Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
ip6_tunnel.h
Go to the documentation of this file.
1 #ifndef _IP6_TUNNEL_H
2 #define _IP6_TUNNEL_H
3 
4 #include <linux/types.h>
5 
6 #define IPV6_TLV_TNL_ENCAP_LIMIT 4
7 #define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4
8 
9 /* don't add encapsulation limit if one isn't present in inner packet */
10 #define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1
11 /* copy the traffic class field from the inner packet */
12 #define IP6_TNL_F_USE_ORIG_TCLASS 0x2
13 /* copy the flowlabel from the inner packet */
14 #define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4
15 /* being used for Mobile IPv6 */
16 #define IP6_TNL_F_MIP6_DEV 0x8
17 /* copy DSCP from the outer packet */
18 #define IP6_TNL_F_RCV_DSCP_COPY 0x10
19 /* copy fwmark from inner packet */
20 #define IP6_TNL_F_USE_ORIG_FWMARK 0x20
21 
22 struct ip6_tnl_parm {
23  char name[IFNAMSIZ]; /* name of tunnel device */
24  int link; /* ifindex of underlying L2 interface */
25  __u8 proto; /* tunnel protocol */
26  __u8 encap_limit; /* encapsulation limit for tunnel */
27  __u8 hop_limit; /* hop limit for tunnel */
28  __be32 flowinfo; /* traffic class and flowlabel for tunnel */
29  __u32 flags; /* tunnel flags */
30  struct in6_addr laddr; /* local tunnel end-point address */
31  struct in6_addr raddr; /* remote tunnel end-point address */
32 };
33 
34 struct ip6_tnl_parm2 {
35  char name[IFNAMSIZ]; /* name of tunnel device */
36  int link; /* ifindex of underlying L2 interface */
37  __u8 proto; /* tunnel protocol */
38  __u8 encap_limit; /* encapsulation limit for tunnel */
39  __u8 hop_limit; /* hop limit for tunnel */
40  __be32 flowinfo; /* traffic class and flowlabel for tunnel */
41  __u32 flags; /* tunnel flags */
42  struct in6_addr laddr; /* local tunnel end-point address */
43  struct in6_addr raddr; /* remote tunnel end-point address */
44 
49 };
50 
51 #endif