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Yoshi2 2021-09-16 09:13:53 +02:00
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120
ctypes.txt Normal file
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__name__
__doc__
__package__
__loader__
__spec__
__path__
__file__
__cached__
__builtins__
_os
_sys
_types
__version__
Union
Structure
Array
_Pointer
_CFuncPtr
_ctypes_version
RTLD_LOCAL
RTLD_GLOBAL
ArgumentError
_calcsize
FormatError
DEFAULT_MODE
_FUNCFLAG_CDECL
_FUNCFLAG_PYTHONAPI
_FUNCFLAG_USE_ERRNO
_FUNCFLAG_USE_LASTERROR
create_string_buffer
c_buffer
_c_functype_cache
CFUNCTYPE
_dlopen
_FUNCFLAG_STDCALL
_win_functype_cache
WINFUNCTYPE
sizeof
byref
addressof
alignment
resize
get_errno
set_errno
_SimpleCData
_check_size
py_object
c_short
c_ushort
c_long
c_ulong
c_int
c_uint
c_float
c_double
c_longdouble
c_longlong
c_ulonglong
c_ubyte
c_byte
c_char
c_char_p
c_void_p
c_voidp
c_bool
POINTER
pointer
_pointer_type_cache
c_wchar_p
c_wchar
_reset_cache
create_unicode_buffer
SetPointerType
ARRAY
CDLL
PyDLL
WinDLL
_check_HRESULT
HRESULT
OleDLL
LibraryLoader
cdll
pydll
pythonapi
windll
oledll
GetLastError
get_last_error
set_last_error
WinError
c_size_t
c_ssize_t
_memmove_addr
_memset_addr
_string_at_addr
_cast_addr
memmove
memset
PYFUNCTYPE
_cast
cast
_string_at
string_at
_wstring_at_addr
_wstring_at
wstring_at
DllGetClassObject
DllCanUnloadNow
_endian
BigEndianStructure
LittleEndianStructure
c_int8
c_uint8
c_int16
c_int32
c_int64
c_uint16
c_uint32
c_uint64
wintypes

257
memtest.py Normal file
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import ctypes
import struct
from ctypes import wintypes, sizeof, addressof, POINTER, pointer
from ctypes.wintypes import DWORD, ULONG, LONG, WORD
# Various Windows structs/enums needed for operation
NULL = 0
TH32CS_SNAPHEAPLIST = 0x00000001
TH32CS_SNAPPROCESS = 0x00000002
TH32CS_SNAPTHREAD = 0x00000004
TH32CS_SNAPMODULE = 0x00000008
TH32CS_SNAPALL = TH32CS_SNAPHEAPLIST | TH32CS_SNAPPROCESS | TH32CS_SNAPTHREAD | TH32CS_SNAPMODULE
assert TH32CS_SNAPALL == 0xF
PROCESS_QUERY_INFORMATION = 0x0400
PROCESS_VM_OPERATION = 0x0008
PROCESS_VM_READ = 0x0010
PROCESS_VM_WRITE = 0x0020
MEM_MAPPED = 0x40000
ULONG_PTR = ctypes.c_ulonglong
class PROCESSENTRY32(ctypes.Structure):
_fields_ = [ ( 'dwSize' , DWORD ) ,
( 'cntUsage' , DWORD) ,
( 'th32ProcessID' , DWORD) ,
( 'th32DefaultHeapID' , ctypes.POINTER(ULONG)) ,
( 'th32ModuleID' , DWORD) ,
( 'cntThreads' , DWORD) ,
( 'th32ParentProcessID' , DWORD) ,
( 'pcPriClassBase' , LONG) ,
( 'dwFlags' , DWORD) ,
( 'szExeFile' , ctypes.c_char * 260 ) ]
class MEMORY_BASIC_INFORMATION(ctypes.Structure):
_fields_ = [ ( 'BaseAddress' , ctypes.c_void_p),
( 'AllocationBase' , ctypes.c_void_p),
( 'AllocationProtect' , DWORD),
( 'PartitionID' , WORD),
( 'RegionSize' , ctypes.c_size_t),
( 'State' , DWORD),
( 'Protect' , DWORD),
( 'Type' , DWORD)]
class PSAPI_WORKING_SET_EX_BLOCK(ctypes.Structure):
_fields_ = [ ( 'Flags', ULONG_PTR),
( 'Valid', ULONG_PTR),
( 'ShareCount', ULONG_PTR),
( 'Win32Protection', ULONG_PTR),
( 'Shared', ULONG_PTR),
( 'Node', ULONG_PTR),
( 'Locked', ULONG_PTR),
( 'LargePage', ULONG_PTR),
( 'Reserved', ULONG_PTR),
( 'Bad', ULONG_PTR),
( 'ReservedUlong', ULONG_PTR)]
#class PSAPI_WORKING_SET_EX_INFORMATION(ctypes.Structure):
# _fields_ = [ ( 'VirtualAddress' , ctypes.c_void_p),
# ( 'VirtualAttributes' , PSAPI_WORKING_SET_EX_BLOCK)]
class PSAPI_WORKING_SET_EX_INFORMATION(ctypes.Structure):
_fields_ = [ ( 'VirtualAddress' , ctypes.c_void_p),
#( 'Flags', ULONG_PTR),
( 'Valid', ULONG_PTR, 1)]
#( 'ShareCount', ULONG_PTR),
#( 'Win32Protection', ULONG_PTR),
#( 'Shared', ULONG_PTR),
#( 'Node', ULONG_PTR),
#( 'Locked', ULONG_PTR),
#( 'LargePage', ULONG_PTR),
#( 'Reserved', ULONG_PTR),
#( 'Bad', ULONG_PTR),
#( 'ReservedUlong', ULONG_PTR)]
#def print_values(self):
# for i,v in self._fields_:
# print(i, getattr(self, i))
# The following code is a port of aldelaro5's Dolphin memory access methods
# for Windows into Python+ctypes.
# https://github.com/aldelaro5/Dolphin-memory-engine
"""
MIT License
Copyright (c) 2017 aldelaro5
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE."""
class Dolphin(object):
def __init__(self):
self.pid = -1
self.handle = -1
self.address_start = 0
self.mem1_start = 0
self.mem2_start = 0
self.mem2_exists = False
def find_dolphin(self):
entry = PROCESSENTRY32()
entry.dwSize = sizeof(PROCESSENTRY32)
snapshot = ctypes.windll.kernel32.CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL)
print(addressof(entry), hex(addressof(entry)))
a = ULONG(addressof(entry))
self.pid = -1
self.handle = -1
if ctypes.windll.kernel32.Process32First(snapshot, pointer(entry)):
if entry.szExeFile in (b"Dolphin.exe", b"DolphinQt2.exe", b"DolphinWx.exe"):
self.pid = entry.th32ProcessID
else:
while ctypes.windll.kernel32.Process32Next(snapshot, pointer(entry)):
if entry.szExeFile in (b"Dolphin.exe", b"DolphinQt2.exe", b"DolphinWx.exe"):
self.pid = entry.th32ProcessID
ctypes.windll.kernel32.CloseHandle(snapshot)
if self.pid == -1:
return False
self.handle = ctypes.windll.kernel32.OpenProcess(
PROCESS_QUERY_INFORMATION | PROCESS_VM_OPERATION | PROCESS_VM_READ | PROCESS_VM_WRITE,
False, self.pid)
return True
def get_emu_info(self):
info = MEMORY_BASIC_INFORMATION()
MEM1_found = False
p = NULL
while ctypes.windll.kernel32.VirtualQueryEx(self.handle, ctypes.c_void_p(p), pointer(info), sizeof(info)) == sizeof(info):
p += info.RegionSize
if info.RegionSize == 0x4000000:
region_base_address = info.BaseAddress
if MEM1_found and info.BaseAddress > self.address_start + 0x10000000:
break
page_info = PSAPI_WORKING_SET_EX_INFORMATION()
page_info.VirtualAddress = info.BaseAddress
if ctypes.windll.psapi.QueryWorkingSetEx(
self.handle,
pointer(page_info),
sizeof(PSAPI_WORKING_SET_EX_INFORMATION)
):
if (page_info.Valid):
self.mem2_start = region_base_address
self.mem2_exists = True
elif not MEM1_found and info.RegionSize == 0x2000000 and info.Type == MEM_MAPPED:
page_info = PSAPI_WORKING_SET_EX_INFORMATION()
page_info.VirtualAddress = info.BaseAddress
if ctypes.windll.psapi.QueryWorkingSetEx(
self.handle,
pointer(page_info),
sizeof(PSAPI_WORKING_SET_EX_INFORMATION)
):
print(page_info.Valid)
if (page_info.Valid):
self.address_start = info.BaseAddress
MEM1_found = True
if MEM1_found and self.mem2_exists:
break
if self.address_start == 0:
return False
return True
def read_ram(self, offset, size):
buffer = (ctypes.c_char*size)()
read = ctypes.c_ulong(0)
result = ctypes.windll.kernel32.ReadProcessMemory(
self.handle,
ctypes.c_void_p(self.address_start+offset),
ctypes.pointer(buffer),
size,
ctypes.pointer(read))
return result and read == size, buffer
def write_ram(self, offset, data):
buffer = (ctypes.c_char*len(data))(*data)
read = ctypes.c_ulong(0)
result = ctypes.windll.kernel32.WriteProcessMemory(
self.handle,
ctypes.c_void_p(self.address_start+offset),
ctypes.pointer(buffer),
len(data),
ctypes.pointer(read))
return result and read == len(data)
"""with open("ctypes.txt", "w") as f:
for a in ctypes.__dict__:
f.write(str(a))
f.write("\n")"""
if __name__ == "__main__":
dolphin = Dolphin()
if dolphin.find_dolphin():
print("Found Dolphin!")
else:
print("Didn't find Dolphin")
print(dolphin.pid, dolphin.handle)
if dolphin.get_emu_info():
print("We found MEM1 and/or MEM2!", dolphin.address_start, dolphin.mem2_start)
else:
print("We didn't find it...")
print(dolphin.write_ram(0, b"GMS"))
success, result = dolphin.read_ram(0, 8)
print(result[0:8])
print(dolphin.write_ram(0, b"AWA"))
success, result = dolphin.read_ram(0, 8)
print(result[0:8])

2
run.bat Normal file
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python memtest.py
pause