snet: Extract PathReplyEntry from Path (#3324)

scionproto · Nov 6, 2019 · 73d2cd9 · 73d2cd9
1 parent eba7482
commit 73d2cd9
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/go/lib/snet/router.go b/go/lib/snet/router.go
@@ -160,6 +160,15 @@ type Path interface {
 	Copy() Path
 }
 
+// PathReplyEntryFromPath extracts PathReplyEntry. If not possible, nil is returned.
+func PathReplyEntryFromPath(p Path) *sciond.PathReplyEntry {
+	pth, ok := p.(*path)
+	if !ok {
+		return nil
+	}
+	return pth.sciondPath.Copy()
+}
+
 var _ Path = (*path)(nil)
 
 type path struct {