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