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From: Davide Caratti <dcaratti@redhat.com>
To: "David S. Miller" <davem@davemloft.net>,
	Dave Watson <davejwatson@fb.com>,
	Boris Pismenny <borisp@mellanox.com>,
	Aviad Yehezkel <aviadye@mellanox.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	netdev@vger.kernel.org
Subject: [RFC PATCH net-next 0/2] net: extend INET_DIAG_INFO with information specific to TCP ULP
Date: Wed,  5 Jun 2019 17:39:21 +0200	[thread overview]
Message-ID: <cover.1559747691.git.dcaratti@redhat.com> (raw)

The current kernel does not provide any diagnostic tool, except
getsockopt(TCP_ULP), to know more about TCP sockets that have an upper
layer protocol (ULP) on top of them. This series extends the set of
information exported by INET_DIAG_INFO, to include data that are specific
to the ULP (and that might be meaningful for debug/testing purposes).

patch 1/2 extends INET_DIAG_INFO and allows knowing the ULP name for
each TCP socket that has done setsockopt(TCP_ULP) successfully.

kernel TLS is the only TCP ULP user at the moment: patch 2/2 extends kTLS
to let programs like 'ss' know the protocol version and the cipher in use.

Davide Caratti (2):
  tcp: ulp: add functions to dump ulp-specific information
  net: tls: export protocol version and cipher to socket diag

 include/net/tcp.h              |  3 +++
 include/uapi/linux/inet_diag.h |  9 +++++++
 include/uapi/linux/tls.h       |  8 +++++++
 net/ipv4/tcp_diag.c            | 34 +++++++++++++++++++++++++--
 net/tls/tls_main.c             | 43 ++++++++++++++++++++++++++++++++++
 5 files changed, 95 insertions(+), 2 deletions(-)

-- 
2.20.1


             reply	other threads:[~2019-06-05 15:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-05 15:39 Davide Caratti [this message]
2019-06-05 15:39 ` [RFC PATCH net-next 1/2] tcp: ulp: add functions to dump ulp-specific information Davide Caratti
2019-06-05 23:14   ` Jakub Kicinski
2019-06-17 13:06     ` Davide Caratti
2019-06-17 17:41       ` Jakub Kicinski
2019-06-05 15:39 ` [RFC PATCH net-next 2/2] net: tls: export protocol version and cipher to socket diag Davide Caratti
2019-06-05 23:25   ` Jakub Kicinski
2019-06-17 16:04     ` Davide Caratti
2019-06-17 18:07       ` Jakub Kicinski
2019-06-06  7:07   ` Boris Pismenny

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