+ /* export logging flag, as called scripts may want to do the same as udev */
+ if (udev_log)
+ setenv("UDEV_LOG", "1", 1);
+
+ udev_init_device(&udev, devpath, subsystem);
+
+ if (udev.type == BLOCK || udev.type == CLASS || udev.type == NET) {
+ if (strcmp(action, "add") == 0) {
+ /* wait for sysfs and possibly add node */
+ dbg("udev add");
+
+ /* skip subsystems without "dev", but handle net devices */
+ if (udev.type != NET && subsystem_expect_no_dev(udev.subsystem)) {
+ dbg("don't care about '%s' devices", udev.subsystem);
+ goto hotplug;
+ }
+
+ snprintf(path, SYSFS_PATH_MAX, "%s%s", sysfs_path, udev.devpath);
+ class_dev = wait_class_device_open(path);
+ if (class_dev == NULL) {
+ dbg ("open class device failed");
+ goto hotplug;
+ }
+ dbg("opened class_dev->name='%s'", class_dev->name);
+
+ wait_for_class_device(class_dev, &error);
+
+ /* init rules */
+ namedev_init();
+
+ /* name, create node, store in db */
+ retval = udev_add_device(&udev, class_dev);
+
+ sysfs_close_class_device(class_dev);
+ } else if (strcmp(action, "remove") == 0) {
+ /* possibly remove a node */
+ dbg("udev remove");
+
+ /* skip subsystems without "dev" */
+ if (subsystem_expect_no_dev(udev.subsystem)) {
+ dbg("don't care about '%s' devices", udev.subsystem);
+ goto hotplug;
+ }
+
+ /* get node from db, remove db-entry, delete created node */
+ retval = udev_remove_device(&udev);
+ }
+
+ /* run dev.d/ scripts if we created/deleted a node or changed a netif name */
+ if (udev.devname[0] != '\0') {
+ setenv("DEVNAME", udev.devname, 1);
+ if (udev_dev_d)
+ udev_multiplex_directory(&udev, DEVD_DIR, DEVD_SUFFIX);
+ }
+ } else if (udev.type == PHYSDEV) {
+ if (strcmp(action, "add") == 0) {
+ /* wait for sysfs */
+ dbg("devices add");
+
+ snprintf(path, SYSFS_PATH_MAX, "%s%s", sysfs_path, devpath);
+ devices_dev = wait_devices_device_open(path);
+ if (!devices_dev) {
+ dbg("devices device unavailable (probably remove has beaten us)");
+ goto hotplug;
+ }
+ dbg("devices device opened '%s'", path);
+
+ wait_for_devices_device(devices_dev, &error);
+
+ sysfs_close_device(devices_dev);
+ } else if (strcmp(action, "remove") == 0) {
+ dbg("devices remove");
+ }
+ } else {
+ dbg("unhandled");