svn commit: r360750 - stable/11/sys/netinet6

[Michael Tuexen]

Author: tuexen
Date: Thu May  7 02:31:24 2020
New Revision: 360750
URL: https://svnweb.freebsd.org/changeset/base/360750

Log:
  MFC r355264: Handle PTB message consistent for SCTP/IPv[46]
  
  Update the hostcache also for PTB messages received for SCTP/IPv6.
  The corresponding code for SCTP/IPv4 was introduced in
  https://svnweb.freebsd.org/base?view=revision&revision=317597
  
  Submitted by:		Julius Flohr
  Differential Revision:	https://reviews.freebsd.org/D22605

Modified:
  stable/11/sys/netinet6/sctp6_usrreq.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/netinet6/sctp6_usrreq.c
==============================================================================
--- stable/11/sys/netinet6/sctp6_usrreq.c	Thu May  7 02:28:30 2020	(r360749)
+++ stable/11/sys/netinet6/sctp6_usrreq.c	Thu May  7 02:31:24 2020	(r360750)
@@ -238,6 +238,11 @@ sctp6_notify(struct sctp_inpcb *inp,
 		}
 		if (net->mtu > next_mtu) {
 			net->mtu = next_mtu;
+			if (net->port) {
+				sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
+			} else {
+				sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
+			}
 		}
 		/* Update the association MTU */
 		if (stcb->asoc.smallest_mtu > next_mtu) {