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/* packet-dhis.c
* Routines for DHIS (Dynamic Host Information Services) packet disassembly
* see http://dhis.sourceforge.net/
* Olivier Abad <abad@daba.dhis.net>
*
* $Id: packet-dhis.c,v 1.2 2000/02/23 22:41:15 oabad Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 2000
*
*
* 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
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
/*#include <string.h>
#include <ctype.h>
#include <time.h>*/
#include <glib.h>
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include "packet.h"
#include "dfilter.h"
#include "packet-dhis.h"
static int proto_dhis = -1;
static int hf_dhis_version = -1;
static int hf_dhis_encrypt = -1;
static int hf_dhis_hostid = -1;
static int hf_dhis_msgtype = -1;
static int hf_dhis_opcode = -1;
static int hf_dhis_ipaddr = -1;
static int hf_dhis_status = -1;
static int ett_dhis = -1;
static const value_string vals_dhis_version[] = {
{ DHIS_VERSION_ERROR, "Protocol Error" },
{ DHIS_VERSION_4, "4" },
{ DHIS_VERSION_5, "5" },
{ 0, NULL}
};
static const value_string vals_dhis_encrypt[] = {
{ DHIS_ENCRYPT_ERROR, "Encryption Error" },
{ DHIS_ENCRYPT_PLAINTEXT, "Plain text" },
{ DHIS_ENCRYPT_BLOWFISH, "Blowfish" },
{ 0, NULL}
};
static const value_string vals_dhis_msgtype[] = {
{ DHIS_MESSAGE_ERROR, "Message Error" },
{ DHIS_UPDATE_QUERY, "Update Query" },
{ DHIS_UPDATE_REPLY, "Update Reply" },
{ DHIS_ALIVE_QUERY, "Alive Query" },
{ DHIS_ALIVE_REPLY, "Alive Reply" },
{ 0, NULL}
};
static const value_string vals_dhis_opcode[] = {
{ DHIS_MARK_ONLINE, "Mark online" },
{ DHIS_MARK_OFFLINE, "Mark offline" },
{ 0, NULL}
};
static const value_string vals_dhis_status[] = {
{ DHIS_UPDATE_SUCCEEDED, "Update succeeded" },
{ DHIS_UPDATE_FAILED, "Update failed" },
{ DHIS_INVALID_PASSWORD, "Invalid password" },
{ DHIS_INVALID_ACCOUNT, "Invalid account" },
{ DHIS_INVALID_OPCODE, "Invalid opcode" },
{ 0, NULL}
};
void
dissect_dhis(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
{
proto_tree *dhis_tree;
proto_item *ti;
if (check_col(fd, COL_PROTOCOL)) {
/*
* Indicate what kind of message this is.
*/
col_add_str (fd, COL_PROTOCOL, "DHIS");
}
if (tree) {
ti = proto_tree_add_item(tree, proto_dhis, offset,
END_OF_FRAME - offset, NULL);
dhis_tree = proto_item_add_subtree(ti, ett_dhis);
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_version, offset, 4, pntohl(pd+offset));
offset += 4;
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_encrypt, offset, 4, pntohl(pd+offset));
if (!BYTES_ARE_IN_FRAME(offset+4, 4)) {
proto_tree_add_text(dhis_tree, offset+4, END_OF_FRAME-offset-4, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_hostid, offset+4, 4, pntohl(pd+offset+4));
if (pntohl(pd+offset) == DHIS_ENCRYPT_PLAINTEXT) {
offset += 8;
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_msgtype, offset, 4, pntohl(pd+offset));
switch (pntohl(pd+offset)) {
case DHIS_MESSAGE_ERROR :
offset += 4;
if (check_col(fd, COL_INFO)) col_add_str (fd, COL_INFO, "Message Error");
break;
case DHIS_UPDATE_QUERY :
offset += 4;
if (check_col(fd, COL_INFO)) col_add_str (fd, COL_INFO, "Update Query");
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_opcode, offset, 4, pntohl(pd+offset));
offset += 4;
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_ipaddr, offset, 4, pntohl(pd+offset));
break;
case DHIS_UPDATE_REPLY :
offset += 4;
if (check_col(fd, COL_INFO)) col_add_str (fd, COL_INFO, "Update Reply");
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_item(dhis_tree, hf_dhis_status, offset, 4, pntohl(pd+offset));
break;
case DHIS_ALIVE_QUERY :
offset += 4;
if (check_col(fd, COL_INFO)) col_add_str (fd, COL_INFO, "Alive Query");
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_text(dhis_tree, offset, 4, "Dummy : %u", pntohl(pd+offset));
break;
case DHIS_ALIVE_REPLY :
offset += 4;
if (check_col(fd, COL_INFO)) col_add_str (fd, COL_INFO, "Alive Reply");
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_text(dhis_tree, offset, 4, "Dummy : %u", pntohl(pd+offset));
break;
default :
if (check_col(fd, COL_INFO)) col_add_str (fd, COL_INFO, "Unknwon type");
if (!BYTES_ARE_IN_FRAME(offset, 4)) {
proto_tree_add_text(dhis_tree, offset, END_OF_FRAME-offset, "Frame too short");
return;
}
proto_tree_add_text(dhis_tree, offset, 4, "Unknown type : %u", pntohl(pd+offset));
}
}
}
}
void
proto_register_dhis(void)
{
static hf_register_info hf_dhis[] = {
{ &hf_dhis_version,
{ "Version", "dhis.version", FT_UINT32, BASE_DEC, VALS(vals_dhis_version), 0x0,
"Version" } },
{ &hf_dhis_encrypt,
{ "Encryption", "dhis.encrypt", FT_UINT32, BASE_DEC, VALS(vals_dhis_encrypt), 0x0,
"Encryption type" } },
{ &hf_dhis_hostid,
{ "Hostid", "dhis.hostid", FT_UINT32, BASE_DEC, NULL, 0x0,
"Host ID" } },
{ &hf_dhis_msgtype,
{ "Message type", "dhis.msgtype", FT_UINT32, BASE_DEC, VALS(vals_dhis_msgtype), 0x0,
"Message Type" } },
{ &hf_dhis_opcode,
{ "Opcode", "dhis.opcode", FT_UINT32, BASE_DEC, VALS(vals_dhis_opcode), 0x0,
"Update query opcode" } },
{ &hf_dhis_ipaddr,
{ "IP addres", "dhis.ipaddr", FT_IPv4, BASE_NONE, NULL, 0x0,
"IP address" } },
{ &hf_dhis_status,
{ "Status", "dhis.status", FT_UINT32, BASE_DEC, VALS(vals_dhis_status), 0x0,
"Update reply status" } }
};
static gint *ett[] = { &ett_dhis };
proto_dhis = proto_register_protocol("Dynamic Host Information Service", "dhis");
proto_register_field_array(proto_dhis, hf_dhis, array_length(hf_dhis));
proto_register_subtree_array(ett, array_length(ett));
}
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