[PATCH 0/4] fscrypt: make '-o test_dummy_encryption' support v2 policies

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v1 encryption policies are deprecated in favor of v2, and some new
features (e.g. encryption+casefolding) are only being added for v2.

As a result, the "test_dummy_encryption" mount option (which is used for
encryption I/O testing with xfstests) needs to support v2 policies.

Therefore, this patchset adds support for specifying
"test_dummy_encryption=v2" (or "test_dummy_encryption=v1").
To make this possible, it reworks the way the test_dummy_encryption
mount option is handled to make it more flexible than a flag, and to
automatically add the test dummy key to the filesystem's keyring.

Patch 4 additionally changes the default to "v2".

This patchset applies to v5.7-rc4.

Eric Biggers (4):
  linux/parser.h: add include guards
  fscrypt: add fscrypt_add_test_dummy_key()
  fscrypt: support test_dummy_encryption=v2
  fscrypt: make test_dummy_encryption use v2 by default

 Documentation/filesystems/f2fs.rst |   6 +-
 fs/crypto/fscrypt_private.h        |   3 +
 fs/crypto/keyring.c                | 117 +++++++++++++++++----------
 fs/crypto/keysetup.c               |  15 ++--
 fs/crypto/policy.c                 | 125 +++++++++++++++++++++++++++++
 fs/ext4/ext4.h                     |   7 +-
 fs/ext4/super.c                    |  68 ++++++++++++----
 fs/f2fs/f2fs.h                     |   4 +-
 fs/f2fs/super.c                    |  85 ++++++++++++++------
 include/linux/fscrypt.h            |  52 ++++++++++--
 include/linux/parser.h             |   5 +-
 11 files changed, 383 insertions(+), 104 deletions(-)

-- 
2.26.2




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