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mac80211: disable VHT for TDLS
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
f84f771d 33static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 34 struct genl_info *info);
f84f771d 35static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
2a94fe48
JB		 50/* multicast groups */
51enum nl80211_multicast_groups {
52 NL80211_MCGRP_CONFIG,
53 NL80211_MCGRP_SCAN,
54 NL80211_MCGRP_REGULATORY,
55 NL80211_MCGRP_MLME,
567ffc35 56 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
58};
59
60static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 66#ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
68#endif
69};
70
89a54e48
JB		 71/* returns ERR_PTR values */
72static struct wireless_dev *
73__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 74{
89a54e48
JB		 75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
79 u64 wdev_id;
80 int wiphy_idx = -1;
81 int ifidx = -1;
55682965 82
5fe231e8 83 ASSERT_RTNL();
55682965 84
89a54e48
JB		 85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
55682965 87
89a54e48
JB		 88 if (have_ifidx)
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
90 if (have_wdev_id) {
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
55682965
JB		 93 }
94
89a54e48
JB		 95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
97
98 if (wiphy_net(&rdev->wiphy) != netns)
99 continue;
100
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
102 continue;
103
89a54e48
JB		 104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
107 result = wdev;
108 break;
109 }
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
111 result = wdev;
112 break;
113 }
114 }
89a54e48
JB		 115
116 if (result)
117 break;
118 }
119
120 if (result)
121 return result;
122 return ERR_PTR(-ENODEV);
55682965
JB		 123}
124
a9455408 125static struct cfg80211_registered_device *
878d9ec7 126__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 127{
7fee4778
JB		 128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
a9455408 130
5fe231e8 131 ASSERT_RTNL();
a9455408 132
878d9ec7 133 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 136 return ERR_PTR(-EINVAL);
137
878d9ec7 138 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 139 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 141
89a54e48
JB		 142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
145 bool found = false;
146
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
148 if (tmp) {
149 /* make sure wdev exists */
89a54e48
JB		 150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
152 continue;
153 found = true;
154 break;
155 }
89a54e48
JB		 156
157 if (!found)
158 tmp = NULL;
159
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
162 rdev = tmp;
163 }
164 }
165
878d9ec7
JB		 166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 168 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 169 if (netdev) {
170 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 171 tmp = wiphy_to_rdev(
172 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 173 else
174 tmp = NULL;
175
7fee4778
JB		 176 /* not wireless device -- return error */
177 if (!tmp)
178 return ERR_PTR(-EINVAL);
179
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
183
184 rdev = tmp;
a9455408 185 }
a9455408 186 }
a9455408 187
4f7eff10
JB		 188 if (!rdev)
189 return ERR_PTR(-ENODEV);
a9455408 190
4f7eff10
JB		 191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
193
194 return rdev;
a9455408
JB		 195}
196
197/*
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
a9455408
JB		 200 *
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
203 */
204static struct cfg80211_registered_device *
4f7eff10 205cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 206{
5fe231e8 207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208}
209
55682965 210/* policy for the attributes */
b54452b0 211static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 214 .len = 20-1 },
31888487 215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 216
72bdcf34 217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
222
b9a5f8ca
JM		 223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 228
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 232
e007b857
EP		 233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 235
b9454e83 236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 244
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 260 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 262
b2e1b302
LR		 263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
265
9f1ba906
JM		 266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
50b12f59 271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 272
24bdd9f4 273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 275
6c739419 276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 277
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 283
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
293 },
3f77316c 294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 340 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 341 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 342 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
343 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 344 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 345 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
346 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
347 .len = NL80211_HT_CAPABILITY_LEN
348 },
1d9d9213 349 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 350 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 351 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 352 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 353 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 354 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 355 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 356 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 357 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
358 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 359 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
360 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 361 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
362 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 363 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 364 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
365 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
366 .len = NL80211_VHT_CAPABILITY_LEN,
367 },
355199e0
JM		 368 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
369 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
370 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 371 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 372 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
373 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
374 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 375 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
376 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 377 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
378 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 379 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 380 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 381 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
383 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 384 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
385 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 386 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
387 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 388 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 389 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 390 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
55682965
JB		 391};
392
e31b8213 393/* policy for the key attributes */
b54452b0 394static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 395 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 396 [NL80211_KEY_IDX] = { .type = NLA_U8 },
397 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 398 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 399 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
400 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 401 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 402 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
403};
404
405/* policy for the key default flags */
406static const struct nla_policy
407nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
408 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
409 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 410};
411
ff1b6e69
JB		 412/* policy for WoWLAN attributes */
413static const struct nla_policy
414nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
415 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 419 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
422 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 423 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
424};
425
426static const struct nla_policy
427nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
428 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
430 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
431 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
432 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
434 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
435 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
436 },
437 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
438 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
439 },
440 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
441 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
442 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 443};
444
be29b99a
AK		 445/* policy for coalesce rule attributes */
446static const struct nla_policy
447nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
448 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
449 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
450 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
451};
452
e5497d76
JB		 453/* policy for GTK rekey offload attributes */
454static const struct nla_policy
455nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
456 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
457 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
458 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
459};
460
a1f1c21c
LC		 461static const struct nla_policy
462nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 463 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 464 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 465 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 466};
467
97990a06
JB		 468static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
469 struct netlink_callback *cb,
470 struct cfg80211_registered_device **rdev,
471 struct wireless_dev **wdev)
a043897a 472{
97990a06 473 int err;
a043897a 474
97990a06 475 rtnl_lock();
a043897a 476
97990a06
JB		 477 if (!cb->args[0]) {
478 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
479 nl80211_fam.attrbuf, nl80211_fam.maxattr,
480 nl80211_policy);
481 if (err)
482 goto out_unlock;
67748893 483
97990a06
JB		 484 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
485 nl80211_fam.attrbuf);
486 if (IS_ERR(*wdev)) {
487 err = PTR_ERR(*wdev);
488 goto out_unlock;
489 }
f26cbf40 490 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 491 /* 0 is the first index - add 1 to parse only once */
492 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 493 cb->args[1] = (*wdev)->identifier;
494 } else {
c319d50b
JB		 495 /* subtract the 1 again here */
496 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 497 struct wireless_dev *tmp;
67748893 498
97990a06
JB		 499 if (!wiphy) {
500 err = -ENODEV;
501 goto out_unlock;
502 }
f26cbf40 503 *rdev = wiphy_to_rdev(wiphy);
97990a06 504 *wdev = NULL;
67748893 505
97990a06
JB		 506 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
507 if (tmp->identifier == cb->args[1]) {
508 *wdev = tmp;
509 break;
510 }
511 }
67748893 512
97990a06
JB		 513 if (!*wdev) {
514 err = -ENODEV;
515 goto out_unlock;
516 }
67748893
JB		 517 }
518
67748893 519 return 0;
97990a06 520 out_unlock:
67748893
JB		 521 rtnl_unlock();
522 return err;
523}
524
97990a06 525static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 526{
67748893
JB		 527 rtnl_unlock();
528}
529
f4a11bb0
JB		 530/* IE validation */
531static bool is_valid_ie_attr(const struct nlattr *attr)
532{
533 const u8 *pos;
534 int len;
535
536 if (!attr)
537 return true;
538
539 pos = nla_data(attr);
540 len = nla_len(attr);
541
542 while (len) {
543 u8 elemlen;
544
545 if (len < 2)
546 return false;
547 len -= 2;
548
549 elemlen = pos[1];
550 if (elemlen > len)
551 return false;
552
553 len -= elemlen;
554 pos += 2 + elemlen;
555 }
556
557 return true;
558}
559
55682965 560/* message building helper */
15e47304 561static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 562 int flags, u8 cmd)
563{
564 /* since there is no private header just add the generic one */
15e47304 565 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 566}
567
5dab3b8a 568static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 569 struct ieee80211_channel *chan,
570 bool large)
5dab3b8a 571{
ea077c1c
RL		 572 /* Some channels must be completely excluded from the
573 * list to protect old user-space tools from breaking
574 */
575 if (!large && chan->flags &
576 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
577 return 0;
578
9360ffd1
DM		 579 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
580 chan->center_freq))
581 goto nla_put_failure;
5dab3b8a 582
9360ffd1
DM		 583 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
584 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
585 goto nla_put_failure;
8fe02e16
LR		 586 if (chan->flags & IEEE80211_CHAN_NO_IR) {
587 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
588 goto nla_put_failure;
589 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
590 goto nla_put_failure;
591 }
cdc89b97
JB		 592 if (chan->flags & IEEE80211_CHAN_RADAR) {
593 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
594 goto nla_put_failure;
595 if (large) {
596 u32 time;
597
598 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
599
600 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
601 chan->dfs_state))
602 goto nla_put_failure;
603 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
604 time))
605 goto nla_put_failure;
089027e5
JD		 606 if (nla_put_u32(msg,
607 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
608 chan->dfs_cac_ms))
609 goto nla_put_failure;
cdc89b97
JB		 610 }
611 }
5dab3b8a 612
fe1abafd
JB		 613 if (large) {
614 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
615 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
616 goto nla_put_failure;
617 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
618 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
619 goto nla_put_failure;
620 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
622 goto nla_put_failure;
623 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
624 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
625 goto nla_put_failure;
570dbde1
DS		 626 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
628 goto nla_put_failure;
629 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
631 goto nla_put_failure;
ea077c1c
RL		 632 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
634 goto nla_put_failure;
635 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
637 goto nla_put_failure;
fe1abafd
JB		 638 }
639
9360ffd1
DM		 640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
641 DBM_TO_MBM(chan->max_power)))
642 goto nla_put_failure;
5dab3b8a
LR		 643
644 return 0;
645
646 nla_put_failure:
647 return -ENOBUFS;
648}
649
55682965
JB		 650/* netlink command implementations */
651
b9454e83
JB		 652struct key_parse {
653 struct key_params p;
654 int idx;
e31b8213 655 int type;
b9454e83 656 bool def, defmgmt;
dbd2fd65 657 bool def_uni, def_multi;
b9454e83
JB		 658};
659
660static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
661{
662 struct nlattr *tb[NL80211_KEY_MAX + 1];
663 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
664 nl80211_key_policy);
665 if (err)
666 return err;
667
668 k->def = !!tb[NL80211_KEY_DEFAULT];
669 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
670
dbd2fd65
JB		 671 if (k->def) {
672 k->def_uni = true;
673 k->def_multi = true;
674 }
675 if (k->defmgmt)
676 k->def_multi = true;
677
b9454e83
JB		 678 if (tb[NL80211_KEY_IDX])
679 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
680
681 if (tb[NL80211_KEY_DATA]) {
682 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
683 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
684 }
685
686 if (tb[NL80211_KEY_SEQ]) {
687 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
688 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
689 }
690
691 if (tb[NL80211_KEY_CIPHER])
692 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
693
e31b8213
JB		 694 if (tb[NL80211_KEY_TYPE]) {
695 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
696 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
697 return -EINVAL;
698 }
699
dbd2fd65
JB		 700 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
701 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 702 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
703 tb[NL80211_KEY_DEFAULT_TYPES],
704 nl80211_key_default_policy);
dbd2fd65
JB		 705 if (err)
706 return err;
707
708 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
709 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
710 }
711
b9454e83
JB		 712 return 0;
713}
714
715static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
716{
717 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
718 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
719 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
720 }
721
722 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
723 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
724 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
725 }
726
727 if (info->attrs[NL80211_ATTR_KEY_IDX])
728 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
729
730 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
731 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
732
733 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
734 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
735
dbd2fd65
JB		 736 if (k->def) {
737 k->def_uni = true;
738 k->def_multi = true;
739 }
740 if (k->defmgmt)
741 k->def_multi = true;
742
e31b8213
JB		 743 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
744 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
745 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
746 return -EINVAL;
747 }
748
dbd2fd65
JB		 749 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
750 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
751 int err = nla_parse_nested(
752 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
753 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
754 nl80211_key_default_policy);
755 if (err)
756 return err;
757
758 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
759 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
760 }
761
b9454e83
JB		 762 return 0;
763}
764
765static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
766{
767 int err;
768
769 memset(k, 0, sizeof(*k));
770 k->idx = -1;
e31b8213 771 k->type = -1;
b9454e83
JB		 772
773 if (info->attrs[NL80211_ATTR_KEY])
774 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
775 else
776 err = nl80211_parse_key_old(info, k);
777
778 if (err)
779 return err;
780
781 if (k->def && k->defmgmt)
782 return -EINVAL;
783
dbd2fd65
JB		 784 if (k->defmgmt) {
785 if (k->def_uni || !k->def_multi)
786 return -EINVAL;
787 }
788
b9454e83
JB		 789 if (k->idx != -1) {
790 if (k->defmgmt) {
791 if (k->idx < 4 || k->idx > 5)
792 return -EINVAL;
793 } else if (k->def) {
794 if (k->idx < 0 || k->idx > 3)
795 return -EINVAL;
796 } else {
797 if (k->idx < 0 || k->idx > 5)
798 return -EINVAL;
799 }
800 }
801
802 return 0;
803}
804
fffd0934
JB		 805static struct cfg80211_cached_keys *
806nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 807 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 808{
809 struct key_parse parse;
810 struct nlattr *key;
811 struct cfg80211_cached_keys *result;
812 int rem, err, def = 0;
813
814 result = kzalloc(sizeof(*result), GFP_KERNEL);
815 if (!result)
816 return ERR_PTR(-ENOMEM);
817
818 result->def = -1;
819 result->defmgmt = -1;
820
821 nla_for_each_nested(key, keys, rem) {
822 memset(&parse, 0, sizeof(parse));
823 parse.idx = -1;
824
825 err = nl80211_parse_key_new(key, &parse);
826 if (err)
827 goto error;
828 err = -EINVAL;
829 if (!parse.p.key)
830 goto error;
831 if (parse.idx < 0 || parse.idx > 4)
832 goto error;
833 if (parse.def) {
834 if (def)
835 goto error;
836 def = 1;
837 result->def = parse.idx;
dbd2fd65
JB		 838 if (!parse.def_uni || !parse.def_multi)
839 goto error;
fffd0934
JB		 840 } else if (parse.defmgmt)
841 goto error;
842 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 843 parse.idx, false, NULL);
fffd0934
JB		 844 if (err)
845 goto error;
846 result->params[parse.idx].cipher = parse.p.cipher;
847 result->params[parse.idx].key_len = parse.p.key_len;
848 result->params[parse.idx].key = result->data[parse.idx];
849 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 850
851 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
852 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
853 if (no_ht)
854 *no_ht = true;
855 }
fffd0934
JB		 856 }
857
858 return result;
859 error:
860 kfree(result);
861 return ERR_PTR(err);
862}
863
864static int nl80211_key_allowed(struct wireless_dev *wdev)
865{
866 ASSERT_WDEV_LOCK(wdev);
867
fffd0934
JB		 868 switch (wdev->iftype) {
869 case NL80211_IFTYPE_AP:
870 case NL80211_IFTYPE_AP_VLAN:
074ac8df 871 case NL80211_IFTYPE_P2P_GO:
ff973af7 872 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 873 break;
874 case NL80211_IFTYPE_ADHOC:
fffd0934 875 case NL80211_IFTYPE_STATION:
074ac8df 876 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 877 if (!wdev->current_bss)
fffd0934
JB		 878 return -ENOLINK;
879 break;
880 default:
881 return -EINVAL;
882 }
883
884 return 0;
885}
886
664834de
JM		 887static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
888 struct nlattr *tb)
889{
890 struct ieee80211_channel *chan;
891
892 if (tb == NULL)
893 return NULL;
894 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
895 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
896 return NULL;
897 return chan;
898}
899
7527a782
JB		 900static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
901{
902 struct nlattr *nl_modes = nla_nest_start(msg, attr);
903 int i;
904
905 if (!nl_modes)
906 goto nla_put_failure;
907
908 i = 0;
909 while (ifmodes) {
9360ffd1
DM		 910 if ((ifmodes & 1) && nla_put_flag(msg, i))
911 goto nla_put_failure;
7527a782
JB		 912 ifmodes >>= 1;
913 i++;
914 }
915
916 nla_nest_end(msg, nl_modes);
917 return 0;
918
919nla_put_failure:
920 return -ENOBUFS;
921}
922
923static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 924 struct sk_buff *msg,
925 bool large)
7527a782
JB		 926{
927 struct nlattr *nl_combis;
928 int i, j;
929
930 nl_combis = nla_nest_start(msg,
931 NL80211_ATTR_INTERFACE_COMBINATIONS);
932 if (!nl_combis)
933 goto nla_put_failure;
934
935 for (i = 0; i < wiphy->n_iface_combinations; i++) {
936 const struct ieee80211_iface_combination *c;
937 struct nlattr *nl_combi, *nl_limits;
938
939 c = &wiphy->iface_combinations[i];
940
941 nl_combi = nla_nest_start(msg, i + 1);
942 if (!nl_combi)
943 goto nla_put_failure;
944
945 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
946 if (!nl_limits)
947 goto nla_put_failure;
948
949 for (j = 0; j < c->n_limits; j++) {
950 struct nlattr *nl_limit;
951
952 nl_limit = nla_nest_start(msg, j + 1);
953 if (!nl_limit)
954 goto nla_put_failure;
9360ffd1
DM		 955 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
956 c->limits[j].max))
957 goto nla_put_failure;
7527a782
JB		 958 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
959 c->limits[j].types))
960 goto nla_put_failure;
961 nla_nest_end(msg, nl_limit);
962 }
963
964 nla_nest_end(msg, nl_limits);
965
9360ffd1
DM		 966 if (c->beacon_int_infra_match &&
967 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
968 goto nla_put_failure;
969 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
970 c->num_different_channels) ||
971 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
972 c->max_interfaces))
973 goto nla_put_failure;
cdc89b97 974 if (large &&
8c48b50a
FF		 975 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
976 c->radar_detect_widths) ||
977 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
978 c->radar_detect_regions)))
cdc89b97 979 goto nla_put_failure;
7527a782
JB		 980
981 nla_nest_end(msg, nl_combi);
982 }
983
984 nla_nest_end(msg, nl_combis);
985
986 return 0;
987nla_put_failure:
988 return -ENOBUFS;
989}
990
3713b4e3 991#ifdef CONFIG_PM
b56cf720
JB		 992static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
993 struct sk_buff *msg)
994{
964dc9e2 995 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 996 struct nlattr *nl_tcp;
997
998 if (!tcp)
999 return 0;
1000
1001 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1002 if (!nl_tcp)
1003 return -ENOBUFS;
1004
1005 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1006 tcp->data_payload_max))
1007 return -ENOBUFS;
1008
1009 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1010 tcp->data_payload_max))
1011 return -ENOBUFS;
1012
1013 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1014 return -ENOBUFS;
1015
1016 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1017 sizeof(*tcp->tok), tcp->tok))
1018 return -ENOBUFS;
1019
1020 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1021 tcp->data_interval_max))
1022 return -ENOBUFS;
1023
1024 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1025 tcp->wake_payload_max))
1026 return -ENOBUFS;
1027
1028 nla_nest_end(msg, nl_tcp);
1029 return 0;
1030}
1031
3713b4e3 1032static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1033 struct cfg80211_registered_device *rdev,
b56cf720 1034 bool large)
55682965 1035{
3713b4e3 1036 struct nlattr *nl_wowlan;
55682965 1037
1b8ec87a 1038 if (!rdev->wiphy.wowlan)
3713b4e3 1039 return 0;
55682965 1040
3713b4e3
JB		 1041 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1042 if (!nl_wowlan)
1043 return -ENOBUFS;
9360ffd1 1044
1b8ec87a 1045 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1046 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1047 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1048 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1049 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1051 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1052 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1053 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1055 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1056 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1057 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1058 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1059 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1061 return -ENOBUFS;
9360ffd1 1062
1b8ec87a 1063 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1064 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1065 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1066 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1067 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1068 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1069 };
9360ffd1 1070
3713b4e3
JB		 1071 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1072 sizeof(pat), &pat))
1073 return -ENOBUFS;
1074 }
9360ffd1 1075
1b8ec87a 1076 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1077 return -ENOBUFS;
1078
3713b4e3 1079 nla_nest_end(msg, nl_wowlan);
9360ffd1 1080
3713b4e3
JB		 1081 return 0;
1082}
1083#endif
9360ffd1 1084
be29b99a 1085static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1086 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1087{
1088 struct nl80211_coalesce_rule_support rule;
1089
1b8ec87a 1090 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1091 return 0;
1092
1b8ec87a
ZG		 1093 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1094 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1095 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1096 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1097 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1098 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1099
1100 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1101 return -ENOBUFS;
1102
1103 return 0;
1104}
1105
3713b4e3
JB		 1106static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1107 struct ieee80211_supported_band *sband)
1108{
1109 struct nlattr *nl_rates, *nl_rate;
1110 struct ieee80211_rate *rate;
1111 int i;
87bbbe22 1112
3713b4e3
JB		 1113 /* add HT info */
1114 if (sband->ht_cap.ht_supported &&
1115 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1116 sizeof(sband->ht_cap.mcs),
1117 &sband->ht_cap.mcs) ||
1118 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1119 sband->ht_cap.cap) ||
1120 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1121 sband->ht_cap.ampdu_factor) ||
1122 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1123 sband->ht_cap.ampdu_density)))
1124 return -ENOBUFS;
afe0cbf8 1125
3713b4e3
JB		 1126 /* add VHT info */
1127 if (sband->vht_cap.vht_supported &&
1128 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1129 sizeof(sband->vht_cap.vht_mcs),
1130 &sband->vht_cap.vht_mcs) ||
1131 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1132 sband->vht_cap.cap)))
1133 return -ENOBUFS;
f59ac048 1134
3713b4e3
JB		 1135 /* add bitrates */
1136 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1137 if (!nl_rates)
1138 return -ENOBUFS;
ee688b00 1139
3713b4e3
JB		 1140 for (i = 0; i < sband->n_bitrates; i++) {
1141 nl_rate = nla_nest_start(msg, i);
1142 if (!nl_rate)
1143 return -ENOBUFS;
ee688b00 1144
3713b4e3
JB		 1145 rate = &sband->bitrates[i];
1146 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1147 rate->bitrate))
1148 return -ENOBUFS;
1149 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1150 nla_put_flag(msg,
1151 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1152 return -ENOBUFS;
ee688b00 1153
3713b4e3
JB		 1154 nla_nest_end(msg, nl_rate);
1155 }
d51626df 1156
3713b4e3 1157 nla_nest_end(msg, nl_rates);
bf0c111e 1158
3713b4e3
JB		 1159 return 0;
1160}
ee688b00 1161
3713b4e3
JB		 1162static int
1163nl80211_send_mgmt_stypes(struct sk_buff *msg,
1164 const struct ieee80211_txrx_stypes *mgmt_stypes)
1165{
1166 u16 stypes;
1167 struct nlattr *nl_ftypes, *nl_ifs;
1168 enum nl80211_iftype ift;
1169 int i;
ee688b00 1170
3713b4e3
JB		 1171 if (!mgmt_stypes)
1172 return 0;
5dab3b8a 1173
3713b4e3
JB		 1174 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1175 if (!nl_ifs)
1176 return -ENOBUFS;
e2f367f2 1177
3713b4e3
JB		 1178 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1179 nl_ftypes = nla_nest_start(msg, ift);
1180 if (!nl_ftypes)
1181 return -ENOBUFS;
1182 i = 0;
1183 stypes = mgmt_stypes[ift].tx;
1184 while (stypes) {
1185 if ((stypes & 1) &&
1186 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1187 (i << 4) | IEEE80211_FTYPE_MGMT))
1188 return -ENOBUFS;
1189 stypes >>= 1;
1190 i++;
ee688b00 1191 }
3713b4e3
JB		 1192 nla_nest_end(msg, nl_ftypes);
1193 }
ee688b00 1194
3713b4e3 1195 nla_nest_end(msg, nl_ifs);
ee688b00 1196
3713b4e3
JB		 1197 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1198 if (!nl_ifs)
1199 return -ENOBUFS;
ee688b00 1200
3713b4e3
JB		 1201 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1202 nl_ftypes = nla_nest_start(msg, ift);
1203 if (!nl_ftypes)
1204 return -ENOBUFS;
1205 i = 0;
1206 stypes = mgmt_stypes[ift].rx;
1207 while (stypes) {
1208 if ((stypes & 1) &&
1209 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1210 (i << 4) | IEEE80211_FTYPE_MGMT))
1211 return -ENOBUFS;
1212 stypes >>= 1;
1213 i++;
1214 }
1215 nla_nest_end(msg, nl_ftypes);
1216 }
1217 nla_nest_end(msg, nl_ifs);
ee688b00 1218
3713b4e3
JB		 1219 return 0;
1220}
ee688b00 1221
86e8cf98
JB		 1222struct nl80211_dump_wiphy_state {
1223 s64 filter_wiphy;
1224 long start;
1225 long split_start, band_start, chan_start;
1226 bool split;
1227};
1228
1b8ec87a 1229static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1230 enum nl80211_commands cmd,
3713b4e3 1231 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1232 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1233{
1234 void *hdr;
1235 struct nlattr *nl_bands, *nl_band;
1236 struct nlattr *nl_freqs, *nl_freq;
1237 struct nlattr *nl_cmds;
1238 enum ieee80211_band band;
1239 struct ieee80211_channel *chan;
1240 int i;
1241 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1242 rdev->wiphy.mgmt_stypes;
fe1abafd 1243 u32 features;
ee688b00 1244
3bb20556 1245 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1246 if (!hdr)
1247 return -ENOBUFS;
ee688b00 1248
86e8cf98
JB		 1249 if (WARN_ON(!state))
1250 return -EINVAL;
ee688b00 1251
1b8ec87a 1252 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1253 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1254 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1255 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1256 cfg80211_rdev_list_generation))
8fdc621d
JB		 1257 goto nla_put_failure;
1258
3bb20556
JB		 1259 if (cmd != NL80211_CMD_NEW_WIPHY)
1260 goto finish;
1261
86e8cf98 1262 switch (state->split_start) {
3713b4e3
JB		 1263 case 0:
1264 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1265 rdev->wiphy.retry_short) ||
3713b4e3 1266 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1267 rdev->wiphy.retry_long) ||
3713b4e3 1268 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1269 rdev->wiphy.frag_threshold) ||
3713b4e3 1270 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1271 rdev->wiphy.rts_threshold) ||
3713b4e3 1272 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1273 rdev->wiphy.coverage_class) ||
3713b4e3 1274 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1275 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1276 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1277 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1278 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1279 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1280 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1281 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1282 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1283 rdev->wiphy.max_match_sets))
9360ffd1 1284 goto nla_put_failure;
3713b4e3 1285
1b8ec87a 1286 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1287 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1288 goto nla_put_failure;
1b8ec87a 1289 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1290 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1291 goto nla_put_failure;
1b8ec87a 1292 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1293 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1294 goto nla_put_failure;
1b8ec87a 1295 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1296 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1297 goto nla_put_failure;
1b8ec87a 1298 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1299 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1300 goto nla_put_failure;
1b8ec87a 1301 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1302 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1303 goto nla_put_failure;
86e8cf98
JB		 1304 state->split_start++;
1305 if (state->split)
3713b4e3
JB		 1306 break;
1307 case 1:
1308 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1309 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1310 rdev->wiphy.cipher_suites))
3713b4e3 1311 goto nla_put_failure;
4745fc09 1312
3713b4e3 1313 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1314 rdev->wiphy.max_num_pmkids))
3713b4e3 1315 goto nla_put_failure;
b23aa676 1316
1b8ec87a 1317 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1318 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1319 goto nla_put_failure;
b23aa676 1320
3713b4e3 1321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1322 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1323 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1324 rdev->wiphy.available_antennas_rx))
9360ffd1 1325 goto nla_put_failure;
b23aa676 1326
1b8ec87a 1327 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1328 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1329 rdev->wiphy.probe_resp_offload))
3713b4e3 1330 goto nla_put_failure;
8fdc621d 1331
1b8ec87a
ZG		 1332 if ((rdev->wiphy.available_antennas_tx ||
1333 rdev->wiphy.available_antennas_rx) &&
1334 rdev->ops->get_antenna) {
3713b4e3
JB		 1335 u32 tx_ant = 0, rx_ant = 0;
1336 int res;
1b8ec87a 1337 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1338 if (!res) {
1339 if (nla_put_u32(msg,
1340 NL80211_ATTR_WIPHY_ANTENNA_TX,
1341 tx_ant) ||
1342 nla_put_u32(msg,
1343 NL80211_ATTR_WIPHY_ANTENNA_RX,
1344 rx_ant))
1345 goto nla_put_failure;
1346 }
1347 }
a293911d 1348
86e8cf98
JB		 1349 state->split_start++;
1350 if (state->split)
3713b4e3
JB		 1351 break;
1352 case 2:
1353 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1354 rdev->wiphy.interface_modes))
3713b4e3 1355 goto nla_put_failure;
86e8cf98
JB		 1356 state->split_start++;
1357 if (state->split)
3713b4e3
JB		 1358 break;
1359 case 3:
1360 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1361 if (!nl_bands)
1362 goto nla_put_failure;
f7ca38df 1363
86e8cf98
JB		 1364 for (band = state->band_start;
1365 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1366 struct ieee80211_supported_band *sband;
2e161f78 1367
1b8ec87a 1368 sband = rdev->wiphy.bands[band];
2e161f78 1369
3713b4e3
JB		 1370 if (!sband)
1371 continue;
1372
1373 nl_band = nla_nest_start(msg, band);
1374 if (!nl_band)
2e161f78 1375 goto nla_put_failure;
3713b4e3 1376
86e8cf98 1377 switch (state->chan_start) {
3713b4e3
JB		 1378 case 0:
1379 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1380 goto nla_put_failure;
86e8cf98
JB		 1381 state->chan_start++;
1382 if (state->split)
3713b4e3
JB		 1383 break;
1384 default:
1385 /* add frequencies */
1386 nl_freqs = nla_nest_start(
1387 msg, NL80211_BAND_ATTR_FREQS);
1388 if (!nl_freqs)
1389 goto nla_put_failure;
1390
86e8cf98 1391 for (i = state->chan_start - 1;
3713b4e3
JB		 1392 i < sband->n_channels;
1393 i++) {
1394 nl_freq = nla_nest_start(msg, i);
1395 if (!nl_freq)
1396 goto nla_put_failure;
1397
1398 chan = &sband->channels[i];
1399
86e8cf98
JB		 1400 if (nl80211_msg_put_channel(
1401 msg, chan,
1402 state->split))
3713b4e3
JB		 1403 goto nla_put_failure;
1404
1405 nla_nest_end(msg, nl_freq);
86e8cf98 1406 if (state->split)
3713b4e3
JB		 1407 break;
1408 }
1409 if (i < sband->n_channels)
86e8cf98 1410 state->chan_start = i + 2;
3713b4e3 1411 else
86e8cf98 1412 state->chan_start = 0;
3713b4e3
JB		 1413 nla_nest_end(msg, nl_freqs);
1414 }
1415
1416 nla_nest_end(msg, nl_band);
1417
86e8cf98 1418 if (state->split) {
3713b4e3 1419 /* start again here */
86e8cf98 1420 if (state->chan_start)
3713b4e3
JB		 1421 band--;
1422 break;
2e161f78 1423 }
2e161f78 1424 }
3713b4e3 1425 nla_nest_end(msg, nl_bands);
2e161f78 1426
3713b4e3 1427 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1428 state->band_start = band + 1;
3713b4e3 1429 else
86e8cf98 1430 state->band_start = 0;
74b70a4e 1431
3713b4e3 1432 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1433 if (state->band_start == 0 && state->chan_start == 0)
1434 state->split_start++;
1435 if (state->split)
3713b4e3
JB		 1436 break;
1437 case 4:
1438 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1439 if (!nl_cmds)
2e161f78
JB		 1440 goto nla_put_failure;
1441
3713b4e3
JB		 1442 i = 0;
1443#define CMD(op, n) \
1444 do { \
1b8ec87a 1445 if (rdev->ops->op) { \
3713b4e3
JB		 1446 i++; \
1447 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1448 goto nla_put_failure; \
1449 } \
1450 } while (0)
1451
1452 CMD(add_virtual_intf, NEW_INTERFACE);
1453 CMD(change_virtual_intf, SET_INTERFACE);
1454 CMD(add_key, NEW_KEY);
1455 CMD(start_ap, START_AP);
1456 CMD(add_station, NEW_STATION);
1457 CMD(add_mpath, NEW_MPATH);
1458 CMD(update_mesh_config, SET_MESH_CONFIG);
1459 CMD(change_bss, SET_BSS);
1460 CMD(auth, AUTHENTICATE);
1461 CMD(assoc, ASSOCIATE);
1462 CMD(deauth, DEAUTHENTICATE);
1463 CMD(disassoc, DISASSOCIATE);
1464 CMD(join_ibss, JOIN_IBSS);
1465 CMD(join_mesh, JOIN_MESH);
1466 CMD(set_pmksa, SET_PMKSA);
1467 CMD(del_pmksa, DEL_PMKSA);
1468 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1469 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1470 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1471 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1472 CMD(mgmt_tx, FRAME);
1473 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1474 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1475 i++;
1476 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1477 goto nla_put_failure;
2e161f78 1478 }
1b8ec87a
ZG		 1479 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1480 rdev->ops->join_mesh) {
3713b4e3
JB		 1481 i++;
1482 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1483 goto nla_put_failure;
1484 }
1485 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1486 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1487 CMD(tdls_mgmt, TDLS_MGMT);
1488 CMD(tdls_oper, TDLS_OPER);
1489 }
1b8ec87a 1490 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1491 CMD(sched_scan_start, START_SCHED_SCAN);
1492 CMD(probe_client, PROBE_CLIENT);
1493 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1494 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1495 i++;
1496 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1497 goto nla_put_failure;
1498 }
1499 CMD(start_p2p_device, START_P2P_DEVICE);
1500 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1501 if (state->split) {
5de17984
AS		 1502 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1503 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1504 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1505 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1506 }
fa9ffc74 1507 CMD(set_qos_map, SET_QOS_MAP);
2e161f78 1508
3713b4e3
JB		 1509#ifdef CONFIG_NL80211_TESTMODE
1510 CMD(testmode_cmd, TESTMODE);
1511#endif
ff1b6e69 1512
3713b4e3 1513#undef CMD
ff1b6e69 1514
1b8ec87a 1515 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1516 i++;
1517 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1518 goto nla_put_failure;
ff1b6e69
JB		 1519 }
1520
1b8ec87a 1521 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1522 i++;
1523 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1524 goto nla_put_failure;
1525 }
1526
1527 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1528 state->split_start++;
1529 if (state->split)
3713b4e3
JB		 1530 break;
1531 case 5:
1b8ec87a
ZG		 1532 if (rdev->ops->remain_on_channel &&
1533 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1534 nla_put_u32(msg,
1535 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1536 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1537 goto nla_put_failure;
1538
1b8ec87a 1539 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1540 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1541 goto nla_put_failure;
1542
1543 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1544 goto nla_put_failure;
86e8cf98
JB		 1545 state->split_start++;
1546 if (state->split)
3713b4e3
JB		 1547 break;
1548 case 6:
1549#ifdef CONFIG_PM
1b8ec87a 1550 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1551 goto nla_put_failure;
86e8cf98
JB		 1552 state->split_start++;
1553 if (state->split)
3713b4e3
JB		 1554 break;
1555#else
86e8cf98 1556 state->split_start++;
dfb89c56 1557#endif
3713b4e3
JB		 1558 case 7:
1559 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1560 rdev->wiphy.software_iftypes))
3713b4e3 1561 goto nla_put_failure;
ff1b6e69 1562
1b8ec87a 1563 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1564 state->split))
3713b4e3 1565 goto nla_put_failure;
7527a782 1566
86e8cf98
JB		 1567 state->split_start++;
1568 if (state->split)
3713b4e3
JB		 1569 break;
1570 case 8:
1b8ec87a 1571 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1572 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1573 rdev->wiphy.ap_sme_capa))
3713b4e3 1574 goto nla_put_failure;
7527a782 1575
1b8ec87a 1576 features = rdev->wiphy.features;
fe1abafd
JB		 1577 /*
1578 * We can only add the per-channel limit information if the
1579 * dump is split, otherwise it makes it too big. Therefore
1580 * only advertise it in that case.
1581 */
86e8cf98 1582 if (state->split)
fe1abafd
JB		 1583 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1584 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1585 goto nla_put_failure;
562a7480 1586
1b8ec87a 1587 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1588 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1589 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1590 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1591 goto nla_put_failure;
1f074bd8 1592
1b8ec87a
ZG		 1593 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1594 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1595 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1596 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1597 goto nla_put_failure;
7e7c8926 1598
3713b4e3
JB		 1599 /*
1600 * Any information below this point is only available to
1601 * applications that can deal with it being split. This
1602 * helps ensure that newly added capabilities don't break
1603 * older tools by overrunning their buffers.
1604 *
1605 * We still increment split_start so that in the split
1606 * case we'll continue with more data in the next round,
1607 * but break unconditionally so unsplit data stops here.
1608 */
86e8cf98 1609 state->split_start++;
3713b4e3
JB		 1610 break;
1611 case 9:
1b8ec87a 1612 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1613 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1614 rdev->wiphy.extended_capabilities_len,
1615 rdev->wiphy.extended_capabilities) ||
fe1abafd 1616 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1617 rdev->wiphy.extended_capabilities_len,
1618 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1619 goto nla_put_failure;
a50df0c4 1620
1b8ec87a 1621 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1622 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1623 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1624 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1625 goto nla_put_failure;
1626
be29b99a
AK		 1627 state->split_start++;
1628 break;
1629 case 10:
1b8ec87a 1630 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1631 goto nla_put_failure;
1632
1b8ec87a 1633 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1634 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1635 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1636 goto nla_put_failure;
b43504cf 1637
1b8ec87a 1638 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1639 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1640 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1641 goto nla_put_failure;
1642
ad7e718c
JB		 1643 state->split_start++;
1644 break;
1645 case 11:
1b8ec87a 1646 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1647 const struct nl80211_vendor_cmd_info *info;
1648 struct nlattr *nested;
1649
1650 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1651 if (!nested)
1652 goto nla_put_failure;
1653
1b8ec87a
ZG		 1654 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1655 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1656 if (nla_put(msg, i + 1, sizeof(*info), info))
1657 goto nla_put_failure;
1658 }
1659 nla_nest_end(msg, nested);
1660 }
1661
1b8ec87a 1662 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1663 const struct nl80211_vendor_cmd_info *info;
1664 struct nlattr *nested;
ad7e718c 1665
567ffc35
JB		 1666 nested = nla_nest_start(msg,
1667 NL80211_ATTR_VENDOR_EVENTS);
1668 if (!nested)
ad7e718c 1669 goto nla_put_failure;
567ffc35 1670
1b8ec87a
ZG		 1671 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1672 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1673 if (nla_put(msg, i + 1, sizeof(*info), info))
1674 goto nla_put_failure;
1675 }
1676 nla_nest_end(msg, nested);
1677 }
9a774c78
AO		 1678 state->split_start++;
1679 break;
1680 case 12:
1681 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1682 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1683 rdev->wiphy.max_num_csa_counters))
1684 goto nla_put_failure;
01e0daa4 1685
3713b4e3 1686 /* done */
86e8cf98 1687 state->split_start = 0;
3713b4e3
JB		 1688 break;
1689 }
3bb20556 1690 finish:
55682965
JB		 1691 return genlmsg_end(msg, hdr);
1692
1693 nla_put_failure:
bc3ed28c
TG		 1694 genlmsg_cancel(msg, hdr);
1695 return -EMSGSIZE;
55682965
JB		 1696}
1697
86e8cf98
JB		 1698static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1699 struct netlink_callback *cb,
1700 struct nl80211_dump_wiphy_state *state)
1701{
1702 struct nlattr **tb = nl80211_fam.attrbuf;
1703 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1704 tb, nl80211_fam.maxattr, nl80211_policy);
1705 /* ignore parse errors for backward compatibility */
1706 if (ret)
1707 return 0;
1708
1709 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1710 if (tb[NL80211_ATTR_WIPHY])
1711 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1712 if (tb[NL80211_ATTR_WDEV])
1713 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1714 if (tb[NL80211_ATTR_IFINDEX]) {
1715 struct net_device *netdev;
1716 struct cfg80211_registered_device *rdev;
1717 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1718
7f2b8562 1719 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1720 if (!netdev)
1721 return -ENODEV;
1722 if (netdev->ieee80211_ptr) {
f26cbf40 1723 rdev = wiphy_to_rdev(
86e8cf98
JB		 1724 netdev->ieee80211_ptr->wiphy);
1725 state->filter_wiphy = rdev->wiphy_idx;
1726 }
86e8cf98
JB		 1727 }
1728
1729 return 0;
1730}
1731
55682965
JB		 1732static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1733{
645e77de 1734 int idx = 0, ret;
86e8cf98 1735 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1736 struct cfg80211_registered_device *rdev;
3a5a423b 1737
5fe231e8 1738 rtnl_lock();
86e8cf98
JB		 1739 if (!state) {
1740 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1741 if (!state) {
1742 rtnl_unlock();
86e8cf98 1743 return -ENOMEM;
3713b4e3 1744 }
86e8cf98
JB		 1745 state->filter_wiphy = -1;
1746 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1747 if (ret) {
1748 kfree(state);
1749 rtnl_unlock();
1750 return ret;
3713b4e3 1751 }
86e8cf98 1752 cb->args[0] = (long)state;
3713b4e3
JB		 1753 }
1754
1b8ec87a
ZG		 1755 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1756 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1757 continue;
86e8cf98 1758 if (++idx <= state->start)
55682965 1759 continue;
86e8cf98 1760 if (state->filter_wiphy != -1 &&
1b8ec87a 1761 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1762 continue;
1763 /* attempt to fit multiple wiphy data chunks into the skb */
1764 do {
3bb20556
JB		 1765 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1766 skb,
3713b4e3
JB		 1767 NETLINK_CB(cb->skb).portid,
1768 cb->nlh->nlmsg_seq,
86e8cf98 1769 NLM_F_MULTI, state);
3713b4e3
JB		 1770 if (ret < 0) {
1771 /*
1772 * If sending the wiphy data didn't fit (ENOBUFS
1773 * or EMSGSIZE returned), this SKB is still
1774 * empty (so it's not too big because another
1775 * wiphy dataset is already in the skb) and
1776 * we've not tried to adjust the dump allocation
1777 * yet ... then adjust the alloc size to be
1778 * bigger, and return 1 but with the empty skb.
1779 * This results in an empty message being RX'ed
1780 * in userspace, but that is ignored.
1781 *
1782 * We can then retry with the larger buffer.
1783 */
1784 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1785 !skb->len && !state->split &&
3713b4e3
JB		 1786 cb->min_dump_alloc < 4096) {
1787 cb->min_dump_alloc = 4096;
f12cb289 1788 state->split_start = 0;
d98cae64 1789 rtnl_unlock();
3713b4e3
JB		 1790 return 1;
1791 }
1792 idx--;
1793 break;
645e77de 1794 }
86e8cf98 1795 } while (state->split_start > 0);
3713b4e3 1796 break;
55682965 1797 }
5fe231e8 1798 rtnl_unlock();
55682965 1799
86e8cf98 1800 state->start = idx;
55682965
JB		 1801
1802 return skb->len;
1803}
1804
86e8cf98
JB		 1805static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1806{
1807 kfree((void *)cb->args[0]);
1808 return 0;
1809}
1810
55682965
JB		 1811static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1812{
1813 struct sk_buff *msg;
1b8ec87a 1814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1815 struct nl80211_dump_wiphy_state state = {};
55682965 1816
645e77de 1817 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1818 if (!msg)
4c476991 1819 return -ENOMEM;
55682965 1820
3bb20556
JB		 1821 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1822 info->snd_portid, info->snd_seq, 0,
86e8cf98 1823 &state) < 0) {
4c476991
JB		 1824 nlmsg_free(msg);
1825 return -ENOBUFS;
1826 }
55682965 1827
134e6375 1828 return genlmsg_reply(msg, info);
55682965
JB		 1829}
1830
31888487
JM		 1831static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1832 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1833 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1834 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1835 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1836 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1837};
1838
1839static int parse_txq_params(struct nlattr *tb[],
1840 struct ieee80211_txq_params *txq_params)
1841{
a3304b0a 1842 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1843 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1844 !tb[NL80211_TXQ_ATTR_AIFS])
1845 return -EINVAL;
1846
a3304b0a 1847 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1848 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1849 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1850 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1851 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1852
a3304b0a
JB		 1853 if (txq_params->ac >= NL80211_NUM_ACS)
1854 return -EINVAL;
1855
31888487
JM		 1856 return 0;
1857}
1858
f444de05
JB		 1859static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1860{
1861 /*
cc1d2806
JB		 1862 * You can only set the channel explicitly for WDS interfaces,
1863 * all others have their channel managed via their respective
1864 * "establish a connection" command (connect, join, ...)
1865 *
1866 * For AP/GO and mesh mode, the channel can be set with the
1867 * channel userspace API, but is only stored and passed to the
1868 * low-level driver when the AP starts or the mesh is joined.
1869 * This is for backward compatibility, userspace can also give
1870 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1871 *
1872 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1873 * whatever else is going on, so they have their own special
1874 * operation to set the monitor channel if possible.
f444de05
JB		 1875 */
1876 return !wdev ||
1877 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1878 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1879 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1880 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1881}
1882
683b6d3b
JB		 1883static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1884 struct genl_info *info,
1885 struct cfg80211_chan_def *chandef)
1886{
dbeca2ea 1887 u32 control_freq;
683b6d3b
JB		 1888
1889 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1890 return -EINVAL;
1891
1892 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1893
1894 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1895 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1896 chandef->center_freq1 = control_freq;
1897 chandef->center_freq2 = 0;
683b6d3b
JB		 1898
1899 /* Primary channel not allowed */
1900 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1901 return -EINVAL;
1902
3d9d1d66
JB		 1903 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1904 enum nl80211_channel_type chantype;
1905
1906 chantype = nla_get_u32(
1907 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1908
1909 switch (chantype) {
1910 case NL80211_CHAN_NO_HT:
1911 case NL80211_CHAN_HT20:
1912 case NL80211_CHAN_HT40PLUS:
1913 case NL80211_CHAN_HT40MINUS:
1914 cfg80211_chandef_create(chandef, chandef->chan,
1915 chantype);
1916 break;
1917 default:
1918 return -EINVAL;
1919 }
1920 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1921 chandef->width =
1922 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1923 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1924 chandef->center_freq1 =
1925 nla_get_u32(
1926 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1927 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1928 chandef->center_freq2 =
1929 nla_get_u32(
1930 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1931 }
1932
9f5e8f6e 1933 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1934 return -EINVAL;
1935
9f5e8f6e
JB		 1936 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1937 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1938 return -EINVAL;
1939
2f301ab2
SW		 1940 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1941 chandef->width == NL80211_CHAN_WIDTH_10) &&
1942 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1943 return -EINVAL;
1944
683b6d3b
JB		 1945 return 0;
1946}
1947
f444de05 1948static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1949 struct net_device *dev,
f444de05
JB		 1950 struct genl_info *info)
1951{
683b6d3b 1952 struct cfg80211_chan_def chandef;
f444de05 1953 int result;
e8c9bd5b 1954 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1955 struct wireless_dev *wdev = NULL;
e8c9bd5b 1956
e16821bc
JM		 1957 if (dev)
1958 wdev = dev->ieee80211_ptr;
f444de05
JB		 1959 if (!nl80211_can_set_dev_channel(wdev))
1960 return -EOPNOTSUPP;
e16821bc
JM		 1961 if (wdev)
1962 iftype = wdev->iftype;
f444de05 1963
683b6d3b
JB		 1964 result = nl80211_parse_chandef(rdev, info, &chandef);
1965 if (result)
1966 return result;
f444de05 1967
e8c9bd5b 1968 switch (iftype) {
aa430da4
JB		 1969 case NL80211_IFTYPE_AP:
1970 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1971 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1972 result = -EINVAL;
1973 break;
1974 }
e16821bc
JM		 1975 if (wdev->beacon_interval) {
1976 if (!dev || !rdev->ops->set_ap_chanwidth ||
1977 !(rdev->wiphy.features &
1978 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1979 result = -EBUSY;
1980 break;
1981 }
1982
1983 /* Only allow dynamic channel width changes */
1984 if (chandef.chan != wdev->preset_chandef.chan) {
1985 result = -EBUSY;
1986 break;
1987 }
1988 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1989 if (result)
1990 break;
1991 }
683b6d3b 1992 wdev->preset_chandef = chandef;
aa430da4
JB		 1993 result = 0;
1994 break;
cc1d2806 1995 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1996 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1997 break;
e8c9bd5b 1998 case NL80211_IFTYPE_MONITOR:
683b6d3b 1999 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2000 break;
aa430da4 2001 default:
e8c9bd5b 2002 result = -EINVAL;
f444de05 2003 }
f444de05
JB		 2004
2005 return result;
2006}
2007
2008static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2009{
4c476991
JB		 2010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2011 struct net_device *netdev = info->user_ptr[1];
f444de05 2012
e16821bc 2013 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2014}
2015
e8347eba
BJ		 2016static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2017{
43b19952
JB		 2018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2019 struct net_device *dev = info->user_ptr[1];
2020 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2021 const u8 *bssid;
e8347eba
BJ		 2022
2023 if (!info->attrs[NL80211_ATTR_MAC])
2024 return -EINVAL;
2025
43b19952
JB		 2026 if (netif_running(dev))
2027 return -EBUSY;
e8347eba 2028
43b19952
JB		 2029 if (!rdev->ops->set_wds_peer)
2030 return -EOPNOTSUPP;
e8347eba 2031
43b19952
JB		 2032 if (wdev->iftype != NL80211_IFTYPE_WDS)
2033 return -EOPNOTSUPP;
e8347eba
BJ		 2034
2035 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2036 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2037}
2038
2039
55682965
JB		 2040static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2041{
2042 struct cfg80211_registered_device *rdev;
f444de05
JB		 2043 struct net_device *netdev = NULL;
2044 struct wireless_dev *wdev;
a1e567c8 2045 int result = 0, rem_txq_params = 0;
31888487 2046 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2047 u32 changed;
2048 u8 retry_short = 0, retry_long = 0;
2049 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2050 u8 coverage_class = 0;
55682965 2051
5fe231e8
JB		 2052 ASSERT_RTNL();
2053
f444de05
JB		 2054 /*
2055 * Try to find the wiphy and netdev. Normally this
2056 * function shouldn't need the netdev, but this is
2057 * done for backward compatibility -- previously
2058 * setting the channel was done per wiphy, but now
2059 * it is per netdev. Previous userland like hostapd
2060 * also passed a netdev to set_wiphy, so that it is
2061 * possible to let that go to the right netdev!
2062 */
4bbf4d56 2063
f444de05
JB		 2064 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2065 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2066
7f2b8562 2067 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2068 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2069 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2070 else
f444de05 2071 netdev = NULL;
4bbf4d56
JB		 2072 }
2073
f444de05 2074 if (!netdev) {
878d9ec7
JB		 2075 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2076 info->attrs);
5fe231e8 2077 if (IS_ERR(rdev))
4c476991 2078 return PTR_ERR(rdev);
f444de05
JB		 2079 wdev = NULL;
2080 netdev = NULL;
2081 result = 0;
71fe96bf 2082 } else
f444de05 2083 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2084
2085 /*
2086 * end workaround code, by now the rdev is available
2087 * and locked, and wdev may or may not be NULL.
2088 */
4bbf4d56
JB		 2089
2090 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2091 result = cfg80211_dev_rename(
2092 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2093
4bbf4d56 2094 if (result)
7f2b8562 2095 return result;
31888487
JM		 2096
2097 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2098 struct ieee80211_txq_params txq_params;
2099 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2100
7f2b8562
YX		 2101 if (!rdev->ops->set_txq_params)
2102 return -EOPNOTSUPP;
31888487 2103
7f2b8562
YX		 2104 if (!netdev)
2105 return -EINVAL;
f70f01c2 2106
133a3ff2 2107 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2108 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2109 return -EINVAL;
133a3ff2 2110
7f2b8562
YX		 2111 if (!netif_running(netdev))
2112 return -ENETDOWN;
2b5f8b0b 2113
31888487
JM		 2114 nla_for_each_nested(nl_txq_params,
2115 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2116 rem_txq_params) {
ae811e21
JB		 2117 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2118 nla_data(nl_txq_params),
2119 nla_len(nl_txq_params),
2120 txq_params_policy);
2121 if (result)
2122 return result;
31888487
JM		 2123 result = parse_txq_params(tb, &txq_params);
2124 if (result)
7f2b8562 2125 return result;
31888487 2126
e35e4d28
HG		 2127 result = rdev_set_txq_params(rdev, netdev,
2128 &txq_params);
31888487 2129 if (result)
7f2b8562 2130 return result;
31888487
JM		 2131 }
2132 }
55682965 2133
72bdcf34 2134 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2135 result = __nl80211_set_channel(
2136 rdev,
2137 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2138 info);
72bdcf34 2139 if (result)
7f2b8562 2140 return result;
72bdcf34
JM		 2141 }
2142
98d2ff8b 2143 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2144 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2145 enum nl80211_tx_power_setting type;
2146 int idx, mbm = 0;
2147
c8442118
JB		 2148 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2149 txp_wdev = NULL;
2150
7f2b8562
YX		 2151 if (!rdev->ops->set_tx_power)
2152 return -EOPNOTSUPP;
98d2ff8b
JO		 2153
2154 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2155 type = nla_get_u32(info->attrs[idx]);
2156
2157 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2158 (type != NL80211_TX_POWER_AUTOMATIC))
2159 return -EINVAL;
98d2ff8b
JO		 2160
2161 if (type != NL80211_TX_POWER_AUTOMATIC) {
2162 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2163 mbm = nla_get_u32(info->attrs[idx]);
2164 }
2165
c8442118 2166 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2167 if (result)
7f2b8562 2168 return result;
98d2ff8b
JO		 2169 }
2170
afe0cbf8
BR		 2171 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2172 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2173 u32 tx_ant, rx_ant;
7f531e03
BR		 2174 if ((!rdev->wiphy.available_antennas_tx &&
2175 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2176 !rdev->ops->set_antenna)
2177 return -EOPNOTSUPP;
afe0cbf8
BR		 2178
2179 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2180 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2181
a7ffac95 2182 /* reject antenna configurations which don't match the
7f531e03
BR		 2183 * available antenna masks, except for the "all" mask */
2184 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2185 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2186 return -EINVAL;
a7ffac95 2187
7f531e03
BR		 2188 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2189 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2190
e35e4d28 2191 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2192 if (result)
7f2b8562 2193 return result;
afe0cbf8
BR		 2194 }
2195
b9a5f8ca
JM		 2196 changed = 0;
2197
2198 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2199 retry_short = nla_get_u8(
2200 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2201 if (retry_short == 0)
2202 return -EINVAL;
2203
b9a5f8ca
JM		 2204 changed |= WIPHY_PARAM_RETRY_SHORT;
2205 }
2206
2207 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2208 retry_long = nla_get_u8(
2209 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2210 if (retry_long == 0)
2211 return -EINVAL;
2212
b9a5f8ca
JM		 2213 changed |= WIPHY_PARAM_RETRY_LONG;
2214 }
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2217 frag_threshold = nla_get_u32(
2218 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2219 if (frag_threshold < 256)
2220 return -EINVAL;
2221
b9a5f8ca
JM		 2222 if (frag_threshold != (u32) -1) {
2223 /*
2224 * Fragments (apart from the last one) are required to
2225 * have even length. Make the fragmentation code
2226 * simpler by stripping LSB should someone try to use
2227 * odd threshold value.
2228 */
2229 frag_threshold &= ~0x1;
2230 }
2231 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2232 }
2233
2234 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2235 rts_threshold = nla_get_u32(
2236 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2237 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2238 }
2239
81077e82
LT		 2240 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2241 coverage_class = nla_get_u8(
2242 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2243 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2244 }
2245
b9a5f8ca
JM		 2246 if (changed) {
2247 u8 old_retry_short, old_retry_long;
2248 u32 old_frag_threshold, old_rts_threshold;
81077e82 2249 u8 old_coverage_class;
b9a5f8ca 2250
7f2b8562
YX		 2251 if (!rdev->ops->set_wiphy_params)
2252 return -EOPNOTSUPP;
b9a5f8ca
JM		 2253
2254 old_retry_short = rdev->wiphy.retry_short;
2255 old_retry_long = rdev->wiphy.retry_long;
2256 old_frag_threshold = rdev->wiphy.frag_threshold;
2257 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2258 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2259
2260 if (changed & WIPHY_PARAM_RETRY_SHORT)
2261 rdev->wiphy.retry_short = retry_short;
2262 if (changed & WIPHY_PARAM_RETRY_LONG)
2263 rdev->wiphy.retry_long = retry_long;
2264 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2265 rdev->wiphy.frag_threshold = frag_threshold;
2266 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2267 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2268 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2269 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2270
e35e4d28 2271 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2272 if (result) {
2273 rdev->wiphy.retry_short = old_retry_short;
2274 rdev->wiphy.retry_long = old_retry_long;
2275 rdev->wiphy.frag_threshold = old_frag_threshold;
2276 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2277 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2278 }
2279 }
7f2b8562 2280 return 0;
55682965
JB		 2281}
2282
71bbc994
JB		 2283static inline u64 wdev_id(struct wireless_dev *wdev)
2284{
2285 return (u64)wdev->identifier |
f26cbf40 2286 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2287}
55682965 2288
683b6d3b 2289static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2290 const struct cfg80211_chan_def *chandef)
683b6d3b 2291{
9f5e8f6e 2292 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2293
683b6d3b
JB		 2294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2295 chandef->chan->center_freq))
2296 return -ENOBUFS;
3d9d1d66
JB		 2297 switch (chandef->width) {
2298 case NL80211_CHAN_WIDTH_20_NOHT:
2299 case NL80211_CHAN_WIDTH_20:
2300 case NL80211_CHAN_WIDTH_40:
2301 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2302 cfg80211_get_chandef_type(chandef)))
2303 return -ENOBUFS;
2304 break;
2305 default:
2306 break;
2307 }
2308 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2309 return -ENOBUFS;
2310 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2311 return -ENOBUFS;
2312 if (chandef->center_freq2 &&
2313 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2314 return -ENOBUFS;
2315 return 0;
2316}
2317
15e47304 2318static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2319 struct cfg80211_registered_device *rdev,
72fb2abc 2320 struct wireless_dev *wdev)
55682965 2321{
72fb2abc 2322 struct net_device *dev = wdev->netdev;
55682965
JB		 2323 void *hdr;
2324
15e47304 2325 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2326 if (!hdr)
2327 return -1;
2328
72fb2abc
JB		 2329 if (dev &&
2330 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2331 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2332 goto nla_put_failure;
2333
2334 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2335 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2336 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2337 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2338 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2339 rdev->devlist_generation ^
2340 (cfg80211_rdev_list_generation << 2)))
2341 goto nla_put_failure;
f5ea9120 2342
5b7ccaf3 2343 if (rdev->ops->get_channel) {
683b6d3b
JB		 2344 int ret;
2345 struct cfg80211_chan_def chandef;
2346
2347 ret = rdev_get_channel(rdev, wdev, &chandef);
2348 if (ret == 0) {
2349 if (nl80211_send_chandef(msg, &chandef))
2350 goto nla_put_failure;
2351 }
d91df0e3
PF		 2352 }
2353
b84e7a05
AQ		 2354 if (wdev->ssid_len) {
2355 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2356 goto nla_put_failure;
2357 }
2358
55682965
JB		 2359 return genlmsg_end(msg, hdr);
2360
2361 nla_put_failure:
bc3ed28c
TG		 2362 genlmsg_cancel(msg, hdr);
2363 return -EMSGSIZE;
55682965
JB		 2364}
2365
2366static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2367{
2368 int wp_idx = 0;
2369 int if_idx = 0;
2370 int wp_start = cb->args[0];
2371 int if_start = cb->args[1];
f5ea9120 2372 struct cfg80211_registered_device *rdev;
55682965
JB		 2373 struct wireless_dev *wdev;
2374
5fe231e8 2375 rtnl_lock();
f5ea9120
JB		 2376 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2377 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2378 continue;
bba95fef
JB		 2379 if (wp_idx < wp_start) {
2380 wp_idx++;
55682965 2381 continue;
bba95fef 2382 }
55682965
JB		 2383 if_idx = 0;
2384
89a54e48 2385 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2386 if (if_idx < if_start) {
2387 if_idx++;
55682965 2388 continue;
bba95fef 2389 }
15e47304 2390 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2391 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2392 rdev, wdev) < 0) {
bba95fef
JB		 2393 goto out;
2394 }
2395 if_idx++;
55682965 2396 }
bba95fef
JB		 2397
2398 wp_idx++;
55682965 2399 }
bba95fef 2400 out:
5fe231e8 2401 rtnl_unlock();
55682965
JB		 2402
2403 cb->args[0] = wp_idx;
2404 cb->args[1] = if_idx;
2405
2406 return skb->len;
2407}
2408
2409static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2410{
2411 struct sk_buff *msg;
1b8ec87a 2412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2413 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2414
fd2120ca 2415 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2416 if (!msg)
4c476991 2417 return -ENOMEM;
55682965 2418
15e47304 2419 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2420 rdev, wdev) < 0) {
4c476991
JB		 2421 nlmsg_free(msg);
2422 return -ENOBUFS;
2423 }
55682965 2424
134e6375 2425 return genlmsg_reply(msg, info);
55682965
JB		 2426}
2427
66f7ac50
MW		 2428static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2429 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2430 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2431 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2432 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2433 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2434 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2435};
2436
2437static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2438{
2439 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2440 int flag;
2441
2442 *mntrflags = 0;
2443
2444 if (!nla)
2445 return -EINVAL;
2446
2447 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2448 nla, mntr_flags_policy))
2449 return -EINVAL;
2450
2451 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2452 if (flags[flag])
2453 *mntrflags |= (1<<flag);
2454
2455 return 0;
2456}
2457
9bc383de 2458static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2459 struct net_device *netdev, u8 use_4addr,
2460 enum nl80211_iftype iftype)
9bc383de 2461{
ad4bb6f8 2462 if (!use_4addr) {
f350a0a8 2463 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2464 return -EBUSY;
9bc383de 2465 return 0;
ad4bb6f8 2466 }
9bc383de
JB		 2467
2468 switch (iftype) {
2469 case NL80211_IFTYPE_AP_VLAN:
2470 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2471 return 0;
2472 break;
2473 case NL80211_IFTYPE_STATION:
2474 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2475 return 0;
2476 break;
2477 default:
2478 break;
2479 }
2480
2481 return -EOPNOTSUPP;
2482}
2483
55682965
JB		 2484static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2485{
4c476991 2486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2487 struct vif_params params;
e36d56b6 2488 int err;
04a773ad 2489 enum nl80211_iftype otype, ntype;
4c476991 2490 struct net_device *dev = info->user_ptr[1];
92ffe055 2491 u32 _flags, *flags = NULL;
ac7f9cfa 2492 bool change = false;
55682965 2493
2ec600d6
LCC		 2494 memset(&params, 0, sizeof(params));
2495
04a773ad 2496 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2497
723b038d 2498 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2499 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2500 if (otype != ntype)
ac7f9cfa 2501 change = true;
4c476991
JB		 2502 if (ntype > NL80211_IFTYPE_MAX)
2503 return -EINVAL;
723b038d
JB		 2504 }
2505
92ffe055 2506 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2507 struct wireless_dev *wdev = dev->ieee80211_ptr;
2508
4c476991
JB		 2509 if (ntype != NL80211_IFTYPE_MESH_POINT)
2510 return -EINVAL;
29cbe68c
JB		 2511 if (netif_running(dev))
2512 return -EBUSY;
2513
2514 wdev_lock(wdev);
2515 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2516 IEEE80211_MAX_MESH_ID_LEN);
2517 wdev->mesh_id_up_len =
2518 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2519 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2520 wdev->mesh_id_up_len);
2521 wdev_unlock(wdev);
2ec600d6
LCC		 2522 }
2523
8b787643
FF		 2524 if (info->attrs[NL80211_ATTR_4ADDR]) {
2525 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2526 change = true;
ad4bb6f8 2527 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2528 if (err)
4c476991 2529 return err;
8b787643
FF		 2530 } else {
2531 params.use_4addr = -1;
2532 }
2533
92ffe055 2534 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2535 if (ntype != NL80211_IFTYPE_MONITOR)
2536 return -EINVAL;
92ffe055
JB		 2537 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2538 &_flags);
ac7f9cfa 2539 if (err)
4c476991 2540 return err;
ac7f9cfa
JB		 2541
2542 flags = &_flags;
2543 change = true;
92ffe055 2544 }
3b85875a 2545
18003297 2546 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2547 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2548 return -EOPNOTSUPP;
2549
ac7f9cfa 2550 if (change)
3d54d255 2551 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2552 else
2553 err = 0;
60719ffd 2554
9bc383de
JB		 2555 if (!err && params.use_4addr != -1)
2556 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2557
55682965
JB		 2558 return err;
2559}
2560
2561static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2562{
4c476991 2563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2564 struct vif_params params;
84efbb84 2565 struct wireless_dev *wdev;
1c90f9d4 2566 struct sk_buff *msg;
55682965
JB		 2567 int err;
2568 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2569 u32 flags;
55682965 2570
78f22b6a
JB		 2571 /* to avoid failing a new interface creation due to pending removal */
2572 cfg80211_destroy_ifaces(rdev);
2573
2ec600d6
LCC		 2574 memset(&params, 0, sizeof(params));
2575
55682965
JB		 2576 if (!info->attrs[NL80211_ATTR_IFNAME])
2577 return -EINVAL;
2578
2579 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2580 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2581 if (type > NL80211_IFTYPE_MAX)
2582 return -EINVAL;
2583 }
2584
79c97e97 2585 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2586 !(rdev->wiphy.interface_modes & (1 << type)))
2587 return -EOPNOTSUPP;
55682965 2588
1c18f145
AS		 2589 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2590 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2591 ETH_ALEN);
2592 if (!is_valid_ether_addr(params.macaddr))
2593 return -EADDRNOTAVAIL;
2594 }
2595
9bc383de 2596 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2597 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2598 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2599 if (err)
4c476991 2600 return err;
9bc383de 2601 }
8b787643 2602
1c90f9d4
JB		 2603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2604 if (!msg)
2605 return -ENOMEM;
2606
66f7ac50
MW		 2607 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2608 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2609 &flags);
e057d3c3 2610
18003297 2611 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2612 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2613 return -EOPNOTSUPP;
2614
e35e4d28
HG		 2615 wdev = rdev_add_virtual_intf(rdev,
2616 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2617 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2618 if (IS_ERR(wdev)) {
2619 nlmsg_free(msg);
84efbb84 2620 return PTR_ERR(wdev);
1c90f9d4 2621 }
2ec600d6 2622
78f22b6a
JB		 2623 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2624 wdev->owner_nlportid = info->snd_portid;
2625
98104fde
JB		 2626 switch (type) {
2627 case NL80211_IFTYPE_MESH_POINT:
2628 if (!info->attrs[NL80211_ATTR_MESH_ID])
2629 break;
29cbe68c
JB		 2630 wdev_lock(wdev);
2631 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2632 IEEE80211_MAX_MESH_ID_LEN);
2633 wdev->mesh_id_up_len =
2634 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2635 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2636 wdev->mesh_id_up_len);
2637 wdev_unlock(wdev);
98104fde
JB		 2638 break;
2639 case NL80211_IFTYPE_P2P_DEVICE:
2640 /*
2641 * P2P Device doesn't have a netdev, so doesn't go
2642 * through the netdev notifier and must be added here
2643 */
2644 mutex_init(&wdev->mtx);
2645 INIT_LIST_HEAD(&wdev->event_list);
2646 spin_lock_init(&wdev->event_lock);
2647 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2648 spin_lock_init(&wdev->mgmt_registrations_lock);
2649
98104fde
JB		 2650 wdev->identifier = ++rdev->wdev_id;
2651 list_add_rcu(&wdev->list, &rdev->wdev_list);
2652 rdev->devlist_generation++;
98104fde
JB		 2653 break;
2654 default:
2655 break;
29cbe68c
JB		 2656 }
2657
15e47304 2658 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2659 rdev, wdev) < 0) {
2660 nlmsg_free(msg);
2661 return -ENOBUFS;
2662 }
2663
2664 return genlmsg_reply(msg, info);
55682965
JB		 2665}
2666
2667static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2668{
4c476991 2669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2670 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2671
4c476991
JB		 2672 if (!rdev->ops->del_virtual_intf)
2673 return -EOPNOTSUPP;
55682965 2674
84efbb84
JB		 2675 /*
2676 * If we remove a wireless device without a netdev then clear
2677 * user_ptr[1] so that nl80211_post_doit won't dereference it
2678 * to check if it needs to do dev_put(). Otherwise it crashes
2679 * since the wdev has been freed, unlike with a netdev where
2680 * we need the dev_put() for the netdev to really be freed.
2681 */
2682 if (!wdev->netdev)
2683 info->user_ptr[1] = NULL;
2684
e35e4d28 2685 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2686}
2687
1d9d9213
SW		 2688static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2689{
2690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2691 struct net_device *dev = info->user_ptr[1];
2692 u16 noack_map;
2693
2694 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2695 return -EINVAL;
2696
2697 if (!rdev->ops->set_noack_map)
2698 return -EOPNOTSUPP;
2699
2700 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2701
e35e4d28 2702 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2703}
2704
41ade00f
JB		 2705struct get_key_cookie {
2706 struct sk_buff *msg;
2707 int error;
b9454e83 2708 int idx;
41ade00f
JB		 2709};
2710
2711static void get_key_callback(void *c, struct key_params *params)
2712{
b9454e83 2713 struct nlattr *key;
41ade00f
JB		 2714 struct get_key_cookie *cookie = c;
2715
9360ffd1
DM		 2716 if ((params->key &&
2717 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2718 params->key_len, params->key)) ||
2719 (params->seq &&
2720 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2721 params->seq_len, params->seq)) ||
2722 (params->cipher &&
2723 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2724 params->cipher)))
2725 goto nla_put_failure;
41ade00f 2726
b9454e83
JB		 2727 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2728 if (!key)
2729 goto nla_put_failure;
2730
9360ffd1
DM		 2731 if ((params->key &&
2732 nla_put(cookie->msg, NL80211_KEY_DATA,
2733 params->key_len, params->key)) ||
2734 (params->seq &&
2735 nla_put(cookie->msg, NL80211_KEY_SEQ,
2736 params->seq_len, params->seq)) ||
2737 (params->cipher &&
2738 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2739 params->cipher)))
2740 goto nla_put_failure;
b9454e83 2741
9360ffd1
DM		 2742 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2743 goto nla_put_failure;
b9454e83
JB		 2744
2745 nla_nest_end(cookie->msg, key);
2746
41ade00f
JB		 2747 return;
2748 nla_put_failure:
2749 cookie->error = 1;
2750}
2751
2752static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2753{
4c476991 2754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2755 int err;
4c476991 2756 struct net_device *dev = info->user_ptr[1];
41ade00f 2757 u8 key_idx = 0;
e31b8213
JB		 2758 const u8 *mac_addr = NULL;
2759 bool pairwise;
41ade00f
JB		 2760 struct get_key_cookie cookie = {
2761 .error = 0,
2762 };
2763 void *hdr;
2764 struct sk_buff *msg;
2765
2766 if (info->attrs[NL80211_ATTR_KEY_IDX])
2767 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2768
3cfcf6ac 2769 if (key_idx > 5)
41ade00f
JB		 2770 return -EINVAL;
2771
2772 if (info->attrs[NL80211_ATTR_MAC])
2773 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2774
e31b8213
JB		 2775 pairwise = !!mac_addr;
2776 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2777 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2778 if (kt >= NUM_NL80211_KEYTYPES)
2779 return -EINVAL;
2780 if (kt != NL80211_KEYTYPE_GROUP &&
2781 kt != NL80211_KEYTYPE_PAIRWISE)
2782 return -EINVAL;
2783 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2784 }
2785
4c476991
JB		 2786 if (!rdev->ops->get_key)
2787 return -EOPNOTSUPP;
41ade00f 2788
fd2120ca 2789 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2790 if (!msg)
2791 return -ENOMEM;
41ade00f 2792
15e47304 2793 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2794 NL80211_CMD_NEW_KEY);
cb35fba3 2795 if (!hdr)
9fe271af 2796 goto nla_put_failure;
41ade00f
JB		 2797
2798 cookie.msg = msg;
b9454e83 2799 cookie.idx = key_idx;
41ade00f 2800
9360ffd1
DM		 2801 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2802 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2803 goto nla_put_failure;
2804 if (mac_addr &&
2805 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2806 goto nla_put_failure;
41ade00f 2807
e31b8213
JB		 2808 if (pairwise && mac_addr &&
2809 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2810 return -ENOENT;
2811
e35e4d28
HG		 2812 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2813 get_key_callback);
41ade00f
JB		 2814
2815 if (err)
6c95e2a2 2816 goto free_msg;
41ade00f
JB		 2817
2818 if (cookie.error)
2819 goto nla_put_failure;
2820
2821 genlmsg_end(msg, hdr);
4c476991 2822 return genlmsg_reply(msg, info);
41ade00f
JB		 2823
2824 nla_put_failure:
2825 err = -ENOBUFS;
6c95e2a2 2826 free_msg:
41ade00f 2827 nlmsg_free(msg);
41ade00f
JB		 2828 return err;
2829}
2830
2831static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2832{
4c476991 2833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2834 struct key_parse key;
41ade00f 2835 int err;
4c476991 2836 struct net_device *dev = info->user_ptr[1];
41ade00f 2837
b9454e83
JB		 2838 err = nl80211_parse_key(info, &key);
2839 if (err)
2840 return err;
41ade00f 2841
b9454e83 2842 if (key.idx < 0)
41ade00f
JB		 2843 return -EINVAL;
2844
b9454e83
JB		 2845 /* only support setting default key */
2846 if (!key.def && !key.defmgmt)
41ade00f
JB		 2847 return -EINVAL;
2848
dbd2fd65 2849 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2850
dbd2fd65
JB		 2851 if (key.def) {
2852 if (!rdev->ops->set_default_key) {
2853 err = -EOPNOTSUPP;
2854 goto out;
2855 }
41ade00f 2856
dbd2fd65
JB		 2857 err = nl80211_key_allowed(dev->ieee80211_ptr);
2858 if (err)
2859 goto out;
2860
e35e4d28 2861 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2862 key.def_uni, key.def_multi);
2863
2864 if (err)
2865 goto out;
fffd0934 2866
3d23e349 2867#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2868 dev->ieee80211_ptr->wext.default_key = key.idx;
2869#endif
2870 } else {
2871 if (key.def_uni || !key.def_multi) {
2872 err = -EINVAL;
2873 goto out;
2874 }
2875
2876 if (!rdev->ops->set_default_mgmt_key) {
2877 err = -EOPNOTSUPP;
2878 goto out;
2879 }
2880
2881 err = nl80211_key_allowed(dev->ieee80211_ptr);
2882 if (err)
2883 goto out;
2884
e35e4d28 2885 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2886 if (err)
2887 goto out;
2888
2889#ifdef CONFIG_CFG80211_WEXT
2890 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2891#endif
dbd2fd65
JB		 2892 }
2893
2894 out:
fffd0934 2895 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2896
41ade00f
JB		 2897 return err;
2898}
2899
2900static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2901{
4c476991 2902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2903 int err;
4c476991 2904 struct net_device *dev = info->user_ptr[1];
b9454e83 2905 struct key_parse key;
e31b8213 2906 const u8 *mac_addr = NULL;
41ade00f 2907
b9454e83
JB		 2908 err = nl80211_parse_key(info, &key);
2909 if (err)
2910 return err;
41ade00f 2911
b9454e83 2912 if (!key.p.key)
41ade00f
JB		 2913 return -EINVAL;
2914
41ade00f
JB		 2915 if (info->attrs[NL80211_ATTR_MAC])
2916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2917
e31b8213
JB		 2918 if (key.type == -1) {
2919 if (mac_addr)
2920 key.type = NL80211_KEYTYPE_PAIRWISE;
2921 else
2922 key.type = NL80211_KEYTYPE_GROUP;
2923 }
2924
2925 /* for now */
2926 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2927 key.type != NL80211_KEYTYPE_GROUP)
2928 return -EINVAL;
2929
4c476991
JB		 2930 if (!rdev->ops->add_key)
2931 return -EOPNOTSUPP;
25e47c18 2932
e31b8213
JB		 2933 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2934 key.type == NL80211_KEYTYPE_PAIRWISE,
2935 mac_addr))
4c476991 2936 return -EINVAL;
41ade00f 2937
fffd0934
JB		 2938 wdev_lock(dev->ieee80211_ptr);
2939 err = nl80211_key_allowed(dev->ieee80211_ptr);
2940 if (!err)
e35e4d28
HG		 2941 err = rdev_add_key(rdev, dev, key.idx,
2942 key.type == NL80211_KEYTYPE_PAIRWISE,
2943 mac_addr, &key.p);
fffd0934 2944 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2945
41ade00f
JB		 2946 return err;
2947}
2948
2949static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2950{
4c476991 2951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2952 int err;
4c476991 2953 struct net_device *dev = info->user_ptr[1];
41ade00f 2954 u8 *mac_addr = NULL;
b9454e83 2955 struct key_parse key;
41ade00f 2956
b9454e83
JB		 2957 err = nl80211_parse_key(info, &key);
2958 if (err)
2959 return err;
41ade00f
JB		 2960
2961 if (info->attrs[NL80211_ATTR_MAC])
2962 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2963
e31b8213
JB		 2964 if (key.type == -1) {
2965 if (mac_addr)
2966 key.type = NL80211_KEYTYPE_PAIRWISE;
2967 else
2968 key.type = NL80211_KEYTYPE_GROUP;
2969 }
2970
2971 /* for now */
2972 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2973 key.type != NL80211_KEYTYPE_GROUP)
2974 return -EINVAL;
2975
4c476991
JB		 2976 if (!rdev->ops->del_key)
2977 return -EOPNOTSUPP;
41ade00f 2978
fffd0934
JB		 2979 wdev_lock(dev->ieee80211_ptr);
2980 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2981
2982 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2983 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2984 err = -ENOENT;
2985
fffd0934 2986 if (!err)
e35e4d28
HG		 2987 err = rdev_del_key(rdev, dev, key.idx,
2988 key.type == NL80211_KEYTYPE_PAIRWISE,
2989 mac_addr);
41ade00f 2990
3d23e349 2991#ifdef CONFIG_CFG80211_WEXT
08645126 2992 if (!err) {
b9454e83 2993 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2994 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2995 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2996 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2997 }
2998#endif
fffd0934 2999 wdev_unlock(dev->ieee80211_ptr);
08645126 3000
41ade00f
JB		 3001 return err;
3002}
3003
77765eaf
VT		 3004/* This function returns an error or the number of nested attributes */
3005static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3006{
3007 struct nlattr *attr;
3008 int n_entries = 0, tmp;
3009
3010 nla_for_each_nested(attr, nl_attr, tmp) {
3011 if (nla_len(attr) != ETH_ALEN)
3012 return -EINVAL;
3013
3014 n_entries++;
3015 }
3016
3017 return n_entries;
3018}
3019
3020/*
3021 * This function parses ACL information and allocates memory for ACL data.
3022 * On successful return, the calling function is responsible to free the
3023 * ACL buffer returned by this function.
3024 */
3025static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3026 struct genl_info *info)
3027{
3028 enum nl80211_acl_policy acl_policy;
3029 struct nlattr *attr;
3030 struct cfg80211_acl_data *acl;
3031 int i = 0, n_entries, tmp;
3032
3033 if (!wiphy->max_acl_mac_addrs)
3034 return ERR_PTR(-EOPNOTSUPP);
3035
3036 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3037 return ERR_PTR(-EINVAL);
3038
3039 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3040 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3041 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3042 return ERR_PTR(-EINVAL);
3043
3044 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3045 return ERR_PTR(-EINVAL);
3046
3047 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3048 if (n_entries < 0)
3049 return ERR_PTR(n_entries);
3050
3051 if (n_entries > wiphy->max_acl_mac_addrs)
3052 return ERR_PTR(-ENOTSUPP);
3053
3054 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3055 GFP_KERNEL);
3056 if (!acl)
3057 return ERR_PTR(-ENOMEM);
3058
3059 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3060 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3061 i++;
3062 }
3063
3064 acl->n_acl_entries = n_entries;
3065 acl->acl_policy = acl_policy;
3066
3067 return acl;
3068}
3069
3070static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3071{
3072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3073 struct net_device *dev = info->user_ptr[1];
3074 struct cfg80211_acl_data *acl;
3075 int err;
3076
3077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3079 return -EOPNOTSUPP;
3080
3081 if (!dev->ieee80211_ptr->beacon_interval)
3082 return -EINVAL;
3083
3084 acl = parse_acl_data(&rdev->wiphy, info);
3085 if (IS_ERR(acl))
3086 return PTR_ERR(acl);
3087
3088 err = rdev_set_mac_acl(rdev, dev, acl);
3089
3090 kfree(acl);
3091
3092 return err;
3093}
3094
a1193be8 3095static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3096 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3097{
8860020e 3098 bool haveinfo = false;
ed1b6cc7 3099
a1193be8
SW		 3100 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3101 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3102 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3103 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3104 return -EINVAL;
3105
8860020e 3106 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3107
a1193be8
SW		 3108 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3109 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3110 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3111 if (!bcn->head_len)
3112 return -EINVAL;
3113 haveinfo = true;
ed1b6cc7
JB		 3114 }
3115
a1193be8
SW		 3116 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3117 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3118 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3119 haveinfo = true;
ed1b6cc7
JB		 3120 }
3121
4c476991
JB		 3122 if (!haveinfo)
3123 return -EINVAL;
3b85875a 3124
a1193be8
SW		 3125 if (attrs[NL80211_ATTR_IE]) {
3126 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3127 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3128 }
3129
a1193be8 3130 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3131 bcn->proberesp_ies =
a1193be8 3132 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3133 bcn->proberesp_ies_len =
a1193be8 3134 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3135 }
3136
a1193be8 3137 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3138 bcn->assocresp_ies =
a1193be8 3139 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3140 bcn->assocresp_ies_len =
a1193be8 3141 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3142 }
3143
a1193be8
SW		 3144 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3145 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3146 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3147 }
3148
8860020e
JB		 3149 return 0;
3150}
3151
46c1dd0c
FF		 3152static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3153 struct cfg80211_ap_settings *params)
3154{
3155 struct wireless_dev *wdev;
3156 bool ret = false;
3157
89a54e48 3158 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3159 if (wdev->iftype != NL80211_IFTYPE_AP &&
3160 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3161 continue;
3162
683b6d3b 3163 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3164 continue;
3165
683b6d3b 3166 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3167 ret = true;
3168 break;
3169 }
3170
46c1dd0c
FF		 3171 return ret;
3172}
3173
e39e5b5e
JM		 3174static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3175 enum nl80211_auth_type auth_type,
3176 enum nl80211_commands cmd)
3177{
3178 if (auth_type > NL80211_AUTHTYPE_MAX)
3179 return false;
3180
3181 switch (cmd) {
3182 case NL80211_CMD_AUTHENTICATE:
3183 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3184 auth_type == NL80211_AUTHTYPE_SAE)
3185 return false;
3186 return true;
3187 case NL80211_CMD_CONNECT:
3188 case NL80211_CMD_START_AP:
3189 /* SAE not supported yet */
3190 if (auth_type == NL80211_AUTHTYPE_SAE)
3191 return false;
3192 return true;
3193 default:
3194 return false;
3195 }
3196}
3197
8860020e
JB		 3198static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3199{
3200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3201 struct net_device *dev = info->user_ptr[1];
3202 struct wireless_dev *wdev = dev->ieee80211_ptr;
3203 struct cfg80211_ap_settings params;
3204 int err;
3205
3206 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3207 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3208 return -EOPNOTSUPP;
3209
3210 if (!rdev->ops->start_ap)
3211 return -EOPNOTSUPP;
3212
3213 if (wdev->beacon_interval)
3214 return -EALREADY;
3215
3216 memset(&params, 0, sizeof(params));
3217
3218 /* these are required for START_AP */
3219 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3220 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3221 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3222 return -EINVAL;
3223
a1193be8 3224 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3225 if (err)
3226 return err;
3227
3228 params.beacon_interval =
3229 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3230 params.dtim_period =
3231 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3232
3233 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3234 if (err)
3235 return err;
3236
3237 /*
3238 * In theory, some of these attributes should be required here
3239 * but since they were not used when the command was originally
3240 * added, keep them optional for old user space programs to let
3241 * them continue to work with drivers that do not need the
3242 * additional information -- drivers must check!
3243 */
3244 if (info->attrs[NL80211_ATTR_SSID]) {
3245 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3246 params.ssid_len =
3247 nla_len(info->attrs[NL80211_ATTR_SSID]);
3248 if (params.ssid_len == 0 ||
3249 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3250 return -EINVAL;
3251 }
3252
3253 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3254 params.hidden_ssid = nla_get_u32(
3255 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3256 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3257 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3258 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3259 return -EINVAL;
3260 }
3261
3262 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3263
3264 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3265 params.auth_type = nla_get_u32(
3266 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3267 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3268 NL80211_CMD_START_AP))
8860020e
JB		 3269 return -EINVAL;
3270 } else
3271 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3272
3273 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3274 NL80211_MAX_NR_CIPHER_SUITES);
3275 if (err)
3276 return err;
3277
1b658f11
VT		 3278 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3279 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3280 return -EOPNOTSUPP;
3281 params.inactivity_timeout = nla_get_u16(
3282 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3283 }
3284
53cabad7
JB		 3285 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3287 return -EINVAL;
3288 params.p2p_ctwindow =
3289 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3290 if (params.p2p_ctwindow > 127)
3291 return -EINVAL;
3292 if (params.p2p_ctwindow != 0 &&
3293 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3294 return -EINVAL;
3295 }
3296
3297 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3298 u8 tmp;
3299
3300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3301 return -EINVAL;
3302 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3303 if (tmp > 1)
3304 return -EINVAL;
3305 params.p2p_opp_ps = tmp;
3306 if (params.p2p_opp_ps != 0 &&
3307 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3308 return -EINVAL;
3309 }
3310
aa430da4 3311 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3312 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3313 if (err)
3314 return err;
3315 } else if (wdev->preset_chandef.chan) {
3316 params.chandef = wdev->preset_chandef;
46c1dd0c 3317 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3318 return -EINVAL;
3319
174e0cd2
IP		 3320 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3321 wdev->iftype))
aa430da4
JB		 3322 return -EINVAL;
3323
77765eaf
VT		 3324 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3325 params.acl = parse_acl_data(&rdev->wiphy, info);
3326 if (IS_ERR(params.acl))
3327 return PTR_ERR(params.acl);
3328 }
3329
c56589ed 3330 wdev_lock(wdev);
e35e4d28 3331 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3332 if (!err) {
683b6d3b 3333 wdev->preset_chandef = params.chandef;
8860020e 3334 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3335 wdev->chandef = params.chandef;
06e191e2
AQ		 3336 wdev->ssid_len = params.ssid_len;
3337 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3338 }
c56589ed 3339 wdev_unlock(wdev);
77765eaf
VT		 3340
3341 kfree(params.acl);
3342
56d1893d 3343 return err;
ed1b6cc7
JB		 3344}
3345
8860020e
JB		 3346static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3347{
3348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3349 struct net_device *dev = info->user_ptr[1];
3350 struct wireless_dev *wdev = dev->ieee80211_ptr;
3351 struct cfg80211_beacon_data params;
3352 int err;
3353
3354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3355 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3356 return -EOPNOTSUPP;
3357
3358 if (!rdev->ops->change_beacon)
3359 return -EOPNOTSUPP;
3360
3361 if (!wdev->beacon_interval)
3362 return -EINVAL;
3363
a1193be8 3364 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3365 if (err)
3366 return err;
3367
c56589ed
SW		 3368 wdev_lock(wdev);
3369 err = rdev_change_beacon(rdev, dev, &params);
3370 wdev_unlock(wdev);
3371
3372 return err;
8860020e
JB		 3373}
3374
3375static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3376{
4c476991
JB		 3377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3378 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3379
7c8d5e03 3380 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3381}
3382
5727ef1b
JB		 3383static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3384 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3385 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3386 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3387 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3388 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3389 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3390};
3391
eccb8e8f 3392static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3393 enum nl80211_iftype iftype,
eccb8e8f 3394 struct station_parameters *params)
5727ef1b
JB		 3395{
3396 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3397 struct nlattr *nla;
5727ef1b
JB		 3398 int flag;
3399
eccb8e8f
JB		 3400 /*
3401 * Try parsing the new attribute first so userspace
3402 * can specify both for older kernels.
3403 */
3404 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3405 if (nla) {
3406 struct nl80211_sta_flag_update *sta_flags;
3407
3408 sta_flags = nla_data(nla);
3409 params->sta_flags_mask = sta_flags->mask;
3410 params->sta_flags_set = sta_flags->set;
77ee7c89 3411 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3412 if ((params->sta_flags_mask |
3413 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3414 return -EINVAL;
3415 return 0;
3416 }
3417
3418 /* if present, parse the old attribute */
5727ef1b 3419
eccb8e8f 3420 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3421 if (!nla)
3422 return 0;
3423
3424 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3425 nla, sta_flags_policy))
3426 return -EINVAL;
3427
bdd3ae3d
JB		 3428 /*
3429 * Only allow certain flags for interface types so that
3430 * other attributes are silently ignored. Remember that
3431 * this is backward compatibility code with old userspace
3432 * and shouldn't be hit in other cases anyway.
3433 */
3434 switch (iftype) {
3435 case NL80211_IFTYPE_AP:
3436 case NL80211_IFTYPE_AP_VLAN:
3437 case NL80211_IFTYPE_P2P_GO:
3438 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3439 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3440 BIT(NL80211_STA_FLAG_WME) |
3441 BIT(NL80211_STA_FLAG_MFP);
3442 break;
3443 case NL80211_IFTYPE_P2P_CLIENT:
3444 case NL80211_IFTYPE_STATION:
3445 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3446 BIT(NL80211_STA_FLAG_TDLS_PEER);
3447 break;
3448 case NL80211_IFTYPE_MESH_POINT:
3449 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3450 BIT(NL80211_STA_FLAG_MFP) |
3451 BIT(NL80211_STA_FLAG_AUTHORIZED);
3452 default:
3453 return -EINVAL;
3454 }
5727ef1b 3455
3383b5a6
JB		 3456 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3457 if (flags[flag]) {
eccb8e8f 3458 params->sta_flags_set |= (1<<flag);
5727ef1b 3459
3383b5a6
JB		 3460 /* no longer support new API additions in old API */
3461 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3462 return -EINVAL;
3463 }
3464 }
3465
5727ef1b
JB		 3466 return 0;
3467}
3468
c8dcfd8a
FF		 3469static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3470 int attr)
3471{
3472 struct nlattr *rate;
8eb41c8d
VK		 3473 u32 bitrate;
3474 u16 bitrate_compat;
c8dcfd8a
FF		 3475
3476 rate = nla_nest_start(msg, attr);
3477 if (!rate)
db9c64cf 3478 return false;
c8dcfd8a
FF		 3479
3480 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3481 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3482 /* report 16-bit bitrate only if we can */
3483 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3484 if (bitrate > 0 &&
3485 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3486 return false;
3487 if (bitrate_compat > 0 &&
3488 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3489 return false;
3490
3491 if (info->flags & RATE_INFO_FLAGS_MCS) {
3492 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3493 return false;
3494 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3495 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3496 return false;
3497 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3498 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3499 return false;
3500 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3501 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3502 return false;
3503 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3504 return false;
3505 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3506 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3507 return false;
3508 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3509 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3510 return false;
3511 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3512 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3513 return false;
3514 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3515 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3516 return false;
3517 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3518 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3519 return false;
3520 }
c8dcfd8a
FF		 3521
3522 nla_nest_end(msg, rate);
3523 return true;
c8dcfd8a
FF		 3524}
3525
119363c7
FF		 3526static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3527 int id)
3528{
3529 void *attr;
3530 int i = 0;
3531
3532 if (!mask)
3533 return true;
3534
3535 attr = nla_nest_start(msg, id);
3536 if (!attr)
3537 return false;
3538
3539 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3540 if (!(mask & BIT(i)))
3541 continue;
3542
3543 if (nla_put_u8(msg, i, signal[i]))
3544 return false;
3545 }
3546
3547 nla_nest_end(msg, attr);
3548
3549 return true;
3550}
3551
15e47304 3552static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3553 int flags,
3554 struct cfg80211_registered_device *rdev,
3555 struct net_device *dev,
98b62183 3556 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3557{
3558 void *hdr;
f4263c98 3559 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3560
15e47304 3561 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3562 if (!hdr)
3563 return -1;
3564
9360ffd1
DM		 3565 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3566 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3567 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3568 goto nla_put_failure;
f5ea9120 3569
2ec600d6
LCC		 3570 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3571 if (!sinfoattr)
fd5b74dc 3572 goto nla_put_failure;
9360ffd1
DM		 3573 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3574 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3575 sinfo->connected_time))
3576 goto nla_put_failure;
3577 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3578 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3579 sinfo->inactive_time))
3580 goto nla_put_failure;
42745e03
VK		 3581 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3582 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3583 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3584 (u32)sinfo->rx_bytes))
9360ffd1 3585 goto nla_put_failure;
42745e03 3586 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3587 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3588 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3589 (u32)sinfo->tx_bytes))
3590 goto nla_put_failure;
3591 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3592 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3593 sinfo->rx_bytes))
3594 goto nla_put_failure;
3595 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3596 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3597 sinfo->tx_bytes))
3598 goto nla_put_failure;
3599 if ((sinfo->filled & STATION_INFO_LLID) &&
3600 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3601 goto nla_put_failure;
3602 if ((sinfo->filled & STATION_INFO_PLID) &&
3603 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3604 goto nla_put_failure;
3605 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3606 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3607 sinfo->plink_state))
3608 goto nla_put_failure;
66266b3a
JL		 3609 switch (rdev->wiphy.signal_type) {
3610 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3611 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3612 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3613 sinfo->signal))
3614 goto nla_put_failure;
3615 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3616 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3617 sinfo->signal_avg))
3618 goto nla_put_failure;
66266b3a
JL		 3619 break;
3620 default:
3621 break;
3622 }
119363c7
FF		 3623 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3624 if (!nl80211_put_signal(msg, sinfo->chains,
3625 sinfo->chain_signal,
3626 NL80211_STA_INFO_CHAIN_SIGNAL))
3627 goto nla_put_failure;
3628 }
3629 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3630 if (!nl80211_put_signal(msg, sinfo->chains,
3631 sinfo->chain_signal_avg,
3632 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3633 goto nla_put_failure;
3634 }
420e7fab 3635 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3636 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3637 NL80211_STA_INFO_TX_BITRATE))
3638 goto nla_put_failure;
3639 }
3640 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3641 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3642 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3643 goto nla_put_failure;
420e7fab 3644 }
9360ffd1
DM		 3645 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3646 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3647 sinfo->rx_packets))
3648 goto nla_put_failure;
3649 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3650 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3651 sinfo->tx_packets))
3652 goto nla_put_failure;
3653 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3654 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3655 sinfo->tx_retries))
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3658 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3659 sinfo->tx_failed))
3660 goto nla_put_failure;
867d849f
AQ		 3661 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3662 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3663 sinfo->expected_throughput))
3664 goto nla_put_failure;
9360ffd1
DM		 3665 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3666 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3667 sinfo->beacon_loss_count))
3668 goto nla_put_failure;
3b1c5a53
MP		 3669 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3670 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3671 sinfo->local_pm))
3672 goto nla_put_failure;
3673 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3674 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3675 sinfo->peer_pm))
3676 goto nla_put_failure;
3677 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3678 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3679 sinfo->nonpeer_pm))
3680 goto nla_put_failure;
f4263c98
PS		 3681 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3682 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3683 if (!bss_param)
3684 goto nla_put_failure;
3685
9360ffd1
DM		 3686 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3687 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3688 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3689 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3690 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3691 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3692 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3693 sinfo->bss_param.dtim_period) ||
3694 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3695 sinfo->bss_param.beacon_interval))
3696 goto nla_put_failure;
f4263c98
PS		 3697
3698 nla_nest_end(msg, bss_param);
3699 }
9360ffd1
DM		 3700 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3701 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3702 sizeof(struct nl80211_sta_flag_update),
3703 &sinfo->sta_flags))
3704 goto nla_put_failure;
7eab0f64
JL		 3705 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3706 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3707 sinfo->t_offset))
3708 goto nla_put_failure;
2ec600d6 3709 nla_nest_end(msg, sinfoattr);
fd5b74dc 3710
9360ffd1
DM		 3711 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3712 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3713 sinfo->assoc_req_ies))
3714 goto nla_put_failure;
50d3dfb7 3715
fd5b74dc
JB		 3716 return genlmsg_end(msg, hdr);
3717
3718 nla_put_failure:
bc3ed28c
TG		 3719 genlmsg_cancel(msg, hdr);
3720 return -EMSGSIZE;
fd5b74dc
JB		 3721}
3722
2ec600d6 3723static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3724 struct netlink_callback *cb)
2ec600d6 3725{
2ec600d6 3726 struct station_info sinfo;
1b8ec87a 3727 struct cfg80211_registered_device *rdev;
97990a06 3728 struct wireless_dev *wdev;
2ec600d6 3729 u8 mac_addr[ETH_ALEN];
97990a06 3730 int sta_idx = cb->args[2];
2ec600d6 3731 int err;
2ec600d6 3732
1b8ec87a 3733 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3734 if (err)
3735 return err;
bba95fef 3736
97990a06
JB		 3737 if (!wdev->netdev) {
3738 err = -EINVAL;
3739 goto out_err;
3740 }
3741
1b8ec87a 3742 if (!rdev->ops->dump_station) {
eec60b03 3743 err = -EOPNOTSUPP;
bba95fef
JB		 3744 goto out_err;
3745 }
3746
bba95fef 3747 while (1) {
f612cedf 3748 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3749 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3750 mac_addr, &sinfo);
bba95fef
JB		 3751 if (err == -ENOENT)
3752 break;
3753 if (err)
3b85875a 3754 goto out_err;
bba95fef
JB		 3755
3756 if (nl80211_send_station(skb,
15e47304 3757 NETLINK_CB(cb->skb).portid,
bba95fef 3758 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3759 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3760 &sinfo) < 0)
3761 goto out;
3762
3763 sta_idx++;
3764 }
3765
3766
3767 out:
97990a06 3768 cb->args[2] = sta_idx;
bba95fef 3769 err = skb->len;
bba95fef 3770 out_err:
1b8ec87a 3771 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3772
3773 return err;
2ec600d6 3774}
fd5b74dc 3775
5727ef1b
JB		 3776static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3777{
4c476991
JB		 3778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3779 struct net_device *dev = info->user_ptr[1];
2ec600d6 3780 struct station_info sinfo;
fd5b74dc
JB		 3781 struct sk_buff *msg;
3782 u8 *mac_addr = NULL;
4c476991 3783 int err;
fd5b74dc 3784
2ec600d6 3785 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3786
3787 if (!info->attrs[NL80211_ATTR_MAC])
3788 return -EINVAL;
3789
3790 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3791
4c476991
JB		 3792 if (!rdev->ops->get_station)
3793 return -EOPNOTSUPP;
3b85875a 3794
e35e4d28 3795 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3796 if (err)
4c476991 3797 return err;
2ec600d6 3798
fd2120ca 3799 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3800 if (!msg)
4c476991 3801 return -ENOMEM;
fd5b74dc 3802
15e47304 3803 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3804 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3805 nlmsg_free(msg);
3806 return -ENOBUFS;
3807 }
3b85875a 3808
4c476991 3809 return genlmsg_reply(msg, info);
5727ef1b
JB		 3810}
3811
77ee7c89
JB		 3812int cfg80211_check_station_change(struct wiphy *wiphy,
3813 struct station_parameters *params,
3814 enum cfg80211_station_type statype)
3815{
3816 if (params->listen_interval != -1)
3817 return -EINVAL;
3818 if (params->aid)
3819 return -EINVAL;
3820
3821 /* When you run into this, adjust the code below for the new flag */
3822 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3823
3824 switch (statype) {
eef941e6
TP		 3825 case CFG80211_STA_MESH_PEER_KERNEL:
3826 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3827 /*
3828 * No ignoring the TDLS flag here -- the userspace mesh
3829 * code doesn't have the bug of including TDLS in the
3830 * mask everywhere.
3831 */
3832 if (params->sta_flags_mask &
3833 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3834 BIT(NL80211_STA_FLAG_MFP) |
3835 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3836 return -EINVAL;
3837 break;
3838 case CFG80211_STA_TDLS_PEER_SETUP:
3839 case CFG80211_STA_TDLS_PEER_ACTIVE:
3840 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3841 return -EINVAL;
3842 /* ignore since it can't change */
3843 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3844 break;
3845 default:
3846 /* disallow mesh-specific things */
3847 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3848 return -EINVAL;
3849 if (params->local_pm)
3850 return -EINVAL;
3851 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3852 return -EINVAL;
3853 }
3854
3855 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3856 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3857 /* TDLS can't be set, ... */
3858 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3859 return -EINVAL;
3860 /*
3861 * ... but don't bother the driver with it. This works around
3862 * a hostapd/wpa_supplicant issue -- it always includes the
3863 * TLDS_PEER flag in the mask even for AP mode.
3864 */
3865 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3866 }
3867
3868 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3869 /* reject other things that can't change */
3870 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3871 return -EINVAL;
3872 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3873 return -EINVAL;
3874 if (params->supported_rates)
3875 return -EINVAL;
3876 if (params->ext_capab || params->ht_capa || params->vht_capa)
3877 return -EINVAL;
3878 }
3879
3880 if (statype != CFG80211_STA_AP_CLIENT) {
3881 if (params->vlan)
3882 return -EINVAL;
3883 }
3884
3885 switch (statype) {
3886 case CFG80211_STA_AP_MLME_CLIENT:
3887 /* Use this only for authorizing/unauthorizing a station */
3888 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3889 return -EOPNOTSUPP;
3890 break;
3891 case CFG80211_STA_AP_CLIENT:
3892 /* accept only the listed bits */
3893 if (params->sta_flags_mask &
3894 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3895 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3896 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3897 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3898 BIT(NL80211_STA_FLAG_WME) |
3899 BIT(NL80211_STA_FLAG_MFP)))
3900 return -EINVAL;
3901
3902 /* but authenticated/associated only if driver handles it */
3903 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3904 params->sta_flags_mask &
3905 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3906 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3907 return -EINVAL;
3908 break;
3909 case CFG80211_STA_IBSS:
3910 case CFG80211_STA_AP_STA:
3911 /* reject any changes other than AUTHORIZED */
3912 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3913 return -EINVAL;
3914 break;
3915 case CFG80211_STA_TDLS_PEER_SETUP:
3916 /* reject any changes other than AUTHORIZED or WME */
3917 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3918 BIT(NL80211_STA_FLAG_WME)))
3919 return -EINVAL;
3920 /* force (at least) rates when authorizing */
3921 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3922 !params->supported_rates)
3923 return -EINVAL;
3924 break;
3925 case CFG80211_STA_TDLS_PEER_ACTIVE:
3926 /* reject any changes */
3927 return -EINVAL;
eef941e6 3928 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3929 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3930 return -EINVAL;
3931 break;
eef941e6 3932 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3933 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3934 return -EINVAL;
3935 break;
3936 }
3937
3938 return 0;
3939}
3940EXPORT_SYMBOL(cfg80211_check_station_change);
3941
5727ef1b 3942/*
c258d2de 3943 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3944 */
80b99899
JB		 3945static struct net_device *get_vlan(struct genl_info *info,
3946 struct cfg80211_registered_device *rdev)
5727ef1b 3947{
463d0183 3948 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3949 struct net_device *v;
3950 int ret;
3951
3952 if (!vlanattr)
3953 return NULL;
3954
3955 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3956 if (!v)
3957 return ERR_PTR(-ENODEV);
3958
3959 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3960 ret = -EINVAL;
3961 goto error;
5727ef1b 3962 }
80b99899 3963
77ee7c89
JB		 3964 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3965 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3966 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3967 ret = -EINVAL;
3968 goto error;
3969 }
3970
80b99899
JB		 3971 if (!netif_running(v)) {
3972 ret = -ENETDOWN;
3973 goto error;
3974 }
3975
3976 return v;
3977 error:
3978 dev_put(v);
3979 return ERR_PTR(ret);
5727ef1b
JB		 3980}
3981
94e860f1
JB		 3982static const struct nla_policy
3983nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 3984 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3985 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3986};
3987
ff276691
JB		 3988static int nl80211_parse_sta_wme(struct genl_info *info,
3989 struct station_parameters *params)
df881293 3990{
df881293
JM		 3991 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3992 struct nlattr *nla;
3993 int err;
3994
df881293
JM		 3995 /* parse WME attributes if present */
3996 if (!info->attrs[NL80211_ATTR_STA_WME])
3997 return 0;
3998
3999 nla = info->attrs[NL80211_ATTR_STA_WME];
4000 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4001 nl80211_sta_wme_policy);
4002 if (err)
4003 return err;
4004
4005 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4006 params->uapsd_queues = nla_get_u8(
4007 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4008 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4009 return -EINVAL;
4010
4011 if (tb[NL80211_STA_WME_MAX_SP])
4012 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4013
4014 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4015 return -EINVAL;
4016
4017 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4018
4019 return 0;
4020}
4021
c01fc9ad
SD		 4022static int nl80211_parse_sta_channel_info(struct genl_info *info,
4023 struct station_parameters *params)
4024{
4025 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4026 params->supported_channels =
4027 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4028 params->supported_channels_len =
4029 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4030 /*
4031 * Need to include at least one (first channel, number of
4032 * channels) tuple for each subband, and must have proper
4033 * tuples for the rest of the data as well.
4034 */
4035 if (params->supported_channels_len < 2)
4036 return -EINVAL;
4037 if (params->supported_channels_len % 2)
4038 return -EINVAL;
4039 }
4040
4041 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4042 params->supported_oper_classes =
4043 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4044 params->supported_oper_classes_len =
4045 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4046 /*
4047 * The value of the Length field of the Supported Operating
4048 * Classes element is between 2 and 253.
4049 */
4050 if (params->supported_oper_classes_len < 2 ||
4051 params->supported_oper_classes_len > 253)
4052 return -EINVAL;
4053 }
4054 return 0;
4055}
4056
ff276691
JB		 4057static int nl80211_set_station_tdls(struct genl_info *info,
4058 struct station_parameters *params)
4059{
c01fc9ad 4060 int err;
ff276691 4061 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4062 if (info->attrs[NL80211_ATTR_PEER_AID])
4063 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4064 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4065 params->ht_capa =
4066 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4067 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4068 params->vht_capa =
4069 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4070
c01fc9ad
SD		 4071 err = nl80211_parse_sta_channel_info(info, params);
4072 if (err)
4073 return err;
4074
ff276691
JB		 4075 return nl80211_parse_sta_wme(info, params);
4076}
4077
5727ef1b
JB		 4078static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4079{
4c476991 4080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4081 struct net_device *dev = info->user_ptr[1];
5727ef1b 4082 struct station_parameters params;
77ee7c89
JB		 4083 u8 *mac_addr;
4084 int err;
5727ef1b
JB		 4085
4086 memset(&params, 0, sizeof(params));
4087
4088 params.listen_interval = -1;
4089
77ee7c89
JB		 4090 if (!rdev->ops->change_station)
4091 return -EOPNOTSUPP;
4092
5727ef1b
JB		 4093 if (info->attrs[NL80211_ATTR_STA_AID])
4094 return -EINVAL;
4095
4096 if (!info->attrs[NL80211_ATTR_MAC])
4097 return -EINVAL;
4098
4099 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4100
4101 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4102 params.supported_rates =
4103 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4104 params.supported_rates_len =
4105 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4106 }
4107
9d62a986
JM		 4108 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4109 params.capability =
4110 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4111 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4112 }
4113
4114 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4115 params.ext_capab =
4116 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4117 params.ext_capab_len =
4118 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4119 }
4120
df881293 4121 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4122 return -EINVAL;
36aedc90 4123
bdd3ae3d 4124 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4125 return -EINVAL;
4126
f8bacc21 4127 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4128 params.plink_action =
f8bacc21
JB		 4129 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4130 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4131 return -EINVAL;
4132 }
2ec600d6 4133
f8bacc21 4134 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4135 params.plink_state =
f8bacc21
JB		 4136 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4137 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4138 return -EINVAL;
4139 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4140 }
9c3990aa 4141
3b1c5a53
MP		 4142 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4143 enum nl80211_mesh_power_mode pm = nla_get_u32(
4144 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4145
4146 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4147 pm > NL80211_MESH_POWER_MAX)
4148 return -EINVAL;
4149
4150 params.local_pm = pm;
4151 }
4152
77ee7c89
JB		 4153 /* Include parameters for TDLS peer (will check later) */
4154 err = nl80211_set_station_tdls(info, &params);
4155 if (err)
4156 return err;
4157
4158 params.vlan = get_vlan(info, rdev);
4159 if (IS_ERR(params.vlan))
4160 return PTR_ERR(params.vlan);
4161
a97f4424
JB		 4162 switch (dev->ieee80211_ptr->iftype) {
4163 case NL80211_IFTYPE_AP:
4164 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4165 case NL80211_IFTYPE_P2P_GO:
074ac8df 4166 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4167 case NL80211_IFTYPE_STATION:
267335d6 4168 case NL80211_IFTYPE_ADHOC:
a97f4424 4169 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4170 break;
4171 default:
77ee7c89
JB		 4172 err = -EOPNOTSUPP;
4173 goto out_put_vlan;
034d655e
JB		 4174 }
4175
77ee7c89 4176 /* driver will call cfg80211_check_station_change() */
e35e4d28 4177 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4178
77ee7c89 4179 out_put_vlan:
5727ef1b
JB		 4180 if (params.vlan)
4181 dev_put(params.vlan);
3b85875a 4182
5727ef1b
JB		 4183 return err;
4184}
4185
4186static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4187{
4c476991 4188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4189 int err;
4c476991 4190 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4191 struct station_parameters params;
4192 u8 *mac_addr = NULL;
4193
4194 memset(&params, 0, sizeof(params));
4195
984c311b
JB		 4196 if (!rdev->ops->add_station)
4197 return -EOPNOTSUPP;
4198
5727ef1b
JB		 4199 if (!info->attrs[NL80211_ATTR_MAC])
4200 return -EINVAL;
4201
5727ef1b
JB		 4202 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4203 return -EINVAL;
4204
4205 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4206 return -EINVAL;
4207
5e4b6f56
JM		 4208 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4209 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4210 return -EINVAL;
4211
5727ef1b
JB		 4212 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4213 params.supported_rates =
4214 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4215 params.supported_rates_len =
4216 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4217 params.listen_interval =
4218 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4219
3d124ea2 4220 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4221 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4222 else
4223 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4224 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4225 return -EINVAL;
51b50fbe 4226
9d62a986
JM		 4227 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4228 params.capability =
4229 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4230 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4231 }
4232
4233 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4234 params.ext_capab =
4235 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4236 params.ext_capab_len =
4237 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4238 }
4239
36aedc90
JM		 4240 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4241 params.ht_capa =
4242 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4243
f461be3e
MP		 4244 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4245 params.vht_capa =
4246 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4247
60f4a7b1
MK		 4248 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4249 params.opmode_notif_used = true;
4250 params.opmode_notif =
4251 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4252 }
4253
f8bacc21 4254 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4255 params.plink_action =
f8bacc21
JB		 4256 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4257 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4258 return -EINVAL;
4259 }
96b78dff 4260
c01fc9ad
SD		 4261 err = nl80211_parse_sta_channel_info(info, &params);
4262 if (err)
4263 return err;
4264
ff276691
JB		 4265 err = nl80211_parse_sta_wme(info, &params);
4266 if (err)
4267 return err;
bdd90d5e 4268
bdd3ae3d 4269 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4270 return -EINVAL;
4271
77ee7c89
JB		 4272 /* When you run into this, adjust the code below for the new flag */
4273 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4274
bdd90d5e
JB		 4275 switch (dev->ieee80211_ptr->iftype) {
4276 case NL80211_IFTYPE_AP:
4277 case NL80211_IFTYPE_AP_VLAN:
4278 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4279 /* ignore WME attributes if iface/sta is not capable */
4280 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4281 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4282 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4283
bdd90d5e 4284 /* TDLS peers cannot be added */
3d124ea2
JM		 4285 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4286 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4287 return -EINVAL;
bdd90d5e
JB		 4288 /* but don't bother the driver with it */
4289 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4290
d582cffb
JB		 4291 /* allow authenticated/associated only if driver handles it */
4292 if (!(rdev->wiphy.features &
4293 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4294 params.sta_flags_mask &
4295 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4296 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4297 return -EINVAL;
4298
bdd90d5e
JB		 4299 /* must be last in here for error handling */
4300 params.vlan = get_vlan(info, rdev);
4301 if (IS_ERR(params.vlan))
4302 return PTR_ERR(params.vlan);
4303 break;
4304 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4305 /* ignore uAPSD data */
4306 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4307
d582cffb
JB		 4308 /* associated is disallowed */
4309 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4310 return -EINVAL;
bdd90d5e 4311 /* TDLS peers cannot be added */
3d124ea2
JM		 4312 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4313 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4314 return -EINVAL;
4315 break;
4316 case NL80211_IFTYPE_STATION:
93d08f0b 4317 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4318 /* ignore uAPSD data */
4319 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4320
77ee7c89
JB		 4321 /* these are disallowed */
4322 if (params.sta_flags_mask &
4323 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4324 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4325 return -EINVAL;
bdd90d5e
JB		 4326 /* Only TDLS peers can be added */
4327 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4328 return -EINVAL;
4329 /* Can only add if TDLS ... */
4330 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4331 return -EOPNOTSUPP;
4332 /* ... with external setup is supported */
4333 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4334 return -EOPNOTSUPP;
77ee7c89
JB		 4335 /*
4336 * Older wpa_supplicant versions always mark the TDLS peer
4337 * as authorized, but it shouldn't yet be.
4338 */
4339 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4340 break;
4341 default:
4342 return -EOPNOTSUPP;
c75786c9
EP		 4343 }
4344
bdd90d5e 4345 /* be aware of params.vlan when changing code here */
5727ef1b 4346
e35e4d28 4347 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4348
5727ef1b
JB		 4349 if (params.vlan)
4350 dev_put(params.vlan);
5727ef1b
JB		 4351 return err;
4352}
4353
4354static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4355{
4c476991
JB		 4356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4357 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4358 u8 *mac_addr = NULL;
4359
4360 if (info->attrs[NL80211_ATTR_MAC])
4361 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4362
e80cf853 4363 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4366 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4367 return -EINVAL;
5727ef1b 4368
4c476991
JB		 4369 if (!rdev->ops->del_station)
4370 return -EOPNOTSUPP;
3b85875a 4371
e35e4d28 4372 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4373}
4374
15e47304 4375static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4376 int flags, struct net_device *dev,
4377 u8 *dst, u8 *next_hop,
4378 struct mpath_info *pinfo)
4379{
4380 void *hdr;
4381 struct nlattr *pinfoattr;
4382
15e47304 4383 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4384 if (!hdr)
4385 return -1;
4386
9360ffd1
DM		 4387 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4388 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4389 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4390 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4391 goto nla_put_failure;
f5ea9120 4392
2ec600d6
LCC		 4393 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4394 if (!pinfoattr)
4395 goto nla_put_failure;
9360ffd1
DM		 4396 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4397 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4398 pinfo->frame_qlen))
4399 goto nla_put_failure;
4400 if (((pinfo->filled & MPATH_INFO_SN) &&
4401 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4402 ((pinfo->filled & MPATH_INFO_METRIC) &&
4403 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4404 pinfo->metric)) ||
4405 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4406 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4407 pinfo->exptime)) ||
4408 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4409 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4410 pinfo->flags)) ||
4411 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4412 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4413 pinfo->discovery_timeout)) ||
4414 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4415 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4416 pinfo->discovery_retries)))
4417 goto nla_put_failure;
2ec600d6
LCC		 4418
4419 nla_nest_end(msg, pinfoattr);
4420
4421 return genlmsg_end(msg, hdr);
4422
4423 nla_put_failure:
bc3ed28c
TG		 4424 genlmsg_cancel(msg, hdr);
4425 return -EMSGSIZE;
2ec600d6
LCC		 4426}
4427
4428static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4429 struct netlink_callback *cb)
2ec600d6 4430{
2ec600d6 4431 struct mpath_info pinfo;
1b8ec87a 4432 struct cfg80211_registered_device *rdev;
97990a06 4433 struct wireless_dev *wdev;
2ec600d6
LCC		 4434 u8 dst[ETH_ALEN];
4435 u8 next_hop[ETH_ALEN];
97990a06 4436 int path_idx = cb->args[2];
2ec600d6 4437 int err;
2ec600d6 4438
1b8ec87a 4439 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4440 if (err)
4441 return err;
bba95fef 4442
1b8ec87a 4443 if (!rdev->ops->dump_mpath) {
eec60b03 4444 err = -EOPNOTSUPP;
bba95fef
JB		 4445 goto out_err;
4446 }
4447
97990a06 4448 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4449 err = -EOPNOTSUPP;
0448b5fc 4450 goto out_err;
eec60b03
JM		 4451 }
4452
bba95fef 4453 while (1) {
1b8ec87a 4454 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4455 next_hop, &pinfo);
bba95fef 4456 if (err == -ENOENT)
2ec600d6 4457 break;
bba95fef 4458 if (err)
3b85875a 4459 goto out_err;
2ec600d6 4460
15e47304 4461 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4462 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4463 wdev->netdev, dst, next_hop,
bba95fef
JB		 4464 &pinfo) < 0)
4465 goto out;
2ec600d6 4466
bba95fef 4467 path_idx++;
2ec600d6 4468 }
2ec600d6 4469
2ec600d6 4470
bba95fef 4471 out:
97990a06 4472 cb->args[2] = path_idx;
bba95fef 4473 err = skb->len;
bba95fef 4474 out_err:
1b8ec87a 4475 nl80211_finish_wdev_dump(rdev);
bba95fef 4476 return err;
2ec600d6
LCC		 4477}
4478
4479static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4480{
4c476991 4481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4482 int err;
4c476991 4483 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4484 struct mpath_info pinfo;
4485 struct sk_buff *msg;
4486 u8 *dst = NULL;
4487 u8 next_hop[ETH_ALEN];
4488
4489 memset(&pinfo, 0, sizeof(pinfo));
4490
4491 if (!info->attrs[NL80211_ATTR_MAC])
4492 return -EINVAL;
4493
4494 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4495
4c476991
JB		 4496 if (!rdev->ops->get_mpath)
4497 return -EOPNOTSUPP;
2ec600d6 4498
4c476991
JB		 4499 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4500 return -EOPNOTSUPP;
eec60b03 4501
e35e4d28 4502 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4503 if (err)
4c476991 4504 return err;
2ec600d6 4505
fd2120ca 4506 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4507 if (!msg)
4c476991 4508 return -ENOMEM;
2ec600d6 4509
15e47304 4510 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4511 dev, dst, next_hop, &pinfo) < 0) {
4512 nlmsg_free(msg);
4513 return -ENOBUFS;
4514 }
3b85875a 4515
4c476991 4516 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4517}
4518
4519static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4520{
4c476991
JB		 4521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4522 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4523 u8 *dst = NULL;
4524 u8 *next_hop = NULL;
4525
4526 if (!info->attrs[NL80211_ATTR_MAC])
4527 return -EINVAL;
4528
4529 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4530 return -EINVAL;
4531
4532 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4533 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4534
4c476991
JB		 4535 if (!rdev->ops->change_mpath)
4536 return -EOPNOTSUPP;
35a8efe1 4537
4c476991
JB		 4538 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4539 return -EOPNOTSUPP;
2ec600d6 4540
e35e4d28 4541 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4542}
4c476991 4543
2ec600d6
LCC		 4544static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4545{
4c476991
JB		 4546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4547 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4548 u8 *dst = NULL;
4549 u8 *next_hop = NULL;
4550
4551 if (!info->attrs[NL80211_ATTR_MAC])
4552 return -EINVAL;
4553
4554 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4555 return -EINVAL;
4556
4557 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4558 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4559
4c476991
JB		 4560 if (!rdev->ops->add_mpath)
4561 return -EOPNOTSUPP;
35a8efe1 4562
4c476991
JB		 4563 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4564 return -EOPNOTSUPP;
2ec600d6 4565
e35e4d28 4566 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4567}
4568
4569static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4570{
4c476991
JB		 4571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4572 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4573 u8 *dst = NULL;
4574
4575 if (info->attrs[NL80211_ATTR_MAC])
4576 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4577
4c476991
JB		 4578 if (!rdev->ops->del_mpath)
4579 return -EOPNOTSUPP;
3b85875a 4580
e35e4d28 4581 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4582}
4583
9f1ba906
JM		 4584static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4585{
4c476991
JB		 4586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4587 struct net_device *dev = info->user_ptr[1];
c56589ed 4588 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4589 struct bss_parameters params;
c56589ed 4590 int err;
9f1ba906
JM		 4591
4592 memset(&params, 0, sizeof(params));
4593 /* default to not changing parameters */
4594 params.use_cts_prot = -1;
4595 params.use_short_preamble = -1;
4596 params.use_short_slot_time = -1;
fd8aaaf3 4597 params.ap_isolate = -1;
50b12f59 4598 params.ht_opmode = -1;
53cabad7
JB		 4599 params.p2p_ctwindow = -1;
4600 params.p2p_opp_ps = -1;
9f1ba906
JM		 4601
4602 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4603 params.use_cts_prot =
4604 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4605 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4606 params.use_short_preamble =
4607 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4608 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4609 params.use_short_slot_time =
4610 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4611 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4612 params.basic_rates =
4613 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4614 params.basic_rates_len =
4615 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4616 }
fd8aaaf3
FF		 4617 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4618 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4619 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4620 params.ht_opmode =
4621 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4622
53cabad7
JB		 4623 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4624 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4625 return -EINVAL;
4626 params.p2p_ctwindow =
4627 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4628 if (params.p2p_ctwindow < 0)
4629 return -EINVAL;
4630 if (params.p2p_ctwindow != 0 &&
4631 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4632 return -EINVAL;
4633 }
4634
4635 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4636 u8 tmp;
4637
4638 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4639 return -EINVAL;
4640 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4641 if (tmp > 1)
4642 return -EINVAL;
4643 params.p2p_opp_ps = tmp;
4644 if (params.p2p_opp_ps &&
4645 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4646 return -EINVAL;
4647 }
4648
4c476991
JB		 4649 if (!rdev->ops->change_bss)
4650 return -EOPNOTSUPP;
9f1ba906 4651
074ac8df 4652 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4653 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4654 return -EOPNOTSUPP;
3b85875a 4655
c56589ed
SW		 4656 wdev_lock(wdev);
4657 err = rdev_change_bss(rdev, dev, &params);
4658 wdev_unlock(wdev);
4659
4660 return err;
9f1ba906
JM		 4661}
4662
b54452b0 4663static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4664 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4665 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4666 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4667 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4668 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4669 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4670 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4671};
4672
4673static int parse_reg_rule(struct nlattr *tb[],
4674 struct ieee80211_reg_rule *reg_rule)
4675{
4676 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4677 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4678
4679 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4680 return -EINVAL;
4681 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4682 return -EINVAL;
4683 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4684 return -EINVAL;
b0dfd2ea
JD		 4685 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4686 return -EINVAL;
b2e1b302
LR		 4687 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4688 return -EINVAL;
4689
4690 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4691
4692 freq_range->start_freq_khz =
4693 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4694 freq_range->end_freq_khz =
4695 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4696 freq_range->max_bandwidth_khz =
4697 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4698
4699 power_rule->max_eirp =
4700 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4701
4702 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4703 power_rule->max_antenna_gain =
4704 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4705
089027e5
JD		 4706 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4707 reg_rule->dfs_cac_ms =
4708 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4709
b2e1b302
LR		 4710 return 0;
4711}
4712
4713static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4714{
b2e1b302 4715 char *data = NULL;
57b5ce07 4716 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4717
80778f18
LR		 4718 /*
4719 * You should only get this when cfg80211 hasn't yet initialized
4720 * completely when built-in to the kernel right between the time
4721 * window between nl80211_init() and regulatory_init(), if that is
4722 * even possible.
4723 */
458f4f9e 4724 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4725 return -EINPROGRESS;
80778f18 4726
57b5ce07
LR		 4727 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4728 user_reg_hint_type =
4729 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4730 else
4731 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4732
4733 switch (user_reg_hint_type) {
4734 case NL80211_USER_REG_HINT_USER:
4735 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4736 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4737 return -EINVAL;
4738
4739 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4740 return regulatory_hint_user(data, user_reg_hint_type);
4741 case NL80211_USER_REG_HINT_INDOOR:
4742 return regulatory_hint_indoor_user();
57b5ce07
LR		 4743 default:
4744 return -EINVAL;
4745 }
b2e1b302
LR		 4746}
4747
24bdd9f4 4748static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4749 struct genl_info *info)
93da9cc1 4750{
4c476991 4751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4752 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4753 struct wireless_dev *wdev = dev->ieee80211_ptr;
4754 struct mesh_config cur_params;
4755 int err = 0;
93da9cc1 4756 void *hdr;
4757 struct nlattr *pinfoattr;
4758 struct sk_buff *msg;
4759
29cbe68c
JB		 4760 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4761 return -EOPNOTSUPP;
4762
24bdd9f4 4763 if (!rdev->ops->get_mesh_config)
4c476991 4764 return -EOPNOTSUPP;
f3f92586 4765
29cbe68c
JB		 4766 wdev_lock(wdev);
4767 /* If not connected, get default parameters */
4768 if (!wdev->mesh_id_len)
4769 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4770 else
e35e4d28 4771 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4772 wdev_unlock(wdev);
4773
93da9cc1 4774 if (err)
4c476991 4775 return err;
93da9cc1 4776
4777 /* Draw up a netlink message to send back */
fd2120ca 4778 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4779 if (!msg)
4780 return -ENOMEM;
15e47304 4781 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4782 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4783 if (!hdr)
efe1cf0c 4784 goto out;
24bdd9f4 4785 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4786 if (!pinfoattr)
4787 goto nla_put_failure;
9360ffd1
DM		 4788 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4789 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4790 cur_params.dot11MeshRetryTimeout) ||
4791 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4792 cur_params.dot11MeshConfirmTimeout) ||
4793 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4794 cur_params.dot11MeshHoldingTimeout) ||
4795 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4796 cur_params.dot11MeshMaxPeerLinks) ||
4797 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4798 cur_params.dot11MeshMaxRetries) ||
4799 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4800 cur_params.dot11MeshTTL) ||
4801 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4802 cur_params.element_ttl) ||
4803 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4804 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4805 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4806 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4807 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4808 cur_params.dot11MeshHWMPmaxPREQretries) ||
4809 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4810 cur_params.path_refresh_time) ||
4811 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4812 cur_params.min_discovery_timeout) ||
4813 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4814 cur_params.dot11MeshHWMPactivePathTimeout) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4816 cur_params.dot11MeshHWMPpreqMinInterval) ||
4817 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4818 cur_params.dot11MeshHWMPperrMinInterval) ||
4819 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4820 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4821 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4822 cur_params.dot11MeshHWMPRootMode) ||
4823 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4824 cur_params.dot11MeshHWMPRannInterval) ||
4825 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4826 cur_params.dot11MeshGateAnnouncementProtocol) ||
4827 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4828 cur_params.dot11MeshForwarding) ||
4829 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4830 cur_params.rssi_threshold) ||
4831 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4832 cur_params.ht_opmode) ||
4833 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4834 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4835 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4836 cur_params.dot11MeshHWMProotInterval) ||
4837 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4838 cur_params.dot11MeshHWMPconfirmationInterval) ||
4839 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4840 cur_params.power_mode) ||
4841 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4842 cur_params.dot11MeshAwakeWindowDuration) ||
4843 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4844 cur_params.plink_timeout))
9360ffd1 4845 goto nla_put_failure;
93da9cc1 4846 nla_nest_end(msg, pinfoattr);
4847 genlmsg_end(msg, hdr);
4c476991 4848 return genlmsg_reply(msg, info);
93da9cc1 4849
3b85875a 4850 nla_put_failure:
93da9cc1 4851 genlmsg_cancel(msg, hdr);
efe1cf0c 4852 out:
d080e275 4853 nlmsg_free(msg);
4c476991 4854 return -ENOBUFS;
93da9cc1 4855}
4856
b54452b0 4857static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4858 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4859 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4861 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4862 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4863 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4864 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4865 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4866 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4867 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4868 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4869 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4870 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4871 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4872 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4873 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4874 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4875 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4876 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4877 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4878 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4879 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4880 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4881 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4882 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4883 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4884 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4885 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4886};
4887
c80d545d
JC		 4888static const struct nla_policy
4889 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4890 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4891 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4892 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4893 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4894 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4895 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4896 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4897 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4898 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4899};
4900
24bdd9f4 4901static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4902 struct mesh_config *cfg,
4903 u32 *mask_out)
93da9cc1 4904{
93da9cc1 4905 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4906 u32 mask = 0;
93da9cc1 4907
ea54fba2
MP		 4908#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4909do { \
4910 if (tb[attr]) { \
4911 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4912 return -EINVAL; \
4913 cfg->param = fn(tb[attr]); \
4914 mask |= (1 << (attr - 1)); \
4915 } \
4916} while (0)
bd90fdcc
JB		 4917
4918
24bdd9f4 4919 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4920 return -EINVAL;
4921 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4922 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4923 nl80211_meshconf_params_policy))
93da9cc1 4924 return -EINVAL;
4925
93da9cc1 4926 /* This makes sure that there aren't more than 32 mesh config
4927 * parameters (otherwise our bitfield scheme would not work.) */
4928 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4929
4930 /* Fill in the params struct */
ea54fba2 4931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4932 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4933 nla_get_u16);
ea54fba2 4934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4935 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4936 nla_get_u16);
ea54fba2 4937 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4938 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4939 nla_get_u16);
ea54fba2 4940 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4941 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4942 nla_get_u16);
ea54fba2 4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4944 mask, NL80211_MESHCONF_MAX_RETRIES,
4945 nla_get_u8);
ea54fba2 4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4947 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4948 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4949 mask, NL80211_MESHCONF_ELEMENT_TTL,
4950 nla_get_u8);
ea54fba2 4951 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4952 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4953 nla_get_u8);
ea54fba2
MP		 4954 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4955 1, 255, mask,
a4f606ea
CYY		 4956 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4957 nla_get_u32);
ea54fba2 4958 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4959 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4960 nla_get_u8);
ea54fba2 4961 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4962 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4963 nla_get_u32);
ea54fba2 4964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4965 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4966 nla_get_u16);
ea54fba2
MP		 4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4968 1, 65535, mask,
a4f606ea
CYY		 4969 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4970 nla_get_u32);
93da9cc1 4971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4972 1, 65535, mask,
4973 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4974 nla_get_u16);
dca7e943 4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4976 1, 65535, mask,
4977 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4978 nla_get_u16);
93da9cc1 4979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4980 dot11MeshHWMPnetDiameterTraversalTime,
4981 1, 65535, mask,
a4f606ea
CYY		 4982 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4983 nla_get_u16);
ea54fba2
MP		 4984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4985 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4986 nla_get_u8);
4987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4988 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4989 nla_get_u16);
63c5723b 4990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4991 dot11MeshGateAnnouncementProtocol, 0, 1,
4992 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4993 nla_get_u8);
ea54fba2 4994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4995 mask, NL80211_MESHCONF_FORWARDING,
4996 nla_get_u8);
83374fe9 4997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4998 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4999 nla_get_s32);
ea54fba2 5000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5001 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5002 nla_get_u16);
5003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5004 1, 65535, mask,
ac1073a6
CYY		 5005 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5006 nla_get_u32);
ea54fba2 5007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5008 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5009 nla_get_u16);
5010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5011 dot11MeshHWMPconfirmationInterval,
5012 1, 65535, mask,
728b19e5 5013 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5014 nla_get_u16);
3b1c5a53
MP		 5015 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5016 NL80211_MESH_POWER_ACTIVE,
5017 NL80211_MESH_POWER_MAX,
5018 mask, NL80211_MESHCONF_POWER_MODE,
5019 nla_get_u32);
5020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5021 0, 65535, mask,
5022 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5024 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5025 nla_get_u32);
bd90fdcc
JB		 5026 if (mask_out)
5027 *mask_out = mask;
c80d545d 5028
bd90fdcc
JB		 5029 return 0;
5030
5031#undef FILL_IN_MESH_PARAM_IF_SET
5032}
5033
c80d545d
JC		 5034static int nl80211_parse_mesh_setup(struct genl_info *info,
5035 struct mesh_setup *setup)
5036{
bb2798d4 5037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5038 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5039
5040 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5041 return -EINVAL;
5042 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5043 info->attrs[NL80211_ATTR_MESH_SETUP],
5044 nl80211_mesh_setup_params_policy))
5045 return -EINVAL;
5046
d299a1f2
JC		 5047 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5048 setup->sync_method =
5049 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5050 IEEE80211_SYNC_METHOD_VENDOR :
5051 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5052
c80d545d
JC		 5053 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5054 setup->path_sel_proto =
5055 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5056 IEEE80211_PATH_PROTOCOL_VENDOR :
5057 IEEE80211_PATH_PROTOCOL_HWMP;
5058
5059 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5060 setup->path_metric =
5061 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5062 IEEE80211_PATH_METRIC_VENDOR :
5063 IEEE80211_PATH_METRIC_AIRTIME;
5064
581a8b0f
JC		 5065
5066 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5067 struct nlattr *ieattr =
581a8b0f 5068 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5069 if (!is_valid_ie_attr(ieattr))
5070 return -EINVAL;
581a8b0f
JC		 5071 setup->ie = nla_data(ieattr);
5072 setup->ie_len = nla_len(ieattr);
c80d545d 5073 }
bb2798d4
TP		 5074 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5075 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5076 return -EINVAL;
5077 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5078 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5079 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5080 if (setup->is_secure)
5081 setup->user_mpm = true;
c80d545d 5082
6e16d90b
CT		 5083 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5084 if (!setup->user_mpm)
5085 return -EINVAL;
5086 setup->auth_id =
5087 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5088 }
5089
c80d545d
JC		 5090 return 0;
5091}
5092
24bdd9f4 5093static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5094 struct genl_info *info)
bd90fdcc
JB		 5095{
5096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5097 struct net_device *dev = info->user_ptr[1];
29cbe68c 5098 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5099 struct mesh_config cfg;
5100 u32 mask;
5101 int err;
5102
29cbe68c
JB		 5103 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5104 return -EOPNOTSUPP;
5105
24bdd9f4 5106 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5107 return -EOPNOTSUPP;
5108
24bdd9f4 5109 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5110 if (err)
5111 return err;
5112
29cbe68c
JB		 5113 wdev_lock(wdev);
5114 if (!wdev->mesh_id_len)
5115 err = -ENOLINK;
5116
5117 if (!err)
e35e4d28 5118 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5119
5120 wdev_unlock(wdev);
5121
5122 return err;
93da9cc1 5123}
5124
f130347c
LR		 5125static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5126{
458f4f9e 5127 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5128 struct sk_buff *msg;
5129 void *hdr = NULL;
5130 struct nlattr *nl_reg_rules;
5131 unsigned int i;
f130347c
LR		 5132
5133 if (!cfg80211_regdomain)
5fe231e8 5134 return -EINVAL;
f130347c 5135
fd2120ca 5136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5137 if (!msg)
5138 return -ENOBUFS;
f130347c 5139
15e47304 5140 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5141 NL80211_CMD_GET_REG);
5142 if (!hdr)
efe1cf0c 5143 goto put_failure;
f130347c 5144
57b5ce07
LR		 5145 if (reg_last_request_cell_base() &&
5146 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5147 NL80211_USER_REG_HINT_CELL_BASE))
5148 goto nla_put_failure;
5149
458f4f9e
JB		 5150 rcu_read_lock();
5151 regdom = rcu_dereference(cfg80211_regdomain);
5152
5153 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5154 (regdom->dfs_region &&
5155 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5156 goto nla_put_failure_rcu;
5157
f130347c
LR		 5158 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5159 if (!nl_reg_rules)
458f4f9e 5160 goto nla_put_failure_rcu;
f130347c 5161
458f4f9e 5162 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5163 struct nlattr *nl_reg_rule;
5164 const struct ieee80211_reg_rule *reg_rule;
5165 const struct ieee80211_freq_range *freq_range;
5166 const struct ieee80211_power_rule *power_rule;
97524820 5167 unsigned int max_bandwidth_khz;
f130347c 5168
458f4f9e 5169 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5170 freq_range = &reg_rule->freq_range;
5171 power_rule = &reg_rule->power_rule;
5172
5173 nl_reg_rule = nla_nest_start(msg, i);
5174 if (!nl_reg_rule)
458f4f9e 5175 goto nla_put_failure_rcu;
f130347c 5176
97524820
JD		 5177 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5178 if (!max_bandwidth_khz)
5179 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5180 reg_rule);
5181
9360ffd1
DM		 5182 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5183 reg_rule->flags) ||
5184 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5185 freq_range->start_freq_khz) ||
5186 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5187 freq_range->end_freq_khz) ||
5188 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5189 max_bandwidth_khz) ||
9360ffd1
DM		 5190 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5191 power_rule->max_antenna_gain) ||
5192 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5193 power_rule->max_eirp) ||
5194 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5195 reg_rule->dfs_cac_ms))
458f4f9e 5196 goto nla_put_failure_rcu;
f130347c
LR		 5197
5198 nla_nest_end(msg, nl_reg_rule);
5199 }
458f4f9e 5200 rcu_read_unlock();
f130347c
LR		 5201
5202 nla_nest_end(msg, nl_reg_rules);
5203
5204 genlmsg_end(msg, hdr);
5fe231e8 5205 return genlmsg_reply(msg, info);
f130347c 5206
458f4f9e
JB		 5207nla_put_failure_rcu:
5208 rcu_read_unlock();
f130347c
LR		 5209nla_put_failure:
5210 genlmsg_cancel(msg, hdr);
efe1cf0c 5211put_failure:
d080e275 5212 nlmsg_free(msg);
5fe231e8 5213 return -EMSGSIZE;
f130347c
LR		 5214}
5215
b2e1b302
LR		 5216static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5217{
5218 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5219 struct nlattr *nl_reg_rule;
5220 char *alpha2 = NULL;
5221 int rem_reg_rules = 0, r = 0;
5222 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5223 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5224 struct ieee80211_regdomain *rd = NULL;
5225
5226 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5227 return -EINVAL;
5228
5229 if (!info->attrs[NL80211_ATTR_REG_RULES])
5230 return -EINVAL;
5231
5232 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5233
8b60b078
LR		 5234 if (info->attrs[NL80211_ATTR_DFS_REGION])
5235 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5236
b2e1b302 5237 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5238 rem_reg_rules) {
b2e1b302
LR		 5239 num_rules++;
5240 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5241 return -EINVAL;
b2e1b302
LR		 5242 }
5243
e438768f
LR		 5244 if (!reg_is_valid_request(alpha2))
5245 return -EINVAL;
5246
b2e1b302 5247 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5248 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5249
5250 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5251 if (!rd)
5252 return -ENOMEM;
b2e1b302
LR		 5253
5254 rd->n_reg_rules = num_rules;
5255 rd->alpha2[0] = alpha2[0];
5256 rd->alpha2[1] = alpha2[1];
5257
8b60b078
LR		 5258 /*
5259 * Disable DFS master mode if the DFS region was
5260 * not supported or known on this kernel.
5261 */
5262 if (reg_supported_dfs_region(dfs_region))
5263 rd->dfs_region = dfs_region;
5264
b2e1b302 5265 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5266 rem_reg_rules) {
ae811e21
JB		 5267 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5268 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5269 reg_rule_policy);
5270 if (r)
5271 goto bad_reg;
b2e1b302
LR		 5272 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5273 if (r)
5274 goto bad_reg;
5275
5276 rule_idx++;
5277
d0e18f83
LR		 5278 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5279 r = -EINVAL;
b2e1b302 5280 goto bad_reg;
d0e18f83 5281 }
b2e1b302
LR		 5282 }
5283
b2e1b302 5284 r = set_regdom(rd);
6913b49a 5285 /* set_regdom took ownership */
1a919318 5286 rd = NULL;
b2e1b302 5287
d2372b31 5288 bad_reg:
b2e1b302 5289 kfree(rd);
d0e18f83 5290 return r;
b2e1b302
LR		 5291}
5292
83f5e2cf
JB		 5293static int validate_scan_freqs(struct nlattr *freqs)
5294{
5295 struct nlattr *attr1, *attr2;
5296 int n_channels = 0, tmp1, tmp2;
5297
5298 nla_for_each_nested(attr1, freqs, tmp1) {
5299 n_channels++;
5300 /*
5301 * Some hardware has a limited channel list for
5302 * scanning, and it is pretty much nonsensical
5303 * to scan for a channel twice, so disallow that
5304 * and don't require drivers to check that the
5305 * channel list they get isn't longer than what
5306 * they can scan, as long as they can scan all
5307 * the channels they registered at once.
5308 */
5309 nla_for_each_nested(attr2, freqs, tmp2)
5310 if (attr1 != attr2 &&
5311 nla_get_u32(attr1) == nla_get_u32(attr2))
5312 return 0;
5313 }
5314
5315 return n_channels;
5316}
5317
2a519311
JB		 5318static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5319{
4c476991 5320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5321 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5322 struct cfg80211_scan_request *request;
2a519311
JB		 5323 struct nlattr *attr;
5324 struct wiphy *wiphy;
83f5e2cf 5325 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5326 size_t ie_len;
2a519311 5327
f4a11bb0
JB		 5328 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5329 return -EINVAL;
5330
79c97e97 5331 wiphy = &rdev->wiphy;
2a519311 5332
4c476991
JB		 5333 if (!rdev->ops->scan)
5334 return -EOPNOTSUPP;
2a519311 5335
f9d15d16 5336 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5337 err = -EBUSY;
5338 goto unlock;
5339 }
2a519311
JB		 5340
5341 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5342 n_channels = validate_scan_freqs(
5343 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5344 if (!n_channels) {
5345 err = -EINVAL;
5346 goto unlock;
5347 }
2a519311 5348 } else {
bdfbec2d 5349 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5350 }
5351
5352 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5353 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5354 n_ssids++;
5355
f9f47529
JB		 5356 if (n_ssids > wiphy->max_scan_ssids) {
5357 err = -EINVAL;
5358 goto unlock;
5359 }
2a519311 5360
70692ad2
JM		 5361 if (info->attrs[NL80211_ATTR_IE])
5362 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5363 else
5364 ie_len = 0;
5365
f9f47529
JB		 5366 if (ie_len > wiphy->max_scan_ie_len) {
5367 err = -EINVAL;
5368 goto unlock;
5369 }
18a83659 5370
2a519311 5371 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5372 + sizeof(*request->ssids) * n_ssids
5373 + sizeof(*request->channels) * n_channels
70692ad2 5374 + ie_len, GFP_KERNEL);
f9f47529
JB		 5375 if (!request) {
5376 err = -ENOMEM;
5377 goto unlock;
5378 }
2a519311 5379
2a519311 5380 if (n_ssids)
5ba63533 5381 request->ssids = (void *)&request->channels[n_channels];
2a519311 5382 request->n_ssids = n_ssids;
70692ad2
JM		 5383 if (ie_len) {
5384 if (request->ssids)
5385 request->ie = (void *)(request->ssids + n_ssids);
5386 else
5387 request->ie = (void *)(request->channels + n_channels);
5388 }
2a519311 5389
584991dc 5390 i = 0;
2a519311
JB		 5391 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5392 /* user specified, bail out if channel not found */
2a519311 5393 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5394 struct ieee80211_channel *chan;
5395
5396 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5397
5398 if (!chan) {
2a519311
JB		 5399 err = -EINVAL;
5400 goto out_free;
5401 }
584991dc
JB		 5402
5403 /* ignore disabled channels */
5404 if (chan->flags & IEEE80211_CHAN_DISABLED)
5405 continue;
5406
5407 request->channels[i] = chan;
2a519311
JB		 5408 i++;
5409 }
5410 } else {
34850ab2
JB		 5411 enum ieee80211_band band;
5412
2a519311 5413 /* all channels */
2a519311
JB		 5414 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5415 int j;
5416 if (!wiphy->bands[band])
5417 continue;
5418 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5419 struct ieee80211_channel *chan;
5420
5421 chan = &wiphy->bands[band]->channels[j];
5422
5423 if (chan->flags & IEEE80211_CHAN_DISABLED)
5424 continue;
5425
5426 request->channels[i] = chan;
2a519311
JB		 5427 i++;
5428 }
5429 }
5430 }
5431
584991dc
JB		 5432 if (!i) {
5433 err = -EINVAL;
5434 goto out_free;
5435 }
5436
5437 request->n_channels = i;
5438
2a519311
JB		 5439 i = 0;
5440 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5441 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5442 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5443 err = -EINVAL;
5444 goto out_free;
5445 }
57a27e1d 5446 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5447 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5448 i++;
5449 }
5450 }
5451
70692ad2
JM		 5452 if (info->attrs[NL80211_ATTR_IE]) {
5453 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5454 memcpy((void *)request->ie,
5455 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5456 request->ie_len);
5457 }
5458
34850ab2 5459 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5460 if (wiphy->bands[i])
5461 request->rates[i] =
5462 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5463
5464 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5465 nla_for_each_nested(attr,
5466 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5467 tmp) {
5468 enum ieee80211_band band = nla_type(attr);
5469
84404623 5470 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5471 err = -EINVAL;
5472 goto out_free;
5473 }
1b09cd82
FF		 5474
5475 if (!wiphy->bands[band])
5476 continue;
5477
34850ab2
JB		 5478 err = ieee80211_get_ratemask(wiphy->bands[band],
5479 nla_data(attr),
5480 nla_len(attr),
5481 &request->rates[band]);
5482 if (err)
5483 goto out_free;
5484 }
5485 }
5486
46856bbf 5487 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5488 request->flags = nla_get_u32(
5489 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5490 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5491 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5492 err = -EOPNOTSUPP;
5493 goto out_free;
5494 }
5495 }
ed473771 5496
e9f935e3
RM		 5497 request->no_cck =
5498 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5499
fd014284 5500 request->wdev = wdev;
79c97e97 5501 request->wiphy = &rdev->wiphy;
15d6030b 5502 request->scan_start = jiffies;
2a519311 5503
79c97e97 5504 rdev->scan_req = request;
e35e4d28 5505 err = rdev_scan(rdev, request);
2a519311 5506
463d0183 5507 if (!err) {
fd014284
JB		 5508 nl80211_send_scan_start(rdev, wdev);
5509 if (wdev->netdev)
5510 dev_hold(wdev->netdev);
4c476991 5511 } else {
2a519311 5512 out_free:
79c97e97 5513 rdev->scan_req = NULL;
2a519311
JB		 5514 kfree(request);
5515 }
3b85875a 5516
f9f47529 5517 unlock:
2a519311
JB		 5518 return err;
5519}
5520
807f8a8c
LC		 5521static int nl80211_start_sched_scan(struct sk_buff *skb,
5522 struct genl_info *info)
5523{
5524 struct cfg80211_sched_scan_request *request;
5525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5526 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5527 struct nlattr *attr;
5528 struct wiphy *wiphy;
a1f1c21c 5529 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5530 u32 interval;
807f8a8c
LC		 5531 enum ieee80211_band band;
5532 size_t ie_len;
a1f1c21c 5533 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5534 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5535
5536 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5537 !rdev->ops->sched_scan_start)
5538 return -EOPNOTSUPP;
5539
5540 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5541 return -EINVAL;
5542
bbe6ad6d
LC		 5543 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5544 return -EINVAL;
5545
5546 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5547 if (interval == 0)
5548 return -EINVAL;
5549
807f8a8c
LC		 5550 wiphy = &rdev->wiphy;
5551
5552 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5553 n_channels = validate_scan_freqs(
5554 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5555 if (!n_channels)
5556 return -EINVAL;
5557 } else {
bdfbec2d 5558 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5559 }
5560
5561 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5562 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5563 tmp)
5564 n_ssids++;
5565
93b6aa69 5566 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5567 return -EINVAL;
5568
ea73cbce
JB		 5569 /*
5570 * First, count the number of 'real' matchsets. Due to an issue with
5571 * the old implementation, matchsets containing only the RSSI attribute
5572 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5573 * RSSI for all matchsets, rather than their own matchset for reporting
5574 * all APs with a strong RSSI. This is needed to be compatible with
5575 * older userspace that treated a matchset with only the RSSI as the
5576 * global RSSI for all other matchsets - if there are other matchsets.
5577 */
5578 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5579 nla_for_each_nested(attr,
5580 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5581 tmp) {
5582 struct nlattr *rssi;
5583
5584 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5585 nla_data(attr), nla_len(attr),
5586 nl80211_match_policy);
5587 if (err)
5588 return err;
5589 /* add other standalone attributes here */
5590 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5591 n_match_sets++;
5592 continue;
5593 }
5594 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5595 if (rssi)
5596 default_match_rssi = nla_get_s32(rssi);
5597 }
5598 }
5599
5600 /* However, if there's no other matchset, add the RSSI one */
5601 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5602 n_match_sets = 1;
a1f1c21c
LC		 5603
5604 if (n_match_sets > wiphy->max_match_sets)
5605 return -EINVAL;
5606
807f8a8c
LC		 5607 if (info->attrs[NL80211_ATTR_IE])
5608 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5609 else
5610 ie_len = 0;
5611
5a865bad 5612 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5613 return -EINVAL;
5614
c10841ca
LC		 5615 if (rdev->sched_scan_req) {
5616 err = -EINPROGRESS;
5617 goto out;
5618 }
5619
807f8a8c 5620 request = kzalloc(sizeof(*request)
a2cd43c5 5621 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5622 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5623 + sizeof(*request->channels) * n_channels
807f8a8c 5624 + ie_len, GFP_KERNEL);
c10841ca
LC		 5625 if (!request) {
5626 err = -ENOMEM;
5627 goto out;
5628 }
807f8a8c
LC		 5629
5630 if (n_ssids)
5631 request->ssids = (void *)&request->channels[n_channels];
5632 request->n_ssids = n_ssids;
5633 if (ie_len) {
5634 if (request->ssids)
5635 request->ie = (void *)(request->ssids + n_ssids);
5636 else
5637 request->ie = (void *)(request->channels + n_channels);
5638 }
5639
a1f1c21c
LC		 5640 if (n_match_sets) {
5641 if (request->ie)
5642 request->match_sets = (void *)(request->ie + ie_len);
5643 else if (request->ssids)
5644 request->match_sets =
5645 (void *)(request->ssids + n_ssids);
5646 else
5647 request->match_sets =
5648 (void *)(request->channels + n_channels);
5649 }
5650 request->n_match_sets = n_match_sets;
5651
807f8a8c
LC		 5652 i = 0;
5653 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5654 /* user specified, bail out if channel not found */
5655 nla_for_each_nested(attr,
5656 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5657 tmp) {
5658 struct ieee80211_channel *chan;
5659
5660 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5661
5662 if (!chan) {
5663 err = -EINVAL;
5664 goto out_free;
5665 }
5666
5667 /* ignore disabled channels */
5668 if (chan->flags & IEEE80211_CHAN_DISABLED)
5669 continue;
5670
5671 request->channels[i] = chan;
5672 i++;
5673 }
5674 } else {
5675 /* all channels */
5676 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5677 int j;
5678 if (!wiphy->bands[band])
5679 continue;
5680 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5681 struct ieee80211_channel *chan;
5682
5683 chan = &wiphy->bands[band]->channels[j];
5684
5685 if (chan->flags & IEEE80211_CHAN_DISABLED)
5686 continue;
5687
5688 request->channels[i] = chan;
5689 i++;
5690 }
5691 }
5692 }
5693
5694 if (!i) {
5695 err = -EINVAL;
5696 goto out_free;
5697 }
5698
5699 request->n_channels = i;
5700
5701 i = 0;
5702 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5703 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5704 tmp) {
57a27e1d 5705 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5706 err = -EINVAL;
5707 goto out_free;
5708 }
57a27e1d 5709 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5710 memcpy(request->ssids[i].ssid, nla_data(attr),
5711 nla_len(attr));
807f8a8c
LC		 5712 i++;
5713 }
5714 }
5715
a1f1c21c
LC		 5716 i = 0;
5717 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5718 nla_for_each_nested(attr,
5719 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5720 tmp) {
88e920b4 5721 struct nlattr *ssid, *rssi;
a1f1c21c 5722
ae811e21
JB		 5723 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5724 nla_data(attr), nla_len(attr),
5725 nl80211_match_policy);
5726 if (err)
5727 goto out_free;
4a4ab0d7 5728 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5729 if (ssid) {
ea73cbce
JB		 5730 if (WARN_ON(i >= n_match_sets)) {
5731 /* this indicates a programming error,
5732 * the loop above should have verified
5733 * things properly
5734 */
5735 err = -EINVAL;
5736 goto out_free;
5737 }
5738
a1f1c21c
LC		 5739 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5740 err = -EINVAL;
5741 goto out_free;
5742 }
5743 memcpy(request->match_sets[i].ssid.ssid,
5744 nla_data(ssid), nla_len(ssid));
5745 request->match_sets[i].ssid.ssid_len =
5746 nla_len(ssid);
ea73cbce
JB		 5747 /* special attribute - old implemenation w/a */
5748 request->match_sets[i].rssi_thold =
5749 default_match_rssi;
5750 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5751 if (rssi)
5752 request->match_sets[i].rssi_thold =
5753 nla_get_s32(rssi);
a1f1c21c
LC		 5754 }
5755 i++;
5756 }
ea73cbce
JB		 5757
5758 /* there was no other matchset, so the RSSI one is alone */
5759 if (i == 0)
5760 request->match_sets[0].rssi_thold = default_match_rssi;
5761
5762 request->min_rssi_thold = INT_MAX;
5763 for (i = 0; i < n_match_sets; i++)
5764 request->min_rssi_thold =
5765 min(request->match_sets[i].rssi_thold,
5766 request->min_rssi_thold);
5767 } else {
5768 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5769 }
5770
9900e484
JB		 5771 if (ie_len) {
5772 request->ie_len = ie_len;
807f8a8c
LC		 5773 memcpy((void *)request->ie,
5774 nla_data(info->attrs[NL80211_ATTR_IE]),
5775 request->ie_len);
5776 }
5777
46856bbf 5778 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5779 request->flags = nla_get_u32(
5780 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5781 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5782 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5783 err = -EOPNOTSUPP;
5784 goto out_free;
5785 }
5786 }
ed473771 5787
807f8a8c
LC		 5788 request->dev = dev;
5789 request->wiphy = &rdev->wiphy;
bbe6ad6d 5790 request->interval = interval;
15d6030b 5791 request->scan_start = jiffies;
807f8a8c 5792
e35e4d28 5793 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5794 if (!err) {
5795 rdev->sched_scan_req = request;
5796 nl80211_send_sched_scan(rdev, dev,
5797 NL80211_CMD_START_SCHED_SCAN);
5798 goto out;
5799 }
5800
5801out_free:
5802 kfree(request);
5803out:
5804 return err;
5805}
5806
5807static int nl80211_stop_sched_scan(struct sk_buff *skb,
5808 struct genl_info *info)
5809{
5810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5811
5812 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5813 !rdev->ops->sched_scan_stop)
5814 return -EOPNOTSUPP;
5815
5fe231e8 5816 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5817}
5818
04f39047
SW		 5819static int nl80211_start_radar_detection(struct sk_buff *skb,
5820 struct genl_info *info)
5821{
5822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5823 struct net_device *dev = info->user_ptr[1];
5824 struct wireless_dev *wdev = dev->ieee80211_ptr;
5825 struct cfg80211_chan_def chandef;
55f7435c 5826 enum nl80211_dfs_regions dfs_region;
31559f35 5827 unsigned int cac_time_ms;
04f39047
SW		 5828 int err;
5829
55f7435c
LR		 5830 dfs_region = reg_get_dfs_region(wdev->wiphy);
5831 if (dfs_region == NL80211_DFS_UNSET)
5832 return -EINVAL;
5833
04f39047
SW		 5834 err = nl80211_parse_chandef(rdev, info, &chandef);
5835 if (err)
5836 return err;
5837
ff311bc1
SW		 5838 if (netif_carrier_ok(dev))
5839 return -EBUSY;
5840
04f39047
SW		 5841 if (wdev->cac_started)
5842 return -EBUSY;
5843
2beb6dab 5844 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5845 wdev->iftype);
04f39047
SW		 5846 if (err < 0)
5847 return err;
5848
5849 if (err == 0)
5850 return -EINVAL;
5851
fe7c3a1f 5852 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5853 return -EINVAL;
5854
5855 if (!rdev->ops->start_radar_detection)
5856 return -EOPNOTSUPP;
5857
31559f35
JD		 5858 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5859 if (WARN_ON(!cac_time_ms))
5860 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5861
5862 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5863 cac_time_ms);
04f39047 5864 if (!err) {
9e0e2961 5865 wdev->chandef = chandef;
04f39047
SW		 5866 wdev->cac_started = true;
5867 wdev->cac_start_time = jiffies;
31559f35 5868 wdev->cac_time_ms = cac_time_ms;
04f39047 5869 }
04f39047
SW		 5870 return err;
5871}
5872
16ef1fe2
SW		 5873static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5874{
5875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5876 struct net_device *dev = info->user_ptr[1];
5877 struct wireless_dev *wdev = dev->ieee80211_ptr;
5878 struct cfg80211_csa_settings params;
5879 /* csa_attrs is defined static to avoid waste of stack size - this
5880 * function is called under RTNL lock, so this should not be a problem.
5881 */
5882 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5883 u8 radar_detect_width = 0;
5884 int err;
ee4bc9e7 5885 bool need_new_beacon = false;
9a774c78 5886 int len, i;
16ef1fe2
SW		 5887
5888 if (!rdev->ops->channel_switch ||
5889 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5890 return -EOPNOTSUPP;
5891
ee4bc9e7
SW		 5892 switch (dev->ieee80211_ptr->iftype) {
5893 case NL80211_IFTYPE_AP:
5894 case NL80211_IFTYPE_P2P_GO:
5895 need_new_beacon = true;
5896
5897 /* useless if AP is not running */
5898 if (!wdev->beacon_interval)
1ff79dfa 5899 return -ENOTCONN;
ee4bc9e7
SW		 5900 break;
5901 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 5902 if (!wdev->ssid_len)
5903 return -ENOTCONN;
5904 break;
c6da674a 5905 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 5906 if (!wdev->mesh_id_len)
5907 return -ENOTCONN;
ee4bc9e7
SW		 5908 break;
5909 default:
16ef1fe2 5910 return -EOPNOTSUPP;
ee4bc9e7 5911 }
16ef1fe2
SW		 5912
5913 memset(&params, 0, sizeof(params));
5914
5915 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5916 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5917 return -EINVAL;
5918
5919 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5920 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5921 return -EINVAL;
5922
5923 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5924
ee4bc9e7
SW		 5925 if (!need_new_beacon)
5926 goto skip_beacons;
5927
16ef1fe2
SW		 5928 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5929 if (err)
5930 return err;
5931
5932 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5933 info->attrs[NL80211_ATTR_CSA_IES],
5934 nl80211_policy);
5935 if (err)
5936 return err;
5937
5938 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5939 if (err)
5940 return err;
5941
5942 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5943 return -EINVAL;
5944
9a774c78
AO		 5945 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5946 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5947 return -EINVAL;
5948
9a774c78
AO		 5949 params.n_counter_offsets_beacon = len / sizeof(u16);
5950 if (rdev->wiphy.max_num_csa_counters &&
5951 (params.n_counter_offsets_beacon >
5952 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 5953 return -EINVAL;
5954
9a774c78
AO		 5955 params.counter_offsets_beacon =
5956 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5957
5958 /* sanity checks - counters should fit and be the same */
5959 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5960 u16 offset = params.counter_offsets_beacon[i];
5961
5962 if (offset >= params.beacon_csa.tail_len)
5963 return -EINVAL;
5964
5965 if (params.beacon_csa.tail[offset] != params.count)
5966 return -EINVAL;
5967 }
5968
16ef1fe2 5969 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 5970 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5971 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 5972 return -EINVAL;
5973
9a774c78
AO		 5974 params.n_counter_offsets_presp = len / sizeof(u16);
5975 if (rdev->wiphy.max_num_csa_counters &&
5976 (params.n_counter_offsets_beacon >
5977 rdev->wiphy.max_num_csa_counters))
16ef1fe2 5978 return -EINVAL;
9a774c78
AO		 5979
5980 params.counter_offsets_presp =
5981 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5982
5983 /* sanity checks - counters should fit and be the same */
5984 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5985 u16 offset = params.counter_offsets_presp[i];
5986
5987 if (offset >= params.beacon_csa.probe_resp_len)
5988 return -EINVAL;
5989
5990 if (params.beacon_csa.probe_resp[offset] !=
5991 params.count)
5992 return -EINVAL;
5993 }
16ef1fe2
SW		 5994 }
5995
ee4bc9e7 5996skip_beacons:
16ef1fe2
SW		 5997 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5998 if (err)
5999 return err;
6000
174e0cd2
IP		 6001 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6002 wdev->iftype))
16ef1fe2
SW		 6003 return -EINVAL;
6004
2beb6dab
LC		 6005 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6006 &params.chandef,
6007 wdev->iftype);
6008 if (err < 0)
6009 return err;
6010
6011 if (err > 0) {
6012 radar_detect_width = BIT(params.chandef.width);
6013 params.radar_required = true;
16ef1fe2
SW		 6014 }
6015
16ef1fe2
SW		 6016 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6017 params.block_tx = true;
6018
c56589ed
SW		 6019 wdev_lock(wdev);
6020 err = rdev_channel_switch(rdev, dev, &params);
6021 wdev_unlock(wdev);
6022
6023 return err;
16ef1fe2
SW		 6024}
6025
9720bb3a
JB		 6026static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6027 u32 seq, int flags,
2a519311 6028 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6029 struct wireless_dev *wdev,
6030 struct cfg80211_internal_bss *intbss)
2a519311 6031{
48ab905d 6032 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6033 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6034 void *hdr;
6035 struct nlattr *bss;
8cef2c9d 6036 bool tsf = false;
48ab905d
JB		 6037
6038 ASSERT_WDEV_LOCK(wdev);
2a519311 6039
15e47304 6040 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6041 NL80211_CMD_NEW_SCAN_RESULTS);
6042 if (!hdr)
6043 return -1;
6044
9720bb3a
JB		 6045 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6046
97990a06
JB		 6047 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6048 goto nla_put_failure;
6049 if (wdev->netdev &&
9360ffd1
DM		 6050 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6051 goto nla_put_failure;
97990a06
JB		 6052 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6053 goto nla_put_failure;
2a519311
JB		 6054
6055 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6056 if (!bss)
6057 goto nla_put_failure;
9360ffd1 6058 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6059 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6060 goto nla_put_failure;
9caf0364
JB		 6061
6062 rcu_read_lock();
6063 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6064 if (ies) {
6065 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6066 goto fail_unlock_rcu;
6067 tsf = true;
6068 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6069 ies->len, ies->data))
6070 goto fail_unlock_rcu;
9caf0364
JB		 6071 }
6072 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 6073 if (ies) {
6074 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6075 goto fail_unlock_rcu;
6076 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6077 ies->len, ies->data))
6078 goto fail_unlock_rcu;
9caf0364
JB		 6079 }
6080 rcu_read_unlock();
6081
9360ffd1
DM		 6082 if (res->beacon_interval &&
6083 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6084 goto nla_put_failure;
6085 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6086 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6087 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6088 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6089 jiffies_to_msecs(jiffies - intbss->ts)))
6090 goto nla_put_failure;
2a519311 6091
77965c97 6092 switch (rdev->wiphy.signal_type) {
2a519311 6093 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6094 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6095 goto nla_put_failure;
2a519311
JB		 6096 break;
6097 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6098 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6099 goto nla_put_failure;
2a519311
JB		 6100 break;
6101 default:
6102 break;
6103 }
6104
48ab905d 6105 switch (wdev->iftype) {
074ac8df 6106 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6107 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6108 if (intbss == wdev->current_bss &&
6109 nla_put_u32(msg, NL80211_BSS_STATUS,
6110 NL80211_BSS_STATUS_ASSOCIATED))
6111 goto nla_put_failure;
48ab905d
JB		 6112 break;
6113 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6114 if (intbss == wdev->current_bss &&
6115 nla_put_u32(msg, NL80211_BSS_STATUS,
6116 NL80211_BSS_STATUS_IBSS_JOINED))
6117 goto nla_put_failure;
48ab905d
JB		 6118 break;
6119 default:
6120 break;
6121 }
6122
2a519311
JB		 6123 nla_nest_end(msg, bss);
6124
6125 return genlmsg_end(msg, hdr);
6126
8cef2c9d
JB		 6127 fail_unlock_rcu:
6128 rcu_read_unlock();
2a519311
JB		 6129 nla_put_failure:
6130 genlmsg_cancel(msg, hdr);
6131 return -EMSGSIZE;
6132}
6133
97990a06 6134static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6135{
48ab905d 6136 struct cfg80211_registered_device *rdev;
2a519311 6137 struct cfg80211_internal_bss *scan;
48ab905d 6138 struct wireless_dev *wdev;
97990a06 6139 int start = cb->args[2], idx = 0;
2a519311
JB		 6140 int err;
6141
97990a06 6142 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6143 if (err)
6144 return err;
2a519311 6145
48ab905d
JB		 6146 wdev_lock(wdev);
6147 spin_lock_bh(&rdev->bss_lock);
6148 cfg80211_bss_expire(rdev);
6149
9720bb3a
JB		 6150 cb->seq = rdev->bss_generation;
6151
48ab905d 6152 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6153 if (++idx <= start)
6154 continue;
9720bb3a 6155 if (nl80211_send_bss(skb, cb,
2a519311 6156 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6157 rdev, wdev, scan) < 0) {
2a519311 6158 idx--;
67748893 6159 break;
2a519311
JB		 6160 }
6161 }
6162
48ab905d
JB		 6163 spin_unlock_bh(&rdev->bss_lock);
6164 wdev_unlock(wdev);
2a519311 6165
97990a06
JB		 6166 cb->args[2] = idx;
6167 nl80211_finish_wdev_dump(rdev);
2a519311 6168
67748893 6169 return skb->len;
2a519311
JB		 6170}
6171
15e47304 6172static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6173 int flags, struct net_device *dev,
6174 struct survey_info *survey)
6175{
6176 void *hdr;
6177 struct nlattr *infoattr;
6178
15e47304 6179 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6180 NL80211_CMD_NEW_SURVEY_RESULTS);
6181 if (!hdr)
6182 return -ENOMEM;
6183
9360ffd1
DM		 6184 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6185 goto nla_put_failure;
61fa713c
HS		 6186
6187 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6188 if (!infoattr)
6189 goto nla_put_failure;
6190
9360ffd1
DM		 6191 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6192 survey->channel->center_freq))
6193 goto nla_put_failure;
6194
6195 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6196 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6197 goto nla_put_failure;
6198 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6199 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6200 goto nla_put_failure;
6201 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6202 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6203 survey->channel_time))
6204 goto nla_put_failure;
6205 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6206 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6207 survey->channel_time_busy))
6208 goto nla_put_failure;
6209 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6210 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6211 survey->channel_time_ext_busy))
6212 goto nla_put_failure;
6213 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6214 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6215 survey->channel_time_rx))
6216 goto nla_put_failure;
6217 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6218 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6219 survey->channel_time_tx))
6220 goto nla_put_failure;
61fa713c
HS		 6221
6222 nla_nest_end(msg, infoattr);
6223
6224 return genlmsg_end(msg, hdr);
6225
6226 nla_put_failure:
6227 genlmsg_cancel(msg, hdr);
6228 return -EMSGSIZE;
6229}
6230
6231static int nl80211_dump_survey(struct sk_buff *skb,
6232 struct netlink_callback *cb)
6233{
6234 struct survey_info survey;
1b8ec87a 6235 struct cfg80211_registered_device *rdev;
97990a06
JB		 6236 struct wireless_dev *wdev;
6237 int survey_idx = cb->args[2];
61fa713c
HS		 6238 int res;
6239
1b8ec87a 6240 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6241 if (res)
6242 return res;
61fa713c 6243
97990a06
JB		 6244 if (!wdev->netdev) {
6245 res = -EINVAL;
6246 goto out_err;
6247 }
6248
1b8ec87a 6249 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6250 res = -EOPNOTSUPP;
6251 goto out_err;
6252 }
6253
6254 while (1) {
180cdc79
LR		 6255 struct ieee80211_channel *chan;
6256
1b8ec87a 6257 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6258 if (res == -ENOENT)
6259 break;
6260 if (res)
6261 goto out_err;
6262
180cdc79
LR		 6263 /* Survey without a channel doesn't make sense */
6264 if (!survey.channel) {
6265 res = -EINVAL;
6266 goto out;
6267 }
6268
1b8ec87a 6269 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6270 survey.channel->center_freq);
6271 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6272 survey_idx++;
6273 continue;
6274 }
6275
61fa713c 6276 if (nl80211_send_survey(skb,
15e47304 6277 NETLINK_CB(cb->skb).portid,
61fa713c 6278 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6279 wdev->netdev, &survey) < 0)
61fa713c
HS		 6280 goto out;
6281 survey_idx++;
6282 }
6283
6284 out:
97990a06 6285 cb->args[2] = survey_idx;
61fa713c
HS		 6286 res = skb->len;
6287 out_err:
1b8ec87a 6288 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6289 return res;
6290}
6291
b23aa676
SO		 6292static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6293{
6294 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6295 NL80211_WPA_VERSION_2));
6296}
6297
636a5d36
JM		 6298static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6299{
4c476991
JB		 6300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6301 struct net_device *dev = info->user_ptr[1];
19957bb3 6302 struct ieee80211_channel *chan;
e39e5b5e
JM		 6303 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6304 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6305 enum nl80211_auth_type auth_type;
fffd0934 6306 struct key_parse key;
d5cdfacb 6307 bool local_state_change;
636a5d36 6308
f4a11bb0
JB		 6309 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6310 return -EINVAL;
6311
6312 if (!info->attrs[NL80211_ATTR_MAC])
6313 return -EINVAL;
6314
1778092e
JM		 6315 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6316 return -EINVAL;
6317
19957bb3
JB		 6318 if (!info->attrs[NL80211_ATTR_SSID])
6319 return -EINVAL;
6320
6321 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6322 return -EINVAL;
6323
fffd0934
JB		 6324 err = nl80211_parse_key(info, &key);
6325 if (err)
6326 return err;
6327
6328 if (key.idx >= 0) {
e31b8213
JB		 6329 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6330 return -EINVAL;
fffd0934
JB		 6331 if (!key.p.key || !key.p.key_len)
6332 return -EINVAL;
6333 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6334 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6335 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6336 key.p.key_len != WLAN_KEY_LEN_WEP104))
6337 return -EINVAL;
6338 if (key.idx > 4)
6339 return -EINVAL;
6340 } else {
6341 key.p.key_len = 0;
6342 key.p.key = NULL;
6343 }
6344
afea0b7a
JB		 6345 if (key.idx >= 0) {
6346 int i;
6347 bool ok = false;
6348 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6349 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6350 ok = true;
6351 break;
6352 }
6353 }
4c476991
JB		 6354 if (!ok)
6355 return -EINVAL;
afea0b7a
JB		 6356 }
6357
4c476991
JB		 6358 if (!rdev->ops->auth)
6359 return -EOPNOTSUPP;
636a5d36 6360
074ac8df 6361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6363 return -EOPNOTSUPP;
eec60b03 6364
19957bb3 6365 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6366 chan = nl80211_get_valid_chan(&rdev->wiphy,
6367 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6368 if (!chan)
4c476991 6369 return -EINVAL;
636a5d36 6370
19957bb3
JB		 6371 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6372 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6373
6374 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6375 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6376 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6377 }
6378
19957bb3 6379 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6380 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6381 return -EINVAL;
636a5d36 6382
e39e5b5e
JM		 6383 if (auth_type == NL80211_AUTHTYPE_SAE &&
6384 !info->attrs[NL80211_ATTR_SAE_DATA])
6385 return -EINVAL;
6386
6387 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6388 if (auth_type != NL80211_AUTHTYPE_SAE)
6389 return -EINVAL;
6390 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6391 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6392 /* need to include at least Auth Transaction and Status Code */
6393 if (sae_data_len < 4)
6394 return -EINVAL;
6395 }
6396
d5cdfacb
JM		 6397 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6398
95de817b
JB		 6399 /*
6400 * Since we no longer track auth state, ignore
6401 * requests to only change local state.
6402 */
6403 if (local_state_change)
6404 return 0;
6405
91bf9b26
JB		 6406 wdev_lock(dev->ieee80211_ptr);
6407 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6408 ssid, ssid_len, ie, ie_len,
6409 key.p.key, key.p.key_len, key.idx,
6410 sae_data, sae_data_len);
6411 wdev_unlock(dev->ieee80211_ptr);
6412 return err;
636a5d36
JM		 6413}
6414
c0692b8f
JB		 6415static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6416 struct genl_info *info,
3dc27d25
JB		 6417 struct cfg80211_crypto_settings *settings,
6418 int cipher_limit)
b23aa676 6419{
c0b2bbd8
JB		 6420 memset(settings, 0, sizeof(*settings));
6421
b23aa676
SO		 6422 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6423
c0692b8f
JB		 6424 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6425 u16 proto;
6426 proto = nla_get_u16(
6427 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6428 settings->control_port_ethertype = cpu_to_be16(proto);
6429 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6430 proto != ETH_P_PAE)
6431 return -EINVAL;
6432 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6433 settings->control_port_no_encrypt = true;
6434 } else
6435 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6436
b23aa676
SO		 6437 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6438 void *data;
6439 int len, i;
6440
6441 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6442 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6443 settings->n_ciphers_pairwise = len / sizeof(u32);
6444
6445 if (len % sizeof(u32))
6446 return -EINVAL;
6447
3dc27d25 6448 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6449 return -EINVAL;
6450
6451 memcpy(settings->ciphers_pairwise, data, len);
6452
6453 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6454 if (!cfg80211_supported_cipher_suite(
6455 &rdev->wiphy,
b23aa676
SO		 6456 settings->ciphers_pairwise[i]))
6457 return -EINVAL;
6458 }
6459
6460 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6461 settings->cipher_group =
6462 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6463 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6464 settings->cipher_group))
b23aa676
SO		 6465 return -EINVAL;
6466 }
6467
6468 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6469 settings->wpa_versions =
6470 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6471 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6472 return -EINVAL;
6473 }
6474
6475 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6476 void *data;
6d30240e 6477 int len;
b23aa676
SO		 6478
6479 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6480 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6481 settings->n_akm_suites = len / sizeof(u32);
6482
6483 if (len % sizeof(u32))
6484 return -EINVAL;
6485
1b9ca027
JM		 6486 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6487 return -EINVAL;
6488
b23aa676 6489 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6490 }
6491
6492 return 0;
6493}
6494
636a5d36
JM		 6495static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6496{
4c476991
JB		 6497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6498 struct net_device *dev = info->user_ptr[1];
f444de05 6499 struct ieee80211_channel *chan;
f62fab73
JB		 6500 struct cfg80211_assoc_request req = {};
6501 const u8 *bssid, *ssid;
6502 int err, ssid_len = 0;
636a5d36 6503
f4a11bb0
JB		 6504 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6505 return -EINVAL;
6506
6507 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6508 !info->attrs[NL80211_ATTR_SSID] ||
6509 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6510 return -EINVAL;
6511
4c476991
JB		 6512 if (!rdev->ops->assoc)
6513 return -EOPNOTSUPP;
636a5d36 6514
074ac8df 6515 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6516 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6517 return -EOPNOTSUPP;
eec60b03 6518
19957bb3 6519 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6520
664834de
JM		 6521 chan = nl80211_get_valid_chan(&rdev->wiphy,
6522 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6523 if (!chan)
4c476991 6524 return -EINVAL;
636a5d36 6525
19957bb3
JB		 6526 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6527 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6528
6529 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6530 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6531 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6532 }
6533
dc6382ce 6534 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6535 enum nl80211_mfp mfp =
dc6382ce 6536 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6537 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6538 req.use_mfp = true;
4c476991
JB		 6539 else if (mfp != NL80211_MFP_NO)
6540 return -EINVAL;
dc6382ce
JM		 6541 }
6542
3e5d7649 6543 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6544 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6545
7e7c8926 6546 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6547 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6548
6549 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6550 memcpy(&req.ht_capa_mask,
6551 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6552 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6553
6554 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6555 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6556 return -EINVAL;
f62fab73
JB		 6557 memcpy(&req.ht_capa,
6558 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6559 sizeof(req.ht_capa));
7e7c8926
BG		 6560 }
6561
ee2aca34 6562 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6563 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6564
6565 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6566 memcpy(&req.vht_capa_mask,
6567 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6568 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6569
6570 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6571 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6572 return -EINVAL;
f62fab73
JB		 6573 memcpy(&req.vht_capa,
6574 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6575 sizeof(req.vht_capa));
ee2aca34
JB		 6576 }
6577
f62fab73 6578 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6579 if (!err) {
6580 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6581 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6582 ssid, ssid_len, &req);
91bf9b26
JB		 6583 wdev_unlock(dev->ieee80211_ptr);
6584 }
636a5d36 6585
636a5d36
JM		 6586 return err;
6587}
6588
6589static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6590{
4c476991
JB		 6591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6592 struct net_device *dev = info->user_ptr[1];
19957bb3 6593 const u8 *ie = NULL, *bssid;
91bf9b26 6594 int ie_len = 0, err;
19957bb3 6595 u16 reason_code;
d5cdfacb 6596 bool local_state_change;
636a5d36 6597
f4a11bb0
JB		 6598 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6599 return -EINVAL;
6600
6601 if (!info->attrs[NL80211_ATTR_MAC])
6602 return -EINVAL;
6603
6604 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6605 return -EINVAL;
6606
4c476991
JB		 6607 if (!rdev->ops->deauth)
6608 return -EOPNOTSUPP;
636a5d36 6609
074ac8df 6610 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6611 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6612 return -EOPNOTSUPP;
eec60b03 6613
19957bb3 6614 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6615
19957bb3
JB		 6616 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6617 if (reason_code == 0) {
f4a11bb0 6618 /* Reason Code 0 is reserved */
4c476991 6619 return -EINVAL;
255e737e 6620 }
636a5d36
JM		 6621
6622 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6623 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6624 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6625 }
6626
d5cdfacb
JM		 6627 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6628
91bf9b26
JB		 6629 wdev_lock(dev->ieee80211_ptr);
6630 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6631 local_state_change);
6632 wdev_unlock(dev->ieee80211_ptr);
6633 return err;
636a5d36
JM		 6634}
6635
6636static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6637{
4c476991
JB		 6638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6639 struct net_device *dev = info->user_ptr[1];
19957bb3 6640 const u8 *ie = NULL, *bssid;
91bf9b26 6641 int ie_len = 0, err;
19957bb3 6642 u16 reason_code;
d5cdfacb 6643 bool local_state_change;
636a5d36 6644
f4a11bb0
JB		 6645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6646 return -EINVAL;
6647
6648 if (!info->attrs[NL80211_ATTR_MAC])
6649 return -EINVAL;
6650
6651 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6652 return -EINVAL;
6653
4c476991
JB		 6654 if (!rdev->ops->disassoc)
6655 return -EOPNOTSUPP;
636a5d36 6656
074ac8df 6657 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6658 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6659 return -EOPNOTSUPP;
eec60b03 6660
19957bb3 6661 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6662
19957bb3
JB		 6663 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6664 if (reason_code == 0) {
f4a11bb0 6665 /* Reason Code 0 is reserved */
4c476991 6666 return -EINVAL;
255e737e 6667 }
636a5d36
JM		 6668
6669 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6670 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6671 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6672 }
6673
d5cdfacb
JM		 6674 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6675
91bf9b26
JB		 6676 wdev_lock(dev->ieee80211_ptr);
6677 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6678 local_state_change);
6679 wdev_unlock(dev->ieee80211_ptr);
6680 return err;
636a5d36
JM		 6681}
6682
dd5b4cc7
FF		 6683static bool
6684nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6685 int mcast_rate[IEEE80211_NUM_BANDS],
6686 int rateval)
6687{
6688 struct wiphy *wiphy = &rdev->wiphy;
6689 bool found = false;
6690 int band, i;
6691
6692 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6693 struct ieee80211_supported_band *sband;
6694
6695 sband = wiphy->bands[band];
6696 if (!sband)
6697 continue;
6698
6699 for (i = 0; i < sband->n_bitrates; i++) {
6700 if (sband->bitrates[i].bitrate == rateval) {
6701 mcast_rate[band] = i + 1;
6702 found = true;
6703 break;
6704 }
6705 }
6706 }
6707
6708 return found;
6709}
6710
04a773ad
JB		 6711static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6712{
4c476991
JB		 6713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6714 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6715 struct cfg80211_ibss_params ibss;
6716 struct wiphy *wiphy;
fffd0934 6717 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6718 int err;
6719
8e30bc55
JB		 6720 memset(&ibss, 0, sizeof(ibss));
6721
04a773ad
JB		 6722 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6723 return -EINVAL;
6724
683b6d3b 6725 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6726 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6727 return -EINVAL;
6728
8e30bc55
JB		 6729 ibss.beacon_interval = 100;
6730
6731 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6732 ibss.beacon_interval =
6733 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6734 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6735 return -EINVAL;
6736 }
6737
4c476991
JB		 6738 if (!rdev->ops->join_ibss)
6739 return -EOPNOTSUPP;
04a773ad 6740
4c476991
JB		 6741 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6742 return -EOPNOTSUPP;
04a773ad 6743
79c97e97 6744 wiphy = &rdev->wiphy;
04a773ad 6745
39193498 6746 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6747 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6748
6749 if (!is_valid_ether_addr(ibss.bssid))
6750 return -EINVAL;
6751 }
04a773ad
JB		 6752 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6753 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6754
6755 if (info->attrs[NL80211_ATTR_IE]) {
6756 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6757 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6758 }
6759
683b6d3b
JB		 6760 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6761 if (err)
6762 return err;
04a773ad 6763
174e0cd2
IP		 6764 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6765 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6766 return -EINVAL;
6767
2f301ab2 6768 switch (ibss.chandef.width) {
bf372645
SW		 6769 case NL80211_CHAN_WIDTH_5:
6770 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6771 case NL80211_CHAN_WIDTH_20_NOHT:
6772 break;
6773 case NL80211_CHAN_WIDTH_20:
6774 case NL80211_CHAN_WIDTH_40:
6775 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6776 break;
6777 default:
c04d6150 6778 return -EINVAL;
2f301ab2 6779 }
db9c64cf 6780
04a773ad 6781 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6782 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6783
fbd2c8dc
TP		 6784 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6785 u8 *rates =
6786 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6787 int n_rates =
6788 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6789 struct ieee80211_supported_band *sband =
683b6d3b 6790 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6791
34850ab2
JB		 6792 err = ieee80211_get_ratemask(sband, rates, n_rates,
6793 &ibss.basic_rates);
6794 if (err)
6795 return err;
fbd2c8dc 6796 }
dd5b4cc7 6797
803768f5
SW		 6798 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6799 memcpy(&ibss.ht_capa_mask,
6800 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6801 sizeof(ibss.ht_capa_mask));
6802
6803 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6804 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6805 return -EINVAL;
6806 memcpy(&ibss.ht_capa,
6807 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6808 sizeof(ibss.ht_capa));
6809 }
6810
dd5b4cc7
FF		 6811 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6812 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6813 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6814 return -EINVAL;
fbd2c8dc 6815
4c476991 6816 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6817 bool no_ht = false;
6818
4c476991 6819 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6820 info->attrs[NL80211_ATTR_KEYS],
6821 &no_ht);
4c476991
JB		 6822 if (IS_ERR(connkeys))
6823 return PTR_ERR(connkeys);
de7044ee 6824
3d9d1d66
JB		 6825 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6826 no_ht) {
de7044ee
SM		 6827 kfree(connkeys);
6828 return -EINVAL;
6829 }
4c476991 6830 }
04a773ad 6831
267335d6
AQ		 6832 ibss.control_port =
6833 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6834
5336fa88
SW		 6835 ibss.userspace_handles_dfs =
6836 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6837
4c476991 6838 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6839 if (err)
6840 kfree(connkeys);
04a773ad
JB		 6841 return err;
6842}
6843
6844static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6845{
4c476991
JB		 6846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6847 struct net_device *dev = info->user_ptr[1];
04a773ad 6848
4c476991
JB		 6849 if (!rdev->ops->leave_ibss)
6850 return -EOPNOTSUPP;
04a773ad 6851
4c476991
JB		 6852 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6853 return -EOPNOTSUPP;
04a773ad 6854
4c476991 6855 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6856}
6857
f4e583c8
AQ		 6858static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6859{
6860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6861 struct net_device *dev = info->user_ptr[1];
6862 int mcast_rate[IEEE80211_NUM_BANDS];
6863 u32 nla_rate;
6864 int err;
6865
6866 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6867 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6868 return -EOPNOTSUPP;
6869
6870 if (!rdev->ops->set_mcast_rate)
6871 return -EOPNOTSUPP;
6872
6873 memset(mcast_rate, 0, sizeof(mcast_rate));
6874
6875 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6876 return -EINVAL;
6877
6878 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6879 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6880 return -EINVAL;
6881
6882 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6883
6884 return err;
6885}
6886
ad7e718c
JB		 6887static struct sk_buff *
6888__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6889 int approxlen, u32 portid, u32 seq,
6890 enum nl80211_commands cmd,
567ffc35
JB		 6891 enum nl80211_attrs attr,
6892 const struct nl80211_vendor_cmd_info *info,
6893 gfp_t gfp)
ad7e718c
JB		 6894{
6895 struct sk_buff *skb;
6896 void *hdr;
6897 struct nlattr *data;
6898
6899 skb = nlmsg_new(approxlen + 100, gfp);
6900 if (!skb)
6901 return NULL;
6902
6903 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6904 if (!hdr) {
6905 kfree_skb(skb);
6906 return NULL;
6907 }
6908
6909 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6910 goto nla_put_failure;
567ffc35
JB		 6911
6912 if (info) {
6913 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6914 info->vendor_id))
6915 goto nla_put_failure;
6916 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6917 info->subcmd))
6918 goto nla_put_failure;
6919 }
6920
ad7e718c
JB		 6921 data = nla_nest_start(skb, attr);
6922
6923 ((void **)skb->cb)[0] = rdev;
6924 ((void **)skb->cb)[1] = hdr;
6925 ((void **)skb->cb)[2] = data;
6926
6927 return skb;
6928
6929 nla_put_failure:
6930 kfree_skb(skb);
6931 return NULL;
6932}
f4e583c8 6933
e03ad6ea
JB		 6934struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6935 enum nl80211_commands cmd,
6936 enum nl80211_attrs attr,
6937 int vendor_event_idx,
6938 int approxlen, gfp_t gfp)
6939{
f26cbf40 6940 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 6941 const struct nl80211_vendor_cmd_info *info;
6942
6943 switch (cmd) {
6944 case NL80211_CMD_TESTMODE:
6945 if (WARN_ON(vendor_event_idx != -1))
6946 return NULL;
6947 info = NULL;
6948 break;
6949 case NL80211_CMD_VENDOR:
6950 if (WARN_ON(vendor_event_idx < 0 ||
6951 vendor_event_idx >= wiphy->n_vendor_events))
6952 return NULL;
6953 info = &wiphy->vendor_events[vendor_event_idx];
6954 break;
6955 default:
6956 WARN_ON(1);
6957 return NULL;
6958 }
6959
6960 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6961 cmd, attr, info, gfp);
6962}
6963EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6964
6965void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6966{
6967 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6968 void *hdr = ((void **)skb->cb)[1];
6969 struct nlattr *data = ((void **)skb->cb)[2];
6970 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6971
6972 nla_nest_end(skb, data);
6973 genlmsg_end(skb, hdr);
6974
6975 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6976 mcgrp = NL80211_MCGRP_VENDOR;
6977
6978 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6979 mcgrp, gfp);
6980}
6981EXPORT_SYMBOL(__cfg80211_send_event_skb);
6982
aff89a9b 6983#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 6984static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6985{
4c476991 6986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6987 struct wireless_dev *wdev =
6988 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6989 int err;
6990
fc73f11f
DS		 6991 if (!rdev->ops->testmode_cmd)
6992 return -EOPNOTSUPP;
6993
6994 if (IS_ERR(wdev)) {
6995 err = PTR_ERR(wdev);
6996 if (err != -EINVAL)
6997 return err;
6998 wdev = NULL;
6999 } else if (wdev->wiphy != &rdev->wiphy) {
7000 return -EINVAL;
7001 }
7002
aff89a9b
JB		 7003 if (!info->attrs[NL80211_ATTR_TESTDATA])
7004 return -EINVAL;
7005
ad7e718c 7006 rdev->cur_cmd_info = info;
fc73f11f 7007 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7008 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7009 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7010 rdev->cur_cmd_info = NULL;
aff89a9b 7011
aff89a9b
JB		 7012 return err;
7013}
7014
71063f0e
WYG		 7015static int nl80211_testmode_dump(struct sk_buff *skb,
7016 struct netlink_callback *cb)
7017{
00918d33 7018 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7019 int err;
7020 long phy_idx;
7021 void *data = NULL;
7022 int data_len = 0;
7023
5fe231e8
JB		 7024 rtnl_lock();
7025
71063f0e
WYG		 7026 if (cb->args[0]) {
7027 /*
7028 * 0 is a valid index, but not valid for args[0],
7029 * so we need to offset by 1.
7030 */
7031 phy_idx = cb->args[0] - 1;
7032 } else {
7033 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7034 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7035 nl80211_policy);
7036 if (err)
5fe231e8 7037 goto out_err;
00918d33 7038
2bd7e35d
JB		 7039 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7040 nl80211_fam.attrbuf);
7041 if (IS_ERR(rdev)) {
5fe231e8
JB		 7042 err = PTR_ERR(rdev);
7043 goto out_err;
00918d33 7044 }
2bd7e35d
JB		 7045 phy_idx = rdev->wiphy_idx;
7046 rdev = NULL;
2bd7e35d 7047
71063f0e
WYG		 7048 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7049 cb->args[1] =
7050 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7051 }
7052
7053 if (cb->args[1]) {
7054 data = nla_data((void *)cb->args[1]);
7055 data_len = nla_len((void *)cb->args[1]);
7056 }
7057
00918d33
JB		 7058 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7059 if (!rdev) {
5fe231e8
JB		 7060 err = -ENOENT;
7061 goto out_err;
71063f0e 7062 }
71063f0e 7063
00918d33 7064 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7065 err = -EOPNOTSUPP;
7066 goto out_err;
7067 }
7068
7069 while (1) {
15e47304 7070 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7071 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7072 NL80211_CMD_TESTMODE);
7073 struct nlattr *tmdata;
7074
cb35fba3
DC		 7075 if (!hdr)
7076 break;
7077
9360ffd1 7078 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7079 genlmsg_cancel(skb, hdr);
7080 break;
7081 }
7082
7083 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7084 if (!tmdata) {
7085 genlmsg_cancel(skb, hdr);
7086 break;
7087 }
e35e4d28 7088 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7089 nla_nest_end(skb, tmdata);
7090
7091 if (err == -ENOBUFS || err == -ENOENT) {
7092 genlmsg_cancel(skb, hdr);
7093 break;
7094 } else if (err) {
7095 genlmsg_cancel(skb, hdr);
7096 goto out_err;
7097 }
7098
7099 genlmsg_end(skb, hdr);
7100 }
7101
7102 err = skb->len;
7103 /* see above */
7104 cb->args[0] = phy_idx + 1;
7105 out_err:
5fe231e8 7106 rtnl_unlock();
71063f0e
WYG		 7107 return err;
7108}
aff89a9b
JB		 7109#endif
7110
b23aa676
SO		 7111static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7112{
4c476991
JB		 7113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7114 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7115 struct cfg80211_connect_params connect;
7116 struct wiphy *wiphy;
fffd0934 7117 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7118 int err;
7119
7120 memset(&connect, 0, sizeof(connect));
7121
7122 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7123 return -EINVAL;
7124
7125 if (!info->attrs[NL80211_ATTR_SSID] ||
7126 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7127 return -EINVAL;
7128
7129 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7130 connect.auth_type =
7131 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7132 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7133 NL80211_CMD_CONNECT))
b23aa676
SO		 7134 return -EINVAL;
7135 } else
7136 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7137
7138 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7139
c0692b8f 7140 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7141 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7142 if (err)
7143 return err;
b23aa676 7144
074ac8df 7145 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7146 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7147 return -EOPNOTSUPP;
b23aa676 7148
79c97e97 7149 wiphy = &rdev->wiphy;
b23aa676 7150
4486ea98
BS		 7151 connect.bg_scan_period = -1;
7152 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7153 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7154 connect.bg_scan_period =
7155 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7156 }
7157
b23aa676
SO		 7158 if (info->attrs[NL80211_ATTR_MAC])
7159 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7160 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7161 connect.bssid_hint =
7162 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7163 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7164 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7165
7166 if (info->attrs[NL80211_ATTR_IE]) {
7167 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7168 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7169 }
7170
cee00a95
JM		 7171 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7172 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7173 if (connect.mfp != NL80211_MFP_REQUIRED &&
7174 connect.mfp != NL80211_MFP_NO)
7175 return -EINVAL;
7176 } else {
7177 connect.mfp = NL80211_MFP_NO;
7178 }
7179
b23aa676 7180 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7181 connect.channel = nl80211_get_valid_chan(
7182 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7183 if (!connect.channel)
1df4a510
JM		 7184 return -EINVAL;
7185 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7186 connect.channel_hint = nl80211_get_valid_chan(
7187 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7188 if (!connect.channel_hint)
4c476991 7189 return -EINVAL;
b23aa676
SO		 7190 }
7191
fffd0934
JB		 7192 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7193 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7194 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7195 if (IS_ERR(connkeys))
7196 return PTR_ERR(connkeys);
fffd0934
JB		 7197 }
7198
7e7c8926
BG		 7199 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7200 connect.flags |= ASSOC_REQ_DISABLE_HT;
7201
7202 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7203 memcpy(&connect.ht_capa_mask,
7204 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7205 sizeof(connect.ht_capa_mask));
7206
7207 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 7208 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7209 kfree(connkeys);
7e7c8926 7210 return -EINVAL;
b4e4f47e 7211 }
7e7c8926
BG		 7212 memcpy(&connect.ht_capa,
7213 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7214 sizeof(connect.ht_capa));
7215 }
7216
ee2aca34
JB		 7217 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7218 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7219
7220 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7221 memcpy(&connect.vht_capa_mask,
7222 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7223 sizeof(connect.vht_capa_mask));
7224
7225 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7226 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7227 kfree(connkeys);
7228 return -EINVAL;
7229 }
7230 memcpy(&connect.vht_capa,
7231 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7232 sizeof(connect.vht_capa));
7233 }
7234
83739b03
JB		 7235 wdev_lock(dev->ieee80211_ptr);
7236 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7237 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 7238 if (err)
7239 kfree(connkeys);
b23aa676
SO		 7240 return err;
7241}
7242
7243static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7244{
4c476991
JB		 7245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7246 struct net_device *dev = info->user_ptr[1];
b23aa676 7247 u16 reason;
83739b03 7248 int ret;
b23aa676
SO		 7249
7250 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7251 reason = WLAN_REASON_DEAUTH_LEAVING;
7252 else
7253 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7254
7255 if (reason == 0)
7256 return -EINVAL;
7257
074ac8df 7258 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7259 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7260 return -EOPNOTSUPP;
b23aa676 7261
83739b03
JB		 7262 wdev_lock(dev->ieee80211_ptr);
7263 ret = cfg80211_disconnect(rdev, dev, reason, true);
7264 wdev_unlock(dev->ieee80211_ptr);
7265 return ret;
b23aa676
SO		 7266}
7267
463d0183
JB		 7268static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7269{
4c476991 7270 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7271 struct net *net;
7272 int err;
7273 u32 pid;
7274
7275 if (!info->attrs[NL80211_ATTR_PID])
7276 return -EINVAL;
7277
7278 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7279
463d0183 7280 net = get_net_ns_by_pid(pid);
4c476991
JB		 7281 if (IS_ERR(net))
7282 return PTR_ERR(net);
463d0183
JB		 7283
7284 err = 0;
7285
7286 /* check if anything to do */
4c476991
JB		 7287 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7288 err = cfg80211_switch_netns(rdev, net);
463d0183 7289
463d0183 7290 put_net(net);
463d0183
JB		 7291 return err;
7292}
7293
67fbb16b
SO		 7294static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7295{
4c476991 7296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7297 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7298 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7299 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7300 struct cfg80211_pmksa pmksa;
7301
7302 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7303
7304 if (!info->attrs[NL80211_ATTR_MAC])
7305 return -EINVAL;
7306
7307 if (!info->attrs[NL80211_ATTR_PMKID])
7308 return -EINVAL;
7309
67fbb16b
SO		 7310 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7311 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7312
074ac8df 7313 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7314 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7315 return -EOPNOTSUPP;
67fbb16b
SO		 7316
7317 switch (info->genlhdr->cmd) {
7318 case NL80211_CMD_SET_PMKSA:
7319 rdev_ops = rdev->ops->set_pmksa;
7320 break;
7321 case NL80211_CMD_DEL_PMKSA:
7322 rdev_ops = rdev->ops->del_pmksa;
7323 break;
7324 default:
7325 WARN_ON(1);
7326 break;
7327 }
7328
4c476991
JB		 7329 if (!rdev_ops)
7330 return -EOPNOTSUPP;
67fbb16b 7331
4c476991 7332 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7333}
7334
7335static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7336{
4c476991
JB		 7337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7338 struct net_device *dev = info->user_ptr[1];
67fbb16b 7339
074ac8df 7340 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7341 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7342 return -EOPNOTSUPP;
67fbb16b 7343
4c476991
JB		 7344 if (!rdev->ops->flush_pmksa)
7345 return -EOPNOTSUPP;
67fbb16b 7346
e35e4d28 7347 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7348}
7349
109086ce
AN		 7350static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7351{
7352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7353 struct net_device *dev = info->user_ptr[1];
7354 u8 action_code, dialog_token;
df942e7b 7355 u32 peer_capability = 0;
109086ce
AN		 7356 u16 status_code;
7357 u8 *peer;
31fa97c5 7358 bool initiator;
109086ce
AN		 7359
7360 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7361 !rdev->ops->tdls_mgmt)
7362 return -EOPNOTSUPP;
7363
7364 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7365 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7366 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7367 !info->attrs[NL80211_ATTR_IE] ||
7368 !info->attrs[NL80211_ATTR_MAC])
7369 return -EINVAL;
7370
7371 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7372 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7373 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7374 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7375 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7376 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7377 peer_capability =
7378 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7379
e35e4d28 7380 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7381 dialog_token, status_code, peer_capability,
31fa97c5 7382 initiator,
e35e4d28
HG		 7383 nla_data(info->attrs[NL80211_ATTR_IE]),
7384 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7385}
7386
7387static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7388{
7389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7390 struct net_device *dev = info->user_ptr[1];
7391 enum nl80211_tdls_operation operation;
7392 u8 *peer;
7393
7394 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7395 !rdev->ops->tdls_oper)
7396 return -EOPNOTSUPP;
7397
7398 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7399 !info->attrs[NL80211_ATTR_MAC])
7400 return -EINVAL;
7401
7402 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7403 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7404
e35e4d28 7405 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7406}
7407
9588bbd5
JM		 7408static int nl80211_remain_on_channel(struct sk_buff *skb,
7409 struct genl_info *info)
7410{
4c476991 7411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7412 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7413 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7414 struct sk_buff *msg;
7415 void *hdr;
7416 u64 cookie;
683b6d3b 7417 u32 duration;
9588bbd5
JM		 7418 int err;
7419
7420 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7421 !info->attrs[NL80211_ATTR_DURATION])
7422 return -EINVAL;
7423
7424 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7425
ebf348fc
JB		 7426 if (!rdev->ops->remain_on_channel ||
7427 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7428 return -EOPNOTSUPP;
7429
9588bbd5 7430 /*
ebf348fc
JB		 7431 * We should be on that channel for at least a minimum amount of
7432 * time (10ms) but no longer than the driver supports.
9588bbd5 7433 */
ebf348fc 7434 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7435 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7436 return -EINVAL;
7437
683b6d3b
JB		 7438 err = nl80211_parse_chandef(rdev, info, &chandef);
7439 if (err)
7440 return err;
9588bbd5
JM		 7441
7442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7443 if (!msg)
7444 return -ENOMEM;
9588bbd5 7445
15e47304 7446 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7447 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7448 if (!hdr) {
7449 err = -ENOBUFS;
9588bbd5
JM		 7450 goto free_msg;
7451 }
7452
683b6d3b
JB		 7453 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7454 duration, &cookie);
9588bbd5
JM		 7455
7456 if (err)
7457 goto free_msg;
7458
9360ffd1
DM		 7459 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7460 goto nla_put_failure;
9588bbd5
JM		 7461
7462 genlmsg_end(msg, hdr);
4c476991
JB		 7463
7464 return genlmsg_reply(msg, info);
9588bbd5
JM		 7465
7466 nla_put_failure:
7467 err = -ENOBUFS;
7468 free_msg:
7469 nlmsg_free(msg);
9588bbd5
JM		 7470 return err;
7471}
7472
7473static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7474 struct genl_info *info)
7475{
4c476991 7476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7477 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7478 u64 cookie;
9588bbd5
JM		 7479
7480 if (!info->attrs[NL80211_ATTR_COOKIE])
7481 return -EINVAL;
7482
4c476991
JB		 7483 if (!rdev->ops->cancel_remain_on_channel)
7484 return -EOPNOTSUPP;
9588bbd5 7485
9588bbd5
JM		 7486 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7487
e35e4d28 7488 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7489}
7490
13ae75b1
JM		 7491static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7492 u8 *rates, u8 rates_len)
7493{
7494 u8 i;
7495 u32 mask = 0;
7496
7497 for (i = 0; i < rates_len; i++) {
7498 int rate = (rates[i] & 0x7f) * 5;
7499 int ridx;
7500 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7501 struct ieee80211_rate *srate =
7502 &sband->bitrates[ridx];
7503 if (rate == srate->bitrate) {
7504 mask |= 1 << ridx;
7505 break;
7506 }
7507 }
7508 if (ridx == sband->n_bitrates)
7509 return 0; /* rate not found */
7510 }
7511
7512 return mask;
7513}
7514
24db78c0
SW		 7515static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7516 u8 *rates, u8 rates_len,
7517 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7518{
7519 u8 i;
7520
7521 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7522
7523 for (i = 0; i < rates_len; i++) {
7524 int ridx, rbit;
7525
7526 ridx = rates[i] / 8;
7527 rbit = BIT(rates[i] % 8);
7528
7529 /* check validity */
910570b5 7530 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7531 return false;
7532
7533 /* check availability */
7534 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7535 mcs[ridx] |= rbit;
7536 else
7537 return false;
7538 }
7539
7540 return true;
7541}
7542
204e35a9
JD		 7543static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7544{
7545 u16 mcs_mask = 0;
7546
7547 switch (vht_mcs_map) {
7548 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7549 break;
7550 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7551 mcs_mask = 0x00FF;
7552 break;
7553 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7554 mcs_mask = 0x01FF;
7555 break;
7556 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7557 mcs_mask = 0x03FF;
7558 break;
7559 default:
7560 break;
7561 }
7562
7563 return mcs_mask;
7564}
7565
7566static void vht_build_mcs_mask(u16 vht_mcs_map,
7567 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7568{
7569 u8 nss;
7570
7571 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7572 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7573 vht_mcs_map >>= 2;
7574 }
7575}
7576
7577static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7578 struct nl80211_txrate_vht *txrate,
7579 u16 mcs[NL80211_VHT_NSS_MAX])
7580{
7581 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7582 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7583 u8 i;
7584
7585 if (!sband->vht_cap.vht_supported)
7586 return false;
7587
7588 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7589
7590 /* Build vht_mcs_mask from VHT capabilities */
7591 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7592
7593 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7594 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7595 mcs[i] = txrate->mcs[i];
7596 else
7597 return false;
7598 }
7599
7600 return true;
7601}
7602
b54452b0 7603static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7604 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7605 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7606 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7607 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7608 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7609 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7610};
7611
7612static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7613 struct genl_info *info)
7614{
7615 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7617 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7618 int rem, i;
7619 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7620 struct nlattr *tx_rates;
7621 struct ieee80211_supported_band *sband;
204e35a9 7622 u16 vht_tx_mcs_map;
13ae75b1 7623
4c476991
JB		 7624 if (!rdev->ops->set_bitrate_mask)
7625 return -EOPNOTSUPP;
13ae75b1
JM		 7626
7627 memset(&mask, 0, sizeof(mask));
7628 /* Default to all rates enabled */
7629 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7630 sband = rdev->wiphy.bands[i];
7869303b
JD		 7631
7632 if (!sband)
7633 continue;
7634
7635 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7636 memcpy(mask.control[i].ht_mcs,
7869303b 7637 sband->ht_cap.mcs.rx_mask,
d1e33e65 7638 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7639
7640 if (!sband->vht_cap.vht_supported)
7641 continue;
7642
7643 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7644 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7645 }
7646
b9243ab0
JD		 7647 /* if no rates are given set it back to the defaults */
7648 if (!info->attrs[NL80211_ATTR_TX_RATES])
7649 goto out;
7650
13ae75b1
JM		 7651 /*
7652 * The nested attribute uses enum nl80211_band as the index. This maps
7653 * directly to the enum ieee80211_band values used in cfg80211.
7654 */
24db78c0 7655 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7656 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7657 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7658 int err;
7659
4c476991
JB		 7660 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7661 return -EINVAL;
13ae75b1 7662 sband = rdev->wiphy.bands[band];
4c476991
JB		 7663 if (sband == NULL)
7664 return -EINVAL;
ae811e21
JB		 7665 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7666 nla_len(tx_rates), nl80211_txattr_policy);
7667 if (err)
7668 return err;
13ae75b1
JM		 7669 if (tb[NL80211_TXRATE_LEGACY]) {
7670 mask.control[band].legacy = rateset_to_mask(
7671 sband,
7672 nla_data(tb[NL80211_TXRATE_LEGACY]),
7673 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7674 if ((mask.control[band].legacy == 0) &&
7675 nla_len(tb[NL80211_TXRATE_LEGACY]))
7676 return -EINVAL;
24db78c0 7677 }
d1e33e65 7678 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7679 if (!ht_rateset_to_mask(
7680 sband,
d1e33e65
JD		 7681 nla_data(tb[NL80211_TXRATE_HT]),
7682 nla_len(tb[NL80211_TXRATE_HT]),
7683 mask.control[band].ht_mcs))
24db78c0
SW		 7684 return -EINVAL;
7685 }
204e35a9
JD		 7686 if (tb[NL80211_TXRATE_VHT]) {
7687 if (!vht_set_mcs_mask(
7688 sband,
7689 nla_data(tb[NL80211_TXRATE_VHT]),
7690 mask.control[band].vht_mcs))
7691 return -EINVAL;
7692 }
0b9323f6
JD		 7693 if (tb[NL80211_TXRATE_GI]) {
7694 mask.control[band].gi =
7695 nla_get_u8(tb[NL80211_TXRATE_GI]);
7696 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7697 return -EINVAL;
7698 }
24db78c0
SW		 7699
7700 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7701 /* don't allow empty legacy rates if HT or VHT
7702 * are not even supported.
7703 */
7704 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7705 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7706 return -EINVAL;
7707
7708 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7709 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7710 goto out;
7711
7712 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7713 if (mask.control[band].vht_mcs[i])
7714 goto out;
24db78c0
SW		 7715
7716 /* legacy and mcs rates may not be both empty */
204e35a9 7717 return -EINVAL;
13ae75b1
JM		 7718 }
7719 }
7720
b9243ab0 7721out:
e35e4d28 7722 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7723}
7724
2e161f78 7725static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7726{
4c476991 7727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7728 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7729 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7730
7731 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7732 return -EINVAL;
7733
2e161f78
JB		 7734 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7735 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7736
71bbc994
JB		 7737 switch (wdev->iftype) {
7738 case NL80211_IFTYPE_STATION:
7739 case NL80211_IFTYPE_ADHOC:
7740 case NL80211_IFTYPE_P2P_CLIENT:
7741 case NL80211_IFTYPE_AP:
7742 case NL80211_IFTYPE_AP_VLAN:
7743 case NL80211_IFTYPE_MESH_POINT:
7744 case NL80211_IFTYPE_P2P_GO:
98104fde 7745 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7746 break;
7747 default:
4c476991 7748 return -EOPNOTSUPP;
71bbc994 7749 }
026331c4
JM		 7750
7751 /* not much point in registering if we can't reply */
4c476991
JB		 7752 if (!rdev->ops->mgmt_tx)
7753 return -EOPNOTSUPP;
026331c4 7754
15e47304 7755 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7756 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7757 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7758}
7759
2e161f78 7760static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7761{
4c476991 7762 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7763 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7764 struct cfg80211_chan_def chandef;
026331c4 7765 int err;
d64d373f 7766 void *hdr = NULL;
026331c4 7767 u64 cookie;
e247bd90 7768 struct sk_buff *msg = NULL;
b176e629
AO		 7769 struct cfg80211_mgmt_tx_params params = {
7770 .dont_wait_for_ack =
7771 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7772 };
026331c4 7773
683b6d3b 7774 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7775 return -EINVAL;
7776
4c476991
JB		 7777 if (!rdev->ops->mgmt_tx)
7778 return -EOPNOTSUPP;
026331c4 7779
71bbc994 7780 switch (wdev->iftype) {
ea141b75
AQ		 7781 case NL80211_IFTYPE_P2P_DEVICE:
7782 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7783 return -EINVAL;
71bbc994
JB		 7784 case NL80211_IFTYPE_STATION:
7785 case NL80211_IFTYPE_ADHOC:
7786 case NL80211_IFTYPE_P2P_CLIENT:
7787 case NL80211_IFTYPE_AP:
7788 case NL80211_IFTYPE_AP_VLAN:
7789 case NL80211_IFTYPE_MESH_POINT:
7790 case NL80211_IFTYPE_P2P_GO:
7791 break;
7792 default:
4c476991 7793 return -EOPNOTSUPP;
71bbc994 7794 }
026331c4 7795
f7ca38df 7796 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7797 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7798 return -EINVAL;
b176e629 7799 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7800
7801 /*
7802 * We should wait on the channel for at least a minimum amount
7803 * of time (10ms) but no longer than the driver supports.
7804 */
b176e629
AO		 7805 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7806 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7807 return -EINVAL;
7808
f7ca38df
JB		 7809 }
7810
b176e629 7811 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7812
b176e629 7813 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7814 return -EINVAL;
7815
b176e629 7816 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7817
ea141b75
AQ		 7818 /* get the channel if any has been specified, otherwise pass NULL to
7819 * the driver. The latter will use the current one
7820 */
7821 chandef.chan = NULL;
7822 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7823 err = nl80211_parse_chandef(rdev, info, &chandef);
7824 if (err)
7825 return err;
7826 }
7827
b176e629 7828 if (!chandef.chan && params.offchan)
ea141b75 7829 return -EINVAL;
026331c4 7830
34d22ce2
AO		 7831 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7832 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7833
7834 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7835 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7836 int i;
7837
7838 if (len % sizeof(u16))
7839 return -EINVAL;
7840
7841 params.n_csa_offsets = len / sizeof(u16);
7842 params.csa_offsets =
7843 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7844
7845 /* check that all the offsets fit the frame */
7846 for (i = 0; i < params.n_csa_offsets; i++) {
7847 if (params.csa_offsets[i] >= params.len)
7848 return -EINVAL;
7849 }
7850 }
7851
b176e629 7852 if (!params.dont_wait_for_ack) {
e247bd90
JB		 7853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7854 if (!msg)
7855 return -ENOMEM;
026331c4 7856
15e47304 7857 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7858 NL80211_CMD_FRAME);
cb35fba3
DC		 7859 if (!hdr) {
7860 err = -ENOBUFS;
e247bd90
JB		 7861 goto free_msg;
7862 }
026331c4 7863 }
e247bd90 7864
b176e629
AO		 7865 params.chan = chandef.chan;
7866 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 7867 if (err)
7868 goto free_msg;
7869
e247bd90 7870 if (msg) {
9360ffd1
DM		 7871 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7872 goto nla_put_failure;
026331c4 7873
e247bd90
JB		 7874 genlmsg_end(msg, hdr);
7875 return genlmsg_reply(msg, info);
7876 }
7877
7878 return 0;
026331c4
JM		 7879
7880 nla_put_failure:
7881 err = -ENOBUFS;
7882 free_msg:
7883 nlmsg_free(msg);
026331c4
JM		 7884 return err;
7885}
7886
f7ca38df
JB		 7887static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7888{
7889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7890 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7891 u64 cookie;
7892
7893 if (!info->attrs[NL80211_ATTR_COOKIE])
7894 return -EINVAL;
7895
7896 if (!rdev->ops->mgmt_tx_cancel_wait)
7897 return -EOPNOTSUPP;
7898
71bbc994
JB		 7899 switch (wdev->iftype) {
7900 case NL80211_IFTYPE_STATION:
7901 case NL80211_IFTYPE_ADHOC:
7902 case NL80211_IFTYPE_P2P_CLIENT:
7903 case NL80211_IFTYPE_AP:
7904 case NL80211_IFTYPE_AP_VLAN:
7905 case NL80211_IFTYPE_P2P_GO:
98104fde 7906 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7907 break;
7908 default:
f7ca38df 7909 return -EOPNOTSUPP;
71bbc994 7910 }
f7ca38df
JB		 7911
7912 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7913
e35e4d28 7914 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7915}
7916
ffb9eb3d
KV		 7917static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7918{
4c476991 7919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7920 struct wireless_dev *wdev;
4c476991 7921 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7922 u8 ps_state;
7923 bool state;
7924 int err;
7925
4c476991
JB		 7926 if (!info->attrs[NL80211_ATTR_PS_STATE])
7927 return -EINVAL;
ffb9eb3d
KV		 7928
7929 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7930
4c476991
JB		 7931 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7932 return -EINVAL;
ffb9eb3d
KV		 7933
7934 wdev = dev->ieee80211_ptr;
7935
4c476991
JB		 7936 if (!rdev->ops->set_power_mgmt)
7937 return -EOPNOTSUPP;
ffb9eb3d
KV		 7938
7939 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7940
7941 if (state == wdev->ps)
4c476991 7942 return 0;
ffb9eb3d 7943
e35e4d28 7944 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7945 if (!err)
7946 wdev->ps = state;
ffb9eb3d
KV		 7947 return err;
7948}
7949
7950static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7951{
4c476991 7952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7953 enum nl80211_ps_state ps_state;
7954 struct wireless_dev *wdev;
4c476991 7955 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7956 struct sk_buff *msg;
7957 void *hdr;
7958 int err;
7959
ffb9eb3d
KV		 7960 wdev = dev->ieee80211_ptr;
7961
4c476991
JB		 7962 if (!rdev->ops->set_power_mgmt)
7963 return -EOPNOTSUPP;
ffb9eb3d
KV		 7964
7965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7966 if (!msg)
7967 return -ENOMEM;
ffb9eb3d 7968
15e47304 7969 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7970 NL80211_CMD_GET_POWER_SAVE);
7971 if (!hdr) {
4c476991 7972 err = -ENOBUFS;
ffb9eb3d
KV		 7973 goto free_msg;
7974 }
7975
7976 if (wdev->ps)
7977 ps_state = NL80211_PS_ENABLED;
7978 else
7979 ps_state = NL80211_PS_DISABLED;
7980
9360ffd1
DM		 7981 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7982 goto nla_put_failure;
ffb9eb3d
KV		 7983
7984 genlmsg_end(msg, hdr);
4c476991 7985 return genlmsg_reply(msg, info);
ffb9eb3d 7986
4c476991 7987 nla_put_failure:
ffb9eb3d 7988 err = -ENOBUFS;
4c476991 7989 free_msg:
ffb9eb3d 7990 nlmsg_free(msg);
ffb9eb3d
KV		 7991 return err;
7992}
7993
94e860f1
JB		 7994static const struct nla_policy
7995nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 7996 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7997 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7998 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7999 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8000 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8001 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8002};
8003
84f10708 8004static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8005 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8006{
8007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8008 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8009 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8010
d9d8b019 8011 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8012 return -EINVAL;
8013
84f10708
TP		 8014 if (!rdev->ops->set_cqm_txe_config)
8015 return -EOPNOTSUPP;
8016
8017 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8018 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8019 return -EOPNOTSUPP;
8020
e35e4d28 8021 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8022}
8023
d6dc1a38
JO		 8024static int nl80211_set_cqm_rssi(struct genl_info *info,
8025 s32 threshold, u32 hysteresis)
8026{
4c476991 8027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8028 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8029 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8030
8031 if (threshold > 0)
8032 return -EINVAL;
8033
1da5fcc8
JB		 8034 /* disabling - hysteresis should also be zero then */
8035 if (threshold == 0)
8036 hysteresis = 0;
d6dc1a38 8037
4c476991
JB		 8038 if (!rdev->ops->set_cqm_rssi_config)
8039 return -EOPNOTSUPP;
d6dc1a38 8040
074ac8df 8041 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8042 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8043 return -EOPNOTSUPP;
d6dc1a38 8044
e35e4d28 8045 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8046}
8047
8048static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8049{
8050 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8051 struct nlattr *cqm;
8052 int err;
8053
8054 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8055 if (!cqm)
8056 return -EINVAL;
d6dc1a38
JO		 8057
8058 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8059 nl80211_attr_cqm_policy);
8060 if (err)
1da5fcc8 8061 return err;
d6dc1a38
JO		 8062
8063 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8064 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8065 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8066 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8067
1da5fcc8
JB		 8068 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8069 }
8070
8071 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8072 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8073 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8074 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8075 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8076 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8077
8078 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8079 }
8080
8081 return -EINVAL;
d6dc1a38
JO		 8082}
8083
29cbe68c
JB		 8084static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8085{
8086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8087 struct net_device *dev = info->user_ptr[1];
8088 struct mesh_config cfg;
c80d545d 8089 struct mesh_setup setup;
29cbe68c
JB		 8090 int err;
8091
8092 /* start with default */
8093 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8094 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8095
24bdd9f4 8096 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8097 /* and parse parameters if given */
24bdd9f4 8098 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8099 if (err)
8100 return err;
8101 }
8102
8103 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8104 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8105 return -EINVAL;
8106
c80d545d
JC		 8107 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8108 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8109
4bb62344
CYY		 8110 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8111 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8112 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8113 return -EINVAL;
8114
9bdbf04d
MP		 8115 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8116 setup.beacon_interval =
8117 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8118 if (setup.beacon_interval < 10 ||
8119 setup.beacon_interval > 10000)
8120 return -EINVAL;
8121 }
8122
8123 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8124 setup.dtim_period =
8125 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8126 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8127 return -EINVAL;
8128 }
8129
c80d545d
JC		 8130 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8131 /* parse additional setup parameters if given */
8132 err = nl80211_parse_mesh_setup(info, &setup);
8133 if (err)
8134 return err;
8135 }
8136
d37bb18a
TP		 8137 if (setup.user_mpm)
8138 cfg.auto_open_plinks = false;
8139
cc1d2806 8140 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8141 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8142 if (err)
8143 return err;
cc1d2806
JB		 8144 } else {
8145 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8146 setup.chandef.chan = NULL;
cc1d2806
JB		 8147 }
8148
ffb3cf30
AN		 8149 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8150 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8151 int n_rates =
8152 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8153 struct ieee80211_supported_band *sband;
8154
8155 if (!setup.chandef.chan)
8156 return -EINVAL;
8157
8158 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8159
8160 err = ieee80211_get_ratemask(sband, rates, n_rates,
8161 &setup.basic_rates);
8162 if (err)
8163 return err;
8164 }
8165
c80d545d 8166 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8167}
8168
8169static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8170{
8171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8172 struct net_device *dev = info->user_ptr[1];
8173
8174 return cfg80211_leave_mesh(rdev, dev);
8175}
8176
dfb89c56 8177#ifdef CONFIG_PM
bb92d199
AK		 8178static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8179 struct cfg80211_registered_device *rdev)
8180{
6abb9cb9 8181 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8182 struct nlattr *nl_pats, *nl_pat;
8183 int i, pat_len;
8184
6abb9cb9 8185 if (!wowlan->n_patterns)
bb92d199
AK		 8186 return 0;
8187
8188 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8189 if (!nl_pats)
8190 return -ENOBUFS;
8191
6abb9cb9 8192 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8193 nl_pat = nla_nest_start(msg, i + 1);
8194 if (!nl_pat)
8195 return -ENOBUFS;
6abb9cb9 8196 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8197 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8198 wowlan->patterns[i].mask) ||
50ac6607
AK		 8199 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8200 wowlan->patterns[i].pattern) ||
8201 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8202 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8203 return -ENOBUFS;
8204 nla_nest_end(msg, nl_pat);
8205 }
8206 nla_nest_end(msg, nl_pats);
8207
8208 return 0;
8209}
8210
2a0e047e
JB		 8211static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8212 struct cfg80211_wowlan_tcp *tcp)
8213{
8214 struct nlattr *nl_tcp;
8215
8216 if (!tcp)
8217 return 0;
8218
8219 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8220 if (!nl_tcp)
8221 return -ENOBUFS;
8222
8223 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8224 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8225 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8226 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8227 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8228 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8229 tcp->payload_len, tcp->payload) ||
8230 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8231 tcp->data_interval) ||
8232 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8233 tcp->wake_len, tcp->wake_data) ||
8234 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8235 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8236 return -ENOBUFS;
8237
8238 if (tcp->payload_seq.len &&
8239 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8240 sizeof(tcp->payload_seq), &tcp->payload_seq))
8241 return -ENOBUFS;
8242
8243 if (tcp->payload_tok.len &&
8244 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8245 sizeof(tcp->payload_tok) + tcp->tokens_size,
8246 &tcp->payload_tok))
8247 return -ENOBUFS;
8248
e248ad30
JB		 8249 nla_nest_end(msg, nl_tcp);
8250
2a0e047e
JB		 8251 return 0;
8252}
8253
ff1b6e69
JB		 8254static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8255{
8256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8257 struct sk_buff *msg;
8258 void *hdr;
2a0e047e 8259 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8260
964dc9e2 8261 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8262 return -EOPNOTSUPP;
8263
6abb9cb9 8264 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8265 /* adjust size to have room for all the data */
6abb9cb9
JB		 8266 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8267 rdev->wiphy.wowlan_config->tcp->payload_len +
8268 rdev->wiphy.wowlan_config->tcp->wake_len +
8269 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8270 }
8271
8272 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8273 if (!msg)
8274 return -ENOMEM;
8275
15e47304 8276 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8277 NL80211_CMD_GET_WOWLAN);
8278 if (!hdr)
8279 goto nla_put_failure;
8280
6abb9cb9 8281 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8282 struct nlattr *nl_wowlan;
8283
8284 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8285 if (!nl_wowlan)
8286 goto nla_put_failure;
8287
6abb9cb9 8288 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8289 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8290 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8291 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8292 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8293 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8294 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8295 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8296 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8297 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8298 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8299 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8300 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8301 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8302 goto nla_put_failure;
2a0e047e 8303
bb92d199
AK		 8304 if (nl80211_send_wowlan_patterns(msg, rdev))
8305 goto nla_put_failure;
2a0e047e 8306
6abb9cb9
JB		 8307 if (nl80211_send_wowlan_tcp(msg,
8308 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8309 goto nla_put_failure;
8310
ff1b6e69
JB		 8311 nla_nest_end(msg, nl_wowlan);
8312 }
8313
8314 genlmsg_end(msg, hdr);
8315 return genlmsg_reply(msg, info);
8316
8317nla_put_failure:
8318 nlmsg_free(msg);
8319 return -ENOBUFS;
8320}
8321
2a0e047e
JB		 8322static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8323 struct nlattr *attr,
8324 struct cfg80211_wowlan *trig)
8325{
8326 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8327 struct cfg80211_wowlan_tcp *cfg;
8328 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8329 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8330 u32 size;
8331 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8332 int err, port;
8333
964dc9e2 8334 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8335 return -EINVAL;
8336
8337 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8338 nla_data(attr), nla_len(attr),
8339 nl80211_wowlan_tcp_policy);
8340 if (err)
8341 return err;
8342
8343 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8344 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8345 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8346 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8347 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8348 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8349 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8350 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8351 return -EINVAL;
8352
8353 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8354 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8355 return -EINVAL;
8356
8357 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8358 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8359 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8360 return -EINVAL;
8361
8362 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8363 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8364 return -EINVAL;
8365
8366 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8367 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8368 return -EINVAL;
8369
8370 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8371 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8372
8373 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8374 tokens_size = tokln - sizeof(*tok);
8375
8376 if (!tok->len || tokens_size % tok->len)
8377 return -EINVAL;
964dc9e2 8378 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8379 return -EINVAL;
964dc9e2 8380 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8381 return -EINVAL;
964dc9e2 8382 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8383 return -EINVAL;
964dc9e2 8384 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8385 return -EINVAL;
8386 if (tok->offset + tok->len > data_size)
8387 return -EINVAL;
8388 }
8389
8390 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8391 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8392 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8393 return -EINVAL;
8394 if (seq->len == 0 || seq->len > 4)
8395 return -EINVAL;
8396 if (seq->len + seq->offset > data_size)
8397 return -EINVAL;
8398 }
8399
8400 size = sizeof(*cfg);
8401 size += data_size;
8402 size += wake_size + wake_mask_size;
8403 size += tokens_size;
8404
8405 cfg = kzalloc(size, GFP_KERNEL);
8406 if (!cfg)
8407 return -ENOMEM;
8408 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8409 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8410 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8411 ETH_ALEN);
8412 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8413 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8414 else
8415 port = 0;
8416#ifdef CONFIG_INET
8417 /* allocate a socket and port for it and use it */
8418 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8419 IPPROTO_TCP, &cfg->sock, 1);
8420 if (err) {
8421 kfree(cfg);
8422 return err;
8423 }
8424 if (inet_csk_get_port(cfg->sock->sk, port)) {
8425 sock_release(cfg->sock);
8426 kfree(cfg);
8427 return -EADDRINUSE;
8428 }
8429 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8430#else
8431 if (!port) {
8432 kfree(cfg);
8433 return -EINVAL;
8434 }
8435 cfg->src_port = port;
8436#endif
8437
8438 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8439 cfg->payload_len = data_size;
8440 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8441 memcpy((void *)cfg->payload,
8442 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8443 data_size);
8444 if (seq)
8445 cfg->payload_seq = *seq;
8446 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8447 cfg->wake_len = wake_size;
8448 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8449 memcpy((void *)cfg->wake_data,
8450 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8451 wake_size);
8452 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8453 data_size + wake_size;
8454 memcpy((void *)cfg->wake_mask,
8455 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8456 wake_mask_size);
8457 if (tok) {
8458 cfg->tokens_size = tokens_size;
8459 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8460 }
8461
8462 trig->tcp = cfg;
8463
8464 return 0;
8465}
8466
ff1b6e69
JB		 8467static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8468{
8469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8470 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8471 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8472 struct cfg80211_wowlan *ntrig;
964dc9e2 8473 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8474 int err, i;
6abb9cb9 8475 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8476
964dc9e2 8477 if (!wowlan)
ff1b6e69
JB		 8478 return -EOPNOTSUPP;
8479
ae33bd81
JB		 8480 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8481 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8482 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8483 goto set_wakeup;
8484 }
ff1b6e69
JB		 8485
8486 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8487 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8488 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8489 nl80211_wowlan_policy);
8490 if (err)
8491 return err;
8492
8493 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8494 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8495 return -EINVAL;
8496 new_triggers.any = true;
8497 }
8498
8499 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8500 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8501 return -EINVAL;
8502 new_triggers.disconnect = true;
8503 }
8504
8505 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8506 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8507 return -EINVAL;
8508 new_triggers.magic_pkt = true;
8509 }
8510
77dbbb13
JB		 8511 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8512 return -EINVAL;
8513
8514 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8515 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8516 return -EINVAL;
8517 new_triggers.gtk_rekey_failure = true;
8518 }
8519
8520 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8521 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8522 return -EINVAL;
8523 new_triggers.eap_identity_req = true;
8524 }
8525
8526 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8527 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8528 return -EINVAL;
8529 new_triggers.four_way_handshake = true;
8530 }
8531
8532 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8533 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8534 return -EINVAL;
8535 new_triggers.rfkill_release = true;
8536 }
8537
ff1b6e69
JB		 8538 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8539 struct nlattr *pat;
8540 int n_patterns = 0;
bb92d199 8541 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8542 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8543
8544 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8545 rem)
8546 n_patterns++;
8547 if (n_patterns > wowlan->n_patterns)
8548 return -EINVAL;
8549
8550 new_triggers.patterns = kcalloc(n_patterns,
8551 sizeof(new_triggers.patterns[0]),
8552 GFP_KERNEL);
8553 if (!new_triggers.patterns)
8554 return -ENOMEM;
8555
8556 new_triggers.n_patterns = n_patterns;
8557 i = 0;
8558
8559 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8560 rem) {
922bd80f
JB		 8561 u8 *mask_pat;
8562
50ac6607
AK		 8563 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8564 nla_len(pat), NULL);
ff1b6e69 8565 err = -EINVAL;
50ac6607
AK		 8566 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8567 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8568 goto error;
50ac6607 8569 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8570 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8571 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8572 goto error;
8573 if (pat_len > wowlan->pattern_max_len ||
8574 pat_len < wowlan->pattern_min_len)
8575 goto error;
8576
50ac6607 8577 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8578 pkt_offset = 0;
8579 else
8580 pkt_offset = nla_get_u32(
50ac6607 8581 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8582 if (pkt_offset > wowlan->max_pkt_offset)
8583 goto error;
8584 new_triggers.patterns[i].pkt_offset = pkt_offset;
8585
922bd80f
JB		 8586 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8587 if (!mask_pat) {
ff1b6e69
JB		 8588 err = -ENOMEM;
8589 goto error;
8590 }
922bd80f
JB		 8591 new_triggers.patterns[i].mask = mask_pat;
8592 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8593 mask_len);
922bd80f
JB		 8594 mask_pat += mask_len;
8595 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8596 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8597 memcpy(mask_pat,
50ac6607 8598 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8599 pat_len);
8600 i++;
8601 }
8602 }
8603
2a0e047e
JB		 8604 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8605 err = nl80211_parse_wowlan_tcp(
8606 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8607 &new_triggers);
8608 if (err)
8609 goto error;
8610 }
8611
ae33bd81
JB		 8612 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8613 if (!ntrig) {
8614 err = -ENOMEM;
8615 goto error;
ff1b6e69 8616 }
ae33bd81 8617 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8618 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8619
ae33bd81 8620 set_wakeup:
6abb9cb9
JB		 8621 if (rdev->ops->set_wakeup &&
8622 prev_enabled != !!rdev->wiphy.wowlan_config)
8623 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8624
ff1b6e69
JB		 8625 return 0;
8626 error:
8627 for (i = 0; i < new_triggers.n_patterns; i++)
8628 kfree(new_triggers.patterns[i].mask);
8629 kfree(new_triggers.patterns);
2a0e047e
JB		 8630 if (new_triggers.tcp && new_triggers.tcp->sock)
8631 sock_release(new_triggers.tcp->sock);
8632 kfree(new_triggers.tcp);
ff1b6e69
JB		 8633 return err;
8634}
dfb89c56 8635#endif
ff1b6e69 8636
be29b99a
AK		 8637static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8638 struct cfg80211_registered_device *rdev)
8639{
8640 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8641 int i, j, pat_len;
8642 struct cfg80211_coalesce_rules *rule;
8643
8644 if (!rdev->coalesce->n_rules)
8645 return 0;
8646
8647 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8648 if (!nl_rules)
8649 return -ENOBUFS;
8650
8651 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8652 nl_rule = nla_nest_start(msg, i + 1);
8653 if (!nl_rule)
8654 return -ENOBUFS;
8655
8656 rule = &rdev->coalesce->rules[i];
8657 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8658 rule->delay))
8659 return -ENOBUFS;
8660
8661 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8662 rule->condition))
8663 return -ENOBUFS;
8664
8665 nl_pats = nla_nest_start(msg,
8666 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8667 if (!nl_pats)
8668 return -ENOBUFS;
8669
8670 for (j = 0; j < rule->n_patterns; j++) {
8671 nl_pat = nla_nest_start(msg, j + 1);
8672 if (!nl_pat)
8673 return -ENOBUFS;
8674 pat_len = rule->patterns[j].pattern_len;
8675 if (nla_put(msg, NL80211_PKTPAT_MASK,
8676 DIV_ROUND_UP(pat_len, 8),
8677 rule->patterns[j].mask) ||
8678 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8679 rule->patterns[j].pattern) ||
8680 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8681 rule->patterns[j].pkt_offset))
8682 return -ENOBUFS;
8683 nla_nest_end(msg, nl_pat);
8684 }
8685 nla_nest_end(msg, nl_pats);
8686 nla_nest_end(msg, nl_rule);
8687 }
8688 nla_nest_end(msg, nl_rules);
8689
8690 return 0;
8691}
8692
8693static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8694{
8695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8696 struct sk_buff *msg;
8697 void *hdr;
8698
8699 if (!rdev->wiphy.coalesce)
8700 return -EOPNOTSUPP;
8701
8702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8703 if (!msg)
8704 return -ENOMEM;
8705
8706 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8707 NL80211_CMD_GET_COALESCE);
8708 if (!hdr)
8709 goto nla_put_failure;
8710
8711 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8712 goto nla_put_failure;
8713
8714 genlmsg_end(msg, hdr);
8715 return genlmsg_reply(msg, info);
8716
8717nla_put_failure:
8718 nlmsg_free(msg);
8719 return -ENOBUFS;
8720}
8721
8722void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8723{
8724 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8725 int i, j;
8726 struct cfg80211_coalesce_rules *rule;
8727
8728 if (!coalesce)
8729 return;
8730
8731 for (i = 0; i < coalesce->n_rules; i++) {
8732 rule = &coalesce->rules[i];
8733 for (j = 0; j < rule->n_patterns; j++)
8734 kfree(rule->patterns[j].mask);
8735 kfree(rule->patterns);
8736 }
8737 kfree(coalesce->rules);
8738 kfree(coalesce);
8739 rdev->coalesce = NULL;
8740}
8741
8742static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8743 struct nlattr *rule,
8744 struct cfg80211_coalesce_rules *new_rule)
8745{
8746 int err, i;
8747 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8748 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8749 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8750 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8751
8752 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8753 nla_len(rule), nl80211_coalesce_policy);
8754 if (err)
8755 return err;
8756
8757 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8758 new_rule->delay =
8759 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8760 if (new_rule->delay > coalesce->max_delay)
8761 return -EINVAL;
8762
8763 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8764 new_rule->condition =
8765 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8766 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8767 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8768 return -EINVAL;
8769
8770 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8771 return -EINVAL;
8772
8773 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8774 rem)
8775 n_patterns++;
8776 if (n_patterns > coalesce->n_patterns)
8777 return -EINVAL;
8778
8779 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8780 GFP_KERNEL);
8781 if (!new_rule->patterns)
8782 return -ENOMEM;
8783
8784 new_rule->n_patterns = n_patterns;
8785 i = 0;
8786
8787 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8788 rem) {
922bd80f
JB		 8789 u8 *mask_pat;
8790
be29b99a
AK		 8791 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8792 nla_len(pat), NULL);
8793 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8794 !pat_tb[NL80211_PKTPAT_PATTERN])
8795 return -EINVAL;
8796 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8797 mask_len = DIV_ROUND_UP(pat_len, 8);
8798 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8799 return -EINVAL;
8800 if (pat_len > coalesce->pattern_max_len ||
8801 pat_len < coalesce->pattern_min_len)
8802 return -EINVAL;
8803
8804 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8805 pkt_offset = 0;
8806 else
8807 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8808 if (pkt_offset > coalesce->max_pkt_offset)
8809 return -EINVAL;
8810 new_rule->patterns[i].pkt_offset = pkt_offset;
8811
922bd80f
JB		 8812 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8813 if (!mask_pat)
be29b99a 8814 return -ENOMEM;
922bd80f
JB		 8815
8816 new_rule->patterns[i].mask = mask_pat;
8817 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8818 mask_len);
8819
8820 mask_pat += mask_len;
8821 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8822 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8823 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8824 pat_len);
be29b99a
AK		 8825 i++;
8826 }
8827
8828 return 0;
8829}
8830
8831static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8832{
8833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8834 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8835 struct cfg80211_coalesce new_coalesce = {};
8836 struct cfg80211_coalesce *n_coalesce;
8837 int err, rem_rule, n_rules = 0, i, j;
8838 struct nlattr *rule;
8839 struct cfg80211_coalesce_rules *tmp_rule;
8840
8841 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8842 return -EOPNOTSUPP;
8843
8844 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8845 cfg80211_rdev_free_coalesce(rdev);
8846 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8847 return 0;
8848 }
8849
8850 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8851 rem_rule)
8852 n_rules++;
8853 if (n_rules > coalesce->n_rules)
8854 return -EINVAL;
8855
8856 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8857 GFP_KERNEL);
8858 if (!new_coalesce.rules)
8859 return -ENOMEM;
8860
8861 new_coalesce.n_rules = n_rules;
8862 i = 0;
8863
8864 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8865 rem_rule) {
8866 err = nl80211_parse_coalesce_rule(rdev, rule,
8867 &new_coalesce.rules[i]);
8868 if (err)
8869 goto error;
8870
8871 i++;
8872 }
8873
8874 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8875 if (err)
8876 goto error;
8877
8878 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8879 if (!n_coalesce) {
8880 err = -ENOMEM;
8881 goto error;
8882 }
8883 cfg80211_rdev_free_coalesce(rdev);
8884 rdev->coalesce = n_coalesce;
8885
8886 return 0;
8887error:
8888 for (i = 0; i < new_coalesce.n_rules; i++) {
8889 tmp_rule = &new_coalesce.rules[i];
8890 for (j = 0; j < tmp_rule->n_patterns; j++)
8891 kfree(tmp_rule->patterns[j].mask);
8892 kfree(tmp_rule->patterns);
8893 }
8894 kfree(new_coalesce.rules);
8895
8896 return err;
8897}
8898
e5497d76
JB		 8899static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8900{
8901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8902 struct net_device *dev = info->user_ptr[1];
8903 struct wireless_dev *wdev = dev->ieee80211_ptr;
8904 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8905 struct cfg80211_gtk_rekey_data rekey_data;
8906 int err;
8907
8908 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8909 return -EINVAL;
8910
8911 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8912 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8913 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8914 nl80211_rekey_policy);
8915 if (err)
8916 return err;
8917
8918 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8919 return -ERANGE;
8920 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8921 return -ERANGE;
8922 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8923 return -ERANGE;
8924
8925 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8926 NL80211_KEK_LEN);
8927 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8928 NL80211_KCK_LEN);
8929 memcpy(rekey_data.replay_ctr,
8930 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8931 NL80211_REPLAY_CTR_LEN);
8932
8933 wdev_lock(wdev);
8934 if (!wdev->current_bss) {
8935 err = -ENOTCONN;
8936 goto out;
8937 }
8938
8939 if (!rdev->ops->set_rekey_data) {
8940 err = -EOPNOTSUPP;
8941 goto out;
8942 }
8943
e35e4d28 8944 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8945 out:
8946 wdev_unlock(wdev);
8947 return err;
8948}
8949
28946da7
JB		 8950static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8951 struct genl_info *info)
8952{
8953 struct net_device *dev = info->user_ptr[1];
8954 struct wireless_dev *wdev = dev->ieee80211_ptr;
8955
8956 if (wdev->iftype != NL80211_IFTYPE_AP &&
8957 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8958 return -EINVAL;
8959
15e47304 8960 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8961 return -EBUSY;
8962
15e47304 8963 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8964 return 0;
8965}
8966
7f6cf311
JB		 8967static int nl80211_probe_client(struct sk_buff *skb,
8968 struct genl_info *info)
8969{
8970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8971 struct net_device *dev = info->user_ptr[1];
8972 struct wireless_dev *wdev = dev->ieee80211_ptr;
8973 struct sk_buff *msg;
8974 void *hdr;
8975 const u8 *addr;
8976 u64 cookie;
8977 int err;
8978
8979 if (wdev->iftype != NL80211_IFTYPE_AP &&
8980 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8981 return -EOPNOTSUPP;
8982
8983 if (!info->attrs[NL80211_ATTR_MAC])
8984 return -EINVAL;
8985
8986 if (!rdev->ops->probe_client)
8987 return -EOPNOTSUPP;
8988
8989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8990 if (!msg)
8991 return -ENOMEM;
8992
15e47304 8993 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8994 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8995 if (!hdr) {
8996 err = -ENOBUFS;
7f6cf311
JB		 8997 goto free_msg;
8998 }
8999
9000 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9001
e35e4d28 9002 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9003 if (err)
9004 goto free_msg;
9005
9360ffd1
DM		 9006 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9007 goto nla_put_failure;
7f6cf311
JB		 9008
9009 genlmsg_end(msg, hdr);
9010
9011 return genlmsg_reply(msg, info);
9012
9013 nla_put_failure:
9014 err = -ENOBUFS;
9015 free_msg:
9016 nlmsg_free(msg);
9017 return err;
9018}
9019
5e760230
JB		 9020static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9021{
9022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9023 struct cfg80211_beacon_registration *reg, *nreg;
9024 int rv;
5e760230
JB		 9025
9026 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9027 return -EOPNOTSUPP;
9028
37c73b5f
BG		 9029 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9030 if (!nreg)
9031 return -ENOMEM;
9032
9033 /* First, check if already registered. */
9034 spin_lock_bh(&rdev->beacon_registrations_lock);
9035 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9036 if (reg->nlportid == info->snd_portid) {
9037 rv = -EALREADY;
9038 goto out_err;
9039 }
9040 }
9041 /* Add it to the list */
9042 nreg->nlportid = info->snd_portid;
9043 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9044
37c73b5f 9045 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9046
9047 return 0;
37c73b5f
BG		 9048out_err:
9049 spin_unlock_bh(&rdev->beacon_registrations_lock);
9050 kfree(nreg);
9051 return rv;
5e760230
JB		 9052}
9053
98104fde
JB		 9054static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9055{
9056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9057 struct wireless_dev *wdev = info->user_ptr[1];
9058 int err;
9059
9060 if (!rdev->ops->start_p2p_device)
9061 return -EOPNOTSUPP;
9062
9063 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9064 return -EOPNOTSUPP;
9065
9066 if (wdev->p2p_started)
9067 return 0;
9068
b6a55015
LC		 9069 if (rfkill_blocked(rdev->rfkill))
9070 return -ERFKILL;
98104fde 9071
eeb126e9 9072 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9073 if (err)
9074 return err;
9075
9076 wdev->p2p_started = true;
98104fde 9077 rdev->opencount++;
98104fde
JB		 9078
9079 return 0;
9080}
9081
9082static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9083{
9084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9085 struct wireless_dev *wdev = info->user_ptr[1];
9086
9087 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9088 return -EOPNOTSUPP;
9089
9090 if (!rdev->ops->stop_p2p_device)
9091 return -EOPNOTSUPP;
9092
f9f47529 9093 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9094
9095 return 0;
9096}
9097
3713b4e3
JB		 9098static int nl80211_get_protocol_features(struct sk_buff *skb,
9099 struct genl_info *info)
9100{
9101 void *hdr;
9102 struct sk_buff *msg;
9103
9104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9105 if (!msg)
9106 return -ENOMEM;
9107
9108 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9109 NL80211_CMD_GET_PROTOCOL_FEATURES);
9110 if (!hdr)
9111 goto nla_put_failure;
9112
9113 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9114 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9115 goto nla_put_failure;
9116
9117 genlmsg_end(msg, hdr);
9118 return genlmsg_reply(msg, info);
9119
9120 nla_put_failure:
9121 kfree_skb(msg);
9122 return -ENOBUFS;
9123}
9124
355199e0
JM		 9125static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9126{
9127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9128 struct cfg80211_update_ft_ies_params ft_params;
9129 struct net_device *dev = info->user_ptr[1];
9130
9131 if (!rdev->ops->update_ft_ies)
9132 return -EOPNOTSUPP;
9133
9134 if (!info->attrs[NL80211_ATTR_MDID] ||
9135 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9136 return -EINVAL;
9137
9138 memset(&ft_params, 0, sizeof(ft_params));
9139 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9140 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9141 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9142
9143 return rdev_update_ft_ies(rdev, dev, &ft_params);
9144}
9145
5de17984
AS		 9146static int nl80211_crit_protocol_start(struct sk_buff *skb,
9147 struct genl_info *info)
9148{
9149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9150 struct wireless_dev *wdev = info->user_ptr[1];
9151 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9152 u16 duration;
9153 int ret;
9154
9155 if (!rdev->ops->crit_proto_start)
9156 return -EOPNOTSUPP;
9157
9158 if (WARN_ON(!rdev->ops->crit_proto_stop))
9159 return -EINVAL;
9160
9161 if (rdev->crit_proto_nlportid)
9162 return -EBUSY;
9163
9164 /* determine protocol if provided */
9165 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9166 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9167
9168 if (proto >= NUM_NL80211_CRIT_PROTO)
9169 return -EINVAL;
9170
9171 /* timeout must be provided */
9172 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9173 return -EINVAL;
9174
9175 duration =
9176 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9177
9178 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9179 return -ERANGE;
9180
9181 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9182 if (!ret)
9183 rdev->crit_proto_nlportid = info->snd_portid;
9184
9185 return ret;
9186}
9187
9188static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9189 struct genl_info *info)
9190{
9191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9192 struct wireless_dev *wdev = info->user_ptr[1];
9193
9194 if (!rdev->ops->crit_proto_stop)
9195 return -EOPNOTSUPP;
9196
9197 if (rdev->crit_proto_nlportid) {
9198 rdev->crit_proto_nlportid = 0;
9199 rdev_crit_proto_stop(rdev, wdev);
9200 }
9201 return 0;
9202}
9203
ad7e718c
JB		 9204static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9205{
9206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9207 struct wireless_dev *wdev =
9208 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9209 int i, err;
9210 u32 vid, subcmd;
9211
9212 if (!rdev->wiphy.vendor_commands)
9213 return -EOPNOTSUPP;
9214
9215 if (IS_ERR(wdev)) {
9216 err = PTR_ERR(wdev);
9217 if (err != -EINVAL)
9218 return err;
9219 wdev = NULL;
9220 } else if (wdev->wiphy != &rdev->wiphy) {
9221 return -EINVAL;
9222 }
9223
9224 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9225 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9226 return -EINVAL;
9227
9228 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9229 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9230 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9231 const struct wiphy_vendor_command *vcmd;
9232 void *data = NULL;
9233 int len = 0;
9234
9235 vcmd = &rdev->wiphy.vendor_commands[i];
9236
9237 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9238 continue;
9239
9240 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9241 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9242 if (!wdev)
9243 return -EINVAL;
9244 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9245 !wdev->netdev)
9246 return -EINVAL;
9247
9248 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9249 if (wdev->netdev &&
9250 !netif_running(wdev->netdev))
9251 return -ENETDOWN;
9252 if (!wdev->netdev && !wdev->p2p_started)
9253 return -ENETDOWN;
9254 }
9255 } else {
9256 wdev = NULL;
9257 }
9258
9259 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9260 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9261 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9262 }
9263
9264 rdev->cur_cmd_info = info;
9265 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9266 data, len);
9267 rdev->cur_cmd_info = NULL;
9268 return err;
9269 }
9270
9271 return -EOPNOTSUPP;
9272}
9273
9274struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9275 enum nl80211_commands cmd,
9276 enum nl80211_attrs attr,
9277 int approxlen)
9278{
f26cbf40 9279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9280
9281 if (WARN_ON(!rdev->cur_cmd_info))
9282 return NULL;
9283
9284 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9285 rdev->cur_cmd_info->snd_portid,
9286 rdev->cur_cmd_info->snd_seq,
567ffc35 9287 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9288}
9289EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9290
9291int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9292{
9293 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9294 void *hdr = ((void **)skb->cb)[1];
9295 struct nlattr *data = ((void **)skb->cb)[2];
9296
9297 if (WARN_ON(!rdev->cur_cmd_info)) {
9298 kfree_skb(skb);
9299 return -EINVAL;
9300 }
9301
9302 nla_nest_end(skb, data);
9303 genlmsg_end(skb, hdr);
9304 return genlmsg_reply(skb, rdev->cur_cmd_info);
9305}
9306EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9307
9308
fa9ffc74
KP		 9309static int nl80211_set_qos_map(struct sk_buff *skb,
9310 struct genl_info *info)
9311{
9312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9313 struct cfg80211_qos_map *qos_map = NULL;
9314 struct net_device *dev = info->user_ptr[1];
9315 u8 *pos, len, num_des, des_len, des;
9316 int ret;
9317
9318 if (!rdev->ops->set_qos_map)
9319 return -EOPNOTSUPP;
9320
9321 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9322 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9323 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9324
9325 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9326 len > IEEE80211_QOS_MAP_LEN_MAX)
9327 return -EINVAL;
9328
9329 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9330 if (!qos_map)
9331 return -ENOMEM;
9332
9333 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9334 if (num_des) {
9335 des_len = num_des *
9336 sizeof(struct cfg80211_dscp_exception);
9337 memcpy(qos_map->dscp_exception, pos, des_len);
9338 qos_map->num_des = num_des;
9339 for (des = 0; des < num_des; des++) {
9340 if (qos_map->dscp_exception[des].up > 7) {
9341 kfree(qos_map);
9342 return -EINVAL;
9343 }
9344 }
9345 pos += des_len;
9346 }
9347 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9348 }
9349
9350 wdev_lock(dev->ieee80211_ptr);
9351 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9352 if (!ret)
9353 ret = rdev_set_qos_map(rdev, dev, qos_map);
9354 wdev_unlock(dev->ieee80211_ptr);
9355
9356 kfree(qos_map);
9357 return ret;
9358}
9359
4c476991
JB		 9360#define NL80211_FLAG_NEED_WIPHY 0x01
9361#define NL80211_FLAG_NEED_NETDEV 0x02
9362#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9363#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9364#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9365 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9366#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9367/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9368#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9369 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991 9370
f84f771d 9371static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9372 struct genl_info *info)
9373{
9374 struct cfg80211_registered_device *rdev;
89a54e48 9375 struct wireless_dev *wdev;
4c476991 9376 struct net_device *dev;
4c476991
JB		 9377 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9378
9379 if (rtnl)
9380 rtnl_lock();
9381
9382 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9383 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9384 if (IS_ERR(rdev)) {
9385 if (rtnl)
9386 rtnl_unlock();
9387 return PTR_ERR(rdev);
9388 }
9389 info->user_ptr[0] = rdev;
1bf614ef
JB		 9390 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9391 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9392 ASSERT_RTNL();
9393
89a54e48
JB		 9394 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9395 info->attrs);
9396 if (IS_ERR(wdev)) {
4c476991
JB		 9397 if (rtnl)
9398 rtnl_unlock();
89a54e48 9399 return PTR_ERR(wdev);
4c476991 9400 }
89a54e48 9401
89a54e48 9402 dev = wdev->netdev;
f26cbf40 9403 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9404
1bf614ef
JB		 9405 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9406 if (!dev) {
1bf614ef
JB		 9407 if (rtnl)
9408 rtnl_unlock();
9409 return -EINVAL;
9410 }
9411
9412 info->user_ptr[1] = dev;
9413 } else {
9414 info->user_ptr[1] = wdev;
41265714 9415 }
1bf614ef
JB		 9416
9417 if (dev) {
9418 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9419 !netif_running(dev)) {
1bf614ef
JB		 9420 if (rtnl)
9421 rtnl_unlock();
9422 return -ENETDOWN;
9423 }
9424
9425 dev_hold(dev);
98104fde
JB		 9426 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9427 if (!wdev->p2p_started) {
98104fde
JB		 9428 if (rtnl)
9429 rtnl_unlock();
9430 return -ENETDOWN;
9431 }
41265714 9432 }
89a54e48 9433
4c476991 9434 info->user_ptr[0] = rdev;
4c476991
JB		 9435 }
9436
9437 return 0;
9438}
9439
f84f771d 9440static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9441 struct genl_info *info)
9442{
1bf614ef
JB		 9443 if (info->user_ptr[1]) {
9444 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9445 struct wireless_dev *wdev = info->user_ptr[1];
9446
9447 if (wdev->netdev)
9448 dev_put(wdev->netdev);
9449 } else {
9450 dev_put(info->user_ptr[1]);
9451 }
9452 }
4c476991
JB		 9453 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9454 rtnl_unlock();
9455}
9456
4534de83 9457static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9458 {
9459 .cmd = NL80211_CMD_GET_WIPHY,
9460 .doit = nl80211_get_wiphy,
9461 .dumpit = nl80211_dump_wiphy,
86e8cf98 9462 .done = nl80211_dump_wiphy_done,
55682965
JB		 9463 .policy = nl80211_policy,
9464 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9465 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9466 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9467 },
9468 {
9469 .cmd = NL80211_CMD_SET_WIPHY,
9470 .doit = nl80211_set_wiphy,
9471 .policy = nl80211_policy,
9472 .flags = GENL_ADMIN_PERM,
4c476991 9473 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9474 },
9475 {
9476 .cmd = NL80211_CMD_GET_INTERFACE,
9477 .doit = nl80211_get_interface,
9478 .dumpit = nl80211_dump_interface,
9479 .policy = nl80211_policy,
9480 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9481 .internal_flags = NL80211_FLAG_NEED_WDEV |
9482 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9483 },
9484 {
9485 .cmd = NL80211_CMD_SET_INTERFACE,
9486 .doit = nl80211_set_interface,
9487 .policy = nl80211_policy,
9488 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9489 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9490 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9491 },
9492 {
9493 .cmd = NL80211_CMD_NEW_INTERFACE,
9494 .doit = nl80211_new_interface,
9495 .policy = nl80211_policy,
9496 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9497 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9498 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9499 },
9500 {
9501 .cmd = NL80211_CMD_DEL_INTERFACE,
9502 .doit = nl80211_del_interface,
9503 .policy = nl80211_policy,
41ade00f 9504 .flags = GENL_ADMIN_PERM,
84efbb84 9505 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9506 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9507 },
9508 {
9509 .cmd = NL80211_CMD_GET_KEY,
9510 .doit = nl80211_get_key,
9511 .policy = nl80211_policy,
9512 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9514 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9515 },
9516 {
9517 .cmd = NL80211_CMD_SET_KEY,
9518 .doit = nl80211_set_key,
9519 .policy = nl80211_policy,
9520 .flags = GENL_ADMIN_PERM,
41265714 9521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9522 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9523 },
9524 {
9525 .cmd = NL80211_CMD_NEW_KEY,
9526 .doit = nl80211_new_key,
9527 .policy = nl80211_policy,
9528 .flags = GENL_ADMIN_PERM,
41265714 9529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9530 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9531 },
9532 {
9533 .cmd = NL80211_CMD_DEL_KEY,
9534 .doit = nl80211_del_key,
9535 .policy = nl80211_policy,
55682965 9536 .flags = GENL_ADMIN_PERM,
41265714 9537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9538 NL80211_FLAG_NEED_RTNL,
55682965 9539 },
ed1b6cc7
JB		 9540 {
9541 .cmd = NL80211_CMD_SET_BEACON,
9542 .policy = nl80211_policy,
9543 .flags = GENL_ADMIN_PERM,
8860020e 9544 .doit = nl80211_set_beacon,
2b5f8b0b 9545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9546 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9547 },
9548 {
8860020e 9549 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9550 .policy = nl80211_policy,
9551 .flags = GENL_ADMIN_PERM,
8860020e 9552 .doit = nl80211_start_ap,
2b5f8b0b 9553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9554 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9555 },
9556 {
8860020e 9557 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9558 .policy = nl80211_policy,
9559 .flags = GENL_ADMIN_PERM,
8860020e 9560 .doit = nl80211_stop_ap,
2b5f8b0b 9561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9562 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9563 },
5727ef1b
JB		 9564 {
9565 .cmd = NL80211_CMD_GET_STATION,
9566 .doit = nl80211_get_station,
2ec600d6 9567 .dumpit = nl80211_dump_station,
5727ef1b 9568 .policy = nl80211_policy,
4c476991
JB		 9569 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9570 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9571 },
9572 {
9573 .cmd = NL80211_CMD_SET_STATION,
9574 .doit = nl80211_set_station,
9575 .policy = nl80211_policy,
9576 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9577 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9578 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9579 },
9580 {
9581 .cmd = NL80211_CMD_NEW_STATION,
9582 .doit = nl80211_new_station,
9583 .policy = nl80211_policy,
9584 .flags = GENL_ADMIN_PERM,
41265714 9585 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9586 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9587 },
9588 {
9589 .cmd = NL80211_CMD_DEL_STATION,
9590 .doit = nl80211_del_station,
9591 .policy = nl80211_policy,
2ec600d6 9592 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9593 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9594 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9595 },
9596 {
9597 .cmd = NL80211_CMD_GET_MPATH,
9598 .doit = nl80211_get_mpath,
9599 .dumpit = nl80211_dump_mpath,
9600 .policy = nl80211_policy,
9601 .flags = GENL_ADMIN_PERM,
41265714 9602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9603 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9604 },
9605 {
9606 .cmd = NL80211_CMD_SET_MPATH,
9607 .doit = nl80211_set_mpath,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
41265714 9610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9611 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9612 },
9613 {
9614 .cmd = NL80211_CMD_NEW_MPATH,
9615 .doit = nl80211_new_mpath,
9616 .policy = nl80211_policy,
9617 .flags = GENL_ADMIN_PERM,
41265714 9618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9619 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9620 },
9621 {
9622 .cmd = NL80211_CMD_DEL_MPATH,
9623 .doit = nl80211_del_mpath,
9624 .policy = nl80211_policy,
9f1ba906 9625 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9627 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9628 },
9629 {
9630 .cmd = NL80211_CMD_SET_BSS,
9631 .doit = nl80211_set_bss,
9632 .policy = nl80211_policy,
b2e1b302 9633 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9635 NL80211_FLAG_NEED_RTNL,
b2e1b302 9636 },
f130347c
LR		 9637 {
9638 .cmd = NL80211_CMD_GET_REG,
9639 .doit = nl80211_get_reg,
9640 .policy = nl80211_policy,
5fe231e8 9641 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9642 /* can be retrieved by unprivileged users */
9643 },
b2e1b302
LR		 9644 {
9645 .cmd = NL80211_CMD_SET_REG,
9646 .doit = nl80211_set_reg,
9647 .policy = nl80211_policy,
9648 .flags = GENL_ADMIN_PERM,
5fe231e8 9649 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9650 },
9651 {
9652 .cmd = NL80211_CMD_REQ_SET_REG,
9653 .doit = nl80211_req_set_reg,
9654 .policy = nl80211_policy,
93da9cc1 9655 .flags = GENL_ADMIN_PERM,
9656 },
9657 {
24bdd9f4
JC		 9658 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9659 .doit = nl80211_get_mesh_config,
93da9cc1 9660 .policy = nl80211_policy,
9661 /* can be retrieved by unprivileged users */
2b5f8b0b 9662 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9663 NL80211_FLAG_NEED_RTNL,
93da9cc1 9664 },
9665 {
24bdd9f4
JC		 9666 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9667 .doit = nl80211_update_mesh_config,
93da9cc1 9668 .policy = nl80211_policy,
9aed3cc1 9669 .flags = GENL_ADMIN_PERM,
29cbe68c 9670 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9671 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9672 },
2a519311
JB		 9673 {
9674 .cmd = NL80211_CMD_TRIGGER_SCAN,
9675 .doit = nl80211_trigger_scan,
9676 .policy = nl80211_policy,
9677 .flags = GENL_ADMIN_PERM,
fd014284 9678 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9679 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9680 },
9681 {
9682 .cmd = NL80211_CMD_GET_SCAN,
9683 .policy = nl80211_policy,
9684 .dumpit = nl80211_dump_scan,
9685 },
807f8a8c
LC		 9686 {
9687 .cmd = NL80211_CMD_START_SCHED_SCAN,
9688 .doit = nl80211_start_sched_scan,
9689 .policy = nl80211_policy,
9690 .flags = GENL_ADMIN_PERM,
9691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9692 NL80211_FLAG_NEED_RTNL,
9693 },
9694 {
9695 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9696 .doit = nl80211_stop_sched_scan,
9697 .policy = nl80211_policy,
9698 .flags = GENL_ADMIN_PERM,
9699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9700 NL80211_FLAG_NEED_RTNL,
9701 },
636a5d36
JM		 9702 {
9703 .cmd = NL80211_CMD_AUTHENTICATE,
9704 .doit = nl80211_authenticate,
9705 .policy = nl80211_policy,
9706 .flags = GENL_ADMIN_PERM,
41265714 9707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9708 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9709 },
9710 {
9711 .cmd = NL80211_CMD_ASSOCIATE,
9712 .doit = nl80211_associate,
9713 .policy = nl80211_policy,
9714 .flags = GENL_ADMIN_PERM,
41265714 9715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9716 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9717 },
9718 {
9719 .cmd = NL80211_CMD_DEAUTHENTICATE,
9720 .doit = nl80211_deauthenticate,
9721 .policy = nl80211_policy,
9722 .flags = GENL_ADMIN_PERM,
41265714 9723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9724 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9725 },
9726 {
9727 .cmd = NL80211_CMD_DISASSOCIATE,
9728 .doit = nl80211_disassociate,
9729 .policy = nl80211_policy,
9730 .flags = GENL_ADMIN_PERM,
41265714 9731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9732 NL80211_FLAG_NEED_RTNL,
636a5d36 9733 },
04a773ad
JB		 9734 {
9735 .cmd = NL80211_CMD_JOIN_IBSS,
9736 .doit = nl80211_join_ibss,
9737 .policy = nl80211_policy,
9738 .flags = GENL_ADMIN_PERM,
41265714 9739 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9740 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9741 },
9742 {
9743 .cmd = NL80211_CMD_LEAVE_IBSS,
9744 .doit = nl80211_leave_ibss,
9745 .policy = nl80211_policy,
9746 .flags = GENL_ADMIN_PERM,
41265714 9747 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9748 NL80211_FLAG_NEED_RTNL,
04a773ad 9749 },
aff89a9b
JB		 9750#ifdef CONFIG_NL80211_TESTMODE
9751 {
9752 .cmd = NL80211_CMD_TESTMODE,
9753 .doit = nl80211_testmode_do,
71063f0e 9754 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9755 .policy = nl80211_policy,
9756 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9757 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9758 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9759 },
9760#endif
b23aa676
SO		 9761 {
9762 .cmd = NL80211_CMD_CONNECT,
9763 .doit = nl80211_connect,
9764 .policy = nl80211_policy,
9765 .flags = GENL_ADMIN_PERM,
41265714 9766 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9767 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9768 },
9769 {
9770 .cmd = NL80211_CMD_DISCONNECT,
9771 .doit = nl80211_disconnect,
9772 .policy = nl80211_policy,
9773 .flags = GENL_ADMIN_PERM,
41265714 9774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9775 NL80211_FLAG_NEED_RTNL,
b23aa676 9776 },
463d0183
JB		 9777 {
9778 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9779 .doit = nl80211_wiphy_netns,
9780 .policy = nl80211_policy,
9781 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9782 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9783 NL80211_FLAG_NEED_RTNL,
463d0183 9784 },
61fa713c
HS		 9785 {
9786 .cmd = NL80211_CMD_GET_SURVEY,
9787 .policy = nl80211_policy,
9788 .dumpit = nl80211_dump_survey,
9789 },
67fbb16b
SO		 9790 {
9791 .cmd = NL80211_CMD_SET_PMKSA,
9792 .doit = nl80211_setdel_pmksa,
9793 .policy = nl80211_policy,
9794 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9796 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9797 },
9798 {
9799 .cmd = NL80211_CMD_DEL_PMKSA,
9800 .doit = nl80211_setdel_pmksa,
9801 .policy = nl80211_policy,
9802 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9804 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9805 },
9806 {
9807 .cmd = NL80211_CMD_FLUSH_PMKSA,
9808 .doit = nl80211_flush_pmksa,
9809 .policy = nl80211_policy,
9810 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9812 NL80211_FLAG_NEED_RTNL,
67fbb16b 9813 },
9588bbd5
JM		 9814 {
9815 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9816 .doit = nl80211_remain_on_channel,
9817 .policy = nl80211_policy,
9818 .flags = GENL_ADMIN_PERM,
71bbc994 9819 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9820 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9821 },
9822 {
9823 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9824 .doit = nl80211_cancel_remain_on_channel,
9825 .policy = nl80211_policy,
9826 .flags = GENL_ADMIN_PERM,
71bbc994 9827 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9828 NL80211_FLAG_NEED_RTNL,
9588bbd5 9829 },
13ae75b1
JM		 9830 {
9831 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9832 .doit = nl80211_set_tx_bitrate_mask,
9833 .policy = nl80211_policy,
9834 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9835 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9836 NL80211_FLAG_NEED_RTNL,
13ae75b1 9837 },
026331c4 9838 {
2e161f78
JB		 9839 .cmd = NL80211_CMD_REGISTER_FRAME,
9840 .doit = nl80211_register_mgmt,
026331c4
JM		 9841 .policy = nl80211_policy,
9842 .flags = GENL_ADMIN_PERM,
71bbc994 9843 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9844 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9845 },
9846 {
2e161f78
JB		 9847 .cmd = NL80211_CMD_FRAME,
9848 .doit = nl80211_tx_mgmt,
026331c4 9849 .policy = nl80211_policy,
f7ca38df 9850 .flags = GENL_ADMIN_PERM,
71bbc994 9851 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9852 NL80211_FLAG_NEED_RTNL,
9853 },
9854 {
9855 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9856 .doit = nl80211_tx_mgmt_cancel_wait,
9857 .policy = nl80211_policy,
026331c4 9858 .flags = GENL_ADMIN_PERM,
71bbc994 9859 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9860 NL80211_FLAG_NEED_RTNL,
026331c4 9861 },
ffb9eb3d
KV		 9862 {
9863 .cmd = NL80211_CMD_SET_POWER_SAVE,
9864 .doit = nl80211_set_power_save,
9865 .policy = nl80211_policy,
9866 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9867 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9868 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9869 },
9870 {
9871 .cmd = NL80211_CMD_GET_POWER_SAVE,
9872 .doit = nl80211_get_power_save,
9873 .policy = nl80211_policy,
9874 /* can be retrieved by unprivileged users */
4c476991
JB		 9875 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9876 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9877 },
d6dc1a38
JO		 9878 {
9879 .cmd = NL80211_CMD_SET_CQM,
9880 .doit = nl80211_set_cqm,
9881 .policy = nl80211_policy,
9882 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9883 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9884 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9885 },
f444de05
JB		 9886 {
9887 .cmd = NL80211_CMD_SET_CHANNEL,
9888 .doit = nl80211_set_channel,
9889 .policy = nl80211_policy,
9890 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9891 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9892 NL80211_FLAG_NEED_RTNL,
f444de05 9893 },
e8347eba
BJ		 9894 {
9895 .cmd = NL80211_CMD_SET_WDS_PEER,
9896 .doit = nl80211_set_wds_peer,
9897 .policy = nl80211_policy,
9898 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9899 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9900 NL80211_FLAG_NEED_RTNL,
e8347eba 9901 },
29cbe68c
JB		 9902 {
9903 .cmd = NL80211_CMD_JOIN_MESH,
9904 .doit = nl80211_join_mesh,
9905 .policy = nl80211_policy,
9906 .flags = GENL_ADMIN_PERM,
9907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9908 NL80211_FLAG_NEED_RTNL,
9909 },
9910 {
9911 .cmd = NL80211_CMD_LEAVE_MESH,
9912 .doit = nl80211_leave_mesh,
9913 .policy = nl80211_policy,
9914 .flags = GENL_ADMIN_PERM,
9915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9916 NL80211_FLAG_NEED_RTNL,
9917 },
dfb89c56 9918#ifdef CONFIG_PM
ff1b6e69
JB		 9919 {
9920 .cmd = NL80211_CMD_GET_WOWLAN,
9921 .doit = nl80211_get_wowlan,
9922 .policy = nl80211_policy,
9923 /* can be retrieved by unprivileged users */
9924 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9925 NL80211_FLAG_NEED_RTNL,
9926 },
9927 {
9928 .cmd = NL80211_CMD_SET_WOWLAN,
9929 .doit = nl80211_set_wowlan,
9930 .policy = nl80211_policy,
9931 .flags = GENL_ADMIN_PERM,
9932 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9933 NL80211_FLAG_NEED_RTNL,
9934 },
dfb89c56 9935#endif
e5497d76
JB		 9936 {
9937 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9938 .doit = nl80211_set_rekey_data,
9939 .policy = nl80211_policy,
9940 .flags = GENL_ADMIN_PERM,
9941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9942 NL80211_FLAG_NEED_RTNL,
9943 },
109086ce
AN		 9944 {
9945 .cmd = NL80211_CMD_TDLS_MGMT,
9946 .doit = nl80211_tdls_mgmt,
9947 .policy = nl80211_policy,
9948 .flags = GENL_ADMIN_PERM,
9949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9950 NL80211_FLAG_NEED_RTNL,
9951 },
9952 {
9953 .cmd = NL80211_CMD_TDLS_OPER,
9954 .doit = nl80211_tdls_oper,
9955 .policy = nl80211_policy,
9956 .flags = GENL_ADMIN_PERM,
9957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9958 NL80211_FLAG_NEED_RTNL,
9959 },
28946da7
JB		 9960 {
9961 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9962 .doit = nl80211_register_unexpected_frame,
9963 .policy = nl80211_policy,
9964 .flags = GENL_ADMIN_PERM,
9965 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9966 NL80211_FLAG_NEED_RTNL,
9967 },
7f6cf311
JB		 9968 {
9969 .cmd = NL80211_CMD_PROBE_CLIENT,
9970 .doit = nl80211_probe_client,
9971 .policy = nl80211_policy,
9972 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9974 NL80211_FLAG_NEED_RTNL,
9975 },
5e760230
JB		 9976 {
9977 .cmd = NL80211_CMD_REGISTER_BEACONS,
9978 .doit = nl80211_register_beacons,
9979 .policy = nl80211_policy,
9980 .flags = GENL_ADMIN_PERM,
9981 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9982 NL80211_FLAG_NEED_RTNL,
9983 },
1d9d9213
SW		 9984 {
9985 .cmd = NL80211_CMD_SET_NOACK_MAP,
9986 .doit = nl80211_set_noack_map,
9987 .policy = nl80211_policy,
9988 .flags = GENL_ADMIN_PERM,
9989 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9990 NL80211_FLAG_NEED_RTNL,
9991 },
98104fde
JB		 9992 {
9993 .cmd = NL80211_CMD_START_P2P_DEVICE,
9994 .doit = nl80211_start_p2p_device,
9995 .policy = nl80211_policy,
9996 .flags = GENL_ADMIN_PERM,
9997 .internal_flags = NL80211_FLAG_NEED_WDEV |
9998 NL80211_FLAG_NEED_RTNL,
9999 },
10000 {
10001 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10002 .doit = nl80211_stop_p2p_device,
10003 .policy = nl80211_policy,
10004 .flags = GENL_ADMIN_PERM,
10005 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10006 NL80211_FLAG_NEED_RTNL,
10007 },
f4e583c8
AQ		 10008 {
10009 .cmd = NL80211_CMD_SET_MCAST_RATE,
10010 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10011 .policy = nl80211_policy,
10012 .flags = GENL_ADMIN_PERM,
10013 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10014 NL80211_FLAG_NEED_RTNL,
10015 },
10016 {
10017 .cmd = NL80211_CMD_SET_MAC_ACL,
10018 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10019 .policy = nl80211_policy,
10020 .flags = GENL_ADMIN_PERM,
10021 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10022 NL80211_FLAG_NEED_RTNL,
10023 },
04f39047
SW		 10024 {
10025 .cmd = NL80211_CMD_RADAR_DETECT,
10026 .doit = nl80211_start_radar_detection,
10027 .policy = nl80211_policy,
10028 .flags = GENL_ADMIN_PERM,
10029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10030 NL80211_FLAG_NEED_RTNL,
10031 },
3713b4e3
JB		 10032 {
10033 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10034 .doit = nl80211_get_protocol_features,
10035 .policy = nl80211_policy,
10036 },
355199e0
JM		 10037 {
10038 .cmd = NL80211_CMD_UPDATE_FT_IES,
10039 .doit = nl80211_update_ft_ies,
10040 .policy = nl80211_policy,
10041 .flags = GENL_ADMIN_PERM,
10042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10043 NL80211_FLAG_NEED_RTNL,
10044 },
5de17984
AS		 10045 {
10046 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10047 .doit = nl80211_crit_protocol_start,
10048 .policy = nl80211_policy,
10049 .flags = GENL_ADMIN_PERM,
10050 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10051 NL80211_FLAG_NEED_RTNL,
10052 },
10053 {
10054 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10055 .doit = nl80211_crit_protocol_stop,
10056 .policy = nl80211_policy,
10057 .flags = GENL_ADMIN_PERM,
10058 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10059 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10060 },
10061 {
10062 .cmd = NL80211_CMD_GET_COALESCE,
10063 .doit = nl80211_get_coalesce,
10064 .policy = nl80211_policy,
10065 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10066 NL80211_FLAG_NEED_RTNL,
10067 },
10068 {
10069 .cmd = NL80211_CMD_SET_COALESCE,
10070 .doit = nl80211_set_coalesce,
10071 .policy = nl80211_policy,
10072 .flags = GENL_ADMIN_PERM,
10073 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10074 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10075 },
10076 {
10077 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10078 .doit = nl80211_channel_switch,
10079 .policy = nl80211_policy,
10080 .flags = GENL_ADMIN_PERM,
10081 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10082 NL80211_FLAG_NEED_RTNL,
10083 },
ad7e718c
JB		 10084 {
10085 .cmd = NL80211_CMD_VENDOR,
10086 .doit = nl80211_vendor_cmd,
10087 .policy = nl80211_policy,
10088 .flags = GENL_ADMIN_PERM,
10089 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10090 NL80211_FLAG_NEED_RTNL,
10091 },
fa9ffc74
KP		 10092 {
10093 .cmd = NL80211_CMD_SET_QOS_MAP,
10094 .doit = nl80211_set_qos_map,
10095 .policy = nl80211_policy,
10096 .flags = GENL_ADMIN_PERM,
10097 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10098 NL80211_FLAG_NEED_RTNL,
10099 },
55682965 10100};
9588bbd5 10101
55682965
JB		 10102/* notification functions */
10103
3bb20556
JB		 10104void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10105 enum nl80211_commands cmd)
55682965
JB		 10106{
10107 struct sk_buff *msg;
86e8cf98 10108 struct nl80211_dump_wiphy_state state = {};
55682965 10109
3bb20556
JB		 10110 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10111 cmd != NL80211_CMD_DEL_WIPHY);
10112
fd2120ca 10113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10114 if (!msg)
10115 return;
10116
3bb20556 10117 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10118 nlmsg_free(msg);
10119 return;
10120 }
10121
68eb5503 10122 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10123 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10124}
10125
362a415d
JB		 10126static int nl80211_add_scan_req(struct sk_buff *msg,
10127 struct cfg80211_registered_device *rdev)
10128{
10129 struct cfg80211_scan_request *req = rdev->scan_req;
10130 struct nlattr *nest;
10131 int i;
10132
10133 if (WARN_ON(!req))
10134 return 0;
10135
10136 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10137 if (!nest)
10138 goto nla_put_failure;
9360ffd1
DM		 10139 for (i = 0; i < req->n_ssids; i++) {
10140 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10141 goto nla_put_failure;
10142 }
362a415d
JB		 10143 nla_nest_end(msg, nest);
10144
10145 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10146 if (!nest)
10147 goto nla_put_failure;
9360ffd1
DM		 10148 for (i = 0; i < req->n_channels; i++) {
10149 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10150 goto nla_put_failure;
10151 }
362a415d
JB		 10152 nla_nest_end(msg, nest);
10153
9360ffd1
DM		 10154 if (req->ie &&
10155 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10156 goto nla_put_failure;
362a415d 10157
ae917c9f
JB		 10158 if (req->flags &&
10159 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10160 goto nla_put_failure;
ed473771 10161
362a415d
JB		 10162 return 0;
10163 nla_put_failure:
10164 return -ENOBUFS;
10165}
10166
a538e2d5
JB		 10167static int nl80211_send_scan_msg(struct sk_buff *msg,
10168 struct cfg80211_registered_device *rdev,
fd014284 10169 struct wireless_dev *wdev,
15e47304 10170 u32 portid, u32 seq, int flags,
a538e2d5 10171 u32 cmd)
2a519311
JB		 10172{
10173 void *hdr;
10174
15e47304 10175 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10176 if (!hdr)
10177 return -1;
10178
9360ffd1 10179 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10180 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10181 wdev->netdev->ifindex)) ||
10182 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10183 goto nla_put_failure;
2a519311 10184
362a415d
JB		 10185 /* ignore errors and send incomplete event anyway */
10186 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10187
10188 return genlmsg_end(msg, hdr);
10189
10190 nla_put_failure:
10191 genlmsg_cancel(msg, hdr);
10192 return -EMSGSIZE;
10193}
10194
807f8a8c
LC		 10195static int
10196nl80211_send_sched_scan_msg(struct sk_buff *msg,
10197 struct cfg80211_registered_device *rdev,
10198 struct net_device *netdev,
15e47304 10199 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10200{
10201 void *hdr;
10202
15e47304 10203 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10204 if (!hdr)
10205 return -1;
10206
9360ffd1
DM		 10207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10208 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10209 goto nla_put_failure;
807f8a8c
LC		 10210
10211 return genlmsg_end(msg, hdr);
10212
10213 nla_put_failure:
10214 genlmsg_cancel(msg, hdr);
10215 return -EMSGSIZE;
10216}
10217
a538e2d5 10218void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10219 struct wireless_dev *wdev)
a538e2d5
JB		 10220{
10221 struct sk_buff *msg;
10222
58050fce 10223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10224 if (!msg)
10225 return;
10226
fd014284 10227 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10228 NL80211_CMD_TRIGGER_SCAN) < 0) {
10229 nlmsg_free(msg);
10230 return;
10231 }
10232
68eb5503 10233 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10234 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10235}
10236
f9d15d16
JB		 10237struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10238 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10239{
10240 struct sk_buff *msg;
10241
fd2120ca 10242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10243 if (!msg)
f9d15d16 10244 return NULL;
2a519311 10245
fd014284 10246 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10247 aborted ? NL80211_CMD_SCAN_ABORTED :
10248 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10249 nlmsg_free(msg);
f9d15d16 10250 return NULL;
2a519311
JB		 10251 }
10252
f9d15d16 10253 return msg;
2a519311
JB		 10254}
10255
f9d15d16
JB		 10256void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10257 struct sk_buff *msg)
2a519311 10258{
2a519311
JB		 10259 if (!msg)
10260 return;
10261
68eb5503 10262 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10263 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10264}
10265
807f8a8c
LC		 10266void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10267 struct net_device *netdev)
10268{
10269 struct sk_buff *msg;
10270
10271 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10272 if (!msg)
10273 return;
10274
10275 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10276 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10277 nlmsg_free(msg);
10278 return;
10279 }
10280
68eb5503 10281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10282 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10283}
10284
10285void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10286 struct net_device *netdev, u32 cmd)
10287{
10288 struct sk_buff *msg;
10289
58050fce 10290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10291 if (!msg)
10292 return;
10293
10294 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10295 nlmsg_free(msg);
10296 return;
10297 }
10298
68eb5503 10299 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10300 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10301}
10302
73d54c9e
LR		 10303/*
10304 * This can happen on global regulatory changes or device specific settings
10305 * based on custom world regulatory domains.
10306 */
10307void nl80211_send_reg_change_event(struct regulatory_request *request)
10308{
10309 struct sk_buff *msg;
10310 void *hdr;
10311
fd2120ca 10312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10313 if (!msg)
10314 return;
10315
10316 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10317 if (!hdr) {
10318 nlmsg_free(msg);
10319 return;
10320 }
10321
10322 /* Userspace can always count this one always being set */
9360ffd1
DM		 10323 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10324 goto nla_put_failure;
10325
10326 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10327 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10328 NL80211_REGDOM_TYPE_WORLD))
10329 goto nla_put_failure;
10330 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10331 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10332 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10333 goto nla_put_failure;
10334 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10335 request->intersect) {
10336 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10337 NL80211_REGDOM_TYPE_INTERSECTION))
10338 goto nla_put_failure;
10339 } else {
10340 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10341 NL80211_REGDOM_TYPE_COUNTRY) ||
10342 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10343 request->alpha2))
10344 goto nla_put_failure;
10345 }
10346
f4173766 10347 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10348 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10349 goto nla_put_failure;
73d54c9e 10350
3b7b72ee 10351 genlmsg_end(msg, hdr);
73d54c9e 10352
bc43b28c 10353 rcu_read_lock();
68eb5503 10354 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10355 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10356 rcu_read_unlock();
73d54c9e
LR		 10357
10358 return;
10359
10360nla_put_failure:
10361 genlmsg_cancel(msg, hdr);
10362 nlmsg_free(msg);
10363}
10364
6039f6d2
JM		 10365static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10366 struct net_device *netdev,
10367 const u8 *buf, size_t len,
e6d6e342 10368 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 10369{
10370 struct sk_buff *msg;
10371 void *hdr;
10372
e6d6e342 10373 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10374 if (!msg)
10375 return;
10376
10377 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10378 if (!hdr) {
10379 nlmsg_free(msg);
10380 return;
10381 }
10382
9360ffd1
DM		 10383 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10384 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10385 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10386 goto nla_put_failure;
6039f6d2 10387
3b7b72ee 10388 genlmsg_end(msg, hdr);
6039f6d2 10389
68eb5503 10390 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10391 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10392 return;
10393
10394 nla_put_failure:
10395 genlmsg_cancel(msg, hdr);
10396 nlmsg_free(msg);
10397}
10398
10399void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10400 struct net_device *netdev, const u8 *buf,
10401 size_t len, gfp_t gfp)
6039f6d2
JM		 10402{
10403 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10404 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 10405}
10406
10407void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10408 struct net_device *netdev, const u8 *buf,
e6d6e342 10409 size_t len, gfp_t gfp)
6039f6d2 10410{
e6d6e342
JB		 10411 nl80211_send_mlme_event(rdev, netdev, buf, len,
10412 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 10413}
10414
53b46b84 10415void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10416 struct net_device *netdev, const u8 *buf,
10417 size_t len, gfp_t gfp)
6039f6d2
JM		 10418{
10419 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10420 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 10421}
10422
53b46b84
JM		 10423void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10424 struct net_device *netdev, const u8 *buf,
e6d6e342 10425 size_t len, gfp_t gfp)
6039f6d2
JM		 10426{
10427 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 10428 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 10429}
10430
6ff57cf8
JB		 10431void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10432 size_t len)
cf4e594e 10433{
947add36
JB		 10434 struct wireless_dev *wdev = dev->ieee80211_ptr;
10435 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10436 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10437 const struct ieee80211_mgmt *mgmt = (void *)buf;
10438 u32 cmd;
947add36 10439
6ff57cf8
JB		 10440 if (WARN_ON(len < 2))
10441 return;
cf4e594e 10442
6ff57cf8
JB		 10443 if (ieee80211_is_deauth(mgmt->frame_control))
10444 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10445 else
10446 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10447
6ff57cf8
JB		 10448 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10449 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 10450}
6ff57cf8 10451EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10452
1b06bb40
LR		 10453static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10454 struct net_device *netdev, int cmd,
e6d6e342 10455 const u8 *addr, gfp_t gfp)
1965c853
JM		 10456{
10457 struct sk_buff *msg;
10458 void *hdr;
10459
e6d6e342 10460 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10461 if (!msg)
10462 return;
10463
10464 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10465 if (!hdr) {
10466 nlmsg_free(msg);
10467 return;
10468 }
10469
9360ffd1
DM		 10470 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10471 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10472 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10473 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10474 goto nla_put_failure;
1965c853 10475
3b7b72ee 10476 genlmsg_end(msg, hdr);
1965c853 10477
68eb5503 10478 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10479 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10480 return;
10481
10482 nla_put_failure:
10483 genlmsg_cancel(msg, hdr);
10484 nlmsg_free(msg);
10485}
10486
10487void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10488 struct net_device *netdev, const u8 *addr,
10489 gfp_t gfp)
1965c853
JM		 10490{
10491 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10492 addr, gfp);
1965c853
JM		 10493}
10494
10495void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10496 struct net_device *netdev, const u8 *addr,
10497 gfp_t gfp)
1965c853 10498{
e6d6e342
JB		 10499 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10500 addr, gfp);
1965c853
JM		 10501}
10502
b23aa676
SO		 10503void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10504 struct net_device *netdev, const u8 *bssid,
10505 const u8 *req_ie, size_t req_ie_len,
10506 const u8 *resp_ie, size_t resp_ie_len,
10507 u16 status, gfp_t gfp)
10508{
10509 struct sk_buff *msg;
10510 void *hdr;
10511
58050fce 10512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10513 if (!msg)
10514 return;
10515
10516 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10517 if (!hdr) {
10518 nlmsg_free(msg);
10519 return;
10520 }
10521
9360ffd1
DM		 10522 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10523 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10524 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10525 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10526 (req_ie &&
10527 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10528 (resp_ie &&
10529 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10530 goto nla_put_failure;
b23aa676 10531
3b7b72ee 10532 genlmsg_end(msg, hdr);
b23aa676 10533
68eb5503 10534 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10535 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10536 return;
10537
10538 nla_put_failure:
10539 genlmsg_cancel(msg, hdr);
10540 nlmsg_free(msg);
10541
10542}
10543
10544void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10545 struct net_device *netdev, const u8 *bssid,
10546 const u8 *req_ie, size_t req_ie_len,
10547 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10548{
10549 struct sk_buff *msg;
10550 void *hdr;
10551
58050fce 10552 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10553 if (!msg)
10554 return;
10555
10556 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10557 if (!hdr) {
10558 nlmsg_free(msg);
10559 return;
10560 }
10561
9360ffd1
DM		 10562 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10563 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10564 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10565 (req_ie &&
10566 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10567 (resp_ie &&
10568 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10569 goto nla_put_failure;
b23aa676 10570
3b7b72ee 10571 genlmsg_end(msg, hdr);
b23aa676 10572
68eb5503 10573 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10574 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10575 return;
10576
10577 nla_put_failure:
10578 genlmsg_cancel(msg, hdr);
10579 nlmsg_free(msg);
10580
10581}
10582
10583void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10584 struct net_device *netdev, u16 reason,
667503dd 10585 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10586{
10587 struct sk_buff *msg;
10588 void *hdr;
10589
58050fce 10590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10591 if (!msg)
10592 return;
10593
10594 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10595 if (!hdr) {
10596 nlmsg_free(msg);
10597 return;
10598 }
10599
9360ffd1
DM		 10600 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10601 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10602 (from_ap && reason &&
10603 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10604 (from_ap &&
10605 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10606 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10607 goto nla_put_failure;
b23aa676 10608
3b7b72ee 10609 genlmsg_end(msg, hdr);
b23aa676 10610
68eb5503 10611 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10612 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10613 return;
10614
10615 nla_put_failure:
10616 genlmsg_cancel(msg, hdr);
10617 nlmsg_free(msg);
10618
10619}
10620
04a773ad
JB		 10621void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10622 struct net_device *netdev, const u8 *bssid,
10623 gfp_t gfp)
10624{
10625 struct sk_buff *msg;
10626 void *hdr;
10627
fd2120ca 10628 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10629 if (!msg)
10630 return;
10631
10632 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10633 if (!hdr) {
10634 nlmsg_free(msg);
10635 return;
10636 }
10637
9360ffd1
DM		 10638 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10639 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10640 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10641 goto nla_put_failure;
04a773ad 10642
3b7b72ee 10643 genlmsg_end(msg, hdr);
04a773ad 10644
68eb5503 10645 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10646 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10647 return;
10648
10649 nla_put_failure:
10650 genlmsg_cancel(msg, hdr);
10651 nlmsg_free(msg);
10652}
10653
947add36
JB		 10654void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10655 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10656{
947add36 10657 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10658 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10659 struct sk_buff *msg;
10660 void *hdr;
10661
947add36
JB		 10662 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10663 return;
10664
10665 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10666
c93b5e71
JC		 10667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10668 if (!msg)
10669 return;
10670
10671 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10672 if (!hdr) {
10673 nlmsg_free(msg);
10674 return;
10675 }
10676
9360ffd1 10677 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10678 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10679 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10680 (ie_len && ie &&
10681 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10682 goto nla_put_failure;
c93b5e71 10683
3b7b72ee 10684 genlmsg_end(msg, hdr);
c93b5e71 10685
68eb5503 10686 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10687 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10688 return;
10689
10690 nla_put_failure:
10691 genlmsg_cancel(msg, hdr);
10692 nlmsg_free(msg);
10693}
947add36 10694EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10695
a3b8b056
JM		 10696void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10697 struct net_device *netdev, const u8 *addr,
10698 enum nl80211_key_type key_type, int key_id,
e6d6e342 10699 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10700{
10701 struct sk_buff *msg;
10702 void *hdr;
10703
e6d6e342 10704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10705 if (!msg)
10706 return;
10707
10708 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10709 if (!hdr) {
10710 nlmsg_free(msg);
10711 return;
10712 }
10713
9360ffd1
DM		 10714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10716 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10717 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10718 (key_id != -1 &&
10719 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10720 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10721 goto nla_put_failure;
a3b8b056 10722
3b7b72ee 10723 genlmsg_end(msg, hdr);
a3b8b056 10724
68eb5503 10725 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10726 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 10727 return;
10728
10729 nla_put_failure:
10730 genlmsg_cancel(msg, hdr);
10731 nlmsg_free(msg);
10732}
10733
6bad8766
LR		 10734void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10735 struct ieee80211_channel *channel_before,
10736 struct ieee80211_channel *channel_after)
10737{
10738 struct sk_buff *msg;
10739 void *hdr;
10740 struct nlattr *nl_freq;
10741
fd2120ca 10742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10743 if (!msg)
10744 return;
10745
10746 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10747 if (!hdr) {
10748 nlmsg_free(msg);
10749 return;
10750 }
10751
10752 /*
10753 * Since we are applying the beacon hint to a wiphy we know its
10754 * wiphy_idx is valid
10755 */
9360ffd1
DM		 10756 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10757 goto nla_put_failure;
6bad8766
LR		 10758
10759 /* Before */
10760 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10761 if (!nl_freq)
10762 goto nla_put_failure;
cdc89b97 10763 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10764 goto nla_put_failure;
10765 nla_nest_end(msg, nl_freq);
10766
10767 /* After */
10768 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10769 if (!nl_freq)
10770 goto nla_put_failure;
cdc89b97 10771 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10772 goto nla_put_failure;
10773 nla_nest_end(msg, nl_freq);
10774
3b7b72ee 10775 genlmsg_end(msg, hdr);
6bad8766 10776
463d0183 10777 rcu_read_lock();
68eb5503 10778 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10779 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 10780 rcu_read_unlock();
6bad8766
LR		 10781
10782 return;
10783
10784nla_put_failure:
10785 genlmsg_cancel(msg, hdr);
10786 nlmsg_free(msg);
10787}
10788
9588bbd5
JM		 10789static void nl80211_send_remain_on_chan_event(
10790 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10791 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10792 struct ieee80211_channel *chan,
9588bbd5
JM		 10793 unsigned int duration, gfp_t gfp)
10794{
10795 struct sk_buff *msg;
10796 void *hdr;
10797
10798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10799 if (!msg)
10800 return;
10801
10802 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10803 if (!hdr) {
10804 nlmsg_free(msg);
10805 return;
10806 }
10807
9360ffd1 10808 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10809 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10810 wdev->netdev->ifindex)) ||
00f53350 10811 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10812 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10813 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10814 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10815 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10816 goto nla_put_failure;
9588bbd5 10817
9360ffd1
DM		 10818 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10819 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10820 goto nla_put_failure;
9588bbd5 10821
3b7b72ee 10822 genlmsg_end(msg, hdr);
9588bbd5 10823
68eb5503 10824 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10825 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 10826 return;
10827
10828 nla_put_failure:
10829 genlmsg_cancel(msg, hdr);
10830 nlmsg_free(msg);
10831}
10832
947add36
JB		 10833void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10834 struct ieee80211_channel *chan,
10835 unsigned int duration, gfp_t gfp)
9588bbd5 10836{
947add36 10837 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10838 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10839
10840 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10841 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10842 rdev, wdev, cookie, chan,
42d97a59 10843 duration, gfp);
9588bbd5 10844}
947add36 10845EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10846
947add36
JB		 10847void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10848 struct ieee80211_channel *chan,
10849 gfp_t gfp)
9588bbd5 10850{
947add36 10851 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10852 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 10853
10854 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10855 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10856 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10857}
947add36 10858EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10859
947add36
JB		 10860void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10861 struct station_info *sinfo, gfp_t gfp)
98b62183 10862{
947add36 10863 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10864 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 10865 struct sk_buff *msg;
10866
947add36
JB		 10867 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10868
58050fce 10869 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10870 if (!msg)
10871 return;
10872
66266b3a
JL		 10873 if (nl80211_send_station(msg, 0, 0, 0,
10874 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10875 nlmsg_free(msg);
10876 return;
10877 }
10878
68eb5503 10879 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10880 NL80211_MCGRP_MLME, gfp);
98b62183 10881}
947add36 10882EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10883
947add36 10884void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10885{
947add36 10886 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10887 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 10888 struct sk_buff *msg;
10889 void *hdr;
10890
947add36
JB		 10891 trace_cfg80211_del_sta(dev, mac_addr);
10892
58050fce 10893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10894 if (!msg)
10895 return;
10896
10897 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10898 if (!hdr) {
10899 nlmsg_free(msg);
10900 return;
10901 }
10902
9360ffd1
DM		 10903 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10904 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10905 goto nla_put_failure;
ec15e68b 10906
3b7b72ee 10907 genlmsg_end(msg, hdr);
ec15e68b 10908
68eb5503 10909 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10910 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 10911 return;
10912
10913 nla_put_failure:
10914 genlmsg_cancel(msg, hdr);
10915 nlmsg_free(msg);
10916}
947add36 10917EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10918
947add36
JB		 10919void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10920 enum nl80211_connect_failed_reason reason,
10921 gfp_t gfp)
ed44a951 10922{
947add36 10923 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 10924 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 10925 struct sk_buff *msg;
10926 void *hdr;
10927
10928 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10929 if (!msg)
10930 return;
10931
10932 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10933 if (!hdr) {
10934 nlmsg_free(msg);
10935 return;
10936 }
10937
10938 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10939 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10940 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10941 goto nla_put_failure;
10942
10943 genlmsg_end(msg, hdr);
10944
68eb5503 10945 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10946 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 10947 return;
10948
10949 nla_put_failure:
10950 genlmsg_cancel(msg, hdr);
10951 nlmsg_free(msg);
10952}
947add36 10953EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10954
b92ab5d8
JB		 10955static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10956 const u8 *addr, gfp_t gfp)
28946da7
JB		 10957{
10958 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10959 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 10960 struct sk_buff *msg;
10961 void *hdr;
15e47304 10962 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10963
15e47304 10964 if (!nlportid)
28946da7
JB		 10965 return false;
10966
10967 msg = nlmsg_new(100, gfp);
10968 if (!msg)
10969 return true;
10970
b92ab5d8 10971 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10972 if (!hdr) {
10973 nlmsg_free(msg);
10974 return true;
10975 }
10976
9360ffd1
DM		 10977 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10978 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10979 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10980 goto nla_put_failure;
28946da7 10981
9c90a9f6 10982 genlmsg_end(msg, hdr);
15e47304 10983 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10984 return true;
10985
10986 nla_put_failure:
10987 genlmsg_cancel(msg, hdr);
10988 nlmsg_free(msg);
10989 return true;
10990}
10991
947add36
JB		 10992bool cfg80211_rx_spurious_frame(struct net_device *dev,
10993 const u8 *addr, gfp_t gfp)
b92ab5d8 10994{
947add36
JB		 10995 struct wireless_dev *wdev = dev->ieee80211_ptr;
10996 bool ret;
10997
10998 trace_cfg80211_rx_spurious_frame(dev, addr);
10999
11000 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11001 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11002 trace_cfg80211_return_bool(false);
11003 return false;
11004 }
11005 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11006 addr, gfp);
11007 trace_cfg80211_return_bool(ret);
11008 return ret;
b92ab5d8 11009}
947add36 11010EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11011
947add36
JB		 11012bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11013 const u8 *addr, gfp_t gfp)
b92ab5d8 11014{
947add36
JB		 11015 struct wireless_dev *wdev = dev->ieee80211_ptr;
11016 bool ret;
11017
11018 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11019
11020 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11021 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11022 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11023 trace_cfg80211_return_bool(false);
11024 return false;
11025 }
11026 ret = __nl80211_unexpected_frame(dev,
11027 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11028 addr, gfp);
11029 trace_cfg80211_return_bool(ret);
11030 return ret;
b92ab5d8 11031}
947add36 11032EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11033
2e161f78 11034int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11035 struct wireless_dev *wdev, u32 nlportid,
804483e9 11036 int freq, int sig_dbm,
19504cf5 11037 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11038{
71bbc994 11039 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11040 struct sk_buff *msg;
11041 void *hdr;
026331c4
JM		 11042
11043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11044 if (!msg)
11045 return -ENOMEM;
11046
2e161f78 11047 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11048 if (!hdr) {
11049 nlmsg_free(msg);
11050 return -ENOMEM;
11051 }
11052
9360ffd1 11053 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11054 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11055 netdev->ifindex)) ||
a838490b 11056 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11057 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11058 (sig_dbm &&
11059 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11060 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11061 (flags &&
11062 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11063 goto nla_put_failure;
026331c4 11064
3b7b72ee 11065 genlmsg_end(msg, hdr);
026331c4 11066
15e47304 11067 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11068
11069 nla_put_failure:
11070 genlmsg_cancel(msg, hdr);
11071 nlmsg_free(msg);
11072 return -ENOBUFS;
11073}
11074
947add36
JB		 11075void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11076 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11077{
947add36 11078 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11079 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11080 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11081 struct sk_buff *msg;
11082 void *hdr;
11083
947add36
JB		 11084 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11085
026331c4
JM		 11086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11087 if (!msg)
11088 return;
11089
2e161f78 11090 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11091 if (!hdr) {
11092 nlmsg_free(msg);
11093 return;
11094 }
11095
9360ffd1 11096 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11097 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11098 netdev->ifindex)) ||
a838490b 11099 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11100 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11101 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11102 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11103 goto nla_put_failure;
026331c4 11104
3b7b72ee 11105 genlmsg_end(msg, hdr);
026331c4 11106
68eb5503 11107 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11108 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11109 return;
11110
11111 nla_put_failure:
11112 genlmsg_cancel(msg, hdr);
11113 nlmsg_free(msg);
11114}
947add36 11115EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11116
947add36
JB		 11117void cfg80211_cqm_rssi_notify(struct net_device *dev,
11118 enum nl80211_cqm_rssi_threshold_event rssi_event,
11119 gfp_t gfp)
d6dc1a38 11120{
947add36
JB		 11121 struct wireless_dev *wdev = dev->ieee80211_ptr;
11122 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11123 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11124 struct sk_buff *msg;
11125 struct nlattr *pinfoattr;
11126 void *hdr;
11127
947add36
JB		 11128 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11129
58050fce 11130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11131 if (!msg)
11132 return;
11133
11134 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11135 if (!hdr) {
11136 nlmsg_free(msg);
11137 return;
11138 }
11139
9360ffd1 11140 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11141 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11142 goto nla_put_failure;
d6dc1a38
JO		 11143
11144 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11145 if (!pinfoattr)
11146 goto nla_put_failure;
11147
9360ffd1
DM		 11148 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11149 rssi_event))
11150 goto nla_put_failure;
d6dc1a38
JO		 11151
11152 nla_nest_end(msg, pinfoattr);
11153
3b7b72ee 11154 genlmsg_end(msg, hdr);
d6dc1a38 11155
68eb5503 11156 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11157 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11158 return;
11159
11160 nla_put_failure:
11161 genlmsg_cancel(msg, hdr);
11162 nlmsg_free(msg);
11163}
947add36 11164EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11165
947add36
JB		 11166static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11167 struct net_device *netdev, const u8 *bssid,
11168 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11169{
11170 struct sk_buff *msg;
11171 struct nlattr *rekey_attr;
11172 void *hdr;
11173
58050fce 11174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11175 if (!msg)
11176 return;
11177
11178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11179 if (!hdr) {
11180 nlmsg_free(msg);
11181 return;
11182 }
11183
9360ffd1
DM		 11184 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11185 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11186 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11187 goto nla_put_failure;
e5497d76
JB		 11188
11189 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11190 if (!rekey_attr)
11191 goto nla_put_failure;
11192
9360ffd1
DM		 11193 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11194 NL80211_REPLAY_CTR_LEN, replay_ctr))
11195 goto nla_put_failure;
e5497d76
JB		 11196
11197 nla_nest_end(msg, rekey_attr);
11198
3b7b72ee 11199 genlmsg_end(msg, hdr);
e5497d76 11200
68eb5503 11201 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11202 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11203 return;
11204
11205 nla_put_failure:
11206 genlmsg_cancel(msg, hdr);
11207 nlmsg_free(msg);
11208}
11209
947add36
JB		 11210void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11211 const u8 *replay_ctr, gfp_t gfp)
11212{
11213 struct wireless_dev *wdev = dev->ieee80211_ptr;
11214 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11215 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11216
11217 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11218 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11219}
11220EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11221
11222static void
11223nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11224 struct net_device *netdev, int index,
11225 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11226{
11227 struct sk_buff *msg;
11228 struct nlattr *attr;
11229 void *hdr;
11230
58050fce 11231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11232 if (!msg)
11233 return;
11234
11235 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11236 if (!hdr) {
11237 nlmsg_free(msg);
11238 return;
11239 }
11240
9360ffd1
DM		 11241 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11242 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11243 goto nla_put_failure;
c9df56b4
JM		 11244
11245 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11246 if (!attr)
11247 goto nla_put_failure;
11248
9360ffd1
DM		 11249 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11250 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11251 (preauth &&
11252 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11253 goto nla_put_failure;
c9df56b4
JM		 11254
11255 nla_nest_end(msg, attr);
11256
3b7b72ee 11257 genlmsg_end(msg, hdr);
c9df56b4 11258
68eb5503 11259 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11260 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11261 return;
11262
11263 nla_put_failure:
11264 genlmsg_cancel(msg, hdr);
11265 nlmsg_free(msg);
11266}
11267
947add36
JB		 11268void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11269 const u8 *bssid, bool preauth, gfp_t gfp)
11270{
11271 struct wireless_dev *wdev = dev->ieee80211_ptr;
11272 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11273 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11274
11275 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11276 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11277}
11278EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11279
11280static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11281 struct net_device *netdev,
11282 struct cfg80211_chan_def *chandef,
11283 gfp_t gfp)
5314526b
TP		 11284{
11285 struct sk_buff *msg;
11286 void *hdr;
11287
58050fce 11288 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11289 if (!msg)
11290 return;
11291
11292 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11293 if (!hdr) {
11294 nlmsg_free(msg);
11295 return;
11296 }
11297
683b6d3b
JB		 11298 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11299 goto nla_put_failure;
11300
11301 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11302 goto nla_put_failure;
5314526b
TP		 11303
11304 genlmsg_end(msg, hdr);
11305
68eb5503 11306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11307 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11308 return;
11309
11310 nla_put_failure:
11311 genlmsg_cancel(msg, hdr);
11312 nlmsg_free(msg);
11313}
11314
947add36
JB		 11315void cfg80211_ch_switch_notify(struct net_device *dev,
11316 struct cfg80211_chan_def *chandef)
84f10708 11317{
947add36
JB		 11318 struct wireless_dev *wdev = dev->ieee80211_ptr;
11319 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11320 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11321
e487eaeb 11322 ASSERT_WDEV_LOCK(wdev);
947add36 11323
e487eaeb 11324 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11325
11326 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11327 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11328 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11329 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11330 return;
947add36 11331
9e0e2961 11332 wdev->chandef = *chandef;
96f55f12 11333 wdev->preset_chandef = *chandef;
947add36 11334 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11335}
11336EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11337
11338void cfg80211_cqm_txe_notify(struct net_device *dev,
11339 const u8 *peer, u32 num_packets,
11340 u32 rate, u32 intvl, gfp_t gfp)
11341{
11342 struct wireless_dev *wdev = dev->ieee80211_ptr;
11343 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11344 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11345 struct sk_buff *msg;
11346 struct nlattr *pinfoattr;
11347 void *hdr;
11348
11349 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11350 if (!msg)
11351 return;
11352
11353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11354 if (!hdr) {
11355 nlmsg_free(msg);
11356 return;
11357 }
11358
11359 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11360 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11361 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11362 goto nla_put_failure;
11363
11364 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11365 if (!pinfoattr)
11366 goto nla_put_failure;
11367
11368 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11369 goto nla_put_failure;
11370
11371 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11372 goto nla_put_failure;
11373
11374 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11375 goto nla_put_failure;
11376
11377 nla_nest_end(msg, pinfoattr);
11378
11379 genlmsg_end(msg, hdr);
11380
68eb5503 11381 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11382 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11383 return;
11384
11385 nla_put_failure:
11386 genlmsg_cancel(msg, hdr);
11387 nlmsg_free(msg);
11388}
947add36 11389EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11390
04f39047
SW		 11391void
11392nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11393 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11394 enum nl80211_radar_event event,
11395 struct net_device *netdev, gfp_t gfp)
11396{
11397 struct sk_buff *msg;
11398 void *hdr;
11399
11400 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11401 if (!msg)
11402 return;
11403
11404 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11405 if (!hdr) {
11406 nlmsg_free(msg);
11407 return;
11408 }
11409
11410 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11411 goto nla_put_failure;
11412
11413 /* NOP and radar events don't need a netdev parameter */
11414 if (netdev) {
11415 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11416
11417 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11418 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11419 goto nla_put_failure;
11420 }
11421
11422 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11423 goto nla_put_failure;
11424
11425 if (nl80211_send_chandef(msg, chandef))
11426 goto nla_put_failure;
11427
9c90a9f6 11428 genlmsg_end(msg, hdr);
04f39047 11429
68eb5503 11430 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11431 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11432 return;
11433
11434 nla_put_failure:
11435 genlmsg_cancel(msg, hdr);
11436 nlmsg_free(msg);
11437}
11438
947add36
JB		 11439void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11440 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11441{
947add36
JB		 11442 struct wireless_dev *wdev = dev->ieee80211_ptr;
11443 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11444 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11445 struct sk_buff *msg;
11446 struct nlattr *pinfoattr;
11447 void *hdr;
11448
947add36
JB		 11449 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11450
58050fce 11451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11452 if (!msg)
11453 return;
11454
11455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11456 if (!hdr) {
11457 nlmsg_free(msg);
11458 return;
11459 }
11460
9360ffd1 11461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11462 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11463 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11464 goto nla_put_failure;
c063dbf5
JB		 11465
11466 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11467 if (!pinfoattr)
11468 goto nla_put_failure;
11469
9360ffd1
DM		 11470 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11471 goto nla_put_failure;
c063dbf5
JB		 11472
11473 nla_nest_end(msg, pinfoattr);
11474
3b7b72ee 11475 genlmsg_end(msg, hdr);
c063dbf5 11476
68eb5503 11477 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11478 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11479 return;
11480
11481 nla_put_failure:
11482 genlmsg_cancel(msg, hdr);
11483 nlmsg_free(msg);
11484}
947add36 11485EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11486
7f6cf311
JB		 11487void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11488 u64 cookie, bool acked, gfp_t gfp)
11489{
11490 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11491 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11492 struct sk_buff *msg;
11493 void *hdr;
7f6cf311 11494
4ee3e063
BL		 11495 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11496
58050fce 11497 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11498
7f6cf311
JB		 11499 if (!msg)
11500 return;
11501
11502 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11503 if (!hdr) {
11504 nlmsg_free(msg);
11505 return;
11506 }
11507
9360ffd1
DM		 11508 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11509 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11510 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11511 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11512 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11513 goto nla_put_failure;
7f6cf311 11514
9c90a9f6 11515 genlmsg_end(msg, hdr);
7f6cf311 11516
68eb5503 11517 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11518 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11519 return;
11520
11521 nla_put_failure:
11522 genlmsg_cancel(msg, hdr);
11523 nlmsg_free(msg);
11524}
11525EXPORT_SYMBOL(cfg80211_probe_status);
11526
5e760230
JB		 11527void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11528 const u8 *frame, size_t len,
37c73b5f 11529 int freq, int sig_dbm)
5e760230 11530{
f26cbf40 11531 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11532 struct sk_buff *msg;
11533 void *hdr;
37c73b5f 11534 struct cfg80211_beacon_registration *reg;
5e760230 11535
4ee3e063
BL		 11536 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11537
37c73b5f
BG		 11538 spin_lock_bh(&rdev->beacon_registrations_lock);
11539 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11540 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11541 if (!msg) {
11542 spin_unlock_bh(&rdev->beacon_registrations_lock);
11543 return;
11544 }
5e760230 11545
37c73b5f
BG		 11546 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11547 if (!hdr)
11548 goto nla_put_failure;
5e760230 11549
37c73b5f
BG		 11550 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11551 (freq &&
11552 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11553 (sig_dbm &&
11554 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11555 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11556 goto nla_put_failure;
5e760230 11557
37c73b5f 11558 genlmsg_end(msg, hdr);
5e760230 11559
37c73b5f
BG		 11560 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11561 }
11562 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11563 return;
11564
11565 nla_put_failure:
37c73b5f
BG		 11566 spin_unlock_bh(&rdev->beacon_registrations_lock);
11567 if (hdr)
11568 genlmsg_cancel(msg, hdr);
5e760230
JB		 11569 nlmsg_free(msg);
11570}
11571EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11572
cd8f7cb4
JB		 11573#ifdef CONFIG_PM
11574void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11575 struct cfg80211_wowlan_wakeup *wakeup,
11576 gfp_t gfp)
11577{
f26cbf40 11578 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11579 struct sk_buff *msg;
11580 void *hdr;
9c90a9f6 11581 int size = 200;
cd8f7cb4
JB		 11582
11583 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11584
11585 if (wakeup)
11586 size += wakeup->packet_present_len;
11587
11588 msg = nlmsg_new(size, gfp);
11589 if (!msg)
11590 return;
11591
11592 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11593 if (!hdr)
11594 goto free_msg;
11595
11596 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11597 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11598 goto free_msg;
11599
11600 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11601 wdev->netdev->ifindex))
11602 goto free_msg;
11603
11604 if (wakeup) {
11605 struct nlattr *reasons;
11606
11607 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11608 if (!reasons)
11609 goto free_msg;
cd8f7cb4
JB		 11610
11611 if (wakeup->disconnect &&
11612 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11613 goto free_msg;
11614 if (wakeup->magic_pkt &&
11615 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11616 goto free_msg;
11617 if (wakeup->gtk_rekey_failure &&
11618 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11619 goto free_msg;
11620 if (wakeup->eap_identity_req &&
11621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11622 goto free_msg;
11623 if (wakeup->four_way_handshake &&
11624 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11625 goto free_msg;
11626 if (wakeup->rfkill_release &&
11627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11628 goto free_msg;
11629
11630 if (wakeup->pattern_idx >= 0 &&
11631 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11632 wakeup->pattern_idx))
11633 goto free_msg;
11634
ae917c9f
JB		 11635 if (wakeup->tcp_match &&
11636 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11637 goto free_msg;
2a0e047e 11638
ae917c9f
JB		 11639 if (wakeup->tcp_connlost &&
11640 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11641 goto free_msg;
2a0e047e 11642
ae917c9f
JB		 11643 if (wakeup->tcp_nomoretokens &&
11644 nla_put_flag(msg,
11645 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11646 goto free_msg;
2a0e047e 11647
cd8f7cb4
JB		 11648 if (wakeup->packet) {
11649 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11650 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11651
11652 if (!wakeup->packet_80211) {
11653 pkt_attr =
11654 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11655 len_attr =
11656 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11657 }
11658
11659 if (wakeup->packet_len &&
11660 nla_put_u32(msg, len_attr, wakeup->packet_len))
11661 goto free_msg;
11662
11663 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11664 wakeup->packet))
11665 goto free_msg;
11666 }
11667
11668 nla_nest_end(msg, reasons);
11669 }
11670
9c90a9f6 11671 genlmsg_end(msg, hdr);
cd8f7cb4 11672
68eb5503 11673 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11674 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11675 return;
11676
11677 free_msg:
11678 nlmsg_free(msg);
11679}
11680EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11681#endif
11682
3475b094
JM		 11683void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11684 enum nl80211_tdls_operation oper,
11685 u16 reason_code, gfp_t gfp)
11686{
11687 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11688 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11689 struct sk_buff *msg;
11690 void *hdr;
3475b094
JM		 11691
11692 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11693 reason_code);
11694
11695 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11696 if (!msg)
11697 return;
11698
11699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11700 if (!hdr) {
11701 nlmsg_free(msg);
11702 return;
11703 }
11704
11705 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11706 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11707 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11708 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11709 (reason_code > 0 &&
11710 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11711 goto nla_put_failure;
11712
9c90a9f6 11713 genlmsg_end(msg, hdr);
3475b094 11714
68eb5503 11715 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11716 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 11717 return;
11718
11719 nla_put_failure:
11720 genlmsg_cancel(msg, hdr);
11721 nlmsg_free(msg);
11722}
11723EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11724
026331c4
JM		 11725static int nl80211_netlink_notify(struct notifier_block * nb,
11726 unsigned long state,
11727 void *_notify)
11728{
11729 struct netlink_notify *notify = _notify;
11730 struct cfg80211_registered_device *rdev;
11731 struct wireless_dev *wdev;
37c73b5f 11732 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11733
11734 if (state != NETLINK_URELEASE)
11735 return NOTIFY_DONE;
11736
11737 rcu_read_lock();
11738
5e760230 11739 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 11740 bool schedule_destroy_work = false;
11741
11742 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 11743 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 11744
78f22b6a
JB		 11745 if (wdev->owner_nlportid == notify->portid)
11746 schedule_destroy_work = true;
11747 }
11748
37c73b5f
BG		 11749 spin_lock_bh(&rdev->beacon_registrations_lock);
11750 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11751 list) {
11752 if (reg->nlportid == notify->portid) {
11753 list_del(&reg->list);
11754 kfree(reg);
11755 break;
11756 }
11757 }
11758 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 11759
11760 if (schedule_destroy_work) {
11761 struct cfg80211_iface_destroy *destroy;
11762
11763 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11764 if (destroy) {
11765 destroy->nlportid = notify->portid;
11766 spin_lock(&rdev->destroy_list_lock);
11767 list_add(&destroy->list, &rdev->destroy_list);
11768 spin_unlock(&rdev->destroy_list_lock);
11769 schedule_work(&rdev->destroy_work);
11770 }
11771 }
5e760230 11772 }
026331c4
JM		 11773
11774 rcu_read_unlock();
11775
6784c7db 11776 return NOTIFY_OK;
026331c4
JM		 11777}
11778
11779static struct notifier_block nl80211_netlink_notifier = {
11780 .notifier_call = nl80211_netlink_notify,
11781};
11782
355199e0
JM		 11783void cfg80211_ft_event(struct net_device *netdev,
11784 struct cfg80211_ft_event_params *ft_event)
11785{
11786 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 11787 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 11788 struct sk_buff *msg;
11789 void *hdr;
355199e0
JM		 11790
11791 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11792
11793 if (!ft_event->target_ap)
11794 return;
11795
11796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11797 if (!msg)
11798 return;
11799
11800 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 11801 if (!hdr)
11802 goto out;
355199e0 11803
ae917c9f
JB		 11804 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11805 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11806 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11807 goto out;
355199e0 11808
ae917c9f
JB		 11809 if (ft_event->ies &&
11810 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11811 goto out;
11812 if (ft_event->ric_ies &&
11813 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11814 ft_event->ric_ies))
11815 goto out;
355199e0 11816
9c90a9f6 11817 genlmsg_end(msg, hdr);
355199e0 11818
68eb5503 11819 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11820 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 11821 return;
11822 out:
11823 nlmsg_free(msg);
355199e0
JM		 11824}
11825EXPORT_SYMBOL(cfg80211_ft_event);
11826
5de17984
AS		 11827void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11828{
11829 struct cfg80211_registered_device *rdev;
11830 struct sk_buff *msg;
11831 void *hdr;
11832 u32 nlportid;
11833
f26cbf40 11834 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 11835 if (!rdev->crit_proto_nlportid)
11836 return;
11837
11838 nlportid = rdev->crit_proto_nlportid;
11839 rdev->crit_proto_nlportid = 0;
11840
11841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11842 if (!msg)
11843 return;
11844
11845 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11846 if (!hdr)
11847 goto nla_put_failure;
11848
11849 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11850 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11851 goto nla_put_failure;
11852
11853 genlmsg_end(msg, hdr);
11854
11855 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11856 return;
11857
11858 nla_put_failure:
11859 if (hdr)
11860 genlmsg_cancel(msg, hdr);
11861 nlmsg_free(msg);
11862
11863}
11864EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11865
348baf0e
JB		 11866void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11867{
11868 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11869 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 11870 struct sk_buff *msg;
11871 void *hdr;
11872
11873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11874 if (!msg)
11875 return;
11876
11877 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11878 if (!hdr)
11879 goto out;
11880
11881 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11882 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11883 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11884 goto out;
11885
11886 genlmsg_end(msg, hdr);
11887
11888 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11889 NL80211_MCGRP_MLME, GFP_KERNEL);
11890 return;
11891 out:
11892 nlmsg_free(msg);
11893}
11894
55682965
JB		 11895/* initialisation/exit functions */
11896
11897int nl80211_init(void)
11898{
0d63cbb5 11899 int err;
55682965 11900
2a94fe48
JB		 11901 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11902 nl80211_mcgrps);
55682965
JB		 11903 if (err)
11904 return err;
11905
026331c4
JM		 11906 err = netlink_register_notifier(&nl80211_netlink_notifier);
11907 if (err)
11908 goto err_out;
11909
55682965
JB		 11910 return 0;
11911 err_out:
11912 genl_unregister_family(&nl80211_fam);
11913 return err;
11914}
11915
11916void nl80211_exit(void)
11917{
026331c4 11918 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11919 genl_unregister_family(&nl80211_fam);
11920}
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