Added Panasonic BIOS Update Extractor

Parses Panasonic BIOS Update executables and extracts their SPI/BIOS image.

Panasonic BIOS Update Extractor/Panasonic_BIOS_Extract.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+
+"""
+Panasonic BIOS Extract
+Panasonic BIOS Update Extractor
+Copyright (C) 2018 Plato Mavropoulos
+"""
+
+print('Panasonic BIOS Update Extractor v1.0')
+
+import os
+import sys
+import shutil
+import pefile
+import subprocess
+
+if len(sys.argv) >= 2 :
+	# Drag & Drop or CLI
+	panasonic = sys.argv[1:]
+else :
+	# Folder path
+	panasonic = []
+	in_path = input('\nEnter the full folder path: ')
+	print('\nWorking...')
+	for root, dirs, files in os.walk(in_path):
+		for name in files :
+			panasonic.append(os.path.join(root, name))
+
+for input_file in panasonic :
+	file_path = os.path.abspath(input_file)
+	file_name = os.path.basename(input_file)
+	file_dir = os.path.dirname(file_path)
+	file_ext = os.path.splitext(file_path)[1]
+	
+	# Create output folder
+	extr_path = os.path.join(os.getcwd(), 'RCDATA')
+	if os.path.exists(extr_path) : shutil.rmtree(extr_path)
+	os.makedirs(extr_path)
+	
+	max_size = 0
+	max_file = None
+	pe = pefile.PE(input_file) # Analyze Portable Executable (PE)
+	for entry in pe.DIRECTORY_ENTRY_RESOURCE.entries :
+		# Parse Resource Data directories only
+		if entry.struct.name == 'IMAGE_RESOURCE_DIRECTORY_ENTRY' and entry.struct.Id == 10 : # RCDATA ID = 10
+			for resource in entry.directory.entries :
+				offset = resource.directory.entries[0].data.struct.OffsetToData
+				size = resource.directory.entries[0].data.struct.Size
+				data = pe.get_data(offset, size)
+				file = os.path.join(extr_path, '%X_%X.bin' % (offset, size))
+				with open(file, 'wb') as out_file : out_file.write(data)
+				
+				# Remember largest resource (SPI/BIOS)
+				if size > max_size :
+					max_size = size
+					max_file = file
+	
+	if not max_file :
+		print('\nError: No Panasonic BIOS Update at %s!' % file_name)
+		shutil.rmtree(extr_path) # Remove temporary folder
+		continue # Next input file
+	
+	# Call Rustam Abdullaev's unpack_lznt1 to extract the LZNT1-compressed SPI/BIOS resource at 0x8 onwards
+	try :
+		subprocess.run(['unpack_lznt1', max_file, os.path.join(file_dir, file_name[:-4] + '.bin'), '8'], check = True, stdout = subprocess.DEVNULL)
+		print('\nExtracted %s via unpack_lznt1' % (file_name[:-4] + '.bin'))
+	except :
+		print('\nError: Could not extract %s via unpack_lznt1!' % (file_name[:-4] + '.bin'))
+		print('       Make sure that "unpack_lznt1.exe" executable exists!')
+		
+	shutil.rmtree(extr_path) # Remove temporary folder
+
+else :
+	input('\nDone!')

README.md

@@ -172,6 +172,56 @@ PyInstaller can build/freeze/compile the utility at all three supported platform
 
 At dist folder you should find the final utility executable
 
+## **Panasonic BIOS Update Extractor**
+
+#### **Description**
+
+Parses Panasonic BIOS Update executables and extracts their SPI/BIOS image. The utility automatically uses [Rustam Abdullaev's unpack_lznt1](https://github.com/rustyx/unpack_lznt1) tool in order to decompress the initially Microsoft LZNT1 compressed resource data.
+
+#### **Usage**
+
+You can either Drag & Drop or manually enter the full path of a folder containing Panasonic BIOS Update executables.
+
+#### **Download**
+
+An already built/frozen/compiled Windows binary is provided by me. Thus, **you don't need to manually build/freeze/compile it**. Instead, download the latest version from the [Releases](https://github.com/platomav/BIOSUtilities/releases) tab. To extract the already built/frozen/compiled archive, you need to use programs which support RAR5 compression. Note that you need to manually apply any prerequisites.
+
+#### **Compatibility**
+
+Should work at all Windows operating systems which have Python 3.6 support. Windows users who plan to use the already built/frozen/compiled binary must make sure that they have the latest Windows Updates installed which include all required "Universal C Runtime (CRT)" libraries.
+
+#### **Prerequisites**
+
+To run the python script, you need to have the following 3rd party Python modules installed:
+
+* [PEfile](https://pypi.python.org/pypi/pefile/)
+
+To run the python script or its built/frozen/compiled binary, you need to additionally have the following 3rd party tool at the same directory:
+
+* [unpack_lznt1](https://github.com/rustyx/unpack_lznt1) (i.e. unpack_lznt1.exe)
+
+#### **Build/Freeze/Compile with PyInstaller**
+
+PyInstaller can build/freeze/compile the utility at Windows, it is simple to run and gets updated often.
+
+1. Make sure Python 3.6.0 or newer is installed:
+
+> python --version
+
+2. Use pip to install PyInstaller:
+
+> pip3 install pyinstaller
+
+3. Use pip to install PEfile:
+
+> pip3 install pefile
+
+4. Build/Freeze/Compile:
+
+> pyinstaller --noupx --onefile Panasonic_BIOS_Extract.py
+
+At dist folder you should find the final utility executable
+
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