| #! /bin/bash |
| # FS QA Test No. 053 |
| # |
| # Test encode/decode of non-samefs overlay file handles with renames |
| # |
| # This is a variant of overlay file handles with renames test for an |
| # overlayfs that is composed of multiple lower layers not on the same |
| # underlying fs. |
| # |
| # - Check decode/read of file handles after rename of parent |
| # - Check decode/read of file handles after rename of grandparent |
| # - Check decode/read of file handles after move to new parent |
| # - Check encode/decode/read of file handles in non-upper overlay |
| # |
| # This test requires and enables overlayfs NFS export support and merge |
| # dir rename support (redirect_dir). |
| # NFS export support depends on and requires overlayfs index feature. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (C) 2018 CTERA Networks. All Rights Reserved. |
| # Author: Amir Goldstein <amir73il@gmail.com> |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| # |
| |
| 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.* |
| # Cleanup overlay scratch mount that is holding base test mount |
| # to prevent _check_test_fs and _test_umount from failing before |
| # _check_scratch_fs _scratch_umount |
| $UMOUNT_PROG $SCRATCH_MNT 2>/dev/null |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| |
| _supported_fs overlay |
| _supported_os Linux |
| _require_test |
| _require_test_program "open_by_handle" |
| # Use non-default scratch underlying overlay dirs, we need to check |
| # them explicity after test. |
| _require_scratch_nocheck |
| # We need to require all features together, because nfs_export cannot |
| # be enabled when index is disabled |
| _require_scratch_overlay_features index nfs_export redirect_dir |
| |
| # Lower is on test partition |
| lower=$OVL_BASE_TEST_DIR/$OVL_LOWER-$seq |
| # Upper/work are on scratch partition |
| middle=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER |
| upper=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER |
| work=$OVL_BASE_SCRATCH_MNT/$OVL_WORK |
| |
| NUMFILES=1 |
| |
| # Create test dir and empty test files |
| create_test_files() |
| { |
| local dir=$1 |
| local opt=$2 |
| |
| mkdir -p $dir |
| $here/src/open_by_handle -cp $opt $dir $NUMFILES |
| } |
| |
| # Test encode/decode file handles on overlay mount |
| test_file_handles() |
| { |
| local dir=$1 |
| shift |
| |
| echo test_file_handles $dir $* | _filter_scratch | \ |
| sed -e "s,$tmp\.,,g" |
| $here/src/open_by_handle $* $dir $NUMFILES |
| } |
| |
| # Re-create lower/middle/upper/work dirs |
| create_dirs() |
| { |
| # Create lower dir on test partition |
| rm -rf $lower |
| mkdir $lower |
| |
| # Create middle/upper/work dirs on scratch partition |
| _scratch_mkfs |
| } |
| |
| # Mount an overlay on $SCRATCH_MNT with lower layer on test partition |
| # and middle and upper layer on scratch partition |
| mount_dirs() |
| { |
| _overlay_scratch_mount_dirs $middle:$lower $upper $work \ |
| -o "index=on,nfs_export=on,redirect_dir=on" |
| } |
| |
| # Unmount the overlay without unmounting base fs and check the |
| # underlying dirs |
| unmount_dirs() |
| { |
| $UMOUNT_PROG $SCRATCH_MNT |
| |
| _overlay_check_scratch_dirs $middle:$lower $upper $work \ |
| -o "index=on,nfs_export=on,redirect_dir=on" |
| } |
| |
| # Check non-stale file handles of lower/upper moved files |
| create_dirs |
| create_test_files $upper/uppertestdir -w |
| create_test_files $lower/lowertestdir -w |
| mkdir -p $lower/lowertestdir.lo $lower/lowertestdir.up $upper/uppertestdir.lo $upper/uppertestdir.up |
| mount_dirs |
| # Check encode/decode/read of lower/upper file handles after move to new upper testdir |
| test_file_handles $SCRATCH_MNT/uppertestdir -o $tmp.upper_file_handles |
| test_file_handles $SCRATCH_MNT/lowertestdir -o $tmp.lower_file_handles |
| mv $SCRATCH_MNT/uppertestdir/* $SCRATCH_MNT/uppertestdir.up/ |
| mv $SCRATCH_MNT/lowertestdir/* $SCRATCH_MNT/uppertestdir.lo/ |
| # Check open and read from stored file handles |
| test_file_handles $SCRATCH_MNT -r -i $tmp.upper_file_handles |
| test_file_handles $SCRATCH_MNT -r -i $tmp.lower_file_handles |
| # Check encode/decode/read of lower/upper file handles after move to new merge testdir |
| test_file_handles $SCRATCH_MNT/uppertestdir.up -o $tmp.upper_file_handles |
| test_file_handles $SCRATCH_MNT/uppertestdir.lo -o $tmp.lower_file_handles |
| mv $SCRATCH_MNT/uppertestdir.up/* $SCRATCH_MNT/lowertestdir.up/ |
| mv $SCRATCH_MNT/uppertestdir.lo/* $SCRATCH_MNT/lowertestdir.lo/ |
| # Check open and read from stored file handles |
| test_file_handles $SCRATCH_MNT -r -i $tmp.upper_file_handles |
| test_file_handles $SCRATCH_MNT -r -i $tmp.lower_file_handles |
| unmount_dirs |
| |
| # Check non-stale file handles of lower/upper renamed dirs |
| create_dirs |
| create_test_files $upper/uppertestdir -w |
| create_test_files $lower/lowertestdir -w |
| create_test_files $upper/uppertestdir/subdir -w |
| create_test_files $lower/lowertestdir/subdir -w |
| mount_dirs |
| # Check encode/decode/read of lower/upper file handles after rename of testdir |
| test_file_handles $SCRATCH_MNT/uppertestdir -p -o $tmp.upper_file_handles |
| test_file_handles $SCRATCH_MNT/lowertestdir -p -o $tmp.lower_file_handles |
| # Check encode/decode/read of lower/upper file handles after rename of testdir's parent |
| test_file_handles $SCRATCH_MNT/uppertestdir/subdir -p -o $tmp.upper_subdir_file_handles |
| test_file_handles $SCRATCH_MNT/lowertestdir/subdir -p -o $tmp.lower_subdir_file_handles |
| # Rename pure upper dir |
| mv $SCRATCH_MNT/uppertestdir $SCRATCH_MNT/uppertestdir.new/ |
| # Copy up lower dir, index and rename |
| mv $SCRATCH_MNT/lowertestdir $SCRATCH_MNT/lowertestdir.new/ |
| # Check open, read and readdir from stored file handles |
| # (testdir argument is the mount point and NOT the dir |
| # we are trying to open by stored file handle) |
| test_file_handles $SCRATCH_MNT -rp -i $tmp.upper_file_handles |
| test_file_handles $SCRATCH_MNT -rp -i $tmp.lower_file_handles |
| test_file_handles $SCRATCH_MNT -rp -i $tmp.upper_subdir_file_handles |
| test_file_handles $SCRATCH_MNT -rp -i $tmp.lower_subdir_file_handles |
| # Retry decoding lower subdir file handle when indexed testdir is in dcache |
| # (providing renamed testdir argument pins the indexed testdir to dcache) |
| test_file_handles $SCRATCH_MNT/lowertestdir.new -rp -i $tmp.lower_subdir_file_handles |
| unmount_dirs |
| |
| # Check encode/decode/read of lower file handles on lower layers only r/o overlay. |
| # For non-upper overlay mount, nfs_export requires disabling redirect_dir. |
| $MOUNT_PROG -t overlay $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT \ |
| -o ro,redirect_dir=nofollow,nfs_export=on,lowerdir=$middle:$lower |
| test_file_handles $SCRATCH_MNT/lowertestdir -rp |
| test_file_handles $SCRATCH_MNT/lowertestdir/subdir -rp |
| unmount_dirs |
| |
| # Check encode/decode/read of lower file handles on lower layers only r/o overlay |
| # with non-indexed redirects from top lower layer to bottom lower layer. |
| # Overlay lookup cannot follow the redirect from $upper/lowertestdir.new to |
| # $lower/lowertestdir. Instead, we mount an overlay subtree rooted at these |
| # directories. |
| $MOUNT_PROG -t overlay $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT \ |
| -o ro,redirect_dir=nofollow,nfs_export=on,lowerdir=$upper/lowertestdir.new:$lower/lowertestdir |
| test_file_handles $SCRATCH_MNT -r |
| test_file_handles $SCRATCH_MNT/subdir -rp |
| unmount_dirs |
| |
| status=0 |
| exit |