Hello again, On Mon, Jun 12, 2017 at 12:59 PM, Michael Büsch <m...@bues.ch> wrote: > On Mon, 12 Jun 2017 12:28:09 -0400 > João Paulo Rechi Vita <jprv...@endlessm.com> wrote: > >> We already ship a similar script based on the debian package for >> b43-fwcutter (with some adaptations for our rootfs layout), that would >> download the drivers, extract and install firmware for the user, so we >> could just ship the files as well. What I was trying to avoid is >> shipping those files, and that's where extracting from the Windows >> drivers would come in handy. > > > Well, the problem is that it is very hard to get the names for the > firmware images found in the binary. > > What you could do is try to find a Linux driver and a Windows driver > with exactly matching FW versions and then use the names from the Linux > driver to extract the blobs from the Windows driver.
We've been trying to do some binary grepping for the first 4 bytes of the firmware files in the windows driver (grep -obUaP "\x75\x01\x00\x00" BCMWL664.SYS), but although there are some matching occurrences, after that the bytes start to differ. Any other suggestions on trying to match the firmware files with windows drivers? > It would be pretty easy to write a script that takes a Linux driver and > its matching extract-offsets and extract-names and then create the > corresponding offsets for the Windows binary. > Please feel free to create such a script and I would be happy to > include it in b43-fwcutter. > > A script to auto-generate the extract-info from a Linux driver is > already included with b43-fwcutter. > Yep, I have looked at that, and tried to objdump the windows driver, but as you guys said, the symbol names are stripped out of it. On a another topic, is there a license file available somewhere for the wl MIPS drivers? I've downloaded the Asus/Netgear tarballs that they were originally extracted from, but couldn't find a license for the drivers there, just a general release notes file on the top dir, and some un-related licenses for different projects used in the router's rootfs image. Thanks, ...................................................................................... João Paulo Rechi Vita | +1.415.851.5778 | Endless _______________________________________________ b43-dev mailing list b43-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/b43-dev
