HDDP Switch

Before building

The switch makes use of the NetBee library to parse packets, so we need to install it first.

1. Install the following packages:

   $ sudo apt-get install cmake libpcap-dev libxerces-c3.1 libxerces-c-dev libpcre3 libpcre3-dev flex bison pkg-config autoconf libtool libboost-dev
   

2. Clone and build netbee

   $ git clone https://github.com/netgroup-polito/netbee.git
   $ cd netbee/src
   $ cmake .
   $ make
   

3. Add the shared libraries built in /nbeesrc/bin/ to your /usr/local/lib directory

   $ sudo cp ../bin/libn*.so /usr/local/lib
   

4. Run ldconfig

   $ sudo ldconfig
   

5. Put the contens of folder nbeesrc/include in the /usr/include

   $ sudo cp -R ../include/* /usr/include/
   

Building

Run the following commands in the ofsoftswitch13 directory to build and install everything:

$ ./boot.sh
$ ./configure
$ make
$ sudo make install

Running

1. Start the datapath:

   $ sudo udatapath/ofdatapath --datapath-id=<dpid> --interfaces=<if-list> ptcp:<port>
   

   This will start the datapath, with the given datapath ID, using the interaces listed. It will open a passive TCP connection on the given port. For a complete list of options, use the --help argument.

2. Start the secure channel, which will connect the datapath to the controller:

   $ secchan/ofprotocol tcp:<switch-host>:<switch-port> tcp:<ctrl-host>:<ctrl-port>
   

   This will open TCP connections to both the switch and the controller, relaying OpenFlow protocol messages between them. For a complete list of options, use the --help argument.

Configuring

You can send requests to the switch using the dpctl utility.

• Check the flow statistics for table 0.

  $ utilities/dpctl tcp:<switch-host>:<switch-port> stats-flow table=0
  

• Install a flow to match IPv6 packets with extension headers hop by hop and destination and coming from port 1.

  $ utilities/dpctl tcp:<switch-host>:<switch-port> flow-mod table=0,cmd=add in_port=1,eth_type=0x86dd,ext_hdr=hop+dest apply:output=2
  

• Add a meter:

  $ utilities/dpctl tcp:<switch-host>:<switch-port> meter-mod cmd=add,meter=1 drop:rate=50
  

• Send flow to meter table

  $ utilities/dpctl tcp:<switch-host>:<switch-port> flow-mod table=0,cmd=add in_port=1 meter:1
  

For a complete list of commands and arguments, use the --help argument. Also, check the wiki for Flow Mod examples

Contribute

Please submit your bug reports, fixes and suggestions as pull requests on GitHub, or by contacting us directly.

License

HDDP Switch is released under the GPLv3 license.

This file is part of the HDDP Switch distribution (https://github.com/gistnetserv-uah/HDDP). Copyright (c) 2020.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.