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/* packet-hpteam.c
* Routines for HP Teaming heartbeat dissection
* Copyright 2009, Nathan Hartwell <nhartwell@gmail.com>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include <epan/oui.h>
#include <string.h>
#include <packet-llc.h>
static int proto_hpteam = -1;
/* Handle of the "data" subdissector */
static dissector_handle_t data_handle;
/* Known HP NIC teaming PID values */
static const value_string hpteam_pid_vals[] = {
{ 0x0002, "Hewlett-Packard" },
{ 0, NULL }
};
static gint hf_hpteam = -1;
static gint hf_llc_hpteam_pid = -1;
/* These are the ids of the subtrees that we may be creating */
static gint ett_hpteam = -1;
static void
dissect_hpteam(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *hpteam_item;
proto_tree *hpteam_tree;
guint32 offset = 0;
const char *strPtr, *HP_Mac;
const guint8 *mac_addr;
mac_addr = pinfo->dl_dst.data;
strPtr = ether_to_str(mac_addr);
HP_Mac = "03:00:c7:00:00:ee";
/*
* Check to see if SNAP frame is a HP Teaming frame or
* if it is really just SNAP
*/
if (memcmp(strPtr, HP_Mac, 17) == 0) {
mac_addr = pinfo->dl_src.data;
strPtr = ether_to_str(mac_addr);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "HP NIC Team");
/* Clear out stuff in the info column */
col_set_str(pinfo->cinfo, COL_INFO, "HP NIC Teaming Heartbeat; ");
col_append_fstr(pinfo->cinfo, COL_INFO, "Port MAC = %s ", strPtr);
if (tree) { /* we are being asked for details */
hpteam_item = proto_tree_add_item(tree, proto_hpteam, tvb, 0, -1, ENC_NA);
hpteam_tree = proto_item_add_subtree(hpteam_item, ett_hpteam);
proto_tree_add_item(hpteam_tree, hf_hpteam, tvb, offset, 58, ENC_NA);
}
}
else {
call_dissector(data_handle, tvb, pinfo, tree);
}
}
void proto_register_hpteam(void)
{
static hf_register_info hf_pid = {
&hf_llc_hpteam_pid,
{ "PID", "llc.hpteam_pid", FT_UINT16, BASE_HEX,
VALS(hpteam_pid_vals), 0x0, NULL, HFILL }
};
static hf_register_info hf_data[] = {
{&hf_hpteam,
{ "Proprietary Data", "hpteam.data", FT_BYTES, BASE_NONE,
NULL, 0x0, NULL, HFILL }}
};
static gint *ett[] = {
&ett_hpteam
};
proto_hpteam = proto_register_protocol ("HP NIC Teaming Heartbeat", "HPTEAM", "hpteam");
/*Tied into the LLC dissector so register the OUI with LLC*/
llc_add_oui(OUI_HP_2, "llc.hpteam_pid", "Hewlett Packard OUI PID", &hf_pid);
proto_register_field_array(proto_hpteam, hf_data, array_length(hf_data));
proto_register_subtree_array(ett, array_length(ett));
register_dissector("hpteam", dissect_hpteam, proto_hpteam);
}
void proto_reg_handoff_hpteam(void)
{
dissector_handle_t hpteam_handle;
data_handle = find_dissector("data");
hpteam_handle = find_dissector("hpteam");
/* Register dissector to key off of known PID / OUI combination */
dissector_add_uint("llc.hpteam_pid", 0x0002, hpteam_handle);
}
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