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/* packet-xmpp.c
* Routines for XMPP packet dissection
* Copyright 2003, Brad Hards <bradh@frogmouth.net>
* Heavily based in packet-acap.c, which in turn is heavily based on
* packet-imap.c, Copyright 1999, Richard Sharpe <rsharpe@ns.aus.com>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-acap.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.
*
* Ref http://xmpp.org/
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include <epan/strutil.h>
static int proto_xmpp = -1;
static int hf_xmpp_response = -1;
static int hf_xmpp_request = -1;
static gint ett_xmpp = -1;
static gint ett_xmpp_reqresp = -1;
#define TCP_PORT_XMPP 5222
static dissector_handle_t xml_handle=NULL;
static void
dissect_xmpp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
gboolean is_request;
proto_tree *xmpp_tree = NULL;
proto_item *ti, *hidden_item;
gint offset = 0;
const guchar *line;
gint next_offset;
int linelen;
tvbuff_t *xmltvb;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "XMPP");
/*
* Find the end of the first line.
*
* Note that "tvb_find_line_end()" will return a value that is
* not longer than what's in the buffer, so the "tvb_get_ptr()"
* call won't throw an exception.
*/
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
line = tvb_get_ptr(tvb, offset, linelen);
if (pinfo->match_uint == pinfo->destport)
is_request = TRUE;
else
is_request = FALSE;
/*
* Put the first line from the buffer into the summary
* (but leave out the line terminator).
*/
col_add_fstr(pinfo->cinfo, COL_INFO, "%s: %s",
is_request ? "Request" : "Response",
format_text(line, linelen));
if (tree) {
ti = proto_tree_add_item(tree, proto_xmpp, tvb, offset, -1,
ENC_NA) ;
xmpp_tree = proto_item_add_subtree(ti, ett_xmpp);
if (is_request) {
hidden_item = proto_tree_add_boolean(xmpp_tree,
hf_xmpp_request, tvb, 0, 0, TRUE);
} else {
hidden_item = proto_tree_add_boolean(xmpp_tree,
hf_xmpp_response, tvb, 0, 0, TRUE);
}
PROTO_ITEM_SET_HIDDEN(hidden_item);
}
xmltvb = tvb_new_subset_remaining(tvb, offset);
call_dissector(xml_handle, xmltvb, pinfo, xmpp_tree);
}
void
proto_register_xmpp(void)
{
static hf_register_info hf[] = {
{ &hf_xmpp_response,
{ "Response", "xmpp.response",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if XMPP response", HFILL }},
{ &hf_xmpp_request,
{ "Request", "xmpp.request",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if XMPP request", HFILL }}
};
static gint *ett[] = {
&ett_xmpp,
&ett_xmpp_reqresp,
};
proto_xmpp = proto_register_protocol("Extensible Messaging and Presence Protocol",
"XMPP", "xmpp");
proto_register_field_array(proto_xmpp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_xmpp(void)
{
dissector_handle_t xmpp_handle;
xml_handle = find_dissector("xml");
xmpp_handle = create_dissector_handle(dissect_xmpp, proto_xmpp);
dissector_add_uint("tcp.port", TCP_PORT_XMPP, xmpp_handle);
}
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