1/* 2 * Copyright (C) 2011, 2012 Internet Systems Consortium, Inc. ("ISC") 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 * PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17/* $Id$ */ 18 19#ifndef GENERIC_URI_256_C 20#define GENERIC_URI_256_C 1 21 22#define RRTYPE_URI_ATTRIBUTES (0) 23 24static inline isc_result_t 25fromtext_uri(ARGS_FROMTEXT) { 26 isc_token_t token; 27 28 REQUIRE(type == 256); 29 30 UNUSED(type); 31 UNUSED(rdclass); 32 UNUSED(origin); 33 UNUSED(options); 34 UNUSED(callbacks); 35 36 /* 37 * Priority 38 */ 39 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 40 ISC_FALSE)); 41 if (token.value.as_ulong > 0xffffU) 42 RETTOK(ISC_R_RANGE); 43 RETERR(uint16_tobuffer(token.value.as_ulong, target)); 44 45 /* 46 * Weight 47 */ 48 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 49 ISC_FALSE)); 50 if (token.value.as_ulong > 0xffffU) 51 RETTOK(ISC_R_RANGE); 52 RETERR(uint16_tobuffer(token.value.as_ulong, target)); 53 54 /* 55 * Target URI 56 */ 57 RETERR(isc_lex_getmastertoken(lexer, &token, 58 isc_tokentype_qstring, ISC_FALSE)); 59 if (token.type != isc_tokentype_qstring) 60 RETTOK(DNS_R_SYNTAX); 61 RETTOK(multitxt_fromtext(&token.value.as_textregion, target)); 62 return (ISC_R_SUCCESS); 63} 64 65static inline isc_result_t 66totext_uri(ARGS_TOTEXT) { 67 isc_region_t region; 68 unsigned short priority, weight; 69 char buf[sizeof("65000 ")]; 70 71 UNUSED(tctx); 72 73 REQUIRE(rdata->type == 256); 74 REQUIRE(rdata->length != 0); 75 76 dns_rdata_toregion(rdata, ®ion); 77 78 /* 79 * Priority 80 */ 81 priority = uint16_fromregion(®ion); 82 isc_region_consume(®ion, 2); 83 sprintf(buf, "%u ", priority); 84 RETERR(str_totext(buf, target)); 85 86 /* 87 * Weight 88 */ 89 weight = uint16_fromregion(®ion); 90 isc_region_consume(®ion, 2); 91 sprintf(buf, "%u ", weight); 92 RETERR(str_totext(buf, target)); 93 94 /* 95 * Target URI 96 */ 97 RETERR(multitxt_totext(®ion, target)); 98 return (ISC_R_SUCCESS); 99} 100 101static inline isc_result_t 102fromwire_uri(ARGS_FROMWIRE) { 103 isc_region_t region; 104 105 REQUIRE(type == 256); 106 107 UNUSED(type); 108 UNUSED(rdclass); 109 UNUSED(dctx); 110 UNUSED(options); 111 112 /* 113 * Priority, weight 114 */ 115 isc_buffer_activeregion(source, ®ion); 116 if (region.length < 4) 117 return (ISC_R_UNEXPECTEDEND); 118 RETERR(mem_tobuffer(target, region.base, 4)); 119 isc_buffer_forward(source, 4); 120 121 /* 122 * Target URI 123 */ 124 RETERR(multitxt_fromwire(source, target)); 125 126 return (ISC_R_SUCCESS); 127} 128 129static inline isc_result_t 130towire_uri(ARGS_TOWIRE) { 131 isc_region_t region; 132 133 REQUIRE(rdata->type == 256); 134 REQUIRE(rdata->length != 0); 135 136 UNUSED(cctx); 137 138 dns_rdata_toregion(rdata, ®ion); 139 return (mem_tobuffer(target, region.base, region.length)); 140} 141 142static inline int 143compare_uri(ARGS_COMPARE) { 144 isc_region_t r1; 145 isc_region_t r2; 146 int order; 147 148 REQUIRE(rdata1->type == rdata2->type); 149 REQUIRE(rdata1->rdclass == rdata2->rdclass); 150 REQUIRE(rdata1->type == 256); 151 REQUIRE(rdata1->length != 0); 152 REQUIRE(rdata2->length != 0); 153 154 dns_rdata_toregion(rdata1, &r1); 155 dns_rdata_toregion(rdata2, &r2); 156 157 /* 158 * Priority 159 */ 160 order = memcmp(r1.base, r2.base, 2); 161 if (order != 0) 162 return (order < 0 ? -1 : 1); 163 isc_region_consume(&r1, 2); 164 isc_region_consume(&r2, 2); 165 166 /* 167 * Weight 168 */ 169 order = memcmp(r1.base, r2.base, 2); 170 if (order != 0) 171 return (order < 0 ? -1 : 1); 172 isc_region_consume(&r1, 2); 173 isc_region_consume(&r2, 2); 174 175 return (isc_region_compare(&r1, &r2)); 176} 177 178static inline isc_result_t 179fromstruct_uri(ARGS_FROMSTRUCT) { 180 dns_rdata_uri_t *uri = source; 181 isc_region_t region; 182 isc_uint8_t len; 183 184 REQUIRE(type == 256); 185 REQUIRE(source != NULL); 186 REQUIRE(uri->common.rdtype == type); 187 REQUIRE(uri->common.rdclass == rdclass); 188 REQUIRE(uri->target != NULL && uri->tgt_len != 0); 189 190 UNUSED(type); 191 UNUSED(rdclass); 192 193 /* 194 * Priority 195 */ 196 RETERR(uint16_tobuffer(uri->priority, target)); 197 198 /* 199 * Weight 200 */ 201 RETERR(uint16_tobuffer(uri->weight, target)); 202 203 /* 204 * Target URI 205 */ 206 len = 255U; 207 region.base = uri->target; 208 region.length = uri->tgt_len; 209 while (region.length > 0) { 210 REQUIRE(len == 255U); 211 len = uint8_fromregion(®ion); 212 isc_region_consume(®ion, 1); 213 if (region.length < len) 214 return (ISC_R_UNEXPECTEDEND); 215 isc_region_consume(®ion, len); 216 } 217 218 return (mem_tobuffer(target, uri->target, uri->tgt_len)); 219} 220 221static inline isc_result_t 222tostruct_uri(ARGS_TOSTRUCT) { 223 dns_rdata_uri_t *uri = target; 224 isc_region_t sr; 225 226 REQUIRE(rdata->type == 256); 227 REQUIRE(target != NULL); 228 REQUIRE(rdata->length != 0); 229 230 uri->common.rdclass = rdata->rdclass; 231 uri->common.rdtype = rdata->type; 232 ISC_LINK_INIT(&uri->common, link); 233 234 dns_rdata_toregion(rdata, &sr); 235 236 /* 237 * Priority 238 */ 239 if (sr.length < 2) 240 return (ISC_R_UNEXPECTEDEND); 241 uri->priority = uint16_fromregion(&sr); 242 isc_region_consume(&sr, 2); 243 244 /* 245 * Weight 246 */ 247 if (sr.length < 2) 248 return (ISC_R_UNEXPECTEDEND); 249 uri->weight = uint16_fromregion(&sr); 250 isc_region_consume(&sr, 2); 251 252 /* 253 * Target URI 254 */ 255 uri->tgt_len = sr.length; 256 uri->target = mem_maybedup(mctx, sr.base, sr.length); 257 if (uri->target == NULL) 258 return (ISC_R_NOMEMORY); 259 260 uri->mctx = mctx; 261 return (ISC_R_SUCCESS); 262} 263 264static inline void 265freestruct_uri(ARGS_FREESTRUCT) { 266 dns_rdata_uri_t *uri = (dns_rdata_uri_t *) source; 267 268 REQUIRE(source != NULL); 269 REQUIRE(uri->common.rdtype == 256); 270 271 if (uri->mctx == NULL) 272 return; 273 274 if (uri->target != NULL) 275 isc_mem_free(uri->mctx, uri->target); 276 uri->mctx = NULL; 277} 278 279static inline isc_result_t 280additionaldata_uri(ARGS_ADDLDATA) { 281 REQUIRE(rdata->type == 256); 282 283 UNUSED(rdata); 284 UNUSED(add); 285 UNUSED(arg); 286 287 return (ISC_R_SUCCESS); 288} 289 290static inline isc_result_t 291digest_uri(ARGS_DIGEST) { 292 isc_region_t r; 293 294 REQUIRE(rdata->type == 256); 295 296 dns_rdata_toregion(rdata, &r); 297 298 return ((digest)(arg, &r)); 299} 300 301static inline isc_boolean_t 302checkowner_uri(ARGS_CHECKOWNER) { 303 304 REQUIRE(type == 256); 305 306 UNUSED(name); 307 UNUSED(type); 308 UNUSED(rdclass); 309 UNUSED(wildcard); 310 311 return (ISC_TRUE); 312} 313 314static inline isc_boolean_t 315checknames_uri(ARGS_CHECKNAMES) { 316 317 REQUIRE(rdata->type == 256); 318 319 UNUSED(rdata); 320 UNUSED(owner); 321 UNUSED(bad); 322 323 return (ISC_TRUE); 324} 325 326static inline int 327casecompare_uri(ARGS_COMPARE) { 328 return (compare_uri(rdata1, rdata2)); 329} 330 331#endif /* GENERIC_URI_256_C */ 332