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diff --git a/tests/sys/netinet/igmp.py b/tests/sys/netinet/igmp.py
--- a/tests/sys/netinet/igmp.py
+++ b/tests/sys/netinet/igmp.py
@@ -62,6 +62,25 @@
return True
+def check_igmpv2(args, pkt):
+ pkt.show()
+
+ igmp = pkt.getlayer(sc.igmp.IGMP)
+ if igmp is None:
+ return False
+
+ if igmp.gaddr != args["group"]:
+ return False
+
+ if args["type"] == "join":
+ if igmp.type != 0x16:
+ return False
+ if args["type"] == "leave":
+ if igmp.type != 0x17:
+ return False
+
+ return True
+
class TestIGMP(VnetTestTemplate):
REQUIRED_MODULES = []
TOPOLOGY = {
@@ -82,7 +101,7 @@
@pytest.mark.require_progs(["scapy"])
def test_igmp3_join_leave(self):
- "Test that we send the expected join/leave IGMPv2 messages"
+ "Test that we send the expected join/leave IGMPv3 messages"
if1 = self.vnet.iface_alias_map["if1"]
@@ -107,3 +126,32 @@
s.close()
sniffer.join()
assert(sniffer.correctPackets > 0)
+
+ @pytest.mark.require_progs(["scapy"])
+ def test_igmp2_join_leave(self):
+ "Test that we send the expected join/leave IGMPv2 messages"
+ ToolsHelper.print_output("/sbin/sysctl net.inet.igmp.default_version=2")
+
+ if1 = self.vnet.iface_alias_map["if1"]
+
+ # Start a background sniff
+ from sniffer import Sniffer
+ expected_pkt = { "type": "join", "group": "230.0.0.1" }
+ sniffer = Sniffer(expected_pkt, check_igmpv2, if1.name, timeout=10)
+
+ # Now join a multicast group, and see if we're getting the igmp packet we expect
+ s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
+ mreq = struct.pack("4sl", socket.inet_aton('230.0.0.1'), socket.INADDR_ANY)
+ s.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
+
+ # Wait for the sniffer to see the join packet
+ sniffer.join()
+ assert(sniffer.correctPackets > 0)
+
+ # Now leave, check for the packet
+ expected_pkt = { "type": "leave", "group": "230.0.0.1" }
+ sniffer = Sniffer(expected_pkt, check_igmpv2, if1.name)
+
+ s.close()
+ sniffer.join()
+ assert(sniffer.correctPackets > 0)

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