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main.c
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main.c
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <linux/oom.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/utsname.h>
#include <unistd.h>
#if HAVE_VALGRIND_VALGRIND_H
# include <valgrind/valgrind.h>
#endif
#include "sd-bus.h"
#include "sd-daemon.h"
#include "sd-messages.h"
#include "alloc-util.h"
#include "apparmor-setup.h"
#include "architecture.h"
#include "argv-util.h"
#if HAVE_LIBBPF
#include "bpf-restrict-fs.h"
#endif
#include "build.h"
#include "bus-error.h"
#include "bus-util.h"
#include "capability-util.h"
#include "cgroup-util.h"
#include "chase.h"
#include "clock-util.h"
#include "clock-warp.h"
#include "conf-parser.h"
#include "confidential-virt.h"
#include "copy.h"
#include "cpu-set-util.h"
#include "crash-handler.h"
#include "dbus-manager.h"
#include "dbus.h"
#include "constants.h"
#include "dev-setup.h"
#include "efi-random.h"
#include "efivars.h"
#include "emergency-action.h"
#include "env-util.h"
#include "exit-status.h"
#include "fd-util.h"
#include "fdset.h"
#include "fileio.h"
#include "format-util.h"
#include "fs-util.h"
#include "getopt-defs.h"
#include "hexdecoct.h"
#include "hostname-setup.h"
#include "ima-setup.h"
#include "import-creds.h"
#include "initrd-util.h"
#include "killall.h"
#include "kmod-setup.h"
#include "limits-util.h"
#include "load-fragment.h"
#include "log.h"
#include "loopback-setup.h"
#include "machine-id-setup.h"
#include "main.h"
#include "manager.h"
#include "manager-dump.h"
#include "manager-serialize.h"
#include "mkdir-label.h"
#include "mount-setup.h"
#include "mount-util.h"
#include "os-util.h"
#include "pager.h"
#include "parse-argument.h"
#include "parse-util.h"
#include "path-util.h"
#include "pretty-print.h"
#include "proc-cmdline.h"
#include "process-util.h"
#include "psi-util.h"
#include "random-util.h"
#include "rlimit-util.h"
#include "rm-rf.h"
#include "seccomp-util.h"
#include "selinux-setup.h"
#include "selinux-util.h"
#include "signal-util.h"
#include "smack-setup.h"
#include "special.h"
#include "stat-util.h"
#include "stdio-util.h"
#include "string-table.h"
#include "strv.h"
#include "switch-root.h"
#include "sysctl-util.h"
#include "terminal-util.h"
#include "time-util.h"
#include "umask-util.h"
#include "user-util.h"
#include "version.h"
#include "virt.h"
#include "watchdog.h"
#if HAS_FEATURE_ADDRESS_SANITIZER
#include <sanitizer/lsan_interface.h>
#endif
static enum {
ACTION_RUN,
ACTION_HELP,
ACTION_VERSION,
ACTION_TEST,
ACTION_DUMP_CONFIGURATION_ITEMS,
ACTION_DUMP_BUS_PROPERTIES,
ACTION_BUS_INTROSPECT,
} arg_action = ACTION_RUN;
static const char *arg_bus_introspect = NULL;
/* Those variables are initialized to 0 automatically, so we avoid uninitialized memory access. Real
* defaults are assigned in reset_arguments() below. */
static char *arg_default_unit;
static RuntimeScope arg_runtime_scope;
bool arg_dump_core;
int arg_crash_chvt;
bool arg_crash_shell;
CrashAction arg_crash_action;
static char *arg_confirm_spawn;
static ShowStatus arg_show_status;
static StatusUnitFormat arg_status_unit_format;
static bool arg_switched_root;
static PagerFlags arg_pager_flags;
static bool arg_service_watchdogs;
static UnitDefaults arg_defaults;
static usec_t arg_runtime_watchdog;
static usec_t arg_reboot_watchdog;
static usec_t arg_kexec_watchdog;
static usec_t arg_pretimeout_watchdog;
static char *arg_early_core_pattern;
static char *arg_watchdog_pretimeout_governor;
static char *arg_watchdog_device;
static char **arg_default_environment;
static char **arg_manager_environment;
static uint64_t arg_capability_bounding_set;
static bool arg_no_new_privs;
static int arg_protect_system;
static nsec_t arg_timer_slack_nsec;
static Set* arg_syscall_archs;
static FILE* arg_serialization;
static sd_id128_t arg_machine_id;
static bool arg_machine_id_from_firmware = false;
static EmergencyAction arg_cad_burst_action;
static CPUSet arg_cpu_affinity;
static NUMAPolicy arg_numa_policy;
static usec_t arg_clock_usec;
static void *arg_random_seed;
static size_t arg_random_seed_size;
static usec_t arg_reload_limit_interval_sec;
static unsigned arg_reload_limit_burst;
/* A copy of the original environment block */
static char **saved_env = NULL;
static int parse_configuration(const struct rlimit *saved_rlimit_nofile,
const struct rlimit *saved_rlimit_memlock);
static const char* const crash_action_table[_CRASH_ACTION_MAX] = {
[CRASH_FREEZE] = "freeze",
[CRASH_REBOOT] = "reboot",
[CRASH_POWEROFF] = "poweroff",
};
DEFINE_STRING_TABLE_LOOKUP(crash_action, CrashAction);
static DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_crash_action, crash_action, CrashAction, CRASH_FREEZE, "Invalid crash action");
static int manager_find_user_config_paths(char ***ret_files, char ***ret_dirs) {
_cleanup_free_ char *base = NULL;
_cleanup_strv_free_ char **files = NULL, **dirs = NULL;
int r;
r = xdg_user_config_dir(&base, "/systemd");
if (r < 0)
return r;
r = strv_extendf(&files, "%s/user.conf", base);
if (r < 0)
return r;
r = strv_extend(&files, PKGSYSCONFDIR "/user.conf");
if (r < 0)
return r;
r = strv_consume(&dirs, TAKE_PTR(base));
if (r < 0)
return r;
r = strv_extend_strv(&dirs, CONF_PATHS_STRV("systemd"), false);
if (r < 0)
return r;
*ret_files = TAKE_PTR(files);
*ret_dirs = TAKE_PTR(dirs);
return 0;
}
static int save_console_winsize_in_environment(int tty_fd) {
int r;
assert(tty_fd >= 0);
struct winsize ws = {};
if (ioctl(tty_fd, TIOCGWINSZ, &ws) < 0) {
log_debug_errno(errno, "Failed to acquire console window size, ignoring.");
goto unset;
}
if (ws.ws_col <= 0 && ws.ws_row <= 0) {
log_debug("No console window size set, ignoring.");
goto unset;
}
r = setenvf("COLUMNS", /* overwrite= */ true, "%u", ws.ws_col);
if (r < 0) {
log_debug_errno(r, "Failed to set $COLUMNS, ignoring: %m");
goto unset;
}
r = setenvf("LINES", /* overwrite= */ true, "%u", ws.ws_row);
if (r < 0) {
log_debug_errno(r, "Failed to set $LINES, ignoring: %m");
goto unset;
}
log_debug("Recorded console dimensions in environment: $COLUMNS=%u $LINES=%u.", ws.ws_col, ws.ws_row);
return 1;
unset:
(void) unsetenv("COLUMNS");
(void) unsetenv("LINES");
return 0;
}
static int console_setup(void) {
if (getpid_cached() != 1)
return 0;
_cleanup_close_ int tty_fd = -EBADF;
tty_fd = open_terminal("/dev/console", O_RDWR|O_NOCTTY|O_CLOEXEC);
if (tty_fd < 0)
return log_error_errno(tty_fd, "Failed to open /dev/console: %m");
/* We don't want to force text mode. Plymouth may be showing pictures already from initrd. */
reset_dev_console_fd(tty_fd, /* switch_to_text= */ false);
save_console_winsize_in_environment(tty_fd);
return 0;
}
static int parse_proc_cmdline_item(const char *key, const char *value, void *data) {
int r;
assert(key);
if (STR_IN_SET(key, "systemd.unit", "rd.systemd.unit")) {
if (proc_cmdline_value_missing(key, value))
return 0;
if (!unit_name_is_valid(value, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE))
log_warning("Unit name specified on %s= is not valid, ignoring: %s", key, value);
else if (in_initrd() == !!startswith(key, "rd."))
return free_and_strdup_warn(&arg_default_unit, value);
} else if (proc_cmdline_key_streq(key, "systemd.dump_core")) {
r = value ? parse_boolean(value) : true;
if (r < 0)
log_warning_errno(r, "Failed to parse dump core switch %s, ignoring: %m", value);
else
arg_dump_core = r;
} else if (proc_cmdline_key_streq(key, "systemd.early_core_pattern")) {
if (proc_cmdline_value_missing(key, value))
return 0;
if (path_is_absolute(value))
(void) parse_path_argument(value, false, &arg_early_core_pattern);
else
log_warning("Specified core pattern '%s' is not an absolute path, ignoring.", value);
} else if (proc_cmdline_key_streq(key, "systemd.crash_chvt")) {
if (!value)
arg_crash_chvt = 0; /* turn on */
else {
r = parse_crash_chvt(value, &arg_crash_chvt);
if (r < 0)
log_warning_errno(r, "Failed to parse crash chvt switch %s, ignoring: %m", value);
}
} else if (proc_cmdline_key_streq(key, "systemd.crash_shell")) {
r = value ? parse_boolean(value) : true;
if (r < 0)
log_warning_errno(r, "Failed to parse crash shell switch %s, ignoring: %m", value);
else
arg_crash_shell = r;
} else if (proc_cmdline_key_streq(key, "systemd.crash_reboot")) {
r = value ? parse_boolean(value) : true;
if (r < 0)
log_warning_errno(r, "Failed to parse crash reboot switch %s, ignoring: %m", value);
else
arg_crash_action = r ? CRASH_REBOOT : CRASH_FREEZE;
} else if (proc_cmdline_key_streq(key, "systemd.crash_action")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = crash_action_from_string(value);
if (r < 0)
log_warning_errno(r, "Failed to parse crash action switch %s, ignoring: %m", value);
else
arg_crash_action = r;
} else if (proc_cmdline_key_streq(key, "systemd.confirm_spawn")) {
char *s;
r = parse_confirm_spawn(value, &s);
if (r < 0)
log_warning_errno(r, "Failed to parse confirm_spawn switch %s, ignoring: %m", value);
else
free_and_replace(arg_confirm_spawn, s);
} else if (proc_cmdline_key_streq(key, "systemd.service_watchdogs")) {
r = value ? parse_boolean(value) : true;
if (r < 0)
log_warning_errno(r, "Failed to parse service watchdog switch %s, ignoring: %m", value);
else
arg_service_watchdogs = r;
} else if (proc_cmdline_key_streq(key, "systemd.show_status")) {
if (value) {
r = parse_show_status(value, &arg_show_status);
if (r < 0)
log_warning_errno(r, "Failed to parse show status switch %s, ignoring: %m", value);
} else
arg_show_status = SHOW_STATUS_YES;
} else if (proc_cmdline_key_streq(key, "systemd.status_unit_format")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = status_unit_format_from_string(value);
if (r < 0)
log_warning_errno(r, "Failed to parse %s=%s, ignoring: %m", key, value);
else
arg_status_unit_format = r;
} else if (proc_cmdline_key_streq(key, "systemd.default_standard_output")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = exec_output_from_string(value);
if (r < 0)
log_warning_errno(r, "Failed to parse default standard output switch %s, ignoring: %m", value);
else
arg_defaults.std_output = r;
} else if (proc_cmdline_key_streq(key, "systemd.default_standard_error")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = exec_output_from_string(value);
if (r < 0)
log_warning_errno(r, "Failed to parse default standard error switch %s, ignoring: %m", value);
else
arg_defaults.std_error = r;
} else if (streq(key, "systemd.setenv")) {
if (proc_cmdline_value_missing(key, value))
return 0;
if (!env_assignment_is_valid(value))
log_warning("Environment variable assignment '%s' is not valid. Ignoring.", value);
else {
r = strv_env_replace_strdup(&arg_default_environment, value);
if (r < 0)
return log_oom();
}
} else if (proc_cmdline_key_streq(key, "systemd.machine_id")) {
if (proc_cmdline_value_missing(key, value))
return 0;
if (streq(value, "firmware"))
arg_machine_id_from_firmware = true;
else {
r = id128_from_string_nonzero(value, &arg_machine_id);
if (r < 0)
log_warning_errno(r, "MachineID '%s' is not valid, ignoring: %m", value);
else
arg_machine_id_from_firmware = false;
}
} else if (proc_cmdline_key_streq(key, "systemd.default_timeout_start_sec")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = parse_sec(value, &arg_defaults.timeout_start_usec);
if (r < 0)
log_warning_errno(r, "Failed to parse default start timeout '%s', ignoring: %m", value);
if (arg_defaults.timeout_start_usec <= 0)
arg_defaults.timeout_start_usec = USEC_INFINITY;
} else if (proc_cmdline_key_streq(key, "systemd.default_device_timeout_sec")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = parse_sec(value, &arg_defaults.device_timeout_usec);
if (r < 0)
log_warning_errno(r, "Failed to parse default device timeout '%s', ignoring: %m", value);
if (arg_defaults.device_timeout_usec <= 0)
arg_defaults.device_timeout_usec = USEC_INFINITY;
} else if (proc_cmdline_key_streq(key, "systemd.cpu_affinity")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = parse_cpu_set(value, &arg_cpu_affinity);
if (r < 0)
log_warning_errno(r, "Failed to parse CPU affinity mask '%s', ignoring: %m", value);
} else if (proc_cmdline_key_streq(key, "systemd.watchdog_device")) {
if (proc_cmdline_value_missing(key, value))
return 0;
(void) parse_path_argument(value, false, &arg_watchdog_device);
} else if (proc_cmdline_key_streq(key, "systemd.watchdog_sec")) {
if (proc_cmdline_value_missing(key, value))
return 0;
if (streq(value, "default"))
arg_runtime_watchdog = USEC_INFINITY;
else if (streq(value, "off"))
arg_runtime_watchdog = 0;
else {
r = parse_sec(value, &arg_runtime_watchdog);
if (r < 0) {
log_warning_errno(r, "Failed to parse systemd.watchdog_sec= argument '%s', ignoring: %m", value);
return 0;
}
}
arg_kexec_watchdog = arg_reboot_watchdog = arg_runtime_watchdog;
} else if (proc_cmdline_key_streq(key, "systemd.watchdog_pre_sec")) {
if (proc_cmdline_value_missing(key, value))
return 0;
if (streq(value, "default"))
arg_pretimeout_watchdog = USEC_INFINITY;
else if (streq(value, "off"))
arg_pretimeout_watchdog = 0;
else {
r = parse_sec(value, &arg_pretimeout_watchdog);
if (r < 0) {
log_warning_errno(r, "Failed to parse systemd.watchdog_pre_sec= argument '%s', ignoring: %m", value);
return 0;
}
}
} else if (proc_cmdline_key_streq(key, "systemd.watchdog_pretimeout_governor")) {
if (proc_cmdline_value_missing(key, value) || isempty(value)) {
arg_watchdog_pretimeout_governor = mfree(arg_watchdog_pretimeout_governor);
return 0;
}
if (!string_is_safe(value)) {
log_warning("Watchdog pretimeout governor '%s' is not valid, ignoring.", value);
return 0;
}
return free_and_strdup_warn(&arg_watchdog_pretimeout_governor, value);
} else if (proc_cmdline_key_streq(key, "systemd.clock_usec")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = safe_atou64(value, &arg_clock_usec);
if (r < 0)
log_warning_errno(r, "Failed to parse systemd.clock_usec= argument, ignoring: %s", value);
} else if (proc_cmdline_key_streq(key, "systemd.random_seed")) {
void *p;
size_t sz;
if (proc_cmdline_value_missing(key, value))
return 0;
r = unbase64mem(value, &p, &sz);
if (r < 0)
log_warning_errno(r, "Failed to parse systemd.random_seed= argument, ignoring: %s", value);
free(arg_random_seed);
arg_random_seed = sz > 0 ? p : mfree(p);
arg_random_seed_size = sz;
} else if (proc_cmdline_key_streq(key, "systemd.reload_limit_interval_sec")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = parse_sec(value, &arg_reload_limit_interval_sec);
if (r < 0) {
log_warning_errno(r, "Failed to parse systemd.reload_limit_interval_sec= argument '%s', ignoring: %m", value);
return 0;
}
} else if (proc_cmdline_key_streq(key, "systemd.reload_limit_burst")) {
if (proc_cmdline_value_missing(key, value))
return 0;
r = safe_atou(value, &arg_reload_limit_burst);
if (r < 0) {
log_warning_errno(r, "Failed to parse systemd.reload_limit_burst= argument '%s', ignoring: %m", value);
return 0;
}
} else if (streq(key, "quiet") && !value) {
if (arg_show_status == _SHOW_STATUS_INVALID)
arg_show_status = SHOW_STATUS_ERROR;
} else if (streq(key, "debug") && !value) {
/* Note that log_parse_environment() handles 'debug'
* too, and sets the log level to LOG_DEBUG. */
if (detect_container() > 0)
log_set_target(LOG_TARGET_CONSOLE);
} else if (!value) {
const char *target;
/* Compatible with SysV, but supported independently even if SysV compatibility is disabled. */
target = runlevel_to_target(key);
if (target)
return free_and_strdup_warn(&arg_default_unit, target);
}
return 0;
}
#define DEFINE_SETTER(name, func, descr) \
static int name(const char *unit, \
const char *filename, \
unsigned line, \
const char *section, \
unsigned section_line, \
const char *lvalue, \
int ltype, \
const char *rvalue, \
void *data, \
void *userdata) { \
\
int r; \
\
assert(filename); \
assert(lvalue); \
assert(rvalue); \
\
r = func(rvalue); \
if (r < 0) \
log_syntax(unit, LOG_ERR, filename, line, r, \
"Invalid " descr "'%s': %m", \
rvalue); \
\
return 0; \
}
DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level");
DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target");
DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color");
DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location");
DEFINE_SETTER(config_parse_time, log_show_time_from_string, "time");
static int config_parse_default_timeout_abort(
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
int r;
r = config_parse_timeout_abort(
unit,
filename,
line,
section,
section_line,
lvalue,
ltype,
rvalue,
&arg_defaults.timeout_abort_usec,
userdata);
if (r >= 0)
arg_defaults.timeout_abort_set = r;
return 0;
}
static int config_parse_oom_score_adjust(
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
int oa, r;
if (isempty(rvalue)) {
arg_defaults.oom_score_adjust_set = false;
return 0;
}
r = parse_oom_score_adjust(rvalue, &oa);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue);
return 0;
}
arg_defaults.oom_score_adjust = oa;
arg_defaults.oom_score_adjust_set = true;
return 0;
}
static int config_parse_protect_system_pid1(
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
int *v = ASSERT_PTR(data), r;
/* This is modelled after the per-service ProtectSystem= setting, but a bit more restricted on one
* hand, and more automatic in another. i.e. we currently only support yes/no (not "strict" or
* "full"). And we will enable this automatically for the initrd unless configured otherwise.
*
* We might extend this later to match more closely what the per-service ProtectSystem= can do, but
* this is not trivial, due to ordering constraints: besides /usr/ we don't really have much mounted
* at the moment we enable this logic. */
if (isempty(rvalue) || streq(rvalue, "auto")) {
*v = -1;
return 0;
}
r = parse_boolean(rvalue);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse ProtectSystem= argument '%s', ignoring: %m", rvalue);
return 0;
}
*v = r;
return 0;
}
static int config_parse_crash_reboot(
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
CrashAction *v = ASSERT_PTR(data);
int r;
if (isempty(rvalue)) {
*v = CRASH_REBOOT;
return 0;
}
r = parse_boolean(rvalue);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CrashReboot= argument '%s', ignoring: %m", rvalue);
return 0;
}
*v = r > 0 ? CRASH_REBOOT : CRASH_FREEZE;
return 0;
}
static int parse_config_file(void) {
const ConfigTableItem items[] = {
{ "Manager", "LogLevel", config_parse_level2, 0, NULL },
{ "Manager", "LogTarget", config_parse_target, 0, NULL },
{ "Manager", "LogColor", config_parse_color, 0, NULL },
{ "Manager", "LogLocation", config_parse_location, 0, NULL },
{ "Manager", "LogTime", config_parse_time, 0, NULL },
{ "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core },
{ "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, &arg_crash_chvt },
{ "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, &arg_crash_chvt },
{ "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell },
{ "Manager", "CrashReboot", config_parse_crash_reboot, 0, &arg_crash_action },
{ "Manager", "CrashAction", config_parse_crash_action, 0, &arg_crash_action },
{ "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status },
{ "Manager", "StatusUnitFormat", config_parse_status_unit_format, 0, &arg_status_unit_format },
{ "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, &arg_cpu_affinity },
{ "Manager", "NUMAPolicy", config_parse_numa_policy, 0, &arg_numa_policy.type },
{ "Manager", "NUMAMask", config_parse_numa_mask, 0, &arg_numa_policy },
{ "Manager", "JoinControllers", config_parse_warn_compat, DISABLED_LEGACY, NULL },
{ "Manager", "RuntimeWatchdogSec", config_parse_watchdog_sec, 0, &arg_runtime_watchdog },
{ "Manager", "RuntimeWatchdogPreSec", config_parse_watchdog_sec, 0, &arg_pretimeout_watchdog },
{ "Manager", "RebootWatchdogSec", config_parse_watchdog_sec, 0, &arg_reboot_watchdog },
{ "Manager", "ShutdownWatchdogSec", config_parse_watchdog_sec, 0, &arg_reboot_watchdog }, /* obsolete alias */
{ "Manager", "KExecWatchdogSec", config_parse_watchdog_sec, 0, &arg_kexec_watchdog },
{ "Manager", "WatchdogDevice", config_parse_path, 0, &arg_watchdog_device },
{ "Manager", "RuntimeWatchdogPreGovernor", config_parse_string, CONFIG_PARSE_STRING_SAFE, &arg_watchdog_pretimeout_governor },
{ "Manager", "CapabilityBoundingSet", config_parse_capability_set, 0, &arg_capability_bounding_set },
{ "Manager", "NoNewPrivileges", config_parse_bool, 0, &arg_no_new_privs },
{ "Manager", "ProtectSystem", config_parse_protect_system_pid1, 0, &arg_protect_system },
#if HAVE_SECCOMP
{ "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs },
#else
{ "Manager", "SystemCallArchitectures", config_parse_warn_compat, DISABLED_CONFIGURATION, NULL },
#endif
{ "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec },
{ "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_defaults.timer_accuracy_usec },
{ "Manager", "DefaultStandardOutput", config_parse_output_restricted, 0, &arg_defaults.std_output },
{ "Manager", "DefaultStandardError", config_parse_output_restricted, 0, &arg_defaults.std_error },
{ "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_defaults.timeout_start_usec },
{ "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_defaults.timeout_stop_usec },
{ "Manager", "DefaultTimeoutAbortSec", config_parse_default_timeout_abort, 0, NULL },
{ "Manager", "DefaultDeviceTimeoutSec", config_parse_sec, 0, &arg_defaults.device_timeout_usec },
{ "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_defaults.restart_usec },
{ "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_defaults.start_limit_interval}, /* obsolete alias */
{ "Manager", "DefaultStartLimitIntervalSec", config_parse_sec, 0, &arg_defaults.start_limit_interval},
{ "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_defaults.start_limit_burst },
{ "Manager", "DefaultEnvironment", config_parse_environ, arg_runtime_scope, &arg_default_environment },
{ "Manager", "ManagerEnvironment", config_parse_environ, arg_runtime_scope, &arg_manager_environment },
{ "Manager", "DefaultLimitCPU", config_parse_rlimit, RLIMIT_CPU, arg_defaults.rlimit },
{ "Manager", "DefaultLimitFSIZE", config_parse_rlimit, RLIMIT_FSIZE, arg_defaults.rlimit },
{ "Manager", "DefaultLimitDATA", config_parse_rlimit, RLIMIT_DATA, arg_defaults.rlimit },
{ "Manager", "DefaultLimitSTACK", config_parse_rlimit, RLIMIT_STACK, arg_defaults.rlimit },
{ "Manager", "DefaultLimitCORE", config_parse_rlimit, RLIMIT_CORE, arg_defaults.rlimit },
{ "Manager", "DefaultLimitRSS", config_parse_rlimit, RLIMIT_RSS, arg_defaults.rlimit },
{ "Manager", "DefaultLimitNOFILE", config_parse_rlimit, RLIMIT_NOFILE, arg_defaults.rlimit },
{ "Manager", "DefaultLimitAS", config_parse_rlimit, RLIMIT_AS, arg_defaults.rlimit },
{ "Manager", "DefaultLimitNPROC", config_parse_rlimit, RLIMIT_NPROC, arg_defaults.rlimit },
{ "Manager", "DefaultLimitMEMLOCK", config_parse_rlimit, RLIMIT_MEMLOCK, arg_defaults.rlimit },
{ "Manager", "DefaultLimitLOCKS", config_parse_rlimit, RLIMIT_LOCKS, arg_defaults.rlimit },
{ "Manager", "DefaultLimitSIGPENDING", config_parse_rlimit, RLIMIT_SIGPENDING, arg_defaults.rlimit },
{ "Manager", "DefaultLimitMSGQUEUE", config_parse_rlimit, RLIMIT_MSGQUEUE, arg_defaults.rlimit },
{ "Manager", "DefaultLimitNICE", config_parse_rlimit, RLIMIT_NICE, arg_defaults.rlimit },
{ "Manager", "DefaultLimitRTPRIO", config_parse_rlimit, RLIMIT_RTPRIO, arg_defaults.rlimit },
{ "Manager", "DefaultLimitRTTIME", config_parse_rlimit, RLIMIT_RTTIME, arg_defaults.rlimit },
{ "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_defaults.cpu_accounting },
{ "Manager", "DefaultIOAccounting", config_parse_bool, 0, &arg_defaults.io_accounting },
{ "Manager", "DefaultIPAccounting", config_parse_bool, 0, &arg_defaults.ip_accounting },
{ "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_defaults.blockio_accounting },
{ "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_defaults.memory_accounting },
{ "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_defaults.tasks_accounting },
{ "Manager", "DefaultTasksMax", config_parse_tasks_max, 0, &arg_defaults.tasks_max },
{ "Manager", "DefaultMemoryPressureThresholdSec", config_parse_sec, 0, &arg_defaults.memory_pressure_threshold_usec },
{ "Manager", "DefaultMemoryPressureWatch", config_parse_memory_pressure_watch, 0, &arg_defaults.memory_pressure_watch },
{ "Manager", "CtrlAltDelBurstAction", config_parse_emergency_action, arg_runtime_scope, &arg_cad_burst_action },
{ "Manager", "DefaultOOMPolicy", config_parse_oom_policy, 0, &arg_defaults.oom_policy },
{ "Manager", "DefaultOOMScoreAdjust", config_parse_oom_score_adjust, 0, NULL },
{ "Manager", "ReloadLimitIntervalSec", config_parse_sec, 0, &arg_reload_limit_interval_sec },
{ "Manager", "ReloadLimitBurst", config_parse_unsigned, 0, &arg_reload_limit_burst },
#if ENABLE_SMACK
{ "Manager", "DefaultSmackProcessLabel", config_parse_string, 0, &arg_defaults.smack_process_label },
#else
{ "Manager", "DefaultSmackProcessLabel", config_parse_warn_compat, DISABLED_CONFIGURATION, NULL },
#endif
{}
};
if (arg_runtime_scope == RUNTIME_SCOPE_SYSTEM)
(void) config_parse_standard_file_with_dropins(
"systemd/system.conf",
"Manager\0",
config_item_table_lookup, items,
CONFIG_PARSE_WARN,
/* userdata= */ NULL);
else {
_cleanup_strv_free_ char **files = NULL, **dirs = NULL;
int r;
assert(arg_runtime_scope == RUNTIME_SCOPE_USER);
r = manager_find_user_config_paths(&files, &dirs);
if (r < 0)
return log_error_errno(r, "Failed to determine config file paths: %m");
(void) config_parse_many(
(const char* const*) files,
(const char* const*) dirs,
"user.conf.d",
/* root = */ NULL,
"Manager\0",
config_item_table_lookup, items,
CONFIG_PARSE_WARN,
NULL, NULL, NULL);
}
/* Traditionally "0" was used to turn off the default unit timeouts. Fix this up so that we use
* USEC_INFINITY like everywhere else. */
if (arg_defaults.timeout_start_usec <= 0)
arg_defaults.timeout_start_usec = USEC_INFINITY;
if (arg_defaults.timeout_stop_usec <= 0)
arg_defaults.timeout_stop_usec = USEC_INFINITY;
return 0;
}
static void set_manager_defaults(Manager *m) {
int r;
assert(m);
/* Propagates the various default unit property settings into the manager object, i.e. properties
* that do not affect the manager itself, but are just what newly allocated units will have set if
* they haven't set anything else. (Also see set_manager_settings() for the settings that affect the
* manager's own behaviour) */
r = manager_set_unit_defaults(m, &arg_defaults);
if (r < 0)
log_warning_errno(r, "Failed to set manager defaults, ignoring: %m");
r = manager_default_environment(m);
if (r < 0)
log_warning_errno(r, "Failed to set manager default environment, ignoring: %m");
r = manager_transient_environment_add(m, arg_default_environment);
if (r < 0)
log_warning_errno(r, "Failed to add to transient environment, ignoring: %m");
}
static void set_manager_settings(Manager *m) {
int r;
assert(m);
/* Propagates the various manager settings into the manager object, i.e. properties that
* effect the manager itself (as opposed to just being inherited into newly allocated
* units, see set_manager_defaults() above). */
m->confirm_spawn = arg_confirm_spawn;
m->service_watchdogs = arg_service_watchdogs;
m->cad_burst_action = arg_cad_burst_action;
/* Note that we don't do structured initialization here, otherwise it will reset the rate limit
* counter on every daemon-reload. */
m->reload_reexec_ratelimit.interval = arg_reload_limit_interval_sec;
m->reload_reexec_ratelimit.burst = arg_reload_limit_burst;
manager_set_watchdog(m, WATCHDOG_RUNTIME, arg_runtime_watchdog);
manager_set_watchdog(m, WATCHDOG_REBOOT, arg_reboot_watchdog);
manager_set_watchdog(m, WATCHDOG_KEXEC, arg_kexec_watchdog);
manager_set_watchdog(m, WATCHDOG_PRETIMEOUT, arg_pretimeout_watchdog);
r = manager_set_watchdog_pretimeout_governor(m, arg_watchdog_pretimeout_governor);
if (r < 0)
log_warning_errno(r, "Failed to set watchdog pretimeout governor to '%s', ignoring: %m", arg_watchdog_pretimeout_governor);
manager_set_show_status(m, arg_show_status, "command line");
m->status_unit_format = arg_status_unit_format;
}
static int parse_argv(int argc, char *argv[]) {
enum {
COMMON_GETOPT_ARGS,
SYSTEMD_GETOPT_ARGS,
};
static const struct option options[] = {
COMMON_GETOPT_OPTIONS,
SYSTEMD_GETOPT_OPTIONS,
{}
};
int c, r;
bool user_arg_seen = false;
assert(argc >= 1);
assert(argv);
if (getpid_cached() == 1)
opterr = 0;
while ((c = getopt_long(argc, argv, SYSTEMD_GETOPT_SHORT_OPTIONS, options, NULL)) >= 0)
switch (c) {
case ARG_LOG_LEVEL:
r = log_set_max_level_from_string(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse log level \"%s\": %m", optarg);
break;
case ARG_LOG_TARGET:
r = log_set_target_from_string(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse log target \"%s\": %m", optarg);
break;
case ARG_LOG_COLOR:
if (optarg) {
r = log_show_color_from_string(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse log color setting \"%s\": %m",
optarg);
} else
log_show_color(true);
break;
case ARG_LOG_LOCATION:
if (optarg) {
r = log_show_location_from_string(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse log location setting \"%s\": %m",
optarg);
} else
log_show_location(true);
break;
case ARG_LOG_TIME:
if (optarg) {
r = log_show_time_from_string(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse log time setting \"%s\": %m",
optarg);
} else
log_show_time(true);
break;
case ARG_DEFAULT_STD_OUTPUT:
r = exec_output_from_string(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse default standard output setting \"%s\": %m",
optarg);
arg_defaults.std_output = r;
break;
case ARG_DEFAULT_STD_ERROR: