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////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2014 Microsoft Corporation. All Rights Reserved.
//
// Module Name:
// HelperFunctions_PendData.h
//
// Abstract:
// This module contains prototypes for kernel helper functions that assist with PEND_DATA.
//
// Author:
// Dusty Harper (DHarper)
//
// Revision History:
//
// [ Month ][Day] [Year] - [Revision]-[ Comments ]
// May 01, 2010 - 1.0 - Creation
// December 13, 2013 - 1.1 - Add support for pending at
// FWPM_LAYER_ALE_ENDPOINT_CLOSURE
//
////////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef HELPERFUNCTIONS_PEND_DATA_H
#define HELPERFUNCTIONS_PEND_DATA_H
typedef struct PEND_DATA_
{
HANDLE completionContext;
UINT64 classifyHandle;
NET_BUFFER_LIST* pNBL;
UINT16 layerID;
BOOLEAN isPended;
BYTE pReserved[1];
union
{
PC_PEND_AUTHORIZATION_DATA* pPendAuthorizationData;
PC_PEND_ENDPOINT_CLOSURE_DATA* pPendEndpointClosureData;
VOID* pPCPendData;
};
FWPS_CLASSIFY_OUT classifyOut;
}PEND_DATA, *PPEND_DATA;
_IRQL_requires_min_(PASSIVE_LEVEL)
_IRQL_requires_max_(DISPATCH_LEVEL)
_IRQL_requires_same_
inline VOID KrnlHlprPendDataPurge(_Inout_ PEND_DATA* pPendData);
_At_(ppPendData, _Pre_ _Notnull_)
_At_(*ppPendData, _Post_ _Null_ __drv_freesMem(Pool))
_IRQL_requires_min_(PASSIVE_LEVEL)
_IRQL_requires_max_(DISPATCH_LEVEL)
_IRQL_requires_same_
_Success_(*ppPendData == 0)
VOID KrnlHlprPendDataDestroy(_Inout_ PEND_DATA** ppPendData);
_IRQL_requires_min_(PASSIVE_LEVEL)
_IRQL_requires_max_(DISPATCH_LEVEL)
_IRQL_requires_same_
_Check_return_
_Success_(return == STATUS_SUCCESS)
NTSTATUS KrnlHlprPendDataPopulate(_Inout_ PEND_DATA* pPendData,
_In_ const FWPS_INCOMING_VALUES* pClassifyValues,
_In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata,
_In_opt_ NET_BUFFER_LIST* pNBL,
_In_ const FWPS_FILTER* pFilter,
_In_opt_ VOID* pClassifyContext = 0,
_In_opt_ FWPS_CLASSIFY_OUT* pClassifyOut = 0);
_At_(*ppPendData, _Pre_ _Null_)
_When_(return != STATUS_SUCCESS, _At_(*ppPendData, _Post_ _Null_))
_When_(return == STATUS_SUCCESS, _At_(*ppPendData, _Post_ _Notnull_ __drv_allocatesMem(Pool)))
_IRQL_requires_min_(PASSIVE_LEVEL)
_IRQL_requires_max_(DISPATCH_LEVEL)
_IRQL_requires_same_
_Check_return_
_Success_(return == STATUS_SUCCESS)
NTSTATUS KrnlHlprPendDataCreate(_Outptr_ PEND_DATA** ppPendData,
_In_ const FWPS_INCOMING_VALUES* pClassifyValues,
_In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata,
_In_opt_ NET_BUFFER_LIST* pNBL,
_In_ const FWPS_FILTER* pFilter,
_In_opt_ VOID* pClassifyContext = 0,
_In_opt_ FWPS_CLASSIFY_OUT* pClassifyOut = 0);
#endif /// HELPERFUNCTIONS_PEND_DATA_H
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