/* $NetBSD: key.c,v 1.4.4.1 2024/02/29 12:34:31 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. */ #include #include #include #include #include #include #include #include #include "dst_internal.h" uint16_t dst_region_computeid(const isc_region_t *source) { uint32_t ac; const unsigned char *p; int size; REQUIRE(source != NULL); REQUIRE(source->length >= 4); p = source->base; size = source->length; for (ac = 0; size > 1; size -= 2, p += 2) { ac += ((*p) << 8) + *(p + 1); } if (size > 0) { ac += ((*p) << 8); } ac += (ac >> 16) & 0xffff; return ((uint16_t)(ac & 0xffff)); } uint16_t dst_region_computerid(const isc_region_t *source) { uint32_t ac; const unsigned char *p; int size; REQUIRE(source != NULL); REQUIRE(source->length >= 4); p = source->base; size = source->length; ac = ((*p) << 8) + *(p + 1); ac |= DNS_KEYFLAG_REVOKE; for (size -= 2, p += 2; size > 1; size -= 2, p += 2) { ac += ((*p) << 8) + *(p + 1); } if (size > 0) { ac += ((*p) << 8); } ac += (ac >> 16) & 0xffff; return ((uint16_t)(ac & 0xffff)); } dns_name_t * dst_key_name(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_name); } unsigned int dst_key_size(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_size); } unsigned int dst_key_proto(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_proto); } unsigned int dst_key_alg(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_alg); } uint32_t dst_key_flags(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_flags); } dns_keytag_t dst_key_id(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_id); } dns_keytag_t dst_key_rid(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_rid); } dns_rdataclass_t dst_key_class(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_class); } bool dst_key_iszonekey(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); if ((key->key_flags & DNS_KEYTYPE_NOAUTH) != 0) { return (false); } if ((key->key_flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE) { return (false); } if (key->key_proto != DNS_KEYPROTO_DNSSEC && key->key_proto != DNS_KEYPROTO_ANY) { return (false); } return (true); } bool dst_key_isnullkey(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); if ((key->key_flags & DNS_KEYFLAG_TYPEMASK) != DNS_KEYTYPE_NOKEY) { return (false); } if ((key->key_flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE) { return (false); } if (key->key_proto != DNS_KEYPROTO_DNSSEC && key->key_proto != DNS_KEYPROTO_ANY) { return (false); } return (true); } void dst_key_setbits(dst_key_t *key, uint16_t bits) { unsigned int maxbits; REQUIRE(VALID_KEY(key)); if (bits != 0) { RUNTIME_CHECK(dst_key_sigsize(key, &maxbits) == ISC_R_SUCCESS); maxbits *= 8; REQUIRE(bits <= maxbits); } key->key_bits = bits; } uint16_t dst_key_getbits(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_bits); } void dst_key_setttl(dst_key_t *key, dns_ttl_t ttl) { REQUIRE(VALID_KEY(key)); key->key_ttl = ttl; } dns_ttl_t dst_key_getttl(const dst_key_t *key) { REQUIRE(VALID_KEY(key)); return (key->key_ttl); } /*! \file */