include/net/ip6_tunnel.h

   1 /*
   2  * $Id$
   3  */
   4
   5 #ifndef _NET_IP6_TUNNEL_H
   6 #define _NET_IP6_TUNNEL_H
   7
   8 #include <linux/ipv6.h>
   9 #include <linux/netdevice.h>
  10 #include <linux/ip6_tunnel.h>
  11
  12 /* capable of sending packets */
  13 #define IP6_TNL_F_CAP_XMIT 0x10000
  14 /* capable of receiving packets */
  15 #define IP6_TNL_F_CAP_RCV 0x20000
  16
  17 #define IP6_TNL_MAX 128
  18
  19 /* IPv6 tunnel */
  20
  21 struct ip6_tnl {
  22         struct ip6_tnl *next;   /* next tunnel in list */
  23         struct net_device *dev; /* virtual device associated with tunnel */
  24         struct net_device_stats stat;   /* statistics for tunnel device */
  25         int recursion;          /* depth of hard_start_xmit recursion */
  26         struct ip6_tnl_parm parms;      /* tunnel configuration paramters */
  27         struct flowi fl;        /* flowi template for xmit */
  28         struct dst_entry *dst_cache;    /* cached dst */
  29         u32 dst_cookie;
  30 };
  31
  32 /* Tunnel encapsulation limit destination sub-option */
  33
  34 struct ipv6_tlv_tnl_enc_lim {
  35         __u8 type;              /* type-code for option         */
  36         __u8 length;            /* option length                */
  37         __u8 encap_limit;       /* tunnel encapsulation limit   */
  38 } __attribute__ ((packed));
  39
  40 #endif