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linux/net/sctp
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Daniel Borkmann 8c2f414ad1 net: sctp: confirm route during forward progress 
This fix has been proposed originally by Vlad Yasevich. He says:

  When SCTP makes forward progress (receives a SACK that acks new chunks,
  renegs, or answeres 0-window probes) or when HB-ACK arrives, mark
  the route as confirmed so we don't unnecessarily send NUD probes.

Having a simple SCTP client/server that exchange data chunks every 1sec,
without this patch ARP requests are sent periodically every 40-60sec.
With this fix applied, an ARP request is only done once right at the
"session" beginning. Also, when clearing the related ARP cache entry
manually during the session, a new request is correctly done. I have
only "backported" this to net-next and tested that it works, so full
credit goes to Vlad.

Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-09 12:49:56 -07:00
..
associola.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
auth.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-02-08 18:02:14 -05:00
bind_addr.c net: sctp: get rid of t_new macro for kzalloc 2013-06-17 17:08:04 -07:00
chunk.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
command.c [SCTP]: Remove sctp_add_cmd_sf wrapper bloat 2008-03-27 17:54:29 -07:00
debug.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
endpointola.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
input.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
inqueue.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
ipv6.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
Kconfig net: sctp: get rid of SCTP_DBG_TSNS entirely 2013-07-02 00:08:03 -07:00
Makefile sctp: implement sctp association probing module 2010-04-30 22:41:09 -04:00
objcnt.c sctp: Make the proc files per network namespace. 2012-08-14 23:29:53 -07:00
output.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
outqueue.c net: sctp: confirm route during forward progress 2013-07-09 12:49:56 -07:00
primitive.c sctp: Push struct net down to sctp_chunk_event_lookup 2012-08-14 23:30:37 -07:00
probe.c net: sctp: attribute printl with __printf for gcc fmt checks 2013-05-01 15:04:10 -04:00
proc.c net: sctp: minor: sctp_seq_dump_local_addrs add missing newline 2013-06-25 16:33:04 -07:00
protocol.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
sm_make_chunk.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
sm_sideeffect.c net: sctp: confirm route during forward progress 2013-07-09 12:49:56 -07:00
sm_statefuns.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
sm_statetable.c sctp: Make sysctl tunables per net 2012-08-14 23:32:16 -07:00
socket.c sctp: use get_unused_fd_flags(0) instead of get_unused_fd() 2013-07-02 16:14:11 -07:00
ssnmap.c net: sctp: sctp_ssnmap: remove 'malloced' element from struct 2013-04-17 14:13:02 -04:00
sysctl.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
transport.c net: sctp: rework debugging framework to use pr_debug and friends 2013-07-01 23:22:13 -07:00
tsnmap.c net: sctp: remove SCTP_STATIC macro 2013-06-17 17:08:05 -07:00
ulpevent.c net: sctp: remove SCTP_STATIC macro 2013-06-17 17:08:05 -07:00
ulpqueue.c net: sctp: sctp_ulpq: remove 'malloced' struct member 2013-04-17 14:13:02 -04:00