Question regarding SAML attribute query

Hi All,

I am new SAML. I want to retrieve all the users that are present in my LDAP hierarchy. Is it possible using SAML? Does SAML supports it? If yes, is there any open source implementation which implements that feature.

I tried Shibboleth attribute query, but it is giving the attributes for a single user. Is it possible to get the attributes of multiple users in a given organization unit?

Please help me to understand the possibility.

Thank you in Advance.

- Pavan