sms/sup-dolphin-memory-lib
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Merge pull request #1 from NerduMiner/main

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Add Linux Support
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RenolY2 2021-09-17 07:54:04 +02:00 committed by GitHub
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187
memtest_lin.py Normal file
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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])

4
run.sh Executable file
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#!/bin/bash
echo "dolphin-memory-lib requires sudo permission to read and write to the emulator process memory."
sudo python memtest_lin.py
read -n1 -r