[PATCH 2/4] ext4: wire up FS_IOC_GET_ENCRYPTION_NONCE
From: Eric Biggers <ebiggers@kernel.org>
Date: 2020-03-15 01:39:19
Also in:
linux-api, linux-f2fs-devel, linux-fscrypt, linux-fsdevel
Subsystem:
ext4 file system, filesystems (vfs and infrastructure), the rest · Maintainers:
"Theodore Ts'o", Alexander Viro, Christian Brauner, Linus Torvalds
From: Eric Biggers <redacted> This new ioctl retrieves a file's encryption nonce, which is useful for testing. See the corresponding fs/crypto/ patch for more details. Signed-off-by: Eric Biggers <redacted> --- fs/ext4/ioctl.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a0ec750018dd3..0c1d1720cf1ae 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c@@ -1210,6 +1210,11 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return -EOPNOTSUPP; return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); + case FS_IOC_GET_ENCRYPTION_NONCE: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_get_nonce(filp, (void __user *)arg); + case EXT4_IOC_CLEAR_ES_CACHE: { if (!inode_owner_or_capable(inode))
@@ -1370,6 +1375,7 @@ long ext4_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: case EXT4_IOC_SHUTDOWN: case FS_IOC_GETFSMAP: case FS_IOC_ENABLE_VERITY:
--
2.25.1