58 lines
1.6 KiB
Python
Executable File
58 lines
1.6 KiB
Python
Executable File
#!/usr/bin/env python
|
|
import sys
|
|
import struct
|
|
|
|
from scapy.all import sniff, sendp, hexdump, get_if_list, get_if_hwaddr
|
|
from scapy.all import Packet, IPOption
|
|
from scapy.all import PacketListField, ShortField, IntField, LongField, BitField, FieldListField, FieldLenField
|
|
from scapy.all import IP, UDP, Raw
|
|
from scapy.layers.inet import _IPOption_HDR
|
|
|
|
def get_if():
|
|
ifs=get_if_list()
|
|
iface=None
|
|
for i in get_if_list():
|
|
if "eth0" in i:
|
|
iface=i
|
|
break;
|
|
if not iface:
|
|
print "Cannot find eth0 interface"
|
|
exit(1)
|
|
return iface
|
|
|
|
class SwitchTrace(Packet):
|
|
fields_desc = [ IntField("swid", 0),
|
|
IntField("qdepth", 0)]
|
|
def extract_padding(self, p):
|
|
return "", p
|
|
|
|
class IPOption_MRI(IPOption):
|
|
name = "MRI"
|
|
option = 31
|
|
fields_desc = [ _IPOption_HDR,
|
|
FieldLenField("length", None, fmt="B",
|
|
length_of="swtraces",
|
|
adjust=lambda pkt,l:l*2+4),
|
|
ShortField("count", 0),
|
|
PacketListField("swtraces",
|
|
[],
|
|
SwitchTrace,
|
|
count_from=lambda pkt:(pkt.count*1)) ]
|
|
|
|
def handle_pkt(pkt):
|
|
print "got a packet"
|
|
pkt.show2()
|
|
# hexdump(pkt)
|
|
sys.stdout.flush()
|
|
|
|
|
|
def main():
|
|
iface = 'eth0'
|
|
print "sniffing on %s" % iface
|
|
sys.stdout.flush()
|
|
sniff(filter="udp and port 4321", iface = iface,
|
|
prn = lambda x: handle_pkt(x))
|
|
|
|
if __name__ == '__main__':
|
|
main()
|