Method load

scapy/libs/extcap.py:185–213

(self)

        super(_ExtcapInterfaceProvider, self).__init__(*args, **kwargs)

    def load(self) -> Dict[str, NetworkInterface]:
        data: Dict[str, NetworkInterface] = {}
        try:
            interfaces = _extcap_call(
                self.cmdprog,
                ["--extcap-interfaces"],
                {"interface": ["value", "display"]},
            )["interface"]
        except OSError as ex:
            warning(
                "extcap %s failed to load: %s",
                self.name,
                str(ex).strip().split("\n")[-1]
            )
            return {}
        for netw_name, name in interfaces:
            _index = re.search(r".*(\d+)", name)
            if _index:
                index = int(_index.group(1)) + 100
            else:
                index = 100
            if_data = {
                "name": name,
                "network_name": netw_name,
                "description": name,
                "index": index,
            }
            data[netw_name] = _ExtcapNetworkInterface(self, if_data)
        return data

    def _l2listen(self, _: Any) -> Type[SuperSocket]:
        return functools.partial(_ExtcapSocket, cmdprog=self.cmdprog)  # type: ignore