131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/* packet-media.c
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* Routines for displaying an undissected media type (default case),
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* based on the generic "data" dissector.
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*
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* (C) Olivier Biot, 2004
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*
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* Refer to the AUTHORS file or the AUTHORS section in the man page
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* for contacting the author(s) of this file.
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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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* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <wsutil/str_util.h>
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#include "packet-http.h"
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void proto_register_media(void);
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/* proto_media cannot be static because it's referenced in the
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* print routines
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*/
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int proto_media = -1;
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static gint hf_media_type = -1;
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static gint ett_media = -1;
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static heur_dissector_list_t heur_subdissector_list;
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static int
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dissect_media(tvbuff_t *tvb, packet_info *pinfo , proto_tree *tree, void* data)
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{
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int bytes;
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proto_item *ti;
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proto_tree *media_tree = 0;
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http_message_info_t *message_info = (http_message_info_t *)data;
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heur_dtbl_entry_t *hdtbl_entry;
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if (dissector_try_heuristic(heur_subdissector_list, tvb, pinfo, tree, &hdtbl_entry, data)) {
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return tvb_reported_length(tvb);
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}
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/* Add media type to the INFO column if it is visible */
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col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", (pinfo->match_string) ? pinfo->match_string : "");
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if (tree) {
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if ( (bytes = tvb_reported_length(tvb)) > 0 )
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{
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ti = proto_tree_add_item(tree, proto_media, tvb, 0, -1, ENC_NA);
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media_tree = proto_item_add_subtree(ti, ett_media);
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if (message_info != NULL && message_info->media_str != NULL) {
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/* The media type has parameters */
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proto_tree_add_bytes_format_value(media_tree, hf_media_type, tvb, 0, bytes,
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NULL, "%s; %s (%d byte%s)",
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pinfo->match_string, message_info->media_str,
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bytes, plurality(bytes, "", "s"));
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} else {
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/* The media type has no parameters */
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proto_tree_add_bytes_format_value(media_tree, hf_media_type, tvb, 0, bytes,
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NULL, "%s (%d byte%s)",
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pinfo->match_string ? pinfo->match_string : "",
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bytes, plurality(bytes, "", "s"));
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}
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}
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}
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return tvb_reported_length(tvb);
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}
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void
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proto_register_media(void)
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{
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static hf_register_info hf[] = {
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{ &hf_media_type,
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{ "Media type", "media.type",
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FT_BYTES, BASE_NONE, NULL, 0,
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NULL, HFILL }},
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};
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static gint *ett[] = {
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&ett_media
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};
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proto_media = proto_register_protocol (
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"Media Type", /* name */
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"Media", /* short name */
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"media" /* abbrev */
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);
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register_dissector("media", dissect_media, proto_media);
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heur_subdissector_list = register_heur_dissector_list("media", proto_media);
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proto_register_field_array(proto_media, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/*
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* "Media" is used to dissect something whose normal dissector
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* is disabled, so it cannot itself be disabled.
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*/
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proto_set_cant_toggle(proto_media);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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