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[0/2] fstests: add btrfs encryption support

Message ID cover.1662417905.git.sweettea-kernel@dorminy.me (mailing list archive)
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Series fstests: add btrfs encryption support | expand

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Sweet Tea Dorminy Sept. 6, 2022, 12:31 a.m. UTC 
btrfs has several differences from other filesystems currently
integrated with fscrypt. It uses a newly proposed extent context object;
only works with direct key policies; and allows partially encrypted
directories. The design document can be found at [1].

As such, this splits a couple of tests and filters encryption policy
printing to account for different filesystems' different default
policies.

Tests for subvolume encryption, a key feature for btrfs, are not yet complete.
 
Necessary btrfs-progs changes are available at [2]; kernel changes
are available at [3]. 

[1]
https://lore.kernel.org/linux-btrfs/YXGyq+buM79A1S0L@relinquished.localdomain/
[2] https://lore.kernel.org/linux-btrfs/cover.1662420176.git.sweettea-kernel@dorminy.me
[3] https://lore.kernel.org/linux-btrfs/cover.1662417859.git.sweettea-kernel@dorminy.me

Changelog:

v2:
 - Mostly rewrote and simplified the changes, as btrfs no longer requires
   a separate new encryption policy.
 - Added a filter function to account for different default encryption
   policies.
 - Split Adiantum tests, as only the direct-key variant works with
   btrfs.
 - https://lore.kernel.org/linux-btrfs/cover.1662417905.git.sweettea-kernel@dorminy.me

v1: 
 - https://lore.kernel.org/linux-btrfs/cover.1660729861.git.sweettea-kernel@dorminy.me

Sweet Tea Dorminy (2):
  fstests: fscrypt: enable btrfs testing.
  fstests: fscrypt: update tests of encryption contents for btrfs

 common/encrypt           | 141 +++++++++++++++++++++++++++++++++++++--
 common/verity            |   2 +-
 src/fscrypt-crypt-util.c |  18 ++++-
 tests/btrfs/298          |  85 +++++++++++++++++++++++
 tests/btrfs/298.out      |  47 +++++++++++++
 tests/generic/395        |  10 ++-
 tests/generic/395.out    |  18 ++---
 tests/generic/435        |  10 ++-
 tests/generic/550        |   2 -
 tests/generic/550.out    |   5 --
 tests/generic/576        |   3 +-
 tests/generic/576.out    |   6 +-
 tests/generic/580        |   5 +-
 tests/generic/580.out    |  18 ++---
 tests/generic/581        |   4 +-
 tests/generic/581.out    |  12 ++--
 tests/generic/584        |   2 -
 tests/generic/584.out    |   5 --
 tests/generic/720        |  26 ++++++++
 tests/generic/720.out    |   6 ++
 tests/generic/721        |  26 ++++++++
 tests/generic/721.out    |   6 ++
 22 files changed, 398 insertions(+), 59 deletions(-)
 create mode 100755 tests/btrfs/298
 create mode 100644 tests/btrfs/298.out
 create mode 100755 tests/generic/720
 create mode 100644 tests/generic/720.out
 create mode 100755 tests/generic/721
 create mode 100644 tests/generic/721.out