bind9/lib/isc/include/isc/result.h
Ondřej Surý 5cd69a3dcf
Detect resolution loops between fetches
Maintain the relationship between the parent and child fetch and when
creating a new child fetch, properly check the resolution loops that
would lead to a new fetch would join one of the parent's fetch contexts.

(cherry picked from commit 4d307ac67a)
2025-11-28 09:32:53 +01:00

298 lines
7.9 KiB
C

/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#pragma once
/*! \file isc/result.h */
#include <inttypes.h>
#include <isc/lang.h>
typedef enum isc_result {
ISC_R_SUCCESS, /*%< success */
ISC_R_NOMEMORY, /*%< out of memory */
ISC_R_TIMEDOUT, /*%< timed out */
ISC_R_NOTHREADS, /*%< no available threads */
ISC_R_ADDRNOTAVAIL, /*%< address not available */
ISC_R_ADDRINUSE, /*%< address in use */
ISC_R_NOPERM, /*%< permission denied */
ISC_R_NOCONN, /*%< no pending connections */
ISC_R_NETUNREACH, /*%< network unreachable */
ISC_R_HOSTUNREACH, /*%< host unreachable */
ISC_R_NETDOWN, /*%< network down */
ISC_R_HOSTDOWN, /*%< host down */
ISC_R_CONNREFUSED, /*%< connection refused */
ISC_R_NORESOURCES, /*%< not enough free resources */
ISC_R_EOF, /*%< end of file */
ISC_R_BOUND, /*%< socket already bound */
ISC_R_RELOAD, /*%< reload */
ISC_R_SUSPEND = ISC_R_RELOAD, /*%< alias of 'reload' */
ISC_R_LOCKBUSY, /*%< lock busy */
ISC_R_EXISTS, /*%< already exists */
ISC_R_NOSPACE, /*%< ran out of space */
ISC_R_CANCELED, /*%< operation canceled */
ISC_R_NOTBOUND, /*%< socket is not bound */
ISC_R_SHUTTINGDOWN, /*%< shutting down */
ISC_R_NOTFOUND, /*%< not found */
ISC_R_UNEXPECTEDEND, /*%< unexpected end of input */
ISC_R_FAILURE, /*%< generic failure */
ISC_R_IOERROR, /*%< I/O error */
ISC_R_NOTIMPLEMENTED, /*%< not implemented */
ISC_R_UNBALANCED, /*%< unbalanced parentheses */
ISC_R_NOMORE, /*%< no more */
ISC_R_INVALIDFILE, /*%< invalid file */
ISC_R_BADBASE64, /*%< bad base64 encoding */
ISC_R_UNEXPECTEDTOKEN, /*%< unexpected token */
ISC_R_QUOTA, /*%< quota reached */
ISC_R_UNEXPECTED, /*%< unexpected error */
ISC_R_ALREADYRUNNING, /*%< already running */
ISC_R_IGNORE, /*%< ignore */
ISC_R_MASKNONCONTIG, /*%< addr mask not contiguous */
ISC_R_FILENOTFOUND, /*%< file not found */
ISC_R_FILEEXISTS, /*%< file already exists */
ISC_R_NOTCONNECTED, /*%< socket is not connected */
ISC_R_RANGE, /*%< out of range */
ISC_R_NOENTROPY, /*%< out of entropy */
ISC_R_MULTICAST, /*%< invalid use of multicast */
ISC_R_NOTFILE, /*%< not a file */
ISC_R_NOTDIRECTORY, /*%< not a directory */
ISC_R_EMPTY, /*%< queue is empty */
ISC_R_FAMILYMISMATCH, /*%< address family mismatch */
ISC_R_FAMILYNOSUPPORT, /*%< AF not supported */
ISC_R_BADHEX, /*%< bad hex encoding */
ISC_R_TOOMANYOPENFILES, /*%< too many open files */
ISC_R_NOTBLOCKING, /*%< not blocking */
ISC_R_UNBALANCEDQUOTES, /*%< unbalanced quotes */
ISC_R_INPROGRESS, /*%< operation in progress */
ISC_R_CONNECTIONRESET, /*%< connection reset */
ISC_R_SOFTQUOTA, /*%< soft quota reached */
ISC_R_BADNUMBER, /*%< not a valid number */
ISC_R_DISABLED, /*%< disabled */
ISC_R_MAXSIZE, /*%< max size */
ISC_R_BADADDRESSFORM, /*%< invalid address format */
ISC_R_BADBASE32, /*%< bad base32 encoding */
ISC_R_UNSET, /*%< unset */
ISC_R_MULTIPLE, /*%< multiple */
ISC_R_WOULDBLOCK, /*%< would block */
ISC_R_COMPLETE, /*%< complete */
ISC_R_CRYPTOFAILURE, /*%< cryptography library failure */
ISC_R_DISCQUOTA, /*%< disc quota */
ISC_R_DISCFULL, /*%< disc full */
ISC_R_DEFAULT, /*%< default */
ISC_R_IPV4PREFIX, /*%< IPv4 prefix */
ISC_R_TLSERROR, /*%< TLS error */
ISC_R_TLSBADPEERCERT, /*%< TLS peer certificate verification failed */
ISC_R_HTTP2ALPNERROR, /*%< ALPN for HTTP/2 failed */
ISC_R_DOTALPNERROR, /*%< ALPN for DoT failed */
ISC_R_INVALIDPROTO, /*%< invalid protocol */
DNS_R_LABELTOOLONG,
DNS_R_BADESCAPE,
DNS_R_EMPTYLABEL,
DNS_R_BADDOTTEDQUAD,
DNS_R_INVALIDNS,
DNS_R_UNKNOWN,
DNS_R_BADLABELTYPE,
DNS_R_BADPOINTER,
DNS_R_TOOMANYHOPS,
DNS_R_DISALLOWED,
DNS_R_EXTRATOKEN,
DNS_R_EXTRADATA,
DNS_R_TEXTTOOLONG,
DNS_R_NOTZONETOP,
DNS_R_SYNTAX,
DNS_R_BADCKSUM,
DNS_R_BADAAAA,
DNS_R_NOOWNER,
DNS_R_NOTTL,
DNS_R_BADCLASS,
DNS_R_NAMETOOLONG,
DNS_R_PARTIALMATCH,
DNS_R_NEWORIGIN,
DNS_R_UNCHANGED,
DNS_R_BADTTL,
DNS_R_NOREDATA,
DNS_R_CONTINUE,
DNS_R_DELEGATION,
DNS_R_GLUE,
DNS_R_DNAME,
DNS_R_CNAME,
DNS_R_BADDB,
DNS_R_ZONECUT,
DNS_R_BADZONE,
DNS_R_MOREDATA,
DNS_R_UPTODATE,
DNS_R_TSIGVERIFYFAILURE,
DNS_R_TSIGERRORSET,
DNS_R_SIGINVALID,
DNS_R_SIGEXPIRED,
DNS_R_SIGFUTURE,
DNS_R_KEYUNAUTHORIZED,
DNS_R_INVALIDTIME,
DNS_R_EXPECTEDTSIG,
DNS_R_UNEXPECTEDTSIG,
DNS_R_INVALIDTKEY,
DNS_R_HINT,
DNS_R_DROP,
DNS_R_NOTLOADED,
DNS_R_NCACHENXDOMAIN,
DNS_R_NCACHENXRRSET,
DNS_R_WAIT,
DNS_R_NOTVERIFIEDYET,
DNS_R_NOIDENTITY,
DNS_R_NOJOURNAL,
DNS_R_ALIAS,
DNS_R_USETCP,
DNS_R_NOVALIDSIG,
DNS_R_NOVALIDNSEC,
DNS_R_NOTINSECURE,
DNS_R_UNKNOWNSERVICE,
DNS_R_RECOVERABLE,
DNS_R_UNKNOWNOPT,
DNS_R_UNEXPECTEDID,
DNS_R_SEENINCLUDE,
DNS_R_NOTEXACT,
DNS_R_BLACKHOLED,
DNS_R_BADALG,
DNS_R_METATYPE,
DNS_R_CNAMEANDOTHER,
DNS_R_SINGLETON,
DNS_R_HINTNXRRSET,
DNS_R_NOMASTERFILE,
DNS_R_UNKNOWNPROTO,
DNS_R_CLOCKSKEW,
DNS_R_BADIXFR,
DNS_R_NOTAUTHORITATIVE,
DNS_R_NOVALIDKEY,
DNS_R_OBSOLETE,
DNS_R_FROZEN,
DNS_R_UNKNOWNFLAG,
DNS_R_EXPECTEDRESPONSE,
DNS_R_NOVALIDDS,
DNS_R_NSISADDRESS,
DNS_R_REMOTEFORMERR,
DNS_R_TRUNCATEDTCP,
DNS_R_LAME,
DNS_R_UNEXPECTEDRCODE,
DNS_R_UNEXPECTEDOPCODE,
DNS_R_CHASEDSSERVERS,
DNS_R_EMPTYNAME,
DNS_R_EMPTYWILD,
DNS_R_BADBITMAP,
DNS_R_FROMWILDCARD,
DNS_R_BADOWNERNAME,
DNS_R_BADNAME,
DNS_R_DYNAMIC,
DNS_R_UNKNOWNCOMMAND,
DNS_R_MUSTBESECURE,
DNS_R_COVERINGNSEC,
DNS_R_MXISADDRESS,
DNS_R_DUPLICATE,
DNS_R_INVALIDNSEC3,
DNS_R_NOTPRIMARY,
DNS_R_BROKENCHAIN,
DNS_R_EXPIRED,
DNS_R_NOTDYNAMIC,
DNS_R_BADEUI,
DNS_R_NTACOVERED,
DNS_R_BADCDS,
DNS_R_BADCDNSKEY,
DNS_R_OPTERR,
DNS_R_BADDNSTAP,
DNS_R_BADTSIG,
DNS_R_BADSIG0,
DNS_R_TOOMANYRECORDS,
DNS_R_VERIFYFAILURE,
DNS_R_ATZONETOP,
DNS_R_NOKEYMATCH,
DNS_R_TOOMANYKEYS,
DNS_R_KEYNOTACTIVE,
DNS_R_NSEC3ITERRANGE,
DNS_R_NSEC3SALTRANGE,
DNS_R_NSEC3BADALG,
DNS_R_NSEC3RESALT,
DNS_R_INCONSISTENTRR,
DNS_R_HAVEPARMKEYS,
DNS_R_NOALPN,
DNS_R_NODOHPATH,
DNS_R_NOSKRFILE,
DNS_R_NOSKRBUNDLE,
DNS_R_LOOPDETECTED,
DST_R_UNSUPPORTEDALG,
DST_R_CRYPTOFAILURE,
/* compat */
DST_R_OPENSSLFAILURE = DST_R_CRYPTOFAILURE,
DST_R_NOCRYPTO,
DST_R_NULLKEY,
DST_R_INVALIDPUBLICKEY,
DST_R_INVALIDPRIVATEKEY,
DST_R_WRITEERROR,
DST_R_INVALIDPARAM,
DST_R_SIGNFAILURE,
DST_R_VERIFYFAILURE,
DST_R_NOTPUBLICKEY,
DST_R_NOTPRIVATEKEY,
DST_R_KEYCANNOTCOMPUTESECRET,
DST_R_COMPUTESECRETFAILURE,
DST_R_NORANDOMNESS,
DST_R_BADKEYTYPE,
DST_R_NOENGINE,
DST_R_EXTERNALKEY,
DNS_R_NOERROR,
DNS_R_FORMERR,
DNS_R_SERVFAIL,
DNS_R_NXDOMAIN,
DNS_R_NOTIMP,
DNS_R_REFUSED,
DNS_R_YXDOMAIN,
DNS_R_YXRRSET,
DNS_R_NXRRSET,
DNS_R_NOTAUTH,
DNS_R_NOTZONE,
DNS_R_RCODE11,
DNS_R_RCODE12,
DNS_R_RCODE13,
DNS_R_RCODE14,
DNS_R_RCODE15,
DNS_R_BADVERS,
DNS_R_BADCOOKIE = DNS_R_NOERROR + 23,
ISCCC_R_UNKNOWNVERSION,
ISCCC_R_SYNTAX,
ISCCC_R_BADAUTH,
ISCCC_R_EXPIRED,
ISCCC_R_CLOCKSKEW,
ISCCC_R_DUPLICATE,
ISCCC_R_MAXDEPTH,
ISC_R_NRESULTS, /*% The number of results. */
ISC_R_MAKE_ENUM_32BIT = INT32_MAX,
} isc_result_t;
ISC_LANG_BEGINDECLS
const char *isc_result_totext(isc_result_t);
/*%<
* Convert an isc_result_t into a string message describing the result.
*/
const char *isc_result_toid(isc_result_t);
/*%<
* Convert an isc_result_t into a string identifier such as
* "ISC_R_SUCCESS".
*/
ISC_LANG_ENDDECLS