cryptoloop extended for compressors.
Hi, I'm porting cloop ideas from the 2.4 kernel to 2.6 and I'm basically extending the current cryptoloop to support compressors and not just ciphers. If someone interested wants take a look http://dev.gentoo.org/~lu_zero/gcloop contains some patch snapshots, and userspace utilities.
It isn't yet completed and the ucl module (that I'm using as decompressor) needs to incorporate libucl.a currently, you should copy it to crypto/ (probably one of the worst thing to do, but works fine for testing).
Regards
lu
Signature · 3 lines
Luca Barbato Developer Gentoo Linux http://www.gentoo.org/~lu_zero
gcloop: compressed loopback support for 2.6
Hi,
The kernel modules and the userspace tools seems to work fine enough.
Patches, and documentation are available at
http://dev.gentoo.org/~lu_zero/gcloop/
http://www.gentoo.org/proj/en/releng/gcloop
lu
Signature · 3 lines
Luca Barbato Developer Gentoo Linux http://www.gentoo.org/~lu_zero
Re: gcloop: compressed loopback support for 2.6
Quoted 6 lines · Luca Barbato
Hi,
The kernel modules and the userspace tools seems to work fine enough.Patches, and documentation are available at
http://dev.gentoo.org/~lu_zero/gcloop/
http://www.gentoo.org/proj/en/releng/gcloop
Is/will knoppix be using this this as well or is this a fork?
Re: gcloop: compressed loopback support for 2.6
Quoted 6 lines · Mike Fedyk
On Mon, Jan 19, 2004 at 05:29:21PM +0100, Luca Barbato wrote:
Is/will knoppix be using this this as well or is this a fork?
This started as fork from the cloop-0.6x.
Now the file format is almost the same, but the code is quite different: the only thing that remains is the the basic logic and the block unpacker. The current code is currently under testing for gentoo livecd and other projects that use the same tecnology, at least that I'm aware. If Klaus thinks that gcloop is good enough for his knoppix I'd be glad.
Currently gcloop-0.99 uses 32bit indexes since my target are livecd, for livedvd would be better use the newer cloop-2.0/1.0 file format with 64bit indexes.
gcloop isn't file format compatible with the old cloop-0.68 fileformat since I had to use in a different way the index and I prefer ucl instead of zlib.
lu
Signature · 3 lines
Luca Barbato Developer Gentoo Linux http://www.gentoo.org/~lu_zero
Re: gcloop: compressed loopback support for 2.6
Quoted 3 lines · Luca Barbato
gcloop isn't file format compatible with the old cloop-0.68 fileformat since I had to use in a different way the index and I prefer ucl instead of zlib.
Maybe you can merge ucl into cloop 2.x, and support both (one compression scheme per image, of course) in the same codebase?
Has cloop been ported to 2.6?
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Re: gcloop: compressed loopback support for 2.6
Quoted 7 lines
Quoted 4 lines · Luca Barbato
Quoted 3 lines
gcloop isn't file format compatible with the old cloop-0.68 fileformat since I had to use in a different way the index and I prefer ucl instead of zlib.
Quoted 1 line · Mike Fedyk
Maybe you can merge ucl into cloop 2.x, and support both (one compression
Quoted 3 lines · Luca Barbato
Quoted 1 line
scheme per image, of course) in the same codebase?
gcloop supports arbitrary compressor you just have to make the cryptoapi module of it,
That's good.
Quoted 1 line
and obviously change the userspace tools, the only
Hmm, so I presume that gcloop has its own userspace utilities...
Quoted 2 lines
restraint is the file format, the changes I made are due the need to avoid high penality on uncompressible blocks
Interesting.
Quoted 3 lines
, with some effort I can
make the parser support all the formats (gcloop, cloop-0.68, cloop-1.0/2.0) but would enlarge the code a bit or make it slower.
It would be good to have all of these competing formats handled, dicesions on which format(s) should be used for future versions before it's integrated into mainline.
Quoted 4 lines
Quoted 3 lines
Has cloop been ported to 2.6?
not that I know.
Boooo, bad knoppix! ;)