[2/8] overlay: work dir in overlay inherits no ACLs

Commit Message

Murphy Zhou Feb. 16, 2017, 9:13 a.m. UTC

They should be cleaned while mounting overlayfs.

CC: Miklos Szeredi <[e-mail]>
Signed-off-by: Xiong Zhou <[e-mail]>
---
 tests/overlay/023     | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/overlay/023.out |  8 +++++
 tests/overlay/group   |  1 +
 3 files changed, 90 insertions(+)
 create mode 100755 tests/overlay/023
 create mode 100644 tests/overlay/023.out

Patch

diff --git a/tests/overlay/023 b/tests/overlay/023
new file mode 100755
index 0000000..9f4ace5
--- /dev/null
+++ b/tests/overlay/023
@@ -0,0 +1,81 @@ 
+#! /bin/bash
+# FS QA Test 023
+#
+# The "work" directory in an overlyfs workdir should not inherit
+# ACL attrs from workdir.
+# Kernel commits below fix it.
+#   c11b9fdd6a61 ovl: remove posix_acl_default from workdir
+#   e1ff3dd1ae52 ovl: fix workdir creation
+#
+# This reproducer was originally written by
+#     Miklos Szeredi <[e-mail]>
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017 Red Hat Inc.  All Rights Reserved.
+#
+# 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.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/attr
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+# Modify as appropriate.
+_supported_fs overlay
+_supported_os Linux
+_require_acls
+_require_scratch
+
+# Remove all files from previous tests
+_scratch_mkfs
+
+# setting acls before mount
+wkdir=$SCRATCH_DEV/$OVERLAY_WORK_DIR
+mkdir -p $wkdir
+setfacl -d -m o::rwx $wkdir
+
+_scratch_mount
+
+# getting acls and doing a non-common filter,
+# since getfacl will remove leading / from absolute
+# path names.
+getfacl $wkdir/work 2>&1 | \
+	sed -e "s,${wkdir#/},wkdir,g" \
+	    -e "/Removing leading/ d"
+
+# success, all done
+status=0
+exit
diff --git a/tests/overlay/023.out b/tests/overlay/023.out
new file mode 100644
index 0000000..3bdaca4
--- /dev/null
+++ b/tests/overlay/023.out
@@ -0,0 +1,8 @@ 
+QA output created by 023
+# file: wkdir/work
+# owner: root
+# group: root
+user::---
+group::---
+other::---
+
diff --git a/tests/overlay/group b/tests/overlay/group
index 45768f5..09da1be 100644
--- a/tests/overlay/group
+++ b/tests/overlay/group
@@ -25,3 +25,4 @@ 
 020 auto quick copyup perms
 021 auto quick copyup
 022 auto quick
+023 auto quick attr