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Bug #19281 OpenLDAP 2.1.4 requires version
Submitted: 2002-09-07 10:37 UTC Modified: 2002-09-09 09:34 UTC
From: mose at ns dot cune dot edu Assigned:
Status: Not a bug Package: LDAP related
PHP Version: 4CVS-2002-09-07 OS: RH 7.3, 2.4.19
Private report: No CVE-ID: None
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 [2002-09-07 10:37 UTC] mose at ns dot cune dot edu 
imap-2002.RC5
Apache 2.0.40
mysql 3.23.49
openldap 2.1.4

configure --with-apxs2=/local/apache/bin/apxs --enable-force-cgi-redirect --disable-cli --with-imap=/home/mose/imap-2002.RC5 --with-ldap --with-mysql=/local/mysql

It appears that since version 2.1.3 of openldap, it requires that the LDAP version be set to 3 when making a connection.  The php routines do not set the version.  The following lines inserted in ext/ldap/ldap.c in the function ldap_connect() seem to work for me.

    int version;

and then inside #ifdef LDAP_API_FEATURE_X_OPENLDAP

                ldap = ldap_init(host, port);
        }
    version = LDAP_VERSION3;
    (void)ldap_set_option (ldap, LDAP_OPT_PROTOCOL_VERSION, &version);
#else

Everyone should probably be using version 3.  However, you may want to allow the version to be specified at configuration time or allow the version to be specified in php with the ldap_connect() call, with a default of version 3.

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 [2002-09-09 01:44 UTC] venaas@php.net 
I see your reasoning, but I'm opposed to this change. PHP
always defaulted to v2 since the LDAP library did, and if
one used v3 server one had to set the version. To use v3
do as follows before binding:

ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
 [2002-09-09 05:03 UTC] sniper@php.net 
Not a bug..
 [2002-09-09 09:31 UTC] mose at ns dot cune dot edu 
Your decision violates the law of least surprise.  Allowing a default version to be specified at compile time would be the more prudent option.  Otherwise a lot of PHP software using LDAP will break when OpenLDAP and PHP are upgraded.
 [2002-09-09 09:34 UTC] derick@php.net 
Only when ldap is updated... not when PHP is updated alone.

Derick
 
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