netdev - [bpf PATCH v2 0/3] bpf, sockmap ESTABLISHED state only

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Message-ID: <20180917175801.3870.61111.stgit@john-Precision-Tower-5810>
Date:   Mon, 17 Sep 2018 10:59:12 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     edumazet@...gle.com, ast@...nel.org, daniel@...earbox.net
Cc:     netdev@...r.kernel.org
Subject: [bpf PATCH v2 0/3] bpf, sockmap ESTABLISHED state only

Eric noted that using the close callback is not sufficient
to catch all transitions from ESTABLISHED state to a LISTEN
state. So this series does two things. First, only allow
adding socks in ESTABLISH state and second use unhash callback
to catch tcp_disconnect() transitions.

v2: Added check for ESTABLISH state in hash update sockmap as well.

Thanks,
John

---

John Fastabend (3):
      bpf: sockmap only allow ESTABLISHED sock state
      bpf: sockmap, fix transition through disconnect without close
      bpf: test_maps, only support ESTABLISHED socks

 kernel/bpf/sockmap.c                    |  102 +++++++++++++++++++++++++------
 tools/testing/selftests/bpf/test_maps.c |   10 ++-
 2 files changed, 89 insertions(+), 23 deletions(-)

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