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>

gtools	socat tee grep cat ip jq md5sum cut
htools	printf dd socat tee grep cat ip jq md5sum cut

test	UDP/IPv4: host to guest
temp	TEMP
temp	SC_PID
guestb	(socat -u UDP4-LISTEN:10001 STDOUT & echo $! > __SC_PID__) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
host	dd if=/dev/urandom bs=1k count=5 > __TEMP__ && printf "\nEND_OF_TEST\n" >> __TEMP__
host	socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10001
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
hostb	(socat -u UDP4-LISTEN:10003,bind=127.0.0.1 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
guest	socat -u OPEN:test.bin UDP4:__GW__:10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]

test	UDP/IPv6: host to guest
guestb	(socat -u UDP6-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
sleep	1
host	socat -u OPEN:__TEMP__ UDP6:[::1]:10001
guestw
gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]

test	UDP/IPv6: guest to host
hostb	(socat -u UDP6-LISTEN:10003,bind=[::1] STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_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	socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]