btrfs-progs/tests/convert-tests/008-readonly-image/test.sh
Qu Wenruo 4f3ccdd518 btrfs-progs: convert-test: Check if the ext2_save/image is read only
Old convert codes uses both 0400 permission and INODE_READONLY flag to
make the converted ext2 image readonly.

While new convert treat the inode just as normal inode, with no special
inode flag and uses 0600 permission.
This makes user able to modify converted image unintentionally and make
rollback fails.

This test case will test the regression.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2016-08-19 13:53:28 +02:00

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#!/bin/bash
# Check if the converted ext2 image is readonly
source $TOP/tests/common
source $TOP/tests/common.convert
setup_root_helper
prepare_test_dev 512M
check_prereq btrfs-convert
default_mke2fs="mke2fs -t ext4 -b 4096"
convert_test_preamble '' 'readonly image test' 16k "$default_mke2fs"
convert_test_prep_fs $default_mke2fs
run_check_umount_test_dev
convert_test_do_convert
run_check_mount_test_dev
# It's expected to fail
$SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/ext2_save/image bs=1M count=1 \
&> /dev/null
if [ $? -ne 1 ]; then
echo "after convert ext2_save/image is not read-only"
exit 1
fi
run_check_umount_test_dev
convert_test_post_rollback