mrtlib.py 文件源码

def serialize(self):
        if netaddr.valid_ipv6(self.ip_addr):
            # Sets Peer IP Address family bit to IPv6
            self.type |= self.IP_ADDR_FAMILY_BIT
        ip_addr = ip.text_to_bin(self.ip_addr)

        if self.type & self.AS_NUMBER_SIZE_BIT or self.as_num > 0xffff:
            # Four octet AS number
            self.type |= self.AS_NUMBER_SIZE_BIT
            as_num = struct.pack('!I', self.as_num)
        else:
            # Two octet AS number
            as_num = struct.pack('!H', self.as_num)

        buf = struct.pack(self._HEADER_FMT,
                          self.type,
                          addrconv.ipv4.text_to_bin(self.bgp_id))

        return buf + ip_addr + as_num