1 /* $NetBSD: sink_40.c,v 1.7 2022/09/23 12:15:31 christos Exp $ */ 2 3 /* 4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 5 * 6 * SPDX-License-Identifier: MPL-2.0 7 * 8 * This Source Code Form is subject to the terms of the Mozilla Public 9 * License, v. 2.0. If a copy of the MPL was not distributed with this 10 * file, you can obtain one at https://mozilla.org/MPL/2.0/. 11 * 12 * See the COPYRIGHT file distributed with this work for additional 13 * information regarding copyright ownership. 14 */ 15 16 #ifndef RDATA_GENERIC_SINK_40_C 17 #define RDATA_GENERIC_SINK_40_C 18 19 #include <dst/dst.h> 20 21 #define RRTYPE_SINK_ATTRIBUTES (0) 22 23 static isc_result_t 24 fromtext_sink(ARGS_FROMTEXT) { 25 isc_token_t token; 26 27 REQUIRE(type == dns_rdatatype_sink); 28 29 UNUSED(type); 30 UNUSED(rdclass); 31 UNUSED(origin); 32 UNUSED(options); 33 UNUSED(callbacks); 34 35 /* meaning */ 36 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 37 false)); 38 if (token.value.as_ulong > 0xffU) { 39 RETTOK(ISC_R_RANGE); 40 } 41 RETERR(uint8_tobuffer(token.value.as_ulong, target)); 42 43 /* coding */ 44 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 45 false)); 46 if (token.value.as_ulong > 0xffU) { 47 RETTOK(ISC_R_RANGE); 48 } 49 RETERR(uint8_tobuffer(token.value.as_ulong, target)); 50 51 /* subcoding */ 52 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 53 false)); 54 if (token.value.as_ulong > 0xffU) { 55 RETTOK(ISC_R_RANGE); 56 } 57 RETERR(uint8_tobuffer(token.value.as_ulong, target)); 58 59 return (isc_base64_tobuffer(lexer, target, -1)); 60 } 61 62 static isc_result_t 63 totext_sink(ARGS_TOTEXT) { 64 isc_region_t sr; 65 char buf[sizeof("255 255 255")]; 66 uint8_t meaning, coding, subcoding; 67 68 REQUIRE(rdata->type == dns_rdatatype_sink); 69 REQUIRE(rdata->length >= 3); 70 71 dns_rdata_toregion(rdata, &sr); 72 73 /* Meaning, Coding and Subcoding */ 74 meaning = uint8_fromregion(&sr); 75 isc_region_consume(&sr, 1); 76 coding = uint8_fromregion(&sr); 77 isc_region_consume(&sr, 1); 78 subcoding = uint8_fromregion(&sr); 79 isc_region_consume(&sr, 1); 80 snprintf(buf, sizeof(buf), "%u %u %u", meaning, coding, subcoding); 81 RETERR(str_totext(buf, target)); 82 83 if (sr.length == 0U) { 84 return (ISC_R_SUCCESS); 85 } 86 87 /* data */ 88 if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { 89 RETERR(str_totext(" (", target)); 90 } 91 92 RETERR(str_totext(tctx->linebreak, target)); 93 94 if (tctx->width == 0) { /* No splitting */ 95 RETERR(isc_base64_totext(&sr, 60, "", target)); 96 } else { 97 RETERR(isc_base64_totext(&sr, tctx->width - 2, tctx->linebreak, 98 target)); 99 } 100 101 if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { 102 RETERR(str_totext(" )", target)); 103 } 104 105 return (ISC_R_SUCCESS); 106 } 107 108 static isc_result_t 109 fromwire_sink(ARGS_FROMWIRE) { 110 isc_region_t sr; 111 112 REQUIRE(type == dns_rdatatype_sink); 113 114 UNUSED(type); 115 UNUSED(rdclass); 116 UNUSED(dctx); 117 UNUSED(options); 118 119 isc_buffer_activeregion(source, &sr); 120 if (sr.length < 3) { 121 return (ISC_R_UNEXPECTEDEND); 122 } 123 124 RETERR(mem_tobuffer(target, sr.base, sr.length)); 125 isc_buffer_forward(source, sr.length); 126 return (ISC_R_SUCCESS); 127 } 128 129 static isc_result_t 130 towire_sink(ARGS_TOWIRE) { 131 REQUIRE(rdata->type == dns_rdatatype_sink); 132 REQUIRE(rdata->length >= 3); 133 134 UNUSED(cctx); 135 136 return (mem_tobuffer(target, rdata->data, rdata->length)); 137 } 138 139 static int 140 compare_sink(ARGS_COMPARE) { 141 isc_region_t r1; 142 isc_region_t r2; 143 144 REQUIRE(rdata1->type == rdata2->type); 145 REQUIRE(rdata1->rdclass == rdata2->rdclass); 146 REQUIRE(rdata1->type == dns_rdatatype_sink); 147 REQUIRE(rdata1->length >= 3); 148 REQUIRE(rdata2->length >= 3); 149 150 dns_rdata_toregion(rdata1, &r1); 151 dns_rdata_toregion(rdata2, &r2); 152 return (isc_region_compare(&r1, &r2)); 153 } 154 155 static isc_result_t 156 fromstruct_sink(ARGS_FROMSTRUCT) { 157 dns_rdata_sink_t *sink = source; 158 159 REQUIRE(type == dns_rdatatype_sink); 160 REQUIRE(sink != NULL); 161 REQUIRE(sink->common.rdtype == type); 162 REQUIRE(sink->common.rdclass == rdclass); 163 164 UNUSED(type); 165 UNUSED(rdclass); 166 167 /* Meaning */ 168 RETERR(uint8_tobuffer(sink->meaning, target)); 169 170 /* Coding */ 171 RETERR(uint8_tobuffer(sink->coding, target)); 172 173 /* Subcoding */ 174 RETERR(uint8_tobuffer(sink->subcoding, target)); 175 176 /* Data */ 177 return (mem_tobuffer(target, sink->data, sink->datalen)); 178 } 179 180 static isc_result_t 181 tostruct_sink(ARGS_TOSTRUCT) { 182 dns_rdata_sink_t *sink = target; 183 isc_region_t sr; 184 185 REQUIRE(rdata->type == dns_rdatatype_sink); 186 REQUIRE(sink != NULL); 187 REQUIRE(rdata->length >= 3); 188 189 sink->common.rdclass = rdata->rdclass; 190 sink->common.rdtype = rdata->type; 191 ISC_LINK_INIT(&sink->common, link); 192 193 dns_rdata_toregion(rdata, &sr); 194 195 /* Meaning */ 196 if (sr.length < 1) { 197 return (ISC_R_UNEXPECTEDEND); 198 } 199 sink->meaning = uint8_fromregion(&sr); 200 isc_region_consume(&sr, 1); 201 202 /* Coding */ 203 if (sr.length < 1) { 204 return (ISC_R_UNEXPECTEDEND); 205 } 206 sink->coding = uint8_fromregion(&sr); 207 isc_region_consume(&sr, 1); 208 209 /* Subcoding */ 210 if (sr.length < 1) { 211 return (ISC_R_UNEXPECTEDEND); 212 } 213 sink->subcoding = uint8_fromregion(&sr); 214 isc_region_consume(&sr, 1); 215 216 /* Data */ 217 sink->datalen = sr.length; 218 sink->data = mem_maybedup(mctx, sr.base, sink->datalen); 219 if (sink->data == NULL) { 220 return (ISC_R_NOMEMORY); 221 } 222 223 sink->mctx = mctx; 224 return (ISC_R_SUCCESS); 225 } 226 227 static void 228 freestruct_sink(ARGS_FREESTRUCT) { 229 dns_rdata_sink_t *sink = (dns_rdata_sink_t *)source; 230 231 REQUIRE(sink != NULL); 232 REQUIRE(sink->common.rdtype == dns_rdatatype_sink); 233 234 if (sink->mctx == NULL) { 235 return; 236 } 237 238 if (sink->data != NULL) { 239 isc_mem_free(sink->mctx, sink->data); 240 } 241 sink->mctx = NULL; 242 } 243 244 static isc_result_t 245 additionaldata_sink(ARGS_ADDLDATA) { 246 REQUIRE(rdata->type == dns_rdatatype_sink); 247 248 UNUSED(rdata); 249 UNUSED(add); 250 UNUSED(arg); 251 252 return (ISC_R_SUCCESS); 253 } 254 255 static isc_result_t 256 digest_sink(ARGS_DIGEST) { 257 isc_region_t r; 258 259 REQUIRE(rdata->type == dns_rdatatype_sink); 260 261 dns_rdata_toregion(rdata, &r); 262 263 return ((digest)(arg, &r)); 264 } 265 266 static bool 267 checkowner_sink(ARGS_CHECKOWNER) { 268 REQUIRE(type == dns_rdatatype_sink); 269 270 UNUSED(name); 271 UNUSED(type); 272 UNUSED(rdclass); 273 UNUSED(wildcard); 274 275 return (true); 276 } 277 278 static bool 279 checknames_sink(ARGS_CHECKNAMES) { 280 REQUIRE(rdata->type == dns_rdatatype_sink); 281 282 UNUSED(rdata); 283 UNUSED(owner); 284 UNUSED(bad); 285 286 return (true); 287 } 288 289 static int 290 casecompare_sink(ARGS_COMPARE) { 291 return (compare_sink(rdata1, rdata2)); 292 } 293 #endif /* RDATA_GENERIC_SINK_40_C */ 294