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Diffstat (limited to 'windows/TapDriver6/constants.h')
| -rw-r--r-- | windows/TapDriver6/constants.h | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/windows/TapDriver6/constants.h b/windows/TapDriver6/constants.h new file mode 100644 index 00000000..31b2d545 --- /dev/null +++ b/windows/TapDriver6/constants.h @@ -0,0 +1,195 @@ +/* + * TAP-Windows -- A kernel driver to provide virtual tap + * device functionality on Windows. + * + * This code was inspired by the CIPE-Win32 driver by Damion K. Wilson. + * + * This source code is Copyright (C) 2002-2014 OpenVPN Technologies, Inc., + * 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 PRODUCT_TAP_DEVICE_DESCRIPTION + + +// +// Update the driver version number every time you release a new driver +// The high word is the major version. The low word is the minor version. +// Also make sure that VER_FILEVERSION specified in the .RC file also +// matches with the driver version because NDISTESTER checks for that. +// +#ifndef TAP_DRIVER_MAJOR_VERSION + +#define TAP_DRIVER_MAJOR_VERSION 0x04 +#define TAP_DRIVER_MINOR_VERSION 0x02 + +#endif + +#define TAP_DRIVER_VENDOR_VERSION ((TAP_DRIVER_MAJOR_VERSION << 16) | TAP_DRIVER_MINOR_VERSION) + +// +// Define the NDIS miniport interface version that this driver targets. +// +#if defined(NDIS60_MINIPORT) +# define TAP_NDIS_MAJOR_VERSION 6 +# define TAP_NDIS_MINOR_VERSION 0 +#elif defined(NDIS61_MINIPORT) +# define TAP_NDIS_MAJOR_VERSION 6 +# define TAP_NDIS_MINOR_VERSION 1 +#elif defined(NDIS620_MINIPORT) +# define TAP_NDIS_MAJOR_VERSION 6 +# define TAP_NDIS_MINOR_VERSION 20 +#elif defined(NDIS630_MINIPORT) +# define TAP_NDIS_MAJOR_VERSION 6 +# define TAP_NDIS_MINOR_VERSION 30 +#else +#define TAP_NDIS_MAJOR_VERSION 5 +#define TAP_NDIS_MINOR_VERSION 0 +#endif + +//=========================================================== +// 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 VLAN_TAG_SIZE 4 + +//=========================================================== +// Medium properties +//=========================================================== + +#define TAP_FRAME_HEADER_SIZE ETHERNET_HEADER_SIZE +#define TAP_FRAME_MAX_DATA_SIZE ETHERNET_MTU +#define TAP_MAX_FRAME_SIZE (TAP_FRAME_HEADER_SIZE + TAP_FRAME_MAX_DATA_SIZE) +#define TAP_MIN_FRAME_SIZE 60 + +#define TAP_MEDIUM_TYPE NdisMedium802_3 + +//=========================================================== +// Physical adapter properties +//=========================================================== + +// The bus that connects the adapter to the PC. +// (Example: PCI adapters should use NdisInterfacePci). +#define TAP_INTERFACE_TYPE NdisInterfaceInternal + +#define TAP_VENDOR_DESC PRODUCT_TAP_WIN_DEVICE_DESCRIPTION + +// Highest byte is the NIC byte plus three vendor bytes. This is normally +// obtained from the NIC. +#define TAP_VENDOR_ID 0x00FFFFFF + +// If you have physical hardware on 802.3, use NdisPhysicalMedium802_3. +#define TAP_PHYSICAL_MEDIUM NdisPhysicalMediumUnspecified + +// Claim to be 100mbps duplex +#define MEGABITS_PER_SECOND 1000000ULL +#define TAP_XMIT_SPEED (100ULL*MEGABITS_PER_SECOND) +#define TAP_RECV_SPEED (100ULL*MEGABITS_PER_SECOND) + +// Max number of multicast addresses supported in hardware +#define TAP_MAX_MCAST_LIST 32 + +#define TAP_MAX_LOOKAHEAD TAP_FRAME_MAX_DATA_SIZE +#define TAP_BUFFER_SIZE TAP_MAX_FRAME_SIZE + +// Set this value to TRUE if there is a physical adapter. +#define TAP_HAS_PHYSICAL_CONNECTOR FALSE +#define TAP_ACCESS_TYPE NET_IF_ACCESS_BROADCAST +#define TAP_DIRECTION_TYPE NET_IF_DIRECTION_SENDRECEIVE +#define TAP_CONNECTION_TYPE NET_IF_CONNECTION_DEDICATED + +// This value must match the *IfType in the driver .inf file +#define TAP_IFTYPE IF_TYPE_ETHERNET_CSMACD + +// +// This is a virtual device, so it can tolerate surprise removal and +// suspend. Ensure the correct flags are set for your hardware. +// +#define TAP_ADAPTER_ATTRIBUTES_FLAGS (\ + NDIS_MINIPORT_ATTRIBUTES_SURPRISE_REMOVE_OK | NDIS_MINIPORT_ATTRIBUTES_NDIS_WDM) + +#define TAP_SUPPORTED_FILTERS ( \ + NDIS_PACKET_TYPE_DIRECTED | \ + NDIS_PACKET_TYPE_MULTICAST | \ + NDIS_PACKET_TYPE_BROADCAST | \ + NDIS_PACKET_TYPE_ALL_LOCAL | \ + NDIS_PACKET_TYPE_PROMISCUOUS | \ + NDIS_PACKET_TYPE_ALL_MULTICAST) + +#define TAP_MAX_MCAST_LIST 32 // Max length of multicast address list + +// +// Specify a bitmask that defines optional properties of the NIC. +// This miniport indicates receive with NdisMIndicateReceiveNetBufferLists +// function. Such a driver should set this NDIS_MAC_OPTION_TRANSFERS_NOT_PEND +// flag. +// +// NDIS_MAC_OPTION_NO_LOOPBACK tells NDIS that NIC has no internal +// loopback support so NDIS will manage loopbacks on behalf of +// this driver. +// +// NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA tells the protocol that +// our receive buffer is not on a device-specific card. If +// NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA is not set, multi-buffer +// indications are copied to a single flat buffer. +// + +#define TAP_MAC_OPTIONS (\ + NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA | \ + NDIS_MAC_OPTION_TRANSFERS_NOT_PEND | \ + NDIS_MAC_OPTION_NO_LOOPBACK) + +#define TAP_ADAPTER_CHECK_FOR_HANG_TIME_IN_SECONDS 4 + + +// NDIS 6.x miniports must support all counters in OID_GEN_STATISTICS. +#define TAP_SUPPORTED_STATISTICS (\ + NDIS_STATISTICS_FLAGS_VALID_DIRECTED_FRAMES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_MULTICAST_FRAMES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_BROADCAST_FRAMES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_BYTES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_RCV_DISCARDS | \ + NDIS_STATISTICS_FLAGS_VALID_RCV_ERROR | \ + NDIS_STATISTICS_FLAGS_VALID_DIRECTED_FRAMES_XMIT | \ + NDIS_STATISTICS_FLAGS_VALID_MULTICAST_FRAMES_XMIT | \ + NDIS_STATISTICS_FLAGS_VALID_BROADCAST_FRAMES_XMIT | \ + NDIS_STATISTICS_FLAGS_VALID_BYTES_XMIT | \ + NDIS_STATISTICS_FLAGS_VALID_XMIT_ERROR | \ + NDIS_STATISTICS_FLAGS_VALID_XMIT_DISCARDS | \ + NDIS_STATISTICS_FLAGS_VALID_DIRECTED_BYTES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_MULTICAST_BYTES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_BROADCAST_BYTES_RCV | \ + NDIS_STATISTICS_FLAGS_VALID_DIRECTED_BYTES_XMIT | \ + NDIS_STATISTICS_FLAGS_VALID_MULTICAST_BYTES_XMIT | \ + NDIS_STATISTICS_FLAGS_VALID_BROADCAST_BYTES_XMIT) + + +#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 INJECT_QUEUE_SIZE 16 // DHCP/ARP -> tap injection queue + +#define TAP_LITTLE_ENDIAN // affects ntohs, htonl, etc. functions |