--On Monday, May 04, 2015 3:08 PM +0200 Frank Offermanns

<Frank.Offermanns@caseris.de> wrote:

> Hello,

>

> in our custom schema we have used several attributes with the syntax:

> 1.3.6.1.4.1.1466.115.121.1.5

> attributetype ( myAttributeType:106 NAME ( 'casFileContent' )

>         DESC 'Contains the file'

>         SYNTAX 1.3.6.1.4.1.1466.115.121.1.5

>         SINGLE-VALUE )

>

> We defined this schema before this syntax was dropped.

>

> Everything worked for a long time. Now with OpenLDAP Version 2.4.39
and

> newer a slapcat does  no longer export this attributes as MimeContent,

> but as plain text. So the ldif can't be used for importing. So I started

> a research why and found that this syntax was dropped. But for downward

> compatibility shouldn't it still export this syntax as mime content,

> shouldt it?

> This would be important, since in inetorgperson.schema the 2 attributes

> userSMIMECertificate and userPKCS12 still use it.

>

> What syntax should I use for files stored in LDAP?

> And even more important, how can I change the syntax of a attribute.
Is

> there a migration strategy to change the syntax of a attribute?

Hi Frank,

A couple of things:

a) I don't see any ITS filed for this issue.  Generally that means
if this 

is a real bug, nothing will/can be fixed, since it hasn't been reported
as 

a problem.

b) I still see that this syntax is part of inetorgperson.schema and in

schema_init.c

static slap_syntax_defs_rec syntax_defs[] = {

        {"( 1.3.6.1.4.1.1466.115.121.1.5 DESC
'Binary' "

                X_NOT_H_R ")",

                SLAP_SYNTAX_BER,
NULL, berValidate, NULL},

so it appears to me that it still exists as a valid syntax, using 

SLAP_SYNTAX_BER?

--Quanah

--

Quanah Gibson-Mount

Platform Architect

Zimbra, Inc.

--------------------

Zimbra ::  the leader in open source messaging and collaboration