Unable to unsquashfs "failed to read data block" about firmware-mod-kit HOT 11 CLOSED

This looks like it's using some tweaked broadcom version of lzma. If I can find 
source code, I'll add it in; found a few sources, but nothing that seems to 
work properly with this firmware.

Well it seems definitely this tweaked lzma compression exists not only int this 
HG553 model.

http://huaweihg612hacking.wordpress.com/2011/08/31/the-hg612-squashfs-file-syste
m/

Yes, I saw that site, but unfortunately the utilities linked to there didn't 
work on the image you posted here.

Hi,

Paul, the guy who runs the blog below managed to obtain the source code for the 
HG553 toolchain.  That includes x86 binaries for mksquashfs and unsquashfs. 

http://www.sbrk.co.uk/hw553/huawei/gpl.html

Paul has promised to publish what Huawei has sent him...

Cheers

The sources mentioned in the blog are available here:

http://forum.huawei.com/jive4/thread.jspa?threadID=324322&messageID=408081

Unfortunately there is only a compiled version of the mksquashfs tool, so 
without the sources is not gonna be easy to spot if they are using a tweaked 
lzma compression.

Pulled down the source provided on Paul's blog, unfortunately only a binary 
version of mksquashfs was included and no unsquashfs utility was present. 

Leaving this issue open in case we get more info later (may also be related to 
issue #27).

Hi,

Accidentally I have stumbled upon this unsquashfs executable that is capable of 
decompressing the vodafone's firmware.

http://es.sourceforge.jp/projects/sfnet_hg55x/downloads/tools/unsquashfs/

Hope it helps.

Thanks! Took a look at the binary, appears legitimate and does successfully 
extract the squashfs image. Added to the FMK.

We'll have to add some safeties if we have a binary, if you didn't already. 
Specifically for platforms on which it isn't built for. The changes are likely 
minimal, perhaps it can be recreated if anyone finds the time or impetus.

It's 32bit x86 Linux, so should run on most Linux systems. Any mac/bsd users 
will be out of luck for this one though.

The changes may be related to the wnr1000 squashfs code I also checked in; both 
the unsquashfs tools appear to be the same version (1.3), but the wnr1000 uses 
a non-standard squashfs magic.

I was more concerned about x64 platforms and even embedded systems running ARM. 
If I take the time, I could figure this out, but given my responsibilities, 
it'd be stupid of me.