57 lines · c
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _IP6_TUNNEL_H3#define _IP6_TUNNEL_H4 5#include <linux/types.h>6#include <linux/if.h> /* For IFNAMSIZ. */7#include <linux/in6.h> /* For struct in6_addr. */8 9#define IPV6_TLV_TNL_ENCAP_LIMIT 410#define IPV6_DEFAULT_TNL_ENCAP_LIMIT 411 12/* don't add encapsulation limit if one isn't present in inner packet */13#define IP6_TNL_F_IGN_ENCAP_LIMIT 0x114/* copy the traffic class field from the inner packet */15#define IP6_TNL_F_USE_ORIG_TCLASS 0x216/* copy the flowlabel from the inner packet */17#define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x418/* being used for Mobile IPv6 */19#define IP6_TNL_F_MIP6_DEV 0x820/* copy DSCP from the outer packet */21#define IP6_TNL_F_RCV_DSCP_COPY 0x1022/* copy fwmark from inner packet */23#define IP6_TNL_F_USE_ORIG_FWMARK 0x2024/* allow remote endpoint on the local node */25#define IP6_TNL_F_ALLOW_LOCAL_REMOTE 0x4026 27struct ip6_tnl_parm {28 char name[IFNAMSIZ]; /* name of tunnel device */29 int link; /* ifindex of underlying L2 interface */30 __u8 proto; /* tunnel protocol */31 __u8 encap_limit; /* encapsulation limit for tunnel */32 __u8 hop_limit; /* hop limit for tunnel */33 __be32 flowinfo; /* traffic class and flowlabel for tunnel */34 __u32 flags; /* tunnel flags */35 struct in6_addr laddr; /* local tunnel end-point address */36 struct in6_addr raddr; /* remote tunnel end-point address */37};38 39struct ip6_tnl_parm2 {40 char name[IFNAMSIZ]; /* name of tunnel device */41 int link; /* ifindex of underlying L2 interface */42 __u8 proto; /* tunnel protocol */43 __u8 encap_limit; /* encapsulation limit for tunnel */44 __u8 hop_limit; /* hop limit for tunnel */45 __be32 flowinfo; /* traffic class and flowlabel for tunnel */46 __u32 flags; /* tunnel flags */47 struct in6_addr laddr; /* local tunnel end-point address */48 struct in6_addr raddr; /* remote tunnel end-point address */49 50 __be16 i_flags;51 __be16 o_flags;52 __be32 i_key;53 __be32 o_key;54};55 56#endif57