[RFC PATCH 2/2] cr: debug security_checkpoint_header and security_may_restart

[Serge E. Hallyn]

Quoting Casey Schaufler (casey at schaufler-ca.com):
> Serge E. Hallyn wrote:
> > This patch, for debugging only, introduces a silly admin-controlled
> > 'policy version' for smack.  By default the version is 1.  An
> > admin (with CAP_MAC_ADMIN) can change it by echoing a new value
> > into /smack/version.
> >   
> 
> The scheme you have suggested is just one step off of completely
> acceptable for real. More detail below, but if you make the "version"
> a string instead of a number I'm happy with it. In particular, a
> string that would itself be a valid Smack label makes everything
> really simple.

Presumably at many sites the version will be a unique string not
used as a label anywhere else.  That's ok?

> It would take me a few days, but if you're not in a real hurry or
> you're lazier than I am (yeah, right) I could provide a patch that
> does it. Or, if I haven't been completely incomprehensible, you
> could do a revision.

Heh, I'm in no hurry.  I'll mark this to do midway next week, if
you haven't gotten around to it first.  Thanks!

-serge