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-rw-r--r--nest/locks.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/nest/locks.h b/nest/locks.h
index e465bf55..892d3c6b 100644
--- a/nest/locks.h
+++ b/nest/locks.h
@@ -43,6 +43,7 @@ void olock_init(void);
#define OBJLOCK_UDP 1 /* UDP port */
#define OBJLOCK_TCP 2 /* TCP port */
+#define OBJLOCK_IP 3 /* IP protocol */
#define OLOCK_STATE_FREE 0
#define OLOCK_STATE_LOCKED 1