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1302 lines
60 KiB
1302 lines
60 KiB
/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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/*
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* Copyright (C) 2017-2022 by Bryan Biedenkapp N2PLL
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "Defines.h"
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#include "p25/P25Defines.h"
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#include "p25/lc/TSBK.h"
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#include "p25/P25Utils.h"
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#include "edac/CRC.h"
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#include "HostMain.h"
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#include "Log.h"
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#include "Utils.h"
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using namespace p25::lc;
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using namespace p25;
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#include <cstdio>
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#include <cmath>
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#include <cassert>
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#include <cstring>
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#include <chrono>
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#include <ctime>
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Initializes a copy instance of the TSBK class.
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/// </summary>
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/// <param name="data"></param>
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TSBK::TSBK(const TSBK& data) : TSBK()
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{
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copy(data);
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}
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/// <summary>
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/// Initializes a new instance of the TSBK class.
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/// </summary>
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/// <param name="siteData"></param>
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/// <param name="entry"></param>
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TSBK::TSBK(SiteData siteData, ::lookups::IdenTable entry) : TSBK(siteData)
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{
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m_siteIdenEntry = entry;
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}
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/// <summary>
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/// Initializes a new instance of the TSBK class.
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/// </summary>
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/// <param name="siteData"></param>
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/// <param name="entry"></param>
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/// <param name="verbose"></param>
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TSBK::TSBK(SiteData siteData, ::lookups::IdenTable entry, bool verbose) : TSBK(siteData, entry, verbose, false)
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{
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m_verbose = verbose;
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}
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/// <summary>
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/// Initializes a new instance of the TSBK class.
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/// </summary>
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/// <param name="siteData"></param>
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/// <param name="entry"></param>
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/// <param name="verbose"></param>
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TSBK::TSBK(SiteData siteData, ::lookups::IdenTable entry, bool verbose, bool warnCRC) : TSBK(siteData)
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{
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m_warnCRC = warnCRC;
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m_siteIdenEntry = entry;
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}
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/// <summary>
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/// Initializes a new instance of the TSBK class.
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/// </summary>
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/// <param name="lc"></param>
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TSBK::TSBK(LC* lc) : TSBK(lc->siteData())
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{
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m_protect = lc->m_protect;
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m_lco = lc->m_lco;
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m_mfId = lc->m_mfId;
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m_srcId = lc->m_srcId;
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m_dstId = lc->m_dstId;
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m_grpVchNo = lc->m_grpVchNo;
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m_emergency = lc->m_emergency;
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m_encrypted = lc->m_encrypted;
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m_priority = lc->m_priority;
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m_group = lc->m_group;
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}
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/// <summary>
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/// Finalizes a instance of TSBK class.
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/// </summary>
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TSBK::~TSBK()
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{
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delete[] m_siteCallsign;
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}
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/// <summary>
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/// Equals operator.
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/// </summary>
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/// <param name="data"></param>
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/// <returns></returns>
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TSBK& TSBK::operator=(const TSBK& data)
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{
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if (this != &data) {
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copy(data);
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}
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return *this;
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}
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/// <summary>
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/// Decode a alternate trunking signalling block.
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/// </summary>
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/// <param name="dataHeader"></param>
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/// <param name="block"></param>
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/// <returns>True, if TSBK was decoded, otherwise false.</returns>
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bool TSBK::decodeMBT(const data::DataHeader dataHeader, const uint8_t* block)
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{
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m_lco = dataHeader.getAMBTOpcode(); // LCO
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m_lastBlock = true;
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m_mfId = dataHeader.getMFId(); // Mfg Id.
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if (dataHeader.getOutbound()) {
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LogWarning(LOG_P25, "TSBK::decodeMBT(), MBT is an outbound MBT?, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
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}
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ulong64_t tsbkValue = 0U;
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if (dataHeader.getFormat() == PDU_FMT_AMBT) {
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// combine bytes into rs value
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tsbkValue = dataHeader.getAMBTField8();
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tsbkValue = (tsbkValue << 8) + dataHeader.getAMBTField9();
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tsbkValue = (tsbkValue << 8) + block[0U];
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tsbkValue = (tsbkValue << 8) + block[1U];
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tsbkValue = (tsbkValue << 8) + block[2U];
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tsbkValue = (tsbkValue << 8) + block[3U];
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tsbkValue = (tsbkValue << 8) + block[4U];
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tsbkValue = (tsbkValue << 8) + block[5U];
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} else {
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// combine bytes into rs value
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tsbkValue = block[0U];
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tsbkValue = (tsbkValue << 8) + block[1U];
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tsbkValue = (tsbkValue << 8) + block[2U];
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tsbkValue = (tsbkValue << 8) + block[3U];
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tsbkValue = (tsbkValue << 8) + block[4U];
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tsbkValue = (tsbkValue << 8) + block[5U];
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tsbkValue = (tsbkValue << 8) + block[6U];
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tsbkValue = (tsbkValue << 8) + block[7U];
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}
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// Motorola P25 vendor opcodes
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if (m_mfId == P25_MFG_MOT) {
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switch (m_lco) {
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case TSBK_IOSP_GRP_VCH:
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case TSBK_IOSP_UU_VCH:
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case TSBK_IOSP_UU_ANS:
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case TSBK_IOSP_TELE_INT_ANS:
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case TSBK_IOSP_STS_UPDT:
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case TSBK_IOSP_STS_Q:
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case TSBK_IOSP_MSG_UPDT:
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case TSBK_IOSP_CALL_ALRT:
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case TSBK_IOSP_ACK_RSP:
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case TSBK_IOSP_GRP_AFF:
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case TSBK_IOSP_U_REG:
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case TSBK_ISP_CAN_SRV_REQ:
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case TSBK_ISP_GRP_AFF_Q_RSP:
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case TSBK_OSP_DENY_RSP:
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case TSBK_OSP_QUE_RSP:
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case TSBK_ISP_U_DEREG_REQ:
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case TSBK_OSP_U_DEREG_ACK:
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case TSBK_ISP_LOC_REG_REQ:
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m_mfId = P25_MFG_STANDARD;
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break;
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default:
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LogError(LOG_P25, "TSBK::decodeMBT(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
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break;
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}
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if (m_mfId == P25_MFG_MOT) {
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return true;
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}
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else {
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m_mfId = dataHeader.getMFId();
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}
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}
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// standard P25 reference opcodes
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switch (m_lco) {
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case TSBK_IOSP_STS_UPDT:
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m_statusValue = (uint8_t)((tsbkValue >> 48) & 0xFFFFU); // Message Value
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m_netId = (uint32_t)((tsbkValue >> 28) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 16) & 0xFFFU); // System ID
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m_dstId = (uint32_t)(((tsbkValue) & 0xFFFFU) << 8) + block[6U]; // Target Radio Address
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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case TSBK_IOSP_MSG_UPDT:
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m_messageValue = (uint32_t)((tsbkValue >> 48) & 0xFFFFU); // Message Value
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m_netId = (uint32_t)((tsbkValue >> 28) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 16) & 0xFFFU); // System ID
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m_dstId = (uint32_t)(((tsbkValue) & 0xFFFFU) << 8) + block[6U]; // Target Radio Address
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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case TSBK_IOSP_CALL_ALRT:
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m_netId = (uint32_t)((tsbkValue >> 44) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 32) & 0xFFFU); // System ID
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m_dstId = (uint32_t)((tsbkValue >> 8) & 0xFFFFFFU); // Target Radio Address
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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case TSBK_IOSP_ACK_RSP:
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m_aivFlag = false;
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m_service = (uint8_t)((tsbkValue >> 56) & 0x3FU); // Service Type
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m_netId = (uint32_t)((tsbkValue >> 36) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 24) & 0xFFFU); // System ID
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m_dstId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Target Radio Address
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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case TSBK_IOSP_GRP_AFF:
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m_netId = (uint32_t)((tsbkValue >> 44) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 32) & 0xFFFU); // System ID
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m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Talkgroup Address
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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case TSBK_ISP_CAN_SRV_REQ:
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m_aivFlag = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Additional Info. Flag
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m_service = (uint8_t)((tsbkValue >> 56) & 0x3FU); // Service Type
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m_response = (uint8_t)((tsbkValue >> 48) & 0xFFU); // Reason
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m_netId = (uint32_t)((tsbkValue >> 20) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 8) & 0xFFFU); // System ID
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m_dstId = (uint32_t)((((tsbkValue) & 0xFFU) << 16) + // Target Radio Address
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(block[6U] << 8) + (block[7U]));
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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case TSBK_IOSP_EXT_FNCT:
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m_netId = (uint32_t)((tsbkValue >> 44) & 0xFFFFFU); // Network ID
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m_sysId = (uint32_t)((tsbkValue >> 32) & 0xFFFU); // System ID
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m_extendedFunction = (uint32_t)(((tsbkValue) & 0xFFFFU) << 8) + block[6U]; // Extended Function
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m_srcId = dataHeader.getLLId(); // Source Radio Address
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break;
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default:
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LogError(LOG_P25, "TSBK::decodeMBT(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
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break;
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}
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return true;
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}
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/// <summary>
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/// Decode a trunking signalling block.
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/// </summary>
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/// <param name="data"></param>
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/// <param name="rawTSBK"></param>
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/// <returns>True, if TSBK was decoded, otherwise false.</returns>
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bool TSBK::decode(const uint8_t* data, bool rawTSBK)
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{
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assert(data != NULL);
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uint8_t tsbk[P25_TSBK_LENGTH_BYTES + 1U];
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if (rawTSBK) {
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::memcpy(tsbk, data, P25_TSBK_LENGTH_BYTES);
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bool ret = edac::CRC::checkCCITT162(tsbk, P25_TSBK_LENGTH_BYTES);
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if (!ret) {
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if (m_warnCRC) {
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LogWarning(LOG_P25, "TSBK::decode(), failed CRC CCITT-162 check");
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ret = true; // ignore CRC error
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}
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else {
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LogError(LOG_P25, "TSBK::decode(), failed CRC CCITT-162 check");
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}
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}
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}
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else {
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// deinterleave
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uint8_t raw[P25_TSBK_FEC_LENGTH_BYTES];
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P25Utils::decode(data, raw, 114U, 318U);
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// decode 1/2 rate Trellis & check CRC-CCITT 16
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try {
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bool ret = m_trellis.decode12(raw, tsbk);
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if (!ret) {
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LogError(LOG_P25, "TSBK::decode(), failed to decode Trellis 1/2 rate coding");
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}
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if (ret) {
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ret = edac::CRC::checkCCITT162(tsbk, P25_TSBK_LENGTH_BYTES);
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if (!ret) {
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if (m_warnCRC) {
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LogWarning(LOG_P25, "TSBK::decode(), failed CRC CCITT-162 check");
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ret = true; // ignore CRC error
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}
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else {
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LogError(LOG_P25, "TSBK::decode(), failed CRC CCITT-162 check");
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}
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}
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}
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if (!ret)
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return false;
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}
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catch (...) {
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Utils::dump(2U, "P25, decoding excepted with input data", tsbk, P25_TSBK_LENGTH_BYTES);
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return false;
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}
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}
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if (m_verbose) {
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Utils::dump(2U, "Decoded TSBK", tsbk, P25_TSBK_LENGTH_BYTES);
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}
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m_lco = tsbk[0U] & 0x3F; // LCO
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m_lastBlock = (tsbk[0U] & 0x80U) == 0x80U; // Last Block Marker
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m_mfId = tsbk[1U]; // Mfg Id.
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ulong64_t tsbkValue = 0U;
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// combine bytes into rs value
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tsbkValue = tsbk[2U];
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tsbkValue = (tsbkValue << 8) + tsbk[3U];
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tsbkValue = (tsbkValue << 8) + tsbk[4U];
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tsbkValue = (tsbkValue << 8) + tsbk[5U];
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tsbkValue = (tsbkValue << 8) + tsbk[6U];
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tsbkValue = (tsbkValue << 8) + tsbk[7U];
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tsbkValue = (tsbkValue << 8) + tsbk[8U];
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tsbkValue = (tsbkValue << 8) + tsbk[9U];
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// Motorola P25 vendor opcodes
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if (m_mfId == P25_MFG_MOT) {
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switch (m_lco) {
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case TSBK_IOSP_GRP_VCH:
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case TSBK_IOSP_UU_VCH:
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case TSBK_IOSP_UU_ANS:
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case TSBK_IOSP_TELE_INT_ANS:
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case TSBK_IOSP_STS_UPDT:
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case TSBK_IOSP_STS_Q:
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case TSBK_IOSP_MSG_UPDT:
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case TSBK_IOSP_CALL_ALRT:
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case TSBK_IOSP_ACK_RSP:
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case TSBK_IOSP_GRP_AFF:
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case TSBK_IOSP_U_REG:
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case TSBK_ISP_CAN_SRV_REQ:
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case TSBK_ISP_GRP_AFF_Q_RSP:
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case TSBK_OSP_DENY_RSP:
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case TSBK_OSP_QUE_RSP:
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case TSBK_ISP_U_DEREG_REQ:
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case TSBK_OSP_U_DEREG_ACK:
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case TSBK_ISP_LOC_REG_REQ:
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m_mfId = P25_MFG_STANDARD;
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break;
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default:
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LogError(LOG_P25, "TSBK::decode(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
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break;
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}
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if (m_mfId == P25_MFG_MOT) {
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return true;
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}
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else {
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m_mfId = tsbk[1U];
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}
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}
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|
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// internal P25 vendor opcodes
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if (m_mfId == P25_MFG_DVM) {
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switch (m_lco) {
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case LC_CALL_TERM:
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m_grpVchId = ((tsbkValue >> 52) & 0x0FU); // Channel ID
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m_grpVchNo = ((tsbkValue >> 40) & 0xFFFU); // Channel Number
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m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Target Radio Address
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m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
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break;
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default:
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m_mfId = P25_MFG_STANDARD;
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break;
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}
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|
|
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if (m_mfId == P25_MFG_DVM) {
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return true;
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}
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else {
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m_mfId = tsbk[1U];
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}
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}
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|
|
// standard P25 reference opcodes
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switch (m_lco) {
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case TSBK_IOSP_GRP_VCH:
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m_emergency = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Emergency Flag
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m_encrypted = (((tsbkValue >> 56) & 0xFFU) & 0x40U) == 0x40U; // Encryption Flag
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m_priority = (((tsbkValue >> 56) & 0xFFU) & 0x07U); // Priority
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m_grpVchId = ((tsbkValue >> 52) & 0x0FU); // Channel ID
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m_grpVchNo = ((tsbkValue >> 40) & 0xFFFU); // Channel Number
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m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Target Radio Address
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m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
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break;
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case TSBK_IOSP_UU_VCH:
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m_emergency = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Emergency Flag
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m_encrypted = (((tsbkValue >> 56) & 0xFFU) & 0x40U) == 0x40U; // Encryption Flag
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m_priority = (((tsbkValue >> 56) & 0xFFU) & 0x07U); // Priority
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m_grpVchId = ((tsbkValue >> 52) & 0x0FU); // Channel ID
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m_grpVchNo = ((tsbkValue >> 40) & 0xFFFU); // Channel Number
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m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
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m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
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break;
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case TSBK_IOSP_UU_ANS:
|
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m_emergency = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Emergency Flag
|
|
m_encrypted = (((tsbkValue >> 56) & 0xFFU) & 0x40U) == 0x40U; // Encryption Flag
|
|
m_priority = (((tsbkValue >> 56) & 0xFFU) & 0x07U); // Priority
|
|
m_response = (uint8_t)((tsbkValue >> 48) & 0xFFU); // Answer Response
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_TELE_INT_ANS:
|
|
m_emergency = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Emergency Flag
|
|
m_encrypted = (((tsbkValue >> 56) & 0xFFU) & 0x40U) == 0x40U; // Encryption Flag
|
|
m_priority = (((tsbkValue >> 56) & 0xFFU) & 0x07U); // Priority
|
|
m_response = (uint8_t)((tsbkValue >> 48) & 0xFFU); // Answer Response
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_ISP_SNDCP_CH_REQ:
|
|
m_dataServiceOptions = (uint8_t)((tsbkValue >> 56) & 0xFFU); // Data Service Options
|
|
m_dataAccessControl = (uint32_t)((tsbkValue >> 40) & 0xFFFFFFFFU); // Data Access Control
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_STS_UPDT:
|
|
m_statusValue = (uint8_t)((tsbkValue >> 56) & 0xFFU); // Status Value
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_MSG_UPDT:
|
|
m_messageValue = (uint32_t)((tsbkValue >> 48) & 0xFFFFU); // Message Value
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_CALL_ALRT:
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_ACK_RSP:
|
|
m_aivFlag = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Additional Info. Flag
|
|
m_service = (uint8_t)((tsbkValue >> 56) & 0x3FU); // Service Type
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_ISP_EMERG_ALRM_REQ: // TSBK_OSP_DENY_RSP
|
|
/*
|
|
** these are used by TSBK_OSP_DENY_RSP; best way to check is for m_response > 0
|
|
*/
|
|
m_aivFlag = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Additional Info. Flag
|
|
m_service = (uint8_t)((tsbkValue >> 56) & 0x3FU); // Service Type
|
|
m_response = (uint8_t)((tsbkValue >> 48) & 0xFFU); // Reason
|
|
|
|
if (m_response == 0U) {
|
|
m_emergency = true;
|
|
} else {
|
|
m_emergency = false;
|
|
}
|
|
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_EXT_FNCT:
|
|
m_extendedFunction = (uint32_t)((tsbkValue >> 48) & 0xFFFFU); // Extended Function
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Argument
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Target Radio Address
|
|
break;
|
|
case TSBK_IOSP_GRP_AFF:
|
|
m_sysId = (uint32_t)((tsbkValue >> 40) & 0xFFFU); // System ID
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Talkgroup Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_U_REG:
|
|
m_netId = (uint32_t)((tsbkValue >> 36) & 0xFFFFFU); // Network ID
|
|
m_sysId = (uint32_t)((tsbkValue >> 24) & 0xFFFU); // System ID
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_ISP_CAN_SRV_REQ:
|
|
m_aivFlag = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Additional Info. Flag
|
|
m_service = (uint8_t)((tsbkValue >> 56) & 0x3FU); // Service Type
|
|
m_response = (uint8_t)((tsbkValue >> 48) & 0xFFU); // Reason
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_ISP_GRP_AFF_Q_RSP:
|
|
m_patchSuperGroupId = (uint32_t)((tsbkValue >> 40) & 0xFFFFU); // Announcement Group Address
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Talkgroup Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_QUE_RSP:
|
|
m_aivFlag = (((tsbkValue >> 56) & 0xFFU) & 0x80U) == 0x80U; // Additional Info. Flag
|
|
m_service = (uint8_t)((tsbkValue >> 56) & 0x3FU); // Service Type
|
|
m_response = (uint8_t)((tsbkValue >> 48) & 0xFFU); // Reason
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFFFU); // Target Radio Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_ISP_U_DEREG_REQ:
|
|
case TSBK_OSP_U_DEREG_ACK:
|
|
m_netId = (uint32_t)((tsbkValue >> 36) & 0xFFFFFU); // Network ID
|
|
m_sysId = (uint32_t)((tsbkValue >> 24) & 0xFFFU); // System ID
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_ISP_LOC_REG_REQ:
|
|
m_lra = (uint8_t)((tsbkValue >> 40) & 0xFFU); // LRA
|
|
m_dstId = (uint32_t)((tsbkValue >> 24) & 0xFFFFU); // Talkgroup Address
|
|
m_srcId = (uint32_t)(tsbkValue & 0xFFFFFFU); // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_ADJ_STS_BCAST:
|
|
m_adjSysId = (uint32_t)((tsbkValue >> 40) & 0xFFFU); // Site System ID
|
|
m_adjRfssId = (uint8_t)((tsbkValue >> 32) & 0xFFU); // Site RFSS ID
|
|
m_adjSiteId = (uint8_t)((tsbkValue >> 24) & 0xFFU); // Site ID
|
|
m_adjChannelId = (uint8_t)((tsbkValue >> 20) & 0xFU); // Site Channel ID
|
|
m_adjChannelNo = (uint32_t)((tsbkValue >> 8) & 0xFFFU); // Site Channel Number
|
|
m_adjServiceClass = (uint8_t)(tsbkValue & 0xFFU); // Site Service Class
|
|
break;
|
|
default:
|
|
LogError(LOG_P25, "TSBK::decode(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Encode a trunking signalling block.
|
|
/// </summary>
|
|
/// <param name="data"></param>
|
|
/// <param name="rawTSBK"></param>
|
|
/// <param name="noTrellis"></param>
|
|
void TSBK::encode(uint8_t* data, bool rawTSBK, bool noTrellis)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
const uint32_t services = (m_siteData.netActive()) ? P25_SYS_SRV_NET_ACTIVE : 0U | P25_SYS_SRV_DEFAULT;
|
|
std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
|
|
time_t tt = std::chrono::system_clock::to_time_t(now);
|
|
|
|
uint8_t tsbk[P25_TSBK_LENGTH_BYTES];
|
|
::memset(tsbk, 0x00U, P25_TSBK_LENGTH_BYTES);
|
|
|
|
ulong64_t tsbkValue = 0U;
|
|
tsbk[0U] = m_lco; // LCO
|
|
tsbk[0U] |= (m_lastBlock) ? 0x80U : 0x00U; // Last Block Marker
|
|
|
|
tsbk[1U] = m_mfId;
|
|
|
|
// standard P25 reference opcodes
|
|
switch (m_lco) {
|
|
case TSBK_IOSP_GRP_VCH:
|
|
tsbkValue =
|
|
(m_emergency ? 0x80U : 0x00U) + // Emergency Flag
|
|
(m_encrypted ? 0x40U : 0x00U) + // Encrypted Flag
|
|
(m_priority & 0x07U); // Priority
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_grpVchNo; // Channel Number
|
|
tsbkValue = (tsbkValue << 16) + m_dstId; // Talkgroup Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_UU_VCH:
|
|
tsbkValue =
|
|
(m_emergency ? 0x80U : 0x00U) + // Emergency Flag
|
|
(m_encrypted ? 0x40U : 0x00U) + // Encrypted Flag
|
|
(m_priority & 0x07U); // Priority
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_grpVchNo; // Channel Number
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_UU_ANS:
|
|
tsbkValue =
|
|
(m_emergency ? 0x80U : 0x00U) + // Emergency Flag
|
|
(m_encrypted ? 0x40U : 0x00U) + // Encrypted Flag
|
|
(m_priority & 0x07U); // Priority
|
|
tsbkValue = (tsbkValue << 32) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_SNDCP_CH_GNT:
|
|
{
|
|
uint32_t calcSpace = (uint32_t)(m_siteIdenEntry.chSpaceKhz() / 0.125);
|
|
float calcTxOffset = m_siteIdenEntry.txOffsetMhz() * 1000000;
|
|
|
|
uint32_t txFrequency = (uint32_t)((m_siteIdenEntry.baseFrequency() + ((calcSpace * 125) * m_dataChannelNo)));
|
|
uint32_t rxFrequency = (uint32_t)(txFrequency + calcTxOffset);
|
|
|
|
uint32_t rootFreq = rxFrequency - m_siteIdenEntry.baseFrequency();
|
|
uint32_t rxChNo = rootFreq / (m_siteIdenEntry.chSpaceKhz() * 1000);
|
|
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 8) + m_dataServiceOptions; // Data Service Options
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel (T) ID
|
|
tsbkValue = (tsbkValue << 12) + m_dataChannelNo; // Channel (T) Number
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel (R) ID
|
|
tsbkValue = (tsbkValue << 12) + (rxChNo & 0xFFFU); // Channel (R) Number
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
}
|
|
break;
|
|
case TSBK_IOSP_STS_UPDT:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 16) + m_statusValue; // Status Value
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_MSG_UPDT:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 16) + m_messageValue; // Message Value
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_CALL_ALRT:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 40) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_ACK_RSP:
|
|
tsbkValue = (m_service & 0x3F); // Service Type
|
|
tsbkValue |= (m_aivFlag) ? 0x80U : 0x00U; // Additional Info. Valid Flag
|
|
tsbkValue |= (m_extendedAddrFlag) ? 0x40U : 0x00U; // Extended Addressing Flag
|
|
if (m_aivFlag && m_extendedAddrFlag) {
|
|
tsbkValue = (tsbkValue << 20) + m_siteData.netId(); // Network ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.sysId(); // System ID
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 32) + m_dstId; // Target Radio Address
|
|
}
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_IOSP_EXT_FNCT:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 16) + m_extendedFunction; // Extended Function
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Argument
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
break;
|
|
case TSBK_IOSP_GRP_AFF:
|
|
tsbkValue = 1U; // Local/Global Affiliation Flag (0 = Local, 1 = Global)
|
|
tsbkValue = (tsbkValue << 7) + (m_response & 0x3U); // Affiliation Response
|
|
tsbkValue = (tsbkValue << 16) + (m_patchSuperGroupId & 0xFFFFU); // Announcement Group Address
|
|
tsbkValue = (tsbkValue << 16) + (m_dstId & 0xFFFFU); // Talkgroup Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_SNDCP_CH_ANN:
|
|
{
|
|
uint32_t calcSpace = (uint32_t)(m_siteIdenEntry.chSpaceKhz() / 0.125);
|
|
float calcTxOffset = m_siteIdenEntry.txOffsetMhz() * 1000000;
|
|
|
|
uint32_t txFrequency = (uint32_t)((m_siteIdenEntry.baseFrequency() + ((calcSpace * 125) * m_siteData.channelNo())));
|
|
uint32_t rxFrequency = (uint32_t)(txFrequency + calcTxOffset);
|
|
|
|
uint32_t rootFreq = rxFrequency - m_siteIdenEntry.baseFrequency();
|
|
uint32_t rxChNo = rootFreq / (m_siteIdenEntry.chSpaceKhz() * 1000);
|
|
|
|
tsbkValue = 0U; //
|
|
tsbkValue = (m_emergency ? 0x80U : 0x00U) + // Emergency Flag
|
|
(m_encrypted ? 0x40U : 0x00U); // Encrypted Flag
|
|
tsbkValue = (tsbkValue << 8) +
|
|
(m_sndcpAutoAccess ? 0x80U : 0x00U) + // Autonomous Access
|
|
(m_sndcpAutoAccess ? 0x40U : 0x00U); // Requested Access
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel (T) ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.channelNo(); // Channel (T) Number
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel (R) ID
|
|
tsbkValue = (tsbkValue << 12) + (rxChNo & 0xFFFU); // Channel (R) Number
|
|
tsbkValue = (tsbkValue << 16) + m_sndcpDAC; // Data Access Control
|
|
}
|
|
break;
|
|
case TSBK_IOSP_U_REG:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 2) + (m_response & 0x3U); // Unit Registration Response
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.sysId(); // System ID
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Source ID
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_GRP_VCH_GRANT_UPD:
|
|
tsbkValue = 0U;
|
|
tsbkValue = m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_grpVchNo; // Channel Number
|
|
tsbkValue = (tsbkValue << 16) + m_dstId; // Talkgroup Address
|
|
tsbkValue = (tsbkValue << 32) + 0;
|
|
break;
|
|
case TSBK_OSP_DENY_RSP: // TSBK_ISP_EMERG_ALRM_REQ
|
|
case TSBK_OSP_QUE_RSP:
|
|
{
|
|
if (m_response == 0U) {
|
|
if (m_lco == TSBK_OSP_QUE_RSP) {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_QUE_RSP, reason = %u", m_response);
|
|
}
|
|
else {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_DENY_RSP, reason = %u", m_response);
|
|
}
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
|
|
tsbkValue = (m_aivFlag) ? 0x80U : 0x00U; // Additional Info Flag
|
|
tsbkValue = (tsbkValue << 6) + m_service; // Service Type
|
|
tsbkValue = (tsbkValue << 8) + m_response; // Deny/Queue Reason
|
|
|
|
if (m_group) {
|
|
// group deny/queue
|
|
tsbkValue = (tsbkValue << 8) + 0U; // Call Options
|
|
tsbkValue = (tsbkValue << 16) + m_dstId; // Talkgroup Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
}
|
|
else {
|
|
// private/individual deny/queue
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
}
|
|
}
|
|
break;
|
|
case TSBK_OSP_SCCB_EXP:
|
|
tsbkValue = m_siteData.rfssId(); // RF Sub-System ID
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.siteId(); // Site ID
|
|
|
|
tsbkValue = (tsbkValue << 4) + m_sccbChannelId1; // Channel (T) ID
|
|
tsbkValue = (tsbkValue << 12) + m_sccbChannelNo; // Channel (T) Number
|
|
tsbkValue = (tsbkValue << 12) + m_sccbChannelId1; // Channel (R) ID
|
|
tsbkValue = (tsbkValue << 12) + m_sccbChannelNo; // Channel (R) Number
|
|
|
|
if (m_sccbChannelId1 > 0) {
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.serviceClass(); // System Service Class
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 8) + (P25_SVC_CLS_INVALID); // System Service Class
|
|
}
|
|
break;
|
|
case TSBK_OSP_GRP_AFF_Q:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_LOC_REG_RSP:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 6) + (m_response & 0x3U); // Registration Response
|
|
tsbkValue = (tsbkValue << 16) + (m_dstId & 0xFFFFU); // Talkgroup Address
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.rfssId(); // RF Sub-System ID
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.sysId(); // Site ID
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_U_REG_CMD:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 24) + m_dstId; // Target Radio Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_U_DEREG_ACK:
|
|
tsbkValue = 0U;
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.netId(); // Network ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.sysId(); // System ID
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
case TSBK_OSP_SYNC_BCAST:
|
|
{
|
|
tm local_tm = *gmtime(&tt);
|
|
|
|
uint32_t tmM = (local_tm.tm_mon + 1);
|
|
uint32_t tmY = (local_tm.tm_year + 1900) - 2000;
|
|
|
|
#if DEBUG_P25_TSBK
|
|
LogDebug(LOG_P25, "TSBK_OSP_SYNC_BCAST, tmM = %u / %u, tmY = %u / %u", local_tm.tm_mon, tmM, local_tm.tm_year, tmY);
|
|
#endif
|
|
|
|
// determine LTO and direction (positive or negative)
|
|
bool negativeLTO = false;
|
|
uint8_t lto = fabs(m_siteData.lto()) * 2U; // this will cause a bug for half-hour timezone intervals...
|
|
if (m_siteData.lto() < 0)
|
|
negativeLTO = true;
|
|
|
|
// mark the LTO as valid if its non-zero
|
|
bool vl = false;
|
|
if (lto > 0U)
|
|
vl = true;
|
|
|
|
uint8_t mc = 0U;
|
|
|
|
// wrap microslot count if necessary
|
|
if (m_microslotCount > 7999U)
|
|
m_microslotCount = 0U;
|
|
|
|
tsbkValue = 0x0AU + // US - Unsynced Flag Set / MMU - Microslot/Minute Unlock Flag Set
|
|
((mc & 0x03U) >> 1); // Minute Correction MSB
|
|
tsbkValue = (tsbkValue << 8) +
|
|
((mc & 0x01U) << 7) + // Minute Correction LSB
|
|
(vl ? 0x40U : 0x00U) + // Valid LTO Flag
|
|
(negativeLTO ? 0x20U : 0x00U) + // Add/Subtract LTO Flag
|
|
(lto & 0x1F); // LTO
|
|
|
|
// Date
|
|
tsbkValue = (tsbkValue << 7) + (tmY & 0x7FU); // Number of Years Past 2000
|
|
tsbkValue = (tsbkValue << 4) + (tmM & 0x0FU); // Month
|
|
tsbkValue = (tsbkValue << 5) + (local_tm.tm_mday & 0x1FU); // Day of Month
|
|
|
|
// Time
|
|
tsbkValue = (tsbkValue << 5) + (local_tm.tm_hour & 0x1FU); // Hour
|
|
tsbkValue = (tsbkValue << 6) + (local_tm.tm_min & 0x3FU); // Minute
|
|
|
|
tsbkValue = (tsbkValue << 13) + (m_microslotCount & 0x1FFFU); // Microslot Count
|
|
}
|
|
break;
|
|
case TSBK_OSP_IDEN_UP_VU:
|
|
{
|
|
if ((m_siteIdenEntry.chBandwidthKhz() != 0.0F) && (m_siteIdenEntry.chSpaceKhz() != 0.0F) &&
|
|
(m_siteIdenEntry.txOffsetMhz() != 0.0F) && (m_siteIdenEntry.baseFrequency() != 0U)) {
|
|
uint32_t calcSpace = (uint32_t)(m_siteIdenEntry.chSpaceKhz() / 0.125);
|
|
|
|
float fCalcTxOffset = (fabs(m_siteIdenEntry.txOffsetMhz()) / m_siteIdenEntry.chSpaceKhz()) * 1000.0F;
|
|
uint32_t uCalcTxOffset = (uint32_t)fCalcTxOffset;
|
|
if (m_siteIdenEntry.txOffsetMhz() > 0.0F)
|
|
uCalcTxOffset |= 0x2000U; // this sets a positive offset ...
|
|
|
|
uint32_t calcBaseFreq = (uint32_t)(m_siteIdenEntry.baseFrequency() / 5);
|
|
uint8_t chanBw = (m_siteIdenEntry.chBandwidthKhz() >= 12.5F) ? P25_IDEN_UP_VU_BW_125K : P25_IDEN_UP_VU_BW_625K;
|
|
|
|
tsbkValue = m_siteIdenEntry.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 4) + chanBw; // Channel Bandwidth
|
|
tsbkValue = (tsbkValue << 14) + uCalcTxOffset; // Transmit Offset
|
|
tsbkValue = (tsbkValue << 10) + calcSpace; // Channel Spacing
|
|
tsbkValue = (tsbkValue << 32) + calcBaseFreq; // Base Frequency
|
|
}
|
|
else {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_IDEN_UP_VU, baseFrequency = %uHz, txOffsetMhz = %fMHz, chBandwidthKhz = %fKHz, chSpaceKhz = %fKHz",
|
|
m_siteIdenEntry.baseFrequency(), m_siteIdenEntry.txOffsetMhz(), m_siteIdenEntry.chBandwidthKhz(),
|
|
m_siteIdenEntry.chSpaceKhz());
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
}
|
|
break;
|
|
case TSBK_OSP_SYS_SRV_BCAST:
|
|
tsbkValue = 0U; //
|
|
tsbkValue = (tsbkValue << 16) + services; // System Services Available
|
|
tsbkValue = (tsbkValue << 24) + services; // System Services Supported
|
|
break;
|
|
case TSBK_OSP_SCCB:
|
|
tsbkValue = m_siteData.rfssId(); // RF Sub-System ID
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.siteId(); // Site ID
|
|
tsbkValue = (tsbkValue << 16) + m_sccbChannelId1; // SCCB Channel ID 1
|
|
if (m_sccbChannelId1 > 0) {
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.serviceClass(); // System Service Class
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 8) + (P25_SVC_CLS_INVALID); // System Service Class
|
|
}
|
|
tsbkValue = (tsbkValue << 16) + m_sccbChannelId2; // SCCB Channel ID 2
|
|
if (m_sccbChannelId2 > 0) {
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.serviceClass(); // System Service Class
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 8) + (P25_SVC_CLS_INVALID); // System Service Class
|
|
}
|
|
break;
|
|
case TSBK_OSP_RFSS_STS_BCAST:
|
|
tsbkValue = m_siteData.lra(); // Location Registration Area
|
|
tsbkValue = (tsbkValue << 4) +
|
|
(m_siteData.netActive()) ? P25_CFVA_NETWORK : 0U; // CFVA
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.sysId(); // System ID
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.rfssId(); // RF Sub-System ID
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.siteId(); // Site ID
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.channelNo(); // Channel Number
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.serviceClass(); // System Service Class
|
|
break;
|
|
case TSBK_OSP_NET_STS_BCAST:
|
|
tsbkValue = m_siteData.lra(); // Location Registration Area
|
|
tsbkValue = (tsbkValue << 20) + m_siteData.netId(); // Network ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.sysId(); // System ID
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.channelNo(); // Channel Number
|
|
tsbkValue = (tsbkValue << 8) + m_siteData.serviceClass(); // System Service Class
|
|
break;
|
|
case TSBK_OSP_ADJ_STS_BCAST:
|
|
{
|
|
if ((m_adjRfssId != 0U) && (m_adjSiteId != 0U) && (m_adjChannelNo != 0U)) {
|
|
if (m_adjSysId == 0U) {
|
|
m_adjSysId = m_siteData.sysId();
|
|
}
|
|
|
|
tsbkValue = m_siteData.lra(); // Location Registration Area
|
|
tsbkValue = (tsbkValue << 8) + m_adjCFVA; // CFVA
|
|
tsbkValue = (tsbkValue << 12) + m_adjSysId; // System ID
|
|
tsbkValue = (tsbkValue << 8) + m_adjRfssId; // RF Sub-System ID
|
|
tsbkValue = (tsbkValue << 8) + m_adjSiteId; // Site ID
|
|
tsbkValue = (tsbkValue << 4) + m_adjChannelId; // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_adjChannelNo; // Channel Number
|
|
tsbkValue = (tsbkValue << 8) + m_adjServiceClass; // System Service Class
|
|
}
|
|
else {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for OSP_ADJ_STS_BCAST, adjRfssId = $%02X, adjSiteId = $%02X, adjChannelId = %u, adjChannelNo = $%02X, adjSvcClass = $%02X",
|
|
m_adjRfssId, m_adjSiteId, m_adjChannelId, m_adjChannelNo, m_adjServiceClass);
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
}
|
|
break;
|
|
case TSBK_OSP_IDEN_UP:
|
|
{
|
|
if ((m_siteIdenEntry.chBandwidthKhz() != 0.0F) && (m_siteIdenEntry.chSpaceKhz() != 0.0F) &&
|
|
(m_siteIdenEntry.txOffsetMhz() != 0.0F) && (m_siteIdenEntry.baseFrequency() != 0U)) {
|
|
if (m_siteIdenEntry.baseFrequency() < 762000000U) {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_IDEN_UP, baseFrequency = %uHz",
|
|
m_siteIdenEntry.baseFrequency());
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
|
|
uint32_t calcSpace = (uint32_t)(m_siteIdenEntry.chSpaceKhz() / 0.125);
|
|
|
|
float fCalcTxOffset = (fabs(m_siteIdenEntry.txOffsetMhz()) * 1000000.0F) / 250000.0F;
|
|
uint32_t uCalcTxOffset = (uint32_t)fCalcTxOffset;
|
|
if (m_siteIdenEntry.txOffsetMhz() > 0.0F)
|
|
uCalcTxOffset |= 0x2000U; // this sets a positive offset ...
|
|
|
|
uint32_t calcBaseFreq = (uint32_t)(m_siteIdenEntry.baseFrequency() / 5);
|
|
uint16_t chanBw = (uint16_t)((m_siteIdenEntry.chBandwidthKhz() * 1000) / 125);
|
|
|
|
tsbkValue = m_siteIdenEntry.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 9) + chanBw; // Channel Bandwidth
|
|
tsbkValue = (tsbkValue << 9) + uCalcTxOffset; // Transmit Offset
|
|
tsbkValue = (tsbkValue << 10) + calcSpace; // Channel Spacing
|
|
tsbkValue = (tsbkValue << 32) + calcBaseFreq; // Base Frequency
|
|
}
|
|
else {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_IDEN_UP, baseFrequency = %uHz, txOffsetMhz = %fMHz, chBandwidthKhz = %fKHz, chSpaceKhz = %fKHz",
|
|
m_siteIdenEntry.baseFrequency(), m_siteIdenEntry.txOffsetMhz(), m_siteIdenEntry.chBandwidthKhz(),
|
|
m_siteIdenEntry.chSpaceKhz());
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
if (m_mfId == P25_MFG_STANDARD) {
|
|
LogError(LOG_P25, "TSBK::encode(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!m_vendorSkip) {
|
|
// Motorola P25 vendor opcodes
|
|
if (m_mfId == P25_MFG_MOT) {
|
|
switch (m_lco) {
|
|
case TSBK_OSP_MOT_GRG_ADD:
|
|
{
|
|
if ((m_patchSuperGroupId != 0U)) {
|
|
tsbkValue = m_patchSuperGroupId; // Patch Super Group Address
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup1Id; // Patch Group 1 Address
|
|
|
|
if (m_patchGroup2Id != 0U) {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup2Id; // Patch Group 2 Address
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup1Id; // Patch Group 1 Address
|
|
}
|
|
|
|
if (m_patchGroup3Id != 0U) {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup3Id; // Patch Group 3 Address
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup1Id; // Patch Group 1 Address
|
|
}
|
|
} // otherwise handled as a TSBK_OSP_MOT_GRG_ADD
|
|
}
|
|
break;
|
|
case TSBK_OSP_MOT_GRG_DEL:
|
|
{
|
|
if ((m_patchSuperGroupId != 0U) && (m_patchGroup1Id != 0U)) {
|
|
tsbkValue = m_patchSuperGroupId; // Patch Super Group Address
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup1Id; // Patch Group 1 Address
|
|
|
|
if (m_patchGroup2Id != 0U) {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup2Id; // Patch Group 2 Address
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup1Id; // Patch Group 1 Address
|
|
}
|
|
|
|
if (m_patchGroup3Id != 0U) {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup3Id; // Patch Group 3 Address
|
|
}
|
|
else {
|
|
tsbkValue = (tsbkValue << 16) + m_patchGroup1Id; // Patch Group 1 Address
|
|
}
|
|
}
|
|
else {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_MOT_GRG_DEL, patchSuperGroupId = $%02X, patchGroup1Id = $%02X",
|
|
m_patchSuperGroupId, m_patchGroup1Id);
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
}
|
|
break;
|
|
case TSBK_OSP_MOT_GRG_VCH_GRANT:
|
|
{
|
|
if (m_patchSuperGroupId != 0U) {
|
|
tsbkValue = 0U; // Priority
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.channelNo(); // Channel Number
|
|
tsbkValue = (tsbkValue << 16) + m_patchSuperGroupId; // Patch Supergroup Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
}
|
|
else {
|
|
LogError(LOG_P25, "TSBK::encode(), invalid values for TSBK_OSP_MOT_GRG_VCH_GRANT, patchSuperGroupId = $%02X", m_patchSuperGroupId);
|
|
return; // blatently ignore creating this TSBK
|
|
}
|
|
}
|
|
break;
|
|
case TSBK_OSP_MOT_GRG_VCH_UPD:
|
|
tsbkValue = m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelNo(); // Channel Number
|
|
tsbkValue = (tsbkValue << 12) + m_patchGroup1Id; // Patch Group 1
|
|
tsbkValue = (tsbkValue << 16) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelNo(); // Channel Number
|
|
tsbkValue = (tsbkValue << 12) + m_patchGroup2Id; // Patch Group 2
|
|
break;
|
|
break;
|
|
case TSBK_OSP_MOT_CC_BSI:
|
|
tsbkValue = (m_siteCallsign[0] - 43U) & 0x3F; // Character 0
|
|
for (uint8_t i = 1; i < P25_MOT_CALLSIGN_LENGTH_BYTES; i++) {
|
|
tsbkValue = (tsbkValue << 6) + ((m_siteCallsign[i] - 43U) & 0x3F); // Character 1 - 7
|
|
}
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.channelNo(); // Channel Number
|
|
break;
|
|
case TSBK_OSP_MOT_PSH_CCH:
|
|
tsbkValue = 0U;
|
|
break;
|
|
// because of how MFId is handled; we have to skip these opcodes
|
|
case TSBK_IOSP_UU_VCH:
|
|
case TSBK_IOSP_STS_UPDT:
|
|
case TSBK_IOSP_STS_Q:
|
|
case TSBK_IOSP_MSG_UPDT:
|
|
case TSBK_IOSP_CALL_ALRT:
|
|
case TSBK_IOSP_GRP_AFF:
|
|
case TSBK_IOSP_ACK_RSP:
|
|
case TSBK_IOSP_U_REG:
|
|
case TSBK_OSP_DENY_RSP:
|
|
case TSBK_OSP_QUE_RSP:
|
|
case TSBK_OSP_GRP_AFF_Q:
|
|
case TSBK_OSP_U_REG_CMD:
|
|
case TSBK_OSP_U_DEREG_ACK:
|
|
break;
|
|
default:
|
|
LogError(LOG_P25, "TSBK::encode(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// internal P25 vendor opcodes
|
|
if (m_mfId == P25_MFG_DVM) {
|
|
switch (m_lco) {
|
|
case TSBK_OSP_DVM_GIT_HASH:
|
|
tsbkValue = g_gitHashBytes[0]; // ...
|
|
tsbkValue = (tsbkValue << 8) + (g_gitHashBytes[1U]); // ...
|
|
tsbkValue = (tsbkValue << 8) + (g_gitHashBytes[2U]); // ...
|
|
tsbkValue = (tsbkValue << 8) + (g_gitHashBytes[3U]); // ...
|
|
tsbkValue = (tsbkValue << 16) + 0U;
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_siteData.channelNo(); // Channel Number
|
|
break;
|
|
case LC_CALL_TERM:
|
|
tsbkValue = (tsbkValue << 4) + m_siteData.channelId(); // Channel ID
|
|
tsbkValue = (tsbkValue << 12) + m_grpVchNo; // Channel Number
|
|
tsbkValue = (tsbkValue << 16) + m_dstId; // Talkgroup Address
|
|
tsbkValue = (tsbkValue << 24) + m_srcId; // Source Radio Address
|
|
break;
|
|
default:
|
|
LogError(LOG_P25, "TSBK::encode(), unknown TSBK LCO value, mfId = $%02X, lco = $%02X", m_mfId, m_lco);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// split rs value into bytes
|
|
tsbk[2U] = (uint8_t)((tsbkValue >> 56) & 0xFFU);
|
|
tsbk[3U] = (uint8_t)((tsbkValue >> 48) & 0xFFU);
|
|
tsbk[4U] = (uint8_t)((tsbkValue >> 40) & 0xFFU);
|
|
tsbk[5U] = (uint8_t)((tsbkValue >> 32) & 0xFFU);
|
|
tsbk[6U] = (uint8_t)((tsbkValue >> 24) & 0xFFU);
|
|
tsbk[7U] = (uint8_t)((tsbkValue >> 16) & 0xFFU);
|
|
tsbk[8U] = (uint8_t)((tsbkValue >> 8) & 0xFFU);
|
|
tsbk[9U] = (uint8_t)((tsbkValue >> 0) & 0xFFU);
|
|
|
|
// compute CRC-CCITT 16
|
|
edac::CRC::addCCITT162(tsbk, P25_TSBK_LENGTH_BYTES);
|
|
|
|
if (m_verbose) {
|
|
Utils::dump(2U, "TSBK::encode(), TSBK Value", tsbk, P25_TSBK_LENGTH_BYTES);
|
|
}
|
|
|
|
uint8_t raw[P25_TSBK_FEC_LENGTH_BYTES];
|
|
::memset(raw, 0x00U, P25_TSBK_FEC_LENGTH_BYTES);
|
|
|
|
// encode 1/2 rate Trellis
|
|
m_trellis.encode12(tsbk, raw);
|
|
|
|
// are we encoding a raw TSBK?
|
|
if (rawTSBK) {
|
|
if (noTrellis) {
|
|
::memcpy(data, tsbk, P25_TSBK_LENGTH_BYTES);
|
|
}
|
|
else {
|
|
::memcpy(data, raw, P25_TSBK_FEC_LENGTH_BYTES);
|
|
}
|
|
}
|
|
else {
|
|
// interleave
|
|
P25Utils::encode(raw, data, 114U, 318U);
|
|
|
|
#if DEBUG_P25_TSBK
|
|
Utils::dump(2U, "TSBK::encode(), TSBK Interleave", data, P25_TSBK_FEC_LENGTH_BYTES + P25_PREAMBLE_LENGTH_BYTES);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets the flag to skip vendor opcode processing.
|
|
/// </summary>
|
|
/// <param name="skip">Flag indicating to skip vendor opcode processing.</param>
|
|
void TSBK::setVendorSkip(bool skip)
|
|
{
|
|
m_vendorSkip = skip;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets the callsign.
|
|
/// </summary>
|
|
/// <param name="callsign">Callsign.</param>
|
|
void TSBK::setCallsign(std::string callsign)
|
|
{
|
|
uint32_t idLength = callsign.length();
|
|
if (idLength > 0) {
|
|
::memset(m_siteCallsign, 0x20U, P25_MOT_CALLSIGN_LENGTH_BYTES);
|
|
|
|
if (idLength > P25_MOT_CALLSIGN_LENGTH_BYTES)
|
|
idLength = P25_MOT_CALLSIGN_LENGTH_BYTES;
|
|
for (uint32_t i = 0; i < idLength; i++)
|
|
m_siteCallsign[i] = callsign[i];
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Private Class Members
|
|
// ---------------------------------------------------------------------------
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the TSBK class.
|
|
/// </summary>
|
|
/// <remarks>This should never be used.</remarks>
|
|
TSBK::TSBK() : TSBK(SiteData())
|
|
{
|
|
/* stub */
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the TSBK class.
|
|
/// </summary>
|
|
/// <param name="siteData"></param>
|
|
TSBK::TSBK(SiteData siteData) :
|
|
m_verbose(false),
|
|
#if FORCE_TSBK_CRC_WARN
|
|
m_warnCRC(true),
|
|
#else
|
|
m_warnCRC(false),
|
|
#endif
|
|
m_protect(false),
|
|
m_lco(LC_GROUP),
|
|
m_mfId(P25_MFG_STANDARD),
|
|
m_srcId(0U),
|
|
m_dstId(0U),
|
|
m_lastBlock(false),
|
|
m_aivFlag(true),
|
|
m_extendedAddrFlag(false),
|
|
m_service(0U),
|
|
m_response(P25_RSP_ACCEPT),
|
|
m_netId(P25_WACN_STD_DEFAULT),
|
|
m_sysId(P25_SID_STD_DEFAULT),
|
|
m_grpVchId(0U),
|
|
m_grpVchNo(0U),
|
|
m_messageValue(0U),
|
|
m_statusValue(0U),
|
|
m_extendedFunction(P25_EXT_FNCT_CHECK),
|
|
m_microslotCount(0U),
|
|
m_dataServiceOptions(0U),
|
|
m_dataAccessControl(0U),
|
|
m_dataChannelNo(0U),
|
|
m_adjCFVA(P25_CFVA_FAILURE),
|
|
m_adjRfssId(0U),
|
|
m_adjSiteId(0U),
|
|
m_adjChannelId(0U),
|
|
m_adjChannelNo(0U),
|
|
m_adjServiceClass(P25_SVC_CLS_INVALID),
|
|
m_sccbChannelId1(0U),
|
|
m_sccbChannelId2(0U),
|
|
m_sccbChannelNo(0U),
|
|
m_lra(0U),
|
|
m_patchSuperGroupId(0U),
|
|
m_patchGroup1Id(0U),
|
|
m_patchGroup2Id(0U),
|
|
m_patchGroup3Id(0U),
|
|
m_emergency(false),
|
|
m_encrypted(false),
|
|
m_priority(4U),
|
|
m_group(true),
|
|
m_siteData(siteData),
|
|
m_siteIdenEntry(),
|
|
m_rs(),
|
|
m_trellis(),
|
|
m_vendorSkip(false),
|
|
m_sndcpAutoAccess(true),
|
|
m_sndcpReqAccess(false),
|
|
m_sndcpDAC(1U),
|
|
m_siteCallsign(NULL)
|
|
{
|
|
m_siteCallsign = new uint8_t[P25_MOT_CALLSIGN_LENGTH_BYTES];
|
|
::memset(m_siteCallsign, 0x00U, P25_MOT_CALLSIGN_LENGTH_BYTES);
|
|
setCallsign(siteData.callsign());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Internal helper to copy the the class.
|
|
/// </summary>
|
|
/// <param name="data"></param>
|
|
void TSBK::copy(const TSBK& data)
|
|
{
|
|
m_verbose = data.m_verbose;
|
|
m_warnCRC = data.m_warnCRC;
|
|
m_protect = data.m_protect;
|
|
m_lco = data.m_lco;
|
|
m_mfId = data.m_mfId;
|
|
|
|
m_srcId = data.m_srcId;
|
|
m_dstId = data.m_dstId;
|
|
|
|
m_lastBlock = data.m_lastBlock;
|
|
m_aivFlag = data.m_aivFlag;
|
|
m_extendedAddrFlag = data.m_extendedAddrFlag;
|
|
|
|
m_service = data.m_service;
|
|
m_response = data.m_response;
|
|
|
|
m_netId = data.m_netId;
|
|
m_sysId = data.m_sysId;
|
|
|
|
m_grpVchNo = data.m_grpVchNo;
|
|
|
|
m_messageValue = data.m_messageValue;
|
|
m_statusValue = data.m_statusValue;
|
|
|
|
m_extendedFunction = data.m_extendedFunction;
|
|
|
|
m_microslotCount = data.m_microslotCount;
|
|
|
|
m_dataChannelNo = data.m_dataChannelNo;
|
|
|
|
m_adjCFVA = data.m_adjCFVA;
|
|
m_adjRfssId = data.m_adjRfssId;
|
|
m_adjSiteId = data.m_adjSiteId;
|
|
m_adjChannelId = data.m_adjChannelId;
|
|
m_adjChannelNo = data.m_adjChannelNo;
|
|
m_adjServiceClass = data.m_adjServiceClass;
|
|
|
|
m_sccbChannelId1 = data.m_sccbChannelId1;
|
|
m_sccbChannelId2 = data.m_sccbChannelId2;
|
|
m_sccbChannelNo = data.m_sccbChannelNo;
|
|
|
|
m_lra = data.m_lra;
|
|
|
|
m_patchSuperGroupId = data.m_patchSuperGroupId;
|
|
m_patchGroup1Id = data.m_patchGroup1Id;
|
|
m_patchGroup2Id = data.m_patchGroup2Id;
|
|
m_patchGroup3Id = data.m_patchGroup3Id;
|
|
|
|
m_emergency = data.m_emergency;
|
|
m_encrypted = data.m_encrypted;
|
|
m_priority = data.m_priority;
|
|
|
|
m_group = data.m_group;
|
|
|
|
m_siteData = data.m_siteData;
|
|
m_siteIdenEntry = data.m_siteIdenEntry;
|
|
|
|
delete[] m_siteCallsign;
|
|
|
|
uint8_t* callsign = new uint8_t[P25_MOT_CALLSIGN_LENGTH_BYTES];
|
|
::memcpy(callsign, data.m_siteCallsign, P25_MOT_CALLSIGN_LENGTH_BYTES);
|
|
|
|
m_siteCallsign = callsign;
|
|
}
|