ubifs: wire up FS_IOC_GET_ENCRYPTION_NONCE

This new ioctl retrieves a file's encryption nonce, which is useful for
testing.  See the corresponding fs/crypto/ patch for more details.

Link: https://lore.kernel.org/r/20200314205052.93294-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>

diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index d49fc04..3df9be2 100644 (file)
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -208,6 +208,9 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
                return fscrypt_ioctl_get_key_status(file, (void __user *)arg);
 
+       case FS_IOC_GET_ENCRYPTION_NONCE:
+               return fscrypt_ioctl_get_nonce(file, (void __user *)arg);
+
        default:
                return -ENOTTY;
        }
@@ -230,6 +233,7 @@ long ubifs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        case FS_IOC_REMOVE_ENCRYPTION_KEY:
        case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
        case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
+       case FS_IOC_GET_ENCRYPTION_NONCE:
                break;
        default:
                return -ENOIOCTLCMD;