source: trunk/src/emx/include/netinet/ip_icmp.h@ 18

Last change on this file since 18 was 18, checked in by bird, 23 years ago

Initial revision
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1/* Modified for emx by hv 1994
2 *
3 * Copyright (c) 1982, 1986 Regents of the University of California.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * from: @(#)ip_icmp.h 7.5 (Berkeley) 6/28/90
35 * $Id: ip_icmp.h 18 2003-04-16 15:53:07Z bird $
36 */
37
38#ifndef _NETINET_IP_ICMP_H_
39#define _NETINET_IP_ICMP_H_
40
41/*
42 * Interface Control Message Protocol Definitions.
43 * Per RFC 792, September 1981.
44 */
45
46/*
47 * Structure of an icmp header.
48 */
49struct icmp {
50 u_char icmp_type; /* type of message, see below */
51 u_char icmp_code; /* type sub code */
52 u_short icmp_cksum; /* ones complement cksum of struct */
53 union {
54 u_char ih_pptr; /* ICMP_PARAMPROB */
55 struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
56 struct ih_idseq {
57 n_short icd_id;
58 n_short icd_seq;
59 } ih_idseq;
60 int ih_void;
61 } icmp_hun;
62#define icmp_pptr icmp_hun.ih_pptr
63#define icmp_gwaddr icmp_hun.ih_gwaddr
64#define icmp_id icmp_hun.ih_idseq.icd_id
65#define icmp_seq icmp_hun.ih_idseq.icd_seq
66#define icmp_void icmp_hun.ih_void
67 union {
68 struct id_ts {
69 n_time its_otime;
70 n_time its_rtime;
71 n_time its_ttime;
72 } id_ts;
73 struct id_ip {
74 struct ip idi_ip;
75 /* options and then 64 bits of data */
76 } id_ip;
77 u_long id_mask;
78 char id_data[1];
79 } icmp_dun;
80#define icmp_otime icmp_dun.id_ts.its_otime
81#define icmp_rtime icmp_dun.id_ts.its_rtime
82#define icmp_ttime icmp_dun.id_ts.its_ttime
83#define icmp_ip icmp_dun.id_ip.idi_ip
84#define icmp_mask icmp_dun.id_mask
85#define icmp_data icmp_dun.id_data
86};
87
88/*
89 * Lower bounds on packet lengths for various types.
90 * For the error advice packets must first insure that the
91 * packet is large enought to contain the returned ip header.
92 * Only then can we do the check to see if 64 bits of packet
93 * data have been returned, since we need to check the returned
94 * ip header length.
95 */
96#define ICMP_MINLEN 8 /* abs minimum */
97#define ICMP_TSLEN (8 + 3 * sizeof (n_time)) /* timestamp */
98#define ICMP_MASKLEN 12 /* address mask */
99#define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
100#define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
101 /* N.B.: must separately check that ip_hl >= 5 */
102
103/*
104 * Definition of type and code field values.
105 */
106#define ICMP_ECHOREPLY 0 /* echo reply */
107#define ICMP_UNREACH 3 /* dest unreachable, codes: */
108#define ICMP_UNREACH_NET 0 /* bad net */
109#define ICMP_UNREACH_HOST 1 /* bad host */
110#define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
111#define ICMP_UNREACH_PORT 3 /* bad port */
112#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
113#define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
114#define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
115#define ICMP_REDIRECT 5 /* shorter route, codes: */
116#define ICMP_REDIRECT_NET 0 /* for network */
117#define ICMP_REDIRECT_HOST 1 /* for host */
118#define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
119#define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
120#define ICMP_ECHO 8 /* echo service */
121#define ICMP_TIMXCEED 11 /* time exceeded, code: */
122#define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
123#define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
124#define ICMP_PARAMPROB 12 /* ip header bad */
125#define ICMP_TSTAMP 13 /* timestamp request */
126#define ICMP_TSTAMPREPLY 14 /* timestamp reply */
127#define ICMP_IREQ 15 /* information request */
128#define ICMP_IREQREPLY 16 /* information reply */
129#define ICMP_MASKREQ 17 /* address mask request */
130#define ICMP_MASKREPLY 18 /* address mask reply */
131
132#define ICMP_MAXTYPE 18
133
134#define ICMP_INFOTYPE(type) \
135 ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
136 (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
137 (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
138 (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
139
140/* hv: this is a new TCPIPV4 data structure. Consult IBM's doc on that. */
141#ifdef TCPIPV4
142struct icmpstat {
143 short icps_error;
144 short icps_oldshort;
145 short icps_oldicmp;
146 short icps_outhist[ICMP_MAXTYPE + 1];
147 short icps_badcode;
148 short icps_tooshort;
149 short icps_checksum;
150 short icps_badlen;
151 short icps_reflect;
152 short icps_inhist[ICMP_MAXTYPE + 1];
153 u_long icps_OutMsgs;
154 u_long icps_OutErrors;
155 u_long icps_InMsgs;
156 u_long icps_InDestUnreachs;
157 u_long icps_InTimeExcds;
158 u_long icps_InParmProbs;
159 u_long icps_InSrcQuenchs;
160 u_long icps_InRedirects;
161 u_long icps_InEchos;
162 u_long icps_InEchoReps;
163 u_long icps_InTimestamps;
164 u_long icps_InTimestampReps;
165 u_long icps_InAddrMasks;
166 u_long icps_InAddrMaskReps;
167 u_long icps_OutDestUnreachs;
168 u_long icps_OutTimeExcds;
169 u_long icps_OutParmProbs;
170 u_long icps_OutSrcQuenchs;
171 u_long icps_OutRedirects;
172 u_long icps_OutEchos;
173 u_long icps_OutEchoReps;
174 u_long icps_OutTimestamps;
175 u_long icps_OutTimestampReps;
176 u_long icps_OutAddrMasks;
177 u_long icps_OutAddrMaskReps;
178};
179#endif
180
181#endif /* !_NETINET_IP_ICMP_H_ */
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