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Re: OpenLDAP as an address book for MS Outlook
Mark Coetser wrote:
> >
> >>>> the problem can be that Outlook use SSSVLV controls on attributes
> >>>> without ordering rules in OpenLDAP. Unfortunately, the 'name'
> >>>> attribute has no ordering rules, so you can't sort results on name
> >>>> (this includes, cn, sn, gn attributes, because they inherit from
> >>>> name). We do not have this limitation on AD (but it breaks LDAP
> >>>> standard).
> >>>
> >>> I don't care about LDAP standard in this particular installation.
> >>> I need an OpenLDAP server at this site only as a shared address book,
> >>> it will perform no other function and will never interoperate with
> >>> anything else.
> >>>
> >>>>
> >>>>
> >>>> You can't use server side sort control on cn or sn in OpenLDAP, this
> >>>> will always return an error because there is no ordering rule for
> >>>> these attributes.
> >>>
> >>> So if OpenLDAP can be tweaked to provide server side sort control on
> >>> cn or sn, I would go for it. Can it be done by modifying the 'name'
> >>> attribute in the core.schema? Or by a patch?
> >>
> >> You can try to patch schema_prep.c in OpenLDAP source, find the 'name'
> >> attribute definition and add caseIgnoreOrderingMatch ordering rule to
> >> it.
> >>
> >> You then need to rebuild OpenLDAP from sources.
> >
> > Hurrah! It seems to be working. At least I can now browse the small
> > test addressbook I have created for test purposes. Many thanks to you
> > and to all the community for this advice.
> >
> > Should I expect any problems with slapd because of this patch? Like
> > unexpected coredumps, corrupted database etc?
> >
>
> Please can you post your patch file as well.
It's outrageously simple. I was surprised I could not redefine the
properties of the 'name' attribute in the runtime config and had to
recompile slapd.
--- ./openldap-2.4.33/servers/slapd/schema_prep.c.orig 2012-12-07 09:54:56.000000000 +0700
+++ ./openldap-2.4.33/servers/slapd/schema_prep.c 2012-12-07 09:58:10.000000000 +0700
@@ -908,6 +908,7 @@
"DESC 'RFC4519: common supertype of name attributes' "
"EQUALITY caseIgnoreMatch "
"SUBSTR caseIgnoreSubstringsMatch "
+ "ORDERING caseIgnoreOrderingMatch "
"SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} )",
NULL, SLAP_AT_ABSTRACT,
NULL, NULL,
--
Victor Sudakov, VAS4-RIPE, VAS47-RIPN
sip:sudakov@sibptus.tomsk.ru