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/*
%%% portions-copyright-nrl-97
Portions of this software are Copyright 1997-1998 by Randall Atkinson,
Ronald Lee, Daniel McDonald, Bao Phan, and Chris Winters. All Rights
Reserved. All rights under this copyright have been assigned to the US
Naval Research Laboratory (NRL). The NRL Copyright Notice and License
Agreement Version 1.1 (January 17, 1995) applies to these portions of the
software.
You should have received a copy of the license with this software. If you
didn't get a copy, you may request one from <license@ipv6.nrl.navy.mil>.
*/
#ifndef _NETINET6_ICMPV6_H
#define _NETINET6_ICMPV6_H 1
#include <netinet6/ipv6.h>
struct icmpv6hdr {
uint8_t icmpv6_type; /* type field */
uint8_t icmpv6_code; /* code field */
uint16_t icmpv6_cksum; /* checksum field */
union {
uint32_t un_data32[1]; /* type-specific field */
uint16_t un_data16[2]; /* type-specific field */
uint8_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_DST_UNREACH 1
#define ICMPV6_PACKET_TOOBIG 2
#define ICMPV6_TIME_EXCEEDED 3
#define ICMPV6_PARAMETER_PROBLEM 4
#define ICMPV6_INFOMSG_MASK 128 /* all informational messages */
#define ICMPV6_ECHO_REQUEST 128
#define ICMPV6_ECHO_REPLY 129
#define ICMPV6_MEMBERSHIP_QUERY 130
#define ICMPV6_MEMBERSHIP_REPORT 131
#define ICMPV6_MEMBERSHIP_REDUCTION 132
#define ICMPV6_UNREACH_NOROUTE 0
#define ICMPV6_UNREACH_ADMIN 1 /* administratively prohibited */
#define ICMPV6_UNREACH_NOTNEIGHBOR 2 /* not a neighbor (and must be) */
#define ICMPV6_UNREACH_ADDRESS 3
#define ICMPV6_UNREACH_PORT 4
#define ICMPV6_EXCEEDED_HOPS 0 /* Hop Limit == 0 in transit */
#define ICMPV6_EXCEEDED_REASSEMBLY 1 /* Reassembly time out */
#define ICMPV6_PARAMPROB_HDR 0 /* erroneous header field */
#define ICMPV6_PARAMPROB_NEXTHDR 1 /* unrecognized Next Header */
#define ICMPV6_PARAMPROB_OPTION 2 /* unrecognized option */
struct icmpv6_filter {
uint32_t data[8]; /* 8*32 = 256 bits */
};
#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))
#endif /* _NETINET6_ICMPV6_H */
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