Can i Establish Local File Server with samba4

[hesam mohamadian]

Hello , I want to establish local File Server that user and password saved
in *ldap* and my user share  directory Map to user Windows Client After
Athenticating But I Want Integerated DataBase (for username and pass) can
use *samba4 for Authenticating* and *Samba3 for sharing and Mapping* User
Folder Simultaneously ?
(All OF My Network Client Can Use Share Folder After Authenticating whether
His Clint is Joined Or Not Joined )
Thanks