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mac80211: remove doubled semicolon
[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 },
55682965
JB		 400};
401
e31b8213 402/* policy for the key attributes */
b54452b0 403static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 404 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 405 [NL80211_KEY_IDX] = { .type = NLA_U8 },
406 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 407 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 408 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
409 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 410 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 411 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
412};
413
414/* policy for the key default flags */
415static const struct nla_policy
416nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
417 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
418 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 419};
420
ff1b6e69
JB		 421/* policy for WoWLAN attributes */
422static const struct nla_policy
423nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
424 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 428 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e 432 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
8cd4d456 433 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
2a0e047e
JB		 434};
435
436static const struct nla_policy
437nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
438 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
441 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
442 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
443 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
446 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
448 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
449 },
450 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
452 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 453};
454
be29b99a
AK		 455/* policy for coalesce rule attributes */
456static const struct nla_policy
457nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
458 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
459 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
460 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
461};
462
e5497d76
JB		 463/* policy for GTK rekey offload attributes */
464static const struct nla_policy
465nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
466 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
467 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
468 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
469};
470
a1f1c21c
LC		 471static const struct nla_policy
472nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 473 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 474 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 475 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 476};
477
97990a06
JB		 478static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
479 struct netlink_callback *cb,
480 struct cfg80211_registered_device **rdev,
481 struct wireless_dev **wdev)
a043897a 482{
97990a06 483 int err;
a043897a 484
97990a06 485 rtnl_lock();
a043897a 486
97990a06
JB		 487 if (!cb->args[0]) {
488 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
489 nl80211_fam.attrbuf, nl80211_fam.maxattr,
490 nl80211_policy);
491 if (err)
492 goto out_unlock;
67748893 493
97990a06
JB		 494 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
495 nl80211_fam.attrbuf);
496 if (IS_ERR(*wdev)) {
497 err = PTR_ERR(*wdev);
498 goto out_unlock;
499 }
f26cbf40 500 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 501 /* 0 is the first index - add 1 to parse only once */
502 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 503 cb->args[1] = (*wdev)->identifier;
504 } else {
c319d50b
JB		 505 /* subtract the 1 again here */
506 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 507 struct wireless_dev *tmp;
67748893 508
97990a06
JB		 509 if (!wiphy) {
510 err = -ENODEV;
511 goto out_unlock;
512 }
f26cbf40 513 *rdev = wiphy_to_rdev(wiphy);
97990a06 514 *wdev = NULL;
67748893 515
97990a06
JB		 516 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
517 if (tmp->identifier == cb->args[1]) {
518 *wdev = tmp;
519 break;
520 }
521 }
67748893 522
97990a06
JB		 523 if (!*wdev) {
524 err = -ENODEV;
525 goto out_unlock;
526 }
67748893
JB		 527 }
528
67748893 529 return 0;
97990a06 530 out_unlock:
67748893
JB		 531 rtnl_unlock();
532 return err;
533}
534
97990a06 535static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 536{
67748893
JB		 537 rtnl_unlock();
538}
539
f4a11bb0
JB		 540/* IE validation */
541static bool is_valid_ie_attr(const struct nlattr *attr)
542{
543 const u8 *pos;
544 int len;
545
546 if (!attr)
547 return true;
548
549 pos = nla_data(attr);
550 len = nla_len(attr);
551
552 while (len) {
553 u8 elemlen;
554
555 if (len < 2)
556 return false;
557 len -= 2;
558
559 elemlen = pos[1];
560 if (elemlen > len)
561 return false;
562
563 len -= elemlen;
564 pos += 2 + elemlen;
565 }
566
567 return true;
568}
569
55682965 570/* message building helper */
15e47304 571static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 572 int flags, u8 cmd)
573{
574 /* since there is no private header just add the generic one */
15e47304 575 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 576}
577
5dab3b8a 578static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 579 struct ieee80211_channel *chan,
580 bool large)
5dab3b8a 581{
ea077c1c
RL		 582 /* Some channels must be completely excluded from the
583 * list to protect old user-space tools from breaking
584 */
585 if (!large && chan->flags &
586 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
587 return 0;
588
9360ffd1
DM		 589 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
590 chan->center_freq))
591 goto nla_put_failure;
5dab3b8a 592
9360ffd1
DM		 593 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
594 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
595 goto nla_put_failure;
8fe02e16
LR		 596 if (chan->flags & IEEE80211_CHAN_NO_IR) {
597 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
598 goto nla_put_failure;
599 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
600 goto nla_put_failure;
601 }
cdc89b97
JB		 602 if (chan->flags & IEEE80211_CHAN_RADAR) {
603 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
604 goto nla_put_failure;
605 if (large) {
606 u32 time;
607
608 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
609
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
611 chan->dfs_state))
612 goto nla_put_failure;
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
614 time))
615 goto nla_put_failure;
089027e5
JD		 616 if (nla_put_u32(msg,
617 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
618 chan->dfs_cac_ms))
619 goto nla_put_failure;
cdc89b97
JB		 620 }
621 }
5dab3b8a 622
fe1abafd
JB		 623 if (large) {
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
635 goto nla_put_failure;
570dbde1
DS		 636 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
638 goto nla_put_failure;
639 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
641 goto nla_put_failure;
ea077c1c
RL		 642 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
644 goto nla_put_failure;
645 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
646 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
647 goto nla_put_failure;
fe1abafd
JB		 648 }
649
9360ffd1
DM		 650 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
651 DBM_TO_MBM(chan->max_power)))
652 goto nla_put_failure;
5dab3b8a
LR		 653
654 return 0;
655
656 nla_put_failure:
657 return -ENOBUFS;
658}
659
55682965
JB		 660/* netlink command implementations */
661
b9454e83
JB		 662struct key_parse {
663 struct key_params p;
664 int idx;
e31b8213 665 int type;
b9454e83 666 bool def, defmgmt;
dbd2fd65 667 bool def_uni, def_multi;
b9454e83
JB		 668};
669
670static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
671{
672 struct nlattr *tb[NL80211_KEY_MAX + 1];
673 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
674 nl80211_key_policy);
675 if (err)
676 return err;
677
678 k->def = !!tb[NL80211_KEY_DEFAULT];
679 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
680
dbd2fd65
JB		 681 if (k->def) {
682 k->def_uni = true;
683 k->def_multi = true;
684 }
685 if (k->defmgmt)
686 k->def_multi = true;
687
b9454e83
JB		 688 if (tb[NL80211_KEY_IDX])
689 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
690
691 if (tb[NL80211_KEY_DATA]) {
692 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
693 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
694 }
695
696 if (tb[NL80211_KEY_SEQ]) {
697 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
698 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
699 }
700
701 if (tb[NL80211_KEY_CIPHER])
702 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
703
e31b8213
JB		 704 if (tb[NL80211_KEY_TYPE]) {
705 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
706 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
707 return -EINVAL;
708 }
709
dbd2fd65
JB		 710 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
711 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 712 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
713 tb[NL80211_KEY_DEFAULT_TYPES],
714 nl80211_key_default_policy);
dbd2fd65
JB		 715 if (err)
716 return err;
717
718 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
719 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
720 }
721
b9454e83
JB		 722 return 0;
723}
724
725static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
726{
727 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
728 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
729 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
730 }
731
732 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
733 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
734 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
735 }
736
737 if (info->attrs[NL80211_ATTR_KEY_IDX])
738 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
739
740 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
741 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
742
743 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
744 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
745
dbd2fd65
JB		 746 if (k->def) {
747 k->def_uni = true;
748 k->def_multi = true;
749 }
750 if (k->defmgmt)
751 k->def_multi = true;
752
e31b8213
JB		 753 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
754 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
755 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
756 return -EINVAL;
757 }
758
dbd2fd65
JB		 759 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
760 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
761 int err = nla_parse_nested(
762 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
763 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
764 nl80211_key_default_policy);
765 if (err)
766 return err;
767
768 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
769 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
770 }
771
b9454e83
JB		 772 return 0;
773}
774
775static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
776{
777 int err;
778
779 memset(k, 0, sizeof(*k));
780 k->idx = -1;
e31b8213 781 k->type = -1;
b9454e83
JB		 782
783 if (info->attrs[NL80211_ATTR_KEY])
784 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
785 else
786 err = nl80211_parse_key_old(info, k);
787
788 if (err)
789 return err;
790
791 if (k->def && k->defmgmt)
792 return -EINVAL;
793
dbd2fd65
JB		 794 if (k->defmgmt) {
795 if (k->def_uni || !k->def_multi)
796 return -EINVAL;
797 }
798
b9454e83
JB		 799 if (k->idx != -1) {
800 if (k->defmgmt) {
801 if (k->idx < 4 || k->idx > 5)
802 return -EINVAL;
803 } else if (k->def) {
804 if (k->idx < 0 || k->idx > 3)
805 return -EINVAL;
806 } else {
807 if (k->idx < 0 || k->idx > 5)
808 return -EINVAL;
809 }
810 }
811
812 return 0;
813}
814
fffd0934
JB		 815static struct cfg80211_cached_keys *
816nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 817 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 818{
819 struct key_parse parse;
820 struct nlattr *key;
821 struct cfg80211_cached_keys *result;
822 int rem, err, def = 0;
823
824 result = kzalloc(sizeof(*result), GFP_KERNEL);
825 if (!result)
826 return ERR_PTR(-ENOMEM);
827
828 result->def = -1;
829 result->defmgmt = -1;
830
831 nla_for_each_nested(key, keys, rem) {
832 memset(&parse, 0, sizeof(parse));
833 parse.idx = -1;
834
835 err = nl80211_parse_key_new(key, &parse);
836 if (err)
837 goto error;
838 err = -EINVAL;
839 if (!parse.p.key)
840 goto error;
841 if (parse.idx < 0 || parse.idx > 4)
842 goto error;
843 if (parse.def) {
844 if (def)
845 goto error;
846 def = 1;
847 result->def = parse.idx;
dbd2fd65
JB		 848 if (!parse.def_uni || !parse.def_multi)
849 goto error;
fffd0934
JB		 850 } else if (parse.defmgmt)
851 goto error;
852 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 853 parse.idx, false, NULL);
fffd0934
JB		 854 if (err)
855 goto error;
856 result->params[parse.idx].cipher = parse.p.cipher;
857 result->params[parse.idx].key_len = parse.p.key_len;
858 result->params[parse.idx].key = result->data[parse.idx];
859 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 860
861 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
862 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
863 if (no_ht)
864 *no_ht = true;
865 }
fffd0934
JB		 866 }
867
868 return result;
869 error:
870 kfree(result);
871 return ERR_PTR(err);
872}
873
874static int nl80211_key_allowed(struct wireless_dev *wdev)
875{
876 ASSERT_WDEV_LOCK(wdev);
877
fffd0934
JB		 878 switch (wdev->iftype) {
879 case NL80211_IFTYPE_AP:
880 case NL80211_IFTYPE_AP_VLAN:
074ac8df 881 case NL80211_IFTYPE_P2P_GO:
ff973af7 882 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 883 break;
884 case NL80211_IFTYPE_ADHOC:
fffd0934 885 case NL80211_IFTYPE_STATION:
074ac8df 886 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 887 if (!wdev->current_bss)
fffd0934
JB		 888 return -ENOLINK;
889 break;
de4fcbad 890 case NL80211_IFTYPE_UNSPECIFIED:
6e0bd6c3 891 case NL80211_IFTYPE_OCB:
de4fcbad
JB		 892 case NL80211_IFTYPE_MONITOR:
893 case NL80211_IFTYPE_P2P_DEVICE:
894 case NL80211_IFTYPE_WDS:
895 case NUM_NL80211_IFTYPES:
fffd0934
JB		 896 return -EINVAL;
897 }
898
899 return 0;
900}
901
664834de
JM		 902static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
903 struct nlattr *tb)
904{
905 struct ieee80211_channel *chan;
906
907 if (tb == NULL)
908 return NULL;
909 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
910 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
911 return NULL;
912 return chan;
913}
914
7527a782
JB		 915static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
916{
917 struct nlattr *nl_modes = nla_nest_start(msg, attr);
918 int i;
919
920 if (!nl_modes)
921 goto nla_put_failure;
922
923 i = 0;
924 while (ifmodes) {
9360ffd1
DM		 925 if ((ifmodes & 1) && nla_put_flag(msg, i))
926 goto nla_put_failure;
7527a782
JB		 927 ifmodes >>= 1;
928 i++;
929 }
930
931 nla_nest_end(msg, nl_modes);
932 return 0;
933
934nla_put_failure:
935 return -ENOBUFS;
936}
937
938static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 939 struct sk_buff *msg,
940 bool large)
7527a782
JB		 941{
942 struct nlattr *nl_combis;
943 int i, j;
944
945 nl_combis = nla_nest_start(msg,
946 NL80211_ATTR_INTERFACE_COMBINATIONS);
947 if (!nl_combis)
948 goto nla_put_failure;
949
950 for (i = 0; i < wiphy->n_iface_combinations; i++) {
951 const struct ieee80211_iface_combination *c;
952 struct nlattr *nl_combi, *nl_limits;
953
954 c = &wiphy->iface_combinations[i];
955
956 nl_combi = nla_nest_start(msg, i + 1);
957 if (!nl_combi)
958 goto nla_put_failure;
959
960 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
961 if (!nl_limits)
962 goto nla_put_failure;
963
964 for (j = 0; j < c->n_limits; j++) {
965 struct nlattr *nl_limit;
966
967 nl_limit = nla_nest_start(msg, j + 1);
968 if (!nl_limit)
969 goto nla_put_failure;
9360ffd1
DM		 970 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
971 c->limits[j].max))
972 goto nla_put_failure;
7527a782
JB		 973 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
974 c->limits[j].types))
975 goto nla_put_failure;
976 nla_nest_end(msg, nl_limit);
977 }
978
979 nla_nest_end(msg, nl_limits);
980
9360ffd1
DM		 981 if (c->beacon_int_infra_match &&
982 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
983 goto nla_put_failure;
984 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
985 c->num_different_channels) ||
986 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
987 c->max_interfaces))
988 goto nla_put_failure;
cdc89b97 989 if (large &&
8c48b50a
FF		 990 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
991 c->radar_detect_widths) ||
992 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
993 c->radar_detect_regions)))
cdc89b97 994 goto nla_put_failure;
7527a782
JB		 995
996 nla_nest_end(msg, nl_combi);
997 }
998
999 nla_nest_end(msg, nl_combis);
1000
1001 return 0;
1002nla_put_failure:
1003 return -ENOBUFS;
1004}
1005
3713b4e3 1006#ifdef CONFIG_PM
b56cf720
JB		 1007static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1008 struct sk_buff *msg)
1009{
964dc9e2 1010 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1011 struct nlattr *nl_tcp;
1012
1013 if (!tcp)
1014 return 0;
1015
1016 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1017 if (!nl_tcp)
1018 return -ENOBUFS;
1019
1020 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1021 tcp->data_payload_max))
1022 return -ENOBUFS;
1023
1024 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1025 tcp->data_payload_max))
1026 return -ENOBUFS;
1027
1028 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1029 return -ENOBUFS;
1030
1031 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1032 sizeof(*tcp->tok), tcp->tok))
1033 return -ENOBUFS;
1034
1035 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1036 tcp->data_interval_max))
1037 return -ENOBUFS;
1038
1039 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1040 tcp->wake_payload_max))
1041 return -ENOBUFS;
1042
1043 nla_nest_end(msg, nl_tcp);
1044 return 0;
1045}
1046
3713b4e3 1047static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1048 struct cfg80211_registered_device *rdev,
b56cf720 1049 bool large)
55682965 1050{
3713b4e3 1051 struct nlattr *nl_wowlan;
55682965 1052
1b8ec87a 1053 if (!rdev->wiphy.wowlan)
3713b4e3 1054 return 0;
55682965 1055
3713b4e3
JB		 1056 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1057 if (!nl_wowlan)
1058 return -ENOBUFS;
9360ffd1 1059
1b8ec87a 1060 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1068 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1070 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1076 return -ENOBUFS;
9360ffd1 1077
1b8ec87a 1078 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1079 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1080 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1081 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1082 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1083 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1084 };
9360ffd1 1085
3713b4e3
JB		 1086 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1087 sizeof(pat), &pat))
1088 return -ENOBUFS;
1089 }
9360ffd1 1090
75453ccb
LC		 1091 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1092 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1093 rdev->wiphy.wowlan->max_nd_match_sets))
1094 return -ENOBUFS;
1095
1b8ec87a 1096 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1097 return -ENOBUFS;
1098
8cd4d456
LC		 1099 /* TODO: send wowlan net detect */
1100
3713b4e3 1101 nla_nest_end(msg, nl_wowlan);
9360ffd1 1102
3713b4e3
JB		 1103 return 0;
1104}
1105#endif
9360ffd1 1106
be29b99a 1107static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1108 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1109{
1110 struct nl80211_coalesce_rule_support rule;
1111
1b8ec87a 1112 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1113 return 0;
1114
1b8ec87a
ZG		 1115 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1116 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1117 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1118 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1119 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1120 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1121
1122 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1123 return -ENOBUFS;
1124
1125 return 0;
1126}
1127
3713b4e3
JB		 1128static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1129 struct ieee80211_supported_band *sband)
1130{
1131 struct nlattr *nl_rates, *nl_rate;
1132 struct ieee80211_rate *rate;
1133 int i;
87bbbe22 1134
3713b4e3
JB		 1135 /* add HT info */
1136 if (sband->ht_cap.ht_supported &&
1137 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1138 sizeof(sband->ht_cap.mcs),
1139 &sband->ht_cap.mcs) ||
1140 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1141 sband->ht_cap.cap) ||
1142 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1143 sband->ht_cap.ampdu_factor) ||
1144 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1145 sband->ht_cap.ampdu_density)))
1146 return -ENOBUFS;
afe0cbf8 1147
3713b4e3
JB		 1148 /* add VHT info */
1149 if (sband->vht_cap.vht_supported &&
1150 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1151 sizeof(sband->vht_cap.vht_mcs),
1152 &sband->vht_cap.vht_mcs) ||
1153 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1154 sband->vht_cap.cap)))
1155 return -ENOBUFS;
f59ac048 1156
3713b4e3
JB		 1157 /* add bitrates */
1158 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1159 if (!nl_rates)
1160 return -ENOBUFS;
ee688b00 1161
3713b4e3
JB		 1162 for (i = 0; i < sband->n_bitrates; i++) {
1163 nl_rate = nla_nest_start(msg, i);
1164 if (!nl_rate)
1165 return -ENOBUFS;
ee688b00 1166
3713b4e3
JB		 1167 rate = &sband->bitrates[i];
1168 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1169 rate->bitrate))
1170 return -ENOBUFS;
1171 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1172 nla_put_flag(msg,
1173 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1174 return -ENOBUFS;
ee688b00 1175
3713b4e3
JB		 1176 nla_nest_end(msg, nl_rate);
1177 }
d51626df 1178
3713b4e3 1179 nla_nest_end(msg, nl_rates);
bf0c111e 1180
3713b4e3
JB		 1181 return 0;
1182}
ee688b00 1183
3713b4e3
JB		 1184static int
1185nl80211_send_mgmt_stypes(struct sk_buff *msg,
1186 const struct ieee80211_txrx_stypes *mgmt_stypes)
1187{
1188 u16 stypes;
1189 struct nlattr *nl_ftypes, *nl_ifs;
1190 enum nl80211_iftype ift;
1191 int i;
ee688b00 1192
3713b4e3
JB		 1193 if (!mgmt_stypes)
1194 return 0;
5dab3b8a 1195
3713b4e3
JB		 1196 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1197 if (!nl_ifs)
1198 return -ENOBUFS;
e2f367f2 1199
3713b4e3
JB		 1200 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1201 nl_ftypes = nla_nest_start(msg, ift);
1202 if (!nl_ftypes)
1203 return -ENOBUFS;
1204 i = 0;
1205 stypes = mgmt_stypes[ift].tx;
1206 while (stypes) {
1207 if ((stypes & 1) &&
1208 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1209 (i << 4) | IEEE80211_FTYPE_MGMT))
1210 return -ENOBUFS;
1211 stypes >>= 1;
1212 i++;
ee688b00 1213 }
3713b4e3
JB		 1214 nla_nest_end(msg, nl_ftypes);
1215 }
ee688b00 1216
3713b4e3 1217 nla_nest_end(msg, nl_ifs);
ee688b00 1218
3713b4e3
JB		 1219 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1220 if (!nl_ifs)
1221 return -ENOBUFS;
ee688b00 1222
3713b4e3
JB		 1223 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1224 nl_ftypes = nla_nest_start(msg, ift);
1225 if (!nl_ftypes)
1226 return -ENOBUFS;
1227 i = 0;
1228 stypes = mgmt_stypes[ift].rx;
1229 while (stypes) {
1230 if ((stypes & 1) &&
1231 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1232 (i << 4) | IEEE80211_FTYPE_MGMT))
1233 return -ENOBUFS;
1234 stypes >>= 1;
1235 i++;
1236 }
1237 nla_nest_end(msg, nl_ftypes);
1238 }
1239 nla_nest_end(msg, nl_ifs);
ee688b00 1240
3713b4e3
JB		 1241 return 0;
1242}
ee688b00 1243
86e8cf98
JB		 1244struct nl80211_dump_wiphy_state {
1245 s64 filter_wiphy;
1246 long start;
1247 long split_start, band_start, chan_start;
1248 bool split;
1249};
1250
1b8ec87a 1251static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1252 enum nl80211_commands cmd,
3713b4e3 1253 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1254 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1255{
1256 void *hdr;
1257 struct nlattr *nl_bands, *nl_band;
1258 struct nlattr *nl_freqs, *nl_freq;
1259 struct nlattr *nl_cmds;
1260 enum ieee80211_band band;
1261 struct ieee80211_channel *chan;
1262 int i;
1263 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1264 rdev->wiphy.mgmt_stypes;
fe1abafd 1265 u32 features;
ee688b00 1266
3bb20556 1267 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1268 if (!hdr)
1269 return -ENOBUFS;
ee688b00 1270
86e8cf98
JB		 1271 if (WARN_ON(!state))
1272 return -EINVAL;
ee688b00 1273
1b8ec87a 1274 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1275 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1276 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1277 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1278 cfg80211_rdev_list_generation))
8fdc621d
JB		 1279 goto nla_put_failure;
1280
3bb20556
JB		 1281 if (cmd != NL80211_CMD_NEW_WIPHY)
1282 goto finish;
1283
86e8cf98 1284 switch (state->split_start) {
3713b4e3
JB		 1285 case 0:
1286 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1287 rdev->wiphy.retry_short) ||
3713b4e3 1288 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1289 rdev->wiphy.retry_long) ||
3713b4e3 1290 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1291 rdev->wiphy.frag_threshold) ||
3713b4e3 1292 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1293 rdev->wiphy.rts_threshold) ||
3713b4e3 1294 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1295 rdev->wiphy.coverage_class) ||
3713b4e3 1296 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1297 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1298 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1299 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1300 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1301 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1302 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1303 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1304 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1305 rdev->wiphy.max_match_sets))
9360ffd1 1306 goto nla_put_failure;
3713b4e3 1307
1b8ec87a 1308 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1309 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1310 goto nla_put_failure;
1b8ec87a 1311 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1312 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1313 goto nla_put_failure;
1b8ec87a 1314 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1315 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1316 goto nla_put_failure;
1b8ec87a 1317 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1318 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1319 goto nla_put_failure;
1b8ec87a 1320 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1321 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1322 goto nla_put_failure;
1b8ec87a 1323 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1324 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1325 goto nla_put_failure;
86e8cf98
JB		 1326 state->split_start++;
1327 if (state->split)
3713b4e3
JB		 1328 break;
1329 case 1:
1330 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1331 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1332 rdev->wiphy.cipher_suites))
3713b4e3 1333 goto nla_put_failure;
4745fc09 1334
3713b4e3 1335 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1336 rdev->wiphy.max_num_pmkids))
3713b4e3 1337 goto nla_put_failure;
b23aa676 1338
1b8ec87a 1339 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1340 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1341 goto nla_put_failure;
b23aa676 1342
3713b4e3 1343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1344 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1345 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1346 rdev->wiphy.available_antennas_rx))
9360ffd1 1347 goto nla_put_failure;
b23aa676 1348
1b8ec87a 1349 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1350 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1351 rdev->wiphy.probe_resp_offload))
3713b4e3 1352 goto nla_put_failure;
8fdc621d 1353
1b8ec87a
ZG		 1354 if ((rdev->wiphy.available_antennas_tx ||
1355 rdev->wiphy.available_antennas_rx) &&
1356 rdev->ops->get_antenna) {
3713b4e3
JB		 1357 u32 tx_ant = 0, rx_ant = 0;
1358 int res;
1b8ec87a 1359 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1360 if (!res) {
1361 if (nla_put_u32(msg,
1362 NL80211_ATTR_WIPHY_ANTENNA_TX,
1363 tx_ant) ||
1364 nla_put_u32(msg,
1365 NL80211_ATTR_WIPHY_ANTENNA_RX,
1366 rx_ant))
1367 goto nla_put_failure;
1368 }
1369 }
a293911d 1370
86e8cf98
JB		 1371 state->split_start++;
1372 if (state->split)
3713b4e3
JB		 1373 break;
1374 case 2:
1375 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1376 rdev->wiphy.interface_modes))
3713b4e3 1377 goto nla_put_failure;
86e8cf98
JB		 1378 state->split_start++;
1379 if (state->split)
3713b4e3
JB		 1380 break;
1381 case 3:
1382 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1383 if (!nl_bands)
1384 goto nla_put_failure;
f7ca38df 1385
86e8cf98
JB		 1386 for (band = state->band_start;
1387 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1388 struct ieee80211_supported_band *sband;
2e161f78 1389
1b8ec87a 1390 sband = rdev->wiphy.bands[band];
2e161f78 1391
3713b4e3
JB		 1392 if (!sband)
1393 continue;
1394
1395 nl_band = nla_nest_start(msg, band);
1396 if (!nl_band)
2e161f78 1397 goto nla_put_failure;
3713b4e3 1398
86e8cf98 1399 switch (state->chan_start) {
3713b4e3
JB		 1400 case 0:
1401 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1402 goto nla_put_failure;
86e8cf98
JB		 1403 state->chan_start++;
1404 if (state->split)
3713b4e3
JB		 1405 break;
1406 default:
1407 /* add frequencies */
1408 nl_freqs = nla_nest_start(
1409 msg, NL80211_BAND_ATTR_FREQS);
1410 if (!nl_freqs)
1411 goto nla_put_failure;
1412
86e8cf98 1413 for (i = state->chan_start - 1;
3713b4e3
JB		 1414 i < sband->n_channels;
1415 i++) {
1416 nl_freq = nla_nest_start(msg, i);
1417 if (!nl_freq)
1418 goto nla_put_failure;
1419
1420 chan = &sband->channels[i];
1421
86e8cf98
JB		 1422 if (nl80211_msg_put_channel(
1423 msg, chan,
1424 state->split))
3713b4e3
JB		 1425 goto nla_put_failure;
1426
1427 nla_nest_end(msg, nl_freq);
86e8cf98 1428 if (state->split)
3713b4e3
JB		 1429 break;
1430 }
1431 if (i < sband->n_channels)
86e8cf98 1432 state->chan_start = i + 2;
3713b4e3 1433 else
86e8cf98 1434 state->chan_start = 0;
3713b4e3
JB		 1435 nla_nest_end(msg, nl_freqs);
1436 }
1437
1438 nla_nest_end(msg, nl_band);
1439
86e8cf98 1440 if (state->split) {
3713b4e3 1441 /* start again here */
86e8cf98 1442 if (state->chan_start)
3713b4e3
JB		 1443 band--;
1444 break;
2e161f78 1445 }
2e161f78 1446 }
3713b4e3 1447 nla_nest_end(msg, nl_bands);
2e161f78 1448
3713b4e3 1449 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1450 state->band_start = band + 1;
3713b4e3 1451 else
86e8cf98 1452 state->band_start = 0;
74b70a4e 1453
3713b4e3 1454 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1455 if (state->band_start == 0 && state->chan_start == 0)
1456 state->split_start++;
1457 if (state->split)
3713b4e3
JB		 1458 break;
1459 case 4:
1460 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1461 if (!nl_cmds)
2e161f78
JB		 1462 goto nla_put_failure;
1463
3713b4e3
JB		 1464 i = 0;
1465#define CMD(op, n) \
1466 do { \
1b8ec87a 1467 if (rdev->ops->op) { \
3713b4e3
JB		 1468 i++; \
1469 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1470 goto nla_put_failure; \
1471 } \
1472 } while (0)
1473
1474 CMD(add_virtual_intf, NEW_INTERFACE);
1475 CMD(change_virtual_intf, SET_INTERFACE);
1476 CMD(add_key, NEW_KEY);
1477 CMD(start_ap, START_AP);
1478 CMD(add_station, NEW_STATION);
1479 CMD(add_mpath, NEW_MPATH);
1480 CMD(update_mesh_config, SET_MESH_CONFIG);
1481 CMD(change_bss, SET_BSS);
1482 CMD(auth, AUTHENTICATE);
1483 CMD(assoc, ASSOCIATE);
1484 CMD(deauth, DEAUTHENTICATE);
1485 CMD(disassoc, DISASSOCIATE);
1486 CMD(join_ibss, JOIN_IBSS);
1487 CMD(join_mesh, JOIN_MESH);
1488 CMD(set_pmksa, SET_PMKSA);
1489 CMD(del_pmksa, DEL_PMKSA);
1490 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1491 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1492 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1493 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1494 CMD(mgmt_tx, FRAME);
1495 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1496 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1497 i++;
1498 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1499 goto nla_put_failure;
2e161f78 1500 }
1b8ec87a
ZG		 1501 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1502 rdev->ops->join_mesh) {
3713b4e3
JB		 1503 i++;
1504 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1505 goto nla_put_failure;
1506 }
1507 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1508 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1509 CMD(tdls_mgmt, TDLS_MGMT);
1510 CMD(tdls_oper, TDLS_OPER);
1511 }
1b8ec87a 1512 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1513 CMD(sched_scan_start, START_SCHED_SCAN);
1514 CMD(probe_client, PROBE_CLIENT);
1515 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1516 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1517 i++;
1518 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1519 goto nla_put_failure;
1520 }
1521 CMD(start_p2p_device, START_P2P_DEVICE);
1522 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1523#ifdef CONFIG_NL80211_TESTMODE
1524 CMD(testmode_cmd, TESTMODE);
1525#endif
86e8cf98 1526 if (state->split) {
5de17984
AS		 1527 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1528 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1529 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1530 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1531 CMD(set_qos_map, SET_QOS_MAP);
723e73ac
JB		 1532 if (rdev->wiphy.features &
1533 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
960d01ac 1534 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1535 }
02df00eb 1536 /* add into the if now */
3713b4e3 1537#undef CMD
ff1b6e69 1538
1b8ec87a 1539 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1540 i++;
1541 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1542 goto nla_put_failure;
ff1b6e69
JB		 1543 }
1544
1b8ec87a 1545 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1546 i++;
1547 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1548 goto nla_put_failure;
1549 }
1550
1551 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1552 state->split_start++;
1553 if (state->split)
3713b4e3
JB		 1554 break;
1555 case 5:
1b8ec87a
ZG		 1556 if (rdev->ops->remain_on_channel &&
1557 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1558 nla_put_u32(msg,
1559 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1560 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1561 goto nla_put_failure;
1562
1b8ec87a 1563 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1564 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1565 goto nla_put_failure;
1566
1567 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1568 goto nla_put_failure;
86e8cf98
JB		 1569 state->split_start++;
1570 if (state->split)
3713b4e3
JB		 1571 break;
1572 case 6:
1573#ifdef CONFIG_PM
1b8ec87a 1574 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1575 goto nla_put_failure;
86e8cf98
JB		 1576 state->split_start++;
1577 if (state->split)
3713b4e3
JB		 1578 break;
1579#else
86e8cf98 1580 state->split_start++;
dfb89c56 1581#endif
3713b4e3
JB		 1582 case 7:
1583 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1584 rdev->wiphy.software_iftypes))
3713b4e3 1585 goto nla_put_failure;
ff1b6e69 1586
1b8ec87a 1587 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1588 state->split))
3713b4e3 1589 goto nla_put_failure;
7527a782 1590
86e8cf98
JB		 1591 state->split_start++;
1592 if (state->split)
3713b4e3
JB		 1593 break;
1594 case 8:
1b8ec87a 1595 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1596 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1597 rdev->wiphy.ap_sme_capa))
3713b4e3 1598 goto nla_put_failure;
7527a782 1599
1b8ec87a 1600 features = rdev->wiphy.features;
fe1abafd
JB		 1601 /*
1602 * We can only add the per-channel limit information if the
1603 * dump is split, otherwise it makes it too big. Therefore
1604 * only advertise it in that case.
1605 */
86e8cf98 1606 if (state->split)
fe1abafd
JB		 1607 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1608 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1609 goto nla_put_failure;
562a7480 1610
1b8ec87a 1611 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1612 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1613 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1614 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1615 goto nla_put_failure;
1f074bd8 1616
1b8ec87a
ZG		 1617 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1618 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1619 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1620 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1621 goto nla_put_failure;
7e7c8926 1622
3713b4e3
JB		 1623 /*
1624 * Any information below this point is only available to
1625 * applications that can deal with it being split. This
1626 * helps ensure that newly added capabilities don't break
1627 * older tools by overrunning their buffers.
1628 *
1629 * We still increment split_start so that in the split
1630 * case we'll continue with more data in the next round,
1631 * but break unconditionally so unsplit data stops here.
1632 */
86e8cf98 1633 state->split_start++;
3713b4e3
JB		 1634 break;
1635 case 9:
1b8ec87a 1636 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1637 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1638 rdev->wiphy.extended_capabilities_len,
1639 rdev->wiphy.extended_capabilities) ||
fe1abafd 1640 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1641 rdev->wiphy.extended_capabilities_len,
1642 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1643 goto nla_put_failure;
a50df0c4 1644
1b8ec87a 1645 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1646 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1647 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1648 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1649 goto nla_put_failure;
1650
be29b99a
AK		 1651 state->split_start++;
1652 break;
1653 case 10:
1b8ec87a 1654 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1655 goto nla_put_failure;
1656
1b8ec87a 1657 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1658 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1659 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1660 goto nla_put_failure;
b43504cf 1661
1b8ec87a 1662 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1663 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1664 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1665 goto nla_put_failure;
1666
ad7e718c
JB		 1667 state->split_start++;
1668 break;
1669 case 11:
1b8ec87a 1670 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1671 const struct nl80211_vendor_cmd_info *info;
1672 struct nlattr *nested;
1673
1674 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1675 if (!nested)
1676 goto nla_put_failure;
1677
1b8ec87a
ZG		 1678 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1679 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1680 if (nla_put(msg, i + 1, sizeof(*info), info))
1681 goto nla_put_failure;
1682 }
1683 nla_nest_end(msg, nested);
1684 }
1685
1b8ec87a 1686 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1687 const struct nl80211_vendor_cmd_info *info;
1688 struct nlattr *nested;
ad7e718c 1689
567ffc35
JB		 1690 nested = nla_nest_start(msg,
1691 NL80211_ATTR_VENDOR_EVENTS);
1692 if (!nested)
ad7e718c 1693 goto nla_put_failure;
567ffc35 1694
1b8ec87a
ZG		 1695 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1696 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1697 if (nla_put(msg, i + 1, sizeof(*info), info))
1698 goto nla_put_failure;
1699 }
1700 nla_nest_end(msg, nested);
1701 }
9a774c78
AO		 1702 state->split_start++;
1703 break;
1704 case 12:
1705 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1706 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1707 rdev->wiphy.max_num_csa_counters))
1708 goto nla_put_failure;
01e0daa4 1709
1bdd716c
AN		 1710 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1711 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1712 goto nla_put_failure;
1713
d75bb06b
GKS		 1714 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1715 sizeof(rdev->wiphy.ext_features),
1716 rdev->wiphy.ext_features))
1717 goto nla_put_failure;
1718
3713b4e3 1719 /* done */
86e8cf98 1720 state->split_start = 0;
3713b4e3
JB		 1721 break;
1722 }
3bb20556 1723 finish:
55682965
JB		 1724 return genlmsg_end(msg, hdr);
1725
1726 nla_put_failure:
bc3ed28c
TG		 1727 genlmsg_cancel(msg, hdr);
1728 return -EMSGSIZE;
55682965
JB		 1729}
1730
86e8cf98
JB		 1731static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1732 struct netlink_callback *cb,
1733 struct nl80211_dump_wiphy_state *state)
1734{
1735 struct nlattr **tb = nl80211_fam.attrbuf;
1736 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1737 tb, nl80211_fam.maxattr, nl80211_policy);
1738 /* ignore parse errors for backward compatibility */
1739 if (ret)
1740 return 0;
1741
1742 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1743 if (tb[NL80211_ATTR_WIPHY])
1744 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1745 if (tb[NL80211_ATTR_WDEV])
1746 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1747 if (tb[NL80211_ATTR_IFINDEX]) {
1748 struct net_device *netdev;
1749 struct cfg80211_registered_device *rdev;
1750 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1751
7f2b8562 1752 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1753 if (!netdev)
1754 return -ENODEV;
1755 if (netdev->ieee80211_ptr) {
f26cbf40 1756 rdev = wiphy_to_rdev(
86e8cf98
JB		 1757 netdev->ieee80211_ptr->wiphy);
1758 state->filter_wiphy = rdev->wiphy_idx;
1759 }
86e8cf98
JB		 1760 }
1761
1762 return 0;
1763}
1764
55682965
JB		 1765static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1766{
645e77de 1767 int idx = 0, ret;
86e8cf98 1768 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1769 struct cfg80211_registered_device *rdev;
3a5a423b 1770
5fe231e8 1771 rtnl_lock();
86e8cf98
JB		 1772 if (!state) {
1773 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1774 if (!state) {
1775 rtnl_unlock();
86e8cf98 1776 return -ENOMEM;
3713b4e3 1777 }
86e8cf98
JB		 1778 state->filter_wiphy = -1;
1779 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1780 if (ret) {
1781 kfree(state);
1782 rtnl_unlock();
1783 return ret;
3713b4e3 1784 }
86e8cf98 1785 cb->args[0] = (long)state;
3713b4e3
JB		 1786 }
1787
1b8ec87a
ZG		 1788 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1789 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1790 continue;
86e8cf98 1791 if (++idx <= state->start)
55682965 1792 continue;
86e8cf98 1793 if (state->filter_wiphy != -1 &&
1b8ec87a 1794 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1795 continue;
1796 /* attempt to fit multiple wiphy data chunks into the skb */
1797 do {
3bb20556
JB		 1798 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1799 skb,
3713b4e3
JB		 1800 NETLINK_CB(cb->skb).portid,
1801 cb->nlh->nlmsg_seq,
86e8cf98 1802 NLM_F_MULTI, state);
3713b4e3
JB		 1803 if (ret < 0) {
1804 /*
1805 * If sending the wiphy data didn't fit (ENOBUFS
1806 * or EMSGSIZE returned), this SKB is still
1807 * empty (so it's not too big because another
1808 * wiphy dataset is already in the skb) and
1809 * we've not tried to adjust the dump allocation
1810 * yet ... then adjust the alloc size to be
1811 * bigger, and return 1 but with the empty skb.
1812 * This results in an empty message being RX'ed
1813 * in userspace, but that is ignored.
1814 *
1815 * We can then retry with the larger buffer.
1816 */
1817 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1818 !skb->len && !state->split &&
3713b4e3
JB		 1819 cb->min_dump_alloc < 4096) {
1820 cb->min_dump_alloc = 4096;
f12cb289 1821 state->split_start = 0;
d98cae64 1822 rtnl_unlock();
3713b4e3
JB		 1823 return 1;
1824 }
1825 idx--;
1826 break;
645e77de 1827 }
86e8cf98 1828 } while (state->split_start > 0);
3713b4e3 1829 break;
55682965 1830 }
5fe231e8 1831 rtnl_unlock();
55682965 1832
86e8cf98 1833 state->start = idx;
55682965
JB		 1834
1835 return skb->len;
1836}
1837
86e8cf98
JB		 1838static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1839{
1840 kfree((void *)cb->args[0]);
1841 return 0;
1842}
1843
55682965
JB		 1844static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1845{
1846 struct sk_buff *msg;
1b8ec87a 1847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1848 struct nl80211_dump_wiphy_state state = {};
55682965 1849
645e77de 1850 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1851 if (!msg)
4c476991 1852 return -ENOMEM;
55682965 1853
3bb20556
JB		 1854 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1855 info->snd_portid, info->snd_seq, 0,
86e8cf98 1856 &state) < 0) {
4c476991
JB		 1857 nlmsg_free(msg);
1858 return -ENOBUFS;
1859 }
55682965 1860
134e6375 1861 return genlmsg_reply(msg, info);
55682965
JB		 1862}
1863
31888487
JM		 1864static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1865 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1866 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1867 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1868 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1869 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1870};
1871
1872static int parse_txq_params(struct nlattr *tb[],
1873 struct ieee80211_txq_params *txq_params)
1874{
a3304b0a 1875 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1876 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1877 !tb[NL80211_TXQ_ATTR_AIFS])
1878 return -EINVAL;
1879
a3304b0a 1880 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1881 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1882 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1883 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1884 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1885
a3304b0a
JB		 1886 if (txq_params->ac >= NL80211_NUM_ACS)
1887 return -EINVAL;
1888
31888487
JM		 1889 return 0;
1890}
1891
f444de05
JB		 1892static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1893{
1894 /*
cc1d2806
JB		 1895 * You can only set the channel explicitly for WDS interfaces,
1896 * all others have their channel managed via their respective
1897 * "establish a connection" command (connect, join, ...)
1898 *
1899 * For AP/GO and mesh mode, the channel can be set with the
1900 * channel userspace API, but is only stored and passed to the
1901 * low-level driver when the AP starts or the mesh is joined.
1902 * This is for backward compatibility, userspace can also give
1903 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1904 *
1905 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1906 * whatever else is going on, so they have their own special
1907 * operation to set the monitor channel if possible.
f444de05
JB		 1908 */
1909 return !wdev ||
1910 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1911 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1912 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1913 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1914}
1915
683b6d3b
JB		 1916static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1917 struct genl_info *info,
1918 struct cfg80211_chan_def *chandef)
1919{
dbeca2ea 1920 u32 control_freq;
683b6d3b
JB		 1921
1922 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1923 return -EINVAL;
1924
1925 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1926
1927 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1928 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1929 chandef->center_freq1 = control_freq;
1930 chandef->center_freq2 = 0;
683b6d3b
JB		 1931
1932 /* Primary channel not allowed */
1933 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1934 return -EINVAL;
1935
3d9d1d66
JB		 1936 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1937 enum nl80211_channel_type chantype;
1938
1939 chantype = nla_get_u32(
1940 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1941
1942 switch (chantype) {
1943 case NL80211_CHAN_NO_HT:
1944 case NL80211_CHAN_HT20:
1945 case NL80211_CHAN_HT40PLUS:
1946 case NL80211_CHAN_HT40MINUS:
1947 cfg80211_chandef_create(chandef, chandef->chan,
1948 chantype);
1949 break;
1950 default:
1951 return -EINVAL;
1952 }
1953 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1954 chandef->width =
1955 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1956 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1957 chandef->center_freq1 =
1958 nla_get_u32(
1959 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1960 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1961 chandef->center_freq2 =
1962 nla_get_u32(
1963 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1964 }
1965
9f5e8f6e 1966 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1967 return -EINVAL;
1968
9f5e8f6e
JB		 1969 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1970 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1971 return -EINVAL;
1972
2f301ab2
SW		 1973 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1974 chandef->width == NL80211_CHAN_WIDTH_10) &&
1975 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1976 return -EINVAL;
1977
683b6d3b
JB		 1978 return 0;
1979}
1980
f444de05 1981static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1982 struct net_device *dev,
f444de05
JB		 1983 struct genl_info *info)
1984{
683b6d3b 1985 struct cfg80211_chan_def chandef;
f444de05 1986 int result;
e8c9bd5b 1987 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1988 struct wireless_dev *wdev = NULL;
e8c9bd5b 1989
e16821bc
JM		 1990 if (dev)
1991 wdev = dev->ieee80211_ptr;
f444de05
JB		 1992 if (!nl80211_can_set_dev_channel(wdev))
1993 return -EOPNOTSUPP;
e16821bc
JM		 1994 if (wdev)
1995 iftype = wdev->iftype;
f444de05 1996
683b6d3b
JB		 1997 result = nl80211_parse_chandef(rdev, info, &chandef);
1998 if (result)
1999 return result;
f444de05 2000
e8c9bd5b 2001 switch (iftype) {
aa430da4
JB		 2002 case NL80211_IFTYPE_AP:
2003 case NL80211_IFTYPE_P2P_GO:
174e0cd2 2004 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 2005 result = -EINVAL;
2006 break;
2007 }
e16821bc
JM		 2008 if (wdev->beacon_interval) {
2009 if (!dev || !rdev->ops->set_ap_chanwidth ||
2010 !(rdev->wiphy.features &
2011 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2012 result = -EBUSY;
2013 break;
2014 }
2015
2016 /* Only allow dynamic channel width changes */
2017 if (chandef.chan != wdev->preset_chandef.chan) {
2018 result = -EBUSY;
2019 break;
2020 }
2021 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2022 if (result)
2023 break;
2024 }
683b6d3b 2025 wdev->preset_chandef = chandef;
aa430da4
JB		 2026 result = 0;
2027 break;
cc1d2806 2028 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2029 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2030 break;
e8c9bd5b 2031 case NL80211_IFTYPE_MONITOR:
683b6d3b 2032 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2033 break;
aa430da4 2034 default:
e8c9bd5b 2035 result = -EINVAL;
f444de05 2036 }
f444de05
JB		 2037
2038 return result;
2039}
2040
2041static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2042{
4c476991
JB		 2043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2044 struct net_device *netdev = info->user_ptr[1];
f444de05 2045
e16821bc 2046 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2047}
2048
e8347eba
BJ		 2049static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2050{
43b19952
JB		 2051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2052 struct net_device *dev = info->user_ptr[1];
2053 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2054 const u8 *bssid;
e8347eba
BJ		 2055
2056 if (!info->attrs[NL80211_ATTR_MAC])
2057 return -EINVAL;
2058
43b19952
JB		 2059 if (netif_running(dev))
2060 return -EBUSY;
e8347eba 2061
43b19952
JB		 2062 if (!rdev->ops->set_wds_peer)
2063 return -EOPNOTSUPP;
e8347eba 2064
43b19952
JB		 2065 if (wdev->iftype != NL80211_IFTYPE_WDS)
2066 return -EOPNOTSUPP;
e8347eba
BJ		 2067
2068 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2069 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2070}
2071
2072
55682965
JB		 2073static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2074{
2075 struct cfg80211_registered_device *rdev;
f444de05
JB		 2076 struct net_device *netdev = NULL;
2077 struct wireless_dev *wdev;
a1e567c8 2078 int result = 0, rem_txq_params = 0;
31888487 2079 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2080 u32 changed;
2081 u8 retry_short = 0, retry_long = 0;
2082 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2083 u8 coverage_class = 0;
55682965 2084
5fe231e8
JB		 2085 ASSERT_RTNL();
2086
f444de05
JB		 2087 /*
2088 * Try to find the wiphy and netdev. Normally this
2089 * function shouldn't need the netdev, but this is
2090 * done for backward compatibility -- previously
2091 * setting the channel was done per wiphy, but now
2092 * it is per netdev. Previous userland like hostapd
2093 * also passed a netdev to set_wiphy, so that it is
2094 * possible to let that go to the right netdev!
2095 */
4bbf4d56 2096
f444de05
JB		 2097 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2098 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2099
7f2b8562 2100 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2101 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2102 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2103 else
f444de05 2104 netdev = NULL;
4bbf4d56
JB		 2105 }
2106
f444de05 2107 if (!netdev) {
878d9ec7
JB		 2108 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2109 info->attrs);
5fe231e8 2110 if (IS_ERR(rdev))
4c476991 2111 return PTR_ERR(rdev);
f444de05
JB		 2112 wdev = NULL;
2113 netdev = NULL;
2114 result = 0;
71fe96bf 2115 } else
f444de05 2116 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2117
2118 /*
2119 * end workaround code, by now the rdev is available
2120 * and locked, and wdev may or may not be NULL.
2121 */
4bbf4d56
JB		 2122
2123 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2124 result = cfg80211_dev_rename(
2125 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2126
4bbf4d56 2127 if (result)
7f2b8562 2128 return result;
31888487
JM		 2129
2130 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2131 struct ieee80211_txq_params txq_params;
2132 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2133
7f2b8562
YX		 2134 if (!rdev->ops->set_txq_params)
2135 return -EOPNOTSUPP;
31888487 2136
7f2b8562
YX		 2137 if (!netdev)
2138 return -EINVAL;
f70f01c2 2139
133a3ff2 2140 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2141 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2142 return -EINVAL;
133a3ff2 2143
7f2b8562
YX		 2144 if (!netif_running(netdev))
2145 return -ENETDOWN;
2b5f8b0b 2146
31888487
JM		 2147 nla_for_each_nested(nl_txq_params,
2148 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2149 rem_txq_params) {
ae811e21
JB		 2150 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2151 nla_data(nl_txq_params),
2152 nla_len(nl_txq_params),
2153 txq_params_policy);
2154 if (result)
2155 return result;
31888487
JM		 2156 result = parse_txq_params(tb, &txq_params);
2157 if (result)
7f2b8562 2158 return result;
31888487 2159
e35e4d28
HG		 2160 result = rdev_set_txq_params(rdev, netdev,
2161 &txq_params);
31888487 2162 if (result)
7f2b8562 2163 return result;
31888487
JM		 2164 }
2165 }
55682965 2166
72bdcf34 2167 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2168 result = __nl80211_set_channel(
2169 rdev,
2170 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2171 info);
72bdcf34 2172 if (result)
7f2b8562 2173 return result;
72bdcf34
JM		 2174 }
2175
98d2ff8b 2176 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2177 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2178 enum nl80211_tx_power_setting type;
2179 int idx, mbm = 0;
2180
c8442118
JB		 2181 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2182 txp_wdev = NULL;
2183
7f2b8562
YX		 2184 if (!rdev->ops->set_tx_power)
2185 return -EOPNOTSUPP;
98d2ff8b
JO		 2186
2187 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2188 type = nla_get_u32(info->attrs[idx]);
2189
2190 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2191 (type != NL80211_TX_POWER_AUTOMATIC))
2192 return -EINVAL;
98d2ff8b
JO		 2193
2194 if (type != NL80211_TX_POWER_AUTOMATIC) {
2195 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2196 mbm = nla_get_u32(info->attrs[idx]);
2197 }
2198
c8442118 2199 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2200 if (result)
7f2b8562 2201 return result;
98d2ff8b
JO		 2202 }
2203
afe0cbf8
BR		 2204 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2205 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2206 u32 tx_ant, rx_ant;
7f531e03
BR		 2207 if ((!rdev->wiphy.available_antennas_tx &&
2208 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2209 !rdev->ops->set_antenna)
2210 return -EOPNOTSUPP;
afe0cbf8
BR		 2211
2212 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2213 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2214
a7ffac95 2215 /* reject antenna configurations which don't match the
7f531e03
BR		 2216 * available antenna masks, except for the "all" mask */
2217 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2218 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2219 return -EINVAL;
a7ffac95 2220
7f531e03
BR		 2221 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2222 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2223
e35e4d28 2224 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2225 if (result)
7f2b8562 2226 return result;
afe0cbf8
BR		 2227 }
2228
b9a5f8ca
JM		 2229 changed = 0;
2230
2231 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2232 retry_short = nla_get_u8(
2233 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2234 if (retry_short == 0)
2235 return -EINVAL;
2236
b9a5f8ca
JM		 2237 changed |= WIPHY_PARAM_RETRY_SHORT;
2238 }
2239
2240 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2241 retry_long = nla_get_u8(
2242 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2243 if (retry_long == 0)
2244 return -EINVAL;
2245
b9a5f8ca
JM		 2246 changed |= WIPHY_PARAM_RETRY_LONG;
2247 }
2248
2249 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2250 frag_threshold = nla_get_u32(
2251 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2252 if (frag_threshold < 256)
2253 return -EINVAL;
2254
b9a5f8ca
JM		 2255 if (frag_threshold != (u32) -1) {
2256 /*
2257 * Fragments (apart from the last one) are required to
2258 * have even length. Make the fragmentation code
2259 * simpler by stripping LSB should someone try to use
2260 * odd threshold value.
2261 */
2262 frag_threshold &= ~0x1;
2263 }
2264 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2265 }
2266
2267 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2268 rts_threshold = nla_get_u32(
2269 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2270 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2271 }
2272
81077e82 2273 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2274 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2275 return -EINVAL;
2276
81077e82
LT		 2277 coverage_class = nla_get_u8(
2278 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2279 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2280 }
2281
3057dbfd
LB		 2282 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2283 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2284 return -EOPNOTSUPP;
2285
2286 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2287 }
2288
b9a5f8ca
JM		 2289 if (changed) {
2290 u8 old_retry_short, old_retry_long;
2291 u32 old_frag_threshold, old_rts_threshold;
81077e82 2292 u8 old_coverage_class;
b9a5f8ca 2293
7f2b8562
YX		 2294 if (!rdev->ops->set_wiphy_params)
2295 return -EOPNOTSUPP;
b9a5f8ca
JM		 2296
2297 old_retry_short = rdev->wiphy.retry_short;
2298 old_retry_long = rdev->wiphy.retry_long;
2299 old_frag_threshold = rdev->wiphy.frag_threshold;
2300 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2301 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2302
2303 if (changed & WIPHY_PARAM_RETRY_SHORT)
2304 rdev->wiphy.retry_short = retry_short;
2305 if (changed & WIPHY_PARAM_RETRY_LONG)
2306 rdev->wiphy.retry_long = retry_long;
2307 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2308 rdev->wiphy.frag_threshold = frag_threshold;
2309 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2310 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2311 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2312 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2313
e35e4d28 2314 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2315 if (result) {
2316 rdev->wiphy.retry_short = old_retry_short;
2317 rdev->wiphy.retry_long = old_retry_long;
2318 rdev->wiphy.frag_threshold = old_frag_threshold;
2319 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2320 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2321 }
2322 }
7f2b8562 2323 return 0;
55682965
JB		 2324}
2325
71bbc994
JB		 2326static inline u64 wdev_id(struct wireless_dev *wdev)
2327{
2328 return (u64)wdev->identifier |
f26cbf40 2329 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2330}
55682965 2331
683b6d3b 2332static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2333 const struct cfg80211_chan_def *chandef)
683b6d3b 2334{
601555cd
JB		 2335 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2336 return -EINVAL;
3d9d1d66 2337
683b6d3b
JB		 2338 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2339 chandef->chan->center_freq))
2340 return -ENOBUFS;
3d9d1d66
JB		 2341 switch (chandef->width) {
2342 case NL80211_CHAN_WIDTH_20_NOHT:
2343 case NL80211_CHAN_WIDTH_20:
2344 case NL80211_CHAN_WIDTH_40:
2345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2346 cfg80211_get_chandef_type(chandef)))
2347 return -ENOBUFS;
2348 break;
2349 default:
2350 break;
2351 }
2352 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2353 return -ENOBUFS;
2354 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2355 return -ENOBUFS;
2356 if (chandef->center_freq2 &&
2357 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2358 return -ENOBUFS;
2359 return 0;
2360}
2361
15e47304 2362static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2363 struct cfg80211_registered_device *rdev,
8f894be2 2364 struct wireless_dev *wdev, bool removal)
55682965 2365{
72fb2abc 2366 struct net_device *dev = wdev->netdev;
8f894be2 2367 u8 cmd = NL80211_CMD_NEW_INTERFACE;
55682965
JB		 2368 void *hdr;
2369
8f894be2
TB		 2370 if (removal)
2371 cmd = NL80211_CMD_DEL_INTERFACE;
2372
2373 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
55682965
JB		 2374 if (!hdr)
2375 return -1;
2376
72fb2abc
JB		 2377 if (dev &&
2378 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2379 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2380 goto nla_put_failure;
2381
2382 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2383 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2384 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2385 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2386 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2387 rdev->devlist_generation ^
2388 (cfg80211_rdev_list_generation << 2)))
2389 goto nla_put_failure;
f5ea9120 2390
5b7ccaf3 2391 if (rdev->ops->get_channel) {
683b6d3b
JB		 2392 int ret;
2393 struct cfg80211_chan_def chandef;
2394
2395 ret = rdev_get_channel(rdev, wdev, &chandef);
2396 if (ret == 0) {
2397 if (nl80211_send_chandef(msg, &chandef))
2398 goto nla_put_failure;
2399 }
d91df0e3
PF		 2400 }
2401
b84e7a05
AQ		 2402 if (wdev->ssid_len) {
2403 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2404 goto nla_put_failure;
2405 }
2406
55682965
JB		 2407 return genlmsg_end(msg, hdr);
2408
2409 nla_put_failure:
bc3ed28c
TG		 2410 genlmsg_cancel(msg, hdr);
2411 return -EMSGSIZE;
55682965
JB		 2412}
2413
2414static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2415{
2416 int wp_idx = 0;
2417 int if_idx = 0;
2418 int wp_start = cb->args[0];
2419 int if_start = cb->args[1];
f5ea9120 2420 struct cfg80211_registered_device *rdev;
55682965
JB		 2421 struct wireless_dev *wdev;
2422
5fe231e8 2423 rtnl_lock();
f5ea9120
JB		 2424 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2425 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2426 continue;
bba95fef
JB		 2427 if (wp_idx < wp_start) {
2428 wp_idx++;
55682965 2429 continue;
bba95fef 2430 }
55682965
JB		 2431 if_idx = 0;
2432
89a54e48 2433 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2434 if (if_idx < if_start) {
2435 if_idx++;
55682965 2436 continue;
bba95fef 2437 }
15e47304 2438 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2439 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8f894be2 2440 rdev, wdev, false) < 0) {
bba95fef
JB		 2441 goto out;
2442 }
2443 if_idx++;
55682965 2444 }
bba95fef
JB		 2445
2446 wp_idx++;
55682965 2447 }
bba95fef 2448 out:
5fe231e8 2449 rtnl_unlock();
55682965
JB		 2450
2451 cb->args[0] = wp_idx;
2452 cb->args[1] = if_idx;
2453
2454 return skb->len;
2455}
2456
2457static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2458{
2459 struct sk_buff *msg;
1b8ec87a 2460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2461 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2462
fd2120ca 2463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2464 if (!msg)
4c476991 2465 return -ENOMEM;
55682965 2466
15e47304 2467 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2468 rdev, wdev, false) < 0) {
4c476991
JB		 2469 nlmsg_free(msg);
2470 return -ENOBUFS;
2471 }
55682965 2472
134e6375 2473 return genlmsg_reply(msg, info);
55682965
JB		 2474}
2475
66f7ac50
MW		 2476static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2477 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2478 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2479 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2480 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2481 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2482 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2483};
2484
2485static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2486{
2487 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2488 int flag;
2489
2490 *mntrflags = 0;
2491
2492 if (!nla)
2493 return -EINVAL;
2494
2495 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2496 nla, mntr_flags_policy))
2497 return -EINVAL;
2498
2499 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2500 if (flags[flag])
2501 *mntrflags |= (1<<flag);
2502
2503 return 0;
2504}
2505
9bc383de 2506static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2507 struct net_device *netdev, u8 use_4addr,
2508 enum nl80211_iftype iftype)
9bc383de 2509{
ad4bb6f8 2510 if (!use_4addr) {
f350a0a8 2511 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2512 return -EBUSY;
9bc383de 2513 return 0;
ad4bb6f8 2514 }
9bc383de
JB		 2515
2516 switch (iftype) {
2517 case NL80211_IFTYPE_AP_VLAN:
2518 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2519 return 0;
2520 break;
2521 case NL80211_IFTYPE_STATION:
2522 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2523 return 0;
2524 break;
2525 default:
2526 break;
2527 }
2528
2529 return -EOPNOTSUPP;
2530}
2531
55682965
JB		 2532static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2533{
4c476991 2534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2535 struct vif_params params;
e36d56b6 2536 int err;
04a773ad 2537 enum nl80211_iftype otype, ntype;
4c476991 2538 struct net_device *dev = info->user_ptr[1];
92ffe055 2539 u32 _flags, *flags = NULL;
ac7f9cfa 2540 bool change = false;
55682965 2541
2ec600d6
LCC		 2542 memset(&params, 0, sizeof(params));
2543
04a773ad 2544 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2545
723b038d 2546 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2547 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2548 if (otype != ntype)
ac7f9cfa 2549 change = true;
4c476991
JB		 2550 if (ntype > NL80211_IFTYPE_MAX)
2551 return -EINVAL;
723b038d
JB		 2552 }
2553
92ffe055 2554 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2555 struct wireless_dev *wdev = dev->ieee80211_ptr;
2556
4c476991
JB		 2557 if (ntype != NL80211_IFTYPE_MESH_POINT)
2558 return -EINVAL;
29cbe68c
JB		 2559 if (netif_running(dev))
2560 return -EBUSY;
2561
2562 wdev_lock(wdev);
2563 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2564 IEEE80211_MAX_MESH_ID_LEN);
2565 wdev->mesh_id_up_len =
2566 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2567 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2568 wdev->mesh_id_up_len);
2569 wdev_unlock(wdev);
2ec600d6
LCC		 2570 }
2571
8b787643
FF		 2572 if (info->attrs[NL80211_ATTR_4ADDR]) {
2573 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2574 change = true;
ad4bb6f8 2575 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2576 if (err)
4c476991 2577 return err;
8b787643
FF		 2578 } else {
2579 params.use_4addr = -1;
2580 }
2581
92ffe055 2582 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2583 if (ntype != NL80211_IFTYPE_MONITOR)
2584 return -EINVAL;
92ffe055
JB		 2585 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2586 &_flags);
ac7f9cfa 2587 if (err)
4c476991 2588 return err;
ac7f9cfa
JB		 2589
2590 flags = &_flags;
2591 change = true;
92ffe055 2592 }
3b85875a 2593
18003297 2594 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2595 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2596 return -EOPNOTSUPP;
2597
ac7f9cfa 2598 if (change)
3d54d255 2599 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2600 else
2601 err = 0;
60719ffd 2602
9bc383de
JB		 2603 if (!err && params.use_4addr != -1)
2604 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2605
55682965
JB		 2606 return err;
2607}
2608
2609static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2610{
4c476991 2611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2612 struct vif_params params;
84efbb84 2613 struct wireless_dev *wdev;
8f894be2 2614 struct sk_buff *msg, *event;
55682965
JB		 2615 int err;
2616 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2617 u32 flags;
55682965 2618
78f22b6a
JB		 2619 /* to avoid failing a new interface creation due to pending removal */
2620 cfg80211_destroy_ifaces(rdev);
2621
2ec600d6
LCC		 2622 memset(&params, 0, sizeof(params));
2623
55682965
JB		 2624 if (!info->attrs[NL80211_ATTR_IFNAME])
2625 return -EINVAL;
2626
2627 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2628 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2629 if (type > NL80211_IFTYPE_MAX)
2630 return -EINVAL;
2631 }
2632
79c97e97 2633 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2634 !(rdev->wiphy.interface_modes & (1 << type)))
2635 return -EOPNOTSUPP;
55682965 2636
e8f479b1
BG		 2637 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2638 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2639 info->attrs[NL80211_ATTR_MAC]) {
1c18f145
AS		 2640 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2641 ETH_ALEN);
2642 if (!is_valid_ether_addr(params.macaddr))
2643 return -EADDRNOTAVAIL;
2644 }
2645
9bc383de 2646 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2647 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2648 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2649 if (err)
4c476991 2650 return err;
9bc383de 2651 }
8b787643 2652
1c90f9d4
JB		 2653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2654 if (!msg)
2655 return -ENOMEM;
2656
66f7ac50
MW		 2657 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2658 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2659 &flags);
e057d3c3 2660
18003297 2661 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2662 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2663 return -EOPNOTSUPP;
2664
e35e4d28
HG		 2665 wdev = rdev_add_virtual_intf(rdev,
2666 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2667 type, err ? NULL : &flags, &params);
d687cbb7
RM		 2668 if (WARN_ON(!wdev)) {
2669 nlmsg_free(msg);
2670 return -EPROTO;
2671 } else if (IS_ERR(wdev)) {
1c90f9d4 2672 nlmsg_free(msg);
84efbb84 2673 return PTR_ERR(wdev);
1c90f9d4 2674 }
2ec600d6 2675
18e5ca65 2676 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
78f22b6a
JB		 2677 wdev->owner_nlportid = info->snd_portid;
2678
98104fde
JB		 2679 switch (type) {
2680 case NL80211_IFTYPE_MESH_POINT:
2681 if (!info->attrs[NL80211_ATTR_MESH_ID])
2682 break;
29cbe68c
JB		 2683 wdev_lock(wdev);
2684 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2685 IEEE80211_MAX_MESH_ID_LEN);
2686 wdev->mesh_id_up_len =
2687 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2688 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2689 wdev->mesh_id_up_len);
2690 wdev_unlock(wdev);
98104fde
JB		 2691 break;
2692 case NL80211_IFTYPE_P2P_DEVICE:
2693 /*
2694 * P2P Device doesn't have a netdev, so doesn't go
2695 * through the netdev notifier and must be added here
2696 */
2697 mutex_init(&wdev->mtx);
2698 INIT_LIST_HEAD(&wdev->event_list);
2699 spin_lock_init(&wdev->event_lock);
2700 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2701 spin_lock_init(&wdev->mgmt_registrations_lock);
2702
98104fde
JB		 2703 wdev->identifier = ++rdev->wdev_id;
2704 list_add_rcu(&wdev->list, &rdev->wdev_list);
2705 rdev->devlist_generation++;
98104fde
JB		 2706 break;
2707 default:
2708 break;
29cbe68c
JB		 2709 }
2710
15e47304 2711 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
8f894be2 2712 rdev, wdev, false) < 0) {
1c90f9d4
JB		 2713 nlmsg_free(msg);
2714 return -ENOBUFS;
2715 }
2716
8f894be2
TB		 2717 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2718 if (event) {
2719 if (nl80211_send_iface(event, 0, 0, 0,
2720 rdev, wdev, false) < 0) {
2721 nlmsg_free(event);
2722 goto out;
2723 }
2724
2725 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2726 event, 0, NL80211_MCGRP_CONFIG,
2727 GFP_KERNEL);
2728 }
2729
2730out:
1c90f9d4 2731 return genlmsg_reply(msg, info);
55682965
JB		 2732}
2733
2734static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2735{
4c476991 2736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2737 struct wireless_dev *wdev = info->user_ptr[1];
8f894be2
TB		 2738 struct sk_buff *msg;
2739 int status;
55682965 2740
4c476991
JB		 2741 if (!rdev->ops->del_virtual_intf)
2742 return -EOPNOTSUPP;
55682965 2743
8f894be2
TB		 2744 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2745 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2746 nlmsg_free(msg);
2747 msg = NULL;
2748 }
2749
84efbb84
JB		 2750 /*
2751 * If we remove a wireless device without a netdev then clear
2752 * user_ptr[1] so that nl80211_post_doit won't dereference it
2753 * to check if it needs to do dev_put(). Otherwise it crashes
2754 * since the wdev has been freed, unlike with a netdev where
2755 * we need the dev_put() for the netdev to really be freed.
2756 */
2757 if (!wdev->netdev)
2758 info->user_ptr[1] = NULL;
2759
8f894be2
TB		 2760 status = rdev_del_virtual_intf(rdev, wdev);
2761 if (status >= 0 && msg)
2762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2763 msg, 0, NL80211_MCGRP_CONFIG,
2764 GFP_KERNEL);
2765 else
2766 nlmsg_free(msg);
2767
2768 return status;
55682965
JB		 2769}
2770
1d9d9213
SW		 2771static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2772{
2773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2774 struct net_device *dev = info->user_ptr[1];
2775 u16 noack_map;
2776
2777 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2778 return -EINVAL;
2779
2780 if (!rdev->ops->set_noack_map)
2781 return -EOPNOTSUPP;
2782
2783 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2784
e35e4d28 2785 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2786}
2787
41ade00f
JB		 2788struct get_key_cookie {
2789 struct sk_buff *msg;
2790 int error;
b9454e83 2791 int idx;
41ade00f
JB		 2792};
2793
2794static void get_key_callback(void *c, struct key_params *params)
2795{
b9454e83 2796 struct nlattr *key;
41ade00f
JB		 2797 struct get_key_cookie *cookie = c;
2798
9360ffd1
DM		 2799 if ((params->key &&
2800 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2801 params->key_len, params->key)) ||
2802 (params->seq &&
2803 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2804 params->seq_len, params->seq)) ||
2805 (params->cipher &&
2806 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2807 params->cipher)))
2808 goto nla_put_failure;
41ade00f 2809
b9454e83
JB		 2810 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2811 if (!key)
2812 goto nla_put_failure;
2813
9360ffd1
DM		 2814 if ((params->key &&
2815 nla_put(cookie->msg, NL80211_KEY_DATA,
2816 params->key_len, params->key)) ||
2817 (params->seq &&
2818 nla_put(cookie->msg, NL80211_KEY_SEQ,
2819 params->seq_len, params->seq)) ||
2820 (params->cipher &&
2821 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2822 params->cipher)))
2823 goto nla_put_failure;
b9454e83 2824
9360ffd1
DM		 2825 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2826 goto nla_put_failure;
b9454e83
JB		 2827
2828 nla_nest_end(cookie->msg, key);
2829
41ade00f
JB		 2830 return;
2831 nla_put_failure:
2832 cookie->error = 1;
2833}
2834
2835static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2836{
4c476991 2837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2838 int err;
4c476991 2839 struct net_device *dev = info->user_ptr[1];
41ade00f 2840 u8 key_idx = 0;
e31b8213
JB		 2841 const u8 *mac_addr = NULL;
2842 bool pairwise;
41ade00f
JB		 2843 struct get_key_cookie cookie = {
2844 .error = 0,
2845 };
2846 void *hdr;
2847 struct sk_buff *msg;
2848
2849 if (info->attrs[NL80211_ATTR_KEY_IDX])
2850 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2851
3cfcf6ac 2852 if (key_idx > 5)
41ade00f
JB		 2853 return -EINVAL;
2854
2855 if (info->attrs[NL80211_ATTR_MAC])
2856 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2857
e31b8213
JB		 2858 pairwise = !!mac_addr;
2859 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2860 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2861 if (kt >= NUM_NL80211_KEYTYPES)
2862 return -EINVAL;
2863 if (kt != NL80211_KEYTYPE_GROUP &&
2864 kt != NL80211_KEYTYPE_PAIRWISE)
2865 return -EINVAL;
2866 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2867 }
2868
4c476991
JB		 2869 if (!rdev->ops->get_key)
2870 return -EOPNOTSUPP;
41ade00f 2871
fd2120ca 2872 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2873 if (!msg)
2874 return -ENOMEM;
41ade00f 2875
15e47304 2876 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2877 NL80211_CMD_NEW_KEY);
cb35fba3 2878 if (!hdr)
9fe271af 2879 goto nla_put_failure;
41ade00f
JB		 2880
2881 cookie.msg = msg;
b9454e83 2882 cookie.idx = key_idx;
41ade00f 2883
9360ffd1
DM		 2884 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2885 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2886 goto nla_put_failure;
2887 if (mac_addr &&
2888 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2889 goto nla_put_failure;
41ade00f 2890
e31b8213
JB		 2891 if (pairwise && mac_addr &&
2892 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2893 return -ENOENT;
2894
e35e4d28
HG		 2895 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2896 get_key_callback);
41ade00f
JB		 2897
2898 if (err)
6c95e2a2 2899 goto free_msg;
41ade00f
JB		 2900
2901 if (cookie.error)
2902 goto nla_put_failure;
2903
2904 genlmsg_end(msg, hdr);
4c476991 2905 return genlmsg_reply(msg, info);
41ade00f
JB		 2906
2907 nla_put_failure:
2908 err = -ENOBUFS;
6c95e2a2 2909 free_msg:
41ade00f 2910 nlmsg_free(msg);
41ade00f
JB		 2911 return err;
2912}
2913
2914static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2915{
4c476991 2916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2917 struct key_parse key;
41ade00f 2918 int err;
4c476991 2919 struct net_device *dev = info->user_ptr[1];
41ade00f 2920
b9454e83
JB		 2921 err = nl80211_parse_key(info, &key);
2922 if (err)
2923 return err;
41ade00f 2924
b9454e83 2925 if (key.idx < 0)
41ade00f
JB		 2926 return -EINVAL;
2927
b9454e83
JB		 2928 /* only support setting default key */
2929 if (!key.def && !key.defmgmt)
41ade00f
JB		 2930 return -EINVAL;
2931
dbd2fd65 2932 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2933
dbd2fd65
JB		 2934 if (key.def) {
2935 if (!rdev->ops->set_default_key) {
2936 err = -EOPNOTSUPP;
2937 goto out;
2938 }
41ade00f 2939
dbd2fd65
JB		 2940 err = nl80211_key_allowed(dev->ieee80211_ptr);
2941 if (err)
2942 goto out;
2943
e35e4d28 2944 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2945 key.def_uni, key.def_multi);
2946
2947 if (err)
2948 goto out;
fffd0934 2949
3d23e349 2950#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2951 dev->ieee80211_ptr->wext.default_key = key.idx;
2952#endif
2953 } else {
2954 if (key.def_uni || !key.def_multi) {
2955 err = -EINVAL;
2956 goto out;
2957 }
2958
2959 if (!rdev->ops->set_default_mgmt_key) {
2960 err = -EOPNOTSUPP;
2961 goto out;
2962 }
2963
2964 err = nl80211_key_allowed(dev->ieee80211_ptr);
2965 if (err)
2966 goto out;
2967
e35e4d28 2968 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2969 if (err)
2970 goto out;
2971
2972#ifdef CONFIG_CFG80211_WEXT
2973 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2974#endif
dbd2fd65
JB		 2975 }
2976
2977 out:
fffd0934 2978 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2979
41ade00f
JB		 2980 return err;
2981}
2982
2983static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2984{
4c476991 2985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2986 int err;
4c476991 2987 struct net_device *dev = info->user_ptr[1];
b9454e83 2988 struct key_parse key;
e31b8213 2989 const u8 *mac_addr = NULL;
41ade00f 2990
b9454e83
JB		 2991 err = nl80211_parse_key(info, &key);
2992 if (err)
2993 return err;
41ade00f 2994
b9454e83 2995 if (!key.p.key)
41ade00f
JB		 2996 return -EINVAL;
2997
41ade00f
JB		 2998 if (info->attrs[NL80211_ATTR_MAC])
2999 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3000
e31b8213
JB		 3001 if (key.type == -1) {
3002 if (mac_addr)
3003 key.type = NL80211_KEYTYPE_PAIRWISE;
3004 else
3005 key.type = NL80211_KEYTYPE_GROUP;
3006 }
3007
3008 /* for now */
3009 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3010 key.type != NL80211_KEYTYPE_GROUP)
3011 return -EINVAL;
3012
4c476991
JB		 3013 if (!rdev->ops->add_key)
3014 return -EOPNOTSUPP;
25e47c18 3015
e31b8213
JB		 3016 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3017 key.type == NL80211_KEYTYPE_PAIRWISE,
3018 mac_addr))
4c476991 3019 return -EINVAL;
41ade00f 3020
fffd0934
JB		 3021 wdev_lock(dev->ieee80211_ptr);
3022 err = nl80211_key_allowed(dev->ieee80211_ptr);
3023 if (!err)
e35e4d28
HG		 3024 err = rdev_add_key(rdev, dev, key.idx,
3025 key.type == NL80211_KEYTYPE_PAIRWISE,
3026 mac_addr, &key.p);
fffd0934 3027 wdev_unlock(dev->ieee80211_ptr);
41ade00f 3028
41ade00f
JB		 3029 return err;
3030}
3031
3032static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3033{
4c476991 3034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 3035 int err;
4c476991 3036 struct net_device *dev = info->user_ptr[1];
41ade00f 3037 u8 *mac_addr = NULL;
b9454e83 3038 struct key_parse key;
41ade00f 3039
b9454e83
JB		 3040 err = nl80211_parse_key(info, &key);
3041 if (err)
3042 return err;
41ade00f
JB		 3043
3044 if (info->attrs[NL80211_ATTR_MAC])
3045 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3046
e31b8213
JB		 3047 if (key.type == -1) {
3048 if (mac_addr)
3049 key.type = NL80211_KEYTYPE_PAIRWISE;
3050 else
3051 key.type = NL80211_KEYTYPE_GROUP;
3052 }
3053
3054 /* for now */
3055 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3056 key.type != NL80211_KEYTYPE_GROUP)
3057 return -EINVAL;
3058
4c476991
JB		 3059 if (!rdev->ops->del_key)
3060 return -EOPNOTSUPP;
41ade00f 3061
fffd0934
JB		 3062 wdev_lock(dev->ieee80211_ptr);
3063 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3064
3065 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3066 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3067 err = -ENOENT;
3068
fffd0934 3069 if (!err)
e35e4d28
HG		 3070 err = rdev_del_key(rdev, dev, key.idx,
3071 key.type == NL80211_KEYTYPE_PAIRWISE,
3072 mac_addr);
41ade00f 3073
3d23e349 3074#ifdef CONFIG_CFG80211_WEXT
08645126 3075 if (!err) {
b9454e83 3076 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3077 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3078 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3079 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3080 }
3081#endif
fffd0934 3082 wdev_unlock(dev->ieee80211_ptr);
08645126 3083
41ade00f
JB		 3084 return err;
3085}
3086
77765eaf
VT		 3087/* This function returns an error or the number of nested attributes */
3088static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3089{
3090 struct nlattr *attr;
3091 int n_entries = 0, tmp;
3092
3093 nla_for_each_nested(attr, nl_attr, tmp) {
3094 if (nla_len(attr) != ETH_ALEN)
3095 return -EINVAL;
3096
3097 n_entries++;
3098 }
3099
3100 return n_entries;
3101}
3102
3103/*
3104 * This function parses ACL information and allocates memory for ACL data.
3105 * On successful return, the calling function is responsible to free the
3106 * ACL buffer returned by this function.
3107 */
3108static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3109 struct genl_info *info)
3110{
3111 enum nl80211_acl_policy acl_policy;
3112 struct nlattr *attr;
3113 struct cfg80211_acl_data *acl;
3114 int i = 0, n_entries, tmp;
3115
3116 if (!wiphy->max_acl_mac_addrs)
3117 return ERR_PTR(-EOPNOTSUPP);
3118
3119 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3120 return ERR_PTR(-EINVAL);
3121
3122 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3123 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3124 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3125 return ERR_PTR(-EINVAL);
3126
3127 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3128 return ERR_PTR(-EINVAL);
3129
3130 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3131 if (n_entries < 0)
3132 return ERR_PTR(n_entries);
3133
3134 if (n_entries > wiphy->max_acl_mac_addrs)
3135 return ERR_PTR(-ENOTSUPP);
3136
3137 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3138 GFP_KERNEL);
3139 if (!acl)
3140 return ERR_PTR(-ENOMEM);
3141
3142 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3143 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3144 i++;
3145 }
3146
3147 acl->n_acl_entries = n_entries;
3148 acl->acl_policy = acl_policy;
3149
3150 return acl;
3151}
3152
3153static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3154{
3155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3156 struct net_device *dev = info->user_ptr[1];
3157 struct cfg80211_acl_data *acl;
3158 int err;
3159
3160 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3161 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3162 return -EOPNOTSUPP;
3163
3164 if (!dev->ieee80211_ptr->beacon_interval)
3165 return -EINVAL;
3166
3167 acl = parse_acl_data(&rdev->wiphy, info);
3168 if (IS_ERR(acl))
3169 return PTR_ERR(acl);
3170
3171 err = rdev_set_mac_acl(rdev, dev, acl);
3172
3173 kfree(acl);
3174
3175 return err;
3176}
3177
a1193be8 3178static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3179 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3180{
8860020e 3181 bool haveinfo = false;
ed1b6cc7 3182
a1193be8
SW		 3183 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3184 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3185 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3186 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3187 return -EINVAL;
3188
8860020e 3189 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3190
a1193be8
SW		 3191 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3192 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3193 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3194 if (!bcn->head_len)
3195 return -EINVAL;
3196 haveinfo = true;
ed1b6cc7
JB		 3197 }
3198
a1193be8
SW		 3199 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3200 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3201 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3202 haveinfo = true;
ed1b6cc7
JB		 3203 }
3204
4c476991
JB		 3205 if (!haveinfo)
3206 return -EINVAL;
3b85875a 3207
a1193be8
SW		 3208 if (attrs[NL80211_ATTR_IE]) {
3209 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3210 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3211 }
3212
a1193be8 3213 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3214 bcn->proberesp_ies =
a1193be8 3215 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3216 bcn->proberesp_ies_len =
a1193be8 3217 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3218 }
3219
a1193be8 3220 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3221 bcn->assocresp_ies =
a1193be8 3222 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3223 bcn->assocresp_ies_len =
a1193be8 3224 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3225 }
3226
a1193be8
SW		 3227 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3228 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3229 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3230 }
3231
8860020e
JB		 3232 return 0;
3233}
3234
46c1dd0c
FF		 3235static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3236 struct cfg80211_ap_settings *params)
3237{
3238 struct wireless_dev *wdev;
3239 bool ret = false;
3240
89a54e48 3241 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3242 if (wdev->iftype != NL80211_IFTYPE_AP &&
3243 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3244 continue;
3245
683b6d3b 3246 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3247 continue;
3248
683b6d3b 3249 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3250 ret = true;
3251 break;
3252 }
3253
46c1dd0c
FF		 3254 return ret;
3255}
3256
e39e5b5e
JM		 3257static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3258 enum nl80211_auth_type auth_type,
3259 enum nl80211_commands cmd)
3260{
3261 if (auth_type > NL80211_AUTHTYPE_MAX)
3262 return false;
3263
3264 switch (cmd) {
3265 case NL80211_CMD_AUTHENTICATE:
3266 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3267 auth_type == NL80211_AUTHTYPE_SAE)
3268 return false;
3269 return true;
3270 case NL80211_CMD_CONNECT:
3271 case NL80211_CMD_START_AP:
3272 /* SAE not supported yet */
3273 if (auth_type == NL80211_AUTHTYPE_SAE)
3274 return false;
3275 return true;
3276 default:
3277 return false;
3278 }
3279}
3280
8860020e
JB		 3281static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3282{
3283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3284 struct net_device *dev = info->user_ptr[1];
3285 struct wireless_dev *wdev = dev->ieee80211_ptr;
3286 struct cfg80211_ap_settings params;
3287 int err;
3288
3289 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3290 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3291 return -EOPNOTSUPP;
3292
3293 if (!rdev->ops->start_ap)
3294 return -EOPNOTSUPP;
3295
3296 if (wdev->beacon_interval)
3297 return -EALREADY;
3298
3299 memset(&params, 0, sizeof(params));
3300
3301 /* these are required for START_AP */
3302 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3303 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3304 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3305 return -EINVAL;
3306
a1193be8 3307 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3308 if (err)
3309 return err;
3310
3311 params.beacon_interval =
3312 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3313 params.dtim_period =
3314 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3315
3316 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3317 if (err)
3318 return err;
3319
3320 /*
3321 * In theory, some of these attributes should be required here
3322 * but since they were not used when the command was originally
3323 * added, keep them optional for old user space programs to let
3324 * them continue to work with drivers that do not need the
3325 * additional information -- drivers must check!
3326 */
3327 if (info->attrs[NL80211_ATTR_SSID]) {
3328 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3329 params.ssid_len =
3330 nla_len(info->attrs[NL80211_ATTR_SSID]);
3331 if (params.ssid_len == 0 ||
3332 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3333 return -EINVAL;
3334 }
3335
3336 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3337 params.hidden_ssid = nla_get_u32(
3338 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3339 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3340 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3341 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3342 return -EINVAL;
3343 }
3344
3345 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3346
3347 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3348 params.auth_type = nla_get_u32(
3349 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3350 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3351 NL80211_CMD_START_AP))
8860020e
JB		 3352 return -EINVAL;
3353 } else
3354 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3355
3356 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3357 NL80211_MAX_NR_CIPHER_SUITES);
3358 if (err)
3359 return err;
3360
1b658f11
VT		 3361 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3362 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3363 return -EOPNOTSUPP;
3364 params.inactivity_timeout = nla_get_u16(
3365 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3366 }
3367
53cabad7
JB		 3368 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3369 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3370 return -EINVAL;
3371 params.p2p_ctwindow =
3372 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3373 if (params.p2p_ctwindow > 127)
3374 return -EINVAL;
3375 if (params.p2p_ctwindow != 0 &&
3376 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3377 return -EINVAL;
3378 }
3379
3380 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3381 u8 tmp;
3382
3383 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3384 return -EINVAL;
3385 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3386 if (tmp > 1)
3387 return -EINVAL;
3388 params.p2p_opp_ps = tmp;
3389 if (params.p2p_opp_ps != 0 &&
3390 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3391 return -EINVAL;
3392 }
3393
aa430da4 3394 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3395 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3396 if (err)
3397 return err;
3398 } else if (wdev->preset_chandef.chan) {
3399 params.chandef = wdev->preset_chandef;
46c1dd0c 3400 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3401 return -EINVAL;
3402
174e0cd2
IP		 3403 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3404 wdev->iftype))
aa430da4
JB		 3405 return -EINVAL;
3406
77765eaf
VT		 3407 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3408 params.acl = parse_acl_data(&rdev->wiphy, info);
3409 if (IS_ERR(params.acl))
3410 return PTR_ERR(params.acl);
3411 }
3412
18998c38
EP		 3413 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3414 params.smps_mode =
3415 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3416 switch (params.smps_mode) {
3417 case NL80211_SMPS_OFF:
3418 break;
3419 case NL80211_SMPS_STATIC:
3420 if (!(rdev->wiphy.features &
3421 NL80211_FEATURE_STATIC_SMPS))
3422 return -EINVAL;
3423 break;
3424 case NL80211_SMPS_DYNAMIC:
3425 if (!(rdev->wiphy.features &
3426 NL80211_FEATURE_DYNAMIC_SMPS))
3427 return -EINVAL;
3428 break;
3429 default:
3430 return -EINVAL;
3431 }
3432 } else {
3433 params.smps_mode = NL80211_SMPS_OFF;
3434 }
3435
c56589ed 3436 wdev_lock(wdev);
e35e4d28 3437 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3438 if (!err) {
683b6d3b 3439 wdev->preset_chandef = params.chandef;
8860020e 3440 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3441 wdev->chandef = params.chandef;
06e191e2
AQ		 3442 wdev->ssid_len = params.ssid_len;
3443 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3444 }
c56589ed 3445 wdev_unlock(wdev);
77765eaf
VT		 3446
3447 kfree(params.acl);
3448
56d1893d 3449 return err;
ed1b6cc7
JB		 3450}
3451
8860020e
JB		 3452static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3453{
3454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3455 struct net_device *dev = info->user_ptr[1];
3456 struct wireless_dev *wdev = dev->ieee80211_ptr;
3457 struct cfg80211_beacon_data params;
3458 int err;
3459
3460 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3461 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3462 return -EOPNOTSUPP;
3463
3464 if (!rdev->ops->change_beacon)
3465 return -EOPNOTSUPP;
3466
3467 if (!wdev->beacon_interval)
3468 return -EINVAL;
3469
a1193be8 3470 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3471 if (err)
3472 return err;
3473
c56589ed
SW		 3474 wdev_lock(wdev);
3475 err = rdev_change_beacon(rdev, dev, &params);
3476 wdev_unlock(wdev);
3477
3478 return err;
8860020e
JB		 3479}
3480
3481static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3482{
4c476991
JB		 3483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3484 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3485
7c8d5e03 3486 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3487}
3488
5727ef1b
JB		 3489static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3490 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3491 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3492 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3493 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3494 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3495 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3496};
3497
eccb8e8f 3498static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3499 enum nl80211_iftype iftype,
eccb8e8f 3500 struct station_parameters *params)
5727ef1b
JB		 3501{
3502 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3503 struct nlattr *nla;
5727ef1b
JB		 3504 int flag;
3505
eccb8e8f
JB		 3506 /*
3507 * Try parsing the new attribute first so userspace
3508 * can specify both for older kernels.
3509 */
3510 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3511 if (nla) {
3512 struct nl80211_sta_flag_update *sta_flags;
3513
3514 sta_flags = nla_data(nla);
3515 params->sta_flags_mask = sta_flags->mask;
3516 params->sta_flags_set = sta_flags->set;
77ee7c89 3517 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3518 if ((params->sta_flags_mask |
3519 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3520 return -EINVAL;
3521 return 0;
3522 }
3523
3524 /* if present, parse the old attribute */
5727ef1b 3525
eccb8e8f 3526 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3527 if (!nla)
3528 return 0;
3529
3530 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3531 nla, sta_flags_policy))
3532 return -EINVAL;
3533
bdd3ae3d
JB		 3534 /*
3535 * Only allow certain flags for interface types so that
3536 * other attributes are silently ignored. Remember that
3537 * this is backward compatibility code with old userspace
3538 * and shouldn't be hit in other cases anyway.
3539 */
3540 switch (iftype) {
3541 case NL80211_IFTYPE_AP:
3542 case NL80211_IFTYPE_AP_VLAN:
3543 case NL80211_IFTYPE_P2P_GO:
3544 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3545 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3546 BIT(NL80211_STA_FLAG_WME) |
3547 BIT(NL80211_STA_FLAG_MFP);
3548 break;
3549 case NL80211_IFTYPE_P2P_CLIENT:
3550 case NL80211_IFTYPE_STATION:
3551 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3552 BIT(NL80211_STA_FLAG_TDLS_PEER);
3553 break;
3554 case NL80211_IFTYPE_MESH_POINT:
3555 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3556 BIT(NL80211_STA_FLAG_MFP) |
3557 BIT(NL80211_STA_FLAG_AUTHORIZED);
3558 default:
3559 return -EINVAL;
3560 }
5727ef1b 3561
3383b5a6
JB		 3562 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3563 if (flags[flag]) {
eccb8e8f 3564 params->sta_flags_set |= (1<<flag);
5727ef1b 3565
3383b5a6
JB		 3566 /* no longer support new API additions in old API */
3567 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3568 return -EINVAL;
3569 }
3570 }
3571
5727ef1b
JB		 3572 return 0;
3573}
3574
c8dcfd8a
FF		 3575static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3576 int attr)
3577{
3578 struct nlattr *rate;
8eb41c8d
VK		 3579 u32 bitrate;
3580 u16 bitrate_compat;
b51f3bee 3581 enum nl80211_attrs rate_flg;
c8dcfd8a
FF		 3582
3583 rate = nla_nest_start(msg, attr);
3584 if (!rate)
db9c64cf 3585 return false;
c8dcfd8a
FF		 3586
3587 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3588 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3589 /* report 16-bit bitrate only if we can */
3590 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3591 if (bitrate > 0 &&
3592 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3593 return false;
3594 if (bitrate_compat > 0 &&
3595 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3596 return false;
3597
b51f3bee
JB		 3598 switch (info->bw) {
3599 case RATE_INFO_BW_5:
3600 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3601 break;
3602 case RATE_INFO_BW_10:
3603 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3604 break;
3605 default:
3606 WARN_ON(1);
3607 /* fall through */
3608 case RATE_INFO_BW_20:
3609 rate_flg = 0;
3610 break;
3611 case RATE_INFO_BW_40:
3612 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3613 break;
3614 case RATE_INFO_BW_80:
3615 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3616 break;
3617 case RATE_INFO_BW_160:
3618 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3619 break;
3620 }
3621
3622 if (rate_flg && nla_put_flag(msg, rate_flg))
3623 return false;
3624
db9c64cf
JB		 3625 if (info->flags & RATE_INFO_FLAGS_MCS) {
3626 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3627 return false;
db9c64cf
JB		 3628 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3629 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3630 return false;
3631 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3632 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3633 return false;
3634 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3635 return false;
db9c64cf
JB		 3636 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3637 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3638 return false;
3639 }
c8dcfd8a
FF		 3640
3641 nla_nest_end(msg, rate);
3642 return true;
c8dcfd8a
FF		 3643}
3644
119363c7
FF		 3645static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3646 int id)
3647{
3648 void *attr;
3649 int i = 0;
3650
3651 if (!mask)
3652 return true;
3653
3654 attr = nla_nest_start(msg, id);
3655 if (!attr)
3656 return false;
3657
3658 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3659 if (!(mask & BIT(i)))
3660 continue;
3661
3662 if (nla_put_u8(msg, i, signal[i]))
3663 return false;
3664 }
3665
3666 nla_nest_end(msg, attr);
3667
3668 return true;
3669}
3670
cf5ead82
JB		 3671static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3672 u32 seq, int flags,
66266b3a
JL		 3673 struct cfg80211_registered_device *rdev,
3674 struct net_device *dev,
98b62183 3675 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3676{
3677 void *hdr;
f4263c98 3678 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3679
cf5ead82 3680 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
fd5b74dc
JB		 3681 if (!hdr)
3682 return -1;
3683
9360ffd1
DM		 3684 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3685 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3686 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3687 goto nla_put_failure;
f5ea9120 3688
2ec600d6
LCC		 3689 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3690 if (!sinfoattr)
fd5b74dc 3691 goto nla_put_failure;
319090bf
JB		 3692
3693#define PUT_SINFO(attr, memb, type) do { \
3694 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3695 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3696 sinfo->memb)) \
3697 goto nla_put_failure; \
3698 } while (0)
3699
3700 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3701 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3702
3703 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3704 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
9360ffd1 3705 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3706 (u32)sinfo->rx_bytes))
9360ffd1 3707 goto nla_put_failure;
319090bf
JB		 3708
3709 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3710 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3711 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3712 (u32)sinfo->tx_bytes))
3713 goto nla_put_failure;
319090bf
JB		 3714
3715 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3716 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3717 PUT_SINFO(LLID, llid, u16);
3718 PUT_SINFO(PLID, plid, u16);
3719 PUT_SINFO(PLINK_STATE, plink_state, u8);
3720
66266b3a
JL		 3721 switch (rdev->wiphy.signal_type) {
3722 case CFG80211_SIGNAL_TYPE_MBM:
319090bf
JB		 3723 PUT_SINFO(SIGNAL, signal, u8);
3724 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
66266b3a
JL		 3725 break;
3726 default:
3727 break;
3728 }
319090bf 3729 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
119363c7
FF		 3730 if (!nl80211_put_signal(msg, sinfo->chains,
3731 sinfo->chain_signal,
3732 NL80211_STA_INFO_CHAIN_SIGNAL))
3733 goto nla_put_failure;
3734 }
319090bf 3735 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
119363c7
FF		 3736 if (!nl80211_put_signal(msg, sinfo->chains,
3737 sinfo->chain_signal_avg,
3738 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3739 goto nla_put_failure;
3740 }
319090bf 3741 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
c8dcfd8a
FF		 3742 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3743 NL80211_STA_INFO_TX_BITRATE))
3744 goto nla_put_failure;
3745 }
319090bf 3746 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
c8dcfd8a
FF		 3747 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3748 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3749 goto nla_put_failure;
420e7fab 3750 }
319090bf
JB		 3751
3752 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3753 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3754 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3755 PUT_SINFO(TX_FAILED, tx_failed, u32);
3756 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3757 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3758 PUT_SINFO(LOCAL_PM, local_pm, u32);
3759 PUT_SINFO(PEER_PM, peer_pm, u32);
3760 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3761
3762 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
f4263c98
PS		 3763 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3764 if (!bss_param)
3765 goto nla_put_failure;
3766
9360ffd1
DM		 3767 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3768 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3769 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3770 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3771 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3772 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3773 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3774 sinfo->bss_param.dtim_period) ||
3775 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3776 sinfo->bss_param.beacon_interval))
3777 goto nla_put_failure;
f4263c98
PS		 3778
3779 nla_nest_end(msg, bss_param);
3780 }
319090bf 3781 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
9360ffd1
DM		 3782 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3783 sizeof(struct nl80211_sta_flag_update),
3784 &sinfo->sta_flags))
3785 goto nla_put_failure;
319090bf
JB		 3786
3787 PUT_SINFO(T_OFFSET, t_offset, u64);
3788 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
a76b1942
JB		 3789 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3790 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
319090bf
JB		 3791
3792#undef PUT_SINFO
6de39808
JB		 3793
3794 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3795 struct nlattr *tidsattr;
3796 int tid;
3797
3798 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3799 if (!tidsattr)
3800 goto nla_put_failure;
3801
3802 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3803 struct cfg80211_tid_stats *tidstats;
3804 struct nlattr *tidattr;
3805
3806 tidstats = &sinfo->pertid[tid];
3807
3808 if (!tidstats->filled)
3809 continue;
3810
3811 tidattr = nla_nest_start(msg, tid + 1);
3812 if (!tidattr)
3813 goto nla_put_failure;
3814
3815#define PUT_TIDVAL(attr, memb, type) do { \
3816 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3817 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3818 tidstats->memb)) \
3819 goto nla_put_failure; \
3820 } while (0)
3821
3822 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3823 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3824 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3825 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3826
3827#undef PUT_TIDVAL
3828 nla_nest_end(msg, tidattr);
3829 }
3830
3831 nla_nest_end(msg, tidsattr);
3832 }
3833
2ec600d6 3834 nla_nest_end(msg, sinfoattr);
fd5b74dc 3835
319090bf 3836 if (sinfo->assoc_req_ies_len &&
9360ffd1
DM		 3837 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3838 sinfo->assoc_req_ies))
3839 goto nla_put_failure;
50d3dfb7 3840
fd5b74dc
JB		 3841 return genlmsg_end(msg, hdr);
3842
3843 nla_put_failure:
bc3ed28c
TG		 3844 genlmsg_cancel(msg, hdr);
3845 return -EMSGSIZE;
fd5b74dc
JB		 3846}
3847
2ec600d6 3848static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3849 struct netlink_callback *cb)
2ec600d6 3850{
2ec600d6 3851 struct station_info sinfo;
1b8ec87a 3852 struct cfg80211_registered_device *rdev;
97990a06 3853 struct wireless_dev *wdev;
2ec600d6 3854 u8 mac_addr[ETH_ALEN];
97990a06 3855 int sta_idx = cb->args[2];
2ec600d6 3856 int err;
2ec600d6 3857
1b8ec87a 3858 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3859 if (err)
3860 return err;
bba95fef 3861
97990a06
JB		 3862 if (!wdev->netdev) {
3863 err = -EINVAL;
3864 goto out_err;
3865 }
3866
1b8ec87a 3867 if (!rdev->ops->dump_station) {
eec60b03 3868 err = -EOPNOTSUPP;
bba95fef
JB		 3869 goto out_err;
3870 }
3871
bba95fef 3872 while (1) {
f612cedf 3873 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3874 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3875 mac_addr, &sinfo);
bba95fef
JB		 3876 if (err == -ENOENT)
3877 break;
3878 if (err)
3b85875a 3879 goto out_err;
bba95fef 3880
cf5ead82 3881 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
15e47304 3882 NETLINK_CB(cb->skb).portid,
bba95fef 3883 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3884 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3885 &sinfo) < 0)
3886 goto out;
3887
3888 sta_idx++;
3889 }
3890
3891
3892 out:
97990a06 3893 cb->args[2] = sta_idx;
bba95fef 3894 err = skb->len;
bba95fef 3895 out_err:
1b8ec87a 3896 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3897
3898 return err;
2ec600d6 3899}
fd5b74dc 3900
5727ef1b
JB		 3901static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3902{
4c476991
JB		 3903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3904 struct net_device *dev = info->user_ptr[1];
2ec600d6 3905 struct station_info sinfo;
fd5b74dc
JB		 3906 struct sk_buff *msg;
3907 u8 *mac_addr = NULL;
4c476991 3908 int err;
fd5b74dc 3909
2ec600d6 3910 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3911
3912 if (!info->attrs[NL80211_ATTR_MAC])
3913 return -EINVAL;
3914
3915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3916
4c476991
JB		 3917 if (!rdev->ops->get_station)
3918 return -EOPNOTSUPP;
3b85875a 3919
e35e4d28 3920 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3921 if (err)
4c476991 3922 return err;
2ec600d6 3923
fd2120ca 3924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3925 if (!msg)
4c476991 3926 return -ENOMEM;
fd5b74dc 3927
cf5ead82
JB		 3928 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3929 info->snd_portid, info->snd_seq, 0,
66266b3a 3930 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3931 nlmsg_free(msg);
3932 return -ENOBUFS;
3933 }
3b85875a 3934
4c476991 3935 return genlmsg_reply(msg, info);
5727ef1b
JB		 3936}
3937
77ee7c89
JB		 3938int cfg80211_check_station_change(struct wiphy *wiphy,
3939 struct station_parameters *params,
3940 enum cfg80211_station_type statype)
3941{
3942 if (params->listen_interval != -1)
3943 return -EINVAL;
c72e1140
AN		 3944 if (params->aid &&
3945 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3946 return -EINVAL;
3947
3948 /* When you run into this, adjust the code below for the new flag */
3949 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3950
3951 switch (statype) {
eef941e6
TP		 3952 case CFG80211_STA_MESH_PEER_KERNEL:
3953 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3954 /*
3955 * No ignoring the TDLS flag here -- the userspace mesh
3956 * code doesn't have the bug of including TDLS in the
3957 * mask everywhere.
3958 */
3959 if (params->sta_flags_mask &
3960 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3961 BIT(NL80211_STA_FLAG_MFP) |
3962 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3963 return -EINVAL;
3964 break;
3965 case CFG80211_STA_TDLS_PEER_SETUP:
3966 case CFG80211_STA_TDLS_PEER_ACTIVE:
3967 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3968 return -EINVAL;
3969 /* ignore since it can't change */
3970 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3971 break;
3972 default:
3973 /* disallow mesh-specific things */
3974 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3975 return -EINVAL;
3976 if (params->local_pm)
3977 return -EINVAL;
3978 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3979 return -EINVAL;
3980 }
3981
3982 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3983 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3984 /* TDLS can't be set, ... */
3985 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3986 return -EINVAL;
3987 /*
3988 * ... but don't bother the driver with it. This works around
3989 * a hostapd/wpa_supplicant issue -- it always includes the
3990 * TLDS_PEER flag in the mask even for AP mode.
3991 */
3992 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3993 }
3994
3995 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3996 /* reject other things that can't change */
3997 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3998 return -EINVAL;
3999 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4000 return -EINVAL;
4001 if (params->supported_rates)
4002 return -EINVAL;
4003 if (params->ext_capab || params->ht_capa || params->vht_capa)
4004 return -EINVAL;
4005 }
4006
4007 if (statype != CFG80211_STA_AP_CLIENT) {
4008 if (params->vlan)
4009 return -EINVAL;
4010 }
4011
4012 switch (statype) {
4013 case CFG80211_STA_AP_MLME_CLIENT:
4014 /* Use this only for authorizing/unauthorizing a station */
4015 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4016 return -EOPNOTSUPP;
4017 break;
4018 case CFG80211_STA_AP_CLIENT:
4019 /* accept only the listed bits */
4020 if (params->sta_flags_mask &
4021 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4022 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4023 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4024 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4025 BIT(NL80211_STA_FLAG_WME) |
4026 BIT(NL80211_STA_FLAG_MFP)))
4027 return -EINVAL;
4028
4029 /* but authenticated/associated only if driver handles it */
4030 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4031 params->sta_flags_mask &
4032 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4033 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4034 return -EINVAL;
4035 break;
4036 case CFG80211_STA_IBSS:
4037 case CFG80211_STA_AP_STA:
4038 /* reject any changes other than AUTHORIZED */
4039 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4040 return -EINVAL;
4041 break;
4042 case CFG80211_STA_TDLS_PEER_SETUP:
4043 /* reject any changes other than AUTHORIZED or WME */
4044 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4045 BIT(NL80211_STA_FLAG_WME)))
4046 return -EINVAL;
4047 /* force (at least) rates when authorizing */
4048 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4049 !params->supported_rates)
4050 return -EINVAL;
4051 break;
4052 case CFG80211_STA_TDLS_PEER_ACTIVE:
4053 /* reject any changes */
4054 return -EINVAL;
eef941e6 4055 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 4056 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4057 return -EINVAL;
4058 break;
eef941e6 4059 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 4060 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4061 return -EINVAL;
4062 break;
4063 }
4064
4065 return 0;
4066}
4067EXPORT_SYMBOL(cfg80211_check_station_change);
4068
5727ef1b 4069/*
c258d2de 4070 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 4071 */
80b99899
JB		 4072static struct net_device *get_vlan(struct genl_info *info,
4073 struct cfg80211_registered_device *rdev)
5727ef1b 4074{
463d0183 4075 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 4076 struct net_device *v;
4077 int ret;
4078
4079 if (!vlanattr)
4080 return NULL;
4081
4082 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4083 if (!v)
4084 return ERR_PTR(-ENODEV);
4085
4086 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4087 ret = -EINVAL;
4088 goto error;
5727ef1b 4089 }
80b99899 4090
77ee7c89
JB		 4091 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4092 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4093 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4094 ret = -EINVAL;
4095 goto error;
4096 }
4097
80b99899
JB		 4098 if (!netif_running(v)) {
4099 ret = -ENETDOWN;
4100 goto error;
4101 }
4102
4103 return v;
4104 error:
4105 dev_put(v);
4106 return ERR_PTR(ret);
5727ef1b
JB		 4107}
4108
94e860f1
JB		 4109static const struct nla_policy
4110nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4111 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4112 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4113};
4114
ff276691
JB		 4115static int nl80211_parse_sta_wme(struct genl_info *info,
4116 struct station_parameters *params)
df881293 4117{
df881293
JM		 4118 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4119 struct nlattr *nla;
4120 int err;
4121
df881293
JM		 4122 /* parse WME attributes if present */
4123 if (!info->attrs[NL80211_ATTR_STA_WME])
4124 return 0;
4125
4126 nla = info->attrs[NL80211_ATTR_STA_WME];
4127 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4128 nl80211_sta_wme_policy);
4129 if (err)
4130 return err;
4131
4132 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4133 params->uapsd_queues = nla_get_u8(
4134 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4135 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4136 return -EINVAL;
4137
4138 if (tb[NL80211_STA_WME_MAX_SP])
4139 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4140
4141 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4142 return -EINVAL;
4143
4144 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4145
4146 return 0;
4147}
4148
c01fc9ad
SD		 4149static int nl80211_parse_sta_channel_info(struct genl_info *info,
4150 struct station_parameters *params)
4151{
4152 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4153 params->supported_channels =
4154 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4155 params->supported_channels_len =
4156 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4157 /*
4158 * Need to include at least one (first channel, number of
4159 * channels) tuple for each subband, and must have proper
4160 * tuples for the rest of the data as well.
4161 */
4162 if (params->supported_channels_len < 2)
4163 return -EINVAL;
4164 if (params->supported_channels_len % 2)
4165 return -EINVAL;
4166 }
4167
4168 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4169 params->supported_oper_classes =
4170 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4171 params->supported_oper_classes_len =
4172 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4173 /*
4174 * The value of the Length field of the Supported Operating
4175 * Classes element is between 2 and 253.
4176 */
4177 if (params->supported_oper_classes_len < 2 ||
4178 params->supported_oper_classes_len > 253)
4179 return -EINVAL;
4180 }
4181 return 0;
4182}
4183
ff276691
JB		 4184static int nl80211_set_station_tdls(struct genl_info *info,
4185 struct station_parameters *params)
4186{
c01fc9ad 4187 int err;
ff276691 4188 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4189 if (info->attrs[NL80211_ATTR_PEER_AID])
4190 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4191 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4192 params->ht_capa =
4193 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4194 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4195 params->vht_capa =
4196 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4197
c01fc9ad
SD		 4198 err = nl80211_parse_sta_channel_info(info, params);
4199 if (err)
4200 return err;
4201
ff276691
JB		 4202 return nl80211_parse_sta_wme(info, params);
4203}
4204
5727ef1b
JB		 4205static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4206{
4c476991 4207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4208 struct net_device *dev = info->user_ptr[1];
5727ef1b 4209 struct station_parameters params;
77ee7c89
JB		 4210 u8 *mac_addr;
4211 int err;
5727ef1b
JB		 4212
4213 memset(&params, 0, sizeof(params));
4214
4215 params.listen_interval = -1;
4216
77ee7c89
JB		 4217 if (!rdev->ops->change_station)
4218 return -EOPNOTSUPP;
4219
5727ef1b
JB		 4220 if (info->attrs[NL80211_ATTR_STA_AID])
4221 return -EINVAL;
4222
4223 if (!info->attrs[NL80211_ATTR_MAC])
4224 return -EINVAL;
4225
4226 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4227
4228 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4229 params.supported_rates =
4230 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4231 params.supported_rates_len =
4232 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4233 }
4234
9d62a986
JM		 4235 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4236 params.capability =
4237 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4238 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4239 }
4240
4241 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4242 params.ext_capab =
4243 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4244 params.ext_capab_len =
4245 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4246 }
4247
df881293 4248 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4249 return -EINVAL;
36aedc90 4250
bdd3ae3d 4251 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4252 return -EINVAL;
4253
f8bacc21 4254 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4255 params.plink_action =
f8bacc21
JB		 4256 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4257 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4258 return -EINVAL;
4259 }
2ec600d6 4260
f8bacc21 4261 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4262 params.plink_state =
f8bacc21
JB		 4263 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4264 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4265 return -EINVAL;
4266 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4267 }
9c3990aa 4268
3b1c5a53
MP		 4269 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4270 enum nl80211_mesh_power_mode pm = nla_get_u32(
4271 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4272
4273 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4274 pm > NL80211_MESH_POWER_MAX)
4275 return -EINVAL;
4276
4277 params.local_pm = pm;
4278 }
4279
77ee7c89
JB		 4280 /* Include parameters for TDLS peer (will check later) */
4281 err = nl80211_set_station_tdls(info, &params);
4282 if (err)
4283 return err;
4284
4285 params.vlan = get_vlan(info, rdev);
4286 if (IS_ERR(params.vlan))
4287 return PTR_ERR(params.vlan);
4288
a97f4424
JB		 4289 switch (dev->ieee80211_ptr->iftype) {
4290 case NL80211_IFTYPE_AP:
4291 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4292 case NL80211_IFTYPE_P2P_GO:
074ac8df 4293 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4294 case NL80211_IFTYPE_STATION:
267335d6 4295 case NL80211_IFTYPE_ADHOC:
a97f4424 4296 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4297 break;
4298 default:
77ee7c89
JB		 4299 err = -EOPNOTSUPP;
4300 goto out_put_vlan;
034d655e
JB		 4301 }
4302
77ee7c89 4303 /* driver will call cfg80211_check_station_change() */
e35e4d28 4304 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4305
77ee7c89 4306 out_put_vlan:
5727ef1b
JB		 4307 if (params.vlan)
4308 dev_put(params.vlan);
3b85875a 4309
5727ef1b
JB		 4310 return err;
4311}
4312
4313static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4314{
4c476991 4315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4316 int err;
4c476991 4317 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4318 struct station_parameters params;
4319 u8 *mac_addr = NULL;
4320
4321 memset(&params, 0, sizeof(params));
4322
984c311b
JB		 4323 if (!rdev->ops->add_station)
4324 return -EOPNOTSUPP;
4325
5727ef1b
JB		 4326 if (!info->attrs[NL80211_ATTR_MAC])
4327 return -EINVAL;
4328
5727ef1b
JB		 4329 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4330 return -EINVAL;
4331
4332 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4333 return -EINVAL;
4334
5e4b6f56
JM		 4335 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4336 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4337 return -EINVAL;
4338
5727ef1b
JB		 4339 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4340 params.supported_rates =
4341 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4342 params.supported_rates_len =
4343 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4344 params.listen_interval =
4345 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4346
3d124ea2 4347 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4348 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4349 else
4350 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4351 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4352 return -EINVAL;
51b50fbe 4353
9d62a986
JM		 4354 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4355 params.capability =
4356 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4357 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4358 }
4359
4360 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4361 params.ext_capab =
4362 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4363 params.ext_capab_len =
4364 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4365 }
4366
36aedc90
JM		 4367 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4368 params.ht_capa =
4369 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4370
f461be3e
MP		 4371 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4372 params.vht_capa =
4373 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4374
60f4a7b1
MK		 4375 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4376 params.opmode_notif_used = true;
4377 params.opmode_notif =
4378 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4379 }
4380
f8bacc21 4381 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4382 params.plink_action =
f8bacc21
JB		 4383 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4384 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4385 return -EINVAL;
4386 }
96b78dff 4387
c01fc9ad
SD		 4388 err = nl80211_parse_sta_channel_info(info, &params);
4389 if (err)
4390 return err;
4391
ff276691
JB		 4392 err = nl80211_parse_sta_wme(info, &params);
4393 if (err)
4394 return err;
bdd90d5e 4395
bdd3ae3d 4396 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4397 return -EINVAL;
4398
77ee7c89
JB		 4399 /* When you run into this, adjust the code below for the new flag */
4400 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4401
bdd90d5e
JB		 4402 switch (dev->ieee80211_ptr->iftype) {
4403 case NL80211_IFTYPE_AP:
4404 case NL80211_IFTYPE_AP_VLAN:
4405 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4406 /* ignore WME attributes if iface/sta is not capable */
4407 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4408 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4409 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4410
bdd90d5e 4411 /* TDLS peers cannot be added */
3d124ea2
JM		 4412 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4413 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4414 return -EINVAL;
bdd90d5e
JB		 4415 /* but don't bother the driver with it */
4416 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4417
d582cffb
JB		 4418 /* allow authenticated/associated only if driver handles it */
4419 if (!(rdev->wiphy.features &
4420 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4421 params.sta_flags_mask &
4422 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4423 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4424 return -EINVAL;
4425
bdd90d5e
JB		 4426 /* must be last in here for error handling */
4427 params.vlan = get_vlan(info, rdev);
4428 if (IS_ERR(params.vlan))
4429 return PTR_ERR(params.vlan);
4430 break;
4431 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4432 /* ignore uAPSD data */
4433 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4434
d582cffb
JB		 4435 /* associated is disallowed */
4436 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4437 return -EINVAL;
bdd90d5e 4438 /* TDLS peers cannot be added */
3d124ea2
JM		 4439 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4440 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4441 return -EINVAL;
4442 break;
4443 case NL80211_IFTYPE_STATION:
93d08f0b 4444 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4445 /* ignore uAPSD data */
4446 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4447
77ee7c89
JB		 4448 /* these are disallowed */
4449 if (params.sta_flags_mask &
4450 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4451 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4452 return -EINVAL;
bdd90d5e
JB		 4453 /* Only TDLS peers can be added */
4454 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4455 return -EINVAL;
4456 /* Can only add if TDLS ... */
4457 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4458 return -EOPNOTSUPP;
4459 /* ... with external setup is supported */
4460 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4461 return -EOPNOTSUPP;
77ee7c89
JB		 4462 /*
4463 * Older wpa_supplicant versions always mark the TDLS peer
4464 * as authorized, but it shouldn't yet be.
4465 */
4466 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4467 break;
4468 default:
4469 return -EOPNOTSUPP;
c75786c9
EP		 4470 }
4471
bdd90d5e 4472 /* be aware of params.vlan when changing code here */
5727ef1b 4473
e35e4d28 4474 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4475
5727ef1b
JB		 4476 if (params.vlan)
4477 dev_put(params.vlan);
5727ef1b
JB		 4478 return err;
4479}
4480
4481static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4482{
4c476991
JB		 4483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4484 struct net_device *dev = info->user_ptr[1];
89c771e5
JM		 4485 struct station_del_parameters params;
4486
4487 memset(&params, 0, sizeof(params));
5727ef1b
JB		 4488
4489 if (info->attrs[NL80211_ATTR_MAC])
89c771e5 4490 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5727ef1b 4491
e80cf853 4492 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4496 return -EINVAL;
5727ef1b 4497
4c476991
JB		 4498 if (!rdev->ops->del_station)
4499 return -EOPNOTSUPP;
3b85875a 4500
98856866
JM		 4501 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4502 params.subtype =
4503 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4504 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4505 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4506 return -EINVAL;
4507 } else {
4508 /* Default to Deauthentication frame */
4509 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4510 }
4511
4512 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4513 params.reason_code =
4514 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4515 if (params.reason_code == 0)
4516 return -EINVAL; /* 0 is reserved */
4517 } else {
4518 /* Default to reason code 2 */
4519 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4520 }
4521
89c771e5 4522 return rdev_del_station(rdev, dev, &params);
5727ef1b
JB		 4523}
4524
15e47304 4525static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4526 int flags, struct net_device *dev,
4527 u8 *dst, u8 *next_hop,
4528 struct mpath_info *pinfo)
4529{
4530 void *hdr;
4531 struct nlattr *pinfoattr;
4532
1ef4c850 4533 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
2ec600d6
LCC		 4534 if (!hdr)
4535 return -1;
4536
9360ffd1
DM		 4537 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4538 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4539 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4540 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4541 goto nla_put_failure;
f5ea9120 4542
2ec600d6
LCC		 4543 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4544 if (!pinfoattr)
4545 goto nla_put_failure;
9360ffd1
DM		 4546 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4547 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4548 pinfo->frame_qlen))
4549 goto nla_put_failure;
4550 if (((pinfo->filled & MPATH_INFO_SN) &&
4551 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4552 ((pinfo->filled & MPATH_INFO_METRIC) &&
4553 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4554 pinfo->metric)) ||
4555 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4556 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4557 pinfo->exptime)) ||
4558 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4559 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4560 pinfo->flags)) ||
4561 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4562 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4563 pinfo->discovery_timeout)) ||
4564 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4565 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4566 pinfo->discovery_retries)))
4567 goto nla_put_failure;
2ec600d6
LCC		 4568
4569 nla_nest_end(msg, pinfoattr);
4570
4571 return genlmsg_end(msg, hdr);
4572
4573 nla_put_failure:
bc3ed28c
TG		 4574 genlmsg_cancel(msg, hdr);
4575 return -EMSGSIZE;
2ec600d6
LCC		 4576}
4577
4578static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4579 struct netlink_callback *cb)
2ec600d6 4580{
2ec600d6 4581 struct mpath_info pinfo;
1b8ec87a 4582 struct cfg80211_registered_device *rdev;
97990a06 4583 struct wireless_dev *wdev;
2ec600d6
LCC		 4584 u8 dst[ETH_ALEN];
4585 u8 next_hop[ETH_ALEN];
97990a06 4586 int path_idx = cb->args[2];
2ec600d6 4587 int err;
2ec600d6 4588
1b8ec87a 4589 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4590 if (err)
4591 return err;
bba95fef 4592
1b8ec87a 4593 if (!rdev->ops->dump_mpath) {
eec60b03 4594 err = -EOPNOTSUPP;
bba95fef
JB		 4595 goto out_err;
4596 }
4597
97990a06 4598 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4599 err = -EOPNOTSUPP;
0448b5fc 4600 goto out_err;
eec60b03
JM		 4601 }
4602
bba95fef 4603 while (1) {
1b8ec87a 4604 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4605 next_hop, &pinfo);
bba95fef 4606 if (err == -ENOENT)
2ec600d6 4607 break;
bba95fef 4608 if (err)
3b85875a 4609 goto out_err;
2ec600d6 4610
15e47304 4611 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4612 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4613 wdev->netdev, dst, next_hop,
bba95fef
JB		 4614 &pinfo) < 0)
4615 goto out;
2ec600d6 4616
bba95fef 4617 path_idx++;
2ec600d6 4618 }
2ec600d6 4619
2ec600d6 4620
bba95fef 4621 out:
97990a06 4622 cb->args[2] = path_idx;
bba95fef 4623 err = skb->len;
bba95fef 4624 out_err:
1b8ec87a 4625 nl80211_finish_wdev_dump(rdev);
bba95fef 4626 return err;
2ec600d6
LCC		 4627}
4628
4629static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4630{
4c476991 4631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4632 int err;
4c476991 4633 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4634 struct mpath_info pinfo;
4635 struct sk_buff *msg;
4636 u8 *dst = NULL;
4637 u8 next_hop[ETH_ALEN];
4638
4639 memset(&pinfo, 0, sizeof(pinfo));
4640
4641 if (!info->attrs[NL80211_ATTR_MAC])
4642 return -EINVAL;
4643
4644 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4645
4c476991
JB		 4646 if (!rdev->ops->get_mpath)
4647 return -EOPNOTSUPP;
2ec600d6 4648
4c476991
JB		 4649 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4650 return -EOPNOTSUPP;
eec60b03 4651
e35e4d28 4652 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4653 if (err)
4c476991 4654 return err;
2ec600d6 4655
fd2120ca 4656 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4657 if (!msg)
4c476991 4658 return -ENOMEM;
2ec600d6 4659
15e47304 4660 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4661 dev, dst, next_hop, &pinfo) < 0) {
4662 nlmsg_free(msg);
4663 return -ENOBUFS;
4664 }
3b85875a 4665
4c476991 4666 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4667}
4668
4669static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4670{
4c476991
JB		 4671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4672 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4673 u8 *dst = NULL;
4674 u8 *next_hop = NULL;
4675
4676 if (!info->attrs[NL80211_ATTR_MAC])
4677 return -EINVAL;
4678
4679 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4680 return -EINVAL;
4681
4682 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4683 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4684
4c476991
JB		 4685 if (!rdev->ops->change_mpath)
4686 return -EOPNOTSUPP;
35a8efe1 4687
4c476991
JB		 4688 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4689 return -EOPNOTSUPP;
2ec600d6 4690
e35e4d28 4691 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4692}
4c476991 4693
2ec600d6
LCC		 4694static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4695{
4c476991
JB		 4696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4697 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4698 u8 *dst = NULL;
4699 u8 *next_hop = NULL;
4700
4701 if (!info->attrs[NL80211_ATTR_MAC])
4702 return -EINVAL;
4703
4704 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4705 return -EINVAL;
4706
4707 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4708 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4709
4c476991
JB		 4710 if (!rdev->ops->add_mpath)
4711 return -EOPNOTSUPP;
35a8efe1 4712
4c476991
JB		 4713 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4714 return -EOPNOTSUPP;
2ec600d6 4715
e35e4d28 4716 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4717}
4718
4719static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4720{
4c476991
JB		 4721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4722 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4723 u8 *dst = NULL;
4724
4725 if (info->attrs[NL80211_ATTR_MAC])
4726 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4727
4c476991
JB		 4728 if (!rdev->ops->del_mpath)
4729 return -EOPNOTSUPP;
3b85875a 4730
e35e4d28 4731 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4732}
4733
66be7d2b
HR		 4734static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4735{
4736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4737 int err;
4738 struct net_device *dev = info->user_ptr[1];
4739 struct mpath_info pinfo;
4740 struct sk_buff *msg;
4741 u8 *dst = NULL;
4742 u8 mpp[ETH_ALEN];
4743
4744 memset(&pinfo, 0, sizeof(pinfo));
4745
4746 if (!info->attrs[NL80211_ATTR_MAC])
4747 return -EINVAL;
4748
4749 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4750
4751 if (!rdev->ops->get_mpp)
4752 return -EOPNOTSUPP;
4753
4754 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4755 return -EOPNOTSUPP;
4756
4757 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4758 if (err)
4759 return err;
4760
4761 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4762 if (!msg)
4763 return -ENOMEM;
4764
4765 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4766 dev, dst, mpp, &pinfo) < 0) {
4767 nlmsg_free(msg);
4768 return -ENOBUFS;
4769 }
4770
4771 return genlmsg_reply(msg, info);
4772}
4773
4774static int nl80211_dump_mpp(struct sk_buff *skb,
4775 struct netlink_callback *cb)
4776{
4777 struct mpath_info pinfo;
4778 struct cfg80211_registered_device *rdev;
4779 struct wireless_dev *wdev;
4780 u8 dst[ETH_ALEN];
4781 u8 mpp[ETH_ALEN];
4782 int path_idx = cb->args[2];
4783 int err;
4784
4785 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4786 if (err)
4787 return err;
4788
4789 if (!rdev->ops->dump_mpp) {
4790 err = -EOPNOTSUPP;
4791 goto out_err;
4792 }
4793
4794 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4795 err = -EOPNOTSUPP;
4796 goto out_err;
4797 }
4798
4799 while (1) {
4800 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4801 mpp, &pinfo);
4802 if (err == -ENOENT)
4803 break;
4804 if (err)
4805 goto out_err;
4806
4807 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4808 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4809 wdev->netdev, dst, mpp,
4810 &pinfo) < 0)
4811 goto out;
4812
4813 path_idx++;
4814 }
4815
4816 out:
4817 cb->args[2] = path_idx;
4818 err = skb->len;
4819 out_err:
4820 nl80211_finish_wdev_dump(rdev);
4821 return err;
4822}
4823
9f1ba906
JM		 4824static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4825{
4c476991
JB		 4826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4827 struct net_device *dev = info->user_ptr[1];
c56589ed 4828 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4829 struct bss_parameters params;
c56589ed 4830 int err;
9f1ba906
JM		 4831
4832 memset(&params, 0, sizeof(params));
4833 /* default to not changing parameters */
4834 params.use_cts_prot = -1;
4835 params.use_short_preamble = -1;
4836 params.use_short_slot_time = -1;
fd8aaaf3 4837 params.ap_isolate = -1;
50b12f59 4838 params.ht_opmode = -1;
53cabad7
JB		 4839 params.p2p_ctwindow = -1;
4840 params.p2p_opp_ps = -1;
9f1ba906
JM		 4841
4842 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4843 params.use_cts_prot =
4844 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4845 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4846 params.use_short_preamble =
4847 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4848 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4849 params.use_short_slot_time =
4850 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4851 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4852 params.basic_rates =
4853 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4854 params.basic_rates_len =
4855 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4856 }
fd8aaaf3
FF		 4857 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4858 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4859 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4860 params.ht_opmode =
4861 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4862
53cabad7
JB		 4863 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4864 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4865 return -EINVAL;
4866 params.p2p_ctwindow =
4867 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4868 if (params.p2p_ctwindow < 0)
4869 return -EINVAL;
4870 if (params.p2p_ctwindow != 0 &&
4871 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4872 return -EINVAL;
4873 }
4874
4875 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4876 u8 tmp;
4877
4878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4879 return -EINVAL;
4880 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4881 if (tmp > 1)
4882 return -EINVAL;
4883 params.p2p_opp_ps = tmp;
4884 if (params.p2p_opp_ps &&
4885 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4886 return -EINVAL;
4887 }
4888
4c476991
JB		 4889 if (!rdev->ops->change_bss)
4890 return -EOPNOTSUPP;
9f1ba906 4891
074ac8df 4892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4894 return -EOPNOTSUPP;
3b85875a 4895
c56589ed
SW		 4896 wdev_lock(wdev);
4897 err = rdev_change_bss(rdev, dev, &params);
4898 wdev_unlock(wdev);
4899
4900 return err;
9f1ba906
JM		 4901}
4902
b54452b0 4903static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4904 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4905 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4906 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4907 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4908 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4909 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4910 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4911};
4912
4913static int parse_reg_rule(struct nlattr *tb[],
4914 struct ieee80211_reg_rule *reg_rule)
4915{
4916 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4917 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4918
4919 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4920 return -EINVAL;
4921 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4922 return -EINVAL;
4923 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4924 return -EINVAL;
b0dfd2ea
JD		 4925 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4926 return -EINVAL;
b2e1b302
LR		 4927 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4928 return -EINVAL;
4929
4930 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4931
4932 freq_range->start_freq_khz =
4933 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4934 freq_range->end_freq_khz =
4935 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4936 freq_range->max_bandwidth_khz =
4937 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4938
4939 power_rule->max_eirp =
4940 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4941
4942 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4943 power_rule->max_antenna_gain =
4944 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4945
089027e5
JD		 4946 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4947 reg_rule->dfs_cac_ms =
4948 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4949
b2e1b302
LR		 4950 return 0;
4951}
4952
4953static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4954{
b2e1b302 4955 char *data = NULL;
57b5ce07 4956 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4957
80778f18
LR		 4958 /*
4959 * You should only get this when cfg80211 hasn't yet initialized
4960 * completely when built-in to the kernel right between the time
4961 * window between nl80211_init() and regulatory_init(), if that is
4962 * even possible.
4963 */
458f4f9e 4964 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4965 return -EINPROGRESS;
80778f18 4966
57b5ce07
LR		 4967 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4968 user_reg_hint_type =
4969 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4970 else
4971 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4972
4973 switch (user_reg_hint_type) {
4974 case NL80211_USER_REG_HINT_USER:
4975 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4976 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4977 return -EINVAL;
4978
4979 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4980 return regulatory_hint_user(data, user_reg_hint_type);
4981 case NL80211_USER_REG_HINT_INDOOR:
4982 return regulatory_hint_indoor_user();
57b5ce07
LR		 4983 default:
4984 return -EINVAL;
4985 }
b2e1b302
LR		 4986}
4987
24bdd9f4 4988static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4989 struct genl_info *info)
93da9cc1 4990{
4c476991 4991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4992 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4993 struct wireless_dev *wdev = dev->ieee80211_ptr;
4994 struct mesh_config cur_params;
4995 int err = 0;
93da9cc1 4996 void *hdr;
4997 struct nlattr *pinfoattr;
4998 struct sk_buff *msg;
4999
29cbe68c
JB		 5000 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5001 return -EOPNOTSUPP;
5002
24bdd9f4 5003 if (!rdev->ops->get_mesh_config)
4c476991 5004 return -EOPNOTSUPP;
f3f92586 5005
29cbe68c
JB		 5006 wdev_lock(wdev);
5007 /* If not connected, get default parameters */
5008 if (!wdev->mesh_id_len)
5009 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5010 else
e35e4d28 5011 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 5012 wdev_unlock(wdev);
5013
93da9cc1 5014 if (err)
4c476991 5015 return err;
93da9cc1 5016
5017 /* Draw up a netlink message to send back */
fd2120ca 5018 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5019 if (!msg)
5020 return -ENOMEM;
15e47304 5021 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 5022 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 5023 if (!hdr)
efe1cf0c 5024 goto out;
24bdd9f4 5025 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 5026 if (!pinfoattr)
5027 goto nla_put_failure;
9360ffd1
DM		 5028 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5029 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5030 cur_params.dot11MeshRetryTimeout) ||
5031 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5032 cur_params.dot11MeshConfirmTimeout) ||
5033 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5034 cur_params.dot11MeshHoldingTimeout) ||
5035 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5036 cur_params.dot11MeshMaxPeerLinks) ||
5037 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5038 cur_params.dot11MeshMaxRetries) ||
5039 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5040 cur_params.dot11MeshTTL) ||
5041 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5042 cur_params.element_ttl) ||
5043 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5044 cur_params.auto_open_plinks) ||
7eab0f64
JL		 5045 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5046 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 5047 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5048 cur_params.dot11MeshHWMPmaxPREQretries) ||
5049 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5050 cur_params.path_refresh_time) ||
5051 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5052 cur_params.min_discovery_timeout) ||
5053 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5054 cur_params.dot11MeshHWMPactivePathTimeout) ||
5055 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5056 cur_params.dot11MeshHWMPpreqMinInterval) ||
5057 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5058 cur_params.dot11MeshHWMPperrMinInterval) ||
5059 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5060 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5061 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5062 cur_params.dot11MeshHWMPRootMode) ||
5063 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5064 cur_params.dot11MeshHWMPRannInterval) ||
5065 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5066 cur_params.dot11MeshGateAnnouncementProtocol) ||
5067 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5068 cur_params.dot11MeshForwarding) ||
5069 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 5070 cur_params.rssi_threshold) ||
5071 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5072 cur_params.ht_opmode) ||
5073 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5074 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5075 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5076 cur_params.dot11MeshHWMProotInterval) ||
5077 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 5078 cur_params.dot11MeshHWMPconfirmationInterval) ||
5079 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5080 cur_params.power_mode) ||
5081 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 5082 cur_params.dot11MeshAwakeWindowDuration) ||
5083 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5084 cur_params.plink_timeout))
9360ffd1 5085 goto nla_put_failure;
93da9cc1 5086 nla_nest_end(msg, pinfoattr);
5087 genlmsg_end(msg, hdr);
4c476991 5088 return genlmsg_reply(msg, info);
93da9cc1 5089
3b85875a 5090 nla_put_failure:
93da9cc1 5091 genlmsg_cancel(msg, hdr);
efe1cf0c 5092 out:
d080e275 5093 nlmsg_free(msg);
4c476991 5094 return -ENOBUFS;
93da9cc1 5095}
5096
b54452b0 5097static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 5098 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5099 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5100 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5101 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5102 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5103 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 5104 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 5105 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 5106 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5107 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5108 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5109 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5110 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5111 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5112 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5113 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5114 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5115 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5116 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5117 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5118 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5119 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5120 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5121 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5122 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5123 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5124 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5125 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5126};
5127
c80d545d
JC		 5128static const struct nla_policy
5129 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5130 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5131 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5132 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5133 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5134 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5135 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5136 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5137 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5138 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5139};
5140
24bdd9f4 5141static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5142 struct mesh_config *cfg,
5143 u32 *mask_out)
93da9cc1 5144{
93da9cc1 5145 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5146 u32 mask = 0;
93da9cc1 5147
ea54fba2
MP		 5148#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5149do { \
5150 if (tb[attr]) { \
5151 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5152 return -EINVAL; \
5153 cfg->param = fn(tb[attr]); \
5154 mask |= (1 << (attr - 1)); \
5155 } \
5156} while (0)
bd90fdcc
JB		 5157
5158
24bdd9f4 5159 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5160 return -EINVAL;
5161 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5162 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5163 nl80211_meshconf_params_policy))
93da9cc1 5164 return -EINVAL;
5165
93da9cc1 5166 /* This makes sure that there aren't more than 32 mesh config
5167 * parameters (otherwise our bitfield scheme would not work.) */
5168 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5169
5170 /* Fill in the params struct */
ea54fba2 5171 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5172 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5173 nla_get_u16);
ea54fba2 5174 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5175 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5176 nla_get_u16);
ea54fba2 5177 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5178 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5179 nla_get_u16);
ea54fba2 5180 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5181 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5182 nla_get_u16);
ea54fba2 5183 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5184 mask, NL80211_MESHCONF_MAX_RETRIES,
5185 nla_get_u8);
ea54fba2 5186 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5187 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5189 mask, NL80211_MESHCONF_ELEMENT_TTL,
5190 nla_get_u8);
ea54fba2 5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5192 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5193 nla_get_u8);
ea54fba2
MP		 5194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5195 1, 255, mask,
a4f606ea
CYY		 5196 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5197 nla_get_u32);
ea54fba2 5198 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5199 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5200 nla_get_u8);
ea54fba2 5201 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5202 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5203 nla_get_u32);
ea54fba2 5204 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5205 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5206 nla_get_u16);
ea54fba2
MP		 5207 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5208 1, 65535, mask,
a4f606ea
CYY		 5209 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5210 nla_get_u32);
93da9cc1 5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5212 1, 65535, mask,
5213 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5214 nla_get_u16);
dca7e943 5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5216 1, 65535, mask,
5217 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5218 nla_get_u16);
93da9cc1 5219 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5220 dot11MeshHWMPnetDiameterTraversalTime,
5221 1, 65535, mask,
a4f606ea
CYY		 5222 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5223 nla_get_u16);
ea54fba2
MP		 5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5225 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5226 nla_get_u8);
5227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5228 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5229 nla_get_u16);
63c5723b 5230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5231 dot11MeshGateAnnouncementProtocol, 0, 1,
5232 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5233 nla_get_u8);
ea54fba2 5234 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5235 mask, NL80211_MESHCONF_FORWARDING,
5236 nla_get_u8);
83374fe9 5237 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5238 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5239 nla_get_s32);
ea54fba2 5240 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5241 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5242 nla_get_u16);
5243 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5244 1, 65535, mask,
ac1073a6
CYY		 5245 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5246 nla_get_u32);
ea54fba2 5247 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5248 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5249 nla_get_u16);
5250 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5251 dot11MeshHWMPconfirmationInterval,
5252 1, 65535, mask,
728b19e5 5253 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5254 nla_get_u16);
3b1c5a53
MP		 5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5256 NL80211_MESH_POWER_ACTIVE,
5257 NL80211_MESH_POWER_MAX,
5258 mask, NL80211_MESHCONF_POWER_MODE,
5259 nla_get_u32);
5260 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5261 0, 65535, mask,
5262 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5263 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5264 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5265 nla_get_u32);
bd90fdcc
JB		 5266 if (mask_out)
5267 *mask_out = mask;
c80d545d 5268
bd90fdcc
JB		 5269 return 0;
5270
5271#undef FILL_IN_MESH_PARAM_IF_SET
5272}
5273
c80d545d
JC		 5274static int nl80211_parse_mesh_setup(struct genl_info *info,
5275 struct mesh_setup *setup)
5276{
bb2798d4 5277 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5278 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5279
5280 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5281 return -EINVAL;
5282 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5283 info->attrs[NL80211_ATTR_MESH_SETUP],
5284 nl80211_mesh_setup_params_policy))
5285 return -EINVAL;
5286
d299a1f2
JC		 5287 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5288 setup->sync_method =
5289 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5290 IEEE80211_SYNC_METHOD_VENDOR :
5291 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5292
c80d545d
JC		 5293 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5294 setup->path_sel_proto =
5295 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5296 IEEE80211_PATH_PROTOCOL_VENDOR :
5297 IEEE80211_PATH_PROTOCOL_HWMP;
5298
5299 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5300 setup->path_metric =
5301 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5302 IEEE80211_PATH_METRIC_VENDOR :
5303 IEEE80211_PATH_METRIC_AIRTIME;
5304
581a8b0f
JC		 5305
5306 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5307 struct nlattr *ieattr =
581a8b0f 5308 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5309 if (!is_valid_ie_attr(ieattr))
5310 return -EINVAL;
581a8b0f
JC		 5311 setup->ie = nla_data(ieattr);
5312 setup->ie_len = nla_len(ieattr);
c80d545d 5313 }
bb2798d4
TP		 5314 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5315 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5316 return -EINVAL;
5317 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5318 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5319 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5320 if (setup->is_secure)
5321 setup->user_mpm = true;
c80d545d 5322
6e16d90b
CT		 5323 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5324 if (!setup->user_mpm)
5325 return -EINVAL;
5326 setup->auth_id =
5327 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5328 }
5329
c80d545d
JC		 5330 return 0;
5331}
5332
24bdd9f4 5333static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5334 struct genl_info *info)
bd90fdcc
JB		 5335{
5336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5337 struct net_device *dev = info->user_ptr[1];
29cbe68c 5338 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5339 struct mesh_config cfg;
5340 u32 mask;
5341 int err;
5342
29cbe68c
JB		 5343 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5344 return -EOPNOTSUPP;
5345
24bdd9f4 5346 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5347 return -EOPNOTSUPP;
5348
24bdd9f4 5349 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5350 if (err)
5351 return err;
5352
29cbe68c
JB		 5353 wdev_lock(wdev);
5354 if (!wdev->mesh_id_len)
5355 err = -ENOLINK;
5356
5357 if (!err)
e35e4d28 5358 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5359
5360 wdev_unlock(wdev);
5361
5362 return err;
93da9cc1 5363}
5364
ad30ca2c
AN		 5365static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5366 struct sk_buff *msg)
f130347c 5367{
f130347c
LR		 5368 struct nlattr *nl_reg_rules;
5369 unsigned int i;
f130347c 5370
458f4f9e
JB		 5371 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5372 (regdom->dfs_region &&
5373 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
ad30ca2c 5374 goto nla_put_failure;
458f4f9e 5375
f130347c
LR		 5376 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5377 if (!nl_reg_rules)
ad30ca2c 5378 goto nla_put_failure;
f130347c 5379
458f4f9e 5380 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5381 struct nlattr *nl_reg_rule;
5382 const struct ieee80211_reg_rule *reg_rule;
5383 const struct ieee80211_freq_range *freq_range;
5384 const struct ieee80211_power_rule *power_rule;
97524820 5385 unsigned int max_bandwidth_khz;
f130347c 5386
458f4f9e 5387 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5388 freq_range = &reg_rule->freq_range;
5389 power_rule = &reg_rule->power_rule;
5390
5391 nl_reg_rule = nla_nest_start(msg, i);
5392 if (!nl_reg_rule)
ad30ca2c 5393 goto nla_put_failure;
f130347c 5394
97524820
JD		 5395 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5396 if (!max_bandwidth_khz)
5397 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5398 reg_rule);
5399
9360ffd1
DM		 5400 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5401 reg_rule->flags) ||
5402 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5403 freq_range->start_freq_khz) ||
5404 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5405 freq_range->end_freq_khz) ||
5406 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5407 max_bandwidth_khz) ||
9360ffd1
DM		 5408 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5409 power_rule->max_antenna_gain) ||
5410 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5411 power_rule->max_eirp) ||
5412 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5413 reg_rule->dfs_cac_ms))
ad30ca2c 5414 goto nla_put_failure;
f130347c
LR		 5415
5416 nla_nest_end(msg, nl_reg_rule);
5417 }
5418
5419 nla_nest_end(msg, nl_reg_rules);
ad30ca2c
AN		 5420 return 0;
5421
5422nla_put_failure:
5423 return -EMSGSIZE;
5424}
5425
5426static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5427{
5428 const struct ieee80211_regdomain *regdom = NULL;
5429 struct cfg80211_registered_device *rdev;
5430 struct wiphy *wiphy = NULL;
5431 struct sk_buff *msg;
5432 void *hdr;
5433
5434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5435 if (!msg)
5436 return -ENOBUFS;
5437
5438 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5439 NL80211_CMD_GET_REG);
5440 if (!hdr)
5441 goto put_failure;
5442
5443 if (info->attrs[NL80211_ATTR_WIPHY]) {
1bdd716c
AN		 5444 bool self_managed;
5445
ad30ca2c
AN		 5446 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5447 if (IS_ERR(rdev)) {
5448 nlmsg_free(msg);
5449 return PTR_ERR(rdev);
5450 }
5451
5452 wiphy = &rdev->wiphy;
1bdd716c
AN		 5453 self_managed = wiphy->regulatory_flags &
5454 REGULATORY_WIPHY_SELF_MANAGED;
ad30ca2c
AN		 5455 regdom = get_wiphy_regdom(wiphy);
5456
1bdd716c
AN		 5457 /* a self-managed-reg device must have a private regdom */
5458 if (WARN_ON(!regdom && self_managed)) {
5459 nlmsg_free(msg);
5460 return -EINVAL;
5461 }
5462
ad30ca2c
AN		 5463 if (regdom &&
5464 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5465 goto nla_put_failure;
5466 }
5467
5468 if (!wiphy && reg_last_request_cell_base() &&
5469 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5470 NL80211_USER_REG_HINT_CELL_BASE))
5471 goto nla_put_failure;
5472
5473 rcu_read_lock();
5474
5475 if (!regdom)
5476 regdom = rcu_dereference(cfg80211_regdomain);
5477
5478 if (nl80211_put_regdom(regdom, msg))
5479 goto nla_put_failure_rcu;
5480
5481 rcu_read_unlock();
f130347c
LR		 5482
5483 genlmsg_end(msg, hdr);
5fe231e8 5484 return genlmsg_reply(msg, info);
f130347c 5485
458f4f9e
JB		 5486nla_put_failure_rcu:
5487 rcu_read_unlock();
f130347c
LR		 5488nla_put_failure:
5489 genlmsg_cancel(msg, hdr);
efe1cf0c 5490put_failure:
d080e275 5491 nlmsg_free(msg);
5fe231e8 5492 return -EMSGSIZE;
f130347c
LR		 5493}
5494
ad30ca2c
AN		 5495static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5496 u32 seq, int flags, struct wiphy *wiphy,
5497 const struct ieee80211_regdomain *regdom)
5498{
5499 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5500 NL80211_CMD_GET_REG);
5501
5502 if (!hdr)
5503 return -1;
5504
5505 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5506
5507 if (nl80211_put_regdom(regdom, msg))
5508 goto nla_put_failure;
5509
5510 if (!wiphy && reg_last_request_cell_base() &&
5511 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5512 NL80211_USER_REG_HINT_CELL_BASE))
5513 goto nla_put_failure;
5514
5515 if (wiphy &&
5516 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5517 goto nla_put_failure;
5518
1bdd716c
AN		 5519 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5520 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5521 goto nla_put_failure;
5522
ad30ca2c
AN		 5523 return genlmsg_end(msg, hdr);
5524
5525nla_put_failure:
5526 genlmsg_cancel(msg, hdr);
5527 return -EMSGSIZE;
5528}
5529
5530static int nl80211_get_reg_dump(struct sk_buff *skb,
5531 struct netlink_callback *cb)
5532{
5533 const struct ieee80211_regdomain *regdom = NULL;
5534 struct cfg80211_registered_device *rdev;
5535 int err, reg_idx, start = cb->args[2];
5536
5537 rtnl_lock();
5538
5539 if (cfg80211_regdomain && start == 0) {
5540 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5541 NLM_F_MULTI, NULL,
5542 rtnl_dereference(cfg80211_regdomain));
5543 if (err < 0)
5544 goto out_err;
5545 }
5546
5547 /* the global regdom is idx 0 */
5548 reg_idx = 1;
5549 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5550 regdom = get_wiphy_regdom(&rdev->wiphy);
5551 if (!regdom)
5552 continue;
5553
5554 if (++reg_idx <= start)
5555 continue;
5556
5557 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5558 NLM_F_MULTI, &rdev->wiphy, regdom);
5559 if (err < 0) {
5560 reg_idx--;
5561 break;
5562 }
5563 }
5564
5565 cb->args[2] = reg_idx;
5566 err = skb->len;
5567out_err:
5568 rtnl_unlock();
5569 return err;
5570}
5571
b2e1b302
LR		 5572static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5573{
5574 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5575 struct nlattr *nl_reg_rule;
ea372c54
JB		 5576 char *alpha2;
5577 int rem_reg_rules, r;
b2e1b302 5578 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5579 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
ea372c54 5580 struct ieee80211_regdomain *rd;
b2e1b302
LR		 5581
5582 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5583 return -EINVAL;
5584
5585 if (!info->attrs[NL80211_ATTR_REG_RULES])
5586 return -EINVAL;
5587
5588 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5589
8b60b078
LR		 5590 if (info->attrs[NL80211_ATTR_DFS_REGION])
5591 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5592
b2e1b302 5593 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5594 rem_reg_rules) {
b2e1b302
LR		 5595 num_rules++;
5596 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5597 return -EINVAL;
b2e1b302
LR		 5598 }
5599
e438768f
LR		 5600 if (!reg_is_valid_request(alpha2))
5601 return -EINVAL;
5602
b2e1b302 5603 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5604 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5605
5606 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5607 if (!rd)
5608 return -ENOMEM;
b2e1b302
LR		 5609
5610 rd->n_reg_rules = num_rules;
5611 rd->alpha2[0] = alpha2[0];
5612 rd->alpha2[1] = alpha2[1];
5613
8b60b078
LR		 5614 /*
5615 * Disable DFS master mode if the DFS region was
5616 * not supported or known on this kernel.
5617 */
5618 if (reg_supported_dfs_region(dfs_region))
5619 rd->dfs_region = dfs_region;
5620
b2e1b302 5621 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5622 rem_reg_rules) {
ae811e21
JB		 5623 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5624 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5625 reg_rule_policy);
5626 if (r)
5627 goto bad_reg;
b2e1b302
LR		 5628 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5629 if (r)
5630 goto bad_reg;
5631
5632 rule_idx++;
5633
d0e18f83
LR		 5634 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5635 r = -EINVAL;
b2e1b302 5636 goto bad_reg;
d0e18f83 5637 }
b2e1b302
LR		 5638 }
5639
b2e1b302 5640 r = set_regdom(rd);
6913b49a 5641 /* set_regdom took ownership */
1a919318 5642 rd = NULL;
b2e1b302 5643
d2372b31 5644 bad_reg:
b2e1b302 5645 kfree(rd);
d0e18f83 5646 return r;
b2e1b302
LR		 5647}
5648
83f5e2cf
JB		 5649static int validate_scan_freqs(struct nlattr *freqs)
5650{
5651 struct nlattr *attr1, *attr2;
5652 int n_channels = 0, tmp1, tmp2;
5653
5654 nla_for_each_nested(attr1, freqs, tmp1) {
5655 n_channels++;
5656 /*
5657 * Some hardware has a limited channel list for
5658 * scanning, and it is pretty much nonsensical
5659 * to scan for a channel twice, so disallow that
5660 * and don't require drivers to check that the
5661 * channel list they get isn't longer than what
5662 * they can scan, as long as they can scan all
5663 * the channels they registered at once.
5664 */
5665 nla_for_each_nested(attr2, freqs, tmp2)
5666 if (attr1 != attr2 &&
5667 nla_get_u32(attr1) == nla_get_u32(attr2))
5668 return 0;
5669 }
5670
5671 return n_channels;
5672}
5673
ad2b26ab
JB		 5674static int nl80211_parse_random_mac(struct nlattr **attrs,
5675 u8 *mac_addr, u8 *mac_addr_mask)
5676{
5677 int i;
5678
5679 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5680 memset(mac_addr, 0, ETH_ALEN);
5681 memset(mac_addr_mask, 0, ETH_ALEN);
5682 mac_addr[0] = 0x2;
5683 mac_addr_mask[0] = 0x3;
5684
5685 return 0;
5686 }
5687
5688 /* need both or none */
5689 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5690 return -EINVAL;
5691
5692 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5693 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5694
5695 /* don't allow or configure an mcast address */
5696 if (!is_multicast_ether_addr(mac_addr_mask) ||
5697 is_multicast_ether_addr(mac_addr))
5698 return -EINVAL;
5699
5700 /*
5701 * allow users to pass a MAC address that has bits set outside
5702 * of the mask, but don't bother drivers with having to deal
5703 * with such bits
5704 */
5705 for (i = 0; i < ETH_ALEN; i++)
5706 mac_addr[i] &= mac_addr_mask[i];
5707
5708 return 0;
5709}
5710
2a519311
JB		 5711static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5712{
4c476991 5713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5714 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5715 struct cfg80211_scan_request *request;
2a519311
JB		 5716 struct nlattr *attr;
5717 struct wiphy *wiphy;
83f5e2cf 5718 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5719 size_t ie_len;
2a519311 5720
f4a11bb0
JB		 5721 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5722 return -EINVAL;
5723
79c97e97 5724 wiphy = &rdev->wiphy;
2a519311 5725
4c476991
JB		 5726 if (!rdev->ops->scan)
5727 return -EOPNOTSUPP;
2a519311 5728
f9d15d16 5729 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5730 err = -EBUSY;
5731 goto unlock;
5732 }
2a519311
JB		 5733
5734 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5735 n_channels = validate_scan_freqs(
5736 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5737 if (!n_channels) {
5738 err = -EINVAL;
5739 goto unlock;
5740 }
2a519311 5741 } else {
bdfbec2d 5742 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5743 }
5744
5745 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5746 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5747 n_ssids++;
5748
f9f47529
JB		 5749 if (n_ssids > wiphy->max_scan_ssids) {
5750 err = -EINVAL;
5751 goto unlock;
5752 }
2a519311 5753
70692ad2
JM		 5754 if (info->attrs[NL80211_ATTR_IE])
5755 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5756 else
5757 ie_len = 0;
5758
f9f47529
JB		 5759 if (ie_len > wiphy->max_scan_ie_len) {
5760 err = -EINVAL;
5761 goto unlock;
5762 }
18a83659 5763
2a519311 5764 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5765 + sizeof(*request->ssids) * n_ssids
5766 + sizeof(*request->channels) * n_channels
70692ad2 5767 + ie_len, GFP_KERNEL);
f9f47529
JB		 5768 if (!request) {
5769 err = -ENOMEM;
5770 goto unlock;
5771 }
2a519311 5772
2a519311 5773 if (n_ssids)
5ba63533 5774 request->ssids = (void *)&request->channels[n_channels];
2a519311 5775 request->n_ssids = n_ssids;
70692ad2
JM		 5776 if (ie_len) {
5777 if (request->ssids)
5778 request->ie = (void *)(request->ssids + n_ssids);
5779 else
5780 request->ie = (void *)(request->channels + n_channels);
5781 }
2a519311 5782
584991dc 5783 i = 0;
2a519311
JB		 5784 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5785 /* user specified, bail out if channel not found */
2a519311 5786 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5787 struct ieee80211_channel *chan;
5788
5789 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5790
5791 if (!chan) {
2a519311
JB		 5792 err = -EINVAL;
5793 goto out_free;
5794 }
584991dc
JB		 5795
5796 /* ignore disabled channels */
5797 if (chan->flags & IEEE80211_CHAN_DISABLED)
5798 continue;
5799
5800 request->channels[i] = chan;
2a519311
JB		 5801 i++;
5802 }
5803 } else {
34850ab2
JB		 5804 enum ieee80211_band band;
5805
2a519311 5806 /* all channels */
2a519311
JB		 5807 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5808 int j;
5809 if (!wiphy->bands[band])
5810 continue;
5811 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5812 struct ieee80211_channel *chan;
5813
5814 chan = &wiphy->bands[band]->channels[j];
5815
5816 if (chan->flags & IEEE80211_CHAN_DISABLED)
5817 continue;
5818
5819 request->channels[i] = chan;
2a519311
JB		 5820 i++;
5821 }
5822 }
5823 }
5824
584991dc
JB		 5825 if (!i) {
5826 err = -EINVAL;
5827 goto out_free;
5828 }
5829
5830 request->n_channels = i;
5831
2a519311
JB		 5832 i = 0;
5833 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5834 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5835 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5836 err = -EINVAL;
5837 goto out_free;
5838 }
57a27e1d 5839 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5840 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5841 i++;
5842 }
5843 }
5844
70692ad2
JM		 5845 if (info->attrs[NL80211_ATTR_IE]) {
5846 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5847 memcpy((void *)request->ie,
5848 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5849 request->ie_len);
5850 }
5851
34850ab2 5852 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5853 if (wiphy->bands[i])
5854 request->rates[i] =
5855 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5856
5857 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5858 nla_for_each_nested(attr,
5859 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5860 tmp) {
5861 enum ieee80211_band band = nla_type(attr);
5862
84404623 5863 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5864 err = -EINVAL;
5865 goto out_free;
5866 }
1b09cd82
FF		 5867
5868 if (!wiphy->bands[band])
5869 continue;
5870
34850ab2
JB		 5871 err = ieee80211_get_ratemask(wiphy->bands[band],
5872 nla_data(attr),
5873 nla_len(attr),
5874 &request->rates[band]);
5875 if (err)
5876 goto out_free;
5877 }
5878 }
5879
46856bbf 5880 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5881 request->flags = nla_get_u32(
5882 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5883 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5884 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5885 err = -EOPNOTSUPP;
5886 goto out_free;
5887 }
ad2b26ab
JB		 5888
5889 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5890 if (!(wiphy->features &
5891 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5892 err = -EOPNOTSUPP;
5893 goto out_free;
5894 }
5895
5896 if (wdev->current_bss) {
5897 err = -EOPNOTSUPP;
5898 goto out_free;
5899 }
5900
5901 err = nl80211_parse_random_mac(info->attrs,
5902 request->mac_addr,
5903 request->mac_addr_mask);
5904 if (err)
5905 goto out_free;
5906 }
46856bbf 5907 }
ed473771 5908
e9f935e3
RM		 5909 request->no_cck =
5910 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5911
fd014284 5912 request->wdev = wdev;
79c97e97 5913 request->wiphy = &rdev->wiphy;
15d6030b 5914 request->scan_start = jiffies;
2a519311 5915
79c97e97 5916 rdev->scan_req = request;
e35e4d28 5917 err = rdev_scan(rdev, request);
2a519311 5918
463d0183 5919 if (!err) {
fd014284
JB		 5920 nl80211_send_scan_start(rdev, wdev);
5921 if (wdev->netdev)
5922 dev_hold(wdev->netdev);
4c476991 5923 } else {
2a519311 5924 out_free:
79c97e97 5925 rdev->scan_req = NULL;
2a519311
JB		 5926 kfree(request);
5927 }
3b85875a 5928
f9f47529 5929 unlock:
2a519311
JB		 5930 return err;
5931}
5932
256da02d 5933static struct cfg80211_sched_scan_request *
ad2b26ab 5934nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
256da02d 5935 struct nlattr **attrs)
807f8a8c
LC		 5936{
5937 struct cfg80211_sched_scan_request *request;
807f8a8c 5938 struct nlattr *attr;
a1f1c21c 5939 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5940 u32 interval;
807f8a8c
LC		 5941 enum ieee80211_band band;
5942 size_t ie_len;
a1f1c21c 5943 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5944 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c 5945
256da02d
LC		 5946 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5947 return ERR_PTR(-EINVAL);
807f8a8c 5948
256da02d
LC		 5949 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5950 return ERR_PTR(-EINVAL);
bbe6ad6d 5951
256da02d 5952 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
bbe6ad6d 5953 if (interval == 0)
256da02d 5954 return ERR_PTR(-EINVAL);
807f8a8c 5955
256da02d 5956 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c 5957 n_channels = validate_scan_freqs(
256da02d 5958 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
807f8a8c 5959 if (!n_channels)
256da02d 5960 return ERR_PTR(-EINVAL);
807f8a8c 5961 } else {
bdfbec2d 5962 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5963 }
5964
256da02d
LC		 5965 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5966 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c
LC		 5967 tmp)
5968 n_ssids++;
5969
93b6aa69 5970 if (n_ssids > wiphy->max_sched_scan_ssids)
256da02d 5971 return ERR_PTR(-EINVAL);
807f8a8c 5972
ea73cbce
JB		 5973 /*
5974 * First, count the number of 'real' matchsets. Due to an issue with
5975 * the old implementation, matchsets containing only the RSSI attribute
5976 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5977 * RSSI for all matchsets, rather than their own matchset for reporting
5978 * all APs with a strong RSSI. This is needed to be compatible with
5979 * older userspace that treated a matchset with only the RSSI as the
5980 * global RSSI for all other matchsets - if there are other matchsets.
5981 */
256da02d 5982 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 5983 nla_for_each_nested(attr,
256da02d 5984 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5985 tmp) {
5986 struct nlattr *rssi;
5987
5988 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5989 nla_data(attr), nla_len(attr),
5990 nl80211_match_policy);
5991 if (err)
256da02d 5992 return ERR_PTR(err);
ea73cbce
JB		 5993 /* add other standalone attributes here */
5994 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5995 n_match_sets++;
5996 continue;
5997 }
5998 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5999 if (rssi)
6000 default_match_rssi = nla_get_s32(rssi);
6001 }
6002 }
6003
6004 /* However, if there's no other matchset, add the RSSI one */
6005 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6006 n_match_sets = 1;
a1f1c21c
LC		 6007
6008 if (n_match_sets > wiphy->max_match_sets)
256da02d 6009 return ERR_PTR(-EINVAL);
a1f1c21c 6010
256da02d
LC		 6011 if (attrs[NL80211_ATTR_IE])
6012 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
807f8a8c
LC		 6013 else
6014 ie_len = 0;
6015
5a865bad 6016 if (ie_len > wiphy->max_sched_scan_ie_len)
256da02d 6017 return ERR_PTR(-EINVAL);
c10841ca 6018
807f8a8c 6019 request = kzalloc(sizeof(*request)
a2cd43c5 6020 + sizeof(*request->ssids) * n_ssids
a1f1c21c 6021 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 6022 + sizeof(*request->channels) * n_channels
807f8a8c 6023 + ie_len, GFP_KERNEL);
256da02d
LC		 6024 if (!request)
6025 return ERR_PTR(-ENOMEM);
807f8a8c
LC		 6026
6027 if (n_ssids)
6028 request->ssids = (void *)&request->channels[n_channels];
6029 request->n_ssids = n_ssids;
6030 if (ie_len) {
6031 if (request->ssids)
6032 request->ie = (void *)(request->ssids + n_ssids);
6033 else
6034 request->ie = (void *)(request->channels + n_channels);
6035 }
6036
a1f1c21c
LC		 6037 if (n_match_sets) {
6038 if (request->ie)
6039 request->match_sets = (void *)(request->ie + ie_len);
6040 else if (request->ssids)
6041 request->match_sets =
6042 (void *)(request->ssids + n_ssids);
6043 else
6044 request->match_sets =
6045 (void *)(request->channels + n_channels);
6046 }
6047 request->n_match_sets = n_match_sets;
6048
807f8a8c 6049 i = 0;
256da02d 6050 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
807f8a8c
LC		 6051 /* user specified, bail out if channel not found */
6052 nla_for_each_nested(attr,
256da02d 6053 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
807f8a8c
LC		 6054 tmp) {
6055 struct ieee80211_channel *chan;
6056
6057 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6058
6059 if (!chan) {
6060 err = -EINVAL;
6061 goto out_free;
6062 }
6063
6064 /* ignore disabled channels */
6065 if (chan->flags & IEEE80211_CHAN_DISABLED)
6066 continue;
6067
6068 request->channels[i] = chan;
6069 i++;
6070 }
6071 } else {
6072 /* all channels */
6073 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6074 int j;
6075 if (!wiphy->bands[band])
6076 continue;
6077 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6078 struct ieee80211_channel *chan;
6079
6080 chan = &wiphy->bands[band]->channels[j];
6081
6082 if (chan->flags & IEEE80211_CHAN_DISABLED)
6083 continue;
6084
6085 request->channels[i] = chan;
6086 i++;
6087 }
6088 }
6089 }
6090
6091 if (!i) {
6092 err = -EINVAL;
6093 goto out_free;
6094 }
6095
6096 request->n_channels = i;
6097
6098 i = 0;
256da02d
LC		 6099 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
6100 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
807f8a8c 6101 tmp) {
57a27e1d 6102 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 6103 err = -EINVAL;
6104 goto out_free;
6105 }
57a27e1d 6106 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 6107 memcpy(request->ssids[i].ssid, nla_data(attr),
6108 nla_len(attr));
807f8a8c
LC		 6109 i++;
6110 }
6111 }
6112
a1f1c21c 6113 i = 0;
256da02d 6114 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c 6115 nla_for_each_nested(attr,
256da02d 6116 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
a1f1c21c 6117 tmp) {
88e920b4 6118 struct nlattr *ssid, *rssi;
a1f1c21c 6119
ae811e21
JB		 6120 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6121 nla_data(attr), nla_len(attr),
6122 nl80211_match_policy);
6123 if (err)
6124 goto out_free;
4a4ab0d7 6125 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 6126 if (ssid) {
ea73cbce
JB		 6127 if (WARN_ON(i >= n_match_sets)) {
6128 /* this indicates a programming error,
6129 * the loop above should have verified
6130 * things properly
6131 */
6132 err = -EINVAL;
6133 goto out_free;
6134 }
6135
a1f1c21c
LC		 6136 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6137 err = -EINVAL;
6138 goto out_free;
6139 }
6140 memcpy(request->match_sets[i].ssid.ssid,
6141 nla_data(ssid), nla_len(ssid));
6142 request->match_sets[i].ssid.ssid_len =
6143 nla_len(ssid);
ea73cbce
JB		 6144 /* special attribute - old implemenation w/a */
6145 request->match_sets[i].rssi_thold =
6146 default_match_rssi;
6147 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6148 if (rssi)
6149 request->match_sets[i].rssi_thold =
6150 nla_get_s32(rssi);
a1f1c21c
LC		 6151 }
6152 i++;
6153 }
ea73cbce
JB		 6154
6155 /* there was no other matchset, so the RSSI one is alone */
f89f46cf 6156 if (i == 0 && n_match_sets)
ea73cbce
JB		 6157 request->match_sets[0].rssi_thold = default_match_rssi;
6158
6159 request->min_rssi_thold = INT_MAX;
6160 for (i = 0; i < n_match_sets; i++)
6161 request->min_rssi_thold =
6162 min(request->match_sets[i].rssi_thold,
6163 request->min_rssi_thold);
6164 } else {
6165 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 6166 }
6167
9900e484
JB		 6168 if (ie_len) {
6169 request->ie_len = ie_len;
807f8a8c 6170 memcpy((void *)request->ie,
256da02d 6171 nla_data(attrs[NL80211_ATTR_IE]),
807f8a8c
LC		 6172 request->ie_len);
6173 }
6174
256da02d 6175 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771 6176 request->flags = nla_get_u32(
256da02d 6177 attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 6178 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6179 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 6180 err = -EOPNOTSUPP;
6181 goto out_free;
6182 }
ad2b26ab
JB		 6183
6184 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6185 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6186
6187 if (!wdev) /* must be net-detect */
6188 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6189
6190 if (!(wiphy->features & flg)) {
6191 err = -EOPNOTSUPP;
6192 goto out_free;
6193 }
6194
6195 if (wdev && wdev->current_bss) {
6196 err = -EOPNOTSUPP;
6197 goto out_free;
6198 }
6199
6200 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6201 request->mac_addr_mask);
6202 if (err)
6203 goto out_free;
6204 }
46856bbf 6205 }
ed473771 6206
bbe6ad6d 6207 request->interval = interval;
15d6030b 6208 request->scan_start = jiffies;
807f8a8c 6209
256da02d 6210 return request;
807f8a8c
LC		 6211
6212out_free:
6213 kfree(request);
256da02d
LC		 6214 return ERR_PTR(err);
6215}
6216
6217static int nl80211_start_sched_scan(struct sk_buff *skb,
6218 struct genl_info *info)
6219{
6220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6221 struct net_device *dev = info->user_ptr[1];
ad2b26ab 6222 struct wireless_dev *wdev = dev->ieee80211_ptr;
31a60ed1 6223 struct cfg80211_sched_scan_request *sched_scan_req;
256da02d
LC		 6224 int err;
6225
6226 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6227 !rdev->ops->sched_scan_start)
6228 return -EOPNOTSUPP;
6229
6230 if (rdev->sched_scan_req)
6231 return -EINPROGRESS;
6232
31a60ed1
JR		 6233 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6234 info->attrs);
6235
6236 err = PTR_ERR_OR_ZERO(sched_scan_req);
256da02d
LC		 6237 if (err)
6238 goto out_err;
6239
31a60ed1 6240 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
256da02d
LC		 6241 if (err)
6242 goto out_free;
6243
31a60ed1
JR		 6244 sched_scan_req->dev = dev;
6245 sched_scan_req->wiphy = &rdev->wiphy;
6246
93a1e86c
JR		 6247 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6248 sched_scan_req->owner_nlportid = info->snd_portid;
6249
31a60ed1 6250 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
256da02d
LC		 6251
6252 nl80211_send_sched_scan(rdev, dev,
6253 NL80211_CMD_START_SCHED_SCAN);
6254 return 0;
6255
6256out_free:
31a60ed1 6257 kfree(sched_scan_req);
256da02d 6258out_err:
807f8a8c
LC		 6259 return err;
6260}
6261
6262static int nl80211_stop_sched_scan(struct sk_buff *skb,
6263 struct genl_info *info)
6264{
6265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6266
6267 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6268 !rdev->ops->sched_scan_stop)
6269 return -EOPNOTSUPP;
6270
5fe231e8 6271 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 6272}
6273
04f39047
SW		 6274static int nl80211_start_radar_detection(struct sk_buff *skb,
6275 struct genl_info *info)
6276{
6277 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6278 struct net_device *dev = info->user_ptr[1];
6279 struct wireless_dev *wdev = dev->ieee80211_ptr;
6280 struct cfg80211_chan_def chandef;
55f7435c 6281 enum nl80211_dfs_regions dfs_region;
31559f35 6282 unsigned int cac_time_ms;
04f39047
SW		 6283 int err;
6284
55f7435c
LR		 6285 dfs_region = reg_get_dfs_region(wdev->wiphy);
6286 if (dfs_region == NL80211_DFS_UNSET)
6287 return -EINVAL;
6288
04f39047
SW		 6289 err = nl80211_parse_chandef(rdev, info, &chandef);
6290 if (err)
6291 return err;
6292
ff311bc1
SW		 6293 if (netif_carrier_ok(dev))
6294 return -EBUSY;
6295
04f39047
SW		 6296 if (wdev->cac_started)
6297 return -EBUSY;
6298
2beb6dab 6299 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 6300 wdev->iftype);
04f39047
SW		 6301 if (err < 0)
6302 return err;
6303
6304 if (err == 0)
6305 return -EINVAL;
6306
fe7c3a1f 6307 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 6308 return -EINVAL;
6309
6310 if (!rdev->ops->start_radar_detection)
6311 return -EOPNOTSUPP;
6312
31559f35
JD		 6313 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6314 if (WARN_ON(!cac_time_ms))
6315 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6316
6317 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6318 cac_time_ms);
04f39047 6319 if (!err) {
9e0e2961 6320 wdev->chandef = chandef;
04f39047
SW		 6321 wdev->cac_started = true;
6322 wdev->cac_start_time = jiffies;
31559f35 6323 wdev->cac_time_ms = cac_time_ms;
04f39047 6324 }
04f39047
SW		 6325 return err;
6326}
6327
16ef1fe2
SW		 6328static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6329{
6330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6331 struct net_device *dev = info->user_ptr[1];
6332 struct wireless_dev *wdev = dev->ieee80211_ptr;
6333 struct cfg80211_csa_settings params;
6334 /* csa_attrs is defined static to avoid waste of stack size - this
6335 * function is called under RTNL lock, so this should not be a problem.
6336 */
6337 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
16ef1fe2 6338 int err;
ee4bc9e7 6339 bool need_new_beacon = false;
9a774c78 6340 int len, i;
252e07ca 6341 u32 cs_count;
16ef1fe2
SW		 6342
6343 if (!rdev->ops->channel_switch ||
6344 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6345 return -EOPNOTSUPP;
6346
ee4bc9e7
SW		 6347 switch (dev->ieee80211_ptr->iftype) {
6348 case NL80211_IFTYPE_AP:
6349 case NL80211_IFTYPE_P2P_GO:
6350 need_new_beacon = true;
6351
6352 /* useless if AP is not running */
6353 if (!wdev->beacon_interval)
1ff79dfa 6354 return -ENOTCONN;
ee4bc9e7
SW		 6355 break;
6356 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6357 if (!wdev->ssid_len)
6358 return -ENOTCONN;
6359 break;
c6da674a 6360 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6361 if (!wdev->mesh_id_len)
6362 return -ENOTCONN;
ee4bc9e7
SW		 6363 break;
6364 default:
16ef1fe2 6365 return -EOPNOTSUPP;
ee4bc9e7 6366 }
16ef1fe2
SW		 6367
6368 memset(&params, 0, sizeof(params));
6369
6370 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6371 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6372 return -EINVAL;
6373
6374 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6375 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6376 return -EINVAL;
6377
252e07ca
LC		 6378 /* Even though the attribute is u32, the specification says
6379 * u8, so let's make sure we don't overflow.
6380 */
6381 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6382 if (cs_count > 255)
6383 return -EINVAL;
6384
6385 params.count = cs_count;
16ef1fe2 6386
ee4bc9e7
SW		 6387 if (!need_new_beacon)
6388 goto skip_beacons;
6389
16ef1fe2
SW		 6390 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6391 if (err)
6392 return err;
6393
6394 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6395 info->attrs[NL80211_ATTR_CSA_IES],
6396 nl80211_policy);
6397 if (err)
6398 return err;
6399
6400 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6401 if (err)
6402 return err;
6403
6404 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6405 return -EINVAL;
6406
9a774c78
AO		 6407 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6408 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6409 return -EINVAL;
6410
9a774c78
AO		 6411 params.n_counter_offsets_beacon = len / sizeof(u16);
6412 if (rdev->wiphy.max_num_csa_counters &&
6413 (params.n_counter_offsets_beacon >
6414 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6415 return -EINVAL;
6416
9a774c78
AO		 6417 params.counter_offsets_beacon =
6418 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6419
6420 /* sanity checks - counters should fit and be the same */
6421 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6422 u16 offset = params.counter_offsets_beacon[i];
6423
6424 if (offset >= params.beacon_csa.tail_len)
6425 return -EINVAL;
6426
6427 if (params.beacon_csa.tail[offset] != params.count)
6428 return -EINVAL;
6429 }
6430
16ef1fe2 6431 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6432 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6433 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6434 return -EINVAL;
6435
9a774c78
AO		 6436 params.n_counter_offsets_presp = len / sizeof(u16);
6437 if (rdev->wiphy.max_num_csa_counters &&
6438 (params.n_counter_offsets_beacon >
6439 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6440 return -EINVAL;
9a774c78
AO		 6441
6442 params.counter_offsets_presp =
6443 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6444
6445 /* sanity checks - counters should fit and be the same */
6446 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6447 u16 offset = params.counter_offsets_presp[i];
6448
6449 if (offset >= params.beacon_csa.probe_resp_len)
6450 return -EINVAL;
6451
6452 if (params.beacon_csa.probe_resp[offset] !=
6453 params.count)
6454 return -EINVAL;
6455 }
16ef1fe2
SW		 6456 }
6457
ee4bc9e7 6458skip_beacons:
16ef1fe2
SW		 6459 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6460 if (err)
6461 return err;
6462
174e0cd2
IP		 6463 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6464 wdev->iftype))
16ef1fe2
SW		 6465 return -EINVAL;
6466
2beb6dab
LC		 6467 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6468 &params.chandef,
6469 wdev->iftype);
6470 if (err < 0)
6471 return err;
6472
dcc6c2f5 6473 if (err > 0)
2beb6dab 6474 params.radar_required = true;
16ef1fe2 6475
16ef1fe2
SW		 6476 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6477 params.block_tx = true;
6478
c56589ed
SW		 6479 wdev_lock(wdev);
6480 err = rdev_channel_switch(rdev, dev, &params);
6481 wdev_unlock(wdev);
6482
6483 return err;
16ef1fe2
SW		 6484}
6485
9720bb3a
JB		 6486static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6487 u32 seq, int flags,
2a519311 6488 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6489 struct wireless_dev *wdev,
6490 struct cfg80211_internal_bss *intbss)
2a519311 6491{
48ab905d 6492 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6493 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6494 void *hdr;
6495 struct nlattr *bss;
48ab905d
JB		 6496
6497 ASSERT_WDEV_LOCK(wdev);
2a519311 6498
15e47304 6499 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6500 NL80211_CMD_NEW_SCAN_RESULTS);
6501 if (!hdr)
6502 return -1;
6503
9720bb3a
JB		 6504 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6505
97990a06
JB		 6506 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6507 goto nla_put_failure;
6508 if (wdev->netdev &&
9360ffd1
DM		 6509 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6510 goto nla_put_failure;
97990a06
JB		 6511 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6512 goto nla_put_failure;
2a519311
JB		 6513
6514 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6515 if (!bss)
6516 goto nla_put_failure;
9360ffd1 6517 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6518 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6519 goto nla_put_failure;
9caf0364
JB		 6520
6521 rcu_read_lock();
0e227084
JB		 6522 /* indicate whether we have probe response data or not */
6523 if (rcu_access_pointer(res->proberesp_ies) &&
6524 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6525 goto fail_unlock_rcu;
6526
6527 /* this pointer prefers to be pointed to probe response data
6528 * but is always valid
6529 */
9caf0364 6530 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6531 if (ies) {
6532 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6533 goto fail_unlock_rcu;
8cef2c9d
JB		 6534 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6535 ies->len, ies->data))
6536 goto fail_unlock_rcu;
9caf0364 6537 }
0e227084
JB		 6538
6539 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6540 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6541 if (ies && ies->from_beacon) {
6542 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6543 goto fail_unlock_rcu;
6544 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6545 ies->len, ies->data))
6546 goto fail_unlock_rcu;
9caf0364
JB		 6547 }
6548 rcu_read_unlock();
6549
9360ffd1
DM		 6550 if (res->beacon_interval &&
6551 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6552 goto nla_put_failure;
6553 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6554 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6555 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6556 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6557 jiffies_to_msecs(jiffies - intbss->ts)))
6558 goto nla_put_failure;
2a519311 6559
77965c97 6560 switch (rdev->wiphy.signal_type) {
2a519311 6561 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6562 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6563 goto nla_put_failure;
2a519311
JB		 6564 break;
6565 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6566 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6567 goto nla_put_failure;
2a519311
JB		 6568 break;
6569 default:
6570 break;
6571 }
6572
48ab905d 6573 switch (wdev->iftype) {
074ac8df 6574 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6575 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6576 if (intbss == wdev->current_bss &&
6577 nla_put_u32(msg, NL80211_BSS_STATUS,
6578 NL80211_BSS_STATUS_ASSOCIATED))
6579 goto nla_put_failure;
48ab905d
JB		 6580 break;
6581 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6582 if (intbss == wdev->current_bss &&
6583 nla_put_u32(msg, NL80211_BSS_STATUS,
6584 NL80211_BSS_STATUS_IBSS_JOINED))
6585 goto nla_put_failure;
48ab905d
JB		 6586 break;
6587 default:
6588 break;
6589 }
6590
2a519311
JB		 6591 nla_nest_end(msg, bss);
6592
6593 return genlmsg_end(msg, hdr);
6594
8cef2c9d
JB		 6595 fail_unlock_rcu:
6596 rcu_read_unlock();
2a519311
JB		 6597 nla_put_failure:
6598 genlmsg_cancel(msg, hdr);
6599 return -EMSGSIZE;
6600}
6601
97990a06 6602static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6603{
48ab905d 6604 struct cfg80211_registered_device *rdev;
2a519311 6605 struct cfg80211_internal_bss *scan;
48ab905d 6606 struct wireless_dev *wdev;
97990a06 6607 int start = cb->args[2], idx = 0;
2a519311
JB		 6608 int err;
6609
97990a06 6610 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6611 if (err)
6612 return err;
2a519311 6613
48ab905d
JB		 6614 wdev_lock(wdev);
6615 spin_lock_bh(&rdev->bss_lock);
6616 cfg80211_bss_expire(rdev);
6617
9720bb3a
JB		 6618 cb->seq = rdev->bss_generation;
6619
48ab905d 6620 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6621 if (++idx <= start)
6622 continue;
9720bb3a 6623 if (nl80211_send_bss(skb, cb,
2a519311 6624 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6625 rdev, wdev, scan) < 0) {
2a519311 6626 idx--;
67748893 6627 break;
2a519311
JB		 6628 }
6629 }
6630
48ab905d
JB		 6631 spin_unlock_bh(&rdev->bss_lock);
6632 wdev_unlock(wdev);
2a519311 6633
97990a06
JB		 6634 cb->args[2] = idx;
6635 nl80211_finish_wdev_dump(rdev);
2a519311 6636
67748893 6637 return skb->len;
2a519311
JB		 6638}
6639
15e47304 6640static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
11f78ac3
JB		 6641 int flags, struct net_device *dev,
6642 bool allow_radio_stats,
6643 struct survey_info *survey)
61fa713c
HS		 6644{
6645 void *hdr;
6646 struct nlattr *infoattr;
6647
11f78ac3
JB		 6648 /* skip radio stats if userspace didn't request them */
6649 if (!survey->channel && !allow_radio_stats)
6650 return 0;
6651
15e47304 6652 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6653 NL80211_CMD_NEW_SURVEY_RESULTS);
6654 if (!hdr)
6655 return -ENOMEM;
6656
9360ffd1
DM		 6657 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6658 goto nla_put_failure;
61fa713c
HS		 6659
6660 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6661 if (!infoattr)
6662 goto nla_put_failure;
6663
11f78ac3
JB		 6664 if (survey->channel &&
6665 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
9360ffd1
DM		 6666 survey->channel->center_freq))
6667 goto nla_put_failure;
6668
6669 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6670 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6671 goto nla_put_failure;
6672 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6673 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6674 goto nla_put_failure;
4ed20beb
JB		 6675 if ((survey->filled & SURVEY_INFO_TIME) &&
6676 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6677 survey->time))
9360ffd1 6678 goto nla_put_failure;
4ed20beb
JB		 6679 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6680 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6681 survey->time_busy))
9360ffd1 6682 goto nla_put_failure;
4ed20beb
JB		 6683 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6684 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6685 survey->time_ext_busy))
9360ffd1 6686 goto nla_put_failure;
4ed20beb
JB		 6687 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6688 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6689 survey->time_rx))
9360ffd1 6690 goto nla_put_failure;
4ed20beb
JB		 6691 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6692 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6693 survey->time_tx))
9360ffd1 6694 goto nla_put_failure;
052536ab
JB		 6695 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6696 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6697 survey->time_scan))
6698 goto nla_put_failure;
61fa713c
HS		 6699
6700 nla_nest_end(msg, infoattr);
6701
6702 return genlmsg_end(msg, hdr);
6703
6704 nla_put_failure:
6705 genlmsg_cancel(msg, hdr);
6706 return -EMSGSIZE;
6707}
6708
11f78ac3 6709static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
61fa713c
HS		 6710{
6711 struct survey_info survey;
1b8ec87a 6712 struct cfg80211_registered_device *rdev;
97990a06
JB		 6713 struct wireless_dev *wdev;
6714 int survey_idx = cb->args[2];
61fa713c 6715 int res;
11f78ac3 6716 bool radio_stats;
61fa713c 6717
1b8ec87a 6718 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6719 if (res)
6720 return res;
61fa713c 6721
11f78ac3
JB		 6722 /* prepare_wdev_dump parsed the attributes */
6723 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6724
97990a06
JB		 6725 if (!wdev->netdev) {
6726 res = -EINVAL;
6727 goto out_err;
6728 }
6729
1b8ec87a 6730 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6731 res = -EOPNOTSUPP;
6732 goto out_err;
6733 }
6734
6735 while (1) {
1b8ec87a 6736 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6737 if (res == -ENOENT)
6738 break;
6739 if (res)
6740 goto out_err;
6741
11f78ac3
JB		 6742 /* don't send disabled channels, but do send non-channel data */
6743 if (survey.channel &&
6744 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
180cdc79
LR		 6745 survey_idx++;
6746 continue;
6747 }
6748
61fa713c 6749 if (nl80211_send_survey(skb,
15e47304 6750 NETLINK_CB(cb->skb).portid,
61fa713c 6751 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11f78ac3 6752 wdev->netdev, radio_stats, &survey) < 0)
61fa713c
HS		 6753 goto out;
6754 survey_idx++;
6755 }
6756
6757 out:
97990a06 6758 cb->args[2] = survey_idx;
61fa713c
HS		 6759 res = skb->len;
6760 out_err:
1b8ec87a 6761 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6762 return res;
6763}
6764
b23aa676
SO		 6765static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6766{
6767 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6768 NL80211_WPA_VERSION_2));
6769}
6770
636a5d36
JM		 6771static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6772{
4c476991
JB		 6773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6774 struct net_device *dev = info->user_ptr[1];
19957bb3 6775 struct ieee80211_channel *chan;
e39e5b5e
JM		 6776 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6777 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6778 enum nl80211_auth_type auth_type;
fffd0934 6779 struct key_parse key;
d5cdfacb 6780 bool local_state_change;
636a5d36 6781
f4a11bb0
JB		 6782 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6783 return -EINVAL;
6784
6785 if (!info->attrs[NL80211_ATTR_MAC])
6786 return -EINVAL;
6787
1778092e
JM		 6788 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6789 return -EINVAL;
6790
19957bb3
JB		 6791 if (!info->attrs[NL80211_ATTR_SSID])
6792 return -EINVAL;
6793
6794 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6795 return -EINVAL;
6796
fffd0934
JB		 6797 err = nl80211_parse_key(info, &key);
6798 if (err)
6799 return err;
6800
6801 if (key.idx >= 0) {
e31b8213
JB		 6802 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6803 return -EINVAL;
fffd0934
JB		 6804 if (!key.p.key || !key.p.key_len)
6805 return -EINVAL;
6806 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6807 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6808 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6809 key.p.key_len != WLAN_KEY_LEN_WEP104))
6810 return -EINVAL;
6811 if (key.idx > 4)
6812 return -EINVAL;
6813 } else {
6814 key.p.key_len = 0;
6815 key.p.key = NULL;
6816 }
6817
afea0b7a
JB		 6818 if (key.idx >= 0) {
6819 int i;
6820 bool ok = false;
6821 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6822 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6823 ok = true;
6824 break;
6825 }
6826 }
4c476991
JB		 6827 if (!ok)
6828 return -EINVAL;
afea0b7a
JB		 6829 }
6830
4c476991
JB		 6831 if (!rdev->ops->auth)
6832 return -EOPNOTSUPP;
636a5d36 6833
074ac8df 6834 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6835 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6836 return -EOPNOTSUPP;
eec60b03 6837
19957bb3 6838 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6839 chan = nl80211_get_valid_chan(&rdev->wiphy,
6840 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6841 if (!chan)
4c476991 6842 return -EINVAL;
636a5d36 6843
19957bb3
JB		 6844 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6845 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6846
6847 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6848 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6849 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6850 }
6851
19957bb3 6852 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6853 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6854 return -EINVAL;
636a5d36 6855
e39e5b5e
JM		 6856 if (auth_type == NL80211_AUTHTYPE_SAE &&
6857 !info->attrs[NL80211_ATTR_SAE_DATA])
6858 return -EINVAL;
6859
6860 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6861 if (auth_type != NL80211_AUTHTYPE_SAE)
6862 return -EINVAL;
6863 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6864 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6865 /* need to include at least Auth Transaction and Status Code */
6866 if (sae_data_len < 4)
6867 return -EINVAL;
6868 }
6869
d5cdfacb
JM		 6870 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6871
95de817b
JB		 6872 /*
6873 * Since we no longer track auth state, ignore
6874 * requests to only change local state.
6875 */
6876 if (local_state_change)
6877 return 0;
6878
91bf9b26
JB		 6879 wdev_lock(dev->ieee80211_ptr);
6880 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6881 ssid, ssid_len, ie, ie_len,
6882 key.p.key, key.p.key_len, key.idx,
6883 sae_data, sae_data_len);
6884 wdev_unlock(dev->ieee80211_ptr);
6885 return err;
636a5d36
JM		 6886}
6887
c0692b8f
JB		 6888static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6889 struct genl_info *info,
3dc27d25
JB		 6890 struct cfg80211_crypto_settings *settings,
6891 int cipher_limit)
b23aa676 6892{
c0b2bbd8
JB		 6893 memset(settings, 0, sizeof(*settings));
6894
b23aa676
SO		 6895 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6896
c0692b8f
JB		 6897 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6898 u16 proto;
6899 proto = nla_get_u16(
6900 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6901 settings->control_port_ethertype = cpu_to_be16(proto);
6902 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6903 proto != ETH_P_PAE)
6904 return -EINVAL;
6905 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6906 settings->control_port_no_encrypt = true;
6907 } else
6908 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6909
b23aa676
SO		 6910 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6911 void *data;
6912 int len, i;
6913
6914 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6915 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6916 settings->n_ciphers_pairwise = len / sizeof(u32);
6917
6918 if (len % sizeof(u32))
6919 return -EINVAL;
6920
3dc27d25 6921 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6922 return -EINVAL;
6923
6924 memcpy(settings->ciphers_pairwise, data, len);
6925
6926 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6927 if (!cfg80211_supported_cipher_suite(
6928 &rdev->wiphy,
b23aa676
SO		 6929 settings->ciphers_pairwise[i]))
6930 return -EINVAL;
6931 }
6932
6933 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6934 settings->cipher_group =
6935 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6936 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6937 settings->cipher_group))
b23aa676
SO		 6938 return -EINVAL;
6939 }
6940
6941 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6942 settings->wpa_versions =
6943 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6944 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6945 return -EINVAL;
6946 }
6947
6948 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6949 void *data;
6d30240e 6950 int len;
b23aa676
SO		 6951
6952 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6953 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6954 settings->n_akm_suites = len / sizeof(u32);
6955
6956 if (len % sizeof(u32))
6957 return -EINVAL;
6958
1b9ca027
JM		 6959 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6960 return -EINVAL;
6961
b23aa676 6962 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6963 }
6964
6965 return 0;
6966}
6967
636a5d36
JM		 6968static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6969{
4c476991
JB		 6970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6971 struct net_device *dev = info->user_ptr[1];
f444de05 6972 struct ieee80211_channel *chan;
f62fab73
JB		 6973 struct cfg80211_assoc_request req = {};
6974 const u8 *bssid, *ssid;
6975 int err, ssid_len = 0;
636a5d36 6976
f4a11bb0
JB		 6977 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6978 return -EINVAL;
6979
6980 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6981 !info->attrs[NL80211_ATTR_SSID] ||
6982 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6983 return -EINVAL;
6984
4c476991
JB		 6985 if (!rdev->ops->assoc)
6986 return -EOPNOTSUPP;
636a5d36 6987
074ac8df 6988 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6989 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6990 return -EOPNOTSUPP;
eec60b03 6991
19957bb3 6992 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6993
664834de
JM		 6994 chan = nl80211_get_valid_chan(&rdev->wiphy,
6995 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6996 if (!chan)
4c476991 6997 return -EINVAL;
636a5d36 6998
19957bb3
JB		 6999 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7000 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 7001
7002 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 7003 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7004 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7005 }
7006
dc6382ce 7007 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 7008 enum nl80211_mfp mfp =
dc6382ce 7009 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 7010 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 7011 req.use_mfp = true;
4c476991
JB		 7012 else if (mfp != NL80211_MFP_NO)
7013 return -EINVAL;
dc6382ce
JM		 7014 }
7015
3e5d7649 7016 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 7017 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 7018
7e7c8926 7019 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 7020 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 7021
7022 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 7023 memcpy(&req.ht_capa_mask,
7024 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7025 sizeof(req.ht_capa_mask));
7e7c8926
BG		 7026
7027 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 7028 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 7029 return -EINVAL;
f62fab73
JB		 7030 memcpy(&req.ht_capa,
7031 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7032 sizeof(req.ht_capa));
7e7c8926
BG		 7033 }
7034
ee2aca34 7035 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 7036 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 7037
7038 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 7039 memcpy(&req.vht_capa_mask,
7040 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7041 sizeof(req.vht_capa_mask));
ee2aca34
JB		 7042
7043 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 7044 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 7045 return -EINVAL;
f62fab73
JB		 7046 memcpy(&req.vht_capa,
7047 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7048 sizeof(req.vht_capa));
ee2aca34
JB		 7049 }
7050
bab5ab7d
AK		 7051 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7052 if (!(rdev->wiphy.features &
7053 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7054 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7055 return -EINVAL;
7056 req.flags |= ASSOC_REQ_USE_RRM;
7057 }
7058
f62fab73 7059 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 7060 if (!err) {
7061 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 7062 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7063 ssid, ssid_len, &req);
91bf9b26
JB		 7064 wdev_unlock(dev->ieee80211_ptr);
7065 }
636a5d36 7066
636a5d36
JM		 7067 return err;
7068}
7069
7070static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7071{
4c476991
JB		 7072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7073 struct net_device *dev = info->user_ptr[1];
19957bb3 7074 const u8 *ie = NULL, *bssid;
91bf9b26 7075 int ie_len = 0, err;
19957bb3 7076 u16 reason_code;
d5cdfacb 7077 bool local_state_change;
636a5d36 7078
f4a11bb0
JB		 7079 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7080 return -EINVAL;
7081
7082 if (!info->attrs[NL80211_ATTR_MAC])
7083 return -EINVAL;
7084
7085 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7086 return -EINVAL;
7087
4c476991
JB		 7088 if (!rdev->ops->deauth)
7089 return -EOPNOTSUPP;
636a5d36 7090
074ac8df 7091 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7092 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7093 return -EOPNOTSUPP;
eec60b03 7094
19957bb3 7095 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7096
19957bb3
JB		 7097 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7098 if (reason_code == 0) {
f4a11bb0 7099 /* Reason Code 0 is reserved */
4c476991 7100 return -EINVAL;
255e737e 7101 }
636a5d36
JM		 7102
7103 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7104 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7105 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7106 }
7107
d5cdfacb
JM		 7108 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7109
91bf9b26
JB		 7110 wdev_lock(dev->ieee80211_ptr);
7111 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7112 local_state_change);
7113 wdev_unlock(dev->ieee80211_ptr);
7114 return err;
636a5d36
JM		 7115}
7116
7117static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7118{
4c476991
JB		 7119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7120 struct net_device *dev = info->user_ptr[1];
19957bb3 7121 const u8 *ie = NULL, *bssid;
91bf9b26 7122 int ie_len = 0, err;
19957bb3 7123 u16 reason_code;
d5cdfacb 7124 bool local_state_change;
636a5d36 7125
f4a11bb0
JB		 7126 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7127 return -EINVAL;
7128
7129 if (!info->attrs[NL80211_ATTR_MAC])
7130 return -EINVAL;
7131
7132 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7133 return -EINVAL;
7134
4c476991
JB		 7135 if (!rdev->ops->disassoc)
7136 return -EOPNOTSUPP;
636a5d36 7137
074ac8df 7138 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7139 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7140 return -EOPNOTSUPP;
eec60b03 7141
19957bb3 7142 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 7143
19957bb3
JB		 7144 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7145 if (reason_code == 0) {
f4a11bb0 7146 /* Reason Code 0 is reserved */
4c476991 7147 return -EINVAL;
255e737e 7148 }
636a5d36
JM		 7149
7150 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 7151 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7152 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 7153 }
7154
d5cdfacb
JM		 7155 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7156
91bf9b26
JB		 7157 wdev_lock(dev->ieee80211_ptr);
7158 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7159 local_state_change);
7160 wdev_unlock(dev->ieee80211_ptr);
7161 return err;
636a5d36
JM		 7162}
7163
dd5b4cc7
FF		 7164static bool
7165nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7166 int mcast_rate[IEEE80211_NUM_BANDS],
7167 int rateval)
7168{
7169 struct wiphy *wiphy = &rdev->wiphy;
7170 bool found = false;
7171 int band, i;
7172
7173 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7174 struct ieee80211_supported_band *sband;
7175
7176 sband = wiphy->bands[band];
7177 if (!sband)
7178 continue;
7179
7180 for (i = 0; i < sband->n_bitrates; i++) {
7181 if (sband->bitrates[i].bitrate == rateval) {
7182 mcast_rate[band] = i + 1;
7183 found = true;
7184 break;
7185 }
7186 }
7187 }
7188
7189 return found;
7190}
7191
04a773ad
JB		 7192static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7193{
4c476991
JB		 7194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7195 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 7196 struct cfg80211_ibss_params ibss;
7197 struct wiphy *wiphy;
fffd0934 7198 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 7199 int err;
7200
8e30bc55
JB		 7201 memset(&ibss, 0, sizeof(ibss));
7202
04a773ad
JB		 7203 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7204 return -EINVAL;
7205
683b6d3b 7206 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 7207 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7208 return -EINVAL;
7209
8e30bc55
JB		 7210 ibss.beacon_interval = 100;
7211
7212 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7213 ibss.beacon_interval =
7214 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7215 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7216 return -EINVAL;
7217 }
7218
4c476991
JB		 7219 if (!rdev->ops->join_ibss)
7220 return -EOPNOTSUPP;
04a773ad 7221
4c476991
JB		 7222 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7223 return -EOPNOTSUPP;
04a773ad 7224
79c97e97 7225 wiphy = &rdev->wiphy;
04a773ad 7226
39193498 7227 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 7228 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 7229
7230 if (!is_valid_ether_addr(ibss.bssid))
7231 return -EINVAL;
7232 }
04a773ad
JB		 7233 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7234 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7235
7236 if (info->attrs[NL80211_ATTR_IE]) {
7237 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7238 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7239 }
7240
683b6d3b
JB		 7241 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7242 if (err)
7243 return err;
04a773ad 7244
174e0cd2
IP		 7245 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7246 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 7247 return -EINVAL;
7248
2f301ab2 7249 switch (ibss.chandef.width) {
bf372645
SW		 7250 case NL80211_CHAN_WIDTH_5:
7251 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 7252 case NL80211_CHAN_WIDTH_20_NOHT:
7253 break;
7254 case NL80211_CHAN_WIDTH_20:
7255 case NL80211_CHAN_WIDTH_40:
7256 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7257 break;
7258 default:
c04d6150 7259 return -EINVAL;
2f301ab2 7260 }
db9c64cf 7261
04a773ad 7262 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 7263 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7264
fbd2c8dc
TP		 7265 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7266 u8 *rates =
7267 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7268 int n_rates =
7269 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7270 struct ieee80211_supported_band *sband =
683b6d3b 7271 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 7272
34850ab2
JB		 7273 err = ieee80211_get_ratemask(sband, rates, n_rates,
7274 &ibss.basic_rates);
7275 if (err)
7276 return err;
fbd2c8dc 7277 }
dd5b4cc7 7278
803768f5
SW		 7279 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7280 memcpy(&ibss.ht_capa_mask,
7281 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7282 sizeof(ibss.ht_capa_mask));
7283
7284 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7285 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7286 return -EINVAL;
7287 memcpy(&ibss.ht_capa,
7288 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7289 sizeof(ibss.ht_capa));
7290 }
7291
dd5b4cc7
FF		 7292 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7293 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7294 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7295 return -EINVAL;
fbd2c8dc 7296
4c476991 7297 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 7298 bool no_ht = false;
7299
4c476991 7300 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 7301 info->attrs[NL80211_ATTR_KEYS],
7302 &no_ht);
4c476991
JB		 7303 if (IS_ERR(connkeys))
7304 return PTR_ERR(connkeys);
de7044ee 7305
3d9d1d66
JB		 7306 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7307 no_ht) {
de7044ee
SM		 7308 kfree(connkeys);
7309 return -EINVAL;
7310 }
4c476991 7311 }
04a773ad 7312
267335d6
AQ		 7313 ibss.control_port =
7314 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7315
5336fa88
SW		 7316 ibss.userspace_handles_dfs =
7317 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7318
4c476991 7319 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 7320 if (err)
b47f610b 7321 kzfree(connkeys);
04a773ad
JB		 7322 return err;
7323}
7324
7325static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7326{
4c476991
JB		 7327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7328 struct net_device *dev = info->user_ptr[1];
04a773ad 7329
4c476991
JB		 7330 if (!rdev->ops->leave_ibss)
7331 return -EOPNOTSUPP;
04a773ad 7332
4c476991
JB		 7333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7334 return -EOPNOTSUPP;
04a773ad 7335
4c476991 7336 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7337}
7338
f4e583c8
AQ		 7339static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7340{
7341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7342 struct net_device *dev = info->user_ptr[1];
7343 int mcast_rate[IEEE80211_NUM_BANDS];
7344 u32 nla_rate;
7345 int err;
7346
7347 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7348 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7349 return -EOPNOTSUPP;
7350
7351 if (!rdev->ops->set_mcast_rate)
7352 return -EOPNOTSUPP;
7353
7354 memset(mcast_rate, 0, sizeof(mcast_rate));
7355
7356 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7357 return -EINVAL;
7358
7359 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7360 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7361 return -EINVAL;
7362
7363 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7364
7365 return err;
7366}
7367
ad7e718c
JB		 7368static struct sk_buff *
7369__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7370 int approxlen, u32 portid, u32 seq,
7371 enum nl80211_commands cmd,
567ffc35
JB		 7372 enum nl80211_attrs attr,
7373 const struct nl80211_vendor_cmd_info *info,
7374 gfp_t gfp)
ad7e718c
JB		 7375{
7376 struct sk_buff *skb;
7377 void *hdr;
7378 struct nlattr *data;
7379
7380 skb = nlmsg_new(approxlen + 100, gfp);
7381 if (!skb)
7382 return NULL;
7383
7384 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7385 if (!hdr) {
7386 kfree_skb(skb);
7387 return NULL;
7388 }
7389
7390 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7391 goto nla_put_failure;
567ffc35
JB		 7392
7393 if (info) {
7394 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7395 info->vendor_id))
7396 goto nla_put_failure;
7397 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7398 info->subcmd))
7399 goto nla_put_failure;
7400 }
7401
ad7e718c
JB		 7402 data = nla_nest_start(skb, attr);
7403
7404 ((void **)skb->cb)[0] = rdev;
7405 ((void **)skb->cb)[1] = hdr;
7406 ((void **)skb->cb)[2] = data;
7407
7408 return skb;
7409
7410 nla_put_failure:
7411 kfree_skb(skb);
7412 return NULL;
7413}
f4e583c8 7414
e03ad6ea
JB		 7415struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7416 enum nl80211_commands cmd,
7417 enum nl80211_attrs attr,
7418 int vendor_event_idx,
7419 int approxlen, gfp_t gfp)
7420{
f26cbf40 7421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7422 const struct nl80211_vendor_cmd_info *info;
7423
7424 switch (cmd) {
7425 case NL80211_CMD_TESTMODE:
7426 if (WARN_ON(vendor_event_idx != -1))
7427 return NULL;
7428 info = NULL;
7429 break;
7430 case NL80211_CMD_VENDOR:
7431 if (WARN_ON(vendor_event_idx < 0 ||
7432 vendor_event_idx >= wiphy->n_vendor_events))
7433 return NULL;
7434 info = &wiphy->vendor_events[vendor_event_idx];
7435 break;
7436 default:
7437 WARN_ON(1);
7438 return NULL;
7439 }
7440
7441 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7442 cmd, attr, info, gfp);
7443}
7444EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7445
7446void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7447{
7448 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7449 void *hdr = ((void **)skb->cb)[1];
7450 struct nlattr *data = ((void **)skb->cb)[2];
7451 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7452
bd8c78e7
JB		 7453 /* clear CB data for netlink core to own from now on */
7454 memset(skb->cb, 0, sizeof(skb->cb));
7455
e03ad6ea
JB		 7456 nla_nest_end(skb, data);
7457 genlmsg_end(skb, hdr);
7458
7459 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7460 mcgrp = NL80211_MCGRP_VENDOR;
7461
7462 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7463 mcgrp, gfp);
7464}
7465EXPORT_SYMBOL(__cfg80211_send_event_skb);
7466
aff89a9b 7467#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7468static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7469{
4c476991 7470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7471 struct wireless_dev *wdev =
7472 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7473 int err;
7474
fc73f11f
DS		 7475 if (!rdev->ops->testmode_cmd)
7476 return -EOPNOTSUPP;
7477
7478 if (IS_ERR(wdev)) {
7479 err = PTR_ERR(wdev);
7480 if (err != -EINVAL)
7481 return err;
7482 wdev = NULL;
7483 } else if (wdev->wiphy != &rdev->wiphy) {
7484 return -EINVAL;
7485 }
7486
aff89a9b
JB		 7487 if (!info->attrs[NL80211_ATTR_TESTDATA])
7488 return -EINVAL;
7489
ad7e718c 7490 rdev->cur_cmd_info = info;
fc73f11f 7491 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7492 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7493 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7494 rdev->cur_cmd_info = NULL;
aff89a9b 7495
aff89a9b
JB		 7496 return err;
7497}
7498
71063f0e
WYG		 7499static int nl80211_testmode_dump(struct sk_buff *skb,
7500 struct netlink_callback *cb)
7501{
00918d33 7502 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7503 int err;
7504 long phy_idx;
7505 void *data = NULL;
7506 int data_len = 0;
7507
5fe231e8
JB		 7508 rtnl_lock();
7509
71063f0e
WYG		 7510 if (cb->args[0]) {
7511 /*
7512 * 0 is a valid index, but not valid for args[0],
7513 * so we need to offset by 1.
7514 */
7515 phy_idx = cb->args[0] - 1;
7516 } else {
7517 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7518 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7519 nl80211_policy);
7520 if (err)
5fe231e8 7521 goto out_err;
00918d33 7522
2bd7e35d
JB		 7523 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7524 nl80211_fam.attrbuf);
7525 if (IS_ERR(rdev)) {
5fe231e8
JB		 7526 err = PTR_ERR(rdev);
7527 goto out_err;
00918d33 7528 }
2bd7e35d
JB		 7529 phy_idx = rdev->wiphy_idx;
7530 rdev = NULL;
2bd7e35d 7531
71063f0e
WYG		 7532 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7533 cb->args[1] =
7534 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7535 }
7536
7537 if (cb->args[1]) {
7538 data = nla_data((void *)cb->args[1]);
7539 data_len = nla_len((void *)cb->args[1]);
7540 }
7541
00918d33
JB		 7542 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7543 if (!rdev) {
5fe231e8
JB		 7544 err = -ENOENT;
7545 goto out_err;
71063f0e 7546 }
71063f0e 7547
00918d33 7548 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7549 err = -EOPNOTSUPP;
7550 goto out_err;
7551 }
7552
7553 while (1) {
15e47304 7554 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7555 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7556 NL80211_CMD_TESTMODE);
7557 struct nlattr *tmdata;
7558
cb35fba3
DC		 7559 if (!hdr)
7560 break;
7561
9360ffd1 7562 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7563 genlmsg_cancel(skb, hdr);
7564 break;
7565 }
7566
7567 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7568 if (!tmdata) {
7569 genlmsg_cancel(skb, hdr);
7570 break;
7571 }
e35e4d28 7572 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7573 nla_nest_end(skb, tmdata);
7574
7575 if (err == -ENOBUFS || err == -ENOENT) {
7576 genlmsg_cancel(skb, hdr);
7577 break;
7578 } else if (err) {
7579 genlmsg_cancel(skb, hdr);
7580 goto out_err;
7581 }
7582
7583 genlmsg_end(skb, hdr);
7584 }
7585
7586 err = skb->len;
7587 /* see above */
7588 cb->args[0] = phy_idx + 1;
7589 out_err:
5fe231e8 7590 rtnl_unlock();
71063f0e
WYG		 7591 return err;
7592}
aff89a9b
JB		 7593#endif
7594
b23aa676
SO		 7595static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7596{
4c476991
JB		 7597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7598 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7599 struct cfg80211_connect_params connect;
7600 struct wiphy *wiphy;
fffd0934 7601 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7602 int err;
7603
7604 memset(&connect, 0, sizeof(connect));
7605
7606 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7607 return -EINVAL;
7608
7609 if (!info->attrs[NL80211_ATTR_SSID] ||
7610 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7611 return -EINVAL;
7612
7613 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7614 connect.auth_type =
7615 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7616 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7617 NL80211_CMD_CONNECT))
b23aa676
SO		 7618 return -EINVAL;
7619 } else
7620 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7621
7622 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7623
c0692b8f 7624 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7625 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7626 if (err)
7627 return err;
b23aa676 7628
074ac8df 7629 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7631 return -EOPNOTSUPP;
b23aa676 7632
79c97e97 7633 wiphy = &rdev->wiphy;
b23aa676 7634
4486ea98
BS		 7635 connect.bg_scan_period = -1;
7636 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7637 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7638 connect.bg_scan_period =
7639 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7640 }
7641
b23aa676
SO		 7642 if (info->attrs[NL80211_ATTR_MAC])
7643 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7644 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7645 connect.bssid_hint =
7646 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7647 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7648 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7649
7650 if (info->attrs[NL80211_ATTR_IE]) {
7651 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7652 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7653 }
7654
cee00a95
JM		 7655 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7656 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7657 if (connect.mfp != NL80211_MFP_REQUIRED &&
7658 connect.mfp != NL80211_MFP_NO)
7659 return -EINVAL;
7660 } else {
7661 connect.mfp = NL80211_MFP_NO;
7662 }
7663
b23aa676 7664 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7665 connect.channel = nl80211_get_valid_chan(
7666 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7667 if (!connect.channel)
1df4a510
JM		 7668 return -EINVAL;
7669 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7670 connect.channel_hint = nl80211_get_valid_chan(
7671 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7672 if (!connect.channel_hint)
4c476991 7673 return -EINVAL;
b23aa676
SO		 7674 }
7675
fffd0934
JB		 7676 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7677 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7678 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7679 if (IS_ERR(connkeys))
7680 return PTR_ERR(connkeys);
fffd0934
JB		 7681 }
7682
7e7c8926
BG		 7683 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7684 connect.flags |= ASSOC_REQ_DISABLE_HT;
7685
7686 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7687 memcpy(&connect.ht_capa_mask,
7688 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7689 sizeof(connect.ht_capa_mask));
7690
7691 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7692 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7693 kzfree(connkeys);
7e7c8926 7694 return -EINVAL;
b4e4f47e 7695 }
7e7c8926
BG		 7696 memcpy(&connect.ht_capa,
7697 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7698 sizeof(connect.ht_capa));
7699 }
7700
ee2aca34
JB		 7701 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7702 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7703
7704 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7705 memcpy(&connect.vht_capa_mask,
7706 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7707 sizeof(connect.vht_capa_mask));
7708
7709 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7710 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7711 kzfree(connkeys);
ee2aca34
JB		 7712 return -EINVAL;
7713 }
7714 memcpy(&connect.vht_capa,
7715 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7716 sizeof(connect.vht_capa));
7717 }
7718
bab5ab7d
AK		 7719 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7720 if (!(rdev->wiphy.features &
7721 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7722 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7723 return -EINVAL;
7724 connect.flags |= ASSOC_REQ_USE_RRM;
7725 }
7726
83739b03
JB		 7727 wdev_lock(dev->ieee80211_ptr);
7728 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7729 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7730 if (err)
b47f610b 7731 kzfree(connkeys);
b23aa676
SO		 7732 return err;
7733}
7734
7735static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7736{
4c476991
JB		 7737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7738 struct net_device *dev = info->user_ptr[1];
b23aa676 7739 u16 reason;
83739b03 7740 int ret;
b23aa676
SO		 7741
7742 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7743 reason = WLAN_REASON_DEAUTH_LEAVING;
7744 else
7745 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7746
7747 if (reason == 0)
7748 return -EINVAL;
7749
074ac8df 7750 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7751 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7752 return -EOPNOTSUPP;
b23aa676 7753
83739b03
JB		 7754 wdev_lock(dev->ieee80211_ptr);
7755 ret = cfg80211_disconnect(rdev, dev, reason, true);
7756 wdev_unlock(dev->ieee80211_ptr);
7757 return ret;
b23aa676
SO		 7758}
7759
463d0183
JB		 7760static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7761{
4c476991 7762 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7763 struct net *net;
7764 int err;
7765 u32 pid;
7766
7767 if (!info->attrs[NL80211_ATTR_PID])
7768 return -EINVAL;
7769
7770 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7771
463d0183 7772 net = get_net_ns_by_pid(pid);
4c476991
JB		 7773 if (IS_ERR(net))
7774 return PTR_ERR(net);
463d0183
JB		 7775
7776 err = 0;
7777
7778 /* check if anything to do */
4c476991
JB		 7779 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7780 err = cfg80211_switch_netns(rdev, net);
463d0183 7781
463d0183 7782 put_net(net);
463d0183
JB		 7783 return err;
7784}
7785
67fbb16b
SO		 7786static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7787{
4c476991 7788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7789 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7790 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7791 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7792 struct cfg80211_pmksa pmksa;
7793
7794 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7795
7796 if (!info->attrs[NL80211_ATTR_MAC])
7797 return -EINVAL;
7798
7799 if (!info->attrs[NL80211_ATTR_PMKID])
7800 return -EINVAL;
7801
67fbb16b
SO		 7802 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7803 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7804
074ac8df 7805 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7806 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7807 return -EOPNOTSUPP;
67fbb16b
SO		 7808
7809 switch (info->genlhdr->cmd) {
7810 case NL80211_CMD_SET_PMKSA:
7811 rdev_ops = rdev->ops->set_pmksa;
7812 break;
7813 case NL80211_CMD_DEL_PMKSA:
7814 rdev_ops = rdev->ops->del_pmksa;
7815 break;
7816 default:
7817 WARN_ON(1);
7818 break;
7819 }
7820
4c476991
JB		 7821 if (!rdev_ops)
7822 return -EOPNOTSUPP;
67fbb16b 7823
4c476991 7824 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7825}
7826
7827static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7828{
4c476991
JB		 7829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7830 struct net_device *dev = info->user_ptr[1];
67fbb16b 7831
074ac8df 7832 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7833 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7834 return -EOPNOTSUPP;
67fbb16b 7835
4c476991
JB		 7836 if (!rdev->ops->flush_pmksa)
7837 return -EOPNOTSUPP;
67fbb16b 7838
e35e4d28 7839 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7840}
7841
109086ce
AN		 7842static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7843{
7844 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7845 struct net_device *dev = info->user_ptr[1];
7846 u8 action_code, dialog_token;
df942e7b 7847 u32 peer_capability = 0;
109086ce
AN		 7848 u16 status_code;
7849 u8 *peer;
31fa97c5 7850 bool initiator;
109086ce
AN		 7851
7852 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7853 !rdev->ops->tdls_mgmt)
7854 return -EOPNOTSUPP;
7855
7856 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7857 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7858 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7859 !info->attrs[NL80211_ATTR_IE] ||
7860 !info->attrs[NL80211_ATTR_MAC])
7861 return -EINVAL;
7862
7863 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7864 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7865 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7866 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7867 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7868 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7869 peer_capability =
7870 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7871
e35e4d28 7872 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7873 dialog_token, status_code, peer_capability,
31fa97c5 7874 initiator,
e35e4d28
HG		 7875 nla_data(info->attrs[NL80211_ATTR_IE]),
7876 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7877}
7878
7879static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7880{
7881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7882 struct net_device *dev = info->user_ptr[1];
7883 enum nl80211_tdls_operation operation;
7884 u8 *peer;
7885
7886 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7887 !rdev->ops->tdls_oper)
7888 return -EOPNOTSUPP;
7889
7890 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7891 !info->attrs[NL80211_ATTR_MAC])
7892 return -EINVAL;
7893
7894 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7895 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7896
e35e4d28 7897 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7898}
7899
9588bbd5
JM		 7900static int nl80211_remain_on_channel(struct sk_buff *skb,
7901 struct genl_info *info)
7902{
4c476991 7903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7904 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7905 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7906 struct sk_buff *msg;
7907 void *hdr;
7908 u64 cookie;
683b6d3b 7909 u32 duration;
9588bbd5
JM		 7910 int err;
7911
7912 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7913 !info->attrs[NL80211_ATTR_DURATION])
7914 return -EINVAL;
7915
7916 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7917
ebf348fc
JB		 7918 if (!rdev->ops->remain_on_channel ||
7919 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7920 return -EOPNOTSUPP;
7921
9588bbd5 7922 /*
ebf348fc
JB		 7923 * We should be on that channel for at least a minimum amount of
7924 * time (10ms) but no longer than the driver supports.
9588bbd5 7925 */
ebf348fc 7926 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7927 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7928 return -EINVAL;
7929
683b6d3b
JB		 7930 err = nl80211_parse_chandef(rdev, info, &chandef);
7931 if (err)
7932 return err;
9588bbd5
JM		 7933
7934 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7935 if (!msg)
7936 return -ENOMEM;
9588bbd5 7937
15e47304 7938 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7939 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7940 if (!hdr) {
7941 err = -ENOBUFS;
9588bbd5
JM		 7942 goto free_msg;
7943 }
7944
683b6d3b
JB		 7945 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7946 duration, &cookie);
9588bbd5
JM		 7947
7948 if (err)
7949 goto free_msg;
7950
9360ffd1
DM		 7951 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7952 goto nla_put_failure;
9588bbd5
JM		 7953
7954 genlmsg_end(msg, hdr);
4c476991
JB		 7955
7956 return genlmsg_reply(msg, info);
9588bbd5
JM		 7957
7958 nla_put_failure:
7959 err = -ENOBUFS;
7960 free_msg:
7961 nlmsg_free(msg);
9588bbd5
JM		 7962 return err;
7963}
7964
7965static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7966 struct genl_info *info)
7967{
4c476991 7968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7969 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7970 u64 cookie;
9588bbd5
JM		 7971
7972 if (!info->attrs[NL80211_ATTR_COOKIE])
7973 return -EINVAL;
7974
4c476991
JB		 7975 if (!rdev->ops->cancel_remain_on_channel)
7976 return -EOPNOTSUPP;
9588bbd5 7977
9588bbd5
JM		 7978 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7979
e35e4d28 7980 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7981}
7982
13ae75b1
JM		 7983static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7984 u8 *rates, u8 rates_len)
7985{
7986 u8 i;
7987 u32 mask = 0;
7988
7989 for (i = 0; i < rates_len; i++) {
7990 int rate = (rates[i] & 0x7f) * 5;
7991 int ridx;
7992 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7993 struct ieee80211_rate *srate =
7994 &sband->bitrates[ridx];
7995 if (rate == srate->bitrate) {
7996 mask |= 1 << ridx;
7997 break;
7998 }
7999 }
8000 if (ridx == sband->n_bitrates)
8001 return 0; /* rate not found */
8002 }
8003
8004 return mask;
8005}
8006
24db78c0
SW		 8007static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8008 u8 *rates, u8 rates_len,
8009 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8010{
8011 u8 i;
8012
8013 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8014
8015 for (i = 0; i < rates_len; i++) {
8016 int ridx, rbit;
8017
8018 ridx = rates[i] / 8;
8019 rbit = BIT(rates[i] % 8);
8020
8021 /* check validity */
910570b5 8022 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 8023 return false;
8024
8025 /* check availability */
8026 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8027 mcs[ridx] |= rbit;
8028 else
8029 return false;
8030 }
8031
8032 return true;
8033}
8034
204e35a9
JD		 8035static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8036{
8037 u16 mcs_mask = 0;
8038
8039 switch (vht_mcs_map) {
8040 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8041 break;
8042 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8043 mcs_mask = 0x00FF;
8044 break;
8045 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8046 mcs_mask = 0x01FF;
8047 break;
8048 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8049 mcs_mask = 0x03FF;
8050 break;
8051 default:
8052 break;
8053 }
8054
8055 return mcs_mask;
8056}
8057
8058static void vht_build_mcs_mask(u16 vht_mcs_map,
8059 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8060{
8061 u8 nss;
8062
8063 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8064 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8065 vht_mcs_map >>= 2;
8066 }
8067}
8068
8069static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8070 struct nl80211_txrate_vht *txrate,
8071 u16 mcs[NL80211_VHT_NSS_MAX])
8072{
8073 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8074 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8075 u8 i;
8076
8077 if (!sband->vht_cap.vht_supported)
8078 return false;
8079
8080 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8081
8082 /* Build vht_mcs_mask from VHT capabilities */
8083 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8084
8085 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8086 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8087 mcs[i] = txrate->mcs[i];
8088 else
8089 return false;
8090 }
8091
8092 return true;
8093}
8094
b54452b0 8095static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 8096 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8097 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 8098 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8099 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 8100 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 8101 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 8102};
8103
8104static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8105 struct genl_info *info)
8106{
8107 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 8108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 8109 struct cfg80211_bitrate_mask mask;
4c476991
JB		 8110 int rem, i;
8111 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 8112 struct nlattr *tx_rates;
8113 struct ieee80211_supported_band *sband;
204e35a9 8114 u16 vht_tx_mcs_map;
13ae75b1 8115
4c476991
JB		 8116 if (!rdev->ops->set_bitrate_mask)
8117 return -EOPNOTSUPP;
13ae75b1
JM		 8118
8119 memset(&mask, 0, sizeof(mask));
8120 /* Default to all rates enabled */
8121 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8122 sband = rdev->wiphy.bands[i];
7869303b
JD		 8123
8124 if (!sband)
8125 continue;
8126
8127 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 8128 memcpy(mask.control[i].ht_mcs,
7869303b 8129 sband->ht_cap.mcs.rx_mask,
d1e33e65 8130 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 8131
8132 if (!sband->vht_cap.vht_supported)
8133 continue;
8134
8135 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8136 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 8137 }
8138
b9243ab0
JD		 8139 /* if no rates are given set it back to the defaults */
8140 if (!info->attrs[NL80211_ATTR_TX_RATES])
8141 goto out;
8142
13ae75b1
JM		 8143 /*
8144 * The nested attribute uses enum nl80211_band as the index. This maps
8145 * directly to the enum ieee80211_band values used in cfg80211.
8146 */
24db78c0 8147 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 8148 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 8149 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 8150 int err;
8151
4c476991
JB		 8152 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8153 return -EINVAL;
13ae75b1 8154 sband = rdev->wiphy.bands[band];
4c476991
JB		 8155 if (sband == NULL)
8156 return -EINVAL;
ae811e21
JB		 8157 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8158 nla_len(tx_rates), nl80211_txattr_policy);
8159 if (err)
8160 return err;
13ae75b1
JM		 8161 if (tb[NL80211_TXRATE_LEGACY]) {
8162 mask.control[band].legacy = rateset_to_mask(
8163 sband,
8164 nla_data(tb[NL80211_TXRATE_LEGACY]),
8165 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 8166 if ((mask.control[band].legacy == 0) &&
8167 nla_len(tb[NL80211_TXRATE_LEGACY]))
8168 return -EINVAL;
24db78c0 8169 }
d1e33e65 8170 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 8171 if (!ht_rateset_to_mask(
8172 sband,
d1e33e65
JD		 8173 nla_data(tb[NL80211_TXRATE_HT]),
8174 nla_len(tb[NL80211_TXRATE_HT]),
8175 mask.control[band].ht_mcs))
24db78c0
SW		 8176 return -EINVAL;
8177 }
204e35a9
JD		 8178 if (tb[NL80211_TXRATE_VHT]) {
8179 if (!vht_set_mcs_mask(
8180 sband,
8181 nla_data(tb[NL80211_TXRATE_VHT]),
8182 mask.control[band].vht_mcs))
8183 return -EINVAL;
8184 }
0b9323f6
JD		 8185 if (tb[NL80211_TXRATE_GI]) {
8186 mask.control[band].gi =
8187 nla_get_u8(tb[NL80211_TXRATE_GI]);
8188 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8189 return -EINVAL;
8190 }
24db78c0
SW		 8191
8192 if (mask.control[band].legacy == 0) {
204e35a9
JD		 8193 /* don't allow empty legacy rates if HT or VHT
8194 * are not even supported.
8195 */
8196 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8197 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 8198 return -EINVAL;
8199
8200 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 8201 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 8202 goto out;
8203
8204 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8205 if (mask.control[band].vht_mcs[i])
8206 goto out;
24db78c0
SW		 8207
8208 /* legacy and mcs rates may not be both empty */
204e35a9 8209 return -EINVAL;
13ae75b1
JM		 8210 }
8211 }
8212
b9243ab0 8213out:
e35e4d28 8214 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 8215}
8216
2e161f78 8217static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8218{
4c476991 8219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8220 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 8221 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 8222
8223 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8224 return -EINVAL;
8225
2e161f78
JB		 8226 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8227 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 8228
71bbc994
JB		 8229 switch (wdev->iftype) {
8230 case NL80211_IFTYPE_STATION:
8231 case NL80211_IFTYPE_ADHOC:
8232 case NL80211_IFTYPE_P2P_CLIENT:
8233 case NL80211_IFTYPE_AP:
8234 case NL80211_IFTYPE_AP_VLAN:
8235 case NL80211_IFTYPE_MESH_POINT:
8236 case NL80211_IFTYPE_P2P_GO:
98104fde 8237 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8238 break;
8239 default:
4c476991 8240 return -EOPNOTSUPP;
71bbc994 8241 }
026331c4
JM		 8242
8243 /* not much point in registering if we can't reply */
4c476991
JB		 8244 if (!rdev->ops->mgmt_tx)
8245 return -EOPNOTSUPP;
026331c4 8246
15e47304 8247 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 8248 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8249 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 8250}
8251
2e161f78 8252static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 8253{
4c476991 8254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8255 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 8256 struct cfg80211_chan_def chandef;
026331c4 8257 int err;
d64d373f 8258 void *hdr = NULL;
026331c4 8259 u64 cookie;
e247bd90 8260 struct sk_buff *msg = NULL;
b176e629
AO		 8261 struct cfg80211_mgmt_tx_params params = {
8262 .dont_wait_for_ack =
8263 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8264 };
026331c4 8265
683b6d3b 8266 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 8267 return -EINVAL;
8268
4c476991
JB		 8269 if (!rdev->ops->mgmt_tx)
8270 return -EOPNOTSUPP;
026331c4 8271
71bbc994 8272 switch (wdev->iftype) {
ea141b75
AQ		 8273 case NL80211_IFTYPE_P2P_DEVICE:
8274 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8275 return -EINVAL;
71bbc994
JB		 8276 case NL80211_IFTYPE_STATION:
8277 case NL80211_IFTYPE_ADHOC:
8278 case NL80211_IFTYPE_P2P_CLIENT:
8279 case NL80211_IFTYPE_AP:
8280 case NL80211_IFTYPE_AP_VLAN:
8281 case NL80211_IFTYPE_MESH_POINT:
8282 case NL80211_IFTYPE_P2P_GO:
8283 break;
8284 default:
4c476991 8285 return -EOPNOTSUPP;
71bbc994 8286 }
026331c4 8287
f7ca38df 8288 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 8289 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 8290 return -EINVAL;
b176e629 8291 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 8292
8293 /*
8294 * We should wait on the channel for at least a minimum amount
8295 * of time (10ms) but no longer than the driver supports.
8296 */
b176e629
AO		 8297 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8298 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 8299 return -EINVAL;
8300
f7ca38df
JB		 8301 }
8302
b176e629 8303 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 8304
b176e629 8305 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 8306 return -EINVAL;
8307
b176e629 8308 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 8309
ea141b75
AQ		 8310 /* get the channel if any has been specified, otherwise pass NULL to
8311 * the driver. The latter will use the current one
8312 */
8313 chandef.chan = NULL;
8314 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8315 err = nl80211_parse_chandef(rdev, info, &chandef);
8316 if (err)
8317 return err;
8318 }
8319
b176e629 8320 if (!chandef.chan && params.offchan)
ea141b75 8321 return -EINVAL;
026331c4 8322
34d22ce2
AO		 8323 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8324 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8325
8326 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8327 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8328 int i;
8329
8330 if (len % sizeof(u16))
8331 return -EINVAL;
8332
8333 params.n_csa_offsets = len / sizeof(u16);
8334 params.csa_offsets =
8335 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8336
8337 /* check that all the offsets fit the frame */
8338 for (i = 0; i < params.n_csa_offsets; i++) {
8339 if (params.csa_offsets[i] >= params.len)
8340 return -EINVAL;
8341 }
8342 }
8343
b176e629 8344 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8345 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8346 if (!msg)
8347 return -ENOMEM;
026331c4 8348
15e47304 8349 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8350 NL80211_CMD_FRAME);
cb35fba3
DC		 8351 if (!hdr) {
8352 err = -ENOBUFS;
e247bd90
JB		 8353 goto free_msg;
8354 }
026331c4 8355 }
e247bd90 8356
b176e629
AO		 8357 params.chan = chandef.chan;
8358 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8359 if (err)
8360 goto free_msg;
8361
e247bd90 8362 if (msg) {
9360ffd1
DM		 8363 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8364 goto nla_put_failure;
026331c4 8365
e247bd90
JB		 8366 genlmsg_end(msg, hdr);
8367 return genlmsg_reply(msg, info);
8368 }
8369
8370 return 0;
026331c4
JM		 8371
8372 nla_put_failure:
8373 err = -ENOBUFS;
8374 free_msg:
8375 nlmsg_free(msg);
026331c4
JM		 8376 return err;
8377}
8378
f7ca38df
JB		 8379static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8380{
8381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8382 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8383 u64 cookie;
8384
8385 if (!info->attrs[NL80211_ATTR_COOKIE])
8386 return -EINVAL;
8387
8388 if (!rdev->ops->mgmt_tx_cancel_wait)
8389 return -EOPNOTSUPP;
8390
71bbc994
JB		 8391 switch (wdev->iftype) {
8392 case NL80211_IFTYPE_STATION:
8393 case NL80211_IFTYPE_ADHOC:
8394 case NL80211_IFTYPE_P2P_CLIENT:
8395 case NL80211_IFTYPE_AP:
8396 case NL80211_IFTYPE_AP_VLAN:
8397 case NL80211_IFTYPE_P2P_GO:
98104fde 8398 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8399 break;
8400 default:
f7ca38df 8401 return -EOPNOTSUPP;
71bbc994 8402 }
f7ca38df
JB		 8403
8404 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8405
e35e4d28 8406 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8407}
8408
ffb9eb3d
KV		 8409static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8410{
4c476991 8411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8412 struct wireless_dev *wdev;
4c476991 8413 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8414 u8 ps_state;
8415 bool state;
8416 int err;
8417
4c476991
JB		 8418 if (!info->attrs[NL80211_ATTR_PS_STATE])
8419 return -EINVAL;
ffb9eb3d
KV		 8420
8421 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8422
4c476991
JB		 8423 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8424 return -EINVAL;
ffb9eb3d
KV		 8425
8426 wdev = dev->ieee80211_ptr;
8427
4c476991
JB		 8428 if (!rdev->ops->set_power_mgmt)
8429 return -EOPNOTSUPP;
ffb9eb3d
KV		 8430
8431 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8432
8433 if (state == wdev->ps)
4c476991 8434 return 0;
ffb9eb3d 8435
e35e4d28 8436 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8437 if (!err)
8438 wdev->ps = state;
ffb9eb3d
KV		 8439 return err;
8440}
8441
8442static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8443{
4c476991 8444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8445 enum nl80211_ps_state ps_state;
8446 struct wireless_dev *wdev;
4c476991 8447 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8448 struct sk_buff *msg;
8449 void *hdr;
8450 int err;
8451
ffb9eb3d
KV		 8452 wdev = dev->ieee80211_ptr;
8453
4c476991
JB		 8454 if (!rdev->ops->set_power_mgmt)
8455 return -EOPNOTSUPP;
ffb9eb3d
KV		 8456
8457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8458 if (!msg)
8459 return -ENOMEM;
ffb9eb3d 8460
15e47304 8461 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8462 NL80211_CMD_GET_POWER_SAVE);
8463 if (!hdr) {
4c476991 8464 err = -ENOBUFS;
ffb9eb3d
KV		 8465 goto free_msg;
8466 }
8467
8468 if (wdev->ps)
8469 ps_state = NL80211_PS_ENABLED;
8470 else
8471 ps_state = NL80211_PS_DISABLED;
8472
9360ffd1
DM		 8473 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8474 goto nla_put_failure;
ffb9eb3d
KV		 8475
8476 genlmsg_end(msg, hdr);
4c476991 8477 return genlmsg_reply(msg, info);
ffb9eb3d 8478
4c476991 8479 nla_put_failure:
ffb9eb3d 8480 err = -ENOBUFS;
4c476991 8481 free_msg:
ffb9eb3d 8482 nlmsg_free(msg);
ffb9eb3d
KV		 8483 return err;
8484}
8485
94e860f1
JB		 8486static const struct nla_policy
8487nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8488 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8489 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8490 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8491 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8492 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8493 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8494};
8495
84f10708 8496static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8497 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8498{
8499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8500 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8501 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8502
d9d8b019 8503 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8504 return -EINVAL;
8505
84f10708
TP		 8506 if (!rdev->ops->set_cqm_txe_config)
8507 return -EOPNOTSUPP;
8508
8509 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8510 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8511 return -EOPNOTSUPP;
8512
e35e4d28 8513 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8514}
8515
d6dc1a38
JO		 8516static int nl80211_set_cqm_rssi(struct genl_info *info,
8517 s32 threshold, u32 hysteresis)
8518{
4c476991 8519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8520 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8521 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8522
8523 if (threshold > 0)
8524 return -EINVAL;
8525
1da5fcc8
JB		 8526 /* disabling - hysteresis should also be zero then */
8527 if (threshold == 0)
8528 hysteresis = 0;
d6dc1a38 8529
4c476991
JB		 8530 if (!rdev->ops->set_cqm_rssi_config)
8531 return -EOPNOTSUPP;
d6dc1a38 8532
074ac8df 8533 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8534 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8535 return -EOPNOTSUPP;
d6dc1a38 8536
e35e4d28 8537 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8538}
8539
8540static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8541{
8542 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8543 struct nlattr *cqm;
8544 int err;
8545
8546 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8547 if (!cqm)
8548 return -EINVAL;
d6dc1a38
JO		 8549
8550 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8551 nl80211_attr_cqm_policy);
8552 if (err)
1da5fcc8 8553 return err;
d6dc1a38
JO		 8554
8555 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8556 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8557 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8558 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8559
1da5fcc8
JB		 8560 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8561 }
8562
8563 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8564 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8565 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8566 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8567 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8568 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8569
8570 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8571 }
8572
8573 return -EINVAL;
d6dc1a38
JO		 8574}
8575
6e0bd6c3
RL		 8576static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8577{
8578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8579 struct net_device *dev = info->user_ptr[1];
8580 struct ocb_setup setup = {};
8581 int err;
8582
8583 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8584 if (err)
8585 return err;
8586
8587 return cfg80211_join_ocb(rdev, dev, &setup);
8588}
8589
8590static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8591{
8592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8593 struct net_device *dev = info->user_ptr[1];
8594
8595 return cfg80211_leave_ocb(rdev, dev);
8596}
8597
29cbe68c
JB		 8598static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8599{
8600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8601 struct net_device *dev = info->user_ptr[1];
8602 struct mesh_config cfg;
c80d545d 8603 struct mesh_setup setup;
29cbe68c
JB		 8604 int err;
8605
8606 /* start with default */
8607 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8608 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8609
24bdd9f4 8610 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8611 /* and parse parameters if given */
24bdd9f4 8612 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8613 if (err)
8614 return err;
8615 }
8616
8617 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8618 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8619 return -EINVAL;
8620
c80d545d
JC		 8621 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8622 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8623
4bb62344
CYY		 8624 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8625 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8626 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8627 return -EINVAL;
8628
9bdbf04d
MP		 8629 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8630 setup.beacon_interval =
8631 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8632 if (setup.beacon_interval < 10 ||
8633 setup.beacon_interval > 10000)
8634 return -EINVAL;
8635 }
8636
8637 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8638 setup.dtim_period =
8639 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8640 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8641 return -EINVAL;
8642 }
8643
c80d545d
JC		 8644 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8645 /* parse additional setup parameters if given */
8646 err = nl80211_parse_mesh_setup(info, &setup);
8647 if (err)
8648 return err;
8649 }
8650
d37bb18a
TP		 8651 if (setup.user_mpm)
8652 cfg.auto_open_plinks = false;
8653
cc1d2806 8654 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8655 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8656 if (err)
8657 return err;
cc1d2806
JB		 8658 } else {
8659 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8660 setup.chandef.chan = NULL;
cc1d2806
JB		 8661 }
8662
ffb3cf30
AN		 8663 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8664 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8665 int n_rates =
8666 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8667 struct ieee80211_supported_band *sband;
8668
8669 if (!setup.chandef.chan)
8670 return -EINVAL;
8671
8672 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8673
8674 err = ieee80211_get_ratemask(sband, rates, n_rates,
8675 &setup.basic_rates);
8676 if (err)
8677 return err;
8678 }
8679
c80d545d 8680 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8681}
8682
8683static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8684{
8685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8686 struct net_device *dev = info->user_ptr[1];
8687
8688 return cfg80211_leave_mesh(rdev, dev);
8689}
8690
dfb89c56 8691#ifdef CONFIG_PM
bb92d199
AK		 8692static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8693 struct cfg80211_registered_device *rdev)
8694{
6abb9cb9 8695 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8696 struct nlattr *nl_pats, *nl_pat;
8697 int i, pat_len;
8698
6abb9cb9 8699 if (!wowlan->n_patterns)
bb92d199
AK		 8700 return 0;
8701
8702 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8703 if (!nl_pats)
8704 return -ENOBUFS;
8705
6abb9cb9 8706 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8707 nl_pat = nla_nest_start(msg, i + 1);
8708 if (!nl_pat)
8709 return -ENOBUFS;
6abb9cb9 8710 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8711 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8712 wowlan->patterns[i].mask) ||
50ac6607
AK		 8713 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8714 wowlan->patterns[i].pattern) ||
8715 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8716 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8717 return -ENOBUFS;
8718 nla_nest_end(msg, nl_pat);
8719 }
8720 nla_nest_end(msg, nl_pats);
8721
8722 return 0;
8723}
8724
2a0e047e
JB		 8725static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8726 struct cfg80211_wowlan_tcp *tcp)
8727{
8728 struct nlattr *nl_tcp;
8729
8730 if (!tcp)
8731 return 0;
8732
8733 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8734 if (!nl_tcp)
8735 return -ENOBUFS;
8736
8737 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8738 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8739 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8740 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8741 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8742 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8743 tcp->payload_len, tcp->payload) ||
8744 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8745 tcp->data_interval) ||
8746 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8747 tcp->wake_len, tcp->wake_data) ||
8748 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8749 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8750 return -ENOBUFS;
8751
8752 if (tcp->payload_seq.len &&
8753 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8754 sizeof(tcp->payload_seq), &tcp->payload_seq))
8755 return -ENOBUFS;
8756
8757 if (tcp->payload_tok.len &&
8758 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8759 sizeof(tcp->payload_tok) + tcp->tokens_size,
8760 &tcp->payload_tok))
8761 return -ENOBUFS;
8762
e248ad30
JB		 8763 nla_nest_end(msg, nl_tcp);
8764
2a0e047e
JB		 8765 return 0;
8766}
8767
75453ccb
LC		 8768static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8769 struct cfg80211_sched_scan_request *req)
8770{
8771 struct nlattr *nd, *freqs, *matches, *match;
8772 int i;
8773
8774 if (!req)
8775 return 0;
8776
8777 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8778 if (!nd)
8779 return -ENOBUFS;
8780
8781 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8782 return -ENOBUFS;
8783
8784 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8785 if (!freqs)
8786 return -ENOBUFS;
8787
8788 for (i = 0; i < req->n_channels; i++)
8789 nla_put_u32(msg, i, req->channels[i]->center_freq);
8790
8791 nla_nest_end(msg, freqs);
8792
8793 if (req->n_match_sets) {
8794 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8795 for (i = 0; i < req->n_match_sets; i++) {
8796 match = nla_nest_start(msg, i);
8797 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8798 req->match_sets[i].ssid.ssid_len,
8799 req->match_sets[i].ssid.ssid);
8800 nla_nest_end(msg, match);
8801 }
8802 nla_nest_end(msg, matches);
8803 }
8804
8805 nla_nest_end(msg, nd);
8806
8807 return 0;
8808}
8809
ff1b6e69
JB		 8810static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8811{
8812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8813 struct sk_buff *msg;
8814 void *hdr;
2a0e047e 8815 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8816
964dc9e2 8817 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8818 return -EOPNOTSUPP;
8819
6abb9cb9 8820 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8821 /* adjust size to have room for all the data */
6abb9cb9
JB		 8822 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8823 rdev->wiphy.wowlan_config->tcp->payload_len +
8824 rdev->wiphy.wowlan_config->tcp->wake_len +
8825 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8826 }
8827
8828 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8829 if (!msg)
8830 return -ENOMEM;
8831
15e47304 8832 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8833 NL80211_CMD_GET_WOWLAN);
8834 if (!hdr)
8835 goto nla_put_failure;
8836
6abb9cb9 8837 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8838 struct nlattr *nl_wowlan;
8839
8840 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8841 if (!nl_wowlan)
8842 goto nla_put_failure;
8843
6abb9cb9 8844 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8845 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8846 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8847 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8848 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8849 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8850 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8851 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8852 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8853 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8854 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8855 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8856 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8857 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8858 goto nla_put_failure;
2a0e047e 8859
bb92d199
AK		 8860 if (nl80211_send_wowlan_patterns(msg, rdev))
8861 goto nla_put_failure;
2a0e047e 8862
6abb9cb9
JB		 8863 if (nl80211_send_wowlan_tcp(msg,
8864 rdev->wiphy.wowlan_config->tcp))
2a0e047e 8865 goto nla_put_failure;
75453ccb
LC		 8866
8867 if (nl80211_send_wowlan_nd(
8868 msg,
8869 rdev->wiphy.wowlan_config->nd_config))
8870 goto nla_put_failure;
2a0e047e 8871
ff1b6e69
JB		 8872 nla_nest_end(msg, nl_wowlan);
8873 }
8874
8875 genlmsg_end(msg, hdr);
8876 return genlmsg_reply(msg, info);
8877
8878nla_put_failure:
8879 nlmsg_free(msg);
8880 return -ENOBUFS;
8881}
8882
2a0e047e
JB		 8883static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8884 struct nlattr *attr,
8885 struct cfg80211_wowlan *trig)
8886{
8887 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8888 struct cfg80211_wowlan_tcp *cfg;
8889 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8890 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8891 u32 size;
8892 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8893 int err, port;
8894
964dc9e2 8895 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8896 return -EINVAL;
8897
8898 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8899 nla_data(attr), nla_len(attr),
8900 nl80211_wowlan_tcp_policy);
8901 if (err)
8902 return err;
8903
8904 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8905 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8906 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8907 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8908 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8909 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8910 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8911 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8912 return -EINVAL;
8913
8914 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8915 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8916 return -EINVAL;
8917
8918 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8919 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8920 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8921 return -EINVAL;
8922
8923 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8924 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8925 return -EINVAL;
8926
8927 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8928 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8929 return -EINVAL;
8930
8931 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8932 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8933
8934 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8935 tokens_size = tokln - sizeof(*tok);
8936
8937 if (!tok->len || tokens_size % tok->len)
8938 return -EINVAL;
964dc9e2 8939 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8940 return -EINVAL;
964dc9e2 8941 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8942 return -EINVAL;
964dc9e2 8943 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8944 return -EINVAL;
964dc9e2 8945 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8946 return -EINVAL;
8947 if (tok->offset + tok->len > data_size)
8948 return -EINVAL;
8949 }
8950
8951 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8952 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8953 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8954 return -EINVAL;
8955 if (seq->len == 0 || seq->len > 4)
8956 return -EINVAL;
8957 if (seq->len + seq->offset > data_size)
8958 return -EINVAL;
8959 }
8960
8961 size = sizeof(*cfg);
8962 size += data_size;
8963 size += wake_size + wake_mask_size;
8964 size += tokens_size;
8965
8966 cfg = kzalloc(size, GFP_KERNEL);
8967 if (!cfg)
8968 return -ENOMEM;
8969 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8970 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8971 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8972 ETH_ALEN);
8973 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8974 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8975 else
8976 port = 0;
8977#ifdef CONFIG_INET
8978 /* allocate a socket and port for it and use it */
8979 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8980 IPPROTO_TCP, &cfg->sock, 1);
8981 if (err) {
8982 kfree(cfg);
8983 return err;
8984 }
8985 if (inet_csk_get_port(cfg->sock->sk, port)) {
8986 sock_release(cfg->sock);
8987 kfree(cfg);
8988 return -EADDRINUSE;
8989 }
8990 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8991#else
8992 if (!port) {
8993 kfree(cfg);
8994 return -EINVAL;
8995 }
8996 cfg->src_port = port;
8997#endif
8998
8999 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9000 cfg->payload_len = data_size;
9001 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9002 memcpy((void *)cfg->payload,
9003 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9004 data_size);
9005 if (seq)
9006 cfg->payload_seq = *seq;
9007 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9008 cfg->wake_len = wake_size;
9009 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9010 memcpy((void *)cfg->wake_data,
9011 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9012 wake_size);
9013 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9014 data_size + wake_size;
9015 memcpy((void *)cfg->wake_mask,
9016 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9017 wake_mask_size);
9018 if (tok) {
9019 cfg->tokens_size = tokens_size;
9020 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9021 }
9022
9023 trig->tcp = cfg;
9024
9025 return 0;
9026}
9027
8cd4d456
LC		 9028static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9029 const struct wiphy_wowlan_support *wowlan,
9030 struct nlattr *attr,
9031 struct cfg80211_wowlan *trig)
9032{
9033 struct nlattr **tb;
9034 int err;
9035
9036 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9037 if (!tb)
9038 return -ENOMEM;
9039
9040 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9041 err = -EOPNOTSUPP;
9042 goto out;
9043 }
9044
9045 err = nla_parse(tb, NL80211_ATTR_MAX,
9046 nla_data(attr), nla_len(attr),
9047 nl80211_policy);
9048 if (err)
9049 goto out;
9050
ad2b26ab 9051 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8cd4d456
LC		 9052 err = PTR_ERR_OR_ZERO(trig->nd_config);
9053 if (err)
9054 trig->nd_config = NULL;
9055
9056out:
9057 kfree(tb);
9058 return err;
9059}
9060
ff1b6e69
JB		 9061static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9062{
9063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9064 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 9065 struct cfg80211_wowlan new_triggers = {};
ae33bd81 9066 struct cfg80211_wowlan *ntrig;
964dc9e2 9067 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 9068 int err, i;
6abb9cb9 9069 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 9070
964dc9e2 9071 if (!wowlan)
ff1b6e69
JB		 9072 return -EOPNOTSUPP;
9073
ae33bd81
JB		 9074 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9075 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9076 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 9077 goto set_wakeup;
9078 }
ff1b6e69
JB		 9079
9080 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9081 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9082 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9083 nl80211_wowlan_policy);
9084 if (err)
9085 return err;
9086
9087 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9088 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9089 return -EINVAL;
9090 new_triggers.any = true;
9091 }
9092
9093 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9094 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9095 return -EINVAL;
9096 new_triggers.disconnect = true;
9097 }
9098
9099 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9100 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9101 return -EINVAL;
9102 new_triggers.magic_pkt = true;
9103 }
9104
77dbbb13
JB		 9105 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9106 return -EINVAL;
9107
9108 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9109 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9110 return -EINVAL;
9111 new_triggers.gtk_rekey_failure = true;
9112 }
9113
9114 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9115 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9116 return -EINVAL;
9117 new_triggers.eap_identity_req = true;
9118 }
9119
9120 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9121 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9122 return -EINVAL;
9123 new_triggers.four_way_handshake = true;
9124 }
9125
9126 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9127 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9128 return -EINVAL;
9129 new_triggers.rfkill_release = true;
9130 }
9131
ff1b6e69
JB		 9132 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9133 struct nlattr *pat;
9134 int n_patterns = 0;
bb92d199 9135 int rem, pat_len, mask_len, pkt_offset;
50ac6607 9136 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 9137
9138 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9139 rem)
9140 n_patterns++;
9141 if (n_patterns > wowlan->n_patterns)
9142 return -EINVAL;
9143
9144 new_triggers.patterns = kcalloc(n_patterns,
9145 sizeof(new_triggers.patterns[0]),
9146 GFP_KERNEL);
9147 if (!new_triggers.patterns)
9148 return -ENOMEM;
9149
9150 new_triggers.n_patterns = n_patterns;
9151 i = 0;
9152
9153 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9154 rem) {
922bd80f
JB		 9155 u8 *mask_pat;
9156
50ac6607
AK		 9157 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9158 nla_len(pat), NULL);
ff1b6e69 9159 err = -EINVAL;
50ac6607
AK		 9160 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9161 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 9162 goto error;
50ac6607 9163 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 9164 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 9165 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 9166 goto error;
9167 if (pat_len > wowlan->pattern_max_len ||
9168 pat_len < wowlan->pattern_min_len)
9169 goto error;
9170
50ac6607 9171 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 9172 pkt_offset = 0;
9173 else
9174 pkt_offset = nla_get_u32(
50ac6607 9175 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 9176 if (pkt_offset > wowlan->max_pkt_offset)
9177 goto error;
9178 new_triggers.patterns[i].pkt_offset = pkt_offset;
9179
922bd80f
JB		 9180 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9181 if (!mask_pat) {
ff1b6e69
JB		 9182 err = -ENOMEM;
9183 goto error;
9184 }
922bd80f
JB		 9185 new_triggers.patterns[i].mask = mask_pat;
9186 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 9187 mask_len);
922bd80f
JB		 9188 mask_pat += mask_len;
9189 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 9190 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 9191 memcpy(mask_pat,
50ac6607 9192 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 9193 pat_len);
9194 i++;
9195 }
9196 }
9197
2a0e047e
JB		 9198 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9199 err = nl80211_parse_wowlan_tcp(
9200 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9201 &new_triggers);
9202 if (err)
9203 goto error;
9204 }
9205
8cd4d456
LC		 9206 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9207 err = nl80211_parse_wowlan_nd(
9208 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9209 &new_triggers);
9210 if (err)
9211 goto error;
9212 }
9213
ae33bd81
JB		 9214 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9215 if (!ntrig) {
9216 err = -ENOMEM;
9217 goto error;
ff1b6e69 9218 }
ae33bd81 9219 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 9220 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 9221
ae33bd81 9222 set_wakeup:
6abb9cb9
JB		 9223 if (rdev->ops->set_wakeup &&
9224 prev_enabled != !!rdev->wiphy.wowlan_config)
9225 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 9226
ff1b6e69
JB		 9227 return 0;
9228 error:
9229 for (i = 0; i < new_triggers.n_patterns; i++)
9230 kfree(new_triggers.patterns[i].mask);
9231 kfree(new_triggers.patterns);
2a0e047e
JB		 9232 if (new_triggers.tcp && new_triggers.tcp->sock)
9233 sock_release(new_triggers.tcp->sock);
9234 kfree(new_triggers.tcp);
ff1b6e69
JB		 9235 return err;
9236}
dfb89c56 9237#endif
ff1b6e69 9238
be29b99a
AK		 9239static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9240 struct cfg80211_registered_device *rdev)
9241{
9242 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9243 int i, j, pat_len;
9244 struct cfg80211_coalesce_rules *rule;
9245
9246 if (!rdev->coalesce->n_rules)
9247 return 0;
9248
9249 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9250 if (!nl_rules)
9251 return -ENOBUFS;
9252
9253 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9254 nl_rule = nla_nest_start(msg, i + 1);
9255 if (!nl_rule)
9256 return -ENOBUFS;
9257
9258 rule = &rdev->coalesce->rules[i];
9259 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9260 rule->delay))
9261 return -ENOBUFS;
9262
9263 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9264 rule->condition))
9265 return -ENOBUFS;
9266
9267 nl_pats = nla_nest_start(msg,
9268 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9269 if (!nl_pats)
9270 return -ENOBUFS;
9271
9272 for (j = 0; j < rule->n_patterns; j++) {
9273 nl_pat = nla_nest_start(msg, j + 1);
9274 if (!nl_pat)
9275 return -ENOBUFS;
9276 pat_len = rule->patterns[j].pattern_len;
9277 if (nla_put(msg, NL80211_PKTPAT_MASK,
9278 DIV_ROUND_UP(pat_len, 8),
9279 rule->patterns[j].mask) ||
9280 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9281 rule->patterns[j].pattern) ||
9282 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9283 rule->patterns[j].pkt_offset))
9284 return -ENOBUFS;
9285 nla_nest_end(msg, nl_pat);
9286 }
9287 nla_nest_end(msg, nl_pats);
9288 nla_nest_end(msg, nl_rule);
9289 }
9290 nla_nest_end(msg, nl_rules);
9291
9292 return 0;
9293}
9294
9295static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9296{
9297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9298 struct sk_buff *msg;
9299 void *hdr;
9300
9301 if (!rdev->wiphy.coalesce)
9302 return -EOPNOTSUPP;
9303
9304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9305 if (!msg)
9306 return -ENOMEM;
9307
9308 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9309 NL80211_CMD_GET_COALESCE);
9310 if (!hdr)
9311 goto nla_put_failure;
9312
9313 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9314 goto nla_put_failure;
9315
9316 genlmsg_end(msg, hdr);
9317 return genlmsg_reply(msg, info);
9318
9319nla_put_failure:
9320 nlmsg_free(msg);
9321 return -ENOBUFS;
9322}
9323
9324void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9325{
9326 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9327 int i, j;
9328 struct cfg80211_coalesce_rules *rule;
9329
9330 if (!coalesce)
9331 return;
9332
9333 for (i = 0; i < coalesce->n_rules; i++) {
9334 rule = &coalesce->rules[i];
9335 for (j = 0; j < rule->n_patterns; j++)
9336 kfree(rule->patterns[j].mask);
9337 kfree(rule->patterns);
9338 }
9339 kfree(coalesce->rules);
9340 kfree(coalesce);
9341 rdev->coalesce = NULL;
9342}
9343
9344static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9345 struct nlattr *rule,
9346 struct cfg80211_coalesce_rules *new_rule)
9347{
9348 int err, i;
9349 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9350 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9351 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9352 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9353
9354 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9355 nla_len(rule), nl80211_coalesce_policy);
9356 if (err)
9357 return err;
9358
9359 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9360 new_rule->delay =
9361 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9362 if (new_rule->delay > coalesce->max_delay)
9363 return -EINVAL;
9364
9365 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9366 new_rule->condition =
9367 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9368 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9369 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9370 return -EINVAL;
9371
9372 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9373 return -EINVAL;
9374
9375 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9376 rem)
9377 n_patterns++;
9378 if (n_patterns > coalesce->n_patterns)
9379 return -EINVAL;
9380
9381 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9382 GFP_KERNEL);
9383 if (!new_rule->patterns)
9384 return -ENOMEM;
9385
9386 new_rule->n_patterns = n_patterns;
9387 i = 0;
9388
9389 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9390 rem) {
922bd80f
JB		 9391 u8 *mask_pat;
9392
be29b99a
AK		 9393 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9394 nla_len(pat), NULL);
9395 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9396 !pat_tb[NL80211_PKTPAT_PATTERN])
9397 return -EINVAL;
9398 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9399 mask_len = DIV_ROUND_UP(pat_len, 8);
9400 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9401 return -EINVAL;
9402 if (pat_len > coalesce->pattern_max_len ||
9403 pat_len < coalesce->pattern_min_len)
9404 return -EINVAL;
9405
9406 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9407 pkt_offset = 0;
9408 else
9409 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9410 if (pkt_offset > coalesce->max_pkt_offset)
9411 return -EINVAL;
9412 new_rule->patterns[i].pkt_offset = pkt_offset;
9413
922bd80f
JB		 9414 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9415 if (!mask_pat)
be29b99a 9416 return -ENOMEM;
922bd80f
JB		 9417
9418 new_rule->patterns[i].mask = mask_pat;
9419 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9420 mask_len);
9421
9422 mask_pat += mask_len;
9423 new_rule->patterns[i].pattern = mask_pat;
be29b99a 9424 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 9425 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9426 pat_len);
be29b99a
AK		 9427 i++;
9428 }
9429
9430 return 0;
9431}
9432
9433static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9434{
9435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9436 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9437 struct cfg80211_coalesce new_coalesce = {};
9438 struct cfg80211_coalesce *n_coalesce;
9439 int err, rem_rule, n_rules = 0, i, j;
9440 struct nlattr *rule;
9441 struct cfg80211_coalesce_rules *tmp_rule;
9442
9443 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9444 return -EOPNOTSUPP;
9445
9446 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9447 cfg80211_rdev_free_coalesce(rdev);
9448 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9449 return 0;
9450 }
9451
9452 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9453 rem_rule)
9454 n_rules++;
9455 if (n_rules > coalesce->n_rules)
9456 return -EINVAL;
9457
9458 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9459 GFP_KERNEL);
9460 if (!new_coalesce.rules)
9461 return -ENOMEM;
9462
9463 new_coalesce.n_rules = n_rules;
9464 i = 0;
9465
9466 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9467 rem_rule) {
9468 err = nl80211_parse_coalesce_rule(rdev, rule,
9469 &new_coalesce.rules[i]);
9470 if (err)
9471 goto error;
9472
9473 i++;
9474 }
9475
9476 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9477 if (err)
9478 goto error;
9479
9480 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9481 if (!n_coalesce) {
9482 err = -ENOMEM;
9483 goto error;
9484 }
9485 cfg80211_rdev_free_coalesce(rdev);
9486 rdev->coalesce = n_coalesce;
9487
9488 return 0;
9489error:
9490 for (i = 0; i < new_coalesce.n_rules; i++) {
9491 tmp_rule = &new_coalesce.rules[i];
9492 for (j = 0; j < tmp_rule->n_patterns; j++)
9493 kfree(tmp_rule->patterns[j].mask);
9494 kfree(tmp_rule->patterns);
9495 }
9496 kfree(new_coalesce.rules);
9497
9498 return err;
9499}
9500
e5497d76
JB		 9501static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9502{
9503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9504 struct net_device *dev = info->user_ptr[1];
9505 struct wireless_dev *wdev = dev->ieee80211_ptr;
9506 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9507 struct cfg80211_gtk_rekey_data rekey_data;
9508 int err;
9509
9510 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9511 return -EINVAL;
9512
9513 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9514 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9515 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9516 nl80211_rekey_policy);
9517 if (err)
9518 return err;
9519
9520 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9521 return -ERANGE;
9522 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9523 return -ERANGE;
9524 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9525 return -ERANGE;
9526
78f686ca
JB		 9527 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9528 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9529 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9530
9531 wdev_lock(wdev);
9532 if (!wdev->current_bss) {
9533 err = -ENOTCONN;
9534 goto out;
9535 }
9536
9537 if (!rdev->ops->set_rekey_data) {
9538 err = -EOPNOTSUPP;
9539 goto out;
9540 }
9541
e35e4d28 9542 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9543 out:
9544 wdev_unlock(wdev);
9545 return err;
9546}
9547
28946da7
JB		 9548static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9549 struct genl_info *info)
9550{
9551 struct net_device *dev = info->user_ptr[1];
9552 struct wireless_dev *wdev = dev->ieee80211_ptr;
9553
9554 if (wdev->iftype != NL80211_IFTYPE_AP &&
9555 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9556 return -EINVAL;
9557
15e47304 9558 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9559 return -EBUSY;
9560
15e47304 9561 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9562 return 0;
9563}
9564
7f6cf311
JB		 9565static int nl80211_probe_client(struct sk_buff *skb,
9566 struct genl_info *info)
9567{
9568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9569 struct net_device *dev = info->user_ptr[1];
9570 struct wireless_dev *wdev = dev->ieee80211_ptr;
9571 struct sk_buff *msg;
9572 void *hdr;
9573 const u8 *addr;
9574 u64 cookie;
9575 int err;
9576
9577 if (wdev->iftype != NL80211_IFTYPE_AP &&
9578 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9579 return -EOPNOTSUPP;
9580
9581 if (!info->attrs[NL80211_ATTR_MAC])
9582 return -EINVAL;
9583
9584 if (!rdev->ops->probe_client)
9585 return -EOPNOTSUPP;
9586
9587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9588 if (!msg)
9589 return -ENOMEM;
9590
15e47304 9591 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9592 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9593 if (!hdr) {
9594 err = -ENOBUFS;
7f6cf311
JB		 9595 goto free_msg;
9596 }
9597
9598 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9599
e35e4d28 9600 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9601 if (err)
9602 goto free_msg;
9603
9360ffd1
DM		 9604 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9605 goto nla_put_failure;
7f6cf311
JB		 9606
9607 genlmsg_end(msg, hdr);
9608
9609 return genlmsg_reply(msg, info);
9610
9611 nla_put_failure:
9612 err = -ENOBUFS;
9613 free_msg:
9614 nlmsg_free(msg);
9615 return err;
9616}
9617
5e760230
JB		 9618static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9619{
9620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9621 struct cfg80211_beacon_registration *reg, *nreg;
9622 int rv;
5e760230
JB		 9623
9624 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9625 return -EOPNOTSUPP;
9626
37c73b5f
BG		 9627 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9628 if (!nreg)
9629 return -ENOMEM;
9630
9631 /* First, check if already registered. */
9632 spin_lock_bh(&rdev->beacon_registrations_lock);
9633 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9634 if (reg->nlportid == info->snd_portid) {
9635 rv = -EALREADY;
9636 goto out_err;
9637 }
9638 }
9639 /* Add it to the list */
9640 nreg->nlportid = info->snd_portid;
9641 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9642
37c73b5f 9643 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9644
9645 return 0;
37c73b5f
BG		 9646out_err:
9647 spin_unlock_bh(&rdev->beacon_registrations_lock);
9648 kfree(nreg);
9649 return rv;
5e760230
JB		 9650}
9651
98104fde
JB		 9652static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9653{
9654 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9655 struct wireless_dev *wdev = info->user_ptr[1];
9656 int err;
9657
9658 if (!rdev->ops->start_p2p_device)
9659 return -EOPNOTSUPP;
9660
9661 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9662 return -EOPNOTSUPP;
9663
9664 if (wdev->p2p_started)
9665 return 0;
9666
b6a55015
LC		 9667 if (rfkill_blocked(rdev->rfkill))
9668 return -ERFKILL;
98104fde 9669
eeb126e9 9670 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9671 if (err)
9672 return err;
9673
9674 wdev->p2p_started = true;
98104fde 9675 rdev->opencount++;
98104fde
JB		 9676
9677 return 0;
9678}
9679
9680static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9681{
9682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9683 struct wireless_dev *wdev = info->user_ptr[1];
9684
9685 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9686 return -EOPNOTSUPP;
9687
9688 if (!rdev->ops->stop_p2p_device)
9689 return -EOPNOTSUPP;
9690
f9f47529 9691 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9692
9693 return 0;
9694}
9695
3713b4e3
JB		 9696static int nl80211_get_protocol_features(struct sk_buff *skb,
9697 struct genl_info *info)
9698{
9699 void *hdr;
9700 struct sk_buff *msg;
9701
9702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9703 if (!msg)
9704 return -ENOMEM;
9705
9706 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9707 NL80211_CMD_GET_PROTOCOL_FEATURES);
9708 if (!hdr)
9709 goto nla_put_failure;
9710
9711 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9712 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9713 goto nla_put_failure;
9714
9715 genlmsg_end(msg, hdr);
9716 return genlmsg_reply(msg, info);
9717
9718 nla_put_failure:
9719 kfree_skb(msg);
9720 return -ENOBUFS;
9721}
9722
355199e0
JM		 9723static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9724{
9725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9726 struct cfg80211_update_ft_ies_params ft_params;
9727 struct net_device *dev = info->user_ptr[1];
9728
9729 if (!rdev->ops->update_ft_ies)
9730 return -EOPNOTSUPP;
9731
9732 if (!info->attrs[NL80211_ATTR_MDID] ||
9733 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9734 return -EINVAL;
9735
9736 memset(&ft_params, 0, sizeof(ft_params));
9737 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9738 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9739 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9740
9741 return rdev_update_ft_ies(rdev, dev, &ft_params);
9742}
9743
5de17984
AS		 9744static int nl80211_crit_protocol_start(struct sk_buff *skb,
9745 struct genl_info *info)
9746{
9747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9748 struct wireless_dev *wdev = info->user_ptr[1];
9749 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9750 u16 duration;
9751 int ret;
9752
9753 if (!rdev->ops->crit_proto_start)
9754 return -EOPNOTSUPP;
9755
9756 if (WARN_ON(!rdev->ops->crit_proto_stop))
9757 return -EINVAL;
9758
9759 if (rdev->crit_proto_nlportid)
9760 return -EBUSY;
9761
9762 /* determine protocol if provided */
9763 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9764 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9765
9766 if (proto >= NUM_NL80211_CRIT_PROTO)
9767 return -EINVAL;
9768
9769 /* timeout must be provided */
9770 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9771 return -EINVAL;
9772
9773 duration =
9774 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9775
9776 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9777 return -ERANGE;
9778
9779 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9780 if (!ret)
9781 rdev->crit_proto_nlportid = info->snd_portid;
9782
9783 return ret;
9784}
9785
9786static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9787 struct genl_info *info)
9788{
9789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9790 struct wireless_dev *wdev = info->user_ptr[1];
9791
9792 if (!rdev->ops->crit_proto_stop)
9793 return -EOPNOTSUPP;
9794
9795 if (rdev->crit_proto_nlportid) {
9796 rdev->crit_proto_nlportid = 0;
9797 rdev_crit_proto_stop(rdev, wdev);
9798 }
9799 return 0;
9800}
9801
ad7e718c
JB		 9802static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9803{
9804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9805 struct wireless_dev *wdev =
9806 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9807 int i, err;
9808 u32 vid, subcmd;
9809
9810 if (!rdev->wiphy.vendor_commands)
9811 return -EOPNOTSUPP;
9812
9813 if (IS_ERR(wdev)) {
9814 err = PTR_ERR(wdev);
9815 if (err != -EINVAL)
9816 return err;
9817 wdev = NULL;
9818 } else if (wdev->wiphy != &rdev->wiphy) {
9819 return -EINVAL;
9820 }
9821
9822 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9823 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9824 return -EINVAL;
9825
9826 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9827 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9828 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9829 const struct wiphy_vendor_command *vcmd;
9830 void *data = NULL;
9831 int len = 0;
9832
9833 vcmd = &rdev->wiphy.vendor_commands[i];
9834
9835 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9836 continue;
9837
9838 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9839 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9840 if (!wdev)
9841 return -EINVAL;
9842 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9843 !wdev->netdev)
9844 return -EINVAL;
9845
9846 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9847 if (wdev->netdev &&
9848 !netif_running(wdev->netdev))
9849 return -ENETDOWN;
9850 if (!wdev->netdev && !wdev->p2p_started)
9851 return -ENETDOWN;
9852 }
9853 } else {
9854 wdev = NULL;
9855 }
9856
9857 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9858 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9859 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9860 }
9861
9862 rdev->cur_cmd_info = info;
9863 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9864 data, len);
9865 rdev->cur_cmd_info = NULL;
9866 return err;
9867 }
9868
9869 return -EOPNOTSUPP;
9870}
9871
9872struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9873 enum nl80211_commands cmd,
9874 enum nl80211_attrs attr,
9875 int approxlen)
9876{
f26cbf40 9877 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9878
9879 if (WARN_ON(!rdev->cur_cmd_info))
9880 return NULL;
9881
9882 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9883 rdev->cur_cmd_info->snd_portid,
9884 rdev->cur_cmd_info->snd_seq,
567ffc35 9885 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9886}
9887EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9888
9889int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9890{
9891 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9892 void *hdr = ((void **)skb->cb)[1];
9893 struct nlattr *data = ((void **)skb->cb)[2];
9894
bd8c78e7
JB		 9895 /* clear CB data for netlink core to own from now on */
9896 memset(skb->cb, 0, sizeof(skb->cb));
9897
ad7e718c
JB		 9898 if (WARN_ON(!rdev->cur_cmd_info)) {
9899 kfree_skb(skb);
9900 return -EINVAL;
9901 }
9902
9903 nla_nest_end(skb, data);
9904 genlmsg_end(skb, hdr);
9905 return genlmsg_reply(skb, rdev->cur_cmd_info);
9906}
9907EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9908
9909
fa9ffc74
KP		 9910static int nl80211_set_qos_map(struct sk_buff *skb,
9911 struct genl_info *info)
9912{
9913 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9914 struct cfg80211_qos_map *qos_map = NULL;
9915 struct net_device *dev = info->user_ptr[1];
9916 u8 *pos, len, num_des, des_len, des;
9917 int ret;
9918
9919 if (!rdev->ops->set_qos_map)
9920 return -EOPNOTSUPP;
9921
9922 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9923 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9924 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9925
9926 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9927 len > IEEE80211_QOS_MAP_LEN_MAX)
9928 return -EINVAL;
9929
9930 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9931 if (!qos_map)
9932 return -ENOMEM;
9933
9934 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9935 if (num_des) {
9936 des_len = num_des *
9937 sizeof(struct cfg80211_dscp_exception);
9938 memcpy(qos_map->dscp_exception, pos, des_len);
9939 qos_map->num_des = num_des;
9940 for (des = 0; des < num_des; des++) {
9941 if (qos_map->dscp_exception[des].up > 7) {
9942 kfree(qos_map);
9943 return -EINVAL;
9944 }
9945 }
9946 pos += des_len;
9947 }
9948 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9949 }
9950
9951 wdev_lock(dev->ieee80211_ptr);
9952 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9953 if (!ret)
9954 ret = rdev_set_qos_map(rdev, dev, qos_map);
9955 wdev_unlock(dev->ieee80211_ptr);
9956
9957 kfree(qos_map);
9958 return ret;
9959}
9960
960d01ac
JB		 9961static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9962{
9963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9964 struct net_device *dev = info->user_ptr[1];
9965 struct wireless_dev *wdev = dev->ieee80211_ptr;
9966 const u8 *peer;
9967 u8 tsid, up;
9968 u16 admitted_time = 0;
9969 int err;
9970
723e73ac 9971 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
960d01ac
JB		 9972 return -EOPNOTSUPP;
9973
9974 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9975 !info->attrs[NL80211_ATTR_USER_PRIO])
9976 return -EINVAL;
9977
9978 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9979 if (tsid >= IEEE80211_NUM_TIDS)
9980 return -EINVAL;
9981
9982 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9983 if (up >= IEEE80211_NUM_UPS)
9984 return -EINVAL;
9985
9986 /* WMM uses TIDs 0-7 even for TSPEC */
723e73ac 9987 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
960d01ac 9988 /* TODO: handle 802.11 TSPEC/admission control
723e73ac
JB		 9989 * need more attributes for that (e.g. BA session requirement);
9990 * change the WMM adminssion test above to allow both then
960d01ac
JB		 9991 */
9992 return -EINVAL;
9993 }
9994
9995 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9996
9997 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9998 admitted_time =
9999 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10000 if (!admitted_time)
10001 return -EINVAL;
10002 }
10003
10004 wdev_lock(wdev);
10005 switch (wdev->iftype) {
10006 case NL80211_IFTYPE_STATION:
10007 case NL80211_IFTYPE_P2P_CLIENT:
10008 if (wdev->current_bss)
10009 break;
10010 err = -ENOTCONN;
10011 goto out;
10012 default:
10013 err = -EOPNOTSUPP;
10014 goto out;
10015 }
10016
10017 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10018
10019 out:
10020 wdev_unlock(wdev);
10021 return err;
10022}
10023
10024static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10025{
10026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10027 struct net_device *dev = info->user_ptr[1];
10028 struct wireless_dev *wdev = dev->ieee80211_ptr;
10029 const u8 *peer;
10030 u8 tsid;
10031 int err;
10032
10033 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10034 return -EINVAL;
10035
10036 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10037 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10038
10039 wdev_lock(wdev);
10040 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10041 wdev_unlock(wdev);
10042
10043 return err;
10044}
10045
1057d35e
AN		 10046static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10047 struct genl_info *info)
10048{
10049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10050 struct net_device *dev = info->user_ptr[1];
10051 struct wireless_dev *wdev = dev->ieee80211_ptr;
10052 struct cfg80211_chan_def chandef = {};
10053 const u8 *addr;
10054 u8 oper_class;
10055 int err;
10056
10057 if (!rdev->ops->tdls_channel_switch ||
10058 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10059 return -EOPNOTSUPP;
10060
10061 switch (dev->ieee80211_ptr->iftype) {
10062 case NL80211_IFTYPE_STATION:
10063 case NL80211_IFTYPE_P2P_CLIENT:
10064 break;
10065 default:
10066 return -EOPNOTSUPP;
10067 }
10068
10069 if (!info->attrs[NL80211_ATTR_MAC] ||
10070 !info->attrs[NL80211_ATTR_OPER_CLASS])
10071 return -EINVAL;
10072
10073 err = nl80211_parse_chandef(rdev, info, &chandef);
10074 if (err)
10075 return err;
10076
10077 /*
10078 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10079 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10080 * specification is not defined for them.
10081 */
10082 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10083 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10084 chandef.width != NL80211_CHAN_WIDTH_20)
10085 return -EINVAL;
10086
10087 /* we will be active on the TDLS link */
10088 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
10089 return -EINVAL;
10090
10091 /* don't allow switching to DFS channels */
10092 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10093 return -EINVAL;
10094
10095 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10096 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10097
10098 wdev_lock(wdev);
10099 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10100 wdev_unlock(wdev);
10101
10102 return err;
10103}
10104
10105static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10106 struct genl_info *info)
10107{
10108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10109 struct net_device *dev = info->user_ptr[1];
10110 struct wireless_dev *wdev = dev->ieee80211_ptr;
10111 const u8 *addr;
10112
10113 if (!rdev->ops->tdls_channel_switch ||
10114 !rdev->ops->tdls_cancel_channel_switch ||
10115 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10116 return -EOPNOTSUPP;
10117
10118 switch (dev->ieee80211_ptr->iftype) {
10119 case NL80211_IFTYPE_STATION:
10120 case NL80211_IFTYPE_P2P_CLIENT:
10121 break;
10122 default:
10123 return -EOPNOTSUPP;
10124 }
10125
10126 if (!info->attrs[NL80211_ATTR_MAC])
10127 return -EINVAL;
10128
10129 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10130
10131 wdev_lock(wdev);
10132 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10133 wdev_unlock(wdev);
10134
10135 return 0;
10136}
10137
4c476991
JB		 10138#define NL80211_FLAG_NEED_WIPHY 0x01
10139#define NL80211_FLAG_NEED_NETDEV 0x02
10140#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 10141#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10142#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10143 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 10144#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 10145/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 10146#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10147 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 10148#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 10149
f84f771d 10150static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10151 struct genl_info *info)
10152{
10153 struct cfg80211_registered_device *rdev;
89a54e48 10154 struct wireless_dev *wdev;
4c476991 10155 struct net_device *dev;
4c476991
JB		 10156 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10157
10158 if (rtnl)
10159 rtnl_lock();
10160
10161 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 10162 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 10163 if (IS_ERR(rdev)) {
10164 if (rtnl)
10165 rtnl_unlock();
10166 return PTR_ERR(rdev);
10167 }
10168 info->user_ptr[0] = rdev;
1bf614ef
JB		 10169 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10170 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 10171 ASSERT_RTNL();
10172
89a54e48
JB		 10173 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10174 info->attrs);
10175 if (IS_ERR(wdev)) {
4c476991
JB		 10176 if (rtnl)
10177 rtnl_unlock();
89a54e48 10178 return PTR_ERR(wdev);
4c476991 10179 }
89a54e48 10180
89a54e48 10181 dev = wdev->netdev;
f26cbf40 10182 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 10183
1bf614ef
JB		 10184 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10185 if (!dev) {
1bf614ef
JB		 10186 if (rtnl)
10187 rtnl_unlock();
10188 return -EINVAL;
10189 }
10190
10191 info->user_ptr[1] = dev;
10192 } else {
10193 info->user_ptr[1] = wdev;
41265714 10194 }
1bf614ef
JB		 10195
10196 if (dev) {
10197 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10198 !netif_running(dev)) {
1bf614ef
JB		 10199 if (rtnl)
10200 rtnl_unlock();
10201 return -ENETDOWN;
10202 }
10203
10204 dev_hold(dev);
98104fde
JB		 10205 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10206 if (!wdev->p2p_started) {
98104fde
JB		 10207 if (rtnl)
10208 rtnl_unlock();
10209 return -ENETDOWN;
10210 }
41265714 10211 }
89a54e48 10212
4c476991 10213 info->user_ptr[0] = rdev;
4c476991
JB		 10214 }
10215
10216 return 0;
10217}
10218
f84f771d 10219static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 10220 struct genl_info *info)
10221{
1bf614ef
JB		 10222 if (info->user_ptr[1]) {
10223 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10224 struct wireless_dev *wdev = info->user_ptr[1];
10225
10226 if (wdev->netdev)
10227 dev_put(wdev->netdev);
10228 } else {
10229 dev_put(info->user_ptr[1]);
10230 }
10231 }
5393b917 10232
4c476991
JB		 10233 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10234 rtnl_unlock();
5393b917
JB		 10235
10236 /* If needed, clear the netlink message payload from the SKB
10237 * as it might contain key data that shouldn't stick around on
10238 * the heap after the SKB is freed. The netlink message header
10239 * is still needed for further processing, so leave it intact.
10240 */
10241 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10242 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10243
10244 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10245 }
4c476991
JB		 10246}
10247
4534de83 10248static const struct genl_ops nl80211_ops[] = {
55682965
JB		 10249 {
10250 .cmd = NL80211_CMD_GET_WIPHY,
10251 .doit = nl80211_get_wiphy,
10252 .dumpit = nl80211_dump_wiphy,
86e8cf98 10253 .done = nl80211_dump_wiphy_done,
55682965
JB		 10254 .policy = nl80211_policy,
10255 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10256 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10257 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10258 },
10259 {
10260 .cmd = NL80211_CMD_SET_WIPHY,
10261 .doit = nl80211_set_wiphy,
10262 .policy = nl80211_policy,
10263 .flags = GENL_ADMIN_PERM,
4c476991 10264 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 10265 },
10266 {
10267 .cmd = NL80211_CMD_GET_INTERFACE,
10268 .doit = nl80211_get_interface,
10269 .dumpit = nl80211_dump_interface,
10270 .policy = nl80211_policy,
10271 /* can be retrieved by unprivileged users */
5fe231e8
JB		 10272 .internal_flags = NL80211_FLAG_NEED_WDEV |
10273 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10274 },
10275 {
10276 .cmd = NL80211_CMD_SET_INTERFACE,
10277 .doit = nl80211_set_interface,
10278 .policy = nl80211_policy,
10279 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10280 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10281 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10282 },
10283 {
10284 .cmd = NL80211_CMD_NEW_INTERFACE,
10285 .doit = nl80211_new_interface,
10286 .policy = nl80211_policy,
10287 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10288 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10289 NL80211_FLAG_NEED_RTNL,
55682965
JB		 10290 },
10291 {
10292 .cmd = NL80211_CMD_DEL_INTERFACE,
10293 .doit = nl80211_del_interface,
10294 .policy = nl80211_policy,
41ade00f 10295 .flags = GENL_ADMIN_PERM,
84efbb84 10296 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10297 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10298 },
10299 {
10300 .cmd = NL80211_CMD_GET_KEY,
10301 .doit = nl80211_get_key,
10302 .policy = nl80211_policy,
10303 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10305 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 10306 },
10307 {
10308 .cmd = NL80211_CMD_SET_KEY,
10309 .doit = nl80211_set_key,
10310 .policy = nl80211_policy,
10311 .flags = GENL_ADMIN_PERM,
41265714 10312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10313 NL80211_FLAG_NEED_RTNL |
10314 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10315 },
10316 {
10317 .cmd = NL80211_CMD_NEW_KEY,
10318 .doit = nl80211_new_key,
10319 .policy = nl80211_policy,
10320 .flags = GENL_ADMIN_PERM,
41265714 10321 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10322 NL80211_FLAG_NEED_RTNL |
10323 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 10324 },
10325 {
10326 .cmd = NL80211_CMD_DEL_KEY,
10327 .doit = nl80211_del_key,
10328 .policy = nl80211_policy,
55682965 10329 .flags = GENL_ADMIN_PERM,
41265714 10330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10331 NL80211_FLAG_NEED_RTNL,
55682965 10332 },
ed1b6cc7
JB		 10333 {
10334 .cmd = NL80211_CMD_SET_BEACON,
10335 .policy = nl80211_policy,
10336 .flags = GENL_ADMIN_PERM,
8860020e 10337 .doit = nl80211_set_beacon,
2b5f8b0b 10338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10339 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10340 },
10341 {
8860020e 10342 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 10343 .policy = nl80211_policy,
10344 .flags = GENL_ADMIN_PERM,
8860020e 10345 .doit = nl80211_start_ap,
2b5f8b0b 10346 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10347 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 10348 },
10349 {
8860020e 10350 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 10351 .policy = nl80211_policy,
10352 .flags = GENL_ADMIN_PERM,
8860020e 10353 .doit = nl80211_stop_ap,
2b5f8b0b 10354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10355 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 10356 },
5727ef1b
JB		 10357 {
10358 .cmd = NL80211_CMD_GET_STATION,
10359 .doit = nl80211_get_station,
2ec600d6 10360 .dumpit = nl80211_dump_station,
5727ef1b 10361 .policy = nl80211_policy,
4c476991
JB		 10362 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10363 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10364 },
10365 {
10366 .cmd = NL80211_CMD_SET_STATION,
10367 .doit = nl80211_set_station,
10368 .policy = nl80211_policy,
10369 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10371 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10372 },
10373 {
10374 .cmd = NL80211_CMD_NEW_STATION,
10375 .doit = nl80211_new_station,
10376 .policy = nl80211_policy,
10377 .flags = GENL_ADMIN_PERM,
41265714 10378 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10379 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 10380 },
10381 {
10382 .cmd = NL80211_CMD_DEL_STATION,
10383 .doit = nl80211_del_station,
10384 .policy = nl80211_policy,
2ec600d6 10385 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10387 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10388 },
10389 {
10390 .cmd = NL80211_CMD_GET_MPATH,
10391 .doit = nl80211_get_mpath,
10392 .dumpit = nl80211_dump_mpath,
10393 .policy = nl80211_policy,
10394 .flags = GENL_ADMIN_PERM,
41265714 10395 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10396 NL80211_FLAG_NEED_RTNL,
2ec600d6 10397 },
66be7d2b
HR		 10398 {
10399 .cmd = NL80211_CMD_GET_MPP,
10400 .doit = nl80211_get_mpp,
10401 .dumpit = nl80211_dump_mpp,
10402 .policy = nl80211_policy,
10403 .flags = GENL_ADMIN_PERM,
10404 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10405 NL80211_FLAG_NEED_RTNL,
10406 },
2ec600d6
LCC		 10407 {
10408 .cmd = NL80211_CMD_SET_MPATH,
10409 .doit = nl80211_set_mpath,
10410 .policy = nl80211_policy,
10411 .flags = GENL_ADMIN_PERM,
41265714 10412 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10413 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10414 },
10415 {
10416 .cmd = NL80211_CMD_NEW_MPATH,
10417 .doit = nl80211_new_mpath,
10418 .policy = nl80211_policy,
10419 .flags = GENL_ADMIN_PERM,
41265714 10420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10421 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 10422 },
10423 {
10424 .cmd = NL80211_CMD_DEL_MPATH,
10425 .doit = nl80211_del_mpath,
10426 .policy = nl80211_policy,
9f1ba906 10427 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10428 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10429 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 10430 },
10431 {
10432 .cmd = NL80211_CMD_SET_BSS,
10433 .doit = nl80211_set_bss,
10434 .policy = nl80211_policy,
b2e1b302 10435 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10436 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10437 NL80211_FLAG_NEED_RTNL,
b2e1b302 10438 },
f130347c
LR		 10439 {
10440 .cmd = NL80211_CMD_GET_REG,
ad30ca2c
AN		 10441 .doit = nl80211_get_reg_do,
10442 .dumpit = nl80211_get_reg_dump,
f130347c 10443 .policy = nl80211_policy,
5fe231e8 10444 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 10445 /* can be retrieved by unprivileged users */
10446 },
b2e1b302
LR		 10447 {
10448 .cmd = NL80211_CMD_SET_REG,
10449 .doit = nl80211_set_reg,
10450 .policy = nl80211_policy,
10451 .flags = GENL_ADMIN_PERM,
5fe231e8 10452 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 10453 },
10454 {
10455 .cmd = NL80211_CMD_REQ_SET_REG,
10456 .doit = nl80211_req_set_reg,
10457 .policy = nl80211_policy,
93da9cc1 10458 .flags = GENL_ADMIN_PERM,
10459 },
10460 {
24bdd9f4
JC		 10461 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10462 .doit = nl80211_get_mesh_config,
93da9cc1 10463 .policy = nl80211_policy,
10464 /* can be retrieved by unprivileged users */
2b5f8b0b 10465 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10466 NL80211_FLAG_NEED_RTNL,
93da9cc1 10467 },
10468 {
24bdd9f4
JC		 10469 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10470 .doit = nl80211_update_mesh_config,
93da9cc1 10471 .policy = nl80211_policy,
9aed3cc1 10472 .flags = GENL_ADMIN_PERM,
29cbe68c 10473 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10474 NL80211_FLAG_NEED_RTNL,
9aed3cc1 10475 },
2a519311
JB		 10476 {
10477 .cmd = NL80211_CMD_TRIGGER_SCAN,
10478 .doit = nl80211_trigger_scan,
10479 .policy = nl80211_policy,
10480 .flags = GENL_ADMIN_PERM,
fd014284 10481 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10482 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 10483 },
10484 {
10485 .cmd = NL80211_CMD_GET_SCAN,
10486 .policy = nl80211_policy,
10487 .dumpit = nl80211_dump_scan,
10488 },
807f8a8c
LC		 10489 {
10490 .cmd = NL80211_CMD_START_SCHED_SCAN,
10491 .doit = nl80211_start_sched_scan,
10492 .policy = nl80211_policy,
10493 .flags = GENL_ADMIN_PERM,
10494 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10495 NL80211_FLAG_NEED_RTNL,
10496 },
10497 {
10498 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10499 .doit = nl80211_stop_sched_scan,
10500 .policy = nl80211_policy,
10501 .flags = GENL_ADMIN_PERM,
10502 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10503 NL80211_FLAG_NEED_RTNL,
10504 },
636a5d36
JM		 10505 {
10506 .cmd = NL80211_CMD_AUTHENTICATE,
10507 .doit = nl80211_authenticate,
10508 .policy = nl80211_policy,
10509 .flags = GENL_ADMIN_PERM,
41265714 10510 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10511 NL80211_FLAG_NEED_RTNL |
10512 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 10513 },
10514 {
10515 .cmd = NL80211_CMD_ASSOCIATE,
10516 .doit = nl80211_associate,
10517 .policy = nl80211_policy,
10518 .flags = GENL_ADMIN_PERM,
41265714 10519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10520 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10521 },
10522 {
10523 .cmd = NL80211_CMD_DEAUTHENTICATE,
10524 .doit = nl80211_deauthenticate,
10525 .policy = nl80211_policy,
10526 .flags = GENL_ADMIN_PERM,
41265714 10527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10528 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 10529 },
10530 {
10531 .cmd = NL80211_CMD_DISASSOCIATE,
10532 .doit = nl80211_disassociate,
10533 .policy = nl80211_policy,
10534 .flags = GENL_ADMIN_PERM,
41265714 10535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10536 NL80211_FLAG_NEED_RTNL,
636a5d36 10537 },
04a773ad
JB		 10538 {
10539 .cmd = NL80211_CMD_JOIN_IBSS,
10540 .doit = nl80211_join_ibss,
10541 .policy = nl80211_policy,
10542 .flags = GENL_ADMIN_PERM,
41265714 10543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10544 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10545 },
10546 {
10547 .cmd = NL80211_CMD_LEAVE_IBSS,
10548 .doit = nl80211_leave_ibss,
10549 .policy = nl80211_policy,
10550 .flags = GENL_ADMIN_PERM,
41265714 10551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10552 NL80211_FLAG_NEED_RTNL,
04a773ad 10553 },
aff89a9b
JB		 10554#ifdef CONFIG_NL80211_TESTMODE
10555 {
10556 .cmd = NL80211_CMD_TESTMODE,
10557 .doit = nl80211_testmode_do,
71063f0e 10558 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10559 .policy = nl80211_policy,
10560 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10561 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10562 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10563 },
10564#endif
b23aa676
SO		 10565 {
10566 .cmd = NL80211_CMD_CONNECT,
10567 .doit = nl80211_connect,
10568 .policy = nl80211_policy,
10569 .flags = GENL_ADMIN_PERM,
41265714 10570 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10571 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10572 },
10573 {
10574 .cmd = NL80211_CMD_DISCONNECT,
10575 .doit = nl80211_disconnect,
10576 .policy = nl80211_policy,
10577 .flags = GENL_ADMIN_PERM,
41265714 10578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10579 NL80211_FLAG_NEED_RTNL,
b23aa676 10580 },
463d0183
JB		 10581 {
10582 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10583 .doit = nl80211_wiphy_netns,
10584 .policy = nl80211_policy,
10585 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10586 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10587 NL80211_FLAG_NEED_RTNL,
463d0183 10588 },
61fa713c
HS		 10589 {
10590 .cmd = NL80211_CMD_GET_SURVEY,
10591 .policy = nl80211_policy,
10592 .dumpit = nl80211_dump_survey,
10593 },
67fbb16b
SO		 10594 {
10595 .cmd = NL80211_CMD_SET_PMKSA,
10596 .doit = nl80211_setdel_pmksa,
10597 .policy = nl80211_policy,
10598 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10600 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10601 },
10602 {
10603 .cmd = NL80211_CMD_DEL_PMKSA,
10604 .doit = nl80211_setdel_pmksa,
10605 .policy = nl80211_policy,
10606 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10608 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10609 },
10610 {
10611 .cmd = NL80211_CMD_FLUSH_PMKSA,
10612 .doit = nl80211_flush_pmksa,
10613 .policy = nl80211_policy,
10614 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10616 NL80211_FLAG_NEED_RTNL,
67fbb16b 10617 },
9588bbd5
JM		 10618 {
10619 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10620 .doit = nl80211_remain_on_channel,
10621 .policy = nl80211_policy,
10622 .flags = GENL_ADMIN_PERM,
71bbc994 10623 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10624 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10625 },
10626 {
10627 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10628 .doit = nl80211_cancel_remain_on_channel,
10629 .policy = nl80211_policy,
10630 .flags = GENL_ADMIN_PERM,
71bbc994 10631 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10632 NL80211_FLAG_NEED_RTNL,
9588bbd5 10633 },
13ae75b1
JM		 10634 {
10635 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10636 .doit = nl80211_set_tx_bitrate_mask,
10637 .policy = nl80211_policy,
10638 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10639 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10640 NL80211_FLAG_NEED_RTNL,
13ae75b1 10641 },
026331c4 10642 {
2e161f78
JB		 10643 .cmd = NL80211_CMD_REGISTER_FRAME,
10644 .doit = nl80211_register_mgmt,
026331c4
JM		 10645 .policy = nl80211_policy,
10646 .flags = GENL_ADMIN_PERM,
71bbc994 10647 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10648 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10649 },
10650 {
2e161f78
JB		 10651 .cmd = NL80211_CMD_FRAME,
10652 .doit = nl80211_tx_mgmt,
026331c4 10653 .policy = nl80211_policy,
f7ca38df 10654 .flags = GENL_ADMIN_PERM,
71bbc994 10655 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10656 NL80211_FLAG_NEED_RTNL,
10657 },
10658 {
10659 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10660 .doit = nl80211_tx_mgmt_cancel_wait,
10661 .policy = nl80211_policy,
026331c4 10662 .flags = GENL_ADMIN_PERM,
71bbc994 10663 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10664 NL80211_FLAG_NEED_RTNL,
026331c4 10665 },
ffb9eb3d
KV		 10666 {
10667 .cmd = NL80211_CMD_SET_POWER_SAVE,
10668 .doit = nl80211_set_power_save,
10669 .policy = nl80211_policy,
10670 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10671 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10672 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10673 },
10674 {
10675 .cmd = NL80211_CMD_GET_POWER_SAVE,
10676 .doit = nl80211_get_power_save,
10677 .policy = nl80211_policy,
10678 /* can be retrieved by unprivileged users */
4c476991
JB		 10679 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10680 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10681 },
d6dc1a38
JO		 10682 {
10683 .cmd = NL80211_CMD_SET_CQM,
10684 .doit = nl80211_set_cqm,
10685 .policy = nl80211_policy,
10686 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10687 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10688 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10689 },
f444de05
JB		 10690 {
10691 .cmd = NL80211_CMD_SET_CHANNEL,
10692 .doit = nl80211_set_channel,
10693 .policy = nl80211_policy,
10694 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10695 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10696 NL80211_FLAG_NEED_RTNL,
f444de05 10697 },
e8347eba
BJ		 10698 {
10699 .cmd = NL80211_CMD_SET_WDS_PEER,
10700 .doit = nl80211_set_wds_peer,
10701 .policy = nl80211_policy,
10702 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10703 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10704 NL80211_FLAG_NEED_RTNL,
e8347eba 10705 },
29cbe68c
JB		 10706 {
10707 .cmd = NL80211_CMD_JOIN_MESH,
10708 .doit = nl80211_join_mesh,
10709 .policy = nl80211_policy,
10710 .flags = GENL_ADMIN_PERM,
10711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10712 NL80211_FLAG_NEED_RTNL,
10713 },
10714 {
10715 .cmd = NL80211_CMD_LEAVE_MESH,
10716 .doit = nl80211_leave_mesh,
10717 .policy = nl80211_policy,
10718 .flags = GENL_ADMIN_PERM,
10719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10720 NL80211_FLAG_NEED_RTNL,
10721 },
6e0bd6c3
RL		 10722 {
10723 .cmd = NL80211_CMD_JOIN_OCB,
10724 .doit = nl80211_join_ocb,
10725 .policy = nl80211_policy,
10726 .flags = GENL_ADMIN_PERM,
10727 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10728 NL80211_FLAG_NEED_RTNL,
10729 },
10730 {
10731 .cmd = NL80211_CMD_LEAVE_OCB,
10732 .doit = nl80211_leave_ocb,
10733 .policy = nl80211_policy,
10734 .flags = GENL_ADMIN_PERM,
10735 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10736 NL80211_FLAG_NEED_RTNL,
10737 },
dfb89c56 10738#ifdef CONFIG_PM
ff1b6e69
JB		 10739 {
10740 .cmd = NL80211_CMD_GET_WOWLAN,
10741 .doit = nl80211_get_wowlan,
10742 .policy = nl80211_policy,
10743 /* can be retrieved by unprivileged users */
10744 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10745 NL80211_FLAG_NEED_RTNL,
10746 },
10747 {
10748 .cmd = NL80211_CMD_SET_WOWLAN,
10749 .doit = nl80211_set_wowlan,
10750 .policy = nl80211_policy,
10751 .flags = GENL_ADMIN_PERM,
10752 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10753 NL80211_FLAG_NEED_RTNL,
10754 },
dfb89c56 10755#endif
e5497d76
JB		 10756 {
10757 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10758 .doit = nl80211_set_rekey_data,
10759 .policy = nl80211_policy,
10760 .flags = GENL_ADMIN_PERM,
10761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10762 NL80211_FLAG_NEED_RTNL |
10763 NL80211_FLAG_CLEAR_SKB,
e5497d76 10764 },
109086ce
AN		 10765 {
10766 .cmd = NL80211_CMD_TDLS_MGMT,
10767 .doit = nl80211_tdls_mgmt,
10768 .policy = nl80211_policy,
10769 .flags = GENL_ADMIN_PERM,
10770 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10771 NL80211_FLAG_NEED_RTNL,
10772 },
10773 {
10774 .cmd = NL80211_CMD_TDLS_OPER,
10775 .doit = nl80211_tdls_oper,
10776 .policy = nl80211_policy,
10777 .flags = GENL_ADMIN_PERM,
10778 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10779 NL80211_FLAG_NEED_RTNL,
10780 },
28946da7
JB		 10781 {
10782 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10783 .doit = nl80211_register_unexpected_frame,
10784 .policy = nl80211_policy,
10785 .flags = GENL_ADMIN_PERM,
10786 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10787 NL80211_FLAG_NEED_RTNL,
10788 },
7f6cf311
JB		 10789 {
10790 .cmd = NL80211_CMD_PROBE_CLIENT,
10791 .doit = nl80211_probe_client,
10792 .policy = nl80211_policy,
10793 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10795 NL80211_FLAG_NEED_RTNL,
10796 },
5e760230
JB		 10797 {
10798 .cmd = NL80211_CMD_REGISTER_BEACONS,
10799 .doit = nl80211_register_beacons,
10800 .policy = nl80211_policy,
10801 .flags = GENL_ADMIN_PERM,
10802 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10803 NL80211_FLAG_NEED_RTNL,
10804 },
1d9d9213
SW		 10805 {
10806 .cmd = NL80211_CMD_SET_NOACK_MAP,
10807 .doit = nl80211_set_noack_map,
10808 .policy = nl80211_policy,
10809 .flags = GENL_ADMIN_PERM,
10810 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10811 NL80211_FLAG_NEED_RTNL,
10812 },
98104fde
JB		 10813 {
10814 .cmd = NL80211_CMD_START_P2P_DEVICE,
10815 .doit = nl80211_start_p2p_device,
10816 .policy = nl80211_policy,
10817 .flags = GENL_ADMIN_PERM,
10818 .internal_flags = NL80211_FLAG_NEED_WDEV |
10819 NL80211_FLAG_NEED_RTNL,
10820 },
10821 {
10822 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10823 .doit = nl80211_stop_p2p_device,
10824 .policy = nl80211_policy,
10825 .flags = GENL_ADMIN_PERM,
10826 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10827 NL80211_FLAG_NEED_RTNL,
10828 },
f4e583c8
AQ		 10829 {
10830 .cmd = NL80211_CMD_SET_MCAST_RATE,
10831 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10832 .policy = nl80211_policy,
10833 .flags = GENL_ADMIN_PERM,
10834 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10835 NL80211_FLAG_NEED_RTNL,
10836 },
10837 {
10838 .cmd = NL80211_CMD_SET_MAC_ACL,
10839 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10840 .policy = nl80211_policy,
10841 .flags = GENL_ADMIN_PERM,
10842 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10843 NL80211_FLAG_NEED_RTNL,
10844 },
04f39047
SW		 10845 {
10846 .cmd = NL80211_CMD_RADAR_DETECT,
10847 .doit = nl80211_start_radar_detection,
10848 .policy = nl80211_policy,
10849 .flags = GENL_ADMIN_PERM,
10850 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10851 NL80211_FLAG_NEED_RTNL,
10852 },
3713b4e3
JB		 10853 {
10854 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10855 .doit = nl80211_get_protocol_features,
10856 .policy = nl80211_policy,
10857 },
355199e0
JM		 10858 {
10859 .cmd = NL80211_CMD_UPDATE_FT_IES,
10860 .doit = nl80211_update_ft_ies,
10861 .policy = nl80211_policy,
10862 .flags = GENL_ADMIN_PERM,
10863 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10864 NL80211_FLAG_NEED_RTNL,
10865 },
5de17984
AS		 10866 {
10867 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10868 .doit = nl80211_crit_protocol_start,
10869 .policy = nl80211_policy,
10870 .flags = GENL_ADMIN_PERM,
10871 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10872 NL80211_FLAG_NEED_RTNL,
10873 },
10874 {
10875 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10876 .doit = nl80211_crit_protocol_stop,
10877 .policy = nl80211_policy,
10878 .flags = GENL_ADMIN_PERM,
10879 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10880 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10881 },
10882 {
10883 .cmd = NL80211_CMD_GET_COALESCE,
10884 .doit = nl80211_get_coalesce,
10885 .policy = nl80211_policy,
10886 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10887 NL80211_FLAG_NEED_RTNL,
10888 },
10889 {
10890 .cmd = NL80211_CMD_SET_COALESCE,
10891 .doit = nl80211_set_coalesce,
10892 .policy = nl80211_policy,
10893 .flags = GENL_ADMIN_PERM,
10894 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10895 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10896 },
10897 {
10898 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10899 .doit = nl80211_channel_switch,
10900 .policy = nl80211_policy,
10901 .flags = GENL_ADMIN_PERM,
10902 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10903 NL80211_FLAG_NEED_RTNL,
10904 },
ad7e718c
JB		 10905 {
10906 .cmd = NL80211_CMD_VENDOR,
10907 .doit = nl80211_vendor_cmd,
10908 .policy = nl80211_policy,
10909 .flags = GENL_ADMIN_PERM,
10910 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10911 NL80211_FLAG_NEED_RTNL,
10912 },
fa9ffc74
KP		 10913 {
10914 .cmd = NL80211_CMD_SET_QOS_MAP,
10915 .doit = nl80211_set_qos_map,
10916 .policy = nl80211_policy,
10917 .flags = GENL_ADMIN_PERM,
10918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10919 NL80211_FLAG_NEED_RTNL,
10920 },
960d01ac
JB		 10921 {
10922 .cmd = NL80211_CMD_ADD_TX_TS,
10923 .doit = nl80211_add_tx_ts,
10924 .policy = nl80211_policy,
10925 .flags = GENL_ADMIN_PERM,
10926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10927 NL80211_FLAG_NEED_RTNL,
10928 },
10929 {
10930 .cmd = NL80211_CMD_DEL_TX_TS,
10931 .doit = nl80211_del_tx_ts,
10932 .policy = nl80211_policy,
10933 .flags = GENL_ADMIN_PERM,
10934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10935 NL80211_FLAG_NEED_RTNL,
10936 },
1057d35e
AN		 10937 {
10938 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10939 .doit = nl80211_tdls_channel_switch,
10940 .policy = nl80211_policy,
10941 .flags = GENL_ADMIN_PERM,
10942 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10943 NL80211_FLAG_NEED_RTNL,
10944 },
10945 {
10946 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10947 .doit = nl80211_tdls_cancel_channel_switch,
10948 .policy = nl80211_policy,
10949 .flags = GENL_ADMIN_PERM,
10950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10951 NL80211_FLAG_NEED_RTNL,
10952 },
55682965 10953};
9588bbd5 10954
55682965
JB		 10955/* notification functions */
10956
3bb20556
JB		 10957void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10958 enum nl80211_commands cmd)
55682965
JB		 10959{
10960 struct sk_buff *msg;
86e8cf98 10961 struct nl80211_dump_wiphy_state state = {};
55682965 10962
3bb20556
JB		 10963 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10964 cmd != NL80211_CMD_DEL_WIPHY);
10965
fd2120ca 10966 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10967 if (!msg)
10968 return;
10969
3bb20556 10970 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10971 nlmsg_free(msg);
10972 return;
10973 }
10974
68eb5503 10975 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10976 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10977}
10978
362a415d
JB		 10979static int nl80211_add_scan_req(struct sk_buff *msg,
10980 struct cfg80211_registered_device *rdev)
10981{
10982 struct cfg80211_scan_request *req = rdev->scan_req;
10983 struct nlattr *nest;
10984 int i;
10985
10986 if (WARN_ON(!req))
10987 return 0;
10988
10989 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10990 if (!nest)
10991 goto nla_put_failure;
9360ffd1
DM		 10992 for (i = 0; i < req->n_ssids; i++) {
10993 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10994 goto nla_put_failure;
10995 }
362a415d
JB		 10996 nla_nest_end(msg, nest);
10997
10998 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10999 if (!nest)
11000 goto nla_put_failure;
9360ffd1
DM		 11001 for (i = 0; i < req->n_channels; i++) {
11002 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11003 goto nla_put_failure;
11004 }
362a415d
JB		 11005 nla_nest_end(msg, nest);
11006
9360ffd1
DM		 11007 if (req->ie &&
11008 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11009 goto nla_put_failure;
362a415d 11010
ae917c9f
JB		 11011 if (req->flags &&
11012 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11013 goto nla_put_failure;
ed473771 11014
362a415d
JB		 11015 return 0;
11016 nla_put_failure:
11017 return -ENOBUFS;
11018}
11019
a538e2d5
JB		 11020static int nl80211_send_scan_msg(struct sk_buff *msg,
11021 struct cfg80211_registered_device *rdev,
fd014284 11022 struct wireless_dev *wdev,
15e47304 11023 u32 portid, u32 seq, int flags,
a538e2d5 11024 u32 cmd)
2a519311
JB		 11025{
11026 void *hdr;
11027
15e47304 11028 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 11029 if (!hdr)
11030 return -1;
11031
9360ffd1 11032 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 11033 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11034 wdev->netdev->ifindex)) ||
11035 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 11036 goto nla_put_failure;
2a519311 11037
362a415d
JB		 11038 /* ignore errors and send incomplete event anyway */
11039 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 11040
11041 return genlmsg_end(msg, hdr);
11042
11043 nla_put_failure:
11044 genlmsg_cancel(msg, hdr);
11045 return -EMSGSIZE;
11046}
11047
807f8a8c
LC		 11048static int
11049nl80211_send_sched_scan_msg(struct sk_buff *msg,
11050 struct cfg80211_registered_device *rdev,
11051 struct net_device *netdev,
15e47304 11052 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 11053{
11054 void *hdr;
11055
15e47304 11056 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 11057 if (!hdr)
11058 return -1;
11059
9360ffd1
DM		 11060 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11061 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11062 goto nla_put_failure;
807f8a8c
LC		 11063
11064 return genlmsg_end(msg, hdr);
11065
11066 nla_put_failure:
11067 genlmsg_cancel(msg, hdr);
11068 return -EMSGSIZE;
11069}
11070
a538e2d5 11071void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 11072 struct wireless_dev *wdev)
a538e2d5
JB		 11073{
11074 struct sk_buff *msg;
11075
58050fce 11076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 11077 if (!msg)
11078 return;
11079
fd014284 11080 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 11081 NL80211_CMD_TRIGGER_SCAN) < 0) {
11082 nlmsg_free(msg);
11083 return;
11084 }
11085
68eb5503 11086 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11087 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 11088}
11089
f9d15d16
JB		 11090struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11091 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 11092{
11093 struct sk_buff *msg;
11094
fd2120ca 11095 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 11096 if (!msg)
f9d15d16 11097 return NULL;
2a519311 11098
fd014284 11099 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 11100 aborted ? NL80211_CMD_SCAN_ABORTED :
11101 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 11102 nlmsg_free(msg);
f9d15d16 11103 return NULL;
2a519311
JB		 11104 }
11105
f9d15d16 11106 return msg;
2a519311
JB		 11107}
11108
f9d15d16
JB		 11109void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11110 struct sk_buff *msg)
2a519311 11111{
2a519311
JB		 11112 if (!msg)
11113 return;
11114
68eb5503 11115 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11116 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 11117}
11118
807f8a8c
LC		 11119void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11120 struct net_device *netdev)
11121{
11122 struct sk_buff *msg;
11123
11124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11125 if (!msg)
11126 return;
11127
11128 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11129 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11130 nlmsg_free(msg);
11131 return;
11132 }
11133
68eb5503 11134 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11135 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11136}
11137
11138void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11139 struct net_device *netdev, u32 cmd)
11140{
11141 struct sk_buff *msg;
11142
58050fce 11143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 11144 if (!msg)
11145 return;
11146
11147 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11148 nlmsg_free(msg);
11149 return;
11150 }
11151
68eb5503 11152 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11153 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 11154}
11155
b0d7aa59
JD		 11156static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11157 struct regulatory_request *request)
73d54c9e 11158{
73d54c9e 11159 /* Userspace can always count this one always being set */
9360ffd1
DM		 11160 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11161 goto nla_put_failure;
11162
11163 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11164 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11165 NL80211_REGDOM_TYPE_WORLD))
11166 goto nla_put_failure;
11167 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11168 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11169 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11170 goto nla_put_failure;
11171 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11172 request->intersect) {
11173 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11174 NL80211_REGDOM_TYPE_INTERSECTION))
11175 goto nla_put_failure;
11176 } else {
11177 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11178 NL80211_REGDOM_TYPE_COUNTRY) ||
11179 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11180 request->alpha2))
11181 goto nla_put_failure;
11182 }
11183
ad30ca2c
AN		 11184 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11185 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11186
11187 if (wiphy &&
11188 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11189 goto nla_put_failure;
1bdd716c
AN		 11190
11191 if (wiphy &&
11192 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11193 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11194 goto nla_put_failure;
ad30ca2c 11195 }
73d54c9e 11196
b0d7aa59
JD		 11197 return true;
11198
11199nla_put_failure:
11200 return false;
11201}
11202
11203/*
11204 * This can happen on global regulatory changes or device specific settings
11205 * based on custom regulatory domains.
11206 */
11207void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11208 struct regulatory_request *request)
11209{
11210 struct sk_buff *msg;
11211 void *hdr;
11212
11213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11214 if (!msg)
11215 return;
11216
11217 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11218 if (!hdr) {
11219 nlmsg_free(msg);
11220 return;
11221 }
11222
11223 if (nl80211_reg_change_event_fill(msg, request) == false)
11224 goto nla_put_failure;
11225
3b7b72ee 11226 genlmsg_end(msg, hdr);
73d54c9e 11227
bc43b28c 11228 rcu_read_lock();
68eb5503 11229 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11230 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 11231 rcu_read_unlock();
73d54c9e
LR		 11232
11233 return;
11234
11235nla_put_failure:
11236 genlmsg_cancel(msg, hdr);
11237 nlmsg_free(msg);
11238}
11239
6039f6d2
JM		 11240static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11241 struct net_device *netdev,
11242 const u8 *buf, size_t len,
b0b6aa2c
EP		 11243 enum nl80211_commands cmd, gfp_t gfp,
11244 int uapsd_queues)
6039f6d2
JM		 11245{
11246 struct sk_buff *msg;
11247 void *hdr;
11248
e6d6e342 11249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 11250 if (!msg)
11251 return;
11252
11253 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11254 if (!hdr) {
11255 nlmsg_free(msg);
11256 return;
11257 }
11258
9360ffd1
DM		 11259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11260 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11261 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11262 goto nla_put_failure;
6039f6d2 11263
b0b6aa2c
EP		 11264 if (uapsd_queues >= 0) {
11265 struct nlattr *nla_wmm =
11266 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11267 if (!nla_wmm)
11268 goto nla_put_failure;
11269
11270 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11271 uapsd_queues))
11272 goto nla_put_failure;
11273
11274 nla_nest_end(msg, nla_wmm);
11275 }
11276
3b7b72ee 11277 genlmsg_end(msg, hdr);
6039f6d2 11278
68eb5503 11279 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11280 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 11281 return;
11282
11283 nla_put_failure:
11284 genlmsg_cancel(msg, hdr);
11285 nlmsg_free(msg);
11286}
11287
11288void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11289 struct net_device *netdev, const u8 *buf,
11290 size_t len, gfp_t gfp)
6039f6d2
JM		 11291{
11292 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11293 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 11294}
11295
11296void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11297 struct net_device *netdev, const u8 *buf,
b0b6aa2c 11298 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 11299{
e6d6e342 11300 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11301 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 11302}
11303
53b46b84 11304void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11305 struct net_device *netdev, const u8 *buf,
11306 size_t len, gfp_t gfp)
6039f6d2
JM		 11307{
11308 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11309 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 11310}
11311
53b46b84
JM		 11312void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11313 struct net_device *netdev, const u8 *buf,
e6d6e342 11314 size_t len, gfp_t gfp)
6039f6d2
JM		 11315{
11316 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 11317 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 11318}
11319
6ff57cf8
JB		 11320void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11321 size_t len)
cf4e594e 11322{
947add36
JB		 11323 struct wireless_dev *wdev = dev->ieee80211_ptr;
11324 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11325 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 11326 const struct ieee80211_mgmt *mgmt = (void *)buf;
11327 u32 cmd;
947add36 11328
6ff57cf8
JB		 11329 if (WARN_ON(len < 2))
11330 return;
cf4e594e 11331
6ff57cf8
JB		 11332 if (ieee80211_is_deauth(mgmt->frame_control))
11333 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11334 else
11335 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 11336
6ff57cf8 11337 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 11338 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 11339}
6ff57cf8 11340EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 11341
1b06bb40
LR		 11342static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11343 struct net_device *netdev, int cmd,
e6d6e342 11344 const u8 *addr, gfp_t gfp)
1965c853
JM		 11345{
11346 struct sk_buff *msg;
11347 void *hdr;
11348
e6d6e342 11349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 11350 if (!msg)
11351 return;
11352
11353 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11354 if (!hdr) {
11355 nlmsg_free(msg);
11356 return;
11357 }
11358
9360ffd1
DM		 11359 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11360 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11361 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11362 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11363 goto nla_put_failure;
1965c853 11364
3b7b72ee 11365 genlmsg_end(msg, hdr);
1965c853 11366
68eb5503 11367 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11368 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 11369 return;
11370
11371 nla_put_failure:
11372 genlmsg_cancel(msg, hdr);
11373 nlmsg_free(msg);
11374}
11375
11376void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11377 struct net_device *netdev, const u8 *addr,
11378 gfp_t gfp)
1965c853
JM		 11379{
11380 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 11381 addr, gfp);
1965c853
JM		 11382}
11383
11384void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 11385 struct net_device *netdev, const u8 *addr,
11386 gfp_t gfp)
1965c853 11387{
e6d6e342
JB		 11388 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11389 addr, gfp);
1965c853
JM		 11390}
11391
b23aa676
SO		 11392void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11393 struct net_device *netdev, const u8 *bssid,
11394 const u8 *req_ie, size_t req_ie_len,
11395 const u8 *resp_ie, size_t resp_ie_len,
11396 u16 status, gfp_t gfp)
11397{
11398 struct sk_buff *msg;
11399 void *hdr;
11400
58050fce 11401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 11402 if (!msg)
11403 return;
11404
11405 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11406 if (!hdr) {
11407 nlmsg_free(msg);
11408 return;
11409 }
11410
9360ffd1
DM		 11411 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11412 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11413 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11414 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11415 (req_ie &&
11416 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11417 (resp_ie &&
11418 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11419 goto nla_put_failure;
b23aa676 11420
3b7b72ee 11421 genlmsg_end(msg, hdr);
b23aa676 11422
68eb5503 11423 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11424 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11425 return;
11426
11427 nla_put_failure:
11428 genlmsg_cancel(msg, hdr);
11429 nlmsg_free(msg);
11430
11431}
11432
11433void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11434 struct net_device *netdev, const u8 *bssid,
11435 const u8 *req_ie, size_t req_ie_len,
11436 const u8 *resp_ie, size_t resp_ie_len, 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_ROAM);
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 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11454 (req_ie &&
11455 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11456 (resp_ie &&
11457 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11458 goto nla_put_failure;
b23aa676 11459
3b7b72ee 11460 genlmsg_end(msg, hdr);
b23aa676 11461
68eb5503 11462 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11463 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 11464 return;
11465
11466 nla_put_failure:
11467 genlmsg_cancel(msg, hdr);
11468 nlmsg_free(msg);
11469
11470}
11471
11472void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11473 struct net_device *netdev, u16 reason,
667503dd 11474 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 11475{
11476 struct sk_buff *msg;
11477 void *hdr;
11478
58050fce 11479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 11480 if (!msg)
11481 return;
11482
11483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11484 if (!hdr) {
11485 nlmsg_free(msg);
11486 return;
11487 }
11488
9360ffd1
DM		 11489 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11490 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11491 (from_ap && reason &&
11492 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11493 (from_ap &&
11494 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11495 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11496 goto nla_put_failure;
b23aa676 11497
3b7b72ee 11498 genlmsg_end(msg, hdr);
b23aa676 11499
68eb5503 11500 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11501 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 11502 return;
11503
11504 nla_put_failure:
11505 genlmsg_cancel(msg, hdr);
11506 nlmsg_free(msg);
11507
11508}
11509
04a773ad
JB		 11510void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11511 struct net_device *netdev, const u8 *bssid,
11512 gfp_t gfp)
11513{
11514 struct sk_buff *msg;
11515 void *hdr;
11516
fd2120ca 11517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 11518 if (!msg)
11519 return;
11520
11521 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11522 if (!hdr) {
11523 nlmsg_free(msg);
11524 return;
11525 }
11526
9360ffd1
DM		 11527 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11528 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11529 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11530 goto nla_put_failure;
04a773ad 11531
3b7b72ee 11532 genlmsg_end(msg, hdr);
04a773ad 11533
68eb5503 11534 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11535 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 11536 return;
11537
11538 nla_put_failure:
11539 genlmsg_cancel(msg, hdr);
11540 nlmsg_free(msg);
11541}
11542
947add36
JB		 11543void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11544 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 11545{
947add36 11546 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11547 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 11548 struct sk_buff *msg;
11549 void *hdr;
11550
947add36
JB		 11551 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11552 return;
11553
11554 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11555
c93b5e71
JC		 11556 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11557 if (!msg)
11558 return;
11559
11560 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11561 if (!hdr) {
11562 nlmsg_free(msg);
11563 return;
11564 }
11565
9360ffd1 11566 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 11567 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11568 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 11569 (ie_len && ie &&
11570 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11571 goto nla_put_failure;
c93b5e71 11572
3b7b72ee 11573 genlmsg_end(msg, hdr);
c93b5e71 11574
68eb5503 11575 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11576 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 11577 return;
11578
11579 nla_put_failure:
11580 genlmsg_cancel(msg, hdr);
11581 nlmsg_free(msg);
11582}
947add36 11583EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 11584
a3b8b056
JM		 11585void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11586 struct net_device *netdev, const u8 *addr,
11587 enum nl80211_key_type key_type, int key_id,
e6d6e342 11588 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11589{
11590 struct sk_buff *msg;
11591 void *hdr;
11592
e6d6e342 11593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11594 if (!msg)
11595 return;
11596
11597 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11598 if (!hdr) {
11599 nlmsg_free(msg);
11600 return;
11601 }
11602
9360ffd1
DM		 11603 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11604 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11605 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11606 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11607 (key_id != -1 &&
11608 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11609 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11610 goto nla_put_failure;
a3b8b056 11611
3b7b72ee 11612 genlmsg_end(msg, hdr);
a3b8b056 11613
68eb5503 11614 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11615 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11616 return;
11617
11618 nla_put_failure:
11619 genlmsg_cancel(msg, hdr);
11620 nlmsg_free(msg);
11621}
11622
6bad8766
LR		 11623void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11624 struct ieee80211_channel *channel_before,
11625 struct ieee80211_channel *channel_after)
11626{
11627 struct sk_buff *msg;
11628 void *hdr;
11629 struct nlattr *nl_freq;
11630
fd2120ca 11631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11632 if (!msg)
11633 return;
11634
11635 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11636 if (!hdr) {
11637 nlmsg_free(msg);
11638 return;
11639 }
11640
11641 /*
11642 * Since we are applying the beacon hint to a wiphy we know its
11643 * wiphy_idx is valid
11644 */
9360ffd1
DM		 11645 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11646 goto nla_put_failure;
6bad8766
LR		 11647
11648 /* Before */
11649 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11650 if (!nl_freq)
11651 goto nla_put_failure;
cdc89b97 11652 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11653 goto nla_put_failure;
11654 nla_nest_end(msg, nl_freq);
11655
11656 /* After */
11657 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11658 if (!nl_freq)
11659 goto nla_put_failure;
cdc89b97 11660 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11661 goto nla_put_failure;
11662 nla_nest_end(msg, nl_freq);
11663
3b7b72ee 11664 genlmsg_end(msg, hdr);
6bad8766 11665
463d0183 11666 rcu_read_lock();
68eb5503 11667 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11668 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11669 rcu_read_unlock();
6bad8766
LR		 11670
11671 return;
11672
11673nla_put_failure:
11674 genlmsg_cancel(msg, hdr);
11675 nlmsg_free(msg);
11676}
11677
9588bbd5
JM		 11678static void nl80211_send_remain_on_chan_event(
11679 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11680 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11681 struct ieee80211_channel *chan,
9588bbd5
JM		 11682 unsigned int duration, gfp_t gfp)
11683{
11684 struct sk_buff *msg;
11685 void *hdr;
11686
11687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11688 if (!msg)
11689 return;
11690
11691 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11692 if (!hdr) {
11693 nlmsg_free(msg);
11694 return;
11695 }
11696
9360ffd1 11697 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11698 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11699 wdev->netdev->ifindex)) ||
00f53350 11700 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11701 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11702 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11703 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11704 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11705 goto nla_put_failure;
9588bbd5 11706
9360ffd1
DM		 11707 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11708 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11709 goto nla_put_failure;
9588bbd5 11710
3b7b72ee 11711 genlmsg_end(msg, hdr);
9588bbd5 11712
68eb5503 11713 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11714 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11715 return;
11716
11717 nla_put_failure:
11718 genlmsg_cancel(msg, hdr);
11719 nlmsg_free(msg);
11720}
11721
947add36
JB		 11722void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11723 struct ieee80211_channel *chan,
11724 unsigned int duration, gfp_t gfp)
9588bbd5 11725{
947add36 11726 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11727 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11728
11729 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11730 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11731 rdev, wdev, cookie, chan,
42d97a59 11732 duration, gfp);
9588bbd5 11733}
947add36 11734EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11735
947add36
JB		 11736void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11737 struct ieee80211_channel *chan,
11738 gfp_t gfp)
9588bbd5 11739{
947add36 11740 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11741 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11742
11743 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11744 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11745 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11746}
947add36 11747EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11748
947add36
JB		 11749void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11750 struct station_info *sinfo, gfp_t gfp)
98b62183 11751{
947add36 11752 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11753 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11754 struct sk_buff *msg;
11755
947add36
JB		 11756 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11757
58050fce 11758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11759 if (!msg)
11760 return;
11761
cf5ead82 11762 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
66266b3a 11763 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11764 nlmsg_free(msg);
11765 return;
11766 }
11767
68eb5503 11768 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11769 NL80211_MCGRP_MLME, gfp);
98b62183 11770}
947add36 11771EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11772
cf5ead82
JB		 11773void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11774 struct station_info *sinfo, gfp_t gfp)
ec15e68b 11775{
947add36 11776 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11777 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b 11778 struct sk_buff *msg;
cf5ead82
JB		 11779 struct station_info empty_sinfo = {};
11780
11781 if (!sinfo)
11782 sinfo = &empty_sinfo;
ec15e68b 11783
947add36
JB		 11784 trace_cfg80211_del_sta(dev, mac_addr);
11785
58050fce 11786 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11787 if (!msg)
11788 return;
11789
cf5ead82
JB		 11790 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
11791 rdev, dev, mac_addr, sinfo)) {
ec15e68b
JM		 11792 nlmsg_free(msg);
11793 return;
11794 }
11795
68eb5503 11796 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11797 NL80211_MCGRP_MLME, gfp);
ec15e68b 11798}
cf5ead82 11799EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
ec15e68b 11800
947add36
JB		 11801void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11802 enum nl80211_connect_failed_reason reason,
11803 gfp_t gfp)
ed44a951 11804{
947add36 11805 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11806 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11807 struct sk_buff *msg;
11808 void *hdr;
11809
11810 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11811 if (!msg)
11812 return;
11813
11814 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11815 if (!hdr) {
11816 nlmsg_free(msg);
11817 return;
11818 }
11819
11820 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11822 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11823 goto nla_put_failure;
11824
11825 genlmsg_end(msg, hdr);
11826
68eb5503 11827 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11828 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11829 return;
11830
11831 nla_put_failure:
11832 genlmsg_cancel(msg, hdr);
11833 nlmsg_free(msg);
11834}
947add36 11835EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11836
b92ab5d8
JB		 11837static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11838 const u8 *addr, gfp_t gfp)
28946da7
JB		 11839{
11840 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11841 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11842 struct sk_buff *msg;
11843 void *hdr;
15e47304 11844 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11845
15e47304 11846 if (!nlportid)
28946da7
JB		 11847 return false;
11848
11849 msg = nlmsg_new(100, gfp);
11850 if (!msg)
11851 return true;
11852
b92ab5d8 11853 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11854 if (!hdr) {
11855 nlmsg_free(msg);
11856 return true;
11857 }
11858
9360ffd1
DM		 11859 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11860 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11862 goto nla_put_failure;
28946da7 11863
9c90a9f6 11864 genlmsg_end(msg, hdr);
15e47304 11865 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11866 return true;
11867
11868 nla_put_failure:
11869 genlmsg_cancel(msg, hdr);
11870 nlmsg_free(msg);
11871 return true;
11872}
11873
947add36
JB		 11874bool cfg80211_rx_spurious_frame(struct net_device *dev,
11875 const u8 *addr, gfp_t gfp)
b92ab5d8 11876{
947add36
JB		 11877 struct wireless_dev *wdev = dev->ieee80211_ptr;
11878 bool ret;
11879
11880 trace_cfg80211_rx_spurious_frame(dev, addr);
11881
11882 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11883 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11884 trace_cfg80211_return_bool(false);
11885 return false;
11886 }
11887 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11888 addr, gfp);
11889 trace_cfg80211_return_bool(ret);
11890 return ret;
b92ab5d8 11891}
947add36 11892EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11893
947add36
JB		 11894bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11895 const u8 *addr, gfp_t gfp)
b92ab5d8 11896{
947add36
JB		 11897 struct wireless_dev *wdev = dev->ieee80211_ptr;
11898 bool ret;
11899
11900 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11901
11902 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11903 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11904 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11905 trace_cfg80211_return_bool(false);
11906 return false;
11907 }
11908 ret = __nl80211_unexpected_frame(dev,
11909 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11910 addr, gfp);
11911 trace_cfg80211_return_bool(ret);
11912 return ret;
b92ab5d8 11913}
947add36 11914EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11915
2e161f78 11916int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11917 struct wireless_dev *wdev, u32 nlportid,
804483e9 11918 int freq, int sig_dbm,
19504cf5 11919 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11920{
71bbc994 11921 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11922 struct sk_buff *msg;
11923 void *hdr;
026331c4
JM		 11924
11925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11926 if (!msg)
11927 return -ENOMEM;
11928
2e161f78 11929 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11930 if (!hdr) {
11931 nlmsg_free(msg);
11932 return -ENOMEM;
11933 }
11934
9360ffd1 11935 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11936 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11937 netdev->ifindex)) ||
a838490b 11938 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11939 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11940 (sig_dbm &&
11941 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11942 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11943 (flags &&
11944 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11945 goto nla_put_failure;
026331c4 11946
3b7b72ee 11947 genlmsg_end(msg, hdr);
026331c4 11948
15e47304 11949 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11950
11951 nla_put_failure:
11952 genlmsg_cancel(msg, hdr);
11953 nlmsg_free(msg);
11954 return -ENOBUFS;
11955}
11956
947add36
JB		 11957void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11958 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11959{
947add36 11960 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11961 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11962 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11963 struct sk_buff *msg;
11964 void *hdr;
11965
947add36
JB		 11966 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11967
026331c4
JM		 11968 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11969 if (!msg)
11970 return;
11971
2e161f78 11972 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11973 if (!hdr) {
11974 nlmsg_free(msg);
11975 return;
11976 }
11977
9360ffd1 11978 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11979 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11980 netdev->ifindex)) ||
a838490b 11981 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11982 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11983 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11984 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11985 goto nla_put_failure;
026331c4 11986
3b7b72ee 11987 genlmsg_end(msg, hdr);
026331c4 11988
68eb5503 11989 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11990 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11991 return;
11992
11993 nla_put_failure:
11994 genlmsg_cancel(msg, hdr);
11995 nlmsg_free(msg);
11996}
947add36 11997EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11998
5b97f49d
JB		 11999static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12000 const char *mac, gfp_t gfp)
d6dc1a38 12001{
947add36 12002 struct wireless_dev *wdev = dev->ieee80211_ptr;
5b97f49d
JB		 12003 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12004 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12005 void **cb;
947add36 12006
d6dc1a38 12007 if (!msg)
5b97f49d 12008 return NULL;
d6dc1a38 12009
5b97f49d
JB		 12010 cb = (void **)msg->cb;
12011
12012 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12013 if (!cb[0]) {
d6dc1a38 12014 nlmsg_free(msg);
5b97f49d 12015 return NULL;
d6dc1a38
JO		 12016 }
12017
9360ffd1 12018 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 12019 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 12020 goto nla_put_failure;
d6dc1a38 12021
5b97f49d 12022 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
d6dc1a38
JO		 12023 goto nla_put_failure;
12024
5b97f49d
JB		 12025 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12026 if (!cb[1])
9360ffd1 12027 goto nla_put_failure;
d6dc1a38 12028
5b97f49d 12029 cb[2] = rdev;
d6dc1a38 12030
5b97f49d
JB		 12031 return msg;
12032 nla_put_failure:
12033 nlmsg_free(msg);
12034 return NULL;
12035}
12036
12037static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12038{
12039 void **cb = (void **)msg->cb;
12040 struct cfg80211_registered_device *rdev = cb[2];
12041
12042 nla_nest_end(msg, cb[1]);
12043 genlmsg_end(msg, cb[0]);
12044
12045 memset(msg->cb, 0, sizeof(msg->cb));
d6dc1a38 12046
68eb5503 12047 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12048 NL80211_MCGRP_MLME, gfp);
5b97f49d
JB		 12049}
12050
12051void cfg80211_cqm_rssi_notify(struct net_device *dev,
12052 enum nl80211_cqm_rssi_threshold_event rssi_event,
12053 gfp_t gfp)
12054{
12055 struct sk_buff *msg;
12056
12057 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12058
98f03342
JB		 12059 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12060 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12061 return;
12062
5b97f49d
JB		 12063 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12064 if (!msg)
12065 return;
12066
12067 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12068 rssi_event))
12069 goto nla_put_failure;
12070
12071 cfg80211_send_cqm(msg, gfp);
12072
d6dc1a38
JO		 12073 return;
12074
12075 nla_put_failure:
d6dc1a38
JO		 12076 nlmsg_free(msg);
12077}
947add36 12078EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 12079
5b97f49d
JB		 12080void cfg80211_cqm_txe_notify(struct net_device *dev,
12081 const u8 *peer, u32 num_packets,
12082 u32 rate, u32 intvl, gfp_t gfp)
12083{
12084 struct sk_buff *msg;
12085
12086 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12087 if (!msg)
12088 return;
12089
12090 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12091 goto nla_put_failure;
12092
12093 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12094 goto nla_put_failure;
12095
12096 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12097 goto nla_put_failure;
12098
12099 cfg80211_send_cqm(msg, gfp);
12100 return;
12101
12102 nla_put_failure:
12103 nlmsg_free(msg);
12104}
12105EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12106
12107void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12108 const u8 *peer, u32 num_packets, gfp_t gfp)
12109{
12110 struct sk_buff *msg;
12111
12112 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12113
12114 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12115 if (!msg)
12116 return;
12117
12118 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12119 goto nla_put_failure;
12120
12121 cfg80211_send_cqm(msg, gfp);
12122 return;
12123
12124 nla_put_failure:
12125 nlmsg_free(msg);
12126}
12127EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12128
98f03342
JB		 12129void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12130{
12131 struct sk_buff *msg;
12132
12133 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12134 if (!msg)
12135 return;
12136
12137 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12138 goto nla_put_failure;
12139
12140 cfg80211_send_cqm(msg, gfp);
12141 return;
12142
12143 nla_put_failure:
12144 nlmsg_free(msg);
12145}
12146EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12147
947add36
JB		 12148static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12149 struct net_device *netdev, const u8 *bssid,
12150 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 12151{
12152 struct sk_buff *msg;
12153 struct nlattr *rekey_attr;
12154 void *hdr;
12155
58050fce 12156 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 12157 if (!msg)
12158 return;
12159
12160 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12161 if (!hdr) {
12162 nlmsg_free(msg);
12163 return;
12164 }
12165
9360ffd1
DM		 12166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12167 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12168 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12169 goto nla_put_failure;
e5497d76
JB		 12170
12171 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12172 if (!rekey_attr)
12173 goto nla_put_failure;
12174
9360ffd1
DM		 12175 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12176 NL80211_REPLAY_CTR_LEN, replay_ctr))
12177 goto nla_put_failure;
e5497d76
JB		 12178
12179 nla_nest_end(msg, rekey_attr);
12180
3b7b72ee 12181 genlmsg_end(msg, hdr);
e5497d76 12182
68eb5503 12183 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12184 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 12185 return;
12186
12187 nla_put_failure:
12188 genlmsg_cancel(msg, hdr);
12189 nlmsg_free(msg);
12190}
12191
947add36
JB		 12192void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12193 const u8 *replay_ctr, gfp_t gfp)
12194{
12195 struct wireless_dev *wdev = dev->ieee80211_ptr;
12196 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12197 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12198
12199 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12200 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12201}
12202EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12203
12204static void
12205nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12206 struct net_device *netdev, int index,
12207 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 12208{
12209 struct sk_buff *msg;
12210 struct nlattr *attr;
12211 void *hdr;
12212
58050fce 12213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 12214 if (!msg)
12215 return;
12216
12217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12218 if (!hdr) {
12219 nlmsg_free(msg);
12220 return;
12221 }
12222
9360ffd1
DM		 12223 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12224 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12225 goto nla_put_failure;
c9df56b4
JM		 12226
12227 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12228 if (!attr)
12229 goto nla_put_failure;
12230
9360ffd1
DM		 12231 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12232 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12233 (preauth &&
12234 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12235 goto nla_put_failure;
c9df56b4
JM		 12236
12237 nla_nest_end(msg, attr);
12238
3b7b72ee 12239 genlmsg_end(msg, hdr);
c9df56b4 12240
68eb5503 12241 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12242 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 12243 return;
12244
12245 nla_put_failure:
12246 genlmsg_cancel(msg, hdr);
12247 nlmsg_free(msg);
12248}
12249
947add36
JB		 12250void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12251 const u8 *bssid, bool preauth, gfp_t gfp)
12252{
12253 struct wireless_dev *wdev = dev->ieee80211_ptr;
12254 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12255 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 12256
12257 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12258 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12259}
12260EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12261
12262static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12263 struct net_device *netdev,
12264 struct cfg80211_chan_def *chandef,
f8d7552e
LC		 12265 gfp_t gfp,
12266 enum nl80211_commands notif,
12267 u8 count)
5314526b
TP		 12268{
12269 struct sk_buff *msg;
12270 void *hdr;
12271
58050fce 12272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 12273 if (!msg)
12274 return;
12275
f8d7552e 12276 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
5314526b
TP		 12277 if (!hdr) {
12278 nlmsg_free(msg);
12279 return;
12280 }
12281
683b6d3b
JB		 12282 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12283 goto nla_put_failure;
12284
12285 if (nl80211_send_chandef(msg, chandef))
7eab0f64 12286 goto nla_put_failure;
5314526b 12287
f8d7552e
LC		 12288 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12289 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12290 goto nla_put_failure;
12291
5314526b
TP		 12292 genlmsg_end(msg, hdr);
12293
68eb5503 12294 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12295 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 12296 return;
12297
12298 nla_put_failure:
12299 genlmsg_cancel(msg, hdr);
12300 nlmsg_free(msg);
12301}
12302
947add36
JB		 12303void cfg80211_ch_switch_notify(struct net_device *dev,
12304 struct cfg80211_chan_def *chandef)
84f10708 12305{
947add36
JB		 12306 struct wireless_dev *wdev = dev->ieee80211_ptr;
12307 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12308 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 12309
e487eaeb 12310 ASSERT_WDEV_LOCK(wdev);
947add36 12311
e487eaeb 12312 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36 12313
9e0e2961 12314 wdev->chandef = *chandef;
96f55f12 12315 wdev->preset_chandef = *chandef;
f8d7552e
LC		 12316 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12317 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
947add36
JB		 12318}
12319EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12320
f8d7552e
LC		 12321void cfg80211_ch_switch_started_notify(struct net_device *dev,
12322 struct cfg80211_chan_def *chandef,
12323 u8 count)
12324{
12325 struct wireless_dev *wdev = dev->ieee80211_ptr;
12326 struct wiphy *wiphy = wdev->wiphy;
12327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12328
12329 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12330
12331 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12332 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12333}
12334EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12335
04f39047
SW		 12336void
12337nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 12338 const struct cfg80211_chan_def *chandef,
04f39047
SW		 12339 enum nl80211_radar_event event,
12340 struct net_device *netdev, gfp_t gfp)
12341{
12342 struct sk_buff *msg;
12343 void *hdr;
12344
12345 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12346 if (!msg)
12347 return;
12348
12349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12350 if (!hdr) {
12351 nlmsg_free(msg);
12352 return;
12353 }
12354
12355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12356 goto nla_put_failure;
12357
12358 /* NOP and radar events don't need a netdev parameter */
12359 if (netdev) {
12360 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12361
12362 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12363 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12364 goto nla_put_failure;
12365 }
12366
12367 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12368 goto nla_put_failure;
12369
12370 if (nl80211_send_chandef(msg, chandef))
12371 goto nla_put_failure;
12372
9c90a9f6 12373 genlmsg_end(msg, hdr);
04f39047 12374
68eb5503 12375 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12376 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 12377 return;
12378
12379 nla_put_failure:
12380 genlmsg_cancel(msg, hdr);
12381 nlmsg_free(msg);
12382}
12383
7f6cf311
JB		 12384void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12385 u64 cookie, bool acked, gfp_t gfp)
12386{
12387 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12388 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 12389 struct sk_buff *msg;
12390 void *hdr;
7f6cf311 12391
4ee3e063
BL		 12392 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12393
58050fce 12394 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 12395
7f6cf311
JB		 12396 if (!msg)
12397 return;
12398
12399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12400 if (!hdr) {
12401 nlmsg_free(msg);
12402 return;
12403 }
12404
9360ffd1
DM		 12405 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12406 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12407 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12408 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12409 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12410 goto nla_put_failure;
7f6cf311 12411
9c90a9f6 12412 genlmsg_end(msg, hdr);
7f6cf311 12413
68eb5503 12414 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12415 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 12416 return;
12417
12418 nla_put_failure:
12419 genlmsg_cancel(msg, hdr);
12420 nlmsg_free(msg);
12421}
12422EXPORT_SYMBOL(cfg80211_probe_status);
12423
5e760230
JB		 12424void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12425 const u8 *frame, size_t len,
37c73b5f 12426 int freq, int sig_dbm)
5e760230 12427{
f26cbf40 12428 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 12429 struct sk_buff *msg;
12430 void *hdr;
37c73b5f 12431 struct cfg80211_beacon_registration *reg;
5e760230 12432
4ee3e063
BL		 12433 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12434
37c73b5f
BG		 12435 spin_lock_bh(&rdev->beacon_registrations_lock);
12436 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12437 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12438 if (!msg) {
12439 spin_unlock_bh(&rdev->beacon_registrations_lock);
12440 return;
12441 }
5e760230 12442
37c73b5f
BG		 12443 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12444 if (!hdr)
12445 goto nla_put_failure;
5e760230 12446
37c73b5f
BG		 12447 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12448 (freq &&
12449 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12450 (sig_dbm &&
12451 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12452 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12453 goto nla_put_failure;
5e760230 12454
37c73b5f 12455 genlmsg_end(msg, hdr);
5e760230 12456
37c73b5f
BG		 12457 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12458 }
12459 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 12460 return;
12461
12462 nla_put_failure:
37c73b5f
BG		 12463 spin_unlock_bh(&rdev->beacon_registrations_lock);
12464 if (hdr)
12465 genlmsg_cancel(msg, hdr);
5e760230
JB		 12466 nlmsg_free(msg);
12467}
12468EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12469
cd8f7cb4 12470#ifdef CONFIG_PM
8cd4d456
LC		 12471static int cfg80211_net_detect_results(struct sk_buff *msg,
12472 struct cfg80211_wowlan_wakeup *wakeup)
12473{
12474 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12475 struct nlattr *nl_results, *nl_match, *nl_freqs;
12476 int i, j;
12477
12478 nl_results = nla_nest_start(
12479 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12480 if (!nl_results)
12481 return -EMSGSIZE;
12482
12483 for (i = 0; i < nd->n_matches; i++) {
12484 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12485
12486 nl_match = nla_nest_start(msg, i);
12487 if (!nl_match)
12488 break;
12489
12490 /* The SSID attribute is optional in nl80211, but for
12491 * simplicity reasons it's always present in the
12492 * cfg80211 structure. If a driver can't pass the
12493 * SSID, that needs to be changed. A zero length SSID
12494 * is still a valid SSID (wildcard), so it cannot be
12495 * used for this purpose.
12496 */
12497 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12498 match->ssid.ssid)) {
12499 nla_nest_cancel(msg, nl_match);
12500 goto out;
12501 }
12502
12503 if (match->n_channels) {
12504 nl_freqs = nla_nest_start(
12505 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12506 if (!nl_freqs) {
12507 nla_nest_cancel(msg, nl_match);
12508 goto out;
12509 }
12510
12511 for (j = 0; j < match->n_channels; j++) {
12512 if (nla_put_u32(msg,
12513 NL80211_ATTR_WIPHY_FREQ,
12514 match->channels[j])) {
12515 nla_nest_cancel(msg, nl_freqs);
12516 nla_nest_cancel(msg, nl_match);
12517 goto out;
12518 }
12519 }
12520
12521 nla_nest_end(msg, nl_freqs);
12522 }
12523
12524 nla_nest_end(msg, nl_match);
12525 }
12526
12527out:
12528 nla_nest_end(msg, nl_results);
12529 return 0;
12530}
12531
cd8f7cb4
JB		 12532void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12533 struct cfg80211_wowlan_wakeup *wakeup,
12534 gfp_t gfp)
12535{
f26cbf40 12536 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 12537 struct sk_buff *msg;
12538 void *hdr;
9c90a9f6 12539 int size = 200;
cd8f7cb4
JB		 12540
12541 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12542
12543 if (wakeup)
12544 size += wakeup->packet_present_len;
12545
12546 msg = nlmsg_new(size, gfp);
12547 if (!msg)
12548 return;
12549
12550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12551 if (!hdr)
12552 goto free_msg;
12553
12554 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12555 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12556 goto free_msg;
12557
12558 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12559 wdev->netdev->ifindex))
12560 goto free_msg;
12561
12562 if (wakeup) {
12563 struct nlattr *reasons;
12564
12565 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 12566 if (!reasons)
12567 goto free_msg;
cd8f7cb4
JB		 12568
12569 if (wakeup->disconnect &&
12570 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12571 goto free_msg;
12572 if (wakeup->magic_pkt &&
12573 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12574 goto free_msg;
12575 if (wakeup->gtk_rekey_failure &&
12576 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12577 goto free_msg;
12578 if (wakeup->eap_identity_req &&
12579 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12580 goto free_msg;
12581 if (wakeup->four_way_handshake &&
12582 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12583 goto free_msg;
12584 if (wakeup->rfkill_release &&
12585 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12586 goto free_msg;
12587
12588 if (wakeup->pattern_idx >= 0 &&
12589 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12590 wakeup->pattern_idx))
12591 goto free_msg;
12592
ae917c9f
JB		 12593 if (wakeup->tcp_match &&
12594 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12595 goto free_msg;
2a0e047e 12596
ae917c9f
JB		 12597 if (wakeup->tcp_connlost &&
12598 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12599 goto free_msg;
2a0e047e 12600
ae917c9f
JB		 12601 if (wakeup->tcp_nomoretokens &&
12602 nla_put_flag(msg,
12603 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12604 goto free_msg;
2a0e047e 12605
cd8f7cb4
JB		 12606 if (wakeup->packet) {
12607 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12608 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12609
12610 if (!wakeup->packet_80211) {
12611 pkt_attr =
12612 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12613 len_attr =
12614 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12615 }
12616
12617 if (wakeup->packet_len &&
12618 nla_put_u32(msg, len_attr, wakeup->packet_len))
12619 goto free_msg;
12620
12621 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12622 wakeup->packet))
12623 goto free_msg;
12624 }
12625
8cd4d456
LC		 12626 if (wakeup->net_detect &&
12627 cfg80211_net_detect_results(msg, wakeup))
12628 goto free_msg;
12629
cd8f7cb4
JB		 12630 nla_nest_end(msg, reasons);
12631 }
12632
9c90a9f6 12633 genlmsg_end(msg, hdr);
cd8f7cb4 12634
68eb5503 12635 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12636 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 12637 return;
12638
12639 free_msg:
12640 nlmsg_free(msg);
12641}
12642EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12643#endif
12644
3475b094
JM		 12645void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12646 enum nl80211_tdls_operation oper,
12647 u16 reason_code, gfp_t gfp)
12648{
12649 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 12650 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 12651 struct sk_buff *msg;
12652 void *hdr;
3475b094
JM		 12653
12654 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12655 reason_code);
12656
12657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12658 if (!msg)
12659 return;
12660
12661 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12662 if (!hdr) {
12663 nlmsg_free(msg);
12664 return;
12665 }
12666
12667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12668 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12669 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12670 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12671 (reason_code > 0 &&
12672 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12673 goto nla_put_failure;
12674
9c90a9f6 12675 genlmsg_end(msg, hdr);
3475b094 12676
68eb5503 12677 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12678 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12679 return;
12680
12681 nla_put_failure:
12682 genlmsg_cancel(msg, hdr);
12683 nlmsg_free(msg);
12684}
12685EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12686
026331c4
JM		 12687static int nl80211_netlink_notify(struct notifier_block * nb,
12688 unsigned long state,
12689 void *_notify)
12690{
12691 struct netlink_notify *notify = _notify;
12692 struct cfg80211_registered_device *rdev;
12693 struct wireless_dev *wdev;
37c73b5f 12694 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12695
12696 if (state != NETLINK_URELEASE)
12697 return NOTIFY_DONE;
12698
12699 rcu_read_lock();
12700
5e760230 12701 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a 12702 bool schedule_destroy_work = false;
93a1e86c
JR		 12703 bool schedule_scan_stop = false;
12704 struct cfg80211_sched_scan_request *sched_scan_req =
12705 rcu_dereference(rdev->sched_scan_req);
12706
12707 if (sched_scan_req && notify->portid &&
12708 sched_scan_req->owner_nlportid == notify->portid)
12709 schedule_scan_stop = true;
78f22b6a
JB		 12710
12711 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12712 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12713
78f22b6a
JB		 12714 if (wdev->owner_nlportid == notify->portid)
12715 schedule_destroy_work = true;
12716 }
12717
37c73b5f
BG		 12718 spin_lock_bh(&rdev->beacon_registrations_lock);
12719 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12720 list) {
12721 if (reg->nlportid == notify->portid) {
12722 list_del(&reg->list);
12723 kfree(reg);
12724 break;
12725 }
12726 }
12727 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12728
12729 if (schedule_destroy_work) {
12730 struct cfg80211_iface_destroy *destroy;
12731
12732 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12733 if (destroy) {
12734 destroy->nlportid = notify->portid;
12735 spin_lock(&rdev->destroy_list_lock);
12736 list_add(&destroy->list, &rdev->destroy_list);
12737 spin_unlock(&rdev->destroy_list_lock);
12738 schedule_work(&rdev->destroy_work);
12739 }
93a1e86c
JR		 12740 } else if (schedule_scan_stop) {
12741 sched_scan_req->owner_nlportid = 0;
12742
12743 if (rdev->ops->sched_scan_stop &&
12744 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12745 schedule_work(&rdev->sched_scan_stop_wk);
78f22b6a 12746 }
5e760230 12747 }
026331c4
JM		 12748
12749 rcu_read_unlock();
12750
6784c7db 12751 return NOTIFY_OK;
026331c4
JM		 12752}
12753
12754static struct notifier_block nl80211_netlink_notifier = {
12755 .notifier_call = nl80211_netlink_notify,
12756};
12757
355199e0
JM		 12758void cfg80211_ft_event(struct net_device *netdev,
12759 struct cfg80211_ft_event_params *ft_event)
12760{
12761 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12762 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12763 struct sk_buff *msg;
12764 void *hdr;
355199e0
JM		 12765
12766 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12767
12768 if (!ft_event->target_ap)
12769 return;
12770
12771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12772 if (!msg)
12773 return;
12774
12775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12776 if (!hdr)
12777 goto out;
355199e0 12778
ae917c9f
JB		 12779 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12780 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12781 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12782 goto out;
355199e0 12783
ae917c9f
JB		 12784 if (ft_event->ies &&
12785 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12786 goto out;
12787 if (ft_event->ric_ies &&
12788 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12789 ft_event->ric_ies))
12790 goto out;
355199e0 12791
9c90a9f6 12792 genlmsg_end(msg, hdr);
355199e0 12793
68eb5503 12794 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12795 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12796 return;
12797 out:
12798 nlmsg_free(msg);
355199e0
JM		 12799}
12800EXPORT_SYMBOL(cfg80211_ft_event);
12801
5de17984
AS		 12802void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12803{
12804 struct cfg80211_registered_device *rdev;
12805 struct sk_buff *msg;
12806 void *hdr;
12807 u32 nlportid;
12808
f26cbf40 12809 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12810 if (!rdev->crit_proto_nlportid)
12811 return;
12812
12813 nlportid = rdev->crit_proto_nlportid;
12814 rdev->crit_proto_nlportid = 0;
12815
12816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12817 if (!msg)
12818 return;
12819
12820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12821 if (!hdr)
12822 goto nla_put_failure;
12823
12824 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12825 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12826 goto nla_put_failure;
12827
12828 genlmsg_end(msg, hdr);
12829
12830 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12831 return;
12832
12833 nla_put_failure:
12834 if (hdr)
12835 genlmsg_cancel(msg, hdr);
12836 nlmsg_free(msg);
12837
12838}
12839EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12840
348baf0e
JB		 12841void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12842{
12843 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12844 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12845 struct sk_buff *msg;
12846 void *hdr;
12847
12848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12849 if (!msg)
12850 return;
12851
12852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12853 if (!hdr)
12854 goto out;
12855
12856 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12857 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12858 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12859 goto out;
12860
12861 genlmsg_end(msg, hdr);
12862
12863 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12864 NL80211_MCGRP_MLME, GFP_KERNEL);
12865 return;
12866 out:
12867 nlmsg_free(msg);
12868}
12869
55682965
JB		 12870/* initialisation/exit functions */
12871
12872int nl80211_init(void)
12873{
0d63cbb5 12874 int err;
55682965 12875
2a94fe48
JB		 12876 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12877 nl80211_mcgrps);
55682965
JB		 12878 if (err)
12879 return err;
12880
026331c4
JM		 12881 err = netlink_register_notifier(&nl80211_netlink_notifier);
12882 if (err)
12883 goto err_out;
12884
55682965
JB		 12885 return 0;
12886 err_out:
12887 genl_unregister_family(&nl80211_fam);
12888 return err;
12889}
12890
12891void nl80211_exit(void)
12892{
026331c4 12893 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12894 genl_unregister_family(&nl80211_fam);
12895}
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