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302 lines
7.4 KiB
302 lines
7.4 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* Types and definitions for AF_INET6 |
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* Linux INET6 implementation |
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* |
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* Authors: |
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* Pedro Roque <[email protected]> |
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* |
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* Sources: |
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* IPv6 Program Interfaces for BSD Systems |
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* <draft-ietf-ipngwg-bsd-api-05.txt> |
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* |
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* Advanced Sockets API for IPv6 |
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* <draft-stevens-advanced-api-00.txt> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#ifndef _UAPI_LINUX_IN6_H |
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#define _UAPI_LINUX_IN6_H |
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#include <linux/types.h> |
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#include <linux/libc-compat.h> |
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/* |
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* IPv6 address structure |
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*/ |
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#if __UAPI_DEF_IN6_ADDR |
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struct in6_addr { |
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union { |
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__u8 u6_addr8[16]; |
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#if __UAPI_DEF_IN6_ADDR_ALT |
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__be16 u6_addr16[8]; |
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__be32 u6_addr32[4]; |
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#endif |
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} in6_u; |
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#define s6_addr in6_u.u6_addr8 |
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#if __UAPI_DEF_IN6_ADDR_ALT |
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#define s6_addr16 in6_u.u6_addr16 |
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#define s6_addr32 in6_u.u6_addr32 |
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#endif |
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}; |
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#endif /* __UAPI_DEF_IN6_ADDR */ |
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#if __UAPI_DEF_SOCKADDR_IN6 |
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struct sockaddr_in6 { |
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unsigned short int sin6_family; /* AF_INET6 */ |
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__be16 sin6_port; /* Transport layer port # */ |
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__be32 sin6_flowinfo; /* IPv6 flow information */ |
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struct in6_addr sin6_addr; /* IPv6 address */ |
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__u32 sin6_scope_id; /* scope id (new in RFC2553) */ |
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}; |
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#endif /* __UAPI_DEF_SOCKADDR_IN6 */ |
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#if __UAPI_DEF_IPV6_MREQ |
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struct ipv6_mreq { |
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/* IPv6 multicast address of group */ |
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struct in6_addr ipv6mr_multiaddr; |
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/* local IPv6 address of interface */ |
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int ipv6mr_ifindex; |
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}; |
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#endif /* __UAPI_DEF_IVP6_MREQ */ |
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#define ipv6mr_acaddr ipv6mr_multiaddr |
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struct in6_flowlabel_req { |
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struct in6_addr flr_dst; |
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__be32 flr_label; |
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__u8 flr_action; |
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__u8 flr_share; |
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__u16 flr_flags; |
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__u16 flr_expires; |
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__u16 flr_linger; |
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__u32 __flr_pad; |
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/* Options in format of IPV6_PKTOPTIONS */ |
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}; |
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#define IPV6_FL_A_GET 0 |
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#define IPV6_FL_A_PUT 1 |
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#define IPV6_FL_A_RENEW 2 |
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#define IPV6_FL_F_CREATE 1 |
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#define IPV6_FL_F_EXCL 2 |
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#define IPV6_FL_F_REFLECT 4 |
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#define IPV6_FL_F_REMOTE 8 |
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#define IPV6_FL_S_NONE 0 |
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#define IPV6_FL_S_EXCL 1 |
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#define IPV6_FL_S_PROCESS 2 |
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#define IPV6_FL_S_USER 3 |
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#define IPV6_FL_S_ANY 255 |
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/* |
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* Bitmask constant declarations to help applications select out the |
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* flow label and priority fields. |
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* |
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* Note that this are in host byte order while the flowinfo field of |
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* sockaddr_in6 is in network byte order. |
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*/ |
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#define IPV6_FLOWINFO_FLOWLABEL 0x000fffff |
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#define IPV6_FLOWINFO_PRIORITY 0x0ff00000 |
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/* These definitions are obsolete */ |
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#define IPV6_PRIORITY_UNCHARACTERIZED 0x0000 |
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#define IPV6_PRIORITY_FILLER 0x0100 |
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#define IPV6_PRIORITY_UNATTENDED 0x0200 |
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#define IPV6_PRIORITY_RESERVED1 0x0300 |
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#define IPV6_PRIORITY_BULK 0x0400 |
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#define IPV6_PRIORITY_RESERVED2 0x0500 |
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#define IPV6_PRIORITY_INTERACTIVE 0x0600 |
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#define IPV6_PRIORITY_CONTROL 0x0700 |
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#define IPV6_PRIORITY_8 0x0800 |
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#define IPV6_PRIORITY_9 0x0900 |
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#define IPV6_PRIORITY_10 0x0a00 |
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#define IPV6_PRIORITY_11 0x0b00 |
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#define IPV6_PRIORITY_12 0x0c00 |
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#define IPV6_PRIORITY_13 0x0d00 |
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#define IPV6_PRIORITY_14 0x0e00 |
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#define IPV6_PRIORITY_15 0x0f00 |
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/* |
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* IPV6 extension headers |
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*/ |
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#if __UAPI_DEF_IPPROTO_V6 |
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#define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */ |
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#define IPPROTO_ROUTING 43 /* IPv6 routing header */ |
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#define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */ |
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#define IPPROTO_ICMPV6 58 /* ICMPv6 */ |
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#define IPPROTO_NONE 59 /* IPv6 no next header */ |
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#define IPPROTO_DSTOPTS 60 /* IPv6 destination options */ |
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#define IPPROTO_MH 135 /* IPv6 mobility header */ |
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#endif /* __UAPI_DEF_IPPROTO_V6 */ |
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/* |
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* IPv6 TLV options. |
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*/ |
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#define IPV6_TLV_PAD1 0 |
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#define IPV6_TLV_PADN 1 |
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#define IPV6_TLV_ROUTERALERT 5 |
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#define IPV6_TLV_CALIPSO 7 /* RFC 5570 */ |
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#define IPV6_TLV_IOAM 49 /* TEMPORARY IANA allocation for IOAM */ |
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#define IPV6_TLV_JUMBO 194 |
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#define IPV6_TLV_HAO 201 /* home address option */ |
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/* |
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* IPV6 socket options |
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*/ |
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#if __UAPI_DEF_IPV6_OPTIONS |
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#define IPV6_ADDRFORM 1 |
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#define IPV6_2292PKTINFO 2 |
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#define IPV6_2292HOPOPTS 3 |
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#define IPV6_2292DSTOPTS 4 |
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#define IPV6_2292RTHDR 5 |
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#define IPV6_2292PKTOPTIONS 6 |
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#define IPV6_CHECKSUM 7 |
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#define IPV6_2292HOPLIMIT 8 |
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#define IPV6_NEXTHOP 9 |
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#define IPV6_AUTHHDR 10 /* obsolete */ |
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#define IPV6_FLOWINFO 11 |
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#define IPV6_UNICAST_HOPS 16 |
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#define IPV6_MULTICAST_IF 17 |
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#define IPV6_MULTICAST_HOPS 18 |
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#define IPV6_MULTICAST_LOOP 19 |
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#define IPV6_ADD_MEMBERSHIP 20 |
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#define IPV6_DROP_MEMBERSHIP 21 |
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#define IPV6_ROUTER_ALERT 22 |
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#define IPV6_MTU_DISCOVER 23 |
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#define IPV6_MTU 24 |
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#define IPV6_RECVERR 25 |
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#define IPV6_V6ONLY 26 |
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#define IPV6_JOIN_ANYCAST 27 |
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#define IPV6_LEAVE_ANYCAST 28 |
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#define IPV6_MULTICAST_ALL 29 |
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#define IPV6_ROUTER_ALERT_ISOLATE 30 |
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#define IPV6_RECVERR_RFC4884 31 |
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/* IPV6_MTU_DISCOVER values */ |
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#define IPV6_PMTUDISC_DONT 0 |
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#define IPV6_PMTUDISC_WANT 1 |
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#define IPV6_PMTUDISC_DO 2 |
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#define IPV6_PMTUDISC_PROBE 3 |
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/* same as IPV6_PMTUDISC_PROBE, provided for symetry with IPv4 |
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* also see comments on IP_PMTUDISC_INTERFACE |
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*/ |
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#define IPV6_PMTUDISC_INTERFACE 4 |
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/* weaker version of IPV6_PMTUDISC_INTERFACE, which allows packets to |
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* get fragmented if they exceed the interface mtu |
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*/ |
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#define IPV6_PMTUDISC_OMIT 5 |
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/* Flowlabel */ |
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#define IPV6_FLOWLABEL_MGR 32 |
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#define IPV6_FLOWINFO_SEND 33 |
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#define IPV6_IPSEC_POLICY 34 |
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#define IPV6_XFRM_POLICY 35 |
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#define IPV6_HDRINCL 36 |
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#endif |
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/* |
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* Multicast: |
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* Following socket options are shared between IPv4 and IPv6. |
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* |
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* MCAST_JOIN_GROUP 42 |
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* MCAST_BLOCK_SOURCE 43 |
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* MCAST_UNBLOCK_SOURCE 44 |
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* MCAST_LEAVE_GROUP 45 |
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* MCAST_JOIN_SOURCE_GROUP 46 |
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* MCAST_LEAVE_SOURCE_GROUP 47 |
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* MCAST_MSFILTER 48 |
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*/ |
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/* |
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* Advanced API (RFC3542) (1) |
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* |
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* Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c. |
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*/ |
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#define IPV6_RECVPKTINFO 49 |
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#define IPV6_PKTINFO 50 |
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#define IPV6_RECVHOPLIMIT 51 |
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#define IPV6_HOPLIMIT 52 |
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#define IPV6_RECVHOPOPTS 53 |
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#define IPV6_HOPOPTS 54 |
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#define IPV6_RTHDRDSTOPTS 55 |
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#define IPV6_RECVRTHDR 56 |
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#define IPV6_RTHDR 57 |
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#define IPV6_RECVDSTOPTS 58 |
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#define IPV6_DSTOPTS 59 |
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#define IPV6_RECVPATHMTU 60 |
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#define IPV6_PATHMTU 61 |
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#define IPV6_DONTFRAG 62 |
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#if 0 /* not yet */ |
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#define IPV6_USE_MIN_MTU 63 |
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#endif |
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/* |
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* Netfilter (1) |
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* |
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* Following socket options are used in ip6_tables; |
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* see include/linux/netfilter_ipv6/ip6_tables.h. |
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* |
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* IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO 64 |
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* IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES 65 |
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*/ |
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/* |
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* Advanced API (RFC3542) (2) |
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*/ |
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#define IPV6_RECVTCLASS 66 |
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#define IPV6_TCLASS 67 |
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/* |
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* Netfilter (2) |
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* |
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* Following socket options are used in ip6_tables; |
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* see include/linux/netfilter_ipv6/ip6_tables.h. |
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* |
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* IP6T_SO_GET_REVISION_MATCH 68 |
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* IP6T_SO_GET_REVISION_TARGET 69 |
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* IP6T_SO_ORIGINAL_DST 80 |
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*/ |
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#define IPV6_AUTOFLOWLABEL 70 |
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/* RFC5014: Source address selection */ |
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#define IPV6_ADDR_PREFERENCES 72 |
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#define IPV6_PREFER_SRC_TMP 0x0001 |
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#define IPV6_PREFER_SRC_PUBLIC 0x0002 |
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#define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100 |
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#define IPV6_PREFER_SRC_COA 0x0004 |
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#define IPV6_PREFER_SRC_HOME 0x0400 |
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#define IPV6_PREFER_SRC_CGA 0x0008 |
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#define IPV6_PREFER_SRC_NONCGA 0x0800 |
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/* RFC5082: Generalized Ttl Security Mechanism */ |
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#define IPV6_MINHOPCOUNT 73 |
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#define IPV6_ORIGDSTADDR 74 |
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#define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR |
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#define IPV6_TRANSPARENT 75 |
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#define IPV6_UNICAST_IF 76 |
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#define IPV6_RECVFRAGSIZE 77 |
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#define IPV6_FREEBIND 78 |
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/* |
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* Multicast Routing: |
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* see include/uapi/linux/mroute6.h. |
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* |
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* MRT6_BASE 200 |
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* ... |
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* MRT6_MAX |
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*/ |
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#endif /* _UAPI_LINUX_IN6_H */
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