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/*
* TAP-Win32/TAP-Win64 -- 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) 2002-2007 OpenVPN Solutions LLC,
* and is released under the GPL version 2 (see below), however due
* to the extra costs of supporting Windows Vista, OpenVPN Solutions
* LLC reserves the right to change the terms of the TAP-Win32/TAP-Win64
* license for versions 9.1 and higher prior to the official release of
* OpenVPN 2.1.
*
* 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
*/
#ifndef TAP_PROTOTYPES_DEFINED
#define TAP_PROTOTYPES_DEFINED
NTSTATUS DriverEntry
(
IN PDRIVER_OBJECT p_DriverObject,
IN PUNICODE_STRING p_RegistryPath
);
VOID TapDriverUnload
(
IN PDRIVER_OBJECT p_DriverObject
);
NDIS_STATUS AdapterCreate
(
OUT PNDIS_STATUS p_ErrorStatus,
OUT PUINT p_MediaIndex,
IN PNDIS_MEDIUM p_Media,
IN UINT p_MediaCount,
IN NDIS_HANDLE p_AdapterHandle,
IN NDIS_HANDLE p_ConfigurationHandle
);
VOID AdapterHalt
(
IN NDIS_HANDLE p_AdapterContext
);
VOID AdapterFreeResources
(
TapAdapterPointer p_Adapter
);
NDIS_STATUS AdapterReset
(
OUT PBOOLEAN p_AddressingReset,
IN NDIS_HANDLE p_AdapterContext
);
NDIS_STATUS AdapterQuery
(
IN NDIS_HANDLE p_AdapterContext,
IN NDIS_OID p_OID,
IN PVOID p_Buffer,
IN ULONG p_BufferLength,
OUT PULONG p_BytesWritten,
OUT PULONG p_BytesNeeded
);
NDIS_STATUS AdapterModify
(
IN NDIS_HANDLE p_AdapterContext,
IN NDIS_OID p_OID,
IN PVOID p_Buffer,
IN ULONG p_BufferLength,
OUT PULONG p_BytesRead,
OUT PULONG p_BytesNeeded
);
NDIS_STATUS AdapterTransmit
(
IN NDIS_HANDLE p_AdapterContext,
IN PNDIS_PACKET p_Packet,
IN UINT p_Flags
);
NDIS_STATUS AdapterReceive
(
OUT PNDIS_PACKET p_Packet,
OUT PUINT p_Transferred,
IN NDIS_HANDLE p_AdapterContext,
IN NDIS_HANDLE p_ReceiveContext,
IN UINT p_Offset,
IN UINT p_ToTransfer
);
NTSTATUS TapDeviceHook
(
IN PDEVICE_OBJECT p_DeviceObject,
IN PIRP p_IRP
);
NDIS_STATUS CreateTapDevice
(
TapExtensionPointer p_Extension,
const char *p_Name
);
VOID DestroyTapDevice
(
TapExtensionPointer p_Extension
);
VOID TapDeviceFreeResources
(
TapExtensionPointer p_Extension
);
NTSTATUS CompleteIRP
(
IN PIRP p_IRP,
IN TapPacketPointer p_PacketBuffer,
IN CCHAR PriorityBoost
);
VOID CancelIRPCallback
(
IN PDEVICE_OBJECT p_DeviceObject,
IN PIRP p_IRP
);
VOID CancelIRP
(
TapExtensionPointer p_Extension,
IN PIRP p_IRP,
BOOLEAN callback
);
VOID FlushQueues
(
TapExtensionPointer p_Extension
);
VOID ResetTapAdapterState
(
TapAdapterPointer p_Adapter
);
BOOLEAN ProcessARP
(
TapAdapterPointer p_Adapter,
const PARP_PACKET src,
const IPADDR adapter_ip,
const IPADDR ip_network,
const IPADDR ip_netmask,
const MACADDR mac
);
VOID SetMediaStatus
(
TapAdapterPointer p_Adapter,
BOOLEAN state
);
VOID InjectPacket
(
TapAdapterPointer p_Adapter,
UCHAR *packet,
const unsigned int len
);
VOID CheckIfDhcpAndTunMode
(
TapAdapterPointer p_Adapter
);
VOID HookDispatchFunctions();
#if ENABLE_NONADMIN
#if DDKVER < 5600
/*
* Better solution for use on Vista DDK, but possibly not compatible with
* earlier DDKs:
*
* Eliminate the definition of SECURITY_DESCRIPTOR (and even ZwSetSecurityObject),
* and at the top of tapdrv.c change:
*
* #include <ndis.h>
* #include <ntstrsafe.h>
* #include <ntddk.h>
*
* To
*
* #include <ntifs.h>
* #include <ndis.h>
* #include <ntstrsafe.h>
*/
typedef struct _SECURITY_DESCRIPTOR {
unsigned char opaque[64];
} SECURITY_DESCRIPTOR;
NTSYSAPI
NTSTATUS
NTAPI
ZwSetSecurityObject (
IN HANDLE Handle,
IN SECURITY_INFORMATION SecurityInformation,
IN PSECURITY_DESCRIPTOR SecurityDescriptor);
#endif
VOID AllowNonAdmin (TapExtensionPointer p_Extension);
#endif
#if PACKET_TRUNCATION_CHECK
VOID IPv4PacketSizeVerify
(
const UCHAR *data,
ULONG length,
BOOLEAN tun,
const char *prefix,
LONG *counter
);
#endif
#endif
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