common/populate: add verity files to populate xfs images
If verity is enabled on a filesystem, we should create some sample
verity files.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
diff --git a/common/populate b/common/populate
index 35071f4..ab9495e 100644
--- a/common/populate
+++ b/common/populate
@@ -520,6 +520,30 @@
done
fi
+ # verity merkle trees
+ is_verity="$(_xfs_has_feature "$SCRATCH_MNT" verity -v)"
+ if [ $is_verity -gt 0 ]; then
+ echo "+ fsverity"
+
+ # Create a biggish file with all zeroes, because metadump
+ # won't preserve data blocks and we don't want the hashes to
+ # stop working for our sample fs.
+ for ((pos = 0, i = 88; pos < 23456789; pos += 234567, i++)); do
+ $XFS_IO_PROG -f -c "pwrite -S 0 $pos 234567" "$SCRATCH_MNT/verity"
+ done
+
+ fsverity enable "$SCRATCH_MNT/verity"
+
+ # Create a sparse file
+ $XFS_IO_PROG -f -c "pwrite -S 0 0 3" -c "pwrite -S 0 23456789 3" "$SCRATCH_MNT/sparse_verity"
+ fsverity enable "$SCRATCH_MNT/sparse_verity"
+
+ # Create a salted sparse file
+ $XFS_IO_PROG -f -c "pwrite -S 0 0 3" -c "pwrite -S 0 23456789 3" "$SCRATCH_MNT/salted_verity"
+ local salt="5846532066696e616c6c7920686173206461746120636865636b73756d732121" # XFS finally has data checksums!!
+ fsverity enable --salt="$salt" "$SCRATCH_MNT/salted_verity"
+ fi
+
# Copy some real files (xfs tests, I guess...)
echo "+ real files"
test $fill -ne 0 && __populate_fill_fs "${SCRATCH_MNT}" 5
