/* $NetBSD: csync_62.c,v 1.3.4.1 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. */ /* RFC 7477 */ #ifndef RDATA_GENERIC_CSYNC_62_C #define RDATA_GENERIC_CSYNC_62_C #define RRTYPE_CSYNC_ATTRIBUTES 0 static isc_result_t fromtext_csync(ARGS_FROMTEXT) { isc_token_t token; REQUIRE(type == dns_rdatatype_csync); UNUSED(type); UNUSED(rdclass); UNUSED(origin); UNUSED(options); UNUSED(callbacks); /* Serial. */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); RETERR(uint32_tobuffer(token.value.as_ulong, target)); /* Flags. */ 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)); /* Type Map */ return (typemap_fromtext(lexer, target, true)); } static isc_result_t totext_csync(ARGS_TOTEXT) { unsigned long num; char buf[sizeof("0123456789")]; /* Also TYPE65535 */ isc_region_t sr; REQUIRE(rdata->type == dns_rdatatype_csync); REQUIRE(rdata->length >= 6); UNUSED(tctx); dns_rdata_toregion(rdata, &sr); num = uint32_fromregion(&sr); isc_region_consume(&sr, 4); snprintf(buf, sizeof(buf), "%lu", num); RETERR(str_totext(buf, target)); RETERR(str_totext(" ", target)); num = uint16_fromregion(&sr); isc_region_consume(&sr, 2); snprintf(buf, sizeof(buf), "%lu", num); RETERR(str_totext(buf, target)); /* * Don't leave a trailing space when there's no typemap present. */ if (sr.length > 0) { RETERR(str_totext(" ", target)); } return (typemap_totext(&sr, NULL, target)); } static isc_result_t fromwire_csync(ARGS_FROMWIRE) { isc_region_t sr; REQUIRE(type == dns_rdatatype_csync); UNUSED(type); UNUSED(rdclass); UNUSED(options); UNUSED(dctx); /* * Serial + Flags */ isc_buffer_activeregion(source, &sr); if (sr.length < 6) { return (ISC_R_UNEXPECTEDEND); } RETERR(mem_tobuffer(target, sr.base, 6)); isc_buffer_forward(source, 6); isc_region_consume(&sr, 6); RETERR(typemap_test(&sr, true)); RETERR(mem_tobuffer(target, sr.base, sr.length)); isc_buffer_forward(source, sr.length); return (ISC_R_SUCCESS); } static isc_result_t towire_csync(ARGS_TOWIRE) { REQUIRE(rdata->type == dns_rdatatype_csync); REQUIRE(rdata->length >= 6); UNUSED(cctx); return (mem_tobuffer(target, rdata->data, rdata->length)); } static int compare_csync(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_csync); REQUIRE(rdata1->length >= 6); REQUIRE(rdata2->length >= 6); dns_rdata_toregion(rdata1, &r1); dns_rdata_toregion(rdata2, &r2); return (isc_region_compare(&r1, &r2)); } static isc_result_t fromstruct_csync(ARGS_FROMSTRUCT) { dns_rdata_csync_t *csync = source; isc_region_t region; REQUIRE(type == dns_rdatatype_csync); REQUIRE(csync != NULL); REQUIRE(csync->common.rdtype == type); REQUIRE(csync->common.rdclass == rdclass); REQUIRE(csync->typebits != NULL || csync->len == 0); UNUSED(type); UNUSED(rdclass); RETERR(uint32_tobuffer(csync->serial, target)); RETERR(uint16_tobuffer(csync->flags, target)); region.base = csync->typebits; region.length = csync->len; RETERR(typemap_test(®ion, true)); return (mem_tobuffer(target, csync->typebits, csync->len)); } static isc_result_t tostruct_csync(ARGS_TOSTRUCT) { isc_region_t region; dns_rdata_csync_t *csync = target; REQUIRE(rdata->type == dns_rdatatype_csync); REQUIRE(csync != NULL); REQUIRE(rdata->length != 0); csync->common.rdclass = rdata->rdclass; csync->common.rdtype = rdata->type; ISC_LINK_INIT(&csync->common, link); dns_rdata_toregion(rdata, ®ion); csync->serial = uint32_fromregion(®ion); isc_region_consume(®ion, 4); csync->flags = uint16_fromregion(®ion); isc_region_consume(®ion, 2); csync->len = region.length; csync->typebits = mem_maybedup(mctx, region.base, region.length); if (csync->typebits == NULL) { goto cleanup; } csync->mctx = mctx; return (ISC_R_SUCCESS); cleanup: return (ISC_R_NOMEMORY); } static void freestruct_csync(ARGS_FREESTRUCT) { dns_rdata_csync_t *csync = source; REQUIRE(csync != NULL); REQUIRE(csync->common.rdtype == dns_rdatatype_csync); if (csync->mctx == NULL) { return; } if (csync->typebits != NULL) { isc_mem_free(csync->mctx, csync->typebits); } csync->mctx = NULL; } static isc_result_t additionaldata_csync(ARGS_ADDLDATA) { REQUIRE(rdata->type == dns_rdatatype_csync); UNUSED(rdata); UNUSED(owner); UNUSED(add); UNUSED(arg); return (ISC_R_SUCCESS); } static isc_result_t digest_csync(ARGS_DIGEST) { isc_region_t r; REQUIRE(rdata->type == dns_rdatatype_csync); dns_rdata_toregion(rdata, &r); return ((digest)(arg, &r)); } static bool checkowner_csync(ARGS_CHECKOWNER) { REQUIRE(type == dns_rdatatype_csync); UNUSED(name); UNUSED(type); UNUSED(rdclass); UNUSED(wildcard); return (true); } static bool checknames_csync(ARGS_CHECKNAMES) { REQUIRE(rdata->type == dns_rdatatype_csync); UNUSED(rdata); UNUSED(owner); UNUSED(bad); return (true); } static int casecompare_csync(ARGS_COMPARE) { isc_region_t region1; isc_region_t region2; REQUIRE(rdata1->type == rdata2->type); REQUIRE(rdata1->rdclass == rdata2->rdclass); REQUIRE(rdata1->type == dns_rdatatype_csync); REQUIRE(rdata1->length >= 6); REQUIRE(rdata2->length >= 6); dns_rdata_toregion(rdata1, ®ion1); dns_rdata_toregion(rdata2, ®ion2); return (isc_region_compare(®ion1, ®ion2)); } #endif /* RDATA_GENERIC_CSYNC_62_C */