@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof PcapNetworkInterface)) {
return false;
}
PcapNetworkInterface other = (PcapNetworkInterface) obj;
return this.name.equals(other.getName()) && this.local == other.isLocal();
}
/**
* @return a list of PcapNetworkInterfaces.
* @throws PcapNativeException
*/
public static List<PcapNetworkInterface> findAllDevs() throws PcapNativeException {
PointerByReference alldevsPP = new PointerByReference();
PcapErrbuf errbuf = new PcapErrbuf();
int rc = NativeMappings.pcap_findalldevs(alldevsPP, errbuf);
if (rc != 0) {
StringBuilder sb = new StringBuilder(50);
sb.append("Return code: ").append(rc).append(", Message: ").append(errbuf);
throw new PcapNativeException(sb.toString(), rc);
}
if (errbuf.length() != 0) {
logger.warn("{}", errbuf);
}
Pointer alldevsp = alldevsPP.getValue();
if (alldevsp == null) {
logger.info("No NIF was found.");
return Collections.<PcapNetworkInterface>emptyList();
}
pcap_if pcapIf = new pcap_if(alldevsp);
List<PcapNetworkInterface> ifList = new ArrayList<PcapNetworkInterface>();
for (pcap_if pif = pcapIf; pif != null; pif = pif.next) {
ifList.add(PcapNetworkInterface.newInstance(pif, true));
}
NativeMappings.pcap_freealldevs(pcapIf.getPointer());
logger.info("{} NIF(s) found.", ifList.size());
return ifList;
}
/**
* @param name
* @return a PcapNetworkInterface.
* @throws PcapNativeException
*/
public static PcapNetworkInterface getDevByName(String name) throws PcapNativeException {
if (name == null) {
StringBuilder sb = new StringBuilder();
sb.append("name: ").append(name);
throw new NullPointerException(sb.toString());
}
List<PcapNetworkInterface> allDevs = findAllDevs();
for (PcapNetworkInterface pif : allDevs) {
if (pif.getName().equals(name)) {
return pif;
}
}
return null;
}
public static void main(String[] args) throws PcapNativeException, NotOpenException {
String filter = args.length != 0 ? args[0] : "";
System.out.println(COUNT_KEY + ": " + COUNT);
System.out.println(READ_TIMEOUT_KEY + ": " + READ_TIMEOUT);
System.out.println(SNAPLEN_KEY + ": " + SNAPLEN);
System.out.println("\n");
PcapNetworkInterface nif;
try {
nif = new NifSelector().selectNetworkInterface();
} catch (IOException e) {
e.printStackTrace();
return;
}
if (nif == null) {
return;
}
System.out.println(nif.getName() + "(" + nif.getDescription() + ")");
PcapHandle handle = nif.openLive(SNAPLEN, PromiscuousMode.PROMISCUOUS, READ_TIMEOUT);
handle.setFilter(filter, BpfCompileMode.OPTIMIZE);
int num = 0;
while (true) {
try {
Packet packet = handle.getNextPacketEx();
Timestamp ts = new Timestamp(handle.getTimestampInts() * 1000L);
ts.setNanos(handle.getTimestampMicros() * 1000);
System.out.println(ts);
System.out.println(packet);
num++;
if (num >= COUNT) {
break;
}
} catch (TimeoutException e) {
} catch (EOFException e) {
e.printStackTrace();
}
}
handle.close();
}
/**
* @param addr
* @return a PcapNetworkInterface.
* @throws PcapNativeException
*/
public static PcapNetworkInterface getDevByAddress(InetAddress addr) throws PcapNativeException {
if (addr == null) {
StringBuilder sb = new StringBuilder();
sb.append("addr: ").append(addr);
throw new NullPointerException(sb.toString());
}
List<PcapNetworkInterface> allDevs = findAllDevs();
for (PcapNetworkInterface pif : allDevs) {
for (PcapAddress paddr : pif.getAddresses()) {
if (paddr.getAddress().equals(addr)) {
return pif;
}
}
}
return null;
}
