mirror of
https://git.proxmox.com/git/fwupd
synced 2025-05-29 16:38:47 +00:00
56 lines
1.5 KiB
Python
Executable File
56 lines
1.5 KiB
Python
Executable File
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2020 Richard Hughes <richard@hughsie.com>
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#
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# SPDX-License-Identifier: LGPL-2.1+
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import struct
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import zlib
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import argparse
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def main(bin_fn, dfu_fn, pad, vid, pid, rev):
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# read binary file
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with open(bin_fn, "rb") as f:
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blob = f.read()
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# pad blob to a specific size
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if pad:
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while len(blob) < int(pad, 16):
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blob += b"\0"
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# create DFU footer with checksum
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blob += struct.pack(
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"<HHHH3sB",
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int(rev, 16), # version
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int(pid, 16), # PID
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int(vid, 16), # VID
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0x0100, # DFU version
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b"UFD", # signature
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0x10,
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) # hdrlen
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crc32 = zlib.crc32(blob) ^ 0xFFFFFFFF
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blob += struct.pack("<L", crc32)
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# write binary file
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with open(dfu_fn, "wb") as f:
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f.write(blob)
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if __name__ == "__main__":
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# parse args
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parser = argparse.ArgumentParser(description="Add DFU footer on firmware")
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parser.add_argument("--bin", help="Path to the .bin file", required=True)
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parser.add_argument("--dfu", help="Output DFU file path", required=True)
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parser.add_argument(
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"--pad", help="Pad to a specific size, e.g. 0x4000", default=None
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)
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parser.add_argument("--vid", help="Vendor ID, e.g. 0x273f", required=True)
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parser.add_argument("--pid", help="Product ID, e.g. 0x1002", required=True)
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parser.add_argument("--rev", help="Revision, e.g. 0x1000", required=True)
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args = parser.parse_args()
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main(args.bin, args.dfu, args.pad, args.vid, args.pid, args.rev)
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