665 lines
15 KiB
C
665 lines
15 KiB
C
/*****************************************************************************\
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** **
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** Linux Call Router **
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** **
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**---------------------------------------------------------------------------**
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** Copyright: Andreas Eversberg **
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** **
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** Main function **
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** **
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\*****************************************************************************/
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#include "main.h"
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#ifdef PACKAGE_VERSION
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#undef PACKAGE_VERSION
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#endif
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#include "config.h"
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//MESSAGES
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struct timeval now_tv;
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struct timezone now_tz;
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#define GET_NOW() \
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{ \
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gettimeofday(&now_tv, &now_tz); \
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now_d = ((double)(now_tv.tv_usec))/1000000 + now_tv.tv_sec; \
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}
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FILE *debug_fp = NULL;
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int quit = 0;
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#if 0
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struct lcr_fdset lcr_fdset[FD_SETSIZE];
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#endif
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pthread_mutex_t mutexd; // debug output mutex
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pthread_mutex_t mutext; // trace output mutex
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pthread_mutex_t mutexe; // error output mutex
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//pthread_mutex_t mutex_lcr; // lcr process mutex
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int memuse = 0;
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int mmemuse = 0;
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int cmemuse = 0;
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int ememuse = 0;
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int pmemuse = 0;
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int amemuse = 0;
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int rmemuse = 0;
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int classuse = 0;
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int fduse = 0;
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int fhuse = 0;
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int debug_count = 0;
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int last_debug = 0;
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int debug_newline = 1;
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int nooutput = 0;
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void debug(const char *file, const char *function, int line, const char *prefix, char *buffer)
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{
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time_t now;
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struct tm *now_tm;
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/* if we have a new debug count, we add a mark */
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if (last_debug != debug_count) {
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last_debug = debug_count;
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time(&now);
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now_tm = localtime(&now);
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if (!nooutput)
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printf("\033[34m--------------------- %04d.%02d.%02d %02d:%02d:%02d %06d\033[36m\n", now_tm->tm_year+1900, now_tm->tm_mon+1, now_tm->tm_mday, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec, debug_count%1000000);
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if (debug_fp)
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fprintf(debug_fp, "--------------------- %04d.%02d.%02d %02d:%02d:%02d %06d\n", now_tm->tm_year+1900, now_tm->tm_mon+1, now_tm->tm_mday, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec, debug_count%1000000);
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}
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if (!nooutput) {
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if (debug_newline)
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printf("\033[32m%06d %s\033[37m%s", debug_count%1000000, prefix?prefix:"", prefix?" ":"");
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if (function)
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printf("(in %s/%s() line %d): %s", file, function, line, buffer);
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else
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printf("%s", buffer);
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}
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if (debug_fp) {
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if (debug_newline) {
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if (function)
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fprintf(debug_fp, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
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else
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fprintf(debug_fp, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
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fflush(debug_fp);
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}
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}
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debug_newline = 0;
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if (buffer[0])
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if (buffer[strlen(buffer)-1] == '\n')
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debug_newline = 1;
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}
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void _printdebug(const char *file, const char *function, int line, unsigned int mask, const char *fmt, ...)
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{
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char buffer[4096];
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va_list args;
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if (!(options.deb & mask))
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return;
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pthread_mutex_lock(&mutexd);
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va_start(args,fmt);
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VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
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buffer[sizeof(buffer)-1]=0;
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va_end(args);
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debug(file, function, line, "DEBUG", buffer);
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pthread_mutex_unlock(&mutexd);
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}
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void _printerror(const char *file, const char *function, int line, const char *fmt, ...)
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{
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char buffer[4096];
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va_list args;
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pthread_mutex_lock(&mutexe);
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va_start(args,fmt);
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VUNPRINT(buffer,sizeof(buffer)-1,fmt,args);
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buffer[sizeof(buffer)-1]=0;
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va_end(args);
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if (options.deb)
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debug(file, function, line, "ERROR", buffer);
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else { /* only if we do not debug */
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if (function)
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fprintf(stderr, "ERROR (in %s() line %d) %s", function, line, buffer);
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else
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fprintf(stderr, "ERROR %s", buffer);
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}
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pthread_mutex_unlock(&mutexe);
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}
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void sighandler(int sigset)
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{
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struct sched_param schedp;
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if (sigset == SIGHUP)
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return;
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if (sigset == SIGPIPE)
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return;
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fprintf(stderr, "LCR: Signal received: %d\n", sigset);
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PDEBUG(DEBUG_LOG, "Signal received: %d\n", sigset);
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/* reset signals */
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signal(SIGINT,SIG_DFL);
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signal(SIGHUP,SIG_DFL);
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signal(SIGTERM,SIG_DFL);
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signal(SIGPIPE,SIG_DFL);
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if (!quit) {
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quit = sigset;
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/* set scheduler & priority */
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if (options.schedule > 1) {
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memset(&schedp, 0, sizeof(schedp));
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schedp.sched_priority = 0;
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sched_setscheduler(0, SCHED_OTHER, &schedp);
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}
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}
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}
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/*
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* the main
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*/
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int main(int argc, char *argv[])
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{
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#if 0
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double now_d, last_d;
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int all_idle;
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#endif
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int ret = -1;
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int lockfd = -1; /* file lock */
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struct lcr_msg *message;
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int i;
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struct sched_param schedp;
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int created_mutexd = 0,/* created_mutext = 0,*/ created_mutexe = 0,
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created_lock = 0, created_signal = 0, created_message = 0;
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#ifdef WITH_MISDN
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int created_misdn = 0;
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#endif
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char tracetext[256], lock[128];
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char options_error[256];
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#if 0
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/* init fdset */
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memset(lcr_fdset, 0, sizeof(lcr_fdset));
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#endif
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/* lock LCR process */
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// pthread_mutex_lock(&mutex_lcr);
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/* show version */
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printf("\n** %s Version %s\n\n", NAME, VERSION_STRING);
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/* show options */
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if (argc <= 1) {
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usage:
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printf("\n");
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printf("Usage: lcr (query | start | fork | rules | route)\n");
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printf("query = Show available isdn ports.\n");
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printf("start = Run lcr normally, abort with CTRL+C.\n");
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printf("fork = Do daemon fork and run as background process.\n");
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printf("interface = Get help of available interface syntax.\n");
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printf("rules = Get help of available routing rule syntax.\n");
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printf("rules [action] = Get individual help for given action.\n");
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// printf("route = Show current routing as it is parsed.\n");
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printf("\n");
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ret = 999;
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goto free;
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}
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#ifdef WITH_CRYPT
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/* init crc */
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crc_init();
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#endif
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#ifdef WITH_VOOTP
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/* init VoOTP */
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vootp_init(stderr);
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vootp_loglevel(VOOTP_LOGL_INFO);
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#endif
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/* the mutex init */
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if (pthread_mutex_init(&mutexd, NULL)) {
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fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
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goto free;
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}
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created_mutexd = 1;
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// if (pthread_mutex_init(&mutext, NULL)) {
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// fprintf(stderr, "cannot create 'trace' mutex\n");
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// goto free;
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// }
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// created_mutext = 1;
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if (pthread_mutex_init(&mutexe, NULL)) {
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fprintf(stderr, "cannot create 'PERROR' mutex\n");
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goto free;
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}
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created_mutexe = 1;
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/* show interface */
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if (!(strcasecmp(argv[1],"interface"))) {
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doc_interface();
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ret = 0;
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goto free;
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}
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/* show rules */
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if (!(strcasecmp(argv[1],"rules"))) {
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if (argc <= 2)
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doc_rules(NULL);
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else
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doc_rules(argv[2]);
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ret = 0;
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goto free;
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}
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/* query available isdn ports */
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if (!(strcasecmp(argv[1],"query"))) {
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int __attribute__((__unused__)) rc;
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fprintf(stderr, "-> Using 'misdn_info'\n");
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rc = system("misdn_info");
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ret = 0;
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goto free;
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}
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/* read options */
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if (read_options(options_error) == 0) {
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PERROR("%s", options_error);
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goto free;
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}
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#ifdef WITH_MISDN
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/* init mISDN */
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if (mISDN_initialize() < 0)
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goto free;
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created_misdn = 1;
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#endif
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/* read ruleset(s) */
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if (!(ruleset_first = ruleset_parse()))
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goto free;
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/* set pointer to main ruleset */
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ruleset_main = getrulesetbyname("main");
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if (!ruleset_main) {
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fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
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PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
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sleep(2);
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}
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#if 0
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/* query available isdn ports */
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if (!(strcasecmp(argv[1],"route"))) {
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ruleset_debug(ruleset_first);
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ret = 0;
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goto free;
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}
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#endif
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/* do fork in special cases */
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if (!(strcasecmp(argv[1],"fork"))) {
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pid_t pid;
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FILE *pidfile;
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/* do daemon fork */
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pid = fork();
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if (pid < 0) {
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fprintf(stderr, "Cannot fork!\n");
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goto free;
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}
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if (pid != 0) {
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exit(0);
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}
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usleep(200000);
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printf("\n");
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/* do second fork */
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pid = fork();
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if (pid < 0) {
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fprintf(stderr, "Cannot fork!\n");
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goto free;
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}
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if (pid != 0) {
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printf("LCR: Starting daemon.\n");
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exit(0);
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}
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nooutput = 1;
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/* write pid file */
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SPRINT(lock, "%s/lcr.pid", options.lock);
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pidfile = fopen(lock,"w");
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if (pidfile) {
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fprintf(pidfile, "%d\n", getpid());
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fclose(pidfile);
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} else
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fprintf(stderr, "Failed to create PID file: %s\n", lock);
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} else
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/* if not start */
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if (!!strcasecmp(argv[1],"start")) {
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goto usage;
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}
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/* create lock and lock! */
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SPRINT(lock, "%s/lcr.lock", options.lock);
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if ((lockfd = open(lock, O_CREAT | O_WRONLY, S_IWUSR)) < 0) {
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fprintf(stderr, "Cannot create lock file: %s\n", lock);
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fprintf(stderr, "Check options.conf to change to path with permissions for you.\n");
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goto free;
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}
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if (flock(lockfd, LOCK_EX|LOCK_NB) < 0) {
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if (errno == EWOULDBLOCK)
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fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
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else fprintf(stderr, "Locking process failed: errno=%d\n", errno);
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goto free;
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}
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created_lock = 1;
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/* initialize admin socket */
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if (admin_init()) {
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fprintf(stderr, "Unable to initialize admin socket.\n");
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goto free;
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}
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/* generate alaw / ulaw tables */
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generate_tables(options.law);
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#ifdef WITH_SIP
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/* init SIP globals */
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sip_init();
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#endif
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#ifdef WITH_SS5
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/* init ss5 sine tables */
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ss5_sine_generate();
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ss5_test_decode();
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#endif
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/* load tones (if requested) */
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if (fetch_tones() == 0) {
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fprintf(stderr, "Unable to fetch tones into memory.\n");
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goto free;
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}
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#if defined WITH_GSM_BS || defined WITH_GSM_MS
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/* init gsm */
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if (gsm_init()) {
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fprintf(stderr, "GSM initialization failed.\n");
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goto free;
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}
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#endif
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#ifdef WITH_GSM_BS
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if (gsm_bs_init()) {
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fprintf(stderr, "GSM BS initialization failed.\n");
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goto free;
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}
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#endif
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#ifdef WITH_GSM_MS
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if (gsm_ms_init()) {
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fprintf(stderr, "GSM MS initialization failed.\n");
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goto free;
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}
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#endif
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/* read interfaces and open ports */
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if (!read_interfaces()) {
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PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
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fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
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goto free;
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}
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relink_interfaces();
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interface_first = interface_newlist;
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interface_newlist = NULL;
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/* locking memory paging */
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i = 0;
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while(i < 10) {
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if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
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break;
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usleep(200000);
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i++;
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}
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if (i == 10) {
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switch(errno) {
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case ENOMEM:
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fprintf(stderr, "Warning: Not enough memory to lock paging.\n");
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break;
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case EPERM:
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fprintf(stderr, "Warning: No permission to lock paging.\n");
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break;
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case EFAULT:
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fprintf(stderr, "Warning: 'Bad address' while locking paging.\n");
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break;
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default:
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fprintf(stderr, "Warning: Unknown error %d while locking paging.\n", errno);
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}
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}
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/* set real time scheduler & priority */
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if (options.schedule > 1) {
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memset(&schedp, 0, sizeof(schedp));
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schedp.sched_priority = options.schedule;
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ret = sched_setscheduler(0, SCHED_RR, &schedp);
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if (ret < 0) {
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PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
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goto free;
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}
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}
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/* signal handlers */
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signal(SIGINT,sighandler);
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signal(SIGHUP,sighandler);
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signal(SIGTERM,sighandler);
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signal(SIGPIPE,sighandler);
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created_signal = 1;
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/* init message */
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init_message();
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created_message = 1;
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/*** main loop ***/
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SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
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start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
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printf("%s\n", tracetext);
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end_trace();
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quit = 0;
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#if 0
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GET_NOW();
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#endif
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while(!quit) {
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#if 0
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last_d = now_d;
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GET_NOW();
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if (now_d-last_d > 1.0) {
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PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
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}
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/* all loops must be counted from the beginning since nodes might get freed during handler */
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all_idle = 1;
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/* must be processed after all queues, so they are empty */
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if (select_main(1, NULL, NULL, NULL))
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all_idle = 0;
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if (all_idle) {
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usleep(10000);
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}
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#else
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#ifdef WITH_SIP
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if (options.polling || any_sip_interface) {
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#else
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if (options.polling) {
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#endif
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if (!select_main(1, NULL, NULL, NULL)) {
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#ifdef WITH_SIP
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/* FIXME: check if work was done */
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sip_handle();
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#endif
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usleep(10000);
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}
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} else
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select_main(0, NULL, NULL, NULL);
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#endif
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}
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SPRINT(tracetext, "%s terminated", NAME);
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printf("%s\n", tracetext);
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start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
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if (quit > 0)
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add_trace((char *)"signal", NULL, "%d", quit);
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if (quit < 0)
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add_trace((char *)"errno", NULL, "%d", quit);
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end_trace();
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ret=0;
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/* free all */
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free:
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/* set scheduler & priority
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*/
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if (options.schedule > 1) {
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memset(&schedp, 0, sizeof(schedp));
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schedp.sched_priority = options.schedule;
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sched_setscheduler(0, SCHED_OTHER, &schedp);
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}
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/* reset signals */
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if (created_signal) {
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signal(SIGINT,SIG_DFL);
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signal(SIGHUP,SIG_DFL);
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signal(SIGTERM,SIG_DFL);
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signal(SIGPIPE,SIG_DFL);
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}
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/* destroy objects */
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while(port_first) {
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debug_count++;
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delete port_first;
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}
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while(epoint_first) {
|
|
debug_count++;
|
|
delete epoint_first;
|
|
}
|
|
epoint_first = NULL;
|
|
debug_count++;
|
|
join_free();
|
|
|
|
#ifdef WITH_MISDN
|
|
/* close isdn ports */
|
|
mISDNport_close_all();
|
|
#endif
|
|
|
|
/* free interfaces */
|
|
if (interface_first)
|
|
free_interfaces(interface_first);
|
|
interface_first = NULL;
|
|
|
|
/* flush messages */
|
|
debug_count++;
|
|
i = 0;
|
|
while ((message = message_get())) {
|
|
i++;
|
|
message_free(message);
|
|
}
|
|
if (i) {
|
|
PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
|
|
}
|
|
|
|
/* clean messages */
|
|
if (created_message)
|
|
cleanup_message();
|
|
|
|
/* free tones */
|
|
if (toneset_first)
|
|
free_tones();
|
|
|
|
/* free admin socket */
|
|
admin_cleanup();
|
|
|
|
/* close lock */
|
|
if (created_lock)
|
|
flock(lockfd, LOCK_UN);
|
|
if (lockfd >= 0) {
|
|
if (created_lock) {
|
|
chmod(lock, 0700);
|
|
unlink(lock);
|
|
}
|
|
close(lockfd);
|
|
}
|
|
|
|
/* free rulesets */
|
|
if (ruleset_first)
|
|
ruleset_free(ruleset_first);
|
|
ruleset_first = NULL;
|
|
|
|
/* free mutex */
|
|
if (created_mutexe)
|
|
if (pthread_mutex_destroy(&mutexe))
|
|
fprintf(stderr, "cannot destroy 'PERROR' mutex\n");
|
|
// if (created_mutext)
|
|
// if (pthread_mutex_destroy(&mutext))
|
|
// fprintf(stderr, "cannot destroy 'trace' mutex\n");
|
|
if (created_mutexd)
|
|
if (pthread_mutex_destroy(&mutexd))
|
|
fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
|
|
|
|
#ifdef WITH_MISDN
|
|
/* deinitialize mISDN */
|
|
if (created_misdn)
|
|
mISDN_deinitialize();
|
|
#endif
|
|
|
|
/* free gsm */
|
|
#ifdef WITH_GSM_BS
|
|
gsm_bs_exit(0);
|
|
#endif
|
|
#ifdef WITH_GSM_MS
|
|
gsm_ms_exit(0);
|
|
#endif
|
|
#if defined WITH_GSM_BS || defined WITH_GSM_MS
|
|
gsm_exit(0);
|
|
#endif
|
|
|
|
#ifdef WITH_SIP
|
|
/* cleanup SIP globals */
|
|
sip_exit();
|
|
#endif
|
|
|
|
/* display memory leak */
|
|
#define MEMCHECK(a, b) \
|
|
if (b) { \
|
|
SPRINT(tracetext, a, NAME); \
|
|
start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext); \
|
|
if (ret) add_trace("blocks", NULL, "%d", b); \
|
|
end_trace(); \
|
|
printf("\n******************************\n\007"); \
|
|
printf("\nERROR: %d %s\n", b, a); \
|
|
printf("\n******************************\n"); \
|
|
ret = -1; \
|
|
}
|
|
MEMCHECK("",memuse)
|
|
MEMCHECK("memory block(s) left (port.cpp ...)",pmemuse)
|
|
MEMCHECK("memory block(s) left (epoint*.cpp ...)",ememuse)
|
|
MEMCHECK("memory block(s) left (join*.cpp)",cmemuse)
|
|
MEMCHECK("memory block(s) left (message.c)",mmemuse)
|
|
MEMCHECK("memory block(s) left (route.c)",rmemuse)
|
|
MEMCHECK("memory block(s) left (args)",amemuse)
|
|
MEMCHECK("class(es) left",classuse)
|
|
MEMCHECK("file descriptor(s) left",fduse)
|
|
MEMCHECK("file handler(s) left",fhuse)
|
|
|
|
/* unlock LCR process */
|
|
// pthread_mutex_unlock(&mutex_lcr);
|
|
|
|
/* take me out */
|
|
return(ret);
|
|
}
|
|
|
|
|
|
|