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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.content.pm;
import android.content.pm.PackageManagerTests;
import android.content.pm.SELinuxMMAC;
import android.content.res.Resources;
import android.content.res.Resources.NotFoundException;
import android.net.Uri;
import android.os.FileUtils;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.DisplayMetrics;
import android.util.Log;
import com.android.frameworks.coretests.R;
import java.io.File;
import java.io.FileReader;
import java.io.InputStream;
public class SELinuxMMACTests extends AndroidTestCase {
private static final String TAG = "SELinuxMMACTests";
private static File MAC_INSTALL_TMP;
private static File APK_INSTALL_TMP;
private static final String MAC_INSTALL_TMP_NAME = "mac_install_policy";
private static final String APK_INSTALL_TMP_NAME = "install.apk";
@Override
protected void setUp() throws Exception {
super.setUp();
// Need a tmp file to hold the various mmac install files.
File filesDir = mContext.getFilesDir();
MAC_INSTALL_TMP = new File(filesDir, MAC_INSTALL_TMP_NAME);
assertNotNull(MAC_INSTALL_TMP);
// Need a tmp file to hold the apk
APK_INSTALL_TMP = new File(filesDir, APK_INSTALL_TMP_NAME);
assertNotNull(APK_INSTALL_TMP);
}
@Override
protected void tearDown() throws Exception {
super.tearDown();
// Just in case still around
MAC_INSTALL_TMP.delete();
APK_INSTALL_TMP.delete();
}
void failStr(String errMsg) {
Log.w(TAG, "errMsg="+errMsg);
fail(errMsg);
}
void failStr(Exception e) {
failStr(e.getMessage());
}
private PackageParser.Package parsePackage(Uri packageURI) {
final String archiveFilePath = packageURI.getPath();
PackageParser packageParser = new PackageParser(archiveFilePath);
File sourceFile = new File(archiveFilePath);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
PackageParser.Package pkg = packageParser.parsePackage(sourceFile,
archiveFilePath,
metrics, 0);
assertNotNull(pkg);
assertTrue(packageParser.collectCertificates(pkg,0));
packageParser = null;
return pkg;
}
Uri getResourceURI(int fileResId, File outFile) {
Resources res = mContext.getResources();
InputStream is = null;
try {
is = res.openRawResource(fileResId);
} catch (NotFoundException e) {
failStr("Failed to load resource with id: " + fileResId);
}
assertNotNull(is);
FileUtils.setPermissions(outFile.getPath(),
FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IRWXO,
-1, -1);
assertTrue(FileUtils.copyToFile(is, outFile));
FileUtils.setPermissions(outFile.getPath(),
FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IRWXO,
-1, -1);
return Uri.fromFile(outFile);
}
/**
* Takes the policy xml file as a resource, the apk as a resource,
* and the expected seinfo string.
* We mock a package install here by calling parsePackage.
*/
void checkSeinfoWithPolicy(int policyRes, int apkRes,
String expectedSeinfo) {
// grab policy file
Uri policyURI = getResourceURI(policyRes, MAC_INSTALL_TMP);
assertNotNull(policyURI);
// parse the policy file
boolean ret = SELinuxMMAC.readInstallPolicy(new File(policyURI.getPath()));
assertTrue(ret);
// grab the apk
Uri apkURI = getResourceURI(apkRes, APK_INSTALL_TMP);
assertNotNull(apkURI);
// "install" the apk
PackageParser.Package pkg = parsePackage(apkURI);
assertNotNull(pkg);
assertNotNull(pkg.packageName);
// check for correct seinfo label
SELinuxMMAC.assignSeinfoValue(pkg);
String seinfo = pkg.applicationInfo.seinfo;
if (seinfo == null)
seinfo = "null";
assertEquals(expectedSeinfo, seinfo);
// delete policy and apk
MAC_INSTALL_TMP.delete();
APK_INSTALL_TMP.delete();
}
/*
* Requested policy file doesn't exist.
*/
@LargeTest
public void testPOLICY_BADPATH() {
boolean ret = SELinuxMMAC.readInstallPolicy(new File("/d/o/e/s/n/t/e/x/i/s/t"));
assertFalse(ret);
}
/*
* Requested policy file is null object.
*/
@LargeTest
public void testPOLICY_NULL() {
boolean ret = SELinuxMMAC.readInstallPolicy(null);
assertFalse(ret);
}
/*
* Parse an apk that should be labeled with signature stanza.
*/
@LargeTest
public void testSIGNATURE_LABEL() {
checkSeinfoWithPolicy(R.raw.mac_permissions_signature, R.raw.signed_platform,
"platform");
}
/*
* Parse an apk that should be labeled with default stanza.
*/
@LargeTest
public void testDEFAULT_LABEL() {
checkSeinfoWithPolicy(R.raw.mac_permissions_default, R.raw.signed_platform,
"default");
}
/*
* Parse an apk that should be labeled with package stanza.
*/
@LargeTest
public void testPACKAGENAME_LABEL() {
checkSeinfoWithPolicy(R.raw.mac_permissions_package_name, R.raw.signed_platform,
"per-package");
}
/*
* Parse an apk that should not be labeled. No matching entry in policy.
*/
@LargeTest
public void testNO_MATCHING_POLICY() {
checkSeinfoWithPolicy(R.raw.mac_permissions_no_match, R.raw.signed_platform,
"null");
}
}
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