Thread (14 messages) 14 messages, 2 authors, 2013-07-01
STALE4733d
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[PATCH 07/12] ipvs: drop SCTP connections depending on state

From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: 2013-06-30 23:54:58
Also in: netfilter-devel
Subsystem: ipvs, netfilter, networking [general], the rest · Maintainers: Simon Horman, Julian Anastasov, Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds 

From: Julian Anastasov <ja@ssi.bg>

Drop SCTP connections under load (dropentry context) depending
on the protocol state, just like for TCP: INIT conns are
dropped immediately, established are dropped randomly while
connections in progress or shutdown are skipped.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 net/netfilter/ipvs/ip_vs_conn.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index c8c52a9..4c8e5c0 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -1231,6 +1231,18 @@ void ip_vs_random_dropentry(struct net *net)
 				default:
 					continue;
 				}
+			} else if (cp->protocol == IPPROTO_SCTP) {
+				switch (cp->state) {
+				case IP_VS_SCTP_S_INIT1:
+				case IP_VS_SCTP_S_INIT:
+					break;
+				case IP_VS_SCTP_S_ESTABLISHED:
+					if (todrop_entry(cp))
+						break;
+					continue;
+				default:
+					continue;
+				}
 			} else {
 				if (!todrop_entry(cp))
 					continue;
-- 
1.7.10.4
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