341 lines
13 KiB
Java
341 lines
13 KiB
Java
/*
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* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 7152176
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* @summary More krb5 tests
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* @library ../../../../java/security/testlibrary/
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* @compile -XDignore.symbol.file ReplayCacheTestProc.java
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* @run main/othervm/timeout=100 ReplayCacheTestProc
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*/
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import java.io.*;
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import java.nio.BufferUnderflowException;
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import java.nio.channels.SeekableByteChannel;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.nio.file.StandardCopyOption;
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import java.nio.file.StandardOpenOption;
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import java.security.MessageDigest;
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import java.util.*;
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import sun.security.jgss.GSSUtil;
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import sun.security.krb5.internal.APReq;
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import sun.security.krb5.internal.rcache.AuthTime;
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// This test runs multiple acceptor Procs to mimin AP-REQ replays.
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public class ReplayCacheTestProc {
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private static Proc[] ps;
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private static Proc pc;
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private static List<Req> reqs = new ArrayList<>();
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private static String HOST = "localhost";
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// Where should the rcache be saved. It seems KRB5RCACHEDIR is not
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// recognized on Solaris. Maybe version too low? I see 1.6.
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private static String cwd =
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System.getProperty("os.name").startsWith("SunOS") ?
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"/var/krb5/rcache/" :
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System.getProperty("user.dir");
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private static long uid;
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public static void main0(String[] args) throws Exception {
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System.setProperty("java.security.krb5.conf", OneKDC.KRB5_CONF);
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if (args.length == 0) { // The controller
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int ns = 5; // number of servers
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int nu = 5; // number of users
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int nx = 50; // number of experiments
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int np = 5; // number of peers (services)
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int mode = 0; // native(1), random(0), java(-1)
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boolean random = true; // random experiments choreograph
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// Do not test interop with native GSS on some platforms
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String os = System.getProperty("os.name", "???");
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if (!os.startsWith("SunOS") && !os.startsWith("Linux")) {
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mode = -1;
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}
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uid = sun.misc.VM.geteuid();
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KDC kdc = KDC.create(OneKDC.REALM, HOST, 0, true);
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for (int i=0; i<nu; i++) {
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kdc.addPrincipal(user(i), OneKDC.PASS);
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}
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kdc.addPrincipalRandKey("krbtgt/" + OneKDC.REALM);
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for (int i=0; i<np; i++) {
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kdc.addPrincipalRandKey(peer(i));
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}
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kdc.writeKtab(OneKDC.KTAB);
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KDC.saveConfig(OneKDC.KRB5_CONF, kdc);
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if (mode != -1) {
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// A special native server to check basic sanity
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if (ns(-1).waitFor() != 0) {
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Proc.d("Native mode sanity check failed, revert to java");
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mode = -1;
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}
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}
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pc = Proc.create("ReplayCacheTestProc").debug("C")
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.args("client")
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.start();
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ps = new Proc[ns];
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Ex[] result = new Ex[nx];
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if (!random) {
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// 2 experiments, 2 server, 1 peer, 1 user
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nx = 2; ns = 2; np = 1; nu = 1;
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// Creates reqs from user# to peer#
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req(0, 0);
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// Creates server#
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ps[0] = ns(0);
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ps[1] = js(1);
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// Runs ex# using req# to server# with expected result
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result[0] = round(0, 0, 0, true);
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result[1] = round(1, 0, 1, false);
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} else {
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Random r = new Random();
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for (int i=0; i<ns; i++) {
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boolean useNative = (mode == 1) ? true
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: (mode == -1 ? false : r.nextBoolean());
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ps[i] = useNative?ns(i):js(i);
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}
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for (int i=0; i<nx; i++) {
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result[i] = new Ex();
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int old; // which req to send
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boolean expected;
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if (reqs.isEmpty() || r.nextBoolean()) {
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Proc.d("Console get new AP-REQ");
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old = req(r.nextInt(nu), r.nextInt(np));
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expected = true;
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} else {
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Proc.d("Console resue old");
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old = r.nextInt(reqs.size());
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expected = false;
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}
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int s = r.nextInt(ns);
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Proc.d("Console send to " + s);
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result[i] = round(i, old, s, expected);
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Proc.d("Console sees " + result[i].actual);
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}
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}
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pc.println("END");
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for (int i=0; i<ns; i++) {
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ps[i].println("END");
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}
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System.out.println("Result\n======");
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boolean finalOut = true;
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for (int i=0; i<nx; i++) {
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boolean out = result[i].expected==result[i].actual;
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finalOut &= out;
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System.out.printf("%3d: %s (%2d): u%d h%d %s %s %s %2d\n",
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i,
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result[i].expected?"----":" ",
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result[i].old,
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result[i].user, result[i].peer, result[i].server,
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result[i].actual?"Good":"Bad ",
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out?" ":"xxx",
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result[i].csize);
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}
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if (!finalOut) throw new Exception();
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} else if (args[0].equals("N-1")) {
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// Native mode sanity check
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Proc.d("Detect start");
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Context s = Context.fromUserKtab("*", OneKDC.KTAB, true);
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s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
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} else if (args[0].equals("client")) {
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while (true) {
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String title = Proc.textIn();
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Proc.d("Client see " + title);
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if (title.equals("END")) break;
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String[] cas = title.split(" ");
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Context c = Context.fromUserPass(cas[0], OneKDC.PASS, false);
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c.startAsClient(cas[1], GSSUtil.GSS_KRB5_MECH_OID);
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c.x().requestCredDeleg(true);
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byte[] token = c.take(new byte[0]);
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Proc.d("Client AP-REQ generated");
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Proc.binOut(token);
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}
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} else {
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Proc.d("Server start");
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Context s = Context.fromUserKtab("*", OneKDC.KTAB, true);
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Proc.d("Server login");
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while (true) {
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String title = Proc.textIn();
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Proc.d("Server " + args[0] + " sees " + title);
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if (title.equals("END")) break;
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s.startAsServer(GSSUtil.GSS_KRB5_MECH_OID);
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byte[] token = Proc.binIn();
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try {
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s.take(token);
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Proc.textOut("true");
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Proc.d(args[0] + " Good");
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} catch (Exception e) {
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Proc.textOut("false");
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Proc.d(args[0] + " Bad");
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}
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}
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}
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}
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public static void main(String[] args) throws Exception {
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try {
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main0(args);
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} catch (Exception e) {
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Proc.d(e);
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throw e;
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}
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}
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// returns the user name
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private static String user(int p) {
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return "USER" + p;
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}
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// returns the peer name
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private static String peer(int p) {
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return "host" + p + "/" + HOST;
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}
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// returns the dfl name for a host
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private static String dfl(int p) {
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return cwd + "host" + p + (uid == -1 ? "" : ("_"+uid));
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}
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// generates an ap-req and save into reqs, returns the index
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private static int req(int user, int peer) throws Exception {
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pc.println(user(user) + " " + peer(peer));
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Req req = new Req(user, peer, pc.readData());
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reqs.add(req);
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return reqs.size() - 1;
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}
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// carries out a round of experiment
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// i: ex#, old: which req, server: which server, expected: result?
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private static Ex round(int i, int old, int server, boolean expected)
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throws Exception {
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ps[server].println("TEST");
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ps[server].println(reqs.get(old).msg);
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String reply = ps[server].readData();
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Ex result = new Ex();
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result.i = i;
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result.expected = expected;
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result.server = ps[server].debug();
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result.actual = Boolean.valueOf(reply);
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result.user = reqs.get(old).user;
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result.peer = reqs.get(old).peer;
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result.old = old;
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result.csize = csize(result.peer);
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result.hash = hash(reqs.get(old).msg);
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if (new File(dfl(result.peer)).exists()) {
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Files.copy(Paths.get(dfl(result.peer)), Paths.get(
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String.format("%03d-USER%d-host%d-%s-%s",
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i, result.user, result.peer, result.server,
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result.actual)
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+ "-" + result.hash),
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StandardCopyOption.COPY_ATTRIBUTES);
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}
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return result;
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}
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// create a native server
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private static Proc ns(int i) throws Exception {
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return Proc.create("ReplayCacheTestProc")
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.args("N"+i)
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.env("KRB5_CONFIG", OneKDC.KRB5_CONF)
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.env("KRB5_KTNAME", OneKDC.KTAB)
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.env("KRB5RCACHEDIR", cwd)
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.prop("sun.security.jgss.native", "true")
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.prop("javax.security.auth.useSubjectCredsOnly", "false")
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.prop("sun.security.nativegss.debug", "true")
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.debug("N"+i)
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.start();
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}
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// creates a java server
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private static Proc js(int i) throws Exception {
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return Proc.create("ReplayCacheTestProc")
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.debug("S"+i)
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.args("S"+i)
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.prop("sun.security.krb5.rcache", "dfl")
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.prop("java.io.tmpdir", cwd)
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.start();
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}
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// generates hash of authenticator inside ap-req inside initsectoken
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private static String hash(String req) throws Exception {
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byte[] data = Base64.getDecoder().decode(req);
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data = Arrays.copyOfRange(data, 17, data.length);
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byte[] hash = MessageDigest.getInstance("MD5").digest(new APReq(data).authenticator.getBytes());
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char[] h = new char[hash.length * 2];
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char[] hexConst = "0123456789ABCDEF".toCharArray();
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for (int i=0; i<hash.length; i++) {
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h[2*i] = hexConst[(hash[i]&0xff)>>4];
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h[2*i+1] = hexConst[hash[i]&0xf];
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}
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return new String(h);
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}
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// return size of dfl file, excluding the null hash ones
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private static int csize(int p) throws Exception {
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try (SeekableByteChannel chan = Files.newByteChannel(
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Paths.get(dfl(p)), StandardOpenOption.READ)) {
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chan.position(6);
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int cc = 0;
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while (true) {
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try {
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if (AuthTime.readFrom(chan) != null) cc++;
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} catch (BufferUnderflowException e) {
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break;
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}
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}
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return cc;
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} catch (IOException ioe) {
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return 0;
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}
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}
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// models an experiement
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private static class Ex {
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int i; // #
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boolean expected; // expected result
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boolean actual; // actual output
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int old; // which ap-req to send
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String server; // which server to send to
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String hash; // the hash of req
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int user; // which initiator
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int peer; // which acceptor
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int csize; // size of rcache after test
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}
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// models a saved ap-req msg
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private static class Req {
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String msg; // based64-ed req
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int user; // which initiator
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int peer; // which accceptor
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Req(int user, int peer, String msg) {
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this.msg = msg;
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this.user= user;
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this.peer = peer;
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}
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}
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}
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