xref: /src/tests/net/if_tap/t_tap.sh

#	$NetBSD: t_tap.sh,v 1.11.8.1 2025/08/02 05:58:11 perseant Exp $
#
# Copyright (c) 2016 Internet Initiative Japan Inc.
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SOCK_LOCAL=unix://commsock1
SOCK_REMOTE=unix://commsock2
BUS=bus1
IP4_LOCAL=10.0.0.1
IP4_TAP=10.0.0.2
IP4_REMOTE=10.0.0.3
IP6_LOCAL=fc00::1
IP6_TAP=fc00::2
IP6_REMOTE=fc00::3
TAP_PID=./.__tap.pid

DEBUG=${DEBUG:-false}
TIMEOUT=1

atf_test_case tap_create_destroy cleanup
tap_create_destroy_head()
{

	atf_set "descr" "tests of creation and deletion of tap interface"
	atf_set "require.progs" "rump_server"
}

tap_create_destroy_body()
{

	rump_server_fs_start $SOCK_LOCAL netinet6 tap

	test_create_destroy_common $SOCK_LOCAL tap0 true
}

tap_create_destroy_cleanup()
{

	$DEBUG && dump
	cleanup
}

atf_test_case tap_stand_alone cleanup
tap_create_destroy_head()
{

	atf_set "descr" "tests of alone tap interface"
	atf_set "require.progs" "rump_server"
}

tap_stand_alone_body()
{

	rump_server_fs_start $SOCK_LOCAL netinet6 tap
	rump_server_fs_start $SOCK_REMOTE netinet6 tap

	rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
	rump_server_add_iface $SOCK_REMOTE shmif0 $BUS

	export RUMP_SERVER=${SOCK_LOCAL}
	atf_check -s exit:0 rump.ifconfig shmif0 $IP4_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig -w 10

	export RUMP_SERVER=${SOCK_REMOTE}

	atf_check -s exit:0 rump.ifconfig shmif0 $IP4_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig -w 10

	atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4_LOCAL
	atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6_LOCAL

	export RUMP_SERVER=${SOCK_LOCAL}
	atf_check -s exit:0 rump.ifconfig shmif0 $IP4_LOCAL delete
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_LOCAL delete
	rump_server_add_iface $SOCK_LOCAL tap0
	atf_check -s exit:0 rump.ifconfig tap0 $IP4_TAP
	atf_check -s exit:0 rump.ifconfig tap0 inet6 $IP6_TAP
	atf_check -s exit:0 rump.ifconfig tap0 up
	atf_check -s exit:0 rump.ifconfig -w 10

	export RUMP_SERVER=${SOCK_REMOTE}
	# Cannot reach to an alone tap
	atf_check -s not-exit:0 -o ignore -e ignore \
	    rump.ping6 -n -X $TIMEOUT -c 1 $IP6_TAP
	atf_check -s not-exit:0 -o ignore -e ignore \
	    rump.ping -n -w $TIMEOUT -c 1 $IP4_TAP

	rump_server_destroy_ifaces
}

tap_stand_alone_cleanup()
{

	$DEBUG && dump
	cleanup
}

atf_test_case tap_bridged cleanup
tap_bridged_head()
{

	atf_set "descr" "tests of alone tap interface"
	atf_set "require.progs" "rump_server"
}

tap_bridged_body()
{
	local src="$(atf_get_srcdir)"

	rump_server_fs_start $SOCK_LOCAL netinet6 tap bridge
	rump_server_fs_start $SOCK_REMOTE netinet6 tap

	rump_server_add_iface $SOCK_LOCAL shmif0 $BUS
	rump_server_add_iface $SOCK_REMOTE shmif0 $BUS

	export RUMP_SERVER=${SOCK_LOCAL}

	atf_check -s exit:0 rump.ifconfig shmif0 $IP4_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_LOCAL
	atf_check -s exit:0 rump.ifconfig shmif0 up
	rump_server_add_iface $SOCK_LOCAL tap0
	atf_check -s exit:0 rump.ifconfig tap0 $IP4_TAP
	atf_check -s exit:0 rump.ifconfig tap0 inet6 $IP6_TAP
	atf_check -s exit:0 rump.ifconfig tap0 up

	rump_server_add_iface $SOCK_LOCAL bridge0
	atf_check -s exit:0 rump.ifconfig bridge0 up
	export LD_PRELOAD=/usr/lib/librumphijack.so
	atf_check -s exit:0 brconfig bridge0 add shmif0
	atf_check -s exit:0 brconfig bridge0 add tap0
	unset LD_PRELOAD

	atf_check -s exit:0 rump.ifconfig -w 10

	export RUMP_SERVER=${SOCK_REMOTE}

	atf_check -s exit:0 rump.ifconfig shmif0 $IP4_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 inet6 $IP6_REMOTE
	atf_check -s exit:0 rump.ifconfig shmif0 up
	atf_check -s exit:0 rump.ifconfig -w 10

	# shmif0 on the server bridge is active, we expect this to work
	atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4_LOCAL
	atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6_LOCAL

	# The tap is not open, we expect this to fail
	atf_check -s not-exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4_TAP
	atf_check -s not-exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6_TAP

	# Open the tap on the server
	export RUMP_SERVER=${SOCK_LOCAL}
	atf_check -s exit:0 "$src"/rump_open_tap /dev/tap0 $TAP_PID
	atf_check -s exit:0 rump.ifconfig -w 10

	# Now we can ping the tap address
	export RUMP_SERVER=${SOCK_REMOTE}
	atf_check -s exit:0 -o ignore rump.ping -n -w $TIMEOUT -c 1 $IP4_TAP
	atf_check -s exit:0 -o ignore rump.ping6 -n -X $TIMEOUT -c 1 $IP6_TAP

	rump_server_destroy_ifaces
}

tap_bridged_cleanup()
{

        if [ -f $TAP_PID ]; then
		kill -9 $(cat $TAP_PID)
		rm -f $TAP_PID
		sleep 1
	fi
	$DEBUG && dump
	cleanup
}

atf_init_test_cases()
{

	atf_add_test_case tap_create_destroy
	atf_add_test_case tap_stand_alone
	atf_add_test_case tap_bridged
}