package net.i2p.router.tunnel;
/*
* free (adj.): unencumbered; not under the control of others
* Written by jrandom in 2003 and released into the public domain
* with no warranty of any kind, either expressed or implied.
* It probably won't make your computer catch on fire, or eat
* your children, but it might. Use at your own risk.
*
*/
import junit.framework.TestCase;
import net.i2p.data.DataHelper;
import net.i2p.data.Hash;
import net.i2p.router.RouterContext;
/**
* Quick unit test for base functionality of outbound tunnel
* operation
*
*/
public class OutboundTest extends TestCase{
private RouterContext _context;
public void setUp() {
_context = new RouterContext(null);
}
public void testOutbound() {
int numHops = 8;
TunnelCreatorConfig config = prepareConfig(numHops);
byte orig[] = new byte[1024];
byte message[] = new byte[1024];
_context.random().nextBytes(orig); // might as well fill the IV
System.arraycopy(orig, 0, message, 0, message.length);
OutboundGatewayProcessor p = new OutboundGatewayProcessor(_context, config);
p.process(message, 0, message.length);
for (int i = 0; i < numHops; i++) {
HopProcessor hop = new HopProcessor(_context, config.getConfig(i));
Hash prev = config.getConfig(i).getReceiveFrom();
assertTrue(hop.process(message, 0, message.length, prev));
}
boolean eq = DataHelper.eq(orig, 16, message, 16, orig.length - 16);
}
private TunnelCreatorConfig prepareConfig(int numHops) {
Hash peers[] = new Hash[numHops];
byte tunnelIds[][] = new byte[numHops][4];
for (int i = 0; i < numHops; i++) {
peers[i] = new Hash();
peers[i].setData(new byte[Hash.HASH_LENGTH]);
_context.random().nextBytes(peers[i].getData());
_context.random().nextBytes(tunnelIds[i]);
}
TunnelCreatorConfig config = new TunnelCreatorConfig(_context, numHops, false);
for (int i = 0; i < numHops; i++) {
config.setPeer(i, peers[i]);
HopConfig cfg = config.getConfig(i);
cfg.setExpiration(_context.clock().now() + 60000);
cfg.setIVKey(_context.keyGenerator().generateSessionKey());
cfg.setLayerKey(_context.keyGenerator().generateSessionKey());
if (i > 0)
cfg.setReceiveFrom(peers[i-1]);
else
cfg.setReceiveFrom(null);
cfg.setReceiveTunnelId(tunnelIds[i]);
if (i < numHops - 1) {
cfg.setSendTo(peers[i+1]);
cfg.setSendTunnelId(tunnelIds[i+1]);
} else {
cfg.setSendTo(null);
cfg.setSendTunnelId(null);
}
}
return config;
}
}