Çözüldü TP-Link VC220-G3u Firmware Dump OOB Ayıklama

#!/usr/bin/env python3

import sys
import os

# -------------------------------------------------------------------
# !! Configuration !!
# Configure PAGE_SIZE and OOB_SIZE according to your NAND flash
#
# Yaygın kombinasyonlar:
# PAGE_SIZE = 2048, OOB_SIZE = 64
# PAGE_SIZE = 4096, OOB_SIZE = 128
# PAGE_SIZE = 4096, OOB_SIZE = 218
# PAGE_SIZE = 512,  OOB_SIZE = 16

PAGE_SIZE = 2048
OOB_SIZE = 64
# -------------------------------------------------------------------

BLOCK_SIZE = PAGE_SIZE + OOB_SIZE

def strip_ecc(input_file, output_file):
    print(f"Input File: {input_file}")
    print(f"Output File: {output_file}")
    print(f"Page Size: {PAGE_SIZE} byte")
    print(f"OOB Size (ECC):  {OOB_SIZE} byte")
    print(f"Total Block:       {BLOCK_SIZE} byte")
    print("Striping Started...")

    read_count = 0
    write_count = 0

    try:
        with open(input_file, 'rb') as f_in, open(output_file, 'wb') as f_out:
            while True:
                chunk = f_in.read(BLOCK_SIZE)
               
                if not chunk:
                    break
               
                read_count += len(chunk)

                data_to_write = chunk[:PAGE_SIZE]
               
                if len(chunk) < PAGE_SIZE:
                    data_to_write = chunk
               
                f_out.write(data_to_write)
                write_count += len(data_to_write)

    except IOError as e:
        print(f"Error: {e}")
        return
    except KeyboardInterrupt:
        print("\nCanceled.")
        return

    print("\nStriping Done...")
    print(f"Read total byte: {read_count}")
    print(f"Writen striped byte: {write_count}")


if __name__ == "__main__":
    if len(sys.argv) != 3:
        print(f"Usage: python3 {sys.argv[0]} <input_file.bin> <output_file.bin>")
        sys.exit(1)
   
    strip_ecc(sys.argv[1], sys.argv[2])