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/* packet-yhoo.c
* Routines for yahoo messenger packet dissection
* Copyright 1999, Nathan Neulinger <nneul@umr.edu>
*
* $Id: packet-yhoo.c,v 1.18 2001/07/16 06:09:02 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* Copied from packet-tftp.c
*
* 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
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#include <string.h>
#include <glib.h>
#include "packet.h"
#include "packet-yhoo.h"
static int proto_yhoo = -1;
static int hf_yhoo_version = -1;
static int hf_yhoo_len = -1;
static int hf_yhoo_service = -1;
static int hf_yhoo_connection_id = -1;
static int hf_yhoo_magic_id = -1;
static int hf_yhoo_unknown1 = -1;
static int hf_yhoo_msgtype = -1;
static int hf_yhoo_nick1 = -1;
static int hf_yhoo_nick2 = -1;
static int hf_yhoo_content = -1;
static gint ett_yhoo = -1;
#define TCP_PORT_YHOO 5050
static const value_string yhoo_service_vals[] = {
{YAHOO_SERVICE_LOGON, "Pager Logon"},
{YAHOO_SERVICE_LOGOFF, "Pager Logoff"},
{YAHOO_SERVICE_ISAWAY, "Is Away"},
{YAHOO_SERVICE_ISBACK, "Is Back"},
{YAHOO_SERVICE_IDLE, "Idle"},
{YAHOO_SERVICE_MESSAGE, "Message"},
{YAHOO_SERVICE_IDACT, "Activate Identity"},
{YAHOO_SERVICE_IDDEACT, "Deactivate Identity"},
{YAHOO_SERVICE_MAILSTAT, "Mail Status"},
{YAHOO_SERVICE_USERSTAT, "User Status"},
{YAHOO_SERVICE_NEWMAIL, "New Mail"},
{YAHOO_SERVICE_CHATINVITE, "Chat Invitation"},
{YAHOO_SERVICE_CALENDAR, "Calendar Reminder"},
{YAHOO_SERVICE_NEWPERSONALMAIL, "New Personals Mail"},
{YAHOO_SERVICE_NEWCONTACT, "New Friend"},
{YAHOO_SERVICE_GROUPRENAME, "Group Renamed"},
{YAHOO_SERVICE_ADDIDENT, "Add Identity"},
{YAHOO_SERVICE_ADDIGNORE, "Add Ignore"},
{YAHOO_SERVICE_PING, "Ping"},
{YAHOO_SERVICE_SYSMESSAGE, "System Message"},
{YAHOO_SERVICE_CONFINVITE, "Conference Invitation"},
{YAHOO_SERVICE_CONFLOGON, "Conference Logon"},
{YAHOO_SERVICE_CONFDECLINE, "Conference Decline"},
{YAHOO_SERVICE_CONFLOGOFF, "Conference Logoff"},
{YAHOO_SERVICE_CONFMSG, "Conference Message"},
{YAHOO_SERVICE_CONFADDINVITE, "Conference Additional Invitation"},
{YAHOO_SERVICE_CHATLOGON, "Chat Logon"},
{YAHOO_SERVICE_CHATLOGOFF, "Chat Logoff"},
{YAHOO_SERVICE_CHATMSG, "Chat Message"},
{YAHOO_SERVICE_FILETRANSFER, "File Transfer"},
{YAHOO_SERVICE_PASSTHROUGH2, "Passthrough 2"},
{0, NULL}
};
static const value_string yhoo_msgtype_vals[] = {
{YAHOO_MSGTYPE_NONE, "None"},
{YAHOO_MSGTYPE_NORMAL, "Normal"},
{YAHOO_MSGTYPE_BOUNCE, "Bounce"},
{YAHOO_MSGTYPE_STATUS, "Status Update"},
{YAHOO_MSGTYPE_OFFLINE, "Request Offline"},
{0, NULL}
};
static gboolean
dissect_yhoo(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_tree *yhoo_tree, *ti;
int offset = 0;
int length = 0;
if (!proto_is_protocol_enabled(proto_yhoo)) {
return FALSE;
}
if (pinfo->srcport != TCP_PORT_YHOO && pinfo->destport != TCP_PORT_YHOO) {
/* Not the Yahoo port - not a Yahoo Messenger packet. */
return FALSE;
}
/* get at least a full packet structure */
if ( !tvb_bytes_exist(tvb, 0, sizeof(struct yahoo_rawpacket)) ) {
/* Not enough data captured; maybe it is a Yahoo
Messenger packet, but it contains too little data to
tell. */
return FALSE;
}
length = tvb_length(tvb);
if (memcmp(tvb_get_ptr(tvb, offset, 4), "YPNS", 4) != 0 &&
memcmp(tvb_get_ptr(tvb, offset, 4), "YHOO", 4) != 0) {
/* Not a Yahoo Messenger packet. */
return FALSE;
}
if (check_col(pinfo->fd, COL_PROTOCOL))
col_set_str(pinfo->fd, COL_PROTOCOL, "YHOO");
offset = 0;
if (check_col(pinfo->fd, COL_INFO)) {
col_add_fstr(pinfo->fd, COL_INFO,
"%s: %s",
( strncmp(tvb_get_ptr(tvb, offset + 0, 4), "YPNS", 4) == 0 ) ? "Request" : "Response",
val_to_str(tvb_get_letohl(tvb, offset + 12),
yhoo_service_vals, "Unknown Service: %u")
);
}
if (tree) {
ti = proto_tree_add_item(tree, proto_yhoo, tvb, offset,
tvb_length_remaining(tvb, offset), FALSE);
yhoo_tree = proto_item_add_subtree(ti, ett_yhoo);
proto_tree_add_item(yhoo_tree, hf_yhoo_version, tvb,
offset, 8, TRUE);
offset += 8;
proto_tree_add_item(yhoo_tree, hf_yhoo_len, tvb,
offset, 4, TRUE);
offset += 4;
proto_tree_add_item(yhoo_tree, hf_yhoo_service, tvb,
offset, 4, TRUE);
offset += 4;
proto_tree_add_item(yhoo_tree, hf_yhoo_connection_id, tvb,
offset, 4, TRUE);
offset += 4;
proto_tree_add_item(yhoo_tree, hf_yhoo_magic_id, tvb,
offset, 4, TRUE);
offset += 4;
proto_tree_add_item(yhoo_tree, hf_yhoo_unknown1, tvb,
offset, 4, TRUE);
offset += 4;
proto_tree_add_item(yhoo_tree, hf_yhoo_msgtype, tvb,
offset, 4, TRUE);
offset += 4;
proto_tree_add_item(yhoo_tree, hf_yhoo_nick1, tvb,
offset, 36, TRUE);
offset += 36;
proto_tree_add_item(yhoo_tree, hf_yhoo_nick2, tvb,
offset, 36, TRUE);
offset += 36;
proto_tree_add_item(yhoo_tree, hf_yhoo_content, tvb,
offset, length-offset, TRUE);
}
return TRUE;
}
void
proto_register_yhoo(void)
{
static hf_register_info hf[] = {
{ &hf_yhoo_service, {
"Service Type", "yhoo.service", FT_UINT32, BASE_DEC,
VALS(yhoo_service_vals), 0, "Service Type", HFILL }},
{ &hf_yhoo_msgtype, {
"Message Type", "yhoo.msgtype", FT_UINT32, BASE_DEC,
VALS(yhoo_msgtype_vals), 0, "Message Type Flags", HFILL }},
{ &hf_yhoo_connection_id, {
"Connection ID", "yhoo.connection_id", FT_UINT32, BASE_HEX,
NULL, 0, "Connection ID", HFILL }},
{ &hf_yhoo_magic_id, {
"Magic ID", "yhoo.magic_id", FT_UINT32, BASE_HEX,
NULL, 0, "Magic ID", HFILL }},
{ &hf_yhoo_unknown1, {
"Unknown 1", "yhoo.unknown1", FT_UINT32, BASE_HEX,
NULL, 0, "Unknown 1", HFILL }},
{ &hf_yhoo_len, {
"Packet Length", "yhoo.len", FT_UINT32, BASE_DEC,
NULL, 0, "Packet Length", HFILL }},
{ &hf_yhoo_nick1, {
"Real Nick (nick1)", "yhoo.nick1", FT_STRING, 0,
NULL, 0, "Real Nick (nick1)", HFILL }},
{ &hf_yhoo_nick2, {
"Active Nick (nick2)", "yhoo.nick2", FT_STRING, 0,
NULL, 0, "Active Nick (nick2)", HFILL }},
{ &hf_yhoo_content, {
"Content", "yhoo.content", FT_STRING, 0,
NULL, 0, "Data portion of the packet", HFILL }},
{ &hf_yhoo_version, {
"Version", "yhoo.version", FT_STRING, 0,
NULL, 0, "Packet version identifier", HFILL }},
};
static gint *ett[] = {
&ett_yhoo,
};
proto_yhoo = proto_register_protocol("Yahoo Messenger Protocol",
"YHOO", "yhoo");
proto_register_field_array(proto_yhoo, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_yhoo(void)
{
heur_dissector_add("tcp", dissect_yhoo, proto_yhoo);
}
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