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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 <stdbool.h>
#include <sys/socket.h>
#include "libknot/tsig.h"
#include "knot/conf/conf.h"
/*! \brief ACL actions. */
typedef enum {
ACL_ACTION_QUERY = 0,
ACL_ACTION_NOTIFY = 1,
ACL_ACTION_TRANSFER = 2,
ACL_ACTION_UPDATE = 3
} acl_action_t;
/*! \brief ACL update owner matching options. */
typedef enum {
ACL_UPDATE_OWNER_NONE = 0,
ACL_UPDATE_OWNER_KEY = 1,
ACL_UPDATE_OWNER_ZONE = 2,
ACL_UPDATE_OWNER_NAME = 3,
} acl_update_owner_t;
/*! \bref ACL update owner comparison options. */
typedef enum {
ACL_UPDATE_MATCH_SUBEQ = 0,
ACL_UPDATE_MATCH_EQ = 1,
ACL_UPDATE_MATCH_SUB = 2,
} acl_update_owner_match_t;
/*!
* \brief Checks if the address and/or tsig key matches given ACL list.
*
* If a proper ACL rule is found and tsig.name is not empty, tsig.secret is filled.
*
* \param conf Configuration.
* \param acl Pointer to ACL config multivalued identifier.
* \param action ACL action.
* \param addr IP address.
* \param tsig TSIG parameters.
* \param zone_name Zone name.
* \param query Update query.
*
* \retval True if authenticated.
*/
bool acl_allowed(conf_t *conf, conf_val_t *acl, acl_action_t action,
const struct sockaddr_storage *addr, knot_tsig_key_t *tsig,
const knot_dname_t *zone_name, knot_pkt_t *query);
/*!
* \brief Checks if the address and/or tsig key matches a remote from the list.
*
* Global (server.automatic-acl) and per remote automatic ACL functionality
* must be enabled in order to decide the remote is allowed.
*
* If a proper REMOTE is found and tsig.name is not empty, tsig.secret is filled.
*
* \param conf Configuration.
* \param rmts Pointer to REMOTE config multivalued identifier.
* \param addr IP address.
* \param tsig TSIG parameters.
*
* \retval True if authenticated.
*/
bool rmt_allowed(conf_t *conf, conf_val_t *rmts, const struct sockaddr_storage *addr,
knot_tsig_key_t *tsig);
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