8bd431a251
the addition of support for ECS client information in DLZ
modules omitted some necessary changes to build modules
in contrib.
(cherry picked from commit d3fed6f400)
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#pragma once
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#include <inttypes.h>
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#include <isc/lang.h>
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#include <isc/netaddr.h>
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#include <isc/types.h>
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#include <dns/rdatatype.h>
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#include <dns/types.h>
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/*%
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* Maximum scope values for IPv4 and IPv6.
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*/
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#ifndef ECS_MAX_V4_SCOPE
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#define ECS_MAX_V4_SCOPE 24
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#endif
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#ifndef ECS_MAX_V6_SCOPE
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#define ECS_MAX_V6_SCOPE 56
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#endif
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/*
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* Any updates to this structure should also be applied in
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* contrib/modules/dlz/dlz_minmal.h.
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*/
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struct dns_ecs {
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isc_netaddr_t addr;
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uint8_t source;
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uint8_t scope;
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};
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/* <address>/NNN/NNN */
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#define DNS_ECS_FORMATSIZE (ISC_NETADDR_FORMATSIZE + 9)
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ISC_LANG_BEGINDECLS
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void
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dns_ecs_init(dns_ecs_t *ecs);
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/*%<
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* Initialize a DNS ECS structure.
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*
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* Requires:
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* \li 'ecs' is not NULL and points to a valid dns_ecs structure.
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*/
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bool
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dns_ecs_equals(const dns_ecs_t *ecs1, const dns_ecs_t *ecs2);
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/*%<
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* Determine whether two ECS address prefixes are equal (except the
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* scope prefix-length field).
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*
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* 'ecs1->source' must exactly match 'ecs2->source'; the address families
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* must match; and the first 'ecs1->source' bits of the addresses must
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* match. Subsequent address bits and the 'scope' values are ignored.
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*/
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void
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dns_ecs_format(const dns_ecs_t *ecs, char *buf, size_t size);
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/*%<
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* Format an ECS record as text. Result is guaranteed to be null-terminated.
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*
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* Requires:
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* \li 'ecs' is not NULL.
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* \li 'buf' is not NULL.
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* \li 'size' is at least DNS_ECS_FORMATSIZE
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*/
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ISC_LANG_ENDDECLS
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