def __init__(self, ryuapp):
super(PacketLib, self).__init__()
self.gateway = GatewayState(self.db.gateway_get_all())
self.packet_arp = PacketARP(self, ryuapp)
self.packet_ipv4 = PacketIPv4(self, ryuapp)
self.packet_group = PacketGroup(self, ryuapp)
self.flows = {}
def __init__(self, ryuapp):
super(PacketLib, self).__init__()
self.gateway = GatewayState(self.db.gateway_get_all())
self.packet_arp = PacketARP(self, ryuapp)
self.packet_ipv4 = PacketIPv4(self, ryuapp)
self.packet_group = PacketGroup(self, ryuapp)
self.flows = {}
class PacketLib(db_base.Base):
def __init__(self, ryuapp):
super(PacketLib, self).__init__()
self.gateway = GatewayState(self.db.gateway_get_all())
self.packet_arp = PacketARP(self, ryuapp)
self.packet_ipv4 = PacketIPv4(self, ryuapp)
self.packet_group = PacketGroup(self, ryuapp)
self.flows = {}
def gateway_get(self, dpid):
normal_dpid = dpid_lib.dpid_to_str(dpid)
gateway = self.gateway.get(normal_dpid)
if not gateway:
gateway = self.db.gateway_get_by_datapath(normal_dpid)
if gateway:
self.gateway.add(gateway)
return gateway
def packet_in_handler(self, ev):
"""Check a packet-in message.
Build and output a packet-out.
"""
msg = ev.msg
datapath = msg.datapath
port = msg.match['in_port']
gateway = self.gateway_get(datapath.id)
if gateway is None or gateway.idc_id != CONF.idc_id:
return
pkt = packet.Packet(msg.data)
pkt_ethernet = pkt.get_protocol(ethernet.ethernet)
if not pkt_ethernet:
LOG.info(_LI("drop non-ethernet packet"))
return
pkt_arp = pkt.get_protocol(arp.arp)
pkt_ipv4 = pkt.get_protocol(ipv4.ipv4)
if pkt_arp:
self.packet_arp.run(msg, pkt_ethernet, pkt_arp, gateway)
elif pkt_ipv4:
pkt_tp = pkt.get_protocol(tcp.tcp) or \
pkt.get_protocol(udp.udp) or \
pkt.get_protocol(icmp.icmp)
LOG.debug("packet-in msg %s %s %s from %s", datapath.id, pkt_ipv4,
pkt_tp, port)
if pkt_tp and port:
self.packet_ipv4.run(msg, pkt_ethernet, pkt_ipv4, pkt_tp,
gateway)
else:
LOG.debug(_LI("drop non-arp and non-ip packet"))
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
actions = [
parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
ofproto.OFPCML_NO_BUFFER)
]
self.packet_group.add_flow(datapath, actions=actions)
#self.init_flow(datapath)
def init_flow(self, dp):
gateway = self.gateway_get(dp.id)
if gateway is not None and gateway.idc_id == CONF.idc_id:
self.packet_group.init_flow(dp, gateway)
def group_delete(self, sid, did):
src = self.db.server_get(sid)
dst = self.db.server_get(did)
src_gateway = self.gateway[src.host]
dst_gateway = self.gateway[dst.host]
if any((not src, not dst, not src_gateway, not dst_gateway)):
LOG.warn("Instance could be not found.")
else:
self.packet_group.run(src, src_gateway, dst, dst_gateway)
class PacketLib(db_base.Base):
def __init__(self, ryuapp):
super(PacketLib, self).__init__()
self.gateway = GatewayState(self.db.gateway_get_all())
self.packet_arp = PacketARP(self, ryuapp)
self.packet_ipv4 = PacketIPv4(self, ryuapp)
self.packet_group = PacketGroup(self, ryuapp)
self.flows = {}
def gateway_get(self, dpid):
normal_dpid = dpid_lib.dpid_to_str(dpid)
gateway = self.gateway.get(normal_dpid)
if not gateway:
gateway = self.db.gateway_get_by_datapath(normal_dpid)
if gateway:
self.gateway.add(gateway)
return gateway
def packet_in_handler(self, ev):
"""Check a packet-in message.
Build and output a packet-out.
"""
msg = ev.msg
datapath = msg.datapath
port = msg.match['in_port']
gateway = self.gateway_get(datapath.id)
if gateway is None or gateway.idc_id != CONF.idc_id:
return
pkt = packet.Packet(msg.data)
pkt_ethernet = pkt.get_protocol(ethernet.ethernet)
if not pkt_ethernet:
LOG.info(_LI("drop non-ethernet packet"))
return
pkt_arp = pkt.get_protocol(arp.arp)
pkt_ipv4 = pkt.get_protocol(ipv4.ipv4)
if pkt_arp:
self.packet_arp.run(msg, pkt_ethernet, pkt_arp, gateway)
elif pkt_ipv4:
pkt_tp = pkt.get_protocol(tcp.tcp) or \
pkt.get_protocol(udp.udp) or \
pkt.get_protocol(icmp.icmp)
LOG.debug("packet-in msg %s %s %s from %s",
datapath.id, pkt_ipv4, pkt_tp, port)
if pkt_tp and port:
self.packet_ipv4.run(msg, pkt_ethernet, pkt_ipv4, pkt_tp, gateway)
else:
LOG.debug(_LI("drop non-arp and non-ip packet"))
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
ofproto.OFPCML_NO_BUFFER)]
self.packet_group.add_flow(datapath, actions=actions)
#self.init_flow(datapath)
def init_flow(self, dp):
gateway = self.gateway_get(dp.id)
if gateway is not None and gateway.idc_id == CONF.idc_id:
self.packet_group.init_flow(dp, gateway)
def group_delete(self, sid, did):
src = self.db.server_get(sid)
dst = self.db.server_get(did)
src_gateway = self.gateway[src.host]
dst_gateway = self.gateway[dst.host]
if any((not src, not dst, not src_gateway, not dst_gateway)):
LOG.warn("Instance could be not found.")
else:
self.packet_group.run(src, src_gateway, dst, dst_gateway)