/*** This file is part of systemd. Copyright 2010 Lennart Poettering Copyright 2013 Marc-Antoine Perennou systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . ***/ #include #include #include #include #include #include #include #include #include #include #include #include #include "sd-bus.h" #include "sd-daemon.h" #include "sd-login.h" #include "alloc-util.h" #include "bus-common-errors.h" #include "bus-error.h" #include "bus-message.h" #include "bus-unit-util.h" #include "bus-util.h" #include "cgroup-show.h" #include "cgroup-util.h" #include "copy.h" #include "dropin.h" #include "efivars.h" #include "env-util.h" #include "exit-status.h" #include "fd-util.h" #include "fileio.h" #include "formats-util.h" #include "fs-util.h" #include "glob-util.h" #include "hostname-util.h" #include "initreq.h" #include "install.h" #include "io-util.h" #include "list.h" #include "locale-util.h" #include "log.h" #include "logs-show.h" #include "macro.h" #include "mkdir.h" #include "pager.h" #include "parse-util.h" #include "path-lookup.h" #include "path-util.h" #include "process-util.h" #include "rlimit-util.h" #include "set.h" #include "signal-util.h" #include "socket-util.h" #include "spawn-ask-password-agent.h" #include "spawn-polkit-agent.h" #include "special.h" #include "stat-util.h" #include "strv.h" #include "terminal-util.h" #include "unit-name.h" #include "user-util.h" #include "util.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_no_block = false; static bool arg_no_legend = false; static bool arg_no_pager = false; 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 = false; static bool arg_quiet = false; static bool arg_full = false; static bool arg_recursive = 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_INVALID, ACTION_SYSTEMCTL, ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT, ACTION_KEXEC, ACTION_EXIT, ACTION_SUSPEND, ACTION_HIBERNATE, ACTION_HYBRID_SLEEP, 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 } 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 bool arg_now = false; static int daemon_reload(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 *busses[_BUS_FOCUS_MAX] = {}; 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 (!busses[focus]) { bool user; user = arg_scope != UNIT_FILE_SYSTEM; if (focus == BUS_MANAGER) r = bus_connect_transport_systemd(arg_transport, arg_host, user, &busses[focus]); else r = bus_connect_transport(arg_transport, arg_host, user, &busses[focus]); if (r < 0) return log_error_errno(r, "Failed to connect to bus: %m"); (void) sd_bus_set_allow_interactive_authorization(busses[focus], arg_ask_password); } *ret = busses[focus]; return 0; } static void release_busses(void) { BusFocus w; for (w = 0; w < _BUS_FOCUS_MAX; w++) busses[w] = sd_bus_flush_close_unref(busses[w]); } static void ask_password_agent_open_if_enabled(void) { /* Open the password agent as a child process if necessary */ 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_if_enabled(void) { /* Open the polkit agent as a child process if necessary */ if (!arg_ask_password) return; if (arg_scope != UNIT_FILE_SYSTEM) return; if (arg_transport != BUS_TRANSPORT_LOCAL) return; polkit_agent_open(); } static OutputFlags get_output_flags(void) { return arg_all * OUTPUT_SHOW_ALL | arg_full * OUTPUT_FULL_WIDTH | (!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() > 0) 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 void *a, const void *b) { const UnitInfo *u = a, *v = b; const char *d1, *d2; int r; /* First, order by machine */ if (!u->machine && v->machine) return -1; if (u->machine && !v->machine) return 1; if (u->machine && v->machine) { r = strcasecmp(u->machine, v->machine); if (r != 0) return r; } /* Second, order by unit type */ d1 = strrchr(u->id, '.'); d2 = strrchr(v->id, '.'); if (d1 && d2) { r = strcasecmp(d1, d2); if (r != 0) return r; } /* Third, order by name */ return strcasecmp(u->id, v->id); } 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) { const char *dot; dot = strrchr(u->id, '.'); if (!dot) return false; if (!strv_find(arg_types, dot+1)) 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; const UnitInfo *u; unsigned n_shown = 0; int job_count = 0; max_id_len = strlen("UNIT"); load_len = strlen("LOAD"); active_len = strlen("ACTIVE"); sub_len = strlen("SUB"); job_len = strlen("JOB"); desc_len = 0; 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)); 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", "masked"))) circle_len = 2; } if (!arg_full && original_stdout_is_tty) { unsigned basic_len; id_len = MIN(max_id_len, 25u); basic_len = circle_len + 5 + id_len + 5 + active_len + sub_len; 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; /* split the remaining space between UNIT and DESC, * but do not give UNIT more than it needs. */ if (extra_len > 0) { incr = MIN(extra_len / 2, max_id_len - id_len); id_len += incr; desc_len += extra_len - incr; } } } else id_len = max_id_len; for (u = unit_infos; u < unit_infos + c; u++) { _cleanup_free_ char *e = NULL, *j = NULL; const char *on_loaded = "", *off_loaded = ""; const char *on_active = "", *off_active = ""; const char *on_circle = "", *off_circle = ""; const char *id; bool circle = false; if (!n_shown && !arg_no_legend) { if (circle_len > 0) fputs(" ", stdout); printf("%-*s %-*s %-*s %-*s ", id_len, "UNIT", load_len, "LOAD", active_len, "ACTIVE", sub_len, "SUB"); if (job_count) printf("%-*s ", job_len, "JOB"); if (!arg_full && arg_no_pager) printf("%.*s\n", desc_len, "DESCRIPTION"); else printf("%s\n", "DESCRIPTION"); } n_shown++; if (STR_IN_SET(u->load_state, "error", "not-found", "masked") && !arg_plain) { on_loaded = ansi_highlight_red(); on_circle = ansi_highlight_yellow(); off_loaded = off_circle = ansi_normal(); circle = true; } else if (streq(u->active_state, "failed") && !arg_plain) { on_circle = on_active = ansi_highlight_red(); off_circle = off_active = ansi_normal(); circle = true; } if (u->machine) { j = strjoin(u->machine, ":", u->id, NULL); 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(BLACK_CIRCLE) : " ", off_circle); printf("%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s", 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 : ""); if (desc_len > 0) printf("%.*s\n", desc_len, u->description); else printf("%s\n", u->description); } 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) 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 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); } 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)) { /* 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 = reply; reply = NULL; return c; } static void message_set_freep(Set **set) { sd_bus_message *m; while ((m = set_steal_first(*set))) sd_bus_message_unref(m); set_free(*set); } 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 = machines; machines = NULL; } else *_machines = NULL; *_unit_infos = unit_infos; unit_infos = NULL; *_replies = replies; replies = NULL; return c; } 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; pager_open(arg_no_pager, false); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; r = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines); if (r < 0) return r; qsort_safe(unit_infos, r, sizeof(UnitInfo), 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 o; assert(a); assert(b); if (!a->machine && b->machine) return -1; if (a->machine && !b->machine) return 1; if (a->machine && b->machine) { o = strcasecmp(a->machine, b->machine); if (o != 0) return o; } o = strcmp(a->path, b->path); if (o == 0) o = strcmp(a->type, b->type); return o; } 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, NULL); 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_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; pager_open(arg_no_pager, false); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; n = get_unit_list_recursive(bus, strv_skip(argv, 1), &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 */ } qsort_safe(socket_infos, cs, sizeof(struct socket_info), (__compar_fn_t) 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 elapsation 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 elapsation 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 o; assert(a); assert(b); if (!a->machine && b->machine) return -1; if (a->machine && !b->machine) return 1; if (a->machine && b->machine) { o = strcasecmp(a->machine, b->machine); if (o != 0) return o; } if (a->next_elapse < b->next_elapse) return -1; if (a->next_elapse > b->next_elapse) return 1; 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, NULL); 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 (next->monotonic != USEC_INFINITY && next->monotonic > 0) { usec_t converted; if (next->monotonic > nw->monotonic) converted = nw->realtime + (next->monotonic - nw->monotonic); else converted = nw->realtime - (nw->monotonic - next->monotonic); if (next->realtime != USEC_INFINITY && next->realtime > 0) 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_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; pager_open(arg_no_pager, false); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; n = get_unit_list_recursive(bus, strv_skip(argv, 1), &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 = triggered, }; triggered = NULL; /* avoid cleanup */ } qsort_safe(timer_infos, c, sizeof(struct timer_info), (__compar_fn_t) 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 void *a, const void *b) { const char *d1, *d2; const UnitFileList *u = a, *v = b; d1 = strrchr(u->path, '.'); d2 = strrchr(v->path, '.'); if (d1 && d2) { int r; r = strcasecmp(d1, d2); if (r != 0) return r; } return strcasecmp(basename(u->path), basename(v->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\n", id_cols, "UNIT FILE", state_cols, "STATE"); for (u = units; u < units + c; u++) { _cleanup_free_ char *e = NULL; const char *on, *off; const char *id; if (IN_SET(u->state, UNIT_FILE_MASKED, UNIT_FILE_MASKED_RUNTIME, UNIT_FILE_DISABLED, UNIT_FILE_BAD)) { on = ansi_highlight_red(); off = ansi_normal(); } else if (u->state == UNIT_FILE_ENABLED) { on = ansi_highlight_green(); off = ansi_normal(); } else on = off = ""; id = basename(u->path); e = arg_full ? NULL : ellipsize(id, id_cols, 33); printf("%-*s %s%-*s%s\n", id_cols, e ? e : id, on, state_cols, unit_file_state_to_string(u->state), 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; pager_open(arg_no_pager, 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); } qsort_safe(units, c, sizeof(UnitFileList), 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 int 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) ? TREE_VERTICAL : TREE_SPACE)); } len += 2; if (len > max_len - 3 && !arg_full) { printf("%s...\n",max_len % 2 ? "" : " "); return 0; } printf("%s", special_glyph(last ? TREE_RIGHT : 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) { static const char *dependencies[_DEPENDENCY_MAX] = { [DEPENDENCY_FORWARD] = "Requires\0" "Requisite\0" "Wants\0" "ConsistsOf\0" "BindsTo\0", [DEPENDENCY_REVERSE] = "RequiredBy\0" "RequisiteOf\0" "WantedBy\0" "PartOf\0" "BoundBy\0", [DEPENDENCY_AFTER] = "After\0", [DEPENDENCY_BEFORE] = "Before\0", }; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_strv_free_ char **ret = NULL; _cleanup_free_ char *path = NULL; int r; assert(bus); assert(name); assert(deps); assert_cc(ELEMENTSOF(dependencies) == _DEPENDENCY_MAX); path = unit_dbus_path_from_name(name); if (!path) return log_oom(); r = sd_bus_call_method( bus, "org.freedesktop.systemd1", path, "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "org.freedesktop.systemd1.Unit"); if (r < 0) return log_error_errno(r, "Failed to get properties of %s: %s", name, bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { const char *prop; r = sd_bus_message_read(reply, "s", &prop); if (r < 0) return bus_log_parse_error(r); if (!nulstr_contains(dependencies[arg_dependency], prop)) { r = sd_bus_message_skip(reply, "v"); if (r < 0) return bus_log_parse_error(r); } else { r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as"); if (r < 0) return bus_log_parse_error(r); r = bus_message_read_strv_extend(reply, &ret); 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); } r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(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); *deps = ret; ret = NULL; return 0; } static int list_dependencies_compare(const void *_a, const void *_b) { const char **a = (const char**) _a, **b = (const char**) _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 int 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; qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare); STRV_FOREACH(c, deps) { if (strv_contains(*units, *c)) { if (!arg_plain) { 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(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], UNIT_NAME_NOGLOB, &unit); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); u = unit; } else u = SPECIAL_DEFAULT_TARGET; pager_open(arg_no_pager, false); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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) { if (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 void *a, const void *b) { const struct machine_info *u = a, *v = b; if (u->is_host != v->is_host) return u->is_host > v->is_host ? -1 : 1; return strcasecmp(u->name, v->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, 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 = hn; hn = NULL; 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(); } 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 = sizeof("NAME") - 1, statelen = sizeof("STATE") - 1, failedlen = sizeof("FAILED") - 1, jobslen = sizeof("JOBS") - 1; assert(machine_infos || n == 0); for (m = machine_infos; m < machine_infos + n; m++) { namelen = MAX(namelen, strlen(m->name) + (m->is_host ? sizeof(" (host)") - 1 : 0)); statelen = MAX(statelen, m->state ? strlen(m->state) : 0); failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units)); jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs)); if (!arg_plain && !streq_ptr(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(BLACK_CIRCLE) : " ", off_state); if (m->is_host) printf("%-*s (host) %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n", (int) (namelen - (sizeof(" (host)")-1)), 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%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; if (geteuid() != 0) { log_error("Must be root."); return -EPERM; } pager_open(arg_no_pager, false); 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; qsort_safe(machine_infos, r, sizeof(struct machine_info), 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; unsigned n_changes = 0; int r; assert(argc >= 2); assert(argv); r = unit_name_mangle_with_suffix(argv[1], UNIT_NAME_NOGLOB, ".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, arg_root, unit, true, &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_if_enabled(); 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; } struct job_info { uint32_t id; const char *name, *type, *state; }; static void output_jobs_list(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; } pager_open(arg_no_pager, false); 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_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; const char *name, *type, *state, *job_path, *unit_path; _cleanup_free_ struct job_info *jobs = NULL; size_t size = 0; unsigned c = 0; sd_bus *bus; uint32_t id; int r; bool skipped = false; pager_open(arg_no_pager, false); 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, &job_path, &unit_path)) > 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); output_jobs_list(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 daemon_reload(argc, argv, userdata); polkit_agent_open_if_enabled(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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 %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 **unit_path) { char **p; assert(lp); assert(unit_name); assert(unit_path); STRV_FOREACH(p, lp->search_path) { _cleanup_free_ char *path; path = path_join(arg_root, *p, unit_name); if (!path) return log_oom(); if (access(path, F_OK) == 0) { *unit_path = path; path = NULL; return 1; } } return 0; } static int unit_find_paths( sd_bus *bus, const char *unit_name, LookupPaths *lp, char **fragment_path, char ***dropin_paths) { _cleanup_free_ char *path = NULL; _cleanup_strv_free_ char **dropins = 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 *path, if it exists on disk, * - and a strv of existing drop-ins in *dropins, * if the arg is not NULL and any dropins were found. */ assert(unit_name); assert(fragment_path); assert(lp); if (!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 *unit = NULL; unit = unit_dbus_path_from_name(unit_name); if (!unit) return log_oom(); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", unit, "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 (dropin_paths) { r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", unit, "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 { _cleanup_set_free_ Set *names; names = set_new(NULL); if (!names) return log_oom(); r = set_put(names, unit_name); if (r < 0) return log_error_errno(r, "Failed to add unit name: %m"); r = unit_file_find_path(lp, unit_name, &path); if (r < 0) return r; if (r == 0) { _cleanup_free_ char *template = NULL; r = unit_name_template(unit_name, &template); if (r < 0 && r != -EINVAL) return log_error_errno(r, "Failed to determine template name: %m"); if (r >= 0) { r = unit_file_find_path(lp, template, &path); if (r < 0) return r; } } if (dropin_paths) { r = unit_file_find_dropin_paths(lp->search_path, NULL, names, &dropins); if (r < 0) return r; } } r = 0; if (!isempty(path)) { *fragment_path = path; path = NULL; r = 1; } if (dropin_paths && !strv_isempty(dropins)) { *dropin_paths = dropins; dropins = NULL; r = 1; } if (r == 0) 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_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ char *buf = NULL; UnitActiveState state; const char *path; int r; assert(name); assert(active_state); /* We don't use unit_dbus_path_from_name() directly since we don't want to load the unit unnecessarily, if it * isn't loaded. */ r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "GetUnit", &error, &reply, "s", name); if (r < 0) { if (!sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT)) return log_error_errno(r, "Failed to retrieve unit: %s", bus_error_message(&error, r)); /* The unit is currently not loaded, hence say it's "inactive", since all units that aren't loaded are * considered inactive. */ state = UNIT_INACTIVE; } else { r = sd_bus_message_read(reply, "o", &path); if (r < 0) return bus_log_parse_error(r); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", 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 == _UNIT_ACTIVE_STATE_INVALID) { log_error("Invalid unit state '%s' for: %s", buf, name); return -EINVAL; } } *active_state = state; return 0; } 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 *path = NULL, *n = 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, UNIT_NAME_NOGLOB, &n); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); path = unit_dbus_path_from_name(n); if (!path) return log_oom(); r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", path, "org.freedesktop.systemd1.Unit", "LoadState", &error, &load_state); if (r < 0) return log_error_errno(r, "Failed to get load state of %s: %s", n, bus_error_message(&error, r)); if (streq(load_state, "masked")) return 0; r = sd_bus_get_property_strv( bus, "org.freedesktop.systemd1", 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; const char *method; } unit_actions[] = { { "start", "StartUnit" }, { "stop", "StopUnit" }, { "condstop", "StopUnit" }, { "reload", "ReloadUnit" }, { "restart", "RestartUnit" }, { "try-restart", "TryRestartUnit" }, { "condrestart", "TryRestartUnit" }, { "reload-or-restart", "ReloadOrRestartUnit" }, { "try-reload-or-restart", "ReloadOrTryRestartUnit" }, { "reload-or-try-restart", "ReloadOrTryRestartUnit" }, { "condreload", "ReloadOrTryRestartUnit" }, { "force-reload", "ReloadOrTryRestartUnit" } }; static const char *verb_to_method(const char *verb) { uint 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 *method_to_verb(const char *method) { uint i; for (i = 0; i < ELEMENTSOF(unit_actions); i++) if (streq_ptr(unit_actions[i].method, method)) return unit_actions[i].verb; return "n/a"; } static int start_unit_one( sd_bus *bus, const char *method, const char *name, const char *mode, sd_bus_error *error, BusWaitForJobs *w) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *path; int r; assert(method); assert(name); assert(mode); assert(error); log_debug("Calling manager for %s on %s, %s", method, name, mode); 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) { const char *verb; if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL) /* There's always a fallback possible for * legacy actions. */ return -EADDRNOTAVAIL; verb = method_to_verb(method); log_error("Failed to %s %s: %s", verb, 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)) log_error("See %s logs and 'systemctl%s status %s' for details.", arg_scope == UNIT_FILE_SYSTEM ? "system" : "user", arg_scope == UNIT_FILE_SYSTEM ? "" : " --user", name); return r; } 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_oom(); } return 0; } 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; if (suffix) r = unit_name_mangle_with_suffix(*name, UNIT_NAME_GLOB, suffix, &t); else r = unit_name_mangle(*name, UNIT_NAME_GLOB, &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 = mangled; mangled = NULL; /* do not free */ return 0; } 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" }, }; static enum action verb_to_action(const char *verb) { enum action i; for (i = _ACTION_INVALID; i < _ACTION_MAX; i++) if (streq_ptr(action_table[i].verb, verb)) return i; return _ACTION_INVALID; } static int start_unit(int argc, char *argv[], void *userdata) { _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; const char *method, *mode, *one_name, *suffix = NULL; _cleanup_strv_free_ char **names = NULL; sd_bus *bus; char **name; int r = 0; ask_password_agent_open_if_enabled(); polkit_agent_open_if_enabled(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; if (arg_action == ACTION_SYSTEMCTL) { enum action action; method = verb_to_method(argv[0]); action = verb_to_action(argv[0]); if (streq(argv[0], "isolate")) { mode = "isolate"; suffix = ".target"; } else mode = action_table[action].mode ?: arg_job_mode; one_name = action_table[action].target; } else { assert(arg_action < ELEMENTSOF(action_table)); assert(action_table[arg_action].target); method = "StartUnit"; mode = action_table[arg_action].mode; one_name = action_table[arg_action].target; } if (one_name) names = strv_new(one_name, NULL); 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"); } STRV_FOREACH(name, names) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int q; q = start_unit_one(bus, method, *name, mode, &error, w); if (r >= 0 && q < 0) r = translate_bus_error_to_exit_status(q, &error); } if (!arg_no_block) { int q, arg_count = 0; const char* extra_args[4] = {}; if (arg_scope != UNIT_FILE_SYSTEM) extra_args[arg_count++] = "--user"; assert(IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_MACHINE)); if (arg_transport == BUS_TRANSPORT_REMOTE) { extra_args[arg_count++] = "-H"; extra_args[arg_count++] = arg_host; } else if (arg_transport == BUS_TRANSPORT_MACHINE) { extra_args[arg_count++] = "-M"; extra_args[arg_count++] = arg_host; } q = bus_wait_for_jobs(w, arg_quiet, extra_args); if (q < 0) return q; /* When stopping units, warn if they can still be triggered by * another active unit (socket, path, timer) */ if (!arg_quiet && streq(method, "StopUnit")) STRV_FOREACH(name, names) check_triggering_units(bus, *name); } return r; } static int logind_set_wall_message(void) { #ifdef HAVE_LOGIND _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(); 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)); #endif return 0; } /* Ask systemd-logind, which might grant access to unprivileged users * through PolicyKit */ static int logind_reboot(enum action a) { #ifdef HAVE_LOGIND _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; const char *method, *description; sd_bus *bus; int r; polkit_agent_open_if_enabled(); (void) logind_set_wall_message(); r = acquire_bus(BUS_FULL, &bus); if (r < 0) return r; switch (a) { case ACTION_REBOOT: method = "Reboot"; description = "reboot system"; break; case ACTION_POWEROFF: method = "PowerOff"; description = "power off system"; break; case ACTION_SUSPEND: method = "Suspend"; description = "suspend system"; break; case ACTION_HIBERNATE: method = "Hibernate"; description = "hibernate system"; break; case ACTION_HYBRID_SLEEP: method = "HybridSleep"; description = "put system into hybrid sleep"; break; default: return -EINVAL; } r = sd_bus_call_method( bus, "org.freedesktop.login1", "/org/freedesktop/login1", "org.freedesktop.login1.Manager", method, &error, NULL, "b", arg_ask_password); if (r < 0) return log_error_errno(r, "Failed to %s via logind: %s", description, bus_error_message(&error, r)); return 0; #else return -ENOSYS; #endif } static int logind_check_inhibitors(enum action a) { #ifdef HAVE_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; 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_t) pid < 0) return log_error_errno(ERANGE, "Bad PID %"PRIu32": %m", 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 || (!streq(type, "x11") && !streq(type, "tty"))) 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 logind_prepare_firmware_setup(void) { #ifdef HAVE_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 log_error("Cannot remotely indicate to EFI to boot into setup mode."); return -ENOSYS; #endif } static int prepare_firmware_setup(void) { int r; if (!arg_firmware_setup) return 0; if (arg_transport == BUS_TRANSPORT_LOCAL) { r = efi_set_reboot_to_firmware(true); if (r < 0) log_debug_errno(r, "Cannot indicate to EFI to boot into setup mode, will retry via logind: %m"); else return r; } return logind_prepare_firmware_setup(); } 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; assert(argv); a = verb_to_action(argv[0]); r = logind_check_inhibitors(a); if (r < 0) return r; if (arg_force >= 2 && geteuid() != 0) { log_error("Must be root."); return -EPERM; } r = prepare_firmware_setup(); if (r < 0) return r; if (a == ACTION_REBOOT && argc > 1) { r = update_reboot_parameter_and_warn(argv[1]); 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; } if (arg_force >= 2 && IN_SET(a, ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT)) return halt_now(a); if (arg_force >= 1 && IN_SET(a, ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT, ACTION_KEXEC, ACTION_EXIT)) return daemon_reload(argc, argv, userdata); /* First try logind, to allow authentication with polkit */ if (IN_SET(a, ACTION_POWEROFF, ACTION_REBOOT, ACTION_SUSPEND, ACTION_HIBERNATE, ACTION_HYBRID_SLEEP)) { 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 */ } return start_unit(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) { const UnitActiveState states[] = { UNIT_ACTIVE, UNIT_RELOADING }; /* According to LSB: 3, "program is not running" */ return check_unit_generic(3, states, ELEMENTSOF(states), strv_skip(argv, 1)); } static int check_unit_failed(int argc, char *argv[], void *userdata) { const UnitActiveState states[] = { UNIT_FAILED }; return check_unit_generic(1, 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; polkit_agent_open_if_enabled(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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", *names, kill_who ? kill_who : arg_kill_who, arg_signal); if (q < 0) { log_error_errno(q, "Failed to kill unit %s: %s", *names, bus_error_message(&error, q)); if (r == 0) r = q; } } return r; } 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; 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) { 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, "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 = sd_bus_message_read(m, "bttttuii", &ignore, &start_timestamp, &start_timestamp_monotonic, &exit_timestamp, &exit_timestamp_monotonic, &pid, &code, &status); if (r < 0) return bus_log_parse_error(r); 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 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; bool failed_condition_trigger; bool failed_condition_negate; const char *failed_condition; const char *failed_condition_parameter; usec_t assert_timestamp; bool assert_result; bool failed_assert_trigger; bool failed_assert_negate; const char *failed_assert; const char *failed_assert_parameter; /* Socket */ unsigned n_accepted; unsigned n_connections; 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_low; uint64_t memory_high; uint64_t memory_max; uint64_t memory_limit; uint64_t cpu_usage_nsec; uint64_t tasks_current; uint64_t tasks_max; LIST_HEAD(ExecStatusInfo, exec); } UnitStatusInfo; static void print_status_info( sd_bus *bus, UnitStatusInfo *i, bool *ellipsized) { ExecStatusInfo *p; const char *active_on, *active_off, *on, *off, *ss; usec_t timestamp; char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1; char since2[FORMAT_TIMESTAMP_MAX], *s2; 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 (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) { active_on = ansi_highlight_green(); active_off = ansi_normal(); } else active_on = active_off = ""; printf("%s%s%s %s", active_on, 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 (streq_ptr(i->load_state, "error")) { on = ansi_highlight_red(); off = ansi_normal(); } else on = off = ""; path = i->source_path ? i->source_path : i->fragment_path; if (i->load_error != 0) 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)) 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) { 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(TREE_RIGHT)); } last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir)); printf("%s%s", basename(*dropin), 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 = (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp : (streq_ptr(i->active_state, "inactive") || streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp : streq_ptr(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 (!i->condition_result && i->condition_timestamp > 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)); if (i->failed_condition_trigger) printf(" none of the trigger conditions were met\n"); else if (i->failed_condition) printf(" %s=%s%s was not met\n", i->failed_condition, i->failed_condition_negate ? "!" : "", i->failed_condition_parameter); } 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) printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t); 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\n", i->n_accepted, i->n_connections); LIST_FOREACH(exec, p, i->exec) { _cleanup_free_ char *argv = NULL; bool good; /* Only show exited processes here */ if (p->code == 0) continue; argv = strv_join(p->argv, " "); printf(" Process: "PID_FMT" %s=%s ", p->pid, p->name, strna(argv)); good = is_clean_exit_lsb(p->code, p->status, 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_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) { _cleanup_free_ char *comm = NULL; 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_SYSTEMD); if (c) printf("/%s", c); } else printf("signal=%s", signal_to_string(i->exit_status)); printf(")"); } if (i->control_pid > 0) printf(";"); } if (i->control_pid > 0) { _cleanup_free_ char *c = NULL; printf(" %8s: "PID_FMT, i->main_pid ? "" : " Control", i->control_pid); 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(i->status_errno)); if (i->tasks_current != (uint64_t) -1) { printf(" Tasks: %" PRIu64, i->tasks_current); if (i->tasks_max != (uint64_t) -1) printf(" (limit: %" PRIi64 ")\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_low > 0 || i->memory_high != CGROUP_LIMIT_MAX || i->memory_max != CGROUP_LIMIT_MAX || i->memory_limit != CGROUP_LIMIT_MAX) { const char *prefix = ""; printf(" ("); 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_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) printf(" CGroup: %s\n", i->control_group); { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; static const char prefix[] = " "; unsigned c; 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, ignoring: %s", 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 status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) { int r; assert(name); assert(m); assert(i); switch (contents[0]) { case SD_BUS_TYPE_STRING: { const char *s; r = sd_bus_message_read(m, "s", &s); if (r < 0) return bus_log_parse_error(r); if (!isempty(s)) { if (streq(name, "Id")) i->id = s; else if (streq(name, "LoadState")) i->load_state = s; else if (streq(name, "ActiveState")) i->active_state = s; else if (streq(name, "SubState")) i->sub_state = s; else if (streq(name, "Description")) i->description = s; else if (streq(name, "FragmentPath")) i->fragment_path = s; else if (streq(name, "SourcePath")) i->source_path = s; #ifndef NOLEGACY else if (streq(name, "DefaultControlGroup")) { const char *e; e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":"); if (e) i->control_group = e; } #endif else if (streq(name, "ControlGroup")) i->control_group = s; else if (streq(name, "StatusText")) i->status_text = s; else if (streq(name, "PIDFile")) i->pid_file = s; else if (streq(name, "SysFSPath")) i->sysfs_path = s; else if (streq(name, "Where")) i->where = s; else if (streq(name, "What")) i->what = s; else if (streq(name, "Following")) i->following = s; else if (streq(name, "UnitFileState")) i->unit_file_state = s; else if (streq(name, "UnitFilePreset")) i->unit_file_preset = s; else if (streq(name, "Result")) i->result = s; } break; } case SD_BUS_TYPE_BOOLEAN: { int b; r = sd_bus_message_read(m, "b", &b); if (r < 0) return bus_log_parse_error(r); if (streq(name, "Accept")) i->accept = b; else if (streq(name, "NeedDaemonReload")) i->need_daemon_reload = b; else if (streq(name, "ConditionResult")) i->condition_result = b; else if (streq(name, "AssertResult")) i->assert_result = b; else if (streq(name, "Transient")) i->transient = b; break; } case SD_BUS_TYPE_UINT32: { uint32_t u; r = sd_bus_message_read(m, "u", &u); if (r < 0) return bus_log_parse_error(r); if (streq(name, "MainPID")) { if (u > 0) { i->main_pid = (pid_t) u; i->running = true; } } else if (streq(name, "ControlPID")) i->control_pid = (pid_t) u; else if (streq(name, "ExecMainPID")) { if (u > 0) i->main_pid = (pid_t) u; } else if (streq(name, "NAccepted")) i->n_accepted = u; else if (streq(name, "NConnections")) i->n_connections = u; break; } case SD_BUS_TYPE_INT32: { int32_t j; r = sd_bus_message_read(m, "i", &j); if (r < 0) return bus_log_parse_error(r); if (streq(name, "ExecMainCode")) i->exit_code = (int) j; else if (streq(name, "ExecMainStatus")) i->exit_status = (int) j; else if (streq(name, "StatusErrno")) i->status_errno = (int) j; break; } case SD_BUS_TYPE_UINT64: { uint64_t u; r = sd_bus_message_read(m, "t", &u); if (r < 0) return bus_log_parse_error(r); if (streq(name, "ExecMainStartTimestamp")) i->start_timestamp = (usec_t) u; else if (streq(name, "ExecMainExitTimestamp")) i->exit_timestamp = (usec_t) u; else if (streq(name, "ActiveEnterTimestamp")) i->active_enter_timestamp = (usec_t) u; else if (streq(name, "InactiveEnterTimestamp")) i->inactive_enter_timestamp = (usec_t) u; else if (streq(name, "InactiveExitTimestamp")) i->inactive_exit_timestamp = (usec_t) u; else if (streq(name, "InactiveExitTimestampMonotonic")) i->inactive_exit_timestamp_monotonic = (usec_t) u; else if (streq(name, "ActiveExitTimestamp")) i->active_exit_timestamp = (usec_t) u; else if (streq(name, "ConditionTimestamp")) i->condition_timestamp = (usec_t) u; else if (streq(name, "AssertTimestamp")) i->assert_timestamp = (usec_t) u; else if (streq(name, "MemoryCurrent")) i->memory_current = u; else if (streq(name, "MemoryLow")) i->memory_low = u; else if (streq(name, "MemoryHigh")) i->memory_high = u; else if (streq(name, "MemoryMax")) i->memory_max = u; else if (streq(name, "MemoryLimit")) i->memory_limit = u; else if (streq(name, "TasksCurrent")) i->tasks_current = u; else if (streq(name, "TasksMax")) i->tasks_max = u; else if (streq(name, "CPUUsageNSec")) i->cpu_usage_nsec = u; break; } case SD_BUS_TYPE_ARRAY: if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) { _cleanup_free_ ExecStatusInfo *info = NULL; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)"); if (r < 0) return bus_log_parse_error(r); info = new0(ExecStatusInfo, 1); if (!info) return log_oom(); while ((r = exec_status_info_deserialize(m, info)) > 0) { info->name = strdup(name); if (!info->name) return log_oom(); LIST_PREPEND(exec, i->exec, info); info = new0(ExecStatusInfo, 1); if (!info) 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); return 0; } else if (contents[1] == 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) { r = strv_extend(&i->listen, type); if (r < 0) return r; r = strv_extend(&i->listen, path); if (r < 0) return r; } 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 0; } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) { r = sd_bus_message_read_strv(m, &i->dropin_paths); if (r < 0) return bus_log_parse_error(r); } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) { r = sd_bus_message_read_strv(m, &i->documentation); if (r < 0) return bus_log_parse_error(r); } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) { const char *cond, *param; int trigger, negate; int32_t state; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, ¶m, &state)) > 0) { log_debug("%s %d %d %s %d", cond, trigger, negate, param, state); if (state < 0 && (!trigger || !i->failed_condition)) { i->failed_condition = cond; i->failed_condition_trigger = trigger; i->failed_condition_negate = negate; i->failed_condition_parameter = param; } } 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); } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Asserts")) { const char *cond, *param; int trigger, negate; int32_t state; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, ¶m, &state)) > 0) { log_debug("%s %d %d %s %d", cond, trigger, negate, param, state); 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 bus_log_parse_error(r); r = sd_bus_message_exit_container(m); if (r < 0) return bus_log_parse_error(r); } else goto skip; break; case SD_BUS_TYPE_STRUCT_BEGIN: if (streq(name, "LoadError")) { const char *n, *message; r = sd_bus_message_read(m, "(ss)", &n, &message); if (r < 0) return bus_log_parse_error(r); if (!isempty(message)) i->load_error = message; } else goto skip; break; default: goto skip; } return 0; skip: r = sd_bus_message_skip(m, contents); if (r < 0) return bus_log_parse_error(r); return 0; } #define print_prop(name, fmt, ...) \ do { \ if (arg_value) \ printf(fmt "\n", __VA_ARGS__); \ else \ printf("%s=" fmt "\n", name, __VA_ARGS__); \ } while(0) static int print_property(const char *name, sd_bus_message *m, const char *contents) { int r; assert(name); assert(m); /* This is a low-level property printer, see * print_status_info() for the nicer output */ if (arg_properties && !strv_find(arg_properties, name)) { /* skip what we didn't read */ r = sd_bus_message_skip(m, contents); return r; } switch (contents[0]) { case SD_BUS_TYPE_STRUCT_BEGIN: if (contents[1] == 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) print_prop(name, "%"PRIu32, u); else if (arg_all) print_prop(name, "%s", ""); return 0; } else if (contents[1] == 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 (arg_all || !isempty(s)) print_prop(name, "%s", s); return 0; } else if (contents[1] == 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 (arg_all || !isempty(a) || !isempty(b)) print_prop(name, "%s \"%s\"", strempty(a), strempty(b)); return 0; } else if (streq_ptr(name, "SystemCallFilter")) { _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 (arg_all || whitelist || !strv_isempty(l)) { bool first = true; char **i; if (!arg_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 0; } break; case SD_BUS_TYPE_ARRAY: if (contents[1] == 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) print_prop("EnvironmentFile", "%s (ignore_errors=%s)\n", 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 0; } else if (contents[1] == 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) print_prop(type, "%s", path); 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 0; } else if (contents[1] == 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) if (arg_value) puts(path); else printf("Listen%s=%s\n", type, path); 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 0; } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) { const char *base; uint64_t value, 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, &value, &next_elapse)) > 0) { char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX]; print_prop(base, "{ value=%s ; next_elapse=%s }", format_timespan(timespan1, sizeof(timespan1), value, 0), format_timespan(timespan2, sizeof(timespan2), next_elapse, 0)); } 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 0; } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) { ExecStatusInfo info = {}; r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)"); if (r < 0) return bus_log_parse_error(r); while ((r = exec_status_info_deserialize(m, &info)) > 0) { char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; _cleanup_free_ char *tt; tt = strv_join(info.argv, " "); print_prop(name, "{ 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 0; } else if (contents[1] == 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) print_prop(name, "%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 0; } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && (streq(name, "IODeviceWeight") || streq(name, "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) print_prop(name, "%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 0; } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && (cgroup_io_limit_type_from_string(name) >= 0 || streq(name, "BlockIOReadBandwidth") || streq(name, "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) print_prop(name, "%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 0; } break; } r = bus_print_property(name, m, arg_value, arg_all); if (r < 0) return bus_log_parse_error(r); if (r == 0) { r = sd_bus_message_skip(m, contents); if (r < 0) return bus_log_parse_error(r); if (arg_all) printf("%s=[unprintable]\n", name); } return 0; } static int show_one( const char *verb, sd_bus *bus, const char *path, bool show_properties, bool *new_line, bool *ellipsized) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; UnitStatusInfo info = { .memory_current = (uint64_t) -1, .memory_high = CGROUP_LIMIT_MAX, .memory_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, }; ExecStatusInfo *p; int r; assert(path); assert(new_line); log_debug("Showing one %s", path); r = sd_bus_call_method( bus, "org.freedesktop.systemd1", path, "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", ""); if (r < 0) return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r)); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}"); if (r < 0) return bus_log_parse_error(r); if (*new_line) printf("\n"); *new_line = true; while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { const char *name, *contents; r = sd_bus_message_read(reply, "s", &name); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_peek_type(reply, NULL, &contents); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents); if (r < 0) return bus_log_parse_error(r); if (show_properties) r = print_property(name, reply, contents); else r = status_property(name, reply, &info, contents); if (r < 0) return r; r = sd_bus_message_exit_container(reply); 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); } 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); r = 0; if (!show_properties) { if (streq(verb, "help")) show_unit_help(&info); else print_status_info(bus, &info, ellipsized); } strv_free(info.documentation); strv_free(info.dropin_paths); strv_free(info.listen); if (!streq_ptr(info.active_state, "active") && !streq_ptr(info.active_state, "reloading") && streq(verb, "status")) { /* According to LSB: "program not running" */ /* 0: program is running or service is OK * 1: program is dead and /run PID file exists * 2: program is dead and /run/lock lock file exists * 3: program is not running * 4: program or service status is unknown */ if (info.pid_file && access(info.pid_file, F_OK) == 0) r = 1; else if (streq_ptr(info.load_state, "not-found") && streq_ptr(info.active_state, "inactive")) r = 4; else r = 3; } while ((p = info.exec)) { LIST_REMOVE(exec, info.exec, p); exec_status_info_free(p); } return r; } 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( const char* verb, sd_bus *bus, bool show_properties, 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; pager_open(arg_no_pager, false); c = (unsigned) r; qsort_safe(unit_infos, c, sizeof(UnitInfo), 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(verb, bus, p, show_properties, 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_free_ char *hn = NULL; _cleanup_(machine_info_clear) struct machine_info mi = {}; 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, &mi); if (r < 0) return log_error_errno(r, "Failed to read server status: %m"); if (streq_ptr(mi.state, "degraded")) { on = ansi_highlight_red(); off = ansi_normal(); } else if (!streq_ptr(mi.state, "running")) { on = ansi_highlight_yellow(); off = ansi_normal(); } else on = off = ""; printf("%s%s%s %s\n", on, 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 show_properties, show_status, show_help, new_line = false; bool ellipsized = false; int r, ret = 0; sd_bus *bus; assert(argv); show_properties = streq(argv[0], "show"); show_status = streq(argv[0], "status"); show_help = streq(argv[0], "help"); if (show_help && argc <= 1) { log_error("This command expects one or more unit names. Did you mean --help?"); return -EINVAL; } pager_open(arg_no_pager, false); if (show_status) /* Increase max number of open files to 16K if we can, we * might needs this when browsing journal files, which might * be split up into many files. */ setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384)); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; /* If no argument is specified inspect the manager itself */ if (show_properties && argc <= 1) return show_one(argv[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized); if (show_status && argc <= 1) { pager_open(arg_no_pager, false); show_system_status(bus); new_line = true; if (arg_all) ret = show_all(argv[0], bus, false, &new_line, &ellipsized); } else { _cleanup_free_ char **patterns = NULL; char **name; STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_free_ char *unit = NULL; uint32_t id; if (safe_atou32(*name, &id) < 0) { if (strv_push(&patterns, *name) < 0) return log_oom(); continue; } else if (show_properties) { /* Interpret as job id */ if (asprintf(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0) return log_oom(); } else { /* Interpret as PID */ r = get_unit_dbus_path_by_pid(bus, id, &unit); if (r < 0) { ret = r; continue; } } r = show_one(argv[0], bus, unit, show_properties, &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 *unit; unit = unit_dbus_path_from_name(*name); if (!unit) return log_oom(); r = show_one(argv[0], bus, unit, show_properties, &new_line, &ellipsized); if (r < 0) return r; else 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_file(const char *filename, bool newline) { _cleanup_close_ int fd; fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOCTTY); if (fd < 0) return -errno; printf("%s%s# %s%s\n", newline ? "\n" : "", ansi_highlight_blue(), filename, ansi_normal()); fflush(stdout); return copy_bytes(fd, STDOUT_FILENO, (uint64_t) -1, false); } 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; if (arg_transport != BUS_TRANSPORT_LOCAL) { log_error("Cannot remotely cat units."); return -EINVAL; } 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"); pager_open(arg_no_pager, false); STRV_FOREACH(name, names) { _cleanup_free_ char *fragment_path = NULL; _cleanup_strv_free_ char **dropin_paths = NULL; char **path; r = unit_find_paths(bus, *name, &lp, &fragment_path, &dropin_paths); if (r < 0) return r; else if (r == 0) return -ENOENT; if (first) first = false; else puts(""); if (fragment_path) { r = cat_file(fragment_path, false); if (r < 0) return log_warning_errno(r, "Failed to cat %s: %m", fragment_path); } STRV_FOREACH(path, dropin_paths) { r = cat_file(*path, path == dropin_paths); if (r < 0) return log_warning_errno(r, "Failed to cat %s: %m", *path); } } 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; sd_bus *bus; char **i; int r; polkit_agent_open_if_enabled(); 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", "SetUnitProperties"); if (r < 0) return bus_log_create_error(r); r = unit_name_mangle(argv[1], UNIT_NAME_NOGLOB, &n); if (r < 0) return log_error_errno(r, "Failed to mangle unit name: %m"); 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); STRV_FOREACH(i, strv_skip(argv, 2)) { r = bus_append_unit_property_assignment(m, *i); 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; const char *method; sd_bus *bus; int r; polkit_agent_open_if_enabled(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; if (arg_action == ACTION_RELOAD) method = "Reload"; else if (arg_action == ACTION_REEXEC) method = "Reexecute"; else { assert(arg_action == ACTION_SYSTEMCTL); method = streq(argv[0], "clear-jobs") || streq(argv[0], "cancel") ? "ClearJobs" : streq(argv[0], "daemon-reexec") ? "Reexecute" : streq(argv[0], "reset-failed") ? "ResetFailed" : streq(argv[0], "halt") ? "Halt" : streq(argv[0], "poweroff") ? "PowerOff" : streq(argv[0], "reboot") ? "Reboot" : streq(argv[0], "kexec") ? "KExec" : streq(argv[0], "exit") ? "Exit" : /* "daemon-reload" */ "Reload"; } r = sd_bus_call_method( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", method, &error, NULL, NULL); if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL) /* There's always a fallback possible for * legacy actions. */ r = -EADDRNOTAVAIL; else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute")) /* On reexecution, we expect a disconnect, not a * reply */ r = 0; else if (r < 0) return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r)); 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 daemon_reload(argc, argv, userdata); polkit_agent_open_if_enabled(); 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(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 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; pager_open(arg_no_pager, false); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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) puts(text); 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) { log_error("Cannot switch root remotely."); return -EINVAL; } if (argc < 2 || argc > 3) { log_error("Wrong number of arguments."); return -EINVAL; } root = argv[1]; if (argc >= 3) init = argv[2]; else { r = parse_env_file("/proc/cmdline", WHITESPACE, "init", &cmdline_init, NULL); 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 = strjoina(root, "/" SYSTEMD_BINARY_PATH); root_init_path = strjoina(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) init = NULL; } r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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) 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); polkit_agent_open_if_enabled(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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; polkit_agent_open_if_enabled(); 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", "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)) { log_error("Not a valid environment variable name: %s", *a); return -EINVAL; } 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 defined(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, NULL, NULL, NULL, }; _cleanup_free_ char *p = NULL, *q = NULL, *l = NULL; bool found_native = false, found_sysv; siginfo_t status; 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 (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)) argv[c++] = q = strappend("--root=", arg_root); argv[c++] = verb; argv[c++] = basename(p); argv[c] = NULL; l = strv_join((char**)argv, " "); if (!l) return log_oom(); log_info("Executing: %s", l); pid = fork(); if (pid < 0) return log_error_errno(errno, "Failed to fork: %m"); else if (pid == 0) { /* Child */ (void) reset_all_signal_handlers(); (void) reset_signal_mask(); execv(argv[0], (char**) argv); log_error_errno(errno, "Failed to execute %s: %m", argv[0]); _exit(EXIT_FAILURE); } j = wait_for_terminate(pid, &status); if (j < 0) { log_error_errno(j, "Failed to wait for child: %m"); return j; } if (status.si_code == CLD_EXITED) { if (streq(verb, "is-enabled")) { if (status.si_status == 0) { if (!arg_quiet) puts("enabled"); r = 1; } else { if (!arg_quiet) puts("disabled"); } } else if (status.si_status != 0) return -EBADE; /* We don't warn here, under the assumption the script already showed an explanation */ } else { log_error("Unexpected waitid() result."); return -EPROTO; } 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, 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, UNIT_NAME_NOGLOB, i); if (r < 0) { strv_free(l); return log_error_errno(r, "Failed to mangle unit name: %m"); } } i++; } *i = NULL; *mangled_names = l; return 0; } static int enable_unit(int argc, char *argv[], void *userdata) { _cleanup_strv_free_ char **names = NULL; const char *verb = argv[0]; UnitFileChange *changes = NULL; unsigned 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 (install_client_side()) { if (streq(verb, "enable")) { r = unit_file_enable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes); carries_install_info = r; } else if (streq(verb, "disable")) r = unit_file_disable(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes); else if (streq(verb, "reenable")) { r = unit_file_reenable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes); carries_install_info = r; } else if (streq(verb, "link")) r = unit_file_link(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes); else if (streq(verb, "preset")) { r = unit_file_preset(arg_scope, arg_runtime, arg_root, names, arg_preset_mode, arg_force, &changes, &n_changes); } else if (streq(verb, "mask")) r = unit_file_mask(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes); else if (streq(verb, "unmask")) r = unit_file_unmask(arg_scope, arg_runtime, 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; polkit_agent_open_if_enabled(); r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) return r; 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_warning("The unit files have no installation config (WantedBy, RequiredBy, Also, Alias\n" "settings in the [Install] section, and DefaultInstance for template units).\n" "This means they are not meant to be enabled using systemctl.\n" "Possible reasons for having this kind of units are:\n" "1) A unit may be statically enabled by being symlinked from another unit's\n" " .wants/ or .requires/ directory.\n" "2) A unit's purpose may be to act as a helper for some other unit which has\n" " a requirement dependency on it.\n" "3) A unit may be started when needed via activation (socket, path, timer,\n" " D-Bus, udev, scripted systemctl call, ...).\n" "4) In case of template units, the unit is meant to be enabled with some\n" " instance name specified."); if (arg_now && n_changes > 0 && STR_IN_SET(argv[0], "enable", "disable", "mask")) { char *new_args[n_changes + 2]; sd_bus *bus; unsigned i; r = acquire_bus(BUS_MANAGER, &bus); if (r < 0) goto finish; new_args[0] = (char*) (streq(argv[0], "enable") ? "start" : "stop"); for (i = 0; i < n_changes; i++) new_args[i + 1] = basename(changes[i].path); new_args[i + 1] = NULL; r = start_unit(strv_length(new_args), 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; unsigned n_changes = 0; UnitDependency dep; int r = 0; if (!argv[1]) return 0; r = unit_name_mangle_with_suffix(argv[1], UNIT_NAME_NOGLOB, ".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, arg_runtime, arg_root, names, target, dep, arg_force, &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; polkit_agent_open_if_enabled(); 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", "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; unsigned n_changes = 0; int r; if (install_client_side()) { r = unit_file_preset_all(arg_scope, arg_runtime, arg_root, arg_preset_mode, arg_force, &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; polkit_agent_open_if_enabled(); 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", "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 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(state, "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)); } 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); } } return enabled ? EXIT_SUCCESS : EXIT_FAILURE; } static int is_system_running(int argc, char *argv[], void *userdata) { _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; r = sd_bus_get_property_string( bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "SystemState", NULL, &state); if (r < 0) { if (!arg_quiet) puts("unknown"); return 0; } 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); 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 copy \"%s\" to \"%s\": %m", original_path, t); *ret_tmp_fn = t; t = NULL; 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 = strjoin(paths->persistent_config, "/", name, NULL); if (!path) return log_oom(); if (arg_runtime) { run = strjoin(paths->runtime_config, name, NULL); if (!run) return log_oom(); } if (arg_runtime) { if (access(path, F_OK) >= 0) { log_error("Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.", run, path); return -EEXIST; } *ret_path = run; run = NULL; } else { *ret_path = path; path = NULL; } return 0; } static int unit_file_create_dropin( const LookupPaths *paths, const char *unit_name, char **ret_new_path, char **ret_tmp_path) { char *tmp_new_path, *tmp_tmp_path, *ending; int r; assert(unit_name); assert(ret_new_path); assert(ret_tmp_path); ending = strjoina(unit_name, ".d/override.conf"); r = get_file_to_edit(paths, ending, &tmp_new_path); if (r < 0) return r; r = create_edit_temp_file(tmp_new_path, tmp_new_path, &tmp_tmp_path); if (r < 0) { free(tmp_new_path); return r; } *ret_new_path = tmp_new_path; *ret_tmp_path = tmp_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) { char *tmp_new_path, *tmp_tmp_path; int r; assert(fragment_path); assert(unit_name); assert(ret_new_path); assert(ret_tmp_path); r = get_file_to_edit(paths, unit_name, &tmp_new_path); if (r < 0) return r; if (!path_equal(fragment_path, tmp_new_path) && access(tmp_new_path, F_OK) == 0) { char response; r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", tmp_new_path, fragment_path); if (r < 0) { free(tmp_new_path); return r; } if (response != 'y') { log_warning("%s ignored", unit_name); free(tmp_new_path); return -1; } } r = create_edit_temp_file(tmp_new_path, fragment_path, &tmp_tmp_path); if (r < 0) { log_error_errno(r, "Failed to create temporary file for \"%s\": %m", tmp_new_path); free(tmp_new_path); return r; } *ret_new_path = tmp_new_path; *ret_tmp_path = tmp_tmp_path; return 0; } static int run_editor(char **paths) { pid_t pid; int r; assert(paths); pid = fork(); if (pid < 0) return log_error_errno(errno, "Failed to fork: %m"); if (pid == 0) { const char **args; char *editor, **editor_args = NULL; char **tmp_path, **original_path, *p; unsigned n_editor_args = 0, i = 1; size_t argc; (void) reset_all_signal_handlers(); (void) reset_signal_mask(); 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; i++; } 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); } r = wait_for_terminate_and_warn("editor", pid, true); if (r < 0) return log_error_errno(r, "Failed to wait for child: %m"); 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; r = unit_find_paths(bus, *name, &lp, &path, NULL); if (r < 0) return r; else if (r == 0) return -ENOENT; else if (!path) { // FIXME: support units with path==NULL (no FragmentPath) log_error("No fragment exists for %s.", *name); return -ENOENT; } if (arg_full) r = unit_file_create_copy(&lp, *name, path, &new_path, &tmp_path); else r = unit_file_create_dropin(&lp, *name, &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_strv_free_ char **names = NULL; _cleanup_strv_free_ char **paths = NULL; char **original, **tmp; sd_bus *bus; int r; if (!on_tty()) { log_error("Cannot edit units if not on a tty."); return -EINVAL; } if (arg_transport != BUS_TRANSPORT_LOCAL) { log_error("Cannot edit units remotely."); return -EINVAL; } 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"); 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. It's * useful if the user wants to cancel its 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 void systemctl_help(void) { pager_open(arg_no_pager, false); printf("%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" " -p --property=NAME Show only properties by this name\n" " -a --all Show all loaded units/properties, including dead/empty\n" " ones. To list all units installed on the system, use\n" " 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" " --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" " --now Start or stop unit in addition to enabling or disabling it\n" " -q --quiet Suppress output\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 unit files globally\n" " --runtime Enable unit files only temporarily until next 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 unit files in the specified root directory\n" " -n --lines=INTEGER Number of journal entries to show\n" " -o --output=STRING Change journal output mode (short, short-iso,\n" " short-precise, short-monotonic, verbose,\n" " export, json, json-pretty, json-sse, cat)\n" " --firmware-setup Tell the firmware to show the setup menu on next boot\n" " --plain Print unit dependencies as a list instead of a tree\n\n" "Unit Commands:\n" " list-units [PATTERN...] List loaded units\n" " list-sockets [PATTERN...] List loaded sockets ordered by address\n" " list-timers [PATTERN...] List loaded timers ordered by next elapse\n" " start NAME... Start (activate) one or more units\n" " stop NAME... Stop (deactivate) one or more units\n" " reload NAME... Reload one or more units\n" " restart NAME... Start or restart one or more units\n" " try-restart NAME... Restart one or more units if active\n" " reload-or-restart NAME... Reload one or more units if possible,\n" " otherwise start or restart\n" " try-reload-or-restart NAME... If active, reload one or more units,\n" " if supported, otherwise restart\n" " isolate NAME Start one unit and stop all others\n" " kill NAME... Send signal to processes of a 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 one or more units\n" " set-property NAME ASSIGNMENT... 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 [NAME] Recursively show units which are required\n" " or wanted by this unit or by which this\n" " unit is required or wanted\n\n" "Unit File Commands:\n" " list-unit-files [PATTERN...] List installed unit files\n" " enable NAME... Enable one or more unit files\n" " disable NAME... Disable one or more unit files\n" " reenable NAME... Reenable one or more unit files\n" " preset NAME... 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 NAME... Check whether unit files are enabled\n" " mask NAME... Mask one or more units\n" " unmask NAME... Unmask one or more units\n" " link PATH... Link one or more units files into\n" " the search path\n" " revert NAME... Revert one or more unit files to vendor\n" " version\n" " add-wants TARGET NAME... Add 'Wants' dependency for the target\n" " on specified one or more units\n" " add-requires TARGET NAME... Add 'Requires' dependency for the target\n" " on specified one or more units\n" " edit NAME... Edit one or more unit files\n" " get-default Get the name of the default target\n" " set-default NAME Set the default target\n\n" "Machine Commands:\n" " list-machines [PATTERN...] List local containers and host\n\n" "Job Commands:\n" " list-jobs [PATTERN...] List jobs\n" " cancel [JOB...] Cancel all, one, or more jobs\n\n" "Environment Commands:\n" " show-environment Dump environment\n" " set-environment NAME=VALUE... Set one or more environment variables\n" " unset-environment NAME... Unset one or more environment variables\n" " import-environment [NAME...] Import all or some environment variables\n\n" "Manager Lifecycle Commands:\n" " daemon-reload Reload systemd manager configuration\n" " daemon-reexec Reexecute systemd manager\n\n" "System Commands:\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", program_invocation_short_name); } static void halt_help(void) { 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", program_invocation_short_name, arg_action == ACTION_REBOOT ? " [ARG]" : "", arg_action == ACTION_REBOOT ? "Reboot" : arg_action == ACTION_POWEROFF ? "Power off" : "Halt"); } static void shutdown_help(void) { 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", program_invocation_short_name); } static void telinit_help(void) { 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", program_invocation_short_name); } static void runlevel_help(void) { printf("%s [OPTIONS...]\n\n" "Prints the previous and current runlevel of the init system.\n\n" " --help Show this help\n", program_invocation_short_name); } static void help_types(void) { int i; if (!arg_no_legend) puts("Available unit types:"); for (i = 0; i < _UNIT_TYPE_MAX; i++) puts(unit_type_to_string(i)); } static void help_states(void) { int i; if (!arg_no_legend) puts("Available unit load states:"); for (i = 0; i < _UNIT_LOAD_STATE_MAX; i++) puts(unit_load_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable unit active states:"); for (i = 0; i < _UNIT_ACTIVE_STATE_MAX; i++) puts(unit_active_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable automount unit substates:"); for (i = 0; i < _AUTOMOUNT_STATE_MAX; i++) puts(automount_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable busname unit substates:"); for (i = 0; i < _BUSNAME_STATE_MAX; i++) puts(busname_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable device unit substates:"); for (i = 0; i < _DEVICE_STATE_MAX; i++) puts(device_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable mount unit substates:"); for (i = 0; i < _MOUNT_STATE_MAX; i++) puts(mount_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable path unit substates:"); for (i = 0; i < _PATH_STATE_MAX; i++) puts(path_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable scope unit substates:"); for (i = 0; i < _SCOPE_STATE_MAX; i++) puts(scope_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable service unit substates:"); for (i = 0; i < _SERVICE_STATE_MAX; i++) puts(service_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable slice unit substates:"); for (i = 0; i < _SLICE_STATE_MAX; i++) puts(slice_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable socket unit substates:"); for (i = 0; i < _SOCKET_STATE_MAX; i++) puts(socket_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable swap unit substates:"); for (i = 0; i < _SWAP_STATE_MAX; i++) puts(swap_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable target unit substates:"); for (i = 0; i < _TARGET_STATE_MAX; i++) puts(target_state_to_string(i)); if (!arg_no_legend) puts("\nAvailable timer unit substates:"); for (i = 0; i < _TIMER_STATE_MAX; i++) puts(timer_state_to_string(i)); } static int systemctl_parse_argv(int argc, char *argv[]) { enum { ARG_FAIL = 0x100, ARG_REVERSE, ARG_AFTER, ARG_BEFORE, 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_FORCE, ARG_PLAIN, ARG_STATE, ARG_JOB_MODE, ARG_PRESET_MODE, ARG_FIRMWARE_SETUP, ARG_NOW, ARG_MESSAGE, }; 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 }, { "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 }, { "quiet", no_argument, NULL, 'q' }, { "root", required_argument, NULL, ARG_ROOT }, { "force", no_argument, NULL, ARG_FORCE }, { "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 }, { "now", no_argument, NULL, ARG_NOW }, { "message", required_argument, NULL, ARG_MESSAGE }, {} }; const char *p; 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:ir", options, NULL)) >= 0) switch (c) { case 'h': systemctl_help(); return 0; case ARG_VERSION: return version(); case 't': { if (isempty(optarg)) { log_error("--type requires arguments."); return -EINVAL; } p = optarg; for (;;) { _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_push(&arg_types, type) < 0) return log_oom(); type = NULL; 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_push(&arg_states, type) < 0) return log_oom(); type = NULL; continue; } log_error("Unknown unit type or load state '%s'.", type); log_info("Use -t help to see a list of allowed values."); return -EINVAL; } 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 { p = optarg; for (;;) { _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_push(&arg_properties, prop) < 0) return log_oom(); prop = NULL; } } /* 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; break; case ARG_BEFORE: arg_dependency = DEPENDENCY_BEFORE; 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_NO_BLOCK: arg_no_block = true; break; case ARG_NO_LEGEND: arg_no_legend = true; break; case ARG_NO_PAGER: arg_no_pager = true; 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 'q': arg_quiet = true; break; case ARG_FORCE: arg_force++; 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': arg_signal = signal_from_string_try_harder(optarg); if (arg_signal < 0) { log_error("Failed to parse signal string %s.", optarg); return -EINVAL; } 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) { log_error("Failed to parse lines '%s'", optarg); return -EINVAL; } break; case 'o': arg_output = output_mode_from_string(optarg); if (arg_output < 0) { log_error("Unknown output '%s'.", optarg); return -EINVAL; } 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_STATE: { if (isempty(optarg)) { log_error("--signal requires arguments."); return -EINVAL; } p = optarg; for (;;) { _cleanup_free_ char *s = NULL; r = extract_first_word(&p, &s, ",", 0); if (r < 0) return log_error_errno(r, "Failed to parse signal: %s", optarg); if (r == 0) break; if (streq(s, "help")) { help_states(); return 0; } if (strv_push(&arg_states, s) < 0) return log_oom(); s = NULL; } break; } case 'r': if (geteuid() != 0) { log_error("--recursive requires root privileges."); return -EPERM; } arg_recursive = true; break; case ARG_PRESET_MODE: arg_preset_mode = unit_file_preset_mode_from_string(optarg); if (arg_preset_mode < 0) { log_error("Failed to parse preset mode: %s.", optarg); return -EINVAL; } break; case ARG_NOW: arg_now = true; break; case ARG_MESSAGE: if (strv_extend(&arg_wall, optarg) < 0) return log_oom(); break; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) { log_error("Cannot access user instance remotely."); return -EINVAL; } 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 (runlevel == '0' || runlevel == '6') arg_force = 2; while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) switch (c) { case ARG_HELP: halt_help(); return 0; 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 = 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); if (r < 0) return r; } else if (optind < argc) { log_error("Too many arguments."); return -EINVAL; } return 1; } static int parse_shutdown_time_spec(const char *t, usec_t *_u) { assert(t); assert(_u); if (streq(t, "now")) *_u = 0; else if (!strchr(t, ':')) { uint64_t u; if (safe_atou64(t, &u) < 0) return -EINVAL; *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u; } else { char *e = NULL; long hour, minute; struct tm tm = {}; time_t s; usec_t n; errno = 0; hour = strtol(t, &e, 10); if (errno > 0 || *e != ':' || hour < 0 || hour > 23) return -EINVAL; minute = strtol(e+1, &e, 10); if (errno > 0 || *e != 0 || minute < 0 || minute > 59) return -EINVAL; n = now(CLOCK_REALTIME); s = (time_t) (n / USEC_PER_SEC); assert_se(localtime_r(&s, &tm)); tm.tm_hour = (int) hour; tm.tm_min = (int) minute; tm.tm_sec = 0; assert_se(s = mktime(&tm)); *_u = (usec_t) s * USEC_PER_SEC; while (*_u <= n) *_u += USEC_PER_DAY; } return 0; } 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, "HPrhkKtafFc", options, NULL)) >= 0) switch (c) { case ARG_HELP: shutdown_help(); return 0; 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 = true; break; case ARG_NO_WALL: arg_no_wall = true; break; case 't': case 'a': 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: telinit_help(); return 0; case ARG_NO_WALL: arg_no_wall = true; break; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (optind >= argc) { log_error("%s: required argument missing.", program_invocation_short_name); return -EINVAL; } if (optind + 1 < argc) { log_error("Too many arguments."); return -EINVAL; } if (strlen(argv[optind]) != 1) { log_error("Expected single character argument."); return -EINVAL; } for (i = 0; i < ELEMENTSOF(table); i++) if (table[i].from == argv[optind][0]) break; if (i >= ELEMENTSOF(table)) { log_error("Unknown command '%s'.", argv[optind]); return -EINVAL; } 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: runlevel_help(); return 0; case '?': return -EINVAL; default: assert_not_reached("Unhandled option"); } if (optind < argc) { log_error("Too many arguments."); return -EINVAL; } 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")) { 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. */ execv(TELINIT, argv); log_error("Couldn't find an alternative telinit implementation to spawn."); return -EIO; } } 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); } #ifdef 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 < _ACTION_MAX); return table[arg_action]; } #endif static int talk_initctl(void) { #ifdef HAVE_SYSV_COMPAT struct init_request request = { .magic = INIT_MAGIC, .sleeptime = 0, .cmd = INIT_CMD_RUNLVL }; _cleanup_close_ int fd = -1; char rl; int r; rl = action_to_runlevel(); if (!rl) return 0; request.runlevel = rl; fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY); if (fd < 0) { if (errno == ENOENT) return 0; return log_error_errno(errno, "Failed to open "INIT_FIFO": %m"); } r = loop_write(fd, &request, sizeof(request), false); if (r < 0) return log_error_errno(r, "Failed to write to "INIT_FIFO": %m"); return 1; #else return 0; #endif } static int systemctl_main(int argc, char *argv[]) { static const Verb verbs[] = { { "list-units", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_NOCHROOT, list_units }, { "list-unit-files", VERB_ANY, VERB_ANY, 0, list_unit_files }, { "list-sockets", VERB_ANY, VERB_ANY, VERB_NOCHROOT, list_sockets }, { "list-timers", VERB_ANY, VERB_ANY, VERB_NOCHROOT, list_timers }, { "list-jobs", VERB_ANY, VERB_ANY, VERB_NOCHROOT, list_jobs }, { "list-machines", VERB_ANY, VERB_ANY, VERB_NOCHROOT, list_machines }, { "clear-jobs", VERB_ANY, 1, VERB_NOCHROOT, daemon_reload }, { "cancel", VERB_ANY, VERB_ANY, VERB_NOCHROOT, cancel_job }, { "start", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "stop", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "condstop", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, /* For compatibility with ALTLinux */ { "reload", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "restart", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "try-restart", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "reload-or-restart", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "reload-or-try-restart", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, /* For compatbility with old systemctl <= 228 */ { "try-reload-or-restart", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, { "force-reload", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, /* For compatibility with SysV */ { "condreload", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, /* For compatibility with ALTLinux */ { "condrestart", 2, VERB_ANY, VERB_NOCHROOT, start_unit }, /* For compatibility with RH */ { "isolate", 2, 2, VERB_NOCHROOT, start_unit }, { "kill", 2, VERB_ANY, VERB_NOCHROOT, kill_unit }, { "is-active", 2, VERB_ANY, VERB_NOCHROOT, check_unit_active }, { "check", 2, VERB_ANY, VERB_NOCHROOT, check_unit_active }, { "is-failed", 2, VERB_ANY, VERB_NOCHROOT, check_unit_failed }, { "show", VERB_ANY, VERB_ANY, VERB_NOCHROOT, show }, { "cat", 2, VERB_ANY, VERB_NOCHROOT, cat }, { "status", VERB_ANY, VERB_ANY, VERB_NOCHROOT, show }, { "help", VERB_ANY, VERB_ANY, VERB_NOCHROOT, show }, { "daemon-reload", VERB_ANY, 1, VERB_NOCHROOT, daemon_reload }, { "daemon-reexec", VERB_ANY, 1, VERB_NOCHROOT, daemon_reload }, { "show-environment", VERB_ANY, 1, VERB_NOCHROOT, show_environment }, { "set-environment", 2, VERB_ANY, VERB_NOCHROOT, set_environment }, { "unset-environment", 2, VERB_ANY, VERB_NOCHROOT, set_environment }, { "import-environment", VERB_ANY, VERB_ANY, VERB_NOCHROOT, import_environment}, { "halt", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "poweroff", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "reboot", VERB_ANY, 2, VERB_NOCHROOT, start_special }, { "kexec", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "suspend", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "hibernate", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "hybrid-sleep", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "default", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "rescue", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "emergency", VERB_ANY, 1, VERB_NOCHROOT, start_special }, { "exit", VERB_ANY, 2, VERB_NOCHROOT, start_special }, { "reset-failed", VERB_ANY, VERB_ANY, VERB_NOCHROOT, 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_NOCHROOT, switch_root }, { "list-dependencies", VERB_ANY, 2, VERB_NOCHROOT, list_dependencies }, { "set-default", 2, 2, 0, set_default }, { "get-default", VERB_ANY, 1, 0, get_default }, { "set-property", 3, VERB_ANY, VERB_NOCHROOT, 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_NOCHROOT, 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(arg_action == ACTION_RELOAD || arg_action == 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; /* Nothing else worked, so let's try * /dev/initctl */ if (talk_initctl() > 0) return 0; log_error("Failed to talk to init daemon."); return -EIO; } static int halt_now(enum action a) { int r; /* The kernel will automaticall flush ATA disks and suchlike * on reboot(), but the file systems need to be synce'd * explicitly in advance. */ if (!arg_no_sync) (void) sync(); /* Make sure C-A-D is handled by the kernel from this point * on... */ (void) reboot(RB_ENABLE_CAD); switch (a) { case ACTION_HALT: log_info("Halting."); (void) reboot(RB_HALT_SYSTEM); return -errno; case ACTION_POWEROFF: log_info("Powering off."); (void) reboot(RB_POWER_OFF); return -errno; case ACTION_KEXEC: case ACTION_REBOOT: { _cleanup_free_ char *param = NULL; r = read_one_line_file("/run/systemd/reboot-param", ¶m); if (r < 0) log_warning_errno(r, "Failed to read reboot parameter file: %m"); if (!isempty(param)) { log_info("Rebooting with argument '%s'.", param); (void) syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, param); log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m"); } log_info("Rebooting."); (void) reboot(RB_AUTOBOOT); return -errno; } default: assert_not_reached("Unknown action."); } } static int logind_schedule_shutdown(void) { #ifdef HAVE_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; (void) logind_set_wall_message(); 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) action = strjoina("dry-", action); 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)); log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", format_timestamp(date, sizeof(date), arg_when)); return 0; #else log_error("Cannot schedule shutdown without logind support, proceeding with immediate shutdown."); return -ENOSYS; #endif } static int halt_main(void) { int r; r = logind_check_inhibitors(arg_action); if (r < 0) return r; if (arg_when > 0) return logind_schedule_shutdown(); if (geteuid() != 0) { if (arg_dry || arg_force > 0) { log_error("Must be root."); return -EPERM; } /* Try logind if we are a normal user and no special * mode applies. Maybe PolicyKit allows us to shutdown * the machine. */ if (IN_SET(arg_action, ACTION_POWEROFF, ACTION_REBOOT)) { 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 */ } } if (!arg_dry && !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) 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) { #ifdef HAVE_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 log_error("Not compiled with logind support, cannot cancel scheduled shutdowns."); return -ENOSYS; #endif } int main(int argc, char*argv[]) { int r; setlocale(LC_ALL, ""); log_parse_environment(); log_open(); /* 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) { 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; 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: case ACTION_EMERGENCY: case ACTION_DEFAULT: 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_INVALID: default: assert_not_reached("Unknown action"); } finish: pager_close(); ask_password_agent_close(); polkit_agent_close(); strv_free(arg_types); strv_free(arg_states); strv_free(arg_properties); strv_free(arg_wall); free(arg_root); release_busses(); /* Note that we return r here, not EXIT_SUCCESS, so that we can implement the LSB-like return codes */ return r < 0 ? EXIT_FAILURE : r; }