[wplug] Desperately seeking SuSE - My RH8 dilemma

[Coutch, Robert]

Here's what I did.

Downloaded kernel patches from kerneli.org.
Attempted to make modules by adding KDIR=/usr/src/linux-2.4.18-26.8.0
directive.
Failed because .config was not found.
Copied /usr/src/linux-2.4.18-26.8.0/.tmpconfig to .config

Modules finally compiled.

Moved the cipher-twofish.o module to /lib/modules ...... /crypto/ciphers.

Even though Red Hat 8 has cryptoAPI and cryptoloop already there, losetup
doesn't support them - Go figure.

I loaded an older losetup that supports cryptoAPI from an rpm.

Created the loopback device (losetup -e twofish /dev/loop0 /root/test.img).
[test.img was created as a Twofish encrypted jfs file system].


Everything going well until I issued the mount command (mount -t jfs
/dev/loop0 /root/TEST).

SEGMENTATION FAULT

I quit for the night - so close and yet, so far !

I tried to compile loop_fish2.c using a Makefile for kernel modules
but I got a TON of errors that seemed to come from the RedHat header files
- hmmmmmm.

The funny part (not really) is that Red Hat 8 comes with the crytpoAPI in
the kernel as well as 
cryptoloop and cipher-aes modules but you can't use them without patching
your kernel sources and rebuilding.

Is there some sort of legal problems in the USA with cryptography?
It's been in SuSE (made in Germany)since 7.2 and no patching is needed.

Just wondering.

Any other suggestions?


Thanks,

Bob


-----Original Message-----
From: R.E.Coutch [mailto:coutchre at usaor.net]
Sent: Tuesday, March 18, 2003 9:12 AM
To: coutchre at tvratings.com
Subject: RE: [wplug] Desperately seeking SuSE - My RH8 dilemma


Coutch, Robert wrote:
> Now for my next (and hopefully last problem).
> 
> I have the cryptoloop module on RH8 but no cipher module for twofish.
> The only decent info on the net about this is at the kerneli.org site
> where they offer some kernel patches.
> The information here is vague and I have probelms getting an rpm
> kernel update going, let alone trying
> to patch and compile the kernel.
> 
> I could not find the cipher-twofish.o module floating around on the
> net. 

	Have you looked at:
	http://www.ingorohloff.de/twofish.html
	and / or:
	(the authors) http://www.counterpane.com/twofish.html


> I have two options:
> 
> 1 - Someone points me to an idiot's guide to the kernel.
	I have yet to see anything that does not require quite a bit of
reading if you really want to know what you're doing.  There are several
guides if you just want to be walked through the steps.  See The Linux
Documentation Project 

> 2 - Someone tells me how to take the loop_fish2.c source from my SuSE
> 7.3 sources and compile it as a kernel module for RH8.
	Just get the source from above....


> The second choice "sounds" easier but I am more than clueless here.
	That's what makes it fun!

> In the meantime, I've been searching the net and reading a LOT of
> how-to's. 
	Sadly, there's not much else to do if no one here can help.

	If you're feeling really ambitious you can get the source tarball,
generate a spec file, and use rpmbuild to create binary & source rpms to
submit to Freshrpms.  It's quite easy after a bit of reading up on
RPM(build).  Looking at an existing spec file from a Red Hat source RPM will
help you a great deal.

Don
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