Add in a notion of "circuits", which are for virtual circuit-oriented

protocols (where there's a virtual circuit ID of some sort in packets)
what conversations are for protocols ultimately running atop
connectionless network layers.  Have circuit type and ID values in the
"packet_info" structure.

Have the Frame Relay dissector set the circuit type and ID values, and
have the Wellfleet compression protocol set up circuit information and
store compression information with the circuit.

svn path=/trunk/; revision=6471

1 files changed, 66 insertions, 0 deletions

diff --git a/epan/circuit.h b/epan/circuit.h
new file mode 100644
index 0000000000..87a04eceac
--- /dev/null
+++ b/epan/circuit.h
@@ -0,0 +1,66 @@
+/* circuit.h
+ * Routines for building lists of packets that are part of a "circuit"
+ *
+ * $Id: circuit.h,v 1.1 2002/10/22 08:43:44 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef __CIRCUIT_H__
+#define __CIRCUIT_H__
+
+#include "packet.h"		/* for circuit dissector type */
+
+/*
+ * Data structure representing a circuit.
+ */
+typedef struct circuit_key {
+	circuit_type ctype;
+	guint32 circuit_id;
+} circuit_key;
+
+typedef struct circuit {
+	struct circuit *next;		/* pointer to next circuit on hash chain */
+	guint32	index;			/* unique ID for circuit */
+	GSList *data_list;		/* list of data associated with circuit */
+	dissector_handle_t dissector_handle;
+					/* handle for protocol dissector client associated with circuit */
+	guint	options;		/* wildcard flags */
+	circuit_key *key_ptr;	/* pointer to the key for this circuit */
+} circuit_t;
+
+extern void circuit_init(void);
+
+extern circuit_t *circuit_new(circuit_type ctype, guint32 circuit_id);
+
+extern circuit_t *find_circuit(circuit_type ctype, guint32 circuit_id);
+
+extern void circuit_add_proto_data(circuit_t *conv, int proto,
+    void *proto_data);
+extern void *circuit_get_proto_data(circuit_t *conv, int proto);
+extern void circuit_delete_proto_data(circuit_t *conv, int proto);
+
+extern void circuit_set_dissector(circuit_t *circuit,
+    dissector_handle_t handle);
+extern gboolean
+try_circuit_dissector(circuit_type ctype, guint32 circuit_id, tvbuff_t *tvb,
+    packet_info *pinfo, proto_tree *tree);
+
+#endif /* circuit.h */
+