#include <signal.h>
#include <sys/wait.h>
#include <fcntl.h>
+#include <sys/prctl.h>
#include "manager.h"
#include "log.h"
#include "hostname-setup.h"
#include "loopback-setup.h"
#include "kmod-setup.h"
+#include "locale-setup.h"
+#include "selinux-setup.h"
+#include "machine-id-setup.h"
#include "load-fragment.h"
#include "fdset.h"
#include "special.h"
#include "missing.h"
#include "label.h"
#include "build.h"
+#include "strv.h"
static enum {
ACTION_RUN,
static int arg_crash_chvt = -1;
static bool arg_confirm_spawn = false;
static bool arg_show_status = true;
+#ifdef HAVE_SYSV_COMPAT
static bool arg_sysv_console = true;
+#endif
static bool arg_mount_auto = true;
static bool arg_swap_auto = true;
-static char *arg_console = NULL;
+static char **arg_default_controllers = NULL;
+static ExecOutput arg_default_std_output = EXEC_OUTPUT_INHERIT;
+static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
static FILE* serialization = NULL;
-_noreturn_ static void freeze(void) {
- for (;;)
- pause();
-}
-
static void nop_handler(int sig) {
}
sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
}
-static int make_null_stdio(void) {
- int null_fd, r;
-
- if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0) {
- log_error("Failed to open /dev/null: %m");
- return -errno;
- }
-
- if ((r = make_stdio(null_fd)) < 0)
- log_warning("Failed to dup2() device: %s", strerror(-r));
-
- return r;
-}
-
static int console_setup(bool do_reset) {
int tty_fd, r;
static const char * const rlmap[] = {
"emergency", SPECIAL_EMERGENCY_TARGET,
+ "-b", SPECIAL_EMERGENCY_TARGET,
+ "b", SPECIAL_EMERGENCY_TARGET,
"single", SPECIAL_RESCUE_TARGET,
"-s", SPECIAL_RESCUE_TARGET,
"s", SPECIAL_RESCUE_TARGET,
log_warning("Failed to parse show status switch %s, Ignoring.", word + 20);
else
arg_show_status = r;
+ } else if (startswith(word, "systemd.default_standard_output=")) {
+ int r;
+
+ if ((r = exec_output_from_string(word + 32)) < 0)
+ log_warning("Failed to parse default standard output switch %s, Ignoring.", word + 32);
+ else
+ arg_default_std_output = r;
+ } else if (startswith(word, "systemd.default_standard_error=")) {
+ int r;
+ if ((r = exec_output_from_string(word + 31)) < 0)
+ log_warning("Failed to parse default standard error switch %s, Ignoring.", word + 31);
+ else
+ arg_default_std_error = r;
+#ifdef HAVE_SYSV_COMPAT
} else if (startswith(word, "systemd.sysv_console=")) {
int r;
log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20);
else
arg_sysv_console = r;
+#endif
} else if (startswith(word, "systemd.")) {
"systemd.crash_chvt=N Change to VT #N on crash\n"
"systemd.confirm_spawn=0|1 Confirm every process spawn\n"
"systemd.show_status=0|1 Show status updates on the console during bootup\n"
+#ifdef HAVE_SYSV_COMPAT
"systemd.sysv_console=0|1 Connect output of SysV scripts to console\n"
- "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n"
+#endif
+ "systemd.log_target=console|kmsg|syslog|syslog-or-kmsg|null\n"
" Log target\n"
"systemd.log_level=LEVEL Log level\n"
"systemd.log_color=0|1 Highlight important log messages\n"
- "systemd.log_location=0|1 Include code location in log messages\n");
-
- } else if (startswith(word, "console=")) {
- const char *k;
- size_t l;
- char *w = NULL;
-
- k = word + 8;
- l = strcspn(k, ",");
-
- /* Ignore the console setting if set to a VT */
- if (l < 4 ||
- !startswith(k, "tty") ||
- k[3+strspn(k+3, "0123456789")] != 0) {
-
- if (!(w = strndup(k, l)))
- return -ENOMEM;
- }
-
- free(arg_console);
- arg_console = w;
+ "systemd.log_location=0|1 Include code location in log messages\n"
+ "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console\n"
+ " Set default log output for services\n"
+ "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console\n"
+ " Set default log error output for services\n");
} else if (streq(word, "quiet")) {
arg_show_status = false;
+#ifdef HAVE_SYSV_COMPAT
arg_sysv_console = false;
+#endif
} else {
unsigned i;
return 0;
}
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
+
static int parse_config_file(void) {
const ConfigItem items[] = {
- { "LogLevel", config_parse_level, NULL, "Manager" },
- { "LogTarget", config_parse_target, NULL, "Manager" },
- { "LogColor", config_parse_color, NULL, "Manager" },
- { "LogLocation", config_parse_location, NULL, "Manager" },
- { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" },
- { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" },
- { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" },
- { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" },
- { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" },
- { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" },
- { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" },
- { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" },
+ { "LogLevel", config_parse_level, NULL, "Manager" },
+ { "LogTarget", config_parse_target, NULL, "Manager" },
+ { "LogColor", config_parse_color, NULL, "Manager" },
+ { "LogLocation", config_parse_location, NULL, "Manager" },
+ { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" },
+ { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" },
+ { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" },
+#ifdef HAVE_SYSV_COMPAT
+ { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" },
+#endif
+ { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" },
+ { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" },
+ { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" },
+ { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" },
+ { "DefaultControllers", config_parse_strv, &arg_default_controllers, "Manager" },
+ { "DefaultStandardOutput", config_parse_output, &arg_default_std_output, "Manager" },
+ { "DefaultStandardError", config_parse_output, &arg_default_std_error, "Manager" },
{ NULL, NULL, NULL, NULL }
};
const char *fn;
int r;
- fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : SESSION_CONFIG_FILE;
+ fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE;
if (!(f = fopen(fn, "re"))) {
if (errno == ENOENT)
}
static int parse_proc_cmdline(void) {
- char *line;
+ char *line, *w, *state;
int r;
- char *w;
size_t l;
- char *state;
+
+ /* Don't read /proc/cmdline if we are in a container, since
+ * that is only relevant for the host system */
+ if (detect_container(NULL) > 0)
+ return 0;
if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
ARG_LOG_LOCATION,
ARG_UNIT,
ARG_SYSTEM,
- ARG_SESSION,
+ ARG_USER,
ARG_TEST,
ARG_DUMP_CONFIGURATION_ITEMS,
ARG_DUMP_CORE,
ARG_SHOW_STATUS,
ARG_SYSV_CONSOLE,
ARG_DESERIALIZE,
- ARG_INTROSPECT
+ ARG_INTROSPECT,
+ ARG_DEFAULT_STD_OUTPUT,
+ ARG_DEFAULT_STD_ERROR
};
static const struct option options[] = {
{ "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
{ "unit", required_argument, NULL, ARG_UNIT },
{ "system", no_argument, NULL, ARG_SYSTEM },
- { "session", no_argument, NULL, ARG_SESSION },
+ { "user", no_argument, NULL, ARG_USER },
{ "test", no_argument, NULL, ARG_TEST },
{ "help", no_argument, NULL, 'h' },
{ "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
{ "crash-shell", no_argument, NULL, ARG_CRASH_SHELL },
{ "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN },
{ "show-status", optional_argument, NULL, ARG_SHOW_STATUS },
+#ifdef HAVE_SYSV_COMPAT
{ "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE },
+#endif
{ "deserialize", required_argument, NULL, ARG_DESERIALIZE },
{ "introspect", optional_argument, NULL, ARG_INTROSPECT },
+ { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, },
+ { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, },
{ NULL, 0, NULL, 0 }
};
assert(argc >= 1);
assert(argv);
- while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0)
+ if (getpid() == 1)
+ opterr = 0;
+
+ while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0)
switch (c) {
break;
+ case ARG_DEFAULT_STD_OUTPUT:
+
+ if ((r = exec_output_from_string(optarg)) < 0) {
+ log_error("Failed to parse default standard output setting %s.", optarg);
+ return r;
+ } else
+ arg_default_std_output = r;
+ break;
+
+ case ARG_DEFAULT_STD_ERROR:
+
+ if ((r = exec_output_from_string(optarg)) < 0) {
+ log_error("Failed to parse default standard error output setting %s.", optarg);
+ return r;
+ } else
+ arg_default_std_error = r;
+ break;
+
case ARG_UNIT:
if ((r = set_default_unit(optarg)) < 0) {
arg_running_as = MANAGER_SYSTEM;
break;
- case ARG_SESSION:
- arg_running_as = MANAGER_SESSION;
+ case ARG_USER:
+ arg_running_as = MANAGER_USER;
break;
case ARG_TEST:
} else
arg_show_status = true;
break;
-
+#ifdef HAVE_SYSV_COMPAT
case ARG_SYSV_CONSOLE:
if (optarg) {
} else
arg_sysv_console = true;
break;
+#endif
case ARG_DESERIALIZE: {
int fd;
log_set_max_level(LOG_DEBUG);
break;
- case '?':
- return -EINVAL;
+ case 'b':
+ case 's':
+ case 'z':
+ /* Just to eat away the sysvinit kernel
+ * cmdline args without getopt() error
+ * messages that we'll parse in
+ * parse_proc_cmdline_word() or ignore. */
+ case '?':
default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
+ if (getpid() != 1) {
+ log_error("Unknown option code %c", c);
+ return -EINVAL;
+ }
+
+ break;
}
- /* PID 1 will get the kernel arguments as parameters, which we
- * ignore and unconditionally read from
- * /proc/cmdline. However, we need to ignore those arguments
- * here. */
- if (arg_running_as != MANAGER_SYSTEM && optind < argc) {
- log_error("Excess arguments.");
- return -EINVAL;
+ if (optind < argc) {
+ if (getpid() != 1) {
+ /* Hmm, when we aren't run as init system
+ * let's complain about excess arguments */
+
+ log_error("Excess arguments.");
+ return -EINVAL;
+
+ } else if (detect_container(NULL) > 0) {
+ char **a;
+
+ /* All /proc/cmdline arguments the kernel
+ * didn't understand it passed to us. We're
+ * note really interested in that usually
+ * since /proc/cmdline is more interesting and
+ * complete. With one exception: if we are run
+ * in a container /proc/cmdline is not
+ * relevant for us, hence we rely on argv[]
+ * instead. */
+
+ for (a = argv + optind; a < argv + argc; a++)
+ if ((r = parse_proc_cmdline_word(*a)) < 0)
+ return r;
+ }
}
return 0;
static int help(void) {
printf("%s [OPTIONS...]\n\n"
- "Starts up and maintains the system or a session.\n\n"
+ "Starts up and maintains the system or user services.\n\n"
" -h --help Show this help\n"
" --test Determine startup sequence, dump it and exit\n"
" --dump-configuration-items Dump understood unit configuration items\n"
" --introspect[=INTERFACE] Extract D-Bus interface data\n"
" --unit=UNIT Set default unit\n"
" --system Run a system instance, even if PID != 1\n"
- " --session Run a session instance\n"
+ " --user Run a user instance\n"
" --dump-core Dump core on crash\n"
" --crash-shell Run shell on crash\n"
" --confirm-spawn Ask for confirmation when spawning processes\n"
" --show-status[=0|1] Show status updates on the console during bootup\n"
+#ifdef HAVE_SYSV_COMPAT
" --sysv-console[=0|1] Connect output of SysV scripts to console\n"
+#endif
" --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n"
" --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
" --log-color[=0|1] Highlight important log messages\n"
- " --log-location[=0|1] Include code location in log messages\n",
+ " --log-location[=0|1] Include code location in log messages\n"
+ " --default-standard-output= Set default standard output for services\n"
+ " --default-standard-error= Set default standard error output for services\n",
program_invocation_short_name);
return 0;
assert(_fds);
if ((r = manager_open_serialization(m, &f)) < 0) {
- log_error("Failed to create serialization faile: %s", strerror(-r));
+ log_error("Failed to create serialization file: %s", strerror(-r));
goto fail;
}
return r;
}
+static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) {
+ const char *e;
+ unsigned long long a, b;
+
+ assert(t);
+
+ if (!(e = getenv("RD_TIMESTAMP")))
+ return NULL;
+
+ if (sscanf(e, "%llu %llu", &a, &b) != 2)
+ return NULL;
+
+ t->realtime = (usec_t) a;
+ t->monotonic = (usec_t) b;
+
+ return t;
+}
+
+static void test_mtab(void) {
+ char *p;
+
+ /* Check that /etc/mtab is a symlink */
+
+ if (readlink_malloc("/etc/mtab", &p) >= 0) {
+ bool b;
+
+ b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts");
+ free(p);
+
+ if (b)
+ return;
+ }
+
+ log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. "
+ "This is not supported anymore. "
+ "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output.");
+}
+
+static void test_usr(void) {
+
+ /* Check that /usr is not a separate fs */
+
+ if (dir_is_empty("/usr") > 0)
+ log_warning("/usr appears to be on a different file system than /. This is not supported anymore. "
+ "Some things will probably break (sometimes even silently) in mysterious ways. "
+ "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information.");
+}
+
int main(int argc, char *argv[]) {
Manager *m = NULL;
int r, retval = EXIT_FAILURE;
FDSet *fds = NULL;
bool reexecute = false;
+ const char *shutdown_verb = NULL;
+ dual_timestamp initrd_timestamp = { 0ULL, 0ULL };
+ char systemd[] = "systemd";
if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
- /* This is compatbility support for SysV, where
+ /* This is compatibility support for SysV, where
* calling init as a user is identical to telinit. */
errno = -ENOENT;
return 1;
}
+ /* If we get started via the /sbin/init symlink then we are
+ called 'init'. After a subsequent reexecution we are then
+ called 'systemd'. That is confusing, hence let's call us
+ systemd right-away. */
+
+ program_invocation_short_name = systemd;
+ prctl(PR_SET_NAME, systemd);
+
log_show_color(isatty(STDERR_FILENO) > 0);
log_show_location(false);
log_set_max_level(LOG_INFO);
if (getpid() == 1) {
arg_running_as = MANAGER_SYSTEM;
- log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
+ log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_CONSOLE : LOG_TARGET_SYSLOG_OR_KMSG);
+
+ /* This might actually not return, but cause a
+ * reexecution */
+ if (selinux_setup(argv) < 0)
+ goto finish;
if (label_init() < 0)
goto finish;
} else {
- arg_running_as = MANAGER_SESSION;
+ arg_running_as = MANAGER_USER;
log_set_target(LOG_TARGET_CONSOLE);
}
if (parse_argv(argc, argv) < 0)
goto finish;
+ if (arg_action == ACTION_TEST && geteuid() == 0) {
+ log_error("Don't run test mode as root.");
+ goto finish;
+ }
+
+ if (arg_running_as == MANAGER_SYSTEM &&
+ arg_action == ACTION_RUN &&
+ running_in_chroot() > 0) {
+ log_error("Cannot be run in a chroot() environment.");
+ goto finish;
+ }
+
+ /* If Plymouth is being run make sure we show the status, so
+ * that there's something nice to see when people press Esc */
+ if (access("/dev/.run/initramfs/plymouth", F_OK) >= 0)
+ arg_show_status = true;
+
if (arg_action == ACTION_HELP) {
retval = help();
goto finish;
"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
arg_running_as == MANAGER_SYSTEM);
+ if (arg_running_as == MANAGER_SYSTEM) {
+ /* Parse the data passed to us by the initrd and unset it */
+ parse_initrd_timestamp(&initrd_timestamp);
+ filter_environ("RD_");
+
+ /* Unset some environment variables passed in from the
+ * kernel that don't really make sense for us. */
+ unsetenv("HOME");
+ unsetenv("TERM");
+
+ /* All other variables are left as is, so that clients
+ * can still read them via /proc/1/environ */
+ }
+
/* Move out of the way, so that we won't block unmounts */
assert_se(chdir("/") == 0);
PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
if (arg_running_as == MANAGER_SYSTEM && !serialization) {
+ locale_setup();
+
if (arg_show_status)
status_welcome();
kmod_setup();
hostname_setup();
+ machine_id_setup();
loopback_setup();
+
+ test_mtab();
+ test_usr();
}
if ((r = manager_new(arg_running_as, &m)) < 0) {
m->confirm_spawn = arg_confirm_spawn;
m->show_status = arg_show_status;
+#ifdef HAVE_SYSV_COMPAT
m->sysv_console = arg_sysv_console;
+#endif
m->mount_auto = arg_mount_auto;
m->swap_auto = arg_swap_auto;
+ m->default_std_output = arg_default_std_output;
+ m->default_std_error = arg_default_std_error;
+
+ if (dual_timestamp_is_set(&initrd_timestamp))
+ m->initrd_timestamp = initrd_timestamp;
- if (arg_console)
- manager_set_console(m, arg_console);
+ if (arg_default_controllers)
+ manager_set_default_controllers(m, arg_default_controllers);
if ((r = manager_startup(m, serialization, fds)) < 0)
log_error("Failed to fully start up daemon: %s", strerror(-r));
if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) {
log_error("Failed to load default target: %s", bus_error(&error, r));
dbus_error_free(&error);
- } else if (target->meta.load_state != UNIT_LOADED)
+ } else if (target->meta.load_state == UNIT_ERROR)
log_error("Failed to load default target: %s", strerror(-target->meta.load_error));
+ else if (target->meta.load_state == UNIT_MASKED)
+ log_error("Default target masked.");
if (!target || target->meta.load_state != UNIT_LOADED) {
log_info("Trying to load rescue target...");
log_error("Failed to load rescue target: %s", bus_error(&error, r));
dbus_error_free(&error);
goto finish;
- } else if (target->meta.load_state != UNIT_LOADED) {
+ } else if (target->meta.load_state == UNIT_ERROR) {
log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error));
goto finish;
+ } else if (target->meta.load_state == UNIT_MASKED) {
+ log_error("Rescue target masked.");
+ goto finish;
}
}
+ assert(target->meta.load_state == UNIT_LOADED);
+
if (arg_action == ACTION_TEST) {
printf("-> By units:\n");
manager_dump_units(m, stdout, "\t");
log_notice("Reexecuting.");
goto finish;
+ case MANAGER_REBOOT:
+ case MANAGER_POWEROFF:
+ case MANAGER_HALT:
+ case MANAGER_KEXEC: {
+ static const char * const table[_MANAGER_EXIT_CODE_MAX] = {
+ [MANAGER_REBOOT] = "reboot",
+ [MANAGER_POWEROFF] = "poweroff",
+ [MANAGER_HALT] = "halt",
+ [MANAGER_KEXEC] = "kexec"
+ };
+
+ assert_se(shutdown_verb = table[m->exit_code]);
+
+ log_notice("Shutting down.");
+ goto finish;
+ }
+
default:
assert_not_reached("Unknown exit code.");
}
manager_free(m);
free(arg_default_unit);
- free(arg_console);
+ strv_free(arg_default_controllers);
dbus_shutdown();
if (arg_running_as == MANAGER_SYSTEM)
args[i++] = "--system";
else
- args[i++] = "--session";
+ args[i++] = "--user";
if (arg_dump_core)
args[i++] = "--dump-core";
else
args[i++] = "--show-status=0";
+#ifdef HAVE_SYSV_COMPAT
if (arg_sysv_console)
args[i++] = "--sysv-console=1";
else
args[i++] = "--sysv-console=0";
+#endif
snprintf(sfd, sizeof(sfd), "%i", fileno(serialization));
char_array_0(sfd);
if (fds)
fdset_free(fds);
+ if (shutdown_verb) {
+ const char * command_line[] = {
+ SYSTEMD_SHUTDOWN_BINARY_PATH,
+ shutdown_verb,
+ NULL
+ };
+
+ execv(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line);
+ log_error("Failed to execute shutdown binary, freezing: %m");
+ }
+
if (getpid() == 1)
freeze();
~ianmdlvl / elogind.git / blobdiff