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269 lines
11 KiB
C
269 lines
11 KiB
C
/**
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* @file sys/driver.c
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*
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* @copyright 2015-2018 Bill Zissimopoulos
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*/
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/*
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* This file is part of WinFsp.
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*
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* You can redistribute it and/or modify it under the terms of the GNU
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* General Public License version 3 as published by the Free Software
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* Foundation.
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*
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* Licensees holding a valid commercial license may use this file in
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* accordance with the commercial license agreement provided with the
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* software.
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*/
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#include <sys/driver.h>
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/*
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* Define the following macro to include FspUnload.
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*
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* Note that this driver is no longer unloadable.
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* See the comments in DriverEntry as to why!
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*/
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//#define FSP_UNLOAD
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DRIVER_INITIALIZE DriverEntry;
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static VOID FspDriverMultiVersionInitialize(VOID);
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#if defined(FSP_UNLOAD)
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DRIVER_UNLOAD FspUnload;
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#endif
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(INIT, DriverEntry)
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#pragma alloc_text(INIT, FspDriverMultiVersionInitialize)
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#if defined(FSP_UNLOAD)
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#pragma alloc_text(PAGE, FspUnload)
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#endif
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#endif
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NTSTATUS DriverEntry(
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PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath)
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{
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FSP_ENTER_DRV();
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/* setup the driver object */
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#if defined(FSP_UNLOAD)
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DriverObject->DriverUnload = FspUnload;
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#endif
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DriverObject->MajorFunction[IRP_MJ_CREATE] = FspCreate;
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DriverObject->MajorFunction[IRP_MJ_CLOSE] = FspClose;
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DriverObject->MajorFunction[IRP_MJ_READ] = FspRead;
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DriverObject->MajorFunction[IRP_MJ_WRITE] = FspWrite;
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DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] = FspQueryInformation;
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DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] = FspSetInformation;
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DriverObject->MajorFunction[IRP_MJ_QUERY_EA] = FspQueryEa;
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DriverObject->MajorFunction[IRP_MJ_SET_EA] = FspSetEa;
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DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = FspFlushBuffers;
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DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = FspQueryVolumeInformation;
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DriverObject->MajorFunction[IRP_MJ_SET_VOLUME_INFORMATION] = FspSetVolumeInformation;
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DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] = FspDirectoryControl;
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DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = FspFileSystemControl;
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DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = FspDeviceControl;
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DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = FspShutdown;
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DriverObject->MajorFunction[IRP_MJ_LOCK_CONTROL] = FspLockControl;
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DriverObject->MajorFunction[IRP_MJ_CLEANUP] = FspCleanup;
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DriverObject->MajorFunction[IRP_MJ_QUERY_SECURITY] = FspQuerySecurity;
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DriverObject->MajorFunction[IRP_MJ_SET_SECURITY] = FspSetSecurity;
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/* setup the I/O prepare/complete functions */
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FspIopPrepareFunction[IRP_MJ_CREATE] = FspFsvolCreatePrepare;
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FspIopCompleteFunction[IRP_MJ_CREATE] = FspFsvolCreateComplete;
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FspIopCompleteFunction[IRP_MJ_CLOSE] = FspFsvolCloseComplete;
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FspIopPrepareFunction[IRP_MJ_READ] = FspFsvolReadPrepare;
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FspIopCompleteFunction[IRP_MJ_READ] = FspFsvolReadComplete;
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FspIopPrepareFunction[IRP_MJ_WRITE] = FspFsvolWritePrepare;
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FspIopCompleteFunction[IRP_MJ_WRITE] = FspFsvolWriteComplete;
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FspIopCompleteFunction[IRP_MJ_QUERY_INFORMATION] = FspFsvolQueryInformationComplete;
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FspIopPrepareFunction[IRP_MJ_SET_INFORMATION] = FspFsvolSetInformationPrepare;
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FspIopCompleteFunction[IRP_MJ_SET_INFORMATION] = FspFsvolSetInformationComplete;
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FspIopCompleteFunction[IRP_MJ_QUERY_EA] = FspFsvolQueryEaComplete;
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FspIopCompleteFunction[IRP_MJ_SET_EA] = FspFsvolSetEaComplete;
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FspIopCompleteFunction[IRP_MJ_FLUSH_BUFFERS] = FspFsvolFlushBuffersComplete;
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FspIopCompleteFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] = FspFsvolQueryVolumeInformationComplete;
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FspIopCompleteFunction[IRP_MJ_SET_VOLUME_INFORMATION] = FspFsvolSetVolumeInformationComplete;
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FspIopPrepareFunction[IRP_MJ_DIRECTORY_CONTROL] = FspFsvolDirectoryControlPrepare;
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FspIopCompleteFunction[IRP_MJ_DIRECTORY_CONTROL] = FspFsvolDirectoryControlComplete;
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FspIopCompleteFunction[IRP_MJ_FILE_SYSTEM_CONTROL] = FspFsvolFileSystemControlComplete;
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FspIopCompleteFunction[IRP_MJ_DEVICE_CONTROL] = FspFsvolDeviceControlComplete;
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FspIopCompleteFunction[IRP_MJ_LOCK_CONTROL] = FspFsvolLockControlComplete;
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FspIopCompleteFunction[IRP_MJ_CLEANUP] = FspFsvolCleanupComplete;
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FspIopCompleteFunction[IRP_MJ_QUERY_SECURITY] = FspFsvolQuerySecurityComplete;
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FspIopCompleteFunction[IRP_MJ_SET_SECURITY] = FspFsvolSetSecurityComplete;
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/* setup fast I/O and resource acquisition */
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FspFastIoDispatch.SizeOfFastIoDispatch = sizeof FspFastIoDispatch;
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FspFastIoDispatch.FastIoCheckIfPossible = FspFastIoCheckIfPossible;
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//FspFastIoDispatch.FastIoRead = 0;
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//FspFastIoDispatch.FastIoWrite = 0;
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//FspFastIoDispatch.FastIoQueryBasicInfo = 0;
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//FspFastIoDispatch.FastIoQueryStandardInfo = 0;
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//FspFastIoDispatch.FastIoLock = 0;
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//FspFastIoDispatch.FastIoUnlockSingle = 0;
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//FspFastIoDispatch.FastIoUnlockAll = 0;
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//FspFastIoDispatch.FastIoUnlockAllByKey = 0;
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//FspFastIoDispatch.FastIoDeviceControl = 0;
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FspFastIoDispatch.AcquireFileForNtCreateSection = FspAcquireFileForNtCreateSection;
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FspFastIoDispatch.ReleaseFileForNtCreateSection = FspReleaseFileForNtCreateSection;
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//FspFastIoDispatch.FastIoDetachDevice = 0;
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//FspFastIoDispatch.FastIoQueryNetworkOpenInfo = 0;
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FspFastIoDispatch.AcquireForModWrite = FspAcquireForModWrite;
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//FspFastIoDispatch.MdlRead = 0;
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//FspFastIoDispatch.MdlReadComplete = 0;
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//FspFastIoDispatch.PrepareMdlWrite = 0;
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//FspFastIoDispatch.MdlWriteComplete = 0;
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//FspFastIoDispatch.FastIoReadCompressed = 0;
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//FspFastIoDispatch.FastIoWriteCompressed = 0;
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//FspFastIoDispatch.MdlReadCompleteCompressed = 0;
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//FspFastIoDispatch.MdlWriteCompleteCompressed = 0;
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//FspFastIoDispatch.FastIoQueryOpen = 0;
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FspFastIoDispatch.ReleaseForModWrite = FspReleaseForModWrite;
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FspFastIoDispatch.AcquireForCcFlush = FspAcquireForCcFlush;
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FspFastIoDispatch.ReleaseForCcFlush = FspReleaseForCcFlush;
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FspCacheManagerCallbacks.AcquireForLazyWrite = FspAcquireForLazyWrite;
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FspCacheManagerCallbacks.ReleaseFromLazyWrite = FspReleaseFromLazyWrite;
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FspCacheManagerCallbacks.AcquireForReadAhead = FspAcquireForReadAhead;
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FspCacheManagerCallbacks.ReleaseFromReadAhead = FspReleaseFromReadAhead;
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#pragma prefast(suppress:28175, "We are a filesystem: ok to access FastIoDispatch")
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DriverObject->FastIoDispatch = &FspFastIoDispatch;
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BOOLEAN InitDoneGRes = FALSE, InitDonePsBuf = FALSE;
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UNICODE_STRING DeviceSddl;
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UNICODE_STRING DeviceName;
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FspDriverObject = DriverObject;
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ExInitializeResourceLite(&FspDeviceGlobalResource);
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InitDoneGRes = TRUE;
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FspDriverMultiVersionInitialize();
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Result = FspProcessBufferInitialize();
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if (!NT_SUCCESS(Result))
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goto exit;
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InitDonePsBuf = TRUE;
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/* create the file system control device objects */
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RtlInitUnicodeString(&DeviceSddl, L"" FSP_FSCTL_DEVICE_SDDL);
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RtlInitUnicodeString(&DeviceName, L"\\Device\\" FSP_FSCTL_DISK_DEVICE_NAME);
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Result = FspDeviceCreateSecure(FspFsctlDeviceExtensionKind, 0,
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&DeviceName, FILE_DEVICE_DISK_FILE_SYSTEM, FILE_DEVICE_SECURE_OPEN,
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&DeviceSddl, &FspFsctlDeviceClassGuid,
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&FspFsctlDiskDeviceObject);
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if (!NT_SUCCESS(Result))
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goto exit;
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RtlInitUnicodeString(&DeviceName, L"\\Device\\" FSP_FSCTL_NET_DEVICE_NAME);
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Result = FspDeviceCreateSecure(FspFsctlDeviceExtensionKind, 0,
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&DeviceName, FILE_DEVICE_NETWORK_FILE_SYSTEM, FILE_DEVICE_SECURE_OPEN,
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&DeviceSddl, &FspFsctlDeviceClassGuid,
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&FspFsctlNetDeviceObject);
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if (!NT_SUCCESS(Result))
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goto exit;
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Result = FspDeviceCreate(FspFsmupDeviceExtensionKind, 0,
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FILE_DEVICE_NETWORK_FILE_SYSTEM, FILE_REMOTE_DEVICE,
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&FspFsmupDeviceObject);
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if (!NT_SUCCESS(Result))
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goto exit;
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Result = FspDeviceInitialize(FspFsctlDiskDeviceObject);
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ASSERT(STATUS_SUCCESS == Result);
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Result = FspDeviceInitialize(FspFsctlNetDeviceObject);
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ASSERT(STATUS_SUCCESS == Result);
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Result = FspDeviceInitialize(FspFsmupDeviceObject);
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ASSERT(STATUS_SUCCESS == Result);
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RtlInitUnicodeString(&DeviceName, L"\\Device\\" FSP_FSCTL_MUP_DEVICE_NAME);
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Result = FsRtlRegisterUncProviderEx(&FspMupHandle,
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&DeviceName, FspFsmupDeviceObject, 0);
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if (!NT_SUCCESS(Result))
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goto exit;
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/*
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* Register our "disk" device as a file system. We do not register our "net" device
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* as a file system; we register with the MUP instead.
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*
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* Please note that the call below makes our driver unloadable. In fact the driver
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* remains unloadable even if we issue an IoUnregisterFileSystem() call immediately
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* after our IoRegisterFileSystem() call! Some system component appears to keep an
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* extra reference to our device somewhere.
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*/
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IoRegisterFileSystem(FspFsctlDiskDeviceObject);
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Result = STATUS_SUCCESS;
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exit:
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if (!NT_SUCCESS(Result))
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{
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if (0 != FspFsmupDeviceObject)
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FspDeviceDelete(FspFsmupDeviceObject);
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if (0 != FspFsctlNetDeviceObject)
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FspDeviceDelete(FspFsctlNetDeviceObject);
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if (0 != FspFsctlDiskDeviceObject)
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FspDeviceDelete(FspFsctlDiskDeviceObject);
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if (InitDonePsBuf)
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FspProcessBufferFinalize();
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if (InitDoneGRes)
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ExDeleteResourceLite(&FspDeviceGlobalResource);
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}
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#pragma prefast(suppress:28175, "We are in DriverEntry: ok to access DriverName")
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FSP_LEAVE_DRV("DriverName=\"%wZ\", RegistryPath=\"%wZ\"",
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&DriverObject->DriverName, RegistryPath);
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}
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static VOID FspDriverMultiVersionInitialize(VOID)
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{
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FspProcessorCount = KeQueryActiveProcessorCount(0);
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#pragma prefast(suppress:30035, "FspDriverMultiVersionInitialize is called from DriverEntry")
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ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
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if (RtlIsNtDdiVersionAvailable(NTDDI_WIN7))
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{
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UNICODE_STRING Name;
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RtlInitUnicodeString(&Name, L"CcCoherencyFlushAndPurgeCache");
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FspMvCcCoherencyFlushAndPurgeCache =
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(FSP_MV_CcCoherencyFlushAndPurgeCache *)(UINT_PTR)MmGetSystemRoutineAddress(&Name);
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}
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if (RtlIsNtDdiVersionAvailable(NTDDI_WIN8))
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FspMvMdlMappingNoWrite = MdlMappingNoWrite;
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}
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#if defined(FSP_UNLOAD)
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VOID FspUnload(
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PDRIVER_OBJECT DriverObject)
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{
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FSP_ENTER_VOID(PAGED_CODE());
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FsRtlDeregisterUncProvider(FspMupHandle);
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FspFsctlDiskDeviceObject = 0;
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FspFsctlNetDeviceObject = 0;
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FspFsmupDeviceObject = 0;
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//FspDeviceDeleteAll();
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ExDeleteResourceLite(&FspDeviceGlobalResource);
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FspDriverObject = 0;
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FspProcessBufferFinalize();
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#pragma prefast(suppress:28175, "We are in DriverUnload: ok to access DriverName")
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FSP_LEAVE_VOID("DriverName=\"%wZ\"",
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&DriverObject->DriverName);
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}
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#endif
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PDRIVER_OBJECT FspDriverObject;
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PDEVICE_OBJECT FspFsctlDiskDeviceObject;
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PDEVICE_OBJECT FspFsctlNetDeviceObject;
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PDEVICE_OBJECT FspFsmupDeviceObject;
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HANDLE FspMupHandle;
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FAST_IO_DISPATCH FspFastIoDispatch;
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CACHE_MANAGER_CALLBACKS FspCacheManagerCallbacks;
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ULONG FspProcessorCount;
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FSP_MV_CcCoherencyFlushAndPurgeCache *FspMvCcCoherencyFlushAndPurgeCache;
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ULONG FspMvMdlMappingNoWrite = 0;
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