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Re: get_ava: illegal value with translucent proxy

Petteri Heinonen wrote:
Pierangelo Masarati [masarati@aero.polimi.it] wrote:
Petteri Heinonen wrote:
> Hi, I've setup a translucent proxy. Now, I have tried to do some test > searches. For example this works ok: > > ldapsearch -x -W -D "cn=admin,dc=company,dc=com" -b > "OU=Users,OU=Department,DC=company,DC=com" "(givenName=Myname)" > > Search is proxied through proxy to the actual server, and correct result > is returned. However, if I try this: > > ldapsearch -x -W -D "cn=admin,dc=company,dc=com" -b > "OU=Users,OU=Department,DC=company,DC=com" "(objectClass=User)" > > I get no results. I have monitored the traffic between proxy and backend > server, and the query is not even sent there. In OpenLDAP log there is:
> > Jul 27 15:51:00 ldaptr01 slapd[17772]: begin get_filter
> Jul 27 15:51:00 ldaptr01 slapd[17772]: EQUALITY
> Jul 27 15:51:00 ldaptr01 slapd[17772]: get_ava: illegal value for > attributeType objectClass
> Jul 27 15:51:00 ldaptr01 slapd[17772]: end get_filter 0
> > What would be the problem here?

The objectClass "User" is not defined in the proxy's schema?


That's correct. But in translucent overlay's documentation, there is:

"Note: The Translucent Proxy overlay will disable schema checking in the local database, so that an entry consisting of overlay attributes need not adhere to the complete schema."

But it seems that schema checking is still in affect when doing searches. Is there a way to disable local schema checking altogether? Or do I have to build some dummy schema so that OpenLDAP is aware about objectClasses I want to search for?

What happens is that you use unknown schema items in the *filter*, which requires it to be known in order to apply appropriate matching rules and so. The schema relaxation in the documentation refers to enforcing adherence with allowed and required attributes of an objectclass, and with stored objectclasses complying with structural inheritance relationship. Schema items need to be known anyway.