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sys: IRP_MJ_CREATE: FILE_DELETE_ON_CLOSE

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This commit is contained in:
Bill Zissimopoulos 2015-12-07 22:54:02 -08:00
parent 6c29a98e90
commit 6ea86a5e8a
3 changed files with 26 additions and 2 deletions
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1
inc/winfsp/fsctl.h
View File

@ -112,6 +112,7 @@ typedef struct
{ {
UINT64 UserContext; UINT64 UserContext;
UINT64 UserContext2; UINT64 UserContext2;
UINT32 Delete:1; /* if set, the file or directory must be deleted */
} Cleanup; } Cleanup;
struct struct
{ {

24
src/sys/create.c
View File

@ -195,6 +195,15 @@ static NTSTATUS FspFsvolCreate(
goto exit; goto exit;
} }
/* cannot FILE_DELETE_ON_CLOSE on the root directory */
if (sizeof(WCHAR) == RelatedFsContext->FileName.Length &&
0 == FileName.Length &&
FlagOn(CreateOptions, FILE_DELETE_ON_CLOSE))
{
Result = STATUS_CANNOT_DELETE;
goto exit;
}
FSP_FILE_CONTEXT *RelatedFsContext = RelatedFileObject->FsContext; FSP_FILE_CONTEXT *RelatedFsContext = RelatedFileObject->FsContext;
ASSERT(0 != RelatedFsContext); ASSERT(0 != RelatedFsContext);
@ -230,6 +239,14 @@ static NTSTATUS FspFsvolCreate(
goto exit; goto exit;
} }
/* cannot FILE_DELETE_ON_CLOSE on the root directory */
if (sizeof(WCHAR) == FileName.Length) &&
FlagOn(CreateOptions, FILE_DELETE_ON_CLOSE))
{
Result = STATUS_CANNOT_DELETE;
goto exit;
}
Result = FspFileContextCreate( Result = FspFileContextCreate(
FileName.Length, FileName.Length,
&FsContext); &FsContext);
@ -483,7 +500,8 @@ VOID FspFsvolCreateComplete(
FSP_RETURN(Result = STATUS_ACCESS_DENIED); FSP_RETURN(Result = STATUS_ACCESS_DENIED);
} }
else else
if (FlagOn(CreateOptions, FILE_DELETE_ON_CLOSE)) if (!FlagOn(ResponseFileAttributes, FILE_ATTRIBUTE_DIRECTORY) &&
FlagOn(CreateOptions, FILE_DELETE_ON_CLOSE))
{ {
FspFsvolCreateClose(Irp, Response); FspFsvolCreateClose(Irp, Response);
FSP_RETURN(Result = STATUS_CANNOT_DELETE); FSP_RETURN(Result = STATUS_CANNOT_DELETE);
@ -573,6 +591,8 @@ VOID FspFsvolCreateComplete(
IoSetShareAccess(AccessState->PreviouslyGrantedAccess, IoSetShareAccess(AccessState->PreviouslyGrantedAccess,
ShareAccess, FileObject, &FsContext->ShareAccess); ShareAccess, FileObject, &FsContext->ShareAccess);
FspFileContextOpen(FsContext); FspFileContextOpen(FsContext);
if (FlagOn(CreateOptions, FILE_DELETE_ON_CLOSE))
FsContext->DeleteOnClose = TRUE;
Result = STATUS_SUCCESS; Result = STATUS_SUCCESS;
} }
else else
@ -592,6 +612,8 @@ VOID FspFsvolCreateComplete(
{ {
FspFileContextRetain(FsContext); FspFileContextRetain(FsContext);
FspFileContextOpen(FsContext); FspFileContextOpen(FsContext);
if (FlagOn(CreateOptions, FILE_DELETE_ON_CLOSE))
FsContext->DeleteOnClose = TRUE;
} }
ExReleaseResourceLite(FsContext->Header.Resource); ExReleaseResourceLite(FsContext->Header.Resource);
} }

3
src/sys/driver.h
View File

@ -388,7 +388,8 @@ typedef struct
/* protected by Header.Resource */ /* protected by Header.Resource */
LONG OpenCount; LONG OpenCount;
SHARE_ACCESS ShareAccess; SHARE_ACCESS ShareAccess;
BOOLEAN DeletePending; BOOLEAN DeletePending; /* FileDispositionInformation */
BOOLEAN DeleteOnClose; /* FILE_DELETE_ON_CLOSE */
/* read-only after creation */ /* read-only after creation */
FSP_DEVICE_GENERIC_TABLE_ELEMENT ElementStorage; FSP_DEVICE_GENERIC_TABLE_ELEMENT ElementStorage;
UINT64 UserContext; UINT64 UserContext;