static void _init_nm_debug (const char *debug) { const guint D_RLIMIT_CORE = 1; const guint D_FATAL_WARNINGS = 2; GDebugKey keys[] = { { "RLIMIT_CORE", D_RLIMIT_CORE }, { "fatal-warnings", D_FATAL_WARNINGS }, }; guint flags = 0; const char *env = getenv ("NM_DEBUG"); if (env && strcasecmp (env, "help") != 0) { /* g_parse_debug_string() prints options to stderr if the variable * is set to "help". Don't allow that. */ flags = g_parse_debug_string (env, keys, G_N_ELEMENTS (keys)); } if (debug && strcasecmp (debug, "help") != 0) flags |= g_parse_debug_string (debug, keys, G_N_ELEMENTS (keys)); if (NM_FLAGS_HAS (flags, D_RLIMIT_CORE)) { /* only enable this, if explicitly requested, because it might * expose sensitive data. */ struct rlimit limit = { .rlim_cur = RLIM_INFINITY, .rlim_max = RLIM_INFINITY, }; setrlimit (RLIMIT_CORE, &limit); } if (NM_FLAGS_HAS (flags, D_FATAL_WARNINGS)) _set_g_fatal_warnings (); }
static void _init_nm_debug (const char *debug) { const guint D_RLIMIT_CORE = 1; const guint D_FATAL_WARNINGS = 2; GDebugKey keys[] = { { "RLIMIT_CORE", D_RLIMIT_CORE }, { "fatal-warnings", D_FATAL_WARNINGS }, }; guint flags; const char *env = getenv ("NM_DEBUG"); flags = nm_utils_parse_debug_string (env, keys, G_N_ELEMENTS (keys)); flags |= nm_utils_parse_debug_string (debug, keys, G_N_ELEMENTS (keys)); if (NM_FLAGS_HAS (flags, D_RLIMIT_CORE)) { /* only enable this, if explicitly requested, because it might * expose sensitive data. */ struct rlimit limit = { .rlim_cur = RLIM_INFINITY, .rlim_max = RLIM_INFINITY, }; setrlimit (RLIMIT_CORE, &limit); } if (NM_FLAGS_HAS (flags, D_FATAL_WARNINGS)) _set_g_fatal_warnings (); }
/* * main * */ int main (int argc, char *argv[]) { gboolean wifi_enabled = TRUE, net_enabled = TRUE, wwan_enabled = TRUE; gboolean success = FALSE; NMConfig *config; GError *error = NULL; gboolean wrote_pidfile = FALSE; char *bad_domains = NULL; NMConfigCmdLineOptions *config_cli; nm_g_type_init (); /* Known to cause a possible deadlock upon GDBus initialization: * https://bugzilla.gnome.org/show_bug.cgi?id=674885 */ g_type_ensure (G_TYPE_SOCKET); g_type_ensure (G_TYPE_DBUS_CONNECTION); g_type_ensure (NM_TYPE_BUS_MANAGER); _nm_utils_is_manager_process = TRUE; main_loop = g_main_loop_new (NULL, FALSE); config_cli = nm_config_cmd_line_options_new (); do_early_setup (&argc, &argv, config_cli); if (global_opt.g_fatal_warnings) _set_g_fatal_warnings (); if (global_opt.show_version) { fprintf (stdout, NM_DIST_VERSION "\n"); exit (0); } nm_main_utils_ensure_root (); nm_main_utils_ensure_not_running_pidfile (global_opt.pidfile); /* Ensure state directory exists */ if (g_mkdir_with_parents (NMSTATEDIR, 0755) != 0) { fprintf (stderr, "Cannot create '%s': %s", NMSTATEDIR, strerror (errno)); exit (1); } nm_main_utils_ensure_rundir (); /* When running from the build directory, determine our build directory * base and set helper paths in the build tree */ if (global_opt.run_from_build_dir) { char *path, *slash; int g; /* exe is <basedir>/src/.libs/lt-NetworkManager, so chop off * the last three components */ path = realpath ("/proc/self/exe", NULL); g_assert (path != NULL); for (g = 0; g < 3; ++g) { slash = strrchr (path, '/'); g_assert (slash != NULL); *slash = '\0'; } /* don't free these strings, we need them for the entire * process lifetime */ nm_dhcp_helper_path = g_strdup_printf ("%s/src/dhcp-manager/nm-dhcp-helper", path); g_free (path); } if (!nm_logging_setup (global_opt.opt_log_level, global_opt.opt_log_domains, &bad_domains, &error)) { fprintf (stderr, _("%s. Please use --help to see a list of valid options.\n"), error->message); exit (1); } else if (bad_domains) { fprintf (stderr, _("Ignoring unrecognized log domain(s) '%s' passed on command line.\n"), bad_domains); g_clear_pointer (&bad_domains, g_free); } /* Read the config file and CLI overrides */ config = nm_config_setup (config_cli, NULL, &error); nm_config_cmd_line_options_free (config_cli); config_cli = NULL; if (config == NULL) { fprintf (stderr, _("Failed to read configuration: (%d) %s\n"), error ? error->code : -1, (error && error->message) ? error->message : _("unknown")); exit (1); } _init_nm_debug (nm_config_get_debug (config)); /* Initialize logging from config file *only* if not explicitly * specified by commandline. */ if (global_opt.opt_log_level == NULL && global_opt.opt_log_domains == NULL) { if (!nm_logging_setup (nm_config_get_log_level (config), nm_config_get_log_domains (config), &bad_domains, &error)) { fprintf (stderr, _("Error in configuration file: %s.\n"), error->message); exit (1); } else if (bad_domains) { fprintf (stderr, _("Ignoring unrecognized log domain(s) '%s' from config files.\n"), bad_domains); g_clear_pointer (&bad_domains, g_free); } } if (global_opt.become_daemon && !nm_config_get_is_debug (config)) { if (daemon (0, 0) < 0) { int saved_errno; saved_errno = errno; fprintf (stderr, _("Could not daemonize: %s [error %u]\n"), g_strerror (saved_errno), saved_errno); exit (1); } wrote_pidfile = nm_main_utils_write_pidfile (global_opt.pidfile); } /* Set up unix signal handling - before creating threads, but after daemonizing! */ nm_main_utils_setup_signals (main_loop); nm_logging_syslog_openlog (nm_config_get_is_debug (config) ? "debug" : nm_config_data_get_value_cached (NM_CONFIG_GET_DATA_ORIG, NM_CONFIG_KEYFILE_GROUP_LOGGING, NM_CONFIG_KEYFILE_KEY_LOGGING_BACKEND, NM_CONFIG_GET_VALUE_STRIP | NM_CONFIG_GET_VALUE_NO_EMPTY)); nm_log_info (LOGD_CORE, "NetworkManager (version " NM_DIST_VERSION ") is starting..."); /* Parse the state file */ if (!parse_state_file (global_opt.state_file, &net_enabled, &wifi_enabled, &wwan_enabled, &error)) { nm_log_err (LOGD_CORE, "State file %s parsing failed: (%d) %s", global_opt.state_file, error ? error->code : -1, (error && error->message) ? error->message : _("unknown")); /* Not a hard failure */ } g_clear_error (&error); nm_log_info (LOGD_CORE, "Read config: %s", nm_config_data_get_config_description (nm_config_get_data (config))); nm_config_data_log (nm_config_get_data (config), "CONFIG: "); nm_log_dbg (LOGD_CORE, "WEXT support is %s", #if HAVE_WEXT "enabled" #else "disabled" #endif ); nm_auth_manager_setup (nm_config_get_auth_polkit (config)); nm_manager_setup (global_opt.state_file, net_enabled, wifi_enabled, wwan_enabled); if (!nm_bus_manager_get_connection (nm_bus_manager_get ())) { nm_log_warn (LOGD_CORE, "Failed to connect to D-Bus; only private bus is available"); } else { /* Start our DBus service */ if (!nm_bus_manager_start_service (nm_bus_manager_get ())) { nm_log_err (LOGD_CORE, "failed to start the dbus service."); goto done; } } /* Set up platform interaction layer */ nm_linux_platform_setup (); NM_UTILS_KEEP_ALIVE (config, NM_PLATFORM_GET, "NMConfig-depends-on-NMPlatform"); nm_dispatcher_init (); g_signal_connect (nm_manager_get (), NM_MANAGER_CONFIGURE_QUIT, G_CALLBACK (manager_configure_quit), config); if (!nm_manager_start (nm_manager_get (), &error)) { nm_log_err (LOGD_CORE, "failed to initialize: %s", error->message); goto done; } /* Make sure the loopback interface is up. If interface is down, we bring * it up and kernel will assign it link-local IPv4 and IPv6 addresses. If * it was already up, we assume is in clean state. * * TODO: it might be desirable to check the list of addresses and compare * it with a list of expected addresses (one of the protocol families * could be disabled). The 'lo' interface is sometimes used for assigning * global addresses so their availability doesn't depend on the state of * physical interfaces. */ nm_log_dbg (LOGD_CORE, "setting up local loopback"); nm_platform_link_set_up (NM_PLATFORM_GET, 1, NULL); success = TRUE; if (configure_and_quit == FALSE) g_main_loop_run (main_loop); nm_manager_stop (nm_manager_get ()); done: if (global_opt.pidfile && wrote_pidfile) unlink (global_opt.pidfile); nm_log_info (LOGD_CORE, "exiting (%s)", success ? "success" : "error"); exit (success ? 0 : 1); }