/* $NetBSD: cert_37.c,v 1.4.4.1 2024/02/29 12:34:41 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ /* RFC2538 */ #ifndef RDATA_GENERIC_CERT_37_C #define RDATA_GENERIC_CERT_37_C #define RRTYPE_CERT_ATTRIBUTES (0) static isc_result_t fromtext_cert(ARGS_FROMTEXT) { isc_token_t token; dns_secalg_t secalg; dns_cert_t cert; REQUIRE(type == dns_rdatatype_cert); UNUSED(type); UNUSED(rdclass); UNUSED(origin); UNUSED(options); UNUSED(callbacks); /* * Cert type. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, false)); RETTOK(dns_cert_fromtext(&cert, &token.value.as_textregion)); RETERR(uint16_tobuffer(cert, target)); /* * Key tag. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); if (token.value.as_ulong > 0xffffU) { RETTOK(ISC_R_RANGE); } RETERR(uint16_tobuffer(token.value.as_ulong, target)); /* * Algorithm. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, false)); RETTOK(dns_secalg_fromtext(&secalg, &token.value.as_textregion)); RETERR(mem_tobuffer(target, &secalg, 1)); return (isc_base64_tobuffer(lexer, target, -2)); } static isc_result_t totext_cert(ARGS_TOTEXT) { isc_region_t sr; char buf[sizeof("64000 ")]; unsigned int n; REQUIRE(rdata->type == dns_rdatatype_cert); REQUIRE(rdata->length != 0); UNUSED(tctx); dns_rdata_toregion(rdata, &sr); /* * Type. */ n = uint16_fromregion(&sr); isc_region_consume(&sr, 2); RETERR(dns_cert_totext((dns_cert_t)n, target)); RETERR(str_totext(" ", target)); /* * Key tag. */ n = uint16_fromregion(&sr); isc_region_consume(&sr, 2); snprintf(buf, sizeof(buf), "%u ", n); RETERR(str_totext(buf, target)); /* * Algorithm. */ RETERR(dns_secalg_totext(sr.base[0], target)); isc_region_consume(&sr, 1); /* * Cert. */ if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { RETERR(str_totext(" (", target)); } RETERR(str_totext(tctx->linebreak, target)); if (tctx->width == 0) { /* No splitting */ RETERR(isc_base64_totext(&sr, 60, "", target)); } else { RETERR(isc_base64_totext(&sr, tctx->width - 2, tctx->linebreak, target)); } if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0) { RETERR(str_totext(" )", target)); } return (ISC_R_SUCCESS); } static isc_result_t fromwire_cert(ARGS_FROMWIRE) { isc_region_t sr; REQUIRE(type == dns_rdatatype_cert); UNUSED(type); UNUSED(rdclass); UNUSED(dctx); UNUSED(options); isc_buffer_activeregion(source, &sr); if (sr.length < 6) { return (ISC_R_UNEXPECTEDEND); } isc_buffer_forward(source, sr.length); return (mem_tobuffer(target, sr.base, sr.length)); } static isc_result_t towire_cert(ARGS_TOWIRE) { isc_region_t sr; REQUIRE(rdata->type == dns_rdatatype_cert); REQUIRE(rdata->length != 0); UNUSED(cctx); dns_rdata_toregion(rdata, &sr); return (mem_tobuffer(target, sr.base, sr.length)); } static int compare_cert(ARGS_COMPARE) { isc_region_t r1; isc_region_t r2; REQUIRE(rdata1->type == rdata2->type); REQUIRE(rdata1->rdclass == rdata2->rdclass); REQUIRE(rdata1->type == dns_rdatatype_cert); REQUIRE(rdata1->length != 0); REQUIRE(rdata2->length != 0); dns_rdata_toregion(rdata1, &r1); dns_rdata_toregion(rdata2, &r2); return (isc_region_compare(&r1, &r2)); } static isc_result_t fromstruct_cert(ARGS_FROMSTRUCT) { dns_rdata_cert_t *cert = source; REQUIRE(type == dns_rdatatype_cert); REQUIRE(cert != NULL); REQUIRE(cert->common.rdtype == type); REQUIRE(cert->common.rdclass == rdclass); UNUSED(type); UNUSED(rdclass); RETERR(uint16_tobuffer(cert->type, target)); RETERR(uint16_tobuffer(cert->key_tag, target)); RETERR(uint8_tobuffer(cert->algorithm, target)); return (mem_tobuffer(target, cert->certificate, cert->length)); } static isc_result_t tostruct_cert(ARGS_TOSTRUCT) { dns_rdata_cert_t *cert = target; isc_region_t region; REQUIRE(rdata->type == dns_rdatatype_cert); REQUIRE(cert != NULL); REQUIRE(rdata->length != 0); cert->common.rdclass = rdata->rdclass; cert->common.rdtype = rdata->type; ISC_LINK_INIT(&cert->common, link); dns_rdata_toregion(rdata, ®ion); cert->type = uint16_fromregion(®ion); isc_region_consume(®ion, 2); cert->key_tag = uint16_fromregion(®ion); isc_region_consume(®ion, 2); cert->algorithm = uint8_fromregion(®ion); isc_region_consume(®ion, 1); cert->length = region.length; cert->certificate = mem_maybedup(mctx, region.base, region.length); if (cert->certificate == NULL) { return (ISC_R_NOMEMORY); } cert->mctx = mctx; return (ISC_R_SUCCESS); } static void freestruct_cert(ARGS_FREESTRUCT) { dns_rdata_cert_t *cert = source; REQUIRE(cert != NULL); REQUIRE(cert->common.rdtype == dns_rdatatype_cert); if (cert->mctx == NULL) { return; } if (cert->certificate != NULL) { isc_mem_free(cert->mctx, cert->certificate); } cert->mctx = NULL; } static isc_result_t additionaldata_cert(ARGS_ADDLDATA) { REQUIRE(rdata->type == dns_rdatatype_cert); UNUSED(rdata); UNUSED(owner); UNUSED(add); UNUSED(arg); return (ISC_R_SUCCESS); } static isc_result_t digest_cert(ARGS_DIGEST) { isc_region_t r; REQUIRE(rdata->type == dns_rdatatype_cert); dns_rdata_toregion(rdata, &r); return ((digest)(arg, &r)); } static bool checkowner_cert(ARGS_CHECKOWNER) { REQUIRE(type == dns_rdatatype_cert); UNUSED(name); UNUSED(type); UNUSED(rdclass); UNUSED(wildcard); return (true); } static bool checknames_cert(ARGS_CHECKNAMES) { REQUIRE(rdata->type == dns_rdatatype_cert); UNUSED(rdata); UNUSED(owner); UNUSED(bad); return (true); } static int casecompare_cert(ARGS_COMPARE) { return (compare_cert(rdata1, rdata2)); } #endif /* RDATA_GENERIC_CERT_37_C */