forked from osmocom/wireshark
1fb3bc7c86
svn path=/trunk/; revision=17091
195 lines
5.5 KiB
C
195 lines
5.5 KiB
C
/* packet-msnlb.c
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* Routines for MS NLB dissection
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gmodule.h>
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#include <epan/packet.h>
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#include <epan/proto.h>
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#include <epan/etypes.h>
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#include "packet-smb-common.h"
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/* Initialize the protocol and registered fields */
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static int proto_msnlb = -1;
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static int hf_msnlb_unknown = -1;
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static int hf_msnlb_hpn = -1;
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static int hf_msnlb_cls_virt_ip = -1;
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static int hf_msnlb_host_ip = -1;
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static int hf_msnlb_count = -1;
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static int hf_msnlb_host_name = -1;
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/* Initialize the subtree pointers */
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static gint ett_msnlb = -1;
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/* Code to actually dissect the packets */
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static void
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dissect_msnlb(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *ti;
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proto_tree *msnlb_tree;
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guint16 offset = 0;
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guint8 type = 0; /* Blatent assumption of name and size */
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "MS NLB");
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if (check_col(pinfo->cinfo, COL_INFO)) {
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col_clear(pinfo->cinfo, COL_INFO);
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col_append_fstr(pinfo->cinfo, COL_INFO, "MS NLB heartbeat");
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}
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if (tree) {
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ti = proto_tree_add_item(tree, proto_msnlb, tvb, 0, -1, FALSE);
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msnlb_tree = proto_item_add_subtree(ti, ett_msnlb);
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type = tvb_get_guint8(tvb, offset);
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_hpn, tvb, offset, 4, TRUE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_cls_virt_ip, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_host_ip, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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switch (type) {
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case 0xc0:
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offset = display_unicode_string(tvb, msnlb_tree, offset, hf_msnlb_host_name, NULL);
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break;
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case 0xbf:
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_count, tvb, offset, 4, TRUE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, 4, FALSE);
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offset += 4;
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default:
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proto_tree_add_item(msnlb_tree, hf_msnlb_unknown, tvb, offset, tvb_length_remaining(tvb, offset), FALSE);
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offset += 4;
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}
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}
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}
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void
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proto_register_msnlb(void)
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{
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static hf_register_info hf[] = {
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{ &hf_msnlb_unknown,
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{ "Unknown", "msnlb.unknown",
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FT_BYTES, BASE_HEX,
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NULL, 0,
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"", HFILL }
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},
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{ &hf_msnlb_hpn,
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{ "Host Priority Number", "msnlb.hpn",
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FT_UINT32, BASE_DEC,
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NULL, 0,
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"Host Priority Number", HFILL }
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},
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{ &hf_msnlb_host_ip,
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{ "Host IP", "msnlb.host_ip",
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FT_IPv4, BASE_HEX,
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NULL, 0,
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"Host IP address", HFILL }
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},
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{ &hf_msnlb_cls_virt_ip,
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{ "Cluster Virtual IP", "msnlb.cluster_virtual_ip",
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FT_IPv4, BASE_HEX,
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NULL, 0,
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"Cluster Virtual IP address", HFILL }
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},
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{ &hf_msnlb_count,
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{ "Count", "msnlb.count",
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FT_UINT32, BASE_HEX,
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NULL, 0,
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"Count", HFILL }
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},
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{ &hf_msnlb_host_name,
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{ "Host name", "msnlb.host_name",
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FT_STRING, BASE_NONE,
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NULL, 0,
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"Host name", HFILL }
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}
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};
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static gint *ett[] = {
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&ett_msnlb
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};
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proto_msnlb = proto_register_protocol("MS Network Load Balancing", "MS NLB", "msnlb");
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proto_register_field_array(proto_msnlb, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_msnlb(void)
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{
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dissector_handle_t msnlb_handle;
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msnlb_handle = create_dissector_handle(dissect_msnlb, proto_msnlb);
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dissector_add("ethertype", ETHERTYPE_MS_NLB_HEARTBEAT, msnlb_handle);
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}
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