[GNUnet-SVN] r34607 - gnunet/src/cadet

[gnunet]

Author: bartpolot
Date: 2014-12-15 08:18:16 +0100 (Mon, 15 Dec 2014)
New Revision: 34607

Modified:
   gnunet/src/cadet/gnunet-service-cadet_tunnel.c
Log:
- check KX context at PONG

Modified: gnunet/src/cadet/gnunet-service-cadet_tunnel.c
===================================================================
--- gnunet/src/cadet/gnunet-service-cadet_tunnel.c      2014-12-15 07:18:14 UTC 
(rev 34606)
+++ gnunet/src/cadet/gnunet-service-cadet_tunnel.c      2014-12-15 07:18:16 UTC 
(rev 34607)
@@ -1921,8 +1921,13 @@
     GNUNET_STATISTICS_update (stats, "# duplicate PONG messages", 1, 
GNUNET_NO);
     return;
   }
+  if (NULL == t->kx_ctx)
+  {
+    GNUNET_STATISTICS_update (stats, "# stray PONG messages", 1, GNUNET_NO);
+    return;
+  }
+
   t_decrypt (t, &challenge, &msg->nonce, sizeof (uint32_t), msg->iv);
-
   if (challenge != t->kx_ctx->challenge)
   {
     LOG (GNUNET_ERROR_TYPE_WARNING, "Wrong PONG challenge on %s\n", GCT_2s 
(t));