From d2f77960e5b03b2d373252b2ee150a4a14010f99 Mon Sep 17 00:00:00 2001 From: Geliang Tang <geliangtang@gmail.com> Date: Tue, 22 Jun 2021 12:25:18 -0700 Subject: mptcp: add sysctl allow_join_initial_addr_port This patch added a new sysctl, named allow_join_initial_addr_port, to control whether allow peers to send join requests to the IP address and port number used by the initial subflow. Suggested-by: Florian Westphal <fw@strlen.de> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- Documentation/networking/mptcp-sysctl.rst | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'Documentation/networking/mptcp-sysctl.rst') diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst index ee06fd782465..76d939e688b8 100644 --- a/Documentation/networking/mptcp-sysctl.rst +++ b/Documentation/networking/mptcp-sysctl.rst @@ -32,3 +32,16 @@ checksum_enabled - BOOLEAN per-namespace sysctl. Default: 0 + +allow_join_initial_addr_port - BOOLEAN + Allow peers to send join requests to the IP address and port number used + by the initial subflow if the value is 1. This controls a flag that is + sent to the peer at connection time, and whether such join requests are + accepted or denied. + + Joins to addresses advertised with ADD_ADDR are not affected by this + value. + + This is a per-namespace sysctl. + + Default: 1 -- cgit