Yu Watanabe
8ba48d4bf8
This also kills support for controlling system state through /sbin/init, initctl, and telinit.
251 lines
15 KiB
C
251 lines
15 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <getopt.h>
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#include <locale.h>
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#include "dissect-image.h"
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#include "glyph-util.h"
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#include "log.h"
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#include "logs-show.h"
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#include "loop-util.h"
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#include "main-func.h"
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#include "mount-util.h"
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#include "stat-util.h"
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#include "systemctl.h"
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#include "systemctl-add-dependency.h"
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#include "systemctl-cancel-job.h"
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#include "systemctl-clean-or-freeze.h"
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#include "systemctl-compat-halt.h"
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#include "systemctl-daemon-reload.h"
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#include "systemctl-edit.h"
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#include "systemctl-enable.h"
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#include "systemctl-is-active.h"
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#include "systemctl-is-enabled.h"
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#include "systemctl-is-system-running.h"
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#include "systemctl-kill.h"
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#include "systemctl-list-dependencies.h"
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#include "systemctl-list-jobs.h"
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#include "systemctl-list-machines.h"
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#include "systemctl-list-unit-files.h"
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#include "systemctl-list-units.h"
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#include "systemctl-log-setting.h"
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#include "systemctl-logind.h"
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#include "systemctl-mount.h"
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#include "systemctl-preset-all.h"
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#include "systemctl-reset-failed.h"
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#include "systemctl-service-watchdogs.h"
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#include "systemctl-set-default.h"
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#include "systemctl-set-environment.h"
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#include "systemctl-set-property.h"
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#include "systemctl-show.h"
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#include "systemctl-start-special.h"
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#include "systemctl-start-unit.h"
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#include "systemctl-switch-root.h"
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#include "systemctl-trivial-method.h"
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#include "systemctl-util.h"
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#include "systemctl-whoami.h"
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#include "verbs.h"
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#include "virt.h"
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static int systemctl_main(int argc, char *argv[]) {
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static const Verb verbs[] = {
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{ "list-units", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, verb_list_units },
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{ "list-unit-files", VERB_ANY, VERB_ANY, 0, verb_list_unit_files },
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{ "list-automounts", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_automounts },
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{ "list-paths", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_paths },
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{ "list-sockets", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_sockets },
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{ "list-timers", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_timers },
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{ "list-jobs", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_jobs },
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{ "list-machines", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_machines },
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{ "clear-jobs", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_trivial_method },
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{ "cancel", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_cancel },
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{ "start", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "stop", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "condstop", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start }, /* For compatibility with ALTLinux */
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{ "reload", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "restart", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "reload-or-restart", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "reload-or-try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start }, /* For compatibility with old systemctl <= 228 */
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{ "try-reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start },
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{ "force-reload", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start }, /* For compatibility with SysV */
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{ "condreload", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start }, /* For compatibility with ALTLinux */
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{ "condrestart", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_start }, /* For compatibility with RH */
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{ "isolate", 2, 2, VERB_ONLINE_ONLY, verb_start },
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{ "kill", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_kill },
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{ "clean", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_clean_or_freeze },
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{ "freeze", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_clean_or_freeze },
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{ "thaw", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_clean_or_freeze },
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{ "is-active", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_is_active },
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{ "check", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_is_active }, /* deprecated alias of is-active */
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{ "is-failed", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_is_failed },
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{ "show", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_show },
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{ "cat", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_cat },
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{ "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_show },
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{ "help", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_show },
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{ "daemon-reload", 1, 1, VERB_ONLINE_ONLY, verb_daemon_reload },
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{ "daemon-reexec", 1, 1, VERB_ONLINE_ONLY, verb_daemon_reload },
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{ "log-level", VERB_ANY, 2, VERB_ONLINE_ONLY, verb_log_setting },
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{ "log-target", VERB_ANY, 2, VERB_ONLINE_ONLY, verb_log_setting },
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{ "service-log-level", 2, 3, VERB_ONLINE_ONLY, verb_service_log_setting },
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{ "service-log-target", 2, 3, VERB_ONLINE_ONLY, verb_service_log_setting },
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{ "service-watchdogs", VERB_ANY, 2, VERB_ONLINE_ONLY, verb_service_watchdogs },
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{ "show-environment", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_show_environment },
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{ "set-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_set_environment },
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{ "unset-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_set_environment },
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{ "import-environment", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_import_environment },
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{ "halt", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "poweroff", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "reboot", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "kexec", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "soft-reboot", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "sleep", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "suspend", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "hibernate", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "hybrid-sleep", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "suspend-then-hibernate",VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "default", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_special },
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{ "rescue", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "emergency", VERB_ANY, 1, VERB_ONLINE_ONLY, verb_start_system_special },
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{ "exit", VERB_ANY, 2, VERB_ONLINE_ONLY, verb_start_special },
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{ "reset-failed", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_reset_failed },
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{ "enable", 2, VERB_ANY, 0, verb_enable },
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{ "disable", 2, VERB_ANY, 0, verb_enable },
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{ "is-enabled", 2, VERB_ANY, 0, verb_is_enabled },
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{ "reenable", 2, VERB_ANY, 0, verb_enable },
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{ "preset", 2, VERB_ANY, 0, verb_enable },
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{ "preset-all", VERB_ANY, 1, 0, verb_preset_all },
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{ "mask", 2, VERB_ANY, 0, verb_enable },
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{ "unmask", 2, VERB_ANY, 0, verb_enable },
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{ "link", 2, VERB_ANY, 0, verb_enable },
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{ "revert", 2, VERB_ANY, 0, verb_enable },
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{ "switch-root", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_switch_root },
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{ "list-dependencies", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_list_dependencies },
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{ "set-default", 2, 2, 0, verb_set_default },
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{ "get-default", VERB_ANY, 1, 0, verb_get_default },
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{ "set-property", 3, VERB_ANY, VERB_ONLINE_ONLY, verb_set_property },
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{ "is-system-running", VERB_ANY, 1, 0, verb_is_system_running },
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{ "add-wants", 3, VERB_ANY, 0, verb_add_dependency },
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{ "add-requires", 3, VERB_ANY, 0, verb_add_dependency },
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{ "edit", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_edit },
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{ "bind", 3, 4, VERB_ONLINE_ONLY, verb_bind },
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{ "mount-image", 4, 5, VERB_ONLINE_ONLY, verb_mount_image },
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{ "whoami", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, verb_whoami },
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{}
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};
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const Verb *verb = verbs_find_verb(argv[optind], verbs);
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if (verb && (verb->flags & VERB_ONLINE_ONLY) && arg_root)
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"Verb '%s' cannot be used with --root= or --image=.",
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argv[optind] ?: verb->verb);
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return dispatch_verb(argc, argv, verbs, NULL);
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}
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static int run(int argc, char *argv[]) {
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_cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
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_cleanup_(umount_and_freep) char *mounted_dir = NULL;
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int r;
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setlocale(LC_ALL, "");
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log_setup();
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r = systemctl_dispatch_parse_argv(argc, argv);
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if (r <= 0)
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goto finish;
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journal_browse_prepare();
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if (proc_mounted() == 0)
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log_full(arg_no_warn ? LOG_DEBUG : LOG_WARNING,
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"%s%s/proc/ is not mounted. This is not a supported mode of operation. Please fix\n"
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"your invocation environment to mount /proc/ and /sys/ properly. Proceeding anyway.\n"
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"Your mileage may vary.",
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optional_glyph(GLYPH_WARNING_SIGN),
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optional_glyph(GLYPH_SPACE));
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if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) {
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if (!arg_quiet)
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log_info("Running in chroot, ignoring request.");
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r = 0;
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goto finish;
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}
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/* systemctl_main() will print an error message for the bus connection, but only if it needs to */
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if (arg_image) {
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assert(!arg_root);
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r = mount_image_privately_interactively(
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arg_image,
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arg_image_policy,
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DISSECT_IMAGE_GENERIC_ROOT |
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DISSECT_IMAGE_REQUIRE_ROOT |
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DISSECT_IMAGE_RELAX_VAR_CHECK |
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DISSECT_IMAGE_VALIDATE_OS |
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DISSECT_IMAGE_ALLOW_USERSPACE_VERITY,
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&mounted_dir,
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/* ret_dir_fd= */ NULL,
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&loop_device);
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if (r < 0)
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return r;
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arg_root = strdup(mounted_dir);
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if (!arg_root)
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return log_oom();
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}
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switch (arg_action) {
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case ACTION_SYSTEMCTL:
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r = systemctl_main(argc, argv);
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break;
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/* Legacy command aliases set arg_action. They provide some fallbacks, e.g. to tell sysvinit to
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* reboot after you have installed systemd binaries. */
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case ACTION_HALT:
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case ACTION_POWEROFF:
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case ACTION_REBOOT:
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case ACTION_KEXEC:
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r = halt_main();
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break;
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case ACTION_CANCEL_SHUTDOWN:
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r = logind_cancel_shutdown();
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break;
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case ACTION_SHOW_SHUTDOWN:
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case ACTION_SYSTEMCTL_SHOW_SHUTDOWN:
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r = logind_show_shutdown();
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break;
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case ACTION_RESCUE:
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case ACTION_RELOAD:
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case ACTION_REEXEC:
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case ACTION_EXIT:
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case ACTION_SLEEP:
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case ACTION_SUSPEND:
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case ACTION_HIBERNATE:
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case ACTION_HYBRID_SLEEP:
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case ACTION_SUSPEND_THEN_HIBERNATE:
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case ACTION_EMERGENCY:
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case ACTION_DEFAULT:
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/* systemctl verbs with no equivalent in the legacy commands. These cannot appear in
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* arg_action. Fall through. */
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case _ACTION_INVALID:
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default:
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assert_not_reached();
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}
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finish:
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release_busses();
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/* Note that we return r here, not 0, so that we can implement the LSB-like return codes */
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return r;
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}
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DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);
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