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#!/bin/sh
# Ensure that cp -a and cp --preserve=context work properly.
# In particular, test on a writable NFS partition.
# Copyright (C) 2007 Free Software Foundation, Inc.
# 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; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will 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 to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
if test "$VERBOSE" = yes; then
set -x
cp --version
fi
. $srcdir/../envvar-check
. $srcdir/../lang-default
. $srcdir/../selinux
PRIV_CHECK_ARG=require-non-root . $srcdir/../priv-check
pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
trap '(exit $?); exit $?' 1 2 13 15
framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1
echo > f || framework_failure=1
echo > g || framework_failure=1
if test $framework_failure = 1; then
echo "$0: failure in testing framework" 1>&2
(exit 1); exit 1
fi
fail=0
# /bin/cp from coreutils-6.7-3.fc7 would fail this test by letting cp
# succeed (giving no diagnostics), yet leaving the destination file empty.
cp -a f g 2>err || fail=1
test -s g || fail=1 # The destination file must not be empty.
test -s err && fail=1 # There must be no stderr output.
rm -f g err
echo > g
# =====================================================
# Here, we expect cp to fail, because it (currently?) cannot
# set the SELinux security context through NFS.
cp --preserve=context f g 2> out && fail=1
# Here, we *do* expect the destination to be empty.
test -s g && fail=1
# FIXME: currently, this test must be run in an NFS mounted
# directory, and that's not checked. Move this part into a separate
# test and make that a prerequisite.
# In addition, we can add a root-only test that takes one of two
# approaches: 1) create a loopback context=... mount and run the test there.
# 2) run in a confined domain (maybe creating/loading it) that lacks the
# required permissions to the file type).
# Currently, I get this diagnostic:
# cp: failed to set the security context of `g' to `system_u:object_r:nfs_t': \
# Operation not supported
# but don't want to depend on ENOTSUP or that specific context triple:
sed "s/ .g' to .*//" out > k
mv k out
cat <<\EOF > exp || fail=1
cp: failed to set the security context of
EOF
cmp out exp || fail=1
test $fail = 1 && diff out exp 2> /dev/null
(exit $fail); exit $fail
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