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