mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Amir Goldstein
7d50029d58
This is a variant of overlay file handles test for an overlayfs that is nested over another lower overlayfs on the same fs. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
305 lines
11 KiB
Bash
Executable File
305 lines
11 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2019 CTERA Networks. All Rights Reserved.
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#
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# FS QA Test No. 068
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#
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# Test encode/decode of nested overlay file handles
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#
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# This is a variant of overlay file handles test for an overlayfs that is
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# nested over another lower overlayfs on the same fs.
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#
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# - Check encode/write/decode/read content of lower/upper file handles
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# - Check encode/decode/write/read content of lower/upper file handles
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# - Check decode/read of unlinked lower/upper files and directories
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# - Check decode/read of lower file handles after copy up, link and unlink
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# - Check decode/read of lower file handles after rename of parent and self
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#
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# This test does not cover connectable file handles of non-directories,
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# because name_to_handle_at() syscall does not support requesting connectable
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# file handles.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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# Unmount the nested overlay mount
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$UMOUNT_PROG $mnt2 2>/dev/null
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs overlay
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_supported_os Linux
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_require_scratch
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# _require_exportfs already requires open_by_handle, but let's not count on it
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_require_test_program "open_by_handle"
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# We need to require all features together, because nfs_export cannot
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# be enabled when index is disabled
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_require_scratch_overlay_features index nfs_export redirect_dir
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# Lower dir of nested overlay is the scratch overlay mount at SCRATCH_MNT
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upper2=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER.2
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work2=$OVL_BASE_SCRATCH_MNT/$OVL_WORK.2
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mnt2=$OVL_BASE_SCRATCH_MNT/$OVL_MNT.2
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lowerdir=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER/lowertestdir
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upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER/uppertestdir
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lowertestdir=$mnt2/lowertestdir
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uppertestdir=$mnt2/uppertestdir
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NUMFILES=1
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# Create test dir and empty test files
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create_test_files()
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{
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local dir=$1
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local opt=$2
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$here/src/open_by_handle -cp $opt $dir $NUMFILES
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}
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# Test encode/decode file handles on overlay mount
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test_file_handles()
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{
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local dir=$1
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shift
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echo test_file_handles $dir $* | _filter_scratch | _filter_ovl_dirs | \
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sed -e "s,$tmp\.,,g"
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$here/src/open_by_handle $* $dir $NUMFILES
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}
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# Re-create lower/upper/work dirs
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create_dirs()
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{
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# Create the underlying overlay dirs
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_scratch_mkfs
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# Create the nested overlay upper dirs
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mkdir -p $upper2 $work2 $mnt2
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}
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# Mount a nested overlay with $SCRATCH_MNT as lower layer
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mount_dirs()
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{
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# Mount the underlying overlay
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_scratch_mount -o "index=on,nfs_export=on,redirect_dir=on"
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# Mount the nested overlay
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_overlay_mount_dirs $SCRATCH_MNT $upper2 $work2 overlay2 $mnt2 \
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-o "index=on,nfs_export=on,redirect_dir=on" 2>/dev/null ||
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_notrun "cannot mount nested overlay with nfs_export=on option"
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_fs_options overlay2 | grep -q "nfs_export=on" || \
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_notrun "cannot enable nfs_export feature on nested overlay"
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}
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# Unmount the nested overlay mount and check underlying overlay layers
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unmount_dirs()
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{
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# unmount & check nested overlay
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$UMOUNT_PROG $mnt2
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_overlay_check_dirs $SCRATCH_MNT $upper2 $work2 \
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-o "index=on,nfs_export=on,redirect_dir=on"
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# unmount & check underlying overlay
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_scratch_unmount
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_check_scratch_fs
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}
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# Check non-stale file handles of lower/upper files and verify
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# that handle decoded before copy up is encoded to upper after
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# copy up. Verify reading data from file open by file handle
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# and verify access_at() with dirfd open by file handle.
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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mount_dirs
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# Check encode/decode of upper regular file handles
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test_file_handles $uppertestdir
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# Check encode/decode of upper dir file handle
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test_file_handles $uppertestdir -p
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# Check encode/write/decode/read/write of upper file handles
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test_file_handles $uppertestdir -wrap
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# Check encode/decode of lower regular file handles before copy up
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test_file_handles $lowertestdir
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# Check encode/decode of lower dir file handles before copy up
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test_file_handles $lowertestdir -p
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# Check encode/write/decode/read/write of lower file handles across copy up
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test_file_handles $lowertestdir -wrap
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unmount_dirs
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# Check copy up after encode/decode of lower/upper files
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# (copy up of disconnected dentry to index dir)
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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mount_dirs
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# Check encode/decode/write/read of upper regular file handles
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test_file_handles $uppertestdir -a
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test_file_handles $uppertestdir -r
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# Check encode/decode/write/read of lower regular file handles
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test_file_handles $lowertestdir -a
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test_file_handles $lowertestdir -r
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unmount_dirs
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# Check non-stale handles to unlinked but open lower/upper files
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create_dirs
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create_test_files $upperdir
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create_test_files $upperdir.rw
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create_test_files $lowerdir
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create_test_files $lowerdir.rw
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mount_dirs
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test_file_handles $uppertestdir -dk
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# Check encode/write/unlink/decode/read of upper regular file handles
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test_file_handles $uppertestdir.rw -rwdk
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test_file_handles $lowertestdir -dk
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# Check encode/write/unlink/decode/read of lower file handles across copy up
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test_file_handles $lowertestdir.rw -rwdk
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unmount_dirs
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# Check stale handles of unlinked lower/upper files (nlink = 1,0)
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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mount_dirs
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# Check decode of upper file handles after unlink/rmdir (nlink == 0)
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test_file_handles $uppertestdir -dp
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# Check decode of lower file handles after unlink/rmdir (nlink == 0)
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test_file_handles $lowertestdir -dp
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unmount_dirs
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# Check non-stale file handles of linked lower/upper files (nlink = 1,2,1)
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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mount_dirs
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# Check encode/decode of upper file handles (nlink == 1)
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test_file_handles $uppertestdir
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# Check decode/read of upper file handles after link (nlink == 2)
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test_file_handles $uppertestdir -wlr
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# Check decode/read of upper file handles after link + unlink (nlink == 1)
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test_file_handles $uppertestdir -ur
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# Check encode/decode of lower file handles before copy up (nlink == 1)
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test_file_handles $lowertestdir
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# Check decode/read of lower file handles after copy up + link (nlink == 2)
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test_file_handles $lowertestdir -wlr
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# Check decode/read of lower file handles after copy up + link + unlink (nlink == 1)
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test_file_handles $lowertestdir -ur
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unmount_dirs
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# Check non-stale file handles of linked lower/upper hardlinks (nlink = 2,1)
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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# Create lower/upper hardlinks
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test_file_handles $lowerdir -l >/dev/null
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test_file_handles $upperdir -l >/dev/null
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mount_dirs
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# Check encode/decode of upper hardlink file handles (nlink == 2)
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test_file_handles $uppertestdir
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# Check decode/read of upper hardlink file handles after unlink (nlink == 1)
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test_file_handles $uppertestdir -wur
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# Check encode/decode of lower hardlink file handles before copy up (nlink == 2)
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test_file_handles $lowertestdir
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# Check decode/read of lower hardlink file handles after copy up + unlink (nlink == 1)
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test_file_handles $lowertestdir -wur
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unmount_dirs
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# Check stale file handles of unlinked lower/upper hardlinks (nlink = 2,0)
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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# Create lower/upper hardlinks
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test_file_handles $lowerdir -l >/dev/null
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test_file_handles $upperdir -l >/dev/null
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mount_dirs
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# Check encode/decode of upper hardlink file handles (nlink == 2)
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test_file_handles $uppertestdir
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# Check decode of upper hardlink file handles after 2*unlink (nlink == 0)
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test_file_handles $uppertestdir -d
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# Check encode/decode of lower hardlink file handles before copy up (nlink == 2)
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test_file_handles $lowertestdir
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# Check decode of lower hardlink file handles after copy up + 2*unlink (nlink == 0)
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test_file_handles $lowertestdir -d
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unmount_dirs
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# Check non-stale file handles of lower/upper renamed files
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create_dirs
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create_test_files $upperdir
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create_test_files $lowerdir
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mount_dirs
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# Check decode/read of upper file handles after rename in same upper parent
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test_file_handles $uppertestdir -wmr
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# Check decode/read of lower file handles after copy up + rename in same merge parent
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test_file_handles $lowertestdir -wmr
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unmount_dirs
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# Check non-stale file handles of lower/upper moved files
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create_dirs
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create_test_files $upperdir -w
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create_test_files $lowerdir -w
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mkdir -p $lowerdir.lo $lowerdir.up $upperdir.lo $upperdir.up
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mount_dirs
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# Check encode/decode/read of lower/upper file handles after move to new upper testdir
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test_file_handles $uppertestdir -o $tmp.upper_file_handles
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test_file_handles $lowertestdir -o $tmp.lower_file_handles
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mv $uppertestdir/* $uppertestdir.up/
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mv $lowertestdir/* $uppertestdir.lo/
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# Check open and read from stored file handles
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test_file_handles $mnt2 -r -i $tmp.upper_file_handles
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test_file_handles $mnt2 -r -i $tmp.lower_file_handles
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# Check encode/decode/read of lower/upper file handles after move to new merge testdir
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test_file_handles $uppertestdir.up -o $tmp.upper_file_handles
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test_file_handles $uppertestdir.lo -o $tmp.lower_file_handles
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mv $uppertestdir.up/* $lowertestdir.up/
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mv $uppertestdir.lo/* $lowertestdir.lo/
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# Check open and read from stored file handles
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test_file_handles $mnt2 -r -i $tmp.upper_file_handles
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test_file_handles $mnt2 -r -i $tmp.lower_file_handles
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unmount_dirs
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# Check non-stale file handles of lower/upper renamed dirs
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create_dirs
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create_test_files $upperdir -w
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create_test_files $lowerdir -w
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create_test_files $upperdir/subdir -w
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create_test_files $lowerdir/subdir -w
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mount_dirs
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# Check encode/decode/read of lower/upper file handles after rename of testdir
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test_file_handles $uppertestdir -p -o $tmp.upper_file_handles
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test_file_handles $lowertestdir -p -o $tmp.lower_file_handles
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# Check encode/decode/read of lower/upper file handles after rename of testdir's parent
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test_file_handles $uppertestdir/subdir -p -o $tmp.upper_subdir_file_handles
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test_file_handles $lowertestdir/subdir -p -o $tmp.lower_subdir_file_handles
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# Rename pure upper dir
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mv $uppertestdir $uppertestdir.new/
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# Copy up lower dir, index and rename
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mv $lowertestdir $lowertestdir.new/
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# Check open, read and readdir from stored file handles
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# (testdir argument is the mount point and NOT the dir
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# we are trying to open by stored file handle)
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test_file_handles $mnt2 -rp -i $tmp.upper_file_handles
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test_file_handles $mnt2 -rp -i $tmp.lower_file_handles
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test_file_handles $mnt2 -rp -i $tmp.upper_subdir_file_handles
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test_file_handles $mnt2 -rp -i $tmp.lower_subdir_file_handles
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# Retry decoding lower subdir file handle when indexed testdir is in dcache
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# (providing renamed testdir argument pins the indexed testdir to dcache)
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test_file_handles $lowertestdir.new -rp -i $tmp.lower_subdir_file_handles
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unmount_dirs
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status=0
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exit
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