xref: /freebsd/tests/sys/netinet/arp.sh (revision 9a5aaa97cbae024f90bb626f78c3dbde28653c58) 
1#!/usr/bin/env atf-sh
2#-
3# SPDX-License-Identifier: BSD-2-Clause
4#
5# Copyright (c) 2021 Alexander V. Chernikov
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#
29
30. $(atf_get_srcdir)/../common/vnet.subr
31
32atf_test_case "arp_add_success" "cleanup"
33arp_add_success_head() {
34	atf_set descr 'Test static arp record addition'
35	atf_set require.user root
36}
37
38arp_add_success_body() {
39
40	vnet_init
41
42	jname="v4t-arp_add_success"
43
44	epair0=$(vnet_mkepair)
45
46	vnet_mkjail ${jname} ${epair0}a
47
48	jexec ${jname} ifconfig ${epair0}a inet 198.51.100.1/24
49
50	atf_check jexec ${jname} arp -s 198.51.100.2 90:10:00:01:02:03
51
52	atf_check -o match:"\? \(198.51.100.2\) at 90:10:00:01:02:03 on ${epair0}a permanent" jexec ${jname} arp -ni ${epair0}a 198.51.100.2
53}
54
55arp_add_success_cleanup() {
56	vnet_cleanup
57}
58
59
60atf_test_case "arp_del_success" "cleanup"
61arp_del_success_head() {
62	atf_set descr 'Test arp record deletion'
63	atf_set require.user root
64}
65
66arp_del_success_body() {
67
68	vnet_init
69
70	jname="v4t-arp_del_success"
71
72	epair0=$(vnet_mkepair)
73
74	vnet_mkjail ${jname} ${epair0}a
75
76	jexec ${jname} ifconfig ${epair0}a inet 198.51.100.1/24
77
78	jexec ${jname} ping -c1 -t1 198.51.100.2
79
80	atf_check -o match:"198.51.100.2 \(198.51.100.2\) deleted" jexec ${jname} arp -nd 198.51.100.2
81	atf_check -s exit:1 -o match:"198.51.100.2 \(198.51.100.2\) -- no entry" jexec ${jname} arp -n 198.51.100.2
82}
83
84arp_del_success_cleanup() {
85	vnet_cleanup
86}
87
88atf_test_case "pending_delete_if" "cleanup"
89pending_delete_if_head() {
90	atf_set descr 'Test having pending link layer lookups on interface delete'
91	atf_set require.user root
92}
93
94pending_delete_if_body() {
95	vnet_init
96
97	jname="arp_pending_delete_if"
98	epair=$(vnet_mkepair)
99
100	ifconfig ${epair}b up
101
102	vnet_mkjail ${jname} ${epair}a
103	jexec ${jname} ifconfig ${epair}a 198.51.100.1/24
104	for i in `seq 2 200`
105	do
106		jexec ${jname} ping 198.51.100.${i} &
107	done
108
109	# Give the ping processes time to send their ARP requests
110	sleep 1
111
112	jexec ${jname} arp -an
113	jexec ${jname} killall ping
114
115	# Delete the interface. Test failure panics the machine.
116	ifconfig ${epair}b destroy
117}
118
119pending_delete_if_cleanup() {
120	vnet_cleanup
121}
122
123
124atf_test_case "arp_lookup_host" "cleanup"
125arp_lookup_host_head() {
126	atf_set descr 'Test looking up a specific host'
127	atf_set require.user root
128}
129
130arp_lookup_host_body() {
131
132	vnet_init
133
134	jname="v4t-arp_lookup_host"
135
136	epair0=$(vnet_mkepair)
137
138	vnet_mkjail ${jname}a ${epair0}a
139	vnet_mkjail ${jname}b ${epair0}b
140
141	ipa=198.51.100.1
142	ipb=198.51.100.2
143
144	atf_check -o ignore \
145		  ifconfig -j ${jname}a ${epair0}a inet ${ipa}/24
146	atf_check -o ignore \
147		  ifconfig -j ${jname}b ${epair0}b inet ${ipb}/24
148
149	# get jail b's MAC address
150	eth="$(ifconfig -j ${jname}b ${epair0}b |
151		sed -nE "s/^\tether ([0-9a-f:]*)$/\1/p")"
152
153	# no entry yet
154	atf_check -s exit:1 -o match:"\(${ipb}\) -- no entry" \
155		  jexec ${jname}a arp -n ${ipb}
156
157	# now ping jail b from jail a
158	atf_check -o ignore \
159		  jexec ${jname}a ping -c1 ${ipb}
160
161	# should be populated
162	atf_check -o match:"\(${ipb}\) at $eth on ${epair0}a" \
163		  jexec ${jname}a arp -n ${ipb}
164
165}
166
167arp_lookup_host_cleanup() {
168	vnet_cleanup
169}
170
171
172atf_test_case "static" "cleanup"
173static_head() {
174	atf_set descr 'Test arp -s/-S works'
175	atf_set require.user root
176}
177
178static_body() {
179
180	vnet_init
181
182	jname="v4t-arp_static_host"
183
184	epair0=$(vnet_mkepair)
185
186	vnet_mkjail ${jname}a ${epair0}a
187	vnet_mkjail ${jname}b ${epair0}b
188
189	ipa=198.51.100.1
190	ipb=198.51.100.2
191	max_age=$(sysctl -n net.link.ether.inet.max_age)
192
193	atf_check ifconfig -j ${jname}a ${epair0}a inet ${ipa}/24
194	eth="$(ifconfig -j ${jname}b ${epair0}b |
195		sed -nE "s/^\tether ([0-9a-f:]*)$/\1/p")"
196
197	# Expected outputs
198	permanent=\
199"? (${ipb}) at 00:00:00:00:00:00 on ${epair0}a permanent [ethernet]\n"
200	temporary=\
201"? (${ipb}) at ${eth} on ${epair0}a expires in ${max_age} seconds [ethernet]\n"
202	deleted=\
203"${ipb} (${ipb}) deleted\n"
204
205	# first check -s
206	atf_check jexec ${jname}a arp -s ${ipb} 0:0:0:0:0:0
207	# the jail B ifconfig will send gratuitous ARP that will trigger A
208	atf_check ifconfig -j ${jname}b ${epair0}b inet ${ipb}/24
209	atf_check -o "inline:${permanent}" jexec ${jname}a arp -n ${ipb}
210	if [ $(sysctl -n net.link.ether.inet.log_arp_permanent_modify) -ne 0 ];
211	then
212		msg=$(dmesg | tail -n 1)
213		atf_check_equal "${msg}" \
214"arp: ${eth} attempts to modify permanent entry for ${ipb} on ${epair0}a"
215	fi
216
217	# then check -S
218	atf_check -o "inline:${deleted}" jexec ${jname}a arp -nd ${ipb}
219	atf_check -o ignore jexec ${jname}b ping -c1 ${ipa}
220	atf_check -o "inline:${temporary}" jexec ${jname}a arp -n ${ipb}
221	# Note: this doesn't fail, tracked all the way down to FreeBSD 8
222	# atf_check -s not-exit:0 jexec ${jname}a arp -s ${ipb} 0:0:0:0:0:0
223	atf_check -o "inline:${deleted}" \
224	    jexec ${jname}a arp -S ${ipb} 0:0:0:0:0:0
225	atf_check -o "inline:${permanent}" jexec ${jname}a arp -n ${ipb}
226}
227
228static_cleanup() {
229	vnet_cleanup
230}
231
232
233atf_init_test_cases()
234{
235
236	atf_add_test_case "arp_add_success"
237	atf_add_test_case "arp_del_success"
238	atf_add_test_case "pending_delete_if"
239	atf_add_test_case "arp_lookup_host"
240	atf_add_test_case "static"
241}
242
243# end
244
245