On Thu, Nov 19, 2020 at 02:19:56PM +0000, Luis Henriques wrote: > For the moment cross quota realms renames has been disabled in CephFS > after a bug has been found while renaming files created and truncated. > This allowed clients to easily circumvent quotas. > > Link: https://tracker.ceph.com/issues/48203 > Signed-off-by: Luis Henriques <lhenriques@xxxxxxx> Thanks for the test! It'd be great if ceph folks could help review & test it as well, as I don't have a cephfs test env yet.. Some minor comments below. > --- > tests/ceph/004 | 94 ++++++++++++++++++++++++++++++++++++++++++++++ > tests/ceph/004.out | 2 + > tests/ceph/group | 1 + > 3 files changed, 97 insertions(+) > create mode 100755 tests/ceph/004 > create mode 100644 tests/ceph/004.out > > diff --git a/tests/ceph/004 b/tests/ceph/004 > new file mode 100755 > index 000000000000..4021666b138e > --- /dev/null > +++ b/tests/ceph/004 > @@ -0,0 +1,94 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# Copyright (c) 2020 SUSE Linux Products GmbH. All Rights Reserved. > +# > +# FS QA Test 004 > +# > +# Tests a bug fix found in cephfs quotas handling. Here's a simplified testcase > +# that *should* fail: > +# > +# mkdir files limit > +# truncate files/file -s 10G > +# setfattr limit -n ceph.quota.max_bytes -v 1000000 > +# mv files limit/ > +# > +# Because we're creating a new file and truncating it, we have Fx caps and thus > +# the truncate operation will be cached. This prevents the MDSs from updating > +# the quota realms and thus the client will allow the above rename(2) to happen. > +# > +# The bug resulted in dropping support for cross quota-realms renames, reverting > +# kernel commit dffdcd71458e ("ceph: allow rename operation under different > +# quota realms"). > +# > +# So, the above test will now fail with a -EXDEV or, in the future (when we have > +# a proper fix), with -EDQUOT. > +# > +# This bug was tracker here: > +# > +# https://tracker.ceph.com/issues/48203 > +# > +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 > +. ./common/attr > + > +# remove previous $seqres.full before test > +rm -f $seqres.full > + > +# real QA test starts here > + > +_supported_fs ceph > +_require_attrs > +_require_test Need '_require_test_program "rename"' as well. > + > +workdir=$TEST_DIR/test-$seq > + > +orig1=$workdir/orig1 > +orig2=$workdir/orig2 > +file1=$orig1/file > +file2=$orig2/file > +dest=$workdir/dest > + > +rm -rf $workdir > +mkdir $workdir > +mkdir $orig1 $orig2 $dest > + > +# set quota to 1m > +$SETFATTR_PROG -n ceph.quota.max_bytes -v 1000000 $dest > +# set quota to 20g > +$SETFATTR_PROG -n ceph.quota.max_bytes -v 20000000000 $orig2 > + > +# > +# The following 2 testcases shall fail with either -EXDEV or -EDQUOT > +# > + > +# from 'root' realm to $dest realm > +$XFS_IO_PROG -f -c "truncate 10G" $file1 > +$here/src/rename $orig1 $dest/new1 >> $seqres.full 2>&1 > +[ $? -ne 1 ] && _fatal "cross quota realms rename succeeded" Use _fail instead of _fatal in test, _fatal is usually used in common helpers, to report internal errors such as wrong usage of helpers. > + > +# from $orig2 realm to $dest realm > +$XFS_IO_PROG -f -c "truncate 10G" $file2 > +$here/src/rename $orig2 $dest/new2 >> $seqres.full 2>&1 > +[ $? -ne 1 ] && _fatal "cross quota realms rename succeeded" Same here. Thanks, Eryu > + > +echo "Silence is golden" > + > +# success, all done > +status=0 > +exit > diff --git a/tests/ceph/004.out b/tests/ceph/004.out > new file mode 100644 > index 000000000000..af8614ae45ac > --- /dev/null > +++ b/tests/ceph/004.out > @@ -0,0 +1,2 @@ > +QA output created by 004 > +Silence is golden > diff --git a/tests/ceph/group b/tests/ceph/group > index adbf61547766..47903d21966c 100644 > --- a/tests/ceph/group > +++ b/tests/ceph/group > @@ -1,3 +1,4 @@ > 001 auto quick copy > 002 auto quick copy > 003 auto quick copy > +004 auto quick quota
