1 /* $NetBSD: nameser.h,v 1.19 2005/12/26 19:01:47 perry Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 34 * Copyright (c) 1996-1999 by Internet Software Consortium. 35 * 36 * Permission to use, copy, modify, and distribute this software for any 37 * purpose with or without fee is hereby granted, provided that the above 38 * copyright notice and this permission notice appear in all copies. 39 * 40 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 41 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 42 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 43 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 44 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 45 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 46 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 47 */ 48 49 /* 50 * Id: nameser.h,v 1.2.2.4.4.1 2004/03/09 08:33:30 marka Exp 51 */ 52 53 #ifndef _ARPA_NAMESER_H_ 54 #define _ARPA_NAMESER_H_ 55 56 #define BIND_4_COMPAT 57 58 #include <sys/types.h> 59 #include <sys/cdefs.h> 60 61 /* 62 * Revision information. This is the release date in YYYYMMDD format. 63 * It can change every day so the right thing to do with it is use it 64 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not 65 * compare for equality; rather, use it to determine whether your libbind.a 66 * contains a new enough lib/nameser/ to support the feature you need. 67 */ 68 69 #define __NAMESER 19991006 /* New interface version stamp. */ 70 71 /* 72 * Define constants based on RFC 883, RFC 1034, RFC 1035 73 */ 74 #define NS_PACKETSZ 512 /* default UDP packet size */ 75 #define NS_MAXDNAME 1025 /* maximum domain name */ 76 #define NS_MAXMSG 65535 /* maximum message size */ 77 #define NS_MAXCDNAME 255 /* maximum compressed domain name */ 78 #define NS_MAXLABEL 63 /* maximum length of domain label */ 79 #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */ 80 #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */ 81 #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ 82 #define NS_INT32SZ 4 /* #/bytes of data in a uint32_t */ 83 #define NS_INT16SZ 2 /* #/bytes of data in a uint16_t */ 84 #define NS_INT8SZ 1 /* #/bytes of data in a uint8_t */ 85 #define NS_INADDRSZ 4 /* IPv4 T_A */ 86 #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */ 87 #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */ 88 #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */ 89 90 /* 91 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord() 92 * in synch with it. 93 */ 94 typedef enum __ns_sect { 95 ns_s_qd = 0, /* Query: Question. */ 96 ns_s_zn = 0, /* Update: Zone. */ 97 ns_s_an = 1, /* Query: Answer. */ 98 ns_s_pr = 1, /* Update: Prerequisites. */ 99 ns_s_ns = 2, /* Query: Name servers. */ 100 ns_s_ud = 2, /* Update: Update. */ 101 ns_s_ar = 3, /* Query|Update: Additional records. */ 102 ns_s_max = 4 103 } ns_sect; 104 105 /* 106 * This is a message handle. It is caller allocated and has no dynamic data. 107 * This structure is intended to be opaque to all but ns_parse.c, thus the 108 * leading _'s on the member names. Use the accessor functions, not the _'s. 109 */ 110 typedef struct __ns_msg { 111 const u_char *_msg, *_eom; 112 uint16_t _id, _flags, _counts[ns_s_max]; 113 const u_char *_sections[ns_s_max]; 114 ns_sect _sect; 115 int _rrnum; 116 const u_char *_msg_ptr; 117 } ns_msg; 118 119 /* Private data structure - do not use from outside library. */ 120 struct _ns_flagdata { int mask, shift; }; 121 extern const struct _ns_flagdata _ns_flagdata[]; 122 123 /* Accessor macros - this is part of the public interface. */ 124 125 #define ns_msg_id(handle) ((handle)._id + 0) 126 #define ns_msg_base(handle) ((handle)._msg + 0) 127 #define ns_msg_end(handle) ((handle)._eom + 0) 128 #define ns_msg_size(handle) ((size_t)((handle)._eom - (handle)._msg)) 129 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0) 130 131 /* 132 * This is a parsed record. It is caller allocated and has no dynamic data. 133 */ 134 typedef struct __ns_rr { 135 char name[NS_MAXDNAME]; 136 uint16_t type; 137 uint16_t rr_class; 138 uint32_t ttl; 139 uint16_t rdlength; 140 const u_char * rdata; 141 } ns_rr; 142 143 /* Accessor macros - this is part of the public interface. */ 144 #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".") 145 #define ns_rr_type(rr) ((ns_type)((rr).type + 0)) 146 #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0)) 147 #define ns_rr_ttl(rr) ((u_long)(rr).ttl + 0) 148 #define ns_rr_rdlen(rr) ((size_t)(rr).rdlength + 0) 149 #define ns_rr_rdata(rr) ((rr).rdata + 0) 150 151 /* 152 * These don't have to be in the same order as in the packet flags word, 153 * and they can even overlap in some cases, but they will need to be kept 154 * in synch with ns_parse.c:ns_flagdata[]. 155 */ 156 typedef enum __ns_flag { 157 ns_f_qr, /* Question/Response. */ 158 ns_f_opcode, /* Operation code. */ 159 ns_f_aa, /* Authoritative Answer. */ 160 ns_f_tc, /* Truncation occurred. */ 161 ns_f_rd, /* Recursion Desired. */ 162 ns_f_ra, /* Recursion Available. */ 163 ns_f_z, /* MBZ. */ 164 ns_f_ad, /* Authentic Data (DNSSEC). */ 165 ns_f_cd, /* Checking Disabled (DNSSEC). */ 166 ns_f_rcode, /* Response code. */ 167 ns_f_max 168 } ns_flag; 169 170 /* 171 * Currently defined opcodes. 172 */ 173 typedef enum __ns_opcode { 174 ns_o_query = 0, /* Standard query. */ 175 ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */ 176 ns_o_status = 2, /* Name server status query (unsupported). */ 177 /* Opcode 3 is undefined/reserved. */ 178 ns_o_notify = 4, /* Zone change notification. */ 179 ns_o_update = 5, /* Zone update message. */ 180 ns_o_max = 6 181 } ns_opcode; 182 183 /* 184 * Currently defined response codes. 185 */ 186 typedef enum __ns_rcode { 187 ns_r_noerror = 0, /* No error occurred. */ 188 ns_r_formerr = 1, /* Format error. */ 189 ns_r_servfail = 2, /* Server failure. */ 190 ns_r_nxdomain = 3, /* Name error. */ 191 ns_r_notimpl = 4, /* Unimplemented. */ 192 ns_r_refused = 5, /* Operation refused. */ 193 /* these are for BIND_UPDATE */ 194 ns_r_yxdomain = 6, /* Name exists */ 195 ns_r_yxrrset = 7, /* RRset exists */ 196 ns_r_nxrrset = 8, /* RRset does not exist */ 197 ns_r_notauth = 9, /* Not authoritative for zone */ 198 ns_r_notzone = 10, /* Zone of record different from zone section */ 199 ns_r_max = 11, 200 /* The following are EDNS extended rcodes */ 201 ns_r_badvers = 16, 202 /* The following are TSIG errors */ 203 ns_r_badsig = 16, 204 ns_r_badkey = 17, 205 ns_r_badtime = 18 206 } ns_rcode; 207 208 /* BIND_UPDATE */ 209 typedef enum __ns_update_operation { 210 ns_uop_delete = 0, 211 ns_uop_add = 1, 212 ns_uop_max = 2 213 } ns_update_operation; 214 215 /* 216 * This structure is used for TSIG authenticated messages 217 */ 218 struct ns_tsig_key { 219 char name[NS_MAXDNAME], alg[NS_MAXDNAME]; 220 unsigned char *data; 221 int len; 222 }; 223 typedef struct ns_tsig_key ns_tsig_key; 224 225 /* 226 * This structure is used for TSIG authenticated TCP messages 227 */ 228 struct ns_tcp_tsig_state { 229 int counter; 230 struct dst_key *key; 231 void *ctx; 232 unsigned char sig[NS_PACKETSZ]; 233 int siglen; 234 }; 235 typedef struct ns_tcp_tsig_state ns_tcp_tsig_state; 236 237 #define NS_TSIG_FUDGE 300 238 #define NS_TSIG_TCP_COUNT 100 239 #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT" 240 241 #define NS_TSIG_ERROR_NO_TSIG -10 242 #define NS_TSIG_ERROR_NO_SPACE -11 243 #define NS_TSIG_ERROR_FORMERR -12 244 245 /* 246 * Currently defined type values for resources and queries. 247 */ 248 typedef enum __ns_type { 249 ns_t_invalid = 0, /* Cookie. */ 250 ns_t_a = 1, /* Host address. */ 251 ns_t_ns = 2, /* Authoritative server. */ 252 ns_t_md = 3, /* Mail destination. */ 253 ns_t_mf = 4, /* Mail forwarder. */ 254 ns_t_cname = 5, /* Canonical name. */ 255 ns_t_soa = 6, /* Start of authority zone. */ 256 ns_t_mb = 7, /* Mailbox domain name. */ 257 ns_t_mg = 8, /* Mail group member. */ 258 ns_t_mr = 9, /* Mail rename name. */ 259 ns_t_null = 10, /* Null resource record. */ 260 ns_t_wks = 11, /* Well known service. */ 261 ns_t_ptr = 12, /* Domain name pointer. */ 262 ns_t_hinfo = 13, /* Host information. */ 263 ns_t_minfo = 14, /* Mailbox information. */ 264 ns_t_mx = 15, /* Mail routing information. */ 265 ns_t_txt = 16, /* Text strings. */ 266 ns_t_rp = 17, /* Responsible person. */ 267 ns_t_afsdb = 18, /* AFS cell database. */ 268 ns_t_x25 = 19, /* X_25 calling address. */ 269 ns_t_isdn = 20, /* ISDN calling address. */ 270 ns_t_rt = 21, /* Router. */ 271 ns_t_nsap = 22, /* NSAP address. */ 272 ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ 273 ns_t_sig = 24, /* Security signature. */ 274 ns_t_key = 25, /* Security key. */ 275 ns_t_px = 26, /* X.400 mail mapping. */ 276 ns_t_gpos = 27, /* Geographical position (withdrawn). */ 277 ns_t_aaaa = 28, /* Ip6 Address. */ 278 ns_t_loc = 29, /* Location Information. */ 279 ns_t_nxt = 30, /* Next domain (security). */ 280 ns_t_eid = 31, /* Endpoint identifier. */ 281 ns_t_nimloc = 32, /* Nimrod Locator. */ 282 ns_t_srv = 33, /* Server Selection. */ 283 ns_t_atma = 34, /* ATM Address */ 284 ns_t_naptr = 35, /* Naming Authority PoinTeR */ 285 ns_t_kx = 36, /* Key Exchange */ 286 ns_t_cert = 37, /* Certification record */ 287 ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ 288 ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ 289 ns_t_sink = 40, /* Kitchen sink (experimentatl) */ 290 ns_t_opt = 41, /* EDNS0 option (meta-RR) */ 291 ns_t_apl = 42, /* Address prefix list (RFC 3123) */ 292 ns_t_tkey = 249, /* Transaction key */ 293 ns_t_tsig = 250, /* Transaction signature. */ 294 ns_t_ixfr = 251, /* Incremental zone transfer. */ 295 ns_t_axfr = 252, /* Transfer zone of authority. */ 296 ns_t_mailb = 253, /* Transfer mailbox records. */ 297 ns_t_maila = 254, /* Transfer mail agent records. */ 298 ns_t_any = 255, /* Wildcard match. */ 299 ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ 300 ns_t_max = 65536 301 } ns_type; 302 303 /* Exclusively a QTYPE? (not also an RTYPE) */ 304 #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \ 305 (t) == ns_t_mailb || (t) == ns_t_maila) 306 /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */ 307 #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt) 308 /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */ 309 #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t)) 310 #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr) 311 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \ 312 (t) == ns_t_zxfr) 313 314 /* 315 * Values for class field 316 */ 317 typedef enum __ns_class { 318 ns_c_invalid = 0, /* Cookie. */ 319 ns_c_in = 1, /* Internet. */ 320 ns_c_2 = 2, /* unallocated/unsupported. */ 321 ns_c_chaos = 3, /* MIT Chaos-net. */ 322 ns_c_hs = 4, /* MIT Hesiod. */ 323 /* Query class values which do not appear in resource records */ 324 ns_c_none = 254, /* for prereq. sections in update requests */ 325 ns_c_any = 255, /* Wildcard match. */ 326 ns_c_max = 65536 327 } ns_class; 328 329 /* DNSSEC constants. */ 330 331 typedef enum __ns_key_types { 332 ns_kt_rsa = 1, /* key type RSA/MD5 */ 333 ns_kt_dh = 2, /* Diffie Hellman */ 334 ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */ 335 ns_kt_private = 254 /* Private key type starts with OID */ 336 } ns_key_types; 337 338 typedef enum __ns_cert_types { 339 cert_t_pkix = 1, /* PKIX (X.509v3) */ 340 cert_t_spki = 2, /* SPKI */ 341 cert_t_pgp = 3, /* PGP */ 342 cert_t_url = 253, /* URL private type */ 343 cert_t_oid = 254 /* OID private type */ 344 } ns_cert_types; 345 346 /* Flags field of the KEY RR rdata. */ 347 #define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */ 348 #define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */ 349 #define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */ 350 #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */ 351 #define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */ 352 /* The type bits can also be interpreted independently, as single bits: */ 353 #define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */ 354 #define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */ 355 #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */ 356 #define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */ 357 #define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */ 358 #define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */ 359 #define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */ 360 #define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */ 361 #define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */ 362 #define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */ 363 #define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */ 364 #define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */ 365 #define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */ 366 #define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */ 367 #define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */ 368 #define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */ 369 #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \ 370 NS_KEY_RESERVED4 | \ 371 NS_KEY_RESERVED5 | \ 372 NS_KEY_RESERVED8 | \ 373 NS_KEY_RESERVED9 | \ 374 NS_KEY_RESERVED10 | \ 375 NS_KEY_RESERVED11 ) 376 #define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */ 377 378 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ 379 #define NS_ALG_MD5RSA 1 /* MD5 with RSA */ 380 #define NS_ALG_DH 2 /* Diffie Hellman KEY */ 381 #define NS_ALG_DSA 3 /* DSA KEY */ 382 #define NS_ALG_DSS NS_ALG_DSA 383 #define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */ 384 #define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */ 385 386 /* Protocol values */ 387 /* value 0 is reserved */ 388 #define NS_KEY_PROT_TLS 1 389 #define NS_KEY_PROT_EMAIL 2 390 #define NS_KEY_PROT_DNSSEC 3 391 #define NS_KEY_PROT_IPSEC 4 392 #define NS_KEY_PROT_ANY 255 393 394 /* Signatures */ 395 #define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */ 396 #define NS_MD5RSA_MAX_BITS 4096 397 /* Total of binary mod and exp */ 398 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3) 399 /* Max length of text sig block */ 400 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4) 401 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8) 402 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8) 403 404 #define NS_DSA_SIG_SIZE 41 405 #define NS_DSA_MIN_SIZE 213 406 #define NS_DSA_MAX_BYTES 405 407 408 /* Offsets into SIG record rdata to find various values */ 409 #define NS_SIG_TYPE 0 /* Type flags */ 410 #define NS_SIG_ALG 2 /* Algorithm */ 411 #define NS_SIG_LABELS 3 /* How many labels in name */ 412 #define NS_SIG_OTTL 4 /* Original TTL */ 413 #define NS_SIG_EXPIR 8 /* Expiration time */ 414 #define NS_SIG_SIGNED 12 /* Signature time */ 415 #define NS_SIG_FOOT 16 /* Key footprint */ 416 #define NS_SIG_SIGNER 18 /* Domain name of who signed it */ 417 418 /* How RR types are represented as bit-flags in NXT records */ 419 #define NS_NXT_BITS 8 420 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS))) 421 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS))) 422 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS))) 423 #define NS_NXT_MAX 127 424 425 /* 426 * EDNS0 extended flags, host order. 427 */ 428 #define NS_OPT_DNSSEC_OK 0x8000U 429 430 /* 431 * Inline versions of get/put short/long. Pointer is advanced. 432 */ 433 #define NS_GET16(s, cp) do { \ 434 const u_char *t_cp = (const u_char *)(cp); \ 435 (s) = ((uint16_t)t_cp[0] << 8) \ 436 | ((uint16_t)t_cp[1]) \ 437 ; \ 438 (cp) += NS_INT16SZ; \ 439 } while (/*CONSTCOND*/0) 440 441 #define NS_GET32(l, cp) do { \ 442 const u_char *t_cp = (const u_char *)(cp); \ 443 (l) = ((uint32_t)t_cp[0] << 24) \ 444 | ((uint32_t)t_cp[1] << 16) \ 445 | ((uint32_t)t_cp[2] << 8) \ 446 | ((uint32_t)t_cp[3]) \ 447 ; \ 448 (cp) += NS_INT32SZ; \ 449 } while (/*CONSTCOND*/0) 450 451 #define NS_PUT16(s, cp) do { \ 452 uint32_t t_s = (uint32_t)(s); \ 453 u_char *t_cp = (u_char *)(cp); \ 454 *t_cp++ = t_s >> 8; \ 455 *t_cp = t_s; \ 456 (cp) += NS_INT16SZ; \ 457 } while (/*CONSTCOND*/0) 458 459 #define NS_PUT32(l, cp) do { \ 460 uint32_t t_l = (uint32_t)(l); \ 461 u_char *t_cp = (u_char *)(cp); \ 462 *t_cp++ = t_l >> 24; \ 463 *t_cp++ = t_l >> 16; \ 464 *t_cp++ = t_l >> 8; \ 465 *t_cp = t_l; \ 466 (cp) += NS_INT32SZ; \ 467 } while (/*CONSTCOND*/0) 468 469 /* 470 * ANSI C identifier hiding for bind's lib/nameser. 471 */ 472 #define ns_msg_getflag __ns_msg_getflag 473 #define ns_get16 __ns_get16 474 #define ns_get32 __ns_get32 475 #define ns_put16 __ns_put16 476 #define ns_put32 __ns_put32 477 #define ns_initparse __ns_initparse 478 #define ns_skiprr __ns_skiprr 479 #define ns_parserr __ns_parserr 480 #define ns_sprintrr __ns_sprintrr 481 #define ns_sprintrrf __ns_sprintrrf 482 #define ns_format_ttl __ns_format_ttl 483 #define ns_parse_ttl __ns_parse_ttl 484 #define ns_datetosecs __ns_datetosecs 485 #define ns_name_ntol __ns_name_ntol 486 #define ns_name_ntop __ns_name_ntop 487 #define ns_name_pton __ns_name_pton 488 #define ns_name_unpack __ns_name_unpack 489 #define ns_name_pack __ns_name_pack 490 #define ns_name_compress __ns_name_compress 491 #define ns_name_uncompress __ns_name_uncompress 492 #define ns_name_skip __ns_name_skip 493 #define ns_name_rollback __ns_name_rollback 494 #define ns_sign __ns_sign 495 #define ns_sign2 __ns_sign2 496 #define ns_sign_tcp __ns_sign_tcp 497 #define ns_sign_tcp2 __ns_sign_tcp2 498 #define ns_sign_tcp_init __ns_sign_tcp_init 499 #define ns_find_tsig __ns_find_tsig 500 #define ns_verify __ns_verify 501 #define ns_verify_tcp __ns_verify_tcp 502 #define ns_verify_tcp_init __ns_verify_tcp_init 503 #define ns_samedomain __ns_samedomain 504 #define ns_subdomain __ns_subdomain 505 #define ns_makecanon __ns_makecanon 506 #define ns_samename __ns_samename 507 508 __BEGIN_DECLS 509 int ns_msg_getflag(ns_msg, int); 510 uint16_t ns_get16(const u_char *); 511 uint32_t ns_get32(const u_char *); 512 void ns_put16(uint16_t, u_char *); 513 void ns_put32(uint32_t, u_char *); 514 int ns_initparse(const u_char *, int, ns_msg *); 515 int ns_skiprr(const u_char *, const u_char *, ns_sect, int); 516 int ns_parserr(ns_msg *, ns_sect, int, ns_rr *); 517 int ns_sprintrr(const ns_msg *, const ns_rr *, 518 const char *, const char *, char *, size_t); 519 int ns_sprintrrf(const u_char *, size_t, const char *, 520 ns_class, ns_type, u_long, const u_char *, 521 size_t, const char *, const char *, 522 char *, size_t); 523 int ns_format_ttl(u_long, char *, size_t); 524 int ns_parse_ttl(const char *, u_long *); 525 uint32_t ns_datetosecs(const char *cp, int *errp); 526 int ns_name_ntol(const u_char *, u_char *, size_t); 527 int ns_name_ntop(const u_char *, char *, size_t); 528 int ns_name_pton(const char *, u_char *, size_t); 529 int ns_name_unpack(const u_char *, const u_char *, 530 const u_char *, u_char *, size_t); 531 int ns_name_pack(const u_char *, u_char *, int, 532 const u_char **, const u_char **); 533 int ns_name_uncompress(const u_char *, const u_char *, 534 const u_char *, char *, size_t); 535 int ns_name_compress(const char *, u_char *, size_t, 536 const u_char **, const u_char **); 537 int ns_name_skip(const u_char **, const u_char *); 538 void ns_name_rollback(const u_char *, const u_char **, 539 const u_char **); 540 int ns_sign(u_char *, int *, int, int, void *, 541 const u_char *, int, u_char *, int *, time_t); 542 int ns_sign2(u_char *, int *, int, int, void *, 543 const u_char *, int, u_char *, int *, time_t, 544 u_char **, u_char **); 545 int ns_sign_tcp(u_char *, int *, int, int, 546 ns_tcp_tsig_state *, int); 547 int ns_sign_tcp2(u_char *, int *, int, int, 548 ns_tcp_tsig_state *, int, 549 u_char **, u_char **); 550 int ns_sign_tcp_init(void *, const u_char *, int, 551 ns_tcp_tsig_state *); 552 u_char *ns_find_tsig(u_char *, u_char *); 553 int ns_verify(u_char *, int *, void *, 554 const u_char *, int, u_char *, int *, 555 time_t *, int); 556 int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int); 557 int ns_verify_tcp_init(void *, const u_char *, int, 558 ns_tcp_tsig_state *); 559 int ns_samedomain(const char *, const char *); 560 int ns_subdomain(const char *, const char *); 561 int ns_makecanon(const char *, char *, size_t); 562 int ns_samename(const char *, const char *); 563 __END_DECLS 564 565 #ifdef BIND_4_COMPAT 566 #include "arpa_nameser_compat.h" 567 #endif 568 569 #if 0 570 # include "libc_logging.h" 571 # define XLOG(...) __libc_format_log(ANDROID_LOG_DEBUG,"libc",__VA_ARGS__) 572 #else 573 #define XLOG(...) do {} while (0) 574 #endif 575 576 #endif /* !_ARPA_NAMESER_H_ */ 577
