netdev - [PATCH RFC net 0/2] tcp: Fix bhash2 and TIME

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Message-ID: <20221221151258.25748-1-kuniyu@amazon.com>
Date:   Thu, 22 Dec 2022 00:12:56 +0900
From:   Kuniyuki Iwashima <kuniyu@...zon.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
CC:     Jiri Slaby <jirislaby@...nel.org>,
        Joanne Koong <joannelkoong@...il.com>,
        Kuniyuki Iwashima <kuniyu@...zon.com>,
        Kuniyuki Iwashima <kuni1840@...il.com>,
        <netdev@...r.kernel.org>
Subject: [PATCH RFC net 0/2] tcp: Fix bhash2 and TIME_WAIT regression.

We forgot to add TIME_WAIT sockets to bhash2.  Therefore twsk cannot
prevent bind() to the same local address and port.

The first patch fixes the issue, but the layout change in struct
sock could have a negative impact.  So, this series is RFC.


Kuniyuki Iwashima (2):
  tcp: Add TIME_WAIT sockets in bhash2.
  tcp: Add selftest for bind() and TIME_WAIT.

 include/net/inet_timewait_sock.h            |  2 +
 include/net/sock.h                          |  5 +-
 net/ipv4/inet_hashtables.c                  |  5 +-
 net/ipv4/inet_timewait_sock.c               | 31 ++++++-
 tools/testing/selftests/net/.gitignore      |  1 +
 tools/testing/selftests/net/bind_timewait.c | 93 +++++++++++++++++++++
 6 files changed, 131 insertions(+), 6 deletions(-)
 create mode 100644 tools/testing/selftests/net/bind_timewait.c

-- 
2.30.2