1 files changed, 12 insertions, 0 deletions

diff --git a/src/include/gnunet_tun_lib.h b/src/include/gnunet_tun_lib.h
index 7d1e7cfed..276a42144 100644
--- a/src/include/gnunet_tun_lib.h
+++ b/src/include/gnunet_tun_lib.h
@@ -185,6 +185,18 @@ struct GNUNET_TUN_IPv6Header
 
 
 /**
+ * TCP flags.
+ */
+#define GNUNET_TUN_TCP_FLAGS_FIN 1
+#define GNUNET_TUN_TCP_FLAGS_SYN 2
+#define GNUNET_TUN_TCP_FLAGS_RST 4
+#define GNUNET_TUN_TCP_FLAGS_PSH 8
+#define GNUNET_TUN_TCP_FLAGS_ACK 16
+#define GNUNET_TUN_TCP_FLAGS_URG 32
+#define GNUNET_TUN_TCP_FLAGS_ECE 64
+#define GNUNET_TUN_TCP_FLAGS_CWR 128
+
+/**
  * TCP packet header.
  */
 struct GNUNET_TUN_TcpHeader