From Akira Endoh: Wellfleet Breath of Life support.

svn path=/trunk/; revision=7210

1 files changed, 126 insertions, 0 deletions

diff --git a/packet-bofl.c b/packet-bofl.c
new file mode 100644
index 0000000000..6d74fc2351
--- /dev/null
+++ b/packet-bofl.c
@@ -0,0 +1,126 @@
+/* packet-bofl.c
+ * Routines for Wellfleet BOFL dissection
+ * Author: Endoh Akira (endoh@netmarks.co.jp)
+ *
+ * $Id: packet-bofl.c,v 1.1 2003/02/27 02:45:42 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@unicom.net>
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <glib.h>
+
+#ifdef NEED_SNPRINTF_H
+# include "snprintf.h"
+#endif
+
+#include <epan/packet.h>
+
+#define ETHER_TYPE_BOFL 0x8102
+#define BOFL_MIN_LEN    8
+
+/* Initialize the protocol and registered fields */
+static int proto_bofl       = -1;
+static int hf_bofl_pdu      = -1;
+static int hf_bofl_sequence = -1;
+
+/* Initialize the subtree pointers */
+static gint ett_bofl = -1;
+
+/* Code to actually dissect the packets */
+void
+dissect_bofl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+    proto_item  *ti;
+    proto_tree  *bofl_tree;
+    const guint len = tvb_length(tvb);
+    guint32     pdu, sequence;
+
+    if (check_col(pinfo->cinfo, COL_PROTOCOL))
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "BOFL");
+
+    if (len < BOFL_MIN_LEN) {
+	if (check_col(pinfo->cinfo, COL_INFO))
+	    col_set_str(pinfo->cinfo, COL_INFO, "(packet too short)");
+	    proto_tree_add_text(tree, tvb, 0, len,
+		"Wellfleet Breath of Life (packet too short)");
+	    return;
+    }
+
+    pdu = tvb_get_ntohl(tvb, 0);
+    sequence = tvb_get_ntohl(tvb, 4);
+    if (check_col(pinfo->cinfo, COL_INFO)) {
+	col_clear(pinfo->cinfo, COL_INFO);
+	col_add_fstr(pinfo->cinfo, COL_INFO,
+	    "PDU: 0x%x  Sequence: %d", pdu, sequence);
+    }
+    if (tree) {
+	ti = proto_tree_add_item(tree, proto_bofl, tvb, 0, len, FALSE);
+	bofl_tree = proto_item_add_subtree(ti, ett_bofl);
+	proto_tree_add_uint(bofl_tree, hf_bofl_pdu, tvb, 0, 4, pdu);
+	proto_tree_add_uint(bofl_tree, hf_bofl_sequence, tvb, 4, 4, sequence);
+	if (len > 8)
+	    proto_tree_add_text(bofl_tree, tvb, 8, len-8,
+		"Padding (%d byte)", len-8);
+    }
+}
+
+
+void
+proto_register_bofl(void)
+{
+    static hf_register_info hf[] = {
+	{ &hf_bofl_pdu,
+	  { "PDU", "bofl.pdu",
+	    FT_UINT32, BASE_HEX, NULL, 0,
+	    "PDU; normally equals 0x01010000 or 0x01011111", HFILL }
+	},
+	{ &hf_bofl_sequence,
+	  { "Sequence", "bofl.sequence",
+	    FT_UINT32, BASE_DEC, NULL, 0,
+	    "incremental counter", HFILL }
+	}
+    };
+
+    static gint *ett[] = {
+	&ett_bofl,
+    };
+
+    proto_bofl = proto_register_protocol("Wellfleet Breath of Life",
+	"BOFL", "bofl");
+    proto_register_field_array(proto_bofl, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+}
+
+
+void
+proto_reg_handoff_bofl(void)
+{
+    dissector_handle_t bofl_handle;
+
+    bofl_handle = create_dissector_handle(dissect_bofl, proto_bofl);
+    dissector_add("ethertype", ETHER_TYPE_BOFL, bofl_handle);
+}