added skeletal tacplus/xtacacs dissector

svn path=/trunk/; revision=1191

1 files changed, 152 insertions, 0 deletions

diff --git a/packet-tacacs.c b/packet-tacacs.c
new file mode 100644
index 0000000000..58391d8e17
--- /dev/null
+++ b/packet-tacacs.c
@@ -0,0 +1,152 @@
+/* packet-tacacs.c
+ * Routines for cisco tacacs/tacplus/AAA packet dissection
+ *
+ * $Id: packet-tacacs.c,v 1.1 1999/12/03 21:50:29 nneul Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@unicom.net>
+ * Copyright 1998 Gerald Combs
+ *
+ * Copied from packet-tftp.c
+ * 
+ * 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>
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+
+#include <string.h>
+#include <glib.h>
+#include "packet.h"
+
+static int proto_tacacs = -1;
+static int hf_tacacs_request = -1;
+static int hf_tacacs_response = -1;
+static int hf_tacacs_version = -1;
+
+static gint ett_tacacs = -1;
+
+void
+dissect_tacacs(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
+{
+	proto_tree      *tacacs_tree, *ti;
+
+	if (check_col(fd, COL_PROTOCOL))
+	col_add_str(fd, COL_PROTOCOL, "TACACS");
+
+	if (check_col(fd, COL_INFO))
+	{
+		col_add_fstr(fd, COL_INFO, "%s", 
+			(pi.match_port == pi.destport) ? "Request" : "Response");	  
+	}
+
+	if (tree) 
+	{
+		ti = proto_tree_add_item(tree, proto_tacacs, offset, END_OF_FRAME, NULL);
+		tacacs_tree = proto_item_add_subtree(ti, ett_tacacs);
+
+		proto_tree_add_item(tacacs_tree, hf_tacacs_version, 0, 0, "XTacacs");
+
+		if (pi.match_port == pi.destport)
+		{
+		        proto_tree_add_item_hidden(tacacs_tree, hf_tacacs_request,
+						   offset, END_OF_FRAME, TRUE);
+			proto_tree_add_text(tacacs_tree, offset, 
+				END_OF_FRAME, "Request: <opaque data>" );
+		}
+		else
+		{
+		        proto_tree_add_item_hidden(tacacs_tree, hf_tacacs_response,
+						   offset, END_OF_FRAME, TRUE);
+			proto_tree_add_text(tacacs_tree, offset, 
+				END_OF_FRAME, "Response: <opaque data>");
+		}
+	}
+}
+
+void
+dissect_tacplus(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
+{
+	proto_tree      *tacacs_tree, *ti;
+
+	if (check_col(fd, COL_PROTOCOL))
+	col_add_str(fd, COL_PROTOCOL, "TACACS");
+
+	if (check_col(fd, COL_INFO))
+	{
+		col_add_fstr(fd, COL_INFO, "%s", 
+			(pi.match_port == pi.destport) ? "Request" : "Response");	  
+	}
+
+	if (tree) 
+	{
+		ti = proto_tree_add_item(tree, proto_tacacs, offset, END_OF_FRAME, NULL);
+		tacacs_tree = proto_item_add_subtree(ti, ett_tacacs);
+
+		proto_tree_add_item(tacacs_tree, hf_tacacs_version, 0, 0, "Tacacs+");
+
+		if (pi.match_port == pi.destport)
+		{
+		        proto_tree_add_item_hidden(tacacs_tree, hf_tacacs_request,
+						   offset, END_OF_FRAME, TRUE);
+			proto_tree_add_text(tacacs_tree, offset, 
+				END_OF_FRAME, "Request: <opaque data>" );
+		}
+		else
+		{
+		        proto_tree_add_item_hidden(tacacs_tree, hf_tacacs_response,
+						   offset, END_OF_FRAME, TRUE);
+			proto_tree_add_text(tacacs_tree, offset, 
+				END_OF_FRAME, "Response: <opaque data>");
+		}
+	}
+}
+
+void
+proto_register_tacacs(void)
+{
+	static hf_register_info hf[] = {
+	  { &hf_tacacs_version,
+	    { "Tacacs Version",           "tacacs.version",
+	      FT_STRING, BASE_NONE, NULL, 0x0,
+	      "xtacacs or tacplus" }},
+	  { &hf_tacacs_response,
+	    { "Response",           "tacacs.response",
+	      FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+	      "TRUE if TACACS response" }},
+	  { &hf_tacacs_request,
+	    { "Request",            "tacacs.request",
+	      FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+	      "TRUE if TACACS request" }}
+	};
+
+	static gint *ett[] = {
+		&ett_tacacs,
+	};
+	proto_tacacs = proto_register_protocol("TACACS", "tacacs");
+	proto_register_field_array(proto_tacacs, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+}