tests/generic/754

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2024 Oracle.  All Rights Reserved.
#
# FS QA Test No. 754
#
# Test that we can add xattrs to a symbolic link, remove all the xattrs, and
# that the symbolic link doesn't get corrupted.  This is a regression test for
# some incorrect checks in the xfs inode verifier.
#
. ./common/preamble
_begin_fstest auto

_require_scratch
_require_symlinks

if [ $FSTYP = "xfs" ]; then
	_fixed_by_git_commit kernel 38de567906d95 \
			"xfs: allow symlinks with short remote targets"
	_fixed_by_git_commit xfsprogs XXXXXXXXXXXXX \
			"xfs_repair: small remote symlinks are ok"
fi

_scratch_mkfs >> $seqres.full
_scratch_mount >> $seqres.full

SYMLINK_ADD="0123456789ABCDEF01234567890ABCDEF"

# test from 32 to MAXPATHLEN sized symlink. This should make sure that
# 256-1024 byte version 2 and 3 inodes are covered.
SYMLINK=""
for ((SIZE = 32; SIZE < 1024; SIZE += 32)); do
	SYMLINK_FILE="$SCRATCH_MNT/symlink.$SIZE"
	SYMLINK="${SYMLINK}${SYMLINK_ADD}"
	ln -s $SYMLINK $SYMLINK_FILE > /dev/null 2>&1

# add the extended attributes
	attr  -Rs 1234567890ab $SYMLINK_FILE < /dev/null > /dev/null 2>&1
	attr  -Rs 1234567890ac $SYMLINK_FILE < /dev/null > /dev/null 2>&1
	attr  -Rs 1234567890ad $SYMLINK_FILE < /dev/null > /dev/null 2>&1
# remove the extended attributes
	attr  -Rr 1234567890ab $SYMLINK_FILE > /dev/null 2>&1
	attr  -Rr 1234567890ac $SYMLINK_FILE > /dev/null 2>&1
	attr  -Rr 1234567890ad $SYMLINK_FILE > /dev/null 2>&1
done

_scratch_cycle_mount

# Now check the symlink target contents
SYMLINK=""
for ((SIZE = 32; SIZE < 1024; SIZE += 32)); do
	SYMLINK_FILE="$SCRATCH_MNT/symlink.$SIZE"
	SYMLINK="${SYMLINK}${SYMLINK_ADD}"

	target="$(readlink $SYMLINK_FILE)"
	test "$target" = "$SYMLINK" || echo "$SYMLINK_FILE: target is corrupt"
done

echo Silence is golden
status=0
exit