int udev_node_remove(struct udev_device *dev)
{
struct udev *udev = udev_device_get_udev(dev);
struct udev_list_entry *list_entry;
const char *devnode;
char partitionname[UTIL_PATH_SIZE];
struct stat stats;
int err = 0;
int num;
/* remove,update symlinks, remove symlinks from name index */
udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(dev))
link_update(dev, udev_list_entry_get_name(list_entry), 0);
devnode = udev_device_get_devnode(dev);
if (devnode == NULL)
return 0;
if (stat(devnode, &stats) != 0) {
info(udev, "device node '%s' not found\n", devnode);
return 0;
}
if (stats.st_rdev != udev_device_get_devnum(dev)) {
info(udev, "device node '%s' points to a different device, skip removal\n", devnode);
return -1;
}
info(udev, "removing device node '%s'\n", devnode);
err = util_unlink_secure(udev, devnode);
if (err)
return err;
num = udev_device_get_num_fake_partitions(dev);
if (num > 0) {
int i;
info(udev, "removing all_partitions '%s[1-%i]'\n", devnode, num);
if (num > 255)
return -1;
for (i = 1; i <= num; i++) {
snprintf(partitionname, sizeof(partitionname), "%s%d", devnode, i);
partitionname[sizeof(partitionname)-1] = '\0';
util_unlink_secure(udev, partitionname);
}
}
util_delete_path(udev, devnode);
return err;
}
int udev_node_remove(struct udev_device *dev)
{
struct udev *udev = udev_device_get_udev(dev);
struct udev_list_entry *list_entry;
const char *devnode;
struct stat stats;
struct udev_device *dev_check;
char filename[UTIL_PATH_SIZE];
int err = 0;
/* remove/update symlinks, remove symlinks from name index */
udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(dev))
link_update(dev, udev_list_entry_get_name(list_entry), 0);
devnode = udev_device_get_devnode(dev);
if (devnode == NULL)
goto out;
if (stat(devnode, &stats) != 0) {
info(udev, "device node '%s' not found\n", devnode);
goto out;
}
if (stats.st_rdev != udev_device_get_devnum(dev)) {
info(udev, "device node '%s' points to a different device, skip removal\n", devnode);
err = -1;
goto out;
}
dev_check = udev_device_new_from_syspath(udev, udev_device_get_syspath(dev));
if (dev_check != NULL) {
/* do not remove device node if the same sys-device is re-created in the meantime */
info(udev, "keeping device node of existing device'%s'\n", devnode);
udev_device_unref(dev_check);
goto out;
}
info(udev, "removing device node '%s'\n", devnode);
err = util_unlink_secure(udev, devnode);
if (err == 0)
util_delete_path(udev, devnode);
/* remove /dev/{block,char}/$major:$minor */
snprintf(filename, sizeof(filename), "%s/%s/%u:%u",
udev_get_dev_path(udev),
strcmp(udev_device_get_subsystem(dev), "block") == 0 ? "block" : "char",
major(udev_device_get_devnum(dev)), minor(udev_device_get_devnum(dev)));
unlink(filename);
out:
return err;
}
