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wireshark/epan/dissectors/packet-v52.c

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/* packet-v52.c
* Implementation for V5.2 Interface dissection
* References:
* ETSI EN 300 324-1 V2.1.1 (2000-04)
* ETSI EN 300 347-1 V2.2.2 (1999-12)
*
* Copyright 2009
*
* ISKRATEL d.o.o. | 4S d.o.o.
* http://www.iskratel.si/ | http://www.4es.si/
* <info@iskratel.si> | <projects@4es.si>
* Vladimir Smrekar <vladimir.smrekar@gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
void proto_register_v52(void);
static int proto_v52 = -1;
static int hf_v52_discriminator = -1;
static gint ett_v52 = -1;
static gint ett_v52_info = -1;
/* static int hf_v52_address = -1; */
/* static int hf_v52_low_address = -1; */
static int hf_v52_msg_type = -1;
static int hf_v52_info_element = -1;
static int hf_v52_isdn_address = -1;
static int hf_v52_isdn_low_address = -1;
static int hf_v52_pstn_address = -1;
static int hf_v52_pstn_low_address = -1;
static int hf_v52_link_address = -1;
static int hf_v52_link_low_address = -1;
static int hf_v52_bcc_address = -1;
static int hf_v52_bcc_low_address = -1;
static int hf_v52_prot_address = -1;
static int hf_v52_prot_low_address = -1;
/* static int hf_v52_ctrl_address = -1; */
/* static int hf_v52_ctrl_low_address = -1; */
static int hf_v52_cadenced_ring = -1;
static int hf_v52_pulse_notification = -1;
static int hf_v52_info_length = -1;
/*PSTN Message*/
static int hf_v52_line_info = -1;
static int hf_v52_pulse_type = -1;
static int hf_v52_suppression_indicator = -1;
static int hf_v52_pulse_duration = -1;
static int hf_v52_ack_request_indicator = -1;
static int hf_v52_number_of_pulses = -1;
static int hf_v52_steady_signal = -1;
static int hf_v52_auto_signalling_sequence = -1;
static int hf_v52_sequence_response = -1;
static int hf_v52_digit_ack = -1;
static int hf_v52_digit_spare = -1;
static int hf_v52_digit_info = -1;
static int hf_v52_res_unavailable = -1;
static int hf_v52_state = -1;
static int hf_v52_cause_type = -1;
static int hf_v52_pstn_sequence_number = -1;
static int hf_v52_duration_type = -1;
/*Link control*/
static int hf_v52_link_control_function = -1;
/*Protection protocol*/
static int hf_v52_rejection_cause = -1;
static int hf_v52_error_cause = -1;
static int hf_v52_diagnostic_msg = -1;
static int hf_v52_diagnostic_element = -1;
/*BCC protocol*/
static int hf_v52_pstn_user_port_id = -1;
static int hf_v52_pstn_user_port_id_lower = -1;
static int hf_v52_isdn_user_port_id = -1;
static int hf_v52_isdn_user_port_id_lower = -1;
static int hf_v52_isdn_user_port_ts_num = -1;
static int hf_v52_override = -1;
static int hf_v52_reject_cause_type = -1;
static int hf_v52_bcc_protocol_error_cause = -1;
static int hf_v52_connection_incomplete_reason = -1;
static int hf_v52_diagnostic_message = -1;
static int hf_v52_diagnostic_information = -1;
/*Control protocol*/
static int hf_v52_control_function_element = -1;
static int hf_v52_control_function_id = -1;
static int hf_v52_variant = -1;
static int hf_v52_if_up_id = -1;
static int hf_v52_if_id = -1;
static int hf_v52_if_low_id = -1;
static int hf_v52_if_all_id = -1;
static int hf_v52_performance_grading = -1;
static int hf_v52_cp_rejection_cause = -1;
static int hf_v52_v5_link_id = -1;
static int hf_v52_v5_time_slot = -1;
static int hf_v52_sequence_number = -1;
static int hf_v52_v5_multi_slot_elements = -1;
static int message_type_tmp = -1;
static void
dissect_v52_protocol_discriminator(tvbuff_t *tvb, int offset, proto_tree *tree)
{
unsigned int discriminator = tvb_get_guint8(tvb, offset);
if (discriminator == 0x48) {
proto_tree_add_uint_format_value(tree, hf_v52_discriminator, tvb, offset, 1, discriminator,
"V5.2 (0x%02X)",
discriminator);
} else {
proto_tree_add_uint_format_value(tree, hf_v52_discriminator,
tvb, offset, 1, discriminator,
"Reserved (0x%02X)",
discriminator);
}
}
/*============================*/
/* V52 MESSAGE TYPE START */
/*============================*/
/* message types of PSTN */
#define ESTABLISH 0x00
#define ESTABLISH_ACK 0x01
#define SIGNAL 0x02
#define SIGNAL_ACK 0x03
#define DISCONNECT 0x08
#define DISCONNECT_COMPLETE 0x09
#define STATUS_ENQUIRY 0x0c
#define STATUS 0x0d
#define PROTOCOL_PARAMETER 0x0e
/* message types of Control protocol */
#define PORT_CONTROL 0x10
#define PORT_CONTROL_ACK 0x11
#define COMMON_CONTROL 0x12
#define COMMON_CONTROL_ACK 0x13
/* message types of PROT protocol */
#define SWITCH_OVER_REQ 0x18
#define SWITCH_OVER_COM 0x19
#define OS_SWITCH_OVER_COM 0x1a
#define SWITCH_OVER_ACK 0x1b
#define SWITCH_OVER_REJECT 0x1c
#define PROT_PROTOCOL_ERROR 0x1d
#define RESET_SN_COM 0x1e
#define RESET_SN_ACK 0x1f
/* message types of BCC */
#define ALLOCATION 0x20
#define ALLOCATION_COMPLETE 0x21
#define ALLOCATION_REJECT 0x22
#define DE_ALLOCATION 0x23
#define DE_ALLOCATION_COMPLETE 0x24
#define DE_ALLOCATION_REJECT 0x25
#define AUDIT 0x26
#define AUDIT_COMPLETE 0x27
#define AN_FAULT 0x28
#define AN_FAULT_ACKNOWLEDGE 0x29
#define BCC_PROTOCOL_ERROR 0x2a
/* message types of Link Control protocol */
#define LINK_CONTROL 0x30
#define LINK_CONTROL_ACK 0x31
static const value_string msg_type_values [] = {
{ ESTABLISH, "Establish" },
{ ESTABLISH_ACK, "Establish Ack" },
{ SIGNAL, "Signal" },
{ SIGNAL_ACK, "Signal Ack" },
{ DISCONNECT, "Disconnect" },
{ DISCONNECT_COMPLETE, "Disconnect Complete" },
{ STATUS_ENQUIRY, "Status Enquiry" },
{ STATUS, "Status" },
{ PROTOCOL_PARAMETER, "Protocol Parameter" },
{ PORT_CONTROL, "Port Control" },
{ PORT_CONTROL_ACK, "Port Control Ack" },
{ COMMON_CONTROL, "Common Control" },
{ COMMON_CONTROL_ACK, "Common Control Ack" },
{ SWITCH_OVER_REQ, "Switch-Over Request" },
{ SWITCH_OVER_COM, "Switch-Over Com" },
{ OS_SWITCH_OVER_COM, "OS-Switch-Over Com" },
{ SWITCH_OVER_ACK, "Switch-Over Ack" },
{ SWITCH_OVER_REJECT, "Switch-Over Reject" },
{ PROT_PROTOCOL_ERROR, "Protocol Error" },
{ RESET_SN_COM, "Reset SN Com" },
{ RESET_SN_ACK, "Reset SN Ack" },
{ ALLOCATION, "Allocation" },
{ ALLOCATION_COMPLETE, "Allocation Complete" },
{ ALLOCATION_REJECT, "Allocation Reject" },
{ DE_ALLOCATION, "DE Allocation" },
{ DE_ALLOCATION_COMPLETE, "DE Allocation Complete" },
{ DE_ALLOCATION_REJECT, "DE Allocation Reject" },
{ AUDIT, "Audit" },
{ AUDIT_COMPLETE, "Audit Complete" },
{ AN_FAULT, "AN Fault" },
{ AN_FAULT_ACKNOWLEDGE, "AN Fault Ack" },
{ BCC_PROTOCOL_ERROR, "Protocol Error" },
{ LINK_CONTROL, "Link Control" },
{ LINK_CONTROL_ACK, "Link Control Ack" },
{ 0, NULL } };
static value_string_ext msg_type_values_ext = VALUE_STRING_EXT_INIT(msg_type_values);
/* SHORT */
static const value_string msg_type_values_short [] = {
{ ESTABLISH, "Establish" },
{ ESTABLISH_ACK, "Establish Ack" },
{ SIGNAL, "Signal" },
{ SIGNAL_ACK, "Signal Ack" },
{ DISCONNECT, "Disconnect" },
{ DISCONNECT_COMPLETE, "Disconnect Com" },
{ STATUS_ENQUIRY, "Status Enq" },
{ STATUS, "Status" },
{ PROTOCOL_PARAMETER, "Prot Para" },
{ PORT_CONTROL, "PortCtrl" },
{ PORT_CONTROL_ACK, "PortCtrl Ack" },
{ COMMON_CONTROL, "CCtrl" },
{ COMMON_CONTROL_ACK, "CCtrl Ack" },
{ SWITCH_OVER_REQ, "SO Req" },
{ SWITCH_OVER_COM, "SO Com" },
{ OS_SWITCH_OVER_COM, "OS SO Com" },
{ SWITCH_OVER_ACK, "SO Ack" },
{ SWITCH_OVER_REJECT, "SO Rej" },
{ PROT_PROTOCOL_ERROR, "Prot Err" },
{ RESET_SN_COM, "Res SN Com" },
{ RESET_SN_ACK, "Res SN Ack" },
{ ALLOCATION, "BCC Alloc" },
{ ALLOCATION_COMPLETE, "BCC Alloc Comp" },
{ ALLOCATION_REJECT, "BCC Allo Rej" },
{ DE_ALLOCATION, "BCC DE-Alloc" },
{ DE_ALLOCATION_COMPLETE, "BCC DE-Alloc Comp" },
{ DE_ALLOCATION_REJECT, "BCC DE-Alloc Rej" },
{ AUDIT, "BCC Audit" },
{ AUDIT_COMPLETE, "BCC Audit Comp" },
{ AN_FAULT, "BCC AN Fault" },
{ AN_FAULT_ACKNOWLEDGE, "BCC AN Fault Ack" },
{ BCC_PROTOCOL_ERROR, "BCC Prot Error" },
{ LINK_CONTROL, "LinkCtrl" },
{ LINK_CONTROL_ACK, "LinkCtrl Ack" },
{ 0, NULL } };
static value_string_ext msg_type_values_short_ext = VALUE_STRING_EXT_INIT(msg_type_values_short);
static const value_string pulse_type_values [] = {
{ 0xeb, "Pulsed b-wire disconnected" },
{ 0xec, "Pulsed a-wire disconnected" },
{ 0xed, "Pulsed normal battery" },
{ 0xee, "Pulsed c-wire disconnected" },
{ 0xef, "Pulsed c-wire connected to earth" },
{ 0xf0, "Pulsed a-wire connected to battery" },
{ 0xf1, "Pulsed a-wire connected to earth" },
{ 0xf2, "Pulsed b-wire connected to battery" },
{ 0xf3, "Earth loop pulse" },
{ 0xf4, "Pulsed b-wire connected to earth" },
{ 0xf5, "Pulsed off hook (pulsed loop closed)" },
{ 0xf6, "Register recall (timed loop open)" },
{ 0xf7, "50 Hz pulse" },
{ 0xf8, "Meter pulse" },
{ 0xf9, "Initial ring" },
{ 0xfa, "Pulsed no battery" },
{ 0xfb, "Pulsed reduced battery" },
{ 0xfc, "Pulsed on hook" },
{ 0xfd, "Pulsed battery on c-wire" },
{ 0xfe, "Pulsed reversed polarity" },
{ 0xff, "Pulsed normal polarity" },
{ 0, NULL } };
static value_string_ext pulse_type_values_ext = VALUE_STRING_EXT_INIT(pulse_type_values);
static const value_string suppression_indication_values [] = {
{ 0x0, "No suppression" },
{ 0x1, "Suppression allowed by pre-defined V5.1 SIGNAL msg from LE" },
{ 0x2, "Suppression allowed by pre-defined line signal from TE" },
{ 0x3, "Suppression allowed by pre-defined V5.1 SIGNAL msg from LE or line signal from TE" },
{ 0, NULL } };
static const value_string ack_request_indication_values [] = {
{ 0x0, "No acknowledgement requested" },
{ 0x1, "Ending acknowledgement requested when finished each pulses" },
{ 0x2, "Ending acknowledgement requested when finished all pulses" },
{ 0x3, "Start of pulse acknowledgement requested" },
{ 0, NULL } };
static const value_string steady_signal_values [] = {
{ 0x00, "Normal polarity" },
{ 0x01, "Reversed polarity" },
{ 0x02, "Battery on c-wire" },
{ 0x03, "No battery on c-wire" },
{ 0x04, "Off hook (loop closed)" },
{ 0x05, "On hook (loop open)" },
{ 0x06, "Battery on a-wire" },
{ 0x07, "A-wire on earth" },
{ 0x08, "No battery on a-wire" },
{ 0x09, "No battery on b-wire" },
{ 0x0a, "Reduced battery" },
{ 0x0b, "No battery" },
{ 0x0c, "Alternate reduced power / no power" },
{ 0x0d, "Normal battery" },
{ 0x0e, "Stop ringing" },
{ 0x0f, "Start pilot frequency" },
{ 0x10, "Stop pilot frequency" },
{ 0x11, "Low impedance on b-wire" },
{ 0x12, "B-wire connected to earth" },
{ 0x13, "B-wire disconnected from earth" },
{ 0x14, "Battery on b-wire" },
{ 0x15, "Low loop impedance" },
{ 0x16, "High loop impedance" },
{ 0x17, "Anomalous loop impedance" },
{ 0x18, "A-wire disconnected from earth" },
{ 0x19, "C-wire on earth" },
{ 0x1a, "C-wire disconnected from earth" },
{ 0x1d, "Ramp to reverse polarity" },
{ 0x1e, "Ramp to normal polarity" },
{ 0, NULL } };
static value_string_ext steady_signal_values_ext = VALUE_STRING_EXT_INIT(steady_signal_values);
static const true_false_string tfs_digit_ack_values = {
"Ending acknowledgement requested when digit transmission is finished",
"No ending acknowledgement requested" };
static const value_string line_info_values [] = {
{ 0x00, "Impedance marker reset" },
{ 0x01, "Impedance marker set" },
{ 0x02, "Low loop impedance" },
{ 0x03, "Anomalous loop impedance" },
{ 0x04, "Anomalous line condition received"},
{ 0, NULL } };
static const value_string state_values [] = {
{ 0x00, "AN0" },
{ 0x01, "AN1" },
{ 0x02, "AN2" },
{ 0x03, "AN3" },
{ 0x04, "AN4" },
{ 0x05, "AN5" },
{ 0x06, "AN6" },
{ 0x07, "AN7" },
{ 0x0f, "Not applicable" },
{ 0, NULL } };
static const value_string control_function_element_values [] = {
{ 0x01, "FE101 (activate access)" },
{ 0x02, "FE102 (activation initiated by user)" },
{ 0x03, "FE103 (DS activated)" },
{ 0x04, "FE104 (access activated)" },
{ 0x05, "FE105 (deactivate access)" },
{ 0x06, "FE106 (access deactivated)" },
{ 0x11, "FE201/202 (unblock)" },
{ 0x13, "FE203/204 (block)" },
{ 0x15, "FE205 (block request)" },
{ 0x16, "FE206 (performance grading)" },
{ 0x17, "FE207 (D-channel block)" },
{ 0x18, "FE208 (D-channel unblock)" },
{ 0x19, "FE209 (TE out of service)" },
{ 0x1A, "FE210 (failure inside network)" },
{ 0, NULL } };
static const value_string control_function_id_values [] = {
{ 0x00, "Verify re-provisioning" },
{ 0x01, "Ready for re-provisioning" },
{ 0x02, "Not ready for re-provisioning" },
{ 0x03, "Switch-over to new variant" },
{ 0x04, "Re-provisioning started" },
{ 0x05, "Cannot re-provision" },
{ 0x06, "Request variant and interface ID" },
{ 0x07, "Variant and interface ID" },
{ 0x08, "Blocking started" },
{ 0x10, "Restart request" },
{ 0x11, "Restart complete" },
{ 0x12, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS REQUEST" },
{ 0x13, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS ACCEPTED" },
{ 0x14, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS REJECTED" },
{ 0x15, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS COMPLETED" },
{ 0x16, "UNBLOCK ALL RELEVANT PSTN PORTS REQUEST" },
{ 0x17, "UNBLOCK ALL RELEVANT PSTN PORTS ACCEPTED" },
{ 0x18, "UNBLOCK ALL RELEVANT PSTN PORTS REJECTED" },
{ 0x19, "UNBLOCK ALL RELEVANT PSTN PORTS COMPLETED" },
{ 0x1a, "UNBLOCK ALL RELEVANT ISDN PORTS REQUEST" },
{ 0x1b, "UNBLOCK ALL RELEVANT ISDN PORTS ACCEPTED" },
{ 0x1c, "UNBLOCK ALL RELEVANT ISDN PORTS REJECTED" },
{ 0x1d, "UNBLOCK ALL RELEVANT ISDN PORTS COMPLETED" },
{ 0x1e, "BLOCK ALL PSTN PORTS REQUEST" },
{ 0x1f, "BLOCK ALL PSTN PORTS ACCEPTED" },
{ 0x20, "BLOCK ALL PSTN PORTS REJECTED" },
{ 0x21, "BLOCK ALL PSTN PORTS COMPLETED" },
{ 0x22, "BLOCK ALL ISDN PORTS REQUEST" },
{ 0x23, "BLOCK ALL ISDN PORTS ACCEPTED" },
{ 0x24, "BLOCK ALL ISDN PORTS REJECTED" },
{ 0x25, "BLOCK ALL ISDN PORTS COMPLETED" },
{ 0, NULL } };
static value_string_ext control_function_id_values_ext = VALUE_STRING_EXT_INIT(control_function_id_values);
static const value_string control_function_id_values_short [] = {
{ 0x00, "VerifyRe-pro" },
{ 0x01, "ReadyForRe-pro" },
{ 0x02, "NotReadyForRe-pro" },
{ 0x03, "SO ToNewVar" },
{ 0x04, "Re-pro Started" },
{ 0x05, "CannotRe-pro" },
{ 0x06, "ReqVar & intf ID" },
{ 0x07, "Var & intf ID" },
{ 0x08, "BlockStarted" },
{ 0x10, "RestartReq" },
{ 0x11, "RestartCompl" },
{ 0x12, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS REQUEST" },
{ 0x13, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS ACCEPTED" },
{ 0x14, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS REJECTED" },
{ 0x15, "UNBLOCK ALL RELEVANT PSTN AND ISDN PORTS COMPLETED" },
{ 0x16, "UNBLOCK ALL RELEVANT PSTN PORTS REQUEST" },
{ 0x17, "UNBLOCK ALL RELEVANT PSTN PORTS ACCEPTED" },
{ 0x18, "UNBLOCK ALL RELEVANT PSTN PORTS REJECTED" },
{ 0x19, "UNBLOCK ALL RELEVANT PSTN PORTS COMPLETED" },
{ 0x1a, "UNBLOCK ALL RELEVANT ISDN PORTS REQUEST" },
{ 0x1b, "UNBLOCK ALL RELEVANT ISDN PORTS ACCEPTED" },
{ 0x1c, "UNBLOCK ALL RELEVANT ISDN PORTS REJECTED" },
{ 0x1d, "UNBLOCK ALL RELEVANT ISDN PORTS COMPLETED" },
{ 0x1e, "BLOCK ALL PSTN PORTS REQUEST" },
{ 0x1f, "BLOCK ALL PSTN PORTS ACCEPTED" },
{ 0x20, "BLOCK ALL PSTN PORTS REJECTED" },
{ 0x21, "BLOCK ALL PSTN PORTS COMPLETED" },
{ 0x22, "BLOCK ALL ISDN PORTS REQUEST" },
{ 0x23, "BLOCK ALL ISDN PORTS ACCEPTED" },
{ 0x24, "BLOCK ALL ISDN PORTS REJECTED" },
{ 0x25, "BLOCK ALL ISDN PORTS COMPLETED" },
{ 0, NULL } };
static value_string_ext control_function_id_values_short_ext = VALUE_STRING_EXT_INIT(control_function_id_values_short);
static const value_string rejection_cause_values [] = {
{ 0x00, "No standby C-channel available" },
{ 0x01, "Target physical C-channel not operational" },
{ 0x02, "Target physical C-channel not provisioned" },
{ 0x03, "Protection switching impossible (AN/LE failure)" },
{ 0x04, "Protection group mismatch" },
{ 0x05, "Requested allocation exists already" },
{ 0x06, "Target physical C-channel already has logical C-channel" },
{ 0, NULL } };
static const value_string error_cause_values [] = {
{ 0x01, "Protocol discriminator error" },
{ 0x04, "Message type unrecognized" },
{ 0x07, "Mandatory information element missing" },
{ 0x08, "Unrecognized information element" },
{ 0x09, "Mandatory information element content error" },
{ 0x0b, "Message not compatible with protection protocol state" },
{ 0x0c, "Repeated mandatory information element" },
{ 0x0d, "Too many information elements" },
{ 0x0f, "Logical C-Channel identification error" },
{ 0, NULL } };
static const value_string performance_grading_values [] = {
{ 0x00, "normal grade" },
{ 0x01, "degraded" },
{ 0, NULL } };
static const value_string cp_rejection_cause_values [] = {
{ 0x00, "variant unknown" },
{ 0x01, "variant known, not ready" },
{ 0x02, "re-provisioning in progress (re-pro)" },
{ 0, NULL } };
static const value_string reject_cause_type_values [] = {
{ 0x00, "Unspecified" },
{ 0x01, "Access network fault" },
{ 0x02, "Access network blocked (internally)" },
{ 0x03, "Connection already present at the PSTN user port to a different V5 time slot" },
{ 0x04, "Connection already present at the V5 time slot(s) to a different port or ISDN user port time slot(s)" },
{ 0x05, "Connection already present at the ISDN user port time slot(s) to a different V5 time slot(s)" },
{ 0x06, "User port unavailable (blocked)" },
{ 0x07, "De-allocation cannot be completed due to incompatible data content" },
{ 0x08, "De-allocation cannot be completed due to V5 time slot(s) data incompatibility" },
{ 0x09, "De-allocation cannot be completed due to port data incompatibility" },
{ 0x0a, "De-allocation cannot be completed due to user port time slot(s) data incompatibility" },
{ 0x0b, "User port not provisioned" },
{ 0x0c, "Invalid V5 time slot(s) indication(s)" },
{ 0x0d, "Invalid V5 2048 kbit/s link indication" },
{ 0x0e, "Invalid user time slot(s) indication(s)" },
{ 0x0f, "V5 time slot(s) being used as physical C-channel(s)" },
{ 0x10, "V5 link unavailable (blocked)" },
{ 0, NULL } };
static const value_string bcc_protocol_error_cause_type_values [] = {
{ 0x01, "Protocol discriminator error" },
{ 0x04, "Message type unrecognized" },
{ 0x05, "Out of sequence information element" },
{ 0x06, "Repeated optional information element" },
{ 0x07, "Mandatory information element missing" },
{ 0x08, "Unrecognized information element" },
{ 0x09, "Mandatory information element content error" },
{ 0x0a, "Optional information element content error" },
{ 0x0b, "Message not compatible with the BCC protocol state" },
{ 0x0c, "Repeated mandatory information element" },
{ 0x0d, "Too many information element" },
{ 0x0f, "BCC Reference Number coding error" },
{ 0, NULL } };
static const value_string connection_incomplete_reason_values [] = {
{ 0x00, "Incomplete normal" },
{ 0x01, "Access network fault" },
{ 0x02, "User port not provisioned" },
{ 0x03, "Invalid V5 time slot identification" },
{ 0x04, "Invalid V5 2048 kbit/s link identification" },
{ 0x05, "Time slot being used as physical C-channel" },
{ 0, NULL } };
static const value_string link_control_function_values [] = {
{ 0x00, "FE-IDReq" },
{ 0x01, "FE-IDAck" },
{ 0x02, "FE-IDRel" },
{ 0x03, "FE-IDRej" },
{ 0x04, "FE301/302 (link unblock)" },
{ 0x05, "FE303/304 (link block)" },
{ 0x06, "FE305 (deferred link block request" },
{ 0x07, "FE306 (non-deferred link block request)" },
{ 0, NULL } };
static const value_string cause_type_values [] = {
{ 0x00, "Response to STATUS ENQUIRY" },
{ 0x01, "Not used" },
{ 0x03, "L3 address error" },
{ 0x04, "Message type unrecognized" },
{ 0x05, "Out of sequence information element" },
{ 0x06, "Repeated optional information element" },
{ 0x07, "Mandatory information element missing" },
{ 0x08, "Unrecognized information element" },
{ 0x09, "Mandatory information element content error" },
{ 0x0a, "Optional information element content error" },
{ 0x0b, "Message not compatible with path state" },
{ 0x0c, "Repeated mandatory information element" },
{ 0x0d, "Too many information elements" },
{ 0, NULL } };
/* protocol message info elements */
#define PSTN_SEQUENCE_NUMBER 0x00 /* PSTN */
#define CADENCED_RINGING 0x01 /* PSTN */
#define PULSED_SIGNAL 0x02 /* PSTN */
#define STEADY_SIGNAL 0x03 /* PSTN */
#define DIGIT_SIGNAL 0x04 /* PSTN */
#define RECOGNITION_TIME 0x10 /* PSTN */
#define ENABLE_AUTO_ACK 0x11 /* PSTN */
#define DISABLE_AUTO_ACK 0x12 /* PSTN */
#define CAUSE 0x13 /* PSTN */
#define RESOURCE_UNAVAILABLE 0x14 /* PSTN */
#define CONTROL_FUNCTION_ELEMENT 0x20 /* Control */
#define CONTROL_FUNCTION_ID 0x21 /* Control */
#define ENABLE_METERING 0x22 /* PSTN */
#define VARIANT 0x22 /* Control */
#define METERING_REPORT 0x23 /* PSTN */
#define INTERFACE_ID 0x23 /* Control */
#define ATTENUATION 0x24 /* PSTN */
#define LINK_CONTROL_FUNCTION 0x30 /* Link Control */
#define USER_PORT_ID 0x40 /* BCC */
#define ISDN_PORT_TS_ID 0x41 /* BCC */
#define V5_TIME_SLOT_ID 0x42 /* BCC */
#define MULTI_SLOT_MAP 0x43 /* BCC */
#define BCC_REJECT_CAUSE 0x44 /* BCC */
#define BCC_PROTOCOL_ERROR_CAUSE 0x45 /* BCC */
#define CONNECTION_INCOMPLETE 0x46 /* BCC */
#define SEQUENCE_NUMBER 0x50 /* Protection */
#define C_CHANNEL_ID 0x51 /* Protection */
#define PP_REJECTION_CAUSE 0x52 /* Protection */
#define PROTOCOL_ERROR 0x53 /* Protection */
#define LINE_INFORMATION 0x80 /* PSTN */
#define STATE 0x90 /* PSTN */
#define AUTO_SIG_SEQUENCE 0xa0 /* PSTN */
#define SEQUENCE_RESPONSE 0xb0 /* PSTN */
#define PULSE_NOTIFICATION 0xc0 /* PSTN */
#define PERFORMANCE_GRADING 0xe0 /* Control */
#define CP_REJECTION_CAUSE 0xf0 /* Control */
static const value_string info_element_values [] = {
{ PSTN_SEQUENCE_NUMBER, "Sequence number" },
{ CADENCED_RINGING, "Cadenced ringing" },
{ PULSED_SIGNAL, "Pulsed signal" },
{ STEADY_SIGNAL, "Steady signal" },
{ DIGIT_SIGNAL, "Digit signal" },
{ RECOGNITION_TIME, "Recognition time" },
{ ENABLE_AUTO_ACK, "Enable autonomous acknowledge" },
{ DISABLE_AUTO_ACK, "Disable autonomous acknowledge" },
{ CAUSE, "Cause" },
{ RESOURCE_UNAVAILABLE, "Resource unavailable" },
{ CONTROL_FUNCTION_ELEMENT, "Control function element" },
{ CONTROL_FUNCTION_ID, "Control function ID" },
{ ENABLE_METERING, "Enable metering" },
/* { VARIANT, "Variant" }, XXX - Duplicate value of ENABLE_METERING */
{ METERING_REPORT, "Metering report" },
/* { INTERFACE_ID, "Interface ID" }, XXX - Duplicate value of METERING_REPORT */
{ ATTENUATION, "Attenuation" },
{ LINK_CONTROL_FUNCTION, "Link control function" },
{ USER_PORT_ID, "User port ID" },
{ ISDN_PORT_TS_ID, "ISDN port TS ID" },
{ V5_TIME_SLOT_ID, "V5 TS ID" },
{ MULTI_SLOT_MAP, "Multi-Slot map" },
{ BCC_REJECT_CAUSE, "Reject cause" },
{ BCC_PROTOCOL_ERROR_CAUSE, "Protocol error cause" },
{ CONNECTION_INCOMPLETE, "Connection incomplete" },
{ SEQUENCE_NUMBER, "Sequence number" },
{ C_CHANNEL_ID, "Physical C-Channel ID" },
{ PP_REJECTION_CAUSE, "Rejection cause" },
{ PROTOCOL_ERROR, "Protocol error cause" },
{ LINE_INFORMATION, "Line information" },
{ STATE, "State" },
{ AUTO_SIG_SEQUENCE, "Autonomous signal sequence" },
{ SEQUENCE_RESPONSE, "Sequence response" },
{ PULSE_NOTIFICATION, "Pulse notification" },
{ PERFORMANCE_GRADING, "Performance grading" },
{ CP_REJECTION_CAUSE, "Rejection cause" },
{ 0, NULL } };
static value_string_ext info_element_values_ext = VALUE_STRING_EXT_INIT(info_element_values);
static const value_string info_element_values_short [] = {
{ PSTN_SEQUENCE_NUMBER, "SN" },
{ CADENCED_RINGING, "CR" },
{ PULSED_SIGNAL, "PS" },
{ STEADY_SIGNAL, "SS" },
{ DIGIT_SIGNAL, "DS" },
{ RECOGNITION_TIME, "RT" },
{ ENABLE_AUTO_ACK, "EAA" },
{ DISABLE_AUTO_ACK, "DAA" },
{ CAUSE, "CA" },
{ RESOURCE_UNAVAILABLE, "RU" },
{ CONTROL_FUNCTION_ELEMENT, "CF element" },
{ CONTROL_FUNCTION_ID, "CF ID" },
{ ENABLE_METERING, "EM" },
{ VARIANT, "Var" },
{ METERING_REPORT, "MR" },
{ INTERFACE_ID, "Interface ID" },
{ ATTENUATION, "ATT" },
{ LINK_CONTROL_FUNCTION, "LC F" },
{ USER_PORT_ID, "UP ID" },
{ ISDN_PORT_TS_ID, "ISDNP TS ID" },
{ V5_TIME_SLOT_ID, "V5 TS ID" },
{ MULTI_SLOT_MAP, "MS map" },
{ BCC_REJECT_CAUSE, "RC" },
{ BCC_PROTOCOL_ERROR_CAUSE, "PEC" },
{ CONNECTION_INCOMPLETE, "CI" },
{ SEQUENCE_NUMBER, "SN" },
{ C_CHANNEL_ID, "Phy CChannel ID" },
{ PP_REJECTION_CAUSE, "RC" },
{ PROTOCOL_ERROR, "PEC" },
{ LINE_INFORMATION, "LI" },
{ STATE, "ST" },
{ AUTO_SIG_SEQUENCE, "ASS" },
{ SEQUENCE_RESPONSE, "SR" },
{ PULSE_NOTIFICATION, "PN" },
{ PERFORMANCE_GRADING, "PG" },
{ CP_REJECTION_CAUSE, "RC" },
{ 0, NULL } };
static value_string_ext info_element_values_short_ext = VALUE_STRING_EXT_INIT(info_element_values_short);
#define ADDRESS_OFFSET 1
#define ADDRESS_LENGTH 1
#define LOW_ADDRESS_OFFSET 2
#define LOW_ADDRESS_LENGTH 1
#define MSG_TYPE_OFFSET 3
#define MSG_TYPE_LENGTH 1
#define INFO_ELEMENT_OFFSET 4
#define INFO_ELEMENT_LENGTH 1
static void
dissect_pstn_sequence_number(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 pstn_sequence_number_tmp;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
pstn_sequence_number_tmp = tvb_get_guint8(info_tvb, info_offset+2)-0x80;
col_append_fstr(pinfo->cinfo, COL_INFO, " | SN: %u", pstn_sequence_number_tmp);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_pstn_sequence_number, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_cadenced_ring(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 cadenced_ring_tmp;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
cadenced_ring_tmp = tvb_get_guint8(info_tvb, info_offset+2)-0x80;
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
col_append_fstr(pinfo->cinfo, COL_INFO, ": %u", cadenced_ring_tmp);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_cadenced_ring, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_pulsed_signal(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
col_append_str(pinfo->cinfo, COL_INFO, ": ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset+2), &pulse_type_values_ext, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_pulse_type, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
if (data_length > 3) {
proto_tree_add_item(info_tree, hf_v52_suppression_indicator, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_pulse_duration, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
}
if (data_length > 4) {
proto_tree_add_item(info_tree, hf_v52_ack_request_indicator, info_tvb, info_offset+4, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_number_of_pulses, info_tvb, info_offset+4, 1, ENC_BIG_ENDIAN);
}
}
}
static void
dissect_steady_signal(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
col_append_str(pinfo->cinfo, COL_INFO, ": ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, &steady_signal_values_ext, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_steady_signal, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
}
}
static void
dissect_digit_signal(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 buffer;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_digit_ack, info_tvb, info_offset+2, 1, ENC_NA);
buffer = tvb_get_guint8(info_tvb, info_offset+2)>>4;
buffer = buffer&0x03;
proto_tree_add_item(info_tree, hf_v52_digit_spare, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_digit_info, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
col_append_fstr(pinfo->cinfo, COL_INFO, ": %u", buffer);
}
static void
dissect_recognition_time(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
guint8 buffer;
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
buffer = tvb_get_guint8(info_tvb, info_offset+2)&0x7f;
/*Signal = Coding of pulse type*/
if (buffer >= 0x6b)
proto_tree_add_item(info_tree, hf_v52_pulse_type, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
/*Signal = Coding of steady signal type*/
else if (buffer <= 0x1a)
proto_tree_add_item(info_tree, hf_v52_steady_signal, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_duration_type, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
}
}
static void
dissect_enable_auto_ack(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
guint8 buffer;
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
buffer = tvb_get_guint8(info_tvb, info_offset+2)&0x7f;
/*Signal*/
if (buffer >= 0x6b)
proto_tree_add_item(info_tree, hf_v52_pulse_type, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
else if (buffer <= 0x1a)
proto_tree_add_item(info_tree, hf_v52_steady_signal, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
buffer = tvb_get_guint8(info_tvb, info_offset+3)&0x7f;
/*Response*/
if (buffer >= 0x6b)
proto_tree_add_item(info_tree, hf_v52_pulse_type, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
else if (buffer <= 0x1a)
proto_tree_add_item(info_tree, hf_v52_steady_signal, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+4)) {
proto_tree_add_item(info_tree, hf_v52_suppression_indicator, info_tvb, info_offset+4, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_pulse_duration, info_tvb, info_offset+4, 1, ENC_BIG_ENDIAN);
}
if (tvb_reported_length_remaining(info_tvb, info_offset+5)) {
proto_tree_add_item(info_tree, hf_v52_ack_request_indicator, info_tvb, info_offset+5, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_number_of_pulses, info_tvb, info_offset+5, 1, ENC_BIG_ENDIAN);
}
}
}
static void
dissect_disable_auto_ack(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
guint8 buffer;
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
buffer = tvb_get_guint8(info_tvb, info_offset+2)&0x7f;
if (buffer >= 0x6b)
proto_tree_add_item(info_tree, hf_v52_pulse_type, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
else if (buffer <= 0x1a)
proto_tree_add_item(info_tree, hf_v52_steady_signal, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
}
}
static void
dissect_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
col_append_str(pinfo->cinfo, COL_INFO, ": ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, cause_type_values, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_cause_type, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+3))
proto_tree_add_uint_format(info_tree, hf_v52_msg_type, info_tvb, info_offset+3, 1, tvb_get_guint8(info_tvb, info_offset+3),
"Diagnostic: %s", val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset+3), &msg_type_values_ext, "unknown"));
}
}
static void
dissect_resource_unavailable(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_res_unavailable, info_tvb, info_offset+2, info_element_length, ENC_ASCII|ENC_NA);
}
}
static void
dissect_pulse_notification(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_pulse_notification, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_line_information(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_line_info, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_state(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_state, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_auto_sig_sequence(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_auto_signalling_sequence, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_sequence_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_sequence_response, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_control_function_element(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
if (message_type_tmp != 0x11) {
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, control_function_element_values, "Unknown element"));
}
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_control_function_element, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_control_function_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
if (message_type_tmp != 0x13) {
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, &control_function_id_values_short_ext, "Unknown layer3 element"));
}
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_control_function_id, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_variant(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 variantValue;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
variantValue = tvb_get_guint8(info_tvb, info_offset+2)-0x80;
col_append_fstr(pinfo->cinfo, COL_INFO, " | Var: %u", variantValue);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_variant, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_interface_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 interfaceAllIdValue;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
interfaceAllIdValue = (tvb_get_guint8(info_tvb, info_offset+2)<<16)+(tvb_get_guint8(info_tvb, info_offset+3)<<8)+(tvb_get_guint8(info_tvb, info_offset+4));
col_append_fstr(pinfo->cinfo, COL_INFO, " | Intf. ID: %u", interfaceAllIdValue);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_if_up_id, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_if_id, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_if_low_id, info_tvb, info_offset+4, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_if_all_id, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_sequence_number(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 hf_v52_sequence_number_tmp;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(info_tvb, info_offset), &info_element_values_short_ext, "Unknown element"));
hf_v52_sequence_number_tmp = tvb_get_guint8(info_tvb, info_offset+2)-0x80;
col_append_fstr(pinfo->cinfo, COL_INFO, ": %u", hf_v52_sequence_number_tmp);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_sequence_number, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_physical_c_channel_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_fstr(pinfo->cinfo, COL_INFO, " | Phy C-ch: %u, %u", tvb_get_guint8(info_tvb, info_offset+2), tvb_get_guint8(info_tvb, info_offset+3));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_v5_link_id, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_v5_time_slot, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_pp_rejection_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, rejection_cause_values, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_rejection_cause, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_protocol_error(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, error_cause_values, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_error_cause, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_diagnostic_msg, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_diagnostic_element, info_tvb, info_offset+4, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_performance_grading(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset)-0xe0, performance_grading_values, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_performance_grading, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_cp_rejection_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = 1;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset)-0xe0, cp_rejection_cause_values, "Unknown element"));
if (info_tree != NULL) {
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_cp_rejection_cause, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_user_port_identification(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 buffer;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
buffer = tvb_get_guint8(info_tvb, info_offset+2)&0x01;
if (buffer == 0x01) {
proto_tree_add_item(info_tree, hf_v52_pstn_user_port_id, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_pstn_user_port_id_lower, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | PSTN port: %u", (((tvb_get_guint8(info_tvb, info_offset+2)>>1)<<8)+(tvb_get_guint8(info_tvb, info_offset+3))));
}
else if (buffer == 0x00) {
proto_tree_add_item(info_tree, hf_v52_isdn_user_port_id, info_tvb, info_offset+2, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_isdn_user_port_id_lower, info_tvb, info_offset+3, 1, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | ISDN: %u", (((tvb_get_guint8(info_tvb, info_offset+2)>>2)<<7)+((tvb_get_guint8( info_tvb, info_offset+3)>>1))));
}
}
static void
dissect_isdn_port_time_slot_identification(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 isdn_user_port_ts_num_tmp;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
isdn_user_port_ts_num_tmp = (tvb_get_guint8(info_tvb, info_offset+2)) - 128;
col_append_str(pinfo->cinfo, COL_INFO, ", ");
col_append_fstr(pinfo->cinfo, COL_INFO, "%x", isdn_user_port_ts_num_tmp);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_isdn_user_port_ts_num, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_v5_time_slot_identification(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint8 v5_link_id_tmp;
guint8 v5_time_slot_tmp;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
v5_link_id_tmp = tvb_get_guint8(info_tvb, info_offset+2);
v5_time_slot_tmp = tvb_get_guint8(info_tvb, info_offset+3);
if (v5_time_slot_tmp >= 64) {
v5_time_slot_tmp = v5_time_slot_tmp - 64;
}
if (v5_time_slot_tmp >= 32) {
v5_time_slot_tmp = v5_time_slot_tmp - 32;
}
col_append_fstr(pinfo->cinfo, COL_INFO, " | V5 Link: %u, %u ", v5_link_id_tmp, v5_time_slot_tmp);
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_v5_link_id, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_override, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_v5_time_slot, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_multi_slot_map(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_fstr(pinfo->cinfo, COL_INFO, " | V5MSlink ID:%u", tvb_get_guint8(info_tvb, info_offset+2));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_v5_link_id, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+3))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+4))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+4, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+5))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+5, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+6))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+6, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+7))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+7, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+8))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+8, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+9))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+9, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+10))
proto_tree_add_item(info_tree, hf_v52_v5_multi_slot_elements, info_tvb, info_offset+10, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_bcc_rejct_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, reject_cause_type_values, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_reject_cause_type, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_bcc_protocol_error_cause(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, bcc_protocol_error_cause_type_values, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_bcc_protocol_error_cause, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+3))
proto_tree_add_item(info_tree, hf_v52_diagnostic_message, info_tvb, info_offset+3, info_element_length, ENC_BIG_ENDIAN);
if (tvb_reported_length_remaining(info_tvb, info_offset+4))
proto_tree_add_item(info_tree, hf_v52_diagnostic_information, info_tvb, info_offset+4, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_connection_incomplete(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1)+2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2) & 0x80, connection_incomplete_reason_values, "Unknown element"));
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_connection_incomplete_reason, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_link_control_function(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
proto_tree *info_tree;
proto_item *ti_info;
const guint8 info_element_length = 1;
guint8 info_element;
guint16 data_length;
tvbuff_t *info_tvb;
const int info_offset = 0;
info_element = tvb_get_guint8(tvb, offset);
data_length = tvb_get_guint8(tvb, offset+1) + 2;
info_tvb = tvb_new_subset_length(tvb, offset, data_length);
info_tree = proto_tree_add_subtree(tree, info_tvb, info_offset, -1, ett_v52_info, &ti_info, "Info Element:");
if (message_type_tmp != 0x31) {
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(tvb_get_guint8(info_tvb, info_offset+2)-0x80, link_control_function_values, "Unknown element"));
}
if (info_tree != NULL) {
proto_tree_add_item(info_tree, hf_v52_info_element, info_tvb, info_offset, info_element_length, ENC_BIG_ENDIAN);
proto_tree_add_item(info_tree, hf_v52_info_length, info_tvb, info_offset+1, info_element_length, ENC_BIG_ENDIAN);
proto_item_append_text(ti_info, " %s (0x%x)", val_to_str_ext_const(info_element, &info_element_values_ext, "unknown info element"), info_element);
proto_tree_add_item(info_tree, hf_v52_link_control_function, info_tvb, info_offset+2, info_element_length, ENC_BIG_ENDIAN);
}
}
static void
dissect_v52_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
int offset = 4;
guint8 info_element, info_element_length;
/*int old_offset;*/
int singleoctet;
while (tvb_reported_length_remaining(tvb, offset) > 0) {
singleoctet = 0;
/* old_offset = offset; */
info_element = tvb_get_guint8(tvb, offset);
switch (info_element) {
case PSTN_SEQUENCE_NUMBER:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_pstn_sequence_number(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case CADENCED_RINGING:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_cadenced_ring(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case PULSED_SIGNAL:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_pulsed_signal(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case STEADY_SIGNAL:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_steady_signal(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case DIGIT_SIGNAL:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_digit_signal(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case RECOGNITION_TIME:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_recognition_time(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case ENABLE_AUTO_ACK:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_enable_auto_ack(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case DISABLE_AUTO_ACK:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_disable_auto_ack(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case CAUSE:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_cause(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case RESOURCE_UNAVAILABLE:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_resource_unavailable(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case PULSE_NOTIFICATION:
dissect_pulse_notification(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case LINE_INFORMATION:
dissect_line_information(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case STATE:
dissect_state(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case AUTO_SIG_SEQUENCE:
dissect_auto_sig_sequence(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case SEQUENCE_RESPONSE:
dissect_sequence_response(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case CONTROL_FUNCTION_ELEMENT:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_control_function_element(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case CONTROL_FUNCTION_ID:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_control_function_id(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case VARIANT:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_variant(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case INTERFACE_ID:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_interface_id(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case SEQUENCE_NUMBER:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_sequence_number(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case C_CHANNEL_ID:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_physical_c_channel_id(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case PP_REJECTION_CAUSE:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_pp_rejection_cause(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case PROTOCOL_ERROR:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_protocol_error(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case PERFORMANCE_GRADING:
dissect_performance_grading(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case CP_REJECTION_CAUSE:
dissect_cp_rejection_cause(tvb, pinfo, tree, offset);
singleoctet = 1;
break;
case USER_PORT_ID:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_user_port_identification(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case ISDN_PORT_TS_ID:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_isdn_port_time_slot_identification(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case V5_TIME_SLOT_ID:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_v5_time_slot_identification(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case MULTI_SLOT_MAP:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_multi_slot_map(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case BCC_REJECT_CAUSE:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_bcc_rejct_cause(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case BCC_PROTOCOL_ERROR_CAUSE:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_bcc_protocol_error_cause(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case CONNECTION_INCOMPLETE:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_connection_incomplete(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
case LINK_CONTROL_FUNCTION:
info_element_length = tvb_get_guint8(tvb, offset+1);
dissect_link_control_function(tvb, pinfo, tree, offset);
offset += info_element_length+2;
break;
default:
offset += 1;
break;
}
if (singleoctet == 1) {
offset += 1;
}
#if 0
if (old_offset <= offset) {
expert_add_info_format(pinfo, NULL, PI_MALFORMED, PI_WARN, "Zero-length information element");
return;
}
#endif
}
}
static void
dissect_v52_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
int offset = 0;
proto_tree *v52_tree = NULL;
gboolean addr = FALSE;
guint8 bcc_all_address_tmp_up = -1;
guint16 pstn_all_address_tmp, isdn_all_address_tmp, bcc_all_address_tmp;
guint16 prot_all_address_tmp, link_all_address_tmp;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "V52");
if (tree) {
proto_item *ti;
ti = proto_tree_add_item(tree, proto_v52, tvb, offset, -1, ENC_NA);
v52_tree = proto_item_add_subtree(ti, ett_v52);
dissect_v52_protocol_discriminator(tvb, offset, v52_tree);
}
/* if (v52_tree != NULL) */ {
message_type_tmp = tvb_get_guint8(tvb, MSG_TYPE_OFFSET);
if ((message_type_tmp >= 0x00) && (message_type_tmp <= 0x0e)) {
addr = TRUE;
proto_tree_add_item(v52_tree, hf_v52_pstn_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_pstn_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
pstn_all_address_tmp = (((tvb_get_guint8(tvb, ADDRESS_OFFSET)>>1)<<8)+(tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET)));
col_append_fstr(pinfo->cinfo, COL_INFO, " | PSTN: %u", pstn_all_address_tmp);
}
if ((message_type_tmp >= 0x10) && (message_type_tmp <= 0x13)) {
addr = TRUE;
if ((tvb_get_guint8(tvb, ADDRESS_OFFSET)&0x01) == 0x1) {
pstn_all_address_tmp = (((tvb_get_guint8(tvb, ADDRESS_OFFSET)>>1)<<8)+(tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET)));
proto_tree_add_item(v52_tree, hf_v52_pstn_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_pstn_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | PSTN: %u", pstn_all_address_tmp);
}
else {
isdn_all_address_tmp = (((tvb_get_guint8(tvb, ADDRESS_OFFSET)>>2)<<7)+((tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET)>>1)));
proto_tree_add_item(v52_tree, hf_v52_isdn_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_isdn_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | ISDN: %u", isdn_all_address_tmp);
}
}
if ((message_type_tmp == 0x30) || (message_type_tmp == 0x31)) {
addr = TRUE;
link_all_address_tmp = tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET);
proto_tree_add_item(v52_tree, hf_v52_link_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_link_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | LinkId: %u", link_all_address_tmp);
}
if ((message_type_tmp >= 0x20) && (message_type_tmp <= 0x2a)) {
addr = TRUE;
proto_tree_add_item(v52_tree, hf_v52_bcc_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_bcc_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
bcc_all_address_tmp_up = tvb_get_guint8(tvb, ADDRESS_OFFSET);
if (bcc_all_address_tmp_up >= 128) {
bcc_all_address_tmp_up = bcc_all_address_tmp_up - 128;
}
bcc_all_address_tmp = (bcc_all_address_tmp_up<<6) + tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET);
col_append_fstr(pinfo->cinfo, COL_INFO, " | ref: %u", bcc_all_address_tmp);
}
if ((message_type_tmp >= 0x18) && (message_type_tmp <= 0x1f)) {
addr = TRUE;
prot_all_address_tmp = (tvb_get_guint8(tvb, ADDRESS_OFFSET)<<8) + (tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET));
proto_tree_add_item(v52_tree, hf_v52_prot_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_prot_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
if ((message_type_tmp == 0x1e) || (message_type_tmp == 0x1f)) {}
else {
col_append_fstr(pinfo->cinfo, COL_INFO, " | Log C-ch: %u", prot_all_address_tmp);
}
}
if (addr == FALSE) {
if ((tvb_get_guint8(tvb, ADDRESS_OFFSET)&0x01) == 0x1) {
pstn_all_address_tmp = (((tvb_get_guint8(tvb, ADDRESS_OFFSET)>>1)<<8)+(tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET)));
proto_tree_add_item(v52_tree, hf_v52_pstn_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_pstn_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | PSTN: %u", pstn_all_address_tmp);
}
else {
isdn_all_address_tmp = (((tvb_get_guint8(tvb, ADDRESS_OFFSET)>>2)<<7)+((tvb_get_guint8(tvb, LOW_ADDRESS_OFFSET)>>1)));
proto_tree_add_item(v52_tree, hf_v52_isdn_address, tvb, ADDRESS_OFFSET, ADDRESS_LENGTH, ENC_BIG_ENDIAN);
proto_tree_add_item(v52_tree, hf_v52_isdn_low_address, tvb, LOW_ADDRESS_OFFSET, LOW_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " | ISDN: %u", isdn_all_address_tmp);
}
}
proto_tree_add_item(v52_tree, hf_v52_msg_type, tvb, MSG_TYPE_OFFSET, MSG_TYPE_LENGTH, ENC_BIG_ENDIAN);
col_append_str(pinfo->cinfo, COL_INFO, " | ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str_ext_const(tvb_get_guint8(tvb, MSG_TYPE_OFFSET), &msg_type_values_short_ext, "Unknown msg type"));
dissect_v52_info(tvb, pinfo, v52_tree);
}
}
static int
dissect_v52(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
dissect_v52_message(tvb, pinfo, tree);
return tvb_captured_length(tvb);
}
void
proto_register_v52(void)
{
static hf_register_info hf[] = {
{ &hf_v52_discriminator,
{ "Protocol discriminator", "v52.disc", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
#if 0
{ &hf_v52_address,
{ "Address", "v52.address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
#endif
#if 0
{ &hf_v52_low_address,
{ "Address Low", "v52.low_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
#endif
/* ISDN */
{ &hf_v52_isdn_address,
{ "Address isdn", "v52.isdn_address",
FT_UINT8, BASE_HEX, NULL, 0xfc,
NULL, HFILL } },
{ &hf_v52_isdn_low_address,
{ "Address isdn Low", "v52.isdn_low_address",
FT_UINT8, BASE_HEX, NULL, 0xfe,
NULL, HFILL } },
/* PSTN */
{ &hf_v52_pstn_address,
{ "Address pstn", "v52.pstn_address",
FT_UINT8, BASE_HEX, NULL, 0xfe,
NULL, HFILL } },
{ &hf_v52_pstn_low_address,
{ "Address pstn Low", "v52.pstn_low_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
/* LINK */
{ &hf_v52_link_address,
{ "Address link", "v52.link_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{ &hf_v52_link_low_address,
{ "Address link Low", "v52.link_low_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
/* BCC */
{ &hf_v52_bcc_address,
{ "Address bcc", "v52.bcc_address",
FT_UINT8, BASE_HEX, NULL, 0x7f,
NULL, HFILL } },
{ &hf_v52_bcc_low_address,
{ "Address bcc Low", "v52.bcc_low_address",
FT_UINT8, BASE_HEX, NULL, 0x3f,
NULL, HFILL } },
/* PROTECTION */
{ &hf_v52_prot_address,
{ "Address prot", "v52.prot_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{ &hf_v52_prot_low_address,
{ "Address prot Low", "v52.prot_low_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
/* CONTROL */
#if 0
{ &hf_v52_ctrl_address,
{ "Address ctrl", "v52.ctrl_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
#endif
#if 0
{ &hf_v52_ctrl_low_address,
{ "Address ctrl Low", "v52.ctrl_low_address",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
#endif
/* OTHER */
{&hf_v52_msg_type,
{ "Message type", "v52.msg_type",
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &msg_type_values_ext, 0x0,
NULL, HFILL } },
{&hf_v52_info_element,
{ "Information element", "v52.info_element",
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &info_element_values_ext, 0x0,
NULL, HFILL } },
{&hf_v52_info_length,
{ "Information length", "v52.info_length",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL } },
{&hf_v52_pulse_notification,
{ "Pulse notification", "v52.pulse_notification",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL } },
{&hf_v52_pstn_sequence_number,
{ "Sequence number", "v52.pstn_sequence_number",
FT_UINT8, BASE_HEX, NULL, 0x7f,
NULL, HFILL } },
{&hf_v52_cadenced_ring,
{ "Cadenced ring", "v52.cadenced_ring",
FT_UINT8, BASE_HEX, NULL, 0x7f,
NULL, HFILL } },
{&hf_v52_pulse_type,
{ "Pulse Type", "v52.pulse_type",
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &pulse_type_values_ext, 0x0,
NULL, HFILL } },
{&hf_v52_suppression_indicator,
{ "Suppression indicator", "v52.suppression_indicator",
FT_UINT8, BASE_HEX, VALS(suppression_indication_values), 0x60,
NULL, HFILL } },
{&hf_v52_pulse_duration,
{ "Pulse duration type", "v52.pulse_duration",
FT_UINT8, BASE_HEX, NULL, 0x1f,
NULL, HFILL } },
{&hf_v52_ack_request_indicator,
{ "Ack request indicator", "v52.ack_request_indicator",
FT_UINT8, BASE_HEX, VALS(ack_request_indication_values), 0x60,
NULL, HFILL } },
{&hf_v52_number_of_pulses,
{ "Number of pulses", "v52.number_of_pulses",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL } },
{&hf_v52_steady_signal,
{ "Steady Signal", "v52.steady_signal",
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &steady_signal_values_ext, 0x7f,
NULL, HFILL } },
{&hf_v52_digit_ack,
{ "Digit ack request indication", "v52.digit_ack",
FT_BOOLEAN, 8, TFS(&tfs_digit_ack_values), 0x40,
NULL, HFILL } },
{&hf_v52_digit_spare,
{ "Digit spare", "v52.digit_spare",
FT_UINT8, BASE_HEX, NULL, 0x30,
NULL, HFILL } },
{&hf_v52_digit_info,
{ "Digit information", "v52.digit_info",
FT_UINT8, BASE_HEX, NULL, 0x0f,
NULL, HFILL } },
{&hf_v52_duration_type,
{ "Duration Type", "v52.duration_type",
FT_UINT8, BASE_HEX, NULL, 0x3f,
NULL, HFILL } },
{&hf_v52_res_unavailable,
{ "Resource unavailable", "v52.res_unavailable",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL } },
{&hf_v52_line_info,
{ "Line_Information", "v52.line_info",
FT_UINT8, BASE_HEX, VALS(line_info_values), 0x0f,
NULL, HFILL } },
{&hf_v52_state,
{ "PSTN FSM state", "v52.state",
FT_UINT8, BASE_HEX, VALS(state_values), 0x0f,
NULL, HFILL } },
{&hf_v52_auto_signalling_sequence,
{ "Autonomous signalling sequence", "v52.auto_signalling_sequence",
FT_UINT8, BASE_HEX, NULL, 0x0f,
NULL, HFILL } },
{&hf_v52_sequence_response,
{ "Sequence response", "v52.sequence_response",
FT_UINT8, BASE_HEX, NULL, 0x0f,
NULL, HFILL } },
{&hf_v52_control_function_element,
{ "Control function element", "v52.control_function_element",
FT_UINT8, BASE_HEX, VALS(control_function_element_values), 0x7f,
NULL, HFILL } },
{&hf_v52_control_function_id,
{ "Control function ID", "v52.control_function",
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &control_function_id_values_ext, 0x7f,
NULL, HFILL } },
{&hf_v52_variant,
{ "Variant", "v52.variant",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL } },
{&hf_v52_if_up_id,
{ "Interface up ID", "v52.interface_up_id",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{&hf_v52_if_id,
{ "Interface ID", "v52.interface_id",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{&hf_v52_if_low_id,
{ "Interface down ID", "v52.interface_low_id",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{&hf_v52_if_all_id,
{ "Interface all ID", "v52.interface_all_id",
FT_UINT24, BASE_DEC, NULL, 0xffffff,
NULL, HFILL } },
{&hf_v52_sequence_number,
{ "Sequence number", "v52.sequence_number",
FT_UINT8, BASE_HEX, NULL, 0x7f,
NULL, HFILL } },
{&hf_v52_v5_link_id,
{ "V5 2048 kbit/s Link Identifier", "v52.V5_ln_id",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL } },
{&hf_v52_v5_multi_slot_elements,
{ "Additional MS ID", "v52.add_ms_id",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{&hf_v52_v5_time_slot,
{ "V5 Time Slot Number", "v52.v5_time_slot",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL } },
{&hf_v52_rejection_cause,
{ "Rejection cause", "v52.rejection_cause",
FT_UINT8, BASE_HEX, VALS(rejection_cause_values), 0x7f,
NULL, HFILL } },
{&hf_v52_error_cause,
{ "Protocol Error Cause type", "v52.error_cause",
FT_UINT8, BASE_HEX, VALS(error_cause_values), 0x7f,
NULL, HFILL } },
{&hf_v52_diagnostic_msg,
{ "Diagnostic message", "v52.diagnostic_message",
FT_UINT8, BASE_HEX, NULL, 0x7f,
NULL, HFILL } },
{&hf_v52_diagnostic_element,
{ "Diagnostic element", "v52.diagnostic_element",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL } },
{&hf_v52_performance_grading,
{ "Performance grading", "v52.performance_grading",
FT_UINT8, BASE_HEX, VALS(performance_grading_values), 0x0f,
NULL, HFILL } },
{&hf_v52_cp_rejection_cause,
{ "Rejection cp cause", "v52.cp_rejection_cause",
FT_UINT8, BASE_HEX, VALS(cp_rejection_cause_values), 0x0f,
NULL, HFILL } },
{&hf_v52_pstn_user_port_id,
{ "PSTN User Port identification Value", "v52.pstn_user_port_id",
FT_UINT8, BASE_HEX, NULL, 0xfe,
NULL, HFILL } },
{&hf_v52_pstn_user_port_id_lower,
{ "PSTN User Port Identification Value (lower)", "v52.pstn_user_port_id_lower",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{&hf_v52_isdn_user_port_id,
{ "ISDN User Port Identification Value", "v52.isdn_user_port_id",
FT_UINT8, BASE_HEX, NULL, 0xfc,
NULL, HFILL } },
{&hf_v52_isdn_user_port_id_lower,
{ "ISDN User Port Identification Value (lower)", "v52.user_port_id_lower",
FT_UINT8, BASE_HEX, NULL, 0xfe,
NULL, HFILL } },
{&hf_v52_isdn_user_port_ts_num,
{ "ISDN user port time slot number", "v52.isdn_user_port_ts_num",
FT_UINT8, BASE_HEX, NULL, 0x1f,
NULL, HFILL } },
{&hf_v52_override,
{ "Override", "v52.override",
FT_BOOLEAN, 8, NULL, 0x20,
NULL, HFILL } },
{&hf_v52_reject_cause_type,
{ "Reject cause type", "v52.reject_cause_type",
FT_UINT8, BASE_HEX, VALS(reject_cause_type_values), 0x7f,
NULL, HFILL } },
{&hf_v52_bcc_protocol_error_cause,
{ "Protocol error cause type", "v52.bcc_protocol_cause",
FT_UINT8, BASE_HEX, VALS(bcc_protocol_error_cause_type_values), 0x7f,
NULL, HFILL } },
{&hf_v52_diagnostic_message,
{ "Diagnostic message", "v52.diagnostic_message",
FT_UINT8, BASE_HEX, NULL, 0x7f,
NULL, HFILL } },
{&hf_v52_diagnostic_information,
{ "Diagnostic information", "v52.diagnostic_inforation",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL } },
{&hf_v52_connection_incomplete_reason,
{ "Reason", "v52.connection_incomplete_reason",
FT_UINT8, BASE_HEX, VALS(connection_incomplete_reason_values), 0x0,
NULL, HFILL } },
{&hf_v52_link_control_function,
{ "Link control function", "v52.link_control_function",
FT_UINT8, BASE_HEX, VALS(link_control_function_values), 0x7f,
NULL, HFILL } },
{&hf_v52_cause_type,
{ "Cause type", "v52.cause_type",
FT_UINT8, BASE_HEX, VALS(cause_type_values), 0x7f,
NULL, HFILL } }
};
static gint *ett[] = {
&ett_v52,
&ett_v52_info,
};
proto_v52 = proto_register_protocol("V5.2", "V5.2", "v52");
proto_register_field_array (proto_v52, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
register_dissector("v52", dissect_v52, proto_v52);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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