diff mbox series

[RFC,v3,9/9] btrfs: test snapshotting encrypted subvol

Message ID 400435f749f54e07a23e8e3c67bb717646747cc4.1691530000.git.sweettea-kernel@dorminy.me (mailing list archive)
State Not Applicable
Headers show
Series fstests: add btrfs encryption testing | expand

Commit Message

Sweet Tea Dorminy Aug. 8, 2023, 5:21 p.m. UTC 
Make sure that snapshots of encrypted data are readable and writeable.

Test deliberately high-numbered to not conflict.

Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
---
 tests/btrfs/614     |  76 ++++++++++++++++++++++++++++++
 tests/btrfs/614.out | 111 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 187 insertions(+)
 create mode 100755 tests/btrfs/614
 create mode 100644 tests/btrfs/614.out

Comments

Sweet Tea Dorminy Aug. 8, 2023, 6:46 p.m. UTC | #1 
On 8/8/23 13:21, Sweet Tea Dorminy wrote:
> Make sure that snapshots of encrypted data are readable and writeable.
> 
> Test deliberately high-numbered to not conflict.
> 
> Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
> ---
>   tests/btrfs/614     |  76 ++++++++++++++++++++++++++++++
>   tests/btrfs/614.out | 111 ++++++++++++++++++++++++++++++++++++++++++++
>   2 files changed, 187 insertions(+)
>   create mode 100755 tests/btrfs/614
>   create mode 100644 tests/btrfs/614.out
> 
> diff --git a/tests/btrfs/614 b/tests/btrfs/614
> new file mode 100755
> index 00000000..87dd27f9
> --- /dev/null
> +++ b/tests/btrfs/614
> @@ -0,0 +1,76 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2023 Meta Platforms, Inc.  All Rights Reserved.
> +#
> +# FS QA Test 614
> +#
> +# Try taking a snapshot of an encrypted subvolume. Make sure the snapshot is
> +# still readable. Rewrite part of the subvol with the same data; make sure it's
> +# still readable.
> +#
> +. ./common/preamble
> +_begin_fstest auto encrypt
> +
> +# Import common functions.
> +. ./common/encrypt
> +. ./common/filter
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +
> +_require_test
> +_require_scratch
> +_require_scratch_encryption -v 2
> +_require_command "$KEYCTL_PROG" keyctl
> +
> +_scratch_mkfs_encrypted &>> $seqres.full
> +_scratch_mount
> +
> +udir=$SCRATCH_MNT/reference
> +dir=$SCRATCH_MNT/subvol
> +dir2=$SCRATCH_MNT/subvol2
> +$BTRFS_UTIL_PROG subvolume create $dir >> $seqres.full
> +mkdir $udir
> +
> +_set_encpolicy $dir $TEST_KEY_IDENTIFIER
> +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
> +
> +# get files with lots of extents by using backwards writes.
> +for j in `seq 0 50`; do
> +	for i in `seq 20 -1 1`; do
> +		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> +		$dir/foo-$j >> $seqres.full | _filter_xfs_io
> +		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
> +		$udir/foo-$j >> $seqres.full | _filter_xfs_io
> +	done
> +done
> +
> +$BTRFS_UTIL_PROG subvolume snapshot $dir $dir2 | _filter_scratch
> +
> +_scratch_remount
> +_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
> +sleep 30
Just noticed this sleep, will remove it in the next version.
diff mbox series

Patch

diff --git a/tests/btrfs/614 b/tests/btrfs/614
new file mode 100755
index 00000000..87dd27f9
--- /dev/null
+++ b/tests/btrfs/614
@@ -0,0 +1,76 @@ 
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2023 Meta Platforms, Inc.  All Rights Reserved.
+#
+# FS QA Test 614
+#
+# Try taking a snapshot of an encrypted subvolume. Make sure the snapshot is
+# still readable. Rewrite part of the subvol with the same data; make sure it's
+# still readable.
+#
+. ./common/preamble
+_begin_fstest auto encrypt
+
+# Import common functions.
+. ./common/encrypt
+. ./common/filter
+
+# real QA test starts here
+_supported_fs btrfs
+
+_require_test
+_require_scratch
+_require_scratch_encryption -v 2
+_require_command "$KEYCTL_PROG" keyctl
+
+_scratch_mkfs_encrypted &>> $seqres.full
+_scratch_mount
+
+udir=$SCRATCH_MNT/reference
+dir=$SCRATCH_MNT/subvol
+dir2=$SCRATCH_MNT/subvol2
+$BTRFS_UTIL_PROG subvolume create $dir >> $seqres.full
+mkdir $udir
+
+_set_encpolicy $dir $TEST_KEY_IDENTIFIER
+_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
+
+# get files with lots of extents by using backwards writes.
+for j in `seq 0 50`; do
+	for i in `seq 20 -1 1`; do
+		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
+		$dir/foo-$j >> $seqres.full | _filter_xfs_io
+		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
+		$udir/foo-$j >> $seqres.full | _filter_xfs_io
+	done
+done
+
+$BTRFS_UTIL_PROG subvolume snapshot $dir $dir2 | _filter_scratch
+
+_scratch_remount
+_add_enckey $SCRATCH_MNT "$TEST_RAW_KEY"
+sleep 30
+echo "Diffing $dir and $dir2"
+diff $dir $dir2
+
+echo "Rewriting $dir2 partly"
+# rewrite half of each file in the snapshot
+for j in `seq 0 50`; do
+	for i in `seq 10 -1 1`; do
+		$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
+		$dir2/foo-$j >> $seqres.full | _filter_xfs_io
+	done
+done
+
+echo "Diffing $dir and $dir2"
+diff $dir $dir2
+
+echo "Dropping key and diffing"
+_rm_enckey $SCRATCH_MNT $TEST_KEY_IDENTIFIER
+diff $dir $dir2 |& _filter_scratch | _filter_nokey_filenames
+
+$BTRFS_UTIL_PROG subvolume delete $dir > /dev/null 2>&1
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/614.out b/tests/btrfs/614.out
new file mode 100644
index 00000000..390807e8
--- /dev/null
+++ b/tests/btrfs/614.out
@@ -0,0 +1,111 @@ 
+QA output created by 614
+Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
+Create a snapshot of 'SCRATCH_MNT/subvol' in 'SCRATCH_MNT/subvol2'
+Added encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
+Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
+Rewriting /mnt/scratch/subvol2 partly
+Diffing /mnt/scratch/subvol and /mnt/scratch/subvol2
+Dropping key and diffing
+Removed encryption key with identifier 69b2f6edeee720cce0577937eb8a6751
+NOKEY_NAME: NOKEY_NAME/NOKEY_NAME/NOKEY_NAME: NOKEY_NAME NOKEY_NAME NOKEY_NAME NOKEY_NAME
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