nexmon – Rev 1
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/* packet-mdd.c
*
* Routines for MDD Message dissection
* Copyright 2014, Adrian Simionov <adrian.simionov@arrisi.com>
* Copyright 2007, Bruno Verstuyft <bruno.verstuyft@excentis.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST 1
#define MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP 2
#define DOWNSTREAM_AMBIGUITY_RESOLUTION_FREQUENCY_LIST 3
#define RECEIVE_CHANNEL_PROFILE_REPORTING_CONTROL 4
#define IP_INITIALIZATION_PARAMETERS 5
#define EARLY_AUTHENTICATION_AND_ENCRYPTION 6
#define UPSTREAM_ACTIVE_CHANNEL_LIST 7
#define UPSTREAM_AMBIGUITY_RESOLUTION_CHANNEL_LIST 8
#define UPSTREAM_FREQUENCY_RANGE 9
#define SYMBOL_CLOCK_LOCKING_INDICATOR 10
#define CM_STATUS_EVENT_CONTROL 11
#define UPSTREAM_TRANSMIT_POWER_REPORTING 12
#define DSG_DA_TO_DSID_ASSOCIATION_ENTRY 13
#define CM_STATUS_EVENT_ENABLE_NON_CHANNEL_SPECIFIC_EVENTS 15
#define EXTENDED_UPSTREAM_TRANSMIT_POWER_SUPPORT 16
/*Downstream Active Channel List*/
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_CHANNEL_ID 1
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_FREQUENCY 2
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_MODULATION_ORDER_ANNEX 3
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_PRIMARY_CAPABLE 4
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_CM_STATUS_EVENT_ENABLE_BITMASK 5
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_MAP_UCD_TRANSPORT_INDICATOR 6
#define DOWNSTREAM_ACTIVE_CHANNEL_LIST_OFDM_PLC_PARAMETERS 7
/*Mac Domain Downstream Service Group*/
#define MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP_MD_DS_SG_IDENTIFIER 1
#define MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP_CHANNEL_IDS 2
/*Modulation Orders*/
#define QAM64 0
#define QAM256 1
/*Annexes*/
#define J83_ANNEX_A 0
#define J83_ANNEX_B 1
#define J83_ANNEX_C 2
/*Primary Capable*/
#define NOT_PRIMARY_CAPABLE 0
#define PRIMARY_CAPABLE 1
/*Can carry MAP and UCD*/
#define CANNOT_CARRY_MAP_UCD 0
#define CAN_CARRY_MAP_UCD 1
/*Receive Channel Profile Reporting Control*/
#define RCP_CENTER_FREQUENCY_SPACING 1
#define VERBOSE_RCP_REPORTING 2
/*Frequency spacing*/
#define ASSUME_6MHZ_CENTER_FREQUENCY_SPACING 0
#define ASSUME_8MHZ_CENTER_FREQUENCY_SPACING 1
/*Verbose RCP reporting*/
#define RCP_NO_VERBOSE_REPORTING 0
#define RCP_VERBOSE_REPORTING 1
/*Sub-TLVs for IP Initialization Parameters*/
#define IP_PROVISIONING_MODE 1
#define PRE_REGISTRATION_DSID 2
/*IP Provisioning Modes*/
#define IPv4_ONLY 0
#define IPv6_ONLY 1
#define IP_ALTERNATE 2
#define DUAL_STACK 3
/*Early authentication and encryption*/
#define EAE_DISABLED 0
#define EAE_ENABLED 1
/*Upstream Active Channel List*/
#define UPSTREAM_ACTIVE_CHANNEL_LIST_UPSTREAM_CHANNEL_ID 1
#define UPSTREAM_ACTIVE_CHANNEL_LIST_CM_STATUS_EVENT_ENABLE_BITMASK 2
/*Upstream Frequency Range*/
#define STANDARD_UPSTREAM_FREQUENCY_RANGE 0
#define EXTENDED_UPSTREAM_FREQUENCY_RANGE 1
/*Symbol Clock Locking Indicator*/
#define NOT_LOCKED_TO_MASTER_CLOCK 0
#define LOCKED_TO_MASTER_CLOCK 1
/*CM-STATUS Event Control */
#define EVENT_TYPE_CODE 1
#define MAXIMUM_EVENT_HOLDOFF_TIMER 2
#define MAXIMUM_NUMBER_OF_REPORTS_PER_EVENT 3
/*CM-STATUS Events*/
#define SECONDARY_CHANNEL_MDD_TIMEOUT 1
#define QAM_FEC_LOCK_FAILURE 2
#define SEQUENCE_OUT_OF_RANGE 3
#define MDD_RECOVERY 4
#define QAM_FEC_LOCK_RECOVERY 5
#define T4_TIMEOUT 6
#define T3_RETRIES_EXCEEDED 7
#define SUCCESFUL_RANGING_AFTER_T3_RETRIES_EXCEEDED 8
#define CM_OPERATING_ON_BATTERY_BACKUP 9
#define CM_RETURNED_TO_AC_POWER 10
/*Upstream Transmit Power Reporting*/
#define CM_DOESNT_REPORT_TRANSMIT_POWER 0
#define CM_REPORTS_TRANSMIT_POWER 1
/*Dsg DA to DSID association entry*/
#define DSG_DA_TO_DSID_ASSOCIATION_DA 1
#define DSG_DA_TO_DSID_ASSOCIATION_DSID 2
/* Define Tukey raised cosine window */
#define TUKEY_0TS 0
#define TUKEY_64TS 1
#define TUKEY_128TS 2
#define TUKEY_192TS 3
#define TUKEY_256TS 4
/* Define Cyclic prefix */
#define CYCLIC_PREFIX_192_TS 0
#define CYCLIC_PREFIX_256_TS 1
#define CYCLIC_PREFIX_512_TS 2
#define CYCLIC_PREFIX_768_TS 3
#define CYCLIC_PREFIX_1024_TS 4
/* Define Sub carrier spacing */
#define SPACING_25KHZ 0
#define SPACING_50KHZ 1
void proto_register_docsis_mdd(void);
void proto_reg_handoff_docsis_mdd(void);
static const value_string J83_annex_vals[] = {
{J83_ANNEX_A, "J.83 Annex A"},
{J83_ANNEX_B, "J.83 Annex B"},
{J83_ANNEX_C, "J.83 Annex C"},
{0, NULL}
};
static const value_string modulation_order_vals[] = {
{QAM64, "64 QAM"},
{QAM256, "256 QAM"},
{0, NULL}
};
static const value_string primary_capable_vals[] = {
{NOT_PRIMARY_CAPABLE, "Channel is not primary-capable"},
{PRIMARY_CAPABLE, "channel is primary-capable"},
{0, NULL}
};
static const value_string map_ucd_transport_indicator_vals[] = {
{CANNOT_CARRY_MAP_UCD, "Channel cannot carry MAPs and UCDs for the MAC domain for which the MDD is sent"},
{CAN_CARRY_MAP_UCD, "Channel can carry MAPs and UCDs for the MAC domain for which the MDD is sent"},
{0, NULL}
};
static const value_string tukey_raised_cosine_vals[] = {
{TUKEY_0TS, "0 microseconds (0 * Ts)"},
{TUKEY_64TS, "0.3125 microseconds (64 * Ts)"},
{TUKEY_128TS, "0.625 microseconds (128 * Ts)"},
{TUKEY_192TS, "0.9375 microseconds (192 * Ts)"},
{TUKEY_256TS, "1.25 microseconds (256 * Ts)"},
{0, NULL}
};
static const value_string cyclic_prefix_vals[] = {
{CYCLIC_PREFIX_192_TS, "0.9375 microseconds (192 * Ts)"},
{CYCLIC_PREFIX_256_TS, "1.25 microseconds (256 * Ts)"},
{CYCLIC_PREFIX_512_TS, "2.5 microseconds (512 * Ts) 3"},
{CYCLIC_PREFIX_768_TS, "3.75 microseconds (768 * Ts)"},
{CYCLIC_PREFIX_1024_TS, "5 microseconds (1024 * Ts)"},
{0, NULL}
};
static const value_string spacing_vals[] = {
{SPACING_25KHZ, "25Khz"},
{SPACING_50KHZ, "50Khz"},
{0, NULL}
};
static const value_string mdd_tlv_vals[] = {
{DOWNSTREAM_ACTIVE_CHANNEL_LIST, "Downstream Active Channel List"},
{MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP, "Mac Domain Downstream Service Group"},
{DOWNSTREAM_AMBIGUITY_RESOLUTION_FREQUENCY_LIST, "Downstream Ambiguity Resolution Frequency List "},
{RECEIVE_CHANNEL_PROFILE_REPORTING_CONTROL , "Receive Channel Profile Reporting Control"},
{IP_INITIALIZATION_PARAMETERS , "IP Initialization Parameters"},
{EARLY_AUTHENTICATION_AND_ENCRYPTION , "Early Authentication and Encryption"},
{UPSTREAM_ACTIVE_CHANNEL_LIST , "Upstream Active Channel List"},
{UPSTREAM_AMBIGUITY_RESOLUTION_CHANNEL_LIST , "Upstream Ambiguity Resolution Channel List"},
{UPSTREAM_FREQUENCY_RANGE , "Upstream Frequency Range"},
{SYMBOL_CLOCK_LOCKING_INDICATOR , "Symbol Clock Locking Indicator"},
{CM_STATUS_EVENT_CONTROL , "CM-STATUS Event Control"},
{UPSTREAM_TRANSMIT_POWER_REPORTING , "Upstream Transmit Power Reporting"},
{DSG_DA_TO_DSID_ASSOCIATION_ENTRY , "DSG DA-to-DSID Association Entry"},
{CM_STATUS_EVENT_ENABLE_NON_CHANNEL_SPECIFIC_EVENTS , "CM-STATUS Event Enable for Non-Channel-Specific-Events"},
{EXTENDED_UPSTREAM_TRANSMIT_POWER_SUPPORT , "Extended Upstream Transmit Power Support"},
{0, NULL}
};
static const value_string rpc_center_frequency_spacing_vals[] = {
{ASSUME_6MHZ_CENTER_FREQUENCY_SPACING , "CM MUST report only Receive Channel Profiles assuming 6 MHz center frequency spacing"},
{ASSUME_8MHZ_CENTER_FREQUENCY_SPACING , "CM MUST report only Receive Channel Profiles assuming 8 MHz center frequency spacing"},
{0, NULL}
};
static const value_string verbose_rpc_reporting_vals[] = {
{RCP_NO_VERBOSE_REPORTING , "CM MUST NOT provide verbose reporting of all its Receive Channel Profile(s) (both standard profiles and manufacturers profiles)."},
{RCP_VERBOSE_REPORTING , "CM MUST provide verbose reporting of Receive Channel Profile(s) (both standard profiles and manufacturers profiles)."},
{0, NULL}
};
static const value_string ip_provisioning_mode_vals[] = {
{IPv4_ONLY , "IPv4 Only"},
{IPv6_ONLY , "IPv6 Only"},
{IP_ALTERNATE, "Alternate"},
{DUAL_STACK , "Dual Stack"},
{0, NULL}
};
static const value_string eae_vals[] = {
{EAE_DISABLED , "early authentication and encryption disabled"},
{EAE_ENABLED , "early authentication and encryption enabled"},
{0, NULL}
};
static const value_string upstream_frequency_range_vals[] = {
{STANDARD_UPSTREAM_FREQUENCY_RANGE, "Standard Upstream Frequency Range"},
{EXTENDED_UPSTREAM_FREQUENCY_RANGE, "Extended Upstream Frequency Range"},
{0, NULL}
};
static const value_string symbol_clock_locking_indicator_vals[] = {
{NOT_LOCKED_TO_MASTER_CLOCK, "Symbol Clock is not locked to Master Clock"},
{LOCKED_TO_MASTER_CLOCK, "Symbol Clock is locked to Master Clock"},
{0, NULL}
};
static const value_string symbol_cm_status_event_vals[] = {
{SECONDARY_CHANNEL_MDD_TIMEOUT, "Secondary Channel MDD timeout"},
{QAM_FEC_LOCK_FAILURE, "Qam FEC Lock Failure"},
{SEQUENCE_OUT_OF_RANGE, "Sequence out of Range"},
{MDD_RECOVERY, "MDD Recovery"},
{QAM_FEC_LOCK_RECOVERY, "Qam FEC Lock Recovery"},
{T4_TIMEOUT, "T4 Timeout"},
{T3_RETRIES_EXCEEDED, "T3 Retries Exceeded"},
{SUCCESFUL_RANGING_AFTER_T3_RETRIES_EXCEEDED, "Successful ranging after T3 Retries Exceeded"},
{CM_OPERATING_ON_BATTERY_BACKUP, "CM Operating on Battery Backup"},
{CM_RETURNED_TO_AC_POWER, "CM Returned to AC Power"},
{0, NULL}
};
static const value_string upstream_transmit_power_reporting_vals[] = {
{CM_DOESNT_REPORT_TRANSMIT_POWER, "CM does not report transmit power in RNG-REQ, INIT-RNG-REQ, and B-INIT-RNG-REQ messages"},
{CM_REPORTS_TRANSMIT_POWER, "CM reports transmit power in RNG-REQ, INIT-RNG-REQ, and B-INIT-RNG-REQ messages"},
{0, NULL}
};
/* Windows does not allow data copy between dlls */
const true_false_string mdd_tfs_on_off = { "On", "Off" };
/* Initialize the protocol and registered fields */
static int proto_docsis_mdd = -1;
static int hf_docsis_mdd_ccc = -1;
static int hf_docsis_mdd_number_of_fragments = -1;
static int hf_docsis_mdd_fragment_sequence_number = -1;
static int hf_docsis_mdd_current_channel_dcid = -1;
static int hf_docsis_mdd_downstream_active_channel_list_channel_id = -1;
static int hf_docsis_mdd_downstream_active_channel_list_frequency = -1;
static int hf_docsis_mdd_downstream_active_channel_list_annex = -1;
static int hf_docsis_mdd_downstream_active_channel_list_modulation_order = -1;
static int hf_docsis_mdd_downstream_active_channel_list_primary_capable = -1;
static int hf_docsis_mdd_downstream_active_channel_list_map_ucd_transport_indicator = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_mdd_timeout = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_qam_fec_lock_failure = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_mdd_recovery = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_qam_fec_lock_recovery = -1;
static int hf_docsis_mdd_ofdm_plc_parameters_tukey_raised_cosine_window = -1;
static int hf_docsis_mdd_ofdm_plc_parameters_cyclic_prefix = -1;
static int hf_docsis_mdd_ofdm_plc_parameters_sub_carrier_spacing = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_t4_timeout = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_t3_retries_exceeded = -1;
static int hf_docsis_mdd_cm_status_event_enable_bitmask_successful_ranging_after_t3_retries_exceeded = -1;
static int hf_docsis_mdd_mac_domain_downstream_service_group_md_ds_sg_identifier = -1;
static int hf_docsis_mdd_mac_domain_downstream_service_group_channel_id = -1;
static int hf_docsis_mdd_downstream_ambiguity_resolution_frequency = -1;
static int hf_docsis_mdd_rpc_center_frequency_spacing = -1;
static int hf_docsis_mdd_verbose_rcp_reporting = -1;
static int hf_docsis_mdd_ip_provisioning_mode = -1;
static int hf_docsis_mdd_pre_registration_dsid = -1;
static int hf_docsis_mdd_early_authentication_and_encryption = -1;
static int hf_docsis_mdd_upstream_active_channel_list_upstream_channel_id = -1;
static int hf_docsis_mdd_upstream_ambiguity_resolution_channel_list_channel_id = -1;
static int hf_docsis_mdd_upstream_frequency_range = -1;
static int hf_docsis_mdd_symbol_clock_locking_indicator = -1;
static int hf_docsis_mdd_event_type = -1;
static int hf_docsis_mdd_maximum_event_holdoff_timer = -1;
static int hf_docsis_mdd_maximum_number_of_reports_per_event = -1;
static int hf_docsis_mdd_upstream_transmit_power_reporting = -1;
static int hf_docsis_mdd_dsg_da_to_dsid_association_da = -1;
static int hf_docsis_mdd_dsg_da_to_dsid_association_dsid = -1;
static int hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_sequence_out_of_range = -1;
static int hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_cm_operating_on_battery_backup = -1;
static int hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_cm_returned_to_ac_power = -1;
static int hf_docsis_mdd_extended_upstream_transmit_power_support = -1;
/* Initialize the subtree pointers */
static gint ett_docsis_mdd = -1;
static gint ett_tlv = -1;
static gint ett_sub_tlv = -1;
/* Dissection */
static int
dissect_mdd (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_)
{
proto_item *it;
proto_tree *mdd_tree;
int pos;
int subpos = 0;
gint len;
guint8 type, length;
guint8 subtype, sublength;
int i;
proto_tree *tlv_tree;
proto_tree *tlv_sub_tree;
proto_item *text_item;
len = tvb_reported_length_remaining (tvb, 0);
col_set_str(pinfo->cinfo, COL_INFO, "MDD Message:");
if (tree)
{
it = proto_tree_add_protocol_format (tree, proto_docsis_mdd, tvb, 0, -1,"MDD Message");
mdd_tree = proto_item_add_subtree (it, ett_docsis_mdd);
proto_tree_add_item (mdd_tree, hf_docsis_mdd_ccc, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_tree_add_item (mdd_tree, hf_docsis_mdd_number_of_fragments, tvb, 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item (mdd_tree, hf_docsis_mdd_fragment_sequence_number, tvb, 2, 1, ENC_BIG_ENDIAN);
proto_tree_add_item (mdd_tree, hf_docsis_mdd_current_channel_dcid, tvb, 3, 1, ENC_BIG_ENDIAN);
/*TLVs...*/
pos = 4;
while (pos < len)
{
type = tvb_get_guint8 (tvb, pos);
length = tvb_get_guint8 (tvb, pos + 1);
tlv_tree = proto_tree_add_subtree(mdd_tree, tvb, pos, length + 2, ett_tlv, NULL, val_to_str(type, mdd_tlv_vals, "Unknown TLV (%u)"));
switch(type) {
case DOWNSTREAM_ACTIVE_CHANNEL_LIST:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_CHANNEL_ID:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_downstream_active_channel_list_channel_id, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_FREQUENCY:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_downstream_active_channel_list_frequency, tvb, subpos + 2 , 4, ENC_BIG_ENDIAN);
break;
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_MODULATION_ORDER_ANNEX:
tlv_sub_tree = proto_tree_add_subtree(tlv_tree, tvb, subpos + 2, 1, ett_sub_tlv, NULL, "Modulation Order/Annex");
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_downstream_active_channel_list_modulation_order, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_downstream_active_channel_list_annex, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_PRIMARY_CAPABLE:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_downstream_active_channel_list_primary_capable, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_CM_STATUS_EVENT_ENABLE_BITMASK:
tlv_sub_tree = proto_tree_add_subtree(tlv_tree, tvb, subpos + 2, 2, ett_sub_tlv, NULL, "CM-STATUS Event Enable Bitmask");
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_mdd_timeout, tvb, subpos + 2 , 2,ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_qam_fec_lock_failure, tvb, subpos + 2 , 2, ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_mdd_recovery, tvb, subpos + 2 , 2,ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_qam_fec_lock_recovery, tvb, subpos + 2 , 2, ENC_BIG_ENDIAN);
break;
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_MAP_UCD_TRANSPORT_INDICATOR:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_downstream_active_channel_list_map_ucd_transport_indicator, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case DOWNSTREAM_ACTIVE_CHANNEL_LIST_OFDM_PLC_PARAMETERS:
tlv_sub_tree = proto_tree_add_subtree(tlv_tree, tvb, subpos + 2, 1, ett_sub_tlv, NULL, "OFDM PLC Parameters");
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_ofdm_plc_parameters_tukey_raised_cosine_window, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_ofdm_plc_parameters_cyclic_prefix, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_ofdm_plc_parameters_sub_carrier_spacing, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
}
subpos += sublength + 2;
}
break;
case MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP_MD_DS_SG_IDENTIFIER:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_mac_domain_downstream_service_group_md_ds_sg_identifier, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case MAC_DOMAIN_DOWNSTREAM_SERVICE_GROUP_CHANNEL_IDS:
for (i = 0; i < sublength; i++) {
proto_tree_add_item (tlv_tree, hf_docsis_mdd_mac_domain_downstream_service_group_channel_id, tvb, subpos + 2 + i , 1, ENC_BIG_ENDIAN);
}
break;
}
subpos += sublength + 2;
}
break;
case DOWNSTREAM_AMBIGUITY_RESOLUTION_FREQUENCY_LIST:
subpos = pos + 2;
for (i = 0; i < length; i+=4) {
proto_tree_add_item (tlv_tree, hf_docsis_mdd_downstream_ambiguity_resolution_frequency, tvb, subpos + i , 4, ENC_BIG_ENDIAN);
}
break;
case RECEIVE_CHANNEL_PROFILE_REPORTING_CONTROL:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case RCP_CENTER_FREQUENCY_SPACING:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_rpc_center_frequency_spacing, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case VERBOSE_RCP_REPORTING:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_verbose_rcp_reporting, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
}
subpos += sublength + 2;
}
break;
case IP_INITIALIZATION_PARAMETERS:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case IP_PROVISIONING_MODE:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_ip_provisioning_mode, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case PRE_REGISTRATION_DSID:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_pre_registration_dsid, tvb, subpos + 2 , 3, ENC_BIG_ENDIAN);
break;
}
subpos += sublength + 2;
}
break;
case EARLY_AUTHENTICATION_AND_ENCRYPTION:
subpos = pos + 2;
proto_tree_add_item (tlv_tree, hf_docsis_mdd_early_authentication_and_encryption, tvb, subpos, 1, ENC_BIG_ENDIAN);
break;
case UPSTREAM_ACTIVE_CHANNEL_LIST:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case UPSTREAM_ACTIVE_CHANNEL_LIST_UPSTREAM_CHANNEL_ID:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_upstream_active_channel_list_upstream_channel_id, tvb, subpos + 2 , 1, ENC_BIG_ENDIAN);
break;
case UPSTREAM_ACTIVE_CHANNEL_LIST_CM_STATUS_EVENT_ENABLE_BITMASK:
tlv_sub_tree = proto_tree_add_subtree(tlv_tree, tvb, subpos + 2, 2, ett_sub_tlv, NULL, "CM-STATUS Event Enable Bitmask");
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_t4_timeout, tvb, subpos + 2 , 2, ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_t3_retries_exceeded, tvb, subpos + 2 , 2, ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_bitmask_successful_ranging_after_t3_retries_exceeded, tvb, subpos + 2 , 2, ENC_BIG_ENDIAN);
break;
}
subpos += sublength + 2;
}
break;
case UPSTREAM_AMBIGUITY_RESOLUTION_CHANNEL_LIST:
sublength = tvb_get_guint8 (tvb, subpos + 1);
for (i = 0; i < sublength; i++) {
proto_tree_add_item (tlv_tree, hf_docsis_mdd_upstream_ambiguity_resolution_channel_list_channel_id, tvb, pos + 2 + i , 1, ENC_BIG_ENDIAN);
}
break;
case UPSTREAM_FREQUENCY_RANGE:
subpos = pos + 2;
proto_tree_add_item (tlv_tree, hf_docsis_mdd_upstream_frequency_range, tvb, subpos, 1, ENC_BIG_ENDIAN);
break;
case SYMBOL_CLOCK_LOCKING_INDICATOR:
subpos = pos + 2;
proto_tree_add_item (tlv_tree, hf_docsis_mdd_symbol_clock_locking_indicator, tvb, subpos, 1, ENC_BIG_ENDIAN);
break;
case CM_STATUS_EVENT_CONTROL:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case EVENT_TYPE_CODE:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_event_type, tvb, subpos+2, 1, ENC_BIG_ENDIAN);
break;
case MAXIMUM_EVENT_HOLDOFF_TIMER:
text_item = proto_tree_add_item (tlv_tree, hf_docsis_mdd_maximum_event_holdoff_timer, tvb, subpos, 2, ENC_BIG_ENDIAN);
proto_item_append_text(text_item, " (%d ms)", (256*tvb_get_guint8 (tvb, subpos) + tvb_get_guint8 (tvb, subpos + 1)) * 20);
break;
case MAXIMUM_NUMBER_OF_REPORTS_PER_EVENT:
text_item = proto_tree_add_item (tlv_tree, hf_docsis_mdd_maximum_number_of_reports_per_event, tvb, subpos, 1, ENC_BIG_ENDIAN);
if ( tvb_get_guint8 (tvb, subpos) == 0) {
proto_item_append_text(text_item, " (Unlimited)");
}
break;
}
subpos += sublength + 2;
}
break;
case UPSTREAM_TRANSMIT_POWER_REPORTING:
subpos = pos + 2;
proto_tree_add_item (tlv_tree, hf_docsis_mdd_upstream_transmit_power_reporting, tvb, subpos, 1, ENC_BIG_ENDIAN);
break;
case DSG_DA_TO_DSID_ASSOCIATION_ENTRY:
subpos = pos + 2;
while (subpos < pos + length + 2) {
subtype = tvb_get_guint8 (tvb, subpos);
sublength = tvb_get_guint8 (tvb, subpos + 1);
switch(subtype) {
case DSG_DA_TO_DSID_ASSOCIATION_DA:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_dsg_da_to_dsid_association_da, tvb, subpos + 2, 6, ENC_NA);
break;
case DSG_DA_TO_DSID_ASSOCIATION_DSID:
proto_tree_add_item (tlv_tree, hf_docsis_mdd_dsg_da_to_dsid_association_dsid, tvb, subpos + 2, 3, ENC_BIG_ENDIAN);
break;
}
subpos += sublength + 2;
}
break;
case CM_STATUS_EVENT_ENABLE_NON_CHANNEL_SPECIFIC_EVENTS:
subpos = pos + 2;
tlv_sub_tree = proto_tree_add_subtree(tlv_tree, tvb, subpos, 2, ett_sub_tlv, NULL, "CM-STATUS Event Enable Bitmask for Non-Channel-Specific Events");
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_sequence_out_of_range, tvb, subpos, 2,ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_cm_operating_on_battery_backup, tvb, subpos , 2,ENC_BIG_ENDIAN);
proto_tree_add_item (tlv_sub_tree, hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_cm_returned_to_ac_power, tvb, subpos , 2,ENC_BIG_ENDIAN);
break;
case EXTENDED_UPSTREAM_TRANSMIT_POWER_SUPPORT:
subpos = pos + 2;
proto_tree_add_item (tlv_tree, hf_docsis_mdd_extended_upstream_transmit_power_support, tvb, subpos, 1, ENC_BIG_ENDIAN);
break;
}
pos += length + 2;
}
} /* if(tree) */
return tvb_captured_length(tvb);
}
/* Register the protocol with Wireshark */
void proto_register_docsis_mdd (void)
{
/* Setup list of header fields See Section 1.6.1 for details*/
static hf_register_info hf[] = {
{&hf_docsis_mdd_ccc,
{"Configuration Change Count", "docsis_mdd.ccc",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Configuration Change Count", HFILL}
},
{&hf_docsis_mdd_number_of_fragments,
{"Number of Fragments", "docsis_mdd.number_of_fragments",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Number of Fragments", HFILL}
},
{&hf_docsis_mdd_fragment_sequence_number,
{"Fragment Sequence Number", "docsis_mdd.fragment_sequence_number",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Fragment Sequence Number", HFILL}
},
{&hf_docsis_mdd_current_channel_dcid,
{"Current Channel DCID", "docsis_mdd.current_channel_dcid",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Current Channel DCID", HFILL}
},
{&hf_docsis_mdd_downstream_active_channel_list_channel_id,
{"Channel ID", "docsis_mdd.downstream_active_channel_list_channel_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Downstream Active Channel List Channel ID", HFILL}
},
{&hf_docsis_mdd_downstream_active_channel_list_frequency,
{"Frequency", "docsis_mdd.downstream_active_channel_list_frequency",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Mdd Downstream Active Channel List Frequency", HFILL}
},
{&hf_docsis_mdd_downstream_active_channel_list_annex,
{"Annex", "docsis_mdd.downstream_active_channel_list_annex",
FT_UINT8, BASE_DEC, VALS(J83_annex_vals), 0xF0,
"Mdd Downstream Active Channel List Annex", HFILL}
},
{&hf_docsis_mdd_downstream_active_channel_list_modulation_order,
{"Modulation Order", "docsis_mdd.downstream_active_channel_list_modulation_order",
FT_UINT8, BASE_DEC, VALS(modulation_order_vals), 0x0F,
"Mdd Downstream Active Channel List Modulation Order", HFILL}
},
{&hf_docsis_mdd_downstream_active_channel_list_primary_capable,
{"Primary Capable", "docsis_mdd.downstream_active_channel_list_primary_capable",
FT_UINT8, BASE_DEC, VALS(primary_capable_vals), 0x0,
"Mdd Downstream Active Channel List Primary Capable", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_mdd_timeout,
{"MDD Timeout", "docsis_mdd.downstream_active_channel_list_mdd_timeout",
FT_UINT16, BASE_DEC, NULL, 0x0002,
"Mdd Downstream Active Channel List MDD Timeout", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_qam_fec_lock_failure,
{"QAM/FEC Lock Failure", "docsis_mdd.cm_status_event_enable_bitmask_qam_fec_lock_failure",
FT_UINT16, BASE_DEC, NULL, 0x0004,
"Mdd Downstream Active Channel List QAM/FEC Lock Failure", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_mdd_recovery,
{"MDD Recovery", "docsis_mdd.cm_status_event_enable_bitmask_mdd_recovery",
FT_UINT16, BASE_DEC, NULL, 0x0010,
"CM-STATUS event MDD Recovery", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_qam_fec_lock_recovery,
{"QAM/FEC Lock Recovery", "docsis_mdd.cm_status_event_enable_bitmask_qam_fec_lock_recovery",
FT_UINT16, BASE_DEC, NULL, 0x0020,
"CM-STATUS event QAM/FEC Lock Recovery", HFILL}
},
{&hf_docsis_mdd_downstream_active_channel_list_map_ucd_transport_indicator,
{"MAP and UCD transport indicator", "docsis_mdd.downstream_active_channel_list_map_ucd_transport_indicator",
FT_UINT8, BASE_DEC, VALS(map_ucd_transport_indicator_vals), 0x0,
"Mdd Downstream Active Channel List MAP and UCD Transport Indicator", HFILL}
},
{&hf_docsis_mdd_ofdm_plc_parameters_tukey_raised_cosine_window,
{"Tukey raised cosine window", "docsis_mdd.ofdm_plc_parameters_tukey_raised_cosine_window",
FT_UINT8, BASE_DEC, VALS(tukey_raised_cosine_vals), 0x07,
"OFDM PLC Parameters Tukey raised cosine window", HFILL}
},
{&hf_docsis_mdd_ofdm_plc_parameters_cyclic_prefix,
{"Cyclic prefix", "docsis_mdd.ofdm_plc_parameters_cyclic_prefix",
FT_UINT8, BASE_DEC, VALS(cyclic_prefix_vals), 0x38,
"OFDM PLC parameters Cyclic prefix", HFILL}
},
{&hf_docsis_mdd_ofdm_plc_parameters_sub_carrier_spacing,
{"Sub carrier spacing", "docsis_mdd.ofdm_plc_parameters_sub_carrier_spacing",
FT_UINT8, BASE_DEC, VALS(spacing_vals), 0x40,
"OFDM PLC parameters Sub carrier spacing", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_t4_timeout,
{"T4 timeout", "docsis_mdd.cm_status_event_enable_bitmask_t4_timeout",
FT_UINT16, BASE_DEC, NULL, 0x0040,
"CM-STATUS event T4 timeout", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_t3_retries_exceeded,
{"T3 Retries Exceeded", "docsis_mdd.cm_status_event_enable_bitmask_t3_retries_exceeded",
FT_UINT16, BASE_DEC, NULL, 0x0080,
"CM-STATUS event T3 Retries Exceeded", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_bitmask_successful_ranging_after_t3_retries_exceeded,
{"Successful Ranging after T3 Retries Exceeded", "docsis_mdd.cm_status_event_enable_bitmask_successful_ranging_after_t3_retries_exceeded",
FT_UINT16, BASE_DEC, NULL, 0x0100,
"CM-STATUS event Successful Ranging after T3 Retries Exceeded", HFILL}
},
{&hf_docsis_mdd_mac_domain_downstream_service_group_channel_id,
{"Channel Id", "docsis_mdd.mac_domain_downstream_service_group_channel_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Mac Domain Downstream Service Group Channel Id", HFILL}
},
{&hf_docsis_mdd_mac_domain_downstream_service_group_md_ds_sg_identifier,
{"MD-DS-SG Identifier", "docsis_mdd.mac_domain_downstream_service_group_md_ds_sg_identifier",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Mac Domain Downstream Service Group MD-DS-SG Identifier", HFILL}
},
{&hf_docsis_mdd_downstream_ambiguity_resolution_frequency,
{"Frequency", "docsis_mdd.downstream_ambiguity_resolution_frequency",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Mdd Downstream Ambiguity Resolution frequency", HFILL}
},
{&hf_docsis_mdd_rpc_center_frequency_spacing,
{"RPC Center Frequency Spacing", "docsis_mdd.rpc_center_frequency_spacing",
FT_UINT8, BASE_DEC, VALS(rpc_center_frequency_spacing_vals), 0x0,
"Mdd RPC Center Frequency Spacing", HFILL}
},
{&hf_docsis_mdd_verbose_rcp_reporting,
{"Verbose RCP reporting", "docsis_mdd.verbose_rpc_reporting",
FT_UINT8, BASE_DEC, VALS(verbose_rpc_reporting_vals), 0x0,
"Mdd Verbose RPC Reporting", HFILL}
},
{&hf_docsis_mdd_ip_provisioning_mode,
{"IP Provisioning Mode", "docsis_mdd.ip_provisioning_mode",
FT_UINT8, BASE_DEC, VALS(ip_provisioning_mode_vals), 0x0,
"Mdd IP Provisioning Mode", HFILL}
},
{&hf_docsis_mdd_pre_registration_dsid,
{"Pre-registration DSID", "docsis_mdd.pre_registration_dsid",
FT_UINT24, BASE_DEC, NULL, 0x0FFFFF,
"Mdd Pre-registration DSID", HFILL}
},
{&hf_docsis_mdd_early_authentication_and_encryption,
{"Early Authentication and Encryption", "docsis_mdd.early_authentication_and_encryption",
FT_UINT8, BASE_DEC, VALS(eae_vals), 0x0,
"Mdd Early Authentication and Encryption", HFILL}
},
{&hf_docsis_mdd_upstream_active_channel_list_upstream_channel_id,
{"Upstream Channel Id", "docsis_mdd.upstream_active_channel_list_upstream_channel_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Upstream Active Channel List Upstream Channel Id", HFILL}
},
{&hf_docsis_mdd_upstream_ambiguity_resolution_channel_list_channel_id,
{"Channel Id", "docsis_mdd.upstream_ambiguity_resolution_channel_list_channel_id",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Mac Domain Upstream Ambiguity Resolution Channel List Channel Id", HFILL}
},
{&hf_docsis_mdd_upstream_frequency_range,
{"Upstream Frequency Range", "docsis_mdd.upstream_frequency_range",
FT_UINT8, BASE_DEC, VALS(upstream_frequency_range_vals), 0x0,
"Mdd Upstream Frequency Range", HFILL}
},
{&hf_docsis_mdd_symbol_clock_locking_indicator,
{"Symbol Clock Locking Indicator", "docsis_mdd.symbol_clock_locking_indicator",
FT_UINT8, BASE_DEC, VALS(symbol_clock_locking_indicator_vals), 0x0,
"Mdd Symbol Clock Locking Indicator", HFILL}
},
{&hf_docsis_mdd_event_type,
{"Event Type", "docsis_mdd.event_type",
FT_UINT8, BASE_DEC, VALS(symbol_cm_status_event_vals), 0x0,
"Mdd CM-STATUS Event Type", HFILL}
},
{&hf_docsis_mdd_maximum_event_holdoff_timer,
{"Maximum Event Holdoff Timer (units of 20 ms)", "docsis_mdd.maximum_event_holdoff_timer",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Mdd Maximum Event Holdoff Timer", HFILL}
},
{&hf_docsis_mdd_maximum_number_of_reports_per_event,
{"Maximum Number of Reports per Event", "docsis_mdd.maximum_number_of_reports_per_event",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Mdd Maximum Number of Reports per Event", HFILL}
},
{&hf_docsis_mdd_upstream_transmit_power_reporting,
{"Upstream Transmit Power Reporting", "docsis_mdd.upstream_transmit_power_reporting",
FT_UINT8, BASE_DEC, VALS(upstream_transmit_power_reporting_vals), 0x0,
"Mdd Upstream Transmit Power Reporting", HFILL}
},
{&hf_docsis_mdd_dsg_da_to_dsid_association_da,
{"Destination Address", "docsis_mdd.dsg_da_to_dsid_association_da",
FT_ETHER, BASE_NONE, NULL, 0x0,
"Mdd DSG DA to DSID association Destination Address", HFILL}
},
{&hf_docsis_mdd_dsg_da_to_dsid_association_dsid,
{"DSID", "docsis_mdd.dsg_da_to_dsid_association_dsid",
FT_UINT24, BASE_DEC, NULL, 0x0FFFFF,
"Mdd Mdd DSG DA to DSID association DSID", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_sequence_out_of_range,
{"Sequence out of range", "docsis_mdd.cm_status_event_enable_non_channel_specific_events_sequence_out_of_range",
FT_UINT16, BASE_DEC, NULL, 0x0008,
"CM-STATUS event non-channel-event Sequence out of range", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_cm_operating_on_battery_backup,
{"CM operating on battery backup", "docsis_mdd.cm_status_event_enable_non_channel_specific_events_cm_operating_on_battery_backup",
FT_UINT16, BASE_DEC, NULL, 0x0200,
"CM-STATUS event non-channel-event Cm operating on battery backup", HFILL}
},
{&hf_docsis_mdd_cm_status_event_enable_non_channel_specific_events_cm_returned_to_ac_power,
{"Returned to AC power", "docsis_mdd.cm_status_event_enable_non_channel_specific_events_cm_returned_to_ac_power",
FT_UINT16, BASE_DEC, NULL, 0x0400,
"CM-STATUS event non-channel-event Cm returned to AC power", HFILL}
},
{&hf_docsis_mdd_extended_upstream_transmit_power_support,
{ "Extended Upstream Transmit Power Support", "docsis_mdd.extended_upstream_transmit_power_support",
FT_BOOLEAN, BASE_NONE, TFS(&mdd_tfs_on_off), 0x0,
"Mdd Extended Upstream Transmit Power Support", HFILL}
},
};
static gint *ett[] = {
&ett_docsis_mdd,
&ett_tlv,
&ett_sub_tlv
};
proto_docsis_mdd =
proto_register_protocol ("DOCSIS Mac Domain Description",
"DOCSIS Mdd", "docsis_mdd");
proto_register_field_array (proto_docsis_mdd, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
register_dissector ("docsis_mdd", dissect_mdd, proto_docsis_mdd);
}
void
proto_reg_handoff_docsis_mdd (void)
{
dissector_handle_t docsis_mdd_handle;
docsis_mdd_handle = find_dissector ("docsis_mdd");
dissector_add_uint ("docsis_mgmt", 33, docsis_mdd_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/