/* $NetBSD: tlsa_52.c,v 1.9.2.1 2024/02/25 15:47:05 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. */ /* rfc6698.txt */ #ifndef RDATA_GENERIC_TLSA_52_C #define RDATA_GENERIC_TLSA_52_C #define RRTYPE_TLSA_ATTRIBUTES 0 static isc_result_t generic_fromtext_tlsa(ARGS_FROMTEXT) { isc_token_t token; UNUSED(type); UNUSED(rdclass); UNUSED(origin); UNUSED(options); UNUSED(callbacks); /* * Certificate Usage. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); if (token.value.as_ulong > 0xffU) { RETTOK(ISC_R_RANGE); } RETERR(uint8_tobuffer(token.value.as_ulong, target)); /* * Selector. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); if (token.value.as_ulong > 0xffU) { RETTOK(ISC_R_RANGE); } RETERR(uint8_tobuffer(token.value.as_ulong, target)); /* * Matching type. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); if (token.value.as_ulong > 0xffU) { RETTOK(ISC_R_RANGE); } RETERR(uint8_tobuffer(token.value.as_ulong, target)); /* * Certificate Association Data. */ return (isc_hex_tobuffer(lexer, target, -2)); } static isc_result_t generic_totext_tlsa(ARGS_TOTEXT) { isc_region_t sr; char buf[sizeof("64000 ")]; unsigned int n; REQUIRE(rdata->length != 0); UNUSED(tctx); dns_rdata_toregion(rdata, &sr); /* * Certificate Usage. */ n = uint8_fromregion(&sr); isc_region_consume(&sr, 1); snprintf(buf, sizeof(buf), "%u ", n); RETERR(str_totext(buf, target)); /* * Selector. */ n = uint8_fromregion(&sr); isc_region_consume(&sr, 1); snprintf(buf, sizeof(buf), "%u ", n); RETERR(str_totext(buf, target)); /* * Matching type. */ n = uint8_fromregion(&sr); isc_region_consume(&sr, 1); snprintf(buf, sizeof(buf), "%u", n); RETERR(str_totext(buf, target)); /* * Certificate Association Data. */ 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_hex_totext(&sr, 0, "", target)); } else { RETERR(isc_hex_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 generic_fromwire_tlsa(ARGS_FROMWIRE) { isc_region_t sr; UNUSED(type); UNUSED(rdclass); UNUSED(dctx); UNUSED(options); isc_buffer_activeregion(source, &sr); /* Usage(1), Selector(1), Type(1), Data(1+) */ if (sr.length < 4) { return (ISC_R_UNEXPECTEDEND); } isc_buffer_forward(source, sr.length); return (mem_tobuffer(target, sr.base, sr.length)); } static isc_result_t fromtext_tlsa(ARGS_FROMTEXT) { REQUIRE(type == dns_rdatatype_tlsa); return (generic_fromtext_tlsa(CALL_FROMTEXT)); } static isc_result_t totext_tlsa(ARGS_TOTEXT) { REQUIRE(rdata->type == dns_rdatatype_tlsa); return (generic_totext_tlsa(CALL_TOTEXT)); } static isc_result_t fromwire_tlsa(ARGS_FROMWIRE) { REQUIRE(type == dns_rdatatype_tlsa); return (generic_fromwire_tlsa(CALL_FROMWIRE)); } static isc_result_t towire_tlsa(ARGS_TOWIRE) { isc_region_t sr; REQUIRE(rdata->type == dns_rdatatype_tlsa); REQUIRE(rdata->length != 0); UNUSED(cctx); dns_rdata_toregion(rdata, &sr); return (mem_tobuffer(target, sr.base, sr.length)); } static int compare_tlsa(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_tlsa); 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 generic_fromstruct_tlsa(ARGS_FROMSTRUCT) { dns_rdata_tlsa_t *tlsa = source; REQUIRE(tlsa != NULL); REQUIRE(tlsa->common.rdtype == type); REQUIRE(tlsa->common.rdclass == rdclass); UNUSED(type); UNUSED(rdclass); RETERR(uint8_tobuffer(tlsa->usage, target)); RETERR(uint8_tobuffer(tlsa->selector, target)); RETERR(uint8_tobuffer(tlsa->match, target)); return (mem_tobuffer(target, tlsa->data, tlsa->length)); } static isc_result_t generic_tostruct_tlsa(ARGS_TOSTRUCT) { dns_rdata_tlsa_t *tlsa = target; isc_region_t region; REQUIRE(tlsa != NULL); REQUIRE(rdata->length != 0); REQUIRE(tlsa != NULL); REQUIRE(tlsa->common.rdclass == rdata->rdclass); REQUIRE(tlsa->common.rdtype == rdata->type); REQUIRE(!ISC_LINK_LINKED(&tlsa->common, link)); dns_rdata_toregion(rdata, ®ion); tlsa->usage = uint8_fromregion(®ion); isc_region_consume(®ion, 1); tlsa->selector = uint8_fromregion(®ion); isc_region_consume(®ion, 1); tlsa->match = uint8_fromregion(®ion); isc_region_consume(®ion, 1); tlsa->length = region.length; tlsa->data = mem_maybedup(mctx, region.base, region.length); if (tlsa->data == NULL) { return (ISC_R_NOMEMORY); } tlsa->mctx = mctx; return (ISC_R_SUCCESS); } static void generic_freestruct_tlsa(ARGS_FREESTRUCT) { dns_rdata_tlsa_t *tlsa = source; REQUIRE(tlsa != NULL); if (tlsa->mctx == NULL) { return; } if (tlsa->data != NULL) { isc_mem_free(tlsa->mctx, tlsa->data); } tlsa->mctx = NULL; } static isc_result_t fromstruct_tlsa(ARGS_FROMSTRUCT) { REQUIRE(type == dns_rdatatype_tlsa); return (generic_fromstruct_tlsa(CALL_FROMSTRUCT)); } static isc_result_t tostruct_tlsa(ARGS_TOSTRUCT) { dns_rdata_tlsa_t *tlsa = target; REQUIRE(rdata->type == dns_rdatatype_tlsa); REQUIRE(tlsa != NULL); tlsa->common.rdclass = rdata->rdclass; tlsa->common.rdtype = rdata->type; ISC_LINK_INIT(&tlsa->common, link); return (generic_tostruct_tlsa(CALL_TOSTRUCT)); } static void freestruct_tlsa(ARGS_FREESTRUCT) { dns_rdata_tlsa_t *tlsa = source; REQUIRE(tlsa != NULL); REQUIRE(tlsa->common.rdtype == dns_rdatatype_tlsa); generic_freestruct_tlsa(source); } static isc_result_t additionaldata_tlsa(ARGS_ADDLDATA) { REQUIRE(rdata->type == dns_rdatatype_tlsa); UNUSED(rdata); UNUSED(owner); UNUSED(add); UNUSED(arg); return (ISC_R_SUCCESS); } static isc_result_t digest_tlsa(ARGS_DIGEST) { isc_region_t r; REQUIRE(rdata->type == dns_rdatatype_tlsa); dns_rdata_toregion(rdata, &r); return ((digest)(arg, &r)); } static bool checkowner_tlsa(ARGS_CHECKOWNER) { REQUIRE(type == dns_rdatatype_tlsa); UNUSED(name); UNUSED(type); UNUSED(rdclass); UNUSED(wildcard); return (true); } static bool checknames_tlsa(ARGS_CHECKNAMES) { REQUIRE(rdata->type == dns_rdatatype_tlsa); UNUSED(rdata); UNUSED(owner); UNUSED(bad); return (true); } static int casecompare_tlsa(ARGS_COMPARE) { return (compare_tlsa(rdata1, rdata2)); } #endif /* RDATA_GENERIC_TLSA_52_C */