Messages in this thread | | | Subject | Re: [PATCH v10 09/12] arch/x86: enable task isolation functionality | From | Chris Metcalf <> | Date | Wed, 9 Mar 2016 16:05:53 -0500 |
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On 3/9/2016 3:58 PM, Andy Lutomirski wrote: >> My preference would be not to have to require all task-isolation users >> >to also figure out all the complexities of creating BPF programs, so >> >my intention is to have task isolation automatically generate a BPF >> >program (just allowing prctl/exit/exit_group and failing everything >> >else with SIGSYS). To support having it work this way, I open up >> >the seccomp stuff a little so that kernel clients can effectively >> >push/pop a BPF program into seccomp: > That sounds like a great use case for the new libtaskisolation that > someone is surely writing:)
Happily, task isolation is so simple an API that all that is needed is a prctl().
... Unless somehow a requirement to inflict a huge blob of eBPF into the kernel just to use task isolation safely is added, of course :-)
-- Chris Metcalf, Mellanox Technologies http://www.mellanox.com
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