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1 | /*␊ |
2 | * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * This file contains Original Code and/or Modifications of Original Code␊ |
7 | * as defined in and that are subject to the Apple Public Source License␊ |
8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
9 | * compliance with the License. The rights granted to you under the License␊ |
10 | * may not be used to create, or enable the creation or redistribution of,␊ |
11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
13 | * terms of an Apple operating system software license agreement.␊ |
14 | * ␊ |
15 | * Please obtain a copy of the License at␊ |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
17 | * ␊ |
18 | * The Original Code and all software distributed under the License are␊ |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
23 | * Please see the License for the specific language governing rights and␊ |
24 | * limitations under the License.␊ |
25 | * ␊ |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
27 | */␊ |
28 | /*␊ |
29 | * Copyright (c) 1982, 1986, 1993␊ |
30 | *␉The Regents of the University of California. All rights reserved.␊ |
31 | *␊ |
32 | * Redistribution and use in source and binary forms, with or without␊ |
33 | * modification, are permitted provided that the following conditions␊ |
34 | * are met:␊ |
35 | * 1. Redistributions of source code must retain the above copyright␊ |
36 | * notice, this list of conditions and the following disclaimer.␊ |
37 | * 2. Redistributions in binary form must reproduce the above copyright␊ |
38 | * notice, this list of conditions and the following disclaimer in the␊ |
39 | * documentation and/or other materials provided with the distribution.␊ |
40 | * 3. All advertising materials mentioning features or use of this software␊ |
41 | * must display the following acknowledgement:␊ |
42 | *␉This product includes software developed by the University of␊ |
43 | *␉California, Berkeley and its contributors.␊ |
44 | * 4. Neither the name of the University nor the names of its contributors␊ |
45 | * may be used to endorse or promote products derived from this software␊ |
46 | * without specific prior written permission.␊ |
47 | *␊ |
48 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND␊ |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE␊ |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE␊ |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE␊ |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL␊ |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS␊ |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)␊ |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT␊ |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY␊ |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF␊ |
58 | * SUCH DAMAGE.␊ |
59 | *␊ |
60 | *␉@(#)ip_icmp.h␉8.1 (Berkeley) 6/10/93␊ |
61 | * $FreeBSD: src/sys/netinet/ip_icmp.h,v 1.16 1999/12/29 04:41:01 peter Exp $␊ |
62 | */␊ |
63 | ␊ |
64 | #ifndef _NETINET_IP_ICMP_H_␊ |
65 | #define _NETINET_IP_ICMP_H_␊ |
66 | #include <sys/appleapiopts.h>␊ |
67 | ␊ |
68 | /*␊ |
69 | * Interface Control Message Protocol Definitions.␊ |
70 | * Per RFC 792, September 1981.␊ |
71 | */␊ |
72 | ␊ |
73 | /*␊ |
74 | * Internal of an ICMP Router Advertisement␊ |
75 | */␊ |
76 | struct icmp_ra_addr {␊ |
77 | ␉u_int32_t ira_addr;␊ |
78 | ␉u_int32_t ira_preference;␊ |
79 | };␊ |
80 | ␊ |
81 | /*␊ |
82 | * Structure of an icmp header.␊ |
83 | */␊ |
84 | struct icmp {␊ |
85 | ␉u_char␉icmp_type;␉␉/* type of message, see below */␊ |
86 | ␉u_char␉icmp_code;␉␉/* type sub code */␊ |
87 | ␉u_short␉icmp_cksum;␉␉/* ones complement cksum of struct */␊ |
88 | ␉union {␊ |
89 | ␉␉u_char ih_pptr;␉␉␉/* ICMP_PARAMPROB */␊ |
90 | ␉␉struct in_addr ih_gwaddr;␉/* ICMP_REDIRECT */␊ |
91 | ␉␉struct ih_idseq {␊ |
92 | ␉␉␉n_short␉icd_id;␊ |
93 | ␉␉␉n_short␉icd_seq;␊ |
94 | ␉␉} ih_idseq;␊ |
95 | ␉␉int ih_void;␊ |
96 | ␊ |
97 | ␉␉/* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */␊ |
98 | ␉␉struct ih_pmtu {␊ |
99 | ␉␉␉n_short ipm_void;␊ |
100 | ␉␉␉n_short ipm_nextmtu;␊ |
101 | ␉␉} ih_pmtu;␊ |
102 | ␊ |
103 | ␉␉struct ih_rtradv {␊ |
104 | ␉␉␉u_char irt_num_addrs;␊ |
105 | ␉␉␉u_char irt_wpa;␊ |
106 | ␉␉␉u_int16_t irt_lifetime;␊ |
107 | ␉␉} ih_rtradv;␊ |
108 | ␉} icmp_hun;␊ |
109 | #define␉icmp_pptr␉icmp_hun.ih_pptr␊ |
110 | #define␉icmp_gwaddr␉icmp_hun.ih_gwaddr␊ |
111 | #define␉icmp_id␉␉icmp_hun.ih_idseq.icd_id␊ |
112 | #define␉icmp_seq␉icmp_hun.ih_idseq.icd_seq␊ |
113 | #define␉icmp_void␉icmp_hun.ih_void␊ |
114 | #define␉icmp_pmvoid␉icmp_hun.ih_pmtu.ipm_void␊ |
115 | #define␉icmp_nextmtu␉icmp_hun.ih_pmtu.ipm_nextmtu␊ |
116 | #define␉icmp_num_addrs␉icmp_hun.ih_rtradv.irt_num_addrs␊ |
117 | #define␉icmp_wpa␉icmp_hun.ih_rtradv.irt_wpa␊ |
118 | #define␉icmp_lifetime␉icmp_hun.ih_rtradv.irt_lifetime␊ |
119 | ␉union {␊ |
120 | ␉␉struct id_ts {␊ |
121 | ␉␉␉n_time its_otime;␊ |
122 | ␉␉␉n_time its_rtime;␊ |
123 | ␉␉␉n_time its_ttime;␊ |
124 | ␉␉} id_ts;␊ |
125 | ␉␉struct id_ip {␊ |
126 | ␉␉␉struct ip idi_ip;␊ |
127 | ␉␉␉/* options and then 64 bits of data */␊ |
128 | ␉␉} id_ip;␊ |
129 | ␉␉struct icmp_ra_addr id_radv;␊ |
130 | ␉␉u_int32_t id_mask;␊ |
131 | ␉␉char␉id_data[1];␊ |
132 | ␉} icmp_dun;␊ |
133 | #define␉icmp_otime␉icmp_dun.id_ts.its_otime␊ |
134 | #define␉icmp_rtime␉icmp_dun.id_ts.its_rtime␊ |
135 | #define␉icmp_ttime␉icmp_dun.id_ts.its_ttime␊ |
136 | #define␉icmp_ip␉␉icmp_dun.id_ip.idi_ip␊ |
137 | #define␉icmp_radv␉icmp_dun.id_radv␊ |
138 | #define␉icmp_mask␉icmp_dun.id_mask␊ |
139 | #define␉icmp_data␉icmp_dun.id_data␊ |
140 | };␊ |
141 | ␊ |
142 | /*␊ |
143 | * Lower bounds on packet lengths for various types.␊ |
144 | * For the error advice packets must first insure that the␊ |
145 | * packet is large enough to contain the returned ip header.␊ |
146 | * Only then can we do the check to see if 64 bits of packet␊ |
147 | * data have been returned, since we need to check the returned␊ |
148 | * ip header length.␊ |
149 | */␊ |
150 | #define␉ICMP_MINLEN␉8␉␉␉␉/* abs minimum */␊ |
151 | #define␉ICMP_TSLEN␉(8 + 3 * sizeof (n_time))␉/* timestamp */␊ |
152 | #define␉ICMP_MASKLEN␉12␉␉␉␉/* address mask */␊ |
153 | #define␉ICMP_ADVLENMIN␉(8 + sizeof (struct ip) + 8)␉/* min */␊ |
154 | #ifndef _IP_VHL␊ |
155 | #define␉ICMP_ADVLEN(p)␉(8 + ((p)->icmp_ip.ip_hl << 2) + 8)␊ |
156 | ␉/* N.B.: must separately check that ip_hl >= 5 */␊ |
157 | #else␊ |
158 | #define␉ICMP_ADVLEN(p)␉(8 + (IP_VHL_HL((p)->icmp_ip.ip_vhl) << 2) + 8)␊ |
159 | ␉/* N.B.: must separately check that header length >= 5 */␊ |
160 | #endif␊ |
161 | ␊ |
162 | /*␊ |
163 | * Definition of type and code field values.␊ |
164 | */␊ |
165 | #define␉ICMP_ECHOREPLY␉␉0␉␉/* echo reply */␊ |
166 | #define␉ICMP_UNREACH␉␉3␉␉/* dest unreachable, codes: */␊ |
167 | #define␉␉ICMP_UNREACH_NET␉0␉␉/* bad net */␊ |
168 | #define␉␉ICMP_UNREACH_HOST␉1␉␉/* bad host */␊ |
169 | #define␉␉ICMP_UNREACH_PROTOCOL␉2␉␉/* bad protocol */␊ |
170 | #define␉␉ICMP_UNREACH_PORT␉3␉␉/* bad port */␊ |
171 | #define␉␉ICMP_UNREACH_NEEDFRAG␉4␉␉/* IP_DF caused drop */␊ |
172 | #define␉␉ICMP_UNREACH_SRCFAIL␉5␉␉/* src route failed */␊ |
173 | #define␉␉ICMP_UNREACH_NET_UNKNOWN 6␉␉/* unknown net */␊ |
174 | #define␉␉ICMP_UNREACH_HOST_UNKNOWN 7␉␉/* unknown host */␊ |
175 | #define␉␉ICMP_UNREACH_ISOLATED␉8␉␉/* src host isolated */␊ |
176 | #define␉␉ICMP_UNREACH_NET_PROHIB␉9␉␉/* prohibited access */␊ |
177 | #define␉␉ICMP_UNREACH_HOST_PROHIB 10␉␉/* ditto */␊ |
178 | #define␉␉ICMP_UNREACH_TOSNET␉11␉␉/* bad tos for net */␊ |
179 | #define␉␉ICMP_UNREACH_TOSHOST␉12␉␉/* bad tos for host */␊ |
180 | #define␉␉ICMP_UNREACH_FILTER_PROHIB 13␉␉/* admin prohib */␊ |
181 | #define␉␉ICMP_UNREACH_HOST_PRECEDENCE 14␉␉/* host prec vio. */␊ |
182 | #define␉␉ICMP_UNREACH_PRECEDENCE_CUTOFF 15␉/* prec cutoff */␊ |
183 | #define␉ICMP_SOURCEQUENCH␉4␉␉/* packet lost, slow down */␊ |
184 | #define␉ICMP_REDIRECT␉␉5␉␉/* shorter route, codes: */␊ |
185 | #define␉␉ICMP_REDIRECT_NET␉0␉␉/* for network */␊ |
186 | #define␉␉ICMP_REDIRECT_HOST␉1␉␉/* for host */␊ |
187 | #define␉␉ICMP_REDIRECT_TOSNET␉2␉␉/* for tos and net */␊ |
188 | #define␉␉ICMP_REDIRECT_TOSHOST␉3␉␉/* for tos and host */␊ |
189 | #define␉ICMP_ALTHOSTADDR␉6␉␉/* alternate host address */␊ |
190 | #define␉ICMP_ECHO␉␉8␉␉/* echo service */␊ |
191 | #define␉ICMP_ROUTERADVERT␉9␉␉/* router advertisement */␊ |
192 | #define␉␉ICMP_ROUTERADVERT_NORMAL␉ 0 /* normal advertisement */␊ |
193 | #define␉␉ICMP_ROUTERADVERT_NOROUTE_COMMON 16 /* selective routing */␊ |
194 | #define␉ICMP_ROUTERSOLICIT␉10␉␉/* router solicitation */␊ |
195 | #define␉ICMP_TIMXCEED␉␉11␉␉/* time exceeded, code: */␊ |
196 | #define␉␉ICMP_TIMXCEED_INTRANS␉0␉␉/* ttl==0 in transit */␊ |
197 | #define␉␉ICMP_TIMXCEED_REASS␉1␉␉/* ttl==0 in reass */␊ |
198 | #define␉ICMP_PARAMPROB␉␉12␉␉/* ip header bad */␊ |
199 | #define␉␉ICMP_PARAMPROB_ERRATPTR 0␉␉/* error at param ptr */␊ |
200 | #define␉␉ICMP_PARAMPROB_OPTABSENT 1␉␉/* req. opt. absent */␊ |
201 | #define␉␉ICMP_PARAMPROB_LENGTH 2␉␉␉/* bad length */␊ |
202 | #define␉ICMP_TSTAMP␉␉13␉␉/* timestamp request */␊ |
203 | #define␉ICMP_TSTAMPREPLY␉14␉␉/* timestamp reply */␊ |
204 | #define␉ICMP_IREQ␉␉15␉␉/* information request */␊ |
205 | #define␉ICMP_IREQREPLY␉␉16␉␉/* information reply */␊ |
206 | #define␉ICMP_MASKREQ␉␉17␉␉/* address mask request */␊ |
207 | #define␉ICMP_MASKREPLY␉␉18␉␉/* address mask reply */␊ |
208 | #define␉ICMP_TRACEROUTE␉␉30␉␉/* traceroute */␊ |
209 | #define␉ICMP_DATACONVERR␉31␉␉/* data conversion error */␊ |
210 | #define␉ICMP_MOBILE_REDIRECT␉32␉␉/* mobile host redirect */␊ |
211 | #define␉ICMP_IPV6_WHEREAREYOU␉33␉␉/* IPv6 where-are-you */␊ |
212 | #define␉ICMP_IPV6_IAMHERE␉34␉␉/* IPv6 i-am-here */␊ |
213 | #define␉ICMP_MOBILE_REGREQUEST␉35␉␉/* mobile registration req */␊ |
214 | #define␉ICMP_MOBILE_REGREPLY␉36␉␉/* mobile registration reply */␊ |
215 | #define␉ICMP_SKIP␉␉39␉␉/* SKIP */␊ |
216 | #define␉ICMP_PHOTURIS␉␉40␉␉/* Photuris */␊ |
217 | #define␉␉ICMP_PHOTURIS_UNKNOWN_INDEX␉1␉/* unknown sec index */␊ |
218 | #define␉␉ICMP_PHOTURIS_AUTH_FAILED␉2␉/* auth failed */␊ |
219 | #define␉␉ICMP_PHOTURIS_DECRYPT_FAILED␉3␉/* decrypt failed */␊ |
220 | ␊ |
221 | #define␉ICMP_MAXTYPE␉␉40␊ |
222 | ␊ |
223 | #define␉ICMP_INFOTYPE(type) \␊ |
224 | ␉((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \␊ |
225 | ␉(type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \␊ |
226 | ␉(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \␊ |
227 | ␉(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \␊ |
228 | ␉(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)␊ |
229 | ␊ |
230 | ␊ |
231 | #endif␊ |
232 |