def status(self):
raw = self.getter()
r = OrderedDict([('raw', repr(raw))])
if raw:
frame = Frame(raw)
r['Frame'] = OrderedDict([
('Dst MAC', '{:02x}'.format(mac_from_bytes(frame.dst))),
('Src MAC', '{:02x}'.format(mac_from_bytes(frame.src))),
('EtherType', Frame.EtherType[frame.ethertype]),
])
if frame.ethertype == Frame.EtherType.IPv4:
packet = Packet(frame.payload)
r['IPv4'] = OrderedDict([
('Protocol', Packet.Protocol[packet.protocol]),
('Src IP', ip_to_str(packet.src)),
('Dst IP', ip_to_str(packet.dst)),
('Payload', repr(packet.payload)),
])
elif frame.ethertype == Frame.EtherType.ARP:
arp = ARP(frame.payload)
r['ARP'] = OrderedDict([
('Oper', ARP.Oper[arp.oper]),
('Src IP', ip_to_str(arp.src_ip)),
('Src MAC', '{:02x}'.format(mac_from_bytes(arp.src_mac))),
('Dst IP', ip_to_str(arp.dst_ip)),
('Dst MAC', '{:02x}'.format(mac_from_bytes(arp.dst_mac))),
])
return r
def on_arp(self, raw):
arp = ARP(raw)
if arp.oper == ARP.Oper.IAm:
mint.report('{} got ARP annoucement from {}'.format(
ip_to_str(self.ip),
ip_to_str(arp.src_ip),
))
self.arp_cache[arp.src_ip] = (arp.src_mac, mint.now())
packets = self.pending_packets[arp.src_ip]
for packet in packets:
self.framer.send(packet.raw, arp.src_mac)
del packets[:]
elif arp.oper == ARP.Oper.WhoIs:
if not arp.dst_ip == self.ip:
mint.report('{} got irrelevant ARP packet'.format(
ip_to_str(self.ip)))
return
packet = ARP(
oper=ARP.Oper.IAm,
src_ip=self.ip,
src_mac=self.framer.mac,
dst_ip=arp.src_ip,
dst_mac=arp.src_mac,
).raw
self.framer.send(
packet,
to=arp.src_mac,
ethertype=Frame.EtherType.ARP,
)
def status(self):
raw = self.getter()
r = OrderedDict([('raw', repr(raw))])
if raw:
frame = Frame(raw)
r['Frame'] = OrderedDict([
('Dst MAC', '{:02x}'.format(mac_from_bytes(frame.dst))),
('Src MAC', '{:02x}'.format(mac_from_bytes(frame.src))),
('EtherType', Frame.EtherType[frame.ethertype]),
])
if frame.ethertype == Frame.EtherType.IPv4:
packet = Packet(frame.payload)
r['IPv4'] = OrderedDict([
('Protocol', Packet.Protocol[packet.protocol]),
('Src IP', ip_to_str(packet.src)),
('Dst IP', ip_to_str(packet.dst)),
('Payload', repr(packet.payload)),
])
elif frame.ethertype == Frame.EtherType.ARP:
arp = ARP(frame.payload)
r['ARP'] = OrderedDict([
('Oper', ARP.Oper[arp.oper]),
('Src IP', ip_to_str(arp.src_ip)),
('Src MAC', '{:02x}'.format(mac_from_bytes(arp.src_mac))),
('Dst IP', ip_to_str(arp.dst_ip)),
('Dst MAC', '{:02x}'.format(mac_from_bytes(arp.dst_mac))),
])
return r
def on_ipv4(self, raw):
packet = Packet(raw)
mint.report('{} recved {}'.format(
ip_to_str(self.ip),
repr(packet.payload),
))
def ip(self):
return ip_to_str(self.packeter.ip)
