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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014 Filipe Manana. All Rights Reserved.
#
# FS QA Test No. btrfs/044
#
# Regression test for a btrfs incremental send issue where under certain
# scenarios invalid paths for utimes, chown and chmod operations were sent
# to the send stream, causing btrfs receive to fail.
#
# If a directory had a move/rename operation delayed, and none of its parent
# directories, except for the immediate one, had delayed move/rename operations,
# after processing the directory's references, the incremental send code would
# issue invalid paths for utimes, chown and chmod operations.
#
# This issue is fixed by the following linux kernel btrfs patch:
#
# Btrfs: fix send issuing outdated paths for utimes, chown and chmod
#
. ./common/preamble
_begin_fstest auto quick send
tmp=`mktemp -d`
# Override the default cleanup function.
_cleanup()
{
rm -fr $tmp
}
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs btrfs
_require_scratch
_require_fssum
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
umask 0
mkdir -p $SCRATCH_MNT/a/b/c/d/e
mkdir $SCRATCH_MNT/a/b/c/f
echo 'ola ' > $SCRATCH_MNT/a/b/c/d/e/file.txt
chmod 0777 $SCRATCH_MNT/a/b/c/d/e
# Filesystem looks like:
#
# . (ino 256)
# |-- a/ (ino 257)
# |-- b/ (ino 258)
# |-- c/ (ino 259)
# |-- d/ (ino 260)
# | |-- e/ (ino 261)
# | |-- file.txt (ino 262)
# |
# |-- f/ (ino 263)
_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
echo 'mundo' >> $SCRATCH_MNT/a/b/c/d/e/file.txt
mv $SCRATCH_MNT/a/b/c/d/e/file.txt $SCRATCH_MNT/a/b/c/d/e/file2.txt
mv $SCRATCH_MNT/a/b/c/f $SCRATCH_MNT/a/b/f2
mv $SCRATCH_MNT/a/b/c/d/e $SCRATCH_MNT/a/b/f2/e2
mv $SCRATCH_MNT/a/b/c $SCRATCH_MNT/a/b/c2
mv $SCRATCH_MNT/a/b/c2/d $SCRATCH_MNT/a/b/c2/d2
chmod 0700 $SCRATCH_MNT/a/b/f2/e2
# Filesystem now looks like:
#
# . (ino 256)
# |-- a/ (ino 257)
# |-- b/ (ino 258)
# |-- c2/ (ino 259)
# | |-- d2/ (ino 260)
# |
# |-- f2/ (ino 263)
# |-- e2 (ino 261)
# |-- file2.txt (ino 263)
_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
run_check $FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1
run_check $FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \
$SCRATCH_MNT/mysnap2
_run_btrfs_util_prog send -f $tmp/1.snap $SCRATCH_MNT/mysnap1
_run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 -f $tmp/2.snap \
$SCRATCH_MNT/mysnap2
_check_scratch_fs
_scratch_unmount
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
_run_btrfs_util_prog receive -f $tmp/1.snap $SCRATCH_MNT
run_check $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1
_run_btrfs_util_prog receive -f $tmp/2.snap $SCRATCH_MNT
run_check $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2
status=0
exit
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