mirror of
https://github.com/winfsp/winfsp.git
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sys, dll: IRP_MJ_QUERY_INFORMATION
This commit is contained in:
Bill Zissimopoulos
@ -551,6 +551,8 @@ VOID FspFsvolCreateComplete(
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FileNode->Header.FileSize.QuadPart = Response->Rsp.Create.Opened.FileInfo.FileSize;
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FileNode->UserContext = Response->Rsp.Create.Opened.UserContext;
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FileNode->IndexNumber = Response->Rsp.Create.Opened.FileInfo.IndexNumber;
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FileNode->IsDirectory = BooleanFlagOn(Response->Rsp.Create.Opened.FileInfo.FileAttributes,
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FILE_ATTRIBUTE_DIRECTORY);
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FileDesc->UserContext2 = Response->Rsp.Create.Opened.UserContext2;
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FileDesc->State.FileInfo = Response->Rsp.Create.Opened.FileInfo;
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@ -562,6 +562,7 @@ typedef struct
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PDEVICE_OBJECT FsvolDeviceObject;
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UINT64 UserContext;
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UINT64 IndexNumber;
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BOOLEAN IsDirectory;
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FSP_DEVICE_GENERIC_TABLE_ELEMENT ElementStorage;
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UNICODE_STRING FileName;
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WCHAR FileNameBuf[];
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@ -6,16 +6,40 @@
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#include <sys/driver.h>
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static NTSTATUS FspFsvolQueryAllInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryAttributeTagInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryBasicInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryInternalInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd);
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static NTSTATUS FspFsvolQueryNameInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd);
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static NTSTATUS FspFsvolQueryNetworkOpenInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo);
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static NTSTATUS FspFsvolQueryPositionInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd);
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static NTSTATUS FspFsvolQueryStandardInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd);
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static NTSTATUS FspFsvolQueryInformation(
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PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
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PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
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FSP_IOCMPL_DISPATCH FspFsvolQueryInformationComplete;
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static NTSTATUS FspFsvolSetInformation(
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PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
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PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp);
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FSP_IOCMPL_DISPATCH FspFsvolSetInformationComplete;
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FSP_DRIVER_DISPATCH FspQueryInformation;
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FSP_DRIVER_DISPATCH FspSetInformation;
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE, FspFsvolQueryAllInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryAttributeTagInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryBasicInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryInternalInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryNameInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryNetworkOpenInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryPositionInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryStandardInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryInformation)
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#pragma alloc_text(PAGE, FspFsvolQueryInformationComplete)
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#pragma alloc_text(PAGE, FspFsvolSetInformation)
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@ -24,12 +48,319 @@ FSP_DRIVER_DISPATCH FspSetInformation;
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#pragma alloc_text(PAGE, FspSetInformation)
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#endif
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static NTSTATUS FspFsvolQueryInformation(
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PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
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#define GETFILEINFO() \
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FSP_FSCTL_FILE_INFO FileInfoBuf; \
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if (0 == FileInfo) \
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{ \
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if (!FspFileNodeTryGetFileInfo((FSP_FILE_NODE *)FileObject->FsContext, &FileInfoBuf))\
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return FSP_STATUS_IOQ_POST; \
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FileInfo = &FileInfoBuf; \
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}
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static NTSTATUS FspFsvolQueryAllInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo)
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{
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PAGED_CODE();
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return STATUS_INVALID_DEVICE_REQUEST;
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if (*PBuffer + sizeof(FILE_ALL_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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PFILE_ALL_INFORMATION Info = (PFILE_ALL_INFORMATION)*PBuffer;
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if (0 == FileInfo)
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{
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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FspFileNodeAcquireShared(FileNode, Main);
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*PBuffer = (PVOID)&Info->PositionInformation;
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FspFsvolQueryPositionInformation(FileObject, PBuffer, BufferEnd);
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*PBuffer = (PVOID)&Info->StandardInformation;
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FspFsvolQueryStandardInformation(FileObject, PBuffer, BufferEnd);
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FspFileNodeRelease(FileNode, Main);
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Info->EaInformation.EaSize = 0;
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*PBuffer = (PVOID)&Info->InternalInformation;
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FspFsvolQueryInternalInformation(FileObject, PBuffer, BufferEnd);
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}
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GETFILEINFO();
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*PBuffer = (PVOID)&Info->BasicInformation;
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FspFsvolQueryBasicInformation(FileObject, PBuffer, BufferEnd, FileInfo);
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*PBuffer = (PVOID)&Info->NameInformation;
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return FspFsvolQueryNameInformation(FileObject, PBuffer, BufferEnd);
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}
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static NTSTATUS FspFsvolQueryAttributeTagInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_ATTRIBUTE_TAG_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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GETFILEINFO();
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PFILE_ATTRIBUTE_TAG_INFORMATION Info = (PFILE_ATTRIBUTE_TAG_INFORMATION)*PBuffer;
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Info->FileAttributes = FileInfo->FileAttributes;
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Info->ReparseTag = FileInfo->ReparseTag;
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*PBuffer += sizeof(FILE_ATTRIBUTE_TAG_INFORMATION);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryBasicInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_BASIC_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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GETFILEINFO();
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PFILE_BASIC_INFORMATION Info = (PFILE_BASIC_INFORMATION)*PBuffer;
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Info->CreationTime.QuadPart = FileInfo->CreationTime;
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Info->LastAccessTime.QuadPart = FileInfo->LastAccessTime;
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Info->LastWriteTime.QuadPart = FileInfo->LastWriteTime;
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Info->ChangeTime.QuadPart = FileInfo->ChangeTime;
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Info->FileAttributes = FileInfo->FileAttributes;
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*PBuffer += sizeof(FILE_BASIC_INFORMATION);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryInternalInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_INTERNAL_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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PFILE_INTERNAL_INFORMATION Info = (PFILE_INTERNAL_INFORMATION)*PBuffer;
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Info->IndexNumber.QuadPart = FileNode->IndexNumber;
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*PBuffer += sizeof(FILE_INTERNAL_INFORMATION);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryNameInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_NAME_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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NTSTATUS Result = STATUS_SUCCESS;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension =
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FspFsvolDeviceExtension(FileNode->FsvolDeviceObject);
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PFILE_NAME_INFORMATION Info = (PFILE_NAME_INFORMATION)*PBuffer;
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PUINT8 Buffer = (PUINT8)Info->FileName;
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ULONG CopyLength;
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Info->FileNameLength = FsvolDeviceExtension->VolumePrefix.Length + FileNode->FileName.Length;
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CopyLength = FsvolDeviceExtension->VolumePrefix.Length;
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if (Buffer + CopyLength > BufferEnd)
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{
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CopyLength = (ULONG)(BufferEnd - Buffer);
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Result = STATUS_BUFFER_OVERFLOW;
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}
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RtlCopyMemory(Buffer, FsvolDeviceExtension->VolumePrefix.Buffer, CopyLength);
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Buffer += CopyLength;
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CopyLength = FileNode->FileName.Length;
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if (Buffer + CopyLength > BufferEnd)
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{
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CopyLength = (ULONG)(BufferEnd - Buffer);
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Result = STATUS_BUFFER_OVERFLOW;
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}
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RtlCopyMemory(Buffer, FileNode->FileName.Buffer, CopyLength);
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Buffer += CopyLength;
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*PBuffer = Buffer;
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return Result;
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}
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static NTSTATUS FspFsvolQueryNetworkOpenInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd, const FSP_FSCTL_FILE_INFO *FileInfo)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_NETWORK_OPEN_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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PFILE_NETWORK_OPEN_INFORMATION Info = (PFILE_NETWORK_OPEN_INFORMATION)*PBuffer;
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if (0 == FileInfo)
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{
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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FspFileNodeAcquireShared(FileNode, Main);
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Info->AllocationSize = FileNode->Header.AllocationSize;
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Info->EndOfFile = FileNode->Header.FileSize;
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FspFileNodeRelease(FileNode, Main);
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}
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GETFILEINFO();
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Info->CreationTime.QuadPart = FileInfo->CreationTime;
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Info->LastAccessTime.QuadPart = FileInfo->LastAccessTime;
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Info->LastWriteTime.QuadPart = FileInfo->LastWriteTime;
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Info->ChangeTime.QuadPart = FileInfo->ChangeTime;
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Info->FileAttributes = FileInfo->FileAttributes;
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*PBuffer += sizeof(FILE_BASIC_INFORMATION);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryPositionInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_POSITION_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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PFILE_POSITION_INFORMATION Info = (PFILE_POSITION_INFORMATION)*PBuffer;
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FspFileNodeAcquireShared(FileNode, Main);
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Info->CurrentByteOffset = FileObject->CurrentByteOffset;
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FspFileNodeRelease(FileNode, Main);
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*PBuffer += sizeof(FILE_POSITION_INFORMATION);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryStandardInformation(PFILE_OBJECT FileObject,
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PUINT8 *PBuffer, PUINT8 BufferEnd)
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{
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PAGED_CODE();
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if (*PBuffer + sizeof(FILE_STANDARD_INFORMATION) > BufferEnd)
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return STATUS_BUFFER_TOO_SMALL;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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PFILE_STANDARD_INFORMATION Info = (PFILE_STANDARD_INFORMATION)*PBuffer;
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FspFileNodeAcquireShared(FileNode, Main);
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Info->AllocationSize = FileNode->Header.AllocationSize;
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Info->EndOfFile = FileNode->Header.FileSize;
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Info->NumberOfLinks = 1;
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Info->DeletePending = FileObject->DeletePending;
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Info->Directory = FileNode->IsDirectory;
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FspFileNodeRelease(FileNode, Main);
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*PBuffer += sizeof(FILE_STANDARD_INFORMATION);
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return STATUS_SUCCESS;
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}
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static NTSTATUS FspFsvolQueryInformation(
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PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
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{
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PAGED_CODE();
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/* is this a valid FileObject? */
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if (!FspFileNodeIsValid(IrpSp->FileObject->FsContext))
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return STATUS_INVALID_DEVICE_REQUEST;
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NTSTATUS Result;
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PFILE_OBJECT FileObject = IrpSp->FileObject;
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PUINT8 SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
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PUINT8 SystemBufferEnd = (PUINT8)SystemBuffer + IrpSp->Parameters.QueryFile.Length;
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switch (IrpSp->Parameters.QueryFile.FileInformationClass)
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{
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case FileAllInformation:
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Result = FspFsvolQueryAllInformation(FileObject, &SystemBuffer, SystemBufferEnd, 0);
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break;
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case FileAttributeTagInformation:
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Result = FspFsvolQueryAttributeTagInformation(FileObject, &SystemBuffer, SystemBufferEnd, 0);
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break;
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case FileBasicInformation:
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Result = FspFsvolQueryBasicInformation(FileObject, &SystemBuffer, SystemBufferEnd, 0);
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break;
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case FileCompressionInformation:
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Result = STATUS_INVALID_PARAMETER; /* no compression support */
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break;
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case FileEaInformation:
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Result = STATUS_INVALID_PARAMETER; /* no EA support currently */
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break;
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case FileHardLinkInformation:
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Result = STATUS_INVALID_PARAMETER; /* no hard link support */
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break;
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case FileInternalInformation:
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Result = FspFsvolQueryInternalInformation(FileObject, &SystemBuffer, SystemBufferEnd);
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break;
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case FileNameInformation:
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Result = FspFsvolQueryNameInformation(FileObject, &SystemBuffer, SystemBufferEnd);
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break;
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case FileNetworkOpenInformation:
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Result = FspFsvolQueryNetworkOpenInformation(FileObject, &SystemBuffer, SystemBufferEnd, 0);
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break;
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case FilePositionInformation:
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Result = FspFsvolQueryPositionInformation(FileObject, &SystemBuffer, SystemBufferEnd);
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break;
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case FileStandardInformation:
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Result = FspFsvolQueryStandardInformation(FileObject, &SystemBuffer, SystemBufferEnd);
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break;
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case FileStreamInformation:
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Result = STATUS_INVALID_PARAMETER; /* !!!: no stream support yet! */
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break;
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default:
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Result = STATUS_INVALID_PARAMETER;
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break;
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}
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if (FSP_STATUS_IOQ_POST != Result)
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{
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Irp->IoStatus.Information = (UINT_PTR)((PUINT8)SystemBufferEnd - (PUINT8)SystemBuffer);
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return Result;
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}
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FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension = FspFsvolDeviceExtension(FsvolDeviceObject);
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BOOLEAN FileNameRequired = 0 != FsvolDeviceExtension->VolumeParams.FileNameRequired;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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FSP_FILE_DESC *FileDesc = FileObject->FsContext2;
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FSP_FSCTL_TRANSACT_REQ *Request;
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ASSERT(FileNode == FileDesc->FileNode);
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Result = FspIopCreateRequest(Irp, FileNameRequired ? &FileNode->FileName : 0, 0, &Request);
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if (!NT_SUCCESS(Result))
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return Result;
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Request->Kind = FspFsctlTransactQueryInformationKind;
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Request->Req.QueryInformation.UserContext = FileNode->UserContext;
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Request->Req.QueryInformation.UserContext2 = FileDesc->UserContext2;
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return FSP_STATUS_IOQ_POST;
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}
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VOID FspFsvolQueryInformationComplete(
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@ -37,13 +368,55 @@ VOID FspFsvolQueryInformationComplete(
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{
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FSP_ENTER_IOC(PAGED_CODE());
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if (!NT_SUCCESS(Response->IoStatus.Status))
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{
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Irp->IoStatus.Information = Response->IoStatus.Information;
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Result = Response->IoStatus.Status;
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FSP_RETURN();
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}
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PFILE_OBJECT FileObject = IrpSp->FileObject;
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FSP_FILE_NODE *FileNode = FileObject->FsContext;
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PUINT8 SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
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PUINT8 SystemBufferEnd = (PUINT8)SystemBuffer + IrpSp->Parameters.QueryFile.Length;
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FspFileNodeSetFileInfo(FileNode, &Response->Rsp.QueryInformation.FileInfo);
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switch (IrpSp->Parameters.QueryFile.FileInformationClass)
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{
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case FileAllInformation:
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Result = FspFsvolQueryAllInformation(FileObject, &SystemBuffer, SystemBufferEnd,
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&Response->Rsp.QueryInformation.FileInfo);
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break;
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case FileAttributeTagInformation:
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Result = FspFsvolQueryAttributeTagInformation(FileObject, &SystemBuffer, SystemBufferEnd,
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&Response->Rsp.QueryInformation.FileInfo);
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break;
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case FileBasicInformation:
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Result = FspFsvolQueryBasicInformation(FileObject, &SystemBuffer, SystemBufferEnd,
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&Response->Rsp.QueryInformation.FileInfo);
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break;
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case FileNetworkOpenInformation:
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Result = FspFsvolQueryNetworkOpenInformation(FileObject, &SystemBuffer, SystemBufferEnd,
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&Response->Rsp.QueryInformation.FileInfo);
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break;
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default:
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ASSERT(0);
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Result = STATUS_INVALID_PARAMETER;
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break;
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}
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ASSERT(FSP_STATUS_IOQ_POST != Result);
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Irp->IoStatus.Information = (UINT_PTR)((PUINT8)SystemBufferEnd - (PUINT8)SystemBuffer);
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FSP_LEAVE_IOC("%s, FileObject=%p",
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FileInformationClassSym(IrpSp->Parameters.QueryFile.FileInformationClass),
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IrpSp->FileObject);
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}
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static NTSTATUS FspFsvolSetInformation(
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PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
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PDEVICE_OBJECT FsvolDeviceObject, PIRP Irp, PIO_STACK_LOCATION IrpSp)
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{
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PAGED_CODE();
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@ -225,7 +225,7 @@ VOID FspIopCompleteIrpEx(PIRP Irp, NTSTATUS Result, BOOLEAN DeviceDereference)
|
||||
/* get the device object out of the IRP before completion */
|
||||
PDEVICE_OBJECT DeviceObject = IoGetCurrentIrpStackLocation(Irp)->DeviceObject;
|
||||
|
||||
if (!NT_SUCCESS(Result))
|
||||
if (STATUS_SUCCESS != Result && STATUS_BUFFER_OVERFLOW != Result)
|
||||
Irp->IoStatus.Information = 0;
|
||||
Irp->IoStatus.Status = Result;
|
||||
IoCompleteRequest(Irp, FSP_IO_INCREMENT);
|
||||
|
||||
Reference in New Issue
Block a user