DP: Refactor responder_dp_req so it's reusable by other responders

* the internal request is now more generic and is decoupled from
  account-specific data. There is a new sss_dp_issue_request() wrapper
  that issues a BE request or registers a callback
* the public requests all use struct sss_dp_req_state as the tevent_req
  state data. This allows to report back data from the internal request
  even if the caller is just a callback notifier
* each specific request now uses an _info structure that contains all
  the data necessary to construct a DBusMessage passed to provider
* each specific request now defines a sss_dp_get_$data_msg callback that
  is called from the sss_dp_issue_request() common wraper. The purpose
  of the wrapper is to construct a DBusMessage and bind it to a DBus
  method so the message can be just sent over to back end

The miscellanous changes include:
* change SSS_DP_ constants to an enum. This way, a switch() would error
  if a value is not handled.
* rename sss_dp_get_account_int_send() to sss_dp_internal_get_send()
  request because the internal request is going to handle more than just
  account data
* the DBus return values were renamed from err_maj, err_min to dp_err
  and dp_ret respectively

0 files changed, 0 insertions, 0 deletions