forked from osmocom/wireshark
179039652b
always register itself on the port from the preferences (defaults to 0) upon launch. This allows the user to right-click and use decode as. svn path=/trunk/; revision=19403
157 lines
4.8 KiB
C
157 lines
4.8 KiB
C
/* packet-newmail.c
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* Routines for Exchange New Mail Notification dissection
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* Copyright 2006, Stephen Fisher <stephentfisher@yahoo.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 WHATEVER_FILE_YOU_USED (where "WHATEVER_FILE_YOU_USED"
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* is a dissector file; if you just copied this from README.developer,
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* don't bother with the "Copied from" - you don't even need to put
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* in a "Copied from" if you copied an existing dissector, especially
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* if the bulk of the code in the new dissector is your code)
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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/prefs.h>
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/* Forward declaration we need below */
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void proto_reg_handoff_newmail(void);
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/* Variables for preferences */
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guint preference_default_port = 0;
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guint preference_default_port_last = 0;
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/* Initialize the protocol and registered fields */
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static int proto_newmail = -1;
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static int hf_newmail_payload = -1;
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/* Initialize the subtree pointers */
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static gint ett_newmail = -1;
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/* Code to actually dissect the packets */
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static void
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dissect_newmail(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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/* Set up structures needed to add the protocol subtree and manage it */
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proto_item *ti;
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proto_tree *newmail_tree;
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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, "NEWMAIL");
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if (check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "Microsoft Exchange new mail notification");
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if (tree) {
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ti = proto_tree_add_item(tree, proto_newmail, tvb, 0, -1, FALSE);
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newmail_tree = proto_item_add_subtree(ti, ett_newmail);
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proto_tree_add_item(newmail_tree, hf_newmail_payload, tvb, 0, 8, FALSE);
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}
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}
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/* Register the protocol with Wireshark */
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void
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proto_register_newmail(void)
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{
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/* Setup list of header fields See Section 1.6.1 for details*/
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static hf_register_info hf[] = {
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{ &hf_newmail_payload,
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{ "Notification payload", "newmail.notification_payload",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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"Payload requested by client in the MAPI register push notification packet", HFILL }
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},
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_newmail,
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};
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module_t *newmail_module;
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/* Register the protocol name and description */
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proto_newmail = proto_register_protocol("Microsoft Exchange New Mail Notification",
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"NEWMAIL", "newmail");
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array(proto_newmail, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register the dissector without a port yet */
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register_dissector("newmail", dissect_newmail, proto_newmail);
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/* Register preferences module */
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newmail_module = prefs_register_protocol(proto_newmail,
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proto_reg_handoff_newmail);
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prefs_register_uint_preference(newmail_module,
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"default_port",
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"Default UDP port (optional)",
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"Always dissect this port's traffic as newmail notifications. Additional ports will be dynamically registered as they are seen in MAPI register push notification packets.",
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10, &preference_default_port);
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}
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void
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proto_reg_handoff_newmail(void)
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{
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static gboolean inited = FALSE;
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dissector_handle_t newmail_handle;
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newmail_handle = find_dissector("newmail");
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if(!inited) {
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dissector_add("udp.port", preference_default_port, newmail_handle);
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preference_default_port_last = preference_default_port;
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inited = TRUE;
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}
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if(preference_default_port != preference_default_port_last) {
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/* Unregister the last setting */
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dissector_delete("udp.port", preference_default_port_last,
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newmail_handle);
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/* Save the last setting so we can unregister it later */
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preference_default_port_last = preference_default_port;
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/* Register the new setting */
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dissector_add("udp.port", preference_default_port, newmail_handle);
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}
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}
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