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ANDROID: net: ip-sysctl: Document tcp_fwmark_accept

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This documentation patch is the part of original tcp_fwmark_accept
implementation, Change-Id: I26bc1eceefd2c588d73b921865ab70e4645ade57
("net: support marking accepting TCP sockets").

The implementation since then got upstreamed, 84f39b08d7
("net: support marking accepting TCP sockets"), without this
documentation part.

Change-Id: I26bc1eceefd2c588d73b921865ab70e4645ade57
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>

[AmitP: Refactored the commit log.
        Fixes: 84f39b08d7 ("net: support marking accepting TCP sockets")
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
This commit is contained in:
Lorenzo Colitti 2014-03-26 13:03:12 +09:00 • committed by Amit Pundir
parent 3a8e6944bb
commit 4edb73303f
1 changed files with 10 additions and 0 deletions

10
Documentation/networking/ip-sysctl.txt
View file

@ -630,6 +630,16 @@ tcp_fastopen_blackhole_timeout_sec - INTEGER
0 to disable the blackhole detection.
By default, it is set to 1hr.
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_syn_retries - INTEGER
Number of times initial SYNs for an active TCP connection attempt
will be retransmitted. Should not be higher than 127. Default value