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