From c29500c7b461603790126f7591fcb6dc3b9634e7 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Fri, 16 Jul 2021 17:27:59 +0200
Subject: [dhcpc-busybox] Add option to ignore secondary interfaces, improve

.... resolv.conf awk generator
---
 .../data/opt/openslx/scripts/systemd-udhcpc        | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100755 core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc

(limited to 'core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc')

diff --git a/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc b/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc
new file mode 100755
index 00000000..49d0180d
--- /dev/null
+++ b/core/modules/dhcpc-busybox/data/opt/openslx/scripts/systemd-udhcpc
@@ -0,0 +1,34 @@
+#!/bin/bash
+# For arrays
+
+net_if="$1"
+net_ip="$(ip addr show dev "${net_if}" | grep -m1 '^\s*inet ' | awk -F " " '{print $2}' | awk -F "/" '{print $1}')"
+
+declare -a udhcpc_opts
+if [ -n "$net_ip" ]; then
+	udhcpc_opts+=( "-r" "$net_ip" )
+fi
+
+. /opt/openslx/config
+primary="${SLX_BRIDGE:-br0}"
+
+if [ "${SLX_DHCP_SECONDARY:-yes}" != "yes" ]; then
+	echo "No DHCP on other NICs requested. Doing nothing."
+	exit 0
+fi
+
+if [ "$primary" = "$net_if" ] && [ "$SLX_NET_DHCP_UUID" = "yes" ]; then
+	uid="$( dmidecode -s system-uuid | sed -r 's/^(..)(..)(..)(..)-(..)(..)-(..)(..)-(....)-/00\4\3\2\1\6\5\8\7\9/' )"
+	if [ "${#uid}" = 34 ]; then
+		echo "Using SMBIOS uid for DHCP"
+		udhcpc_opts+=( "-x" "0x3d:$uid" )
+	fi
+fi
+
+exec /opt/openslx/sbin/udhcpc "${udhcpc_opts[@]}" \
+	-O domain -O nissrv -O nisdomain -O wpad -O search -O wins \
+	-s /opt/openslx/scripts/udhcpc-openslx \
+	-i "${net_if}" -f -t 8
+
+slxlog "udhcpc" "Could not run 'udhcpc ${udhcpc_opts[*]}' on ${net_if}."
+exit 1
-- 
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