From 5ac8a35ffa7db1c1295f46c75e6b8cc7cd698546 Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant+debianbugs@freegeek.org>
Date: Tue, 4 Sep 2007 10:41:07 +0200
Subject: initramfs-tools: split networking code into separate function

ltsp in ubuntu started using NBD+unionfs+squashfs instead of NFS, and
debian-live uses has a network boot methods using cifs in addition to a
different way of using NFS (i think it also uses unionfs and maybe
squashfs, not just a plain NFS/cifs mount)...

so splitting out the networking related code into a separate function
would move towards not having forked code for all of these different
network boot methods. at least, that's my hope.
---
 scripts/functions | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'scripts/functions')

diff --git a/scripts/functions b/scripts/functions
index db223cd..fdd808f 100644
--- a/scripts/functions
+++ b/scripts/functions
@@ -270,3 +270,38 @@ parse_numeric() {
 	chmod 600 /dev/root
 	ROOT=/dev/root
 }
+
+configure_networking()
+{
+	# support ip options see linux sources Documentation/nfsroot.txt
+	case ${IPOPTS} in
+	none|off)
+		# Do nothing
+		;;
+	""|on|any)
+		# Bring up device
+		ipconfig ${DEVICE}
+		;;
+	dhcp|bootp|rarp|both)
+		ipconfig -c ${IPOPTS} -d ${DEVICE}
+		;;
+	*)
+		ipconfig -d $IPOPTS
+
+		# grab device entry from ip option
+		NEW_DEVICE=${IPOPTS#*:*:*:*:*:*}
+		if [ "${NEW_DEVICE}" != "${IPOPTS}" ]; then
+			NEW_DEVICE=${NEW_DEVICE%:*}
+		else
+			# wrong parse, possibly only a partial string
+			NEW_DEVICE=
+		fi
+		if [ -n "${NEW_DEVICE}" ]; then
+			DEVICE="${NEW_DEVICE}"
+		fi
+		;;
+	esac
+
+	# source relevant ipconfig output
+	. /tmp/net-${DEVICE}.conf
+}
-- 
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