/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include "sd-daemon.h" #include "bus-util.h" #include "install.h" #include "main-func.h" #include "output-mode.h" #include "pager.h" #include "path-util.h" #include "pretty-print.h" #include "rlimit-util.h" #include "sigbus.h" #include "signal-util.h" #include "string-table.h" #include "systemctl-add-dependency.h" #include "systemctl-cancel-job.h" #include "systemctl-clean-or-freeze.h" #include "systemctl-compat-halt.h" #include "systemctl-compat-runlevel.h" #include "systemctl-compat-shutdown.h" #include "systemctl-compat-telinit.h" #include "systemctl-daemon-reload.h" #include "systemctl-edit.h" #include "systemctl-enable.h" #include "systemctl-is-active.h" #include "systemctl-is-enabled.h" #include "systemctl-is-system-running.h" #include "systemctl-kill.h" #include "systemctl-list-dependencies.h" #include "systemctl-list-jobs.h" #include "systemctl-list-machines.h" #include "systemctl-list-unit-files.h" #include "systemctl-list-units.h" #include "systemctl-log-setting.h" #include "systemctl-logind.h" #include "systemctl-preset-all.h" #include "systemctl-reset-failed.h" #include "systemctl-service-watchdogs.h" #include "systemctl-set-default.h" #include "systemctl-set-environment.h" #include "systemctl-set-property.h" #include "systemctl-show.h" #include "systemctl-start-special.h" #include "systemctl-start-unit.h" #include "systemctl-switch-root.h" #include "systemctl-sysv-compat.h" #include "systemctl-trivial-method.h" #include "systemctl-util.h" #include "systemctl.h" #include "terminal-util.h" #include "time-util.h" #include "verbs.h" #include "virt.h" char **arg_types = NULL; char **arg_states = NULL; char **arg_properties = NULL; bool arg_all = false; enum dependency arg_dependency = DEPENDENCY_FORWARD; const char *arg_job_mode = "replace"; UnitFileScope arg_scope = UNIT_FILE_SYSTEM; bool arg_wait = false; bool arg_no_block = false; bool arg_no_legend = false; PagerFlags arg_pager_flags = 0; bool arg_no_wtmp = false; bool arg_no_sync = false; bool arg_no_wall = false; bool arg_no_reload = false; bool arg_value = false; bool arg_show_types = false; bool arg_ignore_inhibitors = false; bool arg_dry_run = false; bool arg_quiet = false; bool arg_full = false; bool arg_recursive = false; bool arg_with_dependencies = false; bool arg_show_transaction = false; int arg_force = 0; bool arg_ask_password = false; bool arg_runtime = false; UnitFilePresetMode arg_preset_mode = UNIT_FILE_PRESET_FULL; char **arg_wall = NULL; const char *arg_kill_who = NULL; int arg_signal = SIGTERM; char *arg_root = NULL; usec_t arg_when = 0; const char *arg_reboot_argument = NULL; enum action arg_action = ACTION_SYSTEMCTL; BusTransport arg_transport = BUS_TRANSPORT_LOCAL; const char *arg_host = NULL; unsigned arg_lines = 10; OutputMode arg_output = OUTPUT_SHORT; bool arg_plain = false; bool arg_firmware_setup = false; usec_t arg_boot_loader_menu = USEC_INFINITY; const char *arg_boot_loader_entry = NULL; bool arg_now = false; bool arg_jobs_before = false; bool arg_jobs_after = false; char **arg_clean_what = NULL; TimestampStyle arg_timestamp_style = TIMESTAMP_PRETTY; STATIC_DESTRUCTOR_REGISTER(arg_wall, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_root, freep); STATIC_DESTRUCTOR_REGISTER(arg_types, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_states, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_properties, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_clean_what, strv_freep); static int systemctl_help(void) { _cleanup_free_ char *link = NULL; int r; (void) pager_open(arg_pager_flags); r = terminal_urlify_man("systemctl", "1", &link); if (r < 0) return log_oom(); printf("%1$s [OPTIONS...] COMMAND ...\n\n" "%5$sQuery or send control commands to the system manager.%6$s\n" "\n%3$sUnit Commands:%4$s\n" " list-units [PATTERN...] List units currently in memory\n" " list-sockets [PATTERN...] List socket units currently in memory,\n" " ordered by address\n" " list-timers [PATTERN...] List timer units currently in memory,\n" " ordered by next elapse\n" " is-active PATTERN... Check whether units are active\n" " is-failed PATTERN... Check whether units are failed\n" " status [PATTERN...|PID...] Show runtime status of one or more units\n" " show [PATTERN...|JOB...] Show properties of one or more\n" " units/jobs or the manager\n" " cat PATTERN... Show files and drop-ins of specified units\n" " help PATTERN...|PID... Show manual for one or more units\n" " list-dependencies [UNIT...] Recursively show units which are required\n" " or wanted by the units or by which those\n" " units are required or wanted\n" " start UNIT... Start (activate) one or more units\n" " stop UNIT... Stop (deactivate) one or more units\n" " reload UNIT... Reload one or more units\n" " restart UNIT... Start or restart one or more units\n" " try-restart UNIT... Restart one or more units if active\n" " reload-or-restart UNIT... Reload one or more units if possible,\n" " otherwise start or restart\n" " try-reload-or-restart UNIT... If active, reload one or more units,\n" " if supported, otherwise restart\n" " isolate UNIT Start one unit and stop all others\n" " kill UNIT... Send signal to processes of a unit\n" " clean UNIT... Clean runtime, cache, state, logs or\n" " configuration of unit\n" " freeze PATTERN... Freeze execution of unit processes\n" " thaw PATTERN... Resume execution of a frozen unit\n" " set-property UNIT PROPERTY=VALUE... Sets one or more properties of a unit\n" " service-log-level SERVICE [LEVEL] Get/set logging threshold for service\n" " service-log-target SERVICE [TARGET] Get/set logging target for service\n" " reset-failed [PATTERN...] Reset failed state for all, one, or more\n" " units" "\n%3$sUnit File Commands:%4$s\n" " list-unit-files [PATTERN...] List installed unit files\n" " enable [UNIT...|PATH...] Enable one or more unit files\n" " disable UNIT... Disable one or more unit files\n" " reenable UNIT... Reenable one or more unit files\n" " preset UNIT... Enable/disable one or more unit files\n" " based on preset configuration\n" " preset-all Enable/disable all unit files based on\n" " preset configuration\n" " is-enabled UNIT... Check whether unit files are enabled\n" " mask UNIT... Mask one or more units\n" " unmask UNIT... Unmask one or more units\n" " link PATH... Link one or more units files into\n" " the search path\n" " revert UNIT... Revert one or more unit files to vendor\n" " version\n" " add-wants TARGET UNIT... Add 'Wants' dependency for the target\n" " on specified one or more units\n" " add-requires TARGET UNIT... Add 'Requires' dependency for the target\n" " on specified one or more units\n" " edit UNIT... Edit one or more unit files\n" " get-default Get the name of the default target\n" " set-default TARGET Set the default target\n" "\n%3$sMachine Commands:%4$s\n" " list-machines [PATTERN...] List local containers and host\n" "\n%3$sJob Commands:%4$s\n" " list-jobs [PATTERN...] List jobs\n" " cancel [JOB...] Cancel all, one, or more jobs\n" "\n%3$sEnvironment Commands:%4$s\n" " show-environment Dump environment\n" " set-environment VARIABLE=VALUE... Set one or more environment variables\n" " unset-environment VARIABLE... Unset one or more environment variables\n" " import-environment VARIABLE... Import all or some environment variables\n" "\n%3$sManager State Commands:%4$s\n" " daemon-reload Reload systemd manager configuration\n" " daemon-reexec Reexecute systemd manager\n" " log-level [LEVEL] Get/set logging threshold for manager\n" " log-target [TARGET] Get/set logging target for manager\n" " service-watchdogs [BOOL] Get/set service watchdog state\n" "\n%3$sSystem Commands:%4$s\n" " is-system-running Check whether system is fully running\n" " default Enter system default mode\n" " rescue Enter system rescue mode\n" " emergency Enter system emergency mode\n" " halt Shut down and halt the system\n" " poweroff Shut down and power-off the system\n" " reboot Shut down and reboot the system\n" " kexec Shut down and reboot the system with kexec\n" " exit [EXIT_CODE] Request user instance or container exit\n" " switch-root ROOT [INIT] Change to a different root file system\n" " suspend Suspend the system\n" " hibernate Hibernate the system\n" " hybrid-sleep Hibernate and suspend the system\n" " suspend-then-hibernate Suspend the system, wake after a period of\n" " time, and hibernate" "\n%3$sOptions:%4$s\n" " -h --help Show this help\n" " --version Show package version\n" " --system Connect to system manager\n" " --user Connect to user service manager\n" " -H --host=[USER@]HOST Operate on remote host\n" " -M --machine=CONTAINER Operate on a local container\n" " -t --type=TYPE List units of a particular type\n" " --state=STATE List units with particular LOAD or SUB or ACTIVE state\n" " --failed Shortcut for --state=failed\n" " -p --property=NAME Show only properties by this name\n" " -P NAME Equivalent to --value --property=NAME\n" " -a --all Show all properties/all units currently in memory,\n" " including dead/empty ones. To list all units installed\n" " on the system, use 'list-unit-files' instead.\n" " -l --full Don't ellipsize unit names on output\n" " -r --recursive Show unit list of host and local containers\n" " --reverse Show reverse dependencies with 'list-dependencies'\n" " --with-dependencies Show unit dependencies with 'status', 'cat',\n" " 'list-units', and 'list-unit-files'.\n" " --job-mode=MODE Specify how to deal with already queued jobs, when\n" " queueing a new job\n" " -T --show-transaction When enqueuing a unit job, show full transaction\n" " --show-types When showing sockets, explicitly show their type\n" " --value When showing properties, only print the value\n" " -i --ignore-inhibitors When shutting down or sleeping, ignore inhibitors\n" " --kill-who=WHO Whom to send signal to\n" " -s --signal=SIGNAL Which signal to send\n" " --what=RESOURCES Which types of resources to remove\n" " --now Start or stop unit after enabling or disabling it\n" " --dry-run Only print what would be done\n" " Currently supported by verbs: halt, poweroff, reboot,\n" " kexec, suspend, hibernate, suspend-then-hibernate,\n" " hybrid-sleep, default, rescue, emergency, and exit.\n" " -q --quiet Suppress output\n" " --wait For (re)start, wait until service stopped again\n" " For is-system-running, wait until startup is completed\n" " --no-block Do not wait until operation finished\n" " --no-wall Don't send wall message before halt/power-off/reboot\n" " --no-reload Don't reload daemon after en-/dis-abling unit files\n" " --no-legend Do not print a legend (column headers and hints)\n" " --no-pager Do not pipe output into a pager\n" " --no-ask-password Do not ask for system passwords\n" " --global Enable/disable/mask unit files globally\n" " --runtime Enable/disable/mask unit files temporarily until next\n" " reboot\n" " -f --force When enabling unit files, override existing symlinks\n" " When shutting down, execute action immediately\n" " --preset-mode= Apply only enable, only disable, or all presets\n" " --root=PATH Enable/disable/mask unit files in the specified root\n" " directory\n" " -n --lines=INTEGER Number of journal entries to show\n" " -o --output=STRING Change journal output mode (short, short-precise,\n" " short-iso, short-iso-precise, short-full,\n" " short-monotonic, short-unix,\n" " verbose, export, json, json-pretty, json-sse, cat)\n" " --firmware-setup Tell the firmware to show the setup menu on next boot\n" " --boot-loader-menu=TIME\n" " Boot into boot loader menu on next boot\n" " --boot-loader-entry=NAME\n" " Boot into a specific boot loader entry on next boot\n" " --plain Print unit dependencies as a list instead of a tree\n" " --timestamp=FORMAT Change format of printed timestamps.\n" " 'pretty' (default): 'Day YYYY-MM-DD HH:MM:SS TZ\n" " 'us': 'Day YYYY-MM-DD HH:MM:SS.UUUUUU TZ\n" " 'utc': 'Day YYYY-MM-DD HH:MM:SS UTC\n" " 'us+utc': 'Day YYYY-MM-DD HH:MM:SS.UUUUUU UTC\n" "\nSee the %2$s for details.\n" , program_invocation_short_name , link , ansi_underline(), ansi_normal() , ansi_highlight(), ansi_normal() ); return 0; } static void help_types(void) { if (!arg_no_legend) puts("Available unit types:"); DUMP_STRING_TABLE(unit_type, UnitType, _UNIT_TYPE_MAX); } static void help_states(void) { if (!arg_no_legend) puts("Available unit load states:"); DUMP_STRING_TABLE(unit_load_state, UnitLoadState, _UNIT_LOAD_STATE_MAX); if (!arg_no_legend) puts("\nAvailable unit active states:"); DUMP_STRING_TABLE(unit_active_state, UnitActiveState, _UNIT_ACTIVE_STATE_MAX); if (!arg_no_legend) puts("\nAvailable unit file states:"); DUMP_STRING_TABLE(unit_file_state, UnitFileState, _UNIT_FILE_STATE_MAX); if (!arg_no_legend) puts("\nAvailable automount unit substates:"); DUMP_STRING_TABLE(automount_state, AutomountState, _AUTOMOUNT_STATE_MAX); if (!arg_no_legend) puts("\nAvailable device unit substates:"); DUMP_STRING_TABLE(device_state, DeviceState, _DEVICE_STATE_MAX); if (!arg_no_legend) puts("\nAvailable mount unit substates:"); DUMP_STRING_TABLE(mount_state, MountState, _MOUNT_STATE_MAX); if (!arg_no_legend) puts("\nAvailable path unit substates:"); DUMP_STRING_TABLE(path_state, PathState, _PATH_STATE_MAX); if (!arg_no_legend) puts("\nAvailable scope unit substates:"); DUMP_STRING_TABLE(scope_state, ScopeState, _SCOPE_STATE_MAX); if (!arg_no_legend) puts("\nAvailable service unit substates:"); DUMP_STRING_TABLE(service_state, ServiceState, _SERVICE_STATE_MAX); if (!arg_no_legend) puts("\nAvailable slice unit substates:"); DUMP_STRING_TABLE(slice_state, SliceState, _SLICE_STATE_MAX); if (!arg_no_legend) puts("\nAvailable socket unit substates:"); DUMP_STRING_TABLE(socket_state, SocketState, _SOCKET_STATE_MAX); if (!arg_no_legend) puts("\nAvailable swap unit substates:"); DUMP_STRING_TABLE(swap_state, SwapState, _SWAP_STATE_MAX); if (!arg_no_legend) puts("\nAvailable target unit substates:"); DUMP_STRING_TABLE(target_state, TargetState, _TARGET_STATE_MAX); if (!arg_no_legend) puts("\nAvailable timer unit substates:"); DUMP_STRING_TABLE(timer_state, TimerState, _TIMER_STATE_MAX); } static int systemctl_parse_argv(int argc, char *argv[]) { enum { ARG_FAIL = 0x100, ARG_REVERSE, ARG_AFTER, ARG_BEFORE, ARG_DRY_RUN, ARG_SHOW_TYPES, ARG_IRREVERSIBLE, ARG_IGNORE_DEPENDENCIES, ARG_VALUE, ARG_VERSION, ARG_USER, ARG_SYSTEM, ARG_GLOBAL, ARG_NO_BLOCK, ARG_NO_LEGEND, ARG_NO_PAGER, ARG_NO_WALL, ARG_ROOT, ARG_NO_RELOAD, ARG_KILL_WHO, ARG_NO_ASK_PASSWORD, ARG_FAILED, ARG_RUNTIME, ARG_PLAIN, ARG_STATE, ARG_JOB_MODE, ARG_PRESET_MODE, ARG_FIRMWARE_SETUP, ARG_BOOT_LOADER_MENU, ARG_BOOT_LOADER_ENTRY, ARG_NOW, ARG_MESSAGE, ARG_WITH_DEPENDENCIES, ARG_WAIT, ARG_WHAT, ARG_REBOOT_ARG, ARG_TIMESTAMP_STYLE, }; static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "type", required_argument, NULL, 't' }, { "property", required_argument, NULL, 'p' }, { "all", no_argument, NULL, 'a' }, { "reverse", no_argument, NULL, ARG_REVERSE }, { "after", no_argument, NULL, ARG_AFTER }, { "before", no_argument, NULL, ARG_BEFORE }, { "show-types", no_argument, NULL, ARG_SHOW_TYPES }, { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */ { "full", no_argument, NULL, 'l' }, { "job-mode", required_argument, NULL, ARG_JOB_MODE }, { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */ { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */ { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */ { "ignore-inhibitors", no_argument, NULL, 'i' }, { "value", no_argument, NULL, ARG_VALUE }, { "user", no_argument, NULL, ARG_USER }, { "system", no_argument, NULL, ARG_SYSTEM }, { "global", no_argument, NULL, ARG_GLOBAL }, { "wait", no_argument, NULL, ARG_WAIT }, { "no-block", no_argument, NULL, ARG_NO_BLOCK }, { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "no-wall", no_argument, NULL, ARG_NO_WALL }, { "dry-run", no_argument, NULL, ARG_DRY_RUN }, { "quiet", no_argument, NULL, 'q' }, { "root", required_argument, NULL, ARG_ROOT }, { "force", no_argument, NULL, 'f' }, { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, { "kill-who", required_argument, NULL, ARG_KILL_WHO }, { "signal", required_argument, NULL, 's' }, { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, { "host", required_argument, NULL, 'H' }, { "machine", required_argument, NULL, 'M' }, { "runtime", no_argument, NULL, ARG_RUNTIME }, { "lines", required_argument, NULL, 'n' }, { "output", required_argument, NULL, 'o' }, { "plain", no_argument, NULL, ARG_PLAIN }, { "state", required_argument, NULL, ARG_STATE }, { "recursive", no_argument, NULL, 'r' }, { "with-dependencies", no_argument, NULL, ARG_WITH_DEPENDENCIES }, { "preset-mode", required_argument, NULL, ARG_PRESET_MODE }, { "firmware-setup", no_argument, NULL, ARG_FIRMWARE_SETUP }, { "boot-loader-menu", required_argument, NULL, ARG_BOOT_LOADER_MENU }, { "boot-loader-entry", required_argument, NULL, ARG_BOOT_LOADER_ENTRY }, { "now", no_argument, NULL, ARG_NOW }, { "message", required_argument, NULL, ARG_MESSAGE }, { "show-transaction", no_argument, NULL, 'T' }, { "what", required_argument, NULL, ARG_WHAT }, { "reboot-argument", required_argument, NULL, ARG_REBOOT_ARG }, { "timestamp", required_argument, NULL, ARG_TIMESTAMP_STYLE }, {} }; int c, r; assert(argc >= 0); assert(argv); /* We default to allowing interactive authorization only in systemctl (not in the legacy commands) */ arg_ask_password = true; while ((c = getopt_long(argc, argv, "ht:p:P:alqfs:H:M:n:o:iTr.::", options, NULL)) >= 0) switch (c) { case 'h': return systemctl_help(); case ARG_VERSION: return version(); case 't': { const char *p; if (isempty(optarg)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--type= requires arguments."); for (p = optarg;;) { _cleanup_free_ char *type = NULL; r = extract_first_word(&p, &type, ",", 0); if (r < 0) return log_error_errno(r, "Failed to parse type: %s", optarg); if (r == 0) break; if (streq(type, "help")) { help_types(); return 0; } if (unit_type_from_string(type) >= 0) { if (strv_consume(&arg_types, TAKE_PTR(type)) < 0) return log_oom(); continue; } /* It's much nicer to use --state= for load states, but let's support this in * --types= too for compatibility with old versions */ if (unit_load_state_from_string(type) >= 0) { if (strv_consume(&arg_states, TAKE_PTR(type)) < 0) return log_oom(); continue; } log_error("Unknown unit type or load state '%s'.", type); return log_info_errno(SYNTHETIC_ERRNO(EINVAL), "Use -t help to see a list of allowed values."); } break; } case 'P': arg_value = true; _fallthrough_; case 'p': /* Make sure that if the empty property list was specified, we won't show any properties. */ if (isempty(optarg) && !arg_properties) { arg_properties = new0(char*, 1); if (!arg_properties) return log_oom(); } else { const char *p; for (p = optarg;;) { _cleanup_free_ char *prop = NULL; r = extract_first_word(&p, &prop, ",", 0); if (r < 0) return log_error_errno(r, "Failed to parse property: %s", optarg); if (r == 0) break; if (strv_consume(&arg_properties, TAKE_PTR(prop)) < 0) return log_oom(); } } /* If the user asked for a particular property, show it, even if it is empty. */ arg_all = true; break; case 'a': arg_all = true; break; case ARG_REVERSE: arg_dependency = DEPENDENCY_REVERSE; break; case ARG_AFTER: arg_dependency = DEPENDENCY_AFTER; arg_jobs_after = true; break; case ARG_BEFORE: arg_dependency = DEPENDENCY_BEFORE; arg_jobs_before = true; break; case ARG_SHOW_TYPES: arg_show_types = true; break; case ARG_VALUE: arg_value = true; break; case ARG_JOB_MODE: arg_job_mode = optarg; break; case ARG_FAIL: arg_job_mode = "fail"; break; case ARG_IRREVERSIBLE: arg_job_mode = "replace-irreversibly"; break; case ARG_IGNORE_DEPENDENCIES: arg_job_mode = "ignore-dependencies"; break; case ARG_USER: arg_scope = UNIT_FILE_USER; break; case ARG_SYSTEM: arg_scope = UNIT_FILE_SYSTEM; break; case ARG_GLOBAL: arg_scope = UNIT_FILE_GLOBAL; break; case ARG_WAIT: arg_wait = true; break; case ARG_NO_BLOCK: arg_no_block = true; break; case ARG_NO_LEGEND: arg_no_legend = true; break; case ARG_NO_PAGER: arg_pager_flags |= PAGER_DISABLE; break; case ARG_NO_WALL: arg_no_wall = true; break; case ARG_ROOT: r = parse_path_argument_and_warn(optarg, false, &arg_root); if (r < 0) return r; break; case 'l': arg_full = true; break; case ARG_FAILED: if (strv_extend(&arg_states, "failed") < 0) return log_oom(); break; case ARG_DRY_RUN: arg_dry_run = true; break; case 'q': arg_quiet = true; break; case 'f': arg_force++; break; case ARG_NO_RELOAD: arg_no_reload = true; break; case ARG_KILL_WHO: arg_kill_who = optarg; break; case 's': if (streq(optarg, "help")) { DUMP_STRING_TABLE(signal, int, _NSIG); return 0; } arg_signal = signal_from_string(optarg); if (arg_signal < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse signal string %s.", optarg); break; case ARG_NO_ASK_PASSWORD: arg_ask_password = false; break; case 'H': arg_transport = BUS_TRANSPORT_REMOTE; arg_host = optarg; break; case 'M': arg_transport = BUS_TRANSPORT_MACHINE; arg_host = optarg; break; case ARG_RUNTIME: arg_runtime = true; break; case 'n': if (safe_atou(optarg, &arg_lines) < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse lines '%s'", optarg); break; case 'o': if (streq(optarg, "help")) { DUMP_STRING_TABLE(output_mode, OutputMode, _OUTPUT_MODE_MAX); return 0; } arg_output = output_mode_from_string(optarg); if (arg_output < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown output '%s'.", optarg); if (OUTPUT_MODE_IS_JSON(arg_output)) { arg_no_legend = true; arg_plain = true; } break; case 'i': arg_ignore_inhibitors = true; break; case ARG_PLAIN: arg_plain = true; break; case ARG_FIRMWARE_SETUP: arg_firmware_setup = true; break; case ARG_BOOT_LOADER_MENU: r = parse_sec(optarg, &arg_boot_loader_menu); if (r < 0) return log_error_errno(r, "Failed to parse --boot-loader-menu= argument '%s': %m", optarg); break; case ARG_BOOT_LOADER_ENTRY: if (streq(optarg, "help")) { /* Yes, this means, "help" is not a valid boot loader entry name we can deal with */ r = help_boot_loader_entry(); if (r < 0) return r; return 0; } arg_boot_loader_entry = empty_to_null(optarg); break; case ARG_STATE: { const char *p; if (isempty(optarg)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--state= requires arguments."); for (p = optarg;;) { _cleanup_free_ char *s = NULL; r = extract_first_word(&p, &s, ",", 0); if (r < 0) return log_error_errno(r, "Failed to parse state: %s", optarg); if (r == 0) break; if (streq(s, "help")) { help_states(); return 0; } if (strv_consume(&arg_states, TAKE_PTR(s)) < 0) return log_oom(); } break; } case 'r': if (geteuid() != 0) return log_error_errno(SYNTHETIC_ERRNO(EPERM), "--recursive requires root privileges."); arg_recursive = true; break; case ARG_PRESET_MODE: if (streq(optarg, "help")) { DUMP_STRING_TABLE(unit_file_preset_mode, UnitFilePresetMode, _UNIT_FILE_PRESET_MAX); return 0; } arg_preset_mode = unit_file_preset_mode_from_string(optarg); if (arg_preset_mode < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse preset mode: %s.", optarg); break; case ARG_NOW: arg_now = true; break; case ARG_MESSAGE: if (strv_extend(&arg_wall, optarg) < 0) return log_oom(); break; case 'T': arg_show_transaction = true; break; case ARG_WITH_DEPENDENCIES: arg_with_dependencies = true; break; case ARG_WHAT: { const char *p; if (isempty(optarg)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--what= requires arguments."); for (p = optarg;;) { _cleanup_free_ char *k = NULL; r = extract_first_word(&p, &k, ",", 0); if (r < 0) return log_error_errno(r, "Failed to parse directory type: %s", optarg); if (r == 0) break; if (streq(k, "help")) { puts("runtime\n" "state\n" "cache\n" "logs\n" "configuration"); return 0; } r = strv_consume(&arg_clean_what, TAKE_PTR(k)); if (r < 0) return log_oom(); } break; } case ARG_REBOOT_ARG: arg_reboot_argument = optarg; break; case ARG_TIMESTAMP_STYLE: if (streq(optarg, "help")) { DUMP_STRING_TABLE(timestamp_style, TimestampStyle, _TIMESTAMP_STYLE_MAX); return 0; } arg_timestamp_style = timestamp_style_from_string(optarg); if (arg_timestamp_style < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid value: %s.", optarg); break; case '.': /* Output an error mimicking getopt, and print a hint afterwards */ log_error("%s: invalid option -- '.'", program_invocation_name); log_notice("Hint: to specify units starting with a dash, use \"--\":\n" " %s [OPTIONS...] COMMAND -- -.%s ...", program_invocation_name, optarg ?: "mount"); _fallthrough_; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (arg_transport == BUS_TRANSPORT_REMOTE && arg_scope != UNIT_FILE_SYSTEM) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot access user instance remotely."); if (arg_wait && arg_no_block) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--wait may not be combined with --no-block."); return 1; } static int parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); if (program_invocation_short_name) { if (strstr(program_invocation_short_name, "halt")) { arg_action = ACTION_HALT; return halt_parse_argv(argc, argv); } else if (strstr(program_invocation_short_name, "poweroff")) { arg_action = ACTION_POWEROFF; return halt_parse_argv(argc, argv); } else if (strstr(program_invocation_short_name, "reboot")) { if (kexec_loaded()) arg_action = ACTION_KEXEC; else arg_action = ACTION_REBOOT; return halt_parse_argv(argc, argv); } else if (strstr(program_invocation_short_name, "shutdown")) { arg_action = ACTION_POWEROFF; return shutdown_parse_argv(argc, argv); } else if (strstr(program_invocation_short_name, "init")) { /* Matches invocations as "init" as well as "telinit", which are synonymous when run * as PID != 1 on SysV. * * On SysV "telinit" was the official command to communicate with PID 1, but "init" would * redirect itself to "telinit" if called with PID != 1. We follow the same logic here still, * though we add one level of indirection, as we implement "telinit" in "systemctl". Hence, for * us if you invoke "init" you get "systemd", but it will execve() "systemctl" immediately with * argv[] unmodified if PID is != 1. If you invoke "telinit" you directly get "systemctl". In * both cases we shall do the same thing, which is why we do strstr(p_i_s_n, "init") here, as a * quick way to match both. * * Also see redirect_telinit() in src/core/main.c. */ if (sd_booted() > 0) { arg_action = _ACTION_INVALID; return telinit_parse_argv(argc, argv); } else { /* Hmm, so some other init system is running, we need to forward this request to * it. For now we simply guess that it is Upstart. */ (void) rlimit_nofile_safe(); execv(TELINIT, argv); return log_error_errno(SYNTHETIC_ERRNO(EIO), "Couldn't find an alternative telinit implementation to spawn."); } } else if (strstr(program_invocation_short_name, "runlevel")) { arg_action = ACTION_RUNLEVEL; return runlevel_parse_argv(argc, argv); } } arg_action = ACTION_SYSTEMCTL; return systemctl_parse_argv(argc, argv); } static int systemctl_main(int argc, char *argv[]) { static const Verb verbs[] = { { "list-units", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_units }, { "list-unit-files", VERB_ANY, VERB_ANY, 0, list_unit_files }, { "list-sockets", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_sockets }, { "list-timers", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_timers }, { "list-jobs", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_jobs }, { "list-machines", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_machines }, { "clear-jobs", VERB_ANY, 1, VERB_ONLINE_ONLY, trivial_method }, { "cancel", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, cancel_job }, { "start", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "stop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "condstop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */ { "reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "reload-or-try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with old systemctl <= 228 */ { "try-reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, { "force-reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with SysV */ { "condreload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */ { "condrestart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with RH */ { "isolate", 2, 2, VERB_ONLINE_ONLY, start_unit }, { "kill", 2, VERB_ANY, VERB_ONLINE_ONLY, kill_unit }, { "clean", 2, VERB_ANY, VERB_ONLINE_ONLY, clean_or_freeze_unit }, { "freeze", 2, VERB_ANY, VERB_ONLINE_ONLY, clean_or_freeze_unit }, { "thaw", 2, VERB_ANY, VERB_ONLINE_ONLY, clean_or_freeze_unit }, { "is-active", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active }, { "check", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active }, /* deprecated alias of is-active */ { "is-failed", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_failed }, { "show", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show }, { "cat", 2, VERB_ANY, VERB_ONLINE_ONLY, cat }, { "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show }, { "help", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show }, { "daemon-reload", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload }, { "daemon-reexec", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload }, { "log-level", VERB_ANY, 2, VERB_ONLINE_ONLY, log_setting }, { "log-target", VERB_ANY, 2, VERB_ONLINE_ONLY, log_setting }, { "service-log-level", 2, 3, VERB_ONLINE_ONLY, service_log_setting }, { "service-log-target", 2, 3, VERB_ONLINE_ONLY, service_log_setting }, { "service-watchdogs", VERB_ANY, 2, VERB_ONLINE_ONLY, service_watchdogs }, { "show-environment", VERB_ANY, 1, VERB_ONLINE_ONLY, show_environment }, { "set-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment }, { "unset-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment }, { "import-environment", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, import_environment }, { "halt", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "poweroff", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "reboot", VERB_ANY, 2, VERB_ONLINE_ONLY, start_system_special }, { "kexec", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "suspend", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "hibernate", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "hybrid-sleep", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "suspend-then-hibernate",VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "default", VERB_ANY, 1, VERB_ONLINE_ONLY, start_special }, { "rescue", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "emergency", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special }, { "exit", VERB_ANY, 2, VERB_ONLINE_ONLY, start_special }, { "reset-failed", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, reset_failed }, { "enable", 2, VERB_ANY, 0, enable_unit }, { "disable", 2, VERB_ANY, 0, enable_unit }, { "is-enabled", 2, VERB_ANY, 0, unit_is_enabled }, { "reenable", 2, VERB_ANY, 0, enable_unit }, { "preset", 2, VERB_ANY, 0, enable_unit }, { "preset-all", VERB_ANY, 1, 0, preset_all }, { "mask", 2, VERB_ANY, 0, enable_unit }, { "unmask", 2, VERB_ANY, 0, enable_unit }, { "link", 2, VERB_ANY, 0, enable_unit }, { "revert", 2, VERB_ANY, 0, enable_unit }, { "switch-root", 2, VERB_ANY, VERB_ONLINE_ONLY, switch_root }, { "list-dependencies", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_dependencies }, { "set-default", 2, 2, 0, set_default }, { "get-default", VERB_ANY, 1, 0, get_default }, { "set-property", 3, VERB_ANY, VERB_ONLINE_ONLY, set_property }, { "is-system-running", VERB_ANY, 1, 0, is_system_running }, { "add-wants", 3, VERB_ANY, 0, add_dependency }, { "add-requires", 3, VERB_ANY, 0, add_dependency }, { "edit", 2, VERB_ANY, VERB_ONLINE_ONLY, edit }, {} }; const Verb *verb = verbs_find_verb(argv[optind], verbs); if (verb && (verb->flags & VERB_ONLINE_ONLY) && arg_root) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Verb '%s' cannot be used with --root=.", argv[optind] ?: verb->verb); return dispatch_verb(argc, argv, verbs, NULL); } static int run(int argc, char *argv[]) { int r; setlocale(LC_ALL, ""); log_parse_environment_cli(); log_open(); /* The journal merging logic potentially needs a lot of fds. */ (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE); sigbus_install(); r = parse_argv(argc, argv); if (r <= 0) goto finish; if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) { if (!arg_quiet) log_info("Running in chroot, ignoring request."); r = 0; goto finish; } /* systemctl_main() will print an error message for the bus connection, but only if it needs to */ switch (arg_action) { case ACTION_SYSTEMCTL: r = systemctl_main(argc, argv); break; /* Legacy command aliases set arg_action. They provide some fallbacks, e.g. to tell sysvinit to * reboot after you have installed systemd binaries. */ case ACTION_HALT: case ACTION_POWEROFF: case ACTION_REBOOT: case ACTION_KEXEC: r = halt_main(); break; case ACTION_RUNLEVEL2: case ACTION_RUNLEVEL3: case ACTION_RUNLEVEL4: case ACTION_RUNLEVEL5: case ACTION_RESCUE: r = start_with_fallback(); break; case ACTION_RELOAD: case ACTION_REEXEC: r = reload_with_fallback(); break; case ACTION_CANCEL_SHUTDOWN: r = logind_cancel_shutdown(); break; case ACTION_RUNLEVEL: r = runlevel_main(); break; case ACTION_EXIT: case ACTION_SUSPEND: case ACTION_HIBERNATE: case ACTION_HYBRID_SLEEP: case ACTION_SUSPEND_THEN_HIBERNATE: case ACTION_EMERGENCY: case ACTION_DEFAULT: /* systemctl verbs with no equivalent in the legacy commands. These cannot appear in * arg_action. Fall through. */ case _ACTION_INVALID: default: assert_not_reached("Unknown action"); } finish: release_busses(); /* Note that we return r here, not 0, so that we can implement the LSB-like return codes */ return r; } DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);