iup: add uci-default script to set reqopts

iup/files/etc/uci-defaults/85-iup-set-dhcp-reqopts

@@ -0,0 +1,57 @@
+#!/bin/sh
+
+. /lib/functions.sh
+
+management_interfaces() {
+	local DHCP_IFACES=""
+
+	is_notbridged_dhcp() {
+		local config="$1"
+		local proto="$(uci -q get network.$config.proto)"
+		local typ="$(uci -q get network.$config.type)"
+		if [ "$proto" == "dhcp" -a "$typ" != "bridge" ]; then
+			DHCP_IFACES="$DHCP_IFACES $config"
+		fi
+	}
+
+	config_load network
+	config_foreach is_notbridged_dhcp interface
+	echo $DHCP_IFACES
+}
+
+set_iup_reqopts() {
+	### Ask for IUP related DHCP options only if IUP is enabled ###
+	new_reqopts() {
+		local net=$1
+		local enabled="$(uci -q get provisioning.iup.enabled)"
+		enabled="${enabled:-on}"
+		local newreqopts=
+		local baseopts=
+		local reqopts="$(uci -q get network.$net.reqopts)"
+		local iupopts="66 67 128 224 225 226"
+		local ropt iopt
+		local net
+		for ropt in $reqopts; do
+			case $ropt in
+				66|67|128|224|225|226) ;;
+				*) baseopts="$baseopts $ropt" ;;
+			esac
+		done
+		ropt=""
+		reqopts="$baseopts $iupopts"
+		for ropt in $reqopts; do
+			case $ropt in
+				66|67|128|224|225|226) [ $enabled == "on" ] && newreqopts="$newreqopts $ropt" ;;
+				*) newreqopts="$newreqopts $ropt" ;;
+			esac
+		done
+		newreqopts="$(echo $newreqopts | tr ' ' '\n' | sort -n | tr '\n' ' ' | sed 's/^[ \t]*//;s/[ \t]*$//')"
+		echo "$newreqopts"
+	}
+	for net in $(management_interfaces); do
+		uci -q set network.$net.reqopts="$(new_reqopts $net)"
+	done
+	uci commit network
+}
+
+set_iup_reqopts