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tests/sys/netinet6/frag6/frag6_udppayload.py
- This file was added.
#!/usr/local/bin/python2.7 | |||||
print "udp fragments with splitted payload" | |||||
# |--------| | |||||
# |----| | |||||
import os | |||||
from addr import * | |||||
from scapy.all import * | |||||
pid=os.getpid() | |||||
uport=pid & 0xffff | |||||
# inetd ignores UDP packets from privileged port or nfs | |||||
if uport < 1024 or uport == 2049: | |||||
uport+=1024 | |||||
payload="ABCDEFGHIJKLMNOP" | |||||
packet=IPv6(src=LOCAL_ADDR6, dst=REMOTE_ADDR6)/ \ | |||||
UDP(sport=uport, dport=7)/payload | |||||
frag=[] | |||||
fid=pid & 0xffffffff | |||||
frag.append(IPv6ExtHdrFragment(nh=17, id=fid, m=1)/str(packet)[40:56]) | |||||
frag.append(IPv6ExtHdrFragment(nh=17, id=fid, offset=2)/str(packet)[56:64]) | |||||
eth=[] | |||||
for f in frag: | |||||
pkt=IPv6(src=LOCAL_ADDR6, dst=REMOTE_ADDR6)/f | |||||
eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/pkt) | |||||
if os.fork() == 0: | |||||
time.sleep(1) | |||||
sendp(eth, iface=LOCAL_IF) | |||||
os._exit(0) | |||||
ans=sniff(iface=LOCAL_IF, timeout=3, filter= | |||||
"ip6 and src "+REMOTE_ADDR6+" and dst "+LOCAL_ADDR6+" and udp") | |||||
for a in ans: | |||||
if a and a.type == ETH_P_IPV6 and \ | |||||
ipv6nh[a.payload.nh] == 'UDP' and \ | |||||
a.payload.payload.sport == 7: | |||||
port=a.payload.payload.dport | |||||
print "port=%d" % (port) | |||||
if port != uport: | |||||
print "WRONG UDP ECHO REPLY PORT" | |||||
exit(2) | |||||
data=a.payload.payload.load | |||||
print "payload=%s" % (data) | |||||
if data == payload: | |||||
exit(0) | |||||
print "PAYLOAD!=%s" % (payload) | |||||
exit(1) | |||||
print "NO UDP ECHO REPLY" | |||||
exit(2) |