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/* Copyright (C) 2018 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"
/*!
* \brief NSEC3 rdata constants.
*/
#define KNOT_NSEC3_ALGORITHM_SHA1 1
#define KNOT_NSEC3_FLAG_OPT_OUT 1
static inline
uint8_t knot_nsec3_alg(const knot_rdata_t *rdata)
{
assert(rdata);
return *(rdata->data);
}
static inline
uint8_t knot_nsec3_flags(const knot_rdata_t *rdata)
{
assert(rdata);
return *(rdata->data + 1);
}
static inline
uint16_t knot_nsec3_iters(const knot_rdata_t *rdata)
{
assert(rdata);
return knot_wire_read_u16(rdata->data + 2);
}
static inline
uint8_t knot_nsec3_salt_len(const knot_rdata_t *rdata)
{
assert(rdata);
return *(rdata->data + 4);
}
static inline
const uint8_t *knot_nsec3_salt(const knot_rdata_t *rdata)
{
assert(rdata);
return rdata->data + 5;
}
static inline
uint8_t knot_nsec3_next_len(const knot_rdata_t *rdata)
{
assert(rdata);
return *(rdata->data + 5 + knot_nsec3_salt_len(rdata));
}
static inline
const uint8_t *knot_nsec3_next(const knot_rdata_t *rdata)
{
assert(rdata);
return rdata->data + 6 + knot_nsec3_salt_len(rdata);
}
static inline
uint16_t knot_nsec3_bitmap_len(const knot_rdata_t *rdata)
{
assert(rdata);
return rdata->len - 6 - knot_nsec3_salt_len(rdata) - knot_nsec3_next_len(rdata);
}
static inline
const uint8_t *knot_nsec3_bitmap(const knot_rdata_t *rdata)
{
assert(rdata);
return rdata->data + 6 + knot_nsec3_salt_len(rdata) + knot_nsec3_next_len(rdata);
}
/*! @} */
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