From 5eba1e1f6feadb3f7efb1261bd65e1e9e40b7f2b Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@tinc-vpn.org>
Date: Wed, 27 Mar 2002 15:01:37 +0000
Subject: [PATCH] Limit the amount of packets in a queue to 8.

---
 src/net.h        | 4 +++-
 src/net_packet.c | 5 ++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/net.h b/src/net.h
index f1493eb1..922c5cf1 100644
--- a/src/net.h
+++ b/src/net.h
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: net.h,v 1.9.4.48 2002/03/22 11:43:48 guus Exp $
+    $Id: net.h,v 1.9.4.49 2002/03/27 15:01:36 guus Exp $
 */
 
 #ifndef __TINC_NET_H__
@@ -42,6 +42,8 @@
 
 #define MAXSOCKETS 128 /* Overkill... */
 
+#define MAXQUEUELENGTH 8 /* Maximum number of packats in a single queue */
+
 typedef struct mac_t
 {
   unsigned char x[6];
diff --git a/src/net_packet.c b/src/net_packet.c
index 7216fb5f..fd2ae067 100644
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: net_packet.c,v 1.1.2.12 2002/03/25 15:51:58 guus Exp $
+    $Id: net_packet.c,v 1.1.2.13 2002/03/27 15:01:37 guus Exp $
 */
 
 #include "config.h"
@@ -212,6 +212,9 @@ cp
 
       list_insert_tail(n->queue, copy);
 
+      if(n->queue->count > MAXQUEUELENGTH)
+        list_delete_head(n->queue);
+
       if(!n->status.waitingforkey)
         send_req_key(n->nexthop->connection, myself, n);