From 84dc557dc24e981d8c9a85b1bb087a4d803225a4 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Mon, 30 Jan 2012 21:10:02 +0000
Subject: [PATCH] -docu

---
 src/include/gnunet_tun_lib.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/include/gnunet_tun_lib.h b/src/include/gnunet_tun_lib.h
index 4e824a9f5..5bac236d9 100644
--- a/src/include/gnunet_tun_lib.h
+++ b/src/include/gnunet_tun_lib.h
@@ -181,7 +181,7 @@ struct GNUNET_TUN_TcpHeader
   uint32_t ack GNUNET_PACKED;
 #if __BYTE_ORDER == __LITTLE_ENDIAN       
   /**
-   * Reserved.
+   * Reserved.  Must be zero.
    */
   unsigned int reserved : 4 GNUNET_PACKED;
   /**
@@ -194,10 +194,14 @@ struct GNUNET_TUN_TcpHeader
    */
   unsigned int off : 4 GNUNET_PACKED;
   /**
-   * Reserved.
+   * Reserved.  Must be zero.
    */
   unsigned int reserved : 4 GNUNET_PACKED;
 #endif        
+
+  /**
+   * Flags (SYN, FIN, ACK, etc.)
+   */
   uint8_t flags;
 
   /**
-- 
2.25.1