execute a user process in the kernel
Chris Pressey
cpressey at catseye.mine.nu
Wed Sep 22 23:16:21 PDT 2004
On Wed, 22 Sep 2004 18:46:49 -0400
Allan Fields <bsd at afields.ca> wrote:
> On Wed, Sep 22, 2004 at 08:49:11AM +0000, Gordon David wrote:
> > Hello,
> >
> > I have a question. Anyone would like to tell me how to execute a
> > user process or shell script in the kernel?
>
> You probably really don't want to do this and if you do, there is
> likely a better approach.
Reading between the lines and guessing - here's what you can do:
Write a userland program that (1) reads /dev/fooctl, (2) does something
based on what it got from /dev/fooctl, and (3) goes back to step (1).
Then write a kernel driver that produces output on /dev/fooctl every
time it wants the userland program to do something.
This achieves the effect you (probably) want while maintaining the
seperation between kernel and userland.
HTH,
-Chris
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