Changeset 1522 for trunk/lib/protocols_transport.c

Timestamp:

02/09/10 13:43:51 (3 years ago)

Author:

salcock

Message:

• Updated licensing and documentation for the protocol decoders
• Moved trace_get_source_mac and trace_get_destination_mac into protocols_l2.c which is much more appropriate
• Re-wrote trace_get_destination_mac to match the behaviour of trace_get_source_mac, especially with regard to ignoring link types that match meta-data headers
• Added TRACE_TYPE_NONDATA handlers to several switch statements

File:

• trunk/lib/protocols_transport.c (modified) (5 diffs, 1 prop)

trunk/lib/protocols_transport.c

@@ +1 @@
+/*
+ * This file is part of libtrace
+ *
+ * Copyright (c) 2007,2008,2009,2010 The University of Waikato, Hamilton, 
+ * New Zealand.
+ *
+ * Authors: Daniel Lawson 
+ *          Perry Lorier
+ *          Shane Alcock 
+ *          
+ * All rights reserved.
+ *
+ * This code has been developed by the University of Waikato WAND 
+ * research group. For further information please see http://www.wand.net.nz/
+ *
+ * libtrace is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * libtrace is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libtrace; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * $Id$
+ *
+ */
+
+
 #include "libtrace.h"
 #include "protocols.h"
@@ -4 +38 @@
 #include <stdlib.h>
 #include <stdio.h> // fprintf
+
+/* This file contains all the protocol decoding functions for transport layer
+ * protocols. This includes functions for access port numbers.
+ *
+ * Supported protocols include (but are not limited to):
+ *      TCP
+ *      UDP
+ *      ICMP
+ */
 
 DLLEXPORT void *trace_get_transport(const libtrace_packet_t *packet, 
@@ -179 +222 @@
 }
 
-/* Return the client port
+/* Return the source port
  */
 DLLEXPORT uint16_t trace_get_source_port(const libtrace_packet_t *packet)
@@ -189 +232 @@
                         &proto, &remaining);
 
-        /* snapped too early */
+        /* Snapped too early */
         if (remaining<2)
                 return 0;
@@ -211 +254 @@
                 (struct ports_t*)trace_get_transport((libtrace_packet_t*)packet,
                         &proto, &remaining);
-        /* snapped to early */
+        /* Snapped too early */
         if (remaining<4)
                 return 0;