contrib/bind9/lib/dns/rdata/generic/tkey_249.c

   1 /*
   2  * Copyright (C) 2004, 2007, 2009, 2011, 2012, 2014, 2015  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2003  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id$ */
  19
  20 /*
  21  * Reviewed: Thu Mar 16 17:35:30 PST 2000 by halley.
  22  */
  23
  24 /* draft-ietf-dnsext-tkey-01.txt */
  25
  26 #ifndef RDATA_GENERIC_TKEY_249_C
  27 #define RDATA_GENERIC_TKEY_249_C
  28
  29 #define RRTYPE_TKEY_ATTRIBUTES (DNS_RDATATYPEATTR_META)
  30
  31 static inline isc_result_t
  32 fromtext_tkey(ARGS_FROMTEXT) {
  33         isc_token_t token;
  34         dns_rcode_t rcode;
  35         dns_name_t name;
  36         isc_buffer_t buffer;
  37         long i;
  38         char *e;
  39
  40         REQUIRE(type == dns_rdatatype_tkey);
  41
  42         UNUSED(type);
  43         UNUSED(rdclass);
  44         UNUSED(callbacks);
  45
  46         /*
  47          * Algorithm.
  48          */
  49         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  50                                       ISC_FALSE));
  51         dns_name_init(&name, NULL);
  52         buffer_fromregion(&buffer, &token.value.as_region);
  53         origin = (origin != NULL) ? origin : dns_rootname;
  54         RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target));
  55
  56
  57         /*
  58          * Inception.
  59          */
  60         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  61                                       ISC_FALSE));
  62         RETERR(uint32_tobuffer(token.value.as_ulong, target));
  63
  64         /*
  65          * Expiration.
  66          */
  67         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  68                                       ISC_FALSE));
  69         RETERR(uint32_tobuffer(token.value.as_ulong, target));
  70
  71         /*
  72          * Mode.
  73          */
  74         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  75                                       ISC_FALSE));
  76         if (token.value.as_ulong > 0xffffU)
  77                 RETTOK(ISC_R_RANGE);
  78         RETERR(uint16_tobuffer(token.value.as_ulong, target));
  79
  80         /*
  81          * Error.
  82          */
  83         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
  84                                       ISC_FALSE));
  85         if (dns_tsigrcode_fromtext(&rcode, &token.value.as_textregion)
  86                                 != ISC_R_SUCCESS)
  87         {
  88                 i = strtol(DNS_AS_STR(token), &e, 10);
  89                 if (*e != 0)
  90                         RETTOK(DNS_R_UNKNOWN);
  91                 if (i < 0 || i > 0xffff)
  92                         RETTOK(ISC_R_RANGE);
  93                 rcode = (dns_rcode_t)i;
  94         }
  95         RETERR(uint16_tobuffer(rcode, target));
  96
  97         /*
  98          * Key Size.
  99          */
 100         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
 101                                       ISC_FALSE));
 102         if (token.value.as_ulong > 0xffffU)
 103                 RETTOK(ISC_R_RANGE);
 104         RETERR(uint16_tobuffer(token.value.as_ulong, target));
 105
 106         /*
 107          * Key Data.
 108          */
 109         RETERR(isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
 110
 111         /*
 112          * Other Size.
 113          */
 114         RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
 115                                       ISC_FALSE));
 116         if (token.value.as_ulong > 0xffffU)
 117                 RETTOK(ISC_R_RANGE);
 118         RETERR(uint16_tobuffer(token.value.as_ulong, target));
 119
 120         /*
 121          * Other Data.
 122          */
 123         return (isc_base64_tobuffer(lexer, target, (int)token.value.as_ulong));
 124 }
 125
 126 static inline isc_result_t
 127 totext_tkey(ARGS_TOTEXT) {
 128         isc_region_t sr, dr;
 129         char buf[sizeof("4294967295 ")];
 130         unsigned long n;
 131         dns_name_t name;
 132         dns_name_t prefix;
 133         isc_boolean_t sub;
 134
 135         REQUIRE(rdata->type == dns_rdatatype_tkey);
 136         REQUIRE(rdata->length != 0);
 137
 138         dns_rdata_toregion(rdata, &sr);
 139
 140         /*
 141          * Algorithm.
 142          */
 143         dns_name_init(&name, NULL);
 144         dns_name_init(&prefix, NULL);
 145         dns_name_fromregion(&name, &sr);
 146         sub = name_prefix(&name, tctx->origin, &prefix);
 147         RETERR(dns_name_totext(&prefix, sub, target));
 148         RETERR(str_totext(" ", target));
 149         isc_region_consume(&sr, name_length(&name));
 150
 151         /*
 152          * Inception.
 153          */
 154         n = uint32_fromregion(&sr);
 155         isc_region_consume(&sr, 4);
 156         sprintf(buf, "%lu ", n);
 157         RETERR(str_totext(buf, target));
 158
 159         /*
 160          * Expiration.
 161          */
 162         n = uint32_fromregion(&sr);
 163         isc_region_consume(&sr, 4);
 164         sprintf(buf, "%lu ", n);
 165         RETERR(str_totext(buf, target));
 166
 167         /*
 168          * Mode.
 169          */
 170         n = uint16_fromregion(&sr);
 171         isc_region_consume(&sr, 2);
 172         sprintf(buf, "%lu ", n);
 173         RETERR(str_totext(buf, target));
 174
 175         /*
 176          * Error.
 177          */
 178         n = uint16_fromregion(&sr);
 179         isc_region_consume(&sr, 2);
 180         if (dns_tsigrcode_totext((dns_rcode_t)n, target) == ISC_R_SUCCESS)
 181                 RETERR(str_totext(" ", target));
 182         else {
 183                 sprintf(buf, "%lu ", n);
 184                 RETERR(str_totext(buf, target));
 185         }
 186
 187         /*
 188          * Key Size.
 189          */
 190         n = uint16_fromregion(&sr);
 191         isc_region_consume(&sr, 2);
 192         sprintf(buf, "%lu", n);
 193         RETERR(str_totext(buf, target));
 194
 195         /*
 196          * Key Data.
 197          */
 198         REQUIRE(n <= sr.length);
 199         dr = sr;
 200         dr.length = n;
 201         if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 202                 RETERR(str_totext(" (", target));
 203         RETERR(str_totext(tctx->linebreak, target));
 204         if (tctx->width == 0)   /* No splitting */
 205                 RETERR(isc_base64_totext(&dr, 60, "", target));
 206         else
 207                 RETERR(isc_base64_totext(&dr, tctx->width - 2,
 208                                          tctx->linebreak, target));
 209         if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 210                 RETERR(str_totext(" ) ", target));
 211         else
 212                 RETERR(str_totext(" ", target));
 213         isc_region_consume(&sr, n);
 214
 215         /*
 216          * Other Size.
 217          */
 218         n = uint16_fromregion(&sr);
 219         isc_region_consume(&sr, 2);
 220         sprintf(buf, "%lu", n);
 221         RETERR(str_totext(buf, target));
 222
 223         /*
 224          * Other Data.
 225          */
 226         REQUIRE(n <= sr.length);
 227         if (n != 0U) {
 228             dr = sr;
 229             dr.length = n;
 230             if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 231                     RETERR(str_totext(" (", target));
 232             RETERR(str_totext(tctx->linebreak, target));
 233                 if (tctx->width == 0)   /* No splitting */
 234                         RETERR(isc_base64_totext(&dr, 60, "", target));
 235                 else
 236                         RETERR(isc_base64_totext(&dr, tctx->width - 2,
 237                                                  tctx->linebreak, target));
 238             if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 239                     RETERR(str_totext(" )", target));
 240         }
 241         return (ISC_R_SUCCESS);
 242 }
 243
 244 static inline isc_result_t
 245 fromwire_tkey(ARGS_FROMWIRE) {
 246         isc_region_t sr;
 247         unsigned long n;
 248         dns_name_t name;
 249
 250         REQUIRE(type == dns_rdatatype_tkey);
 251
 252         UNUSED(type);
 253         UNUSED(rdclass);
 254
 255         dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
 256
 257         /*
 258          * Algorithm.
 259          */
 260         dns_name_init(&name, NULL);
 261         RETERR(dns_name_fromwire(&name, source, dctx, options, target));
 262
 263         /*
 264          * Inception: 4
 265          * Expiration: 4
 266          * Mode: 2
 267          * Error: 2
 268          */
 269         isc_buffer_activeregion(source, &sr);
 270         if (sr.length < 12)
 271                 return (ISC_R_UNEXPECTEDEND);
 272         RETERR(mem_tobuffer(target, sr.base, 12));
 273         isc_region_consume(&sr, 12);
 274         isc_buffer_forward(source, 12);
 275
 276         /*
 277          * Key Length + Key Data.
 278          */
 279         if (sr.length < 2)
 280                 return (ISC_R_UNEXPECTEDEND);
 281         n = uint16_fromregion(&sr);
 282         if (sr.length < n + 2)
 283                 return (ISC_R_UNEXPECTEDEND);
 284         RETERR(mem_tobuffer(target, sr.base, n + 2));
 285         isc_region_consume(&sr, n + 2);
 286         isc_buffer_forward(source, n + 2);
 287
 288         /*
 289          * Other Length + Other Data.
 290          */
 291         if (sr.length < 2)
 292                 return (ISC_R_UNEXPECTEDEND);
 293         n = uint16_fromregion(&sr);
 294         if (sr.length < n + 2)
 295                 return (ISC_R_UNEXPECTEDEND);
 296         isc_buffer_forward(source, n + 2);
 297         return (mem_tobuffer(target, sr.base, n + 2));
 298 }
 299
 300 static inline isc_result_t
 301 towire_tkey(ARGS_TOWIRE) {
 302         isc_region_t sr;
 303         dns_name_t name;
 304         dns_offsets_t offsets;
 305
 306         REQUIRE(rdata->type == dns_rdatatype_tkey);
 307         REQUIRE(rdata->length != 0);
 308
 309         dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
 310         /*
 311          * Algorithm.
 312          */
 313         dns_rdata_toregion(rdata, &sr);
 314         dns_name_init(&name, offsets);
 315         dns_name_fromregion(&name, &sr);
 316         RETERR(dns_name_towire(&name, cctx, target));
 317         isc_region_consume(&sr, name_length(&name));
 318
 319         return (mem_tobuffer(target, sr.base, sr.length));
 320 }
 321
 322 static inline int
 323 compare_tkey(ARGS_COMPARE) {
 324         isc_region_t r1;
 325         isc_region_t r2;
 326         dns_name_t name1;
 327         dns_name_t name2;
 328         int order;
 329
 330         REQUIRE(rdata1->type == rdata2->type);
 331         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 332         REQUIRE(rdata1->type == dns_rdatatype_tkey);
 333         REQUIRE(rdata1->length != 0);
 334         REQUIRE(rdata2->length != 0);
 335
 336         /*
 337          * Algorithm.
 338          */
 339         dns_rdata_toregion(rdata1, &r1);
 340         dns_rdata_toregion(rdata2, &r2);
 341         dns_name_init(&name1, NULL);
 342         dns_name_init(&name2, NULL);
 343         dns_name_fromregion(&name1, &r1);
 344         dns_name_fromregion(&name2, &r2);
 345         if ((order = dns_name_rdatacompare(&name1, &name2)) != 0)
 346                 return (order);
 347         isc_region_consume(&r1, name_length(&name1));
 348         isc_region_consume(&r2, name_length(&name2));
 349         return (isc_region_compare(&r1, &r2));
 350 }
 351
 352 static inline isc_result_t
 353 fromstruct_tkey(ARGS_FROMSTRUCT) {
 354         dns_rdata_tkey_t *tkey = source;
 355
 356         REQUIRE(type == dns_rdatatype_tkey);
 357         REQUIRE(source != NULL);
 358         REQUIRE(tkey->common.rdtype == type);
 359         REQUIRE(tkey->common.rdclass == rdclass);
 360
 361         UNUSED(type);
 362         UNUSED(rdclass);
 363
 364         /*
 365          * Algorithm Name.
 366          */
 367         RETERR(name_tobuffer(&tkey->algorithm, target));
 368
 369         /*
 370          * Inception: 32 bits.
 371          */
 372         RETERR(uint32_tobuffer(tkey->inception, target));
 373
 374         /*
 375          * Expire: 32 bits.
 376          */
 377         RETERR(uint32_tobuffer(tkey->expire, target));
 378
 379         /*
 380          * Mode: 16 bits.
 381          */
 382         RETERR(uint16_tobuffer(tkey->mode, target));
 383
 384         /*
 385          * Error: 16 bits.
 386          */
 387         RETERR(uint16_tobuffer(tkey->error, target));
 388
 389         /*
 390          * Key size: 16 bits.
 391          */
 392         RETERR(uint16_tobuffer(tkey->keylen, target));
 393
 394         /*
 395          * Key.
 396          */
 397         RETERR(mem_tobuffer(target, tkey->key, tkey->keylen));
 398
 399         /*
 400          * Other size: 16 bits.
 401          */
 402         RETERR(uint16_tobuffer(tkey->otherlen, target));
 403
 404         /*
 405          * Other data.
 406          */
 407         return (mem_tobuffer(target, tkey->other, tkey->otherlen));
 408 }
 409
 410 static inline isc_result_t
 411 tostruct_tkey(ARGS_TOSTRUCT) {
 412         dns_rdata_tkey_t *tkey = target;
 413         dns_name_t alg;
 414         isc_region_t sr;
 415
 416         REQUIRE(rdata->type == dns_rdatatype_tkey);
 417         REQUIRE(target != NULL);
 418         REQUIRE(rdata->length != 0);
 419
 420         tkey->common.rdclass = rdata->rdclass;
 421         tkey->common.rdtype = rdata->type;
 422         ISC_LINK_INIT(&tkey->common, link);
 423
 424         dns_rdata_toregion(rdata, &sr);
 425
 426         /*
 427          * Algorithm Name.
 428          */
 429         dns_name_init(&alg, NULL);
 430         dns_name_fromregion(&alg, &sr);
 431         dns_name_init(&tkey->algorithm, NULL);
 432         RETERR(name_duporclone(&alg, mctx, &tkey->algorithm));
 433         isc_region_consume(&sr, name_length(&tkey->algorithm));
 434
 435         /*
 436          * Inception.
 437          */
 438         tkey->inception = uint32_fromregion(&sr);
 439         isc_region_consume(&sr, 4);
 440
 441         /*
 442          * Expire.
 443          */
 444         tkey->expire = uint32_fromregion(&sr);
 445         isc_region_consume(&sr, 4);
 446
 447         /*
 448          * Mode.
 449          */
 450         tkey->mode = uint16_fromregion(&sr);
 451         isc_region_consume(&sr, 2);
 452
 453         /*
 454          * Error.
 455          */
 456         tkey->error = uint16_fromregion(&sr);
 457         isc_region_consume(&sr, 2);
 458
 459         /*
 460          * Key size.
 461          */
 462         tkey->keylen = uint16_fromregion(&sr);
 463         isc_region_consume(&sr, 2);
 464
 465         /*
 466          * Key.
 467          */
 468         INSIST(tkey->keylen + 2U <= sr.length);
 469         tkey->key = mem_maybedup(mctx, sr.base, tkey->keylen);
 470         if (tkey->key == NULL)
 471                 goto cleanup;
 472         isc_region_consume(&sr, tkey->keylen);
 473
 474         /*
 475          * Other size.
 476          */
 477         tkey->otherlen = uint16_fromregion(&sr);
 478         isc_region_consume(&sr, 2);
 479
 480         /*
 481          * Other.
 482          */
 483         INSIST(tkey->otherlen <= sr.length);
 484         tkey->other = mem_maybedup(mctx, sr.base, tkey->otherlen);
 485         if (tkey->other == NULL)
 486                 goto cleanup;
 487
 488         tkey->mctx = mctx;
 489         return (ISC_R_SUCCESS);
 490
 491  cleanup:
 492         if (mctx != NULL)
 493                 dns_name_free(&tkey->algorithm, mctx);
 494         if (mctx != NULL && tkey->key != NULL)
 495                 isc_mem_free(mctx, tkey->key);
 496         return (ISC_R_NOMEMORY);
 497 }
 498
 499 static inline void
 500 freestruct_tkey(ARGS_FREESTRUCT) {
 501         dns_rdata_tkey_t *tkey = (dns_rdata_tkey_t *) source;
 502
 503         REQUIRE(source != NULL);
 504
 505         if (tkey->mctx == NULL)
 506                 return;
 507
 508         dns_name_free(&tkey->algorithm, tkey->mctx);
 509         if (tkey->key != NULL)
 510                 isc_mem_free(tkey->mctx, tkey->key);
 511         if (tkey->other != NULL)
 512                 isc_mem_free(tkey->mctx, tkey->other);
 513         tkey->mctx = NULL;
 514 }
 515
 516 static inline isc_result_t
 517 additionaldata_tkey(ARGS_ADDLDATA) {
 518         UNUSED(rdata);
 519         UNUSED(add);
 520         UNUSED(arg);
 521
 522         REQUIRE(rdata->type == dns_rdatatype_tkey);
 523
 524         return (ISC_R_SUCCESS);
 525 }
 526
 527 static inline isc_result_t
 528 digest_tkey(ARGS_DIGEST) {
 529         UNUSED(rdata);
 530         UNUSED(digest);
 531         UNUSED(arg);
 532
 533         REQUIRE(rdata->type == dns_rdatatype_tkey);
 534
 535         return (ISC_R_NOTIMPLEMENTED);
 536 }
 537
 538 static inline isc_boolean_t
 539 checkowner_tkey(ARGS_CHECKOWNER) {
 540
 541         REQUIRE(type == dns_rdatatype_tkey);
 542
 543         UNUSED(name);
 544         UNUSED(type);
 545         UNUSED(rdclass);
 546         UNUSED(wildcard);
 547
 548         return (ISC_TRUE);
 549 }
 550
 551 static inline isc_boolean_t
 552 checknames_tkey(ARGS_CHECKNAMES) {
 553
 554         REQUIRE(rdata->type == dns_rdatatype_tkey);
 555
 556         UNUSED(rdata);
 557         UNUSED(owner);
 558         UNUSED(bad);
 559
 560         return (ISC_TRUE);
 561 }
 562
 563 static inline isc_result_t
 564 casecompare_tkey(ARGS_COMPARE) {
 565         return (compare_tkey(rdata1, rdata2));
 566 }
 567 #endif  /* RDATA_GENERIC_TKEY_249_C */