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/* Copyright (C) 2021 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/*!
* \file
*
* \addtogroup rrtype
* @{
*/
#pragma once
#include "libknot/rdata.h"
#include "libknot/wire.h"
#define KNOT_ZONEMD_SCHEME_SIMPLE 1
#define KNOT_ZONEMD_ALGORITHM_SHA384 1
#define KNOT_ZONEMD_ALGORITHM_SHA512 2
static inline
uint32_t knot_zonemd_soa_serial(const knot_rdata_t *rdata)
{
assert(rdata);
return knot_wire_read_u32(rdata->data);
}
static inline
uint8_t knot_zonemd_scheme(const knot_rdata_t *rdata)
{
assert(rdata);
return *(rdata->data + 4);
}
static inline
uint8_t knot_zonemd_algorithm(const knot_rdata_t *rdata)
{
assert(rdata);
return *(rdata->data + 5);
}
static inline
size_t knot_zonemd_digest_size(const knot_rdata_t *rdata)
{
switch (knot_zonemd_algorithm(rdata)) {
case KNOT_ZONEMD_ALGORITHM_SHA384: return 48;
case KNOT_ZONEMD_ALGORITHM_SHA512: return 64;
default: return 0;
}
}
static inline
const uint8_t *knot_zonemd_digest(const knot_rdata_t *rdata)
{
assert(rdata);
return rdata->data + 6;
}
/*! @} */
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