From: Dave Eckhardt <davide+p9@cs.cmu.edu>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] https/factotum question
Date: Wed, 22 Feb 2006 18:31:15 -0500 [thread overview]
Message-ID: <6197.1140651075@piper.nectar.cs.cmu.edu> (raw)
In-Reply-To: <110ac39c99871b98c5739a23de17b6e2@swtch.com>
> your only option is to open the fd for mounting the secret
> factotum, then call becomenone(), then mount the fd, which
> is still open but otherwise inaccessible to you.
That is sort of what I meant. So I'd need a command line
flag which would open a service file descriptor (e.g.,
/srv/factotum but maybe something else) and then mount it
in the address space afterward.
I wonder how much of it I could do with a shell script
and a custom namespace file, i.e., open the service
descriptor as /fd/NN and then in the namespace file
mount /fd/NN as /mnt/factotum?
> the web server isn't signing pages, just that the connection
> is to the right machine.
One of the things I like about Plan 9 is that in theory sealed
name spaces should enable genuine "least privilege" protection
domains in a way that Unix can't do, and I'd kind of like to push
that envelope a bit.
Dave Eckhardt
prev parent reply other threads:[~2006-02-22 23:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-21 22:54 Dave Eckhardt
2006-02-21 23:00 ` Russ Cox
2006-02-22 23:31 ` Dave Eckhardt [this message]
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