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sys: IRP_MJ_SET_INFORMATION

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This commit is contained in:
Bill Zissimopoulos
2016-02-05 18:30:34 -08:00
parent dc77a1109f
commit 66f54294a2
6 changed files with 253 additions and 16 deletions
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10
src/sys/create.c
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@@ -116,7 +116,8 @@ static NTSTATUS FspFsvolCreate(
USHORT FileAttributes = IrpSp->Parameters.Create.FileAttributes;
PSECURITY_DESCRIPTOR SecurityDescriptor = AccessState->SecurityDescriptor;
ULONG SecurityDescriptorSize = 0;
LARGE_INTEGER AllocationSize = Irp->Overlay.AllocationSize;
UINT64 AllocationSize = Irp->Overlay.AllocationSize.QuadPart;
UINT64 AllocationUnit;
ACCESS_MASK DesiredAccess = IrpSp->Parameters.Create.SecurityContext->DesiredAccess;
USHORT ShareAccess = IrpSp->Parameters.Create.ShareAccess;
PFILE_FULL_EA_INFORMATION EaBuffer = Irp->AssociatedIrp.SystemBuffer;
@@ -156,6 +157,11 @@ static NTSTATUS FspFsvolCreate(
SecurityDescriptorSize = RtlLengthSecurityDescriptor(SecurityDescriptor);
}
/* align allocation size */
AllocationUnit = FsvolDeviceExtension->VolumeParams.SectorSize *
FsvolDeviceExtension->VolumeParams.SectorsPerAllocationUnit;
AllocationSize = (AllocationSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
/* according to fastfat, filenames that begin with two backslashes are ok */
if (sizeof(WCHAR) * 2 <= FileName.Length &&
L'\\' == FileName.Buffer[1] && L'\\' == FileName.Buffer[0])
@@ -323,7 +329,7 @@ static NTSTATUS FspFsvolCreate(
Request->Req.Create.SecurityDescriptor.Offset = 0 == SecurityDescriptorSize ? 0 :
FSP_FSCTL_DEFAULT_ALIGN_UP(Request->FileName.Size);
Request->Req.Create.SecurityDescriptor.Size = (UINT16)SecurityDescriptorSize;
Request->Req.Create.AllocationSize = AllocationSize.QuadPart;
Request->Req.Create.AllocationSize = AllocationSize;
Request->Req.Create.AccessToken = 0;
Request->Req.Create.DesiredAccess = DesiredAccess;
Request->Req.Create.ShareAccess = ShareAccess;

14
src/sys/file.c
View File

@@ -401,10 +401,18 @@ VOID FspFileNodeSetFileInfo(FSP_FILE_NODE *FileNode, PFILE_OBJECT CcFileObject,
{
PAGED_CODE();
UINT64 FileInfoTimeout = FspFsvolDeviceExtension(FileNode->FsvolDeviceObject)->
VolumeParams.FileInfoTimeout * 10000ULL;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension =
FspFsvolDeviceExtension(FileNode->FsvolDeviceObject);
UINT64 FileInfoTimeout = FsvolDeviceExtension->VolumeParams.FileInfoTimeout * 10000ULL;
UINT64 AllocationSize = FileInfo->AllocationSize > FileInfo->FileSize ?
FileInfo->AllocationSize : FileInfo->FileSize;
UINT64 AllocationUnit;
FileNode->Header.AllocationSize.QuadPart = FileInfo->AllocationSize;
AllocationUnit = FsvolDeviceExtension->VolumeParams.SectorSize *
FsvolDeviceExtension->VolumeParams.SectorsPerAllocationUnit;
AllocationSize = (AllocationSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
FileNode->Header.AllocationSize.QuadPart = AllocationSize;
FileNode->Header.FileSize.QuadPart = FileInfo->FileSize;
FileNode->FileAttributes = FileInfo->FileAttributes;

28
src/sys/fileinfo.c
View File

@@ -531,9 +531,17 @@ static NTSTATUS FspFsvolSetAllocationInformation(PFILE_OBJECT FileObject,
return STATUS_SUCCESS;
PFILE_ALLOCATION_INFORMATION Info = (PFILE_ALLOCATION_INFORMATION)Buffer;
FSP_FSVOL_DEVICE_EXTENSION *FsvolDeviceExtension =
FspFsvolDeviceExtension(FileObject->DeviceObject);
UINT64 AllocationSize = Info->AllocationSize.QuadPart;
UINT64 AllocationUnit;
BOOLEAN Success;
Request->Req.SetInformation.Info.Allocation.AllocationSize = Info->AllocationSize.QuadPart;
AllocationUnit = FsvolDeviceExtension->VolumeParams.SectorSize *
FsvolDeviceExtension->VolumeParams.SectorsPerAllocationUnit;
AllocationSize = (AllocationSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit;
Request->Req.SetInformation.Info.Allocation.AllocationSize = AllocationSize;
Success = MmCanFileBeTruncated(FileObject->SectionObjectPointer, &Info->AllocationSize);
if (!Success)
@@ -599,11 +607,14 @@ static NTSTATUS FspFsvolSetDispositionInformation(PFILE_OBJECT FileObject,
PFILE_DISPOSITION_INFORMATION Info = (PFILE_DISPOSITION_INFORMATION)Buffer;
BOOLEAN Success;
/* make sure no process is mapping the file as an image */
Success = MmFlushImageSection(FileObject->SectionObjectPointer,
MmFlushForDelete);
if (!Success)
return STATUS_CANNOT_DELETE;
if (Info->DeleteFile)
{
/* make sure no process is mapping the file as an image */
Success = MmFlushImageSection(FileObject->SectionObjectPointer,
MmFlushForDelete);
if (!Success)
return STATUS_CANNOT_DELETE;
}
Request->Req.SetInformation.Info.Disposition.Delete = Info->DeleteFile;
@@ -802,20 +813,21 @@ NTSTATUS FspFsvolSetInformationComplete(
ULONG Length = IrpSp->Parameters.SetFile.Length;
FSP_FSCTL_TRANSACT_REQ *Request = FspIrpRequest(Irp);
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
switch (FileInformationClass)
{
case FileAllocationInformation:
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
Result = FspFsvolSetAllocationInformation(FileObject, Buffer, Length, Request, Response);
break;
case FileBasicInformation:
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
Result = FspFsvolSetBasicInformation(FileObject, Buffer, Length, Request, Response);
break;
case FileDispositionInformation:
Result = FspFsvolSetDispositionInformation(FileObject, Buffer, Length, Request, Response);
break;
case FileEndOfFileInformation:
FspFileNodeSetFileInfo(FileNode, FileObject, &Response->Rsp.SetInformation.FileInfo);
Result = FspFsvolSetEndOfFileInformation(FileObject, Buffer, Length,
IrpSp->Parameters.SetFile.AdvanceOnly, Request, Response);
break;