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authorGeliang Tang <geliangtang@gmail.com>2021-06-22 12:25:18 -0700
committerDavid S. Miller <davem@davemloft.net>2021-06-22 14:36:01 -0700
commitd2f77960e5b03b2d373252b2ee150a4a14010f99 (patch)
treec408f08035adb2cb51becf1e8bd499d38bfa84d0 /Documentation/networking
parenta432c771e2d9bc059ffe3028faf040c08b6a9f98 (diff)
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>
Diffstat (limited to 'Documentation/networking')
-rw-r--r--Documentation/networking/mptcp-sysctl.rst13
1 files changed, 13 insertions, 0 deletions
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