public Parser() throws Exception {
// Step 1: Instantiate Capturing Engine
m_pcap = new PacketCapture();
// Step 2: Check for devices
// m_device = m_pcap.findDevice();
String[] devices = m_pcap.lookupDevices();
int tunId = -1; // network interface id for coap comm
for (int i = 0; i < devices.length; i++) {
if (devices[i].contains("tun")) tunId = i;
}
// Step 3: Open Device for Capturing (requires root)
// m_pcap.open(m_device, true);
if (-1 != tunId) m_pcap.open(devices[tunId], true);
// Step 4: Add a BPF Filter (see tcpdump documentation)
m_pcap.setFilter(FILTER, true);
// Step 5: Register a Listener for Raw Packets
m_pcap.addRawPacketListener(new RawPacketHandler());
// Step 6: Capture Data (max. PACKET_COUNT packets)
m_pcap.capture(INFINITE);
// m_pcap.capture(PACKET_COUNT);
}
public Example5() throws Exception {
// Step 1: Instantiate Capturing Engine
m_pcap = new PacketCapture();
// Step 2: Check for devices
m_device = m_pcap.findDevice();
// Step 3: Open Device for Capturing (requires root)
m_pcap.open(m_device, true);
// Step 4: Add a BPF Filter (see tcpdump documentation)
m_pcap.setFilter(FILTER, true);
// Step 5: Register a Listener for jpcap Packets
m_pcap.addPacketListener(new PacketHandler());
// Step 6: Capture Data (max. PACKET_COUNT packets)
m_pcap.capture(PACKET_COUNT);
}
