Add script to run performance tests

Requires iperf3 on the host. Automatically install iperf3 in the VM

test/performance.sh

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+set -x
+
+VM=$1
+GVPROXY_SOCKET=$2
+
+echo "Testing Internet access with a server running on the host"
+
+nohup iperf3 -s > /dev/null 2>&1 &
+serverPID=$!
+
+ssh $VM curl https://iperf.fr/download/ubuntu/libiperf.so.0_3.1.3 -o libiperf.so.0
+ssh $VM curl https://iperf.fr/download/ubuntu/iperf3_3.1.3 -o iperf3
+ssh $VM chmod +x iperf3
+
+echo "TCP: sending data"
+ssh $VM LD_LIBRARY_PATH=. ./iperf3 -c host.crc.testing
+echo "TCP: receiving data"
+ssh $VM LD_LIBRARY_PATH=. ./iperf3 -c host.crc.testing -R
+
+echo "UDP: sending data"
+ssh $VM LD_LIBRARY_PATH=. ./iperf3 -c host.crc.testing -u
+echo "UDP: receiving data"
+ssh $VM LD_LIBRARY_PATH=. ./iperf3 -c host.crc.testing -R -u
+
+kill $serverPID
+
+echo "Testing forwarder with a server running in the VM"
+
+curl --unix-socket $GVPROXY_SOCKET http:/unix/services/forwarder/expose -X POST \
+  -d'{"local":":5201", "protocol": "udp", "remote": "192.168.127.2:5201"}'
+curl --unix-socket $GVPROXY_SOCKET http:/unix/services/forwarder/expose -X POST \
+  -d'{"local":":5201", "protocol": "tcp", "remote": "192.168.127.2:5201"}'
+
+ssh $VM LD_LIBRARY_PATH=. ./iperf3 -s > /dev/null 2>&1 &
+sleep 1
+
+echo "TCP: sending data"
+iperf3 -c 127.0.0.1
+echo "TCP: receiving data"
+iperf3 -c 127.0.0.1 -R
+
+echo "UDP: sending data"
+iperf3 -c 127.0.0.1 -u -l 9216
+echo "UDP: receiving data"
+iperf3 -c 127.0.0.1 -R -u -l 9216
+
+ssh $VM pkill iperf3
+
+curl --unix-socket $GVPROXY_SOCKET http:/unix/services/forwarder/unexpose -X POST \
+  -d'{"local":":5201", "protocol": "udp"}'
+curl --unix-socket $GVPROXY_SOCKET http:/unix/services/forwarder/unexpose -X POST \
+  -d'{"local":":5201", "protocol": "tcp"}'