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>
31 #include "load-fragment.h"
32 #include "load-dropin.h"
35 #include "unit-name.h"
36 #include "unit-printf.h"
37 #include "dbus-service.h"
39 #include "exit-status.h"
41 #include "path-util.h"
46 #include "bus-error.h"
49 #ifdef HAVE_SYSV_COMPAT
51 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
53 typedef enum RunlevelType {
61 const RunlevelType type;
63 /* Standard SysV runlevels for start-up */
64 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
65 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
66 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
67 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
68 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
70 /* Standard SysV runlevels for shutdown */
71 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
72 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
74 /* Note that the order here matters, as we read the
75 directories in this order, and we want to make sure that
76 sysv_start_priority is known when we first load the
77 unit. And that value we only know from S links. Hence
78 UP must be read before DOWN */
81 #define RUNLEVELS_UP "12345"
84 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
85 [SERVICE_DEAD] = UNIT_INACTIVE,
86 [SERVICE_START_PRE] = UNIT_ACTIVATING,
87 [SERVICE_START] = UNIT_ACTIVATING,
88 [SERVICE_START_POST] = UNIT_ACTIVATING,
89 [SERVICE_RUNNING] = UNIT_ACTIVE,
90 [SERVICE_EXITED] = UNIT_ACTIVE,
91 [SERVICE_RELOAD] = UNIT_RELOADING,
92 [SERVICE_STOP] = UNIT_DEACTIVATING,
93 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
94 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
95 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
96 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
97 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
98 [SERVICE_FAILED] = UNIT_FAILED,
99 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
102 /* For Type=idle we never want to delay any other jobs, hence we
103 * consider idle jobs active as soon as we start working on them */
104 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
105 [SERVICE_DEAD] = UNIT_INACTIVE,
106 [SERVICE_START_PRE] = UNIT_ACTIVE,
107 [SERVICE_START] = UNIT_ACTIVE,
108 [SERVICE_START_POST] = UNIT_ACTIVE,
109 [SERVICE_RUNNING] = UNIT_ACTIVE,
110 [SERVICE_EXITED] = UNIT_ACTIVE,
111 [SERVICE_RELOAD] = UNIT_RELOADING,
112 [SERVICE_STOP] = UNIT_DEACTIVATING,
113 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
114 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
115 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
116 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
117 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
118 [SERVICE_FAILED] = UNIT_FAILED,
119 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
122 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata);
123 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata);
124 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata);
126 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
128 static void service_init(Unit *u) {
129 Service *s = SERVICE(u);
132 assert(u->load_state == UNIT_STUB);
134 s->timeout_start_usec = u->manager->default_timeout_start_usec;
135 s->timeout_stop_usec = u->manager->default_timeout_stop_usec;
136 s->restart_usec = u->manager->default_restart_usec;
137 s->type = _SERVICE_TYPE_INVALID;
139 #ifdef HAVE_SYSV_COMPAT
140 s->sysv_start_priority = -1;
141 s->sysv_start_priority_from_rcnd = -1;
144 s->guess_main_pid = true;
146 exec_context_init(&s->exec_context);
147 kill_context_init(&s->kill_context);
148 cgroup_context_init(&s->cgroup_context);
150 unit_cgroup_context_init_defaults(u, &s->cgroup_context);
152 RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst);
154 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
157 static void service_unwatch_control_pid(Service *s) {
160 if (s->control_pid <= 0)
163 unit_unwatch_pid(UNIT(s), s->control_pid);
167 static void service_unwatch_main_pid(Service *s) {
170 if (s->main_pid <= 0)
173 unit_unwatch_pid(UNIT(s), s->main_pid);
177 static void service_unwatch_pid_file(Service *s) {
178 if (!s->pid_file_pathspec)
181 log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
182 UNIT(s)->id, s->pid_file_pathspec->path);
183 path_spec_unwatch(s->pid_file_pathspec);
184 path_spec_done(s->pid_file_pathspec);
185 free(s->pid_file_pathspec);
186 s->pid_file_pathspec = NULL;
189 static int service_set_main_pid(Service *s, pid_t pid) {
200 if (s->main_pid == pid && s->main_pid_known)
203 if (s->main_pid != pid) {
204 service_unwatch_main_pid(s);
205 exec_status_start(&s->main_exec_status, pid);
209 s->main_pid_known = true;
211 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
212 log_warning_unit(UNIT(s)->id,
213 "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.",
216 s->main_pid_alien = true;
218 s->main_pid_alien = false;
223 static void service_close_socket_fd(Service *s) {
226 if (s->socket_fd < 0)
229 s->socket_fd = safe_close(s->socket_fd);
232 static void service_connection_unref(Service *s) {
235 if (!UNIT_ISSET(s->accept_socket))
238 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
239 unit_ref_unset(&s->accept_socket);
242 static void service_stop_watchdog(Service *s) {
245 s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source);
246 s->watchdog_timestamp = DUAL_TIMESTAMP_NULL;
249 static void service_start_watchdog(Service *s) {
254 if (s->watchdog_usec <= 0)
257 if (s->watchdog_event_source) {
258 r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec);
260 log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r));
264 r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT);
266 r = sd_event_add_monotonic(UNIT(s)->manager->event, &s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, service_dispatch_watchdog, s);
268 log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r));
272 /* Let's process everything else which might be a sign
273 * of living before we consider a service died. */
274 r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE);
278 log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
281 static void service_reset_watchdog(Service *s) {
284 dual_timestamp_get(&s->watchdog_timestamp);
285 service_start_watchdog(s);
288 static void service_done(Unit *u) {
289 Service *s = SERVICE(u);
296 #ifdef HAVE_SYSV_COMPAT
297 free(s->sysv_runlevels);
298 s->sysv_runlevels = NULL;
301 free(s->status_text);
302 s->status_text = NULL;
304 cgroup_context_done(&s->cgroup_context);
305 exec_context_done(&s->exec_context);
306 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
307 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
308 s->control_command = NULL;
309 s->main_command = NULL;
311 set_free(s->restart_ignore_status.code);
312 s->restart_ignore_status.code = NULL;
313 set_free(s->restart_ignore_status.signal);
314 s->restart_ignore_status.signal = NULL;
316 set_free(s->success_status.code);
317 s->success_status.code = NULL;
318 set_free(s->success_status.signal);
319 s->success_status.signal = NULL;
321 /* This will leak a process, but at least no memory or any of
323 service_unwatch_main_pid(s);
324 service_unwatch_control_pid(s);
325 service_unwatch_pid_file(s);
328 unit_unwatch_bus_name(u, s->bus_name);
333 service_close_socket_fd(s);
334 service_connection_unref(s);
336 unit_ref_unset(&s->accept_socket);
338 service_stop_watchdog(s);
340 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
343 static int service_arm_timer(Service *s, usec_t usec) {
348 if (s->timer_event_source) {
349 r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec);
353 return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
356 return sd_event_add_monotonic(UNIT(s)->manager->event, &s->timer_event_source, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s);
359 #ifdef HAVE_SYSV_COMPAT
360 static char *sysv_translate_name(const char *name) {
363 r = new(char, strlen(name) + strlen(".service") + 1);
367 if (endswith(name, ".sh"))
368 /* Drop .sh suffix */
369 strcpy(stpcpy(r, name) - 3, ".service");
371 /* Normal init script name */
372 strcpy(stpcpy(r, name), ".service");
377 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
379 /* We silently ignore the $ prefix here. According to the LSB
380 * spec it simply indicates whether something is a
381 * standardized name or a distribution-specific one. Since we
382 * just follow what already exists and do not introduce new
383 * uses or names we don't care who introduced a new name. */
385 static const char * const table[] = {
386 /* LSB defined facilities */
388 "network", SPECIAL_NETWORK_TARGET,
389 "named", SPECIAL_NSS_LOOKUP_TARGET,
390 "portmap", SPECIAL_RPCBIND_TARGET,
391 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
393 "time", SPECIAL_TIME_SYNC_TARGET,
403 n = *name == '$' ? name + 1 : name;
405 for (i = 0; i < ELEMENTSOF(table); i += 2) {
407 if (!streq(table[i], n))
413 r = strdup(table[i+1]);
420 /* If we don't know this name, fallback heuristics to figure
421 * out whether something is a target or a service alias. */
424 if (!unit_prefix_is_valid(n))
427 /* Facilities starting with $ are most likely targets */
428 r = unit_name_build(n, NULL, ".target");
429 } else if (filename && streq(name, filename))
430 /* Names equaling the file name of the services are redundant */
433 /* Everything else we assume to be normal service names */
434 r = sysv_translate_name(n);
445 static int sysv_fix_order(Service *s) {
451 if (s->sysv_start_priority < 0)
454 /* For each pair of services where at least one lacks a LSB
455 * header, we use the start priority value to order things. */
457 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
460 bool special_s, special_t;
467 if (UNIT(t)->load_state != UNIT_LOADED)
470 if (t->sysv_start_priority < 0)
473 /* If both units have modern headers we don't care
474 * about the priorities */
475 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
476 (UNIT(t)->fragment_path || t->sysv_has_lsb))
479 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
480 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
482 if (special_t && !special_s)
484 else if (special_s && !special_t)
486 else if (t->sysv_start_priority < s->sysv_start_priority)
488 else if (t->sysv_start_priority > s->sysv_start_priority)
493 /* FIXME: Maybe we should compare the name here lexicographically? */
495 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
502 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
505 if (!(c = new0(ExecCommand, 1)))
508 if (!(c->path = strdup(path))) {
513 if (!(c->argv = strv_new(path, arg1, NULL))) {
522 static int sysv_exec_commands(Service *s, const bool supports_reload) {
527 assert(UNIT(s)->source_path);
529 c = exec_command_new(UNIT(s)->source_path, "start");
532 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
534 c = exec_command_new(UNIT(s)->source_path, "stop");
537 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
539 if (supports_reload) {
540 c = exec_command_new(UNIT(s)->source_path, "reload");
543 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
549 static bool usage_contains_reload(const char *line) {
550 return (strcasestr(line, "{reload|") ||
551 strcasestr(line, "{reload}") ||
552 strcasestr(line, "{reload\"") ||
553 strcasestr(line, "|reload|") ||
554 strcasestr(line, "|reload}") ||
555 strcasestr(line, "|reload\""));
558 static int service_load_sysv_path(Service *s, const char *path) {
570 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
572 bool supports_reload = false;
579 f = fopen(path, "re");
581 r = errno == ENOENT ? 0 : -errno;
585 if (fstat(fileno(f), &st) < 0) {
590 free(u->source_path);
591 u->source_path = strdup(path);
592 if (!u->source_path) {
596 u->source_mtime = timespec_load(&st.st_mtim);
598 if (null_or_empty(&st)) {
599 u->load_state = UNIT_MASKED;
607 char l[LINE_MAX], *t;
609 if (!fgets(l, sizeof(l), f)) {
614 log_error_unit(u->id,
615 "Failed to read configuration file '%s': %s",
624 /* Try to figure out whether this init script supports
625 * the reload operation. This heuristic looks for
626 * "Usage" lines which include the reload option. */
627 if ( state == USAGE_CONTINUATION ||
628 (state == NORMAL && strcasestr(t, "usage"))) {
629 if (usage_contains_reload(t)) {
630 supports_reload = true;
632 } else if (t[strlen(t)-1] == '\\')
633 state = USAGE_CONTINUATION;
641 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
643 s->sysv_has_lsb = true;
647 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
653 t += strspn(t, WHITESPACE);
655 if (state == NORMAL) {
657 /* Try to parse Red Hat style chkconfig headers */
659 if (startswith_no_case(t, "chkconfig:")) {
661 char runlevels[16], *k;
665 if (sscanf(t+10, "%15s %i %*i",
667 &start_priority) != 2) {
669 log_warning_unit(u->id,
670 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
675 /* A start priority gathered from the
676 * symlink farms is preferred over the
677 * data from the LSB header. */
678 if (start_priority < 0 || start_priority > 99)
679 log_warning_unit(u->id,
680 "[%s:%u] Start priority out of range. Ignoring.",
683 s->sysv_start_priority = start_priority;
685 char_array_0(runlevels);
686 k = delete_chars(runlevels, WHITESPACE "-");
691 if (!(d = strdup(k))) {
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 /* The priority that has been set in /etc/rcN.d/ hierarchies
994 * takes precedence over what is stored as default in the LSB
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_add_exec_dependencies(u, &s->exec_context);
1209 r = unit_add_default_slice(u);
1213 #ifdef HAVE_SYSV_COMPAT
1214 r = sysv_fix_order(s);
1220 r = unit_watch_bus_name(u, s->bus_name);
1225 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1226 s->notify_access = NOTIFY_MAIN;
1228 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1229 s->notify_access = NOTIFY_MAIN;
1231 if (UNIT(s)->default_dependencies) {
1232 r = service_add_default_dependencies(s);
1237 r = unit_exec_context_patch_defaults(u, &s->exec_context);
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 switch (s->start_limit_action) {
2382 case SERVICE_START_LIMIT_NONE:
2383 log_warning_unit(UNIT(s)->id,
2384 "%s start request repeated too quickly, refusing to start.",
2388 case SERVICE_START_LIMIT_REBOOT: {
2389 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2392 log_warning_unit(UNIT(s)->id,
2393 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2395 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2396 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2397 true, &error, NULL);
2399 log_error_unit(UNIT(s)->id,
2400 "Failed to reboot: %s.", bus_error_message(&error, r));
2405 case SERVICE_START_LIMIT_REBOOT_FORCE:
2406 log_warning_unit(UNIT(s)->id,
2407 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2408 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2411 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2412 log_warning_unit(UNIT(s)->id,
2413 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2415 reboot(RB_AUTOBOOT);
2419 log_error_unit(UNIT(s)->id,
2420 "start limit action=%i", s->start_limit_action);
2421 assert_not_reached("Unknown StartLimitAction.");
2427 static int service_start(Unit *u) {
2428 Service *s = SERVICE(u);
2433 /* We cannot fulfill this request right now, try again later
2435 if (s->state == SERVICE_STOP ||
2436 s->state == SERVICE_STOP_SIGTERM ||
2437 s->state == SERVICE_STOP_SIGKILL ||
2438 s->state == SERVICE_STOP_POST ||
2439 s->state == SERVICE_FINAL_SIGTERM ||
2440 s->state == SERVICE_FINAL_SIGKILL)
2443 /* Already on it! */
2444 if (s->state == SERVICE_START_PRE ||
2445 s->state == SERVICE_START ||
2446 s->state == SERVICE_START_POST)
2449 /* A service that will be restarted must be stopped first to
2450 * trigger BindsTo and/or OnFailure dependencies. If a user
2451 * does not want to wait for the holdoff time to elapse, the
2452 * service should be manually restarted, not started. We
2453 * simply return EAGAIN here, so that any start jobs stay
2454 * queued, and assume that the auto restart timer will
2455 * eventually trigger the restart. */
2456 if (s->state == SERVICE_AUTO_RESTART)
2459 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2461 /* Make sure we don't enter a busy loop of some kind. */
2462 r = service_start_limit_test(s);
2464 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2468 s->result = SERVICE_SUCCESS;
2469 s->reload_result = SERVICE_SUCCESS;
2470 s->main_pid_known = false;
2471 s->main_pid_alien = false;
2472 s->forbid_restart = false;
2474 service_enter_start_pre(s);
2478 static int service_stop(Unit *u) {
2479 Service *s = SERVICE(u);
2483 /* Don't create restart jobs from here. */
2484 s->forbid_restart = true;
2487 if (s->state == SERVICE_STOP ||
2488 s->state == SERVICE_STOP_SIGTERM ||
2489 s->state == SERVICE_STOP_SIGKILL ||
2490 s->state == SERVICE_STOP_POST ||
2491 s->state == SERVICE_FINAL_SIGTERM ||
2492 s->state == SERVICE_FINAL_SIGKILL)
2495 /* A restart will be scheduled or is in progress. */
2496 if (s->state == SERVICE_AUTO_RESTART) {
2497 service_set_state(s, SERVICE_DEAD);
2501 /* If there's already something running we go directly into
2503 if (s->state == SERVICE_START_PRE ||
2504 s->state == SERVICE_START ||
2505 s->state == SERVICE_START_POST ||
2506 s->state == SERVICE_RELOAD) {
2507 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2511 assert(s->state == SERVICE_RUNNING ||
2512 s->state == SERVICE_EXITED);
2514 service_enter_stop(s, SERVICE_SUCCESS);
2518 static int service_reload(Unit *u) {
2519 Service *s = SERVICE(u);
2523 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2525 service_enter_reload(s);
2529 _pure_ static bool service_can_reload(Unit *u) {
2530 Service *s = SERVICE(u);
2534 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2537 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2538 Service *s = SERVICE(u);
2544 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2545 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2546 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2548 if (s->control_pid > 0)
2549 unit_serialize_item_format(u, f, "control-pid", PID_FMT,
2552 if (s->main_pid_known && s->main_pid > 0)
2553 unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid);
2555 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2558 unit_serialize_item(u, f, "status-text", s->status_text);
2560 /* FIXME: There's a minor uncleanliness here: if there are
2561 * multiple commands attached here, we will start from the
2562 * first one again */
2563 if (s->control_command_id >= 0)
2564 unit_serialize_item(u, f, "control-command",
2565 service_exec_command_to_string(s->control_command_id));
2567 if (s->socket_fd >= 0) {
2570 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2573 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2576 if (s->main_exec_status.pid > 0) {
2577 unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT,
2578 s->main_exec_status.pid);
2579 dual_timestamp_serialize(f, "main-exec-status-start",
2580 &s->main_exec_status.start_timestamp);
2581 dual_timestamp_serialize(f, "main-exec-status-exit",
2582 &s->main_exec_status.exit_timestamp);
2584 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2585 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2586 s->main_exec_status.code);
2587 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2588 s->main_exec_status.status);
2591 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2592 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2594 if (s->forbid_restart)
2595 unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart));
2600 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2601 Service *s = SERVICE(u);
2608 if (streq(key, "state")) {
2611 state = service_state_from_string(value);
2613 log_debug_unit(u->id, "Failed to parse state value %s", value);
2615 s->deserialized_state = state;
2616 } else if (streq(key, "result")) {
2619 f = service_result_from_string(value);
2621 log_debug_unit(u->id, "Failed to parse result value %s", value);
2622 else if (f != SERVICE_SUCCESS)
2625 } else if (streq(key, "reload-result")) {
2628 f = service_result_from_string(value);
2630 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2631 else if (f != SERVICE_SUCCESS)
2632 s->reload_result = f;
2634 } else if (streq(key, "control-pid")) {
2637 if (parse_pid(value, &pid) < 0)
2638 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2640 s->control_pid = pid;
2641 } else if (streq(key, "main-pid")) {
2644 if (parse_pid(value, &pid) < 0)
2645 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2647 service_set_main_pid(s, pid);
2648 unit_watch_pid(UNIT(s), pid);
2650 } else if (streq(key, "main-pid-known")) {
2653 b = parse_boolean(value);
2655 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2657 s->main_pid_known = b;
2658 } else if (streq(key, "status-text")) {
2665 free(s->status_text);
2669 } else if (streq(key, "control-command")) {
2670 ServiceExecCommand id;
2672 id = service_exec_command_from_string(value);
2674 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2676 s->control_command_id = id;
2677 s->control_command = s->exec_command[id];
2679 } else if (streq(key, "socket-fd")) {
2682 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2683 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2686 safe_close(s->socket_fd);
2687 s->socket_fd = fdset_remove(fds, fd);
2689 } else if (streq(key, "main-exec-status-pid")) {
2692 if (parse_pid(value, &pid) < 0)
2693 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2695 s->main_exec_status.pid = pid;
2696 } else if (streq(key, "main-exec-status-code")) {
2699 if (safe_atoi(value, &i) < 0)
2700 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2702 s->main_exec_status.code = i;
2703 } else if (streq(key, "main-exec-status-status")) {
2706 if (safe_atoi(value, &i) < 0)
2707 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2709 s->main_exec_status.status = i;
2710 } else if (streq(key, "main-exec-status-start"))
2711 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2712 else if (streq(key, "main-exec-status-exit"))
2713 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2714 else if (streq(key, "watchdog-timestamp"))
2715 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2716 else if (streq(key, "forbid-restart")) {
2719 b = parse_boolean(value);
2721 log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value);
2723 s->forbid_restart = b;
2725 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2730 _pure_ static UnitActiveState service_active_state(Unit *u) {
2731 const UnitActiveState *table;
2735 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2737 return table[SERVICE(u)->state];
2740 static const char *service_sub_state_to_string(Unit *u) {
2743 return service_state_to_string(SERVICE(u)->state);
2746 static bool service_check_gc(Unit *u) {
2747 Service *s = SERVICE(u);
2751 /* Never clean up services that still have a process around,
2752 * even if the service is formally dead. */
2753 if (cgroup_good(s) > 0 ||
2754 main_pid_good(s) > 0 ||
2755 control_pid_good(s) > 0)
2758 #ifdef HAVE_SYSV_COMPAT
2766 _pure_ static bool service_check_snapshot(Unit *u) {
2767 Service *s = SERVICE(u);
2771 return (s->socket_fd < 0);
2774 static int service_retry_pid_file(Service *s) {
2777 assert(s->pid_file);
2778 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2780 r = service_load_pid_file(s, false);
2784 service_unwatch_pid_file(s);
2786 service_enter_running(s, SERVICE_SUCCESS);
2790 static int service_watch_pid_file(Service *s) {
2793 log_debug_unit(UNIT(s)->id,
2794 "Setting watch for %s's PID file %s",
2795 UNIT(s)->id, s->pid_file_pathspec->path);
2796 r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io);
2800 /* the pidfile might have appeared just before we set the watch */
2801 log_debug_unit(UNIT(s)->id,
2802 "Trying to read %s's PID file %s in case it changed",
2803 UNIT(s)->id, s->pid_file_pathspec->path);
2804 service_retry_pid_file(s);
2808 log_error_unit(UNIT(s)->id,
2809 "Failed to set a watch for %s's PID file %s: %s",
2810 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2811 service_unwatch_pid_file(s);
2815 static int service_demand_pid_file(Service *s) {
2818 assert(s->pid_file);
2819 assert(!s->pid_file_pathspec);
2821 ps = new0(PathSpec, 1);
2826 ps->path = strdup(s->pid_file);
2832 path_kill_slashes(ps->path);
2834 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2835 * keep their PID file open all the time. */
2836 ps->type = PATH_MODIFIED;
2837 ps->inotify_fd = -1;
2839 s->pid_file_pathspec = ps;
2841 return service_watch_pid_file(s);
2844 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) {
2845 PathSpec *p = userdata;
2850 s = SERVICE(p->unit);
2854 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2855 assert(s->pid_file_pathspec);
2856 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2858 log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id);
2860 if (path_spec_fd_event(p, events) < 0)
2863 if (service_retry_pid_file(s) == 0)
2866 if (service_watch_pid_file(s) < 0)
2872 service_unwatch_pid_file(s);
2873 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2877 static void service_notify_cgroup_empty_event(Unit *u) {
2878 Service *s = SERVICE(u);
2882 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
2886 /* Waiting for SIGCHLD is usually more interesting,
2887 * because it includes return codes/signals. Which is
2888 * why we ignore the cgroup events for most cases,
2889 * except when we don't know pid which to expect the
2893 case SERVICE_START_POST:
2894 /* If we were hoping for the daemon to write its PID file,
2895 * we can give up now. */
2896 if (s->pid_file_pathspec) {
2897 log_warning_unit(u->id,
2898 "%s never wrote its PID file. Failing.", UNIT(s)->id);
2899 service_unwatch_pid_file(s);
2900 if (s->state == SERVICE_START)
2901 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2903 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2907 case SERVICE_RUNNING:
2908 /* service_enter_running() will figure out what to do */
2909 service_enter_running(s, SERVICE_SUCCESS);
2912 case SERVICE_STOP_SIGTERM:
2913 case SERVICE_STOP_SIGKILL:
2915 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2916 service_enter_stop_post(s, SERVICE_SUCCESS);
2920 case SERVICE_STOP_POST:
2921 case SERVICE_FINAL_SIGTERM:
2922 case SERVICE_FINAL_SIGKILL:
2923 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2924 service_enter_dead(s, SERVICE_SUCCESS, true);
2933 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2934 Service *s = SERVICE(u);
2940 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2941 is_clean_exit_lsb(code, status, &s->success_status))
2942 f = SERVICE_SUCCESS;
2943 else if (code == CLD_EXITED)
2944 f = SERVICE_FAILURE_EXIT_CODE;
2945 else if (code == CLD_KILLED)
2946 f = SERVICE_FAILURE_SIGNAL;
2947 else if (code == CLD_DUMPED)
2948 f = SERVICE_FAILURE_CORE_DUMP;
2950 assert_not_reached("Unknown code");
2952 if (s->main_pid == pid) {
2953 /* Forking services may occasionally move to a new PID.
2954 * As long as they update the PID file before exiting the old
2955 * PID, they're fine. */
2956 if (service_load_pid_file(s, false) == 0)
2960 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2962 if (s->main_command) {
2963 /* If this is not a forking service than the
2964 * main process got started and hence we copy
2965 * the exit status so that it is recorded both
2966 * as main and as control process exit
2969 s->main_command->exec_status = s->main_exec_status;
2971 if (s->main_command->ignore)
2972 f = SERVICE_SUCCESS;
2973 } else if (s->exec_command[SERVICE_EXEC_START]) {
2975 /* If this is a forked process, then we should
2976 * ignore the return value if this was
2977 * configured for the starter process */
2979 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2980 f = SERVICE_SUCCESS;
2983 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2985 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2986 u->id, sigchld_code_to_string(code), status,
2987 strna(code == CLD_EXITED
2988 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2989 : signal_to_string(status)),
2990 "EXIT_CODE=%s", sigchld_code_to_string(code),
2991 "EXIT_STATUS=%i", status,
2994 if (f != SERVICE_SUCCESS)
2997 if (s->main_command &&
2998 s->main_command->command_next &&
2999 f == SERVICE_SUCCESS) {
3001 /* There is another command to *
3002 * execute, so let's do that. */
3004 log_debug_unit(u->id,
3005 "%s running next main command for state %s",
3006 u->id, service_state_to_string(s->state));
3007 service_run_next_main(s);
3011 /* The service exited, so the service is officially
3013 s->main_command = NULL;
3017 case SERVICE_START_POST:
3018 case SERVICE_RELOAD:
3020 /* Need to wait until the operation is
3025 if (s->type == SERVICE_ONESHOT) {
3026 /* This was our main goal, so let's go on */
3027 if (f == SERVICE_SUCCESS)
3028 service_enter_start_post(s);
3030 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3036 case SERVICE_RUNNING:
3037 service_enter_running(s, f);
3040 case SERVICE_STOP_SIGTERM:
3041 case SERVICE_STOP_SIGKILL:
3043 if (!control_pid_good(s))
3044 service_enter_stop_post(s, f);
3046 /* If there is still a control process, wait for that first */
3049 case SERVICE_STOP_POST:
3050 case SERVICE_FINAL_SIGTERM:
3051 case SERVICE_FINAL_SIGKILL:
3053 if (!control_pid_good(s))
3054 service_enter_dead(s, f, true);
3058 assert_not_reached("Uh, main process died at wrong time.");
3062 } else if (s->control_pid == pid) {
3065 if (s->control_command) {
3066 exec_status_exit(&s->control_command->exec_status,
3067 &s->exec_context, pid, code, status);
3069 if (s->control_command->ignore)
3070 f = SERVICE_SUCCESS;
3073 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3074 "%s: control process exited, code=%s status=%i",
3075 u->id, sigchld_code_to_string(code), status);
3077 if (f != SERVICE_SUCCESS)
3080 /* Immediately get rid of the cgroup, so that the
3081 * kernel doesn't delay the cgroup empty messages for
3082 * the service cgroup any longer than necessary */
3083 service_kill_control_processes(s);
3085 if (s->control_command &&
3086 s->control_command->command_next &&
3087 f == SERVICE_SUCCESS) {
3089 /* There is another command to *
3090 * execute, so let's do that. */
3092 log_debug_unit(u->id,
3093 "%s running next control command for state %s",
3094 u->id, service_state_to_string(s->state));
3095 service_run_next_control(s);
3098 /* No further commands for this step, so let's
3099 * figure out what to do next */
3101 s->control_command = NULL;
3102 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3104 log_debug_unit(u->id,
3105 "%s got final SIGCHLD for state %s",
3106 u->id, service_state_to_string(s->state));
3110 case SERVICE_START_PRE:
3111 if (f == SERVICE_SUCCESS)
3112 service_enter_start(s);
3114 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3118 if (s->type != SERVICE_FORKING)
3119 /* Maybe spurious event due to a reload that changed the type? */
3122 if (f != SERVICE_SUCCESS) {
3123 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3128 bool has_start_post;
3131 /* Let's try to load the pid file here if we can.
3132 * The PID file might actually be created by a START_POST
3133 * script. In that case don't worry if the loading fails. */
3135 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3136 r = service_load_pid_file(s, !has_start_post);
3137 if (!has_start_post && r < 0) {
3138 r = service_demand_pid_file(s);
3139 if (r < 0 || !cgroup_good(s))
3140 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3144 service_search_main_pid(s);
3146 service_enter_start_post(s);
3149 case SERVICE_START_POST:
3150 if (f != SERVICE_SUCCESS) {
3151 service_enter_stop(s, f);
3158 r = service_load_pid_file(s, true);
3160 r = service_demand_pid_file(s);
3161 if (r < 0 || !cgroup_good(s))
3162 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3166 service_search_main_pid(s);
3168 service_enter_running(s, SERVICE_SUCCESS);
3171 case SERVICE_RELOAD:
3172 if (f == SERVICE_SUCCESS) {
3173 service_load_pid_file(s, true);
3174 service_search_main_pid(s);
3177 s->reload_result = f;
3178 service_enter_running(s, SERVICE_SUCCESS);
3182 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3185 case SERVICE_STOP_SIGTERM:
3186 case SERVICE_STOP_SIGKILL:
3187 if (main_pid_good(s) <= 0)
3188 service_enter_stop_post(s, f);
3190 /* If there is still a service
3191 * process around, wait until
3192 * that one quit, too */
3195 case SERVICE_STOP_POST:
3196 case SERVICE_FINAL_SIGTERM:
3197 case SERVICE_FINAL_SIGKILL:
3198 if (main_pid_good(s) <= 0)
3199 service_enter_dead(s, f, true);
3203 assert_not_reached("Uh, control process died at wrong time.");
3208 /* Notify clients about changed exit status */
3209 unit_add_to_dbus_queue(u);
3211 /* We got one SIGCHLD for the service, let's watch all
3212 * processes that are now running of the service, and watch
3213 * that. Among the PIDs we then watch will be children
3214 * reassigned to us, which hopefully allows us to identify
3215 * when all children are gone */
3216 unit_tidy_watch_pids(u, s->main_pid, s->control_pid);
3217 unit_watch_all_pids(u);
3219 /* If the PID set is empty now, then let's finish this off */
3220 if (set_isempty(u->pids))
3221 service_notify_cgroup_empty_event(u);
3224 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
3225 Service *s = SERVICE(userdata);
3228 assert(source == s->timer_event_source);
3232 case SERVICE_START_PRE:
3234 log_warning_unit(UNIT(s)->id,
3235 "%s %s operation timed out. Terminating.",
3237 s->state == SERVICE_START ? "start" : "start-pre");
3238 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3241 case SERVICE_START_POST:
3242 log_warning_unit(UNIT(s)->id,
3243 "%s start-post operation timed out. Stopping.", UNIT(s)->id);
3244 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3247 case SERVICE_RELOAD:
3248 log_warning_unit(UNIT(s)->id,
3249 "%s reload operation timed out. Stopping.", UNIT(s)->id);
3250 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3251 service_enter_running(s, SERVICE_SUCCESS);
3255 log_warning_unit(UNIT(s)->id,
3256 "%s stopping timed out. Terminating.", UNIT(s)->id);
3257 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3260 case SERVICE_STOP_SIGTERM:
3261 if (s->kill_context.send_sigkill) {
3262 log_warning_unit(UNIT(s)->id,
3263 "%s stop-sigterm timed out. Killing.", UNIT(s)->id);
3264 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3266 log_warning_unit(UNIT(s)->id,
3267 "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id);
3268 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3273 case SERVICE_STOP_SIGKILL:
3274 /* Uh, we sent a SIGKILL and it is still not gone?
3275 * Must be something we cannot kill, so let's just be
3276 * weirded out and continue */
3278 log_warning_unit(UNIT(s)->id,
3279 "%s still around after SIGKILL. Ignoring.", UNIT(s)->id);
3280 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3283 case SERVICE_STOP_POST:
3284 log_warning_unit(UNIT(s)->id,
3285 "%s stop-post timed out. Terminating.", UNIT(s)->id);
3286 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3289 case SERVICE_FINAL_SIGTERM:
3290 if (s->kill_context.send_sigkill) {
3291 log_warning_unit(UNIT(s)->id,
3292 "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id);
3293 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3295 log_warning_unit(UNIT(s)->id,
3296 "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.",
3298 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3303 case SERVICE_FINAL_SIGKILL:
3304 log_warning_unit(UNIT(s)->id,
3305 "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id);
3306 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3309 case SERVICE_AUTO_RESTART:
3310 log_info_unit(UNIT(s)->id,
3311 s->restart_usec > 0 ?
3312 "%s holdoff time over, scheduling restart." :
3313 "%s has no holdoff time, scheduling restart.",
3315 service_enter_restart(s);
3319 assert_not_reached("Timeout at wrong time.");
3325 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) {
3326 Service *s = SERVICE(userdata);
3329 assert(source == s->watchdog_event_source);
3331 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
3332 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG);
3337 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3338 Service *s = SERVICE(u);
3340 bool notify_dbus = false;
3344 log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)",
3345 u->id, pid, tags && *tags ? tags[0] : "(empty)");
3347 if (s->notify_access == NOTIFY_NONE) {
3348 log_warning_unit(u->id,
3349 "%s: Got notification message from PID "PID_FMT", but reception is disabled.",
3354 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3356 if (s->main_pid != 0)
3357 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);
3359 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);
3363 /* Interpret MAINPID= */
3364 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3365 (s->state == SERVICE_START ||
3366 s->state == SERVICE_START_POST ||
3367 s->state == SERVICE_RUNNING ||
3368 s->state == SERVICE_RELOAD)) {
3370 if (parse_pid(e + 8, &pid) < 0)
3371 log_warning_unit(u->id, "Failed to parse notification message %s", e);
3373 log_debug_unit(u->id, "%s: got %s", u->id, e);
3374 service_set_main_pid(s, pid);
3375 unit_watch_pid(UNIT(s), pid);
3380 /* Interpret READY= */
3381 if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) {
3382 log_debug_unit(u->id, "%s: got READY=1", u->id);
3383 service_enter_start_post(s);
3387 /* Interpret STATUS= */
3388 e = strv_find_prefix(tags, "STATUS=");
3393 if (!utf8_is_valid(e+7)) {
3394 log_warning_unit(u->id, "Status message in notification is not UTF-8 clean.");
3398 log_debug_unit(u->id, "%s: got %s", u->id, e);
3409 if (!streq_ptr(s->status_text, t)) {
3410 free(s->status_text);
3417 /* Interpret WATCHDOG= */
3418 if (strv_find(tags, "WATCHDOG=1")) {
3419 log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
3420 service_reset_watchdog(s);
3423 /* Notify clients about changed status or main pid */
3425 unit_add_to_dbus_queue(u);
3428 static int service_get_timeout(Unit *u, uint64_t *timeout) {
3429 Service *s = SERVICE(u);
3432 if (!s->timer_event_source)
3435 r = sd_event_source_get_time(s->timer_event_source, timeout);
3442 #ifdef HAVE_SYSV_COMPAT
3444 static int service_enumerate(Manager *m) {
3447 _cleanup_closedir_ DIR *d = NULL;
3448 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3449 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3450 _cleanup_set_free_ Set *shutdown_services = NULL;
3457 if (m->running_as != SYSTEMD_SYSTEM)
3460 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3461 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3465 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3476 if (errno != ENOENT)
3477 log_warning("opendir(%s) failed: %m", path);
3482 while ((de = readdir(d))) {
3485 if (ignore_file(de->d_name))
3488 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3491 if (strlen(de->d_name) < 4)
3494 a = undecchar(de->d_name[1]);
3495 b = undecchar(de->d_name[2]);
3501 fpath = strjoin(path, "/", de->d_name, NULL);
3507 if (access(fpath, X_OK) < 0) {
3509 if (errno != ENOENT)
3510 log_warning("access() failed on %s: %m", fpath);
3516 name = sysv_translate_name(de->d_name + 3);
3522 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3524 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3528 if (de->d_name[0] == 'S') {
3530 if (rcnd_table[i].type == RUNLEVEL_UP) {
3531 SERVICE(service)->sysv_start_priority_from_rcnd =
3532 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3534 SERVICE(service)->sysv_enabled = true;
3537 r = set_ensure_allocated(&runlevel_services[i],
3538 trivial_hash_func, trivial_compare_func);
3542 r = set_put(runlevel_services[i], service);
3546 } else if (de->d_name[0] == 'K' &&
3547 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3549 r = set_ensure_allocated(&shutdown_services,
3550 trivial_hash_func, trivial_compare_func);
3554 r = set_put(shutdown_services, service);
3561 /* Now we loaded all stubs and are aware of the lowest
3562 start-up priority for all services, not let's actually load
3563 the services, this will also tell us which services are
3564 actually native now */
3565 manager_dispatch_load_queue(m);
3567 /* If this is a native service, rely on native ways to pull in
3568 * a service, don't pull it in via sysv rcN.d links. */
3569 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3570 SET_FOREACH(service, runlevel_services[i], j) {
3571 service = unit_follow_merge(service);
3573 if (service->fragment_path)
3576 r = unit_add_two_dependencies_by_name_inverse(
3577 service, UNIT_AFTER, UNIT_WANTS,
3578 rcnd_table[i].target, NULL, true);
3583 /* We honour K links only for halt/reboot. For the normal
3584 * runlevels we assume the stop jobs will be implicitly added
3585 * by the core logic. Also, we don't really distinguish here
3586 * between the runlevels 0 and 6 and just add them to the
3587 * special shutdown target. */
3588 SET_FOREACH(service, shutdown_services, j) {
3589 service = unit_follow_merge(service);
3591 if (service->fragment_path)
3594 r = unit_add_two_dependencies_by_name(
3595 service, UNIT_BEFORE, UNIT_CONFLICTS,
3596 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3605 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3606 set_free(runlevel_services[i]);
3612 static void service_bus_name_owner_change(
3615 const char *old_owner,
3616 const char *new_owner) {
3618 Service *s = SERVICE(u);
3624 assert(streq(s->bus_name, name));
3625 assert(old_owner || new_owner);
3627 if (old_owner && new_owner)
3628 log_debug_unit(u->id,
3629 "%s's D-Bus name %s changed owner from %s to %s",
3630 u->id, name, old_owner, new_owner);
3632 log_debug_unit(u->id,
3633 "%s's D-Bus name %s no longer registered by %s",
3634 u->id, name, old_owner);
3636 log_debug_unit(u->id,
3637 "%s's D-Bus name %s now registered by %s",
3638 u->id, name, new_owner);
3640 s->bus_name_good = !!new_owner;
3642 if (s->type == SERVICE_DBUS) {
3644 /* service_enter_running() will figure out what to
3646 if (s->state == SERVICE_RUNNING)
3647 service_enter_running(s, SERVICE_SUCCESS);
3648 else if (s->state == SERVICE_START && new_owner)
3649 service_enter_start_post(s);
3651 } else if (new_owner &&
3653 (s->state == SERVICE_START ||
3654 s->state == SERVICE_START_POST ||
3655 s->state == SERVICE_RUNNING ||
3656 s->state == SERVICE_RELOAD)) {
3658 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
3661 /* Try to acquire PID from bus service */
3663 r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds);
3665 r = sd_bus_creds_get_pid(creds, &pid);
3667 log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3669 service_set_main_pid(s, pid);
3670 unit_watch_pid(UNIT(s), pid);
3675 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3676 _cleanup_free_ char *peer = NULL;
3682 /* This is called by the socket code when instantiating a new
3683 * service for a stream socket and the socket needs to be
3686 if (UNIT(s)->load_state != UNIT_LOADED)
3689 if (s->socket_fd >= 0)
3692 if (s->state != SERVICE_DEAD)
3695 if (getpeername_pretty(fd, &peer) >= 0) {
3697 if (UNIT(s)->description) {
3698 _cleanup_free_ char *a;
3700 a = strjoin(UNIT(s)->description, " (", peer, ")", NULL);
3704 r = unit_set_description(UNIT(s), a);
3706 r = unit_set_description(UNIT(s), peer);
3714 unit_ref_set(&s->accept_socket, UNIT(sock));
3716 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3719 static void service_reset_failed(Unit *u) {
3720 Service *s = SERVICE(u);
3724 if (s->state == SERVICE_FAILED)
3725 service_set_state(s, SERVICE_DEAD);
3727 s->result = SERVICE_SUCCESS;
3728 s->reload_result = SERVICE_SUCCESS;
3730 RATELIMIT_RESET(s->start_limit);
3733 static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
3734 Service *s = SERVICE(u);
3736 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3739 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3740 [SERVICE_DEAD] = "dead",
3741 [SERVICE_START_PRE] = "start-pre",
3742 [SERVICE_START] = "start",
3743 [SERVICE_START_POST] = "start-post",
3744 [SERVICE_RUNNING] = "running",
3745 [SERVICE_EXITED] = "exited",
3746 [SERVICE_RELOAD] = "reload",
3747 [SERVICE_STOP] = "stop",
3748 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3749 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3750 [SERVICE_STOP_POST] = "stop-post",
3751 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3752 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3753 [SERVICE_FAILED] = "failed",
3754 [SERVICE_AUTO_RESTART] = "auto-restart",
3757 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3759 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3760 [SERVICE_RESTART_NO] = "no",
3761 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3762 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3763 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3764 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3765 [SERVICE_RESTART_ALWAYS] = "always"
3768 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3770 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3771 [SERVICE_SIMPLE] = "simple",
3772 [SERVICE_FORKING] = "forking",
3773 [SERVICE_ONESHOT] = "oneshot",
3774 [SERVICE_DBUS] = "dbus",
3775 [SERVICE_NOTIFY] = "notify",
3776 [SERVICE_IDLE] = "idle"
3779 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3781 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3782 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3783 [SERVICE_EXEC_START] = "ExecStart",
3784 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3785 [SERVICE_EXEC_RELOAD] = "ExecReload",
3786 [SERVICE_EXEC_STOP] = "ExecStop",
3787 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3790 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3792 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3793 [NOTIFY_NONE] = "none",
3794 [NOTIFY_MAIN] = "main",
3795 [NOTIFY_ALL] = "all"
3798 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3800 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3801 [SERVICE_SUCCESS] = "success",
3802 [SERVICE_FAILURE_RESOURCES] = "resources",
3803 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3804 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3805 [SERVICE_FAILURE_SIGNAL] = "signal",
3806 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3807 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3808 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3811 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3813 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3814 [SERVICE_START_LIMIT_NONE] = "none",
3815 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3816 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3817 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3819 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3821 const UnitVTable service_vtable = {
3822 .object_size = sizeof(Service),
3823 .exec_context_offset = offsetof(Service, exec_context),
3824 .cgroup_context_offset = offsetof(Service, cgroup_context),
3825 .kill_context_offset = offsetof(Service, kill_context),
3826 .exec_runtime_offset = offsetof(Service, exec_runtime),
3832 .private_section = "Service",
3834 .init = service_init,
3835 .done = service_done,
3836 .load = service_load,
3838 .coldplug = service_coldplug,
3840 .dump = service_dump,
3842 .start = service_start,
3843 .stop = service_stop,
3844 .reload = service_reload,
3846 .can_reload = service_can_reload,
3848 .kill = service_kill,
3850 .serialize = service_serialize,
3851 .deserialize_item = service_deserialize_item,
3853 .active_state = service_active_state,
3854 .sub_state_to_string = service_sub_state_to_string,
3856 .check_gc = service_check_gc,
3857 .check_snapshot = service_check_snapshot,
3859 .sigchld_event = service_sigchld_event,
3861 .reset_failed = service_reset_failed,
3863 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3864 .notify_message = service_notify_message,
3866 .bus_name_owner_change = service_bus_name_owner_change,
3868 .bus_interface = "org.freedesktop.systemd1.Service",
3869 .bus_vtable = bus_service_vtable,
3870 .bus_set_property = bus_service_set_property,
3871 .bus_commit_properties = bus_service_commit_properties,
3873 .get_timeout = service_get_timeout,
3875 #ifdef HAVE_SYSV_COMPAT
3876 .enumerate = service_enumerate,
3879 .can_transient = true,
3881 .status_message_formats = {
3882 .starting_stopping = {
3883 [0] = "Starting %s...",
3884 [1] = "Stopping %s...",
3886 .finished_start_job = {
3887 [JOB_DONE] = "Started %s.",
3888 [JOB_FAILED] = "Failed to start %s.",
3889 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3890 [JOB_TIMEOUT] = "Timed out starting %s.",
3892 .finished_stop_job = {
3893 [JOB_DONE] = "Stopped %s.",
3894 [JOB_FAILED] = "Stopped (with error) %s.",
3895 [JOB_TIMEOUT] = "Timed out stopping %s.",