-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#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 "modprobe-setup.h"
+#include "locale-setup.h"
+#include "selinux-setup.h"
#include "load-fragment.h"
#include "fdset.h"
#include "special.h"
#include "conf-parser.h"
#include "bus-errors.h"
#include "missing.h"
+#include "label.h"
+#include "build.h"
+#include "strv.h"
static enum {
ACTION_RUN,
} arg_action = ACTION_RUN;
static char *arg_default_unit = NULL;
-static char *arg_console = NULL;
static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
static bool arg_dump_core = true;
static bool arg_crash_shell = false;
static int arg_crash_chvt = -1;
static bool arg_confirm_spawn = false;
-static bool arg_nomodules = 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 FILE* serialization = NULL;
-_noreturn_ static void freeze(void) {
- for (;;)
- pause();
-}
-
static void nop_handler(int sig) {
}
_exit(1);
} else {
- int status, r;
+ siginfo_t status;
+ int r;
/* Order things nicely. */
- if ((r = waitpid(pid, &status, 0)) < 0)
- log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(errno));
- else if (!WCOREDUMP(status))
+ if ((r = wait_for_terminate(pid, &status)) < 0)
+ log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r));
+ else if (status.si_code != CLD_DUMPED)
log_error("Caught <%s>, core dump failed.", signal_to_string(sig));
else
log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid);
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 int parse_proc_cmdline_word(const char *word) {
static const char * const rlmap[] = {
- "single", SPECIAL_RESCUE_TARGET,
- "-s", SPECIAL_RESCUE_TARGET,
- "s", SPECIAL_RESCUE_TARGET,
- "S", SPECIAL_RESCUE_TARGET,
- "1", SPECIAL_RESCUE_TARGET,
- "2", SPECIAL_RUNLEVEL2_TARGET,
- "3", SPECIAL_RUNLEVEL3_TARGET,
- "4", SPECIAL_RUNLEVEL4_TARGET,
- "5", SPECIAL_RUNLEVEL5_TARGET
+ "emergency", SPECIAL_EMERGENCY_TARGET,
+ "single", SPECIAL_RESCUE_TARGET,
+ "-s", SPECIAL_RESCUE_TARGET,
+ "s", SPECIAL_RESCUE_TARGET,
+ "S", SPECIAL_RESCUE_TARGET,
+ "1", SPECIAL_RESCUE_TARGET,
+ "2", SPECIAL_RUNLEVEL2_TARGET,
+ "3", SPECIAL_RUNLEVEL3_TARGET,
+ "4", SPECIAL_RUNLEVEL4_TARGET,
+ "5", SPECIAL_RUNLEVEL5_TARGET,
};
+ assert(word);
+
if (startswith(word, "systemd.unit="))
return set_default_unit(word + 13);
log_warning("Failed to parse show status switch %s, Ignoring.", word + 20);
else
arg_show_status = 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 (streq(word, "nomodules"))
- arg_nomodules = true;
- else if (startswith(word, "console=")) {
+ } 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) {
} else if (streq(word, "quiet")) {
arg_show_status = false;
+#ifdef HAVE_SYSV_COMPAT
arg_sysv_console = false;
+#endif
} else {
unsigned i;
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" },
+ { "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" },
{ 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;
if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
- log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(errno));
+ log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
return 0;
}
ARG_LOG_LOCATION,
ARG_UNIT,
ARG_SYSTEM,
- ARG_SESSION,
+ ARG_USER,
ARG_TEST,
ARG_DUMP_CONFIGURATION_ITEMS,
ARG_DUMP_CORE,
{ "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 },
{ NULL, 0, NULL, 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;
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"
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;
+
+ if (readlink_malloc("/etc/mtab", &p) >= 0) {
+ bool b;
+
+ b = streq(p, "/proc/self/mounts");
+ free(p);
+
+ if (b)
+ return;
+ }
+
+ log_error("/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.");
+}
+
int main(int argc, char *argv[]) {
Manager *m = NULL;
- Unit *target = NULL;
- int r, retval = 1;
+ 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
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);
arg_running_as = MANAGER_SYSTEM;
log_set_target(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);
}
goto finish;
} else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
unit_dump_config_items(stdout);
- retval = 0;
+ retval = EXIT_SUCCESS;
goto finish;
} else if (arg_action == ACTION_DONE) {
- retval = 0;
+ retval = EXIT_SUCCESS;
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");
+ }
+
/* Move out of the way, so that we won't block unmounts */
assert_se(chdir("/") == 0);
if (getpid() == 1)
install_crash_handler();
- log_info(PACKAGE_STRING " running in %s mode.", manager_running_as_to_string(arg_running_as));
+ log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG,
+ PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
- if (arg_running_as == MANAGER_SYSTEM) {
+ if (arg_running_as == MANAGER_SYSTEM && !serialization) {
+ locale_setup();
- /* Disable nscd, to avoid deadlocks when systemd uses
- * NSS and the nscd socket is maintained by us. */
- /* if (nss_disable_nscd) { */
- /* log_debug("Disabling nscd"); */
- /* nss_disable_nscd(); */
- /* } else */
- /* log_debug("Hmm, can't disable nscd."); */
-
- if (!serialization) {
- if (arg_show_status)
- status_welcome();
- modprobe_setup(arg_nomodules);
- kmod_setup();
- hostname_setup();
- loopback_setup();
- }
+ if (arg_show_status)
+ status_welcome();
+
+ kmod_setup();
+ hostname_setup();
+ loopback_setup();
+
+ mkdir_p("/dev/.systemd/ask-password/", 0755);
+
+ test_mtab();
}
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;
+
+ 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));
serialization = NULL;
} else {
DBusError error;
+ Unit *target = NULL;
dbus_error_init(&error);
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_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...");
+
if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) {
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_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");
goto finish;
}
- if (arg_console && arg_running_as == MANAGER_SYSTEM) {
- char *name;
-
- if (asprintf(&name, "getty@%s.service", arg_console) < 0)
- log_error("Out of memory while generating console getty service name.");
- else {
- if ((r = manager_add_job_by_name(m, JOB_START, name, JOB_FAIL, false, &error, NULL)) < 0) {
- log_error("Failed to start console getty target: %s", bus_error(&error, r));
- dbus_error_free(&error);
- }
-
- free(name);
- }
- }
-
if (arg_action == ACTION_TEST) {
printf("-> By jobs:\n");
manager_dump_jobs(m, stdout, "\t");
- retval = 0;
+ retval = EXIT_SUCCESS;
goto finish;
}
}
switch (m->exit_code) {
case MANAGER_EXIT:
- retval = 0;
+ retval = EXIT_SUCCESS;
log_debug("Exit.");
goto finish;
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.");
}
free(arg_default_unit);
free(arg_console);
+ strv_free(arg_default_controllers);
dbus_shutdown();
+ label_finish();
+
if (reexecute) {
const char *args[15];
unsigned i = 0;
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();
- label_finish();
-
return retval;
}