| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright 2023 Google LLC |
| # |
| # FS QA Test No. 739 |
| # |
| # Verify the on-disk format of encrypted files that use a crypto data unit size |
| # that differs from the filesystem block size. This tests the functionality |
| # that was introduced in Linux 6.7 by kernel commit 5b1188847180 |
| # ("fscrypt: support crypto data unit size less than filesystem block size"). |
| # |
| . ./common/preamble |
| _begin_fstest auto quick encrypt |
| |
| . ./common/filter |
| . ./common/encrypt |
| |
| _wants_kernel_commit 5b1188847180 \ |
| "fscrypt: support crypto data unit size less than filesystem block size" |
| |
| # For now, just test 512-byte and 1024-byte data units. Filesystems accept |
| # power-of-2 sizes between 512 and the filesystem block size, inclusively. |
| # Testing 512 and 1024 ensures this test will run for any FS block size >= 1024 |
| # (provided that the filesystem supports sub-block data units at all). |
| _verify_ciphertext_for_encryption_policy AES-256-XTS AES-256-CTS-CBC v2 log2_dusize=9 |
| _verify_ciphertext_for_encryption_policy AES-256-XTS AES-256-CTS-CBC v2 log2_dusize=10 |
| |
| # success, all done |
| status=0 |
| exit |
