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