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
-- 
2.25.1