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netinet tests: test carp source MAC address
Ensure that (multicast) CARP packets are sent with the expected source MAC address. Reviewed by: melifaro Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D39454
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@ -24,6 +24,8 @@ ATF_TESTS_SH= arp \
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output \
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redirect
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ATF_TESTS_PYTEST+= carp.py
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TEST_METADATA.divert+= required_programs="python"
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TEST_METADATA.forward+= required_programs="python"
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TEST_METADATA.output+= required_programs="python"
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53
tests/sys/netinet/carp.py
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53
tests/sys/netinet/carp.py
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@ -0,0 +1,53 @@
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import pytest
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from atf_python.sys.net.tools import ToolsHelper
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from atf_python.sys.net.vnet import VnetTestTemplate
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sc = None
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def filter_f(x):
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ip = x.getlayer(sc.IP)
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if not ip:
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return False
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return ip.proto == 112
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class TestCarp(VnetTestTemplate):
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REQUIRED_MODULES = ["carp"]
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TOPOLOGY = {
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"vnet1": {"ifaces": ["if1"]},
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"if1": {"prefixes4": [("192.0.2.1/24", "192.0.2.2/24")]},
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}
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def setup_method(self, method):
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global sc
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if sc is None:
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import scapy.all as _sc
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sc = _sc
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super().setup_method(method)
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@classmethod
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def check_carp_src_mac(self, pkts):
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for p in pkts:
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if not filter_f(p):
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continue
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print("Packet src mac {}".format(p.src))
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if p.src != "00:00:5e:00:01:01":
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raise
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def test_source_mac(self):
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"Test carp packets source address"
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if1 = self.vnet.iface_alias_map["if1"]
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ToolsHelper.print_output(
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"ifconfig {} add vhid 1 192.0.2.203/24".format(if1.name)
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)
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carp_pkts = sc.sniff(iface=if1.name, stop_filter=filter_f, timeout=5)
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self.check_carp_src_mac(carp_pkts)
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