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/* Copyright (C) 2011 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 <http://www.gnu.org/licenses/>.
*/
/*!
* \file zone-keys.h
*
* \author Jan Vcelak <jan.vcelak@nic.cz>
* \author Lubos Slovak <lubos.slovak@nic.cz>
* \author Jan Kadlec <jan.kadlec@nic.cz>
*
* \brief Loading of zone keys.
*
* \addtogroup dnssec
* @{
*/
#ifndef _KNOT_DNSSEC_ZONE_KEYS_H_
#define _KNOT_DNSSEC_ZONE_KEYS_H_
#include <stdbool.h>
#include <stdint.h>
#include "libknot/dname.h"
#include "libknot/dnssec/sign.h"
/*!
* Maximal count of active keys for one zone.
*/
#define KNOT_MAX_ZONE_KEYS 8
typedef struct {
knot_dnssec_key_t dnssec_key;
knot_dnssec_sign_context_t *context;
uint32_t next_event; //!< Timestamp of next key event.
bool is_ksk; //!< Is KSK key.
bool is_public; //!< Currently in zone.
bool is_active; //!< Currently used for signing.
} knot_zone_key_t;
/*!
* \brief Keys used for zone signing.
*/
typedef struct {
unsigned count;
knot_zone_key_t keys[KNOT_MAX_ZONE_KEYS];
} knot_zone_keys_t;
/*!
* \brief Load zone keys from a key directory.
*
* \param keydir_name Name of the directory with DNSSEC keys.
* \param zone_name Domain name of the zone.
* \param nsec3_enabled NSEC3 enabled for zone (determines allowed algorithms).
* \param keys Structure with loaded keys.
*
* \return Error code, KNOT_EOK if successful.
*/
int knot_load_zone_keys(const char *keydir_name, const knot_dname_t *zone_name,
bool nsec3_enabled, knot_zone_keys_t *keys);
/*!
* \brief Get zone key by a keytag.
*
* \param keys Zone keys.
* \param keytag Keytag to lookup a key for.
*
* \return Pointer to key or NULL if not found.
*/
const knot_zone_key_t *knot_get_zone_key(const knot_zone_keys_t *keys,
uint16_t keytag);
/*!
* \brief Free structure with zone keys and associated DNSSEC contexts.
*
* \param keys Zone keys.
*/
void knot_free_zone_keys(knot_zone_keys_t *keys);
/*!
* \brief Get timestamp of next key event.
*
* \param keys Zone keys.
*
* \return Timestamp of next key event.
*/
uint32_t knot_get_next_zone_key_event(const knot_zone_keys_t *keys);
#endif // _KNOT_DNSSEC_ZONE_KEYS_H_
/*! @} */
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