root/include/net/ip6_tunnel.h

INCLUDED FROM

#ifndef _NET_IP6_TUNNEL_H
#define _NET_IP6_TUNNEL_H

#include <linux/ipv6.h>
#include <linux/netdevice.h>
#include <linux/ip6_tunnel.h>

/* capable of sending packets */
#define IP6_TNL_F_CAP_XMIT 0x10000
/* capable of receiving packets */
#define IP6_TNL_F_CAP_RCV 0x20000

/* IPv6 tunnel */

struct ip6_tnl {
        struct ip6_tnl *next;   /* next tunnel in list */
        struct net_device *dev; /* virtual device associated with tunnel */
        int recursion;          /* depth of hard_start_xmit recursion */
        struct ip6_tnl_parm parms;      /* tunnel configuration parameters */
        struct flowi fl;        /* flowi template for xmit */
        struct dst_entry *dst_cache;    /* cached dst */
        u32 dst_cookie;
};

/* Tunnel encapsulation limit destination sub-option */

struct ipv6_tlv_tnl_enc_lim {
        __u8 type;              /* type-code for option         */
        __u8 length;            /* option length                */
        __u8 encap_limit;       /* tunnel encapsulation limit   */
} __attribute__ ((packed));

#endif