LDAP: Allow passing a NULL map to sdap_search_bases_ex_send NULL attribute map and a NULL list of attributes should translate into "fetch all entry attributes" Required for: https://pagure.io/SSSD/sssd/issue/3378 Reviewed-by: Pavel Březina <pbrezina@redhat.com>

sdap ops: add support for deref Reviewed-by: Sumit Bose <sbose@redhat.com> Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

sdap_search_bases: allow returning only the first reply In some cases we want to cycle through all search bases but stop iterating when we get first non-empty reply. Reviewed-by: Sumit Bose <sbose@redhat.com> Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

sdap_search_bases: allow map to be NULL In some cases we do not want any attribute translations. Reviewed-by: Sumit Bose <sbose@redhat.com> Reviewed-by: Jakub Hrozek <jhrozek@redhat.com> Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

SDAP: Add request that iterates over all search bases We often need to iterate over many search bases but we always use mostly copy&paste iterator. This will reduce code duplication and simplify code flow. Reviewed-by: Sumit Bose <sbose@redhat.com>