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tests/pf/igmp: fix attribute error with newer versions of scapy

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This fixes the flaky testcase in CI[0].

While here:
* fix a typo in a comment
* remove an unnecessary import
* fix this deprecation warning:

  /usr/local/lib/python3.12/site-packages/scapy/contrib/igmp.py:12:
  DeprecationWarning: scapy.contrib.igmp is deprecated. Please use
  scapy.layers.igmp instead !

[0] https://ci.freebsd.org/job/FreeBSD-main-amd64-test/29813/testReport/junit/sys.netpfil.pf.igmp/py/TestIGMP__test_ip_opts/

Reviewed by:	kp
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Siva Mahadevan committed 2026-10-27 12:54:20 -04:00
1 parent eca7cba74c
commit d9d6e77965
1 file changed
+9 -10
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tests/sys/netpfil/pf/igmp.py
+9 -10
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@@ -54,11 +54,11 @@ class TestIGMP(VnetTestTemplate):
packets = self.sp.sniff(iface=ifname, timeout=5)
for r in packets:
r.show()
igmp = r.getlayer(self.sc.igmp.IGMP)
igmp = r.getlayer(self.sl.igmp.IGMP)
if not igmp:
continue
igmp.show()
if not igmp.gaddr == "230.0.0.1":
if getattr(igmp, 'gaddr', '0.0.0.0') != "230.0.0.1":
continue
found = True
return found
@@ -69,33 +69,32 @@ class TestIGMP(VnetTestTemplate):
"""Verify that we allow IGMP packets with IP options"""
ifname = self.vnet.iface_alias_map["if1"].name
# Import in the correct vnet, so at to not confuse Scapy
# Import in the correct vnet, so as to not confuse Scapy
import scapy.all as sp
import scapy.contrib as sc
import scapy.contrib.igmp
import scapy.layers as sl
self.sp = sp
self.sc = sc
self.sl = sl
# We allow IGMP packets with the router alert option
pkt = sp.IP(dst="224.0.0.1%%%s" % ifname, ttl=1,
options=[sp.IPOption_Router_Alert()]) \
/ sc.igmp.IGMP(type=0x11, mrcode=1)
/ sl.igmp.IGMP(type=0x11, mrcode=1)
assert self.find_igmp_reply(pkt, ifname)
# But not with other options
pkt = sp.IP(dst="224.0.0.1%%%s" % ifname, ttl=1,
options=[sp.IPOption_NOP()]) \
/ sc.igmp.IGMP(type=0x11, mrcode=1)
/ sl.igmp.IGMP(type=0x11, mrcode=1)
assert not self.find_igmp_reply(pkt, ifname)
# Or with the wrong TTL
pkt = sp.IP(dst="224.0.0.1%%%s" % ifname, ttl=2,
options=[sp.IPOption_Router_Alert()]) \
/ sc.igmp.IGMP(type=0x11, mrcode=1)
/ sl.igmp.IGMP(type=0x11, mrcode=1)
assert not self.find_igmp_reply(pkt, ifname)
# Or with the wrong destination address
pkt = sp.IP(dst="224.0.0.2%%%s" % ifname, ttl=2,
options=[sp.IPOption_Router_Alert()]) \
/ sc.igmp.IGMP(type=0x11, mrcode=1)
/ sl.igmp.IGMP(type=0x11, mrcode=1)
assert not self.find_igmp_reply(pkt, ifname)