netdev - [bpf PATCH v3 0/3] bpf, sockmap ESTABLISHED state only

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Message-ID: <20180918043312.14911.35351.stgit@john-Precision-Tower-5810>
Date:   Mon, 17 Sep 2018 21:36:32 -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 v3 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
v3: Do not release lock from unhash in error path, no lock was
    used in the first place. And drop not so useful code comments

Thanks for reviewing Yonghong I carried your ACK forward
on patch 1/3.

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


 tools/testing/selftests/bpf/test_maps.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

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