charrua
charrua is an
ISC-licensed DHCP library implementation in OCaml.
It provides the following packages:
charrua: a library that handles wire traffic parsing
charrua-server: a DHCP server implementation
charrua-client: a library for handling DHCP client state and messages
charrua-unix: a Unix DHCP server implementation
Charrua
The name charrua
is a reference to the, now extinct, semi-nomadic people of
southern South America.
Charrua consists of the single module Dhcp_wire
responsible for parsing and
constructing DHCP messages,
You can browse the API for charrua at
https://mirage.github.io/charrua/
Features
Dhcp_wire
provides marshalling and unmarshalling utilities for DHCP, it is the
base forDhcp_server
.Logic/sequencing is agnostic of IO and platform, so it can run on Unix as a
process, as a Mirage unikernel or anything else.All DHCP options are supported at the time of this writing.
Code is purely applicative.
It's in OCaml, so it's pretty cool.
Charrua-server
The module Dhcp_server
supports a stripped down ISC dhcpd.conf
, so you can
probably just use your old dhcpd.conf
. It also supports manual configuration
building in OCaml.
dhcp
is a MirageOS DHCP unikernel server based on charrua,
included as a part of the MirageOS unikernel example and starting-point
repository.
Charrua-client
charrua-client is a DHCP client powered by charrua.
The base library exposes a simple state machine in Dhcp_client
for use in acquiring a DHCP lease.
charrua-client-lwt
extends charrua-client
with a functor Dhcp_client_lwt
,
using the provided modules for timing and networking logic,
for convenient use by a program which might wish to implement a full client.
charrua-client-mirage
exposes an additional Dhcp_client_mirage
for direct use
with the MirageOS library operating system.
Charrua-unix Server
charrua-unix is an ISC-licensed Unix DHCP daemon based on
charrua.
Features
Supports a stripped down ISC dhcpd.conf. A configuration sample can be found
herePrivilege dropping: the daemon doesn't run as root.
Almost purely-functional code.
Support for multiple interfaces/subnets.
Try charruad --help
for options.
This project became one of the Mirage Pioneer
projects.
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