Module Name:    src
Committed By:   jruoho
Date:           Tue Jun 30 11:48:20 UTC 2020

Modified Files:
        src/distrib/sets/lists/tests: mi
        src/tests/sbin/ifconfig: Makefile
Added Files:
        src/tests/sbin/ifconfig: t_repeated_link_addr.sh t_repeated_mtu.sh

Log Message:
Add a couple of tests for sequential ifconfig(8) options, incl. PR kern/41912.


To generate a diff of this commit:
cvs rdiff -u -r1.863 -r1.864 src/distrib/sets/lists/tests/mi
cvs rdiff -u -r1.8 -r1.9 src/tests/sbin/ifconfig/Makefile
cvs rdiff -u -r0 -r1.1 src/tests/sbin/ifconfig/t_repeated_link_addr.sh \
    src/tests/sbin/ifconfig/t_repeated_mtu.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/distrib/sets/lists/tests/mi
diff -u src/distrib/sets/lists/tests/mi:1.863 src/distrib/sets/lists/tests/mi:1.864
--- src/distrib/sets/lists/tests/mi:1.863	Mon Jun 29 23:44:01 2020
+++ src/distrib/sets/lists/tests/mi	Tue Jun 30 11:48:20 2020
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.863 2020/06/29 23:44:01 riastradh Exp $
+# $NetBSD: mi,v 1.864 2020/06/30 11:48:20 jruoho Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -4001,6 +4001,8 @@
 ./usr/tests/sbin/ifconfig/t_capabilities	tests-sbin-tests	compattestfile,atf
 ./usr/tests/sbin/ifconfig/t_nonexistent		tests-sbin-tests	compattestfile,atf
 ./usr/tests/sbin/ifconfig/t_random_garbage	tests-sbin-tests	compattestfile,atf
+./usr/tests/sbin/ifconfig/t_repeated_link_addr	tests-sbin-tests	compattestfile,atf
+./usr/tests/sbin/ifconfig/t_repeated_mtu	tests-sbin-tests	compattestfile,atf
 ./usr/tests/sbin/ifconfig/t_repeated_scan	tests-sbin-tests	compattestfile,atf
 ./usr/tests/sbin/ifconfig/t_repeated_updown	tests-sbin-tests	compattestfile,atf
 ./usr/tests/sbin/ifconfig/t_tap			tests-sbin-tests	compattestfile,atf

Index: src/tests/sbin/ifconfig/Makefile
diff -u src/tests/sbin/ifconfig/Makefile:1.8 src/tests/sbin/ifconfig/Makefile:1.9
--- src/tests/sbin/ifconfig/Makefile:1.8	Sat Jun 27 13:53:43 2020
+++ src/tests/sbin/ifconfig/Makefile	Tue Jun 30 11:48:20 2020
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.8 2020/06/27 13:53:43 jruoho Exp $
+# $NetBSD: Makefile,v 1.9 2020/06/30 11:48:20 jruoho Exp $
 
 .include <bsd.own.mk>
 
@@ -8,6 +8,8 @@ TESTS_SH=	t_bridge \
 		t_capabilities \
 		t_nonexistent \
 		t_random_garbage \
+		t_repeated_link_addr \
+		t_repeated_mtu \
 		t_repeated_scan \
 		t_repeated_updown \
 		t_tap \

Added files:

Index: src/tests/sbin/ifconfig/t_repeated_link_addr.sh
diff -u /dev/null src/tests/sbin/ifconfig/t_repeated_link_addr.sh:1.1
--- /dev/null	Tue Jun 30 11:48:20 2020
+++ src/tests/sbin/ifconfig/t_repeated_link_addr.sh	Tue Jun 30 11:48:20 2020
@@ -0,0 +1,120 @@
+# $NetBSD: t_repeated_link_addr.sh,v 1.1 2020/06/30 11:48:20 jruoho Exp $
+#
+# Copyright (c) 2020 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# This code is derived from software contributed to The NetBSD Foundation
+# by Jukka Ruohonen.
+#
+# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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_test_case repeated_link_addr
+repeated_link_addr_head() {
+	atf_set "require.user" "root"
+	atf_set "descr" "Check with ifconfig(8) that " \
+		"setting link addresses for active interfaces " \
+		"does not cause a panic (PR kern/41912)"
+}
+
+repeated_link_addr_body() {
+
+	fail=0
+	addrs="00:11:00:00:00:00 \
+	       00:11:11:00:00:00 \
+	       00:11:11:11:00:00 \
+	       00:11:11:11:11:00 \
+	       00:00:11:00:00:00 \
+	       00:00:11:11:00:00 \
+	       00:00:11:11:11:00 \
+	       00:00:00:11:00:00 \
+	       00:00:00:11:11:00"
+
+	pkill -9 hostapd
+	pkill -9 wpa_supplicant
+
+	for i in $(ifconfig -l); do
+
+		state="up"
+		addr=$(ifconfig $i | grep "address")
+		addr=$(echo $addr | sed "s/address: //" | sed 's/ //')
+
+		if [ -z "$addr" ]; then
+			echo "Skipping $i"
+			continue
+		fi
+
+		ifconfig -s $i
+
+		if [ $? -eq 1 ]; then
+			state="down"
+			ifconfig $i up
+			sleep 1
+		fi
+
+		for j in $addrs; do
+
+			echo "Request: ifconfig $i link $j active"
+			ifconfig $i link $j active
+
+			if [ ! $? -eq 0 ]; then
+				fail=1
+			fi
+
+			if [ -z "$(ifconfig $i | grep $j)" ]; then
+				fail=1
+			fi
+
+			sleep 0.5
+		done
+
+		# From the ifconfig(8) manual page:
+		#
+		# "You may not delete the active address from an interface.
+		#  You must activate some other address, first."
+		#
+		ifconfig $i link $addr active
+		echo "Restored the link address of $i to $addr"
+		sleep 0.5
+
+		for j in $addrs; do
+			echo "Request: ifconfig $i link $j delete"
+			ifconfig $i link $j delete
+			sleep 0.5
+		done
+
+		ifconfig $i $state
+		echo "Restored state of $i to $state"
+	done
+
+	/bin/sh /etc/rc.d/hostapd restart >/dev/null 2>&1
+	/bin/sh /etc/rc.d/wpa_supplicant restart >/dev/null 2>&1
+
+	if [ $fail -eq 1 ]; then
+		atf_fail "Failed to set link addresses"
+	fi
+
+	atf_pass
+}
+
+atf_init_test_cases() {
+	atf_add_test_case repeated_link_addr
+}
Index: src/tests/sbin/ifconfig/t_repeated_mtu.sh
diff -u /dev/null src/tests/sbin/ifconfig/t_repeated_mtu.sh:1.1
--- /dev/null	Tue Jun 30 11:48:20 2020
+++ src/tests/sbin/ifconfig/t_repeated_mtu.sh	Tue Jun 30 11:48:20 2020
@@ -0,0 +1,65 @@
+# $NetBSD: t_repeated_mtu.sh,v 1.1 2020/06/30 11:48:20 jruoho Exp $
+#
+# Copyright (c) 2020 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# This code is derived from software contributed to The NetBSD Foundation
+# by Jukka Ruohonen.
+#
+# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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_test_case repeated_mtu
+repeated_mtu_head() {
+	atf_set "require.user" "root"
+	atf_set "descr" "Check with ifconfig(8) that setting MTUs works"
+}
+
+repeated_mtu_body() {
+
+	# This sequence covers both valid and invalid MTUs; we are
+	# only interested in testing that the system does not hang.
+	#
+	mtus=$(seq -10000 1000 90000)
+
+	for i in $(ifconfig -l); do
+
+		mtu=$(ifconfig $i | grep "mtu" | sed "s/.*mtu //")
+
+		if [ -z $mtu ]; then
+			echo "Skipping $i"
+			continue
+		fi
+
+		for j in $mtus; do
+			echo "Request: ifconfig $i mtu $j"
+			ifconfig $i mtu $j >/dev/null 2>&1
+		done
+
+		ifconfig $i mtu $mtu
+		echo "Restored the MTU of $i to $mtu"
+	done
+}
+
+atf_init_test_cases() {
+	atf_add_test_case repeated_mtu
+}

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