network: Allow passing custom options to dhcpcd

This is useful for debugging.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/initscripts/networking/functions.network

@@ -59,8 +59,9 @@ dhcpcd_is_running() {
 
 dhcpcd_start() {
 	# This function will start a dhcpcd on a speciefied device.
-
 	local device="$1"
+	shift
+
 	local dhcp_start=()
 
 	boot_mesg -n "Starting dhcpcd on the ${device} interface..."
@@ -84,6 +85,9 @@ dhcpcd_start() {
 		dhcp_start+=( "--static" "mtu=${RED_DHCP_FORCE_MTU}" )
 	fi
 
+	# Append any further command line options
+	dhcp_start+=( $@ )
+
 	# Start dhcpcd.
 	/sbin/dhcpcd "${dhcp_start[@]}" ${device} >/dev/null 2>&1
 	ret="$?"