наложение кода возврата на slapd (return code overlay to slapd)
Имя (Name)
slapo-retcode - return code overlay to slapd
Синопсис (Synopsis)
ETCDIR/slapd.conf
Описание (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 subtree 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 dynamically 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 prefixed by retcode-, to avoid conflicts with directives
specific to the underlying database or to other stacked overlays.
The following specific directives can be used to configure the
retcode overlay:
retcode-parent <DN>
This directive defines the parent DN where dynamically
generated entries 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 result in a lot of unnecessary overhead.
retcode-sleep [-]<n>
Defines a sleep time in seconds that is spent before
actually handling 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 responses ("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 unsolicited 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 disconnects 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 )
Примеры (Examples)
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
Файлы (Files)
ETCDIR/slapd.conf
default slapd configuration file
Смотри также (See also)
slapd.conf(5), slapd-config(5), slapd(8). The slapo-retcode(5)
overlay supports dynamic configuration via back-config.
