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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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# ppsspp.pri
# 12/26/2014 jichi
DEPENDPATH += $$PWD
HEADERS += \
$$PWD/funcinfo.h
# EOF

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# ith.pro
# 10/13/2011 jichi
TEMPLATE = subdirs
# The order is important!
SUBDIRS += \
sys \
hook hookxp \
host
OTHER_FILES += dllconfig.pri
include(common/common.pri) # not used
include(import/mono/mono.pri) # not used
include(import/ppsspp/ppsspp.pri) # not used
# EOF

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# sys.pro
# CONFIG += noqt noeh staticlib
# CONFIG(noeh) {
# message(CONFIG noeh)
# QMAKE_CXXFLAGS += /GR-
# QMAKE_CXXFLAGS_RTTI_ON -= /GR
# QMAKE_CXXFLAGS_STL_ON -= /EHsc
# QMAKE_CXXFLAGS_EXCEPTIONS_ON -= /EHsc
# CONFIG(dll) {
# QMAKE_LFLAGS += /ENTRY:"DllMain"
# }
# }
set(vnrsys_src
sys.h
sys.cc
)
add_library(vnrsys STATIC ${vnrsys_src})
target_compile_options(vnrsys PRIVATE
# http://msdn.microsoft.com/library/we6hfdy0.aspx
/GR- # disable RTTI
# http://msdn.microsoft.com/library/1deeycx5.aspx
# /EHs-c- # disable exception handling # CMake bug 15243: http://www.cmake.org/Bug/view.php?id=15243
$<$<CONFIG:Release>:>
$<$<CONFIG:Debug>:>
)
STRING(REPLACE "/EHsc" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
target_link_libraries(vnrsys comctl32.lib)
target_compile_definitions(vnrsys
PRIVATE
)

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#pragma once
// ith/sys.h
// 8/23/2013 jichi
// Branch: ITH/IHF_SYS.h, rev 111
#ifdef _MSC_VER
# pragma warning(disable:4800) // C4800: forcing value to bool
#endif // _MSC_VER
#include "ntdll/ntdll.h"
// jichi 8/24/2013: Why extern "C"? Any specific reason to use C instead of C++ naming?
extern "C" {
//int disasm(BYTE *opcode0); // jichi 8/15/2013: move disasm to separate file
extern WORD *NlsAnsiCodePage;
int FillRange(LPCWSTR name,DWORD *lower, DWORD *upper);
int MB_WC(char *mb, wchar_t *wc);
//int MB_WC_count(char *mb, int mb_length);
int WC_MB(wchar_t *wc, char *mb);
// jichi 10/1/2013: Return 0 if failed. So, it is ambiguous if the search pattern starts at 0
DWORD SearchPattern(DWORD base, DWORD base_length, LPCVOID search, DWORD search_length); // KMP
// jichi 2/5/2014: The same as SearchPattern except it uses 0xff to match everything
// According to @Andys, 0xff seldom appear in the source code: http://sakuradite.com/topic/124
enum : BYTE { SP_ANY = 0xff };
#define SP_ANY_2 SP_ANY,SP_ANY
#define SP_ANY_3 SP_ANY,SP_ANY,SP_ANY
#define SP_ANY_4 SP_ANY,SP_ANY,SP_ANY,SP_ANY
DWORD SearchPatternEx(DWORD base, DWORD base_length, LPCVOID search, DWORD search_length, BYTE wildcard=SP_ANY);
BOOL IthInitSystemService();
void IthCloseSystemService();
DWORD IthGetMemoryRange(LPCVOID mem, DWORD *base, DWORD *size);
BOOL IthCheckFile(LPCWSTR file);
BOOL IthFindFile(LPCWSTR file);
BOOL IthGetFileInfo(LPCWSTR file, LPVOID info, DWORD size = 0x1000);
BOOL IthCheckFileFullPath(LPCWSTR file);
HANDLE IthCreateFile(LPCWSTR name, DWORD option, DWORD share, DWORD disposition);
HANDLE IthCreateFileInDirectory(LPCWSTR name, HANDLE dir, DWORD option, DWORD share, DWORD disposition);
HANDLE IthCreateDirectory(LPCWSTR name);
HANDLE IthCreateFileFullPath(LPCWSTR fullpath, DWORD option, DWORD share, DWORD disposition);
HANDLE IthPromptCreateFile(DWORD option, DWORD share, DWORD disposition);
HANDLE IthCreateSection(LPCWSTR name, DWORD size, DWORD right);
HANDLE IthCreateEvent(LPCWSTR name, DWORD auto_reset=0, DWORD init_state=0);
HANDLE IthOpenEvent(LPCWSTR name);
void IthSetEvent(HANDLE hEvent);
void IthResetEvent(HANDLE hEvent);
HANDLE IthCreateMutex(LPCWSTR name, BOOL InitialOwner, DWORD *exist=0);
HANDLE IthOpenMutex(LPCWSTR name);
BOOL IthReleaseMutex(HANDLE hMutex);
//DWORD IthWaitForSingleObject(HANDLE hObject, DWORD dwTime);
HANDLE IthCreateThread(LPCVOID start_addr, DWORD param, HANDLE hProc=(HANDLE)-1);
DWORD GetExportAddress(DWORD hModule,DWORD hash);
void IthSleep(int time); // jichi 9/28/2013: in ms
void IthSystemTimeToLocalTime(LARGE_INTEGER *ptime);
void FreeThreadStart(HANDLE hProc);
void CheckThreadStart();
} // extern "C"
#ifdef ITH_HAS_HEAP
extern HANDLE hHeap; // used in ith/common/memory.h
#endif // ITH_HAS_HEAP
extern DWORD current_process_id;
extern DWORD debug;
extern BYTE LeadByteTable[];
extern LPVOID page;
extern BYTE launch_time[];
inline DWORD GetHash(LPSTR str)
{
DWORD hash = 0;
//for (; *str; str++)
while (*str)
hash = ((hash>>7) | (hash<<25)) + *str++;
return hash;
}
inline DWORD GetHash(LPCWSTR str)
{
DWORD hash = 0;
//for (; *str; str++)
while (*str)
hash = ((hash>>7) | (hash<<25)) + *str++;
return hash;
}
inline void IthBreak()
{ if (debug) __debugbreak(); }
inline LPCWSTR GetMainModulePath()
{
__asm
{
mov eax, fs:[0x30]
mov eax, [eax + 0xC]
mov eax, [eax + 0xC]
mov eax, [eax + 0x28]
}
}
// jichi 9/28/2013: Add this to lock NtWriteFile in wine
class IthMutexLocker
{
HANDLE m;
public:
explicit IthMutexLocker(HANDLE mutex) : m(mutex)
{ NtWaitForSingleObject(m, 0, 0); }
~IthMutexLocker() { if (m != INVALID_HANDLE_VALUE) IthReleaseMutex(m); }
bool locked() const { return m != INVALID_HANDLE_VALUE; }
void unlock() { if (m != INVALID_HANDLE_VALUE) { IthReleaseMutex(m); m = INVALID_HANDLE_VALUE; } }
};
void IthCoolDown();
BOOL IthIsWine();
BOOL IthIsWindowsXp();
//BOOL IthIsWindows8OrGreater(); // not public
/** Get current dll path.
* @param buf
* @param len
* @return length of the path excluding \0
*/
size_t IthGetCurrentModulePath(wchar_t *buf, size_t len);
// EOF

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# sys.pri
# 8/21/2013 jichi
DEFINES += WITH_LIB_ITH_SYS
LIBS += -lvnrsys
DEPENDPATH += $$PWD
HEADERS += $$PWD/sys.h
#SOURCES += $$PWD/sys.cc
#include($$LIBDIR/winddk/winddk.pri)
#LIBS += -L$$WDK/lib/wxp/i386
# EOF

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# sys.pro
# 8/21/2013 jichi
# Build vnrsys.lib
CONFIG += noqt noeh staticlib
include(../../../../config.pri)
include($$LIBDIR/ntdll/ntdll.pri)
#include($$LIBDIR/winddk/winddk.pri)
#LIBS += -L$$WDK/lib/wxp/i386
# jichi 9/22/2013: When ITH is on wine, certain NT functions are replaced
#DEFINES += ITH_WINE
# jichi 9/14/2013: Windows XP's msvnrt does not have except handler
DEFINES -= ITH_HAS_SEH
# jichi 11/24/2013: Disable manual heap
DEFINES -= ITH_HAS_HEAP
## Libraries
#INCLUDEPATH += $$ITH_HOME/include
#INCLUDEPATH += $$WDK7_HOME/inc/ddk
#LIBS += -lgdi32 -luser32 -lkernel32
#LIBS += -L$$WDK7_HOME/lib/wxp/i386 -lntdll
#LIBS += $$WDK7_HOME/lib/crt/i386/msvcrt.lib # Override msvcrt10
#DEFINES += ITH_HAS_CXX
#LIBS += -lith_sys -lntdll
#LIBS += -lith_tls -lntdll
#LIBS += -lntoskrnl
DEFINES += _CRT_NON_CONFORMING_SWPRINTFS
## Sources
TEMPLATE = lib
TARGET = vnrsys
HEADERS += sys.h
SOURCES += sys.cc
OTHER_FILES += sys.pri
# EOF

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12/16/2013
Differences between xp.dll and non-xp.dll for vnrhook.
non-xp:
CONFIG += eh
xp:
CONFIG += noeh
CONFIG -= embed_manifest_dll # Pure dynamic determined. The manifest would break Windows XP support
include($$LIBDIR/winseh/winseh_safe.pri)

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#ifndef _MEMDBG_H
#define _MEMDBG_H
// memdbg.h
// 4/20/2014 jichi
#ifndef MEMDBG_BEGIN_NAMESPACE
# define MEMDBG_BEGIN_NAMESPACE namespace MemDbg {
#endif
#ifndef MEMDBG_END_NAMESPACE
# define MEMDBG_END_NAMESPACE } // MemDbg
#endif
MEMDBG_BEGIN_NAMESPACE
typedef unsigned char byte_t;
typedef unsigned long dword_t;
//typedef void *address_t; // LPVOID
//typedef const void *const_address_t; // LPCVOID
MEMDBG_END_NAMESPACE
#endif // _MEMDBG_H

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# ntinspect.pri
# 4/20/2014 jichi
win32 {
DEFINES += WITH_LIB_MEMDBG
DEPENDPATH += $$PWD
HEADERS += \
$$PWD/memdbg.h \
$$PWD/memsearch.h
SOURCES += \
$$PWD/memsearch.cc
}
# EOF

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// memsearch.cc
// 4/20/2014 jichi
#include "memdbg/memsearch.h"
#include <windows.h>
// Helpers
namespace { // unnamed
enum : BYTE { byte_nop = 0x90 };
enum : BYTE { byte_int3 = 0xcc };
enum : WORD { word_2int3 = 0xcccc };
// jichi 4/19/2014: Return the integer that can mask the signature
DWORD sigMask(DWORD sig)
{
__asm
{
xor ecx,ecx
mov eax,sig
_mask:
shr eax,8
inc ecx
test eax,eax
jnz _mask
sub ecx,4
neg ecx
or eax,-1
shl ecx,3
shr eax,cl
}
}
/**
* Return the address of the first matched pattern.
* The same as ITH SearchPattern(). KMP is used.
* Return 0 if failed. The return result is ambiguous if the pattern address is 0.
*
* @param startAddress search start address
* @param range search range
* @param pattern array of bytes to match
* @param patternSize size of the pattern array
* @return relative offset from the startAddress
*/
DWORD searchPattern(DWORD base, DWORD base_length, LPCVOID search, DWORD search_length) // KMP
{
__asm
{
mov eax,search_length
alloc:
push 0
sub eax,1
jnz alloc
mov edi,search
mov edx,search_length
mov ecx,1
xor esi,esi
build_table:
mov al,byte ptr [edi+esi]
cmp al,byte ptr [edi+ecx]
sete al
test esi,esi
jz pre
test al,al
jnz pre
mov esi,[esp+esi*4-4]
jmp build_table
pre:
test al,al
jz write_table
inc esi
write_table:
mov [esp+ecx*4],esi
inc ecx
cmp ecx,edx
jb build_table
mov esi,base
xor edx,edx
mov ecx,edx
matcher:
mov al,byte ptr [edi+ecx]
cmp al,byte ptr [esi+edx]
sete al
test ecx,ecx
jz match
test al,al
jnz match
mov ecx, [esp+ecx*4-4]
jmp matcher
match:
test al,al
jz pre2
inc ecx
cmp ecx,search_length
je finish
pre2:
inc edx
cmp edx,base_length // search_length
jb matcher
mov edx,search_length
dec edx
finish:
mov ecx,search_length
sub edx,ecx
lea eax,[edx+1]
lea ecx,[ecx*4]
add esp,ecx
}
}
/**
* jichi 2/5/2014: The same as SearchPattern except it uses 0xff to match everything
* According to @Andys, 0xff seldom appears in the source code: http://sakuradite.com/topic/124
*/
DWORD searchPatternEx(DWORD base, DWORD base_length, LPCVOID search, DWORD search_length, BYTE wildcard) // KMP
{
__asm
{
// jichi 2/5/2014 BEGIN
mov bl,wildcard
// jichi 2/5/2014 END
mov eax,search_length
alloc:
push 0
sub eax,1
jnz alloc // jichi 2/5/2014: this will also set %eax to zero
mov edi,search
mov edx,search_length
mov ecx,1
xor esi,esi
build_table:
mov al,byte ptr [edi+esi]
cmp al,byte ptr [edi+ecx]
sete al
test esi,esi
jz pre
test al,al
jnz pre
mov esi,[esp+esi*4-4]
jmp build_table
pre:
test al,al
jz write_table
inc esi
write_table:
mov [esp+ecx*4],esi
inc ecx
cmp ecx,edx
jb build_table
mov esi,base
xor edx,edx
mov ecx,edx
matcher:
mov al,byte ptr [edi+ecx] // search
// jichi 2/5/2014 BEGIN
mov bh,al // save loaded byte to reduce cache access. %ah is not used and always zero
cmp al,bl // %bl is the wildcard byte
sete al
test al,al
jnz wildcard_matched
mov al,bh // restore the loaded byte
// jichi 2/5/2014 END
cmp al,byte ptr [esi+edx] // base
sete al
// jichi 2/5/2014 BEGIN
wildcard_matched:
// jichi 2/5/2014 END
test ecx,ecx
jz match
test al,al
jnz match
mov ecx, [esp+ecx*4-4]
jmp matcher
match:
test al,al
jz pre2
inc ecx
cmp ecx,search_length
je finish
pre2:
inc edx
cmp edx,base_length // search_length
jb matcher
mov edx,search_length
dec edx
finish:
mov ecx,search_length
sub edx,ecx
lea eax,[edx+1]
lea ecx,[ecx*4]
add esp,ecx
}
}
// Modified from ITH findCallOrJmpAbs
// Example call:
// 00449063 |. ff15 5cf05300 call dword ptr ds:[<&gdi32.getglyphoutli>; \GetGlyphOutlineA
enum : WORD {
word_jmp = 0x25ff
, word_call = 0x15ff // far call
};
/***
* Return the absolute address of op. Op takes 1 parameter.
*
* @param op first half of the operator
* @param arg1 the function address
* @param start address
* @param search range
* @return absolute address or 0
*/
DWORD findWordCall(WORD op, DWORD arg1, DWORD start, DWORD size)
{
typedef WORD optype;
typedef DWORD argtype;
enum { START = 0x1000 }; // leading size to skip
for (DWORD i = START; i < size - sizeof(argtype); i++)
if (op == *(optype *)(start + i)) {
DWORD t = *(DWORD *)(start + i + sizeof(optype));
if (t > start && t < start + size) {
if (arg1 == *(argtype *)t)
return start + i;
else
i += sizeof(optype) + sizeof(argtype) - 1; // == 5
}
}
return 0;
}
// Modified from ITH findCallOrJmpAbs
enum : BYTE {
byte_call = 0xe8 // near call
, byte_push_small = 0x6a // push byte operand
, byte_push_large = 0x68 // push operand > 0xff
};
/***
* Return the absolute address of op. Op takes 1 address parameter.
*
* @param op first half of the operator
* @param arg1 the function address
* @param start address
* @param search range
* @return absolute address or 0
*/
DWORD findByteCall(BYTE op, DWORD arg1, DWORD start, DWORD size)
{
typedef BYTE optype;
typedef DWORD argtype;
enum { START = 0x1000 }; // leading size to skip
for (DWORD i = START; i < size - sizeof(argtype); i++)
if (op == *(optype *)(start + i)) {
DWORD t = *(DWORD *)(start + i + sizeof(optype));
if (t > start && t < start + size) {
if (arg1 == *(argtype *)t)
return start + i;
else
i += sizeof(optype) + sizeof(argtype) - 1; // == 4
}
}
return 0;
}
/***
* Return the absolute address of op. Op takes 1 parameter.
*
* @param op first half of the operator
* @param arg1 the first operand
* @param start address
* @param search range
* @return absolute address or 0
*/
//DWORD findByteOp1(BYTE op, DWORD arg1, DWORD start, DWORD size)
//{
// typedef BYTE optype;
// typedef DWORD argtype;
//
// enum { START = 0x1000 }; // leading size to skip
// for (DWORD i = START; i < size - sizeof(argtype); i++)
// if (op == *(optype *)(start + i)) {
// DWORD t = *(DWORD *)(start + i + sizeof(optype));
// if (t == arg1) {
// return start + i;
// else
// i += sizeof(optype) + sizeof(argtype) - 1; // == 4
// }
// }
// return 0;
//}
} // namespace unnamed
MEMDBG_BEGIN_NAMESPACE
DWORD findJumpAddress(DWORD funcAddr, DWORD lowerBound, DWORD upperBound)
{ return findWordCall(word_jmp, funcAddr, lowerBound, upperBound - lowerBound); }
DWORD findFarCallAddress(DWORD funcAddr, DWORD lowerBound, DWORD upperBound)
{ return findWordCall(word_call, funcAddr, lowerBound, upperBound - lowerBound); }
DWORD findNearCallAddress(DWORD funcAddr, DWORD lowerBound, DWORD upperBound)
{ return findByteCall(byte_call, funcAddr, lowerBound, upperBound - lowerBound); }
DWORD findPushDwordAddress(DWORD value, DWORD lowerBound, DWORD upperBound)
{
//value = _byteswap_ulong(value); // swap to bigendian
const BYTE *p = (BYTE *)&value;
const BYTE bytes[] = {byte_push_large, p[0], p[1], p[2], p[3]};
return findBytes(bytes, sizeof(bytes), lowerBound, upperBound);
}
DWORD findPushByteAddress(BYTE value, DWORD lowerBound, DWORD upperBound)
{
const BYTE bytes[] = {byte_push_small, value};
return findBytes(bytes, sizeof(bytes), lowerBound, upperBound);
}
DWORD findCallerAddress(DWORD funcAddr, DWORD sig, DWORD lowerBound, DWORD upperBound, DWORD reverseLength)
{
enum { Start = 0x1000 };
enum { PatternSize = 4 };
const DWORD size = upperBound - lowerBound - PatternSize;
const DWORD fun = (DWORD)funcAddr;
// Example function call:
// 00449063 |. ff15 5cf05300 call dword ptr ds:[<&gdi32.getglyphoutli>; \GetGlyphOutlineA
//WCHAR str[0x40];
const DWORD mask = sigMask(sig);
for (DWORD i = Start; i < size; i++)
if (*(WORD *)(lowerBound + i) == word_call) {
DWORD t = *(DWORD *)(lowerBound + i + 2);
if (t >= lowerBound && t <= upperBound - PatternSize) {
if (*(DWORD *)t == fun)
//swprintf(str,L"CALL addr: 0x%.8X",lowerBound + i);
//OutputConsole(str);
for (DWORD j = i ; j > i - reverseLength; j--)
if ((*(DWORD *)(lowerBound + j) & mask) == sig) // Fun entry 1.
//swprintf(str,L"Entry: 0x%.8X",lowerBound + j);
//OutputConsole(str);
return lowerBound + j;
} else
i += 6;
}
//OutputConsole(L"Find call and entry failed.");
return 0;
}
DWORD findMultiCallerAddress(DWORD funcAddr, const DWORD sigs[], DWORD sigCount, DWORD lowerBound, DWORD upperBound, DWORD reverseLength)
{
enum { Start = 0x1000 };
enum { PatternSize = 4 };
const DWORD size = upperBound - lowerBound - PatternSize;
const DWORD fun = (DWORD)funcAddr;
// Example function call:
// 00449063 |. ff15 5cf05300 call dword ptr ds:[<&gdi32.getglyphoutli>; \GetGlyphOutlineA
//WCHAR str[0x40];
enum { MaxSigCount = 0x10 }; // mast be larger than maximum sigCount
DWORD masks[MaxSigCount];
for (DWORD k = 0; k < sigCount; k++)
masks[k] = sigMask(sigs[k]);
for (DWORD i = Start; i < size; i++)
if (*(WORD *)(lowerBound + i) == word_call) {
DWORD t = *(DWORD *)(lowerBound + i + 2);
if (t >= lowerBound && t <= upperBound - PatternSize) {
if (*(DWORD *)t == fun)
//swprintf(str,L"CALL addr: 0x%.8X",lowerBound + i);
//OutputConsole(str);
for (DWORD j = i ; j > i - reverseLength; j--) {
DWORD ret = lowerBound + j,
inst = *(DWORD *)ret;
for (DWORD k = 0; k < sigCount; k++)
if ((inst & masks[k]) == sigs[k]) // Fun entry 1.
//swprintf(str,L"Entry: 0x%.8X",lowerBound + j);
//OutputConsole(str);
return ret;
}
} else
i += 6;
}
//OutputConsole(L"Find call and entry failed.");
return 0;
}
DWORD findLastCallerAddress(DWORD funcAddr, DWORD sig, DWORD lowerBound, DWORD upperBound, DWORD reverseLength)
{
enum { Start = 0x1000 };
enum { PatternSize = 4 };
const DWORD size = upperBound - lowerBound - PatternSize;
const DWORD fun = (DWORD)funcAddr;
//WCHAR str[0x40];
DWORD ret = 0;
const DWORD mask = sigMask(sig);
for (DWORD i = Start; i < size; i++)
if (*(WORD *)(lowerBound + i) == word_call) {
DWORD t = *(DWORD *)(lowerBound + i + 2);
if (t >= lowerBound && t <= upperBound - PatternSize) {
if (*(DWORD *)t == fun)
//swprintf(str,L"CALL addr: 0x%.8X",lowerBound + i);
//OutputConsole(str);
for (DWORD j = i ; j > i - reverseLength; j--)
if ((*(DWORD *)(lowerBound + j) & mask) == sig) // Fun entry 1.
//swprintf(str,L"Entry: 0x%.8X",lowerBound + j);
//OutputConsole(str);
ret = lowerBound + j;
} else
i += 6;
}
//OutputConsole(L"Find call and entry failed.");
return ret;
}
DWORD findCallerAddressAfterInt3(dword_t funcAddr, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize)
{
DWORD addr = findCallerAddress(funcAddr, word_2int3, lowerBound, upperBound, callerSearchSize);
if (addr)
while (byte_int3 == *(BYTE *)++addr);
return addr;
}
DWORD findLastCallerAddressAfterInt3(dword_t funcAddr, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize)
{
DWORD addr = findLastCallerAddress(funcAddr, word_2int3, lowerBound, upperBound, callerSearchSize);
if (addr)
while (byte_int3 == *(BYTE *)++addr);
return addr;
}
DWORD findEnclosingAlignedFunction(DWORD start, DWORD back_range)
{
start &= ~0xf;
for (DWORD i = start, j = start - back_range; i > j; i-=0x10) {
DWORD k = *(DWORD *)(i-4);
if (k == 0xcccccccc
|| k == 0x90909090
|| k == 0xccccccc3
|| k == 0x909090c3
)
return i;
DWORD t = k & 0xff0000ff;
if (t == 0xcc0000c2 || t == 0x900000c2)
return i;
k >>= 8;
if (k == 0xccccc3 || k == 0x9090c3)
return i;
t = k & 0xff;
if (t == 0xc2)
return i;
k >>= 8;
if (k == 0xccc3 || k == 0x90c3)
return i;
k >>= 8;
if (k == 0xc3)
return i;
}
return 0;
}
DWORD findBytes(const void *pattern, DWORD patternSize, DWORD lowerBound, DWORD upperBound)
{
DWORD reladdr = searchPattern(lowerBound, upperBound - lowerBound, pattern, patternSize);
return reladdr ? lowerBound + reladdr : 0;
}
DWORD matchBytes(const void *pattern, DWORD patternSize, DWORD lowerBound, DWORD upperBound, BYTE wildcard)
{
DWORD reladdr = searchPatternEx(lowerBound, upperBound - lowerBound, pattern, patternSize, wildcard);
return reladdr ? lowerBound + reladdr : 0;
}
#if 0 // not used
DWORD findBytesInPages(const void *pattern, DWORD patternSize, DWORD lowerBound, DWORD upperBound, SearchType search)
{
//enum { MinPageSize = 4 * 1024 }; // 4k
DWORD ret = 0;
DWORD start = lowerBound,
stop = start;
MEMORY_BASIC_INFORMATION mbi = {};
//lowerBound = 0x10000000;
//upperBound = 0x14000000;
//SIZE_T ok = ::VirtualQuery((LPCVOID)lowerBound, &mbi, sizeof(mbi));
//ITH_GROWL_DWORD7(1, start, stop, mbi.RegionSize, mbi.Protect, mbi.Type, mbi.State);
//return matchBytes(pattern, patternSize, lowerBound, upperBound, wildcard);
while (stop < upperBound) {
SIZE_T ok = ::VirtualQuery((LPCVOID)start, &mbi, sizeof(mbi));
if (!mbi.RegionSize)
break;
// Only visit readable and committed region
// Protect could be zero if not allowed to query
if (!ok || !mbi.Protect || mbi.Protect&PAGE_NOACCESS) {
if (stop > start && (ret = findBytes(pattern, patternSize, lowerBound, upperBound)))
return ret;
if (search != SearchAll)
return 0;
stop += mbi.RegionSize;
start = stop;
} else
stop += mbi.RegionSize;
}
if (stop > start)
ret = findBytes(pattern, patternSize, start, min(upperBound, stop));
return ret;
}
DWORD matchBytesInPages(const void *pattern, DWORD patternSize, DWORD lowerBound, DWORD upperBound, BYTE wildcard, SearchType search)
{
//enum { MinPageSize = 4 * 1024 }; // 4k
DWORD ret = 0;
DWORD start = lowerBound,
stop = start;
MEMORY_BASIC_INFORMATION mbi = {};
//lowerBound = 0x10000000;
//upperBound = 0x14000000;
//SIZE_T ok = ::VirtualQuery((LPCVOID)lowerBound, &mbi, sizeof(mbi));
//ITH_GROWL_DWORD7(1, start, stop, mbi.RegionSize, mbi.Protect, mbi.Type, mbi.State);
//return matchBytes(pattern, patternSize, lowerBound, upperBound, wildcard);
while (stop < upperBound) {
SIZE_T ok = ::VirtualQuery((LPCVOID)start, &mbi, sizeof(mbi));
if (!mbi.RegionSize)
break;
// Only visit readable and committed region
// Protect could be zero if not allowed to query
if (!ok || !mbi.Protect || mbi.Protect&PAGE_NOACCESS) {
if (stop > start && (ret = matchBytes(pattern, patternSize, lowerBound, upperBound, wildcard)))
return ret;
if (search != SearchAll)
return 0;
stop += mbi.RegionSize;
start = stop;
} else
stop += mbi.RegionSize;
}
if (stop > start)
ret = matchBytes(pattern, patternSize, start, min(upperBound, stop), wildcard);
return ret;
}
#endif // 0
MEMDBG_END_NAMESPACE
// EOF
#if 0 // disabled
/**
* Search from stopAddres back to startAddress - range
* This function is not well debugged
*/
DWORD reverseSearchPattern(DWORD base, DWORD base_length, LPCVOID search, DWORD search_length) // KMP
{
__asm
{
mov eax,search_length
alloc:
push 0
sub eax,1
jnz alloc
mov edi,search
mov edx,search_length
mov ecx,1
xor esi,esi
build_table:
mov al,byte ptr [edi+esi]
cmp al,byte ptr [edi+ecx]
sete al
test esi,esi
jz pre
test al,al
jnz pre
mov esi,[esp+esi*4-4]
jmp build_table
pre:
test al,al
jz write_table
inc esi
write_table:
mov [esp+ecx*4],esi
inc ecx
cmp ecx,edx
jb build_table
mov esi,base
xor edx,edx
mov ecx,edx
matcher:
mov al,byte ptr [edi+ecx]
cmp al,byte ptr [esi-edx] // jichi 6/1/2014: The only place that is modified
sete al
test ecx,ecx
jz match
test al,al
jnz match
mov ecx, [esp+ecx*4-4]
jmp matcher
match:
test al,al
jz pre2
inc ecx
cmp ecx,search_length
je finish
pre2:
inc edx
cmp edx,base_length // search_length
jb matcher
mov edx,search_length
dec edx
finish:
mov ecx,search_length
sub edx,ecx
lea eax,[edx+1]
lea ecx,[ecx*4]
add esp,ecx
}
}
#endif // 0, disabled

162
vnr/memdbg/memsearch.h Normal file
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@ -0,0 +1,162 @@
#ifndef _MEMDBG_MEMSEARCH_H
#define _MEMDBG_MEMSEARCH_H
// memsearch.h
// 4/20/2014 jichi
#include "memdbg/memdbg.h"
MEMDBG_BEGIN_NAMESPACE
/// Estimated maximum size of the caller function, the same as ITH FindCallAndEntryAbs
enum { MaximumFunctionSize = 0x800 };
/**
* Return the absolute address of the caller function
* The same as ITH FindCallAndEntryAbs().
*
* @param funcAddr callee function address
* @param funcInst the machine code where the caller function starts
* @param lowerBound the lower memory address to search
* @param upperBound the upper memory address to search
* @param* callerSearchSize the maximum size of caller
* @return the caller absolute address if succeed or 0 if fail
*
* Example funcInst:
* 0x55: push ebp
* 0x81,0xec: sub esp XXOO (0xec81)
* 0x83,0xec: sub esp XXOO (0xec83)
*/
dword_t findCallerAddress(dword_t funcAddr, dword_t funcInst, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize = MaximumFunctionSize);
dword_t findCallerAddressAfterInt3(dword_t funcAddr, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize = MaximumFunctionSize);
dword_t findLastCallerAddress(dword_t funcAddr, dword_t funcInst, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize = MaximumFunctionSize);
dword_t findLastCallerAddressAfterInt3(dword_t funcAddr, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize = MaximumFunctionSize);
dword_t findMultiCallerAddress(dword_t funcAddr, const dword_t funcInsts[], dword_t funcInstCount, dword_t lowerBound, dword_t upperBound, dword_t callerSearchSize = MaximumFunctionSize);
/**
* Return the absolute address of the long jump (not short jump) instruction address.
* The same as ITH FindCallOrJmpAbs(false).
*
* @param funcAddr callee function address
* @param lowerBound the lower memory address to search
* @param upperBound the upper memory address to search
* @return the call instruction address if succeed or 0 if fail
*/
dword_t findJumpAddress(dword_t funcAddr, dword_t lowerBound, dword_t upperBound);
/**
* Return the absolute address of the far call (inter-module) instruction address.
* The same as ITH FindCallOrJmpAbs(true).
*
* @param funcAddr callee function address
* @param lowerBound the lower memory address to search
* @param upperBound the upper memory address to search
* @return the call instruction address if succeed or 0 if fail
*/
dword_t findFarCallAddress(dword_t funcAddr, dword_t lowerBound, dword_t upperBound);
/// Near call (intra-module)
dword_t findNearCallAddress(dword_t funcAddr, dword_t lowerBound, dword_t upperBound);
/// Default to far call
inline dword_t findCallAddress(dword_t funcAddr, dword_t lowerBound, dword_t upperBound)
{ return findFarCallAddress(funcAddr, lowerBound, upperBound); }
/// Push value >= 0xff
dword_t findPushDwordAddress(dword_t value, dword_t lowerBound, dword_t upperBound);
/// Push value <= 0xff
dword_t findPushByteAddress(byte_t value, dword_t lowerBound, dword_t upperBound);
/// Default to push DWORD
inline dword_t findPushAddress(dword_t value, dword_t lowerBound, dword_t upperBound)
{ return findPushDwordAddress(value, lowerBound, upperBound); }
/**
* Return the enclosing function address outside the given address.
* The same as ITH FindEntryAligned().
* "Aligned" here means the function must be after in3 (0xcc) or nop (0x90).
*
* If the function does NOT exist, this function might raise without admin privilege.
* It is safer to wrap this function within SEH.
*
* @param addr address within th function
* @param searchSize max backward search size
* @return beginning address of the function
* @exception illegal memory access
*/
dword_t findEnclosingAlignedFunction(dword_t addr, dword_t searchSize = MaximumFunctionSize);
/**
* Return the address of the first matched pattern.
* Return 0 if failed. The return result is ambiguous if the pattern address is 0.
* This function simpily traverse all bytes in memory range and would raise
* if no access to the region.
*
* @param pattern array of bytes to match
* @param patternSize size of the pattern array
* @param lowerBound search start address
* @param upperBound search stop address
* @return absolute address
* @exception illegal memory access
*/
dword_t findBytes(const void *pattern, dword_t patternSize, dword_t lowerBound, dword_t upperBound);
/**
* jichi 2/5/2014: The same as findBytes except it uses widecard to match everything.
* The widecard should use the byte seldom appears in the pattern.
* See: http://sakuradite.com/topic/124
*
* @param pattern array of bytes to match
* @param patternSize size of the pattern array
* @param lowerBound search start address
* @param upperBound search stop address
* @param* widecard the character to match everything
* @return absolute address
* @exception illegal memory access
*/
enum : byte_t { WidecardByte = 0x11 }; // jichi 7/17/2014: 0x11 seldom appear in PSP code pattern
//enum : WORD { WidecardWord = 0xffff };
dword_t matchBytes(const void *pattern, dword_t patternSize, dword_t lowerBound, dword_t upperBound,
byte_t wildcard = WidecardByte);
// User space: 0 - 2G (0 - 0x7ffeffff)
// Kernel space: 2G - 4G (0x80000000 - 0xffffffff)
//
// http://msdn.microsoft.com/en-us/library/windows/hardware/ff560042%28v=vs.85%29.aspx
// http://codesequoia.wordpress.com/2008/11/28/understand-process-address-space-usage/
// http://stackoverflow.com/questions/17244912/open-process-with-debug-privileges-and-read-write-memory
enum MemoryRange : dword_t {
UserMemoryStartAddress = 0, UserMemoryStopAddress = 0x7ffeffff
, KernelMemoryStartAddress = 0x80000000, KernelMemoryStopAddress = 0xffffffff
, MappedMemoryStartAddress = 0x01000000
, MemoryStartAddress = UserMemoryStartAddress, MemoryStopAddress = UserMemoryStopAddress
};
#if 0 // not used
/**
* Traverse memory continues pages and return the address of the first matched pattern.
*
* @param pattern array of bytes to match
* @param patternSize size of the pattern array
* @param lowerBound search start address
* @param upperBound search stop address
* @param* search search all pages (SearchAll) or stop on first illegal access (SearchFirst)
* @return absolute address
*/
enum SearchType : byte_t { SearchAll = 0 , SearchFirst };
dword_t findBytesInPages(const void *pattern, dword_t patternSize,
dword_t lowerBound = MemoryStartAddress, dword_t upperBound = MemoryStopAddress,
SearchType search = SearchAll);
dword_t matchBytesInPages(const void *pattern, dword_t patternSize,
dword_t lowerBound = MemoryStartAddress, dword_t upperBound = MemoryStopAddress,
byte_t wildcard = WidecardByte, SearchType search = SearchAll);
#endif // 0
MEMDBG_END_NAMESPACE
#endif // _MEMDBG_MEMSEARCH_H