Sample Code
Windows Driver Samples/ Windows Filtering Platform Sample/ C++/ sys/ CompletionFunctions_TransparentProxyCallouts.cpp/
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | //////////////////////////////////////////////////////////////////////////////////////////////////////// Copyright (c) 2012 Microsoft Corporation. All Rights Reserved.//// Module Name:// CompletionFunctions_TransparentProxyCallouts.cpp//// Abstract:// This module contains WFP Completion functions for transparently proxying connections.//// Naming Convention://// <Module><Scenario>// // i.e.// CompleteTransparentProxy//// <Module>// Complete - Function is an FWPS_INJECT_COMPLETE function.// <Scenario>// TransparentProxy - Function demonstrates the.//// <Object><Action>//// i.e.// TransparentProxyCompletionDataDestroy//// <Object>// {// TransparentProxyCompletionData - pertains to TRANSPARENT_PROXY_COMPLETION_DATA.// }// <Action>// Destroy - Cleans up and frees all memory in the object.//// Private Functions://// Public Functions:// CompleteTransparentProxy(),// TransparentProxyCompletionDataDestroy(),//// Author:// Dusty Harper (DHarper)//// Revision History://// [ Month ][Day] [Year] - [Revision]-[ Comments ]// May 01, 2010 - 1.0 - Creation//////////////////////////////////////////////////////////////////////////////////////////////////////#include "Framework_WFPSamplerCalloutDriver.h" /// .#include "CompletionFunctions_TransparentProxyCallouts.tmh" /// $(OBJ_PATH)\$(O)\#if(NTDDI_VERSION >= NTDDI_WIN8)/** @private_function="TransparentProxyCompletionDataDestroy" Purpose: <br> <br> Notes: <br> <br> MSDN_Ref: <br>*/_At_(*ppCompletionData, _Pre_ _Notnull_)_At_(*ppCompletionData, _Post_ _Null_ __drv_freesMem(Pool))_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same__Success_(*ppCompletionData == 0)VOID TransparentProxyCompletionDataDestroy(_Inout_ TRANSPARENT_PROXY_COMPLETION_DATA** ppCompletionData, _In_ BOOLEAN override) /* FALSE */{#if DBG DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_INFO_LEVEL, " ---> TransparentProxyCompletionDataDestroy()\n");#endif /// DBG NT_ASSERT(ppCompletionData); NT_ASSERT(*ppCompletionData); TRANSPARENT_PROXY_COMPLETION_DATA* pCompletionData = *ppCompletionData; KIRQL originalIRQL = PASSIVE_LEVEL; KeAcquireSpinLock(&(pCompletionData->spinLock), &originalIRQL); pCompletionData->refCount--; if(pCompletionData->pClassifyData) { if(!(pCompletionData->performedInline)) KrnlHlprClassifyDataDestroyLocalCopy(&(pCompletionData->pClassifyData)); else { HLPR_DELETE(pCompletionData->pClassifyData, WFPSAMPLER_CALLOUT_DRIVER_TAG); } } if(pCompletionData->pInjectionData) KrnlHlprInjectionDataDestroy(&(pCompletionData->pInjectionData)); if(pCompletionData->pSendParams) { HLPR_DELETE_ARRAY(pCompletionData->pSendParams->remoteAddress, WFPSAMPLER_CALLOUT_DRIVER_TAG); HLPR_DELETE(pCompletionData->pSendParams, WFPSAMPLER_CALLOUT_DRIVER_TAG); } KeReleaseSpinLock(&(pCompletionData->spinLock), originalIRQL); if(pCompletionData->refCount == 0 || override) { HLPR_DELETE(*ppCompletionData, WFPSAMPLER_CALLOUT_DRIVER_TAG); }#if DBG DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_INFO_LEVEL, " <--- PendAuthorizationCompletionDataDestroy()\n");#endif /// DBG return;}/** @completion_function="CompleteTransparentProxy" Purpose: <br> <br> Notes: <br> <br>*/_IRQL_requires_min_(PASSIVE_LEVEL)_IRQL_requires_max_(DISPATCH_LEVEL)_IRQL_requires_same_VOID CompleteTransparentProxy(_In_ VOID* pContext, _Inout_ NET_BUFFER_LIST* pNetBufferList, _In_ BOOLEAN dispatchLevel){#if DBG DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_INFO_LEVEL, " ---> CompleteTransparentProxy()\n");#endif /// DBG UNREFERENCED_PARAMETER(dispatchLevel); NT_ASSERT(pContext); NT_ASSERT(pNetBufferList); NT_ASSERT(NT_SUCCESS(pNetBufferList->Status)); if(pNetBufferList->Status != STATUS_SUCCESS) DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_ERROR_LEVEL, " !!!! CompleteTransparentProxy() [status: %#x]\n", pNetBufferList->Status); FwpsFreeCloneNetBufferList(pNetBufferList, 0); TransparentProxyCompletionDataDestroy((TRANSPARENT_PROXY_COMPLETION_DATA**)&pContext);#if DBG DbgPrintEx(DPFLTR_IHVNETWORK_ID, DPFLTR_INFO_LEVEL, " <--- CompleteTransparentProxy()\n");#endif /// DBG return;}#endif /// (NTDDI_VERSION >= NTDDI_WIN8) |
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