more lwIP physical interfaces

cores/esp8266/lwIPDhcpServer-NonOS.cpp

@@ -0,0 +1,43 @@
+
+// STARTS/STOPS DHCP SERVER ON WIFI AP INTERFACE
+// these functions must exists as-is with "C" interface,
+// nonos-sdk calls them at boot and later
+
+#include <lwip/init.h> // LWIP_VERSION
+
+#if LWIP_VERSION_MAJOR != 1
+
+#include <lwip/netif.h>
+#include "lwIPDhcpServer.h"
+
+extern netif netif_git[2];
+
+// global DHCP instance for softAP interface
+DhcpServer dhcpSoftAP(&netif_git[SOFTAP_IF]);
+
+extern "C"
+{
+
+void dhcps_start (struct ip_info *info, netif* apnetif)
+{
+    // apnetif is esp interface, replaced by lwip2's
+    // netif_git[SOFTAP_IF] interface in constructor
+    (void)apnetif;
+
+#if 0
+    // can't use C++ now, global ctors are not initialized yet
+    dhcpSoftAP.begin(info);
+#else
+    (void)info;
+    fw_has_started_softap_dhcps = 1;
+#endif
+}
+
+void dhcps_stop ()
+{
+    dhcpSoftAP.end();
+}
+
+} // extern "C"
+
+#endif // LWIP_VERSION_MAJOR != 1