passt/test/udp/pasta

# 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/pasta - Check UDP functionality for pasta
#
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio@redhat.com>

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

test	UDP/IPv4: host to ns
temp	TEMP
temp	TEMP_NS
temp	NC_PID
nsb	(socat -u UDP4-LISTEN:10002,bind=127.0.0.1 STDOUT & echo $! > __NC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
host	dd if=/dev/urandom bs=1k count=5 > __TEMP__ && printf "\nEND_OF_TEST\n" >> __TEMP__

host	socat OPEN:__TEMP__ UDP4:127.0.0.1:10002
nsw
hout	MD5 md5sum __TEMP__ | cut -d' ' -f1
nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
check	[ "__NS_MD5__" = "__MD5__" ]

test	UDP/IPv4: ns to host (recvmmsg/sendmmsg)
hostb	(socat -u UDP4-LISTEN:10003,bind=127.0.0.1 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
sleep	1
ns	socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__HOST_MD5__" = "__MD5__" ]

test	UDP/IPv4: ns to host (via tap)
hostb	(socat -u UDP4-LISTEN:10003 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
nsout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
ns	socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__HOST_MD5__" = "__MD5__" ]

test	UDP/IPv6: host to ns
nsb	(socat -u UDP6-LISTEN:10002,bind=[::1] STDOUT & echo $! > __NC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
host	socat -u OPEN:__TEMP__ UDP6:[::1]:10002
nsw
hout	MD5 md5sum __TEMP__ | cut -d' ' -f1
nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
check	[ "__NS_MD5__" = "__MD5__" ]

test	UDP/IPv6: ns to host (recvmmsg/sendmmsg)
hostb	(socat -u UDP6-LISTEN:10003,bind=[::1] STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
sleep	1
ns	socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__HOST_MD5__" = "__MD5__" ]
nsw

test	UDP/IPv6: ns to host (via tap)
hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
nsout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
ns	socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003
hostw
hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check	[ "__HOST_MD5__" = "__MD5__" ]