def sendPktExternal(self, dpid, pkt_eth):
self.log.debug("Entering sendPktExternal")
self.log.debug(" => Eth Pkt %s" % (pkt_eth))
vswitches = self.net[0xaabbcc].vswitch
vstag = vswitches[dpid].vstag
port = vswitches[dpid].uplink
dst_vswitch = None
dst_addr = removeNetIDEthAddr(pkt_eth.dst)
for i in vswitches.keys():
vswitch = vswitches[i]
for k in vswitch._vm.keys():
vm = vswitch._vm[k]
if dst_addr == vm.hw_addr:
dst_vswitch = vswitch
if dst_vswitch is None:
self.log.debug("External packet to a unknown destination: %s" %
pkt_eth.dst)
return
pkt_vlan = pkt.vlan(id=dst_vswitch.vstag,
eth_type=pkt.ethernet.HOTOM_TYPE)
pkt_hotom = pkt.hotom()
pkt_hotom.net_id = 0xaabbcc
pkt_hotom.dst = pkt_eth.dst
pkt_hotom.src = pkt_eth.src
pkt_eth.src = vswitches[dpid].hw_addr
pkt_eth.dst = dst_vswitch.hw_addr
pkt_hotom.payload = pkt_eth.payload
pkt_vlan.payload = pkt_hotom
pkt_eth.type = pkt.ethernet.VLAN_TYPE
pkt_eth.payload = pkt_vlan
self.log.debug("Sending port %d %s" % (port, pkt_eth))
self.log.debug(" => HotOM Pkt %s" % (pkt_hotom))
self.sendPktInternal(dpid, pkt_eth, port)
def outbound2Network(self,event):
remote_vstag = None
remote_vs_hw = None
vs_hw = self.avs[event.dpid].hw_addr
uplink = self.avs[event.dpid].uplink
packet = event.parsed
eth = packet.find('ethernet')
net_id = fromBytesToInt(getNetIDEthAddr(eth.src))
hw_dst = removeNetIDEthAddr(eth.dst)
(remote_vstag,remote_vs_hw) = self.net[net_id].getRemotevSwitchData(hw_dst)
if remote_vstag is None:
self.log.info("External packet to a unknown destination: %s" % eth.dst)
return
vlan = pkt.vlan(id=remote_vstag, eth_type=pkt.ethernet.HOTOM_TYPE)
hotom = pkt.hotom()
hotom.net_id = net_id
hotom.dst = eth.dst
hotom.src = eth.src
eth.src = vs_hw
eth.dst = remote_vs_hw
hotom.payload = eth.payload
vlan.payload = hotom
eth.payload = vlan
eth.type = pkt.ethernet.VLAN_TYPE
self.send(event.dpid,eth,uplink)
def sendPktExternal(self,dpid,pkt_eth):
self.log.debug("Entering sendPktExternal")
self.log.debug(" => Eth Pkt %s" % (pkt_eth))
vswitches = self.net[0xaabbcc].vswitch
vstag = vswitches[dpid].vstag
port = vswitches[dpid].uplink
dst_vswitch = None
dst_addr = removeNetIDEthAddr(pkt_eth.dst)
for i in vswitches.keys():
vswitch = vswitches[i]
for k in vswitch._vm.keys():
vm = vswitch._vm[k]
if dst_addr == vm.hw_addr:
dst_vswitch = vswitch
if dst_vswitch is None:
self.log.debug("External packet to a unknown destination: %s" % pkt_eth.dst)
return
pkt_vlan = pkt.vlan(id=dst_vswitch.vstag,eth_type=pkt.ethernet.HOTOM_TYPE)
pkt_hotom = pkt.hotom()
pkt_hotom.net_id = 0xaabbcc
pkt_hotom.dst = pkt_eth.dst
pkt_hotom.src = pkt_eth.src
pkt_eth.src = vswitches[dpid].hw_addr
pkt_eth.dst = dst_vswitch.hw_addr
pkt_hotom.payload = pkt_eth.payload
pkt_vlan.payload = pkt_hotom
pkt_eth.type = pkt.ethernet.VLAN_TYPE
pkt_eth.payload = pkt_vlan
self.log.debug("Sending port %d %s" % (port,pkt_eth))
self.log.debug(" => HotOM Pkt %s" % (pkt_hotom))
self.sendPktInternal(dpid,pkt_eth,port)
def outbound2Network(self, event):
remote_vstag = None
remote_vs_hw = None
vs_hw = self.avs[event.dpid].hw_addr
uplink = self.avs[event.dpid].uplink
packet = event.parsed
eth = packet.find('ethernet')
net_id = fromBytesToInt(getNetIDEthAddr(eth.src))
hw_dst = removeNetIDEthAddr(eth.dst)
(remote_vstag,
remote_vs_hw) = self.net[net_id].getRemotevSwitchData(hw_dst)
if remote_vstag is None:
self.log.info("External packet to a unknown destination: %s" %
eth.dst)
return
vlan = pkt.vlan(id=remote_vstag, eth_type=pkt.ethernet.HOTOM_TYPE)
hotom = pkt.hotom()
hotom.net_id = net_id
hotom.dst = eth.dst
hotom.src = eth.src
eth.src = vs_hw
eth.dst = remote_vs_hw
hotom.payload = eth.payload
vlan.payload = hotom
eth.payload = vlan
eth.type = pkt.ethernet.VLAN_TYPE
self.send(event.dpid, eth, uplink)
def push_header(self,packet,port):
pkt_eth = packet.find('ethernet')
pkt_hotom = pkt.hotom()
pkt_hotom.net_id = 0x0
pkt_hotom.dst = pkt_eth.dst
pkt_hotom.dst = pkt_eth.src
pkt_vlan = pkt.vlan(id=2,eth_type=pkt.ethernet.HOTOM_TYPE)
pkt_ip = packet.find('ipv4')
if pkt_ip is None:
self.log.debug("Packet not IPV4: %s" % packet)
return
pkt_hotom.payload = pkt_ip
pkt_vlan.payload = pkt_hotom
pkt_eth.payload = pkt_vlan
pkt_eth.type = pkt.ethernet.VLAN_TYPE
msg = of.ofp_packet_out(data=pkt_eth)
msg.actions.append(of.ofp_action_output(port = port))
return msg
def push_header(self, packet, port):
pkt_eth = packet.find('ethernet')
pkt_hotom = pkt.hotom()
pkt_hotom.net_id = 0x0
pkt_hotom.dst = pkt_eth.dst
pkt_hotom.dst = pkt_eth.src
pkt_vlan = pkt.vlan(id=2, eth_type=pkt.ethernet.HOTOM_TYPE)
pkt_ip = packet.find('ipv4')
if pkt_ip is None:
self.log.debug("Packet not IPV4: %s" % packet)
return
pkt_hotom.payload = pkt_ip
pkt_vlan.payload = pkt_hotom
pkt_eth.payload = pkt_vlan
pkt_eth.type = pkt.ethernet.VLAN_TYPE
msg = of.ofp_packet_out(data=pkt_eth)
msg.actions.append(of.ofp_action_output(port=port))
return msg
def outboundToRemoteVM(self,eth,net_id,dst_vstag):
dst_eth = getEthAddrFromVstag(dst_vstag)
# Create HotOM header from original frame
hotom = pkt.hotom()
hotom.net_id = net_id
hotom.dst = eth.dst
hotom.src = eth.src
hotom.type = pkt.hotom.IP_TYPE
hotom.payload = eth.payload
# Create VLAN header
vlan = pkt.vlan(id=dst_vstag, eth_type=pkt.ethernet.HOTOM_TYPE)
# Replace ethernet addresses and encapsulate
eth.src = self.hw_addr
eth.dst = dst_eth
eth.type = pkt.ethernet.VLAN_TYPE
vlan.payload = hotom
eth.payload = vlan
self.send(eth,self.uplink)
