lkml.org 
[lkml]   [2017]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 6/6] tpm2: add session handle context saving and restoring to the space code
From
Date
On Fri, 2017-02-10 at 10:52 +0200, Jarkko Sakkinen wrote:
> On Wed, Feb 08, 2017 at 01:07:08PM +0200, Jarkko Sakkinen wrote:
> > + rc = tpm2_load_context(chip, space->session_buf,
> > + &offset, &handle);
> > + if (rc == -ENOENT) {
> > + /* load failed, just forget session */
> > + space->session_tbl[i] = 0;
>
> This is my only concern in this commit. Should we also in this case
> just flush the space or not?

I elected not to. If the handle is flushed by an external resource
manager, we get this event. If the RM and the app agreed to release
the session handle, then flushing the space would be overkill because
it would destroy the client session, so simply removing the handle
works. If the client tries to use the session again, it gets an error
and if it doesn't everything just works, which seems to be optimal.

James


\
 
 \ /
  Last update: 2017-02-10 17:21    [W:0.081 / U:0.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site