1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | #ifndef _IP6_TUNNEL_H |
3 | #define _IP6_TUNNEL_H |
4 | |
5 | #include <linux/types.h> |
6 | #include <linux/if.h> /* For IFNAMSIZ. */ |
7 | #include <linux/in6.h> /* For struct in6_addr. */ |
8 | |
9 | #define IPV6_TLV_TNL_ENCAP_LIMIT 4 |
10 | #define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4 |
11 | |
12 | /* don't add encapsulation limit if one isn't present in inner packet */ |
13 | #define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1 |
14 | /* copy the traffic class field from the inner packet */ |
15 | #define IP6_TNL_F_USE_ORIG_TCLASS 0x2 |
16 | /* copy the flowlabel from the inner packet */ |
17 | #define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4 |
18 | /* being used for Mobile IPv6 */ |
19 | #define IP6_TNL_F_MIP6_DEV 0x8 |
20 | /* copy DSCP from the outer packet */ |
21 | #define IP6_TNL_F_RCV_DSCP_COPY 0x10 |
22 | /* copy fwmark from inner packet */ |
23 | #define IP6_TNL_F_USE_ORIG_FWMARK 0x20 |
24 | /* allow remote endpoint on the local node */ |
25 | #define IP6_TNL_F_ALLOW_LOCAL_REMOTE 0x40 |
26 | |
27 | struct ip6_tnl_parm { |
28 | char name[IFNAMSIZ]; /* name of tunnel device */ |
29 | int link; /* ifindex of underlying L2 interface */ |
30 | __u8 proto; /* tunnel protocol */ |
31 | __u8 encap_limit; /* encapsulation limit for tunnel */ |
32 | __u8 hop_limit; /* hop limit for tunnel */ |
33 | __be32 flowinfo; /* traffic class and flowlabel for tunnel */ |
34 | __u32 flags; /* tunnel flags */ |
35 | struct in6_addr laddr; /* local tunnel end-point address */ |
36 | struct in6_addr raddr; /* remote tunnel end-point address */ |
37 | }; |
38 | |
39 | struct ip6_tnl_parm2 { |
40 | char name[IFNAMSIZ]; /* name of tunnel device */ |
41 | int link; /* ifindex of underlying L2 interface */ |
42 | __u8 proto; /* tunnel protocol */ |
43 | __u8 encap_limit; /* encapsulation limit for tunnel */ |
44 | __u8 hop_limit; /* hop limit for tunnel */ |
45 | __be32 flowinfo; /* traffic class and flowlabel for tunnel */ |
46 | __u32 flags; /* tunnel flags */ |
47 | struct in6_addr laddr; /* local tunnel end-point address */ |
48 | struct in6_addr raddr; /* remote tunnel end-point address */ |
49 | |
50 | __be16 i_flags; |
51 | __be16 o_flags; |
52 | __be32 i_key; |
53 | __be32 o_key; |
54 | }; |
55 | |
56 | #endif |
57 | |