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Re: cap exchange race with map/unmap
From: |
Neal H. Walfield |
Subject: |
Re: cap exchange race with map/unmap |
Date: |
Wed, 19 Oct 2005 12:10:28 +0100 |
User-agent: |
Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.6 (Marutamachi) APEL/10.6 Emacs/21.4 (i386-pc-linux-gnu) MULE/5.0 (SAKAKI) |
At Tue, 18 Oct 2005 14:27:56 -0400,
Jonathan S. Shapiro wrote:
> I believe that the only possible protocol that could be correct is for
> all object servers to return by way of CapServer. In practice, this
> makes locally trusted CapServers impossible, because a general-purpose
> server cannot make assumptions about how the objects it creates will
> later be transferred.
I'm having difficult understanding this paragraph.
What does "return by way of CapServer" mean? Does it mean that when a
server returns, it doesn't respond directly to the caller but has the
capserver respond to the caller?
Why types of assumptions can't a server make about how the objects it
creates will later be transferred? Do you mean, for instance, if a
server uses the cap server any client must also use the cap server to
transfer the capability? I don't think this example is true as a
client can still provide revocable mappings.
Thanks,
Neal
- Re: cap exchange race with map/unmap, (continued)
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Re: cap exchange race with map/unmap,
Neal H. Walfield <=
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Why COPY != SIMULATED COPY, Jonathan S. Shapiro, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Jonathan S. Shapiro, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Marcus Brinkmann, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Espen Skoglund, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Espen Skoglund, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Espen Skoglund, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Jonathan S. Shapiro, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Espen Skoglund, 2005/10/19
- Re: Why COPY != SIMULATED COPY, Jonathan S. Shapiro, 2005/10/19