contrib/bind-9.2.4rc7/lib/dns/rdata/generic/tkey_249.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2001, 2003  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and 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: tkey_249.c,v 1.48.2.3 2004/03/09 06:11:34 marka Exp $ */
  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 == 249);
  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, downcase, 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(token.value.as_pointer, &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 == 249);
 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         RETERR(isc_base64_totext(&dr, tctx->width - 2,
 205                                  tctx->linebreak, target));
 206         if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 207                 RETERR(str_totext(" ) ", target));
 208         else
 209                 RETERR(str_totext(" ", target));
 210         isc_region_consume(&sr, n);
 211
 212         /*
 213          * Other Size.
 214          */
 215         n = uint16_fromregion(&sr);
 216         isc_region_consume(&sr, 2);
 217         sprintf(buf, "%lu", n);
 218         RETERR(str_totext(buf, target));
 219
 220         /*
 221          * Other Data.
 222          */
 223         REQUIRE(n <= sr.length);
 224         if (n != 0U) {
 225             dr = sr;
 226             dr.length = n;
 227             if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 228                     RETERR(str_totext(" (", target));
 229             RETERR(str_totext(tctx->linebreak, target));
 230             RETERR(isc_base64_totext(&dr, tctx->width - 2,
 231                                      tctx->linebreak, target));
 232             if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
 233                     RETERR(str_totext(" )", target));
 234         }
 235         return (ISC_R_SUCCESS);
 236 }
 237
 238 static inline isc_result_t
 239 fromwire_tkey(ARGS_FROMWIRE) {
 240         isc_region_t sr;
 241         unsigned long n;
 242         dns_name_t name;
 243
 244         REQUIRE(type == 249);
 245
 246         UNUSED(type);
 247         UNUSED(rdclass);
 248
 249         dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
 250
 251         /*
 252          * Algorithm.
 253          */
 254         dns_name_init(&name, NULL);
 255         RETERR(dns_name_fromwire(&name, source, dctx, downcase, target));
 256
 257         /*
 258          * Inception: 4
 259          * Expiration: 4
 260          * Mode: 2
 261          * Error: 2
 262          */
 263         isc_buffer_activeregion(source, &sr);
 264         if (sr.length < 12)
 265                 return (ISC_R_UNEXPECTEDEND);
 266         RETERR(mem_tobuffer(target, sr.base, 12));
 267         isc_region_consume(&sr, 12);
 268         isc_buffer_forward(source, 12);
 269
 270         /*
 271          * Key Length + Key Data.
 272          */
 273         if (sr.length < 2)
 274                 return (ISC_R_UNEXPECTEDEND);
 275         n = uint16_fromregion(&sr);
 276         if (sr.length < n + 2)
 277                 return (ISC_R_UNEXPECTEDEND);
 278         RETERR(mem_tobuffer(target, sr.base, n + 2));
 279         isc_region_consume(&sr, n + 2);
 280         isc_buffer_forward(source, n + 2);
 281
 282         /*
 283          * Other Length + Other Data.
 284          */
 285         if (sr.length < 2)
 286                 return (ISC_R_UNEXPECTEDEND);
 287         n = uint16_fromregion(&sr);
 288         if (sr.length < n + 2)
 289                 return (ISC_R_UNEXPECTEDEND);
 290         isc_buffer_forward(source, n + 2);
 291         return (mem_tobuffer(target, sr.base, n + 2));
 292 }
 293
 294 static inline isc_result_t
 295 towire_tkey(ARGS_TOWIRE) {
 296         isc_region_t sr;
 297         dns_name_t name;
 298         dns_offsets_t offsets;
 299
 300         REQUIRE(rdata->type == 249);
 301         REQUIRE(rdata->length != 0);
 302
 303         dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
 304         /*
 305          * Algorithm.
 306          */
 307         dns_rdata_toregion(rdata, &sr);
 308         dns_name_init(&name, offsets);
 309         dns_name_fromregion(&name, &sr);
 310         RETERR(dns_name_towire(&name, cctx, target));
 311         isc_region_consume(&sr, name_length(&name));
 312
 313         return (mem_tobuffer(target, sr.base, sr.length));
 314 }
 315
 316 static inline int
 317 compare_tkey(ARGS_COMPARE) {
 318         isc_region_t r1;
 319         isc_region_t r2;
 320         dns_name_t name1;
 321         dns_name_t name2;
 322         int order;
 323
 324         REQUIRE(rdata1->type == rdata2->type);
 325         REQUIRE(rdata1->rdclass == rdata2->rdclass);
 326         REQUIRE(rdata1->type == 249);
 327         REQUIRE(rdata1->length != 0);
 328         REQUIRE(rdata2->length != 0);
 329
 330         /*
 331          * Algorithm.
 332          */
 333         dns_rdata_toregion(rdata1, &r1);
 334         dns_rdata_toregion(rdata2, &r2);
 335         dns_name_init(&name1, NULL);
 336         dns_name_init(&name2, NULL);
 337         dns_name_fromregion(&name1, &r1);
 338         dns_name_fromregion(&name2, &r2);
 339         if ((order = dns_name_rdatacompare(&name1, &name2)) != 0)
 340                 return (order);
 341         isc_region_consume(&r1, name_length(&name1));
 342         isc_region_consume(&r2, name_length(&name2));
 343         return (compare_region(&r1, &r2));
 344 }
 345
 346 static inline isc_result_t
 347 fromstruct_tkey(ARGS_FROMSTRUCT) {
 348         dns_rdata_tkey_t *tkey = source;
 349
 350         REQUIRE(type == 249);
 351         REQUIRE(source != NULL);
 352         REQUIRE(tkey->common.rdtype == type);
 353         REQUIRE(tkey->common.rdclass == rdclass);
 354
 355         UNUSED(type);
 356         UNUSED(rdclass);
 357
 358         /*
 359          * Algorithm Name.
 360          */
 361         RETERR(name_tobuffer(&tkey->algorithm, target));
 362
 363         /*
 364          * Inception: 32 bits.
 365          */
 366         RETERR(uint32_tobuffer(tkey->inception, target));
 367
 368         /*
 369          * Expire: 32 bits.
 370          */
 371         RETERR(uint32_tobuffer(tkey->expire, target));
 372
 373         /*
 374          * Mode: 16 bits.
 375          */
 376         RETERR(uint16_tobuffer(tkey->mode, target));
 377
 378         /*
 379          * Error: 16 bits.
 380          */
 381         RETERR(uint16_tobuffer(tkey->error, target));
 382
 383         /*
 384          * Key size: 16 bits.
 385          */
 386         RETERR(uint16_tobuffer(tkey->keylen, target));
 387
 388         /*
 389          * Key.
 390          */
 391         RETERR(mem_tobuffer(target, tkey->key, tkey->keylen));
 392
 393         /*
 394          * Other size: 16 bits.
 395          */
 396         RETERR(uint16_tobuffer(tkey->otherlen, target));
 397
 398         /*
 399          * Other data.
 400          */
 401         return (mem_tobuffer(target, tkey->other, tkey->otherlen));
 402 }
 403
 404 static inline isc_result_t
 405 tostruct_tkey(ARGS_TOSTRUCT) {
 406         dns_rdata_tkey_t *tkey = target;
 407         dns_name_t alg;
 408         isc_region_t sr;
 409
 410         REQUIRE(rdata->type == 249);
 411         REQUIRE(target != NULL);
 412         REQUIRE(rdata->length != 0);
 413
 414         tkey->common.rdclass = rdata->rdclass;
 415         tkey->common.rdtype = rdata->type;
 416         ISC_LINK_INIT(&tkey->common, link);
 417
 418         dns_rdata_toregion(rdata, &sr);
 419
 420         /*
 421          * Algorithm Name.
 422          */
 423         dns_name_init(&alg, NULL);
 424         dns_name_fromregion(&alg, &sr);
 425         dns_name_init(&tkey->algorithm, NULL);
 426         RETERR(name_duporclone(&alg, mctx, &tkey->algorithm));
 427         isc_region_consume(&sr, name_length(&tkey->algorithm));
 428
 429         /*
 430          * Inception.
 431          */
 432         tkey->inception = uint32_fromregion(&sr);
 433         isc_region_consume(&sr, 4);
 434
 435         /*
 436          * Expire.
 437          */
 438         tkey->expire = uint32_fromregion(&sr);
 439         isc_region_consume(&sr, 4);
 440
 441         /*
 442          * Mode.
 443          */
 444         tkey->mode = uint16_fromregion(&sr);
 445         isc_region_consume(&sr, 2);
 446
 447         /*
 448          * Error.
 449          */
 450         tkey->error = uint16_fromregion(&sr);
 451         isc_region_consume(&sr, 2);
 452
 453         /*
 454          * Key size.
 455          */
 456         tkey->keylen = uint16_fromregion(&sr);
 457         isc_region_consume(&sr, 2);
 458
 459         /*
 460          * Key.
 461          */
 462         tkey->key = mem_maybedup(mctx, sr.base, tkey->keylen);
 463         if (tkey->key == NULL)
 464                 goto cleanup;
 465         isc_region_consume(&sr, tkey->keylen);
 466
 467         /*
 468          * Other size.
 469          */
 470         tkey->otherlen = uint16_fromregion(&sr);
 471         isc_region_consume(&sr, 2);
 472
 473         /*
 474          * Other.
 475          */
 476         tkey->other = mem_maybedup(mctx, sr.base, tkey->otherlen);
 477         if (tkey->other == NULL)
 478                 goto cleanup;
 479
 480         tkey->mctx = mctx;
 481         return (ISC_R_SUCCESS);
 482
 483  cleanup:
 484         if (mctx != NULL)
 485                 dns_name_free(&tkey->algorithm, mctx);
 486         if (mctx != NULL && tkey->key != NULL)
 487                 isc_mem_free(mctx, tkey->key);
 488         return (ISC_R_NOMEMORY);
 489 }
 490
 491 static inline void
 492 freestruct_tkey(ARGS_FREESTRUCT) {
 493         dns_rdata_tkey_t *tkey = (dns_rdata_tkey_t *) source;
 494
 495         REQUIRE(source != NULL);
 496
 497         if (tkey->mctx == NULL)
 498                 return;
 499
 500         dns_name_free(&tkey->algorithm, tkey->mctx);
 501         if (tkey->key != NULL)
 502                 isc_mem_free(tkey->mctx, tkey->key);
 503         if (tkey->other != NULL)
 504                 isc_mem_free(tkey->mctx, tkey->other);
 505         tkey->mctx = NULL;
 506 }
 507
 508 static inline isc_result_t
 509 additionaldata_tkey(ARGS_ADDLDATA) {
 510         UNUSED(rdata);
 511         UNUSED(add);
 512         UNUSED(arg);
 513
 514         REQUIRE(rdata->type == 249);
 515
 516         return (ISC_R_SUCCESS);
 517 }
 518
 519 static inline isc_result_t
 520 digest_tkey(ARGS_DIGEST) {
 521         UNUSED(rdata);
 522         UNUSED(digest);
 523         UNUSED(arg);
 524
 525         REQUIRE(rdata->type == 249);
 526
 527         return (ISC_R_NOTIMPLEMENTED);
 528 }
 529
 530 #endif  /* RDATA_GENERIC_TKEY_249_C */