From: Rao Shoaib <Rao.Shoaib@oracle.com>
To: netdev@vger.kernel.org, kuba@kernel.org, davem@davemloft.net,
rao.shoaib@oracle.com, viro@zeniv.linux.org.uk,
pabeni@redhat.com
Subject: [PATCH net-next af_unix v1 0/1] af_unix: Add OOB support
Date: Sun, 1 Aug 2021 00:57:06 -0700 [thread overview]
Message-ID: <20210801075707.176201-1-Rao.Shoaib@oracle.com> (raw)
From: Rao Shoaib <rao.shoaib@oracle.com>
The original Berkeley paper on sockets by Bill Joy
http://maibriz.de/unix/ultrix/_root/net.pdf
defined OOB support for all streams sockets.
However, this support was never added to AF_UNIX
streams sockets, probably because it was not needed.
With several containers running on the same host, AF_UNIX sockets
are being used instead of TCP sockets because they are efficient.
Papers have been published that show the performance benefit of using
AF_UNIX sockets and mention lack of OOB support.
https://www.usenix.org/system/files/conference/atc15/atc15-paper-dietz.pdf
Products are also being built that require OOB support for AF_UNIX sockets.
This patch adds OOB support to AF_UNIX stream sockets. The semantics
are same as that of TCP.
Rao Shoaib (1):
af_unix: Add OOB support
include/net/af_unix.h | 3 +
net/unix/Kconfig | 5 +
net/unix/af_unix.c | 153 +++++-
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/net/af_unix/Makefile | 5 +
.../selftests/net/af_unix/test_unix_oob.c | 437 ++++++++++++++++++
6 files changed, 602 insertions(+), 2 deletions(-)
create mode 100644 tools/testing/selftests/net/af_unix/Makefile
create mode 100644 tools/testing/selftests/net/af_unix/test_unix_oob.c
--
2.31.1
next reply other threads:[~2021-08-01 7:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-01 7:57 Rao Shoaib [this message]
2021-08-01 7:57 ` [PATCH net-next af_unix v1 1/1] af_unix: Add OOB support Rao Shoaib
2021-08-04 9:00 ` [PATCH net-next af_unix v1 0/1] " patchwork-bot+netdevbpf
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