From 96a68750a1ba9791291a94db2f73d1c3b3ffdf20 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Wed, 06 Aug 2014 10:42:01 -0400
Subject: Add networking hooks for udhcpd

---
(limited to 'src.etc/network/if-up.d/dhcpd')

diff --git a/src.etc/network/if-up.d/dhcpd b/src.etc/network/if-up.d/dhcpd
new file mode 100644
index 0000000..5fcc18e
--- /dev/null
+++ b/src.etc/network/if-up.d/dhcpd
@@ -0,0 +1,56 @@
+#!/bin/sh
+
+. /etc/network/functions
+
+set -eu
+
+address=
+subnet=
+gateway=
+
+dhcpd_opts_start_cb()
+{
+	exec 3>"/var/run/udhcpd.${IFACE}.conf"
+	printf 'interface %s\n' "${IFACE}" >&3
+	printf 'pidfile /var/run/udhcpd.%s.pid\n' "${IFACE}" >&3
+	printf 'lease_file /var/lib/misc/udhcpd.%s.leases\n' "${IFACE}" >&3
+}
+
+dhcpd_opt_cb()
+{
+	local key="${1}"
+	shift 1
+	local val="${*}"
+
+	case "${key}" in
+		dhcpd-*)
+			key="$(printf '%s\n' "${key#dhcpd-}" | tr '-' '_')"
+			printf '%s %s\n' "${key}" "${val}" >&3
+			;;
+		address)
+			address="${val}"
+			;;
+		subnet)
+			subnet="${val}"
+			;;
+		gateway)
+			gateway="${val}"
+			;;
+	esac
+}
+
+dhcpd_opts_end_cb()
+{
+	printf 'option subnet %s\n' "${subnet}" >&3
+	if [ "x${gateway}" != 'x' ]; then
+		printf 'option router %s\n' "${gateway}" >&3
+	else
+		printf 'option router %s\n' "${address}" >&3
+	fi
+	sed 's/nameserver/option dns/' /etc/resolv.conf >&3
+	exec &3>-
+
+	udhcpd -S "/var/run/udhcpd.${IFACE}.conf"
+}
+
+get_iface_opts dhcpd_opts_start_cb dhcpd_opt_cb dhcpd_opts_end_cb
--
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