/* * Copyright (c) 1993, 1994, 1997 *	The Regents of the University of California.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#) $Header: /tcpdump/master/libpcap/win32/include/ip6_misc.h,v 1.0 2000/08/31 13:27:10 mcr Exp $ (LBL) *//* * This file contains a collage of declarations for IPv6 from FreeBSD not present in Windows */#ifndef	_NETINET_IN_H#define	_NETINET_IN_H	1#endif#include <winsock2.h>#ifdef HAVE_ADDRINFO#include <ws2tcpip.h>#include <tpipv6.h>#endif /* HAVE_ADDRINFO */#define	IN_MULTICAST(a)		IN_CLASSD(a)#define	IN_EXPERIMENTAL(a)	((((u_int32_t) (a)) & 0xe0000000) == 0xe0000000)#define	IN_LOOPBACKNET		127#ifndef HAVE_ADDRINFO
/* IPv6 address */struct in6_addr  {    union      {	u_int8_t		u6_addr8[16];	u_int16_t	u6_addr16[8];	u_int32_t	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#define s6_addr64		in6_u.u6_addr64  };extern const struct in6_addr in6addr_any;        /* :: */extern const struct in6_addr in6addr_loopback;   /* ::1 */#define IN6ADDR_ANY_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }#define IN6ADDR_LOOPBACK_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }#endif /* HAVE_ADDRINFO */#define INET_ADDRSTRLEN 16#define INET6_ADDRSTRLEN 46#ifndef HAVE_ADDRINFOtypedef unsigned short	sa_family_t;#define	__SOCKADDR_COMMON(sa_prefix) \  sa_family_t sa_prefix##family/* Ditto, for IPv6.  */struct sockaddr_in6  {    __SOCKADDR_COMMON (sin6_);    u_int16_t sin6_port;		/* Transport layer port # */    u_int32_t sin6_flowinfo;	/* IPv6 flow information */    struct in6_addr sin6_addr;	/* IPv6 address */  };#define IN6_IS_ADDR_V4MAPPED(a) \	((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \	 (((u_int32_t *) (a))[2] == htonl (0xffff)))#define IN6_IS_ADDR_MULTICAST(a) (((u_int8_t *) (a))[0] == 0xff)#define IN6_IS_ADDR_LINKLOCAL(a) \	((((u_int32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfe800000))#define IN6_IS_ADDR_LOOPBACK(a) \	(((u_int32_t *) (a))[0] == 0 && ((u_int32_t *) (a))[1] == 0 && \	 ((u_int32_t *) (a))[2] == 0 && ((u_int32_t *) (a))[3] == htonl (1))#endif /* HAVE_ADDRINFO */struct ip6_hdr   {    union       {	struct ip6_hdrctl 	  {	    u_int32_t ip6_un1_flow;   /* 24 bits of flow-ID */	    u_int16_t ip6_un1_plen;   /* payload length */	    u_int8_t  ip6_un1_nxt;    /* next header */	    u_int8_t  ip6_un1_hlim;   /* hop limit */	  } ip6_un1;	u_int8_t ip6_un2_vfc;       /* 4 bits version, 4 bits priority */      } ip6_ctlun;    struct in6_addr ip6_src;      /* source address */    struct in6_addr ip6_dst;      /* destination address */  };/* Fragment header */struct ip6_frag   {    u_int8_t   ip6f_nxt;       /* next header */    u_int8_t   ip6f_reserved;  /* reserved field */    u_int16_t  ip6f_offlg;     /* offset, reserved, and flag */    u_int32_t  ip6f_ident;     /* identification */  };#define ip6_vfc   ip6_ctlun.ip6_un2_vfc#define ip6_flow  ip6_ctlun.ip6_un1.ip6_un1_flow#define ip6_plen  ip6_ctlun.ip6_un1.ip6_un1_plen#define ip6_nxt   ip6_ctlun.ip6_un1.ip6_un1_nxt#define ip6_hlim  ip6_ctlun.ip6_un1.ip6_un1_hlim#define ip6_hops  ip6_ctlun.ip6_un1.ip6_un1_hlim#define IP6F_OFF_MASK       0xf8ff  /* mask out offset from _offlg */#define IP6F_RESERVED_MASK  0x0600  /* reserved bits in ip6f_offlg */#define IP6F_MORE_FRAG      0x0100  /* more-fragments flag */struct icmp6_hdr   {    u_int8_t     icmp6_type;   /* type field */    u_int8_t     icmp6_code;   /* code field */    u_int16_t    icmp6_cksum;  /* checksum field */    union       {	u_int32_t  icmp6_un_data32[1]; /* type-specific field */	u_int16_t  icmp6_un_data16[2]; /* type-specific field */	u_int8_t   icmp6_un_data8[4];  /* type-specific field */      } icmp6_dataun;  }; #define icmp6_data32    icmp6_dataun.icmp6_un_data32#define icmp6_data16    icmp6_dataun.icmp6_un_data16#define icmp6_data8     icmp6_dataun.icmp6_un_data8#define icmp6_pptr      icmp6_data32[0]  /* parameter prob */#define icmp6_mtu       icmp6_data32[0]  /* packet too big */#define icmp6_id        icmp6_data16[0]  /* echo request/reply */#define icmp6_seq       icmp6_data16[1]  /* echo request/reply */#define icmp6_maxdelay  icmp6_data16[0]  /* mcast group membership */#define ICMP6_DST_UNREACH             1#define ICMP6_PACKET_TOO_BIG          2#define ICMP6_TIME_EXCEEDED           3#define ICMP6_PARAM_PROB              4#define ICMP6_INFOMSG_MASK  0x80    /* all informational messages */#define ICMP6_ECHO_REQUEST          128#define ICMP6_ECHO_REPLY            129#define ICMP6_MEMBERSHIP_QUERY      130#define ICMP6_MEMBERSHIP_REPORT     131#define ICMP6_MEMBERSHIP_REDUCTION  132#define ICMP6_DST_UNREACH_NOROUTE     0 /* no route to destination */#define ICMP6_DST_UNREACH_ADMIN       1 /* communication with destination */                                        /* administratively prohibited */#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor */#define ICMP6_DST_UNREACH_ADDR        3 /* address unreachable */#define ICMP6_DST_UNREACH_NOPORT      4 /* bad port */#define ICMP6_TIME_EXCEED_TRANSIT     0 /* Hop Limit == 0 in transit */#define ICMP6_TIME_EXCEED_REASSEMBLY  1 /* Reassembly time out */#define ICMP6_PARAMPROB_HEADER        0 /* erroneous header field */#define ICMP6_PARAMPROB_NEXTHEADER    1 /* unrecognized Next Header */#define ICMP6_PARAMPROB_OPTION        2 /* unrecognized IPv6 option */#define ICMP6_FILTER_WILLPASS(type, filterp) \	((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) == 0)#define ICMP6_FILTER_WILLBLOCK(type, filterp) \	((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) != 0)#define ICMP6_FILTER_SETPASS(type, filterp) \	((((filterp)->data[(type) >> 5]) &= ~(1 << ((type) & 31))))#define ICMP6_FILTER_SETBLOCK(type, filterp) \	((((filterp)->data[(type) >> 5]) |=  (1 << ((type) & 31))))#define ICMP6_FILTER_SETPASSALL(filterp) \	memset (filterp, 0, sizeof (struct icmp6_filter));#define ICMP6_FILTER_SETBLOCKALL(filterp) \	memset (filterp, 0xFF, sizeof (struct icmp6_filter));#define ND_ROUTER_SOLICIT           133#define ND_ROUTER_ADVERT            134#define ND_NEIGHBOR_SOLICIT         135#define ND_NEIGHBOR_ADVERT          136#define ND_REDIRECT                 137struct nd_router_solicit      /* router solicitation */  {    struct icmp6_hdr  nd_rs_hdr;    /* could be followed by options */  };#define nd_rs_type               nd_rs_hdr.icmp6_type#define nd_rs_code               nd_rs_hdr.icmp6_code#define nd_rs_cksum              nd_rs_hdr.icmp6_cksum#define nd_rs_reserved           nd_rs_hdr.icmp6_data32[0]struct nd_router_advert       /* router advertisement */  {    struct icmp6_hdr  nd_ra_hdr;    u_int32_t   nd_ra_reachable;   /* reachable time */    u_int32_t   nd_ra_retransmit;  /* retransmit timer */    /* could be followed by options */  };#define nd_ra_type               nd_ra_hdr.icmp6_type#define nd_ra_code               nd_ra_hdr.icmp6_code#define nd_ra_cksum              nd_ra_hdr.icmp6_cksum#define nd_ra_curhoplimit        nd_ra_hdr.icmp6_data8[0]#define nd_ra_flags_reserved     nd_ra_hdr.icmp6_data8[1]#define ND_RA_FLAG_MANAGED       0x80#define ND_RA_FLAG_OTHER         0x40#define nd_ra_router_lifetime    nd_ra_hdr.icmp6_data16[1]struct nd_neighbor_solicit    /* neighbor solicitation */  {    struct icmp6_hdr  nd_ns_hdr;    struct in6_addr   nd_ns_target; /* target address */    /* could be followed by options */  };#define nd_ns_type               nd_ns_hdr.icmp6_type#define nd_ns_code               nd_ns_hdr.icmp6_code#define nd_ns_cksum              nd_ns_hdr.icmp6_cksum#define nd_ns_reserved           nd_ns_hdr.icmp6_data32[0]struct nd_neighbor_advert     /* neighbor advertisement */  {    struct icmp6_hdr  nd_na_hdr;    struct in6_addr   nd_na_target; /* target address */    /* could be followed by options */  };#define nd_na_type               nd_na_hdr.icmp6_type#define nd_na_code               nd_na_hdr.icmp6_code#define nd_na_cksum              nd_na_hdr.icmp6_cksum#define nd_na_flags_reserved     nd_na_hdr.icmp6_data32[0]#if     BYTE_ORDER == BIG_ENDIAN#define ND_NA_FLAG_ROUTER        0x80000000#define ND_NA_FLAG_SOLICITED     0x40000000#define ND_NA_FLAG_OVERRIDE      0x20000000#else   /* BYTE_ORDER == LITTLE_ENDIAN */#define ND_NA_FLAG_ROUTER        0x00000080#define ND_NA_FLAG_SOLICITED     0x00000040#define ND_NA_FLAG_OVERRIDE      0x00000020#endifstruct nd_redirect            /* redirect */  {    struct icmp6_hdr  nd_rd_hdr;    struct in6_addr   nd_rd_target; /* target address */    struct in6_addr   nd_rd_dst;    /* destination address */    /* could be followed by options */  }; #define nd_rd_type               nd_rd_hdr.icmp6_type#define nd_rd_code               nd_rd_hdr.icmp6_code#define nd_rd_cksum              nd_rd_hdr.icmp6_cksum#define nd_rd_reserved           nd_rd_hdr.icmp6_data32[0]struct nd_opt_hdr             /* Neighbor discovery option header */  {    u_int8_t  nd_opt_type;    u_int8_t  nd_opt_len;        /* in units of 8 octets */    /* followed by option specific data */  };#define  ND_OPT_SOURCE_LINKADDR       1#define  ND_OPT_TARGET_LINKADDR       2#define  ND_OPT_PREFIX_INFORMATION    3#define  ND_OPT_REDIRECTED_HEADER     4#define  ND_OPT_MTU                   5struct nd_opt_prefix_info     /* prefix information */  {    u_int8_t   nd_opt_pi_type;    u_int8_t   nd_opt_pi_len;    u_int8_t   nd_opt_pi_prefix_len;    u_int8_t   nd_opt_pi_flags_reserved;    u_int32_t  nd_opt_pi_valid_time;    u_int32_t  nd_opt_pi_preferred_time;    u_int32_t  nd_opt_pi_reserved2;    struct in6_addr  nd_opt_pi_prefix;  };#define ND_OPT_PI_FLAG_ONLINK        0x80#define ND_OPT_PI_FLAG_AUTO          0x40struct nd_opt_rd_hdr          /* redirected header */  {    u_int8_t   nd_opt_rh_type;    u_int8_t   nd_opt_rh_len;    u_int16_t  nd_opt_rh_reserved1;    u_int32_t  nd_opt_rh_reserved2;    /* followed by IP header and data */  };struct nd_opt_mtu             /* MTU option */  {    u_int8_t   nd_opt_mtu_type;    u_int8_t   nd_opt_mtu_len;    u_int16_t  nd_opt_mtu_reserved;    u_int32_t  nd_opt_mtu_mtu;  };/* *	IPV6 extension headers */#define IPPROTO_HOPOPTS		0	/* IPv6 hop-by-hop options	*/#define IPPROTO_IPV6		41  /* IPv6 header.  */#define IPPROTO_ROUTING		43	/* IPv6 routing header		*/#define IPPROTO_FRAGMENT	44	/* IPv6 fragmentation header	*/#define IPPROTO_ESP		50	/* encapsulating security payload */#define IPPROTO_AH		51	/* authentication header	*/#define IPPROTO_ICMPV6		58	/* ICMPv6			*/#define IPPROTO_NONE		59	/* IPv6 no next header		*/#define IPPROTO_DSTOPTS		60	/* IPv6 destination options	*/#define IPPROTO_PIM			103 /* Protocol Independent Multicast.  *//* Routing header */struct ip6_rthdr   {    u_int8_t  ip6r_nxt;        /* next header */    u_int8_t  ip6r_len;        /* length in units of 8 octets */    u_int8_t  ip6r_type;       /* routing type */    u_int8_t  ip6r_segleft;    /* segments left */    /* followed by routing type specific data */  };/* Type 0 Routing header */struct ip6_rthdr0   {    u_int8_t  ip6r0_nxt;       /* next header */    u_int8_t  ip6r0_len;       /* length in units of 8 octets */    u_int8_t  ip6r0_type;      /* always zero */    u_int8_t  ip6r0_segleft;   /* segments left */    u_int8_t  ip6r0_reserved;  /* reserved field */    u_int8_t  ip6r0_slmap[3];  /* strict/loose bit map */    struct in6_addr  ip6r0_addr[1];  /* up to 23 addresses */  };#define	 IPV6_RTHDR_TYPE_0 0#define ICMP6_ROUTER_RENUMBERING	138	/* router renumbering */#define ICMP6_ROUTER_RENUMBERING_COMMAND  0	/* rr command */#define ICMP6_ROUTER_RENUMBERING_RESULT   1	/* rr result */typedef struct _mld6_hdr {         struct  icmp6_hdr       mld6_hdr;         struct  in6_addr        mld6_addr; /* multicast address */} mld6_hdr;#define mld6_type       mld6_hdr.icmp6_type#define mld6_code       mld6_hdr.icmp6_code#define mld6_cksum      mld6_hdr.icmp6_cksum#define mld6_maxdelay   mld6_hdr.icmp6_data16[0]#define mld6_reserved   mld6_hdr.icmp6_data16[1]/* Option types and related macros */#define IP6OPT_PAD1             0x00    /* 00 0 00000 */#define IP6OPT_PADN             0x01    /* 00 0 00001 */#define IP6OPT_JUMBO            0xC2    /* 11 0 00010 = 194 */#define IP6OPT_JUMBO_LEN        6#define IP6OPT_RTALERT          0x05    /* 00 0 00101 */#define IP6OPT_RTALERT_LEN      4#define IP6OPT_RTALERT_MLD      0       /* Datagram contains an MLD message */#define IP6OPT_RTALERT_RSVP     1       /* Datagram contains an RSVP message */#define IP6OPT_RTALERT_ACTNET   2       /* contains an Active Networks msg */#define IP6OPT_MINLEN           2#ifndef HAVE_ADDRINFO#ifndef EAI_ADDRFAMILYstruct addrinfo {	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME */	int	ai_family;	/* PF_xxx */	int	ai_socktype;	/* SOCK_xxx */	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */	size_t	ai_addrlen;	/* length of ai_addr */	char	*ai_canonname;	/* canonical name for hostname */	struct sockaddr *ai_addr;	/* binary address */	struct addrinfo *ai_next;	/* next structure in linked list */};#endif#endif /* HAVE_ADDRINFO *//* Hop-by-Hop options header *//* XXX should we pad it to force alignment on an 8-byte boundary? */struct ip6_hbh {        u_int8_t        ip6h_nxt;       /* next header */        u_int8_t        ip6h_len;       /* length in units of 8 octets */        /* followed by options */};/* Destination options header *//* XXX should we pad it to force alignment on an 8-byte boundary? */struct ip6_dest {        u_int8_t        ip6d_nxt;       /* next header */        u_int8_t        ip6d_len;       /* length in units of 8 octets */        /* followed by options */};#define IN6_IS_ADDR_UNSPECIFIED(a) \	(((u_int32_t *) (a))[0] == 0 && ((u_int32_t *) (a))[1] == 0 && \	 ((u_int32_t *) (a))[2] == 0 && ((u_int32_t *) (a))[3] == 0)