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https://github.com/platomav/BIOSUtilities.git
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Dell HDR Module Extractor v1.0 Apple EFI Sucatalog Link Grabber v1.0 Apple EFI File Renamer v1.0 Apple EFI IM4P Splitter v1.0 Award BIOS Module Extractor v1.0
77 lines
No EOL
2.3 KiB
Python
77 lines
No EOL
2.3 KiB
Python
#!/usr/bin/env python3
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"""
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Dell HDR Extract
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Dell HDR Module Extractor
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Copyright (C) 2018 Plato Mavropoulos
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Inspired from https://forums.mydigitallife.net/threads/i-present-you-a-tool-to-decompress-dell-uefi-bios.44785/ by JimboBobB
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"""
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print('Dell HDR Module Extractor v1.0\n')
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import os
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import re
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import sys
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import zlib
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import subprocess
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if len(sys.argv) >= 2 :
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# Drag & Drop or CLI
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hdr_exec = sys.argv[1:]
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else :
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# Folder path
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hdr_exec = []
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in_path = input('\nEnter the full folder path: ')
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for root, dirs, files in os.walk(in_path):
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for name in files :
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hdr_exec.append(os.path.join(root, name))
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for input_file in hdr_exec :
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input_name,input_extension = os.path.splitext(os.path.basename(input_file))
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print('\nFile: %s%s' % (input_name, input_extension))
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with open(input_file, 'rb') as in_file : bios_data = in_file.read()
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# Compressed Dell HDR pattern followed by the zlib header of 0x789C
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pat_hdr = re.compile(br'\xAA\xEE\xAA\x76\x1B\xEC\xBB\x20\xF1\xE6\x51.\x78\x9C', re.DOTALL)
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match_hdr = pat_hdr.search(bios_data)
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# Check if Compressed Dell HDR pattern was found
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if not match_hdr :
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print('\n Error: No Dell HDR found at %s%s!' % (input_name, input_extension))
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continue # Next input file
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# Detected Compressed Dell HDR pattern
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while match_hdr :
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# Store the compressed zlib data size from the proceeding 4 bytes of the Dell HDR pattern
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compressed_size = int.from_bytes(bios_data[match_hdr.start() - 0x4:match_hdr.start()], 'little')
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# Store compressed zlib data
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compressed_data = bios_data[match_hdr.start() + 0xC:match_hdr.start() + 0xC + compressed_size]
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# Decompress zlib payload
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bios_data = zlib.decompress(compressed_data)
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# Scan for nested zlib data streams
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match_hdr = pat_hdr.search(bios_data)
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else :
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output_name = input_name + '.hdr'
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with open(output_name, 'wb') as hdr_file : hdr_file.write(bios_data)
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print('\n Decompressed %s%s via Python' % (input_name, input_extension))
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# Call LongSoft's PFSExtractor RS to extract the Dell HDR container
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try :
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subprocess.run(['PFSExtractor', output_name], check = True, stdout = subprocess.DEVNULL)
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if os.path.isfile(output_name) : os.remove(output_name)
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print(' Extracted %s via PFSExtractor' % output_name)
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except :
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print(' Error: Could not extract %s via PFSExtractor!' % output_name)
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else :
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input('\nDone!') |