mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
a860a167d8
fstests only supports Linux, so get rid of this unnecessary predicate. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
92 lines
2.7 KiB
Bash
Executable File
92 lines
2.7 KiB
Bash
Executable File
#! /bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (C) 2020 CTERA Networks. All Rights Reserved.
|
|
#
|
|
# FS QA Test No. 074
|
|
#
|
|
# Test two overlayfs file handle bugs:
|
|
# 1. Failure to query file handle size
|
|
# Fixed by kernel commit 144da23beab8:
|
|
# ovl: return required buffer size for file handles
|
|
#
|
|
# 2. Kernel OOPS on open by hand crafted malformed file handle
|
|
# Fixed by kernel commit 9aafc1b01873:
|
|
# ovl: potential crash in ovl_fid_to_fh()
|
|
#
|
|
seq=`basename $0`
|
|
seqres=$RESULT_DIR/$seq
|
|
echo "QA output created by $seq"
|
|
|
|
here=`pwd`
|
|
tmp=/tmp/$$
|
|
status=1 # failure is the default!
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
_cleanup()
|
|
{
|
|
cd /
|
|
rm -f $tmp.*
|
|
}
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common/rc
|
|
. ./common/filter
|
|
|
|
# real QA test starts here
|
|
|
|
_supported_fs overlay
|
|
_require_scratch
|
|
_require_test_program "open_by_handle"
|
|
# We need to require all features together, because nfs_export cannot
|
|
# be enabled when index is disabled
|
|
_require_scratch_overlay_features index nfs_export
|
|
|
|
rm -f $seqres.full
|
|
|
|
_scratch_mkfs
|
|
_scratch_mount -o "index=on,nfs_export=on"
|
|
|
|
testdir=$SCRATCH_MNT/testdir
|
|
|
|
# Create directory with test file
|
|
$here/src/open_by_handle -cp $testdir
|
|
|
|
# Test query file handle size on dir and file
|
|
$here/src/open_by_handle -pz $testdir
|
|
|
|
# Export file handle into tmp file
|
|
$here/src/open_by_handle -o $tmp.file_handle $testdir
|
|
|
|
# Verify open by exported file handle
|
|
$here/src/open_by_handle -i $tmp.file_handle $testdir
|
|
|
|
# Mangle the exported file handle:
|
|
# handle_bytes = 1
|
|
# handle_type = OVL_FILEID_V0 (0xfb)
|
|
# File handle is encoded in host order
|
|
# The command below crafts this header for little endian.
|
|
# On different big endian architectures the file handle will still
|
|
# be malformed just not with the specific values to trigger the bug
|
|
cp $tmp.file_handle $tmp.file_handle_v0
|
|
$XFS_IO_PROG -c "pwrite -S 0 0 8" -c "pwrite -S 1 0 1" -c "pwrite -S 0xfb 4 1" \
|
|
$tmp.file_handle_v0 >> $seqres.full
|
|
|
|
# Craft malformed v1 file handle:
|
|
# handle_bytes = 1
|
|
# handle_type = OVL_FILEID_V1 (0xf8)
|
|
cp $tmp.file_handle $tmp.file_handle_v1
|
|
$XFS_IO_PROG -c "pwrite -S 0 0 8" -c "pwrite -S 1 0 1" -c "pwrite -S 0xf8 4 1" \
|
|
$tmp.file_handle_v1 >> $seqres.full
|
|
|
|
# Verify failure to open by mangled file handles
|
|
# This will trigger NULL pointer dereference on affected kernels
|
|
$here/src/open_by_handle -i $tmp.file_handle_v0 $testdir >> $seqres.full 2>&1 && \
|
|
_fail "open by mangaled file handle (v0) is expected to fail"
|
|
# This may trigger out of bound access warning on affected kernels
|
|
$here/src/open_by_handle -i $tmp.file_handle_v1 $testdir >> $seqres.full 2>&1 && \
|
|
_fail "open by mangaled file handle (v1) is expected to fail"
|
|
|
|
echo "Silence is golden"
|
|
status=0
|
|
exit
|