![Jörg Mayer](/assets/img/avatar_default.png)
winapi_cleanup tool written by Patrik Stridvall for the wine project. svn path=/trunk/; revision=6117
355 lines
10 KiB
C
355 lines
10 KiB
C
/* packet-rmi.c
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* Routines for java rmiregistry dissection
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* Copyright 2002, Michael Stiller <ms@2scale.net>
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*
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* $Id: packet-rmi.c,v 1.5 2002/08/28 21:00:29 jmayer Exp $
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/strutil.h>
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#include "packet-rmi.h"
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/* Initialize the protocol and registered fields */
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static int proto_rmi = -1;
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static int proto_ser = -1;
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static int hf_rmi_magic = -1;
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static int hf_rmi_version = -1;
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static int hf_rmi_protocol = -1;
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static int hf_rmi_inputmessage = -1;
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static int hf_rmi_outputmessage = -1;
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static int hf_rmi_epid_length = -1;
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static int hf_rmi_epid_hostname = -1;
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static int hf_rmi_epid_port = -1;
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static int hf_ser_magic = -1;
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static int hf_ser_version = -1;
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/* Initialize the subtree pointers */
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static gint ett_rmi = -1;
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static gint ett_rmi_magic = -1;
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static gint ett_rmi_version = -1;
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static gint ett_rmi_protocol = -1;
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static gint ett_rmi_inputmessage = -1;
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static gint ett_rmi_outputmessage = -1;
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static gint ett_rmi_epid_length = -1;
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static gint ett_rmi_epid_hostname = -1;
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static gint ett_rmi_epid_port = -1;
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static gint ett_ser = -1;
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static gint ett_ser_magic = -1;
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static gint ett_ser_version = -1;
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#define TCP_PORT_RMI 1099
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static void
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dissect_rmi(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 *rmi_tree;
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tvbuff_t *next_tvb;
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gint offset;
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gint next_offset;
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int datalen;
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const guchar *data;
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guint16 version, len, port;
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guint8 message, proto;
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rmi_type rmitype;
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char epid_hostname[256];
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offset = 0;
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rmitype = 0;
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/* Make entries in Protocol column and Info column on summary display */
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if (check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "RMI");
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datalen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
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data = tvb_get_ptr(tvb, offset, datalen);
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rmitype = get_rmi_type(data, datalen);
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if (check_col(pinfo->cinfo, COL_INFO)) {
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switch(rmitype) {
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case RMI_OUTPUTSTREAM:
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version = tvb_get_ntohs(tvb,4);
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col_add_fstr(pinfo->cinfo, COL_INFO,
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"JRMI, Version: %d, ", version);
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proto = tvb_get_guint8(tvb, 6);
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col_append_str(pinfo->cinfo, COL_INFO,
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val_to_str(proto, rmi_protocol_str,
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"Unknown protocol"));
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break;
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case RMI_OUTPUTMESSAGE:
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message = tvb_get_guint8(tvb,0);
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col_add_str(pinfo->cinfo, COL_INFO,
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"JRMI, ");
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col_append_str(pinfo->cinfo, COL_INFO,
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val_to_str(message, rmi_output_message_str,
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"Unknown message"));
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break;
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case RMI_INPUTSTREAM:
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message = tvb_get_guint8(tvb,0);
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col_add_str(pinfo->cinfo, COL_INFO,
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"JRMI, ");
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col_append_str(pinfo->cinfo, COL_INFO,
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val_to_str(message, rmi_input_message_str,
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"Unknown message"));
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break;
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case SERIALIZATION_DATA:
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version = tvb_get_ntohs(tvb,2);
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col_add_fstr(pinfo->cinfo, COL_INFO,
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"Serialization data, Version: %d", version);
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break;
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default:
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col_set_str(pinfo->cinfo, COL_INFO, "Continuation");
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break;
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}
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}
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if (tree) {
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ti = proto_tree_add_item(tree, proto_rmi, tvb, 0, -1, FALSE);
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rmi_tree = proto_item_add_subtree(ti, ett_rmi);
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switch(rmitype) {
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case RMI_OUTPUTSTREAM:
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proto_tree_add_uint(rmi_tree, hf_rmi_magic,
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tvb, offset, 4, tvb_get_ntohl(tvb,0));
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proto_tree_add_uint(rmi_tree, hf_rmi_version,
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tvb, offset + 4, 2, tvb_get_ntohs(tvb,4));
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proto_tree_add_string(rmi_tree, hf_rmi_protocol,
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tvb, offset + 6, 1,
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val_to_str(tvb_get_guint8(tvb, 6),
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rmi_protocol_str,
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"Unknown Protocol"));
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break;
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case RMI_INPUTSTREAM:
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message = tvb_get_guint8(tvb, 0);
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proto_tree_add_string(rmi_tree, hf_rmi_inputmessage,
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tvb, offset, 1,
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val_to_str(message,
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rmi_input_message_str,
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"Unknown Message"));
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if(message == RMI_INPUTSTREAM_MESSAGE_ACK) {
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proto_tree_add_text(rmi_tree, tvb, offset + 1, -1,
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"EndPointIdentifier");
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/* MESSAGE_ACK should include EndpointIdentifier */
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len = tvb_get_ntohs(tvb, 1);
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proto_tree_add_uint(rmi_tree, hf_rmi_epid_length,
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tvb, offset + 1, 2, len);
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memset(epid_hostname, 0, sizeof(epid_hostname));
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if (len < sizeof(epid_hostname)) {
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strncpy(epid_hostname,tvb_get_ptr(tvb, offset + 3, len),
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sizeof(epid_hostname));
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} else {
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strncpy(epid_hostname,
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"<string too long>", sizeof(epid_hostname));
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}
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proto_tree_add_string(rmi_tree, hf_rmi_epid_hostname,
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tvb, offset + 3, strlen(epid_hostname),
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epid_hostname);
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port = tvb_get_ntohs(tvb, offset + len + 5);
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proto_tree_add_uint(rmi_tree, hf_rmi_epid_port,
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tvb, offset + len + 5, 2, port);
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}
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if(message == RMI_INPUTSTREAM_MESSAGE_RETURNDATA) {
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proto_tree_add_text(rmi_tree, tvb, offset + 1, -1,
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"Serialization Data");
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next_tvb = tvb_new_subset(tvb, offset + 1, -1, -1);
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dissect_ser(next_tvb, pinfo, tree);
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}
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break;
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case RMI_OUTPUTMESSAGE:
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message = tvb_get_guint8(tvb, 0);
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proto_tree_add_string(rmi_tree, hf_rmi_outputmessage,
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tvb, offset, 1,
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val_to_str(message,
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rmi_output_message_str,
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"Unknown Message"));
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if(message == RMI_OUTPUTSTREAM_MESSAGE_CALL) {
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proto_tree_add_text(rmi_tree, tvb, offset + 1, -1,
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"Serialization Data");
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/* XXX */
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next_tvb = tvb_new_subset(tvb, offset + 1, -1, -1);
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dissect_ser(next_tvb, pinfo, tree);
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}
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if(message == RMI_OUTPUTSTREAM_MESSAGE_DGCACK) {
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proto_tree_add_text(rmi_tree, tvb, offset + 1, -1,
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"UniqueIdentifier");
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}
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break;
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case SERIALIZATION_DATA:
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dissect_ser(tvb, pinfo, tree);
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break;
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default:
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break;
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}
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}
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}
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static void
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dissect_ser(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 *ser_tree;
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gint offset;
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offset = 0;
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if(tree) {
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ti = proto_tree_add_item(tree, proto_ser, tvb, 0, -1, FALSE);
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ser_tree = proto_item_add_subtree(ti, ett_ser);
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proto_tree_add_uint(ser_tree, hf_ser_magic,
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tvb, offset, 2, tvb_get_ntohs(tvb,0));
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proto_tree_add_uint(ser_tree, hf_ser_version,
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tvb, offset + 2, 2, tvb_get_ntohs(tvb,2));
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}
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}
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static rmi_type
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get_rmi_type(const guchar *data, int datalen)
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{
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guint16 ser_magic;
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if (datalen >= 2) {
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ser_magic = data[0] << 8 | data[1];
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if (ser_magic == SER_STREAM_MAGIC) {
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return SERIALIZATION_DATA;
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}
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}
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if (datalen >= 4) {
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if(strncmp(data, "JRMI", 4) == 0) {
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return RMI_OUTPUTSTREAM;
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}
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}
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if (datalen >= 1) {
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if (data[0] == RMI_INPUTSTREAM_MESSAGE_ACK ||
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data[0] == RMI_INPUTSTREAM_MESSAGE_NOTSUPPORTED ||
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data[0] == RMI_INPUTSTREAM_MESSAGE_RETURNDATA ||
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data[0] == RMI_INPUTSTREAM_MESSAGE_PINGACK) {
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return RMI_INPUTSTREAM;
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}
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}
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if (datalen >= 1) {
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if (data[0] == RMI_OUTPUTSTREAM_MESSAGE_CALL ||
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data[0] == RMI_OUTPUTSTREAM_MESSAGE_PING ||
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data[0] == RMI_OUTPUTSTREAM_MESSAGE_DGCACK) {
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return RMI_OUTPUTMESSAGE;
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}
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}
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return CONTINUATION;
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}
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void
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proto_register_rmi(void)
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{
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static hf_register_info hf[] = {
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{ &hf_rmi_magic,
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{ "Magic", "rmi.magic",
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FT_UINT32, BASE_HEX, NULL, 0x0,
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"RMI Header Magic", HFILL }},
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{ &hf_rmi_version,
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{ "Version", "rmi.version",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"RMI Protocol Version", HFILL }},
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{ &hf_rmi_protocol,
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{ "Protocol","rmi.protocol",
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FT_STRING, BASE_HEX, NULL, 0x0,
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"RMI Protocol Type", HFILL }},
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{ &hf_rmi_inputmessage,
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{ "Input Stream Message", "rmi.inputstream.message",
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FT_STRING, BASE_HEX, NULL, 0x0,
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"RMI Inputstream Message Token", HFILL }},
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{ &hf_rmi_outputmessage,
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{ "Output Stream Message", "rmi.outputstream.message",
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FT_STRING, BASE_HEX, NULL, 0x0,
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"RMI Outputstream Message token", HFILL }},
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{ &hf_rmi_epid_length,
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{ "Length", "rmi.endpoint_id.length",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"RMI Endpointidentifier Length", HFILL }},
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{ &hf_rmi_epid_hostname,
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{ "Hostname", "rmi.endpoint_id.hostname",
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FT_STRING, BASE_HEX, NULL, 0x0,
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"RMI Endpointidentifier Hostname", HFILL }},
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{ &hf_rmi_epid_port,
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{ "Port", "rmi.endpoint_id.port",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"RMI Endpointindentifier Port", HFILL }},
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{ &hf_ser_magic,
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{ "Magic", "rmi.ser.magic",
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FT_UINT16, BASE_HEX, NULL, 0x0,
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"Java Serialization Magic", HFILL }},
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{ &hf_ser_version,
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{ "Version", "rmi.ser.version",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"Java Serialization Version", HFILL }},
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};
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static gint *ett[] = {
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&ett_rmi,
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&ett_rmi_magic,
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&ett_rmi_version,
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&ett_rmi_inputmessage,
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&ett_rmi_outputmessage,
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&ett_rmi_epid_length,
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&ett_rmi_epid_hostname,
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&ett_rmi_epid_port,
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&ett_ser,
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};
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proto_rmi = proto_register_protocol("Java RMI", "RMI", "rmi");
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proto_ser = proto_register_protocol("Java Serialization", "Serialization",
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"serialization");
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proto_register_field_array(proto_rmi, 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_rmi(void)
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{
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dissector_handle_t rmi_handle;
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rmi_handle = create_dissector_handle(dissect_rmi, proto_rmi);
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dissector_add("tcp.port", TCP_PORT_RMI, rmi_handle);
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}
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