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>
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/* packet-chargen.c
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* Routines for chargen packet dissection
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* Copyright 2014, Dario Lombardo <lomato@gmail.com>
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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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* Chargen specs taken from RFC 864
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* http://tools.ietf.org/html/rfc864
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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 CHARGEN_PORT_UDP 19
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#define CHARGEN_PORT_TCP 19
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void proto_register_chargen(void);
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void proto_reg_handoff_chargen(void);
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static int proto_chargen = -1;
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static int hf_chargen_data = -1;
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static gint ett_chargen = -1;
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/* dissect_chargen - dissects chargen packet data
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* tvb - tvbuff for packet data (IN)
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* pinfo - packet info
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* proto_tree - resolved protocol tree
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*/
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static int
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dissect_chargen(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* dissector_data _U_)
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{
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proto_tree* chargen_tree;
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proto_item* ti;
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guint8* data;
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guint32 len;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "Chargen");
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col_set_str(pinfo->cinfo, COL_INFO, "Chargen");
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ti = proto_tree_add_item(tree, proto_chargen, tvb, 0, -1, ENC_NA);
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chargen_tree = proto_item_add_subtree(ti, ett_chargen);
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len = tvb_reported_length(tvb);
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data = tvb_get_string_enc(wmem_packet_scope(), tvb, 0, len, ENC_ASCII);
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proto_tree_add_string_format(chargen_tree, hf_chargen_data, tvb, 0,
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len, "Data", "Data (%u): %s", len, data);
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/* proto_tree_add_item(chargen_tree, hf_chargen_data, tvb, 0, -1, ENC_ASCII|ENC_NA); */
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return tvb_captured_length(tvb);
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}
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void
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proto_register_chargen(void)
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{
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static hf_register_info hf[] = {
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{ &hf_chargen_data, {
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"Data", "chargen.data", FT_STRING, BASE_NONE,
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NULL, 0, NULL, HFILL }}
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};
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static gint *ett[] = {
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&ett_chargen,
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};
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proto_chargen = proto_register_protocol("Character Generator Protocol", "chargen",
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"chargen");
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proto_register_field_array(proto_chargen, 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_chargen(void)
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{
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dissector_handle_t chargen_handle;
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chargen_handle = create_dissector_handle(dissect_chargen, proto_chargen);
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dissector_add_uint_with_preference("udp.port", CHARGEN_PORT_UDP, chargen_handle);
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dissector_add_uint_with_preference("tcp.port", CHARGEN_PORT_TCP, chargen_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: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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