Re: pam_sshauth update - status update, ready for hacking?

On Wed, Mar 30, 2011 at 08:55:01AM -0500, Scott Balneaves wrote:
> On Tue, Mar 22, 2011 at 09:52:37AM -0500, Scott Balneaves wrote:
> 
> By way of an update, I've progressed reasonably well along getting things to
> work.

I didn't get a chance to update this before I went away to my son's Basketball
tourney on the weekend, but I'm happy to report that I actually got a
successful login, and desktop start using pam_sshauth on the weekend.  In
keeping with using retro XDM, and for nostalgia purposes, I started TWM
remotely. :)

I simply had to create a custom script for the x-window-manager binary, and xdm
picked it up automatically.

At this point, tonight I'll spend some time cleaning things up, and trying to
get manual pages written, and blow away my chroot and "do it properly".
Specifically:

1) Use "pam-auth-update" to manipulate the actual pam configs, as opposed to 
   diddling with the pam configs using vi.  My understanding is that this is
   shipped as part of the pam packages, and so *should* be a good bet that
   it'll be available on all Linuxes.

2) Use update-alternatives to set the x-window-manager link.

I know dynamic host selection at login time is something we need, so I'll also
code up a "gethost=" parameter for the pam_sshauth module.  It'll point to an
executable, of which I'll expect to read one line containing a newline
terminated host ip or name that will be used as the basis to select a host to
log in on.

Finally, I know we have the ability, within LDM, of selecting from a menu which
host to log in on.  Most greeters don't have this ability, however, my
understanding is that we can code up greeters for LightDM using HTML, as it
used webkit to render the greeter page.  I'm imagining we can somehow populate,
and then return the host from that page.  In that case, simply pre-setting the
PAM_SSHAUTH_HOST environment variable should have the intended result, so I
think we can handle that use-case.

Once I get all this done in the next day or so, I'd wonder if any interested
LTSP hackers would have time to get together for an evening online, and see if
we can somehow bolt this into the ltsp-build-client command?

Let me know.

Scott

-- 
Scott L. Balneaves | The closest you will ever come in this life to an
Systems Department | orderly universe is a good library.
Legal Aid Manitoba |     -- Ashleigh Brilliant

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