1# $NetBSD: t_tap.sh,v 1.5 2020/06/25 18:30:42 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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27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28# POSSIBILITY OF SUCH DAMAGE.
29#
30taps="/tmp/taps"
31
32atf_test_case manytaps cleanup
33manytaps_head() {
34	atf_set "require.user" "root"
35	atf_set "descr" "Test creating many, many tap(4)'s (PR kern/55417)"
36}
37
38manytaps_body() {
39
40	atf_skip "The test causes a panic (PR kern/55417)"
41	seq 65535 65000 > $taps # Try to avoid stalling automated runs.
42
43	while read tap; do
44
45		ifconfig "tap$tap"
46
47		if [ $? -eq 0 ]; then
48			echo "Skipping existing tap$tap"
49			continue
50		fi
51
52		ifconfig "tap$tap" create
53		echo "Created tap$tap"
54
55	done < $taps
56}
57
58manytaps_cleanup() {
59
60	if [ -f $taps ]; then
61
62		while read tap; do
63
64			ifconfig "tap$tap"
65
66			if [ $? -eq 0 ]; then
67				ifconfig "tap$tap" destroy
68				echo "Destroyed tap$tap"
69			fi
70
71		done < $taps
72
73		rm $taps
74	fi
75}
76
77atf_test_case overflow cleanup
78overflow_head() {
79	atf_set "require.user" "root"
80	atf_set "descr" "Test creating a tap(4) with a " \
81		"negative device number (PR kern/53546)"
82}
83
84overflow_body() {
85	atf_skip "The test causes a panic (PR kern/53546)"
86	ifconfig tap99999 create
87}
88
89overflow_cleanup() {
90
91	ifconfig tap99999
92
93	if [ $? -eq 0 ]; then
94		ifconfig tap99999 destroy
95	fi
96}
97
98atf_init_test_cases() {
99	atf_add_test_case manytaps
100	atf_add_test_case overflow
101}
102