15658bcb797978c3472335d93554405aba8236f66San Mehat/* $OpenBSD: nameser.h,v 1.11 2005/12/20 02:06:56 millert Exp $ */ 25658bcb797978c3472335d93554405aba8236f66San Mehat 35658bcb797978c3472335d93554405aba8236f66San Mehat/* 45658bcb797978c3472335d93554405aba8236f66San Mehat * ++Copyright++ 1983, 1989, 1993 55658bcb797978c3472335d93554405aba8236f66San Mehat * - 65658bcb797978c3472335d93554405aba8236f66San Mehat * Copyright (c) 1983, 1989, 1993 75658bcb797978c3472335d93554405aba8236f66San Mehat * The Regents of the University of California. All rights reserved. 85658bcb797978c3472335d93554405aba8236f66San Mehat * 95658bcb797978c3472335d93554405aba8236f66San Mehat * Redistribution and use in source and binary forms, with or without 105658bcb797978c3472335d93554405aba8236f66San Mehat * modification, are permitted provided that the following conditions 115658bcb797978c3472335d93554405aba8236f66San Mehat * are met: 125658bcb797978c3472335d93554405aba8236f66San Mehat * 1. Redistributions of source code must retain the above copyright 135658bcb797978c3472335d93554405aba8236f66San Mehat * notice, this list of conditions and the following disclaimer. 145658bcb797978c3472335d93554405aba8236f66San Mehat * 2. Redistributions in binary form must reproduce the above copyright 155658bcb797978c3472335d93554405aba8236f66San Mehat * notice, this list of conditions and the following disclaimer in the 165658bcb797978c3472335d93554405aba8236f66San Mehat * documentation and/or other materials provided with the distribution. 175658bcb797978c3472335d93554405aba8236f66San Mehat * 3. Neither the name of the University nor the names of its contributors 185658bcb797978c3472335d93554405aba8236f66San Mehat * may be used to endorse or promote products derived from this software 195658bcb797978c3472335d93554405aba8236f66San Mehat * without specific prior written permission. 205658bcb797978c3472335d93554405aba8236f66San Mehat * 215658bcb797978c3472335d93554405aba8236f66San Mehat * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 225658bcb797978c3472335d93554405aba8236f66San Mehat * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 235658bcb797978c3472335d93554405aba8236f66San Mehat * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 245658bcb797978c3472335d93554405aba8236f66San Mehat * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 255658bcb797978c3472335d93554405aba8236f66San Mehat * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 265658bcb797978c3472335d93554405aba8236f66San Mehat * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 275658bcb797978c3472335d93554405aba8236f66San Mehat * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 285658bcb797978c3472335d93554405aba8236f66San Mehat * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 295658bcb797978c3472335d93554405aba8236f66San Mehat * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 305658bcb797978c3472335d93554405aba8236f66San Mehat * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 315658bcb797978c3472335d93554405aba8236f66San Mehat * SUCH DAMAGE. 325658bcb797978c3472335d93554405aba8236f66San Mehat * - 335658bcb797978c3472335d93554405aba8236f66San Mehat * Portions Copyright (c) 1993 by Digital Equipment Corporation. 345658bcb797978c3472335d93554405aba8236f66San Mehat * 355658bcb797978c3472335d93554405aba8236f66San Mehat * Permission to use, copy, modify, and distribute this software for any 365658bcb797978c3472335d93554405aba8236f66San Mehat * purpose with or without fee is hereby granted, provided that the above 375658bcb797978c3472335d93554405aba8236f66San Mehat * copyright notice and this permission notice appear in all copies, and that 385658bcb797978c3472335d93554405aba8236f66San Mehat * the name of Digital Equipment Corporation not be used in advertising or 395658bcb797978c3472335d93554405aba8236f66San Mehat * publicity pertaining to distribution of the document or software without 405658bcb797978c3472335d93554405aba8236f66San Mehat * specific, written prior permission. 415658bcb797978c3472335d93554405aba8236f66San Mehat * 425658bcb797978c3472335d93554405aba8236f66San Mehat * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 435658bcb797978c3472335d93554405aba8236f66San Mehat * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 445658bcb797978c3472335d93554405aba8236f66San Mehat * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 455658bcb797978c3472335d93554405aba8236f66San Mehat * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 465658bcb797978c3472335d93554405aba8236f66San Mehat * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 475658bcb797978c3472335d93554405aba8236f66San Mehat * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 485658bcb797978c3472335d93554405aba8236f66San Mehat * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 495658bcb797978c3472335d93554405aba8236f66San Mehat * SOFTWARE. 505658bcb797978c3472335d93554405aba8236f66San Mehat * - 515658bcb797978c3472335d93554405aba8236f66San Mehat * Portions Copyright (c) 1995 by International Business Machines, Inc. 525658bcb797978c3472335d93554405aba8236f66San Mehat * 535658bcb797978c3472335d93554405aba8236f66San Mehat * International Business Machines, Inc. (hereinafter called IBM) grants 545658bcb797978c3472335d93554405aba8236f66San Mehat * permission under its copyrights to use, copy, modify, and distribute this 555658bcb797978c3472335d93554405aba8236f66San Mehat * Software with or without fee, provided that the above copyright notice and 565658bcb797978c3472335d93554405aba8236f66San Mehat * all paragraphs of this notice appear in all copies, and that the name of IBM 575658bcb797978c3472335d93554405aba8236f66San Mehat * not be used in connection with the marketing of any product incorporating 585658bcb797978c3472335d93554405aba8236f66San Mehat * the Software or modifications thereof, without specific, written prior 595658bcb797978c3472335d93554405aba8236f66San Mehat * permission. 605658bcb797978c3472335d93554405aba8236f66San Mehat * 615658bcb797978c3472335d93554405aba8236f66San Mehat * To the extent it has a right to do so, IBM grants an immunity from suit 625658bcb797978c3472335d93554405aba8236f66San Mehat * under its patents, if any, for the use, sale or manufacture of products to 635658bcb797978c3472335d93554405aba8236f66San Mehat * the extent that such products are used for performing Domain Name System 645658bcb797978c3472335d93554405aba8236f66San Mehat * dynamic updates in TCP/IP networks by means of the Software. No immunity is 655658bcb797978c3472335d93554405aba8236f66San Mehat * granted for any product per se or for any other function of any product. 665658bcb797978c3472335d93554405aba8236f66San Mehat * 675658bcb797978c3472335d93554405aba8236f66San Mehat * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES, 685658bcb797978c3472335d93554405aba8236f66San Mehat * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 695658bcb797978c3472335d93554405aba8236f66San Mehat * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, 705658bcb797978c3472335d93554405aba8236f66San Mehat * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING 715658bcb797978c3472335d93554405aba8236f66San Mehat * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN 725658bcb797978c3472335d93554405aba8236f66San Mehat * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES. 735658bcb797978c3472335d93554405aba8236f66San Mehat * --Copyright-- 745658bcb797978c3472335d93554405aba8236f66San Mehat */ 755658bcb797978c3472335d93554405aba8236f66San Mehat 765658bcb797978c3472335d93554405aba8236f66San Mehat/* 775658bcb797978c3472335d93554405aba8236f66San Mehat * @(#)nameser.h 8.1 (Berkeley) 6/2/93 785658bcb797978c3472335d93554405aba8236f66San Mehat * $From: nameser.h,v 8.11 1996/10/08 04:51:02 vixie Exp $ 795658bcb797978c3472335d93554405aba8236f66San Mehat */ 805658bcb797978c3472335d93554405aba8236f66San Mehat 815658bcb797978c3472335d93554405aba8236f66San Mehat#ifndef _NAMESER_H_ 825658bcb797978c3472335d93554405aba8236f66San Mehat#define _NAMESER_H_ 835658bcb797978c3472335d93554405aba8236f66San Mehat 845658bcb797978c3472335d93554405aba8236f66San Mehat#include <sys/cdefs.h> 855658bcb797978c3472335d93554405aba8236f66San Mehat#include <sys/param.h> 865658bcb797978c3472335d93554405aba8236f66San Mehat 875658bcb797978c3472335d93554405aba8236f66San Mehat/* 885658bcb797978c3472335d93554405aba8236f66San Mehat * revision information. this is the release date in YYYYMMDD format. 895658bcb797978c3472335d93554405aba8236f66San Mehat * it can change every day so the right thing to do with it is use it 905658bcb797978c3472335d93554405aba8236f66San Mehat * in preprocessor commands such as "#if (__BIND > 19931104)". do not 915658bcb797978c3472335d93554405aba8236f66San Mehat * compare for equality; rather, use it to determine whether your resolver 925658bcb797978c3472335d93554405aba8236f66San Mehat * is new enough to contain a certain feature. 935658bcb797978c3472335d93554405aba8236f66San Mehat */ 945658bcb797978c3472335d93554405aba8236f66San Mehat 955658bcb797978c3472335d93554405aba8236f66San Mehat#define __BIND 19960801 /* interface version stamp */ 965658bcb797978c3472335d93554405aba8236f66San Mehat 975658bcb797978c3472335d93554405aba8236f66San Mehat/* 985658bcb797978c3472335d93554405aba8236f66San Mehat * Define constants based on rfc883 995658bcb797978c3472335d93554405aba8236f66San Mehat */ 1005658bcb797978c3472335d93554405aba8236f66San Mehat#define PACKETSZ 512 /* maximum packet size */ 1015658bcb797978c3472335d93554405aba8236f66San Mehat#define MAXDNAME 1025 /* maximum presentation domain name */ 1025658bcb797978c3472335d93554405aba8236f66San Mehat#define MAXCDNAME 255 /* maximum compressed domain name */ 1035658bcb797978c3472335d93554405aba8236f66San Mehat#define MAXLABEL 63 /* maximum length of domain label */ 1045658bcb797978c3472335d93554405aba8236f66San Mehat#define HFIXEDSZ 12 /* #/bytes of fixed data in header */ 1055658bcb797978c3472335d93554405aba8236f66San Mehat#define QFIXEDSZ 4 /* #/bytes of fixed data in query */ 1065658bcb797978c3472335d93554405aba8236f66San Mehat#define RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ 1075658bcb797978c3472335d93554405aba8236f66San Mehat#define INT32SZ 4 /* for systems without 32-bit ints */ 1085658bcb797978c3472335d93554405aba8236f66San Mehat#define INT16SZ 2 /* for systems without 16-bit ints */ 1095658bcb797978c3472335d93554405aba8236f66San Mehat#define INADDRSZ 4 /* IPv4 T_A */ 1105658bcb797978c3472335d93554405aba8236f66San Mehat#define IN6ADDRSZ 16 /* IPv6 T_AAAA */ 1115658bcb797978c3472335d93554405aba8236f66San Mehat 1125658bcb797978c3472335d93554405aba8236f66San Mehat/* 1135658bcb797978c3472335d93554405aba8236f66San Mehat * Internet nameserver port number 1145658bcb797978c3472335d93554405aba8236f66San Mehat */ 1155658bcb797978c3472335d93554405aba8236f66San Mehat#define NAMESERVER_PORT 53 1165658bcb797978c3472335d93554405aba8236f66San Mehat 1175658bcb797978c3472335d93554405aba8236f66San Mehat/* 1185658bcb797978c3472335d93554405aba8236f66San Mehat * Currently defined opcodes 1195658bcb797978c3472335d93554405aba8236f66San Mehat */ 1205658bcb797978c3472335d93554405aba8236f66San Mehat#define QUERY 0x0 /* standard query */ 1215658bcb797978c3472335d93554405aba8236f66San Mehat#define IQUERY 0x1 /* inverse query */ 1225658bcb797978c3472335d93554405aba8236f66San Mehat#define STATUS 0x2 /* nameserver status query */ 1235658bcb797978c3472335d93554405aba8236f66San Mehat/*#define xxx 0x3*/ /* 0x3 reserved */ 1245658bcb797978c3472335d93554405aba8236f66San Mehat#define NS_NOTIFY_OP 0x4 /* notify secondary of SOA change */ 1255658bcb797978c3472335d93554405aba8236f66San Mehat/* 1265658bcb797978c3472335d93554405aba8236f66San Mehat * Currently defined response codes 1275658bcb797978c3472335d93554405aba8236f66San Mehat */ 1285658bcb797978c3472335d93554405aba8236f66San Mehat#define NOERROR 0 /* no error */ 1295658bcb797978c3472335d93554405aba8236f66San Mehat#define FORMERR 1 /* format error */ 1305658bcb797978c3472335d93554405aba8236f66San Mehat#define SERVFAIL 2 /* server failure */ 1315658bcb797978c3472335d93554405aba8236f66San Mehat#define NXDOMAIN 3 /* non existent domain */ 1325658bcb797978c3472335d93554405aba8236f66San Mehat#define NOTIMP 4 /* not implemented */ 1335658bcb797978c3472335d93554405aba8236f66San Mehat#define REFUSED 5 /* query refused */ 1345658bcb797978c3472335d93554405aba8236f66San Mehat 1355658bcb797978c3472335d93554405aba8236f66San Mehat/* 1365658bcb797978c3472335d93554405aba8236f66San Mehat * Type values for resources and queries 1375658bcb797978c3472335d93554405aba8236f66San Mehat */ 1385658bcb797978c3472335d93554405aba8236f66San Mehat#define T_A 1 /* host address */ 1395658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NS 2 /* authoritative server */ 1405658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MD 3 /* mail destination */ 1415658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MF 4 /* mail forwarder */ 1425658bcb797978c3472335d93554405aba8236f66San Mehat#define T_CNAME 5 /* canonical name */ 1435658bcb797978c3472335d93554405aba8236f66San Mehat#define T_SOA 6 /* start of authority zone */ 1445658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MB 7 /* mailbox domain name */ 1455658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MG 8 /* mail group member */ 1465658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MR 9 /* mail rename name */ 1475658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NULL 10 /* null resource record */ 1485658bcb797978c3472335d93554405aba8236f66San Mehat#define T_WKS 11 /* well known service */ 1495658bcb797978c3472335d93554405aba8236f66San Mehat#define T_PTR 12 /* domain name pointer */ 1505658bcb797978c3472335d93554405aba8236f66San Mehat#define T_HINFO 13 /* host information */ 1515658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MINFO 14 /* mailbox information */ 1525658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MX 15 /* mail routing information */ 1535658bcb797978c3472335d93554405aba8236f66San Mehat#define T_TXT 16 /* text strings */ 1545658bcb797978c3472335d93554405aba8236f66San Mehat#define T_RP 17 /* responsible person */ 1555658bcb797978c3472335d93554405aba8236f66San Mehat#define T_AFSDB 18 /* AFS cell database */ 1565658bcb797978c3472335d93554405aba8236f66San Mehat#define T_X25 19 /* X_25 calling address */ 1575658bcb797978c3472335d93554405aba8236f66San Mehat#define T_ISDN 20 /* ISDN calling address */ 1585658bcb797978c3472335d93554405aba8236f66San Mehat#define T_RT 21 /* router */ 1595658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NSAP 22 /* NSAP address */ 1605658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NSAP_PTR 23 /* reverse NSAP lookup (deprecated) */ 1615658bcb797978c3472335d93554405aba8236f66San Mehat#define T_SIG 24 /* security signature */ 1625658bcb797978c3472335d93554405aba8236f66San Mehat#define T_KEY 25 /* security key */ 1635658bcb797978c3472335d93554405aba8236f66San Mehat#define T_PX 26 /* X.400 mail mapping */ 1645658bcb797978c3472335d93554405aba8236f66San Mehat#define T_GPOS 27 /* geographical position (withdrawn) */ 1655658bcb797978c3472335d93554405aba8236f66San Mehat#define T_AAAA 28 /* IP6 Address */ 1665658bcb797978c3472335d93554405aba8236f66San Mehat#define T_LOC 29 /* Location Information */ 1675658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NXT 30 /* Next Valid Name in Zone */ 1685658bcb797978c3472335d93554405aba8236f66San Mehat#define T_EID 31 /* Endpoint identifier */ 1695658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NIMLOC 32 /* Nimrod locator */ 1705658bcb797978c3472335d93554405aba8236f66San Mehat#define T_SRV 33 /* Server selection */ 1715658bcb797978c3472335d93554405aba8236f66San Mehat#define T_ATMA 34 /* ATM Address */ 1725658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NAPTR 35 /* Naming Authority PoinTeR */ 1735658bcb797978c3472335d93554405aba8236f66San Mehat#define T_KX 36 /* Key Exchanger */ 1745658bcb797978c3472335d93554405aba8236f66San Mehat#define T_CERT 37 /* CERT */ 1755658bcb797978c3472335d93554405aba8236f66San Mehat#define T_A6 38 /* A6 */ 1765658bcb797978c3472335d93554405aba8236f66San Mehat#define T_DNAME 39 /* DNAME */ 1775658bcb797978c3472335d93554405aba8236f66San Mehat#define T_SINK 40 /* SINK */ 1785658bcb797978c3472335d93554405aba8236f66San Mehat#define T_OPT 41 /* OPT pseudo-RR, RFC2671 */ 1795658bcb797978c3472335d93554405aba8236f66San Mehat#define T_APL 42 /* APL */ 1805658bcb797978c3472335d93554405aba8236f66San Mehat#define T_DS 43 /* Delegation Signer */ 1815658bcb797978c3472335d93554405aba8236f66San Mehat#define T_SSHFP 44 /* SSH Key Fingerprint */ 1825658bcb797978c3472335d93554405aba8236f66San Mehat#define T_RRSIG 46 /* RRSIG */ 1835658bcb797978c3472335d93554405aba8236f66San Mehat#define T_NSEC 47 /* NSEC */ 1845658bcb797978c3472335d93554405aba8236f66San Mehat#define T_DNSKEY 48 /* DNSKEY */ 1855658bcb797978c3472335d93554405aba8236f66San Mehat /* non standard */ 1865658bcb797978c3472335d93554405aba8236f66San Mehat#define T_UINFO 100 /* user (finger) information */ 1875658bcb797978c3472335d93554405aba8236f66San Mehat#define T_UID 101 /* user ID */ 1885658bcb797978c3472335d93554405aba8236f66San Mehat#define T_GID 102 /* group ID */ 1895658bcb797978c3472335d93554405aba8236f66San Mehat#define T_UNSPEC 103 /* Unspecified format (binary data) */ 1905658bcb797978c3472335d93554405aba8236f66San Mehat /* Query type values which do not appear in resource records */ 1915658bcb797978c3472335d93554405aba8236f66San Mehat#define T_TKEY 249 /* Transaction Key */ 1925658bcb797978c3472335d93554405aba8236f66San Mehat#define T_TSIG 250 /* Transaction Signature */ 1935658bcb797978c3472335d93554405aba8236f66San Mehat#define T_IXFR 251 /* incremental zone transfer */ 1945658bcb797978c3472335d93554405aba8236f66San Mehat#define T_AXFR 252 /* transfer zone of authority */ 1955658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MAILB 253 /* transfer mailbox records */ 1965658bcb797978c3472335d93554405aba8236f66San Mehat#define T_MAILA 254 /* transfer mail agent records */ 1975658bcb797978c3472335d93554405aba8236f66San Mehat#define T_ANY 255 /* wildcard match */ 1985658bcb797978c3472335d93554405aba8236f66San Mehat 1995658bcb797978c3472335d93554405aba8236f66San Mehat/* 2005658bcb797978c3472335d93554405aba8236f66San Mehat * Values for class field 2015658bcb797978c3472335d93554405aba8236f66San Mehat */ 2025658bcb797978c3472335d93554405aba8236f66San Mehat 2035658bcb797978c3472335d93554405aba8236f66San Mehat#define C_IN 1 /* the arpa internet */ 2045658bcb797978c3472335d93554405aba8236f66San Mehat#define C_CHAOS 3 /* for chaos net (MIT) */ 2055658bcb797978c3472335d93554405aba8236f66San Mehat#define C_HS 4 /* for Hesiod name server (MIT) (XXX) */ 2065658bcb797978c3472335d93554405aba8236f66San Mehat /* Query class values which do not appear in resource records */ 2075658bcb797978c3472335d93554405aba8236f66San Mehat#define C_ANY 255 /* wildcard match */ 2085658bcb797978c3472335d93554405aba8236f66San Mehat 2095658bcb797978c3472335d93554405aba8236f66San Mehat/* 2105658bcb797978c3472335d93554405aba8236f66San Mehat * Flags field of the KEY RR rdata 2115658bcb797978c3472335d93554405aba8236f66San Mehat */ 2125658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_TYPEMASK 0xC000 /* Mask for "type" bits */ 2135658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_TYPE_AUTH_CONF 0x0000 /* Key usable for both */ 2145658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */ 2155658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */ 2165658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */ 2175658bcb797978c3472335d93554405aba8236f66San Mehat/* The type bits can also be interpreted independently, as single bits: */ 2185658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_NO_AUTH 0x8000 /* Key not usable for authentication */ 2195658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_NO_CONF 0x4000 /* Key not usable for confidentiality */ 2205658bcb797978c3472335d93554405aba8236f66San Mehat 2215658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_EXPERIMENTAL 0x2000 /* Security is *mandatory* if bit=0 */ 2225658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_RESERVED3 0x1000 /* reserved - must be zero */ 2235658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_RESERVED4 0x0800 /* reserved - must be zero */ 2245658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_USERACCOUNT 0x0400 /* key is assoc. with a user acct */ 2255658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_ENTITY 0x0200 /* key is assoc. with entity eg host */ 2265658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_ZONEKEY 0x0100 /* key is zone key for the zone named */ 2275658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_IPSEC 0x0080 /* key is for IPSEC use (host or user)*/ 2285658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_EMAIL 0x0040 /* key is for email (MIME security) */ 2295658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_RESERVED10 0x0020 /* reserved - must be zero */ 2305658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_RESERVED11 0x0010 /* reserved - must be zero */ 2315658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_SIGNATORYMASK 0x000F /* key can sign DNS RR's of same name */ 2325658bcb797978c3472335d93554405aba8236f66San Mehat 2335658bcb797978c3472335d93554405aba8236f66San Mehat#define KEYFLAG_RESERVED_BITMASK ( KEYFLAG_RESERVED3 | \ 2345658bcb797978c3472335d93554405aba8236f66San Mehat KEYFLAG_RESERVED4 | \ 2355658bcb797978c3472335d93554405aba8236f66San Mehat KEYFLAG_RESERVED10| KEYFLAG_RESERVED11) 2365658bcb797978c3472335d93554405aba8236f66San Mehat 2375658bcb797978c3472335d93554405aba8236f66San Mehat/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ 2385658bcb797978c3472335d93554405aba8236f66San Mehat#define ALGORITHM_MD5RSA 1 /* MD5 with RSA */ 2395658bcb797978c3472335d93554405aba8236f66San Mehat#define ALGORITHM_EXPIRE_ONLY 253 /* No alg, no security */ 2405658bcb797978c3472335d93554405aba8236f66San Mehat#define ALGORITHM_PRIVATE_OID 254 /* Key begins with OID indicating alg */ 2415658bcb797978c3472335d93554405aba8236f66San Mehat 2425658bcb797978c3472335d93554405aba8236f66San Mehat/* Signatures */ 2435658bcb797978c3472335d93554405aba8236f66San Mehat /* Size of a mod or exp in bits */ 2445658bcb797978c3472335d93554405aba8236f66San Mehat#define MIN_MD5RSA_KEY_PART_BITS 512 2455658bcb797978c3472335d93554405aba8236f66San Mehat#define MAX_MD5RSA_KEY_PART_BITS 2552 2465658bcb797978c3472335d93554405aba8236f66San Mehat /* Total of binary mod and exp, bytes */ 2475658bcb797978c3472335d93554405aba8236f66San Mehat#define MAX_MD5RSA_KEY_BYTES ((MAX_MD5RSA_KEY_PART_BITS+7/8)*2+3) 2485658bcb797978c3472335d93554405aba8236f66San Mehat /* Max length of text sig block */ 2495658bcb797978c3472335d93554405aba8236f66San Mehat#define MAX_KEY_BASE64 (((MAX_MD5RSA_KEY_BYTES+2)/3)*4) 2505658bcb797978c3472335d93554405aba8236f66San Mehat 2515658bcb797978c3472335d93554405aba8236f66San Mehat/* 2525658bcb797978c3472335d93554405aba8236f66San Mehat * EDNS0 Z-field extended flags 2535658bcb797978c3472335d93554405aba8236f66San Mehat */ 2545658bcb797978c3472335d93554405aba8236f66San Mehat#define DNS_MESSAGEEXTFLAG_DO 0x8000U 2555658bcb797978c3472335d93554405aba8236f66San Mehat 2565658bcb797978c3472335d93554405aba8236f66San Mehat/* 2575658bcb797978c3472335d93554405aba8236f66San Mehat * Status return codes for T_UNSPEC conversion routines 2585658bcb797978c3472335d93554405aba8236f66San Mehat */ 2595658bcb797978c3472335d93554405aba8236f66San Mehat#define CONV_SUCCESS 0 2605658bcb797978c3472335d93554405aba8236f66San Mehat#define CONV_OVERFLOW (-1) 2615658bcb797978c3472335d93554405aba8236f66San Mehat#define CONV_BADFMT (-2) 2625658bcb797978c3472335d93554405aba8236f66San Mehat#define CONV_BADCKSUM (-3) 2635658bcb797978c3472335d93554405aba8236f66San Mehat#define CONV_BADBUFLEN (-4) 2645658bcb797978c3472335d93554405aba8236f66San Mehat 2655658bcb797978c3472335d93554405aba8236f66San Mehat#if !defined(_BYTE_ORDER) || \ 2665658bcb797978c3472335d93554405aba8236f66San Mehat (_BYTE_ORDER != _BIG_ENDIAN && _BYTE_ORDER != _LITTLE_ENDIAN && \ 2675658bcb797978c3472335d93554405aba8236f66San Mehat _BYTE_ORDER != _PDP_ENDIAN) 2685658bcb797978c3472335d93554405aba8236f66San Mehat /* you must determine what the correct bit order is for 2695658bcb797978c3472335d93554405aba8236f66San Mehat * your compiler - the next line is an intentional error 2705658bcb797978c3472335d93554405aba8236f66San Mehat * which will force your compiles to bomb until you fix 2715658bcb797978c3472335d93554405aba8236f66San Mehat * the above macros. 2725658bcb797978c3472335d93554405aba8236f66San Mehat */ 2735658bcb797978c3472335d93554405aba8236f66San Mehat#error "Undefined or invalid _BYTE_ORDER"; 2745658bcb797978c3472335d93554405aba8236f66San Mehat#endif 2755658bcb797978c3472335d93554405aba8236f66San Mehat 2765658bcb797978c3472335d93554405aba8236f66San Mehat/* 2775658bcb797978c3472335d93554405aba8236f66San Mehat * Structure for query header. The order of the fields is machine- and 2785658bcb797978c3472335d93554405aba8236f66San Mehat * compiler-dependent, depending on the byte/bit order and the layout 2795658bcb797978c3472335d93554405aba8236f66San Mehat * of bit fields. We use bit fields only in int variables, as this 2805658bcb797978c3472335d93554405aba8236f66San Mehat * is all ANSI requires. This requires a somewhat confusing rearrangement. 2815658bcb797978c3472335d93554405aba8236f66San Mehat */ 2825658bcb797978c3472335d93554405aba8236f66San Mehat 2835658bcb797978c3472335d93554405aba8236f66San Mehattypedef struct { 2845658bcb797978c3472335d93554405aba8236f66San Mehat unsigned id :16; /* query identification number */ 2855658bcb797978c3472335d93554405aba8236f66San Mehat#if _BYTE_ORDER == _BIG_ENDIAN 2865658bcb797978c3472335d93554405aba8236f66San Mehat /* fields in third byte */ 2875658bcb797978c3472335d93554405aba8236f66San Mehat unsigned qr: 1; /* response flag */ 2885658bcb797978c3472335d93554405aba8236f66San Mehat unsigned opcode: 4; /* purpose of message */ 2895658bcb797978c3472335d93554405aba8236f66San Mehat unsigned aa: 1; /* authoritive answer */ 2905658bcb797978c3472335d93554405aba8236f66San Mehat unsigned tc: 1; /* truncated message */ 2915658bcb797978c3472335d93554405aba8236f66San Mehat unsigned rd: 1; /* recursion desired */ 2925658bcb797978c3472335d93554405aba8236f66San Mehat /* fields in fourth byte */ 2935658bcb797978c3472335d93554405aba8236f66San Mehat unsigned ra: 1; /* recursion available */ 2945658bcb797978c3472335d93554405aba8236f66San Mehat unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ 2955658bcb797978c3472335d93554405aba8236f66San Mehat unsigned ad: 1; /* authentic data from named */ 2965658bcb797978c3472335d93554405aba8236f66San Mehat unsigned cd: 1; /* checking disabled by resolver */ 2975658bcb797978c3472335d93554405aba8236f66San Mehat unsigned rcode :4; /* response code */ 2985658bcb797978c3472335d93554405aba8236f66San Mehat#endif 2995658bcb797978c3472335d93554405aba8236f66San Mehat#if _BYTE_ORDER == _LITTLE_ENDIAN || _BYTE_ORDER == _PDP_ENDIAN 3005658bcb797978c3472335d93554405aba8236f66San Mehat /* fields in third byte */ 3015658bcb797978c3472335d93554405aba8236f66San Mehat unsigned rd :1; /* recursion desired */ 3025658bcb797978c3472335d93554405aba8236f66San Mehat unsigned tc :1; /* truncated message */ 3035658bcb797978c3472335d93554405aba8236f66San Mehat unsigned aa :1; /* authoritive answer */ 3045658bcb797978c3472335d93554405aba8236f66San Mehat unsigned opcode :4; /* purpose of message */ 3055658bcb797978c3472335d93554405aba8236f66San Mehat unsigned qr :1; /* response flag */ 3065658bcb797978c3472335d93554405aba8236f66San Mehat /* fields in fourth byte */ 3075658bcb797978c3472335d93554405aba8236f66San Mehat unsigned rcode :4; /* response code */ 3085658bcb797978c3472335d93554405aba8236f66San Mehat unsigned cd: 1; /* checking disabled by resolver */ 3095658bcb797978c3472335d93554405aba8236f66San Mehat unsigned ad: 1; /* authentic data from named */ 3105658bcb797978c3472335d93554405aba8236f66San Mehat unsigned unused :1; /* unused bits (MBZ as of 4.9.3a3) */ 3115658bcb797978c3472335d93554405aba8236f66San Mehat unsigned ra :1; /* recursion available */ 3125658bcb797978c3472335d93554405aba8236f66San Mehat#endif 3135658bcb797978c3472335d93554405aba8236f66San Mehat /* remaining bytes */ 3145658bcb797978c3472335d93554405aba8236f66San Mehat unsigned qdcount :16; /* number of question entries */ 3155658bcb797978c3472335d93554405aba8236f66San Mehat unsigned ancount :16; /* number of answer entries */ 3165658bcb797978c3472335d93554405aba8236f66San Mehat unsigned nscount :16; /* number of authority entries */ 3175658bcb797978c3472335d93554405aba8236f66San Mehat unsigned arcount :16; /* number of resource entries */ 3185658bcb797978c3472335d93554405aba8236f66San Mehat} HEADER; 3195658bcb797978c3472335d93554405aba8236f66San Mehat 3205658bcb797978c3472335d93554405aba8236f66San Mehat/* 3215658bcb797978c3472335d93554405aba8236f66San Mehat * Defines for handling compressed domain names 3225658bcb797978c3472335d93554405aba8236f66San Mehat */ 3235658bcb797978c3472335d93554405aba8236f66San Mehat#define INDIR_MASK 0xc0 3245658bcb797978c3472335d93554405aba8236f66San Mehat 3255658bcb797978c3472335d93554405aba8236f66San Mehatextern u_int16_t _getshort(const unsigned char *); 3265658bcb797978c3472335d93554405aba8236f66San Mehatextern u_int32_t _getlong(const unsigned char *); 3275658bcb797978c3472335d93554405aba8236f66San Mehat 3285658bcb797978c3472335d93554405aba8236f66San Mehat/* 3295658bcb797978c3472335d93554405aba8236f66San Mehat * Inline versions of get/put short/long. Pointer is advanced. 3305658bcb797978c3472335d93554405aba8236f66San Mehat * 3315658bcb797978c3472335d93554405aba8236f66San Mehat * These macros demonstrate the property of C whereby it can be 3325658bcb797978c3472335d93554405aba8236f66San Mehat * portable or it can be elegant but rarely both. 3335658bcb797978c3472335d93554405aba8236f66San Mehat */ 3345658bcb797978c3472335d93554405aba8236f66San Mehat#define GETSHORT(s, cp) { \ 3355658bcb797978c3472335d93554405aba8236f66San Mehat unsigned char *t_cp = (unsigned char *)(cp); \ 3365658bcb797978c3472335d93554405aba8236f66San Mehat (s) = ((u_int16_t)t_cp[0] << 8) \ 3375658bcb797978c3472335d93554405aba8236f66San Mehat | ((u_int16_t)t_cp[1]) \ 3385658bcb797978c3472335d93554405aba8236f66San Mehat ; \ 3395658bcb797978c3472335d93554405aba8236f66San Mehat (cp) += INT16SZ; \ 3405658bcb797978c3472335d93554405aba8236f66San Mehat} 3415658bcb797978c3472335d93554405aba8236f66San Mehat 3425658bcb797978c3472335d93554405aba8236f66San Mehat#define GETLONG(l, cp) { \ 3435658bcb797978c3472335d93554405aba8236f66San Mehat unsigned char *t_cp = (unsigned char *)(cp); \ 3445658bcb797978c3472335d93554405aba8236f66San Mehat (l) = ((u_int32_t)t_cp[0] << 24) \ 3455658bcb797978c3472335d93554405aba8236f66San Mehat | ((u_int32_t)t_cp[1] << 16) \ 3465658bcb797978c3472335d93554405aba8236f66San Mehat | ((u_int32_t)t_cp[2] << 8) \ 3475658bcb797978c3472335d93554405aba8236f66San Mehat | ((u_int32_t)t_cp[3]) \ 3485658bcb797978c3472335d93554405aba8236f66San Mehat ; \ 3495658bcb797978c3472335d93554405aba8236f66San Mehat (cp) += INT32SZ; \ 3505658bcb797978c3472335d93554405aba8236f66San Mehat} 3515658bcb797978c3472335d93554405aba8236f66San Mehat 3525658bcb797978c3472335d93554405aba8236f66San Mehat#define PUTSHORT(s, cp) { \ 3535658bcb797978c3472335d93554405aba8236f66San Mehat u_int16_t t_s = (u_int16_t)(s); \ 3545658bcb797978c3472335d93554405aba8236f66San Mehat unsigned char *t_cp = (unsigned char *)(cp); \ 3555658bcb797978c3472335d93554405aba8236f66San Mehat *t_cp++ = t_s >> 8; \ 3565658bcb797978c3472335d93554405aba8236f66San Mehat *t_cp = t_s; \ 3575658bcb797978c3472335d93554405aba8236f66San Mehat (cp) += INT16SZ; \ 3585658bcb797978c3472335d93554405aba8236f66San Mehat} 3595658bcb797978c3472335d93554405aba8236f66San Mehat 3605658bcb797978c3472335d93554405aba8236f66San Mehat#define PUTLONG(l, cp) { \ 3615658bcb797978c3472335d93554405aba8236f66San Mehat u_int32_t t_l = (u_int32_t)(l); \ 3625658bcb797978c3472335d93554405aba8236f66San Mehat unsigned char *t_cp = (unsigned char *)(cp); \ 3635658bcb797978c3472335d93554405aba8236f66San Mehat *t_cp++ = t_l >> 24; \ 3645658bcb797978c3472335d93554405aba8236f66San Mehat *t_cp++ = t_l >> 16; \ 3655658bcb797978c3472335d93554405aba8236f66San Mehat *t_cp++ = t_l >> 8; \ 3665658bcb797978c3472335d93554405aba8236f66San Mehat *t_cp = t_l; \ 3675658bcb797978c3472335d93554405aba8236f66San Mehat (cp) += INT32SZ; \ 3685658bcb797978c3472335d93554405aba8236f66San Mehat} 3695658bcb797978c3472335d93554405aba8236f66San Mehat 3705658bcb797978c3472335d93554405aba8236f66San Mehat#endif /* !_NAMESER_H_ */ 371