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