/*- * Copyright (c) 1982, 1986, 1993 * 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 the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. *
*/
#ifndef _USER_IP_ICMP_H_ #define _USER_IP_ICMP_H_
/* * Interface Control Message Protocol Definitions. * Per RFC 792, September 1981.
*/
/* * Internal of an ICMP Router Advertisement
*/ struct icmp_ra_addr {
uint32_t ira_addr;
uint32_t ira_preference;
};
/* * Structure of an icmp header.
*/ struct icmphdr {
u_char icmp_type; /* type of message, see below */
u_char icmp_code; /* type sub code */
u_short icmp_cksum; /* ones complement cksum of struct */
};
/* * Lower bounds on packet lengths for various types. * For the error advice packets must first insure that the * packet is large enough to contain the returned ip header. * Only then can we do the check to see if 64 bits of packet * data have been returned, since we need to check the returned * ip header length.
*/ #define ICMP_MINLEN 8/* abs minimum */ #define ICMP_TSLEN (8 + 3 * sizeof (uint32_t)) /* timestamp */ #define ICMP_MASKLEN 12/* address mask */ #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */ #define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8) /* N.B.: must separately check that ip_hl >= 5 */
/* * Definition of type and code field values.
*/ #define ICMP_ECHOREPLY 0/* echo reply */ #define ICMP_UNREACH 3/* dest unreachable, codes: */ #define ICMP_UNREACH_NET 0/* bad net */ #define ICMP_UNREACH_HOST 1/* bad host */ #define ICMP_UNREACH_PROTOCOL 2/* bad protocol */ #define ICMP_UNREACH_PORT 3/* bad port */ #define ICMP_UNREACH_NEEDFRAG 4/* IP_DF caused drop */ #define ICMP_UNREACH_SRCFAIL 5/* src route failed */ #define ICMP_UNREACH_NET_UNKNOWN 6/* unknown net */ #define ICMP_UNREACH_HOST_UNKNOWN 7/* unknown host */ #define ICMP_UNREACH_ISOLATED 8/* src host isolated */ #define ICMP_UNREACH_NET_PROHIB 9/* prohibited access */ #define ICMP_UNREACH_HOST_PROHIB 10/* ditto */ #define ICMP_UNREACH_TOSNET 11/* bad tos for net */ #define ICMP_UNREACH_TOSHOST 12/* bad tos for host */ #define ICMP_UNREACH_FILTER_PROHIB 13/* admin prohib */ #define ICMP_UNREACH_HOST_PRECEDENCE 14/* host prec vio. */ #define ICMP_UNREACH_PRECEDENCE_CUTOFF 15/* prec cutoff */ #define ICMP_SOURCEQUENCH 4/* packet lost, slow down */ #define ICMP_REDIRECT 5/* shorter route, codes: */ #define ICMP_REDIRECT_NET 0/* for network */ #define ICMP_REDIRECT_HOST 1/* for host */ #define ICMP_REDIRECT_TOSNET 2/* for tos and net */ #define ICMP_REDIRECT_TOSHOST 3/* for tos and host */ #define ICMP_ALTHOSTADDR 6/* alternate host address */ #define ICMP_ECHO 8/* echo service */ #define ICMP_ROUTERADVERT 9/* router advertisement */ #define ICMP_ROUTERADVERT_NORMAL 0/* normal advertisement */ #define ICMP_ROUTERADVERT_NOROUTE_COMMON 16/* selective routing */ #define ICMP_ROUTERSOLICIT 10/* router solicitation */ #define ICMP_TIMXCEED 11/* time exceeded, code: */ #define ICMP_TIMXCEED_INTRANS 0/* ttl==0 in transit */ #define ICMP_TIMXCEED_REASS 1/* ttl==0 in reass */ #define ICMP_PARAMPROB 12/* ip header bad */ #define ICMP_PARAMPROB_ERRATPTR 0/* error at param ptr */ #define ICMP_PARAMPROB_OPTABSENT 1/* req. opt. absent */ #define ICMP_PARAMPROB_LENGTH 2/* bad length */ #define ICMP_TSTAMP 13/* timestamp request */ #define ICMP_TSTAMPREPLY 14/* timestamp reply */ #define ICMP_IREQ 15/* information request */ #define ICMP_IREQREPLY 16/* information reply */ #define ICMP_MASKREQ 17/* address mask request */ #define ICMP_MASKREPLY 18/* address mask reply */ #define ICMP_TRACEROUTE 30/* traceroute */ #define ICMP_DATACONVERR 31/* data conversion error */ #define ICMP_MOBILE_REDIRECT 32/* mobile host redirect */ #define ICMP_IPV6_WHEREAREYOU 33/* IPv6 where-are-you */ #define ICMP_IPV6_IAMHERE 34/* IPv6 i-am-here */ #define ICMP_MOBILE_REGREQUEST 35/* mobile registration req */ #define ICMP_MOBILE_REGREPLY 36/* mobile registration reply */ #define ICMP_SKIP 39/* SKIP */ #define ICMP_PHOTURIS 40/* Photuris */ #define ICMP_PHOTURIS_UNKNOWN_INDEX 1/* unknown sec index */ #define ICMP_PHOTURIS_AUTH_FAILED 2/* auth failed */ #define ICMP_PHOTURIS_DECRYPT_FAILED 3/* decrypt failed */
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