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root/include/linux/ip6_tunnel.h

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INCLUDED FROM


#ifndef _IP6_TUNNEL_H
#define _IP6_TUNNEL_H

#define IPV6_TLV_TNL_ENCAP_LIMIT 4
#define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4

/* don't add encapsulation limit if one isn't present in inner packet */
#define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1
/* copy the traffic class field from the inner packet */
#define IP6_TNL_F_USE_ORIG_TCLASS 0x2
/* copy the flowlabel from the inner packet */
#define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4
/* being used for Mobile IPv6 */
#define IP6_TNL_F_MIP6_DEV 0x8
/* copy DSCP from the outer packet */
#define IP6_TNL_F_RCV_DSCP_COPY 0x10

struct ip6_tnl_parm {
        char name[IFNAMSIZ];    /* name of tunnel device */
        int link;               /* ifindex of underlying L2 interface */
        __u8 proto;             /* tunnel protocol */
        __u8 encap_limit;       /* encapsulation limit for tunnel */
        __u8 hop_limit;         /* hop limit for tunnel */
        __be32 flowinfo;        /* traffic class and flowlabel for tunnel */
        __u32 flags;            /* tunnel flags */
        struct in6_addr laddr;  /* local tunnel end-point address */
        struct in6_addr raddr;  /* remote tunnel end-point address */
};

#endif

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