On Thu, Sep 3, 2009 at 5:25 PM, Daniel Lenski <[email protected]> wrote: > I have not found any other source of these, unfortunately. I am happy > to send the extracted firmware to developers off-list if desired. > Linksys's less-than-helpful GPL source code page gives no indication of > the age or date of the various files, so it's hard for me to tell which > might be newer without downloading many Gb and extracting many > firmwares. I have half a mind to write a Python script...
Hi all, Since starting this thread, I've search around more to find b43 firmware. I wrote a script to automatically download, unpack, and scour each and every one of the Linksys GPL packages (http://www.linksysbycisco.com/US/en/supportgplcode) for firmware. I found some interesting things in the process, including several new firmware versions. Perhaps most interestingly, I found Broadcom WL drivers built for a 2.6.x kernel. If you grab the file WAG54GX2_A_v1009_UK_GPL.tgz from Linksys, there's a file src.GPL/driver/2.6.8.1/extra/wl.ko containing firmware. Very intriguing. Also, I wrote a pure-Python version of b43-fwcutter (attached) to facilitate this automated firmware extraction, based on mklist.py. Just point it at a binary containing firmware, and it will (a) find the firmware in the manner of mklist.py, and (b) extract it in the manner of b43-fwcutter.c. It produces identical firmware files as the C version of b43-fwcutter, and may be useful if experimenting with different firmware versions. In the process of writing the Python code, I think I found an endian-related bug in b43-fwcutter.c. It mangles the byte order of firmware instructions and as a result the analyse_ucode() routine doesn't find the firmware version information on little-endian hosts. I can submit a patch for that as well, if interested. But the bug is fixed in my Python implementation, which you can try out. Dan
b43_fwcutter.py
Description: Binary data
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