test: Group tests by mode then protocol, rather than the reverse

For example, passt/dhcp rather than dhcp/passt.  This is more
consistent with the two_guests and other test groups, and makes some
other cleanups simpler.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

4 files changed, 464 insertions, 0 deletions

diff --git a/test/passt_in_ns/icmp b/test/passt_in_ns/icmp
new file mode 100644
index 0000000..f326d4b
--- /dev/null
+++ b/test/passt_in_ns/icmp
@@ -0,0 +1,32 @@
+# 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/passt_in_ns/icmp - Check ICMP/ICMPv6 functionality for passt in ns
+#
+# Copyright (c) 2021 Red Hat GmbH
+# Author: Stefano Brivio <sbrivio@redhat.com>
+#
+# These tests can work reliably only within an isolated namespace: the host
+# might have a net.ipv4.ping_group_range sysctl value not allowing pasta's gid
+# to create "ping" sockets. Inside the namespace, there's a single group, which
+# is allowed by default to create them.
+
+nstools	ip jq sleep
+gtools	ping ip jq
+
+test	ICMP echo: guest to ns
+nsout	IFNAME_NS ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
+ns	ip addr add 192.0.2.1/32 dev __IFNAME_NS__
+guest	ping -c1 -w1 192.0.2.1
+ns	ip addr del 192.0.2.1/32 dev __IFNAME_NS__
+
+test	ICMPv6 echo: guest to ns
+ns	ip addr add 2001:db8::1 dev __IFNAME_NS__ && sleep 2 # DAD
+gout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
+guest	ping -c1 -w1 2001:db8::1
+ns	ip addr del 2001:db8::1 dev __IFNAME_NS__
diff --git a/test/passt_in_ns/shutdown b/test/passt_in_ns/shutdown
new file mode 100644
index 0000000..abe9d6c
--- /dev/null
+++ b/test/passt_in_ns/shutdown
@@ -0,0 +1,20 @@
+# 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/passt_in_ns/shutdown - Shut down passt and check exit code (will detect
+#                             valgrind errors amongst others)
+#
+# Copyright (c) 2022 Red Hat GmbH
+# Author: Stefano Brivio <sbrivio@redhat.com>
+
+test	shutdown: exit code
+
+nsout	PASST_PID cat passt.pid
+ns	kill __PASST_PID__
+sleep	1
+passtw
diff --git a/test/passt_in_ns/tcp b/test/passt_in_ns/tcp
new file mode 100644
index 0000000..5ec95e8
--- /dev/null
+++ b/test/passt_in_ns/tcp
@@ -0,0 +1,270 @@
+# 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/passt_in_ns/tcp - Check TCP functionality for passt in ns with pasta
+#
+# Copyright (c) 2021 Red Hat GmbH
+# Author: Stefano Brivio <sbrivio@redhat.com>
+
+gtools	socat ip jq md5sum cut
+htools	dd socat ip jq md5sum cut
+nstools	socat ip jq md5sum cut
+
+test	TCP/IPv4: host to guest: big transfer
+temp	TEMP_BIG
+guestb	socat -u TCP4-LISTEN:10001 OPEN:test_big.bin,create,trunc
+sleep	1
+host	dd if=/dev/urandom bs=1M count=10 of=__TEMP_BIG__
+host	socat -u OPEN:__TEMP_BIG__ TCP4:127.0.0.1:10001
+guestw
+hout	MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+gout	GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: host to ns: big transfer
+temp	TEMP_NS_BIG
+nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_NS_BIG__,create,trunc
+host	socat -u OPEN:__TEMP_BIG__ TCP4:127.0.0.1:10002
+nsw
+nsout	NS_MD5_BIG md5sum __TEMP_NS_BIG__ | cut -d' ' -f1
+check	[ "__NS_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: guest to host: big transfer
+hostb	socat -u TCP4-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc
+gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
+guest	socat -u OPEN:test_big.bin TCP4:__GW__:10003
+hostw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: guest to ns: big transfer
+nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_BIG__,create,trunc
+guest	socat -u OPEN:test_big.bin TCP4:__GW__:10002
+nsw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: ns to host (spliced): big transfer
+sleep	1
+hostb	socat -u TCP4-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP4:127.0.0.1:10003
+hostw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: ns to host (via tap): big transfer
+hostb	socat -u TCP4-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP4:__GW__:10003
+hostw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: ns to guest (using loopback address): big transfer
+guestb	socat -u TCP4-LISTEN:10001 OPEN:test_big.bin,create,trunc
+sleep	1
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP4:127.0.0.1:10001
+guestw
+gout	GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: ns to guest (using namespace address): big transfer
+guestb	socat -u TCP4-LISTEN:10001 OPEN:test_big.bin,create,trunc
+nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
+nsout	ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP4:__ADDR__:10001
+guestw
+gout	GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv4: host to guest: small transfer
+temp	TEMP_SMALL
+guestb	socat -u TCP4-LISTEN:10001 OPEN:test_small.bin,create,trunc
+sleep	1
+host	dd if=/dev/urandom bs=2k count=100 of=__TEMP_SMALL__
+host	socat -u OPEN:__TEMP_SMALL__ TCP4:127.0.0.1:10001
+guestw
+hout	MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+gout	GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: host to ns: small transfer
+temp	TEMP_NS_SMALL
+nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_NS_SMALL__,create,trunc
+host	socat -u OPEN:__TEMP_SMALL__ TCP4:127.0.0.1:10002
+nsw
+nsout	NS_MD5_SMALL md5sum __TEMP_NS_SMALL__ | cut -d' ' -f1
+check	[ "__NS_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: guest to host: small transfer
+hostb	socat -u TCP4-LISTEN:10003 OPEN:__TEMP_SMALL__,create,trunc
+gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
+guest	socat -u OPEN:test_small.bin TCP4:__GW__:10003
+hostw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: guest to ns: small transfer
+nsb	socat -u TCP4-LISTEN:10002 OPEN:__TEMP_SMALL__,create,trunc
+guest	socat -u OPEN:test_small.bin TCP4:__GW__:10002
+nsw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: ns to host (spliced): small transfer
+sleep	1
+hostb	socat -u TCP4-LISTEN:10003 OPEN:__TEMP_SMALL__,create,trunc
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP4:127.0.0.1:10003
+hostw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: ns to host (via tap): small transfer
+hostb	socat -u TCP4-LISTEN:10003 OPEN:__TEMP_SMALL__,create,trunc
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP4:__GW__:10003
+hostw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: ns to guest (using loopback address): small transfer
+guestb	socat -u TCP4-LISTEN:10001 OPEN:test_small.bin,create,trunc
+sleep	1
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP4:127.0.0.1:10001
+guestw
+gout	GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv4: ns to guest (using namespace address): small transfer
+guestb	socat -u TCP4-LISTEN:10001 OPEN:test_small.bin,create,trunc
+sleep	1
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP4:__ADDR__:10001
+guestw
+gout	GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: host to guest: big transfer
+guestb	socat -u TCP6-LISTEN:10001 OPEN:test_big.bin,create,trunc
+sleep	1
+host	socat -u OPEN:__TEMP_BIG__ TCP6:[::1]:10001
+guestw
+gout	GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: host to ns: big transfer
+nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_NS_BIG__,create,trunc
+host	socat -u OPEN:__TEMP_BIG__ TCP6:[::1]:10002
+nsw
+nsout	NS_MD5_BIG md5sum __TEMP_NS_BIG__ | cut -d' ' -f1
+check	[ "__NS_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: guest to host: big transfer
+hostb	socat -u TCP6-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc
+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_big.bin TCP6:[__GW6__%__IFNAME__]:10003
+hostw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: guest to ns: big transfer
+nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_BIG__,create,trunc
+guest	socat -u OPEN:test_big.bin TCP6:[__GW6__%__IFNAME__]:10002
+nsw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: ns to host (spliced): big transfer
+hostb	socat -u TCP6-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP6:[::1]:10003
+hostw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: ns to host (via tap): big transfer
+hostb	socat -u TCP6-LISTEN:10003 OPEN:__TEMP_BIG__,create,trunc
+nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP6:[__GW6__%__IFNAME__]:10003
+hostw
+hout	HOST_MD5_BIG md5sum __TEMP_BIG__ | cut -d' ' -f1
+check	[ "__HOST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: ns to guest (using loopback address): big transfer
+guestb	socat -u TCP6-LISTEN:10001 OPEN:test_big.bin,create,trunc
+sleep	1
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP6:[::1]:10001
+guestw
+gout	GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: ns to guest (using namespace address): big transfer
+guestb	socat -u TCP6-LISTEN:10001 OPEN:test_big.bin,create,trunc
+nsout	ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
+ns	socat -u OPEN:__TEMP_NS_BIG__ TCP6:[__ADDR6__]:10001
+guestw
+gout	GUEST_MD5_BIG md5sum test_big.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_BIG__" = "__MD5_BIG__" ]
+
+test	TCP/IPv6: host to guest: small transfer
+guestb	socat -u TCP6-LISTEN:10001 OPEN:test_small.bin,create,trunc
+sleep	1
+host	socat -u OPEN:__TEMP_SMALL__ TCP6:[::1]:10001
+guestw
+gout	GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: host to ns: small transfer
+nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_NS_SMALL__,create,trunc
+host	socat -u OPEN:__TEMP_SMALL__ TCP6:[::1]:10002
+nsw
+nsout	NS_MD5_SMALL md5sum __TEMP_NS_SMALL__ | cut -d' ' -f1
+check	[ "__NS_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: guest to host: small transfer
+hostb	socat -u TCP6-LISTEN:10003 OPEN:__TEMP_SMALL__,create,trunc
+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_small.bin TCP6:[__GW6__%__IFNAME__]:10003
+hostw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: guest to ns: small transfer
+nsb	socat -u TCP6-LISTEN:10002 OPEN:__TEMP_SMALL__
+guest	socat -u OPEN:test_small.bin TCP6:[__GW6__%__IFNAME__]:10002
+nsw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: ns to host (spliced): small transfer
+hostb	socat -u TCP6-LISTEN:10003 OPEN:__TEMP_SMALL__,create,trunc
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP6:[::1]:10003
+hostw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: ns to host (via tap): small transfer
+hostb	socat -u TCP6-LISTEN:10003 OPEN:__TEMP_SMALL__,create,trunc
+nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP6:[__GW6__%__IFNAME__]:10003
+hostw
+hout	HOST_MD5_SMALL md5sum __TEMP_SMALL__ | cut -d' ' -f1
+check	[ "__HOST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: ns to guest (using loopback address): small transfer
+guestb	socat -u TCP6-LISTEN:10001 OPEN:test_small.bin,create,trunc
+sleep	1
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP6:[::1]:10001
+guestw
+gout	GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ]
+
+test	TCP/IPv6: ns to guest (using namespace address): small transfer
+guestb	socat -u TCP6-LISTEN:10001 OPEN:test_small.bin,create,trunc
+ns	socat -u OPEN:__TEMP_NS_SMALL__ TCP6:[__ADDR6__]:10001
+guestw
+gout	GUEST_MD5_SMALL md5sum test_small.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5_SMALL__" = "__MD5_SMALL__" ]
diff --git a/test/passt_in_ns/udp b/test/passt_in_ns/udp
new file mode 100644
index 0000000..c22a68f
--- /dev/null
+++ b/test/passt_in_ns/udp
@@ -0,0 +1,142 @@
+# 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/passt_in_ns/udp - Check UDP functionality for passt in ns and pasta
+#
+# Copyright (c) 2021 Red Hat GmbH
+# Author: Stefano Brivio <sbrivio@redhat.com>
+
+gtools	socat tee grep cat ip jq md5sum cut
+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 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))
+sleep	1
+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	MD5 md5sum __TEMP__ | cut -d' ' -f1
+gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv4: host to ns
+temp	TEMP_NS
+nsb	(socat -u UDP4-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+host	socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10002
+nsw
+nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
+check	[ "__NS_MD5__" = "__MD5__" ]
+
+test	UDP/IPv4: guest to host
+hostb	(socat -u UDP4-LISTEN:10003 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	[ "__HOST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv4: guest to ns
+nsb	(socat -u UDP4-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+guest	socat -u OPEN:test.bin UDP4:__GW__:10002
+nsw
+hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
+check	[ "__HOST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv4: ns to host (recvmmsg/sendmmsg)
+sleep	1
+hostb	(socat -u UDP4-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+ns	socat -u 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 $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+ns	socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003
+hostw
+hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
+check	[ "__HOST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv4: ns to guest (using loopback address)
+guestb	(socat -u UDP4-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
+ns	socat -u OPEN:__TEMP_NS__ UDP4:127.0.0.1:10001
+guestw
+gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv4: ns to guest (using namespace address)
+guestb	(socat -u UDP4-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
+nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
+nsout	ADDR ip -j -4 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
+ns	socat -u OPEN:__TEMP_NS__ UDP4:__ADDR__:10001
+guestw
+gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5__" = "__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))
+host	socat -u OPEN:__TEMP__ UDP6:[::1]:10001
+guestw
+gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv6: host to ns
+nsb	(socat -u UDP6-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+host	socat -u OPEN:__TEMP__ UDP6:[::1]:10002
+nsw
+nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
+check	[ "__NS_MD5__" = "__MD5__" ]
+
+test	UDP/IPv6: guest to host
+hostb	(socat -u UDP6-LISTEN:10003 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	[ "__HOST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv6: guest to ns
+nsb	(socat -u UDP6-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+guest	socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10002
+nsw
+hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
+check	[ "__HOST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv6: ns to host (recvmmsg/sendmmsg)
+hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+ns	socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003
+hostw
+hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
+check	[ "__HOST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv6: ns to host (via tap)
+hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+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__" ]
+
+test	UDP/IPv6: ns to guest (using loopback address)
+guestb	(socat -u UDP6-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
+ns	socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10001
+guestw
+gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5__" = "__MD5__" ]
+
+test	UDP/IPv6: ns to guest (using namespace address)
+guestb	(socat -u UDP6-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
+nsout	ADDR6 ip -j -6 addr show|jq -rM '.[] | select(.ifname == "__IFNAME__").addr_info[0].local'
+ns	socat -u OPEN:__TEMP_NS__ UDP6:[__ADDR6__]:10001
+guestw
+gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
+check	[ "__GUEST_MD5__" = "__MD5__" ]