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List: linux-ext4
Subject: [PATCH v4 0/8] xfstests: add fs-verity tests
From: Eric Biggers <ebiggers () kernel ! org>
Date: 2019-09-30 21:15:45
Message-ID: 20190930211553.64208-1-ebiggers () kernel ! org
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Add tests for fs-verity. fs-verity is an ext4 and f2fs filesystem
feature which provides Merkle tree based hashing (similar to dm-verity)
for individual read-only files, mainly for the purpose of efficient
authenticity verification. Other filesystems may add fs-verity support
later, using the same API.
Running these tests requires:
- Kernel v5.4-rc1 or later configured with CONFIG_FS_VERITY=y,
and optionally CONFIG_FS_ENCRYPTION=y (for generic/904),
CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y (for generic/905), and
CONFIG_CRYPTO_SHA512=y (for generic/903 to cover SHA-512).
- The 'fsverity' utility program from
https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/fsverity-utils.git
- e2fsprogs v1.45.2 or later for ext4 tests, or f2fs-tools v1.11.0 or
later for f2fs tests
- generic/905 also requires the 'openssl' program.
Example with kvm-xfstests:
$ kvm-xfstests -c ext4,f2fs -g verity
For more information about fs-verity, see
https://www.kernel.org/doc/html/latest/filesystems/fsverity.html
This patchset can also be retrieved from tag "fsverity_2019-09-30" of
https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/xfstests-dev.git
Note: my other pending xfstests patchset
"xfstests: add tests for fscrypt key management improvements"
renames the function _generate_encryption_key(), which is used by
generic/904 in this patchset. This will need to be fixed up when the
second of these two patchsets is merged.
Changed since v3:
- Update generic/900 to also test executing FS_IOC_ENABLE_VERITY while
another process is already executing it on the same file.
Changed since v2:
- Updated the signature verification test (generic/905) to match the
latest kernel and fsverity-utils changes.
- Added _fsv_sign() utility function.
- Correctly skip the fs-verity tests on ext3-style filesystems.
Changed since v1:
- Updated all tests to use the new fs-verity kernel API.
- Many cleanups, additional checks in the tests, and other improvements.
- Addressed review comments from Eryu Guan.
- Added a test for the built-in signature verification feature.
- Removed the fs-verity descriptor validation test, since the on-disk
format of this part was greatly simplified and made fs-specific.
Eric Biggers (8):
common/filter: add _filter_xfs_io_fiemap()
common/verity: add common functions for testing fs-verity
generic: test general behavior of verity files
generic: test access controls on the fs-verity ioctls
generic: test corrupting verity files
generic: test that fs-verity is using the correct measurement values
generic: test using fs-verity and fscrypt simultaneously
generic: test the fs-verity built-in signature verification support
common/config | 2 +
common/filter | 24 +++++
common/verity | 215 ++++++++++++++++++++++++++++++++++++++++++
tests/generic/900 | 199 ++++++++++++++++++++++++++++++++++++++
tests/generic/900.out | 74 +++++++++++++++
tests/generic/901 | 73 ++++++++++++++
tests/generic/901.out | 14 +++
tests/generic/902 | 154 ++++++++++++++++++++++++++++++
tests/generic/902.out | 91 ++++++++++++++++++
tests/generic/903 | 112 ++++++++++++++++++++++
tests/generic/903.out | 5 +
tests/generic/904 | 80 ++++++++++++++++
tests/generic/904.out | 12 +++
tests/generic/905 | 150 +++++++++++++++++++++++++++++
tests/generic/905.out | 42 +++++++++
tests/generic/group | 6 ++
16 files changed, 1253 insertions(+)
create mode 100644 common/verity
create mode 100755 tests/generic/900
create mode 100644 tests/generic/900.out
create mode 100755 tests/generic/901
create mode 100644 tests/generic/901.out
create mode 100755 tests/generic/902
create mode 100644 tests/generic/902.out
create mode 100755 tests/generic/903
create mode 100644 tests/generic/903.out
create mode 100755 tests/generic/904
create mode 100644 tests/generic/904.out
create mode 100755 tests/generic/905
create mode 100644 tests/generic/905.out
--
2.23.0.444.g18eeb5a265-goog
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