1 /* $NetBSD: md_3.c,v 1.4 2014/12/10 04:37:59 christos Exp $ */ 2 3 /* 4 * Copyright (C) 2004, 2007, 2009 Internet Systems Consortium, Inc. ("ISC") 5 * Copyright (C) 1998-2001 Internet Software Consortium. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* Id: md_3.c,v 1.49 2009/12/04 22:06:37 tbox Exp */ 21 22 /* Reviewed: Wed Mar 15 17:48:20 PST 2000 by bwelling */ 23 24 #ifndef RDATA_GENERIC_MD_3_C 25 #define RDATA_GENERIC_MD_3_C 26 27 #define RRTYPE_MD_ATTRIBUTES (0) 28 29 static inline isc_result_t 30 fromtext_md(ARGS_FROMTEXT) { 31 isc_token_t token; 32 dns_name_t name; 33 isc_buffer_t buffer; 34 35 REQUIRE(type == 3); 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 51 static inline isc_result_t 52 totext_md(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 == 3); 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 72 static inline isc_result_t 73 fromwire_md(ARGS_FROMWIRE) { 74 dns_name_t name; 75 76 REQUIRE(type == 3); 77 78 UNUSED(type); 79 UNUSED(rdclass); 80 81 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14); 82 83 dns_name_init(&name, NULL); 84 return (dns_name_fromwire(&name, source, dctx, options, target)); 85 } 86 87 static inline isc_result_t 88 towire_md(ARGS_TOWIRE) { 89 dns_name_t name; 90 dns_offsets_t offsets; 91 isc_region_t region; 92 93 REQUIRE(rdata->type == 3); 94 REQUIRE(rdata->length != 0); 95 96 dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14); 97 98 dns_name_init(&name, offsets); 99 dns_rdata_toregion(rdata, ®ion); 100 dns_name_fromregion(&name, ®ion); 101 102 return (dns_name_towire(&name, cctx, target)); 103 } 104 105 static inline int 106 compare_md(ARGS_COMPARE) { 107 dns_name_t name1; 108 dns_name_t name2; 109 isc_region_t region1; 110 isc_region_t region2; 111 112 REQUIRE(rdata1->type == rdata2->type); 113 REQUIRE(rdata1->rdclass == rdata2->rdclass); 114 REQUIRE(rdata1->type == 3); 115 REQUIRE(rdata1->length != 0); 116 REQUIRE(rdata2->length != 0); 117 118 dns_name_init(&name1, NULL); 119 dns_name_init(&name2, NULL); 120 121 dns_rdata_toregion(rdata1, ®ion1); 122 dns_rdata_toregion(rdata2, ®ion2); 123 124 dns_name_fromregion(&name1, ®ion1); 125 dns_name_fromregion(&name2, ®ion2); 126 127 return (dns_name_rdatacompare(&name1, &name2)); 128 } 129 130 static inline isc_result_t 131 fromstruct_md(ARGS_FROMSTRUCT) { 132 dns_rdata_md_t *md = source; 133 isc_region_t region; 134 135 REQUIRE(type == 3); 136 REQUIRE(source != NULL); 137 REQUIRE(md->common.rdtype == type); 138 REQUIRE(md->common.rdclass == rdclass); 139 140 UNUSED(type); 141 UNUSED(rdclass); 142 143 dns_name_toregion(&md->md, ®ion); 144 return (isc_buffer_copyregion(target, ®ion)); 145 } 146 147 static inline isc_result_t 148 tostruct_md(ARGS_TOSTRUCT) { 149 dns_rdata_md_t *md = target; 150 isc_region_t r; 151 dns_name_t name; 152 153 REQUIRE(rdata->type == 3); 154 REQUIRE(target != NULL); 155 REQUIRE(rdata->length != 0); 156 157 md->common.rdclass = rdata->rdclass; 158 md->common.rdtype = rdata->type; 159 ISC_LINK_INIT(&md->common, link); 160 161 dns_name_init(&name, NULL); 162 dns_rdata_toregion(rdata, &r); 163 dns_name_fromregion(&name, &r); 164 dns_name_init(&md->md, NULL); 165 RETERR(name_duporclone(&name, mctx, &md->md)); 166 md->mctx = mctx; 167 return (ISC_R_SUCCESS); 168 } 169 170 static inline void 171 freestruct_md(ARGS_FREESTRUCT) { 172 dns_rdata_md_t *md = source; 173 174 REQUIRE(source != NULL); 175 REQUIRE(md->common.rdtype == 3); 176 177 if (md->mctx == NULL) 178 return; 179 180 dns_name_free(&md->md, md->mctx); 181 md->mctx = NULL; 182 } 183 184 static inline isc_result_t 185 additionaldata_md(ARGS_ADDLDATA) { 186 dns_name_t name; 187 dns_offsets_t offsets; 188 isc_region_t region; 189 190 REQUIRE(rdata->type == 3); 191 192 dns_name_init(&name, offsets); 193 dns_rdata_toregion(rdata, ®ion); 194 dns_name_fromregion(&name, ®ion); 195 196 return ((add)(arg, &name, dns_rdatatype_a)); 197 } 198 199 static inline isc_result_t 200 digest_md(ARGS_DIGEST) { 201 isc_region_t r; 202 dns_name_t name; 203 204 REQUIRE(rdata->type == 3); 205 206 dns_rdata_toregion(rdata, &r); 207 dns_name_init(&name, NULL); 208 dns_name_fromregion(&name, &r); 209 210 return (dns_name_digest(&name, digest, arg)); 211 } 212 213 static inline isc_boolean_t 214 checkowner_md(ARGS_CHECKOWNER) { 215 216 REQUIRE(type == 3); 217 218 UNUSED(name); 219 UNUSED(type); 220 UNUSED(rdclass); 221 UNUSED(wildcard); 222 223 return (ISC_TRUE); 224 } 225 226 static inline isc_boolean_t 227 checknames_md(ARGS_CHECKNAMES) { 228 229 REQUIRE(rdata->type == 3); 230 231 UNUSED(rdata); 232 UNUSED(owner); 233 UNUSED(bad); 234 235 return (ISC_TRUE); 236 } 237 238 static inline int 239 casecompare_md(ARGS_COMPARE) { 240 return (compare_md(rdata1, rdata2)); 241 } 242 243 #endif /* RDATA_GENERIC_MD_3_C */ 244