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sys: FspFileNodeSetFileInfo: TruncateOnClose

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This commit is contained in:
Bill Zissimopoulos 2016-12-21 16:45:01 -08:00
parent c897ddd864
commit 7b94f2bebf
5 changed files with 27 additions and 28 deletions
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14
src/sys/create.c
View File

@ -1024,11 +1024,7 @@ NTSTATUS FspFsvolCreateComplete(
/* file was successfully overwritten/superseded */
if (0 == FileNode->MainFileNode)
FspFileNodeOverwriteStreams(FileNode);
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.Overwrite.FileInfo);
if (0 != Response->Rsp.Overwrite.FileInfo.AllocationSize)
FileNode->TruncateOnClose = TRUE;
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.Overwrite.FileInfo, TRUE);
FspFileNodeNotifyChange(FileNode,
FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_ATTRIBUTES | FILE_NOTIFY_CHANGE_SIZE,
FILE_ACTION_MODIFIED);
@ -1094,7 +1090,8 @@ static NTSTATUS FspFsvolCreateTryOpen(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Re
return Result;
}
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.Create.Opened.FileInfo);
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.Create.Opened.FileInfo,
FILE_CREATED == Response->IoStatus.Information);
if (FlushImage)
{
@ -1119,14 +1116,9 @@ static NTSTATUS FspFsvolCreateTryOpen(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Re
}
if (FILE_CREATED == Response->IoStatus.Information)
{
if (0 != Response->Rsp.Create.Opened.FileInfo.AllocationSize)
FileNode->TruncateOnClose = TRUE;
FspFileNodeNotifyChange(FileNode,
FileNode->IsDirectory ? FILE_NOTIFY_CHANGE_DIR_NAME : FILE_NOTIFY_CHANGE_FILE_NAME,
FILE_ACTION_ADDED);
}
FspFileNodeRelease(FileNode, Main);

2
src/sys/driver.h
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@ -1281,7 +1281,7 @@ VOID FspFileNodeRename(FSP_FILE_NODE *FileNode, PUNICODE_STRING NewFileName);
VOID FspFileNodeGetFileInfo(FSP_FILE_NODE *FileNode, FSP_FSCTL_FILE_INFO *FileInfo);
BOOLEAN FspFileNodeTryGetFileInfo(FSP_FILE_NODE *FileNode, FSP_FSCTL_FILE_INFO *FileInfo);
VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo);
const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose);
BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo, ULONG InfoChangeNumber);
static inline

18
src/sys/file.c
View File

@ -55,7 +55,7 @@ VOID FspFileNodeRename(FSP_FILE_NODE *FileNode, PUNICODE_STRING NewFileName);
VOID FspFileNodeGetFileInfo(FSP_FILE_NODE *FileNode, FSP_FSCTL_FILE_INFO *FileInfo);
BOOLEAN FspFileNodeTryGetFileInfo(FSP_FILE_NODE *FileNode, FSP_FSCTL_FILE_INFO *FileInfo);
VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo);
const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose);
BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo, ULONG InfoChangeNumber);
BOOLEAN FspFileNodeReferenceSecurity(FSP_FILE_NODE *FileNode, PCVOID *PBuffer, PULONG PSize);
@ -1416,7 +1416,7 @@ BOOLEAN FspFileNodeTryGetFileInfo(FSP_FILE_NODE *FileNode, FSP_FSCTL_FILE_INFO *
}
VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
const FSP_FSCTL_FILE_INFO *FileInfo)
const FSP_FSCTL_FILE_INFO *FileInfo, BOOLEAN TruncateOnClose)
{
PAGED_CODE();
@ -1430,8 +1430,20 @@ VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
FsvolDeviceExtension->VolumeParams.SectorsPerAllocationUnit;
AllocationSize = (AllocationSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
if (TruncateOnClose)
{
if ((UINT64)FileNode->Header.AllocationSize.QuadPart != AllocationSize ||
(UINT64)FileNode->Header.FileSize.QuadPart != FileInfo->FileSize)
FileNode->TruncateOnClose = TRUE;
FileNode->Header.AllocationSize.QuadPart = AllocationSize;
FileNode->Header.FileSize.QuadPart = FileInfo->FileSize;
}
else
{
FileNode->Header.AllocationSize.QuadPart = AllocationSize;
FileNode->Header.FileSize.QuadPart = FileInfo->FileSize;
}
FileNode->FileInfoExpirationTime = FileNode->BasicInfoExpirationTime =
FspExpirationTimeFromMillis(FsvolDeviceExtension->VolumeParams.FileInfoTimeout);
@ -1521,7 +1533,7 @@ BOOLEAN FspFileNodeTrySetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileOb
if (FspFileNodeFileInfoChangeNumber(FileNode) != InfoChangeNumber)
return FALSE;
FspFileNodeSetFileInfo(FileNode, CcFileObject, FileInfo);
FspFileNodeSetFileInfo(FileNode, CcFileObject, FileInfo, FALSE);
return TRUE;
}

8
src/sys/fileinfo.c
View File

@ -901,8 +901,7 @@ static NTSTATUS FspFsvolSetAllocationInformation(PFILE_OBJECT FileObject,
{
FSP_FILE_NODE *FileNode = FileObject->FsContext;
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
FileNode->TruncateOnClose = TRUE;
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo, TRUE);
/* mark the file object as modified */
SetFlag(FileObject->Flags, FO_FILE_MODIFIED);
@ -971,7 +970,7 @@ static NTSTATUS FspFsvolSetBasicInformation(PFILE_OBJECT FileObject,
ClearFlag(FileObject->Flags, FO_TEMPORARY_FILE);
}
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo, FALSE);
if ((UINT32)-1 != Request->Req.SetInformation.Info.Basic.FileAttributes)
NotifyFilter |= FILE_NOTIFY_CHANGE_ATTRIBUTES;
@ -1032,8 +1031,7 @@ static NTSTATUS FspFsvolSetEndOfFileInformation(PFILE_OBJECT FileObject,
{
FSP_FILE_NODE *FileNode = FileObject->FsContext;
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
FileNode->TruncateOnClose = TRUE;
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo, TRUE);
/* mark the file object as modified -- FastFat does this only for Allocation though! */
SetFlag(FileObject->Flags, FO_FILE_MODIFIED);

9
src/sys/write.c
View File

@ -470,16 +470,13 @@ NTSTATUS FspFsvolWriteComplete(
UINT64 OriginalFileSize = FileNode->Header.FileSize.QuadPart;
/* update file info */
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.Write.FileInfo);
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.Write.FileInfo, TRUE);
if (!PagingIo && OriginalFileSize != Response->Rsp.Write.FileInfo.FileSize)
{
FileNode->TruncateOnClose = TRUE;
if (OriginalFileSize != Response->Rsp.Write.FileInfo.FileSize)
FspFileNodeNotifyChange(FileNode, FILE_NOTIFY_CHANGE_SIZE, FILE_ACTION_MODIFIED);
}
/* update the current file offset if synchronous I/O (and not paging I/O) */
if (!PagingIo && SynchronousIo)
if (SynchronousIo && !PagingIo)
FileObject->CurrentByteOffset.QuadPart = WriteToEndOfFile ?
Response->Rsp.Write.FileInfo.FileSize :
WriteOffset.QuadPart + Response->IoStatus.Information;