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+/*
+ * TAP-Win32 -- A kernel driver to provide virtual tap device functionality
+ * on Windows. Originally derived from the CIPE-Win32
+ * project by Damion K. Wilson, with extensive modifications by
+ * James Yonan.
+ *
+ * All source code which derives from the CIPE-Win32 project is
+ * Copyright (C) Damion K. Wilson, 2003, and is released under the
+ * GPL version 2 (see below).
+ *
+ * All other source code is Copyright (C) 2002-2005 OpenVPN Solutions LLC,
+ * and is released under the GPL version 2 (see below).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+//====================================================================
+// Product and Version public settings
+//====================================================================
+
+#define PRODUCT_STRING "TAP-Win32 Adapter V8"
+
+#define TAP_NDIS_MAJOR_VERSION 5
+#define TAP_NDIS_MINOR_VERSION 0
+
+//===========================================================
+// Driver constants
+//===========================================================
+
+#define ETHERNET_HEADER_SIZE (sizeof (ETH_HEADER))
+#define ETHERNET_MTU 1500
+#define ETHERNET_PACKET_SIZE (ETHERNET_MTU + ETHERNET_HEADER_SIZE)
+#define DEFAULT_PACKET_LOOKAHEAD (ETHERNET_PACKET_SIZE)
+
+#define NIC_MAX_MCAST_LIST 32 // Max length of multicast address list
+
+#define MINIMUM_MTU 576 // USE TCP Minimum MTU
+#define MAXIMUM_MTU 65536 // IP maximum MTU
+
+#define PACKET_QUEUE_SIZE 64 // tap -> userspace queue size
+#define IRP_QUEUE_SIZE 16 // max number of simultaneous i/o operations from userspace
+
+#define TAP_LITTLE_ENDIAN // affects ntohs, htonl, etc. functions