| /* |
| * Types and definitions for AF_INET6 |
| * Linux INET6 implementation |
| * |
| * Authors: |
| * Pedro Roque <roque@di.fc.ul.pt> |
| * |
| * Sources: |
| * IPv6 Program Interfaces for BSD Systems |
| * <draft-ietf-ipngwg-bsd-api-05.txt> |
| * |
| * Advanced Sockets API for IPv6 |
| * <draft-stevens-advanced-api-00.txt> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #ifndef _LINUX_IN6_H |
| #define _LINUX_IN6_H |
| |
| #include <linux/types.h> |
| |
| /* |
| * IPv6 address structure |
| */ |
| |
| struct in6_addr { |
| union { |
| __u8 u6_addr8[16]; |
| __be16 u6_addr16[8]; |
| __be32 u6_addr32[4]; |
| } in6_u; |
| #define s6_addr in6_u.u6_addr8 |
| #define s6_addr16 in6_u.u6_addr16 |
| #define s6_addr32 in6_u.u6_addr32 |
| }; |
| |
| /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553 |
| * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined |
| * in network byte order, not in host byte order as are the IPv4 equivalents |
| */ |
| |
| struct sockaddr_in6 { |
| unsigned short int sin6_family; /* AF_INET6 */ |
| __be16 sin6_port; /* Transport layer port # */ |
| __be32 sin6_flowinfo; /* IPv6 flow information */ |
| struct in6_addr sin6_addr; /* IPv6 address */ |
| __u32 sin6_scope_id; /* scope id (new in RFC2553) */ |
| }; |
| |
| struct ipv6_mreq { |
| /* IPv6 multicast address of group */ |
| struct in6_addr ipv6mr_multiaddr; |
| |
| /* local IPv6 address of interface */ |
| int ipv6mr_ifindex; |
| }; |
| |
| #define ipv6mr_acaddr ipv6mr_multiaddr |
| |
| struct in6_flowlabel_req { |
| struct in6_addr flr_dst; |
| __be32 flr_label; |
| __u8 flr_action; |
| __u8 flr_share; |
| __u16 flr_flags; |
| __u16 flr_expires; |
| __u16 flr_linger; |
| __u32 __flr_pad; |
| /* Options in format of IPV6_PKTOPTIONS */ |
| }; |
| |
| #define IPV6_FL_A_GET 0 |
| #define IPV6_FL_A_PUT 1 |
| #define IPV6_FL_A_RENEW 2 |
| |
| #define IPV6_FL_F_CREATE 1 |
| #define IPV6_FL_F_EXCL 2 |
| |
| #define IPV6_FL_S_NONE 0 |
| #define IPV6_FL_S_EXCL 1 |
| #define IPV6_FL_S_PROCESS 2 |
| #define IPV6_FL_S_USER 3 |
| #define IPV6_FL_S_ANY 255 |
| |
| |
| /* |
| * Bitmask constant declarations to help applications select out the |
| * flow label and priority fields. |
| * |
| * Note that this are in host byte order while the flowinfo field of |
| * sockaddr_in6 is in network byte order. |
| */ |
| |
| #define IPV6_FLOWINFO_FLOWLABEL 0x000fffff |
| #define IPV6_FLOWINFO_PRIORITY 0x0ff00000 |
| |
| /* These definitions are obsolete */ |
| #define IPV6_PRIORITY_UNCHARACTERIZED 0x0000 |
| #define IPV6_PRIORITY_FILLER 0x0100 |
| #define IPV6_PRIORITY_UNATTENDED 0x0200 |
| #define IPV6_PRIORITY_RESERVED1 0x0300 |
| #define IPV6_PRIORITY_BULK 0x0400 |
| #define IPV6_PRIORITY_RESERVED2 0x0500 |
| #define IPV6_PRIORITY_INTERACTIVE 0x0600 |
| #define IPV6_PRIORITY_CONTROL 0x0700 |
| #define IPV6_PRIORITY_8 0x0800 |
| #define IPV6_PRIORITY_9 0x0900 |
| #define IPV6_PRIORITY_10 0x0a00 |
| #define IPV6_PRIORITY_11 0x0b00 |
| #define IPV6_PRIORITY_12 0x0c00 |
| #define IPV6_PRIORITY_13 0x0d00 |
| #define IPV6_PRIORITY_14 0x0e00 |
| #define IPV6_PRIORITY_15 0x0f00 |
| |
| /* |
| * IPV6 extension headers |
| */ |
| #define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */ |
| #define IPPROTO_ROUTING 43 /* IPv6 routing header */ |
| #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */ |
| #define IPPROTO_ICMPV6 58 /* ICMPv6 */ |
| #define IPPROTO_NONE 59 /* IPv6 no next header */ |
| #define IPPROTO_DSTOPTS 60 /* IPv6 destination options */ |
| #define IPPROTO_MH 135 /* IPv6 mobility header */ |
| |
| /* |
| * IPv6 TLV options. |
| */ |
| #define IPV6_TLV_PAD0 0 |
| #define IPV6_TLV_PADN 1 |
| #define IPV6_TLV_ROUTERALERT 5 |
| #define IPV6_TLV_JUMBO 194 |
| #define IPV6_TLV_HAO 201 /* home address option */ |
| |
| /* |
| * IPV6 socket options |
| */ |
| |
| #define IPV6_ADDRFORM 1 |
| #define IPV6_2292PKTINFO 2 |
| #define IPV6_2292HOPOPTS 3 |
| #define IPV6_2292DSTOPTS 4 |
| #define IPV6_2292RTHDR 5 |
| #define IPV6_2292PKTOPTIONS 6 |
| #define IPV6_CHECKSUM 7 |
| #define IPV6_2292HOPLIMIT 8 |
| #define IPV6_NEXTHOP 9 |
| #define IPV6_AUTHHDR 10 /* obsolete */ |
| #define IPV6_FLOWINFO 11 |
| |
| #define IPV6_UNICAST_HOPS 16 |
| #define IPV6_MULTICAST_IF 17 |
| #define IPV6_MULTICAST_HOPS 18 |
| #define IPV6_MULTICAST_LOOP 19 |
| #define IPV6_ADD_MEMBERSHIP 20 |
| #define IPV6_DROP_MEMBERSHIP 21 |
| #define IPV6_ROUTER_ALERT 22 |
| #define IPV6_MTU_DISCOVER 23 |
| #define IPV6_MTU 24 |
| #define IPV6_RECVERR 25 |
| #define IPV6_V6ONLY 26 |
| #define IPV6_JOIN_ANYCAST 27 |
| #define IPV6_LEAVE_ANYCAST 28 |
| |
| /* IPV6_MTU_DISCOVER values */ |
| #define IPV6_PMTUDISC_DONT 0 |
| #define IPV6_PMTUDISC_WANT 1 |
| #define IPV6_PMTUDISC_DO 2 |
| #define IPV6_PMTUDISC_PROBE 3 |
| |
| /* Flowlabel */ |
| #define IPV6_FLOWLABEL_MGR 32 |
| #define IPV6_FLOWINFO_SEND 33 |
| |
| #define IPV6_IPSEC_POLICY 34 |
| #define IPV6_XFRM_POLICY 35 |
| |
| /* |
| * Multicast: |
| * Following socket options are shared between IPv4 and IPv6. |
| * |
| * MCAST_JOIN_GROUP 42 |
| * MCAST_BLOCK_SOURCE 43 |
| * MCAST_UNBLOCK_SOURCE 44 |
| * MCAST_LEAVE_GROUP 45 |
| * MCAST_JOIN_SOURCE_GROUP 46 |
| * MCAST_LEAVE_SOURCE_GROUP 47 |
| * MCAST_MSFILTER 48 |
| */ |
| |
| /* |
| * Advanced API (RFC3542) (1) |
| * |
| * Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c. |
| */ |
| |
| #define IPV6_RECVPKTINFO 49 |
| #define IPV6_PKTINFO 50 |
| #define IPV6_RECVHOPLIMIT 51 |
| #define IPV6_HOPLIMIT 52 |
| #define IPV6_RECVHOPOPTS 53 |
| #define IPV6_HOPOPTS 54 |
| #define IPV6_RTHDRDSTOPTS 55 |
| #define IPV6_RECVRTHDR 56 |
| #define IPV6_RTHDR 57 |
| #define IPV6_RECVDSTOPTS 58 |
| #define IPV6_DSTOPTS 59 |
| #define IPV6_RECVPATHMTU 60 |
| #define IPV6_PATHMTU 61 |
| #define IPV6_DONTFRAG 62 |
| #if 0 /* not yet */ |
| #define IPV6_USE_MIN_MTU 63 |
| #endif |
| |
| /* |
| * Netfilter (1) |
| * |
| * Following socket options are used in ip6_tables; |
| * see include/linux/netfilter_ipv6/ip6_tables.h. |
| * |
| * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO 64 |
| * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES 65 |
| */ |
| |
| /* |
| * Advanced API (RFC3542) (2) |
| */ |
| #define IPV6_RECVTCLASS 66 |
| #define IPV6_TCLASS 67 |
| |
| /* |
| * Netfilter (2) |
| * |
| * Following socket options are used in ip6_tables; |
| * see include/linux/netfilter_ipv6/ip6_tables.h. |
| * |
| * IP6T_SO_GET_REVISION_MATCH 68 |
| * IP6T_SO_GET_REVISION_TARGET 69 |
| */ |
| |
| /* RFC5014: Source address selection */ |
| #define IPV6_ADDR_PREFERENCES 72 |
| |
| #define IPV6_PREFER_SRC_TMP 0x0001 |
| #define IPV6_PREFER_SRC_PUBLIC 0x0002 |
| #define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100 |
| #define IPV6_PREFER_SRC_COA 0x0004 |
| #define IPV6_PREFER_SRC_HOME 0x0400 |
| #define IPV6_PREFER_SRC_CGA 0x0008 |
| #define IPV6_PREFER_SRC_NONCGA 0x0800 |
| |
| /* RFC5082: Generalized Ttl Security Mechanism */ |
| #define IPV6_MINHOPCOUNT 73 |
| |
| #define IPV6_ORIGDSTADDR 74 |
| #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR |
| #define IPV6_TRANSPARENT 75 |
| |
| /* |
| * Multicast Routing: |
| * see include/linux/mroute6.h. |
| * |
| * MRT6_INIT 200 |
| * MRT6_DONE 201 |
| * MRT6_ADD_MIF 202 |
| * MRT6_DEL_MIF 203 |
| * MRT6_ADD_MFC 204 |
| * MRT6_DEL_MFC 205 |
| * MRT6_VERSION 206 |
| * MRT6_ASSERT 207 |
| * MRT6_PIM 208 |
| * (reserved) 209 |
| */ |
| #endif |