1# $NetBSD: t_repeated_link_addr.sh,v 1.4 2020/07/27 16:57:44 gson Exp $
2#
3# Copyright (c) 2020 The NetBSD Foundation, Inc.
4# All rights reserved.
5#
6# This code is derived from software contributed to The NetBSD Foundation
7# by Jukka Ruohonen.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17#
18# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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28# POSSIBILITY OF SUCH DAMAGE.
29#
30atf_test_case repeated_link_addr
31repeated_link_addr_head() {
32	atf_set "require.user" "root"
33	atf_set "descr" "Check with ifconfig(8) that " \
34		"setting link addresses for active interfaces " \
35		"does not cause a panic (PR kern/41912)"
36}
37
38repeated_link_addr_body() {
39
40	if ! [ $(atf_config_get "run_unsafe" "no") = "yes" ]
41	then
42		atf_skip "can disrupt networking; also PR port-evbarm/55521"
43	fi
44
45	fail=0
46	addrs="00:11:00:00:00:00 \
47	       00:11:11:00:00:00 \
48	       00:11:11:11:00:00 \
49	       00:11:11:11:11:00 \
50	       00:00:11:00:00:00 \
51	       00:00:11:11:00:00 \
52	       00:00:11:11:11:00 \
53	       00:00:00:11:00:00 \
54	       00:00:00:11:11:00"
55
56	pkill -9 hostapd
57	pkill -9 wpa_supplicant
58
59	for i in $(ifconfig -l); do
60
61		state="up"
62		addr=$(ifconfig $i | grep "address")
63		addr=$(echo $addr | sed "s/address: //" | sed 's/ //')
64
65		if [ -z "$addr" ]; then
66			echo "Skipping $i"
67			continue
68		fi
69
70		ifconfig -s $i
71
72		if [ $? -eq 1 ]; then
73			state="down"
74			ifconfig $i up
75			sleep 1
76		fi
77
78		for j in $addrs; do
79
80			echo "Request: ifconfig $i link $j active"
81			ifconfig $i link $j active
82
83			if [ ! $? -eq 0 ]; then
84				fail=1
85			fi
86
87			if [ -z "$(ifconfig $i | grep $j)" ]; then
88				fail=1
89			fi
90
91			sleep 0.5
92		done
93
94		# From the ifconfig(8) manual page:
95		#
96		# "You may not delete the active address from an interface.
97		#  You must activate some other address, first."
98		#
99		ifconfig $i link $addr active
100		echo "Restored the link address of $i to $addr"
101		sleep 0.5
102
103		for j in $addrs; do
104			echo "Request: ifconfig $i link $j delete"
105			ifconfig $i link $j delete
106			sleep 0.5
107		done
108
109		ifconfig $i $state
110		echo "Restored state of $i to $state"
111	done
112
113	/bin/sh /etc/rc.d/hostapd restart >/dev/null 2>&1
114	/bin/sh /etc/rc.d/wpa_supplicant restart >/dev/null 2>&1
115
116	if [ $fail -eq 1 ]; then
117		atf_fail "Failed to set link addresses"
118	fi
119
120	atf_pass
121}
122
123atf_init_test_cases() {
124	atf_add_test_case repeated_link_addr
125}
126