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fragattacks: bugfix

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Mathy 2020-04-27 11:51:00 -04:00 committed by Mathy Vanhoef
parent b4a5f635e8
commit 4fb673a9ca
1 changed files with 4 additions and 1 deletions
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5
research/fragattack.py
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@ -130,7 +130,7 @@ def freebsd_encap_eapolmsdu(p, src, dst, payload):
# ignored ICMP and ARP packets.
REQ_ARP, REQ_ICMP, REQ_DHCP = range(3)
def generate_request(sta, ptype, prior=2, icmp_size=0):
def generate_request(sta, ptype, prior=2, icmp_size=None):
header = sta.get_header(prior=prior)
if ptype == REQ_ARP:
# Avoid using sta.get_peermac() because the correct MAC addresses may not
@ -140,7 +140,10 @@ def generate_request(sta, ptype, prior=2, icmp_size=0):
elif ptype == REQ_ICMP:
label = b"test_ping_icmp"
if icmp_size == None: icmp_size = 0
payload = label + b"A" * max(0, icmp_size - len(label))
check = lambda p: ICMP in p and label in raw(p)
request = LLC()/SNAP()/IP(src=sta.ip, dst=sta.peerip)/ICMP()/Raw(payload)