From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Fri, 23 Mar 2007 18:32:26 +0000 (-0700)
Subject: [SCTP]: Implement SCTP_ADDR_CONFIRMED state for ADDR_CHNAGE event
X-Git-Tag: firefly_0821_release~30278^2~169
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1ae4114dce35dd1d32ed847f60b599dbbdfd5829;p=firefly-linux-kernel-4.4.55.git

[SCTP]: Implement SCTP_ADDR_CONFIRMED state for ADDR_CHNAGE event

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h
index 9a8352710631..4ed752119bbc 100644
--- a/include/net/sctp/user.h
+++ b/include/net/sctp/user.h
@@ -265,6 +265,7 @@ enum sctp_spc_state {
 	SCTP_ADDR_REMOVED,
 	SCTP_ADDR_ADDED,
 	SCTP_ADDR_MADE_PRIM,
+	SCTP_ADDR_CONFIRMED,
 };
 
 
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 78d2ddb5ca18..85af1cb70fe8 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -714,8 +714,16 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
 	/* Record the transition on the transport.  */
 	switch (command) {
 	case SCTP_TRANSPORT_UP:
+		/* If we are moving from UNCONFIRMED state due
+		 * to heartbeat success, report the SCTP_ADDR_CONFIRMED
+		 * state to the user, otherwise report SCTP_ADDR_AVAILABLE.
+		 */
+		if (SCTP_UNCONFIRMED == transport->state &&
+		    SCTP_HEARTBEAT_SUCCESS == error)
+			spc_state = SCTP_ADDR_CONFIRMED;
+		else
+			spc_state = SCTP_ADDR_AVAILABLE;
 		transport->state = SCTP_ACTIVE;
-		spc_state = SCTP_ADDR_AVAILABLE;
 		break;
 
 	case SCTP_TRANSPORT_DOWN: