From: Daniel Wagner <daniel.wag...@bmw-carit.de>

---
 include/dbus.h |  9 +++++++
 src/dbus.c     | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)

diff --git a/include/dbus.h b/include/dbus.h
index 07b44ab..cb4d34c 100644
--- a/include/dbus.h
+++ b/include/dbus.h
@@ -171,6 +171,15 @@ static inline void 
connman_dbus_dict_append_fixed_array(DBusMessageIter *dict,
 dbus_bool_t connman_dbus_validate_ident(const char *ident);
 char *connman_dbus_encode_string(const char *value);
 
+typedef void (* connman_dbus_get_connection_unix_user_cb_t) (int error,
+                                                       unsigned int uid,
+                                                       void *user_data);
+
+int connman_dbus_get_connection_unix_user(DBusConnection *connection,
+                               const char *bus_name,
+                               connman_dbus_get_connection_unix_user_cb_t cb,
+                               void *user_data);
+
 typedef void (* connman_dbus_get_context_cb_t) (int error,
                                                const unsigned char *context,
                                                void *user_data);
diff --git a/src/dbus.c b/src/dbus.c
index 7c69b87..63d189e 100644
--- a/src/dbus.c
+++ b/src/dbus.c
@@ -406,6 +406,90 @@ dbus_bool_t 
__connman_dbus_append_objpath_dict_array(DBusMessage *msg,
        return TRUE;
 }
 
+static void get_connection_unix_user_reply(DBusPendingCall *call, void 
*user_data)
+{
+       struct cb_data *cbd = user_data;
+       connman_dbus_get_connection_unix_user_cb_t cb = cbd->cb;
+       DBusMessageIter iter;
+       DBusMessage *reply;
+       unsigned char *context = NULL;
+       int err = 0;
+       unsigned int uid;
+
+       reply = dbus_pending_call_steal_reply(call);
+
+       if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
+               DBG("Failed to retrieve SELinux context");
+               err = -EIO;
+               goto done;
+       }
+
+       if (dbus_message_has_signature(reply, "u") == FALSE) {
+               DBG("Message signature is wrong");
+               err = -EINVAL;
+               goto done;
+       }
+
+       dbus_message_iter_init(reply, &iter);
+       dbus_message_iter_get_basic(&iter, &uid);
+
+done:
+       (*cb)(err, uid, cbd->user_data);
+
+       dbus_message_unref(reply);
+
+       dbus_pending_call_unref(call);
+}
+
+int connman_dbus_get_connection_unix_user(DBusConnection *connection,
+                               const char *bus_name,
+                               connman_dbus_get_connection_unix_user_cb_t cb,
+                               void *user_data)
+{
+       struct cb_data *cbd = cb_data_new(cb, user_data);
+       DBusPendingCall *call;
+       DBusMessage *msg = NULL;
+       int err;
+
+       msg = dbus_message_new_method_call(DBUS_SERVICE_DBUS, DBUS_PATH_DBUS,
+                                       DBUS_INTERFACE_DBUS,
+                                       "GetConnectionUnixUser");
+       if (msg == NULL) {
+               DBG("Can't allocate new message");
+               err = -ENOMEM;
+               goto err;
+       }
+
+       dbus_message_append_args(msg, DBUS_TYPE_STRING, &bus_name,
+                                       DBUS_TYPE_INVALID);
+
+       if (dbus_connection_send_with_reply(connection, msg,
+                                               &call, -1) == FALSE) {
+               DBG("Failed to execute method call");
+               err = -EINVAL;
+               goto err;
+       }
+
+       if (call == NULL) {
+               DBG("D-Bus connection not available");
+               err = -EINVAL;
+               goto err;
+       }
+
+       dbus_pending_call_set_notify(call, get_connection_unix_user_reply,
+                                                       cbd, g_free);
+
+       dbus_message_unref(msg);
+
+       return 0;
+
+err:
+       dbus_message_unref(msg);
+       g_free(cbd);
+
+       return err;
+}
+
 static unsigned char *parse_context(DBusMessage *msg)
 {
        DBusMessageIter iter, array;
-- 
1.8.1.3.566.gaa39828

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