mirror of
https://github.com/zerotier/ZeroTierOne.git
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53 lines
2.2 KiB
C
53 lines
2.2 KiB
C
/*
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* TAP-Windows -- A kernel driver to provide virtual tap
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* device functionality on Windows.
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*
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* This code was inspired by the CIPE-Win32 driver by Damion K. Wilson.
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*
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* This source code is Copyright (C) 2002-2010 OpenVPN Technologies, Inc.,
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* and is released under the GPL version 2 (see below).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see the file COPYING included with this
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* distribution); if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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//====================================================================
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// Product and Version public settings
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//====================================================================
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#define PRODUCT_STRING PRODUCT_TAP_DEVICE_DESCRIPTION
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#define TAP_NDIS_MAJOR_VERSION 5
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#define TAP_NDIS_MINOR_VERSION 0
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//===========================================================
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// Driver constants
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//===========================================================
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#define ETHERNET_HEADER_SIZE (sizeof (ETH_HEADER))
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#define ETHERNET_MTU 2800 // ZeroTier One MTU
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#define ETHERNET_PACKET_SIZE (ETHERNET_MTU + ETHERNET_HEADER_SIZE)
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#define DEFAULT_PACKET_LOOKAHEAD (ETHERNET_PACKET_SIZE)
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#define NIC_MAX_MCAST_LIST 32 // Max length of multicast address list
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#define MINIMUM_MTU 576 // USE TCP Minimum MTU
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#define MAXIMUM_MTU 65536 // IP maximum MTU
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#define PACKET_QUEUE_SIZE 64 // tap -> userspace queue size
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#define IRP_QUEUE_SIZE 16 // max number of simultaneous i/o operations from userspace
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#define INJECT_QUEUE_SIZE 16 // DHCP/ARP -> tap injection queue
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#define TAP_LITTLE_ENDIAN // affects ntohs, htonl, etc. functions
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