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The FltPropagateIrpExtension routine copies the IRP extension from one minifilter's callback data to another's callback data.
Syntax
NTSTATUS FLTAPI FltPropagateIrpExtension(
[in] PFLT_CALLBACK_DATA SourceData,
[in/out] PFLT_CALLBACK_DATA TargetData,
[in] ULONG Flags
);
Parameters
[in] SourceData
Pointer to the callback data context from which to copy the extension data.
[in/out] TargetData
Pointer to the callback data context in which to copy the extension data.
[in] Flags
Reserved; must be set to 0.
Return value
FltPropagateIrpExtension returns STATUS_SUCCESS upon successful completion; otherwise, it returns one of the following NTSTATUS error values.
| Return code | Description |
|---|---|
| STATUS_INVALID_PARAMETER | SourceData or TargetData are not an IRP operation. |
| STATUS_INSUFFICIENT_RESOURCES | Could not allocate an extension in the target callback data. |
Remarks
FltPropagateIrpExtension copies only those portions of the IRP extension data that are present.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 10 version 1607. |
| Target Platform | Universal |
| Header | fltkernel.h (include Fltkernel.h) |
| Library | FltMgr.lib |
| DLL | Fltmgr.sys |
| IRQL | <= DISPATCH_LEVEL |