/*
* main
*
*/
int
main (int argc, char *argv[])
{
GOptionContext *opt_ctx = NULL;
gboolean become_daemon = FALSE;
gboolean g_fatal_warnings = FALSE;
char *pidfile = NULL, *state_file = NULL, *dhcp = NULL;
char *config = NULL, *plugins = NULL, *conf_plugins = NULL;
char *log_level = NULL, *log_domains = NULL;
char **dns = NULL;
gboolean success;
BMPolicy *policy = NULL;
BMDBusManager *dbus_mgr = NULL;
GError *error = NULL;
gboolean wrote_pidfile = FALSE;
char *cfg_log_level = NULL, *cfg_log_domains = NULL;
GOptionEntry options[] = {
{ "no-daemon", 0, 0, G_OPTION_ARG_NONE, &become_daemon, "Don't become a daemon", NULL },
{ "g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &g_fatal_warnings, "Make all warnings fatal", NULL },
{ "pid-file", 0, 0, G_OPTION_ARG_FILENAME, &pidfile, "Specify the location of a PID file", "filename" },
{ "state-file", 0, 0, G_OPTION_ARG_FILENAME, &state_file, "State file location", "/path/to/state.file" },
{ "config", 0, 0, G_OPTION_ARG_FILENAME, &config, "Config file location", "/path/to/config.file" },
{ "plugins", 0, 0, G_OPTION_ARG_STRING, &plugins, "List of plugins separated by ','", "plugin1,plugin2" },
{ "log-level", 0, 0, G_OPTION_ARG_STRING, &log_level, "Log level: one of [ERR, WARN, INFO, DEBUG]", "INFO" },
{ "log-domains", 0, 0, G_OPTION_ARG_STRING, &log_domains,
"Log domains separated by ',': any combination of [NONE,HW,BT,USER_SET,SYS_SET,SUSPEND,CORE,DEVICE]",
"HW" },
{NULL}
};
if (getuid () != 0) {
fprintf (stderr, "You must be root to run BarcodeManager!\n");
exit (1);
}
if (!g_module_supported ()) {
fprintf (stderr, "GModules are not supported on your platform!\n");
exit (1);
}
bindtextdomain (GETTEXT_PACKAGE, BMLOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
/* Parse options */
opt_ctx = g_option_context_new ("");
g_option_context_set_translation_domain (opt_ctx, "UTF-8");
g_option_context_set_ignore_unknown_options (opt_ctx, FALSE);
g_option_context_set_help_enabled (opt_ctx, TRUE);
g_option_context_add_main_entries (opt_ctx, options, NULL);
g_option_context_set_summary (opt_ctx,
"BarcodeManager monitors all barcode scanners automatically.");
success = g_option_context_parse (opt_ctx, &argc, &argv, NULL);
g_option_context_free (opt_ctx);
if (!success) {
fprintf (stderr, _("Invalid option. Please use --help to see a list of valid options.\n"));
exit (1);
}
/* Make GIO ignore the remote VFS service; otherwise it tries to use the
* session bus to contact the remote service, and NM shouldn't ever be
* talking on the session bus. See rh #588745
*/
setenv ("GIO_USE_VFS", "local", 1);
pidfile = pidfile ? pidfile : g_strdup (BM_DEFAULT_PID_FILE);
state_file = state_file ? state_file : g_strdup (BM_DEFAULT_SYSTEM_STATE_FILE);
/* check pid file */
if (check_pidfile (pidfile))
exit (1);
/* Parse the config file */
if (config) {
if (!parse_config_file (config, &conf_plugins, &dhcp, &dns, &cfg_log_level, &cfg_log_domains, &error)) {
fprintf (stderr, "Config file %s invalid: (%d) %s\n",
config,
error ? error->code : -1,
(error && error->message) ? error->message : "unknown");
exit (1);
}
} else {
gboolean parsed = FALSE;
/* Even though we prefer BarcodeManager.conf, we need to check the
* old bm-system-settings.conf first to preserve compat with older
* setups. In package managed systems dropping a BarcodeManager.conf
* onto the system would make NM use it instead of bm-system-settings.conf,
* changing behavior during an upgrade. We don't want that.
*/
/* Try deprecated bm-system-settings.conf first */
if (g_file_test (BM_OLD_SYSTEM_CONF_FILE, G_FILE_TEST_EXISTS)) {
config = g_strdup (BM_OLD_SYSTEM_CONF_FILE);
parsed = parse_config_file (config, &conf_plugins, &dhcp, &dns, &cfg_log_level, &cfg_log_domains, &error);
if (!parsed) {
fprintf (stderr, "Default config file %s invalid: (%d) %s\n",
config,
error ? error->code : -1,
(error && error->message) ? error->message : "unknown");
g_free (config);
config = NULL;
g_clear_error (&error);
}
}
/* Try the preferred BarcodeManager.conf last */
if (!parsed && g_file_test (BM_DEFAULT_SYSTEM_CONF_FILE, G_FILE_TEST_EXISTS)) {
config = g_strdup (BM_DEFAULT_SYSTEM_CONF_FILE);
parsed = parse_config_file (config, &conf_plugins, &dhcp, &dns, &cfg_log_level, &cfg_log_domains, &error);
if (!parsed) {
fprintf (stderr, "Default config file %s invalid: (%d) %s\n",
config,
error ? error->code : -1,
(error && error->message) ? error->message : "unknown");
g_free (config);
config = NULL;
g_clear_error (&error);
}
}
}
/* Logging setup */
if (!bm_logging_setup (log_level ? log_level : cfg_log_level,
log_domains ? log_domains : cfg_log_domains,
&error)) {
fprintf (stderr,
_("%s. Please use --help to see a list of valid options.\n"),
error->message);
exit (1);
}
/* Plugins specified with '--plugins' override those of config file */
plugins = plugins ? plugins : g_strdup (conf_plugins);
g_free (conf_plugins);
/* Parse the state file */
if (!parse_state_file (state_file, &error)) {
fprintf (stderr, "State file %s parsing failed: (%d) %s\n",
state_file,
error ? error->code : -1,
(error && error->message) ? error->message : "unknown");
/* Not a hard failure */
}
g_clear_error (&error);
/* Tricky: become_daemon is FALSE by default, so unless it's TRUE because
* of a CLI option, it'll become TRUE after this
*/
become_daemon = !become_daemon;
if (become_daemon) {
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);
}
if (write_pidfile (pidfile))
wrote_pidfile = TRUE;
}
if (g_fatal_warnings) {
GLogLevelFlags fatal_mask;
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
g_log_set_always_fatal (fatal_mask);
}
/*
* Set the umask to 0022, which results in 0666 & ~0022 = 0644.
* Otherwise, if root (or an su'ing user) has a wacky umask, we could
* write out an unreadable resolv.conf.
*/
umask (022);
g_type_init ();
if (!g_thread_supported ())
g_thread_init (NULL);
dbus_g_thread_init ();
#ifndef HAVE_DBUS_GLIB_DISABLE_LEGACY_PROP_ACCESS
#error HAVE_DBUS_GLIB_DISABLE_LEGACY_PROP_ACCESS not defined
#endif
#if HAVE_DBUS_GLIB_DISABLE_LEGACY_PROP_ACCESS
/* Ensure that non-exported properties don't leak out, and that the
* introspection 'access' permissions are respected.
*/
dbus_glib_global_set_disable_legacy_property_access ();
#endif
setup_signals ();
bm_logging_start (become_daemon);
bm_log_info (LOGD_CORE, "BarcodeManager (version " BM_DIST_VERSION ") is starting...");
success = FALSE;
if (config)
bm_log_info (LOGD_CORE, "Read config file %s", config);
main_loop = g_main_loop_new (NULL, FALSE);
/* Initialize our DBus service & connection */
dbus_mgr = bm_dbus_manager_get ();
manager = bm_manager_get (config, plugins, state_file, &error);
if (manager == NULL) {
bm_log_err (LOGD_CORE, "failed to initialize the barcode manager: %s",
error && error->message ? error->message : "(unknown)");
goto done;
}
policy = bm_policy_new (manager);
if (policy == NULL) {
bm_log_err (LOGD_CORE, "failed to initialize the policy.");
goto done;
}
/* Start our DBus service */
if (!bm_dbus_manager_start_service (dbus_mgr)) {
bm_log_err (LOGD_CORE, "failed to start the dbus service.");
goto done;
}
bm_manager_start (manager);
success = TRUE;
/* Told to quit before getting to the mainloop by the signal handler */
if (quit_early == TRUE)
goto done;
g_main_loop_run (main_loop);
done:
if (policy)
bm_policy_destroy (policy);
if (manager)
g_object_unref (manager);
bm_logging_shutdown ();
if (pidfile && wrote_pidfile)
unlink (pidfile);
/* Free options */
g_free (pidfile);
g_free (state_file);
g_free (config);
g_free (plugins);
g_free (dhcp);
g_strfreev (dns);
g_free (log_level);
g_free (log_domains);
g_free (cfg_log_level);
g_free (cfg_log_domains);
bm_log_info (LOGD_CORE, "exiting (%s)", success ? "success" : "error");
exit (success ? 0 : 1);
}
/*
* 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);
}