From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Ricardo Leitner Subject: [PATCH net-next] sctp: add pr_debug for tracking asocs not found Date: Wed, 28 Dec 2016 09:51:56 -0200 Message-ID: <2e7482596bbf75efb56e313e33179f9e1c0e6996.1482924698.git.marcelo.leitner@gmail.com> Cc: linux-sctp@vger.kernel.org, Vlad Yasevich , Neil Horman , Xin Long To: netdev@vger.kernel.org Return-path: Received: from mail-qk0-f196.google.com ([209.85.220.196]:33239 "EHLO mail-qk0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751384AbcL1MAm (ORCPT ); Wed, 28 Dec 2016 07:00:42 -0500 Sender: netdev-owner@vger.kernel.org List-ID: This pr_debug may help identify why the system is generating some Aborts. It's not something a sysadmin would be expected to use. Signed-off-by: Marcelo Ricardo Leitner --- net/sctp/input.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/net/sctp/input.c b/net/sctp/input.c index 458e506ef84bae3c53c239d6cf89a9349faafb11..704ad19c1565fe5d8a8aad8e73be124f4c21e0f1 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -1229,13 +1229,26 @@ static struct sctp_association *__sctp_rcv_lookup(struct net *net, struct sctp_association *asoc; asoc = __sctp_lookup_association(net, laddr, paddr, transportp); + if (asoc) + goto out; /* Further lookup for INIT/INIT-ACK packets. * SCTP Implementors Guide, 2.18 Handling of address * parameters within the INIT or INIT-ACK. */ - if (!asoc) - asoc = __sctp_rcv_lookup_harder(net, skb, laddr, transportp); + asoc = __sctp_rcv_lookup_harder(net, skb, laddr, transportp); + if (asoc) + goto out; + if (paddr->sa.sa_family == AF_INET) + pr_debug("sctp: asoc not found for src:%pI4:%d dst:%pI4:%d\n", + &laddr->v4.sin_addr, ntohs(laddr->v4.sin_port), + &paddr->v4.sin_addr, ntohs(paddr->v4.sin_port)); + else + pr_debug("sctp: asoc not found for src:%pI6:%d dst:%pI6:%d\n", + &laddr->v6.sin6_addr, ntohs(laddr->v6.sin6_port), + &paddr->v6.sin6_addr, ntohs(paddr->v6.sin6_port)); + +out: return asoc; } -- 2.9.3