FwpsAcquireClassifyHandle0 - NtDoc
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headers
// fwpsk.h
NTSTATUS FwpsAcquireClassifyHandle0(
[in] void *classifyContext,
[in] UINT32 flags,
[out] UINT64 *classifyHandle
);
View the official Windows Driver Kit DDI referenceNo description available.
The FwpsAcquireClassifyHandle0 function generates a classification handle that is used to identify asynchronous classification operations and requests for writable layer data.
Note FwpsAcquireClassifyHandle0 is a specific version of FwpsAcquireClassifyHandle. See WFP Version-Independent Names and Targeting Specific Versions of Windows for more information.
classifyContext [in]The classifyContext parameter from classifyFn1. The WFP engine passes this value to the callout driver's classifyFn.
flags [in]Reserved for future use. Set to 0.
classifyHandle [out]A pointer to a variable that receives a classification handle. This handle is needed by subsequent function calls as noted in Remarks.
The FwpsAcquireClassifyHandle0 function returns one of the following NTSTATUS codes.
| Return code | Description |
|---|---|
| STATUS_SUCCESS | A handle to the classify request was successfully returned. The variable that the classifyHandle parameter points to contains the handle for the classify request. |
| Other status codes | An error occurred. |
FwpsAcquireClassifyHandle0 is a support function for asynchronous classification and data modification. The handle returned by this function is required as a parameter for the following functions:
For each call to this function, the callout driver must call FwpsReleaseClassifyHandle0 to free the system resources associated with the handle.