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ycs232-kbc
Jonathan Naylor 9 years ago
parent 353c5803d5
commit f137449ae6
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240
YSFGateway/CRC.cpp
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "CRC.h"
#include "Utils.h"
#include "Log.h"
#include <cstdint>
#include <cstdio>
#include <cassert>
#include <cmath>
const uint8_t CRC8_TABLE[] = {
0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15, 0x38, 0x3F, 0x36, 0x31,
0x24, 0x23, 0x2A, 0x2D, 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D, 0xE0, 0xE7, 0xEE, 0xE9,
0xFC, 0xFB, 0xF2, 0xF5, 0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85, 0xA8, 0xAF, 0xA6, 0xA1,
0xB4, 0xB3, 0xBA, 0xBD, 0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA, 0xB7, 0xB0, 0xB9, 0xBE,
0xAB, 0xAC, 0xA5, 0xA2, 0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32, 0x1F, 0x18, 0x11, 0x16,
0x03, 0x04, 0x0D, 0x0A, 0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A, 0x89, 0x8E, 0x87, 0x80,
0x95, 0x92, 0x9B, 0x9C, 0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC, 0xC1, 0xC6, 0xCF, 0xC8,
0xDD, 0xDA, 0xD3, 0xD4, 0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44, 0x19, 0x1E, 0x17, 0x10,
0x05, 0x02, 0x0B, 0x0C, 0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B, 0x76, 0x71, 0x78, 0x7F,
0x6A, 0x6D, 0x64, 0x63, 0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13, 0xAE, 0xA9, 0xA0, 0xA7,
0xB2, 0xB5, 0xBC, 0xBB, 0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB, 0xE6, 0xE1, 0xE8, 0xEF,
0xFA, 0xFD, 0xF4, 0xF3, 0x01 };
const uint16_t CCITT16_TABLE1[] = {
0x0000U, 0x1189U, 0x2312U, 0x329bU, 0x4624U, 0x57adU, 0x6536U, 0x74bfU,
0x8c48U, 0x9dc1U, 0xaf5aU, 0xbed3U, 0xca6cU, 0xdbe5U, 0xe97eU, 0xf8f7U,
0x1081U, 0x0108U, 0x3393U, 0x221aU, 0x56a5U, 0x472cU, 0x75b7U, 0x643eU,
0x9cc9U, 0x8d40U, 0xbfdbU, 0xae52U, 0xdaedU, 0xcb64U, 0xf9ffU, 0xe876U,
0x2102U, 0x308bU, 0x0210U, 0x1399U, 0x6726U, 0x76afU, 0x4434U, 0x55bdU,
0xad4aU, 0xbcc3U, 0x8e58U, 0x9fd1U, 0xeb6eU, 0xfae7U, 0xc87cU, 0xd9f5U,
0x3183U, 0x200aU, 0x1291U, 0x0318U, 0x77a7U, 0x662eU, 0x54b5U, 0x453cU,
0xbdcbU, 0xac42U, 0x9ed9U, 0x8f50U, 0xfbefU, 0xea66U, 0xd8fdU, 0xc974U,
0x4204U, 0x538dU, 0x6116U, 0x709fU, 0x0420U, 0x15a9U, 0x2732U, 0x36bbU,
0xce4cU, 0xdfc5U, 0xed5eU, 0xfcd7U, 0x8868U, 0x99e1U, 0xab7aU, 0xbaf3U,
0x5285U, 0x430cU, 0x7197U, 0x601eU, 0x14a1U, 0x0528U, 0x37b3U, 0x263aU,
0xdecdU, 0xcf44U, 0xfddfU, 0xec56U, 0x98e9U, 0x8960U, 0xbbfbU, 0xaa72U,
0x6306U, 0x728fU, 0x4014U, 0x519dU, 0x2522U, 0x34abU, 0x0630U, 0x17b9U,
0xef4eU, 0xfec7U, 0xcc5cU, 0xddd5U, 0xa96aU, 0xb8e3U, 0x8a78U, 0x9bf1U,
0x7387U, 0x620eU, 0x5095U, 0x411cU, 0x35a3U, 0x242aU, 0x16b1U, 0x0738U,
0xffcfU, 0xee46U, 0xdcddU, 0xcd54U, 0xb9ebU, 0xa862U, 0x9af9U, 0x8b70U,
0x8408U, 0x9581U, 0xa71aU, 0xb693U, 0xc22cU, 0xd3a5U, 0xe13eU, 0xf0b7U,
0x0840U, 0x19c9U, 0x2b52U, 0x3adbU, 0x4e64U, 0x5fedU, 0x6d76U, 0x7cffU,
0x9489U, 0x8500U, 0xb79bU, 0xa612U, 0xd2adU, 0xc324U, 0xf1bfU, 0xe036U,
0x18c1U, 0x0948U, 0x3bd3U, 0x2a5aU, 0x5ee5U, 0x4f6cU, 0x7df7U, 0x6c7eU,
0xa50aU, 0xb483U, 0x8618U, 0x9791U, 0xe32eU, 0xf2a7U, 0xc03cU, 0xd1b5U,
0x2942U, 0x38cbU, 0x0a50U, 0x1bd9U, 0x6f66U, 0x7eefU, 0x4c74U, 0x5dfdU,
0xb58bU, 0xa402U, 0x9699U, 0x8710U, 0xf3afU, 0xe226U, 0xd0bdU, 0xc134U,
0x39c3U, 0x284aU, 0x1ad1U, 0x0b58U, 0x7fe7U, 0x6e6eU, 0x5cf5U, 0x4d7cU,
0xc60cU, 0xd785U, 0xe51eU, 0xf497U, 0x8028U, 0x91a1U, 0xa33aU, 0xb2b3U,
0x4a44U, 0x5bcdU, 0x6956U, 0x78dfU, 0x0c60U, 0x1de9U, 0x2f72U, 0x3efbU,
0xd68dU, 0xc704U, 0xf59fU, 0xe416U, 0x90a9U, 0x8120U, 0xb3bbU, 0xa232U,
0x5ac5U, 0x4b4cU, 0x79d7U, 0x685eU, 0x1ce1U, 0x0d68U, 0x3ff3U, 0x2e7aU,
0xe70eU, 0xf687U, 0xc41cU, 0xd595U, 0xa12aU, 0xb0a3U, 0x8238U, 0x93b1U,
0x6b46U, 0x7acfU, 0x4854U, 0x59ddU, 0x2d62U, 0x3cebU, 0x0e70U, 0x1ff9U,
0xf78fU, 0xe606U, 0xd49dU, 0xc514U, 0xb1abU, 0xa022U, 0x92b9U, 0x8330U,
0x7bc7U, 0x6a4eU, 0x58d5U, 0x495cU, 0x3de3U, 0x2c6aU, 0x1ef1U, 0x0f78U };
const uint16_t CCITT16_TABLE2[] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7,
0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF,
0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6,
0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE,
0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485,
0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D,
0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4,
0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC,
0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B,
0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12,
0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A,
0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41,
0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49,
0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70,
0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78,
0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F,
0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E,
0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256,
0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D,
0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C,
0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634,
0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB,
0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3,
0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92,
0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9,
0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1,
0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8,
0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 };
bool CCRC::checkFiveBit(bool* in, unsigned int tcrc)
{
assert(in != NULL);
unsigned int crc;
encodeFiveBit(in, crc);
return crc == tcrc;
}
void CCRC::encodeFiveBit(const bool* in, unsigned int& tcrc)
{
assert(in != NULL);
unsigned short total = 0U;
for (unsigned int i = 0U; i < 72U; i += 8U) {
unsigned char c;
CUtils::bitsToByteBE(in + i, c);
total += c;
}
total %= 31U;
tcrc = total;
}
void CCRC::addCCITT162(unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0U;
for (unsigned i = 0U; i < (length - 2U); i++)
crc16 = (uint16_t(crc8[0U]) << 8) ^ CCITT16_TABLE2[crc8[1U] ^ in[i]];
crc16 = ~crc16;
in[length - 1U] = crc8[0U];
in[length - 2U] = crc8[1U];
}
bool CCRC::checkCCITT162(const unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0U;
for (unsigned i = 0U; i < (length - 2U); i++)
crc16 = (uint16_t(crc8[0U]) << 8) ^ CCITT16_TABLE2[crc8[1U] ^ in[i]];
crc16 = ~crc16;
return crc8[0U] == in[length - 1U] && crc8[1U] == in[length - 2U];
}
void CCRC::addCCITT161(unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0xFFFFU;
for (unsigned int i = 0U; i < (length - 2U); i++)
crc16 = uint16_t(crc8[1U]) ^ CCITT16_TABLE1[crc8[0U] ^ in[i]];
crc16 = ~crc16;
in[length - 2U] = crc8[0U];
in[length - 1U] = crc8[1U];
}
bool CCRC::checkCCITT161(const unsigned char *in, unsigned int length)
{
assert(in != NULL);
assert(length > 2U);
union {
uint16_t crc16;
uint8_t crc8[2U];
};
crc16 = 0xFFFFU;
for (unsigned int i = 0U; i < (length - 2U); i++)
crc16 = uint16_t(crc8[1U]) ^ CCITT16_TABLE1[crc8[0U] ^ in[i]];
crc16 = ~crc16;
return crc8[0U] == in[length - 2U] && crc8[1U] == in[length - 1U];
}
unsigned char CCRC::crc8(const unsigned char *in, unsigned int length)
{
assert(in != NULL);
uint8_t crc = 0U;
for (unsigned int i = 0U; i < length; i++)
crc = CRC8_TABLE[crc ^ in[i]];
return crc;
}

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YSFGateway/CRC.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(CRC_H)
#define CRC_H
class CCRC
{
public:
static bool checkFiveBit(bool* in, unsigned int tcrc);
static void encodeFiveBit(const bool* in, unsigned int& tcrc);
static void addCCITT161(unsigned char* in, unsigned int length);
static void addCCITT162(unsigned char* in, unsigned int length);
static bool checkCCITT161(const unsigned char* in, unsigned int length);
static bool checkCCITT162(const unsigned char* in, unsigned int length);
static unsigned char crc8(const unsigned char* in, unsigned int length);
};
#endif

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YSFGateway/Conf.cpp
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Conf.h"
#include "Log.h"
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cctype>
const int BUFFER_SIZE = 500;
enum SECTION {
SECTION_NONE,
SECTION_GENERAL,
SECTION_INFO,
SECTION_LOG,
SECTION_APRS_FI,
SECTION_NETWORK
};
CConf::CConf(const std::string& file) :
m_file(file),
m_callsign(),
m_port(0U),
m_daemon(false),
m_rxFrequency(0U),
m_txFrequency(0U),
m_power(0U),
m_latitude(0.0F),
m_longitude(0.0F),
m_height(0),
m_location(),
m_description(),
m_url(),
m_logDisplayLevel(0U),
m_logFileLevel(0U),
m_logFilePath(),
m_logFileRoot(),
m_aprsEnabled(false),
m_aprsHostname(),
m_aprsPort(0U),
m_aprsPassword(),
m_networkEnabled(false),
m_networkPort(0U),
m_networkHosts(),
m_networkDebug(false)
{
}
CConf::~CConf()
{
}
bool CConf::read()
{
FILE* fp = ::fopen(m_file.c_str(), "rt");
if (fp == NULL) {
::fprintf(stderr, "Couldn't open the .ini file - %s\n", m_file.c_str());
return false;
}
SECTION section = SECTION_NONE;
char buffer[BUFFER_SIZE];
while (::fgets(buffer, BUFFER_SIZE, fp) != NULL) {
if (buffer[0U] == '#')
continue;
if (buffer[0U] == '[') {
if (::strncmp(buffer, "[General]", 9U) == 0)
section = SECTION_GENERAL;
else if (::strncmp(buffer, "[Info]", 6U) == 0)
section = SECTION_INFO;
else if (::strncmp(buffer, "[Log]", 5U) == 0)
section = SECTION_LOG;
else if (::strncmp(buffer, "[aprs.fi]", 5U) == 0)
section = SECTION_APRS_FI;
else if (::strncmp(buffer, "[Network]", 5U) == 0)
section = SECTION_NETWORK;
else
section = SECTION_NONE;
continue;
}
char* key = ::strtok(buffer, " \t=\r\n");
if (key == NULL)
continue;
char* value = ::strtok(NULL, "\r\n");
if (section == SECTION_GENERAL) {
if (::strcmp(key, "Callsign") == 0) {
// Convert the callsign to upper case
for (unsigned int i = 0U; value[i] != 0; i++)
value[i] = ::toupper(value[i]);
m_callsign = value;
} else if (::strcmp(key, "Port") == 0)
m_port = (unsigned int)::atoi(value);
else if (::strcmp(key, "Daemon") == 0)
m_daemon = ::atoi(value) == 1;
} else if (section == SECTION_INFO) {
if (::strcmp(key, "TXFrequency") == 0)
m_txFrequency = (unsigned int)::atoi(value);
else if (::strcmp(key, "RXFrequency") == 0)
m_rxFrequency = (unsigned int)::atoi(value);
else if (::strcmp(key, "Power") == 0)
m_power = (unsigned int)::atoi(value);
else if (::strcmp(key, "Latitude") == 0)
m_latitude = float(::atof(value));
else if (::strcmp(key, "Longitude") == 0)
m_longitude = float(::atof(value));
else if (::strcmp(key, "Height") == 0)
m_height = ::atoi(value);
else if (::strcmp(key, "Location") == 0)
m_location = value;
else if (::strcmp(key, "Description") == 0)
m_description = value;
else if (::strcmp(key, "URL") == 0)
m_url = value;
} else if (section == SECTION_LOG) {
if (::strcmp(key, "FilePath") == 0)
m_logFilePath = value;
else if (::strcmp(key, "FileRoot") == 0)
m_logFileRoot = value;
else if (::strcmp(key, "FileLevel") == 0)
m_logFileLevel = (unsigned int)::atoi(value);
else if (::strcmp(key, "DisplayLevel") == 0)
m_logDisplayLevel = (unsigned int)::atoi(value);
} else if (section == SECTION_APRS_FI) {
if (::strcmp(key, "Enable") == 0)
m_aprsEnabled = ::atoi(value) == 1;
else if (::strcmp(key, "Hostname") == 0)
m_aprsHostname = value;
else if (::strcmp(key, "Port") == 0)
m_aprsPort = (unsigned int)::atoi(value);
else if (::strcmp(key, "Password") == 0)
m_aprsPassword = value;
} else if (section == SECTION_NETWORK) {
if (::strcmp(key, "Enable") == 0)
m_networkEnabled = ::atoi(value) == 1;
else if (::strcmp(key, "Port") == 0)
m_networkPort = (unsigned int)::atoi(value);
else if (::strcmp(key, "Hosts") == 0)
m_networkHosts = value;
else if (::strcmp(key, "Debug") == 0)
m_networkDebug = ::atoi(value) == 1;
}
}
::fclose(fp);
return true;
}
std::string CConf::getCallsign() const
{
return m_callsign;
}
unsigned int CConf::getPort() const
{
return m_port;
}
bool CConf::getDaemon() const
{
return m_daemon;
}
unsigned int CConf::getRxFrequency() const
{
return m_rxFrequency;
}
unsigned int CConf::getTxFrequency() const
{
return m_txFrequency;
}
unsigned int CConf::getPower() const
{
return m_power;
}
float CConf::getLatitude() const
{
return m_latitude;
}
float CConf::getLongitude() const
{
return m_longitude;
}
int CConf::getHeight() const
{
return m_height;
}
std::string CConf::getLocation() const
{
return m_location;
}
std::string CConf::getDescription() const
{
return m_description;
}
std::string CConf::getURL() const
{
return m_url;
}
unsigned int CConf::getLogDisplayLevel() const
{
return m_logDisplayLevel;
}
unsigned int CConf::getLogFileLevel() const
{
return m_logFileLevel;
}
std::string CConf::getLogFilePath() const
{
return m_logFilePath;
}
std::string CConf::getLogFileRoot() const
{
return m_logFileRoot;
}
bool CConf::getAPRSEnabled() const
{
return m_aprsEnabled;
}
std::string CConf::getAPRSHostname() const
{
return m_aprsHostname;
}
unsigned int CConf::getAPRSPort() const
{
return m_aprsPort;
}
std::string CConf::getAPRSPassword() const
{
return m_aprsPassword;
}
bool CConf::getNetworkEnabled() const
{
return m_networkEnabled;
}
unsigned int CConf::getNetworkPort() const
{
return m_networkPort;
}
std::string CConf::getNetworkHosts() const
{
return m_networkHosts;
}
bool CConf::getNetworkDebug() const
{
return m_networkDebug;
}

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YSFGateway/Conf.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(CONF_H)
#define CONF_H
#include <string>
#include <vector>
class CConf
{
public:
CConf(const std::string& file);
~CConf();
bool read();
// The General section
std::string getCallsign() const;
unsigned int getPort() const;
bool getDaemon() const;
// The Info section
unsigned int getRxFrequency() const;
unsigned int getTxFrequency() const;
unsigned int getPower() const;
float getLatitude() const;
float getLongitude() const;
int getHeight() const;
std::string getLocation() const;
std::string getDescription() const;
std::string getURL() const;
// The Log section
unsigned int getLogDisplayLevel() const;
unsigned int getLogFileLevel() const;
std::string getLogFilePath() const;
std::string getLogFileRoot() const;
// The aprs.fi section
bool getAPRSEnabled() const;
std::string getAPRSHostname() const;
unsigned int getAPRSPort() const;
std::string getAPRSPassword() const;
// The Network section
bool getNetworkEnabled() const;
unsigned int getNetworkPort() const;
std::string getNetworkHosts() const;
bool getNetworkDebug() const;
private:
std::string m_file;
std::string m_callsign;
unsigned int m_port;
bool m_daemon;
unsigned int m_rxFrequency;
unsigned int m_txFrequency;
unsigned int m_power;
float m_latitude;
float m_longitude;
int m_height;
std::string m_location;
std::string m_description;
std::string m_url;
unsigned int m_logDisplayLevel;
unsigned int m_logFileLevel;
std::string m_logFilePath;
std::string m_logFileRoot;
bool m_aprsEnabled;
std::string m_aprsHostname;
unsigned int m_aprsPort;
std::string m_aprsPassword;
bool m_networkEnabled;
unsigned int m_networkPort;
std::string m_networkHosts;
bool m_networkDebug;
};
#endif

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YSFGateway/GPS.cpp
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "GPS.h"
#include "YSFPayload.h"
#include "YSFDefines.h"
#include "Utils.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned char NULL_GPS[] = {0x47U, 0x63U, 0x5FU};
const unsigned char SHRT_GPS[] = {0x22U, 0x62U, 0x5FU};
const unsigned char LONG_GPS[] = {0x47U, 0x64U, 0x5FU};
CGPS::CGPS(const std::string& hostname, unsigned int port, const std::string& password) :
m_hostname(hostname),
m_port(port),
m_password(password),
m_buffer(NULL),
m_dt1(false),
m_dt2(false),
m_sent(false)
{
assert(port > 0U);
m_buffer = new unsigned char[20U];
}
CGPS::~CGPS()
{
delete[] m_buffer;
}
void CGPS::data(const unsigned char* source, const unsigned char* data, unsigned char fi, unsigned char dt, unsigned char fn)
{
if (m_sent)
return;
// In case we had the data but not the source callsign
if (m_dt1 && m_dt2) {
transmitGPS(source);
return;
}
CYSFPayload payload;
if (fi == YSF_FI_COMMUNICATIONS && dt == YSF_DT_VD_MODE1) {
if (fn == 3U && !m_dt1) {
bool valid = payload.readVDMode1Data(data, m_buffer);
if (valid) {
m_dt1 = true;
m_dt2 = true;
// If no GPS data then mark it as complete for this transmission
if (::memcmp(m_buffer + 1U, NULL_GPS, 3U) == 0) {
CUtils::dump("Null GPS data received", m_buffer, 20U);
m_sent = true;
}
if (::memcmp(m_buffer + 1U, SHRT_GPS, 3U) == 0) {
CUtils::dump("Short GPS data received", m_buffer, 20U);
transmitGPS(source);
}
if (::memcmp(m_buffer + 1U, LONG_GPS, 3U) == 0) {
CUtils::dump("Long GPS data received", m_buffer, 20U);
transmitGPS(source);
}
}
}
} else if (fi == YSF_FI_COMMUNICATIONS && dt == YSF_DT_VD_MODE2) {
if (fn == 6U && !m_dt1) {
bool valid = payload.readVDMode2Data(data, m_buffer + 0U);
if (valid) {
m_dt1 = true;
// If no GPS data then mark it as complete for this transmission
if (::memcmp(m_buffer + 1U, NULL_GPS, 3U) == 0) {
CUtils::dump("Null GPS data received", m_buffer, 20U);
m_sent = true;
m_dt2 = true;
}
}
}
if (fn == 7U && !m_dt2) {
bool valid = payload.readVDMode2Data(data, m_buffer + 10U);
if (valid) {
m_dt2 = true;
if (::memcmp(m_buffer + 1U, SHRT_GPS, 3U) == 0) {
CUtils::dump("Short GPS data received", m_buffer, 20U);
transmitGPS(source);
}
if (::memcmp(m_buffer + 1U, LONG_GPS, 3U) == 0) {
CUtils::dump("Long GPS data received", m_buffer, 20U);
transmitGPS(source);
}
}
}
}
}
void CGPS::reset()
{
m_dt1 = false;
m_dt2 = false;
m_sent = false;
}
void CGPS::transmitGPS(const unsigned char* source)
{
// We don't know who its from!
if (::memcmp(source, " ", YSF_CALLSIGN_LENGTH) == 0)
return;
m_sent = true;
}

47
YSFGateway/GPS.h
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(GPS_H)
#define GPS_H
#include <string>
class CGPS {
public:
CGPS(const std::string& hostname, unsigned int port, const std::string& password);
~CGPS();
void data(const unsigned char* source, const unsigned char* data, unsigned char fi, unsigned char dt, unsigned char fn);
void clock(unsigned int ms);
void reset();
private:
std::string m_hostname;
unsigned int m_port;
std::string m_password;
unsigned char* m_buffer;
bool m_dt1;
bool m_dt2;
bool m_sent;
void transmitGPS(const unsigned char* source);
};
#endif

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YSFGateway/Golay24128.cpp
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32
YSFGateway/Golay24128.h
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/*
* Copyright (C) 2010,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef Golay24128_H
#define Golay24128_H
class CGolay24128 {
public:
static unsigned int encode23127(unsigned int data);
static unsigned int encode24128(unsigned int data);
static unsigned int decode23127(unsigned int code);
static unsigned int decode24128(unsigned int code);
static unsigned int decode24128(unsigned char* bytes);
};
#endif

99
YSFGateway/Hosts.cpp
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Hosts.h"
#include "Log.h"
#include <cstdio>
#include <cstring>
#include <cctype>
CHosts::CHosts(const std::string& filename) :
m_filename(filename)
{
}
CHosts::~CHosts()
{
}
bool CHosts::read()
{
FILE* fp = ::fopen(m_filename.c_str(), "rt");
if (fp == NULL) {
LogWarning("Cannot open the YSF Hosts file - %s", m_filename.c_str());
return false;
}
char buffer[100U];
while (::fgets(buffer, 100U, fp) != NULL) {
if (buffer[0U] == '#')
continue;
char* p1 = ::strtok(buffer, " \t\r\n");
char* p2 = ::strtok(NULL, " \t\r\n");
char* p3 = ::strtok(NULL, " \t\r\n");
if (p1 != NULL && p2 != NULL && p3 != NULL) {
std::string name = std::string(p1);
std::string address = std::string(p2);
unsigned int port = (unsigned int)::atoi(p3);
CYSFHost* host = new CYSFHost;
host->m_address = address;
host->m_port = port;
m_table[p1] = host;
}
}
::fclose(fp);
size_t size = m_table.size();
if (size == 0U)
return false;
LogInfo("Loaded %u YSF reflectors", size);
return true;
}
CYSFHost* CHosts::find(const std::string& name) const
{
CYSFHost* host = NULL;
try {
host = m_table.at(name);
} catch (...) {
// Nothing to do
}
return host;
}
std::vector<std::string>& CHosts::list() const
{
std::vector<std::string> hosts;
for (std::map<std::string, CYSFHost*>::const_iterator it = m_table.begin(); it != m_table.end(); ++it) {
std::pair<std::string, CYSFHost*> t = *it;
hosts.push_back(t.first);
}
return hosts;
}

48
YSFGateway/Hosts.h
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef Hosts_H
#define Hosts_H
#include <string>
#include <vector>
#include <map>
class CYSFHost {
public:
std::string m_address;
unsigned int m_port;
};
class CHosts {
public:
CHosts(const std::string& filename);
~CHosts();
bool read();
CYSFHost* find(const std::string& name) const;
std::vector<std::string>& list() const;
private:
std::string m_filename;
std::map<std::string, CYSFHost*> m_table;
};
#endif

136
YSFGateway/Log.cpp
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Log.h"
#if defined(_WIN32) || defined(_WIN64)
#include <Windows.h>
#else
#include <sys/time.h>
#endif
#include <cstdio>
#include <cstdlib>
#include <cstdarg>
#include <ctime>
#include <cassert>
#include <cstring>
static unsigned int m_fileLevel = 2U;
static std::string m_filePath;
static std::string m_fileRoot;
static FILE* m_fpLog = NULL;
static unsigned int m_displayLevel = 2U;
static struct tm m_tm;
static char LEVELS[] = " DMIWEF";
static bool LogOpen()
{
if (m_fileLevel == 0U)
return true;
time_t now;
::time(&now);
struct tm* tm = ::gmtime(&now);
if (tm->tm_mday == m_tm.tm_mday && tm->tm_mon == m_tm.tm_mon && tm->tm_year == m_tm.tm_year) {
if (m_fpLog != NULL)
return true;
} else {
if (m_fpLog != NULL)
::fclose(m_fpLog);
}
char filename[50U];
#if defined(_WIN32) || defined(_WIN64)
::sprintf(filename, "%s\\%s-%04d-%02d-%02d.log", m_filePath.c_str(), m_fileRoot.c_str(), tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday);
#else
::sprintf(filename, "%s/%s-%04d-%02d-%02d.log", m_filePath.c_str(), m_fileRoot.c_str(), tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday);
#endif
m_fpLog = ::fopen(filename, "a+t");
m_tm = *tm;
return m_fpLog != NULL;
}
bool LogInitialise(const std::string& filePath, const std::string& fileRoot, unsigned int fileLevel, unsigned int displayLevel)
{
m_filePath = filePath;
m_fileRoot = fileRoot;
m_fileLevel = fileLevel;
m_displayLevel = displayLevel;
return ::LogOpen();
}
void LogFinalise()
{
if (m_fpLog != NULL)
::fclose(m_fpLog);
}
void Log(unsigned int level, const char* fmt, ...)
{
assert(fmt != NULL);
char buffer[300U];
#if defined(_WIN32) || defined(_WIN64)
SYSTEMTIME st;
::GetSystemTime(&st);
::sprintf(buffer, "%c: %04u-%02u-%02u %02u:%02u:%02u.%03u ", LEVELS[level], st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
#else
struct timeval now;
::gettimeofday(&now, NULL);
struct tm* tm = ::gmtime(&now.tv_sec);
::sprintf(buffer, "%c: %04d-%02d-%02d %02d:%02d:%02d.%03lu ", LEVELS[level], tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, now.tv_usec / 1000U);
#endif
va_list vl;
va_start(vl, fmt);
::vsprintf(buffer + ::strlen(buffer), fmt, vl);
va_end(vl);
if (level >= m_fileLevel && m_fileLevel != 0U) {
bool ret = ::LogOpen();
if (!ret)
return;
::fprintf(m_fpLog, "%s\n", buffer);
::fflush(m_fpLog);
}
if (level >= m_displayLevel && m_displayLevel != 0U) {
::fprintf(stdout, "%s\n", buffer);
::fflush(stdout);
}
if (level == 6U) { // Fatal
::fclose(m_fpLog);
exit(1);
}
}

36
YSFGateway/Log.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(LOG_H)
#define LOG_H
#include <string>
#define LogDebug(fmt, ...) Log(1U, fmt, ##__VA_ARGS__)
#define LogMessage(fmt, ...) Log(2U, fmt, ##__VA_ARGS__)
#define LogInfo(fmt, ...) Log(3U, fmt, ##__VA_ARGS__)
#define LogWarning(fmt, ...) Log(4U, fmt, ##__VA_ARGS__)
#define LogError(fmt, ...) Log(5U, fmt, ##__VA_ARGS__)
#define LogFatal(fmt, ...) Log(6U, fmt, ##__VA_ARGS__)
extern void Log(unsigned int level, const char* fmt, ...);
extern bool LogInitialise(const std::string& filePath, const std::string& fileRoot, unsigned int fileLevel, unsigned int displayLevel);
extern void LogFinalise();
#endif

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YSFGateway/Makefile
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CC = gcc
CXX = g++
CFLAGS = -g -O3 -Wall -std=c++0x
LIBS =
LDFLAGS = -g
OBJECTS = Network.o StopWatch.o Timer.o UDPSocket.o Utils.o YSFReflector.o
all: YSFReflector
YSFReflector: $(OBJECTS)
$(CXX) $(OBJECTS) $(CFLAGS) $(LIBS) -o YSFReflector
%.o: %.cpp
$(CXX) $(CFLAGS) -c -o $@ $<
clean:
$(RM) YSFReflector *.o *.d *.bak *~

162
YSFGateway/Network.cpp
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/*
* Copyright (C) 2009-2014,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "YSFDefines.h"
#include "Network.h"
#include "Utils.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned int BUFFER_LENGTH = 200U;
CNetwork::CNetwork(unsigned int port, bool debug) :
m_socket(port),
m_debug(debug),
m_address(),
m_port(0U),
m_buffer(1000U, "YSF Network Buffer"),
m_timer(1000U, 5U)
{
assert(port > 0U);
}
CNetwork::~CNetwork()
{
}
bool CNetwork::open()
{
LogMessage("Opening YSF network connection");
return m_socket.open();
}
void CNetwork::setDestination(const in_addr& address, unsigned int port)
{
m_address = address;
m_port = port;
m_timer.start();
}
void CNetwork::setDestination()
{
m_address.s_addr = INADDR_NONE;
m_port = 0U;
m_timer.stop();
}
bool CNetwork::write(const unsigned char* data)
{
assert(data != NULL);
if (m_port == 0U)
return true;
if (m_debug)
CUtils::dump(1U, "YSF Network Data Sent", data, 155U);
return m_socket.write(data, 155U, m_address, m_port);
}
bool CNetwork::writePoll()
{
if (m_port == 0U)
return true;
unsigned char buffer[20U];
buffer[0] = 'Y';
buffer[1] = 'S';
buffer[2] = 'F';
buffer[3] = 'P';
buffer[4U] = 'G';
buffer[5U] = 'A';
buffer[6U] = 'T';
buffer[7U] = 'E';
buffer[8U] = 'W';
buffer[9U] = 'A';
buffer[10U] = 'Y';
buffer[11U] = ' ';
buffer[12U] = ' ';
buffer[13U] = ' ';
if (m_debug)
CUtils::dump(1U, "YSF Network Poll Sent", buffer, 14U);
return m_socket.write(buffer, 14U, m_address, m_port);
}
void CNetwork::clock(unsigned int ms)
{
m_timer.clock(ms);
if (m_timer.isRunning() && m_timer.hasExpired()) {
writePoll();
m_timer.start();
}
unsigned char buffer[BUFFER_LENGTH];
in_addr address;
unsigned int port;
int length = m_socket.read(buffer, BUFFER_LENGTH, address, port);
if (length <= 0)
return;
if (address.s_addr != m_address.s_addr || port != m_port)
return;
// Handle incoming polls
if (::memcmp(buffer, "YSFP", 4U) == 0) {
// XXX How to handle lost polls?
return;
}
// Invalid packet type?
if (::memcmp(buffer, "YSFD", 4U) != 0)
return;
if (m_debug)
CUtils::dump(1U, "YSF Network Data Received", buffer, length);
m_buffer.addData(buffer, 155U);
}
unsigned int CNetwork::read(unsigned char* data)
{
assert(data != NULL);
if (m_buffer.isEmpty())
return 0U;
m_buffer.getData(data, 155U);
return 155U;
}
void CNetwork::close()
{
m_socket.close();
LogMessage("Closing YSF network connection");
}

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YSFGateway/Network.h
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/*
* Copyright (C) 2009-2014,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef Network_H
#define Network_H
#include "YSFDefines.h"
#include "UDPSocket.h"
#include "RingBuffer.h"
#include "Timer.h"
#include <cstdint>
#include <string>
class CNetwork {
public:
CNetwork(unsigned int port, bool debug);
~CNetwork();
bool open();
void setDestination(const in_addr& address, unsigned int port);
void setDestination();
bool write(const unsigned char* data);
unsigned int read(unsigned char* data);
void clock(unsigned int ms);
void close();
private:
CUDPSocket m_socket;
bool m_debug;
in_addr m_address;
unsigned int m_port;
CRingBuffer<unsigned char> m_buffer;
CTimer m_timer;
bool writePoll();
};
#endif

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/*
* Copyright (C) 2006-2009,2012,2013,2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef RingBuffer_H
#define RingBuffer_H
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
template<class T> class CRingBuffer {
public:
CRingBuffer(unsigned int length, const char* name) :
m_length(length),
m_name(name),
m_buffer(NULL),
m_iPtr(0U),
m_oPtr(0U)
{
assert(length > 0U);
assert(name != NULL);
m_buffer = new T[length];
::memset(m_buffer, 0x00, m_length * sizeof(T));
}
~CRingBuffer()
{
delete[] m_buffer;
}
bool addData(const T* buffer, unsigned int nSamples)
{
if (nSamples >= freeSpace()) {
LogError("**** Overflow in %s ring buffer, %u >= %u", m_name, nSamples, freeSpace());
return false;
}
for (unsigned int i = 0U; i < nSamples; i++) {
m_buffer[m_iPtr++] = buffer[i];
if (m_iPtr == m_length)
m_iPtr = 0U;
}
return true;
}
bool getData(T* buffer, unsigned int nSamples)
{
if (dataSize() < nSamples) {
LogError("**** Underflow in %s ring buffer, %u < %u", m_name, dataSize(), nSamples);
return false;
}
for (unsigned int i = 0U; i < nSamples; i++) {
buffer[i] = m_buffer[m_oPtr++];
if (m_oPtr == m_length)
m_oPtr = 0U;
}
return true;
}
bool peek(T* buffer, unsigned int nSamples)
{
if (dataSize() < nSamples) {
LogError("**** Underflow peek in %s ring buffer, %u < %u", m_name, dataSize(), nSamples);
return false;
}
unsigned int ptr = m_oPtr;
for (unsigned int i = 0U; i < nSamples; i++) {
buffer[i] = m_buffer[ptr++];
if (ptr == m_length)
ptr = 0U;
}
return true;
}
void clear()
{
m_iPtr = 0U;
m_oPtr = 0U;
::memset(m_buffer, 0x00, m_length * sizeof(T));
}
unsigned int freeSpace() const
{
if (m_oPtr == m_iPtr)
return m_length;
if (m_oPtr > m_iPtr)
return m_oPtr - m_iPtr;
return (m_length + m_oPtr) - m_iPtr;
}
unsigned int dataSize() const
{
return m_length - freeSpace();
}
bool hasSpace(unsigned int length) const
{
return freeSpace() > length;
}
bool hasData() const
{
return m_oPtr != m_iPtr;
}
bool isEmpty() const
{
return m_oPtr == m_iPtr;
}
private:
unsigned int m_length;
const char* m_name;
T* m_buffer;
unsigned int m_iPtr;
unsigned int m_oPtr;
};
#endif

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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "StopWatch.h"
#if defined(_WIN32) || defined(_WIN64)
CStopWatch::CStopWatch() :
m_frequency(),
m_start()
{
::QueryPerformanceFrequency(&m_frequency);
}
CStopWatch::~CStopWatch()
{
}
unsigned long CStopWatch::start()
{
::QueryPerformanceCounter(&m_start);
return (unsigned long)(m_start.QuadPart / m_frequency.QuadPart);
}
unsigned int CStopWatch::elapsed()
{
LARGE_INTEGER now;
::QueryPerformanceCounter(&now);
LARGE_INTEGER temp;
temp.QuadPart = (now.QuadPart - m_start.QuadPart) * 1000;
return (unsigned int)(temp.QuadPart / m_frequency.QuadPart);
}
#else
#include <cstdio>
CStopWatch::CStopWatch() :
m_start()
{
}
CStopWatch::~CStopWatch()
{
}
unsigned long CStopWatch::start()
{
::gettimeofday(&m_start, NULL);
return m_start.tv_usec;
}
unsigned int CStopWatch::elapsed()
{
struct timeval now;
::gettimeofday(&now, NULL);
unsigned int elapsed = (now.tv_sec - m_start.tv_sec) * 1000U;
elapsed += now.tv_usec / 1000U;
elapsed -= m_start.tv_usec / 1000U;
return elapsed;
}
#endif

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YSFGateway/StopWatch.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(STOPWATCH_H)
#define STOPWATCH_H
#if defined(_WIN32) || defined(_WIN64)
#include <windows.h>
#else
#include <sys/time.h>
#endif
class CStopWatch
{
public:
CStopWatch();
~CStopWatch();
unsigned long start();
unsigned int elapsed();
private:
#if defined(_WIN32) || defined(_WIN64)
LARGE_INTEGER m_frequency;
LARGE_INTEGER m_start;
#else
struct timeval m_start;
#endif
};
#endif

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/*
* Copyright (C) 2009,2010,2015 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Timer.h"
#include <cstdio>
#include <cassert>
CTimer::CTimer(unsigned int ticksPerSec, unsigned int secs, unsigned int msecs) :
m_ticksPerSec(ticksPerSec),
m_timeout(0U),
m_timer(0U)
{
assert(ticksPerSec > 0U);
if (secs > 0U || msecs > 0U) {
// m_timeout = ((secs * 1000U + msecs) * m_ticksPerSec) / 1000U + 1U;
unsigned long long temp = (secs * 1000ULL + msecs) * m_ticksPerSec;
m_timeout = (unsigned int)(temp / 1000ULL + 1ULL);
}
}
CTimer::~CTimer()
{
}
void CTimer::setTimeout(unsigned int secs, unsigned int msecs)
{
if (secs > 0U || msecs > 0U) {
// m_timeout = ((secs * 1000U + msecs) * m_ticksPerSec) / 1000U + 1U;
unsigned long long temp = (secs * 1000ULL + msecs) * m_ticksPerSec;
m_timeout = (unsigned int)(temp / 1000ULL + 1ULL);
} else {
m_timeout = 0U;
m_timer = 0U;
}
}
unsigned int CTimer::getTimeout() const
{
if (m_timeout == 0U)
return 0U;
return (m_timeout - 1U) / m_ticksPerSec;
}
unsigned int CTimer::getTimer() const
{
if (m_timer == 0U)
return 0U;
return (m_timer - 1U) / m_ticksPerSec;
}

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/*
* Copyright (C) 2009,2010,2011,2014 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef Timer_H
#define Timer_H
class CTimer {
public:
CTimer(unsigned int ticksPerSec, unsigned int secs = 0U, unsigned int msecs = 0U);
~CTimer();
void setTimeout(unsigned int secs, unsigned int msecs = 0U);
unsigned int getTimeout() const;
unsigned int getTimer() const;
unsigned int getRemaining()
{
if (m_timeout == 0U || m_timer == 0U)
return 0U;
if (m_timer >= m_timeout)
return 0U;
return (m_timeout - m_timer) / m_ticksPerSec;
}
bool isRunning()
{
return m_timer > 0U;
}
void start(unsigned int secs, unsigned int msecs = 0U)
{
setTimeout(secs, msecs);
start();
}
void start()
{
if (m_timeout > 0U)
m_timer = 1U;
}
void stop()
{
m_timer = 0U;
}
bool hasExpired()
{
if (m_timeout == 0U || m_timer == 0U)
return false;
if (m_timer >= m_timeout)
return true;
return false;
}
void clock(unsigned int ticks = 1U)
{
if (m_timer > 0U && m_timeout > 0U)
m_timer += ticks;
}
private:
unsigned int m_ticksPerSec;
unsigned int m_timeout;
unsigned int m_timer;
};
#endif

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/*
* Copyright (C) 2006-2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "UDPSocket.h"
#include "Log.h"
#include <cassert>
#if !defined(_WIN32) && !defined(_WIN64)
#include <cerrno>
#include <cstring>
#endif
CUDPSocket::CUDPSocket(const std::string& address, unsigned int port) :
m_address(address),
m_port(port),
m_fd(-1)
{
assert(!address.empty());
#if defined(_WIN32) || defined(_WIN64)
WSAData data;
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
if (wsaRet != 0)
LogError("Error from WSAStartup");
#endif
}
CUDPSocket::CUDPSocket(unsigned int port) :
m_address(),
m_port(port),
m_fd(-1)
{
#if defined(_WIN32) || defined(_WIN64)
WSAData data;
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
if (wsaRet != 0)
LogError("Error from WSAStartup");
#endif
}
CUDPSocket::~CUDPSocket()
{
#if defined(_WIN32) || defined(_WIN64)
::WSACleanup();
#endif
}
in_addr CUDPSocket::lookup(const std::string& hostname)
{
in_addr addr;
#if defined(_WIN32) || defined(_WIN64)
unsigned long address = ::inet_addr(hostname.c_str());
if (address != INADDR_NONE && address != INADDR_ANY) {
addr.s_addr = address;
return addr;
}
struct hostent* hp = ::gethostbyname(hostname.c_str());
if (hp != NULL) {
::memcpy(&addr, hp->h_addr_list[0], sizeof(struct in_addr));
return addr;
}
LogError("Cannot find address for host %s", hostname.c_str());
addr.s_addr = INADDR_NONE;
return addr;
#else
in_addr_t address = ::inet_addr(hostname.c_str());
if (address != in_addr_t(-1)) {
addr.s_addr = address;
return addr;
}
struct hostent* hp = ::gethostbyname(hostname.c_str());
if (hp != NULL) {
::memcpy(&addr, hp->h_addr_list[0], sizeof(struct in_addr));
return addr;
}
LogError("Cannot find address for host %s", hostname.c_str());
addr.s_addr = INADDR_NONE;
return addr;
#endif
}
bool CUDPSocket::open()
{
m_fd = ::socket(PF_INET, SOCK_DGRAM, 0);
if (m_fd < 0) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Cannot create the UDP socket, err: %lu", ::GetLastError());
#else
LogError("Cannot create the UDP socket, err: %d", errno);
#endif
return false;
}
if (m_port > 0U) {
sockaddr_in addr;
::memset(&addr, 0x00, sizeof(sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(m_port);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (!m_address.empty()) {
#if defined(_WIN32) || defined(_WIN64)
addr.sin_addr.s_addr = ::inet_addr(m_address.c_str());
#else
addr.sin_addr.s_addr = ::inet_addr(m_address.c_str());
#endif
if (addr.sin_addr.s_addr == INADDR_NONE) {
LogError("The local address is invalid - %s", m_address.c_str());
return false;
}
}
int reuse = 1;
if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Cannot set the UDP socket option, err: %lu", ::GetLastError());
#else
LogError("Cannot set the UDP socket option, err: %d", errno);
#endif
return false;
}
if (::bind(m_fd, (sockaddr*)&addr, sizeof(sockaddr_in)) == -1) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Cannot bind the UDP address, err: %lu", ::GetLastError());
#else
LogError("Cannot bind the UDP address, err: %d", errno);
#endif
return false;
}
}
return true;
}
int CUDPSocket::read(unsigned char* buffer, unsigned int length, in_addr& address, unsigned int& port)
{
assert(buffer != NULL);
assert(length > 0U);
// Check that the readfrom() won't block
fd_set readFds;
FD_ZERO(&readFds);
#if defined(_WIN32) || defined(_WIN64)
FD_SET((unsigned int)m_fd, &readFds);
#else
FD_SET(m_fd, &readFds);
#endif
// Return immediately
timeval tv;
tv.tv_sec = 0L;
tv.tv_usec = 0L;
int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv);
if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from UDP select, err: %lu", ::GetLastError());
#else
LogError("Error returned from UDP select, err: %d", errno);
#endif
return -1;
}
if (ret == 0)
return 0;
sockaddr_in addr;
#if defined(_WIN32) || defined(_WIN64)
int size = sizeof(sockaddr_in);
#else
socklen_t size = sizeof(sockaddr_in);
#endif
#if defined(_WIN32) || defined(_WIN64)
int len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&addr, &size);
#else
ssize_t len = ::recvfrom(m_fd, (char*)buffer, length, 0, (sockaddr *)&addr, &size);
#endif
if (len <= 0) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from recvfrom, err: %lu", ::GetLastError());
#else
LogError("Error returned from recvfrom, err: %d", errno);
#endif
return -1;
}
address = addr.sin_addr;
port = ntohs(addr.sin_port);
return len;
}
bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const in_addr& address, unsigned int port)
{
assert(buffer != NULL);
assert(length > 0U);
sockaddr_in addr;
::memset(&addr, 0x00, sizeof(sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_addr = address;
addr.sin_port = htons(port);
#if defined(_WIN32) || defined(_WIN64)
int ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&addr, sizeof(sockaddr_in));
#else
ssize_t ret = ::sendto(m_fd, (char *)buffer, length, 0, (sockaddr *)&addr, sizeof(sockaddr_in));
#endif
if (ret < 0) {
#if defined(_WIN32) || defined(_WIN64)
LogError("Error returned from sendto, err: %lu", ::GetLastError());
#else
LogError("Error returned from sendto, err: %d", errno);
#endif
return false;
}
#if defined(_WIN32) || defined(_WIN64)
if (ret != int(length))
return false;
#else
if (ret != ssize_t(length))
return false;
#endif
return true;
}
void CUDPSocket::close()
{
#if defined(_WIN32) || defined(_WIN64)
::closesocket(m_fd);
#else
::close(m_fd);
#endif
}

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/*
* Copyright (C) 2009-2011,2013,2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef UDPSocket_H
#define UDPSocket_H
#include <string>
#if !defined(_WIN32) && !defined(_WIN64)
#include <netdb.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#else
#include <winsock.h>
#endif
class CUDPSocket {
public:
CUDPSocket(const std::string& address, unsigned int port = 0U);
CUDPSocket(unsigned int port = 0U);
~CUDPSocket();
bool open();
int read(unsigned char* buffer, unsigned int length, in_addr& address, unsigned int& port);
bool write(const unsigned char* buffer, unsigned int length, const in_addr& address, unsigned int port);
void close();
static in_addr lookup(const std::string& hostName);
private:
std::string m_address;
unsigned short m_port;
int m_fd;
};
#endif

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/*
* Copyright (C) 2009,2014,2015,2016 Jonathan Naylor, G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "Utils.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
void CUtils::dump(const std::string& title, const unsigned char* data, unsigned int length)
{
assert(data != NULL);
dump(2U, title, data, length);
}
void CUtils::dump(int level, const std::string& title, const unsigned char* data, unsigned int length)
{
assert(data != NULL);
::Log(level, "%s", title.c_str());
unsigned int offset = 0U;
while (length > 0U) {
std::string output;
unsigned int bytes = (length > 16U) ? 16U : length;
for (unsigned i = 0U; i < bytes; i++) {
char temp[10U];
::sprintf(temp, "%02X ", data[offset + i]);
output += temp;
}
for (unsigned int i = bytes; i < 16U; i++)
output += " ";
output += " *";
for (unsigned i = 0U; i < bytes; i++) {
unsigned char c = data[offset + i];
if (::isprint(c))
output += c;
else
output += '.';
}
output += '*';
::Log(level, "%04X: %s", offset, output.c_str());
offset += 16U;
if (length >= 16U)
length -= 16U;
else
length = 0U;
}
}
void CUtils::dump(const std::string& title, const bool* bits, unsigned int length)
{
assert(bits != NULL);
dump(2U, title, bits, length);
}
void CUtils::dump(int level, const std::string& title, const bool* bits, unsigned int length)
{
assert(bits != NULL);
unsigned char bytes[100U];
unsigned int nBytes = 0U;
for (unsigned int n = 0U; n < length; n += 8U, nBytes++)
bitsToByteBE(bits + n, bytes[nBytes]);
dump(level, title, bytes, nBytes);
}
void CUtils::byteToBitsBE(unsigned char byte, bool* bits)
{
assert(bits != NULL);
bits[0U] = (byte & 0x80U) == 0x80U;
bits[1U] = (byte & 0x40U) == 0x40U;
bits[2U] = (byte & 0x20U) == 0x20U;
bits[3U] = (byte & 0x10U) == 0x10U;
bits[4U] = (byte & 0x08U) == 0x08U;
bits[5U] = (byte & 0x04U) == 0x04U;
bits[6U] = (byte & 0x02U) == 0x02U;
bits[7U] = (byte & 0x01U) == 0x01U;
}
void CUtils::byteToBitsLE(unsigned char byte, bool* bits)
{
assert(bits != NULL);
bits[0U] = (byte & 0x01U) == 0x01U;
bits[1U] = (byte & 0x02U) == 0x02U;
bits[2U] = (byte & 0x04U) == 0x04U;
bits[3U] = (byte & 0x08U) == 0x08U;
bits[4U] = (byte & 0x10U) == 0x10U;
bits[5U] = (byte & 0x20U) == 0x20U;
bits[6U] = (byte & 0x40U) == 0x40U;
bits[7U] = (byte & 0x80U) == 0x80U;
}
void CUtils::bitsToByteBE(const bool* bits, unsigned char& byte)
{
assert(bits != NULL);
byte = bits[0U] ? 0x80U : 0x00U;
byte |= bits[1U] ? 0x40U : 0x00U;
byte |= bits[2U] ? 0x20U : 0x00U;
byte |= bits[3U] ? 0x10U : 0x00U;
byte |= bits[4U] ? 0x08U : 0x00U;
byte |= bits[5U] ? 0x04U : 0x00U;
byte |= bits[6U] ? 0x02U : 0x00U;
byte |= bits[7U] ? 0x01U : 0x00U;
}
void CUtils::bitsToByteLE(const bool* bits, unsigned char& byte)
{
assert(bits != NULL);
byte = bits[0U] ? 0x01U : 0x00U;
byte |= bits[1U] ? 0x02U : 0x00U;
byte |= bits[2U] ? 0x04U : 0x00U;
byte |= bits[3U] ? 0x08U : 0x00U;
byte |= bits[4U] ? 0x10U : 0x00U;
byte |= bits[5U] ? 0x20U : 0x00U;
byte |= bits[6U] ? 0x40U : 0x00U;
byte |= bits[7U] ? 0x80U : 0x00U;
}

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YSFGateway/Utils.h
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/*
* Copyright (C) 2009,2014,2015 by Jonathan Naylor, G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef Utils_H
#define Utils_H
#include <string>
class CUtils {
public:
static void dump(const std::string& title, const unsigned char* data, unsigned int length);
static void dump(int level, const std::string& title, const unsigned char* data, unsigned int length);
static void dump(const std::string& title, const bool* bits, unsigned int length);
static void dump(int level, const std::string& title, const bool* bits, unsigned int length);
static void byteToBitsBE(unsigned char byte, bool* bits);
static void byteToBitsLE(unsigned char byte, bool* bits);
static void bitsToByteBE(const bool* bits, unsigned char& byte);
static void bitsToByteLE(const bool* bits, unsigned char& byte);
private:
};
#endif

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YSFGateway/Version.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(VERSION_H)
#define VERSION_H
const char* VERSION = "20160517";
#endif

43
YSFGateway/WiresX.cpp
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "WiresX.h"
#include <cstdio>
#include <cassert>
CWiresX::CWiresX(CNetwork* network) :
m_network(network),
m_reflector()
{
assert(network != NULL);
}
CWiresX::~CWiresX()
{
}
WX_STATUS CWiresX::process(const unsigned char* data, unsigned char fi, unsigned char dt, unsigned char fn)
{
return WXS_NONE;
}
std::string CWiresX::getReflector() const
{
return m_reflector;
}

48
YSFGateway/WiresX.h
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(WIRESX_H)
#define WIRESX_H
#include "Network.h"
#include <string>
enum WX_STATUS {
WXS_NONE,
WXS_CONNECT,
WXS_DISCONNECT
};
class CWiresX {
public:
CWiresX(CNetwork* network);
~CWiresX();
WX_STATUS process(const unsigned char* data, unsigned char fi, unsigned char dt, unsigned char fn);
std::string getReflector() const;
void clock(unsigned int ms);
private:
CNetwork* m_network;
std::string m_reflector;
};
#endif

141
YSFGateway/YSFConvolution.cpp
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/*
* Copyright (C) 2009-2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "YSFConvolution.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned char BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U};
#define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
#define READ_BIT1(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
const uint8_t BRANCH_TABLE1[] = {0U, 0U, 0U, 0U, 1U, 1U, 1U, 1U};
const uint8_t BRANCH_TABLE2[] = {0U, 1U, 1U, 0U, 0U, 1U, 1U, 0U};
const unsigned int NUM_OF_STATES_D2 = 8U;
const unsigned int NUM_OF_STATES = 16U;
const uint32_t M = 2U;
const unsigned int K = 5U;
CYSFConvolution::CYSFConvolution() :
m_metrics1(NULL),
m_metrics2(NULL),
m_oldMetrics(NULL),
m_newMetrics(NULL),
m_decisions(NULL),
m_dp(NULL)
{
m_metrics1 = new uint16_t[16U];
m_metrics2 = new uint16_t[16U];
m_decisions = new uint64_t[180U];
}
CYSFConvolution::~CYSFConvolution()
{
delete[] m_metrics1;
delete[] m_metrics2;
delete[] m_decisions;
}
void CYSFConvolution::start()
{
::memset(m_metrics1, 0x00U, NUM_OF_STATES * sizeof(uint16_t));
::memset(m_metrics2, 0x00U, NUM_OF_STATES * sizeof(uint16_t));
m_oldMetrics = m_metrics1;
m_newMetrics = m_metrics2;
m_dp = m_decisions;
}
void CYSFConvolution::decode(uint8_t s0, uint8_t s1)
{
*m_dp = 0U;
for (uint8_t i = 0U; i < NUM_OF_STATES_D2; i++) {
uint8_t j = i * 2U;
uint16_t metric = (BRANCH_TABLE1[i] ^ s0) + (BRANCH_TABLE2[i] ^ s1);
uint16_t m0 = m_oldMetrics[i] + metric;
uint16_t m1 = m_oldMetrics[i + NUM_OF_STATES_D2] + (M - metric);
uint8_t decision0 = (m0 >= m1) ? 1U : 0U;
m_newMetrics[j + 0U] = decision0 != 0U ? m1 : m0;
m0 = m_oldMetrics[i] + (M - metric);
m1 = m_oldMetrics[i + NUM_OF_STATES_D2] + metric;
uint8_t decision1 = (m0 >= m1) ? 1U : 0U;
m_newMetrics[j + 1U] = decision1 != 0U ? m1 : m0;
*m_dp |= (uint64_t(decision1) << (j + 1U)) | (uint64_t(decision0) << (j + 0U));
}
++m_dp;
assert((m_dp - m_decisions) <= 180);
uint16_t* tmp = m_oldMetrics;
m_oldMetrics = m_newMetrics;
m_newMetrics = tmp;
}
void CYSFConvolution::chainback(unsigned char* out, unsigned int nBits)
{
assert(out != NULL);
uint32_t state = 0U;
while (nBits-- > 0) {
--m_dp;
uint32_t i = state >> (9 - K);
uint8_t bit = uint8_t(*m_dp >> i) & 1;
state = (bit << 7) | (state >> 1);
WRITE_BIT1(out, nBits, bit != 0U);
}
}
void CYSFConvolution::encode(const unsigned char* in, unsigned char* out, unsigned int nBits) const
{
assert(in != NULL);
assert(out != NULL);
assert(nBits > 0U);
uint8_t d1 = 0U, d2 = 0U, d3 = 0U, d4 = 0U;
uint32_t k = 0U;
for (unsigned int i = 0U; i < nBits; i++) {
uint8_t d = READ_BIT1(in, i) ? 1U : 0U;
uint8_t g1 = (d + d3 + d4) & 1;
uint8_t g2 = (d + d1 + d2 + d4) & 1;
d4 = d3;
d3 = d2;
d2 = d1;
d1 = d;
WRITE_BIT1(out, k, g1 != 0U);
k++;
WRITE_BIT1(out, k, g2 != 0U);
k++;
}
}

47
YSFGateway/YSFConvolution.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(YSFConvolution_H)
#define YSFConvolution_H
#include "YSFConvolution.h"
#include <cstdint>
class CYSFConvolution {
public:
CYSFConvolution();
~CYSFConvolution();
void start();
void decode(uint8_t s0, uint8_t s1);
void chainback(unsigned char* out, unsigned int nBits);
void encode(const unsigned char* in, unsigned char* out, unsigned int nBits) const;
private:
uint16_t* m_metrics1;
uint16_t* m_metrics2;
uint16_t* m_oldMetrics;
uint16_t* m_newMetrics;
uint64_t* m_decisions;
uint64_t* m_dp;
};
#endif

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YSFGateway/YSFDefines.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(YSFDefines_H)
#define YSFDefines_H
const unsigned int YSF_FRAME_LENGTH_BYTES = 120U;
const unsigned char YSF_SYNC_BYTES[] = {0xD4U, 0x71U, 0xC9U, 0x63U, 0x4DU};
const unsigned int YSF_SYNC_LENGTH_BYTES = 5U;
const unsigned int YSF_FICH_LENGTH_BYTES = 25U;
const unsigned char YSF_SYNC_OK = 0x01U;
const unsigned int YSF_CALLSIGN_LENGTH = 10U;
const unsigned char YSF_FI_HEADER = 0x00U;
const unsigned char YSF_FI_COMMUNICATIONS = 0x01U;
const unsigned char YSF_FI_TERMINATOR = 0x02U;
const unsigned char YSF_FI_TEST = 0x03U;
const unsigned char YSF_DT_VD_MODE1 = 0x00U;
const unsigned char YSF_DT_DATA_FR_MODE = 0x01U;
const unsigned char YSF_DT_VD_MODE2 = 0x02U;
const unsigned char YSF_DT_VOICE_FR_MODE = 0x03U;
const unsigned char YSF_CM_GROUP = 0x00U;
const unsigned char YSF_CM_INDIVIDUAL = 0x03U;
const unsigned char YSF_MR_NOT_BUSY = 0x01U;
const unsigned char YSF_MR_BUSY = 0x02U;
#endif

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/*
* Copyright (C) 2009-2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "YSFConvolution.h"
#include "YSFDefines.h"
#include "Golay24128.h"
#include "YSFFICH.h"
#include "CRC.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned char BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U};
#define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
#define READ_BIT1(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
const unsigned int INTERLEAVE_TABLE[] = {
0U, 40U, 80U, 120U, 160U,
2U, 42U, 82U, 122U, 162U,
4U, 44U, 84U, 124U, 164U,
6U, 46U, 86U, 126U, 166U,
8U, 48U, 88U, 128U, 168U,
10U, 50U, 90U, 130U, 170U,
12U, 52U, 92U, 132U, 172U,
14U, 54U, 94U, 134U, 174U,
16U, 56U, 96U, 136U, 176U,
18U, 58U, 98U, 138U, 178U,
20U, 60U, 100U, 140U, 180U,
22U, 62U, 102U, 142U, 182U,
24U, 64U, 104U, 144U, 184U,
26U, 66U, 106U, 146U, 186U,
28U, 68U, 108U, 148U, 188U,
30U, 70U, 110U, 150U, 190U,
32U, 72U, 112U, 152U, 192U,
34U, 74U, 114U, 154U, 194U,
36U, 76U, 116U, 156U, 196U,
38U, 78U, 118U, 158U, 198U};
CYSFFICH::CYSFFICH() :
m_fich(NULL)
{
m_fich = new unsigned char[6U];
}
CYSFFICH::~CYSFFICH()
{
delete[] m_fich;
}
bool CYSFFICH::decode(const unsigned char* bytes)
{
assert(bytes != NULL);
// Skip the sync bytes
bytes += YSF_SYNC_LENGTH_BYTES;
CYSFConvolution viterbi;
viterbi.start();
// Deinterleave the FICH and send bits to the Viterbi decoder
for (unsigned int i = 0U; i < 100U; i++) {
unsigned int n = INTERLEAVE_TABLE[i];
uint8_t s0 = READ_BIT1(bytes, n) ? 1U : 0U;
n++;
uint8_t s1 = READ_BIT1(bytes, n) ? 1U : 0U;
viterbi.decode(s0, s1);
}
unsigned char output[13U];
viterbi.chainback(output, 96U);
unsigned int b0 = CGolay24128::decode24128(output + 0U);
unsigned int b1 = CGolay24128::decode24128(output + 3U);
unsigned int b2 = CGolay24128::decode24128(output + 6U);
unsigned int b3 = CGolay24128::decode24128(output + 9U);
m_fich[0U] = (b0 >> 4) & 0xFFU;
m_fich[1U] = ((b0 << 4) & 0xF0U) | ((b1 >> 8) & 0x0FU);
m_fich[2U] = (b1 >> 0) & 0xFFU;
m_fich[3U] = (b2 >> 4) & 0xFFU;
m_fich[4U] = ((b2 << 4) & 0xF0U) | ((b3 >> 8) & 0x0FU);
m_fich[5U] = (b3 >> 0) & 0xFFU;
return CCRC::checkCCITT162(m_fich, 6U);
}
void CYSFFICH::encode(unsigned char* bytes)
{
assert(bytes != NULL);
// Skip the sync bytes
bytes += YSF_SYNC_LENGTH_BYTES;
CCRC::addCCITT162(m_fich, 6U);
unsigned int b0 = ((m_fich[0U] << 4) & 0xFF0U) | ((m_fich[1U] >> 4) & 0x00FU);
unsigned int b1 = ((m_fich[1U] << 8) & 0xF00U) | ((m_fich[2U] >> 0) & 0x0FFU);
unsigned int b2 = ((m_fich[3U] << 4) & 0xFF0U) | ((m_fich[4U] >> 4) & 0x00FU);
unsigned int b3 = ((m_fich[4U] << 8) & 0xF00U) | ((m_fich[5U] >> 0) & 0x0FFU);
unsigned int c0 = CGolay24128::encode24128(b0);
unsigned int c1 = CGolay24128::encode24128(b1);
unsigned int c2 = CGolay24128::encode24128(b2);
unsigned int c3 = CGolay24128::encode24128(b3);
unsigned char conv[13U];
conv[0U] = (c0 >> 16) & 0xFFU;
conv[1U] = (c0 >> 8) & 0xFFU;
conv[2U] = (c0 >> 0) & 0xFFU;
conv[3U] = (c1 >> 16) & 0xFFU;
conv[4U] = (c1 >> 8) & 0xFFU;
conv[5U] = (c1 >> 0) & 0xFFU;
conv[6U] = (c2 >> 16) & 0xFFU;
conv[7U] = (c2 >> 8) & 0xFFU;
conv[8U] = (c2 >> 0) & 0xFFU;
conv[9U] = (c3 >> 16) & 0xFFU;
conv[10U] = (c3 >> 8) & 0xFFU;
conv[11U] = (c3 >> 0) & 0xFFU;
conv[12U] = 0x00U;
CYSFConvolution convolution;
unsigned char convolved[25U];
convolution.encode(conv, convolved, 100U);
unsigned int j = 0U;
for (unsigned int i = 0U; i < 100U; i++) {
unsigned int n = INTERLEAVE_TABLE[i];
bool s0 = READ_BIT1(convolved, j) != 0U;
j++;
bool s1 = READ_BIT1(convolved, j) != 0U;
j++;
WRITE_BIT1(bytes, n, s0);
n++;
WRITE_BIT1(bytes, n, s1);
}
}
unsigned char CYSFFICH::getFI() const
{
return (m_fich[0U] >> 6) & 0x03U;
}
unsigned char CYSFFICH::getCM() const
{
return (m_fich[0U] >> 2) & 0x03U;
}
unsigned char CYSFFICH::getFN() const
{
return (m_fich[1U] >> 3) & 0x07U;
}
unsigned char CYSFFICH::getFT() const
{
return m_fich[1U] & 0x07U;
}
unsigned char CYSFFICH::getDT() const
{
return m_fich[2U] & 0x03U;
}
void CYSFFICH::setMR(unsigned char mr)
{
m_fich[2U] &= 0xC7U;
m_fich[2U] |= (mr << 3) & 0x38U;
}
void CYSFFICH::setVoIP(bool on)
{
if (on)
m_fich[2U] |= 0x04U;
else
m_fich[2U] &= 0xFBU;
}

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YSFGateway/YSFFICH.h
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/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(YSFFICH_H)
#define YSFFICH_H
class CYSFFICH {
public:
CYSFFICH();
~CYSFFICH();
bool decode(const unsigned char* bytes);
void encode(unsigned char* bytes);
unsigned char getFI() const;
unsigned char getCM() const;
unsigned char getFN() const;
unsigned char getFT() const;
unsigned char getDT() const;
void setMR(unsigned char mr);
void setVoIP(bool set);
private:
unsigned char* m_fich;
};
#endif

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YSFGateway/YSFGateway.cpp
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "YSFGateway.h"
#include "StopWatch.h"
#include "Version.h"
#include "YSFFICH.h"
#include "Timer.h"
#include "Log.h"
#if defined(_WIN32) || defined(_WIN64)
#include <Windows.h>
#else
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <pwd.h>
#endif
#if defined(_WIN32) || defined(_WIN64)
const char* DEFAULT_INI_FILE = "YSFGateway.ini";
#else
const char* DEFAULT_INI_FILE = "/etc/YSFGateway.ini";
#endif
#include <cstdio>
#include <cstdlib>
#include <cstring>
int main(int argc, char** argv)
{
const char* iniFile = DEFAULT_INI_FILE;
if (argc > 1) {
for (int currentArg = 1; currentArg < argc; ++currentArg) {
std::string arg = argv[currentArg];
if ((arg == "-v") || (arg == "--version")) {
::fprintf(stdout, "YSFGateway version %s\n", VERSION);
return 0;
} else if (arg.substr(0, 1) == "-") {
::fprintf(stderr, "Usage: YSFGateway [-v|--version] [filename]\n");
return 1;
} else {
iniFile = argv[currentArg];
}
}
}
CYSFGateway* gateway = new CYSFGateway(std::string(iniFile));
int ret = gateway->run();
delete gateway;
return ret;
}
CYSFGateway::CYSFGateway(const std::string& configFile) :
m_conf(configFile),
m_gps(NULL),
m_hosts(NULL),
m_wiresX(NULL),
m_netNetwork(NULL),
m_linked(false)
{
}
CYSFGateway::~CYSFGateway()
{
}
int CYSFGateway::run()
{
bool ret = m_conf.read();
if (!ret) {
::fprintf(stderr, "YSFGateway: cannot read the .ini file\n");
return 1;
}
ret = ::LogInitialise(m_conf.getLogFilePath(), m_conf.getLogFileRoot(), m_conf.getLogFileLevel(), m_conf.getLogDisplayLevel());
if (!ret) {
::fprintf(stderr, "YSFGateway: unable to open the log file\n");
return 1;
}
#if !defined(_WIN32) && !defined(_WIN64)
bool m_daemon = m_conf.getDaemon();
if (m_daemon) {
// Create new process
pid_t pid = ::fork();
if (pid == -1) {
::LogWarning("Couldn't fork() , exiting");
return -1;
} else if (pid != 0)
exit(EXIT_SUCCESS);
// Create new session and process group
if (::setsid() == -1) {
::LogWarning("Couldn't setsid(), exiting");
return -1;
}
// Set the working directory to the root directory
if (::chdir("/") == -1) {
::LogWarning("Couldn't cd /, exiting");
return -1;
}
::close(STDIN_FILENO);
::close(STDOUT_FILENO);
::close(STDERR_FILENO);
//If we are currently root...
if (getuid() == 0) {
struct passwd* user = ::getpwnam("mmdvm");
if (user == NULL) {
::LogError("Could not get the mmdvm user, exiting");
return -1;
}
uid_t mmdvm_uid = user->pw_uid;
gid_t mmdvm_gid = user->pw_gid;
//Set user and group ID's to mmdvm:mmdvm
if (setgid(mmdvm_gid) != 0) {
::LogWarning("Could not set mmdvm GID, exiting");
return -1;
}
if (setuid(mmdvm_uid) != 0) {
::LogWarning("Could not set mmdvm UID, exiting");
return -1;
}
//Double check it worked (AKA Paranoia)
if (setuid(0) != -1) {
::LogWarning("It's possible to regain root - something is wrong!, exiting");
return -1;
}
}
}
#endif
std::string fileName = m_conf.getNetworkHosts();
m_hosts = new CHosts(fileName);
m_hosts->read();
bool debug = m_conf.getNetworkDebug();
unsigned int rptPort = m_conf.getPort();
unsigned int netPort = m_conf.getNetworkPort();
CNetwork rptNetwork(rptPort, debug);
m_netNetwork = new CNetwork(netPort, debug);
ret = rptNetwork.open();
if (!ret) {
::LogError("Cannot open the repeater network port");
return 1;
}
ret = m_netNetwork->open();
if (!ret) {
::LogError("Cannot open the reflector network port");
return 1;
}
bool networkEnabled = m_conf.getNetworkEnabled();
if (networkEnabled)
m_wiresX = new CWiresX(&rptNetwork);
CStopWatch stopWatch;
stopWatch.start();
LogMessage("Starting YSFGateway-%s", VERSION);
createGPS();
CTimer watchdogTimer(1000U, 0U, 500U);
for (;;) {
unsigned char buffer[200U];
unsigned int len = rptNetwork.read(buffer);
if (len > 0U) {
watchdogTimer.start();
CYSFFICH fich;
bool valid = fich.decode(buffer + 35U);
if (valid) {
unsigned char fi = fich.getFI();
unsigned char dt = fich.getDT();
unsigned char fn = fich.getFN();
if (m_wiresX != NULL) {
WX_STATUS status = m_wiresX->process(buffer + 35U, fi, dt, fn);
switch (status) {
case WXS_CONNECT:
connect(buffer + 14U);
break;
case WXS_DISCONNECT:
LogMessage("Disconnect has been requested by %10.10s", buffer + 14U);
m_netNetwork->setDestination();
m_linked = false;
break;
default:
break;
}
}
if (m_gps != NULL)
m_gps->data(buffer + 14U, buffer + 35U, fi, dt, fn);
if (fi == YSF_FI_TERMINATOR) {
if (m_gps != NULL)
m_gps->reset();
watchdogTimer.stop();
}
}
if (networkEnabled && m_linked)
m_netNetwork->write(buffer);
}
len = m_netNetwork->read(buffer);
if (len > 0U) {
if (networkEnabled && m_linked)
rptNetwork.write(buffer);
}
unsigned int ms = stopWatch.elapsed();
stopWatch.start();
rptNetwork.clock(ms);
m_netNetwork->clock(ms);
if (m_gps != NULL)
m_gps->clock(ms);
if (m_wiresX != NULL)
m_wiresX->clock(ms);
watchdogTimer.clock(ms);
if (watchdogTimer.isRunning() && watchdogTimer.hasExpired()) {
LogMessage("Network watchdog has expired");
if (m_gps != NULL)
m_gps->reset();
watchdogTimer.stop();
}
if (ms < 5U) {
#if defined(_WIN32) || defined(_WIN64)
::Sleep(5UL); // 5ms
#else
::usleep(5000); // 5ms
#endif
}
}
rptNetwork.close();
m_netNetwork->close();
delete m_gps;
delete m_hosts;
delete m_netNetwork;
delete m_wiresX;
::LogFinalise();
return 0;
}
void CYSFGateway::createGPS()
{
if (!m_conf.getAPRSEnabled())
return;
std::string hostname = m_conf.getAPRSHostname();
unsigned int port = m_conf.getAPRSPort();
std::string password = m_conf.getAPRSPassword();
m_gps = new CGPS(hostname, port, password);
}
bool CYSFGateway::connect(const unsigned char* source)
{
std::string reflector = m_wiresX->getReflector();
CYSFHost* host = m_hosts->find(reflector);
if (host == NULL) {
LogMessage("Request made for invalid reflector %s by %10.10s", reflector.c_str(), source);
return false;
}
std::string address = host->m_address;
unsigned int port = host->m_port;
in_addr addr = CUDPSocket::lookup(address);
if (addr.s_addr == INADDR_NONE)
return false;
LogMessage("Connect to %s has been requested by %10.10s", reflector.c_str(), source);
m_netNetwork->setDestination(addr, port);
m_linked = true;
}

50
YSFGateway/YSFGateway.h
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/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(YSFGateway_H)
#define YSFGateway_H
#include "Network.h"
#include "WiresX.h"
#include "Hosts.h"
#include "Conf.h"
#include "GPS.h"
#include <string>
class CYSFGateway
{
public:
CYSFGateway(const std::string& configFile);
~CYSFGateway();
int run();
private:
CConf m_conf;
CGPS* m_gps;
CHosts* m_hosts;
CWiresX* m_wiresX;
CNetwork* m_netNetwork;
bool m_linked;
void createGPS();
bool connect(const unsigned char* source);
};
#endif

35
YSFGateway/YSFGateway.ini
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[General]
Callsign=G9BF
Node=123456
Port=4200
Daemon=0
[Info]
RXFrequency=435000000
TXFrequency=435000000
Power=1
Latitude=0.0
Longitude=0.0
Height=0
Location=Nowhere
Description=Multi-Mode Repeater
URL=www.google.co.uk
[Log]
# Logging levels, 0=No logging
DisplayLevel=1
FileLevel=1
FilePath=.
FileRoot=YSFGateway
[aprs.fi]
Enable=1
Server=
Port=
Password=9999
[Network]
Enable=1
Port=32767
Hosts=./YSFHosts.txt
Debug=0

190
YSFGateway/YSFGateway.vcxproj
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<ItemGroup>
<ClInclude Include="Conf.h" />
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<ClInclude Include="GPS.h" />
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<ClInclude Include="Network.h" />
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6
YSFGateway/YSFHosts.txt
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#
# These are the allowed hosts for this node
#
# The format is <name> <address/name> <port>
#
YSF001 c4fm.duckdns.org 420000

272
YSFGateway/YSFPayload.cpp
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/*
* Copyright (C) 2016 Jonathan Naylor, G4KLX
* Copyright (C) 2016 Mathias Weyland, HB9FRV
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "YSFConvolution.h"
#include "YSFPayload.h"
#include "YSFDefines.h"
#include "Utils.h"
#include "CRC.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
#include <cstdint>
const unsigned int INTERLEAVE_TABLE_9_20[] = {
0U, 40U, 80U, 120U, 160U, 200U, 240U, 280U, 320U,
2U, 42U, 82U, 122U, 162U, 202U, 242U, 282U, 322U,
4U, 44U, 84U, 124U, 164U, 204U, 244U, 284U, 324U,
6U, 46U, 86U, 126U, 166U, 206U, 246U, 286U, 326U,
8U, 48U, 88U, 128U, 168U, 208U, 248U, 288U, 328U,
10U, 50U, 90U, 130U, 170U, 210U, 250U, 290U, 330U,
12U, 52U, 92U, 132U, 172U, 212U, 252U, 292U, 332U,
14U, 54U, 94U, 134U, 174U, 214U, 254U, 294U, 334U,
16U, 56U, 96U, 136U, 176U, 216U, 256U, 296U, 336U,
18U, 58U, 98U, 138U, 178U, 218U, 258U, 298U, 338U,
20U, 60U, 100U, 140U, 180U, 220U, 260U, 300U, 340U,
22U, 62U, 102U, 142U, 182U, 222U, 262U, 302U, 342U,
24U, 64U, 104U, 144U, 184U, 224U, 264U, 304U, 344U,
26U, 66U, 106U, 146U, 186U, 226U, 266U, 306U, 346U,
28U, 68U, 108U, 148U, 188U, 228U, 268U, 308U, 348U,
30U, 70U, 110U, 150U, 190U, 230U, 270U, 310U, 350U,
32U, 72U, 112U, 152U, 192U, 232U, 272U, 312U, 352U,
34U, 74U, 114U, 154U, 194U, 234U, 274U, 314U, 354U,
36U, 76U, 116U, 156U, 196U, 236U, 276U, 316U, 356U,
38U, 78U, 118U, 158U, 198U, 238U, 278U, 318U, 358U};
const unsigned int INTERLEAVE_TABLE_5_20[] = {
0U, 40U, 80U, 120U, 160U,
2U, 42U, 82U, 122U, 162U,
4U, 44U, 84U, 124U, 164U,
6U, 46U, 86U, 126U, 166U,
8U, 48U, 88U, 128U, 168U,
10U, 50U, 90U, 130U, 170U,
12U, 52U, 92U, 132U, 172U,
14U, 54U, 94U, 134U, 174U,
16U, 56U, 96U, 136U, 176U,
18U, 58U, 98U, 138U, 178U,
20U, 60U, 100U, 140U, 180U,
22U, 62U, 102U, 142U, 182U,
24U, 64U, 104U, 144U, 184U,
26U, 66U, 106U, 146U, 186U,
28U, 68U, 108U, 148U, 188U,
30U, 70U, 110U, 150U, 190U,
32U, 72U, 112U, 152U, 192U,
34U, 74U, 114U, 154U, 194U,
36U, 76U, 116U, 156U, 196U,
38U, 78U, 118U, 158U, 198U};
// This one differs from the others in that it interleaves bits and not dibits
const unsigned int INTERLEAVE_TABLE_26_4[] = {
0U, 4U, 8U, 12U, 16U, 20U, 24U, 28U, 32U, 36U, 40U, 44U, 48U, 52U, 56U, 60U, 64U, 68U, 72U, 76U, 80U, 84U, 88U, 92U, 96U, 100U,
1U, 5U, 9U, 13U, 17U, 21U, 25U, 29U, 33U, 37U, 41U, 45U, 49U, 53U, 57U, 61U, 65U, 69U, 73U, 77U, 81U, 85U, 89U, 93U, 97U, 101U,
2U, 6U, 10U, 14U, 18U, 22U, 26U, 30U, 34U, 38U, 42U, 46U, 50U, 54U, 58U, 62U, 66U, 70U, 74U, 78U, 82U, 86U, 90U, 94U, 98U, 102U,
3U, 7U, 11U, 15U, 19U, 23U, 27U, 31U, 35U, 39U, 43U, 47U, 51U, 55U, 59U, 63U, 67U, 71U, 75U, 79U, 83U, 87U, 91U, 95U, 99U, 103U};
const unsigned char WHITENING_DATA[] = {0x93U, 0xD7U, 0x51U, 0x21U, 0x9CU, 0x2FU, 0x6CU, 0xD0U, 0xEFU, 0x0FU,
0xF8U, 0x3DU, 0xF1U, 0x73U, 0x20U, 0x94U, 0xEDU, 0x1EU, 0x7CU, 0xD8U};
const unsigned char BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U};
#define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
#define READ_BIT1(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
CYSFPayload::CYSFPayload()
{
}
CYSFPayload::~CYSFPayload()
{
}
bool CYSFPayload::readVDMode1Data(const unsigned char* data, unsigned char* dt)
{
assert(data != NULL);
assert(dt != NULL);
data += YSF_SYNC_LENGTH_BYTES + YSF_FICH_LENGTH_BYTES;
unsigned char dch[45U];
const unsigned char* p1 = data;
unsigned char* p2 = dch;
for (unsigned int i = 0U; i < 5U; i++) {
::memcpy(p2, p1, 9U);
p1 += 18U; p2 += 9U;
}
CYSFConvolution conv;
conv.start();
for (unsigned int i = 0U; i < 180U; i++) {
unsigned int n = INTERLEAVE_TABLE_9_20[i];
uint8_t s0 = READ_BIT1(dch, n) ? 1U : 0U;
n++;
uint8_t s1 = READ_BIT1(dch, n) ? 1U : 0U;
conv.decode(s0, s1);
}
unsigned char output[23U];
conv.chainback(output, 176U);
bool ret = CCRC::checkCCITT162(output, 22U);
if (ret) {
for (unsigned int i = 0U; i < 20U; i++)
output[i] ^= WHITENING_DATA[i];
CUtils::dump(1U, "V/D Mode 1 Data", output, 20U);
::memcpy(dt, output, 20U);
}
return ret;
}
bool CYSFPayload::readVDMode2Data(const unsigned char* data, unsigned char* dt)
{
assert(data != NULL);
assert(dt != NULL);
data += YSF_SYNC_LENGTH_BYTES + YSF_FICH_LENGTH_BYTES;
unsigned char dch[25U];
const unsigned char* p1 = data;
unsigned char* p2 = dch;
for (unsigned int i = 0U; i < 5U; i++) {
::memcpy(p2, p1, 5U);
p1 += 18U; p2 += 5U;
}
CYSFConvolution conv;
conv.start();
for (unsigned int i = 0U; i < 100U; i++) {
unsigned int n = INTERLEAVE_TABLE_5_20[i];
uint8_t s0 = READ_BIT1(dch, n) ? 1U : 0U;
n++;
uint8_t s1 = READ_BIT1(dch, n) ? 1U : 0U;
conv.decode(s0, s1);
}
unsigned char output[13U];
conv.chainback(output, 96U);
bool ret = CCRC::checkCCITT162(output, 12U);
if (ret) {
for (unsigned int i = 0U; i < 10U; i++)
output[i] ^= WHITENING_DATA[i];
CUtils::dump(1U, "V/D Mode 2 Data", output, YSF_CALLSIGN_LENGTH);
::memcpy(dt, output, YSF_CALLSIGN_LENGTH);
}
return ret;
}
bool CYSFPayload::readDataFRModeData1(const unsigned char* data, unsigned char* dt)
{
assert(data != NULL);
assert(dt != NULL);
data += YSF_SYNC_LENGTH_BYTES + YSF_FICH_LENGTH_BYTES;
unsigned char dch[45U];
const unsigned char* p1 = data;
unsigned char* p2 = dch;
for (unsigned int i = 0U; i < 5U; i++) {
::memcpy(p2, p1, 9U);
p1 += 18U; p2 += 9U;
}
CYSFConvolution conv;
conv.start();
for (unsigned int i = 0U; i < 180U; i++) {
unsigned int n = INTERLEAVE_TABLE_9_20[i];
uint8_t s0 = READ_BIT1(dch, n) ? 1U : 0U;
n++;
uint8_t s1 = READ_BIT1(dch, n) ? 1U : 0U;
conv.decode(s0, s1);
}
unsigned char output[23U];
conv.chainback(output, 176U);
bool ret = CCRC::checkCCITT162(output, 22U);
if (ret) {
for (unsigned int i = 0U; i < 20U; i++)
output[i] ^= WHITENING_DATA[i];
CUtils::dump(1U, "FR Mode Data 1", output, 20U);
::memcpy(dt, output, 20U);
}
return ret;
}
bool CYSFPayload::readDataFRModeData2(const unsigned char* data, unsigned char* dt)
{
assert(data != NULL);
assert(dt != NULL);
data += YSF_SYNC_LENGTH_BYTES + YSF_FICH_LENGTH_BYTES;
unsigned char dch[45U];
const unsigned char* p1 = data + 9U;
unsigned char* p2 = dch;
for (unsigned int i = 0U; i < 5U; i++) {
::memcpy(p2, p1, 9U);
p1 += 18U; p2 += 9U;
}
CYSFConvolution conv;
conv.start();
for (unsigned int i = 0U; i < 180U; i++) {
unsigned int n = INTERLEAVE_TABLE_9_20[i];
uint8_t s0 = READ_BIT1(dch, n) ? 1U : 0U;
n++;
uint8_t s1 = READ_BIT1(dch, n) ? 1U : 0U;
conv.decode(s0, s1);
}
unsigned char output[23U];
conv.chainback(output, 176U);
bool ret = CCRC::checkCCITT162(output, 22U);
if (ret) {
for (unsigned int i = 0U; i < 20U; i++)
output[i] ^= WHITENING_DATA[i];
CUtils::dump(1U, "FR Mode Data 2", output, 20U);
::memcpy(dt, output, 20U);
}
return ret;
}

39
YSFGateway/YSFPayload.h
Unescape View File

@ -0,0 +1,39 @@
/*
* Copyright (C) 2016 by Jonathan Naylor G4KLX
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(YSFPayload_H)
#define YSFPayload_H
#include <string>
class CYSFPayload {
public:
CYSFPayload();
~CYSFPayload();
bool readVDMode1Data(const unsigned char* data, unsigned char* dt);
bool readVDMode2Data(const unsigned char* data, unsigned char* dt);
bool readDataFRModeData1(const unsigned char* data, unsigned char* dt);
bool readDataFRModeData2(const unsigned char* data, unsigned char* dt);
private:
};
#endif
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