include/linux/ip6_tunnel.h

   1 #ifndef _IP6_TUNNEL_H
   2 #define _IP6_TUNNEL_H
   3
   4 #include <linux/types.h>
   5 #include <linux/if.h>           /* For IFNAMSIZ. */
   6 #include <linux/in6.h>          /* For struct in6_addr. */
   7
   8 #define IPV6_TLV_TNL_ENCAP_LIMIT 4
   9 #define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4
  10
  11 /* don't add encapsulation limit if one isn't present in inner packet */
  12 #define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1
  13 /* copy the traffic class field from the inner packet */
  14 #define IP6_TNL_F_USE_ORIG_TCLASS 0x2
  15 /* copy the flowlabel from the inner packet */
  16 #define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4
  17 /* being used for Mobile IPv6 */
  18 #define IP6_TNL_F_MIP6_DEV 0x8
  19 /* copy DSCP from the outer packet */
  20 #define IP6_TNL_F_RCV_DSCP_COPY 0x10
  21 /* copy fwmark from inner packet */
  22 #define IP6_TNL_F_USE_ORIG_FWMARK 0x20
  23
  24 struct ip6_tnl_parm {
  25         char name[IFNAMSIZ];    /* name of tunnel device */
  26         int link;               /* ifindex of underlying L2 interface */
  27         __u8 proto;             /* tunnel protocol */
  28         __u8 encap_limit;       /* encapsulation limit for tunnel */
  29         __u8 hop_limit;         /* hop limit for tunnel */
  30         __be32 flowinfo;        /* traffic class and flowlabel for tunnel */
  31         __u32 flags;            /* tunnel flags */
  32         struct in6_addr laddr;  /* local tunnel end-point address */
  33         struct in6_addr raddr;  /* remote tunnel end-point address */
  34 };
  35
  36 struct ip6_tnl_parm2 {
  37         char name[IFNAMSIZ];    /* name of tunnel device */
  38         int link;               /* ifindex of underlying L2 interface */
  39         __u8 proto;             /* tunnel protocol */
  40         __u8 encap_limit;       /* encapsulation limit for tunnel */
  41         __u8 hop_limit;         /* hop limit for tunnel */
  42         __be32 flowinfo;        /* traffic class and flowlabel for tunnel */
  43         __u32 flags;            /* tunnel flags */
  44         struct in6_addr laddr;  /* local tunnel end-point address */
  45         struct in6_addr raddr;  /* remote tunnel end-point address */
  46
  47         __be16                  i_flags;
  48         __be16                  o_flags;
  49         __be32                  i_key;
  50         __be32                  o_key;
  51 };
  52
  53 #endif