/* packet-type29ucd.c * Routines for Type 29 UCD - DOCSIS 2.0 only - Message dissection * Copyright 2003, Brian Wheeler * * $Id$ * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "moduleinfo.h" #include #include #include #include #include #define type29ucd_SYMBOL_RATE 1 #define type29ucd_FREQUENCY 2 #define type29ucd_PREAMBLE 3 #define type29ucd_BURST_DESCR 4 #define type29ucd_BURST_DESCR5 5 #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 #define type29ucd_MODULATION 1 #define type29ucd_DIFF_ENCODING 2 #define type29ucd_PREAMBLE_LEN 3 #define type29ucd_PREAMBLE_VAL_OFF 4 #define type29ucd_FEC 5 #define type29ucd_FEC_CODEWORD 6 #define type29ucd_SCRAMBLER_SEED 7 #define type29ucd_MAX_BURST 8 #define type29ucd_GUARD_TIME 9 #define type29ucd_LAST_CW_LEN 10 #define type29ucd_SCRAMBLER_ONOFF 11 #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 #define IUC_REQUEST 1 #define IUC_REQ_DATA 2 #define IUC_INIT_MAINT 3 #define IUC_STATION_MAINT 4 #define IUC_SHORT_DATA_GRANT 5 #define IUC_LONG_DATA_GRANT 6 #define IUC_NULL_IE 7 #define IUC_DATA_ACK 8 #define IUC_ADV_PHY_SHORT_DATA_GRANT 9 #define IUC_ADV_PHY_LONG_DATA_GRANT 10 #define IUC_ADV_PHY_UGS 11 #define IUC_RESERVED12 12 #define IUC_RESERVED13 13 #define IUC_RESERVED14 14 #define IUC_EXPANSION 15 /* Initialize the protocol and registered fields */ static int proto_docsis_type29ucd = -1; static int hf_docsis_type29ucd_upstream_chid = -1; static int hf_docsis_type29ucd_config_ch_cnt = -1; static int hf_docsis_type29ucd_mini_slot_size = -1; static int hf_docsis_type29ucd_down_chid = -1; static int hf_docsis_type29ucd_symbol_rate = -1; static int hf_docsis_type29ucd_frequency = -1; static int hf_docsis_type29ucd_preamble_pat = -1; static int hf_docsis_type29ucd_iuc = -1; static int hf_docsis_type29ucd_ext_preamble = -1; static int hf_docsis_type29ucd_scdma_mode_enable = -1; static int hf_docsis_type29ucd_scdma_spreading_interval = -1; static int hf_docsis_type29ucd_scdma_codes_per_mini_slot = -1; static int hf_docsis_type29ucd_scdma_active_codes = -1; static int hf_docsis_type29ucd_scdma_code_hopping_seed = -1; static int hf_docsis_type29ucd_scdma_us_ratio_num = -1; static int hf_docsis_type29ucd_scdma_us_ratio_denom = -1; static int hf_docsis_type29ucd_scdma_timestamp_snapshot = -1; static int hf_docsis_type29ucd_maintain_power_spectral_density = -1; static int hf_docsis_type29ucd_ranging_required = -1; static int hf_docsis_burst_mod_type = -1; static int hf_docsis_burst_diff_encoding = -1; static int hf_docsis_burst_preamble_len = -1; static int hf_docsis_burst_preamble_val_off = -1; static int hf_docsis_burst_fec = -1; static int hf_docsis_burst_fec_codeword = -1; static int hf_docsis_burst_scrambler_seed = -1; static int hf_docsis_burst_max_burst = -1; static int hf_docsis_burst_guard_time = -1; static int hf_docsis_burst_last_cw_len = -1; static int hf_docsis_burst_scrambler_onoff = -1; static int hf_docsis_rs_int_depth = -1; static int hf_docsis_rs_int_block = -1; static int hf_docsis_preamble_type = -1; static int hf_docsis_scdma_scrambler_onoff = -1; static int hf_docsis_scdma_codes_per_subframe = -1; static int hf_docsis_scdma_framer_int_step_size = -1; static int hf_docsis_tcm_enabled = -1; /* Initialize the subtree pointers */ static gint ett_docsis_type29ucd = -1; static gint ett_burst_descr = -1; static const value_string channel_tlv_vals[] = { {type29ucd_SYMBOL_RATE, "Symbol Rate"}, {type29ucd_FREQUENCY, "Frequency"}, {type29ucd_PREAMBLE, "Preamble Pattern"}, {type29ucd_BURST_DESCR, "Burst Descriptor"}, {type29ucd_BURST_DESCR5, "Burst Descriptor DOCSIS 2.0"}, {type29ucd_EXT_PREAMBLE, "Extended Preamble Pattern"}, {type29ucd_SCDMA_MODE_ENABLE, "SCDMA Mode Enabled"}, {type29ucd_SCDMA_SPREADING_INTERVAL, "SCDMA Spreading Intervals per Frame"}, {type29ucd_SCDMA_CODES_PER_MINI_SLOT, "SCDMA Codes per Mini-slot"}, {type29ucd_SCDMA_ACTIVE_CODES, "SCDMA Number of Active Codes"}, {type29ucd_SCDMA_CODE_HOPPING_SEED, "SCDMA Code Hopping Seed"}, {type29ucd_SCDMA_US_RATIO_NUM, "SCDMA US ratio numerator M"}, {type29ucd_SCDMA_US_RATIO_DENOM, "SCDMA US ratio denominator N"}, {type29ucd_SCDMA_TIMESTAMP_SNAPSHOT, "SCDMA Timestamp Snapshot"}, {type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY, "Maintain Power Spectral Density"}, {type29ucd_RANGING_REQUIRED, "Ranging Required"}, {0, NULL} }; static const value_string on_off_vals[] = { {1, "On"}, {2, "Off"}, {0, NULL} }; static const value_string mod_vals2[] = { {1, "QPSK"}, {2, "QAM16"}, {3, "QAM8"}, {4, "QAM32"}, {5, "QAM64"}, {6, "QAM128 (S-CDMA)"}, {0, NULL} }; value_string iuc_vals2[] = { {IUC_REQUEST, "Request"}, {IUC_REQ_DATA, "REQ/Data"}, {IUC_INIT_MAINT, "Initial Maintenance"}, {IUC_STATION_MAINT, "Station Maintenance"}, {IUC_SHORT_DATA_GRANT, "Short Data Grant"}, {IUC_LONG_DATA_GRANT, "Long Data Grant"}, {IUC_NULL_IE, "NULL IE"}, {IUC_DATA_ACK, "Data Ack"}, {IUC_ADV_PHY_SHORT_DATA_GRANT, "Advanced Phy Short Data Grant"}, {IUC_ADV_PHY_LONG_DATA_GRANT, "Advanced Phy Long Data Grant"}, {IUC_ADV_PHY_UGS, "Advanced Phy UGS"}, {IUC_RESERVED12, "Reserved 12"}, {IUC_RESERVED13, "Reserved 13"}, {IUC_RESERVED14, "Reserved 14"}, {IUC_EXPANSION, "IUC Expansion"}, {0, NULL} }; static const value_string last_cw_len_vals[] = { {1, "Fixed"}, {2, "Shortened"}, {0, NULL} }; /* Code to actually dissect the packets */ static void dissect_type29ucd (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree) { guint16 pos, endtlvpos; guint8 type, length; guint8 tlvlen, tlvtype; proto_tree *burst_descr_tree; proto_item *it; proto_tree *type29ucd_tree; proto_item *type29ucd_item; guint16 len; guint8 upchid, symrate; len = tvb_length_remaining (tvb, 0); upchid = tvb_get_guint8 (tvb, 0); /* if the upstream Channel ID is 0 then this is for Telephony Return) */ if (check_col (pinfo->cinfo, COL_INFO)) { col_clear (pinfo->cinfo, COL_INFO); if (upchid > 0) col_add_fstr (pinfo->cinfo, COL_INFO, "type29ucd Message: Channel ID = %u (U%u)", upchid, upchid - 1); else col_add_fstr (pinfo->cinfo, COL_INFO, "type29ucd Message: Channel ID = %u (Telephony Return)", upchid); } if (tree) { type29ucd_item = proto_tree_add_protocol_format (tree, proto_docsis_type29ucd, tvb, 0, tvb_length_remaining (tvb, 0), "type29ucd Message"); type29ucd_tree = proto_item_add_subtree (type29ucd_item, ett_docsis_type29ucd); proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_upstream_chid, tvb, 0, 1, FALSE); proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_config_ch_cnt, tvb, 1, 1, FALSE); proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_mini_slot_size, tvb, 2, 1, FALSE); proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_down_chid, tvb, 3, 1, FALSE); pos = 4; while (pos < len) { type = tvb_get_guint8 (tvb, pos++); length = tvb_get_guint8 (tvb, pos++); switch (type) { case type29ucd_SYMBOL_RATE: if (length == 1) { symrate = tvb_get_guint8 (tvb, pos); proto_tree_add_uint (type29ucd_tree, hf_docsis_type29ucd_symbol_rate, tvb, pos, length, symrate * 160); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_FREQUENCY: if (length == 4) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_frequency, tvb, pos, length, FALSE); pos = pos + length; } else { THROW (ReportedBoundsError); } break; case type29ucd_PREAMBLE: proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_preamble_pat, tvb, pos, length, FALSE); pos = pos + length; break; /* 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 */ case type29ucd_EXT_PREAMBLE: proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_ext_preamble, tvb, pos, length, FALSE); pos = pos + length; break; case type29ucd_SCDMA_MODE_ENABLE: if (length == 1) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_mode_enable, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_SPREADING_INTERVAL: if (length == 1) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_spreading_interval, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_CODES_PER_MINI_SLOT: if (length == 1) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_codes_per_mini_slot, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_ACTIVE_CODES: if (length == 1) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_active_codes, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_CODE_HOPPING_SEED: if (length == 2) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_code_hopping_seed, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_US_RATIO_NUM: if (length == 2) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_us_ratio_num, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_US_RATIO_DENOM: if (length == 2) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_us_ratio_denom, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_SCDMA_TIMESTAMP_SNAPSHOT: if (length == 9) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_scdma_timestamp_snapshot, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_MAINTAIN_POWER_SPECTRAL_DENSITY: if (length == 1) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_maintain_power_spectral_density, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; case type29ucd_RANGING_REQUIRED: if (length == 1) { proto_tree_add_item (type29ucd_tree, hf_docsis_type29ucd_ranging_required, tvb, pos, length, FALSE); } else { THROW (ReportedBoundsError); } pos = pos + length; break; /* DOCSIS 1.1 BURST DESCRIPTOR */ case type29ucd_BURST_DESCR: it = proto_tree_add_text (type29ucd_tree, tvb, pos, length, "4 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; } /* 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 Ethereal */ /* 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, "Upstream Channel ID", 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, "Mini Slot Size (6.25us TimeTicks)", 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_HEX, NULL, 0x0, "Preamble Superstring", HFILL} }, {&hf_docsis_type29ucd_iuc, {"Interval Usage Code", "docsis.type29ucd.iuc", FT_UINT8, BASE_DEC, VALS (iuc_vals2), 0x0, "Interval Usage Code", 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_HEX, NULL, 0x0, "Extended Preamble Pattern", HFILL} }, {&hf_docsis_type29ucd_scdma_mode_enable, {"7 SCDMA Mode Enable", "docsis.type29ucd.scdmaenable", FT_BYTES, BASE_HEX, NULL, 0x0, "SCDMA Mode Enable", HFILL} }, {&hf_docsis_type29ucd_scdma_spreading_interval, {"8 SCDMA Spreading Interval", "docsis.type29ucd.scdmaspreadinginterval", FT_BYTES, BASE_HEX, 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_HEX, NULL, 0x0, "SCDMA Codes per mini slot", HFILL} }, {&hf_docsis_type29ucd_scdma_active_codes, {"10 SCDMA Active Codes", "docsis.type29ucd.scdmaactivecodes", FT_BYTES, BASE_HEX, NULL, 0x0, "SCDMA Active Codes", HFILL} }, {&hf_docsis_type29ucd_scdma_code_hopping_seed, {"11 SCDMA Code Hopping Seed", "docsis.type29ucd.scdmacodehoppingseed", FT_BYTES, BASE_HEX, 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_HEX, 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_HEX, NULL, 0x0, "SCDMA US Ratio Denominator", HFILL} }, {&hf_docsis_type29ucd_scdma_timestamp_snapshot, {"14 SCDMA Timestamp Snapshot", "docsis.type29ucd.scdmatimestamp", FT_BYTES, BASE_HEX, NULL, 0x0, "SCDMA Timestamp Snapshot", HFILL} }, {&hf_docsis_type29ucd_maintain_power_spectral_density, {"15 Maintain power spectral density", "docsis.type29ucd.maintainpowerspectraldensity", FT_BYTES, BASE_HEX, NULL, 0x0, "Maintain power spectral density", HFILL} }, {&hf_docsis_type29ucd_ranging_required, {"16 Ranging Required", "docsis.type29ucd.rangingrequired", FT_BYTES, BASE_HEX, 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 ("docsis_mgmt", 0x1D, docsis_type29ucd_handle); }