// ppup1090, a Mode S PlanePlotter Uploader for dump1090 devices.

//

// Copyright (C) 2013 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 "coaa.h"

#include "ppup1090.h"

//

// ============================= Utility functions ==========================

//

void sigintHandler(int dummy) {

NOTUSED(dummy);

signal(SIGINT, SIG_DFL); // reset signal handler - bit extra safety

Modes.exit = 1; // Signal to threads that we are done

}

//

// =============================== Initialization ===========================

//

void ppup1090InitConfig(void) {

int iErr;

// Default everything to zero/NULL

memset(&Modes, 0, sizeof(Modes));

memset(&ppup1090, 0, sizeof(ppup1090));

// Now initialise things that should not be 0/NULL to their defaults

Modes.check_crc = 1;

Modes.quiet = 1;

strcpy(ppup1090.net_input_beast_ipaddr,PPUP1090_NET_OUTPUT_IP_ADDRESS);

Modes.net_input_beast_port = MODES_NET_OUTPUT_BEAST_PORT;

Modes.interactive_delete_ttl = MODES_INTERACTIVE_DELETE_TTL;

Modes.interactive_display_ttl = MODES_INTERACTIVE_DISPLAY_TTL;

Modes.fUserLat = MODES_USER_LATITUDE_DFLT;

Modes.fUserLon = MODES_USER_LONGITUDE_DFLT;

if ((iErr = openCOAA()))

{

fprintf(stderr, "Error 0x%X initialising uploader\n", iErr);

exit(1);

}

}

//

//=========================================================================

//

void ppup1090Init(void) {

int iErr;

// Allocate the various buffers used by Modes

if ( NULL == (Modes.icao_cache = (uint32_t *) malloc(sizeof(uint32_t) * MODES_ICAO_CACHE_LEN * 2)))

{

fprintf(stderr, "Out of memory allocating data buffer.\n");

exit(1);

}

// Clear the buffers that have just been allocated, just in-case

memset(Modes.icao_cache, 0, sizeof(uint32_t) * MODES_ICAO_CACHE_LEN * 2);

// 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

modesInitErrorInfo();

// Setup the uploader - read the user paramaters from the coaa.h header file

coaa1090.fUserLat = MODES_USER_LATITUDE_DFLT;

coaa1090.fUserLon = MODES_USER_LONGITUDE_DFLT;

strcpy(coaa1090.strAuthCode,STR(USER_AUTHCODE));

strcpy(coaa1090.strRegNo, STR(USER_REGNO));

strcpy(coaa1090.strVersion, MODES_DUMP1090_VERSION);

if ((iErr = initCOAA (coaa1090)))

{

fprintf(stderr, "Error 0x%X initialising uploader\n", iErr);

exit(1);

}

}

//

// ================================ Main ====================================

//

void showHelp(void) {

printf(

"-----------------------------------------------------------------------------\n"

"| ppup1090 RPi Uploader for COAA Planeplotter Ver : "MODES_DUMP1090_VERSION " |\n"

"-----------------------------------------------------------------------------\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"

"--quiet Disable output to stdout. Use for daemon applications\n"

"--help Show this help\n"

);

}

#ifdef _WIN32

void showCopyright(void) {

uint64_t llTime = time(NULL) + 1;

printf(

"-----------------------------------------------------------------------------\n"

"| ppup1090 RPi Uploader for COAA Planeplotter Ver : "MODES_DUMP1090_VERSION " |\n"

"-----------------------------------------------------------------------------\n"

"\n"

" Copyright (C) 2012 by Salvatore Sanfilippo <antirez@gmail.com>\n"

" Copyright (C) 2014 by Malcolm Robb <support@attavionics.com>\n"

"\n"

" All rights reserved.\n"

"\n"

" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"

" ""AS IS"" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"

" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"

" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"

" HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"

" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"

" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"

" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"

" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"

" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"

" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"

"\n"

" For further details refer to <https://github.com/MalcolmRobb/dump1090>\n"

"\n"

);

// delay for 1 second to give the user a chance to read the copyright

while (llTime >= time(NULL)) {}

}

#endif

//

//=========================================================================

//

int main(int argc, char **argv) {

int j, fd;

struct client *c;

// Set sane defaults

ppup1090InitConfig();

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) {

Modes.net_input_beast_port = atoi(argv[++j]);

} else if (!strcmp(argv[j],"--net-bo-ipaddr") && more) {

strcpy(ppup1090.net_input_beast_ipaddr, argv[++j]);

} else if (!strcmp(argv[j],"--quiet")) {

ppup1090.quiet = 1;

} 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();}

#endif

// Initialization

ppup1090Init();

// Try to connect to the selected ip address and port. We only support *ONE* input connection which we initiate.here.

if ((fd = anetTcpConnect(Modes.aneterr, ppup1090.net_input_beast_ipaddr, Modes.net_input_beast_port)) == ANET_ERR) {

fprintf(stderr, "Failed to connect to %s:%d\n", ppup1090.net_input_beast_ipaddr, Modes.net_input_beast_port);

exit(1);

}

//

// Setup a service callback client structure for a beast binary input (from dump1090)

// This is a bit dodgy under Windows. The fd parameter is a handle to the internet

// socket on which we are receiving data. Under Linux, these seem to start at 0 and

// count upwards. However, Windows uses "HANDLES" and these don't nececeriy start at 0.

// dump1090 limits fd to values less than 1024, and then uses the fd parameter to

// index into an array of clients. This is ok-ish if handles are allocated up from 0.

// However, there is no gaurantee that Windows will behave like this, and if Windows

// allocates a handle greater than 1024, then dump1090 won't like it. On my test machine,

// the first Windows handle is usually in the 0x54 (84 decimal) region.

c = (struct client *) malloc(sizeof(*c));

c->next = NULL;

c->buflen = 0;

c->fd =

c->service =

Modes.bis = fd;

Modes.clients = c;

// Keep going till the user does something that stops us

while (!Modes.exit) {

modesReadFromClient(c,"",decodeBinMessage);

interactiveRemoveStaleAircrafts();

postCOAA ();

}

// The user has stopped us, so close any socket we opened

if (fd != ANET_ERR)

{close(fd);}

closeCOAA ();

#ifndef _WIN32

pthread_exit(0);

#else

return (0);

#endif

}

//

//=========================================================================

//