Add dhcpcd configuration

- Service file for dhcpcd master service
 - Service template file for interfaces
 - Service symlink for each configured interface
 - Get DHCP address on raspberry pi 3 for ethernet port

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>

board/alix/INIT

@@ -1,2 +1,3 @@
 GETTY_TTY="ttyS0"
 HWCLOCK="yes"
+DHCP_PORTS=""

board/rpi3/INIT

@@ -1,2 +1,3 @@
 GETTY_TTY="tty1 tty2 tty3 tty4 tty5 tty6 tty7"
+DHCP_PORTS="port0"
 HWCLOCK="no"

pkg/init/build

@@ -57,5 +57,14 @@ deploy() {
 		ln -s "/share/init/agetty" "$DEPLOY/etc/init.d/agetty@$svc"
 	done
 
-	unset -v i GETTY_TTY HWCLOCK
+	if [ ! -z "$DHCP_PORTS" ]; then
+		ln -s "/share/init/dhcpcdmaster" \
+			"$DEPLOY/etc/init.d/dhcpcdmaster"
+	fi
+
+	for svc in $DHCP_PORTS; do
+		ln -s "/share/init/dhcpcd" "$DEPLOY/etc/init.d/dhcpcd@$svc"
+	done
+
+	unset -v i GETTY_TTY HWCLOCK DHCP_PORTS
 }

pkg/init/share/init/dhcpcd

@@ -0,0 +1,6 @@
+description "DHCP client on %0"
+type once
+target boot
+after dhcpcd
+
+exec dhcpcd -n %0

pkg/init/share/init/dhcpcdmaster

@@ -0,0 +1,9 @@
+description "DHCP client - master service"
+type respawn limit 5
+target boot
+after sysinit ifrename ifcfg
+
+exec {
+	mkdir -p /var/db/dhcpcd
+	dhcpcd -B --inactive
+}

product/router/interfaces.rpi3/port0

@@ -1 +0,0 @@
-ip 192.168.0.1/24