[gsm] Make LCR work with current Osmocom-BB.
[lcr.git] / main.c
diff --git a/main.c b/main.c
index 931ac2a..1aa2d8b 100644 (file)
--- a/main.c
+++ b/main.c
 \*****************************************************************************/ 
 
 #include "main.h"
+#include "config.h"
+#ifdef WITH_GSM_MS
+extern "C" {
+#include <osmocore/signal.h>
+}
+#endif
 
-MESSAGES
+//MESSAGES
 
-double now_d, last_d;
-time_t now;
-struct tm *now_tm;
 struct timeval now_tv;
 struct timezone now_tz;
 #define GET_NOW() \
        { \
                gettimeofday(&now_tv, &now_tz); \
                now_d = ((double)(now_tv.tv_usec))/1000000 + now_tv.tv_sec; \
-               now = now_tv.tv_sec; \
-               now_tm = localtime(&now); \
        }
 
-#ifdef SOCKET_MISDN
 FILE *debug_fp = NULL;
-#else
-int global_debug = 0;
-#endif
-int quit=0;
+int quit = 0;
 
 #if 0
 struct lcr_fdset lcr_fdset[FD_SETSIZE];
@@ -53,36 +50,28 @@ int classuse = 0;
 int fduse = 0;
 int fhuse = 0;
 
-char *debug_prefix = 0;
 int debug_count = 0;
 int last_debug = 0;
 int debug_newline = 1;
 int nooutput = 0;
 
-void debug_usleep(int msec, char *file, int line, int hour, int min, int sec)
+void debug(const char *function, int line, const char *prefix, char *buffer)
 {
-       usleep(msec);
-}
+       time_t now;
+       struct tm *now_tm;
 
-void debug(const char *function, int line, char *prefix, char *buffer)
-{
        /* if we have a new debug count, we add a mark */
-       if (last_debug != debug_count)
-       {
+       if (last_debug != debug_count) {
                last_debug = debug_count;
+               time(&now);
+               now_tm = localtime(&now);
                if (!nooutput)
                        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);
-#ifdef SOCKET_MISDN
                if (debug_fp)
                        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);
-#else
-               if (options.deb&DEBUG_LOG && global_debug)
-                       dprint(DBGM_MAN, 0, "--------------------- %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);
-#endif
        }
 
-       if (!nooutput)
-       {
+       if (!nooutput) {
                if (debug_newline)
                        printf("\033[32m%06d %s\033[37m%s", debug_count%1000000, prefix?prefix:"", prefix?" ":"");
                if (function)
@@ -91,26 +80,12 @@ void debug(const char *function, int line, char *prefix, char *buffer)
                        printf("%s", buffer);
        }
 
-#ifdef SOCKET_MISDN
-       if (debug_fp)
-#else
-       if (options.deb&DEBUG_LOG && global_debug)
-#endif
-       {
-               if (debug_newline)
-               {
+       if (debug_fp) {
+               if (debug_newline) {
                        if (function)
-#ifdef SOCKET_MISDN
                                fprintf(debug_fp, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
-#else
-                               dprint(DBGM_MAN, 0, "%s%s(in %s() line %d): %s", prefix?prefix:"", prefix?" ":"", function, line, buffer);
-#endif
                        else
-#ifdef SOCKET_MISDN
                                fprintf(debug_fp, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
-#else
-                               dprint(DBGM_MAN, 0, "%s%s: %s", prefix?prefix:"", prefix?" ":"", buffer);
-#endif
                }
        }
 
@@ -121,7 +96,7 @@ void debug(const char *function, int line, char *prefix, char *buffer)
 }
 
 
-void _printdebug(const char *function, int line, unsigned long mask, const char *fmt, ...)
+void _printdebug(const char *function, int line, unsigned int mask, const char *fmt, ...)
 {
        char buffer[4096];
        va_list args;
@@ -135,7 +110,7 @@ void _printdebug(const char *function, int line, unsigned long mask, const char
        buffer[sizeof(buffer)-1]=0;
        va_end(args);
 
-       debug(function, line, debug_prefix, buffer);
+       debug(function, line, "DEBUG", buffer);
 
        pthread_mutex_unlock(&mutexd);
 }
@@ -154,8 +129,7 @@ void _printerror(const char *function, int line, const char *fmt, ...)
 
        if (options.deb)
                debug(function, line, "ERROR", buffer);
-       else /* only if we do not debug */
-       {
+       else { /* only if we do not debug */
                if (function)
                        fprintf(stderr, "ERROR (in %s() line %d) %s", function, line, buffer);
                else
@@ -169,23 +143,31 @@ void _printerror(const char *function, int line, const char *fmt, ...)
 void sighandler(int sigset)
 {
        struct sched_param schedp;
+#ifdef WITH_GSM_MS
+       int wait_ms = 0;
+#endif
 
        if (sigset == SIGHUP)
                return;
        if (sigset == SIGPIPE)
                return;
-       if (!quit)
-       {
-               quit=1;
+       fprintf(stderr, "LCR: Signal received: %d\n", sigset);
+       PDEBUG(DEBUG_LOG, "Signal received: %d\n", sigset);
+#ifdef WITH_GSM_MS
+       if (!wait_ms) {
+               wait_ms = 1;
+               dispatch_signal(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL);
+               return;
+       }
+#endif
+       if (!quit) {
+               quit = sigset;
                /* set scheduler & priority */
-               if (options.schedule > 1)
-               {
+               if (options.schedule > 1) {
                        memset(&schedp, 0, sizeof(schedp));
                        schedp.sched_priority = 0;
                        sched_setscheduler(0, SCHED_OTHER, &schedp);
                }
-               fprintf(stderr, "LCR: Signal received: %d\n", sigset);
-               PERROR("Signal received: %d\n", sigset);
        }
 }
 
@@ -195,21 +177,20 @@ void sighandler(int sigset)
  */
 int main(int argc, char *argv[])
 {
+#if defined WITH_GSM_BS || defined WITH_GSM_MS
+       double                  now_d, last_d;
+       int                     all_idle;
+#endif
        int                     ret = -1;
        int                     lockfd = -1; /* file lock */
        struct lcr_msg          *message;
-       class Port              *port;
-       class Endpoint          *epoint;
-       class Join              *join;
        int                     i;
-       int                     all_idle;
-       char                    prefix_string[64];
        struct sched_param      schedp;
-       char                    *debug_prefix = "alloc";
        int                     created_mutexd = 0,/* created_mutext = 0,*/ created_mutexe = 0,
-                               created_lock = 0, created_signal = 0, created_debug = 0;
-       int                     idletime = 0, idlecheck = 0;
-       char                    tracetext[256];
+                               created_lock = 0, created_signal = 0, created_debug = 0,
+                               created_misdn = 0;
+       char                    tracetext[256], lock[128];
+       char                    options_error[256];
 
 #if 0
        /* init fdset */
@@ -219,15 +200,11 @@ int main(int argc, char *argv[])
        /* lock LCR process */
 //     pthread_mutex_lock(&mutex_lcr);
 
-       /* current time */
-       GET_NOW();
-
        /* show version */
        printf("\n** %s  Version %s\n\n", NAME, VERSION_STRING);
 
        /* show options */
-       if (argc <= 1)
-       {
+       if (argc <= 1) {
                usage:
                printf("\n");
                printf("Usage: lcr (query | start | fork | rules | route)\n");
@@ -246,44 +223,32 @@ int main(int argc, char *argv[])
        /* init crc */
        crc_init();
 
-       /* check for root (real or effective) */
-       if (getuid() && geteuid())
-       {
-               fprintf(stderr, "Please run %s as super-user.\n", NAME);
-               goto free;
-       }
-
        /* the mutex init */
-       if (pthread_mutex_init(&mutexd, NULL))
-       {
+       if (pthread_mutex_init(&mutexd, NULL)) {
                fprintf(stderr, "cannot create 'PDEBUG' mutex\n");
                goto free;
        }
        created_mutexd = 1;
-//     if (pthread_mutex_init(&mutext, NULL))
-//     {
+//     if (pthread_mutex_init(&mutext, NULL)) {
 //             fprintf(stderr, "cannot create 'trace' mutex\n");
 //             goto free;
 //     }
 //     created_mutext = 1;
-       if (pthread_mutex_init(&mutexe, NULL))
-       {
+       if (pthread_mutex_init(&mutexe, NULL)) {
                fprintf(stderr, "cannot create 'PERROR' mutex\n");
                goto free;
        }
        created_mutexe = 1;
 
        /* show interface */
-       if (!(strcasecmp(argv[1],"interface")))
-       {
+       if (!(strcasecmp(argv[1],"interface"))) {
                doc_interface();
                ret = 0;
                goto free;
        }
 
        /* show rules */
-       if (!(strcasecmp(argv[1],"rules")))
-       {
+       if (!(strcasecmp(argv[1],"rules"))) {
                if (argc <= 2)
                        doc_rules(NULL);
                else
@@ -293,20 +258,24 @@ int main(int argc, char *argv[])
        }
 
        /* query available isdn ports */
-       if (!(strcasecmp(argv[1],"query")))
-       {
-               mISDN_port_info();
+       if (!(strcasecmp(argv[1],"query"))) {
+               int rc;
+               fprintf(stderr, "-> Using 'misdn_info'\n");
+               rc = system("misdn_info");
                ret = 0;
                goto free;
        }
 
        /* read options */
-       if (read_options() == 0)
+       if (read_options(options_error) == 0) {
+               PERROR("%s", options_error);
                goto free;
+       }
 
        /* init mISDN */
        if (mISDN_initialize() < 0)
                goto free;
+       created_misdn = 1;
        created_debug = 1;
 
        /* read ruleset(s) */
@@ -315,8 +284,7 @@ int main(int argc, char *argv[])
 
        /* set pointer to main ruleset */
        ruleset_main = getrulesetbyname("main");
-       if (!ruleset_main)
-       {
+       if (!ruleset_main) {
                fprintf(stderr, "\n***\n -> Missing 'main' ruleset, causing ALL calls to be disconnected.\n***\n\n");
                PDEBUG(DEBUG_LOG, "Missing 'main' ruleset, causing ALL calls to be disconnected.\n");
                sleep(2);
@@ -324,8 +292,7 @@ int main(int argc, char *argv[])
 
 #if 0
        /* query available isdn ports */
-       if (!(strcasecmp(argv[1],"route")))
-       {
+       if (!(strcasecmp(argv[1],"route"))) {
                ruleset_debug(ruleset_first);
                ret = 0;
                goto free;
@@ -333,20 +300,18 @@ int main(int argc, char *argv[])
 #endif
 
        /* do fork in special cases */
-       if (!(strcasecmp(argv[1],"fork")))
-       {
+       if (!(strcasecmp(argv[1],"fork"))) {
                pid_t pid;
+               FILE *pidfile;
 
                /* do daemon fork */
                pid = fork();
 
-               if (pid < 0)
-               {
+               if (pid < 0) {
                        fprintf(stderr, "Cannot fork!\n");
                        goto free;
                }
-               if (pid != 0)
-               {
+               if (pid != 0) {
                        exit(0);
                }
                usleep(200000);
@@ -355,32 +320,36 @@ int main(int argc, char *argv[])
                /* do second fork */
                pid = fork();
 
-               if (pid < 0)
-               {
+               if (pid < 0) {
                        fprintf(stderr, "Cannot fork!\n");
                        goto free;
                }
-               if (pid != 0)
-               {
+               if (pid != 0) {
                        printf("LCR: Starting daemon.\n");
                        exit(0);
                }
                nooutput = 1;
+
+               /* write pid file */
+               pidfile = fopen("/var/run/lcr.pid","w");
+               if (pidfile) {
+                       fprintf(pidfile, "%d\n", getpid());
+                       fclose(pidfile);
+               }
        } else
        /* if not start */
-       if (!!strcasecmp(argv[1],"start"))
-       {
+       if (!!strcasecmp(argv[1],"start")) {
                goto usage;
        }
 
        /* create lock and lock! */
-       if ((lockfd = open("/var/run/lcr.lock", O_CREAT, 0)) < 0)
-       {
-               fprintf(stderr, "Cannot create lock file: /var/run/lcr.lock\n");
+       SPRINT(lock, "%s/lcr.lock", options.lock);
+       if ((lockfd = open(lock, O_CREAT | O_WRONLY, S_IWUSR)) < 0) {
+               fprintf(stderr, "Cannot create lock file: %s\n", lock);
+               fprintf(stderr, "Check options.conf to change to path with permissions for you.\n");
                goto free;
        }
-       if (flock(lockfd, LOCK_EX|LOCK_NB) < 0)
-       {
+       if (flock(lockfd, LOCK_EX|LOCK_NB) < 0) {
                if (errno == EWOULDBLOCK)
                        fprintf(stderr, "LCR: Another LCR process is running. Please kill the other one.\n");
                else    fprintf(stderr, "Locking process failed: errno=%d\n", errno);
@@ -389,8 +358,7 @@ int main(int argc, char *argv[])
        created_lock = 1;
 
        /* initialize admin socket */
-       if (admin_init())
-       {
+       if (admin_init()) {
                fprintf(stderr, "Unable to initialize admin socket.\n");
                goto free;
        }
@@ -398,16 +366,45 @@ int main(int argc, char *argv[])
        /* generate alaw / ulaw tables */
        generate_tables(options.law);
 
+#ifdef WITH_SS5
+       /* init ss5 sine tables */
+       ss5_sine_generate();
+       ss5_test_decode();
+#endif
+
        /* load tones (if requested) */
-       if (fetch_tones() == 0)
-       {
+       if (fetch_tones() == 0) {
                fprintf(stderr, "Unable to fetch tones into memory.\n");
                goto free;
        }
 
+#if defined WITH_GSM_BS || defined WITH_GSM_MS
+       /* init gsm */
+       if (options.gsm && gsm_init()) {
+               fprintf(stderr, "GSM initialization failed.\n");
+               goto free;
+       }
+#else
+       if (options.gsm) {
+               fprintf(stderr, "GSM is enabled, but not compiled. Use --with-gsm-bs or --with-gsm-ms while configure!\n");
+               goto free;
+       }
+#endif
+#ifdef WITH_GSM_BS
+       if (options.gsm && gsm_bs_init()) {
+               fprintf(stderr, "GSM BS initialization failed.\n");
+               goto free;
+       }
+#endif
+#ifdef WITH_GSM_MS
+       if (options.gsm && gsm_ms_init()) {
+               fprintf(stderr, "GSM MS initialization failed.\n");
+               goto free;
+       }
+#endif
+
        /* read interfaces and open ports */
-       if (!read_interfaces())
-       {
+       if (!read_interfaces()) {
                PERROR_RUNTIME("No interfaces specified or failed to parse interface.conf.\n");
                fprintf(stderr, "No interfaces specified or failed to parse interface.conf.\n");
                goto free;
@@ -418,40 +415,34 @@ int main(int argc, char *argv[])
        
        /* locking memory paging */
        i = 0;
-       while(i < 10)
-       {
+       while(i < 10) {
                if (mlockall(MCL_CURRENT | MCL_FUTURE) >= 0)
                        break;
                usleep(200000);
                i++;
        }
-       if (i == 10)
-       {
-               switch(errno)
-               {
+       if (i == 10) {
+               switch(errno) {
                        case ENOMEM:
-                       fprintf(stderr, "Not enough memory to lock paging, exitting...\n");
+                       fprintf(stderr, "Warning: Not enough memory to lock paging.\n");
                        break;
                        case EPERM:
-                       fprintf(stderr, "No permission to lock paging, exitting...\n");
+                       fprintf(stderr, "Warning: No permission to lock paging.\n");
                        break;
                        case EFAULT:
-                       fprintf(stderr, "'Bad address' while locking paging, exitting...\n");
+                       fprintf(stderr, "Warning: 'Bad address' while locking paging.\n");
                        break;
                        default:
-                       fprintf(stderr, "Unknown error %d while locking paging, exitting...\n", errno);
+                       fprintf(stderr, "Warning: Unknown error %d while locking paging.\n", errno);
                }
-               goto free;
        }
 
        /* set real time scheduler & priority */
-       if (options.schedule > 1)
-       {
+       if (options.schedule > 1) {
                memset(&schedp, 0, sizeof(schedp));
                schedp.sched_priority = options.schedule;
                ret = sched_setscheduler(0, SCHED_RR, &schedp);
-               if (ret < 0)
-               {
+               if (ret < 0) {
                        PERROR("Scheduling failed with given priority %d (errno = %d).\nCheck options.conf 'schedule', exitting...\n", options.schedule, errno);
                        goto free;
                }
@@ -464,219 +455,76 @@ int main(int argc, char *argv[])
        signal(SIGPIPE,sighandler);
        created_signal = 1;
 
+       /* init message */
+       init_message();
+
        /*** main loop ***/
        SPRINT(tracetext, "%s %s started, waiting for calls...", NAME, VERSION_STRING);
-       start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
+       start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
        printf("%s\n", tracetext);
        end_trace();
-       GET_NOW();
        quit = 0;
-       while(!quit)
-       {
-
+#if defined WITH_GSM_BS || defined WITH_GSM_MS
+       GET_NOW();
+#endif
+       while(!quit) {
+#if defined WITH_GSM_BS || defined WITH_GSM_MS
                last_d = now_d;
                GET_NOW();
-               if (now_d-last_d > 1.0)
-               {
+               if (now_d-last_d > 1.0) {
                        PERROR("LCR was stalling %d.%d seconds\n", ((int)((now_d-last_d)*10.0))/10, (int)((now_d-last_d)*10.0));
                }
                /* all loops must be counted from the beginning since nodes might get freed during handler */
                all_idle = 1;
 
-//#warning debugging usleep crash
-//             debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
-
-               /* handle mISDN messages from kernel */
-               debug_prefix = "ISDN";
-               if (mISDN_handler())
+               /* must be processed after all queues, so they are empty */
+               if (select_main(1, NULL, NULL, NULL))
                        all_idle = 0;
-//#warning debugging usleep crash
-//             debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
-
-BUDETECT
-
-               /* loop through all port ports and call their handler */
-               port_again:
-               port = port_first;
-               while(port)
-               {
-                       debug_prefix = port->p_name;
-                       debug_count++;
-                       ret = port->handler();
-                       if (ret)
+               /* handle gsm */
+               if (options.gsm) {
+                       if (handle_gsm())
                                all_idle = 0;
-                       if (ret < 0) /* port has been destroyed */
-                               goto port_again;
-                       port = port->next;
-               }
-
-               /* loop through all epoint and call their handler */
-               epoint_again:
-               epoint = epoint_first;
-               while(epoint)
-               {
-                       debug_prefix = prefix_string;
-                       SPRINT(prefix_string, "ep%ld", epoint->ep_serial);
-                       debug_count++;
-                       ret = epoint->handler();
-                       if (ret)
-                               all_idle = 0;
-                       if (ret < 0) /* epoint has been destroyed */
-                               goto epoint_again;
-                       epoint = epoint->next;
-               }
-
-               /* loop through all joins and call their handler */
-               join_again:
-               join = join_first;
-               while(join)
-               {
-                       debug_prefix = "join";
-                       debug_count++;
-                       ret = join->handler();
-                       if (ret)
+#ifdef WITH_GSM_MS
+                       if (handle_gsm_ms(&quit))
                                all_idle = 0;
-                       if (ret < 0) /* join has been destroyed */
-                               goto join_again;
-                       join = join->next;
-               }
-
-               debug_prefix = 0;
-
-               /* process any message */
-               debug_count++;
-               debug_prefix = "message";
-               while ((message = message_get()))
-               {
-                       all_idle = 0;
-                       switch(message->flow)
-                       {
-                               case PORT_TO_EPOINT:
-                               debug_prefix = "msg port->epoint";
-                               epoint = find_epoint_id(message->id_to);
-                               if (epoint)
-                               {
-                                       if (epoint->ep_app)
-                                       {
-                                               epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
-                                       } else
-                                       {
-                                               PDEBUG(DEBUG_MSG, "Warning: message %s from port %d to endpoint %d. endpoint doesn't have an application.\n", messages_txt[message->type], message->id_from, message->id_to);
-                                       }
-                               } else
-                               {
-                                       PDEBUG(DEBUG_MSG, "Warning: message %s from port %d to endpoint %d. endpoint doesn't exist anymore.\n", messages_txt[message->type], message->id_from, message->id_to);
-                               }
-                               break;
-
-                               case EPOINT_TO_JOIN:
-                               debug_prefix = "msg epoint->join";
-                               join = find_join_id(message->id_to);
-                               if (join)
-                               {
-                                       join->message_epoint(message->id_from, message->type, &message->param);
-                               } else
-                               {
-                                       PDEBUG(DEBUG_MSG, "Warning: message %s from endpoint %d to join %d. join doesn't exist anymore\n", messages_txt[message->type], message->id_from, message->id_to);
-                               }
-                               break;
-
-                               case JOIN_TO_EPOINT:
-                               debug_prefix = "msg join->epoint";
-                               epoint = find_epoint_id(message->id_to);
-                               if (epoint)
-                               {
-                                       if (epoint->ep_app)
-                                       {
-                                               epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
-                                       } else
-                                       {
-                                               PDEBUG(DEBUG_MSG, "Warning: message %s from join %d to endpoint %d. endpoint doesn't have an application.\n", messages_txt[message->type], message->id_from, message->id_to);
-                                       }
-                               } else
-                               {
-                                       PDEBUG(DEBUG_MSG, "Warning: message %s from join %d to endpoint %d. endpoint doesn't exist anymore.\n", messages_txt[message->type], message->id_from, message->id_to);
-                               }
-                               break;
-
-                               case EPOINT_TO_PORT:
-                               debug_prefix = "msg epoint->port";
-                               port = find_port_id(message->id_to);
-                               if (port)
-                               {
-                                       port->message_epoint(message->id_from, message->type, &message->param);
-BUDETECT
-                               } else
-                               {
-                                       PDEBUG(DEBUG_MSG, "Warning: message %s from endpoint %d to port %d. port doesn't exist anymore\n", messages_txt[message->type], message->id_from, message->id_to);
-                               }
-                               break;
-
-                               default:
-                               PERROR("Message flow %d unknown.\n", message->flow);
-                       }
-                       message_free(message);
-                       debug_count++;
-                       debug_prefix = "message";
-               }
-BUDETECT
-
-               /* handle socket */
-               if (admin_handle())
-                       all_idle = 0;
-BUDETECT
-
-#if 0
-               /* check for child to exit (eliminate zombies) */
-               if (waitpid(-1, NULL, WNOHANG) > 0)
-               {
-                       PDEBUG(DEBUG_EPOINT, "a child process (created by endpoint) has exitted.\n");
-                       all_idle = 0;
-               }
 #endif
-//#warning debugging usleep crash
-//             debug_usleep(1, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
-
-               /* do idle checking */
-               if (idlecheck != now)
-               {
-                       PDEBUG(DEBUG_IDLETIME, "Idle time : %d%%\n", idletime/10000);
-                       idletime = 0;
-                       idlecheck = now;
                }
-
-               /* did we do nothing? so we wait to give time to other processes */
-               if (all_idle)
-               {
-//                     pthread_mutex_unlock(&mutex_lcr); // unlock LCR
-                       debug_usleep(4000, __FILE__, __LINE__, now_tm->tm_hour, now_tm->tm_min, now_tm->tm_sec);
-//                     pthread_mutex_lock(&mutex_lcr); // lock LCR
-                       idletime += 4000;
+               if (all_idle) {
+                       usleep(10000);
                }
+#else
+               if (options.polling)
+                       if (!select_main(1, NULL, NULL, NULL))
+                               usleep(10000);
+               else
+                       select_main(0, NULL, NULL, NULL);
+#endif
        }
        SPRINT(tracetext, "%s terminated", NAME);
        printf("%s\n", tracetext);
-       start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext);
-       if (ret)
-               add_trace("error", NULL, "%d", ret);
+       start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext);
+       if (quit > 0)
+               add_trace((char *)"signal", NULL, "%d", quit);
+       if (quit < 0)
+               add_trace((char *)"errno", NULL, "%d", quit);
        end_trace();
        ret=0;
 
+       /* clean messacleane */
+       cleanup_message();
+
        /* free all */
 free:
 
-
        /* set scheduler & priority
         */
-       if (options.schedule > 1)
-       {
+       if (options.schedule > 1) {
                memset(&schedp, 0, sizeof(schedp));
                schedp.sched_priority = options.schedule;
                sched_setscheduler(0, SCHED_OTHER, &schedp);
        }
        /* reset signals */
-       if (created_signal)
-       {
+       if (created_signal) {
                signal(SIGINT,SIG_DFL);
                signal(SIGHUP,SIG_DFL);
                signal(SIGTERM,SIG_DFL);
@@ -684,15 +532,12 @@ free:
        }
 
        /* destroy objects */
-       debug_prefix = "free";
 
-       while(port_first)
-       {
+       while(port_first) {
                debug_count++;
                delete port_first;
        }
-       while(epoint_first)
-       {
+       while(epoint_first) {
                debug_count++;
                delete epoint_first;
        }
@@ -711,13 +556,11 @@ free:
        /* flush messages */
        debug_count++;
        i = 0;
-       while ((message = message_get()))
-       {
+       while ((message = message_get())) {
                i++;
                message_free(message);
        }
-       if (i)
-       {
+       if (i) {
                PDEBUG(DEBUG_MSG, "freed %d pending messages\n", i);
        }
 
@@ -731,8 +574,11 @@ free:
        /* close lock */
        if (created_lock)
                flock(lockfd, LOCK_UN);
-       if (lockfd >= 0)
+       if (lockfd >= 0) {
+               chmod(lock, 0700);
+               unlink(lock);
                close(lockfd);
+       }
 
        /* free rulesets */
        if (ruleset_first)
@@ -751,14 +597,31 @@ free:
                        fprintf(stderr, "cannot destroy 'PDEBUG' mutex\n");
 
        /* deinitialize mISDN */
-       mISDN_deinitialize();
+       if (created_misdn)
+               mISDN_deinitialize();
+
+       /* free gsm */
+       if (options.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
+       }
+
+       /* close loopback, if used by GSM or remote */
+       if (mISDNloop.sock > -1)
+               mISDNloop_close();
 
        /* display memory leak */
 #define MEMCHECK(a, b) \
-       if (b) \
-       { \
+       if (b) { \
                SPRINT(tracetext, a, NAME); \
-               start_trace(0, NULL, NULL, NULL, 0, 0, 0, tracetext); \
+               start_trace(-1, NULL, NULL, NULL, 0, 0, 0, tracetext); \
                if (ret) add_trace("blocks", NULL, "%d", b); \
                end_trace(); \
                printf("\n******************************\n\007"); \
@@ -785,62 +648,4 @@ free:
 }
 
 
-#ifdef BUDETECT_DEF
-/* special debug function to detect buffer overflow
- */
-int budetect_stop = 0;
-void budetect(const char *file, int line, char *function)
-{
-       if (budetect_stop)
-               return;
-       /* modify this function to detect race-bugs */
-#warning DID YOU MODIFY THIS FUNCTION TO DETECT THE BUFFER OVERFLOW BUG?
-       class Port *port;
-       class PmISDN *pmisdn;
-       struct mISDNport *mISDNport = mISDNport_first;
-       int i, ii;
-
-       while(mISDNport)
-       {
-               i = 0;
-               ii = mISDNport->b_num;
-               while(i < ii)
-               {
-                       if (mISDNport->b_port[i])
-                       {
-                               port = port_first;
-                               while(port)
-                               {
-                                       if ((port->p_type&PORT_CLASS_MASK) == PORT_CLASS_ISDN)
-                                       {
-                                               pmisdn = (class PmISDN *)port;
-                                               if (pmisdn->p_isdn_crypt_listen)
-                                               {
-                                                       PERROR_RUNTIME("************************************************\n");
-                                                       PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
-                                                       PERROR_RUNTIME("** p_isdn_crypt_listen = %d\n", pmisdn->p_isdn_crypt_listen);
-                                                       PERROR_RUNTIME("************************************************\n");
-                                                       budetect_stop = 1;
-                                               }
-                                       }
-                                       if (port == mISDNport->b_port[i])
-                                               break;
-                                       port = port->next;
-                                       if (!port)
-                                       {
-                                               PERROR_RUNTIME("************************************************\n");
-                                               PERROR_RUNTIME("** BUG detected in %s, line %d, function %s\n", file, line, function);
-                                               PERROR_RUNTIME("** b_port not in list.\n");
-                                               PERROR_RUNTIME("************************************************\n");
-                                               budetect_stop = 1;
-                                       }
-                               }
-                       }
-                       i++;
-               }
-               mISDNport = mISDNport->next;
-       }
-
-}
-#endif