non-ascii characters in legacyExchangeDN

Bruno Pereira bpereira at
Tue Dec 18 03:20:12 MST 2012

Hello Andrew,

Thanks for the quick response :)

Best regards

On 12/17/2012 09:13 PM, Andrew Bartlett wrote:
> On Mon, 2012-12-17 at 17:35 +0000, Bruno Pereira wrote:
>> Hello,
>> I've a problem to join samba4 (final version) to windows server 2003 R1 
>> . I get the following error message:
>> ...
>> ldb_handler_fold: unable to casefold string [/o=MAILSAMBA/ou=First
>> Administrative Group/cn=Recipients/cn=Ext_Fátima_Goncalves]
>> Failed to apply records: ../lib/ldb/ldb_tdb/ldb_index.c:1198: Failed to
>> re-index legacyExchangeDN in
>> CN=Ext_Fátima_Goncalves,OU=CENARIO-C,DC=cena-c,DC=pt- Failed to create
>> index key for atribute 'legacyExchangeDN': Unknown error: Operations error
>> Failed to commit objects:WERR_GENERAL_FAILURE
>> join failed -cleaning up
>> ...
>> In the samba RC5 happend the same error.
>> Someone could help me?
> This is very interesting.  What is happening is that we seem to be
> unable to upper case the Ext_Fátima_Goncalves part of the DN.  It may be
> that the string sent to us is not in fact UTF8 (perhaps it was created
> in a national code page?), or something else prevents correct
> transformation.
> Unlike other strings in Active Directory, this is not handled as a
> string by our replication code, so it is not translated between UTF8 and
> UTF16 by DRSUAPI.  Also, these posts indicate that this record is meant
> to be ASCII (or less) only, probably as a kludge to avoid the issues of
> asserting which code page this actually is.
> The issue for us is that without knowing which character set this is in
> (and it clearly not being UTF8), how can we obtain or what should be the
> canonical form for index comparisons?  (We use upper case as the
> canonical form). 
> The result is probably much the same as what you see with Exchange
> above, that these records don't actually work, just that we error out at
> a different layer. 
> Andrew Bartlett

Bruno Pereira
/IPBrick I&D Dpt/ 	<>
IPBRICK International
Rua Passos Manuel, 66/76
4000-381 Porto
Portugal 	TEL: +351 221 207 100
FAX: +351 225 189 722
UCoIP: bpereira at <mailto:bpereira at> <> <> 	Facebook
<> Twitter
<> Linked In

More information about the samba-technical mailing list