1/* 2 * Copyright (C) 2004, 2007, 2009 Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (C) 1999-2001 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: dname_39.c,v 1.40 2009/12/04 22:06:37 tbox Exp $ */ 19 20/* Reviewed: Wed Mar 15 16:52:38 PST 2000 by explorer */ 21 22/* RFC2672 */ 23 24#ifndef RDATA_GENERIC_DNAME_39_C 25#define RDATA_GENERIC_DNAME_39_C 26 27#define RRTYPE_DNAME_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON) 28 29static inline isc_result_t 30fromtext_dname(ARGS_FROMTEXT) { 31 isc_token_t token; 32 dns_name_t name; 33 isc_buffer_t buffer; 34 35 REQUIRE(type == 39); 36 37 UNUSED(type); 38 UNUSED(rdclass); 39 UNUSED(callbacks); 40 41 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, 42 ISC_FALSE)); 43 44 dns_name_init(&name, NULL); 45 buffer_fromregion(&buffer, &token.value.as_region); 46 origin = (origin != NULL) ? origin : dns_rootname; 47 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); 48 return (ISC_R_SUCCESS); 49} 50 51static inline isc_result_t 52totext_dname(ARGS_TOTEXT) { 53 isc_region_t region; 54 dns_name_t name; 55 dns_name_t prefix; 56 isc_boolean_t sub; 57 58 REQUIRE(rdata->type == 39); 59 REQUIRE(rdata->length != 0); 60 61 dns_name_init(&name, NULL); 62 dns_name_init(&prefix, NULL); 63 64 dns_rdata_toregion(rdata, ®ion); 65 dns_name_fromregion(&name, ®ion); 66 67 sub = name_prefix(&name, tctx->origin, &prefix); 68 69 return (dns_name_totext(&prefix, sub, target)); 70} 71 72static inline isc_result_t 73fromwire_dname(ARGS_FROMWIRE) { 74 dns_name_t name; 75 76 REQUIRE(type == 39); 77 78 UNUSED(type); 79 UNUSED(rdclass); 80 81 dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); 82 83 dns_name_init(&name, NULL); 84 return(dns_name_fromwire(&name, source, dctx, options, target)); 85} 86 87static inline isc_result_t 88towire_dname(ARGS_TOWIRE) { 89 dns_name_t name; 90 dns_offsets_t offsets; 91 isc_region_t region; 92 93 REQUIRE(rdata->type == 39); 94 REQUIRE(rdata->length != 0); 95 96 dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); 97 dns_name_init(&name, offsets); 98 dns_rdata_toregion(rdata, ®ion); 99 dns_name_fromregion(&name, ®ion); 100 101 return (dns_name_towire(&name, cctx, target)); 102} 103 104static inline int 105compare_dname(ARGS_COMPARE) { 106 dns_name_t name1; 107 dns_name_t name2; 108 isc_region_t region1; 109 isc_region_t region2; 110 111 REQUIRE(rdata1->type == rdata2->type); 112 REQUIRE(rdata1->rdclass == rdata2->rdclass); 113 REQUIRE(rdata1->type == 39); 114 REQUIRE(rdata1->length != 0); 115 REQUIRE(rdata2->length != 0); 116 117 dns_name_init(&name1, NULL); 118 dns_name_init(&name2, NULL); 119 120 dns_rdata_toregion(rdata1, ®ion1); 121 dns_rdata_toregion(rdata2, ®ion2); 122 123 dns_name_fromregion(&name1, ®ion1); 124 dns_name_fromregion(&name2, ®ion2); 125 126 return (dns_name_rdatacompare(&name1, &name2)); 127} 128 129static inline isc_result_t 130fromstruct_dname(ARGS_FROMSTRUCT) { 131 dns_rdata_dname_t *dname = source; 132 isc_region_t region; 133 134 REQUIRE(type == 39); 135 REQUIRE(source != NULL); 136 REQUIRE(dname->common.rdtype == type); 137 REQUIRE(dname->common.rdclass == rdclass); 138 139 UNUSED(type); 140 UNUSED(rdclass); 141 142 dns_name_toregion(&dname->dname, ®ion); 143 return (isc_buffer_copyregion(target, ®ion)); 144} 145 146static inline isc_result_t 147tostruct_dname(ARGS_TOSTRUCT) { 148 isc_region_t region; 149 dns_rdata_dname_t *dname = target; 150 dns_name_t name; 151 152 REQUIRE(rdata->type == 39); 153 REQUIRE(target != NULL); 154 REQUIRE(rdata->length != 0); 155 156 dname->common.rdclass = rdata->rdclass; 157 dname->common.rdtype = rdata->type; 158 ISC_LINK_INIT(&dname->common, link); 159 160 dns_name_init(&name, NULL); 161 dns_rdata_toregion(rdata, ®ion); 162 dns_name_fromregion(&name, ®ion); 163 dns_name_init(&dname->dname, NULL); 164 RETERR(name_duporclone(&name, mctx, &dname->dname)); 165 dname->mctx = mctx; 166 return (ISC_R_SUCCESS); 167} 168 169static inline void 170freestruct_dname(ARGS_FREESTRUCT) { 171 dns_rdata_dname_t *dname = source; 172 173 REQUIRE(source != NULL); 174 REQUIRE(dname->common.rdtype == 39); 175 176 if (dname->mctx == NULL) 177 return; 178 179 dns_name_free(&dname->dname, dname->mctx); 180 dname->mctx = NULL; 181} 182 183static inline isc_result_t 184additionaldata_dname(ARGS_ADDLDATA) { 185 UNUSED(rdata); 186 UNUSED(add); 187 UNUSED(arg); 188 189 REQUIRE(rdata->type == 39); 190 191 return (ISC_R_SUCCESS); 192} 193 194static inline isc_result_t 195digest_dname(ARGS_DIGEST) { 196 isc_region_t r; 197 dns_name_t name; 198 199 REQUIRE(rdata->type == 39); 200 201 dns_rdata_toregion(rdata, &r); 202 dns_name_init(&name, NULL); 203 dns_name_fromregion(&name, &r); 204 205 return (dns_name_digest(&name, digest, arg)); 206} 207 208static inline isc_boolean_t 209checkowner_dname(ARGS_CHECKOWNER) { 210 211 REQUIRE(type == 39); 212 213 UNUSED(name); 214 UNUSED(type); 215 UNUSED(rdclass); 216 UNUSED(wildcard); 217 218 return (ISC_TRUE); 219} 220 221static inline isc_boolean_t 222checknames_dname(ARGS_CHECKNAMES) { 223 224 REQUIRE(rdata->type == 39); 225 226 UNUSED(rdata); 227 UNUSED(owner); 228 UNUSED(bad); 229 230 return (ISC_TRUE); 231} 232 233static inline int 234casecompare_dname(ARGS_COMPARE) { 235 return (compare_dname(rdata1, rdata2)); 236} 237#endif /* RDATA_GENERIC_DNAME_39_C */ 238