On Tue, Oct 10, 2023 at 04:25:54PM -0400, Josef Bacik wrote:
> From: Sweet Tea Dorminy <sweettea-kernel@xxxxxxxxxx>
>
> btrfs will have different inode and data nonces, so we need to be
> specific about which nonce each use needs. For now, there is no
> difference in the two functions.
>
> Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@xxxxxxxxxx>
> ---
> common/encrypt | 33 ++++++++++++++++++++++++++-------
> tests/f2fs/002 | 2 +-
> tests/generic/613 | 4 ++--
> 3 files changed, 29 insertions(+), 10 deletions(-)
>
> diff --git a/common/encrypt b/common/encrypt
> index 1a77e23b..04b6e5ac 100644
> --- a/common/encrypt
> +++ b/common/encrypt
> @@ -488,7 +488,7 @@ _add_fscrypt_provisioning_key()
> # Retrieve the encryption nonce of the given inode as a hex string. The nonce
> # was randomly generated by the filesystem and isn't exposed directly to
> # userspace. But it can be read using the filesystem's debugging tools.
> -_get_encryption_nonce()
> +_get_encryption_file_nonce()
> {
> local device=$1
> local inode=$2
> @@ -532,15 +532,34 @@ _get_encryption_nonce()
> }'
> ;;
> *)
> - _fail "_get_encryption_nonce() isn't implemented on $FSTYP"
> + _fail "_get_encryption_file_nonce() isn't implemented on $FSTYP"
> ;;
> esac
> }
>
> -# Require support for _get_encryption_nonce()
> +# Retrieve the encryption nonce used to encrypt the data of the given inode as
> +# a hex string. The nonce was randomly generated by the filesystem and isn't
> +# exposed directly to userspace. But it can be read using the filesystem's
> +# debugging tools.
> +_get_encryption_data_nonce()
> +{
> + local device=$1
> + local inode=$2
> +
> + case $FSTYP in
> + ext4|f2fs)
> + _get_encryption_file_nonce $device $inode
> + ;;
> + *)
> + _fail "_get_encryption_data_nonce() isn't implemented on $FSTYP"
> + ;;
> + esac
> +}
Shouldn't this be _get_encryption_extent_nonce(), taking the offset of the
extent as a parameter?
Also I think it would sound better as _get_extent_encryption_nonce(), and
likewise _get_file_encryption_nonce().
- Eric
