What it is

The Revised OpenFlow Library (ROFL) helps you adding OpenFlow support to your software to build control applications, controller frameworks and/or datapath elements.

Requirements

• A modern GNU build-system (autoconf, automake, libtool, ...)
• pkg-config
• GNU/Linux and libc development headers (linux-libc-dev and libc6-dev package in Debian/Ubuntu systems)
• [optional] if you want to run automatic tests (make check), libcunit and libcppunit are required (in libcunit1-dev and libcppunit-dev packages in Debian-like systems).
• [optional] Doxygen to generate the documentation.

How to build

Install the dependencies and run:

sh# ./autogen.sh  
sh# cd build  
sh# ../configure  
sh# make  
sh# make install  

Optionally you can 'make check' for consistency checks.

Optional ../configure parameters

--enable-debug: Compile with debug symbols (-g) and debug output (warning, it may affect performance)  
--enable-verbose: Increase the level of debug (useless without --enable-debug)  
--disable-silent-rules: Enable verbose compilation mode (AM_SILENT_RULES disabled)

Known issues with Automake 1.14

ROFL package uses subdir-objects. From Automake v1.14 on, the support of subdir-objects must be explicitly added in AM_INIT_AUTOMAKE() in order to prevent warnings that will abort compilation. However, due to the following bug:

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13928

The build system won't work if subdir-objects is added in AM_INIT_AUTOMAKE().

Currently, in order to compile the package, the suggested strategy is to remove -Werror from AM_INIT_AUTOMAKE() in the configure.ac:

diff --git a/configure.ac b/configure.ac
index 9d918d4..62fce3d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ AC_INIT(ROFL, m4_esyscmd_s(cat VERSION), rofl-devel@roflibs.org, rofl, http://ww
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AM_INIT_AUTOMAKE([-Wall foreign])
 
 AC_GNU_SOURCE

Note there will be a considerably number of warnings shown. Once bug 13928, subdir-objects will be added as it should be.

Doxygen documentation

Documentation can be compiled via make doc. Documentation is generated in build/doc/ folder

FAQ

Some distributions, in particular Red Hat based, do not include by default /usr/local/lib on the search path of ldconfig, not allowing to link against -lrofl and -lrofl_pipeline. In this case, you might have to add /usr/local/lib/ into /etc/ld.so.conf and re-run ldconfig.

More information, documentation and support

You can have a look on:

http://www.roflibs.org/ http://www.roflibs.org/doc/

Documentation can be compiled via make doc. Documentation is generated in build/doc/ folder

For getting support or participate in the discussions, join the mailing list rofl-devel@roflibs.org at https://lists.roflibs.org/mailman

Authorship

(c) Copyright BISDN GmbH 2013

Andreas Koepsel<andreas.koepsel (at) bisdn.de>
Marc Sune<marc.sune (at) bisdn.de>
Victor Alvarez<victor.alvarez (at) bisdn.de>
Tobias Jungel<tobias.jungel (at) bisdn.de>

And others.