Fix Send(Messagable) which does not account for TargetSubID & SenderSubID

registry.go

@@ -43,12 +43,24 @@ func Send(m Messagable) (err error) {
 		return err
 	}
 
+	var targetSubID FIXString
+	msg.Header.GetField(tagTargetSubID, &targetSubID)
+
 	var senderCompID FIXString
 	if err := msg.Header.GetField(tagSenderCompID, &senderCompID); err != nil {
 		return err
 	}
 
-	sessionID := SessionID{BeginString: string(beginString), TargetCompID: string(targetCompID), SenderCompID: string(senderCompID)}
+	var senderSubID FIXString
+	msg.Header.GetField(tagSenderSubID, &senderSubID)
+
+	sessionID := SessionID{
+		BeginString:  string(beginString),
+		TargetCompID: string(targetCompID),
+		TargetSubID:  string(targetSubID),
+		SenderCompID: string(senderCompID),
+		SenderSubID:  string(senderSubID),
+	}
 
 	return SendToTarget(msg, sessionID)
 }

registry_test.go

@@ -0,0 +1,56 @@
+// Copyright (c) quickfixengine.org  All rights reserved.
+//
+// This file may be distributed under the terms of the quickfixengine.org
+// license as defined by quickfixengine.org and appearing in the file
+// LICENSE included in the packaging of this file.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
+// THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// See http://www.quickfixengine.org/LICENSE for licensing information.
+//
+// Contact ask@quickfixengine.org if any conditions of this licensing
+// are not clear to you.
+
+package quickfix
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestPR514(t *testing.T) {
+	sessionID := SessionID{
+		BeginString:  BeginStringFIX42,
+		TargetCompID: "BigCorp",
+		TargetSubID:  "acceptor",
+		SenderCompID: "SmallCorp",
+		SenderSubID:  "initiator",
+	}
+	storeFactory := NewMemoryStoreFactory()
+	store, err := storeFactory.Create(sessionID)
+	if err != nil {
+		t.Error(err)
+	}
+	s := &session{
+		sessionID: sessionID,
+		store:     store,
+	}
+	if err := registerSession(s); err != nil {
+		t.Error(err)
+	}
+
+	msg := NewMessage()
+	msg.Header.SetString(tagBeginString, sessionID.BeginString)
+	msg.Header.SetString(tagTargetCompID, sessionID.TargetCompID)
+	msg.Header.SetString(tagTargetSubID, sessionID.TargetSubID)
+	msg.Header.SetString(tagSenderCompID, sessionID.SenderCompID)
+	msg.Header.SetString(tagSenderSubID, sessionID.SenderSubID)
+
+	if err := Send(msg); err != nil {
+		if errors.Is(err, errUnknownSession) {
+			t.Errorf("Unable to find registered session: %s", err)
+		}
+	}
+}