[RFC PATCH 0/8] xfsprogs: support fscrypt API additions in xfs_io

[Eric Biggers <ebiggers@kernel.org>]

Hello,

This patchset updates xfs_io to support the API additions from the
kernel patchset "[PATCH v8 00/20] fscrypt: key management improvements"
https://lkml.kernel.org/linux-fsdevel/20190805162521.90882-1-ebiggers@kernel.org/T/#u

Commands are added to wrap the new ioctls for managing filesystem
encryption keys.  Also, the existing 'get_encpolicy' and 'set_encpolicy'
commands are updated to support v2 encryption policies.

The purpose of all this is to allow xfstests to test the new APIs.

Note: currently only ext4, f2fs, and ubifs support encryption.  But I
was told previously that since the fscrypt API is generic and may be
supported by XFS in the future, the command-line wrappers for the
fscrypt ioctls should be in xfs_io rather than in fstests directly
(https://marc.info/?l=fstests&m=147976255831951&w=2).

We'll want to wait for the kernel patches to be mainlined before merging
this, but I'm making it available now for any early feedback.

This patchset applies to xfsprogs v5.2.0.  It can also be retrieved from tag
"fscrypt-key-mgmt-improvements_2019-08-12" of
https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/xfsprogs-dev.git

Eric Biggers (8):
  xfs_io/encrypt: remove unimplemented encryption modes
  xfs_io/encrypt: update to UAPI definitions from Linux v5.4
  xfs_io/encrypt: add new encryption modes
  xfs_io/encrypt: extend 'get_encpolicy' to support v2 policies
  xfs_io/encrypt: extend 'set_encpolicy' to support v2 policies
  xfs_io/encrypt: add 'add_enckey' command
  xfs_io/encrypt: add 'rm_enckey' command
  xfs_io/encrypt: add 'enckey_status' command

 io/encrypt.c      | 786 ++++++++++++++++++++++++++++++++++++++++------
 man/man8/xfs_io.8 |  70 ++++-
 2 files changed, 750 insertions(+), 106 deletions(-)

-- 
2.23.0.rc1.153.gdeed80330f-goog