int
main (int argc, char *argv[])
{
char *bad_domains = NULL;
GError *error = NULL;
gboolean wrote_pidfile = FALSE;
gs_free char *pidfile = NULL;
gs_unref_object NMDhcpClient *dhcp4_client = NULL;
gs_unref_object NMRDisc *rdisc = NULL;
GByteArray *hwaddr = NULL;
size_t hwaddr_len = 0;
gconstpointer tmp;
gs_free NMUtilsIPv6IfaceId *iid = NULL;
guint sd_id;
nm_g_type_init ();
setpgid (getpid (), getpid ());
do_early_setup (&argc, &argv);
if (global_opt.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);
}
if (global_opt.show_version) {
fprintf (stdout, NM_DIST_VERSION "\n");
exit (0);
}
nm_main_utils_ensure_root ();
if (!global_opt.ifname || !global_opt.uuid) {
fprintf (stderr, _("An interface name and UUID are required\n"));
exit (1);
}
ifindex = if_nametoindex (global_opt.ifname);
if (ifindex <= 0) {
fprintf (stderr, _("Failed to find interface index for %s (%s)\n"), global_opt.ifname, strerror (errno));
exit (1);
}
pidfile = g_strdup_printf (NMIH_PID_FILE_FMT, ifindex);
nm_main_utils_ensure_not_running_pidfile (pidfile);
nm_main_utils_ensure_rundir ();
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);
}
if (global_opt.become_daemon && !global_opt.debug) {
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 (nm_main_utils_write_pidfile (pidfile))
wrote_pidfile = TRUE;
}
/* Set up unix signal handling - before creating threads, but after daemonizing! */
main_loop = g_main_loop_new (NULL, FALSE);
setup_signals ();
nm_logging_syslog_openlog (global_opt.logging_backend
? global_opt.logging_backend
: (global_opt.debug ? "debug" : NULL));
nm_log_info (LOGD_CORE, "nm-iface-helper (version " NM_DIST_VERSION ") is starting...");
/* Set up platform interaction layer */
nm_linux_platform_setup ();
tmp = nm_platform_link_get_address (NM_PLATFORM_GET, ifindex, &hwaddr_len);
if (tmp) {
hwaddr = g_byte_array_sized_new (hwaddr_len);
g_byte_array_append (hwaddr, tmp, hwaddr_len);
}
if (global_opt.iid_str) {
GBytes *bytes;
gsize ignored = 0;
bytes = nm_utils_hexstr2bin (global_opt.iid_str);
if (!bytes || g_bytes_get_size (bytes) != sizeof (*iid)) {
fprintf (stderr, _("(%s): Invalid IID %s\n"), global_opt.ifname, global_opt.iid_str);
exit (1);
}
iid = g_bytes_unref_to_data (bytes, &ignored);
}
if (global_opt.dhcp4_address) {
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip4_property_path (global_opt.ifname, "promote_secondaries"), "1");
dhcp4_client = nm_dhcp_manager_start_ip4 (nm_dhcp_manager_get (),
global_opt.ifname,
ifindex,
hwaddr,
global_opt.uuid,
global_opt.priority_v4,
!!global_opt.dhcp4_hostname,
global_opt.dhcp4_hostname,
global_opt.dhcp4_fqdn,
global_opt.dhcp4_clientid,
45,
NULL,
global_opt.dhcp4_address);
g_assert (dhcp4_client);
g_signal_connect (dhcp4_client,
NM_DHCP_CLIENT_SIGNAL_STATE_CHANGED,
G_CALLBACK (dhcp4_state_changed),
NULL);
}
if (global_opt.slaac) {
nm_platform_link_set_user_ipv6ll_enabled (NM_PLATFORM_GET, ifindex, TRUE);
rdisc = nm_lndp_rdisc_new (NM_PLATFORM_GET, ifindex, global_opt.ifname, global_opt.uuid, global_opt.addr_gen_mode, NULL);
g_assert (rdisc);
if (iid)
nm_rdisc_set_iid (rdisc, *iid);
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra"), "1");
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra_defrtr"), "0");
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra_pinfo"), "0");
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra_rtr_pref"), "0");
g_signal_connect (NM_PLATFORM_GET,
NM_PLATFORM_SIGNAL_IP6_ADDRESS_CHANGED,
G_CALLBACK (ip6_address_changed),
rdisc);
g_signal_connect (rdisc,
NM_RDISC_CONFIG_CHANGED,
G_CALLBACK (rdisc_config_changed),
NULL);
g_signal_connect (rdisc,
NM_RDISC_RA_TIMEOUT,
G_CALLBACK (rdisc_ra_timeout),
NULL);
nm_rdisc_start (rdisc);
}
sd_id = nm_sd_event_attach_default ();
g_main_loop_run (main_loop);
g_clear_pointer (&hwaddr, g_byte_array_unref);
if (pidfile && wrote_pidfile)
unlink (pidfile);
nm_log_info (LOGD_CORE, "exiting");
nm_clear_g_source (&sd_id);
exit (0);
}
/*
* 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);
}