#! /usr/bin/atf-sh
#	$NetBSD: net_common.sh,v 1.18.2.4 2018/02/26 00:41:13 snj Exp $
#
# Copyright (c) 2016 Internet Initiative Japan Inc.
# All rights reserved.
#
# 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.
#

#
# Common utility functions for tests/net
#

HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so \
    RUMPHIJACK=path=/rump,socket=all:nolocal,sysctl=yes"
ONEDAYISH="(23h5[0-9]m|1d0h0m)[0-9]+s ?"

extract_new_packets()
{
	local bus=$1
	local old=./.__old

	if [ ! -f $old ]; then
		old=/dev/null
	fi

	shmif_dumpbus -p - $bus 2>/dev/null| \
	    tcpdump -n -e -r - 2>/dev/null > ./.__new
	diff -u $old ./.__new |grep '^+' |cut -d '+' -f 2 > ./.__diff
	mv -f ./.__new ./.__old
	cat ./.__diff
}

check_route()
{
	local target=$1
	local gw=$2
	local flags=${3:-\.\+}
	local ifname=${4:-\.\+}

	target=$(echo $target |sed 's/\./\\./g')
	if [ "$gw" = "" ]; then
		gw=".+"
	else
		gw=$(echo $gw |sed 's/\./\\./g')
	fi

	atf_check -s exit:0 -e ignore \
	    -o match:"^$target +$gw +$flags +- +- +.+ +$ifname" \
	    rump.netstat -rn
}

check_route_flags()
{

	check_route "$1" "" "$2" ""
}

check_route_gw()
{

	check_route "$1" "$2" "" ""
}

check_route_no_entry()
{
	local target=$(echo $1 |sed 's/\./\\./g')

	atf_check -s exit:0 -e ignore -o not-match:"^$target" \
	    rump.netstat -rn
}

get_linklocal_addr()
{

	export RUMP_SERVER=${1}
	rump.ifconfig ${2} inet6 |
	    awk "/fe80/ {sub(/%$2/, \"\"); sub(/\\/[0-9]*/, \"\"); print \$2;}"
	unset RUMP_SERVER

	return 0
}

get_macaddr()
{

	env RUMP_SERVER=${1} \
	    rump.ifconfig ${2} |awk '/address/ {print $2;}'
}

HTTPD_PID=./.__httpd.pid
start_httpd()
{
	local sock=$1
	local ip=$2
	local backup=$RUMP_SERVER

	export RUMP_SERVER=$sock

	# start httpd in daemon mode
	atf_check -s exit:0 env LD_PRELOAD=/usr/lib/librumphijack.so \
	    /usr/libexec/httpd -P $HTTPD_PID -i $ip -b -s $(pwd)

	export RUMP_SERVER=$backup

	sleep 3
}

stop_httpd()
{

	if [ -f $HTTPD_PID ]; then
		kill -9 $(cat $HTTPD_PID)
		rm -f $HTTPD_PID
		sleep 1
	fi
}

NC_PID=./.__nc.pid
start_nc_server()
{
	local sock=$1
	local port=$2
	local outfile=$3
	local proto=${4:-ipv4}
	local backup=$RUMP_SERVER
	local pid= opts=

	export RUMP_SERVER=$sock

	if [ $proto = ipv4 ]; then
		opts="-l -4"
	else
		opts="-l -6"
	fi

	env LD_PRELOAD=/usr/lib/librumphijack.so \
	    nc $opts $port > $outfile &
	pid=$!
	echo $pid > $NC_PID

	if [ $proto = ipv4 ]; then
		$DEBUG && rump.netstat -a -f inet
	else
		$DEBUG && rump.netstat -a -f inet6
	fi

	export RUMP_SERVER=$backup

	sleep 1
}

stop_nc_server()
{

	if [ -f $NC_PID ]; then
		kill -9 $(cat $NC_PID)
		rm -f $NC_PID
		sleep 1
	fi
}

BASIC_LIBS="-lrumpnet -lrumpnet_net -lrumpnet_netinet \
    -lrumpnet_shmif -lrumpdev"
FS_LIBS="$BASIC_LIBS -lrumpvfs -lrumpfs_ffs"
CRYPTO_LIBS="$BASIC_LIBS -lrumpvfs -lrumpdev_opencrypto \
    -lrumpkern_z -lrumpkern_crypto"
NPF_LIBS="$BASIC_LIBS -lrumpvfs -lrumpdev_bpf -lrumpnet_npf"

# We cannot keep variables between test phases, so need to store in files
_rump_server_socks=./.__socks
_rump_server_ifaces=./.__ifaces
_rump_server_buses=./.__buses

DEBUG_SYSCTL_ENTRIES="net.inet.arp.debug net.inet6.icmp6.nd6_debug \
    net.inet.ipsec.debug"

IPSEC_KEY_DEBUG=${IPSEC_KEY_DEBUG:-false}

_rump_server_start_common()
{
	local sock=$1
	local libs=
	local backup=$RUMP_SERVER

	shift 1
	libs="$*"

	atf_check -s exit:0 rump_server $libs $sock

	if $DEBUG; then
		# Enable debugging features in the kernel
		export RUMP_SERVER=$sock
		for ent in $DEBUG_SYSCTL_ENTRIES; do
			if rump.sysctl -q $ent; then
				atf_check -s exit:0 rump.sysctl -q -w $ent=1
			fi
		done
		export RUMP_SERVER=$backup
	fi
	if $IPSEC_KEY_DEBUG; then
		# Enable debugging features in the kernel
		export RUMP_SERVER=$sock
		if rump.sysctl -q net.key.debug; then
			atf_check -s exit:0 \
			    rump.sysctl -q -w net.key.debug=0xffff
		fi
		export RUMP_SERVER=$backup
	fi

	echo $sock >> $_rump_server_socks
	$DEBUG && cat $_rump_server_socks
}

rump_server_start()
{
	local sock=$1
	local _libs=
	local libs="$BASIC_LIBS"

	shift 1
	_libs="$*"

	for lib in $_libs; do
		libs="$libs -lrumpnet_$lib"
	done

	_rump_server_start_common $sock $libs

	return 0
}

rump_server_fs_start()
{
	local sock=$1
	local _libs=
	local libs="$FS_LIBS"

	shift 1
	_libs="$*"

	for lib in $_libs; do
		libs="$libs -lrumpnet_$lib"
	done

	_rump_server_start_common $sock $libs

	return 0
}

rump_server_crypto_start()
{
	local sock=$1
	local _libs=
	local libs="$CRYPTO_LIBS"

	shift 1
	_libs="$*"

	for lib in $_libs; do
		libs="$libs -lrumpnet_$lib"
	done

	_rump_server_start_common $sock $libs

	return 0
}

rump_server_npf_start()
{
	local sock=$1
	local _libs=
	local libs="$NPF_LIBS"

	shift 1
	_libs="$*"

	for lib in $_libs; do
		libs="$libs -lrumpnet_$lib"
	done

	_rump_server_start_common $sock $libs

	return 0
}

rump_server_add_iface()
{
	local sock=$1
	local ifname=$2
	local bus=$3
	local backup=$RUMP_SERVER

	export RUMP_SERVER=$sock
	atf_check -s exit:0 rump.ifconfig $ifname create
	atf_check -s exit:0 rump.ifconfig $ifname linkstr $bus
	export RUMP_SERVER=$backup

	echo $sock $ifname >> $_rump_server_ifaces
	$DEBUG && cat $_rump_server_ifaces

	echo $bus >> $_rump_server_buses
	cat $_rump_server_buses |sort -u >./.__tmp
	mv -f ./.__tmp $_rump_server_buses
	$DEBUG && cat $_rump_server_buses

	return 0
}

rump_server_destroy_ifaces()
{
	local backup=$RUMP_SERVER

	$DEBUG && cat $_rump_server_ifaces

	# Try to dump states before destroying interfaces
	for sock in $(cat $_rump_server_socks); do
		export RUMP_SERVER=$sock
		atf_check -s exit:0 -o ignore rump.ifconfig
		atf_check -s exit:0 -o ignore rump.netstat -nr
		# XXX still need hijacking
		atf_check -s exit:0 -o ignore $HIJACKING rump.netstat -i -a
		atf_check -s exit:0 -o ignore rump.arp -na
		atf_check -s exit:0 -o ignore rump.ndp -na
		atf_check -s exit:0 -o ignore $HIJACKING ifmcstat
	done

	# XXX using pipe doesn't work. See PR bin/51667
	#cat $_rump_server_ifaces | while read sock ifname; do
	while read sock ifname; do
		export RUMP_SERVER=$sock
		if rump.ifconfig -l |grep -q $ifname; then
			atf_check -s exit:0 rump.ifconfig $ifname destroy
		fi
		atf_check -s exit:0 -o ignore rump.ifconfig
	done < $_rump_server_ifaces
	export RUMP_SERVER=$backup

	return 0
}

rump_server_halt_servers()
{
	local backup=$RUMP_SERVER

	$DEBUG && cat $_rump_server_socks
	for sock in $(cat $_rump_server_socks); do
		env RUMP_SERVER=$sock rump.halt
	done
	export RUMP_SERVER=$backup

	return 0
}

rump_server_dump_servers()
{
	local backup=$RUMP_SERVER

	$DEBUG && cat $_rump_server_socks
	for sock in $(cat $_rump_server_socks); do
		echo "### Dumping $sock"
		export RUMP_SERVER=$sock
		rump.ifconfig
		rump.netstat -nr
		# XXX still need hijacking
		$HIJACKING rump.netstat -i -a
		rump.arp -na
		rump.ndp -na
		$HIJACKING ifmcstat
		$HIJACKING dmesg
	done
	export RUMP_SERVER=$backup

	if [ -f rump_server.core ]; then
		gdb -ex bt /usr/bin/rump_server rump_server.core
		strings rump_server.core |grep panic
	fi
	return 0
}

rump_server_dump_buses()
{

	if [ ! -f $_rump_server_buses ]; then
		return 0
	fi

	$DEBUG && cat $_rump_server_buses
	for bus in $(cat $_rump_server_buses); do
		echo "### Dumping $bus"
		shmif_dumpbus -p - $bus 2>/dev/null| tcpdump -n -e -r -
	done
	return 0
}

cleanup()
{

	rump_server_halt_servers
}

dump()
{

	rump_server_dump_servers
	rump_server_dump_buses
}

skip_if_qemu()
{
	if sysctl machdep.cpu_brand 2>/dev/null | grep QEMU >/dev/null 2>&1
	then
	    atf_skip "unreliable under qemu, skip until PR kern/43997 fixed"
	fi
}

test_create_destroy_common()
{
	local sock=$1
	local ifname=$2
	local test_address=${3:-false}
	local ipv4="10.0.0.1/24"
	local ipv6="fc00::1"

	export RUMP_SERVER=$sock

	atf_check -s exit:0 rump.ifconfig $ifname create
	atf_check -s exit:0 rump.ifconfig $ifname destroy

	atf_check -s exit:0 rump.ifconfig $ifname create
	atf_check -s exit:0 rump.ifconfig $ifname up
	atf_check -s exit:0 rump.ifconfig $ifname down
	atf_check -s exit:0 rump.ifconfig $ifname destroy

	# Destroy while UP
	atf_check -s exit:0 rump.ifconfig $ifname create
	atf_check -s exit:0 rump.ifconfig $ifname up
	atf_check -s exit:0 rump.ifconfig $ifname destroy

	if ! $test_address; then
		return
	fi

	# With an IPv4 address
	atf_check -s exit:0 rump.ifconfig $ifname create
	atf_check -s exit:0 rump.ifconfig $ifname inet $ipv4
	atf_check -s exit:0 rump.ifconfig $ifname up
	atf_check -s exit:0 rump.ifconfig $ifname destroy

	# With an IPv6 address
	atf_check -s exit:0 rump.ifconfig $ifname create
	atf_check -s exit:0 rump.ifconfig $ifname inet6 $ipv6
	atf_check -s exit:0 rump.ifconfig $ifname up
	atf_check -s exit:0 rump.ifconfig $ifname destroy

	unset RUMP_SERVER
}
#	$NetBSD: t_basic.sh,v 1.6.2.1 2017/10/21 19:43:55 snj Exp $
#
# Copyright (c) 2017 Internet Initiative Japan Inc.
# All rights reserved.
#
# 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.
#

SOCK_CLIENT=unix://carp_client
SOCK_MASTER=unix://carp_master
SOCK_BACKUP=unix://carp_backup
BUS=bus_carp
TIMEOUT=3

DEBUG=${DEBUG:-false}

IP_CLIENT=10.1.1.240
IP_MASTER=10.1.1.1
IP_BACKUP=10.1.1.2
IP_CARP=10.1.1.100

setup_carp()
{
	local sock=$1
	local master=$2
	local carpdevip=$3
	local carpif= ip= advskew=

	if $master; then
		carpif=carp0
		ip=$IP_MASTER
		advskew=0
	else
		carpif=carp1
		ip=$IP_BACKUP
		advskew=200
	fi

	export RUMP_SERVER=$sock
	if $DEBUG; then
		atf_check -s exit:0 -o match:'0.->.1' \
		    rump.sysctl -w net.inet.carp.log=1
	fi
	atf_check -s exit:0 rump.ifconfig $carpif create
	if [ $carpdevip = yes ]; then
		atf_check -s exit:0 rump.ifconfig shmif0 $ip/24 up
		atf_check -s exit:0 rump.ifconfig $carpif \
		    vhid 175 advskew $advskew advbase 1 pass s3cret \
		    $IP_CARP netmask 255.255.255.0
	else
		atf_check -s exit:0 rump.ifconfig shmif0 up
		atf_check -s exit:0 rump.ifconfig $carpif \
		    vhid 175 advskew $advskew advbase 1 pass s3cret \
		    carpdev shmif0 $IP_CARP netmask 255.255.255.0
	fi
	atf_check -s exit:0 rump.ifconfig -w 10
}

wait_handover()
{
	local i=0

	export RUMP_SERVER=$SOCK_CLIENT

	while [ $i -ne 5 ]; do
		$DEBUG && echo "Trying ping $IP_CARP"
		rump.ping -n -w 1 -c 1 $IP_CARP >/dev/null
		if [ $? = 0 ]; then
			$DEBUG && echo "Passed ping $IP_CARP"
			break;
		fi
		$DEBUG && echo "Failed ping $IP_CARP"
		i=$((i + 1))
	done

	if [ $i -eq 5 ]; then
		atf_fail "Failed to failover (5 sec)"
	fi
}

test_carp_handover_ipv4()
{
	local op=$1
	local carpdevip=$2

	rump_server_start $SOCK_CLIENT
	rump_server_start $SOCK_MASTER
	rump_server_start $SOCK_BACKUP

	rump_server_add_iface $SOCK_CLIENT shmif0 $BUS
	rump_server_add_iface $SOCK_MASTER shmif0 $BUS
	rump_server_add_iface $SOCK_BACKUP shmif0 $BUS

	setup_carp $SOCK_MASTER true $carpdevip
	setup_carp $SOCK_BACKUP false $carpdevip

	export RUMP_SERVER=$SOCK_CLIENT
	atf_check -s exit:0 rump.ifconfig shmif0 $IP_CLIENT/24 up
	atf_check -s exit:0 rump.ifconfig -w 10

	if [ $carpdevip = yes ]; then
		# Check that the primary addresses are up
		atf_check -s exit:0 -o ignore \
		    rump.ping -n -w $TIMEOUT -c 1 $IP_MASTER
		atf_check -s exit:0 -o ignore \
		    rump.ping -n -w $TIMEOUT -c 1 $IP_BACKUP
	fi

	# Give carp a while to croak
	sleep 4

	# Check state
	export RUMP_SERVER=$SOCK_MASTER
	$DEBUG && rump.ifconfig
	atf_check -s exit:0 -o match:'carp: MASTER carpdev shmif0' \
	    rump.ifconfig carp0
	export RUMP_SERVER=$SOCK_BACKUP
	$DEBUG && rump.ifconfig
	atf_check -s exit:0 -o match:'carp: BACKUP carpdev shmif0' \
	    rump.ifconfig carp1
	export RUMP_SERVER=$SOCK_CLIENT

	# Check that the shared IP works
	atf_check -s exit:0 -o ignore \
	    rump.ping -n -w $TIMEOUT -c 1 $IP_CARP

	# KILLING SPREE
	if [ $op = halt ]; then
		env RUMP_SERVER=$SOCK_MASTER rump.halt
	elif [ $op = ifdown ]; then
		env RUMP_SERVER=$SOCK_MASTER rump.ifconfig shmif0 down
	fi
	sleep 1

	# Check that primary is now dead
	if [ $carpdevip = yes ]; then
		atf_check -s not-exit:0 -o ignore \
		    rump.ping -n -w $TIMEOUT -c 1 $IP_MASTER
	else
		# XXX how to check?
	fi

	# Do it in installments. carp will cluck meanwhile
	wait_handover

	# Check state
	export RUMP_SERVER=$SOCK_BACKUP
	$DEBUG && rump.ifconfig
	atf_check -s exit:0 -o match:'carp: MASTER carpdev shmif0' \
	    rump.ifconfig carp1

	if [ $op = ifdown ]; then
		rump_server_destroy_ifaces
	fi
}

IP6_CLIENT=fd00:1::240
IP6_MASTER=fd00:1::1
IP6_BACKUP=fd00:1::2
IP6_CARP=fd00:1::100

setup_carp6()
{
	local sock=$1
	local master=$2
	local carpdevip=$3
	local carpif= ip= advskew=

	if $master; then
		carpif=carp0
		ip=$IP6_MASTER
		advskew=0
	else
		carpif=carp1
		ip=$IP6_BACKUP
		advskew=200
	fi

	export RUMP_SERVER=$sock
	if $DEBUG; then
		atf_check -s exit:0 -o match:'0.->.1' \
		    rump.sysctl -w net.inet.carp.log=1
	fi
	atf_check -s exit:0 rump.ifconfig $carpif create
	if [ $carpdevip = yes ]; then
		atf_check -s exit:0 rump.ifconfig shmif0 inet6 $ip up
		atf_check -s exit:0 rump.ifconfig $carpif inet6 \
		    vhid 175 advskew $advskew advbase 1 pass s3cret $IP6_CARP
	else
		atf_check -s exit:0 rump.ifconfig shmif0 up
		atf_check -s exit:0 rump.ifconfig $carpif inet6 \
		    vhid 175 advskew $advskew advbase 1 pass s3cret \
		    carpdev shmif0 $IP6_CARP
	fi
	atf_check -s exit:0 rump.ifconfig -w 10
}

wait_carp6_handover()
{
	local i=0

	export RUMP_SERVER=$SOCK_CLIENT

	while [ $i -ne 5 ]; do
		$DEBUG && echo "Trying ping6 $IP6_CARP"
		rump.ping6 -n -X 1 -c 1 $IP6_CARP >/dev/null
		if [ $? = 0 ]; then
			$DEBUG && echo "Passed ping $IP6_CARP"
			break;
		fi
		$DEBUG && echo "Failed ping6 $IP6_CARP"
		i=$((i + 1))
	done

	if [ $i -eq 5 ]; then
		atf_fail "Failed to failover (5 sec)"
	fi
}

test_carp_handover_ipv6()
{
	local op=$1
	local carpdevip=$2

	rump_server_start $SOCK_CLIENT netinet6
	rump_server_start $SOCK_MASTER netinet6
	rump_server_start $SOCK_BACKUP netinet6

	rump_server_add_iface $SOCK_CLIENT shmif0 $BUS
	rump_server_add_iface $SOCK_MASTER shmif0 $BUS
	rump_server_add_iface $SOCK_BACKUP shmif0 $BUS

	setup_carp6 $SOCK_MASTER true $carpdevip
	setup_carp6 $SOCK_BACKUP false $carpdevip

	export RUMP_SERVER=$SOCK_CLIENT
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_CLIENT up
	atf_check -s exit:0 rump.ifconfig -w 10

	if [ $carpdevip = yes ]; then
		# Check that the primary addresses are up
		atf_check -s exit:0 -o ignore \
		    rump.ping6 -n -X $TIMEOUT -c 1 $IP6_MASTER
		atf_check -s exit:0 -o ignore \
		    rump.ping6 -n -X $TIMEOUT -c 1 $IP6_BACKUP
	fi

	# Give carp a while to croak
	sleep 4

	# Check state
	export RUMP_SERVER=$SOCK_MASTER
	$DEBUG && rump.ifconfig
	atf_check -s exit:0 -o match:'carp: MASTER carpdev shmif0' \
	    rump.ifconfig carp0
	export RUMP_SERVER=$SOCK_BACKUP
	$DEBUG && rump.ifconfig
	atf_check -s exit:0 -o match:'carp: BACKUP carpdev shmif0' \
	    rump.ifconfig carp1
	export RUMP_SERVER=$SOCK_CLIENT

	# Check that the shared IP works
	atf_check -s exit:0 -o ignore \
	    rump.ping6 -n -X $TIMEOUT -c 1 $IP6_CARP

	# KILLING SPREE
	if [ $op = halt ]; then
		env RUMP_SERVER=$SOCK_MASTER rump.halt
	elif [ $op = ifdown ]; then
		env RUMP_SERVER=$SOCK_MASTER rump.ifconfig shmif0 down
	fi
	sleep 1

	# Check that primary is now dead
	if [ $carpdevip = yes ]; then
		atf_check -s not-exit:0 -o ignore \
		    rump.ping6 -n -X $TIMEOUT -c 1 $IP6_MASTER
	else
		# XXX how to check?
	fi

	# Do it in installments. carp will cluck meanwhile
	wait_carp6_handover

	# Check state
	export RUMP_SERVER=$SOCK_BACKUP
	$DEBUG && rump.ifconfig
	atf_check -s exit:0 -o match:'carp: MASTER carpdev shmif0' \
	    rump.ifconfig carp1

	if [ $op = ifdown ]; then
		rump_server_destroy_ifaces
	fi
}

add_test_case()
{
	local ipproto=$1
	local halt=$2
	local carpdevip=$3
	local expected_failure_code=

	name="carp_handover_${ipproto}_${halt}"
	desc="Tests for CARP (${ipproto}) handover on ${halt}"
	if [ $carpdevip = yes ]; then
		name="${name}_carpdevip"
		desc="$desc with carpdev IP"
	else
		name="${name}_nocarpdevip"
		desc="$desc without carpdev IP"
	fi
	if [ $ipproto = ipv6 -a $carpdevip = no ]; then
		expected_failure_code="atf_expect_fail 'nd6 needs to be fixed';"
	fi

	atf_test_case ${name} cleanup
	eval "
	    ${name}_head() {
	        atf_set descr \"$desc\"
	        atf_set require.progs rump_server
	    }
	    ${name}_body() {
	        $expected_failure_code
	        test_carp_handover_${ipproto} $halt $carpdevip
	        if [ $halt != halt ]; then
	             rump_server_destroy_ifaces
	        fi
	    }
	    ${name}_cleanup() {
	        \$DEBUG && dump
	        cleanup
	    }
	"
	atf_add_test_case ${name}
}

atf_init_test_cases()
{
	local proto= halt= carpdevip=

	for proto in ipv4 ipv6; do
		for halt in halt ifdown; do
			for carpdevip in yes no; do
				add_test_case $proto $halt $carpdevip
			done
		done
	done
}
