MFC r263922:

Handle an edge case of address management similar to TCP.
This needs to be reconsidered when the address handling
will be reimplemented.
The patch is from rrs@.

1 files changed, 8 insertions, 1 deletions

diff --git a/sys/netinet/sctp_pcb.c b/sys/netinet/sctp_pcb.c
index 08a8577..3dbaa8a 100644
--- a/sys/netinet/sctp_pcb.c
+++ b/sys/netinet/sctp_pcb.c
@@ -772,7 +772,14 @@ sctp_del_addr_from_vrf(uint32_t vrf_id, struct sockaddr *addr,
 		}
 		SCTPDBG(SCTP_DEBUG_PCB4, "Deleting ifa %p\n", (void *)sctp_ifap);
 		sctp_ifap->localifa_flags &= SCTP_ADDR_VALID;
-		sctp_ifap->localifa_flags |= SCTP_BEING_DELETED;
+		/*
+		 * We don't set the flag. This means that the structure will
+		 * hang around in EP's that have bound specific to it until
+		 * they close. This gives us TCP like behavior if someone
+		 * removes an address (or for that matter adds it right
+		 * back).
+		 */
+		/* sctp_ifap->localifa_flags |= SCTP_BEING_DELETED; */
 		vrf->total_ifa_count--;
 		LIST_REMOVE(sctp_ifap, next_bucket);
 		sctp_remove_ifa_from_ifn(sctp_ifap);