https://github.com/zouxianyu/KernelHiddenExecute
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parent
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# Auto detect text files and perform LF normalization
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* text=auto
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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 14
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VisualStudioVersion = 14.0.25420.1
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "KernelHiddenExcute", "KernelHiddenExcute\KernelHiddenExcute.vcxproj", "{B6DD98D0-0343-41DD-94FC-542035EE9B88}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|ARM = Debug|ARM
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Debug|ARM64 = Debug|ARM64
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Debug|x64 = Debug|x64
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Debug|x86 = Debug|x86
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Release|ARM = Release|ARM
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Release|ARM64 = Release|ARM64
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Release|x64 = Release|x64
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Release|x86 = Release|x86
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EndGlobalSection
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||||
GlobalSection(ProjectConfigurationPlatforms) = postSolution
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|ARM.ActiveCfg = Debug|ARM
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|ARM.Build.0 = Debug|ARM
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|ARM.Deploy.0 = Debug|ARM
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|ARM64.ActiveCfg = Debug|ARM64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|ARM64.Build.0 = Debug|ARM64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|ARM64.Deploy.0 = Debug|ARM64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|x64.ActiveCfg = Debug|x64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|x64.Build.0 = Debug|x64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|x64.Deploy.0 = Debug|x64
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{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|x86.ActiveCfg = Debug|Win32
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{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|x86.Build.0 = Debug|Win32
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Debug|x86.Deploy.0 = Debug|Win32
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|ARM.ActiveCfg = Release|ARM
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|ARM.Build.0 = Release|ARM
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|ARM.Deploy.0 = Release|ARM
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|ARM64.ActiveCfg = Release|ARM64
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{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|ARM64.Build.0 = Release|ARM64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|ARM64.Deploy.0 = Release|ARM64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|x64.ActiveCfg = Release|x64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|x64.Build.0 = Release|x64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|x64.Deploy.0 = Release|x64
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|x86.ActiveCfg = Release|Win32
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|x86.Build.0 = Release|Win32
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||||
{B6DD98D0-0343-41DD-94FC-542035EE9B88}.Release|x86.Deploy.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal
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#pragma once
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#include <ntifs.h>
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#include <ntddk.h>
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#include <stdlib.h>
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#include <windef.h>
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#include <ntimage.h>
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#include <intrin.h>
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#include "MyDebugPrint.h"
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#include "PhysicalMemoryOperation.h"
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#include "SectionOperation.h"
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#include "HiddenExecute.h"
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#include "HiddenCallApiTransfer.h"
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#include "HiddenFunctions.h"
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#define DEVICE_NAME L"\\Device\\KernelHiddenExcute"
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#define LINK_NAME L"\\DosDevices\\Global\\KernelHiddenExcute"
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#define IOCTL_TEST CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS)
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PHIDDEN_PAGE_RECORD g_pHiddenPageRecord = NULL;
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#pragma once
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#include "Head.h"
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/*********************************************************
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function: SimulateApi
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description:
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**********************************************************/
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NTSTATUS SimulateApi(ULONG64 param1)
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{
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MyPrint(_TitleAndFunc"param1:%16IX\n", param1);
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return STATUS_SUCCESS;
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}
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/*********************************************************
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function: ApiTransfer_SimulateApi
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description: test of call apis in the hidden apis
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**********************************************************/
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NTSTATUS ApiTransfer_SimulateApi(PHIDDEN_PAGE_RECORD pHiddenPageRecord, ULONG64 param1)
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{
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//BOOL IsIrqlChanged = FALSE;
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NTSTATUS Status;
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/*
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if (HighestIrql < HIDDEN_IRQL)
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{
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ChangeIrql(HighestIrql);
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IsIrqlChanged = TRUE;
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}
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*/
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ContextHiddenToOriginal(pHiddenPageRecord);
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Status = SimulateApi(param1);
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ContextOriginalToHidden(pHiddenPageRecord);
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/*
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if (IsIrqlChanged)
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ChangeIrql(HIDDEN_IRQL);
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*/
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return Status;
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}
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#pragma once
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#include "Head.h"
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/*********************************************************
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description:
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notice!!! run in IRQL >= DPC_LEVEL
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call apis maybe due to lower irql
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in order to hidden real code in the non-mapped physical pages,and clear original codes
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before call the hidden functions,we should map the physical pages to correct position.
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if we have to call windows api in our hidden functions,we should call the transfer functions(not hidden)
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features of transfer functions:check & change irql,restore & rewrite page table(pte),call specific apis
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reserve the physical pages by Api:MmMarkPhysicalMemoryAsBad,prevent the allocation of our physical pages space
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**********************************************************/
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#define SECTION_NAME_HIDDEN ".hidden"
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#define HIDDEN_IRQL DISPATCH_LEVEL
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#define ChangeIrql(x) WriteCR8(x)
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#define ClearPageTableFlag(x) ClearCR3Flag(x)
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#define HIDDEN_PAGE_RECORD_LENGTH 0x1000
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#define MAX_HIDDEN_PAGE_COUNT 126 // (4096 - 40) / (4 * 8) = 126.75
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typedef struct _MMPTE
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{
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struct /* bitfield */
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{
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/* 0x0000 */ unsigned __int64 Valid : 1; /* bit position: 0 */
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/* 0x0000 */ unsigned __int64 Dirty1 : 1; /* bit position: 1 */
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/* 0x0000 */ unsigned __int64 Owner : 1; /* bit position: 2 */
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/* 0x0000 */ unsigned __int64 WriteThrough : 1; /* bit position: 3 */
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/* 0x0000 */ unsigned __int64 CacheDisable : 1; /* bit position: 4 */
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/* 0x0000 */ unsigned __int64 Accessed : 1; /* bit position: 5 */
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/* 0x0000 */ unsigned __int64 Dirty : 1; /* bit position: 6 */
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/* 0x0000 */ unsigned __int64 LargePage : 1; /* bit position: 7 */
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/* 0x0000 */ unsigned __int64 Global : 1; /* bit position: 8 */
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/* 0x0000 */ unsigned __int64 CopyOnWrite : 1; /* bit position: 9 */
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/* 0x0000 */ unsigned __int64 Unused : 1; /* bit position: 10 */
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/* 0x0000 */ unsigned __int64 Write : 1; /* bit position: 11 */
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/* 0x0000 */ unsigned __int64 PageFrameNumber : 36; /* bit position: 12 */
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/* 0x0000 */ unsigned __int64 reserved1 : 4; /* bit position: 48 */
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/* 0x0000 */ unsigned __int64 SoftwareWsIndex : 11; /* bit position: 52 */
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/* 0x0000 */ unsigned __int64 NoExecute : 1; /* bit position: 63 */
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}; /* bitfield */
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} MMPTE, *PMMPTE; /* size: 0x0008 */
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typedef struct _SPECIFIC_HIDDEN_PAGE_RECORD
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{
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PVOID pHiddenBase;
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PMMPTE pPTE;
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ULONG64 OriginalPfn;
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ULONG64 HiddenPfn;
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}SPECIFIC_HIDDEN_PAGE_RECORD, *PSPECIFIC_HIDDEN_PAGE_RECORD;
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typedef struct _HIDDEN_PAGE_RECORD
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{
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BOOL IsHidden;
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KIRQL OriginalIrql;
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BOOL IsIrqlChanged;
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KSPIN_LOCK SpinLock;
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ULONG64 Count;
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SPECIFIC_HIDDEN_PAGE_RECORD Record[MAX_HIDDEN_PAGE_COUNT - 1];
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}HIDDEN_PAGE_RECORD, *PHIDDEN_PAGE_RECORD;
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PHYSICAL_OP_CR3 g_PhysicalOpCR3 = { 0 };
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BOOL g_IsHiddenOpInit = FALSE;
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NTSYSAPI NTSTATUS MmMarkPhysicalMemoryAsBad(IN PPHYSICAL_ADDRESS, IN OUT PLARGE_INTEGER);
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NTSYSAPI NTSTATUS MmMarkPhysicalMemoryAsGood(IN PPHYSICAL_ADDRESS, IN OUT PLARGE_INTEGER);
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/*********************************************************
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function: InitializeHiddenPageRecordStructure
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description: initialize the structure:initialize spin lock & set count to zero
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calls: ExAllocatePool
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KeInitializeSpinLock
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CreatePhysicalOpCR3BySystemCR3
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**********************************************************/
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NTSTATUS InitializeHiddenPageRecordStructure(PHIDDEN_PAGE_RECORD* ppHiddenPageRecord)
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{
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//check the init state
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if (g_IsHiddenOpInit)
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return STATUS_UNSUCCESSFUL;
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PHIDDEN_PAGE_RECORD pHiddenPageRecord = NULL;
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pHiddenPageRecord = (PHIDDEN_PAGE_RECORD)ExAllocatePool(NonPagedPool, HIDDEN_PAGE_RECORD_LENGTH);
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*ppHiddenPageRecord = pHiddenPageRecord;
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MyPrint(_TitleAndFunc"pHiddenPageRecord:%16IX\n", pHiddenPageRecord);
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if (pHiddenPageRecord != NULL)
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{
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//set count to zero
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pHiddenPageRecord->Count = 0;
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//initialize spin lock
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KeInitializeSpinLock(&pHiddenPageRecord->SpinLock);
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//initialize physical memory context
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CreatePhysicalOpCR3BySystemCR3(GetCR3ByPID(4), &g_PhysicalOpCR3);
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//change init state
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g_IsHiddenOpInit = TRUE;
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return STATUS_SUCCESS;
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}
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else {
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return STATUS_UNSUCCESSFUL;
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}
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}
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/*********************************************************
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function: FreeHiddenPageRecordStructure
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description: free the structure and set pHiddenPageRecord to zero
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calls: ExFreePool
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**********************************************************/
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NTSTATUS FreeHiddenPageRecordStructure(PHIDDEN_PAGE_RECORD pHiddenPageRecord)
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{
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//check the init state
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if (!g_IsHiddenOpInit)
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return STATUS_UNSUCCESSFUL;
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if (pHiddenPageRecord != NULL)
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{
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//free hidden operation structure
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ExFreePool(pHiddenPageRecord);
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pHiddenPageRecord = NULL;
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//free physical operation structure
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FreePhysicalOpCR3(&g_PhysicalOpCR3);
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//change the init state
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g_IsHiddenOpInit = FALSE;
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return STATUS_SUCCESS;
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}
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else {
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return STATUS_UNSUCCESSFUL;
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}
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}
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/*********************************************************
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function: pPTEPFNtoPhysicalAddress
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description: translate pfn number to physical address
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**********************************************************/
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PVOID pPTEPFNtoPhysicalAddress(ULONG64 PFN)
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{
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return (PVOID)(PFN << 12);
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}
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/*********************************************************
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function: pPhysicalAddresstoPTEPFN
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description: translate physical address to pfn number
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**********************************************************/
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ULONG64 pPhysicalAddresstoPTEPFN(PVOID PhysicalAddressBase)
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{
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return (ULONG64)PhysicalAddressBase >> 12;
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}
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/*********************************************************
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function: pGetSpecificAddresspPTEPhysical
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description: get the pointer of pPTEPhysical
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calls: ContextVirtualToPhysical
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ClearPageTableFlag
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ContextPhysicalToVirtual
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**********************************************************/
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PMMPTE pGetSpecificAddresspPTEPhysical(ULONG64 CR3, PVOID pPageBase)
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{
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//analyse the params
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PMMVA pAddressInfo = (PMMVA)&pPageBase;
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PVOID pPML4T = (PVOID)ClearCR3Flag(CR3);
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PMMPTE pPML4E = NULL;
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PVOID pPDPT = NULL;
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PMMPTE pPDPTE = NULL;
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PVOID pPDT = NULL;
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PMMPTE pPDE = NULL;
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PVOID pPT = NULL;
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PMMPTE pPTE = NULL;
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//switch to physical context
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ContextVirtualToPhysical(&g_PhysicalOpCR3);
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pPML4E = (PMMPTE)((ULONG64)pPML4T + pAddressInfo->PML4T*ENTRY_SIZE);
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if (!pPML4E->Valid)
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goto Lable_Error;
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pPDPT = (PVOID)ClearPageTableFlag(*(PULONG64)pPML4E);
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pPDPTE = (PMMPTE)((ULONG64)pPDPT + pAddressInfo->PDPT*ENTRY_SIZE);
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if (pPDPTE->LargePage || !pPDPTE->Valid)
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goto Lable_Error;
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pPDT = (PVOID)ClearPageTableFlag(*(PULONG64)pPDPTE);
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pPDE = (PMMPTE)((ULONG64)pPDT + pAddressInfo->PDT*ENTRY_SIZE);
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if (pPDE->LargePage || !pPDE->Valid)
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goto Lable_Error;
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pPT = (PVOID)ClearPageTableFlag(*(PULONG64)pPDE);
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pPTE = (PMMPTE)((ULONG64)pPT + pAddressInfo->PT*ENTRY_SIZE);
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if (!pPTE->Valid)
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goto Lable_Error;
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ContextPhysicalToVirtual(&g_PhysicalOpCR3);
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//look up the page table finished
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MyPrint(_TitleAndFunc"pPTE:%16IX\n", pPTE);
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return pPTE;
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Lable_Error:
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ContextPhysicalToVirtual(&g_PhysicalOpCR3);
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return NULL;
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}
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/*********************************************************
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function: pGetSpecificAddressPhysicalForR3
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description: just for E language
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**********************************************************/
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#define PHYSICAL_OFFSET 0x8000000000
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#define NUM_1G 0x40000000
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#define NUM_2M 0x200000
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PVOID pGetSpecificAddressPhysicalForR3(ULONG64 CR3, PVOID pVirtual)
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{
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//analyse the params
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||||
PMMVA pAddressInfo = (PMMVA)&pVirtual;
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PVOID pPML4T = (PVOID)ClearCR3Flag(CR3);
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PMMPTE pPML4E = NULL;
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||||
PVOID pPDPT = NULL;
|
||||
PMMPTE pPDPTE = NULL;
|
||||
PVOID pPDT = NULL;
|
||||
PMMPTE pPDE = NULL;
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||||
PVOID pPT = NULL;
|
||||
PMMPTE pPTE = NULL;
|
||||
PVOID pPhysicalBase = NULL;
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||||
PVOID pPhysical = NULL;
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PVOID pPhysicalR3 = NULL;
|
||||
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||||
pPML4E = (PMMPTE)((ULONG64)pPML4T + pAddressInfo->PML4T*ENTRY_SIZE + PHYSICAL_OFFSET);
|
||||
if (!pPML4E->Valid)
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||||
return NULL;
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||||
pPDPT = (PVOID)ClearPageTableFlag(*(PULONG64)pPML4E);
|
||||
|
||||
pPDPTE = (PMMPTE)((ULONG64)pPDPT + pAddressInfo->PDPT*ENTRY_SIZE + PHYSICAL_OFFSET);
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||||
if (!pPDPTE->Valid)
|
||||
return NULL;
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||||
if (pPDPTE->LargePage)
|
||||
goto Lable_PDPTE_LargePage;
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||||
pPDT = (PVOID)ClearPageTableFlag(*(PULONG64)pPDPTE);
|
||||
|
||||
pPDE = (PMMPTE)((ULONG64)pPDT + pAddressInfo->PDT*ENTRY_SIZE + PHYSICAL_OFFSET);
|
||||
if (!pPDE->Valid)
|
||||
return NULL;
|
||||
if (pPDE->LargePage)
|
||||
goto Lable_PDE_LargePage;
|
||||
pPT = (PVOID)ClearPageTableFlag(*(PULONG64)pPDE);
|
||||
|
||||
pPTE = (PMMPTE)((ULONG64)pPT + pAddressInfo->PT*ENTRY_SIZE + PHYSICAL_OFFSET);
|
||||
if (!pPTE->Valid)
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||||
return NULL;
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||||
pPhysicalBase = (PVOID)ClearPageTableFlag(*(PULONG64)pPTE);
|
||||
|
||||
pPhysical = (PVOID)((ULONG64)pPhysicalBase + pAddressInfo->Offset);
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||||
pPhysicalR3 = (PVOID)((ULONG64)pPhysical + PHYSICAL_OFFSET);
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return pPhysicalR3;
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||||
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||||
Lable_PDPTE_LargePage:
|
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pPhysicalBase = (PVOID)(((PMMPDPTE)pPDPTE)->PageFrameNumber*NUM_1G);
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pPhysical = (PVOID)((ULONG64)pPhysicalBase + ((PMMVA_PDPTE_LARGE)pAddressInfo)->Offset);
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pPhysicalR3 = (PVOID)((ULONG64)pPhysical + PHYSICAL_OFFSET);
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return pPhysicalR3;
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Lable_PDE_LargePage:
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||||
pPhysicalBase = (PVOID)(((PMMPDE)pPDE)->PageFrameNumber*NUM_2M);
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||||
pPhysical = (PVOID)((ULONG64)pPhysicalBase + ((PMMVA_PDE_LARGE)pAddressInfo)->Offset);
|
||||
pPhysicalR3 = (PVOID)((ULONG64)pPhysical + PHYSICAL_OFFSET);
|
||||
return pPhysicalR3;
|
||||
}
|
||||
/*********************************************************
|
||||
function: AddHiddenPageRecord
|
||||
description: add a record element to the structure
|
||||
include get pte physical address of the specific page and record the pfn
|
||||
reserve a physical page by api:MmAllocateNonCachedMemory and MmMarkPhysicalMemoryAsBad
|
||||
then free the page
|
||||
|
||||
calls: KeAcquireSpinLock
|
||||
pGetSpecificAddresspPTEPhysical
|
||||
ContextVirtualToPhysical
|
||||
ContextPhysicalToVirtual
|
||||
MmAllocateNonCachedMemory
|
||||
MmGetPhysicalAddress
|
||||
pPhysicalAddresstoPTEPFN
|
||||
MmFreeNonCachedMemory
|
||||
MmMarkPhysicalMemoryAsBad
|
||||
KeReleaseSpinLock
|
||||
**********************************************************/
|
||||
NTSTATUS AddHiddenPageRecord(ULONG64 CR3, PVOID pHiddenPageBase, PHIDDEN_PAGE_RECORD pHiddenPageRecord)
|
||||
{
|
||||
KIRQL EntryIrql;
|
||||
NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
||||
//prevent mulit-thread change the page record count
|
||||
KeAcquireSpinLock(&pHiddenPageRecord->SpinLock, &EntryIrql);
|
||||
|
||||
//check count
|
||||
MyPrint(_TitleAndFunc"pHiddenPageRecord->Count:%16IX\n", pHiddenPageRecord->Count);
|
||||
if (pHiddenPageRecord->Count == MAX_HIDDEN_PAGE_COUNT)
|
||||
goto Lable_Error;
|
||||
|
||||
//add pPTE record
|
||||
PSPECIFIC_HIDDEN_PAGE_RECORD pCurrentRecord = &pHiddenPageRecord->Record[pHiddenPageRecord->Count];
|
||||
|
||||
pCurrentRecord->pPTE = pGetSpecificAddresspPTEPhysical(CR3, pHiddenPageBase);
|
||||
MyPrint(_TitleAndFunc"pCurrentRecord->pPTE:%16IX\n", pCurrentRecord->pPTE);
|
||||
if (pCurrentRecord->pPTE == NULL)
|
||||
goto Lable_Error;
|
||||
|
||||
//add hidden virtual address record
|
||||
pCurrentRecord->pHiddenBase = pHiddenPageBase;
|
||||
MyPrint(_TitleAndFunc"pCurrentRecord->pHiddenBase:%16IX\n", pCurrentRecord->pHiddenBase);
|
||||
|
||||
//add original pfn record
|
||||
ContextVirtualToPhysical(&g_PhysicalOpCR3);
|
||||
pCurrentRecord->OriginalPfn = pCurrentRecord->pPTE->PageFrameNumber;
|
||||
ContextPhysicalToVirtual(&g_PhysicalOpCR3);
|
||||
|
||||
MyPrint(_TitleAndFunc"pCurrentRecord->OriginalPfn:%16IX\n", pCurrentRecord->OriginalPfn);
|
||||
|
||||
//add hidden pfn record
|
||||
//allocate memory
|
||||
//record the physical address
|
||||
//then free the memory and mark it as bad
|
||||
PVOID TemporaryVirtual = MmAllocateNonCachedMemory(PAGE_SIZE);
|
||||
if (TemporaryVirtual == NULL)
|
||||
goto Lable_Error;
|
||||
|
||||
PHYSICAL_ADDRESS TemporaryPhysical = MmGetPhysicalAddress(TemporaryVirtual);
|
||||
LARGE_INTEGER PhysicalLength = { 0 };
|
||||
PhysicalLength.QuadPart = PAGE_SIZE;
|
||||
|
||||
pCurrentRecord->HiddenPfn = pPhysicalAddresstoPTEPFN((PVOID)(TemporaryPhysical.QuadPart));
|
||||
MyPrint(_TitleAndFunc"pCurrentRecord->HiddenPfn:%16IX\n", pCurrentRecord->HiddenPfn);
|
||||
|
||||
MmFreeNonCachedMemory(TemporaryVirtual, PAGE_SIZE);
|
||||
|
||||
Status = MmMarkPhysicalMemoryAsBad(&TemporaryPhysical, &PhysicalLength);
|
||||
|
||||
//copy codes to the new non-mapped physical address
|
||||
ContextVirtualToPhysical(&g_PhysicalOpCR3);
|
||||
RtlCopyMemory((PVOID)(TemporaryPhysical.QuadPart),
|
||||
pCurrentRecord->pHiddenBase,
|
||||
PAGE_SIZE
|
||||
);
|
||||
ContextPhysicalToVirtual(&g_PhysicalOpCR3);
|
||||
|
||||
//check the mark state
|
||||
if (!NT_SUCCESS(Status))
|
||||
goto Lable_Error;
|
||||
|
||||
//the last step:count +1
|
||||
pHiddenPageRecord->Count++;
|
||||
|
||||
//release spin lock
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
return STATUS_SUCCESS;
|
||||
|
||||
Lable_Error:
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: RemoveAndRestoreAllHiddenPageRecord
|
||||
description: remove and restore all the records of the structure
|
||||
include mark hidden physical memory as good,
|
||||
change mapping relations,
|
||||
and invalid the specific TLB
|
||||
|
||||
calls: KeAcquireSpinLock
|
||||
pPTEPFNtoPhysicalAddress
|
||||
MmMarkPhysicalMemoryAsGood
|
||||
ContextVirtualToPhysical
|
||||
ContextPhysicalToVirtual
|
||||
__invlpg
|
||||
KeReleaseSpinLock
|
||||
**********************************************************/
|
||||
NTSTATUS RemoveAndRestoreAllHiddenPageRecord(PHIDDEN_PAGE_RECORD pHiddenPageRecord)
|
||||
{
|
||||
KIRQL EntryIrql;
|
||||
NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
||||
//prevent mulit-thread change the page record count
|
||||
KeAcquireSpinLock(&pHiddenPageRecord->SpinLock, &EntryIrql);
|
||||
|
||||
//assert we have elements
|
||||
if (pHiddenPageRecord->Count == 0)
|
||||
goto Lable_Error;
|
||||
|
||||
//restore all records and mark all the hidden physical memory as good
|
||||
PSPECIFIC_HIDDEN_PAGE_RECORD pCurrentRecord = NULL;
|
||||
PHYSICAL_ADDRESS CurrentHiddenPhysical = { 0 };
|
||||
LARGE_INTEGER PhysicalLength = { 0 };
|
||||
|
||||
PhysicalLength.QuadPart = PAGE_SIZE;
|
||||
|
||||
for (int i = 0; i < pHiddenPageRecord->Count; i++)
|
||||
{
|
||||
pCurrentRecord = &pHiddenPageRecord->Record[i];
|
||||
CurrentHiddenPhysical.QuadPart = (ULONG64)pPTEPFNtoPhysicalAddress(pCurrentRecord->HiddenPfn);
|
||||
|
||||
//mark it as good
|
||||
MmMarkPhysicalMemoryAsGood(&CurrentHiddenPhysical, &PhysicalLength);
|
||||
|
||||
//restore all page mapping relations
|
||||
ContextVirtualToPhysical(&g_PhysicalOpCR3);
|
||||
pCurrentRecord->pPTE->PageFrameNumber = pCurrentRecord->OriginalPfn;
|
||||
ContextPhysicalToVirtual(&g_PhysicalOpCR3);
|
||||
|
||||
//invalid the TLB of current hidden address
|
||||
__invlpg(pCurrentRecord->pHiddenBase);
|
||||
}
|
||||
|
||||
//set count to zero
|
||||
pHiddenPageRecord->Count = 0;
|
||||
|
||||
//release spin lock
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
return STATUS_SUCCESS;
|
||||
|
||||
Lable_Error:
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: ContextOriginalToHidden
|
||||
description: switch to hidden code,so that we can call our hidden functions
|
||||
|
||||
calls: KeGetCurrentIrql
|
||||
KeRaiseIrqlToDpcLevel
|
||||
_disable
|
||||
KeAcquireSpinLock
|
||||
ContextVirtualToPhysical
|
||||
ContextPhysicalToVirtual
|
||||
__invlpg
|
||||
KeReleaseSpinLock
|
||||
**********************************************************/
|
||||
NTSTATUS ContextOriginalToHidden(PHIDDEN_PAGE_RECORD pHiddenPageRecord)
|
||||
{
|
||||
KIRQL EntryIrql;
|
||||
NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
||||
|
||||
//record original irql
|
||||
pHiddenPageRecord->OriginalIrql = KeGetCurrentIrql();
|
||||
MyPrint(_TitleAndFunc"pHiddenPageRecord->OriginalIrql:%16IX\n", pHiddenPageRecord->OriginalIrql);
|
||||
|
||||
//assert irql >= dispatch level
|
||||
if (pHiddenPageRecord->OriginalIrql < DISPATCH_LEVEL)
|
||||
{
|
||||
pHiddenPageRecord->IsIrqlChanged = TRUE;
|
||||
KeRaiseIrqlToDpcLevel();
|
||||
}
|
||||
|
||||
//disable task switch interrupt(maskable)
|
||||
_disable();
|
||||
|
||||
//prevent mulit-thread change the page record count
|
||||
KeAcquireSpinLock(&pHiddenPageRecord->SpinLock, &EntryIrql);
|
||||
|
||||
//assert we have elements
|
||||
if (pHiddenPageRecord->Count == 0)
|
||||
goto Lable_Error;
|
||||
|
||||
//check the initialize state and current hidden state
|
||||
if (!g_IsHiddenOpInit || pHiddenPageRecord->IsHidden)
|
||||
goto Lable_Error;
|
||||
|
||||
//restore all records and mark all the hidden physical memory as good
|
||||
PSPECIFIC_HIDDEN_PAGE_RECORD pCurrentRecord = NULL;
|
||||
|
||||
for (int i = 0; i < pHiddenPageRecord->Count; i++)
|
||||
{
|
||||
pCurrentRecord = &pHiddenPageRecord->Record[i];
|
||||
|
||||
//change all page mapping relations
|
||||
ContextVirtualToPhysical(&g_PhysicalOpCR3);
|
||||
pCurrentRecord->pPTE->PageFrameNumber = pCurrentRecord->HiddenPfn;
|
||||
ContextPhysicalToVirtual(&g_PhysicalOpCR3);
|
||||
|
||||
//invalid the TLB of current hidden address
|
||||
__invlpg(pCurrentRecord->pHiddenBase);
|
||||
}
|
||||
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
|
||||
//change the flag IsHidden
|
||||
pHiddenPageRecord->IsHidden = TRUE;
|
||||
return STATUS_SUCCESS;
|
||||
|
||||
Lable_Error:
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: ContextOriginalToHidden
|
||||
description: switch to hidden code,so that we can call our hidden functions
|
||||
|
||||
calls: KeAcquireSpinLock
|
||||
ContextVirtualToPhysical
|
||||
ContextPhysicalToVirtual
|
||||
__invlpg
|
||||
KeReleaseSpinLock
|
||||
_enable
|
||||
KeLowerIrql
|
||||
**********************************************************/
|
||||
NTSTATUS ContextHiddenToOriginal(PHIDDEN_PAGE_RECORD pHiddenPageRecord)
|
||||
{
|
||||
KIRQL EntryIrql;
|
||||
NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
||||
|
||||
//prevent mulit-thread change the page record count
|
||||
KeAcquireSpinLock(&pHiddenPageRecord->SpinLock, &EntryIrql);
|
||||
|
||||
//assert we have elements
|
||||
if (pHiddenPageRecord->Count == 0)
|
||||
goto Lable_Error;
|
||||
|
||||
//check the initialize state and current hidden state
|
||||
if (!g_IsHiddenOpInit || !pHiddenPageRecord->IsHidden)
|
||||
goto Lable_Error;
|
||||
|
||||
//restore all records and mark all the hidden physical memory as good
|
||||
PSPECIFIC_HIDDEN_PAGE_RECORD pCurrentRecord = NULL;
|
||||
|
||||
for (int i = 0; i < pHiddenPageRecord->Count; i++)
|
||||
{
|
||||
pCurrentRecord = &pHiddenPageRecord->Record[i];
|
||||
|
||||
//change all page mapping relations
|
||||
ContextVirtualToPhysical(&g_PhysicalOpCR3);
|
||||
pCurrentRecord->pPTE->PageFrameNumber = pCurrentRecord->OriginalPfn;
|
||||
ContextPhysicalToVirtual(&g_PhysicalOpCR3);
|
||||
|
||||
//invalid the TLB of current hidden address
|
||||
__invlpg(pCurrentRecord->pHiddenBase);
|
||||
}
|
||||
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
|
||||
//enable task switch interrupt(maskable)
|
||||
_enable();
|
||||
|
||||
//restore irql
|
||||
MyPrint(_TitleAndFunc"pHiddenPageRecord->IsIrqlChanged:%16IX\n", pHiddenPageRecord->IsIrqlChanged);
|
||||
if (pHiddenPageRecord->IsIrqlChanged)
|
||||
{
|
||||
KeLowerIrql(pHiddenPageRecord->OriginalIrql);
|
||||
|
||||
//restore the flag IsIrqlChanged
|
||||
pHiddenPageRecord->IsIrqlChanged = FALSE;
|
||||
}
|
||||
|
||||
//change the flag IsHidden
|
||||
pHiddenPageRecord->IsHidden = FALSE;
|
||||
return STATUS_SUCCESS;
|
||||
|
||||
Lable_Error:
|
||||
KeReleaseSpinLock(&pHiddenPageRecord->SpinLock, EntryIrql);
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: GetPagesCountByLength
|
||||
description: get pages count by length
|
||||
**********************************************************/
|
||||
ULONG64 GetPagesCountByLength(ULONG64 Length)
|
||||
{
|
||||
if ((Length & 0xFFF) == 0)
|
||||
return (Length >> 12);
|
||||
else
|
||||
return (Length >> 12) + 1;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: AddHiddenSection
|
||||
description: add hidden address by the offered section name
|
||||
if all the calls of AddHiddenPageRecord are successful,return STATUS_SUCCESS
|
||||
calls: GetSegmentStartAddress
|
||||
GetSegmentLength
|
||||
GetPagesCountByLength
|
||||
AddHiddenPageRecord
|
||||
**********************************************************/
|
||||
NTSTATUS AddHiddenSection(ULONG64 SystemCR3, PDRIVER_OBJECT pDriverObj, PCHAR pSegName, PHIDDEN_PAGE_RECORD pHiddenPageRecord)
|
||||
{
|
||||
//analyse number of pages of the section
|
||||
PVOID pSectionStart = (PVOID)GetSegmentStartAddress(pDriverObj, pSegName);
|
||||
ULONG64 SectionLength = GetSegmentLength(pDriverObj, pSegName);
|
||||
ULONG64 PagesCount = GetPagesCountByLength(SectionLength);
|
||||
PVOID pCurrentPage = NULL;
|
||||
NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
||||
|
||||
MyPrint(_TitleAndFunc"pSectionStart:%16IX\n", pSectionStart);
|
||||
MyPrint(_TitleAndFunc"SectionLength:%16IX\n", SectionLength);
|
||||
MyPrint(_TitleAndFunc"PagesCount:%16IX\n", PagesCount);
|
||||
|
||||
//call AddHiddenPageRecord to record the hidden info
|
||||
for (int i = 0; i < PagesCount; i++)
|
||||
{
|
||||
pCurrentPage = (PVOID)((ULONG64)pSectionStart + i*PAGE_SIZE);
|
||||
Status = AddHiddenPageRecord(SystemCR3, pCurrentPage, pHiddenPageRecord);
|
||||
|
||||
//make sure all the records are successful
|
||||
if (!NT_SUCCESS(Status))
|
||||
return Status;
|
||||
}
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
#pragma once
|
||||
#include "Head.h"
|
||||
|
||||
#pragma code_seg(SECTION_NAME_HIDDEN)
|
||||
|
||||
NTSTATUS HiddenFunctionA(PHIDDEN_PAGE_RECORD pHiddenPageRecord)
|
||||
{
|
||||
NTSTATUS Status = STATUS_UNSUCCESSFUL;
|
||||
|
||||
Status = ApiTransfer_SimulateApi(pHiddenPageRecord, 0xFAFAFAFAFAFAFAFA);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
#pragma code_seg()
|
|
@ -0,0 +1,32 @@
|
|||
;
|
||||
; KernelHiddenExcute.inf
|
||||
;
|
||||
|
||||
[Version]
|
||||
Signature="$WINDOWS NT$"
|
||||
Class=System
|
||||
ClassGuid={4d36e97d-e325-11ce-bfc1-08002be10318}
|
||||
Provider=XYLab
|
||||
DriverVer=
|
||||
CatalogFile=KernelHiddenExcute.inf.cat
|
||||
|
||||
[DestinationDirs]
|
||||
DefaultDestDir = 12
|
||||
|
||||
|
||||
[SourceDisksNames]
|
||||
1 = %DiskName%,,,""
|
||||
|
||||
[SourceDisksFiles]
|
||||
|
||||
|
||||
[Manufacturer]
|
||||
%ManufacturerName%=Standard,NT$ARCH$
|
||||
|
||||
[Standard.NT$ARCH$]
|
||||
|
||||
|
||||
[Strings]
|
||||
ManufacturerName="XYLab"
|
||||
ClassName=""
|
||||
DiskName="KernelHiddenExcute Source Disk"
|
|
@ -0,0 +1,173 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup Label="ProjectConfigurations">
|
||||
<ProjectConfiguration Include="Debug|Win32">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|Win32">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|x64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|x64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|ARM">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>ARM</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|ARM">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>ARM</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|ARM64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>ARM64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|ARM64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>ARM64</Platform>
|
||||
</ProjectConfiguration>
|
||||
</ItemGroup>
|
||||
<PropertyGroup Label="Globals">
|
||||
<ProjectGuid>{B6DD98D0-0343-41DD-94FC-542035EE9B88}</ProjectGuid>
|
||||
<TemplateGuid>{dd38f7fc-d7bd-488b-9242-7d8754cde80d}</TemplateGuid>
|
||||
<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
|
||||
<MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform Condition="'$(Platform)' == ''">Win32</Platform>
|
||||
<RootNamespace>KernelHiddenExcute</RootNamespace>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
|
||||
<TargetVersion>Windows10</TargetVersion>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
|
||||
<TargetVersion>Windows10</TargetVersion>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
|
||||
<TargetVersion>Windows7</TargetVersion>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
<DriverTargetPlatform>Desktop</DriverTargetPlatform>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
|
||||
<TargetVersion>Windows7</TargetVersion>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
<DriverTargetPlatform>Desktop</DriverTargetPlatform>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'" Label="Configuration">
|
||||
<TargetVersion>Windows10</TargetVersion>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'" Label="Configuration">
|
||||
<TargetVersion>Windows10</TargetVersion>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
|
||||
<TargetVersion>Windows10</TargetVersion>
|
||||
<UseDebugLibraries>true</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">
|
||||
<TargetVersion>Windows10</TargetVersion>
|
||||
<UseDebugLibraries>false</UseDebugLibraries>
|
||||
<PlatformToolset>WindowsKernelModeDriver10.0</PlatformToolset>
|
||||
<ConfigurationType>Driver</ConfigurationType>
|
||||
<DriverType>WDM</DriverType>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
|
||||
<ImportGroup Label="ExtensionSettings">
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="PropertySheets">
|
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
||||
</ImportGroup>
|
||||
<PropertyGroup Label="UserMacros" />
|
||||
<PropertyGroup />
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
<EnableInf2cat>false</EnableInf2cat>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
<EnableInf2cat>false</EnableInf2cat>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
</PropertyGroup>
|
||||
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
|
||||
<DebuggerFlavor>DbgengKernelDebugger</DebuggerFlavor>
|
||||
</PropertyGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
</ClCompile>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
|
||||
<ClCompile>
|
||||
<WarningLevel>Level3</WarningLevel>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<OptimizeReferences>false</OptimizeReferences>
|
||||
</Link>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemGroup>
|
||||
<Inf Include="KernelHiddenExcute.inf" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<FilesToPackage Include="$(TargetPath)" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="main.c" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="Head.h" />
|
||||
<ClInclude Include="HiddenCallApiTransfer.h" />
|
||||
<ClInclude Include="HiddenExecute.h" />
|
||||
<ClInclude Include="HiddenFunctions.h" />
|
||||
<ClInclude Include="MyDebugPrint.h" />
|
||||
<ClInclude Include="PhysicalMemoryOperation.h" />
|
||||
<ClInclude Include="SectionOperation.h" />
|
||||
</ItemGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
|
||||
<ImportGroup Label="ExtensionTargets">
|
||||
</ImportGroup>
|
||||
</Project>
|
|
@ -0,0 +1,54 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup>
|
||||
<Filter Include="Source Files">
|
||||
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
|
||||
<Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
|
||||
</Filter>
|
||||
<Filter Include="Header Files">
|
||||
<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
|
||||
<Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
|
||||
</Filter>
|
||||
<Filter Include="Resource Files">
|
||||
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
|
||||
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
|
||||
</Filter>
|
||||
<Filter Include="Driver Files">
|
||||
<UniqueIdentifier>{8E41214B-6785-4CFE-B992-037D68949A14}</UniqueIdentifier>
|
||||
<Extensions>inf;inv;inx;mof;mc;</Extensions>
|
||||
</Filter>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<Inf Include="KernelHiddenExcute.inf">
|
||||
<Filter>Driver Files</Filter>
|
||||
</Inf>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="main.c">
|
||||
<Filter>Source Files</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClInclude Include="Head.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="MyDebugPrint.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="PhysicalMemoryOperation.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="HiddenExecute.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="HiddenCallApiTransfer.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="SectionOperation.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
<ClInclude Include="HiddenFunctions.h">
|
||||
<Filter>Header Files</Filter>
|
||||
</ClInclude>
|
||||
</ItemGroup>
|
||||
</Project>
|
|
@ -0,0 +1,21 @@
|
|||
#pragma once
|
||||
|
||||
#include "Head.h"
|
||||
|
||||
|
||||
|
||||
#define _DBG_PRINT
|
||||
#define PRINT_NAME "XYLab"
|
||||
|
||||
|
||||
#define _Title "["##PRINT_NAME##"] "
|
||||
#define _Func "["##__FUNCTION__##"] "
|
||||
#define _TitleAndFunc "["##PRINT_NAME##"] "##"["##__FUNCTION__##"] "
|
||||
|
||||
#ifdef _DBG_PRINT
|
||||
//#define MyPrint(_x_) DbgPrint _x_
|
||||
#define MyPrint(...) DbgPrint(__VA_ARGS__)
|
||||
#else
|
||||
//#define MyPrint(_x_)
|
||||
#define MyPrint(...)
|
||||
#endif
|
|
@ -0,0 +1,527 @@
|
|||
#pragma once
|
||||
#include "Head.h"
|
||||
|
||||
BOOL g_IsPhysicalOpInit = FALSE;
|
||||
HANDLE g_SectionHandle = NULL;
|
||||
|
||||
#define PAGE_TABLE_SIZE 0x1000
|
||||
#define CR3_FLAG_ALL_BITS 0xFFF0000000000FFF
|
||||
#define PAGE_TABLE_PML4T_FLAG 0x867 //1000 0110 0111
|
||||
#define PAGE_TABLE_PDPT_FLAG 0x9E7 //1001 1110 0111
|
||||
#define VA_SYSTEM_START 0xFFFF080000000000 //IA64
|
||||
#define MAX_ENTRY_COUNT 512
|
||||
#define ENTRY_SIZE sizeof(ULONG64)
|
||||
|
||||
typedef struct _PHYSICAL_OP_CR3
|
||||
{
|
||||
PVOID pAllocVA_PML4T;
|
||||
PVOID pAllocPA_PML4T;
|
||||
|
||||
PVOID pAllocVA_PDPT;
|
||||
PVOID pAllocPA_PDPT;
|
||||
|
||||
PVOID pSystemPML4TMap;
|
||||
|
||||
ULONG64 CR3Generated;
|
||||
ULONG64 CR3System;
|
||||
|
||||
ULONG64 CR3BeforeSwitch;
|
||||
BOOL IsContextSwitched;
|
||||
BOOL IsIrqlChanged;
|
||||
KIRQL OriginalIrql;//available if the IsIrqlChanged is true
|
||||
}PHYSICAL_OP_CR3, *PPHYSICAL_OP_CR3;
|
||||
|
||||
|
||||
|
||||
typedef struct _MMPDPTE
|
||||
{
|
||||
struct /* bitfield */
|
||||
{
|
||||
/* 0x0000 */ unsigned __int64 Valid : 1; /* bit position: 0 */
|
||||
/* 0x0000 */ unsigned __int64 Dirty1 : 1; /* bit position: 1 */
|
||||
/* 0x0000 */ unsigned __int64 Owner : 1; /* bit position: 2 */
|
||||
/* 0x0000 */ unsigned __int64 WriteThrough : 1; /* bit position: 3 */
|
||||
/* 0x0000 */ unsigned __int64 CacheDisable : 1; /* bit position: 4 */
|
||||
/* 0x0000 */ unsigned __int64 Accessed : 1; /* bit position: 5 */
|
||||
/* 0x0000 */ unsigned __int64 Dirty : 1; /* bit position: 6 */
|
||||
/* 0x0000 */ unsigned __int64 LargePage : 1; /* bit position: 7 */
|
||||
/* 0x0000 */ unsigned __int64 Global : 1; /* bit position: 8 */
|
||||
/* 0x0000 */ unsigned __int64 CopyOnWrite : 1; /* bit position: 9 */
|
||||
/* 0x0000 */ unsigned __int64 Unused : 1; /* bit position: 10 */
|
||||
/* 0x0000 */ unsigned __int64 Write : 1; /* bit position: 11 */
|
||||
/* 0x0000 */ unsigned __int64 reserved0 : 18; /* bit position: 12 */
|
||||
/* 0x0000 */ unsigned __int64 PageFrameNumber : 18; /* bit position: 30 */
|
||||
/* 0x0000 */ unsigned __int64 reserved1 : 4; /* bit position: 48 */
|
||||
/* 0x0000 */ unsigned __int64 SoftwareWsIndex : 11; /* bit position: 52 */
|
||||
/* 0x0000 */ unsigned __int64 NoExecute : 1; /* bit position: 63 */
|
||||
}; /* bitfield */
|
||||
} MMPDPTE, *PMMPDPTE; /* size: 0x0008 */
|
||||
|
||||
typedef struct _MMPDE
|
||||
{
|
||||
struct /* bitfield */
|
||||
{
|
||||
/* 0x0000 */ unsigned __int64 Valid : 1; /* bit position: 0 */
|
||||
/* 0x0000 */ unsigned __int64 Dirty1 : 1; /* bit position: 1 */
|
||||
/* 0x0000 */ unsigned __int64 Owner : 1; /* bit position: 2 */
|
||||
/* 0x0000 */ unsigned __int64 WriteThrough : 1; /* bit position: 3 */
|
||||
/* 0x0000 */ unsigned __int64 CacheDisable : 1; /* bit position: 4 */
|
||||
/* 0x0000 */ unsigned __int64 Accessed : 1; /* bit position: 5 */
|
||||
/* 0x0000 */ unsigned __int64 Dirty : 1; /* bit position: 6 */
|
||||
/* 0x0000 */ unsigned __int64 LargePage : 1; /* bit position: 7 */
|
||||
/* 0x0000 */ unsigned __int64 Global : 1; /* bit position: 8 */
|
||||
/* 0x0000 */ unsigned __int64 CopyOnWrite : 1; /* bit position: 9 */
|
||||
/* 0x0000 */ unsigned __int64 Unused : 1; /* bit position: 10 */
|
||||
/* 0x0000 */ unsigned __int64 Write : 1; /* bit position: 11 */
|
||||
/* 0x0000 */ unsigned __int64 reserved0 : 9; /* bit position: 12 */
|
||||
/* 0x0000 */ unsigned __int64 PageFrameNumber : 27; /* bit position: 21 */
|
||||
/* 0x0000 */ unsigned __int64 reserved1 : 4; /* bit position: 48 */
|
||||
/* 0x0000 */ unsigned __int64 SoftwareWsIndex : 11; /* bit position: 52 */
|
||||
/* 0x0000 */ unsigned __int64 NoExecute : 1; /* bit position: 63 */
|
||||
}; /* bitfield */
|
||||
} MMPDE, *PMMPDE; /* size: 0x0008 */
|
||||
|
||||
typedef struct _MMVA
|
||||
{
|
||||
struct /* bitfield */
|
||||
{
|
||||
/* 0x0000 */ unsigned __int64 Offset : 12;
|
||||
/* 0x0000 */ unsigned __int64 PT : 9;
|
||||
/* 0x0000 */ unsigned __int64 PDT : 9;
|
||||
/* 0x0000 */ unsigned __int64 PDPT : 9;
|
||||
/* 0x0000 */ unsigned __int64 PML4T : 9;
|
||||
/* 0x0000 */ unsigned __int64 Partition : 16; //User:0x0000 System:0xFFFF
|
||||
}; /* bitfield */
|
||||
} MMVA, *PMMVA; /* size: 0x0008 */
|
||||
|
||||
typedef struct _MMVA_PDPTE_LARGE
|
||||
{
|
||||
struct /* bitfield */
|
||||
{
|
||||
/* 0x0000 */ unsigned __int64 Offset : 30;
|
||||
/* 0x0000 */ unsigned __int64 PDPT : 9;
|
||||
/* 0x0000 */ unsigned __int64 PML4T : 9;
|
||||
/* 0x0000 */ unsigned __int64 Partition : 16; //User:0x0000 System:0xFFFF
|
||||
}; /* bitfield */
|
||||
} MMVA_PDPTE_LARGE, *PMMVA_PDPTE_LARGE; /* size: 0x0008 */
|
||||
|
||||
typedef struct _MMVA_PDE_LARGE
|
||||
{
|
||||
struct /* bitfield */
|
||||
{
|
||||
/* 0x0000 */ unsigned __int64 Offset : 21;
|
||||
/* 0x0000 */ unsigned __int64 PDT : 9;
|
||||
/* 0x0000 */ unsigned __int64 PDPT : 9;
|
||||
/* 0x0000 */ unsigned __int64 PML4T : 9;
|
||||
/* 0x0000 */ unsigned __int64 Partition : 16; //User:0x0000 System:0xFFFF
|
||||
}; /* bitfield */
|
||||
} MMVA_PDE_LARGE, *PMMVA_PDE_LARGE; /* size: 0x0008 */
|
||||
|
||||
/*********************************************************
|
||||
function: OpenPhysicalMemory
|
||||
pMapPhysicalMemoryPre
|
||||
MapPhysicalMemory
|
||||
UnmapPhysicalMemory
|
||||
description: use map view of section to map physical address to virtual address
|
||||
**********************************************************/
|
||||
HANDLE OpenPhysicalMemory()
|
||||
{
|
||||
UNICODE_STRING physmemString;
|
||||
OBJECT_ATTRIBUTES attributes;
|
||||
WCHAR physmemName[] = L"\\device\\physicalmemory";
|
||||
NTSTATUS status;
|
||||
HANDLE physmem;
|
||||
RtlInitUnicodeString(&physmemString, physmemName);
|
||||
InitializeObjectAttributes(&attributes, &physmemString, OBJ_CASE_INSENSITIVE, NULL, NULL);
|
||||
status = ZwOpenSection(&physmem, SECTION_ALL_ACCESS, &attributes);
|
||||
if (!NT_SUCCESS(status))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
return physmem;
|
||||
}
|
||||
BOOLEAN pMapPhysicalMemoryPre(HANDLE hMemory, PDWORD64 pDwAddress, PSIZE_T pSize, PDWORD64 pDwVirtualAddress)
|
||||
{
|
||||
NTSTATUS ntStatus;
|
||||
|
||||
LARGE_INTEGER viewBase;
|
||||
*pDwVirtualAddress = 0;
|
||||
viewBase.QuadPart = *pDwAddress;
|
||||
ntStatus = ZwMapViewOfSection(hMemory, (HANDLE)-1, (void**)pDwVirtualAddress, 0L, *pSize, &viewBase, pSize, ViewShare, 0, PAGE_READWRITE | PAGE_NOCACHE);
|
||||
if (!NT_SUCCESS(ntStatus))
|
||||
return FALSE;
|
||||
//*pDwAddress = viewBase.QuadPart;
|
||||
return TRUE;
|
||||
}
|
||||
PVOID MapPhysicalMemory(PVOID PA, SIZE_T Size)
|
||||
{
|
||||
ULONGLONG DwAddress = (ULONG64)PA;
|
||||
ULONGLONG DwVirtualAddress = 0;
|
||||
BOOLEAN status = pMapPhysicalMemoryPre(g_SectionHandle, &DwAddress, &Size, &DwVirtualAddress);
|
||||
return (status == TRUE) ? (PVOID)DwVirtualAddress : NULL;
|
||||
}
|
||||
BOOLEAN UnmapPhysicalMemory(PVOID VA)
|
||||
{
|
||||
if (!ZwUnmapViewOfSection((HANDLE)-1, VA))
|
||||
return TRUE;
|
||||
else
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: GetCR3Flag
|
||||
description: get cr3 flag, only save the flag bits
|
||||
**********************************************************/
|
||||
ULONG64 GetCR3Flag(ULONG64 CR3)
|
||||
{
|
||||
return (CR3 & CR3_FLAG_ALL_BITS);
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: ClearCR3Flag
|
||||
description: clear cr3 flag, only clear the flag bits
|
||||
**********************************************************/
|
||||
ULONG64 ClearCR3Flag(ULONG64 CR3)
|
||||
{
|
||||
return (CR3 & ~CR3_FLAG_ALL_BITS);
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: pPrintPhysicalOpStructure
|
||||
description: print the structure elements
|
||||
**********************************************************/
|
||||
VOID pPrintPhysicalOpStructure(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
MyPrint(_TitleAndFunc"[PrintStart]\n");
|
||||
|
||||
MyPrint(_TitleAndFunc"pPhysicalOpCR3->pAllocVA_PML4T:%16IX\n", pPhysicalOpCR3->pAllocVA_PML4T);
|
||||
MyPrint(_TitleAndFunc"pPhysicalOpCR3->pAllocPA_PML4T:%16IX\n", pPhysicalOpCR3->pAllocPA_PML4T);
|
||||
|
||||
MyPrint(_TitleAndFunc"pPhysicalOpCR3->pAllocVA_PDPT:%16IX\n", pPhysicalOpCR3->pAllocVA_PDPT);
|
||||
MyPrint(_TitleAndFunc"pPhysicalOpCR3->pAllocPA_PDPT:%16IX\n", pPhysicalOpCR3->pAllocPA_PDPT);
|
||||
|
||||
MyPrint(_TitleAndFunc"pPhysicalOpCR3->pSystemPML4TMap:%16IX\n", pPhysicalOpCR3->pSystemPML4TMap);
|
||||
|
||||
MyPrint(_TitleAndFunc"pPhysicalOpCR3->CR3Generated:%16IX\n", pPhysicalOpCR3->CR3Generated);
|
||||
|
||||
MyPrint(_TitleAndFunc"[PrintEnd]\n");
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: pFreePhysicalOpPageTableMemory
|
||||
description: to free the allocated memory (PML4T and PDPT page table) with null pointer check
|
||||
**********************************************************/
|
||||
NTSTATUS pFreePhysicalOpPageTableMemory(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
if (pPhysicalOpCR3->pAllocVA_PML4T != NULL)
|
||||
{
|
||||
MmFreeNonCachedMemory(pPhysicalOpCR3->pAllocVA_PML4T, PAGE_TABLE_SIZE);
|
||||
pPhysicalOpCR3->pAllocVA_PML4T = NULL;
|
||||
pPhysicalOpCR3->pAllocPA_PML4T = NULL;
|
||||
}
|
||||
|
||||
if (pPhysicalOpCR3->pAllocVA_PDPT != NULL)
|
||||
{
|
||||
MmFreeNonCachedMemory(pPhysicalOpCR3->pAllocVA_PDPT, PAGE_TABLE_SIZE);
|
||||
pPhysicalOpCR3->pAllocVA_PDPT = NULL;
|
||||
pPhysicalOpCR3->pAllocPA_PDPT = NULL;
|
||||
}
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
/*********************************************************
|
||||
function: pAllocPhysicalOpPageTableMemory
|
||||
description: to allocate memory (PML4T and PDPT page table)
|
||||
if the allocate procduce failed,it can free all the allocated pages
|
||||
calls: MmAllocateNonCachedMemory
|
||||
MmGetPhysicalAddress
|
||||
pFreePhysicalOpPageTableMemory
|
||||
**********************************************************/
|
||||
NTSTATUS pAllocPhysicalOpPageTableMemory(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
//PML4T
|
||||
pPhysicalOpCR3->pAllocVA_PML4T = MmAllocateNonCachedMemory(PAGE_TABLE_SIZE);
|
||||
//check allocate state
|
||||
if (pPhysicalOpCR3->pAllocVA_PML4T == NULL)
|
||||
goto Lable_Error;
|
||||
pPhysicalOpCR3->pAllocPA_PML4T = (PVOID)MmGetPhysicalAddress(pPhysicalOpCR3->pAllocVA_PML4T).QuadPart;
|
||||
|
||||
|
||||
//PDPT
|
||||
pPhysicalOpCR3->pAllocVA_PDPT = MmAllocateNonCachedMemory(PAGE_TABLE_SIZE);
|
||||
//check allocate state
|
||||
if (pPhysicalOpCR3->pAllocVA_PDPT == NULL)
|
||||
goto Lable_Error;
|
||||
pPhysicalOpCR3->pAllocPA_PDPT = (PVOID)MmGetPhysicalAddress(pPhysicalOpCR3->pAllocVA_PDPT).QuadPart;
|
||||
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
Lable_Error:
|
||||
//free allocated memory
|
||||
pFreePhysicalOpPageTableMemory(pPhysicalOpCR3);
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: pMapPML4T
|
||||
description: map the system cr3(pml4t) to virtual address
|
||||
calls: ClearCR3Flag
|
||||
OpenPhysicalMemory
|
||||
MapPhysicalMemory
|
||||
**********************************************************/
|
||||
NTSTATUS pMapSystemPML4T(ULONG64 SystemCR3, PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
ULONG64 SystemCR3NonFlag = ClearCR3Flag(SystemCR3);
|
||||
PVOID pSystemPML4T = (PVOID)SystemCR3NonFlag;
|
||||
|
||||
if (g_SectionHandle == NULL)
|
||||
g_SectionHandle = OpenPhysicalMemory();
|
||||
|
||||
pPhysicalOpCR3->pSystemPML4TMap = MapPhysicalMemory(pSystemPML4T, PAGE_TABLE_SIZE);
|
||||
|
||||
return pPhysicalOpCR3->pSystemPML4TMap == NULL ? STATUS_UNSUCCESSFUL : STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: pUnmapSystemPML4T
|
||||
description: unmap the system cr3(pml4t)
|
||||
calls: OpenPhysicalMemory
|
||||
UnmapPhysicalMemory
|
||||
**********************************************************/
|
||||
NTSTATUS pUnmapSystemPML4T(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
if (g_SectionHandle == NULL)
|
||||
g_SectionHandle = OpenPhysicalMemory();
|
||||
|
||||
BOOL State = UnmapPhysicalMemory(pPhysicalOpCR3->pSystemPML4TMap);
|
||||
if (State)
|
||||
pPhysicalOpCR3->pSystemPML4TMap = NULL;
|
||||
|
||||
if (g_SectionHandle != NULL)
|
||||
ZwClose(g_SectionHandle);
|
||||
|
||||
return !State ? STATUS_UNSUCCESSFUL : STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: pFillGeneratedPML4TandPDPT
|
||||
description: fill the pml4t table,genarate the first large page entry and copy the system space map
|
||||
fill the pdpt table point to the physical address,every PDPTE point to a 1G-byte page(512G in total)
|
||||
calls: RtlCopyMemory
|
||||
**********************************************************/
|
||||
NTSTATUS pFillGeneratedPML4TandPDPT(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
//copy the system space map
|
||||
PVOID pSystemStart = (PVOID)VA_SYSTEM_START;
|
||||
ULONG64 SystemPML4TStart = ((PMMVA)&pSystemStart)->PML4T;
|
||||
|
||||
MyPrint(_TitleAndFunc"SystemPML4TStart:%16X\n", SystemPML4TStart);
|
||||
RtlCopyMemory((PVOID)((ULONG64)pPhysicalOpCR3->pAllocVA_PML4T + SystemPML4TStart*ENTRY_SIZE),
|
||||
(PVOID)((ULONG64)pPhysicalOpCR3->pSystemPML4TMap + SystemPML4TStart*ENTRY_SIZE),
|
||||
(MAX_ENTRY_COUNT - SystemPML4TStart)*ENTRY_SIZE
|
||||
);
|
||||
|
||||
//make the first address point to my PDPT table
|
||||
*(PULONG64)pPhysicalOpCR3->pAllocVA_PML4T = (ULONG64)pPhysicalOpCR3->pAllocPA_PDPT | PAGE_TABLE_PML4T_FLAG;
|
||||
|
||||
//fill the PDPT page table
|
||||
//add flag
|
||||
ULONG64 CurrentPDPTEntry = PAGE_TABLE_PDPT_FLAG;
|
||||
for (int i = 0; i < MAX_ENTRY_COUNT; i++)
|
||||
{
|
||||
//change pfn
|
||||
((PMMPDPTE)&CurrentPDPTEntry)->PageFrameNumber = i;
|
||||
//
|
||||
*(PULONG64)((ULONG64)pPhysicalOpCR3->pAllocVA_PDPT + i*ENTRY_SIZE) = CurrentPDPTEntry;
|
||||
}
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
/*********************************************************
|
||||
function: CreatePhysicalOpCR3BySystemCR3
|
||||
description: to initialize the physical memory operation structure
|
||||
calls: pAllocPhysicalOpPageTableMemory
|
||||
pMapSystemPML4T
|
||||
pFillGeneratedPML4TandPDPT
|
||||
pMapPML4T
|
||||
GetCR3Flag
|
||||
**********************************************************/
|
||||
NTSTATUS CreatePhysicalOpCR3BySystemCR3(ULONG64 SystemCR3, PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
//check the init state
|
||||
if (g_IsPhysicalOpInit)
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
|
||||
//allocate page table memory and fill the structure
|
||||
if (!NT_SUCCESS(pAllocPhysicalOpPageTableMemory(pPhysicalOpCR3)))
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
//map pSystemPML4T to virtual address and fill the structure
|
||||
if (!NT_SUCCESS(pMapSystemPML4T(SystemCR3, pPhysicalOpCR3)))
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
//fill PML4T and PDPT page table
|
||||
if (!NT_SUCCESS(pFillGeneratedPML4TandPDPT(pPhysicalOpCR3)))
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
//generate new cr3 for reading the physical memory and add cr3 flag
|
||||
ULONG64 SystemCR3Flag = GetCR3Flag(SystemCR3);
|
||||
pPhysicalOpCR3->CR3Generated = (ULONG64)pPhysicalOpCR3->pAllocPA_PML4T | SystemCR3Flag;
|
||||
|
||||
//fill the structure part:CR3System
|
||||
pPhysicalOpCR3->CR3System = SystemCR3;
|
||||
|
||||
//print structure
|
||||
pPrintPhysicalOpStructure(pPhysicalOpCR3);
|
||||
|
||||
g_IsPhysicalOpInit = TRUE;
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
/*********************************************************
|
||||
function: FreePhysicalOpCR3
|
||||
description: to uninitialize the physical memory operation structure
|
||||
calls: pUnmapSystemPML4T
|
||||
pFreePhysicalOpPageTableMemory
|
||||
RtlZeroMemory
|
||||
**********************************************************/
|
||||
NTSTATUS FreePhysicalOpCR3(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
//check the init state
|
||||
if (!g_IsPhysicalOpInit)
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
//unmap pSystemPML4T
|
||||
pUnmapSystemPML4T(pPhysicalOpCR3);
|
||||
|
||||
//free allocated memory
|
||||
pFreePhysicalOpPageTableMemory(pPhysicalOpCR3);
|
||||
|
||||
//clear generated cr3 and recorded system cr3
|
||||
pPhysicalOpCR3->CR3Generated = 0;
|
||||
pPhysicalOpCR3->CR3System = 0;
|
||||
|
||||
//print structure
|
||||
pPrintPhysicalOpStructure(pPhysicalOpCR3);
|
||||
|
||||
// set the structure to zero,avoid some bugs
|
||||
RtlZeroMemory((PVOID)pPhysicalOpCR3, sizeof(PHYSICAL_OP_CR3));
|
||||
|
||||
|
||||
g_IsPhysicalOpInit = FALSE;
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: ContextVirtualToPhysical
|
||||
description: raise irql and switch to generated cr3
|
||||
**********************************************************/
|
||||
NTSTATUS ContextVirtualToPhysical(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
//check the initialize state and current context
|
||||
if (!g_IsPhysicalOpInit || pPhysicalOpCR3->IsContextSwitched)
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
//assert irql >= dispatch level
|
||||
pPhysicalOpCR3->OriginalIrql = KeGetCurrentIrql();
|
||||
if (pPhysicalOpCR3->OriginalIrql < DISPATCH_LEVEL)
|
||||
{
|
||||
pPhysicalOpCR3->IsIrqlChanged = TRUE;
|
||||
KeRaiseIrqlToDpcLevel();
|
||||
}
|
||||
|
||||
|
||||
//disable task switch interrupt(maskable)
|
||||
_disable();
|
||||
|
||||
|
||||
//record and switch cr3
|
||||
pPhysicalOpCR3->CR3BeforeSwitch = __readcr3();
|
||||
__writecr3(pPhysicalOpCR3->CR3Generated);
|
||||
|
||||
//change the flag IsContextSwitched
|
||||
pPhysicalOpCR3->IsContextSwitched = TRUE;
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: ContextPhysicalToVirtual
|
||||
description: lower irql and switch to system cr3
|
||||
**********************************************************/
|
||||
NTSTATUS ContextPhysicalToVirtual(PPHYSICAL_OP_CR3 pPhysicalOpCR3)
|
||||
{
|
||||
//check the initialize state and current context
|
||||
if (!g_IsPhysicalOpInit || !pPhysicalOpCR3->IsContextSwitched)
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
|
||||
//restore cr3
|
||||
__writecr3(pPhysicalOpCR3->CR3BeforeSwitch);
|
||||
|
||||
//enable task switch interrupt(maskable)
|
||||
_enable();
|
||||
|
||||
//restore irql
|
||||
if (pPhysicalOpCR3->IsIrqlChanged)
|
||||
{
|
||||
KeLowerIrql(pPhysicalOpCR3->OriginalIrql);
|
||||
|
||||
//restore the flag IsIrqlChanged
|
||||
pPhysicalOpCR3->IsIrqlChanged = FALSE;
|
||||
}
|
||||
|
||||
//change the flag IsContextSwitched
|
||||
pPhysicalOpCR3->IsContextSwitched = FALSE;
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
/*********************************************************
|
||||
function: GetCR3ByEprocess
|
||||
description: get cr3 by eprocess
|
||||
**********************************************************/
|
||||
ULONG64 GetCR3ByEprocess(PEPROCESS pEProc)
|
||||
{
|
||||
if (pEProc == NULL)
|
||||
return 0;
|
||||
|
||||
//get dirbase
|
||||
ULONG64 DirBase = *(PULONG64)((ULONG64)pEProc + 0x028);
|
||||
return DirBase;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: GetEProcess
|
||||
description: get eprocess by pid
|
||||
**********************************************************/
|
||||
PEPROCESS GetEProcess(ULONG64 PID)
|
||||
{
|
||||
PEPROCESS pEProc = NULL;
|
||||
|
||||
//check pid
|
||||
if (PID == 0)
|
||||
return 0;
|
||||
|
||||
//get eprocess
|
||||
if (!NT_SUCCESS(PsLookupProcessByProcessId((HANDLE)PID, (PEPROCESS*)&pEProc)))
|
||||
return 0;
|
||||
|
||||
//dereference
|
||||
if (pEProc != NULL)
|
||||
ObDereferenceObject((PVOID)pEProc);
|
||||
|
||||
return pEProc;
|
||||
}
|
||||
|
||||
/*********************************************************
|
||||
function: GetCR3ByPID
|
||||
description: get cr3 by pid
|
||||
calls: GetEProcess
|
||||
GetCR3ByEprocess
|
||||
**********************************************************/
|
||||
ULONG64 GetCR3ByPID(ULONG64 PID)
|
||||
{
|
||||
return GetCR3ByEprocess(GetEProcess(PID));
|
||||
}
|
|
@ -0,0 +1,119 @@
|
|||
#pragma once
|
||||
#include "Head.h"
|
||||
|
||||
typedef struct _LDR_DATA_TABLE_ENTRY64
|
||||
{
|
||||
LIST_ENTRY64 InLoadOrderLinks;
|
||||
LIST_ENTRY64 InMemoryOrderLinks;
|
||||
LIST_ENTRY64 InInitializationOrderLinks;
|
||||
PVOID DllBase;
|
||||
PVOID EntryPoint;
|
||||
ULONG SizeOfImage;
|
||||
UNICODE_STRING FullDllName;
|
||||
UNICODE_STRING BaseDllName;
|
||||
ULONG Flags;
|
||||
USHORT LoadCount;
|
||||
USHORT TlsIndex;
|
||||
PVOID SectionPointer;
|
||||
ULONG CheckSum;
|
||||
PVOID LoadedImports;
|
||||
PVOID EntryPointActivationContext;
|
||||
PVOID PatchInformation;
|
||||
LIST_ENTRY64 ForwarderLinks;
|
||||
LIST_ENTRY64 ServiceTagLinks;
|
||||
LIST_ENTRY64 StaticLinks;
|
||||
PVOID ContextInformation;
|
||||
ULONG64 OriginalBase;
|
||||
LARGE_INTEGER LoadTime;
|
||||
} LDR_DATA_TABLE_ENTRY64, *PLDR_DATA_TABLE_ENTRY64;
|
||||
|
||||
PIMAGE_SECTION_HEADER GetSegmentHeadPointer(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
PLDR_DATA_TABLE_ENTRY64 entry = (PLDR_DATA_TABLE_ENTRY64)pDriverObj->DriverSection;
|
||||
PUCHAR pJumpDrvBase = (PUCHAR)entry->DllBase;
|
||||
PIMAGE_DOS_HEADER pDosHead;
|
||||
PIMAGE_NT_HEADERS pNtHead;
|
||||
PIMAGE_SECTION_HEADER pSecHead;
|
||||
BOOL bFinded = FALSE;
|
||||
|
||||
pDosHead = (PIMAGE_DOS_HEADER)pJumpDrvBase;
|
||||
if (pDosHead->e_magic != IMAGE_DOS_SIGNATURE)
|
||||
{
|
||||
MyPrint(("[" PRINT_NAME "] DosHead Error\n"));
|
||||
return 0;
|
||||
}
|
||||
pNtHead = (PIMAGE_NT_HEADERS)\
|
||||
((LONG_PTR)pDosHead + pDosHead->e_lfanew);
|
||||
if (pNtHead->Signature != IMAGE_NT_SIGNATURE)
|
||||
{
|
||||
MyPrint(("[" PRINT_NAME "] NtHead Error\n"));
|
||||
return 0;
|
||||
}
|
||||
pSecHead = IMAGE_FIRST_SECTION(pNtHead);
|
||||
for (int i = 0; i < pNtHead->FileHeader.NumberOfSections; i++)
|
||||
{
|
||||
if (strcmp((const char*)(pSecHead->Name), pSegName) == 0)
|
||||
{
|
||||
bFinded = TRUE;
|
||||
break;
|
||||
}
|
||||
pSecHead++;
|
||||
}
|
||||
if (bFinded == FALSE)
|
||||
{
|
||||
MyPrint(("[" PRINT_NAME "] SecHead Error\n"));
|
||||
return 0;
|
||||
}
|
||||
|
||||
return pSecHead;
|
||||
}
|
||||
|
||||
ULONG64 GetDriverBaseAddress(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
PLDR_DATA_TABLE_ENTRY64 entry = (PLDR_DATA_TABLE_ENTRY64)pDriverObj->DriverSection;
|
||||
PUCHAR pJumpDrvBase = (PUCHAR)entry->DllBase;
|
||||
return (ULONG64)pJumpDrvBase;
|
||||
}
|
||||
ULONG64 GetSegmentAddressPointer(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
PIMAGE_SECTION_HEADER pSecHead = GetSegmentHeadPointer(pDriverObj, pSegName);
|
||||
return (ULONG64)&(pSecHead->VirtualAddress);
|
||||
}
|
||||
ULONG64 GetSegmentLengthPointer(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
PIMAGE_SECTION_HEADER pSecHead = GetSegmentHeadPointer(pDriverObj, pSegName);
|
||||
return (ULONG64)&(pSecHead->Misc.VirtualSize);
|
||||
}
|
||||
ULONG64 GetSegmentRawDataAddressPointer(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
PIMAGE_SECTION_HEADER pSecHead = GetSegmentHeadPointer(pDriverObj, pSegName);
|
||||
return (ULONG64)&(pSecHead->PointerToRawData);
|
||||
}
|
||||
ULONG64 GetSegmentRawDataLengthPointer(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
PIMAGE_SECTION_HEADER pSecHead = GetSegmentHeadPointer(pDriverObj, pSegName);
|
||||
return (ULONG64)&(pSecHead->SizeOfRawData);
|
||||
}
|
||||
|
||||
ULONG64 GetSegmentStartAddress(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
ULONG64 pDriverBase = GetDriverBaseAddress(pDriverObj, pSegName);
|
||||
ULONG64 pSegmentAddress = GetSegmentAddressPointer(pDriverObj, pSegName);
|
||||
return pDriverBase + *(PULONG32)pSegmentAddress;
|
||||
}
|
||||
|
||||
ULONG64 GetSegmentEndAddress(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
ULONG64 pDriverBase = GetDriverBaseAddress(pDriverObj, pSegName);
|
||||
ULONG64 pSegmentAddress = GetSegmentAddressPointer(pDriverObj, pSegName);
|
||||
ULONG64 pSegmentLength = GetSegmentLengthPointer(pDriverObj, pSegName);
|
||||
return pDriverBase + *(PULONG32)pSegmentAddress + *(PULONG32)pSegmentLength;
|
||||
}
|
||||
|
||||
ULONG64 GetSegmentLength(PDRIVER_OBJECT pDriverObj, PCHAR pSegName)
|
||||
{
|
||||
ULONG64 pDriverBase = GetDriverBaseAddress(pDriverObj, pSegName);
|
||||
ULONG64 pSegmentAddress = GetSegmentAddressPointer(pDriverObj, pSegName);
|
||||
ULONG64 pSegmentLength = GetSegmentLengthPointer(pDriverObj, pSegName);
|
||||
return *(PULONG32)pSegmentLength;
|
||||
}
|
|
@ -0,0 +1,119 @@
|
|||
#include "Head.h"
|
||||
|
||||
NTSTATUS DispatchCreate(PDEVICE_OBJECT pDevObj, PIRP pIrp)
|
||||
{
|
||||
pIrp->IoStatus.Status = STATUS_SUCCESS;
|
||||
pIrp->IoStatus.Information = 0;
|
||||
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
NTSTATUS DispatchClose(PDEVICE_OBJECT pDevObj, PIRP pIrp)
|
||||
{
|
||||
pIrp->IoStatus.Status = STATUS_SUCCESS;
|
||||
pIrp->IoStatus.Information = 0;
|
||||
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
NTSTATUS DispatchIoctl(PDEVICE_OBJECT pDevObj, PIRP pIrp)
|
||||
{
|
||||
NTSTATUS status = STATUS_INVALID_DEVICE_REQUEST;
|
||||
PIO_STACK_LOCATION pIrpStack = IoGetCurrentIrpStackLocation(pIrp);
|
||||
ULONG uIoControlCode = pIrpStack->Parameters.DeviceIoControl.IoControlCode;
|
||||
PVOID pIoBuffer = pIrp->AssociatedIrp.SystemBuffer;
|
||||
ULONG uInSize = pIrpStack->Parameters.DeviceIoControl.InputBufferLength;
|
||||
ULONG uOutSize = pIrpStack->Parameters.DeviceIoControl.OutputBufferLength;
|
||||
switch (uIoControlCode)
|
||||
{
|
||||
case IOCTL_TEST:
|
||||
{
|
||||
DWORD dw;
|
||||
memcpy(&dw, pIoBuffer, sizeof(dw));
|
||||
dw++;
|
||||
memcpy(pIoBuffer, &dw, sizeof(dw));
|
||||
status = STATUS_SUCCESS;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (status == STATUS_SUCCESS)
|
||||
pIrp->IoStatus.Information = uOutSize;
|
||||
else
|
||||
pIrp->IoStatus.Information = 0;
|
||||
pIrp->IoStatus.Status = status;
|
||||
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
|
||||
return status;
|
||||
}
|
||||
|
||||
VOID DriverUnload(PDRIVER_OBJECT pDriverObj)
|
||||
{
|
||||
UNICODE_STRING strLink;
|
||||
//do sth...
|
||||
MyPrint(_TitleAndFunc"Exit\n");
|
||||
|
||||
RemoveAndRestoreAllHiddenPageRecord(g_pHiddenPageRecord);
|
||||
FreeHiddenPageRecordStructure(g_pHiddenPageRecord);
|
||||
|
||||
//delete device and symbolic link
|
||||
RtlInitUnicodeString(&strLink, LINK_NAME);
|
||||
IoDeleteSymbolicLink(&strLink);
|
||||
IoDeleteDevice(pDriverObj->DeviceObject);
|
||||
}
|
||||
VOID WriteEnable()
|
||||
{
|
||||
UINT64 cr0 = __readcr0();
|
||||
cr0 &= 0xfffffffffffeffff;
|
||||
__writecr0(cr0);
|
||||
_disable();
|
||||
}
|
||||
VOID WriteDisable()
|
||||
{
|
||||
UINT64 cr0 = __readcr0();
|
||||
cr0 |= 0x10000;
|
||||
_enable();
|
||||
__writecr0(cr0);
|
||||
}
|
||||
NTSTATUS DriverEntry(PDRIVER_OBJECT pDriverObj, PUNICODE_STRING pRegistryString)
|
||||
{
|
||||
NTSTATUS status = STATUS_SUCCESS;
|
||||
PDEVICE_OBJECT pDevObj = NULL;
|
||||
UNICODE_STRING ustrDeviceName;
|
||||
UNICODE_STRING ustrLinkName;
|
||||
//set dispatch functions
|
||||
pDriverObj->DriverUnload = DriverUnload;
|
||||
pDriverObj->MajorFunction[IRP_MJ_DEVICE_CONTROL] = DispatchIoctl;
|
||||
pDriverObj->MajorFunction[IRP_MJ_CREATE] = DispatchCreate;
|
||||
pDriverObj->MajorFunction[IRP_MJ_CLOSE] = DispatchClose;
|
||||
//create device
|
||||
RtlInitUnicodeString(&ustrDeviceName, DEVICE_NAME);
|
||||
status = IoCreateDevice(pDriverObj, 0, &ustrDeviceName, FILE_DEVICE_UNKNOWN, 0, FALSE, &pDevObj);
|
||||
if (!NT_SUCCESS(status))
|
||||
{
|
||||
return status;
|
||||
}
|
||||
//create symbolic link
|
||||
RtlInitUnicodeString(&ustrLinkName, LINK_NAME);
|
||||
status = IoCreateSymbolicLink(&ustrLinkName, &ustrDeviceName);
|
||||
if (!NT_SUCCESS(status))
|
||||
{
|
||||
IoDeleteDevice(pDevObj);
|
||||
return status;
|
||||
}
|
||||
//do sth...
|
||||
MyPrint(_TitleAndFunc "Entry\n");
|
||||
|
||||
InitializeHiddenPageRecordStructure(&g_pHiddenPageRecord);
|
||||
AddHiddenSection(GetCR3ByPID(4), pDriverObj, SECTION_NAME_HIDDEN, g_pHiddenPageRecord);
|
||||
|
||||
WriteEnable();
|
||||
RtlZeroMemory((PVOID)HiddenFunctionA, 10);
|
||||
WriteDisable();
|
||||
|
||||
ContextOriginalToHidden(g_pHiddenPageRecord);
|
||||
|
||||
HiddenFunctionA(g_pHiddenPageRecord);
|
||||
|
||||
ContextHiddenToOriginal(g_pHiddenPageRecord);
|
||||
|
||||
return status;
|
||||
}
|
|
@ -0,0 +1,674 @@
|
|||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 3, 29 June 2007
|
||||
|
||||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The GNU General Public License is a free, copyleft license for
|
||||
software and other kinds of works.
|
||||
|
||||
The licenses for most software and other practical works are designed
|
||||
to take away your freedom to share and change the works. By contrast,
|
||||
the GNU General Public License is intended to guarantee your freedom to
|
||||
share and change all versions of a program--to make sure it remains free
|
||||
software for all its users. We, the Free Software Foundation, use the
|
||||
GNU General Public License for most of our software; it applies also to
|
||||
any other work released this way by its authors. You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
them if you wish), that you receive source code or can get it if you
|
||||
want it, that you can change the software or use pieces of it in new
|
||||
free programs, and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to prevent others from denying you
|
||||
these rights or asking you to surrender the rights. Therefore, you have
|
||||
certain responsibilities if you distribute copies of the software, or if
|
||||
you modify it: responsibilities to respect the freedom of others.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must pass on to the recipients the same
|
||||
freedoms that you received. You must make sure that they, too, receive
|
||||
or can get the source code. And you must show them these terms so they
|
||||
know their rights.
|
||||
|
||||
Developers that use the GNU GPL protect your rights with two steps:
|
||||
(1) assert copyright on the software, and (2) offer you this License
|
||||
giving you legal permission to copy, distribute and/or modify it.
|
||||
|
||||
For the developers' and authors' protection, the GPL clearly explains
|
||||
that there is no warranty for this free software. For both users' and
|
||||
authors' sake, the GPL requires that modified versions be marked as
|
||||
changed, so that their problems will not be attributed erroneously to
|
||||
authors of previous versions.
|
||||
|
||||
Some devices are designed to deny users access to install or run
|
||||
modified versions of the software inside them, although the manufacturer
|
||||
can do so. This is fundamentally incompatible with the aim of
|
||||
protecting users' freedom to change the software. The systematic
|
||||
pattern of such abuse occurs in the area of products for individuals to
|
||||
use, which is precisely where it is most unacceptable. Therefore, we
|
||||
have designed this version of the GPL to prohibit the practice for those
|
||||
products. If such problems arise substantially in other domains, we
|
||||
stand ready to extend this provision to those domains in future versions
|
||||
of the GPL, as needed to protect the freedom of users.
|
||||
|
||||
Finally, every program is threatened constantly by software patents.
|
||||
States should not allow patents to restrict development and use of
|
||||
software on general-purpose computers, but in those that do, we wish to
|
||||
avoid the special danger that patents applied to a free program could
|
||||
make it effectively proprietary. To prevent this, the GPL assures that
|
||||
patents cannot be used to render the program non-free.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
TERMS AND CONDITIONS
|
||||
|
||||
0. Definitions.
|
||||
|
||||
"This License" refers to version 3 of the GNU General Public License.
|
||||
|
||||
"Copyright" also means copyright-like laws that apply to other kinds of
|
||||
works, such as semiconductor masks.
|
||||
|
||||
"The Program" refers to any copyrightable work licensed under this
|
||||
License. Each licensee is addressed as "you". "Licensees" and
|
||||
"recipients" may be individuals or organizations.
|
||||
|
||||
To "modify" a work means to copy from or adapt all or part of the work
|
||||
in a fashion requiring copyright permission, other than the making of an
|
||||
exact copy. The resulting work is called a "modified version" of the
|
||||
earlier work or a work "based on" the earlier work.
|
||||
|
||||
A "covered work" means either the unmodified Program or a work based
|
||||
on the Program.
|
||||
|
||||
To "propagate" a work means to do anything with it that, without
|
||||
permission, would make you directly or secondarily liable for
|
||||
infringement under applicable copyright law, except executing it on a
|
||||
computer or modifying a private copy. Propagation includes copying,
|
||||
distribution (with or without modification), making available to the
|
||||
public, and in some countries other activities as well.
|
||||
|
||||
To "convey" a work means any kind of propagation that enables other
|
||||
parties to make or receive copies. Mere interaction with a user through
|
||||
a computer network, with no transfer of a copy, is not conveying.
|
||||
|
||||
An interactive user interface displays "Appropriate Legal Notices"
|
||||
to the extent that it includes a convenient and prominently visible
|
||||
feature that (1) displays an appropriate copyright notice, and (2)
|
||||
tells the user that there is no warranty for the work (except to the
|
||||
extent that warranties are provided), that licensees may convey the
|
||||
work under this License, and how to view a copy of this License. If
|
||||
the interface presents a list of user commands or options, such as a
|
||||
menu, a prominent item in the list meets this criterion.
|
||||
|
||||
1. Source Code.
|
||||
|
||||
The "source code" for a work means the preferred form of the work
|
||||
for making modifications to it. "Object code" means any non-source
|
||||
form of a work.
|
||||
|
||||
A "Standard Interface" means an interface that either is an official
|
||||
standard defined by a recognized standards body, or, in the case of
|
||||
interfaces specified for a particular programming language, one that
|
||||
is widely used among developers working in that language.
|
||||
|
||||
The "System Libraries" of an executable work include anything, other
|
||||
than the work as a whole, that (a) is included in the normal form of
|
||||
packaging a Major Component, but which is not part of that Major
|
||||
Component, and (b) serves only to enable use of the work with that
|
||||
Major Component, or to implement a Standard Interface for which an
|
||||
implementation is available to the public in source code form. A
|
||||
"Major Component", in this context, means a major essential component
|
||||
(kernel, window system, and so on) of the specific operating system
|
||||
(if any) on which the executable work runs, or a compiler used to
|
||||
produce the work, or an object code interpreter used to run it.
|
||||
|
||||
The "Corresponding Source" for a work in object code form means all
|
||||
the source code needed to generate, install, and (for an executable
|
||||
work) run the object code and to modify the work, including scripts to
|
||||
control those activities. However, it does not include the work's
|
||||
System Libraries, or general-purpose tools or generally available free
|
||||
programs which are used unmodified in performing those activities but
|
||||
which are not part of the work. For example, Corresponding Source
|
||||
includes interface definition files associated with source files for
|
||||
the work, and the source code for shared libraries and dynamically
|
||||
linked subprograms that the work is specifically designed to require,
|
||||
such as by intimate data communication or control flow between those
|
||||
subprograms and other parts of the work.
|
||||
|
||||
The Corresponding Source need not include anything that users
|
||||
can regenerate automatically from other parts of the Corresponding
|
||||
Source.
|
||||
|
||||
The Corresponding Source for a work in source code form is that
|
||||
same work.
|
||||
|
||||
2. Basic Permissions.
|
||||
|
||||
All rights granted under this License are granted for the term of
|
||||
copyright on the Program, and are irrevocable provided the stated
|
||||
conditions are met. This License explicitly affirms your unlimited
|
||||
permission to run the unmodified Program. The output from running a
|
||||
covered work is covered by this License only if the output, given its
|
||||
content, constitutes a covered work. This License acknowledges your
|
||||
rights of fair use or other equivalent, as provided by copyright law.
|
||||
|
||||
You may make, run and propagate covered works that you do not
|
||||
convey, without conditions so long as your license otherwise remains
|
||||
in force. You may convey covered works to others for the sole purpose
|
||||
of having them make modifications exclusively for you, or provide you
|
||||
with facilities for running those works, provided that you comply with
|
||||
the terms of this License in conveying all material for which you do
|
||||
not control copyright. Those thus making or running the covered works
|
||||
for you must do so exclusively on your behalf, under your direction
|
||||
and control, on terms that prohibit them from making any copies of
|
||||
your copyrighted material outside their relationship with you.
|
||||
|
||||
Conveying under any other circumstances is permitted solely under
|
||||
the conditions stated below. Sublicensing is not allowed; section 10
|
||||
makes it unnecessary.
|
||||
|
||||
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
||||
|
||||
No covered work shall be deemed part of an effective technological
|
||||
measure under any applicable law fulfilling obligations under article
|
||||
11 of the WIPO copyright treaty adopted on 20 December 1996, or
|
||||
similar laws prohibiting or restricting circumvention of such
|
||||
measures.
|
||||
|
||||
When you convey a covered work, you waive any legal power to forbid
|
||||
circumvention of technological measures to the extent such circumvention
|
||||
is effected by exercising rights under this License with respect to
|
||||
the covered work, and you disclaim any intention to limit operation or
|
||||
modification of the work as a means of enforcing, against the work's
|
||||
users, your or third parties' legal rights to forbid circumvention of
|
||||
technological measures.
|
||||
|
||||
4. Conveying Verbatim Copies.
|
||||
|
||||
You may convey verbatim copies of the Program's source code as you
|
||||
receive it, in any medium, provided that you conspicuously and
|
||||
appropriately publish on each copy an appropriate copyright notice;
|
||||
keep intact all notices stating that this License and any
|
||||
non-permissive terms added in accord with section 7 apply to the code;
|
||||
keep intact all notices of the absence of any warranty; and give all
|
||||
recipients a copy of this License along with the Program.
|
||||
|
||||
You may charge any price or no price for each copy that you convey,
|
||||
and you may offer support or warranty protection for a fee.
|
||||
|
||||
5. Conveying Modified Source Versions.
|
||||
|
||||
You may convey a work based on the Program, or the modifications to
|
||||
produce it from the Program, in the form of source code under the
|
||||
terms of section 4, provided that you also meet all of these conditions:
|
||||
|
||||
a) The work must carry prominent notices stating that you modified
|
||||
it, and giving a relevant date.
|
||||
|
||||
b) The work must carry prominent notices stating that it is
|
||||
released under this License and any conditions added under section
|
||||
7. This requirement modifies the requirement in section 4 to
|
||||
"keep intact all notices".
|
||||
|
||||
c) You must license the entire work, as a whole, under this
|
||||
License to anyone who comes into possession of a copy. This
|
||||
License will therefore apply, along with any applicable section 7
|
||||
additional terms, to the whole of the work, and all its parts,
|
||||
regardless of how they are packaged. This License gives no
|
||||
permission to license the work in any other way, but it does not
|
||||
invalidate such permission if you have separately received it.
|
||||
|
||||
d) If the work has interactive user interfaces, each must display
|
||||
Appropriate Legal Notices; however, if the Program has interactive
|
||||
interfaces that do not display Appropriate Legal Notices, your
|
||||
work need not make them do so.
|
||||
|
||||
A compilation of a covered work with other separate and independent
|
||||
works, which are not by their nature extensions of the covered work,
|
||||
and which are not combined with it such as to form a larger program,
|
||||
in or on a volume of a storage or distribution medium, is called an
|
||||
"aggregate" if the compilation and its resulting copyright are not
|
||||
used to limit the access or legal rights of the compilation's users
|
||||
beyond what the individual works permit. Inclusion of a covered work
|
||||
in an aggregate does not cause this License to apply to the other
|
||||
parts of the aggregate.
|
||||
|
||||
6. Conveying Non-Source Forms.
|
||||
|
||||
You may convey a covered work in object code form under the terms
|
||||
of sections 4 and 5, provided that you also convey the
|
||||
machine-readable Corresponding Source under the terms of this License,
|
||||
in one of these ways:
|
||||
|
||||
a) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by the
|
||||
Corresponding Source fixed on a durable physical medium
|
||||
customarily used for software interchange.
|
||||
|
||||
b) Convey the object code in, or embodied in, a physical product
|
||||
(including a physical distribution medium), accompanied by a
|
||||
written offer, valid for at least three years and valid for as
|
||||
long as you offer spare parts or customer support for that product
|
||||
model, to give anyone who possesses the object code either (1) a
|
||||
copy of the Corresponding Source for all the software in the
|
||||
product that is covered by this License, on a durable physical
|
||||
medium customarily used for software interchange, for a price no
|
||||
more than your reasonable cost of physically performing this
|
||||
conveying of source, or (2) access to copy the
|
||||
Corresponding Source from a network server at no charge.
|
||||
|
||||
c) Convey individual copies of the object code with a copy of the
|
||||
written offer to provide the Corresponding Source. This
|
||||
alternative is allowed only occasionally and noncommercially, and
|
||||
only if you received the object code with such an offer, in accord
|
||||
with subsection 6b.
|
||||
|
||||
d) Convey the object code by offering access from a designated
|
||||
place (gratis or for a charge), and offer equivalent access to the
|
||||
Corresponding Source in the same way through the same place at no
|
||||
further charge. You need not require recipients to copy the
|
||||
Corresponding Source along with the object code. If the place to
|
||||
copy the object code is a network server, the Corresponding Source
|
||||
may be on a different server (operated by you or a third party)
|
||||
that supports equivalent copying facilities, provided you maintain
|
||||
clear directions next to the object code saying where to find the
|
||||
Corresponding Source. Regardless of what server hosts the
|
||||
Corresponding Source, you remain obligated to ensure that it is
|
||||
available for as long as needed to satisfy these requirements.
|
||||
|
||||
e) Convey the object code using peer-to-peer transmission, provided
|
||||
you inform other peers where the object code and Corresponding
|
||||
Source of the work are being offered to the general public at no
|
||||
charge under subsection 6d.
|
||||
|
||||
A separable portion of the object code, whose source code is excluded
|
||||
from the Corresponding Source as a System Library, need not be
|
||||
included in conveying the object code work.
|
||||
|
||||
A "User Product" is either (1) a "consumer product", which means any
|
||||
tangible personal property which is normally used for personal, family,
|
||||
or household purposes, or (2) anything designed or sold for incorporation
|
||||
into a dwelling. In determining whether a product is a consumer product,
|
||||
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||
product received by a particular user, "normally used" refers to a
|
||||
typical or common use of that class of product, regardless of the status
|
||||
of the particular user or of the way in which the particular user
|
||||
actually uses, or expects or is expected to use, the product. A product
|
||||
is a consumer product regardless of whether the product has substantial
|
||||
commercial, industrial or non-consumer uses, unless such uses represent
|
||||
the only significant mode of use of the product.
|
||||
|
||||
"Installation Information" for a User Product means any methods,
|
||||
procedures, authorization keys, or other information required to install
|
||||
and execute modified versions of a covered work in that User Product from
|
||||
a modified version of its Corresponding Source. The information must
|
||||
suffice to ensure that the continued functioning of the modified object
|
||||
code is in no case prevented or interfered with solely because
|
||||
modification has been made.
|
||||
|
||||
If you convey an object code work under this section in, or with, or
|
||||
specifically for use in, a User Product, and the conveying occurs as
|
||||
part of a transaction in which the right of possession and use of the
|
||||
User Product is transferred to the recipient in perpetuity or for a
|
||||
fixed term (regardless of how the transaction is characterized), the
|
||||
Corresponding Source conveyed under this section must be accompanied
|
||||
by the Installation Information. But this requirement does not apply
|
||||
if neither you nor any third party retains the ability to install
|
||||
modified object code on the User Product (for example, the work has
|
||||
been installed in ROM).
|
||||
|
||||
The requirement to provide Installation Information does not include a
|
||||
requirement to continue to provide support service, warranty, or updates
|
||||
for a work that has been modified or installed by the recipient, or for
|
||||
the User Product in which it has been modified or installed. Access to a
|
||||
network may be denied when the modification itself materially and
|
||||
adversely affects the operation of the network or violates the rules and
|
||||
protocols for communication across the network.
|
||||
|
||||
Corresponding Source conveyed, and Installation Information provided,
|
||||
in accord with this section must be in a format that is publicly
|
||||
documented (and with an implementation available to the public in
|
||||
source code form), and must require no special password or key for
|
||||
unpacking, reading or copying.
|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
License by making exceptions from one or more of its conditions.
|
||||
Additional permissions that are applicable to the entire Program shall
|
||||
be treated as though they were included in this License, to the extent
|
||||
that they are valid under applicable law. If additional permissions
|
||||
apply only to part of the Program, that part may be used separately
|
||||
under those permissions, but the entire Program remains governed by
|
||||
this License without regard to the additional permissions.
|
||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
remove any additional permissions from that copy, or from any part of
|
||||
it. (Additional permissions may be written to require their own
|
||||
removal in certain cases when you modify the work.) You may place
|
||||
additional permissions on material, added by you to a covered work,
|
||||
for which you have or can give appropriate copyright permission.
|
||||
|
||||
Notwithstanding any other provision of this License, for material you
|
||||
add to a covered work, you may (if authorized by the copyright holders of
|
||||
that material) supplement the terms of this License with terms:
|
||||
|
||||
a) Disclaiming warranty or limiting liability differently from the
|
||||
terms of sections 15 and 16 of this License; or
|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
author attributions in that material or in the Appropriate Legal
|
||||
Notices displayed by works containing it; or
|
||||
|
||||
c) Prohibiting misrepresentation of the origin of that material, or
|
||||
requiring that modified versions of such material be marked in
|
||||
reasonable ways as different from the original version; or
|
||||
|
||||
d) Limiting the use for publicity purposes of names of licensors or
|
||||
authors of the material; or
|
||||
|
||||
e) Declining to grant rights under trademark law for use of some
|
||||
trade names, trademarks, or service marks; or
|
||||
|
||||
f) Requiring indemnification of licensors and authors of that
|
||||
material by anyone who conveys the material (or modified versions of
|
||||
it) with contractual assumptions of liability to the recipient, for
|
||||
any liability that these contractual assumptions directly impose on
|
||||
those licensors and authors.
|
||||
|
||||
All other non-permissive additional terms are considered "further
|
||||
restrictions" within the meaning of section 10. If the Program as you
|
||||
received it, or any part of it, contains a notice stating that it is
|
||||
governed by this License along with a term that is a further
|
||||
restriction, you may remove that term. If a license document contains
|
||||
a further restriction but permits relicensing or conveying under this
|
||||
License, you may add to a covered work material governed by the terms
|
||||
of that license document, provided that the further restriction does
|
||||
not survive such relicensing or conveying.
|
||||
|
||||
If you add terms to a covered work in accord with this section, you
|
||||
must place, in the relevant source files, a statement of the
|
||||
additional terms that apply to those files, or a notice indicating
|
||||
where to find the applicable terms.
|
||||
|
||||
Additional terms, permissive or non-permissive, may be stated in the
|
||||
form of a separately written license, or stated as exceptions;
|
||||
the above requirements apply either way.
|
||||
|
||||
8. Termination.
|
||||
|
||||
You may not propagate or modify a covered work except as expressly
|
||||
provided under this License. Any attempt otherwise to propagate or
|
||||
modify it is void, and will automatically terminate your rights under
|
||||
this License (including any patent licenses granted under the third
|
||||
paragraph of section 11).
|
||||
|
||||
However, if you cease all violation of this License, then your
|
||||
license from a particular copyright holder is reinstated (a)
|
||||
provisionally, unless and until the copyright holder explicitly and
|
||||
finally terminates your license, and (b) permanently, if the copyright
|
||||
holder fails to notify you of the violation by some reasonable means
|
||||
prior to 60 days after the cessation.
|
||||
|
||||
Moreover, your license from a particular copyright holder is
|
||||
reinstated permanently if the copyright holder notifies you of the
|
||||
violation by some reasonable means, this is the first time you have
|
||||
received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
Loading…
Reference in New Issue