Fujitsu UPC BIOS Extractor v1.0

Fujitsu UPC BIOS Extractor v1.0

Parses Fujitsu UPC images and extracts their Tiano compressed SPI/BIOS firmware component. The output comprises only a final firmware component which is directly usable by end users.

Fujitsu SFX BIOS Extractor v2.1

Small rebranding

Fujitsu UPC BIOS Extractor/Fujitsu_UPC_Extract.py

@@ -0,0 +1,108 @@
+#!/usr/bin/env python3
+#coding=utf-8
+
+"""
+Fujitsu UPC Extract
+Fujitsu UPC BIOS Extractor
+Copyright (C) 2021 Plato Mavropoulos
+"""
+
+title = 'Fujitsu UPC BIOS Extractor v1.0'
+
+print('\n' + title) # Print script title
+
+import sys
+
+# Detect Python version
+sys_ver = sys.version_info
+if sys_ver < (3,7) :
+	sys.stdout.write('\n\nError: Python >= 3.7 required, not %d.%d!\n' % (sys_ver[0], sys_ver[1]))
+	(raw_input if sys_ver[0] <= 2 else input)('\nPress enter to exit') # pylint: disable=E0602
+	sys.exit(1)
+
+import os
+import ctypes
+import argparse
+import traceback
+import subprocess
+
+# Pause after any unexpected Python exception
+# https://stackoverflow.com/a/781074 by Torsten Marek
+def show_exception_and_exit(exc_type, exc_value, tb) :
+	if exc_type is KeyboardInterrupt :
+		print('\n')
+	else :
+		print('\nError: %s crashed, please report the following:\n' % title)
+		traceback.print_exception(exc_type, exc_value, tb)
+		input('\nPress enter to exit')
+	
+	sys.exit(1)
+
+# Set pause-able Python exception handler
+sys.excepthook = show_exception_and_exit
+
+# Set console/shell window title
+user_os = sys.platform
+if user_os == 'win32' : ctypes.windll.kernel32.SetConsoleTitleW(title)
+elif user_os.startswith('linux') or user_os == 'darwin' or user_os.find('bsd') != -1 : sys.stdout.write('\x1b]2;' + title + '\x07')
+
+# Set argparse Arguments
+upc_parser = argparse.ArgumentParser()
+upc_parser.add_argument('upc', type=argparse.FileType('r'), nargs='*')
+upc_parser.add_argument('-p', '--path', help='parse files within given folder', type=str)
+upc_params = upc_parser.parse_args()
+
+# Get all files within path
+def get_files(path) :
+	inputs = []
+	
+	for root, _, files in os.walk(path):
+		for name in files :
+			inputs.append(os.path.join(root, name))
+	
+	return inputs
+
+if len(sys.argv) >= 2 :
+	if bool(upc_params.path) :
+		upc_exec = get_files(upc_params.path) # CLI with --path
+	else :
+		upc_exec = []
+		for executable in upc_params.upc :
+			upc_exec.append(executable.name) # Drag & Drop
+else :
+	in_path = input('\nEnter the full folder path: ')
+	upc_exec = get_files(in_path) # Direct Run
+
+# Process each input Fujitsu UPC BIOS image
+for input_file in upc_exec :
+	input_name,input_extension = os.path.splitext(os.path.basename(input_file))
+	
+	print('\n*** %s%s' % (input_name, input_extension))
+	
+	# Check if input file exists
+	if not os.path.isfile(input_file) :
+		print('\n    Error: This input file does not exist!')
+		continue # Next input file
+	
+	with open(input_file, 'rb') as in_file : upc_data = in_file.read()
+	
+	if input_extension.upper() != '.UPC' or int.from_bytes(upc_data[0x0:0x4], 'little') + 0x8 != len(upc_data) :
+		print('\n    Error: This is not a Fujitsu UPC BIOS image!')
+		continue # Next input file
+	
+	output_file = input_file[:-4] + '.bin' # Decompressed filename
+	
+	# EFI/Tiano Decompression
+	try :
+		subprocess.run(['TianoCompress', '-d', input_file, '-o', output_file, '--uefi', '-q'], check = True, stdout = subprocess.DEVNULL)
+		
+		if os.path.getsize(output_file) != int.from_bytes(upc_data[0x4:0x8], 'little') : raise Exception('EFI_DECOMP_ERROR')
+	except :
+		print('\n    Error: Could not extract input file via TianoCompress!')
+		input('           Make sure that "TianoCompress" executable exists!')
+	
+	print('\n    Extracted Fujitsu UPC BIOS image!')
+
+input('\nDone!')
+
+sys.exit(0)