generic/087,126: Test the permission to set file times

Check if setting the file access and modification times to the current time
and to a specific timestamp is allowed when expected.

In generic/126, remove a left-over temporary file.

Signed-off-by: Andreas Gruenbacher <andreas.gruenbacher@gmail.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

tests/generic/087

@@ -0,0 +1,77 @@
+#! /bin/bash
+# FSQA Test No. 087
+#
+# Check if setting the file access and modification times to the current time
+# (t) and to a specific timestamp (T) is allowed when expected.
+#
+# From utime(2): Changing timestamps is permitted when: either the process has
+# appropriate privileges, or the effective user ID equals the user ID of the
+# file, or [the process is trying to set the timestamps to the current time]
+# and the process has write permission for the file.
+#
+# Note that the last of these tests will always wrongly succeed over NFSv2.
+# For NFSv3+, that test will wrongly succeed until kernel commit
+# "Disable NFSv2 timestamp workaround for NFSv3+".
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015 Red Hat, Inc.
+# Author: Andreas Gruenbacher <agruenba@redhat.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 /
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux
+_require_test
+
+QA_FS_PERMS=$here/src/fs_perms
+
+cd $TEST_DIR
+cp $here/src/testx ./testx.file
+
+# The owner:
+$QA_FS_PERMS 600 99 99 99 99 t 1
+$QA_FS_PERMS 600 99 99 99 99 T 1
+
+# Other processes with and without write permission:
+$QA_FS_PERMS 600 99 99 100 99 t 0
+$QA_FS_PERMS 600 99 99 100 99 T 0
+$QA_FS_PERMS 660 99 99 100 99 t 1
+$QA_FS_PERMS 660 99 99 100 99 T 0
+
+rm -f ./testx.file
+
+status=0
+exit

tests/generic/087.out

@@ -0,0 +1,7 @@
+QA output created by 087
+t a 600 file owned by (99/99) as user/group(99/99)  PASS
+T a 600 file owned by (99/99) as user/group(99/99)  PASS
+t a 600 file owned by (99/99) as user/group(100/99)  PASS
+T a 600 file owned by (99/99) as user/group(100/99)  PASS
+t a 660 file owned by (99/99) as user/group(100/99)  PASS
+T a 660 file owned by (99/99) as user/group(100/99)  PASS

tests/generic/126

@@ -70,5 +70,7 @@ $QA_FS_PERMS 200 99 99 200 99 w 1
 $QA_FS_PERMS 040 99 99 99 500 r 1
 $QA_FS_PERMS 400 99 99 200 99 r 1
 
+rm -f ./testx.file
+
 status=0
 exit

tests/generic/group

@@ -89,6 +89,7 @@
 084 auto metadata quick
 085 auto freeze mount
 086 auto prealloc preallocrw quick
+087 perms auto quick
 088 perms auto quick
 089 metadata auto
 091 rw auto quick