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mac80211: check and dequeue skb in ieee80211_tx_prepare_skb()
[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:
053c095a
JB		 1726 genlmsg_end(msg, hdr);
1727 return 0;
55682965
JB		 1728
1729 nla_put_failure:
bc3ed28c
TG		 1730 genlmsg_cancel(msg, hdr);
1731 return -EMSGSIZE;
55682965
JB		 1732}
1733
86e8cf98
JB		 1734static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1735 struct netlink_callback *cb,
1736 struct nl80211_dump_wiphy_state *state)
1737{
1738 struct nlattr **tb = nl80211_fam.attrbuf;
1739 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1740 tb, nl80211_fam.maxattr, nl80211_policy);
1741 /* ignore parse errors for backward compatibility */
1742 if (ret)
1743 return 0;
1744
1745 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1746 if (tb[NL80211_ATTR_WIPHY])
1747 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1748 if (tb[NL80211_ATTR_WDEV])
1749 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1750 if (tb[NL80211_ATTR_IFINDEX]) {
1751 struct net_device *netdev;
1752 struct cfg80211_registered_device *rdev;
1753 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1754
7f2b8562 1755 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1756 if (!netdev)
1757 return -ENODEV;
1758 if (netdev->ieee80211_ptr) {
f26cbf40 1759 rdev = wiphy_to_rdev(
86e8cf98
JB		 1760 netdev->ieee80211_ptr->wiphy);
1761 state->filter_wiphy = rdev->wiphy_idx;
1762 }
86e8cf98
JB		 1763 }
1764
1765 return 0;
1766}
1767
55682965
JB		 1768static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1769{
645e77de 1770 int idx = 0, ret;
86e8cf98 1771 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1772 struct cfg80211_registered_device *rdev;
3a5a423b 1773
5fe231e8 1774 rtnl_lock();
86e8cf98
JB		 1775 if (!state) {
1776 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1777 if (!state) {
1778 rtnl_unlock();
86e8cf98 1779 return -ENOMEM;
3713b4e3 1780 }
86e8cf98
JB		 1781 state->filter_wiphy = -1;
1782 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1783 if (ret) {
1784 kfree(state);
1785 rtnl_unlock();
1786 return ret;
3713b4e3 1787 }
86e8cf98 1788 cb->args[0] = (long)state;
3713b4e3
JB		 1789 }
1790
1b8ec87a
ZG		 1791 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1792 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1793 continue;
86e8cf98 1794 if (++idx <= state->start)
55682965 1795 continue;
86e8cf98 1796 if (state->filter_wiphy != -1 &&
1b8ec87a 1797 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1798 continue;
1799 /* attempt to fit multiple wiphy data chunks into the skb */
1800 do {
3bb20556
JB		 1801 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1802 skb,
3713b4e3
JB		 1803 NETLINK_CB(cb->skb).portid,
1804 cb->nlh->nlmsg_seq,
86e8cf98 1805 NLM_F_MULTI, state);
3713b4e3
JB		 1806 if (ret < 0) {
1807 /*
1808 * If sending the wiphy data didn't fit (ENOBUFS
1809 * or EMSGSIZE returned), this SKB is still
1810 * empty (so it's not too big because another
1811 * wiphy dataset is already in the skb) and
1812 * we've not tried to adjust the dump allocation
1813 * yet ... then adjust the alloc size to be
1814 * bigger, and return 1 but with the empty skb.
1815 * This results in an empty message being RX'ed
1816 * in userspace, but that is ignored.
1817 *
1818 * We can then retry with the larger buffer.
1819 */
1820 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1821 !skb->len && !state->split &&
3713b4e3
JB		 1822 cb->min_dump_alloc < 4096) {
1823 cb->min_dump_alloc = 4096;
f12cb289 1824 state->split_start = 0;
d98cae64 1825 rtnl_unlock();
3713b4e3
JB		 1826 return 1;
1827 }
1828 idx--;
1829 break;
645e77de 1830 }
86e8cf98 1831 } while (state->split_start > 0);
3713b4e3 1832 break;
55682965 1833 }
5fe231e8 1834 rtnl_unlock();
55682965 1835
86e8cf98 1836 state->start = idx;
55682965
JB		 1837
1838 return skb->len;
1839}
1840
86e8cf98
JB		 1841static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1842{
1843 kfree((void *)cb->args[0]);
1844 return 0;
1845}
1846
55682965
JB		 1847static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1848{
1849 struct sk_buff *msg;
1b8ec87a 1850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1851 struct nl80211_dump_wiphy_state state = {};
55682965 1852
645e77de 1853 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1854 if (!msg)
4c476991 1855 return -ENOMEM;
55682965 1856
3bb20556
JB		 1857 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1858 info->snd_portid, info->snd_seq, 0,
86e8cf98 1859 &state) < 0) {
4c476991
JB		 1860 nlmsg_free(msg);
1861 return -ENOBUFS;
1862 }
55682965 1863
134e6375 1864 return genlmsg_reply(msg, info);
55682965
JB		 1865}
1866
31888487
JM		 1867static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1868 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1869 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1870 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1871 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1872 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1873};
1874
1875static int parse_txq_params(struct nlattr *tb[],
1876 struct ieee80211_txq_params *txq_params)
1877{
a3304b0a 1878 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1879 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1880 !tb[NL80211_TXQ_ATTR_AIFS])
1881 return -EINVAL;
1882
a3304b0a 1883 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1884 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1885 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1886 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1887 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1888
a3304b0a
JB		 1889 if (txq_params->ac >= NL80211_NUM_ACS)
1890 return -EINVAL;
1891
31888487
JM		 1892 return 0;
1893}
1894
f444de05
JB		 1895static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1896{
1897 /*
cc1d2806
JB		 1898 * You can only set the channel explicitly for WDS interfaces,
1899 * all others have their channel managed via their respective
1900 * "establish a connection" command (connect, join, ...)
1901 *
1902 * For AP/GO and mesh mode, the channel can be set with the
1903 * channel userspace API, but is only stored and passed to the
1904 * low-level driver when the AP starts or the mesh is joined.
1905 * This is for backward compatibility, userspace can also give
1906 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1907 *
1908 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1909 * whatever else is going on, so they have their own special
1910 * operation to set the monitor channel if possible.
f444de05
JB		 1911 */
1912 return !wdev ||
1913 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1914 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1915 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1916 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1917}
1918
683b6d3b
JB		 1919static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1920 struct genl_info *info,
1921 struct cfg80211_chan_def *chandef)
1922{
dbeca2ea 1923 u32 control_freq;
683b6d3b
JB		 1924
1925 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1926 return -EINVAL;
1927
1928 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1929
1930 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1931 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1932 chandef->center_freq1 = control_freq;
1933 chandef->center_freq2 = 0;
683b6d3b
JB		 1934
1935 /* Primary channel not allowed */
1936 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1937 return -EINVAL;
1938
3d9d1d66
JB		 1939 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1940 enum nl80211_channel_type chantype;
1941
1942 chantype = nla_get_u32(
1943 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1944
1945 switch (chantype) {
1946 case NL80211_CHAN_NO_HT:
1947 case NL80211_CHAN_HT20:
1948 case NL80211_CHAN_HT40PLUS:
1949 case NL80211_CHAN_HT40MINUS:
1950 cfg80211_chandef_create(chandef, chandef->chan,
1951 chantype);
1952 break;
1953 default:
1954 return -EINVAL;
1955 }
1956 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1957 chandef->width =
1958 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1959 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1960 chandef->center_freq1 =
1961 nla_get_u32(
1962 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1963 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1964 chandef->center_freq2 =
1965 nla_get_u32(
1966 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1967 }
1968
9f5e8f6e 1969 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1970 return -EINVAL;
1971
9f5e8f6e
JB		 1972 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1973 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1974 return -EINVAL;
1975
2f301ab2
SW		 1976 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1977 chandef->width == NL80211_CHAN_WIDTH_10) &&
1978 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1979 return -EINVAL;
1980
683b6d3b
JB		 1981 return 0;
1982}
1983
f444de05 1984static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1985 struct net_device *dev,
f444de05
JB		 1986 struct genl_info *info)
1987{
683b6d3b 1988 struct cfg80211_chan_def chandef;
f444de05 1989 int result;
e8c9bd5b 1990 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1991 struct wireless_dev *wdev = NULL;
e8c9bd5b 1992
e16821bc
JM		 1993 if (dev)
1994 wdev = dev->ieee80211_ptr;
f444de05
JB		 1995 if (!nl80211_can_set_dev_channel(wdev))
1996 return -EOPNOTSUPP;
e16821bc
JM		 1997 if (wdev)
1998 iftype = wdev->iftype;
f444de05 1999
683b6d3b
JB		 2000 result = nl80211_parse_chandef(rdev, info, &chandef);
2001 if (result)
2002 return result;
f444de05 2003
e8c9bd5b 2004 switch (iftype) {
aa430da4
JB		 2005 case NL80211_IFTYPE_AP:
2006 case NL80211_IFTYPE_P2P_GO:
174e0cd2 2007 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2008 result = -EINVAL;
2009 break;
2010 }
e16821bc
JM		 2011 if (wdev->beacon_interval) {
2012 if (!dev || !rdev->ops->set_ap_chanwidth ||
2013 !(rdev->wiphy.features &
2014 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2015 result = -EBUSY;
2016 break;
2017 }
2018
2019 /* Only allow dynamic channel width changes */
2020 if (chandef.chan != wdev->preset_chandef.chan) {
2021 result = -EBUSY;
2022 break;
2023 }
2024 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2025 if (result)
2026 break;
2027 }
683b6d3b 2028 wdev->preset_chandef = chandef;
aa430da4
JB		 2029 result = 0;
2030 break;
cc1d2806 2031 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2032 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2033 break;
e8c9bd5b 2034 case NL80211_IFTYPE_MONITOR:
683b6d3b 2035 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2036 break;
aa430da4 2037 default:
e8c9bd5b 2038 result = -EINVAL;
f444de05 2039 }
f444de05
JB		 2040
2041 return result;
2042}
2043
2044static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2045{
4c476991
JB		 2046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2047 struct net_device *netdev = info->user_ptr[1];
f444de05 2048
e16821bc 2049 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2050}
2051
e8347eba
BJ		 2052static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2053{
43b19952
JB		 2054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2055 struct net_device *dev = info->user_ptr[1];
2056 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2057 const u8 *bssid;
e8347eba
BJ		 2058
2059 if (!info->attrs[NL80211_ATTR_MAC])
2060 return -EINVAL;
2061
43b19952
JB		 2062 if (netif_running(dev))
2063 return -EBUSY;
e8347eba 2064
43b19952
JB		 2065 if (!rdev->ops->set_wds_peer)
2066 return -EOPNOTSUPP;
e8347eba 2067
43b19952
JB		 2068 if (wdev->iftype != NL80211_IFTYPE_WDS)
2069 return -EOPNOTSUPP;
e8347eba
BJ		 2070
2071 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2072 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2073}
2074
2075
55682965
JB		 2076static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2077{
2078 struct cfg80211_registered_device *rdev;
f444de05
JB		 2079 struct net_device *netdev = NULL;
2080 struct wireless_dev *wdev;
a1e567c8 2081 int result = 0, rem_txq_params = 0;
31888487 2082 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2083 u32 changed;
2084 u8 retry_short = 0, retry_long = 0;
2085 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2086 u8 coverage_class = 0;
55682965 2087
5fe231e8
JB		 2088 ASSERT_RTNL();
2089
f444de05
JB		 2090 /*
2091 * Try to find the wiphy and netdev. Normally this
2092 * function shouldn't need the netdev, but this is
2093 * done for backward compatibility -- previously
2094 * setting the channel was done per wiphy, but now
2095 * it is per netdev. Previous userland like hostapd
2096 * also passed a netdev to set_wiphy, so that it is
2097 * possible to let that go to the right netdev!
2098 */
4bbf4d56 2099
f444de05
JB		 2100 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2101 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2102
7f2b8562 2103 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2104 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2105 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2106 else
f444de05 2107 netdev = NULL;
4bbf4d56
JB		 2108 }
2109
f444de05 2110 if (!netdev) {
878d9ec7
JB		 2111 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2112 info->attrs);
5fe231e8 2113 if (IS_ERR(rdev))
4c476991 2114 return PTR_ERR(rdev);
f444de05
JB		 2115 wdev = NULL;
2116 netdev = NULL;
2117 result = 0;
71fe96bf 2118 } else
f444de05 2119 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2120
2121 /*
2122 * end workaround code, by now the rdev is available
2123 * and locked, and wdev may or may not be NULL.
2124 */
4bbf4d56
JB		 2125
2126 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2127 result = cfg80211_dev_rename(
2128 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2129
4bbf4d56 2130 if (result)
7f2b8562 2131 return result;
31888487
JM		 2132
2133 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2134 struct ieee80211_txq_params txq_params;
2135 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2136
7f2b8562
YX		 2137 if (!rdev->ops->set_txq_params)
2138 return -EOPNOTSUPP;
31888487 2139
7f2b8562
YX		 2140 if (!netdev)
2141 return -EINVAL;
f70f01c2 2142
133a3ff2 2143 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2144 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2145 return -EINVAL;
133a3ff2 2146
7f2b8562
YX		 2147 if (!netif_running(netdev))
2148 return -ENETDOWN;
2b5f8b0b 2149
31888487
JM		 2150 nla_for_each_nested(nl_txq_params,
2151 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2152 rem_txq_params) {
ae811e21
JB		 2153 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2154 nla_data(nl_txq_params),
2155 nla_len(nl_txq_params),
2156 txq_params_policy);
2157 if (result)
2158 return result;
31888487
JM		 2159 result = parse_txq_params(tb, &txq_params);
2160 if (result)
7f2b8562 2161 return result;
31888487 2162
e35e4d28
HG		 2163 result = rdev_set_txq_params(rdev, netdev,
2164 &txq_params);
31888487 2165 if (result)
7f2b8562 2166 return result;
31888487
JM		 2167 }
2168 }
55682965 2169
72bdcf34 2170 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2171 result = __nl80211_set_channel(
2172 rdev,
2173 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2174 info);
72bdcf34 2175 if (result)
7f2b8562 2176 return result;
72bdcf34
JM		 2177 }
2178
98d2ff8b 2179 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2180 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2181 enum nl80211_tx_power_setting type;
2182 int idx, mbm = 0;
2183
c8442118
JB		 2184 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2185 txp_wdev = NULL;
2186
7f2b8562
YX		 2187 if (!rdev->ops->set_tx_power)
2188 return -EOPNOTSUPP;
98d2ff8b
JO		 2189
2190 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2191 type = nla_get_u32(info->attrs[idx]);
2192
2193 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2194 (type != NL80211_TX_POWER_AUTOMATIC))
2195 return -EINVAL;
98d2ff8b
JO		 2196
2197 if (type != NL80211_TX_POWER_AUTOMATIC) {
2198 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2199 mbm = nla_get_u32(info->attrs[idx]);
2200 }
2201
c8442118 2202 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2203 if (result)
7f2b8562 2204 return result;
98d2ff8b
JO		 2205 }
2206
afe0cbf8
BR		 2207 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2208 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2209 u32 tx_ant, rx_ant;
7f531e03
BR		 2210 if ((!rdev->wiphy.available_antennas_tx &&
2211 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2212 !rdev->ops->set_antenna)
2213 return -EOPNOTSUPP;
afe0cbf8
BR		 2214
2215 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2216 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2217
a7ffac95 2218 /* reject antenna configurations which don't match the
7f531e03
BR		 2219 * available antenna masks, except for the "all" mask */
2220 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2221 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2222 return -EINVAL;
a7ffac95 2223
7f531e03
BR		 2224 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2225 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2226
e35e4d28 2227 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2228 if (result)
7f2b8562 2229 return result;
afe0cbf8
BR		 2230 }
2231
b9a5f8ca
JM		 2232 changed = 0;
2233
2234 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2235 retry_short = nla_get_u8(
2236 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2237 if (retry_short == 0)
2238 return -EINVAL;
2239
b9a5f8ca
JM		 2240 changed |= WIPHY_PARAM_RETRY_SHORT;
2241 }
2242
2243 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2244 retry_long = nla_get_u8(
2245 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2246 if (retry_long == 0)
2247 return -EINVAL;
2248
b9a5f8ca
JM		 2249 changed |= WIPHY_PARAM_RETRY_LONG;
2250 }
2251
2252 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2253 frag_threshold = nla_get_u32(
2254 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2255 if (frag_threshold < 256)
2256 return -EINVAL;
2257
b9a5f8ca
JM		 2258 if (frag_threshold != (u32) -1) {
2259 /*
2260 * Fragments (apart from the last one) are required to
2261 * have even length. Make the fragmentation code
2262 * simpler by stripping LSB should someone try to use
2263 * odd threshold value.
2264 */
2265 frag_threshold &= ~0x1;
2266 }
2267 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2268 }
2269
2270 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2271 rts_threshold = nla_get_u32(
2272 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2273 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2274 }
2275
81077e82 2276 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2277 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2278 return -EINVAL;
2279
81077e82
LT		 2280 coverage_class = nla_get_u8(
2281 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2282 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2283 }
2284
3057dbfd
LB		 2285 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2286 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2287 return -EOPNOTSUPP;
2288
2289 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2290 }
2291
b9a5f8ca
JM		 2292 if (changed) {
2293 u8 old_retry_short, old_retry_long;
2294 u32 old_frag_threshold, old_rts_threshold;
81077e82 2295 u8 old_coverage_class;
b9a5f8ca 2296
7f2b8562
YX		 2297 if (!rdev->ops->set_wiphy_params)
2298 return -EOPNOTSUPP;
b9a5f8ca
JM		 2299
2300 old_retry_short = rdev->wiphy.retry_short;
2301 old_retry_long = rdev->wiphy.retry_long;
2302 old_frag_threshold = rdev->wiphy.frag_threshold;
2303 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2304 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2305
2306 if (changed & WIPHY_PARAM_RETRY_SHORT)
2307 rdev->wiphy.retry_short = retry_short;
2308 if (changed & WIPHY_PARAM_RETRY_LONG)
2309 rdev->wiphy.retry_long = retry_long;
2310 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2311 rdev->wiphy.frag_threshold = frag_threshold;
2312 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2313 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2314 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2315 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2316
e35e4d28 2317 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2318 if (result) {
2319 rdev->wiphy.retry_short = old_retry_short;
2320 rdev->wiphy.retry_long = old_retry_long;
2321 rdev->wiphy.frag_threshold = old_frag_threshold;
2322 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2323 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2324 }
2325 }
7f2b8562 2326 return 0;
55682965
JB		 2327}
2328
71bbc994
JB		 2329static inline u64 wdev_id(struct wireless_dev *wdev)
2330{
2331 return (u64)wdev->identifier |
f26cbf40 2332 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2333}
55682965 2334
683b6d3b 2335static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2336 const struct cfg80211_chan_def *chandef)
683b6d3b 2337{
601555cd
JB		 2338 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2339 return -EINVAL;
3d9d1d66 2340
683b6d3b
JB		 2341 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2342 chandef->chan->center_freq))
2343 return -ENOBUFS;
3d9d1d66
JB		 2344 switch (chandef->width) {
2345 case NL80211_CHAN_WIDTH_20_NOHT:
2346 case NL80211_CHAN_WIDTH_20:
2347 case NL80211_CHAN_WIDTH_40:
2348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2349 cfg80211_get_chandef_type(chandef)))
2350 return -ENOBUFS;
2351 break;
2352 default:
2353 break;
2354 }
2355 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2356 return -ENOBUFS;
2357 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2358 return -ENOBUFS;
2359 if (chandef->center_freq2 &&
2360 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2361 return -ENOBUFS;
2362 return 0;
2363}
2364
15e47304 2365static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2366 struct cfg80211_registered_device *rdev,
8f894be2 2367 struct wireless_dev *wdev, bool removal)
55682965 2368{
72fb2abc 2369 struct net_device *dev = wdev->netdev;
8f894be2 2370 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2371 void *hdr;
2372
8f894be2
TB		 2373 if (removal)
2374 cmd = NL80211_CMD_DEL_INTERFACE;
2375
2376 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2377 if (!hdr)
2378 return -1;
2379
72fb2abc
JB		 2380 if (dev &&
2381 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2382 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2383 goto nla_put_failure;
2384
2385 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2386 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2387 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2388 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2389 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2390 rdev->devlist_generation ^
2391 (cfg80211_rdev_list_generation << 2)))
2392 goto nla_put_failure;
f5ea9120 2393
5b7ccaf3 2394 if (rdev->ops->get_channel) {
683b6d3b
JB		 2395 int ret;
2396 struct cfg80211_chan_def chandef;
2397
2398 ret = rdev_get_channel(rdev, wdev, &chandef);
2399 if (ret == 0) {
2400 if (nl80211_send_chandef(msg, &chandef))
2401 goto nla_put_failure;
2402 }
d91df0e3
PF		 2403 }
2404
b84e7a05
AQ		 2405 if (wdev->ssid_len) {
2406 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2407 goto nla_put_failure;
2408 }
2409
053c095a
JB		 2410 genlmsg_end(msg, hdr);
2411 return 0;
55682965
JB		 2412
2413 nla_put_failure:
bc3ed28c
TG		 2414 genlmsg_cancel(msg, hdr);
2415 return -EMSGSIZE;
55682965
JB		 2416}
2417
2418static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2419{
2420 int wp_idx = 0;
2421 int if_idx = 0;
2422 int wp_start = cb->args[0];
2423 int if_start = cb->args[1];
f5ea9120 2424 struct cfg80211_registered_device *rdev;
55682965
JB		 2425 struct wireless_dev *wdev;
2426
5fe231e8 2427 rtnl_lock();
f5ea9120
JB		 2428 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2429 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2430 continue;
bba95fef
JB		 2431 if (wp_idx < wp_start) {
2432 wp_idx++;
55682965 2433 continue;
bba95fef 2434 }
55682965
JB		 2435 if_idx = 0;
2436
89a54e48 2437 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2438 if (if_idx < if_start) {
2439 if_idx++;
55682965 2440 continue;
bba95fef 2441 }
15e47304 2442 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2443 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2444 rdev, wdev, false) < 0) {
bba95fef
JB		 2445 goto out;
2446 }
2447 if_idx++;
55682965 2448 }
bba95fef
JB		 2449
2450 wp_idx++;
55682965 2451 }
bba95fef 2452 out:
5fe231e8 2453 rtnl_unlock();
55682965
JB		 2454
2455 cb->args[0] = wp_idx;
2456 cb->args[1] = if_idx;
2457
2458 return skb->len;
2459}
2460
2461static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2462{
2463 struct sk_buff *msg;
1b8ec87a 2464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2465 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2466
fd2120ca 2467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2468 if (!msg)
4c476991 2469 return -ENOMEM;
55682965 2470
15e47304 2471 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2472 rdev, wdev, false) < 0) {
4c476991
JB		 2473 nlmsg_free(msg);
2474 return -ENOBUFS;
2475 }
55682965 2476
134e6375 2477 return genlmsg_reply(msg, info);
55682965
JB		 2478}
2479
66f7ac50
MW		 2480static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2481 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2482 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2483 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2484 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2485 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2486 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2487};
2488
2489static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2490{
2491 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2492 int flag;
2493
2494 *mntrflags = 0;
2495
2496 if (!nla)
2497 return -EINVAL;
2498
2499 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2500 nla, mntr_flags_policy))
2501 return -EINVAL;
2502
2503 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2504 if (flags[flag])
2505 *mntrflags |= (1<<flag);
2506
2507 return 0;
2508}
2509
9bc383de 2510static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2511 struct net_device *netdev, u8 use_4addr,
2512 enum nl80211_iftype iftype)
9bc383de 2513{
ad4bb6f8 2514 if (!use_4addr) {
f350a0a8 2515 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2516 return -EBUSY;
9bc383de 2517 return 0;
ad4bb6f8 2518 }
9bc383de
JB		 2519
2520 switch (iftype) {
2521 case NL80211_IFTYPE_AP_VLAN:
2522 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2523 return 0;
2524 break;
2525 case NL80211_IFTYPE_STATION:
2526 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2527 return 0;
2528 break;
2529 default:
2530 break;
2531 }
2532
2533 return -EOPNOTSUPP;
2534}
2535
55682965
JB		 2536static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2537{
4c476991 2538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2539 struct vif_params params;
e36d56b6 2540 int err;
04a773ad 2541 enum nl80211_iftype otype, ntype;
4c476991 2542 struct net_device *dev = info->user_ptr[1];
92ffe055 2543 u32 _flags, *flags = NULL;
ac7f9cfa 2544 bool change = false;
55682965 2545
2ec600d6
LCC		 2546 memset(&params, 0, sizeof(params));
2547
04a773ad 2548 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2549
723b038d 2550 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2551 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2552 if (otype != ntype)
ac7f9cfa 2553 change = true;
4c476991
JB		 2554 if (ntype > NL80211_IFTYPE_MAX)
2555 return -EINVAL;
723b038d
JB		 2556 }
2557
92ffe055 2558 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2559 struct wireless_dev *wdev = dev->ieee80211_ptr;
2560
4c476991
JB		 2561 if (ntype != NL80211_IFTYPE_MESH_POINT)
2562 return -EINVAL;
29cbe68c
JB		 2563 if (netif_running(dev))
2564 return -EBUSY;
2565
2566 wdev_lock(wdev);
2567 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2568 IEEE80211_MAX_MESH_ID_LEN);
2569 wdev->mesh_id_up_len =
2570 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2571 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2572 wdev->mesh_id_up_len);
2573 wdev_unlock(wdev);
2ec600d6
LCC		 2574 }
2575
8b787643
FF		 2576 if (info->attrs[NL80211_ATTR_4ADDR]) {
2577 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2578 change = true;
ad4bb6f8 2579 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2580 if (err)
4c476991 2581 return err;
8b787643
FF		 2582 } else {
2583 params.use_4addr = -1;
2584 }
2585
92ffe055 2586 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2587 if (ntype != NL80211_IFTYPE_MONITOR)
2588 return -EINVAL;
92ffe055
JB		 2589 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2590 &_flags);
ac7f9cfa 2591 if (err)
4c476991 2592 return err;
ac7f9cfa
JB		 2593
2594 flags = &_flags;
2595 change = true;
92ffe055 2596 }
3b85875a 2597
18003297 2598 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2599 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2600 return -EOPNOTSUPP;
2601
ac7f9cfa 2602 if (change)
3d54d255 2603 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2604 else
2605 err = 0;
60719ffd 2606
9bc383de
JB		 2607 if (!err && params.use_4addr != -1)
2608 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2609
55682965
JB		 2610 return err;
2611}
2612
2613static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2614{
4c476991 2615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2616 struct vif_params params;
84efbb84 2617 struct wireless_dev *wdev;
8f894be2 2618 struct sk_buff *msg, *event;
55682965
JB		 2619 int err;
2620 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2621 u32 flags;
55682965 2622
78f22b6a
JB		 2623 /* to avoid failing a new interface creation due to pending removal */
2624 cfg80211_destroy_ifaces(rdev);
2625
2ec600d6
LCC		 2626 memset(&params, 0, sizeof(params));
2627
55682965
JB		 2628 if (!info->attrs[NL80211_ATTR_IFNAME])
2629 return -EINVAL;
2630
2631 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2632 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2633 if (type > NL80211_IFTYPE_MAX)
2634 return -EINVAL;
2635 }
2636
79c97e97 2637 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2638 !(rdev->wiphy.interface_modes & (1 << type)))
2639 return -EOPNOTSUPP;
55682965 2640
e8f479b1
BG		 2641 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2642 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2643 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2644 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2645 ETH_ALEN);
2646 if (!is_valid_ether_addr(params.macaddr))
2647 return -EADDRNOTAVAIL;
2648 }
2649
9bc383de 2650 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2651 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2652 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2653 if (err)
4c476991 2654 return err;
9bc383de 2655 }
8b787643 2656
1c90f9d4
JB		 2657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2658 if (!msg)
2659 return -ENOMEM;
2660
66f7ac50
MW		 2661 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2662 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2663 &flags);
e057d3c3 2664
18003297 2665 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2666 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2667 return -EOPNOTSUPP;
2668
e35e4d28
HG		 2669 wdev = rdev_add_virtual_intf(rdev,
2670 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2671 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2672 if (WARN_ON(!wdev)) {
2673 nlmsg_free(msg);
2674 return -EPROTO;
2675 } else if (IS_ERR(wdev)) {
1c90f9d4 2676 nlmsg_free(msg);
84efbb84 2677 return PTR_ERR(wdev);
1c90f9d4 2678 }
2ec600d6 2679
18e5ca65 2680 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2681 wdev->owner_nlportid = info->snd_portid;
2682
98104fde
JB		 2683 switch (type) {
2684 case NL80211_IFTYPE_MESH_POINT:
2685 if (!info->attrs[NL80211_ATTR_MESH_ID])
2686 break;
29cbe68c
JB		 2687 wdev_lock(wdev);
2688 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2689 IEEE80211_MAX_MESH_ID_LEN);
2690 wdev->mesh_id_up_len =
2691 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2692 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2693 wdev->mesh_id_up_len);
2694 wdev_unlock(wdev);
98104fde
JB		 2695 break;
2696 case NL80211_IFTYPE_P2P_DEVICE:
2697 /*
2698 * P2P Device doesn't have a netdev, so doesn't go
2699 * through the netdev notifier and must be added here
2700 */
2701 mutex_init(&wdev->mtx);
2702 INIT_LIST_HEAD(&wdev->event_list);
2703 spin_lock_init(&wdev->event_lock);
2704 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2705 spin_lock_init(&wdev->mgmt_registrations_lock);
2706
98104fde
JB		 2707 wdev->identifier = ++rdev->wdev_id;
2708 list_add_rcu(&wdev->list, &rdev->wdev_list);
2709 rdev->devlist_generation++;
98104fde
JB		 2710 break;
2711 default:
2712 break;
29cbe68c
JB		 2713 }
2714
15e47304 2715 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2716 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2717 nlmsg_free(msg);
2718 return -ENOBUFS;
2719 }
2720
8f894be2
TB		 2721 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2722 if (event) {
2723 if (nl80211_send_iface(event, 0, 0, 0,
2724 rdev, wdev, false) < 0) {
2725 nlmsg_free(event);
2726 goto out;
2727 }
2728
2729 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2730 event, 0, NL80211_MCGRP_CONFIG,
2731 GFP_KERNEL);
2732 }
2733
2734out:
1c90f9d4 2735 return genlmsg_reply(msg, info);
55682965
JB		 2736}
2737
2738static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2739{
4c476991 2740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2741 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2742 struct sk_buff *msg;
2743 int status;
55682965 2744
4c476991
JB		 2745 if (!rdev->ops->del_virtual_intf)
2746 return -EOPNOTSUPP;
55682965 2747
8f894be2
TB		 2748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2749 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2750 nlmsg_free(msg);
2751 msg = NULL;
2752 }
2753
84efbb84
JB		 2754 /*
2755 * If we remove a wireless device without a netdev then clear
2756 * user_ptr[1] so that nl80211_post_doit won't dereference it
2757 * to check if it needs to do dev_put(). Otherwise it crashes
2758 * since the wdev has been freed, unlike with a netdev where
2759 * we need the dev_put() for the netdev to really be freed.
2760 */
2761 if (!wdev->netdev)
2762 info->user_ptr[1] = NULL;
2763
8f894be2
TB		 2764 status = rdev_del_virtual_intf(rdev, wdev);
2765 if (status >= 0 && msg)
2766 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2767 msg, 0, NL80211_MCGRP_CONFIG,
2768 GFP_KERNEL);
2769 else
2770 nlmsg_free(msg);
2771
2772 return status;
55682965
JB		 2773}
2774
1d9d9213
SW		 2775static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2776{
2777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2778 struct net_device *dev = info->user_ptr[1];
2779 u16 noack_map;
2780
2781 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2782 return -EINVAL;
2783
2784 if (!rdev->ops->set_noack_map)
2785 return -EOPNOTSUPP;
2786
2787 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2788
e35e4d28 2789 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2790}
2791
41ade00f
JB		 2792struct get_key_cookie {
2793 struct sk_buff *msg;
2794 int error;
b9454e83 2795 int idx;
41ade00f
JB		 2796};
2797
2798static void get_key_callback(void *c, struct key_params *params)
2799{
b9454e83 2800 struct nlattr *key;
41ade00f
JB		 2801 struct get_key_cookie *cookie = c;
2802
9360ffd1
DM		 2803 if ((params->key &&
2804 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2805 params->key_len, params->key)) ||
2806 (params->seq &&
2807 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2808 params->seq_len, params->seq)) ||
2809 (params->cipher &&
2810 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2811 params->cipher)))
2812 goto nla_put_failure;
41ade00f 2813
b9454e83
JB		 2814 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2815 if (!key)
2816 goto nla_put_failure;
2817
9360ffd1
DM		 2818 if ((params->key &&
2819 nla_put(cookie->msg, NL80211_KEY_DATA,
2820 params->key_len, params->key)) ||
2821 (params->seq &&
2822 nla_put(cookie->msg, NL80211_KEY_SEQ,
2823 params->seq_len, params->seq)) ||
2824 (params->cipher &&
2825 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2826 params->cipher)))
2827 goto nla_put_failure;
b9454e83 2828
9360ffd1
DM		 2829 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2830 goto nla_put_failure;
b9454e83
JB		 2831
2832 nla_nest_end(cookie->msg, key);
2833
41ade00f
JB		 2834 return;
2835 nla_put_failure:
2836 cookie->error = 1;
2837}
2838
2839static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2840{
4c476991 2841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2842 int err;
4c476991 2843 struct net_device *dev = info->user_ptr[1];
41ade00f 2844 u8 key_idx = 0;
e31b8213
JB		 2845 const u8 *mac_addr = NULL;
2846 bool pairwise;
41ade00f
JB		 2847 struct get_key_cookie cookie = {
2848 .error = 0,
2849 };
2850 void *hdr;
2851 struct sk_buff *msg;
2852
2853 if (info->attrs[NL80211_ATTR_KEY_IDX])
2854 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2855
3cfcf6ac 2856 if (key_idx > 5)
41ade00f
JB		 2857 return -EINVAL;
2858
2859 if (info->attrs[NL80211_ATTR_MAC])
2860 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2861
e31b8213
JB		 2862 pairwise = !!mac_addr;
2863 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2864 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2865 if (kt >= NUM_NL80211_KEYTYPES)
2866 return -EINVAL;
2867 if (kt != NL80211_KEYTYPE_GROUP &&
2868 kt != NL80211_KEYTYPE_PAIRWISE)
2869 return -EINVAL;
2870 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2871 }
2872
4c476991
JB		 2873 if (!rdev->ops->get_key)
2874 return -EOPNOTSUPP;
41ade00f 2875
0fa7b391
JB		 2876 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2877 return -ENOENT;
2878
fd2120ca 2879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2880 if (!msg)
2881 return -ENOMEM;
41ade00f 2882
15e47304 2883 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2884 NL80211_CMD_NEW_KEY);
cb35fba3 2885 if (!hdr)
9fe271af 2886 goto nla_put_failure;
41ade00f
JB		 2887
2888 cookie.msg = msg;
b9454e83 2889 cookie.idx = key_idx;
41ade00f 2890
9360ffd1
DM		 2891 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2892 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2893 goto nla_put_failure;
2894 if (mac_addr &&
2895 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2896 goto nla_put_failure;
41ade00f 2897
e35e4d28
HG		 2898 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2899 get_key_callback);
41ade00f
JB		 2900
2901 if (err)
6c95e2a2 2902 goto free_msg;
41ade00f
JB		 2903
2904 if (cookie.error)
2905 goto nla_put_failure;
2906
2907 genlmsg_end(msg, hdr);
4c476991 2908 return genlmsg_reply(msg, info);
41ade00f
JB		 2909
2910 nla_put_failure:
2911 err = -ENOBUFS;
6c95e2a2 2912 free_msg:
41ade00f 2913 nlmsg_free(msg);
41ade00f
JB		 2914 return err;
2915}
2916
2917static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2918{
4c476991 2919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2920 struct key_parse key;
41ade00f 2921 int err;
4c476991 2922 struct net_device *dev = info->user_ptr[1];
41ade00f 2923
b9454e83
JB		 2924 err = nl80211_parse_key(info, &key);
2925 if (err)
2926 return err;
41ade00f 2927
b9454e83 2928 if (key.idx < 0)
41ade00f
JB		 2929 return -EINVAL;
2930
b9454e83
JB		 2931 /* only support setting default key */
2932 if (!key.def && !key.defmgmt)
41ade00f
JB		 2933 return -EINVAL;
2934
dbd2fd65 2935 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2936
dbd2fd65
JB		 2937 if (key.def) {
2938 if (!rdev->ops->set_default_key) {
2939 err = -EOPNOTSUPP;
2940 goto out;
2941 }
41ade00f 2942
dbd2fd65
JB		 2943 err = nl80211_key_allowed(dev->ieee80211_ptr);
2944 if (err)
2945 goto out;
2946
e35e4d28 2947 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2948 key.def_uni, key.def_multi);
2949
2950 if (err)
2951 goto out;
fffd0934 2952
3d23e349 2953#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2954 dev->ieee80211_ptr->wext.default_key = key.idx;
2955#endif
2956 } else {
2957 if (key.def_uni || !key.def_multi) {
2958 err = -EINVAL;
2959 goto out;
2960 }
2961
2962 if (!rdev->ops->set_default_mgmt_key) {
2963 err = -EOPNOTSUPP;
2964 goto out;
2965 }
2966
2967 err = nl80211_key_allowed(dev->ieee80211_ptr);
2968 if (err)
2969 goto out;
2970
e35e4d28 2971 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2972 if (err)
2973 goto out;
2974
2975#ifdef CONFIG_CFG80211_WEXT
2976 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2977#endif
dbd2fd65
JB		 2978 }
2979
2980 out:
fffd0934 2981 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2982
41ade00f
JB		 2983 return err;
2984}
2985
2986static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2987{
4c476991 2988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2989 int err;
4c476991 2990 struct net_device *dev = info->user_ptr[1];
b9454e83 2991 struct key_parse key;
e31b8213 2992 const u8 *mac_addr = NULL;
41ade00f 2993
b9454e83
JB		 2994 err = nl80211_parse_key(info, &key);
2995 if (err)
2996 return err;
41ade00f 2997
b9454e83 2998 if (!key.p.key)
41ade00f
JB		 2999 return -EINVAL;
3000
41ade00f
JB		 3001 if (info->attrs[NL80211_ATTR_MAC])
3002 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3003
e31b8213
JB		 3004 if (key.type == -1) {
3005 if (mac_addr)
3006 key.type = NL80211_KEYTYPE_PAIRWISE;
3007 else
3008 key.type = NL80211_KEYTYPE_GROUP;
3009 }
3010
3011 /* for now */
3012 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3013 key.type != NL80211_KEYTYPE_GROUP)
3014 return -EINVAL;
3015
4c476991
JB		 3016 if (!rdev->ops->add_key)
3017 return -EOPNOTSUPP;
25e47c18 3018
e31b8213
JB		 3019 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3020 key.type == NL80211_KEYTYPE_PAIRWISE,
3021 mac_addr))
4c476991 3022 return -EINVAL;
41ade00f 3023
fffd0934
JB		 3024 wdev_lock(dev->ieee80211_ptr);
3025 err = nl80211_key_allowed(dev->ieee80211_ptr);
3026 if (!err)
e35e4d28
HG		 3027 err = rdev_add_key(rdev, dev, key.idx,
3028 key.type == NL80211_KEYTYPE_PAIRWISE,
3029 mac_addr, &key.p);
fffd0934 3030 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3031
41ade00f
JB		 3032 return err;
3033}
3034
3035static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3036{
4c476991 3037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3038 int err;
4c476991 3039 struct net_device *dev = info->user_ptr[1];
41ade00f 3040 u8 *mac_addr = NULL;
b9454e83 3041 struct key_parse key;
41ade00f 3042
b9454e83
JB		 3043 err = nl80211_parse_key(info, &key);
3044 if (err)
3045 return err;
41ade00f
JB		 3046
3047 if (info->attrs[NL80211_ATTR_MAC])
3048 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3049
e31b8213
JB		 3050 if (key.type == -1) {
3051 if (mac_addr)
3052 key.type = NL80211_KEYTYPE_PAIRWISE;
3053 else
3054 key.type = NL80211_KEYTYPE_GROUP;
3055 }
3056
3057 /* for now */
3058 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3059 key.type != NL80211_KEYTYPE_GROUP)
3060 return -EINVAL;
3061
4c476991
JB		 3062 if (!rdev->ops->del_key)
3063 return -EOPNOTSUPP;
41ade00f 3064
fffd0934
JB		 3065 wdev_lock(dev->ieee80211_ptr);
3066 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213 3067
0fa7b391 3068 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
e31b8213
JB		 3069 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3070 err = -ENOENT;
3071
fffd0934 3072 if (!err)
e35e4d28
HG		 3073 err = rdev_del_key(rdev, dev, key.idx,
3074 key.type == NL80211_KEYTYPE_PAIRWISE,
3075 mac_addr);
41ade00f 3076
3d23e349 3077#ifdef CONFIG_CFG80211_WEXT
08645126 3078 if (!err) {
b9454e83 3079 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3080 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3081 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3082 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3083 }
3084#endif
fffd0934 3085 wdev_unlock(dev->ieee80211_ptr);
08645126 3086
41ade00f
JB		 3087 return err;
3088}
3089
77765eaf
VT		 3090/* This function returns an error or the number of nested attributes */
3091static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3092{
3093 struct nlattr *attr;
3094 int n_entries = 0, tmp;
3095
3096 nla_for_each_nested(attr, nl_attr, tmp) {
3097 if (nla_len(attr) != ETH_ALEN)
3098 return -EINVAL;
3099
3100 n_entries++;
3101 }
3102
3103 return n_entries;
3104}
3105
3106/*
3107 * This function parses ACL information and allocates memory for ACL data.
3108 * On successful return, the calling function is responsible to free the
3109 * ACL buffer returned by this function.
3110 */
3111static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3112 struct genl_info *info)
3113{
3114 enum nl80211_acl_policy acl_policy;
3115 struct nlattr *attr;
3116 struct cfg80211_acl_data *acl;
3117 int i = 0, n_entries, tmp;
3118
3119 if (!wiphy->max_acl_mac_addrs)
3120 return ERR_PTR(-EOPNOTSUPP);
3121
3122 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3123 return ERR_PTR(-EINVAL);
3124
3125 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3126 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3127 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3128 return ERR_PTR(-EINVAL);
3129
3130 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3131 return ERR_PTR(-EINVAL);
3132
3133 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3134 if (n_entries < 0)
3135 return ERR_PTR(n_entries);
3136
3137 if (n_entries > wiphy->max_acl_mac_addrs)
3138 return ERR_PTR(-ENOTSUPP);
3139
3140 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3141 GFP_KERNEL);
3142 if (!acl)
3143 return ERR_PTR(-ENOMEM);
3144
3145 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3146 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3147 i++;
3148 }
3149
3150 acl->n_acl_entries = n_entries;
3151 acl->acl_policy = acl_policy;
3152
3153 return acl;
3154}
3155
3156static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3157{
3158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3159 struct net_device *dev = info->user_ptr[1];
3160 struct cfg80211_acl_data *acl;
3161 int err;
3162
3163 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3164 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3165 return -EOPNOTSUPP;
3166
3167 if (!dev->ieee80211_ptr->beacon_interval)
3168 return -EINVAL;
3169
3170 acl = parse_acl_data(&rdev->wiphy, info);
3171 if (IS_ERR(acl))
3172 return PTR_ERR(acl);
3173
3174 err = rdev_set_mac_acl(rdev, dev, acl);
3175
3176 kfree(acl);
3177
3178 return err;
3179}
3180
a1193be8 3181static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3182 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3183{
8860020e 3184 bool haveinfo = false;
ed1b6cc7 3185
a1193be8
SW		 3186 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3187 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3188 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3189 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3190 return -EINVAL;
3191
8860020e 3192 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3193
a1193be8
SW		 3194 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3195 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3196 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3197 if (!bcn->head_len)
3198 return -EINVAL;
3199 haveinfo = true;
ed1b6cc7
JB		 3200 }
3201
a1193be8
SW		 3202 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3203 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3204 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3205 haveinfo = true;
ed1b6cc7
JB		 3206 }
3207
4c476991
JB		 3208 if (!haveinfo)
3209 return -EINVAL;
3b85875a 3210
a1193be8
SW		 3211 if (attrs[NL80211_ATTR_IE]) {
3212 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3213 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3214 }
3215
a1193be8 3216 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3217 bcn->proberesp_ies =
a1193be8 3218 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3219 bcn->proberesp_ies_len =
a1193be8 3220 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3221 }
3222
a1193be8 3223 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3224 bcn->assocresp_ies =
a1193be8 3225 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3226 bcn->assocresp_ies_len =
a1193be8 3227 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3228 }
3229
a1193be8
SW		 3230 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3231 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3232 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3233 }
3234
8860020e
JB		 3235 return 0;
3236}
3237
46c1dd0c
FF		 3238static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3239 struct cfg80211_ap_settings *params)
3240{
3241 struct wireless_dev *wdev;
3242 bool ret = false;
3243
89a54e48 3244 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3245 if (wdev->iftype != NL80211_IFTYPE_AP &&
3246 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3247 continue;
3248
683b6d3b 3249 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3250 continue;
3251
683b6d3b 3252 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3253 ret = true;
3254 break;
3255 }
3256
46c1dd0c
FF		 3257 return ret;
3258}
3259
e39e5b5e
JM		 3260static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3261 enum nl80211_auth_type auth_type,
3262 enum nl80211_commands cmd)
3263{
3264 if (auth_type > NL80211_AUTHTYPE_MAX)
3265 return false;
3266
3267 switch (cmd) {
3268 case NL80211_CMD_AUTHENTICATE:
3269 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3270 auth_type == NL80211_AUTHTYPE_SAE)
3271 return false;
3272 return true;
3273 case NL80211_CMD_CONNECT:
3274 case NL80211_CMD_START_AP:
3275 /* SAE not supported yet */
3276 if (auth_type == NL80211_AUTHTYPE_SAE)
3277 return false;
3278 return true;
3279 default:
3280 return false;
3281 }
3282}
3283
8860020e
JB		 3284static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3285{
3286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3287 struct net_device *dev = info->user_ptr[1];
3288 struct wireless_dev *wdev = dev->ieee80211_ptr;
3289 struct cfg80211_ap_settings params;
3290 int err;
3291
3292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3293 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3294 return -EOPNOTSUPP;
3295
3296 if (!rdev->ops->start_ap)
3297 return -EOPNOTSUPP;
3298
3299 if (wdev->beacon_interval)
3300 return -EALREADY;
3301
3302 memset(&params, 0, sizeof(params));
3303
3304 /* these are required for START_AP */
3305 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3306 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3307 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3308 return -EINVAL;
3309
a1193be8 3310 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3311 if (err)
3312 return err;
3313
3314 params.beacon_interval =
3315 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3316 params.dtim_period =
3317 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3318
3319 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3320 if (err)
3321 return err;
3322
3323 /*
3324 * In theory, some of these attributes should be required here
3325 * but since they were not used when the command was originally
3326 * added, keep them optional for old user space programs to let
3327 * them continue to work with drivers that do not need the
3328 * additional information -- drivers must check!
3329 */
3330 if (info->attrs[NL80211_ATTR_SSID]) {
3331 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3332 params.ssid_len =
3333 nla_len(info->attrs[NL80211_ATTR_SSID]);
3334 if (params.ssid_len == 0 ||
3335 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3336 return -EINVAL;
3337 }
3338
3339 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3340 params.hidden_ssid = nla_get_u32(
3341 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3342 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3343 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3344 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3345 return -EINVAL;
3346 }
3347
3348 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3349
3350 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3351 params.auth_type = nla_get_u32(
3352 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3353 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3354 NL80211_CMD_START_AP))
8860020e
JB		 3355 return -EINVAL;
3356 } else
3357 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3358
3359 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3360 NL80211_MAX_NR_CIPHER_SUITES);
3361 if (err)
3362 return err;
3363
1b658f11
VT		 3364 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3365 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3366 return -EOPNOTSUPP;
3367 params.inactivity_timeout = nla_get_u16(
3368 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3369 }
3370
53cabad7
JB		 3371 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3373 return -EINVAL;
3374 params.p2p_ctwindow =
3375 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3376 if (params.p2p_ctwindow > 127)
3377 return -EINVAL;
3378 if (params.p2p_ctwindow != 0 &&
3379 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3380 return -EINVAL;
3381 }
3382
3383 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3384 u8 tmp;
3385
3386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3387 return -EINVAL;
3388 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3389 if (tmp > 1)
3390 return -EINVAL;
3391 params.p2p_opp_ps = tmp;
3392 if (params.p2p_opp_ps != 0 &&
3393 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3394 return -EINVAL;
3395 }
3396
aa430da4 3397 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3398 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3399 if (err)
3400 return err;
3401 } else if (wdev->preset_chandef.chan) {
3402 params.chandef = wdev->preset_chandef;
46c1dd0c 3403 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3404 return -EINVAL;
3405
174e0cd2
IP		 3406 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3407 wdev->iftype))
aa430da4
JB		 3408 return -EINVAL;
3409
77765eaf
VT		 3410 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3411 params.acl = parse_acl_data(&rdev->wiphy, info);
3412 if (IS_ERR(params.acl))
3413 return PTR_ERR(params.acl);
3414 }
3415
18998c38
EP		 3416 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3417 params.smps_mode =
3418 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3419 switch (params.smps_mode) {
3420 case NL80211_SMPS_OFF:
3421 break;
3422 case NL80211_SMPS_STATIC:
3423 if (!(rdev->wiphy.features &
3424 NL80211_FEATURE_STATIC_SMPS))
3425 return -EINVAL;
3426 break;
3427 case NL80211_SMPS_DYNAMIC:
3428 if (!(rdev->wiphy.features &
3429 NL80211_FEATURE_DYNAMIC_SMPS))
3430 return -EINVAL;
3431 break;
3432 default:
3433 return -EINVAL;
3434 }
3435 } else {
3436 params.smps_mode = NL80211_SMPS_OFF;
3437 }
3438
c56589ed 3439 wdev_lock(wdev);
e35e4d28 3440 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3441 if (!err) {
683b6d3b 3442 wdev->preset_chandef = params.chandef;
8860020e 3443 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3444 wdev->chandef = params.chandef;
06e191e2
AQ		 3445 wdev->ssid_len = params.ssid_len;
3446 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3447 }
c56589ed 3448 wdev_unlock(wdev);
77765eaf
VT		 3449
3450 kfree(params.acl);
3451
56d1893d 3452 return err;
ed1b6cc7
JB		 3453}
3454
8860020e
JB		 3455static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3456{
3457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3458 struct net_device *dev = info->user_ptr[1];
3459 struct wireless_dev *wdev = dev->ieee80211_ptr;
3460 struct cfg80211_beacon_data params;
3461 int err;
3462
3463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3464 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3465 return -EOPNOTSUPP;
3466
3467 if (!rdev->ops->change_beacon)
3468 return -EOPNOTSUPP;
3469
3470 if (!wdev->beacon_interval)
3471 return -EINVAL;
3472
a1193be8 3473 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3474 if (err)
3475 return err;
3476
c56589ed
SW		 3477 wdev_lock(wdev);
3478 err = rdev_change_beacon(rdev, dev, &params);
3479 wdev_unlock(wdev);
3480
3481 return err;
8860020e
JB		 3482}
3483
3484static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3485{
4c476991
JB		 3486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3487 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3488
7c8d5e03 3489 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3490}
3491
5727ef1b
JB		 3492static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3493 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3494 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3495 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3496 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3497 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3498 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3499};
3500
eccb8e8f 3501static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3502 enum nl80211_iftype iftype,
eccb8e8f 3503 struct station_parameters *params)
5727ef1b
JB		 3504{
3505 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3506 struct nlattr *nla;
5727ef1b
JB		 3507 int flag;
3508
eccb8e8f
JB		 3509 /*
3510 * Try parsing the new attribute first so userspace
3511 * can specify both for older kernels.
3512 */
3513 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3514 if (nla) {
3515 struct nl80211_sta_flag_update *sta_flags;
3516
3517 sta_flags = nla_data(nla);
3518 params->sta_flags_mask = sta_flags->mask;
3519 params->sta_flags_set = sta_flags->set;
77ee7c89 3520 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3521 if ((params->sta_flags_mask |
3522 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3523 return -EINVAL;
3524 return 0;
3525 }
3526
3527 /* if present, parse the old attribute */
5727ef1b 3528
eccb8e8f 3529 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3530 if (!nla)
3531 return 0;
3532
3533 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3534 nla, sta_flags_policy))
3535 return -EINVAL;
3536
bdd3ae3d
JB		 3537 /*
3538 * Only allow certain flags for interface types so that
3539 * other attributes are silently ignored. Remember that
3540 * this is backward compatibility code with old userspace
3541 * and shouldn't be hit in other cases anyway.
3542 */
3543 switch (iftype) {
3544 case NL80211_IFTYPE_AP:
3545 case NL80211_IFTYPE_AP_VLAN:
3546 case NL80211_IFTYPE_P2P_GO:
3547 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3548 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3549 BIT(NL80211_STA_FLAG_WME) |
3550 BIT(NL80211_STA_FLAG_MFP);
3551 break;
3552 case NL80211_IFTYPE_P2P_CLIENT:
3553 case NL80211_IFTYPE_STATION:
3554 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3555 BIT(NL80211_STA_FLAG_TDLS_PEER);
3556 break;
3557 case NL80211_IFTYPE_MESH_POINT:
3558 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3559 BIT(NL80211_STA_FLAG_MFP) |
3560 BIT(NL80211_STA_FLAG_AUTHORIZED);
3561 default:
3562 return -EINVAL;
3563 }
5727ef1b 3564
3383b5a6
JB		 3565 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3566 if (flags[flag]) {
eccb8e8f 3567 params->sta_flags_set |= (1<<flag);
5727ef1b 3568
3383b5a6
JB		 3569 /* no longer support new API additions in old API */
3570 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3571 return -EINVAL;
3572 }
3573 }
3574
5727ef1b
JB		 3575 return 0;
3576}
3577
c8dcfd8a
FF		 3578static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3579 int attr)
3580{
3581 struct nlattr *rate;
8eb41c8d
VK		 3582 u32 bitrate;
3583 u16 bitrate_compat;
b51f3bee 3584 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3585
3586 rate = nla_nest_start(msg, attr);
3587 if (!rate)
db9c64cf 3588 return false;
c8dcfd8a
FF		 3589
3590 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3591 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3592 /* report 16-bit bitrate only if we can */
3593 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3594 if (bitrate > 0 &&
3595 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3596 return false;
3597 if (bitrate_compat > 0 &&
3598 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3599 return false;
3600
b51f3bee
JB		 3601 switch (info->bw) {
3602 case RATE_INFO_BW_5:
3603 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3604 break;
3605 case RATE_INFO_BW_10:
3606 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3607 break;
3608 default:
3609 WARN_ON(1);
3610 /* fall through */
3611 case RATE_INFO_BW_20:
3612 rate_flg = 0;
3613 break;
3614 case RATE_INFO_BW_40:
3615 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3616 break;
3617 case RATE_INFO_BW_80:
3618 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3619 break;
3620 case RATE_INFO_BW_160:
3621 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3622 break;
3623 }
3624
3625 if (rate_flg && nla_put_flag(msg, rate_flg))
3626 return false;
3627
db9c64cf
JB		 3628 if (info->flags & RATE_INFO_FLAGS_MCS) {
3629 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3630 return false;
db9c64cf
JB		 3631 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3632 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3633 return false;
3634 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3635 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3636 return false;
3637 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3638 return false;
db9c64cf
JB		 3639 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3640 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3641 return false;
3642 }
c8dcfd8a
FF		 3643
3644 nla_nest_end(msg, rate);
3645 return true;
c8dcfd8a
FF		 3646}
3647
119363c7
FF		 3648static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3649 int id)
3650{
3651 void *attr;
3652 int i = 0;
3653
3654 if (!mask)
3655 return true;
3656
3657 attr = nla_nest_start(msg, id);
3658 if (!attr)
3659 return false;
3660
3661 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3662 if (!(mask & BIT(i)))
3663 continue;
3664
3665 if (nla_put_u8(msg, i, signal[i]))
3666 return false;
3667 }
3668
3669 nla_nest_end(msg, attr);
3670
3671 return true;
3672}
3673
cf5ead82
JB		 3674static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3675 u32 seq, int flags,
66266b3a
JL		 3676 struct cfg80211_registered_device *rdev,
3677 struct net_device *dev,
98b62183 3678 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3679{
3680 void *hdr;
f4263c98 3681 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3682
cf5ead82 3683 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3684 if (!hdr)
3685 return -1;
3686
9360ffd1
DM		 3687 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3688 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3689 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3690 goto nla_put_failure;
f5ea9120 3691
2ec600d6
LCC		 3692 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3693 if (!sinfoattr)
fd5b74dc 3694 goto nla_put_failure;
319090bf
JB		 3695
3696#define PUT_SINFO(attr, memb, type) do { \
3697 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3698 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3699 sinfo->memb)) \
3700 goto nla_put_failure; \
3701 } while (0)
3702
3703 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3704 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3705
3706 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3707 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3708 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3709 (u32)sinfo->rx_bytes))
9360ffd1 3710 goto nla_put_failure;
319090bf
JB		 3711
3712 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3713 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3714 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3715 (u32)sinfo->tx_bytes))
3716 goto nla_put_failure;
319090bf
JB		 3717
3718 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3719 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3720 PUT_SINFO(LLID, llid, u16);
3721 PUT_SINFO(PLID, plid, u16);
3722 PUT_SINFO(PLINK_STATE, plink_state, u8);
3723
66266b3a
JL		 3724 switch (rdev->wiphy.signal_type) {
3725 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3726 PUT_SINFO(SIGNAL, signal, u8);
3727 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3728 break;
3729 default:
3730 break;
3731 }
319090bf 3732 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3733 if (!nl80211_put_signal(msg, sinfo->chains,
3734 sinfo->chain_signal,
3735 NL80211_STA_INFO_CHAIN_SIGNAL))
3736 goto nla_put_failure;
3737 }
319090bf 3738 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3739 if (!nl80211_put_signal(msg, sinfo->chains,
3740 sinfo->chain_signal_avg,
3741 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3742 goto nla_put_failure;
3743 }
319090bf 3744 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3745 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3746 NL80211_STA_INFO_TX_BITRATE))
3747 goto nla_put_failure;
3748 }
319090bf 3749 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3750 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3751 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3752 goto nla_put_failure;
420e7fab 3753 }
319090bf
JB		 3754
3755 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3756 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3757 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3758 PUT_SINFO(TX_FAILED, tx_failed, u32);
3759 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3760 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3761 PUT_SINFO(LOCAL_PM, local_pm, u32);
3762 PUT_SINFO(PEER_PM, peer_pm, u32);
3763 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3764
3765 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3766 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3767 if (!bss_param)
3768 goto nla_put_failure;
3769
9360ffd1
DM		 3770 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3771 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3772 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3773 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3774 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3775 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3776 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3777 sinfo->bss_param.dtim_period) ||
3778 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3779 sinfo->bss_param.beacon_interval))
3780 goto nla_put_failure;
f4263c98
PS		 3781
3782 nla_nest_end(msg, bss_param);
3783 }
319090bf 3784 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3785 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3786 sizeof(struct nl80211_sta_flag_update),
3787 &sinfo->sta_flags))
3788 goto nla_put_failure;
319090bf
JB		 3789
3790 PUT_SINFO(T_OFFSET, t_offset, u64);
3791 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3792 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3793 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3794
3795#undef PUT_SINFO
6de39808
JB		 3796
3797 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3798 struct nlattr *tidsattr;
3799 int tid;
3800
3801 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3802 if (!tidsattr)
3803 goto nla_put_failure;
3804
3805 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3806 struct cfg80211_tid_stats *tidstats;
3807 struct nlattr *tidattr;
3808
3809 tidstats = &sinfo->pertid[tid];
3810
3811 if (!tidstats->filled)
3812 continue;
3813
3814 tidattr = nla_nest_start(msg, tid + 1);
3815 if (!tidattr)
3816 goto nla_put_failure;
3817
3818#define PUT_TIDVAL(attr, memb, type) do { \
3819 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3820 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3821 tidstats->memb)) \
3822 goto nla_put_failure; \
3823 } while (0)
3824
3825 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3826 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3827 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3828 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3829
3830#undef PUT_TIDVAL
3831 nla_nest_end(msg, tidattr);
3832 }
3833
3834 nla_nest_end(msg, tidsattr);
3835 }
3836
2ec600d6 3837 nla_nest_end(msg, sinfoattr);
fd5b74dc 3838
319090bf 3839 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3840 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3841 sinfo->assoc_req_ies))
3842 goto nla_put_failure;
50d3dfb7 3843
053c095a
JB		 3844 genlmsg_end(msg, hdr);
3845 return 0;
fd5b74dc
JB		 3846
3847 nla_put_failure:
bc3ed28c
TG		 3848 genlmsg_cancel(msg, hdr);
3849 return -EMSGSIZE;
fd5b74dc
JB		 3850}
3851
2ec600d6 3852static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3853 struct netlink_callback *cb)
2ec600d6 3854{
2ec600d6 3855 struct station_info sinfo;
1b8ec87a 3856 struct cfg80211_registered_device *rdev;
97990a06 3857 struct wireless_dev *wdev;
2ec600d6 3858 u8 mac_addr[ETH_ALEN];
97990a06 3859 int sta_idx = cb->args[2];
2ec600d6 3860 int err;
2ec600d6 3861
1b8ec87a 3862 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3863 if (err)
3864 return err;
bba95fef 3865
97990a06
JB		 3866 if (!wdev->netdev) {
3867 err = -EINVAL;
3868 goto out_err;
3869 }
3870
1b8ec87a 3871 if (!rdev->ops->dump_station) {
eec60b03 3872 err = -EOPNOTSUPP;
bba95fef
JB		 3873 goto out_err;
3874 }
3875
bba95fef 3876 while (1) {
f612cedf 3877 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3878 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3879 mac_addr, &sinfo);
bba95fef
JB		 3880 if (err == -ENOENT)
3881 break;
3882 if (err)
3b85875a 3883 goto out_err;
bba95fef 3884
cf5ead82 3885 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3886 NETLINK_CB(cb->skb).portid,
bba95fef 3887 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3888 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3889 &sinfo) < 0)
3890 goto out;
3891
3892 sta_idx++;
3893 }
3894
3895
3896 out:
97990a06 3897 cb->args[2] = sta_idx;
bba95fef 3898 err = skb->len;
bba95fef 3899 out_err:
1b8ec87a 3900 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3901
3902 return err;
2ec600d6 3903}
fd5b74dc 3904
5727ef1b
JB		 3905static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3906{
4c476991
JB		 3907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3908 struct net_device *dev = info->user_ptr[1];
2ec600d6 3909 struct station_info sinfo;
fd5b74dc
JB		 3910 struct sk_buff *msg;
3911 u8 *mac_addr = NULL;
4c476991 3912 int err;
fd5b74dc 3913
2ec600d6 3914 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3915
3916 if (!info->attrs[NL80211_ATTR_MAC])
3917 return -EINVAL;
3918
3919 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3920
4c476991
JB		 3921 if (!rdev->ops->get_station)
3922 return -EOPNOTSUPP;
3b85875a 3923
e35e4d28 3924 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3925 if (err)
4c476991 3926 return err;
2ec600d6 3927
fd2120ca 3928 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3929 if (!msg)
4c476991 3930 return -ENOMEM;
fd5b74dc 3931
cf5ead82
JB		 3932 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3933 info->snd_portid, info->snd_seq, 0,
66266b3a 3934 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3935 nlmsg_free(msg);
3936 return -ENOBUFS;
3937 }
3b85875a 3938
4c476991 3939 return genlmsg_reply(msg, info);
5727ef1b
JB		 3940}
3941
77ee7c89
JB		 3942int cfg80211_check_station_change(struct wiphy *wiphy,
3943 struct station_parameters *params,
3944 enum cfg80211_station_type statype)
3945{
3946 if (params->listen_interval != -1)
3947 return -EINVAL;
c72e1140
AN		 3948 if (params->aid &&
3949 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3950 return -EINVAL;
3951
3952 /* When you run into this, adjust the code below for the new flag */
3953 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3954
3955 switch (statype) {
eef941e6
TP		 3956 case CFG80211_STA_MESH_PEER_KERNEL:
3957 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3958 /*
3959 * No ignoring the TDLS flag here -- the userspace mesh
3960 * code doesn't have the bug of including TDLS in the
3961 * mask everywhere.
3962 */
3963 if (params->sta_flags_mask &
3964 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3965 BIT(NL80211_STA_FLAG_MFP) |
3966 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3967 return -EINVAL;
3968 break;
3969 case CFG80211_STA_TDLS_PEER_SETUP:
3970 case CFG80211_STA_TDLS_PEER_ACTIVE:
3971 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3972 return -EINVAL;
3973 /* ignore since it can't change */
3974 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3975 break;
3976 default:
3977 /* disallow mesh-specific things */
3978 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3979 return -EINVAL;
3980 if (params->local_pm)
3981 return -EINVAL;
3982 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3983 return -EINVAL;
3984 }
3985
3986 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3987 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3988 /* TDLS can't be set, ... */
3989 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3990 return -EINVAL;
3991 /*
3992 * ... but don't bother the driver with it. This works around
3993 * a hostapd/wpa_supplicant issue -- it always includes the
3994 * TLDS_PEER flag in the mask even for AP mode.
3995 */
3996 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3997 }
3998
3999 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
4000 /* reject other things that can't change */
4001 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4002 return -EINVAL;
4003 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4004 return -EINVAL;
4005 if (params->supported_rates)
4006 return -EINVAL;
4007 if (params->ext_capab || params->ht_capa || params->vht_capa)
4008 return -EINVAL;
4009 }
4010
4011 if (statype != CFG80211_STA_AP_CLIENT) {
4012 if (params->vlan)
4013 return -EINVAL;
4014 }
4015
4016 switch (statype) {
4017 case CFG80211_STA_AP_MLME_CLIENT:
4018 /* Use this only for authorizing/unauthorizing a station */
4019 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4020 return -EOPNOTSUPP;
4021 break;
4022 case CFG80211_STA_AP_CLIENT:
4023 /* accept only the listed bits */
4024 if (params->sta_flags_mask &
4025 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4026 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4027 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4028 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4029 BIT(NL80211_STA_FLAG_WME) |
4030 BIT(NL80211_STA_FLAG_MFP)))
4031 return -EINVAL;
4032
4033 /* but authenticated/associated only if driver handles it */
4034 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4035 params->sta_flags_mask &
4036 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4037 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4038 return -EINVAL;
4039 break;
4040 case CFG80211_STA_IBSS:
4041 case CFG80211_STA_AP_STA:
4042 /* reject any changes other than AUTHORIZED */
4043 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4044 return -EINVAL;
4045 break;
4046 case CFG80211_STA_TDLS_PEER_SETUP:
4047 /* reject any changes other than AUTHORIZED or WME */
4048 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4049 BIT(NL80211_STA_FLAG_WME)))
4050 return -EINVAL;
4051 /* force (at least) rates when authorizing */
4052 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4053 !params->supported_rates)
4054 return -EINVAL;
4055 break;
4056 case CFG80211_STA_TDLS_PEER_ACTIVE:
4057 /* reject any changes */
4058 return -EINVAL;
eef941e6 4059 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4060 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4061 return -EINVAL;
4062 break;
eef941e6 4063 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4064 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4065 return -EINVAL;
4066 break;
4067 }
4068
4069 return 0;
4070}
4071EXPORT_SYMBOL(cfg80211_check_station_change);
4072
5727ef1b 4073/*
c258d2de 4074 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4075 */
80b99899
JB		 4076static struct net_device *get_vlan(struct genl_info *info,
4077 struct cfg80211_registered_device *rdev)
5727ef1b 4078{
463d0183 4079 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4080 struct net_device *v;
4081 int ret;
4082
4083 if (!vlanattr)
4084 return NULL;
4085
4086 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4087 if (!v)
4088 return ERR_PTR(-ENODEV);
4089
4090 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4091 ret = -EINVAL;
4092 goto error;
5727ef1b 4093 }
80b99899 4094
77ee7c89
JB		 4095 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4096 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4097 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4098 ret = -EINVAL;
4099 goto error;
4100 }
4101
80b99899
JB		 4102 if (!netif_running(v)) {
4103 ret = -ENETDOWN;
4104 goto error;
4105 }
4106
4107 return v;
4108 error:
4109 dev_put(v);
4110 return ERR_PTR(ret);
5727ef1b
JB		 4111}
4112
94e860f1
JB		 4113static const struct nla_policy
4114nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4115 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4116 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4117};
4118
ff276691
JB		 4119static int nl80211_parse_sta_wme(struct genl_info *info,
4120 struct station_parameters *params)
df881293 4121{
df881293
JM		 4122 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4123 struct nlattr *nla;
4124 int err;
4125
df881293
JM		 4126 /* parse WME attributes if present */
4127 if (!info->attrs[NL80211_ATTR_STA_WME])
4128 return 0;
4129
4130 nla = info->attrs[NL80211_ATTR_STA_WME];
4131 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4132 nl80211_sta_wme_policy);
4133 if (err)
4134 return err;
4135
4136 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4137 params->uapsd_queues = nla_get_u8(
4138 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4139 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4140 return -EINVAL;
4141
4142 if (tb[NL80211_STA_WME_MAX_SP])
4143 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4144
4145 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4146 return -EINVAL;
4147
4148 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4149
4150 return 0;
4151}
4152
c01fc9ad
SD		 4153static int nl80211_parse_sta_channel_info(struct genl_info *info,
4154 struct station_parameters *params)
4155{
4156 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4157 params->supported_channels =
4158 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4159 params->supported_channels_len =
4160 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4161 /*
4162 * Need to include at least one (first channel, number of
4163 * channels) tuple for each subband, and must have proper
4164 * tuples for the rest of the data as well.
4165 */
4166 if (params->supported_channels_len < 2)
4167 return -EINVAL;
4168 if (params->supported_channels_len % 2)
4169 return -EINVAL;
4170 }
4171
4172 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4173 params->supported_oper_classes =
4174 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4175 params->supported_oper_classes_len =
4176 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4177 /*
4178 * The value of the Length field of the Supported Operating
4179 * Classes element is between 2 and 253.
4180 */
4181 if (params->supported_oper_classes_len < 2 ||
4182 params->supported_oper_classes_len > 253)
4183 return -EINVAL;
4184 }
4185 return 0;
4186}
4187
ff276691
JB		 4188static int nl80211_set_station_tdls(struct genl_info *info,
4189 struct station_parameters *params)
4190{
c01fc9ad 4191 int err;
ff276691 4192 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4193 if (info->attrs[NL80211_ATTR_PEER_AID])
4194 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4195 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4196 params->ht_capa =
4197 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4198 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4199 params->vht_capa =
4200 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4201
c01fc9ad
SD		 4202 err = nl80211_parse_sta_channel_info(info, params);
4203 if (err)
4204 return err;
4205
ff276691
JB		 4206 return nl80211_parse_sta_wme(info, params);
4207}
4208
5727ef1b
JB		 4209static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4210{
4c476991 4211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4212 struct net_device *dev = info->user_ptr[1];
5727ef1b 4213 struct station_parameters params;
77ee7c89
JB		 4214 u8 *mac_addr;
4215 int err;
5727ef1b
JB		 4216
4217 memset(&params, 0, sizeof(params));
4218
4219 params.listen_interval = -1;
4220
77ee7c89
JB		 4221 if (!rdev->ops->change_station)
4222 return -EOPNOTSUPP;
4223
5727ef1b
JB		 4224 if (info->attrs[NL80211_ATTR_STA_AID])
4225 return -EINVAL;
4226
4227 if (!info->attrs[NL80211_ATTR_MAC])
4228 return -EINVAL;
4229
4230 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4231
4232 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4233 params.supported_rates =
4234 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4235 params.supported_rates_len =
4236 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4237 }
4238
9d62a986
JM		 4239 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4240 params.capability =
4241 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4242 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4243 }
4244
4245 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4246 params.ext_capab =
4247 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4248 params.ext_capab_len =
4249 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4250 }
4251
df881293 4252 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4253 return -EINVAL;
36aedc90 4254
bdd3ae3d 4255 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4256 return -EINVAL;
4257
f8bacc21 4258 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4259 params.plink_action =
f8bacc21
JB		 4260 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4261 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4262 return -EINVAL;
4263 }
2ec600d6 4264
f8bacc21 4265 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4266 params.plink_state =
f8bacc21
JB		 4267 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4268 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4269 return -EINVAL;
4270 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4271 }
9c3990aa 4272
3b1c5a53
MP		 4273 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4274 enum nl80211_mesh_power_mode pm = nla_get_u32(
4275 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4276
4277 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4278 pm > NL80211_MESH_POWER_MAX)
4279 return -EINVAL;
4280
4281 params.local_pm = pm;
4282 }
4283
77ee7c89
JB		 4284 /* Include parameters for TDLS peer (will check later) */
4285 err = nl80211_set_station_tdls(info, &params);
4286 if (err)
4287 return err;
4288
4289 params.vlan = get_vlan(info, rdev);
4290 if (IS_ERR(params.vlan))
4291 return PTR_ERR(params.vlan);
4292
a97f4424
JB		 4293 switch (dev->ieee80211_ptr->iftype) {
4294 case NL80211_IFTYPE_AP:
4295 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4296 case NL80211_IFTYPE_P2P_GO:
074ac8df 4297 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4298 case NL80211_IFTYPE_STATION:
267335d6 4299 case NL80211_IFTYPE_ADHOC:
a97f4424 4300 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4301 break;
4302 default:
77ee7c89
JB		 4303 err = -EOPNOTSUPP;
4304 goto out_put_vlan;
034d655e
JB		 4305 }
4306
77ee7c89 4307 /* driver will call cfg80211_check_station_change() */
e35e4d28 4308 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4309
77ee7c89 4310 out_put_vlan:
5727ef1b
JB		 4311 if (params.vlan)
4312 dev_put(params.vlan);
3b85875a 4313
5727ef1b
JB		 4314 return err;
4315}
4316
4317static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4318{
4c476991 4319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4320 int err;
4c476991 4321 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4322 struct station_parameters params;
4323 u8 *mac_addr = NULL;
4324
4325 memset(&params, 0, sizeof(params));
4326
984c311b
JB		 4327 if (!rdev->ops->add_station)
4328 return -EOPNOTSUPP;
4329
5727ef1b
JB		 4330 if (!info->attrs[NL80211_ATTR_MAC])
4331 return -EINVAL;
4332
5727ef1b
JB		 4333 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4334 return -EINVAL;
4335
4336 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4337 return -EINVAL;
4338
5e4b6f56
JM		 4339 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4340 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4341 return -EINVAL;
4342
5727ef1b
JB		 4343 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4344 params.supported_rates =
4345 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4346 params.supported_rates_len =
4347 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4348 params.listen_interval =
4349 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4350
3d124ea2 4351 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4352 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4353 else
4354 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4355 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4356 return -EINVAL;
51b50fbe 4357
9d62a986
JM		 4358 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4359 params.capability =
4360 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4361 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4362 }
4363
4364 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4365 params.ext_capab =
4366 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4367 params.ext_capab_len =
4368 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4369 }
4370
36aedc90
JM		 4371 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4372 params.ht_capa =
4373 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4374
f461be3e
MP		 4375 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4376 params.vht_capa =
4377 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4378
60f4a7b1
MK		 4379 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4380 params.opmode_notif_used = true;
4381 params.opmode_notif =
4382 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4383 }
4384
f8bacc21 4385 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4386 params.plink_action =
f8bacc21
JB		 4387 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4388 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4389 return -EINVAL;
4390 }
96b78dff 4391
c01fc9ad
SD		 4392 err = nl80211_parse_sta_channel_info(info, &params);
4393 if (err)
4394 return err;
4395
ff276691
JB		 4396 err = nl80211_parse_sta_wme(info, &params);
4397 if (err)
4398 return err;
bdd90d5e 4399
bdd3ae3d 4400 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4401 return -EINVAL;
4402
77ee7c89
JB		 4403 /* When you run into this, adjust the code below for the new flag */
4404 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4405
bdd90d5e
JB		 4406 switch (dev->ieee80211_ptr->iftype) {
4407 case NL80211_IFTYPE_AP:
4408 case NL80211_IFTYPE_AP_VLAN:
4409 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4410 /* ignore WME attributes if iface/sta is not capable */
4411 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4412 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4413 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4414
bdd90d5e 4415 /* TDLS peers cannot be added */
3d124ea2
JM		 4416 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4417 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4418 return -EINVAL;
bdd90d5e
JB		 4419 /* but don't bother the driver with it */
4420 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4421
d582cffb
JB		 4422 /* allow authenticated/associated only if driver handles it */
4423 if (!(rdev->wiphy.features &
4424 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4425 params.sta_flags_mask &
4426 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4427 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4428 return -EINVAL;
4429
bdd90d5e
JB		 4430 /* must be last in here for error handling */
4431 params.vlan = get_vlan(info, rdev);
4432 if (IS_ERR(params.vlan))
4433 return PTR_ERR(params.vlan);
4434 break;
4435 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4436 /* ignore uAPSD data */
4437 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4438
d582cffb
JB		 4439 /* associated is disallowed */
4440 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4441 return -EINVAL;
bdd90d5e 4442 /* TDLS peers cannot be added */
3d124ea2
JM		 4443 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4444 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4445 return -EINVAL;
4446 break;
4447 case NL80211_IFTYPE_STATION:
93d08f0b 4448 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4449 /* ignore uAPSD data */
4450 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4451
77ee7c89
JB		 4452 /* these are disallowed */
4453 if (params.sta_flags_mask &
4454 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4455 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4456 return -EINVAL;
bdd90d5e
JB		 4457 /* Only TDLS peers can be added */
4458 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4459 return -EINVAL;
4460 /* Can only add if TDLS ... */
4461 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4462 return -EOPNOTSUPP;
4463 /* ... with external setup is supported */
4464 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4465 return -EOPNOTSUPP;
77ee7c89
JB		 4466 /*
4467 * Older wpa_supplicant versions always mark the TDLS peer
4468 * as authorized, but it shouldn't yet be.
4469 */
4470 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4471 break;
4472 default:
4473 return -EOPNOTSUPP;
c75786c9
EP		 4474 }
4475
bdd90d5e 4476 /* be aware of params.vlan when changing code here */
5727ef1b 4477
e35e4d28 4478 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4479
5727ef1b
JB		 4480 if (params.vlan)
4481 dev_put(params.vlan);
5727ef1b
JB		 4482 return err;
4483}
4484
4485static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4486{
4c476991
JB		 4487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4488 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4489 struct station_del_parameters params;
4490
4491 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4492
4493 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4494 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4495
e80cf853 4496 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4498 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4499 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4500 return -EINVAL;
5727ef1b 4501
4c476991
JB		 4502 if (!rdev->ops->del_station)
4503 return -EOPNOTSUPP;
3b85875a 4504
98856866
JM		 4505 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4506 params.subtype =
4507 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4508 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4509 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4510 return -EINVAL;
4511 } else {
4512 /* Default to Deauthentication frame */
4513 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4514 }
4515
4516 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4517 params.reason_code =
4518 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4519 if (params.reason_code == 0)
4520 return -EINVAL; /* 0 is reserved */
4521 } else {
4522 /* Default to reason code 2 */
4523 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4524 }
4525
89c771e5 4526 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4527}
4528
15e47304 4529static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4530 int flags, struct net_device *dev,
4531 u8 *dst, u8 *next_hop,
4532 struct mpath_info *pinfo)
4533{
4534 void *hdr;
4535 struct nlattr *pinfoattr;
4536
1ef4c850 4537 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4538 if (!hdr)
4539 return -1;
4540
9360ffd1
DM		 4541 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4542 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4543 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4544 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4545 goto nla_put_failure;
f5ea9120 4546
2ec600d6
LCC		 4547 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4548 if (!pinfoattr)
4549 goto nla_put_failure;
9360ffd1
DM		 4550 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4551 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4552 pinfo->frame_qlen))
4553 goto nla_put_failure;
4554 if (((pinfo->filled & MPATH_INFO_SN) &&
4555 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4556 ((pinfo->filled & MPATH_INFO_METRIC) &&
4557 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4558 pinfo->metric)) ||
4559 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4560 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4561 pinfo->exptime)) ||
4562 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4563 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4564 pinfo->flags)) ||
4565 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4566 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4567 pinfo->discovery_timeout)) ||
4568 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4569 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4570 pinfo->discovery_retries)))
4571 goto nla_put_failure;
2ec600d6
LCC		 4572
4573 nla_nest_end(msg, pinfoattr);
4574
053c095a
JB		 4575 genlmsg_end(msg, hdr);
4576 return 0;
2ec600d6
LCC		 4577
4578 nla_put_failure:
bc3ed28c
TG		 4579 genlmsg_cancel(msg, hdr);
4580 return -EMSGSIZE;
2ec600d6
LCC		 4581}
4582
4583static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4584 struct netlink_callback *cb)
2ec600d6 4585{
2ec600d6 4586 struct mpath_info pinfo;
1b8ec87a 4587 struct cfg80211_registered_device *rdev;
97990a06 4588 struct wireless_dev *wdev;
2ec600d6
LCC		 4589 u8 dst[ETH_ALEN];
4590 u8 next_hop[ETH_ALEN];
97990a06 4591 int path_idx = cb->args[2];
2ec600d6 4592 int err;
2ec600d6 4593
1b8ec87a 4594 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4595 if (err)
4596 return err;
bba95fef 4597
1b8ec87a 4598 if (!rdev->ops->dump_mpath) {
eec60b03 4599 err = -EOPNOTSUPP;
bba95fef
JB		 4600 goto out_err;
4601 }
4602
97990a06 4603 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4604 err = -EOPNOTSUPP;
0448b5fc 4605 goto out_err;
eec60b03
JM		 4606 }
4607
bba95fef 4608 while (1) {
1b8ec87a 4609 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4610 next_hop, &pinfo);
bba95fef 4611 if (err == -ENOENT)
2ec600d6 4612 break;
bba95fef 4613 if (err)
3b85875a 4614 goto out_err;
2ec600d6 4615
15e47304 4616 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4617 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4618 wdev->netdev, dst, next_hop,
bba95fef
JB		 4619 &pinfo) < 0)
4620 goto out;
2ec600d6 4621
bba95fef 4622 path_idx++;
2ec600d6 4623 }
2ec600d6 4624
2ec600d6 4625
bba95fef 4626 out:
97990a06 4627 cb->args[2] = path_idx;
bba95fef 4628 err = skb->len;
bba95fef 4629 out_err:
1b8ec87a 4630 nl80211_finish_wdev_dump(rdev);
bba95fef 4631 return err;
2ec600d6
LCC		 4632}
4633
4634static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4635{
4c476991 4636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4637 int err;
4c476991 4638 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4639 struct mpath_info pinfo;
4640 struct sk_buff *msg;
4641 u8 *dst = NULL;
4642 u8 next_hop[ETH_ALEN];
4643
4644 memset(&pinfo, 0, sizeof(pinfo));
4645
4646 if (!info->attrs[NL80211_ATTR_MAC])
4647 return -EINVAL;
4648
4649 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4650
4c476991
JB		 4651 if (!rdev->ops->get_mpath)
4652 return -EOPNOTSUPP;
2ec600d6 4653
4c476991
JB		 4654 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4655 return -EOPNOTSUPP;
eec60b03 4656
e35e4d28 4657 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4658 if (err)
4c476991 4659 return err;
2ec600d6 4660
fd2120ca 4661 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4662 if (!msg)
4c476991 4663 return -ENOMEM;
2ec600d6 4664
15e47304 4665 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4666 dev, dst, next_hop, &pinfo) < 0) {
4667 nlmsg_free(msg);
4668 return -ENOBUFS;
4669 }
3b85875a 4670
4c476991 4671 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4672}
4673
4674static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4675{
4c476991
JB		 4676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4677 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4678 u8 *dst = NULL;
4679 u8 *next_hop = NULL;
4680
4681 if (!info->attrs[NL80211_ATTR_MAC])
4682 return -EINVAL;
4683
4684 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4685 return -EINVAL;
4686
4687 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4688 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4689
4c476991
JB		 4690 if (!rdev->ops->change_mpath)
4691 return -EOPNOTSUPP;
35a8efe1 4692
4c476991
JB		 4693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4694 return -EOPNOTSUPP;
2ec600d6 4695
e35e4d28 4696 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4697}
4c476991 4698
2ec600d6
LCC		 4699static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4700{
4c476991
JB		 4701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4702 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4703 u8 *dst = NULL;
4704 u8 *next_hop = NULL;
4705
4706 if (!info->attrs[NL80211_ATTR_MAC])
4707 return -EINVAL;
4708
4709 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4710 return -EINVAL;
4711
4712 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4713 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4714
4c476991
JB		 4715 if (!rdev->ops->add_mpath)
4716 return -EOPNOTSUPP;
35a8efe1 4717
4c476991
JB		 4718 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4719 return -EOPNOTSUPP;
2ec600d6 4720
e35e4d28 4721 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4722}
4723
4724static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4725{
4c476991
JB		 4726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4727 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4728 u8 *dst = NULL;
4729
4730 if (info->attrs[NL80211_ATTR_MAC])
4731 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4732
4c476991
JB		 4733 if (!rdev->ops->del_mpath)
4734 return -EOPNOTSUPP;
3b85875a 4735
e35e4d28 4736 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4737}
4738
66be7d2b
HR		 4739static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4740{
4741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4742 int err;
4743 struct net_device *dev = info->user_ptr[1];
4744 struct mpath_info pinfo;
4745 struct sk_buff *msg;
4746 u8 *dst = NULL;
4747 u8 mpp[ETH_ALEN];
4748
4749 memset(&pinfo, 0, sizeof(pinfo));
4750
4751 if (!info->attrs[NL80211_ATTR_MAC])
4752 return -EINVAL;
4753
4754 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4755
4756 if (!rdev->ops->get_mpp)
4757 return -EOPNOTSUPP;
4758
4759 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4760 return -EOPNOTSUPP;
4761
4762 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4763 if (err)
4764 return err;
4765
4766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4767 if (!msg)
4768 return -ENOMEM;
4769
4770 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4771 dev, dst, mpp, &pinfo) < 0) {
4772 nlmsg_free(msg);
4773 return -ENOBUFS;
4774 }
4775
4776 return genlmsg_reply(msg, info);
4777}
4778
4779static int nl80211_dump_mpp(struct sk_buff *skb,
4780 struct netlink_callback *cb)
4781{
4782 struct mpath_info pinfo;
4783 struct cfg80211_registered_device *rdev;
4784 struct wireless_dev *wdev;
4785 u8 dst[ETH_ALEN];
4786 u8 mpp[ETH_ALEN];
4787 int path_idx = cb->args[2];
4788 int err;
4789
4790 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4791 if (err)
4792 return err;
4793
4794 if (!rdev->ops->dump_mpp) {
4795 err = -EOPNOTSUPP;
4796 goto out_err;
4797 }
4798
4799 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4800 err = -EOPNOTSUPP;
4801 goto out_err;
4802 }
4803
4804 while (1) {
4805 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4806 mpp, &pinfo);
4807 if (err == -ENOENT)
4808 break;
4809 if (err)
4810 goto out_err;
4811
4812 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4813 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4814 wdev->netdev, dst, mpp,
4815 &pinfo) < 0)
4816 goto out;
4817
4818 path_idx++;
4819 }
4820
4821 out:
4822 cb->args[2] = path_idx;
4823 err = skb->len;
4824 out_err:
4825 nl80211_finish_wdev_dump(rdev);
4826 return err;
4827}
4828
9f1ba906
JM		 4829static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4830{
4c476991
JB		 4831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4832 struct net_device *dev = info->user_ptr[1];
c56589ed 4833 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4834 struct bss_parameters params;
c56589ed 4835 int err;
9f1ba906
JM		 4836
4837 memset(&params, 0, sizeof(params));
4838 /* default to not changing parameters */
4839 params.use_cts_prot = -1;
4840 params.use_short_preamble = -1;
4841 params.use_short_slot_time = -1;
fd8aaaf3 4842 params.ap_isolate = -1;
50b12f59 4843 params.ht_opmode = -1;
53cabad7
JB		 4844 params.p2p_ctwindow = -1;
4845 params.p2p_opp_ps = -1;
9f1ba906
JM		 4846
4847 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4848 params.use_cts_prot =
4849 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4850 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4851 params.use_short_preamble =
4852 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4853 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4854 params.use_short_slot_time =
4855 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4856 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4857 params.basic_rates =
4858 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4859 params.basic_rates_len =
4860 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4861 }
fd8aaaf3
FF		 4862 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4863 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4864 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4865 params.ht_opmode =
4866 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4867
53cabad7
JB		 4868 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4869 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4870 return -EINVAL;
4871 params.p2p_ctwindow =
4872 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4873 if (params.p2p_ctwindow < 0)
4874 return -EINVAL;
4875 if (params.p2p_ctwindow != 0 &&
4876 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4877 return -EINVAL;
4878 }
4879
4880 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4881 u8 tmp;
4882
4883 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4884 return -EINVAL;
4885 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4886 if (tmp > 1)
4887 return -EINVAL;
4888 params.p2p_opp_ps = tmp;
4889 if (params.p2p_opp_ps &&
4890 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4891 return -EINVAL;
4892 }
4893
4c476991
JB		 4894 if (!rdev->ops->change_bss)
4895 return -EOPNOTSUPP;
9f1ba906 4896
074ac8df 4897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4899 return -EOPNOTSUPP;
3b85875a 4900
c56589ed
SW		 4901 wdev_lock(wdev);
4902 err = rdev_change_bss(rdev, dev, &params);
4903 wdev_unlock(wdev);
4904
4905 return err;
9f1ba906
JM		 4906}
4907
b54452b0 4908static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4909 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4910 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4911 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4912 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4913 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4914 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4915 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4916};
4917
4918static int parse_reg_rule(struct nlattr *tb[],
4919 struct ieee80211_reg_rule *reg_rule)
4920{
4921 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4922 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4923
4924 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4925 return -EINVAL;
4926 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4927 return -EINVAL;
4928 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4929 return -EINVAL;
b0dfd2ea
JD		 4930 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4931 return -EINVAL;
b2e1b302
LR		 4932 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4933 return -EINVAL;
4934
4935 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4936
4937 freq_range->start_freq_khz =
4938 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4939 freq_range->end_freq_khz =
4940 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4941 freq_range->max_bandwidth_khz =
4942 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4943
4944 power_rule->max_eirp =
4945 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4946
4947 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4948 power_rule->max_antenna_gain =
4949 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4950
089027e5
JD		 4951 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4952 reg_rule->dfs_cac_ms =
4953 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4954
b2e1b302
LR		 4955 return 0;
4956}
4957
4958static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4959{
b2e1b302 4960 char *data = NULL;
57b5ce07 4961 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4962
80778f18
LR		 4963 /*
4964 * You should only get this when cfg80211 hasn't yet initialized
4965 * completely when built-in to the kernel right between the time
4966 * window between nl80211_init() and regulatory_init(), if that is
4967 * even possible.
4968 */
458f4f9e 4969 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4970 return -EINPROGRESS;
80778f18 4971
57b5ce07
LR		 4972 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4973 user_reg_hint_type =
4974 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4975 else
4976 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4977
4978 switch (user_reg_hint_type) {
4979 case NL80211_USER_REG_HINT_USER:
4980 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4981 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4982 return -EINVAL;
4983
4984 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4985 return regulatory_hint_user(data, user_reg_hint_type);
4986 case NL80211_USER_REG_HINT_INDOOR:
4987 return regulatory_hint_indoor_user();
57b5ce07
LR		 4988 default:
4989 return -EINVAL;
4990 }
b2e1b302
LR		 4991}
4992
24bdd9f4 4993static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4994 struct genl_info *info)
93da9cc1 4995{
4c476991 4996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4997 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4998 struct wireless_dev *wdev = dev->ieee80211_ptr;
4999 struct mesh_config cur_params;
5000 int err = 0;
93da9cc1 5001 void *hdr;
5002 struct nlattr *pinfoattr;
5003 struct sk_buff *msg;
5004
29cbe68c
JB		 5005 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5006 return -EOPNOTSUPP;
5007
24bdd9f4 5008 if (!rdev->ops->get_mesh_config)
4c476991 5009 return -EOPNOTSUPP;
f3f92586 5010
29cbe68c
JB		 5011 wdev_lock(wdev);
5012 /* If not connected, get default parameters */
5013 if (!wdev->mesh_id_len)
5014 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5015 else
e35e4d28 5016 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5017 wdev_unlock(wdev);
5018
93da9cc1 5019 if (err)
4c476991 5020 return err;
93da9cc1 5021
5022 /* Draw up a netlink message to send back */
fd2120ca 5023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5024 if (!msg)
5025 return -ENOMEM;
15e47304 5026 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5027 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5028 if (!hdr)
efe1cf0c 5029 goto out;
24bdd9f4 5030 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5031 if (!pinfoattr)
5032 goto nla_put_failure;
9360ffd1
DM		 5033 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5034 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5035 cur_params.dot11MeshRetryTimeout) ||
5036 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5037 cur_params.dot11MeshConfirmTimeout) ||
5038 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5039 cur_params.dot11MeshHoldingTimeout) ||
5040 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5041 cur_params.dot11MeshMaxPeerLinks) ||
5042 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5043 cur_params.dot11MeshMaxRetries) ||
5044 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5045 cur_params.dot11MeshTTL) ||
5046 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5047 cur_params.element_ttl) ||
5048 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5049 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5050 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5051 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5052 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5053 cur_params.dot11MeshHWMPmaxPREQretries) ||
5054 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5055 cur_params.path_refresh_time) ||
5056 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5057 cur_params.min_discovery_timeout) ||
5058 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5059 cur_params.dot11MeshHWMPactivePathTimeout) ||
5060 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5061 cur_params.dot11MeshHWMPpreqMinInterval) ||
5062 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5063 cur_params.dot11MeshHWMPperrMinInterval) ||
5064 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5065 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5066 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5067 cur_params.dot11MeshHWMPRootMode) ||
5068 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5069 cur_params.dot11MeshHWMPRannInterval) ||
5070 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5071 cur_params.dot11MeshGateAnnouncementProtocol) ||
5072 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5073 cur_params.dot11MeshForwarding) ||
5074 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5075 cur_params.rssi_threshold) ||
5076 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5077 cur_params.ht_opmode) ||
5078 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5079 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5080 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5081 cur_params.dot11MeshHWMProotInterval) ||
5082 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5083 cur_params.dot11MeshHWMPconfirmationInterval) ||
5084 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5085 cur_params.power_mode) ||
5086 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5087 cur_params.dot11MeshAwakeWindowDuration) ||
5088 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5089 cur_params.plink_timeout))
9360ffd1 5090 goto nla_put_failure;
93da9cc1 5091 nla_nest_end(msg, pinfoattr);
5092 genlmsg_end(msg, hdr);
4c476991 5093 return genlmsg_reply(msg, info);
93da9cc1 5094
3b85875a 5095 nla_put_failure:
93da9cc1 5096 genlmsg_cancel(msg, hdr);
efe1cf0c 5097 out:
d080e275 5098 nlmsg_free(msg);
4c476991 5099 return -ENOBUFS;
93da9cc1 5100}
5101
b54452b0 5102static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5103 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5104 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5105 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5106 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5107 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5108 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5109 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5110 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5111 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5112 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5113 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5114 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5115 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5116 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5117 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5118 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5119 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5120 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5121 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5122 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5123 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5124 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5125 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5126 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5127 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5128 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5129 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5130 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5131};
5132
c80d545d
JC		 5133static const struct nla_policy
5134 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5135 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5136 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5137 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5138 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5139 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5140 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5141 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5142 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5143 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5144};
5145
24bdd9f4 5146static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5147 struct mesh_config *cfg,
5148 u32 *mask_out)
93da9cc1 5149{
93da9cc1 5150 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5151 u32 mask = 0;
93da9cc1 5152
ea54fba2
MP		 5153#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5154do { \
5155 if (tb[attr]) { \
5156 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5157 return -EINVAL; \
5158 cfg->param = fn(tb[attr]); \
5159 mask |= (1 << (attr - 1)); \
5160 } \
5161} while (0)
bd90fdcc
JB		 5162
5163
24bdd9f4 5164 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5165 return -EINVAL;
5166 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5167 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5168 nl80211_meshconf_params_policy))
93da9cc1 5169 return -EINVAL;
5170
93da9cc1 5171 /* This makes sure that there aren't more than 32 mesh config
5172 * parameters (otherwise our bitfield scheme would not work.) */
5173 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5174
5175 /* Fill in the params struct */
ea54fba2 5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5177 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5178 nla_get_u16);
ea54fba2 5179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5180 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5181 nla_get_u16);
ea54fba2 5182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5183 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5184 nla_get_u16);
ea54fba2 5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5186 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5187 nla_get_u16);
ea54fba2 5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5189 mask, NL80211_MESHCONF_MAX_RETRIES,
5190 nla_get_u8);
ea54fba2 5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5192 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5194 mask, NL80211_MESHCONF_ELEMENT_TTL,
5195 nla_get_u8);
ea54fba2 5196 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5197 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5198 nla_get_u8);
ea54fba2
MP		 5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5200 1, 255, mask,
a4f606ea
CYY		 5201 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5202 nla_get_u32);
ea54fba2 5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5204 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5205 nla_get_u8);
ea54fba2 5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5207 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5208 nla_get_u32);
ea54fba2 5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5210 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5211 nla_get_u16);
ea54fba2
MP		 5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5213 1, 65535, mask,
a4f606ea
CYY		 5214 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5215 nla_get_u32);
93da9cc1 5216 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5217 1, 65535, mask,
5218 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5219 nla_get_u16);
dca7e943 5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5221 1, 65535, mask,
5222 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5223 nla_get_u16);
93da9cc1 5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5225 dot11MeshHWMPnetDiameterTraversalTime,
5226 1, 65535, mask,
a4f606ea
CYY		 5227 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5228 nla_get_u16);
ea54fba2
MP		 5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5230 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5231 nla_get_u8);
5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5233 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5234 nla_get_u16);
63c5723b 5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5236 dot11MeshGateAnnouncementProtocol, 0, 1,
5237 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5238 nla_get_u8);
ea54fba2 5239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5240 mask, NL80211_MESHCONF_FORWARDING,
5241 nla_get_u8);
83374fe9 5242 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5243 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5244 nla_get_s32);
ea54fba2 5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5246 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5247 nla_get_u16);
5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5249 1, 65535, mask,
ac1073a6
CYY		 5250 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5251 nla_get_u32);
ea54fba2 5252 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5253 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5254 nla_get_u16);
5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5256 dot11MeshHWMPconfirmationInterval,
5257 1, 65535, mask,
728b19e5 5258 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5259 nla_get_u16);
3b1c5a53
MP		 5260 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5261 NL80211_MESH_POWER_ACTIVE,
5262 NL80211_MESH_POWER_MAX,
5263 mask, NL80211_MESHCONF_POWER_MODE,
5264 nla_get_u32);
5265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5266 0, 65535, mask,
5267 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
31f909a2 5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
8e7c0538
CT		 5269 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5270 nla_get_u32);
bd90fdcc
JB		 5271 if (mask_out)
5272 *mask_out = mask;
c80d545d 5273
bd90fdcc
JB		 5274 return 0;
5275
5276#undef FILL_IN_MESH_PARAM_IF_SET
5277}
5278
c80d545d
JC		 5279static int nl80211_parse_mesh_setup(struct genl_info *info,
5280 struct mesh_setup *setup)
5281{
bb2798d4 5282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5283 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5284
5285 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5286 return -EINVAL;
5287 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5288 info->attrs[NL80211_ATTR_MESH_SETUP],
5289 nl80211_mesh_setup_params_policy))
5290 return -EINVAL;
5291
d299a1f2
JC		 5292 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5293 setup->sync_method =
5294 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5295 IEEE80211_SYNC_METHOD_VENDOR :
5296 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5297
c80d545d
JC		 5298 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5299 setup->path_sel_proto =
5300 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5301 IEEE80211_PATH_PROTOCOL_VENDOR :
5302 IEEE80211_PATH_PROTOCOL_HWMP;
5303
5304 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5305 setup->path_metric =
5306 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5307 IEEE80211_PATH_METRIC_VENDOR :
5308 IEEE80211_PATH_METRIC_AIRTIME;
5309
581a8b0f
JC		 5310
5311 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5312 struct nlattr *ieattr =
581a8b0f 5313 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5314 if (!is_valid_ie_attr(ieattr))
5315 return -EINVAL;
581a8b0f
JC		 5316 setup->ie = nla_data(ieattr);
5317 setup->ie_len = nla_len(ieattr);
c80d545d 5318 }
bb2798d4
TP		 5319 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5320 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5321 return -EINVAL;
5322 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5323 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5324 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5325 if (setup->is_secure)
5326 setup->user_mpm = true;
c80d545d 5327
6e16d90b
CT		 5328 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5329 if (!setup->user_mpm)
5330 return -EINVAL;
5331 setup->auth_id =
5332 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5333 }
5334
c80d545d
JC		 5335 return 0;
5336}
5337
24bdd9f4 5338static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5339 struct genl_info *info)
bd90fdcc
JB		 5340{
5341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5342 struct net_device *dev = info->user_ptr[1];
29cbe68c 5343 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5344 struct mesh_config cfg;
5345 u32 mask;
5346 int err;
5347
29cbe68c
JB		 5348 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5349 return -EOPNOTSUPP;
5350
24bdd9f4 5351 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5352 return -EOPNOTSUPP;
5353
24bdd9f4 5354 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5355 if (err)
5356 return err;
5357
29cbe68c
JB		 5358 wdev_lock(wdev);
5359 if (!wdev->mesh_id_len)
5360 err = -ENOLINK;
5361
5362 if (!err)
e35e4d28 5363 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5364
5365 wdev_unlock(wdev);
5366
5367 return err;
93da9cc1 5368}
5369
ad30ca2c
AN		 5370static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5371 struct sk_buff *msg)
f130347c 5372{
f130347c
LR		 5373 struct nlattr *nl_reg_rules;
5374 unsigned int i;
f130347c 5375
458f4f9e
JB		 5376 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5377 (regdom->dfs_region &&
5378 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5379 goto nla_put_failure;
458f4f9e 5380
f130347c
LR		 5381 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5382 if (!nl_reg_rules)
ad30ca2c 5383 goto nla_put_failure;
f130347c 5384
458f4f9e 5385 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5386 struct nlattr *nl_reg_rule;
5387 const struct ieee80211_reg_rule *reg_rule;
5388 const struct ieee80211_freq_range *freq_range;
5389 const struct ieee80211_power_rule *power_rule;
97524820 5390 unsigned int max_bandwidth_khz;
f130347c 5391
458f4f9e 5392 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5393 freq_range = &reg_rule->freq_range;
5394 power_rule = &reg_rule->power_rule;
5395
5396 nl_reg_rule = nla_nest_start(msg, i);
5397 if (!nl_reg_rule)
ad30ca2c 5398 goto nla_put_failure;
f130347c 5399
97524820
JD		 5400 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5401 if (!max_bandwidth_khz)
5402 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5403 reg_rule);
5404
9360ffd1
DM		 5405 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5406 reg_rule->flags) ||
5407 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5408 freq_range->start_freq_khz) ||
5409 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5410 freq_range->end_freq_khz) ||
5411 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5412 max_bandwidth_khz) ||
9360ffd1
DM		 5413 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5414 power_rule->max_antenna_gain) ||
5415 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5416 power_rule->max_eirp) ||
5417 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5418 reg_rule->dfs_cac_ms))
ad30ca2c 5419 goto nla_put_failure;
f130347c
LR		 5420
5421 nla_nest_end(msg, nl_reg_rule);
5422 }
5423
5424 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5425 return 0;
5426
5427nla_put_failure:
5428 return -EMSGSIZE;
5429}
5430
5431static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5432{
5433 const struct ieee80211_regdomain *regdom = NULL;
5434 struct cfg80211_registered_device *rdev;
5435 struct wiphy *wiphy = NULL;
5436 struct sk_buff *msg;
5437 void *hdr;
5438
5439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5440 if (!msg)
5441 return -ENOBUFS;
5442
5443 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5444 NL80211_CMD_GET_REG);
5445 if (!hdr)
5446 goto put_failure;
5447
5448 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5449 bool self_managed;
5450
ad30ca2c
AN		 5451 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5452 if (IS_ERR(rdev)) {
5453 nlmsg_free(msg);
5454 return PTR_ERR(rdev);
5455 }
5456
5457 wiphy = &rdev->wiphy;
1bdd716c
AN		 5458 self_managed = wiphy->regulatory_flags &
5459 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5460 regdom = get_wiphy_regdom(wiphy);
5461
1bdd716c
AN		 5462 /* a self-managed-reg device must have a private regdom */
5463 if (WARN_ON(!regdom && self_managed)) {
5464 nlmsg_free(msg);
5465 return -EINVAL;
5466 }
5467
ad30ca2c
AN		 5468 if (regdom &&
5469 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5470 goto nla_put_failure;
5471 }
5472
5473 if (!wiphy && reg_last_request_cell_base() &&
5474 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5475 NL80211_USER_REG_HINT_CELL_BASE))
5476 goto nla_put_failure;
5477
5478 rcu_read_lock();
5479
5480 if (!regdom)
5481 regdom = rcu_dereference(cfg80211_regdomain);
5482
5483 if (nl80211_put_regdom(regdom, msg))
5484 goto nla_put_failure_rcu;
5485
5486 rcu_read_unlock();
f130347c
LR		 5487
5488 genlmsg_end(msg, hdr);
5fe231e8 5489 return genlmsg_reply(msg, info);
f130347c 5490
458f4f9e
JB		 5491nla_put_failure_rcu:
5492 rcu_read_unlock();
f130347c
LR		 5493nla_put_failure:
5494 genlmsg_cancel(msg, hdr);
efe1cf0c 5495put_failure:
d080e275 5496 nlmsg_free(msg);
5fe231e8 5497 return -EMSGSIZE;
f130347c
LR		 5498}
5499
ad30ca2c
AN		 5500static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5501 u32 seq, int flags, struct wiphy *wiphy,
5502 const struct ieee80211_regdomain *regdom)
5503{
5504 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5505 NL80211_CMD_GET_REG);
5506
5507 if (!hdr)
5508 return -1;
5509
5510 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5511
5512 if (nl80211_put_regdom(regdom, msg))
5513 goto nla_put_failure;
5514
5515 if (!wiphy && reg_last_request_cell_base() &&
5516 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5517 NL80211_USER_REG_HINT_CELL_BASE))
5518 goto nla_put_failure;
5519
5520 if (wiphy &&
5521 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5522 goto nla_put_failure;
5523
1bdd716c
AN		 5524 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5525 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5526 goto nla_put_failure;
5527
053c095a
JB		 5528 genlmsg_end(msg, hdr);
5529 return 0;
ad30ca2c
AN		 5530
5531nla_put_failure:
5532 genlmsg_cancel(msg, hdr);
5533 return -EMSGSIZE;
5534}
5535
5536static int nl80211_get_reg_dump(struct sk_buff *skb,
5537 struct netlink_callback *cb)
5538{
5539 const struct ieee80211_regdomain *regdom = NULL;
5540 struct cfg80211_registered_device *rdev;
5541 int err, reg_idx, start = cb->args[2];
5542
5543 rtnl_lock();
5544
5545 if (cfg80211_regdomain && start == 0) {
5546 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5547 NLM_F_MULTI, NULL,
5548 rtnl_dereference(cfg80211_regdomain));
5549 if (err < 0)
5550 goto out_err;
5551 }
5552
5553 /* the global regdom is idx 0 */
5554 reg_idx = 1;
5555 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5556 regdom = get_wiphy_regdom(&rdev->wiphy);
5557 if (!regdom)
5558 continue;
5559
5560 if (++reg_idx <= start)
5561 continue;
5562
5563 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5564 NLM_F_MULTI, &rdev->wiphy, regdom);
5565 if (err < 0) {
5566 reg_idx--;
5567 break;
5568 }
5569 }
5570
5571 cb->args[2] = reg_idx;
5572 err = skb->len;
5573out_err:
5574 rtnl_unlock();
5575 return err;
5576}
5577
b2e1b302
LR		 5578static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5579{
5580 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5581 struct nlattr *nl_reg_rule;
ea372c54
JB		 5582 char *alpha2;
5583 int rem_reg_rules, r;
b2e1b302 5584 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5585 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5586 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5587
5588 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5589 return -EINVAL;
5590
5591 if (!info->attrs[NL80211_ATTR_REG_RULES])
5592 return -EINVAL;
5593
5594 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5595
8b60b078
LR		 5596 if (info->attrs[NL80211_ATTR_DFS_REGION])
5597 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5598
b2e1b302 5599 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5600 rem_reg_rules) {
b2e1b302
LR		 5601 num_rules++;
5602 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5603 return -EINVAL;
b2e1b302
LR		 5604 }
5605
e438768f
LR		 5606 if (!reg_is_valid_request(alpha2))
5607 return -EINVAL;
5608
b2e1b302 5609 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5610 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5611
5612 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5613 if (!rd)
5614 return -ENOMEM;
b2e1b302
LR		 5615
5616 rd->n_reg_rules = num_rules;
5617 rd->alpha2[0] = alpha2[0];
5618 rd->alpha2[1] = alpha2[1];
5619
8b60b078
LR		 5620 /*
5621 * Disable DFS master mode if the DFS region was
5622 * not supported or known on this kernel.
5623 */
5624 if (reg_supported_dfs_region(dfs_region))
5625 rd->dfs_region = dfs_region;
5626
b2e1b302 5627 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5628 rem_reg_rules) {
ae811e21
JB		 5629 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5630 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5631 reg_rule_policy);
5632 if (r)
5633 goto bad_reg;
b2e1b302
LR		 5634 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5635 if (r)
5636 goto bad_reg;
5637
5638 rule_idx++;
5639
d0e18f83
LR		 5640 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5641 r = -EINVAL;
b2e1b302 5642 goto bad_reg;
d0e18f83 5643 }
b2e1b302
LR		 5644 }
5645
b2e1b302 5646 r = set_regdom(rd);
6913b49a 5647 /* set_regdom took ownership */
1a919318 5648 rd = NULL;
b2e1b302 5649
d2372b31 5650 bad_reg:
b2e1b302 5651 kfree(rd);
d0e18f83 5652 return r;
b2e1b302
LR		 5653}
5654
83f5e2cf
JB		 5655static int validate_scan_freqs(struct nlattr *freqs)
5656{
5657 struct nlattr *attr1, *attr2;
5658 int n_channels = 0, tmp1, tmp2;
5659
5660 nla_for_each_nested(attr1, freqs, tmp1) {
5661 n_channels++;
5662 /*
5663 * Some hardware has a limited channel list for
5664 * scanning, and it is pretty much nonsensical
5665 * to scan for a channel twice, so disallow that
5666 * and don't require drivers to check that the
5667 * channel list they get isn't longer than what
5668 * they can scan, as long as they can scan all
5669 * the channels they registered at once.
5670 */
5671 nla_for_each_nested(attr2, freqs, tmp2)
5672 if (attr1 != attr2 &&
5673 nla_get_u32(attr1) == nla_get_u32(attr2))
5674 return 0;
5675 }
5676
5677 return n_channels;
5678}
5679
ad2b26ab
JB		 5680static int nl80211_parse_random_mac(struct nlattr **attrs,
5681 u8 *mac_addr, u8 *mac_addr_mask)
5682{
5683 int i;
5684
5685 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5686 memset(mac_addr, 0, ETH_ALEN);
5687 memset(mac_addr_mask, 0, ETH_ALEN);
5688 mac_addr[0] = 0x2;
5689 mac_addr_mask[0] = 0x3;
5690
5691 return 0;
5692 }
5693
5694 /* need both or none */
5695 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5696 return -EINVAL;
5697
5698 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5699 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5700
5701 /* don't allow or configure an mcast address */
5702 if (!is_multicast_ether_addr(mac_addr_mask) ||
5703 is_multicast_ether_addr(mac_addr))
5704 return -EINVAL;
5705
5706 /*
5707 * allow users to pass a MAC address that has bits set outside
5708 * of the mask, but don't bother drivers with having to deal
5709 * with such bits
5710 */
5711 for (i = 0; i < ETH_ALEN; i++)
5712 mac_addr[i] &= mac_addr_mask[i];
5713
5714 return 0;
5715}
5716
2a519311
JB		 5717static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5718{
4c476991 5719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5720 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5721 struct cfg80211_scan_request *request;
2a519311
JB		 5722 struct nlattr *attr;
5723 struct wiphy *wiphy;
83f5e2cf 5724 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5725 size_t ie_len;
2a519311 5726
f4a11bb0
JB		 5727 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5728 return -EINVAL;
5729
79c97e97 5730 wiphy = &rdev->wiphy;
2a519311 5731
4c476991
JB		 5732 if (!rdev->ops->scan)
5733 return -EOPNOTSUPP;
2a519311 5734
f9d15d16 5735 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5736 err = -EBUSY;
5737 goto unlock;
5738 }
2a519311
JB		 5739
5740 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5741 n_channels = validate_scan_freqs(
5742 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5743 if (!n_channels) {
5744 err = -EINVAL;
5745 goto unlock;
5746 }
2a519311 5747 } else {
bdfbec2d 5748 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5749 }
5750
5751 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5752 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5753 n_ssids++;
5754
f9f47529
JB		 5755 if (n_ssids > wiphy->max_scan_ssids) {
5756 err = -EINVAL;
5757 goto unlock;
5758 }
2a519311 5759
70692ad2
JM		 5760 if (info->attrs[NL80211_ATTR_IE])
5761 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5762 else
5763 ie_len = 0;
5764
f9f47529
JB		 5765 if (ie_len > wiphy->max_scan_ie_len) {
5766 err = -EINVAL;
5767 goto unlock;
5768 }
18a83659 5769
2a519311 5770 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5771 + sizeof(*request->ssids) * n_ssids
5772 + sizeof(*request->channels) * n_channels
70692ad2 5773 + ie_len, GFP_KERNEL);
f9f47529
JB		 5774 if (!request) {
5775 err = -ENOMEM;
5776 goto unlock;
5777 }
2a519311 5778
2a519311 5779 if (n_ssids)
5ba63533 5780 request->ssids = (void *)&request->channels[n_channels];
2a519311 5781 request->n_ssids = n_ssids;
70692ad2 5782 if (ie_len) {
13874e4b 5783 if (n_ssids)
70692ad2
JM		 5784 request->ie = (void *)(request->ssids + n_ssids);
5785 else
5786 request->ie = (void *)(request->channels + n_channels);
5787 }
2a519311 5788
584991dc 5789 i = 0;
2a519311
JB		 5790 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5791 /* user specified, bail out if channel not found */
2a519311 5792 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5793 struct ieee80211_channel *chan;
5794
5795 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5796
5797 if (!chan) {
2a519311
JB		 5798 err = -EINVAL;
5799 goto out_free;
5800 }
584991dc
JB		 5801
5802 /* ignore disabled channels */
5803 if (chan->flags & IEEE80211_CHAN_DISABLED)
5804 continue;
5805
5806 request->channels[i] = chan;
2a519311
JB		 5807 i++;
5808 }
5809 } else {
34850ab2
JB		 5810 enum ieee80211_band band;
5811
2a519311 5812 /* all channels */
2a519311
JB		 5813 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5814 int j;
5815 if (!wiphy->bands[band])
5816 continue;
5817 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5818 struct ieee80211_channel *chan;
5819
5820 chan = &wiphy->bands[band]->channels[j];
5821
5822 if (chan->flags & IEEE80211_CHAN_DISABLED)
5823 continue;
5824
5825 request->channels[i] = chan;
2a519311
JB		 5826 i++;
5827 }
5828 }
5829 }
5830
584991dc
JB		 5831 if (!i) {
5832 err = -EINVAL;
5833 goto out_free;
5834 }
5835
5836 request->n_channels = i;
5837
2a519311 5838 i = 0;
13874e4b 5839 if (n_ssids) {
2a519311 5840 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5841 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5842 err = -EINVAL;
5843 goto out_free;
5844 }
57a27e1d 5845 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5846 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5847 i++;
5848 }
5849 }
5850
70692ad2
JM		 5851 if (info->attrs[NL80211_ATTR_IE]) {
5852 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5853 memcpy((void *)request->ie,
5854 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5855 request->ie_len);
5856 }
5857
34850ab2 5858 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5859 if (wiphy->bands[i])
5860 request->rates[i] =
5861 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5862
5863 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5864 nla_for_each_nested(attr,
5865 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5866 tmp) {
5867 enum ieee80211_band band = nla_type(attr);
5868
84404623 5869 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5870 err = -EINVAL;
5871 goto out_free;
5872 }
1b09cd82
FF		 5873
5874 if (!wiphy->bands[band])
5875 continue;
5876
34850ab2
JB		 5877 err = ieee80211_get_ratemask(wiphy->bands[band],
5878 nla_data(attr),
5879 nla_len(attr),
5880 &request->rates[band]);
5881 if (err)
5882 goto out_free;
5883 }
5884 }
5885
46856bbf 5886 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5887 request->flags = nla_get_u32(
5888 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5889 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5890 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5891 err = -EOPNOTSUPP;
5892 goto out_free;
5893 }
ad2b26ab
JB		 5894
5895 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5896 if (!(wiphy->features &
5897 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5898 err = -EOPNOTSUPP;
5899 goto out_free;
5900 }
5901
5902 if (wdev->current_bss) {
5903 err = -EOPNOTSUPP;
5904 goto out_free;
5905 }
5906
5907 err = nl80211_parse_random_mac(info->attrs,
5908 request->mac_addr,
5909 request->mac_addr_mask);
5910 if (err)
5911 goto out_free;
5912 }
46856bbf 5913 }
ed473771 5914
e9f935e3
RM		 5915 request->no_cck =
5916 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5917
fd014284 5918 request->wdev = wdev;
79c97e97 5919 request->wiphy = &rdev->wiphy;
15d6030b 5920 request->scan_start = jiffies;
2a519311 5921
79c97e97 5922 rdev->scan_req = request;
e35e4d28 5923 err = rdev_scan(rdev, request);
2a519311 5924
463d0183 5925 if (!err) {
fd014284
JB		 5926 nl80211_send_scan_start(rdev, wdev);
5927 if (wdev->netdev)
5928 dev_hold(wdev->netdev);
4c476991 5929 } else {
2a519311 5930 out_free:
79c97e97 5931 rdev->scan_req = NULL;
2a519311
JB		 5932 kfree(request);
5933 }
3b85875a 5934
f9f47529 5935 unlock:
2a519311
JB		 5936 return err;
5937}
5938
256da02d 5939static struct cfg80211_sched_scan_request *
ad2b26ab 5940nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5941 struct nlattr **attrs)
807f8a8c
LC		 5942{
5943 struct cfg80211_sched_scan_request *request;
807f8a8c 5944 struct nlattr *attr;
a1f1c21c 5945 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5946 u32 interval;
807f8a8c
LC		 5947 enum ieee80211_band band;
5948 size_t ie_len;
a1f1c21c 5949 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5950 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5951
256da02d
LC		 5952 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5953 return ERR_PTR(-EINVAL);
807f8a8c 5954
256da02d
LC		 5955 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5956 return ERR_PTR(-EINVAL);
bbe6ad6d 5957
256da02d 5958 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5959 if (interval == 0)
256da02d 5960 return ERR_PTR(-EINVAL);
807f8a8c 5961
256da02d 5962 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5963 n_channels = validate_scan_freqs(
256da02d 5964 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5965 if (!n_channels)
256da02d 5966 return ERR_PTR(-EINVAL);
807f8a8c 5967 } else {
bdfbec2d 5968 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5969 }
5970
256da02d
LC		 5971 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5972 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5973 tmp)
5974 n_ssids++;
5975
93b6aa69 5976 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5977 return ERR_PTR(-EINVAL);
807f8a8c 5978
ea73cbce
JB		 5979 /*
5980 * First, count the number of 'real' matchsets. Due to an issue with
5981 * the old implementation, matchsets containing only the RSSI attribute
5982 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5983 * RSSI for all matchsets, rather than their own matchset for reporting
5984 * all APs with a strong RSSI. This is needed to be compatible with
5985 * older userspace that treated a matchset with only the RSSI as the
5986 * global RSSI for all other matchsets - if there are other matchsets.
5987 */
256da02d 5988 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5989 nla_for_each_nested(attr,
256da02d 5990 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5991 tmp) {
5992 struct nlattr *rssi;
5993
5994 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5995 nla_data(attr), nla_len(attr),
5996 nl80211_match_policy);
5997 if (err)
256da02d 5998 return ERR_PTR(err);
ea73cbce
JB		 5999 /* add other standalone attributes here */
6000 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6001 n_match_sets++;
6002 continue;
6003 }
6004 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6005 if (rssi)
6006 default_match_rssi = nla_get_s32(rssi);
6007 }
6008 }
6009
6010 /* However, if there's no other matchset, add the RSSI one */
6011 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6012 n_match_sets = 1;
a1f1c21c
LC		 6013
6014 if (n_match_sets > wiphy->max_match_sets)
256da02d 6015 return ERR_PTR(-EINVAL);
a1f1c21c 6016
256da02d
LC		 6017 if (attrs[NL80211_ATTR_IE])
6018 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6019 else
6020 ie_len = 0;
6021
5a865bad 6022 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6023 return ERR_PTR(-EINVAL);
c10841ca 6024
807f8a8c 6025 request = kzalloc(sizeof(*request)
a2cd43c5 6026 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6027 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6028 + sizeof(*request->channels) * n_channels
807f8a8c 6029 + ie_len, GFP_KERNEL);
256da02d
LC		 6030 if (!request)
6031 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6032
6033 if (n_ssids)
6034 request->ssids = (void *)&request->channels[n_channels];
6035 request->n_ssids = n_ssids;
6036 if (ie_len) {
13874e4b 6037 if (n_ssids)
807f8a8c
LC		 6038 request->ie = (void *)(request->ssids + n_ssids);
6039 else
6040 request->ie = (void *)(request->channels + n_channels);
6041 }
6042
a1f1c21c
LC		 6043 if (n_match_sets) {
6044 if (request->ie)
6045 request->match_sets = (void *)(request->ie + ie_len);
13874e4b 6046 else if (n_ssids)
a1f1c21c
LC		 6047 request->match_sets =
6048 (void *)(request->ssids + n_ssids);
6049 else
6050 request->match_sets =
6051 (void *)(request->channels + n_channels);
6052 }
6053 request->n_match_sets = n_match_sets;
6054
807f8a8c 6055 i = 0;
256da02d 6056 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6057 /* user specified, bail out if channel not found */
6058 nla_for_each_nested(attr,
256da02d 6059 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6060 tmp) {
6061 struct ieee80211_channel *chan;
6062
6063 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6064
6065 if (!chan) {
6066 err = -EINVAL;
6067 goto out_free;
6068 }
6069
6070 /* ignore disabled channels */
6071 if (chan->flags & IEEE80211_CHAN_DISABLED)
6072 continue;
6073
6074 request->channels[i] = chan;
6075 i++;
6076 }
6077 } else {
6078 /* all channels */
6079 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6080 int j;
6081 if (!wiphy->bands[band])
6082 continue;
6083 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6084 struct ieee80211_channel *chan;
6085
6086 chan = &wiphy->bands[band]->channels[j];
6087
6088 if (chan->flags & IEEE80211_CHAN_DISABLED)
6089 continue;
6090
6091 request->channels[i] = chan;
6092 i++;
6093 }
6094 }
6095 }
6096
6097 if (!i) {
6098 err = -EINVAL;
6099 goto out_free;
6100 }
6101
6102 request->n_channels = i;
6103
6104 i = 0;
13874e4b 6105 if (n_ssids) {
256da02d 6106 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6107 tmp) {
57a27e1d 6108 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6109 err = -EINVAL;
6110 goto out_free;
6111 }
57a27e1d 6112 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6113 memcpy(request->ssids[i].ssid, nla_data(attr),
6114 nla_len(attr));
807f8a8c
LC		 6115 i++;
6116 }
6117 }
6118
a1f1c21c 6119 i = 0;
256da02d 6120 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6121 nla_for_each_nested(attr,
256da02d 6122 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6123 tmp) {
88e920b4 6124 struct nlattr *ssid, *rssi;
a1f1c21c 6125
ae811e21
JB		 6126 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6127 nla_data(attr), nla_len(attr),
6128 nl80211_match_policy);
6129 if (err)
6130 goto out_free;
4a4ab0d7 6131 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6132 if (ssid) {
ea73cbce
JB		 6133 if (WARN_ON(i >= n_match_sets)) {
6134 /* this indicates a programming error,
6135 * the loop above should have verified
6136 * things properly
6137 */
6138 err = -EINVAL;
6139 goto out_free;
6140 }
6141
a1f1c21c
LC		 6142 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6143 err = -EINVAL;
6144 goto out_free;
6145 }
6146 memcpy(request->match_sets[i].ssid.ssid,
6147 nla_data(ssid), nla_len(ssid));
6148 request->match_sets[i].ssid.ssid_len =
6149 nla_len(ssid);
ea73cbce
JB		 6150 /* special attribute - old implemenation w/a */
6151 request->match_sets[i].rssi_thold =
6152 default_match_rssi;
6153 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6154 if (rssi)
6155 request->match_sets[i].rssi_thold =
6156 nla_get_s32(rssi);
a1f1c21c
LC		 6157 }
6158 i++;
6159 }
ea73cbce
JB		 6160
6161 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6162 if (i == 0 && n_match_sets)
ea73cbce
JB		 6163 request->match_sets[0].rssi_thold = default_match_rssi;
6164
6165 request->min_rssi_thold = INT_MAX;
6166 for (i = 0; i < n_match_sets; i++)
6167 request->min_rssi_thold =
6168 min(request->match_sets[i].rssi_thold,
6169 request->min_rssi_thold);
6170 } else {
6171 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6172 }
6173
9900e484
JB		 6174 if (ie_len) {
6175 request->ie_len = ie_len;
807f8a8c 6176 memcpy((void *)request->ie,
256da02d 6177 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6178 request->ie_len);
6179 }
6180
256da02d 6181 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6182 request->flags = nla_get_u32(
256da02d 6183 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6184 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6185 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6186 err = -EOPNOTSUPP;
6187 goto out_free;
6188 }
ad2b26ab
JB		 6189
6190 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6191 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6192
6193 if (!wdev) /* must be net-detect */
6194 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6195
6196 if (!(wiphy->features & flg)) {
6197 err = -EOPNOTSUPP;
6198 goto out_free;
6199 }
6200
6201 if (wdev && wdev->current_bss) {
6202 err = -EOPNOTSUPP;
6203 goto out_free;
6204 }
6205
6206 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6207 request->mac_addr_mask);
6208 if (err)
6209 goto out_free;
6210 }
46856bbf 6211 }
ed473771 6212
9c748934
LC		 6213 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6214 request->delay =
6215 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6216
bbe6ad6d 6217 request->interval = interval;
15d6030b 6218 request->scan_start = jiffies;
807f8a8c 6219
256da02d 6220 return request;
807f8a8c
LC		 6221
6222out_free:
6223 kfree(request);
256da02d
LC		 6224 return ERR_PTR(err);
6225}
6226
6227static int nl80211_start_sched_scan(struct sk_buff *skb,
6228 struct genl_info *info)
6229{
6230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6231 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6232 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6233 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6234 int err;
6235
6236 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6237 !rdev->ops->sched_scan_start)
6238 return -EOPNOTSUPP;
6239
6240 if (rdev->sched_scan_req)
6241 return -EINPROGRESS;
6242
31a60ed1
JR		 6243 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6244 info->attrs);
6245
6246 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6247 if (err)
6248 goto out_err;
6249
31a60ed1 6250 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6251 if (err)
6252 goto out_free;
6253
31a60ed1
JR		 6254 sched_scan_req->dev = dev;
6255 sched_scan_req->wiphy = &rdev->wiphy;
6256
93a1e86c
JR		 6257 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6258 sched_scan_req->owner_nlportid = info->snd_portid;
6259
31a60ed1 6260 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6261
6262 nl80211_send_sched_scan(rdev, dev,
6263 NL80211_CMD_START_SCHED_SCAN);
6264 return 0;
6265
6266out_free:
31a60ed1 6267 kfree(sched_scan_req);
256da02d 6268out_err:
807f8a8c
LC		 6269 return err;
6270}
6271
6272static int nl80211_stop_sched_scan(struct sk_buff *skb,
6273 struct genl_info *info)
6274{
6275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6276
6277 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6278 !rdev->ops->sched_scan_stop)
6279 return -EOPNOTSUPP;
6280
5fe231e8 6281 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6282}
6283
04f39047
SW		 6284static int nl80211_start_radar_detection(struct sk_buff *skb,
6285 struct genl_info *info)
6286{
6287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6288 struct net_device *dev = info->user_ptr[1];
6289 struct wireless_dev *wdev = dev->ieee80211_ptr;
6290 struct cfg80211_chan_def chandef;
55f7435c 6291 enum nl80211_dfs_regions dfs_region;
31559f35 6292 unsigned int cac_time_ms;
04f39047
SW		 6293 int err;
6294
55f7435c
LR		 6295 dfs_region = reg_get_dfs_region(wdev->wiphy);
6296 if (dfs_region == NL80211_DFS_UNSET)
6297 return -EINVAL;
6298
04f39047
SW		 6299 err = nl80211_parse_chandef(rdev, info, &chandef);
6300 if (err)
6301 return err;
6302
ff311bc1
SW		 6303 if (netif_carrier_ok(dev))
6304 return -EBUSY;
6305
04f39047
SW		 6306 if (wdev->cac_started)
6307 return -EBUSY;
6308
2beb6dab 6309 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6310 wdev->iftype);
04f39047
SW		 6311 if (err < 0)
6312 return err;
6313
6314 if (err == 0)
6315 return -EINVAL;
6316
fe7c3a1f 6317 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6318 return -EINVAL;
6319
6320 if (!rdev->ops->start_radar_detection)
6321 return -EOPNOTSUPP;
6322
31559f35
JD		 6323 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6324 if (WARN_ON(!cac_time_ms))
6325 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6326
6327 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6328 cac_time_ms);
04f39047 6329 if (!err) {
9e0e2961 6330 wdev->chandef = chandef;
04f39047
SW		 6331 wdev->cac_started = true;
6332 wdev->cac_start_time = jiffies;
31559f35 6333 wdev->cac_time_ms = cac_time_ms;
04f39047 6334 }
04f39047
SW		 6335 return err;
6336}
6337
16ef1fe2
SW		 6338static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6339{
6340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6341 struct net_device *dev = info->user_ptr[1];
6342 struct wireless_dev *wdev = dev->ieee80211_ptr;
6343 struct cfg80211_csa_settings params;
6344 /* csa_attrs is defined static to avoid waste of stack size - this
6345 * function is called under RTNL lock, so this should not be a problem.
6346 */
6347 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6348 int err;
ee4bc9e7 6349 bool need_new_beacon = false;
9a774c78 6350 int len, i;
252e07ca 6351 u32 cs_count;
16ef1fe2
SW		 6352
6353 if (!rdev->ops->channel_switch ||
6354 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6355 return -EOPNOTSUPP;
6356
ee4bc9e7
SW		 6357 switch (dev->ieee80211_ptr->iftype) {
6358 case NL80211_IFTYPE_AP:
6359 case NL80211_IFTYPE_P2P_GO:
6360 need_new_beacon = true;
6361
6362 /* useless if AP is not running */
6363 if (!wdev->beacon_interval)
1ff79dfa 6364 return -ENOTCONN;
ee4bc9e7
SW		 6365 break;
6366 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6367 if (!wdev->ssid_len)
6368 return -ENOTCONN;
6369 break;
c6da674a 6370 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6371 if (!wdev->mesh_id_len)
6372 return -ENOTCONN;
ee4bc9e7
SW		 6373 break;
6374 default:
16ef1fe2 6375 return -EOPNOTSUPP;
ee4bc9e7 6376 }
16ef1fe2
SW		 6377
6378 memset(&params, 0, sizeof(params));
6379
6380 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6381 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6382 return -EINVAL;
6383
6384 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6385 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6386 return -EINVAL;
6387
252e07ca
LC		 6388 /* Even though the attribute is u32, the specification says
6389 * u8, so let's make sure we don't overflow.
6390 */
6391 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6392 if (cs_count > 255)
6393 return -EINVAL;
6394
6395 params.count = cs_count;
16ef1fe2 6396
ee4bc9e7
SW		 6397 if (!need_new_beacon)
6398 goto skip_beacons;
6399
16ef1fe2
SW		 6400 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6401 if (err)
6402 return err;
6403
6404 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6405 info->attrs[NL80211_ATTR_CSA_IES],
6406 nl80211_policy);
6407 if (err)
6408 return err;
6409
6410 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6411 if (err)
6412 return err;
6413
6414 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6415 return -EINVAL;
6416
9a774c78
AO		 6417 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6418 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6419 return -EINVAL;
6420
9a774c78
AO		 6421 params.n_counter_offsets_beacon = len / sizeof(u16);
6422 if (rdev->wiphy.max_num_csa_counters &&
6423 (params.n_counter_offsets_beacon >
6424 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6425 return -EINVAL;
6426
9a774c78
AO		 6427 params.counter_offsets_beacon =
6428 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6429
6430 /* sanity checks - counters should fit and be the same */
6431 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6432 u16 offset = params.counter_offsets_beacon[i];
6433
6434 if (offset >= params.beacon_csa.tail_len)
6435 return -EINVAL;
6436
6437 if (params.beacon_csa.tail[offset] != params.count)
6438 return -EINVAL;
6439 }
6440
16ef1fe2 6441 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6442 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6443 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6444 return -EINVAL;
6445
9a774c78
AO		 6446 params.n_counter_offsets_presp = len / sizeof(u16);
6447 if (rdev->wiphy.max_num_csa_counters &&
6448 (params.n_counter_offsets_beacon >
6449 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6450 return -EINVAL;
9a774c78
AO		 6451
6452 params.counter_offsets_presp =
6453 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6454
6455 /* sanity checks - counters should fit and be the same */
6456 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6457 u16 offset = params.counter_offsets_presp[i];
6458
6459 if (offset >= params.beacon_csa.probe_resp_len)
6460 return -EINVAL;
6461
6462 if (params.beacon_csa.probe_resp[offset] !=
6463 params.count)
6464 return -EINVAL;
6465 }
16ef1fe2
SW		 6466 }
6467
ee4bc9e7 6468skip_beacons:
16ef1fe2
SW		 6469 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6470 if (err)
6471 return err;
6472
174e0cd2
IP		 6473 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6474 wdev->iftype))
16ef1fe2
SW		 6475 return -EINVAL;
6476
2beb6dab
LC		 6477 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6478 &params.chandef,
6479 wdev->iftype);
6480 if (err < 0)
6481 return err;
6482
dcc6c2f5 6483 if (err > 0)
2beb6dab 6484 params.radar_required = true;
16ef1fe2 6485
16ef1fe2
SW		 6486 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6487 params.block_tx = true;
6488
c56589ed
SW		 6489 wdev_lock(wdev);
6490 err = rdev_channel_switch(rdev, dev, &params);
6491 wdev_unlock(wdev);
6492
6493 return err;
16ef1fe2
SW		 6494}
6495
9720bb3a
JB		 6496static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6497 u32 seq, int flags,
2a519311 6498 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6499 struct wireless_dev *wdev,
6500 struct cfg80211_internal_bss *intbss)
2a519311 6501{
48ab905d 6502 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6503 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6504 void *hdr;
6505 struct nlattr *bss;
48ab905d
JB		 6506
6507 ASSERT_WDEV_LOCK(wdev);
2a519311 6508
15e47304 6509 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6510 NL80211_CMD_NEW_SCAN_RESULTS);
6511 if (!hdr)
6512 return -1;
6513
9720bb3a
JB		 6514 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6515
97990a06
JB		 6516 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6517 goto nla_put_failure;
6518 if (wdev->netdev &&
9360ffd1
DM		 6519 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6520 goto nla_put_failure;
97990a06
JB		 6521 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6522 goto nla_put_failure;
2a519311
JB		 6523
6524 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6525 if (!bss)
6526 goto nla_put_failure;
9360ffd1 6527 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6528 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6529 goto nla_put_failure;
9caf0364
JB		 6530
6531 rcu_read_lock();
0e227084
JB		 6532 /* indicate whether we have probe response data or not */
6533 if (rcu_access_pointer(res->proberesp_ies) &&
6534 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6535 goto fail_unlock_rcu;
6536
6537 /* this pointer prefers to be pointed to probe response data
6538 * but is always valid
6539 */
9caf0364 6540 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6541 if (ies) {
6542 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6543 goto fail_unlock_rcu;
8cef2c9d
JB		 6544 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6545 ies->len, ies->data))
6546 goto fail_unlock_rcu;
9caf0364 6547 }
0e227084
JB		 6548
6549 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6550 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6551 if (ies && ies->from_beacon) {
6552 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6553 goto fail_unlock_rcu;
6554 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6555 ies->len, ies->data))
6556 goto fail_unlock_rcu;
9caf0364
JB		 6557 }
6558 rcu_read_unlock();
6559
9360ffd1
DM		 6560 if (res->beacon_interval &&
6561 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6562 goto nla_put_failure;
6563 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6564 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6565 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6566 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6567 jiffies_to_msecs(jiffies - intbss->ts)))
6568 goto nla_put_failure;
2a519311 6569
77965c97 6570 switch (rdev->wiphy.signal_type) {
2a519311 6571 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6572 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6573 goto nla_put_failure;
2a519311
JB		 6574 break;
6575 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6576 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6577 goto nla_put_failure;
2a519311
JB		 6578 break;
6579 default:
6580 break;
6581 }
6582
48ab905d 6583 switch (wdev->iftype) {
074ac8df 6584 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6585 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6586 if (intbss == wdev->current_bss &&
6587 nla_put_u32(msg, NL80211_BSS_STATUS,
6588 NL80211_BSS_STATUS_ASSOCIATED))
6589 goto nla_put_failure;
48ab905d
JB		 6590 break;
6591 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6592 if (intbss == wdev->current_bss &&
6593 nla_put_u32(msg, NL80211_BSS_STATUS,
6594 NL80211_BSS_STATUS_IBSS_JOINED))
6595 goto nla_put_failure;
48ab905d
JB		 6596 break;
6597 default:
6598 break;
6599 }
6600
2a519311
JB		 6601 nla_nest_end(msg, bss);
6602
053c095a
JB		 6603 genlmsg_end(msg, hdr);
6604 return 0;
2a519311 6605
8cef2c9d
JB		 6606 fail_unlock_rcu:
6607 rcu_read_unlock();
2a519311
JB		 6608 nla_put_failure:
6609 genlmsg_cancel(msg, hdr);
6610 return -EMSGSIZE;
6611}
6612
97990a06 6613static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6614{
48ab905d 6615 struct cfg80211_registered_device *rdev;
2a519311 6616 struct cfg80211_internal_bss *scan;
48ab905d 6617 struct wireless_dev *wdev;
97990a06 6618 int start = cb->args[2], idx = 0;
2a519311
JB		 6619 int err;
6620
97990a06 6621 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6622 if (err)
6623 return err;
2a519311 6624
48ab905d
JB		 6625 wdev_lock(wdev);
6626 spin_lock_bh(&rdev->bss_lock);
6627 cfg80211_bss_expire(rdev);
6628
9720bb3a
JB		 6629 cb->seq = rdev->bss_generation;
6630
48ab905d 6631 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6632 if (++idx <= start)
6633 continue;
9720bb3a 6634 if (nl80211_send_bss(skb, cb,
2a519311 6635 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6636 rdev, wdev, scan) < 0) {
2a519311 6637 idx--;
67748893 6638 break;
2a519311
JB		 6639 }
6640 }
6641
48ab905d
JB		 6642 spin_unlock_bh(&rdev->bss_lock);
6643 wdev_unlock(wdev);
2a519311 6644
97990a06
JB		 6645 cb->args[2] = idx;
6646 nl80211_finish_wdev_dump(rdev);
2a519311 6647
67748893 6648 return skb->len;
2a519311
JB		 6649}
6650
15e47304 6651static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6652 int flags, struct net_device *dev,
6653 bool allow_radio_stats,
6654 struct survey_info *survey)
61fa713c
HS		 6655{
6656 void *hdr;
6657 struct nlattr *infoattr;
6658
11f78ac3
JB		 6659 /* skip radio stats if userspace didn't request them */
6660 if (!survey->channel && !allow_radio_stats)
6661 return 0;
6662
15e47304 6663 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6664 NL80211_CMD_NEW_SURVEY_RESULTS);
6665 if (!hdr)
6666 return -ENOMEM;
6667
9360ffd1
DM		 6668 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6669 goto nla_put_failure;
61fa713c
HS		 6670
6671 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6672 if (!infoattr)
6673 goto nla_put_failure;
6674
11f78ac3
JB		 6675 if (survey->channel &&
6676 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6677 survey->channel->center_freq))
6678 goto nla_put_failure;
6679
6680 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6681 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6682 goto nla_put_failure;
6683 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6684 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6685 goto nla_put_failure;
4ed20beb
JB		 6686 if ((survey->filled & SURVEY_INFO_TIME) &&
6687 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6688 survey->time))
9360ffd1 6689 goto nla_put_failure;
4ed20beb
JB		 6690 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6691 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6692 survey->time_busy))
9360ffd1 6693 goto nla_put_failure;
4ed20beb
JB		 6694 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6695 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6696 survey->time_ext_busy))
9360ffd1 6697 goto nla_put_failure;
4ed20beb
JB		 6698 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6699 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6700 survey->time_rx))
9360ffd1 6701 goto nla_put_failure;
4ed20beb
JB		 6702 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6703 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6704 survey->time_tx))
9360ffd1 6705 goto nla_put_failure;
052536ab
JB		 6706 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6707 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6708 survey->time_scan))
6709 goto nla_put_failure;
61fa713c
HS		 6710
6711 nla_nest_end(msg, infoattr);
6712
053c095a
JB		 6713 genlmsg_end(msg, hdr);
6714 return 0;
61fa713c
HS		 6715
6716 nla_put_failure:
6717 genlmsg_cancel(msg, hdr);
6718 return -EMSGSIZE;
6719}
6720
11f78ac3 6721static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6722{
6723 struct survey_info survey;
1b8ec87a 6724 struct cfg80211_registered_device *rdev;
97990a06
JB		 6725 struct wireless_dev *wdev;
6726 int survey_idx = cb->args[2];
61fa713c 6727 int res;
11f78ac3 6728 bool radio_stats;
61fa713c 6729
1b8ec87a 6730 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6731 if (res)
6732 return res;
61fa713c 6733
11f78ac3
JB		 6734 /* prepare_wdev_dump parsed the attributes */
6735 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6736
97990a06
JB		 6737 if (!wdev->netdev) {
6738 res = -EINVAL;
6739 goto out_err;
6740 }
6741
1b8ec87a 6742 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6743 res = -EOPNOTSUPP;
6744 goto out_err;
6745 }
6746
6747 while (1) {
1b8ec87a 6748 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6749 if (res == -ENOENT)
6750 break;
6751 if (res)
6752 goto out_err;
6753
11f78ac3
JB		 6754 /* don't send disabled channels, but do send non-channel data */
6755 if (survey.channel &&
6756 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6757 survey_idx++;
6758 continue;
6759 }
6760
61fa713c 6761 if (nl80211_send_survey(skb,
15e47304 6762 NETLINK_CB(cb->skb).portid,
61fa713c 6763 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6764 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6765 goto out;
6766 survey_idx++;
6767 }
6768
6769 out:
97990a06 6770 cb->args[2] = survey_idx;
61fa713c
HS		 6771 res = skb->len;
6772 out_err:
1b8ec87a 6773 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6774 return res;
6775}
6776
b23aa676
SO		 6777static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6778{
6779 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6780 NL80211_WPA_VERSION_2));
6781}
6782
636a5d36
JM		 6783static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6784{
4c476991
JB		 6785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6786 struct net_device *dev = info->user_ptr[1];
19957bb3 6787 struct ieee80211_channel *chan;
e39e5b5e
JM		 6788 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6789 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6790 enum nl80211_auth_type auth_type;
fffd0934 6791 struct key_parse key;
d5cdfacb 6792 bool local_state_change;
636a5d36 6793
f4a11bb0
JB		 6794 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6795 return -EINVAL;
6796
6797 if (!info->attrs[NL80211_ATTR_MAC])
6798 return -EINVAL;
6799
1778092e
JM		 6800 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6801 return -EINVAL;
6802
19957bb3
JB		 6803 if (!info->attrs[NL80211_ATTR_SSID])
6804 return -EINVAL;
6805
6806 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6807 return -EINVAL;
6808
fffd0934
JB		 6809 err = nl80211_parse_key(info, &key);
6810 if (err)
6811 return err;
6812
6813 if (key.idx >= 0) {
e31b8213
JB		 6814 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6815 return -EINVAL;
fffd0934
JB		 6816 if (!key.p.key || !key.p.key_len)
6817 return -EINVAL;
6818 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6819 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6820 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6821 key.p.key_len != WLAN_KEY_LEN_WEP104))
6822 return -EINVAL;
6823 if (key.idx > 4)
6824 return -EINVAL;
6825 } else {
6826 key.p.key_len = 0;
6827 key.p.key = NULL;
6828 }
6829
afea0b7a
JB		 6830 if (key.idx >= 0) {
6831 int i;
6832 bool ok = false;
6833 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6834 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6835 ok = true;
6836 break;
6837 }
6838 }
4c476991
JB		 6839 if (!ok)
6840 return -EINVAL;
afea0b7a
JB		 6841 }
6842
4c476991
JB		 6843 if (!rdev->ops->auth)
6844 return -EOPNOTSUPP;
636a5d36 6845
074ac8df 6846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6848 return -EOPNOTSUPP;
eec60b03 6849
19957bb3 6850 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6851 chan = nl80211_get_valid_chan(&rdev->wiphy,
6852 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6853 if (!chan)
4c476991 6854 return -EINVAL;
636a5d36 6855
19957bb3
JB		 6856 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6857 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6858
6859 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6860 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6861 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6862 }
6863
19957bb3 6864 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6865 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6866 return -EINVAL;
636a5d36 6867
e39e5b5e
JM		 6868 if (auth_type == NL80211_AUTHTYPE_SAE &&
6869 !info->attrs[NL80211_ATTR_SAE_DATA])
6870 return -EINVAL;
6871
6872 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6873 if (auth_type != NL80211_AUTHTYPE_SAE)
6874 return -EINVAL;
6875 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6876 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6877 /* need to include at least Auth Transaction and Status Code */
6878 if (sae_data_len < 4)
6879 return -EINVAL;
6880 }
6881
d5cdfacb
JM		 6882 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6883
95de817b
JB		 6884 /*
6885 * Since we no longer track auth state, ignore
6886 * requests to only change local state.
6887 */
6888 if (local_state_change)
6889 return 0;
6890
91bf9b26
JB		 6891 wdev_lock(dev->ieee80211_ptr);
6892 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6893 ssid, ssid_len, ie, ie_len,
6894 key.p.key, key.p.key_len, key.idx,
6895 sae_data, sae_data_len);
6896 wdev_unlock(dev->ieee80211_ptr);
6897 return err;
636a5d36
JM		 6898}
6899
c0692b8f
JB		 6900static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6901 struct genl_info *info,
3dc27d25
JB		 6902 struct cfg80211_crypto_settings *settings,
6903 int cipher_limit)
b23aa676 6904{
c0b2bbd8
JB		 6905 memset(settings, 0, sizeof(*settings));
6906
b23aa676
SO		 6907 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6908
c0692b8f
JB		 6909 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6910 u16 proto;
6911 proto = nla_get_u16(
6912 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6913 settings->control_port_ethertype = cpu_to_be16(proto);
6914 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6915 proto != ETH_P_PAE)
6916 return -EINVAL;
6917 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6918 settings->control_port_no_encrypt = true;
6919 } else
6920 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6921
b23aa676
SO		 6922 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6923 void *data;
6924 int len, i;
6925
6926 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6927 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6928 settings->n_ciphers_pairwise = len / sizeof(u32);
6929
6930 if (len % sizeof(u32))
6931 return -EINVAL;
6932
3dc27d25 6933 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6934 return -EINVAL;
6935
6936 memcpy(settings->ciphers_pairwise, data, len);
6937
6938 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6939 if (!cfg80211_supported_cipher_suite(
6940 &rdev->wiphy,
b23aa676
SO		 6941 settings->ciphers_pairwise[i]))
6942 return -EINVAL;
6943 }
6944
6945 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6946 settings->cipher_group =
6947 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6948 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6949 settings->cipher_group))
b23aa676
SO		 6950 return -EINVAL;
6951 }
6952
6953 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6954 settings->wpa_versions =
6955 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6956 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6957 return -EINVAL;
6958 }
6959
6960 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6961 void *data;
6d30240e 6962 int len;
b23aa676
SO		 6963
6964 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6965 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6966 settings->n_akm_suites = len / sizeof(u32);
6967
6968 if (len % sizeof(u32))
6969 return -EINVAL;
6970
1b9ca027
JM		 6971 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6972 return -EINVAL;
6973
b23aa676 6974 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6975 }
6976
6977 return 0;
6978}
6979
636a5d36
JM		 6980static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6981{
4c476991
JB		 6982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6983 struct net_device *dev = info->user_ptr[1];
f444de05 6984 struct ieee80211_channel *chan;
f62fab73
JB		 6985 struct cfg80211_assoc_request req = {};
6986 const u8 *bssid, *ssid;
6987 int err, ssid_len = 0;
636a5d36 6988
f4a11bb0
JB		 6989 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6990 return -EINVAL;
6991
6992 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6993 !info->attrs[NL80211_ATTR_SSID] ||
6994 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6995 return -EINVAL;
6996
4c476991
JB		 6997 if (!rdev->ops->assoc)
6998 return -EOPNOTSUPP;
636a5d36 6999
074ac8df 7000 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7001 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7002 return -EOPNOTSUPP;
eec60b03 7003
19957bb3 7004 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7005
664834de
JM		 7006 chan = nl80211_get_valid_chan(&rdev->wiphy,
7007 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7008 if (!chan)
4c476991 7009 return -EINVAL;
636a5d36 7010
19957bb3
JB		 7011 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7012 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7013
7014 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7015 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7016 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7017 }
7018
dc6382ce 7019 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7020 enum nl80211_mfp mfp =
dc6382ce 7021 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7022 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7023 req.use_mfp = true;
4c476991
JB		 7024 else if (mfp != NL80211_MFP_NO)
7025 return -EINVAL;
dc6382ce
JM		 7026 }
7027
3e5d7649 7028 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7029 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7030
7e7c8926 7031 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7032 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7033
7034 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7035 memcpy(&req.ht_capa_mask,
7036 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7037 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7038
7039 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7040 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7041 return -EINVAL;
f62fab73
JB		 7042 memcpy(&req.ht_capa,
7043 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7044 sizeof(req.ht_capa));
7e7c8926
BG		 7045 }
7046
ee2aca34 7047 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7048 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7049
7050 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7051 memcpy(&req.vht_capa_mask,
7052 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7053 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7054
7055 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7056 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7057 return -EINVAL;
f62fab73
JB		 7058 memcpy(&req.vht_capa,
7059 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7060 sizeof(req.vht_capa));
ee2aca34
JB		 7061 }
7062
bab5ab7d
AK		 7063 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7064 if (!(rdev->wiphy.features &
7065 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7066 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7067 return -EINVAL;
7068 req.flags |= ASSOC_REQ_USE_RRM;
7069 }
7070
f62fab73 7071 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7072 if (!err) {
7073 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7074 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7075 ssid, ssid_len, &req);
91bf9b26
JB		 7076 wdev_unlock(dev->ieee80211_ptr);
7077 }
636a5d36 7078
636a5d36
JM		 7079 return err;
7080}
7081
7082static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7083{
4c476991
JB		 7084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7085 struct net_device *dev = info->user_ptr[1];
19957bb3 7086 const u8 *ie = NULL, *bssid;
91bf9b26 7087 int ie_len = 0, err;
19957bb3 7088 u16 reason_code;
d5cdfacb 7089 bool local_state_change;
636a5d36 7090
f4a11bb0
JB		 7091 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7092 return -EINVAL;
7093
7094 if (!info->attrs[NL80211_ATTR_MAC])
7095 return -EINVAL;
7096
7097 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7098 return -EINVAL;
7099
4c476991
JB		 7100 if (!rdev->ops->deauth)
7101 return -EOPNOTSUPP;
636a5d36 7102
074ac8df 7103 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7104 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7105 return -EOPNOTSUPP;
eec60b03 7106
19957bb3 7107 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7108
19957bb3
JB		 7109 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7110 if (reason_code == 0) {
f4a11bb0 7111 /* Reason Code 0 is reserved */
4c476991 7112 return -EINVAL;
255e737e 7113 }
636a5d36
JM		 7114
7115 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7116 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7117 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7118 }
7119
d5cdfacb
JM		 7120 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7121
91bf9b26
JB		 7122 wdev_lock(dev->ieee80211_ptr);
7123 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7124 local_state_change);
7125 wdev_unlock(dev->ieee80211_ptr);
7126 return err;
636a5d36
JM		 7127}
7128
7129static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7130{
4c476991
JB		 7131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7132 struct net_device *dev = info->user_ptr[1];
19957bb3 7133 const u8 *ie = NULL, *bssid;
91bf9b26 7134 int ie_len = 0, err;
19957bb3 7135 u16 reason_code;
d5cdfacb 7136 bool local_state_change;
636a5d36 7137
f4a11bb0
JB		 7138 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7139 return -EINVAL;
7140
7141 if (!info->attrs[NL80211_ATTR_MAC])
7142 return -EINVAL;
7143
7144 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7145 return -EINVAL;
7146
4c476991
JB		 7147 if (!rdev->ops->disassoc)
7148 return -EOPNOTSUPP;
636a5d36 7149
074ac8df 7150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7152 return -EOPNOTSUPP;
eec60b03 7153
19957bb3 7154 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7155
19957bb3
JB		 7156 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7157 if (reason_code == 0) {
f4a11bb0 7158 /* Reason Code 0 is reserved */
4c476991 7159 return -EINVAL;
255e737e 7160 }
636a5d36
JM		 7161
7162 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7163 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7164 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7165 }
7166
d5cdfacb
JM		 7167 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7168
91bf9b26
JB		 7169 wdev_lock(dev->ieee80211_ptr);
7170 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7171 local_state_change);
7172 wdev_unlock(dev->ieee80211_ptr);
7173 return err;
636a5d36
JM		 7174}
7175
dd5b4cc7
FF		 7176static bool
7177nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7178 int mcast_rate[IEEE80211_NUM_BANDS],
7179 int rateval)
7180{
7181 struct wiphy *wiphy = &rdev->wiphy;
7182 bool found = false;
7183 int band, i;
7184
7185 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7186 struct ieee80211_supported_band *sband;
7187
7188 sband = wiphy->bands[band];
7189 if (!sband)
7190 continue;
7191
7192 for (i = 0; i < sband->n_bitrates; i++) {
7193 if (sband->bitrates[i].bitrate == rateval) {
7194 mcast_rate[band] = i + 1;
7195 found = true;
7196 break;
7197 }
7198 }
7199 }
7200
7201 return found;
7202}
7203
04a773ad
JB		 7204static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7205{
4c476991
JB		 7206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7207 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7208 struct cfg80211_ibss_params ibss;
7209 struct wiphy *wiphy;
fffd0934 7210 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7211 int err;
7212
8e30bc55
JB		 7213 memset(&ibss, 0, sizeof(ibss));
7214
04a773ad
JB		 7215 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7216 return -EINVAL;
7217
683b6d3b 7218 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7219 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7220 return -EINVAL;
7221
8e30bc55
JB		 7222 ibss.beacon_interval = 100;
7223
7224 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7225 ibss.beacon_interval =
7226 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7227 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7228 return -EINVAL;
7229 }
7230
4c476991
JB		 7231 if (!rdev->ops->join_ibss)
7232 return -EOPNOTSUPP;
04a773ad 7233
4c476991
JB		 7234 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7235 return -EOPNOTSUPP;
04a773ad 7236
79c97e97 7237 wiphy = &rdev->wiphy;
04a773ad 7238
39193498 7239 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7240 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7241
7242 if (!is_valid_ether_addr(ibss.bssid))
7243 return -EINVAL;
7244 }
04a773ad
JB		 7245 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7246 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7247
7248 if (info->attrs[NL80211_ATTR_IE]) {
7249 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7250 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7251 }
7252
683b6d3b
JB		 7253 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7254 if (err)
7255 return err;
04a773ad 7256
174e0cd2
IP		 7257 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7258 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7259 return -EINVAL;
7260
2f301ab2 7261 switch (ibss.chandef.width) {
bf372645
SW		 7262 case NL80211_CHAN_WIDTH_5:
7263 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7264 case NL80211_CHAN_WIDTH_20_NOHT:
7265 break;
7266 case NL80211_CHAN_WIDTH_20:
7267 case NL80211_CHAN_WIDTH_40:
ffc11991
JD		 7268 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7269 return -EINVAL;
7270 break;
7271 case NL80211_CHAN_WIDTH_80:
7272 case NL80211_CHAN_WIDTH_80P80:
7273 case NL80211_CHAN_WIDTH_160:
7274 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7275 return -EINVAL;
7276 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7277 NL80211_EXT_FEATURE_VHT_IBSS))
7278 return -EINVAL;
7279 break;
2f301ab2 7280 default:
c04d6150 7281 return -EINVAL;
2f301ab2 7282 }
db9c64cf 7283
04a773ad 7284 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7285 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7286
fbd2c8dc
TP		 7287 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7288 u8 *rates =
7289 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7290 int n_rates =
7291 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7292 struct ieee80211_supported_band *sband =
683b6d3b 7293 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7294
34850ab2
JB		 7295 err = ieee80211_get_ratemask(sband, rates, n_rates,
7296 &ibss.basic_rates);
7297 if (err)
7298 return err;
fbd2c8dc 7299 }
dd5b4cc7 7300
803768f5
SW		 7301 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7302 memcpy(&ibss.ht_capa_mask,
7303 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7304 sizeof(ibss.ht_capa_mask));
7305
7306 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7307 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7308 return -EINVAL;
7309 memcpy(&ibss.ht_capa,
7310 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7311 sizeof(ibss.ht_capa));
7312 }
7313
dd5b4cc7
FF		 7314 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7315 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7316 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7317 return -EINVAL;
fbd2c8dc 7318
4c476991 7319 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7320 bool no_ht = false;
7321
4c476991 7322 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7323 info->attrs[NL80211_ATTR_KEYS],
7324 &no_ht);
4c476991
JB		 7325 if (IS_ERR(connkeys))
7326 return PTR_ERR(connkeys);
de7044ee 7327
3d9d1d66
JB		 7328 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7329 no_ht) {
de7044ee
SM		 7330 kfree(connkeys);
7331 return -EINVAL;
7332 }
4c476991 7333 }
04a773ad 7334
267335d6
AQ		 7335 ibss.control_port =
7336 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7337
5336fa88
SW		 7338 ibss.userspace_handles_dfs =
7339 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7340
4c476991 7341 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7342 if (err)
b47f610b 7343 kzfree(connkeys);
04a773ad
JB		 7344 return err;
7345}
7346
7347static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7348{
4c476991
JB		 7349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7350 struct net_device *dev = info->user_ptr[1];
04a773ad 7351
4c476991
JB		 7352 if (!rdev->ops->leave_ibss)
7353 return -EOPNOTSUPP;
04a773ad 7354
4c476991
JB		 7355 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7356 return -EOPNOTSUPP;
04a773ad 7357
4c476991 7358 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7359}
7360
f4e583c8
AQ		 7361static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7362{
7363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7364 struct net_device *dev = info->user_ptr[1];
7365 int mcast_rate[IEEE80211_NUM_BANDS];
7366 u32 nla_rate;
7367 int err;
7368
7369 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7370 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7371 return -EOPNOTSUPP;
7372
7373 if (!rdev->ops->set_mcast_rate)
7374 return -EOPNOTSUPP;
7375
7376 memset(mcast_rate, 0, sizeof(mcast_rate));
7377
7378 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7379 return -EINVAL;
7380
7381 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7382 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7383 return -EINVAL;
7384
7385 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7386
7387 return err;
7388}
7389
ad7e718c
JB		 7390static struct sk_buff *
7391__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6c09e791
AK		 7392 struct wireless_dev *wdev, int approxlen,
7393 u32 portid, u32 seq, enum nl80211_commands cmd,
567ffc35
JB		 7394 enum nl80211_attrs attr,
7395 const struct nl80211_vendor_cmd_info *info,
7396 gfp_t gfp)
ad7e718c
JB		 7397{
7398 struct sk_buff *skb;
7399 void *hdr;
7400 struct nlattr *data;
7401
7402 skb = nlmsg_new(approxlen + 100, gfp);
7403 if (!skb)
7404 return NULL;
7405
7406 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7407 if (!hdr) {
7408 kfree_skb(skb);
7409 return NULL;
7410 }
7411
7412 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7413 goto nla_put_failure;
567ffc35
JB		 7414
7415 if (info) {
7416 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7417 info->vendor_id))
7418 goto nla_put_failure;
7419 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7420 info->subcmd))
7421 goto nla_put_failure;
7422 }
7423
6c09e791
AK		 7424 if (wdev) {
7425 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7426 wdev_id(wdev)))
7427 goto nla_put_failure;
7428 if (wdev->netdev &&
7429 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7430 wdev->netdev->ifindex))
7431 goto nla_put_failure;
7432 }
7433
ad7e718c
JB		 7434 data = nla_nest_start(skb, attr);
7435
7436 ((void **)skb->cb)[0] = rdev;
7437 ((void **)skb->cb)[1] = hdr;
7438 ((void **)skb->cb)[2] = data;
7439
7440 return skb;
7441
7442 nla_put_failure:
7443 kfree_skb(skb);
7444 return NULL;
7445}
f4e583c8 7446
e03ad6ea 7447struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6c09e791 7448 struct wireless_dev *wdev,
e03ad6ea
JB		 7449 enum nl80211_commands cmd,
7450 enum nl80211_attrs attr,
7451 int vendor_event_idx,
7452 int approxlen, gfp_t gfp)
7453{
f26cbf40 7454 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7455 const struct nl80211_vendor_cmd_info *info;
7456
7457 switch (cmd) {
7458 case NL80211_CMD_TESTMODE:
7459 if (WARN_ON(vendor_event_idx != -1))
7460 return NULL;
7461 info = NULL;
7462 break;
7463 case NL80211_CMD_VENDOR:
7464 if (WARN_ON(vendor_event_idx < 0 ||
7465 vendor_event_idx >= wiphy->n_vendor_events))
7466 return NULL;
7467 info = &wiphy->vendor_events[vendor_event_idx];
7468 break;
7469 default:
7470 WARN_ON(1);
7471 return NULL;
7472 }
7473
6c09e791 7474 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
e03ad6ea
JB		 7475 cmd, attr, info, gfp);
7476}
7477EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7478
7479void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7480{
7481 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7482 void *hdr = ((void **)skb->cb)[1];
7483 struct nlattr *data = ((void **)skb->cb)[2];
7484 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7485
bd8c78e7
JB		 7486 /* clear CB data for netlink core to own from now on */
7487 memset(skb->cb, 0, sizeof(skb->cb));
7488
e03ad6ea
JB		 7489 nla_nest_end(skb, data);
7490 genlmsg_end(skb, hdr);
7491
7492 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7493 mcgrp = NL80211_MCGRP_VENDOR;
7494
7495 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7496 mcgrp, gfp);
7497}
7498EXPORT_SYMBOL(__cfg80211_send_event_skb);
7499
aff89a9b 7500#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7501static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7502{
4c476991 7503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7504 struct wireless_dev *wdev =
7505 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7506 int err;
7507
fc73f11f
DS		 7508 if (!rdev->ops->testmode_cmd)
7509 return -EOPNOTSUPP;
7510
7511 if (IS_ERR(wdev)) {
7512 err = PTR_ERR(wdev);
7513 if (err != -EINVAL)
7514 return err;
7515 wdev = NULL;
7516 } else if (wdev->wiphy != &rdev->wiphy) {
7517 return -EINVAL;
7518 }
7519
aff89a9b
JB		 7520 if (!info->attrs[NL80211_ATTR_TESTDATA])
7521 return -EINVAL;
7522
ad7e718c 7523 rdev->cur_cmd_info = info;
fc73f11f 7524 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7525 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7526 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7527 rdev->cur_cmd_info = NULL;
aff89a9b 7528
aff89a9b
JB		 7529 return err;
7530}
7531
71063f0e
WYG		 7532static int nl80211_testmode_dump(struct sk_buff *skb,
7533 struct netlink_callback *cb)
7534{
00918d33 7535 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7536 int err;
7537 long phy_idx;
7538 void *data = NULL;
7539 int data_len = 0;
7540
5fe231e8
JB		 7541 rtnl_lock();
7542
71063f0e
WYG		 7543 if (cb->args[0]) {
7544 /*
7545 * 0 is a valid index, but not valid for args[0],
7546 * so we need to offset by 1.
7547 */
7548 phy_idx = cb->args[0] - 1;
7549 } else {
7550 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7551 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7552 nl80211_policy);
7553 if (err)
5fe231e8 7554 goto out_err;
00918d33 7555
2bd7e35d
JB		 7556 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7557 nl80211_fam.attrbuf);
7558 if (IS_ERR(rdev)) {
5fe231e8
JB		 7559 err = PTR_ERR(rdev);
7560 goto out_err;
00918d33 7561 }
2bd7e35d
JB		 7562 phy_idx = rdev->wiphy_idx;
7563 rdev = NULL;
2bd7e35d 7564
71063f0e
WYG		 7565 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7566 cb->args[1] =
7567 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7568 }
7569
7570 if (cb->args[1]) {
7571 data = nla_data((void *)cb->args[1]);
7572 data_len = nla_len((void *)cb->args[1]);
7573 }
7574
00918d33
JB		 7575 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7576 if (!rdev) {
5fe231e8
JB		 7577 err = -ENOENT;
7578 goto out_err;
71063f0e 7579 }
71063f0e 7580
00918d33 7581 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7582 err = -EOPNOTSUPP;
7583 goto out_err;
7584 }
7585
7586 while (1) {
15e47304 7587 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7588 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7589 NL80211_CMD_TESTMODE);
7590 struct nlattr *tmdata;
7591
cb35fba3
DC		 7592 if (!hdr)
7593 break;
7594
9360ffd1 7595 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7596 genlmsg_cancel(skb, hdr);
7597 break;
7598 }
7599
7600 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7601 if (!tmdata) {
7602 genlmsg_cancel(skb, hdr);
7603 break;
7604 }
e35e4d28 7605 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7606 nla_nest_end(skb, tmdata);
7607
7608 if (err == -ENOBUFS || err == -ENOENT) {
7609 genlmsg_cancel(skb, hdr);
7610 break;
7611 } else if (err) {
7612 genlmsg_cancel(skb, hdr);
7613 goto out_err;
7614 }
7615
7616 genlmsg_end(skb, hdr);
7617 }
7618
7619 err = skb->len;
7620 /* see above */
7621 cb->args[0] = phy_idx + 1;
7622 out_err:
5fe231e8 7623 rtnl_unlock();
71063f0e
WYG		 7624 return err;
7625}
aff89a9b
JB		 7626#endif
7627
b23aa676
SO		 7628static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7629{
4c476991
JB		 7630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7631 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7632 struct cfg80211_connect_params connect;
7633 struct wiphy *wiphy;
fffd0934 7634 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7635 int err;
7636
7637 memset(&connect, 0, sizeof(connect));
7638
7639 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7640 return -EINVAL;
7641
7642 if (!info->attrs[NL80211_ATTR_SSID] ||
7643 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7644 return -EINVAL;
7645
7646 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7647 connect.auth_type =
7648 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7649 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7650 NL80211_CMD_CONNECT))
b23aa676
SO		 7651 return -EINVAL;
7652 } else
7653 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7654
7655 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7656
c0692b8f 7657 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7658 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7659 if (err)
7660 return err;
b23aa676 7661
074ac8df 7662 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7663 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7664 return -EOPNOTSUPP;
b23aa676 7665
79c97e97 7666 wiphy = &rdev->wiphy;
b23aa676 7667
4486ea98
BS		 7668 connect.bg_scan_period = -1;
7669 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7670 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7671 connect.bg_scan_period =
7672 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7673 }
7674
b23aa676
SO		 7675 if (info->attrs[NL80211_ATTR_MAC])
7676 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7677 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7678 connect.bssid_hint =
7679 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7680 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7681 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7682
7683 if (info->attrs[NL80211_ATTR_IE]) {
7684 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7685 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7686 }
7687
cee00a95
JM		 7688 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7689 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7690 if (connect.mfp != NL80211_MFP_REQUIRED &&
7691 connect.mfp != NL80211_MFP_NO)
7692 return -EINVAL;
7693 } else {
7694 connect.mfp = NL80211_MFP_NO;
7695 }
7696
b23aa676 7697 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7698 connect.channel = nl80211_get_valid_chan(
7699 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7700 if (!connect.channel)
1df4a510
JM		 7701 return -EINVAL;
7702 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7703 connect.channel_hint = nl80211_get_valid_chan(
7704 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7705 if (!connect.channel_hint)
4c476991 7706 return -EINVAL;
b23aa676
SO		 7707 }
7708
fffd0934
JB		 7709 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7710 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7711 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7712 if (IS_ERR(connkeys))
7713 return PTR_ERR(connkeys);
fffd0934
JB		 7714 }
7715
7e7c8926
BG		 7716 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7717 connect.flags |= ASSOC_REQ_DISABLE_HT;
7718
7719 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7720 memcpy(&connect.ht_capa_mask,
7721 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7722 sizeof(connect.ht_capa_mask));
7723
7724 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7725 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7726 kzfree(connkeys);
7e7c8926 7727 return -EINVAL;
b4e4f47e 7728 }
7e7c8926
BG		 7729 memcpy(&connect.ht_capa,
7730 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7731 sizeof(connect.ht_capa));
7732 }
7733
ee2aca34
JB		 7734 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7735 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7736
7737 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7738 memcpy(&connect.vht_capa_mask,
7739 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7740 sizeof(connect.vht_capa_mask));
7741
7742 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7743 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7744 kzfree(connkeys);
ee2aca34
JB		 7745 return -EINVAL;
7746 }
7747 memcpy(&connect.vht_capa,
7748 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7749 sizeof(connect.vht_capa));
7750 }
7751
bab5ab7d
AK		 7752 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7753 if (!(rdev->wiphy.features &
7754 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7755 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7756 return -EINVAL;
7757 connect.flags |= ASSOC_REQ_USE_RRM;
7758 }
7759
83739b03
JB		 7760 wdev_lock(dev->ieee80211_ptr);
7761 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7762 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7763 if (err)
b47f610b 7764 kzfree(connkeys);
b23aa676
SO		 7765 return err;
7766}
7767
7768static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7769{
4c476991
JB		 7770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7771 struct net_device *dev = info->user_ptr[1];
b23aa676 7772 u16 reason;
83739b03 7773 int ret;
b23aa676
SO		 7774
7775 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7776 reason = WLAN_REASON_DEAUTH_LEAVING;
7777 else
7778 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7779
7780 if (reason == 0)
7781 return -EINVAL;
7782
074ac8df 7783 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7784 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7785 return -EOPNOTSUPP;
b23aa676 7786
83739b03
JB		 7787 wdev_lock(dev->ieee80211_ptr);
7788 ret = cfg80211_disconnect(rdev, dev, reason, true);
7789 wdev_unlock(dev->ieee80211_ptr);
7790 return ret;
b23aa676
SO		 7791}
7792
463d0183
JB		 7793static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7794{
4c476991 7795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7796 struct net *net;
7797 int err;
463d0183 7798
4b681c82
VK		 7799 if (info->attrs[NL80211_ATTR_PID]) {
7800 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7801
7802 net = get_net_ns_by_pid(pid);
7803 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7804 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
463d0183 7805
4b681c82
VK		 7806 net = get_net_ns_by_fd(fd);
7807 } else {
7808 return -EINVAL;
7809 }
463d0183 7810
4c476991
JB		 7811 if (IS_ERR(net))
7812 return PTR_ERR(net);
463d0183
JB		 7813
7814 err = 0;
7815
7816 /* check if anything to do */
4c476991
JB		 7817 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7818 err = cfg80211_switch_netns(rdev, net);
463d0183 7819
463d0183 7820 put_net(net);
463d0183
JB		 7821 return err;
7822}
7823
67fbb16b
SO		 7824static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7825{
4c476991 7826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7827 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7828 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7829 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7830 struct cfg80211_pmksa pmksa;
7831
7832 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7833
7834 if (!info->attrs[NL80211_ATTR_MAC])
7835 return -EINVAL;
7836
7837 if (!info->attrs[NL80211_ATTR_PMKID])
7838 return -EINVAL;
7839
67fbb16b
SO		 7840 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7841 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
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
SO		 7846
7847 switch (info->genlhdr->cmd) {
7848 case NL80211_CMD_SET_PMKSA:
7849 rdev_ops = rdev->ops->set_pmksa;
7850 break;
7851 case NL80211_CMD_DEL_PMKSA:
7852 rdev_ops = rdev->ops->del_pmksa;
7853 break;
7854 default:
7855 WARN_ON(1);
7856 break;
7857 }
7858
4c476991
JB		 7859 if (!rdev_ops)
7860 return -EOPNOTSUPP;
67fbb16b 7861
4c476991 7862 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7863}
7864
7865static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7866{
4c476991
JB		 7867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7868 struct net_device *dev = info->user_ptr[1];
67fbb16b 7869
074ac8df 7870 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7871 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7872 return -EOPNOTSUPP;
67fbb16b 7873
4c476991
JB		 7874 if (!rdev->ops->flush_pmksa)
7875 return -EOPNOTSUPP;
67fbb16b 7876
e35e4d28 7877 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7878}
7879
109086ce
AN		 7880static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7881{
7882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7883 struct net_device *dev = info->user_ptr[1];
7884 u8 action_code, dialog_token;
df942e7b 7885 u32 peer_capability = 0;
109086ce
AN		 7886 u16 status_code;
7887 u8 *peer;
31fa97c5 7888 bool initiator;
109086ce
AN		 7889
7890 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7891 !rdev->ops->tdls_mgmt)
7892 return -EOPNOTSUPP;
7893
7894 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7895 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7896 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7897 !info->attrs[NL80211_ATTR_IE] ||
7898 !info->attrs[NL80211_ATTR_MAC])
7899 return -EINVAL;
7900
7901 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7902 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7903 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7904 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7905 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7906 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7907 peer_capability =
7908 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7909
e35e4d28 7910 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7911 dialog_token, status_code, peer_capability,
31fa97c5 7912 initiator,
e35e4d28
HG		 7913 nla_data(info->attrs[NL80211_ATTR_IE]),
7914 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7915}
7916
7917static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7918{
7919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7920 struct net_device *dev = info->user_ptr[1];
7921 enum nl80211_tdls_operation operation;
7922 u8 *peer;
7923
7924 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7925 !rdev->ops->tdls_oper)
7926 return -EOPNOTSUPP;
7927
7928 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7929 !info->attrs[NL80211_ATTR_MAC])
7930 return -EINVAL;
7931
7932 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7933 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7934
e35e4d28 7935 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7936}
7937
9588bbd5
JM		 7938static int nl80211_remain_on_channel(struct sk_buff *skb,
7939 struct genl_info *info)
7940{
4c476991 7941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7942 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7943 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7944 struct sk_buff *msg;
7945 void *hdr;
7946 u64 cookie;
683b6d3b 7947 u32 duration;
9588bbd5
JM		 7948 int err;
7949
7950 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7951 !info->attrs[NL80211_ATTR_DURATION])
7952 return -EINVAL;
7953
7954 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7955
ebf348fc
JB		 7956 if (!rdev->ops->remain_on_channel ||
7957 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7958 return -EOPNOTSUPP;
7959
9588bbd5 7960 /*
ebf348fc
JB		 7961 * We should be on that channel for at least a minimum amount of
7962 * time (10ms) but no longer than the driver supports.
9588bbd5 7963 */
ebf348fc 7964 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7965 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7966 return -EINVAL;
7967
683b6d3b
JB		 7968 err = nl80211_parse_chandef(rdev, info, &chandef);
7969 if (err)
7970 return err;
9588bbd5
JM		 7971
7972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7973 if (!msg)
7974 return -ENOMEM;
9588bbd5 7975
15e47304 7976 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7977 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7978 if (!hdr) {
7979 err = -ENOBUFS;
9588bbd5
JM		 7980 goto free_msg;
7981 }
7982
683b6d3b
JB		 7983 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7984 duration, &cookie);
9588bbd5
JM		 7985
7986 if (err)
7987 goto free_msg;
7988
9360ffd1
DM		 7989 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7990 goto nla_put_failure;
9588bbd5
JM		 7991
7992 genlmsg_end(msg, hdr);
4c476991
JB		 7993
7994 return genlmsg_reply(msg, info);
9588bbd5
JM		 7995
7996 nla_put_failure:
7997 err = -ENOBUFS;
7998 free_msg:
7999 nlmsg_free(msg);
9588bbd5
JM		 8000 return err;
8001}
8002
8003static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8004 struct genl_info *info)
8005{
4c476991 8006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8007 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 8008 u64 cookie;
9588bbd5
JM		 8009
8010 if (!info->attrs[NL80211_ATTR_COOKIE])
8011 return -EINVAL;
8012
4c476991
JB		 8013 if (!rdev->ops->cancel_remain_on_channel)
8014 return -EOPNOTSUPP;
9588bbd5 8015
9588bbd5
JM		 8016 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8017
e35e4d28 8018 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 8019}
8020
13ae75b1
JM		 8021static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8022 u8 *rates, u8 rates_len)
8023{
8024 u8 i;
8025 u32 mask = 0;
8026
8027 for (i = 0; i < rates_len; i++) {
8028 int rate = (rates[i] & 0x7f) * 5;
8029 int ridx;
8030 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8031 struct ieee80211_rate *srate =
8032 &sband->bitrates[ridx];
8033 if (rate == srate->bitrate) {
8034 mask |= 1 << ridx;
8035 break;
8036 }
8037 }
8038 if (ridx == sband->n_bitrates)
8039 return 0; /* rate not found */
8040 }
8041
8042 return mask;
8043}
8044
24db78c0
SW		 8045static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8046 u8 *rates, u8 rates_len,
8047 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8048{
8049 u8 i;
8050
8051 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8052
8053 for (i = 0; i < rates_len; i++) {
8054 int ridx, rbit;
8055
8056 ridx = rates[i] / 8;
8057 rbit = BIT(rates[i] % 8);
8058
8059 /* check validity */
910570b5 8060 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8061 return false;
8062
8063 /* check availability */
8064 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8065 mcs[ridx] |= rbit;
8066 else
8067 return false;
8068 }
8069
8070 return true;
8071}
8072
204e35a9
JD		 8073static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8074{
8075 u16 mcs_mask = 0;
8076
8077 switch (vht_mcs_map) {
8078 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8079 break;
8080 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8081 mcs_mask = 0x00FF;
8082 break;
8083 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8084 mcs_mask = 0x01FF;
8085 break;
8086 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8087 mcs_mask = 0x03FF;
8088 break;
8089 default:
8090 break;
8091 }
8092
8093 return mcs_mask;
8094}
8095
8096static void vht_build_mcs_mask(u16 vht_mcs_map,
8097 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8098{
8099 u8 nss;
8100
8101 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8102 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8103 vht_mcs_map >>= 2;
8104 }
8105}
8106
8107static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8108 struct nl80211_txrate_vht *txrate,
8109 u16 mcs[NL80211_VHT_NSS_MAX])
8110{
8111 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8112 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8113 u8 i;
8114
8115 if (!sband->vht_cap.vht_supported)
8116 return false;
8117
8118 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8119
8120 /* Build vht_mcs_mask from VHT capabilities */
8121 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8122
8123 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8124 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8125 mcs[i] = txrate->mcs[i];
8126 else
8127 return false;
8128 }
8129
8130 return true;
8131}
8132
b54452b0 8133static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8134 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8135 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8136 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8137 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8138 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8139 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8140};
8141
8142static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8143 struct genl_info *info)
8144{
8145 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8147 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8148 int rem, i;
8149 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8150 struct nlattr *tx_rates;
8151 struct ieee80211_supported_band *sband;
204e35a9 8152 u16 vht_tx_mcs_map;
13ae75b1 8153
4c476991
JB		 8154 if (!rdev->ops->set_bitrate_mask)
8155 return -EOPNOTSUPP;
13ae75b1
JM		 8156
8157 memset(&mask, 0, sizeof(mask));
8158 /* Default to all rates enabled */
8159 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8160 sband = rdev->wiphy.bands[i];
7869303b
JD		 8161
8162 if (!sband)
8163 continue;
8164
8165 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8166 memcpy(mask.control[i].ht_mcs,
7869303b 8167 sband->ht_cap.mcs.rx_mask,
d1e33e65 8168 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8169
8170 if (!sband->vht_cap.vht_supported)
8171 continue;
8172
8173 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8174 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8175 }
8176
b9243ab0
JD		 8177 /* if no rates are given set it back to the defaults */
8178 if (!info->attrs[NL80211_ATTR_TX_RATES])
8179 goto out;
8180
13ae75b1
JM		 8181 /*
8182 * The nested attribute uses enum nl80211_band as the index. This maps
8183 * directly to the enum ieee80211_band values used in cfg80211.
8184 */
24db78c0 8185 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8186 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8187 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8188 int err;
8189
4c476991
JB		 8190 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8191 return -EINVAL;
13ae75b1 8192 sband = rdev->wiphy.bands[band];
4c476991
JB		 8193 if (sband == NULL)
8194 return -EINVAL;
ae811e21
JB		 8195 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8196 nla_len(tx_rates), nl80211_txattr_policy);
8197 if (err)
8198 return err;
13ae75b1
JM		 8199 if (tb[NL80211_TXRATE_LEGACY]) {
8200 mask.control[band].legacy = rateset_to_mask(
8201 sband,
8202 nla_data(tb[NL80211_TXRATE_LEGACY]),
8203 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8204 if ((mask.control[band].legacy == 0) &&
8205 nla_len(tb[NL80211_TXRATE_LEGACY]))
8206 return -EINVAL;
24db78c0 8207 }
d1e33e65 8208 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8209 if (!ht_rateset_to_mask(
8210 sband,
d1e33e65
JD		 8211 nla_data(tb[NL80211_TXRATE_HT]),
8212 nla_len(tb[NL80211_TXRATE_HT]),
8213 mask.control[band].ht_mcs))
24db78c0
SW		 8214 return -EINVAL;
8215 }
204e35a9
JD		 8216 if (tb[NL80211_TXRATE_VHT]) {
8217 if (!vht_set_mcs_mask(
8218 sband,
8219 nla_data(tb[NL80211_TXRATE_VHT]),
8220 mask.control[band].vht_mcs))
8221 return -EINVAL;
8222 }
0b9323f6
JD		 8223 if (tb[NL80211_TXRATE_GI]) {
8224 mask.control[band].gi =
8225 nla_get_u8(tb[NL80211_TXRATE_GI]);
8226 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8227 return -EINVAL;
8228 }
24db78c0
SW		 8229
8230 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8231 /* don't allow empty legacy rates if HT or VHT
8232 * are not even supported.
8233 */
8234 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8235 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8236 return -EINVAL;
8237
8238 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8239 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8240 goto out;
8241
8242 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8243 if (mask.control[band].vht_mcs[i])
8244 goto out;
24db78c0
SW		 8245
8246 /* legacy and mcs rates may not be both empty */
204e35a9 8247 return -EINVAL;
13ae75b1
JM		 8248 }
8249 }
8250
b9243ab0 8251out:
e35e4d28 8252 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8253}
8254
2e161f78 8255static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8256{
4c476991 8257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8258 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8259 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8260
8261 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8262 return -EINVAL;
8263
2e161f78
JB		 8264 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8265 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8266
71bbc994
JB		 8267 switch (wdev->iftype) {
8268 case NL80211_IFTYPE_STATION:
8269 case NL80211_IFTYPE_ADHOC:
8270 case NL80211_IFTYPE_P2P_CLIENT:
8271 case NL80211_IFTYPE_AP:
8272 case NL80211_IFTYPE_AP_VLAN:
8273 case NL80211_IFTYPE_MESH_POINT:
8274 case NL80211_IFTYPE_P2P_GO:
98104fde 8275 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8276 break;
8277 default:
4c476991 8278 return -EOPNOTSUPP;
71bbc994 8279 }
026331c4
JM		 8280
8281 /* not much point in registering if we can't reply */
4c476991
JB		 8282 if (!rdev->ops->mgmt_tx)
8283 return -EOPNOTSUPP;
026331c4 8284
15e47304 8285 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8286 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8287 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8288}
8289
2e161f78 8290static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8291{
4c476991 8292 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8293 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8294 struct cfg80211_chan_def chandef;
026331c4 8295 int err;
d64d373f 8296 void *hdr = NULL;
026331c4 8297 u64 cookie;
e247bd90 8298 struct sk_buff *msg = NULL;
b176e629
AO		 8299 struct cfg80211_mgmt_tx_params params = {
8300 .dont_wait_for_ack =
8301 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8302 };
026331c4 8303
683b6d3b 8304 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8305 return -EINVAL;
8306
4c476991
JB		 8307 if (!rdev->ops->mgmt_tx)
8308 return -EOPNOTSUPP;
026331c4 8309
71bbc994 8310 switch (wdev->iftype) {
ea141b75
AQ		 8311 case NL80211_IFTYPE_P2P_DEVICE:
8312 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8313 return -EINVAL;
71bbc994
JB		 8314 case NL80211_IFTYPE_STATION:
8315 case NL80211_IFTYPE_ADHOC:
8316 case NL80211_IFTYPE_P2P_CLIENT:
8317 case NL80211_IFTYPE_AP:
8318 case NL80211_IFTYPE_AP_VLAN:
8319 case NL80211_IFTYPE_MESH_POINT:
8320 case NL80211_IFTYPE_P2P_GO:
8321 break;
8322 default:
4c476991 8323 return -EOPNOTSUPP;
71bbc994 8324 }
026331c4 8325
f7ca38df 8326 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8327 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8328 return -EINVAL;
b176e629 8329 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8330
8331 /*
8332 * We should wait on the channel for at least a minimum amount
8333 * of time (10ms) but no longer than the driver supports.
8334 */
b176e629
AO		 8335 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8336 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8337 return -EINVAL;
8338
f7ca38df
JB		 8339 }
8340
b176e629 8341 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8342
b176e629 8343 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8344 return -EINVAL;
8345
b176e629 8346 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8347
ea141b75
AQ		 8348 /* get the channel if any has been specified, otherwise pass NULL to
8349 * the driver. The latter will use the current one
8350 */
8351 chandef.chan = NULL;
8352 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8353 err = nl80211_parse_chandef(rdev, info, &chandef);
8354 if (err)
8355 return err;
8356 }
8357
b176e629 8358 if (!chandef.chan && params.offchan)
ea141b75 8359 return -EINVAL;
026331c4 8360
34d22ce2
AO		 8361 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8362 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8363
8364 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8365 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8366 int i;
8367
8368 if (len % sizeof(u16))
8369 return -EINVAL;
8370
8371 params.n_csa_offsets = len / sizeof(u16);
8372 params.csa_offsets =
8373 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8374
8375 /* check that all the offsets fit the frame */
8376 for (i = 0; i < params.n_csa_offsets; i++) {
8377 if (params.csa_offsets[i] >= params.len)
8378 return -EINVAL;
8379 }
8380 }
8381
b176e629 8382 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8384 if (!msg)
8385 return -ENOMEM;
026331c4 8386
15e47304 8387 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8388 NL80211_CMD_FRAME);
cb35fba3
DC		 8389 if (!hdr) {
8390 err = -ENOBUFS;
e247bd90
JB		 8391 goto free_msg;
8392 }
026331c4 8393 }
e247bd90 8394
b176e629
AO		 8395 params.chan = chandef.chan;
8396 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8397 if (err)
8398 goto free_msg;
8399
e247bd90 8400 if (msg) {
9360ffd1
DM		 8401 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8402 goto nla_put_failure;
026331c4 8403
e247bd90
JB		 8404 genlmsg_end(msg, hdr);
8405 return genlmsg_reply(msg, info);
8406 }
8407
8408 return 0;
026331c4
JM		 8409
8410 nla_put_failure:
8411 err = -ENOBUFS;
8412 free_msg:
8413 nlmsg_free(msg);
026331c4
JM		 8414 return err;
8415}
8416
f7ca38df
JB		 8417static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8418{
8419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8420 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8421 u64 cookie;
8422
8423 if (!info->attrs[NL80211_ATTR_COOKIE])
8424 return -EINVAL;
8425
8426 if (!rdev->ops->mgmt_tx_cancel_wait)
8427 return -EOPNOTSUPP;
8428
71bbc994
JB		 8429 switch (wdev->iftype) {
8430 case NL80211_IFTYPE_STATION:
8431 case NL80211_IFTYPE_ADHOC:
8432 case NL80211_IFTYPE_P2P_CLIENT:
8433 case NL80211_IFTYPE_AP:
8434 case NL80211_IFTYPE_AP_VLAN:
8435 case NL80211_IFTYPE_P2P_GO:
98104fde 8436 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8437 break;
8438 default:
f7ca38df 8439 return -EOPNOTSUPP;
71bbc994 8440 }
f7ca38df
JB		 8441
8442 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8443
e35e4d28 8444 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8445}
8446
ffb9eb3d
KV		 8447static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8448{
4c476991 8449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8450 struct wireless_dev *wdev;
4c476991 8451 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8452 u8 ps_state;
8453 bool state;
8454 int err;
8455
4c476991
JB		 8456 if (!info->attrs[NL80211_ATTR_PS_STATE])
8457 return -EINVAL;
ffb9eb3d
KV		 8458
8459 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8460
4c476991
JB		 8461 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8462 return -EINVAL;
ffb9eb3d
KV		 8463
8464 wdev = dev->ieee80211_ptr;
8465
4c476991
JB		 8466 if (!rdev->ops->set_power_mgmt)
8467 return -EOPNOTSUPP;
ffb9eb3d
KV		 8468
8469 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8470
8471 if (state == wdev->ps)
4c476991 8472 return 0;
ffb9eb3d 8473
e35e4d28 8474 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8475 if (!err)
8476 wdev->ps = state;
ffb9eb3d
KV		 8477 return err;
8478}
8479
8480static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8481{
4c476991 8482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8483 enum nl80211_ps_state ps_state;
8484 struct wireless_dev *wdev;
4c476991 8485 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8486 struct sk_buff *msg;
8487 void *hdr;
8488 int err;
8489
ffb9eb3d
KV		 8490 wdev = dev->ieee80211_ptr;
8491
4c476991
JB		 8492 if (!rdev->ops->set_power_mgmt)
8493 return -EOPNOTSUPP;
ffb9eb3d
KV		 8494
8495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8496 if (!msg)
8497 return -ENOMEM;
ffb9eb3d 8498
15e47304 8499 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8500 NL80211_CMD_GET_POWER_SAVE);
8501 if (!hdr) {
4c476991 8502 err = -ENOBUFS;
ffb9eb3d
KV		 8503 goto free_msg;
8504 }
8505
8506 if (wdev->ps)
8507 ps_state = NL80211_PS_ENABLED;
8508 else
8509 ps_state = NL80211_PS_DISABLED;
8510
9360ffd1
DM		 8511 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8512 goto nla_put_failure;
ffb9eb3d
KV		 8513
8514 genlmsg_end(msg, hdr);
4c476991 8515 return genlmsg_reply(msg, info);
ffb9eb3d 8516
4c476991 8517 nla_put_failure:
ffb9eb3d 8518 err = -ENOBUFS;
4c476991 8519 free_msg:
ffb9eb3d 8520 nlmsg_free(msg);
ffb9eb3d
KV		 8521 return err;
8522}
8523
94e860f1
JB		 8524static const struct nla_policy
8525nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8526 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8527 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8528 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8529 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8530 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8531 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8532};
8533
84f10708 8534static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8535 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8536{
8537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8538 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8539 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8540
d9d8b019 8541 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8542 return -EINVAL;
8543
84f10708
TP		 8544 if (!rdev->ops->set_cqm_txe_config)
8545 return -EOPNOTSUPP;
8546
8547 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8548 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8549 return -EOPNOTSUPP;
8550
e35e4d28 8551 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8552}
8553
d6dc1a38
JO		 8554static int nl80211_set_cqm_rssi(struct genl_info *info,
8555 s32 threshold, u32 hysteresis)
8556{
4c476991 8557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8558 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8559 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8560
8561 if (threshold > 0)
8562 return -EINVAL;
8563
1da5fcc8
JB		 8564 /* disabling - hysteresis should also be zero then */
8565 if (threshold == 0)
8566 hysteresis = 0;
d6dc1a38 8567
4c476991
JB		 8568 if (!rdev->ops->set_cqm_rssi_config)
8569 return -EOPNOTSUPP;
d6dc1a38 8570
074ac8df 8571 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8572 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8573 return -EOPNOTSUPP;
d6dc1a38 8574
e35e4d28 8575 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8576}
8577
8578static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8579{
8580 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8581 struct nlattr *cqm;
8582 int err;
8583
8584 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8585 if (!cqm)
8586 return -EINVAL;
d6dc1a38
JO		 8587
8588 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8589 nl80211_attr_cqm_policy);
8590 if (err)
1da5fcc8 8591 return err;
d6dc1a38
JO		 8592
8593 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8594 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8595 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8596 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8597
1da5fcc8
JB		 8598 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8599 }
8600
8601 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8602 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8603 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8604 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8605 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8606 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8607
8608 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8609 }
8610
8611 return -EINVAL;
d6dc1a38
JO		 8612}
8613
6e0bd6c3
RL		 8614static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8615{
8616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8617 struct net_device *dev = info->user_ptr[1];
8618 struct ocb_setup setup = {};
8619 int err;
8620
8621 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8622 if (err)
8623 return err;
8624
8625 return cfg80211_join_ocb(rdev, dev, &setup);
8626}
8627
8628static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8629{
8630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8631 struct net_device *dev = info->user_ptr[1];
8632
8633 return cfg80211_leave_ocb(rdev, dev);
8634}
8635
29cbe68c
JB		 8636static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8637{
8638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8639 struct net_device *dev = info->user_ptr[1];
8640 struct mesh_config cfg;
c80d545d 8641 struct mesh_setup setup;
29cbe68c
JB		 8642 int err;
8643
8644 /* start with default */
8645 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8646 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8647
24bdd9f4 8648 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8649 /* and parse parameters if given */
24bdd9f4 8650 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8651 if (err)
8652 return err;
8653 }
8654
8655 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8656 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8657 return -EINVAL;
8658
c80d545d
JC		 8659 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8660 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8661
4bb62344
CYY		 8662 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8663 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8664 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8665 return -EINVAL;
8666
9bdbf04d
MP		 8667 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8668 setup.beacon_interval =
8669 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8670 if (setup.beacon_interval < 10 ||
8671 setup.beacon_interval > 10000)
8672 return -EINVAL;
8673 }
8674
8675 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8676 setup.dtim_period =
8677 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8678 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8679 return -EINVAL;
8680 }
8681
c80d545d
JC		 8682 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8683 /* parse additional setup parameters if given */
8684 err = nl80211_parse_mesh_setup(info, &setup);
8685 if (err)
8686 return err;
8687 }
8688
d37bb18a
TP		 8689 if (setup.user_mpm)
8690 cfg.auto_open_plinks = false;
8691
cc1d2806 8692 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8693 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8694 if (err)
8695 return err;
cc1d2806
JB		 8696 } else {
8697 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8698 setup.chandef.chan = NULL;
cc1d2806
JB		 8699 }
8700
ffb3cf30
AN		 8701 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8702 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8703 int n_rates =
8704 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8705 struct ieee80211_supported_band *sband;
8706
8707 if (!setup.chandef.chan)
8708 return -EINVAL;
8709
8710 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8711
8712 err = ieee80211_get_ratemask(sband, rates, n_rates,
8713 &setup.basic_rates);
8714 if (err)
8715 return err;
8716 }
8717
c80d545d 8718 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8719}
8720
8721static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8722{
8723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8724 struct net_device *dev = info->user_ptr[1];
8725
8726 return cfg80211_leave_mesh(rdev, dev);
8727}
8728
dfb89c56 8729#ifdef CONFIG_PM
bb92d199
AK		 8730static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8731 struct cfg80211_registered_device *rdev)
8732{
6abb9cb9 8733 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8734 struct nlattr *nl_pats, *nl_pat;
8735 int i, pat_len;
8736
6abb9cb9 8737 if (!wowlan->n_patterns)
bb92d199
AK		 8738 return 0;
8739
8740 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8741 if (!nl_pats)
8742 return -ENOBUFS;
8743
6abb9cb9 8744 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8745 nl_pat = nla_nest_start(msg, i + 1);
8746 if (!nl_pat)
8747 return -ENOBUFS;
6abb9cb9 8748 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8749 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8750 wowlan->patterns[i].mask) ||
50ac6607
AK		 8751 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8752 wowlan->patterns[i].pattern) ||
8753 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8754 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8755 return -ENOBUFS;
8756 nla_nest_end(msg, nl_pat);
8757 }
8758 nla_nest_end(msg, nl_pats);
8759
8760 return 0;
8761}
8762
2a0e047e
JB		 8763static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8764 struct cfg80211_wowlan_tcp *tcp)
8765{
8766 struct nlattr *nl_tcp;
8767
8768 if (!tcp)
8769 return 0;
8770
8771 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8772 if (!nl_tcp)
8773 return -ENOBUFS;
8774
8775 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8776 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8777 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8778 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8779 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8780 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8781 tcp->payload_len, tcp->payload) ||
8782 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8783 tcp->data_interval) ||
8784 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8785 tcp->wake_len, tcp->wake_data) ||
8786 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8787 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8788 return -ENOBUFS;
8789
8790 if (tcp->payload_seq.len &&
8791 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8792 sizeof(tcp->payload_seq), &tcp->payload_seq))
8793 return -ENOBUFS;
8794
8795 if (tcp->payload_tok.len &&
8796 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8797 sizeof(tcp->payload_tok) + tcp->tokens_size,
8798 &tcp->payload_tok))
8799 return -ENOBUFS;
8800
e248ad30
JB		 8801 nla_nest_end(msg, nl_tcp);
8802
2a0e047e
JB		 8803 return 0;
8804}
8805
75453ccb
LC		 8806static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8807 struct cfg80211_sched_scan_request *req)
8808{
8809 struct nlattr *nd, *freqs, *matches, *match;
8810 int i;
8811
8812 if (!req)
8813 return 0;
8814
8815 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8816 if (!nd)
8817 return -ENOBUFS;
8818
8819 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8820 return -ENOBUFS;
8821
8822 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8823 if (!freqs)
8824 return -ENOBUFS;
8825
8826 for (i = 0; i < req->n_channels; i++)
8827 nla_put_u32(msg, i, req->channels[i]->center_freq);
8828
8829 nla_nest_end(msg, freqs);
8830
8831 if (req->n_match_sets) {
8832 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8833 for (i = 0; i < req->n_match_sets; i++) {
8834 match = nla_nest_start(msg, i);
8835 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8836 req->match_sets[i].ssid.ssid_len,
8837 req->match_sets[i].ssid.ssid);
8838 nla_nest_end(msg, match);
8839 }
8840 nla_nest_end(msg, matches);
8841 }
8842
8843 nla_nest_end(msg, nd);
8844
8845 return 0;
8846}
8847
ff1b6e69
JB		 8848static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8849{
8850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8851 struct sk_buff *msg;
8852 void *hdr;
2a0e047e 8853 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8854
964dc9e2 8855 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8856 return -EOPNOTSUPP;
8857
6abb9cb9 8858 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8859 /* adjust size to have room for all the data */
6abb9cb9
JB		 8860 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8861 rdev->wiphy.wowlan_config->tcp->payload_len +
8862 rdev->wiphy.wowlan_config->tcp->wake_len +
8863 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8864 }
8865
8866 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8867 if (!msg)
8868 return -ENOMEM;
8869
15e47304 8870 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8871 NL80211_CMD_GET_WOWLAN);
8872 if (!hdr)
8873 goto nla_put_failure;
8874
6abb9cb9 8875 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8876 struct nlattr *nl_wowlan;
8877
8878 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8879 if (!nl_wowlan)
8880 goto nla_put_failure;
8881
6abb9cb9 8882 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8883 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8884 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8885 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8886 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8887 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8888 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8889 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8890 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8891 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8892 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8893 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8894 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8896 goto nla_put_failure;
2a0e047e 8897
bb92d199
AK		 8898 if (nl80211_send_wowlan_patterns(msg, rdev))
8899 goto nla_put_failure;
2a0e047e 8900
6abb9cb9
JB		 8901 if (nl80211_send_wowlan_tcp(msg,
8902 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8903 goto nla_put_failure;
75453ccb
LC		 8904
8905 if (nl80211_send_wowlan_nd(
8906 msg,
8907 rdev->wiphy.wowlan_config->nd_config))
8908 goto nla_put_failure;
2a0e047e 8909
ff1b6e69
JB		 8910 nla_nest_end(msg, nl_wowlan);
8911 }
8912
8913 genlmsg_end(msg, hdr);
8914 return genlmsg_reply(msg, info);
8915
8916nla_put_failure:
8917 nlmsg_free(msg);
8918 return -ENOBUFS;
8919}
8920
2a0e047e
JB		 8921static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8922 struct nlattr *attr,
8923 struct cfg80211_wowlan *trig)
8924{
8925 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8926 struct cfg80211_wowlan_tcp *cfg;
8927 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8928 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8929 u32 size;
8930 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8931 int err, port;
8932
964dc9e2 8933 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8934 return -EINVAL;
8935
8936 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8937 nla_data(attr), nla_len(attr),
8938 nl80211_wowlan_tcp_policy);
8939 if (err)
8940 return err;
8941
8942 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8943 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8944 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8945 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8946 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8947 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8948 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8949 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8950 return -EINVAL;
8951
8952 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8953 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8954 return -EINVAL;
8955
8956 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8957 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8958 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8959 return -EINVAL;
8960
8961 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8962 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8963 return -EINVAL;
8964
8965 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8966 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8967 return -EINVAL;
8968
8969 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8970 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8971
8972 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8973 tokens_size = tokln - sizeof(*tok);
8974
8975 if (!tok->len || tokens_size % tok->len)
8976 return -EINVAL;
964dc9e2 8977 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8978 return -EINVAL;
964dc9e2 8979 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8980 return -EINVAL;
964dc9e2 8981 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8982 return -EINVAL;
964dc9e2 8983 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8984 return -EINVAL;
8985 if (tok->offset + tok->len > data_size)
8986 return -EINVAL;
8987 }
8988
8989 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8990 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8991 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8992 return -EINVAL;
8993 if (seq->len == 0 || seq->len > 4)
8994 return -EINVAL;
8995 if (seq->len + seq->offset > data_size)
8996 return -EINVAL;
8997 }
8998
8999 size = sizeof(*cfg);
9000 size += data_size;
9001 size += wake_size + wake_mask_size;
9002 size += tokens_size;
9003
9004 cfg = kzalloc(size, GFP_KERNEL);
9005 if (!cfg)
9006 return -ENOMEM;
9007 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9008 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9009 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9010 ETH_ALEN);
9011 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9012 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9013 else
9014 port = 0;
9015#ifdef CONFIG_INET
9016 /* allocate a socket and port for it and use it */
9017 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9018 IPPROTO_TCP, &cfg->sock, 1);
9019 if (err) {
9020 kfree(cfg);
9021 return err;
9022 }
9023 if (inet_csk_get_port(cfg->sock->sk, port)) {
9024 sock_release(cfg->sock);
9025 kfree(cfg);
9026 return -EADDRINUSE;
9027 }
9028 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9029#else
9030 if (!port) {
9031 kfree(cfg);
9032 return -EINVAL;
9033 }
9034 cfg->src_port = port;
9035#endif
9036
9037 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9038 cfg->payload_len = data_size;
9039 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9040 memcpy((void *)cfg->payload,
9041 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9042 data_size);
9043 if (seq)
9044 cfg->payload_seq = *seq;
9045 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9046 cfg->wake_len = wake_size;
9047 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9048 memcpy((void *)cfg->wake_data,
9049 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9050 wake_size);
9051 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9052 data_size + wake_size;
9053 memcpy((void *)cfg->wake_mask,
9054 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9055 wake_mask_size);
9056 if (tok) {
9057 cfg->tokens_size = tokens_size;
9058 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9059 }
9060
9061 trig->tcp = cfg;
9062
9063 return 0;
9064}
9065
8cd4d456
LC		 9066static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9067 const struct wiphy_wowlan_support *wowlan,
9068 struct nlattr *attr,
9069 struct cfg80211_wowlan *trig)
9070{
9071 struct nlattr **tb;
9072 int err;
9073
9074 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9075 if (!tb)
9076 return -ENOMEM;
9077
9078 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9079 err = -EOPNOTSUPP;
9080 goto out;
9081 }
9082
9083 err = nla_parse(tb, NL80211_ATTR_MAX,
9084 nla_data(attr), nla_len(attr),
9085 nl80211_policy);
9086 if (err)
9087 goto out;
9088
ad2b26ab 9089 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9090 err = PTR_ERR_OR_ZERO(trig->nd_config);
9091 if (err)
9092 trig->nd_config = NULL;
9093
9094out:
9095 kfree(tb);
9096 return err;
9097}
9098
ff1b6e69
JB		 9099static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9100{
9101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9102 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9103 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9104 struct cfg80211_wowlan *ntrig;
964dc9e2 9105 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9106 int err, i;
6abb9cb9 9107 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 9108
964dc9e2 9109 if (!wowlan)
ff1b6e69
JB		 9110 return -EOPNOTSUPP;
9111
ae33bd81
JB		 9112 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9113 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9114 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9115 goto set_wakeup;
9116 }
ff1b6e69
JB		 9117
9118 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9119 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9120 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9121 nl80211_wowlan_policy);
9122 if (err)
9123 return err;
9124
9125 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9126 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9127 return -EINVAL;
9128 new_triggers.any = true;
9129 }
9130
9131 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9132 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9133 return -EINVAL;
9134 new_triggers.disconnect = true;
9135 }
9136
9137 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9138 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9139 return -EINVAL;
9140 new_triggers.magic_pkt = true;
9141 }
9142
77dbbb13
JB		 9143 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9144 return -EINVAL;
9145
9146 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9147 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9148 return -EINVAL;
9149 new_triggers.gtk_rekey_failure = true;
9150 }
9151
9152 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9153 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9154 return -EINVAL;
9155 new_triggers.eap_identity_req = true;
9156 }
9157
9158 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9159 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9160 return -EINVAL;
9161 new_triggers.four_way_handshake = true;
9162 }
9163
9164 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9165 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9166 return -EINVAL;
9167 new_triggers.rfkill_release = true;
9168 }
9169
ff1b6e69
JB		 9170 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9171 struct nlattr *pat;
9172 int n_patterns = 0;
bb92d199 9173 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9174 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9175
9176 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9177 rem)
9178 n_patterns++;
9179 if (n_patterns > wowlan->n_patterns)
9180 return -EINVAL;
9181
9182 new_triggers.patterns = kcalloc(n_patterns,
9183 sizeof(new_triggers.patterns[0]),
9184 GFP_KERNEL);
9185 if (!new_triggers.patterns)
9186 return -ENOMEM;
9187
9188 new_triggers.n_patterns = n_patterns;
9189 i = 0;
9190
9191 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9192 rem) {
922bd80f
JB		 9193 u8 *mask_pat;
9194
50ac6607
AK		 9195 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9196 nla_len(pat), NULL);
ff1b6e69 9197 err = -EINVAL;
50ac6607
AK		 9198 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9199 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9200 goto error;
50ac6607 9201 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9202 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9203 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9204 goto error;
9205 if (pat_len > wowlan->pattern_max_len ||
9206 pat_len < wowlan->pattern_min_len)
9207 goto error;
9208
50ac6607 9209 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9210 pkt_offset = 0;
9211 else
9212 pkt_offset = nla_get_u32(
50ac6607 9213 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9214 if (pkt_offset > wowlan->max_pkt_offset)
9215 goto error;
9216 new_triggers.patterns[i].pkt_offset = pkt_offset;
9217
922bd80f
JB		 9218 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9219 if (!mask_pat) {
ff1b6e69
JB		 9220 err = -ENOMEM;
9221 goto error;
9222 }
922bd80f
JB		 9223 new_triggers.patterns[i].mask = mask_pat;
9224 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9225 mask_len);
922bd80f
JB		 9226 mask_pat += mask_len;
9227 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9228 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9229 memcpy(mask_pat,
50ac6607 9230 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9231 pat_len);
9232 i++;
9233 }
9234 }
9235
2a0e047e
JB		 9236 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9237 err = nl80211_parse_wowlan_tcp(
9238 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9239 &new_triggers);
9240 if (err)
9241 goto error;
9242 }
9243
8cd4d456
LC		 9244 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9245 err = nl80211_parse_wowlan_nd(
9246 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9247 &new_triggers);
9248 if (err)
9249 goto error;
9250 }
9251
ae33bd81
JB		 9252 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9253 if (!ntrig) {
9254 err = -ENOMEM;
9255 goto error;
ff1b6e69 9256 }
ae33bd81 9257 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9258 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9259
ae33bd81 9260 set_wakeup:
6abb9cb9
JB		 9261 if (rdev->ops->set_wakeup &&
9262 prev_enabled != !!rdev->wiphy.wowlan_config)
9263 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9264
ff1b6e69
JB		 9265 return 0;
9266 error:
9267 for (i = 0; i < new_triggers.n_patterns; i++)
9268 kfree(new_triggers.patterns[i].mask);
9269 kfree(new_triggers.patterns);
2a0e047e
JB		 9270 if (new_triggers.tcp && new_triggers.tcp->sock)
9271 sock_release(new_triggers.tcp->sock);
9272 kfree(new_triggers.tcp);
ff1b6e69
JB		 9273 return err;
9274}
dfb89c56 9275#endif
ff1b6e69 9276
be29b99a
AK		 9277static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9278 struct cfg80211_registered_device *rdev)
9279{
9280 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9281 int i, j, pat_len;
9282 struct cfg80211_coalesce_rules *rule;
9283
9284 if (!rdev->coalesce->n_rules)
9285 return 0;
9286
9287 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9288 if (!nl_rules)
9289 return -ENOBUFS;
9290
9291 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9292 nl_rule = nla_nest_start(msg, i + 1);
9293 if (!nl_rule)
9294 return -ENOBUFS;
9295
9296 rule = &rdev->coalesce->rules[i];
9297 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9298 rule->delay))
9299 return -ENOBUFS;
9300
9301 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9302 rule->condition))
9303 return -ENOBUFS;
9304
9305 nl_pats = nla_nest_start(msg,
9306 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9307 if (!nl_pats)
9308 return -ENOBUFS;
9309
9310 for (j = 0; j < rule->n_patterns; j++) {
9311 nl_pat = nla_nest_start(msg, j + 1);
9312 if (!nl_pat)
9313 return -ENOBUFS;
9314 pat_len = rule->patterns[j].pattern_len;
9315 if (nla_put(msg, NL80211_PKTPAT_MASK,
9316 DIV_ROUND_UP(pat_len, 8),
9317 rule->patterns[j].mask) ||
9318 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9319 rule->patterns[j].pattern) ||
9320 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9321 rule->patterns[j].pkt_offset))
9322 return -ENOBUFS;
9323 nla_nest_end(msg, nl_pat);
9324 }
9325 nla_nest_end(msg, nl_pats);
9326 nla_nest_end(msg, nl_rule);
9327 }
9328 nla_nest_end(msg, nl_rules);
9329
9330 return 0;
9331}
9332
9333static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9334{
9335 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9336 struct sk_buff *msg;
9337 void *hdr;
9338
9339 if (!rdev->wiphy.coalesce)
9340 return -EOPNOTSUPP;
9341
9342 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9343 if (!msg)
9344 return -ENOMEM;
9345
9346 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9347 NL80211_CMD_GET_COALESCE);
9348 if (!hdr)
9349 goto nla_put_failure;
9350
9351 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9352 goto nla_put_failure;
9353
9354 genlmsg_end(msg, hdr);
9355 return genlmsg_reply(msg, info);
9356
9357nla_put_failure:
9358 nlmsg_free(msg);
9359 return -ENOBUFS;
9360}
9361
9362void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9363{
9364 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9365 int i, j;
9366 struct cfg80211_coalesce_rules *rule;
9367
9368 if (!coalesce)
9369 return;
9370
9371 for (i = 0; i < coalesce->n_rules; i++) {
9372 rule = &coalesce->rules[i];
9373 for (j = 0; j < rule->n_patterns; j++)
9374 kfree(rule->patterns[j].mask);
9375 kfree(rule->patterns);
9376 }
9377 kfree(coalesce->rules);
9378 kfree(coalesce);
9379 rdev->coalesce = NULL;
9380}
9381
9382static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9383 struct nlattr *rule,
9384 struct cfg80211_coalesce_rules *new_rule)
9385{
9386 int err, i;
9387 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9388 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9389 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9390 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9391
9392 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9393 nla_len(rule), nl80211_coalesce_policy);
9394 if (err)
9395 return err;
9396
9397 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9398 new_rule->delay =
9399 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9400 if (new_rule->delay > coalesce->max_delay)
9401 return -EINVAL;
9402
9403 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9404 new_rule->condition =
9405 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9406 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9407 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9408 return -EINVAL;
9409
9410 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9411 return -EINVAL;
9412
9413 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9414 rem)
9415 n_patterns++;
9416 if (n_patterns > coalesce->n_patterns)
9417 return -EINVAL;
9418
9419 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9420 GFP_KERNEL);
9421 if (!new_rule->patterns)
9422 return -ENOMEM;
9423
9424 new_rule->n_patterns = n_patterns;
9425 i = 0;
9426
9427 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9428 rem) {
922bd80f
JB		 9429 u8 *mask_pat;
9430
be29b99a
AK		 9431 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9432 nla_len(pat), NULL);
9433 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9434 !pat_tb[NL80211_PKTPAT_PATTERN])
9435 return -EINVAL;
9436 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9437 mask_len = DIV_ROUND_UP(pat_len, 8);
9438 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9439 return -EINVAL;
9440 if (pat_len > coalesce->pattern_max_len ||
9441 pat_len < coalesce->pattern_min_len)
9442 return -EINVAL;
9443
9444 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9445 pkt_offset = 0;
9446 else
9447 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9448 if (pkt_offset > coalesce->max_pkt_offset)
9449 return -EINVAL;
9450 new_rule->patterns[i].pkt_offset = pkt_offset;
9451
922bd80f
JB		 9452 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9453 if (!mask_pat)
be29b99a 9454 return -ENOMEM;
922bd80f
JB		 9455
9456 new_rule->patterns[i].mask = mask_pat;
9457 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9458 mask_len);
9459
9460 mask_pat += mask_len;
9461 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9462 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9463 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9464 pat_len);
be29b99a
AK		 9465 i++;
9466 }
9467
9468 return 0;
9469}
9470
9471static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9472{
9473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9474 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9475 struct cfg80211_coalesce new_coalesce = {};
9476 struct cfg80211_coalesce *n_coalesce;
9477 int err, rem_rule, n_rules = 0, i, j;
9478 struct nlattr *rule;
9479 struct cfg80211_coalesce_rules *tmp_rule;
9480
9481 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9482 return -EOPNOTSUPP;
9483
9484 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9485 cfg80211_rdev_free_coalesce(rdev);
9486 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9487 return 0;
9488 }
9489
9490 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9491 rem_rule)
9492 n_rules++;
9493 if (n_rules > coalesce->n_rules)
9494 return -EINVAL;
9495
9496 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9497 GFP_KERNEL);
9498 if (!new_coalesce.rules)
9499 return -ENOMEM;
9500
9501 new_coalesce.n_rules = n_rules;
9502 i = 0;
9503
9504 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9505 rem_rule) {
9506 err = nl80211_parse_coalesce_rule(rdev, rule,
9507 &new_coalesce.rules[i]);
9508 if (err)
9509 goto error;
9510
9511 i++;
9512 }
9513
9514 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9515 if (err)
9516 goto error;
9517
9518 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9519 if (!n_coalesce) {
9520 err = -ENOMEM;
9521 goto error;
9522 }
9523 cfg80211_rdev_free_coalesce(rdev);
9524 rdev->coalesce = n_coalesce;
9525
9526 return 0;
9527error:
9528 for (i = 0; i < new_coalesce.n_rules; i++) {
9529 tmp_rule = &new_coalesce.rules[i];
9530 for (j = 0; j < tmp_rule->n_patterns; j++)
9531 kfree(tmp_rule->patterns[j].mask);
9532 kfree(tmp_rule->patterns);
9533 }
9534 kfree(new_coalesce.rules);
9535
9536 return err;
9537}
9538
e5497d76
JB		 9539static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9540{
9541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9542 struct net_device *dev = info->user_ptr[1];
9543 struct wireless_dev *wdev = dev->ieee80211_ptr;
9544 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9545 struct cfg80211_gtk_rekey_data rekey_data;
9546 int err;
9547
9548 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9549 return -EINVAL;
9550
9551 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9552 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9553 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9554 nl80211_rekey_policy);
9555 if (err)
9556 return err;
9557
9558 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9559 return -ERANGE;
9560 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9561 return -ERANGE;
9562 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9563 return -ERANGE;
9564
78f686ca
JB		 9565 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9566 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9567 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9568
9569 wdev_lock(wdev);
9570 if (!wdev->current_bss) {
9571 err = -ENOTCONN;
9572 goto out;
9573 }
9574
9575 if (!rdev->ops->set_rekey_data) {
9576 err = -EOPNOTSUPP;
9577 goto out;
9578 }
9579
e35e4d28 9580 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9581 out:
9582 wdev_unlock(wdev);
9583 return err;
9584}
9585
28946da7
JB		 9586static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9587 struct genl_info *info)
9588{
9589 struct net_device *dev = info->user_ptr[1];
9590 struct wireless_dev *wdev = dev->ieee80211_ptr;
9591
9592 if (wdev->iftype != NL80211_IFTYPE_AP &&
9593 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9594 return -EINVAL;
9595
15e47304 9596 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9597 return -EBUSY;
9598
15e47304 9599 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9600 return 0;
9601}
9602
7f6cf311
JB		 9603static int nl80211_probe_client(struct sk_buff *skb,
9604 struct genl_info *info)
9605{
9606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9607 struct net_device *dev = info->user_ptr[1];
9608 struct wireless_dev *wdev = dev->ieee80211_ptr;
9609 struct sk_buff *msg;
9610 void *hdr;
9611 const u8 *addr;
9612 u64 cookie;
9613 int err;
9614
9615 if (wdev->iftype != NL80211_IFTYPE_AP &&
9616 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9617 return -EOPNOTSUPP;
9618
9619 if (!info->attrs[NL80211_ATTR_MAC])
9620 return -EINVAL;
9621
9622 if (!rdev->ops->probe_client)
9623 return -EOPNOTSUPP;
9624
9625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9626 if (!msg)
9627 return -ENOMEM;
9628
15e47304 9629 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9630 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9631 if (!hdr) {
9632 err = -ENOBUFS;
7f6cf311
JB		 9633 goto free_msg;
9634 }
9635
9636 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9637
e35e4d28 9638 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9639 if (err)
9640 goto free_msg;
9641
9360ffd1
DM		 9642 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9643 goto nla_put_failure;
7f6cf311
JB		 9644
9645 genlmsg_end(msg, hdr);
9646
9647 return genlmsg_reply(msg, info);
9648
9649 nla_put_failure:
9650 err = -ENOBUFS;
9651 free_msg:
9652 nlmsg_free(msg);
9653 return err;
9654}
9655
5e760230
JB		 9656static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9657{
9658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9659 struct cfg80211_beacon_registration *reg, *nreg;
9660 int rv;
5e760230
JB		 9661
9662 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9663 return -EOPNOTSUPP;
9664
37c73b5f
BG		 9665 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9666 if (!nreg)
9667 return -ENOMEM;
9668
9669 /* First, check if already registered. */
9670 spin_lock_bh(&rdev->beacon_registrations_lock);
9671 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9672 if (reg->nlportid == info->snd_portid) {
9673 rv = -EALREADY;
9674 goto out_err;
9675 }
9676 }
9677 /* Add it to the list */
9678 nreg->nlportid = info->snd_portid;
9679 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9680
37c73b5f 9681 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9682
9683 return 0;
37c73b5f
BG		 9684out_err:
9685 spin_unlock_bh(&rdev->beacon_registrations_lock);
9686 kfree(nreg);
9687 return rv;
5e760230
JB		 9688}
9689
98104fde
JB		 9690static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9691{
9692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9693 struct wireless_dev *wdev = info->user_ptr[1];
9694 int err;
9695
9696 if (!rdev->ops->start_p2p_device)
9697 return -EOPNOTSUPP;
9698
9699 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9700 return -EOPNOTSUPP;
9701
9702 if (wdev->p2p_started)
9703 return 0;
9704
b6a55015
LC		 9705 if (rfkill_blocked(rdev->rfkill))
9706 return -ERFKILL;
98104fde 9707
eeb126e9 9708 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9709 if (err)
9710 return err;
9711
9712 wdev->p2p_started = true;
98104fde 9713 rdev->opencount++;
98104fde
JB		 9714
9715 return 0;
9716}
9717
9718static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9719{
9720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9721 struct wireless_dev *wdev = info->user_ptr[1];
9722
9723 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9724 return -EOPNOTSUPP;
9725
9726 if (!rdev->ops->stop_p2p_device)
9727 return -EOPNOTSUPP;
9728
f9f47529 9729 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9730
9731 return 0;
9732}
9733
3713b4e3
JB		 9734static int nl80211_get_protocol_features(struct sk_buff *skb,
9735 struct genl_info *info)
9736{
9737 void *hdr;
9738 struct sk_buff *msg;
9739
9740 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9741 if (!msg)
9742 return -ENOMEM;
9743
9744 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9745 NL80211_CMD_GET_PROTOCOL_FEATURES);
9746 if (!hdr)
9747 goto nla_put_failure;
9748
9749 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9750 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9751 goto nla_put_failure;
9752
9753 genlmsg_end(msg, hdr);
9754 return genlmsg_reply(msg, info);
9755
9756 nla_put_failure:
9757 kfree_skb(msg);
9758 return -ENOBUFS;
9759}
9760
355199e0
JM		 9761static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9762{
9763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9764 struct cfg80211_update_ft_ies_params ft_params;
9765 struct net_device *dev = info->user_ptr[1];
9766
9767 if (!rdev->ops->update_ft_ies)
9768 return -EOPNOTSUPP;
9769
9770 if (!info->attrs[NL80211_ATTR_MDID] ||
9771 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9772 return -EINVAL;
9773
9774 memset(&ft_params, 0, sizeof(ft_params));
9775 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9776 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9777 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9778
9779 return rdev_update_ft_ies(rdev, dev, &ft_params);
9780}
9781
5de17984
AS		 9782static int nl80211_crit_protocol_start(struct sk_buff *skb,
9783 struct genl_info *info)
9784{
9785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9786 struct wireless_dev *wdev = info->user_ptr[1];
9787 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9788 u16 duration;
9789 int ret;
9790
9791 if (!rdev->ops->crit_proto_start)
9792 return -EOPNOTSUPP;
9793
9794 if (WARN_ON(!rdev->ops->crit_proto_stop))
9795 return -EINVAL;
9796
9797 if (rdev->crit_proto_nlportid)
9798 return -EBUSY;
9799
9800 /* determine protocol if provided */
9801 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9802 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9803
9804 if (proto >= NUM_NL80211_CRIT_PROTO)
9805 return -EINVAL;
9806
9807 /* timeout must be provided */
9808 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9809 return -EINVAL;
9810
9811 duration =
9812 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9813
9814 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9815 return -ERANGE;
9816
9817 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9818 if (!ret)
9819 rdev->crit_proto_nlportid = info->snd_portid;
9820
9821 return ret;
9822}
9823
9824static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9825 struct genl_info *info)
9826{
9827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9828 struct wireless_dev *wdev = info->user_ptr[1];
9829
9830 if (!rdev->ops->crit_proto_stop)
9831 return -EOPNOTSUPP;
9832
9833 if (rdev->crit_proto_nlportid) {
9834 rdev->crit_proto_nlportid = 0;
9835 rdev_crit_proto_stop(rdev, wdev);
9836 }
9837 return 0;
9838}
9839
ad7e718c
JB		 9840static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9841{
9842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9843 struct wireless_dev *wdev =
9844 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9845 int i, err;
9846 u32 vid, subcmd;
9847
9848 if (!rdev->wiphy.vendor_commands)
9849 return -EOPNOTSUPP;
9850
9851 if (IS_ERR(wdev)) {
9852 err = PTR_ERR(wdev);
9853 if (err != -EINVAL)
9854 return err;
9855 wdev = NULL;
9856 } else if (wdev->wiphy != &rdev->wiphy) {
9857 return -EINVAL;
9858 }
9859
9860 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9861 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9862 return -EINVAL;
9863
9864 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9865 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9866 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9867 const struct wiphy_vendor_command *vcmd;
9868 void *data = NULL;
9869 int len = 0;
9870
9871 vcmd = &rdev->wiphy.vendor_commands[i];
9872
9873 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9874 continue;
9875
9876 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9877 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9878 if (!wdev)
9879 return -EINVAL;
9880 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9881 !wdev->netdev)
9882 return -EINVAL;
9883
9884 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9885 if (wdev->netdev &&
9886 !netif_running(wdev->netdev))
9887 return -ENETDOWN;
9888 if (!wdev->netdev && !wdev->p2p_started)
9889 return -ENETDOWN;
9890 }
9891 } else {
9892 wdev = NULL;
9893 }
9894
9895 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9896 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9897 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9898 }
9899
9900 rdev->cur_cmd_info = info;
9901 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9902 data, len);
9903 rdev->cur_cmd_info = NULL;
9904 return err;
9905 }
9906
9907 return -EOPNOTSUPP;
9908}
9909
9910struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9911 enum nl80211_commands cmd,
9912 enum nl80211_attrs attr,
9913 int approxlen)
9914{
f26cbf40 9915 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9916
9917 if (WARN_ON(!rdev->cur_cmd_info))
9918 return NULL;
9919
6c09e791 9920 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
ad7e718c
JB		 9921 rdev->cur_cmd_info->snd_portid,
9922 rdev->cur_cmd_info->snd_seq,
567ffc35 9923 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9924}
9925EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9926
9927int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9928{
9929 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9930 void *hdr = ((void **)skb->cb)[1];
9931 struct nlattr *data = ((void **)skb->cb)[2];
9932
bd8c78e7
JB		 9933 /* clear CB data for netlink core to own from now on */
9934 memset(skb->cb, 0, sizeof(skb->cb));
9935
ad7e718c
JB		 9936 if (WARN_ON(!rdev->cur_cmd_info)) {
9937 kfree_skb(skb);
9938 return -EINVAL;
9939 }
9940
9941 nla_nest_end(skb, data);
9942 genlmsg_end(skb, hdr);
9943 return genlmsg_reply(skb, rdev->cur_cmd_info);
9944}
9945EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9946
9947
fa9ffc74
KP		 9948static int nl80211_set_qos_map(struct sk_buff *skb,
9949 struct genl_info *info)
9950{
9951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9952 struct cfg80211_qos_map *qos_map = NULL;
9953 struct net_device *dev = info->user_ptr[1];
9954 u8 *pos, len, num_des, des_len, des;
9955 int ret;
9956
9957 if (!rdev->ops->set_qos_map)
9958 return -EOPNOTSUPP;
9959
9960 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9961 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9962 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9963
9964 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9965 len > IEEE80211_QOS_MAP_LEN_MAX)
9966 return -EINVAL;
9967
9968 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9969 if (!qos_map)
9970 return -ENOMEM;
9971
9972 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9973 if (num_des) {
9974 des_len = num_des *
9975 sizeof(struct cfg80211_dscp_exception);
9976 memcpy(qos_map->dscp_exception, pos, des_len);
9977 qos_map->num_des = num_des;
9978 for (des = 0; des < num_des; des++) {
9979 if (qos_map->dscp_exception[des].up > 7) {
9980 kfree(qos_map);
9981 return -EINVAL;
9982 }
9983 }
9984 pos += des_len;
9985 }
9986 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9987 }
9988
9989 wdev_lock(dev->ieee80211_ptr);
9990 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9991 if (!ret)
9992 ret = rdev_set_qos_map(rdev, dev, qos_map);
9993 wdev_unlock(dev->ieee80211_ptr);
9994
9995 kfree(qos_map);
9996 return ret;
9997}
9998
960d01ac
JB		 9999static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10000{
10001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10002 struct net_device *dev = info->user_ptr[1];
10003 struct wireless_dev *wdev = dev->ieee80211_ptr;
10004 const u8 *peer;
10005 u8 tsid, up;
10006 u16 admitted_time = 0;
10007 int err;
10008
723e73ac 10009 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 10010 return -EOPNOTSUPP;
10011
10012 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10013 !info->attrs[NL80211_ATTR_USER_PRIO])
10014 return -EINVAL;
10015
10016 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10017 if (tsid >= IEEE80211_NUM_TIDS)
10018 return -EINVAL;
10019
10020 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10021 if (up >= IEEE80211_NUM_UPS)
10022 return -EINVAL;
10023
10024 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 10025 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 10026 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 10027 * need more attributes for that (e.g. BA session requirement);
10028 * change the WMM adminssion test above to allow both then
960d01ac
JB		 10029 */
10030 return -EINVAL;
10031 }
10032
10033 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10034
10035 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10036 admitted_time =
10037 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10038 if (!admitted_time)
10039 return -EINVAL;
10040 }
10041
10042 wdev_lock(wdev);
10043 switch (wdev->iftype) {
10044 case NL80211_IFTYPE_STATION:
10045 case NL80211_IFTYPE_P2P_CLIENT:
10046 if (wdev->current_bss)
10047 break;
10048 err = -ENOTCONN;
10049 goto out;
10050 default:
10051 err = -EOPNOTSUPP;
10052 goto out;
10053 }
10054
10055 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10056
10057 out:
10058 wdev_unlock(wdev);
10059 return err;
10060}
10061
10062static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10063{
10064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10065 struct net_device *dev = info->user_ptr[1];
10066 struct wireless_dev *wdev = dev->ieee80211_ptr;
10067 const u8 *peer;
10068 u8 tsid;
10069 int err;
10070
10071 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10072 return -EINVAL;
10073
10074 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10075 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10076
10077 wdev_lock(wdev);
10078 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10079 wdev_unlock(wdev);
10080
10081 return err;
10082}
10083
1057d35e
AN		 10084static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10085 struct genl_info *info)
10086{
10087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10088 struct net_device *dev = info->user_ptr[1];
10089 struct wireless_dev *wdev = dev->ieee80211_ptr;
10090 struct cfg80211_chan_def chandef = {};
10091 const u8 *addr;
10092 u8 oper_class;
10093 int err;
10094
10095 if (!rdev->ops->tdls_channel_switch ||
10096 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10097 return -EOPNOTSUPP;
10098
10099 switch (dev->ieee80211_ptr->iftype) {
10100 case NL80211_IFTYPE_STATION:
10101 case NL80211_IFTYPE_P2P_CLIENT:
10102 break;
10103 default:
10104 return -EOPNOTSUPP;
10105 }
10106
10107 if (!info->attrs[NL80211_ATTR_MAC] ||
10108 !info->attrs[NL80211_ATTR_OPER_CLASS])
10109 return -EINVAL;
10110
10111 err = nl80211_parse_chandef(rdev, info, &chandef);
10112 if (err)
10113 return err;
10114
10115 /*
10116 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10117 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10118 * specification is not defined for them.
10119 */
10120 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10121 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10122 chandef.width != NL80211_CHAN_WIDTH_20)
10123 return -EINVAL;
10124
10125 /* we will be active on the TDLS link */
10126 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10127 return -EINVAL;
10128
10129 /* don't allow switching to DFS channels */
10130 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10131 return -EINVAL;
10132
10133 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10134 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10135
10136 wdev_lock(wdev);
10137 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10138 wdev_unlock(wdev);
10139
10140 return err;
10141}
10142
10143static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10144 struct genl_info *info)
10145{
10146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10147 struct net_device *dev = info->user_ptr[1];
10148 struct wireless_dev *wdev = dev->ieee80211_ptr;
10149 const u8 *addr;
10150
10151 if (!rdev->ops->tdls_channel_switch ||
10152 !rdev->ops->tdls_cancel_channel_switch ||
10153 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10154 return -EOPNOTSUPP;
10155
10156 switch (dev->ieee80211_ptr->iftype) {
10157 case NL80211_IFTYPE_STATION:
10158 case NL80211_IFTYPE_P2P_CLIENT:
10159 break;
10160 default:
10161 return -EOPNOTSUPP;
10162 }
10163
10164 if (!info->attrs[NL80211_ATTR_MAC])
10165 return -EINVAL;
10166
10167 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10168
10169 wdev_lock(wdev);
10170 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10171 wdev_unlock(wdev);
10172
10173 return 0;
10174}
10175
4c476991
JB		 10176#define NL80211_FLAG_NEED_WIPHY 0x01
10177#define NL80211_FLAG_NEED_NETDEV 0x02
10178#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10179#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10180#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10181 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10182#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10183/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10184#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10185 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10186#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10187
f84f771d 10188static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10189 struct genl_info *info)
10190{
10191 struct cfg80211_registered_device *rdev;
89a54e48 10192 struct wireless_dev *wdev;
4c476991 10193 struct net_device *dev;
4c476991
JB		 10194 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10195
10196 if (rtnl)
10197 rtnl_lock();
10198
10199 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10200 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10201 if (IS_ERR(rdev)) {
10202 if (rtnl)
10203 rtnl_unlock();
10204 return PTR_ERR(rdev);
10205 }
10206 info->user_ptr[0] = rdev;
1bf614ef
JB		 10207 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10208 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10209 ASSERT_RTNL();
10210
89a54e48
JB		 10211 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10212 info->attrs);
10213 if (IS_ERR(wdev)) {
4c476991
JB		 10214 if (rtnl)
10215 rtnl_unlock();
89a54e48 10216 return PTR_ERR(wdev);
4c476991 10217 }
89a54e48 10218
89a54e48 10219 dev = wdev->netdev;
f26cbf40 10220 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10221
1bf614ef
JB		 10222 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10223 if (!dev) {
1bf614ef
JB		 10224 if (rtnl)
10225 rtnl_unlock();
10226 return -EINVAL;
10227 }
10228
10229 info->user_ptr[1] = dev;
10230 } else {
10231 info->user_ptr[1] = wdev;
41265714 10232 }
1bf614ef
JB		 10233
10234 if (dev) {
10235 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10236 !netif_running(dev)) {
1bf614ef
JB		 10237 if (rtnl)
10238 rtnl_unlock();
10239 return -ENETDOWN;
10240 }
10241
10242 dev_hold(dev);
98104fde
JB		 10243 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10244 if (!wdev->p2p_started) {
98104fde
JB		 10245 if (rtnl)
10246 rtnl_unlock();
10247 return -ENETDOWN;
10248 }
41265714 10249 }
89a54e48 10250
4c476991 10251 info->user_ptr[0] = rdev;
4c476991
JB		 10252 }
10253
10254 return 0;
10255}
10256
f84f771d 10257static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10258 struct genl_info *info)
10259{
1bf614ef
JB		 10260 if (info->user_ptr[1]) {
10261 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10262 struct wireless_dev *wdev = info->user_ptr[1];
10263
10264 if (wdev->netdev)
10265 dev_put(wdev->netdev);
10266 } else {
10267 dev_put(info->user_ptr[1]);
10268 }
10269 }
5393b917 10270
4c476991
JB		 10271 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10272 rtnl_unlock();
5393b917
JB		 10273
10274 /* If needed, clear the netlink message payload from the SKB
10275 * as it might contain key data that shouldn't stick around on
10276 * the heap after the SKB is freed. The netlink message header
10277 * is still needed for further processing, so leave it intact.
10278 */
10279 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10280 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10281
10282 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10283 }
4c476991
JB		 10284}
10285
4534de83 10286static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10287 {
10288 .cmd = NL80211_CMD_GET_WIPHY,
10289 .doit = nl80211_get_wiphy,
10290 .dumpit = nl80211_dump_wiphy,
86e8cf98 10291 .done = nl80211_dump_wiphy_done,
55682965
JB		 10292 .policy = nl80211_policy,
10293 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10294 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10295 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10296 },
10297 {
10298 .cmd = NL80211_CMD_SET_WIPHY,
10299 .doit = nl80211_set_wiphy,
10300 .policy = nl80211_policy,
10301 .flags = GENL_ADMIN_PERM,
4c476991 10302 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10303 },
10304 {
10305 .cmd = NL80211_CMD_GET_INTERFACE,
10306 .doit = nl80211_get_interface,
10307 .dumpit = nl80211_dump_interface,
10308 .policy = nl80211_policy,
10309 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10310 .internal_flags = NL80211_FLAG_NEED_WDEV |
10311 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10312 },
10313 {
10314 .cmd = NL80211_CMD_SET_INTERFACE,
10315 .doit = nl80211_set_interface,
10316 .policy = nl80211_policy,
10317 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10318 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10319 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10320 },
10321 {
10322 .cmd = NL80211_CMD_NEW_INTERFACE,
10323 .doit = nl80211_new_interface,
10324 .policy = nl80211_policy,
10325 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10326 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10327 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10328 },
10329 {
10330 .cmd = NL80211_CMD_DEL_INTERFACE,
10331 .doit = nl80211_del_interface,
10332 .policy = nl80211_policy,
41ade00f 10333 .flags = GENL_ADMIN_PERM,
84efbb84 10334 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10335 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10336 },
10337 {
10338 .cmd = NL80211_CMD_GET_KEY,
10339 .doit = nl80211_get_key,
10340 .policy = nl80211_policy,
10341 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10343 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10344 },
10345 {
10346 .cmd = NL80211_CMD_SET_KEY,
10347 .doit = nl80211_set_key,
10348 .policy = nl80211_policy,
10349 .flags = GENL_ADMIN_PERM,
41265714 10350 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10351 NL80211_FLAG_NEED_RTNL |
10352 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10353 },
10354 {
10355 .cmd = NL80211_CMD_NEW_KEY,
10356 .doit = nl80211_new_key,
10357 .policy = nl80211_policy,
10358 .flags = GENL_ADMIN_PERM,
41265714 10359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10360 NL80211_FLAG_NEED_RTNL |
10361 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10362 },
10363 {
10364 .cmd = NL80211_CMD_DEL_KEY,
10365 .doit = nl80211_del_key,
10366 .policy = nl80211_policy,
55682965 10367 .flags = GENL_ADMIN_PERM,
41265714 10368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10369 NL80211_FLAG_NEED_RTNL,
55682965 10370 },
ed1b6cc7
JB		 10371 {
10372 .cmd = NL80211_CMD_SET_BEACON,
10373 .policy = nl80211_policy,
10374 .flags = GENL_ADMIN_PERM,
8860020e 10375 .doit = nl80211_set_beacon,
2b5f8b0b 10376 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10377 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10378 },
10379 {
8860020e 10380 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10381 .policy = nl80211_policy,
10382 .flags = GENL_ADMIN_PERM,
8860020e 10383 .doit = nl80211_start_ap,
2b5f8b0b 10384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10385 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10386 },
10387 {
8860020e 10388 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10389 .policy = nl80211_policy,
10390 .flags = GENL_ADMIN_PERM,
8860020e 10391 .doit = nl80211_stop_ap,
2b5f8b0b 10392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10393 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10394 },
5727ef1b
JB		 10395 {
10396 .cmd = NL80211_CMD_GET_STATION,
10397 .doit = nl80211_get_station,
2ec600d6 10398 .dumpit = nl80211_dump_station,
5727ef1b 10399 .policy = nl80211_policy,
4c476991
JB		 10400 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10401 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10402 },
10403 {
10404 .cmd = NL80211_CMD_SET_STATION,
10405 .doit = nl80211_set_station,
10406 .policy = nl80211_policy,
10407 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10409 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10410 },
10411 {
10412 .cmd = NL80211_CMD_NEW_STATION,
10413 .doit = nl80211_new_station,
10414 .policy = nl80211_policy,
10415 .flags = GENL_ADMIN_PERM,
41265714 10416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10417 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10418 },
10419 {
10420 .cmd = NL80211_CMD_DEL_STATION,
10421 .doit = nl80211_del_station,
10422 .policy = nl80211_policy,
2ec600d6 10423 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10425 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10426 },
10427 {
10428 .cmd = NL80211_CMD_GET_MPATH,
10429 .doit = nl80211_get_mpath,
10430 .dumpit = nl80211_dump_mpath,
10431 .policy = nl80211_policy,
10432 .flags = GENL_ADMIN_PERM,
41265714 10433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10434 NL80211_FLAG_NEED_RTNL,
2ec600d6 10435 },
66be7d2b
HR		 10436 {
10437 .cmd = NL80211_CMD_GET_MPP,
10438 .doit = nl80211_get_mpp,
10439 .dumpit = nl80211_dump_mpp,
10440 .policy = nl80211_policy,
10441 .flags = GENL_ADMIN_PERM,
10442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10443 NL80211_FLAG_NEED_RTNL,
10444 },
2ec600d6
LCC		 10445 {
10446 .cmd = NL80211_CMD_SET_MPATH,
10447 .doit = nl80211_set_mpath,
10448 .policy = nl80211_policy,
10449 .flags = GENL_ADMIN_PERM,
41265714 10450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10451 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10452 },
10453 {
10454 .cmd = NL80211_CMD_NEW_MPATH,
10455 .doit = nl80211_new_mpath,
10456 .policy = nl80211_policy,
10457 .flags = GENL_ADMIN_PERM,
41265714 10458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10459 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10460 },
10461 {
10462 .cmd = NL80211_CMD_DEL_MPATH,
10463 .doit = nl80211_del_mpath,
10464 .policy = nl80211_policy,
9f1ba906 10465 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10467 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10468 },
10469 {
10470 .cmd = NL80211_CMD_SET_BSS,
10471 .doit = nl80211_set_bss,
10472 .policy = nl80211_policy,
b2e1b302 10473 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10474 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10475 NL80211_FLAG_NEED_RTNL,
b2e1b302 10476 },
f130347c
LR		 10477 {
10478 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10479 .doit = nl80211_get_reg_do,
10480 .dumpit = nl80211_get_reg_dump,
f130347c 10481 .policy = nl80211_policy,
5fe231e8 10482 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10483 /* can be retrieved by unprivileged users */
10484 },
b2e1b302
LR		 10485 {
10486 .cmd = NL80211_CMD_SET_REG,
10487 .doit = nl80211_set_reg,
10488 .policy = nl80211_policy,
10489 .flags = GENL_ADMIN_PERM,
5fe231e8 10490 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10491 },
10492 {
10493 .cmd = NL80211_CMD_REQ_SET_REG,
10494 .doit = nl80211_req_set_reg,
10495 .policy = nl80211_policy,
93da9cc1 10496 .flags = GENL_ADMIN_PERM,
10497 },
10498 {
24bdd9f4
JC		 10499 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10500 .doit = nl80211_get_mesh_config,
93da9cc1 10501 .policy = nl80211_policy,
10502 /* can be retrieved by unprivileged users */
2b5f8b0b 10503 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10504 NL80211_FLAG_NEED_RTNL,
93da9cc1 10505 },
10506 {
24bdd9f4
JC		 10507 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10508 .doit = nl80211_update_mesh_config,
93da9cc1 10509 .policy = nl80211_policy,
9aed3cc1 10510 .flags = GENL_ADMIN_PERM,
29cbe68c 10511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10512 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10513 },
2a519311
JB		 10514 {
10515 .cmd = NL80211_CMD_TRIGGER_SCAN,
10516 .doit = nl80211_trigger_scan,
10517 .policy = nl80211_policy,
10518 .flags = GENL_ADMIN_PERM,
fd014284 10519 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10520 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10521 },
10522 {
10523 .cmd = NL80211_CMD_GET_SCAN,
10524 .policy = nl80211_policy,
10525 .dumpit = nl80211_dump_scan,
10526 },
807f8a8c
LC		 10527 {
10528 .cmd = NL80211_CMD_START_SCHED_SCAN,
10529 .doit = nl80211_start_sched_scan,
10530 .policy = nl80211_policy,
10531 .flags = GENL_ADMIN_PERM,
10532 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10533 NL80211_FLAG_NEED_RTNL,
10534 },
10535 {
10536 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10537 .doit = nl80211_stop_sched_scan,
10538 .policy = nl80211_policy,
10539 .flags = GENL_ADMIN_PERM,
10540 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10541 NL80211_FLAG_NEED_RTNL,
10542 },
636a5d36
JM		 10543 {
10544 .cmd = NL80211_CMD_AUTHENTICATE,
10545 .doit = nl80211_authenticate,
10546 .policy = nl80211_policy,
10547 .flags = GENL_ADMIN_PERM,
41265714 10548 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10549 NL80211_FLAG_NEED_RTNL |
10550 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10551 },
10552 {
10553 .cmd = NL80211_CMD_ASSOCIATE,
10554 .doit = nl80211_associate,
10555 .policy = nl80211_policy,
10556 .flags = GENL_ADMIN_PERM,
41265714 10557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10558 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10559 },
10560 {
10561 .cmd = NL80211_CMD_DEAUTHENTICATE,
10562 .doit = nl80211_deauthenticate,
10563 .policy = nl80211_policy,
10564 .flags = GENL_ADMIN_PERM,
41265714 10565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10566 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10567 },
10568 {
10569 .cmd = NL80211_CMD_DISASSOCIATE,
10570 .doit = nl80211_disassociate,
10571 .policy = nl80211_policy,
10572 .flags = GENL_ADMIN_PERM,
41265714 10573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10574 NL80211_FLAG_NEED_RTNL,
636a5d36 10575 },
04a773ad
JB		 10576 {
10577 .cmd = NL80211_CMD_JOIN_IBSS,
10578 .doit = nl80211_join_ibss,
10579 .policy = nl80211_policy,
10580 .flags = GENL_ADMIN_PERM,
41265714 10581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10582 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10583 },
10584 {
10585 .cmd = NL80211_CMD_LEAVE_IBSS,
10586 .doit = nl80211_leave_ibss,
10587 .policy = nl80211_policy,
10588 .flags = GENL_ADMIN_PERM,
41265714 10589 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10590 NL80211_FLAG_NEED_RTNL,
04a773ad 10591 },
aff89a9b
JB		 10592#ifdef CONFIG_NL80211_TESTMODE
10593 {
10594 .cmd = NL80211_CMD_TESTMODE,
10595 .doit = nl80211_testmode_do,
71063f0e 10596 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10597 .policy = nl80211_policy,
10598 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10599 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10600 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10601 },
10602#endif
b23aa676
SO		 10603 {
10604 .cmd = NL80211_CMD_CONNECT,
10605 .doit = nl80211_connect,
10606 .policy = nl80211_policy,
10607 .flags = GENL_ADMIN_PERM,
41265714 10608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10609 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10610 },
10611 {
10612 .cmd = NL80211_CMD_DISCONNECT,
10613 .doit = nl80211_disconnect,
10614 .policy = nl80211_policy,
10615 .flags = GENL_ADMIN_PERM,
41265714 10616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10617 NL80211_FLAG_NEED_RTNL,
b23aa676 10618 },
463d0183
JB		 10619 {
10620 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10621 .doit = nl80211_wiphy_netns,
10622 .policy = nl80211_policy,
10623 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10624 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10625 NL80211_FLAG_NEED_RTNL,
463d0183 10626 },
61fa713c
HS		 10627 {
10628 .cmd = NL80211_CMD_GET_SURVEY,
10629 .policy = nl80211_policy,
10630 .dumpit = nl80211_dump_survey,
10631 },
67fbb16b
SO		 10632 {
10633 .cmd = NL80211_CMD_SET_PMKSA,
10634 .doit = nl80211_setdel_pmksa,
10635 .policy = nl80211_policy,
10636 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10637 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10638 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10639 },
10640 {
10641 .cmd = NL80211_CMD_DEL_PMKSA,
10642 .doit = nl80211_setdel_pmksa,
10643 .policy = nl80211_policy,
10644 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10645 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10646 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10647 },
10648 {
10649 .cmd = NL80211_CMD_FLUSH_PMKSA,
10650 .doit = nl80211_flush_pmksa,
10651 .policy = nl80211_policy,
10652 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10654 NL80211_FLAG_NEED_RTNL,
67fbb16b 10655 },
9588bbd5
JM		 10656 {
10657 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10658 .doit = nl80211_remain_on_channel,
10659 .policy = nl80211_policy,
10660 .flags = GENL_ADMIN_PERM,
71bbc994 10661 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10662 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10663 },
10664 {
10665 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10666 .doit = nl80211_cancel_remain_on_channel,
10667 .policy = nl80211_policy,
10668 .flags = GENL_ADMIN_PERM,
71bbc994 10669 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10670 NL80211_FLAG_NEED_RTNL,
9588bbd5 10671 },
13ae75b1
JM		 10672 {
10673 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10674 .doit = nl80211_set_tx_bitrate_mask,
10675 .policy = nl80211_policy,
10676 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10677 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10678 NL80211_FLAG_NEED_RTNL,
13ae75b1 10679 },
026331c4 10680 {
2e161f78
JB		 10681 .cmd = NL80211_CMD_REGISTER_FRAME,
10682 .doit = nl80211_register_mgmt,
026331c4
JM		 10683 .policy = nl80211_policy,
10684 .flags = GENL_ADMIN_PERM,
71bbc994 10685 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10686 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10687 },
10688 {
2e161f78
JB		 10689 .cmd = NL80211_CMD_FRAME,
10690 .doit = nl80211_tx_mgmt,
026331c4 10691 .policy = nl80211_policy,
f7ca38df 10692 .flags = GENL_ADMIN_PERM,
71bbc994 10693 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10694 NL80211_FLAG_NEED_RTNL,
10695 },
10696 {
10697 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10698 .doit = nl80211_tx_mgmt_cancel_wait,
10699 .policy = nl80211_policy,
026331c4 10700 .flags = GENL_ADMIN_PERM,
71bbc994 10701 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10702 NL80211_FLAG_NEED_RTNL,
026331c4 10703 },
ffb9eb3d
KV		 10704 {
10705 .cmd = NL80211_CMD_SET_POWER_SAVE,
10706 .doit = nl80211_set_power_save,
10707 .policy = nl80211_policy,
10708 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10709 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10710 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10711 },
10712 {
10713 .cmd = NL80211_CMD_GET_POWER_SAVE,
10714 .doit = nl80211_get_power_save,
10715 .policy = nl80211_policy,
10716 /* can be retrieved by unprivileged users */
4c476991
JB		 10717 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10718 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10719 },
d6dc1a38
JO		 10720 {
10721 .cmd = NL80211_CMD_SET_CQM,
10722 .doit = nl80211_set_cqm,
10723 .policy = nl80211_policy,
10724 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10725 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10726 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10727 },
f444de05
JB		 10728 {
10729 .cmd = NL80211_CMD_SET_CHANNEL,
10730 .doit = nl80211_set_channel,
10731 .policy = nl80211_policy,
10732 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10733 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10734 NL80211_FLAG_NEED_RTNL,
f444de05 10735 },
e8347eba
BJ		 10736 {
10737 .cmd = NL80211_CMD_SET_WDS_PEER,
10738 .doit = nl80211_set_wds_peer,
10739 .policy = nl80211_policy,
10740 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10741 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10742 NL80211_FLAG_NEED_RTNL,
e8347eba 10743 },
29cbe68c
JB		 10744 {
10745 .cmd = NL80211_CMD_JOIN_MESH,
10746 .doit = nl80211_join_mesh,
10747 .policy = nl80211_policy,
10748 .flags = GENL_ADMIN_PERM,
10749 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10750 NL80211_FLAG_NEED_RTNL,
10751 },
10752 {
10753 .cmd = NL80211_CMD_LEAVE_MESH,
10754 .doit = nl80211_leave_mesh,
10755 .policy = nl80211_policy,
10756 .flags = GENL_ADMIN_PERM,
10757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10758 NL80211_FLAG_NEED_RTNL,
10759 },
6e0bd6c3
RL		 10760 {
10761 .cmd = NL80211_CMD_JOIN_OCB,
10762 .doit = nl80211_join_ocb,
10763 .policy = nl80211_policy,
10764 .flags = GENL_ADMIN_PERM,
10765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10766 NL80211_FLAG_NEED_RTNL,
10767 },
10768 {
10769 .cmd = NL80211_CMD_LEAVE_OCB,
10770 .doit = nl80211_leave_ocb,
10771 .policy = nl80211_policy,
10772 .flags = GENL_ADMIN_PERM,
10773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10774 NL80211_FLAG_NEED_RTNL,
10775 },
dfb89c56 10776#ifdef CONFIG_PM
ff1b6e69
JB		 10777 {
10778 .cmd = NL80211_CMD_GET_WOWLAN,
10779 .doit = nl80211_get_wowlan,
10780 .policy = nl80211_policy,
10781 /* can be retrieved by unprivileged users */
10782 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10783 NL80211_FLAG_NEED_RTNL,
10784 },
10785 {
10786 .cmd = NL80211_CMD_SET_WOWLAN,
10787 .doit = nl80211_set_wowlan,
10788 .policy = nl80211_policy,
10789 .flags = GENL_ADMIN_PERM,
10790 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10791 NL80211_FLAG_NEED_RTNL,
10792 },
dfb89c56 10793#endif
e5497d76
JB		 10794 {
10795 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10796 .doit = nl80211_set_rekey_data,
10797 .policy = nl80211_policy,
10798 .flags = GENL_ADMIN_PERM,
10799 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10800 NL80211_FLAG_NEED_RTNL |
10801 NL80211_FLAG_CLEAR_SKB,
e5497d76 10802 },
109086ce
AN		 10803 {
10804 .cmd = NL80211_CMD_TDLS_MGMT,
10805 .doit = nl80211_tdls_mgmt,
10806 .policy = nl80211_policy,
10807 .flags = GENL_ADMIN_PERM,
10808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10809 NL80211_FLAG_NEED_RTNL,
10810 },
10811 {
10812 .cmd = NL80211_CMD_TDLS_OPER,
10813 .doit = nl80211_tdls_oper,
10814 .policy = nl80211_policy,
10815 .flags = GENL_ADMIN_PERM,
10816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10817 NL80211_FLAG_NEED_RTNL,
10818 },
28946da7
JB		 10819 {
10820 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10821 .doit = nl80211_register_unexpected_frame,
10822 .policy = nl80211_policy,
10823 .flags = GENL_ADMIN_PERM,
10824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10825 NL80211_FLAG_NEED_RTNL,
10826 },
7f6cf311
JB		 10827 {
10828 .cmd = NL80211_CMD_PROBE_CLIENT,
10829 .doit = nl80211_probe_client,
10830 .policy = nl80211_policy,
10831 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10833 NL80211_FLAG_NEED_RTNL,
10834 },
5e760230
JB		 10835 {
10836 .cmd = NL80211_CMD_REGISTER_BEACONS,
10837 .doit = nl80211_register_beacons,
10838 .policy = nl80211_policy,
10839 .flags = GENL_ADMIN_PERM,
10840 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10841 NL80211_FLAG_NEED_RTNL,
10842 },
1d9d9213
SW		 10843 {
10844 .cmd = NL80211_CMD_SET_NOACK_MAP,
10845 .doit = nl80211_set_noack_map,
10846 .policy = nl80211_policy,
10847 .flags = GENL_ADMIN_PERM,
10848 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10849 NL80211_FLAG_NEED_RTNL,
10850 },
98104fde
JB		 10851 {
10852 .cmd = NL80211_CMD_START_P2P_DEVICE,
10853 .doit = nl80211_start_p2p_device,
10854 .policy = nl80211_policy,
10855 .flags = GENL_ADMIN_PERM,
10856 .internal_flags = NL80211_FLAG_NEED_WDEV |
10857 NL80211_FLAG_NEED_RTNL,
10858 },
10859 {
10860 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10861 .doit = nl80211_stop_p2p_device,
10862 .policy = nl80211_policy,
10863 .flags = GENL_ADMIN_PERM,
10864 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10865 NL80211_FLAG_NEED_RTNL,
10866 },
f4e583c8
AQ		 10867 {
10868 .cmd = NL80211_CMD_SET_MCAST_RATE,
10869 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10870 .policy = nl80211_policy,
10871 .flags = GENL_ADMIN_PERM,
10872 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10873 NL80211_FLAG_NEED_RTNL,
10874 },
10875 {
10876 .cmd = NL80211_CMD_SET_MAC_ACL,
10877 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10878 .policy = nl80211_policy,
10879 .flags = GENL_ADMIN_PERM,
10880 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10881 NL80211_FLAG_NEED_RTNL,
10882 },
04f39047
SW		 10883 {
10884 .cmd = NL80211_CMD_RADAR_DETECT,
10885 .doit = nl80211_start_radar_detection,
10886 .policy = nl80211_policy,
10887 .flags = GENL_ADMIN_PERM,
10888 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10889 NL80211_FLAG_NEED_RTNL,
10890 },
3713b4e3
JB		 10891 {
10892 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10893 .doit = nl80211_get_protocol_features,
10894 .policy = nl80211_policy,
10895 },
355199e0
JM		 10896 {
10897 .cmd = NL80211_CMD_UPDATE_FT_IES,
10898 .doit = nl80211_update_ft_ies,
10899 .policy = nl80211_policy,
10900 .flags = GENL_ADMIN_PERM,
10901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10902 NL80211_FLAG_NEED_RTNL,
10903 },
5de17984
AS		 10904 {
10905 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10906 .doit = nl80211_crit_protocol_start,
10907 .policy = nl80211_policy,
10908 .flags = GENL_ADMIN_PERM,
10909 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10910 NL80211_FLAG_NEED_RTNL,
10911 },
10912 {
10913 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10914 .doit = nl80211_crit_protocol_stop,
10915 .policy = nl80211_policy,
10916 .flags = GENL_ADMIN_PERM,
10917 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10918 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10919 },
10920 {
10921 .cmd = NL80211_CMD_GET_COALESCE,
10922 .doit = nl80211_get_coalesce,
10923 .policy = nl80211_policy,
10924 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10925 NL80211_FLAG_NEED_RTNL,
10926 },
10927 {
10928 .cmd = NL80211_CMD_SET_COALESCE,
10929 .doit = nl80211_set_coalesce,
10930 .policy = nl80211_policy,
10931 .flags = GENL_ADMIN_PERM,
10932 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10933 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10934 },
10935 {
10936 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10937 .doit = nl80211_channel_switch,
10938 .policy = nl80211_policy,
10939 .flags = GENL_ADMIN_PERM,
10940 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10941 NL80211_FLAG_NEED_RTNL,
10942 },
ad7e718c
JB		 10943 {
10944 .cmd = NL80211_CMD_VENDOR,
10945 .doit = nl80211_vendor_cmd,
10946 .policy = nl80211_policy,
10947 .flags = GENL_ADMIN_PERM,
10948 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10949 NL80211_FLAG_NEED_RTNL,
10950 },
fa9ffc74
KP		 10951 {
10952 .cmd = NL80211_CMD_SET_QOS_MAP,
10953 .doit = nl80211_set_qos_map,
10954 .policy = nl80211_policy,
10955 .flags = GENL_ADMIN_PERM,
10956 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10957 NL80211_FLAG_NEED_RTNL,
10958 },
960d01ac
JB		 10959 {
10960 .cmd = NL80211_CMD_ADD_TX_TS,
10961 .doit = nl80211_add_tx_ts,
10962 .policy = nl80211_policy,
10963 .flags = GENL_ADMIN_PERM,
10964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10965 NL80211_FLAG_NEED_RTNL,
10966 },
10967 {
10968 .cmd = NL80211_CMD_DEL_TX_TS,
10969 .doit = nl80211_del_tx_ts,
10970 .policy = nl80211_policy,
10971 .flags = GENL_ADMIN_PERM,
10972 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10973 NL80211_FLAG_NEED_RTNL,
10974 },
1057d35e
AN		 10975 {
10976 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10977 .doit = nl80211_tdls_channel_switch,
10978 .policy = nl80211_policy,
10979 .flags = GENL_ADMIN_PERM,
10980 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10981 NL80211_FLAG_NEED_RTNL,
10982 },
10983 {
10984 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10985 .doit = nl80211_tdls_cancel_channel_switch,
10986 .policy = nl80211_policy,
10987 .flags = GENL_ADMIN_PERM,
10988 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10989 NL80211_FLAG_NEED_RTNL,
10990 },
55682965 10991};
9588bbd5 10992
55682965
JB		 10993/* notification functions */
10994
3bb20556
JB		 10995void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10996 enum nl80211_commands cmd)
55682965
JB		 10997{
10998 struct sk_buff *msg;
86e8cf98 10999 struct nl80211_dump_wiphy_state state = {};
55682965 11000
3bb20556
JB		 11001 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11002 cmd != NL80211_CMD_DEL_WIPHY);
11003
fd2120ca 11004 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 11005 if (!msg)
11006 return;
11007
3bb20556 11008 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 11009 nlmsg_free(msg);
11010 return;
11011 }
11012
68eb5503 11013 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11014 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 11015}
11016
362a415d
JB		 11017static int nl80211_add_scan_req(struct sk_buff *msg,
11018 struct cfg80211_registered_device *rdev)
11019{
11020 struct cfg80211_scan_request *req = rdev->scan_req;
11021 struct nlattr *nest;
11022 int i;
11023
11024 if (WARN_ON(!req))
11025 return 0;
11026
11027 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11028 if (!nest)
11029 goto nla_put_failure;
9360ffd1
DM		 11030 for (i = 0; i < req->n_ssids; i++) {
11031 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11032 goto nla_put_failure;
11033 }
362a415d
JB		 11034 nla_nest_end(msg, nest);
11035
11036 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11037 if (!nest)
11038 goto nla_put_failure;
9360ffd1
DM		 11039 for (i = 0; i < req->n_channels; i++) {
11040 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11041 goto nla_put_failure;
11042 }
362a415d
JB		 11043 nla_nest_end(msg, nest);
11044
9360ffd1
DM		 11045 if (req->ie &&
11046 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11047 goto nla_put_failure;
362a415d 11048
ae917c9f
JB		 11049 if (req->flags &&
11050 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11051 goto nla_put_failure;
ed473771 11052
362a415d
JB		 11053 return 0;
11054 nla_put_failure:
11055 return -ENOBUFS;
11056}
11057
a538e2d5
JB		 11058static int nl80211_send_scan_msg(struct sk_buff *msg,
11059 struct cfg80211_registered_device *rdev,
fd014284 11060 struct wireless_dev *wdev,
15e47304 11061 u32 portid, u32 seq, int flags,
a538e2d5 11062 u32 cmd)
2a519311
JB		 11063{
11064 void *hdr;
11065
15e47304 11066 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11067 if (!hdr)
11068 return -1;
11069
9360ffd1 11070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11071 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11072 wdev->netdev->ifindex)) ||
11073 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11074 goto nla_put_failure;
2a519311 11075
362a415d
JB		 11076 /* ignore errors and send incomplete event anyway */
11077 nl80211_add_scan_req(msg, rdev);
2a519311 11078
053c095a
JB		 11079 genlmsg_end(msg, hdr);
11080 return 0;
2a519311
JB		 11081
11082 nla_put_failure:
11083 genlmsg_cancel(msg, hdr);
11084 return -EMSGSIZE;
11085}
11086
807f8a8c
LC		 11087static int
11088nl80211_send_sched_scan_msg(struct sk_buff *msg,
11089 struct cfg80211_registered_device *rdev,
11090 struct net_device *netdev,
15e47304 11091 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11092{
11093 void *hdr;
11094
15e47304 11095 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11096 if (!hdr)
11097 return -1;
11098
9360ffd1
DM		 11099 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11100 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11101 goto nla_put_failure;
807f8a8c 11102
053c095a
JB		 11103 genlmsg_end(msg, hdr);
11104 return 0;
807f8a8c
LC		 11105
11106 nla_put_failure:
11107 genlmsg_cancel(msg, hdr);
11108 return -EMSGSIZE;
11109}
11110
a538e2d5 11111void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11112 struct wireless_dev *wdev)
a538e2d5
JB		 11113{
11114 struct sk_buff *msg;
11115
58050fce 11116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11117 if (!msg)
11118 return;
11119
fd014284 11120 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11121 NL80211_CMD_TRIGGER_SCAN) < 0) {
11122 nlmsg_free(msg);
11123 return;
11124 }
11125
68eb5503 11126 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11127 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11128}
11129
f9d15d16
JB		 11130struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11131 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11132{
11133 struct sk_buff *msg;
11134
fd2120ca 11135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11136 if (!msg)
f9d15d16 11137 return NULL;
2a519311 11138
fd014284 11139 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11140 aborted ? NL80211_CMD_SCAN_ABORTED :
11141 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11142 nlmsg_free(msg);
f9d15d16 11143 return NULL;
2a519311
JB		 11144 }
11145
f9d15d16 11146 return msg;
2a519311
JB		 11147}
11148
f9d15d16
JB		 11149void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11150 struct sk_buff *msg)
2a519311 11151{
2a519311
JB		 11152 if (!msg)
11153 return;
11154
68eb5503 11155 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11156 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11157}
11158
807f8a8c
LC		 11159void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11160 struct net_device *netdev)
11161{
11162 struct sk_buff *msg;
11163
11164 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11165 if (!msg)
11166 return;
11167
11168 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11169 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11170 nlmsg_free(msg);
11171 return;
11172 }
11173
68eb5503 11174 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11175 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11176}
11177
11178void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11179 struct net_device *netdev, u32 cmd)
11180{
11181 struct sk_buff *msg;
11182
58050fce 11183 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11184 if (!msg)
11185 return;
11186
11187 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11188 nlmsg_free(msg);
11189 return;
11190 }
11191
68eb5503 11192 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11193 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11194}
11195
b0d7aa59
JD		 11196static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11197 struct regulatory_request *request)
73d54c9e 11198{
73d54c9e 11199 /* Userspace can always count this one always being set */
9360ffd1
DM		 11200 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11201 goto nla_put_failure;
11202
11203 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11204 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11205 NL80211_REGDOM_TYPE_WORLD))
11206 goto nla_put_failure;
11207 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11208 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11209 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11210 goto nla_put_failure;
11211 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11212 request->intersect) {
11213 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11214 NL80211_REGDOM_TYPE_INTERSECTION))
11215 goto nla_put_failure;
11216 } else {
11217 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11218 NL80211_REGDOM_TYPE_COUNTRY) ||
11219 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11220 request->alpha2))
11221 goto nla_put_failure;
11222 }
11223
ad30ca2c
AN		 11224 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11225 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11226
11227 if (wiphy &&
11228 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11229 goto nla_put_failure;
1bdd716c
AN		 11230
11231 if (wiphy &&
11232 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11233 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11234 goto nla_put_failure;
ad30ca2c 11235 }
73d54c9e 11236
b0d7aa59
JD		 11237 return true;
11238
11239nla_put_failure:
11240 return false;
11241}
11242
11243/*
11244 * This can happen on global regulatory changes or device specific settings
11245 * based on custom regulatory domains.
11246 */
11247void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11248 struct regulatory_request *request)
11249{
11250 struct sk_buff *msg;
11251 void *hdr;
11252
11253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11254 if (!msg)
11255 return;
11256
11257 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11258 if (!hdr) {
11259 nlmsg_free(msg);
11260 return;
11261 }
11262
11263 if (nl80211_reg_change_event_fill(msg, request) == false)
11264 goto nla_put_failure;
11265
3b7b72ee 11266 genlmsg_end(msg, hdr);
73d54c9e 11267
bc43b28c 11268 rcu_read_lock();
68eb5503 11269 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11270 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11271 rcu_read_unlock();
73d54c9e
LR		 11272
11273 return;
11274
11275nla_put_failure:
11276 genlmsg_cancel(msg, hdr);
11277 nlmsg_free(msg);
11278}
11279
6039f6d2
JM		 11280static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11281 struct net_device *netdev,
11282 const u8 *buf, size_t len,
b0b6aa2c
EP		 11283 enum nl80211_commands cmd, gfp_t gfp,
11284 int uapsd_queues)
6039f6d2
JM		 11285{
11286 struct sk_buff *msg;
11287 void *hdr;
11288
e6d6e342 11289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11290 if (!msg)
11291 return;
11292
11293 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11294 if (!hdr) {
11295 nlmsg_free(msg);
11296 return;
11297 }
11298
9360ffd1
DM		 11299 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11300 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11301 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11302 goto nla_put_failure;
6039f6d2 11303
b0b6aa2c
EP		 11304 if (uapsd_queues >= 0) {
11305 struct nlattr *nla_wmm =
11306 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11307 if (!nla_wmm)
11308 goto nla_put_failure;
11309
11310 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11311 uapsd_queues))
11312 goto nla_put_failure;
11313
11314 nla_nest_end(msg, nla_wmm);
11315 }
11316
3b7b72ee 11317 genlmsg_end(msg, hdr);
6039f6d2 11318
68eb5503 11319 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11320 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11321 return;
11322
11323 nla_put_failure:
11324 genlmsg_cancel(msg, hdr);
11325 nlmsg_free(msg);
11326}
11327
11328void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11329 struct net_device *netdev, const u8 *buf,
11330 size_t len, gfp_t gfp)
6039f6d2
JM		 11331{
11332 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11333 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11334}
11335
11336void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11337 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11338 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11339{
e6d6e342 11340 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11341 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11342}
11343
53b46b84 11344void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11345 struct net_device *netdev, const u8 *buf,
11346 size_t len, gfp_t gfp)
6039f6d2
JM		 11347{
11348 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11349 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11350}
11351
53b46b84
JM		 11352void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11353 struct net_device *netdev, const u8 *buf,
e6d6e342 11354 size_t len, gfp_t gfp)
6039f6d2
JM		 11355{
11356 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11357 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11358}
11359
6ff57cf8
JB		 11360void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11361 size_t len)
cf4e594e 11362{
947add36
JB		 11363 struct wireless_dev *wdev = dev->ieee80211_ptr;
11364 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11365 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11366 const struct ieee80211_mgmt *mgmt = (void *)buf;
11367 u32 cmd;
947add36 11368
6ff57cf8
JB		 11369 if (WARN_ON(len < 2))
11370 return;
cf4e594e 11371
6ff57cf8
JB		 11372 if (ieee80211_is_deauth(mgmt->frame_control))
11373 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11374 else
11375 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11376
6ff57cf8 11377 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11378 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11379}
6ff57cf8 11380EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11381
1b06bb40
LR		 11382static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11383 struct net_device *netdev, int cmd,
e6d6e342 11384 const u8 *addr, gfp_t gfp)
1965c853
JM		 11385{
11386 struct sk_buff *msg;
11387 void *hdr;
11388
e6d6e342 11389 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11390 if (!msg)
11391 return;
11392
11393 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11394 if (!hdr) {
11395 nlmsg_free(msg);
11396 return;
11397 }
11398
9360ffd1
DM		 11399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11400 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11401 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11403 goto nla_put_failure;
1965c853 11404
3b7b72ee 11405 genlmsg_end(msg, hdr);
1965c853 11406
68eb5503 11407 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11408 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11409 return;
11410
11411 nla_put_failure:
11412 genlmsg_cancel(msg, hdr);
11413 nlmsg_free(msg);
11414}
11415
11416void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11417 struct net_device *netdev, const u8 *addr,
11418 gfp_t gfp)
1965c853
JM		 11419{
11420 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11421 addr, gfp);
1965c853
JM		 11422}
11423
11424void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11425 struct net_device *netdev, const u8 *addr,
11426 gfp_t gfp)
1965c853 11427{
e6d6e342
JB		 11428 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11429 addr, gfp);
1965c853
JM		 11430}
11431
b23aa676
SO		 11432void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11433 struct net_device *netdev, const u8 *bssid,
11434 const u8 *req_ie, size_t req_ie_len,
11435 const u8 *resp_ie, size_t resp_ie_len,
11436 u16 status, gfp_t gfp)
11437{
11438 struct sk_buff *msg;
11439 void *hdr;
11440
58050fce 11441 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11442 if (!msg)
11443 return;
11444
11445 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11446 if (!hdr) {
11447 nlmsg_free(msg);
11448 return;
11449 }
11450
9360ffd1
DM		 11451 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11452 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11453 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11454 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11455 (req_ie &&
11456 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11457 (resp_ie &&
11458 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11459 goto nla_put_failure;
b23aa676 11460
3b7b72ee 11461 genlmsg_end(msg, hdr);
b23aa676 11462
68eb5503 11463 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11464 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11465 return;
11466
11467 nla_put_failure:
11468 genlmsg_cancel(msg, hdr);
11469 nlmsg_free(msg);
11470
11471}
11472
11473void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11474 struct net_device *netdev, const u8 *bssid,
11475 const u8 *req_ie, size_t req_ie_len,
11476 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11477{
11478 struct sk_buff *msg;
11479 void *hdr;
11480
58050fce 11481 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11482 if (!msg)
11483 return;
11484
11485 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11486 if (!hdr) {
11487 nlmsg_free(msg);
11488 return;
11489 }
11490
9360ffd1
DM		 11491 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11492 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11494 (req_ie &&
11495 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11496 (resp_ie &&
11497 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11498 goto nla_put_failure;
b23aa676 11499
3b7b72ee 11500 genlmsg_end(msg, hdr);
b23aa676 11501
68eb5503 11502 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11503 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11504 return;
11505
11506 nla_put_failure:
11507 genlmsg_cancel(msg, hdr);
11508 nlmsg_free(msg);
11509
11510}
11511
11512void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11513 struct net_device *netdev, u16 reason,
667503dd 11514 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11515{
11516 struct sk_buff *msg;
11517 void *hdr;
11518
58050fce 11519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11520 if (!msg)
11521 return;
11522
11523 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11524 if (!hdr) {
11525 nlmsg_free(msg);
11526 return;
11527 }
11528
9360ffd1
DM		 11529 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11530 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11531 (from_ap && reason &&
11532 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11533 (from_ap &&
11534 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11535 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11536 goto nla_put_failure;
b23aa676 11537
3b7b72ee 11538 genlmsg_end(msg, hdr);
b23aa676 11539
68eb5503 11540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11541 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11542 return;
11543
11544 nla_put_failure:
11545 genlmsg_cancel(msg, hdr);
11546 nlmsg_free(msg);
11547
11548}
11549
04a773ad
JB		 11550void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11551 struct net_device *netdev, const u8 *bssid,
11552 gfp_t gfp)
11553{
11554 struct sk_buff *msg;
11555 void *hdr;
11556
fd2120ca 11557 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11558 if (!msg)
11559 return;
11560
11561 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11562 if (!hdr) {
11563 nlmsg_free(msg);
11564 return;
11565 }
11566
9360ffd1
DM		 11567 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11568 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11569 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11570 goto nla_put_failure;
04a773ad 11571
3b7b72ee 11572 genlmsg_end(msg, hdr);
04a773ad 11573
68eb5503 11574 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11575 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11576 return;
11577
11578 nla_put_failure:
11579 genlmsg_cancel(msg, hdr);
11580 nlmsg_free(msg);
11581}
11582
947add36
JB		 11583void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11584 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11585{
947add36 11586 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11587 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11588 struct sk_buff *msg;
11589 void *hdr;
11590
947add36
JB		 11591 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11592 return;
11593
11594 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11595
c93b5e71
JC		 11596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11597 if (!msg)
11598 return;
11599
11600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11601 if (!hdr) {
11602 nlmsg_free(msg);
11603 return;
11604 }
11605
9360ffd1 11606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11607 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11608 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11609 (ie_len && ie &&
11610 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11611 goto nla_put_failure;
c93b5e71 11612
3b7b72ee 11613 genlmsg_end(msg, hdr);
c93b5e71 11614
68eb5503 11615 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11616 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11617 return;
11618
11619 nla_put_failure:
11620 genlmsg_cancel(msg, hdr);
11621 nlmsg_free(msg);
11622}
947add36 11623EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11624
a3b8b056
JM		 11625void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11626 struct net_device *netdev, const u8 *addr,
11627 enum nl80211_key_type key_type, int key_id,
e6d6e342 11628 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11629{
11630 struct sk_buff *msg;
11631 void *hdr;
11632
e6d6e342 11633 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11634 if (!msg)
11635 return;
11636
11637 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11638 if (!hdr) {
11639 nlmsg_free(msg);
11640 return;
11641 }
11642
9360ffd1
DM		 11643 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11644 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11645 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11646 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11647 (key_id != -1 &&
11648 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11649 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11650 goto nla_put_failure;
a3b8b056 11651
3b7b72ee 11652 genlmsg_end(msg, hdr);
a3b8b056 11653
68eb5503 11654 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11655 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11656 return;
11657
11658 nla_put_failure:
11659 genlmsg_cancel(msg, hdr);
11660 nlmsg_free(msg);
11661}
11662
6bad8766
LR		 11663void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11664 struct ieee80211_channel *channel_before,
11665 struct ieee80211_channel *channel_after)
11666{
11667 struct sk_buff *msg;
11668 void *hdr;
11669 struct nlattr *nl_freq;
11670
fd2120ca 11671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11672 if (!msg)
11673 return;
11674
11675 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11676 if (!hdr) {
11677 nlmsg_free(msg);
11678 return;
11679 }
11680
11681 /*
11682 * Since we are applying the beacon hint to a wiphy we know its
11683 * wiphy_idx is valid
11684 */
9360ffd1
DM		 11685 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11686 goto nla_put_failure;
6bad8766
LR		 11687
11688 /* Before */
11689 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11690 if (!nl_freq)
11691 goto nla_put_failure;
cdc89b97 11692 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11693 goto nla_put_failure;
11694 nla_nest_end(msg, nl_freq);
11695
11696 /* After */
11697 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11698 if (!nl_freq)
11699 goto nla_put_failure;
cdc89b97 11700 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11701 goto nla_put_failure;
11702 nla_nest_end(msg, nl_freq);
11703
3b7b72ee 11704 genlmsg_end(msg, hdr);
6bad8766 11705
463d0183 11706 rcu_read_lock();
68eb5503 11707 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11708 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11709 rcu_read_unlock();
6bad8766
LR		 11710
11711 return;
11712
11713nla_put_failure:
11714 genlmsg_cancel(msg, hdr);
11715 nlmsg_free(msg);
11716}
11717
9588bbd5
JM		 11718static void nl80211_send_remain_on_chan_event(
11719 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11720 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11721 struct ieee80211_channel *chan,
9588bbd5
JM		 11722 unsigned int duration, gfp_t gfp)
11723{
11724 struct sk_buff *msg;
11725 void *hdr;
11726
11727 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11728 if (!msg)
11729 return;
11730
11731 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11732 if (!hdr) {
11733 nlmsg_free(msg);
11734 return;
11735 }
11736
9360ffd1 11737 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11738 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11739 wdev->netdev->ifindex)) ||
00f53350 11740 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11741 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11742 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11743 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11744 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11745 goto nla_put_failure;
9588bbd5 11746
9360ffd1
DM		 11747 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11748 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11749 goto nla_put_failure;
9588bbd5 11750
3b7b72ee 11751 genlmsg_end(msg, hdr);
9588bbd5 11752
68eb5503 11753 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11754 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11755 return;
11756
11757 nla_put_failure:
11758 genlmsg_cancel(msg, hdr);
11759 nlmsg_free(msg);
11760}
11761
947add36
JB		 11762void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11763 struct ieee80211_channel *chan,
11764 unsigned int duration, gfp_t gfp)
9588bbd5 11765{
947add36 11766 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11767 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11768
11769 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11770 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11771 rdev, wdev, cookie, chan,
42d97a59 11772 duration, gfp);
9588bbd5 11773}
947add36 11774EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11775
947add36
JB		 11776void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11777 struct ieee80211_channel *chan,
11778 gfp_t gfp)
9588bbd5 11779{
947add36 11780 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11781 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11782
11783 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11784 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11785 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11786}
947add36 11787EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11788
947add36
JB		 11789void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11790 struct station_info *sinfo, gfp_t gfp)
98b62183 11791{
947add36 11792 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11793 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11794 struct sk_buff *msg;
11795
947add36
JB		 11796 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11797
58050fce 11798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11799 if (!msg)
11800 return;
11801
cf5ead82 11802 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 11803 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11804 nlmsg_free(msg);
11805 return;
11806 }
11807
68eb5503 11808 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11809 NL80211_MCGRP_MLME, gfp);
98b62183 11810}
947add36 11811EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11812
cf5ead82
JB		 11813void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11814 struct station_info *sinfo, gfp_t gfp)
ec15e68b 11815{
947add36 11816 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11817 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 11818 struct sk_buff *msg;
cf5ead82
JB		 11819 struct station_info empty_sinfo = {};
11820
11821 if (!sinfo)
11822 sinfo = &empty_sinfo;
ec15e68b 11823
947add36
JB		 11824 trace_cfg80211_del_sta(dev, mac_addr);
11825
58050fce 11826 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11827 if (!msg)
11828 return;
11829
cf5ead82 11830 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
57007121 11831 rdev, dev, mac_addr, sinfo) < 0) {
ec15e68b
JM		 11832 nlmsg_free(msg);
11833 return;
11834 }
11835
68eb5503 11836 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11837 NL80211_MCGRP_MLME, gfp);
ec15e68b 11838}
cf5ead82 11839EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 11840
947add36
JB		 11841void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11842 enum nl80211_connect_failed_reason reason,
11843 gfp_t gfp)
ed44a951 11844{
947add36 11845 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11846 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11847 struct sk_buff *msg;
11848 void *hdr;
11849
11850 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11851 if (!msg)
11852 return;
11853
11854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11855 if (!hdr) {
11856 nlmsg_free(msg);
11857 return;
11858 }
11859
11860 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11862 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11863 goto nla_put_failure;
11864
11865 genlmsg_end(msg, hdr);
11866
68eb5503 11867 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11868 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11869 return;
11870
11871 nla_put_failure:
11872 genlmsg_cancel(msg, hdr);
11873 nlmsg_free(msg);
11874}
947add36 11875EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11876
b92ab5d8
JB		 11877static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11878 const u8 *addr, gfp_t gfp)
28946da7
JB		 11879{
11880 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11881 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11882 struct sk_buff *msg;
11883 void *hdr;
15e47304 11884 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11885
15e47304 11886 if (!nlportid)
28946da7
JB		 11887 return false;
11888
11889 msg = nlmsg_new(100, gfp);
11890 if (!msg)
11891 return true;
11892
b92ab5d8 11893 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11894 if (!hdr) {
11895 nlmsg_free(msg);
11896 return true;
11897 }
11898
9360ffd1
DM		 11899 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11900 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11901 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11902 goto nla_put_failure;
28946da7 11903
9c90a9f6 11904 genlmsg_end(msg, hdr);
15e47304 11905 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11906 return true;
11907
11908 nla_put_failure:
11909 genlmsg_cancel(msg, hdr);
11910 nlmsg_free(msg);
11911 return true;
11912}
11913
947add36
JB		 11914bool cfg80211_rx_spurious_frame(struct net_device *dev,
11915 const u8 *addr, gfp_t gfp)
b92ab5d8 11916{
947add36
JB		 11917 struct wireless_dev *wdev = dev->ieee80211_ptr;
11918 bool ret;
11919
11920 trace_cfg80211_rx_spurious_frame(dev, addr);
11921
11922 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11923 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11924 trace_cfg80211_return_bool(false);
11925 return false;
11926 }
11927 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11928 addr, gfp);
11929 trace_cfg80211_return_bool(ret);
11930 return ret;
b92ab5d8 11931}
947add36 11932EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11933
947add36
JB		 11934bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11935 const u8 *addr, gfp_t gfp)
b92ab5d8 11936{
947add36
JB		 11937 struct wireless_dev *wdev = dev->ieee80211_ptr;
11938 bool ret;
11939
11940 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11941
11942 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11943 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11944 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11945 trace_cfg80211_return_bool(false);
11946 return false;
11947 }
11948 ret = __nl80211_unexpected_frame(dev,
11949 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11950 addr, gfp);
11951 trace_cfg80211_return_bool(ret);
11952 return ret;
b92ab5d8 11953}
947add36 11954EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11955
2e161f78 11956int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11957 struct wireless_dev *wdev, u32 nlportid,
804483e9 11958 int freq, int sig_dbm,
19504cf5 11959 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11960{
71bbc994 11961 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11962 struct sk_buff *msg;
11963 void *hdr;
026331c4
JM		 11964
11965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11966 if (!msg)
11967 return -ENOMEM;
11968
2e161f78 11969 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11970 if (!hdr) {
11971 nlmsg_free(msg);
11972 return -ENOMEM;
11973 }
11974
9360ffd1 11975 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11976 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11977 netdev->ifindex)) ||
a838490b 11978 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11979 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11980 (sig_dbm &&
11981 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11982 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11983 (flags &&
11984 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11985 goto nla_put_failure;
026331c4 11986
3b7b72ee 11987 genlmsg_end(msg, hdr);
026331c4 11988
15e47304 11989 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11990
11991 nla_put_failure:
11992 genlmsg_cancel(msg, hdr);
11993 nlmsg_free(msg);
11994 return -ENOBUFS;
11995}
11996
947add36
JB		 11997void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11998 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11999{
947add36 12000 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12001 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 12002 struct net_device *netdev = wdev->netdev;
026331c4
JM		 12003 struct sk_buff *msg;
12004 void *hdr;
12005
947add36
JB		 12006 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12007
026331c4
JM		 12008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12009 if (!msg)
12010 return;
12011
2e161f78 12012 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 12013 if (!hdr) {
12014 nlmsg_free(msg);
12015 return;
12016 }
12017
9360ffd1 12018 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 12019 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12020 netdev->ifindex)) ||
a838490b 12021 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 12022 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12023 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12024 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12025 goto nla_put_failure;
026331c4 12026
3b7b72ee 12027 genlmsg_end(msg, hdr);
026331c4 12028
68eb5503 12029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12030 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 12031 return;
12032
12033 nla_put_failure:
12034 genlmsg_cancel(msg, hdr);
12035 nlmsg_free(msg);
12036}
947add36 12037EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 12038
5b97f49d
JB		 12039static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12040 const char *mac, gfp_t gfp)
d6dc1a38 12041{
947add36 12042 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12043 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12044 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12045 void **cb;
947add36 12046
d6dc1a38 12047 if (!msg)
5b97f49d 12048 return NULL;
d6dc1a38 12049
5b97f49d
JB		 12050 cb = (void **)msg->cb;
12051
12052 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12053 if (!cb[0]) {
d6dc1a38 12054 nlmsg_free(msg);
5b97f49d 12055 return NULL;
d6dc1a38
JO		 12056 }
12057
9360ffd1 12058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12059 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12060 goto nla_put_failure;
d6dc1a38 12061
5b97f49d 12062 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12063 goto nla_put_failure;
12064
5b97f49d
JB		 12065 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12066 if (!cb[1])
9360ffd1 12067 goto nla_put_failure;
d6dc1a38 12068
5b97f49d 12069 cb[2] = rdev;
d6dc1a38 12070
5b97f49d
JB		 12071 return msg;
12072 nla_put_failure:
12073 nlmsg_free(msg);
12074 return NULL;
12075}
12076
12077static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12078{
12079 void **cb = (void **)msg->cb;
12080 struct cfg80211_registered_device *rdev = cb[2];
12081
12082 nla_nest_end(msg, cb[1]);
12083 genlmsg_end(msg, cb[0]);
12084
12085 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12086
68eb5503 12087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12088 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12089}
12090
12091void cfg80211_cqm_rssi_notify(struct net_device *dev,
12092 enum nl80211_cqm_rssi_threshold_event rssi_event,
12093 gfp_t gfp)
12094{
12095 struct sk_buff *msg;
12096
12097 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12098
98f03342
JB		 12099 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12100 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12101 return;
12102
5b97f49d
JB		 12103 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12104 if (!msg)
12105 return;
12106
12107 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12108 rssi_event))
12109 goto nla_put_failure;
12110
12111 cfg80211_send_cqm(msg, gfp);
12112
d6dc1a38
JO		 12113 return;
12114
12115 nla_put_failure:
d6dc1a38
JO		 12116 nlmsg_free(msg);
12117}
947add36 12118EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12119
5b97f49d
JB		 12120void cfg80211_cqm_txe_notify(struct net_device *dev,
12121 const u8 *peer, u32 num_packets,
12122 u32 rate, u32 intvl, gfp_t gfp)
12123{
12124 struct sk_buff *msg;
12125
12126 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12127 if (!msg)
12128 return;
12129
12130 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12131 goto nla_put_failure;
12132
12133 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12134 goto nla_put_failure;
12135
12136 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12137 goto nla_put_failure;
12138
12139 cfg80211_send_cqm(msg, gfp);
12140 return;
12141
12142 nla_put_failure:
12143 nlmsg_free(msg);
12144}
12145EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12146
12147void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12148 const u8 *peer, u32 num_packets, gfp_t gfp)
12149{
12150 struct sk_buff *msg;
12151
12152 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12153
12154 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12155 if (!msg)
12156 return;
12157
12158 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12159 goto nla_put_failure;
12160
12161 cfg80211_send_cqm(msg, gfp);
12162 return;
12163
12164 nla_put_failure:
12165 nlmsg_free(msg);
12166}
12167EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12168
98f03342
JB		 12169void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12170{
12171 struct sk_buff *msg;
12172
12173 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12174 if (!msg)
12175 return;
12176
12177 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12178 goto nla_put_failure;
12179
12180 cfg80211_send_cqm(msg, gfp);
12181 return;
12182
12183 nla_put_failure:
12184 nlmsg_free(msg);
12185}
12186EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12187
947add36
JB		 12188static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12189 struct net_device *netdev, const u8 *bssid,
12190 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12191{
12192 struct sk_buff *msg;
12193 struct nlattr *rekey_attr;
12194 void *hdr;
12195
58050fce 12196 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12197 if (!msg)
12198 return;
12199
12200 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12201 if (!hdr) {
12202 nlmsg_free(msg);
12203 return;
12204 }
12205
9360ffd1
DM		 12206 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12207 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12208 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12209 goto nla_put_failure;
e5497d76
JB		 12210
12211 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12212 if (!rekey_attr)
12213 goto nla_put_failure;
12214
9360ffd1
DM		 12215 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12216 NL80211_REPLAY_CTR_LEN, replay_ctr))
12217 goto nla_put_failure;
e5497d76
JB		 12218
12219 nla_nest_end(msg, rekey_attr);
12220
3b7b72ee 12221 genlmsg_end(msg, hdr);
e5497d76 12222
68eb5503 12223 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12224 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12225 return;
12226
12227 nla_put_failure:
12228 genlmsg_cancel(msg, hdr);
12229 nlmsg_free(msg);
12230}
12231
947add36
JB		 12232void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12233 const u8 *replay_ctr, gfp_t gfp)
12234{
12235 struct wireless_dev *wdev = dev->ieee80211_ptr;
12236 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12237 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12238
12239 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12240 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12241}
12242EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12243
12244static void
12245nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12246 struct net_device *netdev, int index,
12247 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12248{
12249 struct sk_buff *msg;
12250 struct nlattr *attr;
12251 void *hdr;
12252
58050fce 12253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12254 if (!msg)
12255 return;
12256
12257 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12258 if (!hdr) {
12259 nlmsg_free(msg);
12260 return;
12261 }
12262
9360ffd1
DM		 12263 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12264 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12265 goto nla_put_failure;
c9df56b4
JM		 12266
12267 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12268 if (!attr)
12269 goto nla_put_failure;
12270
9360ffd1
DM		 12271 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12272 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12273 (preauth &&
12274 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12275 goto nla_put_failure;
c9df56b4
JM		 12276
12277 nla_nest_end(msg, attr);
12278
3b7b72ee 12279 genlmsg_end(msg, hdr);
c9df56b4 12280
68eb5503 12281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12282 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12283 return;
12284
12285 nla_put_failure:
12286 genlmsg_cancel(msg, hdr);
12287 nlmsg_free(msg);
12288}
12289
947add36
JB		 12290void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12291 const u8 *bssid, bool preauth, gfp_t gfp)
12292{
12293 struct wireless_dev *wdev = dev->ieee80211_ptr;
12294 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12295 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12296
12297 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12298 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12299}
12300EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12301
12302static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12303 struct net_device *netdev,
12304 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12305 gfp_t gfp,
12306 enum nl80211_commands notif,
12307 u8 count)
5314526b
TP		 12308{
12309 struct sk_buff *msg;
12310 void *hdr;
12311
58050fce 12312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12313 if (!msg)
12314 return;
12315
f8d7552e 12316 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12317 if (!hdr) {
12318 nlmsg_free(msg);
12319 return;
12320 }
12321
683b6d3b
JB		 12322 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12323 goto nla_put_failure;
12324
12325 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12326 goto nla_put_failure;
5314526b 12327
f8d7552e
LC		 12328 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12329 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12330 goto nla_put_failure;
12331
5314526b
TP		 12332 genlmsg_end(msg, hdr);
12333
68eb5503 12334 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12335 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12336 return;
12337
12338 nla_put_failure:
12339 genlmsg_cancel(msg, hdr);
12340 nlmsg_free(msg);
12341}
12342
947add36
JB		 12343void cfg80211_ch_switch_notify(struct net_device *dev,
12344 struct cfg80211_chan_def *chandef)
84f10708 12345{
947add36
JB		 12346 struct wireless_dev *wdev = dev->ieee80211_ptr;
12347 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12348 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12349
e487eaeb 12350 ASSERT_WDEV_LOCK(wdev);
947add36 12351
e487eaeb 12352 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12353
9e0e2961 12354 wdev->chandef = *chandef;
96f55f12 12355 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12356 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12357 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12358}
12359EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12360
f8d7552e
LC		 12361void cfg80211_ch_switch_started_notify(struct net_device *dev,
12362 struct cfg80211_chan_def *chandef,
12363 u8 count)
12364{
12365 struct wireless_dev *wdev = dev->ieee80211_ptr;
12366 struct wiphy *wiphy = wdev->wiphy;
12367 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12368
12369 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12370
12371 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12372 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12373}
12374EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12375
04f39047
SW		 12376void
12377nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12378 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12379 enum nl80211_radar_event event,
12380 struct net_device *netdev, gfp_t gfp)
12381{
12382 struct sk_buff *msg;
12383 void *hdr;
12384
12385 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12386 if (!msg)
12387 return;
12388
12389 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12390 if (!hdr) {
12391 nlmsg_free(msg);
12392 return;
12393 }
12394
12395 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12396 goto nla_put_failure;
12397
12398 /* NOP and radar events don't need a netdev parameter */
12399 if (netdev) {
12400 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12401
12402 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12403 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12404 goto nla_put_failure;
12405 }
12406
12407 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12408 goto nla_put_failure;
12409
12410 if (nl80211_send_chandef(msg, chandef))
12411 goto nla_put_failure;
12412
9c90a9f6 12413 genlmsg_end(msg, hdr);
04f39047 12414
68eb5503 12415 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12416 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12417 return;
12418
12419 nla_put_failure:
12420 genlmsg_cancel(msg, hdr);
12421 nlmsg_free(msg);
12422}
12423
7f6cf311
JB		 12424void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12425 u64 cookie, bool acked, gfp_t gfp)
12426{
12427 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12428 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12429 struct sk_buff *msg;
12430 void *hdr;
7f6cf311 12431
4ee3e063
BL		 12432 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12433
58050fce 12434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12435
7f6cf311
JB		 12436 if (!msg)
12437 return;
12438
12439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12440 if (!hdr) {
12441 nlmsg_free(msg);
12442 return;
12443 }
12444
9360ffd1
DM		 12445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12446 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12447 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12448 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12449 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12450 goto nla_put_failure;
7f6cf311 12451
9c90a9f6 12452 genlmsg_end(msg, hdr);
7f6cf311 12453
68eb5503 12454 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12455 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12456 return;
12457
12458 nla_put_failure:
12459 genlmsg_cancel(msg, hdr);
12460 nlmsg_free(msg);
12461}
12462EXPORT_SYMBOL(cfg80211_probe_status);
12463
5e760230
JB		 12464void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12465 const u8 *frame, size_t len,
37c73b5f 12466 int freq, int sig_dbm)
5e760230 12467{
f26cbf40 12468 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12469 struct sk_buff *msg;
12470 void *hdr;
37c73b5f 12471 struct cfg80211_beacon_registration *reg;
5e760230 12472
4ee3e063
BL		 12473 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12474
37c73b5f
BG		 12475 spin_lock_bh(&rdev->beacon_registrations_lock);
12476 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12477 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12478 if (!msg) {
12479 spin_unlock_bh(&rdev->beacon_registrations_lock);
12480 return;
12481 }
5e760230 12482
37c73b5f
BG		 12483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12484 if (!hdr)
12485 goto nla_put_failure;
5e760230 12486
37c73b5f
BG		 12487 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12488 (freq &&
12489 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12490 (sig_dbm &&
12491 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12492 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12493 goto nla_put_failure;
5e760230 12494
37c73b5f 12495 genlmsg_end(msg, hdr);
5e760230 12496
37c73b5f
BG		 12497 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12498 }
12499 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12500 return;
12501
12502 nla_put_failure:
37c73b5f
BG		 12503 spin_unlock_bh(&rdev->beacon_registrations_lock);
12504 if (hdr)
12505 genlmsg_cancel(msg, hdr);
5e760230
JB		 12506 nlmsg_free(msg);
12507}
12508EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12509
cd8f7cb4 12510#ifdef CONFIG_PM
8cd4d456
LC		 12511static int cfg80211_net_detect_results(struct sk_buff *msg,
12512 struct cfg80211_wowlan_wakeup *wakeup)
12513{
12514 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12515 struct nlattr *nl_results, *nl_match, *nl_freqs;
12516 int i, j;
12517
12518 nl_results = nla_nest_start(
12519 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12520 if (!nl_results)
12521 return -EMSGSIZE;
12522
12523 for (i = 0; i < nd->n_matches; i++) {
12524 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12525
12526 nl_match = nla_nest_start(msg, i);
12527 if (!nl_match)
12528 break;
12529
12530 /* The SSID attribute is optional in nl80211, but for
12531 * simplicity reasons it's always present in the
12532 * cfg80211 structure. If a driver can't pass the
12533 * SSID, that needs to be changed. A zero length SSID
12534 * is still a valid SSID (wildcard), so it cannot be
12535 * used for this purpose.
12536 */
12537 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12538 match->ssid.ssid)) {
12539 nla_nest_cancel(msg, nl_match);
12540 goto out;
12541 }
12542
12543 if (match->n_channels) {
12544 nl_freqs = nla_nest_start(
12545 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12546 if (!nl_freqs) {
12547 nla_nest_cancel(msg, nl_match);
12548 goto out;
12549 }
12550
12551 for (j = 0; j < match->n_channels; j++) {
12552 if (nla_put_u32(msg,
12553 NL80211_ATTR_WIPHY_FREQ,
12554 match->channels[j])) {
12555 nla_nest_cancel(msg, nl_freqs);
12556 nla_nest_cancel(msg, nl_match);
12557 goto out;
12558 }
12559 }
12560
12561 nla_nest_end(msg, nl_freqs);
12562 }
12563
12564 nla_nest_end(msg, nl_match);
12565 }
12566
12567out:
12568 nla_nest_end(msg, nl_results);
12569 return 0;
12570}
12571
cd8f7cb4
JB		 12572void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12573 struct cfg80211_wowlan_wakeup *wakeup,
12574 gfp_t gfp)
12575{
f26cbf40 12576 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12577 struct sk_buff *msg;
12578 void *hdr;
9c90a9f6 12579 int size = 200;
cd8f7cb4
JB		 12580
12581 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12582
12583 if (wakeup)
12584 size += wakeup->packet_present_len;
12585
12586 msg = nlmsg_new(size, gfp);
12587 if (!msg)
12588 return;
12589
12590 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12591 if (!hdr)
12592 goto free_msg;
12593
12594 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12595 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12596 goto free_msg;
12597
12598 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12599 wdev->netdev->ifindex))
12600 goto free_msg;
12601
12602 if (wakeup) {
12603 struct nlattr *reasons;
12604
12605 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12606 if (!reasons)
12607 goto free_msg;
cd8f7cb4
JB		 12608
12609 if (wakeup->disconnect &&
12610 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12611 goto free_msg;
12612 if (wakeup->magic_pkt &&
12613 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12614 goto free_msg;
12615 if (wakeup->gtk_rekey_failure &&
12616 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12617 goto free_msg;
12618 if (wakeup->eap_identity_req &&
12619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12620 goto free_msg;
12621 if (wakeup->four_way_handshake &&
12622 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12623 goto free_msg;
12624 if (wakeup->rfkill_release &&
12625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12626 goto free_msg;
12627
12628 if (wakeup->pattern_idx >= 0 &&
12629 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12630 wakeup->pattern_idx))
12631 goto free_msg;
12632
ae917c9f
JB		 12633 if (wakeup->tcp_match &&
12634 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12635 goto free_msg;
2a0e047e 12636
ae917c9f
JB		 12637 if (wakeup->tcp_connlost &&
12638 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12639 goto free_msg;
2a0e047e 12640
ae917c9f
JB		 12641 if (wakeup->tcp_nomoretokens &&
12642 nla_put_flag(msg,
12643 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12644 goto free_msg;
2a0e047e 12645
cd8f7cb4
JB		 12646 if (wakeup->packet) {
12647 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12648 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12649
12650 if (!wakeup->packet_80211) {
12651 pkt_attr =
12652 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12653 len_attr =
12654 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12655 }
12656
12657 if (wakeup->packet_len &&
12658 nla_put_u32(msg, len_attr, wakeup->packet_len))
12659 goto free_msg;
12660
12661 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12662 wakeup->packet))
12663 goto free_msg;
12664 }
12665
8cd4d456
LC		 12666 if (wakeup->net_detect &&
12667 cfg80211_net_detect_results(msg, wakeup))
12668 goto free_msg;
12669
cd8f7cb4
JB		 12670 nla_nest_end(msg, reasons);
12671 }
12672
9c90a9f6 12673 genlmsg_end(msg, hdr);
cd8f7cb4 12674
68eb5503 12675 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12676 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12677 return;
12678
12679 free_msg:
12680 nlmsg_free(msg);
12681}
12682EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12683#endif
12684
3475b094
JM		 12685void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12686 enum nl80211_tdls_operation oper,
12687 u16 reason_code, gfp_t gfp)
12688{
12689 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12690 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12691 struct sk_buff *msg;
12692 void *hdr;
3475b094
JM		 12693
12694 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12695 reason_code);
12696
12697 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12698 if (!msg)
12699 return;
12700
12701 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12702 if (!hdr) {
12703 nlmsg_free(msg);
12704 return;
12705 }
12706
12707 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12708 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12709 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12710 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12711 (reason_code > 0 &&
12712 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12713 goto nla_put_failure;
12714
9c90a9f6 12715 genlmsg_end(msg, hdr);
3475b094 12716
68eb5503 12717 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12718 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12719 return;
12720
12721 nla_put_failure:
12722 genlmsg_cancel(msg, hdr);
12723 nlmsg_free(msg);
12724}
12725EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12726
026331c4
JM		 12727static int nl80211_netlink_notify(struct notifier_block * nb,
12728 unsigned long state,
12729 void *_notify)
12730{
12731 struct netlink_notify *notify = _notify;
12732 struct cfg80211_registered_device *rdev;
12733 struct wireless_dev *wdev;
37c73b5f 12734 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12735
12736 if (state != NETLINK_URELEASE)
12737 return NOTIFY_DONE;
12738
12739 rcu_read_lock();
12740
5e760230 12741 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12742 bool schedule_destroy_work = false;
93a1e86c
JR		 12743 bool schedule_scan_stop = false;
12744 struct cfg80211_sched_scan_request *sched_scan_req =
12745 rcu_dereference(rdev->sched_scan_req);
12746
12747 if (sched_scan_req && notify->portid &&
12748 sched_scan_req->owner_nlportid == notify->portid)
12749 schedule_scan_stop = true;
78f22b6a
JB		 12750
12751 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12752 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12753
78f22b6a
JB		 12754 if (wdev->owner_nlportid == notify->portid)
12755 schedule_destroy_work = true;
12756 }
12757
37c73b5f
BG		 12758 spin_lock_bh(&rdev->beacon_registrations_lock);
12759 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12760 list) {
12761 if (reg->nlportid == notify->portid) {
12762 list_del(&reg->list);
12763 kfree(reg);
12764 break;
12765 }
12766 }
12767 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12768
12769 if (schedule_destroy_work) {
12770 struct cfg80211_iface_destroy *destroy;
12771
12772 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12773 if (destroy) {
12774 destroy->nlportid = notify->portid;
12775 spin_lock(&rdev->destroy_list_lock);
12776 list_add(&destroy->list, &rdev->destroy_list);
12777 spin_unlock(&rdev->destroy_list_lock);
12778 schedule_work(&rdev->destroy_work);
12779 }
93a1e86c
JR		 12780 } else if (schedule_scan_stop) {
12781 sched_scan_req->owner_nlportid = 0;
12782
12783 if (rdev->ops->sched_scan_stop &&
12784 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12785 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12786 }
5e760230 12787 }
026331c4
JM		 12788
12789 rcu_read_unlock();
12790
6784c7db 12791 return NOTIFY_OK;
026331c4
JM		 12792}
12793
12794static struct notifier_block nl80211_netlink_notifier = {
12795 .notifier_call = nl80211_netlink_notify,
12796};
12797
355199e0
JM		 12798void cfg80211_ft_event(struct net_device *netdev,
12799 struct cfg80211_ft_event_params *ft_event)
12800{
12801 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12802 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12803 struct sk_buff *msg;
12804 void *hdr;
355199e0
JM		 12805
12806 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12807
12808 if (!ft_event->target_ap)
12809 return;
12810
12811 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12812 if (!msg)
12813 return;
12814
12815 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12816 if (!hdr)
12817 goto out;
355199e0 12818
ae917c9f
JB		 12819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12822 goto out;
355199e0 12823
ae917c9f
JB		 12824 if (ft_event->ies &&
12825 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12826 goto out;
12827 if (ft_event->ric_ies &&
12828 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12829 ft_event->ric_ies))
12830 goto out;
355199e0 12831
9c90a9f6 12832 genlmsg_end(msg, hdr);
355199e0 12833
68eb5503 12834 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12835 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12836 return;
12837 out:
12838 nlmsg_free(msg);
355199e0
JM		 12839}
12840EXPORT_SYMBOL(cfg80211_ft_event);
12841
5de17984
AS		 12842void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12843{
12844 struct cfg80211_registered_device *rdev;
12845 struct sk_buff *msg;
12846 void *hdr;
12847 u32 nlportid;
12848
f26cbf40 12849 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12850 if (!rdev->crit_proto_nlportid)
12851 return;
12852
12853 nlportid = rdev->crit_proto_nlportid;
12854 rdev->crit_proto_nlportid = 0;
12855
12856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12857 if (!msg)
12858 return;
12859
12860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12861 if (!hdr)
12862 goto nla_put_failure;
12863
12864 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12865 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12866 goto nla_put_failure;
12867
12868 genlmsg_end(msg, hdr);
12869
12870 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12871 return;
12872
12873 nla_put_failure:
12874 if (hdr)
12875 genlmsg_cancel(msg, hdr);
12876 nlmsg_free(msg);
12877
12878}
12879EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12880
348baf0e
JB		 12881void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12882{
12883 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12884 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12885 struct sk_buff *msg;
12886 void *hdr;
12887
12888 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12889 if (!msg)
12890 return;
12891
12892 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12893 if (!hdr)
12894 goto out;
12895
12896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12897 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12898 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12899 goto out;
12900
12901 genlmsg_end(msg, hdr);
12902
12903 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12904 NL80211_MCGRP_MLME, GFP_KERNEL);
12905 return;
12906 out:
12907 nlmsg_free(msg);
12908}
12909
55682965
JB		 12910/* initialisation/exit functions */
12911
12912int nl80211_init(void)
12913{
0d63cbb5 12914 int err;
55682965 12915
2a94fe48
JB		 12916 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12917 nl80211_mcgrps);
55682965
JB		 12918 if (err)
12919 return err;
12920
026331c4
JM		 12921 err = netlink_register_notifier(&nl80211_netlink_notifier);
12922 if (err)
12923 goto err_out;
12924
55682965
JB		 12925 return 0;
12926 err_out:
12927 genl_unregister_family(&nl80211_fam);
12928 return err;
12929}
12930
12931void nl80211_exit(void)
12932{
026331c4 12933 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12934 genl_unregister_family(&nl80211_fam);
12935}
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