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comparison: other-licenses/android/arpa_nameser.h
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| 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 /* | |
| 54 * This version of this file is derived from Android 2.3 "Gingerbread", | |
| 55 * which contains uncredited changes by Android/Google developers. It has | |
| 56 * been modified in 2011 for use in the Android build of Mozilla Firefox by | |
| 57 * Mozilla contributors (including Michael Edwards <m.k.edwards@gmail.com>, | |
| 58 * and Steve Workman <sjhworkman@gmail.com>). | |
| 59 * These changes are offered under the same license as the original NetBSD | |
| 60 * file, whose copyright and license are unchanged above. | |
| 61 */ | |
| 62 | |
| 63 #ifndef _ARPA_NAMESER_H_ | |
| 64 #define _ARPA_NAMESER_H_ | |
| 65 | |
| 66 #define BIND_4_COMPAT | |
| 67 | |
| 68 #include <sys/types.h> | |
| 69 #include <sys/cdefs.h> | |
| 70 | |
| 71 /* | |
| 72 * Revision information. This is the release date in YYYYMMDD format. | |
| 73 * It can change every day so the right thing to do with it is use it | |
| 74 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not | |
| 75 * compare for equality; rather, use it to determine whether your libbind.a | |
| 76 * contains a new enough lib/nameser/ to support the feature you need. | |
| 77 */ | |
| 78 | |
| 79 #define __NAMESER 19991006 /* New interface version stamp. */ | |
| 80 | |
| 81 /* | |
| 82 * Define constants based on RFC 883, RFC 1034, RFC 1035 | |
| 83 */ | |
| 84 #define NS_PACKETSZ 512 /* default UDP packet size */ | |
| 85 #define NS_MAXDNAME 1025 /* maximum domain name */ | |
| 86 #define NS_MAXMSG 65535 /* maximum message size */ | |
| 87 #define NS_MAXCDNAME 255 /* maximum compressed domain name */ | |
| 88 #define NS_MAXLABEL 63 /* maximum length of domain label */ | |
| 89 #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */ | |
| 90 #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */ | |
| 91 #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */ | |
| 92 #define NS_INT32SZ 4 /* #/bytes of data in a uint32_t */ | |
| 93 #define NS_INT16SZ 2 /* #/bytes of data in a uint16_t */ | |
| 94 #define NS_INT8SZ 1 /* #/bytes of data in a uint8_t */ | |
| 95 #define NS_INADDRSZ 4 /* IPv4 T_A */ | |
| 96 #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */ | |
| 97 #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */ | |
| 98 #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */ | |
| 99 | |
| 100 /* | |
| 101 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord() | |
| 102 * in synch with it. | |
| 103 */ | |
| 104 typedef enum __ns_sect { | |
| 105 ns_s_qd = 0, /* Query: Question. */ | |
| 106 ns_s_zn = 0, /* Update: Zone. */ | |
| 107 ns_s_an = 1, /* Query: Answer. */ | |
| 108 ns_s_pr = 1, /* Update: Prerequisites. */ | |
| 109 ns_s_ns = 2, /* Query: Name servers. */ | |
| 110 ns_s_ud = 2, /* Update: Update. */ | |
| 111 ns_s_ar = 3, /* Query|Update: Additional records. */ | |
| 112 ns_s_max = 4 | |
| 113 } ns_sect; | |
| 114 | |
| 115 /* | |
| 116 * This is a message handle. It is caller allocated and has no dynamic data. | |
| 117 * This structure is intended to be opaque to all but ns_parse.c, thus the | |
| 118 * leading _'s on the member names. Use the accessor functions, not the _'s. | |
| 119 */ | |
| 120 typedef struct __ns_msg { | |
| 121 const u_char *_msg, *_eom; | |
| 122 uint16_t _id, _flags, _counts[ns_s_max]; | |
| 123 const u_char *_sections[ns_s_max]; | |
| 124 ns_sect _sect; | |
| 125 int _rrnum; | |
| 126 const u_char *_msg_ptr; | |
| 127 } ns_msg; | |
| 128 | |
| 129 /* Private data structure - do not use from outside library. */ | |
| 130 struct _ns_flagdata { int mask, shift; }; | |
| 131 extern const struct _ns_flagdata _ns_flagdata[]; | |
| 132 | |
| 133 /* Accessor macros - this is part of the public interface. */ | |
| 134 | |
| 135 #define ns_msg_id(handle) ((handle)._id + 0) | |
| 136 #define ns_msg_base(handle) ((handle)._msg + 0) | |
| 137 #define ns_msg_end(handle) ((handle)._eom + 0) | |
| 138 #define ns_msg_size(handle) ((size_t)((handle)._eom - (handle)._msg)) | |
| 139 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0) | |
| 140 | |
| 141 /* | |
| 142 * This is a parsed record. It is caller allocated and has no dynamic data. | |
| 143 */ | |
| 144 typedef struct __ns_rr { | |
| 145 char name[NS_MAXDNAME]; | |
| 146 uint16_t type; | |
| 147 uint16_t rr_class; | |
| 148 uint32_t ttl; | |
| 149 uint16_t rdlength; | |
| 150 const u_char * rdata; | |
| 151 } ns_rr; | |
| 152 | |
| 153 /* Accessor macros - this is part of the public interface. */ | |
| 154 #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".") | |
| 155 #define ns_rr_type(rr) ((ns_type)((rr).type + 0)) | |
| 156 #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0)) | |
| 157 #define ns_rr_ttl(rr) ((u_long)(rr).ttl + 0) | |
| 158 #define ns_rr_rdlen(rr) ((size_t)(rr).rdlength + 0) | |
| 159 #define ns_rr_rdata(rr) ((rr).rdata + 0) | |
| 160 | |
| 161 /* | |
| 162 * These don't have to be in the same order as in the packet flags word, | |
| 163 * and they can even overlap in some cases, but they will need to be kept | |
| 164 * in synch with ns_parse.c:ns_flagdata[]. | |
| 165 */ | |
| 166 typedef enum __ns_flag { | |
| 167 ns_f_qr, /* Question/Response. */ | |
| 168 ns_f_opcode, /* Operation code. */ | |
| 169 ns_f_aa, /* Authoritative Answer. */ | |
| 170 ns_f_tc, /* Truncation occurred. */ | |
| 171 ns_f_rd, /* Recursion Desired. */ | |
| 172 ns_f_ra, /* Recursion Available. */ | |
| 173 ns_f_z, /* MBZ. */ | |
| 174 ns_f_ad, /* Authentic Data (DNSSEC). */ | |
| 175 ns_f_cd, /* Checking Disabled (DNSSEC). */ | |
| 176 ns_f_rcode, /* Response code. */ | |
| 177 ns_f_max | |
| 178 } ns_flag; | |
| 179 | |
| 180 /* | |
| 181 * Currently defined opcodes. | |
| 182 */ | |
| 183 typedef enum __ns_opcode { | |
| 184 ns_o_query = 0, /* Standard query. */ | |
| 185 ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */ | |
| 186 ns_o_status = 2, /* Name server status query (unsupported). */ | |
| 187 /* Opcode 3 is undefined/reserved. */ | |
| 188 ns_o_notify = 4, /* Zone change notification. */ | |
| 189 ns_o_update = 5, /* Zone update message. */ | |
| 190 ns_o_max = 6 | |
| 191 } ns_opcode; | |
| 192 | |
| 193 /* | |
| 194 * Currently defined response codes. | |
| 195 */ | |
| 196 typedef enum __ns_rcode { | |
| 197 ns_r_noerror = 0, /* No error occurred. */ | |
| 198 ns_r_formerr = 1, /* Format error. */ | |
| 199 ns_r_servfail = 2, /* Server failure. */ | |
| 200 ns_r_nxdomain = 3, /* Name error. */ | |
| 201 ns_r_notimpl = 4, /* Unimplemented. */ | |
| 202 ns_r_refused = 5, /* Operation refused. */ | |
| 203 /* these are for BIND_UPDATE */ | |
| 204 ns_r_yxdomain = 6, /* Name exists */ | |
| 205 ns_r_yxrrset = 7, /* RRset exists */ | |
| 206 ns_r_nxrrset = 8, /* RRset does not exist */ | |
| 207 ns_r_notauth = 9, /* Not authoritative for zone */ | |
| 208 ns_r_notzone = 10, /* Zone of record different from zone section */ | |
| 209 ns_r_max = 11, | |
| 210 /* The following are EDNS extended rcodes */ | |
| 211 ns_r_badvers = 16, | |
| 212 /* The following are TSIG errors */ | |
| 213 ns_r_badsig = 16, | |
| 214 ns_r_badkey = 17, | |
| 215 ns_r_badtime = 18 | |
| 216 } ns_rcode; | |
| 217 | |
| 218 /* BIND_UPDATE */ | |
| 219 typedef enum __ns_update_operation { | |
| 220 ns_uop_delete = 0, | |
| 221 ns_uop_add = 1, | |
| 222 ns_uop_max = 2 | |
| 223 } ns_update_operation; | |
| 224 | |
| 225 /* | |
| 226 * This structure is used for TSIG authenticated messages | |
| 227 */ | |
| 228 struct ns_tsig_key { | |
| 229 char name[NS_MAXDNAME], alg[NS_MAXDNAME]; | |
| 230 unsigned char *data; | |
| 231 int len; | |
| 232 }; | |
| 233 typedef struct ns_tsig_key ns_tsig_key; | |
| 234 | |
| 235 /* | |
| 236 * This structure is used for TSIG authenticated TCP messages | |
| 237 */ | |
| 238 struct ns_tcp_tsig_state { | |
| 239 int counter; | |
| 240 struct dst_key *key; | |
| 241 void *ctx; | |
| 242 unsigned char sig[NS_PACKETSZ]; | |
| 243 int siglen; | |
| 244 }; | |
| 245 typedef struct ns_tcp_tsig_state ns_tcp_tsig_state; | |
| 246 | |
| 247 #define NS_TSIG_FUDGE 300 | |
| 248 #define NS_TSIG_TCP_COUNT 100 | |
| 249 #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT" | |
| 250 | |
| 251 #define NS_TSIG_ERROR_NO_TSIG -10 | |
| 252 #define NS_TSIG_ERROR_NO_SPACE -11 | |
| 253 #define NS_TSIG_ERROR_FORMERR -12 | |
| 254 | |
| 255 /* | |
| 256 * Currently defined type values for resources and queries. | |
| 257 */ | |
| 258 typedef enum __ns_type { | |
| 259 ns_t_invalid = 0, /* Cookie. */ | |
| 260 ns_t_a = 1, /* Host address. */ | |
| 261 ns_t_ns = 2, /* Authoritative server. */ | |
| 262 ns_t_md = 3, /* Mail destination. */ | |
| 263 ns_t_mf = 4, /* Mail forwarder. */ | |
| 264 ns_t_cname = 5, /* Canonical name. */ | |
| 265 ns_t_soa = 6, /* Start of authority zone. */ | |
| 266 ns_t_mb = 7, /* Mailbox domain name. */ | |
| 267 ns_t_mg = 8, /* Mail group member. */ | |
| 268 ns_t_mr = 9, /* Mail rename name. */ | |
| 269 ns_t_null = 10, /* Null resource record. */ | |
| 270 ns_t_wks = 11, /* Well known service. */ | |
| 271 ns_t_ptr = 12, /* Domain name pointer. */ | |
| 272 ns_t_hinfo = 13, /* Host information. */ | |
| 273 ns_t_minfo = 14, /* Mailbox information. */ | |
| 274 ns_t_mx = 15, /* Mail routing information. */ | |
| 275 ns_t_txt = 16, /* Text strings. */ | |
| 276 ns_t_rp = 17, /* Responsible person. */ | |
| 277 ns_t_afsdb = 18, /* AFS cell database. */ | |
| 278 ns_t_x25 = 19, /* X_25 calling address. */ | |
| 279 ns_t_isdn = 20, /* ISDN calling address. */ | |
| 280 ns_t_rt = 21, /* Router. */ | |
| 281 ns_t_nsap = 22, /* NSAP address. */ | |
| 282 ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */ | |
| 283 ns_t_sig = 24, /* Security signature. */ | |
| 284 ns_t_key = 25, /* Security key. */ | |
| 285 ns_t_px = 26, /* X.400 mail mapping. */ | |
| 286 ns_t_gpos = 27, /* Geographical position (withdrawn). */ | |
| 287 ns_t_aaaa = 28, /* Ip6 Address. */ | |
| 288 ns_t_loc = 29, /* Location Information. */ | |
| 289 ns_t_nxt = 30, /* Next domain (security). */ | |
| 290 ns_t_eid = 31, /* Endpoint identifier. */ | |
| 291 ns_t_nimloc = 32, /* Nimrod Locator. */ | |
| 292 ns_t_srv = 33, /* Server Selection. */ | |
| 293 ns_t_atma = 34, /* ATM Address */ | |
| 294 ns_t_naptr = 35, /* Naming Authority PoinTeR */ | |
| 295 ns_t_kx = 36, /* Key Exchange */ | |
| 296 ns_t_cert = 37, /* Certification record */ | |
| 297 ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */ | |
| 298 ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */ | |
| 299 ns_t_sink = 40, /* Kitchen sink (experimentatl) */ | |
| 300 ns_t_opt = 41, /* EDNS0 option (meta-RR) */ | |
| 301 ns_t_apl = 42, /* Address prefix list (RFC 3123) */ | |
| 302 ns_t_tkey = 249, /* Transaction key */ | |
| 303 ns_t_tsig = 250, /* Transaction signature. */ | |
| 304 ns_t_ixfr = 251, /* Incremental zone transfer. */ | |
| 305 ns_t_axfr = 252, /* Transfer zone of authority. */ | |
| 306 ns_t_mailb = 253, /* Transfer mailbox records. */ | |
| 307 ns_t_maila = 254, /* Transfer mail agent records. */ | |
| 308 ns_t_any = 255, /* Wildcard match. */ | |
| 309 ns_t_zxfr = 256, /* BIND-specific, nonstandard. */ | |
| 310 ns_t_max = 65536 | |
| 311 } ns_type; | |
| 312 | |
| 313 /* Exclusively a QTYPE? (not also an RTYPE) */ | |
| 314 #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \ | |
| 315 (t) == ns_t_mailb || (t) == ns_t_maila) | |
| 316 /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */ | |
| 317 #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt) | |
| 318 /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */ | |
| 319 #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t)) | |
| 320 #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr) | |
| 321 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \ | |
| 322 (t) == ns_t_zxfr) | |
| 323 | |
| 324 /* | |
| 325 * Values for class field | |
| 326 */ | |
| 327 typedef enum __ns_class { | |
| 328 ns_c_invalid = 0, /* Cookie. */ | |
| 329 ns_c_in = 1, /* Internet. */ | |
| 330 ns_c_2 = 2, /* unallocated/unsupported. */ | |
| 331 ns_c_chaos = 3, /* MIT Chaos-net. */ | |
| 332 ns_c_hs = 4, /* MIT Hesiod. */ | |
| 333 /* Query class values which do not appear in resource records */ | |
| 334 ns_c_none = 254, /* for prereq. sections in update requests */ | |
| 335 ns_c_any = 255, /* Wildcard match. */ | |
| 336 ns_c_max = 65536 | |
| 337 } ns_class; | |
| 338 | |
| 339 /* DNSSEC constants. */ | |
| 340 | |
| 341 typedef enum __ns_key_types { | |
| 342 ns_kt_rsa = 1, /* key type RSA/MD5 */ | |
| 343 ns_kt_dh = 2, /* Diffie Hellman */ | |
| 344 ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */ | |
| 345 ns_kt_private = 254 /* Private key type starts with OID */ | |
| 346 } ns_key_types; | |
| 347 | |
| 348 typedef enum __ns_cert_types { | |
| 349 cert_t_pkix = 1, /* PKIX (X.509v3) */ | |
| 350 cert_t_spki = 2, /* SPKI */ | |
| 351 cert_t_pgp = 3, /* PGP */ | |
| 352 cert_t_url = 253, /* URL private type */ | |
| 353 cert_t_oid = 254 /* OID private type */ | |
| 354 } ns_cert_types; | |
| 355 | |
| 356 /* Flags field of the KEY RR rdata. */ | |
| 357 #define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */ | |
| 358 #define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */ | |
| 359 #define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */ | |
| 360 #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */ | |
| 361 #define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */ | |
| 362 /* The type bits can also be interpreted independently, as single bits: */ | |
| 363 #define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */ | |
| 364 #define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */ | |
| 365 #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */ | |
| 366 #define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */ | |
| 367 #define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */ | |
| 368 #define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */ | |
| 369 #define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */ | |
| 370 #define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */ | |
| 371 #define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */ | |
| 372 #define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */ | |
| 373 #define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */ | |
| 374 #define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */ | |
| 375 #define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */ | |
| 376 #define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */ | |
| 377 #define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */ | |
| 378 #define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */ | |
| 379 #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \ | |
| 380 NS_KEY_RESERVED4 | \ | |
| 381 NS_KEY_RESERVED5 | \ | |
| 382 NS_KEY_RESERVED8 | \ | |
| 383 NS_KEY_RESERVED9 | \ | |
| 384 NS_KEY_RESERVED10 | \ | |
| 385 NS_KEY_RESERVED11 ) | |
| 386 #define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */ | |
| 387 | |
| 388 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */ | |
| 389 #define NS_ALG_MD5RSA 1 /* MD5 with RSA */ | |
| 390 #define NS_ALG_DH 2 /* Diffie Hellman KEY */ | |
| 391 #define NS_ALG_DSA 3 /* DSA KEY */ | |
| 392 #define NS_ALG_DSS NS_ALG_DSA | |
| 393 #define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */ | |
| 394 #define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */ | |
| 395 | |
| 396 /* Protocol values */ | |
| 397 /* value 0 is reserved */ | |
| 398 #define NS_KEY_PROT_TLS 1 | |
| 399 #define NS_KEY_PROT_EMAIL 2 | |
| 400 #define NS_KEY_PROT_DNSSEC 3 | |
| 401 #define NS_KEY_PROT_IPSEC 4 | |
| 402 #define NS_KEY_PROT_ANY 255 | |
| 403 | |
| 404 /* Signatures */ | |
| 405 #define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */ | |
| 406 #define NS_MD5RSA_MAX_BITS 4096 | |
| 407 /* Total of binary mod and exp */ | |
| 408 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3) | |
| 409 /* Max length of text sig block */ | |
| 410 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4) | |
| 411 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8) | |
| 412 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8) | |
| 413 | |
| 414 #define NS_DSA_SIG_SIZE 41 | |
| 415 #define NS_DSA_MIN_SIZE 213 | |
| 416 #define NS_DSA_MAX_BYTES 405 | |
| 417 | |
| 418 /* Offsets into SIG record rdata to find various values */ | |
| 419 #define NS_SIG_TYPE 0 /* Type flags */ | |
| 420 #define NS_SIG_ALG 2 /* Algorithm */ | |
| 421 #define NS_SIG_LABELS 3 /* How many labels in name */ | |
| 422 #define NS_SIG_OTTL 4 /* Original TTL */ | |
| 423 #define NS_SIG_EXPIR 8 /* Expiration time */ | |
| 424 #define NS_SIG_SIGNED 12 /* Signature time */ | |
| 425 #define NS_SIG_FOOT 16 /* Key footprint */ | |
| 426 #define NS_SIG_SIGNER 18 /* Domain name of who signed it */ | |
| 427 | |
| 428 /* How RR types are represented as bit-flags in NXT records */ | |
| 429 #define NS_NXT_BITS 8 | |
| 430 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS))) | |
| 431 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS))) | |
| 432 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS))) | |
| 433 #define NS_NXT_MAX 127 | |
| 434 | |
| 435 /* | |
| 436 * EDNS0 extended flags, host order. | |
| 437 */ | |
| 438 #define NS_OPT_DNSSEC_OK 0x8000U | |
| 439 | |
| 440 /* | |
| 441 * Inline versions of get/put short/long. Pointer is advanced. | |
| 442 */ | |
| 443 #define NS_GET16(s, cp) do { \ | |
| 444 const u_char *t_cp = (const u_char *)(cp); \ | |
| 445 (s) = ((uint16_t)t_cp[0] << 8) \ | |
| 446 | ((uint16_t)t_cp[1]) \ | |
| 447 ; \ | |
| 448 (cp) += NS_INT16SZ; \ | |
| 449 } while (/*CONSTCOND*/0) | |
| 450 | |
| 451 #define NS_GET32(l, cp) do { \ | |
| 452 const u_char *t_cp = (const u_char *)(cp); \ | |
| 453 (l) = ((uint32_t)t_cp[0] << 24) \ | |
| 454 | ((uint32_t)t_cp[1] << 16) \ | |
| 455 | ((uint32_t)t_cp[2] << 8) \ | |
| 456 | ((uint32_t)t_cp[3]) \ | |
| 457 ; \ | |
| 458 (cp) += NS_INT32SZ; \ | |
| 459 } while (/*CONSTCOND*/0) | |
| 460 | |
| 461 #define NS_PUT16(s, cp) do { \ | |
| 462 uint32_t t_s = (uint32_t)(s); \ | |
| 463 u_char *t_cp = (u_char *)(cp); \ | |
| 464 *t_cp++ = t_s >> 8; \ | |
| 465 *t_cp = t_s; \ | |
| 466 (cp) += NS_INT16SZ; \ | |
| 467 } while (/*CONSTCOND*/0) | |
| 468 | |
| 469 #define NS_PUT32(l, cp) do { \ | |
| 470 uint32_t t_l = (uint32_t)(l); \ | |
| 471 u_char *t_cp = (u_char *)(cp); \ | |
| 472 *t_cp++ = t_l >> 24; \ | |
| 473 *t_cp++ = t_l >> 16; \ | |
| 474 *t_cp++ = t_l >> 8; \ | |
| 475 *t_cp = t_l; \ | |
| 476 (cp) += NS_INT32SZ; \ | |
| 477 } while (/*CONSTCOND*/0) | |
| 478 | |
| 479 /* | |
| 480 * ANSI C identifier hiding for bind's lib/nameser. | |
| 481 */ | |
| 482 #define ns_msg_getflag __ns_msg_getflag | |
| 483 #define ns_get16 __ns_get16 | |
| 484 #define ns_get32 __ns_get32 | |
| 485 #define ns_put16 __ns_put16 | |
| 486 #define ns_put32 __ns_put32 | |
| 487 #define ns_initparse __ns_initparse | |
| 488 #define ns_skiprr __ns_skiprr | |
| 489 #define ns_parserr __ns_parserr | |
| 490 #define ns_sprintrr __ns_sprintrr | |
| 491 #define ns_sprintrrf __ns_sprintrrf | |
| 492 #define ns_format_ttl __ns_format_ttl | |
| 493 #define ns_parse_ttl __ns_parse_ttl | |
| 494 #define ns_datetosecs __ns_datetosecs | |
| 495 #define ns_name_ntol __ns_name_ntol | |
| 496 #define ns_name_ntop __ns_name_ntop | |
| 497 #define ns_name_pton __ns_name_pton | |
| 498 #define ns_name_unpack __ns_name_unpack | |
| 499 #define ns_name_pack __ns_name_pack | |
| 500 #define ns_name_compress __ns_name_compress | |
| 501 #define ns_name_uncompress __ns_name_uncompress | |
| 502 #define ns_name_skip __ns_name_skip | |
| 503 #define ns_name_rollback __ns_name_rollback | |
| 504 #define ns_sign __ns_sign | |
| 505 #define ns_sign2 __ns_sign2 | |
| 506 #define ns_sign_tcp __ns_sign_tcp | |
| 507 #define ns_sign_tcp2 __ns_sign_tcp2 | |
| 508 #define ns_sign_tcp_init __ns_sign_tcp_init | |
| 509 #define ns_find_tsig __ns_find_tsig | |
| 510 #define ns_verify __ns_verify | |
| 511 #define ns_verify_tcp __ns_verify_tcp | |
| 512 #define ns_verify_tcp_init __ns_verify_tcp_init | |
| 513 #define ns_samedomain __ns_samedomain | |
| 514 #define ns_subdomain __ns_subdomain | |
| 515 #define ns_makecanon __ns_makecanon | |
| 516 #define ns_samename __ns_samename | |
| 517 | |
| 518 __BEGIN_DECLS | |
| 519 int ns_msg_getflag(ns_msg, int); | |
| 520 uint16_t ns_get16(const u_char *); | |
| 521 uint32_t ns_get32(const u_char *); | |
| 522 void ns_put16(uint16_t, u_char *); | |
| 523 void ns_put32(uint32_t, u_char *); | |
| 524 int ns_initparse(const u_char *, int, ns_msg *); | |
| 525 int ns_skiprr(const u_char *, const u_char *, ns_sect, int); | |
| 526 int ns_parserr(ns_msg *, ns_sect, int, ns_rr *); | |
| 527 int ns_sprintrr(const ns_msg *, const ns_rr *, | |
| 528 const char *, const char *, char *, size_t); | |
| 529 int ns_sprintrrf(const u_char *, size_t, const char *, | |
| 530 ns_class, ns_type, u_long, const u_char *, | |
| 531 size_t, const char *, const char *, | |
| 532 char *, size_t); | |
| 533 int ns_format_ttl(u_long, char *, size_t); | |
| 534 int ns_parse_ttl(const char *, u_long *); | |
| 535 uint32_t ns_datetosecs(const char *cp, int *errp); | |
| 536 int ns_name_ntol(const u_char *, u_char *, size_t); | |
| 537 int ns_name_ntop(const u_char *, char *, size_t); | |
| 538 int ns_name_pton(const char *, u_char *, size_t); | |
| 539 int ns_name_unpack(const u_char *, const u_char *, | |
| 540 const u_char *, u_char *, size_t); | |
| 541 int ns_name_pack(const u_char *, u_char *, int, | |
| 542 const u_char **, const u_char **); | |
| 543 int ns_name_uncompress(const u_char *, const u_char *, | |
| 544 const u_char *, char *, size_t); | |
| 545 int ns_name_compress(const char *, u_char *, size_t, | |
| 546 const u_char **, const u_char **); | |
| 547 int ns_name_skip(const u_char **, const u_char *); | |
| 548 void ns_name_rollback(const u_char *, const u_char **, | |
| 549 const u_char **); | |
| 550 int ns_sign(u_char *, int *, int, int, void *, | |
| 551 const u_char *, int, u_char *, int *, time_t); | |
| 552 int ns_sign2(u_char *, int *, int, int, void *, | |
| 553 const u_char *, int, u_char *, int *, time_t, | |
| 554 u_char **, u_char **); | |
| 555 int ns_sign_tcp(u_char *, int *, int, int, | |
| 556 ns_tcp_tsig_state *, int); | |
| 557 int ns_sign_tcp2(u_char *, int *, int, int, | |
| 558 ns_tcp_tsig_state *, int, | |
| 559 u_char **, u_char **); | |
| 560 int ns_sign_tcp_init(void *, const u_char *, int, | |
| 561 ns_tcp_tsig_state *); | |
| 562 u_char *ns_find_tsig(u_char *, u_char *); | |
| 563 int ns_verify(u_char *, int *, void *, | |
| 564 const u_char *, int, u_char *, int *, | |
| 565 time_t *, int); | |
| 566 int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int); | |
| 567 int ns_verify_tcp_init(void *, const u_char *, int, | |
| 568 ns_tcp_tsig_state *); | |
| 569 int ns_samedomain(const char *, const char *); | |
| 570 int ns_subdomain(const char *, const char *); | |
| 571 int ns_makecanon(const char *, char *, size_t); | |
| 572 int ns_samename(const char *, const char *); | |
| 573 __END_DECLS | |
| 574 | |
| 575 #ifdef BIND_4_COMPAT | |
| 576 #include "arpa_nameser_compat.h" | |
| 577 #endif | |
| 578 | |
| 579 #if 0 | |
| 580 # include <logd.h> | |
| 581 # define XLOG(...) \ | |
| 582 __libc_android_log_print(ANDROID_LOG_DEBUG,"libc",__VA_ARGS__) | |
| 583 #else | |
| 584 #define XLOG(...) do {} while (0) | |
| 585 #endif | |
| 586 | |
| 587 #endif /* !_ARPA_NAMESER_H_ */ |
