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SLAPO-RETCODE(5) File Formats Manual SLAPO-RETCODE(5) NAME slapo-retcode - return code overlay to slapd SYNOPSIS /usr/local/etc/openldap/slapd.conf DESCRIPTION The retcode overlay to slapd(8) is useful to test the behavior of clients when server-generated erroneous and/or unusual responses occur, e.g. error codes, referrals, excessive response times and so on. The error responses are generated according to different strategies. In the first case, all operations targeted at a specific configurable sub- tree cause the object related to the request DN to be looked up and checked for return code data: a response code, plus an optional textual message, an optional configurable delay, an optional matched DN field, and, when the response code is "referral", a (list of) referral(s). Well-known response codes from standard track documents are provided in retcode.conf, which can be included after instantiating the overlay. In the second case, objects of classes inherited from the errAbsObject, like errObject or errAuxObject, when returned as intermediate responses of a search request, are changed into the response dictated by their content. A third mode causes objects to be looked up from the underlying database to discover if their class inherits from errABsObject; in that case, their content is used to compute the corresponding response. The behavior is disabled by using the manageDSAit control (RFC 3296); in that case, the resulting object, either present in the directory or dynami- cally generated by the overlay, or contained in the request, is handled as usual. The config directives that are specific to the retcode overlay must be pre- fixed by retcode-, to avoid conflicts with directives specific to the un- derlying database or to other stacked overlays. The following specific di- rectives can be used to configure the retcode overlay: retcode-parent <DN> This directive defines the parent DN where dynamically generated en- tries reside. If not defined, the suffix of the database is used. retcode-item <RDN> <errCode> [op=<oplist>] [text=<message>] [ref=<referral>] [sleeptime=<sec>] [matched=<DN>] [unsolicited=<OID>[:<data>]] [flags=[pre|post-]disconnect[,...]] A dynamically generated entry, located below retcode-parent. The errCode is the number of the response code; it can be in any format supported by strtol(3). The optional oplist is a list of operations that cause response code generation; if absent, all operations are affected. The matched field is the matched DN that is returned along with the error, while the text field is an optional diagnostics message. The ref field is only allowed for the referral response code. The sleeptime field causes slapd(8) to sleep the specified number of seconds before proceeding with the operation. The unsolicited field can be used to cause the return of an RFC 4511 unsolicited response message; if OID is not "0", an extended response is generated, with the optional data appended. If flags contains disconnect, or pre-disconnect, slapd(8) disconnects abruptly, without notice; post-disconnect causes disconnection right after sending response as appropriate. retcode-indir Enables exploitation of in-directory stored errAbsObject. May re- sult in a lot of unnecessary overhead. retcode-sleep [-]<n> Defines a sleep time in seconds that is spent before actually han- dling any operation. If negative, a random time between 0 and the absolute value of the argument is used. SCHEMA The retcode overlay utilizes the "return code" schema described herein. This schema is specifically designed for use with this overlay and is not intended to be used otherwise. It is also noted that the schema described here is a work in progress, and hence subject to change without notice. The schema is loaded automatically by the overlay. The schema includes a number of object classes and associated attribute types as described below. The error code: ( 1.3.6.1.4.1.4203.666.11.4.1.1 NAME ( 'errCode' ) DESC 'LDAP error code' EQUALITY integerMatch ORDERING integerOrderingMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE ) The operations that trigger the response code: ( 1.3.6.1.4.1.4203.666.11.4.1.2 NAME ( 'errOp' ) DESC 'Operations the errObject applies to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) The text message: ( 1.3.6.1.4.1.4203.666.11.4.1.3 NAME ( 'errText' ) DESC 'LDAP error textual description' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 SINGLE-VALUE ) The sleep time before the response is actually returned to the client: ( 1.3.6.1.4.1.4203.666.11.4.1.4 NAME ( 'errSleepTime' ) DESC 'Time to wait before returning the error' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE ) The matched DN returned to the client: ( 1.3.6.1.4.1.4203.666.11.4.1.5 NAME ( 'errMatchedDN' ) DESC 'Value to be returned as matched DN' EQUALITY distinguishedNameMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 SINGLE-VALUE ) The OID to be returned as extended response OID in RFC 4511 unsolicited re- sponses ("0" generates a regular response with msgid set to 0): ( 1.3.6.1.4.1.4203.666.11.4.1.6 NAME ( 'errUnsolicitedOID' ) DESC 'OID to be returned within unsolicited response' EQUALITY objectIdentifierMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.38 SINGLE-VALUE ) The octet string to be returned as extended response data in RFC 4511 unso- licited response: ( 1.3.6.1.4.1.4203.666.11.4.1.7 NAME ( 'errUnsolicitedData' ) DESC 'Data to be returned within unsolicited response' SYNTAX 1.3.6.1.4.1.1466.115.121.1.40 SINGLE-VALUE ) If TRUE, slapd(8) disconnects abruptly without notice; if FALSE, it discon- nects after sending response as appropriate: ( 1.3.6.1.4.1.4203.666.11.4.1.8 NAME ( 'errDisconnect' ) DESC 'Disconnect without notice' SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 SINGLE-VALUE ) The abstract class that triggers the overlay: ( 1.3.6.1.4.1.4203.666.11.4.3.0 NAME ( 'errAbsObject' ) SUP top ABSTRACT MUST ( errCode ) MAY ( cn $ description $ errOp $ errText $ errSleepTime $ errMatchedDN ) ) The standalone structural objectclass for specifically created data: ( 1.3.6.1.4.1.4203.666.11.4.3.1 NAME ( 'errObject' ) SUP errAbsObject STRUCTURAL ) The auxiliary objectclass to alter the behavior of existing objects: ( 1.3.6.1.4.1.4203.666.11.4.3.2 NAME ( 'errAuxObject' ) SUP errAbsObject AUXILIARY ) EXAMPLE overlay retcode retcode-parent "ou=RetCodes,dc=example,dc=com" # retcode.conf is found in tests/data/ of the source tree include ./retcode.conf # Wait 10 seconds, then return success (0x00) retcode-item "cn=Success after 10 seconds" 0x00 sleeptime=10 # Wait 10 seconds, then return timelimitExceeded (0x03) retcode-item "cn=Timelimit after 10 seconds" 0x03 sleeptime=10 FILES /usr/local/etc/openldap/slapd.conf default slapd configuration file SEE ALSO slapd.conf(5), slapd-config(5), slapd(8). The slapo-retcode(5) overlay supports dynamic configuration via back-config. ACKNOWLEDGEMENTS This module was written in 2005 by Pierangelo Masarati for SysNet s.n.c. OpenLDAP 2.6.13 2026/03/09 SLAPO-RETCODE(5)
NAME | SYNOPSIS | DESCRIPTION | SCHEMA | EXAMPLE | FILES | SEE ALSO | ACKNOWLEDGEMENTS
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