Sory for my bad english. Perhaps issue has been resolved, but unfortunately I have not found a solution for my question. In general, there was a problem with the task. Can someone help me? Using scapy and netinfo, I need create functionality which sends ping requests to "8.8.8.8" host out of the default network interface in the system (something like 'ethX', where X is number) and verifies that the requests have been sent by capturing outgoing packets.
with this step, I partly understood:
#!/usr/bin/python
import sys
from scapy.all import *
import netinfo
class test:
host = "8.8.8.8"
def pingh(self):
self.host
pkt = Ether()/IP(dst=self.host,ttl=(1,3))/ICMP()
ans,unans = srp(pkt,iface="eth0",timeout=2)
ans.summary(lambda (s,r): r.sprintf("%Ether.src% %IP.src%") )
r = test()
print "request from ping "
r.pingh()
but at the next step I was stuck:
Do the same for 'lo' and 'ethX' interfaces simultaneously (use standard 'threading' module). Captured results should be collected into dictionary which has the following structure: {'iface1': list_of_captured_packets, 'iface2': list_of_captured_packets, ...}. Modification of this dictionary should be thread-safe. Modify the test class by adding a test which checks that resulting dictionary contains both - 'lo' and 'ethX' interfaces as keys. PS Don't let me die a fool :)
The following uses the threading
module to do two parallel ping
tests, one on each of two interfaces. For future work, use the multiprocessing module with Pool()
and imap_unordered()
-- it's a lot easier.
# INSTALL:
# sudo apt-get install python-scapy
# RUN:
# sudo /usr/bin/python ./pping.py
import sys, Queue, threading
from scapy import all as S
IFACE_LIST = 'wlan0','lo'
# pylint:disable=E1101
def run_ping(iface, out_q):
host = '8.8.8.8'
pkt = S.Ether()/S.IP(dst=host, ttl=(1,3))/S.ICMP()
ans,_unans = S.srp(pkt, iface=iface, timeout=2)
out_q.put( (iface,ans) )
result_q = Queue.Queue()
for iface in IFACE_LIST:
threading.Thread(
target=run_ping, args=(iface, result_q)
).start()
for t in threading.enumerate():
if t != threading.current_thread():
t.join()
print 'result:', dict( [
result_q.get()
for _ in range(result_q.qsize())
] )
Output:
Begin emission:
Begin emission:
..Finished to send 3 packets.
*Finished to send 3 packets.
...**
Received 5 packets, got 3 answers, remaining 0 packets
....................
Received 23 packets, got 0 answers, remaining 3 packets
result: {'lo': <Results: TCP:0 UDP:0 ICMP:0 Other:0>, 'wlan0': <Results: TCP:0 UDP:0 ICMP:3 Other:0>}
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