git: b20c5963deae - stable/13 - sctp: improve counting of incoming chunks

The branch stable/13 has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=b20c5963deaee7c61160031eb78cb9a50698f8e2

commit b20c5963deaee7c61160031eb78cb9a50698f8e2
Author:     Michael Tuexen <tuexen@FreeBSD.org>
AuthorDate: 2022-01-01 19:59:47 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2022-02-23 00:07:31 +0000

    sctp: improve counting of incoming chunks
    
    (cherry picked from commit 502d5e8500b9537d90ae225eed2b600ddcef2afd)
---
 sys/netinet/sctp_input.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/netinet/sctp_input.c b/sys/netinet/sctp_input.c
index f4a698b3a775..c86e369e2b92 100644
--- a/sys/netinet/sctp_input.c
+++ b/sys/netinet/sctp_input.c
@@ -5352,12 +5352,14 @@ sctp_common_input_processing(struct mbuf **mm, int iphlen, int offset, int lengt
 			goto out;
 		}
 		if (ch->chunk_type == SCTP_SHUTDOWN_ACK) {
+			SCTP_STAT_INCR_COUNTER64(sctps_incontrolchunks);
 			sctp_send_shutdown_complete2(src, dst, sh,
 			    mflowtype, mflowid, fibnum,
 			    vrf_id, port);
 			goto out;
 		}
 		if (ch->chunk_type == SCTP_SHUTDOWN_COMPLETE) {
+			SCTP_STAT_INCR_COUNTER64(sctps_incontrolchunks);
 			goto out;
 		}
 		if (ch->chunk_type != SCTP_ABORT_ASSOCIATION) {