xfstests: generic/314, test sgid inheritance on subdirs

Tests if subdirectories created on the filesystem will properly inherit sgid bit
when this is set on the parent directory, once the process has the properly
permissions to create a subdirectory, this, should inherit parent's sgid bit if
this is set and irix_sgid_inherit sysctl is disabled.

V2: add missing source of "attr" file for _require_acls

V3: use _ls_l to filter out the selinux "."
    renumber to 314 to make the merge easier

V4: fix 314.out to the correct output

Thanks to Sandeen who have written this patch

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

tests/generic/314

@@ -0,0 +1,68 @@
+#! /bin/bash
+# FS QA Test No. 314
+#
+# Test SGID inheritance on subdirectories
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2013 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
+
+# real QA test starts here
+_supported_fs generic
+_require_acls
+_require_user
+_need_to_be_root
+
+rm -rf $TEST_DIR/$seq-dir
+
+# Make dir owned by qa user, and an unrelated group:
+mkdir $TEST_DIR/$seq-dir
+chown $qa_user:12345 $TEST_DIR/$seq-dir
+
+# Make parent dir sgid
+chmod 2775 $TEST_DIR/$seq-dir
+
+# Make subdirs before & after acl set
+su $qa_user -c "mkdir $TEST_DIR/$seq-dir/subdir"
+su $qa_user -c "setfacl -m u:$qa_user:rwx,d:u:$qa_user:rwx $TEST_DIR/$seq-dir"
+su $qa_user -c "mkdir $TEST_DIR/$seq-dir/subdir2"
+
+# Both subdirs should have inherited sgid
+_ls_l $TEST_DIR/$seq-dir/ | _filter_test_dir | awk '{print $1,$NF}'
+
+status=0
+exit

tests/generic/314.out

@@ -0,0 +1,4 @@
+QA output created by 314
+total 4
+drwxr-sr-x subdir
+drwxrwsr-x+ subdir2

tests/generic/group

@@ -116,3 +116,4 @@
 311 auto metadata log
 312 auto quick prealloc enospc
 313 auto quick
+314 auto quick acl