Re: [PATCH 0/4] fscrypt: add ioctl to get file's encryption nonce

[Eric Biggers <ebiggers@xxxxxxxxxx>]

On Sat, Mar 14, 2020 at 01:50:48PM -0700, Eric Biggers wrote:
> This patchset adds an ioctl FS_IOC_GET_ENCRYPTION_NONCE which retrieves
> the nonce from an encrypted file or directory.
> 
> This is useful for automated ciphertext verification testing.
> 
> See patch #1 for more details.
> 
> Eric Biggers (4):
>   fscrypt: add FS_IOC_GET_ENCRYPTION_NONCE ioctl
>   ext4: wire up FS_IOC_GET_ENCRYPTION_NONCE
>   f2fs: wire up FS_IOC_GET_ENCRYPTION_NONCE
>   ubifs: wire up FS_IOC_GET_ENCRYPTION_NONCE
> 
>  Documentation/filesystems/fscrypt.rst | 11 +++++++++++
>  fs/crypto/fscrypt_private.h           | 20 ++++++++++++++++++++
>  fs/crypto/keysetup.c                  | 16 ++--------------
>  fs/crypto/policy.c                    | 21 ++++++++++++++++++++-
>  fs/ext4/ioctl.c                       |  6 ++++++
>  fs/f2fs/file.c                        | 11 +++++++++++
>  fs/ubifs/ioctl.c                      |  4 ++++
>  include/linux/fscrypt.h               |  6 ++++++
>  include/uapi/linux/fscrypt.h          |  1 +
>  9 files changed, 81 insertions(+), 15 deletions(-)
> 
> 
> base-commit: 98d54f81e36ba3bf92172791eba5ca5bd813989b

Any comments on this?

- Eric

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