Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs

From	Daniel Borkmann <daniel@iogearbox.net>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs
Date	2015-10-09 19:50 +0200
Message-ID	<qhJXQ-HL-29@gated-at.bofh.it> (permalink)
References	(1 earlier) <qhbWa-2nw-7@gated-at.bofh.it> <qho70-33f-13@gated-at.bofh.it> <qhrxT-83b-1@gated-at.bofh.it> <qhElr-129-1@gated-at.bofh.it> <qhJOa-wh-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 10/09/2015 07:30 PM, Alexei Starovoitov wrote:
...
> Openstack use case is different. There it will be prog_type_sched_cls
> that can mangle packets, change skb metadata, etc under TC framework.
> These are not suitable for all users and this patch leaves
> them root-only. If you're proposing to add CAP_BPF_TC to let containers
> use them without being CAP_SYS_ADMIN, then I agree, it is useful, but
> needs a lot more safety analysis on tc side.

Well, I think if so, then this would need to be something generic for
tc instead of being specific to a single (out of various) entities
inside the tc framework, but I currently doubt that this makes much
sense. If we allow to operate already at that level, then restricting
to CAP_SYS_ADMIN makes more sense in that specific context/subsys to me.

Best,
Daniel
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Thread

[PATCH v2 net-next 0/3] bpf: unprivileged Alexei Starovoitov <ast@plumgrid.com> - 2015-10-08 07:30 +0200
  [PATCH v2 net-next 3/3] bpf: add unprivileged bpf tests Alexei Starovoitov <ast@plumgrid.com> - 2015-10-08 07:30 +0200
    Re: [PATCH v2 net-next 3/3] bpf: add unprivileged bpf tests Kees Cook <keescook@chromium.org> - 2015-10-08 19:50 +0200
      Re: [PATCH v2 net-next 3/3] bpf: add unprivileged bpf tests Alexei Starovoitov <ast@plumgrid.com> - 2015-10-08 20:00 +0200
  [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Alexei Starovoitov <ast@plumgrid.com> - 2015-10-08 07:30 +0200
    Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Kees Cook <keescook@chromium.org> - 2015-10-08 19:50 +0200
    Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Hannes Frederic Sowa <hannes@stressinduktion.org> - 2015-10-08 20:30 +0200
      Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Alexei Starovoitov <ast@plumgrid.com> - 2015-10-09 00:10 +0200
        Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Hannes Frederic Sowa <hannes@stressinduktion.org> - 2015-10-09 13:50 +0200
          Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Alexei Starovoitov <ast@plumgrid.com> - 2015-10-09 19:40 +0200
            Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Daniel Borkmann <daniel@iogearbox.net> - 2015-10-09 19:50 +0200
              Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Alexei Starovoitov <ast@plumgrid.com> - 2015-10-09 20:00 +0200
      Re: [PATCH v2 net-next 1/3] bpf: enable non-root eBPF programs Thomas Graf <tgraf@suug.ch> - 2015-10-09 11:30 +0200
  Re: [PATCH v2 net-next 0/3] bpf: unprivileged David Miller <davem@davemloft.net> - 2015-10-13 04:10 +0200

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