forked from osmocom/wireshark
ad6134bb4b
Change-Id: I78f9815616f4fc3c14204339c5826f0ca7d0680e Reviewed-on: https://code.wireshark.org/review/4485 Reviewed-by: Bill Meier <wmeier@newsguy.com>
176 lines
5.6 KiB
C
176 lines
5.6 KiB
C
/* packet-dpvrsp.c
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* Routines for DOCSIS 3.0 DOCSIS Path Verify Request Message dissection.
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* Copyright 2010, Guido Reismueller <g.reismueller[AT]avm.de>
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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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void proto_register_docsis_dpvrsp(void);
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void proto_reg_handoff_docsis_dpvrsp(void);
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/* Initialize the protocol and registered fields */
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static int proto_docsis_dpvrsp = -1;
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static int hf_docsis_dpvrsp_tranid = -1;
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static int hf_docsis_dpvrsp_dschan = -1;
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static int hf_docsis_dpvrsp_flags = -1;
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static int hf_docsis_dpvrsp_us_sf = -1;
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static int hf_docsis_dpvrsp_n = -1;
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static int hf_docsis_dpvrsp_start = -1;
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static int hf_docsis_dpvrsp_end = -1;
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static int hf_docsis_dpvrsp_ts_start = -1;
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static int hf_docsis_dpvrsp_ts_end = -1;
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/* Initialize the subtree pointers */
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static gint ett_docsis_dpvrsp = -1;
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/* Dissection */
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static void
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dissect_dpvrsp (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
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{
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proto_item *it;
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proto_tree *dpvrsp_tree = NULL;
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guint16 transid;
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guint8 dschan;
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transid = tvb_get_ntohs (tvb, 0);
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dschan = tvb_get_guint8 (tvb, 2);
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col_add_fstr (pinfo->cinfo, COL_INFO,
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"DOCSIS Path Verify Response: Transaction-Id = %u DS-Ch %d",
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transid, dschan);
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if (tree)
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{
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it =
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proto_tree_add_protocol_format (tree, proto_docsis_dpvrsp, tvb, 0, -1,
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"DPV Response");
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dpvrsp_tree = proto_item_add_subtree (it, ett_docsis_dpvrsp);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_tranid, tvb,
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0, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_dschan, tvb,
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2, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_flags, tvb,
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3, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_us_sf, tvb,
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4, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_n, tvb,
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8, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_start, tvb,
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10, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_end, tvb,
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11, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_ts_start, tvb,
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12, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item (dpvrsp_tree, hf_docsis_dpvrsp_ts_end, tvb,
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16, 4, ENC_BIG_ENDIAN);
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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_docsis_dpvrsp (void)
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{
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static hf_register_info hf[] = {
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{&hf_docsis_dpvrsp_tranid,
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{"Transaction Id", "docsis_dpvrsp.tranid",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_dschan,
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{"Downstream Channel ID", "docsis_dpvrsp.dschan",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_flags,
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{"Flags", "docsis_dpvrsp.flags",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_us_sf,
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{"Upstream Service Flow ID", "docsis_dpvrsp.us_sf",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_n,
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{"N (Measurement avaraging factor)", "docsis_dpvrsp.n",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_start,
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{"Start Reference Point", "docsis_dpvrsp.start",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_end,
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{"End Reference Point", "docsis_dpvrsp.end",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_ts_start,
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{"Timestamp Start", "docsis_dpvrsp.ts_start",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_docsis_dpvrsp_ts_end,
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{"Timestamp End", "docsis_dpvrsp.ts_end",
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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};
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static gint *ett[] = {
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&ett_docsis_dpvrsp,
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};
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proto_docsis_dpvrsp =
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proto_register_protocol ("DOCSIS Path Verify Response",
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"DOCSIS DPV-RSP", "docsis_dpvrsp");
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proto_register_field_array (proto_docsis_dpvrsp, hf, array_length (hf));
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proto_register_subtree_array (ett, array_length (ett));
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register_dissector ("docsis_dpvrsp", dissect_dpvrsp, proto_docsis_dpvrsp);
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}
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void
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proto_reg_handoff_docsis_dpvrsp (void)
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{
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dissector_handle_t docsis_dpvrsp_handle;
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docsis_dpvrsp_handle = find_dissector ("docsis_dpvrsp");
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dissector_add_uint ("docsis_mgmt", 0x28, docsis_dpvrsp_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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