238 lines
9.2 KiB
C
238 lines
9.2 KiB
C
// view1090, a Mode S messages viewer for dump1090 devices.
|
|
//
|
|
// Copyright (C) 2014 by Malcolm Robb <Support@ATTAvionics.com>
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// * Redistributions in binary form must reproduce the above copyright
|
|
// notice, this list of conditions and the following disclaimer in the
|
|
// documentation and/or other materials provided with the distribution.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
#include "dump1090.h"
|
|
//
|
|
// ============================= Utility functions ==========================
|
|
//
|
|
void sigintHandler(int dummy) {
|
|
MODES_NOTUSED(dummy);
|
|
signal(SIGINT, SIG_DFL); // reset signal handler - bit extra safety
|
|
Modes.exit = 1; // Signal to threads that we are done
|
|
}
|
|
|
|
void receiverPositionChanged(float lat, float lon, float alt)
|
|
{
|
|
/* nothing */
|
|
(void) lat;
|
|
(void) lon;
|
|
(void) alt;
|
|
}
|
|
|
|
//
|
|
// =============================== Initialization ===========================
|
|
//
|
|
void view1090InitConfig(void) {
|
|
// Default everything to zero/NULL
|
|
memset(&Modes, 0, sizeof(Modes));
|
|
|
|
// Now initialise things that should not be 0/NULL to their defaults
|
|
Modes.check_crc = 1;
|
|
Modes.interactive_display_ttl = MODES_INTERACTIVE_DISPLAY_TTL;
|
|
Modes.interactive = 1;
|
|
Modes.maxRange = 1852 * 300; // 300NM default max range
|
|
}
|
|
//
|
|
//=========================================================================
|
|
//
|
|
void view1090Init(void) {
|
|
|
|
pthread_mutex_init(&Modes.data_mutex,NULL);
|
|
pthread_cond_init(&Modes.data_cond,NULL);
|
|
|
|
#ifdef _WIN32
|
|
if ( (!Modes.wsaData.wVersion)
|
|
&& (!Modes.wsaData.wHighVersion) ) {
|
|
// Try to start the windows socket support
|
|
if (WSAStartup(MAKEWORD(2,1),&Modes.wsaData) != 0)
|
|
{
|
|
fprintf(stderr, "WSAStartup returned Error\n");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Validate the users Lat/Lon home location inputs
|
|
if ( (Modes.fUserLat > 90.0) // Latitude must be -90 to +90
|
|
|| (Modes.fUserLat < -90.0) // and
|
|
|| (Modes.fUserLon > 360.0) // Longitude must be -180 to +360
|
|
|| (Modes.fUserLon < -180.0) ) {
|
|
Modes.fUserLat = Modes.fUserLon = 0.0;
|
|
} else if (Modes.fUserLon > 180.0) { // If Longitude is +180 to +360, make it -180 to 0
|
|
Modes.fUserLon -= 360.0;
|
|
}
|
|
// If both Lat and Lon are 0.0 then the users location is either invalid/not-set, or (s)he's in the
|
|
// Atlantic ocean off the west coast of Africa. This is unlikely to be correct.
|
|
// Set the user LatLon valid flag only if either Lat or Lon are non zero. Note the Greenwich meridian
|
|
// is at 0.0 Lon,so we must check for either fLat or fLon being non zero not both.
|
|
// Testing the flag at runtime will be much quicker than ((fLon != 0.0) || (fLat != 0.0))
|
|
Modes.bUserFlags &= ~MODES_USER_LATLON_VALID;
|
|
if ((Modes.fUserLat != 0.0) || (Modes.fUserLon != 0.0)) {
|
|
Modes.bUserFlags |= MODES_USER_LATLON_VALID;
|
|
}
|
|
|
|
// Prepare error correction tables
|
|
modesChecksumInit(Modes.nfix_crc);
|
|
icaoFilterInit();
|
|
modeACInit();
|
|
interactiveInit();
|
|
}
|
|
|
|
//
|
|
// ================================ Main ====================================
|
|
//
|
|
void showHelp(void) {
|
|
printf(
|
|
"-----------------------------------------------------------------------------\n"
|
|
"| view1090 ModeS Viewer %45s |\n"
|
|
"-----------------------------------------------------------------------------\n"
|
|
"--no-interactive Disable interactive mode, print messages to stdout\n"
|
|
"--interactive-ttl <sec> Remove from list if idle for <sec> (default: 60)\n"
|
|
"--modeac Enable decoding of SSR modes 3/A & 3/C\n"
|
|
"--net-bo-ipaddr <IPv4> TCP Beast output listen IPv4 (default: 127.0.0.1)\n"
|
|
"--net-bo-port <port> TCP Beast output listen port (default: 30005)\n"
|
|
"--lat <latitude> Reference/receiver latitide for surface posn (opt)\n"
|
|
"--lon <longitude> Reference/receiver longitude for surface posn (opt)\n"
|
|
"--max-range <distance> Absolute maximum range for position decoding (in nm, default: 300)\n"
|
|
"--no-crc-check Disable messages with broken CRC (discouraged)\n"
|
|
"--no-fix Disable single-bits error correction using CRC\n"
|
|
"--fix Enable single-bits error correction using CRC\n"
|
|
"--aggressive More CPU for more messages (two bits fixes, ...)\n"
|
|
"--metric Use metric units (meters, km/h, ...)\n"
|
|
"--show-only <addr> Show only messages from the given ICAO on stdout\n"
|
|
"--help Show this help\n",
|
|
MODES_DUMP1090_VARIANT " " MODES_DUMP1090_VERSION
|
|
);
|
|
}
|
|
|
|
//
|
|
//=========================================================================
|
|
//
|
|
int main(int argc, char **argv) {
|
|
int j;
|
|
struct client *c;
|
|
struct net_service *s;
|
|
char *bo_connect_ipaddr = "127.0.0.1";
|
|
int bo_connect_port = 30005;
|
|
|
|
// Set sane defaults
|
|
|
|
view1090InitConfig();
|
|
signal(SIGINT, sigintHandler); // Define Ctrl/C handler (exit program)
|
|
|
|
// Parse the command line options
|
|
for (j = 1; j < argc; j++) {
|
|
int more = ((j + 1) < argc); // There are more arguments
|
|
|
|
if (!strcmp(argv[j],"--net-bo-port") && more) {
|
|
bo_connect_port = atoi(argv[++j]);
|
|
} else if (!strcmp(argv[j],"--net-bo-ipaddr") && more) {
|
|
bo_connect_ipaddr = argv[++j];
|
|
} else if (!strcmp(argv[j],"--modeac")) {
|
|
Modes.mode_ac = 1;
|
|
} else if (!strcmp(argv[j],"--no-interactive")) {
|
|
Modes.interactive = 0;
|
|
} else if (!strcmp(argv[j],"--show-only") && more) {
|
|
Modes.show_only = (uint32_t) strtoul(argv[++j], NULL, 16);
|
|
Modes.interactive = 0;
|
|
} else if (!strcmp(argv[j],"--interactive-ttl") && more) {
|
|
Modes.interactive_display_ttl = (uint64_t)(1000 * atof(argv[++j]));
|
|
} else if (!strcmp(argv[j],"--lat") && more) {
|
|
Modes.fUserLat = atof(argv[++j]);
|
|
} else if (!strcmp(argv[j],"--lon") && more) {
|
|
Modes.fUserLon = atof(argv[++j]);
|
|
} else if (!strcmp(argv[j],"--metric")) {
|
|
Modes.metric = 1;
|
|
} else if (!strcmp(argv[j],"--no-crc-check")) {
|
|
Modes.check_crc = 0;
|
|
} else if (!strcmp(argv[j],"--fix")) {
|
|
Modes.nfix_crc = 1;
|
|
} else if (!strcmp(argv[j],"--no-fix")) {
|
|
Modes.nfix_crc = 0;
|
|
} else if (!strcmp(argv[j],"--aggressive")) {
|
|
Modes.nfix_crc = MODES_MAX_BITERRORS;
|
|
} else if (!strcmp(argv[j],"--max-range") && more) {
|
|
Modes.maxRange = atof(argv[++j]) * 1852.0; // convert to metres
|
|
} else if (!strcmp(argv[j],"--help")) {
|
|
showHelp();
|
|
exit(0);
|
|
} else {
|
|
fprintf(stderr, "Unknown or not enough arguments for option '%s'.\n\n", argv[j]);
|
|
showHelp();
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
// Try to comply with the Copyright license conditions for binary distribution
|
|
if (!Modes.quiet) {showCopyright();}
|
|
#define MSG_DONTWAIT 0
|
|
#endif
|
|
|
|
// Initialization
|
|
view1090Init();
|
|
modesInitNet();
|
|
|
|
// Try to connect to the selected ip address and port. We only support *ONE* input connection which we initiate.here.
|
|
s = makeBeastInputService();
|
|
c = serviceConnect(s, bo_connect_ipaddr, bo_connect_port);
|
|
if (!c) {
|
|
fprintf(stderr, "Failed to connect to %s:%d: %s\n", bo_connect_ipaddr, bo_connect_port, Modes.aneterr);
|
|
exit(1);
|
|
}
|
|
|
|
sendBeastSettings(c, "Cd"); // Beast binary format, no filters
|
|
sendBeastSettings(c, Modes.mode_ac ? "J" : "j"); // Mode A/C on or off
|
|
sendBeastSettings(c, Modes.check_crc ? "f" : "F"); // CRC checks on or off
|
|
|
|
// Keep going till the user does something that stops us
|
|
while (!Modes.exit) {
|
|
icaoFilterExpire();
|
|
trackPeriodicUpdate();
|
|
modesNetPeriodicWork();
|
|
|
|
if (Modes.interactive)
|
|
interactiveShowData();
|
|
|
|
if (s->connections == 0) {
|
|
// lost input connection, try to reconnect
|
|
usleep(1000000);
|
|
c = serviceConnect(s, bo_connect_ipaddr, bo_connect_port);
|
|
continue;
|
|
}
|
|
|
|
usleep(100000);
|
|
}
|
|
|
|
interactiveCleanup();
|
|
return (0);
|
|
}
|
|
//
|
|
//=========================================================================
|
|
//
|