Re: [HTCondor-users] El Capitan and Sandbox

[Jaime Frey <jfrey@xxxxxxxxxxx>]

HTCondor can be made smarter about this. It collects basic information about all processes on the system (pid, ppid, cpu/memory usage), constructs a tree of parent-child relationships, then queries this data for various purposes.
These are mainly tracking the cpu/memory usage of jobs while they run and identifying the descendants of an HTCondor daemon or job so that they can be killed along with the ancestor.
task_for_pid() is used to collect the cpu and memory usage of each process. HTCondor doesn't need to collect that for system processes. If we could identify SIP-protected processes and skip the task_for_pid() call for them, I believe that would eliminate the system log spam.

Unfortunately, my Mac died right around when this email thread began, so I can't work on a fix at the moment. 

 - Jaime Frey

-----Original Message-----
From: HTCondor-users [mailto:htcondor-users-bounces@xxxxxxxxxxx]

Rich,

I instinctively recoil at circumventing security features on this machine, but you have a point; I will mull on it.

BTW, this error comes from procd trying to call task_for_pid which is now heavily regulated.

Thanks,
Kolja

On Thu, Jun 23, 2016 at 3:44 PM, Rich Pieri <ratinox@xxxxxxx> wrote:
> On 6/23/16 3:21 PM, Kolja Kauder wrote:
>> Since the machine is a visible server, that won't be a secure 
>> long-term solution. It would however allow me to edit the Sandbox
>
> I fail to see how this follows. SIP offers no protection against 
> remote attacks and essentially no local protection given how easy it 
> is to exploit privileged binaries.
>
>> settings. Do I guess correctly that I only need to add a file called 
>> condor_procd.sb containing (allow mach-priv-task-port
>>        (*) )
>> ? (I didn't expect to ever use LISP outside .emacs :)
>
> My understanding is that changes to protected areas will be undone 
> when you enable SIP. There may be ways around this but you'll have to 
> go digging into the csrutil man pages to find them.
>
> --
> Rich Pieri <ratinox@xxxxxxx>
> MIT Laboratory for Nuclear Science
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--
________________________
Kolja Kauder, Ph.D.
Post-Doctoral Research Fellow,
Physics Dept., Wayne State University
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