def _sendArpReply(self, packet):
reply = EthernetFrame(dst = packet.src,
src = TapPacketCodec.ETHER_ADDR_ANY,
type = EthernetFrame.TYPE_ARP,
payload = ARPPacket(htype = ARPPacket.HTYPE_ETHERNET,
ptype = ARPPacket.PTYPE_IPV4,
hlen = ARPPacket.HLEN_ETHERNET,
plen = ARPPacket.PLEN_IPV4,
oper = ARPPacket.OPER_REPLY,
sha = TapPacketCodec.ETHER_ADDR_REMOTE,
spa = packet.payload.tpa,
tha = packet.payload.sha,
tpa = packet.payload.spa))
self._harness.char_dev.send(reply.encode())
def _sendNeighborAdvertisement(self, packet):
reply = EthernetFrame(
dst = packet.payload.payload.payload.src_lladdr,
src = TapPacketCodec.ETHER_ADDR_ANY,
type = EthernetFrame.TYPE_IPV6,
payload = IPv6Packet(
src = socket.inet_pton(self.addr.af, self.addr.remote),
dst = packet.payload.src,
proto = IPv6Packet.PROTO_ICMPV6,
payload = ICMPV6Packet(
type = ICMPV6Packet.TYPE_NEIGHBOR_ADVERTISMENT,
payload = ICMPV6NeighborAdvertisement(
solicited = 1,
override = 1,
target = socket.inet_pton(self.addr.af, self.addr.remote),
target_lladdr = TapPacketCodec.ETHER_ADDR_REMOTE))))
self._harness.char_dev.send(reply.encode())
def _decodePacket(self, packet):
return EthernetFrame(packet)
def _framePacket(self, payload):
return EthernetFrame(src = TapPacketCodec.ETHER_ADDR_REMOTE,
dst = TapPacketCodec.ETHER_ADDR_ANY,
type = TapPacketCodec.TYPE_MAP[self.addr.af],
payload = payload).encode()
def _framePacket(self, payload):
return EthernetFrame(src = TapPacketCodec.ETHER_ADDR_REMOTE,
dst = self._harness.interface.lladdr.addr,
type = TapPacketCodec.TYPE_MAP[self.addr.af],
payload = payload).encode()
