Function query_root_dse 

pub async fn query_root_dse(
    ldap: &mut Ldap,
) -> Result<Option<RootDSE>, LdapOperationError>

retrieve the RootDSE from an LDAP server using ldap3

Errors

Returns LdapOperationError if the LDAP search fails, or if a required attribute is missing from the RootDSE entry, or if an OID cannot be parsed.