1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2023 Kajetan Staszkiewicz <vegetga@tuxpowered.net>
#
# 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.
. $(atf_get_srcdir)/utils.subr
atf_test_case "forward_v4" "cleanup"
forward_v4_head()
{
atf_set descr 'Test IPv4 forwarding with rtable'
atf_set require.user root
atf_set require.progs python3 scapy
}
forward_v4_body()
{
setup_router_server_ipv4
# Sanity check
ping_server_check_reply exit:0
jexec router sysctl net.fibs=2
jexec router ifconfig ${epair_server}a fib 1
jexec router route del -net ${net_server}
jexec router route add -fib 1 -net ${net_server} -iface ${epair_server}a
# Sanity check
ping_server_check_reply exit:1
# This rule is not enough.
# Echo requests will be properly forwarded but replies can't be routed back.
pft_set_rules router \
"pass in on ${epair_tester}b inet proto icmp all icmp-type echoreq rtable 1"
ping_server_check_reply exit:1
# Allow replies coming back to the tester properly via stateful filtering post-routing.
pft_set_rules router \
"pass in on ${epair_tester}b inet proto icmp all icmp-type echoreq rtable 1" \
"pass out on ${epair_server}a inet proto icmp all icmp-type echoreq rtable 0"
ping_server_check_reply exit:0
# Allow replies coming back to the tester properly via provding extra routes in rtable 1
pft_set_rules router \
"pass in on ${epair_tester}b inet proto icmp all icmp-type echoreq rtable 1"
jexec router route add -fib 1 -net ${net_tester} -iface ${epair_tester}b
ping_server_check_reply exit:0
}
forward_v4_cleanup()
{
pft_cleanup
}
atf_test_case "forward_v6" "cleanup"
forward_v6_head()
{
atf_set descr 'Test IPv6 forwarding with rtable'
atf_set require.user root
atf_set require.progs python3 scapy
}
forward_v6_body()
{
setup_router_server_ipv6
# Sanity check
ping_server_check_reply exit:0
jexec router sysctl net.fibs=2
jexec router ifconfig ${epair_server}a fib 1
jexec router route del -6 ${net_server}
jexec router route add -fib 1 -6 ${net_server} -iface ${epair_server}a
# Sanity check
ping_server_check_reply exit:1
# This rule is not enough.
# Echo requests will be properly forwarded but replies can't be routed back.
pft_set_rules router \
"pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \
"pass in on ${epair_tester}b inet6 proto icmp6 icmp6-type echoreq"
ping_server_check_reply exit:1
# Allow replies coming back to the tester properly via stateful filtering post-routing.
pft_set_rules router \
"pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \
"pass in on ${epair_tester}b inet6 proto icmp6 icmp6-type echoreq rtable 1" \
"pass out on ${epair_server}a inet6 proto icmp6 icmp6-type echoreq rtable 0"
ping_server_check_reply exit:0
# Allow replies coming back to the tester properly via provding extra routes in rtable 1
pft_set_rules router \
"pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv }" \
"pass in on ${epair_tester}b inet6 proto icmp6 icmp6-type echoreq rtable 1"
jexec router route add -fib 1 -6 ${net_tester} -iface ${epair_tester}b
ping_server_check_reply exit:0
}
forward_v6_cleanup()
{
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "forward_v4"
atf_add_test_case "forward_v6"
}
|
