passt/test/udp/passt

# SPDX-License-Identifier: AGPL-3.0-or-later
#
# PASST - Plug A Simple Socket Transport
#  for qemu/UNIX domain socket mode
#
# PASTA - Pack A Subtle Tap Abstraction
#  for network namespace/tap device mode
#
# test/udp/passt - Check UDP functionality in passt mode
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>

onlyfor	passt
gtools	nc tee grep cat ip jq md5sum cut
htools	printf dd nc tee grep cat ip jq md5sum cut

test	UDP/IPv4: host to guest
temp	TEMP
temp	NC_PID
guestb	(nc -u -q1 -4 -l 10001 & echo $! > __NC_PID__) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
host	dd if=/dev/urandom bs=1k count=5 > __TEMP_BIG__ && printf "\nEND_OF_TEST\n" >> __TEMP__
host	cat __TEMP__ | nc -u -q1 -N 127.0.0.1 10001
guestw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]

test	UDP/IPv4: guest to host
host	:> __TEMP__
hostb	(nc -u -q1 -4 -l 10003 & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
guest	cat test.bin | nc -u -q1 -N __GW__ 10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]

test	UDP/IPv6: host to guest
guestb	(nc -u -q1 -6 -l 10001 & echo $! > nc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat nc.pid))
sleep	1
host	cat __TEMP__ | nc -u -q1 -N ::1 10001
guestw
gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]

test	UDP/IPv6: guest to host
host	:> __TEMP__
hostb	(nc -u -q1 -6 -l 10003 & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
gout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
gout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
guest	cat test.bin | nc -u -q1 -N __GW6__%__IFNAME__ 10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]