1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _LINUX_NETFILTER_XT_L2TP_H
3 #define _LINUX_NETFILTER_XT_L2TP_H
4 
5 #include <linux/types.h>
6 
7 enum xt_l2tp_type {
8 	XT_L2TP_TYPE_CONTROL,
9 	XT_L2TP_TYPE_DATA,
10 };
11 
12 /* L2TP matching stuff */
13 struct xt_l2tp_info {
14 	__u32 tid;			/* tunnel id */
15 	__u32 sid;			/* session id */
16 	__u8 version;			/* L2TP protocol version */
17 	__u8 type;			/* L2TP packet type */
18 	__u8 flags;			/* which fields to match */
19 };
20 
21 enum {
22 	XT_L2TP_TID	= (1 << 0),	/* match L2TP tunnel id */
23 	XT_L2TP_SID	= (1 << 1),	/* match L2TP session id */
24 	XT_L2TP_VERSION	= (1 << 2),	/* match L2TP protocol version */
25 	XT_L2TP_TYPE	= (1 << 3),	/* match L2TP packet type */
26 };
27 
28 #endif /* _LINUX_NETFILTER_XT_L2TP_H */
29