mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eric Biggers
eff343fb5d
Most of the fs-verity tests fail if the fs.verity.require_signatures sysctl has been set to 1. Update them to set this sysctl to 0 at the beginning of the test and restore it to its previous value at the end. generic/577 intentionally sets this sysctl to 1. Make it restore the previous value at the end of the test rather than assuming it was 0. Also simplify _require_fsverity_builtin_signatures() to just check for the presence of the file /proc/sys/fs/verity/require_signatures rather than check whether the fs-verity keyring is listed in /proc/keys. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
83 lines
2.2 KiB
Bash
Executable File
83 lines
2.2 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright 2018 Google LLC
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#
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# FS QA Test generic/576
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#
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# Test using fs-verity and fscrypt simultaneously. This primarily verifies
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# correct ordering of the hooks for each feature: fscrypt needs to be first.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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_restore_fsverity_signatures
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/verity
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. ./common/encrypt
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_verity
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_require_scratch_encryption
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_require_command "$KEYCTL_PROG" keyctl
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_disable_fsverity_signatures
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_scratch_mkfs_encrypted_verity &>> $seqres.full
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_scratch_mount
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fsv_orig_file=$tmp.file
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edir=$SCRATCH_MNT/edir
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fsv_file=$edir/file.fsv
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# Set up an encrypted directory.
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_new_session_keyring
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keydesc=$(_generate_session_encryption_key)
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mkdir $edir
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_set_encpolicy $edir $keydesc
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# Create a file within the encrypted directory and enable verity on it.
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# Then check that it has an encryption policy as well.
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head -c 100000 /dev/zero > $fsv_orig_file
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cp $fsv_orig_file $fsv_file
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_fsv_enable $fsv_file
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echo
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$XFS_IO_PROG -r -c "get_encpolicy" $fsv_file | _filter_scratch \
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| sed 's/Master key descriptor:.*/Master key descriptor: 0000000000000000/'
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echo
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# Verify that the file contents are as expected. This should be going through
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# both the decryption and verity I/O paths.
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cmp $fsv_orig_file $fsv_file && echo "Files matched"
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# Just in case, try again after a mount cycle to empty the page cache.
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_scratch_cycle_mount
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cmp $fsv_orig_file $fsv_file && echo "Files matched"
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# Corrupt some bytes as a sanity check that fs-verity is really working.
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# This also verifies that the data on-disk is really encrypted, since otherwise
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# the data being written here would be identical to the old data.
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head -c 1000 /dev/zero | _fsv_scratch_corrupt_bytes $fsv_file 50000
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md5sum $fsv_file |& _filter_scratch
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# success, all done
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status=0
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exit
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