netdev - [PATCH net 0/2] mptcp: 32-bit sequence number improvements

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Date:   Fri, 18 Jun 2021 15:02:19 -0700
From:   Mat Martineau <mathew.j.martineau@...ux.intel.com>
To:     netdev@...r.kernel.org
Cc:     Mat Martineau <mathew.j.martineau@...ux.intel.com>,
        davem@...emloft.net, kuba@...nel.org, matthieu.baerts@...sares.net,
        mptcp@...ts.linux.dev, pabeni@...hat.com, fw@...len.de
Subject: [PATCH net 0/2] mptcp: 32-bit sequence number improvements

MPTCP-level sequence numbers are 64 bits, but RFC 8684 allows use of
32-bit sequence numbers in the DSS option to save header space. Those
32-bit numbers are the least significant bits of the full 64-bit
sequence number, so the receiver must infer the correct upper 32 bits.

These two patches improve the logic for determining the full 64-bit
sequence numbers when the 32-bit truncated version has wrapped around.

Paolo Abeni (2):
  mptcp: fix bad handling of 32 bit ack wrap-around
  mptcp: fix 32 bit DSN expansion

 net/mptcp/options.c  | 29 +++++++++++++++--------------
 net/mptcp/protocol.h |  8 ++++++++
 net/mptcp/subflow.c  | 17 +----------------
 3 files changed, 24 insertions(+), 30 deletions(-)

base-commit: 9cca0c2d70149160407bda9a9446ce0c29b6e6c6
-- 
2.32.0