(ITS#5092) page size value of 1.2.840.113556.1.4.319 control

[randolf.werner@sap.com]

Full_Name: Randolf Werner 
Version: 2.3.35
OS: Windows XP
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (155.56.68.221)


Hi,
i just have found the following compatibilty issue when using the
1.2.840.113556.1.4.319 control (http://www.ietf.org/rfc/rfc2696.txt) supported
by slapd. According to Microsoft and IBM LDAP API ldap_create_page_control

http://msdn2.microsoft.com/en-us/library/aa366547.aspx
http://publib.boulder.ibm.com/infocenter/iseries/v5r3/index.jsp?topic=/apis/ldap_create_page_control.htm

the page size parameter should be an 32 Bit unsigned integer, however the RFC
specifies it as "(INTEGER (0..maxInt)". Therefore our LDAP client uses 2**32-1
as default page size value. This works fine with Microsoft Active Directroy for
many years but fails with "Protocol Error" (Error 2) when using slapd. Our
workaround is to use 2**31-1 as default value in our client. I am not sure which
implementation is correct, anyway it is a compatibility issue for ldap clients
and might be "fixed" to improve compatibility.

Best regards
    Randolf