Add jdnssec-signrrset tool which will sign any single rrset with any key.
git-svn-id: https://svn.verisignlabs.com/jdnssec/tools/trunk@208 4cbd57fe-54e5-0310-bd9a-f30fe5ea5e6e
This commit is contained in:
David Blacka
parent
32c781f972
commit
beca0e4872
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@ -0,0 +1,12 @@
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#! /bin/sh
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thisdir=`dirname $0`
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basedir=`cd $thisdir/..; pwd`
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# set the classpath
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for i in $basedir/lib/*.jar $basedir/lib/*.zip $basedir/build/lib/*.jar; do
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CLASSPATH="$CLASSPATH":"$i"
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done
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export CLASSPATH
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exec java com.verisignlabs.dnssec.cl.SignRRset "$@"
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@ -0,0 +1,476 @@
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// $Id: SignZone.java 2235 2009-02-07 20:37:29Z davidb $
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//
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// Copyright (C) 2001-2003, 2009 VeriSign, Inc.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA
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package com.verisignlabs.dnssec.cl;
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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.Iterator;
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import java.util.List;
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import java.util.TimeZone;
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import java.util.logging.Handler;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.apache.commons.cli.AlreadySelectedException;
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import org.apache.commons.cli.CommandLine;
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import org.apache.commons.cli.CommandLineParser;
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import org.apache.commons.cli.HelpFormatter;
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import org.apache.commons.cli.OptionBuilder;
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import org.apache.commons.cli.Options;
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import org.apache.commons.cli.PosixParser;
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import org.apache.commons.cli.UnrecognizedOptionException;
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import org.xbill.DNS.DNSSEC;
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import org.xbill.DNS.Name;
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import org.xbill.DNS.RRset;
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import org.xbill.DNS.Record;
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import org.xbill.DNS.Type;
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import com.verisignlabs.dnssec.security.BINDKeyUtils;
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import com.verisignlabs.dnssec.security.DnsKeyPair;
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import com.verisignlabs.dnssec.security.DnsSecVerifier;
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import com.verisignlabs.dnssec.security.JCEDnsSecSigner;
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import com.verisignlabs.dnssec.security.SignUtils;
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import com.verisignlabs.dnssec.security.ZoneUtils;
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/**
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* This class forms the command line implementation of a DNSSEC RRset signer.
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* Instead of being able to sign an entire zone, it will just sign a given
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* RRset. Note that it will sign any RRset with any private key without
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* consideration of whether or not the RRset *should* be signed in the context
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* of a zone.
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*
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* @author David Blacka (original)
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* @author $Author: davidb $
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* @version $Revision: 2235 $
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*/
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public class SignRRset {
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private static Logger log;
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/**
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* This is an inner class used to hold all of the command line option state.
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*/
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private static class CLIState {
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private Options opts;
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private File keyDirectory = null;
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public String[] keyFiles = null;
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public Date start = null;
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public Date expire = null;
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public String inputfile = null;
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public String outputfile = null;
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public boolean verifySigs = false;
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public CLIState() {
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setupCLI();
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}
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/**
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* Set up the command line options.
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*
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* @return a set of command line options.
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*/
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private void setupCLI() {
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opts = new Options();
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// boolean options
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opts.addOption("h", "help", false, "Print this message.");
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opts.addOption("a", "verify", false, "verify generated signatures>");
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OptionBuilder.hasOptionalArg();
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OptionBuilder.withLongOpt("verbose");
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OptionBuilder.withArgName("level");
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OptionBuilder.withDescription("verbosity level.");
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// Argument options
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opts.addOption(OptionBuilder.create('v'));
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OptionBuilder.hasArg();
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OptionBuilder.withArgName("dir");
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OptionBuilder.withLongOpt("key-directory");
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OptionBuilder.withDescription("directory to find key files (default '.').");
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opts.addOption(OptionBuilder.create('D'));
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OptionBuilder.hasArg();
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OptionBuilder.withArgName("time/offset");
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OptionBuilder.withLongOpt("start-time");
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OptionBuilder.withDescription("signature starting time (default is now - 1 hour)");
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opts.addOption(OptionBuilder.create('s'));
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OptionBuilder.hasArg();
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OptionBuilder.withArgName("time/offset");
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OptionBuilder.withLongOpt("expire-time");
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OptionBuilder.withDescription("signature expiration time (default is start-time + 30 days).");
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opts.addOption(OptionBuilder.create('e'));
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OptionBuilder.hasArg();
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OptionBuilder.withArgName("outfile");
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OptionBuilder.withDescription("file the signed rrset is written to.");
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opts.addOption(OptionBuilder.create('f'));
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}
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public void parseCommandLine(String[] args)
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throws org.apache.commons.cli.ParseException, ParseException,
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IOException {
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CommandLineParser cli_parser = new PosixParser();
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CommandLine cli = cli_parser.parse(opts, args);
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String optstr = null;
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if (cli.hasOption('h')) usage();
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if (cli.hasOption('v')) {
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int value = parseInt(cli.getOptionValue('v'), 5);
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Logger rootLogger = Logger.getLogger("");
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switch (value) {
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case 0:
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rootLogger.setLevel(Level.OFF);
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break;
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case 4:
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default:
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rootLogger.setLevel(Level.INFO);
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break;
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case 5:
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rootLogger.setLevel(Level.FINE);
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break;
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case 6:
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rootLogger.setLevel(Level.ALL);
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break;
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}
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Handler[] handlers = rootLogger.getHandlers();
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for (int i = 0; i < handlers.length; i++)
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handlers[i].setLevel(rootLogger.getLevel());
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}
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if (cli.hasOption('a')) verifySigs = true;
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if ((optstr = cli.getOptionValue('D')) != null) {
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keyDirectory = new File(optstr);
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if (!keyDirectory.isDirectory()) {
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System.err.println("error: " + optstr
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+ " is not a directory");
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usage();
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}
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}
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if ((optstr = cli.getOptionValue('s')) != null) {
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start = convertDuration(null, optstr);
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} else {
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// default is now - 1 hour.
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start = new Date(System.currentTimeMillis() - (3600 * 1000));
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}
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if ((optstr = cli.getOptionValue('e')) != null) {
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expire = convertDuration(start, optstr);
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} else {
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expire = convertDuration(start, "+2592000"); // 30 days
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}
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outputfile = cli.getOptionValue('f');
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String[] files = cli.getArgs();
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if (files.length < 1) {
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System.err.println("error: missing zone file and/or key files");
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usage();
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}
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inputfile = files[0];
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if (files.length > 1) {
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keyFiles = new String[files.length - 1];
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System.arraycopy(files, 1, keyFiles, 0, files.length - 1);
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}
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}
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/** Print out the usage and help statements, then quit. */
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private void usage() {
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HelpFormatter f = new HelpFormatter();
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PrintWriter out = new PrintWriter(System.err);
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// print our own usage statement:
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out.println("usage: jdnssec-signrrset [..options..] "
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+ "rrset_file key_file [key_file ...] ");
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f.printHelp(out, 75, "signZone.sh", null, opts,
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HelpFormatter.DEFAULT_LEFT_PAD,
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HelpFormatter.DEFAULT_DESC_PAD,
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"\ntime/offset = YYYYMMDDHHmmss|+offset|\"now\"+offset\n");
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out.flush();
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System.exit(64);
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}
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}
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/**
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* This is just a convenience method for parsing integers from strings.
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*
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* @param s
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* the string to parse.
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* @param def
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* the default value, if the string doesn't parse.
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* @return the parsed integer, or the default.
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*/
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private static int parseInt(String s, int def) {
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try {
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int v = Integer.parseInt(s);
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return v;
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} catch (NumberFormatException e) {
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return def;
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}
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}
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/**
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* Verify the generated signatures.
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*
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* @param zonename
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* the origin name of the zone.
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* @param records
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* a list of {@link org.xbill.DNS.Record}s.
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* @param keypairs
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* a list of keypairs used the sign the zone.
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* @return true if all of the signatures validated.
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*/
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private static boolean verifySigs(Name zonename, List records, List keypairs) {
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boolean secure = true;
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DnsSecVerifier verifier = new DnsSecVerifier();
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for (Iterator i = keypairs.iterator(); i.hasNext();) {
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verifier.addTrustedKey((DnsKeyPair) i.next());
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}
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verifier.setVerifyAllSigs(true);
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List rrsets = SignUtils.assembleIntoRRsets(records);
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for (Iterator i = rrsets.iterator(); i.hasNext();) {
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RRset rrset = (RRset) i.next();
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// skip unsigned rrsets.
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if (!rrset.sigs().hasNext()) continue;
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int result = verifier.verify(rrset, null);
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if (result != DNSSEC.Secure) {
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log.fine("Signatures did not verify for RRset: (" + result
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+ "): " + rrset);
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secure = false;
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}
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}
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return secure;
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}
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/**
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* Load the key pairs from the key files.
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*
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* @param keyfiles
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* a string array containing the base names or paths of the keys
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* to be loaded.
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* @param start_index
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* the starting index of keyfiles string array to use. This
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* allows us to use the straight command line argument array.
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* @param inDirectory
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* the directory to look in (may be null).
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* @return a list of keypair objects.
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*/
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private static List<DnsKeyPair> getKeys(String[] keyfiles, int start_index,
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File inDirectory)
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throws IOException {
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if (keyfiles == null) return null;
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int len = keyfiles.length - start_index;
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if (len <= 0) return null;
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ArrayList<DnsKeyPair> keys = new ArrayList<DnsKeyPair>(len);
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for (int i = start_index; i < keyfiles.length; i++) {
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DnsKeyPair k = BINDKeyUtils.loadKeyPair(keyfiles[i], inDirectory);
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if (k != null) keys.add(k);
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}
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return keys;
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}
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/**
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* Calculate a date/time from a command line time/offset duration string.
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*
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* @param start
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* the start time to calculate offsets from.
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* @param duration
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* the time/offset string to parse.
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* @return the calculated time.
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*/
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private static Date convertDuration(Date start, String duration)
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throws ParseException {
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if (start == null) start = new Date();
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if (duration.startsWith("now")) {
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start = new Date();
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if (duration.indexOf("+") < 0) return start;
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duration = duration.substring(3);
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}
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if (duration.startsWith("+")) {
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long offset = (long) parseInt(duration.substring(1), 0) * 1000;
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return new Date(start.getTime() + offset);
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}
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SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyyMMddHHmmss");
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dateFormatter.setTimeZone(TimeZone.getTimeZone("GMT"));
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return dateFormatter.parse(duration);
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}
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public static void execute(CLIState state) throws Exception {
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// Read in the zone
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List records = ZoneUtils.readZoneFile(state.inputfile, null);
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if (records == null || records.size() == 0) {
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System.err.println("error: empty RRset file");
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state.usage();
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}
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// Construct the RRset. Complain if the records in the input file
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// consist of more than one RRset.
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RRset rrset = null;
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for (Iterator i = records.iterator(); i.hasNext();) {
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Record r = (Record) i.next();
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// skip RRSIGs
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if (r.getType() == Type.RRSIG || r.getType() == Type.SIG) {
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continue;
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}
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// Handle the first record.
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if (rrset == null) {
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rrset = new RRset();
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rrset.addRR(r);
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continue;
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}
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// Ensure that the remaining records all belong to the same rrset.
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if (rrset.getName().equals(r.getName())
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&& rrset.getType() == r.getType()
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&& rrset.getDClass() == r.getDClass()) {
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rrset.addRR(r);
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} else {
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System.err.println("Records do not all belong to the same RRset.");
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state.usage();
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}
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}
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if (rrset.size() == 0) {
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System.err.println("No records found in inputfile.");
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state.usage();
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}
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// Load the key pairs.
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if (state.keyFiles.length == 0) {
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System.err.println("error: at least one keyfile must be specified");
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state.usage();
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}
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List<DnsKeyPair> keypairs = getKeys(state.keyFiles, 0,
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state.keyDirectory);
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// Make sure that all the keypairs have the same name.
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// This will be used as the zone name, too.
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Name keysetName = null;
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for (DnsKeyPair pair : keypairs) {
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if (keysetName == null) {
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keysetName = pair.getDNSKEYName();
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continue;
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}
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if (!pair.getDNSKEYName().equals(keysetName)) {
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System.err.println("Keys do not all have the same name.");
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state.usage();
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}
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}
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// default the output file, if not set.
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if (state.outputfile == null) {
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state.outputfile = state.inputfile + ".signed";
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}
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JCEDnsSecSigner signer = new JCEDnsSecSigner();
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List sigs = signer.signRRset(rrset, keypairs, state.start,
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state.expire);
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for (Iterator i = sigs.iterator(); i.hasNext();) {
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rrset.addRR((Record) i.next());
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}
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// write out the signed RRset
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List signed_records = new ArrayList();
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for (Iterator i = rrset.rrs(); i.hasNext();) {
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signed_records.add(i.next());
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}
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for (Iterator i = rrset.sigs(); i.hasNext();) {
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signed_records.add(i.next());
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}
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// write out the signed zone
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// force multiline mode for now
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org.xbill.DNS.Options.set("multiline");
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ZoneUtils.writeZoneFile(signed_records, state.outputfile);
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if (state.verifySigs) {
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log.fine("verifying generated signatures");
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boolean res = verifySigs(keysetName, signed_records, keypairs);
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if (res) {
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System.out.println("Generated signatures verified");
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// log.info("Generated signatures verified");
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} else {
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System.out.println("Generated signatures did not verify.");
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// log.warn("Generated signatures did not verify.");
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}
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}
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}
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public static void main(String[] args) {
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CLIState state = new CLIState();
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try {
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state.parseCommandLine(args);
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} catch (UnrecognizedOptionException e) {
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System.err.println("error: unknown option encountered: "
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+ e.getMessage());
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state.usage();
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} catch (AlreadySelectedException e) {
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System.err.println("error: mutually exclusive options have "
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+ "been selected:\n " + e.getMessage());
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state.usage();
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} catch (Exception e) {
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System.err.println("error: unknown command line parsing exception:");
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e.printStackTrace();
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state.usage();
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}
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log = Logger.getLogger(SignRRset.class.toString());
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try {
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execute(state);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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