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/* Copyright (C) 2022 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/>.
*/
#pragma once
#include <stdint.h>
#include <time.h>
#include "libknot/dname.h"
#include "knot/journal/knot_lmdb.h"
#define LAST_NOTIFIED_SERIAL_VALID (1LLU << 32)
/*!
* \brief Persistent zone timers.
*/
struct zone_timers {
uint32_t soa_expire; //!< SOA expire value. DEPRECATED
time_t last_flush; //!< Last zone file synchronization.
time_t last_refresh; //!< Last successful zone refresh attempt. DEPRECATED
time_t next_refresh; //!< Next zone refresh attempt.
bool last_refresh_ok; //!< Last zone refresh attempt was successful.
uint64_t last_notified_serial; //!< SOA serial of last successful NOTIFY; (1<<32) if none.
time_t next_ds_check; //!< Next parent DS check.
time_t next_ds_push; //!< Next DDNS to parent zone with updated DS record.
time_t catalog_member; //!< This catalog member zone created.
time_t next_expire; //!< Timestamp of the zone to expire.
};
typedef struct zone_timers zone_timers_t;
/*!
* \brief From zonedb.h
*/
typedef struct knot_zonedb knot_zonedb_t;
/*!
* \brief Load timers for one zone.
*
* \param[in] db Timer database.
* \param[in] zone Zone name.
* \param[out] timers Loaded timers
*
* \return KNOT_E*
* \retval KNOT_ENOENT Zone not found in the database.
*/
int zone_timers_read(knot_lmdb_db_t *db, const knot_dname_t *zone,
zone_timers_t *timers);
/*!
* \brief Write timers for one zone.
*
* \param db Timer database.
* \param zone Zone name.
* \param timers Loaded timers
*
* \return KNOT_E*
*/
int zone_timers_write(knot_lmdb_db_t *db, const knot_dname_t *zone,
const zone_timers_t *timers);
/*!
* \brief Write timers for all zones.
*
* \param db Timer database.
* \param zonedb Zones database.
*
* \return KNOT_E*
*/
int zone_timers_write_all(knot_lmdb_db_t *db, knot_zonedb_t *zonedb);
/*!
* \brief Selectively delete zones from the database.
*
* \param db Timer database.
* \param keep_zone Filtering callback.
* \param cb_data Data passed to callback function.
*
* \return KNOT_E*
*/
int zone_timers_sweep(knot_lmdb_db_t *db, sweep_cb keep_zone, void *cb_data);
/*!
* \brief Tell if the specified serial has already been notified according to timers.
*/
bool zone_timers_serial_notified(const zone_timers_t *timers, uint32_t serial);
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