iot - Extracting firmware with python (offset question)

Question

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

for some reason whenever I try to extract a firmware with the identified parts using python, I get so many additional xz compressed data.

Here's my code in the python script, where it is (name, offset, and size)

    FirmwarePart("uimage_kernel", 0x0, 0x40),
    FirmwarePart("lzma",0x40,0x18A143),
    FirmwarePart("squashfs", 0x18A143,0)

Here's the Binwalk output of the original firmware binary.

I have a feeling I'm not calculating the size of the last component "squashfs" correctly. Sorry if this is unclear, I'm new to all this.

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1 Answer

深蓝 · Answer 1 · 2021-10-06T19:12:29+0000

answered Oct 7, 2021 by 深蓝 (71.8m points)

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