import ctypes import struct import os import sys from subprocess import check_output from ctypes import sizeof, addressof, POINTER, pointer # Various Linux structs needed for operation class iovec(ctypes.Structure): _fields_ = [("iov_base",ctypes.c_void_p),("iov_len",ctypes.c_size_t)] libc = ctypes.cdll.LoadLibrary("libc.so.6") vm = libc.process_vm_readv vm.argtypes = [ctypes.c_int, POINTER(iovec), ctypes.c_ulong, POINTER(iovec), ctypes.c_ulong, ctypes.c_ulong] vmwrite = libc.process_vm_writev vmwrite.argtypes = [ctypes.c_int, POINTER(iovec), ctypes.c_ulong, POINTER(iovec), ctypes.c_ulong, ctypes.c_ulong] # The following code is a port of aldelaro5's Dolphin memory access methods # for Linux 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): try: if check_output(["pidof", "dolphin-emu"]) != '\n': self.pid = int(check_output(["pidof", "dolphin-emu"])) if check_output(["pidof", "dolphin-emu-qt2"]) != '\n': self.pid = int(check_output(["pidof", "dolphin-emu-qt2"])) if check_output(["pidof", "dolphin-emu-wx"]) != '\n': self.pid = int(check_output(["pidof", "dolphin-emu-wx"])) except Exception: #subprocess.CalledProcessError # Do nothing because self.pid cant be modified until a successful run of pidof pass if self.pid == -1: return False return True def get_emu_info(self): MEM1_found = False try: maps_file = open("/proc/{}/maps".format(self.pid), 'r') except IOError: print("Cant open maps for process {}".format(self.pid)) heap_info = None for line in maps_file: foundDevShmDolphin = False if '/dev/shm/dolphinmem' in line: heap_info = line.split() if '/dev/shm/dolphin-emu' in line: heap_info = line.split() if heap_info is None: continue else: offset = 0 offset_str = "0x" + str(heap_info[2]) offset = int(offset_str, 16) if offset != 0 and offset != 0x2000000: continue first_address = 0 second_address = 0 index_dash = heap_info[0].find('-') first_address_str = "0x" + str(heap_info[0][: index_dash]) second_address_str = "0x" + str(heap_info[0][(index_dash + 1):]) first_address = int(first_address_str, 16) second_address = int(second_address_str, 16) if (second_address - first_address) == 0x4000000 and offset == 0x2000000: self.mem2_start = first_address self.mem2_exists = True if (second_address - first_address) == 0x2000000 and offset == 0x0: self.address_start = first_address if self.address_start == 0: return False return True def read_ram(self, offset, size): buffer_ = (ctypes.c_char*size)() nread = ctypes.c_size_t local = (iovec*1)() remote = (iovec*1)() local[0].iov_base = ctypes.addressof(buffer_) local[0].iov_len = size remote[0].iov_base = ctypes.c_void_p(self.address_start + offset) remote[0].iov_len = size nread = vm(self.pid, local, 1, remote, 1, 0) if nread != size: return False, buffer_ return True, buffer_ def write_ram(self, offset, data): buffer_ = (ctypes.c_char*len(data))(*data) nwrote = ctypes.c_size_t local = (iovec*1)() remote = (iovec*1)() local[0].iov_base = ctypes.addressof(buffer_) local[0].iov_len = len(data) remote[0].iov_base = ctypes.c_void_p(self.address_start + offset) remote[0].iov_len = len(data) nwrote = vmwrite(self.pid, local, 1, remote, 1, 0) if nwrote != len(data): return False return True def read_uint32(self, addr): assert addr >= 0x80000000 success, value = self.read_ram(addr-0x80000000, 4) if success: return struct.unpack(">I", value)[0] else: return None def read_float(self, addr): assert addr >= 0x80000000 success, value = self.read_ram(addr - 0x80000000, 4) if success: return struct.unpack(">f", value)[0] else: return None def write_float(self, addr, val): assert addr >= 0x80000000 return self.write_ram(addr - 0x80000000, struct.pack(">f", val)) if __name__ == "__main__": dolphin = Dolphin() if dolphin.find_dolphin(): print("Found Dolphin! ") else: print("Didn't find Dolphin") print(dolphin.pid) 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])