fix a race condition where ppp interfaces were not added to the firewall properly when brought up at boot time - save the ppp interface unit number in the network state

SVN-Revision: 13402

package/ppp/files/etc/ppp/ip-up

@@ -6,8 +6,11 @@ PPP_SPEED="$3"
 PPP_LOCAL="$4"
 PPP_REMOTE="$5"
 PPP_IPPARAM="$6"
+PPP_UNIT="${PPP_IFACE##ppp}"
+
 export PPP_IFACE PPP_TTY PPP_SPEED PPP_LOCAL PPP_REMOTE PPP_IPPARAM
 [ -z "$PPP_IPPARAM" -o -z "$PPP_LOCAL" ] || {
+	uci_set_state network "$PPP_IPPARAM" unit "$PPP_UNIT"
 	uci_set_state network "$PPP_IPPARAM" ipaddr "$PPP_LOCAL"
 	uci_set_state network "$PPP_IPPARAM" gateway "$PPP_REMOTE"
 }