+ sprintf(priority, "%i", udev_log_priority);
+ setenv("UDEV_LOG", priority, 1);
+ }
+
+ udev_init_device(&udev, devpath, subsystem, action);
+ udev_rules_init();
+
+ if (udev.type == DEV_BLOCK || udev.type == DEV_CLASS || udev.type == DEV_NET) {
+ /* handle device node */
+ if (strcmp(action, "add") == 0) {
+ struct sysfs_class_device *class_dev;
+
+ /* wait for sysfs of /sys/class /sys/block */
+ dbg("node add");
+ snprintf(path, sizeof(path), "%s%s", sysfs_path, udev.devpath);
+ path[sizeof(path)-1] = '\0';
+ class_dev = wait_class_device_open(path);
+ if (class_dev == NULL) {
+ dbg("open class device failed");
+ goto run;
+ }
+ dbg("opened class_dev->name='%s'", class_dev->name);
+ wait_for_class_device(class_dev, &error);
+
+ /* get major/minor */
+ if (udev.type == DEV_BLOCK || udev.type == DEV_CLASS)
+ udev.devt = get_devt(class_dev);
+
+ if (udev.type == DEV_NET || udev.devt) {
+ /* name device */
+ udev_rules_get_name(&udev, class_dev);
+ if (udev.ignore_device) {
+ info("device event will be ignored");
+ goto cleanup;
+ }
+ if (udev.name[0] == '\0') {
+ info("device node creation supressed");
+ goto cleanup;
+ }
+
+ /* create node, store in db */
+ retval = udev_add_device(&udev, class_dev);
+ } else {
+ dbg("no dev-file found");
+ udev_rules_get_run(&udev, NULL);
+ if (udev.ignore_device) {
+ info("device event will be ignored");
+ goto cleanup;
+ }
+ }
+ sysfs_close_class_device(class_dev);
+ } else if (strcmp(action, "remove") == 0) {
+ dbg("node remove");
+ udev_rules_get_run(&udev, NULL);
+ if (udev.ignore_device) {
+ dbg("device event will be ignored");
+ goto cleanup;
+ }
+
+ /* get name from db, remove db-entry, delete node */
+ retval = udev_remove_device(&udev);
+ }
+
+ /* export name of device node or netif */
+ if (udev.devname[0] != '\0')
+ setenv("DEVNAME", udev.devname, 1);
+ } else if (udev.type == DEV_DEVICE) {
+ if (strcmp(action, "add") == 0) {
+ struct sysfs_device *devices_dev;
+
+ /* wait for sysfs of /sys/devices/ */
+ dbg("devices add");
+ snprintf(path, sizeof(path), "%s%s", sysfs_path, devpath);
+ path[sizeof(path)-1] = '\0';
+ devices_dev = wait_devices_device_open(path);
+ if (!devices_dev) {
+ dbg("devices device unavailable (probably remove has beaten us)");
+ goto run;
+ }
+ dbg("devices device opened '%s'", path);
+ wait_for_devices_device(devices_dev, &error);
+ udev_rules_get_run(&udev, devices_dev);
+ sysfs_close_device(devices_dev);
+ if (udev.ignore_device) {
+ info("device event will be ignored");
+ goto cleanup;
+ }
+ } else if (strcmp(action, "remove") == 0) {
+ dbg("devices remove");
+ udev_rules_get_run(&udev, NULL);
+ if (udev.ignore_device) {
+ info("device event will be ignored");
+ goto cleanup;
+ }
+ }
+ }