Browse Source

First upload

master
Ivan Holmes 5 years ago
commit
616238aaad
  1. 37
      auto.py
  2. 78
      clishared.py
  3. 19
      patchbios.py
  4. 8
      patches.py
  5. 31
      readbios.py
  6. 63
      romtools.py
  7. 21
      writebios.py

37
auto.py

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from pathlib import Path
from clishared import cli_connect_rom, cli_read_rom, cli_patch_rom, cli_write_rom, cli_choose_patches
print("ThinkPad X230 Automatic Firmware Extract and Patch v1")
project_name = input("What would you like to name your project? ")
project_name = project_name.replace("\\", "") # Remove backslashes so I can drag and drop folders
project_path = Path(project_name).resolve()
if project_path.exists():
if project_path.is_file():
raise FileExistsError(f"Cannot create project folder {project_path}, a file already exists here.")
elif project_path.is_dir():
response = input("Folder already exists at this location. Proceed and risk overwriting existing files? (y/N): ")
if not response or (response.strip()[0] not in ['y', 'Y']):
raise FileExistsError(f"Cannot create project folder {project_path}, a directory already exists here.")
else:
project_path.mkdir()
clean_path = project_path / "clean"
if not clean_path.exists():
clean_path.mkdir()
patched_path = project_path / "patched"
if not patched_path.exists():
patched_path.mkdir()
patches = cli_choose_patches()
cli_connect_rom("top")
cli_read_rom("top", clean_path)
cli_patch_rom(patches, clean_path, patched_path)
cli_write_rom("top", patched_path)
print("All done.")

78
clishared.py

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from pathlib import Path
import filecmp
from romtools import *
def cli_join_rom(clean_path):
print("Joining dumps in to full firmware ROM... ", end="")
with open(clean_path / "bottom.bin", "rb") as bottom, open(clean_path / "top.bin", "rb") as top, open(clean_path / "clean.rom", "wb+") as rom:
rom.write(bottom.read() + top.read())
print("Done.")
def cli_split_rom(patched_path):
print("Splitting full rom in to images for each chip... ", end="")
with open(patched_path / "bottom.bin", "wb+") as bottom, open(patched_path / "top.bin", "wb+") as top, open(patched_path / "patched.rom", "rb") as rom:
rom_array = rom.read()
bottom.write(rom_array[:0x800000])
top.write(rom_array[0x800000:])
print("Done.")
def cli_connect_rom(chip_loc):
input(f"Please connect programming clip to {chip_loc} flash chip. Press Enter when done...")
cli_reconnect_rom(chip_loc)
def cli_reconnect_rom(chip_loc):
print("Checking if ROM is connected... ", end="")
try:
check_rom(chip_loc)
print("ROM is reachable.")
except:
response = input("ROM is not reachable. Try again? (Y/q): ")
if response in ['q', 'Q']:
raise ROMError("Could not connect to ROM. User elected to quit.")
else:
cli_reconnect_rom(chip_loc)
def cli_read_rom(chip_loc, clean_path, verify=True):
files = [chip_loc + ".bin", chip_loc + "_2.bin"] if verify else [chip_loc + ".bin"]
for count, file_name in enumerate(files):
print(f"Reading {chip_loc} ROM, pass {count+1} of {len(files)}... ", end="", flush=True)
read_rom(chip_loc, clean_path, file_name)
print("Success.")
if verify:
print("Comparing ROM files... ", end="")
if filecmp.cmp(clean_path / files[0], clean_path / files[1]):
print("Files match.")
else:
raise ROMError("ROM files do not match. Read the log and try again.")
else:
print("ROM file will not be verified, proceed at your own risk!")
print(f"{chip_loc.capitalize()} ROM read successfully.")
def cli_write_rom(chip_loc, patched_path, verify=True):
file_name = chip_loc + '_patched.bin'
print(f"Writing {chip_loc} ROM (takes a while)... ", end="", flush=True)
write_rom(chip_loc, patched_path, file_name)
print("Success.")
print(f"{chip_loc.capitalize()} ROM written successfully.")
def cli_choose_patches():
which_patches = input("Patch (W)LAN whitelist, (A)dvanced menu or (B)oth? ")
if which_patches.strip()[0] in ['w', 'W']:
patches = ["wifi"]
elif which_patches.strip()[0] in ['a', 'A']:
patches = ["advanced"]
elif which_patches.strip()[0] in ['b', 'B']:
patches = ["wifi", "advanced"]
else:
raise ValueError("Selection invalid.")
return patches
def cli_patch_rom(patches, clean_path, patched_path):
patch_rom(patches, clean_path / "top.bin", patched_path / "top_patched.bin")
print("ROM patched successfully.")

19
patchbios.py

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import os, subprocess
from pathlib import Path
from clishared import cli_patch_rom, cli_choose_patches
print("ThinkPad X230 Bios Patcher v1")
project_name = input("Where is your project folder? ")
project_name = project_name.replace("\\", "") # Remove backslashes so I can drag and drop folders
project_path = Path(project_name).resolve()
patched_path = project_path / "patched"
clean_path = project_path / "clean"
if not patched_path.exists():
patched_path.mkdir()
patches = cli_choose_patches()
cli_patch_rom(patches, clean_path, patched_path)

8
patches.py

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PATCH_DATA = {"wifi": """# Remove WLAN whitelist
79E0EDD7-9D1D-4F41-AE1A-F896169E5216 10 O:C83:90E9
79E0EDD7-9D1D-4F41-AE1A-F896169E5216 10 O:CD9:00
79E0EDD7-9D1D-4F41-AE1A-F896169E5216 10 O:CEE:EB
""",
"advanced": """# Replace Date tab with Advanced tab
32442D09-1D11-4E27-8AAB-90FE6ACB0489 10 P:04320b483cc2e14abb16a73fadda475f:778b1d826d24964e8e103467d56ab1ba
"""}

31
readbios.py

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from pathlib import Path
from clishared import cli_join_rom, cli_read_rom
print("ThinkPad X230 Bios Dumper v1")
project_name = input("What would you like to name your project? ")
project_path = Path(project_name).resolve()
if project_path.exists():
if project_path.is_file():
raise FileExistsError(f"Cannot create project folder {project_path}, a file already exists here.")
elif project_path.is_dir():
response = input("Folder already exists at this location. Proceed and risk overwriting existing files? (y/N): ")
if not response or (response.strip()[0] not in ['y', 'Y']):
raise FileExistsError(f"Cannot create project folder {project_path}, a directory already exists here.")
else:
project_path.mkdir()
clean_path = project_path / "clean"
if not clean_path.exists():
clean_path.mkdir()
cli_read_rom("bottom", clean_path)
# Bell to remind user to move clip
print("\a", end="")
cli_read_rom("top", clean_path)
cli_join_rom(clean_path)
print("All done.")

63
romtools.py

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import subprocess
from pathlib import Path
from patches import PATCH_DATA
TOP_ROM_TYPE = "MX25L3206E/MX25L3208E"
BOTTOM_ROM_TYPE = "MX25L6406E/MX25L6408E"
PROGRAMMER = "ch341a_spi"
UEFIPATCH_LOCATION = "./UEFIPatch_0.28.0_mac/UEFIPatch"
LOG_FILE_NAME = "x230patch.log"
class ROMError(Exception):
pass
def log(text):
with open(LOG_FILE_NAME, 'a') as f:
f.write(text)
def check_rom(chip_loc):
if chip_loc == "top":
chip = TOP_ROM_TYPE
elif chip_loc == "bottom":
chip = BOTTOM_ROM_TYPE
fr = subprocess.run(["flashrom", "-p", PROGRAMMER, "-c", chip], capture_output=True)
log(fr.stdout.decode('ascii'))
if fr.returncode != 0:
raise ROMError("ROM not found.")
def read_rom(chip_loc, save_dir, file_name):
if chip_loc == "top":
chip = TOP_ROM_TYPE
elif chip_loc == "bottom":
chip = BOTTOM_ROM_TYPE
fr = subprocess.run(["flashrom", "-p", PROGRAMMER, "-c", chip, "-r", file_name], cwd=save_dir, capture_output=True)
log(fr.stdout.decode('ascii'))
if fr.returncode != 0:
raise ROMError
def write_rom(chip_loc, open_dir, file_name):
if chip_loc == "top":
chip = TOP_ROM_TYPE
elif chip_loc == "bottom":
chip = BOTTOM_ROM_TYPE
fr = subprocess.run(["flashrom", "-p", PROGRAMMER, "-c", chip, "-w", file_name], cwd=open_dir, capture_output=True)
log(fr.stdout.decode('ascii'))
if fr.returncode != 0:
raise ROMError
def patch_rom(patches, open_path, save_path):
patches_path = save_path.parent / "patches.txt"
with open(patches_path, 'w') as patches_file:
for patch in patches:
patches_file.write(PATCH_DATA[patch])
up = subprocess.run([UEFIPATCH_LOCATION, open_path, patches_path, "-o", save_path], capture_output=True)
log(up.stdout.decode('ascii'))
if up.returncode != 0:
raise ROMError("Patching failed.")

21
writebios.py

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import os, subprocess
from pathlib import Path
from clishared import cli_split_rom, cli_write_rom
print("ThinkPad X230 Bios Writer v1")
project_name = input("Where is your project folder? ")
project_path = Path(project_name).resolve()
patched_path = project_path / "patched"
clean_path = project_path / "clean"
cli_split_rom(patched_path)
cli_write_rom("bottom", patched_path)
# Bell to remind user to move clip
print("\a", end="")
cli_write_rom("top", patched_path)
print("All done.")
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