[cryptoapi/sysfs] display cipher details in sysfs

[Greg KH]

On Wed, Sep 01, 2004 at 10:28:19AM +0200, Andreas Happe wrote:
> Hi,
> 
> following-up to: James Morris <jmorris at redhat.com> [040901 09:35]:
> >This looks potentially useful, although I'm not sure yet whether the 
> >userland crypto API should be exposed via sysfs or a separate filesystem.
> >
> >I suggest you post the patch to linux-kernel and the crypto API list at:
> >http://lists.logix.cz/pipermail/cryptoapi  as an RFC, for wider feedback.
> 
> the attached patch creates a /sys/cryptoapi/<cipher-name>/ hierarchie
> which includes all information which is currently offered by
> /proc/crypto. This was done by embedding a kobject in struct crypto_alg
> (include/linux/crypto.h) and using a kset/subsystem instead of the
> currently used list (crypto_alg->cra_list was removed, as it shouldn't
> be needed anymore). crypto/proc.c was converted to use the subsystem
> internal rwlock/list for its iteration of ciphers.
> 
> I think that the place for the cryptoapi-tree in sysfs is wrong (but the
> others (block, module, bus, class, etc.) seemed worse). But the effort
> to change this should be neglectable (and centered at syfs.c).

Why not use a class instead of a raw kobject?  Wouldn't a struct
class_device make things easier for you?  That would also put the stuff
into /sys/class/cryptoapi which I think makes a bit more sense than
/sys/cryptoapi.

Or how about just /sys/class/crypto ?

Other than that, I like this move, /proc/crypto isn't the best thing to
have in a proc filesystem :)

thanks,

greg k-h