From: David Gibson <david@gibson.dropbear.id.au>
To: passt-dev@passt.top
Subject: [PATCH v2 3/3] test: Simpler termination handling for UDP tests
Date: Tue, 13 Sep 2022 16:37:45 +1000 [thread overview]
Message-ID: <20220913063745.3657546-4-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20220913063745.3657546-1-david@gibson.dropbear.id.au>
[-- Attachment #1: Type: text/plain, Size: 16113 bytes --]
Because UDP is connectionless we don't have an in-built end-of-stream
signal for our connectivity tests. We work around this by explicitly
adding an end marker to our sample data and killing the listening end once
it is seen.
However, socat has some built-in options - null-eof and shut-null - which
can be used to signal the end of stream with a zero-length UDP packet.
Use these to simplify how the UDP tests are implemented.
Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
test/passt/udp | 23 +++++++-------
test/passt_in_ns/udp | 73 ++++++++++++++++++++++----------------------
test/pasta/udp | 31 +++++++++----------
3 files changed, 62 insertions(+), 65 deletions(-)
diff --git a/test/passt/udp b/test/passt/udp
index 0253a86..7d444b8 100644
--- a/test/passt/udp
+++ b/test/passt/udp
@@ -11,42 +11,41 @@
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio(a)redhat.com>
-gtools socat tee grep cat ip jq md5sum cut
-htools printf dd socat tee grep cat ip jq md5sum cut
+gtools socat ip jq md5sum cut
+htools dd socat jq md5sum cut
test UDP/IPv4: host to guest
set TEMP __STATEDIR__/data
-set SC_PID __STATEDIR__/socat.pid
-guestb (socat -u UDP4-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
+guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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
+host dd if=/dev/urandom bs=1k count=5 > __TEMP__
+host socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10001,shut-null
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__))
+hostb socat -u UDP4-LISTEN:10003,bind=127.0.0.1,null-eof OPEN:__TEMP__,create,trunc
gout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
-guest socat -u OPEN:test.bin UDP4:__GW__:10003
+guest socat -u OPEN:test.bin UDP4:__GW__:10003,shut-null
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))
+guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
sleep 1
-host socat -u OPEN:__TEMP__ UDP6:[::1]:10001
+host socat -u OPEN:__TEMP__ UDP6:[::1]:10001,shut-null
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__))
+hostb socat -u UDP6-LISTEN:10003,bind=[::1],null-eof OPEN:__TEMP__,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.bin UDP6:[__GW6__%__IFNAME__]:10003
+guest socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10003,shut-null
hostw
hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check [ "__GUEST_MD5__" = "__HOST_MD5__" ]
diff --git a/test/passt_in_ns/udp b/test/passt_in_ns/udp
index 3b1e521..5f01cbf 100644
--- a/test/passt_in_ns/udp
+++ b/test/passt_in_ns/udp
@@ -11,17 +11,16 @@
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio(a)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
+gtools socat ip jq md5sum cut
+nstools socat ip jq md5sum cut
+htools dd socat ip jq md5sum cut
test UDP/IPv4: host to guest
set TEMP __STATEDIR__/data
-set SC_PID __STATEDIR__/socat.pid
-guestb (socat -u UDP4-LISTEN:10001 STDOUT & echo $! > sc.pid) | tee test.bin | (grep -qm1 "END_OF_TEST" && kill $(cat sc.pid))
+guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
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
+host dd if=/dev/urandom bs=1k count=5 > __TEMP__
+host socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10001,shut-null
guestw
hout MD5 md5sum __TEMP__ | cut -d' ' -f1
gout GUEST_MD5 md5sum test.bin | cut -d' ' -f1
@@ -29,114 +28,114 @@ check [ "__GUEST_MD5__" = "__MD5__" ]
test UDP/IPv4: host to ns
set TEMP_NS __STATEDIR__/data_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
+nsb socat -u UDP4-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
+host socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10002,shut-null
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__))
+hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
gout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
-guest socat -u OPEN:test.bin UDP4:__GW__:10003
+guest socat -u OPEN:test.bin UDP4:__GW__:10003,shut-null
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
+nsb socat -u UDP4-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
+guest socat -u OPEN:test.bin UDP4:__GW__:10002,shut-null
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
+hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
+ns socat -u OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003,shut-null
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
+hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
+ns socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003,shut-null
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
+guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
+ns socat -u OPEN:__TEMP_NS__ UDP4:127.0.0.1:10001,shut-null
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))
+guestb socat -u UDP4-LISTEN:10001,null-eof OPEN:test.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__ UDP4:__ADDR__:10001
+ns socat -u OPEN:__TEMP_NS__ UDP4:__ADDR__:10001,shut-null
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
+guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
+host socat -u OPEN:__TEMP__ UDP6:[::1]:10001,shut-null
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
+nsb socat -u UDP6-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
+host socat -u OPEN:__TEMP__ UDP6:[::1]:10002,shut-null
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__))
+hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,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.bin UDP6:[__GW6__%__IFNAME__]:10003
+guest socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10003,shut-null
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
+nsb socat -u UDP6-LISTEN:10002,null-eof OPEN:__TEMP_NS__,create,trunc
+guest socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10002,shut-null
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
+hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
+ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003,shut-null
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__))
+hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
nsout IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
-ns socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003
+ns socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003,shut-null
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
+guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.bin,create,trunc
+ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10001,shut-null
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))
+guestb socat -u UDP6-LISTEN:10001,null-eof OPEN:test.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__ UDP6:[__ADDR6__]:10001
+ns socat -u OPEN:__TEMP_NS__ UDP6:[__ADDR6__]:10001,shut-null
guestw
gout GUEST_MD5 md5sum test.bin | cut -d' ' -f1
check [ "__GUEST_MD5__" = "__MD5__" ]
diff --git a/test/pasta/udp b/test/pasta/udp
index 74148e3..fc6bf0a 100644
--- a/test/pasta/udp
+++ b/test/pasta/udp
@@ -11,59 +11,58 @@
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio(a)redhat.com>
-nstools socat tee grep cat ip jq md5sum cut
-htools printf dd socat tee grep cat ip jq md5sum cut
+nstools socat ip jq md5sum cut
+htools dd socat ip jq md5sum cut
test UDP/IPv4: host to ns
set TEMP __STATEDIR__/data
set TEMP_NS __STATEDIR__/data_ns
-set SC_PID __STATEDIR__/socat.pid
-nsb (socat -u UDP4-LISTEN:10002,bind=127.0.0.1 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (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__
+nsb socat -u UDP4-LISTEN:10002,bind=127.0.0.1,null-eof OPEN:__TEMP_NS__,create,trunc
+host dd if=/dev/urandom bs=1k count=5 > __TEMP__
-host socat OPEN:__TEMP__ UDP4:127.0.0.1:10002
+host socat OPEN:__TEMP__ UDP4:127.0.0.1:10002,shut-null
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 $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+hostb socat -u UDP4-LISTEN:10003,bind=127.0.0.1,null-eof OPEN:__TEMP__,create,trunc
sleep 1
-ns socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003
+ns socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003,shut-null
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__))
+hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
nsout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
-ns socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003
+ns socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003,shut-null
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 $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
-host socat -u OPEN:__TEMP__ UDP6:[::1]:10002
+nsb socat -u UDP6-LISTEN:10002,bind=[::1],null-eof OPEN:__TEMP_NS__,create,trunc
+host socat -u OPEN:__TEMP__ UDP6:[::1]:10002,shut-null
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 $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+hostb socat -u UDP6-LISTEN:10003,bind=[::1],null-eof OPEN:__TEMP__,create,trunc
sleep 1
-ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003
+ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003,shut-null
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__))
+hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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
+ns socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003,shut-null
hostw
hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check [ "__HOST_MD5__" = "__MD5__" ]
--
@@ -11,59 +11,58 @@
# Copyright (c) 2021 Red Hat GmbH
# Author: Stefano Brivio <sbrivio(a)redhat.com>
-nstools socat tee grep cat ip jq md5sum cut
-htools printf dd socat tee grep cat ip jq md5sum cut
+nstools socat ip jq md5sum cut
+htools dd socat ip jq md5sum cut
test UDP/IPv4: host to ns
set TEMP __STATEDIR__/data
set TEMP_NS __STATEDIR__/data_ns
-set SC_PID __STATEDIR__/socat.pid
-nsb (socat -u UDP4-LISTEN:10002,bind=127.0.0.1 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (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__
+nsb socat -u UDP4-LISTEN:10002,bind=127.0.0.1,null-eof OPEN:__TEMP_NS__,create,trunc
+host dd if=/dev/urandom bs=1k count=5 > __TEMP__
-host socat OPEN:__TEMP__ UDP4:127.0.0.1:10002
+host socat OPEN:__TEMP__ UDP4:127.0.0.1:10002,shut-null
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 $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+hostb socat -u UDP4-LISTEN:10003,bind=127.0.0.1,null-eof OPEN:__TEMP__,create,trunc
sleep 1
-ns socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003
+ns socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003,shut-null
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__))
+hostb socat -u UDP4-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
nsout GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
-ns socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003
+ns socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003,shut-null
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 $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
-host socat -u OPEN:__TEMP__ UDP6:[::1]:10002
+nsb socat -u UDP6-LISTEN:10002,bind=[::1],null-eof OPEN:__TEMP_NS__,create,trunc
+host socat -u OPEN:__TEMP__ UDP6:[::1]:10002,shut-null
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 $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
+hostb socat -u UDP6-LISTEN:10003,bind=[::1],null-eof OPEN:__TEMP__,create,trunc
sleep 1
-ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003
+ns socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003,shut-null
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__))
+hostb socat -u UDP6-LISTEN:10003,null-eof OPEN:__TEMP__,create,trunc
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
+ns socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003,shut-null
hostw
hout HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
check [ "__HOST_MD5__" = "__MD5__" ]
--
2.37.3
prev parent reply other threads:[~2022-09-13 6:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-13 6:37 [PATCH v2 0/3] Don't drop outbound zero-length UDP packets over tap David Gibson
2022-09-13 6:37 ` [PATCH v2 1/3] udp: Don't pre-initialize msghdr array David Gibson
2022-09-13 6:37 ` [PATCH v2 2/3] udp: Don't drop zero-length outbound UDP packets David Gibson
2022-09-13 6:37 ` David Gibson [this message]
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