- switch(act_type) {
- case UDEVSTART:
- dbg("udevstart");
- namedev_init();
- retval = udev_start();
- break;
- case ADD:
- dbg("udev add");
-
- /* open the device */
- snprintf(path, SYSFS_PATH_MAX, "%s%s", sysfs_path, udev.devpath);
- class_dev = sysfs_open_class_device_path(path);
- if (class_dev == NULL) {
- dbg ("sysfs_open_class_device_path failed");
- break;
- }
- dbg("opened class_dev->name='%s'", class_dev->name);
+ /* let the executed programs know if we handle the whole hotplug event */
+ managed_event = manage_hotplug_event();
+ if (managed_event)
+ setenv("MANAGED_EVENT", "1", 1);
+
+ action = getenv("ACTION");
+ devpath = getenv("DEVPATH");
+ subsystem = getenv("SUBSYSTEM");
+ /* older kernels passed the SUBSYSTEM only as argument */
+ if (!subsystem && argc == 2)
+ subsystem = argv[1];
+
+ udev_init_device(&udev, devpath, subsystem);
+
+ if (!action || !subsystem || !devpath) {
+ dbg("action, subsystem or devpath missing");
+ goto hotplug;
+ }
+
+ /* export logging flag, as called scripts may want to do the same as udev */
+ if (udev_log)
+ setenv("UDEV_LOG", "1", 1);
+
+ 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, 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 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");