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/*!
* \file errcode.h
*
* \author Lubos Slovak <lubos.slovak@nic.cz>
* \author Marek Vavrusa <marek.vavrusa@nic.cz>
*
* \brief Error codes and function for getting error message.
*
* \addtogroup common_lib
* @{
*/
/* 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 _KNOTD_COMMON_ERRCODE_H_
#define _KNOTD_COMMON_ERRCODE_H_
#include "common/errors.h"
/* errno -> Knot error mapping.
* \note offset is required, otherwise it would interfere with TSIG errors.
*/
#define ERRBASE 100
#define err2code(x) (-(ERRBASE + (x)))
/*! \brief Error codes used in the library. */
enum knot_error {
KNOT_EOK = 0, /*!< OK */
/* TSIG errors. */
KNOT_TSIG_EBADSIG = -16, /*!< Failed to verify TSIG MAC. */
KNOT_TSIG_EBADKEY = -17, /*!< TSIG key not recognized or invalid. */
KNOT_TSIG_EBADTIME = -18, /*!< TSIG signing time out of range. */
/* Directly mapped error codes. */
KNOT_ENOMEM = err2code(ENOMEM), /*!< Out of memory. */
KNOT_EINVAL = err2code(EINVAL), /*!< Invalid parameter passed. */
KNOT_ENOTSUP = err2code(ENOTSUP), /*!< Parameter not supported. */
KNOT_EBUSY = err2code(EBUSY), /*!< Requested resource is busy. */
KNOT_EAGAIN = err2code(EAGAIN), /*!< OS lacked necessary resources. */
KNOT_EACCES = err2code(EACCES), /*!< Permission is denied. */
KNOT_ECONNREFUSED = err2code(ECONNREFUSED), /*!< Connection is refused. */
KNOT_EISCONN = err2code(EISCONN), /*!< Already connected. */
KNOT_EADDRINUSE = err2code(EADDRINUSE), /*!< Address already in use. */
KNOT_ENOENT = err2code(ENOENT), /*!< Resource not found. */
KNOT_ERANGE = err2code(ERANGE), /*!< Value is out of range. */
/* General errors. */
KNOT_ERROR = -10000, /*!< General error. */
KNOT_ENOTRUNNING, /*!< Resource is not running. */
KNOT_EPARSEFAIL, /*!< Parser fail. */
KNOT_ENOIPV6, /*!< No IPv6 support. */
KNOT_EEXPIRED, /*!< Resource is expired. */
KNOT_EUPTODATE, /*!< Zone is up-to-date. */
KNOT_EFEWDATA, /*!< Not enough data to parse. */
KNOT_ESPACE, /*!< Not enough space provided. */
KNOT_EMALF, /*!< Malformed data. */
KNOT_ECRYPTO, /*!< Error in crypto library. */
KNOT_ENSEC3PAR, /*!< Missing or wrong NSEC3PARAM record. */
KNOT_ENSEC3CHAIN, /*!< Missing or wrong NSEC3 chain in the zone. */
KNOT_EOUTOFZONE, /*!< Domain name does not belong to the zone. */
KNOT_EHASH, /*!< Error in hash table. */
KNOT_EZONEINVAL, /*!< Invalid zone file. */
KNOT_EZONENOENT, /*!< Zone file not found. */
KNOT_ENOZONE, /*!< No such zone found. */
KNOT_ENONODE, /*!< No such node in zone found. */
KNOT_ENORRSET, /*!< No such RRSet found. */
KNOT_EDNAMEPTR, /*!< Domain name pointer larger than allowed. */
KNOT_EPAYLOAD, /*!< Payload in OPT RR larger than max wire size. */
KNOT_ECRC, /*!< Wrong dump CRC. */
KNOT_EPREREQ, /*!< UPDATE prerequisity not met. */
KNOT_ENOXFR, /*!< Transfer was not sent. */
KNOT_ENOIXFR, /*!< Transfer is not IXFR (is in AXFR format). */
KNOT_EXFRREFUSED, /*!< Zone transfer refused by the server. */
KNOT_EDENIED, /*!< Not allowed. */
KNOT_ECONN, /*!< Connection reset. */
KNOT_EIXFRSPACE, /*!< IXFR reply did not fit in. */
KNOT_ECNAME, /*!< CNAME loop found in zone. */
KNOT_ENODIFF, /*!< No zone diff can be created. */
KNOT_EDSDIGESTLEN, /*!< DS digest length does not match digest type. */
KNOT_ENOTSIG, /*!< Expected a TSIG or SIG(0). */
KNOT_ELIMIT, /*!< Exceeded response rate limit. */
KNOT_EWRITABLE, /*!< File is not writable. */
/* Control states. */
KNOT_CTL_STOP, /*!< Stop requested. */
/* Network errors. */
KNOT_NET_EADDR,
KNOT_NET_ESOCKET,
KNOT_NET_ECONNECT,
KNOT_NET_ESEND,
KNOT_NET_ERECV,
KNOT_NET_ETIMEOUT,
/* Encoding errors. */
KNOT_BASE64_ESIZE,
KNOT_BASE64_ECHAR,
KNOT_BASE32HEX_ESIZE,
KNOT_BASE32HEX_ECHAR,
/* Key parsing errors. */
KNOT_KEY_EPUBLIC_KEY_OPEN,
KNOT_KEY_EPRIVATE_KEY_OPEN,
KNOT_KEY_EPUBLIC_KEY_INVALID,
/* Key signing errors. */
KNOT_DNSSEC_ENOTSUP,
KNOT_DNSSEC_EINVALID_KEY,
KNOT_DNSSEC_EASSIGN_KEY,
KNOT_DNSSEC_ECREATE_DIGEST_CONTEXT,
KNOT_DNSSEC_EUNEXPECTED_SIGNATURE_SIZE,
KNOT_DNSSEC_EDECODE_RAW_SIGNATURE,
KNOT_DNSSEC_EINVALID_SIGNATURE,
KNOT_DNSSEC_ESIGN,
KNOT_DNSSEC_ENOKEY,
KNOT_DNSSEC_ENOKEYDIR,
/* NSEC3 errors. */
KNOT_NSEC3_ECOMPUTE_HASH
};
/*! \brief Table linking error messages to error codes. */
extern const error_table_t knot_error_msgs[];
/*!
* \brief Returns error message for the given error code.
*
* \param code Error code.
*
* \return String containing the error message.
*/
static inline const char *knot_strerror(int code)
{
return error_to_str((const error_table_t*)knot_error_msgs, code);
}
/*!
* \brief errno mapper that automatically prepends fallback value.
*
* \see map_errno()
*
* \param err POSIX errno.
* \param ... List of handled codes.
*
* \return Mapped error code.
*/
#define knot_map_errno(err...) map_errno(KNOT_ERROR, err);
#endif /* _KNOTD_COMMON_ERRCODE_H_ */
/*! @} */
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