1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/reboot.h>
27 #include <linux/reboot.h>
28 #include <sys/syscall.h>
33 #include "load-fragment.h"
34 #include "load-dropin.h"
37 #include "unit-name.h"
38 #include "unit-printf.h"
39 #include "dbus-service.h"
41 #include "exit-status.h"
43 #include "path-util.h"
48 #include "bus-error.h"
51 #ifdef HAVE_SYSV_COMPAT
53 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
55 typedef enum RunlevelType {
63 const RunlevelType type;
65 /* Standard SysV runlevels for start-up */
66 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
67 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
68 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
69 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
70 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
72 /* Standard SysV runlevels for shutdown */
73 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
74 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
76 /* Note that the order here matters, as we read the
77 directories in this order, and we want to make sure that
78 sysv_start_priority is known when we first load the
79 unit. And that value we only know from S links. Hence
80 UP must be read before DOWN */
83 #define RUNLEVELS_UP "12345"
86 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
87 [SERVICE_DEAD] = UNIT_INACTIVE,
88 [SERVICE_START_PRE] = UNIT_ACTIVATING,
89 [SERVICE_START] = UNIT_ACTIVATING,
90 [SERVICE_START_POST] = UNIT_ACTIVATING,
91 [SERVICE_RUNNING] = UNIT_ACTIVE,
92 [SERVICE_EXITED] = UNIT_ACTIVE,
93 [SERVICE_RELOAD] = UNIT_RELOADING,
94 [SERVICE_STOP] = UNIT_DEACTIVATING,
95 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
96 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
97 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
98 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_FAILED] = UNIT_FAILED,
101 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
104 /* For Type=idle we never want to delay any other jobs, hence we
105 * consider idle jobs active as soon as we start working on them */
106 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
107 [SERVICE_DEAD] = UNIT_INACTIVE,
108 [SERVICE_START_PRE] = UNIT_ACTIVE,
109 [SERVICE_START] = UNIT_ACTIVE,
110 [SERVICE_START_POST] = UNIT_ACTIVE,
111 [SERVICE_RUNNING] = UNIT_ACTIVE,
112 [SERVICE_EXITED] = UNIT_ACTIVE,
113 [SERVICE_RELOAD] = UNIT_RELOADING,
114 [SERVICE_STOP] = UNIT_DEACTIVATING,
115 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
116 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
117 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
118 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
119 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
120 [SERVICE_FAILED] = UNIT_FAILED,
121 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
124 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata);
125 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata);
126 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata);
128 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
130 static void service_init(Unit *u) {
131 Service *s = SERVICE(u);
134 assert(u->load_state == UNIT_STUB);
136 s->timeout_start_usec = u->manager->default_timeout_start_usec;
137 s->timeout_stop_usec = u->manager->default_timeout_stop_usec;
138 s->restart_usec = u->manager->default_restart_usec;
139 s->type = _SERVICE_TYPE_INVALID;
141 #ifdef HAVE_SYSV_COMPAT
142 s->sysv_start_priority = -1;
143 s->sysv_start_priority_from_rcnd = -1;
146 s->guess_main_pid = true;
148 RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst);
150 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
153 static void service_unwatch_control_pid(Service *s) {
156 if (s->control_pid <= 0)
159 unit_unwatch_pid(UNIT(s), s->control_pid);
163 static void service_unwatch_main_pid(Service *s) {
166 if (s->main_pid <= 0)
169 unit_unwatch_pid(UNIT(s), s->main_pid);
173 static void service_unwatch_pid_file(Service *s) {
174 if (!s->pid_file_pathspec)
177 log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
178 UNIT(s)->id, s->pid_file_pathspec->path);
179 path_spec_unwatch(s->pid_file_pathspec);
180 path_spec_done(s->pid_file_pathspec);
181 free(s->pid_file_pathspec);
182 s->pid_file_pathspec = NULL;
185 static int service_set_main_pid(Service *s, pid_t pid) {
196 if (s->main_pid == pid && s->main_pid_known)
199 if (s->main_pid != pid) {
200 service_unwatch_main_pid(s);
201 exec_status_start(&s->main_exec_status, pid);
205 s->main_pid_known = true;
207 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
208 log_warning_unit(UNIT(s)->id,
209 "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.",
212 s->main_pid_alien = true;
214 s->main_pid_alien = false;
219 static void service_close_socket_fd(Service *s) {
222 if (s->socket_fd < 0)
225 s->socket_fd = safe_close(s->socket_fd);
228 static void service_connection_unref(Service *s) {
231 if (!UNIT_ISSET(s->accept_socket))
234 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
235 unit_ref_unset(&s->accept_socket);
238 static void service_stop_watchdog(Service *s) {
241 s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source);
242 s->watchdog_timestamp = DUAL_TIMESTAMP_NULL;
245 static void service_start_watchdog(Service *s) {
250 if (s->watchdog_usec <= 0)
253 if (s->watchdog_event_source) {
254 r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec);
256 log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r));
260 r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT);
262 r = sd_event_add_time(
263 UNIT(s)->manager->event,
264 &s->watchdog_event_source,
266 s->watchdog_timestamp.monotonic + s->watchdog_usec, 0,
267 service_dispatch_watchdog, s);
269 log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r));
273 /* Let's process everything else which might be a sign
274 * of living before we consider a service died. */
275 r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE);
279 log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
282 static void service_reset_watchdog(Service *s) {
285 dual_timestamp_get(&s->watchdog_timestamp);
286 service_start_watchdog(s);
289 static void service_done(Unit *u) {
290 Service *s = SERVICE(u);
297 #ifdef HAVE_SYSV_COMPAT
298 free(s->sysv_runlevels);
299 s->sysv_runlevels = NULL;
302 free(s->status_text);
303 s->status_text = NULL;
306 s->reboot_arg = NULL;
308 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
309 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
310 s->control_command = NULL;
311 s->main_command = NULL;
313 set_free(s->restart_ignore_status.code);
314 s->restart_ignore_status.code = NULL;
315 set_free(s->restart_ignore_status.signal);
316 s->restart_ignore_status.signal = NULL;
318 set_free(s->success_status.code);
319 s->success_status.code = NULL;
320 set_free(s->success_status.signal);
321 s->success_status.signal = NULL;
323 /* This will leak a process, but at least no memory or any of
325 service_unwatch_main_pid(s);
326 service_unwatch_control_pid(s);
327 service_unwatch_pid_file(s);
330 unit_unwatch_bus_name(u, s->bus_name);
335 service_close_socket_fd(s);
336 service_connection_unref(s);
338 unit_ref_unset(&s->accept_socket);
340 service_stop_watchdog(s);
342 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
345 static int service_arm_timer(Service *s, usec_t usec) {
350 if (s->timer_event_source) {
351 r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec);
355 return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
358 return sd_event_add_time(
359 UNIT(s)->manager->event,
360 &s->timer_event_source,
362 now(CLOCK_MONOTONIC) + usec, 0,
363 service_dispatch_timer, s);
366 #ifdef HAVE_SYSV_COMPAT
367 static char *sysv_translate_name(const char *name) {
370 r = new(char, strlen(name) + strlen(".service") + 1);
374 if (endswith(name, ".sh"))
375 /* Drop .sh suffix */
376 strcpy(stpcpy(r, name) - 3, ".service");
378 /* Normal init script name */
379 strcpy(stpcpy(r, name), ".service");
384 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
386 /* We silently ignore the $ prefix here. According to the LSB
387 * spec it simply indicates whether something is a
388 * standardized name or a distribution-specific one. Since we
389 * just follow what already exists and do not introduce new
390 * uses or names we don't care who introduced a new name. */
392 static const char * const table[] = {
393 /* LSB defined facilities */
395 "network", SPECIAL_NETWORK_TARGET,
396 "named", SPECIAL_NSS_LOOKUP_TARGET,
397 "portmap", SPECIAL_RPCBIND_TARGET,
398 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
400 "time", SPECIAL_TIME_SYNC_TARGET,
410 n = *name == '$' ? name + 1 : name;
412 for (i = 0; i < ELEMENTSOF(table); i += 2) {
414 if (!streq(table[i], n))
420 r = strdup(table[i+1]);
427 /* If we don't know this name, fallback heuristics to figure
428 * out whether something is a target or a service alias. */
431 if (!unit_prefix_is_valid(n))
434 /* Facilities starting with $ are most likely targets */
435 r = unit_name_build(n, NULL, ".target");
436 } else if (filename && streq(name, filename))
437 /* Names equaling the file name of the services are redundant */
440 /* Everything else we assume to be normal service names */
441 r = sysv_translate_name(n);
452 static int sysv_fix_order(Service *s) {
458 if (s->sysv_start_priority < 0)
461 /* For each pair of services where at least one lacks a LSB
462 * header, we use the start priority value to order things. */
464 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
467 bool special_s, special_t;
474 if (UNIT(t)->load_state != UNIT_LOADED)
477 if (t->sysv_start_priority < 0)
480 /* If both units have modern headers we don't care
481 * about the priorities */
482 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
483 (UNIT(t)->fragment_path || t->sysv_has_lsb))
486 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
487 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
489 if (special_t && !special_s)
491 else if (special_s && !special_t)
493 else if (t->sysv_start_priority < s->sysv_start_priority)
495 else if (t->sysv_start_priority > s->sysv_start_priority)
500 /* FIXME: Maybe we should compare the name here lexicographically? */
502 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
509 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
512 if (!(c = new0(ExecCommand, 1)))
515 if (!(c->path = strdup(path))) {
520 if (!(c->argv = strv_new(path, arg1, NULL))) {
529 static int sysv_exec_commands(Service *s, const bool supports_reload) {
534 assert(UNIT(s)->source_path);
536 c = exec_command_new(UNIT(s)->source_path, "start");
539 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
541 c = exec_command_new(UNIT(s)->source_path, "stop");
544 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
546 if (supports_reload) {
547 c = exec_command_new(UNIT(s)->source_path, "reload");
550 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
556 static bool usage_contains_reload(const char *line) {
557 return (strcasestr(line, "{reload|") ||
558 strcasestr(line, "{reload}") ||
559 strcasestr(line, "{reload\"") ||
560 strcasestr(line, "|reload|") ||
561 strcasestr(line, "|reload}") ||
562 strcasestr(line, "|reload\""));
565 static int service_load_sysv_path(Service *s, const char *path) {
577 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
579 bool supports_reload = false;
586 f = fopen(path, "re");
588 r = errno == ENOENT ? 0 : -errno;
592 if (fstat(fileno(f), &st) < 0) {
597 free(u->source_path);
598 u->source_path = strdup(path);
599 if (!u->source_path) {
603 u->source_mtime = timespec_load(&st.st_mtim);
605 if (null_or_empty(&st)) {
606 u->load_state = UNIT_MASKED;
614 char l[LINE_MAX], *t;
616 if (!fgets(l, sizeof(l), f)) {
621 log_error_unit(u->id,
622 "Failed to read configuration file '%s': %s",
631 /* Try to figure out whether this init script supports
632 * the reload operation. This heuristic looks for
633 * "Usage" lines which include the reload option. */
634 if ( state == USAGE_CONTINUATION ||
635 (state == NORMAL && strcasestr(t, "usage"))) {
636 if (usage_contains_reload(t)) {
637 supports_reload = true;
639 } else if (t[strlen(t)-1] == '\\')
640 state = USAGE_CONTINUATION;
648 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
650 s->sysv_has_lsb = true;
654 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
660 t += strspn(t, WHITESPACE);
662 if (state == NORMAL) {
664 /* Try to parse Red Hat style chkconfig headers */
666 if (startswith_no_case(t, "chkconfig:")) {
668 char runlevels[16], *k;
672 if (sscanf(t+10, "%15s %i %*i", runlevels, &start_priority) != 2) {
673 log_warning_unit(u->id, "[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
677 /* A start priority gathered from the
678 * symlink farms is preferred over the
679 * data from the LSB header. */
680 if (start_priority < 0 || start_priority > 99)
681 log_warning_unit(u->id, "[%s:%u] Start priority out of range. Ignoring.", path, line);
683 log_debug_unit(u->id, "[%s:%u] Ignoring start priority set in the chkconfig file.", path, line);
685 char_array_0(runlevels);
686 k = delete_chars(runlevels, WHITESPACE "-");
696 free(s->sysv_runlevels);
697 s->sysv_runlevels = d;
700 } else if (startswith_no_case(t, "description:")) {
702 size_t k = strlen(t);
706 if (t[k-1] == '\\') {
711 if ((j = strstrip(t+12)) && *j) {
712 if (!(d = strdup(j))) {
719 free(chkconfig_description);
720 chkconfig_description = d;
722 } else if (startswith_no_case(t, "pidfile:")) {
729 if (!path_is_absolute(fn)) {
730 log_warning_unit(u->id,
731 "[%s:%u] PID file not absolute. Ignoring.",
736 if (!(fn = strdup(fn))) {
745 } else if (state == DESCRIPTION) {
747 /* Try to parse Red Hat style description
750 size_t k = strlen(t);
758 if ((j = strstrip(t)) && *j) {
761 if (chkconfig_description)
762 d = strjoin(chkconfig_description, " ", j, NULL);
771 free(chkconfig_description);
772 chkconfig_description = d;
775 } else if (state == LSB || state == LSB_DESCRIPTION) {
777 if (startswith_no_case(t, "Provides:")) {
783 FOREACH_WORD_QUOTED(w, z, t+9, i) {
786 if (!(n = strndup(w, z))) {
791 r = sysv_translate_facility(n, basename(path), &m);
800 if (unit_name_to_type(m) == UNIT_SERVICE)
801 r = unit_merge_by_name(u, m);
808 * indication that the
810 * now available. This
813 * targets do NOT pull
816 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
819 log_error_unit(u->id,
820 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
821 path, line, m, strerror(-r));
826 } else if (startswith_no_case(t, "Required-Start:") ||
827 startswith_no_case(t, "Should-Start:") ||
828 startswith_no_case(t, "X-Start-Before:") ||
829 startswith_no_case(t, "X-Start-After:")) {
835 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
838 if (!(n = strndup(w, z))) {
843 r = sysv_translate_facility(n, basename(path), &m);
845 log_error_unit(u->id,
846 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
847 path, line, n, strerror(-r));
857 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
860 log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
861 path, line, m, strerror(-r));
865 } else if (startswith_no_case(t, "Default-Start:")) {
870 k = delete_chars(t+14, WHITESPACE "-");
873 if (!(d = strdup(k))) {
878 free(s->sysv_runlevels);
879 s->sysv_runlevels = d;
882 } else if (startswith_no_case(t, "Description:")) {
885 state = LSB_DESCRIPTION;
887 if ((j = strstrip(t+12)) && *j) {
888 if (!(d = strdup(j))) {
895 free(long_description);
896 long_description = d;
898 } else if (startswith_no_case(t, "Short-Description:")) {
903 if ((j = strstrip(t+18)) && *j) {
904 if (!(d = strdup(j))) {
911 free(short_description);
912 short_description = d;
914 } else if (state == LSB_DESCRIPTION) {
916 if (startswith(l, "#\t") || startswith(l, "# ")) {
919 if ((j = strstrip(t)) && *j) {
922 if (long_description)
923 d = strjoin(long_description, " ", t, NULL);
932 free(long_description);
933 long_description = d;
942 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
945 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
946 /* If there a runlevels configured for this service
947 * but none of the standard ones, then we assume this
948 * is some special kind of service (which might be
949 * needed for early boot) and don't create any links
952 UNIT(s)->default_dependencies = false;
954 /* Don't timeout special services during boot (like fsck) */
955 s->timeout_start_usec = 0;
956 s->timeout_stop_usec = 0;
958 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
959 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
962 /* Special setting for all SysV services */
963 s->type = SERVICE_FORKING;
964 s->remain_after_exit = !s->pid_file;
965 s->guess_main_pid = false;
966 s->restart = SERVICE_RESTART_NO;
967 s->exec_context.ignore_sigpipe = false;
968 s->kill_context.kill_mode = KILL_PROCESS;
970 /* We use the long description only if
971 * no short description is set. */
973 if (short_description)
974 description = short_description;
975 else if (chkconfig_description)
976 description = chkconfig_description;
977 else if (long_description)
978 description = long_description;
985 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
993 /* Initialize the start priority from what has been set in the
994 * /etc/rcN.d/ hierarchies if we load the unit file as SysV
996 if (s->sysv_start_priority_from_rcnd >= 0)
997 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
999 u->load_state = UNIT_LOADED;
1007 free(short_description);
1008 free(long_description);
1009 free(chkconfig_description);
1014 static int service_load_sysv_name(Service *s, const char *name) {
1020 /* For SysV services we strip the *.sh suffixes. */
1021 if (endswith(name, ".sh.service"))
1024 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
1028 path = strjoin(*p, "/", name, NULL);
1032 assert(endswith(path, ".service"));
1033 path[strlen(path)-8] = 0;
1035 r = service_load_sysv_path(s, path);
1037 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1038 /* Try *.sh source'able init scripts */
1039 strcat(path, ".sh");
1040 r = service_load_sysv_path(s, path);
1047 if (UNIT(s)->load_state != UNIT_STUB)
1054 static int service_load_sysv(Service *s) {
1061 /* Load service data from SysV init scripts, preferably with
1062 * LSB headers ... */
1064 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1067 if ((t = UNIT(s)->id))
1068 if ((r = service_load_sysv_name(s, t)) < 0)
1071 if (UNIT(s)->load_state == UNIT_STUB)
1072 SET_FOREACH(t, UNIT(s)->names, i) {
1073 if (t == UNIT(s)->id)
1076 if ((r = service_load_sysv_name(s, t)) < 0)
1079 if (UNIT(s)->load_state != UNIT_STUB)
1087 static int service_verify(Service *s) {
1090 if (UNIT(s)->load_state != UNIT_LOADED)
1093 if (!s->exec_command[SERVICE_EXEC_START]) {
1094 log_error_unit(UNIT(s)->id, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1098 if (s->type != SERVICE_ONESHOT &&
1099 s->exec_command[SERVICE_EXEC_START]->command_next) {
1100 log_error_unit(UNIT(s)->id, "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1104 if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) {
1105 log_error_unit(UNIT(s)->id, "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1109 if (s->type == SERVICE_DBUS && !s->bus_name) {
1110 log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1114 if (s->bus_name && s->type != SERVICE_DBUS)
1115 log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1117 if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) {
1118 log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id);
1125 static int service_add_default_dependencies(Service *s) {
1130 /* Add a number of automatic dependencies useful for the
1131 * majority of services. */
1133 /* First, pull in base system */
1134 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1135 SPECIAL_BASIC_TARGET, NULL, true);
1139 /* Second, activate normal shutdown */
1140 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1141 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1145 static void service_fix_output(Service *s) {
1148 /* If nothing has been explicitly configured, patch default
1149 * output in. If input is socket/tty we avoid this however,
1150 * since in that case we want output to default to the same
1151 * place as we read input from. */
1153 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1154 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1155 s->exec_context.std_input == EXEC_INPUT_NULL)
1156 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1158 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1159 s->exec_context.std_input == EXEC_INPUT_NULL)
1160 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1163 static int service_load(Unit *u) {
1165 Service *s = SERVICE(u);
1169 /* Load a .service file */
1170 r = unit_load_fragment(u);
1174 #ifdef HAVE_SYSV_COMPAT
1175 /* Load a classic init script as a fallback, if we couldn't find anything */
1176 if (u->load_state == UNIT_STUB) {
1177 r = service_load_sysv(s);
1183 /* Still nothing found? Then let's give up */
1184 if (u->load_state == UNIT_STUB)
1187 /* This is a new unit? Then let's add in some extras */
1188 if (u->load_state == UNIT_LOADED) {
1190 /* We were able to load something, then let's add in
1191 * the dropin directories. */
1192 r = unit_load_dropin(u);
1196 if (s->type == _SERVICE_TYPE_INVALID)
1197 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1199 /* Oneshot services have disabled start timeout by default */
1200 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1201 s->timeout_start_usec = 0;
1203 service_fix_output(s);
1205 r = unit_patch_contexts(u);
1209 r = unit_add_exec_dependencies(u, &s->exec_context);
1213 r = unit_add_default_slice(u, &s->cgroup_context);
1217 #ifdef HAVE_SYSV_COMPAT
1218 r = sysv_fix_order(s);
1223 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1224 s->notify_access = NOTIFY_MAIN;
1226 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1227 s->notify_access = NOTIFY_MAIN;
1230 r = unit_watch_bus_name(u, s->bus_name);
1235 if (u->default_dependencies) {
1236 r = service_add_default_dependencies(s);
1242 return service_verify(s);
1245 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1247 ServiceExecCommand c;
1248 Service *s = SERVICE(u);
1249 const char *prefix2;
1250 _cleanup_free_ char *p2 = NULL;
1254 p2 = strappend(prefix, "\t");
1255 prefix2 = p2 ? p2 : prefix;
1258 "%sService State: %s\n"
1260 "%sReload Result: %s\n"
1261 "%sPermissionsStartOnly: %s\n"
1262 "%sRootDirectoryStartOnly: %s\n"
1263 "%sRemainAfterExit: %s\n"
1264 "%sGuessMainPID: %s\n"
1267 "%sNotifyAccess: %s\n",
1268 prefix, service_state_to_string(s->state),
1269 prefix, service_result_to_string(s->result),
1270 prefix, service_result_to_string(s->reload_result),
1271 prefix, yes_no(s->permissions_start_only),
1272 prefix, yes_no(s->root_directory_start_only),
1273 prefix, yes_no(s->remain_after_exit),
1274 prefix, yes_no(s->guess_main_pid),
1275 prefix, service_type_to_string(s->type),
1276 prefix, service_restart_to_string(s->restart),
1277 prefix, notify_access_to_string(s->notify_access));
1279 if (s->control_pid > 0)
1281 "%sControl PID: "PID_FMT"\n",
1282 prefix, s->control_pid);
1284 if (s->main_pid > 0)
1286 "%sMain PID: "PID_FMT"\n"
1287 "%sMain PID Known: %s\n"
1288 "%sMain PID Alien: %s\n",
1289 prefix, s->main_pid,
1290 prefix, yes_no(s->main_pid_known),
1291 prefix, yes_no(s->main_pid_alien));
1296 prefix, s->pid_file);
1301 "%sBus Name Good: %s\n",
1302 prefix, s->bus_name,
1303 prefix, yes_no(s->bus_name_good));
1305 kill_context_dump(&s->kill_context, f, prefix);
1306 exec_context_dump(&s->exec_context, f, prefix);
1308 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1310 if (!s->exec_command[c])
1313 fprintf(f, "%s-> %s:\n",
1314 prefix, service_exec_command_to_string(c));
1316 exec_command_dump_list(s->exec_command[c], f, prefix2);
1319 #ifdef HAVE_SYSV_COMPAT
1322 "%sSysV Init Script has LSB Header: %s\n"
1323 "%sSysVEnabled: %s\n",
1324 prefix, yes_no(s->sysv_has_lsb),
1325 prefix, yes_no(s->sysv_enabled));
1327 if (s->sysv_start_priority >= 0)
1329 "%sSysVStartPriority: %i\n",
1330 prefix, s->sysv_start_priority);
1332 if (s->sysv_runlevels)
1333 fprintf(f, "%sSysVRunLevels: %s\n",
1334 prefix, s->sysv_runlevels);
1338 fprintf(f, "%sStatus Text: %s\n",
1339 prefix, s->status_text);
1342 static int service_load_pid_file(Service *s, bool may_warn) {
1343 _cleanup_free_ char *k = NULL;
1352 r = read_one_line_file(s->pid_file, &k);
1355 log_info_unit(UNIT(s)->id,
1356 "PID file %s not readable (yet?) after %s.",
1357 s->pid_file, service_state_to_string(s->state));
1361 r = parse_pid(k, &pid);
1364 log_info_unit(UNIT(s)->id,
1365 "Failed to read PID from file %s: %s",
1366 s->pid_file, strerror(-r));
1370 if (!pid_is_alive(pid)) {
1372 log_info_unit(UNIT(s)->id, "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file);
1377 if (s->main_pid_known) {
1378 if (pid == s->main_pid)
1381 log_debug_unit(UNIT(s)->id,
1382 "Main PID changing: "PID_FMT" -> "PID_FMT,
1384 service_unwatch_main_pid(s);
1385 s->main_pid_known = false;
1387 log_debug_unit(UNIT(s)->id,
1388 "Main PID loaded: "PID_FMT, pid);
1390 r = service_set_main_pid(s, pid);
1394 r = unit_watch_pid(UNIT(s), pid);
1396 /* FIXME: we need to do something here */
1397 log_warning_unit(UNIT(s)->id,
1398 "Failed to watch PID "PID_FMT" from service %s",
1406 static int service_search_main_pid(Service *s) {
1412 /* If we know it anyway, don't ever fallback to unreliable
1414 if (s->main_pid_known)
1417 if (!s->guess_main_pid)
1420 assert(s->main_pid <= 0);
1422 pid = unit_search_main_pid(UNIT(s));
1426 log_debug_unit(UNIT(s)->id,
1427 "Main PID guessed: "PID_FMT, pid);
1428 r = service_set_main_pid(s, pid);
1432 r = unit_watch_pid(UNIT(s), pid);
1434 /* FIXME: we need to do something here */
1435 log_warning_unit(UNIT(s)->id,
1436 "Failed to watch PID "PID_FMT" from service %s",
1441 static void service_set_state(Service *s, ServiceState state) {
1442 ServiceState old_state;
1443 const UnitActiveState *table;
1447 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1449 old_state = s->state;
1452 service_unwatch_pid_file(s);
1455 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1457 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1459 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
1460 SERVICE_AUTO_RESTART))
1461 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1464 SERVICE_START, SERVICE_START_POST,
1465 SERVICE_RUNNING, SERVICE_RELOAD,
1466 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1468 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1469 service_unwatch_main_pid(s);
1470 s->main_command = NULL;
1474 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1476 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1478 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1479 service_unwatch_control_pid(s);
1480 s->control_command = NULL;
1481 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1484 if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART))
1485 unit_unwatch_all_pids(UNIT(s));
1488 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1489 SERVICE_RUNNING, SERVICE_RELOAD,
1490 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
1491 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
1492 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1493 service_close_socket_fd(s);
1494 service_connection_unref(s);
1497 if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1498 service_stop_watchdog(s);
1500 /* For the inactive states unit_notify() will trim the cgroup,
1501 * but for exit we have to do that ourselves... */
1502 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1503 unit_destroy_cgroup(UNIT(s));
1505 /* For remain_after_exit services, let's see if we can "release" the
1506 * hold on the console, since unit_notify() only does that in case of
1507 * change of state */
1508 if (state == SERVICE_EXITED && s->remain_after_exit &&
1509 UNIT(s)->manager->n_on_console > 0) {
1510 ExecContext *ec = unit_get_exec_context(UNIT(s));
1511 if (ec && exec_context_may_touch_console(ec)) {
1512 Manager *m = UNIT(s)->manager;
1515 if (m->n_on_console == 0)
1516 /* unset no_console_output flag, since the console is free */
1517 m->no_console_output = false;
1521 if (old_state != state)
1522 log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1524 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1525 s->reload_result = SERVICE_SUCCESS;
1528 static int service_coldplug(Unit *u) {
1529 Service *s = SERVICE(u);
1533 assert(s->state == SERVICE_DEAD);
1535 if (s->deserialized_state != s->state) {
1537 if (IN_SET(s->deserialized_state,
1538 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1540 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1542 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1546 k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec;
1548 /* For the start/stop timeouts 0 means off */
1550 r = service_arm_timer(s, k);
1556 if (s->deserialized_state == SERVICE_AUTO_RESTART) {
1558 /* The restart timeouts 0 means immediately */
1559 r = service_arm_timer(s, s->restart_usec);
1564 if (pid_is_unwaited(s->main_pid) &&
1565 ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) ||
1566 IN_SET(s->deserialized_state,
1567 SERVICE_START, SERVICE_START_POST,
1568 SERVICE_RUNNING, SERVICE_RELOAD,
1569 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1571 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
1572 r = unit_watch_pid(UNIT(s), s->main_pid);
1577 if (pid_is_unwaited(s->control_pid) &&
1578 IN_SET(s->deserialized_state,
1579 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1581 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1583 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1584 r = unit_watch_pid(UNIT(s), s->control_pid);
1589 if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART))
1590 unit_watch_all_pids(UNIT(s));
1592 if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1593 service_start_watchdog(s);
1595 service_set_state(s, s->deserialized_state);
1601 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1605 unsigned rn_fds = 0;
1612 if (s->socket_fd >= 0)
1615 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1620 if (u->type != UNIT_SOCKET)
1625 r = socket_collect_fds(sock, &cfds, &cn_fds);
1638 t = new(int, rn_fds+cn_fds);
1645 memcpy(t, rfds, rn_fds * sizeof(int));
1646 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1651 rn_fds = rn_fds+cn_fds;
1666 static int service_spawn(
1671 bool apply_permissions,
1673 bool apply_tty_stdin,
1674 bool set_notify_socket,
1681 _cleanup_free_ int *fdsbuf = NULL;
1682 unsigned n_fds = 0, n_env = 0;
1683 _cleanup_strv_free_ char
1684 **argv = NULL, **final_env = NULL, **our_env = NULL;
1691 unit_realize_cgroup(UNIT(s));
1693 r = unit_setup_exec_runtime(UNIT(s));
1698 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1699 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1700 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1702 if (s->socket_fd >= 0) {
1703 fds = &s->socket_fd;
1706 r = service_collect_fds(s, &fdsbuf, &n_fds);
1714 if (timeout && s->timeout_start_usec > 0) {
1715 r = service_arm_timer(s, s->timeout_start_usec);
1719 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1721 r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
1725 our_env = new0(char*, 4);
1731 if (set_notify_socket)
1732 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1737 if (s->main_pid > 0)
1738 if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) {
1743 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1744 if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) {
1749 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1755 if (is_control && UNIT(s)->cgroup_path) {
1756 path = strappenda(UNIT(s)->cgroup_path, "/control");
1757 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1759 path = UNIT(s)->cgroup_path;
1769 UNIT(s)->manager->confirm_spawn,
1770 UNIT(s)->manager->cgroup_supported,
1772 manager_get_runtime_prefix(UNIT(s)->manager),
1775 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1781 r = unit_watch_pid(UNIT(s), pid);
1783 /* FIXME: we need to do something here */
1792 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1797 static int main_pid_good(Service *s) {
1800 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1803 /* If we know the pid file, then lets just check if it is
1805 if (s->main_pid_known) {
1807 /* If it's an alien child let's check if it is still
1809 if (s->main_pid_alien && s->main_pid > 0)
1810 return pid_is_alive(s->main_pid);
1812 /* .. otherwise assume we'll get a SIGCHLD for it,
1813 * which we really should wait for to collect exit
1814 * status and code */
1815 return s->main_pid > 0;
1818 /* We don't know the pid */
1822 _pure_ static int control_pid_good(Service *s) {
1825 return s->control_pid > 0;
1828 static int cgroup_good(Service *s) {
1833 if (!UNIT(s)->cgroup_path)
1836 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1843 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1847 if (f != SERVICE_SUCCESS)
1850 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1852 if (allow_restart &&
1853 !s->forbid_restart &&
1854 (s->restart == SERVICE_RESTART_ALWAYS ||
1855 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1856 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1857 (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) ||
1858 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1859 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1860 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1861 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1862 (s->result != SERVICE_FAILURE_SIGNAL ||
1863 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) {
1865 r = service_arm_timer(s, s->restart_usec);
1869 service_set_state(s, SERVICE_AUTO_RESTART);
1872 s->forbid_restart = false;
1874 /* We want fresh tmpdirs in case service is started again immediately */
1875 exec_runtime_destroy(s->exec_runtime);
1876 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
1878 /* Also, remove the runtime directory in */
1879 exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager));
1881 /* Try to delete the pid file. At this point it will be
1882 * out-of-date, and some software might be confused by it, so
1883 * let's remove it. */
1885 unlink_noerrno(s->pid_file);
1890 log_warning_unit(UNIT(s)->id,
1891 "%s failed to run install restart timer: %s",
1892 UNIT(s)->id, strerror(-r));
1893 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1896 static void service_enter_stop_post(Service *s, ServiceResult f) {
1900 if (f != SERVICE_SUCCESS)
1903 service_unwatch_control_pid(s);
1904 unit_watch_all_pids(UNIT(s));
1906 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1907 if (s->control_command) {
1908 s->control_command_id = SERVICE_EXEC_STOP_POST;
1910 r = service_spawn(s,
1914 !s->permissions_start_only,
1915 !s->root_directory_start_only,
1923 service_set_state(s, SERVICE_STOP_POST);
1925 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1930 log_warning_unit(UNIT(s)->id,
1931 "%s failed to run 'stop-post' task: %s",
1932 UNIT(s)->id, strerror(-r));
1933 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1936 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1941 if (f != SERVICE_SUCCESS)
1944 unit_watch_all_pids(UNIT(s));
1946 r = unit_kill_context(
1949 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
1958 if (s->timeout_stop_usec > 0) {
1959 r = service_arm_timer(s, s->timeout_stop_usec);
1964 service_set_state(s, state);
1965 } else if (state == SERVICE_STOP_SIGTERM)
1966 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS);
1967 else if (state == SERVICE_STOP_SIGKILL)
1968 service_enter_stop_post(s, SERVICE_SUCCESS);
1969 else if (state == SERVICE_FINAL_SIGTERM)
1970 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS);
1972 service_enter_dead(s, SERVICE_SUCCESS, true);
1977 log_warning_unit(UNIT(s)->id,
1978 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
1980 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1981 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
1983 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
1986 static void service_enter_stop(Service *s, ServiceResult f) {
1991 if (f != SERVICE_SUCCESS)
1994 service_unwatch_control_pid(s);
1995 unit_watch_all_pids(UNIT(s));
1997 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
1998 if (s->control_command) {
1999 s->control_command_id = SERVICE_EXEC_STOP;
2001 r = service_spawn(s,
2005 !s->permissions_start_only,
2006 !s->root_directory_start_only,
2014 service_set_state(s, SERVICE_STOP);
2016 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2021 log_warning_unit(UNIT(s)->id,
2022 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2023 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2026 static void service_enter_running(Service *s, ServiceResult f) {
2027 int main_pid_ok, cgroup_ok;
2030 if (f != SERVICE_SUCCESS)
2033 main_pid_ok = main_pid_good(s);
2034 cgroup_ok = cgroup_good(s);
2036 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2037 (s->bus_name_good || s->type != SERVICE_DBUS))
2038 service_set_state(s, SERVICE_RUNNING);
2039 else if (s->remain_after_exit)
2040 service_set_state(s, SERVICE_EXITED);
2042 service_enter_stop(s, SERVICE_SUCCESS);
2045 static void service_enter_start_post(Service *s) {
2049 service_unwatch_control_pid(s);
2050 service_reset_watchdog(s);
2052 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2053 if (s->control_command) {
2054 s->control_command_id = SERVICE_EXEC_START_POST;
2056 r = service_spawn(s,
2060 !s->permissions_start_only,
2061 !s->root_directory_start_only,
2069 service_set_state(s, SERVICE_START_POST);
2071 service_enter_running(s, SERVICE_SUCCESS);
2076 log_warning_unit(UNIT(s)->id,
2077 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2078 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2081 static void service_kill_control_processes(Service *s) {
2084 if (!UNIT(s)->cgroup_path)
2087 p = strappenda(UNIT(s)->cgroup_path, "/control");
2088 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
2091 static void service_enter_start(Service *s) {
2098 assert(s->exec_command[SERVICE_EXEC_START]);
2099 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2101 service_unwatch_control_pid(s);
2102 service_unwatch_main_pid(s);
2104 /* We want to ensure that nobody leaks processes from
2105 * START_PRE here, so let's go on a killing spree, People
2106 * should not spawn long running processes from START_PRE. */
2107 service_kill_control_processes(s);
2109 if (s->type == SERVICE_FORKING) {
2110 s->control_command_id = SERVICE_EXEC_START;
2111 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2113 s->main_command = NULL;
2115 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2116 s->control_command = NULL;
2118 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2121 r = service_spawn(s,
2123 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2124 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2129 s->notify_access != NOTIFY_NONE,
2135 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2136 /* For simple services we immediately start
2137 * the START_POST binaries. */
2139 service_set_main_pid(s, pid);
2140 service_enter_start_post(s);
2142 } else if (s->type == SERVICE_FORKING) {
2144 /* For forking services we wait until the start
2145 * process exited. */
2147 s->control_pid = pid;
2148 service_set_state(s, SERVICE_START);
2150 } else if (s->type == SERVICE_ONESHOT ||
2151 s->type == SERVICE_DBUS ||
2152 s->type == SERVICE_NOTIFY) {
2154 /* For oneshot services we wait until the start
2155 * process exited, too, but it is our main process. */
2157 /* For D-Bus services we know the main pid right away,
2158 * but wait for the bus name to appear on the
2159 * bus. Notify services are similar. */
2161 service_set_main_pid(s, pid);
2162 service_set_state(s, SERVICE_START);
2164 assert_not_reached("Unknown service type");
2169 log_warning_unit(UNIT(s)->id,
2170 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2171 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2174 static void service_enter_start_pre(Service *s) {
2179 service_unwatch_control_pid(s);
2181 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2182 if (s->control_command) {
2183 /* Before we start anything, let's clear up what might
2184 * be left from previous runs. */
2185 service_kill_control_processes(s);
2187 s->control_command_id = SERVICE_EXEC_START_PRE;
2189 r = service_spawn(s,
2193 !s->permissions_start_only,
2194 !s->root_directory_start_only,
2202 service_set_state(s, SERVICE_START_PRE);
2204 service_enter_start(s);
2209 log_warning_unit(UNIT(s)->id,
2210 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2211 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2214 static void service_enter_restart(Service *s) {
2215 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2220 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2221 /* Don't restart things if we are going down anyway */
2222 log_info_unit(UNIT(s)->id,
2223 "Stop job pending for unit, delaying automatic restart.");
2225 r = service_arm_timer(s, s->restart_usec);
2232 /* Any units that are bound to this service must also be
2233 * restarted. We use JOB_RESTART (instead of the more obvious
2234 * JOB_START) here so that those dependency jobs will be added
2236 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2240 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2241 * it will be canceled as part of the service_stop() call that
2242 * is executed as part of JOB_RESTART. */
2244 log_debug_unit(UNIT(s)->id,
2245 "%s scheduled restart job.", UNIT(s)->id);
2249 log_warning_unit(UNIT(s)->id,
2250 "%s failed to schedule restart job: %s",
2251 UNIT(s)->id, bus_error_message(&error, -r));
2252 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2255 static void service_enter_reload(Service *s) {
2260 service_unwatch_control_pid(s);
2262 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2263 if (s->control_command) {
2264 s->control_command_id = SERVICE_EXEC_RELOAD;
2266 r = service_spawn(s,
2270 !s->permissions_start_only,
2271 !s->root_directory_start_only,
2279 service_set_state(s, SERVICE_RELOAD);
2281 service_enter_running(s, SERVICE_SUCCESS);
2286 log_warning_unit(UNIT(s)->id,
2287 "%s failed to run 'reload' task: %s",
2288 UNIT(s)->id, strerror(-r));
2289 s->reload_result = SERVICE_FAILURE_RESOURCES;
2290 service_enter_running(s, SERVICE_SUCCESS);
2293 static void service_run_next_control(Service *s) {
2297 assert(s->control_command);
2298 assert(s->control_command->command_next);
2300 assert(s->control_command_id != SERVICE_EXEC_START);
2302 s->control_command = s->control_command->command_next;
2303 service_unwatch_control_pid(s);
2305 r = service_spawn(s,
2309 !s->permissions_start_only,
2310 !s->root_directory_start_only,
2311 s->control_command_id == SERVICE_EXEC_START_PRE ||
2312 s->control_command_id == SERVICE_EXEC_STOP_POST,
2322 log_warning_unit(UNIT(s)->id,
2323 "%s failed to run next control task: %s",
2324 UNIT(s)->id, strerror(-r));
2326 if (s->state == SERVICE_START_PRE)
2327 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2328 else if (s->state == SERVICE_STOP)
2329 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2330 else if (s->state == SERVICE_STOP_POST)
2331 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2332 else if (s->state == SERVICE_RELOAD) {
2333 s->reload_result = SERVICE_FAILURE_RESOURCES;
2334 service_enter_running(s, SERVICE_SUCCESS);
2336 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2339 static void service_run_next_main(Service *s) {
2344 assert(s->main_command);
2345 assert(s->main_command->command_next);
2346 assert(s->type == SERVICE_ONESHOT);
2348 s->main_command = s->main_command->command_next;
2349 service_unwatch_main_pid(s);
2351 r = service_spawn(s,
2358 s->notify_access != NOTIFY_NONE,
2364 service_set_main_pid(s, pid);
2369 log_warning_unit(UNIT(s)->id,
2370 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2371 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2374 static int service_start_limit_test(Service *s) {
2377 if (ratelimit_test(&s->start_limit))
2380 if (s->start_limit_action == SERVICE_START_LIMIT_REBOOT ||
2381 s->start_limit_action == SERVICE_START_LIMIT_REBOOT_FORCE)
2382 update_reboot_param_file(s->reboot_arg);
2384 switch (s->start_limit_action) {
2386 case SERVICE_START_LIMIT_NONE:
2387 log_warning_unit(UNIT(s)->id,
2388 "%s start request repeated too quickly, refusing to start.",
2392 case SERVICE_START_LIMIT_REBOOT: {
2393 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2396 log_warning_unit(UNIT(s)->id,
2397 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2399 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2400 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2401 true, &error, NULL);
2403 log_error_unit(UNIT(s)->id,
2404 "Failed to reboot: %s.", bus_error_message(&error, r));
2409 case SERVICE_START_LIMIT_REBOOT_FORCE:
2410 log_warning_unit(UNIT(s)->id,
2411 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2412 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2415 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2416 log_warning_unit(UNIT(s)->id,
2417 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2419 if (s->reboot_arg) {
2420 log_info("Rebooting with argument '%s'.", s->reboot_arg);
2421 syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
2422 LINUX_REBOOT_CMD_RESTART2, s->reboot_arg);
2425 log_info("Rebooting.");
2426 reboot(RB_AUTOBOOT);
2430 log_error_unit(UNIT(s)->id,
2431 "start limit action=%i", s->start_limit_action);
2432 assert_not_reached("Unknown StartLimitAction.");
2438 static int service_start(Unit *u) {
2439 Service *s = SERVICE(u);
2444 /* We cannot fulfill this request right now, try again later
2446 if (s->state == SERVICE_STOP ||
2447 s->state == SERVICE_STOP_SIGTERM ||
2448 s->state == SERVICE_STOP_SIGKILL ||
2449 s->state == SERVICE_STOP_POST ||
2450 s->state == SERVICE_FINAL_SIGTERM ||
2451 s->state == SERVICE_FINAL_SIGKILL)
2454 /* Already on it! */
2455 if (s->state == SERVICE_START_PRE ||
2456 s->state == SERVICE_START ||
2457 s->state == SERVICE_START_POST)
2460 /* A service that will be restarted must be stopped first to
2461 * trigger BindsTo and/or OnFailure dependencies. If a user
2462 * does not want to wait for the holdoff time to elapse, the
2463 * service should be manually restarted, not started. We
2464 * simply return EAGAIN here, so that any start jobs stay
2465 * queued, and assume that the auto restart timer will
2466 * eventually trigger the restart. */
2467 if (s->state == SERVICE_AUTO_RESTART)
2470 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2472 /* Make sure we don't enter a busy loop of some kind. */
2473 r = service_start_limit_test(s);
2475 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2479 s->result = SERVICE_SUCCESS;
2480 s->reload_result = SERVICE_SUCCESS;
2481 s->main_pid_known = false;
2482 s->main_pid_alien = false;
2483 s->forbid_restart = false;
2485 service_enter_start_pre(s);
2489 static int service_stop(Unit *u) {
2490 Service *s = SERVICE(u);
2494 /* Don't create restart jobs from here. */
2495 s->forbid_restart = true;
2498 if (s->state == SERVICE_STOP ||
2499 s->state == SERVICE_STOP_SIGTERM ||
2500 s->state == SERVICE_STOP_SIGKILL ||
2501 s->state == SERVICE_STOP_POST ||
2502 s->state == SERVICE_FINAL_SIGTERM ||
2503 s->state == SERVICE_FINAL_SIGKILL)
2506 /* A restart will be scheduled or is in progress. */
2507 if (s->state == SERVICE_AUTO_RESTART) {
2508 service_set_state(s, SERVICE_DEAD);
2512 /* If there's already something running we go directly into
2514 if (s->state == SERVICE_START_PRE ||
2515 s->state == SERVICE_START ||
2516 s->state == SERVICE_START_POST ||
2517 s->state == SERVICE_RELOAD) {
2518 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2522 assert(s->state == SERVICE_RUNNING ||
2523 s->state == SERVICE_EXITED);
2525 service_enter_stop(s, SERVICE_SUCCESS);
2529 static int service_reload(Unit *u) {
2530 Service *s = SERVICE(u);
2534 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2536 service_enter_reload(s);
2540 _pure_ static bool service_can_reload(Unit *u) {
2541 Service *s = SERVICE(u);
2545 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2548 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2549 Service *s = SERVICE(u);
2555 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2556 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2557 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2559 if (s->control_pid > 0)
2560 unit_serialize_item_format(u, f, "control-pid", PID_FMT,
2563 if (s->main_pid_known && s->main_pid > 0)
2564 unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid);
2566 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2569 unit_serialize_item(u, f, "status-text", s->status_text);
2571 /* FIXME: There's a minor uncleanliness here: if there are
2572 * multiple commands attached here, we will start from the
2573 * first one again */
2574 if (s->control_command_id >= 0)
2575 unit_serialize_item(u, f, "control-command",
2576 service_exec_command_to_string(s->control_command_id));
2578 if (s->socket_fd >= 0) {
2581 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2584 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2587 if (s->main_exec_status.pid > 0) {
2588 unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT,
2589 s->main_exec_status.pid);
2590 dual_timestamp_serialize(f, "main-exec-status-start",
2591 &s->main_exec_status.start_timestamp);
2592 dual_timestamp_serialize(f, "main-exec-status-exit",
2593 &s->main_exec_status.exit_timestamp);
2595 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2596 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2597 s->main_exec_status.code);
2598 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2599 s->main_exec_status.status);
2602 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2603 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2605 if (s->forbid_restart)
2606 unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart));
2611 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2612 Service *s = SERVICE(u);
2619 if (streq(key, "state")) {
2622 state = service_state_from_string(value);
2624 log_debug_unit(u->id, "Failed to parse state value %s", value);
2626 s->deserialized_state = state;
2627 } else if (streq(key, "result")) {
2630 f = service_result_from_string(value);
2632 log_debug_unit(u->id, "Failed to parse result value %s", value);
2633 else if (f != SERVICE_SUCCESS)
2636 } else if (streq(key, "reload-result")) {
2639 f = service_result_from_string(value);
2641 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2642 else if (f != SERVICE_SUCCESS)
2643 s->reload_result = f;
2645 } else if (streq(key, "control-pid")) {
2648 if (parse_pid(value, &pid) < 0)
2649 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2651 s->control_pid = pid;
2652 } else if (streq(key, "main-pid")) {
2655 if (parse_pid(value, &pid) < 0)
2656 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2658 service_set_main_pid(s, pid);
2659 unit_watch_pid(UNIT(s), pid);
2661 } else if (streq(key, "main-pid-known")) {
2664 b = parse_boolean(value);
2666 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2668 s->main_pid_known = b;
2669 } else if (streq(key, "status-text")) {
2676 free(s->status_text);
2680 } else if (streq(key, "control-command")) {
2681 ServiceExecCommand id;
2683 id = service_exec_command_from_string(value);
2685 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2687 s->control_command_id = id;
2688 s->control_command = s->exec_command[id];
2690 } else if (streq(key, "socket-fd")) {
2693 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2694 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2697 safe_close(s->socket_fd);
2698 s->socket_fd = fdset_remove(fds, fd);
2700 } else if (streq(key, "main-exec-status-pid")) {
2703 if (parse_pid(value, &pid) < 0)
2704 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2706 s->main_exec_status.pid = pid;
2707 } else if (streq(key, "main-exec-status-code")) {
2710 if (safe_atoi(value, &i) < 0)
2711 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2713 s->main_exec_status.code = i;
2714 } else if (streq(key, "main-exec-status-status")) {
2717 if (safe_atoi(value, &i) < 0)
2718 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2720 s->main_exec_status.status = i;
2721 } else if (streq(key, "main-exec-status-start"))
2722 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2723 else if (streq(key, "main-exec-status-exit"))
2724 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2725 else if (streq(key, "watchdog-timestamp"))
2726 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2727 else if (streq(key, "forbid-restart")) {
2730 b = parse_boolean(value);
2732 log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value);
2734 s->forbid_restart = b;
2736 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2741 _pure_ static UnitActiveState service_active_state(Unit *u) {
2742 const UnitActiveState *table;
2746 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2748 return table[SERVICE(u)->state];
2751 static const char *service_sub_state_to_string(Unit *u) {
2754 return service_state_to_string(SERVICE(u)->state);
2757 static bool service_check_gc(Unit *u) {
2758 Service *s = SERVICE(u);
2762 /* Never clean up services that still have a process around,
2763 * even if the service is formally dead. */
2764 if (cgroup_good(s) > 0 ||
2765 main_pid_good(s) > 0 ||
2766 control_pid_good(s) > 0)
2769 #ifdef HAVE_SYSV_COMPAT
2777 _pure_ static bool service_check_snapshot(Unit *u) {
2778 Service *s = SERVICE(u);
2782 return (s->socket_fd < 0);
2785 static int service_retry_pid_file(Service *s) {
2788 assert(s->pid_file);
2789 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2791 r = service_load_pid_file(s, false);
2795 service_unwatch_pid_file(s);
2797 service_enter_running(s, SERVICE_SUCCESS);
2801 static int service_watch_pid_file(Service *s) {
2804 log_debug_unit(UNIT(s)->id,
2805 "Setting watch for %s's PID file %s",
2806 UNIT(s)->id, s->pid_file_pathspec->path);
2807 r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io);
2811 /* the pidfile might have appeared just before we set the watch */
2812 log_debug_unit(UNIT(s)->id,
2813 "Trying to read %s's PID file %s in case it changed",
2814 UNIT(s)->id, s->pid_file_pathspec->path);
2815 service_retry_pid_file(s);
2819 log_error_unit(UNIT(s)->id,
2820 "Failed to set a watch for %s's PID file %s: %s",
2821 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2822 service_unwatch_pid_file(s);
2826 static int service_demand_pid_file(Service *s) {
2829 assert(s->pid_file);
2830 assert(!s->pid_file_pathspec);
2832 ps = new0(PathSpec, 1);
2837 ps->path = strdup(s->pid_file);
2843 path_kill_slashes(ps->path);
2845 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2846 * keep their PID file open all the time. */
2847 ps->type = PATH_MODIFIED;
2848 ps->inotify_fd = -1;
2850 s->pid_file_pathspec = ps;
2852 return service_watch_pid_file(s);
2855 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) {
2856 PathSpec *p = userdata;
2861 s = SERVICE(p->unit);
2865 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2866 assert(s->pid_file_pathspec);
2867 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2869 log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id);
2871 if (path_spec_fd_event(p, events) < 0)
2874 if (service_retry_pid_file(s) == 0)
2877 if (service_watch_pid_file(s) < 0)
2883 service_unwatch_pid_file(s);
2884 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2888 static void service_notify_cgroup_empty_event(Unit *u) {
2889 Service *s = SERVICE(u);
2893 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
2897 /* Waiting for SIGCHLD is usually more interesting,
2898 * because it includes return codes/signals. Which is
2899 * why we ignore the cgroup events for most cases,
2900 * except when we don't know pid which to expect the
2904 case SERVICE_START_POST:
2905 /* If we were hoping for the daemon to write its PID file,
2906 * we can give up now. */
2907 if (s->pid_file_pathspec) {
2908 log_warning_unit(u->id,
2909 "%s never wrote its PID file. Failing.", UNIT(s)->id);
2910 service_unwatch_pid_file(s);
2911 if (s->state == SERVICE_START)
2912 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2914 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2918 case SERVICE_RUNNING:
2919 /* service_enter_running() will figure out what to do */
2920 service_enter_running(s, SERVICE_SUCCESS);
2923 case SERVICE_STOP_SIGTERM:
2924 case SERVICE_STOP_SIGKILL:
2926 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2927 service_enter_stop_post(s, SERVICE_SUCCESS);
2931 case SERVICE_STOP_POST:
2932 case SERVICE_FINAL_SIGTERM:
2933 case SERVICE_FINAL_SIGKILL:
2934 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2935 service_enter_dead(s, SERVICE_SUCCESS, true);
2944 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2945 Service *s = SERVICE(u);
2951 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2952 is_clean_exit_lsb(code, status, &s->success_status))
2953 f = SERVICE_SUCCESS;
2954 else if (code == CLD_EXITED)
2955 f = SERVICE_FAILURE_EXIT_CODE;
2956 else if (code == CLD_KILLED)
2957 f = SERVICE_FAILURE_SIGNAL;
2958 else if (code == CLD_DUMPED)
2959 f = SERVICE_FAILURE_CORE_DUMP;
2961 assert_not_reached("Unknown code");
2963 if (s->main_pid == pid) {
2964 /* Forking services may occasionally move to a new PID.
2965 * As long as they update the PID file before exiting the old
2966 * PID, they're fine. */
2967 if (service_load_pid_file(s, false) == 0)
2971 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2973 if (s->main_command) {
2974 /* If this is not a forking service than the
2975 * main process got started and hence we copy
2976 * the exit status so that it is recorded both
2977 * as main and as control process exit
2980 s->main_command->exec_status = s->main_exec_status;
2982 if (s->main_command->ignore)
2983 f = SERVICE_SUCCESS;
2984 } else if (s->exec_command[SERVICE_EXEC_START]) {
2986 /* If this is a forked process, then we should
2987 * ignore the return value if this was
2988 * configured for the starter process */
2990 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2991 f = SERVICE_SUCCESS;
2994 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2996 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2997 u->id, sigchld_code_to_string(code), status,
2998 strna(code == CLD_EXITED
2999 ? exit_status_to_string(status, EXIT_STATUS_FULL)
3000 : signal_to_string(status)),
3001 "EXIT_CODE=%s", sigchld_code_to_string(code),
3002 "EXIT_STATUS=%i", status,
3005 if (f != SERVICE_SUCCESS)
3008 if (s->main_command &&
3009 s->main_command->command_next &&
3010 f == SERVICE_SUCCESS) {
3012 /* There is another command to *
3013 * execute, so let's do that. */
3015 log_debug_unit(u->id,
3016 "%s running next main command for state %s",
3017 u->id, service_state_to_string(s->state));
3018 service_run_next_main(s);
3022 /* The service exited, so the service is officially
3024 s->main_command = NULL;
3028 case SERVICE_START_POST:
3029 case SERVICE_RELOAD:
3031 /* Need to wait until the operation is
3036 if (s->type == SERVICE_ONESHOT) {
3037 /* This was our main goal, so let's go on */
3038 if (f == SERVICE_SUCCESS)
3039 service_enter_start_post(s);
3041 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3047 case SERVICE_RUNNING:
3048 service_enter_running(s, f);
3051 case SERVICE_STOP_SIGTERM:
3052 case SERVICE_STOP_SIGKILL:
3054 if (!control_pid_good(s))
3055 service_enter_stop_post(s, f);
3057 /* If there is still a control process, wait for that first */
3060 case SERVICE_STOP_POST:
3061 case SERVICE_FINAL_SIGTERM:
3062 case SERVICE_FINAL_SIGKILL:
3064 if (!control_pid_good(s))
3065 service_enter_dead(s, f, true);
3069 assert_not_reached("Uh, main process died at wrong time.");
3073 } else if (s->control_pid == pid) {
3076 if (s->control_command) {
3077 exec_status_exit(&s->control_command->exec_status,
3078 &s->exec_context, pid, code, status);
3080 if (s->control_command->ignore)
3081 f = SERVICE_SUCCESS;
3084 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3085 "%s: control process exited, code=%s status=%i",
3086 u->id, sigchld_code_to_string(code), status);
3088 if (f != SERVICE_SUCCESS)
3091 /* Immediately get rid of the cgroup, so that the
3092 * kernel doesn't delay the cgroup empty messages for
3093 * the service cgroup any longer than necessary */
3094 service_kill_control_processes(s);
3096 if (s->control_command &&
3097 s->control_command->command_next &&
3098 f == SERVICE_SUCCESS) {
3100 /* There is another command to *
3101 * execute, so let's do that. */
3103 log_debug_unit(u->id,
3104 "%s running next control command for state %s",
3105 u->id, service_state_to_string(s->state));
3106 service_run_next_control(s);
3109 /* No further commands for this step, so let's
3110 * figure out what to do next */
3112 s->control_command = NULL;
3113 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3115 log_debug_unit(u->id,
3116 "%s got final SIGCHLD for state %s",
3117 u->id, service_state_to_string(s->state));
3121 case SERVICE_START_PRE:
3122 if (f == SERVICE_SUCCESS)
3123 service_enter_start(s);
3125 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3129 if (s->type != SERVICE_FORKING)
3130 /* Maybe spurious event due to a reload that changed the type? */
3133 if (f != SERVICE_SUCCESS) {
3134 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3139 bool has_start_post;
3142 /* Let's try to load the pid file here if we can.
3143 * The PID file might actually be created by a START_POST
3144 * script. In that case don't worry if the loading fails. */
3146 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3147 r = service_load_pid_file(s, !has_start_post);
3148 if (!has_start_post && r < 0) {
3149 r = service_demand_pid_file(s);
3150 if (r < 0 || !cgroup_good(s))
3151 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3155 service_search_main_pid(s);
3157 service_enter_start_post(s);
3160 case SERVICE_START_POST:
3161 if (f != SERVICE_SUCCESS) {
3162 service_enter_stop(s, f);
3169 r = service_load_pid_file(s, true);
3171 r = service_demand_pid_file(s);
3172 if (r < 0 || !cgroup_good(s))
3173 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3177 service_search_main_pid(s);
3179 service_enter_running(s, SERVICE_SUCCESS);
3182 case SERVICE_RELOAD:
3183 if (f == SERVICE_SUCCESS) {
3184 service_load_pid_file(s, true);
3185 service_search_main_pid(s);
3188 s->reload_result = f;
3189 service_enter_running(s, SERVICE_SUCCESS);
3193 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3196 case SERVICE_STOP_SIGTERM:
3197 case SERVICE_STOP_SIGKILL:
3198 if (main_pid_good(s) <= 0)
3199 service_enter_stop_post(s, f);
3201 /* If there is still a service
3202 * process around, wait until
3203 * that one quit, too */
3206 case SERVICE_STOP_POST:
3207 case SERVICE_FINAL_SIGTERM:
3208 case SERVICE_FINAL_SIGKILL:
3209 if (main_pid_good(s) <= 0)
3210 service_enter_dead(s, f, true);
3214 assert_not_reached("Uh, control process died at wrong time.");
3219 /* Notify clients about changed exit status */
3220 unit_add_to_dbus_queue(u);
3222 /* We got one SIGCHLD for the service, let's watch all
3223 * processes that are now running of the service, and watch
3224 * that. Among the PIDs we then watch will be children
3225 * reassigned to us, which hopefully allows us to identify
3226 * when all children are gone */
3227 unit_tidy_watch_pids(u, s->main_pid, s->control_pid);
3228 unit_watch_all_pids(u);
3230 /* If the PID set is empty now, then let's finish this off */
3231 if (set_isempty(u->pids))
3232 service_notify_cgroup_empty_event(u);
3235 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
3236 Service *s = SERVICE(userdata);
3239 assert(source == s->timer_event_source);
3243 case SERVICE_START_PRE:
3245 log_warning_unit(UNIT(s)->id,
3246 "%s %s operation timed out. Terminating.",
3248 s->state == SERVICE_START ? "start" : "start-pre");
3249 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3252 case SERVICE_START_POST:
3253 log_warning_unit(UNIT(s)->id,
3254 "%s start-post operation timed out. Stopping.", UNIT(s)->id);
3255 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3258 case SERVICE_RELOAD:
3259 log_warning_unit(UNIT(s)->id,
3260 "%s reload operation timed out. Stopping.", UNIT(s)->id);
3261 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3262 service_enter_running(s, SERVICE_SUCCESS);
3266 log_warning_unit(UNIT(s)->id,
3267 "%s stopping timed out. Terminating.", UNIT(s)->id);
3268 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3271 case SERVICE_STOP_SIGTERM:
3272 if (s->kill_context.send_sigkill) {
3273 log_warning_unit(UNIT(s)->id,
3274 "%s stop-sigterm timed out. Killing.", UNIT(s)->id);
3275 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3277 log_warning_unit(UNIT(s)->id,
3278 "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id);
3279 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3284 case SERVICE_STOP_SIGKILL:
3285 /* Uh, we sent a SIGKILL and it is still not gone?
3286 * Must be something we cannot kill, so let's just be
3287 * weirded out and continue */
3289 log_warning_unit(UNIT(s)->id,
3290 "%s still around after SIGKILL. Ignoring.", UNIT(s)->id);
3291 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3294 case SERVICE_STOP_POST:
3295 log_warning_unit(UNIT(s)->id,
3296 "%s stop-post timed out. Terminating.", UNIT(s)->id);
3297 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3300 case SERVICE_FINAL_SIGTERM:
3301 if (s->kill_context.send_sigkill) {
3302 log_warning_unit(UNIT(s)->id,
3303 "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id);
3304 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3306 log_warning_unit(UNIT(s)->id,
3307 "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.",
3309 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3314 case SERVICE_FINAL_SIGKILL:
3315 log_warning_unit(UNIT(s)->id,
3316 "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id);
3317 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3320 case SERVICE_AUTO_RESTART:
3321 log_info_unit(UNIT(s)->id,
3322 s->restart_usec > 0 ?
3323 "%s holdoff time over, scheduling restart." :
3324 "%s has no holdoff time, scheduling restart.",
3326 service_enter_restart(s);
3330 assert_not_reached("Timeout at wrong time.");
3336 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) {
3337 Service *s = SERVICE(userdata);
3340 assert(source == s->watchdog_event_source);
3342 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
3343 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG);
3348 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3349 Service *s = SERVICE(u);
3351 bool notify_dbus = false;
3355 log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)",
3356 u->id, pid, tags && *tags ? tags[0] : "(empty)");
3358 if (s->notify_access == NOTIFY_NONE) {
3359 log_warning_unit(u->id,
3360 "%s: Got notification message from PID "PID_FMT", but reception is disabled.",
3365 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3367 if (s->main_pid != 0)
3368 log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, u->id, pid, s->main_pid);
3370 log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", u->id, pid);
3374 /* Interpret MAINPID= */
3375 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3376 (s->state == SERVICE_START ||
3377 s->state == SERVICE_START_POST ||
3378 s->state == SERVICE_RUNNING ||
3379 s->state == SERVICE_RELOAD)) {
3381 if (parse_pid(e + 8, &pid) < 0)
3382 log_warning_unit(u->id, "Failed to parse notification message %s", e);
3384 log_debug_unit(u->id, "%s: got %s", u->id, e);
3385 service_set_main_pid(s, pid);
3386 unit_watch_pid(UNIT(s), pid);
3391 /* Interpret READY= */
3392 if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) {
3393 log_debug_unit(u->id, "%s: got READY=1", u->id);
3394 service_enter_start_post(s);
3398 /* Interpret STATUS= */
3399 e = strv_find_prefix(tags, "STATUS=");
3404 if (!utf8_is_valid(e+7)) {
3405 log_warning_unit(u->id, "Status message in notification is not UTF-8 clean.");
3409 log_debug_unit(u->id, "%s: got %s", u->id, e);
3420 if (!streq_ptr(s->status_text, t)) {
3421 free(s->status_text);
3428 /* Interpret WATCHDOG= */
3429 if (strv_find(tags, "WATCHDOG=1")) {
3430 log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
3431 service_reset_watchdog(s);
3434 /* Notify clients about changed status or main pid */
3436 unit_add_to_dbus_queue(u);
3439 static int service_get_timeout(Unit *u, uint64_t *timeout) {
3440 Service *s = SERVICE(u);
3443 if (!s->timer_event_source)
3446 r = sd_event_source_get_time(s->timer_event_source, timeout);
3453 #ifdef HAVE_SYSV_COMPAT
3455 static int service_enumerate(Manager *m) {
3458 _cleanup_closedir_ DIR *d = NULL;
3459 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3460 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3461 _cleanup_set_free_ Set *shutdown_services = NULL;
3468 if (m->running_as != SYSTEMD_SYSTEM)
3471 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3472 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3476 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3487 if (errno != ENOENT)
3488 log_warning("opendir(%s) failed: %m", path);
3493 while ((de = readdir(d))) {
3496 if (ignore_file(de->d_name))
3499 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3502 if (strlen(de->d_name) < 4)
3505 a = undecchar(de->d_name[1]);
3506 b = undecchar(de->d_name[2]);
3512 fpath = strjoin(path, "/", de->d_name, NULL);
3518 if (access(fpath, X_OK) < 0) {
3520 if (errno != ENOENT)
3521 log_warning("access() failed on %s: %m", fpath);
3527 name = sysv_translate_name(de->d_name + 3);
3533 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3535 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3539 if (de->d_name[0] == 'S') {
3541 if (rcnd_table[i].type == RUNLEVEL_UP) {
3542 SERVICE(service)->sysv_start_priority_from_rcnd =
3543 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3545 SERVICE(service)->sysv_enabled = true;
3548 r = set_ensure_allocated(&runlevel_services[i],
3549 trivial_hash_func, trivial_compare_func);
3553 r = set_put(runlevel_services[i], service);
3557 } else if (de->d_name[0] == 'K' &&
3558 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3560 r = set_ensure_allocated(&shutdown_services,
3561 trivial_hash_func, trivial_compare_func);
3565 r = set_put(shutdown_services, service);
3572 /* Now we loaded all stubs and are aware of the lowest
3573 start-up priority for all services, not let's actually load
3574 the services, this will also tell us which services are
3575 actually native now */
3576 manager_dispatch_load_queue(m);
3578 /* If this is a native service, rely on native ways to pull in
3579 * a service, don't pull it in via sysv rcN.d links. */
3580 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3581 SET_FOREACH(service, runlevel_services[i], j) {
3582 service = unit_follow_merge(service);
3584 if (service->fragment_path)
3587 r = unit_add_two_dependencies_by_name_inverse(
3588 service, UNIT_AFTER, UNIT_WANTS,
3589 rcnd_table[i].target, NULL, true);
3594 /* We honour K links only for halt/reboot. For the normal
3595 * runlevels we assume the stop jobs will be implicitly added
3596 * by the core logic. Also, we don't really distinguish here
3597 * between the runlevels 0 and 6 and just add them to the
3598 * special shutdown target. */
3599 SET_FOREACH(service, shutdown_services, j) {
3600 service = unit_follow_merge(service);
3602 if (service->fragment_path)
3605 r = unit_add_two_dependencies_by_name(
3606 service, UNIT_BEFORE, UNIT_CONFLICTS,
3607 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3616 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3617 set_free(runlevel_services[i]);
3623 static void service_bus_name_owner_change(
3626 const char *old_owner,
3627 const char *new_owner) {
3629 Service *s = SERVICE(u);
3635 assert(streq(s->bus_name, name));
3636 assert(old_owner || new_owner);
3638 if (old_owner && new_owner)
3639 log_debug_unit(u->id,
3640 "%s's D-Bus name %s changed owner from %s to %s",
3641 u->id, name, old_owner, new_owner);
3643 log_debug_unit(u->id,
3644 "%s's D-Bus name %s no longer registered by %s",
3645 u->id, name, old_owner);
3647 log_debug_unit(u->id,
3648 "%s's D-Bus name %s now registered by %s",
3649 u->id, name, new_owner);
3651 s->bus_name_good = !!new_owner;
3653 if (s->type == SERVICE_DBUS) {
3655 /* service_enter_running() will figure out what to
3657 if (s->state == SERVICE_RUNNING)
3658 service_enter_running(s, SERVICE_SUCCESS);
3659 else if (s->state == SERVICE_START && new_owner)
3660 service_enter_start_post(s);
3662 } else if (new_owner &&
3664 (s->state == SERVICE_START ||
3665 s->state == SERVICE_START_POST ||
3666 s->state == SERVICE_RUNNING ||
3667 s->state == SERVICE_RELOAD)) {
3669 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
3672 /* Try to acquire PID from bus service */
3674 r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds);
3676 r = sd_bus_creds_get_pid(creds, &pid);
3678 log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3680 service_set_main_pid(s, pid);
3681 unit_watch_pid(UNIT(s), pid);
3686 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3687 _cleanup_free_ char *peer = NULL;
3693 /* This is called by the socket code when instantiating a new
3694 * service for a stream socket and the socket needs to be
3697 if (UNIT(s)->load_state != UNIT_LOADED)
3700 if (s->socket_fd >= 0)
3703 if (s->state != SERVICE_DEAD)
3706 if (getpeername_pretty(fd, &peer) >= 0) {
3708 if (UNIT(s)->description) {
3709 _cleanup_free_ char *a;
3711 a = strjoin(UNIT(s)->description, " (", peer, ")", NULL);
3715 r = unit_set_description(UNIT(s), a);
3717 r = unit_set_description(UNIT(s), peer);
3725 unit_ref_set(&s->accept_socket, UNIT(sock));
3727 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3730 static void service_reset_failed(Unit *u) {
3731 Service *s = SERVICE(u);
3735 if (s->state == SERVICE_FAILED)
3736 service_set_state(s, SERVICE_DEAD);
3738 s->result = SERVICE_SUCCESS;
3739 s->reload_result = SERVICE_SUCCESS;
3741 RATELIMIT_RESET(s->start_limit);
3744 static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
3745 Service *s = SERVICE(u);
3747 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3750 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3751 [SERVICE_DEAD] = "dead",
3752 [SERVICE_START_PRE] = "start-pre",
3753 [SERVICE_START] = "start",
3754 [SERVICE_START_POST] = "start-post",
3755 [SERVICE_RUNNING] = "running",
3756 [SERVICE_EXITED] = "exited",
3757 [SERVICE_RELOAD] = "reload",
3758 [SERVICE_STOP] = "stop",
3759 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3760 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3761 [SERVICE_STOP_POST] = "stop-post",
3762 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3763 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3764 [SERVICE_FAILED] = "failed",
3765 [SERVICE_AUTO_RESTART] = "auto-restart",
3768 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3770 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3771 [SERVICE_RESTART_NO] = "no",
3772 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3773 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3774 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3775 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3776 [SERVICE_RESTART_ALWAYS] = "always"
3779 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3781 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3782 [SERVICE_SIMPLE] = "simple",
3783 [SERVICE_FORKING] = "forking",
3784 [SERVICE_ONESHOT] = "oneshot",
3785 [SERVICE_DBUS] = "dbus",
3786 [SERVICE_NOTIFY] = "notify",
3787 [SERVICE_IDLE] = "idle"
3790 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3792 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3793 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3794 [SERVICE_EXEC_START] = "ExecStart",
3795 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3796 [SERVICE_EXEC_RELOAD] = "ExecReload",
3797 [SERVICE_EXEC_STOP] = "ExecStop",
3798 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3801 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3803 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3804 [NOTIFY_NONE] = "none",
3805 [NOTIFY_MAIN] = "main",
3806 [NOTIFY_ALL] = "all"
3809 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3811 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3812 [SERVICE_SUCCESS] = "success",
3813 [SERVICE_FAILURE_RESOURCES] = "resources",
3814 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3815 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3816 [SERVICE_FAILURE_SIGNAL] = "signal",
3817 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3818 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3819 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3822 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3824 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3825 [SERVICE_START_LIMIT_NONE] = "none",
3826 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3827 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3828 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3830 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3832 const UnitVTable service_vtable = {
3833 .object_size = sizeof(Service),
3834 .exec_context_offset = offsetof(Service, exec_context),
3835 .cgroup_context_offset = offsetof(Service, cgroup_context),
3836 .kill_context_offset = offsetof(Service, kill_context),
3837 .exec_runtime_offset = offsetof(Service, exec_runtime),
3843 .private_section = "Service",
3845 .init = service_init,
3846 .done = service_done,
3847 .load = service_load,
3849 .coldplug = service_coldplug,
3851 .dump = service_dump,
3853 .start = service_start,
3854 .stop = service_stop,
3855 .reload = service_reload,
3857 .can_reload = service_can_reload,
3859 .kill = service_kill,
3861 .serialize = service_serialize,
3862 .deserialize_item = service_deserialize_item,
3864 .active_state = service_active_state,
3865 .sub_state_to_string = service_sub_state_to_string,
3867 .check_gc = service_check_gc,
3868 .check_snapshot = service_check_snapshot,
3870 .sigchld_event = service_sigchld_event,
3872 .reset_failed = service_reset_failed,
3874 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3875 .notify_message = service_notify_message,
3877 .bus_name_owner_change = service_bus_name_owner_change,
3879 .bus_interface = "org.freedesktop.systemd1.Service",
3880 .bus_vtable = bus_service_vtable,
3881 .bus_set_property = bus_service_set_property,
3882 .bus_commit_properties = bus_service_commit_properties,
3884 .get_timeout = service_get_timeout,
3886 #ifdef HAVE_SYSV_COMPAT
3887 .enumerate = service_enumerate,
3890 .can_transient = true,
3892 .status_message_formats = {
3893 .starting_stopping = {
3894 [0] = "Starting %s...",
3895 [1] = "Stopping %s...",
3897 .finished_start_job = {
3898 [JOB_DONE] = "Started %s.",
3899 [JOB_FAILED] = "Failed to start %s.",
3900 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3901 [JOB_TIMEOUT] = "Timed out starting %s.",
3903 .finished_stop_job = {
3904 [JOB_DONE] = "Stopped %s.",
3905 [JOB_FAILED] = "Stopped (with error) %s.",
3906 [JOB_TIMEOUT] = "Timed out stopping %s.",