# -*- text -*-
######################################################################
#
#	This is a virtual server that handles DHCP.
#
#		!!!! WARNING !!!!
#
#	This code is experimental, and SHOULD NOT be used in a
#	production system.  It is intended for validation and
#	experimentation ONLY.
#
#	In order for this to work, you will need to run configure:
#
#		$ ./configure --with-dhcp
#		$ make
#		$ make install
#
#	DHCP is NOT enabled by default.
#
#	The goal of this effort is to get the code in front of
#	people who are interested in another DHCP server.
#	We NEED FEEDBACK, patches, bug reports, etc.  Especially patches!
#
#	Please contribute, or this work will be nothing more than
#	a curiosity.
#
#
#	Q: What does it do?
#	A: It allows the server to receive DHCP packets, and to
#	   respond with static, pre-configured DHCP responses.
#
#	Q: Does it do static/dynamic IP assignment?
#	A: No.  Or, maybe.  Try it and see.
#
#	Q: Does it read ISC configuration or lease files?
#	A: No.  Please submit patches.
#
#	Q: Does it have DHCP feature X?
#	A: No.  Please submit patches.
#
#	Q: Does it support option 82?
#	A: Yes.
#
#	Q: Does it support other options?
#	A: Maybe.  See dictionary.dhcp.  Please submit patches.
#
#	Q: It doesn't seem to do much of anything!
#	A: Exactly.
#
#	$Id: dhcp,v 1.3 2008/05/29 09:39:35 aland Exp $
#
######################################################################

#
#  The DHCP functionality goes into a virtual server.
#
server dhcp {

#  This is part RADIUS legacy (sorry).  Clients have to be defined for
#  DHCP.  This is not normal practice for a DHCP server, but it does
#  enable a simple filter list of "known clients".
#

#  DHCP packets are normally sent with source IP address 0.0.0.0.
#  If you want to accept packets from any IP, uncomment the "netmask"
#  entry below, and delete the other "client" sections in this file.
client any {
	ipaddr = 0.0.0.0
	#netmask = 0
	dhcp = yes
}

#  For local testing.
client localnet {
	ipaddr = 127.0.0.0
	netmask = 8
	dhcp = yes
}

#  Define a DHCP socket.
#
#  The default port below is 6700, so you don't break your network.
#  If you want it to do real DHCP, change this to 67, and good luck!
#
#  You can also bind the DHCP socket to an interface.
#  See below, and raddb/radiusd.conf for examples.
#
#  This lets you run *one* DHCP server instance and have it listen on
#  multiple interfaces, each with a separate policy.
#
#  If you have multiple interfaces, it is a good idea to bind the
#  listen section to an interface.  You will likely also need one
#  listen section per interface.
listen {
	ipaddr = *
	port = 6700
	type = dhcp
	#interface = eth0
}

#  Packets received on the socket will be processed through one
#  of the following sections, named after the DHCP packet type.
#  See dictionary.dhcp for the packet types.
dhcp DHCP-Discover {
	update reply {
	       DHCP-Message-Type = DHCP-Offer
	}

	#  The contents here are invented.  Change them!
	update reply {
	        DHCP-Domain-Name-Server = 127.0.0.1
	        DHCP-Domain-Name-Server = 127.0.0.2
		DHCP-Subnet-Mask = 255.255.255.0
		DHCP-Router-Address = 192.168.1.1
		DHCP-IP-Address-Lease-Time = 86400
		DHCP-DHCP-Server-Identifier = 192.168.1.1
	}

	#  Do a simple mapping of MAC to assigned IP.
	#
	#  See below for the definition of the "mac2ip"
	#  module.
	#
	#mac2ip

	#  If the MAC wasn't found in that list, do something else.
	#  You could call a Perl, Python, or Java script here.

	#if (notfound) {
	# ...
	#}

	ok
}

dhcp DHCP-Request {
	update reply {
	       DHCP-Message-Type = DHCP-Ack
	}

	#  The contents here are invented.  Change them!
	update reply {
	        DHCP-Domain-Name-Server = 127.0.0.1
	        DHCP-Domain-Name-Server = 127.0.0.2
		DHCP-Subnet-Mask = 255.255.255.0
		DHCP-Router-Address = 192.168.1.1
		DHCP-IP-Address-Lease-Time = 86400
		DHCP-DHCP-Server-Identifier = 192.168.1.1
	}

	#  Do a simple mapping of MAC to assigned IP.
	#
	#  See below for the definition of the "mac2ip"
	#  module.
	#
	#mac2ip

	#  If the MAC wasn't found in that list, do something else.
	#  You could call a Perl, Python, or Java script here.

	#if (notfound) {
	# ...
	#}

	ok
}

#  If there's no named section for the packet type, then the packet
#  is processed through this section.
dhcp {
	# send a DHCP NAK.
	reject
}


}

######################################################################
#
#  This next section is a sample configuration for the "passwd"
#  module, that reads flat-text files.  It should go into
#  radiusd.conf, in the "modules" section.
#
#  The file is in the format <mac>,<ip>
#
#	00:01:02:03:04:05,192.168.1.100
#	01:01:02:03:04:05,192.168.1.101
#	02:01:02:03:04:05,192.168.1.102
#
#  This lets you perform simple static IP assignment.
#
######################################################################

#passwd mac2ip {
#	filename = ${confdir}/mac2ip
#	format = "*DHCP-Client-Hardware-Address:=DHCP-Your-IP-Address"
#	delimiter = ","
#}
