forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
keys to have _uint in their names, to match the routines that handle dissector tables with string keys. (Using _port can confuse people into thinking they're intended solely for use with TCP/UDP/etc. ports when, in fact, they work better for things such as Ethernet types, where the binding of particular values to particular protocols are a lot stronger.) svn path=/trunk/; revision=35224
1067 lines
31 KiB
C
1067 lines
31 KiB
C
/* packet-type29ucd.c
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* Routines for Type 29 UCD - DOCSIS 2.0 only - Message dissection
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* Copyright 2003, Brian Wheeler <brian.wheeler[AT]arrisi.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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* 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 <epan/packet.h>
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#define type29ucd_SYMBOL_RATE 1
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#define type29ucd_FREQUENCY 2
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#define type29ucd_PREAMBLE 3
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#define type29ucd_BURST_DESCR 4
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#define type29ucd_BURST_DESCR5 5
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#define type29ucd_EXT_PREAMBLE 6
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#define type29ucd_SCDMA_MODE_ENABLE 7
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#define type29ucd_SCDMA_SPREADING_INTERVAL 8
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#define type29ucd_SCDMA_CODES_PER_MINI_SLOT 9
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#define type29ucd_SCDMA_ACTIVE_CODES 10
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#define type29ucd_SCDMA_CODE_HOPPING_SEED 11
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#define type29ucd_SCDMA_US_RATIO_NUM 12
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#define type29ucd_SCDMA_US_RATIO_DENOM 13
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#define type29ucd_SCDMA_TIMESTAMP_SNAPSHOT 14
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#define type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY 15
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#define type29ucd_RANGING_REQUIRED 16
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#define type29ucd_MODULATION 1
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#define type29ucd_DIFF_ENCODING 2
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#define type29ucd_PREAMBLE_LEN 3
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#define type29ucd_PREAMBLE_VAL_OFF 4
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#define type29ucd_FEC 5
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#define type29ucd_FEC_CODEWORD 6
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#define type29ucd_SCRAMBLER_SEED 7
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#define type29ucd_MAX_BURST 8
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#define type29ucd_GUARD_TIME 9
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#define type29ucd_LAST_CW_LEN 10
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#define type29ucd_SCRAMBLER_ONOFF 11
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#define type29ucd_RS_INT_DEPTH 12
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#define type29ucd_RS_INT_BLOCK 13
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#define type29ucd_PREAMBLE_TYPE 14
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#define type29ucd_SCMDA_SCRAMBLER_ONOFF 15
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#define type29ucd_SCDMA_CODES_PER_SUBFRAME 16
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#define type29ucd_SCDMA_FRAMER_INT_STEP_SIZE 17
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#define type29ucd_TCM_ENABLED 18
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#define IUC_REQUEST 1
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#define IUC_REQ_DATA 2
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#define IUC_INIT_MAINT 3
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#define IUC_STATION_MAINT 4
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#define IUC_SHORT_DATA_GRANT 5
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#define IUC_LONG_DATA_GRANT 6
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#define IUC_NULL_IE 7
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#define IUC_DATA_ACK 8
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#define IUC_ADV_PHY_SHORT_DATA_GRANT 9
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#define IUC_ADV_PHY_LONG_DATA_GRANT 10
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#define IUC_ADV_PHY_UGS 11
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#define IUC_RESERVED12 12
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#define IUC_RESERVED13 13
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#define IUC_RESERVED14 14
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#define IUC_EXPANSION 15
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/* Initialize the protocol and registered fields */
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static int proto_docsis_type29ucd = -1;
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static int hf_docsis_type29ucd_upstream_chid = -1;
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static int hf_docsis_type29ucd_config_ch_cnt = -1;
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static int hf_docsis_type29ucd_mini_slot_size = -1;
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static int hf_docsis_type29ucd_down_chid = -1;
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static int hf_docsis_type29ucd_symbol_rate = -1;
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static int hf_docsis_type29ucd_frequency = -1;
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static int hf_docsis_type29ucd_preamble_pat = -1;
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static int hf_docsis_type29ucd_iuc = -1;
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static int hf_docsis_type29ucd_ext_preamble = -1;
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static int hf_docsis_type29ucd_scdma_mode_enable = -1;
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static int hf_docsis_type29ucd_scdma_spreading_interval = -1;
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static int hf_docsis_type29ucd_scdma_codes_per_mini_slot = -1;
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static int hf_docsis_type29ucd_scdma_active_codes = -1;
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static int hf_docsis_type29ucd_scdma_code_hopping_seed = -1;
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static int hf_docsis_type29ucd_scdma_us_ratio_num = -1;
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static int hf_docsis_type29ucd_scdma_us_ratio_denom = -1;
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static int hf_docsis_type29ucd_scdma_timestamp_snapshot = -1;
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static int hf_docsis_type29ucd_maintain_power_spectral_density = -1;
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static int hf_docsis_type29ucd_ranging_required = -1;
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static int hf_docsis_burst_mod_type = -1;
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static int hf_docsis_burst_diff_encoding = -1;
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static int hf_docsis_burst_preamble_len = -1;
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static int hf_docsis_burst_preamble_val_off = -1;
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static int hf_docsis_burst_fec = -1;
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static int hf_docsis_burst_fec_codeword = -1;
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static int hf_docsis_burst_scrambler_seed = -1;
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static int hf_docsis_burst_max_burst = -1;
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static int hf_docsis_burst_guard_time = -1;
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static int hf_docsis_burst_last_cw_len = -1;
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static int hf_docsis_burst_scrambler_onoff = -1;
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static int hf_docsis_rs_int_depth = -1;
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static int hf_docsis_rs_int_block = -1;
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static int hf_docsis_preamble_type = -1;
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static int hf_docsis_scdma_scrambler_onoff = -1;
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static int hf_docsis_scdma_codes_per_subframe = -1;
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static int hf_docsis_scdma_framer_int_step_size = -1;
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static int hf_docsis_tcm_enabled = -1;
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/* Initialize the subtree pointers */
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static gint ett_docsis_type29ucd = -1;
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static gint ett_burst_descr = -1;
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static const value_string channel_tlv_vals[] _U_ = {
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{type29ucd_SYMBOL_RATE, "Symbol Rate"},
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{type29ucd_FREQUENCY, "Frequency"},
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{type29ucd_PREAMBLE, "Preamble Pattern"},
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{type29ucd_BURST_DESCR, "Burst Descriptor"},
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{type29ucd_BURST_DESCR5, "Burst Descriptor DOCSIS 2.0"},
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{type29ucd_EXT_PREAMBLE, "Extended Preamble Pattern"},
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{type29ucd_SCDMA_MODE_ENABLE, "SCDMA Mode Enabled"},
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{type29ucd_SCDMA_SPREADING_INTERVAL, "SCDMA Spreading Intervals per Frame"},
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{type29ucd_SCDMA_CODES_PER_MINI_SLOT, "SCDMA Codes per Mini-slot"},
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{type29ucd_SCDMA_ACTIVE_CODES, "SCDMA Number of Active Codes"},
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{type29ucd_SCDMA_CODE_HOPPING_SEED, "SCDMA Code Hopping Seed"},
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{type29ucd_SCDMA_US_RATIO_NUM, "SCDMA US ratio numerator M"},
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{type29ucd_SCDMA_US_RATIO_DENOM, "SCDMA US ratio denominator N"},
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{type29ucd_SCDMA_TIMESTAMP_SNAPSHOT, "SCDMA Timestamp Snapshot"},
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{type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY, "Maintain Power Spectral Density"},
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{type29ucd_RANGING_REQUIRED, "Ranging Required"},
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{0, NULL}
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};
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static const value_string on_off_vals[] = {
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{1, "On"},
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{2, "Off"},
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{0, NULL}
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};
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static const value_string mod_vals2[] = {
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{1, "QPSK"},
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{2, "QAM16"},
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{3, "QAM8"},
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{4, "QAM32"},
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{5, "QAM64"},
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{6, "QAM128 (S-CDMA)"},
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{0, NULL}
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};
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value_string iuc_vals2[] = {
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{IUC_REQUEST, "Request"},
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{IUC_REQ_DATA, "REQ/Data"},
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{IUC_INIT_MAINT, "Initial Maintenance"},
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{IUC_STATION_MAINT, "Station Maintenance"},
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{IUC_SHORT_DATA_GRANT, "Short Data Grant"},
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{IUC_LONG_DATA_GRANT, "Long Data Grant"},
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{IUC_NULL_IE, "NULL IE"},
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{IUC_DATA_ACK, "Data Ack"},
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{IUC_ADV_PHY_SHORT_DATA_GRANT, "Advanced Phy Short Data Grant"},
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{IUC_ADV_PHY_LONG_DATA_GRANT, "Advanced Phy Long Data Grant"},
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{IUC_ADV_PHY_UGS, "Advanced Phy UGS"},
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{IUC_RESERVED12, "Reserved 12"},
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{IUC_RESERVED13, "Reserved 13"},
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{IUC_RESERVED14, "Reserved 14"},
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{IUC_EXPANSION, "IUC Expansion"},
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{0, NULL}
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};
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static const value_string last_cw_len_vals[] = {
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{1, "Fixed"},
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{2, "Shortened"},
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{0, NULL}
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};
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/* Code to actually dissect the packets */
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static void
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dissect_type29ucd (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
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{
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guint16 pos, endtlvpos;
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guint8 type, length;
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guint8 tlvlen, tlvtype;
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proto_tree *burst_descr_tree;
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proto_item *it;
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proto_tree *type29ucd_tree;
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proto_item *type29ucd_item;
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guint16 len;
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guint8 upchid, symrate;
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len = tvb_length_remaining (tvb, 0);
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upchid = tvb_get_guint8 (tvb, 0);
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/* if the upstream Channel ID is 0 then this is for Telephony Return) */
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col_clear (pinfo->cinfo, COL_INFO);
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if (upchid > 0)
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col_add_fstr (pinfo->cinfo, COL_INFO,
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"type29ucd Message: Channel ID = %u (U%u)", upchid,
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upchid - 1);
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else
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col_add_fstr (pinfo->cinfo, COL_INFO,
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"type29ucd Message: Channel ID = %u (Telephony Return)",
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upchid);
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if (tree)
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{
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type29ucd_item =
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proto_tree_add_protocol_format (tree, proto_docsis_type29ucd, tvb, 0,
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tvb_length_remaining (tvb, 0),
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"type29ucd Message");
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type29ucd_tree = proto_item_add_subtree (type29ucd_item, ett_docsis_type29ucd);
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_upstream_chid, tvb, 0, 1,
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FALSE);
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_config_ch_cnt, tvb, 1, 1,
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FALSE);
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_mini_slot_size, tvb, 2, 1,
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FALSE);
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_down_chid, tvb, 3, 1,
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FALSE);
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pos = 4;
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while (pos < len)
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{
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type = tvb_get_guint8 (tvb, pos++);
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length = tvb_get_guint8 (tvb, pos++);
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switch (type)
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{
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case type29ucd_SYMBOL_RATE:
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if (length == 1)
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{
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symrate = tvb_get_guint8 (tvb, pos);
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proto_tree_add_uint (type29ucd_tree, hf_docsis_type29ucd_symbol_rate,
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tvb, pos, length, symrate * 160);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_FREQUENCY:
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if (length == 4)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_frequency, tvb,
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pos, length, FALSE);
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pos = pos + length;
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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break;
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case type29ucd_PREAMBLE:
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_preamble_pat, tvb,
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pos, length, FALSE);
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pos = pos + length;
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break;
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/* DOCSIS 2.0 UCD TLV definitions
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* #define type29ucd_EXT_PREAMBLE 6
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* #define type29ucd_SCDMA_MODE_ENABLE 7
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* #define type29ucd_SCDMA_SPREADING_INTERVAL 8
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* #define type29ucd_SCDMA_CODES_PER_MINI_SLOT 9
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* #define type29ucd_SCDMA_ACTIVE_CODES 10
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* #define type29ucd_SCDMA_CODE_HOPPING_SEED 11
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* #define type29ucd_SCDMA_US_RATIO_NUM 12
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* #define type29ucd_SCDMA_US_RATIO_DENOM 13
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* #define type29ucd_SCDMA_TIMESTAMP_SNAPSHOT 14
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* #define type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY 15
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* #define type29ucd_RANGING_REQUIRED 16
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*/
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case type29ucd_EXT_PREAMBLE:
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_ext_preamble, tvb,
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pos, length, FALSE);
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pos = pos + length;
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break;
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case type29ucd_SCDMA_MODE_ENABLE:
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if (length == 1)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_mode_enable,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_SPREADING_INTERVAL:
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if (length == 1)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_spreading_interval,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_CODES_PER_MINI_SLOT:
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if (length == 1)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_codes_per_mini_slot,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_ACTIVE_CODES:
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if (length == 1)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_active_codes,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_CODE_HOPPING_SEED:
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if (length == 2)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_code_hopping_seed,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_US_RATIO_NUM:
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if (length == 2)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_us_ratio_num,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_US_RATIO_DENOM:
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if (length == 2)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_us_ratio_denom,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_SCDMA_TIMESTAMP_SNAPSHOT:
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if (length == 9)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_timestamp_snapshot,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY:
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if (length == 1)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_maintain_power_spectral_density,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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case type29ucd_RANGING_REQUIRED:
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if (length == 1)
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{
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proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_ranging_required,
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tvb, pos, length, FALSE);
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}
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else
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{
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THROW (ReportedBoundsError);
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}
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pos = pos + length;
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break;
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/* DOCSIS 1.1 BURST DESCRIPTOR */
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case type29ucd_BURST_DESCR:
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it =
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proto_tree_add_text (type29ucd_tree, tvb, pos, length,
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"4 Burst Descriptor (Length = %u)",
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length);
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burst_descr_tree = proto_item_add_subtree (it, ett_burst_descr);
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proto_tree_add_item (burst_descr_tree, hf_docsis_type29ucd_iuc, tvb,
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pos++, 1, FALSE);
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endtlvpos = pos + length - 1;
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while (pos < endtlvpos)
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{
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|
tlvtype = tvb_get_guint8 (tvb, pos++);
|
|
tlvlen = tvb_get_guint8 (tvb, pos++);
|
|
switch (tlvtype)
|
|
{
|
|
case type29ucd_MODULATION:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_mod_type, tvb,
|
|
pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_DIFF_ENCODING:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_diff_encoding,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_PREAMBLE_LEN:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_preamble_len,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_PREAMBLE_VAL_OFF:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_preamble_val_off,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_FEC:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_fec, tvb, pos,
|
|
tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_FEC_CODEWORD:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_fec_codeword,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCRAMBLER_SEED:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_scrambler_seed,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_MAX_BURST:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_max_burst, tvb,
|
|
pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_GUARD_TIME:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_guard_time,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_LAST_CW_LEN:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_last_cw_len,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCRAMBLER_ONOFF:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_scrambler_onoff,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
} /* switch(tlvtype) */
|
|
pos = pos + tlvlen;
|
|
} /* while (pos < endtlvpos) */
|
|
break;
|
|
/* DOCSIS 2.0 Upstream Channel Descriptor */
|
|
case type29ucd_BURST_DESCR5:
|
|
it =
|
|
proto_tree_add_text (type29ucd_tree, tvb, pos, length,
|
|
"5 Burst Descriptor (Length = %u)",
|
|
length);
|
|
burst_descr_tree = proto_item_add_subtree (it, ett_burst_descr);
|
|
proto_tree_add_item (burst_descr_tree, hf_docsis_type29ucd_iuc, tvb,
|
|
pos++, 1, FALSE);
|
|
endtlvpos = pos + length - 1;
|
|
while (pos < endtlvpos)
|
|
{
|
|
tlvtype = tvb_get_guint8 (tvb, pos++);
|
|
tlvlen = tvb_get_guint8 (tvb, pos++);
|
|
switch (tlvtype)
|
|
{
|
|
case type29ucd_MODULATION:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_mod_type, tvb,
|
|
pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_DIFF_ENCODING:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_diff_encoding,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_PREAMBLE_LEN:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_preamble_len,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_PREAMBLE_VAL_OFF:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_preamble_val_off,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_FEC:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_fec, tvb, pos,
|
|
tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_FEC_CODEWORD:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_fec_codeword,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCRAMBLER_SEED:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_scrambler_seed,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_MAX_BURST:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_max_burst, tvb,
|
|
pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_GUARD_TIME:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_guard_time,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_LAST_CW_LEN:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_last_cw_len,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCRAMBLER_ONOFF:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_burst_scrambler_onoff,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
/* New cases added for DOCSIS 2.0 US Physical Burst Descriptor TLV */
|
|
/* #define type29ucd_RS_INT_DEPTH 12
|
|
* #define type29ucd_RS_INT_BLOCK 13
|
|
* #define type29ucd_PREAMBLE_TYPE 14
|
|
* #define type29ucd_SCMDA_SCRAMBLER_ONOFF 15
|
|
* #define type29ucd_SCDMA_CODES_PER_SUBFRAME 16
|
|
* #define type29ucd_SCDMA_FRAMER_INT_STEP_SIZE 17
|
|
* #define type29ucd_TCM_ENABLED 18
|
|
*/
|
|
case type29ucd_RS_INT_DEPTH:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_rs_int_depth,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_RS_INT_BLOCK:
|
|
if (tlvlen == 2)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_rs_int_block,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_PREAMBLE_TYPE:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_preamble_type,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCMDA_SCRAMBLER_ONOFF:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_scdma_scrambler_onoff,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCDMA_CODES_PER_SUBFRAME:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_scdma_codes_per_subframe,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_SCDMA_FRAMER_INT_STEP_SIZE:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_scdma_framer_int_step_size,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
case type29ucd_TCM_ENABLED:
|
|
if (tlvlen == 1)
|
|
{
|
|
proto_tree_add_item (burst_descr_tree,
|
|
hf_docsis_tcm_enabled,
|
|
tvb, pos, tlvlen, FALSE);
|
|
}
|
|
else
|
|
{
|
|
THROW (ReportedBoundsError);
|
|
}
|
|
break;
|
|
/* End of DOCSIS 2.0 US burst Descriptor Changes */
|
|
} /* switch(tlvtype) */
|
|
pos = pos + tlvlen;
|
|
} /* while (pos < endtlvpos) */
|
|
break;
|
|
} /* switch(type) */
|
|
} /* while (pos < len) */
|
|
} /* if (tree) */
|
|
|
|
}
|
|
|
|
/* Register the protocol with Wireshark */
|
|
|
|
/* this format is require because a script is used to build the C function
|
|
that calls all the protocol registration.
|
|
*/
|
|
|
|
|
|
void
|
|
proto_register_docsis_type29ucd (void)
|
|
{
|
|
|
|
/* Setup list of header fields See Section 1.6.1 for details*/
|
|
static hf_register_info hf[] = {
|
|
{&hf_docsis_type29ucd_upstream_chid,
|
|
{"Upstream Channel ID", "docsis_type29ucd.upchid",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_config_ch_cnt,
|
|
{"Config Change Count", "docsis_type29ucd.confcngcnt",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Configuration Change Count", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_mini_slot_size,
|
|
{"Mini Slot Size (6.25us TimeTicks)", "docsis_type29ucd.mslotsize",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_down_chid,
|
|
{"Downstream Channel ID", "docsis_type29ucd.downchid",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Management Message", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_symbol_rate,
|
|
{"1 Symbol Rate (ksym/sec)", "docsis_type29ucd.symrate",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Symbol Rate", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_frequency,
|
|
{"2 Frequency (Hz)", "docsis_type29ucd.freq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"Upstream Center Frequency", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_preamble_pat,
|
|
{"3 Preamble Pattern", "docsis_type29ucd.preamble",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"Preamble Superstring", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_iuc,
|
|
{"Interval Usage Code", "docsis_type29ucd.iuc",
|
|
FT_UINT8, BASE_DEC, VALS (iuc_vals2), 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{&hf_docsis_burst_mod_type,
|
|
{"1 Modulation Type", "docsis_type29ucd.burst.modtype",
|
|
FT_UINT8, BASE_DEC, VALS (mod_vals2), 0x0,
|
|
"Modulation Type", HFILL}
|
|
},
|
|
{&hf_docsis_burst_diff_encoding,
|
|
{"2 Differential Encoding", "docsis_type29ucd.burst.diffenc",
|
|
FT_UINT8, BASE_DEC, VALS (on_off_vals), 0x0,
|
|
"Differential Encoding", HFILL}
|
|
},
|
|
{&hf_docsis_burst_preamble_len,
|
|
{"3 Preamble Length (Bits)", "docsis_type29ucd.burst.preamble_len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Preamble Length (Bits)", HFILL}
|
|
},
|
|
{&hf_docsis_burst_preamble_val_off,
|
|
{"4 Preamble Offset (Bits)", "docsis_type29ucd.burst.preamble_off",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Preamble Offset (Bits)", HFILL}
|
|
},
|
|
{&hf_docsis_burst_fec,
|
|
{"5 FEC (T)", "docsis_type29ucd.burst.fec",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"FEC (T) Codeword Parity Bits = 2^T", HFILL}
|
|
},
|
|
{&hf_docsis_burst_fec_codeword,
|
|
{"6 FEC Codeword Info bytes (k)", "docsis_type29ucd.burst.fec_codeword",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"FEC Codeword Info Bytes (k)", HFILL}
|
|
},
|
|
{&hf_docsis_burst_scrambler_seed,
|
|
{"7 Scrambler Seed", "docsis_type29ucd.burst.scrambler_seed",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
"Burst Descriptor", HFILL}
|
|
},
|
|
{&hf_docsis_burst_max_burst,
|
|
{"8 Max Burst Size (Minislots)", "docsis_type29ucd.burst.maxburst",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Max Burst Size (Minislots)", HFILL}
|
|
},
|
|
{&hf_docsis_burst_guard_time,
|
|
{"9 Guard Time Size (Symbol Times)", "docsis_type29ucd.burst.guardtime",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Guard Time Size", HFILL}
|
|
},
|
|
{&hf_docsis_burst_last_cw_len,
|
|
{"10 Last Codeword Length", "docsis_type29ucd.burst.last_cw_len",
|
|
FT_UINT8, BASE_DEC, VALS (last_cw_len_vals), 0x0,
|
|
"Last Codeword Length", HFILL}
|
|
},
|
|
{&hf_docsis_burst_scrambler_onoff,
|
|
{"11 Scrambler On/Off", "docsis_type29ucd.burst.scrambleronoff",
|
|
FT_UINT8, BASE_DEC, VALS (on_off_vals), 0x0,
|
|
"Scrambler On/Off", HFILL}
|
|
},
|
|
/* DOCSIS 2.0 UCD TLV definitions
|
|
* * #define type29ucd_EXT_PREAMBLE 6
|
|
* * #define type29ucd_SCDMA_MODE_ENABLE 7
|
|
* * #define type29ucd_SCDMA_SPREADING_INTERVAL 8
|
|
* * #define type29ucd_SCDMA_CODES_PER_MINI_SLOT 9
|
|
* * #define type29ucd_SCDMA_ACTIVE_CODES 10
|
|
* * #define type29ucd_SCDMA_CODE_HOPPING_SEED 11
|
|
* * #define type29ucd_SCDMA_US_RATIO_NUM 12
|
|
* * #define type29ucd_SCDMA_US_RATIO_DENOM 13
|
|
* * #define type29ucd_SCDMA_TIMESTAMP_SNAPSHOT 14
|
|
* * #define type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY 15
|
|
* * #define type29ucd_RANGING_REQUIRED 16
|
|
* */
|
|
{&hf_docsis_type29ucd_ext_preamble,
|
|
{"6 Extended Preamble Pattern", "docsis_type29ucd.extpreamble",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"Extended Preamble Pattern", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_mode_enable,
|
|
{"7 SCDMA Mode Enable", "docsis_type29ucd.scdmaenable",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA Mode Enable", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_spreading_interval,
|
|
{"8 SCDMA Spreading Interval", "docsis_type29ucd.scdmaspreadinginterval",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA Spreading Interval", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_codes_per_mini_slot,
|
|
{"9 SCDMA Codes per mini slot", "docsis_type29ucd.scdmacodesperminislot",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA Codes per mini slot", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_active_codes,
|
|
{"10 SCDMA Active Codes", "docsis_type29ucd.scdmaactivecodes",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA Active Codes", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_code_hopping_seed,
|
|
{"11 SCDMA Code Hopping Seed", "docsis_type29ucd.scdmacodehoppingseed",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA Code Hopping Seed", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_us_ratio_num,
|
|
{"12 SCDMA US Ratio Numerator", "docsis_type29ucd.scdmausrationum",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA US Ratio Numerator", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_us_ratio_denom,
|
|
{"13 SCDMA US Ratio Denominator", "docsis_type29ucd.scdmausratiodenom",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA US Ratio Denominator", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_scdma_timestamp_snapshot,
|
|
{"14 SCDMA Timestamp Snapshot", "docsis_type29ucd.scdmatimestamp",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"SCDMA Timestamp Snapshot", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_maintain_power_spectral_density,
|
|
{"15 Maintain power spectral density", "docsis_type29ucd.maintainpowerspectraldensity",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"Maintain power spectral density", HFILL}
|
|
},
|
|
{&hf_docsis_type29ucd_ranging_required,
|
|
{"16 Ranging Required", "docsis_type29ucd.rangingrequired",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
"Ranging Required", HFILL}
|
|
},
|
|
/* #define type29ucd_RS_INT_DEPTH 12
|
|
* #define type29ucd_RS_INT_BLOCK 13
|
|
* #define type29ucd_PREAMBLE_TYPE 14
|
|
* #define type29ucd_SCMDA_SCRAMBLER_ONOFF 15
|
|
* #define type29ucd_SCDMA_CODES_PER_SUBFRAME 16
|
|
* #define type29ucd_SCDMA_FRAMER_INT_STEP_SIZE 17
|
|
* #define type29ucd_TCM_ENABLED 18
|
|
*/
|
|
{&hf_docsis_rs_int_depth,
|
|
{"12 Scrambler On/Off", "docsis_type29ucd.burst.rsintdepth",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"R-S Interleaver Depth", HFILL}
|
|
},
|
|
{&hf_docsis_rs_int_block,
|
|
{"13 Scrambler On/Off", "docsis_type29ucd.burst.rsintblock",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"R-S Interleaver Block", HFILL}
|
|
},
|
|
{&hf_docsis_preamble_type,
|
|
{"14 Scrambler On/Off", "docsis_type29ucd.burst.preambletype",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Preamble Type", HFILL}
|
|
},
|
|
{&hf_docsis_scdma_scrambler_onoff,
|
|
{"15 Scrambler On/Off", "docsis_type29ucd.burst.scdmascrambleronoff",
|
|
FT_UINT8, BASE_DEC, VALS (on_off_vals), 0x0,
|
|
"SCDMA Scrambler On/Off", HFILL}
|
|
},
|
|
{&hf_docsis_scdma_codes_per_subframe,
|
|
{"16 Scrambler On/Off", "docsis_type29ucd.burst.scdmacodespersubframe",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"SCDMA Codes per Subframe", HFILL}
|
|
},
|
|
{&hf_docsis_scdma_framer_int_step_size,
|
|
{"17 Scrambler On/Off", "docsis_type29ucd.burst.scdmaframerintstepsize",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"SCDMA Framer Interleaving Step Size", HFILL}
|
|
},
|
|
{&hf_docsis_tcm_enabled,
|
|
{"18 Scrambler On/Off", "docsis_type29ucd.burst.tcmenabled",
|
|
FT_UINT8, BASE_DEC, VALS (on_off_vals), 0x0,
|
|
"TCM Enabled", HFILL}
|
|
},
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_docsis_type29ucd,
|
|
&ett_burst_descr,
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_docsis_type29ucd =
|
|
proto_register_protocol ("DOCSIS Upstream Channel Descriptor Type 29",
|
|
"DOCSIS type29ucd", "docsis_type29ucd");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array (proto_docsis_type29ucd, hf, array_length (hf));
|
|
proto_register_subtree_array (ett, array_length (ett));
|
|
|
|
register_dissector ("docsis_type29ucd", dissect_type29ucd, proto_docsis_type29ucd);
|
|
}
|
|
|
|
|
|
/* If this dissector uses sub-dissector registration add a registration routine.
|
|
This format is required because a script is used to find these routines and
|
|
create the code that calls these routines.
|
|
*/
|
|
void
|
|
proto_reg_handoff_docsis_type29ucd (void)
|
|
{
|
|
dissector_handle_t docsis_type29ucd_handle;
|
|
|
|
docsis_type29ucd_handle = find_dissector ("docsis_type29ucd");
|
|
dissector_add_uint ("docsis_mgmt", 0x1D, docsis_type29ucd_handle);
|
|
|
|
}
|