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cfg80211: Support multiple CSA counters
[deliverable/linux.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,
3713b4e3 1229 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1230 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1231{
1232 void *hdr;
1233 struct nlattr *nl_bands, *nl_band;
1234 struct nlattr *nl_freqs, *nl_freq;
1235 struct nlattr *nl_cmds;
1236 enum ieee80211_band band;
1237 struct ieee80211_channel *chan;
1238 int i;
1239 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1240 rdev->wiphy.mgmt_stypes;
fe1abafd 1241 u32 features;
ee688b00 1242
3713b4e3
JB		 1243 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1244 if (!hdr)
1245 return -ENOBUFS;
ee688b00 1246
86e8cf98
JB		 1247 if (WARN_ON(!state))
1248 return -EINVAL;
ee688b00 1249
1b8ec87a 1250 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1251 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1252 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1253 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1254 cfg80211_rdev_list_generation))
8fdc621d
JB		 1255 goto nla_put_failure;
1256
86e8cf98 1257 switch (state->split_start) {
3713b4e3
JB		 1258 case 0:
1259 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1260 rdev->wiphy.retry_short) ||
3713b4e3 1261 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1262 rdev->wiphy.retry_long) ||
3713b4e3 1263 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1264 rdev->wiphy.frag_threshold) ||
3713b4e3 1265 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1266 rdev->wiphy.rts_threshold) ||
3713b4e3 1267 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1268 rdev->wiphy.coverage_class) ||
3713b4e3 1269 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1270 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1271 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1272 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1273 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1274 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1275 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1276 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1277 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1278 rdev->wiphy.max_match_sets))
9360ffd1 1279 goto nla_put_failure;
3713b4e3 1280
1b8ec87a 1281 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1282 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1283 goto nla_put_failure;
1b8ec87a 1284 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1285 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1286 goto nla_put_failure;
1b8ec87a 1287 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1288 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1289 goto nla_put_failure;
1b8ec87a 1290 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1291 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1292 goto nla_put_failure;
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1294 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1295 goto nla_put_failure;
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1297 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1298 goto nla_put_failure;
86e8cf98
JB		 1299 state->split_start++;
1300 if (state->split)
3713b4e3
JB		 1301 break;
1302 case 1:
1303 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1304 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1305 rdev->wiphy.cipher_suites))
3713b4e3 1306 goto nla_put_failure;
4745fc09 1307
3713b4e3 1308 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1309 rdev->wiphy.max_num_pmkids))
3713b4e3 1310 goto nla_put_failure;
b23aa676 1311
1b8ec87a 1312 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1313 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1314 goto nla_put_failure;
b23aa676 1315
3713b4e3 1316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1317 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1319 rdev->wiphy.available_antennas_rx))
9360ffd1 1320 goto nla_put_failure;
b23aa676 1321
1b8ec87a 1322 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1323 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1324 rdev->wiphy.probe_resp_offload))
3713b4e3 1325 goto nla_put_failure;
8fdc621d 1326
1b8ec87a
ZG		 1327 if ((rdev->wiphy.available_antennas_tx ||
1328 rdev->wiphy.available_antennas_rx) &&
1329 rdev->ops->get_antenna) {
3713b4e3
JB		 1330 u32 tx_ant = 0, rx_ant = 0;
1331 int res;
1b8ec87a 1332 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1333 if (!res) {
1334 if (nla_put_u32(msg,
1335 NL80211_ATTR_WIPHY_ANTENNA_TX,
1336 tx_ant) ||
1337 nla_put_u32(msg,
1338 NL80211_ATTR_WIPHY_ANTENNA_RX,
1339 rx_ant))
1340 goto nla_put_failure;
1341 }
1342 }
a293911d 1343
86e8cf98
JB		 1344 state->split_start++;
1345 if (state->split)
3713b4e3
JB		 1346 break;
1347 case 2:
1348 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1349 rdev->wiphy.interface_modes))
3713b4e3 1350 goto nla_put_failure;
86e8cf98
JB		 1351 state->split_start++;
1352 if (state->split)
3713b4e3
JB		 1353 break;
1354 case 3:
1355 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1356 if (!nl_bands)
1357 goto nla_put_failure;
f7ca38df 1358
86e8cf98
JB		 1359 for (band = state->band_start;
1360 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1361 struct ieee80211_supported_band *sband;
2e161f78 1362
1b8ec87a 1363 sband = rdev->wiphy.bands[band];
2e161f78 1364
3713b4e3
JB		 1365 if (!sband)
1366 continue;
1367
1368 nl_band = nla_nest_start(msg, band);
1369 if (!nl_band)
2e161f78 1370 goto nla_put_failure;
3713b4e3 1371
86e8cf98 1372 switch (state->chan_start) {
3713b4e3
JB		 1373 case 0:
1374 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1375 goto nla_put_failure;
86e8cf98
JB		 1376 state->chan_start++;
1377 if (state->split)
3713b4e3
JB		 1378 break;
1379 default:
1380 /* add frequencies */
1381 nl_freqs = nla_nest_start(
1382 msg, NL80211_BAND_ATTR_FREQS);
1383 if (!nl_freqs)
1384 goto nla_put_failure;
1385
86e8cf98 1386 for (i = state->chan_start - 1;
3713b4e3
JB		 1387 i < sband->n_channels;
1388 i++) {
1389 nl_freq = nla_nest_start(msg, i);
1390 if (!nl_freq)
1391 goto nla_put_failure;
1392
1393 chan = &sband->channels[i];
1394
86e8cf98
JB		 1395 if (nl80211_msg_put_channel(
1396 msg, chan,
1397 state->split))
3713b4e3
JB		 1398 goto nla_put_failure;
1399
1400 nla_nest_end(msg, nl_freq);
86e8cf98 1401 if (state->split)
3713b4e3
JB		 1402 break;
1403 }
1404 if (i < sband->n_channels)
86e8cf98 1405 state->chan_start = i + 2;
3713b4e3 1406 else
86e8cf98 1407 state->chan_start = 0;
3713b4e3
JB		 1408 nla_nest_end(msg, nl_freqs);
1409 }
1410
1411 nla_nest_end(msg, nl_band);
1412
86e8cf98 1413 if (state->split) {
3713b4e3 1414 /* start again here */
86e8cf98 1415 if (state->chan_start)
3713b4e3
JB		 1416 band--;
1417 break;
2e161f78 1418 }
2e161f78 1419 }
3713b4e3 1420 nla_nest_end(msg, nl_bands);
2e161f78 1421
3713b4e3 1422 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1423 state->band_start = band + 1;
3713b4e3 1424 else
86e8cf98 1425 state->band_start = 0;
74b70a4e 1426
3713b4e3 1427 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1428 if (state->band_start == 0 && state->chan_start == 0)
1429 state->split_start++;
1430 if (state->split)
3713b4e3
JB		 1431 break;
1432 case 4:
1433 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1434 if (!nl_cmds)
2e161f78
JB		 1435 goto nla_put_failure;
1436
3713b4e3
JB		 1437 i = 0;
1438#define CMD(op, n) \
1439 do { \
1b8ec87a 1440 if (rdev->ops->op) { \
3713b4e3
JB		 1441 i++; \
1442 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1443 goto nla_put_failure; \
1444 } \
1445 } while (0)
1446
1447 CMD(add_virtual_intf, NEW_INTERFACE);
1448 CMD(change_virtual_intf, SET_INTERFACE);
1449 CMD(add_key, NEW_KEY);
1450 CMD(start_ap, START_AP);
1451 CMD(add_station, NEW_STATION);
1452 CMD(add_mpath, NEW_MPATH);
1453 CMD(update_mesh_config, SET_MESH_CONFIG);
1454 CMD(change_bss, SET_BSS);
1455 CMD(auth, AUTHENTICATE);
1456 CMD(assoc, ASSOCIATE);
1457 CMD(deauth, DEAUTHENTICATE);
1458 CMD(disassoc, DISASSOCIATE);
1459 CMD(join_ibss, JOIN_IBSS);
1460 CMD(join_mesh, JOIN_MESH);
1461 CMD(set_pmksa, SET_PMKSA);
1462 CMD(del_pmksa, DEL_PMKSA);
1463 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1464 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1465 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1466 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1467 CMD(mgmt_tx, FRAME);
1468 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1469 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1470 i++;
1471 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1472 goto nla_put_failure;
2e161f78 1473 }
1b8ec87a
ZG		 1474 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1475 rdev->ops->join_mesh) {
3713b4e3
JB		 1476 i++;
1477 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1478 goto nla_put_failure;
1479 }
1480 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1481 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1482 CMD(tdls_mgmt, TDLS_MGMT);
1483 CMD(tdls_oper, TDLS_OPER);
1484 }
1b8ec87a 1485 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1486 CMD(sched_scan_start, START_SCHED_SCAN);
1487 CMD(probe_client, PROBE_CLIENT);
1488 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1489 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1490 i++;
1491 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1492 goto nla_put_failure;
1493 }
1494 CMD(start_p2p_device, START_P2P_DEVICE);
1495 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1496 if (state->split) {
5de17984
AS		 1497 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1498 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1499 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1500 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1501 }
fa9ffc74 1502 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1503
3713b4e3
JB		 1504#ifdef CONFIG_NL80211_TESTMODE
1505 CMD(testmode_cmd, TESTMODE);
1506#endif
ff1b6e69 1507
3713b4e3 1508#undef CMD
ff1b6e69 1509
1b8ec87a 1510 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1511 i++;
1512 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1513 goto nla_put_failure;
ff1b6e69
JB		 1514 }
1515
1b8ec87a 1516 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1517 i++;
1518 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1519 goto nla_put_failure;
1520 }
1521
1522 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1523 state->split_start++;
1524 if (state->split)
3713b4e3
JB		 1525 break;
1526 case 5:
1b8ec87a
ZG		 1527 if (rdev->ops->remain_on_channel &&
1528 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1529 nla_put_u32(msg,
1530 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1531 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1532 goto nla_put_failure;
1533
1b8ec87a 1534 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1535 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1536 goto nla_put_failure;
1537
1538 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1539 goto nla_put_failure;
86e8cf98
JB		 1540 state->split_start++;
1541 if (state->split)
3713b4e3
JB		 1542 break;
1543 case 6:
1544#ifdef CONFIG_PM
1b8ec87a 1545 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1546 goto nla_put_failure;
86e8cf98
JB		 1547 state->split_start++;
1548 if (state->split)
3713b4e3
JB		 1549 break;
1550#else
86e8cf98 1551 state->split_start++;
dfb89c56 1552#endif
3713b4e3
JB		 1553 case 7:
1554 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1555 rdev->wiphy.software_iftypes))
3713b4e3 1556 goto nla_put_failure;
ff1b6e69 1557
1b8ec87a 1558 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1559 state->split))
3713b4e3 1560 goto nla_put_failure;
7527a782 1561
86e8cf98
JB		 1562 state->split_start++;
1563 if (state->split)
3713b4e3
JB		 1564 break;
1565 case 8:
1b8ec87a 1566 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1567 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1568 rdev->wiphy.ap_sme_capa))
3713b4e3 1569 goto nla_put_failure;
7527a782 1570
1b8ec87a 1571 features = rdev->wiphy.features;
fe1abafd
JB		 1572 /*
1573 * We can only add the per-channel limit information if the
1574 * dump is split, otherwise it makes it too big. Therefore
1575 * only advertise it in that case.
1576 */
86e8cf98 1577 if (state->split)
fe1abafd
JB		 1578 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1579 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1580 goto nla_put_failure;
562a7480 1581
1b8ec87a 1582 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1583 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1584 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1585 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1586 goto nla_put_failure;
1f074bd8 1587
1b8ec87a
ZG		 1588 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1589 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1590 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1591 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1592 goto nla_put_failure;
7e7c8926 1593
3713b4e3
JB		 1594 /*
1595 * Any information below this point is only available to
1596 * applications that can deal with it being split. This
1597 * helps ensure that newly added capabilities don't break
1598 * older tools by overrunning their buffers.
1599 *
1600 * We still increment split_start so that in the split
1601 * case we'll continue with more data in the next round,
1602 * but break unconditionally so unsplit data stops here.
1603 */
86e8cf98 1604 state->split_start++;
3713b4e3
JB		 1605 break;
1606 case 9:
1b8ec87a 1607 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1608 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1609 rdev->wiphy.extended_capabilities_len,
1610 rdev->wiphy.extended_capabilities) ||
fe1abafd 1611 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1612 rdev->wiphy.extended_capabilities_len,
1613 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1614 goto nla_put_failure;
a50df0c4 1615
1b8ec87a 1616 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1617 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1618 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1619 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1620 goto nla_put_failure;
1621
be29b99a
AK		 1622 state->split_start++;
1623 break;
1624 case 10:
1b8ec87a 1625 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1626 goto nla_put_failure;
1627
1b8ec87a 1628 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1629 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1630 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1631 goto nla_put_failure;
b43504cf 1632
1b8ec87a 1633 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1634 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1635 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1636 goto nla_put_failure;
1637
ad7e718c
JB		 1638 state->split_start++;
1639 break;
1640 case 11:
1b8ec87a 1641 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1642 const struct nl80211_vendor_cmd_info *info;
1643 struct nlattr *nested;
1644
1645 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1646 if (!nested)
1647 goto nla_put_failure;
1648
1b8ec87a
ZG		 1649 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1650 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1651 if (nla_put(msg, i + 1, sizeof(*info), info))
1652 goto nla_put_failure;
1653 }
1654 nla_nest_end(msg, nested);
1655 }
1656
1b8ec87a 1657 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1658 const struct nl80211_vendor_cmd_info *info;
1659 struct nlattr *nested;
ad7e718c 1660
567ffc35
JB		 1661 nested = nla_nest_start(msg,
1662 NL80211_ATTR_VENDOR_EVENTS);
1663 if (!nested)
ad7e718c 1664 goto nla_put_failure;
567ffc35 1665
1b8ec87a
ZG		 1666 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1667 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1668 if (nla_put(msg, i + 1, sizeof(*info), info))
1669 goto nla_put_failure;
1670 }
1671 nla_nest_end(msg, nested);
1672 }
9a774c78
AO		 1673 state->split_start++;
1674 break;
1675 case 12:
1676 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1677 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1678 rdev->wiphy.max_num_csa_counters))
1679 goto nla_put_failure;
01e0daa4 1680
3713b4e3 1681 /* done */
86e8cf98 1682 state->split_start = 0;
3713b4e3
JB		 1683 break;
1684 }
55682965
JB		 1685 return genlmsg_end(msg, hdr);
1686
1687 nla_put_failure:
bc3ed28c
TG		 1688 genlmsg_cancel(msg, hdr);
1689 return -EMSGSIZE;
55682965
JB		 1690}
1691
86e8cf98
JB		 1692static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1693 struct netlink_callback *cb,
1694 struct nl80211_dump_wiphy_state *state)
1695{
1696 struct nlattr **tb = nl80211_fam.attrbuf;
1697 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1698 tb, nl80211_fam.maxattr, nl80211_policy);
1699 /* ignore parse errors for backward compatibility */
1700 if (ret)
1701 return 0;
1702
1703 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1704 if (tb[NL80211_ATTR_WIPHY])
1705 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1706 if (tb[NL80211_ATTR_WDEV])
1707 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1708 if (tb[NL80211_ATTR_IFINDEX]) {
1709 struct net_device *netdev;
1710 struct cfg80211_registered_device *rdev;
1711 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1712
7f2b8562 1713 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1714 if (!netdev)
1715 return -ENODEV;
1716 if (netdev->ieee80211_ptr) {
f26cbf40 1717 rdev = wiphy_to_rdev(
86e8cf98
JB		 1718 netdev->ieee80211_ptr->wiphy);
1719 state->filter_wiphy = rdev->wiphy_idx;
1720 }
86e8cf98
JB		 1721 }
1722
1723 return 0;
1724}
1725
55682965
JB		 1726static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1727{
645e77de 1728 int idx = 0, ret;
86e8cf98 1729 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1730 struct cfg80211_registered_device *rdev;
3a5a423b 1731
5fe231e8 1732 rtnl_lock();
86e8cf98
JB		 1733 if (!state) {
1734 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1735 if (!state) {
1736 rtnl_unlock();
86e8cf98 1737 return -ENOMEM;
3713b4e3 1738 }
86e8cf98
JB		 1739 state->filter_wiphy = -1;
1740 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1741 if (ret) {
1742 kfree(state);
1743 rtnl_unlock();
1744 return ret;
3713b4e3 1745 }
86e8cf98 1746 cb->args[0] = (long)state;
3713b4e3
JB		 1747 }
1748
1b8ec87a
ZG		 1749 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1750 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1751 continue;
86e8cf98 1752 if (++idx <= state->start)
55682965 1753 continue;
86e8cf98 1754 if (state->filter_wiphy != -1 &&
1b8ec87a 1755 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1756 continue;
1757 /* attempt to fit multiple wiphy data chunks into the skb */
1758 do {
1b8ec87a 1759 ret = nl80211_send_wiphy(rdev, skb,
3713b4e3
JB		 1760 NETLINK_CB(cb->skb).portid,
1761 cb->nlh->nlmsg_seq,
86e8cf98 1762 NLM_F_MULTI, state);
3713b4e3
JB		 1763 if (ret < 0) {
1764 /*
1765 * If sending the wiphy data didn't fit (ENOBUFS
1766 * or EMSGSIZE returned), this SKB is still
1767 * empty (so it's not too big because another
1768 * wiphy dataset is already in the skb) and
1769 * we've not tried to adjust the dump allocation
1770 * yet ... then adjust the alloc size to be
1771 * bigger, and return 1 but with the empty skb.
1772 * This results in an empty message being RX'ed
1773 * in userspace, but that is ignored.
1774 *
1775 * We can then retry with the larger buffer.
1776 */
1777 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1778 !skb->len && !state->split &&
3713b4e3
JB		 1779 cb->min_dump_alloc < 4096) {
1780 cb->min_dump_alloc = 4096;
f12cb289 1781 state->split_start = 0;
d98cae64 1782 rtnl_unlock();
3713b4e3
JB		 1783 return 1;
1784 }
1785 idx--;
1786 break;
645e77de 1787 }
86e8cf98 1788 } while (state->split_start > 0);
3713b4e3 1789 break;
55682965 1790 }
5fe231e8 1791 rtnl_unlock();
55682965 1792
86e8cf98 1793 state->start = idx;
55682965
JB		 1794
1795 return skb->len;
1796}
1797
86e8cf98
JB		 1798static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1799{
1800 kfree((void *)cb->args[0]);
1801 return 0;
1802}
1803
55682965
JB		 1804static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1805{
1806 struct sk_buff *msg;
1b8ec87a 1807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1808 struct nl80211_dump_wiphy_state state = {};
55682965 1809
645e77de 1810 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1811 if (!msg)
4c476991 1812 return -ENOMEM;
55682965 1813
1b8ec87a 1814 if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1815 &state) < 0) {
4c476991
JB		 1816 nlmsg_free(msg);
1817 return -ENOBUFS;
1818 }
55682965 1819
134e6375 1820 return genlmsg_reply(msg, info);
55682965
JB		 1821}
1822
31888487
JM		 1823static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1824 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1825 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1826 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1827 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1828 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1829};
1830
1831static int parse_txq_params(struct nlattr *tb[],
1832 struct ieee80211_txq_params *txq_params)
1833{
a3304b0a 1834 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1835 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1836 !tb[NL80211_TXQ_ATTR_AIFS])
1837 return -EINVAL;
1838
a3304b0a 1839 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1840 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1841 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1842 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1843 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1844
a3304b0a
JB		 1845 if (txq_params->ac >= NL80211_NUM_ACS)
1846 return -EINVAL;
1847
31888487
JM		 1848 return 0;
1849}
1850
f444de05
JB		 1851static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1852{
1853 /*
cc1d2806
JB		 1854 * You can only set the channel explicitly for WDS interfaces,
1855 * all others have their channel managed via their respective
1856 * "establish a connection" command (connect, join, ...)
1857 *
1858 * For AP/GO and mesh mode, the channel can be set with the
1859 * channel userspace API, but is only stored and passed to the
1860 * low-level driver when the AP starts or the mesh is joined.
1861 * This is for backward compatibility, userspace can also give
1862 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1863 *
1864 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1865 * whatever else is going on, so they have their own special
1866 * operation to set the monitor channel if possible.
f444de05
JB		 1867 */
1868 return !wdev ||
1869 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1870 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1871 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1872 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1873}
1874
683b6d3b
JB		 1875static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1876 struct genl_info *info,
1877 struct cfg80211_chan_def *chandef)
1878{
dbeca2ea 1879 u32 control_freq;
683b6d3b
JB		 1880
1881 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1882 return -EINVAL;
1883
1884 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1885
1886 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1887 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1888 chandef->center_freq1 = control_freq;
1889 chandef->center_freq2 = 0;
683b6d3b
JB		 1890
1891 /* Primary channel not allowed */
1892 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1893 return -EINVAL;
1894
3d9d1d66
JB		 1895 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1896 enum nl80211_channel_type chantype;
1897
1898 chantype = nla_get_u32(
1899 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1900
1901 switch (chantype) {
1902 case NL80211_CHAN_NO_HT:
1903 case NL80211_CHAN_HT20:
1904 case NL80211_CHAN_HT40PLUS:
1905 case NL80211_CHAN_HT40MINUS:
1906 cfg80211_chandef_create(chandef, chandef->chan,
1907 chantype);
1908 break;
1909 default:
1910 return -EINVAL;
1911 }
1912 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1913 chandef->width =
1914 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1915 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1916 chandef->center_freq1 =
1917 nla_get_u32(
1918 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1919 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1920 chandef->center_freq2 =
1921 nla_get_u32(
1922 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1923 }
1924
9f5e8f6e 1925 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1926 return -EINVAL;
1927
9f5e8f6e
JB		 1928 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1929 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1930 return -EINVAL;
1931
2f301ab2
SW		 1932 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1933 chandef->width == NL80211_CHAN_WIDTH_10) &&
1934 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1935 return -EINVAL;
1936
683b6d3b
JB		 1937 return 0;
1938}
1939
f444de05 1940static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1941 struct net_device *dev,
f444de05
JB		 1942 struct genl_info *info)
1943{
683b6d3b 1944 struct cfg80211_chan_def chandef;
f444de05 1945 int result;
e8c9bd5b 1946 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1947 struct wireless_dev *wdev = NULL;
e8c9bd5b 1948
e16821bc
JM		 1949 if (dev)
1950 wdev = dev->ieee80211_ptr;
f444de05
JB		 1951 if (!nl80211_can_set_dev_channel(wdev))
1952 return -EOPNOTSUPP;
e16821bc
JM		 1953 if (wdev)
1954 iftype = wdev->iftype;
f444de05 1955
683b6d3b
JB		 1956 result = nl80211_parse_chandef(rdev, info, &chandef);
1957 if (result)
1958 return result;
f444de05 1959
e8c9bd5b 1960 switch (iftype) {
aa430da4
JB		 1961 case NL80211_IFTYPE_AP:
1962 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1963 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1964 result = -EINVAL;
1965 break;
1966 }
e16821bc
JM		 1967 if (wdev->beacon_interval) {
1968 if (!dev || !rdev->ops->set_ap_chanwidth ||
1969 !(rdev->wiphy.features &
1970 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1971 result = -EBUSY;
1972 break;
1973 }
1974
1975 /* Only allow dynamic channel width changes */
1976 if (chandef.chan != wdev->preset_chandef.chan) {
1977 result = -EBUSY;
1978 break;
1979 }
1980 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1981 if (result)
1982 break;
1983 }
683b6d3b 1984 wdev->preset_chandef = chandef;
aa430da4
JB		 1985 result = 0;
1986 break;
cc1d2806 1987 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1988 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1989 break;
e8c9bd5b 1990 case NL80211_IFTYPE_MONITOR:
683b6d3b 1991 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1992 break;
aa430da4 1993 default:
e8c9bd5b 1994 result = -EINVAL;
f444de05 1995 }
f444de05
JB		 1996
1997 return result;
1998}
1999
2000static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2001{
4c476991
JB		 2002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2003 struct net_device *netdev = info->user_ptr[1];
f444de05 2004
e16821bc 2005 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2006}
2007
e8347eba
BJ		 2008static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2009{
43b19952
JB		 2010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2011 struct net_device *dev = info->user_ptr[1];
2012 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2013 const u8 *bssid;
e8347eba
BJ		 2014
2015 if (!info->attrs[NL80211_ATTR_MAC])
2016 return -EINVAL;
2017
43b19952
JB		 2018 if (netif_running(dev))
2019 return -EBUSY;
e8347eba 2020
43b19952
JB		 2021 if (!rdev->ops->set_wds_peer)
2022 return -EOPNOTSUPP;
e8347eba 2023
43b19952
JB		 2024 if (wdev->iftype != NL80211_IFTYPE_WDS)
2025 return -EOPNOTSUPP;
e8347eba
BJ		 2026
2027 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2028 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2029}
2030
2031
55682965
JB		 2032static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2033{
2034 struct cfg80211_registered_device *rdev;
f444de05
JB		 2035 struct net_device *netdev = NULL;
2036 struct wireless_dev *wdev;
a1e567c8 2037 int result = 0, rem_txq_params = 0;
31888487 2038 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2039 u32 changed;
2040 u8 retry_short = 0, retry_long = 0;
2041 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2042 u8 coverage_class = 0;
55682965 2043
5fe231e8
JB		 2044 ASSERT_RTNL();
2045
f444de05
JB		 2046 /*
2047 * Try to find the wiphy and netdev. Normally this
2048 * function shouldn't need the netdev, but this is
2049 * done for backward compatibility -- previously
2050 * setting the channel was done per wiphy, but now
2051 * it is per netdev. Previous userland like hostapd
2052 * also passed a netdev to set_wiphy, so that it is
2053 * possible to let that go to the right netdev!
2054 */
4bbf4d56 2055
f444de05
JB		 2056 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2057 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2058
7f2b8562 2059 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2060 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2061 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2062 else
f444de05 2063 netdev = NULL;
4bbf4d56
JB		 2064 }
2065
f444de05 2066 if (!netdev) {
878d9ec7
JB		 2067 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2068 info->attrs);
5fe231e8 2069 if (IS_ERR(rdev))
4c476991 2070 return PTR_ERR(rdev);
f444de05
JB		 2071 wdev = NULL;
2072 netdev = NULL;
2073 result = 0;
71fe96bf 2074 } else
f444de05 2075 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2076
2077 /*
2078 * end workaround code, by now the rdev is available
2079 * and locked, and wdev may or may not be NULL.
2080 */
4bbf4d56
JB		 2081
2082 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2083 result = cfg80211_dev_rename(
2084 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2085
4bbf4d56 2086 if (result)
7f2b8562 2087 return result;
31888487
JM		 2088
2089 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2090 struct ieee80211_txq_params txq_params;
2091 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2092
7f2b8562
YX		 2093 if (!rdev->ops->set_txq_params)
2094 return -EOPNOTSUPP;
31888487 2095
7f2b8562
YX		 2096 if (!netdev)
2097 return -EINVAL;
f70f01c2 2098
133a3ff2 2099 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2100 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2101 return -EINVAL;
133a3ff2 2102
7f2b8562
YX		 2103 if (!netif_running(netdev))
2104 return -ENETDOWN;
2b5f8b0b 2105
31888487
JM		 2106 nla_for_each_nested(nl_txq_params,
2107 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2108 rem_txq_params) {
ae811e21
JB		 2109 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2110 nla_data(nl_txq_params),
2111 nla_len(nl_txq_params),
2112 txq_params_policy);
2113 if (result)
2114 return result;
31888487
JM		 2115 result = parse_txq_params(tb, &txq_params);
2116 if (result)
7f2b8562 2117 return result;
31888487 2118
e35e4d28
HG		 2119 result = rdev_set_txq_params(rdev, netdev,
2120 &txq_params);
31888487 2121 if (result)
7f2b8562 2122 return result;
31888487
JM		 2123 }
2124 }
55682965 2125
72bdcf34 2126 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2127 result = __nl80211_set_channel(
2128 rdev,
2129 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2130 info);
72bdcf34 2131 if (result)
7f2b8562 2132 return result;
72bdcf34
JM		 2133 }
2134
98d2ff8b 2135 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2136 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2137 enum nl80211_tx_power_setting type;
2138 int idx, mbm = 0;
2139
c8442118
JB		 2140 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2141 txp_wdev = NULL;
2142
7f2b8562
YX		 2143 if (!rdev->ops->set_tx_power)
2144 return -EOPNOTSUPP;
98d2ff8b
JO		 2145
2146 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2147 type = nla_get_u32(info->attrs[idx]);
2148
2149 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2150 (type != NL80211_TX_POWER_AUTOMATIC))
2151 return -EINVAL;
98d2ff8b
JO		 2152
2153 if (type != NL80211_TX_POWER_AUTOMATIC) {
2154 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2155 mbm = nla_get_u32(info->attrs[idx]);
2156 }
2157
c8442118 2158 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2159 if (result)
7f2b8562 2160 return result;
98d2ff8b
JO		 2161 }
2162
afe0cbf8
BR		 2163 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2164 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2165 u32 tx_ant, rx_ant;
7f531e03
BR		 2166 if ((!rdev->wiphy.available_antennas_tx &&
2167 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2168 !rdev->ops->set_antenna)
2169 return -EOPNOTSUPP;
afe0cbf8
BR		 2170
2171 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2172 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2173
a7ffac95 2174 /* reject antenna configurations which don't match the
7f531e03
BR		 2175 * available antenna masks, except for the "all" mask */
2176 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2177 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2178 return -EINVAL;
a7ffac95 2179
7f531e03
BR		 2180 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2181 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2182
e35e4d28 2183 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2184 if (result)
7f2b8562 2185 return result;
afe0cbf8
BR		 2186 }
2187
b9a5f8ca
JM		 2188 changed = 0;
2189
2190 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2191 retry_short = nla_get_u8(
2192 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2193 if (retry_short == 0)
2194 return -EINVAL;
2195
b9a5f8ca
JM		 2196 changed |= WIPHY_PARAM_RETRY_SHORT;
2197 }
2198
2199 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2200 retry_long = nla_get_u8(
2201 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2202 if (retry_long == 0)
2203 return -EINVAL;
2204
b9a5f8ca
JM		 2205 changed |= WIPHY_PARAM_RETRY_LONG;
2206 }
2207
2208 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2209 frag_threshold = nla_get_u32(
2210 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2211 if (frag_threshold < 256)
2212 return -EINVAL;
2213
b9a5f8ca
JM		 2214 if (frag_threshold != (u32) -1) {
2215 /*
2216 * Fragments (apart from the last one) are required to
2217 * have even length. Make the fragmentation code
2218 * simpler by stripping LSB should someone try to use
2219 * odd threshold value.
2220 */
2221 frag_threshold &= ~0x1;
2222 }
2223 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2224 }
2225
2226 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2227 rts_threshold = nla_get_u32(
2228 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2229 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2230 }
2231
81077e82
LT		 2232 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2233 coverage_class = nla_get_u8(
2234 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2235 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2236 }
2237
b9a5f8ca
JM		 2238 if (changed) {
2239 u8 old_retry_short, old_retry_long;
2240 u32 old_frag_threshold, old_rts_threshold;
81077e82 2241 u8 old_coverage_class;
b9a5f8ca 2242
7f2b8562
YX		 2243 if (!rdev->ops->set_wiphy_params)
2244 return -EOPNOTSUPP;
b9a5f8ca
JM		 2245
2246 old_retry_short = rdev->wiphy.retry_short;
2247 old_retry_long = rdev->wiphy.retry_long;
2248 old_frag_threshold = rdev->wiphy.frag_threshold;
2249 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2250 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2251
2252 if (changed & WIPHY_PARAM_RETRY_SHORT)
2253 rdev->wiphy.retry_short = retry_short;
2254 if (changed & WIPHY_PARAM_RETRY_LONG)
2255 rdev->wiphy.retry_long = retry_long;
2256 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2257 rdev->wiphy.frag_threshold = frag_threshold;
2258 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2259 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2260 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2261 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2262
e35e4d28 2263 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2264 if (result) {
2265 rdev->wiphy.retry_short = old_retry_short;
2266 rdev->wiphy.retry_long = old_retry_long;
2267 rdev->wiphy.frag_threshold = old_frag_threshold;
2268 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2269 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2270 }
2271 }
7f2b8562 2272 return 0;
55682965
JB		 2273}
2274
71bbc994
JB		 2275static inline u64 wdev_id(struct wireless_dev *wdev)
2276{
2277 return (u64)wdev->identifier |
f26cbf40 2278 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2279}
55682965 2280
683b6d3b 2281static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2282 const struct cfg80211_chan_def *chandef)
683b6d3b 2283{
9f5e8f6e 2284 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2285
683b6d3b
JB		 2286 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2287 chandef->chan->center_freq))
2288 return -ENOBUFS;
3d9d1d66
JB		 2289 switch (chandef->width) {
2290 case NL80211_CHAN_WIDTH_20_NOHT:
2291 case NL80211_CHAN_WIDTH_20:
2292 case NL80211_CHAN_WIDTH_40:
2293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2294 cfg80211_get_chandef_type(chandef)))
2295 return -ENOBUFS;
2296 break;
2297 default:
2298 break;
2299 }
2300 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2301 return -ENOBUFS;
2302 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2303 return -ENOBUFS;
2304 if (chandef->center_freq2 &&
2305 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2306 return -ENOBUFS;
2307 return 0;
2308}
2309
15e47304 2310static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2311 struct cfg80211_registered_device *rdev,
72fb2abc 2312 struct wireless_dev *wdev)
55682965 2313{
72fb2abc 2314 struct net_device *dev = wdev->netdev;
55682965
JB		 2315 void *hdr;
2316
15e47304 2317 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2318 if (!hdr)
2319 return -1;
2320
72fb2abc
JB		 2321 if (dev &&
2322 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2323 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2324 goto nla_put_failure;
2325
2326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2327 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2328 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2329 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2330 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2331 rdev->devlist_generation ^
2332 (cfg80211_rdev_list_generation << 2)))
2333 goto nla_put_failure;
f5ea9120 2334
5b7ccaf3 2335 if (rdev->ops->get_channel) {
683b6d3b
JB		 2336 int ret;
2337 struct cfg80211_chan_def chandef;
2338
2339 ret = rdev_get_channel(rdev, wdev, &chandef);
2340 if (ret == 0) {
2341 if (nl80211_send_chandef(msg, &chandef))
2342 goto nla_put_failure;
2343 }
d91df0e3
PF		 2344 }
2345
b84e7a05
AQ		 2346 if (wdev->ssid_len) {
2347 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2348 goto nla_put_failure;
2349 }
2350
55682965
JB		 2351 return genlmsg_end(msg, hdr);
2352
2353 nla_put_failure:
bc3ed28c
TG		 2354 genlmsg_cancel(msg, hdr);
2355 return -EMSGSIZE;
55682965
JB		 2356}
2357
2358static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2359{
2360 int wp_idx = 0;
2361 int if_idx = 0;
2362 int wp_start = cb->args[0];
2363 int if_start = cb->args[1];
f5ea9120 2364 struct cfg80211_registered_device *rdev;
55682965
JB		 2365 struct wireless_dev *wdev;
2366
5fe231e8 2367 rtnl_lock();
f5ea9120
JB		 2368 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2369 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2370 continue;
bba95fef
JB		 2371 if (wp_idx < wp_start) {
2372 wp_idx++;
55682965 2373 continue;
bba95fef 2374 }
55682965
JB		 2375 if_idx = 0;
2376
89a54e48 2377 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2378 if (if_idx < if_start) {
2379 if_idx++;
55682965 2380 continue;
bba95fef 2381 }
15e47304 2382 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2383 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2384 rdev, wdev) < 0) {
bba95fef
JB		 2385 goto out;
2386 }
2387 if_idx++;
55682965 2388 }
bba95fef
JB		 2389
2390 wp_idx++;
55682965 2391 }
bba95fef 2392 out:
5fe231e8 2393 rtnl_unlock();
55682965
JB		 2394
2395 cb->args[0] = wp_idx;
2396 cb->args[1] = if_idx;
2397
2398 return skb->len;
2399}
2400
2401static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2402{
2403 struct sk_buff *msg;
1b8ec87a 2404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2405 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2406
fd2120ca 2407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2408 if (!msg)
4c476991 2409 return -ENOMEM;
55682965 2410
15e47304 2411 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2412 rdev, wdev) < 0) {
4c476991
JB		 2413 nlmsg_free(msg);
2414 return -ENOBUFS;
2415 }
55682965 2416
134e6375 2417 return genlmsg_reply(msg, info);
55682965
JB		 2418}
2419
66f7ac50
MW		 2420static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2421 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2422 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2423 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2424 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2425 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2426 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2427};
2428
2429static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2430{
2431 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2432 int flag;
2433
2434 *mntrflags = 0;
2435
2436 if (!nla)
2437 return -EINVAL;
2438
2439 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2440 nla, mntr_flags_policy))
2441 return -EINVAL;
2442
2443 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2444 if (flags[flag])
2445 *mntrflags |= (1<<flag);
2446
2447 return 0;
2448}
2449
9bc383de 2450static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2451 struct net_device *netdev, u8 use_4addr,
2452 enum nl80211_iftype iftype)
9bc383de 2453{
ad4bb6f8 2454 if (!use_4addr) {
f350a0a8 2455 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2456 return -EBUSY;
9bc383de 2457 return 0;
ad4bb6f8 2458 }
9bc383de
JB		 2459
2460 switch (iftype) {
2461 case NL80211_IFTYPE_AP_VLAN:
2462 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2463 return 0;
2464 break;
2465 case NL80211_IFTYPE_STATION:
2466 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2467 return 0;
2468 break;
2469 default:
2470 break;
2471 }
2472
2473 return -EOPNOTSUPP;
2474}
2475
55682965
JB		 2476static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2477{
4c476991 2478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2479 struct vif_params params;
e36d56b6 2480 int err;
04a773ad 2481 enum nl80211_iftype otype, ntype;
4c476991 2482 struct net_device *dev = info->user_ptr[1];
92ffe055 2483 u32 _flags, *flags = NULL;
ac7f9cfa 2484 bool change = false;
55682965 2485
2ec600d6
LCC		 2486 memset(&params, 0, sizeof(params));
2487
04a773ad 2488 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2489
723b038d 2490 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2491 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2492 if (otype != ntype)
ac7f9cfa 2493 change = true;
4c476991
JB		 2494 if (ntype > NL80211_IFTYPE_MAX)
2495 return -EINVAL;
723b038d
JB		 2496 }
2497
92ffe055 2498 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2499 struct wireless_dev *wdev = dev->ieee80211_ptr;
2500
4c476991
JB		 2501 if (ntype != NL80211_IFTYPE_MESH_POINT)
2502 return -EINVAL;
29cbe68c
JB		 2503 if (netif_running(dev))
2504 return -EBUSY;
2505
2506 wdev_lock(wdev);
2507 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2508 IEEE80211_MAX_MESH_ID_LEN);
2509 wdev->mesh_id_up_len =
2510 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2511 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2512 wdev->mesh_id_up_len);
2513 wdev_unlock(wdev);
2ec600d6
LCC		 2514 }
2515
8b787643
FF		 2516 if (info->attrs[NL80211_ATTR_4ADDR]) {
2517 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2518 change = true;
ad4bb6f8 2519 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2520 if (err)
4c476991 2521 return err;
8b787643
FF		 2522 } else {
2523 params.use_4addr = -1;
2524 }
2525
92ffe055 2526 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2527 if (ntype != NL80211_IFTYPE_MONITOR)
2528 return -EINVAL;
92ffe055
JB		 2529 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2530 &_flags);
ac7f9cfa 2531 if (err)
4c476991 2532 return err;
ac7f9cfa
JB		 2533
2534 flags = &_flags;
2535 change = true;
92ffe055 2536 }
3b85875a 2537
18003297 2538 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2539 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2540 return -EOPNOTSUPP;
2541
ac7f9cfa 2542 if (change)
3d54d255 2543 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2544 else
2545 err = 0;
60719ffd 2546
9bc383de
JB		 2547 if (!err && params.use_4addr != -1)
2548 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2549
55682965
JB		 2550 return err;
2551}
2552
2553static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2554{
4c476991 2555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2556 struct vif_params params;
84efbb84 2557 struct wireless_dev *wdev;
1c90f9d4 2558 struct sk_buff *msg;
55682965
JB		 2559 int err;
2560 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2561 u32 flags;
55682965 2562
78f22b6a
JB		 2563 /* to avoid failing a new interface creation due to pending removal */
2564 cfg80211_destroy_ifaces(rdev);
2565
2ec600d6
LCC		 2566 memset(&params, 0, sizeof(params));
2567
55682965
JB		 2568 if (!info->attrs[NL80211_ATTR_IFNAME])
2569 return -EINVAL;
2570
2571 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2572 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2573 if (type > NL80211_IFTYPE_MAX)
2574 return -EINVAL;
2575 }
2576
79c97e97 2577 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2578 !(rdev->wiphy.interface_modes & (1 << type)))
2579 return -EOPNOTSUPP;
55682965 2580
1c18f145
AS		 2581 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2582 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2583 ETH_ALEN);
2584 if (!is_valid_ether_addr(params.macaddr))
2585 return -EADDRNOTAVAIL;
2586 }
2587
9bc383de 2588 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2589 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2590 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2591 if (err)
4c476991 2592 return err;
9bc383de 2593 }
8b787643 2594
1c90f9d4
JB		 2595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2596 if (!msg)
2597 return -ENOMEM;
2598
66f7ac50
MW		 2599 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2600 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2601 &flags);
e057d3c3 2602
18003297 2603 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2604 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2605 return -EOPNOTSUPP;
2606
e35e4d28
HG		 2607 wdev = rdev_add_virtual_intf(rdev,
2608 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2609 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2610 if (IS_ERR(wdev)) {
2611 nlmsg_free(msg);
84efbb84 2612 return PTR_ERR(wdev);
1c90f9d4 2613 }
2ec600d6 2614
78f22b6a
JB		 2615 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2616 wdev->owner_nlportid = info->snd_portid;
2617
98104fde
JB		 2618 switch (type) {
2619 case NL80211_IFTYPE_MESH_POINT:
2620 if (!info->attrs[NL80211_ATTR_MESH_ID])
2621 break;
29cbe68c
JB		 2622 wdev_lock(wdev);
2623 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2624 IEEE80211_MAX_MESH_ID_LEN);
2625 wdev->mesh_id_up_len =
2626 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2627 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2628 wdev->mesh_id_up_len);
2629 wdev_unlock(wdev);
98104fde
JB		 2630 break;
2631 case NL80211_IFTYPE_P2P_DEVICE:
2632 /*
2633 * P2P Device doesn't have a netdev, so doesn't go
2634 * through the netdev notifier and must be added here
2635 */
2636 mutex_init(&wdev->mtx);
2637 INIT_LIST_HEAD(&wdev->event_list);
2638 spin_lock_init(&wdev->event_lock);
2639 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2640 spin_lock_init(&wdev->mgmt_registrations_lock);
2641
98104fde
JB		 2642 wdev->identifier = ++rdev->wdev_id;
2643 list_add_rcu(&wdev->list, &rdev->wdev_list);
2644 rdev->devlist_generation++;
98104fde
JB		 2645 break;
2646 default:
2647 break;
29cbe68c
JB		 2648 }
2649
15e47304 2650 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2651 rdev, wdev) < 0) {
2652 nlmsg_free(msg);
2653 return -ENOBUFS;
2654 }
2655
2656 return genlmsg_reply(msg, info);
55682965
JB		 2657}
2658
2659static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2660{
4c476991 2661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2662 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2663
4c476991
JB		 2664 if (!rdev->ops->del_virtual_intf)
2665 return -EOPNOTSUPP;
55682965 2666
84efbb84
JB		 2667 /*
2668 * If we remove a wireless device without a netdev then clear
2669 * user_ptr[1] so that nl80211_post_doit won't dereference it
2670 * to check if it needs to do dev_put(). Otherwise it crashes
2671 * since the wdev has been freed, unlike with a netdev where
2672 * we need the dev_put() for the netdev to really be freed.
2673 */
2674 if (!wdev->netdev)
2675 info->user_ptr[1] = NULL;
2676
e35e4d28 2677 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2678}
2679
1d9d9213
SW		 2680static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2681{
2682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2683 struct net_device *dev = info->user_ptr[1];
2684 u16 noack_map;
2685
2686 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2687 return -EINVAL;
2688
2689 if (!rdev->ops->set_noack_map)
2690 return -EOPNOTSUPP;
2691
2692 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2693
e35e4d28 2694 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2695}
2696
41ade00f
JB		 2697struct get_key_cookie {
2698 struct sk_buff *msg;
2699 int error;
b9454e83 2700 int idx;
41ade00f
JB		 2701};
2702
2703static void get_key_callback(void *c, struct key_params *params)
2704{
b9454e83 2705 struct nlattr *key;
41ade00f
JB		 2706 struct get_key_cookie *cookie = c;
2707
9360ffd1
DM		 2708 if ((params->key &&
2709 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2710 params->key_len, params->key)) ||
2711 (params->seq &&
2712 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2713 params->seq_len, params->seq)) ||
2714 (params->cipher &&
2715 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2716 params->cipher)))
2717 goto nla_put_failure;
41ade00f 2718
b9454e83
JB		 2719 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2720 if (!key)
2721 goto nla_put_failure;
2722
9360ffd1
DM		 2723 if ((params->key &&
2724 nla_put(cookie->msg, NL80211_KEY_DATA,
2725 params->key_len, params->key)) ||
2726 (params->seq &&
2727 nla_put(cookie->msg, NL80211_KEY_SEQ,
2728 params->seq_len, params->seq)) ||
2729 (params->cipher &&
2730 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2731 params->cipher)))
2732 goto nla_put_failure;
b9454e83 2733
9360ffd1
DM		 2734 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2735 goto nla_put_failure;
b9454e83
JB		 2736
2737 nla_nest_end(cookie->msg, key);
2738
41ade00f
JB		 2739 return;
2740 nla_put_failure:
2741 cookie->error = 1;
2742}
2743
2744static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2745{
4c476991 2746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2747 int err;
4c476991 2748 struct net_device *dev = info->user_ptr[1];
41ade00f 2749 u8 key_idx = 0;
e31b8213
JB		 2750 const u8 *mac_addr = NULL;
2751 bool pairwise;
41ade00f
JB		 2752 struct get_key_cookie cookie = {
2753 .error = 0,
2754 };
2755 void *hdr;
2756 struct sk_buff *msg;
2757
2758 if (info->attrs[NL80211_ATTR_KEY_IDX])
2759 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2760
3cfcf6ac 2761 if (key_idx > 5)
41ade00f
JB		 2762 return -EINVAL;
2763
2764 if (info->attrs[NL80211_ATTR_MAC])
2765 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2766
e31b8213
JB		 2767 pairwise = !!mac_addr;
2768 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2769 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2770 if (kt >= NUM_NL80211_KEYTYPES)
2771 return -EINVAL;
2772 if (kt != NL80211_KEYTYPE_GROUP &&
2773 kt != NL80211_KEYTYPE_PAIRWISE)
2774 return -EINVAL;
2775 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2776 }
2777
4c476991
JB		 2778 if (!rdev->ops->get_key)
2779 return -EOPNOTSUPP;
41ade00f 2780
fd2120ca 2781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2782 if (!msg)
2783 return -ENOMEM;
41ade00f 2784
15e47304 2785 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2786 NL80211_CMD_NEW_KEY);
cb35fba3 2787 if (!hdr)
9fe271af 2788 goto nla_put_failure;
41ade00f
JB		 2789
2790 cookie.msg = msg;
b9454e83 2791 cookie.idx = key_idx;
41ade00f 2792
9360ffd1
DM		 2793 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2794 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2795 goto nla_put_failure;
2796 if (mac_addr &&
2797 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2798 goto nla_put_failure;
41ade00f 2799
e31b8213
JB		 2800 if (pairwise && mac_addr &&
2801 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2802 return -ENOENT;
2803
e35e4d28
HG		 2804 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2805 get_key_callback);
41ade00f
JB		 2806
2807 if (err)
6c95e2a2 2808 goto free_msg;
41ade00f
JB		 2809
2810 if (cookie.error)
2811 goto nla_put_failure;
2812
2813 genlmsg_end(msg, hdr);
4c476991 2814 return genlmsg_reply(msg, info);
41ade00f
JB		 2815
2816 nla_put_failure:
2817 err = -ENOBUFS;
6c95e2a2 2818 free_msg:
41ade00f 2819 nlmsg_free(msg);
41ade00f
JB		 2820 return err;
2821}
2822
2823static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2824{
4c476991 2825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2826 struct key_parse key;
41ade00f 2827 int err;
4c476991 2828 struct net_device *dev = info->user_ptr[1];
41ade00f 2829
b9454e83
JB		 2830 err = nl80211_parse_key(info, &key);
2831 if (err)
2832 return err;
41ade00f 2833
b9454e83 2834 if (key.idx < 0)
41ade00f
JB		 2835 return -EINVAL;
2836
b9454e83
JB		 2837 /* only support setting default key */
2838 if (!key.def && !key.defmgmt)
41ade00f
JB		 2839 return -EINVAL;
2840
dbd2fd65 2841 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2842
dbd2fd65
JB		 2843 if (key.def) {
2844 if (!rdev->ops->set_default_key) {
2845 err = -EOPNOTSUPP;
2846 goto out;
2847 }
41ade00f 2848
dbd2fd65
JB		 2849 err = nl80211_key_allowed(dev->ieee80211_ptr);
2850 if (err)
2851 goto out;
2852
e35e4d28 2853 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2854 key.def_uni, key.def_multi);
2855
2856 if (err)
2857 goto out;
fffd0934 2858
3d23e349 2859#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2860 dev->ieee80211_ptr->wext.default_key = key.idx;
2861#endif
2862 } else {
2863 if (key.def_uni || !key.def_multi) {
2864 err = -EINVAL;
2865 goto out;
2866 }
2867
2868 if (!rdev->ops->set_default_mgmt_key) {
2869 err = -EOPNOTSUPP;
2870 goto out;
2871 }
2872
2873 err = nl80211_key_allowed(dev->ieee80211_ptr);
2874 if (err)
2875 goto out;
2876
e35e4d28 2877 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2878 if (err)
2879 goto out;
2880
2881#ifdef CONFIG_CFG80211_WEXT
2882 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2883#endif
dbd2fd65
JB		 2884 }
2885
2886 out:
fffd0934 2887 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2888
41ade00f
JB		 2889 return err;
2890}
2891
2892static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2893{
4c476991 2894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2895 int err;
4c476991 2896 struct net_device *dev = info->user_ptr[1];
b9454e83 2897 struct key_parse key;
e31b8213 2898 const u8 *mac_addr = NULL;
41ade00f 2899
b9454e83
JB		 2900 err = nl80211_parse_key(info, &key);
2901 if (err)
2902 return err;
41ade00f 2903
b9454e83 2904 if (!key.p.key)
41ade00f
JB		 2905 return -EINVAL;
2906
41ade00f
JB		 2907 if (info->attrs[NL80211_ATTR_MAC])
2908 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2909
e31b8213
JB		 2910 if (key.type == -1) {
2911 if (mac_addr)
2912 key.type = NL80211_KEYTYPE_PAIRWISE;
2913 else
2914 key.type = NL80211_KEYTYPE_GROUP;
2915 }
2916
2917 /* for now */
2918 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2919 key.type != NL80211_KEYTYPE_GROUP)
2920 return -EINVAL;
2921
4c476991
JB		 2922 if (!rdev->ops->add_key)
2923 return -EOPNOTSUPP;
25e47c18 2924
e31b8213
JB		 2925 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2926 key.type == NL80211_KEYTYPE_PAIRWISE,
2927 mac_addr))
4c476991 2928 return -EINVAL;
41ade00f 2929
fffd0934
JB		 2930 wdev_lock(dev->ieee80211_ptr);
2931 err = nl80211_key_allowed(dev->ieee80211_ptr);
2932 if (!err)
e35e4d28
HG		 2933 err = rdev_add_key(rdev, dev, key.idx,
2934 key.type == NL80211_KEYTYPE_PAIRWISE,
2935 mac_addr, &key.p);
fffd0934 2936 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2937
41ade00f
JB		 2938 return err;
2939}
2940
2941static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2942{
4c476991 2943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2944 int err;
4c476991 2945 struct net_device *dev = info->user_ptr[1];
41ade00f 2946 u8 *mac_addr = NULL;
b9454e83 2947 struct key_parse key;
41ade00f 2948
b9454e83
JB		 2949 err = nl80211_parse_key(info, &key);
2950 if (err)
2951 return err;
41ade00f
JB		 2952
2953 if (info->attrs[NL80211_ATTR_MAC])
2954 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2955
e31b8213
JB		 2956 if (key.type == -1) {
2957 if (mac_addr)
2958 key.type = NL80211_KEYTYPE_PAIRWISE;
2959 else
2960 key.type = NL80211_KEYTYPE_GROUP;
2961 }
2962
2963 /* for now */
2964 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2965 key.type != NL80211_KEYTYPE_GROUP)
2966 return -EINVAL;
2967
4c476991
JB		 2968 if (!rdev->ops->del_key)
2969 return -EOPNOTSUPP;
41ade00f 2970
fffd0934
JB		 2971 wdev_lock(dev->ieee80211_ptr);
2972 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2973
2974 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2975 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2976 err = -ENOENT;
2977
fffd0934 2978 if (!err)
e35e4d28
HG		 2979 err = rdev_del_key(rdev, dev, key.idx,
2980 key.type == NL80211_KEYTYPE_PAIRWISE,
2981 mac_addr);
41ade00f 2982
3d23e349 2983#ifdef CONFIG_CFG80211_WEXT
08645126 2984 if (!err) {
b9454e83 2985 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2986 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2987 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2988 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2989 }
2990#endif
fffd0934 2991 wdev_unlock(dev->ieee80211_ptr);
08645126 2992
41ade00f
JB		 2993 return err;
2994}
2995
77765eaf
VT		 2996/* This function returns an error or the number of nested attributes */
2997static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2998{
2999 struct nlattr *attr;
3000 int n_entries = 0, tmp;
3001
3002 nla_for_each_nested(attr, nl_attr, tmp) {
3003 if (nla_len(attr) != ETH_ALEN)
3004 return -EINVAL;
3005
3006 n_entries++;
3007 }
3008
3009 return n_entries;
3010}
3011
3012/*
3013 * This function parses ACL information and allocates memory for ACL data.
3014 * On successful return, the calling function is responsible to free the
3015 * ACL buffer returned by this function.
3016 */
3017static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3018 struct genl_info *info)
3019{
3020 enum nl80211_acl_policy acl_policy;
3021 struct nlattr *attr;
3022 struct cfg80211_acl_data *acl;
3023 int i = 0, n_entries, tmp;
3024
3025 if (!wiphy->max_acl_mac_addrs)
3026 return ERR_PTR(-EOPNOTSUPP);
3027
3028 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3029 return ERR_PTR(-EINVAL);
3030
3031 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3032 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3033 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3034 return ERR_PTR(-EINVAL);
3035
3036 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3037 return ERR_PTR(-EINVAL);
3038
3039 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3040 if (n_entries < 0)
3041 return ERR_PTR(n_entries);
3042
3043 if (n_entries > wiphy->max_acl_mac_addrs)
3044 return ERR_PTR(-ENOTSUPP);
3045
3046 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3047 GFP_KERNEL);
3048 if (!acl)
3049 return ERR_PTR(-ENOMEM);
3050
3051 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3052 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3053 i++;
3054 }
3055
3056 acl->n_acl_entries = n_entries;
3057 acl->acl_policy = acl_policy;
3058
3059 return acl;
3060}
3061
3062static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3063{
3064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3065 struct net_device *dev = info->user_ptr[1];
3066 struct cfg80211_acl_data *acl;
3067 int err;
3068
3069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3070 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3071 return -EOPNOTSUPP;
3072
3073 if (!dev->ieee80211_ptr->beacon_interval)
3074 return -EINVAL;
3075
3076 acl = parse_acl_data(&rdev->wiphy, info);
3077 if (IS_ERR(acl))
3078 return PTR_ERR(acl);
3079
3080 err = rdev_set_mac_acl(rdev, dev, acl);
3081
3082 kfree(acl);
3083
3084 return err;
3085}
3086
a1193be8 3087static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3088 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3089{
8860020e 3090 bool haveinfo = false;
ed1b6cc7 3091
a1193be8
SW		 3092 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3093 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3094 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3095 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3096 return -EINVAL;
3097
8860020e 3098 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3099
a1193be8
SW		 3100 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3101 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3102 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3103 if (!bcn->head_len)
3104 return -EINVAL;
3105 haveinfo = true;
ed1b6cc7
JB		 3106 }
3107
a1193be8
SW		 3108 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3109 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3110 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3111 haveinfo = true;
ed1b6cc7
JB		 3112 }
3113
4c476991
JB		 3114 if (!haveinfo)
3115 return -EINVAL;
3b85875a 3116
a1193be8
SW		 3117 if (attrs[NL80211_ATTR_IE]) {
3118 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3119 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3120 }
3121
a1193be8 3122 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3123 bcn->proberesp_ies =
a1193be8 3124 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3125 bcn->proberesp_ies_len =
a1193be8 3126 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3127 }
3128
a1193be8 3129 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3130 bcn->assocresp_ies =
a1193be8 3131 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3132 bcn->assocresp_ies_len =
a1193be8 3133 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3134 }
3135
a1193be8
SW		 3136 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3137 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3138 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3139 }
3140
8860020e
JB		 3141 return 0;
3142}
3143
46c1dd0c
FF		 3144static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3145 struct cfg80211_ap_settings *params)
3146{
3147 struct wireless_dev *wdev;
3148 bool ret = false;
3149
89a54e48 3150 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3151 if (wdev->iftype != NL80211_IFTYPE_AP &&
3152 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3153 continue;
3154
683b6d3b 3155 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3156 continue;
3157
683b6d3b 3158 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3159 ret = true;
3160 break;
3161 }
3162
46c1dd0c
FF		 3163 return ret;
3164}
3165
e39e5b5e
JM		 3166static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3167 enum nl80211_auth_type auth_type,
3168 enum nl80211_commands cmd)
3169{
3170 if (auth_type > NL80211_AUTHTYPE_MAX)
3171 return false;
3172
3173 switch (cmd) {
3174 case NL80211_CMD_AUTHENTICATE:
3175 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3176 auth_type == NL80211_AUTHTYPE_SAE)
3177 return false;
3178 return true;
3179 case NL80211_CMD_CONNECT:
3180 case NL80211_CMD_START_AP:
3181 /* SAE not supported yet */
3182 if (auth_type == NL80211_AUTHTYPE_SAE)
3183 return false;
3184 return true;
3185 default:
3186 return false;
3187 }
3188}
3189
8860020e
JB		 3190static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3191{
3192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3193 struct net_device *dev = info->user_ptr[1];
3194 struct wireless_dev *wdev = dev->ieee80211_ptr;
3195 struct cfg80211_ap_settings params;
3196 int err;
3197
3198 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3199 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3200 return -EOPNOTSUPP;
3201
3202 if (!rdev->ops->start_ap)
3203 return -EOPNOTSUPP;
3204
3205 if (wdev->beacon_interval)
3206 return -EALREADY;
3207
3208 memset(&params, 0, sizeof(params));
3209
3210 /* these are required for START_AP */
3211 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3212 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3213 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3214 return -EINVAL;
3215
a1193be8 3216 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3217 if (err)
3218 return err;
3219
3220 params.beacon_interval =
3221 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3222 params.dtim_period =
3223 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3224
3225 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3226 if (err)
3227 return err;
3228
3229 /*
3230 * In theory, some of these attributes should be required here
3231 * but since they were not used when the command was originally
3232 * added, keep them optional for old user space programs to let
3233 * them continue to work with drivers that do not need the
3234 * additional information -- drivers must check!
3235 */
3236 if (info->attrs[NL80211_ATTR_SSID]) {
3237 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3238 params.ssid_len =
3239 nla_len(info->attrs[NL80211_ATTR_SSID]);
3240 if (params.ssid_len == 0 ||
3241 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3242 return -EINVAL;
3243 }
3244
3245 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3246 params.hidden_ssid = nla_get_u32(
3247 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3248 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3249 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3250 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3251 return -EINVAL;
3252 }
3253
3254 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3255
3256 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3257 params.auth_type = nla_get_u32(
3258 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3259 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3260 NL80211_CMD_START_AP))
8860020e
JB		 3261 return -EINVAL;
3262 } else
3263 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3264
3265 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3266 NL80211_MAX_NR_CIPHER_SUITES);
3267 if (err)
3268 return err;
3269
1b658f11
VT		 3270 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3271 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3272 return -EOPNOTSUPP;
3273 params.inactivity_timeout = nla_get_u16(
3274 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3275 }
3276
53cabad7
JB		 3277 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3278 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3279 return -EINVAL;
3280 params.p2p_ctwindow =
3281 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3282 if (params.p2p_ctwindow > 127)
3283 return -EINVAL;
3284 if (params.p2p_ctwindow != 0 &&
3285 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3286 return -EINVAL;
3287 }
3288
3289 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3290 u8 tmp;
3291
3292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3293 return -EINVAL;
3294 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3295 if (tmp > 1)
3296 return -EINVAL;
3297 params.p2p_opp_ps = tmp;
3298 if (params.p2p_opp_ps != 0 &&
3299 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3300 return -EINVAL;
3301 }
3302
aa430da4 3303 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3304 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3305 if (err)
3306 return err;
3307 } else if (wdev->preset_chandef.chan) {
3308 params.chandef = wdev->preset_chandef;
46c1dd0c 3309 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3310 return -EINVAL;
3311
174e0cd2
IP		 3312 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3313 wdev->iftype))
aa430da4
JB		 3314 return -EINVAL;
3315
77765eaf
VT		 3316 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3317 params.acl = parse_acl_data(&rdev->wiphy, info);
3318 if (IS_ERR(params.acl))
3319 return PTR_ERR(params.acl);
3320 }
3321
c56589ed 3322 wdev_lock(wdev);
e35e4d28 3323 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3324 if (!err) {
683b6d3b 3325 wdev->preset_chandef = params.chandef;
8860020e 3326 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3327 wdev->chandef = params.chandef;
06e191e2
AQ		 3328 wdev->ssid_len = params.ssid_len;
3329 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3330 }
c56589ed 3331 wdev_unlock(wdev);
77765eaf
VT		 3332
3333 kfree(params.acl);
3334
56d1893d 3335 return err;
ed1b6cc7
JB		 3336}
3337
8860020e
JB		 3338static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3339{
3340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3341 struct net_device *dev = info->user_ptr[1];
3342 struct wireless_dev *wdev = dev->ieee80211_ptr;
3343 struct cfg80211_beacon_data params;
3344 int err;
3345
3346 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3348 return -EOPNOTSUPP;
3349
3350 if (!rdev->ops->change_beacon)
3351 return -EOPNOTSUPP;
3352
3353 if (!wdev->beacon_interval)
3354 return -EINVAL;
3355
a1193be8 3356 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3357 if (err)
3358 return err;
3359
c56589ed
SW		 3360 wdev_lock(wdev);
3361 err = rdev_change_beacon(rdev, dev, &params);
3362 wdev_unlock(wdev);
3363
3364 return err;
8860020e
JB		 3365}
3366
3367static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3368{
4c476991
JB		 3369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3370 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3371
7c8d5e03 3372 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3373}
3374
5727ef1b
JB		 3375static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3376 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3377 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3378 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3379 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3380 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3381 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3382};
3383
eccb8e8f 3384static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3385 enum nl80211_iftype iftype,
eccb8e8f 3386 struct station_parameters *params)
5727ef1b
JB		 3387{
3388 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3389 struct nlattr *nla;
5727ef1b
JB		 3390 int flag;
3391
eccb8e8f
JB		 3392 /*
3393 * Try parsing the new attribute first so userspace
3394 * can specify both for older kernels.
3395 */
3396 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3397 if (nla) {
3398 struct nl80211_sta_flag_update *sta_flags;
3399
3400 sta_flags = nla_data(nla);
3401 params->sta_flags_mask = sta_flags->mask;
3402 params->sta_flags_set = sta_flags->set;
77ee7c89 3403 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3404 if ((params->sta_flags_mask |
3405 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3406 return -EINVAL;
3407 return 0;
3408 }
3409
3410 /* if present, parse the old attribute */
5727ef1b 3411
eccb8e8f 3412 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3413 if (!nla)
3414 return 0;
3415
3416 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3417 nla, sta_flags_policy))
3418 return -EINVAL;
3419
bdd3ae3d
JB		 3420 /*
3421 * Only allow certain flags for interface types so that
3422 * other attributes are silently ignored. Remember that
3423 * this is backward compatibility code with old userspace
3424 * and shouldn't be hit in other cases anyway.
3425 */
3426 switch (iftype) {
3427 case NL80211_IFTYPE_AP:
3428 case NL80211_IFTYPE_AP_VLAN:
3429 case NL80211_IFTYPE_P2P_GO:
3430 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3431 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3432 BIT(NL80211_STA_FLAG_WME) |
3433 BIT(NL80211_STA_FLAG_MFP);
3434 break;
3435 case NL80211_IFTYPE_P2P_CLIENT:
3436 case NL80211_IFTYPE_STATION:
3437 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3438 BIT(NL80211_STA_FLAG_TDLS_PEER);
3439 break;
3440 case NL80211_IFTYPE_MESH_POINT:
3441 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3442 BIT(NL80211_STA_FLAG_MFP) |
3443 BIT(NL80211_STA_FLAG_AUTHORIZED);
3444 default:
3445 return -EINVAL;
3446 }
5727ef1b 3447
3383b5a6
JB		 3448 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3449 if (flags[flag]) {
eccb8e8f 3450 params->sta_flags_set |= (1<<flag);
5727ef1b 3451
3383b5a6
JB		 3452 /* no longer support new API additions in old API */
3453 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3454 return -EINVAL;
3455 }
3456 }
3457
5727ef1b
JB		 3458 return 0;
3459}
3460
c8dcfd8a
FF		 3461static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3462 int attr)
3463{
3464 struct nlattr *rate;
8eb41c8d
VK		 3465 u32 bitrate;
3466 u16 bitrate_compat;
c8dcfd8a
FF		 3467
3468 rate = nla_nest_start(msg, attr);
3469 if (!rate)
db9c64cf 3470 return false;
c8dcfd8a
FF		 3471
3472 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3473 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3474 /* report 16-bit bitrate only if we can */
3475 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3476 if (bitrate > 0 &&
3477 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3478 return false;
3479 if (bitrate_compat > 0 &&
3480 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3481 return false;
3482
3483 if (info->flags & RATE_INFO_FLAGS_MCS) {
3484 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3485 return false;
3486 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3487 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3488 return false;
3489 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3490 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3491 return false;
3492 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3493 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3494 return false;
3495 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3496 return false;
3497 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3498 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3499 return false;
3500 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3501 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3502 return false;
3503 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3504 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3505 return false;
3506 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3507 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3508 return false;
3509 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3510 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3511 return false;
3512 }
c8dcfd8a
FF		 3513
3514 nla_nest_end(msg, rate);
3515 return true;
c8dcfd8a
FF		 3516}
3517
119363c7
FF		 3518static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3519 int id)
3520{
3521 void *attr;
3522 int i = 0;
3523
3524 if (!mask)
3525 return true;
3526
3527 attr = nla_nest_start(msg, id);
3528 if (!attr)
3529 return false;
3530
3531 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3532 if (!(mask & BIT(i)))
3533 continue;
3534
3535 if (nla_put_u8(msg, i, signal[i]))
3536 return false;
3537 }
3538
3539 nla_nest_end(msg, attr);
3540
3541 return true;
3542}
3543
15e47304 3544static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3545 int flags,
3546 struct cfg80211_registered_device *rdev,
3547 struct net_device *dev,
98b62183 3548 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3549{
3550 void *hdr;
f4263c98 3551 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3552
15e47304 3553 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3554 if (!hdr)
3555 return -1;
3556
9360ffd1
DM		 3557 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3558 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3559 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3560 goto nla_put_failure;
f5ea9120 3561
2ec600d6
LCC		 3562 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3563 if (!sinfoattr)
fd5b74dc 3564 goto nla_put_failure;
9360ffd1
DM		 3565 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3566 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3567 sinfo->connected_time))
3568 goto nla_put_failure;
3569 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3570 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3571 sinfo->inactive_time))
3572 goto nla_put_failure;
42745e03
VK		 3573 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3574 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3575 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3576 (u32)sinfo->rx_bytes))
9360ffd1 3577 goto nla_put_failure;
42745e03 3578 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3579 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3580 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3581 (u32)sinfo->tx_bytes))
3582 goto nla_put_failure;
3583 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3584 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3585 sinfo->rx_bytes))
3586 goto nla_put_failure;
3587 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3588 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3589 sinfo->tx_bytes))
3590 goto nla_put_failure;
3591 if ((sinfo->filled & STATION_INFO_LLID) &&
3592 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3593 goto nla_put_failure;
3594 if ((sinfo->filled & STATION_INFO_PLID) &&
3595 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3598 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3599 sinfo->plink_state))
3600 goto nla_put_failure;
66266b3a
JL		 3601 switch (rdev->wiphy.signal_type) {
3602 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3603 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3604 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3605 sinfo->signal))
3606 goto nla_put_failure;
3607 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3608 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3609 sinfo->signal_avg))
3610 goto nla_put_failure;
66266b3a
JL		 3611 break;
3612 default:
3613 break;
3614 }
119363c7
FF		 3615 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3616 if (!nl80211_put_signal(msg, sinfo->chains,
3617 sinfo->chain_signal,
3618 NL80211_STA_INFO_CHAIN_SIGNAL))
3619 goto nla_put_failure;
3620 }
3621 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3622 if (!nl80211_put_signal(msg, sinfo->chains,
3623 sinfo->chain_signal_avg,
3624 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3625 goto nla_put_failure;
3626 }
420e7fab 3627 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3628 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3629 NL80211_STA_INFO_TX_BITRATE))
3630 goto nla_put_failure;
3631 }
3632 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3633 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3634 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3635 goto nla_put_failure;
420e7fab 3636 }
9360ffd1
DM		 3637 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3638 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3639 sinfo->rx_packets))
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3642 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3643 sinfo->tx_packets))
3644 goto nla_put_failure;
3645 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3646 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3647 sinfo->tx_retries))
3648 goto nla_put_failure;
3649 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3650 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3651 sinfo->tx_failed))
3652 goto nla_put_failure;
3653 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3654 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3655 sinfo->beacon_loss_count))
3656 goto nla_put_failure;
3b1c5a53
MP		 3657 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3658 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3659 sinfo->local_pm))
3660 goto nla_put_failure;
3661 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3662 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3663 sinfo->peer_pm))
3664 goto nla_put_failure;
3665 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3666 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3667 sinfo->nonpeer_pm))
3668 goto nla_put_failure;
f4263c98
PS		 3669 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3670 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3671 if (!bss_param)
3672 goto nla_put_failure;
3673
9360ffd1
DM		 3674 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3675 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3676 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3677 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3678 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3679 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3680 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3681 sinfo->bss_param.dtim_period) ||
3682 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3683 sinfo->bss_param.beacon_interval))
3684 goto nla_put_failure;
f4263c98
PS		 3685
3686 nla_nest_end(msg, bss_param);
3687 }
9360ffd1
DM		 3688 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3689 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3690 sizeof(struct nl80211_sta_flag_update),
3691 &sinfo->sta_flags))
3692 goto nla_put_failure;
7eab0f64
JL		 3693 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3694 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3695 sinfo->t_offset))
3696 goto nla_put_failure;
2ec600d6 3697 nla_nest_end(msg, sinfoattr);
fd5b74dc 3698
9360ffd1
DM		 3699 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3700 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3701 sinfo->assoc_req_ies))
3702 goto nla_put_failure;
50d3dfb7 3703
fd5b74dc
JB		 3704 return genlmsg_end(msg, hdr);
3705
3706 nla_put_failure:
bc3ed28c
TG		 3707 genlmsg_cancel(msg, hdr);
3708 return -EMSGSIZE;
fd5b74dc
JB		 3709}
3710
2ec600d6 3711static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3712 struct netlink_callback *cb)
2ec600d6 3713{
2ec600d6 3714 struct station_info sinfo;
1b8ec87a 3715 struct cfg80211_registered_device *rdev;
97990a06 3716 struct wireless_dev *wdev;
2ec600d6 3717 u8 mac_addr[ETH_ALEN];
97990a06 3718 int sta_idx = cb->args[2];
2ec600d6 3719 int err;
2ec600d6 3720
1b8ec87a 3721 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3722 if (err)
3723 return err;
bba95fef 3724
97990a06
JB		 3725 if (!wdev->netdev) {
3726 err = -EINVAL;
3727 goto out_err;
3728 }
3729
1b8ec87a 3730 if (!rdev->ops->dump_station) {
eec60b03 3731 err = -EOPNOTSUPP;
bba95fef
JB		 3732 goto out_err;
3733 }
3734
bba95fef 3735 while (1) {
f612cedf 3736 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3737 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3738 mac_addr, &sinfo);
bba95fef
JB		 3739 if (err == -ENOENT)
3740 break;
3741 if (err)
3b85875a 3742 goto out_err;
bba95fef
JB		 3743
3744 if (nl80211_send_station(skb,
15e47304 3745 NETLINK_CB(cb->skb).portid,
bba95fef 3746 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3747 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3748 &sinfo) < 0)
3749 goto out;
3750
3751 sta_idx++;
3752 }
3753
3754
3755 out:
97990a06 3756 cb->args[2] = sta_idx;
bba95fef 3757 err = skb->len;
bba95fef 3758 out_err:
1b8ec87a 3759 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3760
3761 return err;
2ec600d6 3762}
fd5b74dc 3763
5727ef1b
JB		 3764static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3765{
4c476991
JB		 3766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3767 struct net_device *dev = info->user_ptr[1];
2ec600d6 3768 struct station_info sinfo;
fd5b74dc
JB		 3769 struct sk_buff *msg;
3770 u8 *mac_addr = NULL;
4c476991 3771 int err;
fd5b74dc 3772
2ec600d6 3773 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3774
3775 if (!info->attrs[NL80211_ATTR_MAC])
3776 return -EINVAL;
3777
3778 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3779
4c476991
JB		 3780 if (!rdev->ops->get_station)
3781 return -EOPNOTSUPP;
3b85875a 3782
e35e4d28 3783 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3784 if (err)
4c476991 3785 return err;
2ec600d6 3786
fd2120ca 3787 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3788 if (!msg)
4c476991 3789 return -ENOMEM;
fd5b74dc 3790
15e47304 3791 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3792 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3793 nlmsg_free(msg);
3794 return -ENOBUFS;
3795 }
3b85875a 3796
4c476991 3797 return genlmsg_reply(msg, info);
5727ef1b
JB		 3798}
3799
77ee7c89
JB		 3800int cfg80211_check_station_change(struct wiphy *wiphy,
3801 struct station_parameters *params,
3802 enum cfg80211_station_type statype)
3803{
3804 if (params->listen_interval != -1)
3805 return -EINVAL;
3806 if (params->aid)
3807 return -EINVAL;
3808
3809 /* When you run into this, adjust the code below for the new flag */
3810 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3811
3812 switch (statype) {
eef941e6
TP		 3813 case CFG80211_STA_MESH_PEER_KERNEL:
3814 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3815 /*
3816 * No ignoring the TDLS flag here -- the userspace mesh
3817 * code doesn't have the bug of including TDLS in the
3818 * mask everywhere.
3819 */
3820 if (params->sta_flags_mask &
3821 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3822 BIT(NL80211_STA_FLAG_MFP) |
3823 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3824 return -EINVAL;
3825 break;
3826 case CFG80211_STA_TDLS_PEER_SETUP:
3827 case CFG80211_STA_TDLS_PEER_ACTIVE:
3828 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3829 return -EINVAL;
3830 /* ignore since it can't change */
3831 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3832 break;
3833 default:
3834 /* disallow mesh-specific things */
3835 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3836 return -EINVAL;
3837 if (params->local_pm)
3838 return -EINVAL;
3839 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3840 return -EINVAL;
3841 }
3842
3843 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3844 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3845 /* TDLS can't be set, ... */
3846 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3847 return -EINVAL;
3848 /*
3849 * ... but don't bother the driver with it. This works around
3850 * a hostapd/wpa_supplicant issue -- it always includes the
3851 * TLDS_PEER flag in the mask even for AP mode.
3852 */
3853 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3854 }
3855
3856 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3857 /* reject other things that can't change */
3858 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3859 return -EINVAL;
3860 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3861 return -EINVAL;
3862 if (params->supported_rates)
3863 return -EINVAL;
3864 if (params->ext_capab || params->ht_capa || params->vht_capa)
3865 return -EINVAL;
3866 }
3867
3868 if (statype != CFG80211_STA_AP_CLIENT) {
3869 if (params->vlan)
3870 return -EINVAL;
3871 }
3872
3873 switch (statype) {
3874 case CFG80211_STA_AP_MLME_CLIENT:
3875 /* Use this only for authorizing/unauthorizing a station */
3876 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3877 return -EOPNOTSUPP;
3878 break;
3879 case CFG80211_STA_AP_CLIENT:
3880 /* accept only the listed bits */
3881 if (params->sta_flags_mask &
3882 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3883 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3884 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3885 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3886 BIT(NL80211_STA_FLAG_WME) |
3887 BIT(NL80211_STA_FLAG_MFP)))
3888 return -EINVAL;
3889
3890 /* but authenticated/associated only if driver handles it */
3891 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3892 params->sta_flags_mask &
3893 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3894 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3895 return -EINVAL;
3896 break;
3897 case CFG80211_STA_IBSS:
3898 case CFG80211_STA_AP_STA:
3899 /* reject any changes other than AUTHORIZED */
3900 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3901 return -EINVAL;
3902 break;
3903 case CFG80211_STA_TDLS_PEER_SETUP:
3904 /* reject any changes other than AUTHORIZED or WME */
3905 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3906 BIT(NL80211_STA_FLAG_WME)))
3907 return -EINVAL;
3908 /* force (at least) rates when authorizing */
3909 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3910 !params->supported_rates)
3911 return -EINVAL;
3912 break;
3913 case CFG80211_STA_TDLS_PEER_ACTIVE:
3914 /* reject any changes */
3915 return -EINVAL;
eef941e6 3916 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3917 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3918 return -EINVAL;
3919 break;
eef941e6 3920 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3921 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3922 return -EINVAL;
3923 break;
3924 }
3925
3926 return 0;
3927}
3928EXPORT_SYMBOL(cfg80211_check_station_change);
3929
5727ef1b 3930/*
c258d2de 3931 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3932 */
80b99899
JB		 3933static struct net_device *get_vlan(struct genl_info *info,
3934 struct cfg80211_registered_device *rdev)
5727ef1b 3935{
463d0183 3936 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3937 struct net_device *v;
3938 int ret;
3939
3940 if (!vlanattr)
3941 return NULL;
3942
3943 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3944 if (!v)
3945 return ERR_PTR(-ENODEV);
3946
3947 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3948 ret = -EINVAL;
3949 goto error;
5727ef1b 3950 }
80b99899 3951
77ee7c89
JB		 3952 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3953 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3954 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3955 ret = -EINVAL;
3956 goto error;
3957 }
3958
80b99899
JB		 3959 if (!netif_running(v)) {
3960 ret = -ENETDOWN;
3961 goto error;
3962 }
3963
3964 return v;
3965 error:
3966 dev_put(v);
3967 return ERR_PTR(ret);
5727ef1b
JB		 3968}
3969
94e860f1
JB		 3970static const struct nla_policy
3971nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3972 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3973 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3974};
3975
ff276691
JB		 3976static int nl80211_parse_sta_wme(struct genl_info *info,
3977 struct station_parameters *params)
df881293 3978{
df881293
JM		 3979 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3980 struct nlattr *nla;
3981 int err;
3982
df881293
JM		 3983 /* parse WME attributes if present */
3984 if (!info->attrs[NL80211_ATTR_STA_WME])
3985 return 0;
3986
3987 nla = info->attrs[NL80211_ATTR_STA_WME];
3988 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3989 nl80211_sta_wme_policy);
3990 if (err)
3991 return err;
3992
3993 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3994 params->uapsd_queues = nla_get_u8(
3995 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3996 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3997 return -EINVAL;
3998
3999 if (tb[NL80211_STA_WME_MAX_SP])
4000 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4001
4002 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4003 return -EINVAL;
4004
4005 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4006
4007 return 0;
4008}
4009
c01fc9ad
SD		 4010static int nl80211_parse_sta_channel_info(struct genl_info *info,
4011 struct station_parameters *params)
4012{
4013 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4014 params->supported_channels =
4015 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4016 params->supported_channels_len =
4017 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4018 /*
4019 * Need to include at least one (first channel, number of
4020 * channels) tuple for each subband, and must have proper
4021 * tuples for the rest of the data as well.
4022 */
4023 if (params->supported_channels_len < 2)
4024 return -EINVAL;
4025 if (params->supported_channels_len % 2)
4026 return -EINVAL;
4027 }
4028
4029 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4030 params->supported_oper_classes =
4031 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4032 params->supported_oper_classes_len =
4033 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4034 /*
4035 * The value of the Length field of the Supported Operating
4036 * Classes element is between 2 and 253.
4037 */
4038 if (params->supported_oper_classes_len < 2 ||
4039 params->supported_oper_classes_len > 253)
4040 return -EINVAL;
4041 }
4042 return 0;
4043}
4044
ff276691
JB		 4045static int nl80211_set_station_tdls(struct genl_info *info,
4046 struct station_parameters *params)
4047{
c01fc9ad 4048 int err;
ff276691 4049 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4050 if (info->attrs[NL80211_ATTR_PEER_AID])
4051 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4052 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4053 params->ht_capa =
4054 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4055 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4056 params->vht_capa =
4057 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4058
c01fc9ad
SD		 4059 err = nl80211_parse_sta_channel_info(info, params);
4060 if (err)
4061 return err;
4062
ff276691
JB		 4063 return nl80211_parse_sta_wme(info, params);
4064}
4065
5727ef1b
JB		 4066static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4067{
4c476991 4068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4069 struct net_device *dev = info->user_ptr[1];
5727ef1b 4070 struct station_parameters params;
77ee7c89
JB		 4071 u8 *mac_addr;
4072 int err;
5727ef1b
JB		 4073
4074 memset(&params, 0, sizeof(params));
4075
4076 params.listen_interval = -1;
4077
77ee7c89
JB		 4078 if (!rdev->ops->change_station)
4079 return -EOPNOTSUPP;
4080
5727ef1b
JB		 4081 if (info->attrs[NL80211_ATTR_STA_AID])
4082 return -EINVAL;
4083
4084 if (!info->attrs[NL80211_ATTR_MAC])
4085 return -EINVAL;
4086
4087 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4088
4089 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4090 params.supported_rates =
4091 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4092 params.supported_rates_len =
4093 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4094 }
4095
9d62a986
JM		 4096 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4097 params.capability =
4098 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4099 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4100 }
4101
4102 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4103 params.ext_capab =
4104 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4105 params.ext_capab_len =
4106 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4107 }
4108
df881293 4109 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4110 return -EINVAL;
36aedc90 4111
bdd3ae3d 4112 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4113 return -EINVAL;
4114
f8bacc21 4115 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4116 params.plink_action =
f8bacc21
JB		 4117 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4118 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4119 return -EINVAL;
4120 }
2ec600d6 4121
f8bacc21 4122 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4123 params.plink_state =
f8bacc21
JB		 4124 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4125 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4126 return -EINVAL;
4127 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4128 }
9c3990aa 4129
3b1c5a53
MP		 4130 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4131 enum nl80211_mesh_power_mode pm = nla_get_u32(
4132 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4133
4134 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4135 pm > NL80211_MESH_POWER_MAX)
4136 return -EINVAL;
4137
4138 params.local_pm = pm;
4139 }
4140
77ee7c89
JB		 4141 /* Include parameters for TDLS peer (will check later) */
4142 err = nl80211_set_station_tdls(info, &params);
4143 if (err)
4144 return err;
4145
4146 params.vlan = get_vlan(info, rdev);
4147 if (IS_ERR(params.vlan))
4148 return PTR_ERR(params.vlan);
4149
a97f4424
JB		 4150 switch (dev->ieee80211_ptr->iftype) {
4151 case NL80211_IFTYPE_AP:
4152 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4153 case NL80211_IFTYPE_P2P_GO:
074ac8df 4154 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4155 case NL80211_IFTYPE_STATION:
267335d6 4156 case NL80211_IFTYPE_ADHOC:
a97f4424 4157 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4158 break;
4159 default:
77ee7c89
JB		 4160 err = -EOPNOTSUPP;
4161 goto out_put_vlan;
034d655e
JB		 4162 }
4163
77ee7c89 4164 /* driver will call cfg80211_check_station_change() */
e35e4d28 4165 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4166
77ee7c89 4167 out_put_vlan:
5727ef1b
JB		 4168 if (params.vlan)
4169 dev_put(params.vlan);
3b85875a 4170
5727ef1b
JB		 4171 return err;
4172}
4173
4174static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4175{
4c476991 4176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4177 int err;
4c476991 4178 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4179 struct station_parameters params;
4180 u8 *mac_addr = NULL;
4181
4182 memset(&params, 0, sizeof(params));
4183
984c311b
JB		 4184 if (!rdev->ops->add_station)
4185 return -EOPNOTSUPP;
4186
5727ef1b
JB		 4187 if (!info->attrs[NL80211_ATTR_MAC])
4188 return -EINVAL;
4189
5727ef1b
JB		 4190 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4191 return -EINVAL;
4192
4193 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4194 return -EINVAL;
4195
5e4b6f56
JM		 4196 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4197 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4198 return -EINVAL;
4199
5727ef1b
JB		 4200 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4201 params.supported_rates =
4202 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4203 params.supported_rates_len =
4204 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4205 params.listen_interval =
4206 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4207
3d124ea2 4208 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4209 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4210 else
4211 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4212 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4213 return -EINVAL;
51b50fbe 4214
9d62a986
JM		 4215 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4216 params.capability =
4217 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4218 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4219 }
4220
4221 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4222 params.ext_capab =
4223 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4224 params.ext_capab_len =
4225 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4226 }
4227
36aedc90
JM		 4228 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4229 params.ht_capa =
4230 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4231
f461be3e
MP		 4232 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4233 params.vht_capa =
4234 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4235
60f4a7b1
MK		 4236 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4237 params.opmode_notif_used = true;
4238 params.opmode_notif =
4239 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4240 }
4241
f8bacc21 4242 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4243 params.plink_action =
f8bacc21
JB		 4244 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4245 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4246 return -EINVAL;
4247 }
96b78dff 4248
c01fc9ad
SD		 4249 err = nl80211_parse_sta_channel_info(info, &params);
4250 if (err)
4251 return err;
4252
ff276691
JB		 4253 err = nl80211_parse_sta_wme(info, &params);
4254 if (err)
4255 return err;
bdd90d5e 4256
bdd3ae3d 4257 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4258 return -EINVAL;
4259
77ee7c89
JB		 4260 /* When you run into this, adjust the code below for the new flag */
4261 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4262
bdd90d5e
JB		 4263 switch (dev->ieee80211_ptr->iftype) {
4264 case NL80211_IFTYPE_AP:
4265 case NL80211_IFTYPE_AP_VLAN:
4266 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4267 /* ignore WME attributes if iface/sta is not capable */
4268 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4269 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4270 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4271
bdd90d5e 4272 /* TDLS peers cannot be added */
3d124ea2
JM		 4273 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4274 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4275 return -EINVAL;
bdd90d5e
JB		 4276 /* but don't bother the driver with it */
4277 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4278
d582cffb
JB		 4279 /* allow authenticated/associated only if driver handles it */
4280 if (!(rdev->wiphy.features &
4281 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4282 params.sta_flags_mask &
4283 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4284 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4285 return -EINVAL;
4286
bdd90d5e
JB		 4287 /* must be last in here for error handling */
4288 params.vlan = get_vlan(info, rdev);
4289 if (IS_ERR(params.vlan))
4290 return PTR_ERR(params.vlan);
4291 break;
4292 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4293 /* ignore uAPSD data */
4294 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4295
d582cffb
JB		 4296 /* associated is disallowed */
4297 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4298 return -EINVAL;
bdd90d5e 4299 /* TDLS peers cannot be added */
3d124ea2
JM		 4300 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4301 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4302 return -EINVAL;
4303 break;
4304 case NL80211_IFTYPE_STATION:
93d08f0b 4305 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4306 /* ignore uAPSD data */
4307 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4308
77ee7c89
JB		 4309 /* these are disallowed */
4310 if (params.sta_flags_mask &
4311 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4312 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4313 return -EINVAL;
bdd90d5e
JB		 4314 /* Only TDLS peers can be added */
4315 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4316 return -EINVAL;
4317 /* Can only add if TDLS ... */
4318 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4319 return -EOPNOTSUPP;
4320 /* ... with external setup is supported */
4321 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4322 return -EOPNOTSUPP;
77ee7c89
JB		 4323 /*
4324 * Older wpa_supplicant versions always mark the TDLS peer
4325 * as authorized, but it shouldn't yet be.
4326 */
4327 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4328 break;
4329 default:
4330 return -EOPNOTSUPP;
c75786c9
EP		 4331 }
4332
bdd90d5e 4333 /* be aware of params.vlan when changing code here */
5727ef1b 4334
e35e4d28 4335 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4336
5727ef1b
JB		 4337 if (params.vlan)
4338 dev_put(params.vlan);
5727ef1b
JB		 4339 return err;
4340}
4341
4342static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4343{
4c476991
JB		 4344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4345 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4346 u8 *mac_addr = NULL;
4347
4348 if (info->attrs[NL80211_ATTR_MAC])
4349 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4350
e80cf853 4351 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4352 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4353 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4354 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4355 return -EINVAL;
5727ef1b 4356
4c476991
JB		 4357 if (!rdev->ops->del_station)
4358 return -EOPNOTSUPP;
3b85875a 4359
e35e4d28 4360 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4361}
4362
15e47304 4363static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4364 int flags, struct net_device *dev,
4365 u8 *dst, u8 *next_hop,
4366 struct mpath_info *pinfo)
4367{
4368 void *hdr;
4369 struct nlattr *pinfoattr;
4370
15e47304 4371 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4372 if (!hdr)
4373 return -1;
4374
9360ffd1
DM		 4375 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4376 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4377 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4378 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4379 goto nla_put_failure;
f5ea9120 4380
2ec600d6
LCC		 4381 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4382 if (!pinfoattr)
4383 goto nla_put_failure;
9360ffd1
DM		 4384 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4385 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4386 pinfo->frame_qlen))
4387 goto nla_put_failure;
4388 if (((pinfo->filled & MPATH_INFO_SN) &&
4389 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4390 ((pinfo->filled & MPATH_INFO_METRIC) &&
4391 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4392 pinfo->metric)) ||
4393 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4394 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4395 pinfo->exptime)) ||
4396 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4397 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4398 pinfo->flags)) ||
4399 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4400 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4401 pinfo->discovery_timeout)) ||
4402 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4403 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4404 pinfo->discovery_retries)))
4405 goto nla_put_failure;
2ec600d6
LCC		 4406
4407 nla_nest_end(msg, pinfoattr);
4408
4409 return genlmsg_end(msg, hdr);
4410
4411 nla_put_failure:
bc3ed28c
TG		 4412 genlmsg_cancel(msg, hdr);
4413 return -EMSGSIZE;
2ec600d6
LCC		 4414}
4415
4416static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4417 struct netlink_callback *cb)
2ec600d6 4418{
2ec600d6 4419 struct mpath_info pinfo;
1b8ec87a 4420 struct cfg80211_registered_device *rdev;
97990a06 4421 struct wireless_dev *wdev;
2ec600d6
LCC		 4422 u8 dst[ETH_ALEN];
4423 u8 next_hop[ETH_ALEN];
97990a06 4424 int path_idx = cb->args[2];
2ec600d6 4425 int err;
2ec600d6 4426
1b8ec87a 4427 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4428 if (err)
4429 return err;
bba95fef 4430
1b8ec87a 4431 if (!rdev->ops->dump_mpath) {
eec60b03 4432 err = -EOPNOTSUPP;
bba95fef
JB		 4433 goto out_err;
4434 }
4435
97990a06 4436 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4437 err = -EOPNOTSUPP;
0448b5fc 4438 goto out_err;
eec60b03
JM		 4439 }
4440
bba95fef 4441 while (1) {
1b8ec87a 4442 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4443 next_hop, &pinfo);
bba95fef 4444 if (err == -ENOENT)
2ec600d6 4445 break;
bba95fef 4446 if (err)
3b85875a 4447 goto out_err;
2ec600d6 4448
15e47304 4449 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4450 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4451 wdev->netdev, dst, next_hop,
bba95fef
JB		 4452 &pinfo) < 0)
4453 goto out;
2ec600d6 4454
bba95fef 4455 path_idx++;
2ec600d6 4456 }
2ec600d6 4457
2ec600d6 4458
bba95fef 4459 out:
97990a06 4460 cb->args[2] = path_idx;
bba95fef 4461 err = skb->len;
bba95fef 4462 out_err:
1b8ec87a 4463 nl80211_finish_wdev_dump(rdev);
bba95fef 4464 return err;
2ec600d6
LCC		 4465}
4466
4467static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4468{
4c476991 4469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4470 int err;
4c476991 4471 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4472 struct mpath_info pinfo;
4473 struct sk_buff *msg;
4474 u8 *dst = NULL;
4475 u8 next_hop[ETH_ALEN];
4476
4477 memset(&pinfo, 0, sizeof(pinfo));
4478
4479 if (!info->attrs[NL80211_ATTR_MAC])
4480 return -EINVAL;
4481
4482 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4483
4c476991
JB		 4484 if (!rdev->ops->get_mpath)
4485 return -EOPNOTSUPP;
2ec600d6 4486
4c476991
JB		 4487 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4488 return -EOPNOTSUPP;
eec60b03 4489
e35e4d28 4490 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4491 if (err)
4c476991 4492 return err;
2ec600d6 4493
fd2120ca 4494 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4495 if (!msg)
4c476991 4496 return -ENOMEM;
2ec600d6 4497
15e47304 4498 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4499 dev, dst, next_hop, &pinfo) < 0) {
4500 nlmsg_free(msg);
4501 return -ENOBUFS;
4502 }
3b85875a 4503
4c476991 4504 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4505}
4506
4507static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4508{
4c476991
JB		 4509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4510 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4511 u8 *dst = NULL;
4512 u8 *next_hop = NULL;
4513
4514 if (!info->attrs[NL80211_ATTR_MAC])
4515 return -EINVAL;
4516
4517 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4518 return -EINVAL;
4519
4520 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4521 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4522
4c476991
JB		 4523 if (!rdev->ops->change_mpath)
4524 return -EOPNOTSUPP;
35a8efe1 4525
4c476991
JB		 4526 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4527 return -EOPNOTSUPP;
2ec600d6 4528
e35e4d28 4529 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4530}
4c476991 4531
2ec600d6
LCC		 4532static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4533{
4c476991
JB		 4534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4535 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4536 u8 *dst = NULL;
4537 u8 *next_hop = NULL;
4538
4539 if (!info->attrs[NL80211_ATTR_MAC])
4540 return -EINVAL;
4541
4542 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4543 return -EINVAL;
4544
4545 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4546 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4547
4c476991
JB		 4548 if (!rdev->ops->add_mpath)
4549 return -EOPNOTSUPP;
35a8efe1 4550
4c476991
JB		 4551 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4552 return -EOPNOTSUPP;
2ec600d6 4553
e35e4d28 4554 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4555}
4556
4557static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4558{
4c476991
JB		 4559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4560 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4561 u8 *dst = NULL;
4562
4563 if (info->attrs[NL80211_ATTR_MAC])
4564 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4565
4c476991
JB		 4566 if (!rdev->ops->del_mpath)
4567 return -EOPNOTSUPP;
3b85875a 4568
e35e4d28 4569 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4570}
4571
9f1ba906
JM		 4572static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4573{
4c476991
JB		 4574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4575 struct net_device *dev = info->user_ptr[1];
c56589ed 4576 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4577 struct bss_parameters params;
c56589ed 4578 int err;
9f1ba906
JM		 4579
4580 memset(&params, 0, sizeof(params));
4581 /* default to not changing parameters */
4582 params.use_cts_prot = -1;
4583 params.use_short_preamble = -1;
4584 params.use_short_slot_time = -1;
fd8aaaf3 4585 params.ap_isolate = -1;
50b12f59 4586 params.ht_opmode = -1;
53cabad7
JB		 4587 params.p2p_ctwindow = -1;
4588 params.p2p_opp_ps = -1;
9f1ba906
JM		 4589
4590 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4591 params.use_cts_prot =
4592 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4593 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4594 params.use_short_preamble =
4595 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4596 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4597 params.use_short_slot_time =
4598 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4599 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4600 params.basic_rates =
4601 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4602 params.basic_rates_len =
4603 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4604 }
fd8aaaf3
FF		 4605 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4606 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4607 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4608 params.ht_opmode =
4609 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4610
53cabad7
JB		 4611 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4612 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4613 return -EINVAL;
4614 params.p2p_ctwindow =
4615 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4616 if (params.p2p_ctwindow < 0)
4617 return -EINVAL;
4618 if (params.p2p_ctwindow != 0 &&
4619 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4620 return -EINVAL;
4621 }
4622
4623 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4624 u8 tmp;
4625
4626 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4627 return -EINVAL;
4628 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4629 if (tmp > 1)
4630 return -EINVAL;
4631 params.p2p_opp_ps = tmp;
4632 if (params.p2p_opp_ps &&
4633 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4634 return -EINVAL;
4635 }
4636
4c476991
JB		 4637 if (!rdev->ops->change_bss)
4638 return -EOPNOTSUPP;
9f1ba906 4639
074ac8df 4640 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4641 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4642 return -EOPNOTSUPP;
3b85875a 4643
c56589ed
SW		 4644 wdev_lock(wdev);
4645 err = rdev_change_bss(rdev, dev, &params);
4646 wdev_unlock(wdev);
4647
4648 return err;
9f1ba906
JM		 4649}
4650
b54452b0 4651static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4652 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4653 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4654 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4655 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4656 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4657 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4658 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4659};
4660
4661static int parse_reg_rule(struct nlattr *tb[],
4662 struct ieee80211_reg_rule *reg_rule)
4663{
4664 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4665 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4666
4667 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4668 return -EINVAL;
4669 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4670 return -EINVAL;
4671 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4672 return -EINVAL;
b0dfd2ea
JD		 4673 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4674 return -EINVAL;
b2e1b302
LR		 4675 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4676 return -EINVAL;
4677
4678 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4679
4680 freq_range->start_freq_khz =
4681 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4682 freq_range->end_freq_khz =
4683 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4684 freq_range->max_bandwidth_khz =
4685 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4686
4687 power_rule->max_eirp =
4688 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4689
4690 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4691 power_rule->max_antenna_gain =
4692 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4693
089027e5
JD		 4694 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4695 reg_rule->dfs_cac_ms =
4696 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4697
b2e1b302
LR		 4698 return 0;
4699}
4700
4701static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4702{
b2e1b302 4703 char *data = NULL;
57b5ce07 4704 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4705
80778f18
LR		 4706 /*
4707 * You should only get this when cfg80211 hasn't yet initialized
4708 * completely when built-in to the kernel right between the time
4709 * window between nl80211_init() and regulatory_init(), if that is
4710 * even possible.
4711 */
458f4f9e 4712 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4713 return -EINPROGRESS;
80778f18 4714
57b5ce07
LR		 4715 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4716 user_reg_hint_type =
4717 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4718 else
4719 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4720
4721 switch (user_reg_hint_type) {
4722 case NL80211_USER_REG_HINT_USER:
4723 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4724 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4725 return -EINVAL;
4726
4727 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4728 return regulatory_hint_user(data, user_reg_hint_type);
4729 case NL80211_USER_REG_HINT_INDOOR:
4730 return regulatory_hint_indoor_user();
57b5ce07
LR		 4731 default:
4732 return -EINVAL;
4733 }
b2e1b302
LR		 4734}
4735
24bdd9f4 4736static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4737 struct genl_info *info)
93da9cc1 4738{
4c476991 4739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4740 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4741 struct wireless_dev *wdev = dev->ieee80211_ptr;
4742 struct mesh_config cur_params;
4743 int err = 0;
93da9cc1 4744 void *hdr;
4745 struct nlattr *pinfoattr;
4746 struct sk_buff *msg;
4747
29cbe68c
JB		 4748 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4749 return -EOPNOTSUPP;
4750
24bdd9f4 4751 if (!rdev->ops->get_mesh_config)
4c476991 4752 return -EOPNOTSUPP;
f3f92586 4753
29cbe68c
JB		 4754 wdev_lock(wdev);
4755 /* If not connected, get default parameters */
4756 if (!wdev->mesh_id_len)
4757 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4758 else
e35e4d28 4759 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4760 wdev_unlock(wdev);
4761
93da9cc1 4762 if (err)
4c476991 4763 return err;
93da9cc1 4764
4765 /* Draw up a netlink message to send back */
fd2120ca 4766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4767 if (!msg)
4768 return -ENOMEM;
15e47304 4769 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4770 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4771 if (!hdr)
efe1cf0c 4772 goto out;
24bdd9f4 4773 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4774 if (!pinfoattr)
4775 goto nla_put_failure;
9360ffd1
DM		 4776 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4777 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4778 cur_params.dot11MeshRetryTimeout) ||
4779 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4780 cur_params.dot11MeshConfirmTimeout) ||
4781 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4782 cur_params.dot11MeshHoldingTimeout) ||
4783 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4784 cur_params.dot11MeshMaxPeerLinks) ||
4785 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4786 cur_params.dot11MeshMaxRetries) ||
4787 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4788 cur_params.dot11MeshTTL) ||
4789 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4790 cur_params.element_ttl) ||
4791 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4792 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4793 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4794 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4795 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4796 cur_params.dot11MeshHWMPmaxPREQretries) ||
4797 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4798 cur_params.path_refresh_time) ||
4799 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4800 cur_params.min_discovery_timeout) ||
4801 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4802 cur_params.dot11MeshHWMPactivePathTimeout) ||
4803 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4804 cur_params.dot11MeshHWMPpreqMinInterval) ||
4805 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4806 cur_params.dot11MeshHWMPperrMinInterval) ||
4807 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4808 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4809 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4810 cur_params.dot11MeshHWMPRootMode) ||
4811 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4812 cur_params.dot11MeshHWMPRannInterval) ||
4813 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4814 cur_params.dot11MeshGateAnnouncementProtocol) ||
4815 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4816 cur_params.dot11MeshForwarding) ||
4817 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4818 cur_params.rssi_threshold) ||
4819 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4820 cur_params.ht_opmode) ||
4821 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4822 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4823 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4824 cur_params.dot11MeshHWMProotInterval) ||
4825 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4826 cur_params.dot11MeshHWMPconfirmationInterval) ||
4827 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4828 cur_params.power_mode) ||
4829 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4830 cur_params.dot11MeshAwakeWindowDuration) ||
4831 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4832 cur_params.plink_timeout))
9360ffd1 4833 goto nla_put_failure;
93da9cc1 4834 nla_nest_end(msg, pinfoattr);
4835 genlmsg_end(msg, hdr);
4c476991 4836 return genlmsg_reply(msg, info);
93da9cc1 4837
3b85875a 4838 nla_put_failure:
93da9cc1 4839 genlmsg_cancel(msg, hdr);
efe1cf0c 4840 out:
d080e275 4841 nlmsg_free(msg);
4c476991 4842 return -ENOBUFS;
93da9cc1 4843}
4844
b54452b0 4845static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4846 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4847 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4848 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4849 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4850 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4851 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4852 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4853 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4854 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4855 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4856 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4857 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4858 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4859 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4860 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4861 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4862 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4863 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4864 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4865 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4866 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4867 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4868 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4869 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4870 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4871 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4872 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4873 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4874};
4875
c80d545d
JC		 4876static const struct nla_policy
4877 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4878 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4879 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4880 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4881 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4882 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4883 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4884 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4885 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4886 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4887};
4888
24bdd9f4 4889static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4890 struct mesh_config *cfg,
4891 u32 *mask_out)
93da9cc1 4892{
93da9cc1 4893 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4894 u32 mask = 0;
93da9cc1 4895
ea54fba2
MP		 4896#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4897do { \
4898 if (tb[attr]) { \
4899 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4900 return -EINVAL; \
4901 cfg->param = fn(tb[attr]); \
4902 mask |= (1 << (attr - 1)); \
4903 } \
4904} while (0)
bd90fdcc
JB		 4905
4906
24bdd9f4 4907 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4908 return -EINVAL;
4909 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4910 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4911 nl80211_meshconf_params_policy))
93da9cc1 4912 return -EINVAL;
4913
93da9cc1 4914 /* This makes sure that there aren't more than 32 mesh config
4915 * parameters (otherwise our bitfield scheme would not work.) */
4916 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4917
4918 /* Fill in the params struct */
ea54fba2 4919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4920 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4921 nla_get_u16);
ea54fba2 4922 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4923 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4924 nla_get_u16);
ea54fba2 4925 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4926 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4927 nla_get_u16);
ea54fba2 4928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4929 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4930 nla_get_u16);
ea54fba2 4931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4932 mask, NL80211_MESHCONF_MAX_RETRIES,
4933 nla_get_u8);
ea54fba2 4934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4935 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4937 mask, NL80211_MESHCONF_ELEMENT_TTL,
4938 nla_get_u8);
ea54fba2 4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4940 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4941 nla_get_u8);
ea54fba2
MP		 4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4943 1, 255, mask,
a4f606ea
CYY		 4944 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4945 nla_get_u32);
ea54fba2 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4947 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4948 nla_get_u8);
ea54fba2 4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4950 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4951 nla_get_u32);
ea54fba2 4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4953 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4954 nla_get_u16);
ea54fba2
MP		 4955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4956 1, 65535, mask,
a4f606ea
CYY		 4957 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4958 nla_get_u32);
93da9cc1 4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4960 1, 65535, mask,
4961 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4962 nla_get_u16);
dca7e943 4963 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4964 1, 65535, mask,
4965 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4966 nla_get_u16);
93da9cc1 4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4968 dot11MeshHWMPnetDiameterTraversalTime,
4969 1, 65535, mask,
a4f606ea
CYY		 4970 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4971 nla_get_u16);
ea54fba2
MP		 4972 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4973 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4974 nla_get_u8);
4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4976 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4977 nla_get_u16);
63c5723b 4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4979 dot11MeshGateAnnouncementProtocol, 0, 1,
4980 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4981 nla_get_u8);
ea54fba2 4982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4983 mask, NL80211_MESHCONF_FORWARDING,
4984 nla_get_u8);
83374fe9 4985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4986 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4987 nla_get_s32);
ea54fba2 4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4989 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4990 nla_get_u16);
4991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4992 1, 65535, mask,
ac1073a6
CYY		 4993 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4994 nla_get_u32);
ea54fba2 4995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4996 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4997 nla_get_u16);
4998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4999 dot11MeshHWMPconfirmationInterval,
5000 1, 65535, mask,
728b19e5 5001 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5002 nla_get_u16);
3b1c5a53
MP		 5003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5004 NL80211_MESH_POWER_ACTIVE,
5005 NL80211_MESH_POWER_MAX,
5006 mask, NL80211_MESHCONF_POWER_MODE,
5007 nla_get_u32);
5008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5009 0, 65535, mask,
5010 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5012 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5013 nla_get_u32);
bd90fdcc
JB		 5014 if (mask_out)
5015 *mask_out = mask;
c80d545d 5016
bd90fdcc
JB		 5017 return 0;
5018
5019#undef FILL_IN_MESH_PARAM_IF_SET
5020}
5021
c80d545d
JC		 5022static int nl80211_parse_mesh_setup(struct genl_info *info,
5023 struct mesh_setup *setup)
5024{
bb2798d4 5025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5026 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5027
5028 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5029 return -EINVAL;
5030 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5031 info->attrs[NL80211_ATTR_MESH_SETUP],
5032 nl80211_mesh_setup_params_policy))
5033 return -EINVAL;
5034
d299a1f2
JC		 5035 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5036 setup->sync_method =
5037 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5038 IEEE80211_SYNC_METHOD_VENDOR :
5039 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5040
c80d545d
JC		 5041 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5042 setup->path_sel_proto =
5043 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5044 IEEE80211_PATH_PROTOCOL_VENDOR :
5045 IEEE80211_PATH_PROTOCOL_HWMP;
5046
5047 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5048 setup->path_metric =
5049 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5050 IEEE80211_PATH_METRIC_VENDOR :
5051 IEEE80211_PATH_METRIC_AIRTIME;
5052
581a8b0f
JC		 5053
5054 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5055 struct nlattr *ieattr =
581a8b0f 5056 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5057 if (!is_valid_ie_attr(ieattr))
5058 return -EINVAL;
581a8b0f
JC		 5059 setup->ie = nla_data(ieattr);
5060 setup->ie_len = nla_len(ieattr);
c80d545d 5061 }
bb2798d4
TP		 5062 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5063 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5064 return -EINVAL;
5065 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5066 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5067 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5068 if (setup->is_secure)
5069 setup->user_mpm = true;
c80d545d 5070
6e16d90b
CT		 5071 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5072 if (!setup->user_mpm)
5073 return -EINVAL;
5074 setup->auth_id =
5075 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5076 }
5077
c80d545d
JC		 5078 return 0;
5079}
5080
24bdd9f4 5081static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5082 struct genl_info *info)
bd90fdcc
JB		 5083{
5084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5085 struct net_device *dev = info->user_ptr[1];
29cbe68c 5086 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5087 struct mesh_config cfg;
5088 u32 mask;
5089 int err;
5090
29cbe68c
JB		 5091 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5092 return -EOPNOTSUPP;
5093
24bdd9f4 5094 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5095 return -EOPNOTSUPP;
5096
24bdd9f4 5097 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5098 if (err)
5099 return err;
5100
29cbe68c
JB		 5101 wdev_lock(wdev);
5102 if (!wdev->mesh_id_len)
5103 err = -ENOLINK;
5104
5105 if (!err)
e35e4d28 5106 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5107
5108 wdev_unlock(wdev);
5109
5110 return err;
93da9cc1 5111}
5112
f130347c
LR		 5113static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5114{
458f4f9e 5115 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5116 struct sk_buff *msg;
5117 void *hdr = NULL;
5118 struct nlattr *nl_reg_rules;
5119 unsigned int i;
f130347c
LR		 5120
5121 if (!cfg80211_regdomain)
5fe231e8 5122 return -EINVAL;
f130347c 5123
fd2120ca 5124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5125 if (!msg)
5126 return -ENOBUFS;
f130347c 5127
15e47304 5128 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5129 NL80211_CMD_GET_REG);
5130 if (!hdr)
efe1cf0c 5131 goto put_failure;
f130347c 5132
57b5ce07
LR		 5133 if (reg_last_request_cell_base() &&
5134 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5135 NL80211_USER_REG_HINT_CELL_BASE))
5136 goto nla_put_failure;
5137
458f4f9e
JB		 5138 rcu_read_lock();
5139 regdom = rcu_dereference(cfg80211_regdomain);
5140
5141 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5142 (regdom->dfs_region &&
5143 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5144 goto nla_put_failure_rcu;
5145
f130347c
LR		 5146 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5147 if (!nl_reg_rules)
458f4f9e 5148 goto nla_put_failure_rcu;
f130347c 5149
458f4f9e 5150 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5151 struct nlattr *nl_reg_rule;
5152 const struct ieee80211_reg_rule *reg_rule;
5153 const struct ieee80211_freq_range *freq_range;
5154 const struct ieee80211_power_rule *power_rule;
97524820 5155 unsigned int max_bandwidth_khz;
f130347c 5156
458f4f9e 5157 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5158 freq_range = &reg_rule->freq_range;
5159 power_rule = &reg_rule->power_rule;
5160
5161 nl_reg_rule = nla_nest_start(msg, i);
5162 if (!nl_reg_rule)
458f4f9e 5163 goto nla_put_failure_rcu;
f130347c 5164
97524820
JD		 5165 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5166 if (!max_bandwidth_khz)
5167 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5168 reg_rule);
5169
9360ffd1
DM		 5170 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5171 reg_rule->flags) ||
5172 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5173 freq_range->start_freq_khz) ||
5174 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5175 freq_range->end_freq_khz) ||
5176 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5177 max_bandwidth_khz) ||
9360ffd1
DM		 5178 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5179 power_rule->max_antenna_gain) ||
5180 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5181 power_rule->max_eirp) ||
5182 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5183 reg_rule->dfs_cac_ms))
458f4f9e 5184 goto nla_put_failure_rcu;
f130347c
LR		 5185
5186 nla_nest_end(msg, nl_reg_rule);
5187 }
458f4f9e 5188 rcu_read_unlock();
f130347c
LR		 5189
5190 nla_nest_end(msg, nl_reg_rules);
5191
5192 genlmsg_end(msg, hdr);
5fe231e8 5193 return genlmsg_reply(msg, info);
f130347c 5194
458f4f9e
JB		 5195nla_put_failure_rcu:
5196 rcu_read_unlock();
f130347c
LR		 5197nla_put_failure:
5198 genlmsg_cancel(msg, hdr);
efe1cf0c 5199put_failure:
d080e275 5200 nlmsg_free(msg);
5fe231e8 5201 return -EMSGSIZE;
f130347c
LR		 5202}
5203
b2e1b302
LR		 5204static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5205{
5206 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5207 struct nlattr *nl_reg_rule;
5208 char *alpha2 = NULL;
5209 int rem_reg_rules = 0, r = 0;
5210 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5211 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5212 struct ieee80211_regdomain *rd = NULL;
5213
5214 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5215 return -EINVAL;
5216
5217 if (!info->attrs[NL80211_ATTR_REG_RULES])
5218 return -EINVAL;
5219
5220 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5221
8b60b078
LR		 5222 if (info->attrs[NL80211_ATTR_DFS_REGION])
5223 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5224
b2e1b302 5225 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5226 rem_reg_rules) {
b2e1b302
LR		 5227 num_rules++;
5228 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5229 return -EINVAL;
b2e1b302
LR		 5230 }
5231
e438768f
LR		 5232 if (!reg_is_valid_request(alpha2))
5233 return -EINVAL;
5234
b2e1b302 5235 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5236 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5237
5238 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5239 if (!rd)
5240 return -ENOMEM;
b2e1b302
LR		 5241
5242 rd->n_reg_rules = num_rules;
5243 rd->alpha2[0] = alpha2[0];
5244 rd->alpha2[1] = alpha2[1];
5245
8b60b078
LR		 5246 /*
5247 * Disable DFS master mode if the DFS region was
5248 * not supported or known on this kernel.
5249 */
5250 if (reg_supported_dfs_region(dfs_region))
5251 rd->dfs_region = dfs_region;
5252
b2e1b302 5253 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5254 rem_reg_rules) {
ae811e21
JB		 5255 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5256 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5257 reg_rule_policy);
5258 if (r)
5259 goto bad_reg;
b2e1b302
LR		 5260 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5261 if (r)
5262 goto bad_reg;
5263
5264 rule_idx++;
5265
d0e18f83
LR		 5266 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5267 r = -EINVAL;
b2e1b302 5268 goto bad_reg;
d0e18f83 5269 }
b2e1b302
LR		 5270 }
5271
b2e1b302 5272 r = set_regdom(rd);
6913b49a 5273 /* set_regdom took ownership */
1a919318 5274 rd = NULL;
b2e1b302 5275
d2372b31 5276 bad_reg:
b2e1b302 5277 kfree(rd);
d0e18f83 5278 return r;
b2e1b302
LR		 5279}
5280
83f5e2cf
JB		 5281static int validate_scan_freqs(struct nlattr *freqs)
5282{
5283 struct nlattr *attr1, *attr2;
5284 int n_channels = 0, tmp1, tmp2;
5285
5286 nla_for_each_nested(attr1, freqs, tmp1) {
5287 n_channels++;
5288 /*
5289 * Some hardware has a limited channel list for
5290 * scanning, and it is pretty much nonsensical
5291 * to scan for a channel twice, so disallow that
5292 * and don't require drivers to check that the
5293 * channel list they get isn't longer than what
5294 * they can scan, as long as they can scan all
5295 * the channels they registered at once.
5296 */
5297 nla_for_each_nested(attr2, freqs, tmp2)
5298 if (attr1 != attr2 &&
5299 nla_get_u32(attr1) == nla_get_u32(attr2))
5300 return 0;
5301 }
5302
5303 return n_channels;
5304}
5305
2a519311
JB		 5306static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5307{
4c476991 5308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5309 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5310 struct cfg80211_scan_request *request;
2a519311
JB		 5311 struct nlattr *attr;
5312 struct wiphy *wiphy;
83f5e2cf 5313 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5314 size_t ie_len;
2a519311 5315
f4a11bb0
JB		 5316 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5317 return -EINVAL;
5318
79c97e97 5319 wiphy = &rdev->wiphy;
2a519311 5320
4c476991
JB		 5321 if (!rdev->ops->scan)
5322 return -EOPNOTSUPP;
2a519311 5323
f9d15d16 5324 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5325 err = -EBUSY;
5326 goto unlock;
5327 }
2a519311
JB		 5328
5329 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5330 n_channels = validate_scan_freqs(
5331 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5332 if (!n_channels) {
5333 err = -EINVAL;
5334 goto unlock;
5335 }
2a519311 5336 } else {
bdfbec2d 5337 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5338 }
5339
5340 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5341 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5342 n_ssids++;
5343
f9f47529
JB		 5344 if (n_ssids > wiphy->max_scan_ssids) {
5345 err = -EINVAL;
5346 goto unlock;
5347 }
2a519311 5348
70692ad2
JM		 5349 if (info->attrs[NL80211_ATTR_IE])
5350 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5351 else
5352 ie_len = 0;
5353
f9f47529
JB		 5354 if (ie_len > wiphy->max_scan_ie_len) {
5355 err = -EINVAL;
5356 goto unlock;
5357 }
18a83659 5358
2a519311 5359 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5360 + sizeof(*request->ssids) * n_ssids
5361 + sizeof(*request->channels) * n_channels
70692ad2 5362 + ie_len, GFP_KERNEL);
f9f47529
JB		 5363 if (!request) {
5364 err = -ENOMEM;
5365 goto unlock;
5366 }
2a519311 5367
2a519311 5368 if (n_ssids)
5ba63533 5369 request->ssids = (void *)&request->channels[n_channels];
2a519311 5370 request->n_ssids = n_ssids;
70692ad2
JM		 5371 if (ie_len) {
5372 if (request->ssids)
5373 request->ie = (void *)(request->ssids + n_ssids);
5374 else
5375 request->ie = (void *)(request->channels + n_channels);
5376 }
2a519311 5377
584991dc 5378 i = 0;
2a519311
JB		 5379 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5380 /* user specified, bail out if channel not found */
2a519311 5381 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5382 struct ieee80211_channel *chan;
5383
5384 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5385
5386 if (!chan) {
2a519311
JB		 5387 err = -EINVAL;
5388 goto out_free;
5389 }
584991dc
JB		 5390
5391 /* ignore disabled channels */
5392 if (chan->flags & IEEE80211_CHAN_DISABLED)
5393 continue;
5394
5395 request->channels[i] = chan;
2a519311
JB		 5396 i++;
5397 }
5398 } else {
34850ab2
JB		 5399 enum ieee80211_band band;
5400
2a519311 5401 /* all channels */
2a519311
JB		 5402 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5403 int j;
5404 if (!wiphy->bands[band])
5405 continue;
5406 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5407 struct ieee80211_channel *chan;
5408
5409 chan = &wiphy->bands[band]->channels[j];
5410
5411 if (chan->flags & IEEE80211_CHAN_DISABLED)
5412 continue;
5413
5414 request->channels[i] = chan;
2a519311
JB		 5415 i++;
5416 }
5417 }
5418 }
5419
584991dc
JB		 5420 if (!i) {
5421 err = -EINVAL;
5422 goto out_free;
5423 }
5424
5425 request->n_channels = i;
5426
2a519311
JB		 5427 i = 0;
5428 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5429 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5430 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5431 err = -EINVAL;
5432 goto out_free;
5433 }
57a27e1d 5434 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5435 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5436 i++;
5437 }
5438 }
5439
70692ad2
JM		 5440 if (info->attrs[NL80211_ATTR_IE]) {
5441 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5442 memcpy((void *)request->ie,
5443 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5444 request->ie_len);
5445 }
5446
34850ab2 5447 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5448 if (wiphy->bands[i])
5449 request->rates[i] =
5450 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5451
5452 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5453 nla_for_each_nested(attr,
5454 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5455 tmp) {
5456 enum ieee80211_band band = nla_type(attr);
5457
84404623 5458 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5459 err = -EINVAL;
5460 goto out_free;
5461 }
1b09cd82
FF		 5462
5463 if (!wiphy->bands[band])
5464 continue;
5465
34850ab2
JB		 5466 err = ieee80211_get_ratemask(wiphy->bands[band],
5467 nla_data(attr),
5468 nla_len(attr),
5469 &request->rates[band]);
5470 if (err)
5471 goto out_free;
5472 }
5473 }
5474
46856bbf 5475 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5476 request->flags = nla_get_u32(
5477 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5478 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5479 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5480 err = -EOPNOTSUPP;
5481 goto out_free;
5482 }
5483 }
ed473771 5484
e9f935e3
RM		 5485 request->no_cck =
5486 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5487
fd014284 5488 request->wdev = wdev;
79c97e97 5489 request->wiphy = &rdev->wiphy;
15d6030b 5490 request->scan_start = jiffies;
2a519311 5491
79c97e97 5492 rdev->scan_req = request;
e35e4d28 5493 err = rdev_scan(rdev, request);
2a519311 5494
463d0183 5495 if (!err) {
fd014284
JB		 5496 nl80211_send_scan_start(rdev, wdev);
5497 if (wdev->netdev)
5498 dev_hold(wdev->netdev);
4c476991 5499 } else {
2a519311 5500 out_free:
79c97e97 5501 rdev->scan_req = NULL;
2a519311
JB		 5502 kfree(request);
5503 }
3b85875a 5504
f9f47529 5505 unlock:
2a519311
JB		 5506 return err;
5507}
5508
807f8a8c
LC		 5509static int nl80211_start_sched_scan(struct sk_buff *skb,
5510 struct genl_info *info)
5511{
5512 struct cfg80211_sched_scan_request *request;
5513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5514 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5515 struct nlattr *attr;
5516 struct wiphy *wiphy;
a1f1c21c 5517 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5518 u32 interval;
807f8a8c
LC		 5519 enum ieee80211_band band;
5520 size_t ie_len;
a1f1c21c 5521 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5522 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5523
5524 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5525 !rdev->ops->sched_scan_start)
5526 return -EOPNOTSUPP;
5527
5528 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5529 return -EINVAL;
5530
bbe6ad6d
LC		 5531 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5532 return -EINVAL;
5533
5534 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5535 if (interval == 0)
5536 return -EINVAL;
5537
807f8a8c
LC		 5538 wiphy = &rdev->wiphy;
5539
5540 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5541 n_channels = validate_scan_freqs(
5542 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5543 if (!n_channels)
5544 return -EINVAL;
5545 } else {
bdfbec2d 5546 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5547 }
5548
5549 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5550 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5551 tmp)
5552 n_ssids++;
5553
93b6aa69 5554 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5555 return -EINVAL;
5556
ea73cbce
JB		 5557 /*
5558 * First, count the number of 'real' matchsets. Due to an issue with
5559 * the old implementation, matchsets containing only the RSSI attribute
5560 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5561 * RSSI for all matchsets, rather than their own matchset for reporting
5562 * all APs with a strong RSSI. This is needed to be compatible with
5563 * older userspace that treated a matchset with only the RSSI as the
5564 * global RSSI for all other matchsets - if there are other matchsets.
5565 */
5566 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5567 nla_for_each_nested(attr,
5568 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5569 tmp) {
5570 struct nlattr *rssi;
5571
5572 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5573 nla_data(attr), nla_len(attr),
5574 nl80211_match_policy);
5575 if (err)
5576 return err;
5577 /* add other standalone attributes here */
5578 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5579 n_match_sets++;
5580 continue;
5581 }
5582 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5583 if (rssi)
5584 default_match_rssi = nla_get_s32(rssi);
5585 }
5586 }
5587
5588 /* However, if there's no other matchset, add the RSSI one */
5589 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5590 n_match_sets = 1;
a1f1c21c
LC		 5591
5592 if (n_match_sets > wiphy->max_match_sets)
5593 return -EINVAL;
5594
807f8a8c
LC		 5595 if (info->attrs[NL80211_ATTR_IE])
5596 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5597 else
5598 ie_len = 0;
5599
5a865bad 5600 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5601 return -EINVAL;
5602
c10841ca
LC		 5603 if (rdev->sched_scan_req) {
5604 err = -EINPROGRESS;
5605 goto out;
5606 }
5607
807f8a8c 5608 request = kzalloc(sizeof(*request)
a2cd43c5 5609 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5610 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5611 + sizeof(*request->channels) * n_channels
807f8a8c 5612 + ie_len, GFP_KERNEL);
c10841ca
LC		 5613 if (!request) {
5614 err = -ENOMEM;
5615 goto out;
5616 }
807f8a8c
LC		 5617
5618 if (n_ssids)
5619 request->ssids = (void *)&request->channels[n_channels];
5620 request->n_ssids = n_ssids;
5621 if (ie_len) {
5622 if (request->ssids)
5623 request->ie = (void *)(request->ssids + n_ssids);
5624 else
5625 request->ie = (void *)(request->channels + n_channels);
5626 }
5627
a1f1c21c
LC		 5628 if (n_match_sets) {
5629 if (request->ie)
5630 request->match_sets = (void *)(request->ie + ie_len);
5631 else if (request->ssids)
5632 request->match_sets =
5633 (void *)(request->ssids + n_ssids);
5634 else
5635 request->match_sets =
5636 (void *)(request->channels + n_channels);
5637 }
5638 request->n_match_sets = n_match_sets;
5639
807f8a8c
LC		 5640 i = 0;
5641 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5642 /* user specified, bail out if channel not found */
5643 nla_for_each_nested(attr,
5644 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5645 tmp) {
5646 struct ieee80211_channel *chan;
5647
5648 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5649
5650 if (!chan) {
5651 err = -EINVAL;
5652 goto out_free;
5653 }
5654
5655 /* ignore disabled channels */
5656 if (chan->flags & IEEE80211_CHAN_DISABLED)
5657 continue;
5658
5659 request->channels[i] = chan;
5660 i++;
5661 }
5662 } else {
5663 /* all channels */
5664 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5665 int j;
5666 if (!wiphy->bands[band])
5667 continue;
5668 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5669 struct ieee80211_channel *chan;
5670
5671 chan = &wiphy->bands[band]->channels[j];
5672
5673 if (chan->flags & IEEE80211_CHAN_DISABLED)
5674 continue;
5675
5676 request->channels[i] = chan;
5677 i++;
5678 }
5679 }
5680 }
5681
5682 if (!i) {
5683 err = -EINVAL;
5684 goto out_free;
5685 }
5686
5687 request->n_channels = i;
5688
5689 i = 0;
5690 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5691 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5692 tmp) {
57a27e1d 5693 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5694 err = -EINVAL;
5695 goto out_free;
5696 }
57a27e1d 5697 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5698 memcpy(request->ssids[i].ssid, nla_data(attr),
5699 nla_len(attr));
807f8a8c
LC		 5700 i++;
5701 }
5702 }
5703
a1f1c21c
LC		 5704 i = 0;
5705 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5706 nla_for_each_nested(attr,
5707 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5708 tmp) {
88e920b4 5709 struct nlattr *ssid, *rssi;
a1f1c21c 5710
ae811e21
JB		 5711 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5712 nla_data(attr), nla_len(attr),
5713 nl80211_match_policy);
5714 if (err)
5715 goto out_free;
4a4ab0d7 5716 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5717 if (ssid) {
ea73cbce
JB		 5718 if (WARN_ON(i >= n_match_sets)) {
5719 /* this indicates a programming error,
5720 * the loop above should have verified
5721 * things properly
5722 */
5723 err = -EINVAL;
5724 goto out_free;
5725 }
5726
a1f1c21c
LC		 5727 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5728 err = -EINVAL;
5729 goto out_free;
5730 }
5731 memcpy(request->match_sets[i].ssid.ssid,
5732 nla_data(ssid), nla_len(ssid));
5733 request->match_sets[i].ssid.ssid_len =
5734 nla_len(ssid);
ea73cbce
JB		 5735 /* special attribute - old implemenation w/a */
5736 request->match_sets[i].rssi_thold =
5737 default_match_rssi;
5738 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5739 if (rssi)
5740 request->match_sets[i].rssi_thold =
5741 nla_get_s32(rssi);
a1f1c21c
LC		 5742 }
5743 i++;
5744 }
ea73cbce
JB		 5745
5746 /* there was no other matchset, so the RSSI one is alone */
5747 if (i == 0)
5748 request->match_sets[0].rssi_thold = default_match_rssi;
5749
5750 request->min_rssi_thold = INT_MAX;
5751 for (i = 0; i < n_match_sets; i++)
5752 request->min_rssi_thold =
5753 min(request->match_sets[i].rssi_thold,
5754 request->min_rssi_thold);
5755 } else {
5756 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5757 }
5758
9900e484
JB		 5759 if (ie_len) {
5760 request->ie_len = ie_len;
807f8a8c
LC		 5761 memcpy((void *)request->ie,
5762 nla_data(info->attrs[NL80211_ATTR_IE]),
5763 request->ie_len);
5764 }
5765
46856bbf 5766 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5767 request->flags = nla_get_u32(
5768 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5769 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5770 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5771 err = -EOPNOTSUPP;
5772 goto out_free;
5773 }
5774 }
ed473771 5775
807f8a8c
LC		 5776 request->dev = dev;
5777 request->wiphy = &rdev->wiphy;
bbe6ad6d 5778 request->interval = interval;
15d6030b 5779 request->scan_start = jiffies;
807f8a8c 5780
e35e4d28 5781 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5782 if (!err) {
5783 rdev->sched_scan_req = request;
5784 nl80211_send_sched_scan(rdev, dev,
5785 NL80211_CMD_START_SCHED_SCAN);
5786 goto out;
5787 }
5788
5789out_free:
5790 kfree(request);
5791out:
5792 return err;
5793}
5794
5795static int nl80211_stop_sched_scan(struct sk_buff *skb,
5796 struct genl_info *info)
5797{
5798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5799
5800 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5801 !rdev->ops->sched_scan_stop)
5802 return -EOPNOTSUPP;
5803
5fe231e8 5804 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5805}
5806
04f39047
SW		 5807static int nl80211_start_radar_detection(struct sk_buff *skb,
5808 struct genl_info *info)
5809{
5810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5811 struct net_device *dev = info->user_ptr[1];
5812 struct wireless_dev *wdev = dev->ieee80211_ptr;
5813 struct cfg80211_chan_def chandef;
55f7435c 5814 enum nl80211_dfs_regions dfs_region;
31559f35 5815 unsigned int cac_time_ms;
04f39047
SW		 5816 int err;
5817
55f7435c
LR		 5818 dfs_region = reg_get_dfs_region(wdev->wiphy);
5819 if (dfs_region == NL80211_DFS_UNSET)
5820 return -EINVAL;
5821
04f39047
SW		 5822 err = nl80211_parse_chandef(rdev, info, &chandef);
5823 if (err)
5824 return err;
5825
ff311bc1
SW		 5826 if (netif_carrier_ok(dev))
5827 return -EBUSY;
5828
04f39047
SW		 5829 if (wdev->cac_started)
5830 return -EBUSY;
5831
2beb6dab 5832 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5833 wdev->iftype);
04f39047
SW		 5834 if (err < 0)
5835 return err;
5836
5837 if (err == 0)
5838 return -EINVAL;
5839
fe7c3a1f 5840 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5841 return -EINVAL;
5842
5843 if (!rdev->ops->start_radar_detection)
5844 return -EOPNOTSUPP;
5845
31559f35
JD		 5846 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5847 if (WARN_ON(!cac_time_ms))
5848 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5849
5850 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5851 cac_time_ms);
04f39047 5852 if (!err) {
9e0e2961 5853 wdev->chandef = chandef;
04f39047
SW		 5854 wdev->cac_started = true;
5855 wdev->cac_start_time = jiffies;
31559f35 5856 wdev->cac_time_ms = cac_time_ms;
04f39047 5857 }
04f39047
SW		 5858 return err;
5859}
5860
16ef1fe2
SW		 5861static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5862{
5863 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5864 struct net_device *dev = info->user_ptr[1];
5865 struct wireless_dev *wdev = dev->ieee80211_ptr;
5866 struct cfg80211_csa_settings params;
5867 /* csa_attrs is defined static to avoid waste of stack size - this
5868 * function is called under RTNL lock, so this should not be a problem.
5869 */
5870 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5871 u8 radar_detect_width = 0;
5872 int err;
ee4bc9e7 5873 bool need_new_beacon = false;
9a774c78 5874 int len, i;
16ef1fe2
SW		 5875
5876 if (!rdev->ops->channel_switch ||
5877 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5878 return -EOPNOTSUPP;
5879
ee4bc9e7
SW		 5880 switch (dev->ieee80211_ptr->iftype) {
5881 case NL80211_IFTYPE_AP:
5882 case NL80211_IFTYPE_P2P_GO:
5883 need_new_beacon = true;
5884
5885 /* useless if AP is not running */
5886 if (!wdev->beacon_interval)
1ff79dfa 5887 return -ENOTCONN;
ee4bc9e7
SW		 5888 break;
5889 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5890 if (!wdev->ssid_len)
5891 return -ENOTCONN;
5892 break;
c6da674a 5893 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5894 if (!wdev->mesh_id_len)
5895 return -ENOTCONN;
ee4bc9e7
SW		 5896 break;
5897 default:
16ef1fe2 5898 return -EOPNOTSUPP;
ee4bc9e7 5899 }
16ef1fe2
SW		 5900
5901 memset(&params, 0, sizeof(params));
5902
5903 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5904 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5905 return -EINVAL;
5906
5907 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5908 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5909 return -EINVAL;
5910
5911 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5912
ee4bc9e7
SW		 5913 if (!need_new_beacon)
5914 goto skip_beacons;
5915
16ef1fe2
SW		 5916 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5917 if (err)
5918 return err;
5919
5920 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5921 info->attrs[NL80211_ATTR_CSA_IES],
5922 nl80211_policy);
5923 if (err)
5924 return err;
5925
5926 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5927 if (err)
5928 return err;
5929
5930 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5931 return -EINVAL;
5932
9a774c78
AO		 5933 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5934 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5935 return -EINVAL;
5936
9a774c78
AO		 5937 params.n_counter_offsets_beacon = len / sizeof(u16);
5938 if (rdev->wiphy.max_num_csa_counters &&
5939 (params.n_counter_offsets_beacon >
5940 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5941 return -EINVAL;
5942
9a774c78
AO		 5943 params.counter_offsets_beacon =
5944 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5945
5946 /* sanity checks - counters should fit and be the same */
5947 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5948 u16 offset = params.counter_offsets_beacon[i];
5949
5950 if (offset >= params.beacon_csa.tail_len)
5951 return -EINVAL;
5952
5953 if (params.beacon_csa.tail[offset] != params.count)
5954 return -EINVAL;
5955 }
5956
16ef1fe2 5957 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5958 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5959 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5960 return -EINVAL;
5961
9a774c78
AO		 5962 params.n_counter_offsets_presp = len / sizeof(u16);
5963 if (rdev->wiphy.max_num_csa_counters &&
5964 (params.n_counter_offsets_beacon >
5965 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5966 return -EINVAL;
9a774c78
AO		 5967
5968 params.counter_offsets_presp =
5969 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5970
5971 /* sanity checks - counters should fit and be the same */
5972 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5973 u16 offset = params.counter_offsets_presp[i];
5974
5975 if (offset >= params.beacon_csa.probe_resp_len)
5976 return -EINVAL;
5977
5978 if (params.beacon_csa.probe_resp[offset] !=
5979 params.count)
5980 return -EINVAL;
5981 }
16ef1fe2
SW		 5982 }
5983
ee4bc9e7 5984skip_beacons:
16ef1fe2
SW		 5985 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5986 if (err)
5987 return err;
5988
174e0cd2
IP		 5989 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
5990 wdev->iftype))
16ef1fe2
SW		 5991 return -EINVAL;
5992
2beb6dab
LC		 5993 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5994 &params.chandef,
5995 wdev->iftype);
5996 if (err < 0)
5997 return err;
5998
5999 if (err > 0) {
6000 radar_detect_width = BIT(params.chandef.width);
6001 params.radar_required = true;
16ef1fe2
SW		 6002 }
6003
73de86a3
LC		 6004 /* TODO: I left this here for now. With channel switch, the
6005 * verification is a bit more complicated, because we only do
6006 * it later when the channel switch really happens.
6007 */
16ef1fe2
SW		 6008 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
6009 params.chandef.chan,
6010 CHAN_MODE_SHARED,
6011 radar_detect_width);
6012 if (err)
6013 return err;
6014
6015 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6016 params.block_tx = true;
6017
c56589ed
SW		 6018 wdev_lock(wdev);
6019 err = rdev_channel_switch(rdev, dev, &params);
6020 wdev_unlock(wdev);
6021
6022 return err;
16ef1fe2
SW		 6023}
6024
9720bb3a
JB		 6025static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6026 u32 seq, int flags,
2a519311 6027 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6028 struct wireless_dev *wdev,
6029 struct cfg80211_internal_bss *intbss)
2a519311 6030{
48ab905d 6031 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6032 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6033 void *hdr;
6034 struct nlattr *bss;
8cef2c9d 6035 bool tsf = false;
48ab905d
JB		 6036
6037 ASSERT_WDEV_LOCK(wdev);
2a519311 6038
15e47304 6039 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6040 NL80211_CMD_NEW_SCAN_RESULTS);
6041 if (!hdr)
6042 return -1;
6043
9720bb3a
JB		 6044 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6045
97990a06
JB		 6046 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6047 goto nla_put_failure;
6048 if (wdev->netdev &&
9360ffd1
DM		 6049 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6050 goto nla_put_failure;
97990a06
JB		 6051 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6052 goto nla_put_failure;
2a519311
JB		 6053
6054 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6055 if (!bss)
6056 goto nla_put_failure;
9360ffd1 6057 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6058 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6059 goto nla_put_failure;
9caf0364
JB		 6060
6061 rcu_read_lock();
6062 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6063 if (ies) {
6064 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6065 goto fail_unlock_rcu;
6066 tsf = true;
6067 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6068 ies->len, ies->data))
6069 goto fail_unlock_rcu;
9caf0364
JB		 6070 }
6071 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6072 if (ies) {
6073 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6074 goto fail_unlock_rcu;
6075 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6076 ies->len, ies->data))
6077 goto fail_unlock_rcu;
9caf0364
JB		 6078 }
6079 rcu_read_unlock();
6080
9360ffd1
DM		 6081 if (res->beacon_interval &&
6082 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6083 goto nla_put_failure;
6084 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6085 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6086 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6087 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6088 jiffies_to_msecs(jiffies - intbss->ts)))
6089 goto nla_put_failure;
2a519311 6090
77965c97 6091 switch (rdev->wiphy.signal_type) {
2a519311 6092 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6093 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6094 goto nla_put_failure;
2a519311
JB		 6095 break;
6096 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6097 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6098 goto nla_put_failure;
2a519311
JB		 6099 break;
6100 default:
6101 break;
6102 }
6103
48ab905d 6104 switch (wdev->iftype) {
074ac8df 6105 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6106 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6107 if (intbss == wdev->current_bss &&
6108 nla_put_u32(msg, NL80211_BSS_STATUS,
6109 NL80211_BSS_STATUS_ASSOCIATED))
6110 goto nla_put_failure;
48ab905d
JB		 6111 break;
6112 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6113 if (intbss == wdev->current_bss &&
6114 nla_put_u32(msg, NL80211_BSS_STATUS,
6115 NL80211_BSS_STATUS_IBSS_JOINED))
6116 goto nla_put_failure;
48ab905d
JB		 6117 break;
6118 default:
6119 break;
6120 }
6121
2a519311
JB		 6122 nla_nest_end(msg, bss);
6123
6124 return genlmsg_end(msg, hdr);
6125
8cef2c9d
JB		 6126 fail_unlock_rcu:
6127 rcu_read_unlock();
2a519311
JB		 6128 nla_put_failure:
6129 genlmsg_cancel(msg, hdr);
6130 return -EMSGSIZE;
6131}
6132
97990a06 6133static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6134{
48ab905d 6135 struct cfg80211_registered_device *rdev;
2a519311 6136 struct cfg80211_internal_bss *scan;
48ab905d 6137 struct wireless_dev *wdev;
97990a06 6138 int start = cb->args[2], idx = 0;
2a519311
JB		 6139 int err;
6140
97990a06 6141 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6142 if (err)
6143 return err;
2a519311 6144
48ab905d
JB		 6145 wdev_lock(wdev);
6146 spin_lock_bh(&rdev->bss_lock);
6147 cfg80211_bss_expire(rdev);
6148
9720bb3a
JB		 6149 cb->seq = rdev->bss_generation;
6150
48ab905d 6151 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6152 if (++idx <= start)
6153 continue;
9720bb3a 6154 if (nl80211_send_bss(skb, cb,
2a519311 6155 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6156 rdev, wdev, scan) < 0) {
2a519311 6157 idx--;
67748893 6158 break;
2a519311
JB		 6159 }
6160 }
6161
48ab905d
JB		 6162 spin_unlock_bh(&rdev->bss_lock);
6163 wdev_unlock(wdev);
2a519311 6164
97990a06
JB		 6165 cb->args[2] = idx;
6166 nl80211_finish_wdev_dump(rdev);
2a519311 6167
67748893 6168 return skb->len;
2a519311
JB		 6169}
6170
15e47304 6171static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6172 int flags, struct net_device *dev,
6173 struct survey_info *survey)
6174{
6175 void *hdr;
6176 struct nlattr *infoattr;
6177
15e47304 6178 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6179 NL80211_CMD_NEW_SURVEY_RESULTS);
6180 if (!hdr)
6181 return -ENOMEM;
6182
9360ffd1
DM		 6183 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6184 goto nla_put_failure;
61fa713c
HS		 6185
6186 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6187 if (!infoattr)
6188 goto nla_put_failure;
6189
9360ffd1
DM		 6190 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6191 survey->channel->center_freq))
6192 goto nla_put_failure;
6193
6194 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6195 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6196 goto nla_put_failure;
6197 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6198 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6199 goto nla_put_failure;
6200 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6201 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6202 survey->channel_time))
6203 goto nla_put_failure;
6204 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6205 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6206 survey->channel_time_busy))
6207 goto nla_put_failure;
6208 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6209 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6210 survey->channel_time_ext_busy))
6211 goto nla_put_failure;
6212 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6213 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6214 survey->channel_time_rx))
6215 goto nla_put_failure;
6216 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6217 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6218 survey->channel_time_tx))
6219 goto nla_put_failure;
61fa713c
HS		 6220
6221 nla_nest_end(msg, infoattr);
6222
6223 return genlmsg_end(msg, hdr);
6224
6225 nla_put_failure:
6226 genlmsg_cancel(msg, hdr);
6227 return -EMSGSIZE;
6228}
6229
6230static int nl80211_dump_survey(struct sk_buff *skb,
6231 struct netlink_callback *cb)
6232{
6233 struct survey_info survey;
1b8ec87a 6234 struct cfg80211_registered_device *rdev;
97990a06
JB		 6235 struct wireless_dev *wdev;
6236 int survey_idx = cb->args[2];
61fa713c
HS		 6237 int res;
6238
1b8ec87a 6239 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6240 if (res)
6241 return res;
61fa713c 6242
97990a06
JB		 6243 if (!wdev->netdev) {
6244 res = -EINVAL;
6245 goto out_err;
6246 }
6247
1b8ec87a 6248 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6249 res = -EOPNOTSUPP;
6250 goto out_err;
6251 }
6252
6253 while (1) {
180cdc79
LR		 6254 struct ieee80211_channel *chan;
6255
1b8ec87a 6256 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6257 if (res == -ENOENT)
6258 break;
6259 if (res)
6260 goto out_err;
6261
180cdc79
LR		 6262 /* Survey without a channel doesn't make sense */
6263 if (!survey.channel) {
6264 res = -EINVAL;
6265 goto out;
6266 }
6267
1b8ec87a 6268 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6269 survey.channel->center_freq);
6270 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6271 survey_idx++;
6272 continue;
6273 }
6274
61fa713c 6275 if (nl80211_send_survey(skb,
15e47304 6276 NETLINK_CB(cb->skb).portid,
61fa713c 6277 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6278 wdev->netdev, &survey) < 0)
61fa713c
HS		 6279 goto out;
6280 survey_idx++;
6281 }
6282
6283 out:
97990a06 6284 cb->args[2] = survey_idx;
61fa713c
HS		 6285 res = skb->len;
6286 out_err:
1b8ec87a 6287 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6288 return res;
6289}
6290
b23aa676
SO		 6291static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6292{
6293 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6294 NL80211_WPA_VERSION_2));
6295}
6296
636a5d36
JM		 6297static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6298{
4c476991
JB		 6299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6300 struct net_device *dev = info->user_ptr[1];
19957bb3 6301 struct ieee80211_channel *chan;
e39e5b5e
JM		 6302 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6303 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6304 enum nl80211_auth_type auth_type;
fffd0934 6305 struct key_parse key;
d5cdfacb 6306 bool local_state_change;
636a5d36 6307
f4a11bb0
JB		 6308 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6309 return -EINVAL;
6310
6311 if (!info->attrs[NL80211_ATTR_MAC])
6312 return -EINVAL;
6313
1778092e
JM		 6314 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6315 return -EINVAL;
6316
19957bb3
JB		 6317 if (!info->attrs[NL80211_ATTR_SSID])
6318 return -EINVAL;
6319
6320 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6321 return -EINVAL;
6322
fffd0934
JB		 6323 err = nl80211_parse_key(info, &key);
6324 if (err)
6325 return err;
6326
6327 if (key.idx >= 0) {
e31b8213
JB		 6328 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6329 return -EINVAL;
fffd0934
JB		 6330 if (!key.p.key || !key.p.key_len)
6331 return -EINVAL;
6332 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6333 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6334 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6335 key.p.key_len != WLAN_KEY_LEN_WEP104))
6336 return -EINVAL;
6337 if (key.idx > 4)
6338 return -EINVAL;
6339 } else {
6340 key.p.key_len = 0;
6341 key.p.key = NULL;
6342 }
6343
afea0b7a
JB		 6344 if (key.idx >= 0) {
6345 int i;
6346 bool ok = false;
6347 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6348 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6349 ok = true;
6350 break;
6351 }
6352 }
4c476991
JB		 6353 if (!ok)
6354 return -EINVAL;
afea0b7a
JB		 6355 }
6356
4c476991
JB		 6357 if (!rdev->ops->auth)
6358 return -EOPNOTSUPP;
636a5d36 6359
074ac8df 6360 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6361 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6362 return -EOPNOTSUPP;
eec60b03 6363
19957bb3 6364 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6365 chan = nl80211_get_valid_chan(&rdev->wiphy,
6366 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6367 if (!chan)
4c476991 6368 return -EINVAL;
636a5d36 6369
19957bb3
JB		 6370 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6371 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6372
6373 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6374 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6375 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6376 }
6377
19957bb3 6378 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6379 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6380 return -EINVAL;
636a5d36 6381
e39e5b5e
JM		 6382 if (auth_type == NL80211_AUTHTYPE_SAE &&
6383 !info->attrs[NL80211_ATTR_SAE_DATA])
6384 return -EINVAL;
6385
6386 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6387 if (auth_type != NL80211_AUTHTYPE_SAE)
6388 return -EINVAL;
6389 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6390 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6391 /* need to include at least Auth Transaction and Status Code */
6392 if (sae_data_len < 4)
6393 return -EINVAL;
6394 }
6395
d5cdfacb
JM		 6396 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6397
95de817b
JB		 6398 /*
6399 * Since we no longer track auth state, ignore
6400 * requests to only change local state.
6401 */
6402 if (local_state_change)
6403 return 0;
6404
91bf9b26
JB		 6405 wdev_lock(dev->ieee80211_ptr);
6406 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6407 ssid, ssid_len, ie, ie_len,
6408 key.p.key, key.p.key_len, key.idx,
6409 sae_data, sae_data_len);
6410 wdev_unlock(dev->ieee80211_ptr);
6411 return err;
636a5d36
JM		 6412}
6413
c0692b8f
JB		 6414static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6415 struct genl_info *info,
3dc27d25
JB		 6416 struct cfg80211_crypto_settings *settings,
6417 int cipher_limit)
b23aa676 6418{
c0b2bbd8
JB		 6419 memset(settings, 0, sizeof(*settings));
6420
b23aa676
SO		 6421 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6422
c0692b8f
JB		 6423 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6424 u16 proto;
6425 proto = nla_get_u16(
6426 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6427 settings->control_port_ethertype = cpu_to_be16(proto);
6428 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6429 proto != ETH_P_PAE)
6430 return -EINVAL;
6431 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6432 settings->control_port_no_encrypt = true;
6433 } else
6434 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6435
b23aa676
SO		 6436 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6437 void *data;
6438 int len, i;
6439
6440 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6441 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6442 settings->n_ciphers_pairwise = len / sizeof(u32);
6443
6444 if (len % sizeof(u32))
6445 return -EINVAL;
6446
3dc27d25 6447 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6448 return -EINVAL;
6449
6450 memcpy(settings->ciphers_pairwise, data, len);
6451
6452 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6453 if (!cfg80211_supported_cipher_suite(
6454 &rdev->wiphy,
b23aa676
SO		 6455 settings->ciphers_pairwise[i]))
6456 return -EINVAL;
6457 }
6458
6459 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6460 settings->cipher_group =
6461 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6462 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6463 settings->cipher_group))
b23aa676
SO		 6464 return -EINVAL;
6465 }
6466
6467 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6468 settings->wpa_versions =
6469 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6470 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6471 return -EINVAL;
6472 }
6473
6474 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6475 void *data;
6d30240e 6476 int len;
b23aa676
SO		 6477
6478 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6479 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6480 settings->n_akm_suites = len / sizeof(u32);
6481
6482 if (len % sizeof(u32))
6483 return -EINVAL;
6484
1b9ca027
JM		 6485 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6486 return -EINVAL;
6487
b23aa676 6488 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6489 }
6490
6491 return 0;
6492}
6493
636a5d36
JM		 6494static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6495{
4c476991
JB		 6496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6497 struct net_device *dev = info->user_ptr[1];
f444de05 6498 struct ieee80211_channel *chan;
f62fab73
JB		 6499 struct cfg80211_assoc_request req = {};
6500 const u8 *bssid, *ssid;
6501 int err, ssid_len = 0;
636a5d36 6502
f4a11bb0
JB		 6503 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6504 return -EINVAL;
6505
6506 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6507 !info->attrs[NL80211_ATTR_SSID] ||
6508 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6509 return -EINVAL;
6510
4c476991
JB		 6511 if (!rdev->ops->assoc)
6512 return -EOPNOTSUPP;
636a5d36 6513
074ac8df 6514 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6515 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6516 return -EOPNOTSUPP;
eec60b03 6517
19957bb3 6518 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6519
664834de
JM		 6520 chan = nl80211_get_valid_chan(&rdev->wiphy,
6521 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6522 if (!chan)
4c476991 6523 return -EINVAL;
636a5d36 6524
19957bb3
JB		 6525 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6526 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6527
6528 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6529 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6530 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6531 }
6532
dc6382ce 6533 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6534 enum nl80211_mfp mfp =
dc6382ce 6535 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6536 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6537 req.use_mfp = true;
4c476991
JB		 6538 else if (mfp != NL80211_MFP_NO)
6539 return -EINVAL;
dc6382ce
JM		 6540 }
6541
3e5d7649 6542 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6543 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6544
7e7c8926 6545 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6546 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6547
6548 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6549 memcpy(&req.ht_capa_mask,
6550 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6551 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6552
6553 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6554 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6555 return -EINVAL;
f62fab73
JB		 6556 memcpy(&req.ht_capa,
6557 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6558 sizeof(req.ht_capa));
7e7c8926
BG		 6559 }
6560
ee2aca34 6561 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6562 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6563
6564 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6565 memcpy(&req.vht_capa_mask,
6566 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6567 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6568
6569 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6570 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6571 return -EINVAL;
f62fab73
JB		 6572 memcpy(&req.vht_capa,
6573 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6574 sizeof(req.vht_capa));
ee2aca34
JB		 6575 }
6576
f62fab73 6577 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6578 if (!err) {
6579 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6580 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6581 ssid, ssid_len, &req);
91bf9b26
JB		 6582 wdev_unlock(dev->ieee80211_ptr);
6583 }
636a5d36 6584
636a5d36
JM		 6585 return err;
6586}
6587
6588static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6589{
4c476991
JB		 6590 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6591 struct net_device *dev = info->user_ptr[1];
19957bb3 6592 const u8 *ie = NULL, *bssid;
91bf9b26 6593 int ie_len = 0, err;
19957bb3 6594 u16 reason_code;
d5cdfacb 6595 bool local_state_change;
636a5d36 6596
f4a11bb0
JB		 6597 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6598 return -EINVAL;
6599
6600 if (!info->attrs[NL80211_ATTR_MAC])
6601 return -EINVAL;
6602
6603 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6604 return -EINVAL;
6605
4c476991
JB		 6606 if (!rdev->ops->deauth)
6607 return -EOPNOTSUPP;
636a5d36 6608
074ac8df 6609 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6610 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6611 return -EOPNOTSUPP;
eec60b03 6612
19957bb3 6613 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6614
19957bb3
JB		 6615 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6616 if (reason_code == 0) {
f4a11bb0 6617 /* Reason Code 0 is reserved */
4c476991 6618 return -EINVAL;
255e737e 6619 }
636a5d36
JM		 6620
6621 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6622 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6623 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6624 }
6625
d5cdfacb
JM		 6626 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6627
91bf9b26
JB		 6628 wdev_lock(dev->ieee80211_ptr);
6629 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6630 local_state_change);
6631 wdev_unlock(dev->ieee80211_ptr);
6632 return err;
636a5d36
JM		 6633}
6634
6635static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6636{
4c476991
JB		 6637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6638 struct net_device *dev = info->user_ptr[1];
19957bb3 6639 const u8 *ie = NULL, *bssid;
91bf9b26 6640 int ie_len = 0, err;
19957bb3 6641 u16 reason_code;
d5cdfacb 6642 bool local_state_change;
636a5d36 6643
f4a11bb0
JB		 6644 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6645 return -EINVAL;
6646
6647 if (!info->attrs[NL80211_ATTR_MAC])
6648 return -EINVAL;
6649
6650 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6651 return -EINVAL;
6652
4c476991
JB		 6653 if (!rdev->ops->disassoc)
6654 return -EOPNOTSUPP;
636a5d36 6655
074ac8df 6656 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6658 return -EOPNOTSUPP;
eec60b03 6659
19957bb3 6660 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6661
19957bb3
JB		 6662 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6663 if (reason_code == 0) {
f4a11bb0 6664 /* Reason Code 0 is reserved */
4c476991 6665 return -EINVAL;
255e737e 6666 }
636a5d36
JM		 6667
6668 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6669 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6670 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6671 }
6672
d5cdfacb
JM		 6673 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6674
91bf9b26
JB		 6675 wdev_lock(dev->ieee80211_ptr);
6676 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6677 local_state_change);
6678 wdev_unlock(dev->ieee80211_ptr);
6679 return err;
636a5d36
JM		 6680}
6681
dd5b4cc7
FF		 6682static bool
6683nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6684 int mcast_rate[IEEE80211_NUM_BANDS],
6685 int rateval)
6686{
6687 struct wiphy *wiphy = &rdev->wiphy;
6688 bool found = false;
6689 int band, i;
6690
6691 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6692 struct ieee80211_supported_band *sband;
6693
6694 sband = wiphy->bands[band];
6695 if (!sband)
6696 continue;
6697
6698 for (i = 0; i < sband->n_bitrates; i++) {
6699 if (sband->bitrates[i].bitrate == rateval) {
6700 mcast_rate[band] = i + 1;
6701 found = true;
6702 break;
6703 }
6704 }
6705 }
6706
6707 return found;
6708}
6709
04a773ad
JB		 6710static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6711{
4c476991
JB		 6712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6713 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6714 struct cfg80211_ibss_params ibss;
6715 struct wiphy *wiphy;
fffd0934 6716 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6717 int err;
6718
8e30bc55
JB		 6719 memset(&ibss, 0, sizeof(ibss));
6720
04a773ad
JB		 6721 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6722 return -EINVAL;
6723
683b6d3b 6724 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6725 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6726 return -EINVAL;
6727
8e30bc55
JB		 6728 ibss.beacon_interval = 100;
6729
6730 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6731 ibss.beacon_interval =
6732 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6733 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6734 return -EINVAL;
6735 }
6736
4c476991
JB		 6737 if (!rdev->ops->join_ibss)
6738 return -EOPNOTSUPP;
04a773ad 6739
4c476991
JB		 6740 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6741 return -EOPNOTSUPP;
04a773ad 6742
79c97e97 6743 wiphy = &rdev->wiphy;
04a773ad 6744
39193498 6745 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6746 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6747
6748 if (!is_valid_ether_addr(ibss.bssid))
6749 return -EINVAL;
6750 }
04a773ad
JB		 6751 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6752 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6753
6754 if (info->attrs[NL80211_ATTR_IE]) {
6755 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6756 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6757 }
6758
683b6d3b
JB		 6759 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6760 if (err)
6761 return err;
04a773ad 6762
174e0cd2
IP		 6763 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6764 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6765 return -EINVAL;
6766
2f301ab2 6767 switch (ibss.chandef.width) {
bf372645
SW		 6768 case NL80211_CHAN_WIDTH_5:
6769 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6770 case NL80211_CHAN_WIDTH_20_NOHT:
6771 break;
6772 case NL80211_CHAN_WIDTH_20:
6773 case NL80211_CHAN_WIDTH_40:
6774 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6775 break;
6776 default:
c04d6150 6777 return -EINVAL;
2f301ab2 6778 }
db9c64cf 6779
04a773ad 6780 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6781 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6782
fbd2c8dc
TP		 6783 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6784 u8 *rates =
6785 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6786 int n_rates =
6787 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6788 struct ieee80211_supported_band *sband =
683b6d3b 6789 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6790
34850ab2
JB		 6791 err = ieee80211_get_ratemask(sband, rates, n_rates,
6792 &ibss.basic_rates);
6793 if (err)
6794 return err;
fbd2c8dc 6795 }
dd5b4cc7 6796
803768f5
SW		 6797 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6798 memcpy(&ibss.ht_capa_mask,
6799 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6800 sizeof(ibss.ht_capa_mask));
6801
6802 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6803 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6804 return -EINVAL;
6805 memcpy(&ibss.ht_capa,
6806 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6807 sizeof(ibss.ht_capa));
6808 }
6809
dd5b4cc7
FF		 6810 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6811 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6812 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6813 return -EINVAL;
fbd2c8dc 6814
4c476991 6815 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6816 bool no_ht = false;
6817
4c476991 6818 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6819 info->attrs[NL80211_ATTR_KEYS],
6820 &no_ht);
4c476991
JB		 6821 if (IS_ERR(connkeys))
6822 return PTR_ERR(connkeys);
de7044ee 6823
3d9d1d66
JB		 6824 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6825 no_ht) {
de7044ee
SM		 6826 kfree(connkeys);
6827 return -EINVAL;
6828 }
4c476991 6829 }
04a773ad 6830
267335d6
AQ		 6831 ibss.control_port =
6832 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6833
5336fa88
SW		 6834 ibss.userspace_handles_dfs =
6835 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6836
4c476991 6837 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6838 if (err)
6839 kfree(connkeys);
04a773ad
JB		 6840 return err;
6841}
6842
6843static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6844{
4c476991
JB		 6845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6846 struct net_device *dev = info->user_ptr[1];
04a773ad 6847
4c476991
JB		 6848 if (!rdev->ops->leave_ibss)
6849 return -EOPNOTSUPP;
04a773ad 6850
4c476991
JB		 6851 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6852 return -EOPNOTSUPP;
04a773ad 6853
4c476991 6854 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6855}
6856
f4e583c8
AQ		 6857static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6858{
6859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6860 struct net_device *dev = info->user_ptr[1];
6861 int mcast_rate[IEEE80211_NUM_BANDS];
6862 u32 nla_rate;
6863 int err;
6864
6865 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6866 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6867 return -EOPNOTSUPP;
6868
6869 if (!rdev->ops->set_mcast_rate)
6870 return -EOPNOTSUPP;
6871
6872 memset(mcast_rate, 0, sizeof(mcast_rate));
6873
6874 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6875 return -EINVAL;
6876
6877 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6878 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6879 return -EINVAL;
6880
6881 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6882
6883 return err;
6884}
6885
ad7e718c
JB		 6886static struct sk_buff *
6887__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6888 int approxlen, u32 portid, u32 seq,
6889 enum nl80211_commands cmd,
567ffc35
JB		 6890 enum nl80211_attrs attr,
6891 const struct nl80211_vendor_cmd_info *info,
6892 gfp_t gfp)
ad7e718c
JB		 6893{
6894 struct sk_buff *skb;
6895 void *hdr;
6896 struct nlattr *data;
6897
6898 skb = nlmsg_new(approxlen + 100, gfp);
6899 if (!skb)
6900 return NULL;
6901
6902 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6903 if (!hdr) {
6904 kfree_skb(skb);
6905 return NULL;
6906 }
6907
6908 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6909 goto nla_put_failure;
567ffc35
JB		 6910
6911 if (info) {
6912 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6913 info->vendor_id))
6914 goto nla_put_failure;
6915 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6916 info->subcmd))
6917 goto nla_put_failure;
6918 }
6919
ad7e718c
JB		 6920 data = nla_nest_start(skb, attr);
6921
6922 ((void **)skb->cb)[0] = rdev;
6923 ((void **)skb->cb)[1] = hdr;
6924 ((void **)skb->cb)[2] = data;
6925
6926 return skb;
6927
6928 nla_put_failure:
6929 kfree_skb(skb);
6930 return NULL;
6931}
f4e583c8 6932
e03ad6ea
JB		 6933struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6934 enum nl80211_commands cmd,
6935 enum nl80211_attrs attr,
6936 int vendor_event_idx,
6937 int approxlen, gfp_t gfp)
6938{
f26cbf40 6939 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6940 const struct nl80211_vendor_cmd_info *info;
6941
6942 switch (cmd) {
6943 case NL80211_CMD_TESTMODE:
6944 if (WARN_ON(vendor_event_idx != -1))
6945 return NULL;
6946 info = NULL;
6947 break;
6948 case NL80211_CMD_VENDOR:
6949 if (WARN_ON(vendor_event_idx < 0 ||
6950 vendor_event_idx >= wiphy->n_vendor_events))
6951 return NULL;
6952 info = &wiphy->vendor_events[vendor_event_idx];
6953 break;
6954 default:
6955 WARN_ON(1);
6956 return NULL;
6957 }
6958
6959 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6960 cmd, attr, info, gfp);
6961}
6962EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6963
6964void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6965{
6966 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6967 void *hdr = ((void **)skb->cb)[1];
6968 struct nlattr *data = ((void **)skb->cb)[2];
6969 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6970
6971 nla_nest_end(skb, data);
6972 genlmsg_end(skb, hdr);
6973
6974 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6975 mcgrp = NL80211_MCGRP_VENDOR;
6976
6977 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6978 mcgrp, gfp);
6979}
6980EXPORT_SYMBOL(__cfg80211_send_event_skb);
6981
aff89a9b 6982#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6983static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6984{
4c476991 6985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6986 struct wireless_dev *wdev =
6987 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6988 int err;
6989
fc73f11f
DS		 6990 if (!rdev->ops->testmode_cmd)
6991 return -EOPNOTSUPP;
6992
6993 if (IS_ERR(wdev)) {
6994 err = PTR_ERR(wdev);
6995 if (err != -EINVAL)
6996 return err;
6997 wdev = NULL;
6998 } else if (wdev->wiphy != &rdev->wiphy) {
6999 return -EINVAL;
7000 }
7001
aff89a9b
JB		 7002 if (!info->attrs[NL80211_ATTR_TESTDATA])
7003 return -EINVAL;
7004
ad7e718c 7005 rdev->cur_cmd_info = info;
fc73f11f 7006 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7007 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7008 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7009 rdev->cur_cmd_info = NULL;
aff89a9b 7010
aff89a9b
JB		 7011 return err;
7012}
7013
71063f0e
WYG		 7014static int nl80211_testmode_dump(struct sk_buff *skb,
7015 struct netlink_callback *cb)
7016{
00918d33 7017 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7018 int err;
7019 long phy_idx;
7020 void *data = NULL;
7021 int data_len = 0;
7022
5fe231e8
JB		 7023 rtnl_lock();
7024
71063f0e
WYG		 7025 if (cb->args[0]) {
7026 /*
7027 * 0 is a valid index, but not valid for args[0],
7028 * so we need to offset by 1.
7029 */
7030 phy_idx = cb->args[0] - 1;
7031 } else {
7032 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7033 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7034 nl80211_policy);
7035 if (err)
5fe231e8 7036 goto out_err;
00918d33 7037
2bd7e35d
JB		 7038 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7039 nl80211_fam.attrbuf);
7040 if (IS_ERR(rdev)) {
5fe231e8
JB		 7041 err = PTR_ERR(rdev);
7042 goto out_err;
00918d33 7043 }
2bd7e35d
JB		 7044 phy_idx = rdev->wiphy_idx;
7045 rdev = NULL;
2bd7e35d 7046
71063f0e
WYG		 7047 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7048 cb->args[1] =
7049 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7050 }
7051
7052 if (cb->args[1]) {
7053 data = nla_data((void *)cb->args[1]);
7054 data_len = nla_len((void *)cb->args[1]);
7055 }
7056
00918d33
JB		 7057 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7058 if (!rdev) {
5fe231e8
JB		 7059 err = -ENOENT;
7060 goto out_err;
71063f0e 7061 }
71063f0e 7062
00918d33 7063 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7064 err = -EOPNOTSUPP;
7065 goto out_err;
7066 }
7067
7068 while (1) {
15e47304 7069 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7070 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7071 NL80211_CMD_TESTMODE);
7072 struct nlattr *tmdata;
7073
cb35fba3
DC		 7074 if (!hdr)
7075 break;
7076
9360ffd1 7077 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7078 genlmsg_cancel(skb, hdr);
7079 break;
7080 }
7081
7082 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7083 if (!tmdata) {
7084 genlmsg_cancel(skb, hdr);
7085 break;
7086 }
e35e4d28 7087 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7088 nla_nest_end(skb, tmdata);
7089
7090 if (err == -ENOBUFS || err == -ENOENT) {
7091 genlmsg_cancel(skb, hdr);
7092 break;
7093 } else if (err) {
7094 genlmsg_cancel(skb, hdr);
7095 goto out_err;
7096 }
7097
7098 genlmsg_end(skb, hdr);
7099 }
7100
7101 err = skb->len;
7102 /* see above */
7103 cb->args[0] = phy_idx + 1;
7104 out_err:
5fe231e8 7105 rtnl_unlock();
71063f0e
WYG		 7106 return err;
7107}
aff89a9b
JB		 7108#endif
7109
b23aa676
SO		 7110static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7111{
4c476991
JB		 7112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7113 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7114 struct cfg80211_connect_params connect;
7115 struct wiphy *wiphy;
fffd0934 7116 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7117 int err;
7118
7119 memset(&connect, 0, sizeof(connect));
7120
7121 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7122 return -EINVAL;
7123
7124 if (!info->attrs[NL80211_ATTR_SSID] ||
7125 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7126 return -EINVAL;
7127
7128 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7129 connect.auth_type =
7130 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7131 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7132 NL80211_CMD_CONNECT))
b23aa676
SO		 7133 return -EINVAL;
7134 } else
7135 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7136
7137 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7138
c0692b8f 7139 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7140 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7141 if (err)
7142 return err;
b23aa676 7143
074ac8df 7144 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7145 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7146 return -EOPNOTSUPP;
b23aa676 7147
79c97e97 7148 wiphy = &rdev->wiphy;
b23aa676 7149
4486ea98
BS		 7150 connect.bg_scan_period = -1;
7151 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7152 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7153 connect.bg_scan_period =
7154 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7155 }
7156
b23aa676
SO		 7157 if (info->attrs[NL80211_ATTR_MAC])
7158 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7159 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7160 connect.bssid_hint =
7161 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7162 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7163 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7164
7165 if (info->attrs[NL80211_ATTR_IE]) {
7166 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7167 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7168 }
7169
cee00a95
JM		 7170 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7171 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7172 if (connect.mfp != NL80211_MFP_REQUIRED &&
7173 connect.mfp != NL80211_MFP_NO)
7174 return -EINVAL;
7175 } else {
7176 connect.mfp = NL80211_MFP_NO;
7177 }
7178
b23aa676 7179 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7180 connect.channel = nl80211_get_valid_chan(
7181 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7182 if (!connect.channel)
1df4a510
JM		 7183 return -EINVAL;
7184 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7185 connect.channel_hint = nl80211_get_valid_chan(
7186 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7187 if (!connect.channel_hint)
4c476991 7188 return -EINVAL;
b23aa676
SO		 7189 }
7190
fffd0934
JB		 7191 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7192 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7193 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7194 if (IS_ERR(connkeys))
7195 return PTR_ERR(connkeys);
fffd0934
JB		 7196 }
7197
7e7c8926
BG		 7198 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7199 connect.flags |= ASSOC_REQ_DISABLE_HT;
7200
7201 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7202 memcpy(&connect.ht_capa_mask,
7203 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7204 sizeof(connect.ht_capa_mask));
7205
7206 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7207 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7208 kfree(connkeys);
7e7c8926 7209 return -EINVAL;
b4e4f47e 7210 }
7e7c8926
BG		 7211 memcpy(&connect.ht_capa,
7212 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7213 sizeof(connect.ht_capa));
7214 }
7215
ee2aca34
JB		 7216 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7217 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7218
7219 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7220 memcpy(&connect.vht_capa_mask,
7221 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7222 sizeof(connect.vht_capa_mask));
7223
7224 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7225 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7226 kfree(connkeys);
7227 return -EINVAL;
7228 }
7229 memcpy(&connect.vht_capa,
7230 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7231 sizeof(connect.vht_capa));
7232 }
7233
83739b03
JB		 7234 wdev_lock(dev->ieee80211_ptr);
7235 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7236 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7237 if (err)
7238 kfree(connkeys);
b23aa676
SO		 7239 return err;
7240}
7241
7242static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7243{
4c476991
JB		 7244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7245 struct net_device *dev = info->user_ptr[1];
b23aa676 7246 u16 reason;
83739b03 7247 int ret;
b23aa676
SO		 7248
7249 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7250 reason = WLAN_REASON_DEAUTH_LEAVING;
7251 else
7252 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7253
7254 if (reason == 0)
7255 return -EINVAL;
7256
074ac8df 7257 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7258 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7259 return -EOPNOTSUPP;
b23aa676 7260
83739b03
JB		 7261 wdev_lock(dev->ieee80211_ptr);
7262 ret = cfg80211_disconnect(rdev, dev, reason, true);
7263 wdev_unlock(dev->ieee80211_ptr);
7264 return ret;
b23aa676
SO		 7265}
7266
463d0183
JB		 7267static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7268{
4c476991 7269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7270 struct net *net;
7271 int err;
7272 u32 pid;
7273
7274 if (!info->attrs[NL80211_ATTR_PID])
7275 return -EINVAL;
7276
7277 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7278
463d0183 7279 net = get_net_ns_by_pid(pid);
4c476991
JB		 7280 if (IS_ERR(net))
7281 return PTR_ERR(net);
463d0183
JB		 7282
7283 err = 0;
7284
7285 /* check if anything to do */
4c476991
JB		 7286 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7287 err = cfg80211_switch_netns(rdev, net);
463d0183 7288
463d0183 7289 put_net(net);
463d0183
JB		 7290 return err;
7291}
7292
67fbb16b
SO		 7293static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7294{
4c476991 7295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7296 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7297 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7298 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7299 struct cfg80211_pmksa pmksa;
7300
7301 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7302
7303 if (!info->attrs[NL80211_ATTR_MAC])
7304 return -EINVAL;
7305
7306 if (!info->attrs[NL80211_ATTR_PMKID])
7307 return -EINVAL;
7308
67fbb16b
SO		 7309 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7310 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7311
074ac8df 7312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7314 return -EOPNOTSUPP;
67fbb16b
SO		 7315
7316 switch (info->genlhdr->cmd) {
7317 case NL80211_CMD_SET_PMKSA:
7318 rdev_ops = rdev->ops->set_pmksa;
7319 break;
7320 case NL80211_CMD_DEL_PMKSA:
7321 rdev_ops = rdev->ops->del_pmksa;
7322 break;
7323 default:
7324 WARN_ON(1);
7325 break;
7326 }
7327
4c476991
JB		 7328 if (!rdev_ops)
7329 return -EOPNOTSUPP;
67fbb16b 7330
4c476991 7331 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7332}
7333
7334static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7335{
4c476991
JB		 7336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7337 struct net_device *dev = info->user_ptr[1];
67fbb16b 7338
074ac8df 7339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7340 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7341 return -EOPNOTSUPP;
67fbb16b 7342
4c476991
JB		 7343 if (!rdev->ops->flush_pmksa)
7344 return -EOPNOTSUPP;
67fbb16b 7345
e35e4d28 7346 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7347}
7348
109086ce
AN		 7349static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7350{
7351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7352 struct net_device *dev = info->user_ptr[1];
7353 u8 action_code, dialog_token;
df942e7b 7354 u32 peer_capability = 0;
109086ce
AN		 7355 u16 status_code;
7356 u8 *peer;
7357
7358 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7359 !rdev->ops->tdls_mgmt)
7360 return -EOPNOTSUPP;
7361
7362 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7363 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7364 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7365 !info->attrs[NL80211_ATTR_IE] ||
7366 !info->attrs[NL80211_ATTR_MAC])
7367 return -EINVAL;
7368
7369 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7370 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7371 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7372 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
df942e7b
SDU		 7373 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7374 peer_capability =
7375 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7376
e35e4d28 7377 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7378 dialog_token, status_code, peer_capability,
e35e4d28
HG		 7379 nla_data(info->attrs[NL80211_ATTR_IE]),
7380 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7381}
7382
7383static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7384{
7385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7386 struct net_device *dev = info->user_ptr[1];
7387 enum nl80211_tdls_operation operation;
7388 u8 *peer;
7389
7390 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7391 !rdev->ops->tdls_oper)
7392 return -EOPNOTSUPP;
7393
7394 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7395 !info->attrs[NL80211_ATTR_MAC])
7396 return -EINVAL;
7397
7398 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7399 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7400
e35e4d28 7401 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7402}
7403
9588bbd5
JM		 7404static int nl80211_remain_on_channel(struct sk_buff *skb,
7405 struct genl_info *info)
7406{
4c476991 7407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7408 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7409 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7410 struct sk_buff *msg;
7411 void *hdr;
7412 u64 cookie;
683b6d3b 7413 u32 duration;
9588bbd5
JM		 7414 int err;
7415
7416 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7417 !info->attrs[NL80211_ATTR_DURATION])
7418 return -EINVAL;
7419
7420 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7421
ebf348fc
JB		 7422 if (!rdev->ops->remain_on_channel ||
7423 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7424 return -EOPNOTSUPP;
7425
9588bbd5 7426 /*
ebf348fc
JB		 7427 * We should be on that channel for at least a minimum amount of
7428 * time (10ms) but no longer than the driver supports.
9588bbd5 7429 */
ebf348fc 7430 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7431 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7432 return -EINVAL;
7433
683b6d3b
JB		 7434 err = nl80211_parse_chandef(rdev, info, &chandef);
7435 if (err)
7436 return err;
9588bbd5
JM		 7437
7438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7439 if (!msg)
7440 return -ENOMEM;
9588bbd5 7441
15e47304 7442 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7443 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7444 if (!hdr) {
7445 err = -ENOBUFS;
9588bbd5
JM		 7446 goto free_msg;
7447 }
7448
683b6d3b
JB		 7449 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7450 duration, &cookie);
9588bbd5
JM		 7451
7452 if (err)
7453 goto free_msg;
7454
9360ffd1
DM		 7455 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7456 goto nla_put_failure;
9588bbd5
JM		 7457
7458 genlmsg_end(msg, hdr);
4c476991
JB		 7459
7460 return genlmsg_reply(msg, info);
9588bbd5
JM		 7461
7462 nla_put_failure:
7463 err = -ENOBUFS;
7464 free_msg:
7465 nlmsg_free(msg);
9588bbd5
JM		 7466 return err;
7467}
7468
7469static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7470 struct genl_info *info)
7471{
4c476991 7472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7473 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7474 u64 cookie;
9588bbd5
JM		 7475
7476 if (!info->attrs[NL80211_ATTR_COOKIE])
7477 return -EINVAL;
7478
4c476991
JB		 7479 if (!rdev->ops->cancel_remain_on_channel)
7480 return -EOPNOTSUPP;
9588bbd5 7481
9588bbd5
JM		 7482 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7483
e35e4d28 7484 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7485}
7486
13ae75b1
JM		 7487static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7488 u8 *rates, u8 rates_len)
7489{
7490 u8 i;
7491 u32 mask = 0;
7492
7493 for (i = 0; i < rates_len; i++) {
7494 int rate = (rates[i] & 0x7f) * 5;
7495 int ridx;
7496 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7497 struct ieee80211_rate *srate =
7498 &sband->bitrates[ridx];
7499 if (rate == srate->bitrate) {
7500 mask |= 1 << ridx;
7501 break;
7502 }
7503 }
7504 if (ridx == sband->n_bitrates)
7505 return 0; /* rate not found */
7506 }
7507
7508 return mask;
7509}
7510
24db78c0
SW		 7511static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7512 u8 *rates, u8 rates_len,
7513 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7514{
7515 u8 i;
7516
7517 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7518
7519 for (i = 0; i < rates_len; i++) {
7520 int ridx, rbit;
7521
7522 ridx = rates[i] / 8;
7523 rbit = BIT(rates[i] % 8);
7524
7525 /* check validity */
910570b5 7526 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7527 return false;
7528
7529 /* check availability */
7530 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7531 mcs[ridx] |= rbit;
7532 else
7533 return false;
7534 }
7535
7536 return true;
7537}
7538
204e35a9
JD		 7539static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7540{
7541 u16 mcs_mask = 0;
7542
7543 switch (vht_mcs_map) {
7544 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7545 break;
7546 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7547 mcs_mask = 0x00FF;
7548 break;
7549 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7550 mcs_mask = 0x01FF;
7551 break;
7552 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7553 mcs_mask = 0x03FF;
7554 break;
7555 default:
7556 break;
7557 }
7558
7559 return mcs_mask;
7560}
7561
7562static void vht_build_mcs_mask(u16 vht_mcs_map,
7563 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7564{
7565 u8 nss;
7566
7567 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7568 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7569 vht_mcs_map >>= 2;
7570 }
7571}
7572
7573static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7574 struct nl80211_txrate_vht *txrate,
7575 u16 mcs[NL80211_VHT_NSS_MAX])
7576{
7577 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7578 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7579 u8 i;
7580
7581 if (!sband->vht_cap.vht_supported)
7582 return false;
7583
7584 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7585
7586 /* Build vht_mcs_mask from VHT capabilities */
7587 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7588
7589 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7590 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7591 mcs[i] = txrate->mcs[i];
7592 else
7593 return false;
7594 }
7595
7596 return true;
7597}
7598
b54452b0 7599static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7600 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7601 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7602 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7603 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7604 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7605 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7606};
7607
7608static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7609 struct genl_info *info)
7610{
7611 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7613 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7614 int rem, i;
7615 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7616 struct nlattr *tx_rates;
7617 struct ieee80211_supported_band *sband;
204e35a9 7618 u16 vht_tx_mcs_map;
13ae75b1 7619
4c476991
JB		 7620 if (!rdev->ops->set_bitrate_mask)
7621 return -EOPNOTSUPP;
13ae75b1
JM		 7622
7623 memset(&mask, 0, sizeof(mask));
7624 /* Default to all rates enabled */
7625 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7626 sband = rdev->wiphy.bands[i];
7869303b
JD		 7627
7628 if (!sband)
7629 continue;
7630
7631 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7632 memcpy(mask.control[i].ht_mcs,
7869303b 7633 sband->ht_cap.mcs.rx_mask,
d1e33e65 7634 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7635
7636 if (!sband->vht_cap.vht_supported)
7637 continue;
7638
7639 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7640 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7641 }
7642
b9243ab0
JD		 7643 /* if no rates are given set it back to the defaults */
7644 if (!info->attrs[NL80211_ATTR_TX_RATES])
7645 goto out;
7646
13ae75b1
JM		 7647 /*
7648 * The nested attribute uses enum nl80211_band as the index. This maps
7649 * directly to the enum ieee80211_band values used in cfg80211.
7650 */
24db78c0 7651 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7652 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7653 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7654 int err;
7655
4c476991
JB		 7656 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7657 return -EINVAL;
13ae75b1 7658 sband = rdev->wiphy.bands[band];
4c476991
JB		 7659 if (sband == NULL)
7660 return -EINVAL;
ae811e21
JB		 7661 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7662 nla_len(tx_rates), nl80211_txattr_policy);
7663 if (err)
7664 return err;
13ae75b1
JM		 7665 if (tb[NL80211_TXRATE_LEGACY]) {
7666 mask.control[band].legacy = rateset_to_mask(
7667 sband,
7668 nla_data(tb[NL80211_TXRATE_LEGACY]),
7669 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7670 if ((mask.control[band].legacy == 0) &&
7671 nla_len(tb[NL80211_TXRATE_LEGACY]))
7672 return -EINVAL;
24db78c0 7673 }
d1e33e65 7674 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7675 if (!ht_rateset_to_mask(
7676 sband,
d1e33e65
JD		 7677 nla_data(tb[NL80211_TXRATE_HT]),
7678 nla_len(tb[NL80211_TXRATE_HT]),
7679 mask.control[band].ht_mcs))
24db78c0
SW		 7680 return -EINVAL;
7681 }
204e35a9
JD		 7682 if (tb[NL80211_TXRATE_VHT]) {
7683 if (!vht_set_mcs_mask(
7684 sband,
7685 nla_data(tb[NL80211_TXRATE_VHT]),
7686 mask.control[band].vht_mcs))
7687 return -EINVAL;
7688 }
0b9323f6
JD		 7689 if (tb[NL80211_TXRATE_GI]) {
7690 mask.control[band].gi =
7691 nla_get_u8(tb[NL80211_TXRATE_GI]);
7692 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7693 return -EINVAL;
7694 }
24db78c0
SW		 7695
7696 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7697 /* don't allow empty legacy rates if HT or VHT
7698 * are not even supported.
7699 */
7700 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7701 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7702 return -EINVAL;
7703
7704 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7705 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7706 goto out;
7707
7708 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7709 if (mask.control[band].vht_mcs[i])
7710 goto out;
24db78c0
SW		 7711
7712 /* legacy and mcs rates may not be both empty */
204e35a9 7713 return -EINVAL;
13ae75b1
JM		 7714 }
7715 }
7716
b9243ab0 7717out:
e35e4d28 7718 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7719}
7720
2e161f78 7721static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7722{
4c476991 7723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7724 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7725 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7726
7727 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7728 return -EINVAL;
7729
2e161f78
JB		 7730 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7731 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7732
71bbc994
JB		 7733 switch (wdev->iftype) {
7734 case NL80211_IFTYPE_STATION:
7735 case NL80211_IFTYPE_ADHOC:
7736 case NL80211_IFTYPE_P2P_CLIENT:
7737 case NL80211_IFTYPE_AP:
7738 case NL80211_IFTYPE_AP_VLAN:
7739 case NL80211_IFTYPE_MESH_POINT:
7740 case NL80211_IFTYPE_P2P_GO:
98104fde 7741 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7742 break;
7743 default:
4c476991 7744 return -EOPNOTSUPP;
71bbc994 7745 }
026331c4
JM		 7746
7747 /* not much point in registering if we can't reply */
4c476991
JB		 7748 if (!rdev->ops->mgmt_tx)
7749 return -EOPNOTSUPP;
026331c4 7750
15e47304 7751 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7752 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7753 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7754}
7755
2e161f78 7756static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7757{
4c476991 7758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7759 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7760 struct cfg80211_chan_def chandef;
026331c4 7761 int err;
d64d373f 7762 void *hdr = NULL;
026331c4 7763 u64 cookie;
e247bd90 7764 struct sk_buff *msg = NULL;
b176e629
AO		 7765 struct cfg80211_mgmt_tx_params params = {
7766 .dont_wait_for_ack =
7767 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7768 };
026331c4 7769
683b6d3b 7770 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7771 return -EINVAL;
7772
4c476991
JB		 7773 if (!rdev->ops->mgmt_tx)
7774 return -EOPNOTSUPP;
026331c4 7775
71bbc994 7776 switch (wdev->iftype) {
ea141b75
AQ		 7777 case NL80211_IFTYPE_P2P_DEVICE:
7778 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7779 return -EINVAL;
71bbc994
JB		 7780 case NL80211_IFTYPE_STATION:
7781 case NL80211_IFTYPE_ADHOC:
7782 case NL80211_IFTYPE_P2P_CLIENT:
7783 case NL80211_IFTYPE_AP:
7784 case NL80211_IFTYPE_AP_VLAN:
7785 case NL80211_IFTYPE_MESH_POINT:
7786 case NL80211_IFTYPE_P2P_GO:
7787 break;
7788 default:
4c476991 7789 return -EOPNOTSUPP;
71bbc994 7790 }
026331c4 7791
f7ca38df 7792 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7793 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7794 return -EINVAL;
b176e629 7795 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7796
7797 /*
7798 * We should wait on the channel for at least a minimum amount
7799 * of time (10ms) but no longer than the driver supports.
7800 */
b176e629
AO		 7801 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7802 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7803 return -EINVAL;
7804
f7ca38df
JB		 7805 }
7806
b176e629 7807 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7808
b176e629 7809 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7810 return -EINVAL;
7811
b176e629 7812 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7813
ea141b75
AQ		 7814 /* get the channel if any has been specified, otherwise pass NULL to
7815 * the driver. The latter will use the current one
7816 */
7817 chandef.chan = NULL;
7818 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7819 err = nl80211_parse_chandef(rdev, info, &chandef);
7820 if (err)
7821 return err;
7822 }
7823
b176e629 7824 if (!chandef.chan && params.offchan)
ea141b75 7825 return -EINVAL;
026331c4 7826
34d22ce2
AO		 7827 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7828 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7829
7830 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7831 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7832 int i;
7833
7834 if (len % sizeof(u16))
7835 return -EINVAL;
7836
7837 params.n_csa_offsets = len / sizeof(u16);
7838 params.csa_offsets =
7839 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7840
7841 /* check that all the offsets fit the frame */
7842 for (i = 0; i < params.n_csa_offsets; i++) {
7843 if (params.csa_offsets[i] >= params.len)
7844 return -EINVAL;
7845 }
7846 }
7847
b176e629 7848 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7850 if (!msg)
7851 return -ENOMEM;
026331c4 7852
15e47304 7853 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7854 NL80211_CMD_FRAME);
cb35fba3
DC		 7855 if (!hdr) {
7856 err = -ENOBUFS;
e247bd90
JB		 7857 goto free_msg;
7858 }
026331c4 7859 }
e247bd90 7860
b176e629
AO		 7861 params.chan = chandef.chan;
7862 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7863 if (err)
7864 goto free_msg;
7865
e247bd90 7866 if (msg) {
9360ffd1
DM		 7867 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7868 goto nla_put_failure;
026331c4 7869
e247bd90
JB		 7870 genlmsg_end(msg, hdr);
7871 return genlmsg_reply(msg, info);
7872 }
7873
7874 return 0;
026331c4
JM		 7875
7876 nla_put_failure:
7877 err = -ENOBUFS;
7878 free_msg:
7879 nlmsg_free(msg);
026331c4
JM		 7880 return err;
7881}
7882
f7ca38df
JB		 7883static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7884{
7885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7886 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7887 u64 cookie;
7888
7889 if (!info->attrs[NL80211_ATTR_COOKIE])
7890 return -EINVAL;
7891
7892 if (!rdev->ops->mgmt_tx_cancel_wait)
7893 return -EOPNOTSUPP;
7894
71bbc994
JB		 7895 switch (wdev->iftype) {
7896 case NL80211_IFTYPE_STATION:
7897 case NL80211_IFTYPE_ADHOC:
7898 case NL80211_IFTYPE_P2P_CLIENT:
7899 case NL80211_IFTYPE_AP:
7900 case NL80211_IFTYPE_AP_VLAN:
7901 case NL80211_IFTYPE_P2P_GO:
98104fde 7902 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7903 break;
7904 default:
f7ca38df 7905 return -EOPNOTSUPP;
71bbc994 7906 }
f7ca38df
JB		 7907
7908 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7909
e35e4d28 7910 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7911}
7912
ffb9eb3d
KV		 7913static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7914{
4c476991 7915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7916 struct wireless_dev *wdev;
4c476991 7917 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7918 u8 ps_state;
7919 bool state;
7920 int err;
7921
4c476991
JB		 7922 if (!info->attrs[NL80211_ATTR_PS_STATE])
7923 return -EINVAL;
ffb9eb3d
KV		 7924
7925 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7926
4c476991
JB		 7927 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7928 return -EINVAL;
ffb9eb3d
KV		 7929
7930 wdev = dev->ieee80211_ptr;
7931
4c476991
JB		 7932 if (!rdev->ops->set_power_mgmt)
7933 return -EOPNOTSUPP;
ffb9eb3d
KV		 7934
7935 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7936
7937 if (state == wdev->ps)
4c476991 7938 return 0;
ffb9eb3d 7939
e35e4d28 7940 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7941 if (!err)
7942 wdev->ps = state;
ffb9eb3d
KV		 7943 return err;
7944}
7945
7946static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7947{
4c476991 7948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7949 enum nl80211_ps_state ps_state;
7950 struct wireless_dev *wdev;
4c476991 7951 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7952 struct sk_buff *msg;
7953 void *hdr;
7954 int err;
7955
ffb9eb3d
KV		 7956 wdev = dev->ieee80211_ptr;
7957
4c476991
JB		 7958 if (!rdev->ops->set_power_mgmt)
7959 return -EOPNOTSUPP;
ffb9eb3d
KV		 7960
7961 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7962 if (!msg)
7963 return -ENOMEM;
ffb9eb3d 7964
15e47304 7965 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7966 NL80211_CMD_GET_POWER_SAVE);
7967 if (!hdr) {
4c476991 7968 err = -ENOBUFS;
ffb9eb3d
KV		 7969 goto free_msg;
7970 }
7971
7972 if (wdev->ps)
7973 ps_state = NL80211_PS_ENABLED;
7974 else
7975 ps_state = NL80211_PS_DISABLED;
7976
9360ffd1
DM		 7977 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7978 goto nla_put_failure;
ffb9eb3d
KV		 7979
7980 genlmsg_end(msg, hdr);
4c476991 7981 return genlmsg_reply(msg, info);
ffb9eb3d 7982
4c476991 7983 nla_put_failure:
ffb9eb3d 7984 err = -ENOBUFS;
4c476991 7985 free_msg:
ffb9eb3d 7986 nlmsg_free(msg);
ffb9eb3d
KV		 7987 return err;
7988}
7989
94e860f1
JB		 7990static const struct nla_policy
7991nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7992 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7993 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7994 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7995 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7996 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7997 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7998};
7999
84f10708 8000static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8001 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8002{
8003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8004 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8005 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8006
d9d8b019 8007 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8008 return -EINVAL;
8009
84f10708
TP		 8010 if (!rdev->ops->set_cqm_txe_config)
8011 return -EOPNOTSUPP;
8012
8013 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8014 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8015 return -EOPNOTSUPP;
8016
e35e4d28 8017 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8018}
8019
d6dc1a38
JO		 8020static int nl80211_set_cqm_rssi(struct genl_info *info,
8021 s32 threshold, u32 hysteresis)
8022{
4c476991 8023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8024 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8025 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8026
8027 if (threshold > 0)
8028 return -EINVAL;
8029
1da5fcc8
JB		 8030 /* disabling - hysteresis should also be zero then */
8031 if (threshold == 0)
8032 hysteresis = 0;
d6dc1a38 8033
4c476991
JB		 8034 if (!rdev->ops->set_cqm_rssi_config)
8035 return -EOPNOTSUPP;
d6dc1a38 8036
074ac8df 8037 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8038 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8039 return -EOPNOTSUPP;
d6dc1a38 8040
e35e4d28 8041 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8042}
8043
8044static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8045{
8046 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8047 struct nlattr *cqm;
8048 int err;
8049
8050 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8051 if (!cqm)
8052 return -EINVAL;
d6dc1a38
JO		 8053
8054 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8055 nl80211_attr_cqm_policy);
8056 if (err)
1da5fcc8 8057 return err;
d6dc1a38
JO		 8058
8059 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8060 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8061 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8062 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8063
1da5fcc8
JB		 8064 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8065 }
8066
8067 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8068 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8069 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8070 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8071 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8072 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8073
8074 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8075 }
8076
8077 return -EINVAL;
d6dc1a38
JO		 8078}
8079
29cbe68c
JB		 8080static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8081{
8082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8083 struct net_device *dev = info->user_ptr[1];
8084 struct mesh_config cfg;
c80d545d 8085 struct mesh_setup setup;
29cbe68c
JB		 8086 int err;
8087
8088 /* start with default */
8089 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8090 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8091
24bdd9f4 8092 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8093 /* and parse parameters if given */
24bdd9f4 8094 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8095 if (err)
8096 return err;
8097 }
8098
8099 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8100 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8101 return -EINVAL;
8102
c80d545d
JC		 8103 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8104 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8105
4bb62344
CYY		 8106 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8107 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8108 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8109 return -EINVAL;
8110
9bdbf04d
MP		 8111 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8112 setup.beacon_interval =
8113 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8114 if (setup.beacon_interval < 10 ||
8115 setup.beacon_interval > 10000)
8116 return -EINVAL;
8117 }
8118
8119 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8120 setup.dtim_period =
8121 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8122 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8123 return -EINVAL;
8124 }
8125
c80d545d
JC		 8126 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8127 /* parse additional setup parameters if given */
8128 err = nl80211_parse_mesh_setup(info, &setup);
8129 if (err)
8130 return err;
8131 }
8132
d37bb18a
TP		 8133 if (setup.user_mpm)
8134 cfg.auto_open_plinks = false;
8135
cc1d2806 8136 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8137 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8138 if (err)
8139 return err;
cc1d2806
JB		 8140 } else {
8141 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8142 setup.chandef.chan = NULL;
cc1d2806
JB		 8143 }
8144
ffb3cf30
AN		 8145 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8146 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8147 int n_rates =
8148 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8149 struct ieee80211_supported_band *sband;
8150
8151 if (!setup.chandef.chan)
8152 return -EINVAL;
8153
8154 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8155
8156 err = ieee80211_get_ratemask(sband, rates, n_rates,
8157 &setup.basic_rates);
8158 if (err)
8159 return err;
8160 }
8161
c80d545d 8162 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8163}
8164
8165static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8166{
8167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8168 struct net_device *dev = info->user_ptr[1];
8169
8170 return cfg80211_leave_mesh(rdev, dev);
8171}
8172
dfb89c56 8173#ifdef CONFIG_PM
bb92d199
AK		 8174static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8175 struct cfg80211_registered_device *rdev)
8176{
6abb9cb9 8177 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8178 struct nlattr *nl_pats, *nl_pat;
8179 int i, pat_len;
8180
6abb9cb9 8181 if (!wowlan->n_patterns)
bb92d199
AK		 8182 return 0;
8183
8184 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8185 if (!nl_pats)
8186 return -ENOBUFS;
8187
6abb9cb9 8188 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8189 nl_pat = nla_nest_start(msg, i + 1);
8190 if (!nl_pat)
8191 return -ENOBUFS;
6abb9cb9 8192 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8193 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8194 wowlan->patterns[i].mask) ||
50ac6607
AK		 8195 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8196 wowlan->patterns[i].pattern) ||
8197 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8198 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8199 return -ENOBUFS;
8200 nla_nest_end(msg, nl_pat);
8201 }
8202 nla_nest_end(msg, nl_pats);
8203
8204 return 0;
8205}
8206
2a0e047e
JB		 8207static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8208 struct cfg80211_wowlan_tcp *tcp)
8209{
8210 struct nlattr *nl_tcp;
8211
8212 if (!tcp)
8213 return 0;
8214
8215 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8216 if (!nl_tcp)
8217 return -ENOBUFS;
8218
8219 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8220 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8221 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8222 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8223 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8224 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8225 tcp->payload_len, tcp->payload) ||
8226 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8227 tcp->data_interval) ||
8228 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8229 tcp->wake_len, tcp->wake_data) ||
8230 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8231 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8232 return -ENOBUFS;
8233
8234 if (tcp->payload_seq.len &&
8235 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8236 sizeof(tcp->payload_seq), &tcp->payload_seq))
8237 return -ENOBUFS;
8238
8239 if (tcp->payload_tok.len &&
8240 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8241 sizeof(tcp->payload_tok) + tcp->tokens_size,
8242 &tcp->payload_tok))
8243 return -ENOBUFS;
8244
e248ad30
JB		 8245 nla_nest_end(msg, nl_tcp);
8246
2a0e047e
JB		 8247 return 0;
8248}
8249
ff1b6e69
JB		 8250static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8251{
8252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8253 struct sk_buff *msg;
8254 void *hdr;
2a0e047e 8255 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8256
964dc9e2 8257 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8258 return -EOPNOTSUPP;
8259
6abb9cb9 8260 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8261 /* adjust size to have room for all the data */
6abb9cb9
JB		 8262 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8263 rdev->wiphy.wowlan_config->tcp->payload_len +
8264 rdev->wiphy.wowlan_config->tcp->wake_len +
8265 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8266 }
8267
8268 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8269 if (!msg)
8270 return -ENOMEM;
8271
15e47304 8272 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8273 NL80211_CMD_GET_WOWLAN);
8274 if (!hdr)
8275 goto nla_put_failure;
8276
6abb9cb9 8277 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8278 struct nlattr *nl_wowlan;
8279
8280 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8281 if (!nl_wowlan)
8282 goto nla_put_failure;
8283
6abb9cb9 8284 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8285 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8286 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8287 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8288 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8289 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8290 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8291 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8292 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8293 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8294 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8295 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8296 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8297 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8298 goto nla_put_failure;
2a0e047e 8299
bb92d199
AK		 8300 if (nl80211_send_wowlan_patterns(msg, rdev))
8301 goto nla_put_failure;
2a0e047e 8302
6abb9cb9
JB		 8303 if (nl80211_send_wowlan_tcp(msg,
8304 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8305 goto nla_put_failure;
8306
ff1b6e69
JB		 8307 nla_nest_end(msg, nl_wowlan);
8308 }
8309
8310 genlmsg_end(msg, hdr);
8311 return genlmsg_reply(msg, info);
8312
8313nla_put_failure:
8314 nlmsg_free(msg);
8315 return -ENOBUFS;
8316}
8317
2a0e047e
JB		 8318static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8319 struct nlattr *attr,
8320 struct cfg80211_wowlan *trig)
8321{
8322 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8323 struct cfg80211_wowlan_tcp *cfg;
8324 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8325 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8326 u32 size;
8327 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8328 int err, port;
8329
964dc9e2 8330 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8331 return -EINVAL;
8332
8333 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8334 nla_data(attr), nla_len(attr),
8335 nl80211_wowlan_tcp_policy);
8336 if (err)
8337 return err;
8338
8339 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8340 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8341 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8342 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8343 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8344 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8345 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8346 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8347 return -EINVAL;
8348
8349 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8350 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8351 return -EINVAL;
8352
8353 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8354 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8355 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8356 return -EINVAL;
8357
8358 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8359 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8360 return -EINVAL;
8361
8362 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8363 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8364 return -EINVAL;
8365
8366 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8367 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8368
8369 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8370 tokens_size = tokln - sizeof(*tok);
8371
8372 if (!tok->len || tokens_size % tok->len)
8373 return -EINVAL;
964dc9e2 8374 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8375 return -EINVAL;
964dc9e2 8376 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8377 return -EINVAL;
964dc9e2 8378 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8379 return -EINVAL;
964dc9e2 8380 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8381 return -EINVAL;
8382 if (tok->offset + tok->len > data_size)
8383 return -EINVAL;
8384 }
8385
8386 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8387 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8388 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8389 return -EINVAL;
8390 if (seq->len == 0 || seq->len > 4)
8391 return -EINVAL;
8392 if (seq->len + seq->offset > data_size)
8393 return -EINVAL;
8394 }
8395
8396 size = sizeof(*cfg);
8397 size += data_size;
8398 size += wake_size + wake_mask_size;
8399 size += tokens_size;
8400
8401 cfg = kzalloc(size, GFP_KERNEL);
8402 if (!cfg)
8403 return -ENOMEM;
8404 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8405 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8406 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8407 ETH_ALEN);
8408 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8409 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8410 else
8411 port = 0;
8412#ifdef CONFIG_INET
8413 /* allocate a socket and port for it and use it */
8414 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8415 IPPROTO_TCP, &cfg->sock, 1);
8416 if (err) {
8417 kfree(cfg);
8418 return err;
8419 }
8420 if (inet_csk_get_port(cfg->sock->sk, port)) {
8421 sock_release(cfg->sock);
8422 kfree(cfg);
8423 return -EADDRINUSE;
8424 }
8425 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8426#else
8427 if (!port) {
8428 kfree(cfg);
8429 return -EINVAL;
8430 }
8431 cfg->src_port = port;
8432#endif
8433
8434 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8435 cfg->payload_len = data_size;
8436 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8437 memcpy((void *)cfg->payload,
8438 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8439 data_size);
8440 if (seq)
8441 cfg->payload_seq = *seq;
8442 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8443 cfg->wake_len = wake_size;
8444 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8445 memcpy((void *)cfg->wake_data,
8446 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8447 wake_size);
8448 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8449 data_size + wake_size;
8450 memcpy((void *)cfg->wake_mask,
8451 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8452 wake_mask_size);
8453 if (tok) {
8454 cfg->tokens_size = tokens_size;
8455 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8456 }
8457
8458 trig->tcp = cfg;
8459
8460 return 0;
8461}
8462
ff1b6e69
JB		 8463static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8464{
8465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8466 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8467 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8468 struct cfg80211_wowlan *ntrig;
964dc9e2 8469 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8470 int err, i;
6abb9cb9 8471 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8472
964dc9e2 8473 if (!wowlan)
ff1b6e69
JB		 8474 return -EOPNOTSUPP;
8475
ae33bd81
JB		 8476 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8477 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8478 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8479 goto set_wakeup;
8480 }
ff1b6e69
JB		 8481
8482 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8483 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8484 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8485 nl80211_wowlan_policy);
8486 if (err)
8487 return err;
8488
8489 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8490 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8491 return -EINVAL;
8492 new_triggers.any = true;
8493 }
8494
8495 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8496 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8497 return -EINVAL;
8498 new_triggers.disconnect = true;
8499 }
8500
8501 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8502 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8503 return -EINVAL;
8504 new_triggers.magic_pkt = true;
8505 }
8506
77dbbb13
JB		 8507 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8508 return -EINVAL;
8509
8510 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8511 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8512 return -EINVAL;
8513 new_triggers.gtk_rekey_failure = true;
8514 }
8515
8516 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8517 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8518 return -EINVAL;
8519 new_triggers.eap_identity_req = true;
8520 }
8521
8522 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8523 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8524 return -EINVAL;
8525 new_triggers.four_way_handshake = true;
8526 }
8527
8528 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8529 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8530 return -EINVAL;
8531 new_triggers.rfkill_release = true;
8532 }
8533
ff1b6e69
JB		 8534 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8535 struct nlattr *pat;
8536 int n_patterns = 0;
bb92d199 8537 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8538 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8539
8540 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8541 rem)
8542 n_patterns++;
8543 if (n_patterns > wowlan->n_patterns)
8544 return -EINVAL;
8545
8546 new_triggers.patterns = kcalloc(n_patterns,
8547 sizeof(new_triggers.patterns[0]),
8548 GFP_KERNEL);
8549 if (!new_triggers.patterns)
8550 return -ENOMEM;
8551
8552 new_triggers.n_patterns = n_patterns;
8553 i = 0;
8554
8555 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8556 rem) {
50ac6607
AK		 8557 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8558 nla_len(pat), NULL);
ff1b6e69 8559 err = -EINVAL;
50ac6607
AK		 8560 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8561 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8562 goto error;
50ac6607 8563 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8564 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8565 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8566 goto error;
8567 if (pat_len > wowlan->pattern_max_len ||
8568 pat_len < wowlan->pattern_min_len)
8569 goto error;
8570
50ac6607 8571 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8572 pkt_offset = 0;
8573 else
8574 pkt_offset = nla_get_u32(
50ac6607 8575 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8576 if (pkt_offset > wowlan->max_pkt_offset)
8577 goto error;
8578 new_triggers.patterns[i].pkt_offset = pkt_offset;
8579
ff1b6e69
JB		 8580 new_triggers.patterns[i].mask =
8581 kmalloc(mask_len + pat_len, GFP_KERNEL);
8582 if (!new_triggers.patterns[i].mask) {
8583 err = -ENOMEM;
8584 goto error;
8585 }
8586 new_triggers.patterns[i].pattern =
8587 new_triggers.patterns[i].mask + mask_len;
8588 memcpy(new_triggers.patterns[i].mask,
50ac6607 8589 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8590 mask_len);
8591 new_triggers.patterns[i].pattern_len = pat_len;
8592 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8593 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8594 pat_len);
8595 i++;
8596 }
8597 }
8598
2a0e047e
JB		 8599 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8600 err = nl80211_parse_wowlan_tcp(
8601 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8602 &new_triggers);
8603 if (err)
8604 goto error;
8605 }
8606
ae33bd81
JB		 8607 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8608 if (!ntrig) {
8609 err = -ENOMEM;
8610 goto error;
ff1b6e69 8611 }
ae33bd81 8612 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8613 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8614
ae33bd81 8615 set_wakeup:
6abb9cb9
JB		 8616 if (rdev->ops->set_wakeup &&
8617 prev_enabled != !!rdev->wiphy.wowlan_config)
8618 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8619
ff1b6e69
JB		 8620 return 0;
8621 error:
8622 for (i = 0; i < new_triggers.n_patterns; i++)
8623 kfree(new_triggers.patterns[i].mask);
8624 kfree(new_triggers.patterns);
2a0e047e
JB		 8625 if (new_triggers.tcp && new_triggers.tcp->sock)
8626 sock_release(new_triggers.tcp->sock);
8627 kfree(new_triggers.tcp);
ff1b6e69
JB		 8628 return err;
8629}
dfb89c56 8630#endif
ff1b6e69 8631
be29b99a
AK		 8632static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8633 struct cfg80211_registered_device *rdev)
8634{
8635 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8636 int i, j, pat_len;
8637 struct cfg80211_coalesce_rules *rule;
8638
8639 if (!rdev->coalesce->n_rules)
8640 return 0;
8641
8642 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8643 if (!nl_rules)
8644 return -ENOBUFS;
8645
8646 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8647 nl_rule = nla_nest_start(msg, i + 1);
8648 if (!nl_rule)
8649 return -ENOBUFS;
8650
8651 rule = &rdev->coalesce->rules[i];
8652 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8653 rule->delay))
8654 return -ENOBUFS;
8655
8656 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8657 rule->condition))
8658 return -ENOBUFS;
8659
8660 nl_pats = nla_nest_start(msg,
8661 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8662 if (!nl_pats)
8663 return -ENOBUFS;
8664
8665 for (j = 0; j < rule->n_patterns; j++) {
8666 nl_pat = nla_nest_start(msg, j + 1);
8667 if (!nl_pat)
8668 return -ENOBUFS;
8669 pat_len = rule->patterns[j].pattern_len;
8670 if (nla_put(msg, NL80211_PKTPAT_MASK,
8671 DIV_ROUND_UP(pat_len, 8),
8672 rule->patterns[j].mask) ||
8673 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8674 rule->patterns[j].pattern) ||
8675 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8676 rule->patterns[j].pkt_offset))
8677 return -ENOBUFS;
8678 nla_nest_end(msg, nl_pat);
8679 }
8680 nla_nest_end(msg, nl_pats);
8681 nla_nest_end(msg, nl_rule);
8682 }
8683 nla_nest_end(msg, nl_rules);
8684
8685 return 0;
8686}
8687
8688static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8689{
8690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8691 struct sk_buff *msg;
8692 void *hdr;
8693
8694 if (!rdev->wiphy.coalesce)
8695 return -EOPNOTSUPP;
8696
8697 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8698 if (!msg)
8699 return -ENOMEM;
8700
8701 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8702 NL80211_CMD_GET_COALESCE);
8703 if (!hdr)
8704 goto nla_put_failure;
8705
8706 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8707 goto nla_put_failure;
8708
8709 genlmsg_end(msg, hdr);
8710 return genlmsg_reply(msg, info);
8711
8712nla_put_failure:
8713 nlmsg_free(msg);
8714 return -ENOBUFS;
8715}
8716
8717void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8718{
8719 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8720 int i, j;
8721 struct cfg80211_coalesce_rules *rule;
8722
8723 if (!coalesce)
8724 return;
8725
8726 for (i = 0; i < coalesce->n_rules; i++) {
8727 rule = &coalesce->rules[i];
8728 for (j = 0; j < rule->n_patterns; j++)
8729 kfree(rule->patterns[j].mask);
8730 kfree(rule->patterns);
8731 }
8732 kfree(coalesce->rules);
8733 kfree(coalesce);
8734 rdev->coalesce = NULL;
8735}
8736
8737static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8738 struct nlattr *rule,
8739 struct cfg80211_coalesce_rules *new_rule)
8740{
8741 int err, i;
8742 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8743 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8744 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8745 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8746
8747 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8748 nla_len(rule), nl80211_coalesce_policy);
8749 if (err)
8750 return err;
8751
8752 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8753 new_rule->delay =
8754 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8755 if (new_rule->delay > coalesce->max_delay)
8756 return -EINVAL;
8757
8758 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8759 new_rule->condition =
8760 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8761 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8762 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8763 return -EINVAL;
8764
8765 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8766 return -EINVAL;
8767
8768 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8769 rem)
8770 n_patterns++;
8771 if (n_patterns > coalesce->n_patterns)
8772 return -EINVAL;
8773
8774 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8775 GFP_KERNEL);
8776 if (!new_rule->patterns)
8777 return -ENOMEM;
8778
8779 new_rule->n_patterns = n_patterns;
8780 i = 0;
8781
8782 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8783 rem) {
8784 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8785 nla_len(pat), NULL);
8786 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8787 !pat_tb[NL80211_PKTPAT_PATTERN])
8788 return -EINVAL;
8789 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8790 mask_len = DIV_ROUND_UP(pat_len, 8);
8791 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8792 return -EINVAL;
8793 if (pat_len > coalesce->pattern_max_len ||
8794 pat_len < coalesce->pattern_min_len)
8795 return -EINVAL;
8796
8797 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8798 pkt_offset = 0;
8799 else
8800 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8801 if (pkt_offset > coalesce->max_pkt_offset)
8802 return -EINVAL;
8803 new_rule->patterns[i].pkt_offset = pkt_offset;
8804
8805 new_rule->patterns[i].mask =
8806 kmalloc(mask_len + pat_len, GFP_KERNEL);
8807 if (!new_rule->patterns[i].mask)
8808 return -ENOMEM;
8809 new_rule->patterns[i].pattern =
8810 new_rule->patterns[i].mask + mask_len;
8811 memcpy(new_rule->patterns[i].mask,
8812 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8813 new_rule->patterns[i].pattern_len = pat_len;
8814 memcpy(new_rule->patterns[i].pattern,
8815 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8816 i++;
8817 }
8818
8819 return 0;
8820}
8821
8822static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8823{
8824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8825 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8826 struct cfg80211_coalesce new_coalesce = {};
8827 struct cfg80211_coalesce *n_coalesce;
8828 int err, rem_rule, n_rules = 0, i, j;
8829 struct nlattr *rule;
8830 struct cfg80211_coalesce_rules *tmp_rule;
8831
8832 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8833 return -EOPNOTSUPP;
8834
8835 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8836 cfg80211_rdev_free_coalesce(rdev);
8837 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8838 return 0;
8839 }
8840
8841 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8842 rem_rule)
8843 n_rules++;
8844 if (n_rules > coalesce->n_rules)
8845 return -EINVAL;
8846
8847 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8848 GFP_KERNEL);
8849 if (!new_coalesce.rules)
8850 return -ENOMEM;
8851
8852 new_coalesce.n_rules = n_rules;
8853 i = 0;
8854
8855 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8856 rem_rule) {
8857 err = nl80211_parse_coalesce_rule(rdev, rule,
8858 &new_coalesce.rules[i]);
8859 if (err)
8860 goto error;
8861
8862 i++;
8863 }
8864
8865 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8866 if (err)
8867 goto error;
8868
8869 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8870 if (!n_coalesce) {
8871 err = -ENOMEM;
8872 goto error;
8873 }
8874 cfg80211_rdev_free_coalesce(rdev);
8875 rdev->coalesce = n_coalesce;
8876
8877 return 0;
8878error:
8879 for (i = 0; i < new_coalesce.n_rules; i++) {
8880 tmp_rule = &new_coalesce.rules[i];
8881 for (j = 0; j < tmp_rule->n_patterns; j++)
8882 kfree(tmp_rule->patterns[j].mask);
8883 kfree(tmp_rule->patterns);
8884 }
8885 kfree(new_coalesce.rules);
8886
8887 return err;
8888}
8889
e5497d76
JB		 8890static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8891{
8892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8893 struct net_device *dev = info->user_ptr[1];
8894 struct wireless_dev *wdev = dev->ieee80211_ptr;
8895 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8896 struct cfg80211_gtk_rekey_data rekey_data;
8897 int err;
8898
8899 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8900 return -EINVAL;
8901
8902 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8903 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8904 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8905 nl80211_rekey_policy);
8906 if (err)
8907 return err;
8908
8909 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8910 return -ERANGE;
8911 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8912 return -ERANGE;
8913 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8914 return -ERANGE;
8915
8916 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8917 NL80211_KEK_LEN);
8918 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8919 NL80211_KCK_LEN);
8920 memcpy(rekey_data.replay_ctr,
8921 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8922 NL80211_REPLAY_CTR_LEN);
8923
8924 wdev_lock(wdev);
8925 if (!wdev->current_bss) {
8926 err = -ENOTCONN;
8927 goto out;
8928 }
8929
8930 if (!rdev->ops->set_rekey_data) {
8931 err = -EOPNOTSUPP;
8932 goto out;
8933 }
8934
e35e4d28 8935 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8936 out:
8937 wdev_unlock(wdev);
8938 return err;
8939}
8940
28946da7
JB		 8941static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8942 struct genl_info *info)
8943{
8944 struct net_device *dev = info->user_ptr[1];
8945 struct wireless_dev *wdev = dev->ieee80211_ptr;
8946
8947 if (wdev->iftype != NL80211_IFTYPE_AP &&
8948 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8949 return -EINVAL;
8950
15e47304 8951 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8952 return -EBUSY;
8953
15e47304 8954 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8955 return 0;
8956}
8957
7f6cf311
JB		 8958static int nl80211_probe_client(struct sk_buff *skb,
8959 struct genl_info *info)
8960{
8961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8962 struct net_device *dev = info->user_ptr[1];
8963 struct wireless_dev *wdev = dev->ieee80211_ptr;
8964 struct sk_buff *msg;
8965 void *hdr;
8966 const u8 *addr;
8967 u64 cookie;
8968 int err;
8969
8970 if (wdev->iftype != NL80211_IFTYPE_AP &&
8971 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8972 return -EOPNOTSUPP;
8973
8974 if (!info->attrs[NL80211_ATTR_MAC])
8975 return -EINVAL;
8976
8977 if (!rdev->ops->probe_client)
8978 return -EOPNOTSUPP;
8979
8980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8981 if (!msg)
8982 return -ENOMEM;
8983
15e47304 8984 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8985 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8986 if (!hdr) {
8987 err = -ENOBUFS;
7f6cf311
JB		 8988 goto free_msg;
8989 }
8990
8991 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8992
e35e4d28 8993 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8994 if (err)
8995 goto free_msg;
8996
9360ffd1
DM		 8997 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8998 goto nla_put_failure;
7f6cf311
JB		 8999
9000 genlmsg_end(msg, hdr);
9001
9002 return genlmsg_reply(msg, info);
9003
9004 nla_put_failure:
9005 err = -ENOBUFS;
9006 free_msg:
9007 nlmsg_free(msg);
9008 return err;
9009}
9010
5e760230
JB		 9011static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9012{
9013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9014 struct cfg80211_beacon_registration *reg, *nreg;
9015 int rv;
5e760230
JB		 9016
9017 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9018 return -EOPNOTSUPP;
9019
37c73b5f
BG		 9020 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9021 if (!nreg)
9022 return -ENOMEM;
9023
9024 /* First, check if already registered. */
9025 spin_lock_bh(&rdev->beacon_registrations_lock);
9026 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9027 if (reg->nlportid == info->snd_portid) {
9028 rv = -EALREADY;
9029 goto out_err;
9030 }
9031 }
9032 /* Add it to the list */
9033 nreg->nlportid = info->snd_portid;
9034 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9035
37c73b5f 9036 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9037
9038 return 0;
37c73b5f
BG		 9039out_err:
9040 spin_unlock_bh(&rdev->beacon_registrations_lock);
9041 kfree(nreg);
9042 return rv;
5e760230
JB		 9043}
9044
98104fde
JB		 9045static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9046{
9047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9048 struct wireless_dev *wdev = info->user_ptr[1];
9049 int err;
9050
9051 if (!rdev->ops->start_p2p_device)
9052 return -EOPNOTSUPP;
9053
9054 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9055 return -EOPNOTSUPP;
9056
9057 if (wdev->p2p_started)
9058 return 0;
9059
b6a55015
LC		 9060 if (rfkill_blocked(rdev->rfkill))
9061 return -ERFKILL;
98104fde 9062
eeb126e9 9063 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9064 if (err)
9065 return err;
9066
9067 wdev->p2p_started = true;
98104fde 9068 rdev->opencount++;
98104fde
JB		 9069
9070 return 0;
9071}
9072
9073static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9074{
9075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9076 struct wireless_dev *wdev = info->user_ptr[1];
9077
9078 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9079 return -EOPNOTSUPP;
9080
9081 if (!rdev->ops->stop_p2p_device)
9082 return -EOPNOTSUPP;
9083
f9f47529 9084 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9085
9086 return 0;
9087}
9088
3713b4e3
JB		 9089static int nl80211_get_protocol_features(struct sk_buff *skb,
9090 struct genl_info *info)
9091{
9092 void *hdr;
9093 struct sk_buff *msg;
9094
9095 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9096 if (!msg)
9097 return -ENOMEM;
9098
9099 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9100 NL80211_CMD_GET_PROTOCOL_FEATURES);
9101 if (!hdr)
9102 goto nla_put_failure;
9103
9104 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9105 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9106 goto nla_put_failure;
9107
9108 genlmsg_end(msg, hdr);
9109 return genlmsg_reply(msg, info);
9110
9111 nla_put_failure:
9112 kfree_skb(msg);
9113 return -ENOBUFS;
9114}
9115
355199e0
JM		 9116static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9117{
9118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9119 struct cfg80211_update_ft_ies_params ft_params;
9120 struct net_device *dev = info->user_ptr[1];
9121
9122 if (!rdev->ops->update_ft_ies)
9123 return -EOPNOTSUPP;
9124
9125 if (!info->attrs[NL80211_ATTR_MDID] ||
9126 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9127 return -EINVAL;
9128
9129 memset(&ft_params, 0, sizeof(ft_params));
9130 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9131 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9132 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9133
9134 return rdev_update_ft_ies(rdev, dev, &ft_params);
9135}
9136
5de17984
AS		 9137static int nl80211_crit_protocol_start(struct sk_buff *skb,
9138 struct genl_info *info)
9139{
9140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9141 struct wireless_dev *wdev = info->user_ptr[1];
9142 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9143 u16 duration;
9144 int ret;
9145
9146 if (!rdev->ops->crit_proto_start)
9147 return -EOPNOTSUPP;
9148
9149 if (WARN_ON(!rdev->ops->crit_proto_stop))
9150 return -EINVAL;
9151
9152 if (rdev->crit_proto_nlportid)
9153 return -EBUSY;
9154
9155 /* determine protocol if provided */
9156 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9157 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9158
9159 if (proto >= NUM_NL80211_CRIT_PROTO)
9160 return -EINVAL;
9161
9162 /* timeout must be provided */
9163 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9164 return -EINVAL;
9165
9166 duration =
9167 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9168
9169 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9170 return -ERANGE;
9171
9172 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9173 if (!ret)
9174 rdev->crit_proto_nlportid = info->snd_portid;
9175
9176 return ret;
9177}
9178
9179static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9180 struct genl_info *info)
9181{
9182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9183 struct wireless_dev *wdev = info->user_ptr[1];
9184
9185 if (!rdev->ops->crit_proto_stop)
9186 return -EOPNOTSUPP;
9187
9188 if (rdev->crit_proto_nlportid) {
9189 rdev->crit_proto_nlportid = 0;
9190 rdev_crit_proto_stop(rdev, wdev);
9191 }
9192 return 0;
9193}
9194
ad7e718c
JB		 9195static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9196{
9197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9198 struct wireless_dev *wdev =
9199 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9200 int i, err;
9201 u32 vid, subcmd;
9202
9203 if (!rdev->wiphy.vendor_commands)
9204 return -EOPNOTSUPP;
9205
9206 if (IS_ERR(wdev)) {
9207 err = PTR_ERR(wdev);
9208 if (err != -EINVAL)
9209 return err;
9210 wdev = NULL;
9211 } else if (wdev->wiphy != &rdev->wiphy) {
9212 return -EINVAL;
9213 }
9214
9215 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9216 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9217 return -EINVAL;
9218
9219 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9220 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9221 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9222 const struct wiphy_vendor_command *vcmd;
9223 void *data = NULL;
9224 int len = 0;
9225
9226 vcmd = &rdev->wiphy.vendor_commands[i];
9227
9228 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9229 continue;
9230
9231 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9232 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9233 if (!wdev)
9234 return -EINVAL;
9235 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9236 !wdev->netdev)
9237 return -EINVAL;
9238
9239 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9240 if (wdev->netdev &&
9241 !netif_running(wdev->netdev))
9242 return -ENETDOWN;
9243 if (!wdev->netdev && !wdev->p2p_started)
9244 return -ENETDOWN;
9245 }
9246 } else {
9247 wdev = NULL;
9248 }
9249
9250 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9251 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9252 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9253 }
9254
9255 rdev->cur_cmd_info = info;
9256 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9257 data, len);
9258 rdev->cur_cmd_info = NULL;
9259 return err;
9260 }
9261
9262 return -EOPNOTSUPP;
9263}
9264
9265struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9266 enum nl80211_commands cmd,
9267 enum nl80211_attrs attr,
9268 int approxlen)
9269{
f26cbf40 9270 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9271
9272 if (WARN_ON(!rdev->cur_cmd_info))
9273 return NULL;
9274
9275 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9276 rdev->cur_cmd_info->snd_portid,
9277 rdev->cur_cmd_info->snd_seq,
567ffc35 9278 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9279}
9280EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9281
9282int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9283{
9284 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9285 void *hdr = ((void **)skb->cb)[1];
9286 struct nlattr *data = ((void **)skb->cb)[2];
9287
9288 if (WARN_ON(!rdev->cur_cmd_info)) {
9289 kfree_skb(skb);
9290 return -EINVAL;
9291 }
9292
9293 nla_nest_end(skb, data);
9294 genlmsg_end(skb, hdr);
9295 return genlmsg_reply(skb, rdev->cur_cmd_info);
9296}
9297EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9298
9299
fa9ffc74
KP		 9300static int nl80211_set_qos_map(struct sk_buff *skb,
9301 struct genl_info *info)
9302{
9303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9304 struct cfg80211_qos_map *qos_map = NULL;
9305 struct net_device *dev = info->user_ptr[1];
9306 u8 *pos, len, num_des, des_len, des;
9307 int ret;
9308
9309 if (!rdev->ops->set_qos_map)
9310 return -EOPNOTSUPP;
9311
9312 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9313 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9314 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9315
9316 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9317 len > IEEE80211_QOS_MAP_LEN_MAX)
9318 return -EINVAL;
9319
9320 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9321 if (!qos_map)
9322 return -ENOMEM;
9323
9324 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9325 if (num_des) {
9326 des_len = num_des *
9327 sizeof(struct cfg80211_dscp_exception);
9328 memcpy(qos_map->dscp_exception, pos, des_len);
9329 qos_map->num_des = num_des;
9330 for (des = 0; des < num_des; des++) {
9331 if (qos_map->dscp_exception[des].up > 7) {
9332 kfree(qos_map);
9333 return -EINVAL;
9334 }
9335 }
9336 pos += des_len;
9337 }
9338 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9339 }
9340
9341 wdev_lock(dev->ieee80211_ptr);
9342 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9343 if (!ret)
9344 ret = rdev_set_qos_map(rdev, dev, qos_map);
9345 wdev_unlock(dev->ieee80211_ptr);
9346
9347 kfree(qos_map);
9348 return ret;
9349}
9350
4c476991
JB		 9351#define NL80211_FLAG_NEED_WIPHY 0x01
9352#define NL80211_FLAG_NEED_NETDEV 0x02
9353#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9354#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9355#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9356 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9357#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9358/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9359#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9360 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9361
f84f771d 9362static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9363 struct genl_info *info)
9364{
9365 struct cfg80211_registered_device *rdev;
89a54e48 9366 struct wireless_dev *wdev;
4c476991 9367 struct net_device *dev;
4c476991
JB		 9368 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9369
9370 if (rtnl)
9371 rtnl_lock();
9372
9373 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9374 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9375 if (IS_ERR(rdev)) {
9376 if (rtnl)
9377 rtnl_unlock();
9378 return PTR_ERR(rdev);
9379 }
9380 info->user_ptr[0] = rdev;
1bf614ef
JB		 9381 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9382 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9383 ASSERT_RTNL();
9384
89a54e48
JB		 9385 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9386 info->attrs);
9387 if (IS_ERR(wdev)) {
4c476991
JB		 9388 if (rtnl)
9389 rtnl_unlock();
89a54e48 9390 return PTR_ERR(wdev);
4c476991 9391 }
89a54e48 9392
89a54e48 9393 dev = wdev->netdev;
f26cbf40 9394 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9395
1bf614ef
JB		 9396 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9397 if (!dev) {
1bf614ef
JB		 9398 if (rtnl)
9399 rtnl_unlock();
9400 return -EINVAL;
9401 }
9402
9403 info->user_ptr[1] = dev;
9404 } else {
9405 info->user_ptr[1] = wdev;
41265714 9406 }
1bf614ef
JB		 9407
9408 if (dev) {
9409 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9410 !netif_running(dev)) {
1bf614ef
JB		 9411 if (rtnl)
9412 rtnl_unlock();
9413 return -ENETDOWN;
9414 }
9415
9416 dev_hold(dev);
98104fde
JB		 9417 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9418 if (!wdev->p2p_started) {
98104fde
JB		 9419 if (rtnl)
9420 rtnl_unlock();
9421 return -ENETDOWN;
9422 }
41265714 9423 }
89a54e48 9424
4c476991 9425 info->user_ptr[0] = rdev;
4c476991
JB		 9426 }
9427
9428 return 0;
9429}
9430
f84f771d 9431static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9432 struct genl_info *info)
9433{
1bf614ef
JB		 9434 if (info->user_ptr[1]) {
9435 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9436 struct wireless_dev *wdev = info->user_ptr[1];
9437
9438 if (wdev->netdev)
9439 dev_put(wdev->netdev);
9440 } else {
9441 dev_put(info->user_ptr[1]);
9442 }
9443 }
4c476991
JB		 9444 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9445 rtnl_unlock();
9446}
9447
4534de83 9448static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9449 {
9450 .cmd = NL80211_CMD_GET_WIPHY,
9451 .doit = nl80211_get_wiphy,
9452 .dumpit = nl80211_dump_wiphy,
86e8cf98 9453 .done = nl80211_dump_wiphy_done,
55682965
JB		 9454 .policy = nl80211_policy,
9455 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9456 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9457 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9458 },
9459 {
9460 .cmd = NL80211_CMD_SET_WIPHY,
9461 .doit = nl80211_set_wiphy,
9462 .policy = nl80211_policy,
9463 .flags = GENL_ADMIN_PERM,
4c476991 9464 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9465 },
9466 {
9467 .cmd = NL80211_CMD_GET_INTERFACE,
9468 .doit = nl80211_get_interface,
9469 .dumpit = nl80211_dump_interface,
9470 .policy = nl80211_policy,
9471 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9472 .internal_flags = NL80211_FLAG_NEED_WDEV |
9473 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9474 },
9475 {
9476 .cmd = NL80211_CMD_SET_INTERFACE,
9477 .doit = nl80211_set_interface,
9478 .policy = nl80211_policy,
9479 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9480 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9481 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9482 },
9483 {
9484 .cmd = NL80211_CMD_NEW_INTERFACE,
9485 .doit = nl80211_new_interface,
9486 .policy = nl80211_policy,
9487 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9488 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9489 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9490 },
9491 {
9492 .cmd = NL80211_CMD_DEL_INTERFACE,
9493 .doit = nl80211_del_interface,
9494 .policy = nl80211_policy,
41ade00f 9495 .flags = GENL_ADMIN_PERM,
84efbb84 9496 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9497 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9498 },
9499 {
9500 .cmd = NL80211_CMD_GET_KEY,
9501 .doit = nl80211_get_key,
9502 .policy = nl80211_policy,
9503 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9505 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9506 },
9507 {
9508 .cmd = NL80211_CMD_SET_KEY,
9509 .doit = nl80211_set_key,
9510 .policy = nl80211_policy,
9511 .flags = GENL_ADMIN_PERM,
41265714 9512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9513 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9514 },
9515 {
9516 .cmd = NL80211_CMD_NEW_KEY,
9517 .doit = nl80211_new_key,
9518 .policy = nl80211_policy,
9519 .flags = GENL_ADMIN_PERM,
41265714 9520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9521 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9522 },
9523 {
9524 .cmd = NL80211_CMD_DEL_KEY,
9525 .doit = nl80211_del_key,
9526 .policy = nl80211_policy,
55682965 9527 .flags = GENL_ADMIN_PERM,
41265714 9528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9529 NL80211_FLAG_NEED_RTNL,
55682965 9530 },
ed1b6cc7
JB		 9531 {
9532 .cmd = NL80211_CMD_SET_BEACON,
9533 .policy = nl80211_policy,
9534 .flags = GENL_ADMIN_PERM,
8860020e 9535 .doit = nl80211_set_beacon,
2b5f8b0b 9536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9537 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9538 },
9539 {
8860020e 9540 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9541 .policy = nl80211_policy,
9542 .flags = GENL_ADMIN_PERM,
8860020e 9543 .doit = nl80211_start_ap,
2b5f8b0b 9544 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9545 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9546 },
9547 {
8860020e 9548 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9549 .policy = nl80211_policy,
9550 .flags = GENL_ADMIN_PERM,
8860020e 9551 .doit = nl80211_stop_ap,
2b5f8b0b 9552 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9553 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9554 },
5727ef1b
JB		 9555 {
9556 .cmd = NL80211_CMD_GET_STATION,
9557 .doit = nl80211_get_station,
2ec600d6 9558 .dumpit = nl80211_dump_station,
5727ef1b 9559 .policy = nl80211_policy,
4c476991
JB		 9560 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9561 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9562 },
9563 {
9564 .cmd = NL80211_CMD_SET_STATION,
9565 .doit = nl80211_set_station,
9566 .policy = nl80211_policy,
9567 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9569 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9570 },
9571 {
9572 .cmd = NL80211_CMD_NEW_STATION,
9573 .doit = nl80211_new_station,
9574 .policy = nl80211_policy,
9575 .flags = GENL_ADMIN_PERM,
41265714 9576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9577 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9578 },
9579 {
9580 .cmd = NL80211_CMD_DEL_STATION,
9581 .doit = nl80211_del_station,
9582 .policy = nl80211_policy,
2ec600d6 9583 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9585 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9586 },
9587 {
9588 .cmd = NL80211_CMD_GET_MPATH,
9589 .doit = nl80211_get_mpath,
9590 .dumpit = nl80211_dump_mpath,
9591 .policy = nl80211_policy,
9592 .flags = GENL_ADMIN_PERM,
41265714 9593 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9594 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9595 },
9596 {
9597 .cmd = NL80211_CMD_SET_MPATH,
9598 .doit = nl80211_set_mpath,
9599 .policy = nl80211_policy,
9600 .flags = GENL_ADMIN_PERM,
41265714 9601 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9602 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9603 },
9604 {
9605 .cmd = NL80211_CMD_NEW_MPATH,
9606 .doit = nl80211_new_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_DEL_MPATH,
9614 .doit = nl80211_del_mpath,
9615 .policy = nl80211_policy,
9f1ba906 9616 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9618 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9619 },
9620 {
9621 .cmd = NL80211_CMD_SET_BSS,
9622 .doit = nl80211_set_bss,
9623 .policy = nl80211_policy,
b2e1b302 9624 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9626 NL80211_FLAG_NEED_RTNL,
b2e1b302 9627 },
f130347c
LR		 9628 {
9629 .cmd = NL80211_CMD_GET_REG,
9630 .doit = nl80211_get_reg,
9631 .policy = nl80211_policy,
5fe231e8 9632 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9633 /* can be retrieved by unprivileged users */
9634 },
b2e1b302
LR		 9635 {
9636 .cmd = NL80211_CMD_SET_REG,
9637 .doit = nl80211_set_reg,
9638 .policy = nl80211_policy,
9639 .flags = GENL_ADMIN_PERM,
5fe231e8 9640 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9641 },
9642 {
9643 .cmd = NL80211_CMD_REQ_SET_REG,
9644 .doit = nl80211_req_set_reg,
9645 .policy = nl80211_policy,
93da9cc1 9646 .flags = GENL_ADMIN_PERM,
9647 },
9648 {
24bdd9f4
JC		 9649 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9650 .doit = nl80211_get_mesh_config,
93da9cc1 9651 .policy = nl80211_policy,
9652 /* can be retrieved by unprivileged users */
2b5f8b0b 9653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9654 NL80211_FLAG_NEED_RTNL,
93da9cc1 9655 },
9656 {
24bdd9f4
JC		 9657 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9658 .doit = nl80211_update_mesh_config,
93da9cc1 9659 .policy = nl80211_policy,
9aed3cc1 9660 .flags = GENL_ADMIN_PERM,
29cbe68c 9661 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9662 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9663 },
2a519311
JB		 9664 {
9665 .cmd = NL80211_CMD_TRIGGER_SCAN,
9666 .doit = nl80211_trigger_scan,
9667 .policy = nl80211_policy,
9668 .flags = GENL_ADMIN_PERM,
fd014284 9669 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9670 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9671 },
9672 {
9673 .cmd = NL80211_CMD_GET_SCAN,
9674 .policy = nl80211_policy,
9675 .dumpit = nl80211_dump_scan,
9676 },
807f8a8c
LC		 9677 {
9678 .cmd = NL80211_CMD_START_SCHED_SCAN,
9679 .doit = nl80211_start_sched_scan,
9680 .policy = nl80211_policy,
9681 .flags = GENL_ADMIN_PERM,
9682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9683 NL80211_FLAG_NEED_RTNL,
9684 },
9685 {
9686 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9687 .doit = nl80211_stop_sched_scan,
9688 .policy = nl80211_policy,
9689 .flags = GENL_ADMIN_PERM,
9690 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9691 NL80211_FLAG_NEED_RTNL,
9692 },
636a5d36
JM		 9693 {
9694 .cmd = NL80211_CMD_AUTHENTICATE,
9695 .doit = nl80211_authenticate,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
41265714 9698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9699 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9700 },
9701 {
9702 .cmd = NL80211_CMD_ASSOCIATE,
9703 .doit = nl80211_associate,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
41265714 9706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9707 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9708 },
9709 {
9710 .cmd = NL80211_CMD_DEAUTHENTICATE,
9711 .doit = nl80211_deauthenticate,
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_DISASSOCIATE,
9719 .doit = nl80211_disassociate,
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 9724 },
04a773ad
JB		 9725 {
9726 .cmd = NL80211_CMD_JOIN_IBSS,
9727 .doit = nl80211_join_ibss,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
41265714 9730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9731 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9732 },
9733 {
9734 .cmd = NL80211_CMD_LEAVE_IBSS,
9735 .doit = nl80211_leave_ibss,
9736 .policy = nl80211_policy,
9737 .flags = GENL_ADMIN_PERM,
41265714 9738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9739 NL80211_FLAG_NEED_RTNL,
04a773ad 9740 },
aff89a9b
JB		 9741#ifdef CONFIG_NL80211_TESTMODE
9742 {
9743 .cmd = NL80211_CMD_TESTMODE,
9744 .doit = nl80211_testmode_do,
71063f0e 9745 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9746 .policy = nl80211_policy,
9747 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9748 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9749 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9750 },
9751#endif
b23aa676
SO		 9752 {
9753 .cmd = NL80211_CMD_CONNECT,
9754 .doit = nl80211_connect,
9755 .policy = nl80211_policy,
9756 .flags = GENL_ADMIN_PERM,
41265714 9757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9758 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9759 },
9760 {
9761 .cmd = NL80211_CMD_DISCONNECT,
9762 .doit = nl80211_disconnect,
9763 .policy = nl80211_policy,
9764 .flags = GENL_ADMIN_PERM,
41265714 9765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9766 NL80211_FLAG_NEED_RTNL,
b23aa676 9767 },
463d0183
JB		 9768 {
9769 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9770 .doit = nl80211_wiphy_netns,
9771 .policy = nl80211_policy,
9772 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9773 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9774 NL80211_FLAG_NEED_RTNL,
463d0183 9775 },
61fa713c
HS		 9776 {
9777 .cmd = NL80211_CMD_GET_SURVEY,
9778 .policy = nl80211_policy,
9779 .dumpit = nl80211_dump_survey,
9780 },
67fbb16b
SO		 9781 {
9782 .cmd = NL80211_CMD_SET_PMKSA,
9783 .doit = nl80211_setdel_pmksa,
9784 .policy = nl80211_policy,
9785 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9786 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9787 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9788 },
9789 {
9790 .cmd = NL80211_CMD_DEL_PMKSA,
9791 .doit = nl80211_setdel_pmksa,
9792 .policy = nl80211_policy,
9793 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9795 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9796 },
9797 {
9798 .cmd = NL80211_CMD_FLUSH_PMKSA,
9799 .doit = nl80211_flush_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 9804 },
9588bbd5
JM		 9805 {
9806 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9807 .doit = nl80211_remain_on_channel,
9808 .policy = nl80211_policy,
9809 .flags = GENL_ADMIN_PERM,
71bbc994 9810 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9811 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9812 },
9813 {
9814 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9815 .doit = nl80211_cancel_remain_on_channel,
9816 .policy = nl80211_policy,
9817 .flags = GENL_ADMIN_PERM,
71bbc994 9818 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9819 NL80211_FLAG_NEED_RTNL,
9588bbd5 9820 },
13ae75b1
JM		 9821 {
9822 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9823 .doit = nl80211_set_tx_bitrate_mask,
9824 .policy = nl80211_policy,
9825 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9826 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9827 NL80211_FLAG_NEED_RTNL,
13ae75b1 9828 },
026331c4 9829 {
2e161f78
JB		 9830 .cmd = NL80211_CMD_REGISTER_FRAME,
9831 .doit = nl80211_register_mgmt,
026331c4
JM		 9832 .policy = nl80211_policy,
9833 .flags = GENL_ADMIN_PERM,
71bbc994 9834 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9835 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9836 },
9837 {
2e161f78
JB		 9838 .cmd = NL80211_CMD_FRAME,
9839 .doit = nl80211_tx_mgmt,
026331c4 9840 .policy = nl80211_policy,
f7ca38df 9841 .flags = GENL_ADMIN_PERM,
71bbc994 9842 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9843 NL80211_FLAG_NEED_RTNL,
9844 },
9845 {
9846 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9847 .doit = nl80211_tx_mgmt_cancel_wait,
9848 .policy = nl80211_policy,
026331c4 9849 .flags = GENL_ADMIN_PERM,
71bbc994 9850 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9851 NL80211_FLAG_NEED_RTNL,
026331c4 9852 },
ffb9eb3d
KV		 9853 {
9854 .cmd = NL80211_CMD_SET_POWER_SAVE,
9855 .doit = nl80211_set_power_save,
9856 .policy = nl80211_policy,
9857 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9858 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9859 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9860 },
9861 {
9862 .cmd = NL80211_CMD_GET_POWER_SAVE,
9863 .doit = nl80211_get_power_save,
9864 .policy = nl80211_policy,
9865 /* can be retrieved by unprivileged users */
4c476991
JB		 9866 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9867 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9868 },
d6dc1a38
JO		 9869 {
9870 .cmd = NL80211_CMD_SET_CQM,
9871 .doit = nl80211_set_cqm,
9872 .policy = nl80211_policy,
9873 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9874 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9875 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9876 },
f444de05
JB		 9877 {
9878 .cmd = NL80211_CMD_SET_CHANNEL,
9879 .doit = nl80211_set_channel,
9880 .policy = nl80211_policy,
9881 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9882 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9883 NL80211_FLAG_NEED_RTNL,
f444de05 9884 },
e8347eba
BJ		 9885 {
9886 .cmd = NL80211_CMD_SET_WDS_PEER,
9887 .doit = nl80211_set_wds_peer,
9888 .policy = nl80211_policy,
9889 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9890 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9891 NL80211_FLAG_NEED_RTNL,
e8347eba 9892 },
29cbe68c
JB		 9893 {
9894 .cmd = NL80211_CMD_JOIN_MESH,
9895 .doit = nl80211_join_mesh,
9896 .policy = nl80211_policy,
9897 .flags = GENL_ADMIN_PERM,
9898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9899 NL80211_FLAG_NEED_RTNL,
9900 },
9901 {
9902 .cmd = NL80211_CMD_LEAVE_MESH,
9903 .doit = nl80211_leave_mesh,
9904 .policy = nl80211_policy,
9905 .flags = GENL_ADMIN_PERM,
9906 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9907 NL80211_FLAG_NEED_RTNL,
9908 },
dfb89c56 9909#ifdef CONFIG_PM
ff1b6e69
JB		 9910 {
9911 .cmd = NL80211_CMD_GET_WOWLAN,
9912 .doit = nl80211_get_wowlan,
9913 .policy = nl80211_policy,
9914 /* can be retrieved by unprivileged users */
9915 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9916 NL80211_FLAG_NEED_RTNL,
9917 },
9918 {
9919 .cmd = NL80211_CMD_SET_WOWLAN,
9920 .doit = nl80211_set_wowlan,
9921 .policy = nl80211_policy,
9922 .flags = GENL_ADMIN_PERM,
9923 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9924 NL80211_FLAG_NEED_RTNL,
9925 },
dfb89c56 9926#endif
e5497d76
JB		 9927 {
9928 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9929 .doit = nl80211_set_rekey_data,
9930 .policy = nl80211_policy,
9931 .flags = GENL_ADMIN_PERM,
9932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9933 NL80211_FLAG_NEED_RTNL,
9934 },
109086ce
AN		 9935 {
9936 .cmd = NL80211_CMD_TDLS_MGMT,
9937 .doit = nl80211_tdls_mgmt,
9938 .policy = nl80211_policy,
9939 .flags = GENL_ADMIN_PERM,
9940 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9941 NL80211_FLAG_NEED_RTNL,
9942 },
9943 {
9944 .cmd = NL80211_CMD_TDLS_OPER,
9945 .doit = nl80211_tdls_oper,
9946 .policy = nl80211_policy,
9947 .flags = GENL_ADMIN_PERM,
9948 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9949 NL80211_FLAG_NEED_RTNL,
9950 },
28946da7
JB		 9951 {
9952 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9953 .doit = nl80211_register_unexpected_frame,
9954 .policy = nl80211_policy,
9955 .flags = GENL_ADMIN_PERM,
9956 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9957 NL80211_FLAG_NEED_RTNL,
9958 },
7f6cf311
JB		 9959 {
9960 .cmd = NL80211_CMD_PROBE_CLIENT,
9961 .doit = nl80211_probe_client,
9962 .policy = nl80211_policy,
9963 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9965 NL80211_FLAG_NEED_RTNL,
9966 },
5e760230
JB		 9967 {
9968 .cmd = NL80211_CMD_REGISTER_BEACONS,
9969 .doit = nl80211_register_beacons,
9970 .policy = nl80211_policy,
9971 .flags = GENL_ADMIN_PERM,
9972 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9973 NL80211_FLAG_NEED_RTNL,
9974 },
1d9d9213
SW		 9975 {
9976 .cmd = NL80211_CMD_SET_NOACK_MAP,
9977 .doit = nl80211_set_noack_map,
9978 .policy = nl80211_policy,
9979 .flags = GENL_ADMIN_PERM,
9980 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9981 NL80211_FLAG_NEED_RTNL,
9982 },
98104fde
JB		 9983 {
9984 .cmd = NL80211_CMD_START_P2P_DEVICE,
9985 .doit = nl80211_start_p2p_device,
9986 .policy = nl80211_policy,
9987 .flags = GENL_ADMIN_PERM,
9988 .internal_flags = NL80211_FLAG_NEED_WDEV |
9989 NL80211_FLAG_NEED_RTNL,
9990 },
9991 {
9992 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9993 .doit = nl80211_stop_p2p_device,
9994 .policy = nl80211_policy,
9995 .flags = GENL_ADMIN_PERM,
9996 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9997 NL80211_FLAG_NEED_RTNL,
9998 },
f4e583c8
AQ		 9999 {
10000 .cmd = NL80211_CMD_SET_MCAST_RATE,
10001 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10002 .policy = nl80211_policy,
10003 .flags = GENL_ADMIN_PERM,
10004 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10005 NL80211_FLAG_NEED_RTNL,
10006 },
10007 {
10008 .cmd = NL80211_CMD_SET_MAC_ACL,
10009 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10010 .policy = nl80211_policy,
10011 .flags = GENL_ADMIN_PERM,
10012 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10013 NL80211_FLAG_NEED_RTNL,
10014 },
04f39047
SW		 10015 {
10016 .cmd = NL80211_CMD_RADAR_DETECT,
10017 .doit = nl80211_start_radar_detection,
10018 .policy = nl80211_policy,
10019 .flags = GENL_ADMIN_PERM,
10020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10021 NL80211_FLAG_NEED_RTNL,
10022 },
3713b4e3
JB		 10023 {
10024 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10025 .doit = nl80211_get_protocol_features,
10026 .policy = nl80211_policy,
10027 },
355199e0
JM		 10028 {
10029 .cmd = NL80211_CMD_UPDATE_FT_IES,
10030 .doit = nl80211_update_ft_ies,
10031 .policy = nl80211_policy,
10032 .flags = GENL_ADMIN_PERM,
10033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10034 NL80211_FLAG_NEED_RTNL,
10035 },
5de17984
AS		 10036 {
10037 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10038 .doit = nl80211_crit_protocol_start,
10039 .policy = nl80211_policy,
10040 .flags = GENL_ADMIN_PERM,
10041 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10042 NL80211_FLAG_NEED_RTNL,
10043 },
10044 {
10045 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10046 .doit = nl80211_crit_protocol_stop,
10047 .policy = nl80211_policy,
10048 .flags = GENL_ADMIN_PERM,
10049 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10050 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10051 },
10052 {
10053 .cmd = NL80211_CMD_GET_COALESCE,
10054 .doit = nl80211_get_coalesce,
10055 .policy = nl80211_policy,
10056 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10057 NL80211_FLAG_NEED_RTNL,
10058 },
10059 {
10060 .cmd = NL80211_CMD_SET_COALESCE,
10061 .doit = nl80211_set_coalesce,
10062 .policy = nl80211_policy,
10063 .flags = GENL_ADMIN_PERM,
10064 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10065 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10066 },
10067 {
10068 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10069 .doit = nl80211_channel_switch,
10070 .policy = nl80211_policy,
10071 .flags = GENL_ADMIN_PERM,
10072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10073 NL80211_FLAG_NEED_RTNL,
10074 },
ad7e718c
JB		 10075 {
10076 .cmd = NL80211_CMD_VENDOR,
10077 .doit = nl80211_vendor_cmd,
10078 .policy = nl80211_policy,
10079 .flags = GENL_ADMIN_PERM,
10080 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10081 NL80211_FLAG_NEED_RTNL,
10082 },
fa9ffc74
KP		 10083 {
10084 .cmd = NL80211_CMD_SET_QOS_MAP,
10085 .doit = nl80211_set_qos_map,
10086 .policy = nl80211_policy,
10087 .flags = GENL_ADMIN_PERM,
10088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10089 NL80211_FLAG_NEED_RTNL,
10090 },
55682965 10091};
9588bbd5 10092
55682965
JB		 10093/* notification functions */
10094
10095void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10096{
10097 struct sk_buff *msg;
86e8cf98 10098 struct nl80211_dump_wiphy_state state = {};
55682965 10099
fd2120ca 10100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10101 if (!msg)
10102 return;
10103
86e8cf98 10104 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10105 nlmsg_free(msg);
10106 return;
10107 }
10108
68eb5503 10109 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10110 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10111}
10112
362a415d
JB		 10113static int nl80211_add_scan_req(struct sk_buff *msg,
10114 struct cfg80211_registered_device *rdev)
10115{
10116 struct cfg80211_scan_request *req = rdev->scan_req;
10117 struct nlattr *nest;
10118 int i;
10119
10120 if (WARN_ON(!req))
10121 return 0;
10122
10123 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10124 if (!nest)
10125 goto nla_put_failure;
9360ffd1
DM		 10126 for (i = 0; i < req->n_ssids; i++) {
10127 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10128 goto nla_put_failure;
10129 }
362a415d
JB		 10130 nla_nest_end(msg, nest);
10131
10132 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10133 if (!nest)
10134 goto nla_put_failure;
9360ffd1
DM		 10135 for (i = 0; i < req->n_channels; i++) {
10136 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10137 goto nla_put_failure;
10138 }
362a415d
JB		 10139 nla_nest_end(msg, nest);
10140
9360ffd1
DM		 10141 if (req->ie &&
10142 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10143 goto nla_put_failure;
362a415d 10144
ae917c9f
JB		 10145 if (req->flags &&
10146 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10147 goto nla_put_failure;
ed473771 10148
362a415d
JB		 10149 return 0;
10150 nla_put_failure:
10151 return -ENOBUFS;
10152}
10153
a538e2d5
JB		 10154static int nl80211_send_scan_msg(struct sk_buff *msg,
10155 struct cfg80211_registered_device *rdev,
fd014284 10156 struct wireless_dev *wdev,
15e47304 10157 u32 portid, u32 seq, int flags,
a538e2d5 10158 u32 cmd)
2a519311
JB		 10159{
10160 void *hdr;
10161
15e47304 10162 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10163 if (!hdr)
10164 return -1;
10165
9360ffd1 10166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10167 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10168 wdev->netdev->ifindex)) ||
10169 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10170 goto nla_put_failure;
2a519311 10171
362a415d
JB		 10172 /* ignore errors and send incomplete event anyway */
10173 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10174
10175 return genlmsg_end(msg, hdr);
10176
10177 nla_put_failure:
10178 genlmsg_cancel(msg, hdr);
10179 return -EMSGSIZE;
10180}
10181
807f8a8c
LC		 10182static int
10183nl80211_send_sched_scan_msg(struct sk_buff *msg,
10184 struct cfg80211_registered_device *rdev,
10185 struct net_device *netdev,
15e47304 10186 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10187{
10188 void *hdr;
10189
15e47304 10190 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10191 if (!hdr)
10192 return -1;
10193
9360ffd1
DM		 10194 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10195 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10196 goto nla_put_failure;
807f8a8c
LC		 10197
10198 return genlmsg_end(msg, hdr);
10199
10200 nla_put_failure:
10201 genlmsg_cancel(msg, hdr);
10202 return -EMSGSIZE;
10203}
10204
a538e2d5 10205void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10206 struct wireless_dev *wdev)
a538e2d5
JB		 10207{
10208 struct sk_buff *msg;
10209
58050fce 10210 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10211 if (!msg)
10212 return;
10213
fd014284 10214 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10215 NL80211_CMD_TRIGGER_SCAN) < 0) {
10216 nlmsg_free(msg);
10217 return;
10218 }
10219
68eb5503 10220 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10221 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10222}
10223
f9d15d16
JB		 10224struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10225 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10226{
10227 struct sk_buff *msg;
10228
fd2120ca 10229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10230 if (!msg)
f9d15d16 10231 return NULL;
2a519311 10232
fd014284 10233 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10234 aborted ? NL80211_CMD_SCAN_ABORTED :
10235 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10236 nlmsg_free(msg);
f9d15d16 10237 return NULL;
2a519311
JB		 10238 }
10239
f9d15d16 10240 return msg;
2a519311
JB		 10241}
10242
f9d15d16
JB		 10243void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10244 struct sk_buff *msg)
2a519311 10245{
2a519311
JB		 10246 if (!msg)
10247 return;
10248
68eb5503 10249 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10250 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10251}
10252
807f8a8c
LC		 10253void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10254 struct net_device *netdev)
10255{
10256 struct sk_buff *msg;
10257
10258 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10259 if (!msg)
10260 return;
10261
10262 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10263 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10264 nlmsg_free(msg);
10265 return;
10266 }
10267
68eb5503 10268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10269 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10270}
10271
10272void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10273 struct net_device *netdev, u32 cmd)
10274{
10275 struct sk_buff *msg;
10276
58050fce 10277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10278 if (!msg)
10279 return;
10280
10281 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10282 nlmsg_free(msg);
10283 return;
10284 }
10285
68eb5503 10286 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10287 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10288}
10289
73d54c9e
LR		 10290/*
10291 * This can happen on global regulatory changes or device specific settings
10292 * based on custom world regulatory domains.
10293 */
10294void nl80211_send_reg_change_event(struct regulatory_request *request)
10295{
10296 struct sk_buff *msg;
10297 void *hdr;
10298
fd2120ca 10299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10300 if (!msg)
10301 return;
10302
10303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10304 if (!hdr) {
10305 nlmsg_free(msg);
10306 return;
10307 }
10308
10309 /* Userspace can always count this one always being set */
9360ffd1
DM		 10310 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10311 goto nla_put_failure;
10312
10313 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10314 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10315 NL80211_REGDOM_TYPE_WORLD))
10316 goto nla_put_failure;
10317 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10318 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10319 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10320 goto nla_put_failure;
10321 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10322 request->intersect) {
10323 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10324 NL80211_REGDOM_TYPE_INTERSECTION))
10325 goto nla_put_failure;
10326 } else {
10327 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10328 NL80211_REGDOM_TYPE_COUNTRY) ||
10329 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10330 request->alpha2))
10331 goto nla_put_failure;
10332 }
10333
f4173766 10334 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10335 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10336 goto nla_put_failure;
73d54c9e 10337
3b7b72ee 10338 genlmsg_end(msg, hdr);
73d54c9e 10339
bc43b28c 10340 rcu_read_lock();
68eb5503 10341 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10342 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10343 rcu_read_unlock();
73d54c9e
LR		 10344
10345 return;
10346
10347nla_put_failure:
10348 genlmsg_cancel(msg, hdr);
10349 nlmsg_free(msg);
10350}
10351
6039f6d2
JM		 10352static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10353 struct net_device *netdev,
10354 const u8 *buf, size_t len,
e6d6e342 10355 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10356{
10357 struct sk_buff *msg;
10358 void *hdr;
10359
e6d6e342 10360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10361 if (!msg)
10362 return;
10363
10364 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10365 if (!hdr) {
10366 nlmsg_free(msg);
10367 return;
10368 }
10369
9360ffd1
DM		 10370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10372 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10373 goto nla_put_failure;
6039f6d2 10374
3b7b72ee 10375 genlmsg_end(msg, hdr);
6039f6d2 10376
68eb5503 10377 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10378 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10379 return;
10380
10381 nla_put_failure:
10382 genlmsg_cancel(msg, hdr);
10383 nlmsg_free(msg);
10384}
10385
10386void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10387 struct net_device *netdev, const u8 *buf,
10388 size_t len, gfp_t gfp)
6039f6d2
JM		 10389{
10390 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10391 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10392}
10393
10394void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10395 struct net_device *netdev, const u8 *buf,
e6d6e342 10396 size_t len, gfp_t gfp)
6039f6d2 10397{
e6d6e342
JB		 10398 nl80211_send_mlme_event(rdev, netdev, buf, len,
10399 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10400}
10401
53b46b84 10402void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10403 struct net_device *netdev, const u8 *buf,
10404 size_t len, gfp_t gfp)
6039f6d2
JM		 10405{
10406 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10407 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10408}
10409
53b46b84
JM		 10410void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10411 struct net_device *netdev, const u8 *buf,
e6d6e342 10412 size_t len, gfp_t gfp)
6039f6d2
JM		 10413{
10414 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10415 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10416}
10417
6ff57cf8
JB		 10418void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10419 size_t len)
cf4e594e 10420{
947add36
JB		 10421 struct wireless_dev *wdev = dev->ieee80211_ptr;
10422 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10423 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10424 const struct ieee80211_mgmt *mgmt = (void *)buf;
10425 u32 cmd;
947add36 10426
6ff57cf8
JB		 10427 if (WARN_ON(len < 2))
10428 return;
cf4e594e 10429
6ff57cf8
JB		 10430 if (ieee80211_is_deauth(mgmt->frame_control))
10431 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10432 else
10433 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10434
6ff57cf8
JB		 10435 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10436 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10437}
6ff57cf8 10438EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10439
1b06bb40
LR		 10440static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10441 struct net_device *netdev, int cmd,
e6d6e342 10442 const u8 *addr, gfp_t gfp)
1965c853
JM		 10443{
10444 struct sk_buff *msg;
10445 void *hdr;
10446
e6d6e342 10447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10448 if (!msg)
10449 return;
10450
10451 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10452 if (!hdr) {
10453 nlmsg_free(msg);
10454 return;
10455 }
10456
9360ffd1
DM		 10457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10458 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10459 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10460 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10461 goto nla_put_failure;
1965c853 10462
3b7b72ee 10463 genlmsg_end(msg, hdr);
1965c853 10464
68eb5503 10465 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10466 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10467 return;
10468
10469 nla_put_failure:
10470 genlmsg_cancel(msg, hdr);
10471 nlmsg_free(msg);
10472}
10473
10474void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10475 struct net_device *netdev, const u8 *addr,
10476 gfp_t gfp)
1965c853
JM		 10477{
10478 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10479 addr, gfp);
1965c853
JM		 10480}
10481
10482void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10483 struct net_device *netdev, const u8 *addr,
10484 gfp_t gfp)
1965c853 10485{
e6d6e342
JB		 10486 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10487 addr, gfp);
1965c853
JM		 10488}
10489
b23aa676
SO		 10490void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10491 struct net_device *netdev, const u8 *bssid,
10492 const u8 *req_ie, size_t req_ie_len,
10493 const u8 *resp_ie, size_t resp_ie_len,
10494 u16 status, gfp_t gfp)
10495{
10496 struct sk_buff *msg;
10497 void *hdr;
10498
58050fce 10499 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10500 if (!msg)
10501 return;
10502
10503 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10504 if (!hdr) {
10505 nlmsg_free(msg);
10506 return;
10507 }
10508
9360ffd1
DM		 10509 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10510 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10511 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10512 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10513 (req_ie &&
10514 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10515 (resp_ie &&
10516 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10517 goto nla_put_failure;
b23aa676 10518
3b7b72ee 10519 genlmsg_end(msg, hdr);
b23aa676 10520
68eb5503 10521 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10522 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10523 return;
10524
10525 nla_put_failure:
10526 genlmsg_cancel(msg, hdr);
10527 nlmsg_free(msg);
10528
10529}
10530
10531void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10532 struct net_device *netdev, const u8 *bssid,
10533 const u8 *req_ie, size_t req_ie_len,
10534 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10535{
10536 struct sk_buff *msg;
10537 void *hdr;
10538
58050fce 10539 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10540 if (!msg)
10541 return;
10542
10543 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10544 if (!hdr) {
10545 nlmsg_free(msg);
10546 return;
10547 }
10548
9360ffd1
DM		 10549 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10550 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10551 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10552 (req_ie &&
10553 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10554 (resp_ie &&
10555 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10556 goto nla_put_failure;
b23aa676 10557
3b7b72ee 10558 genlmsg_end(msg, hdr);
b23aa676 10559
68eb5503 10560 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10561 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10562 return;
10563
10564 nla_put_failure:
10565 genlmsg_cancel(msg, hdr);
10566 nlmsg_free(msg);
10567
10568}
10569
10570void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10571 struct net_device *netdev, u16 reason,
667503dd 10572 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10573{
10574 struct sk_buff *msg;
10575 void *hdr;
10576
58050fce 10577 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10578 if (!msg)
10579 return;
10580
10581 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10582 if (!hdr) {
10583 nlmsg_free(msg);
10584 return;
10585 }
10586
9360ffd1
DM		 10587 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10588 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10589 (from_ap && reason &&
10590 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10591 (from_ap &&
10592 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10593 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10594 goto nla_put_failure;
b23aa676 10595
3b7b72ee 10596 genlmsg_end(msg, hdr);
b23aa676 10597
68eb5503 10598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10599 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10600 return;
10601
10602 nla_put_failure:
10603 genlmsg_cancel(msg, hdr);
10604 nlmsg_free(msg);
10605
10606}
10607
04a773ad
JB		 10608void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10609 struct net_device *netdev, const u8 *bssid,
10610 gfp_t gfp)
10611{
10612 struct sk_buff *msg;
10613 void *hdr;
10614
fd2120ca 10615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10616 if (!msg)
10617 return;
10618
10619 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10620 if (!hdr) {
10621 nlmsg_free(msg);
10622 return;
10623 }
10624
9360ffd1
DM		 10625 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10626 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10627 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10628 goto nla_put_failure;
04a773ad 10629
3b7b72ee 10630 genlmsg_end(msg, hdr);
04a773ad 10631
68eb5503 10632 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10633 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10634 return;
10635
10636 nla_put_failure:
10637 genlmsg_cancel(msg, hdr);
10638 nlmsg_free(msg);
10639}
10640
947add36
JB		 10641void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10642 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10643{
947add36 10644 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10645 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10646 struct sk_buff *msg;
10647 void *hdr;
10648
947add36
JB		 10649 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10650 return;
10651
10652 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10653
c93b5e71
JC		 10654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10655 if (!msg)
10656 return;
10657
10658 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10659 if (!hdr) {
10660 nlmsg_free(msg);
10661 return;
10662 }
10663
9360ffd1 10664 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10665 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10666 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10667 (ie_len && ie &&
10668 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10669 goto nla_put_failure;
c93b5e71 10670
3b7b72ee 10671 genlmsg_end(msg, hdr);
c93b5e71 10672
68eb5503 10673 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10674 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10675 return;
10676
10677 nla_put_failure:
10678 genlmsg_cancel(msg, hdr);
10679 nlmsg_free(msg);
10680}
947add36 10681EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10682
a3b8b056
JM		 10683void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10684 struct net_device *netdev, const u8 *addr,
10685 enum nl80211_key_type key_type, int key_id,
e6d6e342 10686 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10687{
10688 struct sk_buff *msg;
10689 void *hdr;
10690
e6d6e342 10691 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10692 if (!msg)
10693 return;
10694
10695 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10696 if (!hdr) {
10697 nlmsg_free(msg);
10698 return;
10699 }
10700
9360ffd1
DM		 10701 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10702 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10703 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10704 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10705 (key_id != -1 &&
10706 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10707 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10708 goto nla_put_failure;
a3b8b056 10709
3b7b72ee 10710 genlmsg_end(msg, hdr);
a3b8b056 10711
68eb5503 10712 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10713 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10714 return;
10715
10716 nla_put_failure:
10717 genlmsg_cancel(msg, hdr);
10718 nlmsg_free(msg);
10719}
10720
6bad8766
LR		 10721void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10722 struct ieee80211_channel *channel_before,
10723 struct ieee80211_channel *channel_after)
10724{
10725 struct sk_buff *msg;
10726 void *hdr;
10727 struct nlattr *nl_freq;
10728
fd2120ca 10729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10730 if (!msg)
10731 return;
10732
10733 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10734 if (!hdr) {
10735 nlmsg_free(msg);
10736 return;
10737 }
10738
10739 /*
10740 * Since we are applying the beacon hint to a wiphy we know its
10741 * wiphy_idx is valid
10742 */
9360ffd1
DM		 10743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10744 goto nla_put_failure;
6bad8766
LR		 10745
10746 /* Before */
10747 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10748 if (!nl_freq)
10749 goto nla_put_failure;
cdc89b97 10750 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10751 goto nla_put_failure;
10752 nla_nest_end(msg, nl_freq);
10753
10754 /* After */
10755 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10756 if (!nl_freq)
10757 goto nla_put_failure;
cdc89b97 10758 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10759 goto nla_put_failure;
10760 nla_nest_end(msg, nl_freq);
10761
3b7b72ee 10762 genlmsg_end(msg, hdr);
6bad8766 10763
463d0183 10764 rcu_read_lock();
68eb5503 10765 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10766 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10767 rcu_read_unlock();
6bad8766
LR		 10768
10769 return;
10770
10771nla_put_failure:
10772 genlmsg_cancel(msg, hdr);
10773 nlmsg_free(msg);
10774}
10775
9588bbd5
JM		 10776static void nl80211_send_remain_on_chan_event(
10777 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10778 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10779 struct ieee80211_channel *chan,
9588bbd5
JM		 10780 unsigned int duration, gfp_t gfp)
10781{
10782 struct sk_buff *msg;
10783 void *hdr;
10784
10785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10786 if (!msg)
10787 return;
10788
10789 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10790 if (!hdr) {
10791 nlmsg_free(msg);
10792 return;
10793 }
10794
9360ffd1 10795 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10796 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10797 wdev->netdev->ifindex)) ||
00f53350 10798 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10799 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10800 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10801 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10802 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10803 goto nla_put_failure;
9588bbd5 10804
9360ffd1
DM		 10805 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10806 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10807 goto nla_put_failure;
9588bbd5 10808
3b7b72ee 10809 genlmsg_end(msg, hdr);
9588bbd5 10810
68eb5503 10811 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10812 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10813 return;
10814
10815 nla_put_failure:
10816 genlmsg_cancel(msg, hdr);
10817 nlmsg_free(msg);
10818}
10819
947add36
JB		 10820void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10821 struct ieee80211_channel *chan,
10822 unsigned int duration, gfp_t gfp)
9588bbd5 10823{
947add36 10824 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10825 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10826
10827 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10828 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10829 rdev, wdev, cookie, chan,
42d97a59 10830 duration, gfp);
9588bbd5 10831}
947add36 10832EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10833
947add36
JB		 10834void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10835 struct ieee80211_channel *chan,
10836 gfp_t gfp)
9588bbd5 10837{
947add36 10838 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10839 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10840
10841 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10842 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10843 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10844}
947add36 10845EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10846
947add36
JB		 10847void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10848 struct station_info *sinfo, gfp_t gfp)
98b62183 10849{
947add36 10850 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10851 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10852 struct sk_buff *msg;
10853
947add36
JB		 10854 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10855
58050fce 10856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10857 if (!msg)
10858 return;
10859
66266b3a
JL		 10860 if (nl80211_send_station(msg, 0, 0, 0,
10861 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10862 nlmsg_free(msg);
10863 return;
10864 }
10865
68eb5503 10866 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10867 NL80211_MCGRP_MLME, gfp);
98b62183 10868}
947add36 10869EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10870
947add36 10871void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10872{
947add36 10873 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10874 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10875 struct sk_buff *msg;
10876 void *hdr;
10877
947add36
JB		 10878 trace_cfg80211_del_sta(dev, mac_addr);
10879
58050fce 10880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10881 if (!msg)
10882 return;
10883
10884 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10885 if (!hdr) {
10886 nlmsg_free(msg);
10887 return;
10888 }
10889
9360ffd1
DM		 10890 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10891 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10892 goto nla_put_failure;
ec15e68b 10893
3b7b72ee 10894 genlmsg_end(msg, hdr);
ec15e68b 10895
68eb5503 10896 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10897 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10898 return;
10899
10900 nla_put_failure:
10901 genlmsg_cancel(msg, hdr);
10902 nlmsg_free(msg);
10903}
947add36 10904EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10905
947add36
JB		 10906void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10907 enum nl80211_connect_failed_reason reason,
10908 gfp_t gfp)
ed44a951 10909{
947add36 10910 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10911 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10912 struct sk_buff *msg;
10913 void *hdr;
10914
10915 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10916 if (!msg)
10917 return;
10918
10919 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10920 if (!hdr) {
10921 nlmsg_free(msg);
10922 return;
10923 }
10924
10925 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10926 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10927 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10928 goto nla_put_failure;
10929
10930 genlmsg_end(msg, hdr);
10931
68eb5503 10932 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10933 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10934 return;
10935
10936 nla_put_failure:
10937 genlmsg_cancel(msg, hdr);
10938 nlmsg_free(msg);
10939}
947add36 10940EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10941
b92ab5d8
JB		 10942static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10943 const u8 *addr, gfp_t gfp)
28946da7
JB		 10944{
10945 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10946 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10947 struct sk_buff *msg;
10948 void *hdr;
15e47304 10949 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10950
15e47304 10951 if (!nlportid)
28946da7
JB		 10952 return false;
10953
10954 msg = nlmsg_new(100, gfp);
10955 if (!msg)
10956 return true;
10957
b92ab5d8 10958 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10959 if (!hdr) {
10960 nlmsg_free(msg);
10961 return true;
10962 }
10963
9360ffd1
DM		 10964 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10965 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10966 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10967 goto nla_put_failure;
28946da7 10968
9c90a9f6 10969 genlmsg_end(msg, hdr);
15e47304 10970 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10971 return true;
10972
10973 nla_put_failure:
10974 genlmsg_cancel(msg, hdr);
10975 nlmsg_free(msg);
10976 return true;
10977}
10978
947add36
JB		 10979bool cfg80211_rx_spurious_frame(struct net_device *dev,
10980 const u8 *addr, gfp_t gfp)
b92ab5d8 10981{
947add36
JB		 10982 struct wireless_dev *wdev = dev->ieee80211_ptr;
10983 bool ret;
10984
10985 trace_cfg80211_rx_spurious_frame(dev, addr);
10986
10987 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10988 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10989 trace_cfg80211_return_bool(false);
10990 return false;
10991 }
10992 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10993 addr, gfp);
10994 trace_cfg80211_return_bool(ret);
10995 return ret;
b92ab5d8 10996}
947add36 10997EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10998
947add36
JB		 10999bool cfg80211_rx_unexpected_4addr_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_unexpected_4addr_frame(dev, addr);
11006
11007 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11008 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11009 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11010 trace_cfg80211_return_bool(false);
11011 return false;
11012 }
11013 ret = __nl80211_unexpected_frame(dev,
11014 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11015 addr, gfp);
11016 trace_cfg80211_return_bool(ret);
11017 return ret;
b92ab5d8 11018}
947add36 11019EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11020
2e161f78 11021int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11022 struct wireless_dev *wdev, u32 nlportid,
804483e9 11023 int freq, int sig_dbm,
19504cf5 11024 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11025{
71bbc994 11026 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11027 struct sk_buff *msg;
11028 void *hdr;
026331c4
JM		 11029
11030 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11031 if (!msg)
11032 return -ENOMEM;
11033
2e161f78 11034 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11035 if (!hdr) {
11036 nlmsg_free(msg);
11037 return -ENOMEM;
11038 }
11039
9360ffd1 11040 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11041 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11042 netdev->ifindex)) ||
a838490b 11043 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11044 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11045 (sig_dbm &&
11046 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11047 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11048 (flags &&
11049 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11050 goto nla_put_failure;
026331c4 11051
3b7b72ee 11052 genlmsg_end(msg, hdr);
026331c4 11053
15e47304 11054 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11055
11056 nla_put_failure:
11057 genlmsg_cancel(msg, hdr);
11058 nlmsg_free(msg);
11059 return -ENOBUFS;
11060}
11061
947add36
JB		 11062void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11063 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11064{
947add36 11065 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11066 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11067 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11068 struct sk_buff *msg;
11069 void *hdr;
11070
947add36
JB		 11071 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11072
026331c4
JM		 11073 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11074 if (!msg)
11075 return;
11076
2e161f78 11077 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11078 if (!hdr) {
11079 nlmsg_free(msg);
11080 return;
11081 }
11082
9360ffd1 11083 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11084 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11085 netdev->ifindex)) ||
a838490b 11086 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11087 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11088 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11089 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11090 goto nla_put_failure;
026331c4 11091
3b7b72ee 11092 genlmsg_end(msg, hdr);
026331c4 11093
68eb5503 11094 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11095 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11096 return;
11097
11098 nla_put_failure:
11099 genlmsg_cancel(msg, hdr);
11100 nlmsg_free(msg);
11101}
947add36 11102EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11103
947add36
JB		 11104void cfg80211_cqm_rssi_notify(struct net_device *dev,
11105 enum nl80211_cqm_rssi_threshold_event rssi_event,
11106 gfp_t gfp)
d6dc1a38 11107{
947add36
JB		 11108 struct wireless_dev *wdev = dev->ieee80211_ptr;
11109 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11110 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11111 struct sk_buff *msg;
11112 struct nlattr *pinfoattr;
11113 void *hdr;
11114
947add36
JB		 11115 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11116
58050fce 11117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11118 if (!msg)
11119 return;
11120
11121 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11122 if (!hdr) {
11123 nlmsg_free(msg);
11124 return;
11125 }
11126
9360ffd1 11127 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11128 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11129 goto nla_put_failure;
d6dc1a38
JO		 11130
11131 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11132 if (!pinfoattr)
11133 goto nla_put_failure;
11134
9360ffd1
DM		 11135 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11136 rssi_event))
11137 goto nla_put_failure;
d6dc1a38
JO		 11138
11139 nla_nest_end(msg, pinfoattr);
11140
3b7b72ee 11141 genlmsg_end(msg, hdr);
d6dc1a38 11142
68eb5503 11143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11144 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11145 return;
11146
11147 nla_put_failure:
11148 genlmsg_cancel(msg, hdr);
11149 nlmsg_free(msg);
11150}
947add36 11151EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11152
947add36
JB		 11153static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11154 struct net_device *netdev, const u8 *bssid,
11155 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11156{
11157 struct sk_buff *msg;
11158 struct nlattr *rekey_attr;
11159 void *hdr;
11160
58050fce 11161 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11162 if (!msg)
11163 return;
11164
11165 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11166 if (!hdr) {
11167 nlmsg_free(msg);
11168 return;
11169 }
11170
9360ffd1
DM		 11171 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11172 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11173 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11174 goto nla_put_failure;
e5497d76
JB		 11175
11176 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11177 if (!rekey_attr)
11178 goto nla_put_failure;
11179
9360ffd1
DM		 11180 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11181 NL80211_REPLAY_CTR_LEN, replay_ctr))
11182 goto nla_put_failure;
e5497d76
JB		 11183
11184 nla_nest_end(msg, rekey_attr);
11185
3b7b72ee 11186 genlmsg_end(msg, hdr);
e5497d76 11187
68eb5503 11188 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11189 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11190 return;
11191
11192 nla_put_failure:
11193 genlmsg_cancel(msg, hdr);
11194 nlmsg_free(msg);
11195}
11196
947add36
JB		 11197void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11198 const u8 *replay_ctr, gfp_t gfp)
11199{
11200 struct wireless_dev *wdev = dev->ieee80211_ptr;
11201 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11202 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11203
11204 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11205 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11206}
11207EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11208
11209static void
11210nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11211 struct net_device *netdev, int index,
11212 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11213{
11214 struct sk_buff *msg;
11215 struct nlattr *attr;
11216 void *hdr;
11217
58050fce 11218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11219 if (!msg)
11220 return;
11221
11222 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11223 if (!hdr) {
11224 nlmsg_free(msg);
11225 return;
11226 }
11227
9360ffd1
DM		 11228 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11229 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11230 goto nla_put_failure;
c9df56b4
JM		 11231
11232 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11233 if (!attr)
11234 goto nla_put_failure;
11235
9360ffd1
DM		 11236 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11237 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11238 (preauth &&
11239 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11240 goto nla_put_failure;
c9df56b4
JM		 11241
11242 nla_nest_end(msg, attr);
11243
3b7b72ee 11244 genlmsg_end(msg, hdr);
c9df56b4 11245
68eb5503 11246 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11247 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11248 return;
11249
11250 nla_put_failure:
11251 genlmsg_cancel(msg, hdr);
11252 nlmsg_free(msg);
11253}
11254
947add36
JB		 11255void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11256 const u8 *bssid, bool preauth, gfp_t gfp)
11257{
11258 struct wireless_dev *wdev = dev->ieee80211_ptr;
11259 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11260 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11261
11262 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11263 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11264}
11265EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11266
11267static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11268 struct net_device *netdev,
11269 struct cfg80211_chan_def *chandef,
11270 gfp_t gfp)
5314526b
TP		 11271{
11272 struct sk_buff *msg;
11273 void *hdr;
11274
58050fce 11275 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11276 if (!msg)
11277 return;
11278
11279 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11280 if (!hdr) {
11281 nlmsg_free(msg);
11282 return;
11283 }
11284
683b6d3b
JB		 11285 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11286 goto nla_put_failure;
11287
11288 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11289 goto nla_put_failure;
5314526b
TP		 11290
11291 genlmsg_end(msg, hdr);
11292
68eb5503 11293 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11294 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11295 return;
11296
11297 nla_put_failure:
11298 genlmsg_cancel(msg, hdr);
11299 nlmsg_free(msg);
11300}
11301
947add36
JB		 11302void cfg80211_ch_switch_notify(struct net_device *dev,
11303 struct cfg80211_chan_def *chandef)
84f10708 11304{
947add36
JB		 11305 struct wireless_dev *wdev = dev->ieee80211_ptr;
11306 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11307 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11308
e487eaeb 11309 ASSERT_WDEV_LOCK(wdev);
947add36 11310
e487eaeb 11311 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11312
11313 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11314 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11315 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11316 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11317 return;
947add36 11318
9e0e2961 11319 wdev->chandef = *chandef;
96f55f12 11320 wdev->preset_chandef = *chandef;
947add36 11321 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11322}
11323EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11324
11325void cfg80211_cqm_txe_notify(struct net_device *dev,
11326 const u8 *peer, u32 num_packets,
11327 u32 rate, u32 intvl, gfp_t gfp)
11328{
11329 struct wireless_dev *wdev = dev->ieee80211_ptr;
11330 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11331 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11332 struct sk_buff *msg;
11333 struct nlattr *pinfoattr;
11334 void *hdr;
11335
11336 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11337 if (!msg)
11338 return;
11339
11340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11341 if (!hdr) {
11342 nlmsg_free(msg);
11343 return;
11344 }
11345
11346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11347 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11348 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11349 goto nla_put_failure;
11350
11351 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11352 if (!pinfoattr)
11353 goto nla_put_failure;
11354
11355 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11356 goto nla_put_failure;
11357
11358 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11359 goto nla_put_failure;
11360
11361 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11362 goto nla_put_failure;
11363
11364 nla_nest_end(msg, pinfoattr);
11365
11366 genlmsg_end(msg, hdr);
11367
68eb5503 11368 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11369 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11370 return;
11371
11372 nla_put_failure:
11373 genlmsg_cancel(msg, hdr);
11374 nlmsg_free(msg);
11375}
947add36 11376EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11377
04f39047
SW		 11378void
11379nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11380 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11381 enum nl80211_radar_event event,
11382 struct net_device *netdev, gfp_t gfp)
11383{
11384 struct sk_buff *msg;
11385 void *hdr;
11386
11387 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11388 if (!msg)
11389 return;
11390
11391 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11392 if (!hdr) {
11393 nlmsg_free(msg);
11394 return;
11395 }
11396
11397 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11398 goto nla_put_failure;
11399
11400 /* NOP and radar events don't need a netdev parameter */
11401 if (netdev) {
11402 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11403
11404 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11405 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11406 goto nla_put_failure;
11407 }
11408
11409 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11410 goto nla_put_failure;
11411
11412 if (nl80211_send_chandef(msg, chandef))
11413 goto nla_put_failure;
11414
9c90a9f6 11415 genlmsg_end(msg, hdr);
04f39047 11416
68eb5503 11417 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11418 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11419 return;
11420
11421 nla_put_failure:
11422 genlmsg_cancel(msg, hdr);
11423 nlmsg_free(msg);
11424}
11425
947add36
JB		 11426void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11427 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11428{
947add36
JB		 11429 struct wireless_dev *wdev = dev->ieee80211_ptr;
11430 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11431 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11432 struct sk_buff *msg;
11433 struct nlattr *pinfoattr;
11434 void *hdr;
11435
947add36
JB		 11436 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11437
58050fce 11438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11439 if (!msg)
11440 return;
11441
11442 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11443 if (!hdr) {
11444 nlmsg_free(msg);
11445 return;
11446 }
11447
9360ffd1 11448 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11449 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11450 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11451 goto nla_put_failure;
c063dbf5
JB		 11452
11453 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11454 if (!pinfoattr)
11455 goto nla_put_failure;
11456
9360ffd1
DM		 11457 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11458 goto nla_put_failure;
c063dbf5
JB		 11459
11460 nla_nest_end(msg, pinfoattr);
11461
3b7b72ee 11462 genlmsg_end(msg, hdr);
c063dbf5 11463
68eb5503 11464 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11465 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11466 return;
11467
11468 nla_put_failure:
11469 genlmsg_cancel(msg, hdr);
11470 nlmsg_free(msg);
11471}
947add36 11472EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11473
7f6cf311
JB		 11474void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11475 u64 cookie, bool acked, gfp_t gfp)
11476{
11477 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11478 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11479 struct sk_buff *msg;
11480 void *hdr;
7f6cf311 11481
4ee3e063
BL		 11482 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11483
58050fce 11484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11485
7f6cf311
JB		 11486 if (!msg)
11487 return;
11488
11489 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11490 if (!hdr) {
11491 nlmsg_free(msg);
11492 return;
11493 }
11494
9360ffd1
DM		 11495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11496 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11497 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11498 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11499 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11500 goto nla_put_failure;
7f6cf311 11501
9c90a9f6 11502 genlmsg_end(msg, hdr);
7f6cf311 11503
68eb5503 11504 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11505 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11506 return;
11507
11508 nla_put_failure:
11509 genlmsg_cancel(msg, hdr);
11510 nlmsg_free(msg);
11511}
11512EXPORT_SYMBOL(cfg80211_probe_status);
11513
5e760230
JB		 11514void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11515 const u8 *frame, size_t len,
37c73b5f 11516 int freq, int sig_dbm)
5e760230 11517{
f26cbf40 11518 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11519 struct sk_buff *msg;
11520 void *hdr;
37c73b5f 11521 struct cfg80211_beacon_registration *reg;
5e760230 11522
4ee3e063
BL		 11523 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11524
37c73b5f
BG		 11525 spin_lock_bh(&rdev->beacon_registrations_lock);
11526 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11527 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11528 if (!msg) {
11529 spin_unlock_bh(&rdev->beacon_registrations_lock);
11530 return;
11531 }
5e760230 11532
37c73b5f
BG		 11533 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11534 if (!hdr)
11535 goto nla_put_failure;
5e760230 11536
37c73b5f
BG		 11537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11538 (freq &&
11539 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11540 (sig_dbm &&
11541 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11542 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11543 goto nla_put_failure;
5e760230 11544
37c73b5f 11545 genlmsg_end(msg, hdr);
5e760230 11546
37c73b5f
BG		 11547 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11548 }
11549 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11550 return;
11551
11552 nla_put_failure:
37c73b5f
BG		 11553 spin_unlock_bh(&rdev->beacon_registrations_lock);
11554 if (hdr)
11555 genlmsg_cancel(msg, hdr);
5e760230
JB		 11556 nlmsg_free(msg);
11557}
11558EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11559
cd8f7cb4
JB		 11560#ifdef CONFIG_PM
11561void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11562 struct cfg80211_wowlan_wakeup *wakeup,
11563 gfp_t gfp)
11564{
f26cbf40 11565 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11566 struct sk_buff *msg;
11567 void *hdr;
9c90a9f6 11568 int size = 200;
cd8f7cb4
JB		 11569
11570 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11571
11572 if (wakeup)
11573 size += wakeup->packet_present_len;
11574
11575 msg = nlmsg_new(size, gfp);
11576 if (!msg)
11577 return;
11578
11579 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11580 if (!hdr)
11581 goto free_msg;
11582
11583 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11584 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11585 goto free_msg;
11586
11587 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11588 wdev->netdev->ifindex))
11589 goto free_msg;
11590
11591 if (wakeup) {
11592 struct nlattr *reasons;
11593
11594 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11595 if (!reasons)
11596 goto free_msg;
cd8f7cb4
JB		 11597
11598 if (wakeup->disconnect &&
11599 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11600 goto free_msg;
11601 if (wakeup->magic_pkt &&
11602 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11603 goto free_msg;
11604 if (wakeup->gtk_rekey_failure &&
11605 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11606 goto free_msg;
11607 if (wakeup->eap_identity_req &&
11608 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11609 goto free_msg;
11610 if (wakeup->four_way_handshake &&
11611 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11612 goto free_msg;
11613 if (wakeup->rfkill_release &&
11614 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11615 goto free_msg;
11616
11617 if (wakeup->pattern_idx >= 0 &&
11618 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11619 wakeup->pattern_idx))
11620 goto free_msg;
11621
ae917c9f
JB		 11622 if (wakeup->tcp_match &&
11623 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11624 goto free_msg;
2a0e047e 11625
ae917c9f
JB		 11626 if (wakeup->tcp_connlost &&
11627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11628 goto free_msg;
2a0e047e 11629
ae917c9f
JB		 11630 if (wakeup->tcp_nomoretokens &&
11631 nla_put_flag(msg,
11632 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11633 goto free_msg;
2a0e047e 11634
cd8f7cb4
JB		 11635 if (wakeup->packet) {
11636 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11637 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11638
11639 if (!wakeup->packet_80211) {
11640 pkt_attr =
11641 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11642 len_attr =
11643 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11644 }
11645
11646 if (wakeup->packet_len &&
11647 nla_put_u32(msg, len_attr, wakeup->packet_len))
11648 goto free_msg;
11649
11650 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11651 wakeup->packet))
11652 goto free_msg;
11653 }
11654
11655 nla_nest_end(msg, reasons);
11656 }
11657
9c90a9f6 11658 genlmsg_end(msg, hdr);
cd8f7cb4 11659
68eb5503 11660 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11661 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11662 return;
11663
11664 free_msg:
11665 nlmsg_free(msg);
11666}
11667EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11668#endif
11669
3475b094
JM		 11670void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11671 enum nl80211_tdls_operation oper,
11672 u16 reason_code, gfp_t gfp)
11673{
11674 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11675 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11676 struct sk_buff *msg;
11677 void *hdr;
3475b094
JM		 11678
11679 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11680 reason_code);
11681
11682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11683 if (!msg)
11684 return;
11685
11686 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11687 if (!hdr) {
11688 nlmsg_free(msg);
11689 return;
11690 }
11691
11692 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11694 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11695 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11696 (reason_code > 0 &&
11697 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11698 goto nla_put_failure;
11699
9c90a9f6 11700 genlmsg_end(msg, hdr);
3475b094 11701
68eb5503 11702 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11703 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11704 return;
11705
11706 nla_put_failure:
11707 genlmsg_cancel(msg, hdr);
11708 nlmsg_free(msg);
11709}
11710EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11711
026331c4
JM		 11712static int nl80211_netlink_notify(struct notifier_block * nb,
11713 unsigned long state,
11714 void *_notify)
11715{
11716 struct netlink_notify *notify = _notify;
11717 struct cfg80211_registered_device *rdev;
11718 struct wireless_dev *wdev;
37c73b5f 11719 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11720
11721 if (state != NETLINK_URELEASE)
11722 return NOTIFY_DONE;
11723
11724 rcu_read_lock();
11725
5e760230 11726 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11727 bool schedule_destroy_work = false;
11728
11729 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11730 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11731
78f22b6a
JB		 11732 if (wdev->owner_nlportid == notify->portid)
11733 schedule_destroy_work = true;
11734 }
11735
37c73b5f
BG		 11736 spin_lock_bh(&rdev->beacon_registrations_lock);
11737 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11738 list) {
11739 if (reg->nlportid == notify->portid) {
11740 list_del(&reg->list);
11741 kfree(reg);
11742 break;
11743 }
11744 }
11745 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11746
11747 if (schedule_destroy_work) {
11748 struct cfg80211_iface_destroy *destroy;
11749
11750 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11751 if (destroy) {
11752 destroy->nlportid = notify->portid;
11753 spin_lock(&rdev->destroy_list_lock);
11754 list_add(&destroy->list, &rdev->destroy_list);
11755 spin_unlock(&rdev->destroy_list_lock);
11756 schedule_work(&rdev->destroy_work);
11757 }
11758 }
5e760230 11759 }
026331c4
JM		 11760
11761 rcu_read_unlock();
11762
6784c7db 11763 return NOTIFY_OK;
026331c4
JM		 11764}
11765
11766static struct notifier_block nl80211_netlink_notifier = {
11767 .notifier_call = nl80211_netlink_notify,
11768};
11769
355199e0
JM		 11770void cfg80211_ft_event(struct net_device *netdev,
11771 struct cfg80211_ft_event_params *ft_event)
11772{
11773 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11774 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11775 struct sk_buff *msg;
11776 void *hdr;
355199e0
JM		 11777
11778 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11779
11780 if (!ft_event->target_ap)
11781 return;
11782
11783 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11784 if (!msg)
11785 return;
11786
11787 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11788 if (!hdr)
11789 goto out;
355199e0 11790
ae917c9f
JB		 11791 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11792 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11794 goto out;
355199e0 11795
ae917c9f
JB		 11796 if (ft_event->ies &&
11797 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11798 goto out;
11799 if (ft_event->ric_ies &&
11800 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11801 ft_event->ric_ies))
11802 goto out;
355199e0 11803
9c90a9f6 11804 genlmsg_end(msg, hdr);
355199e0 11805
68eb5503 11806 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11807 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11808 return;
11809 out:
11810 nlmsg_free(msg);
355199e0
JM		 11811}
11812EXPORT_SYMBOL(cfg80211_ft_event);
11813
5de17984
AS		 11814void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11815{
11816 struct cfg80211_registered_device *rdev;
11817 struct sk_buff *msg;
11818 void *hdr;
11819 u32 nlportid;
11820
f26cbf40 11821 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11822 if (!rdev->crit_proto_nlportid)
11823 return;
11824
11825 nlportid = rdev->crit_proto_nlportid;
11826 rdev->crit_proto_nlportid = 0;
11827
11828 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11829 if (!msg)
11830 return;
11831
11832 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11833 if (!hdr)
11834 goto nla_put_failure;
11835
11836 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11837 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11838 goto nla_put_failure;
11839
11840 genlmsg_end(msg, hdr);
11841
11842 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11843 return;
11844
11845 nla_put_failure:
11846 if (hdr)
11847 genlmsg_cancel(msg, hdr);
11848 nlmsg_free(msg);
11849
11850}
11851EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11852
348baf0e
JB		 11853void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11854{
11855 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11856 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11857 struct sk_buff *msg;
11858 void *hdr;
11859
11860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11861 if (!msg)
11862 return;
11863
11864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11865 if (!hdr)
11866 goto out;
11867
11868 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11869 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11870 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11871 goto out;
11872
11873 genlmsg_end(msg, hdr);
11874
11875 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11876 NL80211_MCGRP_MLME, GFP_KERNEL);
11877 return;
11878 out:
11879 nlmsg_free(msg);
11880}
11881
55682965
JB		 11882/* initialisation/exit functions */
11883
11884int nl80211_init(void)
11885{
0d63cbb5 11886 int err;
55682965 11887
2a94fe48
JB		 11888 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11889 nl80211_mcgrps);
55682965
JB		 11890 if (err)
11891 return err;
11892
026331c4
JM		 11893 err = netlink_register_notifier(&nl80211_netlink_notifier);
11894 if (err)
11895 goto err_out;
11896
55682965
JB		 11897 return 0;
11898 err_out:
11899 genl_unregister_family(&nl80211_fam);
11900 return err;
11901}
11902
11903void nl80211_exit(void)
11904{
026331c4 11905 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11906 genl_unregister_family(&nl80211_fam);
11907}
Linux kernel - Deliverables
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