180 params->supported_oper_classes_len > 253)
4181 return -EINVAL;
4182 }
4183 return 0;
4184}
4185
ff276691
JB		 4186static int nl80211_set_station_tdls(struct genl_info *info,
4187 struct station_parameters *params)
4188{
c01fc9ad 4189 int err;
ff276691 4190 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4191 if (info->attrs[NL80211_ATTR_PEER_AID])
4192 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4193 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4194 params->ht_capa =
4195 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4196 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4197 params->vht_capa =
4198 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4199
c01fc9ad
SD		 4200 err = nl80211_parse_sta_channel_info(info, params);
4201 if (err)
4202 return err;
4203
ff276691
JB		 4204 return nl80211_parse_sta_wme(info, params);
4205}
4206
5727ef1b
JB		 4207static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4208{
4c476991 4209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4210 struct net_device *dev = info->user_ptr[1];
5727ef1b 4211 struct station_parameters params;
77ee7c89
JB		 4212 u8 *mac_addr;
4213 int err;
5727ef1b
JB		 4214
4215 memset(&params, 0, sizeof(params));
4216
4217 params.listen_interval = -1;
4218
77ee7c89
JB		 4219 if (!rdev->ops->change_station)
4220 return -EOPNOTSUPP;
4221
5727ef1b
JB		 4222 if (info->attrs[NL80211_ATTR_STA_AID])
4223 return -EINVAL;
4224
4225 if (!info->attrs[NL80211_ATTR_MAC])
4226 return -EINVAL;
4227
4228 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4229
4230 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4231 params.supported_rates =
4232 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4233 params.supported_rates_len =
4234 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4235 }
4236
9d62a986
JM		 4237 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4238 params.capability =
4239 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4240 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4241 }
4242
4243 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4244 params.ext_capab =
4245 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4246 params.ext_capab_len =
4247 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4248 }
4249
df881293 4250 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4251 return -EINVAL;
36aedc90 4252
bdd3ae3d 4253 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4254 return -EINVAL;
4255
f8bacc21 4256 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4257 params.plink_action =
f8bacc21
JB		 4258 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4259 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4260 return -EINVAL;
4261 }
2ec600d6 4262
f8bacc21 4263 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4264 params.plink_state =
f8bacc21
JB		 4265 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4266 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4267 return -EINVAL;
4268 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4269 }
9c3990aa 4270
3b1c5a53
MP		 4271 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4272 enum nl80211_mesh_power_mode pm = nla_get_u32(
4273 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4274
4275 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4276 pm > NL80211_MESH_POWER_MAX)
4277 return -EINVAL;
4278
4279 params.local_pm = pm;
4280 }
4281
77ee7c89
JB		 4282 /* Include parameters for TDLS peer (will check later) */
4283 err = nl80211_set_station_tdls(info, &params);
4284 if (err)
4285 return err;
4286
4287 params.vlan = get_vlan(info, rdev);
4288 if (IS_ERR(params.vlan))
4289 return PTR_ERR(params.vlan);
4290
a97f4424
JB		 4291 switch (dev->ieee80211_ptr->iftype) {
4292 case NL80211_IFTYPE_AP:
4293 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4294 case NL80211_IFTYPE_P2P_GO:
074ac8df 4295 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4296 case NL80211_IFTYPE_STATION:
267335d6 4297 case NL80211_IFTYPE_ADHOC:
a97f4424 4298 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4299 break;
4300 default:
77ee7c89
JB		 4301 err = -EOPNOTSUPP;
4302 goto out_put_vlan;
034d655e
JB		 4303 }
4304
77ee7c89 4305 /* driver will call cfg80211_check_station_change() */
e35e4d28 4306 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4307
77ee7c89 4308 out_put_vlan:
5727ef1b
JB		 4309 if (params.vlan)
4310 dev_put(params.vlan);
3b85875a 4311
5727ef1b
JB		 4312 return err;
4313}
4314
4315static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4316{
4c476991 4317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4318 int err;
4c476991 4319 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4320 struct station_parameters params;
4321 u8 *mac_addr = NULL;
4322
4323 memset(&params, 0, sizeof(params));
4324
984c311b
JB		 4325 if (!rdev->ops->add_station)
4326 return -EOPNOTSUPP;
4327
5727ef1b
JB		 4328 if (!info->attrs[NL80211_ATTR_MAC])
4329 return -EINVAL;
4330
5727ef1b
JB		 4331 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4332 return -EINVAL;
4333
4334 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4335 return -EINVAL;
4336
5e4b6f56
JM		 4337 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4338 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4339 return -EINVAL;
4340
5727ef1b
JB		 4341 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4342 params.supported_rates =
4343 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4344 params.supported_rates_len =
4345 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4346 params.listen_interval =
4347 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4348
3d124ea2 4349 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4350 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4351 else
4352 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4353 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4354 return -EINVAL;
51b50fbe 4355
9d62a986
JM		 4356 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4357 params.capability =
4358 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4359 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4360 }
4361
4362 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4363 params.ext_capab =
4364 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4365 params.ext_capab_len =
4366 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4367 }
4368
36aedc90
JM		 4369 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4370 params.ht_capa =
4371 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4372
f461be3e
MP		 4373 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4374 params.vht_capa =
4375 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4376
60f4a7b1
MK		 4377 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4378 params.opmode_notif_used = true;
4379 params.opmode_notif =
4380 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4381 }
4382
f8bacc21 4383 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4384 params.plink_action =
f8bacc21
JB		 4385 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4386 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4387 return -EINVAL;
4388 }
96b78dff 4389
c01fc9ad
SD		 4390 err = nl80211_parse_sta_channel_info(info, &params);
4391 if (err)
4392 return err;
4393
ff276691
JB		 4394 err = nl80211_parse_sta_wme(info, &params);
4395 if (err)
4396 return err;
bdd90d5e 4397
bdd3ae3d 4398 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4399 return -EINVAL;
4400
77ee7c89
JB		 4401 /* When you run into this, adjust the code below for the new flag */
4402 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4403
bdd90d5e
JB		 4404 switch (dev->ieee80211_ptr->iftype) {
4405 case NL80211_IFTYPE_AP:
4406 case NL80211_IFTYPE_AP_VLAN:
4407 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4408 /* ignore WME attributes if iface/sta is not capable */
4409 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4410 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4411 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4412
bdd90d5e 4413 /* TDLS peers cannot be added */
3d124ea2
JM		 4414 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4415 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4416 return -EINVAL;
bdd90d5e
JB		 4417 /* but don't bother the driver with it */
4418 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4419
d582cffb
JB		 4420 /* allow authenticated/associated only if driver handles it */
4421 if (!(rdev->wiphy.features &
4422 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4423 params.sta_flags_mask &
4424 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4425 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4426 return -EINVAL;
4427
bdd90d5e
JB		 4428 /* must be last in here for error handling */
4429 params.vlan = get_vlan(info, rdev);
4430 if (IS_ERR(params.vlan))
4431 return PTR_ERR(params.vlan);
4432 break;
4433 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4434 /* ignore uAPSD data */
4435 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4436
d582cffb
JB		 4437 /* associated is disallowed */
4438 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4439 return -EINVAL;
bdd90d5e 4440 /* TDLS peers cannot be added */
3d124ea2
JM		 4441 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4442 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4443 return -EINVAL;
4444 break;
4445 case NL80211_IFTYPE_STATION:
93d08f0b 4446 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4447 /* ignore uAPSD data */
4448 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4449
77ee7c89
JB		 4450 /* these are disallowed */
4451 if (params.sta_flags_mask &
4452 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4453 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4454 return -EINVAL;
bdd90d5e
JB		 4455 /* Only TDLS peers can be added */
4456 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4457 return -EINVAL;
4458 /* Can only add if TDLS ... */
4459 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4460 return -EOPNOTSUPP;
4461 /* ... with external setup is supported */
4462 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4463 return -EOPNOTSUPP;
77ee7c89
JB		 4464 /*
4465 * Older wpa_supplicant versions always mark the TDLS peer
4466 * as authorized, but it shouldn't yet be.
4467 */
4468 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4469 break;
4470 default:
4471 return -EOPNOTSUPP;
c75786c9
EP		 4472 }
4473
bdd90d5e 4474 /* be aware of params.vlan when changing code here */
5727ef1b 4475
e35e4d28 4476 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4477
5727ef1b
JB		 4478 if (params.vlan)
4479 dev_put(params.vlan);
5727ef1b
JB		 4480 return err;
4481}
4482
4483static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4484{
4c476991
JB		 4485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4486 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4487 struct station_del_parameters params;
4488
4489 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4490
4491 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4492 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4493
e80cf853 4494 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4498 return -EINVAL;
5727ef1b 4499
4c476991
JB		 4500 if (!rdev->ops->del_station)
4501 return -EOPNOTSUPP;
3b85875a 4502
98856866
JM		 4503 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4504 params.subtype =
4505 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4506 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4507 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4508 return -EINVAL;
4509 } else {
4510 /* Default to Deauthentication frame */
4511 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4512 }
4513
4514 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4515 params.reason_code =
4516 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4517 if (params.reason_code == 0)
4518 return -EINVAL; /* 0 is reserved */
4519 } else {
4520 /* Default to reason code 2 */
4521 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4522 }
4523
89c771e5 4524 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4525}
4526
15e47304 4527static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4528 int flags, struct net_device *dev,
4529 u8 *dst, u8 *next_hop,
4530 struct mpath_info *pinfo)
4531{
4532 void *hdr;
4533 struct nlattr *pinfoattr;
4534
1ef4c850 4535 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4536 if (!hdr)
4537 return -1;
4538
9360ffd1
DM		 4539 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4540 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4541 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4542 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4543 goto nla_put_failure;
f5ea9120 4544
2ec600d6
LCC		 4545 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4546 if (!pinfoattr)
4547 goto nla_put_failure;
9360ffd1
DM		 4548 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4549 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4550 pinfo->frame_qlen))
4551 goto nla_put_failure;
4552 if (((pinfo->filled & MPATH_INFO_SN) &&
4553 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4554 ((pinfo->filled & MPATH_INFO_METRIC) &&
4555 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4556 pinfo->metric)) ||
4557 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4558 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4559 pinfo->exptime)) ||
4560 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4561 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4562 pinfo->flags)) ||
4563 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4564 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4565 pinfo->discovery_timeout)) ||
4566 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4567 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4568 pinfo->discovery_retries)))
4569 goto nla_put_failure;
2ec600d6
LCC		 4570
4571 nla_nest_end(msg, pinfoattr);
4572
4573 return genlmsg_end(msg, hdr);
4574
4575 nla_put_failure:
bc3ed28c
TG		 4576 genlmsg_cancel(msg, hdr);
4577 return -EMSGSIZE;
2ec600d6
LCC		 4578}
4579
4580static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4581 struct netlink_callback *cb)
2ec600d6 4582{
2ec600d6 4583 struct mpath_info pinfo;
1b8ec87a 4584 struct cfg80211_registered_device *rdev;
97990a06 4585 struct wireless_dev *wdev;
2ec600d6
LCC		 4586 u8 dst[ETH_ALEN];
4587 u8 next_hop[ETH_ALEN];
97990a06 4588 int path_idx = cb->args[2];
2ec600d6 4589 int err;
2ec600d6 4590
1b8ec87a 4591 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4592 if (err)
4593 return err;
bba95fef 4594
1b8ec87a 4595 if (!rdev->ops->dump_mpath) {
eec60b03 4596 err = -EOPNOTSUPP;
bba95fef
JB		 4597 goto out_err;
4598 }
4599
97990a06 4600 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4601 err = -EOPNOTSUPP;
0448b5fc 4602 goto out_err;
eec60b03
JM		 4603 }
4604
bba95fef 4605 while (1) {
1b8ec87a 4606 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4607 next_hop, &pinfo);
bba95fef 4608 if (err == -ENOENT)
2ec600d6 4609 break;
bba95fef 4610 if (err)
3b85875a 4611 goto out_err;
2ec600d6 4612
15e47304 4613 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4614 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4615 wdev->netdev, dst, next_hop,
bba95fef
JB		 4616 &pinfo) < 0)
4617 goto out;
2ec600d6 4618
bba95fef 4619 path_idx++;
2ec600d6 4620 }
2ec600d6 4621
2ec600d6 4622
bba95fef 4623 out:
97990a06 4624 cb->args[2] = path_idx;
bba95fef 4625 err = skb->len;
bba95fef 4626 out_err:
1b8ec87a 4627 nl80211_finish_wdev_dump(rdev);
bba95fef 4628 return err;
2ec600d6
LCC		 4629}
4630
4631static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4632{
4c476991 4633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4634 int err;
4c476991 4635 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4636 struct mpath_info pinfo;
4637 struct sk_buff *msg;
4638 u8 *dst = NULL;
4639 u8 next_hop[ETH_ALEN];
4640
4641 memset(&pinfo, 0, sizeof(pinfo));
4642
4643 if (!info->attrs[NL80211_ATTR_MAC])
4644 return -EINVAL;
4645
4646 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4647
4c476991
JB		 4648 if (!rdev->ops->get_mpath)
4649 return -EOPNOTSUPP;
2ec600d6 4650
4c476991
JB		 4651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4652 return -EOPNOTSUPP;
eec60b03 4653
e35e4d28 4654 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4655 if (err)
4c476991 4656 return err;
2ec600d6 4657
fd2120ca 4658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4659 if (!msg)
4c476991 4660 return -ENOMEM;
2ec600d6 4661
15e47304 4662 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4663 dev, dst, next_hop, &pinfo) < 0) {
4664 nlmsg_free(msg);
4665 return -ENOBUFS;
4666 }
3b85875a 4667
4c476991 4668 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4669}
4670
4671static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4672{
4c476991
JB		 4673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4674 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4675 u8 *dst = NULL;
4676 u8 *next_hop = NULL;
4677
4678 if (!info->attrs[NL80211_ATTR_MAC])
4679 return -EINVAL;
4680
4681 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4682 return -EINVAL;
4683
4684 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4685 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4686
4c476991
JB		 4687 if (!rdev->ops->change_mpath)
4688 return -EOPNOTSUPP;
35a8efe1 4689
4c476991
JB		 4690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4691 return -EOPNOTSUPP;
2ec600d6 4692
e35e4d28 4693 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4694}
4c476991 4695
2ec600d6
LCC		 4696static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4697{
4c476991
JB		 4698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4699 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4700 u8 *dst = NULL;
4701 u8 *next_hop = NULL;
4702
4703 if (!info->attrs[NL80211_ATTR_MAC])
4704 return -EINVAL;
4705
4706 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4707 return -EINVAL;
4708
4709 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4710 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4711
4c476991
JB		 4712 if (!rdev->ops->add_mpath)
4713 return -EOPNOTSUPP;
35a8efe1 4714
4c476991
JB		 4715 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4716 return -EOPNOTSUPP;
2ec600d6 4717
e35e4d28 4718 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4719}
4720
4721static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4722{
4c476991
JB		 4723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4724 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4725 u8 *dst = NULL;
4726
4727 if (info->attrs[NL80211_ATTR_MAC])
4728 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4729
4c476991
JB		 4730 if (!rdev->ops->del_mpath)
4731 return -EOPNOTSUPP;
3b85875a 4732
e35e4d28 4733 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4734}
4735
66be7d2b
HR		 4736static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4737{
4738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4739 int err;
4740 struct net_device *dev = info->user_ptr[1];
4741 struct mpath_info pinfo;
4742 struct sk_buff *msg;
4743 u8 *dst = NULL;
4744 u8 mpp[ETH_ALEN];
4745
4746 memset(&pinfo, 0, sizeof(pinfo));
4747
4748 if (!info->attrs[NL80211_ATTR_MAC])
4749 return -EINVAL;
4750
4751 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4752
4753 if (!rdev->ops->get_mpp)
4754 return -EOPNOTSUPP;
4755
4756 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4757 return -EOPNOTSUPP;
4758
4759 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4760 if (err)
4761 return err;
4762
4763 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4764 if (!msg)
4765 return -ENOMEM;
4766
4767 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4768 dev, dst, mpp, &pinfo) < 0) {
4769 nlmsg_free(msg);
4770 return -ENOBUFS;
4771 }
4772
4773 return genlmsg_reply(msg, info);
4774}
4775
4776static int nl80211_dump_mpp(struct sk_buff *skb,
4777 struct netlink_callback *cb)
4778{
4779 struct mpath_info pinfo;
4780 struct cfg80211_registered_device *rdev;
4781 struct wireless_dev *wdev;
4782 u8 dst[ETH_ALEN];
4783 u8 mpp[ETH_ALEN];
4784 int path_idx = cb->args[2];
4785 int err;
4786
4787 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4788 if (err)
4789 return err;
4790
4791 if (!rdev->ops->dump_mpp) {
4792 err = -EOPNOTSUPP;
4793 goto out_err;
4794 }
4795
4796 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4797 err = -EOPNOTSUPP;
4798 goto out_err;
4799 }
4800
4801 while (1) {
4802 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4803 mpp, &pinfo);
4804 if (err == -ENOENT)
4805 break;
4806 if (err)
4807 goto out_err;
4808
4809 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4810 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4811 wdev->netdev, dst, mpp,
4812 &pinfo) < 0)
4813 goto out;
4814
4815 path_idx++;
4816 }
4817
4818 out:
4819 cb->args[2] = path_idx;
4820 err = skb->len;
4821 out_err:
4822 nl80211_finish_wdev_dump(rdev);
4823 return err;
4824}
4825
9f1ba906
JM		 4826static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4827{
4c476991
JB		 4828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4829 struct net_device *dev = info->user_ptr[1];
c56589ed 4830 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4831 struct bss_parameters params;
c56589ed 4832 int err;
9f1ba906
JM		 4833
4834 memset(&params, 0, sizeof(params));
4835 /* default to not changing parameters */
4836 params.use_cts_prot = -1;
4837 params.use_short_preamble = -1;
4838 params.use_short_slot_time = -1;
fd8aaaf3 4839 params.ap_isolate = -1;
50b12f59 4840 params.ht_opmode = -1;
53cabad7
JB		 4841 params.p2p_ctwindow = -1;
4842 params.p2p_opp_ps = -1;
9f1ba906
JM		 4843
4844 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4845 params.use_cts_prot =
4846 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4847 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4848 params.use_short_preamble =
4849 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4850 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4851 params.use_short_slot_time =
4852 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4853 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4854 params.basic_rates =
4855 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4856 params.basic_rates_len =
4857 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4858 }
fd8aaaf3
FF		 4859 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4860 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4861 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4862 params.ht_opmode =
4863 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4864
53cabad7
JB		 4865 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4866 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4867 return -EINVAL;
4868 params.p2p_ctwindow =
4869 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4870 if (params.p2p_ctwindow < 0)
4871 return -EINVAL;
4872 if (params.p2p_ctwindow != 0 &&
4873 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4874 return -EINVAL;
4875 }
4876
4877 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4878 u8 tmp;
4879
4880 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4881 return -EINVAL;
4882 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4883 if (tmp > 1)
4884 return -EINVAL;
4885 params.p2p_opp_ps = tmp;
4886 if (params.p2p_opp_ps &&
4887 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4888 return -EINVAL;
4889 }
4890
4c476991
JB		 4891 if (!rdev->ops->change_bss)
4892 return -EOPNOTSUPP;
9f1ba906 4893
074ac8df 4894 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4896 return -EOPNOTSUPP;
3b85875a 4897
c56589ed
SW		 4898 wdev_lock(wdev);
4899 err = rdev_change_bss(rdev, dev, &params);
4900 wdev_unlock(wdev);
4901
4902 return err;
9f1ba906
JM		 4903}
4904
b54452b0 4905static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4906 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4907 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4908 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4909 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4910 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4911 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4912 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4913};
4914
4915static int parse_reg_rule(struct nlattr *tb[],
4916 struct ieee80211_reg_rule *reg_rule)
4917{
4918 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4919 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4920
4921 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4922 return -EINVAL;
4923 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4924 return -EINVAL;
4925 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4926 return -EINVAL;
b0dfd2ea
JD		 4927 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4928 return -EINVAL;
b2e1b302
LR		 4929 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4930 return -EINVAL;
4931
4932 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4933
4934 freq_range->start_freq_khz =
4935 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4936 freq_range->end_freq_khz =
4937 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4938 freq_range->max_bandwidth_khz =
4939 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4940
4941 power_rule->max_eirp =
4942 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4943
4944 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4945 power_rule->max_antenna_gain =
4946 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4947
089027e5
JD		 4948 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4949 reg_rule->dfs_cac_ms =
4950 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4951
b2e1b302
LR		 4952 return 0;
4953}
4954
4955static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4956{
b2e1b302 4957 char *data = NULL;
57b5ce07 4958 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4959
80778f18
LR		 4960 /*
4961 * You should only get this when cfg80211 hasn't yet initialized
4962 * completely when built-in to the kernel right between the time
4963 * window between nl80211_init() and regulatory_init(), if that is
4964 * even possible.
4965 */
458f4f9e 4966 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4967 return -EINPROGRESS;
80778f18 4968
57b5ce07
LR		 4969 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4970 user_reg_hint_type =
4971 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4972 else
4973 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4974
4975 switch (user_reg_hint_type) {
4976 case NL80211_USER_REG_HINT_USER:
4977 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4978 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4979 return -EINVAL;
4980
4981 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4982 return regulatory_hint_user(data, user_reg_hint_type);
4983 case NL80211_USER_REG_HINT_INDOOR:
4984 return regulatory_hint_indoor_user();
57b5ce07
LR		 4985 default:
4986 return -EINVAL;
4987 }
b2e1b302
LR		 4988}
4989
24bdd9f4 4990static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4991 struct genl_info *info)
93da9cc1 4992{
4c476991 4993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4994 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4995 struct wireless_dev *wdev = dev->ieee80211_ptr;
4996 struct mesh_config cur_params;
4997 int err = 0;
93da9cc1 4998 void *hdr;
4999 struct nlattr *pinfoattr;
5000 struct sk_buff *msg;
5001
29cbe68c
JB		 5002 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5003 return -EOPNOTSUPP;
5004
24bdd9f4 5005 if (!rdev->ops->get_mesh_config)
4c476991 5006 return -EOPNOTSUPP;
f3f92586 5007
29cbe68c
JB		 5008 wdev_lock(wdev);
5009 /* If not connected, get default parameters */
5010 if (!wdev->mesh_id_len)
5011 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5012 else
e35e4d28 5013 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5014 wdev_unlock(wdev);
5015
93da9cc1 5016 if (err)
4c476991 5017 return err;
93da9cc1 5018
5019 /* Draw up a netlink message to send back */
fd2120ca 5020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5021 if (!msg)
5022 return -ENOMEM;
15e47304 5023 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5024 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5025 if (!hdr)
efe1cf0c 5026 goto out;
24bdd9f4 5027 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5028 if (!pinfoattr)
5029 goto nla_put_failure;
9360ffd1
DM		 5030 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5031 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5032 cur_params.dot11MeshRetryTimeout) ||
5033 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5034 cur_params.dot11MeshConfirmTimeout) ||
5035 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5036 cur_params.dot11MeshHoldingTimeout) ||
5037 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5038 cur_params.dot11MeshMaxPeerLinks) ||
5039 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5040 cur_params.dot11MeshMaxRetries) ||
5041 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5042 cur_params.dot11MeshTTL) ||
5043 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5044 cur_params.element_ttl) ||
5045 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5046 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5047 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5048 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5049 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5050 cur_params.dot11MeshHWMPmaxPREQretries) ||
5051 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5052 cur_params.path_refresh_time) ||
5053 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5054 cur_params.min_discovery_timeout) ||
5055 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5056 cur_params.dot11MeshHWMPactivePathTimeout) ||
5057 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5058 cur_params.dot11MeshHWMPpreqMinInterval) ||
5059 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5060 cur_params.dot11MeshHWMPperrMinInterval) ||
5061 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5062 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5063 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5064 cur_params.dot11MeshHWMPRootMode) ||
5065 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5066 cur_params.dot11MeshHWMPRannInterval) ||
5067 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5068 cur_params.dot11MeshGateAnnouncementProtocol) ||
5069 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5070 cur_params.dot11MeshForwarding) ||
5071 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5072 cur_params.rssi_threshold) ||
5073 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5074 cur_params.ht_opmode) ||
5075 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5076 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5077 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5078 cur_params.dot11MeshHWMProotInterval) ||
5079 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5080 cur_params.dot11MeshHWMPconfirmationInterval) ||
5081 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5082 cur_params.power_mode) ||
5083 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5084 cur_params.dot11MeshAwakeWindowDuration) ||
5085 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5086 cur_params.plink_timeout))
9360ffd1 5087 goto nla_put_failure;
93da9cc1 5088 nla_nest_end(msg, pinfoattr);
5089 genlmsg_end(msg, hdr);
4c476991 5090 return genlmsg_reply(msg, info);
93da9cc1 5091
3b85875a 5092 nla_put_failure:
93da9cc1 5093 genlmsg_cancel(msg, hdr);
efe1cf0c 5094 out:
d080e275 5095 nlmsg_free(msg);
4c476991 5096 return -ENOBUFS;
93da9cc1 5097}
5098
b54452b0 5099static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5100 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5101 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5102 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5103 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5104 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5105 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5106 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5107 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5108 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5109 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5110 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5111 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5112 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5113 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5114 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5115 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5116 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5117 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5118 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5119 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5120 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5121 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5122 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5123 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5124 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5125 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5126 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5127 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5128};
5129
c80d545d
JC		 5130static const struct nla_policy
5131 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5132 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5133 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5134 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5135 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5136 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5137 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5138 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5139 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5140 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5141};
5142
24bdd9f4 5143static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5144 struct mesh_config *cfg,
5145 u32 *mask_out)
93da9cc1 5146{
93da9cc1 5147 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5148 u32 mask = 0;
93da9cc1 5149
ea54fba2
MP		 5150#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5151do { \
5152 if (tb[attr]) { \
5153 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5154 return -EINVAL; \
5155 cfg->param = fn(tb[attr]); \
5156 mask |= (1 << (attr - 1)); \
5157 } \
5158} while (0)
bd90fdcc
JB		 5159
5160
24bdd9f4 5161 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5162 return -EINVAL;
5163 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5164 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5165 nl80211_meshconf_params_policy))
93da9cc1 5166 return -EINVAL;
5167
93da9cc1 5168 /* This makes sure that there aren't more than 32 mesh config
5169 * parameters (otherwise our bitfield scheme would not work.) */
5170 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5171
5172 /* Fill in the params struct */
ea54fba2 5173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5174 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5175 nla_get_u16);
ea54fba2 5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5177 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5178 nla_get_u16);
ea54fba2 5179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5180 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5181 nla_get_u16);
ea54fba2 5182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5183 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5184 nla_get_u16);
ea54fba2 5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5186 mask, NL80211_MESHCONF_MAX_RETRIES,
5187 nla_get_u8);
ea54fba2 5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5189 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5190 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5191 mask, NL80211_MESHCONF_ELEMENT_TTL,
5192 nla_get_u8);
ea54fba2 5193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5194 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5195 nla_get_u8);
ea54fba2
MP		 5196 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5197 1, 255, mask,
a4f606ea
CYY		 5198 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5199 nla_get_u32);
ea54fba2 5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5201 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5202 nla_get_u8);
ea54fba2 5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5204 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5205 nla_get_u32);
ea54fba2 5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5207 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5208 nla_get_u16);
ea54fba2
MP		 5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5210 1, 65535, mask,
a4f606ea
CYY		 5211 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5212 nla_get_u32);
93da9cc1 5213 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5214 1, 65535, mask,
5215 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5216 nla_get_u16);
dca7e943 5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5218 1, 65535, mask,
5219 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5220 nla_get_u16);
93da9cc1 5221 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5222 dot11MeshHWMPnetDiameterTraversalTime,
5223 1, 65535, mask,
a4f606ea
CYY		 5224 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5225 nla_get_u16);
ea54fba2
MP		 5226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5227 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5228 nla_get_u8);
5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5230 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5231 nla_get_u16);
63c5723b 5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5233 dot11MeshGateAnnouncementProtocol, 0, 1,
5234 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5235 nla_get_u8);
ea54fba2 5236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5237 mask, NL80211_MESHCONF_FORWARDING,
5238 nla_get_u8);
83374fe9 5239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5240 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5241 nla_get_s32);
ea54fba2 5242 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5243 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5244 nla_get_u16);
5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5246 1, 65535, mask,
ac1073a6
CYY		 5247 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5248 nla_get_u32);
ea54fba2 5249 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5250 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5251 nla_get_u16);
5252 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5253 dot11MeshHWMPconfirmationInterval,
5254 1, 65535, mask,
728b19e5 5255 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5256 nla_get_u16);
3b1c5a53
MP		 5257 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5258 NL80211_MESH_POWER_ACTIVE,
5259 NL80211_MESH_POWER_MAX,
5260 mask, NL80211_MESHCONF_POWER_MODE,
5261 nla_get_u32);
5262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5263 0, 65535, mask,
5264 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5266 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5267 nla_get_u32);
bd90fdcc
JB		 5268 if (mask_out)
5269 *mask_out = mask;
c80d545d 5270
bd90fdcc
JB		 5271 return 0;
5272
5273#undef FILL_IN_MESH_PARAM_IF_SET
5274}
5275
c80d545d
JC		 5276static int nl80211_parse_mesh_setup(struct genl_info *info,
5277 struct mesh_setup *setup)
5278{
bb2798d4 5279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5280 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5281
5282 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5283 return -EINVAL;
5284 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5285 info->attrs[NL80211_ATTR_MESH_SETUP],
5286 nl80211_mesh_setup_params_policy))
5287 return -EINVAL;
5288
d299a1f2
JC		 5289 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5290 setup->sync_method =
5291 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5292 IEEE80211_SYNC_METHOD_VENDOR :
5293 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5294
c80d545d
JC		 5295 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5296 setup->path_sel_proto =
5297 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5298 IEEE80211_PATH_PROTOCOL_VENDOR :
5299 IEEE80211_PATH_PROTOCOL_HWMP;
5300
5301 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5302 setup->path_metric =
5303 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5304 IEEE80211_PATH_METRIC_VENDOR :
5305 IEEE80211_PATH_METRIC_AIRTIME;
5306
581a8b0f
JC		 5307
5308 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5309 struct nlattr *ieattr =
581a8b0f 5310 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5311 if (!is_valid_ie_attr(ieattr))
5312 return -EINVAL;
581a8b0f
JC		 5313 setup->ie = nla_data(ieattr);
5314 setup->ie_len = nla_len(ieattr);
c80d545d 5315 }
bb2798d4
TP		 5316 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5317 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5318 return -EINVAL;
5319 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5320 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5321 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5322 if (setup->is_secure)
5323 setup->user_mpm = true;
c80d545d 5324
6e16d90b
CT		 5325 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5326 if (!setup->user_mpm)
5327 return -EINVAL;
5328 setup->auth_id =
5329 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5330 }
5331
c80d545d
JC		 5332 return 0;
5333}
5334
24bdd9f4 5335static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5336 struct genl_info *info)
bd90fdcc
JB		 5337{
5338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5339 struct net_device *dev = info->user_ptr[1];
29cbe68c 5340 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5341 struct mesh_config cfg;
5342 u32 mask;
5343 int err;
5344
29cbe68c
JB		 5345 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5346 return -EOPNOTSUPP;
5347
24bdd9f4 5348 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5349 return -EOPNOTSUPP;
5350
24bdd9f4 5351 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5352 if (err)
5353 return err;
5354
29cbe68c
JB		 5355 wdev_lock(wdev);
5356 if (!wdev->mesh_id_len)
5357 err = -ENOLINK;
5358
5359 if (!err)
e35e4d28 5360 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5361
5362 wdev_unlock(wdev);
5363
5364 return err;
93da9cc1 5365}
5366
ad30ca2c
AN		 5367static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5368 struct sk_buff *msg)
f130347c 5369{
f130347c
LR		 5370 struct nlattr *nl_reg_rules;
5371 unsigned int i;
f130347c 5372
458f4f9e
JB		 5373 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5374 (regdom->dfs_region &&
5375 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5376 goto nla_put_failure;
458f4f9e 5377
f130347c
LR		 5378 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5379 if (!nl_reg_rules)
ad30ca2c 5380 goto nla_put_failure;
f130347c 5381
458f4f9e 5382 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5383 struct nlattr *nl_reg_rule;
5384 const struct ieee80211_reg_rule *reg_rule;
5385 const struct ieee80211_freq_range *freq_range;
5386 const struct ieee80211_power_rule *power_rule;
97524820 5387 unsigned int max_bandwidth_khz;
f130347c 5388
458f4f9e 5389 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5390 freq_range = &reg_rule->freq_range;
5391 power_rule = &reg_rule->power_rule;
5392
5393 nl_reg_rule = nla_nest_start(msg, i);
5394 if (!nl_reg_rule)
ad30ca2c 5395 goto nla_put_failure;
f130347c 5396
97524820
JD		 5397 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5398 if (!max_bandwidth_khz)
5399 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5400 reg_rule);
5401
9360ffd1
DM		 5402 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5403 reg_rule->flags) ||
5404 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5405 freq_range->start_freq_khz) ||
5406 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5407 freq_range->end_freq_khz) ||
5408 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5409 max_bandwidth_khz) ||
9360ffd1
DM		 5410 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5411 power_rule->max_antenna_gain) ||
5412 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5413 power_rule->max_eirp) ||
5414 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5415 reg_rule->dfs_cac_ms))
ad30ca2c 5416 goto nla_put_failure;
f130347c
LR		 5417
5418 nla_nest_end(msg, nl_reg_rule);
5419 }
5420
5421 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5422 return 0;
5423
5424nla_put_failure:
5425 return -EMSGSIZE;
5426}
5427
5428static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5429{
5430 const struct ieee80211_regdomain *regdom = NULL;
5431 struct cfg80211_registered_device *rdev;
5432 struct wiphy *wiphy = NULL;
5433 struct sk_buff *msg;
5434 void *hdr;
5435
5436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5437 if (!msg)
5438 return -ENOBUFS;
5439
5440 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5441 NL80211_CMD_GET_REG);
5442 if (!hdr)
5443 goto put_failure;
5444
5445 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5446 bool self_managed;
5447
ad30ca2c
AN		 5448 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5449 if (IS_ERR(rdev)) {
5450 nlmsg_free(msg);
5451 return PTR_ERR(rdev);
5452 }
5453
5454 wiphy = &rdev->wiphy;
1bdd716c
AN		 5455 self_managed = wiphy->regulatory_flags &
5456 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5457 regdom = get_wiphy_regdom(wiphy);
5458
1bdd716c
AN		 5459 /* a self-managed-reg device must have a private regdom */
5460 if (WARN_ON(!regdom && self_managed)) {
5461 nlmsg_free(msg);
5462 return -EINVAL;
5463 }
5464
ad30ca2c
AN		 5465 if (regdom &&
5466 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5467 goto nla_put_failure;
5468 }
5469
5470 if (!wiphy && reg_last_request_cell_base() &&
5471 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5472 NL80211_USER_REG_HINT_CELL_BASE))
5473 goto nla_put_failure;
5474
5475 rcu_read_lock();
5476
5477 if (!regdom)
5478 regdom = rcu_dereference(cfg80211_regdomain);
5479
5480 if (nl80211_put_regdom(regdom, msg))
5481 goto nla_put_failure_rcu;
5482
5483 rcu_read_unlock();
f130347c
LR		 5484
5485 genlmsg_end(msg, hdr);
5fe231e8 5486 return genlmsg_reply(msg, info);
f130347c 5487
458f4f9e
JB		 5488nla_put_failure_rcu:
5489 rcu_read_unlock();
f130347c
LR		 5490nla_put_failure:
5491 genlmsg_cancel(msg, hdr);
efe1cf0c 5492put_failure:
d080e275 5493 nlmsg_free(msg);
5fe231e8 5494 return -EMSGSIZE;
f130347c
LR		 5495}
5496
ad30ca2c
AN		 5497static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5498 u32 seq, int flags, struct wiphy *wiphy,
5499 const struct ieee80211_regdomain *regdom)
5500{
5501 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5502 NL80211_CMD_GET_REG);
5503
5504 if (!hdr)
5505 return -1;
5506
5507 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5508
5509 if (nl80211_put_regdom(regdom, msg))
5510 goto nla_put_failure;
5511
5512 if (!wiphy && reg_last_request_cell_base() &&
5513 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5514 NL80211_USER_REG_HINT_CELL_BASE))
5515 goto nla_put_failure;
5516
5517 if (wiphy &&
5518 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5519 goto nla_put_failure;
5520
1bdd716c
AN		 5521 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5522 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5523 goto nla_put_failure;
5524
ad30ca2c
AN		 5525 return genlmsg_end(msg, hdr);
5526
5527nla_put_failure:
5528 genlmsg_cancel(msg, hdr);
5529 return -EMSGSIZE;
5530}
5531
5532static int nl80211_get_reg_dump(struct sk_buff *skb,
5533 struct netlink_callback *cb)
5534{
5535 const struct ieee80211_regdomain *regdom = NULL;
5536 struct cfg80211_registered_device *rdev;
5537 int err, reg_idx, start = cb->args[2];
5538
5539 rtnl_lock();
5540
5541 if (cfg80211_regdomain && start == 0) {
5542 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5543 NLM_F_MULTI, NULL,
5544 rtnl_dereference(cfg80211_regdomain));
5545 if (err < 0)
5546 goto out_err;
5547 }
5548
5549 /* the global regdom is idx 0 */
5550 reg_idx = 1;
5551 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5552 regdom = get_wiphy_regdom(&rdev->wiphy);
5553 if (!regdom)
5554 continue;
5555
5556 if (++reg_idx <= start)
5557 continue;
5558
5559 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5560 NLM_F_MULTI, &rdev->wiphy, regdom);
5561 if (err < 0) {
5562 reg_idx--;
5563 break;
5564 }
5565 }
5566
5567 cb->args[2] = reg_idx;
5568 err = skb->len;
5569out_err:
5570 rtnl_unlock();
5571 return err;
5572}
5573
b2e1b302
LR		 5574static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5575{
5576 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5577 struct nlattr *nl_reg_rule;
ea372c54
JB		 5578 char *alpha2;
5579 int rem_reg_rules, r;
b2e1b302 5580 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5581 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5582 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5583
5584 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5585 return -EINVAL;
5586
5587 if (!info->attrs[NL80211_ATTR_REG_RULES])
5588 return -EINVAL;
5589
5590 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5591
8b60b078
LR		 5592 if (info->attrs[NL80211_ATTR_DFS_REGION])
5593 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5594
b2e1b302 5595 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5596 rem_reg_rules) {
b2e1b302
LR		 5597 num_rules++;
5598 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5599 return -EINVAL;
b2e1b302
LR		 5600 }
5601
e438768f
LR		 5602 if (!reg_is_valid_request(alpha2))
5603 return -EINVAL;
5604
b2e1b302 5605 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5606 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5607
5608 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5609 if (!rd)
5610 return -ENOMEM;
b2e1b302
LR		 5611
5612 rd->n_reg_rules = num_rules;
5613 rd->alpha2[0] = alpha2[0];
5614 rd->alpha2[1] = alpha2[1];
5615
8b60b078
LR		 5616 /*
5617 * Disable DFS master mode if the DFS region was
5618 * not supported or known on this kernel.
5619 */
5620 if (reg_supported_dfs_region(dfs_region))
5621 rd->dfs_region = dfs_region;
5622
b2e1b302 5623 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5624 rem_reg_rules) {
ae811e21
JB		 5625 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5626 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5627 reg_rule_policy);
5628 if (r)
5629 goto bad_reg;
b2e1b302
LR		 5630 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5631 if (r)
5632 goto bad_reg;
5633
5634 rule_idx++;
5635
d0e18f83
LR		 5636 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5637 r = -EINVAL;
b2e1b302 5638 goto bad_reg;
d0e18f83 5639 }
b2e1b302
LR		 5640 }
5641
b2e1b302 5642 r = set_regdom(rd);
6913b49a 5643 /* set_regdom took ownership */
1a919318 5644 rd = NULL;
b2e1b302 5645
d2372b31 5646 bad_reg:
b2e1b302 5647 kfree(rd);
d0e18f83 5648 return r;
b2e1b302
LR		 5649}
5650
83f5e2cf
JB		 5651static int validate_scan_freqs(struct nlattr *freqs)
5652{
5653 struct nlattr *attr1, *attr2;
5654 int n_channels = 0, tmp1, tmp2;
5655
5656 nla_for_each_nested(attr1, freqs, tmp1) {
5657 n_channels++;
5658 /*
5659 * Some hardware has a limited channel list for
5660 * scanning, and it is pretty much nonsensical
5661 * to scan for a channel twice, so disallow that
5662 * and don't require drivers to check that the
5663 * channel list they get isn't longer than what
5664 * they can scan, as long as they can scan all
5665 * the channels they registered at once.
5666 */
5667 nla_for_each_nested(attr2, freqs, tmp2)
5668 if (attr1 != attr2 &&
5669 nla_get_u32(attr1) == nla_get_u32(attr2))
5670 return 0;
5671 }
5672
5673 return n_channels;
5674}
5675
ad2b26ab
JB		 5676static int nl80211_parse_random_mac(struct nlattr **attrs,
5677 u8 *mac_addr, u8 *mac_addr_mask)
5678{
5679 int i;
5680
5681 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5682 memset(mac_addr, 0, ETH_ALEN);
5683 memset(mac_addr_mask, 0, ETH_ALEN);
5684 mac_addr[0] = 0x2;
5685 mac_addr_mask[0] = 0x3;
5686
5687 return 0;
5688 }
5689
5690 /* need both or none */
5691 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5692 return -EINVAL;
5693
5694 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5695 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5696
5697 /* don't allow or configure an mcast address */
5698 if (!is_multicast_ether_addr(mac_addr_mask) ||
5699 is_multicast_ether_addr(mac_addr))
5700 return -EINVAL;
5701
5702 /*
5703 * allow users to pass a MAC address that has bits set outside
5704 * of the mask, but don't bother drivers with having to deal
5705 * with such bits
5706 */
5707 for (i = 0; i < ETH_ALEN; i++)
5708 mac_addr[i] &= mac_addr_mask[i];
5709
5710 return 0;
5711}
5712
2a519311
JB		 5713static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5714{
4c476991 5715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5716 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5717 struct cfg80211_scan_request *request;
2a519311
JB		 5718 struct nlattr *attr;
5719 struct wiphy *wiphy;
83f5e2cf 5720 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5721 size_t ie_len;
2a519311 5722
f4a11bb0
JB		 5723 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5724 return -EINVAL;
5725
79c97e97 5726 wiphy = &rdev->wiphy;
2a519311 5727
4c476991
JB		 5728 if (!rdev->ops->scan)
5729 return -EOPNOTSUPP;
2a519311 5730
f9d15d16 5731 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5732 err = -EBUSY;
5733 goto unlock;
5734 }
2a519311
JB		 5735
5736 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5737 n_channels = validate_scan_freqs(
5738 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5739 if (!n_channels) {
5740 err = -EINVAL;
5741 goto unlock;
5742 }
2a519311 5743 } else {
bdfbec2d 5744 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5745 }
5746
5747 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5748 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5749 n_ssids++;
5750
f9f47529
JB		 5751 if (n_ssids > wiphy->max_scan_ssids) {
5752 err = -EINVAL;
5753 goto unlock;
5754 }
2a519311 5755
70692ad2
JM		 5756 if (info->attrs[NL80211_ATTR_IE])
5757 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5758 else
5759 ie_len = 0;
5760
f9f47529
JB		 5761 if (ie_len > wiphy->max_scan_ie_len) {
5762 err = -EINVAL;
5763 goto unlock;
5764 }
18a83659 5765
2a519311 5766 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5767 + sizeof(*request->ssids) * n_ssids
5768 + sizeof(*request->channels) * n_channels
70692ad2 5769 + ie_len, GFP_KERNEL);
f9f47529
JB		 5770 if (!request) {
5771 err = -ENOMEM;
5772 goto unlock;
5773 }
2a519311 5774
2a519311 5775 if (n_ssids)
5ba63533 5776 request->ssids = (void *)&request->channels[n_channels];
2a519311 5777 request->n_ssids = n_ssids;
70692ad2
JM		 5778 if (ie_len) {
5779 if (request->ssids)
5780 request->ie = (void *)(request->ssids + n_ssids);
5781 else
5782 request->ie = (void *)(request->channels + n_channels);
5783 }
2a519311 5784
584991dc 5785 i = 0;
2a519311
JB		 5786 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5787 /* user specified, bail out if channel not found */
2a519311 5788 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5789 struct ieee80211_channel *chan;
5790
5791 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5792
5793 if (!chan) {
2a519311
JB		 5794 err = -EINVAL;
5795 goto out_free;
5796 }
584991dc
JB		 5797
5798 /* ignore disabled channels */
5799 if (chan->flags & IEEE80211_CHAN_DISABLED)
5800 continue;
5801
5802 request->channels[i] = chan;
2a519311
JB		 5803 i++;
5804 }
5805 } else {
34850ab2
JB		 5806 enum ieee80211_band band;
5807
2a519311 5808 /* all channels */
2a519311
JB		 5809 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5810 int j;
5811 if (!wiphy->bands[band])
5812 continue;
5813 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5814 struct ieee80211_channel *chan;
5815
5816 chan = &wiphy->bands[band]->channels[j];
5817
5818 if (chan->flags & IEEE80211_CHAN_DISABLED)
5819 continue;
5820
5821 request->channels[i] = chan;
2a519311
JB		 5822 i++;
5823 }
5824 }
5825 }
5826
584991dc
JB		 5827 if (!i) {
5828 err = -EINVAL;
5829 goto out_free;
5830 }
5831
5832 request->n_channels = i;
5833
2a519311
JB		 5834 i = 0;
5835 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5836 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5837 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5838 err = -EINVAL;
5839 goto out_free;
5840 }
57a27e1d 5841 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5842 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5843 i++;
5844 }
5845 }
5846
70692ad2
JM		 5847 if (info->attrs[NL80211_ATTR_IE]) {
5848 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5849 memcpy((void *)request->ie,
5850 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5851 request->ie_len);
5852 }
5853
34850ab2 5854 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5855 if (wiphy->bands[i])
5856 request->rates[i] =
5857 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5858
5859 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5860 nla_for_each_nested(attr,
5861 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5862 tmp) {
5863 enum ieee80211_band band = nla_type(attr);
5864
84404623 5865 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5866 err = -EINVAL;
5867 goto out_free;
5868 }
1b09cd82
FF		 5869
5870 if (!wiphy->bands[band])
5871 continue;
5872
34850ab2
JB		 5873 err = ieee80211_get_ratemask(wiphy->bands[band],
5874 nla_data(attr),
5875 nla_len(attr),
5876 &request->rates[band]);
5877 if (err)
5878 goto out_free;
5879 }
5880 }
5881
46856bbf 5882 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5883 request->flags = nla_get_u32(
5884 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5885 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5886 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5887 err = -EOPNOTSUPP;
5888 goto out_free;
5889 }
ad2b26ab
JB		 5890
5891 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5892 if (!(wiphy->features &
5893 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5894 err = -EOPNOTSUPP;
5895 goto out_free;
5896 }
5897
5898 if (wdev->current_bss) {
5899 err = -EOPNOTSUPP;
5900 goto out_free;
5901 }
5902
5903 err = nl80211_parse_random_mac(info->attrs,
5904 request->mac_addr,
5905 request->mac_addr_mask);
5906 if (err)
5907 goto out_free;
5908 }
46856bbf 5909 }
ed473771 5910
e9f935e3
RM		 5911 request->no_cck =
5912 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5913
fd014284 5914 request->wdev = wdev;
79c97e97 5915 request->wiphy = &rdev->wiphy;
15d6030b 5916 request->scan_start = jiffies;
2a519311 5917
79c97e97 5918 rdev->scan_req = request;
e35e4d28 5919 err = rdev_scan(rdev, request);
2a519311 5920
463d0183 5921 if (!err) {
fd014284
JB		 5922 nl80211_send_scan_start(rdev, wdev);
5923 if (wdev->netdev)
5924 dev_hold(wdev->netdev);
4c476991 5925 } else {
2a519311 5926 out_free:
79c97e97 5927 rdev->scan_req = NULL;
2a519311
JB		 5928 kfree(request);
5929 }
3b85875a 5930
f9f47529 5931 unlock:
2a519311
JB		 5932 return err;
5933}
5934
256da02d 5935static struct cfg80211_sched_scan_request *
ad2b26ab 5936nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5937 struct nlattr **attrs)
807f8a8c
LC		 5938{
5939 struct cfg80211_sched_scan_request *request;
807f8a8c 5940 struct nlattr *attr;
a1f1c21c 5941 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5942 u32 interval;
807f8a8c
LC		 5943 enum ieee80211_band band;
5944 size_t ie_len;
a1f1c21c 5945 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5946 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5947
256da02d
LC		 5948 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5949 return ERR_PTR(-EINVAL);
807f8a8c 5950
256da02d
LC		 5951 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5952 return ERR_PTR(-EINVAL);
bbe6ad6d 5953
256da02d 5954 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5955 if (interval == 0)
256da02d 5956 return ERR_PTR(-EINVAL);
807f8a8c 5957
256da02d 5958 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5959 n_channels = validate_scan_freqs(
256da02d 5960 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5961 if (!n_channels)
256da02d 5962 return ERR_PTR(-EINVAL);
807f8a8c 5963 } else {
bdfbec2d 5964 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5965 }
5966
256da02d
LC		 5967 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5968 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5969 tmp)
5970 n_ssids++;
5971
93b6aa69 5972 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5973 return ERR_PTR(-EINVAL);
807f8a8c 5974
ea73cbce
JB		 5975 /*
5976 * First, count the number of 'real' matchsets. Due to an issue with
5977 * the old implementation, matchsets containing only the RSSI attribute
5978 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5979 * RSSI for all matchsets, rather than their own matchset for reporting
5980 * all APs with a strong RSSI. This is needed to be compatible with
5981 * older userspace that treated a matchset with only the RSSI as the
5982 * global RSSI for all other matchsets - if there are other matchsets.
5983 */
256da02d 5984 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5985 nla_for_each_nested(attr,
256da02d 5986 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5987 tmp) {
5988 struct nlattr *rssi;
5989
5990 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5991 nla_data(attr), nla_len(attr),
5992 nl80211_match_policy);
5993 if (err)
256da02d 5994 return ERR_PTR(err);
ea73cbce
JB		 5995 /* add other standalone attributes here */
5996 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5997 n_match_sets++;
5998 continue;
5999 }
6000 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6001 if (rssi)
6002 default_match_rssi = nla_get_s32(rssi);
6003 }
6004 }
6005
6006 /* However, if there's no other matchset, add the RSSI one */
6007 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6008 n_match_sets = 1;
a1f1c21c
LC		 6009
6010 if (n_match_sets > wiphy->max_match_sets)
256da02d 6011 return ERR_PTR(-EINVAL);
a1f1c21c 6012
256da02d
LC		 6013 if (attrs[NL80211_ATTR_IE])
6014 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6015 else
6016 ie_len = 0;
6017
5a865bad 6018 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6019 return ERR_PTR(-EINVAL);
c10841ca 6020
807f8a8c 6021 request = kzalloc(sizeof(*request)
a2cd43c5 6022 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6023 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6024 + sizeof(*request->channels) * n_channels
807f8a8c 6025 + ie_len, GFP_KERNEL);
256da02d
LC		 6026 if (!request)
6027 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6028
6029 if (n_ssids)
6030 request->ssids = (void *)&request->channels[n_channels];
6031 request->n_ssids = n_ssids;
6032 if (ie_len) {
6033 if (request->ssids)
6034 request->ie = (void *)(request->ssids + n_ssids);
6035 else
6036 request->ie = (void *)(request->channels + n_channels);
6037 }
6038
a1f1c21c
LC		 6039 if (n_match_sets) {
6040 if (request->ie)
6041 request->match_sets = (void *)(request->ie + ie_len);
6042 else if (request->ssids)
6043 request->match_sets =
6044 (void *)(request->ssids + n_ssids);
6045 else
6046 request->match_sets =
6047 (void *)(request->channels + n_channels);
6048 }
6049 request->n_match_sets = n_match_sets;
6050
807f8a8c 6051 i = 0;
256da02d 6052 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6053 /* user specified, bail out if channel not found */
6054 nla_for_each_nested(attr,
256da02d 6055 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6056 tmp) {
6057 struct ieee80211_channel *chan;
6058
6059 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6060
6061 if (!chan) {
6062 err = -EINVAL;
6063 goto out_free;
6064 }
6065
6066 /* ignore disabled channels */
6067 if (chan->flags & IEEE80211_CHAN_DISABLED)
6068 continue;
6069
6070 request->channels[i] = chan;
6071 i++;
6072 }
6073 } else {
6074 /* all channels */
6075 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6076 int j;
6077 if (!wiphy->bands[band])
6078 continue;
6079 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6080 struct ieee80211_channel *chan;
6081
6082 chan = &wiphy->bands[band]->channels[j];
6083
6084 if (chan->flags & IEEE80211_CHAN_DISABLED)
6085 continue;
6086
6087 request->channels[i] = chan;
6088 i++;
6089 }
6090 }
6091 }
6092
6093 if (!i) {
6094 err = -EINVAL;
6095 goto out_free;
6096 }
6097
6098 request->n_channels = i;
6099
6100 i = 0;
256da02d
LC		 6101 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
6102 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6103 tmp) {
57a27e1d 6104 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6105 err = -EINVAL;
6106 goto out_free;
6107 }
57a27e1d 6108 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6109 memcpy(request->ssids[i].ssid, nla_data(attr),
6110 nla_len(attr));
807f8a8c
LC		 6111 i++;
6112 }
6113 }
6114
a1f1c21c 6115 i = 0;
256da02d 6116 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6117 nla_for_each_nested(attr,
256da02d 6118 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6119 tmp) {
88e920b4 6120 struct nlattr *ssid, *rssi;
a1f1c21c 6121
ae811e21
JB		 6122 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6123 nla_data(attr), nla_len(attr),
6124 nl80211_match_policy);
6125 if (err)
6126 goto out_free;
4a4ab0d7 6127 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6128 if (ssid) {
ea73cbce
JB		 6129 if (WARN_ON(i >= n_match_sets)) {
6130 /* this indicates a programming error,
6131 * the loop above should have verified
6132 * things properly
6133 */
6134 err = -EINVAL;
6135 goto out_free;
6136 }
6137
a1f1c21c
LC		 6138 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6139 err = -EINVAL;
6140 goto out_free;
6141 }
6142 memcpy(request->match_sets[i].ssid.ssid,
6143 nla_data(ssid), nla_len(ssid));
6144 request->match_sets[i].ssid.ssid_len =
6145 nla_len(ssid);
ea73cbce
JB		 6146 /* special attribute - old implemenation w/a */
6147 request->match_sets[i].rssi_thold =
6148 default_match_rssi;
6149 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6150 if (rssi)
6151 request->match_sets[i].rssi_thold =
6152 nla_get_s32(rssi);
a1f1c21c
LC		 6153 }
6154 i++;
6155 }
ea73cbce
JB		 6156
6157 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6158 if (i == 0 && n_match_sets)
ea73cbce
JB		 6159 request->match_sets[0].rssi_thold = default_match_rssi;
6160
6161 request->min_rssi_thold = INT_MAX;
6162 for (i = 0; i < n_match_sets; i++)
6163 request->min_rssi_thold =
6164 min(request->match_sets[i].rssi_thold,
6165 request->min_rssi_thold);
6166 } else {
6167 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6168 }
6169
9900e484
JB		 6170 if (ie_len) {
6171 request->ie_len = ie_len;
807f8a8c 6172 memcpy((void *)request->ie,
256da02d 6173 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6174 request->ie_len);
6175 }
6176
256da02d 6177 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6178 request->flags = nla_get_u32(
256da02d 6179 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6180 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6181 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6182 err = -EOPNOTSUPP;
6183 goto out_free;
6184 }
ad2b26ab
JB		 6185
6186 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6187 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6188
6189 if (!wdev) /* must be net-detect */
6190 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6191
6192 if (!(wiphy->features & flg)) {
6193 err = -EOPNOTSUPP;
6194 goto out_free;
6195 }
6196
6197 if (wdev && wdev->current_bss) {
6198 err = -EOPNOTSUPP;
6199 goto out_free;
6200 }
6201
6202 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6203 request->mac_addr_mask);
6204 if (err)
6205 goto out_free;
6206 }
46856bbf 6207 }
ed473771 6208
9c748934
LC		 6209 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6210 request->delay =
6211 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6212
bbe6ad6d 6213 request->interval = interval;
15d6030b 6214 request->scan_start = jiffies;
807f8a8c 6215
256da02d 6216 return request;
807f8a8c
LC		 6217
6218out_free:
6219 kfree(request);
256da02d
LC		 6220 return ERR_PTR(err);
6221}
6222
6223static int nl80211_start_sched_scan(struct sk_buff *skb,
6224 struct genl_info *info)
6225{
6226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6227 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6228 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6229 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6230 int err;
6231
6232 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6233 !rdev->ops->sched_scan_start)
6234 return -EOPNOTSUPP;
6235
6236 if (rdev->sched_scan_req)
6237 return -EINPROGRESS;
6238
31a60ed1
JR		 6239 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6240 info->attrs);
6241
6242 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6243 if (err)
6244 goto out_err;
6245
31a60ed1 6246 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6247 if (err)
6248 goto out_free;
6249
31a60ed1
JR		 6250 sched_scan_req->dev = dev;
6251 sched_scan_req->wiphy = &rdev->wiphy;
6252
93a1e86c
JR		 6253 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6254 sched_scan_req->owner_nlportid = info->snd_portid;
6255
31a60ed1 6256 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6257
6258 nl80211_send_sched_scan(rdev, dev,
6259 NL80211_CMD_START_SCHED_SCAN);
6260 return 0;
6261
6262out_free:
31a60ed1 6263 kfree(sched_scan_req);
256da02d 6264out_err:
807f8a8c
LC		 6265 return err;
6266}
6267
6268static int nl80211_stop_sched_scan(struct sk_buff *skb,
6269 struct genl_info *info)
6270{
6271 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6272
6273 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6274 !rdev->ops->sched_scan_stop)
6275 return -EOPNOTSUPP;
6276
5fe231e8 6277 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6278}
6279
04f39047
SW		 6280static int nl80211_start_radar_detection(struct sk_buff *skb,
6281 struct genl_info *info)
6282{
6283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6284 struct net_device *dev = info->user_ptr[1];
6285 struct wireless_dev *wdev = dev->ieee80211_ptr;
6286 struct cfg80211_chan_def chandef;
55f7435c 6287 enum nl80211_dfs_regions dfs_region;
31559f35 6288 unsigned int cac_time_ms;
04f39047
SW		 6289 int err;
6290
55f7435c
LR		 6291 dfs_region = reg_get_dfs_region(wdev->wiphy);
6292 if (dfs_region == NL80211_DFS_UNSET)
6293 return -EINVAL;
6294
04f39047
SW		 6295 err = nl80211_parse_chandef(rdev, info, &chandef);
6296 if (err)
6297 return err;
6298
ff311bc1
SW		 6299 if (netif_carrier_ok(dev))
6300 return -EBUSY;
6301
04f39047
SW		 6302 if (wdev->cac_started)
6303 return -EBUSY;
6304
2beb6dab 6305 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6306 wdev->iftype);
04f39047
SW		 6307 if (err < 0)
6308 return err;
6309
6310 if (err == 0)
6311 return -EINVAL;
6312
fe7c3a1f 6313 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6314 return -EINVAL;
6315
6316 if (!rdev->ops->start_radar_detection)
6317 return -EOPNOTSUPP;
6318
31559f35
JD		 6319 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6320 if (WARN_ON(!cac_time_ms))
6321 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6322
6323 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6324 cac_time_ms);
04f39047 6325 if (!err) {
9e0e2961 6326 wdev->chandef = chandef;
04f39047
SW		 6327 wdev->cac_started = true;
6328 wdev->cac_start_time = jiffies;
31559f35 6329 wdev->cac_time_ms = cac_time_ms;
04f39047 6330 }
04f39047
SW		 6331 return err;
6332}
6333
16ef1fe2
SW		 6334static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6335{
6336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6337 struct net_device *dev = info->user_ptr[1];
6338 struct wireless_dev *wdev = dev->ieee80211_ptr;
6339 struct cfg80211_csa_settings params;
6340 /* csa_attrs is defined static to avoid waste of stack size - this
6341 * function is called under RTNL lock, so this should not be a problem.
6342 */
6343 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6344 int err;
ee4bc9e7 6345 bool need_new_beacon = false;
9a774c78 6346 int len, i;
252e07ca 6347 u32 cs_count;
16ef1fe2
SW		 6348
6349 if (!rdev->ops->channel_switch ||
6350 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6351 return -EOPNOTSUPP;
6352
ee4bc9e7
SW		 6353 switch (dev->ieee80211_ptr->iftype) {
6354 case NL80211_IFTYPE_AP:
6355 case NL80211_IFTYPE_P2P_GO:
6356 need_new_beacon = true;
6357
6358 /* useless if AP is not running */
6359 if (!wdev->beacon_interval)
1ff79dfa 6360 return -ENOTCONN;
ee4bc9e7
SW		 6361 break;
6362 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6363 if (!wdev->ssid_len)
6364 return -ENOTCONN;
6365 break;
c6da674a 6366 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6367 if (!wdev->mesh_id_len)
6368 return -ENOTCONN;
ee4bc9e7
SW		 6369 break;
6370 default:
16ef1fe2 6371 return -EOPNOTSUPP;
ee4bc9e7 6372 }
16ef1fe2
SW		 6373
6374 memset(&params, 0, sizeof(params));
6375
6376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6377 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6378 return -EINVAL;
6379
6380 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6381 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6382 return -EINVAL;
6383
252e07ca
LC		 6384 /* Even though the attribute is u32, the specification says
6385 * u8, so let's make sure we don't overflow.
6386 */
6387 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6388 if (cs_count > 255)
6389 return -EINVAL;
6390
6391 params.count = cs_count;
16ef1fe2 6392
ee4bc9e7
SW		 6393 if (!need_new_beacon)
6394 goto skip_beacons;
6395
16ef1fe2
SW		 6396 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6397 if (err)
6398 return err;
6399
6400 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6401 info->attrs[NL80211_ATTR_CSA_IES],
6402 nl80211_policy);
6403 if (err)
6404 return err;
6405
6406 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6407 if (err)
6408 return err;
6409
6410 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6411 return -EINVAL;
6412
9a774c78
AO		 6413 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6414 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6415 return -EINVAL;
6416
9a774c78
AO		 6417 params.n_counter_offsets_beacon = len / sizeof(u16);
6418 if (rdev->wiphy.max_num_csa_counters &&
6419 (params.n_counter_offsets_beacon >
6420 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6421 return -EINVAL;
6422
9a774c78
AO		 6423 params.counter_offsets_beacon =
6424 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6425
6426 /* sanity checks - counters should fit and be the same */
6427 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6428 u16 offset = params.counter_offsets_beacon[i];
6429
6430 if (offset >= params.beacon_csa.tail_len)
6431 return -EINVAL;
6432
6433 if (params.beacon_csa.tail[offset] != params.count)
6434 return -EINVAL;
6435 }
6436
16ef1fe2 6437 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6438 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6439 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6440 return -EINVAL;
6441
9a774c78
AO		 6442 params.n_counter_offsets_presp = len / sizeof(u16);
6443 if (rdev->wiphy.max_num_csa_counters &&
6444 (params.n_counter_offsets_beacon >
6445 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6446 return -EINVAL;
9a774c78
AO		 6447
6448 params.counter_offsets_presp =
6449 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6450
6451 /* sanity checks - counters should fit and be the same */
6452 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6453 u16 offset = params.counter_offsets_presp[i];
6454
6455 if (offset >= params.beacon_csa.probe_resp_len)
6456 return -EINVAL;
6457
6458 if (params.beacon_csa.probe_resp[offset] !=
6459 params.count)
6460 return -EINVAL;
6461 }
16ef1fe2
SW		 6462 }
6463
ee4bc9e7 6464skip_beacons:
16ef1fe2
SW		 6465 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6466 if (err)
6467 return err;
6468
174e0cd2
IP		 6469 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6470 wdev->iftype))
16ef1fe2
SW		 6471 return -EINVAL;
6472
2beb6dab
LC		 6473 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6474 &params.chandef,
6475 wdev->iftype);
6476 if (err < 0)
6477 return err;
6478
dcc6c2f5 6479 if (err > 0)
2beb6dab 6480 params.radar_required = true;
16ef1fe2 6481
16ef1fe2
SW		 6482 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6483 params.block_tx = true;
6484
c56589ed
SW		 6485 wdev_lock(wdev);
6486 err = rdev_channel_switch(rdev, dev, &params);
6487 wdev_unlock(wdev);
6488
6489 return err;
16ef1fe2
SW		 6490}
6491
9720bb3a
JB		 6492static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6493 u32 seq, int flags,
2a519311 6494 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6495 struct wireless_dev *wdev,
6496 struct cfg80211_internal_bss *intbss)
2a519311 6497{
48ab905d 6498 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6499 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6500 void *hdr;
6501 struct nlattr *bss;
48ab905d
JB		 6502
6503 ASSERT_WDEV_LOCK(wdev);
2a519311 6504
15e47304 6505 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6506 NL80211_CMD_NEW_SCAN_RESULTS);
6507 if (!hdr)
6508 return -1;
6509
9720bb3a
JB		 6510 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6511
97990a06
JB		 6512 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6513 goto nla_put_failure;
6514 if (wdev->netdev &&
9360ffd1
DM		 6515 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6516 goto nla_put_failure;
97990a06
JB		 6517 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6518 goto nla_put_failure;
2a519311
JB		 6519
6520 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6521 if (!bss)
6522 goto nla_put_failure;
9360ffd1 6523 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6524 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6525 goto nla_put_failure;
9caf0364
JB		 6526
6527 rcu_read_lock();
0e227084
JB		 6528 /* indicate whether we have probe response data or not */
6529 if (rcu_access_pointer(res->proberesp_ies) &&
6530 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6531 goto fail_unlock_rcu;
6532
6533 /* this pointer prefers to be pointed to probe response data
6534 * but is always valid
6535 */
9caf0364 6536 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6537 if (ies) {
6538 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6539 goto fail_unlock_rcu;
8cef2c9d
JB		 6540 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6541 ies->len, ies->data))
6542 goto fail_unlock_rcu;
9caf0364 6543 }
0e227084
JB		 6544
6545 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6546 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6547 if (ies && ies->from_beacon) {
6548 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6549 goto fail_unlock_rcu;
6550 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6551 ies->len, ies->data))
6552 goto fail_unlock_rcu;
9caf0364
JB		 6553 }
6554 rcu_read_unlock();
6555
9360ffd1
DM		 6556 if (res->beacon_interval &&
6557 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6558 goto nla_put_failure;
6559 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6560 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6561 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6562 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6563 jiffies_to_msecs(jiffies - intbss->ts)))
6564 goto nla_put_failure;
2a519311 6565
77965c97 6566 switch (rdev->wiphy.signal_type) {
2a519311 6567 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6568 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6569 goto nla_put_failure;
2a519311
JB		 6570 break;
6571 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6572 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6573 goto nla_put_failure;
2a519311
JB		 6574 break;
6575 default:
6576 break;
6577 }
6578
48ab905d 6579 switch (wdev->iftype) {
074ac8df 6580 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6581 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6582 if (intbss == wdev->current_bss &&
6583 nla_put_u32(msg, NL80211_BSS_STATUS,
6584 NL80211_BSS_STATUS_ASSOCIATED))
6585 goto nla_put_failure;
48ab905d
JB		 6586 break;
6587 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6588 if (intbss == wdev->current_bss &&
6589 nla_put_u32(msg, NL80211_BSS_STATUS,
6590 NL80211_BSS_STATUS_IBSS_JOINED))
6591 goto nla_put_failure;
48ab905d
JB		 6592 break;
6593 default:
6594 break;
6595 }
6596
2a519311
JB		 6597 nla_nest_end(msg, bss);
6598
6599 return genlmsg_end(msg, hdr);
6600
8cef2c9d
JB		 6601 fail_unlock_rcu:
6602 rcu_read_unlock();
2a519311
JB		 6603 nla_put_failure:
6604 genlmsg_cancel(msg, hdr);
6605 return -EMSGSIZE;
6606}
6607
97990a06 6608static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6609{
48ab905d 6610 struct cfg80211_registered_device *rdev;
2a519311 6611 struct cfg80211_internal_bss *scan;
48ab905d 6612 struct wireless_dev *wdev;
97990a06 6613 int start = cb->args[2], idx = 0;
2a519311
JB		 6614 int err;
6615
97990a06 6616 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6617 if (err)
6618 return err;
2a519311 6619
48ab905d
JB		 6620 wdev_lock(wdev);
6621 spin_lock_bh(&rdev->bss_lock);
6622 cfg80211_bss_expire(rdev);
6623
9720bb3a
JB		 6624 cb->seq = rdev->bss_generation;
6625
48ab905d 6626 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6627 if (++idx <= start)
6628 continue;
9720bb3a 6629 if (nl80211_send_bss(skb, cb,
2a519311 6630 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6631 rdev, wdev, scan) < 0) {
2a519311 6632 idx--;
67748893 6633 break;
2a519311
JB		 6634 }
6635 }
6636
48ab905d
JB		 6637 spin_unlock_bh(&rdev->bss_lock);
6638 wdev_unlock(wdev);
2a519311 6639
97990a06
JB		 6640 cb->args[2] = idx;
6641 nl80211_finish_wdev_dump(rdev);
2a519311 6642
67748893 6643 return skb->len;
2a519311
JB		 6644}
6645
15e47304 6646static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6647 int flags, struct net_device *dev,
6648 bool allow_radio_stats,
6649 struct survey_info *survey)
61fa713c
HS		 6650{
6651 void *hdr;
6652 struct nlattr *infoattr;
6653
11f78ac3
JB		 6654 /* skip radio stats if userspace didn't request them */
6655 if (!survey->channel && !allow_radio_stats)
6656 return 0;
6657
15e47304 6658 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6659 NL80211_CMD_NEW_SURVEY_RESULTS);
6660 if (!hdr)
6661 return -ENOMEM;
6662
9360ffd1
DM		 6663 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6664 goto nla_put_failure;
61fa713c
HS		 6665
6666 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6667 if (!infoattr)
6668 goto nla_put_failure;
6669
11f78ac3
JB		 6670 if (survey->channel &&
6671 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6672 survey->channel->center_freq))
6673 goto nla_put_failure;
6674
6675 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6676 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6677 goto nla_put_failure;
6678 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6679 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6680 goto nla_put_failure;
4ed20beb
JB		 6681 if ((survey->filled & SURVEY_INFO_TIME) &&
6682 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6683 survey->time))
9360ffd1 6684 goto nla_put_failure;
4ed20beb
JB		 6685 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6686 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6687 survey->time_busy))
9360ffd1 6688 goto nla_put_failure;
4ed20beb
JB		 6689 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6690 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6691 survey->time_ext_busy))
9360ffd1 6692 goto nla_put_failure;
4ed20beb
JB		 6693 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6694 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6695 survey->time_rx))
9360ffd1 6696 goto nla_put_failure;
4ed20beb
JB		 6697 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6698 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6699 survey->time_tx))
9360ffd1 6700 goto nla_put_failure;
052536ab
JB		 6701 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6702 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6703 survey->time_scan))
6704 goto nla_put_failure;
61fa713c
HS		 6705
6706 nla_nest_end(msg, infoattr);
6707
6708 return genlmsg_end(msg, hdr);
6709
6710 nla_put_failure:
6711 genlmsg_cancel(msg, hdr);
6712 return -EMSGSIZE;
6713}
6714
11f78ac3 6715static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6716{
6717 struct survey_info survey;
1b8ec87a 6718 struct cfg80211_registered_device *rdev;
97990a06
JB		 6719 struct wireless_dev *wdev;
6720 int survey_idx = cb->args[2];
61fa713c 6721 int res;
11f78ac3 6722 bool radio_stats;
61fa713c 6723
1b8ec87a 6724 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6725 if (res)
6726 return res;
61fa713c 6727
11f78ac3
JB		 6728 /* prepare_wdev_dump parsed the attributes */
6729 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6730
97990a06
JB		 6731 if (!wdev->netdev) {
6732 res = -EINVAL;
6733 goto out_err;
6734 }
6735
1b8ec87a 6736 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6737 res = -EOPNOTSUPP;
6738 goto out_err;
6739 }
6740
6741 while (1) {
1b8ec87a 6742 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6743 if (res == -ENOENT)
6744 break;
6745 if (res)
6746 goto out_err;
6747
11f78ac3
JB		 6748 /* don't send disabled channels, but do send non-channel data */
6749 if (survey.channel &&
6750 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6751 survey_idx++;
6752 continue;
6753 }
6754
61fa713c 6755 if (nl80211_send_survey(skb,
15e47304 6756 NETLINK_CB(cb->skb).portid,
61fa713c 6757 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6758 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6759 goto out;
6760 survey_idx++;
6761 }
6762
6763 out:
97990a06 6764 cb->args[2] = survey_idx;
61fa713c
HS		 6765 res = skb->len;
6766 out_err:
1b8ec87a 6767 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6768 return res;
6769}
6770
b23aa676
SO		 6771static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6772{
6773 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6774 NL80211_WPA_VERSION_2));
6775}
6776
636a5d36
JM		 6777static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6778{
4c476991
JB		 6779 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6780 struct net_device *dev = info->user_ptr[1];
19957bb3 6781 struct ieee80211_channel *chan;
e39e5b5e
JM		 6782 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6783 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6784 enum nl80211_auth_type auth_type;
fffd0934 6785 struct key_parse key;
d5cdfacb 6786 bool local_state_change;
636a5d36 6787
f4a11bb0
JB		 6788 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6789 return -EINVAL;
6790
6791 if (!info->attrs[NL80211_ATTR_MAC])
6792 return -EINVAL;
6793
1778092e
JM		 6794 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6795 return -EINVAL;
6796
19957bb3
JB		 6797 if (!info->attrs[NL80211_ATTR_SSID])
6798 return -EINVAL;
6799
6800 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6801 return -EINVAL;
6802
fffd0934
JB		 6803 err = nl80211_parse_key(info, &key);
6804 if (err)
6805 return err;
6806
6807 if (key.idx >= 0) {
e31b8213
JB		 6808 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6809 return -EINVAL;
fffd0934
JB		 6810 if (!key.p.key || !key.p.key_len)
6811 return -EINVAL;
6812 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6813 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6814 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6815 key.p.key_len != WLAN_KEY_LEN_WEP104))
6816 return -EINVAL;
6817 if (key.idx > 4)
6818 return -EINVAL;
6819 } else {
6820 key.p.key_len = 0;
6821 key.p.key = NULL;
6822 }
6823
afea0b7a
JB		 6824 if (key.idx >= 0) {
6825 int i;
6826 bool ok = false;
6827 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6828 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6829 ok = true;
6830 break;
6831 }
6832 }
4c476991
JB		 6833 if (!ok)
6834 return -EINVAL;
afea0b7a
JB		 6835 }
6836
4c476991
JB		 6837 if (!rdev->ops->auth)
6838 return -EOPNOTSUPP;
636a5d36 6839
074ac8df 6840 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6841 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6842 return -EOPNOTSUPP;
eec60b03 6843
19957bb3 6844 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6845 chan = nl80211_get_valid_chan(&rdev->wiphy,
6846 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6847 if (!chan)
4c476991 6848 return -EINVAL;
636a5d36 6849
19957bb3
JB		 6850 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6851 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6852
6853 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6854 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6855 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6856 }
6857
19957bb3 6858 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6859 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6860 return -EINVAL;
636a5d36 6861
e39e5b5e
JM		 6862 if (auth_type == NL80211_AUTHTYPE_SAE &&
6863 !info->attrs[NL80211_ATTR_SAE_DATA])
6864 return -EINVAL;
6865
6866 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6867 if (auth_type != NL80211_AUTHTYPE_SAE)
6868 return -EINVAL;
6869 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6870 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6871 /* need to include at least Auth Transaction and Status Code */
6872 if (sae_data_len < 4)
6873 return -EINVAL;
6874 }
6875
d5cdfacb
JM		 6876 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6877
95de817b
JB		 6878 /*
6879 * Since we no longer track auth state, ignore
6880 * requests to only change local state.
6881 */
6882 if (local_state_change)
6883 return 0;
6884
91bf9b26
JB		 6885 wdev_lock(dev->ieee80211_ptr);
6886 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6887 ssid, ssid_len, ie, ie_len,
6888 key.p.key, key.p.key_len, key.idx,
6889 sae_data, sae_data_len);
6890 wdev_unlock(dev->ieee80211_ptr);
6891 return err;
636a5d36
JM		 6892}
6893
c0692b8f
JB		 6894static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6895 struct genl_info *info,
3dc27d25
JB		 6896 struct cfg80211_crypto_settings *settings,
6897 int cipher_limit)
b23aa676 6898{
c0b2bbd8
JB		 6899 memset(settings, 0, sizeof(*settings));
6900
b23aa676
SO		 6901 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6902
c0692b8f
JB		 6903 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6904 u16 proto;
6905 proto = nla_get_u16(
6906 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6907 settings->control_port_ethertype = cpu_to_be16(proto);
6908 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6909 proto != ETH_P_PAE)
6910 return -EINVAL;
6911 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6912 settings->control_port_no_encrypt = true;
6913 } else
6914 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6915
b23aa676
SO		 6916 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6917 void *data;
6918 int len, i;
6919
6920 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6921 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6922 settings->n_ciphers_pairwise = len / sizeof(u32);
6923
6924 if (len % sizeof(u32))
6925 return -EINVAL;
6926
3dc27d25 6927 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6928 return -EINVAL;
6929
6930 memcpy(settings->ciphers_pairwise, data, len);
6931
6932 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6933 if (!cfg80211_supported_cipher_suite(
6934 &rdev->wiphy,
b23aa676
SO		 6935 settings->ciphers_pairwise[i]))
6936 return -EINVAL;
6937 }
6938
6939 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6940 settings->cipher_group =
6941 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6942 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6943 settings->cipher_group))
b23aa676
SO		 6944 return -EINVAL;
6945 }
6946
6947 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6948 settings->wpa_versions =
6949 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6950 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6951 return -EINVAL;
6952 }
6953
6954 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6955 void *data;
6d30240e 6956 int len;
b23aa676
SO		 6957
6958 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6959 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6960 settings->n_akm_suites = len / sizeof(u32);
6961
6962 if (len % sizeof(u32))
6963 return -EINVAL;
6964
1b9ca027
JM		 6965 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6966 return -EINVAL;
6967
b23aa676 6968 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6969 }
6970
6971 return 0;
6972}
6973
636a5d36
JM		 6974static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6975{
4c476991
JB		 6976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6977 struct net_device *dev = info->user_ptr[1];
f444de05 6978 struct ieee80211_channel *chan;
f62fab73
JB		 6979 struct cfg80211_assoc_request req = {};
6980 const u8 *bssid, *ssid;
6981 int err, ssid_len = 0;
636a5d36 6982
f4a11bb0
JB		 6983 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6984 return -EINVAL;
6985
6986 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6987 !info->attrs[NL80211_ATTR_SSID] ||
6988 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6989 return -EINVAL;
6990
4c476991
JB		 6991 if (!rdev->ops->assoc)
6992 return -EOPNOTSUPP;
636a5d36 6993
074ac8df 6994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6996 return -EOPNOTSUPP;
eec60b03 6997
19957bb3 6998 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6999
664834de
JM		 7000 chan = nl80211_get_valid_chan(&rdev->wiphy,
7001 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7002 if (!chan)
4c476991 7003 return -EINVAL;
636a5d36 7004
19957bb3
JB		 7005 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7006 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7007
7008 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7009 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7010 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7011 }
7012
dc6382ce 7013 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7014 enum nl80211_mfp mfp =
dc6382ce 7015 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7016 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7017 req.use_mfp = true;
4c476991
JB		 7018 else if (mfp != NL80211_MFP_NO)
7019 return -EINVAL;
dc6382ce
JM		 7020 }
7021
3e5d7649 7022 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7023 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7024
7e7c8926 7025 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7026 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7027
7028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7029 memcpy(&req.ht_capa_mask,
7030 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7031 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7032
7033 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7034 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7035 return -EINVAL;
f62fab73
JB		 7036 memcpy(&req.ht_capa,
7037 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7038 sizeof(req.ht_capa));
7e7c8926
BG		 7039 }
7040
ee2aca34 7041 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7042 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7043
7044 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7045 memcpy(&req.vht_capa_mask,
7046 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7047 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7048
7049 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7050 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7051 return -EINVAL;
f62fab73
JB		 7052 memcpy(&req.vht_capa,
7053 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7054 sizeof(req.vht_capa));
ee2aca34
JB		 7055 }
7056
bab5ab7d
AK		 7057 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7058 if (!(rdev->wiphy.features &
7059 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7060 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7061 return -EINVAL;
7062 req.flags |= ASSOC_REQ_USE_RRM;
7063 }
7064
f62fab73 7065 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7066 if (!err) {
7067 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7068 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7069 ssid, ssid_len, &req);
91bf9b26
JB		 7070 wdev_unlock(dev->ieee80211_ptr);
7071 }
636a5d36 7072
636a5d36
JM		 7073 return err;
7074}
7075
7076static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7077{
4c476991
JB		 7078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7079 struct net_device *dev = info->user_ptr[1];
19957bb3 7080 const u8 *ie = NULL, *bssid;
91bf9b26 7081 int ie_len = 0, err;
19957bb3 7082 u16 reason_code;
d5cdfacb 7083 bool local_state_change;
636a5d36 7084
f4a11bb0
JB		 7085 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7086 return -EINVAL;
7087
7088 if (!info->attrs[NL80211_ATTR_MAC])
7089 return -EINVAL;
7090
7091 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7092 return -EINVAL;
7093
4c476991
JB		 7094 if (!rdev->ops->deauth)
7095 return -EOPNOTSUPP;
636a5d36 7096
074ac8df 7097 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7098 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7099 return -EOPNOTSUPP;
eec60b03 7100
19957bb3 7101 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7102
19957bb3
JB		 7103 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7104 if (reason_code == 0) {
f4a11bb0 7105 /* Reason Code 0 is reserved */
4c476991 7106 return -EINVAL;
255e737e 7107 }
636a5d36
JM		 7108
7109 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7110 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7111 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7112 }
7113
d5cdfacb
JM		 7114 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7115
91bf9b26
JB		 7116 wdev_lock(dev->ieee80211_ptr);
7117 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7118 local_state_change);
7119 wdev_unlock(dev->ieee80211_ptr);
7120 return err;
636a5d36
JM		 7121}
7122
7123static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7124{
4c476991
JB		 7125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7126 struct net_device *dev = info->user_ptr[1];
19957bb3 7127 const u8 *ie = NULL, *bssid;
91bf9b26 7128 int ie_len = 0, err;
19957bb3 7129 u16 reason_code;
d5cdfacb 7130 bool local_state_change;
636a5d36 7131
f4a11bb0
JB		 7132 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7133 return -EINVAL;
7134
7135 if (!info->attrs[NL80211_ATTR_MAC])
7136 return -EINVAL;
7137
7138 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7139 return -EINVAL;
7140
4c476991
JB		 7141 if (!rdev->ops->disassoc)
7142 return -EOPNOTSUPP;
636a5d36 7143
074ac8df 7144 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7145 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7146 return -EOPNOTSUPP;
eec60b03 7147
19957bb3 7148 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7149
19957bb3
JB		 7150 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7151 if (reason_code == 0) {
f4a11bb0 7152 /* Reason Code 0 is reserved */
4c476991 7153 return -EINVAL;
255e737e 7154 }
636a5d36
JM		 7155
7156 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7157 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7158 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7159 }
7160
d5cdfacb
JM		 7161 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7162
91bf9b26
JB		 7163 wdev_lock(dev->ieee80211_ptr);
7164 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7165 local_state_change);
7166 wdev_unlock(dev->ieee80211_ptr);
7167 return err;
636a5d36
JM		 7168}
7169
dd5b4cc7
FF		 7170static bool
7171nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7172 int mcast_rate[IEEE80211_NUM_BANDS],
7173 int rateval)
7174{
7175 struct wiphy *wiphy = &rdev->wiphy;
7176 bool found = false;
7177 int band, i;
7178
7179 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7180 struct ieee80211_supported_band *sband;
7181
7182 sband = wiphy->bands[band];
7183 if (!sband)
7184 continue;
7185
7186 for (i = 0; i < sband->n_bitrates; i++) {
7187 if (sband->bitrates[i].bitrate == rateval) {
7188 mcast_rate[band] = i + 1;
7189 found = true;
7190 break;
7191 }
7192 }
7193 }
7194
7195 return found;
7196}
7197
04a773ad
JB		 7198static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7199{
4c476991
JB		 7200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7201 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7202 struct cfg80211_ibss_params ibss;
7203 struct wiphy *wiphy;
fffd0934 7204 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7205 int err;
7206
8e30bc55
JB		 7207 memset(&ibss, 0, sizeof(ibss));
7208
04a773ad
JB		 7209 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7210 return -EINVAL;
7211
683b6d3b 7212 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7213 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7214 return -EINVAL;
7215
8e30bc55
JB		 7216 ibss.beacon_interval = 100;
7217
7218 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7219 ibss.beacon_interval =
7220 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7221 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7222 return -EINVAL;
7223 }
7224
4c476991
JB		 7225 if (!rdev->ops->join_ibss)
7226 return -EOPNOTSUPP;
04a773ad 7227
4c476991
JB		 7228 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7229 return -EOPNOTSUPP;
04a773ad 7230
79c97e97 7231 wiphy = &rdev->wiphy;
04a773ad 7232
39193498 7233 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7234 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7235
7236 if (!is_valid_ether_addr(ibss.bssid))
7237 return -EINVAL;
7238 }
04a773ad
JB		 7239 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7240 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7241
7242 if (info->attrs[NL80211_ATTR_IE]) {
7243 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7244 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7245 }
7246
683b6d3b
JB		 7247 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7248 if (err)
7249 return err;
04a773ad 7250
174e0cd2
IP		 7251 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7252 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7253 return -EINVAL;
7254
2f301ab2 7255 switch (ibss.chandef.width) {
bf372645
SW		 7256 case NL80211_CHAN_WIDTH_5:
7257 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7258 case NL80211_CHAN_WIDTH_20_NOHT:
7259 break;
7260 case NL80211_CHAN_WIDTH_20:
7261 case NL80211_CHAN_WIDTH_40:
7262 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7263 break;
7264 default:
c04d6150 7265 return -EINVAL;
2f301ab2 7266 }
db9c64cf 7267
04a773ad 7268 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7269 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7270
fbd2c8dc
TP		 7271 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7272 u8 *rates =
7273 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7274 int n_rates =
7275 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7276 struct ieee80211_supported_band *sband =
683b6d3b 7277 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7278
34850ab2
JB		 7279 err = ieee80211_get_ratemask(sband, rates, n_rates,
7280 &ibss.basic_rates);
7281 if (err)
7282 return err;
fbd2c8dc 7283 }
dd5b4cc7 7284
803768f5
SW		 7285 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7286 memcpy(&ibss.ht_capa_mask,
7287 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7288 sizeof(ibss.ht_capa_mask));
7289
7290 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7291 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7292 return -EINVAL;
7293 memcpy(&ibss.ht_capa,
7294 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7295 sizeof(ibss.ht_capa));
7296 }
7297
dd5b4cc7
FF		 7298 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7299 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7300 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7301 return -EINVAL;
fbd2c8dc 7302
4c476991 7303 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7304 bool no_ht = false;
7305
4c476991 7306 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7307 info->attrs[NL80211_ATTR_KEYS],
7308 &no_ht);
4c476991
JB		 7309 if (IS_ERR(connkeys))
7310 return PTR_ERR(connkeys);
de7044ee 7311
3d9d1d66
JB		 7312 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7313 no_ht) {
de7044ee
SM		 7314 kfree(connkeys);
7315 return -EINVAL;
7316 }
4c476991 7317 }
04a773ad 7318
267335d6
AQ		 7319 ibss.control_port =
7320 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7321
5336fa88
SW		 7322 ibss.userspace_handles_dfs =
7323 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7324
4c476991 7325 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7326 if (err)
b47f610b 7327 kzfree(connkeys);
04a773ad
JB		 7328 return err;
7329}
7330
7331static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7332{
4c476991
JB		 7333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7334 struct net_device *dev = info->user_ptr[1];
04a773ad 7335
4c476991
JB		 7336 if (!rdev->ops->leave_ibss)
7337 return -EOPNOTSUPP;
04a773ad 7338
4c476991
JB		 7339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7340 return -EOPNOTSUPP;
04a773ad 7341
4c476991 7342 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7343}
7344
f4e583c8
AQ		 7345static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7346{
7347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7348 struct net_device *dev = info->user_ptr[1];
7349 int mcast_rate[IEEE80211_NUM_BANDS];
7350 u32 nla_rate;
7351 int err;
7352
7353 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7354 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7355 return -EOPNOTSUPP;
7356
7357 if (!rdev->ops->set_mcast_rate)
7358 return -EOPNOTSUPP;
7359
7360 memset(mcast_rate, 0, sizeof(mcast_rate));
7361
7362 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7363 return -EINVAL;
7364
7365 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7366 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7367 return -EINVAL;
7368
7369 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7370
7371 return err;
7372}
7373
ad7e718c
JB		 7374static struct sk_buff *
7375__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7376 int approxlen, u32 portid, u32 seq,
7377 enum nl80211_commands cmd,
567ffc35
JB		 7378 enum nl80211_attrs attr,
7379 const struct nl80211_vendor_cmd_info *info,
7380 gfp_t gfp)
ad7e718c
JB		 7381{
7382 struct sk_buff *skb;
7383 void *hdr;
7384 struct nlattr *data;
7385
7386 skb = nlmsg_new(approxlen + 100, gfp);
7387 if (!skb)
7388 return NULL;
7389
7390 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7391 if (!hdr) {
7392 kfree_skb(skb);
7393 return NULL;
7394 }
7395
7396 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7397 goto nla_put_failure;
567ffc35
JB		 7398
7399 if (info) {
7400 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7401 info->vendor_id))
7402 goto nla_put_failure;
7403 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7404 info->subcmd))
7405 goto nla_put_failure;
7406 }
7407
ad7e718c
JB		 7408 data = nla_nest_start(skb, attr);
7409
7410 ((void **)skb->cb)[0] = rdev;
7411 ((void **)skb->cb)[1] = hdr;
7412 ((void **)skb->cb)[2] = data;
7413
7414 return skb;
7415
7416 nla_put_failure:
7417 kfree_skb(skb);
7418 return NULL;
7419}
f4e583c8 7420
e03ad6ea
JB		 7421struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7422 enum nl80211_commands cmd,
7423 enum nl80211_attrs attr,
7424 int vendor_event_idx,
7425 int approxlen, gfp_t gfp)
7426{
f26cbf40 7427 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7428 const struct nl80211_vendor_cmd_info *info;
7429
7430 switch (cmd) {
7431 case NL80211_CMD_TESTMODE:
7432 if (WARN_ON(vendor_event_idx != -1))
7433 return NULL;
7434 info = NULL;
7435 break;
7436 case NL80211_CMD_VENDOR:
7437 if (WARN_ON(vendor_event_idx < 0 ||
7438 vendor_event_idx >= wiphy->n_vendor_events))
7439 return NULL;
7440 info = &wiphy->vendor_events[vendor_event_idx];
7441 break;
7442 default:
7443 WARN_ON(1);
7444 return NULL;
7445 }
7446
7447 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7448 cmd, attr, info, gfp);
7449}
7450EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7451
7452void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7453{
7454 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7455 void *hdr = ((void **)skb->cb)[1];
7456 struct nlattr *data = ((void **)skb->cb)[2];
7457 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7458
bd8c78e7
JB		 7459 /* clear CB data for netlink core to own from now on */
7460 memset(skb->cb, 0, sizeof(skb->cb));
7461
e03ad6ea
JB		 7462 nla_nest_end(skb, data);
7463 genlmsg_end(skb, hdr);
7464
7465 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7466 mcgrp = NL80211_MCGRP_VENDOR;
7467
7468 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7469 mcgrp, gfp);
7470}
7471EXPORT_SYMBOL(__cfg80211_send_event_skb);
7472
aff89a9b 7473#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7474static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7475{
4c476991 7476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7477 struct wireless_dev *wdev =
7478 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7479 int err;
7480
fc73f11f
DS		 7481 if (!rdev->ops->testmode_cmd)
7482 return -EOPNOTSUPP;
7483
7484 if (IS_ERR(wdev)) {
7485 err = PTR_ERR(wdev);
7486 if (err != -EINVAL)
7487 return err;
7488 wdev = NULL;
7489 } else if (wdev->wiphy != &rdev->wiphy) {
7490 return -EINVAL;
7491 }
7492
aff89a9b
JB		 7493 if (!info->attrs[NL80211_ATTR_TESTDATA])
7494 return -EINVAL;
7495
ad7e718c 7496 rdev->cur_cmd_info = info;
fc73f11f 7497 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7498 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7499 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7500 rdev->cur_cmd_info = NULL;
aff89a9b 7501
aff89a9b
JB		 7502 return err;
7503}
7504
71063f0e
WYG		 7505static int nl80211_testmode_dump(struct sk_buff *skb,
7506 struct netlink_callback *cb)
7507{
00918d33 7508 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7509 int err;
7510 long phy_idx;
7511 void *data = NULL;
7512 int data_len = 0;
7513
5fe231e8
JB		 7514 rtnl_lock();
7515
71063f0e
WYG		 7516 if (cb->args[0]) {
7517 /*
7518 * 0 is a valid index, but not valid for args[0],
7519 * so we need to offset by 1.
7520 */
7521 phy_idx = cb->args[0] - 1;
7522 } else {
7523 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7524 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7525 nl80211_policy);
7526 if (err)
5fe231e8 7527 goto out_err;
00918d33 7528
2bd7e35d
JB		 7529 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7530 nl80211_fam.attrbuf);
7531 if (IS_ERR(rdev)) {
5fe231e8
JB		 7532 err = PTR_ERR(rdev);
7533 goto out_err;
00918d33 7534 }
2bd7e35d
JB		 7535 phy_idx = rdev->wiphy_idx;
7536 rdev = NULL;
2bd7e35d 7537
71063f0e
WYG		 7538 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7539 cb->args[1] =
7540 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7541 }
7542
7543 if (cb->args[1]) {
7544 data = nla_data((void *)cb->args[1]);
7545 data_len = nla_len((void *)cb->args[1]);
7546 }
7547
00918d33
JB		 7548 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7549 if (!rdev) {
5fe231e8
JB		 7550 err = -ENOENT;
7551 goto out_err;
71063f0e 7552 }
71063f0e 7553
00918d33 7554 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7555 err = -EOPNOTSUPP;
7556 goto out_err;
7557 }
7558
7559 while (1) {
15e47304 7560 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7561 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7562 NL80211_CMD_TESTMODE);
7563 struct nlattr *tmdata;
7564
cb35fba3
DC		 7565 if (!hdr)
7566 break;
7567
9360ffd1 7568 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7569 genlmsg_cancel(skb, hdr);
7570 break;
7571 }
7572
7573 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7574 if (!tmdata) {
7575 genlmsg_cancel(skb, hdr);
7576 break;
7577 }
e35e4d28 7578 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7579 nla_nest_end(skb, tmdata);
7580
7581 if (err == -ENOBUFS || err == -ENOENT) {
7582 genlmsg_cancel(skb, hdr);
7583 break;
7584 } else if (err) {
7585 genlmsg_cancel(skb, hdr);
7586 goto out_err;
7587 }
7588
7589 genlmsg_end(skb, hdr);
7590 }
7591
7592 err = skb->len;
7593 /* see above */
7594 cb->args[0] = phy_idx + 1;
7595 out_err:
5fe231e8 7596 rtnl_unlock();
71063f0e
WYG		 7597 return err;
7598}
aff89a9b
JB		 7599#endif
7600
b23aa676
SO		 7601static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7602{
4c476991
JB		 7603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7604 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7605 struct cfg80211_connect_params connect;
7606 struct wiphy *wiphy;
fffd0934 7607 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7608 int err;
7609
7610 memset(&connect, 0, sizeof(connect));
7611
7612 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7613 return -EINVAL;
7614
7615 if (!info->attrs[NL80211_ATTR_SSID] ||
7616 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7617 return -EINVAL;
7618
7619 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7620 connect.auth_type =
7621 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7622 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7623 NL80211_CMD_CONNECT))
b23aa676
SO		 7624 return -EINVAL;
7625 } else
7626 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7627
7628 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7629
c0692b8f 7630 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7631 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7632 if (err)
7633 return err;
b23aa676 7634
074ac8df 7635 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7636 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7637 return -EOPNOTSUPP;
b23aa676 7638
79c97e97 7639 wiphy = &rdev->wiphy;
b23aa676 7640
4486ea98
BS		 7641 connect.bg_scan_period = -1;
7642 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7643 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7644 connect.bg_scan_period =
7645 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7646 }
7647
b23aa676
SO		 7648 if (info->attrs[NL80211_ATTR_MAC])
7649 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7650 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7651 connect.bssid_hint =
7652 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7653 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7654 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7655
7656 if (info->attrs[NL80211_ATTR_IE]) {
7657 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7658 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7659 }
7660
cee00a95
JM		 7661 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7662 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7663 if (connect.mfp != NL80211_MFP_REQUIRED &&
7664 connect.mfp != NL80211_MFP_NO)
7665 return -EINVAL;
7666 } else {
7667 connect.mfp = NL80211_MFP_NO;
7668 }
7669
b23aa676 7670 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7671 connect.channel = nl80211_get_valid_chan(
7672 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7673 if (!connect.channel)
1df4a510
JM		 7674 return -EINVAL;
7675 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7676 connect.channel_hint = nl80211_get_valid_chan(
7677 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7678 if (!connect.channel_hint)
4c476991 7679 return -EINVAL;
b23aa676
SO		 7680 }
7681
fffd0934
JB		 7682 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7683 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7684 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7685 if (IS_ERR(connkeys))
7686 return PTR_ERR(connkeys);
fffd0934
JB		 7687 }
7688
7e7c8926
BG		 7689 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7690 connect.flags |= ASSOC_REQ_DISABLE_HT;
7691
7692 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7693 memcpy(&connect.ht_capa_mask,
7694 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7695 sizeof(connect.ht_capa_mask));
7696
7697 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7698 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7699 kzfree(connkeys);
7e7c8926 7700 return -EINVAL;
b4e4f47e 7701 }
7e7c8926
BG		 7702 memcpy(&connect.ht_capa,
7703 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7704 sizeof(connect.ht_capa));
7705 }
7706
ee2aca34
JB		 7707 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7708 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7709
7710 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7711 memcpy(&connect.vht_capa_mask,
7712 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7713 sizeof(connect.vht_capa_mask));
7714
7715 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7716 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7717 kzfree(connkeys);
ee2aca34
JB		 7718 return -EINVAL;
7719 }
7720 memcpy(&connect.vht_capa,
7721 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7722 sizeof(connect.vht_capa));
7723 }
7724
bab5ab7d
AK		 7725 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7726 if (!(rdev->wiphy.features &
7727 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7728 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7729 return -EINVAL;
7730 connect.flags |= ASSOC_REQ_USE_RRM;
7731 }
7732
83739b03
JB		 7733 wdev_lock(dev->ieee80211_ptr);
7734 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7735 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7736 if (err)
b47f610b 7737 kzfree(connkeys);
b23aa676
SO		 7738 return err;
7739}
7740
7741static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7742{
4c476991
JB		 7743 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7744 struct net_device *dev = info->user_ptr[1];
b23aa676 7745 u16 reason;
83739b03 7746 int ret;
b23aa676
SO		 7747
7748 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7749 reason = WLAN_REASON_DEAUTH_LEAVING;
7750 else
7751 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7752
7753 if (reason == 0)
7754 return -EINVAL;
7755
074ac8df 7756 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7757 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7758 return -EOPNOTSUPP;
b23aa676 7759
83739b03
JB		 7760 wdev_lock(dev->ieee80211_ptr);
7761 ret = cfg80211_disconnect(rdev, dev, reason, true);
7762 wdev_unlock(dev->ieee80211_ptr);
7763 return ret;
b23aa676
SO		 7764}
7765
463d0183
JB		 7766static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7767{
4c476991 7768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7769 struct net *net;
7770 int err;
463d0183 7771
4b681c82
VK		 7772 if (info->attrs[NL80211_ATTR_PID]) {
7773 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7774
7775 net = get_net_ns_by_pid(pid);
7776 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7777 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7778
4b681c82
VK		 7779 net = get_net_ns_by_fd(fd);
7780 } else {
7781 return -EINVAL;
7782 }
463d0183 7783
4c476991
JB		 7784 if (IS_ERR(net))
7785 return PTR_ERR(net);
463d0183
JB		 7786
7787 err = 0;
7788
7789 /* check if anything to do */
4c476991
JB		 7790 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7791 err = cfg80211_switch_netns(rdev, net);
463d0183 7792
463d0183 7793 put_net(net);
463d0183
JB		 7794 return err;
7795}
7796
67fbb16b
SO		 7797static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7798{
4c476991 7799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7800 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7801 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7802 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7803 struct cfg80211_pmksa pmksa;
7804
7805 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7806
7807 if (!info->attrs[NL80211_ATTR_MAC])
7808 return -EINVAL;
7809
7810 if (!info->attrs[NL80211_ATTR_PMKID])
7811 return -EINVAL;
7812
67fbb16b
SO		 7813 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7814 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7815
074ac8df 7816 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7817 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7818 return -EOPNOTSUPP;
67fbb16b
SO		 7819
7820 switch (info->genlhdr->cmd) {
7821 case NL80211_CMD_SET_PMKSA:
7822 rdev_ops = rdev->ops->set_pmksa;
7823 break;
7824 case NL80211_CMD_DEL_PMKSA:
7825 rdev_ops = rdev->ops->del_pmksa;
7826 break;
7827 default:
7828 WARN_ON(1);
7829 break;
7830 }
7831
4c476991
JB		 7832 if (!rdev_ops)
7833 return -EOPNOTSUPP;
67fbb16b 7834
4c476991 7835 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7836}
7837
7838static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7839{
4c476991
JB		 7840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7841 struct net_device *dev = info->user_ptr[1];
67fbb16b 7842
074ac8df 7843 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7844 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7845 return -EOPNOTSUPP;
67fbb16b 7846
4c476991
JB		 7847 if (!rdev->ops->flush_pmksa)
7848 return -EOPNOTSUPP;
67fbb16b 7849
e35e4d28 7850 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7851}
7852
109086ce
AN		 7853static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7854{
7855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7856 struct net_device *dev = info->user_ptr[1];
7857 u8 action_code, dialog_token;
df942e7b 7858 u32 peer_capability = 0;
109086ce
AN		 7859 u16 status_code;
7860 u8 *peer;
31fa97c5 7861 bool initiator;
109086ce
AN		 7862
7863 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7864 !rdev->ops->tdls_mgmt)
7865 return -EOPNOTSUPP;
7866
7867 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7868 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7869 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7870 !info->attrs[NL80211_ATTR_IE] ||
7871 !info->attrs[NL80211_ATTR_MAC])
7872 return -EINVAL;
7873
7874 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7875 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7876 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7877 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7878 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7879 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7880 peer_capability =
7881 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7882
e35e4d28 7883 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7884 dialog_token, status_code, peer_capability,
31fa97c5 7885 initiator,
e35e4d28
HG		 7886 nla_data(info->attrs[NL80211_ATTR_IE]),
7887 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7888}
7889
7890static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7891{
7892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7893 struct net_device *dev = info->user_ptr[1];
7894 enum nl80211_tdls_operation operation;
7895 u8 *peer;
7896
7897 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7898 !rdev->ops->tdls_oper)
7899 return -EOPNOTSUPP;
7900
7901 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7902 !info->attrs[NL80211_ATTR_MAC])
7903 return -EINVAL;
7904
7905 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7906 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7907
e35e4d28 7908 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7909}
7910
9588bbd5
JM		 7911static int nl80211_remain_on_channel(struct sk_buff *skb,
7912 struct genl_info *info)
7913{
4c476991 7914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7915 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7916 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7917 struct sk_buff *msg;
7918 void *hdr;
7919 u64 cookie;
683b6d3b 7920 u32 duration;
9588bbd5
JM		 7921 int err;
7922
7923 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7924 !info->attrs[NL80211_ATTR_DURATION])
7925 return -EINVAL;
7926
7927 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7928
ebf348fc
JB		 7929 if (!rdev->ops->remain_on_channel ||
7930 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7931 return -EOPNOTSUPP;
7932
9588bbd5 7933 /*
ebf348fc
JB		 7934 * We should be on that channel for at least a minimum amount of
7935 * time (10ms) but no longer than the driver supports.
9588bbd5 7936 */
ebf348fc 7937 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7938 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7939 return -EINVAL;
7940
683b6d3b
JB		 7941 err = nl80211_parse_chandef(rdev, info, &chandef);
7942 if (err)
7943 return err;
9588bbd5
JM		 7944
7945 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7946 if (!msg)
7947 return -ENOMEM;
9588bbd5 7948
15e47304 7949 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7950 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7951 if (!hdr) {
7952 err = -ENOBUFS;
9588bbd5
JM		 7953 goto free_msg;
7954 }
7955
683b6d3b
JB		 7956 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7957 duration, &cookie);
9588bbd5
JM		 7958
7959 if (err)
7960 goto free_msg;
7961
9360ffd1
DM		 7962 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7963 goto nla_put_failure;
9588bbd5
JM		 7964
7965 genlmsg_end(msg, hdr);
4c476991
JB		 7966
7967 return genlmsg_reply(msg, info);
9588bbd5
JM		 7968
7969 nla_put_failure:
7970 err = -ENOBUFS;
7971 free_msg:
7972 nlmsg_free(msg);
9588bbd5
JM		 7973 return err;
7974}
7975
7976static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7977 struct genl_info *info)
7978{
4c476991 7979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7980 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7981 u64 cookie;
9588bbd5
JM		 7982
7983 if (!info->attrs[NL80211_ATTR_COOKIE])
7984 return -EINVAL;
7985
4c476991
JB		 7986 if (!rdev->ops->cancel_remain_on_channel)
7987 return -EOPNOTSUPP;
9588bbd5 7988
9588bbd5
JM		 7989 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7990
e35e4d28 7991 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7992}
7993
13ae75b1
JM		 7994static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7995 u8 *rates, u8 rates_len)
7996{
7997 u8 i;
7998 u32 mask = 0;
7999
8000 for (i = 0; i < rates_len; i++) {
8001 int rate = (rates[i] & 0x7f) * 5;
8002 int ridx;
8003 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8004 struct ieee80211_rate *srate =
8005 &sband->bitrates[ridx];
8006 if (rate == srate->bitrate) {
8007 mask |= 1 << ridx;
8008 break;
8009 }
8010 }
8011 if (ridx == sband->n_bitrates)
8012 return 0; /* rate not found */
8013 }
8014
8015 return mask;
8016}
8017
24db78c0
SW		 8018static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8019 u8 *rates, u8 rates_len,
8020 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8021{
8022 u8 i;
8023
8024 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8025
8026 for (i = 0; i < rates_len; i++) {
8027 int ridx, rbit;
8028
8029 ridx = rates[i] / 8;
8030 rbit = BIT(rates[i] % 8);
8031
8032 /* check validity */
910570b5 8033 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8034 return false;
8035
8036 /* check availability */
8037 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8038 mcs[ridx] |= rbit;
8039 else
8040 return false;
8041 }
8042
8043 return true;
8044}
8045
204e35a9
JD		 8046static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8047{
8048 u16 mcs_mask = 0;
8049
8050 switch (vht_mcs_map) {
8051 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8052 break;
8053 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8054 mcs_mask = 0x00FF;
8055 break;
8056 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8057 mcs_mask = 0x01FF;
8058 break;
8059 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8060 mcs_mask = 0x03FF;
8061 break;
8062 default:
8063 break;
8064 }
8065
8066 return mcs_mask;
8067}
8068
8069static void vht_build_mcs_mask(u16 vht_mcs_map,
8070 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8071{
8072 u8 nss;
8073
8074 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8075 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8076 vht_mcs_map >>= 2;
8077 }
8078}
8079
8080static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8081 struct nl80211_txrate_vht *txrate,
8082 u16 mcs[NL80211_VHT_NSS_MAX])
8083{
8084 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8085 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8086 u8 i;
8087
8088 if (!sband->vht_cap.vht_supported)
8089 return false;
8090
8091 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8092
8093 /* Build vht_mcs_mask from VHT capabilities */
8094 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8095
8096 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8097 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8098 mcs[i] = txrate->mcs[i];
8099 else
8100 return false;
8101 }
8102
8103 return true;
8104}
8105
b54452b0 8106static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8107 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8108 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8109 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8110 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8111 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8112 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8113};
8114
8115static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8116 struct genl_info *info)
8117{
8118 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8120 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8121 int rem, i;
8122 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8123 struct nlattr *tx_rates;
8124 struct ieee80211_supported_band *sband;
204e35a9 8125 u16 vht_tx_mcs_map;
13ae75b1 8126
4c476991
JB		 8127 if (!rdev->ops->set_bitrate_mask)
8128 return -EOPNOTSUPP;
13ae75b1
JM		 8129
8130 memset(&mask, 0, sizeof(mask));
8131 /* Default to all rates enabled */
8132 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8133 sband = rdev->wiphy.bands[i];
7869303b
JD		 8134
8135 if (!sband)
8136 continue;
8137
8138 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8139 memcpy(mask.control[i].ht_mcs,
7869303b 8140 sband->ht_cap.mcs.rx_mask,
d1e33e65 8141 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8142
8143 if (!sband->vht_cap.vht_supported)
8144 continue;
8145
8146 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8147 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8148 }
8149
b9243ab0
JD		 8150 /* if no rates are given set it back to the defaults */
8151 if (!info->attrs[NL80211_ATTR_TX_RATES])
8152 goto out;
8153
13ae75b1
JM		 8154 /*
8155 * The nested attribute uses enum nl80211_band as the index. This maps
8156 * directly to the enum ieee80211_band values used in cfg80211.
8157 */
24db78c0 8158 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8159 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8160 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8161 int err;
8162
4c476991
JB		 8163 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8164 return -EINVAL;
13ae75b1 8165 sband = rdev->wiphy.bands[band];
4c476991
JB		 8166 if (sband == NULL)
8167 return -EINVAL;
ae811e21
JB		 8168 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8169 nla_len(tx_rates), nl80211_txattr_policy);
8170 if (err)
8171 return err;
13ae75b1
JM		 8172 if (tb[NL80211_TXRATE_LEGACY]) {
8173 mask.control[band].legacy = rateset_to_mask(
8174 sband,
8175 nla_data(tb[NL80211_TXRATE_LEGACY]),
8176 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8177 if ((mask.control[band].legacy == 0) &&
8178 nla_len(tb[NL80211_TXRATE_LEGACY]))
8179 return -EINVAL;
24db78c0 8180 }
d1e33e65 8181 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8182 if (!ht_rateset_to_mask(
8183 sband,
d1e33e65
JD		 8184 nla_data(tb[NL80211_TXRATE_HT]),
8185 nla_len(tb[NL80211_TXRATE_HT]),
8186 mask.control[band].ht_mcs))
24db78c0
SW		 8187 return -EINVAL;
8188 }
204e35a9
JD		 8189 if (tb[NL80211_TXRATE_VHT]) {
8190 if (!vht_set_mcs_mask(
8191 sband,
8192 nla_data(tb[NL80211_TXRATE_VHT]),
8193 mask.control[band].vht_mcs))
8194 return -EINVAL;
8195 }
0b9323f6
JD		 8196 if (tb[NL80211_TXRATE_GI]) {
8197 mask.control[band].gi =
8198 nla_get_u8(tb[NL80211_TXRATE_GI]);
8199 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8200 return -EINVAL;
8201 }
24db78c0
SW		 8202
8203 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8204 /* don't allow empty legacy rates if HT or VHT
8205 * are not even supported.
8206 */
8207 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8208 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8209 return -EINVAL;
8210
8211 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8212 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8213 goto out;
8214
8215 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8216 if (mask.control[band].vht_mcs[i])
8217 goto out;
24db78c0
SW		 8218
8219 /* legacy and mcs rates may not be both empty */
204e35a9 8220 return -EINVAL;
13ae75b1
JM		 8221 }
8222 }
8223
b9243ab0 8224out:
e35e4d28 8225 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8226}
8227
2e161f78 8228static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8229{
4c476991 8230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8231 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8232 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8233
8234 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8235 return -EINVAL;
8236
2e161f78
JB		 8237 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8238 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8239
71bbc994
JB		 8240 switch (wdev->iftype) {
8241 case NL80211_IFTYPE_STATION:
8242 case NL80211_IFTYPE_ADHOC:
8243 case NL80211_IFTYPE_P2P_CLIENT:
8244 case NL80211_IFTYPE_AP:
8245 case NL80211_IFTYPE_AP_VLAN:
8246 case NL80211_IFTYPE_MESH_POINT:
8247 case NL80211_IFTYPE_P2P_GO:
98104fde 8248 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8249 break;
8250 default:
4c476991 8251 return -EOPNOTSUPP;
71bbc994 8252 }
026331c4
JM		 8253
8254 /* not much point in registering if we can't reply */
4c476991
JB		 8255 if (!rdev->ops->mgmt_tx)
8256 return -EOPNOTSUPP;
026331c4 8257
15e47304 8258 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8259 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8260 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8261}
8262
2e161f78 8263static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8264{
4c476991 8265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8266 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8267 struct cfg80211_chan_def chandef;
026331c4 8268 int err;
d64d373f 8269 void *hdr = NULL;
026331c4 8270 u64 cookie;
e247bd90 8271 struct sk_buff *msg = NULL;
b176e629
AO		 8272 struct cfg80211_mgmt_tx_params params = {
8273 .dont_wait_for_ack =
8274 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8275 };
026331c4 8276
683b6d3b 8277 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8278 return -EINVAL;
8279
4c476991
JB		 8280 if (!rdev->ops->mgmt_tx)
8281 return -EOPNOTSUPP;
026331c4 8282
71bbc994 8283 switch (wdev->iftype) {
ea141b75
AQ		 8284 case NL80211_IFTYPE_P2P_DEVICE:
8285 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8286 return -EINVAL;
71bbc994
JB		 8287 case NL80211_IFTYPE_STATION:
8288 case NL80211_IFTYPE_ADHOC:
8289 case NL80211_IFTYPE_P2P_CLIENT:
8290 case NL80211_IFTYPE_AP:
8291 case NL80211_IFTYPE_AP_VLAN:
8292 case NL80211_IFTYPE_MESH_POINT:
8293 case NL80211_IFTYPE_P2P_GO:
8294 break;
8295 default:
4c476991 8296 return -EOPNOTSUPP;
71bbc994 8297 }
026331c4 8298
f7ca38df 8299 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8300 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8301 return -EINVAL;
b176e629 8302 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8303
8304 /*
8305 * We should wait on the channel for at least a minimum amount
8306 * of time (10ms) but no longer than the driver supports.
8307 */
b176e629
AO		 8308 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8309 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8310 return -EINVAL;
8311
f7ca38df
JB		 8312 }
8313
b176e629 8314 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8315
b176e629 8316 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8317 return -EINVAL;
8318
b176e629 8319 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8320
ea141b75
AQ		 8321 /* get the channel if any has been specified, otherwise pass NULL to
8322 * the driver. The latter will use the current one
8323 */
8324 chandef.chan = NULL;
8325 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8326 err = nl80211_parse_chandef(rdev, info, &chandef);
8327 if (err)
8328 return err;
8329 }
8330
b176e629 8331 if (!chandef.chan && params.offchan)
ea141b75 8332 return -EINVAL;
026331c4 8333
34d22ce2
AO		 8334 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8335 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8336
8337 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8338 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8339 int i;
8340
8341 if (len % sizeof(u16))
8342 return -EINVAL;
8343
8344 params.n_csa_offsets = len / sizeof(u16);
8345 params.csa_offsets =
8346 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8347
8348 /* check that all the offsets fit the frame */
8349 for (i = 0; i < params.n_csa_offsets; i++) {
8350 if (params.csa_offsets[i] >= params.len)
8351 return -EINVAL;
8352 }
8353 }
8354
b176e629 8355 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8356 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8357 if (!msg)
8358 return -ENOMEM;
026331c4 8359
15e47304 8360 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8361 NL80211_CMD_FRAME);
cb35fba3
DC		 8362 if (!hdr) {
8363 err = -ENOBUFS;
e247bd90
JB		 8364 goto free_msg;
8365 }
026331c4 8366 }
e247bd90 8367
b176e629
AO		 8368 params.chan = chandef.chan;
8369 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8370 if (err)
8371 goto free_msg;
8372
e247bd90 8373 if (msg) {
9360ffd1
DM		 8374 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8375 goto nla_put_failure;
026331c4 8376
e247bd90
JB		 8377 genlmsg_end(msg, hdr);
8378 return genlmsg_reply(msg, info);
8379 }
8380
8381 return 0;
026331c4
JM		 8382
8383 nla_put_failure:
8384 err = -ENOBUFS;
8385 free_msg:
8386 nlmsg_free(msg);
026331c4
JM		 8387 return err;
8388}
8389
f7ca38df
JB		 8390static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8391{
8392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8393 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8394 u64 cookie;
8395
8396 if (!info->attrs[NL80211_ATTR_COOKIE])
8397 return -EINVAL;
8398
8399 if (!rdev->ops->mgmt_tx_cancel_wait)
8400 return -EOPNOTSUPP;
8401
71bbc994
JB		 8402 switch (wdev->iftype) {
8403 case NL80211_IFTYPE_STATION:
8404 case NL80211_IFTYPE_ADHOC:
8405 case NL80211_IFTYPE_P2P_CLIENT:
8406 case NL80211_IFTYPE_AP:
8407 case NL80211_IFTYPE_AP_VLAN:
8408 case NL80211_IFTYPE_P2P_GO:
98104fde 8409 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8410 break;
8411 default:
f7ca38df 8412 return -EOPNOTSUPP;
71bbc994 8413 }
f7ca38df
JB		 8414
8415 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8416
e35e4d28 8417 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8418}
8419
ffb9eb3d
KV		 8420static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8421{
4c476991 8422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8423 struct wireless_dev *wdev;
4c476991 8424 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8425 u8 ps_state;
8426 bool state;
8427 int err;
8428
4c476991
JB		 8429 if (!info->attrs[NL80211_ATTR_PS_STATE])
8430 return -EINVAL;
ffb9eb3d
KV		 8431
8432 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8433
4c476991
JB		 8434 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8435 return -EINVAL;
ffb9eb3d
KV		 8436
8437 wdev = dev->ieee80211_ptr;
8438
4c476991
JB		 8439 if (!rdev->ops->set_power_mgmt)
8440 return -EOPNOTSUPP;
ffb9eb3d
KV		 8441
8442 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8443
8444 if (state == wdev->ps)
4c476991 8445 return 0;
ffb9eb3d 8446
e35e4d28 8447 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8448 if (!err)
8449 wdev->ps = state;
ffb9eb3d
KV		 8450 return err;
8451}
8452
8453static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8454{
4c476991 8455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8456 enum nl80211_ps_state ps_state;
8457 struct wireless_dev *wdev;
4c476991 8458 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8459 struct sk_buff *msg;
8460 void *hdr;
8461 int err;
8462
ffb9eb3d
KV		 8463 wdev = dev->ieee80211_ptr;
8464
4c476991
JB		 8465 if (!rdev->ops->set_power_mgmt)
8466 return -EOPNOTSUPP;
ffb9eb3d
KV		 8467
8468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8469 if (!msg)
8470 return -ENOMEM;
ffb9eb3d 8471
15e47304 8472 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8473 NL80211_CMD_GET_POWER_SAVE);
8474 if (!hdr) {
4c476991 8475 err = -ENOBUFS;
ffb9eb3d
KV		 8476 goto free_msg;
8477 }
8478
8479 if (wdev->ps)
8480 ps_state = NL80211_PS_ENABLED;
8481 else
8482 ps_state = NL80211_PS_DISABLED;
8483
9360ffd1
DM		 8484 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8485 goto nla_put_failure;
ffb9eb3d
KV		 8486
8487 genlmsg_end(msg, hdr);
4c476991 8488 return genlmsg_reply(msg, info);
ffb9eb3d 8489
4c476991 8490 nla_put_failure:
ffb9eb3d 8491 err = -ENOBUFS;
4c476991 8492 free_msg:
ffb9eb3d 8493 nlmsg_free(msg);
ffb9eb3d
KV		 8494 return err;
8495}
8496
94e860f1
JB		 8497static const struct nla_policy
8498nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8499 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8500 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8501 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8502 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8503 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8504 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8505};
8506
84f10708 8507static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8508 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8509{
8510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8511 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8512 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8513
d9d8b019 8514 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8515 return -EINVAL;
8516
84f10708
TP		 8517 if (!rdev->ops->set_cqm_txe_config)
8518 return -EOPNOTSUPP;
8519
8520 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8521 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8522 return -EOPNOTSUPP;
8523
e35e4d28 8524 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8525}
8526
d6dc1a38
JO		 8527static int nl80211_set_cqm_rssi(struct genl_info *info,
8528 s32 threshold, u32 hysteresis)
8529{
4c476991 8530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8531 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8532 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8533
8534 if (threshold > 0)
8535 return -EINVAL;
8536
1da5fcc8
JB		 8537 /* disabling - hysteresis should also be zero then */
8538 if (threshold == 0)
8539 hysteresis = 0;
d6dc1a38 8540
4c476991
JB		 8541 if (!rdev->ops->set_cqm_rssi_config)
8542 return -EOPNOTSUPP;
d6dc1a38 8543
074ac8df 8544 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8545 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8546 return -EOPNOTSUPP;
d6dc1a38 8547
e35e4d28 8548 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8549}
8550
8551static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8552{
8553 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8554 struct nlattr *cqm;
8555 int err;
8556
8557 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8558 if (!cqm)
8559 return -EINVAL;
d6dc1a38
JO		 8560
8561 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8562 nl80211_attr_cqm_policy);
8563 if (err)
1da5fcc8 8564 return err;
d6dc1a38
JO		 8565
8566 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8567 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8568 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8569 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8570
1da5fcc8
JB		 8571 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8572 }
8573
8574 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8575 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8576 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8577 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8578 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8579 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8580
8581 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8582 }
8583
8584 return -EINVAL;
d6dc1a38
JO		 8585}
8586
6e0bd6c3
RL		 8587static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8588{
8589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8590 struct net_device *dev = info->user_ptr[1];
8591 struct ocb_setup setup = {};
8592 int err;
8593
8594 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8595 if (err)
8596 return err;
8597
8598 return cfg80211_join_ocb(rdev, dev, &setup);
8599}
8600
8601static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8602{
8603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8604 struct net_device *dev = info->user_ptr[1];
8605
8606 return cfg80211_leave_ocb(rdev, dev);
8607}
8608
29cbe68c
JB		 8609static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8610{
8611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8612 struct net_device *dev = info->user_ptr[1];
8613 struct mesh_config cfg;
c80d545d 8614 struct mesh_setup setup;
29cbe68c
JB		 8615 int err;
8616
8617 /* start with default */
8618 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8619 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8620
24bdd9f4 8621 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8622 /* and parse parameters if given */
24bdd9f4 8623 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8624 if (err)
8625 return err;
8626 }
8627
8628 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8629 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8630 return -EINVAL;
8631
c80d545d
JC		 8632 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8633 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8634
4bb62344
CYY		 8635 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8636 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8637 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8638 return -EINVAL;
8639
9bdbf04d
MP		 8640 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8641 setup.beacon_interval =
8642 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8643 if (setup.beacon_interval < 10 ||
8644 setup.beacon_interval > 10000)
8645 return -EINVAL;
8646 }
8647
8648 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8649 setup.dtim_period =
8650 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8651 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8652 return -EINVAL;
8653 }
8654
c80d545d
JC		 8655 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8656 /* parse additional setup parameters if given */
8657 err = nl80211_parse_mesh_setup(info, &setup);
8658 if (err)
8659 return err;
8660 }
8661
d37bb18a
TP		 8662 if (setup.user_mpm)
8663 cfg.auto_open_plinks = false;
8664
cc1d2806 8665 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8666 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8667 if (err)
8668 return err;
cc1d2806
JB		 8669 } else {
8670 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8671 setup.chandef.chan = NULL;
cc1d2806
JB		 8672 }
8673
ffb3cf30
AN		 8674 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8675 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8676 int n_rates =
8677 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8678 struct ieee80211_supported_band *sband;
8679
8680 if (!setup.chandef.chan)
8681 return -EINVAL;
8682
8683 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8684
8685 err = ieee80211_get_ratemask(sband, rates, n_rates,
8686 &setup.basic_rates);
8687 if (err)
8688 return err;
8689 }
8690
c80d545d 8691 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8692}
8693
8694static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8695{
8696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8697 struct net_device *dev = info->user_ptr[1];
8698
8699 return cfg80211_leave_mesh(rdev, dev);
8700}
8701
dfb89c56 8702#ifdef CONFIG_PM
bb92d199
AK		 8703static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8704 struct cfg80211_registered_device *rdev)
8705{
6abb9cb9 8706 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8707 struct nlattr *nl_pats, *nl_pat;
8708 int i, pat_len;
8709
6abb9cb9 8710 if (!wowlan->n_patterns)
bb92d199
AK		 8711 return 0;
8712
8713 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8714 if (!nl_pats)
8715 return -ENOBUFS;
8716
6abb9cb9 8717 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8718 nl_pat = nla_nest_start(msg, i + 1);
8719 if (!nl_pat)
8720 return -ENOBUFS;
6abb9cb9 8721 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8722 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8723 wowlan->patterns[i].mask) ||
50ac6607
AK		 8724 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8725 wowlan->patterns[i].pattern) ||
8726 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8727 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8728 return -ENOBUFS;
8729 nla_nest_end(msg, nl_pat);
8730 }
8731 nla_nest_end(msg, nl_pats);
8732
8733 return 0;
8734}
8735
2a0e047e
JB		 8736static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8737 struct cfg80211_wowlan_tcp *tcp)
8738{
8739 struct nlattr *nl_tcp;
8740
8741 if (!tcp)
8742 return 0;
8743
8744 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8745 if (!nl_tcp)
8746 return -ENOBUFS;
8747
8748 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8749 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8750 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8751 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8752 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8753 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8754 tcp->payload_len, tcp->payload) ||
8755 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8756 tcp->data_interval) ||
8757 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8758 tcp->wake_len, tcp->wake_data) ||
8759 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8760 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8761 return -ENOBUFS;
8762
8763 if (tcp->payload_seq.len &&
8764 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8765 sizeof(tcp->payload_seq), &tcp->payload_seq))
8766 return -ENOBUFS;
8767
8768 if (tcp->payload_tok.len &&
8769 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8770 sizeof(tcp->payload_tok) + tcp->tokens_size,
8771 &tcp->payload_tok))
8772 return -ENOBUFS;
8773
e248ad30
JB		 8774 nla_nest_end(msg, nl_tcp);
8775
2a0e047e
JB		 8776 return 0;
8777}
8778
75453ccb
LC		 8779static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8780 struct cfg80211_sched_scan_request *req)
8781{
8782 struct nlattr *nd, *freqs, *matches, *match;
8783 int i;
8784
8785 if (!req)
8786 return 0;
8787
8788 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8789 if (!nd)
8790 return -ENOBUFS;
8791
8792 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8793 return -ENOBUFS;
8794
8795 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8796 if (!freqs)
8797 return -ENOBUFS;
8798
8799 for (i = 0; i < req->n_channels; i++)
8800 nla_put_u32(msg, i, req->channels[i]->center_freq);
8801
8802 nla_nest_end(msg, freqs);
8803
8804 if (req->n_match_sets) {
8805 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8806 for (i = 0; i < req->n_match_sets; i++) {
8807 match = nla_nest_start(msg, i);
8808 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8809 req->match_sets[i].ssid.ssid_len,
8810 req->match_sets[i].ssid.ssid);
8811 nla_nest_end(msg, match);
8812 }
8813 nla_nest_end(msg, matches);
8814 }
8815
8816 nla_nest_end(msg, nd);
8817
8818 return 0;
8819}
8820
ff1b6e69
JB		 8821static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8822{
8823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8824 struct sk_buff *msg;
8825 void *hdr;
2a0e047e 8826 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8827
964dc9e2 8828 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8829 return -EOPNOTSUPP;
8830
6abb9cb9 8831 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8832 /* adjust size to have room for all the data */
6abb9cb9
JB		 8833 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8834 rdev->wiphy.wowlan_config->tcp->payload_len +
8835 rdev->wiphy.wowlan_config->tcp->wake_len +
8836 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8837 }
8838
8839 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8840 if (!msg)
8841 return -ENOMEM;
8842
15e47304 8843 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8844 NL80211_CMD_GET_WOWLAN);
8845 if (!hdr)
8846 goto nla_put_failure;
8847
6abb9cb9 8848 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8849 struct nlattr *nl_wowlan;
8850
8851 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8852 if (!nl_wowlan)
8853 goto nla_put_failure;
8854
6abb9cb9 8855 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8856 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8857 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8858 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8859 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8860 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8861 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8862 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8863 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8864 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8865 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8866 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8867 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8868 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8869 goto nla_put_failure;
2a0e047e 8870
bb92d199
AK		 8871 if (nl80211_send_wowlan_patterns(msg, rdev))
8872 goto nla_put_failure;
2a0e047e 8873
6abb9cb9
JB		 8874 if (nl80211_send_wowlan_tcp(msg,
8875 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8876 goto nla_put_failure;
75453ccb
LC		 8877
8878 if (nl80211_send_wowlan_nd(
8879 msg,
8880 rdev->wiphy.wowlan_config->nd_config))
8881 goto nla_put_failure;
2a0e047e 8882
ff1b6e69
JB		 8883 nla_nest_end(msg, nl_wowlan);
8884 }
8885
8886 genlmsg_end(msg, hdr);
8887 return genlmsg_reply(msg, info);
8888
8889nla_put_failure:
8890 nlmsg_free(msg);
8891 return -ENOBUFS;
8892}
8893
2a0e047e
JB		 8894static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8895 struct nlattr *attr,
8896 struct cfg80211_wowlan *trig)
8897{
8898 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8899 struct cfg80211_wowlan_tcp *cfg;
8900 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8901 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8902 u32 size;
8903 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8904 int err, port;
8905
964dc9e2 8906 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8907 return -EINVAL;
8908
8909 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8910 nla_data(attr), nla_len(attr),
8911 nl80211_wowlan_tcp_policy);
8912 if (err)
8913 return err;
8914
8915 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8916 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8917 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8918 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8919 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8920 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8921 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8922 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8923 return -EINVAL;
8924
8925 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8926 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8927 return -EINVAL;
8928
8929 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8930 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8931 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8932 return -EINVAL;
8933
8934 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8935 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8936 return -EINVAL;
8937
8938 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8939 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8940 return -EINVAL;
8941
8942 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8943 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8944
8945 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8946 tokens_size = tokln - sizeof(*tok);
8947
8948 if (!tok->len || tokens_size % tok->len)
8949 return -EINVAL;
964dc9e2 8950 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8951 return -EINVAL;
964dc9e2 8952 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8953 return -EINVAL;
964dc9e2 8954 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8955 return -EINVAL;
964dc9e2 8956 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8957 return -EINVAL;
8958 if (tok->offset + tok->len > data_size)
8959 return -EINVAL;
8960 }
8961
8962 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8963 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8964 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8965 return -EINVAL;
8966 if (seq->len == 0 || seq->len > 4)
8967 return -EINVAL;
8968 if (seq->len + seq->offset > data_size)
8969 return -EINVAL;
8970 }
8971
8972 size = sizeof(*cfg);
8973 size += data_size;
8974 size += wake_size + wake_mask_size;
8975 size += tokens_size;
8976
8977 cfg = kzalloc(size, GFP_KERNEL);
8978 if (!cfg)
8979 return -ENOMEM;
8980 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8981 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8982 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8983 ETH_ALEN);
8984 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8985 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8986 else
8987 port = 0;
8988#ifdef CONFIG_INET
8989 /* allocate a socket and port for it and use it */
8990 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8991 IPPROTO_TCP, &cfg->sock, 1);
8992 if (err) {
8993 kfree(cfg);
8994 return err;
8995 }
8996 if (inet_csk_get_port(cfg->sock->sk, port)) {
8997 sock_release(cfg->sock);
8998 kfree(cfg);
8999 return -EADDRINUSE;
9000 }
9001 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9002#else
9003 if (!port) {
9004 kfree(cfg);
9005 return -EINVAL;
9006 }
9007 cfg->src_port = port;
9008#endif
9009
9010 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9011 cfg->payload_len = data_size;
9012 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9013 memcpy((void *)cfg->payload,
9014 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9015 data_size);
9016 if (seq)
9017 cfg->payload_seq = *seq;
9018 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9019 cfg->wake_len = wake_size;
9020 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9021 memcpy((void *)cfg->wake_data,
9022 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9023 wake_size);
9024 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9025 data_size + wake_size;
9026 memcpy((void *)cfg->wake_mask,
9027 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9028 wake_mask_size);
9029 if (tok) {
9030 cfg->tokens_size = tokens_size;
9031 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9032 }
9033
9034 trig->tcp = cfg;
9035
9036 return 0;
9037}
9038
8cd4d456
LC		 9039static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9040 const struct wiphy_wowlan_support *wowlan,
9041 struct nlattr *attr,
9042 struct cfg80211_wowlan *trig)
9043{
9044 struct nlattr **tb;
9045 int err;
9046
9047 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9048 if (!tb)
9049 return -ENOMEM;
9050
9051 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9052 err = -EOPNOTSUPP;
9053 goto out;
9054 }
9055
9056 err = nla_parse(tb, NL80211_ATTR_MAX,
9057 nla_data(attr), nla_len(attr),
9058 nl80211_policy);
9059 if (err)
9060 goto out;
9061
ad2b26ab 9062 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9063 err = PTR_ERR_OR_ZERO(trig->nd_config);
9064 if (err)
9065 trig->nd_config = NULL;
9066
9067out:
9068 kfree(tb);
9069 return err;
9070}
9071
ff1b6e69
JB		 9072static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9073{
9074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9075 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9076 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9077 struct cfg80211_wowlan *ntrig;
964dc9e2 9078 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9079 int err, i;
6abb9cb9 9080 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 9081
964dc9e2 9082 if (!wowlan)
ff1b6e69
JB		 9083 return -EOPNOTSUPP;
9084
ae33bd81
JB		 9085 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9086 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9087 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9088 goto set_wakeup;
9089 }
ff1b6e69
JB		 9090
9091 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9092 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9093 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9094 nl80211_wowlan_policy);
9095 if (err)
9096 return err;
9097
9098 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9099 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9100 return -EINVAL;
9101 new_triggers.any = true;
9102 }
9103
9104 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9105 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9106 return -EINVAL;
9107 new_triggers.disconnect = true;
9108 }
9109
9110 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9111 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9112 return -EINVAL;
9113 new_triggers.magic_pkt = true;
9114 }
9115
77dbbb13
JB		 9116 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9117 return -EINVAL;
9118
9119 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9120 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9121 return -EINVAL;
9122 new_triggers.gtk_rekey_failure = true;
9123 }
9124
9125 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9126 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9127 return -EINVAL;
9128 new_triggers.eap_identity_req = true;
9129 }
9130
9131 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9132 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9133 return -EINVAL;
9134 new_triggers.four_way_handshake = true;
9135 }
9136
9137 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9138 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9139 return -EINVAL;
9140 new_triggers.rfkill_release = true;
9141 }
9142
ff1b6e69
JB		 9143 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9144 struct nlattr *pat;
9145 int n_patterns = 0;
bb92d199 9146 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9147 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9148
9149 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9150 rem)
9151 n_patterns++;
9152 if (n_patterns > wowlan->n_patterns)
9153 return -EINVAL;
9154
9155 new_triggers.patterns = kcalloc(n_patterns,
9156 sizeof(new_triggers.patterns[0]),
9157 GFP_KERNEL);
9158 if (!new_triggers.patterns)
9159 return -ENOMEM;
9160
9161 new_triggers.n_patterns = n_patterns;
9162 i = 0;
9163
9164 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9165 rem) {
922bd80f
JB		 9166 u8 *mask_pat;
9167
50ac6607
AK		 9168 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9169 nla_len(pat), NULL);
ff1b6e69 9170 err = -EINVAL;
50ac6607
AK		 9171 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9172 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9173 goto error;
50ac6607 9174 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9175 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9176 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9177 goto error;
9178 if (pat_len > wowlan->pattern_max_len ||
9179 pat_len < wowlan->pattern_min_len)
9180 goto error;
9181
50ac6607 9182 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9183 pkt_offset = 0;
9184 else
9185 pkt_offset = nla_get_u32(
50ac6607 9186 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9187 if (pkt_offset > wowlan->max_pkt_offset)
9188 goto error;
9189 new_triggers.patterns[i].pkt_offset = pkt_offset;
9190
922bd80f
JB		 9191 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9192 if (!mask_pat) {
ff1b6e69
JB		 9193 err = -ENOMEM;
9194 goto error;
9195 }
922bd80f
JB		 9196 new_triggers.patterns[i].mask = mask_pat;
9197 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9198 mask_len);
922bd80f
JB		 9199 mask_pat += mask_len;
9200 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9201 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9202 memcpy(mask_pat,
50ac6607 9203 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9204 pat_len);
9205 i++;
9206 }
9207 }
9208
2a0e047e
JB		 9209 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9210 err = nl80211_parse_wowlan_tcp(
9211 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9212 &new_triggers);
9213 if (err)
9214 goto error;
9215 }
9216
8cd4d456
LC		 9217 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9218 err = nl80211_parse_wowlan_nd(
9219 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9220 &new_triggers);
9221 if (err)
9222 goto error;
9223 }
9224
ae33bd81
JB		 9225 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9226 if (!ntrig) {
9227 err = -ENOMEM;
9228 goto error;
ff1b6e69 9229 }
ae33bd81 9230 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9231 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9232
ae33bd81 9233 set_wakeup:
6abb9cb9
JB		 9234 if (rdev->ops->set_wakeup &&
9235 prev_enabled != !!rdev->wiphy.wowlan_config)
9236 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9237
ff1b6e69
JB		 9238 return 0;
9239 error:
9240 for (i = 0; i < new_triggers.n_patterns; i++)
9241 kfree(new_triggers.patterns[i].mask);
9242 kfree(new_triggers.patterns);
2a0e047e
JB		 9243 if (new_triggers.tcp && new_triggers.tcp->sock)
9244 sock_release(new_triggers.tcp->sock);
9245 kfree(new_triggers.tcp);
ff1b6e69
JB		 9246 return err;
9247}
dfb89c56 9248#endif
ff1b6e69 9249
be29b99a
AK		 9250static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9251 struct cfg80211_registered_device *rdev)
9252{
9253 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9254 int i, j, pat_len;
9255 struct cfg80211_coalesce_rules *rule;
9256
9257 if (!rdev->coalesce->n_rules)
9258 return 0;
9259
9260 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9261 if (!nl_rules)
9262 return -ENOBUFS;
9263
9264 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9265 nl_rule = nla_nest_start(msg, i + 1);
9266 if (!nl_rule)
9267 return -ENOBUFS;
9268
9269 rule = &rdev->coalesce->rules[i];
9270 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9271 rule->delay))
9272 return -ENOBUFS;
9273
9274 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9275 rule->condition))
9276 return -ENOBUFS;
9277
9278 nl_pats = nla_nest_start(msg,
9279 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9280 if (!nl_pats)
9281 return -ENOBUFS;
9282
9283 for (j = 0; j < rule->n_patterns; j++) {
9284 nl_pat = nla_nest_start(msg, j + 1);
9285 if (!nl_pat)
9286 return -ENOBUFS;
9287 pat_len = rule->patterns[j].pattern_len;
9288 if (nla_put(msg, NL80211_PKTPAT_MASK,
9289 DIV_ROUND_UP(pat_len, 8),
9290 rule->patterns[j].mask) ||
9291 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9292 rule->patterns[j].pattern) ||
9293 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9294 rule->patterns[j].pkt_offset))
9295 return -ENOBUFS;
9296 nla_nest_end(msg, nl_pat);
9297 }
9298 nla_nest_end(msg, nl_pats);
9299 nla_nest_end(msg, nl_rule);
9300 }
9301 nla_nest_end(msg, nl_rules);
9302
9303 return 0;
9304}
9305
9306static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9307{
9308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9309 struct sk_buff *msg;
9310 void *hdr;
9311
9312 if (!rdev->wiphy.coalesce)
9313 return -EOPNOTSUPP;
9314
9315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9316 if (!msg)
9317 return -ENOMEM;
9318
9319 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9320 NL80211_CMD_GET_COALESCE);
9321 if (!hdr)
9322 goto nla_put_failure;
9323
9324 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9325 goto nla_put_failure;
9326
9327 genlmsg_end(msg, hdr);
9328 return genlmsg_reply(msg, info);
9329
9330nla_put_failure:
9331 nlmsg_free(msg);
9332 return -ENOBUFS;
9333}
9334
9335void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9336{
9337 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9338 int i, j;
9339 struct cfg80211_coalesce_rules *rule;
9340
9341 if (!coalesce)
9342 return;
9343
9344 for (i = 0; i < coalesce->n_rules; i++) {
9345 rule = &coalesce->rules[i];
9346 for (j = 0; j < rule->n_patterns; j++)
9347 kfree(rule->patterns[j].mask);
9348 kfree(rule->patterns);
9349 }
9350 kfree(coalesce->rules);
9351 kfree(coalesce);
9352 rdev->coalesce = NULL;
9353}
9354
9355static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9356 struct nlattr *rule,
9357 struct cfg80211_coalesce_rules *new_rule)
9358{
9359 int err, i;
9360 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9361 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9362 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9363 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9364
9365 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9366 nla_len(rule), nl80211_coalesce_policy);
9367 if (err)
9368 return err;
9369
9370 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9371 new_rule->delay =
9372 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9373 if (new_rule->delay > coalesce->max_delay)
9374 return -EINVAL;
9375
9376 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9377 new_rule->condition =
9378 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9379 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9380 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9381 return -EINVAL;
9382
9383 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9384 return -EINVAL;
9385
9386 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9387 rem)
9388 n_patterns++;
9389 if (n_patterns > coalesce->n_patterns)
9390 return -EINVAL;
9391
9392 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9393 GFP_KERNEL);
9394 if (!new_rule->patterns)
9395 return -ENOMEM;
9396
9397 new_rule->n_patterns = n_patterns;
9398 i = 0;
9399
9400 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9401 rem) {
922bd80f
JB		 9402 u8 *mask_pat;
9403
be29b99a
AK		 9404 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9405 nla_len(pat), NULL);
9406 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9407 !pat_tb[NL80211_PKTPAT_PATTERN])
9408 return -EINVAL;
9409 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9410 mask_len = DIV_ROUND_UP(pat_len, 8);
9411 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9412 return -EINVAL;
9413 if (pat_len > coalesce->pattern_max_len ||
9414 pat_len < coalesce->pattern_min_len)
9415 return -EINVAL;
9416
9417 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9418 pkt_offset = 0;
9419 else
9420 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9421 if (pkt_offset > coalesce->max_pkt_offset)
9422 return -EINVAL;
9423 new_rule->patterns[i].pkt_offset = pkt_offset;
9424
922bd80f
JB		 9425 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9426 if (!mask_pat)
be29b99a 9427 return -ENOMEM;
922bd80f
JB		 9428
9429 new_rule->patterns[i].mask = mask_pat;
9430 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9431 mask_len);
9432
9433 mask_pat += mask_len;
9434 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9435 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9436 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9437 pat_len);
be29b99a
AK		 9438 i++;
9439 }
9440
9441 return 0;
9442}
9443
9444static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9445{
9446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9447 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9448 struct cfg80211_coalesce new_coalesce = {};
9449 struct cfg80211_coalesce *n_coalesce;
9450 int err, rem_rule, n_rules = 0, i, j;
9451 struct nlattr *rule;
9452 struct cfg80211_coalesce_rules *tmp_rule;
9453
9454 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9455 return -EOPNOTSUPP;
9456
9457 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9458 cfg80211_rdev_free_coalesce(rdev);
9459 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9460 return 0;
9461 }
9462
9463 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9464 rem_rule)
9465 n_rules++;
9466 if (n_rules > coalesce->n_rules)
9467 return -EINVAL;
9468
9469 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9470 GFP_KERNEL);
9471 if (!new_coalesce.rules)
9472 return -ENOMEM;
9473
9474 new_coalesce.n_rules = n_rules;
9475 i = 0;
9476
9477 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9478 rem_rule) {
9479 err = nl80211_parse_coalesce_rule(rdev, rule,
9480 &new_coalesce.rules[i]);
9481 if (err)
9482 goto error;
9483
9484 i++;
9485 }
9486
9487 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9488 if (err)
9489 goto error;
9490
9491 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9492 if (!n_coalesce) {
9493 err = -ENOMEM;
9494 goto error;
9495 }
9496 cfg80211_rdev_free_coalesce(rdev);
9497 rdev->coalesce = n_coalesce;
9498
9499 return 0;
9500error:
9501 for (i = 0; i < new_coalesce.n_rules; i++) {
9502 tmp_rule = &new_coalesce.rules[i];
9503 for (j = 0; j < tmp_rule->n_patterns; j++)
9504 kfree(tmp_rule->patterns[j].mask);
9505 kfree(tmp_rule->patterns);
9506 }
9507 kfree(new_coalesce.rules);
9508
9509 return err;
9510}
9511
e5497d76
JB		 9512static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9513{
9514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9515 struct net_device *dev = info->user_ptr[1];
9516 struct wireless_dev *wdev = dev->ieee80211_ptr;
9517 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9518 struct cfg80211_gtk_rekey_data rekey_data;
9519 int err;
9520
9521 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9522 return -EINVAL;
9523
9524 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9525 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9526 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9527 nl80211_rekey_policy);
9528 if (err)
9529 return err;
9530
9531 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9532 return -ERANGE;
9533 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9534 return -ERANGE;
9535 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9536 return -ERANGE;
9537
78f686ca
JB		 9538 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9539 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9540 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9541
9542 wdev_lock(wdev);
9543 if (!wdev->current_bss) {
9544 err = -ENOTCONN;
9545 goto out;
9546 }
9547
9548 if (!rdev->ops->set_rekey_data) {
9549 err = -EOPNOTSUPP;
9550 goto out;
9551 }
9552
e35e4d28 9553 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9554 out:
9555 wdev_unlock(wdev);
9556 return err;
9557}
9558
28946da7
JB		 9559static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9560 struct genl_info *info)
9561{
9562 struct net_device *dev = info->user_ptr[1];
9563 struct wireless_dev *wdev = dev->ieee80211_ptr;
9564
9565 if (wdev->iftype != NL80211_IFTYPE_AP &&
9566 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9567 return -EINVAL;
9568
15e47304 9569 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9570 return -EBUSY;
9571
15e47304 9572 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9573 return 0;
9574}
9575
7f6cf311
JB		 9576static int nl80211_probe_client(struct sk_buff *skb,
9577 struct genl_info *info)
9578{
9579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9580 struct net_device *dev = info->user_ptr[1];
9581 struct wireless_dev *wdev = dev->ieee80211_ptr;
9582 struct sk_buff *msg;
9583 void *hdr;
9584 const u8 *addr;
9585 u64 cookie;
9586 int err;
9587
9588 if (wdev->iftype != NL80211_IFTYPE_AP &&
9589 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9590 return -EOPNOTSUPP;
9591
9592 if (!info->attrs[NL80211_ATTR_MAC])
9593 return -EINVAL;
9594
9595 if (!rdev->ops->probe_client)
9596 return -EOPNOTSUPP;
9597
9598 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9599 if (!msg)
9600 return -ENOMEM;
9601
15e47304 9602 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9603 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9604 if (!hdr) {
9605 err = -ENOBUFS;
7f6cf311
JB		 9606 goto free_msg;
9607 }
9608
9609 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9610
e35e4d28 9611 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9612 if (err)
9613 goto free_msg;
9614
9360ffd1
DM		 9615 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9616 goto nla_put_failure;
7f6cf311
JB		 9617
9618 genlmsg_end(msg, hdr);
9619
9620 return genlmsg_reply(msg, info);
9621
9622 nla_put_failure:
9623 err = -ENOBUFS;
9624 free_msg:
9625 nlmsg_free(msg);
9626 return err;
9627}
9628
5e760230
JB		 9629static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9630{
9631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9632 struct cfg80211_beacon_registration *reg, *nreg;
9633 int rv;
5e760230
JB		 9634
9635 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9636 return -EOPNOTSUPP;
9637
37c73b5f
BG		 9638 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9639 if (!nreg)
9640 return -ENOMEM;
9641
9642 /* First, check if already registered. */
9643 spin_lock_bh(&rdev->beacon_registrations_lock);
9644 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9645 if (reg->nlportid == info->snd_portid) {
9646 rv = -EALREADY;
9647 goto out_err;
9648 }
9649 }
9650 /* Add it to the list */
9651 nreg->nlportid = info->snd_portid;
9652 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9653
37c73b5f 9654 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9655
9656 return 0;
37c73b5f
BG		 9657out_err:
9658 spin_unlock_bh(&rdev->beacon_registrations_lock);
9659 kfree(nreg);
9660 return rv;
5e760230
JB		 9661}
9662
98104fde
JB		 9663static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9664{
9665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9666 struct wireless_dev *wdev = info->user_ptr[1];
9667 int err;
9668
9669 if (!rdev->ops->start_p2p_device)
9670 return -EOPNOTSUPP;
9671
9672 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9673 return -EOPNOTSUPP;
9674
9675 if (wdev->p2p_started)
9676 return 0;
9677
b6a55015
LC		 9678 if (rfkill_blocked(rdev->rfkill))
9679 return -ERFKILL;
98104fde 9680
eeb126e9 9681 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9682 if (err)
9683 return err;
9684
9685 wdev->p2p_started = true;
98104fde 9686 rdev->opencount++;
98104fde
JB		 9687
9688 return 0;
9689}
9690
9691static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9692{
9693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9694 struct wireless_dev *wdev = info->user_ptr[1];
9695
9696 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9697 return -EOPNOTSUPP;
9698
9699 if (!rdev->ops->stop_p2p_device)
9700 return -EOPNOTSUPP;
9701
f9f47529 9702 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9703
9704 return 0;
9705}
9706
3713b4e3
JB		 9707static int nl80211_get_protocol_features(struct sk_buff *skb,
9708 struct genl_info *info)
9709{
9710 void *hdr;
9711 struct sk_buff *msg;
9712
9713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9714 if (!msg)
9715 return -ENOMEM;
9716
9717 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9718 NL80211_CMD_GET_PROTOCOL_FEATURES);
9719 if (!hdr)
9720 goto nla_put_failure;
9721
9722 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9723 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9724 goto nla_put_failure;
9725
9726 genlmsg_end(msg, hdr);
9727 return genlmsg_reply(msg, info);
9728
9729 nla_put_failure:
9730 kfree_skb(msg);
9731 return -ENOBUFS;
9732}
9733
355199e0
JM		 9734static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9735{
9736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9737 struct cfg80211_update_ft_ies_params ft_params;
9738 struct net_device *dev = info->user_ptr[1];
9739
9740 if (!rdev->ops->update_ft_ies)
9741 return -EOPNOTSUPP;
9742
9743 if (!info->attrs[NL80211_ATTR_MDID] ||
9744 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9745 return -EINVAL;
9746
9747 memset(&ft_params, 0, sizeof(ft_params));
9748 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9749 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9750 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9751
9752 return rdev_update_ft_ies(rdev, dev, &ft_params);
9753}
9754
5de17984
AS		 9755static int nl80211_crit_protocol_start(struct sk_buff *skb,
9756 struct genl_info *info)
9757{
9758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9759 struct wireless_dev *wdev = info->user_ptr[1];
9760 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9761 u16 duration;
9762 int ret;
9763
9764 if (!rdev->ops->crit_proto_start)
9765 return -EOPNOTSUPP;
9766
9767 if (WARN_ON(!rdev->ops->crit_proto_stop))
9768 return -EINVAL;
9769
9770 if (rdev->crit_proto_nlportid)
9771 return -EBUSY;
9772
9773 /* determine protocol if provided */
9774 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9775 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9776
9777 if (proto >= NUM_NL80211_CRIT_PROTO)
9778 return -EINVAL;
9779
9780 /* timeout must be provided */
9781 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9782 return -EINVAL;
9783
9784 duration =
9785 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9786
9787 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9788 return -ERANGE;
9789
9790 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9791 if (!ret)
9792 rdev->crit_proto_nlportid = info->snd_portid;
9793
9794 return ret;
9795}
9796
9797static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9798 struct genl_info *info)
9799{
9800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9801 struct wireless_dev *wdev = info->user_ptr[1];
9802
9803 if (!rdev->ops->crit_proto_stop)
9804 return -EOPNOTSUPP;
9805
9806 if (rdev->crit_proto_nlportid) {
9807 rdev->crit_proto_nlportid = 0;
9808 rdev_crit_proto_stop(rdev, wdev);
9809 }
9810 return 0;
9811}
9812
ad7e718c
JB		 9813static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9814{
9815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9816 struct wireless_dev *wdev =
9817 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9818 int i, err;
9819 u32 vid, subcmd;
9820
9821 if (!rdev->wiphy.vendor_commands)
9822 return -EOPNOTSUPP;
9823
9824 if (IS_ERR(wdev)) {
9825 err = PTR_ERR(wdev);
9826 if (err != -EINVAL)
9827 return err;
9828 wdev = NULL;
9829 } else if (wdev->wiphy != &rdev->wiphy) {
9830 return -EINVAL;
9831 }
9832
9833 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9834 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9835 return -EINVAL;
9836
9837 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9838 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9839 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9840 const struct wiphy_vendor_command *vcmd;
9841 void *data = NULL;
9842 int len = 0;
9843
9844 vcmd = &rdev->wiphy.vendor_commands[i];
9845
9846 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9847 continue;
9848
9849 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9850 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9851 if (!wdev)
9852 return -EINVAL;
9853 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9854 !wdev->netdev)
9855 return -EINVAL;
9856
9857 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9858 if (wdev->netdev &&
9859 !netif_running(wdev->netdev))
9860 return -ENETDOWN;
9861 if (!wdev->netdev && !wdev->p2p_started)
9862 return -ENETDOWN;
9863 }
9864 } else {
9865 wdev = NULL;
9866 }
9867
9868 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9869 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9870 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9871 }
9872
9873 rdev->cur_cmd_info = info;
9874 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9875 data, len);
9876 rdev->cur_cmd_info = NULL;
9877 return err;
9878 }
9879
9880 return -EOPNOTSUPP;
9881}
9882
9883struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9884 enum nl80211_commands cmd,
9885 enum nl80211_attrs attr,
9886 int approxlen)
9887{
f26cbf40 9888 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9889
9890 if (WARN_ON(!rdev->cur_cmd_info))
9891 return NULL;
9892
9893 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9894 rdev->cur_cmd_info->snd_portid,
9895 rdev->cur_cmd_info->snd_seq,
567ffc35 9896 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9897}
9898EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9899
9900int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9901{
9902 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9903 void *hdr = ((void **)skb->cb)[1];
9904 struct nlattr *data = ((void **)skb->cb)[2];
9905
bd8c78e7
JB		 9906 /* clear CB data for netlink core to own from now on */
9907 memset(skb->cb, 0, sizeof(skb->cb));
9908
ad7e718c
JB		 9909 if (WARN_ON(!rdev->cur_cmd_info)) {
9910 kfree_skb(skb);
9911 return -EINVAL;
9912 }
9913
9914 nla_nest_end(skb, data);
9915 genlmsg_end(skb, hdr);
9916 return genlmsg_reply(skb, rdev->cur_cmd_info);
9917}
9918EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9919
9920
fa9ffc74
KP		 9921static int nl80211_set_qos_map(struct sk_buff *skb,
9922 struct genl_info *info)
9923{
9924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9925 struct cfg80211_qos_map *qos_map = NULL;
9926 struct net_device *dev = info->user_ptr[1];
9927 u8 *pos, len, num_des, des_len, des;
9928 int ret;
9929
9930 if (!rdev->ops->set_qos_map)
9931 return -EOPNOTSUPP;
9932
9933 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9934 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9935 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9936
9937 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9938 len > IEEE80211_QOS_MAP_LEN_MAX)
9939 return -EINVAL;
9940
9941 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9942 if (!qos_map)
9943 return -ENOMEM;
9944
9945 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9946 if (num_des) {
9947 des_len = num_des *
9948 sizeof(struct cfg80211_dscp_exception);
9949 memcpy(qos_map->dscp_exception, pos, des_len);
9950 qos_map->num_des = num_des;
9951 for (des = 0; des < num_des; des++) {
9952 if (qos_map->dscp_exception[des].up > 7) {
9953 kfree(qos_map);
9954 return -EINVAL;
9955 }
9956 }
9957 pos += des_len;
9958 }
9959 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9960 }
9961
9962 wdev_lock(dev->ieee80211_ptr);
9963 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9964 if (!ret)
9965 ret = rdev_set_qos_map(rdev, dev, qos_map);
9966 wdev_unlock(dev->ieee80211_ptr);
9967
9968 kfree(qos_map);
9969 return ret;
9970}
9971
960d01ac
JB		 9972static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9973{
9974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9975 struct net_device *dev = info->user_ptr[1];
9976 struct wireless_dev *wdev = dev->ieee80211_ptr;
9977 const u8 *peer;
9978 u8 tsid, up;
9979 u16 admitted_time = 0;
9980 int err;
9981
723e73ac 9982 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9983 return -EOPNOTSUPP;
9984
9985 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9986 !info->attrs[NL80211_ATTR_USER_PRIO])
9987 return -EINVAL;
9988
9989 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9990 if (tsid >= IEEE80211_NUM_TIDS)
9991 return -EINVAL;
9992
9993 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9994 if (up >= IEEE80211_NUM_UPS)
9995 return -EINVAL;
9996
9997 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9998 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9999 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10000 * need more attributes for that (e.g. BA session requirement);
10001 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10002 */
10003 return -EINVAL;
10004 }
10005
10006 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10007
10008 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10009 admitted_time =
10010 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10011 if (!admitted_time)
10012 return -EINVAL;
10013 }
10014
10015 wdev_lock(wdev);
10016 switch (wdev->iftype) {
10017 case NL80211_IFTYPE_STATION:
10018 case NL80211_IFTYPE_P2P_CLIENT:
10019 if (wdev->current_bss)
10020 break;
10021 err = -ENOTCONN;
10022 goto out;
10023 default:
10024 err = -EOPNOTSUPP;
10025 goto out;
10026 }
10027
10028 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10029
10030 out:
10031 wdev_unlock(wdev);
10032 return err;
10033}
10034
10035static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10036{
10037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10038 struct net_device *dev = info->user_ptr[1];
10039 struct wireless_dev *wdev = dev->ieee80211_ptr;
10040 const u8 *peer;
10041 u8 tsid;
10042 int err;
10043
10044 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10045 return -EINVAL;
10046
10047 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10048 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10049
10050 wdev_lock(wdev);
10051 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10052 wdev_unlock(wdev);
10053
10054 return err;
10055}
10056
1057d35e
AN		 10057static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10058 struct genl_info *info)
10059{
10060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10061 struct net_device *dev = info->user_ptr[1];
10062 struct wireless_dev *wdev = dev->ieee80211_ptr;
10063 struct cfg80211_chan_def chandef = {};
10064 const u8 *addr;
10065 u8 oper_class;
10066 int err;
10067
10068 if (!rdev->ops->tdls_channel_switch ||
10069 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10070 return -EOPNOTSUPP;
10071
10072 switch (dev->ieee80211_ptr->iftype) {
10073 case NL80211_IFTYPE_STATION:
10074 case NL80211_IFTYPE_P2P_CLIENT:
10075 break;
10076 default:
10077 return -EOPNOTSUPP;
10078 }
10079
10080 if (!info->attrs[NL80211_ATTR_MAC] ||
10081 !info->attrs[NL80211_ATTR_OPER_CLASS])
10082 return -EINVAL;
10083
10084 err = nl80211_parse_chandef(rdev, info, &chandef);
10085 if (err)
10086 return err;
10087
10088 /*
10089 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10090 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10091 * specification is not defined for them.
10092 */
10093 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10094 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10095 chandef.width != NL80211_CHAN_WIDTH_20)
10096 return -EINVAL;
10097
10098 /* we will be active on the TDLS link */
10099 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10100 return -EINVAL;
10101
10102 /* don't allow switching to DFS channels */
10103 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10104 return -EINVAL;
10105
10106 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10107 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10108
10109 wdev_lock(wdev);
10110 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10111 wdev_unlock(wdev);
10112
10113 return err;
10114}
10115
10116static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10117 struct genl_info *info)
10118{
10119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10120 struct net_device *dev = info->user_ptr[1];
10121 struct wireless_dev *wdev = dev->ieee80211_ptr;
10122 const u8 *addr;
10123
10124 if (!rdev->ops->tdls_channel_switch ||
10125 !rdev->ops->tdls_cancel_channel_switch ||
10126 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10127 return -EOPNOTSUPP;
10128
10129 switch (dev->ieee80211_ptr->iftype) {
10130 case NL80211_IFTYPE_STATION:
10131 case NL80211_IFTYPE_P2P_CLIENT:
10132 break;
10133 default:
10134 return -EOPNOTSUPP;
10135 }
10136
10137 if (!info->attrs[NL80211_ATTR_MAC])
10138 return -EINVAL;
10139
10140 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10141
10142 wdev_lock(wdev);
10143 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10144 wdev_unlock(wdev);
10145
10146 return 0;
10147}
10148
4c476991
JB		 10149#define NL80211_FLAG_NEED_WIPHY 0x01
10150#define NL80211_FLAG_NEED_NETDEV 0x02
10151#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10152#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10153#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10154 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10155#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10156/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10157#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10158 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10159#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10160
f84f771d 10161static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10162 struct genl_info *info)
10163{
10164 struct cfg80211_registered_device *rdev;
89a54e48 10165 struct wireless_dev *wdev;
4c476991 10166 struct net_device *dev;
4c476991
JB		 10167 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10168
10169 if (rtnl)
10170 rtnl_lock();
10171
10172 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10173 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10174 if (IS_ERR(rdev)) {
10175 if (rtnl)
10176 rtnl_unlock();
10177 return PTR_ERR(rdev);
10178 }
10179 info->user_ptr[0] = rdev;
1bf614ef
JB		 10180 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10181 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10182 ASSERT_RTNL();
10183
89a54e48
JB		 10184 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10185 info->attrs);
10186 if (IS_ERR(wdev)) {
4c476991
JB		 10187 if (rtnl)
10188 rtnl_unlock();
89a54e48 10189 return PTR_ERR(wdev);
4c476991 10190 }
89a54e48 10191
89a54e48 10192 dev = wdev->netdev;
f26cbf40 10193 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10194
1bf614ef
JB		 10195 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10196 if (!dev) {
1bf614ef
JB		 10197 if (rtnl)
10198 rtnl_unlock();
10199 return -EINVAL;
10200 }
10201
10202 info->user_ptr[1] = dev;
10203 } else {
10204 info->user_ptr[1] = wdev;
41265714 10205 }
1bf614ef
JB		 10206
10207 if (dev) {
10208 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10209 !netif_running(dev)) {
1bf614ef
JB		 10210 if (rtnl)
10211 rtnl_unlock();
10212 return -ENETDOWN;
10213 }
10214
10215 dev_hold(dev);
98104fde
JB		 10216 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10217 if (!wdev->p2p_started) {
98104fde
JB		 10218 if (rtnl)
10219 rtnl_unlock();
10220 return -ENETDOWN;
10221 }
41265714 10222 }
89a54e48 10223
4c476991 10224 info->user_ptr[0] = rdev;
4c476991
JB		 10225 }
10226
10227 return 0;
10228}
10229
f84f771d 10230static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10231 struct genl_info *info)
10232{
1bf614ef
JB		 10233 if (info->user_ptr[1]) {
10234 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10235 struct wireless_dev *wdev = info->user_ptr[1];
10236
10237 if (wdev->netdev)
10238 dev_put(wdev->netdev);
10239 } else {
10240 dev_put(info->user_ptr[1]);
10241 }
10242 }
5393b917 10243
4c476991
JB		 10244 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10245 rtnl_unlock();
5393b917
JB		 10246
10247 /* If needed, clear the netlink message payload from the SKB
10248 * as it might contain key data that shouldn't stick around on
10249 * the heap after the SKB is freed. The netlink message header
10250 * is still needed for further processing, so leave it intact.
10251 */
10252 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10253 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10254
10255 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10256 }
4c476991
JB		 10257}
10258
4534de83 10259static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10260 {
10261 .cmd = NL80211_CMD_GET_WIPHY,
10262 .doit = nl80211_get_wiphy,
10263 .dumpit = nl80211_dump_wiphy,
86e8cf98 10264 .done = nl80211_dump_wiphy_done,
55682965
JB		 10265 .policy = nl80211_policy,
10266 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10267 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10268 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10269 },
10270 {
10271 .cmd = NL80211_CMD_SET_WIPHY,
10272 .doit = nl80211_set_wiphy,
10273 .policy = nl80211_policy,
10274 .flags = GENL_ADMIN_PERM,
4c476991 10275 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10276 },
10277 {
10278 .cmd = NL80211_CMD_GET_INTERFACE,
10279 .doit = nl80211_get_interface,
10280 .dumpit = nl80211_dump_interface,
10281 .policy = nl80211_policy,
10282 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10283 .internal_flags = NL80211_FLAG_NEED_WDEV |
10284 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10285 },
10286 {
10287 .cmd = NL80211_CMD_SET_INTERFACE,
10288 .doit = nl80211_set_interface,
10289 .policy = nl80211_policy,
10290 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10291 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10292 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10293 },
10294 {
10295 .cmd = NL80211_CMD_NEW_INTERFACE,
10296 .doit = nl80211_new_interface,
10297 .policy = nl80211_policy,
10298 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10299 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10300 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10301 },
10302 {
10303 .cmd = NL80211_CMD_DEL_INTERFACE,
10304 .doit = nl80211_del_interface,
10305 .policy = nl80211_policy,
41ade00f 10306 .flags = GENL_ADMIN_PERM,
84efbb84 10307 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10308 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10309 },
10310 {
10311 .cmd = NL80211_CMD_GET_KEY,
10312 .doit = nl80211_get_key,
10313 .policy = nl80211_policy,
10314 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10315 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10316 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10317 },
10318 {
10319 .cmd = NL80211_CMD_SET_KEY,
10320 .doit = nl80211_set_key,
10321 .policy = nl80211_policy,
10322 .flags = GENL_ADMIN_PERM,
41265714 10323 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10324 NL80211_FLAG_NEED_RTNL |
10325 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10326 },
10327 {
10328 .cmd = NL80211_CMD_NEW_KEY,
10329 .doit = nl80211_new_key,
10330 .policy = nl80211_policy,
10331 .flags = GENL_ADMIN_PERM,
41265714 10332 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10333 NL80211_FLAG_NEED_RTNL |
10334 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10335 },
10336 {
10337 .cmd = NL80211_CMD_DEL_KEY,
10338 .doit = nl80211_del_key,
10339 .policy = nl80211_policy,
55682965 10340 .flags = GENL_ADMIN_PERM,
41265714 10341 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10342 NL80211_FLAG_NEED_RTNL,
55682965 10343 },
ed1b6cc7
JB		 10344 {
10345 .cmd = NL80211_CMD_SET_BEACON,
10346 .policy = nl80211_policy,
10347 .flags = GENL_ADMIN_PERM,
8860020e 10348 .doit = nl80211_set_beacon,
2b5f8b0b 10349 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10350 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10351 },
10352 {
8860020e 10353 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10354 .policy = nl80211_policy,
10355 .flags = GENL_ADMIN_PERM,
8860020e 10356 .doit = nl80211_start_ap,
2b5f8b0b 10357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10358 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10359 },
10360 {
8860020e 10361 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10362 .policy = nl80211_policy,
10363 .flags = GENL_ADMIN_PERM,
8860020e 10364 .doit = nl80211_stop_ap,
2b5f8b0b 10365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10366 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10367 },
5727ef1b
JB		 10368 {
10369 .cmd = NL80211_CMD_GET_STATION,
10370 .doit = nl80211_get_station,
2ec600d6 10371 .dumpit = nl80211_dump_station,
5727ef1b 10372 .policy = nl80211_policy,
4c476991
JB		 10373 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10374 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10375 },
10376 {
10377 .cmd = NL80211_CMD_SET_STATION,
10378 .doit = nl80211_set_station,
10379 .policy = nl80211_policy,
10380 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10382 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10383 },
10384 {
10385 .cmd = NL80211_CMD_NEW_STATION,
10386 .doit = nl80211_new_station,
10387 .policy = nl80211_policy,
10388 .flags = GENL_ADMIN_PERM,
41265714 10389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10390 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10391 },
10392 {
10393 .cmd = NL80211_CMD_DEL_STATION,
10394 .doit = nl80211_del_station,
10395 .policy = nl80211_policy,
2ec600d6 10396 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10398 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10399 },
10400 {
10401 .cmd = NL80211_CMD_GET_MPATH,
10402 .doit = nl80211_get_mpath,
10403 .dumpit = nl80211_dump_mpath,
10404 .policy = nl80211_policy,
10405 .flags = GENL_ADMIN_PERM,
41265714 10406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10407 NL80211_FLAG_NEED_RTNL,
2ec600d6 10408 },
66be7d2b
HR		 10409 {
10410 .cmd = NL80211_CMD_GET_MPP,
10411 .doit = nl80211_get_mpp,
10412 .dumpit = nl80211_dump_mpp,
10413 .policy = nl80211_policy,
10414 .flags = GENL_ADMIN_PERM,
10415 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10416 NL80211_FLAG_NEED_RTNL,
10417 },
2ec600d6
LCC		 10418 {
10419 .cmd = NL80211_CMD_SET_MPATH,
10420 .doit = nl80211_set_mpath,
10421 .policy = nl80211_policy,
10422 .flags = GENL_ADMIN_PERM,
41265714 10423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10424 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10425 },
10426 {
10427 .cmd = NL80211_CMD_NEW_MPATH,
10428 .doit = nl80211_new_mpath,
10429 .policy = nl80211_policy,
10430 .flags = GENL_ADMIN_PERM,
41265714 10431 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10432 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10433 },
10434 {
10435 .cmd = NL80211_CMD_DEL_MPATH,
10436 .doit = nl80211_del_mpath,
10437 .policy = nl80211_policy,
9f1ba906 10438 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10439 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10440 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10441 },
10442 {
10443 .cmd = NL80211_CMD_SET_BSS,
10444 .doit = nl80211_set_bss,
10445 .policy = nl80211_policy,
b2e1b302 10446 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10448 NL80211_FLAG_NEED_RTNL,
b2e1b302 10449 },
f130347c
LR		 10450 {
10451 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10452 .doit = nl80211_get_reg_do,
10453 .dumpit = nl80211_get_reg_dump,
f130347c 10454 .policy = nl80211_policy,
5fe231e8 10455 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10456 /* can be retrieved by unprivileged users */
10457 },
b2e1b302
LR		 10458 {
10459 .cmd = NL80211_CMD_SET_REG,
10460 .doit = nl80211_set_reg,
10461 .policy = nl80211_policy,
10462 .flags = GENL_ADMIN_PERM,
5fe231e8 10463 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10464 },
10465 {
10466 .cmd = NL80211_CMD_REQ_SET_REG,
10467 .doit = nl80211_req_set_reg,
10468 .policy = nl80211_policy,
93da9cc1 10469 .flags = GENL_ADMIN_PERM,
10470 },
10471 {
24bdd9f4
JC		 10472 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10473 .doit = nl80211_get_mesh_config,
93da9cc1 10474 .policy = nl80211_policy,
10475 /* can be retrieved by unprivileged users */
2b5f8b0b 10476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10477 NL80211_FLAG_NEED_RTNL,
93da9cc1 10478 },
10479 {
24bdd9f4
JC		 10480 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10481 .doit = nl80211_update_mesh_config,
93da9cc1 10482 .policy = nl80211_policy,
9aed3cc1 10483 .flags = GENL_ADMIN_PERM,
29cbe68c 10484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10485 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10486 },
2a519311
JB		 10487 {
10488 .cmd = NL80211_CMD_TRIGGER_SCAN,
10489 .doit = nl80211_trigger_scan,
10490 .policy = nl80211_policy,
10491 .flags = GENL_ADMIN_PERM,
fd014284 10492 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10493 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10494 },
10495 {
10496 .cmd = NL80211_CMD_GET_SCAN,
10497 .policy = nl80211_policy,
10498 .dumpit = nl80211_dump_scan,
10499 },
807f8a8c
LC		 10500 {
10501 .cmd = NL80211_CMD_START_SCHED_SCAN,
10502 .doit = nl80211_start_sched_scan,
10503 .policy = nl80211_policy,
10504 .flags = GENL_ADMIN_PERM,
10505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10506 NL80211_FLAG_NEED_RTNL,
10507 },
10508 {
10509 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10510 .doit = nl80211_stop_sched_scan,
10511 .policy = nl80211_policy,
10512 .flags = GENL_ADMIN_PERM,
10513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10514 NL80211_FLAG_NEED_RTNL,
10515 },
636a5d36
JM		 10516 {
10517 .cmd = NL80211_CMD_AUTHENTICATE,
10518 .doit = nl80211_authenticate,
10519 .policy = nl80211_policy,
10520 .flags = GENL_ADMIN_PERM,
41265714 10521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10522 NL80211_FLAG_NEED_RTNL |
10523 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10524 },
10525 {
10526 .cmd = NL80211_CMD_ASSOCIATE,
10527 .doit = nl80211_associate,
10528 .policy = nl80211_policy,
10529 .flags = GENL_ADMIN_PERM,
41265714 10530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10531 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10532 },
10533 {
10534 .cmd = NL80211_CMD_DEAUTHENTICATE,
10535 .doit = nl80211_deauthenticate,
10536 .policy = nl80211_policy,
10537 .flags = GENL_ADMIN_PERM,
41265714 10538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10539 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10540 },
10541 {
10542 .cmd = NL80211_CMD_DISASSOCIATE,
10543 .doit = nl80211_disassociate,
10544 .policy = nl80211_policy,
10545 .flags = GENL_ADMIN_PERM,
41265714 10546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10547 NL80211_FLAG_NEED_RTNL,
636a5d36 10548 },
04a773ad
JB		 10549 {
10550 .cmd = NL80211_CMD_JOIN_IBSS,
10551 .doit = nl80211_join_ibss,
10552 .policy = nl80211_policy,
10553 .flags = GENL_ADMIN_PERM,
41265714 10554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10555 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10556 },
10557 {
10558 .cmd = NL80211_CMD_LEAVE_IBSS,
10559 .doit = nl80211_leave_ibss,
10560 .policy = nl80211_policy,
10561 .flags = GENL_ADMIN_PERM,
41265714 10562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10563 NL80211_FLAG_NEED_RTNL,
04a773ad 10564 },
aff89a9b
JB		 10565#ifdef CONFIG_NL80211_TESTMODE
10566 {
10567 .cmd = NL80211_CMD_TESTMODE,
10568 .doit = nl80211_testmode_do,
71063f0e 10569 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10570 .policy = nl80211_policy,
10571 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10572 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10573 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10574 },
10575#endif
b23aa676
SO		 10576 {
10577 .cmd = NL80211_CMD_CONNECT,
10578 .doit = nl80211_connect,
10579 .policy = nl80211_policy,
10580 .flags = GENL_ADMIN_PERM,
41265714 10581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10582 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10583 },
10584 {
10585 .cmd = NL80211_CMD_DISCONNECT,
10586 .doit = nl80211_disconnect,
10587 .policy = nl80211_policy,
10588 .flags = GENL_ADMIN_PERM,
41265714 10589 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10590 NL80211_FLAG_NEED_RTNL,
b23aa676 10591 },
463d0183
JB		 10592 {
10593 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10594 .doit = nl80211_wiphy_netns,
10595 .policy = nl80211_policy,
10596 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10597 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10598 NL80211_FLAG_NEED_RTNL,
463d0183 10599 },
61fa713c
HS		 10600 {
10601 .cmd = NL80211_CMD_GET_SURVEY,
10602 .policy = nl80211_policy,
10603 .dumpit = nl80211_dump_survey,
10604 },
67fbb16b
SO		 10605 {
10606 .cmd = NL80211_CMD_SET_PMKSA,
10607 .doit = nl80211_setdel_pmksa,
10608 .policy = nl80211_policy,
10609 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10611 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10612 },
10613 {
10614 .cmd = NL80211_CMD_DEL_PMKSA,
10615 .doit = nl80211_setdel_pmksa,
10616 .policy = nl80211_policy,
10617 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10619 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10620 },
10621 {
10622 .cmd = NL80211_CMD_FLUSH_PMKSA,
10623 .doit = nl80211_flush_pmksa,
10624 .policy = nl80211_policy,
10625 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10627 NL80211_FLAG_NEED_RTNL,
67fbb16b 10628 },
9588bbd5
JM		 10629 {
10630 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10631 .doit = nl80211_remain_on_channel,
10632 .policy = nl80211_policy,
10633 .flags = GENL_ADMIN_PERM,
71bbc994 10634 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10635 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10636 },
10637 {
10638 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10639 .doit = nl80211_cancel_remain_on_channel,
10640 .policy = nl80211_policy,
10641 .flags = GENL_ADMIN_PERM,
71bbc994 10642 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10643 NL80211_FLAG_NEED_RTNL,
9588bbd5 10644 },
13ae75b1
JM		 10645 {
10646 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10647 .doit = nl80211_set_tx_bitrate_mask,
10648 .policy = nl80211_policy,
10649 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10650 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10651 NL80211_FLAG_NEED_RTNL,
13ae75b1 10652 },
026331c4 10653 {
2e161f78
JB		 10654 .cmd = NL80211_CMD_REGISTER_FRAME,
10655 .doit = nl80211_register_mgmt,
026331c4
JM		 10656 .policy = nl80211_policy,
10657 .flags = GENL_ADMIN_PERM,
71bbc994 10658 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10659 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10660 },
10661 {
2e161f78
JB		 10662 .cmd = NL80211_CMD_FRAME,
10663 .doit = nl80211_tx_mgmt,
026331c4 10664 .policy = nl80211_policy,
f7ca38df 10665 .flags = GENL_ADMIN_PERM,
71bbc994 10666 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10667 NL80211_FLAG_NEED_RTNL,
10668 },
10669 {
10670 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10671 .doit = nl80211_tx_mgmt_cancel_wait,
10672 .policy = nl80211_policy,
026331c4 10673 .flags = GENL_ADMIN_PERM,
71bbc994 10674 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10675 NL80211_FLAG_NEED_RTNL,
026331c4 10676 },
ffb9eb3d
KV		 10677 {
10678 .cmd = NL80211_CMD_SET_POWER_SAVE,
10679 .doit = nl80211_set_power_save,
10680 .policy = nl80211_policy,
10681 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10682 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10683 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10684 },
10685 {
10686 .cmd = NL80211_CMD_GET_POWER_SAVE,
10687 .doit = nl80211_get_power_save,
10688 .policy = nl80211_policy,
10689 /* can be retrieved by unprivileged users */
4c476991
JB		 10690 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10691 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10692 },
d6dc1a38
JO		 10693 {
10694 .cmd = NL80211_CMD_SET_CQM,
10695 .doit = nl80211_set_cqm,
10696 .policy = nl80211_policy,
10697 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10698 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10699 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10700 },
f444de05
JB		 10701 {
10702 .cmd = NL80211_CMD_SET_CHANNEL,
10703 .doit = nl80211_set_channel,
10704 .policy = nl80211_policy,
10705 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10706 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10707 NL80211_FLAG_NEED_RTNL,
f444de05 10708 },
e8347eba
BJ		 10709 {
10710 .cmd = NL80211_CMD_SET_WDS_PEER,
10711 .doit = nl80211_set_wds_peer,
10712 .policy = nl80211_policy,
10713 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10714 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10715 NL80211_FLAG_NEED_RTNL,
e8347eba 10716 },
29cbe68c
JB		 10717 {
10718 .cmd = NL80211_CMD_JOIN_MESH,
10719 .doit = nl80211_join_mesh,
10720 .policy = nl80211_policy,
10721 .flags = GENL_ADMIN_PERM,
10722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10723 NL80211_FLAG_NEED_RTNL,
10724 },
10725 {
10726 .cmd = NL80211_CMD_LEAVE_MESH,
10727 .doit = nl80211_leave_mesh,
10728 .policy = nl80211_policy,
10729 .flags = GENL_ADMIN_PERM,
10730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10731 NL80211_FLAG_NEED_RTNL,
10732 },
6e0bd6c3
RL		 10733 {
10734 .cmd = NL80211_CMD_JOIN_OCB,
10735 .doit = nl80211_join_ocb,
10736 .policy = nl80211_policy,
10737 .flags = GENL_ADMIN_PERM,
10738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10739 NL80211_FLAG_NEED_RTNL,
10740 },
10741 {
10742 .cmd = NL80211_CMD_LEAVE_OCB,
10743 .doit = nl80211_leave_ocb,
10744 .policy = nl80211_policy,
10745 .flags = GENL_ADMIN_PERM,
10746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10747 NL80211_FLAG_NEED_RTNL,
10748 },
dfb89c56 10749#ifdef CONFIG_PM
ff1b6e69
JB		 10750 {
10751 .cmd = NL80211_CMD_GET_WOWLAN,
10752 .doit = nl80211_get_wowlan,
10753 .policy = nl80211_policy,
10754 /* can be retrieved by unprivileged users */
10755 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10756 NL80211_FLAG_NEED_RTNL,
10757 },
10758 {
10759 .cmd = NL80211_CMD_SET_WOWLAN,
10760 .doit = nl80211_set_wowlan,
10761 .policy = nl80211_policy,
10762 .flags = GENL_ADMIN_PERM,
10763 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10764 NL80211_FLAG_NEED_RTNL,
10765 },
dfb89c56 10766#endif
e5497d76
JB		 10767 {
10768 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10769 .doit = nl80211_set_rekey_data,
10770 .policy = nl80211_policy,
10771 .flags = GENL_ADMIN_PERM,
10772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10773 NL80211_FLAG_NEED_RTNL |
10774 NL80211_FLAG_CLEAR_SKB,
e5497d76 10775 },
109086ce
AN		 10776 {
10777 .cmd = NL80211_CMD_TDLS_MGMT,
10778 .doit = nl80211_tdls_mgmt,
10779 .policy = nl80211_policy,
10780 .flags = GENL_ADMIN_PERM,
10781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10782 NL80211_FLAG_NEED_RTNL,
10783 },
10784 {
10785 .cmd = NL80211_CMD_TDLS_OPER,
10786 .doit = nl80211_tdls_oper,
10787 .policy = nl80211_policy,
10788 .flags = GENL_ADMIN_PERM,
10789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10790 NL80211_FLAG_NEED_RTNL,
10791 },
28946da7
JB		 10792 {
10793 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10794 .doit = nl80211_register_unexpected_frame,
10795 .policy = nl80211_policy,
10796 .flags = GENL_ADMIN_PERM,
10797 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10798 NL80211_FLAG_NEED_RTNL,
10799 },
7f6cf311
JB		 10800 {
10801 .cmd = NL80211_CMD_PROBE_CLIENT,
10802 .doit = nl80211_probe_client,
10803 .policy = nl80211_policy,
10804 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10806 NL80211_FLAG_NEED_RTNL,
10807 },
5e760230
JB		 10808 {
10809 .cmd = NL80211_CMD_REGISTER_BEACONS,
10810 .doit = nl80211_register_beacons,
10811 .policy = nl80211_policy,
10812 .flags = GENL_ADMIN_PERM,
10813 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10814 NL80211_FLAG_NEED_RTNL,
10815 },
1d9d9213
SW		 10816 {
10817 .cmd = NL80211_CMD_SET_NOACK_MAP,
10818 .doit = nl80211_set_noack_map,
10819 .policy = nl80211_policy,
10820 .flags = GENL_ADMIN_PERM,
10821 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10822 NL80211_FLAG_NEED_RTNL,
10823 },
98104fde
JB		 10824 {
10825 .cmd = NL80211_CMD_START_P2P_DEVICE,
10826 .doit = nl80211_start_p2p_device,
10827 .policy = nl80211_policy,
10828 .flags = GENL_ADMIN_PERM,
10829 .internal_flags = NL80211_FLAG_NEED_WDEV |
10830 NL80211_FLAG_NEED_RTNL,
10831 },
10832 {
10833 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10834 .doit = nl80211_stop_p2p_device,
10835 .policy = nl80211_policy,
10836 .flags = GENL_ADMIN_PERM,
10837 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10838 NL80211_FLAG_NEED_RTNL,
10839 },
f4e583c8
AQ		 10840 {
10841 .cmd = NL80211_CMD_SET_MCAST_RATE,
10842 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10843 .policy = nl80211_policy,
10844 .flags = GENL_ADMIN_PERM,
10845 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10846 NL80211_FLAG_NEED_RTNL,
10847 },
10848 {
10849 .cmd = NL80211_CMD_SET_MAC_ACL,
10850 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10851 .policy = nl80211_policy,
10852 .flags = GENL_ADMIN_PERM,
10853 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10854 NL80211_FLAG_NEED_RTNL,
10855 },
04f39047
SW		 10856 {
10857 .cmd = NL80211_CMD_RADAR_DETECT,
10858 .doit = nl80211_start_radar_detection,
10859 .policy = nl80211_policy,
10860 .flags = GENL_ADMIN_PERM,
10861 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10862 NL80211_FLAG_NEED_RTNL,
10863 },
3713b4e3
JB		 10864 {
10865 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10866 .doit = nl80211_get_protocol_features,
10867 .policy = nl80211_policy,
10868 },
355199e0
JM		 10869 {
10870 .cmd = NL80211_CMD_UPDATE_FT_IES,
10871 .doit = nl80211_update_ft_ies,
10872 .policy = nl80211_policy,
10873 .flags = GENL_ADMIN_PERM,
10874 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10875 NL80211_FLAG_NEED_RTNL,
10876 },
5de17984
AS		 10877 {
10878 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10879 .doit = nl80211_crit_protocol_start,
10880 .policy = nl80211_policy,
10881 .flags = GENL_ADMIN_PERM,
10882 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10883 NL80211_FLAG_NEED_RTNL,
10884 },
10885 {
10886 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10887 .doit = nl80211_crit_protocol_stop,
10888 .policy = nl80211_policy,
10889 .flags = GENL_ADMIN_PERM,
10890 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10891 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10892 },
10893 {
10894 .cmd = NL80211_CMD_GET_COALESCE,
10895 .doit = nl80211_get_coalesce,
10896 .policy = nl80211_policy,
10897 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10898 NL80211_FLAG_NEED_RTNL,
10899 },
10900 {
10901 .cmd = NL80211_CMD_SET_COALESCE,
10902 .doit = nl80211_set_coalesce,
10903 .policy = nl80211_policy,
10904 .flags = GENL_ADMIN_PERM,
10905 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10906 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10907 },
10908 {
10909 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10910 .doit = nl80211_channel_switch,
10911 .policy = nl80211_policy,
10912 .flags = GENL_ADMIN_PERM,
10913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10914 NL80211_FLAG_NEED_RTNL,
10915 },
ad7e718c
JB		 10916 {
10917 .cmd = NL80211_CMD_VENDOR,
10918 .doit = nl80211_vendor_cmd,
10919 .policy = nl80211_policy,
10920 .flags = GENL_ADMIN_PERM,
10921 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10922 NL80211_FLAG_NEED_RTNL,
10923 },
fa9ffc74
KP		 10924 {
10925 .cmd = NL80211_CMD_SET_QOS_MAP,
10926 .doit = nl80211_set_qos_map,
10927 .policy = nl80211_policy,
10928 .flags = GENL_ADMIN_PERM,
10929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10930 NL80211_FLAG_NEED_RTNL,
10931 },
960d01ac
JB		 10932 {
10933 .cmd = NL80211_CMD_ADD_TX_TS,
10934 .doit = nl80211_add_tx_ts,
10935 .policy = nl80211_policy,
10936 .flags = GENL_ADMIN_PERM,
10937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10938 NL80211_FLAG_NEED_RTNL,
10939 },
10940 {
10941 .cmd = NL80211_CMD_DEL_TX_TS,
10942 .doit = nl80211_del_tx_ts,
10943 .policy = nl80211_policy,
10944 .flags = GENL_ADMIN_PERM,
10945 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10946 NL80211_FLAG_NEED_RTNL,
10947 },
1057d35e
AN		 10948 {
10949 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10950 .doit = nl80211_tdls_channel_switch,
10951 .policy = nl80211_policy,
10952 .flags = GENL_ADMIN_PERM,
10953 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10954 NL80211_FLAG_NEED_RTNL,
10955 },
10956 {
10957 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10958 .doit = nl80211_tdls_cancel_channel_switch,
10959 .policy = nl80211_policy,
10960 .flags = GENL_ADMIN_PERM,
10961 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10962 NL80211_FLAG_NEED_RTNL,
10963 },
55682965 10964};
9588bbd5 10965
55682965
JB		 10966/* notification functions */
10967
3bb20556
JB		 10968void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10969 enum nl80211_commands cmd)
55682965
JB		 10970{
10971 struct sk_buff *msg;
86e8cf98 10972 struct nl80211_dump_wiphy_state state = {};
55682965 10973
3bb20556
JB		 10974 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10975 cmd != NL80211_CMD_DEL_WIPHY);
10976
fd2120ca 10977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10978 if (!msg)
10979 return;
10980
3bb20556 10981 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10982 nlmsg_free(msg);
10983 return;
10984 }
10985
68eb5503 10986 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10987 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10988}
10989
362a415d
JB		 10990static int nl80211_add_scan_req(struct sk_buff *msg,
10991 struct cfg80211_registered_device *rdev)
10992{
10993 struct cfg80211_scan_request *req = rdev->scan_req;
10994 struct nlattr *nest;
10995 int i;
10996
10997 if (WARN_ON(!req))
10998 return 0;
10999
11000 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11001 if (!nest)
11002 goto nla_put_failure;
9360ffd1
DM		 11003 for (i = 0; i < req->n_ssids; i++) {
11004 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11005 goto nla_put_failure;
11006 }
362a415d
JB		 11007 nla_nest_end(msg, nest);
11008
11009 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11010 if (!nest)
11011 goto nla_put_failure;
9360ffd1
DM		 11012 for (i = 0; i < req->n_channels; i++) {
11013 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11014 goto nla_put_failure;
11015 }
362a415d
JB		 11016 nla_nest_end(msg, nest);
11017
9360ffd1
DM		 11018 if (req->ie &&
11019 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11020 goto nla_put_failure;
362a415d 11021
ae917c9f
JB		 11022 if (req->flags &&
11023 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11024 goto nla_put_failure;
ed473771 11025
362a415d
JB		 11026 return 0;
11027 nla_put_failure:
11028 return -ENOBUFS;
11029}
11030
a538e2d5
JB		 11031static int nl80211_send_scan_msg(struct sk_buff *msg,
11032 struct cfg80211_registered_device *rdev,
fd014284 11033 struct wireless_dev *wdev,
15e47304 11034 u32 portid, u32 seq, int flags,
a538e2d5 11035 u32 cmd)
2a519311
JB		 11036{
11037 void *hdr;
11038
15e47304 11039 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11040 if (!hdr)
11041 return -1;
11042
9360ffd1 11043 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11044 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11045 wdev->netdev->ifindex)) ||
11046 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11047 goto nla_put_failure;
2a519311 11048
362a415d
JB		 11049 /* ignore errors and send incomplete event anyway */
11050 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 11051
11052 return genlmsg_end(msg, hdr);
11053
11054 nla_put_failure:
11055 genlmsg_cancel(msg, hdr);
11056 return -EMSGSIZE;
11057}
11058
807f8a8c
LC		 11059static int
11060nl80211_send_sched_scan_msg(struct sk_buff *msg,
11061 struct cfg80211_registered_device *rdev,
11062 struct net_device *netdev,
15e47304 11063 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11064{
11065 void *hdr;
11066
15e47304 11067 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11068 if (!hdr)
11069 return -1;
11070
9360ffd1
DM		 11071 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11072 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11073 goto nla_put_failure;
807f8a8c
LC		 11074
11075 return genlmsg_end(msg, hdr);
11076
11077 nla_put_failure:
11078 genlmsg_cancel(msg, hdr);
11079 return -EMSGSIZE;
11080}
11081
a538e2d5 11082void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11083 struct wireless_dev *wdev)
a538e2d5
JB		 11084{
11085 struct sk_buff *msg;
11086
58050fce 11087 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11088 if (!msg)
11089 return;
11090
fd014284 11091 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11092 NL80211_CMD_TRIGGER_SCAN) < 0) {
11093 nlmsg_free(msg);
11094 return;
11095 }
11096
68eb5503 11097 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11098 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11099}
11100
f9d15d16
JB		 11101struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11102 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11103{
11104 struct sk_buff *msg;
11105
fd2120ca 11106 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11107 if (!msg)
f9d15d16 11108 return NULL;
2a519311 11109
fd014284 11110 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11111 aborted ? NL80211_CMD_SCAN_ABORTED :
11112 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11113 nlmsg_free(msg);
f9d15d16 11114 return NULL;
2a519311
JB		 11115 }
11116
f9d15d16 11117 return msg;
2a519311
JB		 11118}
11119
f9d15d16
JB		 11120void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11121 struct sk_buff *msg)
2a519311 11122{
2a519311
JB		 11123 if (!msg)
11124 return;
11125
68eb5503 11126 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11127 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11128}
11129
807f8a8c
LC		 11130void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11131 struct net_device *netdev)
11132{
11133 struct sk_buff *msg;
11134
11135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11136 if (!msg)
11137 return;
11138
11139 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11140 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11141 nlmsg_free(msg);
11142 return;
11143 }
11144
68eb5503 11145 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11146 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11147}
11148
11149void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11150 struct net_device *netdev, u32 cmd)
11151{
11152 struct sk_buff *msg;
11153
58050fce 11154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11155 if (!msg)
11156 return;
11157
11158 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11159 nlmsg_free(msg);
11160 return;
11161 }
11162
68eb5503 11163 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11164 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11165}
11166
b0d7aa59
JD		 11167static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11168 struct regulatory_request *request)
73d54c9e 11169{
73d54c9e 11170 /* Userspace can always count this one always being set */
9360ffd1
DM		 11171 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11172 goto nla_put_failure;
11173
11174 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11175 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11176 NL80211_REGDOM_TYPE_WORLD))
11177 goto nla_put_failure;
11178 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11179 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11180 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11181 goto nla_put_failure;
11182 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11183 request->intersect) {
11184 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11185 NL80211_REGDOM_TYPE_INTERSECTION))
11186 goto nla_put_failure;
11187 } else {
11188 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11189 NL80211_REGDOM_TYPE_COUNTRY) ||
11190 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11191 request->alpha2))
11192 goto nla_put_failure;
11193 }
11194
ad30ca2c
AN		 11195 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11196 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11197
11198 if (wiphy &&
11199 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11200 goto nla_put_failure;
1bdd716c
AN		 11201
11202 if (wiphy &&
11203 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11204 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11205 goto nla_put_failure;
ad30ca2c 11206 }
73d54c9e 11207
b0d7aa59
JD		 11208 return true;
11209
11210nla_put_failure:
11211 return false;
11212}
11213
11214/*
11215 * This can happen on global regulatory changes or device specific settings
11216 * based on custom regulatory domains.
11217 */
11218void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11219 struct regulatory_request *request)
11220{
11221 struct sk_buff *msg;
11222 void *hdr;
11223
11224 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11225 if (!msg)
11226 return;
11227
11228 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11229 if (!hdr) {
11230 nlmsg_free(msg);
11231 return;
11232 }
11233
11234 if (nl80211_reg_change_event_fill(msg, request) == false)
11235 goto nla_put_failure;
11236
3b7b72ee 11237 genlmsg_end(msg, hdr);
73d54c9e 11238
bc43b28c 11239 rcu_read_lock();
68eb5503 11240 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11241 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11242 rcu_read_unlock();
73d54c9e
LR		 11243
11244 return;
11245
11246nla_put_failure:
11247 genlmsg_cancel(msg, hdr);
11248 nlmsg_free(msg);
11249}
11250
6039f6d2
JM		 11251static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11252 struct net_device *netdev,
11253 const u8 *buf, size_t len,
b0b6aa2c
EP		 11254 enum nl80211_commands cmd, gfp_t gfp,
11255 int uapsd_queues)
6039f6d2
JM		 11256{
11257 struct sk_buff *msg;
11258 void *hdr;
11259
e6d6e342 11260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11261 if (!msg)
11262 return;
11263
11264 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11265 if (!hdr) {
11266 nlmsg_free(msg);
11267 return;
11268 }
11269
9360ffd1
DM		 11270 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11271 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11272 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11273 goto nla_put_failure;
6039f6d2 11274
b0b6aa2c
EP		 11275 if (uapsd_queues >= 0) {
11276 struct nlattr *nla_wmm =
11277 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11278 if (!nla_wmm)
11279 goto nla_put_failure;
11280
11281 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11282 uapsd_queues))
11283 goto nla_put_failure;
11284
11285 nla_nest_end(msg, nla_wmm);
11286 }
11287
3b7b72ee 11288 genlmsg_end(msg, hdr);
6039f6d2 11289
68eb5503 11290 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11291 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11292 return;
11293
11294 nla_put_failure:
11295 genlmsg_cancel(msg, hdr);
11296 nlmsg_free(msg);
11297}
11298
11299void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11300 struct net_device *netdev, const u8 *buf,
11301 size_t len, gfp_t gfp)
6039f6d2
JM		 11302{
11303 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11304 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11305}
11306
11307void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11308 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11309 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11310{
e6d6e342 11311 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11312 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11313}
11314
53b46b84 11315void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11316 struct net_device *netdev, const u8 *buf,
11317 size_t len, gfp_t gfp)
6039f6d2
JM		 11318{
11319 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11320 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11321}
11322
53b46b84
JM		 11323void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11324 struct net_device *netdev, const u8 *buf,
e6d6e342 11325 size_t len, gfp_t gfp)
6039f6d2
JM		 11326{
11327 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11328 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11329}
11330
6ff57cf8
JB		 11331void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11332 size_t len)
cf4e594e 11333{
947add36
JB		 11334 struct wireless_dev *wdev = dev->ieee80211_ptr;
11335 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11336 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11337 const struct ieee80211_mgmt *mgmt = (void *)buf;
11338 u32 cmd;
947add36 11339
6ff57cf8
JB		 11340 if (WARN_ON(len < 2))
11341 return;
cf4e594e 11342
6ff57cf8
JB		 11343 if (ieee80211_is_deauth(mgmt->frame_control))
11344 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11345 else
11346 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11347
6ff57cf8 11348 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11349 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11350}
6ff57cf8 11351EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11352
1b06bb40
LR		 11353static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11354 struct net_device *netdev, int cmd,
e6d6e342 11355 const u8 *addr, gfp_t gfp)
1965c853
JM		 11356{
11357 struct sk_buff *msg;
11358 void *hdr;
11359
e6d6e342 11360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11361 if (!msg)
11362 return;
11363
11364 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11365 if (!hdr) {
11366 nlmsg_free(msg);
11367 return;
11368 }
11369
9360ffd1
DM		 11370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11372 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11373 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11374 goto nla_put_failure;
1965c853 11375
3b7b72ee 11376 genlmsg_end(msg, hdr);
1965c853 11377
68eb5503 11378 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11379 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11380 return;
11381
11382 nla_put_failure:
11383 genlmsg_cancel(msg, hdr);
11384 nlmsg_free(msg);
11385}
11386
11387void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11388 struct net_device *netdev, const u8 *addr,
11389 gfp_t gfp)
1965c853
JM		 11390{
11391 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11392 addr, gfp);
1965c853
JM		 11393}
11394
11395void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11396 struct net_device *netdev, const u8 *addr,
11397 gfp_t gfp)
1965c853 11398{
e6d6e342
JB		 11399 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11400 addr, gfp);
1965c853
JM		 11401}
11402
b23aa676
SO		 11403void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11404 struct net_device *netdev, const u8 *bssid,
11405 const u8 *req_ie, size_t req_ie_len,
11406 const u8 *resp_ie, size_t resp_ie_len,
11407 u16 status, gfp_t gfp)
11408{
11409 struct sk_buff *msg;
11410 void *hdr;
11411
58050fce 11412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11413 if (!msg)
11414 return;
11415
11416 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11417 if (!hdr) {
11418 nlmsg_free(msg);
11419 return;
11420 }
11421
9360ffd1
DM		 11422 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11423 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11424 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11425 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11426 (req_ie &&
11427 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11428 (resp_ie &&
11429 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11430 goto nla_put_failure;
b23aa676 11431
3b7b72ee 11432 genlmsg_end(msg, hdr);
b23aa676 11433
68eb5503 11434 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11435 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11436 return;
11437
11438 nla_put_failure:
11439 genlmsg_cancel(msg, hdr);
11440 nlmsg_free(msg);
11441
11442}
11443
11444void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11445 struct net_device *netdev, const u8 *bssid,
11446 const u8 *req_ie, size_t req_ie_len,
11447 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11448{
11449 struct sk_buff *msg;
11450 void *hdr;
11451
58050fce 11452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11453 if (!msg)
11454 return;
11455
11456 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11457 if (!hdr) {
11458 nlmsg_free(msg);
11459 return;
11460 }
11461
9360ffd1
DM		 11462 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11463 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11464 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11465 (req_ie &&
11466 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11467 (resp_ie &&
11468 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11469 goto nla_put_failure;
b23aa676 11470
3b7b72ee 11471 genlmsg_end(msg, hdr);
b23aa676 11472
68eb5503 11473 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11474 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11475 return;
11476
11477 nla_put_failure:
11478 genlmsg_cancel(msg, hdr);
11479 nlmsg_free(msg);
11480
11481}
11482
11483void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11484 struct net_device *netdev, u16 reason,
667503dd 11485 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11486{
11487 struct sk_buff *msg;
11488 void *hdr;
11489
58050fce 11490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11491 if (!msg)
11492 return;
11493
11494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11495 if (!hdr) {
11496 nlmsg_free(msg);
11497 return;
11498 }
11499
9360ffd1
DM		 11500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11502 (from_ap && reason &&
11503 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11504 (from_ap &&
11505 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11506 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11507 goto nla_put_failure;
b23aa676 11508
3b7b72ee 11509 genlmsg_end(msg, hdr);
b23aa676 11510
68eb5503 11511 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11512 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11513 return;
11514
11515 nla_put_failure:
11516 genlmsg_cancel(msg, hdr);
11517 nlmsg_free(msg);
11518
11519}
11520
04a773ad
JB		 11521void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11522 struct net_device *netdev, const u8 *bssid,
11523 gfp_t gfp)
11524{
11525 struct sk_buff *msg;
11526 void *hdr;
11527
fd2120ca 11528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11529 if (!msg)
11530 return;
11531
11532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11533 if (!hdr) {
11534 nlmsg_free(msg);
11535 return;
11536 }
11537
9360ffd1
DM		 11538 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11539 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11540 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11541 goto nla_put_failure;
04a773ad 11542
3b7b72ee 11543 genlmsg_end(msg, hdr);
04a773ad 11544
68eb5503 11545 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11546 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11547 return;
11548
11549 nla_put_failure:
11550 genlmsg_cancel(msg, hdr);
11551 nlmsg_free(msg);
11552}
11553
947add36
JB		 11554void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11555 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11556{
947add36 11557 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11558 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11559 struct sk_buff *msg;
11560 void *hdr;
11561
947add36
JB		 11562 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11563 return;
11564
11565 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11566
c93b5e71
JC		 11567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11568 if (!msg)
11569 return;
11570
11571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11572 if (!hdr) {
11573 nlmsg_free(msg);
11574 return;
11575 }
11576
9360ffd1 11577 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11578 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11579 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11580 (ie_len && ie &&
11581 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11582 goto nla_put_failure;
c93b5e71 11583
3b7b72ee 11584 genlmsg_end(msg, hdr);
c93b5e71 11585
68eb5503 11586 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11587 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11588 return;
11589
11590 nla_put_failure:
11591 genlmsg_cancel(msg, hdr);
11592 nlmsg_free(msg);
11593}
947add36 11594EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11595
a3b8b056
JM		 11596void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11597 struct net_device *netdev, const u8 *addr,
11598 enum nl80211_key_type key_type, int key_id,
e6d6e342 11599 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11600{
11601 struct sk_buff *msg;
11602 void *hdr;
11603
e6d6e342 11604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11605 if (!msg)
11606 return;
11607
11608 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11609 if (!hdr) {
11610 nlmsg_free(msg);
11611 return;
11612 }
11613
9360ffd1
DM		 11614 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11615 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11616 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11617 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11618 (key_id != -1 &&
11619 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11620 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11621 goto nla_put_failure;
a3b8b056 11622
3b7b72ee 11623 genlmsg_end(msg, hdr);
a3b8b056 11624
68eb5503 11625 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11626 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11627 return;
11628
11629 nla_put_failure:
11630 genlmsg_cancel(msg, hdr);
11631 nlmsg_free(msg);
11632}
11633
6bad8766
LR		 11634void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11635 struct ieee80211_channel *channel_before,
11636 struct ieee80211_channel *channel_after)
11637{
11638 struct sk_buff *msg;
11639 void *hdr;
11640 struct nlattr *nl_freq;
11641
fd2120ca 11642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11643 if (!msg)
11644 return;
11645
11646 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11647 if (!hdr) {
11648 nlmsg_free(msg);
11649 return;
11650 }
11651
11652 /*
11653 * Since we are applying the beacon hint to a wiphy we know its
11654 * wiphy_idx is valid
11655 */
9360ffd1
DM		 11656 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11657 goto nla_put_failure;
6bad8766
LR		 11658
11659 /* Before */
11660 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11661 if (!nl_freq)
11662 goto nla_put_failure;
cdc89b97 11663 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11664 goto nla_put_failure;
11665 nla_nest_end(msg, nl_freq);
11666
11667 /* After */
11668 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11669 if (!nl_freq)
11670 goto nla_put_failure;
cdc89b97 11671 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11672 goto nla_put_failure;
11673 nla_nest_end(msg, nl_freq);
11674
3b7b72ee 11675 genlmsg_end(msg, hdr);
6bad8766 11676
463d0183 11677 rcu_read_lock();
68eb5503 11678 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11679 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11680 rcu_read_unlock();
6bad8766
LR		 11681
11682 return;
11683
11684nla_put_failure:
11685 genlmsg_cancel(msg, hdr);
11686 nlmsg_free(msg);
11687}
11688
9588bbd5
JM		 11689static void nl80211_send_remain_on_chan_event(
11690 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11691 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11692 struct ieee80211_channel *chan,
9588bbd5
JM		 11693 unsigned int duration, gfp_t gfp)
11694{
11695 struct sk_buff *msg;
11696 void *hdr;
11697
11698 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11699 if (!msg)
11700 return;
11701
11702 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11703 if (!hdr) {
11704 nlmsg_free(msg);
11705 return;
11706 }
11707
9360ffd1 11708 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11709 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11710 wdev->netdev->ifindex)) ||
00f53350 11711 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11712 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11713 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11714 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11715 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11716 goto nla_put_failure;
9588bbd5 11717
9360ffd1
DM		 11718 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11719 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11720 goto nla_put_failure;
9588bbd5 11721
3b7b72ee 11722 genlmsg_end(msg, hdr);
9588bbd5 11723
68eb5503 11724 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11725 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11726 return;
11727
11728 nla_put_failure:
11729 genlmsg_cancel(msg, hdr);
11730 nlmsg_free(msg);
11731}
11732
947add36
JB		 11733void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11734 struct ieee80211_channel *chan,
11735 unsigned int duration, gfp_t gfp)
9588bbd5 11736{
947add36 11737 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11738 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11739
11740 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11741 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11742 rdev, wdev, cookie, chan,
42d97a59 11743 duration, gfp);
9588bbd5 11744}
947add36 11745EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11746
947add36
JB		 11747void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11748 struct ieee80211_channel *chan,
11749 gfp_t gfp)
9588bbd5 11750{
947add36 11751 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11752 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11753
11754 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11755 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11756 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11757}
947add36 11758EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11759
947add36
JB		 11760void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11761 struct station_info *sinfo, gfp_t gfp)
98b62183 11762{
947add36 11763 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11764 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11765 struct sk_buff *msg;
11766
947add36
JB		 11767 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11768
58050fce 11769 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11770 if (!msg)
11771 return;
11772
cf5ead82 11773 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 11774 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11775 nlmsg_free(msg);
11776 return;
11777 }
11778
68eb5503 11779 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11780 NL80211_MCGRP_MLME, gfp);
98b62183 11781}
947add36 11782EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11783
cf5ead82
JB		 11784void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11785 struct station_info *sinfo, gfp_t gfp)
ec15e68b 11786{
947add36 11787 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11788 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 11789 struct sk_buff *msg;
cf5ead82
JB		 11790 struct station_info empty_sinfo = {};
11791
11792 if (!sinfo)
11793 sinfo = &empty_sinfo;
ec15e68b 11794
947add36
JB		 11795 trace_cfg80211_del_sta(dev, mac_addr);
11796
58050fce 11797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11798 if (!msg)
11799 return;
11800
cf5ead82 11801 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 11802 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 11803 nlmsg_free(msg);
11804 return;
11805 }
11806
68eb5503 11807 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11808 NL80211_MCGRP_MLME, gfp);
ec15e68b 11809}
cf5ead82 11810EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 11811
947add36
JB		 11812void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11813 enum nl80211_connect_failed_reason reason,
11814 gfp_t gfp)
ed44a951 11815{
947add36 11816 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11817 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11818 struct sk_buff *msg;
11819 void *hdr;
11820
11821 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11822 if (!msg)
11823 return;
11824
11825 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11826 if (!hdr) {
11827 nlmsg_free(msg);
11828 return;
11829 }
11830
11831 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11832 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11833 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11834 goto nla_put_failure;
11835
11836 genlmsg_end(msg, hdr);
11837
68eb5503 11838 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11839 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11840 return;
11841
11842 nla_put_failure:
11843 genlmsg_cancel(msg, hdr);
11844 nlmsg_free(msg);
11845}
947add36 11846EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11847
b92ab5d8
JB		 11848static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11849 const u8 *addr, gfp_t gfp)
28946da7
JB		 11850{
11851 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11852 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11853 struct sk_buff *msg;
11854 void *hdr;
15e47304 11855 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11856
15e47304 11857 if (!nlportid)
28946da7
JB		 11858 return false;
11859
11860 msg = nlmsg_new(100, gfp);
11861 if (!msg)
11862 return true;
11863
b92ab5d8 11864 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11865 if (!hdr) {
11866 nlmsg_free(msg);
11867 return true;
11868 }
11869
9360ffd1
DM		 11870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11871 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11873 goto nla_put_failure;
28946da7 11874
9c90a9f6 11875 genlmsg_end(msg, hdr);
15e47304 11876 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11877 return true;
11878
11879 nla_put_failure:
11880 genlmsg_cancel(msg, hdr);
11881 nlmsg_free(msg);
11882 return true;
11883}
11884
947add36
JB		 11885bool cfg80211_rx_spurious_frame(struct net_device *dev,
11886 const u8 *addr, gfp_t gfp)
b92ab5d8 11887{
947add36
JB		 11888 struct wireless_dev *wdev = dev->ieee80211_ptr;
11889 bool ret;
11890
11891 trace_cfg80211_rx_spurious_frame(dev, addr);
11892
11893 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11894 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11895 trace_cfg80211_return_bool(false);
11896 return false;
11897 }
11898 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11899 addr, gfp);
11900 trace_cfg80211_return_bool(ret);
11901 return ret;
b92ab5d8 11902}
947add36 11903EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11904
947add36
JB		 11905bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11906 const u8 *addr, gfp_t gfp)
b92ab5d8 11907{
947add36
JB		 11908 struct wireless_dev *wdev = dev->ieee80211_ptr;
11909 bool ret;
11910
11911 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11912
11913 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11914 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11915 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11916 trace_cfg80211_return_bool(false);
11917 return false;
11918 }
11919 ret = __nl80211_unexpected_frame(dev,
11920 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11921 addr, gfp);
11922 trace_cfg80211_return_bool(ret);
11923 return ret;
b92ab5d8 11924}
947add36 11925EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11926
2e161f78 11927int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11928 struct wireless_dev *wdev, u32 nlportid,
804483e9 11929 int freq, int sig_dbm,
19504cf5 11930 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11931{
71bbc994 11932 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11933 struct sk_buff *msg;
11934 void *hdr;
026331c4
JM		 11935
11936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11937 if (!msg)
11938 return -ENOMEM;
11939
2e161f78 11940 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11941 if (!hdr) {
11942 nlmsg_free(msg);
11943 return -ENOMEM;
11944 }
11945
9360ffd1 11946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11947 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11948 netdev->ifindex)) ||
a838490b 11949 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11950 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11951 (sig_dbm &&
11952 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11953 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11954 (flags &&
11955 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11956 goto nla_put_failure;
026331c4 11957
3b7b72ee 11958 genlmsg_end(msg, hdr);
026331c4 11959
15e47304 11960 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11961
11962 nla_put_failure:
11963 genlmsg_cancel(msg, hdr);
11964 nlmsg_free(msg);
11965 return -ENOBUFS;
11966}
11967
947add36
JB		 11968void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11969 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11970{
947add36 11971 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11972 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11973 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11974 struct sk_buff *msg;
11975 void *hdr;
11976
947add36
JB		 11977 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11978
026331c4
JM		 11979 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11980 if (!msg)
11981 return;
11982
2e161f78 11983 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11984 if (!hdr) {
11985 nlmsg_free(msg);
11986 return;
11987 }
11988
9360ffd1 11989 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11990 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11991 netdev->ifindex)) ||
a838490b 11992 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11993 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11994 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11995 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11996 goto nla_put_failure;
026331c4 11997
3b7b72ee 11998 genlmsg_end(msg, hdr);
026331c4 11999
68eb5503 12000 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12001 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12002 return;
12003
12004 nla_put_failure:
12005 genlmsg_cancel(msg, hdr);
12006 nlmsg_free(msg);
12007}
947add36 12008EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12009
5b97f49d
JB		 12010static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12011 const char *mac, gfp_t gfp)
d6dc1a38 12012{
947add36 12013 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12014 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12015 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12016 void **cb;
947add36 12017
d6dc1a38 12018 if (!msg)
5b97f49d 12019 return NULL;
d6dc1a38 12020
5b97f49d
JB		 12021 cb = (void **)msg->cb;
12022
12023 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12024 if (!cb[0]) {
d6dc1a38 12025 nlmsg_free(msg);
5b97f49d 12026 return NULL;
d6dc1a38
JO		 12027 }
12028
9360ffd1 12029 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12030 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12031 goto nla_put_failure;
d6dc1a38 12032
5b97f49d 12033 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12034 goto nla_put_failure;
12035
5b97f49d
JB		 12036 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12037 if (!cb[1])
9360ffd1 12038 goto nla_put_failure;
d6dc1a38 12039
5b97f49d 12040 cb[2] = rdev;
d6dc1a38 12041
5b97f49d
JB		 12042 return msg;
12043 nla_put_failure:
12044 nlmsg_free(msg);
12045 return NULL;
12046}
12047
12048static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12049{
12050 void **cb = (void **)msg->cb;
12051 struct cfg80211_registered_device *rdev = cb[2];
12052
12053 nla_nest_end(msg, cb[1]);
12054 genlmsg_end(msg, cb[0]);
12055
12056 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12057
68eb5503 12058 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12059 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12060}
12061
12062void cfg80211_cqm_rssi_notify(struct net_device *dev,
12063 enum nl80211_cqm_rssi_threshold_event rssi_event,
12064 gfp_t gfp)
12065{
12066 struct sk_buff *msg;
12067
12068 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12069
98f03342
JB		 12070 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12071 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12072 return;
12073
5b97f49d
JB		 12074 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12075 if (!msg)
12076 return;
12077
12078 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12079 rssi_event))
12080 goto nla_put_failure;
12081
12082 cfg80211_send_cqm(msg, gfp);
12083
d6dc1a38
JO		 12084 return;
12085
12086 nla_put_failure:
d6dc1a38
JO		 12087 nlmsg_free(msg);
12088}
947add36 12089EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12090
5b97f49d
JB		 12091void cfg80211_cqm_txe_notify(struct net_device *dev,
12092 const u8 *peer, u32 num_packets,
12093 u32 rate, u32 intvl, gfp_t gfp)
12094{
12095 struct sk_buff *msg;
12096
12097 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12098 if (!msg)
12099 return;
12100
12101 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12102 goto nla_put_failure;
12103
12104 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12105 goto nla_put_failure;
12106
12107 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12108 goto nla_put_failure;
12109
12110 cfg80211_send_cqm(msg, gfp);
12111 return;
12112
12113 nla_put_failure:
12114 nlmsg_free(msg);
12115}
12116EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12117
12118void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12119 const u8 *peer, u32 num_packets, gfp_t gfp)
12120{
12121 struct sk_buff *msg;
12122
12123 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12124
12125 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12126 if (!msg)
12127 return;
12128
12129 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12130 goto nla_put_failure;
12131
12132 cfg80211_send_cqm(msg, gfp);
12133 return;
12134
12135 nla_put_failure:
12136 nlmsg_free(msg);
12137}
12138EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12139
98f03342
JB		 12140void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12141{
12142 struct sk_buff *msg;
12143
12144 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12145 if (!msg)
12146 return;
12147
12148 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12149 goto nla_put_failure;
12150
12151 cfg80211_send_cqm(msg, gfp);
12152 return;
12153
12154 nla_put_failure:
12155 nlmsg_free(msg);
12156}
12157EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12158
947add36
JB		 12159static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12160 struct net_device *netdev, const u8 *bssid,
12161 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12162{
12163 struct sk_buff *msg;
12164 struct nlattr *rekey_attr;
12165 void *hdr;
12166
58050fce 12167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12168 if (!msg)
12169 return;
12170
12171 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12172 if (!hdr) {
12173 nlmsg_free(msg);
12174 return;
12175 }
12176
9360ffd1
DM		 12177 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12178 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12179 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12180 goto nla_put_failure;
e5497d76
JB		 12181
12182 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12183 if (!rekey_attr)
12184 goto nla_put_failure;
12185
9360ffd1
DM		 12186 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12187 NL80211_REPLAY_CTR_LEN, replay_ctr))
12188 goto nla_put_failure;
e5497d76
JB		 12189
12190 nla_nest_end(msg, rekey_attr);
12191
3b7b72ee 12192 genlmsg_end(msg, hdr);
e5497d76 12193
68eb5503 12194 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12195 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12196 return;
12197
12198 nla_put_failure:
12199 genlmsg_cancel(msg, hdr);
12200 nlmsg_free(msg);
12201}
12202
947add36
JB		 12203void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12204 const u8 *replay_ctr, gfp_t gfp)
12205{
12206 struct wireless_dev *wdev = dev->ieee80211_ptr;
12207 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12208 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12209
12210 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12211 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12212}
12213EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12214
12215static void
12216nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12217 struct net_device *netdev, int index,
12218 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12219{
12220 struct sk_buff *msg;
12221 struct nlattr *attr;
12222 void *hdr;
12223
58050fce 12224 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12225 if (!msg)
12226 return;
12227
12228 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12229 if (!hdr) {
12230 nlmsg_free(msg);
12231 return;
12232 }
12233
9360ffd1
DM		 12234 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12235 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12236 goto nla_put_failure;
c9df56b4
JM		 12237
12238 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12239 if (!attr)
12240 goto nla_put_failure;
12241
9360ffd1
DM		 12242 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12243 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12244 (preauth &&
12245 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12246 goto nla_put_failure;
c9df56b4
JM		 12247
12248 nla_nest_end(msg, attr);
12249
3b7b72ee 12250 genlmsg_end(msg, hdr);
c9df56b4 12251
68eb5503 12252 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12253 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12254 return;
12255
12256 nla_put_failure:
12257 genlmsg_cancel(msg, hdr);
12258 nlmsg_free(msg);
12259}
12260
947add36
JB		 12261void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12262 const u8 *bssid, bool preauth, gfp_t gfp)
12263{
12264 struct wireless_dev *wdev = dev->ieee80211_ptr;
12265 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12266 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12267
12268 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12269 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12270}
12271EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12272
12273static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12274 struct net_device *netdev,
12275 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12276 gfp_t gfp,
12277 enum nl80211_commands notif,
12278 u8 count)
5314526b
TP		 12279{
12280 struct sk_buff *msg;
12281 void *hdr;
12282
58050fce 12283 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12284 if (!msg)
12285 return;
12286
f8d7552e 12287 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12288 if (!hdr) {
12289 nlmsg_free(msg);
12290 return;
12291 }
12292
683b6d3b
JB		 12293 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12294 goto nla_put_failure;
12295
12296 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12297 goto nla_put_failure;
5314526b 12298
f8d7552e
LC		 12299 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12300 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12301 goto nla_put_failure;
12302
5314526b
TP		 12303 genlmsg_end(msg, hdr);
12304
68eb5503 12305 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12306 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12307 return;
12308
12309 nla_put_failure:
12310 genlmsg_cancel(msg, hdr);
12311 nlmsg_free(msg);
12312}
12313
947add36
JB		 12314void cfg80211_ch_switch_notify(struct net_device *dev,
12315 struct cfg80211_chan_def *chandef)
84f10708 12316{
947add36
JB		 12317 struct wireless_dev *wdev = dev->ieee80211_ptr;
12318 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12319 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12320
e487eaeb 12321 ASSERT_WDEV_LOCK(wdev);
947add36 12322
e487eaeb 12323 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12324
9e0e2961 12325 wdev->chandef = *chandef;
96f55f12 12326 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12327 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12328 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12329}
12330EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12331
f8d7552e
LC		 12332void cfg80211_ch_switch_started_notify(struct net_device *dev,
12333 struct cfg80211_chan_def *chandef,
12334 u8 count)
12335{
12336 struct wireless_dev *wdev = dev->ieee80211_ptr;
12337 struct wiphy *wiphy = wdev->wiphy;
12338 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12339
12340 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12341
12342 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12343 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12344}
12345EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12346
04f39047
SW		 12347void
12348nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12349 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12350 enum nl80211_radar_event event,
12351 struct net_device *netdev, gfp_t gfp)
12352{
12353 struct sk_buff *msg;
12354 void *hdr;
12355
12356 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12357 if (!msg)
12358 return;
12359
12360 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12361 if (!hdr) {
12362 nlmsg_free(msg);
12363 return;
12364 }
12365
12366 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12367 goto nla_put_failure;
12368
12369 /* NOP and radar events don't need a netdev parameter */
12370 if (netdev) {
12371 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12372
12373 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12374 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12375 goto nla_put_failure;
12376 }
12377
12378 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12379 goto nla_put_failure;
12380
12381 if (nl80211_send_chandef(msg, chandef))
12382 goto nla_put_failure;
12383
9c90a9f6 12384 genlmsg_end(msg, hdr);
04f39047 12385
68eb5503 12386 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12387 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12388 return;
12389
12390 nla_put_failure:
12391 genlmsg_cancel(msg, hdr);
12392 nlmsg_free(msg);
12393}
12394
7f6cf311
JB		 12395void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12396 u64 cookie, bool acked, gfp_t gfp)
12397{
12398 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12400 struct sk_buff *msg;
12401 void *hdr;
7f6cf311 12402
4ee3e063
BL		 12403 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12404
58050fce 12405 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12406
7f6cf311
JB		 12407 if (!msg)
12408 return;
12409
12410 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12411 if (!hdr) {
12412 nlmsg_free(msg);
12413 return;
12414 }
12415
9360ffd1
DM		 12416 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12417 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12418 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12419 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12420 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12421 goto nla_put_failure;
7f6cf311 12422
9c90a9f6 12423 genlmsg_end(msg, hdr);
7f6cf311 12424
68eb5503 12425 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12426 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12427 return;
12428
12429 nla_put_failure:
12430 genlmsg_cancel(msg, hdr);
12431 nlmsg_free(msg);
12432}
12433EXPORT_SYMBOL(cfg80211_probe_status);
12434
5e760230
JB		 12435void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12436 const u8 *frame, size_t len,
37c73b5f 12437 int freq, int sig_dbm)
5e760230 12438{
f26cbf40 12439 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12440 struct sk_buff *msg;
12441 void *hdr;
37c73b5f 12442 struct cfg80211_beacon_registration *reg;
5e760230 12443
4ee3e063
BL		 12444 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12445
37c73b5f
BG		 12446 spin_lock_bh(&rdev->beacon_registrations_lock);
12447 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12448 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12449 if (!msg) {
12450 spin_unlock_bh(&rdev->beacon_registrations_lock);
12451 return;
12452 }
5e760230 12453
37c73b5f
BG		 12454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12455 if (!hdr)
12456 goto nla_put_failure;
5e760230 12457
37c73b5f
BG		 12458 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12459 (freq &&
12460 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12461 (sig_dbm &&
12462 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12463 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12464 goto nla_put_failure;
5e760230 12465
37c73b5f 12466 genlmsg_end(msg, hdr);
5e760230 12467
37c73b5f
BG		 12468 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12469 }
12470 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12471 return;
12472
12473 nla_put_failure:
37c73b5f
BG		 12474 spin_unlock_bh(&rdev->beacon_registrations_lock);
12475 if (hdr)
12476 genlmsg_cancel(msg, hdr);
5e760230
JB		 12477 nlmsg_free(msg);
12478}
12479EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12480
cd8f7cb4 12481#ifdef CONFIG_PM
8cd4d456
LC		 12482static int cfg80211_net_detect_results(struct sk_buff *msg,
12483 struct cfg80211_wowlan_wakeup *wakeup)
12484{
12485 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12486 struct nlattr *nl_results, *nl_match, *nl_freqs;
12487 int i, j;
12488
12489 nl_results = nla_nest_start(
12490 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12491 if (!nl_results)
12492 return -EMSGSIZE;
12493
12494 for (i = 0; i < nd->n_matches; i++) {
12495 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12496
12497 nl_match = nla_nest_start(msg, i);
12498 if (!nl_match)
12499 break;
12500
12501 /* The SSID attribute is optional in nl80211, but for
12502 * simplicity reasons it's always present in the
12503 * cfg80211 structure. If a driver can't pass the
12504 * SSID, that needs to be changed. A zero length SSID
12505 * is still a valid SSID (wildcard), so it cannot be
12506 * used for this purpose.
12507 */
12508 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12509 match->ssid.ssid)) {
12510 nla_nest_cancel(msg, nl_match);
12511 goto out;
12512 }
12513
12514 if (match->n_channels) {
12515 nl_freqs = nla_nest_start(
12516 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12517 if (!nl_freqs) {
12518 nla_nest_cancel(msg, nl_match);
12519 goto out;
12520 }
12521
12522 for (j = 0; j < match->n_channels; j++) {
12523 if (nla_put_u32(msg,
12524 NL80211_ATTR_WIPHY_FREQ,
12525 match->channels[j])) {
12526 nla_nest_cancel(msg, nl_freqs);
12527 nla_nest_cancel(msg, nl_match);
12528 goto out;
12529 }
12530 }
12531
12532 nla_nest_end(msg, nl_freqs);
12533 }
12534
12535 nla_nest_end(msg, nl_match);
12536 }
12537
12538out:
12539 nla_nest_end(msg, nl_results);
12540 return 0;
12541}
12542
cd8f7cb4
JB		 12543void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12544 struct cfg80211_wowlan_wakeup *wakeup,
12545 gfp_t gfp)
12546{
f26cbf40 12547 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12548 struct sk_buff *msg;
12549 void *hdr;
9c90a9f6 12550 int size = 200;
cd8f7cb4
JB		 12551
12552 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12553
12554 if (wakeup)
12555 size += wakeup->packet_present_len;
12556
12557 msg = nlmsg_new(size, gfp);
12558 if (!msg)
12559 return;
12560
12561 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12562 if (!hdr)
12563 goto free_msg;
12564
12565 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12566 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12567 goto free_msg;
12568
12569 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12570 wdev->netdev->ifindex))
12571 goto free_msg;
12572
12573 if (wakeup) {
12574 struct nlattr *reasons;
12575
12576 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12577 if (!reasons)
12578 goto free_msg;
cd8f7cb4
JB		 12579
12580 if (wakeup->disconnect &&
12581 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12582 goto free_msg;
12583 if (wakeup->magic_pkt &&
12584 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12585 goto free_msg;
12586 if (wakeup->gtk_rekey_failure &&
12587 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12588 goto free_msg;
12589 if (wakeup->eap_identity_req &&
12590 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12591 goto free_msg;
12592 if (wakeup->four_way_handshake &&
12593 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12594 goto free_msg;
12595 if (wakeup->rfkill_release &&
12596 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12597 goto free_msg;
12598
12599 if (wakeup->pattern_idx >= 0 &&
12600 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12601 wakeup->pattern_idx))
12602 goto free_msg;
12603
ae917c9f
JB		 12604 if (wakeup->tcp_match &&
12605 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12606 goto free_msg;
2a0e047e 12607
ae917c9f
JB		 12608 if (wakeup->tcp_connlost &&
12609 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12610 goto free_msg;
2a0e047e 12611
ae917c9f
JB		 12612 if (wakeup->tcp_nomoretokens &&
12613 nla_put_flag(msg,
12614 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12615 goto free_msg;
2a0e047e 12616
cd8f7cb4
JB		 12617 if (wakeup->packet) {
12618 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12619 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12620
12621 if (!wakeup->packet_80211) {
12622 pkt_attr =
12623 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12624 len_attr =
12625 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12626 }
12627
12628 if (wakeup->packet_len &&
12629 nla_put_u32(msg, len_attr, wakeup->packet_len))
12630 goto free_msg;
12631
12632 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12633 wakeup->packet))
12634 goto free_msg;
12635 }
12636
8cd4d456
LC		 12637 if (wakeup->net_detect &&
12638 cfg80211_net_detect_results(msg, wakeup))
12639 goto free_msg;
12640
cd8f7cb4
JB		 12641 nla_nest_end(msg, reasons);
12642 }
12643
9c90a9f6 12644 genlmsg_end(msg, hdr);
cd8f7cb4 12645
68eb5503 12646 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12647 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12648 return;
12649
12650 free_msg:
12651 nlmsg_free(msg);
12652}
12653EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12654#endif
12655
3475b094
JM		 12656void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12657 enum nl80211_tdls_operation oper,
12658 u16 reason_code, gfp_t gfp)
12659{
12660 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12661 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12662 struct sk_buff *msg;
12663 void *hdr;
3475b094
JM		 12664
12665 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12666 reason_code);
12667
12668 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12669 if (!msg)
12670 return;
12671
12672 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12673 if (!hdr) {
12674 nlmsg_free(msg);
12675 return;
12676 }
12677
12678 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12679 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12680 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12681 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12682 (reason_code > 0 &&
12683 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12684 goto nla_put_failure;
12685
9c90a9f6 12686 genlmsg_end(msg, hdr);
3475b094 12687
68eb5503 12688 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12689 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12690 return;
12691
12692 nla_put_failure:
12693 genlmsg_cancel(msg, hdr);
12694 nlmsg_free(msg);
12695}
12696EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12697
026331c4
JM		 12698static int nl80211_netlink_notify(struct notifier_block * nb,
12699 unsigned long state,
12700 void *_notify)
12701{
12702 struct netlink_notify *notify = _notify;
12703 struct cfg80211_registered_device *rdev;
12704 struct wireless_dev *wdev;
37c73b5f 12705 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12706
12707 if (state != NETLINK_URELEASE)
12708 return NOTIFY_DONE;
12709
12710 rcu_read_lock();
12711
5e760230 12712 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12713 bool schedule_destroy_work = false;
93a1e86c
JR		 12714 bool schedule_scan_stop = false;
12715 struct cfg80211_sched_scan_request *sched_scan_req =
12716 rcu_dereference(rdev->sched_scan_req);
12717
12718 if (sched_scan_req && notify->portid &&
12719 sched_scan_req->owner_nlportid == notify->portid)
12720 schedule_scan_stop = true;
78f22b6a
JB		 12721
12722 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12723 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12724
78f22b6a
JB		 12725 if (wdev->owner_nlportid == notify->portid)
12726 schedule_destroy_work = true;
12727 }
12728
37c73b5f
BG		 12729 spin_lock_bh(&rdev->beacon_registrations_lock);
12730 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12731 list) {
12732 if (reg->nlportid == notify->portid) {
12733 list_del(&reg->list);
12734 kfree(reg);
12735 break;
12736 }
12737 }
12738 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12739
12740 if (schedule_destroy_work) {
12741 struct cfg80211_iface_destroy *destroy;
12742
12743 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12744 if (destroy) {
12745 destroy->nlportid = notify->portid;
12746 spin_lock(&rdev->destroy_list_lock);
12747 list_add(&destroy->list, &rdev->destroy_list);
12748 spin_unlock(&rdev->destroy_list_lock);
12749 schedule_work(&rdev->destroy_work);
12750 }
93a1e86c
JR		 12751 } else if (schedule_scan_stop) {
12752 sched_scan_req->owner_nlportid = 0;
12753
12754 if (rdev->ops->sched_scan_stop &&
12755 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12756 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12757 }
5e760230 12758 }
026331c4
JM		 12759
12760 rcu_read_unlock();
12761
6784c7db 12762 return NOTIFY_OK;
026331c4
JM		 12763}
12764
12765static struct notifier_block nl80211_netlink_notifier = {
12766 .notifier_call = nl80211_netlink_notify,
12767};
12768
355199e0
JM		 12769void cfg80211_ft_event(struct net_device *netdev,
12770 struct cfg80211_ft_event_params *ft_event)
12771{
12772 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12773 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12774 struct sk_buff *msg;
12775 void *hdr;
355199e0
JM		 12776
12777 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12778
12779 if (!ft_event->target_ap)
12780 return;
12781
12782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12783 if (!msg)
12784 return;
12785
12786 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12787 if (!hdr)
12788 goto out;
355199e0 12789
ae917c9f
JB		 12790 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12791 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12792 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12793 goto out;
355199e0 12794
ae917c9f
JB		 12795 if (ft_event->ies &&
12796 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12797 goto out;
12798 if (ft_event->ric_ies &&
12799 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12800 ft_event->ric_ies))
12801 goto out;
355199e0 12802
9c90a9f6 12803 genlmsg_end(msg, hdr);
355199e0 12804
68eb5503 12805 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12806 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12807 return;
12808 out:
12809 nlmsg_free(msg);
355199e0
JM		 12810}
12811EXPORT_SYMBOL(cfg80211_ft_event);
12812
5de17984
AS		 12813void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12814{
12815 struct cfg80211_registered_device *rdev;
12816 struct sk_buff *msg;
12817 void *hdr;
12818 u32 nlportid;
12819
f26cbf40 12820 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12821 if (!rdev->crit_proto_nlportid)
12822 return;
12823
12824 nlportid = rdev->crit_proto_nlportid;
12825 rdev->crit_proto_nlportid = 0;
12826
12827 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12828 if (!msg)
12829 return;
12830
12831 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12832 if (!hdr)
12833 goto nla_put_failure;
12834
12835 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12836 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12837 goto nla_put_failure;
12838
12839 genlmsg_end(msg, hdr);
12840
12841 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12842 return;
12843
12844 nla_put_failure:
12845 if (hdr)
12846 genlmsg_cancel(msg, hdr);
12847 nlmsg_free(msg);
12848
12849}
12850EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12851
348baf0e
JB		 12852void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12853{
12854 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12855 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12856 struct sk_buff *msg;
12857 void *hdr;
12858
12859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12860 if (!msg)
12861 return;
12862
12863 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12864 if (!hdr)
12865 goto out;
12866
12867 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12868 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12869 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12870 goto out;
12871
12872 genlmsg_end(msg, hdr);
12873
12874 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12875 NL80211_MCGRP_MLME, GFP_KERNEL);
12876 return;
12877 out:
12878 nlmsg_free(msg);
12879}
12880
55682965
JB		 12881/* initialisation/exit functions */
12882
12883int nl80211_init(void)
12884{
0d63cbb5 12885 int err;
55682965 12886
2a94fe48
JB		 12887 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12888 nl80211_mcgrps);
55682965
JB		 12889 if (err)
12890 return err;
12891
026331c4
JM		 12892 err = netlink_register_notifier(&nl80211_netlink_notifier);
12893 if (err)
12894 goto err_out;
12895
55682965
JB		 12896 return 0;
12897 err_out:
12898 genl_unregister_family(&nl80211_fam);
12899 return err;
12900}
12901
12902void nl80211_exit(void)
12903{
026331c4 12904 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12905 genl_unregister_family(&nl80211_fam);
12906}
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