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Code Issues Projects Releases Packages Wiki Activity

Added AMI PFAT RSA 3K signed blocks support

Browse source 
Added AMI PFAT nested detection at each file

Added Award BIOS payload naming at each file

Switched Panasonic BIOS LZNT1 external library

Improved Panasonic LZNT1 detection and length

Improved Dell PFS code structure and fixed bugs

Improved code exception handling (raise, catch)

Improved code definitions (PEP8, docs, types)

Fixed some arguments missing from help screens
This commit is contained in:
Plato Mavropoulos 2024-04-24 01:22:53 +03:00
parent 03ae0cf070
commit d85a7f82dc
37 changed files with 2897 additions and 2174 deletions

72
Award_BIOS_Extract.py
View file

@ -1,74 +1,84 @@
#!/usr/bin/env python3
#coding=utf-8
#!/usr/bin/env python3 -B
# coding=utf-8
"""
Award BIOS Extract
Award BIOS Module Extractor
Copyright (C) 2018-2022 Plato Mavropoulos
Copyright (C) 2018-2024 Plato Mavropoulos
"""
TITLE = 'Award BIOS Module Extractor v2.0_a5'
import os
import sys
# Stop __pycache__ generation
sys.dont_write_bytecode = True
import stat
from common.comp_szip import szip_decompress
from common.path_ops import make_dirs, safe_name, get_extract_path
from common.path_ops import get_extract_path, make_dirs, safe_name
from common.patterns import PAT_AWARD_LZH
from common.system import printer
from common.templates import BIOSUtility
from common.text_ops import file_to_bytes
# Check if input is Award BIOS image
TITLE = 'Award BIOS Module Extractor v3.0'
def is_award_bios(in_file):
""" Check if input is Award BIOS image """
in_buffer = file_to_bytes(in_file)
return bool(PAT_AWARD_LZH.search(in_buffer))
# Parse & Extract Award BIOS image
def award_bios_extract(input_file, extract_path, padding=0):
""" Parse & Extract Award BIOS image """
input_buffer = file_to_bytes(input_file)
make_dirs(extract_path, delete=True)
for lzh_match in PAT_AWARD_LZH.finditer(input_buffer):
lzh_type = lzh_match.group(0).decode('utf-8')
lzh_text = f'LZH-{lzh_type.strip("-").upper()}'
lzh_bgn = lzh_match.start()
mod_bgn = lzh_bgn - 0x2
hdr_len = input_buffer[mod_bgn]
mod_len = int.from_bytes(input_buffer[mod_bgn + 0x7:mod_bgn + 0xB], 'little')
mod_end = lzh_bgn + hdr_len + mod_len
mod_bin = input_buffer[mod_bgn:mod_end]
tag_bgn = mod_bgn + 0x16
tag_end = tag_bgn + input_buffer[mod_bgn + 0x15]
tag_txt = input_buffer[tag_bgn:tag_end].decode('utf-8','ignore')
if len(mod_bin) != 0x2 + hdr_len + mod_len:
printer(f'Error: Skipped incomplete LZH stream at 0x{mod_bgn:X}!', padding, False)
continue
tag_txt = safe_name(mod_bin[0x16:0x16 + mod_bin[0x15]].decode('utf-8', 'ignore').strip())
printer(f'{lzh_text} > {tag_txt} [0x{mod_bgn:06X}-0x{mod_end:06X}]', padding)
mod_path = os.path.join(extract_path, safe_name(tag_txt))
mod_path = os.path.join(extract_path, tag_txt)
lzh_path = f'{mod_path}.lzh'
with open(lzh_path, 'wb') as lzh_file:
lzh_file.write(mod_bin) # Store LZH archive
lzh_file.write(mod_bin) # Store LZH archive
# 7-Zip returns critical exit code (i.e. 2) if LZH CRC is wrong, do not check result
szip_decompress(lzh_path, extract_path, lzh_text, padding + 4, check=False)
# Manually check if 7-Zip extracted LZH due to its CRC check issue
if os.path.isfile(mod_path):
os.remove(lzh_path) # Successful extraction, delete LZH archive
os.chmod(lzh_path, stat.S_IWRITE)
os.remove(lzh_path) # Successful extraction, delete LZH archive
# Extract any nested LZH archives
if is_award_bios(mod_path):
# Recursively extract nested Award BIOS modules
award_bios_extract(mod_path, get_extract_path(mod_path), padding + 8)
if __name__ == '__main__':
BIOSUtility(TITLE, is_award_bios, award_bios_extract).run_utility()
BIOSUtility(title=TITLE, check=is_award_bios, main=award_bios_extract).run_utility()