155682Smarkm/* 2233294Sstas * Copyright (c) 1995 - 2002 Kungliga Tekniska H��gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 5233294Sstas * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 9233294Sstas * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 12233294Sstas * 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. 16233294Sstas * 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. 20233294Sstas * 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 34233294Sstas/* $Id$ */ 3555682Smarkm 3655682Smarkm#ifndef __RESOLVE_H__ 3755682Smarkm#define __RESOLVE_H__ 3855682Smarkm 39178825Sdfr#ifndef ROKEN_LIB_FUNCTION 40178825Sdfr#ifdef _WIN32 41233294Sstas#define ROKEN_LIB_FUNCTION 42233294Sstas#define ROKEN_LIB_CALL __cdecl 43178825Sdfr#else 44178825Sdfr#define ROKEN_LIB_FUNCTION 45233294Sstas#define ROKEN_LIB_CALL 46178825Sdfr#endif 47178825Sdfr#endif 48178825Sdfr 49233294Sstasenum { 50233294Sstas rk_ns_c_in = 1 51233294Sstas}; 52233294Sstas 53233294Sstasenum { 54178825Sdfr rk_ns_t_invalid = 0, /* Cookie. */ 55178825Sdfr rk_ns_t_a = 1, /* Host address. */ 56178825Sdfr rk_ns_t_ns = 2, /* Authoritative server. */ 57178825Sdfr rk_ns_t_md = 3, /* Mail destination. */ 58178825Sdfr rk_ns_t_mf = 4, /* Mail forwarder. */ 59178825Sdfr rk_ns_t_cname = 5, /* Canonical name. */ 60178825Sdfr rk_ns_t_soa = 6, /* Start of authority zone. */ 61178825Sdfr rk_ns_t_mb = 7, /* Mailbox domain name. */ 62178825Sdfr rk_ns_t_mg = 8, /* Mail group member. */ 63178825Sdfr rk_ns_t_mr = 9, /* Mail rename name. */ 64178825Sdfr rk_ns_t_null = 10, /* Null resource record. */ 65178825Sdfr rk_ns_t_wks = 11, /* Well known service. */ 66178825Sdfr rk_ns_t_ptr = 12, /* Domain name pointer. */ 67178825Sdfr rk_ns_t_hinfo = 13, /* Host information. */ 68178825Sdfr rk_ns_t_minfo = 14, /* Mailbox information. */ 69178825Sdfr rk_ns_t_mx = 15, /* Mail routing information. */ 70178825Sdfr rk_ns_t_txt = 16, /* Text strings. */ 71178825Sdfr rk_ns_t_rp = 17, /* Responsible person. */ 72178825Sdfr rk_ns_t_afsdb = 18, /* AFS cell database. */ 73178825Sdfr rk_ns_t_x25 = 19, /* X_25 calling address. */ 74178825Sdfr rk_ns_t_isdn = 20, /* ISDN calling address. */ 75178825Sdfr rk_ns_t_rt = 21, /* Router. */ 76178825Sdfr rk_ns_t_nsap = 22, /* NSAP address. */ 77178825Sdfr rk_ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ 78178825Sdfr rk_ns_t_sig = 24, /* Security signature. */ 79178825Sdfr rk_ns_t_key = 25, /* Security key. */ 80178825Sdfr rk_ns_t_px = 26, /* X.400 mail mapping. */ 81178825Sdfr rk_ns_t_gpos = 27, /* Geographical position (withdrawn). */ 82178825Sdfr rk_ns_t_aaaa = 28, /* Ip6 Address. */ 83178825Sdfr rk_ns_t_loc = 29, /* Location Information. */ 84178825Sdfr rk_ns_t_nxt = 30, /* Next domain (security). */ 85178825Sdfr rk_ns_t_eid = 31, /* Endpoint identifier. */ 86178825Sdfr rk_ns_t_nimloc = 32, /* Nimrod Locator. */ 87178825Sdfr rk_ns_t_srv = 33, /* Server Selection. */ 88178825Sdfr rk_ns_t_atma = 34, /* ATM Address */ 89178825Sdfr rk_ns_t_naptr = 35, /* Naming Authority PoinTeR */ 90178825Sdfr rk_ns_t_kx = 36, /* Key Exchange */ 91178825Sdfr rk_ns_t_cert = 37, /* Certification record */ 92178825Sdfr rk_ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ 93178825Sdfr rk_ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ 94178825Sdfr rk_ns_t_sink = 40, /* Kitchen sink (experimentatl) */ 95178825Sdfr rk_ns_t_opt = 41, /* EDNS0 option (meta-RR) */ 96178825Sdfr rk_ns_t_apl = 42, /* Address prefix list (RFC 3123) */ 97178825Sdfr rk_ns_t_ds = 43, /* Delegation Signer (RFC 3658) */ 98178825Sdfr rk_ns_t_sshfp = 44, /* SSH fingerprint */ 99178825Sdfr rk_ns_t_tkey = 249, /* Transaction key */ 100178825Sdfr rk_ns_t_tsig = 250, /* Transaction signature. */ 101178825Sdfr rk_ns_t_ixfr = 251, /* Incremental zone transfer. */ 102178825Sdfr rk_ns_t_axfr = 252, /* Transfer zone of authority. */ 103178825Sdfr rk_ns_t_mailb = 253, /* Transfer mailbox records. */ 104178825Sdfr rk_ns_t_maila = 254, /* Transfer mail agent records. */ 105178825Sdfr rk_ns_t_any = 255, /* Wildcard match. */ 106178825Sdfr rk_ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ 107178825Sdfr rk_ns_t_max = 65536 108233294Sstas}; 109178825Sdfr 110178825Sdfr#ifndef MAXDNAME 111178825Sdfr#define MAXDNAME 1025 112178825Sdfr#endif 113178825Sdfr 114102644Snectar#define mx_record rk_mx_record 115102644Snectar#define srv_record rk_srv_record 116102644Snectar#define key_record rk_key_record 117102644Snectar#define sig_record rk_sig_record 118102644Snectar#define cert_record rk_cert_record 119178825Sdfr#define sshfp_record rk_sshfp_record 120102644Snectar 121233294Sstasstruct rk_dns_query{ 12255682Smarkm char *domain; 12355682Smarkm unsigned type; 12455682Smarkm unsigned class; 12555682Smarkm}; 12655682Smarkm 127233294Sstasstruct rk_mx_record{ 12855682Smarkm unsigned preference; 12955682Smarkm char domain[1]; 13055682Smarkm}; 13155682Smarkm 132233294Sstasstruct rk_srv_record{ 13355682Smarkm unsigned priority; 13455682Smarkm unsigned weight; 13555682Smarkm unsigned port; 13655682Smarkm char target[1]; 13755682Smarkm}; 13855682Smarkm 139233294Sstasstruct rk_key_record { 14072445Sassar unsigned flags; 14172445Sassar unsigned protocol; 14272445Sassar unsigned algorithm; 14372445Sassar size_t key_len; 14472445Sassar u_char key_data[1]; 14572445Sassar}; 14672445Sassar 147233294Sstasstruct rk_sig_record { 14872445Sassar unsigned type; 14972445Sassar unsigned algorithm; 15072445Sassar unsigned labels; 15172445Sassar unsigned orig_ttl; 15272445Sassar unsigned sig_expiration; 15372445Sassar unsigned sig_inception; 15472445Sassar unsigned key_tag; 15572445Sassar char *signer; 156233294Sstas size_t sig_len; 15772445Sassar char sig_data[1]; /* also includes signer */ 15872445Sassar}; 15972445Sassar 160233294Sstasstruct rk_cert_record { 16172445Sassar unsigned type; 16272445Sassar unsigned tag; 16372445Sassar unsigned algorithm; 16472445Sassar size_t cert_len; 16572445Sassar u_char cert_data[1]; 16672445Sassar}; 16772445Sassar 168233294Sstasstruct rk_sshfp_record { 169178825Sdfr unsigned algorithm; 170178825Sdfr unsigned type; 171178825Sdfr size_t sshfp_len; 172178825Sdfr u_char sshfp_data[1]; 173178825Sdfr}; 174178825Sdfr 175233294Sstasstruct rk_ds_record { 176178825Sdfr unsigned key_tag; 177178825Sdfr unsigned algorithm; 178178825Sdfr unsigned digest_type; 179233294Sstas size_t digest_len; 180178825Sdfr u_char digest_data[1]; 181178825Sdfr}; 182178825Sdfr 183233294Sstasstruct rk_resource_record{ 18455682Smarkm char *domain; 18555682Smarkm unsigned type; 18655682Smarkm unsigned class; 18755682Smarkm unsigned ttl; 18855682Smarkm unsigned size; 18955682Smarkm union { 19055682Smarkm void *data; 191233294Sstas struct rk_mx_record *mx; 192233294Sstas struct rk_mx_record *afsdb; /* mx and afsdb are identical */ 193233294Sstas struct rk_srv_record *srv; 19455682Smarkm struct in_addr *a; 19555682Smarkm char *txt; 196233294Sstas struct rk_key_record *key; 197233294Sstas struct rk_cert_record *cert; 198233294Sstas struct rk_sig_record *sig; 199233294Sstas struct rk_sshfp_record *sshfp; 200233294Sstas struct rk_ds_record *ds; 20155682Smarkm }u; 202233294Sstas struct rk_resource_record *next; 20355682Smarkm}; 20455682Smarkm 205178825Sdfr#define rk_DNS_MAX_PACKET_SIZE 0xffff 20655682Smarkm 207233294Sstasstruct rk_dns_header { 208178825Sdfr unsigned id; 209178825Sdfr unsigned flags; 210178825Sdfr#define rk_DNS_HEADER_RESPONSE_FLAG 1 211178825Sdfr#define rk_DNS_HEADER_AUTHORITIVE_ANSWER 2 212178825Sdfr#define rk_DNS_HEADER_TRUNCATED_MESSAGE 4 213178825Sdfr#define rk_DNS_HEADER_RECURSION_DESIRED 8 214178825Sdfr#define rk_DNS_HEADER_RECURSION_AVAILABLE 16 215178825Sdfr#define rk_DNS_HEADER_AUTHENTIC_DATA 32 216178825Sdfr#define rk_DNS_HEADER_CHECKING_DISABLED 64 217178825Sdfr unsigned opcode; 218178825Sdfr unsigned response_code; 219178825Sdfr unsigned qdcount; 220178825Sdfr unsigned ancount; 221178825Sdfr unsigned nscount; 222178825Sdfr unsigned arcount; 223178825Sdfr}; 224178825Sdfr 225233294Sstasstruct rk_dns_reply{ 226233294Sstas struct rk_dns_header h; 227233294Sstas struct rk_dns_query q; 228233294Sstas struct rk_resource_record *head; 22955682Smarkm}; 23055682Smarkm 23155682Smarkm 232233294Sstas#ifdef __cplusplus 233233294Sstasextern "C" { 234233294Sstas#endif 23555682Smarkm 236233294SstasROKEN_LIB_FUNCTION struct rk_dns_reply* ROKEN_LIB_CALL 237233294Sstas rk_dns_lookup(const char *, const char *); 238233294SstasROKEN_LIB_FUNCTION void ROKEN_LIB_CALL 239233294Sstas rk_dns_free_data(struct rk_dns_reply *); 240233294SstasROKEN_LIB_FUNCTION int ROKEN_LIB_CALL 241233294Sstas rk_dns_string_to_type(const char *name); 242233294SstasROKEN_LIB_FUNCTION const char * ROKEN_LIB_CALL 243233294Sstas rk_dns_type_to_string(int type); 244233294SstasROKEN_LIB_FUNCTION void ROKEN_LIB_CALL 245233294Sstas rk_dns_srv_order(struct rk_dns_reply*); 246233294Sstas 247233294Sstas#ifdef __cplusplus 248233294Sstas} 249233294Sstas#endif 250233294Sstas 25155682Smarkm#endif /* __RESOLVE_H__ */ 252