def handle_DpPacketOut(event):
fingerprint = (DPFingerprint.from_pkt(event.packet),
event.node.dpid, event.port.port_no)
# Monkey patch on a fingerprint for this event
event.fingerprint = fingerprint
self.fingerprint2dp_outs[fingerprint].append(event)
self.raiseEvent(event)
def handle_DpPacketOut(event):
fingerprint = (DPFingerprint.from_pkt(event.packet),
event.node.dpid, event.port.port_no)
# Monkey patch on a fingerprint for this event
event.fingerprint = fingerprint
self.fingerprint2dp_outs[fingerprint].append(event)
self.raiseEvent(event)
def control_message_filter(e, pkt_fingerprint):
of_pkt = e.get_packet()
# TODO(cs): also handle ofp_flow_mod.buffer_id, which applies the rule to a
# particular buffered packet.
if type(of_pkt) not in dp_ofp_packets:
return False
# TODO(cs): problem: controllers often truncate the packet in
# ofp_packet_out.data. ofp_packet_in's are fine though, since POX's
# software_switch always includes the entire dataplane packet in the
# packet_in. To really solve this issue we would need to replay the
# flow_mods to cloned topology, and verify that buffer_id's are chosen
# deterministically.
return DPFingerprint.from_pkt(ethernet(raw=of_pkt.data)) == pkt_fingerprint
def control_message_filter(e, pkt_fingerprint):
of_pkt = e.get_packet()
# TODO(cs): also handle ofp_flow_mod.buffer_id, which applies the rule to a
# particular buffered packet.
if type(of_pkt) not in dp_ofp_packets:
return False
# TODO(cs): problem: controllers often truncate the packet in
# ofp_packet_out.data. ofp_packet_in's are fine though, since POX's
# software_switch always includes the entire dataplane packet in the
# packet_in. To really solve this issue we would need to replay the
# flow_mods to cloned topology, and verify that buffer_id's are chosen
# deterministically.
return DPFingerprint.from_pkt(ethernet(raw=of_pkt.data)) == pkt_fingerprint
def main(args):
with open(args.input) as input_file:
trace = parse(input_file)
# TODO(cs): binary search instead of linear?
while len(trace) > 0 and trace[0].label_id < args.ti_id:
trace.pop(0)
ti_event = trace[0]
if type(ti_event) != replay_events.TrafficInjection:
raise ValueError("Event %s with is not a TrafficInjection" % str(ti_event))
pkt_fingerprint = DPFingerprint.from_pkt(ti_event.dp_event.packet)
for event in trace:
t = type(event)
if t in dp_class_to_filter and dp_class_to_filter[t](event, pkt_fingerprint):
for field in default_fields:
field_formatters[field](event)
def main(args):
with open(args.input) as input_file:
trace = parse(input_file)
# TODO(cs): binary search instead of linear?
while len(trace) > 0 and trace[0].label_id < args.ti_id:
trace.pop(0)
ti_event = trace[0]
if type(ti_event) != replay_events.TrafficInjection:
raise ValueError("Event %s with is not a TrafficInjection" %
str(ti_event))
pkt_fingerprint = DPFingerprint.from_pkt(ti_event.dp_event.packet)
for event in trace:
t = type(event)
if t in dp_class_to_filter and dp_class_to_filter[t](
event, pkt_fingerprint):
for field in default_fields:
field_formatters[field](event)
def ti_filter(e, pkt_fingerprint): return DPFingerprint.from_pkt(e.dp_event.packet) == pkt_fingerprint
def ti_filter(e, pkt_fingerprint):
return DPFingerprint.from_pkt(e.dp_event.packet) == pkt_fingerprint
