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.. _lua:
Lua
===
Lua is currently experimental within FRR and has very limited
support. If you would like to compile FRR with Lua you must
follow these steps:
1. Installation of Relevant Libraries
.. code-block:: shell
apt-get install lua5.3 liblua5-3 liblua5.3-dev
These are the Debian libraries that are needed. There should
be equivalent RPM's that can be found
2. Compilation
Configure needs these options
.. code-block:: shell
./configure --enable-dev-build --enable-lua <all other interesting options>
Typically you just include the two new enable lines to build with it.
3. Using Lua
* Copy tools/lua.scr into /etc/frr
* Create a route-map match command
.. code-block:: console
!
router bgp 55
neighbor 10.50.11.116 remote-as external
address-family ipv4 unicast
neighbor 10.50.11.116 route-map TEST in
exit-address-family
!
route-map TEST permit 10
match command mooey
!
* In the lua.scr file make sure that you have a function named 'mooey'
.. code-block:: console
function mooey ()
zlog_debug(string.format("afi: %d: %s %d ifdx: %d aspath: %s localpref: %d",
prefix.family, prefix.route, nexthop.metric,
nexthop.ifindex, nexthop.aspath, nexthop.localpref))
nexthop.metric = 33
nexthop.localpref = 13
return 3
end
4. General Comments
Please be aware that this is extremely experimental and needs a ton of work
to get this up into a state that is usable.
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