/* driver.c Bus client (driver)
*
* Copyright (C) 2003 CodeFactory AB
- * Copyright (C) 2003 Red Hat, Inc.
+ * Copyright (C) 2003, 2004, 2005 Red Hat, Inc.
*
- * Licensed under the Academic Free License version 1.2
+ * Licensed under the Academic Free License version 2.1
*
* 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
#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-marshal-recursive.h>
#include <string.h>
static dbus_bool_t bus_driver_send_welcome_message (DBusConnection *connection,
DBusError *error);
dbus_bool_t
-bus_driver_send_service_deleted (const char *service_name,
- BusTransaction *transaction,
- DBusError *error)
+bus_driver_send_service_owner_changed (const char *service_name,
+ const char *old_owner,
+ const char *new_owner,
+ BusTransaction *transaction,
+ DBusError *error)
{
DBusMessage *message;
dbus_bool_t retval;
+ const char *null_service;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
- _dbus_verbose ("sending service deleted: %s\n", service_name);
-
- message = dbus_message_new (DBUS_SERVICE_BROADCAST,
- DBUS_MESSAGE_SERVICE_DELETED);
- if (message == NULL)
- {
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS) ||
- !dbus_message_append_args (message,
- DBUS_TYPE_STRING, service_name,
- 0))
- {
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- return FALSE;
- }
-
- retval = bus_dispatch_broadcast_message (transaction, NULL, message, error);
- dbus_message_unref (message);
-
- return retval;
-}
-dbus_bool_t
-bus_driver_send_service_created (const char *service_name,
- BusTransaction *transaction,
- DBusError *error)
-{
- DBusMessage *message;
- dbus_bool_t retval;
+ 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);
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+ message = dbus_message_new_signal (DBUS_PATH_DBUS,
+ DBUS_INTERFACE_DBUS,
+ "NameOwnerChanged");
- message = dbus_message_new (DBUS_SERVICE_BROADCAST,
- DBUS_MESSAGE_SERVICE_CREATED);
if (message == NULL)
{
BUS_SET_OOM (error);
}
if (!dbus_message_set_sender (message, DBUS_SERVICE_DBUS))
- {
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- return FALSE;
- }
-
+ goto oom;
+
if (!dbus_message_append_args (message,
- DBUS_TYPE_STRING, service_name,
- 0))
- {
- dbus_message_unref (message);
- BUS_SET_OOM (error);
- return FALSE;
- }
+ 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;
+
+ _dbus_assert (dbus_message_has_signature (message, "sss"));
- retval = bus_dispatch_broadcast_message (transaction, NULL, message, error);
+ retval = bus_dispatch_matches (transaction, NULL, NULL, message, error);
dbus_message_unref (message);
return retval;
+
+ oom:
+ dbus_message_unref (message);
+ BUS_SET_OOM (error);
+ return FALSE;
}
dbus_bool_t
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
- message = dbus_message_new (bus_connection_get_name (connection),
- DBUS_MESSAGE_SERVICE_LOST);
+ message = dbus_message_new_signal (DBUS_PATH_DBUS,
+ DBUS_INTERFACE_DBUS,
+ "NameLost");
+
if (message == NULL)
{
BUS_SET_OOM (error);
return FALSE;
}
- if (!dbus_message_append_args (message,
- DBUS_TYPE_STRING, service_name,
- 0))
+ if (!dbus_message_set_destination (message, bus_connection_get_name (connection)) ||
+ !dbus_message_append_args (message,
+ DBUS_TYPE_STRING, &service_name,
+ DBUS_TYPE_INVALID))
{
dbus_message_unref (message);
BUS_SET_OOM (error);
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
- message = dbus_message_new (bus_connection_get_name (connection),
- DBUS_MESSAGE_SERVICE_ACQUIRED);
+ message = dbus_message_new_signal (DBUS_PATH_DBUS,
+ DBUS_INTERFACE_DBUS,
+ "NameAcquired");
+
if (message == NULL)
{
BUS_SET_OOM (error);
return FALSE;
}
- if (!dbus_message_append_args (message,
- DBUS_TYPE_STRING, service_name,
- 0))
+ if (!dbus_message_set_destination (message, bus_connection_get_name (connection)) ||
+ !dbus_message_append_args (message,
+ DBUS_TYPE_STRING, &service_name,
+ DBUS_TYPE_INVALID))
{
dbus_message_unref (message);
BUS_SET_OOM (error);
* for INT_MAX * INT_MAX combinations, should be pretty safe against
* wraparound.
*/
+ /* FIXME these should be in BusRegistry rather than static vars */
static int next_major_number = 0;
static int next_minor_number = 0;
int len;
-
+
len = _dbus_string_get_length (str);
while (TRUE)
if (!_dbus_string_append_int (str, next_major_number))
return FALSE;
- if (!_dbus_string_append (str, "-"))
+ if (!_dbus_string_append (str, "."))
return FALSE;
if (!_dbus_string_append_int (str, next_minor_number))
BusService *service;
dbus_bool_t retval;
BusRegistry *registry;
+ BusConnections *connections;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ if (bus_connection_is_active (connection))
+ {
+ /* We already handled an Hello message for this connection. */
+ dbus_set_error (error, DBUS_ERROR_FAILED,
+ "Already handled an Hello message");
+ return FALSE;
+ }
+
+ /* Note that when these limits are exceeded we don't disconnect the
+ * connection; we just sort of leave it hanging there until it times
+ * out or disconnects itself or is dropped due to the max number of
+ * incomplete connections. It's even OK if the connection wants to
+ * retry the hello message, we support that.
+ */
+ connections = bus_connection_get_connections (connection);
+ if (!bus_connections_check_limits (connections, connection,
+ error))
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ return FALSE;
+ }
if (!_dbus_string_init (&unique_name))
{
goto out_0;
}
- if (!bus_connection_set_name (connection, &unique_name))
+ if (!bus_connection_complete (connection, &unique_name, error))
{
- BUS_SET_OOM (error);
+ _DBUS_ASSERT_ERROR_IS_SET (error);
goto out_0;
}
/* 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;
out_0:
name = bus_connection_get_name (connection);
_dbus_assert (name != NULL);
- welcome = dbus_message_new_reply (hello_message);
+ welcome = dbus_message_new_method_return (hello_message);
if (welcome == NULL)
{
BUS_SET_OOM (error);
}
if (!dbus_message_append_args (welcome,
- DBUS_TYPE_STRING, name,
- NULL))
+ DBUS_TYPE_STRING, &name,
+ DBUS_TYPE_INVALID))
{
dbus_message_unref (welcome);
BUS_SET_OOM (error);
return FALSE;
}
+ _dbus_assert (dbus_message_has_signature (welcome, DBUS_TYPE_STRING_AS_STRING));
+
if (!bus_transaction_send_from_driver (transaction, connection, welcome))
{
dbus_message_unref (welcome);
int len;
char **services;
BusRegistry *registry;
+ int i;
+ DBusMessageIter iter;
+ DBusMessageIter sub;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
registry = bus_connection_get_registry (connection);
- reply = dbus_message_new_reply (message);
+ reply = dbus_message_new_method_return (message);
if (reply == NULL)
{
BUS_SET_OOM (error);
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,
- 0))
+ 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);
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;
+ }
+
+ if (!dbus_message_iter_close_container (&iter, &sub))
+ {
+ dbus_free_string_array (services);
+ dbus_message_unref (reply);
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
dbus_free_string_array (services);
if (!bus_transaction_send_from_driver (transaction, connection, reply))
{
DBusMessage *reply;
DBusString service_name;
- char *name;
- int service_reply;
- int flags;
+ const char *name;
+ dbus_uint32_t service_reply;
+ dbus_uint32_t flags;
dbus_bool_t retval;
BusRegistry *registry;
if (!dbus_message_get_args (message, error,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_UINT32, &flags,
- 0))
+ 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;
error))
goto out;
- reply = dbus_message_new_reply (message);
+ 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))
+ if (!dbus_message_append_args (reply, DBUS_TYPE_UINT32, &service_reply, DBUS_TYPE_INVALID))
{
BUS_SET_OOM (error);
goto out;
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,
DBusMessage *reply;
DBusString service_name;
BusService *service;
- char *name;
+ dbus_bool_t service_exists;
+ const char *name;
dbus_bool_t retval;
BusRegistry *registry;
if (!dbus_message_get_args (message, error,
DBUS_TYPE_STRING, &name,
- 0))
+ DBUS_TYPE_INVALID))
return FALSE;
retval = FALSE;
+
+ if (strcmp (name, DBUS_SERVICE_DBUS) == 0)
+ {
+ service_exists = TRUE;
+ }
+ else
+ {
+ _dbus_string_init_const (&service_name, name);
+ service = bus_registry_lookup (registry, &service_name);
+ service_exists = service != NULL;
+ }
- _dbus_string_init_const (&service_name, name);
- service = bus_registry_lookup (registry, &service_name);
-
- reply = dbus_message_new_reply (message);
+ reply = dbus_message_new_method_return (message);
if (reply == NULL)
{
BUS_SET_OOM (error);
}
if (!dbus_message_append_args (reply,
- DBUS_TYPE_UINT32, service != NULL,
+ DBUS_TYPE_BOOLEAN, &service_exists,
0))
{
BUS_SET_OOM (error);
out:
if (reply)
dbus_message_unref (reply);
- dbus_free (name);
return retval;
}
DBusError *error)
{
dbus_uint32_t flags;
- char *name;
+ const char *name;
dbus_bool_t retval;
BusActivation *activation;
if (!dbus_message_get_args (message, error,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_UINT32, &flags,
- 0))
+ 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;
}
retval = FALSE;
- if (!bus_activation_activate_service (activation, connection, transaction,
+ if (!bus_activation_activate_service (activation, connection, transaction, FALSE,
message, name, error))
{
_DBUS_ASSERT_ERROR_IS_SET (error);
retval = TRUE;
out:
- dbus_free (name);
return retval;
}
-/* 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 dbus_bool_t
+send_ack_reply (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
{
- const char *name;
- dbus_bool_t (* handler) (DBusConnection *connection,
- BusTransaction *transaction,
- DBusMessage *message,
- DBusError *error);
-} message_handlers[] = {
- { DBUS_MESSAGE_ACQUIRE_SERVICE, bus_driver_handle_acquire_service },
- { DBUS_MESSAGE_ACTIVATE_SERVICE, bus_driver_handle_activate_service },
- { DBUS_MESSAGE_HELLO, bus_driver_handle_hello },
- { DBUS_MESSAGE_SERVICE_EXISTS, bus_driver_handle_service_exists },
- { DBUS_MESSAGE_LIST_SERVICES, bus_driver_handle_list_services }
-};
+ DBusMessage *reply;
-dbus_bool_t
-bus_driver_handle_message (DBusConnection *connection,
- BusTransaction *transaction,
- DBusMessage *message,
- DBusError *error)
-{
- const char *name, *sender;
- int i;
+ reply = dbus_message_new_method_return (message);
+ if (reply == NULL)
+ {
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
- _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+ if (!bus_transaction_send_from_driver (transaction, connection, reply))
+ {
+ BUS_SET_OOM (error);
+ dbus_message_unref (reply);
+ return FALSE;
+ }
+
+ dbus_message_unref (reply);
+
+ return TRUE;
+}
+
+static dbus_bool_t
+bus_driver_handle_add_match (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ BusMatchRule *rule;
+ const char *text;
+ DBusString str;
+ BusMatchmaker *matchmaker;
- _dbus_verbose ("Driver got a message: %s\n",
- dbus_message_get_name (message));
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ text = NULL;
+ rule = NULL;
+
+ if (bus_connection_get_n_match_rules (connection) >=
+ bus_context_get_max_match_rules_per_connection (bus_transaction_get_context (transaction)))
+ {
+ dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
+ "Connection \"%s\" is not allowed to add more match rules "
+ "(increase limits in configuration file if required)",
+ bus_connection_is_active (connection) ?
+ bus_connection_get_name (connection) :
+ "(inactive)");
+ goto failed;
+ }
- name = dbus_message_get_name (message);
- sender = dbus_message_get_sender (message);
+ if (!dbus_message_get_args (message, error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID))
+ {
+ _dbus_verbose ("No memory to get arguments to AddMatch\n");
+ goto failed;
+ }
- if (sender == NULL && (strcmp (name, DBUS_MESSAGE_HELLO) != 0))
+ _dbus_string_init_const (&str, text);
+
+ rule = bus_match_rule_parse (connection, &str, error);
+ if (rule == NULL)
+ goto failed;
+
+ matchmaker = bus_connection_get_matchmaker (connection);
+
+ if (!bus_matchmaker_add_rule (matchmaker, rule))
{
- dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
- "Client tried to send a message other than %s without being registered",
- DBUS_MESSAGE_HELLO);
+ BUS_SET_OOM (error);
+ goto failed;
+ }
- dbus_connection_disconnect (connection);
- return FALSE;
+ if (!send_ack_reply (connection, transaction,
+ message, error))
+ {
+ bus_matchmaker_remove_rule (matchmaker, rule);
+ goto failed;
}
+
+ bus_match_rule_unref (rule);
+
+ return TRUE;
+
+ failed:
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ if (rule)
+ bus_match_rule_unref (rule);
+ return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_remove_match (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ BusMatchRule *rule;
+ const char *text;
+ DBusString str;
+ BusMatchmaker *matchmaker;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
- if (dbus_message_get_reply_serial (message) != -1)
+ text = NULL;
+ rule = NULL;
+
+ if (!dbus_message_get_args (message, error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID))
{
- _dbus_verbose ("Client sent a reply to the bus driver, ignoring it\n");
- return TRUE;
+ _dbus_verbose ("No memory to get arguments to RemoveMatch\n");
+ goto failed;
}
+
+ _dbus_string_init_const (&str, text);
+
+ rule = bus_match_rule_parse (connection, &str, error);
+ if (rule == NULL)
+ goto failed;
+
+ /* Send the ack before we remove the rule, since the ack is undone
+ * on transaction cancel, but rule removal isn't.
+ */
+ if (!send_ack_reply (connection, transaction,
+ message, error))
+ goto failed;
- i = 0;
- while (i < _DBUS_N_ELEMENTS (message_handlers))
+ matchmaker = bus_connection_get_matchmaker (connection);
+
+ if (!bus_matchmaker_remove_rule_by_value (matchmaker, rule, error))
+ goto failed;
+
+ bus_match_rule_unref (rule);
+
+ return TRUE;
+
+ failed:
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ if (rule)
+ bus_match_rule_unref (rule);
+ return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_get_service_owner (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ const char *text;
+ const char *base_name;
+ DBusString str;
+ BusRegistry *registry;
+ BusService *service;
+ DBusMessage *reply;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ registry = bus_connection_get_registry (connection);
+
+ text = NULL;
+ reply = NULL;
+
+ if (! dbus_message_get_args (message, error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID))
+ goto failed;
+
+ _dbus_string_init_const (&str, text);
+ service = bus_registry_lookup (registry, &str);
+ if (service == NULL &&
+ _dbus_string_equal_c_str (&str, DBUS_SERVICE_DBUS))
{
- if (strcmp (message_handlers[i].name, name) == 0)
- {
- _dbus_verbose ("Running driver handler for %s\n", name);
+ /* ORG_FREEDESKTOP_DBUS owns itself */
+ base_name = DBUS_SERVICE_DBUS;
+ }
+ else if (service == NULL)
+ {
+ dbus_set_error (error,
+ DBUS_ERROR_NAME_HAS_NO_OWNER,
+ "Could not get owner of name '%s': no such name", text);
+ goto failed;
+ }
+ else
+ {
+ 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 != 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_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_list_queued_owners (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ const char *text;
+ DBusList *base_names;
+ DBusList *link;
+ DBusString str;
+ BusRegistry *registry;
+ BusService *service;
+ DBusMessage *reply;
+ DBusMessageIter iter, array_iter;
+ char *dbus_service_name = DBUS_SERVICE_DBUS;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ registry = bus_connection_get_registry (connection);
+
+ base_names = NULL;
+ text = NULL;
+ reply = NULL;
+
+ if (! dbus_message_get_args (message, error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID))
+ goto failed;
+
+ _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_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;
+ }
+
+ _dbus_assert (base_names != NULL);
+
+ reply = dbus_message_new_method_return (message);
+ if (reply == NULL)
+ goto oom;
+
+ 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)
+ {
+ 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_iter_close_container (&iter, &array_iter))
+ 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);
+
+ if (base_names)
+ _dbus_list_clear (&base_names);
+
+ return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_get_connection_unix_user (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ const char *service;
+ DBusString str;
+ BusRegistry *registry;
+ BusService *serv;
+ DBusConnection *conn;
+ DBusMessage *reply;
+ unsigned long uid;
+ dbus_uint32_t uid32;
+
+ _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 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_NAME_HAS_NO_OWNER,
+ "Could not get UID 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_user (conn, &uid))
+ {
+ dbus_set_error (error,
+ 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_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;
+}
+
+static dbus_bool_t
+bus_driver_handle_reload_config (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ BusContext *context;
+ DBusMessage *reply;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ 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;
+}
+
+/* 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
+{
+ 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[] = {
+ { "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 },
+ { "Hello",
+ "",
+ DBUS_TYPE_STRING_AS_STRING,
+ bus_driver_handle_hello },
+ { "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 },
+ { "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 },
+ { "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 }
+};
+
+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;
+}
+
+static dbus_bool_t
+bus_driver_handle_introspect (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ DBusString xml;
+ DBusMessage *reply;
+ const char *v_STRING;
+ int i;
+
+ _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 (!_dbus_string_append (&xml, DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE))
+ goto oom;
+ if (!_dbus_string_append (&xml, "<node>\n"))
+ goto oom;
+ if (!_dbus_string_append_printf (&xml, " <interface name=\"%s\">\n", DBUS_INTERFACE_INTROSPECTABLE))
+ goto oom;
+ if (!_dbus_string_append (&xml, " <method name=\"Introspect\">\n"))
+ goto oom;
+ if (!_dbus_string_append_printf (&xml, " <arg name=\"data\" direction=\"out\" type=\"%s\"/>\n", DBUS_TYPE_STRING_AS_STRING))
+ goto oom;
+ if (!_dbus_string_append (&xml, " </method>\n"))
+ goto oom;
+ if (!_dbus_string_append (&xml, " </interface>\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " <interface name=\"%s\">\n",
+ DBUS_INTERFACE_DBUS))
+ goto oom;
+
+ i = 0;
+ while (i < _DBUS_N_ELEMENTS (message_handlers))
+ {
+
+ if (!_dbus_string_append_printf (&xml, " <method name=\"%s\">\n",
+ message_handlers[i].name))
+ goto oom;
+
+ if (!write_args_for_direction (&xml, message_handlers[i].in_args, TRUE))
+ goto oom;
+
+ if (!write_args_for_direction (&xml, message_handlers[i].out_args, FALSE))
+ goto oom;
+
+ if (!_dbus_string_append (&xml, " </method>\n"))
+ goto oom;
+
+ ++i;
+ }
+
+ if (!_dbus_string_append_printf (&xml, " <signal name=\"NameOwnerChanged\">\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " <arg type=\"s\"/>\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " <arg type=\"s\"/>\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " <arg type=\"s\"/>\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " </signal>\n"))
+ goto oom;
+
+
+
+ if (!_dbus_string_append_printf (&xml, " <signal name=\"NameLost\">\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " <arg type=\"s\"/>\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " </signal>\n"))
+ goto oom;
+
+
+
+ if (!_dbus_string_append_printf (&xml, " <signal name=\"NameAcquired\">\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " <arg type=\"s\"/>\n"))
+ goto oom;
+
+ if (!_dbus_string_append_printf (&xml, " </signal>\n"))
+ goto oom;
+
+
+
+ if (!_dbus_string_append (&xml, " </interface>\n"))
+ goto oom;
+
+ if (!_dbus_string_append (&xml, "</node>\n"))
+ goto oom;
+
+ reply = dbus_message_new_method_return (message);
+ if (reply == NULL)
+ goto oom;
+
+ v_STRING = _dbus_string_get_const_data (&xml);
+ 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, *interface;
+ int i;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_METHOD_CALL)
+ {
+ _dbus_verbose ("Driver got a non-method-call message, ignoring\n");
+ return TRUE; /* we just ignore this */
+ }
+
+ 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 (interface,
+ DBUS_INTERFACE_DBUS) != 0)
+ {
+ _dbus_verbose ("Driver got message to unknown interface \"%s\"\n",
+ interface);
+ goto unknown;
+ }
+
+ _dbus_verbose ("Driver got a method call: %s\n",
+ dbus_message_get_member (message));
+
+ /* security checks should have kept this from getting here */
+ _dbus_assert (sender != NULL || strcmp (name, "Hello") == 0);
+
+ i = 0;
+ while (i < _DBUS_N_ELEMENTS (message_handlers))
+ {
+ if (strcmp (message_handlers[i].name, name) == 0)
+ {
+ _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);
++i;
}
- _dbus_verbose ("No driver handler for %s\n", name);
+ unknown:
+ _dbus_verbose ("No driver handler for message \"%s\"\n",
+ name);
- dbus_set_error (error, DBUS_ERROR_UNKNOWN_MESSAGE,
+ dbus_set_error (error, DBUS_ERROR_UNKNOWN_METHOD,
"%s does not understand message %s",
DBUS_SERVICE_DBUS, name);
projects / platform / upstream / dbus.git / blobdiff