1/* $NetBSD: eui64_109.c,v 1.8 2024/02/21 22:52:12 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_EUI64_109_C 17#define RDATA_GENERIC_EUI64_109_C 18 19#include <string.h> 20 21#define RRTYPE_EUI64_ATTRIBUTES (0) 22 23static isc_result_t 24fromtext_eui64(ARGS_FROMTEXT) { 25 isc_token_t token; 26 unsigned char eui64[8]; 27 unsigned int l0, l1, l2, l3, l4, l5, l6, l7; 28 int n; 29 30 REQUIRE(type == dns_rdatatype_eui64); 31 32 UNUSED(type); 33 UNUSED(rdclass); 34 UNUSED(origin); 35 UNUSED(options); 36 UNUSED(callbacks); 37 38 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, 39 false)); 40 n = sscanf(DNS_AS_STR(token), "%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x", &l0, 41 &l1, &l2, &l3, &l4, &l5, &l6, &l7); 42 if (n != 8 || l0 > 255U || l1 > 255U || l2 > 255U || l3 > 255U || 43 l4 > 255U || l5 > 255U || l6 > 255U || l7 > 255U) 44 { 45 return (DNS_R_BADEUI); 46 } 47 48 eui64[0] = l0; 49 eui64[1] = l1; 50 eui64[2] = l2; 51 eui64[3] = l3; 52 eui64[4] = l4; 53 eui64[5] = l5; 54 eui64[6] = l6; 55 eui64[7] = l7; 56 return (mem_tobuffer(target, eui64, sizeof(eui64))); 57} 58 59static isc_result_t 60totext_eui64(ARGS_TOTEXT) { 61 char buf[sizeof("xx-xx-xx-xx-xx-xx-xx-xx")]; 62 63 REQUIRE(rdata->type == dns_rdatatype_eui64); 64 REQUIRE(rdata->length == 8); 65 66 UNUSED(tctx); 67 68 (void)snprintf( 69 buf, sizeof(buf), "%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x", 70 rdata->data[0], rdata->data[1], rdata->data[2], rdata->data[3], 71 rdata->data[4], rdata->data[5], rdata->data[6], rdata->data[7]); 72 return (str_totext(buf, target)); 73} 74 75static isc_result_t 76fromwire_eui64(ARGS_FROMWIRE) { 77 isc_region_t sregion; 78 79 REQUIRE(type == dns_rdatatype_eui64); 80 81 UNUSED(type); 82 UNUSED(options); 83 UNUSED(rdclass); 84 UNUSED(dctx); 85 86 isc_buffer_activeregion(source, &sregion); 87 if (sregion.length != 8) { 88 return (DNS_R_FORMERR); 89 } 90 isc_buffer_forward(source, sregion.length); 91 return (mem_tobuffer(target, sregion.base, sregion.length)); 92} 93 94static isc_result_t 95towire_eui64(ARGS_TOWIRE) { 96 REQUIRE(rdata->type == dns_rdatatype_eui64); 97 REQUIRE(rdata->length == 8); 98 99 UNUSED(cctx); 100 101 return (mem_tobuffer(target, rdata->data, rdata->length)); 102} 103 104static int 105compare_eui64(ARGS_COMPARE) { 106 isc_region_t region1; 107 isc_region_t region2; 108 109 REQUIRE(rdata1->type == rdata2->type); 110 REQUIRE(rdata1->rdclass == rdata2->rdclass); 111 REQUIRE(rdata1->type == dns_rdatatype_eui64); 112 REQUIRE(rdata1->length == 8); 113 REQUIRE(rdata2->length == 8); 114 115 dns_rdata_toregion(rdata1, ®ion1); 116 dns_rdata_toregion(rdata2, ®ion2); 117 return (isc_region_compare(®ion1, ®ion2)); 118} 119 120static isc_result_t 121fromstruct_eui64(ARGS_FROMSTRUCT) { 122 dns_rdata_eui64_t *eui64 = source; 123 124 REQUIRE(type == dns_rdatatype_eui64); 125 REQUIRE(eui64 != NULL); 126 REQUIRE(eui64->common.rdtype == type); 127 REQUIRE(eui64->common.rdclass == rdclass); 128 129 UNUSED(type); 130 UNUSED(rdclass); 131 132 return (mem_tobuffer(target, eui64->eui64, sizeof(eui64->eui64))); 133} 134 135static isc_result_t 136tostruct_eui64(ARGS_TOSTRUCT) { 137 dns_rdata_eui64_t *eui64 = target; 138 139 REQUIRE(rdata->type == dns_rdatatype_eui64); 140 REQUIRE(eui64 != NULL); 141 REQUIRE(rdata->length == 8); 142 143 UNUSED(mctx); 144 145 eui64->common.rdclass = rdata->rdclass; 146 eui64->common.rdtype = rdata->type; 147 ISC_LINK_INIT(&eui64->common, link); 148 149 memmove(eui64->eui64, rdata->data, rdata->length); 150 return (ISC_R_SUCCESS); 151} 152 153static void 154freestruct_eui64(ARGS_FREESTRUCT) { 155 dns_rdata_eui64_t *eui64 = source; 156 157 REQUIRE(eui64 != NULL); 158 REQUIRE(eui64->common.rdtype == dns_rdatatype_eui64); 159 160 return; 161} 162 163static isc_result_t 164additionaldata_eui64(ARGS_ADDLDATA) { 165 REQUIRE(rdata->type == dns_rdatatype_eui64); 166 REQUIRE(rdata->length == 8); 167 168 UNUSED(rdata); 169 UNUSED(owner); 170 UNUSED(add); 171 UNUSED(arg); 172 173 return (ISC_R_SUCCESS); 174} 175 176static isc_result_t 177digest_eui64(ARGS_DIGEST) { 178 isc_region_t r; 179 180 REQUIRE(rdata->type == dns_rdatatype_eui64); 181 REQUIRE(rdata->length == 8); 182 183 dns_rdata_toregion(rdata, &r); 184 185 return ((digest)(arg, &r)); 186} 187 188static bool 189checkowner_eui64(ARGS_CHECKOWNER) { 190 REQUIRE(type == dns_rdatatype_eui64); 191 192 UNUSED(name); 193 UNUSED(type); 194 UNUSED(rdclass); 195 UNUSED(wildcard); 196 197 return (true); 198} 199 200static bool 201checknames_eui64(ARGS_CHECKNAMES) { 202 REQUIRE(rdata->type == dns_rdatatype_eui64); 203 REQUIRE(rdata->length == 8); 204 205 UNUSED(rdata); 206 UNUSED(owner); 207 UNUSED(bad); 208 209 return (true); 210} 211 212static int 213casecompare_eui64(ARGS_COMPARE) { 214 return (compare_eui64(rdata1, rdata2)); 215} 216 217#endif /* RDATA_GENERIC_EUI64_109_C */ 218