Please Help: How to Authenticate the user using Referral server

["Digambar Sawant" <digambar49@gmail.com>]

Hi,

 

I am doing following steps in order to authenticate the user in my C program using OpenLdap API:

 

Program 1:

1. ldap init

2. ldap set option to version3

3. search the user using ldap_search_st to get the user DN

4. ldap simple bind with user-DN and password

 

 

Now I want to use referral chasing feature.

For above program ldap search at step 3 returns NULL if user is not available

 

Therefore, I added rebindproc function to search the user-DN on other server

The program is changed to:

 

Program 2:

1. ldap init server1

2. ldap set option to version3

3. ldap set option to rebindproc function

4. search the user using ldap_search_st to get the user DN

5. ldap simple bind with user-DN and password

 

In rebindproc, I am binding with root credentials and parsing referral URL to get the base DN.

Here, I got the user-DN from refered server (server 2) in step 4.

However, ldap simple bind at step 5 fails saying invalid credentials.

It is correct, since the user is not present on server1.

 

Is there anything more I need to do, so that ldap_simple bind will happen with referral server (server2).

What API shall I use to bind the user-DN to referral server?

 

Thanks,

Digambar