From Jochen Friedrich: add support for:

	HP extended 802.2 LLC

	HP-UX remote management over HP extended 802.2 LLC

	SNMP over HP extended 802.2 LLC.

svn path=/trunk/; revision=7253

1 files changed, 132 insertions, 0 deletions

diff --git a/packet-hpext.c b/packet-hpext.c
new file mode 100644
index 0000000000..0576a14a4f
--- /dev/null
+++ b/packet-hpext.c
@@ -0,0 +1,132 @@
+/* packet-hpext.c
+ * Routines for HP extended IEEE 802.2 LLC layer
+ * Jochen Friedrich <jochen@scram.de>
+ *
+ * $Id: packet-hpext.c,v 1.1 2003/03/02 21:52:16 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <glib.h>
+#include <epan/packet.h>
+#include "xdlc.h"
+#include "etypes.h"
+#include "llcsaps.h"
+#include "packet-hpext.h"
+
+static dissector_table_t subdissector_table;
+
+static dissector_handle_t data_handle;
+
+static int proto_hpext = -1;
+
+static int hf_hpext_dxsap = -1;
+static int hf_hpext_sxsap = -1;
+
+static gint ett_hpext = -1;
+
+const value_string xsap_vals[] = {
+	{ HPEXT_DXSAP,  "RBOOT Destination Service Access Point" },
+	{ HPEXT_SXSAP,  "RBOOT Source Service Access Point" },
+	{ HPEXT_SNMP,   "SNMP" },
+	{ 0x00,         NULL }
+};
+
+static void
+dissect_hpext(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+	proto_tree	*hpext_tree = NULL;
+	proto_item	*ti = NULL;
+	guint16		dxsap, sxsap;
+	tvbuff_t	*next_tvb;
+
+	if (check_col(pinfo->cinfo, COL_PROTOCOL)) {
+		col_set_str(pinfo->cinfo, COL_PROTOCOL, "HPEXT");
+	}
+
+	dxsap = tvb_get_ntohs(tvb, 3);
+	sxsap = tvb_get_ntohs(tvb, 5);
+
+	if (tree) {
+		ti = proto_tree_add_item(tree, proto_hpext, tvb, 0, 7, FALSE);
+		hpext_tree = proto_item_add_subtree(ti, ett_hpext);
+		proto_tree_add_text(hpext_tree, tvb, 0, 3, "Reserved");
+		proto_tree_add_uint(hpext_tree, hf_hpext_dxsap, tvb, 3,
+			2, dxsap);
+		proto_tree_add_uint(hpext_tree, hf_hpext_sxsap, tvb, 5,
+			2, sxsap);
+	}
+
+	if (check_col(pinfo->cinfo, COL_INFO))
+		col_append_fstr(pinfo->cinfo, COL_INFO,
+		    "; HPEXT; DXSAP %s, SXSAP %s",
+		    val_to_str(dxsap, xsap_vals, "%04x"),
+		    val_to_str(sxsap, xsap_vals, "%04x"));
+
+	if (tvb_length_remaining(tvb, 7) > 0) {
+		next_tvb = tvb_new_subset(tvb, 7, -1, -1);
+		if (!dissector_try_port(subdissector_table,
+		    dxsap, next_tvb, pinfo, tree)) {
+			call_dissector(data_handle, next_tvb, pinfo, tree);
+		}
+	}
+}
+
+void
+proto_register_hpext(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_hpext_dxsap,
+		{ "DXSAP",	"hpext.dxsap", FT_UINT16, BASE_HEX,
+			VALS(xsap_vals), 0x0, "", HFILL }},
+
+		{ &hf_hpext_sxsap,
+		{ "SXSAP", "hpext.sxsap", FT_UINT16, BASE_HEX,
+			VALS(xsap_vals), 0x0, "", HFILL }},
+	};
+	static gint *ett[] = {
+		&ett_hpext,
+	};
+
+	proto_hpext = proto_register_protocol(
+	    "HP Extended Local-Link Control", "HPEXT", "hpext");
+	proto_register_field_array(proto_hpext, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+/* subdissector code */
+	subdissector_table = register_dissector_table("hpext.dxsap",
+	  "HPEXT XSAP", FT_UINT16, BASE_HEX);
+
+	register_dissector("hpext", dissect_hpext, proto_hpext);
+}
+
+void
+proto_reg_handoff_hpext(void)
+{
+	dissector_handle_t hpext_handle;
+
+	data_handle = find_dissector("data");
+
+	hpext_handle = find_dissector("hpext");
+	dissector_add("llc.dsap", SAP_HPEXT, hpext_handle);
+}