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QnetGateway/QnetLink.cpp

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/*
* Copyright (C) 2010 by Scott Lawson KI4LKF
* Copyright (C) 2015,2018 by Thomas A. 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 and N7TAE*/
#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 <regex.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <future>
#include <exception>
#include <atomic>
/* Required for Binary search trees using C++ STL */
#include <string>
#include <set>
#include <map>
#include <utility>
#include <thread>
#include <chrono>
#include <libconfig.h++>
#include "versions.h"
using namespace libconfig;
/*** version number must be x.xx ***/
#define VERSION LINK_VERSION
#define CALL_SIZE 8
#define IP_SIZE 15
#define QUERY_SIZE 56
#define MAXHOSTNAMELEN 64
#define TIMEOUT 50
/* configuration data */
static std::string login_call;
static std::string owner;
static std::string to_g2_external_ip;
static std::string my_g2_link_ip;
static std::string gwys;
static std::string status_file;
static std::string announce_dir;
static bool only_admin_login;
static bool only_link_unlink;
static bool qso_details;
static bool bool_rptr_ack;
static bool announce;
static int rmt_xrf_port;
static int rmt_ref_port;
static int rmt_dcs_port;
static int my_g2_link_port;
static int to_g2_external_port;
static int delay_between;
static int delay_before;
static char link_at_startup[CALL_SIZE+1];
static unsigned int max_dongles;
static unsigned int saved_max_dongles;
static long rf_inactivity_timer[3];
static unsigned char REF_ACK[3] = { 3, 96, 0 };
// This is the data payload in the map: inbound_list
// This is for inbound dongles
struct inbound {
char call[CALL_SIZE + 1]; // the callsign of the remote
struct sockaddr_in sin; // IP and port of remote
short countdown; // if countdown expires, the connection is terminated
char mod; // A B C This user talked on this module
char client; // dvap, dvdongle
};
// the Key in this inbound_list map is the unique IP address of the remote
typedef std::map<std::string, inbound *> inbound_type;
static inbound_type inbound_list;
typedef std::set<std::string> admin_type;
static admin_type admin;
typedef std::set<std::string> link_unlink_user_type;
static link_unlink_user_type link_unlink_user;
#define LH_MAX_SIZE 39
typedef std::map<std::string, std::string> dt_lh_type;
static dt_lh_type dt_lh_list;
static struct {
char to_call[CALL_SIZE + 1];
struct sockaddr_in toDst4;
char from_mod;
char to_mod;
short countdown;
bool is_connected;
unsigned char in_streamid[2]; // incoming from remote systems
unsigned char out_streamid[2]; // outgoing to remote systems
} to_remote_g2[3];
// broadcast for data arriving from xrf to local rptr
static struct {
unsigned char xrf_streamid[2]; // streamid from xrf
unsigned char rptr_streamid[2][2]; // generated streamid to rptr(s)
} brd_from_xrf;
static unsigned char from_xrf_torptr_brd[56];
static short brd_from_xrf_idx = 0;
// broadcast for data arriving from local rptr to xrf
static struct {
unsigned char from_rptr_streamid[2];
unsigned char to_rptr_streamid[2][2];
} brd_from_rptr;
static unsigned char fromrptr_torptr_brd[56];
static short brd_from_rptr_idx = 0;
static struct {
unsigned char streamid[2];
time_t last_time; // last time RF user talked
} tracing[3] = {
{ {0,0}, 0 },
{ {0,0}, 0 },
{ {0,0}, 0 }
};
// input from remote
static int xrf_g2_sock = -1;
static int ref_g2_sock = -1;
static int dcs_g2_sock = -1;
static struct sockaddr_in fromDst4;
// After we receive it from remote g2,
// we must feed it to our local repeater.
static struct sockaddr_in toLocalg2;
// input from our own local repeater
static int rptr_sock = -1;
static struct sockaddr_in fromRptr;
static fd_set fdset;
static struct timeval tv;
static std::atomic<bool> keep_running(true);
// Used to validate incoming donglers
static regex_t preg;
const char* G2_html = "<table border=\"0\" width=\"95%\"><tr>"
"<td width=\"4%\"><img border=\"0\" src=g2ircddb.jpg></td>"
"<td width=\"96%\"><font size=\"2\">"
"<b>REPEATER</b> G2_IRCDDB Gateway v3.09+"
"</font></td>"
"</tr></table>";
// the map of remotes
// key is the callsign, data is the host
typedef std::map<std::string, std::string> gwy_list_type;
static gwy_list_type gwy_list;
static unsigned char queryCommand[QUERY_SIZE];
// START: TEXT crap
static char dtmf_mycall[3][CALL_SIZE + 1] = { {""}, {""}, {""} };
static bool new_group[3] = { true, true, true };
static int header_type = 0;
static bool GPS_seen[3] = { false, false, false };
unsigned char tmp_txt[3];
static char *p_tmp2 = NULL;
// END: TEXT crap
// this is used for the "dashboard and qso_details" to avoid processing multiple headers
static struct {
unsigned char sid[2];
} old_sid[3] = {
{ {0x00, 0x00} },
{ {0x00, 0x00} },
{ {0x00, 0x00} }
};
static bool load_gwys(const std::string &filename);
static void calcPFCS(unsigned char *packet, int len);
static bool read_config(char *);
static bool srv_open();
static void srv_close();
static void sigCatch(int signum);
static void g2link(char from_mod, char *call, char to_mod);
static void runit();
static void print_status_file();
static void send_heartbeat();
static bool resolve_rmt(char *name, int type, struct sockaddr_in *addr);
static void audio_notify(char *notify_msg);
static void rptr_ack(short i);
static void AudioNotifyThread(char *arg);
static void RptrAckThread(char *arg);
static bool resolve_rmt(char *name, int type, struct sockaddr_in *addr)
{
struct addrinfo hints;
struct addrinfo *res;
struct addrinfo *rp;
bool found = false;
memset(&hints, 0x00, sizeof(struct addrinfo));
hints.ai_family = AF_INET;
hints.ai_socktype = type;
int rc = getaddrinfo(name, NULL, &hints, &res);
if (rc != 0) {
printf("getaddrinfo return error code %d for [%s]\n", rc, name);
return false;
}
for (rp = res; rp != NULL; rp = rp->ai_next) {
if ((rp->ai_family == AF_INET) &&
(rp->ai_socktype == type)) {
memcpy(addr, rp->ai_addr, sizeof(struct sockaddr_in));
found = true;
break;
}
}
freeaddrinfo(res);
return found;
}
/* send keepalive to donglers */
static void send_heartbeat()
{
inbound_type::iterator pos;
inbound *inbound_ptr;
bool removed = false;
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
sendto(ref_g2_sock, REF_ACK, 3, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
if (inbound_ptr->countdown >= 0)
inbound_ptr->countdown --;
if (inbound_ptr->countdown < 0) {
removed = true;
printf("call=%s timeout, removing %s, users=%d\n", inbound_ptr->call, pos->first.c_str(), (int)inbound_list.size() - 1);
free(pos->second);
pos->second = NULL;
inbound_list.erase(pos);
}
}
if (removed)
print_status_file();
}
static void rptr_ack(short i)
{
static char mod_and_RADIO_ID[3][22];
memset(mod_and_RADIO_ID[i], ' ', 21);
mod_and_RADIO_ID[i][21] = '\0';
if (i == 0)
mod_and_RADIO_ID[i][0] = 'A';
else if (i == 1)
mod_and_RADIO_ID[i][0] = 'B';
else if (i == 2)
mod_and_RADIO_ID[i][0] = 'C';
if (to_remote_g2[i].is_connected) {
memcpy(mod_and_RADIO_ID[i] + 1, "LINKED TO ", 10);
memcpy(mod_and_RADIO_ID[i] + 11, to_remote_g2[i].to_call, CALL_SIZE);
mod_and_RADIO_ID[i][11 + CALL_SIZE] = to_remote_g2[i].to_mod;
} else if (to_remote_g2[i].to_call[0] != '\0') {
memcpy(mod_and_RADIO_ID[i] + 1, "TRYING ", 10);
memcpy(mod_and_RADIO_ID[i] + 11, to_remote_g2[i].to_call, CALL_SIZE);
mod_and_RADIO_ID[i][11 + CALL_SIZE] = to_remote_g2[i].to_mod;
} else {
memcpy(mod_and_RADIO_ID[i] + 1, "NOT LINKED", 10);
}
try {
std::async(std::launch::async, RptrAckThread, mod_and_RADIO_ID[i]);
} catch (const std::exception &e) {
printf("Failed to start RptrAckThread(). Exception: %s\n", e.what());
}
return;
}
static void RptrAckThread(char *arg)
{
char from_mod = arg[0];
char RADIO_ID[21];
memcpy(RADIO_ID, arg + 1, 21);
unsigned char buf[56];
unsigned int aseed;
time_t tnow = 0;
//unsigned char silence[12] = { 0x9E, 0x8D, 0x32, 0x88, 0x26, 0x1A, 0x3F, 0x61, 0xE8, 0x55, 0x2D, 0x16 };
unsigned char silence[12] = { 0x9E, 0x8D, 0x32, 0x88, 0x26, 0x1A, 0x3F, 0x61, 0xE8, 0x16, 0x29, 0xf5 };
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;
}
time(&tnow);
aseed = tnow + pthread_self();
u_int16_t streamid_raw = (::rand_r(&aseed) % 65535U) + 1U;
sleep(delay_before);
printf("sending ACK+text, mod:[%c], RADIO_ID=[%s]\n", from_mod, RADIO_ID);
memcpy(buf,"DSVT", 4);
buf[4] = 0x10;
buf[5] = 0x00;
buf[6] = 0x00;
buf[7] = 0x00;
buf[8] = 0x20;
buf[9] = 0x00;
buf[10] = 0x01;
buf[11] = 0x00;
buf[12] = streamid_raw / 256U;
buf[13] = streamid_raw % 256U;
buf[14] = 0x80;
buf[15] = 0x01; /* we do not want to set this to 0x01 */
buf[16] = 0x00;
buf[17] = 0x00;
memcpy(buf + 18, owner.c_str(), CALL_SIZE);
buf[25] = from_mod;
memcpy(buf + 26, owner.c_str(), CALL_SIZE);
buf[33] = 'G';
memcpy(buf + 34, "CQCQCQ ", CALL_SIZE);
memcpy(buf + 42, owner.c_str(), CALL_SIZE);
buf[49] = from_mod;
memcpy(buf + 50, "RPTR", 4);
calcPFCS(buf,56);
sendto(rptr_sock, buf, 56, 0, (struct sockaddr *)&toLocalg2, sizeof(toLocalg2));
std::this_thread::sleep_for(std::chrono::milliseconds(delay_between));
buf[4] = 0x20;
memcpy(buf + 15, silence, 9);
/* start sending silence + announcement text */
for (int i=0; i<10; i++) {
buf[14] = (unsigned char)i;
switch (i) {
case 0:
buf[24] = 0x55;
buf[25] = 0x2d;
buf[26] = 0x16;
break;
case 1:
buf[24] = '@' ^ 0x70;
buf[25] = RADIO_ID[0] ^ 0x4f;
buf[26] = RADIO_ID[1] ^ 0x93;
break;
case 2:
buf[24] = RADIO_ID[2] ^ 0x70;
buf[25] = RADIO_ID[3] ^ 0x4f;
buf[26] = RADIO_ID[4] ^ 0x93;
break;
case 3:
buf[24] = 'A' ^ 0x70;
buf[25] = RADIO_ID[5] ^ 0x4f;
buf[26] = RADIO_ID[6] ^ 0x93;
break;
case 4:
buf[24] = RADIO_ID[7] ^ 0x70;
buf[25] = RADIO_ID[8] ^ 0x4f;
buf[26] = RADIO_ID[9] ^ 0x93;
break;
case 5:
buf[24] = 'B' ^ 0x70;
buf[25] = RADIO_ID[10] ^ 0x4f;
buf[26] = RADIO_ID[11] ^ 0x93;
break;
case 6:
buf[24] = RADIO_ID[12] ^ 0x70;
buf[25] = RADIO_ID[13] ^ 0x4f;
buf[26] = RADIO_ID[14] ^ 0x93;
break;
case 7:
buf[24] = 'C' ^ 0x70;
buf[25] = RADIO_ID[15] ^ 0x4f;
buf[26] = RADIO_ID[16] ^ 0x93;
break;
case 8:
buf[24] = RADIO_ID[17] ^ 0x70;
buf[25] = RADIO_ID[18] ^ 0x4f;
buf[26] = RADIO_ID[19] ^ 0x93;
break;
case 9:
buf[14] |= 0x40;
//buf[24] = 0x70;
//buf[25] = 0x4f;
//buf[26] = 0x93;
buf[24] = 0x16;
buf[25] = 0x29;
buf[26] = 0xf5;
break;
}
sendto(rptr_sock, buf, 27, 0, (struct sockaddr *)&toLocalg2, sizeof(toLocalg2));
if (i < 9)
std::this_thread::sleep_for(std::chrono::milliseconds(delay_between));
}
}
static void print_status_file()
{
FILE *statusfp = fopen(status_file.c_str(), "w");
if (!statusfp)
printf("Failed to create status file %s\n", status_file.c_str());
else {
setvbuf(statusfp, (char *)NULL, _IOLBF, 0);
struct tm tm1;
time_t tnow;
const char *fstr = "%c,%s,%c,%s,%02d%02d%02d,%02d:%02d:%02d\n";
time(&tnow);
localtime_r(&tnow, &tm1);
/* print connected donglers */
for (auto pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound *inbound_ptr = (inbound *)pos->second;
fprintf(statusfp, fstr, 'p', inbound_ptr->call, 'p', pos->first.c_str(), tm1.tm_mon+1,tm1.tm_mday,tm1.tm_year % 100, tm1.tm_hour,tm1.tm_min,tm1.tm_sec);
}
/* print linked repeaters-reflectors */
for (int i=0; i<3;i++) {
if (to_remote_g2[i].is_connected) {
fprintf(statusfp, fstr, to_remote_g2[i].from_mod, to_remote_g2[i].to_call, to_remote_g2[i].to_mod, inet_ntoa(to_remote_g2[i].toDst4.sin_addr),
tm1.tm_mon+1, tm1.tm_mday ,tm1.tm_year % 100, tm1.tm_hour, tm1.tm_min, tm1.tm_sec);
}
}
fclose(statusfp);
}
}
/* Open text file of repeaters, reflectors */
static bool load_gwys(const std::string &filename)
{
char inbuf[1024];
const char *delim = " ";
char call[CALL_SIZE + 1];
char host[MAXHOSTNAMELEN + 1];
char port[5 + 1];
/* host + space + port + NULL */
char payload[MAXHOSTNAMELEN + 1 + 5 + 1];
unsigned short j;
gwy_list_type::iterator gwy_pos;
std::pair<gwy_list_type::iterator,bool> gwy_insert_pair;
printf("Trying to open file %s\n", filename.c_str());
FILE *fp = fopen(filename.c_str(), "r");
if (fp == NULL) {
printf("Failed to open file %s\n", filename.c_str());
return false;
}
printf("Opened file %s OK\n", filename.c_str());
while (fgets(inbuf, 1020, fp) != NULL) {
char *p = strchr(inbuf, '\r');
if (p)
*p = '\0';
p = strchr(inbuf, '\n');
if (p)
*p = '\0';
p = strchr(inbuf, '#');
if (p) {
printf("Comment line:[%s]\n", inbuf);
continue;
}
/* get the call */
char *tok = strtok(inbuf, delim);
if (!tok)
continue;
if ((strlen(tok) > CALL_SIZE) || (strlen(tok) < 3)) {
printf("Invalid call [%s]\n", tok);
continue;
}
memset(call, ' ', CALL_SIZE);
call[CALL_SIZE] = '\0';
memcpy(call, tok, strlen(tok));
for (j = 0; j < strlen(call); j++)
call[j] = toupper(call[j]);
if (strcmp(call, owner.c_str()) == 0) {
printf("Call [%s] will not be loaded\n", call);
continue;
}
/* get the host */
tok = strtok(NULL, delim);
if (!tok) {
printf("Call [%s] has no host\n", call);
continue;
}
strncpy(host,tok,MAXHOSTNAMELEN);
host[MAXHOSTNAMELEN] = '\0';
if (strcmp(host, "0.0.0.0") == 0) {
printf("call %s has invalid host %s\n", call, host);
continue;
}
/* get the port */
tok = strtok(NULL, delim);
if (!tok) {
printf("Call [%s] has no port\n", call);
continue;
}
if (strlen(tok) > 5) {
printf("call %s has invalid port [%s]\n", call, tok);
continue;
}
strcpy(port, tok);
/* at this point, we have: call host port */
/* copy the payload(host port) */
sprintf(payload, "%s %s", host, port);
gwy_pos = gwy_list.find(call);
if (gwy_pos == gwy_list.end()) {
gwy_insert_pair = gwy_list.insert(std::pair<std::string,std::string>(call,payload));
if (gwy_insert_pair.second)
printf("Added Call=[%s], payload=[%s]\n",call, payload);
else
printf("Failed to add: Call=[%s], payload=[%s]\n",call, payload);
} else
printf("Call [%s] is duplicate\n", call);
}
fclose(fp);
printf("Added %d gateways\n", (int)gwy_list.size());
return true;
}
/* compute checksum */
static void calcPFCS(unsigned char *packet, int len)
{
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;
unsigned short tmp;
short int low, high;
if (len == 56) {
low = 15;
high = 54;
} else if (len == 58) {
low = 17;
high = 56;
} else
return;
for (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;
}
bool get_value(const Config &cfg, const char *path, int &value, int min, int max, int default_value)
{
if (cfg.lookupValue(path, value)) {
if (value < min || value > max)
value = default_value;
} else
value = default_value;
printf("%s = [%u]\n", path, value);
return true;
}
bool get_value(const Config &cfg, const char *path, double &value, double min, double max, double default_value)
{
if (cfg.lookupValue(path, value)) {
if (value < min || value > max)
value = default_value;
} else
value = default_value;
printf("%s = [%lg]\n", path, value);
return true;
}
bool get_value(const Config &cfg, const char *path, bool &value, bool default_value)
{
if (! cfg.lookupValue(path, value))
value = default_value;
printf("%s = [%s]\n", path, value ? "true" : "false");
return true;
}
bool get_value(const Config &cfg, const char *path, std::string &value, int min, int max, const char *default_value)
{
if (cfg.lookupValue(path, value)) {
int l = value.length();
if (l<min || l>max) {
printf("%s='%s' is has to be between %d and %d characters\n", path, value.c_str(), min, max);
return false;
}
} else
value = default_value;
printf("%s = [%s]\n", path, value.c_str());
return true;
}
/* process configuration file */
static bool read_config(char *cfgFile)
{
admin_type::iterator pos;
link_unlink_user_type::iterator link_unlink_user_pos;
unsigned short i;
Config cfg;
printf("Reading file %s\n", cfgFile);
// Read the file. If there is an error, report it and exit.
try {
cfg.readFile(cfgFile);
}
catch(const FileIOException &fioex) {
printf("Can't read %s\n", cfgFile);
return false;
}
catch(const ParseException &pex) {
printf("Parse error at %s:%d - %s\n", pex.getFile(), pex.getLine(), pex.getError());
return false;
}
std::string value;
std::string key = "link.ref_login";
if (cfg.lookupValue(key, login_call) || cfg.lookupValue("ircddb.login", login_call)) {
int l = login_call.length();
if (l<3 || l>CALL_SIZE-2) {
printf("Call '%s' is invalid length!\n", login_call.c_str());
return false;
} else {
for (i=0; i<l; i++) {
if (islower(login_call[i]))
login_call[i] = toupper(login_call[i]);
}
login_call.resize(CALL_SIZE, ' ');
printf("%s = [\"%s\"]\n", key.c_str(), login_call.c_str());
}
} else {
printf("%s is not defined.\n", key.c_str());
return false;
}
key = "link.admin";
only_admin_login = false;
if (cfg.exists(key)) {
Setting &userlist = cfg.lookup(key);
if (userlist.isArray()) {
for (i=0; i<userlist.getLength(); i++) {
value = (const char *)userlist[i];
int l = value.length();
if (l>2 && l<=CALL_SIZE-2) {
for (unsigned int j=0; j<value.length(); j++) {
if (islower(value[j]))
value[j] = toupper(value[j]);
}
value.resize(CALL_SIZE, ' ');
if (admin.end() == admin.find(value)) {
if (admin.insert(value).second)
only_admin_login = true;
} else
printf("could not add '%s' as user.\n", value.c_str());
} else
printf("'%s' is the wrong length!\n", value.c_str());
}
} else {
printf("%s is not an array!\n", key.c_str());
return false;
}
printf("%s = [ ", key.c_str());
for (pos=admin.begin(); pos!=admin.end(); pos++) {
if (pos != admin.begin())
fprintf(stdout, ", ");
fprintf(stdout, "\"%s\"", (*pos).c_str());
}
fprintf(stdout, " ]\n");
}
key = "link.link_unlink";
only_link_unlink = false;
if (cfg.exists(key)) {
Setting &unlinklist = cfg.lookup(key);
if (unlinklist.isArray()) {
for (i=0; i<unlinklist.getLength(); i++) {
value = (const char *)unlinklist[i];
int l = value.length();
if (l>2 && l<CALL_SIZE-2) {
for (unsigned int j=0; j<value.length(); j++) {
if (islower(value[j]))
value[j] = toupper(value[j]);
}
value.resize(CALL_SIZE, ' ');
if (link_unlink_user.end() == link_unlink_user.find(value)) {
if (link_unlink_user.insert(value).second)
only_link_unlink = true;
} else
printf("could not add '%s' to link-unlink.\n", value.c_str());
} else
printf("'%s' is the wrong length!\n", value.c_str());
}
} else {
printf("%s is not an array!\n", key.c_str());
return false;
}
printf("%s = [ ", key.c_str());
for (link_unlink_user_pos=link_unlink_user.begin(); link_unlink_user_pos!=link_unlink_user.end(); link_unlink_user_pos++) {
if (link_unlink_user_pos != link_unlink_user.begin())
fprintf(stdout, ", ");
fprintf(stdout, "\"%s\"", (*link_unlink_user_pos).c_str());
}
fprintf(stdout, " ]\n");
}
key = "ircddb.login";
if (cfg.lookupValue(key, owner)) {
int l = owner.length();
if (l>2 && l<=CALL_SIZE-2) {
for (i=0; i<l; i++) {
if (islower(owner[i]))
owner[i] = toupper(owner[i]);
}
owner.resize(CALL_SIZE, ' ');
printf("%s = [%s]\n", key.c_str(), owner.c_str());
} else {
printf("%s '%s' is wrong size.\n", key.c_str(), owner.c_str());
return false;
}
}
get_value(cfg, "link.ref_port", rmt_ref_port, 10000, 65535, 20001);
get_value(cfg, "link.xrf_port", rmt_xrf_port, 10000, 65535, 30001);
get_value(cfg, "link.dcs_port", rmt_dcs_port, 10000, 65535, 30051);
if (! get_value(cfg, "link.incoming_ip", my_g2_link_ip, 7, IP_SIZE, "0.0.0.0"))
return false;
get_value(cfg, "link.port", my_g2_link_port, 10000, 65535, 18997);
if (! get_value(cfg, "gateway.internal.ip", to_g2_external_ip, 7, IP_SIZE, "0.0.0.0"))
return false;
get_value(cfg, "gateway.external.port", to_g2_external_port, 1024, 65535, 40000);
get_value(cfg, "gateway.log.qso", qso_details, true);
if (! get_value(cfg, "file.gwys", gwys, 2, FILENAME_MAX, "/usr/local/etc/gwys.txt"))
return false;
if (! get_value(cfg, "file.status", status_file, 2, FILENAME_MAX, "/usr/local/etc/RPTR_STATUS.txt"))
return false;
get_value(cfg, "timing.play.delay", delay_between, 9, 25, 19);
get_value(cfg, "link.acknowledge", bool_rptr_ack, true);
get_value(cfg, "link.announce", announce, true);
if (! get_value(cfg, "file.announce_dir", announce_dir, 2, FILENAME_MAX, "/usr/local/etc"))
return false;
get_value(cfg, "timing.play.wait", delay_before, 1, 10, 2);
memset(link_at_startup, 0, CALL_SIZE+1);
if (get_value(cfg, "link.link_at_start", value, 5, CALL_SIZE, "NONE")) {
if (strcasecmp(value.c_str(), "none"))
strcpy(link_at_startup, value.c_str());
} else
return false;
int maxdongle;
get_value(cfg, "link.max_dongles", maxdongle, 0, 10, 5);
saved_max_dongles = max_dongles = (unsigned int)maxdongle;
for (i=0; i<3; i++) {
int timer;
key = "timing.inactivity.";
key += ('a' + i);
get_value(cfg, key.c_str(), timer, 0, 300, 0);
timer *= 60;
rf_inactivity_timer[i] = timer;
}
return true;
}
/* create our server */
static bool srv_open()
{
struct sockaddr_in sin;
short i;
/* create our XRF gateway socket */
xrf_g2_sock = socket(PF_INET,SOCK_DGRAM,0);
if (xrf_g2_sock == -1) {
printf("Failed to create gateway socket for XRF,errno=%d\n",errno);
return false;
}
fcntl(xrf_g2_sock,F_SETFL,O_NONBLOCK);
memset(&sin,0,sizeof(struct sockaddr_in));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = inet_addr(my_g2_link_ip.c_str());
sin.sin_port = htons(rmt_xrf_port);
if (bind(xrf_g2_sock,(struct sockaddr *)&sin,sizeof(struct sockaddr_in)) != 0) {
printf("Failed to bind gateway socket on port %d for XRF, errno=%d\n",
rmt_xrf_port ,errno);
close(xrf_g2_sock);
xrf_g2_sock = -1;
return false;
}
/* create the dcs socket */
dcs_g2_sock = socket(PF_INET,SOCK_DGRAM,0);
if (dcs_g2_sock == -1) {
printf("Failed to create gateway socket for DCS,errno=%d\n",errno);
close(xrf_g2_sock);
xrf_g2_sock = -1;
return false;
}
fcntl(dcs_g2_sock,F_SETFL,O_NONBLOCK);
/* socket for REF */
ref_g2_sock = socket(PF_INET,SOCK_DGRAM,0);
if (ref_g2_sock == -1) {
printf("Failed to create gateway socket for REF, errno=%d\n",errno);
close(dcs_g2_sock);
dcs_g2_sock = -1;
close(xrf_g2_sock);
xrf_g2_sock = -1;
return false;
}
fcntl(ref_g2_sock,F_SETFL,O_NONBLOCK);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = inet_addr(my_g2_link_ip.c_str());
sin.sin_port = htons(rmt_ref_port);
if (bind(ref_g2_sock,(struct sockaddr *)&sin,sizeof(struct sockaddr_in)) != 0) {
printf("Failed to bind gateway socket on port %d for REF, errno=%d\n",
rmt_ref_port ,errno);
close(dcs_g2_sock);
dcs_g2_sock = -1;
close(xrf_g2_sock);
xrf_g2_sock = -1;
close(ref_g2_sock);
ref_g2_sock = -1;
return false;
}
/* create our repeater socket */
rptr_sock = socket(PF_INET,SOCK_DGRAM,0);
if (rptr_sock == -1) {
printf("Failed to create repeater socket,errno=%d\n",errno);
close(dcs_g2_sock);
dcs_g2_sock = -1;
close(xrf_g2_sock);
xrf_g2_sock = -1;
close(ref_g2_sock);
ref_g2_sock = -1;
return false;
}
fcntl(rptr_sock,F_SETFL,O_NONBLOCK);
memset(&sin,0,sizeof(struct sockaddr_in));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = inet_addr(my_g2_link_ip.c_str());
sin.sin_port = htons(my_g2_link_port);
if (bind(rptr_sock,(struct sockaddr *)&sin,sizeof(struct sockaddr_in)) != 0) {
printf("Failed to bind repeater socket on port %d, errno=%d\n",
my_g2_link_port,errno);
close(dcs_g2_sock);
dcs_g2_sock = -1;
close(rptr_sock);
rptr_sock = -1;
close(xrf_g2_sock);
xrf_g2_sock = -1;
close(ref_g2_sock);
ref_g2_sock = -1;
return false;
}
/* the local G2 external runs on this IP and port */
memset(&toLocalg2,0,sizeof(struct sockaddr_in));
toLocalg2.sin_family = AF_INET;
toLocalg2.sin_addr.s_addr = inet_addr(to_g2_external_ip.c_str());
toLocalg2.sin_port = htons(to_g2_external_port);
/* initialize all remote links */
for (i = 0; i < 3; i++) {
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
to_remote_g2[i].out_streamid[0] = 0x00;
to_remote_g2[i].out_streamid[1] = 0x00;
}
return true;
}
/* destroy our server */
static void srv_close()
{
if (xrf_g2_sock != -1) {
close(xrf_g2_sock);
printf("Closed rmt_xrf_port\n");
}
if (dcs_g2_sock != -1) {
close(dcs_g2_sock);
printf("Closed rmt_dcs_port\n");
}
if (rptr_sock != -1) {
close(rptr_sock);
printf("Closed my_g2_link_port\n");
}
if (ref_g2_sock != -1) {
close(ref_g2_sock);
printf("Closed rmt_ref_port\n");
}
return;
}
/* find the repeater IP by callsign and link to it */
static void g2link(char from_mod, char *call, char to_mod)
{
short i,j, counter;
char linked_remote_system[CALL_SIZE + 1];
char *space_p = 0;
char notify_msg[64];
char host[MAXHOSTNAMELEN + 1];
char port_s[5 + 1];
int port_i;
/* host + space + port + NULL */
char payload[MAXHOSTNAMELEN + 1 + 5 + 1];
char *p = NULL;
gwy_list_type::iterator gwy_pos;
char link_request[519];
bool ok = false;
memset(link_request, 0, sizeof(link_request));
host[0] = '\0';
port_s[0] = '\0';
payload[0] = '\0';
if (from_mod == 'A')
i = 0;
else if (from_mod == 'B')
i = 1;
else if (from_mod == 'C')
i = 2;
else {
printf("from_mod %c invalid\n", from_mod);
return;
}
memset(&to_remote_g2[i], 0, sizeof(to_remote_g2[i]));
strcpy(to_remote_g2[i].to_call, call);
to_remote_g2[i].to_mod = to_mod;
if ((memcmp(call, "REF", 3) == 0) || (memcmp(call, "DCS", 3) == 0)) {
for (counter = 0; counter < 3; counter++) {
if (counter != i) {
if ('\0'!=to_remote_g2[counter].to_call[0] && !strcmp(to_remote_g2[counter].to_call,to_remote_g2[i].to_call) && to_remote_g2[counter].to_mod==to_remote_g2[i].to_mod)
break;
}
}
to_remote_g2[i].to_call[0] = '\0';
to_remote_g2[i].to_mod = ' ';
if (counter < 3) {
printf("Another mod(%c) is already linked to %s %c\n", to_remote_g2[counter].from_mod, to_remote_g2[counter].to_call, to_remote_g2[counter].to_mod);
return;
}
}
gwy_pos = gwy_list.find(call);
if (gwy_pos == gwy_list.end()) {
printf("%s not found in gwy list\n", call);
return;
}
strcpy(payload, gwy_pos->second.c_str());
/* extract host and port */
p = strchr(payload, ' ');
if (!p) {
printf("Invalid payload [%s] for call [%s]\n", payload, call);
return;
}
*p = '\0';
strcpy(host, payload);
strcpy(port_s, p + 1);
port_i = atoi(port_s);
if (host[0] != '\0') {
ok = resolve_rmt(host, SOCK_DGRAM, &(to_remote_g2[i].toDst4));
if (!ok) {
printf("Call %s is host %s but could not resolve to IP\n", call, host);
memset(&to_remote_g2[i], 0, sizeof(to_remote_g2[i]));
return;
}
strcpy(to_remote_g2[i].to_call, call);
to_remote_g2[i].toDst4.sin_family = AF_INET;
to_remote_g2[i].toDst4.sin_port = htons(port_i);
to_remote_g2[i].from_mod = from_mod;
to_remote_g2[i].to_mod = to_mod;
to_remote_g2[i].countdown = TIMEOUT;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
/* is it XRF? */
if (port_i == rmt_xrf_port) {
strcpy(link_request, owner.c_str());
link_request[8] = from_mod;
link_request[9] = to_mod;
link_request[10] = '\0';
printf("sending link request from mod %c to link with: [%s] mod %c [%s]\n", to_remote_g2[i].from_mod, to_remote_g2[i].to_call, to_remote_g2[i].to_mod, payload);
for (j=0; j<5; j++)
sendto(xrf_g2_sock, link_request, CALL_SIZE + 3, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
} else if (port_i == rmt_dcs_port) {
strcpy(link_request, owner.c_str());
link_request[8] = from_mod;
link_request[9] = to_mod;
link_request[10] = '\0';
memcpy(link_request + 11, to_remote_g2[i].to_call, 8);
strcpy(link_request + 19, G2_html);
printf("sending link request from mod %c to link with: [%s] mod %c [%s]\n", to_remote_g2[i].from_mod, to_remote_g2[i].to_call, to_remote_g2[i].to_mod, payload);
sendto(dcs_g2_sock, link_request, 519, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
} else if (port_i == rmt_ref_port) {
for (counter = 0; counter < 3; counter++) {
if (counter != i) {
if ( (to_remote_g2[counter].to_call[0] != '\0') &&
(strcmp(to_remote_g2[counter].to_call,to_remote_g2[i].to_call) == 0) )
break;
}
}
if (counter > 2) {
printf("sending link command from mod %c to: [%s] mod %c [%s]\n", to_remote_g2[i].from_mod, to_remote_g2[i].to_call, to_remote_g2[i].to_mod, payload);
queryCommand[0] = 5;
queryCommand[1] = 0;
queryCommand[2] = 24;
queryCommand[3] = 0;
queryCommand[4] = 1;
sendto(ref_g2_sock, queryCommand, 5, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
} else {
if (to_remote_g2[counter].is_connected) {
to_remote_g2[i].is_connected = true;
printf("Local module %c is also connected to %s %c\n", from_mod, call, to_mod);
print_status_file();
tracing[i].last_time = time(NULL);
// announce it here
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c", to_remote_g2[i].from_mod, linked_remote_system, to_remote_g2[i].to_mod);
audio_notify(notify_msg);
} else
printf("status from %s %c pending\n", to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
}
}
}
return;
}
/* signal catching function */
static void sigCatch(int signum)
{
/* do NOT do any serious work here */
if ((signum == SIGTERM) || (signum == SIGINT))
keep_running = false;
return;
}
static void runit()
{
socklen_t fromlen;
int recvlen;
int recvlen2;
short i,j,k;
char temp_repeater[CALL_SIZE + 1];
time_t tnow = 0, hb = 0;
int rc = 0;
char *p = NULL;
char notify_msg[64];
char *space_p = 0;
char linked_remote_system[CALL_SIZE + 1];
char unlink_request[CALL_SIZE + 3];
char system_cmd[FILENAME_MAX + 1];
int max_nfds = 0;
char tmp1[CALL_SIZE + 1];
char tmp2[36]; // 8 for rpt1 + 24 for time_t in std::string format
unsigned char readBuffer[100]; // 58 or 29 or 32, max is 58
unsigned char readBuffer2[1024];
unsigned char dcs_buf[1000];
dt_lh_type::iterator dt_lh_pos;
dt_lh_type::reverse_iterator r_dt_lh_pos;
gwy_list_type::iterator gwy_pos;
char call[CALL_SIZE + 1];
char ip[IP_SIZE + 1];
inbound *inbound_ptr;
inbound_type::iterator pos;
std::pair<inbound_type::iterator,bool> insert_pair;
bool found = false;
std::set<std::string>::iterator it;
char cmd_2_dcs[23];
unsigned char dcs_seq[3] = { 0x00, 0x00, 0x00 };
struct {
char mycall[9];
char sfx[5];
unsigned int dcs_rptr_seq;
} rptr_2_dcs[3] = {
{" ", " ", 0},
{" ", " ", 0},
{" ", " ", 0}
};
struct {
char mycall[9];
char sfx[5];
unsigned int dcs_rptr_seq;
} ref_2_dcs[3] = {
{" ", " ", 0},
{" ", " ", 0},
{" ", " ", 0}
};
struct {
char mycall[9];
char sfx[5];
unsigned int dcs_rptr_seq;
} xrf_2_dcs[3] = {
{" ", " ", 0},
{" ", " ", 0},
{" ", " ", 0}
};
u_int16_t streamid_raw;
char source_stn[9];
memset(notify_msg, '\0', sizeof(notify_msg));
time(&hb);
if (xrf_g2_sock > max_nfds)
max_nfds = xrf_g2_sock;
if (ref_g2_sock > max_nfds)
max_nfds = ref_g2_sock;
if (rptr_sock > max_nfds)
max_nfds = rptr_sock;
if (dcs_g2_sock > max_nfds)
max_nfds = dcs_g2_sock;
printf("xrf=%d, dcs=%d, ref=%d, rptr=%d, MAX+1=%d\n",
xrf_g2_sock, dcs_g2_sock, ref_g2_sock, rptr_sock, max_nfds + 1);
if (strlen(link_at_startup) >= 8) {
if ((link_at_startup[0] == 'A') || (link_at_startup[0] == 'B') || (link_at_startup[0] == 'C')) {
memset(temp_repeater, ' ', CALL_SIZE);
memcpy(temp_repeater, link_at_startup + 1, 6);
temp_repeater[CALL_SIZE] = '\0';
printf("sleep for 15 before link at startup\n");
sleep(15);
g2link(link_at_startup[0], temp_repeater, link_at_startup[7]);
}
memset(link_at_startup, '\0', sizeof(link_at_startup));
}
while (keep_running) {
time(&tnow);
if ((tnow - hb) > 0) {
/* send heartbeat to connected donglers */
send_heartbeat();
/* send heartbeat to linked XRF repeaters/reflectors */
if (to_remote_g2[0].toDst4.sin_port == htons(rmt_xrf_port))
sendto(xrf_g2_sock, owner.c_str(), CALL_SIZE+1, 0, (struct sockaddr *)&(to_remote_g2[0].toDst4), sizeof(to_remote_g2[0].toDst4));
if ((to_remote_g2[1].toDst4.sin_port == htons(rmt_xrf_port)) && (strcmp(to_remote_g2[1].to_call, to_remote_g2[0].to_call) != 0))
sendto(xrf_g2_sock, owner.c_str(), CALL_SIZE+1, 0, (struct sockaddr *)&(to_remote_g2[1].toDst4), sizeof(to_remote_g2[1].toDst4));
if ((to_remote_g2[2].toDst4.sin_port == htons(rmt_xrf_port)) &&
(strcmp(to_remote_g2[2].to_call, to_remote_g2[0].to_call) != 0) &&
(strcmp(to_remote_g2[2].to_call, to_remote_g2[1].to_call) != 0))
sendto(xrf_g2_sock, owner.c_str(), CALL_SIZE+1, 0, (struct sockaddr *)&(to_remote_g2[2].toDst4), sizeof(to_remote_g2[2].toDst4));
/* send heartbeat to linked DCS reflectors */
if (to_remote_g2[0].toDst4.sin_port == htons(rmt_dcs_port)) {
strcpy(cmd_2_dcs, owner.c_str());
cmd_2_dcs[7] = to_remote_g2[0].from_mod;
memcpy(cmd_2_dcs + 9, to_remote_g2[0].to_call, 8);
cmd_2_dcs[16] = to_remote_g2[0].to_mod;
sendto(dcs_g2_sock, cmd_2_dcs, 17, 0, (struct sockaddr *)&(to_remote_g2[0].toDst4), sizeof(to_remote_g2[0].toDst4));
}
if (to_remote_g2[1].toDst4.sin_port == htons(rmt_dcs_port)) {
strcpy(cmd_2_dcs, owner.c_str());
cmd_2_dcs[7] = to_remote_g2[1].from_mod;
memcpy(cmd_2_dcs + 9, to_remote_g2[1].to_call, 8);
cmd_2_dcs[16] = to_remote_g2[1].to_mod;
sendto(dcs_g2_sock, cmd_2_dcs, 17, 0, (struct sockaddr *)&(to_remote_g2[1].toDst4), sizeof(to_remote_g2[1].toDst4));
}
if (to_remote_g2[2].toDst4.sin_port == htons(rmt_dcs_port)) {
strcpy(cmd_2_dcs, owner.c_str());
cmd_2_dcs[7] = to_remote_g2[2].from_mod;
memcpy(cmd_2_dcs + 9, to_remote_g2[2].to_call, 8);
cmd_2_dcs[16] = to_remote_g2[2].to_mod;
sendto(dcs_g2_sock, cmd_2_dcs, 17, 0, (struct sockaddr *)&(to_remote_g2[2].toDst4), sizeof(to_remote_g2[2].toDst4));
}
/* send heartbeat to linked REF reflectors */
if (to_remote_g2[0].is_connected && (to_remote_g2[0].toDst4.sin_port == htons(rmt_ref_port)))
sendto(ref_g2_sock, REF_ACK, 3, 0, (struct sockaddr *)&(to_remote_g2[0].toDst4), sizeof(to_remote_g2[0].toDst4));
if (to_remote_g2[1].is_connected &&
(to_remote_g2[1].toDst4.sin_port == htons(rmt_ref_port)) &&
(strcmp(to_remote_g2[1].to_call, to_remote_g2[0].to_call) != 0))
sendto(ref_g2_sock, REF_ACK, 3, 0, (struct sockaddr *)&(to_remote_g2[1].toDst4), sizeof(to_remote_g2[1].toDst4));
if (to_remote_g2[2].is_connected &&
(to_remote_g2[2].toDst4.sin_port == htons(rmt_ref_port)) &&
(strcmp(to_remote_g2[2].to_call, to_remote_g2[0].to_call) != 0) &&
(strcmp(to_remote_g2[2].to_call, to_remote_g2[1].to_call) != 0))
sendto(ref_g2_sock, REF_ACK, 3, 0, (struct sockaddr *)&(to_remote_g2[2].toDst4), sizeof(to_remote_g2[2].toDst4));
for (i = 0; i < 3; i++) {
/* check for timeouts from remote */
if (to_remote_g2[i].to_call[0] != '\0') {
if (to_remote_g2[i].countdown >= 0)
to_remote_g2[i].countdown--;
if (to_remote_g2[i].countdown < 0) {
/* maybe remote system has changed IP */
printf("Unlinked from [%s] mod %c, TIMEOUT...\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_unlinked.dat_UNLINKED_TIMEOUT", to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
}
}
/*** check for RF inactivity ***/
if (to_remote_g2[i].is_connected) {
if (((tnow - tracing[i].last_time) > rf_inactivity_timer[i]) && (rf_inactivity_timer[i] > 0)) {
tracing[i].last_time = 0;
printf("Unlinked from [%s] mod %c, local RF inactivity...\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port)) {
queryCommand[0] = 5;
queryCommand[1] = 0;
queryCommand[2] = 24;
queryCommand[3] = 0;
queryCommand[4] = 0;
sendto(ref_g2_sock, queryCommand, 5, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
/* zero out any other entries here that match that system */
for (j = 0; j < 3; j++) {
if (j != i) {
if ((to_remote_g2[j].toDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[j].toDst4.sin_port == htons(rmt_ref_port))) {
to_remote_g2[j].to_call[0] = '\0';
memset(&(to_remote_g2[j].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[j].from_mod = ' ';
to_remote_g2[j].to_mod = ' ';
to_remote_g2[j].countdown = 0;
to_remote_g2[j].is_connected = false;
to_remote_g2[j].in_streamid[0] = to_remote_g2[j].in_streamid[1] = 0x00;
}
}
}
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
strcpy(unlink_request, owner.c_str());
unlink_request[8] = to_remote_g2[i].from_mod;
unlink_request[9] = ' ';
unlink_request[10] = '\0';
for (j = 0; j < 5; j++)
sendto(xrf_g2_sock, unlink_request, CALL_SIZE+3, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
strcpy(cmd_2_dcs, owner.c_str());
cmd_2_dcs[8] = to_remote_g2[i].from_mod;
cmd_2_dcs[9] = ' ';
cmd_2_dcs[10] = '\0';
memcpy(cmd_2_dcs + 11, to_remote_g2[i].to_call, 8);
for (j=0; j<2; j++)
sendto(dcs_g2_sock, cmd_2_dcs, 19 ,0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
sprintf(notify_msg, "%c_unlinked.dat_UNLINKED_TIMEOUT", to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
}
}
}
time(&hb);
}
FD_ZERO(&fdset);
FD_SET(xrf_g2_sock,&fdset);
FD_SET(dcs_g2_sock,&fdset);
FD_SET(ref_g2_sock,&fdset);
FD_SET(rptr_sock,&fdset);
tv.tv_sec = 0;
tv.tv_usec = 20000;
(void)select(max_nfds + 1,&fdset,0,0,&tv);
if (FD_ISSET(xrf_g2_sock, &fdset)) {
fromlen = sizeof(struct sockaddr_in);
recvlen2 = recvfrom(xrf_g2_sock, (char *)readBuffer2, 100, 0, (struct sockaddr *)&fromDst4, &fromlen);
strncpy(ip, inet_ntoa(fromDst4.sin_addr),IP_SIZE);
ip[IP_SIZE] = '\0';
strncpy(call, (char *)readBuffer2,CALL_SIZE);
call[CALL_SIZE] = '\0';
/* a packet of length (CALL_SIZE + 1) is a keepalive from a repeater/reflector */
/* If it is from a dongle, it is either a keepalive or a request to connect */
if (recvlen2 == (CALL_SIZE + 1)) {
found = false;
/* Find out if it is a keepalive from a repeater */
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port))) {
found = true;
if (!to_remote_g2[i].is_connected) {
tracing[i].last_time = time(NULL);
to_remote_g2[i].is_connected = true;
printf("Connected from: %.*s\n", recvlen2 - 1, readBuffer2);
print_status_file();
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
to_remote_g2[i].countdown = TIMEOUT;
}
}
} else if (recvlen2 == (CALL_SIZE + 6)) {
/* A packet of length (CALL_SIZE + 6) is either an ACK or a NAK from repeater-reflector */
/* Because we sent a request before asking to link */
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port))) {
if ((memcmp((char *)readBuffer2 + 10, "ACK", 3) == 0) &&
(to_remote_g2[i].from_mod == readBuffer2[8])) {
if (!to_remote_g2[i].is_connected) {
tracing[i].last_time = time(NULL);
to_remote_g2[i].is_connected = true;
printf("Connected from: [%s] %c\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
print_status_file();
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
} else if ((memcmp((char *)readBuffer2 + 10, "NAK", 3) == 0) &&
(to_remote_g2[i].from_mod == readBuffer2[8])) {
printf("Link module %c to [%s] %c is rejected\n",
to_remote_g2[i].from_mod, to_remote_g2[i].to_call,
to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_failed_linked.dat_FAILED_TO_LINK",
to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
}
}
}
} else if (recvlen2 == CALL_SIZE + 3) {
/*
A packet of length (CALL_SIZE + 3) is a request
from a remote repeater to link-unlink with our repeater
*/
/* Check our linked repeaters/reflectors */
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port))) {
if (to_remote_g2[i].to_mod == readBuffer2[8]) {
/* unlink request from remote repeater that we know */
if (readBuffer2[9] == ' ') {
printf("Received: %.*s\n", recvlen2 - 1, readBuffer2);
printf("Module %c to [%s] %c is unlinked\n",
to_remote_g2[i].from_mod,
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_unlinked.dat_UNLINKED", to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
} else
/* link request from a remote repeater that we know */
if (
((i == 0) && (readBuffer2[9] == 'A')) ||
((i == 1) && (readBuffer2[9] == 'B')) ||
((i == 2) && (readBuffer2[9] == 'C'))
) {
/*
I HAVE TO ADD CODE here to PREVENT the REMOTE NODE
from LINKING one of their remote modules to
more than one of our local modules
*/
printf("Received: %.*s\n", recvlen2 - 1, readBuffer2);
strncpy(to_remote_g2[i].to_call, (char *)readBuffer2,CALL_SIZE);
to_remote_g2[i].to_call[CALL_SIZE] = '\0';
memcpy(&(to_remote_g2[i].toDst4), &fromDst4, sizeof(struct sockaddr_in));
to_remote_g2[i].toDst4.sin_port = htons(rmt_xrf_port);
to_remote_g2[i].to_mod = readBuffer2[8];
to_remote_g2[i].countdown = TIMEOUT;
to_remote_g2[i].is_connected = true;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
printf("Module %c to [%s] %c linked\n",
readBuffer2[9],
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
tracing[i].last_time = time(NULL);
print_status_file();
/* send back an ACK */
memcpy(readBuffer2 + 10, "ACK", 4);
sendto(xrf_g2_sock, readBuffer2, CALL_SIZE+6, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
if (to_remote_g2[i].from_mod != readBuffer2[9]) {
to_remote_g2[i].from_mod = readBuffer2[9];
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
}
}
}
}
/* link request from remote repeater that is not yet linked to our system */
/* find out which of our local modules the remote repeater is interested in */
i = -1;
if (readBuffer2[9] == 'A')
i = 0;
else if (readBuffer2[9] == 'B')
i = 1;
else if (readBuffer2[9] == 'C')
i = 2;
/* Is this repeater listed in gwys.txt? */
gwy_pos = gwy_list.find(call);
if (gwy_pos == gwy_list.end()) {
/* We did NOT find this repeater in gwys.txt, reject the incoming link request */
printf("Incoming link from %s,%s but not found in gwys.txt\n",call,ip);
i = -1;
} else {
rc = regexec(&preg, call, 0, NULL, 0);
if (rc != 0) {
printf("Invalid repeater %s,%s requesting to link\n", call, ip);
i = -1;
}
}
if (i >= 0) {
/* Is the local repeater module linked to anything ? */
if (to_remote_g2[i].to_mod == ' ') {
if ((readBuffer2[8] == 'A') || (readBuffer2[8] == 'B') || (readBuffer2[8] == 'C') ||
(readBuffer2[8] == 'D') || (readBuffer2[8] == 'E')) {
/*
I HAVE TO ADD CODE here to PREVENT the REMOTE NODE
from LINKING one of their remote modules to
more than one of our local modules
*/
/* now it can be added as a repeater */
strcpy(to_remote_g2[i].to_call, call);
to_remote_g2[i].to_call[CALL_SIZE] = '\0';
memcpy(&(to_remote_g2[i].toDst4), &fromDst4, sizeof(struct sockaddr_in));
to_remote_g2[i].toDst4.sin_port = htons(rmt_xrf_port);
to_remote_g2[i].from_mod = readBuffer2[9];
to_remote_g2[i].to_mod = readBuffer2[8];
to_remote_g2[i].countdown = TIMEOUT;
to_remote_g2[i].is_connected = true;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
tracing[i].last_time = time(NULL);
printf("Received: %.*s\n", recvlen2 - 1, readBuffer2);
printf("Module %c to [%s] %c linked\n",
to_remote_g2[i].from_mod,
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
/* send back an ACK */
memcpy(readBuffer2 + 10, "ACK", 4);
sendto(xrf_g2_sock, readBuffer2, CALL_SIZE+6, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
}
} else {
if (fromDst4.sin_addr.s_addr != to_remote_g2[i].toDst4.sin_addr.s_addr) {
/* Our repeater module is linked to another repeater-reflector */
memcpy(readBuffer2 + 10, "NAK", 4);
fromDst4.sin_port = htons(rmt_xrf_port);
sendto(xrf_g2_sock, readBuffer2, CALL_SIZE+6, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
}
}
}
} else if ( ((recvlen2 == 56) || (recvlen2 == 27)) &&
(0 == memcmp(readBuffer2, "DSVT", 4)) &&
((readBuffer2[4] == 0x10) || (readBuffer2[4] == 0x20)) &&
(readBuffer2[8] == 0x20)) {
/* reset countdown and protect against hackers */
found = false;
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port))) {
to_remote_g2[i].countdown = TIMEOUT;
found = true;
}
}
/* process header */
if ((recvlen2 == 56) && found) {
memset(source_stn, ' ', 9);
source_stn[8] = '\0';
/* some bad hotspot programs out there using INCORRECT flag */
if (readBuffer2[15] == 0x40)
readBuffer2[15] = 0x00;
else if (readBuffer2[15] == 0x48)
readBuffer2[15] = 0x08;
else if (readBuffer2[15] == 0x60)
readBuffer2[15] = 0x20;
else if (readBuffer2[15] == 0x68)
readBuffer2[15] = 0x28;
/* A reflector will send to us its own RPT1 */
/* A repeater will send to us our RPT1 */
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port))) {
/* it is a reflector, reflector's rpt1 */
if ((memcmp(readBuffer2 + 18, to_remote_g2[i].to_call, 7) == 0) &&
(readBuffer2[25] == to_remote_g2[i].to_mod)) {
memcpy(&readBuffer2[18], owner.c_str(), CALL_SIZE);
readBuffer2[25] = to_remote_g2[i].from_mod;
memcpy(&readBuffer2[34], "CQCQCQ ", 8);
memcpy(source_stn, to_remote_g2[i].to_call, 8);
source_stn[7] = to_remote_g2[i].to_mod;
break;
} else
/* it is a repeater, our rpt1 */
if ((memcmp(readBuffer2 + 18, owner.c_str(), CALL_SIZE-1)) &&
(readBuffer2[25] == to_remote_g2[i].from_mod)) {
memcpy(source_stn, to_remote_g2[i].to_call, 8);
source_stn[7] = to_remote_g2[i].to_mod;
break;
}
}
}
/* somebody's crazy idea of having a personal callsign in RPT2 */
/* we must set it to our gateway callsign */
memcpy(&readBuffer2[26], owner.c_str(), CALL_SIZE);
readBuffer2[33] = 'G';
calcPFCS(readBuffer2,56);
/* At this point, all data have our RPT1 and RPT2 */
/* send the data to the repeater/reflector that is linked to our RPT1 */
i = -1;
if (readBuffer2[25] == 'A')
i = 0;
else if (readBuffer2[25] == 'B')
i = 1;
else if (readBuffer2[25] == 'C')
i = 2;
/* are we sure that RPT1 is our system? */
if ((memcmp(readBuffer2 + 18, owner.c_str(), CALL_SIZE-1) == 0) && (i >= 0)) {
/* Last Heard */
if (memcmp(old_sid[i].sid, readBuffer2 + 12, 2) != 0) {
if (qso_details)
printf("START from remote g2: streamID=%d,%d, flags=%02x:%02x:%02x, my=%.8s, sfx=%.4s, ur=%.8s, rpt1=%.8s, rpt2=%.8s, %d bytes fromIP=%s, source=%.8s\n",
readBuffer2[12],readBuffer2[13],
readBuffer2[15], readBuffer2[16], readBuffer2[17],
&readBuffer2[42],
&readBuffer2[50], &readBuffer2[34],
&readBuffer2[18], &readBuffer2[26],
recvlen2,inet_ntoa(fromDst4.sin_addr), source_stn);
// put user into tmp1
memcpy(tmp1, readBuffer2 + 42, 8);
tmp1[8] = '\0';
// delete the user if exists
for (dt_lh_pos = dt_lh_list.begin(); dt_lh_pos != dt_lh_list.end(); dt_lh_pos++) {
if (strcmp((char *)dt_lh_pos->second.c_str(), tmp1) == 0) {
dt_lh_list.erase(dt_lh_pos);
break;
}
}
/* Limit?, delete oldest user */
if (dt_lh_list.size() == LH_MAX_SIZE) {
dt_lh_pos = dt_lh_list.begin();
dt_lh_list.erase(dt_lh_pos);
}
// add user
time(&tnow);
sprintf(tmp2, "%ld=r%.6s%c%c", tnow, source_stn, source_stn[7], readBuffer2[25]);
dt_lh_list[tmp2] = tmp1;
memcpy(old_sid[i].sid, readBuffer2 + 12, 2);
}
/* relay data to our local G2 */
sendto(rptr_sock, readBuffer2,56,0,(struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
/* send data to donglers */
/* no changes here */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
if (fromDst4.sin_addr.s_addr != inbound_ptr->sin.sin_addr.s_addr) {
readBuffer[0] = (unsigned char)(58 & 0xFF);
readBuffer[1] = (unsigned char)(58 >> 8 & 0x1F);
readBuffer[1] = (unsigned char)(readBuffer[1] | 0xFFFFFF80);
memcpy(readBuffer + 2, readBuffer2, 56);
sendto(ref_g2_sock, readBuffer, 58, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
} else
inbound_ptr->mod = readBuffer2[25];
}
/* send the data to the repeater/reflector that is linked to our RPT1 */
/* Is there another local module linked to the remote same xrf mod ? */
/* If Yes, then broadcast */
k = i + 1;
if (k < 3) {
brd_from_xrf_idx = 0;
streamid_raw = (readBuffer2[12] * 256U) + readBuffer2[13];
/* We can only enter this loop up to 2 times max */
for (j = k; j < 3; j++) {
/* it is a remote gateway, not a dongle user */
if ((fromDst4.sin_addr.s_addr == to_remote_g2[j].toDst4.sin_addr.s_addr) &&
/* it is xrf */
(to_remote_g2[j].toDst4.sin_port == htons(rmt_xrf_port)) &&
(memcmp(to_remote_g2[j].to_call, "XRF", 3) == 0) &&
/* it is the same xrf and xrf module */
(memcmp(to_remote_g2[j].to_call, to_remote_g2[i].to_call, 8) == 0) &&
(to_remote_g2[j].to_mod == to_remote_g2[i].to_mod)) {
/* send the packet to another module of our local repeater: this is multi-link */
/* generate new packet */
memcpy(from_xrf_torptr_brd, readBuffer2, 56);
/* different repeater module */
from_xrf_torptr_brd[25] = to_remote_g2[j].from_mod;
/* assign new streamid */
streamid_raw ++;
if (streamid_raw == 0)
streamid_raw ++;
from_xrf_torptr_brd[12] = streamid_raw / 256U;
from_xrf_torptr_brd[13] = streamid_raw % 256U;
calcPFCS(from_xrf_torptr_brd, 56);
/* send the data to the local gateway/repeater */
sendto(rptr_sock, from_xrf_torptr_brd, 56, 0, (struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
/* save streamid for use with the audio packets that will arrive after this header */
brd_from_xrf.xrf_streamid[0] = readBuffer2[12];
brd_from_xrf.xrf_streamid[1] = readBuffer2[13];
brd_from_xrf.rptr_streamid[brd_from_xrf_idx][0] = from_xrf_torptr_brd[12];
brd_from_xrf.rptr_streamid[brd_from_xrf_idx][1] = from_xrf_torptr_brd[13];
brd_from_xrf_idx ++;
}
}
}
if ((to_remote_g2[i].toDst4.sin_addr.s_addr != fromDst4.sin_addr.s_addr) &&
to_remote_g2[i].is_connected) {
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
if ( /*** (memcmp(readBuffer2 + 42, owner, 8) != 0) && ***/ /* block repeater announcements */
(memcmp(readBuffer2 + 34, "CQCQCQ", 6) == 0) && /* CQ calls only */
((readBuffer2[15] == 0x00) || /* normal */
(readBuffer2[15] == 0x08) || /* EMR */
(readBuffer2[15] == 0x20) || /* BK */
(readBuffer2[15] == 0x28)) && /* EMR + BK */
(memcmp(readBuffer2 + 26, owner.c_str(), CALL_SIZE-1) == 0) && /* rpt2 must be us */
(readBuffer2[33] == 'G')) {
to_remote_g2[i].in_streamid[0] = readBuffer2[12];
to_remote_g2[i].in_streamid[1] = readBuffer2[13];
/* inform XRF about the source */
readBuffer2[11] = to_remote_g2[i].from_mod;
memcpy((char *)readBuffer2 + 18, to_remote_g2[i].to_call, CALL_SIZE);
readBuffer2[25] = to_remote_g2[i].to_mod;
memcpy((char *)readBuffer2 + 26, to_remote_g2[i].to_call, CALL_SIZE);
readBuffer2[33] = 'G';
calcPFCS(readBuffer2, 56);
sendto(xrf_g2_sock, readBuffer2, 56, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
}
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port)) {
if ( /*** (memcmp(readBuffer2 + 42, owner, 8) != 0) && ***/ /* block repeater announcements */
(memcmp(readBuffer2 + 34, "CQCQCQ", 6) == 0) && /* CQ calls only */
((readBuffer2[15] == 0x00) || /* normal */
(readBuffer2[15] == 0x08) || /* EMR */
(readBuffer2[15] == 0x20) || /* BK */
(readBuffer2[15] == 0x28)) && /* EMR + BK */
(memcmp(readBuffer2 + 26, owner.c_str(), CALL_SIZE-1) == 0) && /* rpt2 must be us */
(readBuffer2[33] == 'G')) {
to_remote_g2[i].in_streamid[0] = readBuffer2[12];
to_remote_g2[i].in_streamid[1] = readBuffer2[13];
readBuffer[0] = (unsigned char)(58 & 0xFF);
readBuffer[1] = (unsigned char)(58 >> 8 & 0x1F);
readBuffer[1] = (unsigned char)(readBuffer[1] | 0xFFFFFF80);
memcpy(readBuffer + 2, readBuffer2, 56);
memset(readBuffer + 20, ' ', CALL_SIZE);
memcpy(readBuffer + 20, to_remote_g2[i].to_call,
strlen(to_remote_g2[i].to_call));
readBuffer[27] = to_remote_g2[i].to_mod;
memset(readBuffer + 28, ' ', CALL_SIZE);
memcpy(readBuffer + 28, to_remote_g2[i].to_call,
strlen(to_remote_g2[i].to_call));
readBuffer[35] = 'G';
memcpy(&readBuffer[36], "CQCQCQ ", 8);
calcPFCS(readBuffer + 2, 56);
sendto(ref_g2_sock, readBuffer, 58, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
}
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
if ( /*** (memcmp(readBuffer2 + 42, owner, 8) != 0) && ***/ /* block repeater announcements */
(memcmp(readBuffer2 + 34, "CQCQCQ", 6) == 0) && /* CQ calls only */
((readBuffer2[15] == 0x00) || /* normal */
(readBuffer2[15] == 0x08) || /* EMR */
(readBuffer2[15] == 0x20) || /* BK */
(readBuffer2[15] == 0x28)) && /* EMR + BK */
(memcmp(readBuffer2 + 26, owner.c_str(), CALL_SIZE-1) == 0) && /* rpt2 must be us */
(readBuffer2[33] == 'G')) {
to_remote_g2[i].in_streamid[0] = readBuffer2[12];
to_remote_g2[i].in_streamid[1] = readBuffer2[13];
memcpy(xrf_2_dcs[i].mycall, readBuffer2 + 42, 8);
memcpy(xrf_2_dcs[i].sfx, readBuffer2 + 50, 4);
xrf_2_dcs[i].dcs_rptr_seq = 0;
}
}
}
}
} else if (found) {
if ((readBuffer2[14] & 0x40) != 0) {
for (i = 0; i < 3; i++) {
if (memcmp(old_sid[i].sid, readBuffer2 + 12, 2) == 0) {
if (qso_details)
printf("END from remote g2: streamID=%d,%d, %d bytes from IP=%s\n",
readBuffer2[12],readBuffer2[13],recvlen2,inet_ntoa(fromDst4.sin_addr));
memset(old_sid[i].sid, 0x00, 2);
break;
}
}
}
/* relay data to our local G2 */
sendto(rptr_sock, readBuffer2, 27, 0, (struct sockaddr *)&toLocalg2, sizeof(struct sockaddr_in));
/* send data to donglers */
/* no changes here */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
if (fromDst4.sin_addr.s_addr != inbound_ptr->sin.sin_addr.s_addr) {
readBuffer[0] = (unsigned char)(29 & 0xFF);
readBuffer[1] = (unsigned char)(29 >> 8 & 0x1F);
readBuffer[1] = (unsigned char)(readBuffer[1] | 0xFFFFFF80);
memcpy(readBuffer + 2, readBuffer2, 27);
sendto(ref_g2_sock, readBuffer, 29, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
}
/* do we have to broadcast ? */
if (memcmp(brd_from_xrf.xrf_streamid, readBuffer2 + 12, 2) == 0) {
memcpy(from_xrf_torptr_brd, readBuffer2, 27);
if ((brd_from_xrf.rptr_streamid[0][0] != 0x00) ||
(brd_from_xrf.rptr_streamid[0][1] != 0x00)) {
from_xrf_torptr_brd[12] = brd_from_xrf.rptr_streamid[0][0];
from_xrf_torptr_brd[13] = brd_from_xrf.rptr_streamid[0][1];
sendto(rptr_sock, from_xrf_torptr_brd, 27, 0, (struct sockaddr *)&toLocalg2, sizeof(struct sockaddr_in));
}
if ((brd_from_xrf.rptr_streamid[1][0] != 0x00) ||
(brd_from_xrf.rptr_streamid[1][1] != 0x00)) {
from_xrf_torptr_brd[12] = brd_from_xrf.rptr_streamid[1][0];
from_xrf_torptr_brd[13] = brd_from_xrf.rptr_streamid[1][1];
sendto(rptr_sock, from_xrf_torptr_brd, 27, 0, (struct sockaddr *)&toLocalg2, sizeof(struct sockaddr_in));
}
if ((readBuffer2[14] & 0x40) != 0) {
brd_from_xrf.xrf_streamid[0] = brd_from_xrf.xrf_streamid[1] = 0x00;
brd_from_xrf.rptr_streamid[0][0] = brd_from_xrf.rptr_streamid[0][1] = 0x00;
brd_from_xrf.rptr_streamid[1][0] = brd_from_xrf.rptr_streamid[1][1] = 0x00;
brd_from_xrf_idx = 0;
}
}
for (i = 0; i < 3; i++) {
if ((to_remote_g2[i].is_connected) &&
(to_remote_g2[i].toDst4.sin_addr.s_addr != fromDst4.sin_addr.s_addr) &&
(memcmp(to_remote_g2[i].in_streamid, readBuffer2 + 12, 2) == 0)) {
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
/* inform XRF about the source */
readBuffer2[11] = to_remote_g2[i].from_mod;
sendto(xrf_g2_sock, readBuffer2, 27, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port)) {
readBuffer[0] = (unsigned char)(29 & 0xFF);
readBuffer[1] = (unsigned char)(29 >> 8 & 0x1F);
readBuffer[1] = (unsigned char)(readBuffer[1] | 0xFFFFFF80);
memcpy(readBuffer + 2, readBuffer2, 27);
sendto(ref_g2_sock, readBuffer, 29, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
memset(dcs_buf, 0x00, 600);
dcs_buf[0] = dcs_buf[1] = dcs_buf[2] = '0';
dcs_buf[3] = '1';
dcs_buf[4] = dcs_buf[5] = dcs_buf[6] = 0x00;
memcpy(dcs_buf + 7, to_remote_g2[i].to_call, 8);
dcs_buf[14] = to_remote_g2[i].to_mod;
memcpy(dcs_buf + 15, owner.c_str(), CALL_SIZE);
dcs_buf[22] = to_remote_g2[i].from_mod;
memcpy(dcs_buf + 23, "CQCQCQ ", 8);
memcpy(dcs_buf + 31, xrf_2_dcs[i].mycall, 8);
memcpy(dcs_buf + 39, xrf_2_dcs[i].sfx, 4);
dcs_buf[43] = readBuffer2[12]; /* streamid0 */
dcs_buf[44] = readBuffer2[13]; /* streamid1 */
dcs_buf[45] = readBuffer2[14]; /* cycle sequence */
memcpy(dcs_buf + 46, readBuffer2 + 15, 12);
dcs_buf[58] = (xrf_2_dcs[i].dcs_rptr_seq >> 0) & 0xff;
dcs_buf[59] = (xrf_2_dcs[i].dcs_rptr_seq >> 8) & 0xff;
dcs_buf[60] = (xrf_2_dcs[i].dcs_rptr_seq >> 16) & 0xff;
xrf_2_dcs[i].dcs_rptr_seq ++;
dcs_buf[61] = 0x01;
dcs_buf[62] = 0x00;
sendto(dcs_g2_sock, dcs_buf, 100, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
if ((readBuffer2[14] & 0x40) != 0) {
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
}
break;
}
}
}
}
FD_CLR (xrf_g2_sock,&fdset);
}
if (FD_ISSET(ref_g2_sock, &fdset)) {
fromlen = sizeof(struct sockaddr_in);
recvlen2 = recvfrom(ref_g2_sock, (char *)readBuffer2, 100, 0, (struct sockaddr *)&fromDst4,&fromlen);
strncpy(ip, inet_ntoa(fromDst4.sin_addr),IP_SIZE);
ip[IP_SIZE] = '\0';
found = false;
/* LH */
if ((recvlen2 == 4) &&
(readBuffer2[0] == 4) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 7) &&
(readBuffer2[3] == 0)) {
unsigned short j_idx = 0;
unsigned short k_idx = 0;
unsigned char tmp[2];
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
// printf("Remote station %s %s requested LH list\n", inbound_ptr->call, ip);
/* header is 10 bytes */
/* reply type */
readBuffer2[2] = 7;
readBuffer2[3] = 0;
/* it looks like time_t here */
time(&tnow);
memcpy((char *)readBuffer2 + 6, (char *)&tnow, sizeof(time_t));
for (r_dt_lh_pos = dt_lh_list.rbegin(); r_dt_lh_pos != dt_lh_list.rend(); r_dt_lh_pos++) {
/* each entry has 24 bytes */
/* start at position 10 to bypass the header */
strcpy((char *)readBuffer2 + 10 + (24 * j_idx), r_dt_lh_pos->second.c_str());
p = strchr((char *)r_dt_lh_pos->first.c_str(), '=');
if (p) {
memcpy((char *)readBuffer2 + 18 + (24 * j_idx), p + 2, 8);
/* if local or local w/gps */
if ((p[1] == 'l') || (p[1] == 'g'))
readBuffer2[18 + (24 * j_idx) + 6] = *(p + 1);
*p = '\0';
tnow = atol(r_dt_lh_pos->first.c_str());
*p = '=';
memcpy((char *)readBuffer2 + 26 + (24 * j_idx), &tnow, sizeof(time_t));
} else {
memcpy((char *)readBuffer2 + 18 + (24 * j_idx), "ERROR ", 8);
time(&tnow);
memcpy((char *)readBuffer2 + 26 + (24 * j_idx), &tnow, sizeof(time_t));
}
readBuffer2[30 + (24 * j_idx)] = 0;
readBuffer2[31 + (24 * j_idx)] = 0;
readBuffer2[32 + (24 * j_idx)] = 0;
readBuffer2[33 + (24 * j_idx)] = 0;
j_idx++;
/* process 39 entries at a time */
if (j_idx == 39) {
/* 39 * 24 = 936 + 10 header = 946 */
readBuffer2[0] = 0xb2;
readBuffer2[1] = 0xc3;
/* 39 entries */
readBuffer2[4] = 0x27;
readBuffer2[5] = 0x00;
sendto(ref_g2_sock, readBuffer2, 946, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
j_idx = 0;
}
}
if (j_idx != 0) {
k_idx = 10 + (j_idx * 24);
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[0] = tmp[0];
readBuffer2[1] = tmp[1] | 0xc0;
memcpy(tmp, (char *)&j_idx, 2);
readBuffer2[4] = tmp[0];
readBuffer2[5] = tmp[1];
sendto(ref_g2_sock, readBuffer2, k_idx, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
}
}
/* linked repeaters request */
} else if ((recvlen2 == 4) &&
(readBuffer2[0] == 4) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 5) &&
(readBuffer2[3] == 0)) {
unsigned short i_idx = 0;
unsigned short j_idx = 0;
unsigned short k_idx = 0;
unsigned char tmp[2];
unsigned short total = 0;
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
// printf("Remote station %s %s requested linked repeaters list\n", inbound_ptr->call, ip);
/* header is 8 bytes */
/* reply type */
readBuffer2[2] = 5;
readBuffer2[3] = 1;
/* we can have up to 3 linked systems */
total = 3;
memcpy(tmp, (char *)&total, 2);
readBuffer2[6] = tmp[0];
readBuffer2[7] = tmp[1];
for (i = 0, i_idx = 0; i < 3; i++, i_idx++) {
/* each entry has 20 bytes */
if (to_remote_g2[i].to_mod != ' ') {
if (i == 0)
readBuffer2[8 + (20 * j_idx)] = 'A';
else if (i == 1)
readBuffer2[8 + (20 * j_idx)] = 'B';
else if (i == 2)
readBuffer2[8 + (20 * j_idx)] = 'C';
strcpy((char *)readBuffer2 + 9 + (20 * j_idx), to_remote_g2[i].to_call);
readBuffer2[16 + (20 * j_idx)] = to_remote_g2[i].to_mod;
readBuffer2[17 + (20 * j_idx)] = 0;
readBuffer2[18 + (20 * j_idx)] = 0;
readBuffer2[19 + (20 * j_idx)] = 0;
readBuffer2[20 + (20 * j_idx)] = 0x50;
readBuffer2[21 + (20 * j_idx)] = 0x04;
readBuffer2[22 + (20 * j_idx)] = 0x32;
readBuffer2[23 + (20 * j_idx)] = 0x4d;
readBuffer2[24 + (20 * j_idx)] = 0x9f;
readBuffer2[25 + (20 * j_idx)] = 0xdb;
readBuffer2[26 + (20 * j_idx)] = 0x0e;
readBuffer2[27 + (20 * j_idx)] = 0;
j_idx++;
if (j_idx == 39) {
/* 20 bytes for each user, so 39 * 20 = 780 bytes + 8 bytes header = 788 */
readBuffer2[0] = 0x14;
readBuffer2[1] = 0xc3;
k_idx = i_idx - 38;
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[4] = tmp[0];
readBuffer2[5] = tmp[1];
sendto(ref_g2_sock, readBuffer2,788,0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
j_idx = 0;
}
}
}
if (j_idx != 0) {
k_idx = 8 + (j_idx * 20);
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[0] = tmp[0];
readBuffer2[1] = tmp[1] | 0xc0;
if (i_idx > j_idx)
k_idx = i_idx - j_idx;
else
k_idx = 0;
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[4] = tmp[0];
readBuffer2[5] = tmp[1];
sendto(ref_g2_sock, readBuffer2, 8+(j_idx*20), 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
}
}
/* connected user list request */
} else if ((recvlen2 == 4) &&
(readBuffer2[0] == 4) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 6) &&
(readBuffer2[3] == 0)) {
unsigned short i_idx = 0;
unsigned short j_idx = 0;
unsigned short k_idx = 0;
unsigned char tmp[2];
unsigned short total = 0;
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
// printf("Remote station %s %s requested connected user list\n", inbound_ptr->call, ip);
/* header is 8 bytes */
/* reply type */
readBuffer2[2] = 6;
readBuffer2[3] = 0;
/* total connected users */
total = inbound_list.size();
memcpy(tmp, (char *)&total, 2);
readBuffer2[6] = tmp[0];
readBuffer2[7] = tmp[1];
for (pos = inbound_list.begin(), i_idx = 0; pos != inbound_list.end(); pos++, i_idx++) {
/* each entry has 20 bytes */
readBuffer2[8 + (20 * j_idx)] = ' ';
inbound_ptr = (inbound *)pos->second;
readBuffer2[8 + (20 * j_idx)] = inbound_ptr->mod;
strcpy((char *)readBuffer2 + 9 + (20 * j_idx), inbound_ptr->call);
readBuffer2[17 + (20 * j_idx)] = 0;
/* readBuffer2[18 + (20 * j_idx)] = 0; */
readBuffer2[18 + (20 * j_idx)] = inbound_ptr->client;
readBuffer2[19 + (20 * j_idx)] = 0;
readBuffer2[20 + (20 * j_idx)] = 0x0d;
readBuffer2[21 + (20 * j_idx)] = 0x4d;
readBuffer2[22 + (20 * j_idx)] = 0x37;
readBuffer2[23 + (20 * j_idx)] = 0x4d;
readBuffer2[24 + (20 * j_idx)] = 0x6f;
readBuffer2[25 + (20 * j_idx)] = 0x98;
readBuffer2[26 + (20 * j_idx)] = 0x04;
readBuffer2[27 + (20 * j_idx)] = 0;
j_idx++;
if (j_idx == 39) {
/* 20 bytes for each user, so 39 * 20 = 788 bytes + 8 bytes header = 788 */
readBuffer2[0] = 0x14;
readBuffer2[1] = 0xc3;
k_idx = i_idx - 38;
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[4] = tmp[0];
readBuffer2[5] = tmp[1];
sendto(ref_g2_sock, readBuffer2, 788, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
j_idx = 0;
}
}
if (j_idx != 0) {
k_idx = 8 + (j_idx * 20);
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[0] = tmp[0];
readBuffer2[1] = tmp[1] | 0xc0;
if (i_idx > j_idx)
k_idx = i_idx - j_idx;
else
k_idx = 0;
memcpy(tmp, (char *)&k_idx, 2);
readBuffer2[4] = tmp[0];
readBuffer2[5] = tmp[1];
sendto(ref_g2_sock, readBuffer2, 8+(j_idx*20), 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
}
}
/* date request */
} else if ((recvlen2 == 4) &&
(readBuffer2[0] == 4) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 8) &&
(readBuffer2[3] == 0)) {
time_t ltime;
struct tm tm;
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
// printf("Remote station %s %s requested date\n", inbound_ptr->call, ip);
time(&ltime);
localtime_r(&ltime,&tm);
readBuffer2[0] = 34;
readBuffer2[1] = 192;
readBuffer2[2] = 8;
readBuffer2[3] = 0;
readBuffer2[4] = 0xb5;
readBuffer2[5] = 0xae;
readBuffer2[6] = 0x37;
readBuffer2[7] = 0x4d;
snprintf((char *)readBuffer2 + 8, 1024 - 1,
"20%02d/%02d/%02d %02d:%02d:%02d %5.5s",
tm.tm_year % 100, tm.tm_mon+1,tm.tm_mday,
tm.tm_hour,tm.tm_min,tm.tm_sec,
(tzname[0] == NULL)?" ":tzname[0]);
sendto(ref_g2_sock, readBuffer2, 34, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
}
/* version request */
} else if ((recvlen2 == 4) &&
(readBuffer2[0] == 4) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 3) &&
(readBuffer2[3] == 0)) {
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
// printf("Remote station %s %s requested version\n", inbound_ptr->call, ip);
readBuffer2[0] = 9;
readBuffer2[1] = 192;
readBuffer2[2] = 3;
readBuffer2[3] = 0;
strncpy((char *)readBuffer2 + 4, VERSION, 4);
readBuffer2[8] = 0;
sendto(ref_g2_sock, readBuffer2, 9, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
}
} else if ((recvlen2 == 5) &&
(readBuffer2[0] == 5) &&
(readBuffer2[1] == 0) &&
(readBuffer2[2] == 24) &&
(readBuffer2[3] == 0) &&
(readBuffer2[4] == 0)) {
/* reply with the same DISCONNECT */
sendto(ref_g2_sock, readBuffer2, 5, 0, (struct sockaddr *)&fromDst4, sizeof(struct sockaddr_in));
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
printf("Call %s disconnected\n", to_remote_g2[i].to_call);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
}
}
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
if (memcmp(inbound_ptr->call, "1NFO", 4) != 0)
printf("Call %s disconnected\n", inbound_ptr->call);
free(pos->second);
pos->second = NULL;
inbound_list.erase(pos);
}
print_status_file();
}
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
found = true;
if ((recvlen2 == 5) &&
(readBuffer2[0] == 5) &&
(readBuffer2[1] == 0) &&
(readBuffer2[2] == 24) &&
(readBuffer2[3] == 0) &&
(readBuffer2[4] == 1)) {
printf("Connected to call %s\n", to_remote_g2[i].to_call);
queryCommand[0] = 28;
queryCommand[1] = 192;
queryCommand[2] = 4;
queryCommand[3] = 0;
memcpy(queryCommand + 4, login_call.c_str(), CALL_SIZE);
for (j = 11; j > 3; j--) {
if (queryCommand[j] == ' ')
queryCommand[j] = '\0';
else
break;
}
memset(queryCommand + 12, '\0', 8);
memcpy(queryCommand + 20, "DV019999", 8);
// ATTENTION: I should ONLY send once for each distinct
// remote IP, so get out of the loop immediately
sendto(ref_g2_sock, queryCommand,28,0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
break;
}
}
}
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
found = true;
if ((recvlen2 == 8) &&
(readBuffer2[0] == 8) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 4) &&
(readBuffer2[3] == 0)) {
if ((readBuffer2[4] == 79) &&
(readBuffer2[5] == 75) &&
(readBuffer2[6] == 82)) {
if (!to_remote_g2[i].is_connected) {
to_remote_g2[i].is_connected = true;
to_remote_g2[i].countdown = TIMEOUT;
printf("Login OK to call %s mod %c\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
print_status_file();
tracing[i].last_time = time(NULL);
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
} else if ((readBuffer2[4] == 70) &&
(readBuffer2[5] == 65) &&
(readBuffer2[6] == 73) &&
(readBuffer2[7] == 76)) {
printf("Login failed to call %s mod %c\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_failed_linked.dat_FAILED_TO_LINK",
to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
} else if ((readBuffer2[4] == 66) &&
(readBuffer2[5] == 85) &&
(readBuffer2[6] == 83) &&
(readBuffer2[7] == 89)) {
printf("Busy or unknown status from call %s mod %c\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_failed_linked.dat_FAILED_TO_LINK",
to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
}
}
}
}
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
found = true;
if ((recvlen2 == 24) &&
(readBuffer2[0] == 24) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 3) &&
(readBuffer2[3] == 0)) {
j = i;
to_remote_g2[i].countdown = TIMEOUT;
}
}
}
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
found = true;
if (recvlen2 == 3)
to_remote_g2[i].countdown = TIMEOUT;
}
}
/* find out if it is a connected dongle */
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
found = true;
inbound_ptr->countdown = TIMEOUT;
/*** ip is same, do not update port
memcpy((char *)&(inbound_ptr->sin),(char *)&fromDst4, sizeof(struct sockaddr_in));
***/
}
if (!found) {
/*
The incoming packet is not in the list of outbound repeater connections.
and it is not a connected dongle.
In this case, this must be an INCOMING dongle request
*/
if ((recvlen2 == 5) &&
(readBuffer2[0] == 5) &&
(readBuffer2[1] == 0) &&
(readBuffer2[2] == 24) &&
(readBuffer2[3] == 0) &&
(readBuffer2[4] == 1)) {
if ((inbound_list.size() + 1) > max_dongles)
printf("Inbound DONGLE-p connection from %s but over the max_dongles limit of %d\n", ip, (int)inbound_list.size());
else
sendto(ref_g2_sock, readBuffer2, 5, 0, (struct sockaddr *)&fromDst4, sizeof(fromDst4));
} else if ((recvlen2 == 28) &&
(readBuffer2[0] == 28) &&
(readBuffer2[1] == 192) &&
(readBuffer2[2] == 4) &&
(readBuffer2[3] == 0)) {
/* verify callsign */
memcpy(call, readBuffer2 + 4, CALL_SIZE);
call[CALL_SIZE] = '\0';
for (i = 7; i > 0; i--) {
if (call[i] == '\0')
call[i] = ' ';
else
break;
}
if (memcmp(call, "1NFO", 4) != 0)
printf("Inbound DONGLE-p CALL=%s, ip=%s, DV=%.8s\n",
call, ip, readBuffer2 + 20);
if ((inbound_list.size() + 1) > max_dongles)
printf("Inbound DONGLE-p connection from %s but over the max_dongles limit of %d\n", ip, (int)inbound_list.size());
else if (only_admin_login && (admin.find(call) == admin.end()))
printf("Incoming call [%s] from %s not an ADMIN\n", call, ip);
else if (regexec(&preg, call, 0, NULL, 0) != 0) {
printf("Invalid dongle callsign: CALL=%s,ip=%s\n", call, ip);
readBuffer2[0] = 8;
readBuffer2[4] = 70;
readBuffer2[5] = 65;
readBuffer2[6] = 73;
readBuffer2[7] = 76;
sendto(ref_g2_sock, readBuffer2, 8, 0, (struct sockaddr *)&fromDst4, sizeof(fromDst4));
} else {
/* add the dongle to the inbound list */
inbound_ptr = (inbound *)malloc(sizeof(inbound));
if (inbound_ptr) {
inbound_ptr->countdown = TIMEOUT;
memcpy((char *)&(inbound_ptr->sin),(char *)&fromDst4, sizeof(struct sockaddr_in));
strcpy(inbound_ptr->call, call);
inbound_ptr->mod = ' ';
if (memcmp(readBuffer2 + 20, "AP", 2) == 0)
inbound_ptr->client = 'A'; /* dvap */
else if (memcmp(readBuffer2 + 20, "DV019999", 8) == 0)
inbound_ptr->client = 'H'; /* spot */
else
inbound_ptr->client = 'D'; /* dongle */
insert_pair = inbound_list.insert(std::pair<std::string, inbound *>(ip, inbound_ptr));
if (insert_pair.second) {
if (memcmp(inbound_ptr->call, "1NFO", 4) != 0)
printf("new CALL=%s, DONGLE-p, ip=%s, users=%d\n", inbound_ptr->call,ip, (int)inbound_list.size());
readBuffer2[0] = 8;
readBuffer2[4] = 79;
readBuffer2[5] = 75;
readBuffer2[6] = 82;
readBuffer2[7] = 87;
sendto(ref_g2_sock, readBuffer2, 8, 0, (struct sockaddr *)&fromDst4, sizeof(fromDst4));
print_status_file();
} else {
printf("failed to add CALL=%s,ip=%s\n",inbound_ptr->call,ip);
free(inbound_ptr);
inbound_ptr = NULL;
readBuffer2[0] = 8;
readBuffer2[4] = 70;
readBuffer2[5] = 65;
readBuffer2[6] = 73;
readBuffer2[7] = 76;
sendto(ref_g2_sock, readBuffer2, 8, 0, (struct sockaddr *)&fromDst4, sizeof(fromDst4));
}
} else {
printf("malloc() failed for call=%s,ip=%s\n",call,ip);
readBuffer2[0] = 8;
readBuffer2[4] = 70;
readBuffer2[5] = 65;
readBuffer2[6] = 73;
readBuffer2[7] = 76;
sendto(ref_g2_sock, readBuffer2, 8, 0, (struct sockaddr *)&fromDst4, sizeof(fromDst4));
}
}
}
}
if ( ((recvlen2 == 58) ||
(recvlen2 == 29) ||
(recvlen2 == 32)) &&
(memcmp(readBuffer2 + 2, "DSVT", 4) == 0) &&
((readBuffer2[6] == 0x10) ||
(readBuffer2[6] == 0x20)) &&
(readBuffer2[10] == 0x20)) {
/* Is it one of the donglers or repeaters-reflectors */
found = false;
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
to_remote_g2[i].countdown = TIMEOUT;
found = true;
}
}
if (!found) {
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
inbound_ptr->countdown = TIMEOUT;
found = true;
}
}
if ((recvlen2 == 58) && found) {
memset(source_stn, ' ', 9);
source_stn[8] = '\0';
/* some bad hotspot programs out there using INCORRECT flag */
if (readBuffer2[17] == 0x40)
readBuffer2[17] = 0x00;
else if (readBuffer2[17] == 0x48)
readBuffer2[17] = 0x08;
else if (readBuffer2[17] == 0x60)
readBuffer2[17] = 0x20;
else if (readBuffer2[17] == 0x68)
readBuffer2[17] = 0x28;
/* A reflector will send to us its own RPT1 */
/* A repeater will send to us its own RPT1 */
/* A dongleR will send to us our RPT1 */
/* It is from a repeater-reflector, correct rpt1, rpt2 and re-compute pfcs */
for (i = 0; i < 3; i++) {
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port)) &&
(
((memcmp(readBuffer2 + 20, to_remote_g2[i].to_call, 7) == 0) &&
(readBuffer2[27] == to_remote_g2[i].to_mod)) ||
((memcmp(readBuffer2 + 28, to_remote_g2[i].to_call, 7) == 0) &&
(readBuffer2[35] == to_remote_g2[i].to_mod))
)) {
memcpy(&readBuffer2[20], owner.c_str(), CALL_SIZE);
readBuffer2[27] = to_remote_g2[i].from_mod;
memcpy(&readBuffer2[36], "CQCQCQ ", 8);
memcpy(source_stn, to_remote_g2[i].to_call, 8);
source_stn[7] = to_remote_g2[i].to_mod;
break;
}
}
if (i == 3) {
pos = inbound_list.find(ip);
if (pos != inbound_list.end()) {
inbound_ptr = (inbound *)pos->second;
memcpy(source_stn, inbound_ptr->call, 8);
}
}
/* somebody's crazy idea of having a personal callsign in RPT2 */
/* we must set it to our gateway callsign */
memcpy(&readBuffer2[28], owner.c_str(), CALL_SIZE);
readBuffer2[35] = 'G';
calcPFCS(readBuffer2 + 2,56);
/* At this point, all data have our RPT1 and RPT2 */
i = -1;
if (readBuffer2[27] == 'A')
i = 0;
else if (readBuffer2[27] == 'B')
i = 1;
else if (readBuffer2[27] == 'C')
i = 2;
/* are we sure that RPT1 is our system? */
if ((memcmp(readBuffer2 + 20, owner.c_str(), CALL_SIZE-1) == 0) && (i >= 0)) {
/* Last Heard */
if (memcmp(old_sid[i].sid, readBuffer2 + 14, 2) != 0) {
if (qso_details)
printf("START from remote g2: streamID=%d,%d, flags=%02x:%02x:%02x, my=%.8s, sfx=%.4s, ur=%.8s, rpt1=%.8s, rpt2=%.8s, %d bytes fromIP=%s, source=%.8s\n",
readBuffer2[14],readBuffer2[15],
readBuffer2[17], readBuffer2[18], readBuffer2[19],
&readBuffer2[44],
&readBuffer2[52], &readBuffer2[36],
&readBuffer2[20], &readBuffer2[28],
recvlen2, inet_ntoa(fromDst4.sin_addr), source_stn);
// put user into tmp1
memcpy(tmp1, readBuffer2 + 44, 8);
tmp1[8] = '\0';
// delete the user if exists
for (dt_lh_pos = dt_lh_list.begin(); dt_lh_pos != dt_lh_list.end(); dt_lh_pos++) {
if (strcmp((char *)dt_lh_pos->second.c_str(), tmp1) == 0) {
dt_lh_list.erase(dt_lh_pos);
break;
}
}
/* Limit?, delete oldest user */
if (dt_lh_list.size() == LH_MAX_SIZE) {
dt_lh_pos = dt_lh_list.begin();
dt_lh_list.erase(dt_lh_pos);
}
// add user
time(&tnow);
sprintf(tmp2, "%ld=r%.6s%c%c", tnow, source_stn, source_stn[7], readBuffer2[27]);
dt_lh_list[tmp2] = tmp1;
memcpy(old_sid[i].sid, readBuffer2 + 14, 2);
}
/* send the data to the local gateway/repeater */
sendto(rptr_sock, readBuffer2+2, 56, 0, (struct sockaddr *)&toLocalg2, sizeof(struct sockaddr_in));
/* send the data to the donglers */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
if (fromDst4.sin_addr.s_addr != inbound_ptr->sin.sin_addr.s_addr) {
sendto(ref_g2_sock, readBuffer2, 58, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
} else
inbound_ptr->mod = readBuffer2[27];
}
if ((to_remote_g2[i].toDst4.sin_addr.s_addr != fromDst4.sin_addr.s_addr) &&
to_remote_g2[i].is_connected) {
if ( /*** (memcmp(readBuffer2 + 44, owner, 8) != 0) && ***/ /* block repeater announcements */
(memcmp(readBuffer2 + 36, "CQCQCQ", 6) == 0) && /* CQ calls only */
((readBuffer2[17] == 0x00) || /* normal */
(readBuffer2[17] == 0x08) || /* EMR */
(readBuffer2[17] == 0x20) || /* BK */
(readBuffer2[17] == 0x28)) && /* EMR + BK */
(memcmp(readBuffer2 + 28, owner.c_str(), CALL_SIZE-1) == 0) && /* rpt2 must be us */
(readBuffer2[35] == 'G')) {
to_remote_g2[i].in_streamid[0] = readBuffer2[14];
to_remote_g2[i].in_streamid[1] = readBuffer2[15];
if ((to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) ||
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
memcpy((char *)readBuffer2 + 20, to_remote_g2[i].to_call, CALL_SIZE);
readBuffer2[27] = to_remote_g2[i].to_mod;
memcpy((char *)readBuffer2 + 28, to_remote_g2[i].to_call, CALL_SIZE);
readBuffer2[35] = 'G';
calcPFCS(readBuffer2 + 2, 56);
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
/* inform XRF about the source */
readBuffer2[13] = to_remote_g2[i].from_mod;
sendto(xrf_g2_sock, readBuffer2 + 2, 56, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else
sendto(ref_g2_sock, readBuffer2, 58, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
memcpy(ref_2_dcs[i].mycall, readBuffer2 + 44, 8);
memcpy(ref_2_dcs[i].sfx, readBuffer2 + 52, 4);
ref_2_dcs[i].dcs_rptr_seq = 0;
}
}
}
}
} else if (found) {
if ((readBuffer2[16] & 0x40) != 0) {
for (i = 0; i < 3; i++) {
if (memcmp(old_sid[i].sid, readBuffer2 + 14, 2) == 0) {
if (qso_details)
printf("END from remote g2: streamID=%d,%d, %d bytes from IP=%s\n",
readBuffer2[14],readBuffer2[15],recvlen2,inet_ntoa(fromDst4.sin_addr));
memset(old_sid[i].sid, 0x00, 2);
break;
}
}
}
/* send the data to the local gateway/repeater */
sendto(rptr_sock, readBuffer2+2, 27, 0, (struct sockaddr *)&toLocalg2, sizeof(struct sockaddr_in));
/* send the data to the donglers */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
if (fromDst4.sin_addr.s_addr != inbound_ptr->sin.sin_addr.s_addr) {
sendto(ref_g2_sock, readBuffer2, 29, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
}
for (i = 0; i < 3; i++) {
if ((to_remote_g2[i].is_connected) &&
(to_remote_g2[i].toDst4.sin_addr.s_addr != fromDst4.sin_addr.s_addr) &&
(memcmp(to_remote_g2[i].in_streamid, readBuffer2 + 14, 2) == 0)) {
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
/* inform XRF about the source */
readBuffer2[13] = to_remote_g2[i].from_mod;
sendto(xrf_g2_sock, readBuffer2+2, 27, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))
sendto(ref_g2_sock, readBuffer2, 29, 0,(struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
memset(dcs_buf, 0x00, 600);
dcs_buf[0] = dcs_buf[1] = dcs_buf[2] = '0';
dcs_buf[3] = '1';
dcs_buf[4] = dcs_buf[5] = dcs_buf[6] = 0x00;
memcpy(dcs_buf + 7, to_remote_g2[i].to_call, 8);
dcs_buf[14] = to_remote_g2[i].to_mod;
memcpy(dcs_buf + 15, owner.c_str(), CALL_SIZE);
dcs_buf[22] = to_remote_g2[i].from_mod;
memcpy(dcs_buf + 23, "CQCQCQ ", 8);
memcpy(dcs_buf + 31, ref_2_dcs[i].mycall, 8);
memcpy(dcs_buf + 39, ref_2_dcs[i].sfx, 4);
dcs_buf[43] = readBuffer2[14]; /* streamid0 */
dcs_buf[44] = readBuffer2[15]; /* streamid1 */
dcs_buf[45] = readBuffer2[16]; /* cycle sequence */
memcpy(dcs_buf + 46, readBuffer2 + 17, 12);
dcs_buf[58] = (ref_2_dcs[i].dcs_rptr_seq >> 0) & 0xff;
dcs_buf[59] = (ref_2_dcs[i].dcs_rptr_seq >> 8) & 0xff;
dcs_buf[60] = (ref_2_dcs[i].dcs_rptr_seq >> 16) & 0xff;
ref_2_dcs[i].dcs_rptr_seq ++;
dcs_buf[61] = 0x01;
dcs_buf[62] = 0x00;
sendto(dcs_g2_sock, dcs_buf, 100, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
if ((readBuffer2[16] & 0x40) != 0) {
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
}
break;
}
}
}
}
FD_CLR (ref_g2_sock,&fdset);
}
if (FD_ISSET(dcs_g2_sock, &fdset)) {
fromlen = sizeof(struct sockaddr_in);
recvlen2 = recvfrom(dcs_g2_sock,(char *)dcs_buf,1000,
0,(struct sockaddr *)&fromDst4,&fromlen);
strncpy(ip, inet_ntoa(fromDst4.sin_addr),IP_SIZE);
ip[IP_SIZE] = '\0';
/* header, audio */
if ((dcs_buf[0] == '0') && (dcs_buf[1] == '0') &&
(dcs_buf[2] == '0') && (dcs_buf[3] == '1')) {
if (recvlen2 == 100) {
memset(source_stn, ' ', 9);
source_stn[8] = '\0';
/* find out our local module */
for (i = 0; i < 3; i++) {
if ((to_remote_g2[i].is_connected) &&
(fromDst4.sin_addr.s_addr = to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(memcmp(dcs_buf + 7, to_remote_g2[i].to_call, 7) == 0) &&
(to_remote_g2[i].to_mod == dcs_buf[14])) {
memcpy(source_stn, to_remote_g2[i].to_call, 8);
source_stn[7] = to_remote_g2[i].to_mod;
break;
}
}
/* Is it our local module */
if (i < 3) {
/* Last Heard */
if (memcmp(old_sid[i].sid, dcs_buf + 43, 2) != 0) {
if (qso_details)
printf("START from dcs: streamID=%d,%d, my=%.8s, sfx=%.4s, ur=%.8s, rpt1=%.8s, rpt2=%.8s, %d bytes fromIP=%s, source=%.8s\n",
dcs_buf[43],dcs_buf[44],
&dcs_buf[31],
&dcs_buf[39], &dcs_buf[23],
&dcs_buf[7], &dcs_buf[15],
recvlen2,inet_ntoa(fromDst4.sin_addr), source_stn);
// put user into tmp1
memcpy(tmp1, dcs_buf + 31, 8);
tmp1[8] = '\0';
// delete the user if exists
for (dt_lh_pos = dt_lh_list.begin(); dt_lh_pos != dt_lh_list.end(); dt_lh_pos++) {
if (strcmp((char *)dt_lh_pos->second.c_str(), tmp1) == 0) {
dt_lh_list.erase(dt_lh_pos);
break;
}
}
/* Limit?, delete oldest user */
if (dt_lh_list.size() == LH_MAX_SIZE) {
dt_lh_pos = dt_lh_list.begin();
dt_lh_list.erase(dt_lh_pos);
}
// add user
time(&tnow);
sprintf(tmp2, "%ld=r%.6s%c%c", tnow, source_stn, source_stn[7], to_remote_g2[i].from_mod);
dt_lh_list[tmp2] = tmp1;
memcpy(old_sid[i].sid, dcs_buf + 43, 2);
}
to_remote_g2[i].countdown = TIMEOUT;
/* new stream ? */
if ((to_remote_g2[i].in_streamid[0] != dcs_buf[43]) ||
(to_remote_g2[i].in_streamid[1] != dcs_buf[44])) {
to_remote_g2[i].in_streamid[0] = dcs_buf[43];
to_remote_g2[i].in_streamid[1] = dcs_buf[44];
dcs_seq[i] = 0xff;
/* generate our header */
readBuffer2[0] = (unsigned char)(58 & 0xFF);
readBuffer2[1] = (unsigned char)(58 >> 8 & 0x1F);
readBuffer2[1] = (unsigned char)(readBuffer2[1] | 0xFFFFFF80);
memcpy(readBuffer2 + 2, "DSVT", 4);
readBuffer2[6] = 0x10;
readBuffer2[7] = 0x00;
readBuffer2[8] = 0x00;
readBuffer2[9] = 0x00;
readBuffer2[10] = 0x20;
readBuffer2[11] = 0x00;
readBuffer2[12] = 0x01;
if (to_remote_g2[i].from_mod == 'A')
readBuffer2[13] = 0x03;
else if (to_remote_g2[i].from_mod == 'B')
readBuffer2[13] = 0x01;
else
readBuffer2[13] = 0x02;
readBuffer2[14] = dcs_buf[43];
readBuffer2[15] = dcs_buf[44];
readBuffer2[16] = 0x80;
readBuffer2[17] = readBuffer2[18] = readBuffer2[19] = 0x00;
memcpy(readBuffer2 + 20, owner.c_str(), CALL_SIZE);
readBuffer2[27] = to_remote_g2[i].from_mod;
memcpy(readBuffer2 + 28, owner.c_str(), CALL_SIZE);
readBuffer2[35] = 'G';
memcpy(readBuffer2 + 36, "CQCQCQ ", 8);
memcpy(readBuffer2 + 44, dcs_buf + 31, 8);
memcpy(readBuffer2 + 52, dcs_buf + 39, 4);
calcPFCS(readBuffer2 + 2, 56);
/* send the header to the local gateway/repeater */
for (j = 0; j < 5; j++)
sendto(rptr_sock, readBuffer2+2, 56, 0, (struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
/* send the data to the donglers */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
for (j=0; j<5; j++)
sendto(ref_g2_sock, readBuffer2, 58, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
}
if ((to_remote_g2[i].in_streamid[0] == dcs_buf[43]) &&
(to_remote_g2[i].in_streamid[1] == dcs_buf[44]) &&
(dcs_seq[i] != dcs_buf[45])) {
dcs_seq[i] = dcs_buf[45];
readBuffer2[0] = (unsigned char)(29 & 0xFF);
readBuffer2[1] = (unsigned char)(29 >> 8 & 0x1F);
readBuffer2[1] = (unsigned char)(readBuffer2[1] | 0xFFFFFF80);
memcpy(readBuffer2 + 2, "DSVT", 4);
readBuffer2[6] = 0x20;
readBuffer2[7] = 0x00;
readBuffer2[8] = 0x00;
readBuffer2[9] = 0x00;
readBuffer2[10] = 0x20;
readBuffer2[11] = 0x00;
readBuffer2[12] = 0x01;
if (to_remote_g2[i].from_mod == 'A')
readBuffer2[13] = 0x03;
else if (to_remote_g2[i].from_mod == 'B')
readBuffer2[13] = 0x01;
else
readBuffer2[13] = 0x02;
readBuffer2[14] = dcs_buf[43];
readBuffer2[15] = dcs_buf[44];
readBuffer2[16] = dcs_buf[45];
memcpy(readBuffer2 + 17, dcs_buf + 46, 12);
/* send the data to the local gateway/repeater */
sendto(rptr_sock, readBuffer2+2, 27, 0, (struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
/* send the data to the donglers */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
sendto(ref_g2_sock, readBuffer2, 29, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
if ((dcs_buf[45] & 0x40) != 0) {
memset(old_sid[i].sid, 0x00, 2);
if (qso_details)
printf("END from dcs: streamID=%d,%d, %d bytes from IP=%s\n",
dcs_buf[43],dcs_buf[44], recvlen2,inet_ntoa(fromDst4.sin_addr));
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
dcs_seq[i] = 0xff;
}
}
}
}
} else if ((dcs_buf[0] == 'E') && (dcs_buf[1] == 'E') &&
(dcs_buf[2] == 'E') && (dcs_buf[3] == 'E'))
;
else if (recvlen2 == 35)
;
/* is this a keepalive 22 bytes */
else if (recvlen2 == 22) {
i = -1;
if (dcs_buf[17] == 'A')
i = 0;
else if (dcs_buf[17] == 'B')
i = 1;
else if (dcs_buf[17] == 'C')
i = 2;
/* It is one of our valid repeaters */
// DG1HT from owner 8 to 7
if ((i >= 0) && (memcmp(dcs_buf + 9, owner.c_str(), CALL_SIZE-1) == 0)) {
/* is that the remote system that we asked to connect to? */
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) &&
(memcmp(to_remote_g2[i].to_call, dcs_buf, 7) == 0) &&
(to_remote_g2[i].to_mod == dcs_buf[7])) {
if (!to_remote_g2[i].is_connected) {
tracing[i].last_time = time(NULL);
to_remote_g2[i].is_connected = true;
printf("Connected from: %.*s\n", 8, dcs_buf);
print_status_file();
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
to_remote_g2[i].countdown = TIMEOUT;
}
}
} else if (recvlen2 == 14) { /* is this a reply to our link/unlink request: 14 bytes */
i = -1;
if (dcs_buf[8] == 'A')
i = 0;
else if (dcs_buf[8] == 'B')
i = 1;
else if (dcs_buf[8] == 'C')
i = 2;
/* It is one of our valid repeaters */
if ((i >= 0) && (memcmp(dcs_buf, owner.c_str(), CALL_SIZE) == 0)) {
/* It is from a remote that we contacted */
if ((fromDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) &&
(to_remote_g2[i].from_mod == dcs_buf[8])) {
if ((to_remote_g2[i].to_mod == dcs_buf[9]) &&
(memcmp(dcs_buf + 10, "ACK", 3) == 0)) {
to_remote_g2[i].countdown = TIMEOUT;
if (!to_remote_g2[i].is_connected) {
tracing[i].last_time = time(NULL);
to_remote_g2[i].is_connected = true;
printf("Connected from: %.*s\n", 8, to_remote_g2[i].to_call);
print_status_file();
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
} else if (memcmp(dcs_buf + 10, "NAK", 3) == 0) {
printf("Link module %c to [%s] %c is unlinked\n",
to_remote_g2[i].from_mod, to_remote_g2[i].to_call,
to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_failed_linked.dat_UNLINKED",
to_remote_g2[i].from_mod);
audio_notify(notify_msg);
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
}
}
}
}
FD_CLR (dcs_g2_sock,&fdset);
}
if (FD_ISSET(rptr_sock, &fdset)) {
fromlen = sizeof(struct sockaddr_in);
recvlen = recvfrom(rptr_sock, (char *)readBuffer, 100, 0, (struct sockaddr *)&fromRptr,&fromlen);
if ( ((recvlen == 58) || (recvlen == 29) || (recvlen == 32)) &&
(readBuffer[6] == 0x73) &&
(readBuffer[7] == 0x12) &&
((memcmp(readBuffer,"DSTR", 4) == 0) || (memcmp(readBuffer,"CCS_", 4) == 0)) &&
(readBuffer[10] == 0x20) &&
(readBuffer[8] == 0x00) &&
((readBuffer[9] == 0x30) || (readBuffer[9] == 0x13) || (readBuffer[9] == 0x16)) ) {
if (recvlen == 58) {
if (qso_details)
printf("START from local g2: cntr=%02x %02x, streamID=%d,%d, flags=%02x:%02x:%02x, my=%.8s, sfx=%.4s, ur=%.8s, rpt1=%.8s, rpt2=%.8s, %d bytes fromIP=%s\n",
readBuffer[4], readBuffer[5],
readBuffer[14], readBuffer[15],
readBuffer[17], readBuffer[18], readBuffer[19],
readBuffer + 44, readBuffer + 52, readBuffer + 36,
readBuffer + 28, readBuffer + 20, recvlen, inet_ntoa(fromRptr.sin_addr));
/* save mycall */
memcpy(call, readBuffer + 44, 8);
call[8] = '\0';
i = -1;
if (readBuffer[35] == 'A')
i = 0;
else if (readBuffer[35] == 'B')
i = 1;
else if (readBuffer[35] == 'C')
i = 2;
if (i >= 0) {
memcpy(dtmf_mycall[i], readBuffer + 44, 8);
dtmf_mycall[i][8] = '\0';
new_group[i] = true;
GPS_seen[i] = false;
/* Last Heard */
//put user into tmp1
memcpy(tmp1, readBuffer + 44, 8);
tmp1[8] = '\0';
// delete the user if exists
for (dt_lh_pos = dt_lh_list.begin(); dt_lh_pos != dt_lh_list.end(); dt_lh_pos++) {
if (strcmp((char *)dt_lh_pos->second.c_str(), tmp1) == 0) {
dt_lh_list.erase(dt_lh_pos);
break;
}
}
/* Limit?, delete oldest user */
if (dt_lh_list.size() == LH_MAX_SIZE) {
dt_lh_pos = dt_lh_list.begin();
dt_lh_list.erase(dt_lh_pos);
}
/* add user */
time(&tnow);
if (memcmp(readBuffer,"CCS_", 4) == 0)
sprintf(tmp2, "%ld=r%.7s%c", tnow, "-->CCS ", readBuffer[35]);
else
sprintf(tmp2, "%ld=l%.8s", tnow, readBuffer + 28);
dt_lh_list[tmp2] = tmp1;
memcpy(readBuffer, "DSTR", 4);
tracing[i].streamid[0] = readBuffer[14];
tracing[i].streamid[1] = readBuffer[15];
tracing[i].last_time = time(NULL);
}
if ((memcmp(readBuffer + 36, "CQCQCQ", 6) != 0) && (i >= 0)) {
if ((memcmp(readBuffer + 36, owner.c_str(), CALL_SIZE-1) != 0) &&
(readBuffer[43] == 'L') &&
(memcmp(readBuffer + 20, owner.c_str(), CALL_SIZE-1) == 0) &&
(readBuffer[27] == 'G') &&
((readBuffer[17] == 0x00) ||
(readBuffer[17] == 0x08) ||
(readBuffer[17] == 0x20) ||
(readBuffer[17] == 0x28))) {
if (only_link_unlink && (link_unlink_user.find(call) == link_unlink_user.end())) {
printf("link request denied, unauthorized rf user [%s]\n", call);
} else {
memset(temp_repeater, ' ', CALL_SIZE);
memcpy(temp_repeater, readBuffer + 36, CALL_SIZE - 2);
temp_repeater[CALL_SIZE] = '\0';
if ((to_remote_g2[i].to_call[0] == '\0') || /* not linked */
((to_remote_g2[i].to_call[0] != '\0') && /* waiting for a link reply that may never arrive */
!to_remote_g2[i].is_connected))
g2link(readBuffer[35], temp_repeater, readBuffer[42]);
else if (to_remote_g2[i].is_connected) {
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_already_linked.dat_LINKED_%s_%c", to_remote_g2[i].from_mod, linked_remote_system, to_remote_g2[i].to_mod);
audio_notify(notify_msg);
}
}
} else if ((readBuffer[43] == 'U') && (readBuffer[36] == ' ')) {
if (only_link_unlink && (link_unlink_user.find(call) == link_unlink_user.end())) {
printf("unlink request denied, unauthorized rf user [%s]\n", call);
} else {
if (to_remote_g2[i].to_call[0] != '\0') {
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port)) {
/* Check to see if any other local bands are linked to that same IP */
for (j = 0; j < 3; j++) {
if (j != i) {
if ((to_remote_g2[j].toDst4.sin_addr.s_addr == to_remote_g2[i].toDst4.sin_addr.s_addr) &&
(to_remote_g2[j].toDst4.sin_port == htons(rmt_ref_port))) {
printf("Info: Local %c is also linked to %s (different module) %c\n",
to_remote_g2[j].from_mod,
to_remote_g2[j].to_call, to_remote_g2[j].to_mod);
break;
}
}
}
if (j == 3) {
/* nothing else is linked there, send DISCONNECT */
queryCommand[0] = 5;
queryCommand[1] = 0;
queryCommand[2] = 24;
queryCommand[3] = 0;
queryCommand[4] = 0;
sendto(ref_g2_sock, queryCommand, 5, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
strcpy(unlink_request, owner.c_str());
unlink_request[8] = to_remote_g2[i].from_mod;
unlink_request[9] = ' ';
unlink_request[10] = '\0';
for (j = 0; j < 5; j++)
sendto(xrf_g2_sock, unlink_request, CALL_SIZE+3, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
} else {
strcpy(cmd_2_dcs, owner.c_str());
cmd_2_dcs[8] = to_remote_g2[i].from_mod;
cmd_2_dcs[9] = ' ';
cmd_2_dcs[10] = '\0';
memcpy(cmd_2_dcs + 11, to_remote_g2[i].to_call, 8);
for (j=0; j<5; j++)
sendto(dcs_g2_sock, cmd_2_dcs, 19, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
printf("Unlinked from [%s] mod %c\n",
to_remote_g2[i].to_call, to_remote_g2[i].to_mod);
sprintf(notify_msg, "%c_unlinked.dat_UNLINKED", to_remote_g2[i].from_mod);
audio_notify(notify_msg);
/* now zero out this entry */
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
print_status_file();
} else {
sprintf(notify_msg, "%c_already_unlinked.dat_UNLINKED", readBuffer[35]);
audio_notify(notify_msg);
}
}
} else if ((readBuffer[43] == 'I') && (readBuffer[36] == ' ')) {
if (to_remote_g2[i].is_connected) {
strcpy(linked_remote_system, to_remote_g2[i].to_call);
space_p = strchr(linked_remote_system, ' ');
if (space_p)
*space_p = '\0';
sprintf(notify_msg, "%c_linked.dat_LINKED_%s_%c",
to_remote_g2[i].from_mod,
linked_remote_system,
to_remote_g2[i].to_mod);
audio_notify(notify_msg);
} else {
sprintf(notify_msg, "%c_id.dat_%s_NOT_LINKED", readBuffer[35], owner.c_str());
audio_notify(notify_msg);
}
} else if ((readBuffer[43] == 'X') && (readBuffer[36] == ' ') && (admin.find(call) != admin.end())) { // only ADMIN can execute scripts
if (readBuffer[42] != ' ') {
memset(system_cmd, '\0', sizeof(system_cmd));
snprintf(system_cmd, FILENAME_MAX, "%s/exec_%c.sh %s %c &",
announce_dir.c_str(),
readBuffer[42], call, readBuffer[35]);
printf("Executing %s\n", system_cmd);
system(system_cmd);
}
} else if ((readBuffer[42] == 'D') && (readBuffer[36] == ' ') && (admin.find(call) != admin.end())) { // only ADMIN can block dongle users
if (readBuffer[43] == '1') {
max_dongles = saved_max_dongles;
printf("Dongle connections are now allowed\n");
} else if (readBuffer[43] == '0') {
inbound_list.clear();
max_dongles = 0;
printf("Dongle connections are now disallowed\n");
}
} else if ((readBuffer[43] == 'F') && (readBuffer[36] == ' ') && (admin.find(call) != admin.end())) { // only ADMIN can reload gwys.txt
gwy_list.clear();
load_gwys(gwys);
}
}
/* send data to the donglers */
if (inbound_list.size() > 0) {
readBuffer2[0] = (unsigned char)(58 & 0xFF);
readBuffer2[1] = (unsigned char)(58 >> 8 & 0x1F);
readBuffer2[1] = (unsigned char)(readBuffer2[1] | 0xFFFFFF80);
memcpy(readBuffer2 + 2, "DSVT", 4);
readBuffer2[6] = 0x10;
readBuffer2[7] = 0x00;
readBuffer2[8] = 0x00;
readBuffer2[9] = 0x00;
readBuffer2[10] = readBuffer[10];
readBuffer2[11] = readBuffer[11];
readBuffer2[12] = readBuffer[12];
readBuffer2[13] = readBuffer[13];
memcpy(readBuffer2 + 14, readBuffer + 14, 44);
memcpy(readBuffer2 + 20, owner.c_str(), CALL_SIZE);
readBuffer2[27] = readBuffer[35];
memcpy(readBuffer2 + 28, owner.c_str(), CALL_SIZE);
readBuffer2[35] = 'G';
memcpy(&readBuffer2[36], "CQCQCQ ", 8);
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
for (j=0; j<5; j++)
sendto(ref_g2_sock, readBuffer2, 58, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
}
if (i >= 0) {
/* do we have to broadcast ? */
/* make sure the source is linked to xrf */
if ((to_remote_g2[i].is_connected) &&
(memcmp(to_remote_g2[i].to_call, "XRF", 3) == 0) &&
/* only CQCQCQ */
(memcmp(readBuffer + 20, owner.c_str(), CALL_SIZE-1) == 0) &&
(memcmp(readBuffer + 36, "CQCQCQ", 6) == 0) &&
(readBuffer[27] == 'G')) {
brd_from_rptr_idx = 0;
streamid_raw = (readBuffer[14] * 256U) + readBuffer[15];
for (j = 0; j < 3; j++) {
if ((j != i) &&
(to_remote_g2[j].is_connected) &&
(memcmp(to_remote_g2[j].to_call, to_remote_g2[i].to_call, 8) == 0) &&
(to_remote_g2[j].to_mod == to_remote_g2[i].to_mod) &&
(to_remote_g2[j].to_mod != 'E')) {
memcpy(fromrptr_torptr_brd, "DSVT", 4);
fromrptr_torptr_brd[4] = 0x10;
fromrptr_torptr_brd[5] = 0x00;
fromrptr_torptr_brd[6] = 0x00;
fromrptr_torptr_brd[7] = 0x00;
fromrptr_torptr_brd[8] = readBuffer[10];
fromrptr_torptr_brd[9] = readBuffer[11];
fromrptr_torptr_brd[10] = readBuffer[12];
fromrptr_torptr_brd[11] = readBuffer[13];
memcpy(fromrptr_torptr_brd + 12, readBuffer + 14, 44);
streamid_raw ++;
if (streamid_raw == 0)
streamid_raw ++;
fromrptr_torptr_brd[12] = streamid_raw / 256U;
fromrptr_torptr_brd[13] = streamid_raw % 256U;
memcpy(fromrptr_torptr_brd + 18, owner.c_str(), CALL_SIZE);
fromrptr_torptr_brd[25] = to_remote_g2[j].from_mod;
memcpy(fromrptr_torptr_brd + 26, owner.c_str(), CALL_SIZE);
fromrptr_torptr_brd[33] = 'G';
memcpy(fromrptr_torptr_brd + 34, "CQCQCQ ", 8);
calcPFCS(fromrptr_torptr_brd, 56);
sendto(xrf_g2_sock, fromrptr_torptr_brd, 56, 0, (struct sockaddr *)&toLocalg2, sizeof(struct sockaddr_in));
brd_from_rptr.from_rptr_streamid[0] = readBuffer[14];
brd_from_rptr.from_rptr_streamid[1] = readBuffer[15];
brd_from_rptr.to_rptr_streamid[brd_from_rptr_idx][0] = fromrptr_torptr_brd[12];
brd_from_rptr.to_rptr_streamid[brd_from_rptr_idx][1] = fromrptr_torptr_brd[13];
brd_from_rptr_idx ++;
}
}
}
if (to_remote_g2[i].is_connected) {
if ((memcmp(readBuffer + 20, owner.c_str(), 7) == 0) &&
(memcmp(readBuffer + 36, "CQCQCQ", 6) == 0) &&
(readBuffer[27] == 'G')) {
to_remote_g2[i].out_streamid[0] = readBuffer[14];
to_remote_g2[i].out_streamid[1] = readBuffer[15];
if ((to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) ||
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
readBuffer2[0] = (unsigned char)(58 & 0xFF);
readBuffer2[1] = (unsigned char)(58 >> 8 & 0x1F);
readBuffer2[1] = (unsigned char)(readBuffer2[1] | 0xFFFFFF80);
memcpy(readBuffer2 + 2, "DSVT", 4);
readBuffer2[6] = 0x10;
readBuffer2[7] = 0x00;
readBuffer2[8] = 0x00;
readBuffer2[9] = 0x00;
readBuffer2[10] = readBuffer[10];
readBuffer2[11] = readBuffer[11];
readBuffer2[12] = readBuffer[12];
readBuffer2[13] = readBuffer[13];
memcpy(readBuffer2 + 14, readBuffer + 14, 44);
memset(readBuffer2 + 20, ' ', CALL_SIZE);
memcpy(readBuffer2 + 20, to_remote_g2[i].to_call,
strlen(to_remote_g2[i].to_call));
readBuffer2[27] = to_remote_g2[i].to_mod;
memset(readBuffer2 + 28, ' ', CALL_SIZE);
memcpy(readBuffer2 + 28, to_remote_g2[i].to_call,
strlen(to_remote_g2[i].to_call));
readBuffer2[35] = 'G';
memcpy(&readBuffer2[36], "CQCQCQ ", 8);
calcPFCS(readBuffer2 + 2,56);
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
/* inform XRF about the source */
readBuffer2[13] = to_remote_g2[i].from_mod;
for (j=0; j<5; j++)
sendto(xrf_g2_sock, readBuffer2+2, 56, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else {
for (j=0; j<5; j++)
sendto(ref_g2_sock, readBuffer2, 58, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
}
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
memcpy(rptr_2_dcs[i].mycall, readBuffer + 44, 8);
memcpy(rptr_2_dcs[i].sfx, readBuffer + 52, 4);
rptr_2_dcs[i].dcs_rptr_seq = 0;
}
}
}
}
} else {
if (inbound_list.size() > 0) {
readBuffer2[0] = (unsigned char)(29 & 0xFF);
readBuffer2[1] = (unsigned char)(29 >> 8 & 0x1F);
readBuffer2[1] = (unsigned char)(readBuffer2[1] | 0xFFFFFF80);
memcpy(readBuffer2 + 2, "DSVT", 4);
readBuffer2[6] = 0x20;
readBuffer2[7] = 0x00;
readBuffer2[8] = 0x00;
readBuffer2[9] = 0x00;
readBuffer2[10] = readBuffer[10];
readBuffer2[11] = readBuffer[11];
readBuffer2[12] = readBuffer[12];
readBuffer2[13] = readBuffer[13];
memcpy(readBuffer2 + 14, readBuffer + 14, 3);
if (recvlen == 29)
memcpy(readBuffer2 + 17, readBuffer + 17, 12);
else
memcpy(readBuffer2 + 17, readBuffer + 20, 12);
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
sendto(ref_g2_sock, readBuffer2, 29, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
}
for (i=0; i<3; i++) {
if ((to_remote_g2[i].is_connected) &&
(memcmp(to_remote_g2[i].out_streamid, readBuffer + 14, 2) == 0)) {
/* check for broadcast */
if (memcmp(brd_from_rptr.from_rptr_streamid, readBuffer + 14, 2) == 0) {
memcpy(fromrptr_torptr_brd, "DSVT", 4);
fromrptr_torptr_brd[4] = 0x10;
fromrptr_torptr_brd[5] = 0x00;
fromrptr_torptr_brd[6] = 0x00;
fromrptr_torptr_brd[7] = 0x00;
fromrptr_torptr_brd[8] = readBuffer[10];
fromrptr_torptr_brd[9] = readBuffer[11];
fromrptr_torptr_brd[10] = readBuffer[12];
fromrptr_torptr_brd[11] = readBuffer[13];
memcpy(fromrptr_torptr_brd + 12, readBuffer + 14, 3);
if (recvlen == 29)
memcpy(fromrptr_torptr_brd + 15, readBuffer + 17, 12);
else
memcpy(fromrptr_torptr_brd + 15, readBuffer + 20, 12);
if ((brd_from_rptr.to_rptr_streamid[0][0] != 0x00) ||
(brd_from_rptr.to_rptr_streamid[0][1] != 0x00)) {
fromrptr_torptr_brd[12] = brd_from_rptr.to_rptr_streamid[0][0];
fromrptr_torptr_brd[13] = brd_from_rptr.to_rptr_streamid[0][1];
sendto(xrf_g2_sock, fromrptr_torptr_brd, 27, 0, (struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
}
if ((brd_from_rptr.to_rptr_streamid[1][0] != 0x00) ||
(brd_from_rptr.to_rptr_streamid[1][1] != 0x00)) {
fromrptr_torptr_brd[12] = brd_from_rptr.to_rptr_streamid[1][0];
fromrptr_torptr_brd[13] = brd_from_rptr.to_rptr_streamid[1][1];
sendto(xrf_g2_sock, fromrptr_torptr_brd, 27, 0, (struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
}
if ((readBuffer[16] & 0x40) != 0) {
brd_from_rptr.from_rptr_streamid[0] = brd_from_rptr.from_rptr_streamid[1] = 0x00;
brd_from_rptr.to_rptr_streamid[0][0] = brd_from_rptr.to_rptr_streamid[0][1] = 0x00;
brd_from_rptr.to_rptr_streamid[1][0] = brd_from_rptr.to_rptr_streamid[1][1] = 0x00;
brd_from_rptr_idx = 0;
}
}
if ((to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) ||
(to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))) {
readBuffer2[0] = (unsigned char)(29 & 0xFF);
readBuffer2[1] = (unsigned char)(29 >> 8 & 0x1F);
readBuffer2[1] = (unsigned char)(readBuffer2[1] | 0xFFFFFF80);
memcpy(readBuffer2 + 2, "DSVT", 4);
readBuffer2[6] = 0x20;
readBuffer2[7] = 0x00;
readBuffer2[8] = 0x00;
readBuffer2[9] = 0x00;
readBuffer2[10] = readBuffer[10];
readBuffer2[11] = readBuffer[11];
readBuffer2[12] = readBuffer[12];
readBuffer2[13] = readBuffer[13];
memcpy(readBuffer2 + 14, readBuffer + 14, 3);
if (recvlen == 29)
memcpy(readBuffer2 + 17, readBuffer + 17, 12);
else
memcpy(readBuffer2 + 17, readBuffer + 20, 12);
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
/* inform XRF about the source */
readBuffer2[13] = to_remote_g2[i].from_mod;
sendto(xrf_g2_sock, readBuffer2+2, 27, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))
sendto(ref_g2_sock, readBuffer2, 29, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(struct sockaddr_in));
} else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_dcs_port)) {
memset(dcs_buf, 0x00, 600);
dcs_buf[0] = dcs_buf[1] = dcs_buf[2] = '0';
dcs_buf[3] = '1';
dcs_buf[4] = dcs_buf[5] = dcs_buf[6] = 0x00;
memcpy(dcs_buf + 7, to_remote_g2[i].to_call, 8);
dcs_buf[14] = to_remote_g2[i].to_mod;
memcpy(dcs_buf + 15, owner.c_str(), CALL_SIZE);
dcs_buf[22] = to_remote_g2[i].from_mod;
memcpy(dcs_buf + 23, "CQCQCQ ", 8);
memcpy(dcs_buf + 31, rptr_2_dcs[i].mycall, 8);
memcpy(dcs_buf + 39, rptr_2_dcs[i].sfx, 4);
dcs_buf[43] = readBuffer[14]; /* streamid0 */
dcs_buf[44] = readBuffer[15]; /* streamid1 */
dcs_buf[45] = readBuffer[16]; /* cycle sequence */
memcpy(dcs_buf + 46, readBuffer + 17, 12);
dcs_buf[58] = (rptr_2_dcs[i].dcs_rptr_seq >> 0) & 0xff;
dcs_buf[59] = (rptr_2_dcs[i].dcs_rptr_seq >> 8) & 0xff;
dcs_buf[60] = (rptr_2_dcs[i].dcs_rptr_seq >> 16) & 0xff;
rptr_2_dcs[i].dcs_rptr_seq ++;
dcs_buf[61] = 0x01;
dcs_buf[62] = 0x00;
sendto(dcs_g2_sock, dcs_buf, 100, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
if ((readBuffer[16] & 0x40) != 0) {
to_remote_g2[i].out_streamid[0] = 0x00;
to_remote_g2[i].out_streamid[1] = 0x00;
}
break;
}
}
for (i = 0; i < 3; i++) {
if (memcmp(tracing[i].streamid, readBuffer + 14, 2) == 0) {
/* update the last time RF user talked */
tracing[i].last_time = time(NULL);
if ((readBuffer[16] & 0x40) != 0) {
if (qso_details)
printf("END from local g2: cntr=%02x %02x, streamID=%d,%d, %d bytes\n",
readBuffer[4], readBuffer[5],
readBuffer[14],readBuffer[15],recvlen);
if (bool_rptr_ack)
rptr_ack(i);
memset(dtmf_mycall[i], 0, sizeof(dtmf_mycall[i]));
new_group[i] = true;
GPS_seen[i] = false;
tracing[i].streamid[0] = 0x00;
tracing[i].streamid[1] = 0x00;
} else {
if (!GPS_seen[i]) {
if (recvlen == 29)
memcpy(tmp_txt, readBuffer + 26, 3);
else
memcpy(tmp_txt, readBuffer + 29, 3);
if ((tmp_txt[0] != 0x55) || (tmp_txt[1] != 0x2d) || (tmp_txt[2] != 0x16)) {
if (new_group[i]) {
tmp_txt[0] = tmp_txt[0] ^ 0x70;
header_type = tmp_txt[0] & 0xf0;
if ((header_type == 0x50) || /* header */
(header_type == 0xc0)) /* squelch */
new_group[i] = false;
else if (header_type == 0x30) { /* GPS or GPS id or APRS */
GPS_seen[i] = true;
new_group[i] = false;
memcpy(tmp1, dtmf_mycall[i], 8);
tmp1[8] = '\0';
// delete the user if exists and it is a local RF entry
p_tmp2 = NULL;
for (dt_lh_pos = dt_lh_list.begin(); dt_lh_pos != dt_lh_list.end(); dt_lh_pos++) {
if (strcmp((char *)dt_lh_pos->second.c_str(), tmp1) == 0) {
strcpy(tmp2, (char *)dt_lh_pos->first.c_str());
p_tmp2 = strstr(tmp2, "=l");
if (p_tmp2) {
dt_lh_list.erase(dt_lh_pos);
break;
}
}
}
/* we have tmp1 and tmp2, we have the user and it is already been removed */
/* add the user with gps indicator g */
if (p_tmp2) {
*(p_tmp2 + 1) = 'g';
dt_lh_list[tmp2] = tmp1;
}
} else if (header_type == 0x40) /* ABC text */
new_group[i] = false;
else
new_group[i] = false;
} else
new_group[i] = true;
}
}
}
break;
}
}
}
}
FD_CLR (rptr_sock,&fdset);
}
}
}
void audio_notify(char *msg)
{
if (!announce)
return;
short int i = 0;
static char notify_msg[3][64];
if (*msg == 'A')
i = 0;
else if (*msg == 'B')
i = 1;
else if (*msg == 'C')
i = 2;
strcpy(notify_msg[i], msg);
try {
std::async(std::launch::async, AudioNotifyThread, notify_msg[i]);
} catch (const std::exception &e) {
printf ("Failed to start AudioNotifyThread(). Exception: %s\n", e.what());
}
return;
}
static void AudioNotifyThread(char *arg)
{
char notify_msg[64];
strcpy(notify_msg, (char *)arg);
unsigned short rlen = 0;
size_t nread = 0;
unsigned char dstar_buf[56];
bool useTEXT = false;
short int TEXT_idx = 0;
char RADIO_ID[21];
char temp_file[FILENAME_MAX + 1];
FILE *fp = NULL;
char mod;
char *p = NULL;
u_int16_t streamid_raw = 0;
unsigned int aseed;
time_t tnow = 0;
struct sigaction act;
/* example: A_linked.dat_LINKED_TO_XRF005_A */
/* example: A_unlinked.dat */
/* example: A_failed_linked.dat */
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;
}
memset(RADIO_ID, ' ', 20);
RADIO_ID[20] = '\0';
mod = notify_msg[0];
if ((mod != 'A') && (mod != 'B') && (mod != 'C')) {
printf("Invalid module %c in %s\n", mod, notify_msg);
return;
}
p = strstr(notify_msg, ".dat");
if (!p) {
printf("Incorrect filename in %s\n", notify_msg);
return;
}
if (p[4] == '_') {
useTEXT = true;
memcpy(RADIO_ID, p + 5, (strlen(p + 5) > 20)?20:strlen(p + 5));
for (TEXT_idx = 0; TEXT_idx < 20; TEXT_idx++) {
RADIO_ID[TEXT_idx] = toupper(RADIO_ID[TEXT_idx]);
if (RADIO_ID[TEXT_idx] == '_')
RADIO_ID[TEXT_idx] = ' ';
}
TEXT_idx = 0;
p[4] = '\0';
} else
useTEXT = false;
sleep(delay_before);
memset(temp_file, '\0', sizeof(temp_file));
snprintf(temp_file, FILENAME_MAX, "%s/%s", announce_dir.c_str(), notify_msg + 2);
printf("sending File:[%s], mod:[%c], RADIO_ID=[%s]\n", temp_file, mod, RADIO_ID);
fp = fopen(temp_file, "rb");
if (!fp) {
printf("Failed to open file %s for reading\n", temp_file);
return;
}
/* stupid DVTOOL + 4 byte num_of_records */
nread = fread(dstar_buf, 10, 1, fp);
if (nread != 1) {
printf("Cant read first 10 bytes from %s\n", temp_file);
fclose(fp);
return;
}
if (memcmp(dstar_buf, "DVTOOL", 6) != 0) {
printf("DVTOOL keyword not found in %s\n", temp_file);
fclose(fp);
return;
}
time(&tnow);
aseed = tnow + pthread_self();
while (keep_running) {
/* 2 byte length */
nread = fread(&rlen, 2, 1, fp);
if (nread != 1)
break;
if (rlen == 56)
streamid_raw = (::rand_r(&aseed) % 65535U) + 1U;
else if (rlen == 27)
;
else {
printf("Not 56-byte and not 27-byte in %s\n", temp_file);
break;
}
nread = fread(dstar_buf, rlen, 1, fp);
if (nread == 1) {
if (memcmp(dstar_buf, "DSVT", 4) != 0) {
printf("DVST not found in %s\n", temp_file);
break;
}
if (dstar_buf[8] != 0x20) {
printf("Not Voice type in %s\n", temp_file);
break;
}
if (dstar_buf[4] == 0x10)
;
else if (dstar_buf[4] == 0x20)
;
else {
printf("Not a valid record type in %s\n", temp_file);
break;
}
dstar_buf[12] = streamid_raw / 256U;
dstar_buf[13] = streamid_raw % 256U;
if (rlen == 56) {
dstar_buf[15] = 0x01;
memcpy(dstar_buf + 18, owner.c_str(), CALL_SIZE);
dstar_buf[25] = mod;
memcpy(dstar_buf + 26, owner.c_str(), CALL_SIZE);
dstar_buf[33] = 'G';
memcpy(dstar_buf + 34, "CQCQCQ ", 8);
memcpy(dstar_buf + 42, owner.c_str(), CALL_SIZE);
dstar_buf[48] = ' ';
dstar_buf[49] = ' ';
memcpy(dstar_buf + 50, "RPTR", 4);
calcPFCS(dstar_buf, 56);
} else {
if (useTEXT) {
if ((dstar_buf[24] != 0x55) ||
(dstar_buf[25] != 0x2d) ||
(dstar_buf[26] != 0x16)) {
if (TEXT_idx == 0) {
dstar_buf[24] = '@' ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 2) {
dstar_buf[24] = RADIO_ID[TEXT_idx++] ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 5) {
dstar_buf[24] = 'A' ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 7) {
dstar_buf[24] = RADIO_ID[TEXT_idx++] ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 10) {
dstar_buf[24] = 'B' ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 12) {
dstar_buf[24] = RADIO_ID[TEXT_idx++] ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 15) {
dstar_buf[24] = 'C' ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else if (TEXT_idx == 17) {
dstar_buf[24] = RADIO_ID[TEXT_idx++] ^ 0x70;
dstar_buf[25] = RADIO_ID[TEXT_idx++] ^ 0x4f;
dstar_buf[26] = RADIO_ID[TEXT_idx++] ^ 0x93;
} else {
dstar_buf[24] = 0x70;
dstar_buf[25] = 0x4f;
dstar_buf[26] = 0x93;
}
}
}
}
sendto(rptr_sock, dstar_buf, rlen, 0, (struct sockaddr *)&toLocalg2,sizeof(struct sockaddr_in));
}
std::this_thread::sleep_for(std::chrono::milliseconds(delay_between));
}
fclose(fp);
return;
}
int main(int argc, char **argv)
{
short i, j;
struct sigaction act;
char unlink_request[CALL_SIZE + 3];
inbound_type::iterator pos;
inbound *inbound_ptr;
char cmd_2_dcs[19];
tzset();
setvbuf(stdout, (char *)NULL, _IOLBF, 0);
if (argc != 2) {
printf("Usage: ./g2_link g2_link.cfg\n");
return 1;
}
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 != 0) {
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;
}
for (i = 0; i < 3; i++) {
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
to_remote_g2[i].out_streamid[0] = 0x00;
to_remote_g2[i].out_streamid[1] = 0x00;
}
brd_from_xrf.xrf_streamid[0] = brd_from_xrf.xrf_streamid[1] = 0x00;
brd_from_xrf.rptr_streamid[0][0] = brd_from_xrf.rptr_streamid[0][1] = 0x00;
brd_from_xrf.rptr_streamid[1][0] = brd_from_xrf.rptr_streamid[1][1] = 0x00;
brd_from_xrf_idx = 0;
brd_from_rptr.from_rptr_streamid[0] = brd_from_rptr.from_rptr_streamid[1] = 0x00;
brd_from_rptr.to_rptr_streamid[0][0] = brd_from_rptr.to_rptr_streamid[0][1] = 0x00;
brd_from_rptr.to_rptr_streamid[1][0] = brd_from_rptr.to_rptr_streamid[1][1] = 0x00;
brd_from_rptr_idx = 0;
do {
/* process configuration file */
if (!read_config(argv[1])) {
printf("Failed to process config file %s\n", argv[1]);
break;
}
print_status_file();
/* Open DB */
if (!load_gwys(gwys))
break;
/* create our server */
if (!srv_open()) {
printf("srv_open() failed\n");
break;
}
printf("g2_link %s initialized...entering processing loop\n", VERSION);
runit();
printf("Leaving processing loop...\n");
} while (false);
/* Clear connections */
queryCommand[0] = 5;
queryCommand[1] = 0;
queryCommand[2] = 24;
queryCommand[3] = 0;
queryCommand[4] = 0;
for (i = 0; i < 3; i++) {
if (to_remote_g2[i].to_call[0] != '\0') {
if (to_remote_g2[i].toDst4.sin_port == htons(rmt_ref_port))
sendto(ref_g2_sock, queryCommand, 5, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
else if (to_remote_g2[i].toDst4.sin_port == htons(rmt_xrf_port)) {
strcpy(unlink_request, owner.c_str());
unlink_request[8] = to_remote_g2[i].from_mod;
unlink_request[9] = ' ';
unlink_request[10] = '\0';
for (j=0; j<5; j++)
sendto(xrf_g2_sock, unlink_request, CALL_SIZE+3, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
} else {
strcpy(cmd_2_dcs, owner.c_str());
cmd_2_dcs[8] = to_remote_g2[i].from_mod;
cmd_2_dcs[9] = ' ';
cmd_2_dcs[10] = '\0';
memcpy(cmd_2_dcs + 11, to_remote_g2[i].to_call, 8);
for (j=0; j<5; j++)
sendto(dcs_g2_sock, cmd_2_dcs, 19, 0, (struct sockaddr *)&(to_remote_g2[i].toDst4), sizeof(to_remote_g2[i].toDst4));
}
}
to_remote_g2[i].to_call[0] = '\0';
memset(&(to_remote_g2[i].toDst4),0,sizeof(struct sockaddr_in));
to_remote_g2[i].from_mod = ' ';
to_remote_g2[i].to_mod = ' ';
to_remote_g2[i].countdown = 0;
to_remote_g2[i].is_connected = false;
to_remote_g2[i].in_streamid[0] = 0x00;
to_remote_g2[i].in_streamid[1] = 0x00;
to_remote_g2[i].out_streamid[0] = 0x00;
to_remote_g2[i].out_streamid[1] = 0x00;
}
/* tell inbound dongles we are down */
for (pos = inbound_list.begin(); pos != inbound_list.end(); pos++) {
inbound_ptr = (inbound *)pos->second;
sendto(ref_g2_sock, queryCommand, 5, 0, (struct sockaddr *)&(inbound_ptr->sin), sizeof(struct sockaddr_in));
}
inbound_list.clear();
print_status_file();
srv_close();
printf("g2_link exiting\n");
return 0;
}
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