xref: /src/tests/usr.bin/shmif_pcapin/t_basic.sh

#	$NetBSD: t_basic.sh,v 1.1 2024/09/02 05:16:37 ozaki-r Exp $
#
# Copyright (c) 2017-2018 Internet Initiative Japan Inc.
# Copyright (c) 2011 The NetBSD Foundation, Inc.
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SOCK=unix://commsock
BUS=bus0

unpack_file()
{

	atf_check -s exit:0 uudecode $(atf_get_srcdir)/${1}.bz2.uue
	atf_check -s exit:0 bunzip2 -f ${1}.bz2
}

atf_test_case pcap cleanup

pcap_head()
{

	atf_set "descr" "Write frames from pcap(3) file to shmif(4) interface"
}

pcap_body()
{
	unpack_file d_pcap.in
	unpack_file d_pcap.out

	rump_server_npf_start ${SOCK} # need librumpdev_bpf
	rump_server_add_iface ${SOCK} shmif0 ${BUS}

	export RUMP_SERVER=${SOCK}
	export LD_PRELOAD=/usr/lib/librumphijack.so
	export RUMPHIJACK=path=/rump,socket=all:nolocal,sysctl=yes,,blanket=/dev/bpf

	atf_check -s exit:0 rump.ifconfig shmif0 up

	# Capture frames on shmif0 to examine later.
	tcpdump -c 58 -eni shmif0 -w shmif0.in.pcap &
	sleep 1 # give shmif0 a change to turn into promiscuous mode
	# Write frames to the bus.
	atf_check -s exit:0 -o ignore shmif_pcapin d_pcap.in ${BUS}
	wait # for tcpdump to exit

	# Check if written frames surely arrives at shmif0.
	atf_check -s exit:0 -o match:"input: 58 packets, 5684 bytes" rump.ifconfig -v shmif0
	# Check if frames captured on shmif0 are expected ones.
	atf_check -s exit:0 -o file:d_pcap.out -e ignore tcpdump -entr shmif0.in.pcap

	unset LD_PRELOAD
	unset RUMP_SERVER
}

pcap_cleanup()
{

	$DEBUG && dump
	cleanup
}


atf_init_test_cases()
{

	atf_add_test_case pcap
}