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 RATELIMIT_INIT(s->start_limit,
151 u->manager->default_start_limit_interval,
152 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 close_nointr_nofail(s->socket_fd);
233 static void service_connection_unref(Service *s) {
236 if (!UNIT_ISSET(s->accept_socket))
239 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
240 unit_ref_unset(&s->accept_socket);
243 static void service_stop_watchdog(Service *s) {
246 s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source);
247 s->watchdog_timestamp = DUAL_TIMESTAMP_NULL;
250 static void service_start_watchdog(Service *s) {
255 if (s->watchdog_usec <= 0)
258 if (s->watchdog_event_source) {
259 r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec);
261 log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r));
265 r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT);
267 r = sd_event_add_monotonic(UNIT(s)->manager->event, s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, service_dispatch_watchdog, s, &s->watchdog_event_source);
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;
305 cgroup_context_done(&s->cgroup_context);
306 exec_context_done(&s->exec_context);
307 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
308 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
309 s->control_command = NULL;
310 s->main_command = NULL;
312 set_free(s->restart_ignore_status.code);
313 s->restart_ignore_status.code = NULL;
314 set_free(s->restart_ignore_status.signal);
315 s->restart_ignore_status.signal = NULL;
317 set_free(s->success_status.code);
318 s->success_status.code = NULL;
319 set_free(s->success_status.signal);
320 s->success_status.signal = NULL;
322 /* This will leak a process, but at least no memory or any of
324 service_unwatch_main_pid(s);
325 service_unwatch_control_pid(s);
326 service_unwatch_pid_file(s);
329 unit_unwatch_bus_name(u, s->bus_name);
334 service_close_socket_fd(s);
335 service_connection_unref(s);
337 unit_ref_unset(&s->accept_socket);
339 service_stop_watchdog(s);
341 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
344 static int service_arm_timer(Service *s, usec_t usec) {
349 if (s->timer_event_source) {
350 r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec);
354 return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
357 return sd_event_add_monotonic(UNIT(s)->manager->event, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s, &s->timer_event_source);
360 #ifdef HAVE_SYSV_COMPAT
361 static char *sysv_translate_name(const char *name) {
364 r = new(char, strlen(name) + sizeof(".service"));
368 if (endswith(name, ".sh"))
369 /* Drop .sh suffix */
370 strcpy(stpcpy(r, name) - 3, ".service");
372 /* Normal init script name */
373 strcpy(stpcpy(r, name), ".service");
378 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
380 /* We silently ignore the $ prefix here. According to the LSB
381 * spec it simply indicates whether something is a
382 * standardized name or a distribution-specific one. Since we
383 * just follow what already exists and do not introduce new
384 * uses or names we don't care who introduced a new name. */
386 static const char * const table[] = {
387 /* LSB defined facilities */
389 "network", SPECIAL_NETWORK_TARGET,
390 "named", SPECIAL_NSS_LOOKUP_TARGET,
391 "portmap", SPECIAL_RPCBIND_TARGET,
392 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
394 "time", SPECIAL_TIME_SYNC_TARGET,
404 n = *name == '$' ? name + 1 : name;
406 for (i = 0; i < ELEMENTSOF(table); i += 2) {
408 if (!streq(table[i], n))
414 r = strdup(table[i+1]);
421 /* If we don't know this name, fallback heuristics to figure
422 * out whether something is a target or a service alias. */
425 if (!unit_prefix_is_valid(n))
428 /* Facilities starting with $ are most likely targets */
429 r = unit_name_build(n, NULL, ".target");
430 } else if (filename && streq(name, filename))
431 /* Names equaling the file name of the services are redundant */
434 /* Everything else we assume to be normal service names */
435 r = sysv_translate_name(n);
446 static int sysv_fix_order(Service *s) {
452 if (s->sysv_start_priority < 0)
455 /* For each pair of services where at least one lacks a LSB
456 * header, we use the start priority value to order things. */
458 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
461 bool special_s, special_t;
468 if (UNIT(t)->load_state != UNIT_LOADED)
471 if (t->sysv_start_priority < 0)
474 /* If both units have modern headers we don't care
475 * about the priorities */
476 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
477 (UNIT(t)->fragment_path || t->sysv_has_lsb))
480 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
481 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
483 if (special_t && !special_s)
485 else if (special_s && !special_t)
487 else if (t->sysv_start_priority < s->sysv_start_priority)
489 else if (t->sysv_start_priority > s->sysv_start_priority)
494 /* FIXME: Maybe we should compare the name here lexicographically? */
496 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
503 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
506 if (!(c = new0(ExecCommand, 1)))
509 if (!(c->path = strdup(path))) {
514 if (!(c->argv = strv_new(path, arg1, NULL))) {
523 static int sysv_exec_commands(Service *s, const bool supports_reload) {
528 assert(UNIT(s)->source_path);
530 c = exec_command_new(UNIT(s)->source_path, "start");
533 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
535 c = exec_command_new(UNIT(s)->source_path, "stop");
538 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
540 if (supports_reload) {
541 c = exec_command_new(UNIT(s)->source_path, "reload");
544 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
550 static bool usage_contains_reload(const char *line) {
551 return (strcasestr(line, "{reload|") ||
552 strcasestr(line, "{reload}") ||
553 strcasestr(line, "{reload\"") ||
554 strcasestr(line, "|reload|") ||
555 strcasestr(line, "|reload}") ||
556 strcasestr(line, "|reload\""));
559 static int service_load_sysv_path(Service *s, const char *path) {
571 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
573 bool supports_reload = false;
580 f = fopen(path, "re");
582 r = errno == ENOENT ? 0 : -errno;
586 if (fstat(fileno(f), &st) < 0) {
591 free(u->source_path);
592 u->source_path = strdup(path);
593 if (!u->source_path) {
597 u->source_mtime = timespec_load(&st.st_mtim);
599 if (null_or_empty(&st)) {
600 u->load_state = UNIT_MASKED;
608 char l[LINE_MAX], *t;
610 if (!fgets(l, sizeof(l), f)) {
615 log_error_unit(u->id,
616 "Failed to read configuration file '%s': %s",
625 /* Try to figure out whether this init script supports
626 * the reload operation. This heuristic looks for
627 * "Usage" lines which include the reload option. */
628 if ( state == USAGE_CONTINUATION ||
629 (state == NORMAL && strcasestr(t, "usage"))) {
630 if (usage_contains_reload(t)) {
631 supports_reload = true;
633 } else if (t[strlen(t)-1] == '\\')
634 state = USAGE_CONTINUATION;
642 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
644 s->sysv_has_lsb = true;
648 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
654 t += strspn(t, WHITESPACE);
656 if (state == NORMAL) {
658 /* Try to parse Red Hat style chkconfig headers */
660 if (startswith_no_case(t, "chkconfig:")) {
662 char runlevels[16], *k;
666 if (sscanf(t+10, "%15s %i %*i",
668 &start_priority) != 2) {
670 log_warning_unit(u->id,
671 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
676 /* A start priority gathered from the
677 * symlink farms is preferred over the
678 * data from the LSB header. */
679 if (start_priority < 0 || start_priority > 99)
680 log_warning_unit(u->id,
681 "[%s:%u] Start priority out of range. Ignoring.",
684 s->sysv_start_priority = start_priority;
686 char_array_0(runlevels);
687 k = delete_chars(runlevels, WHITESPACE "-");
692 if (!(d = strdup(k))) {
697 free(s->sysv_runlevels);
698 s->sysv_runlevels = d;
701 } else if (startswith_no_case(t, "description:")) {
703 size_t k = strlen(t);
707 if (t[k-1] == '\\') {
712 if ((j = strstrip(t+12)) && *j) {
713 if (!(d = strdup(j))) {
720 free(chkconfig_description);
721 chkconfig_description = d;
723 } else if (startswith_no_case(t, "pidfile:")) {
730 if (!path_is_absolute(fn)) {
731 log_warning_unit(u->id,
732 "[%s:%u] PID file not absolute. Ignoring.",
737 if (!(fn = strdup(fn))) {
746 } else if (state == DESCRIPTION) {
748 /* Try to parse Red Hat style description
751 size_t k = strlen(t);
759 if ((j = strstrip(t)) && *j) {
762 if (chkconfig_description)
763 d = strjoin(chkconfig_description, " ", j, NULL);
772 free(chkconfig_description);
773 chkconfig_description = d;
776 } else if (state == LSB || state == LSB_DESCRIPTION) {
778 if (startswith_no_case(t, "Provides:")) {
784 FOREACH_WORD_QUOTED(w, z, t+9, i) {
787 if (!(n = strndup(w, z))) {
792 r = sysv_translate_facility(n, basename(path), &m);
801 if (unit_name_to_type(m) == UNIT_SERVICE)
802 r = unit_merge_by_name(u, m);
809 * indication that the
811 * now available. This
814 * targets do NOT pull
817 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
820 log_error_unit(u->id,
821 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
822 path, line, m, strerror(-r));
827 } else if (startswith_no_case(t, "Required-Start:") ||
828 startswith_no_case(t, "Should-Start:") ||
829 startswith_no_case(t, "X-Start-Before:") ||
830 startswith_no_case(t, "X-Start-After:")) {
836 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
839 if (!(n = strndup(w, z))) {
844 r = sysv_translate_facility(n, basename(path), &m);
846 log_error_unit(u->id,
847 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
848 path, line, n, strerror(-r));
858 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
861 log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
862 path, line, m, strerror(-r));
866 } else if (startswith_no_case(t, "Default-Start:")) {
871 k = delete_chars(t+14, WHITESPACE "-");
874 if (!(d = strdup(k))) {
879 free(s->sysv_runlevels);
880 s->sysv_runlevels = d;
883 } else if (startswith_no_case(t, "Description:")) {
886 state = LSB_DESCRIPTION;
888 if ((j = strstrip(t+12)) && *j) {
889 if (!(d = strdup(j))) {
896 free(long_description);
897 long_description = d;
899 } else if (startswith_no_case(t, "Short-Description:")) {
904 if ((j = strstrip(t+18)) && *j) {
905 if (!(d = strdup(j))) {
912 free(short_description);
913 short_description = d;
915 } else if (state == LSB_DESCRIPTION) {
917 if (startswith(l, "#\t") || startswith(l, "# ")) {
920 if ((j = strstrip(t)) && *j) {
923 if (long_description)
924 d = strjoin(long_description, " ", t, NULL);
933 free(long_description);
934 long_description = d;
943 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
946 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
947 /* If there a runlevels configured for this service
948 * but none of the standard ones, then we assume this
949 * is some special kind of service (which might be
950 * needed for early boot) and don't create any links
953 UNIT(s)->default_dependencies = false;
955 /* Don't timeout special services during boot (like fsck) */
956 s->timeout_start_usec = 0;
957 s->timeout_stop_usec = 0;
959 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
960 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
963 /* Special setting for all SysV services */
964 s->type = SERVICE_FORKING;
965 s->remain_after_exit = !s->pid_file;
966 s->guess_main_pid = false;
967 s->restart = SERVICE_RESTART_NO;
968 s->exec_context.ignore_sigpipe = false;
969 s->kill_context.kill_mode = KILL_PROCESS;
971 /* We use the long description only if
972 * no short description is set. */
974 if (short_description)
975 description = short_description;
976 else if (chkconfig_description)
977 description = chkconfig_description;
978 else if (long_description)
979 description = long_description;
986 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
994 /* The priority that has been set in /etc/rcN.d/ hierarchies
995 * takes precedence over what is stored as default in the LSB
997 if (s->sysv_start_priority_from_rcnd >= 0)
998 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
1000 u->load_state = UNIT_LOADED;
1008 free(short_description);
1009 free(long_description);
1010 free(chkconfig_description);
1015 static int service_load_sysv_name(Service *s, const char *name) {
1021 /* For SysV services we strip the *.sh suffixes. */
1022 if (endswith(name, ".sh.service"))
1025 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
1029 path = strjoin(*p, "/", name, NULL);
1033 assert(endswith(path, ".service"));
1034 path[strlen(path)-8] = 0;
1036 r = service_load_sysv_path(s, path);
1038 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1039 /* Try *.sh source'able init scripts */
1040 strcat(path, ".sh");
1041 r = service_load_sysv_path(s, path);
1048 if (UNIT(s)->load_state != UNIT_STUB)
1055 static int service_load_sysv(Service *s) {
1062 /* Load service data from SysV init scripts, preferably with
1063 * LSB headers ... */
1065 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1068 if ((t = UNIT(s)->id))
1069 if ((r = service_load_sysv_name(s, t)) < 0)
1072 if (UNIT(s)->load_state == UNIT_STUB)
1073 SET_FOREACH(t, UNIT(s)->names, i) {
1074 if (t == UNIT(s)->id)
1077 if ((r = service_load_sysv_name(s, t)) < 0)
1080 if (UNIT(s)->load_state != UNIT_STUB)
1088 static int service_verify(Service *s) {
1091 if (UNIT(s)->load_state != UNIT_LOADED)
1094 if (!s->exec_command[SERVICE_EXEC_START]) {
1095 log_error_unit(UNIT(s)->id,
1096 "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1100 if (s->type != SERVICE_ONESHOT &&
1101 s->exec_command[SERVICE_EXEC_START]->command_next) {
1102 log_error_unit(UNIT(s)->id,
1103 "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1107 if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) {
1108 log_error_unit(UNIT(s)->id,
1109 "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1113 if (s->type == SERVICE_DBUS && !s->bus_name) {
1114 log_error_unit(UNIT(s)->id,
1115 "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1119 if (s->bus_name && s->type != SERVICE_DBUS)
1120 log_warning_unit(UNIT(s)->id,
1121 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1123 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1124 log_error_unit(UNIT(s)->id,
1125 "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1132 static int service_add_default_dependencies(Service *s) {
1137 /* Add a number of automatic dependencies useful for the
1138 * majority of services. */
1140 /* First, pull in base system */
1141 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1142 SPECIAL_BASIC_TARGET, NULL, true);
1146 /* Second, activate normal shutdown */
1147 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1148 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1152 static void service_fix_output(Service *s) {
1155 /* If nothing has been explicitly configured, patch default
1156 * output in. If input is socket/tty we avoid this however,
1157 * since in that case we want output to default to the same
1158 * place as we read input from. */
1160 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1161 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1162 s->exec_context.std_input == EXEC_INPUT_NULL)
1163 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1165 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1166 s->exec_context.std_input == EXEC_INPUT_NULL)
1167 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1170 static int service_load(Unit *u) {
1172 Service *s = SERVICE(u);
1176 /* Load a .service file */
1177 r = unit_load_fragment(u);
1181 #ifdef HAVE_SYSV_COMPAT
1182 /* Load a classic init script as a fallback, if we couldn't find anything */
1183 if (u->load_state == UNIT_STUB) {
1184 r = service_load_sysv(s);
1190 /* Still nothing found? Then let's give up */
1191 if (u->load_state == UNIT_STUB)
1194 /* This is a new unit? Then let's add in some extras */
1195 if (u->load_state == UNIT_LOADED) {
1197 /* We were able to load something, then let's add in
1198 * the dropin directories. */
1199 r = unit_load_dropin(u);
1203 if (s->type == _SERVICE_TYPE_INVALID)
1204 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1206 /* Oneshot services have disabled start timeout by default */
1207 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1208 s->timeout_start_usec = 0;
1210 service_fix_output(s);
1212 r = unit_add_exec_dependencies(u, &s->exec_context);
1216 r = unit_add_default_slice(u);
1220 #ifdef HAVE_SYSV_COMPAT
1221 r = sysv_fix_order(s);
1227 r = unit_watch_bus_name(u, s->bus_name);
1232 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1233 s->notify_access = NOTIFY_MAIN;
1235 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1236 s->notify_access = NOTIFY_MAIN;
1238 if (UNIT(s)->default_dependencies) {
1239 r = service_add_default_dependencies(s);
1244 r = unit_exec_context_defaults(u, &s->exec_context);
1249 return service_verify(s);
1252 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1254 ServiceExecCommand c;
1255 Service *s = SERVICE(u);
1256 const char *prefix2;
1257 _cleanup_free_ char *p2 = NULL;
1261 p2 = strappend(prefix, "\t");
1262 prefix2 = p2 ? p2 : prefix;
1265 "%sService State: %s\n"
1267 "%sReload Result: %s\n"
1268 "%sPermissionsStartOnly: %s\n"
1269 "%sRootDirectoryStartOnly: %s\n"
1270 "%sRemainAfterExit: %s\n"
1271 "%sGuessMainPID: %s\n"
1274 "%sNotifyAccess: %s\n",
1275 prefix, service_state_to_string(s->state),
1276 prefix, service_result_to_string(s->result),
1277 prefix, service_result_to_string(s->reload_result),
1278 prefix, yes_no(s->permissions_start_only),
1279 prefix, yes_no(s->root_directory_start_only),
1280 prefix, yes_no(s->remain_after_exit),
1281 prefix, yes_no(s->guess_main_pid),
1282 prefix, service_type_to_string(s->type),
1283 prefix, service_restart_to_string(s->restart),
1284 prefix, notify_access_to_string(s->notify_access));
1286 if (s->control_pid > 0)
1288 "%sControl PID: "PID_FMT"\n",
1289 prefix, s->control_pid);
1291 if (s->main_pid > 0)
1293 "%sMain PID: "PID_FMT"\n"
1294 "%sMain PID Known: %s\n"
1295 "%sMain PID Alien: %s\n",
1296 prefix, s->main_pid,
1297 prefix, yes_no(s->main_pid_known),
1298 prefix, yes_no(s->main_pid_alien));
1303 prefix, s->pid_file);
1308 "%sBus Name Good: %s\n",
1309 prefix, s->bus_name,
1310 prefix, yes_no(s->bus_name_good));
1312 kill_context_dump(&s->kill_context, f, prefix);
1313 exec_context_dump(&s->exec_context, f, prefix);
1315 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1317 if (!s->exec_command[c])
1320 fprintf(f, "%s-> %s:\n",
1321 prefix, service_exec_command_to_string(c));
1323 exec_command_dump_list(s->exec_command[c], f, prefix2);
1326 #ifdef HAVE_SYSV_COMPAT
1329 "%sSysV Init Script has LSB Header: %s\n"
1330 "%sSysVEnabled: %s\n",
1331 prefix, yes_no(s->sysv_has_lsb),
1332 prefix, yes_no(s->sysv_enabled));
1334 if (s->sysv_start_priority >= 0)
1336 "%sSysVStartPriority: %i\n",
1337 prefix, s->sysv_start_priority);
1339 if (s->sysv_runlevels)
1340 fprintf(f, "%sSysVRunLevels: %s\n",
1341 prefix, s->sysv_runlevels);
1345 fprintf(f, "%sStatus Text: %s\n",
1346 prefix, s->status_text);
1349 static int service_load_pid_file(Service *s, bool may_warn) {
1350 _cleanup_free_ char *k = NULL;
1359 r = read_one_line_file(s->pid_file, &k);
1362 log_info_unit(UNIT(s)->id,
1363 "PID file %s not readable (yet?) after %s.",
1364 s->pid_file, service_state_to_string(s->state));
1368 r = parse_pid(k, &pid);
1371 log_info_unit(UNIT(s)->id,
1372 "Failed to read PID from file %s: %s",
1373 s->pid_file, strerror(-r));
1377 if (kill(pid, 0) < 0 && errno != EPERM) {
1379 log_info_unit(UNIT(s)->id,
1380 "PID "PID_FMT" read from file %s does not exist.",
1385 if (s->main_pid_known) {
1386 if (pid == s->main_pid)
1389 log_debug_unit(UNIT(s)->id,
1390 "Main PID changing: "PID_FMT" -> "PID_FMT,
1392 service_unwatch_main_pid(s);
1393 s->main_pid_known = false;
1395 log_debug_unit(UNIT(s)->id,
1396 "Main PID loaded: "PID_FMT, pid);
1398 r = service_set_main_pid(s, pid);
1402 r = unit_watch_pid(UNIT(s), pid);
1404 /* FIXME: we need to do something here */
1405 log_warning_unit(UNIT(s)->id,
1406 "Failed to watch PID "PID_FMT" from service %s",
1414 static int service_search_main_pid(Service *s) {
1420 /* If we know it anyway, don't ever fallback to unreliable
1422 if (s->main_pid_known)
1425 if (!s->guess_main_pid)
1428 assert(s->main_pid <= 0);
1430 pid = unit_search_main_pid(UNIT(s));
1434 log_debug_unit(UNIT(s)->id,
1435 "Main PID guessed: "PID_FMT, pid);
1436 r = service_set_main_pid(s, pid);
1440 r = unit_watch_pid(UNIT(s), pid);
1442 /* FIXME: we need to do something here */
1443 log_warning_unit(UNIT(s)->id,
1444 "Failed to watch PID "PID_FMT" from service %s",
1451 static void service_set_state(Service *s, ServiceState state) {
1452 ServiceState old_state;
1453 const UnitActiveState *table;
1457 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1459 old_state = s->state;
1462 service_unwatch_pid_file(s);
1465 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1467 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1469 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
1470 SERVICE_AUTO_RESTART))
1471 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1474 SERVICE_START, SERVICE_START_POST,
1475 SERVICE_RUNNING, SERVICE_RELOAD,
1476 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1478 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1479 service_unwatch_main_pid(s);
1480 s->main_command = NULL;
1484 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1486 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1488 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1489 service_unwatch_control_pid(s);
1490 s->control_command = NULL;
1491 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1495 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1496 SERVICE_RUNNING, SERVICE_RELOAD,
1497 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
1498 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
1499 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1500 service_close_socket_fd(s);
1501 service_connection_unref(s);
1504 if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1505 service_stop_watchdog(s);
1507 /* For the inactive states unit_notify() will trim the cgroup,
1508 * but for exit we have to do that ourselves... */
1509 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1510 unit_destroy_cgroup(UNIT(s));
1512 /* For remain_after_exit services, let's see if we can "release" the
1513 * hold on the console, since unit_notify() only does that in case of
1514 * change of state */
1515 if (state == SERVICE_EXITED && s->remain_after_exit &&
1516 UNIT(s)->manager->n_on_console > 0) {
1517 ExecContext *ec = unit_get_exec_context(UNIT(s));
1518 if (ec && exec_context_may_touch_console(ec)) {
1519 Manager *m = UNIT(s)->manager;
1522 if (m->n_on_console == 0)
1523 /* unset no_console_output flag, since the console is free */
1524 m->no_console_output = false;
1528 if (old_state != state)
1529 log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1531 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1532 s->reload_result = SERVICE_SUCCESS;
1535 static int service_coldplug(Unit *u) {
1536 Service *s = SERVICE(u);
1540 assert(s->state == SERVICE_DEAD);
1542 if (s->deserialized_state != s->state) {
1544 if (IN_SET(s->deserialized_state,
1545 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1547 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1549 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1553 k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec;
1555 /* For the start/stop timeouts 0 means off */
1557 r = service_arm_timer(s, k);
1563 if (s->deserialized_state == SERVICE_AUTO_RESTART) {
1565 /* The restart timeouts 0 means immediately */
1566 r = service_arm_timer(s, s->restart_usec);
1571 if (pid_valid(s->main_pid) &&
1572 ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) ||
1573 IN_SET(s->deserialized_state,
1574 SERVICE_START, SERVICE_START_POST,
1575 SERVICE_RUNNING, SERVICE_RELOAD,
1576 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1578 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
1579 r = unit_watch_pid(UNIT(s), s->main_pid);
1584 if (pid_valid(s->control_pid) &&
1585 IN_SET(s->deserialized_state,
1586 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1588 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1590 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1591 r = unit_watch_pid(UNIT(s), s->control_pid);
1596 if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1597 service_start_watchdog(s);
1599 service_set_state(s, s->deserialized_state);
1605 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1609 unsigned rn_fds = 0;
1616 if (s->socket_fd >= 0)
1619 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1624 if (u->type != UNIT_SOCKET)
1629 r = socket_collect_fds(sock, &cfds, &cn_fds);
1642 t = new(int, rn_fds+cn_fds);
1649 memcpy(t, rfds, rn_fds * sizeof(int));
1650 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1655 rn_fds = rn_fds+cn_fds;
1670 static int service_spawn(
1675 bool apply_permissions,
1677 bool apply_tty_stdin,
1678 bool set_notify_socket,
1685 _cleanup_free_ int *fdsbuf = NULL;
1686 unsigned n_fds = 0, n_env = 0;
1687 _cleanup_strv_free_ char
1688 **argv = NULL, **final_env = NULL, **our_env = NULL;
1695 unit_realize_cgroup(UNIT(s));
1697 r = unit_setup_exec_runtime(UNIT(s));
1702 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1703 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1704 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1706 if (s->socket_fd >= 0) {
1707 fds = &s->socket_fd;
1710 r = service_collect_fds(s, &fdsbuf, &n_fds);
1718 if (timeout && s->timeout_start_usec > 0) {
1719 r = service_arm_timer(s, s->timeout_start_usec);
1723 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1725 r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
1729 our_env = new0(char*, 4);
1735 if (set_notify_socket)
1736 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1741 if (s->main_pid > 0)
1742 if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) {
1747 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1748 if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) {
1753 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1759 if (is_control && UNIT(s)->cgroup_path) {
1760 path = strappenda(UNIT(s)->cgroup_path, "/control");
1761 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1763 path = UNIT(s)->cgroup_path;
1773 UNIT(s)->manager->confirm_spawn,
1774 UNIT(s)->manager->cgroup_supported,
1778 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1784 r = unit_watch_pid(UNIT(s), pid);
1786 /* FIXME: we need to do something here */
1795 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1800 static int main_pid_good(Service *s) {
1803 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1806 /* If we know the pid file, then lets just check if it is
1808 if (s->main_pid_known) {
1810 /* If it's an alien child let's check if it is still
1812 if (s->main_pid_alien && s->main_pid > 0)
1813 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1815 /* .. otherwise assume we'll get a SIGCHLD for it,
1816 * which we really should wait for to collect exit
1817 * status and code */
1818 return s->main_pid > 0;
1821 /* We don't know the pid */
1825 _pure_ static int control_pid_good(Service *s) {
1828 return s->control_pid > 0;
1831 static int cgroup_good(Service *s) {
1836 if (!UNIT(s)->cgroup_path)
1839 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1846 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1850 if (f != SERVICE_SUCCESS)
1853 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1855 if (allow_restart &&
1856 !s->forbid_restart &&
1857 (s->restart == SERVICE_RESTART_ALWAYS ||
1858 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1859 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1860 (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) ||
1861 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1862 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1863 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1864 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1865 (s->result != SERVICE_FAILURE_SIGNAL ||
1866 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) {
1868 r = service_arm_timer(s, s->restart_usec);
1872 service_set_state(s, SERVICE_AUTO_RESTART);
1875 s->forbid_restart = false;
1877 /* we want fresh tmpdirs in case service is started again immediately */
1878 exec_runtime_destroy(s->exec_runtime);
1879 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
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);
1905 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1906 if (s->control_command) {
1907 s->control_command_id = SERVICE_EXEC_STOP_POST;
1909 r = service_spawn(s,
1913 !s->permissions_start_only,
1914 !s->root_directory_start_only,
1923 service_set_state(s, SERVICE_STOP_POST);
1925 service_enter_dead(s, SERVICE_SUCCESS, true);
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 r = unit_kill_context(
1947 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
1955 if (s->timeout_stop_usec > 0) {
1956 r = service_arm_timer(s, s->timeout_stop_usec);
1961 service_set_state(s, state);
1962 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1963 service_enter_stop_post(s, SERVICE_SUCCESS);
1965 service_enter_dead(s, SERVICE_SUCCESS, true);
1970 log_warning_unit(UNIT(s)->id,
1971 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
1973 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1974 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
1976 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
1979 static void service_enter_stop(Service *s, ServiceResult f) {
1984 if (f != SERVICE_SUCCESS)
1987 service_unwatch_control_pid(s);
1989 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
1990 if (s->control_command) {
1991 s->control_command_id = SERVICE_EXEC_STOP;
1993 r = service_spawn(s,
1997 !s->permissions_start_only,
1998 !s->root_directory_start_only,
2006 service_set_state(s, SERVICE_STOP);
2008 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2013 log_warning_unit(UNIT(s)->id,
2014 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2015 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2018 static void service_enter_running(Service *s, ServiceResult f) {
2019 int main_pid_ok, cgroup_ok;
2022 if (f != SERVICE_SUCCESS)
2025 main_pid_ok = main_pid_good(s);
2026 cgroup_ok = cgroup_good(s);
2028 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2029 (s->bus_name_good || s->type != SERVICE_DBUS))
2030 service_set_state(s, SERVICE_RUNNING);
2031 else if (s->remain_after_exit)
2032 service_set_state(s, SERVICE_EXITED);
2034 service_enter_stop(s, SERVICE_SUCCESS);
2037 static void service_enter_start_post(Service *s) {
2041 service_unwatch_control_pid(s);
2042 service_reset_watchdog(s);
2044 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2045 if (s->control_command) {
2046 s->control_command_id = SERVICE_EXEC_START_POST;
2048 r = service_spawn(s,
2052 !s->permissions_start_only,
2053 !s->root_directory_start_only,
2061 service_set_state(s, SERVICE_START_POST);
2063 service_enter_running(s, SERVICE_SUCCESS);
2068 log_warning_unit(UNIT(s)->id,
2069 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2070 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2073 static void service_kill_control_processes(Service *s) {
2076 if (!UNIT(s)->cgroup_path)
2079 p = strappenda(UNIT(s)->cgroup_path, "/control");
2080 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
2083 static void service_enter_start(Service *s) {
2090 assert(s->exec_command[SERVICE_EXEC_START]);
2091 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2093 service_unwatch_control_pid(s);
2094 service_unwatch_main_pid(s);
2096 /* We want to ensure that nobody leaks processes from
2097 * START_PRE here, so let's go on a killing spree, People
2098 * should not spawn long running processes from START_PRE. */
2099 service_kill_control_processes(s);
2101 if (s->type == SERVICE_FORKING) {
2102 s->control_command_id = SERVICE_EXEC_START;
2103 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2105 s->main_command = NULL;
2107 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2108 s->control_command = NULL;
2110 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2113 r = service_spawn(s,
2115 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2116 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2121 s->notify_access != NOTIFY_NONE,
2127 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2128 /* For simple services we immediately start
2129 * the START_POST binaries. */
2131 service_set_main_pid(s, pid);
2132 service_enter_start_post(s);
2134 } else if (s->type == SERVICE_FORKING) {
2136 /* For forking services we wait until the start
2137 * process exited. */
2139 s->control_pid = pid;
2140 service_set_state(s, SERVICE_START);
2142 } else if (s->type == SERVICE_ONESHOT ||
2143 s->type == SERVICE_DBUS ||
2144 s->type == SERVICE_NOTIFY) {
2146 /* For oneshot services we wait until the start
2147 * process exited, too, but it is our main process. */
2149 /* For D-Bus services we know the main pid right away,
2150 * but wait for the bus name to appear on the
2151 * bus. Notify services are similar. */
2153 service_set_main_pid(s, pid);
2154 service_set_state(s, SERVICE_START);
2156 assert_not_reached("Unknown service type");
2161 log_warning_unit(UNIT(s)->id,
2162 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2163 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2166 static void service_enter_start_pre(Service *s) {
2171 service_unwatch_control_pid(s);
2173 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2174 if (s->control_command) {
2175 /* Before we start anything, let's clear up what might
2176 * be left from previous runs. */
2177 service_kill_control_processes(s);
2179 s->control_command_id = SERVICE_EXEC_START_PRE;
2181 r = service_spawn(s,
2185 !s->permissions_start_only,
2186 !s->root_directory_start_only,
2194 service_set_state(s, SERVICE_START_PRE);
2196 service_enter_start(s);
2201 log_warning_unit(UNIT(s)->id,
2202 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2203 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2206 static void service_enter_restart(Service *s) {
2207 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2212 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2213 /* Don't restart things if we are going down anyway */
2214 log_info_unit(UNIT(s)->id,
2215 "Stop job pending for unit, delaying automatic restart.");
2217 r = service_arm_timer(s, s->restart_usec);
2224 /* Any units that are bound to this service must also be
2225 * restarted. We use JOB_RESTART (instead of the more obvious
2226 * JOB_START) here so that those dependency jobs will be added
2228 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2232 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2233 * it will be canceled as part of the service_stop() call that
2234 * is executed as part of JOB_RESTART. */
2236 log_debug_unit(UNIT(s)->id,
2237 "%s scheduled restart job.", UNIT(s)->id);
2241 log_warning_unit(UNIT(s)->id,
2242 "%s failed to schedule restart job: %s",
2243 UNIT(s)->id, bus_error_message(&error, -r));
2244 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2247 static void service_enter_reload(Service *s) {
2252 service_unwatch_control_pid(s);
2254 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2255 if (s->control_command) {
2256 s->control_command_id = SERVICE_EXEC_RELOAD;
2258 r = service_spawn(s,
2262 !s->permissions_start_only,
2263 !s->root_directory_start_only,
2271 service_set_state(s, SERVICE_RELOAD);
2273 service_enter_running(s, SERVICE_SUCCESS);
2278 log_warning_unit(UNIT(s)->id,
2279 "%s failed to run 'reload' task: %s",
2280 UNIT(s)->id, strerror(-r));
2281 s->reload_result = SERVICE_FAILURE_RESOURCES;
2282 service_enter_running(s, SERVICE_SUCCESS);
2285 static void service_run_next_control(Service *s) {
2289 assert(s->control_command);
2290 assert(s->control_command->command_next);
2292 assert(s->control_command_id != SERVICE_EXEC_START);
2294 s->control_command = s->control_command->command_next;
2295 service_unwatch_control_pid(s);
2297 r = service_spawn(s,
2301 !s->permissions_start_only,
2302 !s->root_directory_start_only,
2303 s->control_command_id == SERVICE_EXEC_START_PRE ||
2304 s->control_command_id == SERVICE_EXEC_STOP_POST,
2314 log_warning_unit(UNIT(s)->id,
2315 "%s failed to run next control task: %s",
2316 UNIT(s)->id, strerror(-r));
2318 if (s->state == SERVICE_START_PRE)
2319 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2320 else if (s->state == SERVICE_STOP)
2321 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2322 else if (s->state == SERVICE_STOP_POST)
2323 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2324 else if (s->state == SERVICE_RELOAD) {
2325 s->reload_result = SERVICE_FAILURE_RESOURCES;
2326 service_enter_running(s, SERVICE_SUCCESS);
2328 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2331 static void service_run_next_main(Service *s) {
2336 assert(s->main_command);
2337 assert(s->main_command->command_next);
2338 assert(s->type == SERVICE_ONESHOT);
2340 s->main_command = s->main_command->command_next;
2341 service_unwatch_main_pid(s);
2343 r = service_spawn(s,
2350 s->notify_access != NOTIFY_NONE,
2356 service_set_main_pid(s, pid);
2361 log_warning_unit(UNIT(s)->id,
2362 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2363 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2366 static int service_start_limit_test(Service *s) {
2369 if (ratelimit_test(&s->start_limit))
2372 switch (s->start_limit_action) {
2374 case SERVICE_START_LIMIT_NONE:
2375 log_warning_unit(UNIT(s)->id,
2376 "%s start request repeated too quickly, refusing to start.",
2380 case SERVICE_START_LIMIT_REBOOT: {
2381 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2384 log_warning_unit(UNIT(s)->id,
2385 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2387 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2388 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2389 true, &error, NULL);
2391 log_error_unit(UNIT(s)->id,
2392 "Failed to reboot: %s.", bus_error_message(&error, r));
2397 case SERVICE_START_LIMIT_REBOOT_FORCE:
2398 log_warning_unit(UNIT(s)->id,
2399 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2400 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2403 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2404 log_warning_unit(UNIT(s)->id,
2405 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2407 reboot(RB_AUTOBOOT);
2411 log_error_unit(UNIT(s)->id,
2412 "start limit action=%i", s->start_limit_action);
2413 assert_not_reached("Unknown StartLimitAction.");
2419 static int service_start(Unit *u) {
2420 Service *s = SERVICE(u);
2425 /* We cannot fulfill this request right now, try again later
2427 if (s->state == SERVICE_STOP ||
2428 s->state == SERVICE_STOP_SIGTERM ||
2429 s->state == SERVICE_STOP_SIGKILL ||
2430 s->state == SERVICE_STOP_POST ||
2431 s->state == SERVICE_FINAL_SIGTERM ||
2432 s->state == SERVICE_FINAL_SIGKILL)
2435 /* Already on it! */
2436 if (s->state == SERVICE_START_PRE ||
2437 s->state == SERVICE_START ||
2438 s->state == SERVICE_START_POST)
2441 /* A service that will be restarted must be stopped first to
2442 * trigger BindsTo and/or OnFailure dependencies. If a user
2443 * does not want to wait for the holdoff time to elapse, the
2444 * service should be manually restarted, not started. We
2445 * simply return EAGAIN here, so that any start jobs stay
2446 * queued, and assume that the auto restart timer will
2447 * eventually trigger the restart. */
2448 if (s->state == SERVICE_AUTO_RESTART)
2451 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2453 /* Make sure we don't enter a busy loop of some kind. */
2454 r = service_start_limit_test(s);
2456 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2460 s->result = SERVICE_SUCCESS;
2461 s->reload_result = SERVICE_SUCCESS;
2462 s->main_pid_known = false;
2463 s->main_pid_alien = false;
2464 s->forbid_restart = false;
2466 service_enter_start_pre(s);
2470 static int service_stop(Unit *u) {
2471 Service *s = SERVICE(u);
2475 /* Don't create restart jobs from here. */
2476 s->forbid_restart = true;
2479 if (s->state == SERVICE_STOP ||
2480 s->state == SERVICE_STOP_SIGTERM ||
2481 s->state == SERVICE_STOP_SIGKILL ||
2482 s->state == SERVICE_STOP_POST ||
2483 s->state == SERVICE_FINAL_SIGTERM ||
2484 s->state == SERVICE_FINAL_SIGKILL)
2487 /* A restart will be scheduled or is in progress. */
2488 if (s->state == SERVICE_AUTO_RESTART) {
2489 service_set_state(s, SERVICE_DEAD);
2493 /* If there's already something running we go directly into
2495 if (s->state == SERVICE_START_PRE ||
2496 s->state == SERVICE_START ||
2497 s->state == SERVICE_START_POST ||
2498 s->state == SERVICE_RELOAD) {
2499 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2503 assert(s->state == SERVICE_RUNNING ||
2504 s->state == SERVICE_EXITED);
2506 service_enter_stop(s, SERVICE_SUCCESS);
2510 static int service_reload(Unit *u) {
2511 Service *s = SERVICE(u);
2515 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2517 service_enter_reload(s);
2521 _pure_ static bool service_can_reload(Unit *u) {
2522 Service *s = SERVICE(u);
2526 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2529 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2530 Service *s = SERVICE(u);
2536 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2537 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2538 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2540 if (s->control_pid > 0)
2541 unit_serialize_item_format(u, f, "control-pid", PID_FMT,
2544 if (s->main_pid_known && s->main_pid > 0)
2545 unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid);
2547 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2550 unit_serialize_item(u, f, "status-text", s->status_text);
2552 /* FIXME: There's a minor uncleanliness here: if there are
2553 * multiple commands attached here, we will start from the
2554 * first one again */
2555 if (s->control_command_id >= 0)
2556 unit_serialize_item(u, f, "control-command",
2557 service_exec_command_to_string(s->control_command_id));
2559 if (s->socket_fd >= 0) {
2562 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2565 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2568 if (s->main_exec_status.pid > 0) {
2569 unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT,
2570 s->main_exec_status.pid);
2571 dual_timestamp_serialize(f, "main-exec-status-start",
2572 &s->main_exec_status.start_timestamp);
2573 dual_timestamp_serialize(f, "main-exec-status-exit",
2574 &s->main_exec_status.exit_timestamp);
2576 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2577 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2578 s->main_exec_status.code);
2579 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2580 s->main_exec_status.status);
2583 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2584 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2586 if (s->forbid_restart)
2587 unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart));
2592 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2593 Service *s = SERVICE(u);
2600 if (streq(key, "state")) {
2603 state = service_state_from_string(value);
2605 log_debug_unit(u->id, "Failed to parse state value %s", value);
2607 s->deserialized_state = state;
2608 } else if (streq(key, "result")) {
2611 f = service_result_from_string(value);
2613 log_debug_unit(u->id, "Failed to parse result value %s", value);
2614 else if (f != SERVICE_SUCCESS)
2617 } else if (streq(key, "reload-result")) {
2620 f = service_result_from_string(value);
2622 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2623 else if (f != SERVICE_SUCCESS)
2624 s->reload_result = f;
2626 } else if (streq(key, "control-pid")) {
2629 if (parse_pid(value, &pid) < 0)
2630 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2632 s->control_pid = pid;
2633 } else if (streq(key, "main-pid")) {
2636 if (parse_pid(value, &pid) < 0)
2637 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2639 service_set_main_pid(s, pid);
2640 unit_watch_pid(UNIT(s), pid);
2642 } else if (streq(key, "main-pid-known")) {
2645 b = parse_boolean(value);
2647 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2649 s->main_pid_known = b;
2650 } else if (streq(key, "status-text")) {
2657 free(s->status_text);
2661 } else if (streq(key, "control-command")) {
2662 ServiceExecCommand id;
2664 id = service_exec_command_from_string(value);
2666 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2668 s->control_command_id = id;
2669 s->control_command = s->exec_command[id];
2671 } else if (streq(key, "socket-fd")) {
2674 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2675 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2678 if (s->socket_fd >= 0)
2679 close_nointr_nofail(s->socket_fd);
2680 s->socket_fd = fdset_remove(fds, fd);
2682 } else if (streq(key, "main-exec-status-pid")) {
2685 if (parse_pid(value, &pid) < 0)
2686 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2688 s->main_exec_status.pid = pid;
2689 } else if (streq(key, "main-exec-status-code")) {
2692 if (safe_atoi(value, &i) < 0)
2693 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2695 s->main_exec_status.code = i;
2696 } else if (streq(key, "main-exec-status-status")) {
2699 if (safe_atoi(value, &i) < 0)
2700 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2702 s->main_exec_status.status = i;
2703 } else if (streq(key, "main-exec-status-start"))
2704 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2705 else if (streq(key, "main-exec-status-exit"))
2706 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2707 else if (streq(key, "watchdog-timestamp"))
2708 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2709 else if (streq(key, "forbid-restart")) {
2712 b = parse_boolean(value);
2714 log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value);
2716 s->forbid_restart = b;
2718 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2723 _pure_ static UnitActiveState service_active_state(Unit *u) {
2724 const UnitActiveState *table;
2728 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2730 return table[SERVICE(u)->state];
2733 static const char *service_sub_state_to_string(Unit *u) {
2736 return service_state_to_string(SERVICE(u)->state);
2739 static bool service_check_gc(Unit *u) {
2740 Service *s = SERVICE(u);
2744 /* Never clean up services that still have a process around,
2745 * even if the service is formally dead. */
2746 if (cgroup_good(s) > 0 ||
2747 main_pid_good(s) > 0 ||
2748 control_pid_good(s) > 0)
2751 #ifdef HAVE_SYSV_COMPAT
2759 _pure_ static bool service_check_snapshot(Unit *u) {
2760 Service *s = SERVICE(u);
2764 return (s->socket_fd < 0);
2767 static int service_retry_pid_file(Service *s) {
2770 assert(s->pid_file);
2771 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2773 r = service_load_pid_file(s, false);
2777 service_unwatch_pid_file(s);
2779 service_enter_running(s, SERVICE_SUCCESS);
2783 static int service_watch_pid_file(Service *s) {
2786 log_debug_unit(UNIT(s)->id,
2787 "Setting watch for %s's PID file %s",
2788 UNIT(s)->id, s->pid_file_pathspec->path);
2789 r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io);
2793 /* the pidfile might have appeared just before we set the watch */
2794 log_debug_unit(UNIT(s)->id,
2795 "Trying to read %s's PID file %s in case it changed",
2796 UNIT(s)->id, s->pid_file_pathspec->path);
2797 service_retry_pid_file(s);
2801 log_error_unit(UNIT(s)->id,
2802 "Failed to set a watch for %s's PID file %s: %s",
2803 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2804 service_unwatch_pid_file(s);
2808 static int service_demand_pid_file(Service *s) {
2811 assert(s->pid_file);
2812 assert(!s->pid_file_pathspec);
2814 ps = new0(PathSpec, 1);
2819 ps->path = strdup(s->pid_file);
2825 path_kill_slashes(ps->path);
2827 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2828 * keep their PID file open all the time. */
2829 ps->type = PATH_MODIFIED;
2830 ps->inotify_fd = -1;
2832 s->pid_file_pathspec = ps;
2834 return service_watch_pid_file(s);
2837 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) {
2838 PathSpec *p = userdata;
2843 s = SERVICE(p->unit);
2847 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2848 assert(s->pid_file_pathspec);
2849 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2851 log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id);
2853 if (path_spec_fd_event(p, events) < 0)
2856 if (service_retry_pid_file(s) == 0)
2859 if (service_watch_pid_file(s) < 0)
2865 service_unwatch_pid_file(s);
2866 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2870 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2871 Service *s = SERVICE(u);
2877 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2878 is_clean_exit_lsb(code, status, &s->success_status))
2879 f = SERVICE_SUCCESS;
2880 else if (code == CLD_EXITED)
2881 f = SERVICE_FAILURE_EXIT_CODE;
2882 else if (code == CLD_KILLED)
2883 f = SERVICE_FAILURE_SIGNAL;
2884 else if (code == CLD_DUMPED)
2885 f = SERVICE_FAILURE_CORE_DUMP;
2887 assert_not_reached("Unknown code");
2889 if (s->main_pid == pid) {
2890 /* Forking services may occasionally move to a new PID.
2891 * As long as they update the PID file before exiting the old
2892 * PID, they're fine. */
2893 if (service_load_pid_file(s, false) == 0)
2897 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2899 if (s->main_command) {
2900 /* If this is not a forking service than the
2901 * main process got started and hence we copy
2902 * the exit status so that it is recorded both
2903 * as main and as control process exit
2906 s->main_command->exec_status = s->main_exec_status;
2908 if (s->main_command->ignore)
2909 f = SERVICE_SUCCESS;
2910 } else if (s->exec_command[SERVICE_EXEC_START]) {
2912 /* If this is a forked process, then we should
2913 * ignore the return value if this was
2914 * configured for the starter process */
2916 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2917 f = SERVICE_SUCCESS;
2920 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2922 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2923 u->id, sigchld_code_to_string(code), status,
2924 strna(code == CLD_EXITED
2925 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2926 : signal_to_string(status)),
2927 "EXIT_CODE=%s", sigchld_code_to_string(code),
2928 "EXIT_STATUS=%i", status,
2931 if (f != SERVICE_SUCCESS)
2934 if (s->main_command &&
2935 s->main_command->command_next &&
2936 f == SERVICE_SUCCESS) {
2938 /* There is another command to *
2939 * execute, so let's do that. */
2941 log_debug_unit(u->id,
2942 "%s running next main command for state %s",
2943 u->id, service_state_to_string(s->state));
2944 service_run_next_main(s);
2948 /* The service exited, so the service is officially
2950 s->main_command = NULL;
2954 case SERVICE_START_POST:
2955 case SERVICE_RELOAD:
2957 /* Need to wait until the operation is
2962 if (s->type == SERVICE_ONESHOT) {
2963 /* This was our main goal, so let's go on */
2964 if (f == SERVICE_SUCCESS)
2965 service_enter_start_post(s);
2967 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2973 case SERVICE_RUNNING:
2974 service_enter_running(s, f);
2977 case SERVICE_STOP_SIGTERM:
2978 case SERVICE_STOP_SIGKILL:
2980 if (!control_pid_good(s))
2981 service_enter_stop_post(s, f);
2983 /* If there is still a control process, wait for that first */
2986 case SERVICE_STOP_POST:
2987 case SERVICE_FINAL_SIGTERM:
2988 case SERVICE_FINAL_SIGKILL:
2990 if (!control_pid_good(s))
2991 service_enter_dead(s, f, true);
2995 assert_not_reached("Uh, main process died at wrong time.");
2999 } else if (s->control_pid == pid) {
3002 if (s->control_command) {
3003 exec_status_exit(&s->control_command->exec_status,
3004 &s->exec_context, pid, code, status);
3006 if (s->control_command->ignore)
3007 f = SERVICE_SUCCESS;
3010 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3011 "%s: control process exited, code=%s status=%i",
3012 u->id, sigchld_code_to_string(code), status);
3014 if (f != SERVICE_SUCCESS)
3017 /* Immediately get rid of the cgroup, so that the
3018 * kernel doesn't delay the cgroup empty messages for
3019 * the service cgroup any longer than necessary */
3020 service_kill_control_processes(s);
3022 if (s->control_command &&
3023 s->control_command->command_next &&
3024 f == SERVICE_SUCCESS) {
3026 /* There is another command to *
3027 * execute, so let's do that. */
3029 log_debug_unit(u->id,
3030 "%s running next control command for state %s",
3031 u->id, service_state_to_string(s->state));
3032 service_run_next_control(s);
3035 /* No further commands for this step, so let's
3036 * figure out what to do next */
3038 s->control_command = NULL;
3039 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3041 log_debug_unit(u->id,
3042 "%s got final SIGCHLD for state %s",
3043 u->id, service_state_to_string(s->state));
3047 case SERVICE_START_PRE:
3048 if (f == SERVICE_SUCCESS)
3049 service_enter_start(s);
3051 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3055 if (s->type != SERVICE_FORKING)
3056 /* Maybe spurious event due to a reload that changed the type? */
3059 if (f != SERVICE_SUCCESS) {
3060 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3065 bool has_start_post;
3068 /* Let's try to load the pid file here if we can.
3069 * The PID file might actually be created by a START_POST
3070 * script. In that case don't worry if the loading fails. */
3072 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3073 r = service_load_pid_file(s, !has_start_post);
3074 if (!has_start_post && r < 0) {
3075 r = service_demand_pid_file(s);
3076 if (r < 0 || !cgroup_good(s))
3077 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3081 service_search_main_pid(s);
3083 service_enter_start_post(s);
3086 case SERVICE_START_POST:
3087 if (f != SERVICE_SUCCESS) {
3088 service_enter_stop(s, f);
3095 r = service_load_pid_file(s, true);
3097 r = service_demand_pid_file(s);
3098 if (r < 0 || !cgroup_good(s))
3099 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3103 service_search_main_pid(s);
3105 service_enter_running(s, SERVICE_SUCCESS);
3108 case SERVICE_RELOAD:
3109 if (f == SERVICE_SUCCESS) {
3110 service_load_pid_file(s, true);
3111 service_search_main_pid(s);
3114 s->reload_result = f;
3115 service_enter_running(s, SERVICE_SUCCESS);
3119 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3122 case SERVICE_STOP_SIGTERM:
3123 case SERVICE_STOP_SIGKILL:
3124 if (main_pid_good(s) <= 0)
3125 service_enter_stop_post(s, f);
3127 /* If there is still a service
3128 * process around, wait until
3129 * that one quit, too */
3132 case SERVICE_STOP_POST:
3133 case SERVICE_FINAL_SIGTERM:
3134 case SERVICE_FINAL_SIGKILL:
3135 if (main_pid_good(s) <= 0)
3136 service_enter_dead(s, f, true);
3140 assert_not_reached("Uh, control process died at wrong time.");
3145 /* Notify clients about changed exit status */
3146 unit_add_to_dbus_queue(u);
3149 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
3150 Service *s = SERVICE(userdata);
3153 assert(source == s->timer_event_source);
3157 case SERVICE_START_PRE:
3159 log_warning_unit(UNIT(s)->id,
3160 "%s %s operation timed out. Terminating.",
3162 s->state == SERVICE_START ? "start" : "start-pre");
3163 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3166 case SERVICE_START_POST:
3167 log_warning_unit(UNIT(s)->id,
3168 "%s start-post operation timed out. Stopping.", UNIT(s)->id);
3169 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3172 case SERVICE_RELOAD:
3173 log_warning_unit(UNIT(s)->id,
3174 "%s reload operation timed out. Stopping.", UNIT(s)->id);
3175 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3176 service_enter_running(s, SERVICE_SUCCESS);
3180 log_warning_unit(UNIT(s)->id,
3181 "%s stopping timed out. Terminating.", UNIT(s)->id);
3182 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3185 case SERVICE_STOP_SIGTERM:
3186 if (s->kill_context.send_sigkill) {
3187 log_warning_unit(UNIT(s)->id,
3188 "%s stop-sigterm timed out. Killing.", UNIT(s)->id);
3189 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3191 log_warning_unit(UNIT(s)->id,
3192 "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id);
3193 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3198 case SERVICE_STOP_SIGKILL:
3199 /* Uh, we sent a SIGKILL and it is still not gone?
3200 * Must be something we cannot kill, so let's just be
3201 * weirded out and continue */
3203 log_warning_unit(UNIT(s)->id,
3204 "%s still around after SIGKILL. Ignoring.", UNIT(s)->id);
3205 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3208 case SERVICE_STOP_POST:
3209 log_warning_unit(UNIT(s)->id,
3210 "%s stop-post timed out. Terminating.", UNIT(s)->id);
3211 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3214 case SERVICE_FINAL_SIGTERM:
3215 if (s->kill_context.send_sigkill) {
3216 log_warning_unit(UNIT(s)->id,
3217 "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id);
3218 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3220 log_warning_unit(UNIT(s)->id,
3221 "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.",
3223 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3228 case SERVICE_FINAL_SIGKILL:
3229 log_warning_unit(UNIT(s)->id,
3230 "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id);
3231 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3234 case SERVICE_AUTO_RESTART:
3235 log_info_unit(UNIT(s)->id,
3236 "%s holdoff time over, scheduling restart.", UNIT(s)->id);
3237 service_enter_restart(s);
3241 assert_not_reached("Timeout at wrong time.");
3247 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) {
3248 Service *s = SERVICE(userdata);
3251 assert(source == s->watchdog_event_source);
3253 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
3254 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG);
3259 static void service_notify_cgroup_empty_event(Unit *u) {
3260 Service *s = SERVICE(u);
3264 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
3268 /* Waiting for SIGCHLD is usually more interesting,
3269 * because it includes return codes/signals. Which is
3270 * why we ignore the cgroup events for most cases,
3271 * except when we don't know pid which to expect the
3275 case SERVICE_START_POST:
3276 /* If we were hoping for the daemon to write its PID file,
3277 * we can give up now. */
3278 if (s->pid_file_pathspec) {
3279 log_warning_unit(u->id,
3280 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3281 service_unwatch_pid_file(s);
3282 if (s->state == SERVICE_START)
3283 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3285 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3289 case SERVICE_RUNNING:
3290 /* service_enter_running() will figure out what to do */
3291 service_enter_running(s, SERVICE_SUCCESS);
3294 case SERVICE_STOP_SIGTERM:
3295 case SERVICE_STOP_SIGKILL:
3297 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3298 service_enter_stop_post(s, SERVICE_SUCCESS);
3302 case SERVICE_STOP_POST:
3303 case SERVICE_FINAL_SIGTERM:
3304 case SERVICE_FINAL_SIGKILL:
3305 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3306 service_enter_dead(s, SERVICE_SUCCESS, true);
3315 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3316 Service *s = SERVICE(u);
3318 bool notify_dbus = false;
3322 log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)",
3323 u->id, pid, tags && *tags ? tags[0] : "(empty)");
3325 if (s->notify_access == NOTIFY_NONE) {
3326 log_warning_unit(u->id,
3327 "%s: Got notification message from PID "PID_FMT", but reception is disabled.",
3332 if (s->notify_access == NOTIFY_MAIN && s->main_pid != 0 && pid != s->main_pid) {
3333 log_warning_unit(u->id,
3334 "%s: Got notification message from PID "PID_FMT", but reception only permitted for PID "PID_FMT,
3335 u->id, pid, s->main_pid);
3339 /* Interpret MAINPID= */
3340 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3341 (s->state == SERVICE_START ||
3342 s->state == SERVICE_START_POST ||
3343 s->state == SERVICE_RUNNING ||
3344 s->state == SERVICE_RELOAD)) {
3346 if (parse_pid(e + 8, &pid) < 0)
3347 log_warning_unit(u->id, "Failed to parse notification message %s", e);
3349 log_debug_unit(u->id, "%s: got %s", u->id, e);
3350 service_set_main_pid(s, pid);
3351 unit_watch_pid(UNIT(s), pid);
3356 /* Interpret READY= */
3357 if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) {
3358 log_debug_unit(u->id, "%s: got READY=1", u->id);
3359 service_enter_start_post(s);
3363 /* Interpret STATUS= */
3364 e = strv_find_prefix(tags, "STATUS=");
3369 if (!utf8_is_valid(e+7)) {
3370 log_warning_unit(u->id, "Status message in notification is not UTF-8 clean.");
3374 log_debug_unit(u->id, "%s: got %s", u->id, e);
3385 if (!streq_ptr(s->status_text, t)) {
3386 free(s->status_text);
3393 /* Interpet WATCHDOG= */
3394 if (strv_find(tags, "WATCHDOG=1")) {
3395 log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
3396 service_reset_watchdog(s);
3399 /* Notify clients about changed status or main pid */
3401 unit_add_to_dbus_queue(u);
3404 #ifdef HAVE_SYSV_COMPAT
3406 static int service_enumerate(Manager *m) {
3409 _cleanup_closedir_ DIR *d = NULL;
3410 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3411 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3412 _cleanup_set_free_ Set *shutdown_services = NULL;
3419 if (m->running_as != SYSTEMD_SYSTEM)
3422 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3423 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3427 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3438 if (errno != ENOENT)
3439 log_warning("opendir(%s) failed: %m", path);
3444 while ((de = readdir(d))) {
3447 if (ignore_file(de->d_name))
3450 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3453 if (strlen(de->d_name) < 4)
3456 a = undecchar(de->d_name[1]);
3457 b = undecchar(de->d_name[2]);
3463 fpath = strjoin(path, "/", de->d_name, NULL);
3469 if (access(fpath, X_OK) < 0) {
3471 if (errno != ENOENT)
3472 log_warning("access() failed on %s: %m", fpath);
3478 name = sysv_translate_name(de->d_name + 3);
3484 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3486 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3490 if (de->d_name[0] == 'S') {
3492 if (rcnd_table[i].type == RUNLEVEL_UP) {
3493 SERVICE(service)->sysv_start_priority_from_rcnd =
3494 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3496 SERVICE(service)->sysv_enabled = true;
3499 r = set_ensure_allocated(&runlevel_services[i],
3500 trivial_hash_func, trivial_compare_func);
3504 r = set_put(runlevel_services[i], service);
3508 } else if (de->d_name[0] == 'K' &&
3509 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3511 r = set_ensure_allocated(&shutdown_services,
3512 trivial_hash_func, trivial_compare_func);
3516 r = set_put(shutdown_services, service);
3523 /* Now we loaded all stubs and are aware of the lowest
3524 start-up priority for all services, not let's actually load
3525 the services, this will also tell us which services are
3526 actually native now */
3527 manager_dispatch_load_queue(m);
3529 /* If this is a native service, rely on native ways to pull in
3530 * a service, don't pull it in via sysv rcN.d links. */
3531 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3532 SET_FOREACH(service, runlevel_services[i], j) {
3533 service = unit_follow_merge(service);
3535 if (service->fragment_path)
3538 r = unit_add_two_dependencies_by_name_inverse(
3539 service, UNIT_AFTER, UNIT_WANTS,
3540 rcnd_table[i].target, NULL, true);
3545 /* We honour K links only for halt/reboot. For the normal
3546 * runlevels we assume the stop jobs will be implicitly added
3547 * by the core logic. Also, we don't really distinguish here
3548 * between the runlevels 0 and 6 and just add them to the
3549 * special shutdown target. */
3550 SET_FOREACH(service, shutdown_services, j) {
3551 service = unit_follow_merge(service);
3553 if (service->fragment_path)
3556 r = unit_add_two_dependencies_by_name(
3557 service, UNIT_BEFORE, UNIT_CONFLICTS,
3558 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3567 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3568 set_free(runlevel_services[i]);
3574 static void service_bus_name_owner_change(
3577 const char *old_owner,
3578 const char *new_owner) {
3580 Service *s = SERVICE(u);
3586 assert(streq(s->bus_name, name));
3587 assert(old_owner || new_owner);
3589 if (old_owner && new_owner)
3590 log_debug_unit(u->id,
3591 "%s's D-Bus name %s changed owner from %s to %s",
3592 u->id, name, old_owner, new_owner);
3594 log_debug_unit(u->id,
3595 "%s's D-Bus name %s no longer registered by %s",
3596 u->id, name, old_owner);
3598 log_debug_unit(u->id,
3599 "%s's D-Bus name %s now registered by %s",
3600 u->id, name, new_owner);
3602 s->bus_name_good = !!new_owner;
3604 if (s->type == SERVICE_DBUS) {
3606 /* service_enter_running() will figure out what to
3608 if (s->state == SERVICE_RUNNING)
3609 service_enter_running(s, SERVICE_SUCCESS);
3610 else if (s->state == SERVICE_START && new_owner)
3611 service_enter_start_post(s);
3613 } else if (new_owner &&
3615 (s->state == SERVICE_START ||
3616 s->state == SERVICE_START_POST ||
3617 s->state == SERVICE_RUNNING ||
3618 s->state == SERVICE_RELOAD)) {
3620 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
3623 /* Try to acquire PID from bus service */
3625 r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds);
3627 r = sd_bus_creds_get_pid(creds, &pid);
3629 log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3631 service_set_main_pid(s, pid);
3632 unit_watch_pid(UNIT(s), pid);
3637 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3638 _cleanup_free_ char *peer = NULL;
3644 /* This is called by the socket code when instantiating a new
3645 * service for a stream socket and the socket needs to be
3648 if (UNIT(s)->load_state != UNIT_LOADED)
3651 if (s->socket_fd >= 0)
3654 if (s->state != SERVICE_DEAD)
3657 if (getpeername_pretty(fd, &peer) >= 0) {
3659 if (UNIT(s)->description) {
3660 _cleanup_free_ char *a;
3662 a = strjoin(UNIT(s)->description, " (", peer, ")", NULL);
3666 r = unit_set_description(UNIT(s), a);
3668 r = unit_set_description(UNIT(s), peer);
3676 unit_ref_set(&s->accept_socket, UNIT(sock));
3678 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3681 static void service_reset_failed(Unit *u) {
3682 Service *s = SERVICE(u);
3686 if (s->state == SERVICE_FAILED)
3687 service_set_state(s, SERVICE_DEAD);
3689 s->result = SERVICE_SUCCESS;
3690 s->reload_result = SERVICE_SUCCESS;
3692 RATELIMIT_RESET(s->start_limit);
3695 static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
3696 Service *s = SERVICE(u);
3698 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3701 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3702 [SERVICE_DEAD] = "dead",
3703 [SERVICE_START_PRE] = "start-pre",
3704 [SERVICE_START] = "start",
3705 [SERVICE_START_POST] = "start-post",
3706 [SERVICE_RUNNING] = "running",
3707 [SERVICE_EXITED] = "exited",
3708 [SERVICE_RELOAD] = "reload",
3709 [SERVICE_STOP] = "stop",
3710 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3711 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3712 [SERVICE_STOP_POST] = "stop-post",
3713 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3714 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3715 [SERVICE_FAILED] = "failed",
3716 [SERVICE_AUTO_RESTART] = "auto-restart",
3719 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3721 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3722 [SERVICE_RESTART_NO] = "no",
3723 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3724 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3725 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3726 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3727 [SERVICE_RESTART_ALWAYS] = "always"
3730 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3732 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3733 [SERVICE_SIMPLE] = "simple",
3734 [SERVICE_FORKING] = "forking",
3735 [SERVICE_ONESHOT] = "oneshot",
3736 [SERVICE_DBUS] = "dbus",
3737 [SERVICE_NOTIFY] = "notify",
3738 [SERVICE_IDLE] = "idle"
3741 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3743 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3744 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3745 [SERVICE_EXEC_START] = "ExecStart",
3746 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3747 [SERVICE_EXEC_RELOAD] = "ExecReload",
3748 [SERVICE_EXEC_STOP] = "ExecStop",
3749 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3752 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3754 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3755 [NOTIFY_NONE] = "none",
3756 [NOTIFY_MAIN] = "main",
3757 [NOTIFY_ALL] = "all"
3760 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3762 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3763 [SERVICE_SUCCESS] = "success",
3764 [SERVICE_FAILURE_RESOURCES] = "resources",
3765 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3766 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3767 [SERVICE_FAILURE_SIGNAL] = "signal",
3768 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3769 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3770 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3773 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3775 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3776 [SERVICE_START_LIMIT_NONE] = "none",
3777 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3778 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3779 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3781 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3783 const UnitVTable service_vtable = {
3784 .object_size = sizeof(Service),
3785 .exec_context_offset = offsetof(Service, exec_context),
3786 .cgroup_context_offset = offsetof(Service, cgroup_context),
3787 .kill_context_offset = offsetof(Service, kill_context),
3788 .exec_runtime_offset = offsetof(Service, exec_runtime),
3794 .private_section = "Service",
3796 .init = service_init,
3797 .done = service_done,
3798 .load = service_load,
3800 .coldplug = service_coldplug,
3802 .dump = service_dump,
3804 .start = service_start,
3805 .stop = service_stop,
3806 .reload = service_reload,
3808 .can_reload = service_can_reload,
3810 .kill = service_kill,
3812 .serialize = service_serialize,
3813 .deserialize_item = service_deserialize_item,
3815 .active_state = service_active_state,
3816 .sub_state_to_string = service_sub_state_to_string,
3818 .check_gc = service_check_gc,
3819 .check_snapshot = service_check_snapshot,
3821 .sigchld_event = service_sigchld_event,
3823 .reset_failed = service_reset_failed,
3825 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3826 .notify_message = service_notify_message,
3828 .bus_name_owner_change = service_bus_name_owner_change,
3830 .bus_interface = "org.freedesktop.systemd1.Service",
3831 .bus_vtable = bus_service_vtable,
3832 .bus_set_property = bus_service_set_property,
3833 .bus_commit_properties = bus_service_commit_properties,
3835 #ifdef HAVE_SYSV_COMPAT
3836 .enumerate = service_enumerate,
3839 .can_transient = true,
3841 .status_message_formats = {
3842 .starting_stopping = {
3843 [0] = "Starting %s...",
3844 [1] = "Stopping %s...",
3846 .finished_start_job = {
3847 [JOB_DONE] = "Started %s.",
3848 [JOB_FAILED] = "Failed to start %s.",
3849 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3850 [JOB_TIMEOUT] = "Timed out starting %s.",
3852 .finished_stop_job = {
3853 [JOB_DONE] = "Stopped %s.",
3854 [JOB_FAILED] = "Stopped (with error) %s.",
3855 [JOB_TIMEOUT] = "Timed out stopping %s.",