[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: What operations in store_parsed_open() need the privilege?
From: |
Thomas Bushnell BSG |
Subject: |
Re: What operations in store_parsed_open() need the privilege? |
Date: |
Wed, 27 Aug 2008 18:03:14 -0700 |
On Thu, 2008-08-28 at 00:21 +0200, Da Zheng wrote:
> Thomas Bushnell BSG wrote:
> > On Wed, 2008-08-27 at 23:32 +0200, Da Zheng wrote:
> >
> >> I know boot fails and gets EPERM when it calls store_parsed_open, but I
> >> need to know what operations inside store_parsed_open() fail. Otherwise,
> >> I don't know how to fix it.
> >>
> >
> > Boot assumes that it is run as root, and assumes that quite thoroughly.
> >
> It's exactly my task, to make every user able to run their own subhurd.
Right. You'll have to do more than fix up your servers to deal with the
non-root situation (as you know, proc will require careful work). But
also boot will require significant work.
> > You need to have boot simply not even *try* to open such a device. Note
> > that boot isn't calling your servers at all. It calls the ones of its
> > containing environment.
> >
> > I assume that store_parsed_open fails because it doesn't have
> > permissions on the underlying /dev node.
> >
> yes. but to be specific, it really depends on how we run boot.
> If we run "boot -T device servers.boot hd1", what store_parsed_open does
> is to open the device by calling get_privileged_ports() and device_open().
> In this case, there is nothing to do with /dev nodes, and my proc proxy
> might be able to give a help:-)
The question you must think carefully about is which functions are
called by boot, and thus run in the context of the parent Hurd.
Thomas
- What operations in store_parsed_open() need the privilege?, Da Zheng, 2008/08/26
- Re: What operations in store_parsed_open() need the privilege?, Thomas Bushnell BSG, 2008/08/26
- Re: What operations in store_parsed_open() need the privilege?, Da Zheng, 2008/08/26
- Re: What operations in store_parsed_open() need the privilege?, Neal H. Walfield, 2008/08/28
- Re: What operations in store_parsed_open() need the privilege?, Thomas Bushnell BSG, 2008/08/28
- Re: What operations in store_parsed_open() need the privilege?, Da Zheng, 2008/08/28
- Re: What operations in store_parsed_open() need the privilege?, Samuel Thibault, 2008/08/28
- Re: What operations in store_parsed_open() need the privilege?, Thomas Bushnell BSG, 2008/08/28
- Re: What operations in store_parsed_open() need the privilege?, olafBuddenhagen, 2008/08/30