linux/include/net/netns
Haishuang Yan 3733be14a3 ipv4: Namespaceify tcp_fastopen_blackhole_timeout knob
Different namespace application might require different time period in
second to disable Fastopen on active TCP sockets.

Tested:
Simulate following similar situation that the server's data gets dropped
after 3WHS.
C ---- syn-data ---> S
C <--- syn/ack ----- S
C ---- ack --------> S
S (accept & write)
C?  X <- data ------ S
	[retry and timeout]

And then print netstat of TCPFastOpenBlackhole, the counter increased as
expected when the firewall blackhole issue is detected and active TFO is
disabled.
# cat /proc/net/netstat | awk '{print $91}'
TCPFastOpenBlackhole
1

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-01 17:55:54 -07:00
..
can.h can: network namespace support for CAN gateway 2017-04-25 09:04:30 +02:00
conntrack.h netfilter: merge udp and udplite conntrack helpers 2017-01-03 14:33:25 +01:00
core.h percpu: add __percpu sparse annotations to net 2010-02-16 23:05:38 -08:00
dccp.h
generic.h netns: fix net_generic() "id - 1" bloat 2016-12-03 15:59:58 -05:00
hash.h netns: constify net_hash_mix() and various callers 2015-03-18 22:00:34 -04:00
ieee802154_6lowpan.h ieee802154: 6lowpan: ensure MTU of 1280 for 6lowpan 2014-08-19 19:17:42 +02:00
ipv4.h ipv4: Namespaceify tcp_fastopen_blackhole_timeout knob 2017-10-01 17:55:54 -07:00
ipv6.h ipv6: addrlabel: per netns list 2017-09-19 16:32:23 -07:00
mib.h net: use IS_ENABLED(CONFIG_IPV6) 2011-12-11 18:25:16 -05:00
mpls.h mpls: allow TTL propagation from IP packets to be configured 2017-03-13 15:29:22 -07:00
netfilter.h netfilter: convert hook list to an array 2017-08-28 17:44:00 +02:00
nftables.h netfilter: nf_tables: add netdev table to filter from ingress 2015-05-26 18:41:23 +02:00
packet.h packet: fix broken build. 2012-08-23 09:29:45 -07:00
sctp.h sctp: add reconf_enable in asoc ep and netns 2017-01-18 14:55:10 -05:00
unix.h
x_tables.h netfilter: don't pull include/linux/netfilter.h from netns headers 2015-06-18 21:14:31 +02:00
xfrm.h xfrm: remove flow cache 2017-07-18 11:13:41 -07:00