selftest.sh

#!/usr/bin/env bash

echo "selftest: packetblaster"

# do tests first that don't require PCI

function test_lwaftr_pcap {
  PCAP=$1
  shift
  TEMP_PCAP=/tmp/lwaftr$$.pcap
  echo "testing lwaftr pcap $PCAP ..."
  ./snabb packetblaster lwaftr --pcap $TEMP_PCAP $@
  status=$?
  if [ $status != 0 ]; then
    echo "Error: lwaftr pcap generation failed for ${PCAP} with ${status}"
    rm $TEMP_PCAP
    exit 1
  fi
  if ! which tcpdump; then
    echo "Error: no tcpdump to compare packets"
    rm $TEMP_PCAP
    exit 43
  fi
  cmp $TEMP_PCAP $PCAP
  tcpdump -venr $TEMP_PCAP | sort > $TEMP_PCAP.txt
  rm $TEMP_PCAP
  diffies=$(tcpdump -venr $PCAP | sort | diff -u /dev/stdin $TEMP_PCAP.txt)
  rm $TEMP_PCAP.txt
  if test -n "$diffies"; then
    echo "Error: lwaftr generated pcap differs from ${PCAP}:"
    echo "$diffies"
    exit 1
  fi
}

test_lwaftr_pcap program/packetblaster/lwaftr/test_lwaftr_1.pcap --count 1
test_lwaftr_pcap program/packetblaster/lwaftr/test_lwaftr_2.pcap --count 2 --vlan 100 --size 64

# lwaftr tap test
sudo ip netns add snabbtest || exit $TEST_SKIPPED
sudo ip netns exec snabbtest ip tuntap add tap0 mode tap
sudo ip netns exec snabbtest ip link set up dev tap0
sudo ip netns exec snabbtest ./snabb packetblaster lwaftr --tap tap0 -D 1
status=$?
ip netns exec snabbtest ifconfig tap0
sudo ip netns delete snabbtest
if [ $status != 0 ]; then
  echo "Error: lwaftr tap failed for tap0 with ${status}"
  exit 1
fi

export PCIADDR=$SNABB_PCI_INTEL0
[ ! -z "$PCIADDR" ] || export PCIADDR=$SNABB_PCI0
if [ -z "${PCIADDR}" ]; then
    echo "selftest: skipping test - SNABB_PCI_INTEL0/SNABB_PCI0 not set"
    exit 43
fi
 
# Simple test: Just make sure packetblaster runs for a period of time
# (doesn't crash on startup).
echo "packetblaster replay"
timeout 5 ./snabb packetblaster replay program/snabbnfv/test_fixtures/pcap/64.pcap ${PCIADDR}
status=$?
if [ $status != 124 ]; then
    echo "Error: expected timeout (124) but got ${status}"
    exit 1
else
  echo "ok"
fi

echo "packetblaster synth"
timeout 5 ./snabb packetblaster synth --src 11:11:11:11:11:11 --dst 22:22:22:22:22:22 --sizes 64,128,256 ${PCIADDR}
status=$?
if [ $status != 124 ]; then
    echo "Error: expected timeout (124) but got ${status}"
    exit 1
else
  echo "ok"
fi

if [ "$PCIADDR" = "$SNABB_PCI_INTEL0" ]; then
  echo "packetblaster lwaftr --pci"
  timeout 5 ./snabb packetblaster lwaftr --pci ${PCIADDR}
  status=$?
  if [ $status != 124 ]; then
      echo "Error: expected timeout (124) but got ${status}"
      exit 1
  else
    echo "ok"
  fi
else
  echo 'Skipping ./snabb packetblaster lwaftr --pci ${PCIADDR}'
  echo '${PCIADDR} is not ${SNABB_PCI_INTEL0}'
fi

echo "selftest: ok"