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 parameters */ 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 41