DP: Introduce new interface for backend

Terminology:
* Backend: Implemenation of domain
* Data Provider: interface between backend and responders
* Module: ldap/ipa/ad/... dlopened library that implements dp interface
* Target: id/autofs/sudo/... functionality of module

Benefits over current code:
* data provider is a black box completely separated from backend
* method handlers are just simple tevent requests on backend side
* no need of spy on be_client
* simplified and error proof adding of new responders
* simplified adding of new methods
* reply to D-Bus message is completely handled by DP code
* each target can have several methods defined
* properties can be added on objects
* each method can have output parameters
* modules now support constructor
* improved debugging
* clear memory hierarchy
* ability to chain requests
* type safe private data

Reviewed-by: Sumit Bose <sbose@redhat.com>
Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/providers/data_provider/dp_sbus.c b/src/providers/data_provider/dp_sbus.c
new file mode 100644
index 000000000..623d7dd9c
--- /dev/null
+++ b/src/providers/data_provider/dp_sbus.c
@@ -0,0 +1,46 @@
+/*
+   SSSD
+
+   Data Provider Helpers
+
+   Copyright (C) Stephen Gallagher <sgallagh@redhat.com>	2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+#include <talloc.h>
+#include <tevent.h>
+
+#include "confdb/confdb.h"
+#include "sbus/sssd_dbus.h"
+#include "providers/data_provider.h"
+
+int dp_get_sbus_address(TALLOC_CTX *mem_ctx,
+                        char **address, const char *domain_name)
+{
+    char *default_address;
+
+    *address = NULL;
+    default_address = talloc_asprintf(mem_ctx, "unix:path=%s/%s_%s",
+                                      PIPE_PATH, DATA_PROVIDER_PIPE,
+                                      domain_name);
+    if (default_address == NULL) {
+        return ENOMEM;
+    }
+
+    *address = default_address;
+    return EOK;
+}
+