202 lines
4.9 KiB
C
202 lines
4.9 KiB
C
/*
|
|
* 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
|
|
};
|
|
|
|
/* 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
|
|
*/
|
|
#if 0
|
|
extern const struct in6_addr in6addr_any;
|
|
#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
|
|
#endif
|
|
extern const struct in6_addr in6addr_loopback;
|
|
#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
|
|
|
|
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;
|
|
};
|
|
|
|
#define ipv6mr_acaddr ipv6mr_multiaddr
|
|
|
|
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
|
|
#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
|
|
|
|
/* 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
|
|
*/
|
|
|
|
#endif
|