1/* 2 * Copyright (C) 2004, 2005, 2007, 2009 Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (C) 1999-2001, 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: px_26.c,v 1.45 2009/12/04 22:06:37 tbox Exp $ */ 19 20/* Reviewed: Mon Mar 20 10:44:27 PST 2000 */ 21 22/* RFC2163 */ 23 24#ifndef RDATA_IN_1_PX_26_C 25#define RDATA_IN_1_PX_26_C 26 27#define RRTYPE_PX_ATTRIBUTES (0) 28 29static inline isc_result_t 30fromtext_in_px(ARGS_FROMTEXT) { 31 isc_token_t token; 32 dns_name_t name; 33 isc_buffer_t buffer; 34 35 REQUIRE(type == 26); 36 REQUIRE(rdclass == 1); 37 38 UNUSED(type); 39 UNUSED(rdclass); 40 UNUSED(callbacks); 41 42 /* 43 * Preference. 44 */ 45 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 46 ISC_FALSE)); 47 if (token.value.as_ulong > 0xffffU) 48 RETTOK(ISC_R_RANGE); 49 RETERR(uint16_tobuffer(token.value.as_ulong, target)); 50 51 /* 52 * MAP822. 53 */ 54 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, 55 ISC_FALSE)); 56 dns_name_init(&name, NULL); 57 buffer_fromregion(&buffer, &token.value.as_region); 58 origin = (origin != NULL) ? origin : dns_rootname; 59 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); 60 61 /* 62 * MAPX400. 63 */ 64 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, 65 ISC_FALSE)); 66 dns_name_init(&name, NULL); 67 buffer_fromregion(&buffer, &token.value.as_region); 68 origin = (origin != NULL) ? origin : dns_rootname; 69 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); 70 return (ISC_R_SUCCESS); 71} 72 73static inline isc_result_t 74totext_in_px(ARGS_TOTEXT) { 75 isc_region_t region; 76 dns_name_t name; 77 dns_name_t prefix; 78 isc_boolean_t sub; 79 char buf[sizeof("64000")]; 80 unsigned short num; 81 82 REQUIRE(rdata->type == 26); 83 REQUIRE(rdata->rdclass == 1); 84 REQUIRE(rdata->length != 0); 85 86 dns_name_init(&name, NULL); 87 dns_name_init(&prefix, NULL); 88 89 /* 90 * Preference. 91 */ 92 dns_rdata_toregion(rdata, ®ion); 93 num = uint16_fromregion(®ion); 94 isc_region_consume(®ion, 2); 95 sprintf(buf, "%u", num); 96 RETERR(str_totext(buf, target)); 97 RETERR(str_totext(" ", target)); 98 99 /* 100 * MAP822. 101 */ 102 dns_name_fromregion(&name, ®ion); 103 sub = name_prefix(&name, tctx->origin, &prefix); 104 isc_region_consume(®ion, name_length(&name)); 105 RETERR(dns_name_totext(&prefix, sub, target)); 106 RETERR(str_totext(" ", target)); 107 108 /* 109 * MAPX400. 110 */ 111 dns_name_fromregion(&name, ®ion); 112 sub = name_prefix(&name, tctx->origin, &prefix); 113 return(dns_name_totext(&prefix, sub, target)); 114} 115 116static inline isc_result_t 117fromwire_in_px(ARGS_FROMWIRE) { 118 dns_name_t name; 119 isc_region_t sregion; 120 121 REQUIRE(type == 26); 122 REQUIRE(rdclass == 1); 123 124 UNUSED(type); 125 UNUSED(rdclass); 126 127 dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); 128 129 dns_name_init(&name, NULL); 130 131 /* 132 * Preference. 133 */ 134 isc_buffer_activeregion(source, &sregion); 135 if (sregion.length < 2) 136 return (ISC_R_UNEXPECTEDEND); 137 RETERR(mem_tobuffer(target, sregion.base, 2)); 138 isc_buffer_forward(source, 2); 139 140 /* 141 * MAP822. 142 */ 143 RETERR(dns_name_fromwire(&name, source, dctx, options, target)); 144 145 /* 146 * MAPX400. 147 */ 148 return (dns_name_fromwire(&name, source, dctx, options, target)); 149} 150 151static inline isc_result_t 152towire_in_px(ARGS_TOWIRE) { 153 dns_name_t name; 154 dns_offsets_t offsets; 155 isc_region_t region; 156 157 REQUIRE(rdata->type == 26); 158 REQUIRE(rdata->rdclass == 1); 159 REQUIRE(rdata->length != 0); 160 161 dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); 162 /* 163 * Preference. 164 */ 165 dns_rdata_toregion(rdata, ®ion); 166 RETERR(mem_tobuffer(target, region.base, 2)); 167 isc_region_consume(®ion, 2); 168 169 /* 170 * MAP822. 171 */ 172 dns_name_init(&name, offsets); 173 dns_name_fromregion(&name, ®ion); 174 RETERR(dns_name_towire(&name, cctx, target)); 175 isc_region_consume(®ion, name_length(&name)); 176 177 /* 178 * MAPX400. 179 */ 180 dns_name_init(&name, offsets); 181 dns_name_fromregion(&name, ®ion); 182 return (dns_name_towire(&name, cctx, target)); 183} 184 185static inline int 186compare_in_px(ARGS_COMPARE) { 187 dns_name_t name1; 188 dns_name_t name2; 189 isc_region_t region1; 190 isc_region_t region2; 191 int order; 192 193 REQUIRE(rdata1->type == rdata2->type); 194 REQUIRE(rdata1->rdclass == rdata2->rdclass); 195 REQUIRE(rdata1->type == 26); 196 REQUIRE(rdata1->rdclass == 1); 197 REQUIRE(rdata1->length != 0); 198 REQUIRE(rdata2->length != 0); 199 200 order = memcmp(rdata1->data, rdata2->data, 2); 201 if (order != 0) 202 return (order < 0 ? -1 : 1); 203 204 dns_name_init(&name1, NULL); 205 dns_name_init(&name2, NULL); 206 207 dns_rdata_toregion(rdata1, ®ion1); 208 dns_rdata_toregion(rdata2, ®ion2); 209 210 isc_region_consume(®ion1, 2); 211 isc_region_consume(®ion2, 2); 212 213 dns_name_fromregion(&name1, ®ion1); 214 dns_name_fromregion(&name2, ®ion2); 215 216 order = dns_name_rdatacompare(&name1, &name2); 217 if (order != 0) 218 return (order); 219 220 isc_region_consume(®ion1, name_length(&name1)); 221 isc_region_consume(®ion2, name_length(&name2)); 222 223 dns_name_fromregion(&name1, ®ion1); 224 dns_name_fromregion(&name2, ®ion2); 225 226 return (dns_name_rdatacompare(&name1, &name2)); 227} 228 229static inline isc_result_t 230fromstruct_in_px(ARGS_FROMSTRUCT) { 231 dns_rdata_in_px_t *px = source; 232 isc_region_t region; 233 234 REQUIRE(type == 26); 235 REQUIRE(rdclass == 1); 236 REQUIRE(source != NULL); 237 REQUIRE(px->common.rdtype == type); 238 REQUIRE(px->common.rdclass == rdclass); 239 240 UNUSED(type); 241 UNUSED(rdclass); 242 243 RETERR(uint16_tobuffer(px->preference, target)); 244 dns_name_toregion(&px->map822, ®ion); 245 RETERR(isc_buffer_copyregion(target, ®ion)); 246 dns_name_toregion(&px->mapx400, ®ion); 247 return (isc_buffer_copyregion(target, ®ion)); 248} 249 250static inline isc_result_t 251tostruct_in_px(ARGS_TOSTRUCT) { 252 dns_rdata_in_px_t *px = target; 253 dns_name_t name; 254 isc_region_t region; 255 isc_result_t result; 256 257 REQUIRE(rdata->type == 26); 258 REQUIRE(rdata->rdclass == 1); 259 REQUIRE(target != NULL); 260 REQUIRE(rdata->length != 0); 261 262 px->common.rdclass = rdata->rdclass; 263 px->common.rdtype = rdata->type; 264 ISC_LINK_INIT(&px->common, link); 265 266 dns_name_init(&name, NULL); 267 dns_rdata_toregion(rdata, ®ion); 268 269 px->preference = uint16_fromregion(®ion); 270 isc_region_consume(®ion, 2); 271 272 dns_name_fromregion(&name, ®ion); 273 274 dns_name_init(&px->map822, NULL); 275 RETERR(name_duporclone(&name, mctx, &px->map822)); 276 isc_region_consume(®ion, name_length(&px->map822)); 277 278 dns_name_init(&px->mapx400, NULL); 279 result = name_duporclone(&name, mctx, &px->mapx400); 280 if (result != ISC_R_SUCCESS) 281 goto cleanup; 282 283 px->mctx = mctx; 284 return (result); 285 286 cleanup: 287 dns_name_free(&px->map822, mctx); 288 return (ISC_R_NOMEMORY); 289} 290 291static inline void 292freestruct_in_px(ARGS_FREESTRUCT) { 293 dns_rdata_in_px_t *px = source; 294 295 REQUIRE(source != NULL); 296 REQUIRE(px->common.rdclass == 1); 297 REQUIRE(px->common.rdtype == 26); 298 299 if (px->mctx == NULL) 300 return; 301 302 dns_name_free(&px->map822, px->mctx); 303 dns_name_free(&px->mapx400, px->mctx); 304 px->mctx = NULL; 305} 306 307static inline isc_result_t 308additionaldata_in_px(ARGS_ADDLDATA) { 309 REQUIRE(rdata->type == 26); 310 REQUIRE(rdata->rdclass == 1); 311 312 UNUSED(rdata); 313 UNUSED(add); 314 UNUSED(arg); 315 316 return (ISC_R_SUCCESS); 317} 318 319static inline isc_result_t 320digest_in_px(ARGS_DIGEST) { 321 isc_region_t r1, r2; 322 dns_name_t name; 323 isc_result_t result; 324 325 REQUIRE(rdata->type == 26); 326 REQUIRE(rdata->rdclass == 1); 327 328 dns_rdata_toregion(rdata, &r1); 329 r2 = r1; 330 isc_region_consume(&r2, 2); 331 r1.length = 2; 332 result = (digest)(arg, &r1); 333 if (result != ISC_R_SUCCESS) 334 return (result); 335 dns_name_init(&name, NULL); 336 dns_name_fromregion(&name, &r2); 337 result = dns_name_digest(&name, digest, arg); 338 if (result != ISC_R_SUCCESS) 339 return (result); 340 isc_region_consume(&r2, name_length(&name)); 341 dns_name_init(&name, NULL); 342 dns_name_fromregion(&name, &r2); 343 344 return (dns_name_digest(&name, digest, arg)); 345} 346 347static inline isc_boolean_t 348checkowner_in_px(ARGS_CHECKOWNER) { 349 350 REQUIRE(type == 26); 351 REQUIRE(rdclass == 1); 352 353 UNUSED(name); 354 UNUSED(type); 355 UNUSED(rdclass); 356 UNUSED(wildcard); 357 358 return (ISC_TRUE); 359} 360 361static inline isc_boolean_t 362checknames_in_px(ARGS_CHECKNAMES) { 363 364 REQUIRE(rdata->type == 26); 365 REQUIRE(rdata->rdclass == 1); 366 367 UNUSED(rdata); 368 UNUSED(owner); 369 UNUSED(bad); 370 371 return (ISC_TRUE); 372} 373 374static inline int 375casecompare_in_px(ARGS_COMPARE) { 376 return (compare_in_px(rdata1, rdata2)); 377} 378 379#endif /* RDATA_IN_1_PX_26_C */ 380