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SMS-CM-gap/memorylib.py
2021-11-18 19:44:40 +09:00

253 lines
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8.5 KiB
Python

##################################################
# This file is a copy from [QbeRoot/sms-livecol] #
# (https://github.com/QbeRoot/sms-livecol) #
##################################################
import ctypes
import struct
from struct import pack, unpack
from ctypes import wintypes, sizeof, addressof, POINTER, pointer
from ctypes.wintypes import DWORD, ULONG, LONG, WORD
from multiprocessing import shared_memory
# 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 find_dolphin function is based on WindowsDolphinProcess::findPID() from
# aldelaro5's Dolphin memory engine
# 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.memory = None
def reset(self):
self.pid = -1
self.memory = None
def find_dolphin(self, skip_pids=[]):
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
if ctypes.windll.kernel32.Process32First(snapshot, pointer(entry)):
if entry.th32ProcessID not in skip_pids and 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.th32ProcessID in skip_pids:
continue
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
return True
def init_shared_memory(self):
try:
self.memory = shared_memory.SharedMemory('dolphin-emu.'+str(self.pid))
return True
except FileNotFoundError:
return False
def read_ram(self, offset, size):
return self.memory.buf[offset:offset+size]
def write_ram(self, offset, data):
self.memory.buf[offset:offset+len(data)] = data
def read_uint8(self, addr):
assert addr >= 0x80000000
value = self.read_ram(addr-0x80000000, 1)
return unpack(">B", value)[0]
def write_uint8(self, addr, val):
assert addr >= 0x80000000
return self.write_ram(addr - 0x80000000, pack(">B", val))
def read_uint16(self, addr):
assert addr >= 0x80000000
value = self.read_ram(addr-0x80000000, 2)
return unpack(">H", value)[0]
def write_uint16(self, addr, val):
assert addr >= 0x80000000
return self.write_ram(addr - 0x80000000, pack(">H", val))
def read_uint32(self, addr):
assert addr >= 0x80000000
value = self.read_ram(addr-0x80000000, 4)
return unpack(">I", value)[0]
def write_uint32(self, addr, val):
assert addr >= 0x80000000
return self.write_ram(addr - 0x80000000, pack(">I", val))
def read_float(self, addr):
assert addr >= 0x80000000
value = self.read_ram(addr - 0x80000000, 4)
return unpack(">f", value)[0]
def write_float(self, addr, val):
assert addr >= 0x80000000
return self.write_ram(addr - 0x80000000, pack(">f", val))
"""with open("ctypes.txt", "w") as f:
for a in ctypes.__dict__:
f.write(str(a))
f.write("\n")"""
if __name__ == "__main__":
dolphin = Dolphin()
import multiprocessing
if dolphin.find_dolphin():
print("Found Dolphin!")
else:
print("Didn't find Dolphin")
print(dolphin.pid)
dolphin.init_shared_memory()
if dolphin.init_shared_memory():
print("We found MEM1 and/or MEM2!")
else:
print("We didn't find it...")
import random
randint = random.randint
from timeit import default_timer
start = default_timer()
print("Testing Shared Memory Method")
start = default_timer()
count = 500000
for i in range(count):
value = randint(0, 2**32-1)
dolphin.write_uint32(0x80000000, value)
result = dolphin.read_uint32(0x80000000)
assert result == value
diff = default_timer()-start
print(count/diff, "per sec")
print("time: ", diff)