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sys: FspFileNodeSetOwner(), FspFileNodeReleaseOwner()

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This commit is contained in:
Bill Zissimopoulos
2016-01-30 22:02:30 -08:00
parent b2e6ec0f44
commit 7b5a7cd2f0
4 changed files with 66 additions and 22 deletions
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14
src/sys/create.c
View File

@@ -405,7 +405,7 @@ NTSTATUS FspFsvolCreatePrepare(
FileObject = FspIopRequestContext(Request, RequestFileObject);
/* lock the FileNode for overwriting */
Success = DEBUGRANDTEST(90, TRUE) && FspFileNodeTryAcquireExclusive(FileNode, Both);
Success = DEBUGRANDTEST(90, TRUE) && FspFileNodeTryAcquireExclusive(FileNode, Full);
if (!Success)
{
FspIopRetryPrepareIrp(Irp, &Result);
@@ -417,7 +417,7 @@ NTSTATUS FspFsvolCreatePrepare(
Success = MmCanFileBeTruncated(&FileNode->NonPaged->SectionObjectPointers, &Zero);
if (!Success)
{
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
return STATUS_USER_MAPPED_FILE;
}
@@ -652,7 +652,7 @@ NTSTATUS FspFsvolCreateComplete(
Response->Rsp.Overwrite.FileInfo.AllocationSize,
Response->Rsp.Overwrite.FileInfo.FileSize);
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
/* SUCCESS! */
FspFileNodeSetFileInfo(FileNode, &Response->Rsp.Overwrite.FileInfo);
@@ -687,7 +687,7 @@ static NTSTATUS FspFsvolCreateTryOpen(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Re
FSP_FSCTL_TRANSACT_REQ *Request = FspIrpRequest(Irp);
BOOLEAN Success;
Success = DEBUGRANDTEST(90, TRUE) && FspFileNodeTryAcquireExclusive(FileNode, Both);
Success = DEBUGRANDTEST(90, TRUE) && FspFileNodeTryAcquireExclusive(FileNode, Full);
if (!Success)
{
/* repost the IRP to retry later */
@@ -720,7 +720,7 @@ static NTSTATUS FspFsvolCreateTryOpen(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Re
{
Success = MmFlushImageSection(&FileNode->NonPaged->SectionObjectPointers,
MmFlushForWrite);
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
if (!Success)
{
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
@@ -736,7 +736,7 @@ static NTSTATUS FspFsvolCreateTryOpen(PIRP Irp, const FSP_FSCTL_TRANSACT_RSP *Re
}
}
else
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
/* SUCCESS! */
FspFileNodeSetFileInfo(FileNode, &Response->Rsp.Create.Opened.FileInfo);
@@ -854,7 +854,7 @@ static VOID FspFsvolCreateOverwriteRequestFini(PVOID Context[3])
if (RequestPending == State)
FspFsvolCreatePostClose(FileDesc);
else if (RequestProcessing == State)
FspFileNodeRelease(FileDesc->FileNode, Both);
FspFileNodeRelease(FileDesc->FileNode, Full);
FspFileNodeClose(FileDesc->FileNode, FileObject, 0);
FspFileNodeDereference(FileDesc->FileNode);

6
src/sys/driver.h
View File

@@ -547,7 +547,7 @@ enum
{
FspFileNodeAcquireMain = 1,
FspFileNodeAcquirePgio = 2,
FspFileNodeAcquireBoth = 3,
FspFileNodeAcquireFull = 3,
};
typedef struct
{
@@ -614,7 +614,9 @@ VOID FspFileNodeAcquireSharedF(FSP_FILE_NODE *FileNode, ULONG Flags);
BOOLEAN FspFileNodeTryAcquireSharedF(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeAcquireExclusiveF(FSP_FILE_NODE *FileNode, ULONG Flags);
BOOLEAN FspFileNodeTryAcquireExclusiveF(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeSetOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner);
VOID FspFileNodeReleaseF(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeReleaseOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner);
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
UINT32 GrantedAccess, UINT32 ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult);
VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
@@ -630,7 +632,9 @@ VOID FspFileObjectSetSizes(PFILE_OBJECT FileObject,
#define FspFileNodeTryAcquireShared(N,F) FspFileNodeTryAcquireSharedF(N, FspFileNodeAcquire ## F)
#define FspFileNodeAcquireExclusive(N,F) FspFileNodeAcquireExclusiveF(N, FspFileNodeAcquire ## F)
#define FspFileNodeTryAcquireExclusive(N,F) FspFileNodeTryAcquireExclusiveF(N, FspFileNodeAcquire ## F)
#define FspFileNodeSetOwner(N,F,P) FspFileNodeSetOwnerF(N, FspFileNodeAcquire ## F, P)
#define FspFileNodeRelease(N,F) FspFileNodeReleaseF(N, FspFileNodeAcquire ## F)
#define FspFileNodeReleaseOwner(N,F,P) FspFileNodeReleaseOwnerF(N, FspFileNodeAcquire ## F, P)
/* debug */
#if DBG

40
src/sys/file.c
View File

@@ -13,7 +13,9 @@ VOID FspFileNodeAcquireSharedF(FSP_FILE_NODE *FileNode, ULONG Flags);
BOOLEAN FspFileNodeTryAcquireSharedF(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeAcquireExclusiveF(FSP_FILE_NODE *FileNode, ULONG Flags);
BOOLEAN FspFileNodeTryAcquireExclusiveF(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeSetOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner);
VOID FspFileNodeReleaseF(FSP_FILE_NODE *FileNode, ULONG Flags);
VOID FspFileNodeReleaseOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner);
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
UINT32 GrantedAccess, UINT32 ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult);
VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
@@ -33,7 +35,9 @@ VOID FspFileObjectSetSizes(PFILE_OBJECT FileObject,
#pragma alloc_text(PAGE, FspFileNodeTryAcquireSharedF)
#pragma alloc_text(PAGE, FspFileNodeAcquireExclusiveF)
#pragma alloc_text(PAGE, FspFileNodeTryAcquireExclusiveF)
#pragma alloc_text(PAGE, FspFileNodeSetOwnerF)
#pragma alloc_text(PAGE, FspFileNodeReleaseF)
#pragma alloc_text(PAGE, FspFileNodeReleaseOwnerF)
#pragma alloc_text(PAGE, FspFileNodeOpen)
#pragma alloc_text(PAGE, FspFileNodeClose)
#pragma alloc_text(PAGE, FspFileNodeGetFileInfo)
@@ -179,6 +183,19 @@ BOOLEAN FspFileNodeTryAcquireExclusiveF(FSP_FILE_NODE *FileNode, ULONG Flags)
return Result;
}
VOID FspFileNodeSetOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner)
{
PAGED_CODE();
Owner = (PVOID)((UINT_PTR)Owner | 3);
if (Flags & FspFileNodeAcquireMain)
ExSetResourceOwnerPointer(FileNode->Header.Resource, Owner);
if (Flags & FspFileNodeAcquirePgio)
ExSetResourceOwnerPointer(FileNode->Header.PagingIoResource, Owner);
}
VOID FspFileNodeReleaseF(FSP_FILE_NODE *FileNode, ULONG Flags)
{
PAGED_CODE();
@@ -190,6 +207,29 @@ VOID FspFileNodeReleaseF(FSP_FILE_NODE *FileNode, ULONG Flags)
ExReleaseResourceLite(FileNode->Header.Resource);
}
VOID FspFileNodeReleaseOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner)
{
PAGED_CODE();
Owner = (PVOID)((UINT_PTR)Owner | 3);
if (Flags & FspFileNodeAcquirePgio)
{
if (ExIsResourceAcquiredLite(FileNode->Header.PagingIoResource))
ExReleaseResourceLite(FileNode->Header.PagingIoResource);
else
ExReleaseResourceForThreadLite(FileNode->Header.PagingIoResource, (ERESOURCE_THREAD)Owner);
}
if (Flags & FspFileNodeAcquireMain)
{
if (ExIsResourceAcquiredLite(FileNode->Header.Resource))
ExReleaseResourceLite(FileNode->Header.Resource);
else
ExReleaseResourceForThreadLite(FileNode->Header.Resource, (ERESOURCE_THREAD)Owner);
}
}
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
UINT32 GrantedAccess, UINT32 ShareAccess, BOOLEAN DeleteOnClose, NTSTATUS *PResult)
{

28
src/sys/fileinfo.c
View File

@@ -105,13 +105,13 @@ static NTSTATUS FspFsvolQueryAllInformation(PFILE_OBJECT FileObject,
return FSP_STATUS_IOQ_POST;
FileInfo = &FileInfoBuf;
FspFileNodeAcquireShared(FileNode, Both);
FspFileNodeAcquireShared(FileNode, Full);
}
else if (0 == Response)
{
FspFileNodeAcquireShared(FileNode, Both);
FspFileNodeAcquireShared(FileNode, Full);
FspIopRequestContext(Request, RequestFileNode) = FileNode;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireBoth;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireFull;
return FSP_STATUS_IOQ_POST;
}
@@ -300,13 +300,13 @@ static NTSTATUS FspFsvolQueryNetworkOpenInformation(PFILE_OBJECT FileObject,
return FSP_STATUS_IOQ_POST;
FileInfo = &FileInfoBuf;
FspFileNodeAcquireShared(FileNode, Both);
FspFileNodeAcquireShared(FileNode, Full);
}
else if (0 == Response)
{
FspFileNodeAcquireShared(FileNode, Both);
FspFileNodeAcquireShared(FileNode, Full);
FspIopRequestContext(Request, RequestFileNode) = FileNode;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireBoth;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireFull;
return FSP_STATUS_IOQ_POST;
}
@@ -320,7 +320,7 @@ static NTSTATUS FspFsvolQueryNetworkOpenInformation(PFILE_OBJECT FileObject,
Info->AllocationSize = FileNode->Header.AllocationSize;
Info->EndOfFile = FileNode->Header.FileSize;
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
Info->CreationTime.QuadPart = FileInfo->CreationTime;
Info->LastAccessTime.QuadPart = FileInfo->LastAccessTime;
@@ -376,13 +376,13 @@ static NTSTATUS FspFsvolQueryStandardInformation(PFILE_OBJECT FileObject,
return FSP_STATUS_IOQ_POST;
FileInfo = &FileInfoBuf;
FspFileNodeAcquireShared(FileNode, Both);
FspFileNodeAcquireShared(FileNode, Full);
}
else if (0 == Response)
{
FspFileNodeAcquireShared(FileNode, Both);
FspFileNodeAcquireShared(FileNode, Full);
FspIopRequestContext(Request, RequestFileNode) = FileNode;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireBoth;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireFull;
return FSP_STATUS_IOQ_POST;
}
@@ -587,18 +587,18 @@ static NTSTATUS FspFsvolSetAllocationInformation(PFILE_OBJECT FileObject,
Request->Req.SetInformation.Info.Allocation.AllocationSize = Info->AllocationSize.QuadPart;
FspFileNodeAcquireExclusive(FileNode, Both);
FspFileNodeAcquireExclusive(FileNode, Full);
Success = MmCanFileBeTruncated(FileObject->SectionObjectPointer, &Info->AllocationSize);
if (!Success)
{
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
return STATUS_USER_MAPPED_FILE;
}
FspIopRequestContext(Request, RequestFileNode) = FileNode;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireBoth;
FspIopRequestContext(Request, RequestAcquireFlags) = (PVOID)FspFileNodeAcquireFull;
return FSP_STATUS_IOQ_POST;
}
@@ -614,7 +614,7 @@ static NTSTATUS FspFsvolSetAllocationInformation(PFILE_OBJECT FileObject,
FileNode->CcStatus = FspCcSetFileSizes(
FileObject, (PCC_FILE_SIZES)&FileNode->Header.AllocationSize);
FspFileNodeRelease(FileNode, Both);
FspFileNodeRelease(FileNode, Full);
return STATUS_SUCCESS;
}