/**
* wpa_supplicant_dbus_ctrl_iface_init - Initialize dbus control interface
* @global: Pointer to global data from wpa_supplicant_init()
* Returns: Pointer to dbus_ctrl_iface date or %NULL on failure
*
* Initialize the dbus control interface and start receiving commands from
* external programs over the bus.
*/
struct ctrl_iface_dbus_priv *
wpa_supplicant_dbus_ctrl_iface_init(struct wpa_global *global)
{
struct ctrl_iface_dbus_priv *iface;
DBusError error;
int ret = -1;
DBusObjectPathVTable wpas_vtable = {
NULL, &wpas_message_handler, NULL, NULL, NULL, NULL
};
iface = os_zalloc(sizeof(struct ctrl_iface_dbus_priv));
if (iface == NULL)
return NULL;
iface->global = global;
/* Get a reference to the system bus */
dbus_error_init(&error);
iface->con = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
dbus_error_free(&error);
if (!iface->con) {
perror("dbus_bus_get[ctrl_iface_dbus]");
wpa_printf(MSG_ERROR, "Could not acquire the system bus.");
goto fail;
}
/* Tell dbus about our mainloop integration functions */
if (integrate_with_eloop(iface->con, iface))
goto fail;
/* Register the message handler for the global dbus interface */
if (!dbus_connection_register_object_path(iface->con,
WPAS_DBUS_PATH, &wpas_vtable,
iface)) {
perror("dbus_connection_register_object_path[dbus]");
wpa_printf(MSG_ERROR, "Could not set up DBus message "
"handler.");
goto fail;
}
/* Register our service with the message bus */
dbus_error_init(&error);
switch (dbus_bus_request_name(iface->con, WPAS_DBUS_SERVICE,
0, &error)) {
case DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER:
ret = 0;
break;
case DBUS_REQUEST_NAME_REPLY_EXISTS:
case DBUS_REQUEST_NAME_REPLY_IN_QUEUE:
case DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER:
perror("dbus_bus_request_name[dbus]");
wpa_printf(MSG_ERROR, "Could not request DBus service name: "
"already registered.");
break;
default:
perror("dbus_bus_request_name[dbus]");
wpa_printf(MSG_ERROR, "Could not request DBus service name: "
"%s %s.", error.name, error.message);
break;
}
dbus_error_free(&error);
if (ret != 0)
goto fail;
wpa_printf(MSG_DEBUG, "Providing DBus service '" WPAS_DBUS_SERVICE
"'.");
/*
* Dispatch initial DBus messages that may have come in since the bus
* name was claimed above. Happens when clients are quick to notice the
* wpa_supplicant service.
*
* FIXME: is there a better solution to this problem?
*/
eloop_register_timeout(0, 50, dispatch_initial_dbus_messages,
iface->con, NULL);
return iface;
fail:
wpa_supplicant_dbus_ctrl_iface_deinit(iface);
return NULL;
}
/**
* wpa_supplicant_dbus_ctrl_iface_init - Initialize dbus control interface
* @global: Pointer to global data from wpa_supplicant_init()
* Returns: Pointer to dbus_ctrl_iface date or %NULL on failure
*
* Initialize the dbus control interface and start receiving commands from
* external programs over the bus.
*/
struct ctrl_iface_dbus_priv *
wpa_supplicant_dbus_ctrl_iface_init(struct wpa_global *global)
{
struct ctrl_iface_dbus_priv *iface;
DBusError error;
int ret = -1;
DBusObjectPathVTable vtable = {
NULL, &dbus_message_handler, NULL, NULL, NULL, NULL
};
iface = wpa_zalloc(sizeof(struct ctrl_iface_dbus_priv));
if (iface == NULL)
return NULL;
iface->global = global;
dbus_error_init(&error);
iface->con = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
dbus_error_free(&error);
if (!iface->con) {
perror("dbus_bus_get[ctrl_iface_dbus]");
wpa_printf(MSG_ERROR, "Could not acquire the system bus.");
goto fail;
}
if (!dbus_connection_set_watch_functions(iface->con, add_watch,
remove_watch, watch_toggled,
iface, NULL)) {
perror("dbus_connection_set_watch_functions[dbus]");
wpa_printf(MSG_ERROR, "Not enough memory to set up dbus.");
goto fail;
}
if (!dbus_connection_set_timeout_functions(iface->con, add_timeout,
remove_timeout,
timeout_toggled, iface,
NULL)) {
perror("dbus_connection_set_timeout_functions[dbus]");
wpa_printf(MSG_ERROR, "Not enough memory to set up dbus.");
goto fail;
}
if (connection_setup_wakeup_main(iface) < 0) {
perror("connection_setup_wakeup_main[dbus]");
wpa_printf(MSG_ERROR, "Could not setup main wakeup function.");
goto fail;
}
dbus_error_init(&error);
switch (dbus_bus_request_name(iface->con, WPA_SUPPLICANT_DBUS_SERVICE,
0, &error)) {
case DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER:
ret = 0;
break;
case DBUS_REQUEST_NAME_REPLY_EXISTS:
case DBUS_REQUEST_NAME_REPLY_IN_QUEUE:
case DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER:
perror("dbus_bus_request_name[dbus]");
wpa_printf(MSG_ERROR, "Could not request DBus service name: "
"already registered.");
break;
default:
perror("dbus_bus_request_name[dbus]");
wpa_printf(MSG_ERROR, "Could not request DBus service name: "
"%s %s.", error.name, error.message);
break;
}
dbus_error_free(&error);
if (!dbus_connection_register_object_path(iface->con,
WPA_SUPPLICANT_DBUS_PATH, &vtable, iface)) {
perror("dbus_connection_register_object_path[dbus]");
wpa_printf(MSG_ERROR, "Could not set up DBus message "
"handler.");
ret = -1;
}
if (ret != 0)
goto fail;
wpa_printf(MSG_DEBUG, "Providing DBus service '"
WPA_SUPPLICANT_DBUS_SERVICE "'.");
return iface;
fail:
wpa_supplicant_dbus_ctrl_iface_deinit(iface);
return NULL;
}
