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/* Copyright (C) 2020 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 "knot/zone/node.h"
#include "knot/zone/contents.h"
typedef enum {
SEMCHECK_MANDATORY_ONLY,
SEMCHECK_NO_DNSSEC,
SEMCHECK_AUTO_DNSSEC,
SEMCHECK_DNSSEC,
} semcheck_optional_t;
/*!
*\brief Internal error constants.
*/
typedef enum {
// Mandatory checks.
SEM_ERR_SOA_NONE,
SEM_ERR_CNAME_EXTRA_RECORDS,
SEM_ERR_CNAME_MULTIPLE,
SEM_ERR_DNAME_CHILDREN,
SEM_ERR_DNAME_MULTIPLE,
SEM_ERR_DNAME_EXTRA_NS,
// Optional checks.
SEM_ERR_NS_APEX,
SEM_ERR_NS_GLUE,
SEM_ERR_RRSIG_RDATA_TYPE_COVERED,
SEM_ERR_RRSIG_RDATA_TTL,
SEM_ERR_RRSIG_RDATA_EXPIRATION,
SEM_ERR_RRSIG_RDATA_INCEPTION,
SEM_ERR_RRSIG_RDATA_LABELS,
SEM_ERR_RRSIG_RDATA_OWNER,
SEM_ERR_RRSIG_NO_RRSIG,
SEM_ERR_RRSIG_SIGNED,
SEM_ERR_RRSIG_TTL,
SEM_ERR_RRSIG_UNVERIFIABLE,
SEM_ERR_NSEC_NONE,
SEM_ERR_NSEC_RDATA_BITMAP,
SEM_ERR_NSEC_RDATA_MULTIPLE,
SEM_ERR_NSEC_RDATA_CHAIN,
SEM_ERR_NSEC3_NONE,
SEM_ERR_NSEC3_INSECURE_DELEGATION_OPT,
SEM_ERR_NSEC3_EXTRA_RECORD,
SEM_ERR_NSEC3_RDATA_TTL,
SEM_ERR_NSEC3_RDATA_CHAIN,
SEM_ERR_NSEC3_RDATA_BITMAP,
SEM_ERR_NSEC3_RDATA_FLAGS,
SEM_ERR_NSEC3_RDATA_SALT,
SEM_ERR_NSEC3_RDATA_ALG,
SEM_ERR_NSEC3_RDATA_ITERS,
SEM_ERR_NSEC3PARAM_RDATA_FLAGS,
SEM_ERR_NSEC3PARAM_RDATA_ALG,
SEM_ERR_DS_RDATA_ALG,
SEM_ERR_DS_RDATA_DIGLEN,
SEM_ERR_DNSKEY_NONE,
SEM_ERR_DNSKEY_INVALID,
SEM_ERR_DNSKEY_RDATA_PROTOCOL,
SEM_ERR_CDS_NONE,
SEM_ERR_CDS_NOT_MATCH,
SEM_ERR_CDNSKEY_NONE,
SEM_ERR_CDNSKEY_NO_DNSKEY,
SEM_ERR_CDNSKEY_NO_CDS,
SEM_ERR_CDNSKEY_INVALID_DELETE,
// General error!
SEM_ERR_UNKNOWN
} sem_error_t;
const char *sem_error_msg(sem_error_t code);
/*!
* \brief Structure for handling semantic errors.
*/
typedef struct sem_handler sem_handler_t;
/*!
* \brief Callback for handle error.
*
* Return KNOT_EOK to continue in semantic checks.
* Return other KNOT_E* to stop semantic check with error.
*/
typedef void (*sem_callback) (sem_handler_t *ctx, const zone_contents_t *zone,
const zone_node_t *node, sem_error_t error, const char *data);
struct sem_handler {
sem_callback cb;
bool fatal_error; /* Error(s) in the zonefile. */
bool warning; /* Warning(s) in the zonefile. */
bool error; /* An error in the current check. */
};
/*!
* \brief Check zone for semantic errors.
*
* Errors are logged in error handler.
*
* \param zone Zone to be searched / checked.
* \param optional To do also optional check.
* \param handler Semantic error handler.
* \param time Check zone at given time (rrsig expiration).
*
* \retval KNOT_EOK no error found
* \retval KNOT_ESEMCHECK found semantic error
* \retval KNOT_EINVAL or other error
*/
int sem_checks_process(zone_contents_t *zone, semcheck_optional_t optional, sem_handler_t *handler,
time_t time);
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