Add net/dhcprelay, a DHCP Relay Agent.

See the pkg-descr for reasoning why I had to make this one.

    WWW: http://www.mavetju.org/networking/
    Author: Edwin Groothuis <edwin@mavetju.org>

net/Makefile

@@ -107,6 +107,7 @@
     SUBDIR += dhcp6
     SUBDIR += dhcpdump
     SUBDIR += dhcping
+    SUBDIR += dhcprelay
     SUBDIR += dictd
     SUBDIR += dictd-database
     SUBDIR += diradmin

net/dhcprelay/Makefile

@@ -0,0 +1,26 @@
+# New ports collection makefile for:   dhcprelay
+# Date created:        15 November 2005
+# Whom:                Edwin Groothuis (edwin@mavetju.org)
+#
+# $FreeBSD$
+#
+
+PORTNAME=	dhcprelay
+PORTVERSION=	1.0
+CATEGORIES=	net
+MASTER_SITES=	http://www.mavetju.org/download/
+
+MAINTAINER=	edwin@mavetju.org
+COMMENT=	Light weight DHCP Relay Agent with GIF tunnel support
+
+LIB_DEPENDS=	dnet.1:${PORTSDIR}/net/libdnet
+
+PLIST_FILES=	bin/dhcprelay etc/rc.d/dhcprelay.sh
+USE_RC_SUBR=	yes
+SUB_FILES=	dhcprelay.sh
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/dhcprelay ${PREFIX}/bin
+	${INSTALL_SCRIPT} ${WRKDIR}/dhcprelay.sh ${PREFIX}/etc/rc.d
+
+.include <bsd.port.mk>

net/dhcprelay/distinfo

@@ -0,0 +1,3 @@
+MD5 (dhcprelay-1.0.tar.gz) = 576a4c5eb94b31b3b47cb022c14c30a7
+SHA256 (dhcprelay-1.0.tar.gz) = de550760b6a36cf205ca8138e22867c5ccb1c220ebb20acb79205a2ac8d9f9f3
+SIZE (dhcprelay-1.0.tar.gz) = 4771

net/dhcprelay/files/dhcprelay.sh.in

@@ -0,0 +1,36 @@
+#! /bin/sh
+#
+# $FreeBSD: /tmp/pcvs/ports/net/dhcprelay/files/Attic/dhcprelay.sh.in,v 1.1 2005-11-15 11:26:44 edwin Exp $
+#
+# PROVIDE: dhcprelay
+# REQUIRE: DAEMON
+# KEYWORD: FreeBSD
+#
+# Add the following line to /etc/rc.conf to enable dhcrelay:
+#
+# dhcprelay_enable="YES"
+#
+
+# override these variables in /etc/rc.conf
+dhcprelay_enable=${dhcprelay_enable:-"NO"}
+dhcprelay_server=${dhcprelay_server:-}		# dhcprelay server(s)
+dhcprelay_ifaces=${dhcprelay_ifaces:-}		# ethernet interface(s)
+
+dhcprelay_precmd ()
+{
+    rc_flags="${rc_flags} ${dhcprelay_ifaces} ${dhcprelay_servers}"
+}
+
+. %%RC_SUBR%%
+
+name=dhcprelay
+rcvar=$(set_rcvar)
+pidfile=/var/run/${name}.pid
+command=/usr/local/bin/${name}
+
+start_precmd=${name}_precmd
+
+echo $rc_flags
+
+load_rc_config ${name}
+run_rc_command "$1"

net/dhcprelay/files/patch-Makefile

@@ -0,0 +1,15 @@
+--- Makefile.orig	Tue Nov 15 18:25:30 2005
++++ Makefile	Tue Nov 15 18:25:59 2005
+@@ -1,8 +1,10 @@
++all:	dhcprelay
++
+ dhcprelay: dhcprelay.o
+-	gcc -g -o $@ -Wall -L/usr/local/lib -lpcap -ldnet $>
++	gcc -g -o $@ -Wall -L${LOCALBASE}/lib -lpcap -ldnet $>
+ 
+ dhcprelay.o: dhcprelay.c
+-	gcc -g -c -o $@ -Wall -I/usr/local/include $<
++	gcc -g -c -o $@ -Wall -I${LOCALBASE}/include $<
+ 
+ clean:
+ 	rm -f dhcprelay.o dhcprelay dhcprelay.core

net/dhcprelay/pkg-descr

@@ -0,0 +1,29 @@
+A light-weight DHCP Relay Agent.
+
+Why not the ISC DHCP Relay Agent?
+
+- If your RA has multiple interfaces, you get multiple requests for
+  each request:
+
+  DHCPREQUEST for 10.199.14.216 from 00:10:dc:d1:e6:39 (foo) via 10.199.14.1
+  DHCPACK on 10.199.14.216 to 00:10:dc:d1:e6:39 (foo) via 10.199.14.1
+  DHCPREQUEST for 10.199.14.216 from 00:10:dc:d1:e6:39 (foo) via 10.10.3.5: wrong network.
+  DHCPNAK on 10.199.14.216 to 00:10:dc:d1:e6:39 via 10.10.3.5
+
+  This RA sends only one request, coming with the IP address of the
+  LAN the request came from.
+
+- If your RA has multiple interfaces, the outgoing interfaces to
+  the WAN needs to be active in the DHCP relay otherwise answers
+  are not picked up.
+
+  This RA uses a unicast socket for returning answers.
+
+- If your RA has non-ethernet interfaces (GIF-tunnels for example,
+  which VPN back to the central network), the answers are not picked
+  up by the RA.
+
+  This RA does use a unicast socket for returning answers.
+
+WWW: http://www.mavetju.org/networking/
+Author: Edwin Groothuis <edwin@mavetju.org>