public void handleIPv4Packet(IPv4 ipv4, IPacketModuleContext ctx) {
if (ipv4.getNextProtocol() != NetworkConstants.IPPROTO_TCP) {
return;
}
TCP tcp = (TCP) ipv4.findHeader(TCP.class);
if (tcp == null) {
return;
}
if (foundAddresses.contains(ipv4.getSourceAddress())) {
return;
}
Signature s = handleTCP(ipv4, tcp, ctx);
if (s == null) return;
log(
ctx,
"match! ["
+ ipv4.getSourceAddress()
+ "] --> "
+ ipv4.getDestinationAddress()
+ " is "
+ s.getOSGenre()
+ " "
+ s.getOSVersion());
foundAddresses.add(ipv4.getSourceAddress());
INetworkEntityFactory factory = Activator.getInstance().getNetworkEntityFactory();
factory.setOperatingSystem(
ctx.getRealm(),
ctx.getSpaceId(),
ipv4.getSourceAddress(),
s.getOSGenre() + " " + s.getOSVersion());
}
