예제 #1
0
  @Test
  public void testTunWriteInvalidIP() throws Exception {
    boolean thrownexception = false;
    TunDevice tun = null;
    log.info("test tunnel write invalid IP");
    try {
      tun = openTun("test");
      tun.open();
      Assert.assertTrue(tun.getFd() > 0);
      log.info("device: {} fd: {}", tun.getDevice(), tun.getFd());

      int size = 1000;
      ByteBuffer ipPacket = utils.getBadIpPacket(ICMPPacket.PROTOCOL, size);
      tun.writeByteBuffer(ipPacket, size);
    } catch (libc.ErrnoException errno) {
      // invalid argument
      log.info("got exeception (OK) : {}", errno.getMessage());
      Assert.assertEquals(22, errno.getErrno());
      thrownexception = true;
    } finally {
      if (tun != null) {
        tun.close();
        Assert.assertEquals(0, tun.getFd());
        Assert.assertTrue(thrownexception);
      }
    }
  }
예제 #2
0
 @Test
 public void testTunWrite() throws Exception {
   boolean thrownexception = false;
   TunDevice tun = null;
   log.info("test tunnel write");
   try {
     tun = openTun("test");
     tun.open();
     Assert.assertTrue(tun.getFd() > 0);
     log.info("device: {} fd: {}", tun.getDevice(), tun.getFd());
     // we need to write some bytes to tun device
     ByteBuffer buf = ByteBuffer.allocateDirect(60);
     // create dummy ICMP packet,
     buf.clear();
     buf.put((byte) 0x45); // IPv4 + header size
     buf.put((byte) 0x00); // dscp
     buf.put((byte) 60); // size
     buf.putShort((byte) 0x00);
     buf.putShort((byte) 0x00);
     buf.put((byte) 0x40); // TTL
     buf.put((byte) 0x01); // protocol
     int x = tun.writeByteBuffer(buf, 60);
     Assert.assertEquals(60, x);
   } finally {
     if (tun != null) {
       tun.close();
       Assert.assertEquals(0, tun.getFd());
     }
   }
 }