Consistently include <config.h> in all C source files and never in header files.
[platform/upstream/dbus.git] / bus / driver.c
index dc64039..0dcfdaa 100644 (file)
@@ -1,8 +1,8 @@
-/* -*- mode: C; c-file-style: "gnu" -*- */
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 /* driver.c  Bus client (driver)
  *
  * Copyright (C) 2003 CodeFactory AB
- * Copyright (C) 2003, 2004 Red Hat, Inc.
+ * Copyright (C) 2003, 2004, 2005 Red Hat, Inc.
  *
  * Licensed under the Academic Free License version 2.1
  * 
  * 
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 
+#include <config.h>
 #include "activation.h"
 #include "connection.h"
 #include "driver.h"
 #include "dispatch.h"
 #include "services.h"
+#include "selinux.h"
 #include "signals.h"
 #include "utils.h"
 #include <dbus/dbus-string.h>
 #include <dbus/dbus-internals.h>
+#include <dbus/dbus-message.h>
+#include <dbus/dbus-marshal-recursive.h>
 #include <string.h>
 
 static dbus_bool_t bus_driver_send_welcome_message (DBusConnection *connection,
@@ -47,18 +51,19 @@ bus_driver_send_service_owner_changed (const char     *service_name,
 {
   DBusMessage *message;
   dbus_bool_t retval;
-  const char null_service[] = { '\000' };
+  const char *null_service;
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-  
-  _dbus_verbose ("sending service owner changed: %s [%s -> %s]\n",
+
+  null_service = "";
+  _dbus_verbose ("sending name owner changed: %s [%s -> %s]\n",
                  service_name, 
                  old_owner ? old_owner : null_service, 
                  new_owner ? new_owner : null_service);
 
-  message = dbus_message_new_signal (DBUS_PATH_ORG_FREEDESKTOP_DBUS,
-                                     DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
-                                     "ServiceOwnerChanged");
+  message = dbus_message_new_signal (DBUS_PATH_DBUS,
+                                     DBUS_INTERFACE_DBUS,
+                                     "NameOwnerChanged");
   
   if (message == NULL)
     {
@@ -66,13 +71,13 @@ bus_driver_send_service_owner_changed (const char     *service_name,
       return FALSE;
     }
   
-  if (!dbus_message_set_sender (message, DBUS_SERVICE_ORG_FREEDESKTOP_DBUS))
+  if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS))
     goto oom;
 
   if (!dbus_message_append_args (message,
-                                 DBUS_TYPE_STRING, service_name,
-                                 DBUS_TYPE_STRING, old_owner ? old_owner : null_service,
-                                 DBUS_TYPE_STRING, new_owner ? new_owner : null_service,
+                                 DBUS_TYPE_STRING, &service_name,
+                                 DBUS_TYPE_STRING, old_owner ? &old_owner : &null_service,
+                                 DBUS_TYPE_STRING, new_owner ? &new_owner : &null_service,
                                  DBUS_TYPE_INVALID))
     goto oom;
 
@@ -99,9 +104,9 @@ bus_driver_send_service_lost (DBusConnection *connection,
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
   
-  message = dbus_message_new_signal (DBUS_PATH_ORG_FREEDESKTOP_DBUS,
-                                     DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
-                                     "ServiceLost");
+  message = dbus_message_new_signal (DBUS_PATH_DBUS,
+                                     DBUS_INTERFACE_DBUS,
+                                     "NameLost");
   
   if (message == NULL)
     {
@@ -111,7 +116,7 @@ bus_driver_send_service_lost (DBusConnection *connection,
   
   if (!dbus_message_set_destination (message, bus_connection_get_name (connection)) ||
       !dbus_message_append_args (message,
-                                 DBUS_TYPE_STRING, service_name,
+                                 DBUS_TYPE_STRING, &service_name,
                                  DBUS_TYPE_INVALID))
     {
       dbus_message_unref (message);
@@ -142,9 +147,9 @@ bus_driver_send_service_acquired (DBusConnection *connection,
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
   
-  message = dbus_message_new_signal (DBUS_PATH_ORG_FREEDESKTOP_DBUS,
-                                     DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
-                                     "ServiceAcquired");
+  message = dbus_message_new_signal (DBUS_PATH_DBUS,
+                                     DBUS_INTERFACE_DBUS,
+                                     "NameAcquired");
 
   if (message == NULL)
     {
@@ -154,7 +159,7 @@ bus_driver_send_service_acquired (DBusConnection *connection,
   
   if (!dbus_message_set_destination (message, bus_connection_get_name (connection)) ||
       !dbus_message_append_args (message,
-                                 DBUS_TYPE_STRING, service_name,
+                                 DBUS_TYPE_STRING, &service_name,
                                  DBUS_TYPE_INVALID))
     {
       dbus_message_unref (message);
@@ -305,12 +310,10 @@ bus_driver_handle_hello (DBusConnection *connection,
 
   /* Create the service */
   service = bus_registry_ensure (registry,
-                                 &unique_name, connection, transaction, error);
+                                 &unique_name, connection, 0, transaction, error);
   if (service == NULL)
     goto out_0;
   
-  bus_service_set_prohibit_replacement (service, TRUE);
-
   _dbus_assert (bus_connection_is_active (connection));
   retval = TRUE;
   
@@ -341,7 +344,7 @@ bus_driver_send_welcome_message (DBusConnection *connection,
     }
   
   if (!dbus_message_append_args (welcome,
-                                 DBUS_TYPE_STRING, name,
+                                 DBUS_TYPE_STRING, &name,
                                  DBUS_TYPE_INVALID))
     {
       dbus_message_unref (welcome);
@@ -349,7 +352,7 @@ bus_driver_send_welcome_message (DBusConnection *connection,
       return FALSE;
     }
 
-  _dbus_assert (dbus_message_has_signature (welcome, "s"));
+  _dbus_assert (dbus_message_has_signature (welcome, DBUS_TYPE_STRING_AS_STRING));
   
   if (!bus_transaction_send_from_driver (transaction, connection, welcome))
     {
@@ -374,6 +377,9 @@ bus_driver_handle_list_services (DBusConnection *connection,
   int len;
   char **services;
   BusRegistry *registry;
+  int i;
+  DBusMessageIter iter;
+  DBusMessageIter sub;
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
   
@@ -392,10 +398,12 @@ bus_driver_handle_list_services (DBusConnection *connection,
       BUS_SET_OOM (error);
       return FALSE;
     }
+
+  dbus_message_iter_init_append (reply, &iter);
   
-  if (!dbus_message_append_args (reply,
-                                 DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, services, len,
-                                 DBUS_TYPE_INVALID))
+  if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
+                                         DBUS_TYPE_STRING_AS_STRING,
+                                         &sub))
     {
       dbus_free_string_array (services);
       dbus_message_unref (reply);
@@ -403,7 +411,41 @@ bus_driver_handle_list_services (DBusConnection *connection,
       return FALSE;
     }
 
+  {
+    /* Include the bus driver in the list */
+    const char *v_STRING = DBUS_SERVICE_DBUS;
+    if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING,
+                                         &v_STRING))
+      {
+        dbus_free_string_array (services);
+        dbus_message_unref (reply);
+        BUS_SET_OOM (error);
+        return FALSE;
+      }
+  }
+  
+  i = 0;
+  while (i < len)
+    {
+      if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING,
+                                           &services[i]))
+        {
+          dbus_free_string_array (services);
+          dbus_message_unref (reply);
+          BUS_SET_OOM (error);
+          return FALSE;
+        }
+      ++i;
+    }
+
   dbus_free_string_array (services);
+
+  if (!dbus_message_iter_close_container (&iter, &sub))
+    {
+      dbus_message_unref (reply);
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
   
   if (!bus_transaction_send_from_driver (transaction, connection, reply))
     {
@@ -419,6 +461,99 @@ bus_driver_handle_list_services (DBusConnection *connection,
 }
 
 static dbus_bool_t
+bus_driver_handle_list_activatable_services (DBusConnection *connection,
+                                            BusTransaction *transaction,
+                                            DBusMessage    *message,
+                                            DBusError      *error)
+{
+  DBusMessage *reply;
+  int len;
+  char **services;
+  BusActivation *activation;
+  int i;
+  DBusMessageIter iter;
+  DBusMessageIter sub;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  activation = bus_connection_get_activation (connection);
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    {
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
+
+  if (!bus_activation_list_services (activation, &services, &len))
+    {
+      dbus_message_unref (reply);
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
+
+  dbus_message_iter_init_append (reply, &iter);
+
+  if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY,
+                                        DBUS_TYPE_STRING_AS_STRING,
+                                        &sub))
+    {
+      dbus_free_string_array (services);
+      dbus_message_unref (reply);
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
+
+  {
+    /* Include the bus driver in the list */
+    const char *v_STRING = DBUS_SERVICE_DBUS;
+    if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING,
+                                        &v_STRING))
+      {
+       dbus_free_string_array (services);
+       dbus_message_unref (reply);
+       BUS_SET_OOM (error);
+       return FALSE;
+      }
+  }
+
+  i = 0;
+  while (i < len)
+    {
+      if (!dbus_message_iter_append_basic (&sub, DBUS_TYPE_STRING,
+                                          &services[i]))
+       {
+         dbus_free_string_array (services);
+         dbus_message_unref (reply);
+         BUS_SET_OOM (error);
+         return FALSE;
+       }
+      ++i;
+    }
+
+  dbus_free_string_array (services);
+
+  if (!dbus_message_iter_close_container (&iter, &sub))
+    {
+      dbus_message_unref (reply);
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
+
+  if (!bus_transaction_send_from_driver (transaction, connection, reply))
+    {
+      dbus_message_unref (reply);
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
+  else
+    {
+      dbus_message_unref (reply);
+      return TRUE;
+    }
+}
+
+static dbus_bool_t
 bus_driver_handle_acquire_service (DBusConnection *connection,
                                    BusTransaction *transaction,
                                    DBusMessage    *message,
@@ -426,8 +561,8 @@ bus_driver_handle_acquire_service (DBusConnection *connection,
 {
   DBusMessage *reply;
   DBusString service_name;
-  char *name;
-  int service_reply;
+  const char *name;
+  dbus_uint32_t service_reply;
   dbus_uint32_t flags;
   dbus_bool_t retval;
   BusRegistry *registry;
@@ -442,7 +577,7 @@ bus_driver_handle_acquire_service (DBusConnection *connection,
                               DBUS_TYPE_INVALID))
     return FALSE;
   
-  _dbus_verbose ("Trying to own service %s with flags 0x%x\n", name, flags);
+  _dbus_verbose ("Trying to own name %s with flags 0x%x\n", name, flags);
   
   retval = FALSE;
   reply = NULL;
@@ -462,7 +597,7 @@ bus_driver_handle_acquire_service (DBusConnection *connection,
       goto out;
     }
 
-  if (!dbus_message_append_args (reply, DBUS_TYPE_UINT32, service_reply, DBUS_TYPE_INVALID))
+  if (!dbus_message_append_args (reply, DBUS_TYPE_UINT32, &service_reply, DBUS_TYPE_INVALID))
     {
       BUS_SET_OOM (error);
       goto out;
@@ -477,13 +612,73 @@ bus_driver_handle_acquire_service (DBusConnection *connection,
   retval = TRUE;
   
  out:
-  dbus_free (name);
   if (reply)
     dbus_message_unref (reply);
   return retval;
 } 
 
 static dbus_bool_t
+bus_driver_handle_release_service (DBusConnection *connection,
+                                   BusTransaction *transaction,
+                                   DBusMessage    *message,
+                                   DBusError      *error)
+{
+  DBusMessage *reply;
+  DBusString service_name;
+  const char *name;
+  dbus_uint32_t service_reply;
+  dbus_bool_t retval;
+  BusRegistry *registry;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  registry = bus_connection_get_registry (connection);
+
+  if (!dbus_message_get_args (message, error,
+                              DBUS_TYPE_STRING, &name,
+                              DBUS_TYPE_INVALID))
+    return FALSE;
+
+  _dbus_verbose ("Trying to release name %s\n", name);
+
+  retval = FALSE;
+  reply = NULL;
+
+  _dbus_string_init_const (&service_name, name);
+
+  if (!bus_registry_release_service (registry, connection,
+                                     &service_name, &service_reply,
+                                     transaction, error))
+    goto out;
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    {
+      BUS_SET_OOM (error);
+      goto out;
+    }
+
+  if (!dbus_message_append_args (reply, DBUS_TYPE_UINT32, &service_reply, DBUS_TYPE_INVALID))
+    {
+      BUS_SET_OOM (error);
+      goto out;
+    }
+
+  if (!bus_transaction_send_from_driver (transaction, connection, reply))
+    {
+      BUS_SET_OOM (error);
+      goto out;
+    }
+
+  retval = TRUE;
+
+ out:
+  if (reply)
+    dbus_message_unref (reply);
+  return retval;
+}
+
+static dbus_bool_t
 bus_driver_handle_service_exists (DBusConnection *connection,
                                   BusTransaction *transaction,
                                   DBusMessage    *message,
@@ -493,7 +688,7 @@ bus_driver_handle_service_exists (DBusConnection *connection,
   DBusString service_name;
   BusService *service;
   dbus_bool_t service_exists;
-  char *name;
+  const char *name;
   dbus_bool_t retval;
   BusRegistry *registry;
 
@@ -508,7 +703,7 @@ bus_driver_handle_service_exists (DBusConnection *connection,
 
   retval = FALSE;
 
-  if (strcmp (name, DBUS_SERVICE_ORG_FREEDESKTOP_DBUS) == 0)
+  if (strcmp (name, DBUS_SERVICE_DBUS) == 0)
     {
       service_exists = TRUE;
     }
@@ -527,7 +722,7 @@ bus_driver_handle_service_exists (DBusConnection *connection,
     }
 
   if (!dbus_message_append_args (reply,
-                                 DBUS_TYPE_BOOLEAN, service_exists,
+                                 DBUS_TYPE_BOOLEAN, &service_exists,
                                  0))
     {
       BUS_SET_OOM (error);
@@ -545,7 +740,6 @@ bus_driver_handle_service_exists (DBusConnection *connection,
  out:
   if (reply)
     dbus_message_unref (reply);
-  dbus_free (name);
 
   return retval;
 }
@@ -557,7 +751,7 @@ bus_driver_handle_activate_service (DBusConnection *connection,
                                     DBusError      *error)
 {
   dbus_uint32_t flags;
-  char *name;
+  const char *name;
   dbus_bool_t retval;
   BusActivation *activation;
 
@@ -571,7 +765,7 @@ bus_driver_handle_activate_service (DBusConnection *connection,
                               DBUS_TYPE_INVALID))
     {
       _DBUS_ASSERT_ERROR_IS_SET (error);
-      _dbus_verbose ("No memory to get arguments to ActivateService\n");
+      _dbus_verbose ("No memory to get arguments to StartServiceByName\n");
       return FALSE;
     }
 
@@ -588,7 +782,6 @@ bus_driver_handle_activate_service (DBusConnection *connection,
   retval = TRUE;
   
  out:
-  dbus_free (name);
   return retval;
 }
 
@@ -600,6 +793,9 @@ send_ack_reply (DBusConnection *connection,
 {
   DBusMessage *reply;
 
+  if (dbus_message_get_no_reply (message))
+    return TRUE;
+
   reply = dbus_message_new_method_return (message);
   if (reply == NULL)
     {
@@ -620,13 +816,140 @@ send_ack_reply (DBusConnection *connection,
 }
 
 static dbus_bool_t
+bus_driver_handle_update_activation_environment (DBusConnection *connection,
+                                                 BusTransaction *transaction,
+                                                 DBusMessage    *message,
+                                                 DBusError      *error)
+{
+  dbus_bool_t retval;
+  BusActivation *activation;
+  DBusMessageIter iter;
+  DBusMessageIter dict_iter;
+  DBusMessageIter dict_entry_iter;
+  int msg_type;
+  int array_type;
+  int key_type;
+  DBusList *keys, *key_link;
+  DBusList *values, *value_link;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  activation = bus_connection_get_activation (connection);
+
+  dbus_message_iter_init (message, &iter);
+
+  /* The message signature has already been checked for us,
+   * so let's just assert it's right.
+   */
+  msg_type = dbus_message_iter_get_arg_type (&iter);
+
+  _dbus_assert (msg_type == DBUS_TYPE_ARRAY);
+
+  dbus_message_iter_recurse (&iter, &dict_iter);
+
+  retval = FALSE;
+
+  /* Then loop through the sent dictionary, add the location of
+   * the environment keys and values to lists. The result will
+   * be in reverse order, so we don't have to constantly search
+   * for the end of the list in a loop.
+   */
+  keys = NULL;
+  values = NULL;
+  while ((array_type = dbus_message_iter_get_arg_type (&dict_iter)) == DBUS_TYPE_DICT_ENTRY)
+    {
+      dbus_message_iter_recurse (&dict_iter, &dict_entry_iter);
+
+      while ((key_type = dbus_message_iter_get_arg_type (&dict_entry_iter)) == DBUS_TYPE_STRING)
+        {
+          char *key;
+          char *value;
+          int value_type;
+
+          dbus_message_iter_get_basic (&dict_entry_iter, &key);
+          dbus_message_iter_next (&dict_entry_iter);
+
+          value_type = dbus_message_iter_get_arg_type (&dict_entry_iter);
+
+          if (value_type != DBUS_TYPE_STRING)
+            break;
+
+          dbus_message_iter_get_basic (&dict_entry_iter, &value);
+
+          if (!_dbus_list_append (&keys, key))
+            {
+              BUS_SET_OOM (error);
+              break;
+            }
+
+          if (!_dbus_list_append (&values, value))
+            {
+              BUS_SET_OOM (error);
+              break;
+            }
+
+          dbus_message_iter_next (&dict_entry_iter);
+        }
+
+      if (key_type != DBUS_TYPE_INVALID)
+        break;
+
+      dbus_message_iter_next (&dict_iter);
+    }
+
+  if (array_type != DBUS_TYPE_INVALID)
+    goto out;
+
+  _dbus_assert (_dbus_list_get_length (&keys) == _dbus_list_get_length (&values));
+
+  key_link = keys;
+  value_link = values;
+  while (key_link != NULL)
+  {
+      const char *key;
+      const char *value;
+
+      key = key_link->data;
+      value = value_link->data;
+
+      if (!bus_activation_set_environment_variable (activation,
+                                                    key, value, error))
+      {
+          _DBUS_ASSERT_ERROR_IS_SET (error);
+          _dbus_verbose ("bus_activation_set_environment_variable() failed\n");
+          break;
+      }
+      key_link = _dbus_list_get_next_link (&keys, key_link);
+      value_link = _dbus_list_get_next_link (&values, value_link);
+  }
+
+  /* FIXME: We can fail early having set only some of the environment variables,
+   * (because of OOM failure).  It's sort of hard to fix and it doesn't really
+   * matter, so we're punting for now.
+   */
+  if (key_link != NULL)
+    goto out;
+
+  if (!send_ack_reply (connection, transaction,
+                       message, error))
+    goto out;
+
+  retval = TRUE;
+
+ out:
+  _dbus_list_clear (&keys);
+  _dbus_list_clear (&values);
+  return retval;
+}
+
+static dbus_bool_t
 bus_driver_handle_add_match (DBusConnection *connection,
                              BusTransaction *transaction,
                              DBusMessage    *message,
                              DBusError      *error)
 {
   BusMatchRule *rule;
-  char *text;
+  const char *text;
   DBusString str;
   BusMatchmaker *matchmaker;
   
@@ -677,7 +1000,6 @@ bus_driver_handle_add_match (DBusConnection *connection,
     }
   
   bus_match_rule_unref (rule);
-  dbus_free (text);
   
   return TRUE;
 
@@ -685,8 +1007,6 @@ bus_driver_handle_add_match (DBusConnection *connection,
   _DBUS_ASSERT_ERROR_IS_SET (error);
   if (rule)
     bus_match_rule_unref (rule);
-  if (text)
-    dbus_free (text);
   return FALSE;
 }
 
@@ -697,7 +1017,7 @@ bus_driver_handle_remove_match (DBusConnection *connection,
                                 DBusError      *error)
 {
   BusMatchRule *rule;
-  char *text;
+  const char *text;
   DBusString str;
   BusMatchmaker *matchmaker;
   
@@ -733,7 +1053,6 @@ bus_driver_handle_remove_match (DBusConnection *connection,
     goto failed;
 
   bus_match_rule_unref (rule);
-  dbus_free (text);
   
   return TRUE;
 
@@ -741,8 +1060,6 @@ bus_driver_handle_remove_match (DBusConnection *connection,
   _DBUS_ASSERT_ERROR_IS_SET (error);
   if (rule)
     bus_match_rule_unref (rule);
-  if (text)
-    dbus_free (text);
   return FALSE;
 }
 
@@ -752,7 +1069,7 @@ bus_driver_handle_get_service_owner (DBusConnection *connection,
                                     DBusMessage    *message,
                                     DBusError      *error)
 {
-  char *text;
+  const char *text;
   const char *base_name;
   DBusString str;
   BusRegistry *registry;
@@ -773,30 +1090,41 @@ bus_driver_handle_get_service_owner (DBusConnection *connection,
 
   _dbus_string_init_const (&str, text);
   service = bus_registry_lookup (registry, &str);
-  if (service == NULL)
+  if (service == NULL &&
+      _dbus_string_equal_c_str (&str, DBUS_SERVICE_DBUS))
+    {
+      /* ORG_FREEDESKTOP_DBUS owns itself */
+      base_name = DBUS_SERVICE_DBUS;
+    }
+  else if (service == NULL)
     {
       dbus_set_error (error, 
-                     DBUS_ERROR_SERVICE_HAS_NO_OWNER,
-                     "Could not get owner of service '%s': no such service", text);
+                      DBUS_ERROR_NAME_HAS_NO_OWNER,
+                      "Could not get owner of name '%s': no such name", text);
       goto failed;
     }
-
-  base_name = bus_connection_get_name (bus_service_get_primary_owner (service));
-  if (base_name == NULL)
+  else
     {
-      dbus_set_error (error,
-                     DBUS_ERROR_FAILED,
-                     "Could not determine base service for '%s'", text);
-      goto failed;
+      base_name = bus_connection_get_name (bus_service_get_primary_owners_connection (service));
+      if (base_name == NULL)
+        {
+          /* FIXME - how is this error possible? */
+          dbus_set_error (error,
+                          DBUS_ERROR_FAILED,
+                          "Could not determine unique name for '%s'", text);
+          goto failed;
+        }
+      _dbus_assert (*base_name == ':');      
     }
-  _dbus_assert (*base_name == ':');
+
+  _dbus_assert (base_name != NULL);
 
   reply = dbus_message_new_method_return (message);
   if (reply == NULL)
     goto oom;
 
   if (! dbus_message_append_args (reply, 
-                                 DBUS_TYPE_STRING, base_name,
+                                 DBUS_TYPE_STRING, &base_name,
                                  DBUS_TYPE_INVALID))
     goto oom;
   
@@ -804,7 +1132,6 @@ bus_driver_handle_get_service_owner (DBusConnection *connection,
     goto oom;
 
   dbus_message_unref (reply);
-  dbus_free (text);
 
   return TRUE;
 
@@ -815,72 +1142,99 @@ bus_driver_handle_get_service_owner (DBusConnection *connection,
   _DBUS_ASSERT_ERROR_IS_SET (error);
   if (reply)
     dbus_message_unref (reply);
-  dbus_free (text);
   return FALSE;
 }
 
 static dbus_bool_t
-bus_driver_handle_get_connection_unix_user (DBusConnection *connection,
-                                            BusTransaction *transaction,
-                                            DBusMessage    *message,
-                                            DBusError      *error)
+bus_driver_handle_list_queued_owners (DBusConnection *connection,
+                                     BusTransaction *transaction,
+                                     DBusMessage    *message,
+                                     DBusError      *error)
 {
-  char *service;
+  const char *text;
+  DBusList *base_names;
+  DBusList *link;
   DBusString str;
   BusRegistry *registry;
-  BusService *serv;
-  DBusConnection *conn;
+  BusService *service;
   DBusMessage *reply;
-  unsigned long uid;
-
+  DBusMessageIter iter, array_iter;
+  char *dbus_service_name = DBUS_SERVICE_DBUS;
+  
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
 
   registry = bus_connection_get_registry (connection);
 
-  service = NULL;
+  base_names = NULL;
+  text = NULL;
   reply = NULL;
 
   if (! dbus_message_get_args (message, error,
-                              DBUS_TYPE_STRING, &service,
+                              DBUS_TYPE_STRING, &text,
                               DBUS_TYPE_INVALID))
       goto failed;
 
-  _dbus_verbose ("asked for UID of connection %s\n", service);
-
-  _dbus_string_init_const (&str, service);
-  serv = bus_registry_lookup (registry, &str);
-  if (serv == NULL)
+  _dbus_string_init_const (&str, text);
+  service = bus_registry_lookup (registry, &str);
+  if (service == NULL &&
+      _dbus_string_equal_c_str (&str, DBUS_SERVICE_DBUS))
+    {
+      /* ORG_FREEDESKTOP_DBUS owns itself */
+      if (! _dbus_list_append (&base_names, dbus_service_name))
+        goto oom;
+    }
+  else if (service == NULL)
     {
       dbus_set_error (error, 
-                     DBUS_ERROR_SERVICE_HAS_NO_OWNER,
-                     "Could not get owner of service '%s': no such service", service);
+                      DBUS_ERROR_NAME_HAS_NO_OWNER,
+                      "Could not get owners of name '%s': no such name", text);
       goto failed;
     }
+  else
+    {
+      if (!bus_service_list_queued_owners (service, 
+                                           &base_names,
+                                           error))
+        goto failed;
+    }
 
-  conn = bus_service_get_primary_owner (serv);
+  _dbus_assert (base_names != NULL);
 
   reply = dbus_message_new_method_return (message);
   if (reply == NULL)
     goto oom;
 
-  if (!dbus_connection_get_unix_user (conn, &uid))
+  dbus_message_iter_init_append (reply, &iter);
+  if (!dbus_message_iter_open_container (&iter,
+                                         DBUS_TYPE_ARRAY,
+                                         DBUS_TYPE_STRING_AS_STRING,
+                                         &array_iter))
+    goto oom;
+  
+  link = _dbus_list_get_first_link (&base_names);
+  while (link != NULL)
     {
-      dbus_set_error (error,
-                      DBUS_ERROR_FAILED,
-                      "Could not determine UID for '%s'", service);
-      goto failed;
+      char *uname;
+
+      _dbus_assert (link->data != NULL);
+      uname = (char *)link->data;
+    
+      if (!dbus_message_iter_append_basic (&array_iter, 
+                                           DBUS_TYPE_STRING,
+                                           &uname))
+        goto oom;
+
+      link = _dbus_list_get_next_link (&base_names, link);
     }
 
-  if (! dbus_message_append_args (reply,
-                                  DBUS_TYPE_UINT32, (dbus_uint32_t) uid,
-                                  DBUS_TYPE_INVALID))
+  if (! dbus_message_iter_close_container (&iter, &array_iter))
     goto oom;
-
+                                    
   if (! bus_transaction_send_from_driver (transaction, connection, reply))
     goto oom;
 
   dbus_message_unref (reply);
-  dbus_free (service);
 
   return TRUE;
 
@@ -891,23 +1245,27 @@ bus_driver_handle_get_connection_unix_user (DBusConnection *connection,
   _DBUS_ASSERT_ERROR_IS_SET (error);
   if (reply)
     dbus_message_unref (reply);
-  dbus_free (service);
+
+  if (base_names)
+    _dbus_list_clear (&base_names);
+
   return FALSE;
 }
 
 static dbus_bool_t
-bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection,
-                                                 BusTransaction *transaction,
-                                                 DBusMessage    *message,
-                                                 DBusError      *error)
+bus_driver_handle_get_connection_unix_user (DBusConnection *connection,
+                                            BusTransaction *transaction,
+                                            DBusMessage    *message,
+                                            DBusError      *error)
 {
-  char *service;
+  const char *service;
   DBusString str;
   BusRegistry *registry;
   BusService *serv;
   DBusConnection *conn;
   DBusMessage *reply;
-  unsigned long pid;
+  unsigned long uid;
+  dbus_uint32_t uid32;
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
 
@@ -921,34 +1279,186 @@ bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection,
                               DBUS_TYPE_INVALID))
       goto failed;
 
-  _dbus_verbose ("asked for PID of connection %s\n", service);
+  _dbus_verbose ("asked for UID of connection %s\n", service);
 
   _dbus_string_init_const (&str, service);
   serv = bus_registry_lookup (registry, &str);
   if (serv == NULL)
     {
       dbus_set_error (error, 
-                     DBUS_ERROR_SERVICE_HAS_NO_OWNER,
-                     "Could not get owner of service '%s': no such service", service);
+                     DBUS_ERROR_NAME_HAS_NO_OWNER,
+                     "Could not get UID of name '%s': no such name", service);
       goto failed;
     }
 
-  conn = bus_service_get_primary_owner (serv);
+  conn = bus_service_get_primary_owners_connection (serv);
 
   reply = dbus_message_new_method_return (message);
   if (reply == NULL)
     goto oom;
 
-  if (!dbus_connection_get_unix_process_id (conn, &pid))
+  if (!dbus_connection_get_unix_user (conn, &uid))
     {
       dbus_set_error (error,
-                      DBUS_ERROR_UNIX_PROCESS_ID_UNKNOWN,
+                      DBUS_ERROR_FAILED,
+                      "Could not determine UID for '%s'", service);
+      goto failed;
+    }
+
+  uid32 = uid;
+  if (! dbus_message_append_args (reply,
+                                  DBUS_TYPE_UINT32, &uid32,
+                                  DBUS_TYPE_INVALID))
+    goto oom;
+
+  if (! bus_transaction_send_from_driver (transaction, connection, reply))
+    goto oom;
+
+  dbus_message_unref (reply);
+
+  return TRUE;
+
+ oom:
+  BUS_SET_OOM (error);
+
+ failed:
+  _DBUS_ASSERT_ERROR_IS_SET (error);
+  if (reply)
+    dbus_message_unref (reply);
+  return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection,
+                                                 BusTransaction *transaction,
+                                                 DBusMessage    *message,
+                                                 DBusError      *error)
+{
+  const char *service;
+  DBusString str;
+  BusRegistry *registry;
+  BusService *serv;
+  DBusConnection *conn;
+  DBusMessage *reply;
+  unsigned long pid;
+  dbus_uint32_t pid32;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  registry = bus_connection_get_registry (connection);
+
+  service = NULL;
+  reply = NULL;
+
+  if (! dbus_message_get_args (message, error,
+                              DBUS_TYPE_STRING, &service,
+                              DBUS_TYPE_INVALID))
+      goto failed;
+
+  _dbus_verbose ("asked for PID of connection %s\n", service);
+
+  _dbus_string_init_const (&str, service);
+  serv = bus_registry_lookup (registry, &str);
+  if (serv == NULL)
+    {
+      dbus_set_error (error, 
+                     DBUS_ERROR_NAME_HAS_NO_OWNER,
+                     "Could not get PID of name '%s': no such name", service);
+      goto failed;
+    }
+
+  conn = bus_service_get_primary_owners_connection (serv);
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    goto oom;
+
+  if (!dbus_connection_get_unix_process_id (conn, &pid))
+    {
+      dbus_set_error (error,
+                      DBUS_ERROR_UNIX_PROCESS_ID_UNKNOWN,
                       "Could not determine PID for '%s'", service);
       goto failed;
     }
 
+  pid32 = pid;
+  if (! dbus_message_append_args (reply,
+                                  DBUS_TYPE_UINT32, &pid32,
+                                  DBUS_TYPE_INVALID))
+    goto oom;
+
+  if (! bus_transaction_send_from_driver (transaction, connection, reply))
+    goto oom;
+
+  dbus_message_unref (reply);
+
+  return TRUE;
+
+ oom:
+  BUS_SET_OOM (error);
+
+ failed:
+  _DBUS_ASSERT_ERROR_IS_SET (error);
+  if (reply)
+    dbus_message_unref (reply);
+  return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_get_adt_audit_session_data (DBusConnection *connection,
+                                             BusTransaction *transaction,
+                                             DBusMessage    *message,
+                                             DBusError      *error)
+{
+  const char *service;
+  DBusString str;
+  BusRegistry *registry;
+  BusService *serv;
+  DBusConnection *conn;
+  DBusMessage *reply;
+  void *data = NULL;
+  dbus_uint32_t data_size;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  registry = bus_connection_get_registry (connection);
+
+  service = NULL;
+  reply = NULL;
+
+  if (! dbus_message_get_args (message, error,
+                              DBUS_TYPE_STRING, &service,
+                              DBUS_TYPE_INVALID))
+      goto failed;
+
+  _dbus_verbose ("asked for audit session data for connection %s\n", service);
+
+  _dbus_string_init_const (&str, service);
+  serv = bus_registry_lookup (registry, &str);
+  if (serv == NULL)
+    {
+      dbus_set_error (error, 
+                     DBUS_ERROR_NAME_HAS_NO_OWNER,
+                     "Could not get audit session data for name '%s': no such name", service);
+      goto failed;
+    }
+
+  conn = bus_service_get_primary_owners_connection (serv);
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    goto oom;
+
+  if (!dbus_connection_get_adt_audit_session_data (conn, &data, &data_size) || data == NULL)
+    {
+      dbus_set_error (error,
+                      DBUS_ERROR_ADT_AUDIT_DATA_UNKNOWN,
+                      "Could not determine audit session data for '%s'", service);
+      goto failed;
+    }
+
   if (! dbus_message_append_args (reply,
-                                  DBUS_TYPE_UINT32, (dbus_uint32_t) pid,
+                                  DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &data, data_size,
                                   DBUS_TYPE_INVALID))
     goto oom;
 
@@ -956,7 +1466,6 @@ bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection,
     goto oom;
 
   dbus_message_unref (reply);
-  dbus_free (service);
 
   return TRUE;
 
@@ -967,7 +1476,79 @@ bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection,
   _DBUS_ASSERT_ERROR_IS_SET (error);
   if (reply)
     dbus_message_unref (reply);
-  dbus_free (service);
+  return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_get_connection_selinux_security_context (DBusConnection *connection,
+                                                          BusTransaction *transaction,
+                                                          DBusMessage    *message,
+                                                          DBusError      *error)
+{
+  const char *service;
+  DBusString str;
+  BusRegistry *registry;
+  BusService *serv;
+  DBusConnection *conn;
+  DBusMessage *reply;
+  BusSELinuxID *context;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  registry = bus_connection_get_registry (connection);
+
+  service = NULL;
+  reply = NULL;
+
+  if (! dbus_message_get_args (message, error,
+                              DBUS_TYPE_STRING, &service,
+                              DBUS_TYPE_INVALID))
+      goto failed;
+
+  _dbus_verbose ("asked for security context of connection %s\n", service);
+
+  _dbus_string_init_const (&str, service);
+  serv = bus_registry_lookup (registry, &str);
+  if (serv == NULL)
+    {
+      dbus_set_error (error, 
+                     DBUS_ERROR_NAME_HAS_NO_OWNER,
+                     "Could not get security context of name '%s': no such name", service);
+      goto failed;
+    }
+
+  conn = bus_service_get_primary_owners_connection (serv);
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    goto oom;
+
+  context = bus_connection_get_selinux_id (conn);
+  if (!context)
+    {
+      dbus_set_error (error,
+                      DBUS_ERROR_SELINUX_SECURITY_CONTEXT_UNKNOWN,
+                      "Could not determine security context for '%s'", service);
+      goto failed;
+    }
+
+  if (! bus_selinux_append_context (reply, context, error))
+    goto failed;
+
+  if (! bus_transaction_send_from_driver (transaction, connection, reply))
+    goto oom;
+
+  dbus_message_unref (reply);
+
+  return TRUE;
+
+ oom:
+  BUS_SET_OOM (error);
+
+ failed:
+  _DBUS_ASSERT_ERROR_IS_SET (error);
+  if (reply)
+    dbus_message_unref (reply);
   return FALSE;
 }
 
@@ -978,57 +1559,373 @@ bus_driver_handle_reload_config (DBusConnection *connection,
                                 DBusError      *error)
 {
   BusContext *context;
-  dbus_bool_t retval;
+  DBusMessage *reply;
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
 
-  retval = FALSE;
-
+  reply = NULL;
+  
   context = bus_connection_get_context (connection);
   if (!bus_context_reload_config (context, error))
+    goto failed;
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    goto oom;
+
+  if (! bus_transaction_send_from_driver (transaction, connection, reply))
+    goto oom;
+
+  dbus_message_unref (reply);
+  return TRUE;
+
+ oom:
+  BUS_SET_OOM (error);
+
+ failed:
+  _DBUS_ASSERT_ERROR_IS_SET (error);
+  if (reply)
+    dbus_message_unref (reply);
+  return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_get_id (DBusConnection *connection,
+                          BusTransaction *transaction,
+                          DBusMessage    *message,
+                          DBusError      *error)
+{
+  BusContext *context;
+  DBusMessage *reply;
+  DBusString uuid;
+  const char *v_STRING;
+
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  if (!_dbus_string_init (&uuid))
     {
-      _DBUS_ASSERT_ERROR_IS_SET (error);
-      goto out;
+      BUS_SET_OOM (error);
+      return FALSE;
     }
 
-  retval = TRUE;
+  reply = NULL;
   
- out:
-  return retval;
+  context = bus_connection_get_context (connection);
+  if (!bus_context_get_id (context, &uuid))
+    goto oom;
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    goto oom;
+
+  v_STRING = _dbus_string_get_const_data (&uuid);
+  if (!dbus_message_append_args (reply,
+                                 DBUS_TYPE_STRING, &v_STRING,
+                                 DBUS_TYPE_INVALID))
+    goto oom;
+  
+  _dbus_assert (dbus_message_has_signature (reply, "s"));
+  
+  if (! bus_transaction_send_from_driver (transaction, connection, reply))
+    goto oom;
+
+  _dbus_string_free (&uuid);  
+  dbus_message_unref (reply);
+  return TRUE;
+
+ oom:
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+  
+  BUS_SET_OOM (error);
+
+  if (reply)
+    dbus_message_unref (reply);
+  _dbus_string_free (&uuid);  
+  return FALSE;
 }
 
 /* For speed it might be useful to sort this in order of
  * frequency of use (but doesn't matter with only a few items
  * anyhow)
  */
-struct
+static struct
 {
   const char *name;
+  const char *in_args;
+  const char *out_args;
   dbus_bool_t (* handler) (DBusConnection *connection,
                            BusTransaction *transaction,
                            DBusMessage    *message,
                            DBusError      *error);
 } message_handlers[] = {
-  { "AcquireService", bus_driver_handle_acquire_service },
-  { "ActivateService", bus_driver_handle_activate_service },
-  { "Hello", bus_driver_handle_hello },
-  { "ServiceExists", bus_driver_handle_service_exists },
-  { "ListServices", bus_driver_handle_list_services },
-  { "AddMatch", bus_driver_handle_add_match },
-  { "RemoveMatch", bus_driver_handle_remove_match },
-  { "GetServiceOwner", bus_driver_handle_get_service_owner },
-  { "GetConnectionUnixUser", bus_driver_handle_get_connection_unix_user },
-  { "GetConnectionUnixProcessID", bus_driver_handle_get_connection_unix_process_id },
-  { "ReloadConfig", bus_driver_handle_reload_config }
+  { "Hello",
+    "",
+    DBUS_TYPE_STRING_AS_STRING,
+    bus_driver_handle_hello },  
+  { "RequestName",
+    DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_UINT32_AS_STRING,
+    DBUS_TYPE_UINT32_AS_STRING,
+    bus_driver_handle_acquire_service },
+  { "ReleaseName",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_UINT32_AS_STRING,
+    bus_driver_handle_release_service },
+  { "StartServiceByName",
+    DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_UINT32_AS_STRING,
+    DBUS_TYPE_UINT32_AS_STRING,
+    bus_driver_handle_activate_service },
+  { "UpdateActivationEnvironment",
+    DBUS_TYPE_ARRAY_AS_STRING DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_STRING_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
+    "",
+    bus_driver_handle_update_activation_environment },
+  { "NameHasOwner",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_BOOLEAN_AS_STRING,
+    bus_driver_handle_service_exists },
+  { "ListNames",
+    "",
+    DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING,
+    bus_driver_handle_list_services },
+  { "ListActivatableNames",
+    "",
+    DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING,
+    bus_driver_handle_list_activatable_services },
+  { "AddMatch",
+    DBUS_TYPE_STRING_AS_STRING,
+    "",
+    bus_driver_handle_add_match },
+  { "RemoveMatch",
+    DBUS_TYPE_STRING_AS_STRING,
+    "",
+    bus_driver_handle_remove_match },
+  { "GetNameOwner",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_STRING_AS_STRING,
+    bus_driver_handle_get_service_owner },
+  { "ListQueuedOwners",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_STRING_AS_STRING,
+    bus_driver_handle_list_queued_owners },
+  { "GetConnectionUnixUser",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_UINT32_AS_STRING,
+    bus_driver_handle_get_connection_unix_user },
+  { "GetConnectionUnixProcessID",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_UINT32_AS_STRING,
+    bus_driver_handle_get_connection_unix_process_id },
+  { "GetAdtAuditSessionData",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_BYTE_AS_STRING,
+    bus_driver_handle_get_adt_audit_session_data },
+  { "GetConnectionSELinuxSecurityContext",
+    DBUS_TYPE_STRING_AS_STRING,
+    DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_BYTE_AS_STRING,
+    bus_driver_handle_get_connection_selinux_security_context },
+  { "ReloadConfig",
+    "",
+    "",
+    bus_driver_handle_reload_config },
+  { "GetId",
+    "",
+    DBUS_TYPE_STRING_AS_STRING,
+    bus_driver_handle_get_id }
 };
 
+static dbus_bool_t
+write_args_for_direction (DBusString *xml,
+                         const char *signature,
+                         dbus_bool_t in)
+{
+  DBusTypeReader typereader;
+  DBusString sigstr;
+  int current_type;
+  
+  _dbus_string_init_const (&sigstr, signature);
+  _dbus_type_reader_init_types_only (&typereader, &sigstr, 0);
+      
+  while ((current_type = _dbus_type_reader_get_current_type (&typereader)) != DBUS_TYPE_INVALID)
+    {
+      const DBusString *subsig;
+      int start, len;
+
+      _dbus_type_reader_get_signature (&typereader, &subsig, &start, &len);
+      if (!_dbus_string_append_printf (xml, "      <arg direction=\"%s\" type=\"",
+                                      in ? "in" : "out"))
+       goto oom;
+      if (!_dbus_string_append_len (xml,
+                                   _dbus_string_get_const_data (subsig) + start,
+                                   len))
+       goto oom;
+      if (!_dbus_string_append (xml, "\"/>\n"))
+       goto oom;
+
+      _dbus_type_reader_next (&typereader);
+    }
+  return TRUE;
+ oom:
+  return FALSE;
+}
+
+dbus_bool_t
+bus_driver_generate_introspect_string (DBusString *xml)
+{
+  int i;
+
+  if (!_dbus_string_append (xml, DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE))
+    return FALSE;
+  if (!_dbus_string_append (xml, "<node>\n"))
+    return FALSE;
+  if (!_dbus_string_append_printf (xml, "  <interface name=\"%s\">\n", DBUS_INTERFACE_INTROSPECTABLE))
+    return FALSE;
+  if (!_dbus_string_append (xml, "    <method name=\"Introspect\">\n"))
+    return FALSE;
+  if (!_dbus_string_append_printf (xml, "      <arg name=\"data\" direction=\"out\" type=\"%s\"/>\n", DBUS_TYPE_STRING_AS_STRING))
+    return FALSE;
+  if (!_dbus_string_append (xml, "    </method>\n"))
+    return FALSE;
+  if (!_dbus_string_append (xml, "  </interface>\n"))
+    return FALSE;
+
+  if (!_dbus_string_append_printf (xml, "  <interface name=\"%s\">\n",
+                                   DBUS_INTERFACE_DBUS))
+    return FALSE;
+
+  i = 0;
+  while (i < _DBUS_N_ELEMENTS (message_handlers))
+    {
+         
+      if (!_dbus_string_append_printf (xml, "    <method name=\"%s\">\n",
+                                       message_handlers[i].name))
+        return FALSE;
+
+      if (!write_args_for_direction (xml, message_handlers[i].in_args, TRUE))
+       return FALSE;
+
+      if (!write_args_for_direction (xml, message_handlers[i].out_args, FALSE))
+       return FALSE;
+
+      if (!_dbus_string_append (xml, "    </method>\n"))
+       return FALSE;
+      
+      ++i;
+    }
+
+  if (!_dbus_string_append_printf (xml, "    <signal name=\"NameOwnerChanged\">\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "      <arg type=\"s\"/>\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "      <arg type=\"s\"/>\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "      <arg type=\"s\"/>\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "    </signal>\n"))
+    return FALSE;
+
+
+
+  if (!_dbus_string_append_printf (xml, "    <signal name=\"NameLost\">\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "      <arg type=\"s\"/>\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "    </signal>\n"))
+    return FALSE;
+
+
+
+  if (!_dbus_string_append_printf (xml, "    <signal name=\"NameAcquired\">\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "      <arg type=\"s\"/>\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append_printf (xml, "    </signal>\n"))
+    return FALSE;
+
+  if (!_dbus_string_append (xml, "  </interface>\n"))
+    return FALSE;
+  
+  if (!_dbus_string_append (xml, "</node>\n"))
+    return FALSE;
+
+  return TRUE;
+}
+
+static dbus_bool_t
+bus_driver_handle_introspect (DBusConnection *connection,
+                              BusTransaction *transaction,
+                              DBusMessage    *message,
+                              DBusError      *error)
+{
+  DBusString xml;
+  DBusMessage *reply;
+  const char *v_STRING;
+
+  _dbus_verbose ("Introspect() on bus driver\n");
+  
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  reply = NULL;
+
+  if (! dbus_message_get_args (message, error,
+                              DBUS_TYPE_INVALID))
+    {
+      _DBUS_ASSERT_ERROR_IS_SET (error);
+      return FALSE;
+    }
+
+  if (!_dbus_string_init (&xml))
+    {
+      BUS_SET_OOM (error);
+      return FALSE;
+    }
+
+  if (!bus_driver_generate_introspect_string (&xml))
+    goto oom;
+
+  v_STRING = _dbus_string_get_const_data (&xml);
+
+  reply = dbus_message_new_method_return (message);
+  if (reply == NULL)
+    goto oom;
+
+  if (! dbus_message_append_args (reply,
+                                  DBUS_TYPE_STRING, &v_STRING,
+                                  DBUS_TYPE_INVALID))
+    goto oom;
+
+  if (! bus_transaction_send_from_driver (transaction, connection, reply))
+    goto oom;
+
+  dbus_message_unref (reply);
+  _dbus_string_free (&xml);
+
+  return TRUE;
+
+ oom:
+  BUS_SET_OOM (error);
+
+  if (reply)
+    dbus_message_unref (reply);
+
+  _dbus_string_free (&xml);
+  
+  return FALSE;
+}
+
 dbus_bool_t
 bus_driver_handle_message (DBusConnection *connection,
                            BusTransaction *transaction,
                           DBusMessage    *message,
                            DBusError      *error)
 {
-  const char *name, *sender;
+  const char *name, *sender, *interface;
   int i;
 
   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
@@ -1039,17 +1936,25 @@ bus_driver_handle_message (DBusConnection *connection,
       return TRUE; /* we just ignore this */
     }
 
-  _dbus_assert (dbus_message_get_interface (message) != NULL);
+  if (dbus_message_is_method_call (message,
+                                   DBUS_INTERFACE_INTROSPECTABLE,
+                                   "Introspect"))
+    return bus_driver_handle_introspect (connection, transaction, message, error);
+  
+  interface = dbus_message_get_interface (message);
+  if (interface == NULL)
+    interface = DBUS_INTERFACE_DBUS;
+  
   _dbus_assert (dbus_message_get_member (message) != NULL);
-
+  
   name = dbus_message_get_member (message);
   sender = dbus_message_get_sender (message);
   
-  if (strcmp (dbus_message_get_interface (message),
-              DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS) != 0)
+  if (strcmp (interface,
+              DBUS_INTERFACE_DBUS) != 0)
     {
       _dbus_verbose ("Driver got message to unknown interface \"%s\"\n",
-                     dbus_message_get_interface (message));
+                     interface);
       goto unknown;
     }
   
@@ -1058,19 +1963,29 @@ bus_driver_handle_message (DBusConnection *connection,
   
   /* security checks should have kept this from getting here */
   _dbus_assert (sender != NULL || strcmp (name, "Hello") == 0);
-
-  if (dbus_message_get_reply_serial (message) != 0)
-    {
-      _dbus_verbose ("Client sent a reply to the bus driver, ignoring it\n");
-      return TRUE;
-    }
   
   i = 0;
   while (i < _DBUS_N_ELEMENTS (message_handlers))
     {
       if (strcmp (message_handlers[i].name, name) == 0)
         {
-          _dbus_verbose ("Running driver handler for %s\n", name);
+          _dbus_verbose ("Found driver handler for %s\n", name);
+
+          if (!dbus_message_has_signature (message, message_handlers[i].in_args))
+            {
+              _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+              _dbus_verbose ("Call to %s has wrong args (%s, expected %s)\n",
+                             name, dbus_message_get_signature (message),
+                             message_handlers[i].in_args);
+              
+              dbus_set_error (error, DBUS_ERROR_INVALID_ARGS,
+                              "Call to %s has wrong args (%s, expected %s)\n",
+                              name, dbus_message_get_signature (message),
+                              message_handlers[i].in_args);
+              _DBUS_ASSERT_ERROR_IS_SET (error);
+              return FALSE;
+            }
+          
           if ((* message_handlers[i].handler) (connection, transaction, message, error))
             {
               _DBUS_ASSERT_ERROR_IS_CLEAR (error);
@@ -1094,7 +2009,7 @@ bus_driver_handle_message (DBusConnection *connection,
 
   dbus_set_error (error, DBUS_ERROR_UNKNOWN_METHOD,
                   "%s does not understand message %s",
-                  DBUS_SERVICE_ORG_FREEDESKTOP_DBUS, name);
+                  DBUS_SERVICE_DBUS, name);
   
   return FALSE;
 }
@@ -1102,7 +2017,7 @@ bus_driver_handle_message (DBusConnection *connection,
 void
 bus_driver_remove_connection (DBusConnection *connection)
 {
-  /* FIXME Does nothing for now, should unregister the connection
+  /* FIXME 1.0 Does nothing for now, should unregister the connection
    * with the bus driver.
    */
 }