def forward_l2_packet(self, con, inport, packet, buf, bufid):
"""
Tenta aprender o destino MAC instituído à um fluxo e enviar apenas fora de suas portas de entrada.
Se não, usa inundação.
:param con: Fonte do pacote.
:param inport: Porta de entrada.
:param packet: Pacote recebido.
:param buf: Tamanho do Buffer.
:param bufid: ID do Buffer.
:return: Sem retorno.
"""
"""If we've learned the destination MAC set up a flow and
send only out of its inport. Else, flood.
"""
dstaddr = EthAddr(packet.dst)
#if not ord(dstaddr[0]) & 1 and # what did this do?
if self.st[con].has_key(dstaddr.toStr()): # raw?
prt = self.st[con][dstaddr.toStr()] # raw?
if prt[0] == inport:
log.warning('**warning** learned port = inport')
ofcommand.floodPacket(con, inport, packet, buf, bufid)
else:
# We know the outport, set up a flow
log.info('installing flow for ' + str(packet))
match = ofcommand.extractMatch(packet)
actions = [ofcommand.Output(prt[0])]
ofcommand.addFlowEntry(con, inport, match, actions, bufid)
# Separate bufid, make addFlowEntry() only ADD the entry
# send/wait for Barrier
# sendBufferedPacket(bufid)
else:
# haven't learned destination MAC. Flood
ofcommand.floodPacket(con, inport, packet, buf, bufid)
def forward_l2_packet(self, con, inport, packet, buf, bufid):
"""If we've learned the destination MAC set up a flow and
send only out of its inport. Else, flood.
"""
dstaddr = EthAddr(packet.dst)
#if not ord(dstaddr[0]) & 1 and # what did this do?
if self.st[con].has_key(dstaddr.toStr()): # raw?
prt = self.st[con][dstaddr.toStr()] # raw?
if prt[0] == inport:
log.warning('**warning** learned port = inport')
ofcommand.floodPacket(con, inport, packet, buf, bufid)
else:
# We know the outport, set up a flow
log.info('installing flow for ' + str(packet))
match = ofcommand.extractMatch(packet)
actions = [ofcommand.Output(prt[0])]
ofcommand.addFlowEntry(con, inport, match, actions, bufid)
# Separate bufid, make addFlowEntry() only ADD the entry
# send/wait for Barrier
# sendBufferedPacket(bufid)
else:
# haven't learned destination MAC. Flood
ofcommand.floodPacket(con, inport, packet, buf, bufid)
def forward_l2_packet(self, con, inport, packet, buf, bufid):
"""If we've learned the destination MAC set up a flow and
send only out of its inport. Else, flood.
"""
dstaddr = EthAddr(packet.dst)
#if not ord(dstaddr[0]) & 1 and # what did this do?
if self.st[con].has_key(dstaddr.toStr()): # raw?
prt = self.st[con][dstaddr.toStr()] # raw?
if prt[0] == inport:
log.warning('**warning** learned port = inport')
ofcommand.floodPacket(con, inport, packet, buf, bufid)
else:
# We know the outport, set up a flow
log.info('installing flow for ' + str(packet))
match = ofcommand.extractMatch(packet)
actions = [ofcommand.Output(prt[0])]
ofcommand.addFlowEntry(con, inport, match, actions, bufid)
# Separate bufid, make addFlowEntry() only ADD the entry
# send/wait for Barrier
# sendBufferedPacket(bufid)
else:
# haven't learned destination MAC. Flood
ofcommand.floodPacket(con, inport, packet, buf, bufid)