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mac80211: cleanup TDLS state during failed setup
[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>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
567ffc35 56 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
58};
59
60static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 66#ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
68#endif
69};
70
89a54e48
JB		 71/* returns ERR_PTR values */
72static struct wireless_dev *
73__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 74{
89a54e48
JB		 75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
79 u64 wdev_id;
80 int wiphy_idx = -1;
81 int ifidx = -1;
55682965 82
5fe231e8 83 ASSERT_RTNL();
55682965 84
89a54e48
JB		 85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
55682965 87
89a54e48
JB		 88 if (have_ifidx)
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
90 if (have_wdev_id) {
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
55682965
JB		 93 }
94
89a54e48
JB		 95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
97
98 if (wiphy_net(&rdev->wiphy) != netns)
99 continue;
100
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
102 continue;
103
89a54e48
JB		 104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
107 result = wdev;
108 break;
109 }
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
111 result = wdev;
112 break;
113 }
114 }
89a54e48
JB		 115
116 if (result)
117 break;
118 }
119
120 if (result)
121 return result;
122 return ERR_PTR(-ENODEV);
55682965
JB		 123}
124
a9455408 125static struct cfg80211_registered_device *
878d9ec7 126__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 127{
7fee4778
JB		 128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
a9455408 130
5fe231e8 131 ASSERT_RTNL();
a9455408 132
878d9ec7 133 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 136 return ERR_PTR(-EINVAL);
137
878d9ec7 138 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 139 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 141
89a54e48
JB		 142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
145 bool found = false;
146
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
148 if (tmp) {
149 /* make sure wdev exists */
89a54e48
JB		 150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
152 continue;
153 found = true;
154 break;
155 }
89a54e48
JB		 156
157 if (!found)
158 tmp = NULL;
159
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
162 rdev = tmp;
163 }
164 }
165
878d9ec7
JB		 166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 168 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 169 if (netdev) {
170 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 171 tmp = wiphy_to_rdev(
172 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 173 else
174 tmp = NULL;
175
7fee4778
JB		 176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
347 },
1d9d9213 348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
366 },
355199e0
JM		 367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 388 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 389 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
55682965
JB		 390};
391
e31b8213 392/* policy for the key attributes */
b54452b0 393static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 394 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 395 [NL80211_KEY_IDX] = { .type = NLA_U8 },
396 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 397 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 398 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 400 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 401 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
402};
403
404/* policy for the key default flags */
405static const struct nla_policy
406nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
407 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 409};
410
ff1b6e69
JB		 411/* policy for WoWLAN attributes */
412static const struct nla_policy
413nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
414 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 418 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 422 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
423};
424
425static const struct nla_policy
426nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
427 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
430 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
435 },
436 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
437 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
438 },
439 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 442};
443
be29b99a
AK		 444/* policy for coalesce rule attributes */
445static const struct nla_policy
446nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
447 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
449 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
450};
451
e5497d76
JB		 452/* policy for GTK rekey offload attributes */
453static const struct nla_policy
454nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
455 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
456 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
457 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
458};
459
a1f1c21c
LC		 460static const struct nla_policy
461nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 462 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 463 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 464 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 465};
466
97990a06
JB		 467static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
468 struct netlink_callback *cb,
469 struct cfg80211_registered_device **rdev,
470 struct wireless_dev **wdev)
a043897a 471{
97990a06 472 int err;
a043897a 473
97990a06 474 rtnl_lock();
a043897a 475
97990a06
JB		 476 if (!cb->args[0]) {
477 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
478 nl80211_fam.attrbuf, nl80211_fam.maxattr,
479 nl80211_policy);
480 if (err)
481 goto out_unlock;
67748893 482
97990a06
JB		 483 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
484 nl80211_fam.attrbuf);
485 if (IS_ERR(*wdev)) {
486 err = PTR_ERR(*wdev);
487 goto out_unlock;
488 }
f26cbf40 489 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 490 /* 0 is the first index - add 1 to parse only once */
491 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 492 cb->args[1] = (*wdev)->identifier;
493 } else {
c319d50b
JB		 494 /* subtract the 1 again here */
495 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 496 struct wireless_dev *tmp;
67748893 497
97990a06
JB		 498 if (!wiphy) {
499 err = -ENODEV;
500 goto out_unlock;
501 }
f26cbf40 502 *rdev = wiphy_to_rdev(wiphy);
97990a06 503 *wdev = NULL;
67748893 504
97990a06
JB		 505 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
506 if (tmp->identifier == cb->args[1]) {
507 *wdev = tmp;
508 break;
509 }
510 }
67748893 511
97990a06
JB		 512 if (!*wdev) {
513 err = -ENODEV;
514 goto out_unlock;
515 }
67748893
JB		 516 }
517
67748893 518 return 0;
97990a06 519 out_unlock:
67748893
JB		 520 rtnl_unlock();
521 return err;
522}
523
97990a06 524static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 525{
67748893
JB		 526 rtnl_unlock();
527}
528
f4a11bb0
JB		 529/* IE validation */
530static bool is_valid_ie_attr(const struct nlattr *attr)
531{
532 const u8 *pos;
533 int len;
534
535 if (!attr)
536 return true;
537
538 pos = nla_data(attr);
539 len = nla_len(attr);
540
541 while (len) {
542 u8 elemlen;
543
544 if (len < 2)
545 return false;
546 len -= 2;
547
548 elemlen = pos[1];
549 if (elemlen > len)
550 return false;
551
552 len -= elemlen;
553 pos += 2 + elemlen;
554 }
555
556 return true;
557}
558
55682965 559/* message building helper */
15e47304 560static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 561 int flags, u8 cmd)
562{
563 /* since there is no private header just add the generic one */
15e47304 564 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 565}
566
5dab3b8a 567static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 568 struct ieee80211_channel *chan,
569 bool large)
5dab3b8a 570{
ea077c1c
RL		 571 /* Some channels must be completely excluded from the
572 * list to protect old user-space tools from breaking
573 */
574 if (!large && chan->flags &
575 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
576 return 0;
577
9360ffd1
DM		 578 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
579 chan->center_freq))
580 goto nla_put_failure;
5dab3b8a 581
9360ffd1
DM		 582 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
583 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
584 goto nla_put_failure;
8fe02e16
LR		 585 if (chan->flags & IEEE80211_CHAN_NO_IR) {
586 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
587 goto nla_put_failure;
588 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
589 goto nla_put_failure;
590 }
cdc89b97
JB		 591 if (chan->flags & IEEE80211_CHAN_RADAR) {
592 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
593 goto nla_put_failure;
594 if (large) {
595 u32 time;
596
597 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
598
599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
600 chan->dfs_state))
601 goto nla_put_failure;
602 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
603 time))
604 goto nla_put_failure;
089027e5
JD		 605 if (nla_put_u32(msg,
606 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
607 chan->dfs_cac_ms))
608 goto nla_put_failure;
cdc89b97
JB		 609 }
610 }
5dab3b8a 611
fe1abafd
JB		 612 if (large) {
613 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
614 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
615 goto nla_put_failure;
616 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
617 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
618 goto nla_put_failure;
619 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
620 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
621 goto nla_put_failure;
622 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
623 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
624 goto nla_put_failure;
570dbde1
DS		 625 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
626 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
627 goto nla_put_failure;
628 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
630 goto nla_put_failure;
ea077c1c
RL		 631 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
633 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
636 goto nla_put_failure;
fe1abafd
JB		 637 }
638
9360ffd1
DM		 639 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
640 DBM_TO_MBM(chan->max_power)))
641 goto nla_put_failure;
5dab3b8a
LR		 642
643 return 0;
644
645 nla_put_failure:
646 return -ENOBUFS;
647}
648
55682965
JB		 649/* netlink command implementations */
650
b9454e83
JB		 651struct key_parse {
652 struct key_params p;
653 int idx;
e31b8213 654 int type;
b9454e83 655 bool def, defmgmt;
dbd2fd65 656 bool def_uni, def_multi;
b9454e83
JB		 657};
658
659static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
660{
661 struct nlattr *tb[NL80211_KEY_MAX + 1];
662 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
663 nl80211_key_policy);
664 if (err)
665 return err;
666
667 k->def = !!tb[NL80211_KEY_DEFAULT];
668 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
669
dbd2fd65
JB		 670 if (k->def) {
671 k->def_uni = true;
672 k->def_multi = true;
673 }
674 if (k->defmgmt)
675 k->def_multi = true;
676
b9454e83
JB		 677 if (tb[NL80211_KEY_IDX])
678 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
679
680 if (tb[NL80211_KEY_DATA]) {
681 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
682 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
683 }
684
685 if (tb[NL80211_KEY_SEQ]) {
686 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
687 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
688 }
689
690 if (tb[NL80211_KEY_CIPHER])
691 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
692
e31b8213
JB		 693 if (tb[NL80211_KEY_TYPE]) {
694 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
695 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
696 return -EINVAL;
697 }
698
dbd2fd65
JB		 699 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
700 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 701 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
702 tb[NL80211_KEY_DEFAULT_TYPES],
703 nl80211_key_default_policy);
dbd2fd65
JB		 704 if (err)
705 return err;
706
707 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
708 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
709 }
710
b9454e83
JB		 711 return 0;
712}
713
714static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
715{
716 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
717 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
718 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
719 }
720
721 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
722 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
723 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
724 }
725
726 if (info->attrs[NL80211_ATTR_KEY_IDX])
727 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
728
729 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
730 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
731
732 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
733 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
734
dbd2fd65
JB		 735 if (k->def) {
736 k->def_uni = true;
737 k->def_multi = true;
738 }
739 if (k->defmgmt)
740 k->def_multi = true;
741
e31b8213
JB		 742 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
743 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
744 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
745 return -EINVAL;
746 }
747
dbd2fd65
JB		 748 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
749 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
750 int err = nla_parse_nested(
751 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
752 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
753 nl80211_key_default_policy);
754 if (err)
755 return err;
756
757 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
758 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
759 }
760
b9454e83
JB		 761 return 0;
762}
763
764static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
765{
766 int err;
767
768 memset(k, 0, sizeof(*k));
769 k->idx = -1;
e31b8213 770 k->type = -1;
b9454e83
JB		 771
772 if (info->attrs[NL80211_ATTR_KEY])
773 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
774 else
775 err = nl80211_parse_key_old(info, k);
776
777 if (err)
778 return err;
779
780 if (k->def && k->defmgmt)
781 return -EINVAL;
782
dbd2fd65
JB		 783 if (k->defmgmt) {
784 if (k->def_uni || !k->def_multi)
785 return -EINVAL;
786 }
787
b9454e83
JB		 788 if (k->idx != -1) {
789 if (k->defmgmt) {
790 if (k->idx < 4 || k->idx > 5)
791 return -EINVAL;
792 } else if (k->def) {
793 if (k->idx < 0 || k->idx > 3)
794 return -EINVAL;
795 } else {
796 if (k->idx < 0 || k->idx > 5)
797 return -EINVAL;
798 }
799 }
800
801 return 0;
802}
803
fffd0934
JB		 804static struct cfg80211_cached_keys *
805nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 806 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 807{
808 struct key_parse parse;
809 struct nlattr *key;
810 struct cfg80211_cached_keys *result;
811 int rem, err, def = 0;
812
813 result = kzalloc(sizeof(*result), GFP_KERNEL);
814 if (!result)
815 return ERR_PTR(-ENOMEM);
816
817 result->def = -1;
818 result->defmgmt = -1;
819
820 nla_for_each_nested(key, keys, rem) {
821 memset(&parse, 0, sizeof(parse));
822 parse.idx = -1;
823
824 err = nl80211_parse_key_new(key, &parse);
825 if (err)
826 goto error;
827 err = -EINVAL;
828 if (!parse.p.key)
829 goto error;
830 if (parse.idx < 0 || parse.idx > 4)
831 goto error;
832 if (parse.def) {
833 if (def)
834 goto error;
835 def = 1;
836 result->def = parse.idx;
dbd2fd65
JB		 837 if (!parse.def_uni || !parse.def_multi)
838 goto error;
fffd0934
JB		 839 } else if (parse.defmgmt)
840 goto error;
841 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 842 parse.idx, false, NULL);
fffd0934
JB		 843 if (err)
844 goto error;
845 result->params[parse.idx].cipher = parse.p.cipher;
846 result->params[parse.idx].key_len = parse.p.key_len;
847 result->params[parse.idx].key = result->data[parse.idx];
848 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 849
850 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
851 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
852 if (no_ht)
853 *no_ht = true;
854 }
fffd0934
JB		 855 }
856
857 return result;
858 error:
859 kfree(result);
860 return ERR_PTR(err);
861}
862
863static int nl80211_key_allowed(struct wireless_dev *wdev)
864{
865 ASSERT_WDEV_LOCK(wdev);
866
fffd0934
JB		 867 switch (wdev->iftype) {
868 case NL80211_IFTYPE_AP:
869 case NL80211_IFTYPE_AP_VLAN:
074ac8df 870 case NL80211_IFTYPE_P2P_GO:
ff973af7 871 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 872 break;
873 case NL80211_IFTYPE_ADHOC:
fffd0934 874 case NL80211_IFTYPE_STATION:
074ac8df 875 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 876 if (!wdev->current_bss)
fffd0934
JB		 877 return -ENOLINK;
878 break;
879 default:
880 return -EINVAL;
881 }
882
883 return 0;
884}
885
664834de
JM		 886static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
887 struct nlattr *tb)
888{
889 struct ieee80211_channel *chan;
890
891 if (tb == NULL)
892 return NULL;
893 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
894 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
895 return NULL;
896 return chan;
897}
898
7527a782
JB		 899static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
900{
901 struct nlattr *nl_modes = nla_nest_start(msg, attr);
902 int i;
903
904 if (!nl_modes)
905 goto nla_put_failure;
906
907 i = 0;
908 while (ifmodes) {
9360ffd1
DM		 909 if ((ifmodes & 1) && nla_put_flag(msg, i))
910 goto nla_put_failure;
7527a782
JB		 911 ifmodes >>= 1;
912 i++;
913 }
914
915 nla_nest_end(msg, nl_modes);
916 return 0;
917
918nla_put_failure:
919 return -ENOBUFS;
920}
921
922static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 923 struct sk_buff *msg,
924 bool large)
7527a782
JB		 925{
926 struct nlattr *nl_combis;
927 int i, j;
928
929 nl_combis = nla_nest_start(msg,
930 NL80211_ATTR_INTERFACE_COMBINATIONS);
931 if (!nl_combis)
932 goto nla_put_failure;
933
934 for (i = 0; i < wiphy->n_iface_combinations; i++) {
935 const struct ieee80211_iface_combination *c;
936 struct nlattr *nl_combi, *nl_limits;
937
938 c = &wiphy->iface_combinations[i];
939
940 nl_combi = nla_nest_start(msg, i + 1);
941 if (!nl_combi)
942 goto nla_put_failure;
943
944 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
945 if (!nl_limits)
946 goto nla_put_failure;
947
948 for (j = 0; j < c->n_limits; j++) {
949 struct nlattr *nl_limit;
950
951 nl_limit = nla_nest_start(msg, j + 1);
952 if (!nl_limit)
953 goto nla_put_failure;
9360ffd1
DM		 954 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
955 c->limits[j].max))
956 goto nla_put_failure;
7527a782
JB		 957 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
958 c->limits[j].types))
959 goto nla_put_failure;
960 nla_nest_end(msg, nl_limit);
961 }
962
963 nla_nest_end(msg, nl_limits);
964
9360ffd1
DM		 965 if (c->beacon_int_infra_match &&
966 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
967 goto nla_put_failure;
968 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
969 c->num_different_channels) ||
970 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
971 c->max_interfaces))
972 goto nla_put_failure;
cdc89b97 973 if (large &&
8c48b50a
FF		 974 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
975 c->radar_detect_widths) ||
976 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
977 c->radar_detect_regions)))
cdc89b97 978 goto nla_put_failure;
7527a782
JB		 979
980 nla_nest_end(msg, nl_combi);
981 }
982
983 nla_nest_end(msg, nl_combis);
984
985 return 0;
986nla_put_failure:
987 return -ENOBUFS;
988}
989
3713b4e3 990#ifdef CONFIG_PM
b56cf720
JB		 991static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
992 struct sk_buff *msg)
993{
964dc9e2 994 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 995 struct nlattr *nl_tcp;
996
997 if (!tcp)
998 return 0;
999
1000 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1001 if (!nl_tcp)
1002 return -ENOBUFS;
1003
1004 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1005 tcp->data_payload_max))
1006 return -ENOBUFS;
1007
1008 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1009 tcp->data_payload_max))
1010 return -ENOBUFS;
1011
1012 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1013 return -ENOBUFS;
1014
1015 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1016 sizeof(*tcp->tok), tcp->tok))
1017 return -ENOBUFS;
1018
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1020 tcp->data_interval_max))
1021 return -ENOBUFS;
1022
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1024 tcp->wake_payload_max))
1025 return -ENOBUFS;
1026
1027 nla_nest_end(msg, nl_tcp);
1028 return 0;
1029}
1030
3713b4e3 1031static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1032 struct cfg80211_registered_device *rdev,
b56cf720 1033 bool large)
55682965 1034{
3713b4e3 1035 struct nlattr *nl_wowlan;
55682965 1036
1b8ec87a 1037 if (!rdev->wiphy.wowlan)
3713b4e3 1038 return 0;
55682965 1039
3713b4e3
JB		 1040 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1041 if (!nl_wowlan)
1042 return -ENOBUFS;
9360ffd1 1043
1b8ec87a 1044 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1045 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1046 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1047 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1048 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1050 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1052 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1060 return -ENOBUFS;
9360ffd1 1061
1b8ec87a 1062 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1063 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1064 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1065 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1066 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1067 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1068 };
9360ffd1 1069
3713b4e3
JB		 1070 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1071 sizeof(pat), &pat))
1072 return -ENOBUFS;
1073 }
9360ffd1 1074
1b8ec87a 1075 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1076 return -ENOBUFS;
1077
3713b4e3 1078 nla_nest_end(msg, nl_wowlan);
9360ffd1 1079
3713b4e3
JB		 1080 return 0;
1081}
1082#endif
9360ffd1 1083
be29b99a 1084static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1085 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1086{
1087 struct nl80211_coalesce_rule_support rule;
1088
1b8ec87a 1089 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1090 return 0;
1091
1b8ec87a
ZG		 1092 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1093 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1094 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1095 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1096 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1097 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1098
1099 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1100 return -ENOBUFS;
1101
1102 return 0;
1103}
1104
3713b4e3
JB		 1105static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1106 struct ieee80211_supported_band *sband)
1107{
1108 struct nlattr *nl_rates, *nl_rate;
1109 struct ieee80211_rate *rate;
1110 int i;
87bbbe22 1111
3713b4e3
JB		 1112 /* add HT info */
1113 if (sband->ht_cap.ht_supported &&
1114 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1115 sizeof(sband->ht_cap.mcs),
1116 &sband->ht_cap.mcs) ||
1117 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1118 sband->ht_cap.cap) ||
1119 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1120 sband->ht_cap.ampdu_factor) ||
1121 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1122 sband->ht_cap.ampdu_density)))
1123 return -ENOBUFS;
afe0cbf8 1124
3713b4e3
JB		 1125 /* add VHT info */
1126 if (sband->vht_cap.vht_supported &&
1127 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1128 sizeof(sband->vht_cap.vht_mcs),
1129 &sband->vht_cap.vht_mcs) ||
1130 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1131 sband->vht_cap.cap)))
1132 return -ENOBUFS;
f59ac048 1133
3713b4e3
JB		 1134 /* add bitrates */
1135 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1136 if (!nl_rates)
1137 return -ENOBUFS;
ee688b00 1138
3713b4e3
JB		 1139 for (i = 0; i < sband->n_bitrates; i++) {
1140 nl_rate = nla_nest_start(msg, i);
1141 if (!nl_rate)
1142 return -ENOBUFS;
ee688b00 1143
3713b4e3
JB		 1144 rate = &sband->bitrates[i];
1145 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1146 rate->bitrate))
1147 return -ENOBUFS;
1148 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1149 nla_put_flag(msg,
1150 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1151 return -ENOBUFS;
ee688b00 1152
3713b4e3
JB		 1153 nla_nest_end(msg, nl_rate);
1154 }
d51626df 1155
3713b4e3 1156 nla_nest_end(msg, nl_rates);
bf0c111e 1157
3713b4e3
JB		 1158 return 0;
1159}
ee688b00 1160
3713b4e3
JB		 1161static int
1162nl80211_send_mgmt_stypes(struct sk_buff *msg,
1163 const struct ieee80211_txrx_stypes *mgmt_stypes)
1164{
1165 u16 stypes;
1166 struct nlattr *nl_ftypes, *nl_ifs;
1167 enum nl80211_iftype ift;
1168 int i;
ee688b00 1169
3713b4e3
JB		 1170 if (!mgmt_stypes)
1171 return 0;
5dab3b8a 1172
3713b4e3
JB		 1173 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1174 if (!nl_ifs)
1175 return -ENOBUFS;
e2f367f2 1176
3713b4e3
JB		 1177 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1178 nl_ftypes = nla_nest_start(msg, ift);
1179 if (!nl_ftypes)
1180 return -ENOBUFS;
1181 i = 0;
1182 stypes = mgmt_stypes[ift].tx;
1183 while (stypes) {
1184 if ((stypes & 1) &&
1185 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1186 (i << 4) | IEEE80211_FTYPE_MGMT))
1187 return -ENOBUFS;
1188 stypes >>= 1;
1189 i++;
ee688b00 1190 }
3713b4e3
JB		 1191 nla_nest_end(msg, nl_ftypes);
1192 }
ee688b00 1193
3713b4e3 1194 nla_nest_end(msg, nl_ifs);
ee688b00 1195
3713b4e3
JB		 1196 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1197 if (!nl_ifs)
1198 return -ENOBUFS;
ee688b00 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].rx;
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++;
1213 }
1214 nla_nest_end(msg, nl_ftypes);
1215 }
1216 nla_nest_end(msg, nl_ifs);
ee688b00 1217
3713b4e3
JB		 1218 return 0;
1219}
ee688b00 1220
86e8cf98
JB		 1221struct nl80211_dump_wiphy_state {
1222 s64 filter_wiphy;
1223 long start;
1224 long split_start, band_start, chan_start;
1225 bool split;
1226};
1227
1b8ec87a 1228static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1229 enum nl80211_commands cmd,
3713b4e3 1230 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1231 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1232{
1233 void *hdr;
1234 struct nlattr *nl_bands, *nl_band;
1235 struct nlattr *nl_freqs, *nl_freq;
1236 struct nlattr *nl_cmds;
1237 enum ieee80211_band band;
1238 struct ieee80211_channel *chan;
1239 int i;
1240 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1241 rdev->wiphy.mgmt_stypes;
fe1abafd 1242 u32 features;
ee688b00 1243
3bb20556 1244 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1245 if (!hdr)
1246 return -ENOBUFS;
ee688b00 1247
86e8cf98
JB		 1248 if (WARN_ON(!state))
1249 return -EINVAL;
ee688b00 1250
1b8ec87a 1251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1252 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1253 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1254 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1255 cfg80211_rdev_list_generation))
8fdc621d
JB		 1256 goto nla_put_failure;
1257
3bb20556
JB		 1258 if (cmd != NL80211_CMD_NEW_WIPHY)
1259 goto finish;
1260
86e8cf98 1261 switch (state->split_start) {
3713b4e3
JB		 1262 case 0:
1263 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1264 rdev->wiphy.retry_short) ||
3713b4e3 1265 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1266 rdev->wiphy.retry_long) ||
3713b4e3 1267 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1268 rdev->wiphy.frag_threshold) ||
3713b4e3 1269 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1270 rdev->wiphy.rts_threshold) ||
3713b4e3 1271 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1272 rdev->wiphy.coverage_class) ||
3713b4e3 1273 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1274 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1275 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1276 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1277 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1278 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1279 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1280 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1281 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1282 rdev->wiphy.max_match_sets))
9360ffd1 1283 goto nla_put_failure;
3713b4e3 1284
1b8ec87a 1285 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1286 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1287 goto nla_put_failure;
1b8ec87a 1288 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1289 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1290 goto nla_put_failure;
1b8ec87a 1291 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1292 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1293 goto nla_put_failure;
1b8ec87a 1294 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1295 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1296 goto nla_put_failure;
1b8ec87a 1297 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1298 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1299 goto nla_put_failure;
1b8ec87a 1300 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1301 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1302 goto nla_put_failure;
86e8cf98
JB		 1303 state->split_start++;
1304 if (state->split)
3713b4e3
JB		 1305 break;
1306 case 1:
1307 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1308 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1309 rdev->wiphy.cipher_suites))
3713b4e3 1310 goto nla_put_failure;
4745fc09 1311
3713b4e3 1312 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1313 rdev->wiphy.max_num_pmkids))
3713b4e3 1314 goto nla_put_failure;
b23aa676 1315
1b8ec87a 1316 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1317 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1318 goto nla_put_failure;
b23aa676 1319
3713b4e3 1320 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1321 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1322 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1323 rdev->wiphy.available_antennas_rx))
9360ffd1 1324 goto nla_put_failure;
b23aa676 1325
1b8ec87a 1326 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1327 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1328 rdev->wiphy.probe_resp_offload))
3713b4e3 1329 goto nla_put_failure;
8fdc621d 1330
1b8ec87a
ZG		 1331 if ((rdev->wiphy.available_antennas_tx ||
1332 rdev->wiphy.available_antennas_rx) &&
1333 rdev->ops->get_antenna) {
3713b4e3
JB		 1334 u32 tx_ant = 0, rx_ant = 0;
1335 int res;
1b8ec87a 1336 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1337 if (!res) {
1338 if (nla_put_u32(msg,
1339 NL80211_ATTR_WIPHY_ANTENNA_TX,
1340 tx_ant) ||
1341 nla_put_u32(msg,
1342 NL80211_ATTR_WIPHY_ANTENNA_RX,
1343 rx_ant))
1344 goto nla_put_failure;
1345 }
1346 }
a293911d 1347
86e8cf98
JB		 1348 state->split_start++;
1349 if (state->split)
3713b4e3
JB		 1350 break;
1351 case 2:
1352 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1353 rdev->wiphy.interface_modes))
3713b4e3 1354 goto nla_put_failure;
86e8cf98
JB		 1355 state->split_start++;
1356 if (state->split)
3713b4e3
JB		 1357 break;
1358 case 3:
1359 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1360 if (!nl_bands)
1361 goto nla_put_failure;
f7ca38df 1362
86e8cf98
JB		 1363 for (band = state->band_start;
1364 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1365 struct ieee80211_supported_band *sband;
2e161f78 1366
1b8ec87a 1367 sband = rdev->wiphy.bands[band];
2e161f78 1368
3713b4e3
JB		 1369 if (!sband)
1370 continue;
1371
1372 nl_band = nla_nest_start(msg, band);
1373 if (!nl_band)
2e161f78 1374 goto nla_put_failure;
3713b4e3 1375
86e8cf98 1376 switch (state->chan_start) {
3713b4e3
JB		 1377 case 0:
1378 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1379 goto nla_put_failure;
86e8cf98
JB		 1380 state->chan_start++;
1381 if (state->split)
3713b4e3
JB		 1382 break;
1383 default:
1384 /* add frequencies */
1385 nl_freqs = nla_nest_start(
1386 msg, NL80211_BAND_ATTR_FREQS);
1387 if (!nl_freqs)
1388 goto nla_put_failure;
1389
86e8cf98 1390 for (i = state->chan_start - 1;
3713b4e3
JB		 1391 i < sband->n_channels;
1392 i++) {
1393 nl_freq = nla_nest_start(msg, i);
1394 if (!nl_freq)
1395 goto nla_put_failure;
1396
1397 chan = &sband->channels[i];
1398
86e8cf98
JB		 1399 if (nl80211_msg_put_channel(
1400 msg, chan,
1401 state->split))
3713b4e3
JB		 1402 goto nla_put_failure;
1403
1404 nla_nest_end(msg, nl_freq);
86e8cf98 1405 if (state->split)
3713b4e3
JB		 1406 break;
1407 }
1408 if (i < sband->n_channels)
86e8cf98 1409 state->chan_start = i + 2;
3713b4e3 1410 else
86e8cf98 1411 state->chan_start = 0;
3713b4e3
JB		 1412 nla_nest_end(msg, nl_freqs);
1413 }
1414
1415 nla_nest_end(msg, nl_band);
1416
86e8cf98 1417 if (state->split) {
3713b4e3 1418 /* start again here */
86e8cf98 1419 if (state->chan_start)
3713b4e3
JB		 1420 band--;
1421 break;
2e161f78 1422 }
2e161f78 1423 }
3713b4e3 1424 nla_nest_end(msg, nl_bands);
2e161f78 1425
3713b4e3 1426 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1427 state->band_start = band + 1;
3713b4e3 1428 else
86e8cf98 1429 state->band_start = 0;
74b70a4e 1430
3713b4e3 1431 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1432 if (state->band_start == 0 && state->chan_start == 0)
1433 state->split_start++;
1434 if (state->split)
3713b4e3
JB		 1435 break;
1436 case 4:
1437 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1438 if (!nl_cmds)
2e161f78
JB		 1439 goto nla_put_failure;
1440
3713b4e3
JB		 1441 i = 0;
1442#define CMD(op, n) \
1443 do { \
1b8ec87a 1444 if (rdev->ops->op) { \
3713b4e3
JB		 1445 i++; \
1446 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1447 goto nla_put_failure; \
1448 } \
1449 } while (0)
1450
1451 CMD(add_virtual_intf, NEW_INTERFACE);
1452 CMD(change_virtual_intf, SET_INTERFACE);
1453 CMD(add_key, NEW_KEY);
1454 CMD(start_ap, START_AP);
1455 CMD(add_station, NEW_STATION);
1456 CMD(add_mpath, NEW_MPATH);
1457 CMD(update_mesh_config, SET_MESH_CONFIG);
1458 CMD(change_bss, SET_BSS);
1459 CMD(auth, AUTHENTICATE);
1460 CMD(assoc, ASSOCIATE);
1461 CMD(deauth, DEAUTHENTICATE);
1462 CMD(disassoc, DISASSOCIATE);
1463 CMD(join_ibss, JOIN_IBSS);
1464 CMD(join_mesh, JOIN_MESH);
1465 CMD(set_pmksa, SET_PMKSA);
1466 CMD(del_pmksa, DEL_PMKSA);
1467 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1468 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1469 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1470 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1471 CMD(mgmt_tx, FRAME);
1472 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1473 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1474 i++;
1475 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1476 goto nla_put_failure;
2e161f78 1477 }
1b8ec87a
ZG		 1478 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1479 rdev->ops->join_mesh) {
3713b4e3
JB		 1480 i++;
1481 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1482 goto nla_put_failure;
1483 }
1484 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1486 CMD(tdls_mgmt, TDLS_MGMT);
1487 CMD(tdls_oper, TDLS_OPER);
1488 }
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1490 CMD(sched_scan_start, START_SCHED_SCAN);
1491 CMD(probe_client, PROBE_CLIENT);
1492 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1494 i++;
1495 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1496 goto nla_put_failure;
1497 }
1498 CMD(start_p2p_device, START_P2P_DEVICE);
1499 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1500 if (state->split) {
5de17984
AS		 1501 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1502 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1503 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1504 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1505 }
fa9ffc74 1506 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1507
3713b4e3
JB		 1508#ifdef CONFIG_NL80211_TESTMODE
1509 CMD(testmode_cmd, TESTMODE);
1510#endif
ff1b6e69 1511
3713b4e3 1512#undef CMD
ff1b6e69 1513
1b8ec87a 1514 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1515 i++;
1516 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1517 goto nla_put_failure;
ff1b6e69
JB		 1518 }
1519
1b8ec87a 1520 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1521 i++;
1522 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1523 goto nla_put_failure;
1524 }
1525
1526 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1527 state->split_start++;
1528 if (state->split)
3713b4e3
JB		 1529 break;
1530 case 5:
1b8ec87a
ZG		 1531 if (rdev->ops->remain_on_channel &&
1532 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1533 nla_put_u32(msg,
1534 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1535 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1536 goto nla_put_failure;
1537
1b8ec87a 1538 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1539 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1540 goto nla_put_failure;
1541
1542 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1543 goto nla_put_failure;
86e8cf98
JB		 1544 state->split_start++;
1545 if (state->split)
3713b4e3
JB		 1546 break;
1547 case 6:
1548#ifdef CONFIG_PM
1b8ec87a 1549 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1550 goto nla_put_failure;
86e8cf98
JB		 1551 state->split_start++;
1552 if (state->split)
3713b4e3
JB		 1553 break;
1554#else
86e8cf98 1555 state->split_start++;
dfb89c56 1556#endif
3713b4e3
JB		 1557 case 7:
1558 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1559 rdev->wiphy.software_iftypes))
3713b4e3 1560 goto nla_put_failure;
ff1b6e69 1561
1b8ec87a 1562 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1563 state->split))
3713b4e3 1564 goto nla_put_failure;
7527a782 1565
86e8cf98
JB		 1566 state->split_start++;
1567 if (state->split)
3713b4e3
JB		 1568 break;
1569 case 8:
1b8ec87a 1570 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1571 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1572 rdev->wiphy.ap_sme_capa))
3713b4e3 1573 goto nla_put_failure;
7527a782 1574
1b8ec87a 1575 features = rdev->wiphy.features;
fe1abafd
JB		 1576 /*
1577 * We can only add the per-channel limit information if the
1578 * dump is split, otherwise it makes it too big. Therefore
1579 * only advertise it in that case.
1580 */
86e8cf98 1581 if (state->split)
fe1abafd
JB		 1582 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1583 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1584 goto nla_put_failure;
562a7480 1585
1b8ec87a 1586 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1587 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1588 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1589 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1590 goto nla_put_failure;
1f074bd8 1591
1b8ec87a
ZG		 1592 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1593 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1594 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1595 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1596 goto nla_put_failure;
7e7c8926 1597
3713b4e3
JB		 1598 /*
1599 * Any information below this point is only available to
1600 * applications that can deal with it being split. This
1601 * helps ensure that newly added capabilities don't break
1602 * older tools by overrunning their buffers.
1603 *
1604 * We still increment split_start so that in the split
1605 * case we'll continue with more data in the next round,
1606 * but break unconditionally so unsplit data stops here.
1607 */
86e8cf98 1608 state->split_start++;
3713b4e3
JB		 1609 break;
1610 case 9:
1b8ec87a 1611 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1612 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1613 rdev->wiphy.extended_capabilities_len,
1614 rdev->wiphy.extended_capabilities) ||
fe1abafd 1615 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1616 rdev->wiphy.extended_capabilities_len,
1617 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1618 goto nla_put_failure;
a50df0c4 1619
1b8ec87a 1620 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1621 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1622 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1623 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1624 goto nla_put_failure;
1625
be29b99a
AK		 1626 state->split_start++;
1627 break;
1628 case 10:
1b8ec87a 1629 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1630 goto nla_put_failure;
1631
1b8ec87a 1632 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1633 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1634 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1635 goto nla_put_failure;
b43504cf 1636
1b8ec87a 1637 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1638 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1639 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1640 goto nla_put_failure;
1641
ad7e718c
JB		 1642 state->split_start++;
1643 break;
1644 case 11:
1b8ec87a 1645 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1646 const struct nl80211_vendor_cmd_info *info;
1647 struct nlattr *nested;
1648
1649 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1650 if (!nested)
1651 goto nla_put_failure;
1652
1b8ec87a
ZG		 1653 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1654 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1655 if (nla_put(msg, i + 1, sizeof(*info), info))
1656 goto nla_put_failure;
1657 }
1658 nla_nest_end(msg, nested);
1659 }
1660
1b8ec87a 1661 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1662 const struct nl80211_vendor_cmd_info *info;
1663 struct nlattr *nested;
ad7e718c 1664
567ffc35
JB		 1665 nested = nla_nest_start(msg,
1666 NL80211_ATTR_VENDOR_EVENTS);
1667 if (!nested)
ad7e718c 1668 goto nla_put_failure;
567ffc35 1669
1b8ec87a
ZG		 1670 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1671 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1672 if (nla_put(msg, i + 1, sizeof(*info), info))
1673 goto nla_put_failure;
1674 }
1675 nla_nest_end(msg, nested);
1676 }
9a774c78
AO		 1677 state->split_start++;
1678 break;
1679 case 12:
1680 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1681 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1682 rdev->wiphy.max_num_csa_counters))
1683 goto nla_put_failure;
01e0daa4 1684
3713b4e3 1685 /* done */
86e8cf98 1686 state->split_start = 0;
3713b4e3
JB		 1687 break;
1688 }
3bb20556 1689 finish:
55682965
JB		 1690 return genlmsg_end(msg, hdr);
1691
1692 nla_put_failure:
bc3ed28c
TG		 1693 genlmsg_cancel(msg, hdr);
1694 return -EMSGSIZE;
55682965
JB		 1695}
1696
86e8cf98
JB		 1697static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1698 struct netlink_callback *cb,
1699 struct nl80211_dump_wiphy_state *state)
1700{
1701 struct nlattr **tb = nl80211_fam.attrbuf;
1702 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1703 tb, nl80211_fam.maxattr, nl80211_policy);
1704 /* ignore parse errors for backward compatibility */
1705 if (ret)
1706 return 0;
1707
1708 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1709 if (tb[NL80211_ATTR_WIPHY])
1710 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1711 if (tb[NL80211_ATTR_WDEV])
1712 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1713 if (tb[NL80211_ATTR_IFINDEX]) {
1714 struct net_device *netdev;
1715 struct cfg80211_registered_device *rdev;
1716 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1717
7f2b8562 1718 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1719 if (!netdev)
1720 return -ENODEV;
1721 if (netdev->ieee80211_ptr) {
f26cbf40 1722 rdev = wiphy_to_rdev(
86e8cf98
JB		 1723 netdev->ieee80211_ptr->wiphy);
1724 state->filter_wiphy = rdev->wiphy_idx;
1725 }
86e8cf98
JB		 1726 }
1727
1728 return 0;
1729}
1730
55682965
JB		 1731static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1732{
645e77de 1733 int idx = 0, ret;
86e8cf98 1734 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1735 struct cfg80211_registered_device *rdev;
3a5a423b 1736
5fe231e8 1737 rtnl_lock();
86e8cf98
JB		 1738 if (!state) {
1739 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1740 if (!state) {
1741 rtnl_unlock();
86e8cf98 1742 return -ENOMEM;
3713b4e3 1743 }
86e8cf98
JB		 1744 state->filter_wiphy = -1;
1745 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1746 if (ret) {
1747 kfree(state);
1748 rtnl_unlock();
1749 return ret;
3713b4e3 1750 }
86e8cf98 1751 cb->args[0] = (long)state;
3713b4e3
JB		 1752 }
1753
1b8ec87a
ZG		 1754 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1755 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1756 continue;
86e8cf98 1757 if (++idx <= state->start)
55682965 1758 continue;
86e8cf98 1759 if (state->filter_wiphy != -1 &&
1b8ec87a 1760 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1761 continue;
1762 /* attempt to fit multiple wiphy data chunks into the skb */
1763 do {
3bb20556
JB		 1764 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1765 skb,
3713b4e3
JB		 1766 NETLINK_CB(cb->skb).portid,
1767 cb->nlh->nlmsg_seq,
86e8cf98 1768 NLM_F_MULTI, state);
3713b4e3
JB		 1769 if (ret < 0) {
1770 /*
1771 * If sending the wiphy data didn't fit (ENOBUFS
1772 * or EMSGSIZE returned), this SKB is still
1773 * empty (so it's not too big because another
1774 * wiphy dataset is already in the skb) and
1775 * we've not tried to adjust the dump allocation
1776 * yet ... then adjust the alloc size to be
1777 * bigger, and return 1 but with the empty skb.
1778 * This results in an empty message being RX'ed
1779 * in userspace, but that is ignored.
1780 *
1781 * We can then retry with the larger buffer.
1782 */
1783 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1784 !skb->len && !state->split &&
3713b4e3
JB		 1785 cb->min_dump_alloc < 4096) {
1786 cb->min_dump_alloc = 4096;
f12cb289 1787 state->split_start = 0;
d98cae64 1788 rtnl_unlock();
3713b4e3
JB		 1789 return 1;
1790 }
1791 idx--;
1792 break;
645e77de 1793 }
86e8cf98 1794 } while (state->split_start > 0);
3713b4e3 1795 break;
55682965 1796 }
5fe231e8 1797 rtnl_unlock();
55682965 1798
86e8cf98 1799 state->start = idx;
55682965
JB		 1800
1801 return skb->len;
1802}
1803
86e8cf98
JB		 1804static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1805{
1806 kfree((void *)cb->args[0]);
1807 return 0;
1808}
1809
55682965
JB		 1810static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1811{
1812 struct sk_buff *msg;
1b8ec87a 1813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1814 struct nl80211_dump_wiphy_state state = {};
55682965 1815
645e77de 1816 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1817 if (!msg)
4c476991 1818 return -ENOMEM;
55682965 1819
3bb20556
JB		 1820 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1821 info->snd_portid, info->snd_seq, 0,
86e8cf98 1822 &state) < 0) {
4c476991
JB		 1823 nlmsg_free(msg);
1824 return -ENOBUFS;
1825 }
55682965 1826
134e6375 1827 return genlmsg_reply(msg, info);
55682965
JB		 1828}
1829
31888487
JM		 1830static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1831 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1832 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1833 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1834 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1835 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1836};
1837
1838static int parse_txq_params(struct nlattr *tb[],
1839 struct ieee80211_txq_params *txq_params)
1840{
a3304b0a 1841 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1842 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1843 !tb[NL80211_TXQ_ATTR_AIFS])
1844 return -EINVAL;
1845
a3304b0a 1846 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1847 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1848 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1849 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1850 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1851
a3304b0a
JB		 1852 if (txq_params->ac >= NL80211_NUM_ACS)
1853 return -EINVAL;
1854
31888487
JM		 1855 return 0;
1856}
1857
f444de05
JB		 1858static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1859{
1860 /*
cc1d2806
JB		 1861 * You can only set the channel explicitly for WDS interfaces,
1862 * all others have their channel managed via their respective
1863 * "establish a connection" command (connect, join, ...)
1864 *
1865 * For AP/GO and mesh mode, the channel can be set with the
1866 * channel userspace API, but is only stored and passed to the
1867 * low-level driver when the AP starts or the mesh is joined.
1868 * This is for backward compatibility, userspace can also give
1869 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1870 *
1871 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1872 * whatever else is going on, so they have their own special
1873 * operation to set the monitor channel if possible.
f444de05
JB		 1874 */
1875 return !wdev ||
1876 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1877 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1878 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1879 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1880}
1881
683b6d3b
JB		 1882static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1883 struct genl_info *info,
1884 struct cfg80211_chan_def *chandef)
1885{
dbeca2ea 1886 u32 control_freq;
683b6d3b
JB		 1887
1888 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1889 return -EINVAL;
1890
1891 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1892
1893 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1894 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1895 chandef->center_freq1 = control_freq;
1896 chandef->center_freq2 = 0;
683b6d3b
JB		 1897
1898 /* Primary channel not allowed */
1899 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1900 return -EINVAL;
1901
3d9d1d66
JB		 1902 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1903 enum nl80211_channel_type chantype;
1904
1905 chantype = nla_get_u32(
1906 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1907
1908 switch (chantype) {
1909 case NL80211_CHAN_NO_HT:
1910 case NL80211_CHAN_HT20:
1911 case NL80211_CHAN_HT40PLUS:
1912 case NL80211_CHAN_HT40MINUS:
1913 cfg80211_chandef_create(chandef, chandef->chan,
1914 chantype);
1915 break;
1916 default:
1917 return -EINVAL;
1918 }
1919 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1920 chandef->width =
1921 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1922 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1923 chandef->center_freq1 =
1924 nla_get_u32(
1925 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1926 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1927 chandef->center_freq2 =
1928 nla_get_u32(
1929 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1930 }
1931
9f5e8f6e 1932 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1933 return -EINVAL;
1934
9f5e8f6e
JB		 1935 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1936 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1937 return -EINVAL;
1938
2f301ab2
SW		 1939 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1940 chandef->width == NL80211_CHAN_WIDTH_10) &&
1941 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1942 return -EINVAL;
1943
683b6d3b
JB		 1944 return 0;
1945}
1946
f444de05 1947static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1948 struct net_device *dev,
f444de05
JB		 1949 struct genl_info *info)
1950{
683b6d3b 1951 struct cfg80211_chan_def chandef;
f444de05 1952 int result;
e8c9bd5b 1953 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1954 struct wireless_dev *wdev = NULL;
e8c9bd5b 1955
e16821bc
JM		 1956 if (dev)
1957 wdev = dev->ieee80211_ptr;
f444de05
JB		 1958 if (!nl80211_can_set_dev_channel(wdev))
1959 return -EOPNOTSUPP;
e16821bc
JM		 1960 if (wdev)
1961 iftype = wdev->iftype;
f444de05 1962
683b6d3b
JB		 1963 result = nl80211_parse_chandef(rdev, info, &chandef);
1964 if (result)
1965 return result;
f444de05 1966
e8c9bd5b 1967 switch (iftype) {
aa430da4
JB		 1968 case NL80211_IFTYPE_AP:
1969 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1970 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1971 result = -EINVAL;
1972 break;
1973 }
e16821bc
JM		 1974 if (wdev->beacon_interval) {
1975 if (!dev || !rdev->ops->set_ap_chanwidth ||
1976 !(rdev->wiphy.features &
1977 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1978 result = -EBUSY;
1979 break;
1980 }
1981
1982 /* Only allow dynamic channel width changes */
1983 if (chandef.chan != wdev->preset_chandef.chan) {
1984 result = -EBUSY;
1985 break;
1986 }
1987 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1988 if (result)
1989 break;
1990 }
683b6d3b 1991 wdev->preset_chandef = chandef;
aa430da4
JB		 1992 result = 0;
1993 break;
cc1d2806 1994 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1995 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1996 break;
e8c9bd5b 1997 case NL80211_IFTYPE_MONITOR:
683b6d3b 1998 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1999 break;
aa430da4 2000 default:
e8c9bd5b 2001 result = -EINVAL;
f444de05 2002 }
f444de05
JB		 2003
2004 return result;
2005}
2006
2007static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2008{
4c476991
JB		 2009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2010 struct net_device *netdev = info->user_ptr[1];
f444de05 2011
e16821bc 2012 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2013}
2014
e8347eba
BJ		 2015static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2016{
43b19952
JB		 2017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2018 struct net_device *dev = info->user_ptr[1];
2019 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2020 const u8 *bssid;
e8347eba
BJ		 2021
2022 if (!info->attrs[NL80211_ATTR_MAC])
2023 return -EINVAL;
2024
43b19952
JB		 2025 if (netif_running(dev))
2026 return -EBUSY;
e8347eba 2027
43b19952
JB		 2028 if (!rdev->ops->set_wds_peer)
2029 return -EOPNOTSUPP;
e8347eba 2030
43b19952
JB		 2031 if (wdev->iftype != NL80211_IFTYPE_WDS)
2032 return -EOPNOTSUPP;
e8347eba
BJ		 2033
2034 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2035 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2036}
2037
2038
55682965
JB		 2039static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2040{
2041 struct cfg80211_registered_device *rdev;
f444de05
JB		 2042 struct net_device *netdev = NULL;
2043 struct wireless_dev *wdev;
a1e567c8 2044 int result = 0, rem_txq_params = 0;
31888487 2045 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2046 u32 changed;
2047 u8 retry_short = 0, retry_long = 0;
2048 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2049 u8 coverage_class = 0;
55682965 2050
5fe231e8
JB		 2051 ASSERT_RTNL();
2052
f444de05
JB		 2053 /*
2054 * Try to find the wiphy and netdev. Normally this
2055 * function shouldn't need the netdev, but this is
2056 * done for backward compatibility -- previously
2057 * setting the channel was done per wiphy, but now
2058 * it is per netdev. Previous userland like hostapd
2059 * also passed a netdev to set_wiphy, so that it is
2060 * possible to let that go to the right netdev!
2061 */
4bbf4d56 2062
f444de05
JB		 2063 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2064 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2065
7f2b8562 2066 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2067 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2068 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2069 else
f444de05 2070 netdev = NULL;
4bbf4d56
JB		 2071 }
2072
f444de05 2073 if (!netdev) {
878d9ec7
JB		 2074 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2075 info->attrs);
5fe231e8 2076 if (IS_ERR(rdev))
4c476991 2077 return PTR_ERR(rdev);
f444de05
JB		 2078 wdev = NULL;
2079 netdev = NULL;
2080 result = 0;
71fe96bf 2081 } else
f444de05 2082 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2083
2084 /*
2085 * end workaround code, by now the rdev is available
2086 * and locked, and wdev may or may not be NULL.
2087 */
4bbf4d56
JB		 2088
2089 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2090 result = cfg80211_dev_rename(
2091 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2092
4bbf4d56 2093 if (result)
7f2b8562 2094 return result;
31888487
JM		 2095
2096 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2097 struct ieee80211_txq_params txq_params;
2098 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2099
7f2b8562
YX		 2100 if (!rdev->ops->set_txq_params)
2101 return -EOPNOTSUPP;
31888487 2102
7f2b8562
YX		 2103 if (!netdev)
2104 return -EINVAL;
f70f01c2 2105
133a3ff2 2106 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2107 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2108 return -EINVAL;
133a3ff2 2109
7f2b8562
YX		 2110 if (!netif_running(netdev))
2111 return -ENETDOWN;
2b5f8b0b 2112
31888487
JM		 2113 nla_for_each_nested(nl_txq_params,
2114 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2115 rem_txq_params) {
ae811e21
JB		 2116 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2117 nla_data(nl_txq_params),
2118 nla_len(nl_txq_params),
2119 txq_params_policy);
2120 if (result)
2121 return result;
31888487
JM		 2122 result = parse_txq_params(tb, &txq_params);
2123 if (result)
7f2b8562 2124 return result;
31888487 2125
e35e4d28
HG		 2126 result = rdev_set_txq_params(rdev, netdev,
2127 &txq_params);
31888487 2128 if (result)
7f2b8562 2129 return result;
31888487
JM		 2130 }
2131 }
55682965 2132
72bdcf34 2133 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2134 result = __nl80211_set_channel(
2135 rdev,
2136 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2137 info);
72bdcf34 2138 if (result)
7f2b8562 2139 return result;
72bdcf34
JM		 2140 }
2141
98d2ff8b 2142 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2143 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2144 enum nl80211_tx_power_setting type;
2145 int idx, mbm = 0;
2146
c8442118
JB		 2147 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2148 txp_wdev = NULL;
2149
7f2b8562
YX		 2150 if (!rdev->ops->set_tx_power)
2151 return -EOPNOTSUPP;
98d2ff8b
JO		 2152
2153 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2154 type = nla_get_u32(info->attrs[idx]);
2155
2156 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2157 (type != NL80211_TX_POWER_AUTOMATIC))
2158 return -EINVAL;
98d2ff8b
JO		 2159
2160 if (type != NL80211_TX_POWER_AUTOMATIC) {
2161 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2162 mbm = nla_get_u32(info->attrs[idx]);
2163 }
2164
c8442118 2165 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2166 if (result)
7f2b8562 2167 return result;
98d2ff8b
JO		 2168 }
2169
afe0cbf8
BR		 2170 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2171 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2172 u32 tx_ant, rx_ant;
7f531e03
BR		 2173 if ((!rdev->wiphy.available_antennas_tx &&
2174 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2175 !rdev->ops->set_antenna)
2176 return -EOPNOTSUPP;
afe0cbf8
BR		 2177
2178 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2179 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2180
a7ffac95 2181 /* reject antenna configurations which don't match the
7f531e03
BR		 2182 * available antenna masks, except for the "all" mask */
2183 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2184 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2185 return -EINVAL;
a7ffac95 2186
7f531e03
BR		 2187 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2188 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2189
e35e4d28 2190 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2191 if (result)
7f2b8562 2192 return result;
afe0cbf8
BR		 2193 }
2194
b9a5f8ca
JM		 2195 changed = 0;
2196
2197 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2198 retry_short = nla_get_u8(
2199 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2200 if (retry_short == 0)
2201 return -EINVAL;
2202
b9a5f8ca
JM		 2203 changed |= WIPHY_PARAM_RETRY_SHORT;
2204 }
2205
2206 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2207 retry_long = nla_get_u8(
2208 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2209 if (retry_long == 0)
2210 return -EINVAL;
2211
b9a5f8ca
JM		 2212 changed |= WIPHY_PARAM_RETRY_LONG;
2213 }
2214
2215 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2216 frag_threshold = nla_get_u32(
2217 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2218 if (frag_threshold < 256)
2219 return -EINVAL;
2220
b9a5f8ca
JM		 2221 if (frag_threshold != (u32) -1) {
2222 /*
2223 * Fragments (apart from the last one) are required to
2224 * have even length. Make the fragmentation code
2225 * simpler by stripping LSB should someone try to use
2226 * odd threshold value.
2227 */
2228 frag_threshold &= ~0x1;
2229 }
2230 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2231 }
2232
2233 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2234 rts_threshold = nla_get_u32(
2235 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2236 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2237 }
2238
81077e82
LT		 2239 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2240 coverage_class = nla_get_u8(
2241 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2242 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2243 }
2244
b9a5f8ca
JM		 2245 if (changed) {
2246 u8 old_retry_short, old_retry_long;
2247 u32 old_frag_threshold, old_rts_threshold;
81077e82 2248 u8 old_coverage_class;
b9a5f8ca 2249
7f2b8562
YX		 2250 if (!rdev->ops->set_wiphy_params)
2251 return -EOPNOTSUPP;
b9a5f8ca
JM		 2252
2253 old_retry_short = rdev->wiphy.retry_short;
2254 old_retry_long = rdev->wiphy.retry_long;
2255 old_frag_threshold = rdev->wiphy.frag_threshold;
2256 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2257 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2258
2259 if (changed & WIPHY_PARAM_RETRY_SHORT)
2260 rdev->wiphy.retry_short = retry_short;
2261 if (changed & WIPHY_PARAM_RETRY_LONG)
2262 rdev->wiphy.retry_long = retry_long;
2263 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2264 rdev->wiphy.frag_threshold = frag_threshold;
2265 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2266 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2267 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2268 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2269
e35e4d28 2270 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2271 if (result) {
2272 rdev->wiphy.retry_short = old_retry_short;
2273 rdev->wiphy.retry_long = old_retry_long;
2274 rdev->wiphy.frag_threshold = old_frag_threshold;
2275 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2276 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2277 }
2278 }
7f2b8562 2279 return 0;
55682965
JB		 2280}
2281
71bbc994
JB		 2282static inline u64 wdev_id(struct wireless_dev *wdev)
2283{
2284 return (u64)wdev->identifier |
f26cbf40 2285 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2286}
55682965 2287
683b6d3b 2288static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2289 const struct cfg80211_chan_def *chandef)
683b6d3b 2290{
9f5e8f6e 2291 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2292
683b6d3b
JB		 2293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2294 chandef->chan->center_freq))
2295 return -ENOBUFS;
3d9d1d66
JB		 2296 switch (chandef->width) {
2297 case NL80211_CHAN_WIDTH_20_NOHT:
2298 case NL80211_CHAN_WIDTH_20:
2299 case NL80211_CHAN_WIDTH_40:
2300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2301 cfg80211_get_chandef_type(chandef)))
2302 return -ENOBUFS;
2303 break;
2304 default:
2305 break;
2306 }
2307 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2308 return -ENOBUFS;
2309 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2310 return -ENOBUFS;
2311 if (chandef->center_freq2 &&
2312 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2313 return -ENOBUFS;
2314 return 0;
2315}
2316
15e47304 2317static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2318 struct cfg80211_registered_device *rdev,
72fb2abc 2319 struct wireless_dev *wdev)
55682965 2320{
72fb2abc 2321 struct net_device *dev = wdev->netdev;
55682965
JB		 2322 void *hdr;
2323
15e47304 2324 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2325 if (!hdr)
2326 return -1;
2327
72fb2abc
JB		 2328 if (dev &&
2329 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2330 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2331 goto nla_put_failure;
2332
2333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2334 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2335 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2336 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2337 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2338 rdev->devlist_generation ^
2339 (cfg80211_rdev_list_generation << 2)))
2340 goto nla_put_failure;
f5ea9120 2341
5b7ccaf3 2342 if (rdev->ops->get_channel) {
683b6d3b
JB		 2343 int ret;
2344 struct cfg80211_chan_def chandef;
2345
2346 ret = rdev_get_channel(rdev, wdev, &chandef);
2347 if (ret == 0) {
2348 if (nl80211_send_chandef(msg, &chandef))
2349 goto nla_put_failure;
2350 }
d91df0e3
PF		 2351 }
2352
b84e7a05
AQ		 2353 if (wdev->ssid_len) {
2354 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2355 goto nla_put_failure;
2356 }
2357
55682965
JB		 2358 return genlmsg_end(msg, hdr);
2359
2360 nla_put_failure:
bc3ed28c
TG		 2361 genlmsg_cancel(msg, hdr);
2362 return -EMSGSIZE;
55682965
JB		 2363}
2364
2365static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2366{
2367 int wp_idx = 0;
2368 int if_idx = 0;
2369 int wp_start = cb->args[0];
2370 int if_start = cb->args[1];
f5ea9120 2371 struct cfg80211_registered_device *rdev;
55682965
JB		 2372 struct wireless_dev *wdev;
2373
5fe231e8 2374 rtnl_lock();
f5ea9120
JB		 2375 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2376 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2377 continue;
bba95fef
JB		 2378 if (wp_idx < wp_start) {
2379 wp_idx++;
55682965 2380 continue;
bba95fef 2381 }
55682965
JB		 2382 if_idx = 0;
2383
89a54e48 2384 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2385 if (if_idx < if_start) {
2386 if_idx++;
55682965 2387 continue;
bba95fef 2388 }
15e47304 2389 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2390 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2391 rdev, wdev) < 0) {
bba95fef
JB		 2392 goto out;
2393 }
2394 if_idx++;
55682965 2395 }
bba95fef
JB		 2396
2397 wp_idx++;
55682965 2398 }
bba95fef 2399 out:
5fe231e8 2400 rtnl_unlock();
55682965
JB		 2401
2402 cb->args[0] = wp_idx;
2403 cb->args[1] = if_idx;
2404
2405 return skb->len;
2406}
2407
2408static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2409{
2410 struct sk_buff *msg;
1b8ec87a 2411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2412 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2413
fd2120ca 2414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2415 if (!msg)
4c476991 2416 return -ENOMEM;
55682965 2417
15e47304 2418 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2419 rdev, wdev) < 0) {
4c476991
JB		 2420 nlmsg_free(msg);
2421 return -ENOBUFS;
2422 }
55682965 2423
134e6375 2424 return genlmsg_reply(msg, info);
55682965
JB		 2425}
2426
66f7ac50
MW		 2427static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2428 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2429 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2430 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2431 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2432 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2433 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2434};
2435
2436static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2437{
2438 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2439 int flag;
2440
2441 *mntrflags = 0;
2442
2443 if (!nla)
2444 return -EINVAL;
2445
2446 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2447 nla, mntr_flags_policy))
2448 return -EINVAL;
2449
2450 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2451 if (flags[flag])
2452 *mntrflags |= (1<<flag);
2453
2454 return 0;
2455}
2456
9bc383de 2457static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2458 struct net_device *netdev, u8 use_4addr,
2459 enum nl80211_iftype iftype)
9bc383de 2460{
ad4bb6f8 2461 if (!use_4addr) {
f350a0a8 2462 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2463 return -EBUSY;
9bc383de 2464 return 0;
ad4bb6f8 2465 }
9bc383de
JB		 2466
2467 switch (iftype) {
2468 case NL80211_IFTYPE_AP_VLAN:
2469 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2470 return 0;
2471 break;
2472 case NL80211_IFTYPE_STATION:
2473 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2474 return 0;
2475 break;
2476 default:
2477 break;
2478 }
2479
2480 return -EOPNOTSUPP;
2481}
2482
55682965
JB		 2483static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2484{
4c476991 2485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2486 struct vif_params params;
e36d56b6 2487 int err;
04a773ad 2488 enum nl80211_iftype otype, ntype;
4c476991 2489 struct net_device *dev = info->user_ptr[1];
92ffe055 2490 u32 _flags, *flags = NULL;
ac7f9cfa 2491 bool change = false;
55682965 2492
2ec600d6
LCC		 2493 memset(&params, 0, sizeof(params));
2494
04a773ad 2495 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2496
723b038d 2497 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2498 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2499 if (otype != ntype)
ac7f9cfa 2500 change = true;
4c476991
JB		 2501 if (ntype > NL80211_IFTYPE_MAX)
2502 return -EINVAL;
723b038d
JB		 2503 }
2504
92ffe055 2505 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2506 struct wireless_dev *wdev = dev->ieee80211_ptr;
2507
4c476991
JB		 2508 if (ntype != NL80211_IFTYPE_MESH_POINT)
2509 return -EINVAL;
29cbe68c
JB		 2510 if (netif_running(dev))
2511 return -EBUSY;
2512
2513 wdev_lock(wdev);
2514 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2515 IEEE80211_MAX_MESH_ID_LEN);
2516 wdev->mesh_id_up_len =
2517 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2518 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2519 wdev->mesh_id_up_len);
2520 wdev_unlock(wdev);
2ec600d6
LCC		 2521 }
2522
8b787643
FF		 2523 if (info->attrs[NL80211_ATTR_4ADDR]) {
2524 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2525 change = true;
ad4bb6f8 2526 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2527 if (err)
4c476991 2528 return err;
8b787643
FF		 2529 } else {
2530 params.use_4addr = -1;
2531 }
2532
92ffe055 2533 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2534 if (ntype != NL80211_IFTYPE_MONITOR)
2535 return -EINVAL;
92ffe055
JB		 2536 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2537 &_flags);
ac7f9cfa 2538 if (err)
4c476991 2539 return err;
ac7f9cfa
JB		 2540
2541 flags = &_flags;
2542 change = true;
92ffe055 2543 }
3b85875a 2544
18003297 2545 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2546 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2547 return -EOPNOTSUPP;
2548
ac7f9cfa 2549 if (change)
3d54d255 2550 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2551 else
2552 err = 0;
60719ffd 2553
9bc383de
JB		 2554 if (!err && params.use_4addr != -1)
2555 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2556
55682965
JB		 2557 return err;
2558}
2559
2560static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2561{
4c476991 2562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2563 struct vif_params params;
84efbb84 2564 struct wireless_dev *wdev;
1c90f9d4 2565 struct sk_buff *msg;
55682965
JB		 2566 int err;
2567 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2568 u32 flags;
55682965 2569
78f22b6a
JB		 2570 /* to avoid failing a new interface creation due to pending removal */
2571 cfg80211_destroy_ifaces(rdev);
2572
2ec600d6
LCC		 2573 memset(&params, 0, sizeof(params));
2574
55682965
JB		 2575 if (!info->attrs[NL80211_ATTR_IFNAME])
2576 return -EINVAL;
2577
2578 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2579 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2580 if (type > NL80211_IFTYPE_MAX)
2581 return -EINVAL;
2582 }
2583
79c97e97 2584 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2585 !(rdev->wiphy.interface_modes & (1 << type)))
2586 return -EOPNOTSUPP;
55682965 2587
1c18f145
AS		 2588 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2589 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2590 ETH_ALEN);
2591 if (!is_valid_ether_addr(params.macaddr))
2592 return -EADDRNOTAVAIL;
2593 }
2594
9bc383de 2595 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2596 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2597 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2598 if (err)
4c476991 2599 return err;
9bc383de 2600 }
8b787643 2601
1c90f9d4
JB		 2602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2603 if (!msg)
2604 return -ENOMEM;
2605
66f7ac50
MW		 2606 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2607 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2608 &flags);
e057d3c3 2609
18003297 2610 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2611 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2612 return -EOPNOTSUPP;
2613
e35e4d28
HG		 2614 wdev = rdev_add_virtual_intf(rdev,
2615 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2616 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2617 if (IS_ERR(wdev)) {
2618 nlmsg_free(msg);
84efbb84 2619 return PTR_ERR(wdev);
1c90f9d4 2620 }
2ec600d6 2621
78f22b6a
JB		 2622 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2623 wdev->owner_nlportid = info->snd_portid;
2624
98104fde
JB		 2625 switch (type) {
2626 case NL80211_IFTYPE_MESH_POINT:
2627 if (!info->attrs[NL80211_ATTR_MESH_ID])
2628 break;
29cbe68c
JB		 2629 wdev_lock(wdev);
2630 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2631 IEEE80211_MAX_MESH_ID_LEN);
2632 wdev->mesh_id_up_len =
2633 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2634 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2635 wdev->mesh_id_up_len);
2636 wdev_unlock(wdev);
98104fde
JB		 2637 break;
2638 case NL80211_IFTYPE_P2P_DEVICE:
2639 /*
2640 * P2P Device doesn't have a netdev, so doesn't go
2641 * through the netdev notifier and must be added here
2642 */
2643 mutex_init(&wdev->mtx);
2644 INIT_LIST_HEAD(&wdev->event_list);
2645 spin_lock_init(&wdev->event_lock);
2646 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2647 spin_lock_init(&wdev->mgmt_registrations_lock);
2648
98104fde
JB		 2649 wdev->identifier = ++rdev->wdev_id;
2650 list_add_rcu(&wdev->list, &rdev->wdev_list);
2651 rdev->devlist_generation++;
98104fde
JB		 2652 break;
2653 default:
2654 break;
29cbe68c
JB		 2655 }
2656
15e47304 2657 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2658 rdev, wdev) < 0) {
2659 nlmsg_free(msg);
2660 return -ENOBUFS;
2661 }
2662
2663 return genlmsg_reply(msg, info);
55682965
JB		 2664}
2665
2666static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2667{
4c476991 2668 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2669 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2670
4c476991
JB		 2671 if (!rdev->ops->del_virtual_intf)
2672 return -EOPNOTSUPP;
55682965 2673
84efbb84
JB		 2674 /*
2675 * If we remove a wireless device without a netdev then clear
2676 * user_ptr[1] so that nl80211_post_doit won't dereference it
2677 * to check if it needs to do dev_put(). Otherwise it crashes
2678 * since the wdev has been freed, unlike with a netdev where
2679 * we need the dev_put() for the netdev to really be freed.
2680 */
2681 if (!wdev->netdev)
2682 info->user_ptr[1] = NULL;
2683
e35e4d28 2684 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2685}
2686
1d9d9213
SW		 2687static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2688{
2689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2690 struct net_device *dev = info->user_ptr[1];
2691 u16 noack_map;
2692
2693 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2694 return -EINVAL;
2695
2696 if (!rdev->ops->set_noack_map)
2697 return -EOPNOTSUPP;
2698
2699 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2700
e35e4d28 2701 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2702}
2703
41ade00f
JB		 2704struct get_key_cookie {
2705 struct sk_buff *msg;
2706 int error;
b9454e83 2707 int idx;
41ade00f
JB		 2708};
2709
2710static void get_key_callback(void *c, struct key_params *params)
2711{
b9454e83 2712 struct nlattr *key;
41ade00f
JB		 2713 struct get_key_cookie *cookie = c;
2714
9360ffd1
DM		 2715 if ((params->key &&
2716 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2717 params->key_len, params->key)) ||
2718 (params->seq &&
2719 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2720 params->seq_len, params->seq)) ||
2721 (params->cipher &&
2722 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2723 params->cipher)))
2724 goto nla_put_failure;
41ade00f 2725
b9454e83
JB		 2726 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2727 if (!key)
2728 goto nla_put_failure;
2729
9360ffd1
DM		 2730 if ((params->key &&
2731 nla_put(cookie->msg, NL80211_KEY_DATA,
2732 params->key_len, params->key)) ||
2733 (params->seq &&
2734 nla_put(cookie->msg, NL80211_KEY_SEQ,
2735 params->seq_len, params->seq)) ||
2736 (params->cipher &&
2737 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2738 params->cipher)))
2739 goto nla_put_failure;
b9454e83 2740
9360ffd1
DM		 2741 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2742 goto nla_put_failure;
b9454e83
JB		 2743
2744 nla_nest_end(cookie->msg, key);
2745
41ade00f
JB		 2746 return;
2747 nla_put_failure:
2748 cookie->error = 1;
2749}
2750
2751static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2752{
4c476991 2753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2754 int err;
4c476991 2755 struct net_device *dev = info->user_ptr[1];
41ade00f 2756 u8 key_idx = 0;
e31b8213
JB		 2757 const u8 *mac_addr = NULL;
2758 bool pairwise;
41ade00f
JB		 2759 struct get_key_cookie cookie = {
2760 .error = 0,
2761 };
2762 void *hdr;
2763 struct sk_buff *msg;
2764
2765 if (info->attrs[NL80211_ATTR_KEY_IDX])
2766 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2767
3cfcf6ac 2768 if (key_idx > 5)
41ade00f
JB		 2769 return -EINVAL;
2770
2771 if (info->attrs[NL80211_ATTR_MAC])
2772 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2773
e31b8213
JB		 2774 pairwise = !!mac_addr;
2775 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2776 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2777 if (kt >= NUM_NL80211_KEYTYPES)
2778 return -EINVAL;
2779 if (kt != NL80211_KEYTYPE_GROUP &&
2780 kt != NL80211_KEYTYPE_PAIRWISE)
2781 return -EINVAL;
2782 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2783 }
2784
4c476991
JB		 2785 if (!rdev->ops->get_key)
2786 return -EOPNOTSUPP;
41ade00f 2787
fd2120ca 2788 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2789 if (!msg)
2790 return -ENOMEM;
41ade00f 2791
15e47304 2792 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2793 NL80211_CMD_NEW_KEY);
cb35fba3 2794 if (!hdr)
9fe271af 2795 goto nla_put_failure;
41ade00f
JB		 2796
2797 cookie.msg = msg;
b9454e83 2798 cookie.idx = key_idx;
41ade00f 2799
9360ffd1
DM		 2800 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2801 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2802 goto nla_put_failure;
2803 if (mac_addr &&
2804 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2805 goto nla_put_failure;
41ade00f 2806
e31b8213
JB		 2807 if (pairwise && mac_addr &&
2808 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2809 return -ENOENT;
2810
e35e4d28
HG		 2811 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2812 get_key_callback);
41ade00f
JB		 2813
2814 if (err)
6c95e2a2 2815 goto free_msg;
41ade00f
JB		 2816
2817 if (cookie.error)
2818 goto nla_put_failure;
2819
2820 genlmsg_end(msg, hdr);
4c476991 2821 return genlmsg_reply(msg, info);
41ade00f
JB		 2822
2823 nla_put_failure:
2824 err = -ENOBUFS;
6c95e2a2 2825 free_msg:
41ade00f 2826 nlmsg_free(msg);
41ade00f
JB		 2827 return err;
2828}
2829
2830static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2831{
4c476991 2832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2833 struct key_parse key;
41ade00f 2834 int err;
4c476991 2835 struct net_device *dev = info->user_ptr[1];
41ade00f 2836
b9454e83
JB		 2837 err = nl80211_parse_key(info, &key);
2838 if (err)
2839 return err;
41ade00f 2840
b9454e83 2841 if (key.idx < 0)
41ade00f
JB		 2842 return -EINVAL;
2843
b9454e83
JB		 2844 /* only support setting default key */
2845 if (!key.def && !key.defmgmt)
41ade00f
JB		 2846 return -EINVAL;
2847
dbd2fd65 2848 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2849
dbd2fd65
JB		 2850 if (key.def) {
2851 if (!rdev->ops->set_default_key) {
2852 err = -EOPNOTSUPP;
2853 goto out;
2854 }
41ade00f 2855
dbd2fd65
JB		 2856 err = nl80211_key_allowed(dev->ieee80211_ptr);
2857 if (err)
2858 goto out;
2859
e35e4d28 2860 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2861 key.def_uni, key.def_multi);
2862
2863 if (err)
2864 goto out;
fffd0934 2865
3d23e349 2866#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2867 dev->ieee80211_ptr->wext.default_key = key.idx;
2868#endif
2869 } else {
2870 if (key.def_uni || !key.def_multi) {
2871 err = -EINVAL;
2872 goto out;
2873 }
2874
2875 if (!rdev->ops->set_default_mgmt_key) {
2876 err = -EOPNOTSUPP;
2877 goto out;
2878 }
2879
2880 err = nl80211_key_allowed(dev->ieee80211_ptr);
2881 if (err)
2882 goto out;
2883
e35e4d28 2884 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2885 if (err)
2886 goto out;
2887
2888#ifdef CONFIG_CFG80211_WEXT
2889 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2890#endif
dbd2fd65
JB		 2891 }
2892
2893 out:
fffd0934 2894 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2895
41ade00f
JB		 2896 return err;
2897}
2898
2899static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2900{
4c476991 2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2902 int err;
4c476991 2903 struct net_device *dev = info->user_ptr[1];
b9454e83 2904 struct key_parse key;
e31b8213 2905 const u8 *mac_addr = NULL;
41ade00f 2906
b9454e83
JB		 2907 err = nl80211_parse_key(info, &key);
2908 if (err)
2909 return err;
41ade00f 2910
b9454e83 2911 if (!key.p.key)
41ade00f
JB		 2912 return -EINVAL;
2913
41ade00f
JB		 2914 if (info->attrs[NL80211_ATTR_MAC])
2915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916
e31b8213
JB		 2917 if (key.type == -1) {
2918 if (mac_addr)
2919 key.type = NL80211_KEYTYPE_PAIRWISE;
2920 else
2921 key.type = NL80211_KEYTYPE_GROUP;
2922 }
2923
2924 /* for now */
2925 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2926 key.type != NL80211_KEYTYPE_GROUP)
2927 return -EINVAL;
2928
4c476991
JB		 2929 if (!rdev->ops->add_key)
2930 return -EOPNOTSUPP;
25e47c18 2931
e31b8213
JB		 2932 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2933 key.type == NL80211_KEYTYPE_PAIRWISE,
2934 mac_addr))
4c476991 2935 return -EINVAL;
41ade00f 2936
fffd0934
JB		 2937 wdev_lock(dev->ieee80211_ptr);
2938 err = nl80211_key_allowed(dev->ieee80211_ptr);
2939 if (!err)
e35e4d28
HG		 2940 err = rdev_add_key(rdev, dev, key.idx,
2941 key.type == NL80211_KEYTYPE_PAIRWISE,
2942 mac_addr, &key.p);
fffd0934 2943 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2944
41ade00f
JB		 2945 return err;
2946}
2947
2948static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2949{
4c476991 2950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2951 int err;
4c476991 2952 struct net_device *dev = info->user_ptr[1];
41ade00f 2953 u8 *mac_addr = NULL;
b9454e83 2954 struct key_parse key;
41ade00f 2955
b9454e83
JB		 2956 err = nl80211_parse_key(info, &key);
2957 if (err)
2958 return err;
41ade00f
JB		 2959
2960 if (info->attrs[NL80211_ATTR_MAC])
2961 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2962
e31b8213
JB		 2963 if (key.type == -1) {
2964 if (mac_addr)
2965 key.type = NL80211_KEYTYPE_PAIRWISE;
2966 else
2967 key.type = NL80211_KEYTYPE_GROUP;
2968 }
2969
2970 /* for now */
2971 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2972 key.type != NL80211_KEYTYPE_GROUP)
2973 return -EINVAL;
2974
4c476991
JB		 2975 if (!rdev->ops->del_key)
2976 return -EOPNOTSUPP;
41ade00f 2977
fffd0934
JB		 2978 wdev_lock(dev->ieee80211_ptr);
2979 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2980
2981 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2982 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2983 err = -ENOENT;
2984
fffd0934 2985 if (!err)
e35e4d28
HG		 2986 err = rdev_del_key(rdev, dev, key.idx,
2987 key.type == NL80211_KEYTYPE_PAIRWISE,
2988 mac_addr);
41ade00f 2989
3d23e349 2990#ifdef CONFIG_CFG80211_WEXT
08645126 2991 if (!err) {
b9454e83 2992 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2993 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2994 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2995 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2996 }
2997#endif
fffd0934 2998 wdev_unlock(dev->ieee80211_ptr);
08645126 2999
41ade00f
JB		 3000 return err;
3001}
3002
77765eaf
VT		 3003/* This function returns an error or the number of nested attributes */
3004static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3005{
3006 struct nlattr *attr;
3007 int n_entries = 0, tmp;
3008
3009 nla_for_each_nested(attr, nl_attr, tmp) {
3010 if (nla_len(attr) != ETH_ALEN)
3011 return -EINVAL;
3012
3013 n_entries++;
3014 }
3015
3016 return n_entries;
3017}
3018
3019/*
3020 * This function parses ACL information and allocates memory for ACL data.
3021 * On successful return, the calling function is responsible to free the
3022 * ACL buffer returned by this function.
3023 */
3024static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3025 struct genl_info *info)
3026{
3027 enum nl80211_acl_policy acl_policy;
3028 struct nlattr *attr;
3029 struct cfg80211_acl_data *acl;
3030 int i = 0, n_entries, tmp;
3031
3032 if (!wiphy->max_acl_mac_addrs)
3033 return ERR_PTR(-EOPNOTSUPP);
3034
3035 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3036 return ERR_PTR(-EINVAL);
3037
3038 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3039 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3040 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3041 return ERR_PTR(-EINVAL);
3042
3043 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3044 return ERR_PTR(-EINVAL);
3045
3046 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3047 if (n_entries < 0)
3048 return ERR_PTR(n_entries);
3049
3050 if (n_entries > wiphy->max_acl_mac_addrs)
3051 return ERR_PTR(-ENOTSUPP);
3052
3053 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3054 GFP_KERNEL);
3055 if (!acl)
3056 return ERR_PTR(-ENOMEM);
3057
3058 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3059 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3060 i++;
3061 }
3062
3063 acl->n_acl_entries = n_entries;
3064 acl->acl_policy = acl_policy;
3065
3066 return acl;
3067}
3068
3069static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3070{
3071 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3072 struct net_device *dev = info->user_ptr[1];
3073 struct cfg80211_acl_data *acl;
3074 int err;
3075
3076 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3077 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3078 return -EOPNOTSUPP;
3079
3080 if (!dev->ieee80211_ptr->beacon_interval)
3081 return -EINVAL;
3082
3083 acl = parse_acl_data(&rdev->wiphy, info);
3084 if (IS_ERR(acl))
3085 return PTR_ERR(acl);
3086
3087 err = rdev_set_mac_acl(rdev, dev, acl);
3088
3089 kfree(acl);
3090
3091 return err;
3092}
3093
a1193be8 3094static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3095 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3096{
8860020e 3097 bool haveinfo = false;
ed1b6cc7 3098
a1193be8
SW		 3099 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3100 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3101 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3102 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3103 return -EINVAL;
3104
8860020e 3105 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3106
a1193be8
SW		 3107 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3108 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3109 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3110 if (!bcn->head_len)
3111 return -EINVAL;
3112 haveinfo = true;
ed1b6cc7
JB		 3113 }
3114
a1193be8
SW		 3115 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3116 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3117 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3118 haveinfo = true;
ed1b6cc7
JB		 3119 }
3120
4c476991
JB		 3121 if (!haveinfo)
3122 return -EINVAL;
3b85875a 3123
a1193be8
SW		 3124 if (attrs[NL80211_ATTR_IE]) {
3125 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3126 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3127 }
3128
a1193be8 3129 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3130 bcn->proberesp_ies =
a1193be8 3131 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3132 bcn->proberesp_ies_len =
a1193be8 3133 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3134 }
3135
a1193be8 3136 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3137 bcn->assocresp_ies =
a1193be8 3138 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3139 bcn->assocresp_ies_len =
a1193be8 3140 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3141 }
3142
a1193be8
SW		 3143 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3144 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3145 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3146 }
3147
8860020e
JB		 3148 return 0;
3149}
3150
46c1dd0c
FF		 3151static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3152 struct cfg80211_ap_settings *params)
3153{
3154 struct wireless_dev *wdev;
3155 bool ret = false;
3156
89a54e48 3157 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3158 if (wdev->iftype != NL80211_IFTYPE_AP &&
3159 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3160 continue;
3161
683b6d3b 3162 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3163 continue;
3164
683b6d3b 3165 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3166 ret = true;
3167 break;
3168 }
3169
46c1dd0c
FF		 3170 return ret;
3171}
3172
e39e5b5e
JM		 3173static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3174 enum nl80211_auth_type auth_type,
3175 enum nl80211_commands cmd)
3176{
3177 if (auth_type > NL80211_AUTHTYPE_MAX)
3178 return false;
3179
3180 switch (cmd) {
3181 case NL80211_CMD_AUTHENTICATE:
3182 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3183 auth_type == NL80211_AUTHTYPE_SAE)
3184 return false;
3185 return true;
3186 case NL80211_CMD_CONNECT:
3187 case NL80211_CMD_START_AP:
3188 /* SAE not supported yet */
3189 if (auth_type == NL80211_AUTHTYPE_SAE)
3190 return false;
3191 return true;
3192 default:
3193 return false;
3194 }
3195}
3196
8860020e
JB		 3197static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3198{
3199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3200 struct net_device *dev = info->user_ptr[1];
3201 struct wireless_dev *wdev = dev->ieee80211_ptr;
3202 struct cfg80211_ap_settings params;
3203 int err;
3204
3205 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3206 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3207 return -EOPNOTSUPP;
3208
3209 if (!rdev->ops->start_ap)
3210 return -EOPNOTSUPP;
3211
3212 if (wdev->beacon_interval)
3213 return -EALREADY;
3214
3215 memset(&params, 0, sizeof(params));
3216
3217 /* these are required for START_AP */
3218 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3219 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3220 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3221 return -EINVAL;
3222
a1193be8 3223 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3224 if (err)
3225 return err;
3226
3227 params.beacon_interval =
3228 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3229 params.dtim_period =
3230 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3231
3232 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3233 if (err)
3234 return err;
3235
3236 /*
3237 * In theory, some of these attributes should be required here
3238 * but since they were not used when the command was originally
3239 * added, keep them optional for old user space programs to let
3240 * them continue to work with drivers that do not need the
3241 * additional information -- drivers must check!
3242 */
3243 if (info->attrs[NL80211_ATTR_SSID]) {
3244 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3245 params.ssid_len =
3246 nla_len(info->attrs[NL80211_ATTR_SSID]);
3247 if (params.ssid_len == 0 ||
3248 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3249 return -EINVAL;
3250 }
3251
3252 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3253 params.hidden_ssid = nla_get_u32(
3254 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3255 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3256 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3257 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3258 return -EINVAL;
3259 }
3260
3261 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3262
3263 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3264 params.auth_type = nla_get_u32(
3265 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3266 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3267 NL80211_CMD_START_AP))
8860020e
JB		 3268 return -EINVAL;
3269 } else
3270 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3271
3272 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3273 NL80211_MAX_NR_CIPHER_SUITES);
3274 if (err)
3275 return err;
3276
1b658f11
VT		 3277 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3278 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3279 return -EOPNOTSUPP;
3280 params.inactivity_timeout = nla_get_u16(
3281 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3282 }
3283
53cabad7
JB		 3284 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3285 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3286 return -EINVAL;
3287 params.p2p_ctwindow =
3288 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3289 if (params.p2p_ctwindow > 127)
3290 return -EINVAL;
3291 if (params.p2p_ctwindow != 0 &&
3292 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3293 return -EINVAL;
3294 }
3295
3296 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3297 u8 tmp;
3298
3299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3300 return -EINVAL;
3301 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3302 if (tmp > 1)
3303 return -EINVAL;
3304 params.p2p_opp_ps = tmp;
3305 if (params.p2p_opp_ps != 0 &&
3306 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3307 return -EINVAL;
3308 }
3309
aa430da4 3310 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3311 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3312 if (err)
3313 return err;
3314 } else if (wdev->preset_chandef.chan) {
3315 params.chandef = wdev->preset_chandef;
46c1dd0c 3316 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3317 return -EINVAL;
3318
174e0cd2
IP		 3319 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3320 wdev->iftype))
aa430da4
JB		 3321 return -EINVAL;
3322
77765eaf
VT		 3323 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3324 params.acl = parse_acl_data(&rdev->wiphy, info);
3325 if (IS_ERR(params.acl))
3326 return PTR_ERR(params.acl);
3327 }
3328
c56589ed 3329 wdev_lock(wdev);
e35e4d28 3330 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3331 if (!err) {
683b6d3b 3332 wdev->preset_chandef = params.chandef;
8860020e 3333 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3334 wdev->chandef = params.chandef;
06e191e2
AQ		 3335 wdev->ssid_len = params.ssid_len;
3336 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3337 }
c56589ed 3338 wdev_unlock(wdev);
77765eaf
VT		 3339
3340 kfree(params.acl);
3341
56d1893d 3342 return err;
ed1b6cc7
JB		 3343}
3344
8860020e
JB		 3345static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3346{
3347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3348 struct net_device *dev = info->user_ptr[1];
3349 struct wireless_dev *wdev = dev->ieee80211_ptr;
3350 struct cfg80211_beacon_data params;
3351 int err;
3352
3353 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3354 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3355 return -EOPNOTSUPP;
3356
3357 if (!rdev->ops->change_beacon)
3358 return -EOPNOTSUPP;
3359
3360 if (!wdev->beacon_interval)
3361 return -EINVAL;
3362
a1193be8 3363 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3364 if (err)
3365 return err;
3366
c56589ed
SW		 3367 wdev_lock(wdev);
3368 err = rdev_change_beacon(rdev, dev, &params);
3369 wdev_unlock(wdev);
3370
3371 return err;
8860020e
JB		 3372}
3373
3374static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3375{
4c476991
JB		 3376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3377 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3378
7c8d5e03 3379 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3380}
3381
5727ef1b
JB		 3382static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3383 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3384 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3385 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3386 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3387 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3388 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3389};
3390
eccb8e8f 3391static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3392 enum nl80211_iftype iftype,
eccb8e8f 3393 struct station_parameters *params)
5727ef1b
JB		 3394{
3395 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3396 struct nlattr *nla;
5727ef1b
JB		 3397 int flag;
3398
eccb8e8f
JB		 3399 /*
3400 * Try parsing the new attribute first so userspace
3401 * can specify both for older kernels.
3402 */
3403 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3404 if (nla) {
3405 struct nl80211_sta_flag_update *sta_flags;
3406
3407 sta_flags = nla_data(nla);
3408 params->sta_flags_mask = sta_flags->mask;
3409 params->sta_flags_set = sta_flags->set;
77ee7c89 3410 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3411 if ((params->sta_flags_mask |
3412 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3413 return -EINVAL;
3414 return 0;
3415 }
3416
3417 /* if present, parse the old attribute */
5727ef1b 3418
eccb8e8f 3419 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3420 if (!nla)
3421 return 0;
3422
3423 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3424 nla, sta_flags_policy))
3425 return -EINVAL;
3426
bdd3ae3d
JB		 3427 /*
3428 * Only allow certain flags for interface types so that
3429 * other attributes are silently ignored. Remember that
3430 * this is backward compatibility code with old userspace
3431 * and shouldn't be hit in other cases anyway.
3432 */
3433 switch (iftype) {
3434 case NL80211_IFTYPE_AP:
3435 case NL80211_IFTYPE_AP_VLAN:
3436 case NL80211_IFTYPE_P2P_GO:
3437 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3438 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3439 BIT(NL80211_STA_FLAG_WME) |
3440 BIT(NL80211_STA_FLAG_MFP);
3441 break;
3442 case NL80211_IFTYPE_P2P_CLIENT:
3443 case NL80211_IFTYPE_STATION:
3444 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3445 BIT(NL80211_STA_FLAG_TDLS_PEER);
3446 break;
3447 case NL80211_IFTYPE_MESH_POINT:
3448 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3449 BIT(NL80211_STA_FLAG_MFP) |
3450 BIT(NL80211_STA_FLAG_AUTHORIZED);
3451 default:
3452 return -EINVAL;
3453 }
5727ef1b 3454
3383b5a6
JB		 3455 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3456 if (flags[flag]) {
eccb8e8f 3457 params->sta_flags_set |= (1<<flag);
5727ef1b 3458
3383b5a6
JB		 3459 /* no longer support new API additions in old API */
3460 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3461 return -EINVAL;
3462 }
3463 }
3464
5727ef1b
JB		 3465 return 0;
3466}
3467
c8dcfd8a
FF		 3468static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3469 int attr)
3470{
3471 struct nlattr *rate;
8eb41c8d
VK		 3472 u32 bitrate;
3473 u16 bitrate_compat;
c8dcfd8a
FF		 3474
3475 rate = nla_nest_start(msg, attr);
3476 if (!rate)
db9c64cf 3477 return false;
c8dcfd8a
FF		 3478
3479 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3480 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3481 /* report 16-bit bitrate only if we can */
3482 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3483 if (bitrate > 0 &&
3484 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3485 return false;
3486 if (bitrate_compat > 0 &&
3487 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3488 return false;
3489
3490 if (info->flags & RATE_INFO_FLAGS_MCS) {
3491 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3492 return false;
3493 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3494 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3495 return false;
3496 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3497 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3498 return false;
3499 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3500 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3501 return false;
3502 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3503 return false;
3504 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3505 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3506 return false;
3507 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3508 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3509 return false;
3510 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3511 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3512 return false;
3513 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3514 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3515 return false;
3516 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3517 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3518 return false;
3519 }
c8dcfd8a
FF		 3520
3521 nla_nest_end(msg, rate);
3522 return true;
c8dcfd8a
FF		 3523}
3524
119363c7
FF		 3525static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3526 int id)
3527{
3528 void *attr;
3529 int i = 0;
3530
3531 if (!mask)
3532 return true;
3533
3534 attr = nla_nest_start(msg, id);
3535 if (!attr)
3536 return false;
3537
3538 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3539 if (!(mask & BIT(i)))
3540 continue;
3541
3542 if (nla_put_u8(msg, i, signal[i]))
3543 return false;
3544 }
3545
3546 nla_nest_end(msg, attr);
3547
3548 return true;
3549}
3550
15e47304 3551static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3552 int flags,
3553 struct cfg80211_registered_device *rdev,
3554 struct net_device *dev,
98b62183 3555 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3556{
3557 void *hdr;
f4263c98 3558 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3559
15e47304 3560 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3561 if (!hdr)
3562 return -1;
3563
9360ffd1
DM		 3564 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3565 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3566 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3567 goto nla_put_failure;
f5ea9120 3568
2ec600d6
LCC		 3569 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3570 if (!sinfoattr)
fd5b74dc 3571 goto nla_put_failure;
9360ffd1
DM		 3572 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3573 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3574 sinfo->connected_time))
3575 goto nla_put_failure;
3576 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3577 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3578 sinfo->inactive_time))
3579 goto nla_put_failure;
42745e03
VK		 3580 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3581 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3582 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3583 (u32)sinfo->rx_bytes))
9360ffd1 3584 goto nla_put_failure;
42745e03 3585 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3586 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3587 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3588 (u32)sinfo->tx_bytes))
3589 goto nla_put_failure;
3590 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3591 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3592 sinfo->rx_bytes))
3593 goto nla_put_failure;
3594 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3595 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3596 sinfo->tx_bytes))
3597 goto nla_put_failure;
3598 if ((sinfo->filled & STATION_INFO_LLID) &&
3599 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3600 goto nla_put_failure;
3601 if ((sinfo->filled & STATION_INFO_PLID) &&
3602 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3603 goto nla_put_failure;
3604 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3605 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3606 sinfo->plink_state))
3607 goto nla_put_failure;
66266b3a
JL		 3608 switch (rdev->wiphy.signal_type) {
3609 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3610 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3611 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3612 sinfo->signal))
3613 goto nla_put_failure;
3614 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3615 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3616 sinfo->signal_avg))
3617 goto nla_put_failure;
66266b3a
JL		 3618 break;
3619 default:
3620 break;
3621 }
119363c7
FF		 3622 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3623 if (!nl80211_put_signal(msg, sinfo->chains,
3624 sinfo->chain_signal,
3625 NL80211_STA_INFO_CHAIN_SIGNAL))
3626 goto nla_put_failure;
3627 }
3628 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3629 if (!nl80211_put_signal(msg, sinfo->chains,
3630 sinfo->chain_signal_avg,
3631 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3632 goto nla_put_failure;
3633 }
420e7fab 3634 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3635 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3636 NL80211_STA_INFO_TX_BITRATE))
3637 goto nla_put_failure;
3638 }
3639 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3640 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3641 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3642 goto nla_put_failure;
420e7fab 3643 }
9360ffd1
DM		 3644 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3645 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3646 sinfo->rx_packets))
3647 goto nla_put_failure;
3648 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3649 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3650 sinfo->tx_packets))
3651 goto nla_put_failure;
3652 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3653 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3654 sinfo->tx_retries))
3655 goto nla_put_failure;
3656 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3657 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3658 sinfo->tx_failed))
3659 goto nla_put_failure;
867d849f
AQ		 3660 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3661 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3662 sinfo->expected_throughput))
3663 goto nla_put_failure;
9360ffd1
DM		 3664 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3665 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3666 sinfo->beacon_loss_count))
3667 goto nla_put_failure;
3b1c5a53
MP		 3668 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3669 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3670 sinfo->local_pm))
3671 goto nla_put_failure;
3672 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3673 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3674 sinfo->peer_pm))
3675 goto nla_put_failure;
3676 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3677 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3678 sinfo->nonpeer_pm))
3679 goto nla_put_failure;
f4263c98
PS		 3680 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3681 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3682 if (!bss_param)
3683 goto nla_put_failure;
3684
9360ffd1
DM		 3685 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3686 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3687 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3688 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3689 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3690 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3691 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3692 sinfo->bss_param.dtim_period) ||
3693 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3694 sinfo->bss_param.beacon_interval))
3695 goto nla_put_failure;
f4263c98
PS		 3696
3697 nla_nest_end(msg, bss_param);
3698 }
9360ffd1
DM		 3699 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3700 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3701 sizeof(struct nl80211_sta_flag_update),
3702 &sinfo->sta_flags))
3703 goto nla_put_failure;
7eab0f64
JL		 3704 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3705 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3706 sinfo->t_offset))
3707 goto nla_put_failure;
2ec600d6 3708 nla_nest_end(msg, sinfoattr);
fd5b74dc 3709
9360ffd1
DM		 3710 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3711 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3712 sinfo->assoc_req_ies))
3713 goto nla_put_failure;
50d3dfb7 3714
fd5b74dc
JB		 3715 return genlmsg_end(msg, hdr);
3716
3717 nla_put_failure:
bc3ed28c
TG		 3718 genlmsg_cancel(msg, hdr);
3719 return -EMSGSIZE;
fd5b74dc
JB		 3720}
3721
2ec600d6 3722static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3723 struct netlink_callback *cb)
2ec600d6 3724{
2ec600d6 3725 struct station_info sinfo;
1b8ec87a 3726 struct cfg80211_registered_device *rdev;
97990a06 3727 struct wireless_dev *wdev;
2ec600d6 3728 u8 mac_addr[ETH_ALEN];
97990a06 3729 int sta_idx = cb->args[2];
2ec600d6 3730 int err;
2ec600d6 3731
1b8ec87a 3732 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3733 if (err)
3734 return err;
bba95fef 3735
97990a06
JB		 3736 if (!wdev->netdev) {
3737 err = -EINVAL;
3738 goto out_err;
3739 }
3740
1b8ec87a 3741 if (!rdev->ops->dump_station) {
eec60b03 3742 err = -EOPNOTSUPP;
bba95fef
JB		 3743 goto out_err;
3744 }
3745
bba95fef 3746 while (1) {
f612cedf 3747 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3748 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3749 mac_addr, &sinfo);
bba95fef
JB		 3750 if (err == -ENOENT)
3751 break;
3752 if (err)
3b85875a 3753 goto out_err;
bba95fef
JB		 3754
3755 if (nl80211_send_station(skb,
15e47304 3756 NETLINK_CB(cb->skb).portid,
bba95fef 3757 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3758 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3759 &sinfo) < 0)
3760 goto out;
3761
3762 sta_idx++;
3763 }
3764
3765
3766 out:
97990a06 3767 cb->args[2] = sta_idx;
bba95fef 3768 err = skb->len;
bba95fef 3769 out_err:
1b8ec87a 3770 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3771
3772 return err;
2ec600d6 3773}
fd5b74dc 3774
5727ef1b
JB		 3775static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3776{
4c476991
JB		 3777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3778 struct net_device *dev = info->user_ptr[1];
2ec600d6 3779 struct station_info sinfo;
fd5b74dc
JB		 3780 struct sk_buff *msg;
3781 u8 *mac_addr = NULL;
4c476991 3782 int err;
fd5b74dc 3783
2ec600d6 3784 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3785
3786 if (!info->attrs[NL80211_ATTR_MAC])
3787 return -EINVAL;
3788
3789 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3790
4c476991
JB		 3791 if (!rdev->ops->get_station)
3792 return -EOPNOTSUPP;
3b85875a 3793
e35e4d28 3794 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3795 if (err)
4c476991 3796 return err;
2ec600d6 3797
fd2120ca 3798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3799 if (!msg)
4c476991 3800 return -ENOMEM;
fd5b74dc 3801
15e47304 3802 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3803 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3804 nlmsg_free(msg);
3805 return -ENOBUFS;
3806 }
3b85875a 3807
4c476991 3808 return genlmsg_reply(msg, info);
5727ef1b
JB		 3809}
3810
77ee7c89
JB		 3811int cfg80211_check_station_change(struct wiphy *wiphy,
3812 struct station_parameters *params,
3813 enum cfg80211_station_type statype)
3814{
3815 if (params->listen_interval != -1)
3816 return -EINVAL;
3817 if (params->aid)
3818 return -EINVAL;
3819
3820 /* When you run into this, adjust the code below for the new flag */
3821 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3822
3823 switch (statype) {
eef941e6
TP		 3824 case CFG80211_STA_MESH_PEER_KERNEL:
3825 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3826 /*
3827 * No ignoring the TDLS flag here -- the userspace mesh
3828 * code doesn't have the bug of including TDLS in the
3829 * mask everywhere.
3830 */
3831 if (params->sta_flags_mask &
3832 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3833 BIT(NL80211_STA_FLAG_MFP) |
3834 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3835 return -EINVAL;
3836 break;
3837 case CFG80211_STA_TDLS_PEER_SETUP:
3838 case CFG80211_STA_TDLS_PEER_ACTIVE:
3839 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3840 return -EINVAL;
3841 /* ignore since it can't change */
3842 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3843 break;
3844 default:
3845 /* disallow mesh-specific things */
3846 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3847 return -EINVAL;
3848 if (params->local_pm)
3849 return -EINVAL;
3850 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3851 return -EINVAL;
3852 }
3853
3854 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3855 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3856 /* TDLS can't be set, ... */
3857 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3858 return -EINVAL;
3859 /*
3860 * ... but don't bother the driver with it. This works around
3861 * a hostapd/wpa_supplicant issue -- it always includes the
3862 * TLDS_PEER flag in the mask even for AP mode.
3863 */
3864 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3865 }
3866
3867 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3868 /* reject other things that can't change */
3869 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3870 return -EINVAL;
3871 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3872 return -EINVAL;
3873 if (params->supported_rates)
3874 return -EINVAL;
3875 if (params->ext_capab || params->ht_capa || params->vht_capa)
3876 return -EINVAL;
3877 }
3878
3879 if (statype != CFG80211_STA_AP_CLIENT) {
3880 if (params->vlan)
3881 return -EINVAL;
3882 }
3883
3884 switch (statype) {
3885 case CFG80211_STA_AP_MLME_CLIENT:
3886 /* Use this only for authorizing/unauthorizing a station */
3887 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3888 return -EOPNOTSUPP;
3889 break;
3890 case CFG80211_STA_AP_CLIENT:
3891 /* accept only the listed bits */
3892 if (params->sta_flags_mask &
3893 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3894 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3895 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3896 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3897 BIT(NL80211_STA_FLAG_WME) |
3898 BIT(NL80211_STA_FLAG_MFP)))
3899 return -EINVAL;
3900
3901 /* but authenticated/associated only if driver handles it */
3902 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3903 params->sta_flags_mask &
3904 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3905 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3906 return -EINVAL;
3907 break;
3908 case CFG80211_STA_IBSS:
3909 case CFG80211_STA_AP_STA:
3910 /* reject any changes other than AUTHORIZED */
3911 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3912 return -EINVAL;
3913 break;
3914 case CFG80211_STA_TDLS_PEER_SETUP:
3915 /* reject any changes other than AUTHORIZED or WME */
3916 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3917 BIT(NL80211_STA_FLAG_WME)))
3918 return -EINVAL;
3919 /* force (at least) rates when authorizing */
3920 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3921 !params->supported_rates)
3922 return -EINVAL;
3923 break;
3924 case CFG80211_STA_TDLS_PEER_ACTIVE:
3925 /* reject any changes */
3926 return -EINVAL;
eef941e6 3927 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3928 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3929 return -EINVAL;
3930 break;
eef941e6 3931 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3932 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3933 return -EINVAL;
3934 break;
3935 }
3936
3937 return 0;
3938}
3939EXPORT_SYMBOL(cfg80211_check_station_change);
3940
5727ef1b 3941/*
c258d2de 3942 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3943 */
80b99899
JB		 3944static struct net_device *get_vlan(struct genl_info *info,
3945 struct cfg80211_registered_device *rdev)
5727ef1b 3946{
463d0183 3947 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3948 struct net_device *v;
3949 int ret;
3950
3951 if (!vlanattr)
3952 return NULL;
3953
3954 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3955 if (!v)
3956 return ERR_PTR(-ENODEV);
3957
3958 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3959 ret = -EINVAL;
3960 goto error;
5727ef1b 3961 }
80b99899 3962
77ee7c89
JB		 3963 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3964 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3965 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3966 ret = -EINVAL;
3967 goto error;
3968 }
3969
80b99899
JB		 3970 if (!netif_running(v)) {
3971 ret = -ENETDOWN;
3972 goto error;
3973 }
3974
3975 return v;
3976 error:
3977 dev_put(v);
3978 return ERR_PTR(ret);
5727ef1b
JB		 3979}
3980
94e860f1
JB		 3981static const struct nla_policy
3982nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3983 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3984 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3985};
3986
ff276691
JB		 3987static int nl80211_parse_sta_wme(struct genl_info *info,
3988 struct station_parameters *params)
df881293 3989{
df881293
JM		 3990 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3991 struct nlattr *nla;
3992 int err;
3993
df881293
JM		 3994 /* parse WME attributes if present */
3995 if (!info->attrs[NL80211_ATTR_STA_WME])
3996 return 0;
3997
3998 nla = info->attrs[NL80211_ATTR_STA_WME];
3999 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4000 nl80211_sta_wme_policy);
4001 if (err)
4002 return err;
4003
4004 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4005 params->uapsd_queues = nla_get_u8(
4006 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4007 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4008 return -EINVAL;
4009
4010 if (tb[NL80211_STA_WME_MAX_SP])
4011 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4012
4013 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4014 return -EINVAL;
4015
4016 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4017
4018 return 0;
4019}
4020
c01fc9ad
SD		 4021static int nl80211_parse_sta_channel_info(struct genl_info *info,
4022 struct station_parameters *params)
4023{
4024 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4025 params->supported_channels =
4026 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4027 params->supported_channels_len =
4028 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4029 /*
4030 * Need to include at least one (first channel, number of
4031 * channels) tuple for each subband, and must have proper
4032 * tuples for the rest of the data as well.
4033 */
4034 if (params->supported_channels_len < 2)
4035 return -EINVAL;
4036 if (params->supported_channels_len % 2)
4037 return -EINVAL;
4038 }
4039
4040 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4041 params->supported_oper_classes =
4042 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4043 params->supported_oper_classes_len =
4044 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4045 /*
4046 * The value of the Length field of the Supported Operating
4047 * Classes element is between 2 and 253.
4048 */
4049 if (params->supported_oper_classes_len < 2 ||
4050 params->supported_oper_classes_len > 253)
4051 return -EINVAL;
4052 }
4053 return 0;
4054}
4055
ff276691
JB		 4056static int nl80211_set_station_tdls(struct genl_info *info,
4057 struct station_parameters *params)
4058{
c01fc9ad 4059 int err;
ff276691 4060 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4061 if (info->attrs[NL80211_ATTR_PEER_AID])
4062 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4063 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4064 params->ht_capa =
4065 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4066 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4067 params->vht_capa =
4068 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4069
c01fc9ad
SD		 4070 err = nl80211_parse_sta_channel_info(info, params);
4071 if (err)
4072 return err;
4073
ff276691
JB		 4074 return nl80211_parse_sta_wme(info, params);
4075}
4076
5727ef1b
JB		 4077static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4078{
4c476991 4079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4080 struct net_device *dev = info->user_ptr[1];
5727ef1b 4081 struct station_parameters params;
77ee7c89
JB		 4082 u8 *mac_addr;
4083 int err;
5727ef1b
JB		 4084
4085 memset(&params, 0, sizeof(params));
4086
4087 params.listen_interval = -1;
4088
77ee7c89
JB		 4089 if (!rdev->ops->change_station)
4090 return -EOPNOTSUPP;
4091
5727ef1b
JB		 4092 if (info->attrs[NL80211_ATTR_STA_AID])
4093 return -EINVAL;
4094
4095 if (!info->attrs[NL80211_ATTR_MAC])
4096 return -EINVAL;
4097
4098 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4099
4100 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4101 params.supported_rates =
4102 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4103 params.supported_rates_len =
4104 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4105 }
4106
9d62a986
JM		 4107 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4108 params.capability =
4109 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4110 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4111 }
4112
4113 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4114 params.ext_capab =
4115 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4116 params.ext_capab_len =
4117 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4118 }
4119
df881293 4120 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4121 return -EINVAL;
36aedc90 4122
bdd3ae3d 4123 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4124 return -EINVAL;
4125
f8bacc21 4126 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4127 params.plink_action =
f8bacc21
JB		 4128 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4129 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4130 return -EINVAL;
4131 }
2ec600d6 4132
f8bacc21 4133 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4134 params.plink_state =
f8bacc21
JB		 4135 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4136 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4137 return -EINVAL;
4138 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4139 }
9c3990aa 4140
3b1c5a53
MP		 4141 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4142 enum nl80211_mesh_power_mode pm = nla_get_u32(
4143 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4144
4145 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4146 pm > NL80211_MESH_POWER_MAX)
4147 return -EINVAL;
4148
4149 params.local_pm = pm;
4150 }
4151
77ee7c89
JB		 4152 /* Include parameters for TDLS peer (will check later) */
4153 err = nl80211_set_station_tdls(info, &params);
4154 if (err)
4155 return err;
4156
4157 params.vlan = get_vlan(info, rdev);
4158 if (IS_ERR(params.vlan))
4159 return PTR_ERR(params.vlan);
4160
a97f4424
JB		 4161 switch (dev->ieee80211_ptr->iftype) {
4162 case NL80211_IFTYPE_AP:
4163 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4164 case NL80211_IFTYPE_P2P_GO:
074ac8df 4165 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4166 case NL80211_IFTYPE_STATION:
267335d6 4167 case NL80211_IFTYPE_ADHOC:
a97f4424 4168 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4169 break;
4170 default:
77ee7c89
JB		 4171 err = -EOPNOTSUPP;
4172 goto out_put_vlan;
034d655e
JB		 4173 }
4174
77ee7c89 4175 /* driver will call cfg80211_check_station_change() */
e35e4d28 4176 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4177
77ee7c89 4178 out_put_vlan:
5727ef1b
JB		 4179 if (params.vlan)
4180 dev_put(params.vlan);
3b85875a 4181
5727ef1b
JB		 4182 return err;
4183}
4184
4185static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4186{
4c476991 4187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4188 int err;
4c476991 4189 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4190 struct station_parameters params;
4191 u8 *mac_addr = NULL;
4192
4193 memset(&params, 0, sizeof(params));
4194
984c311b
JB		 4195 if (!rdev->ops->add_station)
4196 return -EOPNOTSUPP;
4197
5727ef1b
JB		 4198 if (!info->attrs[NL80211_ATTR_MAC])
4199 return -EINVAL;
4200
5727ef1b
JB		 4201 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4202 return -EINVAL;
4203
4204 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4205 return -EINVAL;
4206
5e4b6f56
JM		 4207 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4208 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4209 return -EINVAL;
4210
5727ef1b
JB		 4211 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4212 params.supported_rates =
4213 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4214 params.supported_rates_len =
4215 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4216 params.listen_interval =
4217 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4218
3d124ea2 4219 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4220 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4221 else
4222 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4223 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4224 return -EINVAL;
51b50fbe 4225
9d62a986
JM		 4226 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4227 params.capability =
4228 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4229 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4230 }
4231
4232 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4233 params.ext_capab =
4234 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4235 params.ext_capab_len =
4236 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4237 }
4238
36aedc90
JM		 4239 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4240 params.ht_capa =
4241 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4242
f461be3e
MP		 4243 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4244 params.vht_capa =
4245 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4246
60f4a7b1
MK		 4247 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4248 params.opmode_notif_used = true;
4249 params.opmode_notif =
4250 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4251 }
4252
f8bacc21 4253 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4254 params.plink_action =
f8bacc21
JB		 4255 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4256 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4257 return -EINVAL;
4258 }
96b78dff 4259
c01fc9ad
SD		 4260 err = nl80211_parse_sta_channel_info(info, &params);
4261 if (err)
4262 return err;
4263
ff276691
JB		 4264 err = nl80211_parse_sta_wme(info, &params);
4265 if (err)
4266 return err;
bdd90d5e 4267
bdd3ae3d 4268 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4269 return -EINVAL;
4270
77ee7c89
JB		 4271 /* When you run into this, adjust the code below for the new flag */
4272 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4273
bdd90d5e
JB		 4274 switch (dev->ieee80211_ptr->iftype) {
4275 case NL80211_IFTYPE_AP:
4276 case NL80211_IFTYPE_AP_VLAN:
4277 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4278 /* ignore WME attributes if iface/sta is not capable */
4279 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4280 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4281 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4282
bdd90d5e 4283 /* TDLS peers cannot be added */
3d124ea2
JM		 4284 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4285 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4286 return -EINVAL;
bdd90d5e
JB		 4287 /* but don't bother the driver with it */
4288 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4289
d582cffb
JB		 4290 /* allow authenticated/associated only if driver handles it */
4291 if (!(rdev->wiphy.features &
4292 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4293 params.sta_flags_mask &
4294 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4295 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4296 return -EINVAL;
4297
bdd90d5e
JB		 4298 /* must be last in here for error handling */
4299 params.vlan = get_vlan(info, rdev);
4300 if (IS_ERR(params.vlan))
4301 return PTR_ERR(params.vlan);
4302 break;
4303 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4304 /* ignore uAPSD data */
4305 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4306
d582cffb
JB		 4307 /* associated is disallowed */
4308 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4309 return -EINVAL;
bdd90d5e 4310 /* TDLS peers cannot be added */
3d124ea2
JM		 4311 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4312 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4313 return -EINVAL;
4314 break;
4315 case NL80211_IFTYPE_STATION:
93d08f0b 4316 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4317 /* ignore uAPSD data */
4318 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4319
77ee7c89
JB		 4320 /* these are disallowed */
4321 if (params.sta_flags_mask &
4322 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4323 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4324 return -EINVAL;
bdd90d5e
JB		 4325 /* Only TDLS peers can be added */
4326 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4327 return -EINVAL;
4328 /* Can only add if TDLS ... */
4329 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4330 return -EOPNOTSUPP;
4331 /* ... with external setup is supported */
4332 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4333 return -EOPNOTSUPP;
77ee7c89
JB		 4334 /*
4335 * Older wpa_supplicant versions always mark the TDLS peer
4336 * as authorized, but it shouldn't yet be.
4337 */
4338 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4339 break;
4340 default:
4341 return -EOPNOTSUPP;
c75786c9
EP		 4342 }
4343
bdd90d5e 4344 /* be aware of params.vlan when changing code here */
5727ef1b 4345
e35e4d28 4346 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4347
5727ef1b
JB		 4348 if (params.vlan)
4349 dev_put(params.vlan);
5727ef1b
JB		 4350 return err;
4351}
4352
4353static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4354{
4c476991
JB		 4355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4356 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4357 u8 *mac_addr = NULL;
4358
4359 if (info->attrs[NL80211_ATTR_MAC])
4360 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4361
e80cf853 4362 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4366 return -EINVAL;
5727ef1b 4367
4c476991
JB		 4368 if (!rdev->ops->del_station)
4369 return -EOPNOTSUPP;
3b85875a 4370
e35e4d28 4371 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4372}
4373
15e47304 4374static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4375 int flags, struct net_device *dev,
4376 u8 *dst, u8 *next_hop,
4377 struct mpath_info *pinfo)
4378{
4379 void *hdr;
4380 struct nlattr *pinfoattr;
4381
15e47304 4382 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4383 if (!hdr)
4384 return -1;
4385
9360ffd1
DM		 4386 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4387 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4388 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4389 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4390 goto nla_put_failure;
f5ea9120 4391
2ec600d6
LCC		 4392 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4393 if (!pinfoattr)
4394 goto nla_put_failure;
9360ffd1
DM		 4395 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4396 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4397 pinfo->frame_qlen))
4398 goto nla_put_failure;
4399 if (((pinfo->filled & MPATH_INFO_SN) &&
4400 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4401 ((pinfo->filled & MPATH_INFO_METRIC) &&
4402 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4403 pinfo->metric)) ||
4404 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4405 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4406 pinfo->exptime)) ||
4407 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4408 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4409 pinfo->flags)) ||
4410 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4411 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4412 pinfo->discovery_timeout)) ||
4413 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4414 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4415 pinfo->discovery_retries)))
4416 goto nla_put_failure;
2ec600d6
LCC		 4417
4418 nla_nest_end(msg, pinfoattr);
4419
4420 return genlmsg_end(msg, hdr);
4421
4422 nla_put_failure:
bc3ed28c
TG		 4423 genlmsg_cancel(msg, hdr);
4424 return -EMSGSIZE;
2ec600d6
LCC		 4425}
4426
4427static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4428 struct netlink_callback *cb)
2ec600d6 4429{
2ec600d6 4430 struct mpath_info pinfo;
1b8ec87a 4431 struct cfg80211_registered_device *rdev;
97990a06 4432 struct wireless_dev *wdev;
2ec600d6
LCC		 4433 u8 dst[ETH_ALEN];
4434 u8 next_hop[ETH_ALEN];
97990a06 4435 int path_idx = cb->args[2];
2ec600d6 4436 int err;
2ec600d6 4437
1b8ec87a 4438 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4439 if (err)
4440 return err;
bba95fef 4441
1b8ec87a 4442 if (!rdev->ops->dump_mpath) {
eec60b03 4443 err = -EOPNOTSUPP;
bba95fef
JB		 4444 goto out_err;
4445 }
4446
97990a06 4447 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4448 err = -EOPNOTSUPP;
0448b5fc 4449 goto out_err;
eec60b03
JM		 4450 }
4451
bba95fef 4452 while (1) {
1b8ec87a 4453 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4454 next_hop, &pinfo);
bba95fef 4455 if (err == -ENOENT)
2ec600d6 4456 break;
bba95fef 4457 if (err)
3b85875a 4458 goto out_err;
2ec600d6 4459
15e47304 4460 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4461 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4462 wdev->netdev, dst, next_hop,
bba95fef
JB		 4463 &pinfo) < 0)
4464 goto out;
2ec600d6 4465
bba95fef 4466 path_idx++;
2ec600d6 4467 }
2ec600d6 4468
2ec600d6 4469
bba95fef 4470 out:
97990a06 4471 cb->args[2] = path_idx;
bba95fef 4472 err = skb->len;
bba95fef 4473 out_err:
1b8ec87a 4474 nl80211_finish_wdev_dump(rdev);
bba95fef 4475 return err;
2ec600d6
LCC		 4476}
4477
4478static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4479{
4c476991 4480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4481 int err;
4c476991 4482 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4483 struct mpath_info pinfo;
4484 struct sk_buff *msg;
4485 u8 *dst = NULL;
4486 u8 next_hop[ETH_ALEN];
4487
4488 memset(&pinfo, 0, sizeof(pinfo));
4489
4490 if (!info->attrs[NL80211_ATTR_MAC])
4491 return -EINVAL;
4492
4493 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4494
4c476991
JB		 4495 if (!rdev->ops->get_mpath)
4496 return -EOPNOTSUPP;
2ec600d6 4497
4c476991
JB		 4498 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4499 return -EOPNOTSUPP;
eec60b03 4500
e35e4d28 4501 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4502 if (err)
4c476991 4503 return err;
2ec600d6 4504
fd2120ca 4505 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4506 if (!msg)
4c476991 4507 return -ENOMEM;
2ec600d6 4508
15e47304 4509 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4510 dev, dst, next_hop, &pinfo) < 0) {
4511 nlmsg_free(msg);
4512 return -ENOBUFS;
4513 }
3b85875a 4514
4c476991 4515 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4516}
4517
4518static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4519{
4c476991
JB		 4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4522 u8 *dst = NULL;
4523 u8 *next_hop = NULL;
4524
4525 if (!info->attrs[NL80211_ATTR_MAC])
4526 return -EINVAL;
4527
4528 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4529 return -EINVAL;
4530
4531 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4532 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4533
4c476991
JB		 4534 if (!rdev->ops->change_mpath)
4535 return -EOPNOTSUPP;
35a8efe1 4536
4c476991
JB		 4537 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4538 return -EOPNOTSUPP;
2ec600d6 4539
e35e4d28 4540 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4541}
4c476991 4542
2ec600d6
LCC		 4543static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4544{
4c476991
JB		 4545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4546 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4547 u8 *dst = NULL;
4548 u8 *next_hop = NULL;
4549
4550 if (!info->attrs[NL80211_ATTR_MAC])
4551 return -EINVAL;
4552
4553 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4554 return -EINVAL;
4555
4556 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4557 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4558
4c476991
JB		 4559 if (!rdev->ops->add_mpath)
4560 return -EOPNOTSUPP;
35a8efe1 4561
4c476991
JB		 4562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4563 return -EOPNOTSUPP;
2ec600d6 4564
e35e4d28 4565 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4566}
4567
4568static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4569{
4c476991
JB		 4570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4571 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4572 u8 *dst = NULL;
4573
4574 if (info->attrs[NL80211_ATTR_MAC])
4575 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4576
4c476991
JB		 4577 if (!rdev->ops->del_mpath)
4578 return -EOPNOTSUPP;
3b85875a 4579
e35e4d28 4580 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4581}
4582
9f1ba906
JM		 4583static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4584{
4c476991
JB		 4585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4586 struct net_device *dev = info->user_ptr[1];
c56589ed 4587 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4588 struct bss_parameters params;
c56589ed 4589 int err;
9f1ba906
JM		 4590
4591 memset(&params, 0, sizeof(params));
4592 /* default to not changing parameters */
4593 params.use_cts_prot = -1;
4594 params.use_short_preamble = -1;
4595 params.use_short_slot_time = -1;
fd8aaaf3 4596 params.ap_isolate = -1;
50b12f59 4597 params.ht_opmode = -1;
53cabad7
JB		 4598 params.p2p_ctwindow = -1;
4599 params.p2p_opp_ps = -1;
9f1ba906
JM		 4600
4601 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4602 params.use_cts_prot =
4603 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4604 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4605 params.use_short_preamble =
4606 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4607 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4608 params.use_short_slot_time =
4609 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4610 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4611 params.basic_rates =
4612 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4613 params.basic_rates_len =
4614 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4615 }
fd8aaaf3
FF		 4616 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4617 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4618 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4619 params.ht_opmode =
4620 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4621
53cabad7
JB		 4622 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4623 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4624 return -EINVAL;
4625 params.p2p_ctwindow =
4626 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4627 if (params.p2p_ctwindow < 0)
4628 return -EINVAL;
4629 if (params.p2p_ctwindow != 0 &&
4630 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4631 return -EINVAL;
4632 }
4633
4634 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4635 u8 tmp;
4636
4637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4638 return -EINVAL;
4639 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4640 if (tmp > 1)
4641 return -EINVAL;
4642 params.p2p_opp_ps = tmp;
4643 if (params.p2p_opp_ps &&
4644 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4645 return -EINVAL;
4646 }
4647
4c476991
JB		 4648 if (!rdev->ops->change_bss)
4649 return -EOPNOTSUPP;
9f1ba906 4650
074ac8df 4651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4652 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4653 return -EOPNOTSUPP;
3b85875a 4654
c56589ed
SW		 4655 wdev_lock(wdev);
4656 err = rdev_change_bss(rdev, dev, &params);
4657 wdev_unlock(wdev);
4658
4659 return err;
9f1ba906
JM		 4660}
4661
b54452b0 4662static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4663 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4664 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4665 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4666 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4667 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4668 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4669 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4670};
4671
4672static int parse_reg_rule(struct nlattr *tb[],
4673 struct ieee80211_reg_rule *reg_rule)
4674{
4675 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4676 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4677
4678 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4679 return -EINVAL;
4680 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4681 return -EINVAL;
4682 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4683 return -EINVAL;
b0dfd2ea
JD		 4684 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4685 return -EINVAL;
b2e1b302
LR		 4686 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4687 return -EINVAL;
4688
4689 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4690
4691 freq_range->start_freq_khz =
4692 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4693 freq_range->end_freq_khz =
4694 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4695 freq_range->max_bandwidth_khz =
4696 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4697
4698 power_rule->max_eirp =
4699 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4700
4701 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4702 power_rule->max_antenna_gain =
4703 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4704
089027e5
JD		 4705 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4706 reg_rule->dfs_cac_ms =
4707 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4708
b2e1b302
LR		 4709 return 0;
4710}
4711
4712static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4713{
b2e1b302 4714 char *data = NULL;
57b5ce07 4715 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4716
80778f18
LR		 4717 /*
4718 * You should only get this when cfg80211 hasn't yet initialized
4719 * completely when built-in to the kernel right between the time
4720 * window between nl80211_init() and regulatory_init(), if that is
4721 * even possible.
4722 */
458f4f9e 4723 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4724 return -EINPROGRESS;
80778f18 4725
57b5ce07
LR		 4726 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4727 user_reg_hint_type =
4728 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4729 else
4730 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4731
4732 switch (user_reg_hint_type) {
4733 case NL80211_USER_REG_HINT_USER:
4734 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4735 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4736 return -EINVAL;
4737
4738 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4739 return regulatory_hint_user(data, user_reg_hint_type);
4740 case NL80211_USER_REG_HINT_INDOOR:
4741 return regulatory_hint_indoor_user();
57b5ce07
LR		 4742 default:
4743 return -EINVAL;
4744 }
b2e1b302
LR		 4745}
4746
24bdd9f4 4747static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4748 struct genl_info *info)
93da9cc1 4749{
4c476991 4750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4751 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4752 struct wireless_dev *wdev = dev->ieee80211_ptr;
4753 struct mesh_config cur_params;
4754 int err = 0;
93da9cc1 4755 void *hdr;
4756 struct nlattr *pinfoattr;
4757 struct sk_buff *msg;
4758
29cbe68c
JB		 4759 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4760 return -EOPNOTSUPP;
4761
24bdd9f4 4762 if (!rdev->ops->get_mesh_config)
4c476991 4763 return -EOPNOTSUPP;
f3f92586 4764
29cbe68c
JB		 4765 wdev_lock(wdev);
4766 /* If not connected, get default parameters */
4767 if (!wdev->mesh_id_len)
4768 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4769 else
e35e4d28 4770 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4771 wdev_unlock(wdev);
4772
93da9cc1 4773 if (err)
4c476991 4774 return err;
93da9cc1 4775
4776 /* Draw up a netlink message to send back */
fd2120ca 4777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4778 if (!msg)
4779 return -ENOMEM;
15e47304 4780 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4781 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4782 if (!hdr)
efe1cf0c 4783 goto out;
24bdd9f4 4784 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4785 if (!pinfoattr)
4786 goto nla_put_failure;
9360ffd1
DM		 4787 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4788 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4789 cur_params.dot11MeshRetryTimeout) ||
4790 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4791 cur_params.dot11MeshConfirmTimeout) ||
4792 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4793 cur_params.dot11MeshHoldingTimeout) ||
4794 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4795 cur_params.dot11MeshMaxPeerLinks) ||
4796 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4797 cur_params.dot11MeshMaxRetries) ||
4798 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4799 cur_params.dot11MeshTTL) ||
4800 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4801 cur_params.element_ttl) ||
4802 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4803 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4804 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4805 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4806 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4807 cur_params.dot11MeshHWMPmaxPREQretries) ||
4808 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4809 cur_params.path_refresh_time) ||
4810 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4811 cur_params.min_discovery_timeout) ||
4812 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4813 cur_params.dot11MeshHWMPactivePathTimeout) ||
4814 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4815 cur_params.dot11MeshHWMPpreqMinInterval) ||
4816 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4817 cur_params.dot11MeshHWMPperrMinInterval) ||
4818 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4819 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4820 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4821 cur_params.dot11MeshHWMPRootMode) ||
4822 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4823 cur_params.dot11MeshHWMPRannInterval) ||
4824 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4825 cur_params.dot11MeshGateAnnouncementProtocol) ||
4826 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4827 cur_params.dot11MeshForwarding) ||
4828 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4829 cur_params.rssi_threshold) ||
4830 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4831 cur_params.ht_opmode) ||
4832 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4833 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4834 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4835 cur_params.dot11MeshHWMProotInterval) ||
4836 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4837 cur_params.dot11MeshHWMPconfirmationInterval) ||
4838 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4839 cur_params.power_mode) ||
4840 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4841 cur_params.dot11MeshAwakeWindowDuration) ||
4842 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4843 cur_params.plink_timeout))
9360ffd1 4844 goto nla_put_failure;
93da9cc1 4845 nla_nest_end(msg, pinfoattr);
4846 genlmsg_end(msg, hdr);
4c476991 4847 return genlmsg_reply(msg, info);
93da9cc1 4848
3b85875a 4849 nla_put_failure:
93da9cc1 4850 genlmsg_cancel(msg, hdr);
efe1cf0c 4851 out:
d080e275 4852 nlmsg_free(msg);
4c476991 4853 return -ENOBUFS;
93da9cc1 4854}
4855
b54452b0 4856static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4857 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4858 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4859 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4861 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4862 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4863 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4864 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4865 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4866 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4867 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4868 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4869 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4870 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4871 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4872 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4873 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4874 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4875 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4876 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4877 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4878 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4879 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4880 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4881 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4882 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4883 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4884 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4885};
4886
c80d545d
JC		 4887static const struct nla_policy
4888 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4889 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4890 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4891 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4892 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4893 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4894 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4895 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4896 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4897 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4898};
4899
24bdd9f4 4900static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4901 struct mesh_config *cfg,
4902 u32 *mask_out)
93da9cc1 4903{
93da9cc1 4904 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4905 u32 mask = 0;
93da9cc1 4906
ea54fba2
MP		 4907#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4908do { \
4909 if (tb[attr]) { \
4910 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4911 return -EINVAL; \
4912 cfg->param = fn(tb[attr]); \
4913 mask |= (1 << (attr - 1)); \
4914 } \
4915} while (0)
bd90fdcc
JB		 4916
4917
24bdd9f4 4918 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4919 return -EINVAL;
4920 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4921 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4922 nl80211_meshconf_params_policy))
93da9cc1 4923 return -EINVAL;
4924
93da9cc1 4925 /* This makes sure that there aren't more than 32 mesh config
4926 * parameters (otherwise our bitfield scheme would not work.) */
4927 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4928
4929 /* Fill in the params struct */
ea54fba2 4930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4931 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4932 nla_get_u16);
ea54fba2 4933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4934 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4935 nla_get_u16);
ea54fba2 4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4937 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4938 nla_get_u16);
ea54fba2 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4940 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4941 nla_get_u16);
ea54fba2 4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4943 mask, NL80211_MESHCONF_MAX_RETRIES,
4944 nla_get_u8);
ea54fba2 4945 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4946 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4948 mask, NL80211_MESHCONF_ELEMENT_TTL,
4949 nla_get_u8);
ea54fba2 4950 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4951 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4952 nla_get_u8);
ea54fba2
MP		 4953 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4954 1, 255, mask,
a4f606ea
CYY		 4955 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4956 nla_get_u32);
ea54fba2 4957 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4958 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4959 nla_get_u8);
ea54fba2 4960 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4961 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4962 nla_get_u32);
ea54fba2 4963 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4964 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4965 nla_get_u16);
ea54fba2
MP		 4966 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4967 1, 65535, mask,
a4f606ea
CYY		 4968 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4969 nla_get_u32);
93da9cc1 4970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4971 1, 65535, mask,
4972 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4973 nla_get_u16);
dca7e943 4974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4975 1, 65535, mask,
4976 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4977 nla_get_u16);
93da9cc1 4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4979 dot11MeshHWMPnetDiameterTraversalTime,
4980 1, 65535, mask,
a4f606ea
CYY		 4981 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4982 nla_get_u16);
ea54fba2
MP		 4983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4984 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4985 nla_get_u8);
4986 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4987 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4988 nla_get_u16);
63c5723b 4989 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4990 dot11MeshGateAnnouncementProtocol, 0, 1,
4991 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4992 nla_get_u8);
ea54fba2 4993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4994 mask, NL80211_MESHCONF_FORWARDING,
4995 nla_get_u8);
83374fe9 4996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4997 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4998 nla_get_s32);
ea54fba2 4999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5000 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5001 nla_get_u16);
5002 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5003 1, 65535, mask,
ac1073a6
CYY		 5004 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5005 nla_get_u32);
ea54fba2 5006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5007 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5008 nla_get_u16);
5009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5010 dot11MeshHWMPconfirmationInterval,
5011 1, 65535, mask,
728b19e5 5012 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5013 nla_get_u16);
3b1c5a53
MP		 5014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5015 NL80211_MESH_POWER_ACTIVE,
5016 NL80211_MESH_POWER_MAX,
5017 mask, NL80211_MESHCONF_POWER_MODE,
5018 nla_get_u32);
5019 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5020 0, 65535, mask,
5021 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5023 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5024 nla_get_u32);
bd90fdcc
JB		 5025 if (mask_out)
5026 *mask_out = mask;
c80d545d 5027
bd90fdcc
JB		 5028 return 0;
5029
5030#undef FILL_IN_MESH_PARAM_IF_SET
5031}
5032
c80d545d
JC		 5033static int nl80211_parse_mesh_setup(struct genl_info *info,
5034 struct mesh_setup *setup)
5035{
bb2798d4 5036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5037 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5038
5039 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5040 return -EINVAL;
5041 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5042 info->attrs[NL80211_ATTR_MESH_SETUP],
5043 nl80211_mesh_setup_params_policy))
5044 return -EINVAL;
5045
d299a1f2
JC		 5046 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5047 setup->sync_method =
5048 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5049 IEEE80211_SYNC_METHOD_VENDOR :
5050 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5051
c80d545d
JC		 5052 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5053 setup->path_sel_proto =
5054 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5055 IEEE80211_PATH_PROTOCOL_VENDOR :
5056 IEEE80211_PATH_PROTOCOL_HWMP;
5057
5058 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5059 setup->path_metric =
5060 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5061 IEEE80211_PATH_METRIC_VENDOR :
5062 IEEE80211_PATH_METRIC_AIRTIME;
5063
581a8b0f
JC		 5064
5065 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5066 struct nlattr *ieattr =
581a8b0f 5067 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5068 if (!is_valid_ie_attr(ieattr))
5069 return -EINVAL;
581a8b0f
JC		 5070 setup->ie = nla_data(ieattr);
5071 setup->ie_len = nla_len(ieattr);
c80d545d 5072 }
bb2798d4
TP		 5073 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5074 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5075 return -EINVAL;
5076 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5077 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5078 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5079 if (setup->is_secure)
5080 setup->user_mpm = true;
c80d545d 5081
6e16d90b
CT		 5082 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5083 if (!setup->user_mpm)
5084 return -EINVAL;
5085 setup->auth_id =
5086 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5087 }
5088
c80d545d
JC		 5089 return 0;
5090}
5091
24bdd9f4 5092static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5093 struct genl_info *info)
bd90fdcc
JB		 5094{
5095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5096 struct net_device *dev = info->user_ptr[1];
29cbe68c 5097 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5098 struct mesh_config cfg;
5099 u32 mask;
5100 int err;
5101
29cbe68c
JB		 5102 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5103 return -EOPNOTSUPP;
5104
24bdd9f4 5105 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5106 return -EOPNOTSUPP;
5107
24bdd9f4 5108 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5109 if (err)
5110 return err;
5111
29cbe68c
JB		 5112 wdev_lock(wdev);
5113 if (!wdev->mesh_id_len)
5114 err = -ENOLINK;
5115
5116 if (!err)
e35e4d28 5117 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5118
5119 wdev_unlock(wdev);
5120
5121 return err;
93da9cc1 5122}
5123
f130347c
LR		 5124static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5125{
458f4f9e 5126 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5127 struct sk_buff *msg;
5128 void *hdr = NULL;
5129 struct nlattr *nl_reg_rules;
5130 unsigned int i;
f130347c
LR		 5131
5132 if (!cfg80211_regdomain)
5fe231e8 5133 return -EINVAL;
f130347c 5134
fd2120ca 5135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5136 if (!msg)
5137 return -ENOBUFS;
f130347c 5138
15e47304 5139 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5140 NL80211_CMD_GET_REG);
5141 if (!hdr)
efe1cf0c 5142 goto put_failure;
f130347c 5143
57b5ce07
LR		 5144 if (reg_last_request_cell_base() &&
5145 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5146 NL80211_USER_REG_HINT_CELL_BASE))
5147 goto nla_put_failure;
5148
458f4f9e
JB		 5149 rcu_read_lock();
5150 regdom = rcu_dereference(cfg80211_regdomain);
5151
5152 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5153 (regdom->dfs_region &&
5154 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5155 goto nla_put_failure_rcu;
5156
f130347c
LR		 5157 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5158 if (!nl_reg_rules)
458f4f9e 5159 goto nla_put_failure_rcu;
f130347c 5160
458f4f9e 5161 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5162 struct nlattr *nl_reg_rule;
5163 const struct ieee80211_reg_rule *reg_rule;
5164 const struct ieee80211_freq_range *freq_range;
5165 const struct ieee80211_power_rule *power_rule;
97524820 5166 unsigned int max_bandwidth_khz;
f130347c 5167
458f4f9e 5168 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5169 freq_range = &reg_rule->freq_range;
5170 power_rule = &reg_rule->power_rule;
5171
5172 nl_reg_rule = nla_nest_start(msg, i);
5173 if (!nl_reg_rule)
458f4f9e 5174 goto nla_put_failure_rcu;
f130347c 5175
97524820
JD		 5176 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5177 if (!max_bandwidth_khz)
5178 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5179 reg_rule);
5180
9360ffd1
DM		 5181 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5182 reg_rule->flags) ||
5183 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5184 freq_range->start_freq_khz) ||
5185 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5186 freq_range->end_freq_khz) ||
5187 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5188 max_bandwidth_khz) ||
9360ffd1
DM		 5189 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5190 power_rule->max_antenna_gain) ||
5191 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5192 power_rule->max_eirp) ||
5193 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5194 reg_rule->dfs_cac_ms))
458f4f9e 5195 goto nla_put_failure_rcu;
f130347c
LR		 5196
5197 nla_nest_end(msg, nl_reg_rule);
5198 }
458f4f9e 5199 rcu_read_unlock();
f130347c
LR		 5200
5201 nla_nest_end(msg, nl_reg_rules);
5202
5203 genlmsg_end(msg, hdr);
5fe231e8 5204 return genlmsg_reply(msg, info);
f130347c 5205
458f4f9e
JB		 5206nla_put_failure_rcu:
5207 rcu_read_unlock();
f130347c
LR		 5208nla_put_failure:
5209 genlmsg_cancel(msg, hdr);
efe1cf0c 5210put_failure:
d080e275 5211 nlmsg_free(msg);
5fe231e8 5212 return -EMSGSIZE;
f130347c
LR		 5213}
5214
b2e1b302
LR		 5215static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5216{
5217 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5218 struct nlattr *nl_reg_rule;
5219 char *alpha2 = NULL;
5220 int rem_reg_rules = 0, r = 0;
5221 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5222 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5223 struct ieee80211_regdomain *rd = NULL;
5224
5225 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5226 return -EINVAL;
5227
5228 if (!info->attrs[NL80211_ATTR_REG_RULES])
5229 return -EINVAL;
5230
5231 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5232
8b60b078
LR		 5233 if (info->attrs[NL80211_ATTR_DFS_REGION])
5234 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5235
b2e1b302 5236 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5237 rem_reg_rules) {
b2e1b302
LR		 5238 num_rules++;
5239 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5240 return -EINVAL;
b2e1b302
LR		 5241 }
5242
e438768f
LR		 5243 if (!reg_is_valid_request(alpha2))
5244 return -EINVAL;
5245
b2e1b302 5246 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5247 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5248
5249 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5250 if (!rd)
5251 return -ENOMEM;
b2e1b302
LR		 5252
5253 rd->n_reg_rules = num_rules;
5254 rd->alpha2[0] = alpha2[0];
5255 rd->alpha2[1] = alpha2[1];
5256
8b60b078
LR		 5257 /*
5258 * Disable DFS master mode if the DFS region was
5259 * not supported or known on this kernel.
5260 */
5261 if (reg_supported_dfs_region(dfs_region))
5262 rd->dfs_region = dfs_region;
5263
b2e1b302 5264 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5265 rem_reg_rules) {
ae811e21
JB		 5266 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5267 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5268 reg_rule_policy);
5269 if (r)
5270 goto bad_reg;
b2e1b302
LR		 5271 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5272 if (r)
5273 goto bad_reg;
5274
5275 rule_idx++;
5276
d0e18f83
LR		 5277 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5278 r = -EINVAL;
b2e1b302 5279 goto bad_reg;
d0e18f83 5280 }
b2e1b302
LR		 5281 }
5282
b2e1b302 5283 r = set_regdom(rd);
6913b49a 5284 /* set_regdom took ownership */
1a919318 5285 rd = NULL;
b2e1b302 5286
d2372b31 5287 bad_reg:
b2e1b302 5288 kfree(rd);
d0e18f83 5289 return r;
b2e1b302
LR		 5290}
5291
83f5e2cf
JB		 5292static int validate_scan_freqs(struct nlattr *freqs)
5293{
5294 struct nlattr *attr1, *attr2;
5295 int n_channels = 0, tmp1, tmp2;
5296
5297 nla_for_each_nested(attr1, freqs, tmp1) {
5298 n_channels++;
5299 /*
5300 * Some hardware has a limited channel list for
5301 * scanning, and it is pretty much nonsensical
5302 * to scan for a channel twice, so disallow that
5303 * and don't require drivers to check that the
5304 * channel list they get isn't longer than what
5305 * they can scan, as long as they can scan all
5306 * the channels they registered at once.
5307 */
5308 nla_for_each_nested(attr2, freqs, tmp2)
5309 if (attr1 != attr2 &&
5310 nla_get_u32(attr1) == nla_get_u32(attr2))
5311 return 0;
5312 }
5313
5314 return n_channels;
5315}
5316
2a519311
JB		 5317static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5318{
4c476991 5319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5320 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5321 struct cfg80211_scan_request *request;
2a519311
JB		 5322 struct nlattr *attr;
5323 struct wiphy *wiphy;
83f5e2cf 5324 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5325 size_t ie_len;
2a519311 5326
f4a11bb0
JB		 5327 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5328 return -EINVAL;
5329
79c97e97 5330 wiphy = &rdev->wiphy;
2a519311 5331
4c476991
JB		 5332 if (!rdev->ops->scan)
5333 return -EOPNOTSUPP;
2a519311 5334
f9d15d16 5335 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5336 err = -EBUSY;
5337 goto unlock;
5338 }
2a519311
JB		 5339
5340 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5341 n_channels = validate_scan_freqs(
5342 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5343 if (!n_channels) {
5344 err = -EINVAL;
5345 goto unlock;
5346 }
2a519311 5347 } else {
bdfbec2d 5348 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5349 }
5350
5351 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5352 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5353 n_ssids++;
5354
f9f47529
JB		 5355 if (n_ssids > wiphy->max_scan_ssids) {
5356 err = -EINVAL;
5357 goto unlock;
5358 }
2a519311 5359
70692ad2
JM		 5360 if (info->attrs[NL80211_ATTR_IE])
5361 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5362 else
5363 ie_len = 0;
5364
f9f47529
JB		 5365 if (ie_len > wiphy->max_scan_ie_len) {
5366 err = -EINVAL;
5367 goto unlock;
5368 }
18a83659 5369
2a519311 5370 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5371 + sizeof(*request->ssids) * n_ssids
5372 + sizeof(*request->channels) * n_channels
70692ad2 5373 + ie_len, GFP_KERNEL);
f9f47529
JB		 5374 if (!request) {
5375 err = -ENOMEM;
5376 goto unlock;
5377 }
2a519311 5378
2a519311 5379 if (n_ssids)
5ba63533 5380 request->ssids = (void *)&request->channels[n_channels];
2a519311 5381 request->n_ssids = n_ssids;
70692ad2
JM		 5382 if (ie_len) {
5383 if (request->ssids)
5384 request->ie = (void *)(request->ssids + n_ssids);
5385 else
5386 request->ie = (void *)(request->channels + n_channels);
5387 }
2a519311 5388
584991dc 5389 i = 0;
2a519311
JB		 5390 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5391 /* user specified, bail out if channel not found */
2a519311 5392 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5393 struct ieee80211_channel *chan;
5394
5395 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5396
5397 if (!chan) {
2a519311
JB		 5398 err = -EINVAL;
5399 goto out_free;
5400 }
584991dc
JB		 5401
5402 /* ignore disabled channels */
5403 if (chan->flags & IEEE80211_CHAN_DISABLED)
5404 continue;
5405
5406 request->channels[i] = chan;
2a519311
JB		 5407 i++;
5408 }
5409 } else {
34850ab2
JB		 5410 enum ieee80211_band band;
5411
2a519311 5412 /* all channels */
2a519311
JB		 5413 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5414 int j;
5415 if (!wiphy->bands[band])
5416 continue;
5417 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5418 struct ieee80211_channel *chan;
5419
5420 chan = &wiphy->bands[band]->channels[j];
5421
5422 if (chan->flags & IEEE80211_CHAN_DISABLED)
5423 continue;
5424
5425 request->channels[i] = chan;
2a519311
JB		 5426 i++;
5427 }
5428 }
5429 }
5430
584991dc
JB		 5431 if (!i) {
5432 err = -EINVAL;
5433 goto out_free;
5434 }
5435
5436 request->n_channels = i;
5437
2a519311
JB		 5438 i = 0;
5439 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5440 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5441 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5442 err = -EINVAL;
5443 goto out_free;
5444 }
57a27e1d 5445 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5446 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5447 i++;
5448 }
5449 }
5450
70692ad2
JM		 5451 if (info->attrs[NL80211_ATTR_IE]) {
5452 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5453 memcpy((void *)request->ie,
5454 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5455 request->ie_len);
5456 }
5457
34850ab2 5458 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5459 if (wiphy->bands[i])
5460 request->rates[i] =
5461 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5462
5463 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5464 nla_for_each_nested(attr,
5465 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5466 tmp) {
5467 enum ieee80211_band band = nla_type(attr);
5468
84404623 5469 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5470 err = -EINVAL;
5471 goto out_free;
5472 }
1b09cd82
FF		 5473
5474 if (!wiphy->bands[band])
5475 continue;
5476
34850ab2
JB		 5477 err = ieee80211_get_ratemask(wiphy->bands[band],
5478 nla_data(attr),
5479 nla_len(attr),
5480 &request->rates[band]);
5481 if (err)
5482 goto out_free;
5483 }
5484 }
5485
46856bbf 5486 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5487 request->flags = nla_get_u32(
5488 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5489 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5490 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5491 err = -EOPNOTSUPP;
5492 goto out_free;
5493 }
5494 }
ed473771 5495
e9f935e3
RM		 5496 request->no_cck =
5497 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5498
fd014284 5499 request->wdev = wdev;
79c97e97 5500 request->wiphy = &rdev->wiphy;
15d6030b 5501 request->scan_start = jiffies;
2a519311 5502
79c97e97 5503 rdev->scan_req = request;
e35e4d28 5504 err = rdev_scan(rdev, request);
2a519311 5505
463d0183 5506 if (!err) {
fd014284
JB		 5507 nl80211_send_scan_start(rdev, wdev);
5508 if (wdev->netdev)
5509 dev_hold(wdev->netdev);
4c476991 5510 } else {
2a519311 5511 out_free:
79c97e97 5512 rdev->scan_req = NULL;
2a519311
JB		 5513 kfree(request);
5514 }
3b85875a 5515
f9f47529 5516 unlock:
2a519311
JB		 5517 return err;
5518}
5519
807f8a8c
LC		 5520static int nl80211_start_sched_scan(struct sk_buff *skb,
5521 struct genl_info *info)
5522{
5523 struct cfg80211_sched_scan_request *request;
5524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5525 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5526 struct nlattr *attr;
5527 struct wiphy *wiphy;
a1f1c21c 5528 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5529 u32 interval;
807f8a8c
LC		 5530 enum ieee80211_band band;
5531 size_t ie_len;
a1f1c21c 5532 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5533 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5534
5535 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5536 !rdev->ops->sched_scan_start)
5537 return -EOPNOTSUPP;
5538
5539 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5540 return -EINVAL;
5541
bbe6ad6d
LC		 5542 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5543 return -EINVAL;
5544
5545 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5546 if (interval == 0)
5547 return -EINVAL;
5548
807f8a8c
LC		 5549 wiphy = &rdev->wiphy;
5550
5551 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5552 n_channels = validate_scan_freqs(
5553 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5554 if (!n_channels)
5555 return -EINVAL;
5556 } else {
bdfbec2d 5557 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5558 }
5559
5560 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5561 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5562 tmp)
5563 n_ssids++;
5564
93b6aa69 5565 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5566 return -EINVAL;
5567
ea73cbce
JB		 5568 /*
5569 * First, count the number of 'real' matchsets. Due to an issue with
5570 * the old implementation, matchsets containing only the RSSI attribute
5571 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5572 * RSSI for all matchsets, rather than their own matchset for reporting
5573 * all APs with a strong RSSI. This is needed to be compatible with
5574 * older userspace that treated a matchset with only the RSSI as the
5575 * global RSSI for all other matchsets - if there are other matchsets.
5576 */
5577 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5578 nla_for_each_nested(attr,
5579 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5580 tmp) {
5581 struct nlattr *rssi;
5582
5583 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5584 nla_data(attr), nla_len(attr),
5585 nl80211_match_policy);
5586 if (err)
5587 return err;
5588 /* add other standalone attributes here */
5589 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5590 n_match_sets++;
5591 continue;
5592 }
5593 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5594 if (rssi)
5595 default_match_rssi = nla_get_s32(rssi);
5596 }
5597 }
5598
5599 /* However, if there's no other matchset, add the RSSI one */
5600 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5601 n_match_sets = 1;
a1f1c21c
LC		 5602
5603 if (n_match_sets > wiphy->max_match_sets)
5604 return -EINVAL;
5605
807f8a8c
LC		 5606 if (info->attrs[NL80211_ATTR_IE])
5607 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5608 else
5609 ie_len = 0;
5610
5a865bad 5611 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5612 return -EINVAL;
5613
c10841ca
LC		 5614 if (rdev->sched_scan_req) {
5615 err = -EINPROGRESS;
5616 goto out;
5617 }
5618
807f8a8c 5619 request = kzalloc(sizeof(*request)
a2cd43c5 5620 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5621 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5622 + sizeof(*request->channels) * n_channels
807f8a8c 5623 + ie_len, GFP_KERNEL);
c10841ca
LC		 5624 if (!request) {
5625 err = -ENOMEM;
5626 goto out;
5627 }
807f8a8c
LC		 5628
5629 if (n_ssids)
5630 request->ssids = (void *)&request->channels[n_channels];
5631 request->n_ssids = n_ssids;
5632 if (ie_len) {
5633 if (request->ssids)
5634 request->ie = (void *)(request->ssids + n_ssids);
5635 else
5636 request->ie = (void *)(request->channels + n_channels);
5637 }
5638
a1f1c21c
LC		 5639 if (n_match_sets) {
5640 if (request->ie)
5641 request->match_sets = (void *)(request->ie + ie_len);
5642 else if (request->ssids)
5643 request->match_sets =
5644 (void *)(request->ssids + n_ssids);
5645 else
5646 request->match_sets =
5647 (void *)(request->channels + n_channels);
5648 }
5649 request->n_match_sets = n_match_sets;
5650
807f8a8c
LC		 5651 i = 0;
5652 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5653 /* user specified, bail out if channel not found */
5654 nla_for_each_nested(attr,
5655 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5656 tmp) {
5657 struct ieee80211_channel *chan;
5658
5659 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5660
5661 if (!chan) {
5662 err = -EINVAL;
5663 goto out_free;
5664 }
5665
5666 /* ignore disabled channels */
5667 if (chan->flags & IEEE80211_CHAN_DISABLED)
5668 continue;
5669
5670 request->channels[i] = chan;
5671 i++;
5672 }
5673 } else {
5674 /* all channels */
5675 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5676 int j;
5677 if (!wiphy->bands[band])
5678 continue;
5679 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5680 struct ieee80211_channel *chan;
5681
5682 chan = &wiphy->bands[band]->channels[j];
5683
5684 if (chan->flags & IEEE80211_CHAN_DISABLED)
5685 continue;
5686
5687 request->channels[i] = chan;
5688 i++;
5689 }
5690 }
5691 }
5692
5693 if (!i) {
5694 err = -EINVAL;
5695 goto out_free;
5696 }
5697
5698 request->n_channels = i;
5699
5700 i = 0;
5701 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5702 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5703 tmp) {
57a27e1d 5704 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5705 err = -EINVAL;
5706 goto out_free;
5707 }
57a27e1d 5708 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5709 memcpy(request->ssids[i].ssid, nla_data(attr),
5710 nla_len(attr));
807f8a8c
LC		 5711 i++;
5712 }
5713 }
5714
a1f1c21c
LC		 5715 i = 0;
5716 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5717 nla_for_each_nested(attr,
5718 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5719 tmp) {
88e920b4 5720 struct nlattr *ssid, *rssi;
a1f1c21c 5721
ae811e21
JB		 5722 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5723 nla_data(attr), nla_len(attr),
5724 nl80211_match_policy);
5725 if (err)
5726 goto out_free;
4a4ab0d7 5727 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5728 if (ssid) {
ea73cbce
JB		 5729 if (WARN_ON(i >= n_match_sets)) {
5730 /* this indicates a programming error,
5731 * the loop above should have verified
5732 * things properly
5733 */
5734 err = -EINVAL;
5735 goto out_free;
5736 }
5737
a1f1c21c
LC		 5738 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5739 err = -EINVAL;
5740 goto out_free;
5741 }
5742 memcpy(request->match_sets[i].ssid.ssid,
5743 nla_data(ssid), nla_len(ssid));
5744 request->match_sets[i].ssid.ssid_len =
5745 nla_len(ssid);
ea73cbce
JB		 5746 /* special attribute - old implemenation w/a */
5747 request->match_sets[i].rssi_thold =
5748 default_match_rssi;
5749 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5750 if (rssi)
5751 request->match_sets[i].rssi_thold =
5752 nla_get_s32(rssi);
a1f1c21c
LC		 5753 }
5754 i++;
5755 }
ea73cbce
JB		 5756
5757 /* there was no other matchset, so the RSSI one is alone */
5758 if (i == 0)
5759 request->match_sets[0].rssi_thold = default_match_rssi;
5760
5761 request->min_rssi_thold = INT_MAX;
5762 for (i = 0; i < n_match_sets; i++)
5763 request->min_rssi_thold =
5764 min(request->match_sets[i].rssi_thold,
5765 request->min_rssi_thold);
5766 } else {
5767 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5768 }
5769
9900e484
JB		 5770 if (ie_len) {
5771 request->ie_len = ie_len;
807f8a8c
LC		 5772 memcpy((void *)request->ie,
5773 nla_data(info->attrs[NL80211_ATTR_IE]),
5774 request->ie_len);
5775 }
5776
46856bbf 5777 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5778 request->flags = nla_get_u32(
5779 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5780 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5781 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5782 err = -EOPNOTSUPP;
5783 goto out_free;
5784 }
5785 }
ed473771 5786
807f8a8c
LC		 5787 request->dev = dev;
5788 request->wiphy = &rdev->wiphy;
bbe6ad6d 5789 request->interval = interval;
15d6030b 5790 request->scan_start = jiffies;
807f8a8c 5791
e35e4d28 5792 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5793 if (!err) {
5794 rdev->sched_scan_req = request;
5795 nl80211_send_sched_scan(rdev, dev,
5796 NL80211_CMD_START_SCHED_SCAN);
5797 goto out;
5798 }
5799
5800out_free:
5801 kfree(request);
5802out:
5803 return err;
5804}
5805
5806static int nl80211_stop_sched_scan(struct sk_buff *skb,
5807 struct genl_info *info)
5808{
5809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5810
5811 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5812 !rdev->ops->sched_scan_stop)
5813 return -EOPNOTSUPP;
5814
5fe231e8 5815 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5816}
5817
04f39047
SW		 5818static int nl80211_start_radar_detection(struct sk_buff *skb,
5819 struct genl_info *info)
5820{
5821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5822 struct net_device *dev = info->user_ptr[1];
5823 struct wireless_dev *wdev = dev->ieee80211_ptr;
5824 struct cfg80211_chan_def chandef;
55f7435c 5825 enum nl80211_dfs_regions dfs_region;
31559f35 5826 unsigned int cac_time_ms;
04f39047
SW		 5827 int err;
5828
55f7435c
LR		 5829 dfs_region = reg_get_dfs_region(wdev->wiphy);
5830 if (dfs_region == NL80211_DFS_UNSET)
5831 return -EINVAL;
5832
04f39047
SW		 5833 err = nl80211_parse_chandef(rdev, info, &chandef);
5834 if (err)
5835 return err;
5836
ff311bc1
SW		 5837 if (netif_carrier_ok(dev))
5838 return -EBUSY;
5839
04f39047
SW		 5840 if (wdev->cac_started)
5841 return -EBUSY;
5842
2beb6dab 5843 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5844 wdev->iftype);
04f39047
SW		 5845 if (err < 0)
5846 return err;
5847
5848 if (err == 0)
5849 return -EINVAL;
5850
fe7c3a1f 5851 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5852 return -EINVAL;
5853
5854 if (!rdev->ops->start_radar_detection)
5855 return -EOPNOTSUPP;
5856
31559f35
JD		 5857 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5858 if (WARN_ON(!cac_time_ms))
5859 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5860
5861 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5862 cac_time_ms);
04f39047 5863 if (!err) {
9e0e2961 5864 wdev->chandef = chandef;
04f39047
SW		 5865 wdev->cac_started = true;
5866 wdev->cac_start_time = jiffies;
31559f35 5867 wdev->cac_time_ms = cac_time_ms;
04f39047 5868 }
04f39047
SW		 5869 return err;
5870}
5871
16ef1fe2
SW		 5872static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5873{
5874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5875 struct net_device *dev = info->user_ptr[1];
5876 struct wireless_dev *wdev = dev->ieee80211_ptr;
5877 struct cfg80211_csa_settings params;
5878 /* csa_attrs is defined static to avoid waste of stack size - this
5879 * function is called under RTNL lock, so this should not be a problem.
5880 */
5881 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5882 u8 radar_detect_width = 0;
5883 int err;
ee4bc9e7 5884 bool need_new_beacon = false;
9a774c78 5885 int len, i;
16ef1fe2
SW		 5886
5887 if (!rdev->ops->channel_switch ||
5888 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5889 return -EOPNOTSUPP;
5890
ee4bc9e7
SW		 5891 switch (dev->ieee80211_ptr->iftype) {
5892 case NL80211_IFTYPE_AP:
5893 case NL80211_IFTYPE_P2P_GO:
5894 need_new_beacon = true;
5895
5896 /* useless if AP is not running */
5897 if (!wdev->beacon_interval)
1ff79dfa 5898 return -ENOTCONN;
ee4bc9e7
SW		 5899 break;
5900 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5901 if (!wdev->ssid_len)
5902 return -ENOTCONN;
5903 break;
c6da674a 5904 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5905 if (!wdev->mesh_id_len)
5906 return -ENOTCONN;
ee4bc9e7
SW		 5907 break;
5908 default:
16ef1fe2 5909 return -EOPNOTSUPP;
ee4bc9e7 5910 }
16ef1fe2
SW		 5911
5912 memset(&params, 0, sizeof(params));
5913
5914 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5915 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5916 return -EINVAL;
5917
5918 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5919 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5920 return -EINVAL;
5921
5922 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5923
ee4bc9e7
SW		 5924 if (!need_new_beacon)
5925 goto skip_beacons;
5926
16ef1fe2
SW		 5927 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5928 if (err)
5929 return err;
5930
5931 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5932 info->attrs[NL80211_ATTR_CSA_IES],
5933 nl80211_policy);
5934 if (err)
5935 return err;
5936
5937 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5938 if (err)
5939 return err;
5940
5941 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5942 return -EINVAL;
5943
9a774c78
AO		 5944 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5945 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5946 return -EINVAL;
5947
9a774c78
AO		 5948 params.n_counter_offsets_beacon = len / sizeof(u16);
5949 if (rdev->wiphy.max_num_csa_counters &&
5950 (params.n_counter_offsets_beacon >
5951 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5952 return -EINVAL;
5953
9a774c78
AO		 5954 params.counter_offsets_beacon =
5955 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5956
5957 /* sanity checks - counters should fit and be the same */
5958 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5959 u16 offset = params.counter_offsets_beacon[i];
5960
5961 if (offset >= params.beacon_csa.tail_len)
5962 return -EINVAL;
5963
5964 if (params.beacon_csa.tail[offset] != params.count)
5965 return -EINVAL;
5966 }
5967
16ef1fe2 5968 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5969 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5970 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5971 return -EINVAL;
5972
9a774c78
AO		 5973 params.n_counter_offsets_presp = len / sizeof(u16);
5974 if (rdev->wiphy.max_num_csa_counters &&
5975 (params.n_counter_offsets_beacon >
5976 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5977 return -EINVAL;
9a774c78
AO		 5978
5979 params.counter_offsets_presp =
5980 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5981
5982 /* sanity checks - counters should fit and be the same */
5983 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5984 u16 offset = params.counter_offsets_presp[i];
5985
5986 if (offset >= params.beacon_csa.probe_resp_len)
5987 return -EINVAL;
5988
5989 if (params.beacon_csa.probe_resp[offset] !=
5990 params.count)
5991 return -EINVAL;
5992 }
16ef1fe2
SW		 5993 }
5994
ee4bc9e7 5995skip_beacons:
16ef1fe2
SW		 5996 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5997 if (err)
5998 return err;
5999
174e0cd2
IP		 6000 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6001 wdev->iftype))
16ef1fe2
SW		 6002 return -EINVAL;
6003
2beb6dab
LC		 6004 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6005 &params.chandef,
6006 wdev->iftype);
6007 if (err < 0)
6008 return err;
6009
6010 if (err > 0) {
6011 radar_detect_width = BIT(params.chandef.width);
6012 params.radar_required = true;
16ef1fe2
SW		 6013 }
6014
73de86a3
LC		 6015 /* TODO: I left this here for now. With channel switch, the
6016 * verification is a bit more complicated, because we only do
6017 * it later when the channel switch really happens.
6018 */
16ef1fe2
SW		 6019 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
6020 params.chandef.chan,
6021 CHAN_MODE_SHARED,
6022 radar_detect_width);
6023 if (err)
6024 return err;
6025
6026 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6027 params.block_tx = true;
6028
c56589ed
SW		 6029 wdev_lock(wdev);
6030 err = rdev_channel_switch(rdev, dev, &params);
6031 wdev_unlock(wdev);
6032
6033 return err;
16ef1fe2
SW		 6034}
6035
9720bb3a
JB		 6036static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6037 u32 seq, int flags,
2a519311 6038 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6039 struct wireless_dev *wdev,
6040 struct cfg80211_internal_bss *intbss)
2a519311 6041{
48ab905d 6042 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6043 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6044 void *hdr;
6045 struct nlattr *bss;
8cef2c9d 6046 bool tsf = false;
48ab905d
JB		 6047
6048 ASSERT_WDEV_LOCK(wdev);
2a519311 6049
15e47304 6050 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6051 NL80211_CMD_NEW_SCAN_RESULTS);
6052 if (!hdr)
6053 return -1;
6054
9720bb3a
JB		 6055 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6056
97990a06
JB		 6057 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6058 goto nla_put_failure;
6059 if (wdev->netdev &&
9360ffd1
DM		 6060 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6061 goto nla_put_failure;
97990a06
JB		 6062 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6063 goto nla_put_failure;
2a519311
JB		 6064
6065 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6066 if (!bss)
6067 goto nla_put_failure;
9360ffd1 6068 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6069 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6070 goto nla_put_failure;
9caf0364
JB		 6071
6072 rcu_read_lock();
6073 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6074 if (ies) {
6075 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6076 goto fail_unlock_rcu;
6077 tsf = true;
6078 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6079 ies->len, ies->data))
6080 goto fail_unlock_rcu;
9caf0364
JB		 6081 }
6082 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6083 if (ies) {
6084 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6085 goto fail_unlock_rcu;
6086 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6087 ies->len, ies->data))
6088 goto fail_unlock_rcu;
9caf0364
JB		 6089 }
6090 rcu_read_unlock();
6091
9360ffd1
DM		 6092 if (res->beacon_interval &&
6093 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6094 goto nla_put_failure;
6095 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6096 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6097 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6098 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6099 jiffies_to_msecs(jiffies - intbss->ts)))
6100 goto nla_put_failure;
2a519311 6101
77965c97 6102 switch (rdev->wiphy.signal_type) {
2a519311 6103 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6104 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6105 goto nla_put_failure;
2a519311
JB		 6106 break;
6107 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6108 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6109 goto nla_put_failure;
2a519311
JB		 6110 break;
6111 default:
6112 break;
6113 }
6114
48ab905d 6115 switch (wdev->iftype) {
074ac8df 6116 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6117 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6118 if (intbss == wdev->current_bss &&
6119 nla_put_u32(msg, NL80211_BSS_STATUS,
6120 NL80211_BSS_STATUS_ASSOCIATED))
6121 goto nla_put_failure;
48ab905d
JB		 6122 break;
6123 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6124 if (intbss == wdev->current_bss &&
6125 nla_put_u32(msg, NL80211_BSS_STATUS,
6126 NL80211_BSS_STATUS_IBSS_JOINED))
6127 goto nla_put_failure;
48ab905d
JB		 6128 break;
6129 default:
6130 break;
6131 }
6132
2a519311
JB		 6133 nla_nest_end(msg, bss);
6134
6135 return genlmsg_end(msg, hdr);
6136
8cef2c9d
JB		 6137 fail_unlock_rcu:
6138 rcu_read_unlock();
2a519311
JB		 6139 nla_put_failure:
6140 genlmsg_cancel(msg, hdr);
6141 return -EMSGSIZE;
6142}
6143
97990a06 6144static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6145{
48ab905d 6146 struct cfg80211_registered_device *rdev;
2a519311 6147 struct cfg80211_internal_bss *scan;
48ab905d 6148 struct wireless_dev *wdev;
97990a06 6149 int start = cb->args[2], idx = 0;
2a519311
JB		 6150 int err;
6151
97990a06 6152 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6153 if (err)
6154 return err;
2a519311 6155
48ab905d
JB		 6156 wdev_lock(wdev);
6157 spin_lock_bh(&rdev->bss_lock);
6158 cfg80211_bss_expire(rdev);
6159
9720bb3a
JB		 6160 cb->seq = rdev->bss_generation;
6161
48ab905d 6162 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6163 if (++idx <= start)
6164 continue;
9720bb3a 6165 if (nl80211_send_bss(skb, cb,
2a519311 6166 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6167 rdev, wdev, scan) < 0) {
2a519311 6168 idx--;
67748893 6169 break;
2a519311
JB		 6170 }
6171 }
6172
48ab905d
JB		 6173 spin_unlock_bh(&rdev->bss_lock);
6174 wdev_unlock(wdev);
2a519311 6175
97990a06
JB		 6176 cb->args[2] = idx;
6177 nl80211_finish_wdev_dump(rdev);
2a519311 6178
67748893 6179 return skb->len;
2a519311
JB		 6180}
6181
15e47304 6182static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6183 int flags, struct net_device *dev,
6184 struct survey_info *survey)
6185{
6186 void *hdr;
6187 struct nlattr *infoattr;
6188
15e47304 6189 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6190 NL80211_CMD_NEW_SURVEY_RESULTS);
6191 if (!hdr)
6192 return -ENOMEM;
6193
9360ffd1
DM		 6194 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6195 goto nla_put_failure;
61fa713c
HS		 6196
6197 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6198 if (!infoattr)
6199 goto nla_put_failure;
6200
9360ffd1
DM		 6201 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6202 survey->channel->center_freq))
6203 goto nla_put_failure;
6204
6205 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6206 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6207 goto nla_put_failure;
6208 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6209 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6210 goto nla_put_failure;
6211 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6212 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6213 survey->channel_time))
6214 goto nla_put_failure;
6215 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6216 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6217 survey->channel_time_busy))
6218 goto nla_put_failure;
6219 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6220 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6221 survey->channel_time_ext_busy))
6222 goto nla_put_failure;
6223 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6224 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6225 survey->channel_time_rx))
6226 goto nla_put_failure;
6227 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6228 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6229 survey->channel_time_tx))
6230 goto nla_put_failure;
61fa713c
HS		 6231
6232 nla_nest_end(msg, infoattr);
6233
6234 return genlmsg_end(msg, hdr);
6235
6236 nla_put_failure:
6237 genlmsg_cancel(msg, hdr);
6238 return -EMSGSIZE;
6239}
6240
6241static int nl80211_dump_survey(struct sk_buff *skb,
6242 struct netlink_callback *cb)
6243{
6244 struct survey_info survey;
1b8ec87a 6245 struct cfg80211_registered_device *rdev;
97990a06
JB		 6246 struct wireless_dev *wdev;
6247 int survey_idx = cb->args[2];
61fa713c
HS		 6248 int res;
6249
1b8ec87a 6250 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6251 if (res)
6252 return res;
61fa713c 6253
97990a06
JB		 6254 if (!wdev->netdev) {
6255 res = -EINVAL;
6256 goto out_err;
6257 }
6258
1b8ec87a 6259 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6260 res = -EOPNOTSUPP;
6261 goto out_err;
6262 }
6263
6264 while (1) {
180cdc79
LR		 6265 struct ieee80211_channel *chan;
6266
1b8ec87a 6267 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6268 if (res == -ENOENT)
6269 break;
6270 if (res)
6271 goto out_err;
6272
180cdc79
LR		 6273 /* Survey without a channel doesn't make sense */
6274 if (!survey.channel) {
6275 res = -EINVAL;
6276 goto out;
6277 }
6278
1b8ec87a 6279 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6280 survey.channel->center_freq);
6281 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6282 survey_idx++;
6283 continue;
6284 }
6285
61fa713c 6286 if (nl80211_send_survey(skb,
15e47304 6287 NETLINK_CB(cb->skb).portid,
61fa713c 6288 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6289 wdev->netdev, &survey) < 0)
61fa713c
HS		 6290 goto out;
6291 survey_idx++;
6292 }
6293
6294 out:
97990a06 6295 cb->args[2] = survey_idx;
61fa713c
HS		 6296 res = skb->len;
6297 out_err:
1b8ec87a 6298 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6299 return res;
6300}
6301
b23aa676
SO		 6302static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6303{
6304 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6305 NL80211_WPA_VERSION_2));
6306}
6307
636a5d36
JM		 6308static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6309{
4c476991
JB		 6310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6311 struct net_device *dev = info->user_ptr[1];
19957bb3 6312 struct ieee80211_channel *chan;
e39e5b5e
JM		 6313 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6314 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6315 enum nl80211_auth_type auth_type;
fffd0934 6316 struct key_parse key;
d5cdfacb 6317 bool local_state_change;
636a5d36 6318
f4a11bb0
JB		 6319 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6320 return -EINVAL;
6321
6322 if (!info->attrs[NL80211_ATTR_MAC])
6323 return -EINVAL;
6324
1778092e
JM		 6325 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6326 return -EINVAL;
6327
19957bb3
JB		 6328 if (!info->attrs[NL80211_ATTR_SSID])
6329 return -EINVAL;
6330
6331 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6332 return -EINVAL;
6333
fffd0934
JB		 6334 err = nl80211_parse_key(info, &key);
6335 if (err)
6336 return err;
6337
6338 if (key.idx >= 0) {
e31b8213
JB		 6339 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6340 return -EINVAL;
fffd0934
JB		 6341 if (!key.p.key || !key.p.key_len)
6342 return -EINVAL;
6343 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6344 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6345 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6346 key.p.key_len != WLAN_KEY_LEN_WEP104))
6347 return -EINVAL;
6348 if (key.idx > 4)
6349 return -EINVAL;
6350 } else {
6351 key.p.key_len = 0;
6352 key.p.key = NULL;
6353 }
6354
afea0b7a
JB		 6355 if (key.idx >= 0) {
6356 int i;
6357 bool ok = false;
6358 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6359 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6360 ok = true;
6361 break;
6362 }
6363 }
4c476991
JB		 6364 if (!ok)
6365 return -EINVAL;
afea0b7a
JB		 6366 }
6367
4c476991
JB		 6368 if (!rdev->ops->auth)
6369 return -EOPNOTSUPP;
636a5d36 6370
074ac8df 6371 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6372 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6373 return -EOPNOTSUPP;
eec60b03 6374
19957bb3 6375 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6376 chan = nl80211_get_valid_chan(&rdev->wiphy,
6377 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6378 if (!chan)
4c476991 6379 return -EINVAL;
636a5d36 6380
19957bb3
JB		 6381 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6382 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6383
6384 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6385 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6386 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6387 }
6388
19957bb3 6389 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6390 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6391 return -EINVAL;
636a5d36 6392
e39e5b5e
JM		 6393 if (auth_type == NL80211_AUTHTYPE_SAE &&
6394 !info->attrs[NL80211_ATTR_SAE_DATA])
6395 return -EINVAL;
6396
6397 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6398 if (auth_type != NL80211_AUTHTYPE_SAE)
6399 return -EINVAL;
6400 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6401 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6402 /* need to include at least Auth Transaction and Status Code */
6403 if (sae_data_len < 4)
6404 return -EINVAL;
6405 }
6406
d5cdfacb
JM		 6407 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6408
95de817b
JB		 6409 /*
6410 * Since we no longer track auth state, ignore
6411 * requests to only change local state.
6412 */
6413 if (local_state_change)
6414 return 0;
6415
91bf9b26
JB		 6416 wdev_lock(dev->ieee80211_ptr);
6417 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6418 ssid, ssid_len, ie, ie_len,
6419 key.p.key, key.p.key_len, key.idx,
6420 sae_data, sae_data_len);
6421 wdev_unlock(dev->ieee80211_ptr);
6422 return err;
636a5d36
JM		 6423}
6424
c0692b8f
JB		 6425static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6426 struct genl_info *info,
3dc27d25
JB		 6427 struct cfg80211_crypto_settings *settings,
6428 int cipher_limit)
b23aa676 6429{
c0b2bbd8
JB		 6430 memset(settings, 0, sizeof(*settings));
6431
b23aa676
SO		 6432 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6433
c0692b8f
JB		 6434 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6435 u16 proto;
6436 proto = nla_get_u16(
6437 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6438 settings->control_port_ethertype = cpu_to_be16(proto);
6439 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6440 proto != ETH_P_PAE)
6441 return -EINVAL;
6442 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6443 settings->control_port_no_encrypt = true;
6444 } else
6445 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6446
b23aa676
SO		 6447 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6448 void *data;
6449 int len, i;
6450
6451 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6452 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6453 settings->n_ciphers_pairwise = len / sizeof(u32);
6454
6455 if (len % sizeof(u32))
6456 return -EINVAL;
6457
3dc27d25 6458 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6459 return -EINVAL;
6460
6461 memcpy(settings->ciphers_pairwise, data, len);
6462
6463 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6464 if (!cfg80211_supported_cipher_suite(
6465 &rdev->wiphy,
b23aa676
SO		 6466 settings->ciphers_pairwise[i]))
6467 return -EINVAL;
6468 }
6469
6470 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6471 settings->cipher_group =
6472 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6473 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6474 settings->cipher_group))
b23aa676
SO		 6475 return -EINVAL;
6476 }
6477
6478 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6479 settings->wpa_versions =
6480 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6481 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6482 return -EINVAL;
6483 }
6484
6485 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6486 void *data;
6d30240e 6487 int len;
b23aa676
SO		 6488
6489 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6490 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6491 settings->n_akm_suites = len / sizeof(u32);
6492
6493 if (len % sizeof(u32))
6494 return -EINVAL;
6495
1b9ca027
JM		 6496 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6497 return -EINVAL;
6498
b23aa676 6499 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6500 }
6501
6502 return 0;
6503}
6504
636a5d36
JM		 6505static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6506{
4c476991
JB		 6507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6508 struct net_device *dev = info->user_ptr[1];
f444de05 6509 struct ieee80211_channel *chan;
f62fab73
JB		 6510 struct cfg80211_assoc_request req = {};
6511 const u8 *bssid, *ssid;
6512 int err, ssid_len = 0;
636a5d36 6513
f4a11bb0
JB		 6514 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6515 return -EINVAL;
6516
6517 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6518 !info->attrs[NL80211_ATTR_SSID] ||
6519 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6520 return -EINVAL;
6521
4c476991
JB		 6522 if (!rdev->ops->assoc)
6523 return -EOPNOTSUPP;
636a5d36 6524
074ac8df 6525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6526 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6527 return -EOPNOTSUPP;
eec60b03 6528
19957bb3 6529 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6530
664834de
JM		 6531 chan = nl80211_get_valid_chan(&rdev->wiphy,
6532 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6533 if (!chan)
4c476991 6534 return -EINVAL;
636a5d36 6535
19957bb3
JB		 6536 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6537 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6538
6539 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6540 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6541 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6542 }
6543
dc6382ce 6544 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6545 enum nl80211_mfp mfp =
dc6382ce 6546 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6547 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6548 req.use_mfp = true;
4c476991
JB		 6549 else if (mfp != NL80211_MFP_NO)
6550 return -EINVAL;
dc6382ce
JM		 6551 }
6552
3e5d7649 6553 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6554 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6555
7e7c8926 6556 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6557 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6558
6559 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6560 memcpy(&req.ht_capa_mask,
6561 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6562 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6563
6564 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6565 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6566 return -EINVAL;
f62fab73
JB		 6567 memcpy(&req.ht_capa,
6568 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6569 sizeof(req.ht_capa));
7e7c8926
BG		 6570 }
6571
ee2aca34 6572 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6573 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6574
6575 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6576 memcpy(&req.vht_capa_mask,
6577 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6578 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6579
6580 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6581 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6582 return -EINVAL;
f62fab73
JB		 6583 memcpy(&req.vht_capa,
6584 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6585 sizeof(req.vht_capa));
ee2aca34
JB		 6586 }
6587
f62fab73 6588 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6589 if (!err) {
6590 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6591 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6592 ssid, ssid_len, &req);
91bf9b26
JB		 6593 wdev_unlock(dev->ieee80211_ptr);
6594 }
636a5d36 6595
636a5d36
JM		 6596 return err;
6597}
6598
6599static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6600{
4c476991
JB		 6601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6602 struct net_device *dev = info->user_ptr[1];
19957bb3 6603 const u8 *ie = NULL, *bssid;
91bf9b26 6604 int ie_len = 0, err;
19957bb3 6605 u16 reason_code;
d5cdfacb 6606 bool local_state_change;
636a5d36 6607
f4a11bb0
JB		 6608 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6609 return -EINVAL;
6610
6611 if (!info->attrs[NL80211_ATTR_MAC])
6612 return -EINVAL;
6613
6614 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6615 return -EINVAL;
6616
4c476991
JB		 6617 if (!rdev->ops->deauth)
6618 return -EOPNOTSUPP;
636a5d36 6619
074ac8df 6620 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6621 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6622 return -EOPNOTSUPP;
eec60b03 6623
19957bb3 6624 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6625
19957bb3
JB		 6626 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6627 if (reason_code == 0) {
f4a11bb0 6628 /* Reason Code 0 is reserved */
4c476991 6629 return -EINVAL;
255e737e 6630 }
636a5d36
JM		 6631
6632 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6633 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6634 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6635 }
6636
d5cdfacb
JM		 6637 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6638
91bf9b26
JB		 6639 wdev_lock(dev->ieee80211_ptr);
6640 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6641 local_state_change);
6642 wdev_unlock(dev->ieee80211_ptr);
6643 return err;
636a5d36
JM		 6644}
6645
6646static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6647{
4c476991
JB		 6648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6649 struct net_device *dev = info->user_ptr[1];
19957bb3 6650 const u8 *ie = NULL, *bssid;
91bf9b26 6651 int ie_len = 0, err;
19957bb3 6652 u16 reason_code;
d5cdfacb 6653 bool local_state_change;
636a5d36 6654
f4a11bb0
JB		 6655 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6656 return -EINVAL;
6657
6658 if (!info->attrs[NL80211_ATTR_MAC])
6659 return -EINVAL;
6660
6661 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6662 return -EINVAL;
6663
4c476991
JB		 6664 if (!rdev->ops->disassoc)
6665 return -EOPNOTSUPP;
636a5d36 6666
074ac8df 6667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6668 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6669 return -EOPNOTSUPP;
eec60b03 6670
19957bb3 6671 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6672
19957bb3
JB		 6673 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6674 if (reason_code == 0) {
f4a11bb0 6675 /* Reason Code 0 is reserved */
4c476991 6676 return -EINVAL;
255e737e 6677 }
636a5d36
JM		 6678
6679 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6680 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6681 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6682 }
6683
d5cdfacb
JM		 6684 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6685
91bf9b26
JB		 6686 wdev_lock(dev->ieee80211_ptr);
6687 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6688 local_state_change);
6689 wdev_unlock(dev->ieee80211_ptr);
6690 return err;
636a5d36
JM		 6691}
6692
dd5b4cc7
FF		 6693static bool
6694nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6695 int mcast_rate[IEEE80211_NUM_BANDS],
6696 int rateval)
6697{
6698 struct wiphy *wiphy = &rdev->wiphy;
6699 bool found = false;
6700 int band, i;
6701
6702 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6703 struct ieee80211_supported_band *sband;
6704
6705 sband = wiphy->bands[band];
6706 if (!sband)
6707 continue;
6708
6709 for (i = 0; i < sband->n_bitrates; i++) {
6710 if (sband->bitrates[i].bitrate == rateval) {
6711 mcast_rate[band] = i + 1;
6712 found = true;
6713 break;
6714 }
6715 }
6716 }
6717
6718 return found;
6719}
6720
04a773ad
JB		 6721static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6722{
4c476991
JB		 6723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6724 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6725 struct cfg80211_ibss_params ibss;
6726 struct wiphy *wiphy;
fffd0934 6727 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6728 int err;
6729
8e30bc55
JB		 6730 memset(&ibss, 0, sizeof(ibss));
6731
04a773ad
JB		 6732 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6733 return -EINVAL;
6734
683b6d3b 6735 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6736 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6737 return -EINVAL;
6738
8e30bc55
JB		 6739 ibss.beacon_interval = 100;
6740
6741 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6742 ibss.beacon_interval =
6743 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6744 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6745 return -EINVAL;
6746 }
6747
4c476991
JB		 6748 if (!rdev->ops->join_ibss)
6749 return -EOPNOTSUPP;
04a773ad 6750
4c476991
JB		 6751 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6752 return -EOPNOTSUPP;
04a773ad 6753
79c97e97 6754 wiphy = &rdev->wiphy;
04a773ad 6755
39193498 6756 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6757 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6758
6759 if (!is_valid_ether_addr(ibss.bssid))
6760 return -EINVAL;
6761 }
04a773ad
JB		 6762 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6763 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6764
6765 if (info->attrs[NL80211_ATTR_IE]) {
6766 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6767 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6768 }
6769
683b6d3b
JB		 6770 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6771 if (err)
6772 return err;
04a773ad 6773
174e0cd2
IP		 6774 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6775 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6776 return -EINVAL;
6777
2f301ab2 6778 switch (ibss.chandef.width) {
bf372645
SW		 6779 case NL80211_CHAN_WIDTH_5:
6780 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6781 case NL80211_CHAN_WIDTH_20_NOHT:
6782 break;
6783 case NL80211_CHAN_WIDTH_20:
6784 case NL80211_CHAN_WIDTH_40:
6785 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6786 break;
6787 default:
c04d6150 6788 return -EINVAL;
2f301ab2 6789 }
db9c64cf 6790
04a773ad 6791 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6792 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6793
fbd2c8dc
TP		 6794 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6795 u8 *rates =
6796 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6797 int n_rates =
6798 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6799 struct ieee80211_supported_band *sband =
683b6d3b 6800 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6801
34850ab2
JB		 6802 err = ieee80211_get_ratemask(sband, rates, n_rates,
6803 &ibss.basic_rates);
6804 if (err)
6805 return err;
fbd2c8dc 6806 }
dd5b4cc7 6807
803768f5
SW		 6808 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6809 memcpy(&ibss.ht_capa_mask,
6810 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6811 sizeof(ibss.ht_capa_mask));
6812
6813 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6814 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6815 return -EINVAL;
6816 memcpy(&ibss.ht_capa,
6817 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6818 sizeof(ibss.ht_capa));
6819 }
6820
dd5b4cc7
FF		 6821 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6822 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6823 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6824 return -EINVAL;
fbd2c8dc 6825
4c476991 6826 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6827 bool no_ht = false;
6828
4c476991 6829 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6830 info->attrs[NL80211_ATTR_KEYS],
6831 &no_ht);
4c476991
JB		 6832 if (IS_ERR(connkeys))
6833 return PTR_ERR(connkeys);
de7044ee 6834
3d9d1d66
JB		 6835 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6836 no_ht) {
de7044ee
SM		 6837 kfree(connkeys);
6838 return -EINVAL;
6839 }
4c476991 6840 }
04a773ad 6841
267335d6
AQ		 6842 ibss.control_port =
6843 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6844
5336fa88
SW		 6845 ibss.userspace_handles_dfs =
6846 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6847
4c476991 6848 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6849 if (err)
6850 kfree(connkeys);
04a773ad
JB		 6851 return err;
6852}
6853
6854static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6855{
4c476991
JB		 6856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6857 struct net_device *dev = info->user_ptr[1];
04a773ad 6858
4c476991
JB		 6859 if (!rdev->ops->leave_ibss)
6860 return -EOPNOTSUPP;
04a773ad 6861
4c476991
JB		 6862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6863 return -EOPNOTSUPP;
04a773ad 6864
4c476991 6865 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6866}
6867
f4e583c8
AQ		 6868static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6869{
6870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6871 struct net_device *dev = info->user_ptr[1];
6872 int mcast_rate[IEEE80211_NUM_BANDS];
6873 u32 nla_rate;
6874 int err;
6875
6876 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6877 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6878 return -EOPNOTSUPP;
6879
6880 if (!rdev->ops->set_mcast_rate)
6881 return -EOPNOTSUPP;
6882
6883 memset(mcast_rate, 0, sizeof(mcast_rate));
6884
6885 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6886 return -EINVAL;
6887
6888 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6889 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6890 return -EINVAL;
6891
6892 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6893
6894 return err;
6895}
6896
ad7e718c
JB		 6897static struct sk_buff *
6898__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6899 int approxlen, u32 portid, u32 seq,
6900 enum nl80211_commands cmd,
567ffc35
JB		 6901 enum nl80211_attrs attr,
6902 const struct nl80211_vendor_cmd_info *info,
6903 gfp_t gfp)
ad7e718c
JB		 6904{
6905 struct sk_buff *skb;
6906 void *hdr;
6907 struct nlattr *data;
6908
6909 skb = nlmsg_new(approxlen + 100, gfp);
6910 if (!skb)
6911 return NULL;
6912
6913 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6914 if (!hdr) {
6915 kfree_skb(skb);
6916 return NULL;
6917 }
6918
6919 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6920 goto nla_put_failure;
567ffc35
JB		 6921
6922 if (info) {
6923 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6924 info->vendor_id))
6925 goto nla_put_failure;
6926 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6927 info->subcmd))
6928 goto nla_put_failure;
6929 }
6930
ad7e718c
JB		 6931 data = nla_nest_start(skb, attr);
6932
6933 ((void **)skb->cb)[0] = rdev;
6934 ((void **)skb->cb)[1] = hdr;
6935 ((void **)skb->cb)[2] = data;
6936
6937 return skb;
6938
6939 nla_put_failure:
6940 kfree_skb(skb);
6941 return NULL;
6942}
f4e583c8 6943
e03ad6ea
JB		 6944struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6945 enum nl80211_commands cmd,
6946 enum nl80211_attrs attr,
6947 int vendor_event_idx,
6948 int approxlen, gfp_t gfp)
6949{
f26cbf40 6950 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6951 const struct nl80211_vendor_cmd_info *info;
6952
6953 switch (cmd) {
6954 case NL80211_CMD_TESTMODE:
6955 if (WARN_ON(vendor_event_idx != -1))
6956 return NULL;
6957 info = NULL;
6958 break;
6959 case NL80211_CMD_VENDOR:
6960 if (WARN_ON(vendor_event_idx < 0 ||
6961 vendor_event_idx >= wiphy->n_vendor_events))
6962 return NULL;
6963 info = &wiphy->vendor_events[vendor_event_idx];
6964 break;
6965 default:
6966 WARN_ON(1);
6967 return NULL;
6968 }
6969
6970 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6971 cmd, attr, info, gfp);
6972}
6973EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6974
6975void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6976{
6977 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6978 void *hdr = ((void **)skb->cb)[1];
6979 struct nlattr *data = ((void **)skb->cb)[2];
6980 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6981
6982 nla_nest_end(skb, data);
6983 genlmsg_end(skb, hdr);
6984
6985 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6986 mcgrp = NL80211_MCGRP_VENDOR;
6987
6988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6989 mcgrp, gfp);
6990}
6991EXPORT_SYMBOL(__cfg80211_send_event_skb);
6992
aff89a9b 6993#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6994static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6995{
4c476991 6996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6997 struct wireless_dev *wdev =
6998 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6999 int err;
7000
fc73f11f
DS		 7001 if (!rdev->ops->testmode_cmd)
7002 return -EOPNOTSUPP;
7003
7004 if (IS_ERR(wdev)) {
7005 err = PTR_ERR(wdev);
7006 if (err != -EINVAL)
7007 return err;
7008 wdev = NULL;
7009 } else if (wdev->wiphy != &rdev->wiphy) {
7010 return -EINVAL;
7011 }
7012
aff89a9b
JB		 7013 if (!info->attrs[NL80211_ATTR_TESTDATA])
7014 return -EINVAL;
7015
ad7e718c 7016 rdev->cur_cmd_info = info;
fc73f11f 7017 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7018 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7019 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7020 rdev->cur_cmd_info = NULL;
aff89a9b 7021
aff89a9b
JB		 7022 return err;
7023}
7024
71063f0e
WYG		 7025static int nl80211_testmode_dump(struct sk_buff *skb,
7026 struct netlink_callback *cb)
7027{
00918d33 7028 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7029 int err;
7030 long phy_idx;
7031 void *data = NULL;
7032 int data_len = 0;
7033
5fe231e8
JB		 7034 rtnl_lock();
7035
71063f0e
WYG		 7036 if (cb->args[0]) {
7037 /*
7038 * 0 is a valid index, but not valid for args[0],
7039 * so we need to offset by 1.
7040 */
7041 phy_idx = cb->args[0] - 1;
7042 } else {
7043 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7044 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7045 nl80211_policy);
7046 if (err)
5fe231e8 7047 goto out_err;
00918d33 7048
2bd7e35d
JB		 7049 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7050 nl80211_fam.attrbuf);
7051 if (IS_ERR(rdev)) {
5fe231e8
JB		 7052 err = PTR_ERR(rdev);
7053 goto out_err;
00918d33 7054 }
2bd7e35d
JB		 7055 phy_idx = rdev->wiphy_idx;
7056 rdev = NULL;
2bd7e35d 7057
71063f0e
WYG		 7058 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7059 cb->args[1] =
7060 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7061 }
7062
7063 if (cb->args[1]) {
7064 data = nla_data((void *)cb->args[1]);
7065 data_len = nla_len((void *)cb->args[1]);
7066 }
7067
00918d33
JB		 7068 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7069 if (!rdev) {
5fe231e8
JB		 7070 err = -ENOENT;
7071 goto out_err;
71063f0e 7072 }
71063f0e 7073
00918d33 7074 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7075 err = -EOPNOTSUPP;
7076 goto out_err;
7077 }
7078
7079 while (1) {
15e47304 7080 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7081 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7082 NL80211_CMD_TESTMODE);
7083 struct nlattr *tmdata;
7084
cb35fba3
DC		 7085 if (!hdr)
7086 break;
7087
9360ffd1 7088 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7089 genlmsg_cancel(skb, hdr);
7090 break;
7091 }
7092
7093 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7094 if (!tmdata) {
7095 genlmsg_cancel(skb, hdr);
7096 break;
7097 }
e35e4d28 7098 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7099 nla_nest_end(skb, tmdata);
7100
7101 if (err == -ENOBUFS || err == -ENOENT) {
7102 genlmsg_cancel(skb, hdr);
7103 break;
7104 } else if (err) {
7105 genlmsg_cancel(skb, hdr);
7106 goto out_err;
7107 }
7108
7109 genlmsg_end(skb, hdr);
7110 }
7111
7112 err = skb->len;
7113 /* see above */
7114 cb->args[0] = phy_idx + 1;
7115 out_err:
5fe231e8 7116 rtnl_unlock();
71063f0e
WYG		 7117 return err;
7118}
aff89a9b
JB		 7119#endif
7120
b23aa676
SO		 7121static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7122{
4c476991
JB		 7123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7124 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7125 struct cfg80211_connect_params connect;
7126 struct wiphy *wiphy;
fffd0934 7127 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7128 int err;
7129
7130 memset(&connect, 0, sizeof(connect));
7131
7132 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7133 return -EINVAL;
7134
7135 if (!info->attrs[NL80211_ATTR_SSID] ||
7136 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7137 return -EINVAL;
7138
7139 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7140 connect.auth_type =
7141 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7142 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7143 NL80211_CMD_CONNECT))
b23aa676
SO		 7144 return -EINVAL;
7145 } else
7146 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7147
7148 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7149
c0692b8f 7150 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7151 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7152 if (err)
7153 return err;
b23aa676 7154
074ac8df 7155 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7157 return -EOPNOTSUPP;
b23aa676 7158
79c97e97 7159 wiphy = &rdev->wiphy;
b23aa676 7160
4486ea98
BS		 7161 connect.bg_scan_period = -1;
7162 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7163 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7164 connect.bg_scan_period =
7165 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7166 }
7167
b23aa676
SO		 7168 if (info->attrs[NL80211_ATTR_MAC])
7169 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7170 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7171 connect.bssid_hint =
7172 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7173 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7174 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7175
7176 if (info->attrs[NL80211_ATTR_IE]) {
7177 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7178 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7179 }
7180
cee00a95
JM		 7181 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7182 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7183 if (connect.mfp != NL80211_MFP_REQUIRED &&
7184 connect.mfp != NL80211_MFP_NO)
7185 return -EINVAL;
7186 } else {
7187 connect.mfp = NL80211_MFP_NO;
7188 }
7189
b23aa676 7190 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7191 connect.channel = nl80211_get_valid_chan(
7192 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7193 if (!connect.channel)
1df4a510
JM		 7194 return -EINVAL;
7195 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7196 connect.channel_hint = nl80211_get_valid_chan(
7197 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7198 if (!connect.channel_hint)
4c476991 7199 return -EINVAL;
b23aa676
SO		 7200 }
7201
fffd0934
JB		 7202 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7203 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7204 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7205 if (IS_ERR(connkeys))
7206 return PTR_ERR(connkeys);
fffd0934
JB		 7207 }
7208
7e7c8926
BG		 7209 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7210 connect.flags |= ASSOC_REQ_DISABLE_HT;
7211
7212 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7213 memcpy(&connect.ht_capa_mask,
7214 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7215 sizeof(connect.ht_capa_mask));
7216
7217 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7218 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7219 kfree(connkeys);
7e7c8926 7220 return -EINVAL;
b4e4f47e 7221 }
7e7c8926
BG		 7222 memcpy(&connect.ht_capa,
7223 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7224 sizeof(connect.ht_capa));
7225 }
7226
ee2aca34
JB		 7227 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7228 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7229
7230 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7231 memcpy(&connect.vht_capa_mask,
7232 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7233 sizeof(connect.vht_capa_mask));
7234
7235 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7236 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7237 kfree(connkeys);
7238 return -EINVAL;
7239 }
7240 memcpy(&connect.vht_capa,
7241 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7242 sizeof(connect.vht_capa));
7243 }
7244
83739b03
JB		 7245 wdev_lock(dev->ieee80211_ptr);
7246 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7247 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7248 if (err)
7249 kfree(connkeys);
b23aa676
SO		 7250 return err;
7251}
7252
7253static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7254{
4c476991
JB		 7255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7256 struct net_device *dev = info->user_ptr[1];
b23aa676 7257 u16 reason;
83739b03 7258 int ret;
b23aa676
SO		 7259
7260 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7261 reason = WLAN_REASON_DEAUTH_LEAVING;
7262 else
7263 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7264
7265 if (reason == 0)
7266 return -EINVAL;
7267
074ac8df 7268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7270 return -EOPNOTSUPP;
b23aa676 7271
83739b03
JB		 7272 wdev_lock(dev->ieee80211_ptr);
7273 ret = cfg80211_disconnect(rdev, dev, reason, true);
7274 wdev_unlock(dev->ieee80211_ptr);
7275 return ret;
b23aa676
SO		 7276}
7277
463d0183
JB		 7278static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7279{
4c476991 7280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7281 struct net *net;
7282 int err;
7283 u32 pid;
7284
7285 if (!info->attrs[NL80211_ATTR_PID])
7286 return -EINVAL;
7287
7288 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7289
463d0183 7290 net = get_net_ns_by_pid(pid);
4c476991
JB		 7291 if (IS_ERR(net))
7292 return PTR_ERR(net);
463d0183
JB		 7293
7294 err = 0;
7295
7296 /* check if anything to do */
4c476991
JB		 7297 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7298 err = cfg80211_switch_netns(rdev, net);
463d0183 7299
463d0183 7300 put_net(net);
463d0183
JB		 7301 return err;
7302}
7303
67fbb16b
SO		 7304static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7305{
4c476991 7306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7307 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7308 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7309 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7310 struct cfg80211_pmksa pmksa;
7311
7312 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7313
7314 if (!info->attrs[NL80211_ATTR_MAC])
7315 return -EINVAL;
7316
7317 if (!info->attrs[NL80211_ATTR_PMKID])
7318 return -EINVAL;
7319
67fbb16b
SO		 7320 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7321 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7322
074ac8df 7323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7324 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7325 return -EOPNOTSUPP;
67fbb16b
SO		 7326
7327 switch (info->genlhdr->cmd) {
7328 case NL80211_CMD_SET_PMKSA:
7329 rdev_ops = rdev->ops->set_pmksa;
7330 break;
7331 case NL80211_CMD_DEL_PMKSA:
7332 rdev_ops = rdev->ops->del_pmksa;
7333 break;
7334 default:
7335 WARN_ON(1);
7336 break;
7337 }
7338
4c476991
JB		 7339 if (!rdev_ops)
7340 return -EOPNOTSUPP;
67fbb16b 7341
4c476991 7342 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7343}
7344
7345static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7346{
4c476991
JB		 7347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7348 struct net_device *dev = info->user_ptr[1];
67fbb16b 7349
074ac8df 7350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7352 return -EOPNOTSUPP;
67fbb16b 7353
4c476991
JB		 7354 if (!rdev->ops->flush_pmksa)
7355 return -EOPNOTSUPP;
67fbb16b 7356
e35e4d28 7357 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7358}
7359
109086ce
AN		 7360static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7361{
7362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7363 struct net_device *dev = info->user_ptr[1];
7364 u8 action_code, dialog_token;
df942e7b 7365 u32 peer_capability = 0;
109086ce
AN		 7366 u16 status_code;
7367 u8 *peer;
7368
7369 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7370 !rdev->ops->tdls_mgmt)
7371 return -EOPNOTSUPP;
7372
7373 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7374 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7375 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7376 !info->attrs[NL80211_ATTR_IE] ||
7377 !info->attrs[NL80211_ATTR_MAC])
7378 return -EINVAL;
7379
7380 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7381 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7382 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7383 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7384 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7385 peer_capability =
7386 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7387
e35e4d28 7388 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7389 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7390 nla_data(info->attrs[NL80211_ATTR_IE]),
7391 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7392}
7393
7394static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7395{
7396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7397 struct net_device *dev = info->user_ptr[1];
7398 enum nl80211_tdls_operation operation;
7399 u8 *peer;
7400
7401 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7402 !rdev->ops->tdls_oper)
7403 return -EOPNOTSUPP;
7404
7405 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7406 !info->attrs[NL80211_ATTR_MAC])
7407 return -EINVAL;
7408
7409 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7410 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7411
e35e4d28 7412 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7413}
7414
9588bbd5
JM		 7415static int nl80211_remain_on_channel(struct sk_buff *skb,
7416 struct genl_info *info)
7417{
4c476991 7418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7419 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7420 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7421 struct sk_buff *msg;
7422 void *hdr;
7423 u64 cookie;
683b6d3b 7424 u32 duration;
9588bbd5
JM		 7425 int err;
7426
7427 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7428 !info->attrs[NL80211_ATTR_DURATION])
7429 return -EINVAL;
7430
7431 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7432
ebf348fc
JB		 7433 if (!rdev->ops->remain_on_channel ||
7434 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7435 return -EOPNOTSUPP;
7436
9588bbd5 7437 /*
ebf348fc
JB		 7438 * We should be on that channel for at least a minimum amount of
7439 * time (10ms) but no longer than the driver supports.
9588bbd5 7440 */
ebf348fc 7441 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7442 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7443 return -EINVAL;
7444
683b6d3b
JB		 7445 err = nl80211_parse_chandef(rdev, info, &chandef);
7446 if (err)
7447 return err;
9588bbd5
JM		 7448
7449 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7450 if (!msg)
7451 return -ENOMEM;
9588bbd5 7452
15e47304 7453 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7454 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7455 if (!hdr) {
7456 err = -ENOBUFS;
9588bbd5
JM		 7457 goto free_msg;
7458 }
7459
683b6d3b
JB		 7460 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7461 duration, &cookie);
9588bbd5
JM		 7462
7463 if (err)
7464 goto free_msg;
7465
9360ffd1
DM		 7466 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7467 goto nla_put_failure;
9588bbd5
JM		 7468
7469 genlmsg_end(msg, hdr);
4c476991
JB		 7470
7471 return genlmsg_reply(msg, info);
9588bbd5
JM		 7472
7473 nla_put_failure:
7474 err = -ENOBUFS;
7475 free_msg:
7476 nlmsg_free(msg);
9588bbd5
JM		 7477 return err;
7478}
7479
7480static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7481 struct genl_info *info)
7482{
4c476991 7483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7484 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7485 u64 cookie;
9588bbd5
JM		 7486
7487 if (!info->attrs[NL80211_ATTR_COOKIE])
7488 return -EINVAL;
7489
4c476991
JB		 7490 if (!rdev->ops->cancel_remain_on_channel)
7491 return -EOPNOTSUPP;
9588bbd5 7492
9588bbd5
JM		 7493 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7494
e35e4d28 7495 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7496}
7497
13ae75b1
JM		 7498static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7499 u8 *rates, u8 rates_len)
7500{
7501 u8 i;
7502 u32 mask = 0;
7503
7504 for (i = 0; i < rates_len; i++) {
7505 int rate = (rates[i] & 0x7f) * 5;
7506 int ridx;
7507 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7508 struct ieee80211_rate *srate =
7509 &sband->bitrates[ridx];
7510 if (rate == srate->bitrate) {
7511 mask |= 1 << ridx;
7512 break;
7513 }
7514 }
7515 if (ridx == sband->n_bitrates)
7516 return 0; /* rate not found */
7517 }
7518
7519 return mask;
7520}
7521
24db78c0
SW		 7522static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7523 u8 *rates, u8 rates_len,
7524 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7525{
7526 u8 i;
7527
7528 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7529
7530 for (i = 0; i < rates_len; i++) {
7531 int ridx, rbit;
7532
7533 ridx = rates[i] / 8;
7534 rbit = BIT(rates[i] % 8);
7535
7536 /* check validity */
910570b5 7537 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7538 return false;
7539
7540 /* check availability */
7541 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7542 mcs[ridx] |= rbit;
7543 else
7544 return false;
7545 }
7546
7547 return true;
7548}
7549
204e35a9
JD		 7550static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7551{
7552 u16 mcs_mask = 0;
7553
7554 switch (vht_mcs_map) {
7555 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7556 break;
7557 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7558 mcs_mask = 0x00FF;
7559 break;
7560 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7561 mcs_mask = 0x01FF;
7562 break;
7563 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7564 mcs_mask = 0x03FF;
7565 break;
7566 default:
7567 break;
7568 }
7569
7570 return mcs_mask;
7571}
7572
7573static void vht_build_mcs_mask(u16 vht_mcs_map,
7574 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7575{
7576 u8 nss;
7577
7578 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7579 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7580 vht_mcs_map >>= 2;
7581 }
7582}
7583
7584static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7585 struct nl80211_txrate_vht *txrate,
7586 u16 mcs[NL80211_VHT_NSS_MAX])
7587{
7588 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7589 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7590 u8 i;
7591
7592 if (!sband->vht_cap.vht_supported)
7593 return false;
7594
7595 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7596
7597 /* Build vht_mcs_mask from VHT capabilities */
7598 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7599
7600 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7601 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7602 mcs[i] = txrate->mcs[i];
7603 else
7604 return false;
7605 }
7606
7607 return true;
7608}
7609
b54452b0 7610static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7611 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7612 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7613 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7614 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7615 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7616 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7617};
7618
7619static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7620 struct genl_info *info)
7621{
7622 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7624 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7625 int rem, i;
7626 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7627 struct nlattr *tx_rates;
7628 struct ieee80211_supported_band *sband;
204e35a9 7629 u16 vht_tx_mcs_map;
13ae75b1 7630
4c476991
JB		 7631 if (!rdev->ops->set_bitrate_mask)
7632 return -EOPNOTSUPP;
13ae75b1
JM		 7633
7634 memset(&mask, 0, sizeof(mask));
7635 /* Default to all rates enabled */
7636 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7637 sband = rdev->wiphy.bands[i];
7869303b
JD		 7638
7639 if (!sband)
7640 continue;
7641
7642 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7643 memcpy(mask.control[i].ht_mcs,
7869303b 7644 sband->ht_cap.mcs.rx_mask,
d1e33e65 7645 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7646
7647 if (!sband->vht_cap.vht_supported)
7648 continue;
7649
7650 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7651 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7652 }
7653
b9243ab0
JD		 7654 /* if no rates are given set it back to the defaults */
7655 if (!info->attrs[NL80211_ATTR_TX_RATES])
7656 goto out;
7657
13ae75b1
JM		 7658 /*
7659 * The nested attribute uses enum nl80211_band as the index. This maps
7660 * directly to the enum ieee80211_band values used in cfg80211.
7661 */
24db78c0 7662 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7663 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7664 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7665 int err;
7666
4c476991
JB		 7667 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7668 return -EINVAL;
13ae75b1 7669 sband = rdev->wiphy.bands[band];
4c476991
JB		 7670 if (sband == NULL)
7671 return -EINVAL;
ae811e21
JB		 7672 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7673 nla_len(tx_rates), nl80211_txattr_policy);
7674 if (err)
7675 return err;
13ae75b1
JM		 7676 if (tb[NL80211_TXRATE_LEGACY]) {
7677 mask.control[band].legacy = rateset_to_mask(
7678 sband,
7679 nla_data(tb[NL80211_TXRATE_LEGACY]),
7680 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7681 if ((mask.control[band].legacy == 0) &&
7682 nla_len(tb[NL80211_TXRATE_LEGACY]))
7683 return -EINVAL;
24db78c0 7684 }
d1e33e65 7685 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7686 if (!ht_rateset_to_mask(
7687 sband,
d1e33e65
JD		 7688 nla_data(tb[NL80211_TXRATE_HT]),
7689 nla_len(tb[NL80211_TXRATE_HT]),
7690 mask.control[band].ht_mcs))
24db78c0
SW		 7691 return -EINVAL;
7692 }
204e35a9
JD		 7693 if (tb[NL80211_TXRATE_VHT]) {
7694 if (!vht_set_mcs_mask(
7695 sband,
7696 nla_data(tb[NL80211_TXRATE_VHT]),
7697 mask.control[band].vht_mcs))
7698 return -EINVAL;
7699 }
0b9323f6
JD		 7700 if (tb[NL80211_TXRATE_GI]) {
7701 mask.control[band].gi =
7702 nla_get_u8(tb[NL80211_TXRATE_GI]);
7703 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7704 return -EINVAL;
7705 }
24db78c0
SW		 7706
7707 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7708 /* don't allow empty legacy rates if HT or VHT
7709 * are not even supported.
7710 */
7711 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7712 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7713 return -EINVAL;
7714
7715 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7716 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7717 goto out;
7718
7719 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7720 if (mask.control[band].vht_mcs[i])
7721 goto out;
24db78c0
SW		 7722
7723 /* legacy and mcs rates may not be both empty */
204e35a9 7724 return -EINVAL;
13ae75b1
JM		 7725 }
7726 }
7727
b9243ab0 7728out:
e35e4d28 7729 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7730}
7731
2e161f78 7732static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7733{
4c476991 7734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7735 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7736 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7737
7738 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7739 return -EINVAL;
7740
2e161f78
JB		 7741 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7742 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7743
71bbc994
JB		 7744 switch (wdev->iftype) {
7745 case NL80211_IFTYPE_STATION:
7746 case NL80211_IFTYPE_ADHOC:
7747 case NL80211_IFTYPE_P2P_CLIENT:
7748 case NL80211_IFTYPE_AP:
7749 case NL80211_IFTYPE_AP_VLAN:
7750 case NL80211_IFTYPE_MESH_POINT:
7751 case NL80211_IFTYPE_P2P_GO:
98104fde 7752 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7753 break;
7754 default:
4c476991 7755 return -EOPNOTSUPP;
71bbc994 7756 }
026331c4
JM		 7757
7758 /* not much point in registering if we can't reply */
4c476991
JB		 7759 if (!rdev->ops->mgmt_tx)
7760 return -EOPNOTSUPP;
026331c4 7761
15e47304 7762 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7763 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7764 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7765}
7766
2e161f78 7767static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7768{
4c476991 7769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7770 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7771 struct cfg80211_chan_def chandef;
026331c4 7772 int err;
d64d373f 7773 void *hdr = NULL;
026331c4 7774 u64 cookie;
e247bd90 7775 struct sk_buff *msg = NULL;
b176e629
AO		 7776 struct cfg80211_mgmt_tx_params params = {
7777 .dont_wait_for_ack =
7778 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7779 };
026331c4 7780
683b6d3b 7781 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7782 return -EINVAL;
7783
4c476991
JB		 7784 if (!rdev->ops->mgmt_tx)
7785 return -EOPNOTSUPP;
026331c4 7786
71bbc994 7787 switch (wdev->iftype) {
ea141b75
AQ		 7788 case NL80211_IFTYPE_P2P_DEVICE:
7789 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7790 return -EINVAL;
71bbc994
JB		 7791 case NL80211_IFTYPE_STATION:
7792 case NL80211_IFTYPE_ADHOC:
7793 case NL80211_IFTYPE_P2P_CLIENT:
7794 case NL80211_IFTYPE_AP:
7795 case NL80211_IFTYPE_AP_VLAN:
7796 case NL80211_IFTYPE_MESH_POINT:
7797 case NL80211_IFTYPE_P2P_GO:
7798 break;
7799 default:
4c476991 7800 return -EOPNOTSUPP;
71bbc994 7801 }
026331c4 7802
f7ca38df 7803 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7804 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7805 return -EINVAL;
b176e629 7806 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7807
7808 /*
7809 * We should wait on the channel for at least a minimum amount
7810 * of time (10ms) but no longer than the driver supports.
7811 */
b176e629
AO		 7812 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7813 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7814 return -EINVAL;
7815
f7ca38df
JB		 7816 }
7817
b176e629 7818 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7819
b176e629 7820 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7821 return -EINVAL;
7822
b176e629 7823 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7824
ea141b75
AQ		 7825 /* get the channel if any has been specified, otherwise pass NULL to
7826 * the driver. The latter will use the current one
7827 */
7828 chandef.chan = NULL;
7829 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7830 err = nl80211_parse_chandef(rdev, info, &chandef);
7831 if (err)
7832 return err;
7833 }
7834
b176e629 7835 if (!chandef.chan && params.offchan)
ea141b75 7836 return -EINVAL;
026331c4 7837
34d22ce2
AO		 7838 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7839 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7840
7841 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7842 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7843 int i;
7844
7845 if (len % sizeof(u16))
7846 return -EINVAL;
7847
7848 params.n_csa_offsets = len / sizeof(u16);
7849 params.csa_offsets =
7850 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7851
7852 /* check that all the offsets fit the frame */
7853 for (i = 0; i < params.n_csa_offsets; i++) {
7854 if (params.csa_offsets[i] >= params.len)
7855 return -EINVAL;
7856 }
7857 }
7858
b176e629 7859 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7861 if (!msg)
7862 return -ENOMEM;
026331c4 7863
15e47304 7864 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7865 NL80211_CMD_FRAME);
cb35fba3
DC		 7866 if (!hdr) {
7867 err = -ENOBUFS;
e247bd90
JB		 7868 goto free_msg;
7869 }
026331c4 7870 }
e247bd90 7871
b176e629
AO		 7872 params.chan = chandef.chan;
7873 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7874 if (err)
7875 goto free_msg;
7876
e247bd90 7877 if (msg) {
9360ffd1
DM		 7878 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7879 goto nla_put_failure;
026331c4 7880
e247bd90
JB		 7881 genlmsg_end(msg, hdr);
7882 return genlmsg_reply(msg, info);
7883 }
7884
7885 return 0;
026331c4
JM		 7886
7887 nla_put_failure:
7888 err = -ENOBUFS;
7889 free_msg:
7890 nlmsg_free(msg);
026331c4
JM		 7891 return err;
7892}
7893
f7ca38df
JB		 7894static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7895{
7896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7897 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7898 u64 cookie;
7899
7900 if (!info->attrs[NL80211_ATTR_COOKIE])
7901 return -EINVAL;
7902
7903 if (!rdev->ops->mgmt_tx_cancel_wait)
7904 return -EOPNOTSUPP;
7905
71bbc994
JB		 7906 switch (wdev->iftype) {
7907 case NL80211_IFTYPE_STATION:
7908 case NL80211_IFTYPE_ADHOC:
7909 case NL80211_IFTYPE_P2P_CLIENT:
7910 case NL80211_IFTYPE_AP:
7911 case NL80211_IFTYPE_AP_VLAN:
7912 case NL80211_IFTYPE_P2P_GO:
98104fde 7913 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7914 break;
7915 default:
f7ca38df 7916 return -EOPNOTSUPP;
71bbc994 7917 }
f7ca38df
JB		 7918
7919 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7920
e35e4d28 7921 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7922}
7923
ffb9eb3d
KV		 7924static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7925{
4c476991 7926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7927 struct wireless_dev *wdev;
4c476991 7928 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7929 u8 ps_state;
7930 bool state;
7931 int err;
7932
4c476991
JB		 7933 if (!info->attrs[NL80211_ATTR_PS_STATE])
7934 return -EINVAL;
ffb9eb3d
KV		 7935
7936 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7937
4c476991
JB		 7938 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7939 return -EINVAL;
ffb9eb3d
KV		 7940
7941 wdev = dev->ieee80211_ptr;
7942
4c476991
JB		 7943 if (!rdev->ops->set_power_mgmt)
7944 return -EOPNOTSUPP;
ffb9eb3d
KV		 7945
7946 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7947
7948 if (state == wdev->ps)
4c476991 7949 return 0;
ffb9eb3d 7950
e35e4d28 7951 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7952 if (!err)
7953 wdev->ps = state;
ffb9eb3d
KV		 7954 return err;
7955}
7956
7957static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7958{
4c476991 7959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7960 enum nl80211_ps_state ps_state;
7961 struct wireless_dev *wdev;
4c476991 7962 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7963 struct sk_buff *msg;
7964 void *hdr;
7965 int err;
7966
ffb9eb3d
KV		 7967 wdev = dev->ieee80211_ptr;
7968
4c476991
JB		 7969 if (!rdev->ops->set_power_mgmt)
7970 return -EOPNOTSUPP;
ffb9eb3d
KV		 7971
7972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7973 if (!msg)
7974 return -ENOMEM;
ffb9eb3d 7975
15e47304 7976 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7977 NL80211_CMD_GET_POWER_SAVE);
7978 if (!hdr) {
4c476991 7979 err = -ENOBUFS;
ffb9eb3d
KV		 7980 goto free_msg;
7981 }
7982
7983 if (wdev->ps)
7984 ps_state = NL80211_PS_ENABLED;
7985 else
7986 ps_state = NL80211_PS_DISABLED;
7987
9360ffd1
DM		 7988 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7989 goto nla_put_failure;
ffb9eb3d
KV		 7990
7991 genlmsg_end(msg, hdr);
4c476991 7992 return genlmsg_reply(msg, info);
ffb9eb3d 7993
4c476991 7994 nla_put_failure:
ffb9eb3d 7995 err = -ENOBUFS;
4c476991 7996 free_msg:
ffb9eb3d 7997 nlmsg_free(msg);
ffb9eb3d
KV		 7998 return err;
7999}
8000
94e860f1
JB		 8001static const struct nla_policy
8002nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8003 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8004 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8005 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8006 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8007 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8008 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8009};
8010
84f10708 8011static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8012 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8013{
8014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8015 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8016 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8017
d9d8b019 8018 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8019 return -EINVAL;
8020
84f10708
TP		 8021 if (!rdev->ops->set_cqm_txe_config)
8022 return -EOPNOTSUPP;
8023
8024 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8025 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8026 return -EOPNOTSUPP;
8027
e35e4d28 8028 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8029}
8030
d6dc1a38
JO		 8031static int nl80211_set_cqm_rssi(struct genl_info *info,
8032 s32 threshold, u32 hysteresis)
8033{
4c476991 8034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8035 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8036 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8037
8038 if (threshold > 0)
8039 return -EINVAL;
8040
1da5fcc8
JB		 8041 /* disabling - hysteresis should also be zero then */
8042 if (threshold == 0)
8043 hysteresis = 0;
d6dc1a38 8044
4c476991
JB		 8045 if (!rdev->ops->set_cqm_rssi_config)
8046 return -EOPNOTSUPP;
d6dc1a38 8047
074ac8df 8048 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8049 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8050 return -EOPNOTSUPP;
d6dc1a38 8051
e35e4d28 8052 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8053}
8054
8055static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8056{
8057 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8058 struct nlattr *cqm;
8059 int err;
8060
8061 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8062 if (!cqm)
8063 return -EINVAL;
d6dc1a38
JO		 8064
8065 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8066 nl80211_attr_cqm_policy);
8067 if (err)
1da5fcc8 8068 return err;
d6dc1a38
JO		 8069
8070 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8071 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8072 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8073 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8074
1da5fcc8
JB		 8075 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8076 }
8077
8078 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8079 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8080 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8081 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8082 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8083 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8084
8085 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8086 }
8087
8088 return -EINVAL;
d6dc1a38
JO		 8089}
8090
29cbe68c
JB		 8091static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8092{
8093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8094 struct net_device *dev = info->user_ptr[1];
8095 struct mesh_config cfg;
c80d545d 8096 struct mesh_setup setup;
29cbe68c
JB		 8097 int err;
8098
8099 /* start with default */
8100 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8101 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8102
24bdd9f4 8103 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8104 /* and parse parameters if given */
24bdd9f4 8105 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8106 if (err)
8107 return err;
8108 }
8109
8110 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8111 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8112 return -EINVAL;
8113
c80d545d
JC		 8114 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8115 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8116
4bb62344
CYY		 8117 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8118 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8119 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8120 return -EINVAL;
8121
9bdbf04d
MP		 8122 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8123 setup.beacon_interval =
8124 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8125 if (setup.beacon_interval < 10 ||
8126 setup.beacon_interval > 10000)
8127 return -EINVAL;
8128 }
8129
8130 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8131 setup.dtim_period =
8132 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8133 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8134 return -EINVAL;
8135 }
8136
c80d545d
JC		 8137 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8138 /* parse additional setup parameters if given */
8139 err = nl80211_parse_mesh_setup(info, &setup);
8140 if (err)
8141 return err;
8142 }
8143
d37bb18a
TP		 8144 if (setup.user_mpm)
8145 cfg.auto_open_plinks = false;
8146
cc1d2806 8147 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8148 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8149 if (err)
8150 return err;
cc1d2806
JB		 8151 } else {
8152 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8153 setup.chandef.chan = NULL;
cc1d2806
JB		 8154 }
8155
ffb3cf30
AN		 8156 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8157 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8158 int n_rates =
8159 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8160 struct ieee80211_supported_band *sband;
8161
8162 if (!setup.chandef.chan)
8163 return -EINVAL;
8164
8165 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8166
8167 err = ieee80211_get_ratemask(sband, rates, n_rates,
8168 &setup.basic_rates);
8169 if (err)
8170 return err;
8171 }
8172
c80d545d 8173 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8174}
8175
8176static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8177{
8178 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8179 struct net_device *dev = info->user_ptr[1];
8180
8181 return cfg80211_leave_mesh(rdev, dev);
8182}
8183
dfb89c56 8184#ifdef CONFIG_PM
bb92d199
AK		 8185static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8186 struct cfg80211_registered_device *rdev)
8187{
6abb9cb9 8188 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8189 struct nlattr *nl_pats, *nl_pat;
8190 int i, pat_len;
8191
6abb9cb9 8192 if (!wowlan->n_patterns)
bb92d199
AK		 8193 return 0;
8194
8195 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8196 if (!nl_pats)
8197 return -ENOBUFS;
8198
6abb9cb9 8199 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8200 nl_pat = nla_nest_start(msg, i + 1);
8201 if (!nl_pat)
8202 return -ENOBUFS;
6abb9cb9 8203 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8204 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8205 wowlan->patterns[i].mask) ||
50ac6607
AK		 8206 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8207 wowlan->patterns[i].pattern) ||
8208 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8209 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8210 return -ENOBUFS;
8211 nla_nest_end(msg, nl_pat);
8212 }
8213 nla_nest_end(msg, nl_pats);
8214
8215 return 0;
8216}
8217
2a0e047e
JB		 8218static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8219 struct cfg80211_wowlan_tcp *tcp)
8220{
8221 struct nlattr *nl_tcp;
8222
8223 if (!tcp)
8224 return 0;
8225
8226 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8227 if (!nl_tcp)
8228 return -ENOBUFS;
8229
8230 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8231 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8232 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8233 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8234 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8235 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8236 tcp->payload_len, tcp->payload) ||
8237 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8238 tcp->data_interval) ||
8239 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8240 tcp->wake_len, tcp->wake_data) ||
8241 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8242 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8243 return -ENOBUFS;
8244
8245 if (tcp->payload_seq.len &&
8246 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8247 sizeof(tcp->payload_seq), &tcp->payload_seq))
8248 return -ENOBUFS;
8249
8250 if (tcp->payload_tok.len &&
8251 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8252 sizeof(tcp->payload_tok) + tcp->tokens_size,
8253 &tcp->payload_tok))
8254 return -ENOBUFS;
8255
e248ad30
JB		 8256 nla_nest_end(msg, nl_tcp);
8257
2a0e047e
JB		 8258 return 0;
8259}
8260
ff1b6e69
JB		 8261static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8262{
8263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8264 struct sk_buff *msg;
8265 void *hdr;
2a0e047e 8266 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8267
964dc9e2 8268 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8269 return -EOPNOTSUPP;
8270
6abb9cb9 8271 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8272 /* adjust size to have room for all the data */
6abb9cb9
JB		 8273 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8274 rdev->wiphy.wowlan_config->tcp->payload_len +
8275 rdev->wiphy.wowlan_config->tcp->wake_len +
8276 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8277 }
8278
8279 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8280 if (!msg)
8281 return -ENOMEM;
8282
15e47304 8283 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8284 NL80211_CMD_GET_WOWLAN);
8285 if (!hdr)
8286 goto nla_put_failure;
8287
6abb9cb9 8288 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8289 struct nlattr *nl_wowlan;
8290
8291 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8292 if (!nl_wowlan)
8293 goto nla_put_failure;
8294
6abb9cb9 8295 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8297 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8299 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8301 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8303 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8305 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8307 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8309 goto nla_put_failure;
2a0e047e 8310
bb92d199
AK		 8311 if (nl80211_send_wowlan_patterns(msg, rdev))
8312 goto nla_put_failure;
2a0e047e 8313
6abb9cb9
JB		 8314 if (nl80211_send_wowlan_tcp(msg,
8315 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8316 goto nla_put_failure;
8317
ff1b6e69
JB		 8318 nla_nest_end(msg, nl_wowlan);
8319 }
8320
8321 genlmsg_end(msg, hdr);
8322 return genlmsg_reply(msg, info);
8323
8324nla_put_failure:
8325 nlmsg_free(msg);
8326 return -ENOBUFS;
8327}
8328
2a0e047e
JB		 8329static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8330 struct nlattr *attr,
8331 struct cfg80211_wowlan *trig)
8332{
8333 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8334 struct cfg80211_wowlan_tcp *cfg;
8335 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8336 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8337 u32 size;
8338 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8339 int err, port;
8340
964dc9e2 8341 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8342 return -EINVAL;
8343
8344 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8345 nla_data(attr), nla_len(attr),
8346 nl80211_wowlan_tcp_policy);
8347 if (err)
8348 return err;
8349
8350 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8351 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8352 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8353 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8354 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8355 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8356 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8357 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8358 return -EINVAL;
8359
8360 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8361 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8362 return -EINVAL;
8363
8364 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8365 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8366 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8367 return -EINVAL;
8368
8369 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8370 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8371 return -EINVAL;
8372
8373 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8374 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8375 return -EINVAL;
8376
8377 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8378 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8379
8380 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8381 tokens_size = tokln - sizeof(*tok);
8382
8383 if (!tok->len || tokens_size % tok->len)
8384 return -EINVAL;
964dc9e2 8385 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8386 return -EINVAL;
964dc9e2 8387 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8388 return -EINVAL;
964dc9e2 8389 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8390 return -EINVAL;
964dc9e2 8391 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8392 return -EINVAL;
8393 if (tok->offset + tok->len > data_size)
8394 return -EINVAL;
8395 }
8396
8397 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8398 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8399 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8400 return -EINVAL;
8401 if (seq->len == 0 || seq->len > 4)
8402 return -EINVAL;
8403 if (seq->len + seq->offset > data_size)
8404 return -EINVAL;
8405 }
8406
8407 size = sizeof(*cfg);
8408 size += data_size;
8409 size += wake_size + wake_mask_size;
8410 size += tokens_size;
8411
8412 cfg = kzalloc(size, GFP_KERNEL);
8413 if (!cfg)
8414 return -ENOMEM;
8415 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8416 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8417 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8418 ETH_ALEN);
8419 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8420 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8421 else
8422 port = 0;
8423#ifdef CONFIG_INET
8424 /* allocate a socket and port for it and use it */
8425 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8426 IPPROTO_TCP, &cfg->sock, 1);
8427 if (err) {
8428 kfree(cfg);
8429 return err;
8430 }
8431 if (inet_csk_get_port(cfg->sock->sk, port)) {
8432 sock_release(cfg->sock);
8433 kfree(cfg);
8434 return -EADDRINUSE;
8435 }
8436 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8437#else
8438 if (!port) {
8439 kfree(cfg);
8440 return -EINVAL;
8441 }
8442 cfg->src_port = port;
8443#endif
8444
8445 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8446 cfg->payload_len = data_size;
8447 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8448 memcpy((void *)cfg->payload,
8449 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8450 data_size);
8451 if (seq)
8452 cfg->payload_seq = *seq;
8453 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8454 cfg->wake_len = wake_size;
8455 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8456 memcpy((void *)cfg->wake_data,
8457 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8458 wake_size);
8459 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8460 data_size + wake_size;
8461 memcpy((void *)cfg->wake_mask,
8462 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8463 wake_mask_size);
8464 if (tok) {
8465 cfg->tokens_size = tokens_size;
8466 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8467 }
8468
8469 trig->tcp = cfg;
8470
8471 return 0;
8472}
8473
ff1b6e69
JB		 8474static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8475{
8476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8477 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8478 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8479 struct cfg80211_wowlan *ntrig;
964dc9e2 8480 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8481 int err, i;
6abb9cb9 8482 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8483
964dc9e2 8484 if (!wowlan)
ff1b6e69
JB		 8485 return -EOPNOTSUPP;
8486
ae33bd81
JB		 8487 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8488 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8489 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8490 goto set_wakeup;
8491 }
ff1b6e69
JB		 8492
8493 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8494 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8495 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8496 nl80211_wowlan_policy);
8497 if (err)
8498 return err;
8499
8500 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8501 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8502 return -EINVAL;
8503 new_triggers.any = true;
8504 }
8505
8506 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8507 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8508 return -EINVAL;
8509 new_triggers.disconnect = true;
8510 }
8511
8512 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8513 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8514 return -EINVAL;
8515 new_triggers.magic_pkt = true;
8516 }
8517
77dbbb13
JB		 8518 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8519 return -EINVAL;
8520
8521 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8522 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8523 return -EINVAL;
8524 new_triggers.gtk_rekey_failure = true;
8525 }
8526
8527 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8528 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8529 return -EINVAL;
8530 new_triggers.eap_identity_req = true;
8531 }
8532
8533 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8534 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8535 return -EINVAL;
8536 new_triggers.four_way_handshake = true;
8537 }
8538
8539 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8540 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8541 return -EINVAL;
8542 new_triggers.rfkill_release = true;
8543 }
8544
ff1b6e69
JB		 8545 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8546 struct nlattr *pat;
8547 int n_patterns = 0;
bb92d199 8548 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8549 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8550
8551 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8552 rem)
8553 n_patterns++;
8554 if (n_patterns > wowlan->n_patterns)
8555 return -EINVAL;
8556
8557 new_triggers.patterns = kcalloc(n_patterns,
8558 sizeof(new_triggers.patterns[0]),
8559 GFP_KERNEL);
8560 if (!new_triggers.patterns)
8561 return -ENOMEM;
8562
8563 new_triggers.n_patterns = n_patterns;
8564 i = 0;
8565
8566 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8567 rem) {
922bd80f
JB		 8568 u8 *mask_pat;
8569
50ac6607
AK		 8570 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8571 nla_len(pat), NULL);
ff1b6e69 8572 err = -EINVAL;
50ac6607
AK		 8573 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8574 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8575 goto error;
50ac6607 8576 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8577 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8578 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8579 goto error;
8580 if (pat_len > wowlan->pattern_max_len ||
8581 pat_len < wowlan->pattern_min_len)
8582 goto error;
8583
50ac6607 8584 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8585 pkt_offset = 0;
8586 else
8587 pkt_offset = nla_get_u32(
50ac6607 8588 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8589 if (pkt_offset > wowlan->max_pkt_offset)
8590 goto error;
8591 new_triggers.patterns[i].pkt_offset = pkt_offset;
8592
922bd80f
JB		 8593 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8594 if (!mask_pat) {
ff1b6e69
JB		 8595 err = -ENOMEM;
8596 goto error;
8597 }
922bd80f
JB		 8598 new_triggers.patterns[i].mask = mask_pat;
8599 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8600 mask_len);
922bd80f
JB		 8601 mask_pat += mask_len;
8602 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8603 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8604 memcpy(mask_pat,
50ac6607 8605 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8606 pat_len);
8607 i++;
8608 }
8609 }
8610
2a0e047e
JB		 8611 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8612 err = nl80211_parse_wowlan_tcp(
8613 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8614 &new_triggers);
8615 if (err)
8616 goto error;
8617 }
8618
ae33bd81
JB		 8619 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8620 if (!ntrig) {
8621 err = -ENOMEM;
8622 goto error;
ff1b6e69 8623 }
ae33bd81 8624 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8625 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8626
ae33bd81 8627 set_wakeup:
6abb9cb9
JB		 8628 if (rdev->ops->set_wakeup &&
8629 prev_enabled != !!rdev->wiphy.wowlan_config)
8630 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8631
ff1b6e69
JB		 8632 return 0;
8633 error:
8634 for (i = 0; i < new_triggers.n_patterns; i++)
8635 kfree(new_triggers.patterns[i].mask);
8636 kfree(new_triggers.patterns);
2a0e047e
JB		 8637 if (new_triggers.tcp && new_triggers.tcp->sock)
8638 sock_release(new_triggers.tcp->sock);
8639 kfree(new_triggers.tcp);
ff1b6e69
JB		 8640 return err;
8641}
dfb89c56 8642#endif
ff1b6e69 8643
be29b99a
AK		 8644static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8645 struct cfg80211_registered_device *rdev)
8646{
8647 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8648 int i, j, pat_len;
8649 struct cfg80211_coalesce_rules *rule;
8650
8651 if (!rdev->coalesce->n_rules)
8652 return 0;
8653
8654 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8655 if (!nl_rules)
8656 return -ENOBUFS;
8657
8658 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8659 nl_rule = nla_nest_start(msg, i + 1);
8660 if (!nl_rule)
8661 return -ENOBUFS;
8662
8663 rule = &rdev->coalesce->rules[i];
8664 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8665 rule->delay))
8666 return -ENOBUFS;
8667
8668 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8669 rule->condition))
8670 return -ENOBUFS;
8671
8672 nl_pats = nla_nest_start(msg,
8673 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8674 if (!nl_pats)
8675 return -ENOBUFS;
8676
8677 for (j = 0; j < rule->n_patterns; j++) {
8678 nl_pat = nla_nest_start(msg, j + 1);
8679 if (!nl_pat)
8680 return -ENOBUFS;
8681 pat_len = rule->patterns[j].pattern_len;
8682 if (nla_put(msg, NL80211_PKTPAT_MASK,
8683 DIV_ROUND_UP(pat_len, 8),
8684 rule->patterns[j].mask) ||
8685 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8686 rule->patterns[j].pattern) ||
8687 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8688 rule->patterns[j].pkt_offset))
8689 return -ENOBUFS;
8690 nla_nest_end(msg, nl_pat);
8691 }
8692 nla_nest_end(msg, nl_pats);
8693 nla_nest_end(msg, nl_rule);
8694 }
8695 nla_nest_end(msg, nl_rules);
8696
8697 return 0;
8698}
8699
8700static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8701{
8702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8703 struct sk_buff *msg;
8704 void *hdr;
8705
8706 if (!rdev->wiphy.coalesce)
8707 return -EOPNOTSUPP;
8708
8709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8710 if (!msg)
8711 return -ENOMEM;
8712
8713 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8714 NL80211_CMD_GET_COALESCE);
8715 if (!hdr)
8716 goto nla_put_failure;
8717
8718 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8719 goto nla_put_failure;
8720
8721 genlmsg_end(msg, hdr);
8722 return genlmsg_reply(msg, info);
8723
8724nla_put_failure:
8725 nlmsg_free(msg);
8726 return -ENOBUFS;
8727}
8728
8729void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8730{
8731 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8732 int i, j;
8733 struct cfg80211_coalesce_rules *rule;
8734
8735 if (!coalesce)
8736 return;
8737
8738 for (i = 0; i < coalesce->n_rules; i++) {
8739 rule = &coalesce->rules[i];
8740 for (j = 0; j < rule->n_patterns; j++)
8741 kfree(rule->patterns[j].mask);
8742 kfree(rule->patterns);
8743 }
8744 kfree(coalesce->rules);
8745 kfree(coalesce);
8746 rdev->coalesce = NULL;
8747}
8748
8749static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8750 struct nlattr *rule,
8751 struct cfg80211_coalesce_rules *new_rule)
8752{
8753 int err, i;
8754 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8755 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8756 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8757 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8758
8759 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8760 nla_len(rule), nl80211_coalesce_policy);
8761 if (err)
8762 return err;
8763
8764 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8765 new_rule->delay =
8766 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8767 if (new_rule->delay > coalesce->max_delay)
8768 return -EINVAL;
8769
8770 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8771 new_rule->condition =
8772 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8773 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8774 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8775 return -EINVAL;
8776
8777 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8778 return -EINVAL;
8779
8780 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8781 rem)
8782 n_patterns++;
8783 if (n_patterns > coalesce->n_patterns)
8784 return -EINVAL;
8785
8786 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8787 GFP_KERNEL);
8788 if (!new_rule->patterns)
8789 return -ENOMEM;
8790
8791 new_rule->n_patterns = n_patterns;
8792 i = 0;
8793
8794 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8795 rem) {
922bd80f
JB		 8796 u8 *mask_pat;
8797
be29b99a
AK		 8798 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8799 nla_len(pat), NULL);
8800 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8801 !pat_tb[NL80211_PKTPAT_PATTERN])
8802 return -EINVAL;
8803 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8804 mask_len = DIV_ROUND_UP(pat_len, 8);
8805 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8806 return -EINVAL;
8807 if (pat_len > coalesce->pattern_max_len ||
8808 pat_len < coalesce->pattern_min_len)
8809 return -EINVAL;
8810
8811 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8812 pkt_offset = 0;
8813 else
8814 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8815 if (pkt_offset > coalesce->max_pkt_offset)
8816 return -EINVAL;
8817 new_rule->patterns[i].pkt_offset = pkt_offset;
8818
922bd80f
JB		 8819 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8820 if (!mask_pat)
be29b99a 8821 return -ENOMEM;
922bd80f
JB		 8822
8823 new_rule->patterns[i].mask = mask_pat;
8824 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8825 mask_len);
8826
8827 mask_pat += mask_len;
8828 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8829 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8830 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8831 pat_len);
be29b99a
AK		 8832 i++;
8833 }
8834
8835 return 0;
8836}
8837
8838static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8839{
8840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8841 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8842 struct cfg80211_coalesce new_coalesce = {};
8843 struct cfg80211_coalesce *n_coalesce;
8844 int err, rem_rule, n_rules = 0, i, j;
8845 struct nlattr *rule;
8846 struct cfg80211_coalesce_rules *tmp_rule;
8847
8848 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8849 return -EOPNOTSUPP;
8850
8851 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8852 cfg80211_rdev_free_coalesce(rdev);
8853 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8854 return 0;
8855 }
8856
8857 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8858 rem_rule)
8859 n_rules++;
8860 if (n_rules > coalesce->n_rules)
8861 return -EINVAL;
8862
8863 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8864 GFP_KERNEL);
8865 if (!new_coalesce.rules)
8866 return -ENOMEM;
8867
8868 new_coalesce.n_rules = n_rules;
8869 i = 0;
8870
8871 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8872 rem_rule) {
8873 err = nl80211_parse_coalesce_rule(rdev, rule,
8874 &new_coalesce.rules[i]);
8875 if (err)
8876 goto error;
8877
8878 i++;
8879 }
8880
8881 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8882 if (err)
8883 goto error;
8884
8885 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8886 if (!n_coalesce) {
8887 err = -ENOMEM;
8888 goto error;
8889 }
8890 cfg80211_rdev_free_coalesce(rdev);
8891 rdev->coalesce = n_coalesce;
8892
8893 return 0;
8894error:
8895 for (i = 0; i < new_coalesce.n_rules; i++) {
8896 tmp_rule = &new_coalesce.rules[i];
8897 for (j = 0; j < tmp_rule->n_patterns; j++)
8898 kfree(tmp_rule->patterns[j].mask);
8899 kfree(tmp_rule->patterns);
8900 }
8901 kfree(new_coalesce.rules);
8902
8903 return err;
8904}
8905
e5497d76
JB		 8906static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8907{
8908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8909 struct net_device *dev = info->user_ptr[1];
8910 struct wireless_dev *wdev = dev->ieee80211_ptr;
8911 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8912 struct cfg80211_gtk_rekey_data rekey_data;
8913 int err;
8914
8915 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8916 return -EINVAL;
8917
8918 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8919 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8920 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8921 nl80211_rekey_policy);
8922 if (err)
8923 return err;
8924
8925 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8926 return -ERANGE;
8927 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8928 return -ERANGE;
8929 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8930 return -ERANGE;
8931
8932 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8933 NL80211_KEK_LEN);
8934 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8935 NL80211_KCK_LEN);
8936 memcpy(rekey_data.replay_ctr,
8937 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8938 NL80211_REPLAY_CTR_LEN);
8939
8940 wdev_lock(wdev);
8941 if (!wdev->current_bss) {
8942 err = -ENOTCONN;
8943 goto out;
8944 }
8945
8946 if (!rdev->ops->set_rekey_data) {
8947 err = -EOPNOTSUPP;
8948 goto out;
8949 }
8950
e35e4d28 8951 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8952 out:
8953 wdev_unlock(wdev);
8954 return err;
8955}
8956
28946da7
JB		 8957static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8958 struct genl_info *info)
8959{
8960 struct net_device *dev = info->user_ptr[1];
8961 struct wireless_dev *wdev = dev->ieee80211_ptr;
8962
8963 if (wdev->iftype != NL80211_IFTYPE_AP &&
8964 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8965 return -EINVAL;
8966
15e47304 8967 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8968 return -EBUSY;
8969
15e47304 8970 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8971 return 0;
8972}
8973
7f6cf311
JB		 8974static int nl80211_probe_client(struct sk_buff *skb,
8975 struct genl_info *info)
8976{
8977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8978 struct net_device *dev = info->user_ptr[1];
8979 struct wireless_dev *wdev = dev->ieee80211_ptr;
8980 struct sk_buff *msg;
8981 void *hdr;
8982 const u8 *addr;
8983 u64 cookie;
8984 int err;
8985
8986 if (wdev->iftype != NL80211_IFTYPE_AP &&
8987 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8988 return -EOPNOTSUPP;
8989
8990 if (!info->attrs[NL80211_ATTR_MAC])
8991 return -EINVAL;
8992
8993 if (!rdev->ops->probe_client)
8994 return -EOPNOTSUPP;
8995
8996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8997 if (!msg)
8998 return -ENOMEM;
8999
15e47304 9000 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9001 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9002 if (!hdr) {
9003 err = -ENOBUFS;
7f6cf311
JB		 9004 goto free_msg;
9005 }
9006
9007 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9008
e35e4d28 9009 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9010 if (err)
9011 goto free_msg;
9012
9360ffd1
DM		 9013 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9014 goto nla_put_failure;
7f6cf311
JB		 9015
9016 genlmsg_end(msg, hdr);
9017
9018 return genlmsg_reply(msg, info);
9019
9020 nla_put_failure:
9021 err = -ENOBUFS;
9022 free_msg:
9023 nlmsg_free(msg);
9024 return err;
9025}
9026
5e760230
JB		 9027static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9028{
9029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9030 struct cfg80211_beacon_registration *reg, *nreg;
9031 int rv;
5e760230
JB		 9032
9033 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9034 return -EOPNOTSUPP;
9035
37c73b5f
BG		 9036 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9037 if (!nreg)
9038 return -ENOMEM;
9039
9040 /* First, check if already registered. */
9041 spin_lock_bh(&rdev->beacon_registrations_lock);
9042 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9043 if (reg->nlportid == info->snd_portid) {
9044 rv = -EALREADY;
9045 goto out_err;
9046 }
9047 }
9048 /* Add it to the list */
9049 nreg->nlportid = info->snd_portid;
9050 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9051
37c73b5f 9052 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9053
9054 return 0;
37c73b5f
BG		 9055out_err:
9056 spin_unlock_bh(&rdev->beacon_registrations_lock);
9057 kfree(nreg);
9058 return rv;
5e760230
JB		 9059}
9060
98104fde
JB		 9061static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9062{
9063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9064 struct wireless_dev *wdev = info->user_ptr[1];
9065 int err;
9066
9067 if (!rdev->ops->start_p2p_device)
9068 return -EOPNOTSUPP;
9069
9070 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9071 return -EOPNOTSUPP;
9072
9073 if (wdev->p2p_started)
9074 return 0;
9075
b6a55015
LC		 9076 if (rfkill_blocked(rdev->rfkill))
9077 return -ERFKILL;
98104fde 9078
eeb126e9 9079 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9080 if (err)
9081 return err;
9082
9083 wdev->p2p_started = true;
98104fde 9084 rdev->opencount++;
98104fde
JB		 9085
9086 return 0;
9087}
9088
9089static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9090{
9091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9092 struct wireless_dev *wdev = info->user_ptr[1];
9093
9094 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9095 return -EOPNOTSUPP;
9096
9097 if (!rdev->ops->stop_p2p_device)
9098 return -EOPNOTSUPP;
9099
f9f47529 9100 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9101
9102 return 0;
9103}
9104
3713b4e3
JB		 9105static int nl80211_get_protocol_features(struct sk_buff *skb,
9106 struct genl_info *info)
9107{
9108 void *hdr;
9109 struct sk_buff *msg;
9110
9111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9112 if (!msg)
9113 return -ENOMEM;
9114
9115 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9116 NL80211_CMD_GET_PROTOCOL_FEATURES);
9117 if (!hdr)
9118 goto nla_put_failure;
9119
9120 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9121 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9122 goto nla_put_failure;
9123
9124 genlmsg_end(msg, hdr);
9125 return genlmsg_reply(msg, info);
9126
9127 nla_put_failure:
9128 kfree_skb(msg);
9129 return -ENOBUFS;
9130}
9131
355199e0
JM		 9132static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9133{
9134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9135 struct cfg80211_update_ft_ies_params ft_params;
9136 struct net_device *dev = info->user_ptr[1];
9137
9138 if (!rdev->ops->update_ft_ies)
9139 return -EOPNOTSUPP;
9140
9141 if (!info->attrs[NL80211_ATTR_MDID] ||
9142 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9143 return -EINVAL;
9144
9145 memset(&ft_params, 0, sizeof(ft_params));
9146 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9147 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9148 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9149
9150 return rdev_update_ft_ies(rdev, dev, &ft_params);
9151}
9152
5de17984
AS		 9153static int nl80211_crit_protocol_start(struct sk_buff *skb,
9154 struct genl_info *info)
9155{
9156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9157 struct wireless_dev *wdev = info->user_ptr[1];
9158 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9159 u16 duration;
9160 int ret;
9161
9162 if (!rdev->ops->crit_proto_start)
9163 return -EOPNOTSUPP;
9164
9165 if (WARN_ON(!rdev->ops->crit_proto_stop))
9166 return -EINVAL;
9167
9168 if (rdev->crit_proto_nlportid)
9169 return -EBUSY;
9170
9171 /* determine protocol if provided */
9172 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9173 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9174
9175 if (proto >= NUM_NL80211_CRIT_PROTO)
9176 return -EINVAL;
9177
9178 /* timeout must be provided */
9179 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9180 return -EINVAL;
9181
9182 duration =
9183 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9184
9185 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9186 return -ERANGE;
9187
9188 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9189 if (!ret)
9190 rdev->crit_proto_nlportid = info->snd_portid;
9191
9192 return ret;
9193}
9194
9195static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9196 struct genl_info *info)
9197{
9198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9199 struct wireless_dev *wdev = info->user_ptr[1];
9200
9201 if (!rdev->ops->crit_proto_stop)
9202 return -EOPNOTSUPP;
9203
9204 if (rdev->crit_proto_nlportid) {
9205 rdev->crit_proto_nlportid = 0;
9206 rdev_crit_proto_stop(rdev, wdev);
9207 }
9208 return 0;
9209}
9210
ad7e718c
JB		 9211static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9212{
9213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9214 struct wireless_dev *wdev =
9215 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9216 int i, err;
9217 u32 vid, subcmd;
9218
9219 if (!rdev->wiphy.vendor_commands)
9220 return -EOPNOTSUPP;
9221
9222 if (IS_ERR(wdev)) {
9223 err = PTR_ERR(wdev);
9224 if (err != -EINVAL)
9225 return err;
9226 wdev = NULL;
9227 } else if (wdev->wiphy != &rdev->wiphy) {
9228 return -EINVAL;
9229 }
9230
9231 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9232 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9233 return -EINVAL;
9234
9235 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9236 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9237 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9238 const struct wiphy_vendor_command *vcmd;
9239 void *data = NULL;
9240 int len = 0;
9241
9242 vcmd = &rdev->wiphy.vendor_commands[i];
9243
9244 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9245 continue;
9246
9247 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9248 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9249 if (!wdev)
9250 return -EINVAL;
9251 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9252 !wdev->netdev)
9253 return -EINVAL;
9254
9255 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9256 if (wdev->netdev &&
9257 !netif_running(wdev->netdev))
9258 return -ENETDOWN;
9259 if (!wdev->netdev && !wdev->p2p_started)
9260 return -ENETDOWN;
9261 }
9262 } else {
9263 wdev = NULL;
9264 }
9265
9266 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9267 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9268 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9269 }
9270
9271 rdev->cur_cmd_info = info;
9272 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9273 data, len);
9274 rdev->cur_cmd_info = NULL;
9275 return err;
9276 }
9277
9278 return -EOPNOTSUPP;
9279}
9280
9281struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9282 enum nl80211_commands cmd,
9283 enum nl80211_attrs attr,
9284 int approxlen)
9285{
f26cbf40 9286 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9287
9288 if (WARN_ON(!rdev->cur_cmd_info))
9289 return NULL;
9290
9291 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9292 rdev->cur_cmd_info->snd_portid,
9293 rdev->cur_cmd_info->snd_seq,
567ffc35 9294 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9295}
9296EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9297
9298int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9299{
9300 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9301 void *hdr = ((void **)skb->cb)[1];
9302 struct nlattr *data = ((void **)skb->cb)[2];
9303
9304 if (WARN_ON(!rdev->cur_cmd_info)) {
9305 kfree_skb(skb);
9306 return -EINVAL;
9307 }
9308
9309 nla_nest_end(skb, data);
9310 genlmsg_end(skb, hdr);
9311 return genlmsg_reply(skb, rdev->cur_cmd_info);
9312}
9313EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9314
9315
fa9ffc74
KP		 9316static int nl80211_set_qos_map(struct sk_buff *skb,
9317 struct genl_info *info)
9318{
9319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9320 struct cfg80211_qos_map *qos_map = NULL;
9321 struct net_device *dev = info->user_ptr[1];
9322 u8 *pos, len, num_des, des_len, des;
9323 int ret;
9324
9325 if (!rdev->ops->set_qos_map)
9326 return -EOPNOTSUPP;
9327
9328 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9329 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9330 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9331
9332 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9333 len > IEEE80211_QOS_MAP_LEN_MAX)
9334 return -EINVAL;
9335
9336 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9337 if (!qos_map)
9338 return -ENOMEM;
9339
9340 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9341 if (num_des) {
9342 des_len = num_des *
9343 sizeof(struct cfg80211_dscp_exception);
9344 memcpy(qos_map->dscp_exception, pos, des_len);
9345 qos_map->num_des = num_des;
9346 for (des = 0; des < num_des; des++) {
9347 if (qos_map->dscp_exception[des].up > 7) {
9348 kfree(qos_map);
9349 return -EINVAL;
9350 }
9351 }
9352 pos += des_len;
9353 }
9354 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9355 }
9356
9357 wdev_lock(dev->ieee80211_ptr);
9358 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9359 if (!ret)
9360 ret = rdev_set_qos_map(rdev, dev, qos_map);
9361 wdev_unlock(dev->ieee80211_ptr);
9362
9363 kfree(qos_map);
9364 return ret;
9365}
9366
4c476991
JB		 9367#define NL80211_FLAG_NEED_WIPHY 0x01
9368#define NL80211_FLAG_NEED_NETDEV 0x02
9369#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9370#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9371#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9372 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9373#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9374/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9375#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9376 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9377
f84f771d 9378static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9379 struct genl_info *info)
9380{
9381 struct cfg80211_registered_device *rdev;
89a54e48 9382 struct wireless_dev *wdev;
4c476991 9383 struct net_device *dev;
4c476991
JB		 9384 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9385
9386 if (rtnl)
9387 rtnl_lock();
9388
9389 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9390 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9391 if (IS_ERR(rdev)) {
9392 if (rtnl)
9393 rtnl_unlock();
9394 return PTR_ERR(rdev);
9395 }
9396 info->user_ptr[0] = rdev;
1bf614ef
JB		 9397 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9398 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9399 ASSERT_RTNL();
9400
89a54e48
JB		 9401 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9402 info->attrs);
9403 if (IS_ERR(wdev)) {
4c476991
JB		 9404 if (rtnl)
9405 rtnl_unlock();
89a54e48 9406 return PTR_ERR(wdev);
4c476991 9407 }
89a54e48 9408
89a54e48 9409 dev = wdev->netdev;
f26cbf40 9410 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9411
1bf614ef
JB		 9412 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9413 if (!dev) {
1bf614ef
JB		 9414 if (rtnl)
9415 rtnl_unlock();
9416 return -EINVAL;
9417 }
9418
9419 info->user_ptr[1] = dev;
9420 } else {
9421 info->user_ptr[1] = wdev;
41265714 9422 }
1bf614ef
JB		 9423
9424 if (dev) {
9425 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9426 !netif_running(dev)) {
1bf614ef
JB		 9427 if (rtnl)
9428 rtnl_unlock();
9429 return -ENETDOWN;
9430 }
9431
9432 dev_hold(dev);
98104fde
JB		 9433 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9434 if (!wdev->p2p_started) {
98104fde
JB		 9435 if (rtnl)
9436 rtnl_unlock();
9437 return -ENETDOWN;
9438 }
41265714 9439 }
89a54e48 9440
4c476991 9441 info->user_ptr[0] = rdev;
4c476991
JB		 9442 }
9443
9444 return 0;
9445}
9446
f84f771d 9447static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9448 struct genl_info *info)
9449{
1bf614ef
JB		 9450 if (info->user_ptr[1]) {
9451 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9452 struct wireless_dev *wdev = info->user_ptr[1];
9453
9454 if (wdev->netdev)
9455 dev_put(wdev->netdev);
9456 } else {
9457 dev_put(info->user_ptr[1]);
9458 }
9459 }
4c476991
JB		 9460 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9461 rtnl_unlock();
9462}
9463
4534de83 9464static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9465 {
9466 .cmd = NL80211_CMD_GET_WIPHY,
9467 .doit = nl80211_get_wiphy,
9468 .dumpit = nl80211_dump_wiphy,
86e8cf98 9469 .done = nl80211_dump_wiphy_done,
55682965
JB		 9470 .policy = nl80211_policy,
9471 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9472 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9473 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9474 },
9475 {
9476 .cmd = NL80211_CMD_SET_WIPHY,
9477 .doit = nl80211_set_wiphy,
9478 .policy = nl80211_policy,
9479 .flags = GENL_ADMIN_PERM,
4c476991 9480 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9481 },
9482 {
9483 .cmd = NL80211_CMD_GET_INTERFACE,
9484 .doit = nl80211_get_interface,
9485 .dumpit = nl80211_dump_interface,
9486 .policy = nl80211_policy,
9487 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9488 .internal_flags = NL80211_FLAG_NEED_WDEV |
9489 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9490 },
9491 {
9492 .cmd = NL80211_CMD_SET_INTERFACE,
9493 .doit = nl80211_set_interface,
9494 .policy = nl80211_policy,
9495 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9497 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9498 },
9499 {
9500 .cmd = NL80211_CMD_NEW_INTERFACE,
9501 .doit = nl80211_new_interface,
9502 .policy = nl80211_policy,
9503 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9504 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9505 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9506 },
9507 {
9508 .cmd = NL80211_CMD_DEL_INTERFACE,
9509 .doit = nl80211_del_interface,
9510 .policy = nl80211_policy,
41ade00f 9511 .flags = GENL_ADMIN_PERM,
84efbb84 9512 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9513 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9514 },
9515 {
9516 .cmd = NL80211_CMD_GET_KEY,
9517 .doit = nl80211_get_key,
9518 .policy = nl80211_policy,
9519 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9521 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9522 },
9523 {
9524 .cmd = NL80211_CMD_SET_KEY,
9525 .doit = nl80211_set_key,
9526 .policy = nl80211_policy,
9527 .flags = GENL_ADMIN_PERM,
41265714 9528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9529 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9530 },
9531 {
9532 .cmd = NL80211_CMD_NEW_KEY,
9533 .doit = nl80211_new_key,
9534 .policy = nl80211_policy,
9535 .flags = GENL_ADMIN_PERM,
41265714 9536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9537 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9538 },
9539 {
9540 .cmd = NL80211_CMD_DEL_KEY,
9541 .doit = nl80211_del_key,
9542 .policy = nl80211_policy,
55682965 9543 .flags = GENL_ADMIN_PERM,
41265714 9544 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9545 NL80211_FLAG_NEED_RTNL,
55682965 9546 },
ed1b6cc7
JB		 9547 {
9548 .cmd = NL80211_CMD_SET_BEACON,
9549 .policy = nl80211_policy,
9550 .flags = GENL_ADMIN_PERM,
8860020e 9551 .doit = nl80211_set_beacon,
2b5f8b0b 9552 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9553 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9554 },
9555 {
8860020e 9556 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9557 .policy = nl80211_policy,
9558 .flags = GENL_ADMIN_PERM,
8860020e 9559 .doit = nl80211_start_ap,
2b5f8b0b 9560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9561 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9562 },
9563 {
8860020e 9564 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9565 .policy = nl80211_policy,
9566 .flags = GENL_ADMIN_PERM,
8860020e 9567 .doit = nl80211_stop_ap,
2b5f8b0b 9568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9569 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9570 },
5727ef1b
JB		 9571 {
9572 .cmd = NL80211_CMD_GET_STATION,
9573 .doit = nl80211_get_station,
2ec600d6 9574 .dumpit = nl80211_dump_station,
5727ef1b 9575 .policy = nl80211_policy,
4c476991
JB		 9576 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9577 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9578 },
9579 {
9580 .cmd = NL80211_CMD_SET_STATION,
9581 .doit = nl80211_set_station,
9582 .policy = nl80211_policy,
9583 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9585 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9586 },
9587 {
9588 .cmd = NL80211_CMD_NEW_STATION,
9589 .doit = nl80211_new_station,
9590 .policy = nl80211_policy,
9591 .flags = GENL_ADMIN_PERM,
41265714 9592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9593 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9594 },
9595 {
9596 .cmd = NL80211_CMD_DEL_STATION,
9597 .doit = nl80211_del_station,
9598 .policy = nl80211_policy,
2ec600d6 9599 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9601 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9602 },
9603 {
9604 .cmd = NL80211_CMD_GET_MPATH,
9605 .doit = nl80211_get_mpath,
9606 .dumpit = nl80211_dump_mpath,
9607 .policy = nl80211_policy,
9608 .flags = GENL_ADMIN_PERM,
41265714 9609 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9610 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9611 },
9612 {
9613 .cmd = NL80211_CMD_SET_MPATH,
9614 .doit = nl80211_set_mpath,
9615 .policy = nl80211_policy,
9616 .flags = GENL_ADMIN_PERM,
41265714 9617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9618 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9619 },
9620 {
9621 .cmd = NL80211_CMD_NEW_MPATH,
9622 .doit = nl80211_new_mpath,
9623 .policy = nl80211_policy,
9624 .flags = GENL_ADMIN_PERM,
41265714 9625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9626 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9627 },
9628 {
9629 .cmd = NL80211_CMD_DEL_MPATH,
9630 .doit = nl80211_del_mpath,
9631 .policy = nl80211_policy,
9f1ba906 9632 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9634 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9635 },
9636 {
9637 .cmd = NL80211_CMD_SET_BSS,
9638 .doit = nl80211_set_bss,
9639 .policy = nl80211_policy,
b2e1b302 9640 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9642 NL80211_FLAG_NEED_RTNL,
b2e1b302 9643 },
f130347c
LR		 9644 {
9645 .cmd = NL80211_CMD_GET_REG,
9646 .doit = nl80211_get_reg,
9647 .policy = nl80211_policy,
5fe231e8 9648 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9649 /* can be retrieved by unprivileged users */
9650 },
b2e1b302
LR		 9651 {
9652 .cmd = NL80211_CMD_SET_REG,
9653 .doit = nl80211_set_reg,
9654 .policy = nl80211_policy,
9655 .flags = GENL_ADMIN_PERM,
5fe231e8 9656 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9657 },
9658 {
9659 .cmd = NL80211_CMD_REQ_SET_REG,
9660 .doit = nl80211_req_set_reg,
9661 .policy = nl80211_policy,
93da9cc1 9662 .flags = GENL_ADMIN_PERM,
9663 },
9664 {
24bdd9f4
JC		 9665 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9666 .doit = nl80211_get_mesh_config,
93da9cc1 9667 .policy = nl80211_policy,
9668 /* can be retrieved by unprivileged users */
2b5f8b0b 9669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9670 NL80211_FLAG_NEED_RTNL,
93da9cc1 9671 },
9672 {
24bdd9f4
JC		 9673 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9674 .doit = nl80211_update_mesh_config,
93da9cc1 9675 .policy = nl80211_policy,
9aed3cc1 9676 .flags = GENL_ADMIN_PERM,
29cbe68c 9677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9678 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9679 },
2a519311
JB		 9680 {
9681 .cmd = NL80211_CMD_TRIGGER_SCAN,
9682 .doit = nl80211_trigger_scan,
9683 .policy = nl80211_policy,
9684 .flags = GENL_ADMIN_PERM,
fd014284 9685 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9686 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9687 },
9688 {
9689 .cmd = NL80211_CMD_GET_SCAN,
9690 .policy = nl80211_policy,
9691 .dumpit = nl80211_dump_scan,
9692 },
807f8a8c
LC		 9693 {
9694 .cmd = NL80211_CMD_START_SCHED_SCAN,
9695 .doit = nl80211_start_sched_scan,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
9698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9699 NL80211_FLAG_NEED_RTNL,
9700 },
9701 {
9702 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9703 .doit = nl80211_stop_sched_scan,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
9706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9707 NL80211_FLAG_NEED_RTNL,
9708 },
636a5d36
JM		 9709 {
9710 .cmd = NL80211_CMD_AUTHENTICATE,
9711 .doit = nl80211_authenticate,
9712 .policy = nl80211_policy,
9713 .flags = GENL_ADMIN_PERM,
41265714 9714 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9715 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9716 },
9717 {
9718 .cmd = NL80211_CMD_ASSOCIATE,
9719 .doit = nl80211_associate,
9720 .policy = nl80211_policy,
9721 .flags = GENL_ADMIN_PERM,
41265714 9722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9723 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9724 },
9725 {
9726 .cmd = NL80211_CMD_DEAUTHENTICATE,
9727 .doit = nl80211_deauthenticate,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
41265714 9730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9731 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9732 },
9733 {
9734 .cmd = NL80211_CMD_DISASSOCIATE,
9735 .doit = nl80211_disassociate,
9736 .policy = nl80211_policy,
9737 .flags = GENL_ADMIN_PERM,
41265714 9738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9739 NL80211_FLAG_NEED_RTNL,
636a5d36 9740 },
04a773ad
JB		 9741 {
9742 .cmd = NL80211_CMD_JOIN_IBSS,
9743 .doit = nl80211_join_ibss,
9744 .policy = nl80211_policy,
9745 .flags = GENL_ADMIN_PERM,
41265714 9746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9747 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9748 },
9749 {
9750 .cmd = NL80211_CMD_LEAVE_IBSS,
9751 .doit = nl80211_leave_ibss,
9752 .policy = nl80211_policy,
9753 .flags = GENL_ADMIN_PERM,
41265714 9754 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9755 NL80211_FLAG_NEED_RTNL,
04a773ad 9756 },
aff89a9b
JB		 9757#ifdef CONFIG_NL80211_TESTMODE
9758 {
9759 .cmd = NL80211_CMD_TESTMODE,
9760 .doit = nl80211_testmode_do,
71063f0e 9761 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9762 .policy = nl80211_policy,
9763 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9764 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9765 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9766 },
9767#endif
b23aa676
SO		 9768 {
9769 .cmd = NL80211_CMD_CONNECT,
9770 .doit = nl80211_connect,
9771 .policy = nl80211_policy,
9772 .flags = GENL_ADMIN_PERM,
41265714 9773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9774 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9775 },
9776 {
9777 .cmd = NL80211_CMD_DISCONNECT,
9778 .doit = nl80211_disconnect,
9779 .policy = nl80211_policy,
9780 .flags = GENL_ADMIN_PERM,
41265714 9781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9782 NL80211_FLAG_NEED_RTNL,
b23aa676 9783 },
463d0183
JB		 9784 {
9785 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9786 .doit = nl80211_wiphy_netns,
9787 .policy = nl80211_policy,
9788 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9789 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9790 NL80211_FLAG_NEED_RTNL,
463d0183 9791 },
61fa713c
HS		 9792 {
9793 .cmd = NL80211_CMD_GET_SURVEY,
9794 .policy = nl80211_policy,
9795 .dumpit = nl80211_dump_survey,
9796 },
67fbb16b
SO		 9797 {
9798 .cmd = NL80211_CMD_SET_PMKSA,
9799 .doit = nl80211_setdel_pmksa,
9800 .policy = nl80211_policy,
9801 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9803 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9804 },
9805 {
9806 .cmd = NL80211_CMD_DEL_PMKSA,
9807 .doit = nl80211_setdel_pmksa,
9808 .policy = nl80211_policy,
9809 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9811 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9812 },
9813 {
9814 .cmd = NL80211_CMD_FLUSH_PMKSA,
9815 .doit = nl80211_flush_pmksa,
9816 .policy = nl80211_policy,
9817 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9819 NL80211_FLAG_NEED_RTNL,
67fbb16b 9820 },
9588bbd5
JM		 9821 {
9822 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9823 .doit = nl80211_remain_on_channel,
9824 .policy = nl80211_policy,
9825 .flags = GENL_ADMIN_PERM,
71bbc994 9826 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9827 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9828 },
9829 {
9830 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9831 .doit = nl80211_cancel_remain_on_channel,
9832 .policy = nl80211_policy,
9833 .flags = GENL_ADMIN_PERM,
71bbc994 9834 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9835 NL80211_FLAG_NEED_RTNL,
9588bbd5 9836 },
13ae75b1
JM		 9837 {
9838 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9839 .doit = nl80211_set_tx_bitrate_mask,
9840 .policy = nl80211_policy,
9841 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9842 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9843 NL80211_FLAG_NEED_RTNL,
13ae75b1 9844 },
026331c4 9845 {
2e161f78
JB		 9846 .cmd = NL80211_CMD_REGISTER_FRAME,
9847 .doit = nl80211_register_mgmt,
026331c4
JM		 9848 .policy = nl80211_policy,
9849 .flags = GENL_ADMIN_PERM,
71bbc994 9850 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9851 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9852 },
9853 {
2e161f78
JB		 9854 .cmd = NL80211_CMD_FRAME,
9855 .doit = nl80211_tx_mgmt,
026331c4 9856 .policy = nl80211_policy,
f7ca38df 9857 .flags = GENL_ADMIN_PERM,
71bbc994 9858 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9859 NL80211_FLAG_NEED_RTNL,
9860 },
9861 {
9862 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9863 .doit = nl80211_tx_mgmt_cancel_wait,
9864 .policy = nl80211_policy,
026331c4 9865 .flags = GENL_ADMIN_PERM,
71bbc994 9866 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9867 NL80211_FLAG_NEED_RTNL,
026331c4 9868 },
ffb9eb3d
KV		 9869 {
9870 .cmd = NL80211_CMD_SET_POWER_SAVE,
9871 .doit = nl80211_set_power_save,
9872 .policy = nl80211_policy,
9873 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9874 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9875 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9876 },
9877 {
9878 .cmd = NL80211_CMD_GET_POWER_SAVE,
9879 .doit = nl80211_get_power_save,
9880 .policy = nl80211_policy,
9881 /* can be retrieved by unprivileged users */
4c476991
JB		 9882 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9883 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9884 },
d6dc1a38
JO		 9885 {
9886 .cmd = NL80211_CMD_SET_CQM,
9887 .doit = nl80211_set_cqm,
9888 .policy = nl80211_policy,
9889 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9890 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9891 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9892 },
f444de05
JB		 9893 {
9894 .cmd = NL80211_CMD_SET_CHANNEL,
9895 .doit = nl80211_set_channel,
9896 .policy = nl80211_policy,
9897 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9898 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9899 NL80211_FLAG_NEED_RTNL,
f444de05 9900 },
e8347eba
BJ		 9901 {
9902 .cmd = NL80211_CMD_SET_WDS_PEER,
9903 .doit = nl80211_set_wds_peer,
9904 .policy = nl80211_policy,
9905 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9906 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9907 NL80211_FLAG_NEED_RTNL,
e8347eba 9908 },
29cbe68c
JB		 9909 {
9910 .cmd = NL80211_CMD_JOIN_MESH,
9911 .doit = nl80211_join_mesh,
9912 .policy = nl80211_policy,
9913 .flags = GENL_ADMIN_PERM,
9914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9915 NL80211_FLAG_NEED_RTNL,
9916 },
9917 {
9918 .cmd = NL80211_CMD_LEAVE_MESH,
9919 .doit = nl80211_leave_mesh,
9920 .policy = nl80211_policy,
9921 .flags = GENL_ADMIN_PERM,
9922 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9923 NL80211_FLAG_NEED_RTNL,
9924 },
dfb89c56 9925#ifdef CONFIG_PM
ff1b6e69
JB		 9926 {
9927 .cmd = NL80211_CMD_GET_WOWLAN,
9928 .doit = nl80211_get_wowlan,
9929 .policy = nl80211_policy,
9930 /* can be retrieved by unprivileged users */
9931 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9932 NL80211_FLAG_NEED_RTNL,
9933 },
9934 {
9935 .cmd = NL80211_CMD_SET_WOWLAN,
9936 .doit = nl80211_set_wowlan,
9937 .policy = nl80211_policy,
9938 .flags = GENL_ADMIN_PERM,
9939 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9940 NL80211_FLAG_NEED_RTNL,
9941 },
dfb89c56 9942#endif
e5497d76
JB		 9943 {
9944 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9945 .doit = nl80211_set_rekey_data,
9946 .policy = nl80211_policy,
9947 .flags = GENL_ADMIN_PERM,
9948 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9949 NL80211_FLAG_NEED_RTNL,
9950 },
109086ce
AN		 9951 {
9952 .cmd = NL80211_CMD_TDLS_MGMT,
9953 .doit = nl80211_tdls_mgmt,
9954 .policy = nl80211_policy,
9955 .flags = GENL_ADMIN_PERM,
9956 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9957 NL80211_FLAG_NEED_RTNL,
9958 },
9959 {
9960 .cmd = NL80211_CMD_TDLS_OPER,
9961 .doit = nl80211_tdls_oper,
9962 .policy = nl80211_policy,
9963 .flags = GENL_ADMIN_PERM,
9964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9965 NL80211_FLAG_NEED_RTNL,
9966 },
28946da7
JB		 9967 {
9968 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9969 .doit = nl80211_register_unexpected_frame,
9970 .policy = nl80211_policy,
9971 .flags = GENL_ADMIN_PERM,
9972 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9973 NL80211_FLAG_NEED_RTNL,
9974 },
7f6cf311
JB		 9975 {
9976 .cmd = NL80211_CMD_PROBE_CLIENT,
9977 .doit = nl80211_probe_client,
9978 .policy = nl80211_policy,
9979 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9980 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9981 NL80211_FLAG_NEED_RTNL,
9982 },
5e760230
JB		 9983 {
9984 .cmd = NL80211_CMD_REGISTER_BEACONS,
9985 .doit = nl80211_register_beacons,
9986 .policy = nl80211_policy,
9987 .flags = GENL_ADMIN_PERM,
9988 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9989 NL80211_FLAG_NEED_RTNL,
9990 },
1d9d9213
SW		 9991 {
9992 .cmd = NL80211_CMD_SET_NOACK_MAP,
9993 .doit = nl80211_set_noack_map,
9994 .policy = nl80211_policy,
9995 .flags = GENL_ADMIN_PERM,
9996 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9997 NL80211_FLAG_NEED_RTNL,
9998 },
98104fde
JB		 9999 {
10000 .cmd = NL80211_CMD_START_P2P_DEVICE,
10001 .doit = nl80211_start_p2p_device,
10002 .policy = nl80211_policy,
10003 .flags = GENL_ADMIN_PERM,
10004 .internal_flags = NL80211_FLAG_NEED_WDEV |
10005 NL80211_FLAG_NEED_RTNL,
10006 },
10007 {
10008 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10009 .doit = nl80211_stop_p2p_device,
10010 .policy = nl80211_policy,
10011 .flags = GENL_ADMIN_PERM,
10012 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10013 NL80211_FLAG_NEED_RTNL,
10014 },
f4e583c8
AQ		 10015 {
10016 .cmd = NL80211_CMD_SET_MCAST_RATE,
10017 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10018 .policy = nl80211_policy,
10019 .flags = GENL_ADMIN_PERM,
10020 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10021 NL80211_FLAG_NEED_RTNL,
10022 },
10023 {
10024 .cmd = NL80211_CMD_SET_MAC_ACL,
10025 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10026 .policy = nl80211_policy,
10027 .flags = GENL_ADMIN_PERM,
10028 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10029 NL80211_FLAG_NEED_RTNL,
10030 },
04f39047
SW		 10031 {
10032 .cmd = NL80211_CMD_RADAR_DETECT,
10033 .doit = nl80211_start_radar_detection,
10034 .policy = nl80211_policy,
10035 .flags = GENL_ADMIN_PERM,
10036 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10037 NL80211_FLAG_NEED_RTNL,
10038 },
3713b4e3
JB		 10039 {
10040 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10041 .doit = nl80211_get_protocol_features,
10042 .policy = nl80211_policy,
10043 },
355199e0
JM		 10044 {
10045 .cmd = NL80211_CMD_UPDATE_FT_IES,
10046 .doit = nl80211_update_ft_ies,
10047 .policy = nl80211_policy,
10048 .flags = GENL_ADMIN_PERM,
10049 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10050 NL80211_FLAG_NEED_RTNL,
10051 },
5de17984
AS		 10052 {
10053 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10054 .doit = nl80211_crit_protocol_start,
10055 .policy = nl80211_policy,
10056 .flags = GENL_ADMIN_PERM,
10057 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10058 NL80211_FLAG_NEED_RTNL,
10059 },
10060 {
10061 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10062 .doit = nl80211_crit_protocol_stop,
10063 .policy = nl80211_policy,
10064 .flags = GENL_ADMIN_PERM,
10065 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10066 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10067 },
10068 {
10069 .cmd = NL80211_CMD_GET_COALESCE,
10070 .doit = nl80211_get_coalesce,
10071 .policy = nl80211_policy,
10072 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10073 NL80211_FLAG_NEED_RTNL,
10074 },
10075 {
10076 .cmd = NL80211_CMD_SET_COALESCE,
10077 .doit = nl80211_set_coalesce,
10078 .policy = nl80211_policy,
10079 .flags = GENL_ADMIN_PERM,
10080 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10081 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10082 },
10083 {
10084 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10085 .doit = nl80211_channel_switch,
10086 .policy = nl80211_policy,
10087 .flags = GENL_ADMIN_PERM,
10088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10089 NL80211_FLAG_NEED_RTNL,
10090 },
ad7e718c
JB		 10091 {
10092 .cmd = NL80211_CMD_VENDOR,
10093 .doit = nl80211_vendor_cmd,
10094 .policy = nl80211_policy,
10095 .flags = GENL_ADMIN_PERM,
10096 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10097 NL80211_FLAG_NEED_RTNL,
10098 },
fa9ffc74
KP		 10099 {
10100 .cmd = NL80211_CMD_SET_QOS_MAP,
10101 .doit = nl80211_set_qos_map,
10102 .policy = nl80211_policy,
10103 .flags = GENL_ADMIN_PERM,
10104 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10105 NL80211_FLAG_NEED_RTNL,
10106 },
55682965 10107};
9588bbd5 10108
55682965
JB		 10109/* notification functions */
10110
3bb20556
JB		 10111void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10112 enum nl80211_commands cmd)
55682965
JB		 10113{
10114 struct sk_buff *msg;
86e8cf98 10115 struct nl80211_dump_wiphy_state state = {};
55682965 10116
3bb20556
JB		 10117 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10118 cmd != NL80211_CMD_DEL_WIPHY);
10119
fd2120ca 10120 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10121 if (!msg)
10122 return;
10123
3bb20556 10124 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10125 nlmsg_free(msg);
10126 return;
10127 }
10128
68eb5503 10129 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10130 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10131}
10132
362a415d
JB		 10133static int nl80211_add_scan_req(struct sk_buff *msg,
10134 struct cfg80211_registered_device *rdev)
10135{
10136 struct cfg80211_scan_request *req = rdev->scan_req;
10137 struct nlattr *nest;
10138 int i;
10139
10140 if (WARN_ON(!req))
10141 return 0;
10142
10143 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10144 if (!nest)
10145 goto nla_put_failure;
9360ffd1
DM		 10146 for (i = 0; i < req->n_ssids; i++) {
10147 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10148 goto nla_put_failure;
10149 }
362a415d
JB		 10150 nla_nest_end(msg, nest);
10151
10152 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10153 if (!nest)
10154 goto nla_put_failure;
9360ffd1
DM		 10155 for (i = 0; i < req->n_channels; i++) {
10156 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10157 goto nla_put_failure;
10158 }
362a415d
JB		 10159 nla_nest_end(msg, nest);
10160
9360ffd1
DM		 10161 if (req->ie &&
10162 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10163 goto nla_put_failure;
362a415d 10164
ae917c9f
JB		 10165 if (req->flags &&
10166 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10167 goto nla_put_failure;
ed473771 10168
362a415d
JB		 10169 return 0;
10170 nla_put_failure:
10171 return -ENOBUFS;
10172}
10173
a538e2d5
JB		 10174static int nl80211_send_scan_msg(struct sk_buff *msg,
10175 struct cfg80211_registered_device *rdev,
fd014284 10176 struct wireless_dev *wdev,
15e47304 10177 u32 portid, u32 seq, int flags,
a538e2d5 10178 u32 cmd)
2a519311
JB		 10179{
10180 void *hdr;
10181
15e47304 10182 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10183 if (!hdr)
10184 return -1;
10185
9360ffd1 10186 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10187 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10188 wdev->netdev->ifindex)) ||
10189 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10190 goto nla_put_failure;
2a519311 10191
362a415d
JB		 10192 /* ignore errors and send incomplete event anyway */
10193 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10194
10195 return genlmsg_end(msg, hdr);
10196
10197 nla_put_failure:
10198 genlmsg_cancel(msg, hdr);
10199 return -EMSGSIZE;
10200}
10201
807f8a8c
LC		 10202static int
10203nl80211_send_sched_scan_msg(struct sk_buff *msg,
10204 struct cfg80211_registered_device *rdev,
10205 struct net_device *netdev,
15e47304 10206 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10207{
10208 void *hdr;
10209
15e47304 10210 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10211 if (!hdr)
10212 return -1;
10213
9360ffd1
DM		 10214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10216 goto nla_put_failure;
807f8a8c
LC		 10217
10218 return genlmsg_end(msg, hdr);
10219
10220 nla_put_failure:
10221 genlmsg_cancel(msg, hdr);
10222 return -EMSGSIZE;
10223}
10224
a538e2d5 10225void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10226 struct wireless_dev *wdev)
a538e2d5
JB		 10227{
10228 struct sk_buff *msg;
10229
58050fce 10230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10231 if (!msg)
10232 return;
10233
fd014284 10234 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10235 NL80211_CMD_TRIGGER_SCAN) < 0) {
10236 nlmsg_free(msg);
10237 return;
10238 }
10239
68eb5503 10240 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10241 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10242}
10243
f9d15d16
JB		 10244struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10245 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10246{
10247 struct sk_buff *msg;
10248
fd2120ca 10249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10250 if (!msg)
f9d15d16 10251 return NULL;
2a519311 10252
fd014284 10253 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10254 aborted ? NL80211_CMD_SCAN_ABORTED :
10255 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10256 nlmsg_free(msg);
f9d15d16 10257 return NULL;
2a519311
JB		 10258 }
10259
f9d15d16 10260 return msg;
2a519311
JB		 10261}
10262
f9d15d16
JB		 10263void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10264 struct sk_buff *msg)
2a519311 10265{
2a519311
JB		 10266 if (!msg)
10267 return;
10268
68eb5503 10269 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10270 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10271}
10272
807f8a8c
LC		 10273void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10274 struct net_device *netdev)
10275{
10276 struct sk_buff *msg;
10277
10278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10279 if (!msg)
10280 return;
10281
10282 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10283 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10284 nlmsg_free(msg);
10285 return;
10286 }
10287
68eb5503 10288 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10289 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10290}
10291
10292void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10293 struct net_device *netdev, u32 cmd)
10294{
10295 struct sk_buff *msg;
10296
58050fce 10297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10298 if (!msg)
10299 return;
10300
10301 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10302 nlmsg_free(msg);
10303 return;
10304 }
10305
68eb5503 10306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10307 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10308}
10309
73d54c9e
LR		 10310/*
10311 * This can happen on global regulatory changes or device specific settings
10312 * based on custom world regulatory domains.
10313 */
10314void nl80211_send_reg_change_event(struct regulatory_request *request)
10315{
10316 struct sk_buff *msg;
10317 void *hdr;
10318
fd2120ca 10319 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10320 if (!msg)
10321 return;
10322
10323 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10324 if (!hdr) {
10325 nlmsg_free(msg);
10326 return;
10327 }
10328
10329 /* Userspace can always count this one always being set */
9360ffd1
DM		 10330 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10331 goto nla_put_failure;
10332
10333 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10334 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10335 NL80211_REGDOM_TYPE_WORLD))
10336 goto nla_put_failure;
10337 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10338 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10339 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10340 goto nla_put_failure;
10341 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10342 request->intersect) {
10343 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10344 NL80211_REGDOM_TYPE_INTERSECTION))
10345 goto nla_put_failure;
10346 } else {
10347 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10348 NL80211_REGDOM_TYPE_COUNTRY) ||
10349 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10350 request->alpha2))
10351 goto nla_put_failure;
10352 }
10353
f4173766 10354 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10355 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10356 goto nla_put_failure;
73d54c9e 10357
3b7b72ee 10358 genlmsg_end(msg, hdr);
73d54c9e 10359
bc43b28c 10360 rcu_read_lock();
68eb5503 10361 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10362 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10363 rcu_read_unlock();
73d54c9e
LR		 10364
10365 return;
10366
10367nla_put_failure:
10368 genlmsg_cancel(msg, hdr);
10369 nlmsg_free(msg);
10370}
10371
6039f6d2
JM		 10372static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10373 struct net_device *netdev,
10374 const u8 *buf, size_t len,
e6d6e342 10375 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10376{
10377 struct sk_buff *msg;
10378 void *hdr;
10379
e6d6e342 10380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10381 if (!msg)
10382 return;
10383
10384 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10385 if (!hdr) {
10386 nlmsg_free(msg);
10387 return;
10388 }
10389
9360ffd1
DM		 10390 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10391 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10392 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10393 goto nla_put_failure;
6039f6d2 10394
3b7b72ee 10395 genlmsg_end(msg, hdr);
6039f6d2 10396
68eb5503 10397 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10398 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10399 return;
10400
10401 nla_put_failure:
10402 genlmsg_cancel(msg, hdr);
10403 nlmsg_free(msg);
10404}
10405
10406void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10407 struct net_device *netdev, const u8 *buf,
10408 size_t len, gfp_t gfp)
6039f6d2
JM		 10409{
10410 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10411 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10412}
10413
10414void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10415 struct net_device *netdev, const u8 *buf,
e6d6e342 10416 size_t len, gfp_t gfp)
6039f6d2 10417{
e6d6e342
JB		 10418 nl80211_send_mlme_event(rdev, netdev, buf, len,
10419 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10420}
10421
53b46b84 10422void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10423 struct net_device *netdev, const u8 *buf,
10424 size_t len, gfp_t gfp)
6039f6d2
JM		 10425{
10426 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10427 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10428}
10429
53b46b84
JM		 10430void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10431 struct net_device *netdev, const u8 *buf,
e6d6e342 10432 size_t len, gfp_t gfp)
6039f6d2
JM		 10433{
10434 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10435 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10436}
10437
6ff57cf8
JB		 10438void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10439 size_t len)
cf4e594e 10440{
947add36
JB		 10441 struct wireless_dev *wdev = dev->ieee80211_ptr;
10442 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10443 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10444 const struct ieee80211_mgmt *mgmt = (void *)buf;
10445 u32 cmd;
947add36 10446
6ff57cf8
JB		 10447 if (WARN_ON(len < 2))
10448 return;
cf4e594e 10449
6ff57cf8
JB		 10450 if (ieee80211_is_deauth(mgmt->frame_control))
10451 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10452 else
10453 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10454
6ff57cf8
JB		 10455 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10456 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10457}
6ff57cf8 10458EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10459
1b06bb40
LR		 10460static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10461 struct net_device *netdev, int cmd,
e6d6e342 10462 const u8 *addr, gfp_t gfp)
1965c853
JM		 10463{
10464 struct sk_buff *msg;
10465 void *hdr;
10466
e6d6e342 10467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10468 if (!msg)
10469 return;
10470
10471 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10472 if (!hdr) {
10473 nlmsg_free(msg);
10474 return;
10475 }
10476
9360ffd1
DM		 10477 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10478 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10479 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10480 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10481 goto nla_put_failure;
1965c853 10482
3b7b72ee 10483 genlmsg_end(msg, hdr);
1965c853 10484
68eb5503 10485 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10486 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10487 return;
10488
10489 nla_put_failure:
10490 genlmsg_cancel(msg, hdr);
10491 nlmsg_free(msg);
10492}
10493
10494void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10495 struct net_device *netdev, const u8 *addr,
10496 gfp_t gfp)
1965c853
JM		 10497{
10498 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10499 addr, gfp);
1965c853
JM		 10500}
10501
10502void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10503 struct net_device *netdev, const u8 *addr,
10504 gfp_t gfp)
1965c853 10505{
e6d6e342
JB		 10506 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10507 addr, gfp);
1965c853
JM		 10508}
10509
b23aa676
SO		 10510void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10511 struct net_device *netdev, const u8 *bssid,
10512 const u8 *req_ie, size_t req_ie_len,
10513 const u8 *resp_ie, size_t resp_ie_len,
10514 u16 status, gfp_t gfp)
10515{
10516 struct sk_buff *msg;
10517 void *hdr;
10518
58050fce 10519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10520 if (!msg)
10521 return;
10522
10523 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10524 if (!hdr) {
10525 nlmsg_free(msg);
10526 return;
10527 }
10528
9360ffd1
DM		 10529 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10530 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10531 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10532 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10533 (req_ie &&
10534 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10535 (resp_ie &&
10536 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10537 goto nla_put_failure;
b23aa676 10538
3b7b72ee 10539 genlmsg_end(msg, hdr);
b23aa676 10540
68eb5503 10541 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10542 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10543 return;
10544
10545 nla_put_failure:
10546 genlmsg_cancel(msg, hdr);
10547 nlmsg_free(msg);
10548
10549}
10550
10551void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10552 struct net_device *netdev, const u8 *bssid,
10553 const u8 *req_ie, size_t req_ie_len,
10554 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10555{
10556 struct sk_buff *msg;
10557 void *hdr;
10558
58050fce 10559 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10560 if (!msg)
10561 return;
10562
10563 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10564 if (!hdr) {
10565 nlmsg_free(msg);
10566 return;
10567 }
10568
9360ffd1
DM		 10569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10571 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10572 (req_ie &&
10573 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10574 (resp_ie &&
10575 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10576 goto nla_put_failure;
b23aa676 10577
3b7b72ee 10578 genlmsg_end(msg, hdr);
b23aa676 10579
68eb5503 10580 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10581 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10582 return;
10583
10584 nla_put_failure:
10585 genlmsg_cancel(msg, hdr);
10586 nlmsg_free(msg);
10587
10588}
10589
10590void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10591 struct net_device *netdev, u16 reason,
667503dd 10592 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10593{
10594 struct sk_buff *msg;
10595 void *hdr;
10596
58050fce 10597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10598 if (!msg)
10599 return;
10600
10601 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10602 if (!hdr) {
10603 nlmsg_free(msg);
10604 return;
10605 }
10606
9360ffd1
DM		 10607 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10608 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10609 (from_ap && reason &&
10610 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10611 (from_ap &&
10612 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10613 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10614 goto nla_put_failure;
b23aa676 10615
3b7b72ee 10616 genlmsg_end(msg, hdr);
b23aa676 10617
68eb5503 10618 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10619 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10620 return;
10621
10622 nla_put_failure:
10623 genlmsg_cancel(msg, hdr);
10624 nlmsg_free(msg);
10625
10626}
10627
04a773ad
JB		 10628void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10629 struct net_device *netdev, const u8 *bssid,
10630 gfp_t gfp)
10631{
10632 struct sk_buff *msg;
10633 void *hdr;
10634
fd2120ca 10635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10636 if (!msg)
10637 return;
10638
10639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10640 if (!hdr) {
10641 nlmsg_free(msg);
10642 return;
10643 }
10644
9360ffd1
DM		 10645 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10646 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10647 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10648 goto nla_put_failure;
04a773ad 10649
3b7b72ee 10650 genlmsg_end(msg, hdr);
04a773ad 10651
68eb5503 10652 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10653 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10654 return;
10655
10656 nla_put_failure:
10657 genlmsg_cancel(msg, hdr);
10658 nlmsg_free(msg);
10659}
10660
947add36
JB		 10661void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10662 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10663{
947add36 10664 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10665 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10666 struct sk_buff *msg;
10667 void *hdr;
10668
947add36
JB		 10669 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10670 return;
10671
10672 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10673
c93b5e71
JC		 10674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10675 if (!msg)
10676 return;
10677
10678 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10679 if (!hdr) {
10680 nlmsg_free(msg);
10681 return;
10682 }
10683
9360ffd1 10684 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10685 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10686 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10687 (ie_len && ie &&
10688 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10689 goto nla_put_failure;
c93b5e71 10690
3b7b72ee 10691 genlmsg_end(msg, hdr);
c93b5e71 10692
68eb5503 10693 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10694 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10695 return;
10696
10697 nla_put_failure:
10698 genlmsg_cancel(msg, hdr);
10699 nlmsg_free(msg);
10700}
947add36 10701EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10702
a3b8b056
JM		 10703void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10704 struct net_device *netdev, const u8 *addr,
10705 enum nl80211_key_type key_type, int key_id,
e6d6e342 10706 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10707{
10708 struct sk_buff *msg;
10709 void *hdr;
10710
e6d6e342 10711 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10712 if (!msg)
10713 return;
10714
10715 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10716 if (!hdr) {
10717 nlmsg_free(msg);
10718 return;
10719 }
10720
9360ffd1
DM		 10721 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10722 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10723 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10724 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10725 (key_id != -1 &&
10726 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10727 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10728 goto nla_put_failure;
a3b8b056 10729
3b7b72ee 10730 genlmsg_end(msg, hdr);
a3b8b056 10731
68eb5503 10732 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10733 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10734 return;
10735
10736 nla_put_failure:
10737 genlmsg_cancel(msg, hdr);
10738 nlmsg_free(msg);
10739}
10740
6bad8766
LR		 10741void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10742 struct ieee80211_channel *channel_before,
10743 struct ieee80211_channel *channel_after)
10744{
10745 struct sk_buff *msg;
10746 void *hdr;
10747 struct nlattr *nl_freq;
10748
fd2120ca 10749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10750 if (!msg)
10751 return;
10752
10753 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10754 if (!hdr) {
10755 nlmsg_free(msg);
10756 return;
10757 }
10758
10759 /*
10760 * Since we are applying the beacon hint to a wiphy we know its
10761 * wiphy_idx is valid
10762 */
9360ffd1
DM		 10763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10764 goto nla_put_failure;
6bad8766
LR		 10765
10766 /* Before */
10767 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10768 if (!nl_freq)
10769 goto nla_put_failure;
cdc89b97 10770 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10771 goto nla_put_failure;
10772 nla_nest_end(msg, nl_freq);
10773
10774 /* After */
10775 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10776 if (!nl_freq)
10777 goto nla_put_failure;
cdc89b97 10778 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10779 goto nla_put_failure;
10780 nla_nest_end(msg, nl_freq);
10781
3b7b72ee 10782 genlmsg_end(msg, hdr);
6bad8766 10783
463d0183 10784 rcu_read_lock();
68eb5503 10785 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10786 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10787 rcu_read_unlock();
6bad8766
LR		 10788
10789 return;
10790
10791nla_put_failure:
10792 genlmsg_cancel(msg, hdr);
10793 nlmsg_free(msg);
10794}
10795
9588bbd5
JM		 10796static void nl80211_send_remain_on_chan_event(
10797 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10798 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10799 struct ieee80211_channel *chan,
9588bbd5
JM		 10800 unsigned int duration, gfp_t gfp)
10801{
10802 struct sk_buff *msg;
10803 void *hdr;
10804
10805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10806 if (!msg)
10807 return;
10808
10809 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10810 if (!hdr) {
10811 nlmsg_free(msg);
10812 return;
10813 }
10814
9360ffd1 10815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10816 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10817 wdev->netdev->ifindex)) ||
00f53350 10818 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10819 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10820 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10821 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10822 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10823 goto nla_put_failure;
9588bbd5 10824
9360ffd1
DM		 10825 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10826 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10827 goto nla_put_failure;
9588bbd5 10828
3b7b72ee 10829 genlmsg_end(msg, hdr);
9588bbd5 10830
68eb5503 10831 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10832 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10833 return;
10834
10835 nla_put_failure:
10836 genlmsg_cancel(msg, hdr);
10837 nlmsg_free(msg);
10838}
10839
947add36
JB		 10840void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10841 struct ieee80211_channel *chan,
10842 unsigned int duration, gfp_t gfp)
9588bbd5 10843{
947add36 10844 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10845 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10846
10847 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10848 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10849 rdev, wdev, cookie, chan,
42d97a59 10850 duration, gfp);
9588bbd5 10851}
947add36 10852EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10853
947add36
JB		 10854void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10855 struct ieee80211_channel *chan,
10856 gfp_t gfp)
9588bbd5 10857{
947add36 10858 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10859 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10860
10861 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10862 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10863 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10864}
947add36 10865EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10866
947add36
JB		 10867void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10868 struct station_info *sinfo, gfp_t gfp)
98b62183 10869{
947add36 10870 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10871 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10872 struct sk_buff *msg;
10873
947add36
JB		 10874 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10875
58050fce 10876 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10877 if (!msg)
10878 return;
10879
66266b3a
JL		 10880 if (nl80211_send_station(msg, 0, 0, 0,
10881 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10882 nlmsg_free(msg);
10883 return;
10884 }
10885
68eb5503 10886 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10887 NL80211_MCGRP_MLME, gfp);
98b62183 10888}
947add36 10889EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10890
947add36 10891void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10892{
947add36 10893 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10894 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10895 struct sk_buff *msg;
10896 void *hdr;
10897
947add36
JB		 10898 trace_cfg80211_del_sta(dev, mac_addr);
10899
58050fce 10900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10901 if (!msg)
10902 return;
10903
10904 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10905 if (!hdr) {
10906 nlmsg_free(msg);
10907 return;
10908 }
10909
9360ffd1
DM		 10910 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10911 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10912 goto nla_put_failure;
ec15e68b 10913
3b7b72ee 10914 genlmsg_end(msg, hdr);
ec15e68b 10915
68eb5503 10916 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10917 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10918 return;
10919
10920 nla_put_failure:
10921 genlmsg_cancel(msg, hdr);
10922 nlmsg_free(msg);
10923}
947add36 10924EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10925
947add36
JB		 10926void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10927 enum nl80211_connect_failed_reason reason,
10928 gfp_t gfp)
ed44a951 10929{
947add36 10930 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10931 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10932 struct sk_buff *msg;
10933 void *hdr;
10934
10935 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10936 if (!msg)
10937 return;
10938
10939 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10940 if (!hdr) {
10941 nlmsg_free(msg);
10942 return;
10943 }
10944
10945 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10946 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10947 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10948 goto nla_put_failure;
10949
10950 genlmsg_end(msg, hdr);
10951
68eb5503 10952 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10953 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10954 return;
10955
10956 nla_put_failure:
10957 genlmsg_cancel(msg, hdr);
10958 nlmsg_free(msg);
10959}
947add36 10960EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10961
b92ab5d8
JB		 10962static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10963 const u8 *addr, gfp_t gfp)
28946da7
JB		 10964{
10965 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10966 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10967 struct sk_buff *msg;
10968 void *hdr;
15e47304 10969 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10970
15e47304 10971 if (!nlportid)
28946da7
JB		 10972 return false;
10973
10974 msg = nlmsg_new(100, gfp);
10975 if (!msg)
10976 return true;
10977
b92ab5d8 10978 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10979 if (!hdr) {
10980 nlmsg_free(msg);
10981 return true;
10982 }
10983
9360ffd1
DM		 10984 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10985 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10986 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10987 goto nla_put_failure;
28946da7 10988
9c90a9f6 10989 genlmsg_end(msg, hdr);
15e47304 10990 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10991 return true;
10992
10993 nla_put_failure:
10994 genlmsg_cancel(msg, hdr);
10995 nlmsg_free(msg);
10996 return true;
10997}
10998
947add36
JB		 10999bool cfg80211_rx_spurious_frame(struct net_device *dev,
11000 const u8 *addr, gfp_t gfp)
b92ab5d8 11001{
947add36
JB		 11002 struct wireless_dev *wdev = dev->ieee80211_ptr;
11003 bool ret;
11004
11005 trace_cfg80211_rx_spurious_frame(dev, addr);
11006
11007 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11008 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11009 trace_cfg80211_return_bool(false);
11010 return false;
11011 }
11012 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11013 addr, gfp);
11014 trace_cfg80211_return_bool(ret);
11015 return ret;
b92ab5d8 11016}
947add36 11017EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11018
947add36
JB		 11019bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11020 const u8 *addr, gfp_t gfp)
b92ab5d8 11021{
947add36
JB		 11022 struct wireless_dev *wdev = dev->ieee80211_ptr;
11023 bool ret;
11024
11025 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11026
11027 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11028 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11029 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11030 trace_cfg80211_return_bool(false);
11031 return false;
11032 }
11033 ret = __nl80211_unexpected_frame(dev,
11034 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11035 addr, gfp);
11036 trace_cfg80211_return_bool(ret);
11037 return ret;
b92ab5d8 11038}
947add36 11039EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11040
2e161f78 11041int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11042 struct wireless_dev *wdev, u32 nlportid,
804483e9 11043 int freq, int sig_dbm,
19504cf5 11044 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11045{
71bbc994 11046 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11047 struct sk_buff *msg;
11048 void *hdr;
026331c4
JM		 11049
11050 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11051 if (!msg)
11052 return -ENOMEM;
11053
2e161f78 11054 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11055 if (!hdr) {
11056 nlmsg_free(msg);
11057 return -ENOMEM;
11058 }
11059
9360ffd1 11060 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11061 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11062 netdev->ifindex)) ||
a838490b 11063 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11064 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11065 (sig_dbm &&
11066 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11067 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11068 (flags &&
11069 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11070 goto nla_put_failure;
026331c4 11071
3b7b72ee 11072 genlmsg_end(msg, hdr);
026331c4 11073
15e47304 11074 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11075
11076 nla_put_failure:
11077 genlmsg_cancel(msg, hdr);
11078 nlmsg_free(msg);
11079 return -ENOBUFS;
11080}
11081
947add36
JB		 11082void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11083 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11084{
947add36 11085 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11086 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11087 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11088 struct sk_buff *msg;
11089 void *hdr;
11090
947add36
JB		 11091 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11092
026331c4
JM		 11093 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11094 if (!msg)
11095 return;
11096
2e161f78 11097 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11098 if (!hdr) {
11099 nlmsg_free(msg);
11100 return;
11101 }
11102
9360ffd1 11103 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11104 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11105 netdev->ifindex)) ||
a838490b 11106 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11107 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11108 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11109 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11110 goto nla_put_failure;
026331c4 11111
3b7b72ee 11112 genlmsg_end(msg, hdr);
026331c4 11113
68eb5503 11114 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11115 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11116 return;
11117
11118 nla_put_failure:
11119 genlmsg_cancel(msg, hdr);
11120 nlmsg_free(msg);
11121}
947add36 11122EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11123
947add36
JB		 11124void cfg80211_cqm_rssi_notify(struct net_device *dev,
11125 enum nl80211_cqm_rssi_threshold_event rssi_event,
11126 gfp_t gfp)
d6dc1a38 11127{
947add36
JB		 11128 struct wireless_dev *wdev = dev->ieee80211_ptr;
11129 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11130 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11131 struct sk_buff *msg;
11132 struct nlattr *pinfoattr;
11133 void *hdr;
11134
947add36
JB		 11135 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11136
58050fce 11137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11138 if (!msg)
11139 return;
11140
11141 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11142 if (!hdr) {
11143 nlmsg_free(msg);
11144 return;
11145 }
11146
9360ffd1 11147 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11148 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11149 goto nla_put_failure;
d6dc1a38
JO		 11150
11151 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11152 if (!pinfoattr)
11153 goto nla_put_failure;
11154
9360ffd1
DM		 11155 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11156 rssi_event))
11157 goto nla_put_failure;
d6dc1a38
JO		 11158
11159 nla_nest_end(msg, pinfoattr);
11160
3b7b72ee 11161 genlmsg_end(msg, hdr);
d6dc1a38 11162
68eb5503 11163 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11164 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11165 return;
11166
11167 nla_put_failure:
11168 genlmsg_cancel(msg, hdr);
11169 nlmsg_free(msg);
11170}
947add36 11171EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11172
947add36
JB		 11173static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11174 struct net_device *netdev, const u8 *bssid,
11175 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11176{
11177 struct sk_buff *msg;
11178 struct nlattr *rekey_attr;
11179 void *hdr;
11180
58050fce 11181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11182 if (!msg)
11183 return;
11184
11185 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11186 if (!hdr) {
11187 nlmsg_free(msg);
11188 return;
11189 }
11190
9360ffd1
DM		 11191 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11192 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11193 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11194 goto nla_put_failure;
e5497d76
JB		 11195
11196 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11197 if (!rekey_attr)
11198 goto nla_put_failure;
11199
9360ffd1
DM		 11200 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11201 NL80211_REPLAY_CTR_LEN, replay_ctr))
11202 goto nla_put_failure;
e5497d76
JB		 11203
11204 nla_nest_end(msg, rekey_attr);
11205
3b7b72ee 11206 genlmsg_end(msg, hdr);
e5497d76 11207
68eb5503 11208 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11209 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11210 return;
11211
11212 nla_put_failure:
11213 genlmsg_cancel(msg, hdr);
11214 nlmsg_free(msg);
11215}
11216
947add36
JB		 11217void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11218 const u8 *replay_ctr, gfp_t gfp)
11219{
11220 struct wireless_dev *wdev = dev->ieee80211_ptr;
11221 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11222 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11223
11224 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11225 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11226}
11227EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11228
11229static void
11230nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11231 struct net_device *netdev, int index,
11232 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11233{
11234 struct sk_buff *msg;
11235 struct nlattr *attr;
11236 void *hdr;
11237
58050fce 11238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11239 if (!msg)
11240 return;
11241
11242 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11243 if (!hdr) {
11244 nlmsg_free(msg);
11245 return;
11246 }
11247
9360ffd1
DM		 11248 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11249 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11250 goto nla_put_failure;
c9df56b4
JM		 11251
11252 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11253 if (!attr)
11254 goto nla_put_failure;
11255
9360ffd1
DM		 11256 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11257 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11258 (preauth &&
11259 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11260 goto nla_put_failure;
c9df56b4
JM		 11261
11262 nla_nest_end(msg, attr);
11263
3b7b72ee 11264 genlmsg_end(msg, hdr);
c9df56b4 11265
68eb5503 11266 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11267 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11268 return;
11269
11270 nla_put_failure:
11271 genlmsg_cancel(msg, hdr);
11272 nlmsg_free(msg);
11273}
11274
947add36
JB		 11275void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11276 const u8 *bssid, bool preauth, gfp_t gfp)
11277{
11278 struct wireless_dev *wdev = dev->ieee80211_ptr;
11279 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11280 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11281
11282 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11283 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11284}
11285EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11286
11287static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11288 struct net_device *netdev,
11289 struct cfg80211_chan_def *chandef,
11290 gfp_t gfp)
5314526b
TP		 11291{
11292 struct sk_buff *msg;
11293 void *hdr;
11294
58050fce 11295 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11296 if (!msg)
11297 return;
11298
11299 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11300 if (!hdr) {
11301 nlmsg_free(msg);
11302 return;
11303 }
11304
683b6d3b
JB		 11305 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11306 goto nla_put_failure;
11307
11308 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11309 goto nla_put_failure;
5314526b
TP		 11310
11311 genlmsg_end(msg, hdr);
11312
68eb5503 11313 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11314 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11315 return;
11316
11317 nla_put_failure:
11318 genlmsg_cancel(msg, hdr);
11319 nlmsg_free(msg);
11320}
11321
947add36
JB		 11322void cfg80211_ch_switch_notify(struct net_device *dev,
11323 struct cfg80211_chan_def *chandef)
84f10708 11324{
947add36
JB		 11325 struct wireless_dev *wdev = dev->ieee80211_ptr;
11326 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11328
e487eaeb 11329 ASSERT_WDEV_LOCK(wdev);
947add36 11330
e487eaeb 11331 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11332
11333 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11334 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11335 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11336 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11337 return;
947add36 11338
9e0e2961 11339 wdev->chandef = *chandef;
96f55f12 11340 wdev->preset_chandef = *chandef;
947add36 11341 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11342}
11343EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11344
11345void cfg80211_cqm_txe_notify(struct net_device *dev,
11346 const u8 *peer, u32 num_packets,
11347 u32 rate, u32 intvl, gfp_t gfp)
11348{
11349 struct wireless_dev *wdev = dev->ieee80211_ptr;
11350 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11351 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11352 struct sk_buff *msg;
11353 struct nlattr *pinfoattr;
11354 void *hdr;
11355
11356 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11357 if (!msg)
11358 return;
11359
11360 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11361 if (!hdr) {
11362 nlmsg_free(msg);
11363 return;
11364 }
11365
11366 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11367 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11369 goto nla_put_failure;
11370
11371 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11372 if (!pinfoattr)
11373 goto nla_put_failure;
11374
11375 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11376 goto nla_put_failure;
11377
11378 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11379 goto nla_put_failure;
11380
11381 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11382 goto nla_put_failure;
11383
11384 nla_nest_end(msg, pinfoattr);
11385
11386 genlmsg_end(msg, hdr);
11387
68eb5503 11388 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11389 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11390 return;
11391
11392 nla_put_failure:
11393 genlmsg_cancel(msg, hdr);
11394 nlmsg_free(msg);
11395}
947add36 11396EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11397
04f39047
SW		 11398void
11399nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11400 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11401 enum nl80211_radar_event event,
11402 struct net_device *netdev, gfp_t gfp)
11403{
11404 struct sk_buff *msg;
11405 void *hdr;
11406
11407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11408 if (!msg)
11409 return;
11410
11411 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11412 if (!hdr) {
11413 nlmsg_free(msg);
11414 return;
11415 }
11416
11417 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11418 goto nla_put_failure;
11419
11420 /* NOP and radar events don't need a netdev parameter */
11421 if (netdev) {
11422 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11423
11424 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11425 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11426 goto nla_put_failure;
11427 }
11428
11429 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11430 goto nla_put_failure;
11431
11432 if (nl80211_send_chandef(msg, chandef))
11433 goto nla_put_failure;
11434
9c90a9f6 11435 genlmsg_end(msg, hdr);
04f39047 11436
68eb5503 11437 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11438 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11439 return;
11440
11441 nla_put_failure:
11442 genlmsg_cancel(msg, hdr);
11443 nlmsg_free(msg);
11444}
11445
947add36
JB		 11446void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11447 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11448{
947add36
JB		 11449 struct wireless_dev *wdev = dev->ieee80211_ptr;
11450 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11451 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11452 struct sk_buff *msg;
11453 struct nlattr *pinfoattr;
11454 void *hdr;
11455
947add36
JB		 11456 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11457
58050fce 11458 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11459 if (!msg)
11460 return;
11461
11462 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11463 if (!hdr) {
11464 nlmsg_free(msg);
11465 return;
11466 }
11467
9360ffd1 11468 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11469 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11470 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11471 goto nla_put_failure;
c063dbf5
JB		 11472
11473 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11474 if (!pinfoattr)
11475 goto nla_put_failure;
11476
9360ffd1
DM		 11477 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11478 goto nla_put_failure;
c063dbf5
JB		 11479
11480 nla_nest_end(msg, pinfoattr);
11481
3b7b72ee 11482 genlmsg_end(msg, hdr);
c063dbf5 11483
68eb5503 11484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11485 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11486 return;
11487
11488 nla_put_failure:
11489 genlmsg_cancel(msg, hdr);
11490 nlmsg_free(msg);
11491}
947add36 11492EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11493
7f6cf311
JB		 11494void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11495 u64 cookie, bool acked, gfp_t gfp)
11496{
11497 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11498 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11499 struct sk_buff *msg;
11500 void *hdr;
7f6cf311 11501
4ee3e063
BL		 11502 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11503
58050fce 11504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11505
7f6cf311
JB		 11506 if (!msg)
11507 return;
11508
11509 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11510 if (!hdr) {
11511 nlmsg_free(msg);
11512 return;
11513 }
11514
9360ffd1
DM		 11515 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11516 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11517 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11518 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11519 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11520 goto nla_put_failure;
7f6cf311 11521
9c90a9f6 11522 genlmsg_end(msg, hdr);
7f6cf311 11523
68eb5503 11524 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11525 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11526 return;
11527
11528 nla_put_failure:
11529 genlmsg_cancel(msg, hdr);
11530 nlmsg_free(msg);
11531}
11532EXPORT_SYMBOL(cfg80211_probe_status);
11533
5e760230
JB		 11534void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11535 const u8 *frame, size_t len,
37c73b5f 11536 int freq, int sig_dbm)
5e760230 11537{
f26cbf40 11538 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11539 struct sk_buff *msg;
11540 void *hdr;
37c73b5f 11541 struct cfg80211_beacon_registration *reg;
5e760230 11542
4ee3e063
BL		 11543 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11544
37c73b5f
BG		 11545 spin_lock_bh(&rdev->beacon_registrations_lock);
11546 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11547 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11548 if (!msg) {
11549 spin_unlock_bh(&rdev->beacon_registrations_lock);
11550 return;
11551 }
5e760230 11552
37c73b5f
BG		 11553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11554 if (!hdr)
11555 goto nla_put_failure;
5e760230 11556
37c73b5f
BG		 11557 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11558 (freq &&
11559 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11560 (sig_dbm &&
11561 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11562 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11563 goto nla_put_failure;
5e760230 11564
37c73b5f 11565 genlmsg_end(msg, hdr);
5e760230 11566
37c73b5f
BG		 11567 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11568 }
11569 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11570 return;
11571
11572 nla_put_failure:
37c73b5f
BG		 11573 spin_unlock_bh(&rdev->beacon_registrations_lock);
11574 if (hdr)
11575 genlmsg_cancel(msg, hdr);
5e760230
JB		 11576 nlmsg_free(msg);
11577}
11578EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11579
cd8f7cb4
JB		 11580#ifdef CONFIG_PM
11581void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11582 struct cfg80211_wowlan_wakeup *wakeup,
11583 gfp_t gfp)
11584{
f26cbf40 11585 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11586 struct sk_buff *msg;
11587 void *hdr;
9c90a9f6 11588 int size = 200;
cd8f7cb4
JB		 11589
11590 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11591
11592 if (wakeup)
11593 size += wakeup->packet_present_len;
11594
11595 msg = nlmsg_new(size, gfp);
11596 if (!msg)
11597 return;
11598
11599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11600 if (!hdr)
11601 goto free_msg;
11602
11603 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11604 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11605 goto free_msg;
11606
11607 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11608 wdev->netdev->ifindex))
11609 goto free_msg;
11610
11611 if (wakeup) {
11612 struct nlattr *reasons;
11613
11614 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11615 if (!reasons)
11616 goto free_msg;
cd8f7cb4
JB		 11617
11618 if (wakeup->disconnect &&
11619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11620 goto free_msg;
11621 if (wakeup->magic_pkt &&
11622 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11623 goto free_msg;
11624 if (wakeup->gtk_rekey_failure &&
11625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11626 goto free_msg;
11627 if (wakeup->eap_identity_req &&
11628 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11629 goto free_msg;
11630 if (wakeup->four_way_handshake &&
11631 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11632 goto free_msg;
11633 if (wakeup->rfkill_release &&
11634 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11635 goto free_msg;
11636
11637 if (wakeup->pattern_idx >= 0 &&
11638 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11639 wakeup->pattern_idx))
11640 goto free_msg;
11641
ae917c9f
JB		 11642 if (wakeup->tcp_match &&
11643 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11644 goto free_msg;
2a0e047e 11645
ae917c9f
JB		 11646 if (wakeup->tcp_connlost &&
11647 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11648 goto free_msg;
2a0e047e 11649
ae917c9f
JB		 11650 if (wakeup->tcp_nomoretokens &&
11651 nla_put_flag(msg,
11652 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11653 goto free_msg;
2a0e047e 11654
cd8f7cb4
JB		 11655 if (wakeup->packet) {
11656 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11657 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11658
11659 if (!wakeup->packet_80211) {
11660 pkt_attr =
11661 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11662 len_attr =
11663 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11664 }
11665
11666 if (wakeup->packet_len &&
11667 nla_put_u32(msg, len_attr, wakeup->packet_len))
11668 goto free_msg;
11669
11670 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11671 wakeup->packet))
11672 goto free_msg;
11673 }
11674
11675 nla_nest_end(msg, reasons);
11676 }
11677
9c90a9f6 11678 genlmsg_end(msg, hdr);
cd8f7cb4 11679
68eb5503 11680 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11681 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11682 return;
11683
11684 free_msg:
11685 nlmsg_free(msg);
11686}
11687EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11688#endif
11689
3475b094
JM		 11690void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11691 enum nl80211_tdls_operation oper,
11692 u16 reason_code, gfp_t gfp)
11693{
11694 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11695 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11696 struct sk_buff *msg;
11697 void *hdr;
3475b094
JM		 11698
11699 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11700 reason_code);
11701
11702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11703 if (!msg)
11704 return;
11705
11706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11707 if (!hdr) {
11708 nlmsg_free(msg);
11709 return;
11710 }
11711
11712 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11713 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11714 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11715 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11716 (reason_code > 0 &&
11717 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11718 goto nla_put_failure;
11719
9c90a9f6 11720 genlmsg_end(msg, hdr);
3475b094 11721
68eb5503 11722 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11723 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11724 return;
11725
11726 nla_put_failure:
11727 genlmsg_cancel(msg, hdr);
11728 nlmsg_free(msg);
11729}
11730EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11731
026331c4
JM		 11732static int nl80211_netlink_notify(struct notifier_block * nb,
11733 unsigned long state,
11734 void *_notify)
11735{
11736 struct netlink_notify *notify = _notify;
11737 struct cfg80211_registered_device *rdev;
11738 struct wireless_dev *wdev;
37c73b5f 11739 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11740
11741 if (state != NETLINK_URELEASE)
11742 return NOTIFY_DONE;
11743
11744 rcu_read_lock();
11745
5e760230 11746 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11747 bool schedule_destroy_work = false;
11748
11749 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11750 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11751
78f22b6a
JB		 11752 if (wdev->owner_nlportid == notify->portid)
11753 schedule_destroy_work = true;
11754 }
11755
37c73b5f
BG		 11756 spin_lock_bh(&rdev->beacon_registrations_lock);
11757 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11758 list) {
11759 if (reg->nlportid == notify->portid) {
11760 list_del(&reg->list);
11761 kfree(reg);
11762 break;
11763 }
11764 }
11765 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11766
11767 if (schedule_destroy_work) {
11768 struct cfg80211_iface_destroy *destroy;
11769
11770 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11771 if (destroy) {
11772 destroy->nlportid = notify->portid;
11773 spin_lock(&rdev->destroy_list_lock);
11774 list_add(&destroy->list, &rdev->destroy_list);
11775 spin_unlock(&rdev->destroy_list_lock);
11776 schedule_work(&rdev->destroy_work);
11777 }
11778 }
5e760230 11779 }
026331c4
JM		 11780
11781 rcu_read_unlock();
11782
6784c7db 11783 return NOTIFY_OK;
026331c4
JM		 11784}
11785
11786static struct notifier_block nl80211_netlink_notifier = {
11787 .notifier_call = nl80211_netlink_notify,
11788};
11789
355199e0
JM		 11790void cfg80211_ft_event(struct net_device *netdev,
11791 struct cfg80211_ft_event_params *ft_event)
11792{
11793 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11794 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11795 struct sk_buff *msg;
11796 void *hdr;
355199e0
JM		 11797
11798 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11799
11800 if (!ft_event->target_ap)
11801 return;
11802
11803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11804 if (!msg)
11805 return;
11806
11807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11808 if (!hdr)
11809 goto out;
355199e0 11810
ae917c9f
JB		 11811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11812 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11813 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11814 goto out;
355199e0 11815
ae917c9f
JB		 11816 if (ft_event->ies &&
11817 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11818 goto out;
11819 if (ft_event->ric_ies &&
11820 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11821 ft_event->ric_ies))
11822 goto out;
355199e0 11823
9c90a9f6 11824 genlmsg_end(msg, hdr);
355199e0 11825
68eb5503 11826 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11827 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11828 return;
11829 out:
11830 nlmsg_free(msg);
355199e0
JM		 11831}
11832EXPORT_SYMBOL(cfg80211_ft_event);
11833
5de17984
AS		 11834void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11835{
11836 struct cfg80211_registered_device *rdev;
11837 struct sk_buff *msg;
11838 void *hdr;
11839 u32 nlportid;
11840
f26cbf40 11841 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11842 if (!rdev->crit_proto_nlportid)
11843 return;
11844
11845 nlportid = rdev->crit_proto_nlportid;
11846 rdev->crit_proto_nlportid = 0;
11847
11848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11849 if (!msg)
11850 return;
11851
11852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11853 if (!hdr)
11854 goto nla_put_failure;
11855
11856 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11857 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11858 goto nla_put_failure;
11859
11860 genlmsg_end(msg, hdr);
11861
11862 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11863 return;
11864
11865 nla_put_failure:
11866 if (hdr)
11867 genlmsg_cancel(msg, hdr);
11868 nlmsg_free(msg);
11869
11870}
11871EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11872
348baf0e
JB		 11873void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11874{
11875 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11876 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11877 struct sk_buff *msg;
11878 void *hdr;
11879
11880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11881 if (!msg)
11882 return;
11883
11884 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11885 if (!hdr)
11886 goto out;
11887
11888 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11889 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11890 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11891 goto out;
11892
11893 genlmsg_end(msg, hdr);
11894
11895 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11896 NL80211_MCGRP_MLME, GFP_KERNEL);
11897 return;
11898 out:
11899 nlmsg_free(msg);
11900}
11901
55682965
JB		 11902/* initialisation/exit functions */
11903
11904int nl80211_init(void)
11905{
0d63cbb5 11906 int err;
55682965 11907
2a94fe48
JB		 11908 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11909 nl80211_mcgrps);
55682965
JB		 11910 if (err)
11911 return err;
11912
026331c4
JM		 11913 err = netlink_register_notifier(&nl80211_netlink_notifier);
11914 if (err)
11915 goto err_out;
11916
55682965
JB		 11917 return 0;
11918 err_out:
11919 genl_unregister_family(&nl80211_fam);
11920 return err;
11921}
11922
11923void nl80211_exit(void)
11924{
026331c4 11925 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11926 genl_unregister_family(&nl80211_fam);
11927}
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