Hello,
I'v implemented a OpenLDAP Metadirectory that proxying 2 Microsft AD targets. Some attributes on Active Directory objects are composed of bitwise flags. Using a bitwise operator is necessary to return only objects that match a particular bit being set. To query Active Directory for user class objects that are disabled: (UserAccountControl:1.2.840.113556.1.4.803:=2)
I'm trying to create a filter that selects entries for which the object class is a user but not a computer, and for which the account is not flagged as disabled:
(&(objectclass=user)(!(objectclass=Computer))(!(UserAccountControl:1.2.840.113556.1.4.803:=2)))
If I connect AD server directly, all is OK, I get a search result. But sending this search to Meta, does not work.
Log: slapd[22461]: conn=1004 op=3 SRCH base="dc=meta,dc=pov" scope=2 deref=2 filter="(&(?objectClass=user)(!(?objectClass=Computer))(?=error))" slapd[22461]: conn=1004 op=3 meta_back_search: base="dc=meta,dc=pov" scope=2: no candidate could be selected slapd[22461]: conn=1004 op=3 SEARCH RESULT tag=101 err=32 nentries=0 text= slapd[22461]: conn=1004 op=4 UNBIND
My OpenLDAP version: 2.4.26
my config:
database meta lastmod off suffix "dc=meta,dc=pov" rootdn "cn=metaguru,dc=meta,dc=pov" rootpw xxxxxxxx
uri "ldap://w3kvm.adwal.corporate.net:389/dc=meta,dc=pov" suffixmassage "dc=meta,dc=pov" "dc=adwal,dc=corporate,dc=net"
idassert-authzFrom "dn:*" idassert-bind bindmethod=simple binddn="cn=radiator,cn=Users,dc=adwal,dc=corporate,dc=net" credentials="xxxxx" mode=none
uri "ldap://w3kvm02.adwal.corporate.net:389/dc=meta,dc=pov" suffixmassage "dc=meta,dc=pov" "dc=second,dc=crocus,dc=com"
idassert-authzFrom "dn:*" idassert-bind bindmethod=simple binddn="cn=predator,cn=Users,dc=second,dc=crocus,dc=com" credentials="xxxxxxxx" mode=none
Where is my mistake ? Can you help me please
Kind regards Waldemar
W.Siebert@t-systems.com wrote:
(&(objectclass=user)(!(objectclass=Computer))(!(*UserAccountControl:1.2.840.113556.1.4.803:=2*)))
If I connect AD server directly, all is OK, I get a search result. But sending this search to Meta, does not work.
*Log:* slapd[22461]: conn=1004 op=3 SRCH base="dc=meta,dc=pov" scope=2 deref=2 filter="(&(?objectClass=user)(!(?objectClass=Computer))( *?=error* ))"
First I'd try to add the object classes 'user' and 'computer' and the attribute type userAccountControl to the local OpenLDAP schema. See slapd-ldap(5) for a note about schema and filters.
Not sure whether the non-existing matching rule 1.2.840.113556.1.4.803 can be used though. You cannot just declare matching rules in OpenLDAP's schema files.
Ciao, Michael.
On 11/22/2011 10:47 AM, Michael Ströder wrote:
W.Siebert@t-systems.com wrote:
(&(objectclass=user)(!(objectclass=Computer))(!(*UserAccountControl:1.2.840.113556.1.4.803:=2*)))
If I connect AD server directly, all is OK, I get a search result. But sending this search to Meta, does not work.
*Log:* slapd[22461]: conn=1004 op=3 SRCH base="dc=meta,dc=pov" scope=2 deref=2 filter="(&(?objectClass=user)(!(?objectClass=Computer))( *?=error* ))"
First I'd try to add the object classes 'user' and 'computer' and the attribute type userAccountControl to the local OpenLDAP schema. See slapd-ldap(5) for a note about schema and filters.
Not sure whether the non-existing matching rule 1.2.840.113556.1.4.803 can be used though. You cannot just declare matching rules in OpenLDAP's schema files.
Grepping the code, I see that integerBitAndMatch and integerBitOrMatch are implemented. Perhaps the issue is that UserAccountControl is not defined; in any case, enumeration (its syntax, 2.5.5.9, according to http://msdn.microsoft.com/en-us/library/windows/desktop/ms680832%28v=vs.85%29.aspx) is not defined. Adding a syntax (or a matching rule) requires the corresponding pieces of code for validation and normalization, if required. It's not a big deal as soon as the specification is available (and doable), but that's another business.
p.
openldap-technical@openldap.org
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Michael Ströder -
Pierangelo Masarati -
W.Siebert＠t-systems.com