1# $FreeBSD$ 2# 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2023 Kajetan Staszkiewicz <vegetga@tuxpowered.net> 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27 28. $(atf_get_srcdir)/utils.subr 29 30atf_test_case "forward_v4" "cleanup" 31forward_v4_head() 32{ 33 atf_set descr 'Test IPv4 forwarding with rtable' 34 atf_set require.user root 35 atf_set require.progs scapy 36} 37 38forward_v4_body() 39{ 40 setup_router_server_ipv4 41 42 # Sanity check 43 ping_server_check_reply exit:0 44 45 jexec router sysctl net.fibs=2 46 jexec router ifconfig ${epair_server}a fib 1 47 jexec router route del -net ${net_server} 48 jexec router route add -fib 1 -net ${net_server} -iface ${epair_server}a 49 50 # Sanity check 51 ping_server_check_reply exit:1 52 53 # This rule is not enough. 54 # Echo requests will be properly forwarded but replies can't be routed back. 55 pft_set_rules router \ 56 "pass in on ${epair_tester}b inet proto icmp all icmp-type echoreq rtable 1" 57 ping_server_check_reply exit:1 58 59 # Allow replies coming back to the tester properly via stateful filtering post-routing. 60 pft_set_rules router \ 61 "pass in on ${epair_tester}b inet proto icmp all icmp-type echoreq rtable 1" \ 62 "pass out on ${epair_server}a inet proto icmp all icmp-type echoreq rtable 0" 63 ping_server_check_reply exit:0 64 65 # Allow replies coming back to the tester properly via provding extra routes in rtable 1 66 pft_set_rules router \ 67 "pass in on ${epair_tester}b inet proto icmp all icmp-type echoreq rtable 1" 68 jexec router route add -fib 1 -net ${net_tester} -iface ${epair_tester}b 69 ping_server_check_reply exit:0 70} 71 72forward_v4_cleanup() 73{ 74 pft_cleanup 75} 76 77atf_test_case "forward_v6" "cleanup" 78forward_v6_head() 79{ 80 atf_set descr 'Test IPv6 forwarding with rtable' 81 atf_set require.user root 82 atf_set require.progs scapy 83} 84 85forward_v6_body() 86{ 87 setup_router_server_ipv6 88 89 # Sanity check 90 ping_server_check_reply exit:0 91 92 jexec router sysctl net.fibs=2 93 jexec router ifconfig ${epair_server}a fib 1 94 jexec router route del -6 ${net_server} 95 jexec router route add -fib 1 -6 ${net_server} -iface ${epair_server}a 96 97 # Sanity check 98 ping_server_check_reply exit:1 99 100 # This rule is not enough. 101 # Echo requests will be properly forwarded but replies can't be routed back. 102 pft_set_rules router \ 103 "pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \ 104 "pass in on ${epair_tester}b inet6 proto icmp6 icmp6-type echoreq" 105 ping_server_check_reply exit:1 106 107 # Allow replies coming back to the tester properly via stateful filtering post-routing. 108 pft_set_rules router \ 109 "pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \ 110 "pass in on ${epair_tester}b inet6 proto icmp6 icmp6-type echoreq rtable 1" \ 111 "pass out on ${epair_server}a inet6 proto icmp6 icmp6-type echoreq rtable 0" 112 ping_server_check_reply exit:0 113 114 # Allow replies coming back to the tester properly via provding extra routes in rtable 1 115 pft_set_rules router \ 116 "pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \ 117 "pass in on ${epair_tester}b inet6 proto icmp6 icmp6-type echoreq rtable 1" 118 jexec router route add -fib 1 -6 ${net_tester} -iface ${epair_tester}b 119 ping_server_check_reply exit:0 120} 121 122forward_v6_cleanup() 123{ 124 pft_cleanup 125} 126 127atf_init_test_cases() 128{ 129 atf_add_test_case "forward_v4" 130 atf_add_test_case "forward_v6" 131} 132