- /*
- * 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];
- __u16 u6_addr16[8];
- __u32 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
- };
- struct sockaddr_in6 {
- unsigned short int sin6_family; /* AF_INET6 */
- __u16 sin6_port; /* Transport layer port # */
- __u32 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;
- };
- struct in6_flowlabel_req
- {
- struct in6_addr flr_dst;
- __u32 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 defintions 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 */
- /*
- * IPv6 TLV options.
- */
- #define IPV6_TLV_PAD0 0
- #define IPV6_TLV_PADN 1
- #define IPV6_TLV_ROUTERALERT 5
- #define IPV6_TLV_JUMBO 194
- /*
- * IPV6 socket options
- */
- #define IPV6_ADDRFORM 1
- #define IPV6_PKTINFO 2
- #define IPV6_HOPOPTS 3
- #define IPV6_DSTOPTS 4
- #define IPV6_RTHDR 5
- #define IPV6_PKTOPTIONS 6
- #define IPV6_CHECKSUM 7
- #define IPV6_HOPLIMIT 8
- #define IPV6_NEXTHOP 9
- #define IPV6_AUTHHDR 10
- #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
- /* IPV6_MTU_DISCOVER values */
- #define IPV6_PMTUDISC_DONT 0
- #define IPV6_PMTUDISC_WANT 1
- #define IPV6_PMTUDISC_DO 2
- /* Flowlabel */
- #define IPV6_FLOWLABEL_MGR 32
- #define IPV6_FLOWINFO_SEND 33
- #endif