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QnetGateway/QnetGateway.cpp

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/*
* Copyright (C) 2010 by Scott Lawson KI4LKF
* Copyright (C) 2017-2019 by Thomas Early N7TAE
*
* 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.
*/
/* by KI4LKF, N7TAE */
/*
QnetGateway is a dstar G2 gateway, using irc routing
adapted from the OpenG2 G2 gateway
Version 2.61 or higher will use ONLY the irc mechanism of routing
and it will NOT use any local Postgres databases or any TRUST(s)
*/
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <math.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <regex.h>
#include <future>
#include <exception>
#include <string>
#include <thread>
#include <chrono>
#include <map>
#include "IRCDDB.h"
#include "IRCutils.h"
#include "versions.h"
#include "QnetConfigure.h"
#include "QnetGateway.h"
extern void dstar_dv_init();
extern int dstar_dv_decode(const unsigned char *d, int data[3]);
static std::atomic<bool> keep_running(true);
/* signal catching function */
static void sigCatch(int signum)
{
/* do NOT do any serious work here */
if ((signum == SIGTERM) || (signum == SIGINT))
keep_running = false;
return;
}
void CQnetGateway::set_dest_rptr(int mod_ndx, char *dest_rptr)
{
FILE *statusfp = fopen(status_file.c_str(), "r");
if (statusfp) {
setvbuf(statusfp, (char *)NULL, _IOLBF, 0);
char statusbuf[1024];
while (fgets(statusbuf, 1020, statusfp) != NULL) {
char *p = strchr(statusbuf, '\r');
if (p)
*p = '\0';
p = strchr(statusbuf, '\n');
if (p)
*p = '\0';
const char *delim = ",";
char *saveptr = NULL;
char *status_local_mod = strtok_r(statusbuf, delim, &saveptr);
char *status_remote_stm = strtok_r(NULL, delim, &saveptr);
char *status_remote_mod = strtok_r(NULL, delim, &saveptr);
if (!status_local_mod || !status_remote_stm || !status_remote_mod)
continue;
if ( ((*status_local_mod == 'A') && (mod_ndx == 0)) ||
((*status_local_mod == 'B') && (mod_ndx == 1)) ||
((*status_local_mod == 'C') && (mod_ndx == 2)) ) {
strncpy(dest_rptr, status_remote_stm, CALL_SIZE);
dest_rptr[7] = *status_remote_mod;
dest_rptr[CALL_SIZE] = '\0';
break;
}
}
fclose(statusfp);
}
return;
}
/* compute checksum */
void CQnetGateway::calcPFCS(unsigned char *packet, int len)
{
const unsigned short crc_tabccitt[256] = {
0x0000,0x1189,0x2312,0x329b,0x4624,0x57ad,0x6536,0x74bf,0x8c48,0x9dc1,0xaf5a,0xbed3,0xca6c,0xdbe5,0xe97e,0xf8f7,
0x1081,0x0108,0x3393,0x221a,0x56a5,0x472c,0x75b7,0x643e,0x9cc9,0x8d40,0xbfdb,0xae52,0xdaed,0xcb64,0xf9ff,0xe876,
0x2102,0x308b,0x0210,0x1399,0x6726,0x76af,0x4434,0x55bd,0xad4a,0xbcc3,0x8e58,0x9fd1,0xeb6e,0xfae7,0xc87c,0xd9f5,
0x3183,0x200a,0x1291,0x0318,0x77a7,0x662e,0x54b5,0x453c,0xbdcb,0xac42,0x9ed9,0x8f50,0xfbef,0xea66,0xd8fd,0xc974,
0x4204,0x538d,0x6116,0x709f,0x0420,0x15a9,0x2732,0x36bb,0xce4c,0xdfc5,0xed5e,0xfcd7,0x8868,0x99e1,0xab7a,0xbaf3,
0x5285,0x430c,0x7197,0x601e,0x14a1,0x0528,0x37b3,0x263a,0xdecd,0xcf44,0xfddf,0xec56,0x98e9,0x8960,0xbbfb,0xaa72,
0x6306,0x728f,0x4014,0x519d,0x2522,0x34ab,0x0630,0x17b9,0xef4e,0xfec7,0xcc5c,0xddd5,0xa96a,0xb8e3,0x8a78,0x9bf1,
0x7387,0x620e,0x5095,0x411c,0x35a3,0x242a,0x16b1,0x0738,0xffcf,0xee46,0xdcdd,0xcd54,0xb9eb,0xa862,0x9af9,0x8b70,
0x8408,0x9581,0xa71a,0xb693,0xc22c,0xd3a5,0xe13e,0xf0b7,0x0840,0x19c9,0x2b52,0x3adb,0x4e64,0x5fed,0x6d76,0x7cff,
0x9489,0x8500,0xb79b,0xa612,0xd2ad,0xc324,0xf1bf,0xe036,0x18c1,0x0948,0x3bd3,0x2a5a,0x5ee5,0x4f6c,0x7df7,0x6c7e,
0xa50a,0xb483,0x8618,0x9791,0xe32e,0xf2a7,0xc03c,0xd1b5,0x2942,0x38cb,0x0a50,0x1bd9,0x6f66,0x7eef,0x4c74,0x5dfd,
0xb58b,0xa402,0x9699,0x8710,0xf3af,0xe226,0xd0bd,0xc134,0x39c3,0x284a,0x1ad1,0x0b58,0x7fe7,0x6e6e,0x5cf5,0x4d7c,
0xc60c,0xd785,0xe51e,0xf497,0x8028,0x91a1,0xa33a,0xb2b3,0x4a44,0x5bcd,0x6956,0x78df,0x0c60,0x1de9,0x2f72,0x3efb,
0xd68d,0xc704,0xf59f,0xe416,0x90a9,0x8120,0xb3bb,0xa232,0x5ac5,0x4b4c,0x79d7,0x685e,0x1ce1,0x0d68,0x3ff3,0x2e7a,
0xe70e,0xf687,0xc41c,0xd595,0xa12a,0xb0a3,0x8238,0x93b1,0x6b46,0x7acf,0x4854,0x59dd,0x2d62,0x3ceb,0x0e70,0x1ff9,
0xf78f,0xe606,0xd49d,0xc514,0xb1ab,0xa022,0x92b9,0x8330,0x7bc7,0x6a4e,0x58d5,0x495c,0x3de3,0x2c6a,0x1ef1,0x0f78
};
unsigned short crc_dstar_ffff = 0xffff;
short int low, high;
unsigned short tmp;
switch (len) {
case 56:
low = 15;
high = 54;
break;
case 58:
low = 17;
high = 56;
break;
default:
return;
}
for (unsigned short int i = low; i < high ; i++) {
unsigned short short_c = 0x00ff & (unsigned short)packet[i];
tmp = (crc_dstar_ffff & 0x00ff) ^ short_c;
crc_dstar_ffff = (crc_dstar_ffff >> 8) ^ crc_tabccitt[tmp];
}
crc_dstar_ffff = ~crc_dstar_ffff;
tmp = crc_dstar_ffff;
if (len == 56) {
packet[54] = (unsigned char)(crc_dstar_ffff & 0xff);
packet[55] = (unsigned char)((tmp >> 8) & 0xff);
} else {
packet[56] = (unsigned char)(crc_dstar_ffff & 0xff);
packet[57] = (unsigned char)((tmp >> 8) & 0xff);
}
return;
}
/* process configuration file */
bool CQnetGateway::read_config(char *cfgFile)
{
const std::string estr; // an empty string
CQnetConfigure cfg;
if (cfg.Initialize(cfgFile))
return true;
// ircddb
std::string path("ircddb_");
if (cfg.GetValue(path+"login", estr, owner, 3, CALL_SIZE-2))
return true;
OWNER = owner;
ToLower(owner);
ToUpper(OWNER);
printf("OWNER='%s'\n", OWNER.c_str());
OWNER.resize(CALL_SIZE, ' ');
if (cfg.GetValue(path+"host", estr, ircddb.ip, 3, MAXHOSTNAMELEN))
return true;
if (cfg.GetValue(path+"port", estr, ircddb.port, 1000, 65535))
return true;
if (cfg.GetValue(path+"password", estr, irc_pass, 0, 512))
return true;
// module
for (int m=0; m<3; m++) {
path.assign("module_");
path.append(1, 'a' + m);
std::string type;
if (cfg.GetValue(path, estr, type, 1, 8)) {
rptr.mod[m].defined = false;
} else {
printf("Found Module: %s = '%s'\n", path.c_str(), type.c_str());
if (0 == type.compare("dvap")) {
rptr.mod[m].package_version = DVAP_VERSION;
} else if (0 == type.compare("dvrptr")) {
rptr.mod[m].package_version = DVRPTR_VERSION;
} else if (0 == type.compare("mmdvm")) {
rptr.mod[m].package_version = MMDVM_VERSION;
} else if (0 == type.compare("itap")) {
rptr.mod[m].package_version = ITAP_VERSION;
} else {
printf("module type '%s' is invalid\n", type.c_str());
return true;
}
rptr.mod[m].defined = true;
path.append(1, '_');
cfg.GetValue(path+"frequency", type, rptr.mod[m].frequency, 0.0, 1.0e12);
cfg.GetValue(path+"offset", type, rptr.mod[m].offset, -1.0e12, 1.0e12);
cfg.GetValue(path+"range", type, rptr.mod[m].range, 0.0, 1609344.0);
cfg.GetValue(path+"agl", type, rptr.mod[m].agl, 0.0, 1000.0);
// make the long description for the log
if (rptr.mod[m].desc1.length())
rptr.mod[m].desc = rptr.mod[m].desc1 + ' ';
rptr.mod[m].desc += rptr.mod[m].desc2;
}
}
if (! (rptr.mod[0].defined || rptr.mod[1].defined || rptr.mod[2].defined)) {
printf("No modules defined!\n");
return true;
}
// gateway
path.assign("gateway_");
cfg.GetValue(path+"local_irc_ip", estr, local_irc_ip, 7, IP_SIZE);
cfg.GetValue(path+"ip", estr, g2_external.ip, 7, IP_SIZE);
cfg.GetValue(path+"port", estr, g2_external.port, 1024, 65535);
cfg.GetValue(path+"header_regen", estr, bool_regen_header);
cfg.GetValue(path+"send_qrgs_maps", estr, bool_send_qrgs);
cfg.GetValue(path+"gate2link", estr, gate2link, 1, FILENAME_MAX);
cfg.GetValue(path+"link2gate", estr, link2gate, 1, FILENAME_MAX);
cfg.GetValue(path+"modem2gate", estr, modem2gate, 1, FILENAME_MAX);
for (int m=0; m<3; m++) {
if (rptr.mod[m].defined) {
cfg.GetValue(path+"gate2modem"+std::string(1, 'a'+m), estr, gate2modem[m], 1, FILENAME_MAX);
cfg.GetValue(path+"latitude", estr, rptr.mod[m].latitude, -90.0, 90.0);
cfg.GetValue(path+"longitude", estr, rptr.mod[m].longitude, -180.0, 180.0);
cfg.GetValue(path+"desc1", estr, rptr.mod[m].desc1, 0, 20);
cfg.GetValue(path+"desc2", estr, rptr.mod[m].desc2, 0, 20);
cfg.GetValue(path+"url", estr, rptr.mod[m].url, 0, 80);
}
}
// APRS
path.assign("aprs_");
cfg.GetValue(path+"enable", estr, bool_send_aprs);
cfg.GetValue(path+"host", estr, rptr.aprs.ip, 7, MAXHOSTNAMELEN);
cfg.GetValue(path+"port", estr, rptr.aprs.port, 10000, 65535);
cfg.GetValue(path+"interval", estr, rptr.aprs_interval, 40, 1000);
cfg.GetValue(path+"filter", estr, rptr.aprs_filter, 0, 512);
// log
path.assign("log_");
cfg.GetValue(path+"qso", estr, bool_qso_details);
cfg.GetValue(path+"irc", estr, bool_irc_debug);
cfg.GetValue(path+"dtmf", estr, bool_dtmf_debug);
// file
path.assign("file_");
cfg.GetValue(path+"echotest", estr, echotest_dir, 2, FILENAME_MAX);
cfg.GetValue(path+"dtmf", estr, dtmf_dir, 2, FILENAME_MAX);
cfg.GetValue(path+"status", estr, status_file, 2, FILENAME_MAX);
cfg.GetValue(path+"qnvoice_file", estr, qnvoicefile, 2, FILENAME_MAX);
// timing
path.assign("timing_play_");
cfg.GetValue(path+"wait", estr, play_wait, 1, 10);
cfg.GetValue(path+"delay", estr, play_delay, 9, 25);
path.assign("timing_timeout_");
cfg.GetValue(path+"echo", estr, echotest_rec_timeout, 1, 10);
cfg.GetValue(path+"voicemail", estr, voicemail_rec_timeout, 1, 10);
cfg.GetValue(path+"remote_g2", estr, from_remote_g2_timeout, 1, 10);
cfg.GetValue(path+"local_rptr", estr, from_local_rptr_timeout, 1, 10);
return false;
}
// Create ports
int CQnetGateway::open_port(const SPORTIP &pip)
{
struct sockaddr_in sin;
int sock = socket(PF_INET, SOCK_DGRAM, 0);
if (0 > sock) {
printf("Failed to create socket on %s:%d, errno=%d, %s\n", pip.ip.c_str(), pip.port, errno, strerror(errno));
return -1;
}
fcntl(sock, F_SETFL, O_NONBLOCK);
memset(&sin, 0, sizeof(struct sockaddr_in));
sin.sin_family = AF_INET;
sin.sin_port = htons(pip.port);
sin.sin_addr.s_addr = inet_addr(pip.ip.c_str());
int reuse = 1;
if (::setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
printf("Cannot set the UDP socket (port %u) option, err: %d, %s\n", pip.port, errno, strerror(errno));
return -1;
}
if (bind(sock, (struct sockaddr *)&sin, sizeof(struct sockaddr_in)) != 0) {
printf("Failed to bind %s:%d, errno=%d, %s\n", pip.ip.c_str(), pip.port, errno, strerror(errno));
close(sock);
return -1;
}
return sock;
}
/* receive data from the irc server and save it */
void CQnetGateway::GetIRCDataThread()
{
std::string user, rptr, gateway, ipaddr;
DSTAR_PROTOCOL proto;
IRCDDB_RESPONSE_TYPE type;
struct sigaction act;
short last_status = 0;
act.sa_handler = sigCatch;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_RESTART;
if (sigaction(SIGTERM, &act, 0) != 0) {
printf("GetIRCDataThread: sigaction-TERM failed, error=%d\n", errno);
keep_running = false;
return;
}
if (sigaction(SIGINT, &act, 0) != 0) {
printf("GetIRCDataThread: sigaction-INT failed, error=%d\n", errno);
keep_running = false;
return;
}
if (sigaction(SIGPIPE, &act, 0) != 0) {
printf("GetIRCDataThread: sigaction-PIPE failed, error=%d\n", errno);
keep_running = false;
return;
}
short threshold = 0;
bool not_announced[3];
for (int i=0; i<3; i++)
not_announced[i] = this->rptr.mod[i].defined; // announce to all modules that are defined!
bool is_quadnet = (0 == ircddb.ip.compare("rr.openquad.net"));
while (keep_running) {
int rc = ii->getConnectionState();
if (rc > 5 && rc < 8 && is_quadnet) {
char ch = '\0';
if (not_announced[0])
ch = 'A';
else if (not_announced[1])
ch = 'B';
else if (not_announced[2])
ch = 'C';
if (ch) {
// we need to announce, but can we?
struct stat sbuf;
if (stat(qnvoicefile.c_str(), &sbuf)) {
// yes, there is no qnvoicefile, so create it
FILE *fp = fopen(qnvoicefile.c_str(), "w");
if (fp) {
fprintf(fp, "%c_connected2network.dat_WELCOME_TO_QUADNET", ch);
fclose(fp);
not_announced[ch - 'A'] = false;
} else
fprintf(stderr, "could not open %s\n", qnvoicefile.c_str());
}
}
}
threshold++;
if (threshold >= 100) {
if ((rc == 0) || (rc == 10)) {
if (last_status != 0) {
printf("irc status=%d, probable disconnect...\n", rc);
last_status = 0;
}
} else if (rc == 7) {
if (last_status != 2) {
printf("irc status=%d, probable connect...\n", rc);
last_status = 2;
}
} else {
if (last_status != 1) {
printf("irc status=%d, probable connect...\n", rc);
last_status = 1;
}
}
threshold = 0;
}
while (((type = ii->getMessageType()) != IDRT_NONE) && keep_running) {
if (type == IDRT_USER) {
ii->receiveUser(user, rptr, gateway, ipaddr);
if (!user.empty()) {
if (!rptr.empty() && !gateway.empty() && !ipaddr.empty()) {
if (bool_irc_debug)
printf("C-u:%s,%s,%s,%s\n", user.c_str(), rptr.c_str(), gateway.c_str(), ipaddr.c_str());
pthread_mutex_lock(&irc_data_mutex);
user2rptr_map[user] = rptr;
rptr2gwy_map[rptr] = gateway;
gwy2ip_map[gateway] = ipaddr;
pthread_mutex_unlock(&irc_data_mutex);
// printf("%d users, %d repeaters, %d gateways\n", user2rptr_map.size(), rptr2gwy_map.size(), gwy2ip_map.size());
}
}
} else if (type == IDRT_REPEATER) {
ii->receiveRepeater(rptr, gateway, ipaddr, proto);
if (!rptr.empty()) {
if (!gateway.empty() && !ipaddr.empty()) {
if (bool_irc_debug)
printf("C-r:%s,%s,%s\n", rptr.c_str(), gateway.c_str(), ipaddr.c_str());
pthread_mutex_lock(&irc_data_mutex);
rptr2gwy_map[rptr] = gateway;
gwy2ip_map[gateway] = ipaddr;
pthread_mutex_unlock(&irc_data_mutex);
// printf("%d repeaters, %d gateways\n", rptr2gwy_map.size(), gwy2ip_map.size());
}
}
} else if (type == IDRT_GATEWAY) {
ii->receiveGateway(gateway, ipaddr, proto);
if (!gateway.empty() && !ipaddr.empty()) {
if (bool_irc_debug)
printf("C-g:%s,%s\n", gateway.c_str(),ipaddr.c_str());
pthread_mutex_lock(&irc_data_mutex);
gwy2ip_map[gateway] = ipaddr;
pthread_mutex_unlock(&irc_data_mutex);
// printf("%d gateways\n", gwy2ip_map.size());
}
}
}
std::this_thread::sleep_for(std::chrono::milliseconds(500));
}
printf("GetIRCDataThread exiting...\n");
return;
}
/* return codes: 0=OK(found it), 1=TRY AGAIN, 2=FAILED(bad data) */
int CQnetGateway::get_yrcall_rptr_from_cache(char *call, char *arearp_cs, char *zonerp_cs, char *mod, char *ip, char RoU)
{
char temp[CALL_SIZE + 1];
memset(arearp_cs, ' ', CALL_SIZE);
arearp_cs[CALL_SIZE] = '\0';
memset(zonerp_cs, ' ', CALL_SIZE);
zonerp_cs[CALL_SIZE] = '\0';
*mod = ' ';
/* find the user in the CACHE */
if (RoU == 'U') {
auto user_pos = user2rptr_map.find(call);
if (user_pos != user2rptr_map.end()) {
memcpy(arearp_cs, user_pos->second.c_str(), 7);
*mod = user_pos->second.c_str()[7];
} else
return 1;
} else if (RoU == 'R') {
memcpy(arearp_cs, call, 7);
*mod = call[7];
} else {
printf("Invalid specification %c for RoU\n", RoU);
return 2;
}
if (*mod == 'G') {
printf("Invalid module %c\n", *mod);
return 2;
}
memcpy(temp, arearp_cs, 7);
temp[7] = *mod;
temp[CALL_SIZE] = '\0';
auto rptr_pos = rptr2gwy_map.find(temp);
if (rptr_pos != rptr2gwy_map.end()) {
memcpy(zonerp_cs, rptr_pos->second.c_str(), CALL_SIZE);
zonerp_cs[CALL_SIZE] = '\0';
auto gwy_pos = gwy2ip_map.find(zonerp_cs);
if (gwy_pos != gwy2ip_map.end()) {
strncpy(ip, gwy_pos->second.c_str(), IP_SIZE);
ip[IP_SIZE] = '\0';
return 0;
} else {
/* printf("Could not find IP for Gateway %s\n", zonerp_cs); */
return 1;
}
} else {
/* printf("Could not find Gateway for repeater %s\n", temp); */
return 1;
}
return 2;
}
bool CQnetGateway::get_yrcall_rptr(char *call, char *arearp_cs, char *zonerp_cs, char *mod, char *ip, char RoU)
{
pthread_mutex_lock(&irc_data_mutex);
int rc = get_yrcall_rptr_from_cache(call, arearp_cs, zonerp_cs, mod, ip, RoU);
pthread_mutex_unlock(&irc_data_mutex);
if (rc == 0)
return true;
else if (rc == 2)
return false;
/* at this point, the data is not in cache */
/* report the irc status */
int status = ii->getConnectionState();
// printf("irc status=%d\n", status);
if (status != 7) {
printf("Remote irc database not ready, irc status is not 7, try again\n");
return false;
}
/* request data from irc server */
if (RoU == 'U') {
printf("User [%s] not in local cache, try again\n", call);
/*** YRCALL=KJ4NHFBL ***/
if (((call[6] == 'A') || (call[6] == 'B') || (call[6] == 'C')) && (call[7] == 'L'))
printf("If this was a gateway link request, that is ok\n");
if (!ii->findUser(call)) {
printf("findUser(%s): Network error\n", call);
return false;
}
} else if (RoU == 'R') {
printf("Repeater [%s] not in local cache, try again\n", call);
if (!ii->findRepeater(call)) {
printf("findRepeater(%s): Network error\n", call);
return false;
}
}
return false;
}
bool CQnetGateway::Flag_is_ok(unsigned char flag)
{
// normal break emr emr+break
return 0x00U==flag || 0x08U==flag || 0x20U==flag || 0x28U==flag;
}
void CQnetGateway::ProcessTimeouts()
{
for (int i=0; i<3; i++) {
time_t t_now;
/* echotest recording timed out? */
if (recd[i].last_time != 0) {
time(&t_now);
if ((t_now - recd[i].last_time) > echotest_rec_timeout) {
printf("Inactivity on echotest recording module %c, removing stream id=%04x\n", 'A'+i, ntohs(recd[i].streamid));
recd[i].streamid = 0;
recd[i].last_time = 0;
close(recd[i].fd);
recd[i].fd = -1;
// printf("Closed echotest audio file:[%s]\n", recd[i].file);
/* START: echotest thread setup */
try {
std::async(std::launch::async, &CQnetGateway::PlayFileThread, this, std::ref(recd[i]));
} catch (const std::exception &e) {
printf("Failed to start echotest thread. Exception: %s\n", e.what());
// when the echotest thread runs, it deletes the file,
// Because the echotest thread did NOT start, we delete the file here
unlink(recd[i].file);
}
/* END: echotest thread setup */
}
}
/* voicemail recording timed out? */
if (vm[i].last_time != 0) {
time(&t_now);
if ((t_now - vm[i].last_time) > voicemail_rec_timeout) {
printf("Inactivity on voicemail recording module %c, removing stream id=%04x\n", 'A'+i, ntohs(vm[i].streamid));
vm[i].streamid = 0;
vm[i].last_time = 0;
close(vm[i].fd);
vm[i].fd = -1;
// printf("Closed voicemail audio file:[%s]\n", vm[i].file);
}
}
// any stream going to local repeater timed out?
if (toRptr[i].last_time != 0) {
time(&t_now);
// The stream can be from a cross-band, or from a remote system,
// so we could use either FROM_LOCAL_RPTR_TIMEOUT or FROM_REMOTE_G2_TIMEOUT
// but FROM_REMOTE_G2_TIMEOUT makes more sense, probably is a bigger number
if ((t_now - toRptr[i].last_time) > from_remote_g2_timeout) {
printf("Inactivity to local rptr module %c, removing stream id %04x\n", 'A'+i, ntohs(toRptr[i].streamid));
// Send end_of_audio to local repeater.
// Let the repeater re-initialize
end_of_audio.counter = toRptr[i].G2_COUNTER++;
if (i == 0)
end_of_audio.vpkt.snd_term_id = 0x03;
else if (i == 1)
end_of_audio.vpkt.snd_term_id = 0x01;
else
end_of_audio.vpkt.snd_term_id = 0x02;
end_of_audio.vpkt.streamid = toRptr[i].streamid;
end_of_audio.vpkt.ctrl = toRptr[i].sequence | 0x40;
for (int j=0; j<2; j++)
Gate2Modem[i].Write(end_of_audio.pkt_id, 29);
toRptr[i].streamid = 0;
toRptr[i].adr = 0;
toRptr[i].last_time = 0;
}
}
/* any stream coming from local repeater timed out ? */
if (band_txt[i].last_time != 0) {
time(&t_now);
if ((t_now - band_txt[i].last_time) > from_local_rptr_timeout) {
/* This local stream never went to a remote system, so trace the timeout */
if (to_remote_g2[i].toDst4.sin_addr.s_addr == 0)
printf("Inactivity from local rptr module %c, removing stream id %04x\n", 'A'+i, ntohs(band_txt[i].streamID));
band_txt[i].streamID = 0;
band_txt[i].flags[0] = band_txt[i].flags[1] = band_txt[i].flags[2] = 0x0;
band_txt[i].lh_mycall[0] = '\0';
band_txt[i].lh_sfx[0] = '\0';
band_txt[i].lh_yrcall[0] = '\0';
band_txt[i].lh_rpt1[0] = '\0';
band_txt[i].lh_rpt2[0] = '\0';
band_txt[i].last_time = 0;
band_txt[i].txt[0] = '\0';
band_txt[i].txt_cnt = 0;
band_txt[i].dest_rptr[0] = '\0';
band_txt[i].num_dv_frames = 0;
band_txt[i].num_dv_silent_frames = 0;
band_txt[i].num_bit_errors = 0;
}
}
/* any stream from local repeater to a remote gateway timed out ? */
if (to_remote_g2[i].toDst4.sin_addr.s_addr != 0) {
time(&t_now);
if ((t_now - to_remote_g2[i].last_time) > from_local_rptr_timeout) {
printf("Inactivity from local rptr mod %d, removing stream id %04x\n", i, to_remote_g2[i].streamid);
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].streamid = 0;
to_remote_g2[i].last_time = 0;
}
}
}
}
// new_group is true if we are processing the first voice packet of a 2-voice packet pair. The high order nibble of the first byte of
// this first packet specifed the type of slow data that is being sent.
// the to_print is an integer that counts down how many 2-voice-frame pairs remain to be processed.
// ABC_grp means that we are processing a 20-character message.
// C_seen means that we are processing the last 2-voice-frame packet on a 20 character message.
void CQnetGateway::ProcessSlowData(unsigned char *data, unsigned short sid)
{
/* extract 20-byte RADIO ID */
if ((data[0] != 0x55) || (data[1] != 0x2d) || (data[2] != 0x16)) {
// first, unscramble
unsigned char c1 = data[0] ^ 0x70u;
unsigned char c2 = data[1] ^ 0x4fu;
unsigned char c3 = data[2] ^ 0x93u;
for (int i=0; i<3; i++) {
if (band_txt[i].streamID == sid) {
if (new_group[i]) {
header_type = c1 & 0xf0;
// header squelch
if ((header_type == 0x50) || (header_type == 0xc0)) {
new_group[i] = false;
to_print[i] = 0;
ABC_grp[i] = false;
}
else if (header_type == 0x30) { /* GPS or GPS id or APRS */
new_group[i] = false;
to_print[i] = c1 & 0x0f;
ABC_grp[i] = false;
if (to_print[i] > 5)
to_print[i] = 5;
else if (to_print[i] < 1)
to_print[i] = 1;
if ((to_print[i] > 1) && (to_print[i] <= 5)) {
/* something went wrong? all bets are off */
if (band_txt[i].temp_line_cnt > 200) {
printf("Reached the limit in the OLD gps mode\n");
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
/* fresh GPS string, re-initialize */
if ((to_print[i] == 5) && (c2 == '$')) {
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
/* do not copy CR, NL */
if ((c2 != '\r') && (c2 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c2;
band_txt[i].temp_line_cnt++;
}
if ((c3 != '\r') && (c3 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c3;
band_txt[i].temp_line_cnt++;
}
if ((c2 == '\r') || (c3 == '\r')) {
if (memcmp(band_txt[i].temp_line, "$GPRMC", 6) == 0) {
memcpy(band_txt[i].gprmc, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gprmc[band_txt[i].temp_line_cnt] = '\0';
} else if (band_txt[i].temp_line[0] != '$') {
memcpy(band_txt[i].gpid, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gpid[band_txt[i].temp_line_cnt] = '\0';
if (bool_send_aprs && !band_txt[i].is_gps_sent)
gps_send(i);
}
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
} else if ((c2 == '\n') || (c3 == '\n')) {
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
to_print[i] -= 2;
} else {
/* something went wrong? all bets are off */
if (band_txt[i].temp_line_cnt > 200) {
printf("Reached the limit in the OLD gps mode\n");
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
/* do not copy CR, NL */
if ((c2 != '\r') && (c2 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c2;
band_txt[i].temp_line_cnt++;
}
if (c2 == '\r') {
if (memcmp(band_txt[i].temp_line, "$GPRMC", 6) == 0) {
memcpy(band_txt[i].gprmc, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gprmc[band_txt[i].temp_line_cnt] = '\0';
} else if (band_txt[i].temp_line[0] != '$') {
memcpy(band_txt[i].gpid, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gpid[band_txt[i].temp_line_cnt] = '\0';
if (bool_send_aprs && !band_txt[i].is_gps_sent)
gps_send(i);
}
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
} else if (c2 == '\n') {
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
to_print[i] --;
}
}
else if (header_type == 0x40) { /* ABC text */
new_group[i] = false;
to_print[i] = 3;
ABC_grp[i] = true;
C_seen[i] = ((c1 & 0x0f) == 0x03) ? true : false;
band_txt[i].txt[band_txt[i].txt_cnt] = c2;
band_txt[i].txt_cnt++;
band_txt[i].txt[band_txt[i].txt_cnt] = c3;
band_txt[i].txt_cnt++;
/* We should NOT see any more text,
if we already processed text,
so blank out the codes. */
if (band_txt[i].sent_key_on_msg) {
data[0] = 0x70;
data[1] = 0x4f;
data[2] = 0x93;
}
if (band_txt[i].txt_cnt >= 20) {
band_txt[i].txt[band_txt[i].txt_cnt] = '\0';
band_txt[i].txt_cnt = 0;
}
}
else { // header type is not header, squelch, gps or message
new_group[i] = false;
to_print[i] = 0;
ABC_grp[i] = false;
}
}
else { // not a new_group, this is the second of a two-voice-frame pair
if (! band_txt[i].sent_key_on_msg && vPacketCount > 100) {
// 100 voice packets received and still no 20-char message!
/*** if YRCALL is CQCQCQ, set dest_rptr ***/
band_txt[i].txt[0] = '\0';
if (memcmp(band_txt[i].lh_yrcall, "CQCQCQ", 6) == 0) {
set_dest_rptr(i, band_txt[i].dest_rptr);
if (memcmp(band_txt[i].dest_rptr, "REF", 3) == 0)
band_txt[i].dest_rptr[0] = '\0';
}
// we have the 20-character message, send it to the server...
ii->sendHeardWithTXMsg(band_txt[i].lh_mycall, band_txt[i].lh_sfx, (strstr(band_txt[i].lh_yrcall,"REF") == NULL)?band_txt[i].lh_yrcall:"CQCQCQ ", band_txt[i].lh_rpt1, band_txt[i].lh_rpt2, band_txt[i].flags[0], band_txt[i].flags[1], band_txt[i].flags[2], band_txt[i].dest_rptr, band_txt[i].txt);
band_txt[i].sent_key_on_msg = true;
}
if (to_print[i] == 3) {
if (ABC_grp[i]) {
band_txt[i].txt[band_txt[i].txt_cnt] = c1;
band_txt[i].txt_cnt++;
band_txt[i].txt[band_txt[i].txt_cnt] = c2;
band_txt[i].txt_cnt++;
band_txt[i].txt[band_txt[i].txt_cnt] = c3;
band_txt[i].txt_cnt++;
/* We should NOT see any more text,
if we already processed text,
so blank out the codes. */
if (band_txt[i].sent_key_on_msg) {
data[0] = 0x70;
data[1] = 0x4f;
data[2] = 0x93;
}
if ((band_txt[i].txt_cnt >= 20) || C_seen[i]) {
band_txt[i].txt[band_txt[i].txt_cnt] = '\0';
if ( ! band_txt[i].sent_key_on_msg) {
/*** if YRCALL is CQCQCQ, set dest_rptr ***/
if (memcmp(band_txt[i].lh_yrcall, "CQCQCQ", 6) == 0) {
set_dest_rptr(i, band_txt[i].dest_rptr);
if (memcmp(band_txt[i].dest_rptr, "REF", 3) == 0)
band_txt[i].dest_rptr[0] = '\0';
}
// we have the 20-character message, send it to the server...
ii->sendHeardWithTXMsg(band_txt[i].lh_mycall, band_txt[i].lh_sfx, (strstr(band_txt[i].lh_yrcall,"REF") == NULL)?band_txt[i].lh_yrcall:"CQCQCQ ", band_txt[i].lh_rpt1, band_txt[i].lh_rpt2, band_txt[i].flags[0], band_txt[i].flags[1], band_txt[i].flags[2], band_txt[i].dest_rptr, band_txt[i].txt);
band_txt[i].sent_key_on_msg = true;
}
band_txt[i].txt_cnt = 0;
}
if (C_seen[i])
C_seen[i] = false;
} else {
/* something went wrong? all bets are off */
if (band_txt[i].temp_line_cnt > 200) {
printf("Reached the limit in the OLD gps mode\n");
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
/* do not copy carrige return or newline */
if ((c1 != '\r') && (c1 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c1;
band_txt[i].temp_line_cnt++;
}
if ((c2 != '\r') && (c2 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c2;
band_txt[i].temp_line_cnt++;
}
if ((c3 != '\r') && (c3 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c3;
band_txt[i].temp_line_cnt++;
}
if ( (c1 == '\r') || (c2 == '\r') || (c3 == '\r') ) {
if (memcmp(band_txt[i].temp_line, "$GPRMC", 6) == 0) {
memcpy(band_txt[i].gprmc, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gprmc[band_txt[i].temp_line_cnt] = '\0';
} else if (band_txt[i].temp_line[0] != '$') {
memcpy(band_txt[i].gpid, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gpid[band_txt[i].temp_line_cnt] = '\0';
if (bool_send_aprs && !band_txt[i].is_gps_sent)
gps_send(i);
}
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
else if ((c1 == '\n') || (c2 == '\n') ||(c3 == '\n')) {
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
}
} else if (to_print[i] == 2) {
/* something went wrong? all bets are off */
if (band_txt[i].temp_line_cnt > 200) {
printf("Reached the limit in the OLD gps mode\n");
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
/* do not copy CR, NL */
if ((c1 != '\r') && (c1 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c1;
band_txt[i].temp_line_cnt++;
}
if ((c2 != '\r') && (c2 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c2;
band_txt[i].temp_line_cnt++;
}
if ((c1 == '\r') || (c2 == '\r')) {
if (memcmp(band_txt[i].temp_line, "$GPRMC", 6) == 0) {
memcpy(band_txt[i].gprmc, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gprmc[band_txt[i].temp_line_cnt] = '\0';
} else if (band_txt[i].temp_line[0] != '$') {
memcpy(band_txt[i].gpid, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gpid[band_txt[i].temp_line_cnt] = '\0';
if (bool_send_aprs && !band_txt[i].is_gps_sent)
gps_send(i);
}
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
} else if ((c1 == '\n') || (c2 == '\n')) {
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
} else if (to_print[i] == 1) {
/* something went wrong? all bets are off */
if (band_txt[i].temp_line_cnt > 200) {
printf("Reached the limit in the OLD gps mode\n");
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
/* do not copy CR, NL */
if ((c1 != '\r') && (c1 != '\n')) {
band_txt[i].temp_line[band_txt[i].temp_line_cnt] = c1;
band_txt[i].temp_line_cnt++;
}
if (c1 == '\r') {
if (memcmp(band_txt[i].temp_line, "$GPRMC", 6) == 0) {
memcpy(band_txt[i].gprmc, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gprmc[band_txt[i].temp_line_cnt] = '\0';
} else if (band_txt[i].temp_line[0] != '$') {
memcpy(band_txt[i].gpid, band_txt[i].temp_line, band_txt[i].temp_line_cnt);
band_txt[i].gpid[band_txt[i].temp_line_cnt] = '\0';
if (bool_send_aprs && !band_txt[i].is_gps_sent)
gps_send(i);
}
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
} else if (c1 == '\n') {
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
}
}
new_group[i] = true;
to_print[i] = 0;
ABC_grp[i] = false;
}
break;
}
}
}
}
void CQnetGateway::ProcessG2(const ssize_t g2buflen, const SDSVT &g2buf, const bool is_from_g2)
// is_from_g2==true means it's coming from external port 40000
// is_from_g2==false means it's coming from the link2gate Unix socket
{
if ( (g2buflen==56 || g2buflen==27) && 0==memcmp(g2buf.title, "DSVT", 4) && (g2buf.config==0x10 || g2buf.config==0x20) && g2buf.id==0x20) {
if (g2buflen == 56) {
// Find out the local repeater module IP/port to send the data to
int i = g2buf.hdr.rpt1[7] - 'A';
/* valid repeater module? */
if (i>=0 && i<3) {
// toRptr[i] is active if a remote system is talking to it or
// toRptr[i] is receiving data from a cross-band
if (0==toRptr[i].last_time && 0==band_txt[i].last_time && (Flag_is_ok(g2buf.hdr.flag[0]) || 0x01U==g2buf.hdr.flag[0] || 0x40U==g2buf.hdr.flag[0])) {
if (bool_qso_details) {
if (is_from_g2)
printf("id=%04x G2 start, ur=%.8s r1=%.8s r2=%.8s my=%.8s/%.4s IP=%s:%u\n", ntohs(g2buf.streamid), g2buf.hdr.urcall, g2buf.hdr.rpt1, g2buf.hdr.rpt2, g2buf.hdr.mycall, g2buf.hdr.sfx, inet_ntoa(fromDst4.sin_addr), ntohs(fromDst4.sin_port));
else
printf("id=%04x G2 start, ur=%.8s r1=%.8s r2=%.8s my=%.8s/%.4s UnixSock=%s\n", ntohs(g2buf.streamid), g2buf.hdr.urcall, g2buf.hdr.rpt1, g2buf.hdr.rpt2, g2buf.hdr.mycall, g2buf.hdr.sfx, link2gate.c_str());
}
memcpy(rptrbuf.pkt_id, "DSTR", 4);
rptrbuf.counter = htons(toRptr[i].G2_COUNTER++); // bump the counter
rptrbuf.flag[0] = 0x73;
rptrbuf.flag[1] = 0x12;
rptrbuf.flag[2] = 0x00;
rptrbuf.remaining = 0x30;
rptrbuf.vpkt.icm_id = 0x20;
//memcpy(&rptrbuf.vpkt.dst_rptr_id, g2buf.flagb, 47);
rptrbuf.vpkt.dst_rptr_id = g2buf.flagb[0];
rptrbuf.vpkt.snd_rptr_id = g2buf.flagb[1];
rptrbuf.vpkt.snd_term_id = g2buf.flagb[2];
rptrbuf.vpkt.streamid = g2buf.streamid;
rptrbuf.vpkt.ctrl = g2buf.ctrl;
memcpy(rptrbuf.vpkt.hdr.flag, g2buf.hdr.flag, 3);
memcpy(rptrbuf.vpkt.hdr.r1, g2buf.hdr.rpt2, 8);
memcpy(rptrbuf.vpkt.hdr.r2, g2buf.hdr.rpt1, 8);
memcpy(rptrbuf.vpkt.hdr.ur, g2buf.hdr.urcall, 8);
memcpy(rptrbuf.vpkt.hdr.my, g2buf.hdr.mycall, 8);
memcpy(rptrbuf.vpkt.hdr.nm, g2buf.hdr.sfx, 4);
memcpy(rptrbuf.vpkt.hdr.pfcs, g2buf.hdr.pfcs, 2);
Gate2Modem[i].Write(rptrbuf.pkt_id, 58);
/* save the header */
if (! is_from_g2)
fromDst4.sin_addr.s_addr = (unsigned long)i;
memcpy(toRptr[i].saved_hdr.pkt_id, rptrbuf.pkt_id, 58);
toRptr[i].saved_adr = fromDst4.sin_addr.s_addr;
/* This is the active streamid */
toRptr[i].streamid = g2buf.streamid;
toRptr[i].adr = fromDst4.sin_addr.s_addr;
/* time it, in case stream times out */
time(&toRptr[i].last_time);
toRptr[i].sequence = rptrbuf.vpkt.ctrl;
}
}
} else { // g2buflen == 27
if (bool_qso_details && g2buf.ctrl & 0x40)
printf("id=%04x END G2\n", ntohs(g2buf.streamid));
/* find out which repeater module to send the data to */
int i;
for (i=0; i<3; i++) {
/* streamid match ? */
bool match = (toRptr[i].streamid == g2buf.streamid);
if (is_from_g2)
match = match && (toRptr[i].adr == fromDst4.sin_addr.s_addr);
if (match) {
memcpy(rptrbuf.pkt_id, "DSTR", 4);
rptrbuf.counter = htons(toRptr[i].G2_COUNTER++);
rptrbuf.flag[0] = 0x73;
rptrbuf.flag[1] = 0x12;
rptrbuf.flag[2] = 0x00;
rptrbuf.remaining= 0x13;
rptrbuf.vpkt.icm_id = 0x20;
memcpy(&rptrbuf.vpkt.dst_rptr_id, g2buf.flagb, 18);
Gate2Modem[i].Write(rptrbuf.pkt_id, 29);
/* timeit */
time(&toRptr[i].last_time);
toRptr[i].sequence = rptrbuf.vpkt.ctrl;
/* End of stream ? */
if (g2buf.ctrl & 0x40) {
/* clear the saved header */
memset(toRptr[i].saved_hdr.pkt_id, 0, 58);
toRptr[i].saved_adr = 0;
toRptr[i].last_time = 0;
toRptr[i].streamid = 0;
toRptr[i].adr = 0;
}
break;
}
}
/* no match ? */
if ((i == 3) && bool_regen_header) {
/* check if this a continuation of audio that timed out */
if (g2buf.ctrl & 0x40)
; /* we do not care about end-of-QSO */
else {
/* for which repeater this stream has timed out ? */
for (i = 0; i < 3; i++) {
/* match saved stream ? */
bool match = (toRptr[i].saved_hdr.vpkt.streamid == g2buf.streamid);
if (is_from_g2)
match = match && (toRptr[i].saved_adr == fromDst4.sin_addr.s_addr);
if (match) {
/* repeater module is inactive ? */
if (toRptr[i].last_time==0 && band_txt[i].last_time==0) {
printf("Re-generating header for streamID=%04x\n", g2buf.streamid);
toRptr[i].saved_hdr.counter = htons(toRptr[i].G2_COUNTER++);
/* re-generate/send the header */
Gate2Modem[i].Write(toRptr[i].saved_hdr.pkt_id, 58);
/* send this audio packet to repeater */
memcpy(rptrbuf.pkt_id, "DSTR", 4);
rptrbuf.counter = htons(toRptr[i].G2_COUNTER++);
rptrbuf.flag[0] = 0x73;
rptrbuf.flag[1] = 0x12;
rptrbuf.flag[2] = 0x00;
rptrbuf.remaining = 0x13;
rptrbuf.vpkt.icm_id = 0x20;
memcpy(&rptrbuf.vpkt.dst_rptr_id, g2buf.flagb, 18);
Gate2Modem[i].Write(rptrbuf.pkt_id, 29);
/* make sure that any more audio arriving will be accepted */
toRptr[i].streamid = g2buf.streamid;
toRptr[i].adr = fromDst4.sin_addr.s_addr;
/* time it, in case stream times out */
time(&toRptr[i].last_time);
toRptr[i].sequence = rptrbuf.vpkt.ctrl;
}
break;
}
}
}
}
}
}
}
void CQnetGateway::ProcessModem()
{
char temp_radio_user[CALL_SIZE + 1];
char temp_mod;
char arearp_cs[CALL_SIZE + 1];
char zonerp_cs[CALL_SIZE + 1];
char ip[IP_SIZE + 1];
char tempfile[FILENAME_MAX + 1];
SDSVT g2buf;
int recvlen = Modem2Gate.Read(rptrbuf.pkt_id, 58);
if (0 == memcmp(rptrbuf.pkt_id, "DSTR", 4)) {
if ( (recvlen==58 || recvlen==29 || recvlen==32) && rptrbuf.flag[0]==0x73 && rptrbuf.flag[1]==0x12 && rptrbuf.flag[2]==0x0 && rptrbuf.vpkt.icm_id==0x20 && (rptrbuf.remaining==0x30 || rptrbuf.remaining==0x13 || rptrbuf.remaining==0x16) ) {
if (recvlen == 58) {
vPacketCount = 0U;
if (bool_qso_details)
printf("id=%04x cntr=%04x start RPTR ur=%.8s r1=%.8s r2=%.8s my=%.8s/%.4s\n", ntohs(rptrbuf.vpkt.streamid), ntohs(rptrbuf.counter), rptrbuf.vpkt.hdr.ur, rptrbuf.vpkt.hdr.r1, rptrbuf.vpkt.hdr.r2, rptrbuf.vpkt.hdr.my, rptrbuf.vpkt.hdr.nm);
if (0==memcmp(rptrbuf.vpkt.hdr.r1, OWNER.c_str(), 7) && Flag_is_ok(rptrbuf.vpkt.hdr.flag[0])) {
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
if (bool_dtmf_debug)
printf("resetting dtmf[%d] (got a header)\n", i);
dtmf_last_frame[i] = 0;
dtmf_counter[i] = 0;
memset(dtmf_buf[i], 0, sizeof(dtmf_buf[i]));
dtmf_buf_count[i] = 0;
/* Initialize the LAST HEARD data for the band */
band_txt[i].streamID = rptrbuf.vpkt.streamid;
memcpy(band_txt[i].flags, rptrbuf.vpkt.hdr.flag, 3);
memcpy(band_txt[i].lh_mycall, rptrbuf.vpkt.hdr.my, 8);
band_txt[i].lh_mycall[8] = '\0';
memcpy(band_txt[i].lh_sfx, rptrbuf.vpkt.hdr.nm, 4);
band_txt[i].lh_sfx[4] = '\0';
memcpy(band_txt[i].lh_yrcall, rptrbuf.vpkt.hdr.ur, 8);
band_txt[i].lh_yrcall[8] = '\0';
memcpy(band_txt[i].lh_rpt1, rptrbuf.vpkt.hdr.r1, 8);
band_txt[i].lh_rpt1[8] = '\0';
memcpy(band_txt[i].lh_rpt2, rptrbuf.vpkt.hdr.r2, 8);
band_txt[i].lh_rpt2[8] = '\0';
time(&band_txt[i].last_time);
band_txt[i].txt[0] = '\0';
band_txt[i].txt_cnt = 0;
band_txt[i].sent_key_on_msg = false;
band_txt[i].dest_rptr[0] = '\0';
/* try to process GPS mode: GPRMC and ID */
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
band_txt[i].gprmc[0] = '\0';
band_txt[i].gpid[0] = '\0';
band_txt[i].is_gps_sent = false;
// band_txt[i].gps_last_time = 0; DO NOT reset it
new_group[i] = true;
to_print[i] = 0;
ABC_grp[i] = false;
band_txt[i].num_dv_frames = 0;
band_txt[i].num_dv_silent_frames = 0;
band_txt[i].num_bit_errors = 0;
/* select the band for aprs processing, and lock on the stream ID */
if (bool_send_aprs)
aprs->SelectBand(i, ntohs(rptrbuf.vpkt.streamid));
}
}
/* Is MYCALL valid ? */
memset(temp_radio_user, ' ', 8);
memcpy(temp_radio_user, rptrbuf.vpkt.hdr.my, 8);
temp_radio_user[8] = '\0';
int mycall_valid = regexec(&preg, temp_radio_user, 0, NULL, 0);
if (mycall_valid == REG_NOERROR)
; // printf("MYCALL [%s] passed IRC expression validation\n", temp_radio_user);
else {
if (mycall_valid == REG_NOMATCH)
printf("MYCALL [%s] failed IRC expression validation\n", temp_radio_user);
else
printf("Failed to validate MYCALL [%s], regexec error=%d\n", temp_radio_user, mycall_valid);
}
/* send data qnlink */
if (mycall_valid == REG_NOERROR)
Gate2Link.Write(rptrbuf.pkt_id, recvlen);
if ( mycall_valid==REG_NOERROR &&
memcmp(rptrbuf.vpkt.hdr.ur, "XRF", 3) && // not a reflector
memcmp(rptrbuf.vpkt.hdr.ur, "REF", 3) &&
memcmp(rptrbuf.vpkt.hdr.ur, "DCS", 3) &&
rptrbuf.vpkt.hdr.ur[0]!=' ' && // must have something
memcmp(rptrbuf.vpkt.hdr.ur, "CQCQCQ", 6) ) // urcall is NOT CQCQCQ
{
if ( rptrbuf.vpkt.hdr.ur[0]=='/' && // repeater routing!
0==memcmp(rptrbuf.vpkt.hdr.r1, OWNER.c_str(), 7) && // rpt1 this repeater
(rptrbuf.vpkt.hdr.r1[7]>='A' && rptrbuf.vpkt.hdr.r1[7]<='C') && // with a valid module
0==memcmp(rptrbuf.vpkt.hdr.r2, OWNER.c_str(), 7) && // rpt2 is this repeater
rptrbuf.vpkt.hdr.r2[7]=='G' && // local Gateway
Flag_is_ok(rptrbuf.vpkt.hdr.flag[0]) )
{
if (memcmp(rptrbuf.vpkt.hdr.ur+1, OWNER.c_str(), 6)) { // the value after the slash is NOT this repeater
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
/* one radio user on a repeater module at a time */
if (to_remote_g2[i].toDst4.sin_addr.s_addr == 0) {
/* YRCALL=/repeater + mod */
/* YRCALL=/KJ4NHFB */
memset(temp_radio_user, ' ', 8);
memcpy(temp_radio_user, rptrbuf.vpkt.hdr.ur+1, 6);
temp_radio_user[6] = ' ';
temp_radio_user[7] = rptrbuf.vpkt.hdr.ur[7];
if (temp_radio_user[7] == ' ')
temp_radio_user[7] = 'A';
temp_radio_user[CALL_SIZE] = '\0';
bool result = get_yrcall_rptr(temp_radio_user, arearp_cs, zonerp_cs, &temp_mod, ip, 'R');
if (result) { /* it is a repeater */
uint32_t address;
/* set the destination */
to_remote_g2[i].streamid = rptrbuf.vpkt.streamid;
memset(&to_remote_g2[i].toDst4, 0, sizeof(struct sockaddr_in));
to_remote_g2[i].toDst4.sin_family = AF_INET;
to_remote_g2[i].toDst4.sin_addr.s_addr = address = inet_addr(ip);
// if the address is in the portmap, we'll use that saved port instead of the default port
auto theAddress = portmap.find(address);
to_remote_g2[i].toDst4.sin_port = htons((theAddress==portmap.end()) ? g2_external.port : theAddress->second);
memcpy(g2buf.title, "DSVT", 4);
g2buf.config = 0x10;
g2buf.flaga[0] = g2buf.flaga[1] = g2buf.flaga[2] = 0x00;
g2buf.id = rptrbuf.vpkt.icm_id;
g2buf.flagb[0] = rptrbuf.vpkt.dst_rptr_id;
g2buf.flagb[1] = rptrbuf.vpkt.snd_rptr_id;
g2buf.flagb[2] = rptrbuf.vpkt.snd_term_id;
g2buf.streamid = rptrbuf.vpkt.streamid;
g2buf.ctrl = rptrbuf.vpkt.ctrl;
memcpy(g2buf.hdr.flag, rptrbuf.vpkt.hdr.flag, 3);
/* set rpt1 */
memset(g2buf.hdr.rpt1, ' ', 8);
memcpy(g2buf.hdr.rpt1, arearp_cs, strlen(arearp_cs));
g2buf.hdr.rpt1[7] = temp_mod;
/* set rpt2 */
memset(g2buf.hdr.rpt2, ' ', 8);
memcpy(g2buf.hdr.rpt2, zonerp_cs, strlen(zonerp_cs));
g2buf.hdr.rpt2[7] = 'G';
/* set yrcall, can NOT let it be slash and repeater + module */
memcpy(g2buf.hdr.urcall, "CQCQCQ ", 8);
memcpy(g2buf.hdr.mycall, rptrbuf.vpkt.hdr.my, 8);
memcpy(g2buf.hdr.sfx, rptrbuf.vpkt.hdr.nm, 4);
/* set PFCS */
calcPFCS(g2buf.title, 56);
// The remote repeater has been set, lets fill in the dest_rptr
// so that later we can send that to the LIVE web site
memcpy(band_txt[i].dest_rptr, g2buf.hdr.rpt1, 8);
band_txt[i].dest_rptr[CALL_SIZE] = '\0';
// send to remote gateway
for (int j=0; j<5; j++)
sendto(g2_sock, g2buf.title, 56, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
printf("id=%04x Routing to IP=%s:%u ur=%.8s r1=%.8s r2=%.8s my=%.8s/%.4s\n",
ntohs(g2buf.streamid), inet_ntoa(to_remote_g2[i].toDst4.sin_addr), ntohs(to_remote_g2[i].toDst4.sin_port),
g2buf.hdr.urcall, g2buf.hdr.rpt1, g2buf.hdr.rpt2, g2buf.hdr.mycall, g2buf.hdr.sfx);
time(&(to_remote_g2[i].last_time));
}
}
}
}
}
else if (memcmp(rptrbuf.vpkt.hdr.ur, OWNER.c_str(), 7) && // urcall is not this repeater
0==memcmp(rptrbuf.vpkt.hdr.r1, OWNER.c_str(), 7) && // rpt1 is this repeater
(rptrbuf.vpkt.hdr.r1[7]>='A'&& rptrbuf.vpkt.hdr.r1[7]<='C') && // mod is A,B,C
0==memcmp(rptrbuf.vpkt.hdr.r2, OWNER.c_str(), 7) && // rpt2 is this repeater
rptrbuf.vpkt.hdr.r2[7]=='G' && // local Gateway
Flag_is_ok(rptrbuf.vpkt.hdr.flag[0])) {
memset(temp_radio_user, ' ', 8);
memcpy(temp_radio_user, rptrbuf.vpkt.hdr.ur, 8);
temp_radio_user[8] = '\0';
bool result = get_yrcall_rptr(temp_radio_user, arearp_cs, zonerp_cs, &temp_mod, ip, 'U');
if (result) {
/* destination is a remote system */
if (memcmp(zonerp_cs, OWNER.c_str(), 7) != 0) {
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
/* one radio user on a repeater module at a time */
if (to_remote_g2[i].toDst4.sin_addr.s_addr == 0) {
uint32_t address;
/* set the destination */
to_remote_g2[i].streamid = rptrbuf.vpkt.streamid;
memset(&to_remote_g2[i].toDst4, 0, sizeof(struct sockaddr_in));
to_remote_g2[i].toDst4.sin_family = AF_INET;
to_remote_g2[i].toDst4.sin_addr.s_addr = address = inet_addr(ip);
// if the address is in the portmap, we'll use that port instead of the default
auto theAddress = portmap.find(address);
to_remote_g2[i].toDst4.sin_port = htons((theAddress==portmap.end())? g2_external.port : theAddress->second);
memcpy(g2buf.title, "DSVT", 4);
g2buf.config = 0x10;
g2buf.flaga[0] = g2buf.flaga[1] = g2buf.flaga[2] = 0x00;
g2buf.id = rptrbuf.vpkt.icm_id;
g2buf.flagb[0] = rptrbuf.vpkt.dst_rptr_id;
g2buf.flagb[1] = rptrbuf.vpkt.snd_rptr_id;
g2buf.flagb[2] = rptrbuf.vpkt.snd_term_id;
g2buf.streamid = rptrbuf.vpkt.streamid;
g2buf.ctrl = rptrbuf.vpkt.ctrl;
memcpy(g2buf.hdr.flag, rptrbuf.vpkt.hdr.flag, 3);
/* set rpt1 */
memset(g2buf.hdr.rpt1, ' ', 8);
memcpy(g2buf.hdr.rpt1, arearp_cs, strlen(arearp_cs));
g2buf.hdr.rpt1[7] = temp_mod;
/* set rpt2 */
memset(g2buf.hdr.rpt2, ' ', 8);
memcpy(g2buf.hdr.rpt2, zonerp_cs, strlen(zonerp_cs));
g2buf.hdr.rpt2[7] = 'G';
/* set PFCS */
memcpy(g2buf.hdr.urcall, rptrbuf.vpkt.hdr.ur, 8);
memcpy(g2buf.hdr.mycall, rptrbuf.vpkt.hdr.my, 8);
memcpy(g2buf.hdr.sfx, rptrbuf.vpkt.hdr.nm, 4);
calcPFCS(g2buf.title, 56);
// The remote repeater has been set, lets fill in the dest_rptr
// so that later we can send that to the LIVE web site
memcpy(band_txt[i].dest_rptr, g2buf.hdr.rpt1, 8);
band_txt[i].dest_rptr[CALL_SIZE] = '\0';
/* send to remote gateway */
for (int j=0; j<5; j++)
sendto(g2_sock, g2buf.title, 56, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
printf("Routing to IP=%s:%u id=%04x my=%.8s/%.4s ur=%.8s rpt1=%.8s rpt2=%.8s\n", inet_ntoa(to_remote_g2[i].toDst4.sin_addr), ntohs(to_remote_g2[i].toDst4.sin_port), ntohs(g2buf.streamid), g2buf.hdr.mycall, g2buf.hdr.sfx, g2buf.hdr.urcall, g2buf.hdr.rpt1, g2buf.hdr.rpt2);
time(&(to_remote_g2[i].last_time));
}
}
}
else
{
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
/* the user we are trying to contact is on our gateway */
/* make sure they are on a different module */
if (temp_mod != rptrbuf.vpkt.hdr.r1[7]) {
/*
The remote repeater has been set, lets fill in the dest_rptr
so that later we can send that to the LIVE web site
*/
memcpy(band_txt[i].dest_rptr, rptrbuf.vpkt.hdr.r2, 8);
band_txt[i].dest_rptr[7] = temp_mod;
band_txt[i].dest_rptr[8] = '\0';
i = temp_mod - 'A';
/* valid destination repeater module? */
if (i>=0 && i<3) {
/*
toRptr[i] : receiving from a remote system or cross-band
band_txt[i] : local RF is talking.
*/
if ((toRptr[i].last_time == 0) && (band_txt[i].last_time == 0)) {
printf("CALLmode cross-banding from mod %c to %c\n", rptrbuf.vpkt.hdr.r1[7], temp_mod);
rptrbuf.vpkt.hdr.r2[7] = temp_mod;
rptrbuf.vpkt.hdr.r1[7] = 'G';
calcPFCS(rptrbuf.pkt_id, 58);
Gate2Modem[i].Write(rptrbuf.pkt_id, 58);
/* This is the active streamid */
toRptr[i].streamid = rptrbuf.vpkt.streamid;
/* time it, in case stream times out */
time(&toRptr[i].last_time);
/* bump the G2 counter */
toRptr[i].G2_COUNTER++;
toRptr[i].sequence = rptrbuf.vpkt.ctrl;
}
}
}
else
printf("icom rule: no routing from %.8s to %s%c\n", rptrbuf.vpkt.hdr.r1, arearp_cs, temp_mod);
}
}
}
else
{
if ('L' != rptrbuf.vpkt.hdr.ur[7]) // as long as this doesn't look like a linking command
playNotInCache = true; // we need to wait until user's transmission is over
}
}
}
else if (0 == memcmp(rptrbuf.vpkt.hdr.ur, " C0", 8)) {
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
/* voicemail file is closed */
if ((vm[i].fd == -1) && (vm[i].file[0] != '\0')) {
unlink(vm[i].file);
printf("removed voicemail file: %s\n", vm[i].file);
vm[i].file[0] = '\0';
} else
printf("No voicemail to clear or still recording\n");
}
}
else if (0 == memcmp(rptrbuf.vpkt.hdr.ur, " R0", 8)) {
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
/* voicemail file is closed */
if ((vm[i].fd == -1) && (vm[i].file[0] != '\0')) {
snprintf(vm[i].message, 21, "VOICEMAIL ON MOD %c ", 'A'+i);
try {
std::async(std::launch::async, &CQnetGateway::PlayFileThread, this, std::ref(vm[i]));
} catch (const std::exception &e) {
printf("Failed to start voicemail playback. Exception: %s\n", e.what());
}
} else
printf("No voicemail to recall or still recording\n");
}
}
else if (0 == memcmp(rptrbuf.vpkt.hdr.ur, " S0", 8)) {
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
if (vm[i].fd >= 0)
printf("Already recording for voicemail on mod %d\n", i);
else {
memset(tempfile, '\0', sizeof(tempfile));
snprintf(tempfile, FILENAME_MAX, "%s/%c_%s", echotest_dir.c_str(), rptrbuf.vpkt.hdr. r1[7], "voicemail.dat");
vm[i].fd = open(tempfile, O_CREAT | O_WRONLY | O_TRUNC | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (vm[i].fd < 0)
printf("Failed to create file %s for voicemail\n", tempfile);
else {
strcpy(vm[i].file, tempfile);
printf("Recording mod %c for voicemail into file:[%s]\n", rptrbuf.vpkt.hdr.r1[7], vm[i].file);
time(&vm[i].last_time);
vm[i].streamid = rptrbuf.vpkt.streamid;
memcpy(recbuf.title, "DSVT", 4);
recbuf.config = 0x10;
recbuf.flaga[0] = recbuf.flaga[1] = recbuf.flaga[2] = 0;
recbuf.id = rptrbuf.vpkt.icm_id;
recbuf.flagb[0] = rptrbuf.vpkt.dst_rptr_id;
recbuf.flagb[1] = rptrbuf.vpkt.snd_rptr_id;
recbuf.flagb[2] = rptrbuf.vpkt.snd_term_id;
memcpy(&recbuf.streamid, &rptrbuf.vpkt.streamid, 44);
memset(recbuf.hdr.rpt1, ' ', 8);
memcpy(recbuf.hdr.rpt1, OWNER.c_str(), OWNER.size());
recbuf.hdr.rpt1[7] = rptrbuf.vpkt.hdr.r1[7];
memset(recbuf.hdr.rpt2, ' ', 8);
memcpy(recbuf.hdr.rpt2, OWNER.c_str(), OWNER.size());
recbuf.hdr.rpt2[7] = 'G';
memcpy(recbuf.hdr.urcall, "CQCQCQ ", 8);
calcPFCS(recbuf.title, 56);
memcpy(vm[i].header.title, recbuf.title, 56);
}
}
}
}
else if (0 == memcmp(rptrbuf.vpkt.hdr.ur, " E", 8)) {
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
if (recd[i].fd >= 0)
printf("Already recording for echotest on mod %d\n", i);
else {
memset(tempfile, '\0', sizeof(tempfile));
snprintf(tempfile, FILENAME_MAX, "%s/%c_%s", echotest_dir.c_str(), rptrbuf.vpkt.hdr.r1[7], "echotest.dat");
recd[i].fd = open(tempfile, O_CREAT | O_WRONLY | O_EXCL | O_TRUNC | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (recd[i].fd < 0)
printf("Failed to create file %s for echotest\n", tempfile);
else {
strcpy(recd[i].file, tempfile);
printf("Recording mod %c for echotest into file:[%s]\n", rptrbuf.vpkt.hdr.r1[7], recd[i].file);
snprintf(recd[i].message, 21, "ECHO ON MODULE %c ", 'A' + i);
time(&recd[i].last_time);
recd[i].streamid = rptrbuf.vpkt.streamid;
memcpy(recbuf.title, "DSVT", 4);
recbuf.config = 0x10;
recbuf.id = rptrbuf.vpkt.icm_id;
recbuf.flaga[0] = recbuf.flaga[1] = recbuf.flaga[2] = 0;
recbuf.flagb[0] = rptrbuf.vpkt.dst_rptr_id;
recbuf.flagb[1] = rptrbuf.vpkt.snd_rptr_id;
recbuf.flagb[2] = rptrbuf.vpkt.snd_term_id;
memcpy(&recbuf.streamid, &rptrbuf.vpkt.streamid, 44);
memset(recbuf.hdr.rpt1, ' ', 8);
memcpy(recbuf.hdr.rpt1, OWNER.c_str(), OWNER.length());
recbuf.hdr.rpt1[7] = rptrbuf.vpkt.hdr.r1[7];
memset(recbuf.hdr.rpt2, ' ', 8);
memcpy(recbuf.hdr.rpt2, OWNER.c_str(), OWNER.length());
recbuf.hdr.rpt2[7] = 'G';
memcpy(recbuf.hdr.urcall, "CQCQCQ ", 8);
calcPFCS(recbuf.title, 56);
memcpy(recd[i].header.title, recbuf.title, 56);
}
}
}
/* check for cross-banding */
}
else if ( 0==memcmp(rptrbuf.vpkt.hdr.ur, "CQCQCQ", 6) && // yrcall is CQCQCQ
0==memcmp(rptrbuf.vpkt.hdr.r2, OWNER.c_str(), 7) && // rpt1 is this repeater
0==memcmp(rptrbuf.vpkt.hdr.r1, OWNER.c_str(), 7) && // rpt2 is this repeater
(rptrbuf.vpkt.hdr.r1[7]>='A' && rptrbuf.vpkt.hdr.r1[7]<='C') && // mod of rpt1 is A,B,C
(rptrbuf.vpkt.hdr.r2[7]>='A' && rptrbuf.vpkt.hdr.r2[7]<='C') && // !!! usually G on rpt2, but we see A,B,C with
rptrbuf.vpkt.hdr.r2[7]!=rptrbuf.vpkt.hdr.r1[7] ) { // cross-banding? make sure NOT the same
int i = rptrbuf.vpkt.hdr.r1[7] - 'A';
if (i>=0 && i<3) {
// The remote repeater has been set, lets fill in the dest_rptr
// so that later we can send that to the LIVE web site
memcpy(band_txt[i].dest_rptr, rptrbuf.vpkt.hdr.r2, 8);
band_txt[i].dest_rptr[8] = '\0';
}
i = rptrbuf.vpkt.hdr.r2[7] - 'A';
// valid destination repeater module?
if (i>=0 && i<3) {
// toRptr[i] : receiving from a remote system or cross-band
// band_txt[i] : local RF is talking.
if ((toRptr[i].last_time == 0) && (band_txt[i].last_time == 0)) {
printf("ZONEmode cross-banding from mod %c to %c\n", rptrbuf.vpkt.hdr.r1[7], rptrbuf.vpkt.hdr.r2[7]);
rptrbuf.vpkt.hdr.r1[7] = 'G';
calcPFCS(rptrbuf.pkt_id, 58);
Gate2Modem[i].Write(rptrbuf.pkt_id, 58);
/* This is the active streamid */
toRptr[i].streamid = rptrbuf.vpkt.streamid;
/* time it, in case stream times out */
time(&toRptr[i].last_time);
/* bump the G2 counter */
toRptr[i].G2_COUNTER ++;
toRptr[i].sequence = rptrbuf.vpkt.ctrl;
}
}
}
}
else
{ // recvlen is 29 or 32
for (int i=0; i<3; i++) {
if (band_txt[i].streamID == rptrbuf.vpkt.streamid) {
time(&band_txt[i].last_time);
if (rptrbuf.vpkt.ctrl & 0x40) { // end of voice data
if (dtmf_buf_count[i] > 0) {
dtmf_file = dtmf_dir;
dtmf_file.push_back('/');
dtmf_file.push_back('A'+i);
dtmf_file += "_mod_DTMF_NOTIFY";
if (bool_dtmf_debug)
printf("Saving dtmfs=[%s] into file: [%s]\n", dtmf_buf[i], dtmf_file.c_str());
FILE *dtmf_fp = fopen(dtmf_file.c_str(), "w");
if (dtmf_fp) {
fprintf(dtmf_fp, "%s\n%s", dtmf_buf[i], band_txt[i].lh_mycall);
fclose(dtmf_fp);
} else
printf("Failed to create dtmf file %s\n", dtmf_file.c_str());
if (bool_dtmf_debug)
printf("resetting dtmf[%d] (printed dtmf code %s from %s)\n", i, dtmf_buf[i], band_txt[i].lh_mycall);
memset(dtmf_buf[i], 0, sizeof(dtmf_buf[i]));
dtmf_buf_count[i] = 0;
dtmf_counter[i] = 0;
dtmf_last_frame[i] = 0;
}
if (! band_txt[i].sent_key_on_msg) {
band_txt[i].txt[0] = '\0';
if (memcmp(band_txt[i].lh_yrcall, "CQCQCQ", 6) == 0) {
set_dest_rptr(i, band_txt[i].dest_rptr);
if (memcmp(band_txt[i].dest_rptr, "REF", 3) == 0)
band_txt[i].dest_rptr[0] = '\0';
}
// we have the 20-character message, send it to the server...
ii->sendHeardWithTXMsg(band_txt[i].lh_mycall, band_txt[i].lh_sfx, (strstr(band_txt[i].lh_yrcall,"REF") == NULL)?band_txt[i].lh_yrcall:"CQCQCQ ", band_txt[i].lh_rpt1, band_txt[i].lh_rpt2, band_txt[i].flags[0], band_txt[i].flags[1], band_txt[i].flags[2], band_txt[i].dest_rptr, band_txt[i].txt);
band_txt[i].sent_key_on_msg = true;
}
// send the "key off" message, this will end up in the openquad.net Last Heard webpage.
ii->sendHeardWithTXStats(band_txt[i].lh_mycall, band_txt[i].lh_sfx, band_txt[i].lh_yrcall, band_txt[i].lh_rpt1, band_txt[i].lh_rpt2, band_txt[i].flags[0], band_txt[i].flags[1], band_txt[i].flags[2], band_txt[i].num_dv_frames, band_txt[i].num_dv_silent_frames, band_txt[i].num_bit_errors);
if (playNotInCache) {
// Not in cache, please try again!
FILE *fp = fopen(qnvoicefile.c_str(), "w");
if (fp) {
fprintf(fp, "%c_notincache.dat_NOT_IN_CACHE\n", band_txt[i].lh_rpt1[7]);
fclose(fp);
}
playNotInCache = false;
}
band_txt[i].streamID = 0;
band_txt[i].flags[0] = band_txt[i].flags[1] = band_txt[i].flags[2] = 0;
band_txt[i].lh_mycall[0] = '\0';
band_txt[i].lh_sfx[0] = '\0';
band_txt[i].lh_yrcall[0] = '\0';
band_txt[i].lh_rpt1[0] = '\0';
band_txt[i].lh_rpt2[0] = '\0';
band_txt[i].last_time = 0;
band_txt[i].txt[0] = '\0';
band_txt[i].txt_cnt = 0;
band_txt[i].dest_rptr[0] = '\0';
band_txt[i].num_dv_frames = 0;
band_txt[i].num_dv_silent_frames = 0;
band_txt[i].num_bit_errors = 0;
}
else
{ // not the end of the voice stream
int ber_data[3];
int ber_errs = dstar_dv_decode(rptrbuf.vpkt.vasd.voice, ber_data);
if (ber_data[0] == 0xf85)
band_txt[i].num_dv_silent_frames++;
band_txt[i].num_bit_errors += ber_errs;
band_txt[i].num_dv_frames++;
if ((ber_data[0] & 0x0ffc) == 0xfc0) {
dtmf_digit = (ber_data[0] & 0x03) | ((ber_data[2] & 0x60) >> 3);
if (dtmf_counter[i] > 0) {
if (dtmf_last_frame[i] != dtmf_digit)
dtmf_counter[i] = 0;
}
dtmf_last_frame[i] = dtmf_digit;
dtmf_counter[i]++;
if ((dtmf_counter[i] == 5) && (dtmf_digit >= 0) && (dtmf_digit <= 15)) {
if (dtmf_buf_count[i] < MAX_DTMF_BUF) {
const char *dtmf_chars = "147*2580369#ABCD";
dtmf_buf[i][ dtmf_buf_count[i] ] = dtmf_chars[dtmf_digit];
dtmf_buf_count[i]++;
}
}
const unsigned char silence[9] = { 0x9E, 0x8D, 0x32, 0x88, 0x26, 0x1A, 0x3F, 0x61, 0xE8 };
if (recvlen == 29)
memcpy(rptrbuf.vpkt.vasd.voice, silence, 9);
else
memcpy(rptrbuf.vpkt.vasd1.voice, silence, 9);
} else
dtmf_counter[i] = 0;
}
break;
}
}
vPacketCount++;
if (recvlen == 29) // process the slow data from every voice packet
ProcessSlowData(rptrbuf.vpkt.vasd.text, rptrbuf.vpkt.streamid);
else
ProcessSlowData(rptrbuf.vpkt.vasd1.text, rptrbuf.vpkt.streamid);
/* send data to qnlink */
Gate2Link.Write(rptrbuf.pkt_id, recvlen);
/* aprs processing */
if (bool_send_aprs)
// streamID seq audio+text
aprs->ProcessText(ntohs(rptrbuf.vpkt.streamid), rptrbuf.vpkt.ctrl, rptrbuf.vpkt.vasd.voice);
for (int i=0; i<3; i++) {
/* find out if data must go to the remote G2 */
if (to_remote_g2[i].streamid == rptrbuf.vpkt.streamid) {
memcpy(g2buf.title, "DSVT", 4);
g2buf.config = 0x20;
g2buf.flaga[0] = g2buf.flaga[1] = g2buf.flaga[2] = 0;
memcpy(&g2buf.id, &rptrbuf.vpkt.icm_id, 7);
if (recvlen == 29)
memcpy(g2buf.vasd.voice, rptrbuf.vpkt.vasd.voice, 12);
else
memcpy(g2buf.vasd.voice, rptrbuf.vpkt.vasd1.voice, 12);
uint32_t address = to_remote_g2[i].toDst4.sin_addr.s_addr;
// if the address is in the portmap, we'll use that port instead of the default
auto theAddress = portmap.find(address);
to_remote_g2[i].toDst4.sin_port = htons((theAddress==portmap.end())? g2_external.port : theAddress->second);
sendto(g2_sock, g2buf.title, 27, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
time(&(to_remote_g2[i].last_time));
/* Is this the end-of-stream */
if (rptrbuf.vpkt.ctrl & 0x40) {
memset(&to_remote_g2[i].toDst4,0,sizeof(struct sockaddr_in));
to_remote_g2[i].streamid = 0;
to_remote_g2[i].last_time = 0;
}
break;
}
else if (recd[i].fd>=0 && recd[i].streamid==rptrbuf.vpkt.streamid) { // Is the data to be recorded for echotest
time(&recd[i].last_time);
if (recvlen == 29)
(void)write(recd[i].fd, rptrbuf.vpkt.vasd.voice, 9);
else
(void)write(recd[i].fd, rptrbuf.vpkt.vasd1.voice, 9);
if ((rptrbuf.vpkt.ctrl & 0x40) != 0) {
recd[i].streamid = 0;
recd[i].last_time = 0;
close(recd[i].fd);
recd[i].fd = -1;
// printf("Closed echotest audio file:[%s]\n", recd[i].file);
/* we are in echotest mode, so play it back */
try {
std::async(std::launch::async, &CQnetGateway::PlayFileThread, this, std::ref(recd[i]));
} catch (const std::exception &e) {
printf("failed to start PlayFileThread. Exception: %s\n", e.what());
// When the echotest thread runs, it deletes the file,
// Because the echotest thread did NOT start, we delete the file here
unlink(recd[i].file);
}
}
break;
}
else if ((vm[i].fd >= 0) && (vm[i].streamid==rptrbuf.vpkt.streamid)) { // Is the data to be recorded for voicemail
time(&vm[i].last_time);
if (recvlen == 29)
(void)write(vm[i].fd, rptrbuf.vpkt.vasd.voice, 9);
else
(void)write(vm[i].fd, rptrbuf.vpkt.vasd1.voice, 9);
if ((rptrbuf.vpkt.ctrl & 0x40) != 0) {
vm[i].streamid = 0;
vm[i].last_time = 0;
close(vm[i].fd);
vm[i].fd = -1;
// printf("Closed voicemail audio file:[%s]\n", vm[i].file);
}
break;
}
else if (toRptr[i].streamid == rptrbuf.vpkt.streamid) { // or maybe this is cross-banding data
Gate2Modem[i].Write(rptrbuf.pkt_id, 29);
/* timeit */
time(&toRptr[i].last_time);
/* bump G2 counter */
toRptr[i].G2_COUNTER ++;
toRptr[i].sequence = rptrbuf.vpkt.ctrl;
/* End of stream ? */
if (rptrbuf.vpkt.ctrl & 0x40) {
toRptr[i].last_time = 0;
toRptr[i].streamid = 0;
toRptr[i].adr = 0;
}
break;
}
}
if (bool_qso_details && rptrbuf.vpkt.ctrl&0x40U)
printf("id=%04x cntr=%04x END RPTR\n", ntohs(rptrbuf.vpkt.streamid), ntohs(rptrbuf.counter));
}
}
}
}
void CQnetGateway::AddFDSet(int &max, int newfd, fd_set *set)
{
if (newfd > max)
max = newfd;
FD_SET(newfd, set);
}
/* run the main loop for QnetGateway */
void CQnetGateway::Process()
{
// dtmf stuff initialize
for (int i=0; i<3; i++) {
dtmf_buf_count[i] = 0;
dtmf_buf[i][0] = '\0';
dtmf_last_frame[i] = 0;
dtmf_counter[i] = 0U;
}
dstar_dv_init();
std::future<void> aprs_future, irc_data_future;
if (bool_send_aprs) { // start the beacon thread
try {
aprs_future = std::async(std::launch::async, &CQnetGateway::APRSBeaconThread, this);
} catch (const std::exception &e) {
printf("Failed to start the APRSBeaconThread. Exception: %s\n", e.what());
}
if (aprs_future.valid())
printf("APRS beacon thread started\n");
}
try { // start the IRC read thread
irc_data_future = std::async(std::launch::async, &CQnetGateway::GetIRCDataThread, this);
} catch (const std::exception &e) {
printf("Failed to start GetIRCDataThread. Exception: %s\n", e.what());
keep_running = false;
}
if (keep_running)
printf("get_irc_data thread started\n");
ii->kickWatchdog(IRCDDB_VERSION);
while (keep_running) {
ProcessTimeouts();
// wait 20 ms max
int max_nfds = 0;
fd_set fdset;
FD_ZERO(&fdset);
AddFDSet(max_nfds, g2_sock, &fdset);
AddFDSet(max_nfds, Link2Gate.GetFD(), &fdset);
AddFDSet(max_nfds, Modem2Gate.GetFD(), &fdset);
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 20000; // 20 ms
(void)select(max_nfds + 1, &fdset, 0, 0, &tv);
// process packets coming from remote G2
if (keep_running && FD_ISSET(g2_sock, &fdset)) {
SDSVT g2buf;
socklen_t fromlen = sizeof(struct sockaddr_in);
ssize_t g2buflen = recvfrom(g2_sock, g2buf.title, 56, 0, (struct sockaddr *)&fromDst4, &fromlen);
// save incoming port for mobile systems
if (portmap.end() == portmap.find(fromDst4.sin_addr.s_addr)) {
printf("New g2 contact at %s on port %u\n", inet_ntoa(fromDst4.sin_addr), ntohs(fromDst4.sin_port));
portmap[fromDst4.sin_addr.s_addr] = ntohs(fromDst4.sin_port);
} else {
if (ntohs(fromDst4.sin_port) != portmap[fromDst4.sin_addr.s_addr]) {
printf("New g2 port from %s is now %u, it was %u\n", inet_ntoa(fromDst4.sin_addr), ntohs(fromDst4.sin_port), portmap[fromDst4.sin_addr.s_addr]);
portmap[fromDst4.sin_addr.s_addr] = ntohs(fromDst4.sin_port);
}
}
ProcessG2(g2buflen, g2buf, true);
FD_CLR(g2_sock, &fdset);
}
// process packets from qnlink
if (keep_running && FD_ISSET(Link2Gate.GetFD(), &fdset)) {
SDSVT g2buf;
ssize_t g2buflen = Link2Gate.Read(g2buf.title, 56);
ProcessG2(g2buflen, g2buf, false);
FD_CLR(Link2Gate.GetFD(), &fdset);
}
// process packets coming from local repeater module(s)
if (keep_running && FD_ISSET(Modem2Gate.GetFD(), &fdset)) {
ProcessModem();
FD_CLR(Modem2Gate.GetFD(), &fdset);
}
}
// thread clean-up
if (bool_send_aprs) {
if (aprs_future.valid())
aprs_future.get();
}
irc_data_future.get();
return;
}
void CQnetGateway::compute_aprs_hash()
{
short hash = 0x73e2;
char rptr_sign[CALL_SIZE + 1];
strcpy(rptr_sign, OWNER.c_str());
char *p = strchr(rptr_sign, ' ');
if (!p) {
printf("Failed to build repeater callsign for aprs hash\n");
return;
}
*p = '\0';
p = rptr_sign;
short int len = strlen(rptr_sign);
for (short int i=0; i < len; i+=2) {
hash ^= (*p++) << 8;
hash ^= (*p++);
}
printf("aprs hash code=[%d] for %s\n", hash, OWNER.c_str());
rptr.aprs_hash = hash;
return;
}
void CQnetGateway::APRSBeaconThread()
{
char snd_buf[512];
char rcv_buf[512];
time_t tnow = 0;
struct sigaction act;
/*
Every 20 seconds, the remote APRS host sends a KEEPALIVE packet-comment
on the TCP/APRS port.
If we have not received any KEEPALIVE packet-comment after 5 minutes
we must assume that the remote APRS host is down or disappeared
or has dropped the connection. In these cases, we must re-connect.
There are 3 keepalive packets in one minute, or every 20 seconds.
In 5 minutes, we should have received a total of 15 keepalive packets.
*/
short THRESHOLD_COUNTDOWN = 15;
act.sa_handler = sigCatch;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_RESTART;
if (sigaction(SIGTERM, &act, 0) != 0) {
printf("APRSBeaconThread: sigaction-TERM failed, error=%d\n", errno);
return;
}
if (sigaction(SIGINT, &act, 0) != 0) {
printf("APRSBeaconThread: sigaction-INT failed, error=%d\n", errno);
return;
}
if (sigaction(SIGPIPE, &act, 0) != 0) {
printf("APRSBeaconThread: sigaction-PIPE failed, error=%d\n", errno);
return;
}
time_t last_keepalive_time;
time(&last_keepalive_time);
time_t last_beacon_time = 0;
/* This thread is also saying to the APRS_HOST that we are ALIVE */
while (keep_running) {
if (aprs->GetSock() == -1) {
aprs->Open(OWNER);
if (aprs->GetSock() == -1)
sleep(1);
else
THRESHOLD_COUNTDOWN = 15;
}
time(&tnow);
if ((tnow - last_beacon_time) > (rptr.aprs_interval * 60)) {
for (short int i=0; i<3; i++) {
if (rptr.mod[i].desc[0] != '\0') {
float tmp_lat = fabs(rptr.mod[i].latitude);
float tmp_lon = fabs(rptr.mod[i].longitude);
float lat = floor(tmp_lat);
float lon = floor(tmp_lon);
lat = (tmp_lat - lat) * 60.0F + lat * 100.0F;
lon = (tmp_lon - lon) * 60.0F + lon * 100.0F;
char lat_s[15], lon_s[15];
if (lat >= 1000.0F)
sprintf(lat_s, "%.2f", lat);
else if (lat >= 100.0F)
sprintf(lat_s, "0%.2f", lat);
else if (lat >= 10.0F)
sprintf(lat_s, "00%.2f", lat);
else
sprintf(lat_s, "000%.2f", lat);
if (lon >= 10000.0F)
sprintf(lon_s, "%.2f", lon);
else if (lon >= 1000.0F)
sprintf(lon_s, "0%.2f", lon);
else if (lon >= 100.0F)
sprintf(lon_s, "00%.2f", lon);
else if (lon >= 10.0F)
sprintf(lon_s, "000%.2f", lon);
else
sprintf(lon_s, "0000%.2f", lon);
/* send to aprs */
sprintf(snd_buf, "%s>APJI23,TCPIP*,qAC,%sS:!%s%cD%s%c&RNG%04u %s %s",
rptr.mod[i].call.c_str(), rptr.mod[i].call.c_str(),
lat_s, (rptr.mod[i].latitude < 0.0) ? 'S' : 'N',
lon_s, (rptr.mod[i].longitude < 0.0) ? 'W' : 'E',
(unsigned int)rptr.mod[i].range, rptr.mod[i].band.c_str(), rptr.mod[i].desc.c_str());
// printf("APRS Beacon =[%s]\n", snd_buf);
strcat(snd_buf, "\r\n");
while (keep_running) {
if (aprs->GetSock() == -1) {
aprs->Open(OWNER);
if (aprs->GetSock() == -1)
sleep(1);
else
THRESHOLD_COUNTDOWN = 15;
} else {
int rc = aprs->WriteSock(snd_buf, strlen(snd_buf));
if (rc < 0) {
if ((errno == EPIPE) ||
(errno == ECONNRESET) ||
(errno == ETIMEDOUT) ||
(errno == ECONNABORTED) ||
(errno == ESHUTDOWN) ||
(errno == EHOSTUNREACH) ||
(errno == ENETRESET) ||
(errno == ENETDOWN) ||
(errno == ENETUNREACH) ||
(errno == EHOSTDOWN) ||
(errno == ENOTCONN)) {
printf("send_aprs_beacon: APRS_HOST closed connection,error=%d\n",errno);
close(aprs->GetSock());
aprs->SetSock( -1 );
} else if (errno == EWOULDBLOCK) {
std::this_thread::sleep_for(std::chrono::milliseconds(100));
} else {
/* Cant do nothing about it */
printf("send_aprs_beacon failed, error=%d\n", errno);
break;
}
} else {
// printf("APRS beacon sent\n");
break;
}
}
int rc = recv(aprs->GetSock(), rcv_buf, sizeof(rcv_buf), 0);
if (rc > 0)
THRESHOLD_COUNTDOWN = 15;
}
}
int rc = recv(aprs->GetSock(), rcv_buf, sizeof(rcv_buf), 0);
if (rc > 0)
THRESHOLD_COUNTDOWN = 15;
}
time(&last_beacon_time);
}
/*
Are we still receiving from APRS host ?
*/
int rc = recv(aprs->GetSock(), rcv_buf, sizeof(rcv_buf), 0);
if (rc < 0) {
if ((errno == EPIPE) ||
(errno == ECONNRESET) ||
(errno == ETIMEDOUT) ||
(errno == ECONNABORTED) ||
(errno == ESHUTDOWN) ||
(errno == EHOSTUNREACH) ||
(errno == ENETRESET) ||
(errno == ENETDOWN) ||
(errno == ENETUNREACH) ||
(errno == EHOSTDOWN) ||
(errno == ENOTCONN)) {
printf("send_aprs_beacon: recv error: APRS_HOST closed connection,error=%d\n",errno);
close(aprs->GetSock());
aprs->SetSock( -1 );
}
} else if (rc == 0) {
printf("send_aprs_beacon: recv: APRS shutdown\n");
close(aprs->GetSock());
aprs->SetSock( -1 );
} else
THRESHOLD_COUNTDOWN = 15;
std::this_thread::sleep_for(std::chrono::milliseconds(100));
/* 20 seconds passed already ? */
time(&tnow);
if ((tnow - last_keepalive_time) > 20) {
/* we should be receving keepalive packets ONLY if the connection is alive */
if (aprs->GetSock() >= 0) {
if (THRESHOLD_COUNTDOWN > 0)
THRESHOLD_COUNTDOWN--;
if (THRESHOLD_COUNTDOWN == 0) {
printf("APRS host keepalive timeout\n");
close(aprs->GetSock());
aprs->SetSock( -1 );
}
}
/* reset timer */
time(&last_keepalive_time);
}
}
printf("APRS beacon thread exiting...\n");
return;
}
void CQnetGateway::PlayFileThread(SECHO &edata)
{
SDSTR dstr;
const unsigned char sdsilence[3] = { 0x16U, 0x29U, 0xF5U };
const unsigned char sdsync[3] = { 0x55U, 0x2DU, 0x16U };
struct sigaction act;
act.sa_handler = sigCatch;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_RESTART;
if (sigaction(SIGTERM, &act, 0) != 0) {
printf("sigaction-TERM failed, error=%d\n", errno);
return;
}
if (sigaction(SIGINT, &act, 0) != 0) {
printf("sigaction-INT failed, error=%d\n", errno);
return;
}
if (sigaction(SIGPIPE, &act, 0) != 0) {
printf("sigaction-PIPE failed, error=%d\n", errno);
return;
}
printf("File to playback:[%s]\n", edata.file);
struct stat sbuf;
if (stat(edata.file, &sbuf)) {
fprintf(stderr, "Can't stat %s\n", edata.file);
return;
}
if (sbuf.st_size % 9)
printf("Warning %s file size is %ld (not a multiple of 9)!\n", edata.file, sbuf.st_size);
int ambeblocks = (int)sbuf.st_size / 9;
FILE *fp = fopen(edata.file, "rb");
if (!fp) {
fprintf(stderr, "Failed to open file %s\n", edata.file);
return;
}
int mod = edata.header.hdr.rpt1[7] - 'A';
if (mod<0 || mod>2) {
fprintf(stderr, "unknown module suffix '%s'\n", edata.header.hdr.rpt1);
return;
}
sleep(play_wait);
// reformat the header and send it
memcpy(dstr.pkt_id, "DSTR", 4);
dstr.counter = htons(toRptr[mod].G2_COUNTER++);
dstr.flag[0] = 0x73;
dstr.flag[1] = 0x12;
dstr.flag[2] = 0x00;
dstr.remaining = 0x30;
dstr.vpkt.icm_id = 0x20;
dstr.vpkt.dst_rptr_id = edata.header.flagb[0];
dstr.vpkt.snd_rptr_id = edata.header.flagb[1];
dstr.vpkt.snd_term_id = edata.header.flagb[2];
dstr.vpkt.streamid = edata.header.streamid;
dstr.vpkt.ctrl = 0x80u;
memcpy(dstr.vpkt.hdr.flag, edata.header.hdr.flag, 3);
memcpy(dstr.vpkt.hdr.r1, edata.header.hdr.rpt1, 8);
memcpy(dstr.vpkt.hdr.r2, edata.header.hdr.rpt2, 8);
memcpy(dstr.vpkt.hdr.ur, "CQCQCQ ", 8);
memcpy(dstr.vpkt.hdr.my, edata.header.hdr.mycall, 8);
memcpy(dstr.vpkt.hdr.nm, edata.header.hdr.sfx, 4);
calcPFCS(dstr.pkt_id, 58);
Gate2Modem[mod].Write(dstr.pkt_id, 58);
dstr.remaining = 0x13U;
for (int i=0; i<ambeblocks; i++) {
int nread = fread(dstr.vpkt.vasd.voice, 9, 1, fp);
if (nread == 1) {
dstr.counter = htons(toRptr[mod].G2_COUNTER++);
dstr.vpkt.ctrl = (unsigned char)(i % 21);
if (0x0U == dstr.vpkt.ctrl) {
memcpy(dstr.vpkt.vasd.text, sdsync, 3);
} else {
switch (i) {
case 1:
dstr.vpkt.vasd.text[0] = '@' ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[0] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[1] ^ 0x93;
break;
case 2:
dstr.vpkt.vasd.text[0] = edata.message[2] ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[3] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[4] ^ 0x93;
break;
case 3:
dstr.vpkt.vasd.text[0] = 'A' ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[5] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[6] ^ 0x93;
break;
case 4:
dstr.vpkt.vasd.text[0] = edata.message[7] ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[8] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[9] ^ 0x93;
break;
case 5:
dstr.vpkt.vasd.text[0] = 'B' ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[10] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[11] ^ 0x93;
break;
case 6:
dstr.vpkt.vasd.text[0] = edata.message[12] ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[13] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[14] ^ 0x93;
break;
case 7:
dstr.vpkt.vasd.text[0] = 'C' ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[15] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[16] ^ 0x93;
break;
case 8:
dstr.vpkt.vasd.text[0] = edata.message[17] ^ 0x70;
dstr.vpkt.vasd.text[1] = edata.message[18] ^ 0x4f;
dstr.vpkt.vasd.text[2] = edata.message[19] ^ 0x93;
break;
default:
memcpy(dstr.vpkt.vasd.text, sdsilence, 3);
break;
}
}
if (i+1 == ambeblocks)
dstr.vpkt.ctrl |= 0x40U;
Gate2Modem[mod].Write(dstr.pkt_id, 29);
std::this_thread::sleep_for(std::chrono::milliseconds(play_delay));
}
}
fclose(fp);
printf("Finished playing\n");
// if it's an echo file, delete it!
if (strstr(edata.file, "echotest.dat")) {
unlink(edata.file);
edata.file[0] = edata.message[0] = '\0';
}
return;
}
void CQnetGateway::qrgs_and_maps()
{
for (int i=0; i<3; i++) {
std::string rptrcall = OWNER;
rptrcall.resize(CALL_SIZE-1);
rptrcall += i + 'A';
if (rptr.mod[i].latitude || rptr.mod[i].longitude || rptr.mod[i].desc1.length() || rptr.mod[i].url.length())
ii->rptrQTH(rptrcall, rptr.mod[i].latitude, rptr.mod[i].longitude, rptr.mod[i].desc1, rptr.mod[i].desc2, rptr.mod[i].url, rptr.mod[i].package_version);
if (rptr.mod[i].frequency)
ii->rptrQRG(rptrcall, rptr.mod[i].frequency, rptr.mod[i].offset, rptr.mod[i].range, rptr.mod[i].agl);
}
return;
}
int CQnetGateway::Init(char *cfgfile)
{
short int i;
struct sigaction act;
setvbuf(stdout, (char *)NULL, _IOLBF, 0);
/* Used to validate MYCALL input */
int rc = regcomp(&preg, "^(([1-9][A-Z])|([A-Z][0-9])|([A-Z][A-Z][0-9]))[0-9A-Z]*[A-Z][ ]*[ A-RT-Z]$", REG_EXTENDED | REG_NOSUB);
if (rc != REG_NOERROR) {
printf("The IRC regular expression is NOT valid\n");
return 1;
}
act.sa_handler = sigCatch;
sigemptyset(&act.sa_mask);
act.sa_flags = SA_RESTART;
if (sigaction(SIGTERM, &act, 0) != 0) {
printf("sigaction-TERM failed, error=%d\n", errno);
return 1;
}
if (sigaction(SIGINT, &act, 0) != 0) {
printf("sigaction-INT failed, error=%d\n", errno);
return 1;
}
if (sigaction(SIGPIPE, &act, 0) != 0) {
printf("sigaction-PIPE failed, error=%d\n", errno);
return 1;
}
for (i = 0; i < 3; i++)
memset(&band_txt[0], 0, sizeof(SBANDTXT));
/* process configuration file */
if ( read_config(cfgfile) ) {
printf("Failed to process config file %s\n", cfgfile);
return 1;
}
playNotInCache = false;
/* build the repeater callsigns for aprs */
rptr.mod[0].call = OWNER;
for (i=OWNER.length(); i; i--)
if (! isspace(OWNER[i-1]))
break;
rptr.mod[0].call.resize(i);
rptr.mod[1].call = rptr.mod[0].call;
rptr.mod[2].call = rptr.mod[0].call;
rptr.mod[0].call += "-A";
rptr.mod[1].call += "-B";
rptr.mod[2].call += "-C";
rptr.mod[0].band = "23cm";
rptr.mod[1].band = "70cm";
rptr.mod[2].band = "2m";
printf("Repeater callsigns: [%s] [%s] [%s]\n", rptr.mod[0].call.c_str(), rptr.mod[1].call.c_str(), rptr.mod[2].call.c_str());
for (i = 0; i < 3; i++) {
//rptr.mod[i].frequency = rptr.mod[i].offset = rptr.mod[i].latitude = rptr.mod[i].longitude = rptr.mod[i].agl = rptr.mod[i].range = 0.0;
band_txt[i].streamID = 0;
band_txt[i].flags[0] = band_txt[i].flags[1] = band_txt[i].flags[2] = 0;
band_txt[i].lh_mycall[0] = '\0';
band_txt[i].lh_sfx[0] = '\0';
band_txt[i].lh_yrcall[0] = '\0';
band_txt[i].lh_rpt1[0] = '\0';
band_txt[i].lh_rpt2[0] = '\0';
band_txt[i].last_time = 0;
band_txt[i].txt[0] = '\0';
band_txt[i].txt_cnt = 0;
band_txt[i].sent_key_on_msg = false;
band_txt[i].dest_rptr[0] = '\0';
band_txt[i].temp_line[0] = '\0';
band_txt[i].temp_line_cnt = 0;
band_txt[i].gprmc[0] = '\0';
band_txt[i].gpid[0] = '\0';
band_txt[i].is_gps_sent = false;
band_txt[i].gps_last_time = 0;
band_txt[i].num_dv_frames = 0;
band_txt[i].num_dv_silent_frames = 0;
band_txt[i].num_bit_errors = 0;
}
if (bool_send_aprs) {
aprs = new CAPRS(&rptr);
if (aprs)
aprs->Init();
else {
printf("aprs class init failed!\nAPRS will be turned off");
bool_send_aprs = false;
}
}
compute_aprs_hash();
ii = new CIRCDDB(ircddb.ip, ircddb.port, owner, irc_pass, IRCDDB_VERSION, local_irc_ip);
bool ok = ii->open();
if (!ok) {
printf("irc open failed\n");
return 1;
}
rc = ii->getConnectionState();
printf("Waiting for irc connection status of 2\n");
i = 0;
while (rc < 2) {
printf("irc status=%d\n", rc);
if (rc < 2) {
i++;
sleep(5);
} else
break;
if (!keep_running)
break;
if (i > 5) {
printf("We can not wait any longer...\n");
break;
}
rc = ii->getConnectionState();
}
/* udp port 40000 must open first */
g2_sock = open_port(g2_external);
if (0 > g2_sock) {
printf("Can't open %s:%d\n", g2_external.ip.c_str(), g2_external.port);
return 1;
}
// Open unix sockets between qngateway and qnlink
Gate2Link.SetUp(gate2link.c_str());
if (Link2Gate.Open(link2gate.c_str()))
return 1;
if (Modem2Gate.Open(modem2gate.c_str()))
return 1;
for (i=0; i<3; i++) {
if (rptr.mod[i].defined) { // open unix sockets between qngateway and each defined modem
Gate2Modem[i].SetUp(gate2modem[i].c_str());
}
// recording for echotest on local repeater modules
recd[i].last_time = 0;
recd[i].streamid = 0;
recd[i].fd = -1;
memset(recd[i].file, 0, sizeof(recd[i].file));
// recording for voicemail on local repeater modules
vm[i].last_time = 0;
vm[i].streamid = 0;
vm[i].fd = -1;
memset(vm[i].file, 0, sizeof(vm[i].file));
snprintf(vm[i].file, FILENAME_MAX, "%s/%c_%s", echotest_dir.c_str(), 'A'+i, "voicemail.dat");
if (access(vm[i].file, F_OK) != 0)
memset(vm[i].file, 0, sizeof(vm[i].file));
else
printf("Loaded voicemail file: %s for mod %d\n", vm[i].file, i);
// the repeater modules run on these ports
memset(&toRptr[i],0,sizeof(toRptr[i]));
memset(toRptr[i].saved_hdr.pkt_id, 0, 58);
toRptr[i].saved_adr = 0;
toRptr[i].streamid = 0;
toRptr[i].adr = 0;
toRptr[i].band_addr.sin_family = AF_INET;
toRptr[i].band_addr.sin_addr.s_addr = inet_addr(rptr.mod[i].portip.ip.c_str());
toRptr[i].band_addr.sin_port = htons(rptr.mod[i].portip.port);
toRptr[i].last_time = 0;
toRptr[i].G2_COUNTER = 0;
toRptr[i].sequence = 0x0;
}
/*
Initialize the end_of_audio that will be sent to the local repeater
when audio from remote G2 has timed out
*/
memcpy(end_of_audio.pkt_id, "DSTR", 4);
end_of_audio.flag[0] = 0x73U;
end_of_audio.flag[1] = 0x12U;
end_of_audio.flag[2] = 0x00U;
end_of_audio.remaining = 0x13U;
end_of_audio.vpkt.icm_id = 0x20U;
end_of_audio.vpkt.dst_rptr_id = 0x0U;
end_of_audio.vpkt.snd_rptr_id = 0x01U;
memset(end_of_audio.vpkt.vasd.voice, 0x0U, 9);
end_of_audio.vpkt.vasd.text[0] = 0x70U;
end_of_audio.vpkt.vasd.text[1] = 0x4FU;
end_of_audio.vpkt.vasd.text[2] = 0x93U;
/* to remote systems */
for (i = 0; i < 3; i++) {
memset(&to_remote_g2[i].toDst4, 0, sizeof(struct sockaddr_in));
to_remote_g2[i].streamid = 0;
to_remote_g2[i].last_time = 0;
}
printf("QnetGateway...entering processing loop\n");
if (bool_send_qrgs)
qrgs_and_maps();
return 0;
}
CQnetGateway::CQnetGateway()
{
}
CQnetGateway::~CQnetGateway()
{
Link2Gate.Close();
Modem2Gate.Close();
if (g2_sock != -1) {
close(g2_sock);
printf("Closed G2_EXTERNAL_PORT\n");
}
if (bool_send_aprs) {
if (aprs->GetSock() != -1) {
close(aprs->GetSock());
printf("Closed APRS\n");
}
delete aprs;
}
for (int i=0; i<3; i++) {
recd[i].last_time = 0;
recd[i].streamid = 0;
if (recd[i].fd >= 0) {
close(recd[i].fd);
unlink(recd[i].file);
}
}
ii->close();
delete ii;
printf("QnetGateway exiting\n");
}
bool CQnetGateway::validate_csum(SBANDTXT &bt, bool is_gps)
{
const char *name = is_gps ? "GPS" : "GPRMC";
char *s = is_gps ? bt.gpid : bt.gprmc;
char *p = strrchr(s, '*');
if (!p) {
// BAD news, something went wrong
printf("Missing asterisk before checksum in %s\n", name);
bt.gprmc[0] = bt.gpid[0] = '\0';
return true;
} else {
*p = '\0';
// verify csum in GPRMC
bool ok = verify_gps_csum(s + 1, p + 1);
if (!ok) {
printf("csum in %s not good\n", name);
bt.gprmc[0] = bt.gpid[0] = '\0';
return true;
}
}
return false;
}
void CQnetGateway::gps_send(short int rptr_idx)
{
time_t tnow = 0;
static char old_mycall[CALL_SIZE + 1] = { " " };
if ((rptr_idx < 0) || (rptr_idx > 2)) {
printf("ERROR in gps_send: rptr_idx %d is invalid\n", rptr_idx);
return;
}
if (band_txt[rptr_idx].gprmc[0] == '\0') {
band_txt[rptr_idx].gpid[0] = '\0';
printf("missing GPS ID\n");
return;
}
if (band_txt[rptr_idx].gpid[0] == '\0') {
band_txt[rptr_idx].gprmc[0] = '\0';
printf("Missing GPSRMC\n");
return;
}
if (memcmp(band_txt[rptr_idx].gpid, band_txt[rptr_idx].lh_mycall, CALL_SIZE) != 0) {
printf("MYCALL [%s] does not match first 8 characters of GPS ID [%.8s]\n", band_txt[rptr_idx].lh_mycall, band_txt[rptr_idx].gpid);
band_txt[rptr_idx].gprmc[0] = '\0';
band_txt[rptr_idx].gpid[0] = '\0';
return;
}
/* if new station, reset last time */
if (strcmp(old_mycall, band_txt[rptr_idx].lh_mycall) != 0) {
strcpy(old_mycall, band_txt[rptr_idx].lh_mycall);
band_txt[rptr_idx].gps_last_time = 0;
}
/* do NOT process often */
time(&tnow);
if ((tnow - band_txt[rptr_idx].gps_last_time) < 31)
return;
printf("GPRMC=[%s]\n", band_txt[rptr_idx].gprmc);
printf("GPS id=[%s]\n",band_txt[rptr_idx].gpid);
if (validate_csum(band_txt[rptr_idx], false)) // || validate_csum(band_txt[rptr_idx], true))
return;
/* now convert GPS into APRS and send it */
build_aprs_from_gps_and_send(rptr_idx);
band_txt[rptr_idx].is_gps_sent = true;
time(&(band_txt[rptr_idx].gps_last_time));
return;
}
void CQnetGateway::build_aprs_from_gps_and_send(short int rptr_idx)
{
char buf[512];
const char *delim = ",";
char *saveptr = NULL;
/*** dont care about the rest */
strcpy(buf, band_txt[rptr_idx].lh_mycall);
char *p = strchr(buf, ' ');
if (p) {
if (band_txt[rptr_idx].lh_mycall[7] != ' ') {
*p = '-';
*(p + 1) = band_txt[rptr_idx].lh_mycall[7];
*(p + 2) = '>';
*(p + 3) = '\0';
} else {
*p = '>';
*(p + 1) = '\0';
}
} else
strcat(buf, ">");
strcat(buf, "APDPRS,DSTAR*,qAR,");
strcat(buf, rptr.mod[rptr_idx].call.c_str());
strcat(buf, ":!");
//GPRMC =
strtok_r(band_txt[rptr_idx].gprmc, delim, &saveptr);
//time_utc =
strtok_r(NULL, delim, &saveptr);
//nav =
strtok_r(NULL, delim, &saveptr);
char *lat_str = strtok_r(NULL, delim, &saveptr);
char *lat_NS = strtok_r(NULL, delim, &saveptr);
char *lon_str = strtok_r(NULL, delim, &saveptr);
char *lon_EW = strtok_r(NULL, delim, &saveptr);
if (lat_str && lat_NS) {
if ((*lat_NS != 'N') && (*lat_NS != 'S')) {
printf("Invalid North or South indicator in latitude\n");
return;
}
if (strlen(lat_str) > 9) {
printf("Invalid latitude\n");
return;
}
if (lat_str[4] != '.') {
printf("Invalid latitude\n");
return;
}
lat_str[7] = '\0';
strcat(buf, lat_str);
strcat(buf, lat_NS);
} else {
printf("Invalid latitude\n");
return;
}
/* secondary table */
strcat(buf, "/");
if (lon_str && lon_EW) {
if ((*lon_EW != 'E') && (*lon_EW != 'W')) {
printf("Invalid East or West indicator in longitude\n");
return;
}
if (strlen(lon_str) > 10) {
printf("Invalid longitude\n");
return;
}
if (lon_str[5] != '.') {
printf("Invalid longitude\n");
return;
}
lon_str[8] = '\0';
strcat(buf, lon_str);
strcat(buf, lon_EW);
} else {
printf("Invalid longitude\n");
return;
}
/* Just this symbolcode only */
strcat(buf, "/");
strncat(buf, band_txt[rptr_idx].gpid + 13, 32);
// printf("Built APRS from old GPS mode=[%s]\n", buf);
strcat(buf, "\r\n");
if (-1 == aprs->WriteSock(buf, strlen(buf))) {
if ((errno == EPIPE) || (errno == ECONNRESET) || (errno == ETIMEDOUT) || (errno == ECONNABORTED) ||
(errno == ESHUTDOWN) || (errno == EHOSTUNREACH) || (errno == ENETRESET) || (errno == ENETDOWN) ||
(errno == ENETUNREACH) || (errno == EHOSTDOWN) || (errno == ENOTCONN)) {
printf("build_aprs_from_gps_and_send: APRS_HOST closed connection, error=%d\n", errno);
close(aprs->GetSock());
aprs->SetSock( -1 );
} else
printf("build_aprs_from_gps_and_send: send error=%d\n", errno);
}
return;
}
bool CQnetGateway::verify_gps_csum(char *gps_text, char *csum_text)
{
short computed_csum = 0;
char computed_csum_text[16];
short int len = strlen(gps_text);
for (short int i=0; i<len; i++) {
char c = gps_text[i];
if (computed_csum == 0)
computed_csum = (char)c;
else
computed_csum = computed_csum ^ ((char)c);
}
sprintf(computed_csum_text, "%02X", computed_csum);
// printf("computed_csum_text=[%s]\n", computed_csum_text);
char *p = strchr(csum_text, ' ');
if (p)
*p = '\0';
if (strcmp(computed_csum_text, csum_text) == 0)
return true;
else
return false;
}
int main(int argc, char **argv)
{
printf("VERSION %s\n", IRCDDB_VERSION);
if (argc != 2) {
printf("usage: %s qn.cfg\n", argv[0]);
return 1;
}
CQnetGateway QnetGateway;
if (QnetGateway.Init(argv[1]))
return 1;
QnetGateway.Process();
printf("Leaving processing loop...\n");
}
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