155682Smarkm/* 2102644Snectar * Copyright (c) 1995 - 2002 Kungliga Tekniska H�gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 555682Smarkm * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 955682Smarkm * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 1255682Smarkm * 1355682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1455682Smarkm * notice, this list of conditions and the following disclaimer in the 1555682Smarkm * documentation and/or other materials provided with the distribution. 1655682Smarkm * 1755682Smarkm * 3. Neither the name of the Institute nor the names of its contributors 1855682Smarkm * may be used to endorse or promote products derived from this software 1955682Smarkm * without specific prior written permission. 2055682Smarkm * 2155682Smarkm * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2255682Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855682Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155682Smarkm * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 34178825Sdfr/* $Id: resolve.h 14773 2005-04-12 11:29:18Z lha $ */ 3555682Smarkm 3655682Smarkm#ifndef __RESOLVE_H__ 3755682Smarkm#define __RESOLVE_H__ 3855682Smarkm 39178825Sdfr#ifndef ROKEN_LIB_FUNCTION 40178825Sdfr#ifdef _WIN32 41178825Sdfr#define ROKEN_LIB_FUNCTION _stdcall 42178825Sdfr#else 43178825Sdfr#define ROKEN_LIB_FUNCTION 44178825Sdfr#endif 45178825Sdfr#endif 46178825Sdfr 47178825Sdfrtypedef enum { 48178825Sdfr rk_ns_t_invalid = 0, /* Cookie. */ 49178825Sdfr rk_ns_t_a = 1, /* Host address. */ 50178825Sdfr rk_ns_t_ns = 2, /* Authoritative server. */ 51178825Sdfr rk_ns_t_md = 3, /* Mail destination. */ 52178825Sdfr rk_ns_t_mf = 4, /* Mail forwarder. */ 53178825Sdfr rk_ns_t_cname = 5, /* Canonical name. */ 54178825Sdfr rk_ns_t_soa = 6, /* Start of authority zone. */ 55178825Sdfr rk_ns_t_mb = 7, /* Mailbox domain name. */ 56178825Sdfr rk_ns_t_mg = 8, /* Mail group member. */ 57178825Sdfr rk_ns_t_mr = 9, /* Mail rename name. */ 58178825Sdfr rk_ns_t_null = 10, /* Null resource record. */ 59178825Sdfr rk_ns_t_wks = 11, /* Well known service. */ 60178825Sdfr rk_ns_t_ptr = 12, /* Domain name pointer. */ 61178825Sdfr rk_ns_t_hinfo = 13, /* Host information. */ 62178825Sdfr rk_ns_t_minfo = 14, /* Mailbox information. */ 63178825Sdfr rk_ns_t_mx = 15, /* Mail routing information. */ 64178825Sdfr rk_ns_t_txt = 16, /* Text strings. */ 65178825Sdfr rk_ns_t_rp = 17, /* Responsible person. */ 66178825Sdfr rk_ns_t_afsdb = 18, /* AFS cell database. */ 67178825Sdfr rk_ns_t_x25 = 19, /* X_25 calling address. */ 68178825Sdfr rk_ns_t_isdn = 20, /* ISDN calling address. */ 69178825Sdfr rk_ns_t_rt = 21, /* Router. */ 70178825Sdfr rk_ns_t_nsap = 22, /* NSAP address. */ 71178825Sdfr rk_ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ 72178825Sdfr rk_ns_t_sig = 24, /* Security signature. */ 73178825Sdfr rk_ns_t_key = 25, /* Security key. */ 74178825Sdfr rk_ns_t_px = 26, /* X.400 mail mapping. */ 75178825Sdfr rk_ns_t_gpos = 27, /* Geographical position (withdrawn). */ 76178825Sdfr rk_ns_t_aaaa = 28, /* Ip6 Address. */ 77178825Sdfr rk_ns_t_loc = 29, /* Location Information. */ 78178825Sdfr rk_ns_t_nxt = 30, /* Next domain (security). */ 79178825Sdfr rk_ns_t_eid = 31, /* Endpoint identifier. */ 80178825Sdfr rk_ns_t_nimloc = 32, /* Nimrod Locator. */ 81178825Sdfr rk_ns_t_srv = 33, /* Server Selection. */ 82178825Sdfr rk_ns_t_atma = 34, /* ATM Address */ 83178825Sdfr rk_ns_t_naptr = 35, /* Naming Authority PoinTeR */ 84178825Sdfr rk_ns_t_kx = 36, /* Key Exchange */ 85178825Sdfr rk_ns_t_cert = 37, /* Certification record */ 86178825Sdfr rk_ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ 87178825Sdfr rk_ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ 88178825Sdfr rk_ns_t_sink = 40, /* Kitchen sink (experimentatl) */ 89178825Sdfr rk_ns_t_opt = 41, /* EDNS0 option (meta-RR) */ 90178825Sdfr rk_ns_t_apl = 42, /* Address prefix list (RFC 3123) */ 91178825Sdfr rk_ns_t_ds = 43, /* Delegation Signer (RFC 3658) */ 92178825Sdfr rk_ns_t_sshfp = 44, /* SSH fingerprint */ 93178825Sdfr rk_ns_t_tkey = 249, /* Transaction key */ 94178825Sdfr rk_ns_t_tsig = 250, /* Transaction signature. */ 95178825Sdfr rk_ns_t_ixfr = 251, /* Incremental zone transfer. */ 96178825Sdfr rk_ns_t_axfr = 252, /* Transfer zone of authority. */ 97178825Sdfr rk_ns_t_mailb = 253, /* Transfer mailbox records. */ 98178825Sdfr rk_ns_t_maila = 254, /* Transfer mail agent records. */ 99178825Sdfr rk_ns_t_any = 255, /* Wildcard match. */ 100178825Sdfr rk_ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ 101178825Sdfr rk_ns_t_max = 65536 102178825Sdfr} rk_ns_type; 103178825Sdfr 10455682Smarkm/* We use these, but they are not always present in <arpa/nameser.h> */ 10555682Smarkm 106178825Sdfr#ifndef C_IN 107178825Sdfr#define C_IN 1 108178825Sdfr#endif 109178825Sdfr 110178825Sdfr#ifndef T_A 111178825Sdfr#define T_A 1 112178825Sdfr#endif 113178825Sdfr#ifndef T_NS 114178825Sdfr#define T_NS 2 115178825Sdfr#endif 116178825Sdfr#ifndef T_CNAME 117178825Sdfr#define T_CNAME 5 118178825Sdfr#endif 119178825Sdfr#ifndef T_SOA 120178825Sdfr#define T_SOA 5 121178825Sdfr#endif 122178825Sdfr#ifndef T_PTR 123178825Sdfr#define T_PTR 12 124178825Sdfr#endif 125178825Sdfr#ifndef T_MX 126178825Sdfr#define T_MX 15 127178825Sdfr#endif 12855682Smarkm#ifndef T_TXT 12955682Smarkm#define T_TXT 16 13055682Smarkm#endif 13155682Smarkm#ifndef T_AFSDB 13255682Smarkm#define T_AFSDB 18 13355682Smarkm#endif 13472445Sassar#ifndef T_SIG 13572445Sassar#define T_SIG 24 13672445Sassar#endif 13772445Sassar#ifndef T_KEY 13872445Sassar#define T_KEY 25 13972445Sassar#endif 140102644Snectar#ifndef T_AAAA 141102644Snectar#define T_AAAA 28 142102644Snectar#endif 14355682Smarkm#ifndef T_SRV 14455682Smarkm#define T_SRV 33 14555682Smarkm#endif 14655682Smarkm#ifndef T_NAPTR 14755682Smarkm#define T_NAPTR 35 14855682Smarkm#endif 14972445Sassar#ifndef T_CERT 15072445Sassar#define T_CERT 37 15172445Sassar#endif 152178825Sdfr#ifndef T_SSHFP 153178825Sdfr#define T_SSHFP 44 154178825Sdfr#endif 15555682Smarkm 156178825Sdfr#ifndef MAXDNAME 157178825Sdfr#define MAXDNAME 1025 158178825Sdfr#endif 159178825Sdfr 160102644Snectar#define dns_query rk_dns_query 161102644Snectar#define mx_record rk_mx_record 162102644Snectar#define srv_record rk_srv_record 163102644Snectar#define key_record rk_key_record 164102644Snectar#define sig_record rk_sig_record 165102644Snectar#define cert_record rk_cert_record 166178825Sdfr#define sshfp_record rk_sshfp_record 167102644Snectar#define resource_record rk_resource_record 168102644Snectar#define dns_reply rk_dns_reply 169102644Snectar 170102644Snectar#define dns_lookup rk_dns_lookup 171102644Snectar#define dns_free_data rk_dns_free_data 172102644Snectar#define dns_string_to_type rk_dns_string_to_type 173102644Snectar#define dns_type_to_string rk_dns_type_to_string 174102644Snectar#define dns_srv_order rk_dns_srv_order 175102644Snectar 17655682Smarkmstruct dns_query{ 17755682Smarkm char *domain; 17855682Smarkm unsigned type; 17955682Smarkm unsigned class; 18055682Smarkm}; 18155682Smarkm 18255682Smarkmstruct mx_record{ 18355682Smarkm unsigned preference; 18455682Smarkm char domain[1]; 18555682Smarkm}; 18655682Smarkm 18755682Smarkmstruct srv_record{ 18855682Smarkm unsigned priority; 18955682Smarkm unsigned weight; 19055682Smarkm unsigned port; 19155682Smarkm char target[1]; 19255682Smarkm}; 19355682Smarkm 19472445Sassarstruct key_record { 19572445Sassar unsigned flags; 19672445Sassar unsigned protocol; 19772445Sassar unsigned algorithm; 19872445Sassar size_t key_len; 19972445Sassar u_char key_data[1]; 20072445Sassar}; 20172445Sassar 20272445Sassarstruct sig_record { 20372445Sassar unsigned type; 20472445Sassar unsigned algorithm; 20572445Sassar unsigned labels; 20672445Sassar unsigned orig_ttl; 20772445Sassar unsigned sig_expiration; 20872445Sassar unsigned sig_inception; 20972445Sassar unsigned key_tag; 21072445Sassar char *signer; 21172445Sassar unsigned sig_len; 21272445Sassar char sig_data[1]; /* also includes signer */ 21372445Sassar}; 21472445Sassar 21572445Sassarstruct cert_record { 21672445Sassar unsigned type; 21772445Sassar unsigned tag; 21872445Sassar unsigned algorithm; 21972445Sassar size_t cert_len; 22072445Sassar u_char cert_data[1]; 22172445Sassar}; 22272445Sassar 223178825Sdfrstruct sshfp_record { 224178825Sdfr unsigned algorithm; 225178825Sdfr unsigned type; 226178825Sdfr size_t sshfp_len; 227178825Sdfr u_char sshfp_data[1]; 228178825Sdfr}; 229178825Sdfr 230178825Sdfrstruct ds_record { 231178825Sdfr unsigned key_tag; 232178825Sdfr unsigned algorithm; 233178825Sdfr unsigned digest_type; 234178825Sdfr unsigned digest_len; 235178825Sdfr u_char digest_data[1]; 236178825Sdfr}; 237178825Sdfr 23855682Smarkmstruct resource_record{ 23955682Smarkm char *domain; 24055682Smarkm unsigned type; 24155682Smarkm unsigned class; 24255682Smarkm unsigned ttl; 24355682Smarkm unsigned size; 24455682Smarkm union { 24555682Smarkm void *data; 24655682Smarkm struct mx_record *mx; 24755682Smarkm struct mx_record *afsdb; /* mx and afsdb are identical */ 24855682Smarkm struct srv_record *srv; 24955682Smarkm struct in_addr *a; 25055682Smarkm char *txt; 25172445Sassar struct key_record *key; 25272445Sassar struct cert_record *cert; 25372445Sassar struct sig_record *sig; 254178825Sdfr struct sshfp_record *sshfp; 255178825Sdfr struct ds_record *ds; 25655682Smarkm }u; 25755682Smarkm struct resource_record *next; 25855682Smarkm}; 25955682Smarkm 260178825Sdfr#define rk_DNS_MAX_PACKET_SIZE 0xffff 26155682Smarkm 262178825Sdfrstruct dns_header { 263178825Sdfr unsigned id; 264178825Sdfr unsigned flags; 265178825Sdfr#define rk_DNS_HEADER_RESPONSE_FLAG 1 266178825Sdfr#define rk_DNS_HEADER_AUTHORITIVE_ANSWER 2 267178825Sdfr#define rk_DNS_HEADER_TRUNCATED_MESSAGE 4 268178825Sdfr#define rk_DNS_HEADER_RECURSION_DESIRED 8 269178825Sdfr#define rk_DNS_HEADER_RECURSION_AVAILABLE 16 270178825Sdfr#define rk_DNS_HEADER_AUTHENTIC_DATA 32 271178825Sdfr#define rk_DNS_HEADER_CHECKING_DISABLED 64 272178825Sdfr unsigned opcode; 273178825Sdfr unsigned response_code; 274178825Sdfr unsigned qdcount; 275178825Sdfr unsigned ancount; 276178825Sdfr unsigned nscount; 277178825Sdfr unsigned arcount; 278178825Sdfr}; 279178825Sdfr 28055682Smarkmstruct dns_reply{ 281178825Sdfr struct dns_header h; 28255682Smarkm struct dns_query q; 28355682Smarkm struct resource_record *head; 28455682Smarkm}; 28555682Smarkm 28655682Smarkm 287178825Sdfrstruct dns_reply* ROKEN_LIB_FUNCTION 288178825Sdfr dns_lookup(const char *, const char *); 289178825Sdfrvoid ROKEN_LIB_FUNCTION 290178825Sdfr dns_free_data(struct dns_reply *); 291178825Sdfrint ROKEN_LIB_FUNCTION 292178825Sdfr dns_string_to_type(const char *name); 293178825Sdfrconst char *ROKEN_LIB_FUNCTION 294178825Sdfr dns_type_to_string(int type); 295178825Sdfrvoid ROKEN_LIB_FUNCTION 296178825Sdfr dns_srv_order(struct dns_reply*); 29755682Smarkm 29855682Smarkm#endif /* __RESOLVE_H__ */ 299