From: Alexei Starovoitov <ast@plumgrid.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Andy Lutomirski <luto@amacapital.net>,
Ingo Molnar <mingo@kernel.org>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
Eric Dumazet <edumazet@google.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Kees Cook <keescook@chromium.org>,
linux-api@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/2] bpf: enable non-root eBPF programs
Date: Wed, 7 Oct 2015 19:29:16 -0700 [thread overview]
Message-ID: <5615D4FC.1010706@plumgrid.com> (raw)
In-Reply-To: <1444078101-29060-2-git-send-email-ast@plumgrid.com>
On 10/5/15 1:48 PM, Alexei Starovoitov wrote:
> Unprivileged socket filter bpf programs have access to the
> following helper functions:
> - map lookup/update/delete (but they cannot store kernel pointers into them)
> - get_random (it's already exposed to unprivileged user space)
> - get_smp_processor_id
> - tail_call into another socket filter program
> - ktime_get_ns
> - bpf_trace_printk (for debugging)
while reviewing everything for Nth time realized that
bpf_trace_printk is useless for unprivileged users, since
trace_pipe is root only.
So going to drop it in V2.
next prev parent reply other threads:[~2015-10-08 2:29 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-05 20:48 [PATCH net-next 0/2] bpf: unprivileged Alexei Starovoitov
2015-10-05 20:48 ` [PATCH net-next 1/2] bpf: enable non-root eBPF programs Alexei Starovoitov
2015-10-05 21:00 ` Kees Cook
2015-10-05 21:12 ` Alexei Starovoitov
2015-10-05 21:16 ` Andy Lutomirski
2015-10-05 21:32 ` Alexei Starovoitov
2015-10-05 22:02 ` Kees Cook
2015-10-06 0:28 ` Alexei Starovoitov
2015-10-05 22:14 ` Daniel Borkmann
2015-10-06 0:51 ` Alexei Starovoitov
2015-10-06 7:13 ` Ingo Molnar
2015-10-06 8:05 ` Daniel Borkmann
2015-10-06 8:20 ` Ingo Molnar
2015-10-06 8:39 ` Daniel Borkmann
2015-10-06 17:50 ` Alexei Starovoitov
2015-10-06 17:56 ` Eric Dumazet
2015-10-06 18:05 ` Andy Lutomirski
2015-10-07 6:05 ` Ingo Molnar
2015-10-06 19:26 ` Alexei Starovoitov
2015-10-06 18:03 ` Daniel Borkmann
2015-10-06 12:45 ` Daniel Borkmann
2015-10-07 21:20 ` Alexei Starovoitov
2015-10-07 22:07 ` Daniel Borkmann
2015-10-07 22:22 ` Kees Cook
2015-10-07 23:49 ` Alexei Starovoitov
2015-10-08 6:21 ` Ingo Molnar
2015-10-08 6:30 ` Alexei Starovoitov
2015-10-08 17:42 ` Kees Cook
2015-10-08 2:29 ` Alexei Starovoitov [this message]
2015-10-05 20:48 ` [PATCH net-next 2/2] bpf: charge user for creation of BPF maps and programs Alexei Starovoitov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5615D4FC.1010706@plumgrid.com \
--to=ast@plumgrid.com \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=hannes@stressinduktion.org \
--cc=keescook@chromium.org \
--cc=linux-api@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@amacapital.net \
--cc=mingo@kernel.org \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).