static void corosync_blackbox_write_to_file (void) { char fname[PATH_MAX]; char fdata_fname[PATH_MAX]; char time_str[PATH_MAX]; struct tm cur_time_tm; time_t cur_time_t; ssize_t res; cur_time_t = time(NULL); localtime_r(&cur_time_t, &cur_time_tm); strftime(time_str, PATH_MAX, "%Y-%m-%dT%H:%M:%S", &cur_time_tm); snprintf(fname, PATH_MAX, "%s/fdata-%s-%lld", get_run_dir(), time_str, (long long int)getpid()); if ((res = qb_log_blackbox_write_to_file(fname)) < 0) { LOGSYS_PERROR(-res, LOGSYS_LEVEL_ERROR, "Can't store blackbox file"); } snprintf(fdata_fname, sizeof(fdata_fname), "%s/fdata", get_run_dir()); unlink(fdata_fname); if (symlink(fname, fdata_fname) == -1) { log_printf(LOGSYS_LEVEL_ERROR, "Can't create symlink to '%s' for corosync blackbox file '%s'", fname, fdata_fname); } }
static void corosync_ring_id_store ( const struct memb_ring_id *memb_ring_id, const struct totem_ip_address *addr) { char filename[PATH_MAX]; int fd; int res; snprintf (filename, sizeof(filename), "%s/ringid_%s", get_run_dir(), totemip_print (addr)); fd = open (filename, O_WRONLY, 0700); if (fd == -1) { fd = open (filename, O_CREAT|O_RDWR, 0700); } if (fd == -1) { LOGSYS_PERROR(errno, LOGSYS_LEVEL_ERROR, "Couldn't store new ring id %llx to stable storage", memb_ring_id->seq); corosync_exit_error (COROSYNC_DONE_STORE_RINGID); } log_printf (LOGSYS_LEVEL_DEBUG, "Storing new sequence id for ring %llx", memb_ring_id->seq); res = write (fd, &memb_ring_id->seq, sizeof(memb_ring_id->seq)); close (fd); if (res != sizeof(memb_ring_id->seq)) { LOGSYS_PERROR(errno, LOGSYS_LEVEL_ERROR, "Couldn't store new ring id %llx to stable storage", memb_ring_id->seq); corosync_exit_error (COROSYNC_DONE_STORE_RINGID); } }
static void corosync_ring_id_create_or_load ( struct memb_ring_id *memb_ring_id, const struct totem_ip_address *addr) { int fd; int res = 0; char filename[PATH_MAX]; snprintf (filename, sizeof(filename), "%s/ringid_%s", get_run_dir(), totemip_print (addr)); fd = open (filename, O_RDONLY, 0700); /* * If file can be opened and read, read the ring id */ if (fd != -1) { res = read (fd, &memb_ring_id->seq, sizeof (uint64_t)); close (fd); } /* * If file could not be opened or read, create a new ring id */ if ((fd == -1) || (res != sizeof (uint64_t))) { memb_ring_id->seq = 0; umask(0); fd = open (filename, O_CREAT|O_RDWR, 0700); if (fd != -1) { res = write (fd, &memb_ring_id->seq, sizeof (uint64_t)); close (fd); if (res == -1) { LOGSYS_PERROR (errno, LOGSYS_LEVEL_ERROR, "Couldn't write ringid file '%s'", filename); corosync_exit_error (COROSYNC_DONE_STORE_RINGID); } } else { LOGSYS_PERROR (errno, LOGSYS_LEVEL_ERROR, "Couldn't create ringid file '%s'", filename); corosync_exit_error (COROSYNC_DONE_STORE_RINGID); } } totemip_copy(&memb_ring_id->rep, addr); assert (!totemip_zero_check(&memb_ring_id->rep)); }
static void corosync_ring_id_create_or_load ( struct memb_ring_id *memb_ring_id, unsigned int nodeid) { int fd; int res = 0; char filename[PATH_MAX]; snprintf (filename, sizeof(filename), "%s/ringid_%u", get_run_dir(), nodeid); fd = open (filename, O_RDONLY, 0700); /* * If file can be opened and read, read the ring id */ if (fd != -1) { res = read (fd, &memb_ring_id->seq, sizeof (uint64_t)); close (fd); } /* * If file could not be opened or read, create a new ring id */ if ((fd == -1) || (res != sizeof (uint64_t))) { memb_ring_id->seq = 0; umask(0); fd = open (filename, O_CREAT|O_RDWR, 0700); if (fd != -1) { res = write (fd, &memb_ring_id->seq, sizeof (uint64_t)); close (fd); if (res == -1) { LOGSYS_PERROR (errno, LOGSYS_LEVEL_ERROR, "Couldn't write ringid file '%s'", filename); corosync_exit_error (COROSYNC_DONE_STORE_RINGID); } } else { LOGSYS_PERROR (errno, LOGSYS_LEVEL_ERROR, "Couldn't create ringid file '%s'", filename); corosync_exit_error (COROSYNC_DONE_STORE_RINGID); } } memb_ring_id->rep = nodeid; }
int main (int argc, char **argv, char **envp) { const char *error_string; struct totem_config totem_config; int res, ch; int background, setprio, testonly; struct stat stat_out; enum e_corosync_done flock_err; uint64_t totem_config_warnings; struct scheduler_pause_timeout_data scheduler_pause_timeout_data; /* default configuration */ background = 1; setprio = 1; testonly = 0; while ((ch = getopt (argc, argv, "fprtv")) != EOF) { switch (ch) { case 'f': background = 0; break; case 'p': setprio = 0; break; case 'r': setprio = 1; break; case 't': testonly = 1; break; case 'v': printf ("Corosync Cluster Engine, version '%s'\n", VERSION); printf ("Copyright (c) 2006-2009 Red Hat, Inc.\n"); logsys_system_fini(); return EXIT_SUCCESS; break; default: fprintf(stderr, \ "usage:\n"\ " -f : Start application in foreground.\n"\ " -p : Do not set process priority.\n"\ " -t : Test configuration and exit.\n"\ " -r : Set round robin realtime scheduling (default).\n"\ " -v : Display version and SVN revision of Corosync and exit.\n"); logsys_system_fini(); return EXIT_FAILURE; } } /* * Set round robin realtime scheduling with priority 99 * Lock all memory to avoid page faults which may interrupt * application healthchecking */ if (setprio) { corosync_setscheduler (); } corosync_mlockall (); /* * Other signals are registered later via qb_loop_signal_add */ (void)signal (SIGSEGV, sigsegv_handler); (void)signal (SIGABRT, sigabrt_handler); #if MSG_NOSIGNAL != 0 (void)signal (SIGPIPE, SIG_IGN); #endif if (icmap_init() != CS_OK) { log_printf (LOGSYS_LEVEL_ERROR, "Corosync Executive couldn't initialize configuration component."); corosync_exit_error (COROSYNC_DONE_ICMAP); } set_icmap_ro_keys_flag(); /* * Initialize the corosync_api_v1 definition */ api = apidef_get (); res = coroparse_configparse(icmap_get_global_map(), &error_string); if (res == -1) { log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string); corosync_exit_error (COROSYNC_DONE_MAINCONFIGREAD); } res = corosync_log_config_read (&error_string); if (res == -1) { /* * if we are here, we _must_ flush the logsys queue * and try to inform that we couldn't read the config. * this is a desperate attempt before certain death * and there is no guarantee that we can print to stderr * nor that logsys is sending the messages where we expect. */ log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string); fprintf(stderr, "%s", error_string); syslog (LOGSYS_LEVEL_ERROR, "%s", error_string); corosync_exit_error (COROSYNC_DONE_LOGCONFIGREAD); } if (!testonly) { log_printf (LOGSYS_LEVEL_NOTICE, "Corosync Cluster Engine ('%s'): started and ready to provide service.", VERSION); log_printf (LOGSYS_LEVEL_INFO, "Corosync built-in features:" PACKAGE_FEATURES ""); } /* * Make sure required directory is present */ res = stat (get_run_dir(), &stat_out); if ((res == -1) || (res == 0 && !S_ISDIR(stat_out.st_mode))) { log_printf (LOGSYS_LEVEL_ERROR, "Required directory not present %s. Please create it.", get_run_dir()); corosync_exit_error (COROSYNC_DONE_DIR_NOT_PRESENT); } res = chdir(get_run_dir()); if (res == -1) { log_printf (LOGSYS_LEVEL_ERROR, "Cannot chdir to run directory %s. " "Please make sure it has correct context and rights.", get_run_dir()); corosync_exit_error (COROSYNC_DONE_DIR_NOT_PRESENT); } res = totem_config_read (&totem_config, &error_string, &totem_config_warnings); if (res == -1) { log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string); corosync_exit_error (COROSYNC_DONE_MAINCONFIGREAD); } if (totem_config_warnings & TOTEM_CONFIG_WARNING_MEMBERS_IGNORED) { log_printf (LOGSYS_LEVEL_WARNING, "member section is used together with nodelist. Members ignored."); } if (totem_config_warnings & TOTEM_CONFIG_WARNING_MEMBERS_DEPRECATED) { log_printf (LOGSYS_LEVEL_WARNING, "member section is deprecated."); } if (totem_config_warnings & TOTEM_CONFIG_WARNING_TOTEM_NODEID_IGNORED) { log_printf (LOGSYS_LEVEL_WARNING, "nodeid appears both in totem section and nodelist. Nodelist one is used."); } if (totem_config_warnings != 0) { log_printf (LOGSYS_LEVEL_WARNING, "Please migrate config file to nodelist."); } res = totem_config_keyread (&totem_config, &error_string); if (res == -1) { log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string); corosync_exit_error (COROSYNC_DONE_MAINCONFIGREAD); } res = totem_config_validate (&totem_config, &error_string); if (res == -1) { log_printf (LOGSYS_LEVEL_ERROR, "%s", error_string); corosync_exit_error (COROSYNC_DONE_MAINCONFIGREAD); } if (testonly) { corosync_exit_error (COROSYNC_DONE_EXIT); } ip_version = totem_config.ip_version; totem_config.totem_memb_ring_id_create_or_load = corosync_ring_id_create_or_load; totem_config.totem_memb_ring_id_store = corosync_ring_id_store; totem_config.totem_logging_configuration = totem_logging_configuration; totem_config.totem_logging_configuration.log_subsys_id = _logsys_subsys_create("TOTEM", "totem," "totemmrp.c,totemrrp.c,totemip.c,totemconfig.c,totemcrypto.c,totemsrp.c," "totempg.c,totemiba.c,totemudp.c,totemudpu.c,totemnet.c"); totem_config.totem_logging_configuration.log_level_security = LOGSYS_LEVEL_WARNING; totem_config.totem_logging_configuration.log_level_error = LOGSYS_LEVEL_ERROR; totem_config.totem_logging_configuration.log_level_warning = LOGSYS_LEVEL_WARNING; totem_config.totem_logging_configuration.log_level_notice = LOGSYS_LEVEL_NOTICE; totem_config.totem_logging_configuration.log_level_debug = LOGSYS_LEVEL_DEBUG; totem_config.totem_logging_configuration.log_level_trace = LOGSYS_LEVEL_TRACE; totem_config.totem_logging_configuration.log_printf = _logsys_log_printf; logsys_config_apply(); /* * Now we are fully initialized. */ if (background) { corosync_tty_detach (); } corosync_poll_handle = qb_loop_create (); memset(&scheduler_pause_timeout_data, 0, sizeof(scheduler_pause_timeout_data)); scheduler_pause_timeout_data.totem_config = &totem_config; timer_function_scheduler_timeout (&scheduler_pause_timeout_data); qb_loop_signal_add(corosync_poll_handle, QB_LOOP_LOW, SIGUSR2, NULL, sig_diag_handler, NULL); qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH, SIGINT, NULL, sig_exit_handler, NULL); qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH, SIGSEGV, NULL, sig_segv_handler, NULL); qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH, SIGABRT, NULL, sig_abrt_handler, NULL); qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH, SIGQUIT, NULL, sig_exit_handler, NULL); qb_loop_signal_add(corosync_poll_handle, QB_LOOP_HIGH, SIGTERM, NULL, sig_exit_handler, NULL); if (logsys_thread_start() != 0) { log_printf (LOGSYS_LEVEL_ERROR, "Can't initialize log thread"); corosync_exit_error (COROSYNC_DONE_LOGCONFIGREAD); } if ((flock_err = corosync_flock (corosync_lock_file, getpid ())) != COROSYNC_DONE_EXIT) { corosync_exit_error (flock_err); } /* * if totempg_initialize doesn't have root priveleges, it cannot * bind to a specific interface. This only matters if * there is more then one interface in a system, so * in this case, only a warning is printed */ /* * Join multicast group and setup delivery * and configuration change functions */ totempg_initialize ( corosync_poll_handle, &totem_config); totempg_service_ready_register ( main_service_ready); totempg_groups_initialize ( &corosync_group_handle, deliver_fn, confchg_fn); totempg_groups_join ( corosync_group_handle, &corosync_group, 1); /* * Drop root privleges to user 'corosync' * TODO: Don't really need full root capabilities; * needed capabilities are: * CAP_NET_RAW (bindtodevice) * CAP_SYS_NICE (setscheduler) * CAP_IPC_LOCK (mlockall) */ priv_drop (); schedwrk_init ( serialize_lock, serialize_unlock); /* * Start main processing loop */ qb_loop_run (corosync_poll_handle); /* * Exit was requested */ totempg_finalize (); /* * free the loop resources */ qb_loop_destroy (corosync_poll_handle); /* * free up the icmap */ /* * Remove pid lock file */ unlink (corosync_lock_file); corosync_exit_error (COROSYNC_DONE_EXIT); return EXIT_SUCCESS; }