| 1 | /* $NetBSD: nameser.h,v 1.19.4.1 2007/05/17 21:25:12 jdc Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 1983, 1989, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * 3. Neither the name of the University nor the names of its contributors
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| 16 | * may be used to endorse or promote products derived from this software
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| 17 | * without specific prior written permission.
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| 18 | *
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| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 29 | * SUCH DAMAGE.
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| 30 | */
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| 31 |
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| 32 | /*
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| 33 | * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
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| 34 | * Copyright (c) 1996-1999 by Internet Software Consortium.
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| 35 | *
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| 36 | * Permission to use, copy, modify, and distribute this software for any
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| 37 | * purpose with or without fee is hereby granted, provided that the above
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| 38 | * copyright notice and this permission notice appear in all copies.
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| 39 | *
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| 40 | * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
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| 41 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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| 42 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
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| 43 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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| 44 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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| 45 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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| 46 | * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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| 47 | */
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| 48 |
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| 49 | /*
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| 50 | * Id: nameser.h,v 1.7.18.1 2005/04/27 05:00:50 sra Exp
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| 51 | */
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| 52 |
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| 53 | #ifndef _ARPA_NAMESER_H_
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| 54 | #define _ARPA_NAMESER_H_
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| 55 |
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| 56 | #define BIND_4_COMPAT
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| 57 |
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| 58 | #include <sys/param.h>
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| 59 | #if (!defined(BSD)) || (BSD < 199306)
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| 60 | # include <sys/bitypes.h>
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| 61 | #else
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| 62 | # include <sys/types.h>
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| 63 | #endif
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| 64 | #include <sys/EfiCdefs.h>
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| 65 |
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| 66 | /*%
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| 67 | * Revision information. This is the release date in YYYYMMDD format.
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| 68 | * It can change every day so the right thing to do with it is use it
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| 69 | * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not
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| 70 | * compare for equality; rather, use it to determine whether your libbind.a
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| 71 | * contains a new enough lib/nameser/ to support the feature you need.
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| 72 | */
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| 73 |
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| 74 | #define __NAMESER 19991006 /*%< New interface version stamp. */
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| 75 |
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| 76 | /*
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| 77 | * Define constants based on RFC0883, RFC1034, RFC 1035
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| 78 | */
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| 79 | #define NS_PACKETSZ 512 /*%< default UDP packet size */
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| 80 | #define NS_MAXDNAME 1025 /*%< maximum domain name */
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| 81 | #define NS_MAXMSG 65535 /*%< maximum message size */
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| 82 | #define NS_MAXCDNAME 255 /*%< maximum compressed domain name */
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| 83 | #define NS_MAXLABEL 63 /*%< maximum length of domain label */
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| 84 | #define NS_HFIXEDSZ 12 /*%< #/bytes of fixed data in header */
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| 85 | #define NS_QFIXEDSZ 4 /*%< #/bytes of fixed data in query */
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| 86 | #define NS_RRFIXEDSZ 10 /*%< #/bytes of fixed data in r record */
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| 87 | #define NS_INT32SZ 4 /*%< #/bytes of data in a u_int32_t */
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| 88 | #define NS_INT16SZ 2 /*%< #/bytes of data in a u_int16_t */
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| 89 | #define NS_INT8SZ 1 /*%< #/bytes of data in a u_int8_t */
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| 90 | #define NS_INADDRSZ 4 /*%< IPv4 T_A */
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| 91 | #define NS_IN6ADDRSZ 16 /*%< IPv6 T_AAAA */
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| 92 | #define NS_CMPRSFLGS 0xc0 /*%< Flag bits indicating name compression. */
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| 93 | #define NS_DEFAULTPORT 53 /*%< For both TCP and UDP. */
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| 94 |
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| 95 | /*
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| 96 | * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
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| 97 | * in synch with it.
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| 98 | */
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| 99 | typedef enum __ns_sect {
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| 100 | ns_s_qd = 0, /*%< Query: Question. */
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| 101 | ns_s_zn = 0, /*%< Update: Zone. */
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| 102 | ns_s_an = 1, /*%< Query: Answer. */
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| 103 | ns_s_pr = 1, /*%< Update: Prerequisites. */
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| 104 | ns_s_ns = 2, /*%< Query: Name servers. */
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| 105 | ns_s_ud = 2, /*%< Update: Update. */
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| 106 | ns_s_ar = 3, /*%< Query|Update: Additional records. */
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| 107 | ns_s_max = 4
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| 108 | } ns_sect;
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| 109 |
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| 110 | /*%
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| 111 | * This is a message handle. It is caller allocated and has no dynamic data.
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| 112 | * This structure is intended to be opaque to all but ns_parse.c, thus the
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| 113 | * leading _'s on the member names. Use the accessor functions, not the _'s.
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| 114 | */
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| 115 | typedef struct __ns_msg {
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| 116 | const u_char *_msg, *_eom;
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| 117 | uint16_t _id, _flags, _counts[ns_s_max];
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| 118 | const u_char *_sections[ns_s_max];
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| 119 | ns_sect _sect;
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| 120 | int _rrnum;
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| 121 | const u_char *_msg_ptr;
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| 122 | } ns_msg;
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| 123 |
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| 124 | /* Private data structure - do not use from outside library. */
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| 125 | struct _ns_flagdata { int mask, shift; };
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| 126 | extern struct _ns_flagdata _ns_flagdata[];
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| 127 |
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| 128 | /* Accessor macros - this is part of the public interface. */
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| 129 | #define ns_msg_getflag(handle, flag) ( \
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| 130 | ((handle)._flags & _ns_flagdata[flag].mask) \
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| 131 | >> _ns_flagdata[flag].shift \
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| 132 | )
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| 133 |
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| 134 | #define ns_msg_id(handle) ((handle)._id + 0)
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| 135 | #define ns_msg_base(handle) ((handle)._msg + 0)
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| 136 | #define ns_msg_end(handle) ((handle)._eom + 0)
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| 137 | #define ns_msg_size(handle) ((size_t)((handle)._eom - (handle)._msg))
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| 138 | #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
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| 139 |
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| 140 | /*%
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| 141 | * This is a parsed record. It is caller allocated and has no dynamic data.
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| 142 | */
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| 143 | typedef struct __ns_rr {
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| 144 | char name[NS_MAXDNAME];
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| 145 | uint16_t type;
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| 146 | uint16_t rr_class;
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| 147 | uint32_t ttl;
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| 148 | uint16_t rdlength;
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| 149 | const u_char * rdata;
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| 150 | } ns_rr;
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| 151 |
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| 152 | /* Accessor macros - this is part of the public interface. */
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| 153 | #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
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| 154 | #define ns_rr_type(rr) ((ns_type)((rr).type + 0))
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| 155 | #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
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| 156 | #define ns_rr_ttl(rr) ((u_long)(rr).ttl + 0)
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| 157 | #define ns_rr_rdlen(rr) ((size_t)(rr).rdlength + 0)
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| 158 | #define ns_rr_rdata(rr) ((rr).rdata + 0)
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| 159 |
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| 160 | /*%
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| 161 | * These don't have to be in the same order as in the packet flags word,
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| 162 | * and they can even overlap in some cases, but they will need to be kept
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| 163 | * in synch with ns_parse.c:ns_flagdata[].
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| 164 | */
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| 165 | typedef enum __ns_flag {
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| 166 | ns_f_qr, /*%< Question/Response. */
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| 167 | ns_f_opcode, /*%< Operation code. */
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| 168 | ns_f_aa, /*%< Authoritative Answer. */
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| 169 | ns_f_tc, /*%< Truncation occurred. */
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| 170 | ns_f_rd, /*%< Recursion Desired. */
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| 171 | ns_f_ra, /*%< Recursion Available. */
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| 172 | ns_f_z, /*%< MBZ. */
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| 173 | ns_f_ad, /*%< Authentic Data (DNSSEC). */
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| 174 | ns_f_cd, /*%< Checking Disabled (DNSSEC). */
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| 175 | ns_f_rcode, /*%< Response code. */
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| 176 | ns_f_max
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| 177 | } ns_flag;
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| 178 |
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| 179 | /*%
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| 180 | * Currently defined opcodes.
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| 181 | */
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| 182 | typedef enum __ns_opcode {
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| 183 | ns_o_query = 0, /*%< Standard query. */
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| 184 | ns_o_iquery = 1, /*%< Inverse query (deprecated/unsupported). */
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| 185 | ns_o_status = 2, /*%< Name server status query (unsupported). */
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| 186 | /* Opcode 3 is undefined/reserved. */
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| 187 | ns_o_notify = 4, /*%< Zone change notification. */
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| 188 | ns_o_update = 5, /*%< Zone update message. */
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| 189 | ns_o_max = 6
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| 190 | } ns_opcode;
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| 191 |
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| 192 | /*%
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| 193 | * Currently defined response codes.
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| 194 | */
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| 195 | typedef enum __ns_rcode {
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| 196 | ns_r_noerror = 0, /*%< No error occurred. */
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| 197 | ns_r_formerr = 1, /*%< Format error. */
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| 198 | ns_r_servfail = 2, /*%< Server failure. */
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| 199 | ns_r_nxdomain = 3, /*%< Name error. */
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| 200 | ns_r_notimpl = 4, /*%< Unimplemented. */
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| 201 | ns_r_refused = 5, /*%< Operation refused. */
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| 202 | /* these are for BIND_UPDATE */
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| 203 | ns_r_yxdomain = 6, /*%< Name exists */
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| 204 | ns_r_yxrrset = 7, /*%< RRset exists */
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| 205 | ns_r_nxrrset = 8, /*%< RRset does not exist */
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| 206 | ns_r_notauth = 9, /*%< Not authoritative for zone */
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| 207 | ns_r_notzone = 10, /*%< Zone of record different from zone section */
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| 208 | ns_r_max = 11,
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| 209 | /* The following are EDNS extended rcodes */
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| 210 | ns_r_badvers = 16,
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| 211 | /* The following are TSIG errors */
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| 212 | ns_r_badsig = 16,
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| 213 | ns_r_badkey = 17,
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| 214 | ns_r_badtime = 18
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| 215 | } ns_rcode;
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| 216 |
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| 217 | /* BIND_UPDATE */
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| 218 | typedef enum __ns_update_operation {
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| 219 | ns_uop_delete = 0,
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| 220 | ns_uop_add = 1,
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| 221 | ns_uop_max = 2
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| 222 | } ns_update_operation;
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| 223 |
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| 224 | /*
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| 225 | * This RR-like structure is particular to UPDATE.
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| 226 | */
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| 227 | struct _ns_updrec {
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| 228 | struct _ns_updrec *r_prev; /* prev record */
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| 229 | struct _ns_updrec *r_next; /* next record */
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| 230 | u_int8_t r_section; /* ZONE/PREREQUISITE/UPDATE */
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| 231 | char * r_dname; /* owner of the RR */
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| 232 | u_int16_t r_class; /* class number */
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| 233 | u_int16_t r_type; /* type number */
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| 234 | u_int32_t r_ttl; /* time to live */
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| 235 | u_char * r_data; /* rdata fields as text string */
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| 236 | u_int16_t r_size; /* size of r_data field */
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| 237 | int r_opcode; /* type of operation */
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| 238 | /* following fields for private use by the resolver/server routines */
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| 239 | struct _ns_updrec *r_grpnext; /* next record when grouped */
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| 240 | struct databuf *r_dp; /* databuf to process */
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| 241 | struct databuf *r_deldp; /* databuf's deleted/overwritten */
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| 242 | u_int16_t r_zone; /* zone number on server */
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| 243 | };
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| 244 | typedef struct _ns_updrec ns_updrec;
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| 245 |
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| 246 | /*%
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| 247 | * This structure is used for TSIG authenticated messages
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| 248 | */
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| 249 | struct ns_tsig_key {
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| 250 | char name[NS_MAXDNAME], alg[NS_MAXDNAME];
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| 251 | unsigned char *data;
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| 252 | int len;
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| 253 | };
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| 254 | typedef struct ns_tsig_key ns_tsig_key;
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| 255 |
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| 256 | /*%
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| 257 | * This structure is used for TSIG authenticated TCP messages
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| 258 | */
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| 259 | struct ns_tcp_tsig_state {
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| 260 | int counter;
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| 261 | struct dst_key *key;
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| 262 | void *ctx;
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| 263 | unsigned char sig[NS_PACKETSZ];
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| 264 | int siglen;
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| 265 | };
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| 266 | typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
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| 267 |
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| 268 | #define NS_TSIG_FUDGE 300
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| 269 | #define NS_TSIG_TCP_COUNT 100
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| 270 | #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
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| 271 |
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| 272 | #define NS_TSIG_ERROR_NO_TSIG -10
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| 273 | #define NS_TSIG_ERROR_NO_SPACE -11
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| 274 | #define NS_TSIG_ERROR_FORMERR -12
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| 275 |
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| 276 | /*%
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| 277 | * Currently defined type values for resources and queries.
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| 278 | */
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| 279 | typedef enum __ns_type {
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| 280 | ns_t_invalid = 0, /*%< Cookie. */
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| 281 | ns_t_a = 1, /*%< Host address. */
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| 282 | ns_t_ns = 2, /*%< Authoritative server. */
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| 283 | ns_t_md = 3, /*%< Mail destination. */
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| 284 | ns_t_mf = 4, /*%< Mail forwarder. */
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| 285 | ns_t_cname = 5, /*%< Canonical name. */
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| 286 | ns_t_soa = 6, /*%< Start of authority zone. */
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| 287 | ns_t_mb = 7, /*%< Mailbox domain name. */
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| 288 | ns_t_mg = 8, /*%< Mail group member. */
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| 289 | ns_t_mr = 9, /*%< Mail rename name. */
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| 290 | ns_t_null = 10, /*%< Null resource record. */
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| 291 | ns_t_wks = 11, /*%< Well known service. */
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| 292 | ns_t_ptr = 12, /*%< Domain name pointer. */
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| 293 | ns_t_hinfo = 13, /*%< Host information. */
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| 294 | ns_t_minfo = 14, /*%< Mailbox information. */
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| 295 | ns_t_mx = 15, /*%< Mail routing information. */
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| 296 | ns_t_txt = 16, /*%< Text strings. */
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| 297 | ns_t_rp = 17, /*%< Responsible person. */
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| 298 | ns_t_afsdb = 18, /*%< AFS cell database. */
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| 299 | ns_t_x25 = 19, /*%< X_25 calling address. */
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| 300 | ns_t_isdn = 20, /*%< ISDN calling address. */
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| 301 | ns_t_rt = 21, /*%< Router. */
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| 302 | ns_t_nsap = 22, /*%< NSAP address. */
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| 303 | ns_t_nsap_ptr = 23, /*%< Reverse NSAP lookup (deprecated). */
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| 304 | ns_t_sig = 24, /*%< Security signature. */
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| 305 | ns_t_key = 25, /*%< Security key. */
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| 306 | ns_t_px = 26, /*%< X.400 mail mapping. */
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| 307 | ns_t_gpos = 27, /*%< Geographical position (withdrawn). */
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| 308 | ns_t_aaaa = 28, /*%< Ip6 Address. */
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| 309 | ns_t_loc = 29, /*%< Location Information. */
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| 310 | ns_t_nxt = 30, /*%< Next domain (security). */
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| 311 | ns_t_eid = 31, /*%< Endpoint identifier. */
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| 312 | ns_t_nimloc = 32, /*%< Nimrod Locator. */
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| 313 | ns_t_srv = 33, /*%< Server Selection. */
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| 314 | ns_t_atma = 34, /*%< ATM Address */
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| 315 | ns_t_naptr = 35, /*%< Naming Authority PoinTeR */
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| 316 | ns_t_kx = 36, /*%< Key Exchange */
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| 317 | ns_t_cert = 37, /*%< Certification record */
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| 318 | ns_t_a6 = 38, /*%< IPv6 address (deprecates AAAA) */
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| 319 | ns_t_dname = 39, /*%< Non-terminal DNAME (for IPv6) */
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| 320 | ns_t_sink = 40, /*%< Kitchen sink (experimentatl) */
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| 321 | ns_t_opt = 41, /*%< EDNS0 option (meta-RR) */
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| 322 | ns_t_apl = 42, /*%< Address prefix list (RFC3123) */
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| 323 | ns_t_tkey = 249, /*%< Transaction key */
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| 324 | ns_t_tsig = 250, /*%< Transaction signature. */
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| 325 | ns_t_ixfr = 251, /*%< Incremental zone transfer. */
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| 326 | ns_t_axfr = 252, /*%< Transfer zone of authority. */
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| 327 | ns_t_mailb = 253, /*%< Transfer mailbox records. */
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| 328 | ns_t_maila = 254, /*%< Transfer mail agent records. */
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| 329 | ns_t_any = 255, /*%< Wildcard match. */
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| 330 | ns_t_zxfr = 256, /*%< BIND-specific, nonstandard. */
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| 331 | ns_t_max = 65536
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| 332 | } ns_type;
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| 333 |
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| 334 | /* Exclusively a QTYPE? (not also an RTYPE) */
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| 335 | #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
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| 336 | (t) == ns_t_mailb || (t) == ns_t_maila)
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| 337 | /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
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| 338 | #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
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| 339 | /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
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| 340 | #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
|
|---|
| 341 | #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
|
|---|
| 342 | #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
|
|---|
| 343 | (t) == ns_t_zxfr)
|
|---|
| 344 |
|
|---|
| 345 | /*%
|
|---|
| 346 | * Values for class field
|
|---|
| 347 | */
|
|---|
| 348 | typedef enum __ns_class {
|
|---|
| 349 | ns_c_invalid = 0, /*%< Cookie. */
|
|---|
| 350 | ns_c_in = 1, /*%< Internet. */
|
|---|
| 351 | ns_c_2 = 2, /*%< unallocated/unsupported. */
|
|---|
| 352 | ns_c_chaos = 3, /*%< MIT Chaos-net. */
|
|---|
| 353 | ns_c_hs = 4, /*%< MIT Hesiod. */
|
|---|
| 354 | /* Query class values which do not appear in resource records */
|
|---|
| 355 | ns_c_none = 254, /*%< for prereq. sections in update requests */
|
|---|
| 356 | ns_c_any = 255, /*%< Wildcard match. */
|
|---|
| 357 | ns_c_max = 65536
|
|---|
| 358 | } ns_class;
|
|---|
| 359 |
|
|---|
| 360 | /* DNSSEC constants. */
|
|---|
| 361 |
|
|---|
| 362 | typedef enum __ns_key_types {
|
|---|
| 363 | ns_kt_rsa = 1, /*%< key type RSA/MD5 */
|
|---|
| 364 | ns_kt_dh = 2, /*%< Diffie Hellman */
|
|---|
| 365 | ns_kt_dsa = 3, /*%< Digital Signature Standard (MANDATORY) */
|
|---|
| 366 | ns_kt_private = 254 /*%< Private key type starts with OID */
|
|---|
| 367 | } ns_key_types;
|
|---|
| 368 |
|
|---|
| 369 | typedef enum __ns_cert_types {
|
|---|
| 370 | cert_t_pkix = 1, /*%< PKIX (X.509v3) */
|
|---|
| 371 | cert_t_spki = 2, /*%< SPKI */
|
|---|
| 372 | cert_t_pgp = 3, /*%< PGP */
|
|---|
| 373 | cert_t_url = 253, /*%< URL private type */
|
|---|
| 374 | cert_t_oid = 254 /*%< OID private type */
|
|---|
| 375 | } ns_cert_types;
|
|---|
| 376 |
|
|---|
| 377 | /* Flags field of the KEY RR rdata. */
|
|---|
| 378 | #define NS_KEY_TYPEMASK 0xC000 /*%< Mask for "type" bits */
|
|---|
| 379 | #define NS_KEY_TYPE_AUTH_CONF 0x0000 /*%< Key usable for both */
|
|---|
| 380 | #define NS_KEY_TYPE_CONF_ONLY 0x8000 /*%< Key usable for confidentiality */
|
|---|
| 381 | #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /*%< Key usable for authentication */
|
|---|
| 382 | #define NS_KEY_TYPE_NO_KEY 0xC000 /*%< No key usable for either; no key */
|
|---|
| 383 | /* The type bits can also be interpreted independently, as single bits: */
|
|---|
| 384 | #define NS_KEY_NO_AUTH 0x8000 /*%< Key unusable for authentication */
|
|---|
| 385 | #define NS_KEY_NO_CONF 0x4000 /*%< Key unusable for confidentiality */
|
|---|
| 386 | #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
|
|---|
| 387 | #define NS_KEY_EXTENDED_FLAGS 0x1000 /*%< reserved - must be zero */
|
|---|
| 388 | #define NS_KEY_RESERVED4 0x0800 /*%< reserved - must be zero */
|
|---|
| 389 | #define NS_KEY_RESERVED5 0x0400 /*%< reserved - must be zero */
|
|---|
| 390 | #define NS_KEY_NAME_TYPE 0x0300 /*%< these bits determine the type */
|
|---|
| 391 | #define NS_KEY_NAME_USER 0x0000 /*%< key is assoc. with user */
|
|---|
| 392 | #define NS_KEY_NAME_ENTITY 0x0200 /*%< key is assoc. with entity eg host */
|
|---|
| 393 | #define NS_KEY_NAME_ZONE 0x0100 /*%< key is zone key */
|
|---|
| 394 | #define NS_KEY_NAME_RESERVED 0x0300 /*%< reserved meaning */
|
|---|
| 395 | #define NS_KEY_RESERVED8 0x0080 /*%< reserved - must be zero */
|
|---|
| 396 | #define NS_KEY_RESERVED9 0x0040 /*%< reserved - must be zero */
|
|---|
| 397 | #define NS_KEY_RESERVED10 0x0020 /*%< reserved - must be zero */
|
|---|
| 398 | #define NS_KEY_RESERVED11 0x0010 /*%< reserved - must be zero */
|
|---|
| 399 | #define NS_KEY_SIGNATORYMASK 0x000F /*%< key can sign RR's of same name */
|
|---|
| 400 | #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
|
|---|
| 401 | NS_KEY_RESERVED4 | \
|
|---|
| 402 | NS_KEY_RESERVED5 | \
|
|---|
| 403 | NS_KEY_RESERVED8 | \
|
|---|
| 404 | NS_KEY_RESERVED9 | \
|
|---|
| 405 | NS_KEY_RESERVED10 | \
|
|---|
| 406 | NS_KEY_RESERVED11 )
|
|---|
| 407 | #define NS_KEY_RESERVED_BITMASK2 0xFFFF /*%< no bits defined here */
|
|---|
| 408 |
|
|---|
| 409 | /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
|
|---|
| 410 | #define NS_ALG_MD5RSA 1 /*%< MD5 with RSA */
|
|---|
| 411 | #define NS_ALG_DH 2 /*%< Diffie Hellman KEY */
|
|---|
| 412 | #define NS_ALG_DSA 3 /*%< DSA KEY */
|
|---|
| 413 | #define NS_ALG_DSS NS_ALG_DSA
|
|---|
| 414 | #define NS_ALG_EXPIRE_ONLY 253 /*%< No alg, no security */
|
|---|
| 415 | #define NS_ALG_PRIVATE_OID 254 /*%< Key begins with OID giving alg */
|
|---|
| 416 |
|
|---|
| 417 | /* Protocol values */
|
|---|
| 418 | /* value 0 is reserved */
|
|---|
| 419 | #define NS_KEY_PROT_TLS 1
|
|---|
| 420 | #define NS_KEY_PROT_EMAIL 2
|
|---|
| 421 | #define NS_KEY_PROT_DNSSEC 3
|
|---|
| 422 | #define NS_KEY_PROT_IPSEC 4
|
|---|
| 423 | #define NS_KEY_PROT_ANY 255
|
|---|
| 424 |
|
|---|
| 425 | /* Signatures */
|
|---|
| 426 | #define NS_MD5RSA_MIN_BITS 512 /*%< Size of a mod or exp in bits */
|
|---|
| 427 | #define NS_MD5RSA_MAX_BITS 4096
|
|---|
| 428 | /* Total of binary mod and exp */
|
|---|
| 429 | #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
|
|---|
| 430 | /* Max length of text sig block */
|
|---|
| 431 | #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
|
|---|
| 432 | #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
|
|---|
| 433 | #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
|
|---|
| 434 |
|
|---|
| 435 | #define NS_DSA_SIG_SIZE 41
|
|---|
| 436 | #define NS_DSA_MIN_SIZE 213
|
|---|
| 437 | #define NS_DSA_MAX_BYTES 405
|
|---|
| 438 |
|
|---|
| 439 | /* Offsets into SIG record rdata to find various values */
|
|---|
| 440 | #define NS_SIG_TYPE 0 /*%< Type flags */
|
|---|
| 441 | #define NS_SIG_ALG 2 /*%< Algorithm */
|
|---|
| 442 | #define NS_SIG_LABELS 3 /*%< How many labels in name */
|
|---|
| 443 | #define NS_SIG_OTTL 4 /*%< Original TTL */
|
|---|
| 444 | #define NS_SIG_EXPIR 8 /*%< Expiration time */
|
|---|
| 445 | #define NS_SIG_SIGNED 12 /*%< Signature time */
|
|---|
| 446 | #define NS_SIG_FOOT 16 /*%< Key footprint */
|
|---|
| 447 | #define NS_SIG_SIGNER 18 /*%< Domain name of who signed it */
|
|---|
| 448 |
|
|---|
| 449 | /* How RR types are represented as bit-flags in NXT records */
|
|---|
| 450 | #define NS_NXT_BITS 8
|
|---|
| 451 | #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
|
|---|
| 452 | #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
|
|---|
| 453 | #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
|
|---|
| 454 | #define NS_NXT_MAX 127
|
|---|
| 455 |
|
|---|
| 456 | /*%
|
|---|
| 457 | * EDNS0 extended flags, host order.
|
|---|
| 458 | */
|
|---|
| 459 | #define NS_OPT_DNSSEC_OK 0x8000U
|
|---|
| 460 |
|
|---|
| 461 | /*%
|
|---|
| 462 | * Inline versions of get/put short/long. Pointer is advanced.
|
|---|
| 463 | */
|
|---|
| 464 | #define NS_GET16(s, cp) do { \
|
|---|
| 465 | const u_char *t_cp = (const u_char *)(cp); \
|
|---|
| 466 | (s) = ((uint16_t)t_cp[0] << 8) \
|
|---|
| 467 | | ((uint16_t)t_cp[1]) \
|
|---|
| 468 | ; \
|
|---|
| 469 | (cp) += NS_INT16SZ; \
|
|---|
| 470 | } while (/*CONSTCOND*/0)
|
|---|
| 471 |
|
|---|
| 472 | #define NS_GET32(l, cp) do { \
|
|---|
| 473 | const u_char *t_cp = (const u_char *)(cp); \
|
|---|
| 474 | (l) = ((uint32_t)t_cp[0] << 24) \
|
|---|
| 475 | | ((uint32_t)t_cp[1] << 16) \
|
|---|
| 476 | | ((uint32_t)t_cp[2] << 8) \
|
|---|
| 477 | | ((uint32_t)t_cp[3]) \
|
|---|
| 478 | ; \
|
|---|
| 479 | (cp) += NS_INT32SZ; \
|
|---|
| 480 | } while (/*CONSTCOND*/0)
|
|---|
| 481 |
|
|---|
| 482 | #define NS_PUT16(s, cp) do { \
|
|---|
| 483 | uint32_t t_s = (uint32_t)(s); \
|
|---|
| 484 | u_char *t_cp = (u_char *)(cp); \
|
|---|
| 485 | *t_cp++ = (u_char)( t_s >> 8 ); \
|
|---|
| 486 | *t_cp = (u_char)( t_s ); \
|
|---|
| 487 | (cp) += NS_INT16SZ; \
|
|---|
| 488 | } while (/*CONSTCOND*/0)
|
|---|
| 489 |
|
|---|
| 490 | #define NS_PUT32(l, cp) do { \
|
|---|
| 491 | uint32_t t_l = (uint32_t)(l); \
|
|---|
| 492 | u_char *t_cp = (u_char *)(cp); \
|
|---|
| 493 | *t_cp++ = (u_char)( t_l >> 24 ); \
|
|---|
| 494 | *t_cp++ = (u_char)( t_l >> 16 ); \
|
|---|
| 495 | *t_cp++ = (u_char)( t_l >> 8 ); \
|
|---|
| 496 | *t_cp = (u_char)( t_l ); \
|
|---|
| 497 | (cp) += NS_INT32SZ; \
|
|---|
| 498 | } while (/*CONSTCOND*/0)
|
|---|
| 499 |
|
|---|
| 500 | /*%
|
|---|
| 501 | * ANSI C identifier hiding for bind's lib/nameser.
|
|---|
| 502 | */
|
|---|
| 503 | #define ns_get16 __ns_get16
|
|---|
| 504 | #define ns_get32 __ns_get32
|
|---|
| 505 | #define ns_put16 __ns_put16
|
|---|
| 506 | #define ns_put32 __ns_put32
|
|---|
| 507 | #define ns_initparse __ns_initparse
|
|---|
| 508 | #define ns_skiprr __ns_skiprr
|
|---|
| 509 | #define ns_parserr __ns_parserr
|
|---|
| 510 | #define ns_sprintrr __ns_sprintrr
|
|---|
| 511 | #define ns_sprintrrf __ns_sprintrrf
|
|---|
| 512 | #define ns_format_ttl __ns_format_ttl
|
|---|
| 513 | #define ns_parse_ttl __ns_parse_ttl
|
|---|
| 514 | #define ns_datetosecs __ns_datetosecs
|
|---|
| 515 | #define ns_name_ntol __ns_name_ntol
|
|---|
| 516 | #define ns_name_ntop __ns_name_ntop
|
|---|
| 517 | #define ns_name_pton __ns_name_pton
|
|---|
| 518 | #define ns_name_unpack __ns_name_unpack
|
|---|
| 519 | #define ns_name_pack __ns_name_pack
|
|---|
| 520 | #define ns_name_compress __ns_name_compress
|
|---|
| 521 | #define ns_name_uncompress __ns_name_uncompress
|
|---|
| 522 | #define ns_name_skip __ns_name_skip
|
|---|
| 523 | #define ns_name_rollback __ns_name_rollback
|
|---|
| 524 | #define ns_sign __ns_sign
|
|---|
| 525 | #define ns_sign2 __ns_sign2
|
|---|
| 526 | #define ns_sign_tcp __ns_sign_tcp
|
|---|
| 527 | #define ns_sign_tcp2 __ns_sign_tcp2
|
|---|
| 528 | #define ns_sign_tcp_init __ns_sign_tcp_init
|
|---|
| 529 | #define ns_find_tsig __ns_find_tsig
|
|---|
| 530 | #define ns_verify __ns_verify
|
|---|
| 531 | #define ns_verify_tcp __ns_verify_tcp
|
|---|
| 532 | #define ns_verify_tcp_init __ns_verify_tcp_init
|
|---|
| 533 | #define ns_samedomain __ns_samedomain
|
|---|
| 534 | #define ns_subdomain __ns_subdomain
|
|---|
| 535 | #define ns_makecanon __ns_makecanon
|
|---|
| 536 | #define ns_samename __ns_samename
|
|---|
| 537 |
|
|---|
| 538 | __BEGIN_DECLS
|
|---|
| 539 | uint16_t ns_get16(const u_char *);
|
|---|
| 540 | uint32_t ns_get32(const u_char *);
|
|---|
| 541 | void ns_put16(uint16_t, u_char *);
|
|---|
| 542 | void ns_put32(uint32_t, u_char *);
|
|---|
| 543 | int ns_initparse(const u_char *, int, ns_msg *);
|
|---|
| 544 | int ns_skiprr(const u_char *, const u_char *, ns_sect, int);
|
|---|
| 545 | int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
|
|---|
| 546 | int ns_sprintrr(const ns_msg *, const ns_rr *,
|
|---|
| 547 | const char *, const char *, char *, size_t);
|
|---|
| 548 | int ns_sprintrrf(const u_char *, size_t, const char *,
|
|---|
| 549 | ns_class, ns_type, u_long, const u_char *,
|
|---|
| 550 | size_t, const char *, const char *,
|
|---|
| 551 | char *, size_t);
|
|---|
| 552 | int ns_format_ttl(u_long, char *, size_t);
|
|---|
| 553 | int ns_parse_ttl(const char *, u_long *);
|
|---|
| 554 | uint32_t ns_datetosecs(const char *cp, int *errp);
|
|---|
| 555 | int ns_name_ntol(const u_char *, u_char *, size_t);
|
|---|
| 556 | int ns_name_ntop(const u_char *, char *, size_t);
|
|---|
| 557 | int ns_name_pton(const char *, u_char *, size_t);
|
|---|
| 558 | int ns_name_unpack(const u_char *, const u_char *,
|
|---|
| 559 | const u_char *, u_char *, size_t);
|
|---|
| 560 | int ns_name_pack(const u_char *, u_char *, int,
|
|---|
| 561 | const u_char **, const u_char **);
|
|---|
| 562 | int ns_name_uncompress(const u_char *, const u_char *,
|
|---|
| 563 | const u_char *, char *, size_t);
|
|---|
| 564 | int ns_name_compress(const char *, u_char *, size_t,
|
|---|
| 565 | const u_char **, const u_char **);
|
|---|
| 566 | int ns_name_skip(const u_char **, const u_char *);
|
|---|
| 567 | void ns_name_rollback(const u_char *, const u_char **,
|
|---|
| 568 | const u_char **);
|
|---|
| 569 | int ns_sign(u_char *, int *, int, int, void *,
|
|---|
| 570 | const u_char *, int, u_char *, int *, time_t);
|
|---|
| 571 | int ns_sign2(u_char *, int *, int, int, void *,
|
|---|
| 572 | const u_char *, int, u_char *, int *, time_t,
|
|---|
| 573 | u_char **, u_char **);
|
|---|
| 574 | int ns_sign_tcp(u_char *, int *, int, int,
|
|---|
| 575 | ns_tcp_tsig_state *, int);
|
|---|
| 576 | int ns_sign_tcp2(u_char *, int *, int, int,
|
|---|
| 577 | ns_tcp_tsig_state *, int,
|
|---|
| 578 | u_char **, u_char **);
|
|---|
| 579 | int ns_sign_tcp_init(void *, const u_char *, int,
|
|---|
| 580 | ns_tcp_tsig_state *);
|
|---|
| 581 | u_char *ns_find_tsig(u_char *, u_char *);
|
|---|
| 582 | int ns_verify(u_char *, int *, void *,
|
|---|
| 583 | const u_char *, int, u_char *, int *,
|
|---|
| 584 | time_t *, int);
|
|---|
| 585 | int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);
|
|---|
| 586 | int ns_verify_tcp_init(void *, const u_char *, int,
|
|---|
| 587 | ns_tcp_tsig_state *);
|
|---|
| 588 | int ns_samedomain(const char *, const char *);
|
|---|
| 589 | int ns_subdomain(const char *, const char *);
|
|---|
| 590 | int ns_makecanon(const char *, char *, size_t);
|
|---|
| 591 | int ns_samename(const char *, const char *);
|
|---|
| 592 | __END_DECLS
|
|---|
| 593 |
|
|---|
| 594 | #ifdef BIND_4_COMPAT
|
|---|
| 595 | #include <arpa/nameser_compat.h>
|
|---|
| 596 | #endif
|
|---|
| 597 |
|
|---|
| 598 | #endif /* !_ARPA_NAMESER_H_ */
|
|---|
