On Wed, 8 Dec 1999, Dan Seguin wrote:
>
> Is it possible to make nodes dynamically that are immutable from userland
> (even by root), but modifyable from the kernel?
Yes, of course. Just mark them as read-only (CTLFLAG_RD). You are free to
assign any value to them within the kernel. If it's more complex type
handled with SYSCTL_PROC (like eg. vm.zone sysctl) you still can decide
what value you return from kernel, and you can ignore any requests to
assign new values.
>
> On Mon, 29 Nov 1999, Andrzej Bialecki wrote:
>
> >
> > Yes. See for example linux emulator or my SPY module:
> >
> > http://www.freebsd.org/~abial/spy
> >
> > You can also create whole new branches, as the second example shows.
> >
> > Andrzej Bialecki
> >
> > // <[EMAIL PROTECTED]> WebGiro AB, Sweden (http://www.webgiro.com)
> > // -------------------------------------------------------------------
> > // ------ FreeBSD: The Power to Serve. http://www.freebsd.org --------
> > // --- Small & Embedded FreeBSD: http://www.freebsd.org/~picobsd/ ----
>
>
>
> --------------------------------------------------------------------------------
> Dan Seguin Texar Software, Corporation.
>
> Visit us at the RSA Conference 2000, January 16-20, San Jose, Booth # 1241
>
>
>
>
Andrzej Bialecki
// <[EMAIL PROTECTED]> WebGiro AB, Sweden (http://www.webgiro.com)
// -------------------------------------------------------------------
// ------ FreeBSD: The Power to Serve. http://www.freebsd.org --------
// --- Small & Embedded FreeBSD: http://www.freebsd.org/~picobsd/ ----
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