diff options
| author | J M Rossy <[email protected]> | 2015-07-29 15:40:09 -0700 |
|---|---|---|
| committer | J M Rossy <[email protected]> | 2015-07-29 16:34:40 -0700 |
| commit | 5d61a4a79a1e96dc5d9af1e5e712c84507307544 (patch) | |
| tree | 49ed270893578cd18758b74ffcca16dc7ab948d6 /network/trans/WFPSampler/syslib/HelperFunctions_ClassifyData.cpp | |
| parent | 5d41613e26e147d2300c786bb2b34cb4b4067a25 (diff) | |
Samples update for public Windows 10 release
Fix #2 Enabling WPP Recorder in Sensors Samples causes errors
Fix #4 Add back fixed KMDOD sample
Add new BarcodeScanner sample in pos folder
Add new MagneticStripeReader sample in pos folder
Add new SynpaticsTouch sample in input folder
Add new Power Engine Plugin sample in pofx folder
Add new DeviceMft sample in avstream folder
Add new AvsCamera sample in root
Add new SimBatt sample in root
Add other pre-existing samples not yet released for Win10
Diffstat (limited to 'network/trans/WFPSampler/syslib/HelperFunctions_ClassifyData.cpp')
| -rw-r--r-- | network/trans/WFPSampler/syslib/HelperFunctions_ClassifyData.cpp | 493 |
1 files changed, 493 insertions, 0 deletions
diff --git a/network/trans/WFPSampler/syslib/HelperFunctions_ClassifyData.cpp b/network/trans/WFPSampler/syslib/HelperFunctions_ClassifyData.cpp new file mode 100644 index 00000000..fa2d4103 --- /dev/null +++ b/network/trans/WFPSampler/syslib/HelperFunctions_ClassifyData.cpp @@ -0,0 +1,493 @@ +//////////////////////////////////////////////////////////////////////////////////////////////////// +// +// Copyright (c) 2012 Microsoft Corporation. All Rights Reserved. +// +// Module Name: +// HelperFunctions_ClassifyData.cpp +// +// Abstract: +// This module contains kernel helper functions that assist with CLASSIFY_DATA. +// +// Naming Convention: +// +// <Module><Object><Action><Modifier> +// +// i.e. +// +// KrnlHlprClassifyDataCreateLocalCopy +// +// <Module> +// KrnlHlpr - Function is located in syslib\ and applies to kernel mode. +// <Object> +// ClassifyData - Function pertains to CLASSIFY_DATA objects. +// <Action> +// { +// Acquire - Function will take a reference on an object +// Create - Function allocates and fills memory. +// Destroy - Function cleans up and frees memory. +// Release - Function releases the reference on the object +// } +// <Modifer> +// LocalCopy - Function performs a deep copy of the parameters or takes references +// on complex structures. +// +// Private Functions: +// +// Public Functions: +// KrnlHlprAcquireDataCreateLocalCopy(), +// KrnlHlprClassifyDataCreateLocalCopy(), +// KrnlHlprClassifyDataDestroyLocalCopy(), +// KrnlHlprClassifyDataReleaseLocalCopy(), +// +// Author: +// Dusty Harper (DHarper) +// +// Revision History: +// +// [ Month ][Day] [Year] - [Revision]-[ Comments ] +// May 01, 2010 - 1.0 - Creation +// +//////////////////////////////////////////////////////////////////////////////////////////////////// + +#include "HelperFunctions_Include.h" /// . +#include "HelperFunctions_ClassifyData.tmh" /// $(OBJ_PATH)\$(O)\ + +INT64 g_OutstandingNBLReferences = 0; + +/** + @kernel_helper_function="KrnlHlprClassifyDataReleaseLocalCopy" + + Purpose: Release reference on NBLs and cleanup a local copy of a CLASSIFY_DATA. <br> + <br> + Notes: <br> + <br> + MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF551159.aspx <br> + HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF551208.aspx <br> +*/ +_IRQL_requires_min_(PASSIVE_LEVEL) +_IRQL_requires_max_(DISPATCH_LEVEL) +_IRQL_requires_same_ +inline VOID KrnlHlprClassifyDataReleaseLocalCopy(_Inout_ CLASSIFY_DATA* pClassifyData) +{ +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " ---> KrnlHlprClassifyDataReleaseLocalCopy()\n"); + +#endif /// DBG + + NT_ASSERT(pClassifyData); + + KrnlHlprFwpsClassifyOutDestroyLocalCopy((FWPS_CLASSIFY_OUT**)&(pClassifyData->pClassifyOut)); + + pClassifyData->flowContext = 0; + + KrnlHlprFwpsFilterDestroyLocalCopy((FWPS_FILTER**)&(pClassifyData->pFilter)); + +#if(NTDDI_VERSION >= NTDDI_WIN7) + + if(pClassifyData->classifyContextHandle) + FwpsReleaseClassifyHandle(pClassifyData->classifyContextHandle); + +#endif /// (NTDDI_VERSION >= NTDDI_WIN7) + + if(pClassifyData->pPacket) + { + if(pClassifyData->pClassifyValues) + { + if(pClassifyData->pClassifyValues->layerId == FWPS_LAYER_STREAM_V4 || + pClassifyData->pClassifyValues->layerId == FWPS_LAYER_STREAM_V4_DISCARD || + pClassifyData->pClassifyValues->layerId == FWPS_LAYER_STREAM_V6 || + pClassifyData->pClassifyValues->layerId == FWPS_LAYER_STREAM_V6_DISCARD) + KrnlHlprFwpsStreamCalloutIOPacketDestroyLocalCopy((FWPS_STREAM_CALLOUT_IO_PACKET**)&(pClassifyData->pPacket)); + else if(pClassifyData->chainedNBL) + { + BOOLEAN isDispatch = (KeGetCurrentIrql() == DISPATCH_LEVEL) ? TRUE : FALSE; + UINT32 numChainedNBLs = pClassifyData->numChainedNBLs; + + for(NET_BUFFER_LIST* pCurrentNBL = (NET_BUFFER_LIST*)pClassifyData->pPacket; + pCurrentNBL && + numChainedNBLs; + numChainedNBLs--) + { + NET_BUFFER_LIST* pNextNBL = NET_BUFFER_LIST_NEXT_NBL(pCurrentNBL); + + FwpsDereferenceNetBufferList(pCurrentNBL, + isDispatch); + + pCurrentNBL = pNextNBL; + +#if DBG + + InterlockedDecrement64((LONG64*)&(g_OutstandingNBLReferences)); + +#endif /// DBG + + } + } + else + { + BOOLEAN isDispatch = (KeGetCurrentIrql() == DISPATCH_LEVEL) ? TRUE : FALSE; + + FwpsDereferenceNetBufferList((NET_BUFFER_LIST*)pClassifyData->pPacket, + isDispatch); + +#if DBG + + InterlockedDecrement64((LONG64*)&(g_OutstandingNBLReferences)); + +#endif /// DBG + + } + } + + pClassifyData->pPacket = 0; + } + + KrnlHlprFwpsIncomingMetadataValuesDestroyLocalCopy((FWPS_INCOMING_METADATA_VALUES**)&(pClassifyData->pMetadataValues)); + + if(pClassifyData->pClassifyValues) + KrnlHlprFwpsIncomingValuesDestroyLocalCopy((FWPS_INCOMING_VALUES**)&(pClassifyData->pClassifyValues)); + + RtlZeroMemory(pClassifyData, + sizeof(CLASSIFY_DATA)); + +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " <--- KrnlHlprClassifyDataReleaseLocalCopy()\n"); + +#endif /// DBG + + return; +} + +/** + @kernel_helper_function="KrnlHlprClassifyDataDestroyLocalCopy" + + Purpose: Release reference on packet and cleanup and free a local copy of CLASSIFY_DATA. <br> + <br> + Notes: <br> + <br> + MSDN_Ref: <br> +*/ +_At_(*ppClassifyData, _Pre_ _Notnull_) +_At_(*ppClassifyData, _Post_ _Null_ __drv_freesMem(Pool)) +_IRQL_requires_min_(PASSIVE_LEVEL) +_IRQL_requires_max_(DISPATCH_LEVEL) +_IRQL_requires_same_ +_Success_(*ppClassifyData == 0) +inline VOID KrnlHlprClassifyDataDestroyLocalCopy(_Inout_ CLASSIFY_DATA** ppClassifyData) +{ +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " ---> KrnlHlprClassifyDataDestroyLocalCopy()\n"); + +#endif /// DBG + + NT_ASSERT(ppClassifyData); + + if(*ppClassifyData) + { + KrnlHlprClassifyDataReleaseLocalCopy(*ppClassifyData); + + HLPR_DELETE(*ppClassifyData, + WFPSAMPLER_SYSLIB_TAG); + } + +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " <--- KrnlHlprClassifyDataDestroyLocalCopy()\n"); + +#endif /// DBG + + return; +} + +/** + @kernel_helper_function="KrnlHlprClassifyDataAcquireLocalCopy" + + Purpose: Ppopulate a CLASSIFY_DATA with a local copy of data obtained from a + callout's classification. This local copy requiires taking a reference + on pPacket. <br> + <br> + Notes: <br> + <br> + MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF550085.aspx <br> + HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF551206.aspx <br> +*/ +_IRQL_requires_min_(PASSIVE_LEVEL) +_IRQL_requires_max_(DISPATCH_LEVEL) +_IRQL_requires_same_ +_Success_(return == STATUS_SUCCESS) +NTSTATUS KrnlHlprClassifyDataAcquireLocalCopy(_Inout_ CLASSIFY_DATA* pClassifyData, + _In_ const FWPS_INCOMING_VALUES* pClassifyValues, + _In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata, + _In_opt_ VOID* pPacket, + _In_opt_ const VOID* pClassifyContext, + _In_ const FWPS_FILTER* pFilter, + _In_ const UINT64 flowContext, + _In_ FWPS_CLASSIFY_OUT* pClassifyOut) +{ +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " ---> KrnlHlprClassifyDataAcquireLocalCopy()\n"); + +#endif /// DBG + + NT_ASSERT(pClassifyData); + NT_ASSERT(pClassifyValues); + NT_ASSERT(pMetadata); + NT_ASSERT(pFilter); + NT_ASSERT(pClassifyOut); + + NTSTATUS status = STATUS_SUCCESS; + + pClassifyData->pClassifyValues = KrnlHlprFwpsIncomingValuesCreateLocalCopy(pClassifyValues); + HLPR_BAIL_ON_NULL_POINTER_WITH_STATUS(pClassifyData->pClassifyValues, + status); + + pClassifyData->pMetadataValues = KrnlHlprFwpsIncomingMetadataValuesCreateLocalCopy(pMetadata); + HLPR_BAIL_ON_NULL_POINTER_WITH_STATUS(pClassifyData->pMetadataValues, + status); + + if(pPacket) + { + if(pClassifyValues->layerId == FWPS_LAYER_STREAM_V4 || + pClassifyValues->layerId == FWPS_LAYER_STREAM_V4_DISCARD || + pClassifyValues->layerId == FWPS_LAYER_STREAM_V6 || + pClassifyValues->layerId == FWPS_LAYER_STREAM_V6_DISCARD) + { + pClassifyData->pPacket = KrnlHlprFwpsStreamCalloutIOPacketCreateLocalCopy((FWPS_STREAM_CALLOUT_IO_PACKET*)pPacket); + HLPR_BAIL_ON_NULL_POINTER_WITH_STATUS(pClassifyData->pPacket, + status); + } + +#if(NTDDI_VERSION >= NTDDI_WIN7) + + /// LayerData at the FWPM_LAYER_ALE_{BIND/CONNECT}_REDIRECT_V{4/6} is obtained via KrnlHlprRedirectDataCreate() + else if(pClassifyValues->layerId == FWPS_LAYER_ALE_CONNECT_REDIRECT_V4 || + pClassifyValues->layerId == FWPS_LAYER_ALE_CONNECT_REDIRECT_V6 || + pClassifyValues->layerId == FWPS_LAYER_ALE_BIND_REDIRECT_V4 || + pClassifyValues->layerId == FWPS_LAYER_ALE_BIND_REDIRECT_V6) + { + pClassifyData->pPacket = 0; + } + +#endif /// (NTDDI_VERSION >= NTDDI_WIN7) + + else + { + if(NET_BUFFER_LIST_NEXT_NBL((NET_BUFFER_LIST*)pPacket)) + { + pClassifyData->chainedNBL = TRUE; + pClassifyData->numChainedNBLs = 1; + } + + if(pClassifyData->chainedNBL && + ( + /// The IPPACKET and IPFORWARD Layers allow for Fragment Grouping if the option is enabled + pClassifyValues->layerId == FWPS_LAYER_INBOUND_IPPACKET_V4 || + pClassifyValues->layerId == FWPS_LAYER_INBOUND_IPPACKET_V6 || + pClassifyValues->layerId == FWPS_LAYER_IPFORWARD_V4 || + pClassifyValues->layerId == FWPS_LAYER_IPFORWARD_V6 + +#if(NTDDI_VERSION >= NTDDI_WIN8) + + /// The NDIS layers allow for batched NBLs provided the callout was registered with FWP_CALLOUT_FLAG_ALLOW_L2_BATCH_CLASSIFY set + || + pClassifyValues->layerId == FWPS_LAYER_INBOUND_MAC_FRAME_ETHERNET || + pClassifyValues->layerId == FWPS_LAYER_OUTBOUND_MAC_FRAME_ETHERNET || + pClassifyValues->layerId == FWPS_LAYER_INBOUND_MAC_FRAME_NATIVE || + pClassifyValues->layerId == FWPS_LAYER_OUTBOUND_MAC_FRAME_NATIVE || + pClassifyValues->layerId == FWPS_LAYER_INGRESS_VSWITCH_ETHERNET || + pClassifyValues->layerId == FWPS_LAYER_EGRESS_VSWITCH_ETHERNET + +#endif /// (NTDDI_VERSION >= NTDDI_WIN8) + + )) + { + for(NET_BUFFER_LIST* pCurrentNBL = (NET_BUFFER_LIST*)pPacket; + pCurrentNBL; + pClassifyData->numChainedNBLs++) + { + NET_BUFFER_LIST* pNextNBL = NET_BUFFER_LIST_NEXT_NBL(pCurrentNBL); + + FwpsReferenceNetBufferList(pCurrentNBL, + TRUE); + + pCurrentNBL = pNextNBL; + +#if DBG + + InterlockedIncrement64((LONG64*)&(g_OutstandingNBLReferences)); + +#endif /// DBG + + } + + pClassifyData->pPacket = pPacket; + } + else + { + /// Otherwise we expect to receive a single NBL + NT_ASSERT(NET_BUFFER_LIST_NEXT_NBL((NET_BUFFER_LIST*)pPacket) == 0); + + FwpsReferenceNetBufferList((NET_BUFFER_LIST*)pPacket, + TRUE); + + pClassifyData->pPacket = pPacket; + +#if DBG + + InterlockedIncrement64((LONG64*)&(g_OutstandingNBLReferences)); + +#endif /// DBG + + } + } + } + +#if(NTDDI_VERSION >= NTDDI_WIN7) + + if(pClassifyContext) + { + /// ClassifyHandle for these layers is obtained in REDIRECT_DATA + if(pClassifyValues->layerId != FWPS_LAYER_ALE_CONNECT_REDIRECT_V4 && + pClassifyValues->layerId != FWPS_LAYER_ALE_CONNECT_REDIRECT_V6 && + pClassifyValues->layerId != FWPS_LAYER_ALE_BIND_REDIRECT_V4 && + pClassifyValues->layerId != FWPS_LAYER_ALE_BIND_REDIRECT_V6) + { + status = FwpsAcquireClassifyHandle((VOID*)pClassifyContext, + 0, + &(pClassifyData->classifyContextHandle)); + HLPR_BAIL_ON_FAILURE(status); + } + } +#else + + UNREFERENCED_PARAMETER(pClassifyContext); + +#endif /// (NTDDI_VERSION >= NTDDI_WIN7) + + if(pFilter) + { + pClassifyData->pFilter = KrnlHlprFwpsFilterCreateLocalCopy(pFilter); + HLPR_BAIL_ON_NULL_POINTER_WITH_STATUS(pClassifyData->pFilter, + status); + } + + pClassifyData->flowContext = flowContext; + + if(pClassifyOut) + { + pClassifyData->pClassifyOut = KrnlHlprFwpsClassifyOutCreateLocalCopy(pClassifyOut); + HLPR_BAIL_ON_NULL_POINTER_WITH_STATUS(pClassifyData->pClassifyOut, + status); + } + + HLPR_BAIL_LABEL: + + if(status != STATUS_SUCCESS) + KrnlHlprClassifyDataReleaseLocalCopy(pClassifyData); + +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " <--- KrnlHlprClassifyDataAcquireLocalCopy() [status: %#x]\n", + status); + +#endif /// DBG + + return status; +} + +/** + @kernel_helper_function="KrnlHlprClassifyDataCreateLocalCopy" + + Purpose: Allocate and populate a CLASSIFY_DATA with a local copy of data obtained from a + callout's classifyFn. This local copy requiires taking a reference on pPacket. <br> + <br> + Notes: <br> + <br> + MSDN_Ref: <br> +*/ +_At_(*ppClassifyData, _Pre_ _Null_) +_When_(return != STATUS_SUCCESS, _At_(*ppClassifyData, _Post_ _Null_)) +_When_(return == STATUS_SUCCESS, _At_(*ppClassifyData, _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 KrnlHlprClassifyDataCreateLocalCopy(_Outptr_ CLASSIFY_DATA** ppClassifyData, + _In_ const FWPS_INCOMING_VALUES* pClassifyValues, + _In_ const FWPS_INCOMING_METADATA_VALUES* pMetadata, + _In_opt_ VOID* pPacket, + _In_opt_ const VOID* pClassifyContext, + _In_ const FWPS_FILTER* pFilter, + _In_ const UINT64 flowContext, + _In_ FWPS_CLASSIFY_OUT* pClassifyOut) +{ +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " ---> KrnlHlprClassifyDataCreateLocalCopy()\n"); + +#endif /// DBG + + NT_ASSERT(ppClassifyData); + NT_ASSERT(pClassifyValues); + NT_ASSERT(pMetadata); + NT_ASSERT(pFilter); + NT_ASSERT(pClassifyOut); + + NTSTATUS status = STATUS_SUCCESS; + + HLPR_NEW(*ppClassifyData, + CLASSIFY_DATA, + WFPSAMPLER_SYSLIB_TAG); + HLPR_BAIL_ON_ALLOC_FAILURE(*ppClassifyData, + status); + + status = KrnlHlprClassifyDataAcquireLocalCopy(*ppClassifyData, + pClassifyValues, + pMetadata, + pPacket, + pClassifyContext, + pFilter, + flowContext, + pClassifyOut); + + HLPR_BAIL_LABEL: + +#pragma warning(push) +#pragma warning(disable: 6001) /// *ppClassifyData initialized with call to HLPR_NEW & KrnlHlprClassifyDataAcquireLocalCopy + + if(status != STATUS_SUCCESS && + *ppClassifyData) + KrnlHlprClassifyDataDestroyLocalCopy(ppClassifyData); + +#pragma warning(pop) + +#if DBG + + DbgPrintEx(DPFLTR_IHVNETWORK_ID, + DPFLTR_INFO_LEVEL, + " ---> KrnlHlprClassifyDataCreateLocalCopy() [status: %#x]\n", + status); + +#endif /// DBG + + return status; +} |
