forked from osmocom/wireshark
2eb7b05b8c
Similar to the "tcp.port" changes in I99604f95d426ad345f4b494598d94178b886eb67, convert dissectors that use "udp.port". More cleanup done on dissectors that use both TCP and UDP dissector tables, so that less preference callbacks exist. Change-Id: If07be9b9e850c244336a7069599cd554ce312dd3 Reviewed-on: https://code.wireshark.org/review/18120 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
134 lines
3.6 KiB
C
134 lines
3.6 KiB
C
/* packet-echo.c
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* Routines for ECHO packet disassembly (RFC862)
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*
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* Only useful to mark the packets as ECHO in the summary and in the
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* protocol hierarchy statistics (since not so many fields to decode ;-)
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*
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* Laurent Deniel <laurent.deniel@free.fr>
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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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#define ECHO_PORT 7
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void proto_register_echo(void);
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void proto_reg_handoff_echo(void);
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static int proto_echo = -1;
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static int hf_echo_data = -1;
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static int hf_echo_request = -1;
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static int hf_echo_response = -1;
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static gint ett_echo = -1;
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static int dissect_echo(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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int offset = 0;
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gboolean request = FALSE;
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if (pinfo->destport == ECHO_PORT) {
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request = TRUE;
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}
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "ECHO");
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col_set_str(pinfo->cinfo, COL_INFO,
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(request) ? "Request" : "Response");
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if (tree) {
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proto_tree *echo_tree;
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proto_item *ti, *hidden_item;
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ti = proto_tree_add_item(tree, proto_echo, tvb, offset, -1, ENC_NA);
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echo_tree = proto_item_add_subtree(ti, ett_echo);
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if (request) {
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hidden_item = proto_tree_add_boolean(echo_tree, hf_echo_request, tvb, 0, 0, 1);
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} else {
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hidden_item = proto_tree_add_boolean(echo_tree, hf_echo_response, tvb, 0, 0, 1);
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}
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PROTO_ITEM_SET_HIDDEN(hidden_item);
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proto_tree_add_item(echo_tree, hf_echo_data, tvb, offset, -1, ENC_NA);
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}
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return tvb_captured_length(tvb);
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} /* dissect_echo */
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void proto_register_echo(void)
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{
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static hf_register_info hf[] = {
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{ &hf_echo_data,
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{ "Echo data", "echo.data",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_echo_request,
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{ "Echo request", "echo.request",
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FT_BOOLEAN, BASE_NONE, NULL, 0x0,
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"Echo data", HFILL }},
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{ &hf_echo_response,
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{ "Echo response","echo.response",
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FT_BOOLEAN, BASE_NONE, NULL, 0x0,
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"Echo data", HFILL }}
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};
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static gint *ett[] = {
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&ett_echo
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};
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proto_echo = proto_register_protocol("Echo", "ECHO", "echo");
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proto_register_field_array(proto_echo, 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 proto_reg_handoff_echo(void)
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{
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dissector_handle_t echo_handle;
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echo_handle = create_dissector_handle(dissect_echo, proto_echo);
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dissector_add_uint_with_preference("udp.port", ECHO_PORT, echo_handle);
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dissector_add_uint_with_preference("tcp.port", ECHO_PORT, echo_handle);
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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: 2
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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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* ex: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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