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Diffstat (limited to 'tests/sys/netpfil/pf/mld.py')
| -rw-r--r-- | tests/sys/netpfil/pf/mld.py | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/tests/sys/netpfil/pf/mld.py b/tests/sys/netpfil/pf/mld.py new file mode 100644 index 000000000000..d118a34c8a7d --- /dev/null +++ b/tests/sys/netpfil/pf/mld.py @@ -0,0 +1,95 @@ +# +# SPDX-License-Identifier: BSD-2-Clause +# +# Copyright (c) 2025 Rubicon Communications, LLC (Netgate) +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +import pytest +from utils import DelayedSend +from atf_python.sys.net.tools import ToolsHelper +from atf_python.sys.net.vnet import VnetTestTemplate + +class TestMLD(VnetTestTemplate): + REQUIRED_MODULES = [ "pf" ] + TOPOLOGY = { + "vnet1": {"ifaces": ["if1"]}, + "vnet2": {"ifaces": ["if1"]}, + "if1": {"prefixes6": [("2001:db8::2/64", "2001:db8::1/64")]}, + } + + def vnet2_handler(self, vnet): + ifname = vnet.iface_alias_map["if1"].name + #ToolsHelper.print_output("/sbin/pfctl -e") + ToolsHelper.pf_rules([ + "pass", + ]) + ToolsHelper.print_output("/sbin/pfctl -x loud") + #ToolsHelper.print_output("echo \"j 230.0.0.1 %s\ns 3600\nq\" | /usr/sbin/mtest" % ifname) + + def find_mld_reply(self, pkt, ifname): + pkt.show() + s = DelayedSend(pkt) + + found = False + packets = self.sp.sniff(iface=ifname, timeout=5) + for r in packets: + r.show() + mld = r.getlayer(self.sp.ICMPv6MLReport2) + if not mld: + continue + mld.show() + found = True + return found + + @pytest.mark.require_user("root") + @pytest.mark.require_progs(["scapy"]) + def test_router_alert(self): + """Verify that we allow MLD packets with router alert extension header""" + ifname = self.vnet.iface_alias_map["if1"].name + #ToolsHelper.print_output("/sbin/ifconfig %s inet6 -ifdisable" % ifname) + ToolsHelper.print_output("/sbin/ifconfig") + + # Import in the correct vnet, so at to not confuse Scapy + import scapy.all as sp + import scapy.contrib as sc + import scapy.contrib.igmp + self.sp = sp + self.sc = sc + + # A correct MLD query gets a reply + pkt = sp.IPv6(src="fe80::1%%%s" % ifname, dst="ff02::1", hlim=1) \ + / sp.RouterAlert(value=0) \ + / sp.ICMPv6MLQuery2() + assert self.find_mld_reply(pkt, ifname) + + # The wrong extension header does not + pkt = sp.IPv6(src="fe80::1%%%s" % ifname, dst="ff02::1", hlim=1) \ + / sp.IPv6ExtHdrRouting() \ + / sp.ICMPv6MLQuery2() + assert not self.find_mld_reply(pkt, ifname) + + # Neither does an incorrect hop limit + pkt = sp.IPv6(src="fe80::1%%%s" % ifname, dst="ff02::1", hlim=2) \ + / sp.RouterAlert(value=0) \ + / sp.ICMPv6MLQuery2() + assert not self.find_mld_reply(pkt, ifname) |