[CRIU] Need for root access? how to capture and restore user data.

[Mike Dupont]

Today I found this https://github.com/elfmaster/ecfs that claims to be able
to restore a process as well.
I am looking at creating a a library function that can dump and restore
from inside the process.

On Tue, Sep 13, 2016 at 11:03 AM, Pavel Emelyanov <xemul at virtuozzo.com>
wrote:

> On 09/11/2016 05:13 PM, Mike Dupont wrote:
> > Dear Criu Hackers,
> >
> > I am attempting to implement a process capture tool for the gcc to
> extract  compiler data that the user creates.
> > I have been experimenting with  google-coredumper (produced core files
> that are truncated) and just creating a normal core dump (working)
> > Now I am taking a try with criu, and I have gotten it to dump,
> > https://github.com/h4ck3rm1k3/gcc-plugin-cpp-template/blob/
> master/plugin.cpp#L96
> >
> > but it needs root access. All I would really like is access to the
> memory of the program that is loadable without using gdb.
> > I would like to be able to load the memory back and then use custom code
> to decode it with help of the programs header files.
> >
> > Do any of you have some tips for me ? How to get criu to work without
> root access (this needs to be a tool that can be used
> > in the field with only access to the gcc), or how to load in a core file
> and attach to it without gdb?
>
> Well, the user-mode of CRIU is something we want ourselves too :)
> If you take criu-dev branch, then non-root criu is almost there, i.e. --
> criu
> compiled from this branch is able to dump something and restore with
> limitations.
>
> We will describe this in more details here https://criu.org/User-mode
> soon.
>
> As far as restoring only memory is concerned... Well, this would be called
> "partial
> restore". This thing is only in plans, but no code for it yet :(
>
> -- Pavel
>
> > thanks,
> > mike
> >
> > ps http://sfk16.flossk.org/ I am help organizing this conference on
> oct22 if anyone wants to visit kosovo!
> >
> > --
> > James Michael DuPont
> > Kansas Linux Fest http://kansaslinuxfest.us
> > Free/Libre Open Source and Open Knowledge Association of Kansas
> http://openkansas.us
> > Member of Free Libre Open Source Software Kosova http://www.flossk.org
> > Saving Wikipedia(tm) articles from deletion http://SpeedyDeletion.wikia.
> com
> >
> >
> > _______________________________________________
> > CRIU mailing list
> > CRIU at openvz.org
> > https://lists.openvz.org/mailman/listinfo/criu
> >
>
>


-- 
James Michael DuPont
Kansas Linux Fest http://kansaslinuxfest.us
Free/Libre Open Source and Open Knowledge Association of Kansas
http://openkansas.us
Member of Free Libre Open Source Software Kosova http://www.flossk.org
Saving Wikipedia(tm) articles from deletion http://SpeedyDeletion.wikia.com
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