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Re: Potential use case for opaque space bank: domain factored network st
From: |
Pierre THIERRY |
Subject: |
Re: Potential use case for opaque space bank: domain factored network stack |
Date: |
Mon, 8 Jan 2007 03:21:33 +0100 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
Scribit Marcus Brinkmann dies 08/01/2007 hora 02:24:
> I note that the EROS space bank is hierarchical as well, and it does
> not inhibit POLA either.
Because of the use of the constructor, I thought EROS space bank was
clearly not hierarchical.
> I also want to point out that today most systems deployed do not
> implement POLA, and thus the harm, if it exists at all, is at most
> opportunistic.
That depends on the point of view. If we plan to do as bad as others do,
yes, the harm is only potential. But if we have as a goal to build a
secure system and end up with a system not significantly better than the
existing ones, this would be a failure.
I also had understood that POLA was clearly a goal of the next Hurd.
> However, please note that virtually all systems widely deployed today
> do have "transparent memory", do you know any exceptions?
I may use one everyday: Linux. It seems I can't debug a program that I
have the right to execute but not to read. I'm pretty sure that a setuid
program I can execute is totally impossible to debug or monitor.
Curiously,
Pierre
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- Re: Potential use case for opaque space bank: domain factored network stack, (continued)
- Re: Potential use case for opaque space bank: domain factored network stack, Pierre THIERRY, 2007/01/06
- Re: Potential use case for opaque space bank: domain factored network stack, Marcus Brinkmann, 2007/01/06
- Re: Potential use case for opaque space bank: domain factored network stack, Pierre THIERRY, 2007/01/07
- A design guideline, Jonathan S. Shapiro, 2007/01/07
- Re: A design guideline, Pierre THIERRY, 2007/01/07
- A wiki? [A design guideline], Anton Tagunov, 2007/01/08
- Re: A wiki? [A design guideline], Pierre THIERRY, 2007/01/08
- Re: Potential use case for opaque space bank: domain factored network stack, Anton Tagunov, 2007/01/07
- Re: Potential use case for opaque space bank: domain factored network stack, Jonathan S. Shapiro, 2007/01/07
- Re: Potential use case for opaque space bank: domain factored network stack, Marcus Brinkmann, 2007/01/07
- Re: Potential use case for opaque space bank: domain factored network stack,
Pierre THIERRY <=
- Re: Potential use case for opaque space bank: domain factored network stack, Marcus Brinkmann, 2007/01/07
- Re: Potential use case for opaque space bank: domain factored network stack, Pierre THIERRY, 2007/01/07
- To Pierre, Anton Tagunov, 2007/01/08
- Re: To Pierre, Pierre THIERRY, 2007/01/08
- Re: To Pierre, Anton Tagunov, 2007/01/08
- Re: Potential use case for opaque space bank: domain factored network stack, Jonathan S. Shapiro, 2007/01/07
- Re: Potential use case for opaque space bank: domain factored network stack, Pierre THIERRY, 2007/01/08
- Re: Potential use case for opaque space bank: domain factored network stack, Jonathan S. Shapiro, 2007/01/08
- Re: Potential use case for opaque space bank: domain factored network stack, Pierre THIERRY, 2007/01/08
- Re: Potential use case for opaque space bank: domain factored network stack, Marcus Brinkmann, 2007/01/08