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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2021 SUSE Linux Products GmbH. All Rights Reserved.
#
# FS QA Test No. btrfs/235
#
# Test that if we set a capability on a file but not on the next files we create,
# send/receive operations only apply the capability to the first file, the one
# for which we have set a capability.
#
. ./common/preamble
_begin_fstest auto quick send
# Override the default cleanup function.
_cleanup()
{
cd /
rm -fr $send_files_dir
rm -f $tmp.*
}
. ./common/filter
_supported_fs btrfs
_require_test
_require_scratch
_require_command "$SETCAP_PROG" setcap
_require_command "$GETCAP_PROG" getcap
send_files_dir=$TEST_DIR/btrfs-test-$seq
rm -fr $send_files_dir
mkdir $send_files_dir
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
touch $SCRATCH_MNT/foo
touch $SCRATCH_MNT/bar
touch $SCRATCH_MNT/baz
# Set a capability only on file foo. Note that file foo has a lower inode number
# then files bar and baz - we want to test that if a file with a lower inode
# number has a capability set, after a send/receive, the capability is not set
# on the next files that have higher inode numbers.
$SETCAP_PROG cap_net_raw=p $SCRATCH_MNT/foo
# Now create the base snapshot, which is going to be the parent snapshot for
# a later incremental send.
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
$SCRATCH_MNT/mysnap1 > /dev/null
$BTRFS_UTIL_PROG send -f $send_files_dir/1.snap \
$SCRATCH_MNT/mysnap1 2>&1 1>/dev/null | _filter_scratch
# Now do something similar as before, but this time to test incremental
# send/receive instead.
touch $SCRATCH_MNT/foo2
touch $SCRATCH_MNT/bar2
touch $SCRATCH_MNT/baz2
# Add a capability to file bar now. We want to check later that the capability
# is not added to file baz or any of the new files foo2, bar2 and baz2.
$SETCAP_PROG cap_net_raw=p $SCRATCH_MNT/bar
# Add a capability to the new file foo2, we want to check later that it is not
# incorrectly propagated to the new files bar2 and baz2.
$SETCAP_PROG cap_sys_nice=ep $SCRATCH_MNT/foo2
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
$SCRATCH_MNT/mysnap2 > /dev/null
$BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 -f $send_files_dir/2.snap \
$SCRATCH_MNT/mysnap2 2>&1 1>/dev/null | _filter_scratch
# Now recreate the filesystem by receiving both send streams.
_scratch_unmount
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
$BTRFS_UTIL_PROG receive -f $send_files_dir/1.snap $SCRATCH_MNT > /dev/null
$BTRFS_UTIL_PROG receive -f $send_files_dir/2.snap $SCRATCH_MNT > /dev/null
echo "File mysnap1/foo capabilities:"
_getcap $SCRATCH_MNT/mysnap1/foo | _filter_scratch
echo "File mysnap1/bar capabilities:"
_getcap $SCRATCH_MNT/mysnap1/bar | _filter_scratch
echo "File mysnap1/baz capabilities:"
_getcap $SCRATCH_MNT/mysnap1/baz | _filter_scratch
echo "File mysnap2/foo capabilities:"
_getcap $SCRATCH_MNT/mysnap2/foo | _filter_scratch
echo "File mysnap2/bar capabilities:"
_getcap $SCRATCH_MNT/mysnap2/bar | _filter_scratch
echo "File mysnap2/baz capabilities:"
_getcap $SCRATCH_MNT/mysnap2/baz | _filter_scratch
echo "File mysnap2/foo2 capabilities:"
_getcap $SCRATCH_MNT/mysnap2/foo2 | _filter_scratch
echo "File mysnap2/bar2 capabilities:"
_getcap $SCRATCH_MNT/mysnap2/bar2 | _filter_scratch
echo "File mysnap2/baz2 capabilities:"
_getcap $SCRATCH_MNT/mysnap2/baz2 | _filter_scratch
status=0
exit
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