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sys: IRP_MJ_CREATE: oplock support

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This commit is contained in:
Bill Zissimopoulos
2016-11-10 14:54:41 -08:00
parent 7adbd7a56c
commit fb70eccc9c
5 changed files with 169 additions and 28 deletions
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30
src/sys/file.c
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@ -31,13 +31,13 @@ VOID FspFileNodeConvertExclusiveToSharedF(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, NTSTATUS *PResult);
NTSTATUS FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
UINT32 GrantedAccess, UINT32 ShareAccess, FSP_FILE_NODE **POpenedFileNode);
VOID FspFileNodeCleanup(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
PBOOLEAN PDeletePending);
VOID FspFileNodeCleanupComplete(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject);
VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
BOOLEAN AlsoCleanup);
BOOLEAN RemoveShareAccess, BOOLEAN HandleCleanup);
NTSTATUS FspFileNodeFlushAndPurgeCache(FSP_FILE_NODE *FileNode,
UINT64 FlushOffset64, ULONG FlushLength, BOOLEAN FlushAndPurge);
VOID FspFileNodeRename(FSP_FILE_NODE *FileNode, PUNICODE_STRING NewFileName);
@ -447,8 +447,8 @@ VOID FspFileNodeReleaseOwnerF(FSP_FILE_NODE *FileNode, ULONG Flags, PVOID Owner)
FSP_FILE_NODE_CLR_FLAGS();
}
FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
UINT32 GrantedAccess, UINT32 ShareAccess, NTSTATUS *PResult)
NTSTATUS FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
UINT32 GrantedAccess, UINT32 ShareAccess, FSP_FILE_NODE **POpenedFileNode)
{
/*
* Attempt to insert our FileNode into the volume device's generic table.
@ -596,13 +596,8 @@ FSP_FILE_NODE *FspFileNodeOpen(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
Result = STATUS_SUCCESS;
exit:
if (!NT_SUCCESS(Result))
{
if (0 != PResult)
*PResult = Result;
if (!NT_SUCCESS(Result) && STATUS_SHARING_VIOLATION != Result)
OpenedFileNode = 0;
}
if (0 != OpenedFileNode)
{
@ -613,7 +608,9 @@ exit:
FspFsvolDeviceUnlockContextTable(FsvolDeviceObject);
return OpenedFileNode;
*POpenedFileNode = OpenedFileNode;
return Result;
}
VOID FspFileNodeCleanup(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
@ -724,7 +721,7 @@ VOID FspFileNodeCleanupComplete(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject
}
VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
BOOLEAN AlsoCleanup)
BOOLEAN RemoveShareAccess, BOOLEAN HandleCleanup)
{
/*
* Close the FileNode. If the OpenCount becomes zero remove it
@ -740,7 +737,7 @@ VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
FspFsvolDeviceLockContextTable(FsvolDeviceObject);
if (AlsoCleanup)
if (RemoveShareAccess)
{
/*
* Sharing violations between main file and streams were determined
@ -759,10 +756,11 @@ VOID FspFileNodeClose(FSP_FILE_NODE *FileNode, PFILE_OBJECT FileObject,
}
IoRemoveShareAccess(FileObject, &FileNode->ShareAccess);
FileNode->HandleCount--;
}
if (HandleCleanup)
FileNode->HandleCount--;
if (0 < FileNode->OpenCount && 0 == --FileNode->OpenCount)
{
FspFsvolDeviceDeleteContextByName(FsvolDeviceObject, &FileNode->FileName,