D39454.diff
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	diff --git a/tests/sys/netinet/Makefile b/tests/sys/netinet/Makefile
	--- a/tests/sys/netinet/Makefile
	+++ b/tests/sys/netinet/Makefile
	@@ -24,6 +24,8 @@
	output \
	redirect

	+ATF_TESTS_PYTEST+= carp.py
	+
	TEST_METADATA.divert+= required_programs="python"
	TEST_METADATA.forward+= required_programs="python"
	TEST_METADATA.output+= required_programs="python"
	diff --git a/tests/sys/netinet/carp.py b/tests/sys/netinet/carp.py
	new file mode 100644
	--- /dev/null
	+++ b/tests/sys/netinet/carp.py
	@@ -0,0 +1,53 @@
	+import pytest
	+from atf_python.sys.net.tools import ToolsHelper
	+from atf_python.sys.net.vnet import VnetTestTemplate
	+
	+sc = None
	+
	+
	+def filter_f(x):
	+ ip = x.getlayer(sc.IP)
	+ if not ip:
	+ return False
	+
	+ return ip.proto == 112
	+
	+
	+class TestCarp(VnetTestTemplate):
	+ REQUIRED_MODULES = ["carp"]
	+ TOPOLOGY = {
	+ "vnet1": {"ifaces": ["if1"]},
	+ "if1": {"prefixes4": [("192.0.2.1/24", "192.0.2.2/24")]},
	+ }
	+
	+ def setup_method(self, method):
	+ global sc
	+ if sc is None:
	+ import scapy.all as _sc
	+
	+ sc = _sc
	+ super().setup_method(method)
	+
	+ @classmethod
	+ def check_carp_src_mac(self, pkts):
	+ for p in pkts:
	+ if not filter_f(p):
	+ continue
	+
	+ print("Packet src mac {}".format(p.src))
	+
	+ if p.src != "00:00:5e:00:01:01":
	+ raise
	+
	+ def test_source_mac(self):
	+ "Test carp packets source address"
	+
	+ if1 = self.vnet.iface_alias_map["if1"]
	+
	+ ToolsHelper.print_output(
	+ "ifconfig {} add vhid 1 192.0.2.203/24".format(if1.name)
	+ )
	+
	+ carp_pkts = sc.sniff(iface=if1.name, stop_filter=filter_f, timeout=5)
	+
	+ self.check_carp_src_mac(carp_pkts)