From Duncan Laurie: IPMI-over-LAN support.

svn path=/trunk/; revision=7538

1 files changed, 189 insertions, 0 deletions

diff --git a/packet-rmcp.c b/packet-rmcp.c
new file mode 100644
index 0000000000..1f083cf69a
--- /dev/null
+++ b/packet-rmcp.c
@@ -0,0 +1,189 @@
+/* packet-rmcp.c
+ * Routines for RMCP packet dissection
+ *
+ * Duncan Laurie <duncan@sun.com>
+ *
+ * $Id: packet-rmcp.c,v 1.1 2003/04/23 00:24:36 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * 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 <glib.h>
+#include <epan/packet.h>
+
+/*
+ * See
+ *
+ *	http://www.dmtf.org/standards/standard_alert.php
+ *
+ * (the ASF specification includes RMCP)
+ */
+
+static int proto_rmcp = -1;
+static int hf_rmcp_version = -1;
+static int hf_rmcp_sequence = -1;
+static int hf_rmcp_class = -1;
+static int hf_rmcp_type = -1;
+
+static gint ett_rmcp = -1;
+static gint ett_rmcp_typeclass = -1;
+
+static dissector_handle_t asf_handle;
+static dissector_handle_t ipmi_handle;
+static dissector_table_t rmcp_dissector_table;
+
+#define UDP_PORT_RMCP		623
+#define UDP_PORT_RMCP_SECURE	664
+
+#define RMCP_TYPE_MASK		0x80
+#define RMCP_TYPE_NORM		0x00
+#define RMCP_TYPE_ACK		0x01
+
+static const value_string rmcp_type_vals[] = {
+	{ RMCP_TYPE_NORM,	"Normal RMCP" },
+	{ RMCP_TYPE_ACK,	"RMCP ACK" },
+	{ 0,			NULL }
+};
+
+#define RMCP_CLASS_MASK		0x1f
+#define RMCP_CLASS_ASF		0x06
+#define RMCP_CLASS_IPMI		0x07
+#define RMCP_CLASS_OEM		0x08
+
+static const value_string rmcp_class_vals[] = {
+	{ RMCP_CLASS_ASF,	"ASF" },
+	{ RMCP_CLASS_IPMI,	"IPMI" },
+	{ RMCP_CLASS_OEM,	"OEM" },
+	{ 0,			NULL }
+};
+
+static void
+dissect_rmcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+	proto_tree	*rmcp_tree = NULL, *field_tree;
+	proto_item	*ti, *tf;
+	tvbuff_t	*next_tvb;
+	guint8		class;
+	guint8		type;
+
+	if (check_col(pinfo->cinfo, COL_PROTOCOL))
+		col_set_str(pinfo->cinfo, COL_PROTOCOL, "RMCP");
+	if (check_col(pinfo->cinfo, COL_INFO))
+		col_clear(pinfo->cinfo, COL_INFO);
+
+	/* check RMCP class for normal/ack bit */
+	class = tvb_get_guint8(tvb, 3);
+	type = (class & RMCP_TYPE_MASK) >> 7;
+	class &= RMCP_CLASS_MASK;
+
+	if (check_col(pinfo->cinfo, COL_INFO))
+		col_add_fstr(pinfo->cinfo, COL_INFO, "%s, Class: %s",
+		     val_to_str(type, rmcp_type_vals, "Unknown (0x%02x)"),
+		     val_to_str(class, rmcp_class_vals, "Unknown (0x%02x)"));
+
+	if (tree) {
+		ti = proto_tree_add_protocol_format(tree, proto_rmcp, tvb, 0, 4,
+			 "Remote Management Control Protocol, Class: %s",
+			 val_to_str(class, rmcp_class_vals, "Unknown (0x%02x)"));
+		rmcp_tree = proto_item_add_subtree(ti, ett_rmcp);
+
+		proto_tree_add_item(rmcp_tree, hf_rmcp_version, tvb, 0, 1, TRUE);
+		proto_tree_add_item(rmcp_tree, hf_rmcp_sequence, tvb, 2, 1, TRUE);
+
+		tf = proto_tree_add_text(rmcp_tree, tvb, 3, 1, "Type: %s, Class: %s",
+			 val_to_str(type, rmcp_type_vals, "Unknown (0x%02)"),
+			 val_to_str(class, rmcp_class_vals, "Unknown (0x%02)"));
+
+		field_tree = proto_item_add_subtree(tf, ett_rmcp_typeclass);
+
+		proto_tree_add_item(field_tree, hf_rmcp_class, tvb, 3, 1, TRUE);
+		proto_tree_add_item(field_tree, hf_rmcp_type, tvb, 3, 1, TRUE);
+	}
+
+	next_tvb = tvb_new_subset(tvb, 4, -1, -1);
+
+	switch (class) {
+	case RMCP_CLASS_ASF:
+		call_dissector(asf_handle, next_tvb, pinfo, tree);
+		break;
+	case RMCP_CLASS_IPMI:
+		call_dissector(ipmi_handle, next_tvb, pinfo, tree);
+		break;
+	default:
+		break;
+	}
+}
+
+void
+proto_register_rmcp(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_rmcp_version, {
+			"Version", "rmcp.version",
+			FT_UINT8, BASE_HEX, NULL, 0,
+			"RMCP Version", HFILL }},
+		{ &hf_rmcp_sequence, {
+			"Sequence", "rmcp.sequence",
+			FT_UINT8, BASE_HEX, NULL, 0,
+			"RMCP Sequence", HFILL }},
+		{ &hf_rmcp_class, {
+			"Class", "rmcp.class",
+			FT_UINT8, BASE_HEX,
+			VALS(rmcp_class_vals), RMCP_CLASS_MASK,
+			"RMCP Class", HFILL }},
+		{ &hf_rmcp_type, {
+			"Message Type", "rmcp.type",
+			FT_UINT8, BASE_HEX,
+			VALS(rmcp_type_vals), RMCP_TYPE_MASK,
+			"RMCP Message Type", HFILL }},
+	};
+	static gint *ett[] = {
+		&ett_rmcp,
+		&ett_rmcp_typeclass,
+	};
+
+	proto_rmcp = proto_register_protocol(
+		"Remote Management Control Protocol", "RMCP", "rmcp");
+
+	proto_register_field_array(proto_rmcp, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	register_dissector("rmcp", dissect_rmcp, proto_rmcp);
+
+	rmcp_dissector_table = register_dissector_table(
+		"rmcp.class", "RMCP Class", FT_UINT8, BASE_HEX);
+}
+
+void
+proto_reg_handoff_rmcp(void)
+{
+	dissector_handle_t rmcp_handle;
+	rmcp_handle = create_dissector_handle(dissect_rmcp, proto_rmcp);
+	ipmi_handle = find_dissector("ipmi");
+	asf_handle  = find_dissector("asf");
+	dissector_add("udp.port", UDP_PORT_RMCP, rmcp_handle);
+	dissector_add("udp.port", UDP_PORT_RMCP_SECURE, rmcp_handle);
+}