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/*!
* \file consts.h
*
* \author Lubos Slovak <lubos.slovak@nic.cz>
*
* \brief Contains some DNS-related constants.
*
* \addtogroup libknot
* @{
*/
/* 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/>.
*/
#ifndef _KNOT_CONSTS_H_
#define _KNOT_CONSTS_H_
#include <stdint.h>
#include "util/descriptor.h"
/*
* OPCODEs
*/
typedef enum knot_opcode {
KNOT_OPCODE_QUERY = 0, /* a standard query (QUERY) */
KNOT_OPCODE_IQUERY = 1, /* an inverse query (IQUERY) */
KNOT_OPCODE_STATUS = 2, /* a server status request (STATUS) */
KNOT_OPCODE_NOTIFY = 4, /* NOTIFY */
KNOT_OPCODE_UPDATE = 5, /* Dynamic update */
KNOT_OPCODE_OFFSET = 14
} knot_opcode_t;
/*!
* \brief Query types (internal use only).
*
* This type encompasses the different query types distinguished by both the
* OPCODE and the QTYPE.
*/
typedef enum knot_packet_type {
KNOT_QUERY_NORMAL, /*!< Normal query. */
KNOT_QUERY_AXFR, /*!< Request for AXFR transfer. */
KNOT_QUERY_IXFR, /*!< Request for IXFR transfer. */
KNOT_QUERY_NOTIFY, /*!< NOTIFY query. */
KNOT_QUERY_UPDATE, /*!< Dynamic update. */
KNOT_RESPONSE_NORMAL, /*!< Normal response. */
KNOT_RESPONSE_AXFR, /*!< AXFR transfer response. */
KNOT_RESPONSE_IXFR, /*!< IXFR transfer response. */
KNOT_RESPONSE_NOTIFY /*!< NOTIFY response. */
} knot_packet_type_t;
/*
* RCODEs
*/
typedef enum knot_rcode {
KNOT_RCODE_NOERROR = 0, /* No error condition */
KNOT_RCODE_FORMERR = 1, /* Format error */
KNOT_RCODE_SERVFAIL = 2, /* Server failure */
KNOT_RCODE_NXDOMAIN = 3, /* Name Error */
KNOT_RCODE_NOTIMPL = 4, /* Not implemented */
KNOT_RCODE_REFUSED = 5, /* Refused */
KNOT_RCODE_YXDOMAIN = 6, /* name should not exist */
KNOT_RCODE_YXRRSET = 7, /* rrset should not exist */
KNOT_RCODE_NXRRSET = 8, /* rrset does not exist */
KNOT_RCODE_NOTAUTH = 9, /* server not authoritative */
KNOT_RCODE_NOTZONE = 10, /* name not inside zone */
} knot_rcode_t;
typedef enum knot_tsig_rcode {
KNOT_TSIG_RCODE_BADSIG = 16,
KNOT_TSIG_RCODE_BADKEY = 17,
KNOT_TSIG_RCODE_BADTIME = 18
} knot_tsig_rcode_t;
/*
* CLASSes
*/
//typedef enum knot_class {
// KNOT_CLASS_IN = 1, /* Class IN */
// KNOT_CLASS_CS = 2, /* Class CS */
// KNOT_CLASS_CH = 3, /* Class CHAOS */
// KNOT_CLASS_HS = 4, /* Class HS */
// KNOT_CLASS_NONE = 254, /* Class NONE rfc2136 */
// KNOT_CLASS_ANY = 255 /* Class ANY */
//} knot_class_t;
/*
* Other
*/
typedef enum knot_const {
KNOT_MAX_DNAME_LENGTH = 255,
KNOT_MAX_DNAME_LABELS = 127 // 1-char labels
} knot_const_t;
#endif /* _KNOT_CONSTS_H_ */
/*! @} */
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