pktt.py 文件源码

def _match(self, layer, uargs):
        """Default match function."""
        if not hasattr(self.pkt, layer):
            return False

        if layer == "nfs":
            # Use special matching function for NFS
            texpr = self.match_nfs(uargs)
        else:
            # Use general match
            obj = "self.pkt.%s." % layer.lower()
            lhs, opr, rhs = self._split_match(uargs)
            expr = self._process_match(obj, lhs, opr, rhs)
            texpr = eval(expr)
        self.dprint('PKT2', "    %d: match_%s(%s) -> %r" % (self.pkt.record.index, layer, uargs, texpr))
        return texpr