[Date Prev][Date Next] [Chronological] [Thread] [Top]

Re: Using a bitwise filter

On 11/22/2011 10:47 AM, Michael Ströder wrote:
W.Siebert@t-systems.com wrote:

If I connect AD server directly, all is OK, I get a search result. But sending
this search to Meta, does not work.

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,, 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.


Pierangelo Masarati
Associate Professor
Dipartimento di Ingegneria Aerospaziale
Politecnico di Milano