t_repeated_link_addr.sh revision 1.1 
1# $NetBSD: t_repeated_link_addr.sh,v 1.1 2020/06/30 11:48:20 jruoho 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	fail=0
41	addrs="00:11:00:00:00:00 \
42	       00:11:11:00:00:00 \
43	       00:11:11:11:00:00 \
44	       00:11:11:11:11:00 \
45	       00:00:11:00:00:00 \
46	       00:00:11:11:00:00 \
47	       00:00:11:11:11:00 \
48	       00:00:00:11:00:00 \
49	       00:00:00:11:11:00"
50
51	pkill -9 hostapd
52	pkill -9 wpa_supplicant
53
54	for i in $(ifconfig -l); do
55
56		state="up"
57		addr=$(ifconfig $i | grep "address")
58		addr=$(echo $addr | sed "s/address: //" | sed 's/ //')
59
60		if [ -z "$addr" ]; then
61			echo "Skipping $i"
62			continue
63		fi
64
65		ifconfig -s $i
66
67		if [ $? -eq 1 ]; then
68			state="down"
69			ifconfig $i up
70			sleep 1
71		fi
72
73		for j in $addrs; do
74
75			echo "Request: ifconfig $i link $j active"
76			ifconfig $i link $j active
77
78			if [ ! $? -eq 0 ]; then
79				fail=1
80			fi
81
82			if [ -z "$(ifconfig $i | grep $j)" ]; then
83				fail=1
84			fi
85
86			sleep 0.5
87		done
88
89		# From the ifconfig(8) manual page:
90		#
91		# "You may not delete the active address from an interface.
92		#  You must activate some other address, first."
93		#
94		ifconfig $i link $addr active
95		echo "Restored the link address of $i to $addr"
96		sleep 0.5
97
98		for j in $addrs; do
99			echo "Request: ifconfig $i link $j delete"
100			ifconfig $i link $j delete
101			sleep 0.5
102		done
103
104		ifconfig $i $state
105		echo "Restored state of $i to $state"
106	done
107
108	/bin/sh /etc/rc.d/hostapd restart >/dev/null 2>&1
109	/bin/sh /etc/rc.d/wpa_supplicant restart >/dev/null 2>&1
110
111	if [ $fail -eq 1 ]; then
112		atf_fail "Failed to set link addresses"
113	fi
114
115	atf_pass
116}
117
118atf_init_test_cases() {
119	atf_add_test_case repeated_link_addr
120}
121