netdev - [PATCH net 3/3] netfilter: conntrack: document sctp timeouts

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Date:   Tue, 13 Dec 2022 15:09:23 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org,
        pabeni@...hat.com, edumazet@...gle.com
Subject: [PATCH net 3/3] netfilter: conntrack: document sctp timeouts

From: Sriram Yagnaraman <sriram.yagnaraman@....tech>

Exposed through sysctl, update documentation to describe sctp states and
their default timeouts.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@....tech>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 .../networking/nf_conntrack-sysctl.rst        | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/Documentation/networking/nf_conntrack-sysctl.rst b/Documentation/networking/nf_conntrack-sysctl.rst
index 1120d71f28d7..49db1d11d7c4 100644
--- a/Documentation/networking/nf_conntrack-sysctl.rst
+++ b/Documentation/networking/nf_conntrack-sysctl.rst
@@ -163,6 +163,39 @@ nf_conntrack_timestamp - BOOLEAN
 
 	Enable connection tracking flow timestamping.
 
+nf_conntrack_sctp_timeout_closed - INTEGER (seconds)
+	default 10
+
+nf_conntrack_sctp_timeout_cookie_wait - INTEGER (seconds)
+	default 3
+
+nf_conntrack_sctp_timeout_cookie_echoed - INTEGER (seconds)
+	default 3
+
+nf_conntrack_sctp_timeout_established - INTEGER (seconds)
+	default 432000 (5 days)
+
+nf_conntrack_sctp_timeout_shutdown_sent - INTEGER (seconds)
+	default 0.3
+
+nf_conntrack_sctp_timeout_shutdown_recd - INTEGER (seconds)
+	default 0.3
+
+nf_conntrack_sctp_timeout_shutdown_ack_sent - INTEGER (seconds)
+	default 3
+
+nf_conntrack_sctp_timeout_heartbeat_sent - INTEGER (seconds)
+	default 30
+
+	This timeout is used to setup conntrack entry on secondary paths.
+	Default is set to hb_interval.
+
+nf_conntrack_sctp_timeout_heartbeat_acked - INTEGER (seconds)
+	default 210
+
+	This timeout is used to setup conntrack entry on secondary paths.
+	Default is set to (hb_interval * path_max_retrans + rto_max)
+
 nf_conntrack_udp_timeout - INTEGER (seconds)
 	default 30
 
-- 
2.30.2