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/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _NETINET_ICMP6_H
#define _NETINET_ICMP6_H 1
#include <sys/types.h>
#include <netinet/in.h>
#define ICMPV6_FILTER 1
#define ICMPV6_FILTER_BLOCK 1
#define ICMPV6_FILTER_PASS 2
#define ICMPV6_FILTER_BLOCKOTHERS 3
#define ICMPV6_FILTER_PASSONLY 4
struct icmpv6_filter
{
u_int32_t data[8];
};
struct icmpv6hdr
{
u_int8_t icmpv6_type; /* type field */
u_int8_t icmpv6_code; /* code field */
u_int16_t icmpv6_cksum; /* checksum field */
union
{
u_int32_t un_data32[1]; /* type-specific field */
u_int16_t un_data16[2]; /* type-specific field */
u_int8_t un_data8[4]; /* type-specific field */
} icmpv6_dataun;
};
#define icmpv6_data32 icmpv6_dataun.un_data32
#define icmpv6_data16 icmpv6_dataun.un_data16
#define icmpv6_data8 icmpv6_dataun.un_data8
#define icmpv6_pptr icmpv6_data32[0] /* parameter prob */
#define icmpv6_mtu icmpv6_data32[0] /* packet too big */
#define icmpv6_id icmpv6_data16[0] /* echo request/reply */
#define icmpv6_seq icmpv6_data16[1] /* echo request/reply */
#define icmpv6_maxdelay icmpv6_data16[0] /* mcast group membership */
#define ICMPV6_DEST_UNREACH 1
#define ICMPV6_PACKET_TOOBIG 2
#define ICMPV6_TIME_EXCEEDED 3
#define ICMPV6_PARAMETER_PROBLEM 4
#define ICMPV6_INFOMSG_MASK 128 /* message is info if bit set */
#define ICMPV6_ECHOREQUEST 128
#define ICMPV6_ECHOREPLY 129
#define ICMPV6_MGM_QUERY 130
#define ICMPV6_MGM_REPORT 131
#define ICMPV6_MGM_REDUCTION 132
#define ICMPV6_DEST_UNREACH_NOROUTE 0
#define ICMPV6_DEST_UNREACH_ADMIN 1 /* administratively prohibited */
#define ICMPV6_DEST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor (and must be) */
#define ICMPV6_DEST_UNREACH_ADDR 3
#define ICMPV6_DEST_UNREACH_NOPORT 4
#define ICMPV6_TIME_EXCEED_HOPS 0 /* Hop Limit == 0 in transit */
#define ICMPV6_TIME_EXCEED_REASSEMBLY 1 /* Reassembly time out */
#define ICMPV6_PARAMPROB_HEADER 0 /* erroneous header field */
#define ICMPV6_PARAMPROB_NEXTHEADER 1 /* unrecognized Next Header */
#define ICMPV6_PARAMPROB_OPTION 2 /* unrecognized option */
#define ICMPV6_FILTER_WILLPASS(type, filterp) \
((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) == 0)
#define ICMPV6_FILTER_WILLBLOCK(type, filterp) \
((((filterp)->data[(type) >> 5]) & (1 << ((type) & 31))) != 0)
#define ICMPV6_FILTER_SETPASS(type, filterp) \
((((filterp)->data[(type) >> 5]) &= ~(1 << ((type) & 31))))
#define ICMPV6_FILTER_SETBLOCK(type, filterp) \
((((filterp)->data[(type) >> 5]) |= (1 << ((type) & 31))))
#define ICMPV6_FILTER_SETPASSALL(filterp) \
memset (filterp, 0, sizeof (struct icmpv6_filter));
#define ICMPV6_FILTER_SETBLOCKALL(filterp) \
memset (filterp, 0xFF, sizeof (struct icmpv6_filter));
#define ND6_ROUTER_SOLICITATION 133
#define ND6_ROUTER_ADVERTISEMENT 134
#define ND6_NEIGHBOR_SOLICITATION 135
#define ND6_NEIGHBOR_ADVERTISEMENT 136
#define ND6_REDIRECT 137
enum nd6_option
{
ND6_OPT_SOURCE_LINKADDR=1,
ND6_OPT_TARGET_LINKADDR=2,
ND6_OPT_PREFIX_INFORMATION=3,
ND6_OPT_REDIRECTED_HEADER=4,
ND6_OPT_MTU=5,
ND6_OPT_ENDOFLIST=256
};
struct nd6_router_solicit /* router solicitation */
{
struct icmpv6hdr rsol_hdr;
};
#define rsol_type rsol_hdr.icmpv6_type
#define rsol_code rsol_hdr.icmpv6_code
#define rsol_cksum rsol_hdr.icmpv6_cksum
#define rsol_reserved rsol_hdr.icmpv6_data32[0]
struct nd6_router_advert
{
struct icmpv6hdr radv_hdr;
u_int32_t radv_reachable; /* reachable time */
u_int32_t radv_retransmit; /* reachable retransmit time */
};
#define radv_type radv_hdr.icmpv6_type
#define radv_code radv_hdr.icmpv6_code
#define radv_cksum radv_hdr.icmpv6_cksum
#define radv_maxhoplimit radv_hdr.icmpv6_data8[0]
#define radv_m_o_res radv_hdr.icmpv6_data8[1]
#define ND6_RADV_M_BIT 0x80
#define ND6_RADV_O_BIT 0x40
#define radv_router_lifetime radv_hdr.icmpv6_data16[1]
struct nd6_nsolicitation /* neighbor solicitation */
{
struct icmpv6hdr nsol6_hdr;
struct in6_addr nsol6_target;
};
struct nd6_nadvertisement /* neighbor advertisement */
{
struct icmpv6hdr nadv6_hdr;
struct in6_addr nadv6_target;
};
#define nadv6_flags nadv6_hdr.icmpv6_data32[0]
#define ND6_NADVERFLAG_ISROUTER 0x80
#define ND6_NADVERFLAG_SOLICITED 0x40
#define ND6_NADVERFLAG_OVERRIDE 0x20
struct nd6_redirect /* redirect */
{
struct icmpv6hdr redirect_hdr;
struct in6_addr redirect_target;
struct in6_addr redirect_destination;
};
struct nd6_opt_prefix_info /* prefix information */
{
u_int8_t opt_type;
u_int8_t opt_length;
u_int8_t opt_prefix_length;
u_int8_t opt_l_a_res;
u_int32_t opt_valid_life;
u_int32_t opt_preferred_life;
u_int32_t opt_reserved2;
struct in6_addr opt_prefix;
};
#define ND6_OPT_PI_L_BIT 0x80
#define ND6_OPT_PI_A_BIT 0x40
struct nd6_opt_mtu /* MTU option */
{
u_int8_t opt_type;
u_int8_t opt_length;
u_int16_t opt_reserved;
u_int32_t opt_mtu;
};
#endif /* netinet/icmpv6.h */
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