> On Wed, 9 Nov 2005, Jeff Garzik wrote:
>
> >
> > Has anybody put any thought towards how a userspace block driver would work?
> >
> > Consider a block device implemented via an SSL network connection. I don't
> > want to put SSL in the kernel, which means the only other alternative is to
> > pass data to/from a userspace daemon.
> >
> > Anybody have any favorite methods? [similar to] mmap'd packet socket? ramfs?
Hm, how about a simple trick:
you write a "remote resource access" filesystem and do
mount -t remote_resourse -o access_control.conf 192.168.1.1 /mnt/server1
then you "just" write a library to overload open, close, read, write,
ioctl,... do
export LD_PRELOAD=remote_libc.so
and then
mount /mnt/server1/hda1 /usr/local
In /mnt/server1/ you could have interesting things like
mouse0
dsp0
or even
network0
node0/cpu0
node0/ram0
Simple, sin't it?:-)
Thanks
Guennadi
---
Guennadi Liakhovetski
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