dbus.c

bluetooth 开发应用bluez-utils-2.23

		syslog(LOG_ERR, "Couldn't allocate D-BUS message");
		goto failed;
	}

	req = malloc(sizeof(*req));
	req->dev = dev;
	bacpy(&req->bda, &ci->bdaddr);

	dbus_message_append_args(message, DBUS_TYPE_BOOLEAN, &out,
			DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
			&addr, sizeof(bdaddr_t), DBUS_TYPE_INVALID);

	if (dbus_connection_send_with_reply(connection, message,
						&pending, TIMEOUT) == FALSE) {
		syslog(LOG_ERR, "D-BUS send failed");
		goto failed;
	}

	dbus_pending_call_set_notify(pending, reply_handler_function,
							req, free_pin_req);

	dbus_connection_flush(connection);

	dbus_message_unref(message);

	return;

failed:
	dbus_message_unref(message);
	hci_send_cmd(dev, OGF_LINK_CTL, OCF_PIN_CODE_NEG_REPLY, 6, &ci->bdaddr);
}

void hcid_dbus_inquiry_start(bdaddr_t *local)
{
	DBusMessage *message = NULL;
	char path[MAX_PATH_LENGTH];
	char *local_addr;
	bdaddr_t tmp;
	int id;

	baswap(&tmp, local); local_addr = batostr(&tmp);

	id = hci_devid(local_addr);
	if (id < 0) {
		syslog(LOG_ERR, "No matching device id for %s", local_addr);
		goto failed;
	}

	snprintf(path, sizeof(path), "%s/hci%d/%s", DEVICE_PATH, id, BLUEZ_HCI);

	message = dbus_message_new_signal(path, DEV_HCI_INTERFACE,
						BLUEZ_HCI_INQ_START);
	if (message == NULL) {
		syslog(LOG_ERR, "Can't allocate D-BUS inquiry start message");
		goto failed;
	}

	if (dbus_connection_send(connection, message, NULL) == FALSE) {
		syslog(LOG_ERR, "Can't send D-BUS inquiry start message");
		goto failed;
	}

	dbus_connection_flush(connection);

failed:
	dbus_message_unref(message);
	bt_free(local_addr);
}

void hcid_dbus_inquiry_complete(bdaddr_t *local)
{
	DBusMessage *message = NULL;
	char path[MAX_PATH_LENGTH];
	char *local_addr;
	bdaddr_t tmp;
	int id;

	baswap(&tmp, local); local_addr = batostr(&tmp);

	id = hci_devid(local_addr);
	if (id < 0) {
		syslog(LOG_ERR, "No matching device id for %s", local_addr);
		goto failed;
	}

	snprintf(path, sizeof(path), "%s/hci%d/%s", DEVICE_PATH, id, BLUEZ_HCI);

	message = dbus_message_new_signal(path, DEV_HCI_INTERFACE,
						BLUEZ_HCI_INQ_COMPLETE);
	if (message == NULL) {
		syslog(LOG_ERR, "Can't allocate D-BUS inquiry complete message");
		goto failed;
	}

	if (dbus_connection_send(connection, message, NULL) == FALSE) {
		syslog(LOG_ERR, "Can't send D-BUS inquiry complete message");
		goto failed;
	}

	dbus_connection_flush(connection);

failed:
	dbus_message_unref(message);
	bt_free(local_addr);
}

void hcid_dbus_inquiry_result(bdaddr_t *local, bdaddr_t *peer, uint32_t class, int8_t rssi)
{
	DBusMessage *message = NULL;
	char path[MAX_PATH_LENGTH];
	char *local_addr, *peer_addr;
	dbus_uint32_t tmp_class = class;
	dbus_int32_t tmp_rssi = rssi;
	bdaddr_t tmp;
	int id;

	baswap(&tmp, local); local_addr = batostr(&tmp);
	baswap(&tmp, peer); peer_addr = batostr(&tmp);

	id = hci_devid(local_addr);
	if (id < 0) {
		syslog(LOG_ERR, "No matching device id for %s", local_addr);
		goto failed;
	}

	snprintf(path, sizeof(path), "%s/hci%d/%s", DEVICE_PATH, id, BLUEZ_HCI);

	message = dbus_message_new_signal(path, DEV_HCI_INTERFACE,
						BLUEZ_HCI_INQ_RESULT);
	if (message == NULL) {
		syslog(LOG_ERR, "Can't allocate D-BUS inquiry result message");
		goto failed;
	}

	dbus_message_append_args(message,
					DBUS_TYPE_STRING, &peer_addr,
					DBUS_TYPE_UINT32, &tmp_class,
					DBUS_TYPE_INT32, &tmp_rssi,
					DBUS_TYPE_INVALID);

	if (dbus_connection_send(connection, message, NULL) == FALSE) {
		syslog(LOG_ERR, "Can't send D-BUS inquiry result message");
		goto failed;
	}

	dbus_connection_flush(connection);

failed:
	dbus_message_unref(message);

	bt_free(local_addr);
	bt_free(peer_addr);
}

void hcid_dbus_remote_name(bdaddr_t *local, bdaddr_t *peer, char *name)
{
	DBusMessage *message = NULL;
	char path[MAX_PATH_LENGTH];
	char *local_addr, *peer_addr;
	bdaddr_t tmp;
	int id;

	baswap(&tmp, local); local_addr = batostr(&tmp);
	baswap(&tmp, peer); peer_addr = batostr(&tmp);

	id = hci_devid(local_addr);
	if (id < 0) {
		syslog(LOG_ERR, "No matching device id for %s", local_addr);
		goto failed;
	}

	snprintf(path, sizeof(path), "%s/hci%d/%s", DEVICE_PATH, id, BLUEZ_HCI);

	message = dbus_message_new_signal(path, DEV_HCI_INTERFACE,
						BLUEZ_HCI_REMOTE_NAME);
	if (message == NULL) {
		syslog(LOG_ERR, "Can't allocate D-BUS remote name message");
		goto failed;
	}

	dbus_message_append_args(message,
					DBUS_TYPE_STRING, &peer_addr,
					DBUS_TYPE_STRING, &name,
					DBUS_TYPE_INVALID);

	if (dbus_connection_send(connection, message, NULL) == FALSE) {
		syslog(LOG_ERR, "Can't send D-BUS remote name message");
		goto failed;
	}

	dbus_connection_flush(connection);

failed:
	dbus_message_unref(message);

	bt_free(local_addr);
	bt_free(peer_addr);
}

void hcid_dbus_remote_name_failed(bdaddr_t *local, bdaddr_t *peer, uint8_t status)
{
	DBusMessage *message = NULL;
	char path[MAX_PATH_LENGTH];
	char *local_addr, *peer_addr;
	bdaddr_t tmp;
	int id;

	baswap(&tmp, local); local_addr = batostr(&tmp);
	baswap(&tmp, peer); peer_addr = batostr(&tmp);

	id = hci_devid(local_addr);
	if (id < 0) {
		syslog(LOG_ERR, "No matching device id for %s", local_addr);
		goto failed;
	}

	snprintf(path, sizeof(path), "%s/hci%d/%s", DEVICE_PATH, id, BLUEZ_HCI);

	message = dbus_message_new_signal(path, DEV_HCI_INTERFACE,
						BLUEZ_HCI_REMOTE_NAME_FAILED);
	if (message == NULL) {
		syslog(LOG_ERR, "Can't allocate D-BUS remote name message");
		goto failed;
	}

	dbus_message_append_args(message,
					DBUS_TYPE_STRING, &peer_addr,
					DBUS_TYPE_BYTE, &status,
					DBUS_TYPE_INVALID);

	if (dbus_connection_send(connection, message, NULL) == FALSE) {
		syslog(LOG_ERR, "Can't send D-BUS remote name message");
		goto failed;
	}

	dbus_connection_flush(connection);

failed:
	dbus_message_unref(message);

	bt_free(local_addr);
	bt_free(peer_addr);
}

void hcid_dbus_conn_complete(bdaddr_t *local, bdaddr_t *peer)
{
}

void hcid_dbus_disconn_complete(bdaddr_t *local, bdaddr_t *peer, uint8_t reason)
{
}

void hcid_dbus_auth_complete(bdaddr_t *local, bdaddr_t *peer, const uint8_t status)
{
	DBusMessage *message = NULL;
	char *local_addr, *peer_addr;
	bdaddr_t tmp;
	char path[MAX_PATH_LENGTH];
	int id;

	baswap(&tmp, local); local_addr = batostr(&tmp);
	baswap(&tmp, peer); peer_addr = batostr(&tmp);

	id = hci_devid(local_addr);
	if (id < 0) {
		syslog(LOG_ERR, "No matching device id for %s", local_addr);
		goto failed;
	}

	snprintf(path, sizeof(path), "%s/hci%d/%s", DEVICE_PATH, id, BLUEZ_HCI);

	message = dbus_message_new_signal(path, DEV_HCI_INTERFACE,
						BLUEZ_HCI_AUTH_COMPLETE);
	if (message == NULL) {
		syslog(LOG_ERR, "Can't allocate D-BUS remote name message");
		goto failed;
	}

	dbus_message_append_args(message,
					DBUS_TYPE_STRING, &peer_addr,
					DBUS_TYPE_BYTE, &status,
					DBUS_TYPE_INVALID);

	if (dbus_connection_send(connection, message, NULL) == FALSE) {
		syslog(LOG_ERR, "Can't send D-BUS remote name message");
		goto failed;
	}

	dbus_connection_flush(connection);

failed:
	dbus_message_unref(message);

	bt_free(local_addr);
	bt_free(peer_addr);
}

gboolean watch_func(GIOChannel *chan, GIOCondition cond, gpointer data)
{
	DBusWatch *watch = (DBusWatch *) data;
	int flags = 0;

	if (cond & G_IO_IN)  flags |= DBUS_WATCH_READABLE;
	if (cond & G_IO_OUT) flags |= DBUS_WATCH_WRITABLE;
	if (cond & G_IO_HUP) flags |= DBUS_WATCH_HANGUP;
	if (cond & G_IO_ERR) flags |= DBUS_WATCH_ERROR;

	dbus_watch_handle(watch, flags);

	dbus_connection_ref(connection);

	/* Dispatch messages */
	while (dbus_connection_dispatch(connection) == DBUS_DISPATCH_DATA_REMAINS);

	dbus_connection_unref(connection);

	return TRUE;
}

dbus_bool_t add_watch(DBusWatch *watch, void *data)
{
	GIOCondition cond = G_IO_HUP | G_IO_ERR;
	GIOChannel *io;
	guint *id;
	int fd, flags;

	if (!dbus_watch_get_enabled(watch))
		return TRUE;

	id = malloc(sizeof(guint));
	if (id == NULL)
		return FALSE;

	fd = dbus_watch_get_fd(watch);
	io = g_io_channel_unix_new(fd);
	flags = dbus_watch_get_flags(watch);

	if (flags & DBUS_WATCH_READABLE) cond |= G_IO_IN;
	if (flags & DBUS_WATCH_WRITABLE) cond |= G_IO_OUT;

	*id = g_io_add_watch(io, cond, watch_func, watch);

	dbus_watch_set_data(watch, id, NULL);

	return TRUE;
}

static void remove_watch(DBusWatch *watch, void *data)
{
	guint *id = dbus_watch_get_data(watch);

	dbus_watch_set_data(watch, NULL, NULL);

	if (id) {
		g_io_remove_watch(*id);
		free(id);
	}
}

static void watch_toggled(DBusWatch *watch, void *data)
{
	/* Because we just exit on OOM, enable/disable is
	 * no different from add/remove */
	if (dbus_watch_get_enabled(watch))
		add_watch(watch, data);
	else
		remove_watch(watch, data);
}

static gboolean unregister_device_path(const char *path)
{
	char **children = NULL;

	if (!dbus_connection_list_registered(connection, path, &children))
		goto done;

	for (; *children; children++) {
		char child_path[MAX_PATH_LENGTH];

		snprintf(child_path, sizeof(child_path), "%s/%s", path, *children);

		unregister_dbus_path(child_path);
	}

	if (*children)
		dbus_free_string_array(children);

done:
	return unregister_dbus_path(path);
}

gboolean hcid_dbus_init(void)
{
	DBusError error;

	dbus_error_init(&error);

	connection = dbus_bus_get(DBUS_BUS_SYSTEM, &error);

	if (dbus_error_is_set(&error)) {
		syslog(LOG_ERR, "Can't open system message bus connection: %s",
								error.message);
		dbus_error_free(&error);
		return FALSE;
	}

	dbus_connection_set_exit_on_disconnect(connection, FALSE);

	dbus_bus_request_name(connection, BASE_INTERFACE,
				DBUS_NAME_FLAG_PROHIBIT_REPLACEMENT, &error);

	if (dbus_error_is_set(&error)) {
		syslog(LOG_ERR, "Can't get system message bus name: %s",
								error.message);
		dbus_error_free(&error);
		return FALSE;
	}

	if (!register_dbus_path(DEVICE_PATH, DEVICE_ROOT_ID, INVALID_DEV_ID,
				&obj_dev_vtable, TRUE))
		return FALSE;

	if (!register_dbus_path(MANAGER_PATH, MANAGER_ROOT_ID, INVALID_DEV_ID,
				&obj_mgr_vtable, FALSE))
		return FALSE;

	if (!dbus_connection_add_filter(connection, hci_signal_filter, NULL, NULL)) {
		syslog(LOG_ERR, "Can't add new HCI filter");
		return FALSE;
	}

	dbus_connection_set_watch_functions(connection,
			add_watch, remove_watch, watch_toggled, NULL, NULL);

	return TRUE;
}

void hcid_dbus_exit(void)
{
	char **children = NULL;

	if (!connection)
		return;

	/* Unregister all paths in Device path hierarchy */
	if (dbus_connection_list_registered(connection, DEVICE_PATH, &children)) {

		for (; *children; children++) {
			char dev_path[MAX_PATH_LENGTH];

			snprintf(dev_path, sizeof(dev_path), "%s/%s", DEVICE_PATH, *children);

			unregister_device_path(dev_path);
		}

		if (*children)
			dbus_free_string_array(children);
	}

	unregister_dbus_path(DEVICE_PATH);
	unregister_dbus_path(MANAGER_PATH);

	dbus_connection_close(connection);
}

gboolean hcid_dbus_register_device(uint16_t id) 
{