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authorLorenzo Colitti <lorenzo@google.com>2018-10-29 09:30:29 +0900
committerDavid S. Miller <davem@davemloft.net>2018-10-29 20:41:52 -0700
commite2d00e62f24b907d49b83802ae91a6fa6254a48c (patch)
tree09aa97d623cad83db50ec881e46980d2ae6934b1 /Documentation
parent414dd6fb9a1a1b59983aea7bf0f79f0085ecc5b8 (diff)
Documentation: ip-sysctl.txt: Document tcp_fwmark_accept
This patch documents the tcp_fwmark_accept sysctl that was added in 3.15. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/networking/ip-sysctl.txt11
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 163b5ff1073c..32b21571adfe 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -316,6 +316,17 @@ tcp_frto - INTEGER
By default it's enabled with a non-zero value. 0 disables F-RTO.
+tcp_fwmark_accept - BOOLEAN
+ If set, incoming connections to listening sockets that do not have a
+ socket mark will set the mark of the accepting socket to the fwmark of
+ the incoming SYN packet. This will cause all packets on that connection
+ (starting from the first SYNACK) to be sent with that fwmark. The
+ listening socket's mark is unchanged. Listening sockets that already
+ have a fwmark set via setsockopt(SOL_SOCKET, SO_MARK, ...) are
+ unaffected.
+
+ Default: 0
+
tcp_invalid_ratelimit - INTEGER
Limit the maximal rate for sending duplicate acknowledgments
in response to incoming TCP packets that are for an existing