diff options
Diffstat (limited to 'src/systemctl/systemctl.c')
| -rw-r--r-- | src/systemctl/systemctl.c | 8407 |
1 files changed, 0 insertions, 8407 deletions
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c deleted file mode 100644 index dd3b931cd6..0000000000 --- a/src/systemctl/systemctl.c +++ /dev/null @@ -1,8407 +0,0 @@ -/*** - 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 <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <getopt.h> -#include <linux/reboot.h> -#include <locale.h> -#include <stdbool.h> -#include <stddef.h> -#include <stdio.h> -#include <string.h> -#include <sys/reboot.h> -#include <sys/socket.h> -#include <unistd.h> - -#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 "sigbus.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" - -/* The init script exit status codes - 0 program is running or service is OK - 1 program is dead and /var/run pid file exists - 2 program is dead and /var/lock lock file exists - 3 program is not running - 4 program or service status is unknown - 5-99 reserved for future LSB use - 100-149 reserved for distribution use - 150-199 reserved for application use - 200-254 reserved -*/ -enum { - EXIT_PROGRAM_RUNNING_OR_SERVICE_OK = 0, - EXIT_PROGRAM_DEAD_AND_PID_EXISTS = 1, - EXIT_PROGRAM_DEAD_AND_LOCK_FILE_EXISTS = 2, - EXIT_PROGRAM_NOT_RUNNING = 3, - EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN = 4, -}; - -static char **arg_types = NULL; -static char **arg_states = NULL; -static char **arg_properties = NULL; -static bool arg_all = false; -static enum dependency { - DEPENDENCY_FORWARD, - DEPENDENCY_REVERSE, - DEPENDENCY_AFTER, - DEPENDENCY_BEFORE, - _DEPENDENCY_MAX -} arg_dependency = DEPENDENCY_FORWARD; -static const char *arg_job_mode = "replace"; -static UnitFileScope arg_scope = UNIT_FILE_SYSTEM; -static bool arg_wait = false; -static bool arg_no_block = false; -static bool arg_no_legend = false; -static 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 trivial_method(int argc, char *argv[], void *userdata); -static int halt_now(enum action a); -static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state); - -static bool original_stdout_is_tty; - -typedef enum BusFocus { - BUS_FULL, /* The full bus indicated via --system or --user */ - BUS_MANAGER, /* The manager itself, possibly directly, possibly via the bus */ - _BUS_FOCUS_MAX -} BusFocus; - -static sd_bus *busses[_BUS_FOCUS_MAX] = {}; - -static UnitFileFlags args_to_flags(void) { - return (arg_runtime ? UNIT_FILE_RUNTIME : 0) | - (arg_force ? UNIT_FILE_FORCE : 0); -} - -static int acquire_bus(BusFocus focus, sd_bus **ret) { - int r; - - assert(focus < _BUS_FOCUS_MAX); - assert(ret); - - /* We only go directly to the manager, if we are using a local transport */ - if (arg_transport != BUS_TRANSPORT_LOCAL) - focus = BUS_FULL; - - if (!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 int map_string_no_copy(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { - char *s; - const char **p = userdata; - int r; - - r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &s); - if (r < 0) - return r; - - if (!isempty(s)) - *p = s; - - return 0; -} - -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 const char* unit_type_suffix(const char *name) { - const char *dot; - - dot = strrchr(name, '.'); - if (!dot) - return ""; - - return dot + 1; -} - -static bool output_show_unit(const UnitInfo *u, char **patterns) { - assert(u); - - if (!strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE)) - return false; - - if (arg_types && !strv_find(arg_types, unit_type_suffix(u->id))) - return false; - - if (arg_all) - return true; - - /* Note that '--all' is not purely a state filter, but also a - * filter that hides units that "follow" other units (which is - * used for device units that appear under different names). */ - if (!isempty(u->following)) - return false; - - if (!strv_isempty(arg_states)) - return true; - - /* By default show all units except the ones in inactive - * state and with no pending job */ - if (u->job_id > 0) - return true; - - if (streq(u->active_state, "inactive")) - return false; - - return true; -} - -static int output_units_list(const UnitInfo *unit_infos, unsigned c) { - unsigned circle_len = 0, id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len, max_desc_len; - const UnitInfo *u; - unsigned n_shown = 0; - int job_count = 0; - - max_id_len = strlen("UNIT"); - load_len = strlen("LOAD"); - active_len = strlen("ACTIVE"); - sub_len = strlen("SUB"); - job_len = strlen("JOB"); - max_desc_len = strlen("DESCRIPTION"); - - for (u = unit_infos; u < unit_infos + c; u++) { - max_id_len = MAX(max_id_len, strlen(u->id) + (u->machine ? strlen(u->machine)+1 : 0)); - load_len = MAX(load_len, strlen(u->load_state)); - active_len = MAX(active_len, strlen(u->active_state)); - sub_len = MAX(sub_len, strlen(u->sub_state)); - max_desc_len = MAX(max_desc_len, strlen(u->description)); - - if (u->job_id != 0) { - job_len = MAX(job_len, strlen(u->job_type)); - job_count++; - } - - if (!arg_no_legend && - (streq(u->active_state, "failed") || - STR_IN_SET(u->load_state, "error", "not-found", "masked"))) - circle_len = 2; - } - - if (!arg_full && original_stdout_is_tty) { - unsigned basic_len; - - id_len = MIN(max_id_len, 25u); /* as much as it needs, but at most 25 for now */ - basic_len = circle_len + 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; - - /* Of the remainder give as much as the ID needs to the ID, and give the rest to the - * description but not more than it needs. */ - if (extra_len > 0) { - incr = MIN(max_id_len - id_len, extra_len); - id_len += incr; - desc_len += MIN(extra_len - incr, max_desc_len - desc_len); - } - } - } else { - id_len = max_id_len; - desc_len = max_desc_len; - } - - for (u = unit_infos; u < unit_infos + c; u++) { - _cleanup_free_ char *e = NULL, *j = NULL; - const char *on_underline = "", *off_underline = ""; - const char *on_loaded = "", *off_loaded = ""; - const char *on_active = "", *off_active = ""; - const char *on_circle = "", *off_circle = ""; - const char *id; - bool circle = false, underline = false; - - if (!n_shown && !arg_no_legend) { - - if (circle_len > 0) - fputs(" ", stdout); - - printf("%s%-*s %-*s %-*s %-*s ", - ansi_underline(), - id_len, "UNIT", - load_len, "LOAD", - active_len, "ACTIVE", - sub_len, "SUB"); - - if (job_count) - printf("%-*s ", job_len, "JOB"); - - printf("%-*.*s%s\n", - desc_len, - !arg_full && arg_no_pager ? (int) desc_len : -1, - "DESCRIPTION", - ansi_normal()); - } - - n_shown++; - - if (u + 1 < unit_infos + c && - !streq(unit_type_suffix(u->id), unit_type_suffix((u + 1)->id))) { - on_underline = ansi_underline(); - off_underline = ansi_normal(); - underline = true; - } - - if (STR_IN_SET(u->load_state, "error", "not-found", "masked") && !arg_plain) { - on_circle = ansi_highlight_yellow(); - off_circle = ansi_normal(); - circle = true; - on_loaded = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); - off_loaded = underline ? on_underline : ansi_normal(); - } else if (streq(u->active_state, "failed") && !arg_plain) { - on_circle = ansi_highlight_red(); - off_circle = ansi_normal(); - circle = true; - on_active = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); - off_active = underline ? on_underline : ansi_normal(); - } - - if (u->machine) { - j = strjoin(u->machine, ":", u->id, 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 %-*s", - on_underline, - on_active, id_len, id, off_active, - on_loaded, load_len, u->load_state, off_loaded, - on_active, active_len, u->active_state, - sub_len, u->sub_state, off_active, - job_count ? job_len + 1 : 0, u->job_id ? u->job_type : ""); - - printf("%-*.*s%s\n", - desc_len, - !arg_full && arg_no_pager ? (int) desc_len : -1, - u->description, - off_underline); - } - - if (!arg_no_legend) { - const char *on, *off; - - if (n_shown) { - puts("\n" - "LOAD = Reflects whether the unit definition was properly loaded.\n" - "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n" - "SUB = The low-level unit activation state, values depend on unit type."); - puts(job_count ? "JOB = Pending job for the unit.\n" : ""); - on = ansi_highlight(); - off = ansi_normal(); - } else { - on = ansi_highlight_red(); - off = ansi_normal(); - } - - if (arg_all) - 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) || - sd_bus_error_has_name(&error, SD_BUS_ERROR_ACCESS_DENIED))) { - /* Fallback to legacy ListUnitsFiltered method */ - fallback = true; - log_debug_errno(r, "Failed to list units: %s Falling back to ListUnitsFiltered method.", bus_error_message(&error, r)); - m = sd_bus_message_unref(m); - sd_bus_error_free(&error); - - r = sd_bus_message_new_method_call( - bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "ListUnitsFiltered"); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_append_strv(m, arg_states); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_call(bus, m, 0, &error, &reply); - } - if (r < 0) - return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r)); - - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = bus_parse_unit_info(reply, &u)) > 0) { - u.machine = machine; - - if (!output_show_unit(&u, fallback ? patterns : NULL)) - continue; - - if (!GREEDY_REALLOC(*unit_infos, size, c+1)) - return log_oom(); - - (*unit_infos)[c++] = u; - } - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_exit_container(reply); - if (r < 0) - return bus_log_parse_error(r); - - *_reply = 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; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - pager_open(arg_no_pager, false); - - 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; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - pager_open(arg_no_pager, false); - - 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; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - pager_open(arg_no_pager, false); - - 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 %-*s%s\n", - ansi_underline(), - id_cols, "UNIT FILE", - state_cols, "STATE", - ansi_normal()); - - for (u = units; u < units + c; u++) { - _cleanup_free_ char *e = NULL; - const char *on, *off, *on_underline = "", *off_underline = ""; - const char *id; - bool underline = false; - - if (u + 1 < units + c && - !streq(unit_type_suffix(u->path), unit_type_suffix((u + 1)->path))) { - on_underline = ansi_underline(); - off_underline = ansi_normal(); - underline = true; - } - - if (IN_SET(u->state, - UNIT_FILE_MASKED, - UNIT_FILE_MASKED_RUNTIME, - UNIT_FILE_DISABLED, - UNIT_FILE_BAD)) - on = underline ? ansi_highlight_red_underline() : ansi_highlight_red(); - else if (u->state == UNIT_FILE_ENABLED) - on = underline ? ansi_highlight_green_underline() : ansi_highlight_green(); - else - on = on_underline; - off = off_underline; - - id = basename(u->path); - - e = arg_full ? NULL : ellipsize(id, id_cols, 33); - - printf("%s%-*s %s%-*s%s%s\n", - on_underline, - id_cols, e ? e : id, - on, state_cols, unit_file_state_to_string(u->state), off, - off_underline); - } - - if (!arg_no_legend) - printf("\n%u unit files listed.\n", c); -} - -static int list_unit_files(int argc, char *argv[], void *userdata) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ UnitFileList *units = NULL; - UnitFileList *unit; - size_t size = 0; - unsigned c = 0; - const char *state; - char *path; - int r; - bool fallback = false; - - if (install_client_side()) { - Hashmap *h; - UnitFileList *u; - Iterator i; - unsigned n_units; - - h = hashmap_new(&string_hash_ops); - if (!h) - return log_oom(); - - r = unit_file_get_list(arg_scope, arg_root, h, arg_states, strv_skip(argv, 1)); - if (r < 0) { - unit_file_list_free(h); - return log_error_errno(r, "Failed to get unit file list: %m"); - } - - n_units = hashmap_size(h); - - units = new(UnitFileList, n_units ?: 1); /* avoid malloc(0) */ - if (!units) { - unit_file_list_free(h); - return log_oom(); - } - - HASHMAP_FOREACH(u, h, i) { - if (!output_show_unit_file(u, NULL, NULL)) - continue; - - units[c++] = *u; - free(u); - } - - assert(c <= n_units); - hashmap_free(h); - - r = 0; - } else { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - sd_bus *bus; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - r = sd_bus_message_new_method_call( - bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "ListUnitFilesByPatterns"); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_append_strv(m, arg_states); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_append_strv(m, strv_skip(argv, 1)); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_call(bus, m, 0, &error, &reply); - if (r < 0 && sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)) { - /* Fallback to legacy ListUnitFiles method */ - fallback = true; - log_debug_errno(r, "Failed to list unit files: %s Falling back to ListUnitsFiles method.", bus_error_message(&error, r)); - m = sd_bus_message_unref(m); - sd_bus_error_free(&error); - - r = sd_bus_message_new_method_call( - bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "ListUnitFiles"); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_call(bus, m, 0, &error, &reply); - } - if (r < 0) - return log_error_errno(r, "Failed to list unit files: %s", bus_error_message(&error, r)); - - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) { - - if (!GREEDY_REALLOC(units, size, c + 1)) - return log_oom(); - - units[c] = (struct UnitFileList) { - path, - unit_file_state_from_string(state) - }; - - if (output_show_unit_file(&units[c], - fallback ? arg_states : NULL, - fallback ? strv_skip(argv, 1) : NULL)) - c++; - - } - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_exit_container(reply); - if (r < 0) - return bus_log_parse_error(r); - } - - pager_open(arg_no_pager, false); - - 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; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - pager_open(arg_no_pager, false); - - puts(u); - - return list_dependencies_one(bus, u, 0, &units, 0); -} - -struct machine_info { - bool is_host; - char *name; - char *state; - char *control_group; - uint32_t n_failed_units; - uint32_t n_jobs; - usec_t timestamp; -}; - -static const struct bus_properties_map machine_info_property_map[] = { - { "SystemState", "s", NULL, offsetof(struct machine_info, state) }, - { "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) }, - { "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) }, - { "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) }, - { "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) }, - {} -}; - -static void machine_info_clear(struct machine_info *info) { - assert(info); - - free(info->name); - free(info->state); - free(info->control_group); - zero(*info); -} - -static void free_machines_list(struct machine_info *machine_infos, int n) { - int i; - - if (!machine_infos) - return; - - for (i = 0; i < n; i++) - machine_info_clear(&machine_infos[i]); - - free(machine_infos); -} - -static int compare_machine_info(const 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; - } - - 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; - - pager_open(arg_no_pager, false); - - 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, UNIT_FILE_FORCE, arg_root, unit, &changes, &n_changes); - unit_file_dump_changes(r, "set default", changes, n_changes, arg_quiet); - - if (r > 0) - r = 0; - } else { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - sd_bus *bus; - - polkit_agent_open_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; - - 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); - - pager_open(arg_no_pager, false); - - 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 trivial_method(argc, argv, userdata); - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - 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 && !arg_force) - log_error("No files found for %s.", unit_name); - - return r; -} - -static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(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"; -} - -typedef struct { - sd_bus_slot *match; - sd_event *event; - Set *unit_paths; - bool any_failed; -} WaitContext; - -static void wait_context_free(WaitContext *c) { - c->match = sd_bus_slot_unref(c->match); - c->event = sd_event_unref(c->event); - c->unit_paths = set_free_free(c->unit_paths); -} - -static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) { - WaitContext *c = userdata; - const char *path; - int r; - - path = sd_bus_message_get_path(m); - if (!set_contains(c->unit_paths, path)) - return 0; - - /* Check if ActiveState changed to inactive/failed */ - /* (s interface, a{sv} changed_properties, as invalidated_properties) */ - r = sd_bus_message_skip(m, "s"); - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { - const char *s; - - r = sd_bus_message_read(m, "s", &s); - if (r < 0) - return bus_log_parse_error(r); - - if (streq(s, "ActiveState")) { - bool is_failed; - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, "s"); - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_read(m, "s", &s); - if (r < 0) - return bus_log_parse_error(r); - - is_failed = streq(s, "failed"); - if (streq(s, "inactive") || is_failed) { - log_debug("%s became %s, dropping from --wait tracking", path, s); - free(set_remove(c->unit_paths, path)); - c->any_failed = c->any_failed || is_failed; - } else - log_debug("ActiveState on %s changed to %s", path, s); - - break; /* no need to dissect the rest of the message */ - } else { - /* other property */ - r = sd_bus_message_skip(m, "v"); - 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 (r < 0) - return bus_log_parse_error(r); - - if (set_isempty(c->unit_paths)) - sd_event_exit(c->event, EXIT_SUCCESS); - - return 0; -} - -static int start_unit_one( - sd_bus *bus, - const char *method, - const char *name, - const char *mode, - sd_bus_error *error, - BusWaitForJobs *w, - WaitContext *wait_context) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - const char *path; - int r; - - assert(method); - assert(name); - assert(mode); - assert(error); - - if (wait_context) { - _cleanup_free_ char *unit_path = NULL; - const char* mt; - - log_debug("Watching for property changes of %s", name); - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "RefUnit", - error, - NULL, - "s", name); - if (r < 0) - return log_error_errno(r, "Failed to RefUnit %s: %s", name, bus_error_message(error, r)); - - unit_path = unit_dbus_path_from_name(name); - if (!unit_path) - return log_oom(); - - r = set_put_strdup(wait_context->unit_paths, unit_path); - if (r < 0) - return log_error_errno(r, "Failed to add unit path %s to set: %m", unit_path); - - mt = strjoina("type='signal'," - "interface='org.freedesktop.DBus.Properties'," - "path='", unit_path, "'," - "member='PropertiesChanged'"); - r = sd_bus_add_match(bus, &wait_context->match, mt, on_properties_changed, wait_context); - if (r < 0) - return log_error_errno(r, "Failed to add match for PropertiesChanged signal: %m"); - } - - 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; - - /* There's always a fallback possible for legacy actions. */ - if (arg_action != ACTION_SYSTEMCTL) - return r; - - 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 %s' for details.", - arg_scope == UNIT_FILE_SYSTEM ? "system" : "user", - arg_scope == UNIT_FILE_SYSTEM ? "" : " --user", - name[0] == '-' ? " --" : "", - 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; - _cleanup_(wait_context_free) WaitContext wait_context = {}; - char **name; - int r = 0; - - if (arg_wait && !strstr(argv[0], "start")) { - log_error("--wait may only be used with a command that starts units."); - return -EINVAL; - } - - /* we cannot do sender tracking on the private bus, so we need the full - * one for RefUnit to implement --wait */ - r = acquire_bus(arg_wait ? BUS_FULL : BUS_MANAGER, &bus); - if (r < 0) - return r; - - ask_password_agent_open_if_enabled(); - polkit_agent_open_if_enabled(); - - 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"); - } - - if (arg_wait) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - - wait_context.unit_paths = set_new(&string_hash_ops); - if (!wait_context.unit_paths) - return log_oom(); - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "Subscribe", - &error, - NULL, NULL); - if (r < 0) - return log_error_errno(r, "Failed to enable subscription: %s", bus_error_message(&error, r)); - r = sd_event_default(&wait_context.event); - if (r < 0) - return log_error_errno(r, "Failed to allocate event loop: %m"); - r = sd_bus_attach_event(bus, wait_context.event, 0); - if (r < 0) - return log_error_errno(r, "Failed to attach bus to event loop: %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, arg_wait ? &wait_context : NULL); - 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); - } - - if (r >= 0 && arg_wait) { - int q; - q = sd_event_loop(wait_context.event); - if (q < 0) - return log_error_errno(q, "Failed to run event loop: %m"); - if (wait_context.any_failed) - r = EXIT_FAILURE; - } - - 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; - - 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; - } - - polkit_agent_open_if_enabled(); - (void) logind_set_wall_message(); - - 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; - - if (arg_transport != BUS_TRANSPORT_LOCAL) - return 0; - - r = acquire_bus(BUS_FULL, &bus); - if (r < 0) - return r; - - r = sd_bus_call_method( - bus, - "org.freedesktop.login1", - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - "ListInhibitors", - NULL, - &reply, - NULL); - if (r < 0) - /* If logind is not around, then there are no inhibitors... */ - return 0; - - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) { - _cleanup_free_ char *comm = NULL, *user = NULL; - _cleanup_strv_free_ char **sv = NULL; - - if (!streq(mode, "block")) - continue; - - sv = strv_split(what, ":"); - if (!sv) - return log_oom(); - - if ((pid_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 || !STR_IN_SET(type, "x11", "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 trivial_method(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 start_system_special(int argc, char *argv[], void *userdata) { - /* Like start_special above, but raises an error when running in user mode */ - - if (arg_scope != UNIT_FILE_SYSTEM) { - log_error("Bad action for %s mode.", - arg_scope == UNIT_FILE_GLOBAL ? "--global" : "--user"); - return -EINVAL; - } - - return start_special(argc, argv, userdata); -} - -static int check_unit_generic(int code, const UnitActiveState good_states[], int nb_states, char **args) { - _cleanup_strv_free_ char **names = NULL; - UnitActiveState active_state; - sd_bus *bus; - char **name; - int r, i; - bool found = false; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - r = expand_names(bus, args, NULL, &names); - if (r < 0) - return log_error_errno(r, "Failed to expand names: %m"); - - STRV_FOREACH(name, names) { - r = get_state_one_unit(bus, *name, &active_state); - if (r < 0) - return r; - - if (!arg_quiet) - puts(unit_active_state_to_string(active_state)); - - for (i = 0; i < nb_states; ++i) - if (good_states[i] == active_state) - found = true; - } - - /* use the given return code for the case that we won't find - * any unit which matches the list */ - return found ? 0 : code; -} - -static int check_unit_active(int argc, char *argv[], void *userdata) { - const UnitActiveState states[] = { UNIT_ACTIVE, UNIT_RELOADING }; - /* According to LSB: 3, "program is not running" */ - return check_unit_generic(EXIT_PROGRAM_NOT_RUNNING, states, ELEMENTSOF(states), strv_skip(argv, 1)); -} - -static int check_unit_failed(int argc, char *argv[], void *userdata) { - const UnitActiveState states[] = { UNIT_FAILED }; - return check_unit_generic(EXIT_PROGRAM_DEAD_AND_PID_EXISTS, states, ELEMENTSOF(states), strv_skip(argv, 1)); -} - -static int kill_unit(int argc, char *argv[], void *userdata) { - _cleanup_strv_free_ char **names = NULL; - char *kill_who = NULL, **name; - sd_bus *bus; - int r, q; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - if (!arg_kill_who) - arg_kill_who = "all"; - - /* --fail was specified */ - if (streq(arg_job_mode, "fail")) - kill_who = strjoina(arg_kill_who, "-fail"); - - r = expand_names(bus, strv_skip(argv, 1), NULL, &names); - if (r < 0) - return log_error_errno(r, "Failed to expand names: %m"); - - STRV_FOREACH(name, names) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - - q = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "KillUnit", - &error, - NULL, - "ssi", *name, kill_who ? kill_who : arg_kill_who, arg_signal); - if (q < 0) { - log_error_errno(q, "Failed to kill unit %s: %s", *name, bus_error_message(&error, q)); - if (r == 0) - r = q; - } - } - - return r; -} - -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 UnitCondition { - char *name; - char *param; - bool trigger; - bool negate; - int tristate; - - LIST_FIELDS(struct UnitCondition, conditions); -} UnitCondition; - -static void unit_condition_free(UnitCondition *c) { - if (!c) - return; - - free(c->name); - free(c->param); - free(c); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(UnitCondition*, unit_condition_free); - -typedef struct UnitStatusInfo { - const char *id; - const char *load_state; - const char *active_state; - const char *sub_state; - const char *unit_file_state; - const char *unit_file_preset; - - const char *description; - const char *following; - - char **documentation; - - const char *fragment_path; - const char *source_path; - const char *control_group; - - char **dropin_paths; - - const char *load_error; - const char *result; - - usec_t inactive_exit_timestamp; - usec_t inactive_exit_timestamp_monotonic; - usec_t active_enter_timestamp; - usec_t active_exit_timestamp; - usec_t inactive_enter_timestamp; - - bool need_daemon_reload; - bool transient; - - /* Service */ - pid_t main_pid; - pid_t control_pid; - const char *status_text; - const char *pid_file; - bool running:1; - int status_errno; - - usec_t start_timestamp; - usec_t exit_timestamp; - - int exit_code, exit_status; - - usec_t condition_timestamp; - bool condition_result; - LIST_HEAD(UnitCondition, conditions); - - usec_t assert_timestamp; - bool assert_result; - bool failed_assert_trigger; - bool failed_assert_negate; - const char *failed_assert; - const char *failed_assert_parameter; - - /* 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_swap_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 unit_status_info_free(UnitStatusInfo *info) { - ExecStatusInfo *p; - UnitCondition *c; - - strv_free(info->documentation); - strv_free(info->dropin_paths); - strv_free(info->listen); - - while ((c = info->conditions)) { - LIST_REMOVE(conditions, info->conditions, c); - unit_condition_free(c); - } - - while ((p = info->exec)) { - LIST_REMOVE(exec, info->exec, p); - exec_status_info_free(p); - } -} - -static void print_status_info( - sd_bus *bus, - UnitStatusInfo *i, - bool *ellipsized) { - - 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 (STRPTR_IN_SET(i->active_state, "active", "reloading")) { - active_on = ansi_highlight_green(); - active_off = ansi_normal(); - } else - active_on = active_off = ""; - - printf("%s%s%s %s", active_on, special_glyph(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 = STRPTR_IN_SET(i->active_state, "active", "reloading") ? i->active_enter_timestamp : - STRPTR_IN_SET(i->active_state, "inactive", "failed") ? i->inactive_enter_timestamp : - STRPTR_IN_SET(i->active_state, "activating") ? i->inactive_exit_timestamp : - i->active_exit_timestamp; - - s1 = format_timestamp_relative(since1, sizeof(since1), timestamp); - s2 = format_timestamp(since2, sizeof(since2), timestamp); - - if (s1) - printf(" since %s; %s\n", s2, s1); - else if (s2) - printf(" since %s\n", s2); - else - printf("\n"); - - if (!i->condition_result && i->condition_timestamp > 0) { - UnitCondition *c; - int n = 0; - - s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp); - s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp); - - printf("Condition: start %scondition failed%s at %s%s%s\n", - ansi_highlight_yellow(), ansi_normal(), - s2, s1 ? "; " : "", strempty(s1)); - - LIST_FOREACH(conditions, c, i->conditions) - if (c->tristate < 0) - n++; - - LIST_FOREACH(conditions, c, i->conditions) - if (c->tristate < 0) - printf(" %s %s=%s%s%s was not met\n", - --n ? special_glyph(TREE_BRANCH) : special_glyph(TREE_RIGHT), - c->name, - c->trigger ? "|" : "", - c->negate ? "!" : "", - c->param); - } - - if (!i->assert_result && i->assert_timestamp > 0) { - s1 = format_timestamp_relative(since1, sizeof(since1), i->assert_timestamp); - s2 = format_timestamp(since2, sizeof(since2), i->assert_timestamp); - - printf(" Assert: start %sassertion failed%s at %s%s%s\n", - ansi_highlight_red(), ansi_normal(), - s2, s1 ? "; " : "", strempty(s1)); - if (i->failed_assert_trigger) - printf(" none of the trigger assertions were met\n"); - else if (i->failed_assert) - printf(" %s=%s%s was not met\n", - i->failed_assert, - i->failed_assert_negate ? "!" : "", - i->failed_assert_parameter); - } - - if (i->sysfs_path) - printf(" Device: %s\n", i->sysfs_path); - if (i->where) - printf(" Where: %s\n", i->where); - if (i->what) - printf(" What: %s\n", i->what); - - STRV_FOREACH(t, i->documentation) - 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(p->code, p->status, EXIT_CLEAN_DAEMON, NULL); - if (!good) { - on = ansi_highlight_red(); - off = ansi_normal(); - } else - on = off = ""; - - printf("%s(code=%s, ", on, sigchld_code_to_string(p->code)); - - if (p->code == CLD_EXITED) { - const char *c; - - printf("status=%i", p->status); - - c = exit_status_to_string(p->status, EXIT_STATUS_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; - (void) get_process_comm(i->main_pid, &comm); - if (comm) - printf(" (%s)", comm); - } else if (i->exit_code > 0) { - printf(" (code=%s, ", sigchld_code_to_string(i->exit_code)); - - if (i->exit_code == CLD_EXITED) { - const char *c; - - printf("status=%i", i->exit_status); - - c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD); - if (c) - printf("/%s", c); - - } else - printf("signal=%s", signal_to_string(i->exit_status)); - printf(")"); - } - } - - if (i->control_pid > 0) { - _cleanup_free_ char *c = NULL; - - if (i->main_pid > 0) - fputs("; Control PID: ", stdout); - else - fputs("Cntrl PID: ", stdout); /* if first in column, abbreviated so it fits alignment */ - - printf(PID_FMT, i->control_pid); - - (void) get_process_comm(i->control_pid, &c); - if (c) - printf(" (%s)", c); - } - - printf("\n"); - } - - if (i->status_text) - printf(" Status: \"%s\"\n", i->status_text); - if (i->status_errno > 0) - printf(" Error: %i (%s)\n", i->status_errno, strerror(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: %" PRIu64 ")\n", i->tasks_max); - else - printf("\n"); - } - - if (i->memory_current != (uint64_t) -1) { - char buf[FORMAT_BYTES_MAX]; - - printf(" Memory: %s", format_bytes(buf, sizeof(buf), i->memory_current)); - - if (i->memory_low > 0 || i->memory_high != CGROUP_LIMIT_MAX || - i->memory_max != CGROUP_LIMIT_MAX || i->memory_swap_max != CGROUP_LIMIT_MAX || - i->memory_limit != CGROUP_LIMIT_MAX) { - const char *prefix = ""; - - printf(" ("); - if (i->memory_low > 0) { - printf("%slow: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_low)); - prefix = " "; - } - if (i->memory_high != CGROUP_LIMIT_MAX) { - printf("%shigh: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_high)); - prefix = " "; - } - if (i->memory_max != CGROUP_LIMIT_MAX) { - printf("%smax: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_max)); - prefix = " "; - } - if (i->memory_swap_max != CGROUP_LIMIT_MAX) { - printf("%sswap max: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_swap_max)); - prefix = " "; - } - if (i->memory_limit != CGROUP_LIMIT_MAX) { - printf("%slimit: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_limit)); - prefix = " "; - } - printf(")"); - } - printf("\n"); - } - - if (i->cpu_usage_nsec != (uint64_t) -1) { - char buf[FORMAT_TIMESPAN_MAX]; - printf(" CPU: %s\n", format_timespan(buf, sizeof(buf), i->cpu_usage_nsec / NSEC_PER_USEC, USEC_PER_MSEC)); - } - - if (i->control_group) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - static const char prefix[] = " "; - unsigned c; - - printf(" CGroup: %s\n", i->control_group); - - c = columns(); - if (c > sizeof(prefix) - 1) - c -= sizeof(prefix) - 1; - else - c = 0; - - r = unit_show_processes(bus, i->id, i->control_group, prefix, c, get_output_flags(), &error); - if (r == -EBADR) { - unsigned k = 0; - pid_t extra[2]; - - /* Fallback for older systemd versions where the GetUnitProcesses() call is not yet available */ - - if (i->main_pid > 0) - extra[k++] = i->main_pid; - - if (i->control_pid > 0) - extra[k++] = i->control_pid; - - show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, extra, k, get_output_flags()); - } else if (r < 0) - log_warning_errno(r, "Failed to dump process list, 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, "MemorySwapMax")) - i->memory_swap_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) { - _cleanup_(unit_condition_freep) UnitCondition *c = NULL; - - log_debug("%s trigger=%d negate=%d %s →%d", cond, trigger, negate, param, state); - - c = new0(UnitCondition, 1); - if (!c) - return log_oom(); - - c->name = strdup(cond); - c->param = strdup(param); - if (!c->name || !c->param) - return log_oom(); - - c->trigger = trigger; - c->negate = negate; - c->tristate = state; - - LIST_PREPEND(conditions, i->conditions, c); - c = NULL; - } - 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)", 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 && - STR_IN_SET(name, "IODeviceWeight", "BlockIODeviceWeight")) { - const char *path; - uint64_t weight; - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0) - 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 || - STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth"))) { - const char *path; - uint64_t bandwidth; - - r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0) - 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, - const char *unit, - bool show_properties, - bool *new_line, - bool *ellipsized) { - - static const struct bus_properties_map property_map[] = { - { "LoadState", "s", map_string_no_copy, offsetof(UnitStatusInfo, load_state) }, - { "ActiveState", "s", map_string_no_copy, offsetof(UnitStatusInfo, active_state) }, - {} - }; - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_set_free_ Set *found_properties = NULL; - _cleanup_(unit_status_info_free) UnitStatusInfo info = { - .memory_current = (uint64_t) -1, - .memory_high = CGROUP_LIMIT_MAX, - .memory_max = CGROUP_LIMIT_MAX, - .memory_swap_max = CGROUP_LIMIT_MAX, - .memory_limit = (uint64_t) -1, - .cpu_usage_nsec = (uint64_t) -1, - .tasks_current = (uint64_t) -1, - .tasks_max = (uint64_t) -1, - }; - 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)); - - if (unit) { - r = bus_message_map_all_properties(reply, property_map, &info); - if (r < 0) - return log_error_errno(r, "Failed to map properties: %s", bus_error_message(&error, r)); - - if (streq_ptr(info.load_state, "not-found") && streq_ptr(info.active_state, "inactive")) { - log_full(streq(verb, "status") ? LOG_ERR : LOG_DEBUG, - "Unit %s could not be found.", unit); - - if (streq(verb, "status")) - return EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN; - - if (!streq(verb, "show")) - return -ENOENT; - } - - r = sd_bus_message_rewind(reply, true); - if (r < 0) - return log_error_errno(r, "Failed to rewind: %s", bus_error_message(&error, r)); - } - - r = 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 = set_ensure_allocated(&found_properties, &string_hash_ops); - if (r < 0) - return log_oom(); - - r = set_put(found_properties, name); - if (r < 0 && r != EEXIST) - return log_oom(); - - 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) { - char **pp; - int not_found_level = streq(verb, "show") ? LOG_DEBUG : LOG_WARNING; - - STRV_FOREACH(pp, arg_properties) - if (!set_contains(found_properties, *pp)) { - log_full(not_found_level, "Property %s does not exist.", *pp); - r = -ENXIO; - } - - } else if (streq(verb, "help")) - show_unit_help(&info); - else if (streq(verb, "status")) { - print_status_info(bus, &info, ellipsized); - - if (info.active_state && !STR_IN_SET(info.active_state, "active", "reloading")) - r = EXIT_PROGRAM_NOT_RUNNING; - else - r = EXIT_PROGRAM_RUNNING_OR_SERVICE_OK; - } - - 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, u->id, 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; - } - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - 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)); - - /* If no argument is specified inspect the manager itself */ - if (show_properties && argc <= 1) - return show_one(argv[0], bus, "/org/freedesktop/systemd1", NULL, show_properties, &new_line, &ellipsized); - - if (show_status && argc <= 1) { - - 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 *path = NULL, *unit = NULL; - uint32_t id; - - if (safe_atou32(*name, &id) < 0) { - if (strv_push(&patterns, *name) < 0) - return log_oom(); - - continue; - } else if (show_properties) { - /* Interpret as job id */ - if (asprintf(&path, "/org/freedesktop/systemd1/job/%u", id) < 0) - return log_oom(); - - } else { - /* Interpret as PID */ - r = get_unit_dbus_path_by_pid(bus, id, &path); - if (r < 0) { - ret = r; - continue; - } - - r = unit_name_from_dbus_path(path, &unit); - if (r < 0) - return log_oom(); - } - - r = show_one(argv[0], bus, path, 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 *path; - - path = unit_dbus_path_from_name(*name); - if (!path) - return log_oom(); - - r = show_one(argv[0], bus, path, *name, show_properties, &new_line, &ellipsized); - if (r < 0) - return r; - if (r > 0 && ret == 0) - ret = r; - } - } - } - - if (ellipsized && !arg_quiet) - printf("Hint: Some lines were ellipsized, use -l to show in full.\n"); - - return ret; -} - -static int cat_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 (need_daemon_reload(bus, *name) > 0) /* ignore errors (<0), this is informational output */ - fprintf(stderr, - "%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n" - "%s# This output shows the current version of the unit's original fragment and drop-in files.\n" - "%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n" - "%s# Run 'systemctl%s daemon-reload' to reload units.%s\n", - ansi_highlight_red(), - *name, - ansi_highlight_red(), - ansi_highlight_red(), - ansi_highlight_red(), - arg_scope == UNIT_FILE_SYSTEM ? "" : " --user", - ansi_normal()); - - 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; - int r; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - 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); - - r = bus_append_unit_property_assignment_many(m, strv_skip(argv, 2)); - if (r < 0) - return r; - - r = sd_bus_message_close_container(m); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_call(bus, m, 0, &error, NULL); - if (r < 0) - return log_error_errno(r, "Failed to set unit properties on %s: %s", n, bus_error_message(&error, r)); - - return 0; -} - -static int daemon_reload(int argc, char *argv[], void *userdata) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; - const char *method; - sd_bus *bus; - int r; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - switch (arg_action) { - - case ACTION_RELOAD: - method = "Reload"; - break; - - case ACTION_REEXEC: - method = "Reexecute"; - break; - - case ACTION_SYSTEMCTL: - method = streq(argv[0], "daemon-reexec") ? "Reexecute" : - /* "daemon-reload" */ "Reload"; - break; - - default: - assert_not_reached("Unexpected action"); - } - - r = sd_bus_message_new_method_call( - bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - method); - if (r < 0) - return bus_log_create_error(r); - - /* Note we use an extra-long timeout here. This is because a reload or reexec means generators are rerun which - * are timed out after DEFAULT_TIMEOUT_USEC. Let's use twice that time here, so that the generators can have - * their timeout, and for everything else there's the same time budget in place. */ - - r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL); - - /* On reexecution, we expect a disconnect, not a reply */ - if (IN_SET(r, -ETIMEDOUT, -ECONNRESET) && streq(method, "Reexecute")) - r = 0; - - if (r < 0 && arg_action == ACTION_SYSTEMCTL) - return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r)); - - /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the - * old ways of doing things, hence don't log any error in that case here. */ - - return r < 0 ? r : 0; -} - -static int trivial_method(int argc, char *argv[], void *userdata) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - const char *method; - sd_bus *bus; - int r; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - method = - streq(argv[0], "clear-jobs") || - streq(argv[0], "cancel") ? "ClearJobs" : - streq(argv[0], "reset-failed") ? "ResetFailed" : - streq(argv[0], "halt") ? "Halt" : - streq(argv[0], "reboot") ? "Reboot" : - streq(argv[0], "kexec") ? "KExec" : - streq(argv[0], "exit") ? "Exit" : - /* poweroff */ "PowerOff"; - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - method, - &error, - NULL, - NULL); - if (r < 0 && arg_action == ACTION_SYSTEMCTL) - return log_error_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r)); - - /* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the - * old ways of doing things, hence don't log any error in that case here. */ - - return r < 0 ? r : 0; -} - -static int reset_failed(int argc, char *argv[], void *userdata) { - _cleanup_strv_free_ char **names = NULL; - sd_bus *bus; - char **name; - int r, q; - - if (argc <= 1) - return trivial_method(argc, argv, userdata); - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - 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; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - pager_open(arg_no_pager, false); - - 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); - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - method = streq(argv[0], "set-environment") - ? "SetEnvironment" - : "UnsetEnvironment"; - - r = sd_bus_message_new_method_call( - bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - method); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_message_append_strv(m, strv_skip(argv, 1)); - if (r < 0) - return bus_log_create_error(r); - - r = sd_bus_call(bus, m, 0, &error, NULL); - if (r < 0) - return log_error_errno(r, "Failed to set environment: %s", bus_error_message(&error, r)); - - return 0; -} - -static int import_environment(int argc, char *argv[], void *userdata) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; - sd_bus *bus; - int r; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - 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 (!arg_quiet) { - if (found_native) - log_info("Synchronizing state of %s with SysV service script with %s.", name, argv[0]); - else - log_info("%s is not a native service, redirecting to systemd-sysv-install.", name); - } - - if (!isempty(arg_root)) - 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) - return log_error_errno(j, "Failed to wait for child: %m"); - - 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 normalize_names(char **names, bool warn_if_path) { - char **u; - bool was_path = false; - - STRV_FOREACH(u, names) { - int r; - - if (!is_path(*u)) - continue; - - r = free_and_strdup(u, basename(*u)); - if (r < 0) - return log_error_errno(r, "Failed to normalize unit file path: %m"); - - was_path = true; - } - - if (warn_if_path && was_path) - log_warning("Warning: Can't execute disable on the unit file path. Proceeding with the unit name."); - - return 0; -} - -static int unit_exists(const char *unit) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_free_ char *path = NULL; - static const struct bus_properties_map property_map[] = { - { "LoadState", "s", map_string_no_copy, offsetof(UnitStatusInfo, load_state) }, - { "ActiveState", "s", map_string_no_copy, offsetof(UnitStatusInfo, active_state)}, - {}, - }; - UnitStatusInfo info = {}; - sd_bus *bus; - int r; - - path = unit_dbus_path_from_name(unit); - if (!path) - return log_oom(); - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - 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 = bus_message_map_all_properties(reply, property_map, &info); - if (r < 0) - return log_error_errno(r, "Failed to map properties: %s", bus_error_message(&error, r)); - - return !streq_ptr(info.load_state, "not-found") || !streq_ptr(info.active_state, "inactive"); -} - -static int enable_unit(int argc, char *argv[], void *userdata) { - _cleanup_strv_free_ char **names = NULL; - const char *verb = argv[0]; - UnitFileChange *changes = NULL; - 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 (streq(verb, "disable")) { - r = normalize_names(names, true); - if (r < 0) - return r; - } - - if (install_client_side()) { - UnitFileFlags flags; - - flags = args_to_flags(); - if (streq(verb, "enable")) { - r = unit_file_enable(arg_scope, flags, arg_root, names, &changes, &n_changes); - carries_install_info = r; - } else if (streq(verb, "disable")) - r = unit_file_disable(arg_scope, flags, arg_root, names, &changes, &n_changes); - else if (streq(verb, "reenable")) { - r = unit_file_reenable(arg_scope, flags, arg_root, names, &changes, &n_changes); - carries_install_info = r; - } else if (streq(verb, "link")) - r = unit_file_link(arg_scope, flags, arg_root, names, &changes, &n_changes); - else if (streq(verb, "preset")) { - r = unit_file_preset(arg_scope, flags, arg_root, names, arg_preset_mode, &changes, &n_changes); - } else if (streq(verb, "mask")) - r = unit_file_mask(arg_scope, flags, arg_root, names, &changes, &n_changes); - else if (streq(verb, "unmask")) - r = unit_file_unmask(arg_scope, flags, arg_root, names, &changes, &n_changes); - else if (streq(verb, "revert")) - r = unit_file_revert(arg_scope, arg_root, names, &changes, &n_changes); - else - assert_not_reached("Unknown verb"); - - unit_file_dump_changes(r, verb, changes, n_changes, arg_quiet); - if (r < 0) - goto finish; - r = 0; - } else { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - bool expect_carries_install_info = false; - bool send_runtime = true, send_force = true, send_preset_mode = false; - const char *method; - sd_bus *bus; - - if (STR_IN_SET(verb, "mask", "unmask")) { - r = unit_exists(*names); - if (r < 0) - return r; - if (r == 0) - log_notice("Unit %s does not exist, proceeding anyway.", *names); - } - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - 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, args_to_flags(), arg_root, names, target, dep, &changes, &n_changes); - unit_file_dump_changes(r, "add dependency on", changes, n_changes, arg_quiet); - - if (r > 0) - r = 0; - } else { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - sd_bus *bus; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - 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, args_to_flags(), arg_root, arg_preset_mode, &changes, &n_changes); - unit_file_dump_changes(r, "preset", changes, n_changes, arg_quiet); - - if (r > 0) - r = 0; - } else { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - sd_bus *bus; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - polkit_agent_open_if_enabled(); - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "PresetAllUnitFiles", - &error, - &reply, - "sbb", - unit_file_preset_mode_to_string(arg_preset_mode), - arg_runtime, - arg_force); - if (r < 0) - return log_error_errno(r, "Failed to preset all units: %s", bus_error_message(&error, r)); - - r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes); - if (r < 0) - goto finish; - - if (arg_no_reload) { - r = 0; - goto finish; - } - - r = daemon_reload(argc, argv, userdata); - } - -finish: - unit_file_changes_free(changes, n_changes); - - return r; -} - -static int show_installation_targets_client_side(const char *name) { - UnitFileChange *changes = NULL; - unsigned n_changes = 0, i; - UnitFileFlags flags; - char **p; - int r; - - p = STRV_MAKE(name); - flags = UNIT_FILE_DRY_RUN | - (arg_runtime ? UNIT_FILE_RUNTIME : 0); - - r = unit_file_disable(UNIT_FILE_SYSTEM, flags, NULL, p, &changes, &n_changes); - if (r < 0) - return log_error_errno(r, "Failed to get file links for %s: %m", name); - - for (i = 0; i < n_changes; i++) - if (changes[i].type == UNIT_FILE_UNLINK) - printf(" %s\n", changes[i].path); - - return 0; -} - -static int show_installation_targets(sd_bus *bus, const char *name) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - const char *link; - int r; - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "GetUnitFileLinks", - &error, - &reply, - "sb", name, arg_runtime); - if (r < 0) - return log_error_errno(r, "Failed to get unit file links for %s: %s", name, bus_error_message(&error, r)); - - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(reply, "s", &link)) > 0) - printf(" %s\n", link); - - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_exit_container(reply); - if (r < 0) - return bus_log_parse_error(r); - - return 0; -} - -static int unit_is_enabled(int argc, char *argv[], void *userdata) { - - _cleanup_strv_free_ char **names = NULL; - bool enabled; - char **name; - int r; - - r = mangle_names(strv_skip(argv, 1), &names); - if (r < 0) - return r; - - r = enable_sysv_units(argv[0], names); - if (r < 0) - return r; - - enabled = r > 0; - - if (install_client_side()) { - STRV_FOREACH(name, names) { - UnitFileState state; - - r = unit_file_get_state(arg_scope, arg_root, *name, &state); - if (r < 0) - return log_error_errno(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)); - if (arg_full) { - r = show_installation_targets_client_side(*name); - if (r < 0) - return r; - } - } - } - - r = 0; - } else { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - sd_bus *bus; - - r = acquire_bus(BUS_MANAGER, &bus); - if (r < 0) - return r; - - STRV_FOREACH(name, names) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - const char *s; - - r = sd_bus_call_method( - bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "GetUnitFileState", - &error, - &reply, - "s", *name); - if (r < 0) - return log_error_errno(r, "Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r)); - - r = sd_bus_message_read(reply, "s", &s); - if (r < 0) - return bus_log_parse_error(r); - - if (STR_IN_SET(s, "enabled", "enabled-runtime", "static", "indirect", "generated")) - enabled = true; - - if (!arg_quiet) { - puts(s); - if (arg_full) { - r = show_installation_targets(bus, *name); - if (r < 0) - return r; - } - } - } - } - - return enabled ? EXIT_SUCCESS : EXIT_FAILURE; -} - -static int 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 create temporary file for \"%s\": %m", new_path); - - *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_new( - const LookupPaths *paths, - const char *unit_name, - const char *suffix, - 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, suffix); - 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 -EKEYREJECTED; - } - } - - r = create_edit_temp_file(tmp_new_path, fragment_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 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 (!arg_force) { - if (r == 0) { - log_error("Run 'systemctl edit --force %s' to create a new unit.", *name); - return -ENOENT; - } else if (!path) { - // FIXME: support units with path==NULL (no FragmentPath) - log_error("No fragment exists for %s.", *name); - return -ENOENT; - } - } - - if (path) { - if (arg_full) - r = unit_file_create_copy(&lp, *name, path, &new_path, &tmp_path); - else - r = unit_file_create_new(&lp, *name, ".d/override.conf", &new_path, &tmp_path); - } else - r = unit_file_create_new(&lp, *name, NULL, &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 properties/all units currently in memory,\n" - " including dead/empty ones. To list all units installed on\n" - " the system, use the 'list-unit-files' command instead.\n" - " -l --full Don't ellipsize unit names on output\n" - " -r --recursive Show unit list of host and local containers\n" - " --reverse Show reverse dependencies with 'list-dependencies'\n" - " --job-mode=MODE Specify how to deal with already queued jobs, when\n" - " queueing a new job\n" - " --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" - " --wait For (re)start, wait until service stopped again\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-precise,\n" - " short-iso, short-full, short-monotonic, short-unix,\n" - " verbose, export, json, json-pretty, json-sse, cat)\n" - " --firmware-setup Tell the firmware to show the setup menu on next boot\n" - " --plain Print unit dependencies as a list instead of a tree\n\n" - "Unit Commands:\n" - " list-units [PATTERN...] List units currently in memory\n" - " list-sockets [PATTERN...] List socket units currently in memory, ordered\n" - " by address\n" - " list-timers [PATTERN...] List timer units currently in memory, ordered\n" - " 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...|PATH...] 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, - ARG_WAIT, - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, ARG_VERSION }, - { "type", required_argument, NULL, 't' }, - { "property", required_argument, NULL, 'p' }, - { "all", no_argument, NULL, 'a' }, - { "reverse", no_argument, NULL, ARG_REVERSE }, - { "after", no_argument, NULL, ARG_AFTER }, - { "before", no_argument, NULL, ARG_BEFORE }, - { "show-types", no_argument, NULL, ARG_SHOW_TYPES }, - { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */ - { "full", no_argument, NULL, 'l' }, - { "job-mode", required_argument, NULL, ARG_JOB_MODE }, - { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */ - { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */ - { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */ - { "ignore-inhibitors", no_argument, NULL, 'i' }, - { "value", no_argument, NULL, ARG_VALUE }, - { "user", no_argument, NULL, ARG_USER }, - { "system", no_argument, NULL, ARG_SYSTEM }, - { "global", no_argument, NULL, ARG_GLOBAL }, - { "wait", no_argument, NULL, ARG_WAIT }, - { "no-block", no_argument, NULL, ARG_NO_BLOCK }, - { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, - { "no-pager", no_argument, NULL, ARG_NO_PAGER }, - { "no-wall", no_argument, NULL, ARG_NO_WALL }, - { "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_WAIT: - arg_wait = true; - break; - - case ARG_NO_BLOCK: - arg_no_block = true; - break; - - case ARG_NO_LEGEND: - arg_no_legend = true; - break; - - case ARG_NO_PAGER: - arg_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; - } - - if (arg_wait && arg_no_block) { - log_error("--wait may not be combined with --no-block."); - 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, trivial_method }, - { "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_system_special }, - { "poweroff", VERB_ANY, 1, VERB_NOCHROOT, start_system_special }, - { "reboot", VERB_ANY, 2, VERB_NOCHROOT, start_system_special }, - { "kexec", VERB_ANY, 1, VERB_NOCHROOT, start_system_special }, - { "suspend", VERB_ANY, 1, VERB_NOCHROOT, start_system_special }, - { "hibernate", VERB_ANY, 1, VERB_NOCHROOT, start_system_special }, - { "hybrid-sleep", VERB_ANY, 1, VERB_NOCHROOT, start_system_special }, - { "default", VERB_ANY, 1, VERB_NOCHROOT, start_special }, - { "rescue", VERB_ANY, 1, VERB_NOCHROOT, start_system_special }, - { "emergency", VERB_ANY, 1, VERB_NOCHROOT, start_system_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(IN_SET(arg_action, ACTION_RELOAD, ACTION_REEXEC)); - - if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) - return log_error_errno(errno, "kill() failed: %m"); - - return 0; -} - -static int start_with_fallback(void) { - - /* First, try systemd via D-Bus. */ - if (start_unit(0, NULL, NULL) >= 0) - return 0; - - /* 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; - - 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); - - (void) logind_set_wall_message(); - - r = sd_bus_call_method( - bus, - "org.freedesktop.login1", - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - "ScheduleShutdown", - &error, - NULL, - "st", - action, - arg_when); - if (r < 0) - return log_warning_errno(r, "Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: %s", bus_error_message(&error, r)); - - 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(); - sigbus_install(); - - /* Explicitly not on_tty() to avoid setting cached value. - * This becomes relevant for piping output which might be - * ellipsized. */ - original_stdout_is_tty = isatty(STDOUT_FILENO); - - r = parse_argv(argc, argv); - if (r <= 0) - goto finish; - - if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) { - 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: - release_busses(); - - 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); - - /* 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; -} |