| Ben Cheng | 30692c6 | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 1 | #ifndef _IP6_TUNNEL_H |
| 2 | #define _IP6_TUNNEL_H |
| 3 | |
| 4 | #include <linux/types.h> |
| Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame^] | 5 | #include <linux/if.h> /* For IFNAMSIZ. */ |
| 6 | #include <linux/in6.h> /* For struct in6_addr. */ |
| Ben Cheng | 30692c6 | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 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 |