adding travis test

.travis.yml

@@ -0,0 +1,41 @@
+# Config file for automatic testing at travis-ci.org
+
+sudo: required
+
+# workaround for a travis Python issue
+# see https://github.com/travis-ci/travis-ci/issues/4948
+language: generic
+
+dist: trusty
+
+# My very smart trick to force inclusion of the veth kernel module
+# (even though we do not use docker at all her)
+services:
+  - docker
+
+addons:
+  apt:
+    packages:
+      - python-dev
+      - python-pip
+      - cmake
+      - libffi-dev
+
+before_install:
+  - sudo apt-get install ethtool
+  - sudo pip install --upgrade pip
+  - sudo apt-get remove python-scapy
+  - git clone https://github.com/p4lang/scapy-vxlan.git && cd scapy-vxlan && sudo python setup.py install && cd ..
+  - bash CI/travis/install-nanomsg.sh
+  - sudo ldconfig
+  - bash CI/travis/install-nnpy.sh
+
+install:
+  - sudo python setup.py install
+
+before_script:
+  - cd ptf_nn/; sudo ./veth_setup.sh; cd ..
+
+script:
+  - python CI/travis/check-nnpy.py
+  - ./CI/travis/run_tests.sh

CI/travis/common.sh

@@ -0,0 +1,34 @@
+force=0
+while [[ $# -gt 0 ]]; do
+key="$1"
+case $key in
+    -f|--force)
+    force=1
+    ;;
+    *)
+            # unknown option
+    ;;
+esac
+shift # past argument or value
+done
+
+function quit {
+    if [ $force == 0 ]; then
+        echo "skipping installation, you can force installation with '-f'"
+        exit 0
+    fi
+}
+
+function check_lib {
+    ldconfig -p | grep $2 &> /dev/null
+    if [ $? == 0 ]; then
+        echo "$2 found"
+        quit
+    fi
+    ldconfig -p | grep $1 &> /dev/null
+    if [ $? == 0 ]; then
+        echo "a version of $1 was found, but not $2"
+        echo "you may experience issues when using a different version"
+        quit
+    fi
+}

CI/travis/install-nanomsg.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+THIS_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+source $THIS_DIR/common.sh
+
+# nanomsg is very confusing in how it manages SOVERSION vs VERSION, but this
+# should be okay... (5.0.0 is the SOVERSION)
+check_lib libnanomsg libnanomsg.so.5.0.0
+
+set -e
+wget https://github.com/nanomsg/nanomsg/archive/1.0.0.tar.gz -O nanomsg-1.0.0.tar.gz
+tar -xzvf nanomsg-1.0.0.tar.gz
+cd nanomsg-1.0.0
+mkdir build
+cd build
+# I added -DCMAKE_INSTALL_PREFIX=/usr because on my Ubuntu 14.04 machine, the
+# library is installed in /usr/local/lib/x86_64-linux-gnu/ by default, and for
+# some reason ldconfig cannot find it
+cmake .. -DCMAKE_INSTALL_PREFIX=/usr
+cmake --build .
+sudo cmake --build . --target install
+cd ..

CI/travis/run_tests.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+sudo python ptf_nn/ptf_nn_agent.py \
+    --device-socket 0@tcp://127.0.0.1:10001 -i 0-1@veth0 \
+    &>/dev/null &
+
+sleep 5
+
+sudo python ptf_nn/ptf_nn_agent.py \
+    --device-socket 1@tcp://127.0.0.1:10002 -i 1-1@veth3 \
+    &>/dev/null &
+
+sleep 5
+
+sudo python ptf_nn/ptf_nn_test_bridge.py -ifrom veth1 -ito veth2 \
+    &>/dev/null &
+
+sleep 5
+
+sudo ptf --test-dir ptf_nn/ptf_nn_test \
+    --device-socket 0-{0-64}@tcp://127.0.0.1:10001 \
+    --device-socket 1-{0-64}@tcp://127.0.0.1:10002 \
+    --platform nn

ptf_nn/README.md

@@ -17,10 +17,10 @@ to install the following:
   - [nanomsg](https://github.com/nanomsg/nanomsg/releases): we recommend
     installing the `1.0.0` production release.
   - [nnpy](https://github.com/nanomsg/nnpy): these are the Python bindings for
-    nanomsg. You may use the provided [install_nnpy.sh](install_nnpy.sh) script
+    nanomsg. You may use the provided (install-nnpy.sh)[install-nnpy.sh] script
     to install nnpy. It will install a version of nnpy that we have tested.
 
-We provide a [check_deps.py](check_deps.py) script that you can run to check
+We provide a [check-nnpy.py](check-nnpy.py) script that you can run to check
 that nanomsg and nnpy are running properly.
 
 ## Overview
@@ -33,8 +33,8 @@ between a set of interfaces (connected to the switch) and the PTF
 tester. Packets received on an interface (from the switch) will be tagged with
 the port number and forwarded to the PTF tester. Packets received from the PTF
 tester will be forwarded to the switch using the appropriate
-interface. Communications between the PTF tester and each agent is done over TCP
-using the nanomsg messaging library.
+interface. Communications between the PTF tester and each agent are done over
+TCP using the nanomsg messaging library.
 
 ## Demo
 

ptf_nn/check-nnpy.py

@@ -0,0 +1 @@
+../CI/travis/check-nnpy.py

ptf_nn/install-nnpy.py

@@ -0,0 +1 @@
+../CI/travis/install-nnpy.sh

ptf_nn/veth_setup.sh

@@ -7,4 +7,6 @@ for idx in 0 1; do
         ip link set dev $intf0 up
         ip link set dev $intf1 up
     fi
+    sysctl net.ipv6.conf.$intf0.disable_ipv6=1
+    sysctl net.ipv6.conf.$intf1.disable_ipv6=1
 done