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netfilter: ipvs: do not create conn for ABORT packet in sctp_conn_schedule

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There's no reason for ipvs to create a conn for an ABORT packet
even if sysctl_sloppy_sctp is set.

This patch is to accept it without creating a conn, just as ipvs
does for tcp's RST packet.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Xin Long 2017-08-20 13:38:08 +08:00 committed by Pablo Neira Ayuso
parent 1cc4a01866
commit 68913a018f
1 changed files with 2 additions and 1 deletions
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3
net/netfilter/ipvs/ip_vs_proto_sctp.c
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@ -25,7 +25,8 @@ sctp_conn_schedule(struct netns_ipvs *ipvs, int af, struct sk_buff *skb,
sch = skb_header_pointer(skb, iph->len + sizeof(_sctph), sch = skb_header_pointer(skb, iph->len + sizeof(_sctph),
sizeof(_schunkh), &_schunkh); sizeof(_schunkh), &_schunkh);
if (sch) { if (sch) {
if (!(sysctl_sloppy_sctp(ipvs) || if (sch->type == SCTP_CID_ABORT ||
!(sysctl_sloppy_sctp(ipvs) ||
sch->type == SCTP_CID_INIT)) sch->type == SCTP_CID_INIT))
return 1; return 1;
ports = &sh->source; ports = &sh->source;