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sctp: add pr_debug for tracking asocs not found

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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 <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marcelo Ricardo Leitner 2016-12-28 09:51:56 -02:00 committed by David S. Miller
parent 3ea35d3406
commit b77b7565a6
1 changed files with 15 additions and 2 deletions
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17
net/sctp/input.c
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@ -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;
}