/* SPDX-License-Identifier: LGPL-2.1+ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "sd-bus.h" #include "sd-daemon.h" #include "sd-event.h" #include "sd-login.h" #include "alloc-util.h" #include "bootspec.h" #include "bus-common-errors.h" #include "bus-error.h" #include "bus-message.h" #include "bus-unit-procs.h" #include "bus-unit-util.h" #include "bus-util.h" #include "bus-wait-for-jobs.h" #include "bus-wait-for-units.h" #include "cgroup-show.h" #include "cgroup-util.h" #include "copy.h" #include "cpu-set-util.h" #include "dirent-util.h" #include "dropin.h" #include "efivars.h" #include "env-util.h" #include "escape.h" #include "exec-util.h" #include "exit-status.h" #include "fd-util.h" #include "format-util.h" #include "fs-util.h" #include "glob-util.h" #include "hexdecoct.h" #include "hostname-util.h" #include "in-addr-util.h" #include "initreq.h" #include "install.h" #include "io-util.h" #include "journal-util.h" #include "list.h" #include "locale-util.h" #include "log.h" #include "logs-show.h" #include "macro.h" #include "main-func.h" #include "memory-util.h" #include "mkdir.h" #include "pager.h" #include "parse-util.h" #include "path-lookup.h" #include "path-util.h" #include "pretty-print.h" #include "proc-cmdline.h" #include "process-util.h" #include "reboot-util.h" #include "rlimit-util.h" #include "set.h" #include "sigbus.h" #include "signal-util.h" #include "socket-util.h" #include "sort-util.h" #include "spawn-ask-password-agent.h" #include "spawn-polkit-agent.h" #include "special.h" #include "stat-util.h" #include "string-table.h" #include "strv.h" #include "sysv-compat.h" #include "terminal-util.h" #include "tmpfile-util.h" #include "unit-def.h" #include "unit-file.h" #include "unit-name.h" #include "user-util.h" #include "utf8.h" #include "utmp-wtmp.h" #include "verbs.h" #include "virt.h" static char **arg_types = NULL; static char **arg_states = NULL; static char **arg_properties = NULL; static bool arg_all = false; static enum dependency { DEPENDENCY_FORWARD, DEPENDENCY_REVERSE, DEPENDENCY_AFTER, DEPENDENCY_BEFORE, _DEPENDENCY_MAX } arg_dependency = DEPENDENCY_FORWARD; static const char *arg_job_mode = "replace"; static UnitFileScope arg_scope = UNIT_FILE_SYSTEM; static bool arg_wait = false; static bool arg_no_block = false; static bool arg_no_legend = false; static PagerFlags arg_pager_flags = 0; static bool arg_no_wtmp = false; static bool arg_no_sync = false; static bool arg_no_wall = false; static bool arg_no_reload = false; static bool arg_value = false; static bool arg_show_types = false; static bool arg_ignore_inhibitors = false; static bool arg_dry_run = false; static bool arg_quiet = false; static bool arg_full = false; static bool arg_recursive = false; static bool arg_show_transaction = false; static int arg_force = 0; static bool arg_ask_password = false; static bool arg_runtime = false; static UnitFilePresetMode arg_preset_mode = UNIT_FILE_PRESET_FULL; static char **arg_wall = NULL; static const char *arg_kill_who = NULL; static int arg_signal = SIGTERM; static char *arg_root = NULL; static usec_t arg_when = 0; static enum action { ACTION_SYSTEMCTL, ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT, ACTION_KEXEC, ACTION_EXIT, ACTION_SUSPEND, ACTION_HIBERNATE, ACTION_HYBRID_SLEEP, ACTION_SUSPEND_THEN_HIBERNATE, ACTION_RUNLEVEL2, ACTION_RUNLEVEL3, ACTION_RUNLEVEL4, ACTION_RUNLEVEL5, ACTION_RESCUE, ACTION_EMERGENCY, ACTION_DEFAULT, ACTION_RELOAD, ACTION_REEXEC, ACTION_RUNLEVEL, ACTION_CANCEL_SHUTDOWN, _ACTION_MAX, _ACTION_INVALID = -1 } arg_action = ACTION_SYSTEMCTL; static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; static const char *arg_host = NULL; static unsigned arg_lines = 10; static OutputMode arg_output = OUTPUT_SHORT; static bool arg_plain = false; static bool arg_firmware_setup = false; static usec_t arg_boot_loader_menu = USEC_INFINITY; static const char *arg_boot_loader_entry = NULL; static bool arg_now = false; static bool arg_jobs_before = false; static bool arg_jobs_after = false; static char **arg_clean_what = NULL; /* This is a global cache that will be constructed on first use. */ static Hashmap *cached_id_map = NULL; static Hashmap *cached_name_map = NULL; 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_DESTRUCTOR_REGISTER(cached_id_map, hashmap_freep); STATIC_DESTRUCTOR_REGISTER(cached_name_map, hashmap_freep); static int daemon_reload(int argc, char *argv[], void* userdata); static int trivial_method(int argc, char *argv[], void *userdata); static int halt_now(enum action a); static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state); static bool original_stdout_is_tty; typedef enum BusFocus { BUS_FULL, /* The full bus indicated via --system or --user */ BUS_MANAGER, /* The manager itself, possibly directly, possibly via the bus */ _BUS_FOCUS_MAX } BusFocus; static sd_bus *buses[_BUS_FOCUS_MAX] = {}; static UnitFileFlags args_to_flags(void) { return (arg_runtime ? UNIT_FILE_RUNTIME : 0) | (arg_force ? UNIT_FILE_FORCE : 0); } static int acquire_bus(BusFocus focus, sd_bus **ret) { int r; assert(focus < _BUS_FOCUS_MAX); assert(ret); /* We only go directly to the manager, if we are using a local transport */ if (arg_transport != BUS_TRANSPORT_LOCAL) focus = BUS_FULL; if (getenv_bool("SYSTEMCTL_FORCE_BUS") > 0) focus = BUS_FULL; if (!buses[focus]) { bool user; user = arg_scope != UNIT_FILE_SYSTEM; if (focus == BUS_MANAGER) r = bus_connect_transport_systemd(arg_transport, arg_host, user, &buses[focus]); else r = bus_connect_transport(arg_transport, arg_host, user, &buses[focus]); if (r < 0) return log_error_errno(r, "Failed to connect to bus: %m"); (void) sd_bus_set_allow_interactive_authorization(buses[focus], arg_ask_password); } *ret = buses[focus]; return 0; } static void release_busses(void) { BusFocus w; for (w = 0; w < _BUS_FOCUS_MAX; w++) buses[w] = sd_bus_flush_close_unref(buses[w]); } static void ask_password_agent_open_if_enabled(void) { /* Open the password agent as a child process if necessary */ if (arg_dry_run) return; if (!arg_ask_password) return; if (arg_scope != UNIT_FILE_SYSTEM) return; if (arg_transport != BUS_TRANSPORT_LOCAL) return; ask_password_agent_open(); } static void polkit_agent_open_maybe(void) { /* Open the polkit agent as a child process if necessary */ if (arg_scope != UNIT_FILE_SYSTEM) return; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); } static OutputFlags get_output_flags(void) { return arg_all * OUTPUT_SHOW_ALL | (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH | colors_enabled() * OUTPUT_COLOR | !arg_quiet * OUTPUT_WARN_CUTOFF; } static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) { assert(error); if (!sd_bus_error_is_set(error)) return r; if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) || sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) || sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) || sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE)) return EXIT_NOPERMISSION; if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT)) return EXIT_NOTINSTALLED; if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) || sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED)) return EXIT_NOTIMPLEMENTED; if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) return EXIT_NOTCONFIGURED; if (r != 0) return r; return EXIT_FAILURE; } static bool install_client_side(void) { /* Decides when to execute enable/disable/... operations * client-side rather than server-side. */ if (running_in_chroot_or_offline()) return true; if (sd_booted() <= 0) return true; if (!isempty(arg_root)) return true; if (arg_scope == UNIT_FILE_GLOBAL) return true; /* Unsupported environment variable, mostly for debugging purposes */ if (getenv_bool("SYSTEMCTL_INSTALL_CLIENT_SIDE") > 0) return true; return false; } static int compare_unit_info(const UnitInfo *a, const UnitInfo *b) { const char *d1, *d2; int r; /* First, order by machine */ if (!a->machine && b->machine) return -1; if (a->machine && !b->machine) return 1; if (a->machine && b->machine) { r = strcasecmp(a->machine, b->machine); if (r != 0) return r; } /* Second, order by unit type */ d1 = strrchr(a->id, '.'); d2 = strrchr(b->id, '.'); if (d1 && d2) { r = strcasecmp(d1, d2); if (r != 0) return r; } /* Third, order by name */ return strcasecmp(a->id, b->id); } static const char* unit_type_suffix(const char *name) { const char *dot; dot = strrchr(name, '.'); if (!dot) return ""; return dot + 1; } static bool output_show_unit(const UnitInfo *u, char **patterns) { assert(u); if (!strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE)) return false; if (arg_types && !strv_find(arg_types, unit_type_suffix(u->id))) return false; if (arg_all) return true; /* Note that '--all' is not purely a state filter, but also a * filter that hides units that "follow" other units (which is * used for device units that appear under different names). */ if (!isempty(u->following)) return false; if (!strv_isempty(arg_states)) return true; /* By default show all units except the ones in inactive * state and with no pending job */ if (u->job_id > 0) return true; if (streq(u->active_state, "inactive")) return false; return true; } static int output_units_list(const UnitInfo *unit_infos, unsigned c) { unsigned circle_len = 0, id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len, max_desc_len; const UnitInfo *u; unsigned n_shown = 0; int job_count = 0; bool full = arg_full || FLAGS_SET(arg_pager_flags, PAGER_DISABLE); max_id_len = STRLEN("UNIT"); load_len = STRLEN("LOAD"); active_len = STRLEN("ACTIVE"); sub_len = STRLEN("SUB"); job_len = STRLEN("JOB"); max_desc_len = STRLEN("DESCRIPTION"); for (u = unit_infos; u < unit_infos + c; u++) { max_id_len = MAX(max_id_len, strlen(u->id) + (u->machine ? strlen(u->machine)+1 : 0)); load_len = MAX(load_len, strlen(u->load_state)); active_len = MAX(active_len, strlen(u->active_state)); sub_len = MAX(sub_len, strlen(u->sub_state)); max_desc_len = MAX(max_desc_len, strlen(u->description)); if (u->job_id != 0) { job_len = MAX(job_len, strlen(u->job_type)); job_count++; } if (!arg_no_legend && (streq(u->active_state, "failed") || STR_IN_SET(u->load_state, "error", "not-found", "bad-setting", "masked"))) circle_len = 2; } if (!arg_full && original_stdout_is_tty) { unsigned basic_len; id_len = MIN(max_id_len, 25u); /* as much as it needs, but at most 25 for now */ basic_len = circle_len + 1 + id_len + 1 + load_len + 1 + active_len + 1 + sub_len + 1; if (job_count) basic_len += job_len + 1; if (basic_len < (unsigned) columns()) { unsigned extra_len, incr; extra_len = columns() - basic_len; /* Either UNIT already got 25, or is fully satisfied. * Grant up to 25 to DESC now. */ incr = MIN(extra_len, 25u); desc_len = incr; extra_len -= incr; /* Of the remainder give as much as the ID needs to the ID, and give the rest to the * description but not more than it needs. */ if (extra_len > 0) { incr = MIN(max_id_len - id_len, extra_len); id_len += incr; desc_len += MIN(extra_len - incr, max_desc_len - desc_len); } } else desc_len = 0; } else { id_len = max_id_len; desc_len = max_desc_len; } for (u = unit_infos; u < unit_infos + c; u++) { _cleanup_free_ char *e = NULL, *j = NULL; const char *on_underline = "", *off_underline = ""; const char *on_loaded = "", *off_loaded = ""; const char *on_active = "", *off_active = ""; const char *on_circle = "", *off_circle = ""; const char *id; bool circle = false, underline = false; if (!n_shown && !arg_no_legend) { if (circle_len > 0) fputs(" ", stdout); printf("%s%-*s %-*s %-*s %-*s ", ansi_underline(), id_len, "UNIT", load_len, "LOAD", active_len, "ACTIVE", sub_len, "SUB"); if (job_count) printf("%-*s ", job_len, "JOB"); printf("%-*.*s%s\n", desc_len, full ? -1 : (int) desc_len, "DESCRIPTION", ansi_normal()); } n_shown++; if (u + 1 < unit_infos + c && !streq(unit_type_suffix(u->id), unit_type_suffix((u + 1)->id))) { on_underline = ansi_underline(); off_underline = ansi_normal(); underline = true; } if (STR_IN_SET(u->load_state, "error", "not-found", "bad-setting", "masked") && !arg_plain) { on_circle = ansi_highlight_yellow(); off_circle = ansi_normal(); circle = true; on_loaded = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); off_loaded = underline ? on_underline : ansi_normal(); } else if (streq(u->active_state, "failed") && !arg_plain) { on_circle = ansi_highlight_red(); off_circle = ansi_normal(); circle = true; on_active = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); off_active = underline ? on_underline : ansi_normal(); } if (u->machine) { j = strjoin(u->machine, ":", u->id); if (!j) return log_oom(); id = j; } else id = u->id; if (arg_full) { e = ellipsize(id, id_len, 33); if (!e) return log_oom(); id = e; } if (circle_len > 0) printf("%s%s%s ", on_circle, circle ? special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE) : " ", off_circle); printf("%s%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s", on_underline, on_active, id_len, id, off_active, on_loaded, load_len, u->load_state, off_loaded, on_active, active_len, u->active_state, sub_len, u->sub_state, off_active, job_count ? job_len + 1 : 0, u->job_id ? u->job_type : ""); printf("%-*.*s%s\n", desc_len, full ? -1 : (int) desc_len, u->description, off_underline); } if (!arg_no_legend) { const char *on, *off; if (n_shown) { puts("\n" "LOAD = Reflects whether the unit definition was properly loaded.\n" "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n" "SUB = The low-level unit activation state, values depend on unit type."); puts(job_count ? "JOB = Pending job for the unit.\n" : ""); on = ansi_highlight(); off = ansi_normal(); } else { on = ansi_highlight_red(); off = ansi_normal(); } if (arg_all || strv_contains(arg_states, "inactive")) printf("%s%u loaded units listed.%s\n" "To show all installed unit files use 'systemctl list-unit-files'.\n", on, n_shown, off); else if (!arg_states) printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n" "To show all installed unit files use 'systemctl list-unit-files'.\n", on, n_shown, off); else printf("%u loaded units listed.\n", n_shown); } return 0; } static int get_unit_list( sd_bus *bus, const char *machine, char **patterns, UnitInfo **unit_infos, int c, sd_bus_message **_reply) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; size_t size = c; int r; UnitInfo u; bool fallback = false; assert(bus); assert(unit_infos); assert(_reply); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListUnitsByPatterns"); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, arg_states); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, patterns); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, &reply); if (r < 0 && (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD) || sd_bus_error_has_name(&error, SD_BUS_ERROR_ACCESS_DENIED))) { /* Fallback to legacy ListUnitsFiltered method */ fallback = true; log_debug_errno(r, "Failed to list units: %s Falling back to ListUnitsFiltered method.", bus_error_message(&error, r)); m = sd_bus_message_unref(m); sd_bus_error_free(&error); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListUnitsFiltered"); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, arg_states); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, &reply); } if (r < 0) return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)"); if (r < 0) return bus_log_parse_error(r); while ((r = bus_parse_unit_info(reply, &u)) > 0) { u.machine = machine; if (!output_show_unit(&u, fallback ? patterns : NULL)) continue; if (!GREEDY_REALLOC(*unit_infos, size, c+1)) return log_oom(); (*unit_infos)[c++] = u; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); *_reply = TAKE_PTR(reply); return c; } static void message_set_freep(Set **set) { set_free_with_destructor(*set, sd_bus_message_unref); } static int get_unit_list_recursive( sd_bus *bus, char **patterns, UnitInfo **_unit_infos, Set **_replies, char ***_machines) { _cleanup_free_ UnitInfo *unit_infos = NULL; _cleanup_(message_set_freep) Set *replies; sd_bus_message *reply; int c, r; assert(bus); assert(_replies); assert(_unit_infos); assert(_machines); replies = set_new(NULL); if (!replies) return log_oom(); c = get_unit_list(bus, NULL, patterns, &unit_infos, 0, &reply); if (c < 0) return c; r = set_put(replies, reply); if (r < 0) { sd_bus_message_unref(reply); return log_oom(); } if (arg_recursive) { _cleanup_strv_free_ char **machines = NULL; char **i; r = sd_get_machine_names(&machines); if (r < 0) return log_error_errno(r, "Failed to get machine names: %m"); STRV_FOREACH(i, machines) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL; int k; r = sd_bus_open_system_machine(&container, *i); if (r < 0) { log_warning_errno(r, "Failed to connect to container %s, ignoring: %m", *i); continue; } k = get_unit_list(container, *i, patterns, &unit_infos, c, &reply); if (k < 0) return k; c = k; r = set_put(replies, reply); if (r < 0) { sd_bus_message_unref(reply); return log_oom(); } } *_machines = TAKE_PTR(machines); } else *_machines = NULL; *_unit_infos = TAKE_PTR(unit_infos); *_replies = TAKE_PTR(replies); return c; } static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) { _cleanup_strv_free_ char **mangled = NULL, **globs = NULL; char **name; int r, i; assert(bus); assert(ret); STRV_FOREACH(name, names) { char *t; UnitNameMangle options = UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN); if (suffix) r = unit_name_mangle_with_suffix(*name, options, suffix, &t); else r = unit_name_mangle(*name, options, &t); if (r < 0) return log_error_errno(r, "Failed to mangle name: %m"); if (string_is_glob(t)) r = strv_consume(&globs, t); else r = strv_consume(&mangled, t); if (r < 0) return log_oom(); } /* Query the manager only if any of the names are a glob, since * this is fairly expensive */ if (!strv_isempty(globs)) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; size_t allocated, n; r = get_unit_list(bus, NULL, globs, &unit_infos, 0, &reply); if (r < 0) return r; n = strv_length(mangled); allocated = n + 1; for (i = 0; i < r; i++) { if (!GREEDY_REALLOC(mangled, allocated, n+2)) return log_oom(); mangled[n] = strdup(unit_infos[i].id); if (!mangled[n]) return log_oom(); mangled[++n] = NULL; } } *ret = TAKE_PTR(mangled); return 0; } static int list_units(int argc, char *argv[], void *userdata) { _cleanup_free_ UnitInfo *unit_infos = NULL; _cleanup_(message_set_freep) Set *replies = NULL; _cleanup_strv_free_ char **machines = NULL; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; (void) pager_open(arg_pager_flags); r = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines); if (r < 0) return r; typesafe_qsort(unit_infos, r, compare_unit_info); return output_units_list(unit_infos, r); } static int get_triggered_units( sd_bus *bus, const char* path, char*** ret) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(path); assert(ret); r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Unit", "Triggers", &error, ret); if (r < 0) return log_error_errno(r, "Failed to determine triggers: %s", bus_error_message(&error, r)); return 0; } static int get_listening( sd_bus *bus, const char* unit_path, char*** listening) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *type, *path; int r, n = 0; r = sd_bus_get_property( bus, "org.freedesktop.systemd1", unit_path, "org.freedesktop.systemd1.Socket", "Listen", &error, &reply, "a(ss)"); if (r < 0) return log_error_errno(r, "Failed to get list of listening sockets: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) { r = strv_extend(listening, type); if (r < 0) return log_oom(); r = strv_extend(listening, path); if (r < 0) return log_oom(); n++; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return n; } struct socket_info { const char *machine; const char* id; char* type; char* path; /* Note: triggered is a list here, although it almost certainly * will always be one unit. Nevertheless, dbus API allows for multiple * values, so let's follow that. */ char** triggered; /* The strv above is shared. free is set only in the first one. */ bool own_triggered; }; static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) { int r; assert(a); assert(b); if (!a->machine && b->machine) return -1; if (a->machine && !b->machine) return 1; if (a->machine && b->machine) { r = strcasecmp(a->machine, b->machine); if (r != 0) return r; } r = strcmp(a->path, b->path); if (r == 0) r = strcmp(a->type, b->type); return r; } static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) { struct socket_info *s; unsigned pathlen = STRLEN("LISTEN"), typelen = STRLEN("TYPE") * arg_show_types, socklen = STRLEN("UNIT"), servlen = STRLEN("ACTIVATES"); const char *on, *off; for (s = socket_infos; s < socket_infos + cs; s++) { unsigned tmp = 0; char **a; socklen = MAX(socklen, strlen(s->id)); if (arg_show_types) typelen = MAX(typelen, strlen(s->type)); pathlen = MAX(pathlen, strlen(s->path) + (s->machine ? strlen(s->machine)+1 : 0)); STRV_FOREACH(a, s->triggered) tmp += strlen(*a) + 2*(a != s->triggered); servlen = MAX(servlen, tmp); } if (cs) { if (!arg_no_legend) printf("%-*s %-*.*s%-*s %s\n", pathlen, "LISTEN", typelen + arg_show_types, typelen + arg_show_types, "TYPE ", socklen, "UNIT", "ACTIVATES"); for (s = socket_infos; s < socket_infos + cs; s++) { _cleanup_free_ char *j = NULL; const char *path; char **a; if (s->machine) { j = strjoin(s->machine, ":", s->path); if (!j) return log_oom(); path = j; } else path = s->path; if (arg_show_types) printf("%-*s %-*s %-*s", pathlen, path, typelen, s->type, socklen, s->id); else printf("%-*s %-*s", pathlen, path, socklen, s->id); STRV_FOREACH(a, s->triggered) printf("%s %s", a == s->triggered ? "" : ",", *a); printf("\n"); } on = ansi_highlight(); off = ansi_normal(); if (!arg_no_legend) printf("\n"); } else { on = ansi_highlight_red(); off = ansi_normal(); } if (!arg_no_legend) { printf("%s%u sockets listed.%s\n", on, cs, off); if (!arg_all) printf("Pass --all to see loaded but inactive sockets, too.\n"); } return 0; } static int list_sockets(int argc, char *argv[], void *userdata) { _cleanup_(message_set_freep) Set *replies = NULL; _cleanup_strv_free_ char **machines = NULL; _cleanup_strv_free_ char **sockets_with_suffix = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; _cleanup_free_ struct socket_info *socket_infos = NULL; const UnitInfo *u; struct socket_info *s; unsigned cs = 0; size_t size = 0; int r = 0, n; sd_bus *bus; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; (void) pager_open(arg_pager_flags); r = expand_names(bus, strv_skip(argv, 1), ".socket", &sockets_with_suffix); if (r < 0) return r; if (argc == 1 || sockets_with_suffix) { n = get_unit_list_recursive(bus, sockets_with_suffix, &unit_infos, &replies, &machines); if (n < 0) return n; for (u = unit_infos; u < unit_infos + n; u++) { _cleanup_strv_free_ char **listening = NULL, **triggered = NULL; int i, c; if (!endswith(u->id, ".socket")) continue; r = get_triggered_units(bus, u->unit_path, &triggered); if (r < 0) goto cleanup; c = get_listening(bus, u->unit_path, &listening); if (c < 0) { r = c; goto cleanup; } if (!GREEDY_REALLOC(socket_infos, size, cs + c)) { r = log_oom(); goto cleanup; } for (i = 0; i < c; i++) socket_infos[cs + i] = (struct socket_info) { .machine = u->machine, .id = u->id, .type = listening[i*2], .path = listening[i*2 + 1], .triggered = triggered, .own_triggered = i==0, }; /* from this point on we will cleanup those socket_infos */ cs += c; free(listening); listening = triggered = NULL; /* avoid cleanup */ } typesafe_qsort(socket_infos, cs, socket_info_compare); } output_sockets_list(socket_infos, cs); cleanup: assert(cs == 0 || socket_infos); for (s = socket_infos; s < socket_infos + cs; s++) { free(s->type); free(s->path); if (s->own_triggered) strv_free(s->triggered); } return r; } static int get_next_elapse( sd_bus *bus, const char *path, dual_timestamp *next) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; dual_timestamp t; int r; assert(bus); assert(path); assert(next); r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Timer", "NextElapseUSecMonotonic", &error, 't', &t.monotonic); if (r < 0) return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r)); r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Timer", "NextElapseUSecRealtime", &error, 't', &t.realtime); if (r < 0) return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r)); *next = t; return 0; } static int get_last_trigger( sd_bus *bus, const char *path, usec_t *last) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(path); assert(last); r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Timer", "LastTriggerUSec", &error, 't', last); if (r < 0) return log_error_errno(r, "Failed to get last trigger time: %s", bus_error_message(&error, r)); return 0; } struct timer_info { const char* machine; const char* id; usec_t next_elapse; usec_t last_trigger; char** triggered; }; static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) { int r; assert(a); assert(b); if (!a->machine && b->machine) return -1; if (a->machine && !b->machine) return 1; if (a->machine && b->machine) { r = strcasecmp(a->machine, b->machine); if (r != 0) return r; } r = CMP(a->next_elapse, b->next_elapse); if (r != 0) return r; return strcmp(a->id, b->id); } static int output_timers_list(struct timer_info *timer_infos, unsigned n) { struct timer_info *t; unsigned nextlen = STRLEN("NEXT"), leftlen = STRLEN("LEFT"), lastlen = STRLEN("LAST"), passedlen = STRLEN("PASSED"), unitlen = STRLEN("UNIT"), activatelen = STRLEN("ACTIVATES"); const char *on, *off; assert(timer_infos || n == 0); for (t = timer_infos; t < timer_infos + n; t++) { unsigned ul = 0; char **a; if (t->next_elapse > 0) { char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = ""; format_timestamp(tstamp, sizeof(tstamp), t->next_elapse); nextlen = MAX(nextlen, strlen(tstamp) + 1); format_timestamp_relative(trel, sizeof(trel), t->next_elapse); leftlen = MAX(leftlen, strlen(trel)); } if (t->last_trigger > 0) { char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = ""; format_timestamp(tstamp, sizeof(tstamp), t->last_trigger); lastlen = MAX(lastlen, strlen(tstamp) + 1); format_timestamp_relative(trel, sizeof(trel), t->last_trigger); passedlen = MAX(passedlen, strlen(trel)); } unitlen = MAX(unitlen, strlen(t->id) + (t->machine ? strlen(t->machine)+1 : 0)); STRV_FOREACH(a, t->triggered) ul += strlen(*a) + 2*(a != t->triggered); activatelen = MAX(activatelen, ul); } if (n > 0) { if (!arg_no_legend) printf("%-*s %-*s %-*s %-*s %-*s %s\n", nextlen, "NEXT", leftlen, "LEFT", lastlen, "LAST", passedlen, "PASSED", unitlen, "UNIT", "ACTIVATES"); for (t = timer_infos; t < timer_infos + n; t++) { _cleanup_free_ char *j = NULL; const char *unit; char tstamp1[FORMAT_TIMESTAMP_MAX] = "n/a", trel1[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a"; char tstamp2[FORMAT_TIMESTAMP_MAX] = "n/a", trel2[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a"; char **a; format_timestamp(tstamp1, sizeof(tstamp1), t->next_elapse); format_timestamp_relative(trel1, sizeof(trel1), t->next_elapse); format_timestamp(tstamp2, sizeof(tstamp2), t->last_trigger); format_timestamp_relative(trel2, sizeof(trel2), t->last_trigger); if (t->machine) { j = strjoin(t->machine, ":", t->id); if (!j) return log_oom(); unit = j; } else unit = t->id; printf("%-*s %-*s %-*s %-*s %-*s", nextlen, tstamp1, leftlen, trel1, lastlen, tstamp2, passedlen, trel2, unitlen, unit); STRV_FOREACH(a, t->triggered) printf("%s %s", a == t->triggered ? "" : ",", *a); printf("\n"); } on = ansi_highlight(); off = ansi_normal(); if (!arg_no_legend) printf("\n"); } else { on = ansi_highlight_red(); off = ansi_normal(); } if (!arg_no_legend) { printf("%s%u timers listed.%s\n", on, n, off); if (!arg_all) printf("Pass --all to see loaded but inactive timers, too.\n"); } return 0; } static usec_t calc_next_elapse(dual_timestamp *nw, dual_timestamp *next) { usec_t next_elapse; assert(nw); assert(next); if (timestamp_is_set(next->monotonic)) { usec_t converted; if (next->monotonic > nw->monotonic) converted = nw->realtime + (next->monotonic - nw->monotonic); else converted = nw->realtime - (nw->monotonic - next->monotonic); if (timestamp_is_set(next->realtime)) next_elapse = MIN(converted, next->realtime); else next_elapse = converted; } else next_elapse = next->realtime; return next_elapse; } static int list_timers(int argc, char *argv[], void *userdata) { _cleanup_(message_set_freep) Set *replies = NULL; _cleanup_strv_free_ char **machines = NULL; _cleanup_strv_free_ char **timers_with_suffix = NULL; _cleanup_free_ struct timer_info *timer_infos = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; struct timer_info *t; const UnitInfo *u; size_t size = 0; int n, c = 0; dual_timestamp nw; sd_bus *bus; int r = 0; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; (void) pager_open(arg_pager_flags); r = expand_names(bus, strv_skip(argv, 1), ".timer", &timers_with_suffix); if (r < 0) return r; if (argc == 1 || timers_with_suffix) { n = get_unit_list_recursive(bus, timers_with_suffix, &unit_infos, &replies, &machines); if (n < 0) return n; dual_timestamp_get(&nw); for (u = unit_infos; u < unit_infos + n; u++) { _cleanup_strv_free_ char **triggered = NULL; dual_timestamp next = DUAL_TIMESTAMP_NULL; usec_t m, last = 0; if (!endswith(u->id, ".timer")) continue; r = get_triggered_units(bus, u->unit_path, &triggered); if (r < 0) goto cleanup; r = get_next_elapse(bus, u->unit_path, &next); if (r < 0) goto cleanup; get_last_trigger(bus, u->unit_path, &last); if (!GREEDY_REALLOC(timer_infos, size, c+1)) { r = log_oom(); goto cleanup; } m = calc_next_elapse(&nw, &next); timer_infos[c++] = (struct timer_info) { .machine = u->machine, .id = u->id, .next_elapse = m, .last_trigger = last, .triggered = TAKE_PTR(triggered), }; } typesafe_qsort(timer_infos, c, timer_info_compare); } output_timers_list(timer_infos, c); cleanup: for (t = timer_infos; t < timer_infos + c; t++) strv_free(t->triggered); return r; } static int compare_unit_file_list(const UnitFileList *a, const UnitFileList *b) { const char *d1, *d2; d1 = strrchr(a->path, '.'); d2 = strrchr(b->path, '.'); if (d1 && d2) { int r; r = strcasecmp(d1, d2); if (r != 0) return r; } return strcasecmp(basename(a->path), basename(b->path)); } static bool output_show_unit_file(const UnitFileList *u, char **states, char **patterns) { assert(u); if (!strv_fnmatch_or_empty(patterns, basename(u->path), FNM_NOESCAPE)) return false; if (!strv_isempty(arg_types)) { const char *dot; dot = strrchr(u->path, '.'); if (!dot) return false; if (!strv_find(arg_types, dot+1)) return false; } if (!strv_isempty(states) && !strv_find(states, unit_file_state_to_string(u->state))) return false; return true; } static void output_unit_file_list(const UnitFileList *units, unsigned c) { unsigned max_id_len, id_cols, state_cols; const UnitFileList *u; max_id_len = STRLEN("UNIT FILE"); state_cols = STRLEN("STATE"); for (u = units; u < units + c; u++) { max_id_len = MAX(max_id_len, strlen(basename(u->path))); state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state))); } if (!arg_full) { unsigned basic_cols; id_cols = MIN(max_id_len, 25u); basic_cols = 1 + id_cols + state_cols; if (basic_cols < (unsigned) columns()) id_cols += MIN(columns() - basic_cols, max_id_len - id_cols); } else id_cols = max_id_len; if (!arg_no_legend && c > 0) printf("%s%-*s %-*s%s\n", ansi_underline(), id_cols, "UNIT FILE", state_cols, "STATE", ansi_normal()); for (u = units; u < units + c; u++) { const char *on_underline = NULL, *on_color = NULL, *off = NULL, *id; _cleanup_free_ char *e = NULL; bool underline; underline = u + 1 < units + c && !streq(unit_type_suffix(u->path), unit_type_suffix((u + 1)->path)); if (underline) on_underline = ansi_underline(); if (IN_SET(u->state, UNIT_FILE_MASKED, UNIT_FILE_MASKED_RUNTIME, UNIT_FILE_DISABLED, UNIT_FILE_BAD)) on_color = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); else if (u->state == UNIT_FILE_ENABLED) on_color = underline ? ansi_highlight_green_underline() : ansi_highlight_green(); if (on_underline || on_color) off = ansi_normal(); id = basename(u->path); e = arg_full ? NULL : ellipsize(id, id_cols, 33); printf("%s%-*s %s%-*s%s\n", strempty(on_underline), id_cols, e ? e : id, strempty(on_color), state_cols, unit_file_state_to_string(u->state), strempty(off)); } if (!arg_no_legend) printf("\n%u unit files listed.\n", c); } static int list_unit_files(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ UnitFileList *units = NULL; UnitFileList *unit; size_t size = 0; unsigned c = 0; const char *state; char *path; int r; bool fallback = false; if (install_client_side()) { Hashmap *h; UnitFileList *u; Iterator i; unsigned n_units; h = hashmap_new(&string_hash_ops); if (!h) return log_oom(); r = unit_file_get_list(arg_scope, arg_root, h, arg_states, strv_skip(argv, 1)); if (r < 0) { unit_file_list_free(h); return log_error_errno(r, "Failed to get unit file list: %m"); } n_units = hashmap_size(h); units = new(UnitFileList, n_units ?: 1); /* avoid malloc(0) */ if (!units) { unit_file_list_free(h); return log_oom(); } HASHMAP_FOREACH(u, h, i) { if (!output_show_unit_file(u, NULL, NULL)) continue; units[c++] = *u; free(u); } assert(c <= n_units); hashmap_free(h); r = 0; } else { _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListUnitFilesByPatterns"); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, arg_states); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, strv_skip(argv, 1)); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, &reply); if (r < 0 && sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)) { /* Fallback to legacy ListUnitFiles method */ fallback = true; log_debug_errno(r, "Failed to list unit files: %s Falling back to ListUnitsFiles method.", bus_error_message(&error, r)); m = sd_bus_message_unref(m); sd_bus_error_free(&error); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListUnitFiles"); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, &reply); } if (r < 0) return log_error_errno(r, "Failed to list unit files: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) { if (!GREEDY_REALLOC(units, size, c + 1)) return log_oom(); units[c] = (struct UnitFileList) { path, unit_file_state_from_string(state) }; if (output_show_unit_file(&units[c], fallback ? arg_states : NULL, fallback ? strv_skip(argv, 1) : NULL)) c++; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); } (void) pager_open(arg_pager_flags); typesafe_qsort(units, c, compare_unit_file_list); output_unit_file_list(units, c); if (install_client_side()) for (unit = units; unit < units + c; unit++) free(unit->path); return 0; } static int list_dependencies_print(const char *name, int level, unsigned branches, bool last) { _cleanup_free_ char *n = NULL; size_t max_len = MAX(columns(),20u); size_t len = 0; int i; if (!arg_plain) { for (i = level - 1; i >= 0; i--) { len += 2; if (len > max_len - 3 && !arg_full) { printf("%s...\n",max_len % 2 ? "" : " "); return 0; } printf("%s", special_glyph(branches & (1 << i) ? SPECIAL_GLYPH_TREE_VERTICAL : SPECIAL_GLYPH_TREE_SPACE)); } len += 2; if (len > max_len - 3 && !arg_full) { printf("%s...\n",max_len % 2 ? "" : " "); return 0; } printf("%s", special_glyph(last ? SPECIAL_GLYPH_TREE_RIGHT : SPECIAL_GLYPH_TREE_BRANCH)); } if (arg_full) { printf("%s\n", name); return 0; } n = ellipsize(name, max_len-len, 100); if (!n) return log_oom(); printf("%s\n", n); return 0; } static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) { struct DependencyStatusInfo { char **dep[5]; } info = {}; static const struct bus_properties_map map[_DEPENDENCY_MAX][6] = { [DEPENDENCY_FORWARD] = { { "Requires", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) }, { "Requisite", "as", NULL, offsetof(struct DependencyStatusInfo, dep[1]) }, { "Wants", "as", NULL, offsetof(struct DependencyStatusInfo, dep[2]) }, { "ConsistsOf", "as", NULL, offsetof(struct DependencyStatusInfo, dep[3]) }, { "BindsTo", "as", NULL, offsetof(struct DependencyStatusInfo, dep[4]) }, {} }, [DEPENDENCY_REVERSE] = { { "RequiredBy", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) }, { "RequisiteOf", "as", NULL, offsetof(struct DependencyStatusInfo, dep[1]) }, { "WantedBy", "as", NULL, offsetof(struct DependencyStatusInfo, dep[2]) }, { "PartOf", "as", NULL, offsetof(struct DependencyStatusInfo, dep[3]) }, { "BoundBy", "as", NULL, offsetof(struct DependencyStatusInfo, dep[4]) }, {} }, [DEPENDENCY_AFTER] = { { "After", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) }, {} }, [DEPENDENCY_BEFORE] = { { "Before", "as", NULL, offsetof(struct DependencyStatusInfo, dep[0]) }, {} }, }; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_strv_free_ char **ret = NULL; _cleanup_free_ char *dbus_path = NULL; int i, r; assert(bus); assert(name); assert(deps); dbus_path = unit_dbus_path_from_name(name); if (!dbus_path) return log_oom(); r = bus_map_all_properties(bus, "org.freedesktop.systemd1", dbus_path, map[arg_dependency], BUS_MAP_STRDUP, &error, NULL, &info); if (r < 0) return log_error_errno(r, "Failed to get properties of %s: %s", name, bus_error_message(&error, r)); if (IN_SET(arg_dependency, DEPENDENCY_AFTER, DEPENDENCY_BEFORE)) { *deps = info.dep[0]; return 0; } for (i = 0; i < 5; i++) { r = strv_extend_strv(&ret, info.dep[i], true); if (r < 0) return log_oom(); info.dep[i] = strv_free(info.dep[i]); } *deps = TAKE_PTR(ret); return 0; } static int list_dependencies_compare(char * const *a, char * const *b) { if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET) return 1; if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET) return -1; return strcasecmp(*a, *b); } static int list_dependencies_one( sd_bus *bus, const char *name, int level, char ***units, unsigned branches) { _cleanup_strv_free_ char **deps = NULL; char **c; int r = 0; assert(bus); assert(name); assert(units); r = strv_extend(units, name); if (r < 0) return log_oom(); r = list_dependencies_get_dependencies(bus, name, &deps); if (r < 0) return r; typesafe_qsort(deps, strv_length(deps), list_dependencies_compare); STRV_FOREACH(c, deps) { if (strv_contains(*units, *c)) { if (!arg_plain) { printf(" "); r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1); if (r < 0) return r; } continue; } if (arg_plain) printf(" "); else { UnitActiveState active_state = _UNIT_ACTIVE_STATE_INVALID; const char *on; (void) get_state_one_unit(bus, *c, &active_state); switch (active_state) { case UNIT_ACTIVE: case UNIT_RELOADING: case UNIT_ACTIVATING: on = ansi_highlight_green(); break; case UNIT_INACTIVE: case UNIT_DEACTIVATING: on = ansi_normal(); break; default: on = ansi_highlight_red(); break; } printf("%s%s%s ", on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), ansi_normal()); } r = list_dependencies_print(*c, level, branches, c[1] == NULL); if (r < 0) return r; if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) { r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1)); if (r < 0) return r; } } if (!arg_plain) strv_remove(*units, name); return 0; } static int list_dependencies(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **units = NULL; _cleanup_free_ char *unit = NULL; const char *u; sd_bus *bus; int r; if (argv[1]) { r = unit_name_mangle(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &unit); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); u = unit; } else u = SPECIAL_DEFAULT_TARGET; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; (void) pager_open(arg_pager_flags); puts(u); return list_dependencies_one(bus, u, 0, &units, 0); } struct machine_info { bool is_host; char *name; char *state; char *control_group; uint32_t n_failed_units; uint32_t n_jobs; usec_t timestamp; }; static const struct bus_properties_map machine_info_property_map[] = { { "SystemState", "s", NULL, offsetof(struct machine_info, state) }, { "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) }, { "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) }, { "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) }, { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) }, {} }; static void machine_info_clear(struct machine_info *info) { assert(info); free(info->name); free(info->state); free(info->control_group); zero(*info); } static void free_machines_list(struct machine_info *machine_infos, int n) { int i; if (!machine_infos) return; for (i = 0; i < n; i++) machine_info_clear(&machine_infos[i]); free(machine_infos); } static int compare_machine_info(const struct machine_info *a, const struct machine_info *b) { int r; r = CMP(b->is_host, a->is_host); if (r != 0) return r; return strcasecmp(a->name, b->name); } static int get_machine_properties(sd_bus *bus, struct machine_info *mi) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL; int r; assert(mi); if (!bus) { r = sd_bus_open_system_machine(&container, mi->name); if (r < 0) return r; bus = container; } r = bus_map_all_properties( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, BUS_MAP_STRDUP, NULL, NULL, mi); if (r < 0) return r; return 0; } static bool output_show_machine(const char *name, char **patterns) { return strv_fnmatch_or_empty(patterns, name, FNM_NOESCAPE); } static int get_machine_list( sd_bus *bus, struct machine_info **_machine_infos, char **patterns) { struct machine_info *machine_infos = NULL; _cleanup_strv_free_ char **m = NULL; _cleanup_free_ char *hn = NULL; size_t sz = 0; char **i; int c = 0, r; hn = gethostname_malloc(); if (!hn) return log_oom(); if (output_show_machine(hn, patterns)) { if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) return log_oom(); machine_infos[c].is_host = true; machine_infos[c].name = TAKE_PTR(hn); (void) get_machine_properties(bus, &machine_infos[c]); c++; } r = sd_get_machine_names(&m); if (r < 0) return log_error_errno(r, "Failed to get machine list: %m"); STRV_FOREACH(i, m) { _cleanup_free_ char *class = NULL; if (!output_show_machine(*i, patterns)) continue; sd_machine_get_class(*i, &class); if (!streq_ptr(class, "container")) continue; if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) { free_machines_list(machine_infos, c); return log_oom(); } machine_infos[c].is_host = false; machine_infos[c].name = strdup(*i); if (!machine_infos[c].name) { free_machines_list(machine_infos, c); return log_oom(); } (void) get_machine_properties(NULL, &machine_infos[c]); c++; } *_machine_infos = machine_infos; return c; } static void output_machines_list(struct machine_info *machine_infos, unsigned n) { struct machine_info *m; unsigned circle_len = 0, namelen = STRLEN("NAME"), statelen = STRLEN("STATE"), failedlen = STRLEN("FAILED"), jobslen = STRLEN("JOBS"); bool state_missing = false; assert(machine_infos || n == 0); for (m = machine_infos; m < machine_infos + n; m++) { namelen = MAX(namelen, strlen(m->name) + (m->is_host ? STRLEN(" (host)") : 0)); statelen = MAX(statelen, strlen_ptr(m->state)); failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units)); jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs)); if (!arg_plain && m->state && !streq(m->state, "running")) circle_len = 2; } if (!arg_no_legend) { if (circle_len > 0) fputs(" ", stdout); printf("%-*s %-*s %-*s %-*s\n", namelen, "NAME", statelen, "STATE", failedlen, "FAILED", jobslen, "JOBS"); } for (m = machine_infos; m < machine_infos + n; m++) { const char *on_state = "", *off_state = ""; const char *on_failed = "", *off_failed = ""; bool circle = false; if (streq_ptr(m->state, "degraded")) { on_state = ansi_highlight_red(); off_state = ansi_normal(); circle = true; } else if (!streq_ptr(m->state, "running")) { on_state = ansi_highlight_yellow(); off_state = ansi_normal(); circle = true; } if (m->n_failed_units > 0) { on_failed = ansi_highlight_red(); off_failed = ansi_normal(); } else on_failed = off_failed = ""; if (circle_len > 0) printf("%s%s%s ", on_state, circle ? special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE) : " ", off_state); if (!m->state) state_missing = true; if (m->is_host) printf("%-*s (host) %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n", (int) (namelen - strlen(" (host)")), strna(m->name), on_state, statelen, strna(m->state), off_state, on_failed, failedlen, m->n_failed_units, off_failed, jobslen, m->n_jobs); else printf("%-*s %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n", namelen, strna(m->name), on_state, statelen, strna(m->state), off_state, on_failed, failedlen, m->n_failed_units, off_failed, jobslen, m->n_jobs); } if (!arg_no_legend) { printf("\n"); if (state_missing && geteuid() != 0) printf("Notice: some information only available to privileged users was not shown.\n"); printf("%u machines listed.\n", n); } } static int list_machines(int argc, char *argv[], void *userdata) { struct machine_info *machine_infos = NULL; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = get_machine_list(bus, &machine_infos, strv_skip(argv, 1)); if (r < 0) return r; (void) pager_open(arg_pager_flags); typesafe_qsort(machine_infos, r, compare_machine_info); output_machines_list(machine_infos, r); free_machines_list(machine_infos, r); return 0; } static int get_default(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ char *_path = NULL; const char *path; int r; if (install_client_side()) { r = unit_file_get_default(arg_scope, arg_root, &_path); if (r < 0) return log_error_errno(r, "Failed to get default target: %m"); path = _path; r = 0; } else { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GetDefaultTarget", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Failed to get default target: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "s", &path); if (r < 0) return bus_log_parse_error(r); } if (path) printf("%s\n", path); return 0; } static int set_default(int argc, char *argv[], void *userdata) { _cleanup_free_ char *unit = NULL; UnitFileChange *changes = NULL; size_t n_changes = 0; int r; assert(argc >= 2); assert(argv); r = unit_name_mangle_with_suffix(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".target", &unit); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); if (install_client_side()) { r = unit_file_set_default(arg_scope, UNIT_FILE_FORCE, arg_root, unit, &changes, &n_changes); unit_file_dump_changes(r, "set default", changes, n_changes, arg_quiet); if (r > 0) r = 0; } else { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; sd_bus *bus; polkit_agent_open_maybe(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SetDefaultTarget", &error, &reply, "sb", unit, 1); if (r < 0) return log_error_errno(r, "Failed to set default target: %s", bus_error_message(&error, r)); r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes); if (r < 0) goto finish; /* Try to reload if enabled */ if (!arg_no_reload) r = daemon_reload(argc, argv, userdata); else r = 0; } finish: unit_file_changes_free(changes, n_changes); return r; } static int output_waiting_jobs(sd_bus *bus, uint32_t id, const char *method, const char *prefix) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *name, *type; uint32_t other_id; int r; assert(bus); r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method, &error, &reply, "u", id); if (r < 0) return log_debug_errno(r, "Failed to get waiting jobs for job %" PRIu32, id); r = sd_bus_message_enter_container(reply, 'a', "(usssoo)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(usssoo)", &other_id, &name, &type, NULL, NULL, NULL)) > 0) printf("%s %u (%s/%s)\n", prefix, other_id, name, type); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return 0; } struct job_info { uint32_t id; const char *name, *type, *state; }; static void output_jobs_list(sd_bus *bus, const struct job_info* jobs, unsigned n, bool skipped) { unsigned id_len, unit_len, type_len, state_len; const struct job_info *j; const char *on, *off; bool shorten = false; assert(n == 0 || jobs); if (n == 0) { if (!arg_no_legend) { on = ansi_highlight_green(); off = ansi_normal(); printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off); } return; } (void) pager_open(arg_pager_flags); id_len = STRLEN("JOB"); unit_len = STRLEN("UNIT"); type_len = STRLEN("TYPE"); state_len = STRLEN("STATE"); for (j = jobs; j < jobs + n; j++) { uint32_t id = j->id; assert(j->name && j->type && j->state); id_len = MAX(id_len, DECIMAL_STR_WIDTH(id)); unit_len = MAX(unit_len, strlen(j->name)); type_len = MAX(type_len, strlen(j->type)); state_len = MAX(state_len, strlen(j->state)); } if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) { unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3); shorten = true; } if (!arg_no_legend) printf("%*s %-*s %-*s %-*s\n", id_len, "JOB", unit_len, "UNIT", type_len, "TYPE", state_len, "STATE"); for (j = jobs; j < jobs + n; j++) { _cleanup_free_ char *e = NULL; if (streq(j->state, "running")) { on = ansi_highlight(); off = ansi_normal(); } else on = off = ""; e = shorten ? ellipsize(j->name, unit_len, 33) : NULL; printf("%*u %s%-*s%s %-*s %s%-*s%s\n", id_len, j->id, on, unit_len, e ? e : j->name, off, type_len, j->type, on, state_len, j->state, off); if (arg_jobs_after) output_waiting_jobs(bus, j->id, "GetJobAfter", "\twaiting for job"); if (arg_jobs_before) output_waiting_jobs(bus, j->id, "GetJobBefore", "\tblocking job"); } if (!arg_no_legend) { on = ansi_highlight(); off = ansi_normal(); printf("\n%s%u jobs listed%s.\n", on, n, off); } } static bool output_show_job(struct job_info *job, char **patterns) { return strv_fnmatch_or_empty(patterns, job->name, FNM_NOESCAPE); } static int list_jobs(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ struct job_info *jobs = NULL; const char *name, *type, *state; bool skipped = false; size_t size = 0; unsigned c = 0; sd_bus *bus; uint32_t id; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ListJobs", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Failed to list jobs: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, 'a', "(usssoo)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, NULL, NULL)) > 0) { struct job_info job = { id, name, type, state }; if (!output_show_job(&job, strv_skip(argv, 1))) { skipped = true; continue; } if (!GREEDY_REALLOC(jobs, size, c + 1)) return log_oom(); jobs[c++] = job; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); (void) pager_open(arg_pager_flags); output_jobs_list(bus, jobs, c, skipped); return 0; } static int cancel_job(int argc, char *argv[], void *userdata) { sd_bus *bus; char **name; int r = 0; if (argc <= 1) return trivial_method(argc, argv, userdata); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; uint32_t id; int q; q = safe_atou32(*name, &id); if (q < 0) return log_error_errno(q, "Failed to parse job id \"%s\": %m", *name); q = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "CancelJob", &error, NULL, "u", id); if (q < 0) { log_error_errno(q, "Failed to cancel job %"PRIu32": %s", id, bus_error_message(&error, q)); if (r == 0) r = q; } } return r; } static int need_daemon_reload(sd_bus *bus, const char *unit) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *path; int b, r; /* We ignore all errors here, since this is used to show a * warning only */ /* We don't use unit_dbus_path_from_name() directly since we * don't want to load the unit if it isn't loaded. */ r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GetUnit", NULL, &reply, "s", unit); if (r < 0) return r; r = sd_bus_message_read(reply, "o", &path); if (r < 0) return r; r = sd_bus_get_property_trivial( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Unit", "NeedDaemonReload", NULL, 'b', &b); if (r < 0) return r; return b; } static void warn_unit_file_changed(const char *name) { assert(name); log_warning("%sWarning:%s The unit file, source configuration file or drop-ins of %s changed on disk. Run 'systemctl%s daemon-reload' to reload units.", ansi_highlight_red(), ansi_normal(), name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user"); } static int unit_file_find_path(LookupPaths *lp, const char *unit_name, char **ret_unit_path) { char **p; assert(lp); assert(unit_name); STRV_FOREACH(p, lp->search_path) { _cleanup_free_ char *path = NULL, *lpath = NULL; int r; path = path_join(*p, unit_name); if (!path) return log_oom(); r = chase_symlinks(path, arg_root, 0, &lpath); if (r == -ENOENT) continue; if (r == -ENOMEM) return log_oom(); if (r < 0) return log_error_errno(r, "Failed to access path \"%s\": %m", path); if (ret_unit_path) *ret_unit_path = TAKE_PTR(lpath); return 1; } if (ret_unit_path) *ret_unit_path = NULL; return 0; } static int unit_find_template_path( const char *unit_name, LookupPaths *lp, char **ret_fragment_path, char **ret_template) { _cleanup_free_ char *t = NULL, *f = NULL; int r; /* Returns 1 if a fragment was found, 0 if not found, negative on error. */ r = unit_file_find_path(lp, unit_name, &f); if (r < 0) return r; if (r > 0) { if (ret_fragment_path) *ret_fragment_path = TAKE_PTR(f); if (ret_template) *ret_template = NULL; return r; /* found a real unit */ } r = unit_name_template(unit_name, &t); if (r == -EINVAL) { if (ret_fragment_path) *ret_fragment_path = NULL; if (ret_template) *ret_template = NULL; return 0; /* not a template, does not exist */ } if (r < 0) return log_error_errno(r, "Failed to determine template name: %m"); r = unit_file_find_path(lp, t, ret_fragment_path); if (r < 0) return r; if (ret_template) *ret_template = r > 0 ? TAKE_PTR(t) : NULL; return r; } static int unit_find_paths( sd_bus *bus, const char *unit_name, LookupPaths *lp, bool force_client_side, char **ret_fragment_path, char ***ret_dropin_paths) { _cleanup_strv_free_ char **dropins = NULL; _cleanup_free_ char *path = NULL; int r; /** * Finds where the unit is defined on disk. Returns 0 if the unit is not found. Returns 1 if it is * found, and sets: * - the path to the unit in *ret_frament_path, if it exists on disk, * - and a strv of existing drop-ins in *ret_dropin_paths, if the arg is not NULL and any dropins * were found. * * Returns -ERFKILL if the unit is masked, and -EKEYREJECTED if the unit file could not be loaded for * some reason (the latter only applies if we are going through the service manager). */ assert(unit_name); assert(ret_fragment_path); assert(lp); /* Go via the bus to acquire the path, unless we are explicitly told not to, or when the unit name is a template */ if (!force_client_side && !install_client_side() && !unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *load_state = NULL, *dbus_path = NULL; dbus_path = unit_dbus_path_from_name(unit_name); if (!dbus_path) return log_oom(); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", dbus_path, "org.freedesktop.systemd1.Unit", "LoadState", &error, &load_state); if (r < 0) return log_error_errno(r, "Failed to get LoadState: %s", bus_error_message(&error, r)); if (streq(load_state, "masked")) return -ERFKILL; if (streq(load_state, "not-found")) { r = 0; goto not_found; } if (!STR_IN_SET(load_state, "loaded", "bad-setting")) return -EKEYREJECTED; r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", dbus_path, "org.freedesktop.systemd1.Unit", "FragmentPath", &error, &path); if (r < 0) return log_error_errno(r, "Failed to get FragmentPath: %s", bus_error_message(&error, r)); if (ret_dropin_paths) { r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", dbus_path, "org.freedesktop.systemd1.Unit", "DropInPaths", &error, &dropins); if (r < 0) return log_error_errno(r, "Failed to get DropInPaths: %s", bus_error_message(&error, r)); } } else { const char *_path; _cleanup_set_free_free_ Set *names = NULL; if (!cached_name_map) { r = unit_file_build_name_map(lp, NULL, &cached_id_map, &cached_name_map, NULL); if (r < 0) return r; } r = unit_file_find_fragment(cached_id_map, cached_name_map, unit_name, &_path, &names); if (r < 0) return r; if (_path) { path = strdup(_path); if (!path) return log_oom(); } if (ret_dropin_paths) { r = unit_file_find_dropin_paths(arg_root, lp->search_path, NULL, ".d", ".conf", names, &dropins); if (r < 0) return r; } } if (isempty(path)) { *ret_fragment_path = NULL; r = 0; } else { *ret_fragment_path = TAKE_PTR(path); r = 1; } if (ret_dropin_paths) { if (!strv_isempty(dropins)) { *ret_dropin_paths = TAKE_PTR(dropins); r = 1; } else *ret_dropin_paths = NULL; } not_found: if (r == 0 && !arg_force) log_error("No files found for %s.", unit_name); return r; } static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *buf = NULL, *dbus_path = NULL; UnitActiveState state; int r; assert(name); assert(active_state); dbus_path = unit_dbus_path_from_name(name); if (!dbus_path) return log_oom(); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", dbus_path, "org.freedesktop.systemd1.Unit", "ActiveState", &error, &buf); if (r < 0) return log_error_errno(r, "Failed to retrieve unit state: %s", bus_error_message(&error, r)); state = unit_active_state_from_string(buf); if (state < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid unit state '%s' for: %s", buf, name); *active_state = state; return 0; } static int unit_is_masked(sd_bus *bus, LookupPaths *lp, const char *name) { _cleanup_free_ char *load_state = NULL; int r; if (unit_name_is_valid(name, UNIT_NAME_TEMPLATE)) { _cleanup_free_ char *path = NULL; /* A template cannot be loaded, but it can be still masked, so * we need to use a different method. */ r = unit_file_find_path(lp, name, &path); if (r < 0) return r; if (r == 0) return false; return null_or_empty_path(path); } r = unit_load_state(bus, name, &load_state); if (r < 0) return r; return streq(load_state, "masked"); } static int check_triggering_units(sd_bus *bus, const char *name) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *n = NULL, *dbus_path = NULL, *load_state = NULL; _cleanup_strv_free_ char **triggered_by = NULL; bool print_warning_label = true; UnitActiveState active_state; char **i; int r; r = unit_name_mangle(name, 0, &n); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); r = unit_load_state(bus, name, &load_state); if (r < 0) return r; if (streq(load_state, "masked")) return 0; dbus_path = unit_dbus_path_from_name(n); if (!dbus_path) return log_oom(); r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", dbus_path, "org.freedesktop.systemd1.Unit", "TriggeredBy", &error, &triggered_by); if (r < 0) return log_error_errno(r, "Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r)); STRV_FOREACH(i, triggered_by) { r = get_state_one_unit(bus, *i, &active_state); if (r < 0) return r; if (!IN_SET(active_state, UNIT_ACTIVE, UNIT_RELOADING)) continue; if (print_warning_label) { log_warning("Warning: Stopping %s, but it can still be activated by:", n); print_warning_label = false; } log_warning(" %s", *i); } return 0; } static const struct { const char *verb; /* systemctl verb */ const char *method; /* Name of the specific D-Bus method */ const char *job_type; /* Job type when passing to the generic EnqueueUnitJob() method */ } unit_actions[] = { { "start", "StartUnit", "start" }, { "stop", "StopUnit", "stop" }, { "condstop", "StopUnit", "stop" }, /* legacy alias */ { "reload", "ReloadUnit", "reload" }, { "restart", "RestartUnit", "restart" }, { "try-restart", "TryRestartUnit", "try-restart" }, { "condrestart", "TryRestartUnit", "try-restart" }, /* legacy alias */ { "reload-or-restart", "ReloadOrRestartUnit", "reload-or-restart" }, { "try-reload-or-restart", "ReloadOrTryRestartUnit", "reload-or-try-restart" }, { "reload-or-try-restart", "ReloadOrTryRestartUnit", "reload-or-try-restart" }, /* legacy alias */ { "condreload", "ReloadOrTryRestartUnit", "reload-or-try-restart" }, /* legacy alias */ { "force-reload", "ReloadOrTryRestartUnit", "reload-or-try-restart" }, /* legacy alias */ }; static const char *verb_to_method(const char *verb) { size_t i; for (i = 0; i < ELEMENTSOF(unit_actions); i++) if (streq_ptr(unit_actions[i].verb, verb)) return unit_actions[i].method; return "StartUnit"; } static const char *verb_to_job_type(const char *verb) { size_t i; for (i = 0; i < ELEMENTSOF(unit_actions); i++) if (streq_ptr(unit_actions[i].verb, verb)) return unit_actions[i].job_type; return "start"; } static int start_unit_one( sd_bus *bus, const char *method, /* When using classic per-job bus methods */ const char *job_type, /* When using new-style EnqueueUnitJob() */ const char *name, const char *mode, sd_bus_error *error, BusWaitForJobs *w, BusWaitForUnits *wu) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *path; bool done = false; int r; assert(method); assert(name); assert(mode); assert(error); log_debug("%s dbus call org.freedesktop.systemd1.Manager %s(%s, %s)", arg_dry_run ? "Would execute" : "Executing", method, name, mode); if (arg_dry_run) return 0; if (arg_show_transaction) { _cleanup_(sd_bus_error_free) sd_bus_error enqueue_error = SD_BUS_ERROR_NULL; /* Use the new, fancy EnqueueUnitJob() API if the user wants us to print the transaction */ r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "EnqueueUnitJob", &enqueue_error, &reply, "sss", name, job_type, mode); if (r < 0) { if (!sd_bus_error_has_name(&enqueue_error, SD_BUS_ERROR_UNKNOWN_METHOD)) { (void) sd_bus_error_move(error, &enqueue_error); goto fail; } /* Hmm, the API is not yet available. Let's use the classic API instead (see below). */ log_notice("--show-transaction not supported by this service manager, proceeding without."); } else { const char *u, *jt; uint32_t id; r = sd_bus_message_read(reply, "uosos", &id, &path, &u, NULL, &jt); if (r < 0) return bus_log_parse_error(r); log_info("Enqueued anchor job %" PRIu32 " %s/%s.", id, u, jt); r = sd_bus_message_enter_container(reply, 'a', "(uosos)"); if (r < 0) return bus_log_parse_error(r); for (;;) { r = sd_bus_message_read(reply, "(uosos)", &id, NULL, &u, NULL, &jt); if (r < 0) return bus_log_parse_error(r); if (r == 0) break; log_info("Enqueued auxiliary job %" PRIu32 " %s/%s.", id, u, jt); } r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); done = true; } } if (!done) { r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method, error, &reply, "ss", name, mode); if (r < 0) goto fail; r = sd_bus_message_read(reply, "o", &path); if (r < 0) return bus_log_parse_error(r); } if (need_daemon_reload(bus, name) > 0) warn_unit_file_changed(name); if (w) { log_debug("Adding %s to the set", path); r = bus_wait_for_jobs_add(w, path); if (r < 0) return log_error_errno(r, "Failed to watch job for %s: %m", name); } if (wu) { r = bus_wait_for_units_add_unit(wu, name, BUS_WAIT_FOR_INACTIVE|BUS_WAIT_NO_JOB, NULL, NULL); if (r < 0) return log_error_errno(r, "Failed to watch unit %s: %m", name); } return 0; fail: /* There's always a fallback possible for legacy actions. */ if (arg_action != ACTION_SYSTEMCTL) return r; log_error_errno(r, "Failed to %s %s: %s", job_type, name, bus_error_message(error, r)); if (!sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) && !sd_bus_error_has_name(error, BUS_ERROR_UNIT_MASKED) && !sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE)) log_error("See %s logs and 'systemctl%s status%s %s' for details.", arg_scope == UNIT_FILE_SYSTEM ? "system" : "user", arg_scope == UNIT_FILE_SYSTEM ? "" : " --user", name[0] == '-' ? " --" : "", name); return r; } static const struct { const char *target; const char *verb; const char *mode; } action_table[_ACTION_MAX] = { [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" }, [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" }, [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" }, [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" }, [ACTION_RUNLEVEL2] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" }, [ACTION_RUNLEVEL3] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" }, [ACTION_RUNLEVEL4] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" }, [ACTION_RUNLEVEL5] = { SPECIAL_GRAPHICAL_TARGET, NULL, "isolate" }, [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" }, [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" }, [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" }, [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" }, [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" }, [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" }, [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" }, [ACTION_SUSPEND_THEN_HIBERNATE] = { SPECIAL_SUSPEND_THEN_HIBERNATE_TARGET, "suspend-then-hibernate", "replace-irreversibly" }, }; static enum action verb_to_action(const char *verb) { enum action i; for (i = 0; i < _ACTION_MAX; i++) if (streq_ptr(action_table[i].verb, verb)) return i; return _ACTION_INVALID; } static const char** make_extra_args(const char *extra_args[static 4]) { size_t n = 0; assert(extra_args); if (arg_scope != UNIT_FILE_SYSTEM) extra_args[n++] = "--user"; if (arg_transport == BUS_TRANSPORT_REMOTE) { extra_args[n++] = "-H"; extra_args[n++] = arg_host; } else if (arg_transport == BUS_TRANSPORT_MACHINE) { extra_args[n++] = "-M"; extra_args[n++] = arg_host; } else assert(arg_transport == BUS_TRANSPORT_LOCAL); extra_args[n] = NULL; return extra_args; } static int start_unit(int argc, char *argv[], void *userdata) { _cleanup_(bus_wait_for_units_freep) BusWaitForUnits *wu = NULL; _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; const char *method, *job_type, *mode, *one_name, *suffix = NULL; _cleanup_free_ char **stopped_units = NULL; /* Do not use _cleanup_strv_free_ */ _cleanup_strv_free_ char **names = NULL; int r, ret = EXIT_SUCCESS; sd_bus *bus; char **name; if (arg_wait && !STR_IN_SET(argv[0], "start", "restart")) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--wait may only be used with the 'start' or 'restart' commands."); /* we cannot do sender tracking on the private bus, so we need the full * one for RefUnit to implement --wait */ r = acquire_bus(arg_wait ? BUS_FULL : BUS_MANAGER, &bus); if (r < 0) return r; ask_password_agent_open_if_enabled(); polkit_agent_open_maybe(); if (arg_action == ACTION_SYSTEMCTL) { enum action action; action = verb_to_action(argv[0]); if (action != _ACTION_INVALID) { /* A command in style "systemctl reboot", "systemctl poweroff", … */ method = "StartUnit"; job_type = "start"; mode = action_table[action].mode; one_name = action_table[action].target; } else { if (streq(argv[0], "isolate")) { /* A "systemctl isolate …" command */ method = "StartUnit"; job_type = "start"; mode = "isolate"; suffix = ".target"; } else { /* A command in style of "systemctl start …", "sysemctl stop …" and so on */ method = verb_to_method(argv[0]); job_type = verb_to_job_type(argv[0]); mode = arg_job_mode; } one_name = NULL; } } else { /* A SysV legacy command such as "halt", "reboot", "poweroff", … */ assert(arg_action >= 0 && arg_action < _ACTION_MAX); assert(action_table[arg_action].target); assert(action_table[arg_action].mode); method = "StartUnit"; job_type = "start"; mode = action_table[arg_action].mode; one_name = action_table[arg_action].target; } if (one_name) { names = strv_new(one_name); if (!names) return log_oom(); } else { r = expand_names(bus, strv_skip(argv, 1), suffix, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); } if (!arg_no_block) { r = bus_wait_for_jobs_new(bus, &w); if (r < 0) return log_error_errno(r, "Could not watch jobs: %m"); } if (arg_wait) { r = sd_bus_call_method_async( bus, NULL, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "Subscribe", NULL, NULL, NULL); if (r < 0) return log_error_errno(r, "Failed to enable subscription: %m"); r = bus_wait_for_units_new(bus, &wu); if (r < 0) return log_error_errno(r, "Failed to allocate unit watch context: %m"); } STRV_FOREACH(name, names) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; r = start_unit_one(bus, method, job_type, *name, mode, &error, w, wu); if (ret == EXIT_SUCCESS && r < 0) ret = translate_bus_error_to_exit_status(r, &error); if (r >= 0 && streq(method, "StopUnit")) { r = strv_push(&stopped_units, *name); if (r < 0) return log_oom(); } } if (!arg_no_block) { const char* extra_args[4]; r = bus_wait_for_jobs(w, arg_quiet, make_extra_args(extra_args)); if (r < 0) return r; /* When stopping units, warn if they can still be triggered by * another active unit (socket, path, timer) */ if (!arg_quiet) STRV_FOREACH(name, stopped_units) (void) check_triggering_units(bus, *name); } if (arg_wait) { r = bus_wait_for_units_run(wu); if (r < 0) return log_error_errno(r, "Failed to wait for units: %m"); if (r == BUS_WAIT_FAILURE && ret == EXIT_SUCCESS) ret = EXIT_FAILURE; } return ret; } #if ENABLE_LOGIND static int logind_set_wall_message(void) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; _cleanup_free_ char *m = NULL; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; m = strv_join(arg_wall, " "); if (!m) return log_oom(); log_debug("%s wall message \"%s\".", arg_dry_run ? "Would set" : "Setting", m); if (arg_dry_run) return 0; r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "SetWallMessage", &error, NULL, "sb", m, !arg_no_wall); if (r < 0) return log_warning_errno(r, "Failed to set wall message, ignoring: %s", bus_error_message(&error, r)); return 0; } #endif /* Ask systemd-logind, which might grant access to unprivileged users through polkit */ static int logind_reboot(enum action a) { #if ENABLE_LOGIND static const struct { const char *method; const char *description; } actions[_ACTION_MAX] = { [ACTION_POWEROFF] = { "PowerOff", "power off system" }, [ACTION_REBOOT] = { "Reboot", "reboot system" }, [ACTION_HALT] = { "Halt", "halt system" }, [ACTION_SUSPEND] = { "Suspend", "suspend system" }, [ACTION_HIBERNATE] = { "Hibernate", "hibernate system" }, [ACTION_HYBRID_SLEEP] = { "HybridSleep", "put system into hybrid sleep" }, [ACTION_SUSPEND_THEN_HIBERNATE] = { "SuspendThenHibernate", "suspend system, hibernate later" }, }; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; int r; if (a < 0 || a >= _ACTION_MAX || !actions[a].method) return -EINVAL; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; polkit_agent_open_maybe(); (void) logind_set_wall_message(); log_debug("%s org.freedesktop.login1.Manager %s dbus call.", arg_dry_run ? "Would execute" : "Executing", actions[a].method); if (arg_dry_run) return 0; r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", actions[a].method, &error, NULL, "b", arg_ask_password); if (r < 0) return log_error_errno(r, "Failed to %s via logind: %s", actions[a].description, bus_error_message(&error, r)); return 0; #else return -ENOSYS; #endif } static int logind_check_inhibitors(enum action a) { #if ENABLE_LOGIND _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_strv_free_ char **sessions = NULL; const char *what, *who, *why, *mode; uint32_t uid, pid; sd_bus *bus; unsigned c = 0; char **s; int r; if (arg_ignore_inhibitors || arg_force > 0) return 0; if (arg_when > 0) return 0; if (geteuid() == 0) return 0; if (!on_tty()) return 0; if (arg_transport != BUS_TRANSPORT_LOCAL) return 0; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "ListInhibitors", NULL, &reply, NULL); if (r < 0) /* If logind is not around, then there are no inhibitors... */ return 0; r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) { _cleanup_free_ char *comm = NULL, *user = NULL; _cleanup_strv_free_ char **sv = NULL; if (!streq(mode, "block")) continue; sv = strv_split(what, ":"); if (!sv) return log_oom(); if (!pid_is_valid((pid_t) pid)) return log_error_errno(SYNTHETIC_ERRNO(ERANGE), "Invalid PID "PID_FMT".", (pid_t) pid); if (!strv_contains(sv, IN_SET(a, ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT, ACTION_KEXEC) ? "shutdown" : "sleep")) continue; get_process_comm(pid, &comm); user = uid_to_name(uid); log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".", who, (pid_t) pid, strna(comm), strna(user), why); c++; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); /* Check for current sessions */ sd_get_sessions(&sessions); STRV_FOREACH(s, sessions) { _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL; if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid()) continue; if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user")) continue; if (sd_session_get_type(*s, &type) < 0 || !STR_IN_SET(type, "x11", "wayland", "tty", "mir")) continue; sd_session_get_tty(*s, &tty); sd_session_get_seat(*s, &seat); sd_session_get_service(*s, &service); user = uid_to_name(uid); log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty); c++; } if (c <= 0) return 0; log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.", action_table[a].verb); return -EPERM; #else return 0; #endif } static int prepare_firmware_setup(void) { if (!arg_firmware_setup) return 0; #if ENABLE_LOGIND _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "SetRebootToFirmwareSetup", &error, NULL, "b", true); if (r < 0) return log_error_errno(r, "Cannot indicate to EFI to boot into setup mode: %s", bus_error_message(&error, r)); return 0; #else return log_error_errno(SYNTHETIC_ERRNO(ENOSYS), "Booting into firmware setup not supported."); #endif } static int prepare_boot_loader_menu(void) { if (arg_boot_loader_menu == USEC_INFINITY) return 0; #if ENABLE_LOGIND _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "SetRebootToBootLoaderMenu", &error, NULL, "t", arg_boot_loader_menu); if (r < 0) return log_error_errno(r, "Cannot indicate to boot loader to enter boot loader entry menu: %s", bus_error_message(&error, r)); return 0; #else return log_error_errno(SYNTHETIC_ERRNO(ENOSYS), "Booting into boot loader menu not supported."); #endif } static int prepare_boot_loader_entry(void) { if (!arg_boot_loader_entry) return 0; #if ENABLE_LOGIND _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "SetRebootToBootLoaderEntry", &error, NULL, "s", arg_boot_loader_entry); if (r < 0) return log_error_errno(r, "Cannot set boot into loader entry '%s': %s", arg_boot_loader_entry, bus_error_message(&error, r)); return 0; #else return log_error_errno(SYNTHETIC_ERRNO(ENOSYS), "Booting into boot loader entry not supported."); #endif } static int load_kexec_kernel(void) { _cleanup_(boot_config_free) BootConfig config = {}; _cleanup_free_ char *kernel = NULL, *initrd = NULL, *options = NULL; const BootEntry *e; pid_t pid; int r; if (kexec_loaded()) { log_debug("Kexec kernel already loaded."); return 0; } if (access(KEXEC, X_OK) < 0) return log_error_errno(errno, KEXEC" is not available: %m"); r = boot_entries_load_config_auto(NULL, NULL, &config); if (r == -ENOKEY) /* The call doesn't log about ENOKEY, let's do so here. */ return log_error_errno(r, "Cannot find the ESP partition mount point."); if (r < 0) return r; e = boot_config_default_entry(&config); if (!e) return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "No boot loader entry suitable as default, refusing to guess."); log_debug("Found default boot loader entry in file \"%s\"", e->path); if (!e->kernel) return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Boot entry does not refer to Linux kernel, which is not supported currently."); if (strv_length(e->initrd) > 1) return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Boot entry specifies multiple initrds, which is not supported currently."); kernel = path_join(e->root, e->kernel); if (!kernel) return log_oom(); if (!strv_isempty(e->initrd)) { initrd = path_join(e->root, e->initrd[0]); if (!initrd) return log_oom(); } options = strv_join(e->options, " "); if (!options) return log_oom(); log_full(arg_quiet ? LOG_DEBUG : LOG_INFO, "%s "KEXEC" --load \"%s\" --append \"%s\"%s%s%s", arg_dry_run ? "Would run" : "Running", kernel, options, initrd ? " --initrd \"" : NULL, strempty(initrd), initrd ? "\"" : ""); if (arg_dry_run) return 0; r = safe_fork("(kexec)", FORK_WAIT|FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid); if (r < 0) return r; if (r == 0) { const char* const args[] = { KEXEC, "--load", kernel, "--append", options, initrd ? "--initrd" : NULL, initrd, NULL }; /* Child */ execv(args[0], (char * const *) args); _exit(EXIT_FAILURE); } return 0; } static int set_exit_code(uint8_t code) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SetExitCode", &error, NULL, "y", code); if (r < 0) return log_error_errno(r, "Failed to set exit code: %s", bus_error_message(&error, r)); return 0; } static int start_special(int argc, char *argv[], void *userdata) { enum action a; int r; bool termination_action; /* an action that terminates the manager, * can be performed also by signal. */ assert(argv); a = verb_to_action(argv[0]); r = logind_check_inhibitors(a); if (r < 0) return r; if (arg_force >= 2) { r = must_be_root(); if (r < 0) return r; } r = prepare_firmware_setup(); if (r < 0) return r; r = prepare_boot_loader_menu(); if (r < 0) return r; r = prepare_boot_loader_entry(); if (r < 0) return r; if (a == ACTION_REBOOT && argc > 1) { r = update_reboot_parameter_and_warn(argv[1], false); if (r < 0) return r; } else if (a == ACTION_KEXEC) { r = load_kexec_kernel(); if (r < 0 && arg_force >= 1) log_notice("Failed to load kexec kernel, continuing without."); else if (r < 0) return r; } else if (a == ACTION_EXIT && argc > 1) { uint8_t code; /* If the exit code is not given on the command line, * don't reset it to zero: just keep it as it might * have been set previously. */ r = safe_atou8(argv[1], &code); if (r < 0) return log_error_errno(r, "Invalid exit code."); r = set_exit_code(code); if (r < 0) return r; } termination_action = IN_SET(a, ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT); if (termination_action && arg_force >= 2) return halt_now(a); if (arg_force >= 1 && (termination_action || IN_SET(a, ACTION_KEXEC, ACTION_EXIT))) r = trivial_method(argc, argv, userdata); else { /* First try logind, to allow authentication with polkit */ if (IN_SET(a, ACTION_POWEROFF, ACTION_REBOOT, ACTION_HALT, ACTION_SUSPEND, ACTION_HIBERNATE, ACTION_HYBRID_SLEEP, ACTION_SUSPEND_THEN_HIBERNATE)) { r = logind_reboot(a); if (r >= 0) return r; if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS)) /* requested operation is not supported or already in progress */ return r; /* On all other errors, try low-level operation. In order to minimize the difference between * operation with and without logind, we explicitly enable non-blocking mode for this, as * logind's shutdown operations are always non-blocking. */ arg_no_block = true; } else if (IN_SET(a, ACTION_EXIT, ACTION_KEXEC)) /* Since exit/kexec are so close in behaviour to power-off/reboot, let's also make them * asynchronous, in order to not confuse the user needlessly with unexpected behaviour. */ arg_no_block = true; r = start_unit(argc, argv, userdata); } if (termination_action && arg_force < 2 && IN_SET(r, -ENOENT, -ETIMEDOUT)) log_notice("It is possible to perform action directly, see discussion of --force --force in man:systemctl(1)."); return r; } static int start_system_special(int argc, char *argv[], void *userdata) { /* Like start_special above, but raises an error when running in user mode */ if (arg_scope != UNIT_FILE_SYSTEM) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Bad action for %s mode.", arg_scope == UNIT_FILE_GLOBAL ? "--global" : "--user"); return start_special(argc, argv, userdata); } static int check_unit_generic(int code, const UnitActiveState good_states[], int nb_states, char **args) { _cleanup_strv_free_ char **names = NULL; UnitActiveState active_state; sd_bus *bus; char **name; int r, i; bool found = false; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = expand_names(bus, args, NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); STRV_FOREACH(name, names) { r = get_state_one_unit(bus, *name, &active_state); if (r < 0) return r; if (!arg_quiet) puts(unit_active_state_to_string(active_state)); for (i = 0; i < nb_states; ++i) if (good_states[i] == active_state) found = true; } /* use the given return code for the case that we won't find * any unit which matches the list */ return found ? 0 : code; } static int check_unit_active(int argc, char *argv[], void *userdata) { static const UnitActiveState states[] = { UNIT_ACTIVE, UNIT_RELOADING, }; /* According to LSB: 3, "program is not running" */ return check_unit_generic(EXIT_PROGRAM_NOT_RUNNING, states, ELEMENTSOF(states), strv_skip(argv, 1)); } static int check_unit_failed(int argc, char *argv[], void *userdata) { static const UnitActiveState states[] = { UNIT_FAILED, }; return check_unit_generic(EXIT_PROGRAM_DEAD_AND_PID_EXISTS, states, ELEMENTSOF(states), strv_skip(argv, 1)); } static int kill_unit(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **names = NULL; char *kill_who = NULL, **name; sd_bus *bus; int r, q; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); if (!arg_kill_who) arg_kill_who = "all"; /* --fail was specified */ if (streq(arg_job_mode, "fail")) kill_who = strjoina(arg_kill_who, "-fail"); r = expand_names(bus, strv_skip(argv, 1), NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); STRV_FOREACH(name, names) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; q = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "KillUnit", &error, NULL, "ssi", *name, kill_who ? kill_who : arg_kill_who, arg_signal); if (q < 0) { log_error_errno(q, "Failed to kill unit %s: %s", *name, bus_error_message(&error, q)); if (r == 0) r = q; } } return r; } static int clean_unit(int argc, char *argv[], void *userdata) { _cleanup_(bus_wait_for_units_freep) BusWaitForUnits *w = NULL; _cleanup_strv_free_ char **names = NULL; int r, ret = EXIT_SUCCESS; char **name; sd_bus *bus; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; polkit_agent_open_maybe(); if (!arg_clean_what) { arg_clean_what = strv_new("cache", "runtime"); if (!arg_clean_what) return log_oom(); } r = expand_names(bus, strv_skip(argv, 1), NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); if (!arg_no_block) { r = bus_wait_for_units_new(bus, &w); if (r < 0) return log_error_errno(r, "Failed to allocate unit waiter: %m"); } STRV_FOREACH(name, names) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; if (w) { /* If we shall wait for the cleaning to complete, let's add a ref on the unit first */ r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "RefUnit", &error, NULL, "s", *name); if (r < 0) { log_error_errno(r, "Failed to add reference to unit %s: %s", *name, bus_error_message(&error, r)); if (ret == EXIT_SUCCESS) ret = r; continue; } } r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "CleanUnit"); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append(m, "s", *name); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, arg_clean_what); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, NULL); if (r < 0) { log_error_errno(r, "Failed to clean unit %s: %s", *name, bus_error_message(&error, r)); if (ret == EXIT_SUCCESS) { ret = r; continue; } } if (w) { r = bus_wait_for_units_add_unit(w, *name, BUS_WAIT_REFFED|BUS_WAIT_FOR_MAINTENANCE_END, NULL, NULL); if (r < 0) return log_error_errno(r, "Failed to watch unit %s: %m", *name); } } r = bus_wait_for_units_run(w); if (r < 0) return log_error_errno(r, "Failed to wait for units: %m"); if (r == BUS_WAIT_FAILURE) ret = EXIT_FAILURE; return ret; } typedef struct ExecStatusInfo { char *name; char *path; char **argv; bool ignore; usec_t start_timestamp; usec_t exit_timestamp; pid_t pid; int code; int status; ExecCommandFlags flags; LIST_FIELDS(struct ExecStatusInfo, exec); } ExecStatusInfo; static void exec_status_info_free(ExecStatusInfo *i) { assert(i); free(i->name); free(i->path); strv_free(i->argv); free(i); } static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i, bool is_ex_prop) { _cleanup_strv_free_ char **ex_opts = NULL; uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic; const char *path; uint32_t pid; int32_t code, status; int ignore, r; assert(m); assert(i); r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, is_ex_prop ? "sasasttttuii" : "sasbttttuii"); if (r < 0) return bus_log_parse_error(r); else if (r == 0) return 0; r = sd_bus_message_read(m, "s", &path); if (r < 0) return bus_log_parse_error(r); i->path = strdup(path); if (!i->path) return log_oom(); r = sd_bus_message_read_strv(m, &i->argv); if (r < 0) return bus_log_parse_error(r); r = is_ex_prop ? sd_bus_message_read_strv(m, &ex_opts) : sd_bus_message_read(m, "b", &ignore); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read(m, "ttttuii", &start_timestamp, &start_timestamp_monotonic, &exit_timestamp, &exit_timestamp_monotonic, &pid, &code, &status); if (r < 0) return bus_log_parse_error(r); if (is_ex_prop) { r = exec_command_flags_from_strv(ex_opts, &i->flags); if (r < 0) return log_error_errno(r, "Failed to convert strv to ExecCommandFlags: %m"); i->ignore = FLAGS_SET(i->flags, EXEC_COMMAND_IGNORE_FAILURE); } else i->ignore = ignore; i->start_timestamp = (usec_t) start_timestamp; i->exit_timestamp = (usec_t) exit_timestamp; i->pid = (pid_t) pid; i->code = code; i->status = status; r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } typedef struct UnitCondition { char *name; char *param; bool trigger; bool negate; int tristate; LIST_FIELDS(struct UnitCondition, conditions); } UnitCondition; static void unit_condition_free(UnitCondition *c) { if (!c) return; free(c->name); free(c->param); free(c); } DEFINE_TRIVIAL_CLEANUP_FUNC(UnitCondition*, unit_condition_free); typedef struct UnitStatusInfo { const char *id; const char *load_state; const char *active_state; const char *sub_state; const char *unit_file_state; const char *unit_file_preset; const char *description; const char *following; char **documentation; const char *fragment_path; const char *source_path; const char *control_group; char **dropin_paths; const char *load_error; const char *result; usec_t inactive_exit_timestamp; usec_t inactive_exit_timestamp_monotonic; usec_t active_enter_timestamp; usec_t active_exit_timestamp; usec_t inactive_enter_timestamp; bool need_daemon_reload; bool transient; /* Service */ pid_t main_pid; pid_t control_pid; const char *status_text; const char *pid_file; bool running:1; int status_errno; usec_t start_timestamp; usec_t exit_timestamp; int exit_code, exit_status; usec_t condition_timestamp; bool condition_result; LIST_HEAD(UnitCondition, conditions); usec_t assert_timestamp; bool assert_result; bool failed_assert_trigger; bool failed_assert_negate; const char *failed_assert; const char *failed_assert_parameter; usec_t next_elapse_real; usec_t next_elapse_monotonic; /* Socket */ unsigned n_accepted; unsigned n_connections; unsigned n_refused; bool accept; /* Pairs of type, path */ char **listen; /* Device */ const char *sysfs_path; /* Mount, Automount */ const char *where; /* Swap */ const char *what; /* CGroup */ uint64_t memory_current; uint64_t memory_min; uint64_t memory_low; uint64_t memory_high; uint64_t memory_max; uint64_t memory_swap_max; uint64_t memory_limit; uint64_t cpu_usage_nsec; uint64_t tasks_current; uint64_t tasks_max; uint64_t ip_ingress_bytes; uint64_t ip_egress_bytes; uint64_t io_read_bytes; uint64_t io_write_bytes; uint64_t default_memory_min; uint64_t default_memory_low; LIST_HEAD(ExecStatusInfo, exec); } UnitStatusInfo; static void unit_status_info_free(UnitStatusInfo *info) { ExecStatusInfo *p; UnitCondition *c; strv_free(info->documentation); strv_free(info->dropin_paths); strv_free(info->listen); while ((c = info->conditions)) { LIST_REMOVE(conditions, info->conditions, c); unit_condition_free(c); } while ((p = info->exec)) { LIST_REMOVE(exec, info->exec, p); exec_status_info_free(p); } } static void print_status_info( sd_bus *bus, UnitStatusInfo *i, bool *ellipsized) { char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX]; const char *s1, *s2, *active_on, *active_off, *on, *off, *ss; _cleanup_free_ char *formatted_path = NULL; ExecStatusInfo *p; usec_t timestamp; const char *path; char **t, **t2; int r; assert(i); /* This shows pretty information about a unit. See * print_property() for a low-level property printer */ if (streq_ptr(i->active_state, "failed")) { active_on = ansi_highlight_red(); active_off = ansi_normal(); } else if (STRPTR_IN_SET(i->active_state, "active", "reloading")) { active_on = ansi_highlight_green(); active_off = ansi_normal(); } else active_on = active_off = ""; printf("%s%s%s %s", active_on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), active_off, strna(i->id)); if (i->description && !streq_ptr(i->id, i->description)) printf(" - %s", i->description); printf("\n"); if (i->following) printf(" Follow: unit currently follows state of %s\n", i->following); if (STRPTR_IN_SET(i->load_state, "error", "not-found", "bad-setting")) { on = ansi_highlight_red(); off = ansi_normal(); } else on = off = ""; path = i->source_path ?: i->fragment_path; if (path && terminal_urlify_path(path, NULL, &formatted_path) >= 0) path = formatted_path; if (!isempty(i->load_error)) printf(" Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error); else if (path && !isempty(i->unit_file_state) && !isempty(i->unit_file_preset) && !STR_IN_SET(i->unit_file_state, "generated", "transient")) printf(" Loaded: %s%s%s (%s; %s; vendor preset: %s)\n", on, strna(i->load_state), off, path, i->unit_file_state, i->unit_file_preset); else if (path && !isempty(i->unit_file_state)) printf(" Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state); else if (path) printf(" Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path); else printf(" Loaded: %s%s%s\n", on, strna(i->load_state), off); if (i->transient) printf("Transient: yes\n"); if (!strv_isempty(i->dropin_paths)) { _cleanup_free_ char *dir = NULL; bool last = false; char ** dropin; STRV_FOREACH(dropin, i->dropin_paths) { _cleanup_free_ char *dropin_formatted = NULL; const char *df; if (!dir || last) { printf(dir ? " " : " Drop-In: "); dir = mfree(dir); dir = dirname_malloc(*dropin); if (!dir) { log_oom(); return; } printf("%s\n" " %s", dir, special_glyph(SPECIAL_GLYPH_TREE_RIGHT)); } last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir)); if (terminal_urlify_path(*dropin, basename(*dropin), &dropin_formatted) >= 0) df = dropin_formatted; else df = *dropin; printf("%s%s", df, last ? "\n" : ", "); } } ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state; if (ss) printf(" Active: %s%s (%s)%s", active_on, strna(i->active_state), ss, active_off); else printf(" Active: %s%s%s", active_on, strna(i->active_state), active_off); if (!isempty(i->result) && !streq(i->result, "success")) printf(" (Result: %s)", i->result); timestamp = STRPTR_IN_SET(i->active_state, "active", "reloading") ? i->active_enter_timestamp : STRPTR_IN_SET(i->active_state, "inactive", "failed") ? i->inactive_enter_timestamp : STRPTR_IN_SET(i->active_state, "activating") ? i->inactive_exit_timestamp : i->active_exit_timestamp; s1 = format_timestamp_relative(since1, sizeof(since1), timestamp); s2 = format_timestamp(since2, sizeof(since2), timestamp); if (s1) printf(" since %s; %s\n", s2, s1); else if (s2) printf(" since %s\n", s2); else printf("\n"); if (endswith(i->id, ".timer")) { char tstamp1[FORMAT_TIMESTAMP_RELATIVE_MAX], tstamp2[FORMAT_TIMESTAMP_MAX]; const char *next_rel_time, *next_time; dual_timestamp nw, next = {i->next_elapse_real, i->next_elapse_monotonic}; usec_t next_elapse; printf(" Trigger: "); dual_timestamp_get(&nw); next_elapse = calc_next_elapse(&nw, &next); next_rel_time = format_timestamp_relative(tstamp1, sizeof tstamp1, next_elapse); next_time = format_timestamp(tstamp2, sizeof tstamp2, next_elapse); if (next_time && next_rel_time) printf("%s; %s\n", next_time, next_rel_time); else printf("n/a\n"); } if (!i->condition_result && i->condition_timestamp > 0) { UnitCondition *c; int n = 0; s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp); s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp); printf("Condition: start %scondition failed%s at %s%s%s\n", ansi_highlight_yellow(), ansi_normal(), s2, s1 ? "; " : "", strempty(s1)); LIST_FOREACH(conditions, c, i->conditions) if (c->tristate < 0) n++; LIST_FOREACH(conditions, c, i->conditions) if (c->tristate < 0) printf(" %s %s=%s%s%s was not met\n", --n ? special_glyph(SPECIAL_GLYPH_TREE_BRANCH) : special_glyph(SPECIAL_GLYPH_TREE_RIGHT), c->name, c->trigger ? "|" : "", c->negate ? "!" : "", c->param); } if (!i->assert_result && i->assert_timestamp > 0) { s1 = format_timestamp_relative(since1, sizeof(since1), i->assert_timestamp); s2 = format_timestamp(since2, sizeof(since2), i->assert_timestamp); printf(" Assert: start %sassertion failed%s at %s%s%s\n", ansi_highlight_red(), ansi_normal(), s2, s1 ? "; " : "", strempty(s1)); if (i->failed_assert_trigger) printf(" none of the trigger assertions were met\n"); else if (i->failed_assert) printf(" %s=%s%s was not met\n", i->failed_assert, i->failed_assert_negate ? "!" : "", i->failed_assert_parameter); } if (i->sysfs_path) printf(" Device: %s\n", i->sysfs_path); if (i->where) printf(" Where: %s\n", i->where); if (i->what) printf(" What: %s\n", i->what); STRV_FOREACH(t, i->documentation) { _cleanup_free_ char *formatted = NULL; const char *q; if (terminal_urlify(*t, NULL, &formatted) >= 0) q = formatted; else q = *t; printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", q); } STRV_FOREACH_PAIR(t, t2, i->listen) printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t); if (i->accept) { printf(" Accepted: %u; Connected: %u;", i->n_accepted, i->n_connections); if (i->n_refused) printf(" Refused: %u", i->n_refused); printf("\n"); } LIST_FOREACH(exec, p, i->exec) { _cleanup_free_ char *argv = NULL; bool good; /* Only show exited processes here */ if (p->code == 0) continue; /* Don't print ExecXYZEx= properties here since it will appear as a * duplicate of the non-Ex= variant. */ if (endswith(p->name, "Ex")) continue; argv = strv_join(p->argv, " "); printf(" Process: "PID_FMT" %s=%s ", p->pid, p->name, strna(argv)); good = is_clean_exit(p->code, p->status, EXIT_CLEAN_DAEMON, NULL); if (!good) { on = ansi_highlight_red(); off = ansi_normal(); } else on = off = ""; printf("%s(code=%s, ", on, sigchld_code_to_string(p->code)); if (p->code == CLD_EXITED) { const char *c; printf("status=%i", p->status); c = exit_status_to_string(p->status, EXIT_STATUS_LIBC | EXIT_STATUS_SYSTEMD); if (c) printf("/%s", c); } else printf("signal=%s", signal_to_string(p->status)); printf(")%s\n", off); if (i->main_pid == p->pid && i->start_timestamp == p->start_timestamp && i->exit_timestamp == p->start_timestamp) /* Let's not show this twice */ i->main_pid = 0; if (p->pid == i->control_pid) i->control_pid = 0; } if (i->main_pid > 0 || i->control_pid > 0) { if (i->main_pid > 0) { printf(" Main PID: "PID_FMT, i->main_pid); if (i->running) { if (arg_transport == BUS_TRANSPORT_LOCAL) { _cleanup_free_ char *comm = NULL; (void) get_process_comm(i->main_pid, &comm); if (comm) printf(" (%s)", comm); } } else if (i->exit_code > 0) { printf(" (code=%s, ", sigchld_code_to_string(i->exit_code)); if (i->exit_code == CLD_EXITED) { const char *c; printf("status=%i", i->exit_status); c = exit_status_to_string(i->exit_status, EXIT_STATUS_LIBC | EXIT_STATUS_SYSTEMD); if (c) printf("/%s", c); } else printf("signal=%s", signal_to_string(i->exit_status)); printf(")"); } } if (i->control_pid > 0) { _cleanup_free_ char *c = NULL; if (i->main_pid > 0) fputs("; Control PID: ", stdout); else fputs("Cntrl PID: ", stdout); /* if first in column, abbreviated so it fits alignment */ printf(PID_FMT, i->control_pid); if (arg_transport == BUS_TRANSPORT_LOCAL) { (void) get_process_comm(i->control_pid, &c); if (c) printf(" (%s)", c); } } printf("\n"); } if (i->status_text) printf(" Status: \"%s\"\n", i->status_text); if (i->status_errno > 0) printf(" Error: %i (%s)\n", i->status_errno, strerror_safe(i->status_errno)); if (i->ip_ingress_bytes != (uint64_t) -1 && i->ip_egress_bytes != (uint64_t) -1) { char buf_in[FORMAT_BYTES_MAX], buf_out[FORMAT_BYTES_MAX]; printf(" IP: %s in, %s out\n", format_bytes(buf_in, sizeof(buf_in), i->ip_ingress_bytes), format_bytes(buf_out, sizeof(buf_out), i->ip_egress_bytes)); } if (i->io_read_bytes != UINT64_MAX && i->io_write_bytes != UINT64_MAX) { char buf_in[FORMAT_BYTES_MAX], buf_out[FORMAT_BYTES_MAX]; printf(" IO: %s read, %s written\n", format_bytes(buf_in, sizeof(buf_in), i->io_read_bytes), format_bytes(buf_out, sizeof(buf_out), i->io_write_bytes)); } if (i->tasks_current != (uint64_t) -1) { printf(" Tasks: %" PRIu64, i->tasks_current); if (i->tasks_max != (uint64_t) -1) printf(" (limit: %" PRIu64 ")\n", i->tasks_max); else printf("\n"); } if (i->memory_current != (uint64_t) -1) { char buf[FORMAT_BYTES_MAX]; printf(" Memory: %s", format_bytes(buf, sizeof(buf), i->memory_current)); if (i->memory_min > 0 || i->memory_low > 0 || i->memory_high != CGROUP_LIMIT_MAX || i->memory_max != CGROUP_LIMIT_MAX || i->memory_swap_max != CGROUP_LIMIT_MAX || i->memory_limit != CGROUP_LIMIT_MAX) { const char *prefix = ""; printf(" ("); if (i->memory_min > 0) { printf("%smin: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_min)); prefix = " "; } if (i->memory_low > 0) { printf("%slow: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_low)); prefix = " "; } if (i->memory_high != CGROUP_LIMIT_MAX) { printf("%shigh: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_high)); prefix = " "; } if (i->memory_max != CGROUP_LIMIT_MAX) { printf("%smax: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_max)); prefix = " "; } if (i->memory_swap_max != CGROUP_LIMIT_MAX) { printf("%sswap max: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_swap_max)); prefix = " "; } if (i->memory_limit != CGROUP_LIMIT_MAX) { printf("%slimit: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_limit)); prefix = " "; } printf(")"); } printf("\n"); } if (i->cpu_usage_nsec != (uint64_t) -1) { char buf[FORMAT_TIMESPAN_MAX]; printf(" CPU: %s\n", format_timespan(buf, sizeof(buf), i->cpu_usage_nsec / NSEC_PER_USEC, USEC_PER_MSEC)); } if (i->control_group) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; static const char prefix[] = " "; unsigned c; printf(" CGroup: %s\n", i->control_group); c = columns(); if (c > sizeof(prefix) - 1) c -= sizeof(prefix) - 1; else c = 0; r = unit_show_processes(bus, i->id, i->control_group, prefix, c, get_output_flags(), &error); if (r == -EBADR) { unsigned k = 0; pid_t extra[2]; /* Fallback for older systemd versions where the GetUnitProcesses() call is not yet available */ if (i->main_pid > 0) extra[k++] = i->main_pid; if (i->control_pid > 0) extra[k++] = i->control_pid; show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, extra, k, get_output_flags()); } else if (r < 0) log_warning_errno(r, "Failed to dump process list for '%s', ignoring: %s", i->id, bus_error_message(&error, r)); } if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) show_journal_by_unit( stdout, i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, getuid(), get_output_flags() | OUTPUT_BEGIN_NEWLINE, SD_JOURNAL_LOCAL_ONLY, arg_scope == UNIT_FILE_SYSTEM, ellipsized); if (i->need_daemon_reload) warn_unit_file_changed(i->id); } static void show_unit_help(UnitStatusInfo *i) { char **p; assert(i); if (!i->documentation) { log_info("Documentation for %s not known.", i->id); return; } STRV_FOREACH(p, i->documentation) if (startswith(*p, "man:")) show_man_page(*p + 4, false); else log_info("Can't show: %s", *p); } static int map_main_pid(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { UnitStatusInfo *i = userdata; uint32_t u; int r; r = sd_bus_message_read(m, "u", &u); if (r < 0) return r; i->main_pid = (pid_t) u; i->running = u > 0; return 0; } static int map_load_error(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { const char *message, **p = userdata; int r; r = sd_bus_message_read(m, "(ss)", NULL, &message); if (r < 0) return r; if (!isempty(message)) *p = message; return 0; } static int map_listen(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { const char *type, *path; char ***p = userdata; int r; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return r; while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) { r = strv_extend(p, type); if (r < 0) return r; r = strv_extend(p, path); if (r < 0) return r; } if (r < 0) return r; r = sd_bus_message_exit_container(m); if (r < 0) return r; return 0; } static int map_conditions(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { UnitStatusInfo *i = userdata; const char *cond, *param; int trigger, negate; int32_t state; int r; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)"); if (r < 0) return r; while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, ¶m, &state)) > 0) { _cleanup_(unit_condition_freep) UnitCondition *c = NULL; c = new(UnitCondition, 1); if (!c) return -ENOMEM; *c = (UnitCondition) { .name = strdup(cond), .param = strdup(param), .trigger = trigger, .negate = negate, .tristate = state, }; if (!c->name || !c->param) return -ENOMEM; LIST_PREPEND(conditions, i->conditions, TAKE_PTR(c)); } if (r < 0) return r; r = sd_bus_message_exit_container(m); if (r < 0) return r; return 0; } static int map_asserts(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { UnitStatusInfo *i = userdata; const char *cond, *param; int trigger, negate; int32_t state; int r; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)"); if (r < 0) return r; while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, ¶m, &state)) > 0) { if (state < 0 && (!trigger || !i->failed_assert)) { i->failed_assert = cond; i->failed_assert_trigger = trigger; i->failed_assert_negate = negate; i->failed_assert_parameter = param; } } if (r < 0) return r; r = sd_bus_message_exit_container(m); if (r < 0) return r; return 0; } static int map_exec(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { _cleanup_free_ ExecStatusInfo *info = NULL; ExecStatusInfo *last; UnitStatusInfo *i = userdata; bool is_ex_prop = endswith(member, "Ex"); int r; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, is_ex_prop ? "(sasasttttuii)" : "(sasbttttuii)"); if (r < 0) return r; info = new0(ExecStatusInfo, 1); if (!info) return -ENOMEM; LIST_FIND_TAIL(exec, i->exec, last); while ((r = exec_status_info_deserialize(m, info, is_ex_prop)) > 0) { info->name = strdup(member); if (!info->name) return -ENOMEM; LIST_INSERT_AFTER(exec, i->exec, last, info); last = info; info = new0(ExecStatusInfo, 1); if (!info) return -ENOMEM; } if (r < 0) return r; r = sd_bus_message_exit_container(m); if (r < 0) return r; return 0; } static int print_property(const char *name, const char *expected_value, sd_bus_message *m, bool value, bool all) { char bus_type; const char *contents; int r; assert(name); assert(m); /* This is a low-level property printer, see * print_status_info() for the nicer output */ r = sd_bus_message_peek_type(m, &bus_type, &contents); if (r < 0) return r; switch (bus_type) { case SD_BUS_TYPE_INT32: if (endswith(name, "ActionExitStatus")) { int32_t i; r = sd_bus_message_read_basic(m, bus_type, &i); if (r < 0) return r; if (i >= 0 && i <= 255) bus_print_property_valuef(name, expected_value, value, "%"PRIi32, i); else if (all) bus_print_property_value(name, expected_value, value, "[not set]"); return 1; } else if (streq(name, "NUMAPolicy")) { int32_t i; r = sd_bus_message_read_basic(m, bus_type, &i); if (r < 0) return r; bus_print_property_valuef(name, expected_value, value, "%s", strna(mpol_to_string(i))); return 1; } break; case SD_BUS_TYPE_STRUCT: if (contents[0] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) { uint32_t u; r = sd_bus_message_read(m, "(uo)", &u, NULL); if (r < 0) return bus_log_parse_error(r); if (u > 0) bus_print_property_valuef(name, expected_value, value, "%"PRIu32, u); else if (all) bus_print_property_value(name, expected_value, value, ""); return 1; } else if (contents[0] == SD_BUS_TYPE_STRING && streq(name, "Unit")) { const char *s; r = sd_bus_message_read(m, "(so)", &s, NULL); if (r < 0) return bus_log_parse_error(r); if (all || !isempty(s)) bus_print_property_value(name, expected_value, value, s); return 1; } else if (contents[0] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) { const char *a = NULL, *b = NULL; r = sd_bus_message_read(m, "(ss)", &a, &b); if (r < 0) return bus_log_parse_error(r); if (!isempty(a) || !isempty(b)) bus_print_property_valuef(name, expected_value, value, "%s \"%s\"", strempty(a), strempty(b)); else if (all) bus_print_property_value(name, expected_value, value, ""); return 1; } else if (STR_IN_SET(name, "SystemCallFilter", "RestrictAddressFamilies")) { _cleanup_strv_free_ char **l = NULL; int whitelist; r = sd_bus_message_enter_container(m, 'r', "bas"); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read(m, "b", &whitelist); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_strv(m, &l); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); if (all || whitelist || !strv_isempty(l)) { bool first = true; char **i; if (!value) { fputs(name, stdout); fputc('=', stdout); } if (!whitelist) fputc('~', stdout); STRV_FOREACH(i, l) { if (first) first = false; else fputc(' ', stdout); fputs(*i, stdout); } fputc('\n', stdout); } return 1; } else if (STR_IN_SET(name, "SELinuxContext", "AppArmorProfile", "SmackProcessLabel")) { int ignore; const char *s; r = sd_bus_message_read(m, "(bs)", &ignore, &s); if (r < 0) return bus_log_parse_error(r); if (!isempty(s)) bus_print_property_valuef(name, expected_value, value, "%s%s", ignore ? "-" : "", s); else if (all) bus_print_property_value(name, expected_value, value, ""); return 1; } else if (endswith(name, "ExitStatus") && streq(contents, "aiai")) { const int32_t *status, *signal; size_t n_status, n_signal, i; r = sd_bus_message_enter_container(m, 'r', "aiai"); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_array(m, 'i', (const void **) &status, &n_status); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_array(m, 'i', (const void **) &signal, &n_signal); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); n_status /= sizeof(int32_t); n_signal /= sizeof(int32_t); if (all || n_status > 0 || n_signal > 0) { bool first = true; if (!value) { fputs(name, stdout); fputc('=', stdout); } for (i = 0; i < n_status; i++) { if (first) first = false; else fputc(' ', stdout); printf("%"PRIi32, status[i]); } for (i = 0; i < n_signal; i++) { const char *str; str = signal_to_string((int) signal[i]); if (first) first = false; else fputc(' ', stdout); if (str) fputs(str, stdout); else printf("%"PRIi32, status[i]); } fputc('\n', stdout); } return 1; } break; case SD_BUS_TYPE_ARRAY: if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) { const char *path; int ignore; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0) bus_print_property_valuef(name, expected_value, value, "%s (ignore_errors=%s)", path, yes_no(ignore)); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) { const char *type, *path; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) bus_print_property_valuef(name, expected_value, value, "%s (%s)", path, type); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) { const char *type, *path; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) bus_print_property_valuef(name, expected_value, value, "%s (%s)", path, type); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "TimersMonotonic")) { const char *base; uint64_t v, next_elapse; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(stt)", &base, &v, &next_elapse)) > 0) { char timespan1[FORMAT_TIMESPAN_MAX] = "n/a", timespan2[FORMAT_TIMESPAN_MAX] = "n/a"; (void) format_timespan(timespan1, sizeof timespan1, v, 0); (void) format_timespan(timespan2, sizeof timespan2, next_elapse, 0); bus_print_property_valuef(name, expected_value, value, "{ %s=%s ; next_elapse=%s }", base, timespan1, timespan2); } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "TimersCalendar")) { const char *base, *spec; uint64_t next_elapse; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sst)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(sst)", &base, &spec, &next_elapse)) > 0) { char timestamp[FORMAT_TIMESTAMP_MAX] = "n/a"; (void) format_timestamp(timestamp, sizeof(timestamp), next_elapse); bus_print_property_valuef(name, expected_value, value, "{ %s=%s ; next_elapse=%s }", base, spec, timestamp); } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) { ExecStatusInfo info = {}; bool is_ex_prop = endswith(name, "Ex"); r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, is_ex_prop ? "(sasasttttuii)" : "(sasbttttuii)"); if (r < 0) return bus_log_parse_error(r); while ((r = exec_status_info_deserialize(m, &info, is_ex_prop)) > 0) { char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; _cleanup_strv_free_ char **optv = NULL; _cleanup_free_ char *tt, *o = NULL; tt = strv_join(info.argv, " "); if (is_ex_prop) { r = exec_command_flags_to_strv(info.flags, &optv); if (r < 0) return log_error_errno(r, "Failed to convert ExecCommandFlags to strv: %m"); o = strv_join(optv, " "); bus_print_property_valuef(name, expected_value, value, "{ path=%s ; argv[]=%s ; flags=%s ; start_time=[%s] ; stop_time=[%s] ; pid="PID_FMT" ; code=%s ; status=%i%s%s }", strna(info.path), strna(tt), strna(o), strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)), strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)), info.pid, sigchld_code_to_string(info.code), info.status, info.code == CLD_EXITED ? "" : "/", strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status))); } else bus_print_property_valuef(name, expected_value, value, "{ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid="PID_FMT" ; code=%s ; status=%i%s%s }", strna(info.path), strna(tt), yes_no(info.ignore), strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)), strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)), info.pid, sigchld_code_to_string(info.code), info.status, info.code == CLD_EXITED ? "" : "/", strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status))); free(info.path); strv_free(info.argv); zero(info); } r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) { const char *path, *rwm; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0) bus_print_property_valuef(name, expected_value, value, "%s %s", strna(path), strna(rwm)); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && STR_IN_SET(name, "IODeviceWeight", "BlockIODeviceWeight")) { const char *path; uint64_t weight; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0) bus_print_property_valuef(name, expected_value, value, "%s %"PRIu64, strna(path), weight); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && (cgroup_io_limit_type_from_string(name) >= 0 || STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth"))) { const char *path; uint64_t bandwidth; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0) bus_print_property_valuef(name, expected_value, value, "%s %"PRIu64, strna(path), bandwidth); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "IODeviceLatencyTargetUSec")) { char ts[FORMAT_TIMESPAN_MAX]; const char *path; uint64_t target; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(st)", &path, &target)) > 0) bus_print_property_valuef(name, expected_value, value, "%s %s", strna(path), format_timespan(ts, sizeof(ts), target, 1)); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); return 1; } else if (contents[0] == SD_BUS_TYPE_BYTE && streq(name, "StandardInputData")) { _cleanup_free_ char *h = NULL; const void *p; size_t sz; ssize_t n; r = sd_bus_message_read_array(m, 'y', &p, &sz); if (r < 0) return bus_log_parse_error(r); n = base64mem(p, sz, &h); if (n < 0) return log_oom(); bus_print_property_value(name, expected_value, value, h); return 1; } else if (STR_IN_SET(name, "IPAddressAllow", "IPAddressDeny")) { _cleanup_free_ char *addresses = NULL; r = sd_bus_message_enter_container(m, 'a', "(iayu)"); if (r < 0) return bus_log_parse_error(r); for (;;) { _cleanup_free_ char *str = NULL; uint32_t prefixlen; int32_t family; const void *ap; size_t an; r = sd_bus_message_enter_container(m, 'r', "iayu"); if (r < 0) return bus_log_parse_error(r); if (r == 0) break; r = sd_bus_message_read(m, "i", &family); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_array(m, 'y', &ap, &an); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read(m, "u", &prefixlen); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); if (!IN_SET(family, AF_INET, AF_INET6)) continue; if (an != FAMILY_ADDRESS_SIZE(family)) continue; if (prefixlen > FAMILY_ADDRESS_SIZE(family) * 8) continue; if (in_addr_prefix_to_string(family, (union in_addr_union *) ap, prefixlen, &str) < 0) continue; if (!strextend_with_separator(&addresses, " ", str, NULL)) return log_oom(); } r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); if (all || !isempty(addresses)) bus_print_property_value(name, expected_value, value, strempty(addresses)); return 1; } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) { _cleanup_free_ char *paths = NULL; const char *source, *dest; int ignore_enoent; uint64_t rbind; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ssbt)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(ssbt)", &source, &dest, &ignore_enoent, &rbind)) > 0) { _cleanup_free_ char *str = NULL; if (isempty(source)) continue; if (asprintf(&str, "%s%s%s%s%s", ignore_enoent ? "-" : "", source, isempty(dest) ? "" : ":", strempty(dest), rbind == MS_REC ? ":rbind" : "") < 0) return log_oom(); if (!strextend_with_separator(&paths, " ", str, NULL)) return log_oom(); } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); if (all || !isempty(paths)) bus_print_property_value(name, expected_value, value, strempty(paths)); return 1; } else if (streq(name, "TemporaryFileSystem")) { _cleanup_free_ char *paths = NULL; const char *target, *option; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(ss)", &target, &option)) > 0) { _cleanup_free_ char *str = NULL; if (isempty(target)) continue; if (asprintf(&str, "%s%s%s", target, isempty(option) ? "" : ":", strempty(option)) < 0) return log_oom(); if (!strextend_with_separator(&paths, " ", str, NULL)) return log_oom(); } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); if (all || !isempty(paths)) bus_print_property_value(name, expected_value, value, strempty(paths)); return 1; } else if (streq(name, "LogExtraFields")) { _cleanup_free_ char *fields = NULL; const void *p; size_t sz; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "ay"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read_array(m, 'y', &p, &sz)) > 0) { _cleanup_free_ char *str = NULL; const char *eq; if (memchr(p, 0, sz)) continue; eq = memchr(p, '=', sz); if (!eq) continue; if (!journal_field_valid(p, eq - (const char*) p, false)) continue; str = malloc(sz + 1); if (!str) return log_oom(); memcpy(str, p, sz); str[sz] = '\0'; if (!utf8_is_valid(str)) continue; if (!strextend_with_separator(&fields, " ", str, NULL)) return log_oom(); } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); if (all || !isempty(fields)) bus_print_property_value(name, expected_value, value, strempty(fields)); return 1; } else if (contents[0] == SD_BUS_TYPE_BYTE && STR_IN_SET(name, "CPUAffinity", "NUMAMask", "AllowedCPUs", "AllowedMemoryNodes", "EffectiveCPUs", "EffectiveMemoryNodes")) { _cleanup_free_ char *affinity = NULL; _cleanup_(cpu_set_reset) CPUSet set = {}; const void *a; size_t n; r = sd_bus_message_read_array(m, 'y', &a, &n); if (r < 0) return bus_log_parse_error(r); r = cpu_set_from_dbus(a, n, &set); if (r < 0) return log_error_errno(r, "Failed to deserialize %s: %m", name); affinity = cpu_set_to_range_string(&set); if (!affinity) return log_oom(); bus_print_property_value(name, expected_value, value, affinity); return 1; } break; } return 0; } typedef enum SystemctlShowMode{ SYSTEMCTL_SHOW_PROPERTIES, SYSTEMCTL_SHOW_STATUS, SYSTEMCTL_SHOW_HELP, _SYSTEMCTL_SHOW_MODE_MAX, _SYSTEMCTL_SHOW_MODE_INVALID = -1, } SystemctlShowMode; static const char* const systemctl_show_mode_table[_SYSTEMCTL_SHOW_MODE_MAX] = { [SYSTEMCTL_SHOW_PROPERTIES] = "show", [SYSTEMCTL_SHOW_STATUS] = "status", [SYSTEMCTL_SHOW_HELP] = "help", }; DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(systemctl_show_mode, SystemctlShowMode); static int show_one( sd_bus *bus, const char *path, const char *unit, SystemctlShowMode show_mode, bool *new_line, bool *ellipsized) { static const struct bus_properties_map property_map[] = { { "LoadState", "s", NULL, offsetof(UnitStatusInfo, load_state) }, { "ActiveState", "s", NULL, offsetof(UnitStatusInfo, active_state) }, { "Documentation", "as", NULL, offsetof(UnitStatusInfo, documentation) }, {} }, status_map[] = { { "Id", "s", NULL, offsetof(UnitStatusInfo, id) }, { "LoadState", "s", NULL, offsetof(UnitStatusInfo, load_state) }, { "ActiveState", "s", NULL, offsetof(UnitStatusInfo, active_state) }, { "SubState", "s", NULL, offsetof(UnitStatusInfo, sub_state) }, { "UnitFileState", "s", NULL, offsetof(UnitStatusInfo, unit_file_state) }, { "UnitFilePreset", "s", NULL, offsetof(UnitStatusInfo, unit_file_preset) }, { "Description", "s", NULL, offsetof(UnitStatusInfo, description) }, { "Following", "s", NULL, offsetof(UnitStatusInfo, following) }, { "Documentation", "as", NULL, offsetof(UnitStatusInfo, documentation) }, { "FragmentPath", "s", NULL, offsetof(UnitStatusInfo, fragment_path) }, { "SourcePath", "s", NULL, offsetof(UnitStatusInfo, source_path) }, { "ControlGroup", "s", NULL, offsetof(UnitStatusInfo, control_group) }, { "DropInPaths", "as", NULL, offsetof(UnitStatusInfo, dropin_paths) }, { "LoadError", "(ss)", map_load_error, offsetof(UnitStatusInfo, load_error) }, { "Result", "s", NULL, offsetof(UnitStatusInfo, result) }, { "InactiveExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, inactive_exit_timestamp) }, { "InactiveExitTimestampMonotonic", "t", NULL, offsetof(UnitStatusInfo, inactive_exit_timestamp_monotonic) }, { "ActiveEnterTimestamp", "t", NULL, offsetof(UnitStatusInfo, active_enter_timestamp) }, { "ActiveExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, active_exit_timestamp) }, { "InactiveEnterTimestamp", "t", NULL, offsetof(UnitStatusInfo, inactive_enter_timestamp) }, { "NeedDaemonReload", "b", NULL, offsetof(UnitStatusInfo, need_daemon_reload) }, { "Transient", "b", NULL, offsetof(UnitStatusInfo, transient) }, { "ExecMainPID", "u", NULL, offsetof(UnitStatusInfo, main_pid) }, { "MainPID", "u", map_main_pid, 0 }, { "ControlPID", "u", NULL, offsetof(UnitStatusInfo, control_pid) }, { "StatusText", "s", NULL, offsetof(UnitStatusInfo, status_text) }, { "PIDFile", "s", NULL, offsetof(UnitStatusInfo, pid_file) }, { "StatusErrno", "i", NULL, offsetof(UnitStatusInfo, status_errno) }, { "ExecMainStartTimestamp", "t", NULL, offsetof(UnitStatusInfo, start_timestamp) }, { "ExecMainExitTimestamp", "t", NULL, offsetof(UnitStatusInfo, exit_timestamp) }, { "ExecMainCode", "i", NULL, offsetof(UnitStatusInfo, exit_code) }, { "ExecMainStatus", "i", NULL, offsetof(UnitStatusInfo, exit_status) }, { "ConditionTimestamp", "t", NULL, offsetof(UnitStatusInfo, condition_timestamp) }, { "ConditionResult", "b", NULL, offsetof(UnitStatusInfo, condition_result) }, { "Conditions", "a(sbbsi)", map_conditions, 0 }, { "AssertTimestamp", "t", NULL, offsetof(UnitStatusInfo, assert_timestamp) }, { "AssertResult", "b", NULL, offsetof(UnitStatusInfo, assert_result) }, { "Asserts", "a(sbbsi)", map_asserts, 0 }, { "NextElapseUSecRealtime", "t", NULL, offsetof(UnitStatusInfo, next_elapse_real) }, { "NextElapseUSecMonotonic", "t", NULL, offsetof(UnitStatusInfo, next_elapse_monotonic) }, { "NAccepted", "u", NULL, offsetof(UnitStatusInfo, n_accepted) }, { "NConnections", "u", NULL, offsetof(UnitStatusInfo, n_connections) }, { "NRefused", "u", NULL, offsetof(UnitStatusInfo, n_refused) }, { "Accept", "b", NULL, offsetof(UnitStatusInfo, accept) }, { "Listen", "a(ss)", map_listen, offsetof(UnitStatusInfo, listen) }, { "SysFSPath", "s", NULL, offsetof(UnitStatusInfo, sysfs_path) }, { "Where", "s", NULL, offsetof(UnitStatusInfo, where) }, { "What", "s", NULL, offsetof(UnitStatusInfo, what) }, { "MemoryCurrent", "t", NULL, offsetof(UnitStatusInfo, memory_current) }, { "DefaultMemoryMin", "t", NULL, offsetof(UnitStatusInfo, default_memory_min) }, { "DefaultMemoryLow", "t", NULL, offsetof(UnitStatusInfo, default_memory_low) }, { "MemoryMin", "t", NULL, offsetof(UnitStatusInfo, memory_min) }, { "MemoryLow", "t", NULL, offsetof(UnitStatusInfo, memory_low) }, { "MemoryHigh", "t", NULL, offsetof(UnitStatusInfo, memory_high) }, { "MemoryMax", "t", NULL, offsetof(UnitStatusInfo, memory_max) }, { "MemorySwapMax", "t", NULL, offsetof(UnitStatusInfo, memory_swap_max) }, { "MemoryLimit", "t", NULL, offsetof(UnitStatusInfo, memory_limit) }, { "CPUUsageNSec", "t", NULL, offsetof(UnitStatusInfo, cpu_usage_nsec) }, { "TasksCurrent", "t", NULL, offsetof(UnitStatusInfo, tasks_current) }, { "TasksMax", "t", NULL, offsetof(UnitStatusInfo, tasks_max) }, { "IPIngressBytes", "t", NULL, offsetof(UnitStatusInfo, ip_ingress_bytes) }, { "IPEgressBytes", "t", NULL, offsetof(UnitStatusInfo, ip_egress_bytes) }, { "IOReadBytes", "t", NULL, offsetof(UnitStatusInfo, io_read_bytes) }, { "IOWriteBytes", "t", NULL, offsetof(UnitStatusInfo, io_write_bytes) }, { "ExecCondition", "a(sasbttttuii)", map_exec, 0 }, { "ExecConditionEx", "a(sasasttttuii)", map_exec, 0 }, { "ExecStartPre", "a(sasbttttuii)", map_exec, 0 }, { "ExecStartPreEx", "a(sasasttttuii)", map_exec, 0 }, { "ExecStart", "a(sasbttttuii)", map_exec, 0 }, { "ExecStartEx", "a(sasasttttuii)", map_exec, 0 }, { "ExecStartPost", "a(sasbttttuii)", map_exec, 0 }, { "ExecStartPostEx", "a(sasasttttuii)", map_exec, 0 }, { "ExecReload", "a(sasbttttuii)", map_exec, 0 }, { "ExecReloadEx", "a(sasasttttuii)", map_exec, 0 }, { "ExecStopPre", "a(sasbttttuii)", map_exec, 0 }, { "ExecStop", "a(sasbttttuii)", map_exec, 0 }, { "ExecStopEx", "a(sasasttttuii)", map_exec, 0 }, { "ExecStopPost", "a(sasbttttuii)", map_exec, 0 }, { "ExecStopPostEx", "a(sasasttttuii)", map_exec, 0 }, {} }; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_set_free_ Set *found_properties = NULL; _cleanup_(unit_status_info_free) UnitStatusInfo info = { .memory_current = (uint64_t) -1, .memory_high = CGROUP_LIMIT_MAX, .memory_max = CGROUP_LIMIT_MAX, .memory_swap_max = CGROUP_LIMIT_MAX, .memory_limit = (uint64_t) -1, .cpu_usage_nsec = (uint64_t) -1, .tasks_current = (uint64_t) -1, .tasks_max = (uint64_t) -1, .ip_ingress_bytes = (uint64_t) -1, .ip_egress_bytes = (uint64_t) -1, .io_read_bytes = UINT64_MAX, .io_write_bytes = UINT64_MAX, }; char **pp; int r; assert(path); assert(new_line); log_debug("Showing one %s", path); r = bus_map_all_properties( bus, "org.freedesktop.systemd1", path, show_mode == SYSTEMCTL_SHOW_STATUS ? status_map : property_map, BUS_MAP_BOOLEAN_AS_BOOL, &error, &reply, &info); if (r < 0) return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r)); if (unit && streq_ptr(info.load_state, "not-found") && streq_ptr(info.active_state, "inactive")) { log_full(show_mode == SYSTEMCTL_SHOW_STATUS ? LOG_ERR : LOG_DEBUG, "Unit %s could not be found.", unit); if (show_mode == SYSTEMCTL_SHOW_STATUS) return EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN; else if (show_mode == SYSTEMCTL_SHOW_HELP) return -ENOENT; } if (*new_line) printf("\n"); *new_line = true; if (show_mode == SYSTEMCTL_SHOW_STATUS) { print_status_info(bus, &info, ellipsized); if (info.active_state && !STR_IN_SET(info.active_state, "active", "reloading")) return EXIT_PROGRAM_NOT_RUNNING; return EXIT_PROGRAM_RUNNING_OR_SERVICE_OK; } else if (show_mode == SYSTEMCTL_SHOW_HELP) { show_unit_help(&info); return 0; } r = sd_bus_message_rewind(reply, true); if (r < 0) return log_error_errno(r, "Failed to rewind: %s", bus_error_message(&error, r)); r = bus_message_print_all_properties(reply, print_property, arg_properties, arg_value, arg_all, &found_properties); if (r < 0) return bus_log_parse_error(r); STRV_FOREACH(pp, arg_properties) if (!set_contains(found_properties, *pp)) log_debug("Property %s does not exist.", *pp); return 0; } static int get_unit_dbus_path_by_pid( sd_bus *bus, uint32_t pid, char **unit) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; char *u; int r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GetUnitByPID", &error, &reply, "u", pid); if (r < 0) return log_error_errno(r, "Failed to get unit for PID %"PRIu32": %s", pid, bus_error_message(&error, r)); r = sd_bus_message_read(reply, "o", &u); if (r < 0) return bus_log_parse_error(r); u = strdup(u); if (!u) return log_oom(); *unit = u; return 0; } static int show_all( sd_bus *bus, bool *new_line, bool *ellipsized) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; const UnitInfo *u; unsigned c; int r, ret = 0; r = get_unit_list(bus, NULL, NULL, &unit_infos, 0, &reply); if (r < 0) return r; (void) pager_open(arg_pager_flags); c = (unsigned) r; typesafe_qsort(unit_infos, c, compare_unit_info); for (u = unit_infos; u < unit_infos + c; u++) { _cleanup_free_ char *p = NULL; p = unit_dbus_path_from_name(u->id); if (!p) return log_oom(); r = show_one(bus, p, u->id, SYSTEMCTL_SHOW_STATUS, new_line, ellipsized); if (r < 0) return r; else if (r > 0 && ret == 0) ret = r; } return ret; } static int show_system_status(sd_bus *bus) { char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX]; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(machine_info_clear) struct machine_info mi = {}; _cleanup_free_ char *hn = NULL; const char *on, *off; int r; hn = gethostname_malloc(); if (!hn) return log_oom(); r = bus_map_all_properties( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, BUS_MAP_STRDUP, &error, NULL, &mi); if (r < 0) return log_error_errno(r, "Failed to read server status: %s", bus_error_message(&error, r)); if (streq_ptr(mi.state, "degraded")) { on = ansi_highlight_red(); off = ansi_normal(); } else if (streq_ptr(mi.state, "running")) { on = ansi_highlight_green(); off = ansi_normal(); } else { on = ansi_highlight_yellow(); off = ansi_normal(); } printf("%s%s%s %s\n", on, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off, arg_host ? arg_host : hn); printf(" State: %s%s%s\n", on, strna(mi.state), off); printf(" Jobs: %" PRIu32 " queued\n", mi.n_jobs); printf(" Failed: %" PRIu32 " units\n", mi.n_failed_units); printf(" Since: %s; %s\n", format_timestamp(since2, sizeof(since2), mi.timestamp), format_timestamp_relative(since1, sizeof(since1), mi.timestamp)); printf(" CGroup: %s\n", mi.control_group ?: "/"); if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) { static const char prefix[] = " "; unsigned c; c = columns(); if (c > sizeof(prefix) - 1) c -= sizeof(prefix) - 1; else c = 0; show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, get_output_flags()); } return 0; } static int show(int argc, char *argv[], void *userdata) { bool new_line = false, ellipsized = false; SystemctlShowMode show_mode; int r, ret = 0; sd_bus *bus; assert(argv); show_mode = systemctl_show_mode_from_string(argv[0]); if (show_mode < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid argument."); if (show_mode == SYSTEMCTL_SHOW_HELP && argc <= 1) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This command expects one or more unit names. Did you mean --help?"); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; (void) pager_open(arg_pager_flags); /* If no argument is specified inspect the manager itself */ if (show_mode == SYSTEMCTL_SHOW_PROPERTIES && argc <= 1) return show_one(bus, "/org/freedesktop/systemd1", NULL, show_mode, &new_line, &ellipsized); if (show_mode == SYSTEMCTL_SHOW_STATUS && argc <= 1) { show_system_status(bus); new_line = true; if (arg_all) ret = show_all(bus, &new_line, &ellipsized); } else { _cleanup_free_ char **patterns = NULL; char **name; STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_free_ char *path = NULL, *unit = NULL; uint32_t id; if (safe_atou32(*name, &id) < 0) { if (strv_push(&patterns, *name) < 0) return log_oom(); continue; } else if (show_mode == SYSTEMCTL_SHOW_PROPERTIES) { /* Interpret as job id */ if (asprintf(&path, "/org/freedesktop/systemd1/job/%u", id) < 0) return log_oom(); } else { /* Interpret as PID */ r = get_unit_dbus_path_by_pid(bus, id, &path); if (r < 0) { ret = r; continue; } r = unit_name_from_dbus_path(path, &unit); if (r < 0) return log_oom(); } r = show_one(bus, path, unit, show_mode, &new_line, &ellipsized); if (r < 0) return r; else if (r > 0 && ret == 0) ret = r; } if (!strv_isempty(patterns)) { _cleanup_strv_free_ char **names = NULL; r = expand_names(bus, patterns, NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); STRV_FOREACH(name, names) { _cleanup_free_ char *path; path = unit_dbus_path_from_name(*name); if (!path) return log_oom(); r = show_one(bus, path, *name, show_mode, &new_line, &ellipsized); if (r < 0) return r; if (r > 0 && ret == 0) ret = r; } } } if (ellipsized && !arg_quiet) printf("Hint: Some lines were ellipsized, use -l to show in full.\n"); return ret; } static int cat(int argc, char *argv[], void *userdata) { _cleanup_(lookup_paths_free) LookupPaths lp = {}; _cleanup_strv_free_ char **names = NULL; char **name; sd_bus *bus; bool first = true; int r; /* Include all units by default — i.e. continue as if the --all * option was used */ if (strv_isempty(arg_states)) arg_all = true; if (arg_transport != BUS_TRANSPORT_LOCAL) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot remotely cat units."); r = lookup_paths_init(&lp, arg_scope, 0, arg_root); if (r < 0) return log_error_errno(r, "Failed to determine unit paths: %m"); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = expand_names(bus, strv_skip(argv, 1), NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); (void) pager_open(arg_pager_flags); STRV_FOREACH(name, names) { _cleanup_free_ char *fragment_path = NULL; _cleanup_strv_free_ char **dropin_paths = NULL; r = unit_find_paths(bus, *name, &lp, false, &fragment_path, &dropin_paths); if (r == -ERFKILL) { printf("%s# Unit %s is masked%s.\n", ansi_highlight_magenta(), *name, ansi_normal()); continue; } if (r == -EKEYREJECTED) { printf("%s# Unit %s could not be loaded.%s\n", ansi_highlight_magenta(), *name, ansi_normal()); continue; } if (r < 0) return r; if (r == 0) return -ENOENT; if (first) first = false; else puts(""); if (need_daemon_reload(bus, *name) > 0) /* ignore errors (<0), this is informational output */ fprintf(stderr, "%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n" "%s# This output shows the current version of the unit's original fragment and drop-in files.\n" "%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n" "%s# Run 'systemctl%s daemon-reload' to reload units.%s\n", ansi_highlight_red(), *name, ansi_highlight_red(), ansi_highlight_red(), ansi_highlight_red(), arg_scope == UNIT_FILE_SYSTEM ? "" : " --user", ansi_normal()); r = cat_files(fragment_path, dropin_paths, 0); if (r < 0) return r; } return 0; } static int set_property(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *n = NULL; UnitType t; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SetUnitProperties"); if (r < 0) return bus_log_create_error(r); r = unit_name_mangle(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &n); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); t = unit_name_to_type(n); if (t < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid unit type: %s", n); r = sd_bus_message_append(m, "sb", n, arg_runtime); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)"); if (r < 0) return bus_log_create_error(r); r = bus_append_unit_property_assignment_many(m, t, strv_skip(argv, 2)); if (r < 0) return r; r = sd_bus_message_close_container(m); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, NULL); if (r < 0) return log_error_errno(r, "Failed to set unit properties on %s: %s", n, bus_error_message(&error, r)); return 0; } static int daemon_reload(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; const char *method; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); switch (arg_action) { case ACTION_RELOAD: method = "Reload"; break; case ACTION_REEXEC: method = "Reexecute"; break; case ACTION_SYSTEMCTL: method = streq(argv[0], "daemon-reexec") ? "Reexecute" : /* "daemon-reload" */ "Reload"; break; default: assert_not_reached("Unexpected action"); } r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method); if (r < 0) return bus_log_create_error(r); /* Note we use an extra-long timeout here. This is because a reload or reexec means generators are rerun which * are timed out after DEFAULT_TIMEOUT_USEC. Let's use twice that time here, so that the generators can have * their timeout, and for everything else there's the same time budget in place. */ r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL); /* On reexecution, we expect a disconnect, not a reply */ if (IN_SET(r, -ETIMEDOUT, -ECONNRESET) && streq(method, "Reexecute")) r = 0; if (r < 0 && arg_action == ACTION_SYSTEMCTL) return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r)); /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the * old ways of doing things, hence don't log any error in that case here. */ return r < 0 ? r : 0; } static int trivial_method(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; const char *method; sd_bus *bus; int r; if (arg_dry_run) return 0; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); method = streq(argv[0], "clear-jobs") || streq(argv[0], "cancel") ? "ClearJobs" : streq(argv[0], "reset-failed") ? "ResetFailed" : streq(argv[0], "halt") ? "Halt" : streq(argv[0], "reboot") ? "Reboot" : streq(argv[0], "kexec") ? "KExec" : streq(argv[0], "exit") ? "Exit" : /* poweroff */ "PowerOff"; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method, &error, NULL, NULL); if (r < 0 && arg_action == ACTION_SYSTEMCTL) return log_error_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r)); /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the * old ways of doing things, hence don't log any error in that case here. */ return r < 0 ? r : 0; } static int reset_failed(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **names = NULL; sd_bus *bus; char **name; int r, q; if (argc <= 1) return trivial_method(argc, argv, userdata); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); r = expand_names(bus, strv_skip(argv, 1), NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); STRV_FOREACH(name, names) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; q = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "ResetFailedUnit", &error, NULL, "s", *name); if (q < 0) { log_error_errno(q, "Failed to reset failed state of unit %s: %s", *name, bus_error_message(&error, q)); if (r == 0) r = q; } } return r; } static int print_variable(const char *s) { const char *sep; _cleanup_free_ char *esc = NULL; sep = strchr(s, '='); if (!sep) return log_error_errno(SYNTHETIC_ERRNO(EUCLEAN), "Invalid environment block"); esc = shell_maybe_quote(sep + 1, ESCAPE_POSIX); if (!esc) return log_oom(); printf("%.*s=%s\n", (int)(sep-s), s, esc); return 0; } static int show_environment(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *text; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; (void) pager_open(arg_pager_flags); r = sd_bus_get_property( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "Environment", &error, &reply, "as"); if (r < 0) return log_error_errno(r, "Failed to get environment: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0) { r = print_variable(text); if (r < 0) return r; } if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return 0; } static int switch_root(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *cmdline_init = NULL; const char *root, *init; sd_bus *bus; int r; if (arg_transport != BUS_TRANSPORT_LOCAL) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot switch root remotely."); if (argc < 2 || argc > 3) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Wrong number of arguments."); root = argv[1]; if (argc >= 3) init = argv[2]; else { r = proc_cmdline_get_key("init", 0, &cmdline_init); if (r < 0) log_debug_errno(r, "Failed to parse /proc/cmdline: %m"); init = cmdline_init; } init = empty_to_null(init); if (init) { const char *root_systemd_path = NULL, *root_init_path = NULL; root_systemd_path = prefix_roota(root, "/" SYSTEMD_BINARY_PATH); root_init_path = prefix_roota(root, init); /* If the passed init is actually the same as the * systemd binary, then let's suppress it. */ if (files_same(root_init_path, root_systemd_path, 0) > 0) init = NULL; } /* Instruct PID1 to exclude us from its killing spree applied during the transition. Otherwise we * would exit with a failure status even though the switch to the new root has succeed. */ assert(saved_argv); assert(saved_argv[0]); saved_argv[0][0] = '@'; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; /* If we are slow to exit after the root switch, the new systemd instance * will send us a signal to terminate. Just ignore it and exit normally. * This way the unit does not end up as failed. */ r = ignore_signals(SIGTERM, -1); if (r < 0) log_warning_errno(r, "Failed to change disposition of SIGTERM to ignore: %m"); log_debug("Switching root - root: %s; init: %s", root, strna(init)); r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SwitchRoot", &error, NULL, "ss", root, init); if (r < 0) { (void) default_signals(SIGTERM, -1); return log_error_errno(r, "Failed to switch root: %s", bus_error_message(&error, r)); } return 0; } static int set_environment(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; const char *method; sd_bus *bus; int r; assert(argc > 1); assert(argv); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); method = streq(argv[0], "set-environment") ? "SetEnvironment" : "UnsetEnvironment"; r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, strv_skip(argv, 1)); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, NULL); if (r < 0) return log_error_errno(r, "Failed to set environment: %s", bus_error_message(&error, r)); return 0; } static int import_environment(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; sd_bus *bus; int r; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SetEnvironment"); if (r < 0) return bus_log_create_error(r); if (argc < 2) r = sd_bus_message_append_strv(m, environ); else { char **a, **b; r = sd_bus_message_open_container(m, 'a', "s"); if (r < 0) return bus_log_create_error(r); STRV_FOREACH(a, strv_skip(argv, 1)) { if (!env_name_is_valid(*a)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Not a valid environment variable name: %s", *a); STRV_FOREACH(b, environ) { const char *eq; eq = startswith(*b, *a); if (eq && *eq == '=') { r = sd_bus_message_append(m, "s", *b); if (r < 0) return bus_log_create_error(r); break; } } } r = sd_bus_message_close_container(m); } if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, NULL); if (r < 0) return log_error_errno(r, "Failed to import environment: %s", bus_error_message(&error, r)); return 0; } static int enable_sysv_units(const char *verb, char **args) { int r = 0; #if HAVE_SYSV_COMPAT _cleanup_(lookup_paths_free) LookupPaths paths = {}; unsigned f = 0; /* Processes all SysV units, and reshuffles the array so that afterwards only the native units remain */ if (arg_scope != UNIT_FILE_SYSTEM) return 0; if (getenv_bool("SYSTEMCTL_SKIP_SYSV") > 0) return 0; if (!STR_IN_SET(verb, "enable", "disable", "is-enabled")) return 0; r = lookup_paths_init(&paths, arg_scope, LOOKUP_PATHS_EXCLUDE_GENERATED, arg_root); if (r < 0) return r; r = 0; while (args[f]) { const char *argv[] = { ROOTLIBEXECDIR "/systemd-sysv-install", NULL, /* --root= */ NULL, /* verb */ NULL, /* service */ NULL, }; _cleanup_free_ char *p = NULL, *q = NULL, *l = NULL, *v = NULL; bool found_native = false, found_sysv; const char *name; unsigned c = 1; pid_t pid; int j; name = args[f++]; if (!endswith(name, ".service")) continue; if (path_is_absolute(name)) continue; j = unit_file_exists(arg_scope, &paths, name); if (j < 0 && !IN_SET(j, -ELOOP, -ERFKILL, -EADDRNOTAVAIL)) return log_error_errno(j, "Failed to lookup unit file state: %m"); found_native = j != 0; /* If we have both a native unit and a SysV script, enable/disable them both (below); for is-enabled, * prefer the native unit */ if (found_native && streq(verb, "is-enabled")) continue; p = path_join(arg_root, SYSTEM_SYSVINIT_PATH, name); if (!p) return log_oom(); p[strlen(p) - STRLEN(".service")] = 0; found_sysv = access(p, F_OK) >= 0; if (!found_sysv) continue; if (!arg_quiet) { if (found_native) log_info("Synchronizing state of %s with SysV service script with %s.", name, argv[0]); else log_info("%s is not a native service, redirecting to systemd-sysv-install.", name); } if (!isempty(arg_root)) { q = strjoin("--root=", arg_root); if (!q) return log_oom(); argv[c++] = q; } /* Let's copy the verb, since it's still pointing directly into the original argv[] array we * got passed, but safe_fork() is likely going to rewrite that for the new child */ v = strdup(verb); if (!v) return log_oom(); argv[c++] = v; argv[c++] = basename(p); argv[c] = NULL; l = strv_join((char**)argv, " "); if (!l) return log_oom(); if (!arg_quiet) log_info("Executing: %s", l); j = safe_fork("(sysv-install)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid); if (j < 0) return j; if (j == 0) { /* Child */ execv(argv[0], (char**) argv); log_error_errno(errno, "Failed to execute %s: %m", argv[0]); _exit(EXIT_FAILURE); } j = wait_for_terminate_and_check("sysv-install", pid, WAIT_LOG_ABNORMAL); if (j < 0) return j; if (streq(verb, "is-enabled")) { if (j == EXIT_SUCCESS) { if (!arg_quiet) puts("enabled"); r = 1; } else { if (!arg_quiet) puts("disabled"); } } else if (j != EXIT_SUCCESS) return -EBADE; /* We don't warn here, under the assumption the script already showed an explanation */ if (found_native) continue; /* Remove this entry, so that we don't try enabling it as native unit */ assert(f > 0); f--; assert(args[f] == name); strv_remove(args + f, name); } #endif return r; } static int mangle_names(char **original_names, char ***mangled_names) { char **i, **l, **name; int r; l = i = new(char*, strv_length(original_names) + 1); if (!l) return log_oom(); STRV_FOREACH(name, original_names) { /* When enabling units qualified path names are OK, * too, hence allow them explicitly. */ if (is_path(*name)) { *i = strdup(*name); if (!*i) { strv_free(l); return log_oom(); } } else { r = unit_name_mangle(*name, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, i); if (r < 0) { *i = NULL; strv_free(l); return log_error_errno(r, "Failed to mangle unit name: %m"); } } i++; } *i = NULL; *mangled_names = l; return 0; } static int normalize_filenames(char **names) { char **u; int r; STRV_FOREACH(u, names) if (!path_is_absolute(*u)) { char* normalized_path; if (!isempty(arg_root)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Non-absolute paths are not allowed when --root is used: %s", *u); if (!strchr(*u,'/')) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Link argument does contain at least one directory separator: %s", *u); r = path_make_absolute_cwd(*u, &normalized_path); if (r < 0) return r; free_and_replace(*u, normalized_path); } return 0; } static int normalize_names(char **names, bool warn_if_path) { char **u; bool was_path = false; STRV_FOREACH(u, names) { int r; if (!is_path(*u)) continue; r = free_and_strdup(u, basename(*u)); if (r < 0) return log_error_errno(r, "Failed to normalize unit file path: %m"); was_path = true; } if (warn_if_path && was_path) log_warning("Warning: Can't execute disable on the unit file path. Proceeding with the unit name."); return 0; } static int unit_exists(LookupPaths *lp, const char *unit) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; _cleanup_free_ char *path = NULL; static const struct bus_properties_map property_map[] = { { "LoadState", "s", NULL, offsetof(UnitStatusInfo, load_state) }, { "ActiveState", "s", NULL, offsetof(UnitStatusInfo, active_state)}, {}, }; UnitStatusInfo info = {}; sd_bus *bus; int r; if (unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) return unit_find_template_path(unit, lp, NULL, NULL); path = unit_dbus_path_from_name(unit); if (!path) return log_oom(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = bus_map_all_properties(bus, "org.freedesktop.systemd1", path, property_map, 0, &error, &m, &info); if (r < 0) return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r)); return !streq_ptr(info.load_state, "not-found") || !streq_ptr(info.active_state, "inactive"); } static int enable_unit(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **names = NULL; const char *verb = argv[0]; UnitFileChange *changes = NULL; size_t n_changes = 0; int carries_install_info = -1; bool ignore_carries_install_info = arg_quiet; int r; if (!argv[1]) return 0; r = mangle_names(strv_skip(argv, 1), &names); if (r < 0) return r; r = enable_sysv_units(verb, names); if (r < 0) return r; /* If the operation was fully executed by the SysV compat, let's finish early */ if (strv_isempty(names)) { if (arg_no_reload || install_client_side()) return 0; return daemon_reload(argc, argv, userdata); } if (streq(verb, "disable")) { r = normalize_names(names, true); if (r < 0) return r; } if (streq(verb, "link")) { r = normalize_filenames(names); if (r < 0) return r; } if (install_client_side()) { UnitFileFlags flags; flags = args_to_flags(); if (streq(verb, "enable")) { r = unit_file_enable(arg_scope, flags, arg_root, names, &changes, &n_changes); carries_install_info = r; } else if (streq(verb, "disable")) r = unit_file_disable(arg_scope, flags, arg_root, names, &changes, &n_changes); else if (streq(verb, "reenable")) { r = unit_file_reenable(arg_scope, flags, arg_root, names, &changes, &n_changes); carries_install_info = r; } else if (streq(verb, "link")) r = unit_file_link(arg_scope, flags, arg_root, names, &changes, &n_changes); else if (streq(verb, "preset")) { r = unit_file_preset(arg_scope, flags, arg_root, names, arg_preset_mode, &changes, &n_changes); } else if (streq(verb, "mask")) r = unit_file_mask(arg_scope, flags, arg_root, names, &changes, &n_changes); else if (streq(verb, "unmask")) r = unit_file_unmask(arg_scope, flags, arg_root, names, &changes, &n_changes); else if (streq(verb, "revert")) r = unit_file_revert(arg_scope, arg_root, names, &changes, &n_changes); else assert_not_reached("Unknown verb"); unit_file_dump_changes(r, verb, changes, n_changes, arg_quiet); if (r < 0) goto finish; r = 0; } else { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; bool expect_carries_install_info = false; bool send_runtime = true, send_force = true, send_preset_mode = false; const char *method; sd_bus *bus; if (STR_IN_SET(verb, "mask", "unmask")) { char **name; _cleanup_(lookup_paths_free) LookupPaths lp = {}; r = lookup_paths_init(&lp, arg_scope, 0, arg_root); if (r < 0) return r; STRV_FOREACH(name, names) { r = unit_exists(&lp, *name); if (r < 0) return r; if (r == 0) log_notice("Unit %s does not exist, proceeding anyway.", *name); } } r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); if (streq(verb, "enable")) { method = "EnableUnitFiles"; expect_carries_install_info = true; } else if (streq(verb, "disable")) { method = "DisableUnitFiles"; send_force = false; } else if (streq(verb, "reenable")) { method = "ReenableUnitFiles"; expect_carries_install_info = true; } else if (streq(verb, "link")) method = "LinkUnitFiles"; else if (streq(verb, "preset")) { if (arg_preset_mode != UNIT_FILE_PRESET_FULL) { method = "PresetUnitFilesWithMode"; send_preset_mode = true; } else method = "PresetUnitFiles"; expect_carries_install_info = true; ignore_carries_install_info = true; } else if (streq(verb, "mask")) method = "MaskUnitFiles"; else if (streq(verb, "unmask")) { method = "UnmaskUnitFiles"; send_force = false; } else if (streq(verb, "revert")) { method = "RevertUnitFiles"; send_runtime = send_force = false; } else assert_not_reached("Unknown verb"); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, names); if (r < 0) return bus_log_create_error(r); if (send_preset_mode) { r = sd_bus_message_append(m, "s", unit_file_preset_mode_to_string(arg_preset_mode)); if (r < 0) return bus_log_create_error(r); } if (send_runtime) { r = sd_bus_message_append(m, "b", arg_runtime); if (r < 0) return bus_log_create_error(r); } if (send_force) { r = sd_bus_message_append(m, "b", arg_force); if (r < 0) return bus_log_create_error(r); } r = sd_bus_call(bus, m, 0, &error, &reply); if (r < 0) return log_error_errno(r, "Failed to %s unit: %s", verb, bus_error_message(&error, r)); if (expect_carries_install_info) { r = sd_bus_message_read(reply, "b", &carries_install_info); if (r < 0) return bus_log_parse_error(r); } r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes); if (r < 0) goto finish; /* Try to reload if enabled */ if (!arg_no_reload) r = daemon_reload(argc, argv, userdata); else r = 0; } if (carries_install_info == 0 && !ignore_carries_install_info) log_notice("The unit files have no installation config (WantedBy=, RequiredBy=, Also=,\n" "Alias= settings in the [Install] section, and DefaultInstance= for template\n" "units). This means they are not meant to be enabled using systemctl.\n" " \n" /* trick: the space is needed so that the line does not get stripped from output */ "Possible reasons for having this kind of units are:\n" "%1$s A unit may be statically enabled by being symlinked from another unit's\n" " .wants/ or .requires/ directory.\n" "%1$s A unit's purpose may be to act as a helper for some other unit which has\n" " a requirement dependency on it.\n" "%1$s A unit may be started when needed via activation (socket, path, timer,\n" " D-Bus, udev, scripted systemctl call, ...).\n" "%1$s In case of template units, the unit is meant to be enabled with some\n" " instance name specified.", special_glyph(SPECIAL_GLYPH_BULLET)); if (arg_now && STR_IN_SET(argv[0], "enable", "disable", "mask")) { sd_bus *bus; size_t len, i; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) goto finish; len = strv_length(names); { char *new_args[len + 2]; new_args[0] = (char*) (streq(argv[0], "enable") ? "start" : "stop"); for (i = 0; i < len; i++) new_args[i + 1] = basename(names[i]); new_args[i + 1] = NULL; r = start_unit(len + 1, new_args, userdata); } } finish: unit_file_changes_free(changes, n_changes); return r; } static int add_dependency(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **names = NULL; _cleanup_free_ char *target = NULL; const char *verb = argv[0]; UnitFileChange *changes = NULL; size_t n_changes = 0; UnitDependency dep; int r = 0; if (!argv[1]) return 0; r = unit_name_mangle_with_suffix(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, ".target", &target); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); r = mangle_names(strv_skip(argv, 2), &names); if (r < 0) return r; if (streq(verb, "add-wants")) dep = UNIT_WANTS; else if (streq(verb, "add-requires")) dep = UNIT_REQUIRES; else assert_not_reached("Unknown verb"); if (install_client_side()) { r = unit_file_add_dependency(arg_scope, args_to_flags(), arg_root, names, target, dep, &changes, &n_changes); unit_file_dump_changes(r, "add dependency on", changes, n_changes, arg_quiet); if (r > 0) r = 0; } else { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); r = sd_bus_message_new_method_call( bus, &m, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "AddDependencyUnitFiles"); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(m, names); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append(m, "ssbb", target, unit_dependency_to_string(dep), arg_runtime, arg_force); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, m, 0, &error, &reply); if (r < 0) return log_error_errno(r, "Failed to add dependency: %s", bus_error_message(&error, r)); r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes); if (r < 0) goto finish; if (arg_no_reload) { r = 0; goto finish; } r = daemon_reload(argc, argv, userdata); } finish: unit_file_changes_free(changes, n_changes); return r; } static int preset_all(int argc, char *argv[], void *userdata) { UnitFileChange *changes = NULL; size_t n_changes = 0; int r; if (install_client_side()) { r = unit_file_preset_all(arg_scope, args_to_flags(), arg_root, arg_preset_mode, &changes, &n_changes); unit_file_dump_changes(r, "preset", changes, n_changes, arg_quiet); if (r > 0) r = 0; } else { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; sd_bus *bus; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; polkit_agent_open_maybe(); r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "PresetAllUnitFiles", &error, &reply, "sbb", unit_file_preset_mode_to_string(arg_preset_mode), arg_runtime, arg_force); if (r < 0) return log_error_errno(r, "Failed to preset all units: %s", bus_error_message(&error, r)); r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes); if (r < 0) goto finish; if (arg_no_reload) { r = 0; goto finish; } r = daemon_reload(argc, argv, userdata); } finish: unit_file_changes_free(changes, n_changes); return r; } static int show_installation_targets_client_side(const char *name) { UnitFileChange *changes = NULL; size_t n_changes = 0, i; UnitFileFlags flags; char **p; int r; p = STRV_MAKE(name); flags = UNIT_FILE_DRY_RUN | (arg_runtime ? UNIT_FILE_RUNTIME : 0); r = unit_file_disable(UNIT_FILE_SYSTEM, flags, NULL, p, &changes, &n_changes); if (r < 0) return log_error_errno(r, "Failed to get file links for %s: %m", name); for (i = 0; i < n_changes; i++) if (changes[i].type == UNIT_FILE_UNLINK) printf(" %s\n", changes[i].path); return 0; } static int show_installation_targets(sd_bus *bus, const char *name) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; const char *link; int r; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GetUnitFileLinks", &error, &reply, "sb", name, arg_runtime); if (r < 0) return log_error_errno(r, "Failed to get unit file links for %s: %s", name, bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(reply, "s", &link)) > 0) printf(" %s\n", link); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return 0; } static int unit_is_enabled(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **names = NULL; bool enabled; char **name; int r; r = mangle_names(strv_skip(argv, 1), &names); if (r < 0) return r; r = enable_sysv_units(argv[0], names); if (r < 0) return r; enabled = r > 0; if (install_client_side()) { STRV_FOREACH(name, names) { UnitFileState state; r = unit_file_get_state(arg_scope, arg_root, *name, &state); if (r < 0) return log_error_errno(r, "Failed to get unit file state for %s: %m", *name); if (IN_SET(state, UNIT_FILE_ENABLED, UNIT_FILE_ENABLED_RUNTIME, UNIT_FILE_STATIC, UNIT_FILE_INDIRECT, UNIT_FILE_GENERATED)) enabled = true; if (!arg_quiet) { puts(unit_file_state_to_string(state)); if (arg_full) { r = show_installation_targets_client_side(*name); if (r < 0) return r; } } } r = 0; } else { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; STRV_FOREACH(name, names) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *s; r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GetUnitFileState", &error, &reply, "s", *name); if (r < 0) return log_error_errno(r, "Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r)); r = sd_bus_message_read(reply, "s", &s); if (r < 0) return bus_log_parse_error(r); if (STR_IN_SET(s, "enabled", "enabled-runtime", "static", "indirect", "generated")) enabled = true; if (!arg_quiet) { puts(s); if (arg_full) { r = show_installation_targets(bus, *name); if (r < 0) return r; } } } } return enabled ? EXIT_SUCCESS : EXIT_FAILURE; } static int match_startup_finished(sd_bus_message *m, void *userdata, sd_bus_error *error) { char **state = userdata; int r; assert(state); r = sd_bus_get_property_string( sd_bus_message_get_bus(m), "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SystemState", NULL, state); sd_event_exit(sd_bus_get_event(sd_bus_message_get_bus(m)), r); return 0; } static int is_system_running(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_slot_unrefp) sd_bus_slot *slot_startup_finished = NULL; _cleanup_(sd_event_unrefp) sd_event* event = NULL; _cleanup_free_ char *state = NULL; sd_bus *bus; int r; if (running_in_chroot() > 0 || (arg_transport == BUS_TRANSPORT_LOCAL && !sd_booted())) { if (!arg_quiet) puts("offline"); return EXIT_FAILURE; } r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; if (arg_wait) { r = sd_event_default(&event); if (r >= 0) r = sd_bus_attach_event(bus, event, 0); if (r >= 0) r = sd_bus_match_signal_async( bus, &slot_startup_finished, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "StartupFinished", match_startup_finished, NULL, &state); if (r < 0) { log_warning_errno(r, "Failed to request match for StartupFinished: %m"); arg_wait = false; } } r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SystemState", &error, &state); if (r < 0) { log_warning_errno(r, "Failed to query system state: %s", bus_error_message(&error, r)); if (!arg_quiet) puts("unknown"); return EXIT_FAILURE; } if (arg_wait && STR_IN_SET(state, "initializing", "starting")) { r = sd_event_loop(event); if (r < 0) { log_warning_errno(r, "Failed to get property from event loop: %m"); if (!arg_quiet) puts("unknown"); return EXIT_FAILURE; } } if (!arg_quiet) puts(state); return streq(state, "running") ? EXIT_SUCCESS : EXIT_FAILURE; } static int create_edit_temp_file(const char *new_path, const char *original_path, char **ret_tmp_fn) { _cleanup_free_ char *t = NULL; int r; assert(new_path); assert(original_path); assert(ret_tmp_fn); r = tempfn_random(new_path, NULL, &t); if (r < 0) return log_error_errno(r, "Failed to determine temporary filename for \"%s\": %m", new_path); r = mkdir_parents(new_path, 0755); if (r < 0) return log_error_errno(r, "Failed to create directories for \"%s\": %m", new_path); r = copy_file(original_path, t, 0, 0644, 0, 0, COPY_REFLINK); if (r == -ENOENT) { r = touch(t); if (r < 0) return log_error_errno(r, "Failed to create temporary file \"%s\": %m", t); } else if (r < 0) return log_error_errno(r, "Failed to create temporary file for \"%s\": %m", new_path); *ret_tmp_fn = TAKE_PTR(t); return 0; } static int get_file_to_edit( const LookupPaths *paths, const char *name, char **ret_path) { _cleanup_free_ char *path = NULL, *run = NULL; assert(name); assert(ret_path); path = path_join(paths->persistent_config, name); if (!path) return log_oom(); if (arg_runtime) { run = path_join(paths->runtime_config, name); if (!run) return log_oom(); } if (arg_runtime) { if (access(path, F_OK) >= 0) return log_error_errno(SYNTHETIC_ERRNO(EEXIST), "Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.", run, path); *ret_path = TAKE_PTR(run); } else *ret_path = TAKE_PTR(path); return 0; } static int unit_file_create_new( const LookupPaths *paths, const char *unit_name, const char *suffix, char **ret_new_path, char **ret_tmp_path) { _cleanup_free_ char *new_path = NULL, *tmp_path = NULL; const char *ending; int r; assert(unit_name); assert(ret_new_path); assert(ret_tmp_path); ending = strjoina(unit_name, suffix); r = get_file_to_edit(paths, ending, &new_path); if (r < 0) return r; r = create_edit_temp_file(new_path, new_path, &tmp_path); if (r < 0) return r; *ret_new_path = TAKE_PTR(new_path); *ret_tmp_path = TAKE_PTR(tmp_path); return 0; } static int unit_file_create_copy( const LookupPaths *paths, const char *unit_name, const char *fragment_path, char **ret_new_path, char **ret_tmp_path) { _cleanup_free_ char *new_path = NULL, *tmp_path = NULL; int r; assert(fragment_path); assert(unit_name); assert(ret_new_path); assert(ret_tmp_path); r = get_file_to_edit(paths, unit_name, &new_path); if (r < 0) return r; if (!path_equal(fragment_path, new_path) && access(new_path, F_OK) >= 0) { char response; r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", new_path, fragment_path); if (r < 0) return r; if (response != 'y') return log_warning_errno(SYNTHETIC_ERRNO(EKEYREJECTED), "%s skipped.", unit_name); } r = create_edit_temp_file(new_path, fragment_path, &tmp_path); if (r < 0) return r; *ret_new_path = TAKE_PTR(new_path); *ret_tmp_path = TAKE_PTR(tmp_path); return 0; } static int run_editor(char **paths) { int r; assert(paths); r = safe_fork("(editor)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG|FORK_WAIT, NULL); if (r < 0) return r; if (r == 0) { char **editor_args = NULL, **tmp_path, **original_path; size_t n_editor_args = 0, i = 1, argc; const char **args, *editor, *p; argc = strv_length(paths)/2 + 1; /* SYSTEMD_EDITOR takes precedence over EDITOR which takes precedence over VISUAL * If neither SYSTEMD_EDITOR nor EDITOR nor VISUAL are present, * we try to execute well known editors */ editor = getenv("SYSTEMD_EDITOR"); if (!editor) editor = getenv("EDITOR"); if (!editor) editor = getenv("VISUAL"); if (!isempty(editor)) { editor_args = strv_split(editor, WHITESPACE); if (!editor_args) { (void) log_oom(); _exit(EXIT_FAILURE); } n_editor_args = strv_length(editor_args); argc += n_editor_args - 1; } args = newa(const char*, argc + 1); if (n_editor_args > 0) { args[0] = editor_args[0]; for (; i < n_editor_args; i++) args[i] = editor_args[i]; } STRV_FOREACH_PAIR(original_path, tmp_path, paths) args[i++] = *tmp_path; args[i] = NULL; if (n_editor_args > 0) execvp(args[0], (char* const*) args); FOREACH_STRING(p, "editor", "nano", "vim", "vi") { args[0] = p; execvp(p, (char* const*) args); /* We do not fail if the editor doesn't exist * because we want to try each one of them before * failing. */ if (errno != ENOENT) { log_error_errno(errno, "Failed to execute %s: %m", editor); _exit(EXIT_FAILURE); } } log_error("Cannot edit unit(s), no editor available. Please set either $SYSTEMD_EDITOR, $EDITOR or $VISUAL."); _exit(EXIT_FAILURE); } return 0; } static int find_paths_to_edit(sd_bus *bus, char **names, char ***paths) { _cleanup_(lookup_paths_free) LookupPaths lp = {}; char **name; int r; assert(names); assert(paths); r = lookup_paths_init(&lp, arg_scope, 0, arg_root); if (r < 0) return r; STRV_FOREACH(name, names) { _cleanup_free_ char *path = NULL, *new_path = NULL, *tmp_path = NULL, *tmp_name = NULL; const char *unit_name; r = unit_find_paths(bus, *name, &lp, false, &path, NULL); if (r == -EKEYREJECTED) { /* If loading of the unit failed server side complete, then the server won't tell us the unit * file path. In that case, find the file client side. */ log_debug_errno(r, "Unit '%s' was not loaded correctly, retrying client-side.", *name); r = unit_find_paths(bus, *name, &lp, true, &path, NULL); } if (r == -ERFKILL) return log_error_errno(r, "Unit '%s' masked, cannot edit.", *name); if (r < 0) return r; if (r == 0) { assert(!path); if (!arg_force) { log_info("Run 'systemctl edit%s --force --full %s' to create a new unit.", arg_scope == UNIT_FILE_GLOBAL ? " --global" : arg_scope == UNIT_FILE_USER ? " --user" : "", *name); return -ENOENT; } /* Create a new unit from scratch */ unit_name = *name; r = unit_file_create_new(&lp, unit_name, arg_full ? NULL : ".d/override.conf", &new_path, &tmp_path); } else { assert(path); unit_name = basename(path); /* We follow unit aliases, but we need to propagate the instance */ if (unit_name_is_valid(*name, UNIT_NAME_INSTANCE) && unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { _cleanup_free_ char *instance = NULL; r = unit_name_to_instance(*name, &instance); if (r < 0) return r; r = unit_name_replace_instance(unit_name, instance, &tmp_name); if (r < 0) return r; unit_name = tmp_name; } if (arg_full) r = unit_file_create_copy(&lp, unit_name, path, &new_path, &tmp_path); else r = unit_file_create_new(&lp, unit_name, ".d/override.conf", &new_path, &tmp_path); } if (r < 0) return r; r = strv_push_pair(paths, new_path, tmp_path); if (r < 0) return log_oom(); new_path = tmp_path = NULL; } return 0; } static int edit(int argc, char *argv[], void *userdata) { _cleanup_(lookup_paths_free) LookupPaths lp = {}; _cleanup_strv_free_ char **names = NULL; _cleanup_strv_free_ char **paths = NULL; char **original, **tmp; sd_bus *bus; int r; if (!on_tty()) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit units if not on a tty."); if (arg_transport != BUS_TRANSPORT_LOCAL) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit units remotely."); r = lookup_paths_init(&lp, arg_scope, 0, arg_root); if (r < 0) return log_error_errno(r, "Failed to determine unit paths: %m"); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = expand_names(bus, strv_skip(argv, 1), NULL, &names); if (r < 0) return log_error_errno(r, "Failed to expand names: %m"); STRV_FOREACH(tmp, names) { r = unit_is_masked(bus, &lp, *tmp); if (r < 0) return r; if (r > 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit %s: unit is masked.", *tmp); } r = find_paths_to_edit(bus, names, &paths); if (r < 0) return r; if (strv_isempty(paths)) return -ENOENT; r = run_editor(paths); if (r < 0) goto end; STRV_FOREACH_PAIR(original, tmp, paths) { /* If the temporary file is empty we ignore it. * This allows the user to cancel the modification. */ if (null_or_empty_path(*tmp)) { log_warning("Editing \"%s\" canceled: temporary file is empty.", *original); continue; } r = rename(*tmp, *original); if (r < 0) { r = log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", *tmp, *original); goto end; } } r = 0; if (!arg_no_reload && !install_client_side()) r = daemon_reload(argc, argv, userdata); end: STRV_FOREACH_PAIR(original, tmp, paths) { (void) unlink(*tmp); /* Removing empty dropin dirs */ if (!arg_full) { _cleanup_free_ char *dir; dir = dirname_malloc(*original); if (!dir) return log_oom(); /* no need to check if the dir is empty, rmdir * does nothing if it is not the case. */ (void) rmdir(dir); } } return r; } 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" "Query or send control commands to the systemd manager.\n\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\n" " Operate on remote host\n" " -M --machine=CONTAINER\n" " Operate on 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 Shorcut for --state=failed\n" " -p --property=NAME Show only properties by this name\n" " -a --all Show all properties/all units currently in memory,\n" " including dead/empty ones. To list all units installed on\n" " the system, use the 'list-unit-files' command 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" " --job-mode=MODE Specify how to deal with already queued jobs, when\n" " queueing a new job\n" " -T --show-transaction\n" " 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\n" " When shutting down or sleeping, ignore inhibitors\n" " --kill-who=WHO Who 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 in addition to enabling or disabling it\n" " --dry-run Only print what would be done\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\n" " 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\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" " 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" " or configuration of unit\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" " set-property UNIT PROPERTY=VALUE... Sets one or more properties of a unit\n" " help PATTERN...|PID... Show manual for one or more units\n" " reset-failed [PATTERN...] Reset failed state for all, one, or more\n" " units\n" " list-dependencies [UNIT] Recursively show units which are required\n" " or wanted by this unit or by which this\n" " unit is required or wanted\n\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$sManager Lifecycle Commands:%4$s\n" " daemon-reload Reload systemd manager configuration\n" " daemon-reexec Reexecute systemd manager\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 [ARG] 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 put it into hibernate\n" "\nSee the %2$s for details.\n" , program_invocation_short_name , link , ansi_underline(), ansi_normal() ); return 0; } static int halt_help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("halt", "8", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...]%s\n\n" "%s the system.\n\n" " --help Show this help\n" " --halt Halt the machine\n" " -p --poweroff Switch off the machine\n" " --reboot Reboot the machine\n" " -f --force Force immediate halt/power-off/reboot\n" " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n" " -d --no-wtmp Don't write wtmp record\n" " --no-wall Don't send wall message before halt/power-off/reboot\n" "\nSee the %s for details.\n" , program_invocation_short_name , arg_action == ACTION_REBOOT ? " [ARG]" : "", arg_action == ACTION_REBOOT ? "Reboot" : arg_action == ACTION_POWEROFF ? "Power off" : "Halt" , link ); return 0; } static int shutdown_help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("shutdown", "8", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...] [TIME] [WALL...]\n\n" "Shut down the system.\n\n" " --help Show this help\n" " -H --halt Halt the machine\n" " -P --poweroff Power-off the machine\n" " -r --reboot Reboot the machine\n" " -h Equivalent to --poweroff, overridden by --halt\n" " -k Don't halt/power-off/reboot, just send warnings\n" " --no-wall Don't send wall message before halt/power-off/reboot\n" " -c Cancel a pending shutdown\n" "\nSee the %s for details.\n" , program_invocation_short_name , link ); return 0; } static int telinit_help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("telinit", "8", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...] {COMMAND}\n\n" "Send control commands to the init daemon.\n\n" " --help Show this help\n" " --no-wall Don't send wall message before halt/power-off/reboot\n\n" "Commands:\n" " 0 Power-off the machine\n" " 6 Reboot the machine\n" " 2, 3, 4, 5 Start runlevelX.target unit\n" " 1, s, S Enter rescue mode\n" " q, Q Reload init daemon configuration\n" " u, U Reexecute init daemon\n" "\nSee the %s for details.\n" , program_invocation_short_name , link ); return 0; } static int runlevel_help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("runlevel", "8", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...]\n\n" "Prints the previous and current runlevel of the init system.\n\n" " --help Show this help\n" "\nSee the %s for details.\n" , program_invocation_short_name , link ); 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 help_boot_loader_entry(void) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char **l = NULL; sd_bus *bus; char **i; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; r = sd_bus_get_property_strv( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "BootLoaderEntries", &error, &l); if (r < 0) return log_error_errno(r, "Failed to enumerate boot loader entries: %s", bus_error_message(&error, r)); if (strv_isempty(l)) return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "No boot loader entries discovered."); STRV_FOREACH(i, l) puts(*i); return 0; } 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_WAIT, ARG_WHAT, }; 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' }, { "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 }, {} }; 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: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': /* 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 to him, 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); 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_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 '.': /* 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_LOCAL && 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 halt_parse_argv(int argc, char *argv[]) { enum { ARG_HELP = 0x100, ARG_HALT, ARG_REBOOT, ARG_NO_WALL }; static const struct option options[] = { { "help", no_argument, NULL, ARG_HELP }, { "halt", no_argument, NULL, ARG_HALT }, { "poweroff", no_argument, NULL, 'p' }, { "reboot", no_argument, NULL, ARG_REBOOT }, { "force", no_argument, NULL, 'f' }, { "wtmp-only", no_argument, NULL, 'w' }, { "no-wtmp", no_argument, NULL, 'd' }, { "no-sync", no_argument, NULL, 'n' }, { "no-wall", no_argument, NULL, ARG_NO_WALL }, {} }; int c, r, runlevel; assert(argc >= 0); assert(argv); if (utmp_get_runlevel(&runlevel, NULL) >= 0) if (IN_SET(runlevel, '0', '6')) arg_force = 2; while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) switch (c) { case ARG_HELP: return halt_help(); case ARG_HALT: arg_action = ACTION_HALT; break; case 'p': if (arg_action != ACTION_REBOOT) arg_action = ACTION_POWEROFF; break; case ARG_REBOOT: arg_action = ACTION_REBOOT; break; case 'f': arg_force = 2; break; case 'w': arg_dry_run = true; break; case 'd': arg_no_wtmp = true; break; case 'n': arg_no_sync = true; break; case ARG_NO_WALL: arg_no_wall = true; break; case 'i': case 'h': /* Compatibility nops */ break; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (arg_action == ACTION_REBOOT && (argc == optind || argc == optind + 1)) { r = update_reboot_parameter_and_warn(argc == optind + 1 ? argv[optind] : NULL, false); if (r < 0) return r; } else if (optind < argc) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Too many arguments."); return 1; } static int shutdown_parse_argv(int argc, char *argv[]) { enum { ARG_HELP = 0x100, ARG_NO_WALL }; static const struct option options[] = { { "help", no_argument, NULL, ARG_HELP }, { "halt", no_argument, NULL, 'H' }, { "poweroff", no_argument, NULL, 'P' }, { "reboot", no_argument, NULL, 'r' }, { "kexec", no_argument, NULL, 'K' }, /* not documented extension */ { "no-wall", no_argument, NULL, ARG_NO_WALL }, {} }; char **wall = NULL; int c, r; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "HPrhkKat:fFc", options, NULL)) >= 0) switch (c) { case ARG_HELP: return shutdown_help(); case 'H': arg_action = ACTION_HALT; break; case 'P': arg_action = ACTION_POWEROFF; break; case 'r': if (kexec_loaded()) arg_action = ACTION_KEXEC; else arg_action = ACTION_REBOOT; break; case 'K': arg_action = ACTION_KEXEC; break; case 'h': if (arg_action != ACTION_HALT) arg_action = ACTION_POWEROFF; break; case 'k': arg_dry_run = true; break; case ARG_NO_WALL: arg_no_wall = true; break; case 'a': case 't': /* Note that we also ignore any passed argument to -t, not just the -t itself */ case 'f': case 'F': /* Compatibility nops */ break; case 'c': arg_action = ACTION_CANCEL_SHUTDOWN; break; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) { r = parse_shutdown_time_spec(argv[optind], &arg_when); if (r < 0) { log_error("Failed to parse time specification: %s", argv[optind]); return r; } } else arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE; if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN) /* No time argument for shutdown cancel */ wall = argv + optind; else if (argc > optind + 1) /* We skip the time argument */ wall = argv + optind + 1; if (wall) { arg_wall = strv_copy(wall); if (!arg_wall) return log_oom(); } optind = argc; return 1; } static int telinit_parse_argv(int argc, char *argv[]) { enum { ARG_HELP = 0x100, ARG_NO_WALL }; static const struct option options[] = { { "help", no_argument, NULL, ARG_HELP }, { "no-wall", no_argument, NULL, ARG_NO_WALL }, {} }; static const struct { char from; enum action to; } table[] = { { '0', ACTION_POWEROFF }, { '6', ACTION_REBOOT }, { '1', ACTION_RESCUE }, { '2', ACTION_RUNLEVEL2 }, { '3', ACTION_RUNLEVEL3 }, { '4', ACTION_RUNLEVEL4 }, { '5', ACTION_RUNLEVEL5 }, { 's', ACTION_RESCUE }, { 'S', ACTION_RESCUE }, { 'q', ACTION_RELOAD }, { 'Q', ACTION_RELOAD }, { 'u', ACTION_REEXEC }, { 'U', ACTION_REEXEC } }; unsigned i; int c; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) switch (c) { case ARG_HELP: return telinit_help(); case ARG_NO_WALL: arg_no_wall = true; break; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (optind >= argc) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s: required argument missing.", program_invocation_short_name); if (optind + 1 < argc) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Too many arguments."); if (strlen(argv[optind]) != 1) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Expected single character argument."); for (i = 0; i < ELEMENTSOF(table); i++) if (table[i].from == argv[optind][0]) break; if (i >= ELEMENTSOF(table)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown command '%s'.", argv[optind]); arg_action = table[i].to; optind++; return 1; } static int runlevel_parse_argv(int argc, char *argv[]) { enum { ARG_HELP = 0x100, }; static const struct option options[] = { { "help", no_argument, NULL, ARG_HELP }, {} }; int c; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) switch (c) { case ARG_HELP: return runlevel_help(); case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (optind < argc) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Too many arguments."); 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); } #if HAVE_SYSV_COMPAT _pure_ static int action_to_runlevel(void) { static const char table[_ACTION_MAX] = { [ACTION_HALT] = '0', [ACTION_POWEROFF] = '0', [ACTION_REBOOT] = '6', [ACTION_RUNLEVEL2] = '2', [ACTION_RUNLEVEL3] = '3', [ACTION_RUNLEVEL4] = '4', [ACTION_RUNLEVEL5] = '5', [ACTION_RESCUE] = '1' }; assert(arg_action >= 0 && arg_action < _ACTION_MAX); return table[arg_action]; } #endif 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_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 }, { "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, 2, 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 }, {} }; return dispatch_verb(argc, argv, verbs, NULL); } static int reload_with_fallback(void) { /* First, try systemd via D-Bus. */ if (daemon_reload(0, NULL, NULL) >= 0) return 0; /* Nothing else worked, so let's try signals */ assert(IN_SET(arg_action, ACTION_RELOAD, ACTION_REEXEC)); if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) return log_error_errno(errno, "kill() failed: %m"); return 0; } static int start_with_fallback(void) { /* First, try systemd via D-Bus. */ if (start_unit(0, NULL, NULL) == 0) return 0; #if HAVE_SYSV_COMPAT /* Nothing else worked, so let's try /dev/initctl */ if (talk_initctl(action_to_runlevel()) > 0) return 0; #endif return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to talk to init daemon."); } static int halt_now(enum action a) { /* The kernel will automatically flush ATA disks and suchlike on reboot(), but the file systems need to be * synced explicitly in advance. */ if (!arg_no_sync && !arg_dry_run) (void) sync(); /* Make sure C-A-D is handled by the kernel from this point on... */ if (!arg_dry_run) (void) reboot(RB_ENABLE_CAD); switch (a) { case ACTION_HALT: if (!arg_quiet) log_info("Halting."); if (arg_dry_run) return 0; (void) reboot(RB_HALT_SYSTEM); return -errno; case ACTION_POWEROFF: if (!arg_quiet) log_info("Powering off."); if (arg_dry_run) return 0; (void) reboot(RB_POWER_OFF); return -errno; case ACTION_KEXEC: case ACTION_REBOOT: return reboot_with_parameter(REBOOT_FALLBACK | (arg_quiet ? 0 : REBOOT_LOG) | (arg_dry_run ? REBOOT_DRY_RUN : 0)); default: assert_not_reached("Unknown action."); } } static int logind_schedule_shutdown(void) { #if ENABLE_LOGIND _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; char date[FORMAT_TIMESTAMP_MAX]; const char *action; sd_bus *bus; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; switch (arg_action) { case ACTION_HALT: action = "halt"; break; case ACTION_POWEROFF: action = "poweroff"; break; case ACTION_KEXEC: action = "kexec"; break; case ACTION_EXIT: action = "exit"; break; case ACTION_REBOOT: default: action = "reboot"; break; } if (arg_dry_run) action = strjoina("dry-", action); (void) logind_set_wall_message(); r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "ScheduleShutdown", &error, NULL, "st", action, arg_when); if (r < 0) return log_warning_errno(r, "Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: %s", bus_error_message(&error, r)); if (!arg_quiet) log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", format_timestamp(date, sizeof(date), arg_when)); return 0; #else return log_error_errno(SYNTHETIC_ERRNO(ENOSYS), "Cannot schedule shutdown without logind support, proceeding with immediate shutdown."); #endif } static int halt_main(void) { int r; r = logind_check_inhibitors(arg_action); if (r < 0) return r; /* Delayed shutdown requested, and was successful */ if (arg_when > 0 && logind_schedule_shutdown() == 0) return 0; /* no delay, or logind failed or is not at all available */ if (geteuid() != 0) { if (arg_dry_run || arg_force > 0) { (void) must_be_root(); return -EPERM; } /* Try logind if we are a normal user and no special * mode applies. Maybe polkit allows us to shutdown * the machine. */ if (IN_SET(arg_action, ACTION_POWEROFF, ACTION_REBOOT, ACTION_HALT)) { r = logind_reboot(arg_action); if (r >= 0) return r; if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS)) /* requested operation is not * supported on the local system or * already in progress */ return r; /* on all other errors, try low-level operation */ } } /* In order to minimize the difference between operation with and * without logind, we explicitly enable non-blocking mode for this, * as logind's shutdown operations are always non-blocking. */ arg_no_block = true; if (!arg_dry_run && !arg_force) return start_with_fallback(); assert(geteuid() == 0); if (!arg_no_wtmp) { if (sd_booted() > 0) log_debug("Not writing utmp record, assuming that systemd-update-utmp is used."); else { r = utmp_put_shutdown(); if (r < 0) log_warning_errno(r, "Failed to write utmp record: %m"); } } if (arg_dry_run) return 0; r = halt_now(arg_action); return log_error_errno(r, "Failed to reboot: %m"); } static int runlevel_main(void) { int r, runlevel, previous; r = utmp_get_runlevel(&runlevel, &previous); if (r < 0) { puts("unknown"); return r; } printf("%c %c\n", previous <= 0 ? 'N' : previous, runlevel <= 0 ? 'N' : runlevel); return 0; } static int logind_cancel_shutdown(void) { #if ENABLE_LOGIND _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus; int r; r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; (void) logind_set_wall_message(); r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", "CancelScheduledShutdown", &error, NULL, NULL); if (r < 0) return log_warning_errno(r, "Failed to talk to logind, shutdown hasn't been cancelled: %s", bus_error_message(&error, r)); return 0; #else return log_error_errno(SYNTHETIC_ERRNO(ENOSYS), "Not compiled with logind support, cannot cancel scheduled shutdowns."); #endif } static int run(int argc, char *argv[]) { int r; setlocale(LC_ALL, ""); log_parse_environment(); log_open(); /* The journal merging logic potentially needs a lot of fds. */ (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE); sigbus_install(); /* Explicitly not on_tty() to avoid setting cached value. * This becomes relevant for piping output which might be * ellipsized. */ original_stdout_is_tty = isatty(STDOUT_FILENO); 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);