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 %lu which is not our child. We'll most likely not notice when it exits.",
214 UNIT(s)->id, (unsigned long) pid);
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 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
1142 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1143 SPECIAL_BASIC_TARGET, NULL, true);
1147 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
1148 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1149 SPECIAL_SOCKETS_TARGET, NULL, true);
1153 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1154 SPECIAL_TIMERS_TARGET, NULL, true);
1158 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1159 SPECIAL_PATHS_TARGET, NULL, true);
1164 /* Second, activate normal shutdown */
1165 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1166 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1170 static void service_fix_output(Service *s) {
1173 /* If nothing has been explicitly configured, patch default
1174 * output in. If input is socket/tty we avoid this however,
1175 * since in that case we want output to default to the same
1176 * place as we read input from. */
1178 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1179 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1180 s->exec_context.std_input == EXEC_INPUT_NULL)
1181 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1183 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1184 s->exec_context.std_input == EXEC_INPUT_NULL)
1185 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1188 static int service_load(Unit *u) {
1190 Service *s = SERVICE(u);
1194 /* Load a .service file */
1195 r = unit_load_fragment(u);
1199 #ifdef HAVE_SYSV_COMPAT
1200 /* Load a classic init script as a fallback, if we couldn't find anything */
1201 if (u->load_state == UNIT_STUB) {
1202 r = service_load_sysv(s);
1208 /* Still nothing found? Then let's give up */
1209 if (u->load_state == UNIT_STUB)
1212 /* This is a new unit? Then let's add in some extras */
1213 if (u->load_state == UNIT_LOADED) {
1215 /* We were able to load something, then let's add in
1216 * the dropin directories. */
1217 r = unit_load_dropin(u);
1221 if (s->type == _SERVICE_TYPE_INVALID)
1222 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1224 /* Oneshot services have disabled start timeout by default */
1225 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1226 s->timeout_start_usec = 0;
1228 service_fix_output(s);
1230 r = unit_add_exec_dependencies(u, &s->exec_context);
1234 r = unit_add_default_slice(u);
1238 #ifdef HAVE_SYSV_COMPAT
1239 r = sysv_fix_order(s);
1245 r = unit_watch_bus_name(u, s->bus_name);
1250 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1251 s->notify_access = NOTIFY_MAIN;
1253 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1254 s->notify_access = NOTIFY_MAIN;
1256 if (s->type == SERVICE_DBUS || s->bus_name) {
1257 r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
1258 SPECIAL_DBUS_SOCKET, NULL, true);
1263 if (UNIT(s)->default_dependencies) {
1264 r = service_add_default_dependencies(s);
1269 r = unit_exec_context_defaults(u, &s->exec_context);
1274 return service_verify(s);
1277 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1279 ServiceExecCommand c;
1280 Service *s = SERVICE(u);
1281 const char *prefix2;
1282 _cleanup_free_ char *p2 = NULL;
1286 p2 = strappend(prefix, "\t");
1287 prefix2 = p2 ? p2 : prefix;
1290 "%sService State: %s\n"
1292 "%sReload Result: %s\n"
1293 "%sPermissionsStartOnly: %s\n"
1294 "%sRootDirectoryStartOnly: %s\n"
1295 "%sRemainAfterExit: %s\n"
1296 "%sGuessMainPID: %s\n"
1299 "%sNotifyAccess: %s\n",
1300 prefix, service_state_to_string(s->state),
1301 prefix, service_result_to_string(s->result),
1302 prefix, service_result_to_string(s->reload_result),
1303 prefix, yes_no(s->permissions_start_only),
1304 prefix, yes_no(s->root_directory_start_only),
1305 prefix, yes_no(s->remain_after_exit),
1306 prefix, yes_no(s->guess_main_pid),
1307 prefix, service_type_to_string(s->type),
1308 prefix, service_restart_to_string(s->restart),
1309 prefix, notify_access_to_string(s->notify_access));
1311 if (s->control_pid > 0)
1313 "%sControl PID: %lu\n",
1314 prefix, (unsigned long) s->control_pid);
1316 if (s->main_pid > 0)
1319 "%sMain PID Known: %s\n"
1320 "%sMain PID Alien: %s\n",
1321 prefix, (unsigned long) s->main_pid,
1322 prefix, yes_no(s->main_pid_known),
1323 prefix, yes_no(s->main_pid_alien));
1328 prefix, s->pid_file);
1333 "%sBus Name Good: %s\n",
1334 prefix, s->bus_name,
1335 prefix, yes_no(s->bus_name_good));
1337 kill_context_dump(&s->kill_context, f, prefix);
1338 exec_context_dump(&s->exec_context, f, prefix);
1340 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1342 if (!s->exec_command[c])
1345 fprintf(f, "%s-> %s:\n",
1346 prefix, service_exec_command_to_string(c));
1348 exec_command_dump_list(s->exec_command[c], f, prefix2);
1351 #ifdef HAVE_SYSV_COMPAT
1354 "%sSysV Init Script has LSB Header: %s\n"
1355 "%sSysVEnabled: %s\n",
1356 prefix, yes_no(s->sysv_has_lsb),
1357 prefix, yes_no(s->sysv_enabled));
1359 if (s->sysv_start_priority >= 0)
1361 "%sSysVStartPriority: %i\n",
1362 prefix, s->sysv_start_priority);
1364 if (s->sysv_runlevels)
1365 fprintf(f, "%sSysVRunLevels: %s\n",
1366 prefix, s->sysv_runlevels);
1370 fprintf(f, "%sStatus Text: %s\n",
1371 prefix, s->status_text);
1374 static int service_load_pid_file(Service *s, bool may_warn) {
1375 _cleanup_free_ char *k = NULL;
1384 r = read_one_line_file(s->pid_file, &k);
1387 log_info_unit(UNIT(s)->id,
1388 "PID file %s not readable (yet?) after %s.",
1389 s->pid_file, service_state_to_string(s->state));
1393 r = parse_pid(k, &pid);
1396 log_info_unit(UNIT(s)->id,
1397 "Failed to read PID from file %s: %s",
1398 s->pid_file, strerror(-r));
1402 if (kill(pid, 0) < 0 && errno != EPERM) {
1404 log_info_unit(UNIT(s)->id,
1405 "PID %lu read from file %s does not exist.",
1406 (unsigned long) pid, s->pid_file);
1410 if (s->main_pid_known) {
1411 if (pid == s->main_pid)
1414 log_debug_unit(UNIT(s)->id,
1415 "Main PID changing: %lu -> %lu",
1416 (unsigned long) s->main_pid, (unsigned long) pid);
1417 service_unwatch_main_pid(s);
1418 s->main_pid_known = false;
1420 log_debug_unit(UNIT(s)->id,
1421 "Main PID loaded: %lu", (unsigned long) pid);
1423 r = service_set_main_pid(s, pid);
1427 r = unit_watch_pid(UNIT(s), pid);
1429 /* FIXME: we need to do something here */
1430 log_warning_unit(UNIT(s)->id,
1431 "Failed to watch PID %lu from service %s",
1432 (unsigned long) pid, UNIT(s)->id);
1439 static int service_search_main_pid(Service *s) {
1445 /* If we know it anyway, don't ever fallback to unreliable
1447 if (s->main_pid_known)
1450 if (!s->guess_main_pid)
1453 assert(s->main_pid <= 0);
1455 pid = unit_search_main_pid(UNIT(s));
1459 log_debug_unit(UNIT(s)->id,
1460 "Main PID guessed: %lu", (unsigned long) pid);
1461 r = service_set_main_pid(s, pid);
1465 r = unit_watch_pid(UNIT(s), pid);
1467 /* FIXME: we need to do something here */
1468 log_warning_unit(UNIT(s)->id,
1469 "Failed to watch PID %lu from service %s",
1470 (unsigned long) pid, UNIT(s)->id);
1476 static void service_set_state(Service *s, ServiceState state) {
1477 ServiceState old_state;
1478 const UnitActiveState *table;
1482 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1484 old_state = s->state;
1487 service_unwatch_pid_file(s);
1490 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1492 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
1493 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
1494 SERVICE_AUTO_RESTART))
1495 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1498 SERVICE_START, SERVICE_START_POST,
1499 SERVICE_RUNNING, SERVICE_RELOAD,
1500 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) {
1501 service_unwatch_main_pid(s);
1502 s->main_command = NULL;
1506 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1508 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
1509 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1510 service_unwatch_control_pid(s);
1511 s->control_command = NULL;
1512 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1516 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1517 SERVICE_RUNNING, SERVICE_RELOAD,
1518 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
1519 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
1520 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1521 service_close_socket_fd(s);
1522 service_connection_unref(s);
1525 if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1526 service_stop_watchdog(s);
1528 /* For the inactive states unit_notify() will trim the cgroup,
1529 * but for exit we have to do that ourselves... */
1530 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1531 unit_destroy_cgroup(UNIT(s));
1533 /* For remain_after_exit services, let's see if we can "release" the
1534 * hold on the console, since unit_notify() only does that in case of
1535 * change of state */
1536 if (state == SERVICE_EXITED && s->remain_after_exit &&
1537 UNIT(s)->manager->n_on_console > 0) {
1538 ExecContext *ec = unit_get_exec_context(UNIT(s));
1539 if (ec && exec_context_may_touch_console(ec)) {
1540 Manager *m = UNIT(s)->manager;
1543 if (m->n_on_console == 0)
1544 /* unset no_console_output flag, since the console is free */
1545 m->no_console_output = false;
1549 if (old_state != state)
1550 log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1552 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1553 s->reload_result = SERVICE_SUCCESS;
1556 static int service_coldplug(Unit *u) {
1557 Service *s = SERVICE(u);
1561 assert(s->state == SERVICE_DEAD);
1563 if (s->deserialized_state != s->state) {
1565 if (s->deserialized_state == SERVICE_START_PRE ||
1566 s->deserialized_state == SERVICE_START ||
1567 s->deserialized_state == SERVICE_START_POST ||
1568 s->deserialized_state == SERVICE_RELOAD ||
1569 s->deserialized_state == SERVICE_STOP ||
1570 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1571 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1572 s->deserialized_state == SERVICE_STOP_POST ||
1573 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1574 s->deserialized_state == SERVICE_FINAL_SIGKILL) {
1578 k = s->deserialized_state == SERVICE_START_PRE || s->deserialized_state == SERVICE_START ||
1579 s->deserialized_state == SERVICE_START_POST || s->deserialized_state == SERVICE_RELOAD ?
1580 s->timeout_start_usec : s->timeout_stop_usec;
1582 /* For the start/stop timeouts 0 means off */
1584 r = service_arm_timer(s, k);
1590 if (s->deserialized_state == SERVICE_AUTO_RESTART) {
1592 /* The restart timeouts 0 means immediately */
1593 r = service_arm_timer(s, s->restart_usec);
1598 if ((s->deserialized_state == SERVICE_START &&
1599 (s->type == SERVICE_FORKING ||
1600 s->type == SERVICE_DBUS ||
1601 s->type == SERVICE_ONESHOT ||
1602 s->type == SERVICE_NOTIFY)) ||
1603 s->deserialized_state == SERVICE_START_POST ||
1604 s->deserialized_state == SERVICE_RUNNING ||
1605 s->deserialized_state == SERVICE_RELOAD ||
1606 s->deserialized_state == SERVICE_STOP ||
1607 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1608 s->deserialized_state == SERVICE_STOP_SIGKILL)
1609 if (s->main_pid > 0) {
1610 r = unit_watch_pid(UNIT(s), s->main_pid);
1615 if (s->deserialized_state == SERVICE_START_PRE ||
1616 s->deserialized_state == SERVICE_START ||
1617 s->deserialized_state == SERVICE_START_POST ||
1618 s->deserialized_state == SERVICE_RELOAD ||
1619 s->deserialized_state == SERVICE_STOP ||
1620 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1621 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1622 s->deserialized_state == SERVICE_STOP_POST ||
1623 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1624 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1625 if (s->control_pid > 0) {
1626 r = unit_watch_pid(UNIT(s), s->control_pid);
1631 if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1632 service_start_watchdog(s);
1634 service_set_state(s, s->deserialized_state);
1640 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1644 unsigned rn_fds = 0;
1651 if (s->socket_fd >= 0)
1654 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1659 if (u->type != UNIT_SOCKET)
1664 r = socket_collect_fds(sock, &cfds, &cn_fds);
1677 t = new(int, rn_fds+cn_fds);
1684 memcpy(t, rfds, rn_fds * sizeof(int));
1685 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1690 rn_fds = rn_fds+cn_fds;
1705 static int service_spawn(
1710 bool apply_permissions,
1712 bool apply_tty_stdin,
1713 bool set_notify_socket,
1720 _cleanup_free_ int *fdsbuf = NULL;
1721 unsigned n_fds = 0, n_env = 0;
1722 _cleanup_strv_free_ char
1723 **argv = NULL, **final_env = NULL, **our_env = NULL;
1730 unit_realize_cgroup(UNIT(s));
1732 r = unit_setup_exec_runtime(UNIT(s));
1737 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1738 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1739 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1741 if (s->socket_fd >= 0) {
1742 fds = &s->socket_fd;
1745 r = service_collect_fds(s, &fdsbuf, &n_fds);
1753 if (timeout && s->timeout_start_usec > 0) {
1754 r = service_arm_timer(s, s->timeout_start_usec);
1758 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1760 r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
1764 our_env = new0(char*, 5);
1770 if (set_notify_socket)
1771 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1776 if (s->main_pid > 0)
1777 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1782 if (s->watchdog_usec > 0)
1783 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1788 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1789 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1794 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1800 if (is_control && UNIT(s)->cgroup_path) {
1801 path = strappenda(UNIT(s)->cgroup_path, "/control");
1802 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1804 path = UNIT(s)->cgroup_path;
1814 UNIT(s)->manager->confirm_spawn,
1815 UNIT(s)->manager->cgroup_supported,
1818 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1824 r = unit_watch_pid(UNIT(s), pid);
1826 /* FIXME: we need to do something here */
1835 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1840 static int main_pid_good(Service *s) {
1843 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1846 /* If we know the pid file, then lets just check if it is
1848 if (s->main_pid_known) {
1850 /* If it's an alien child let's check if it is still
1852 if (s->main_pid_alien && s->main_pid > 0)
1853 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1855 /* .. otherwise assume we'll get a SIGCHLD for it,
1856 * which we really should wait for to collect exit
1857 * status and code */
1858 return s->main_pid > 0;
1861 /* We don't know the pid */
1865 _pure_ static int control_pid_good(Service *s) {
1868 return s->control_pid > 0;
1871 static int cgroup_good(Service *s) {
1876 if (!UNIT(s)->cgroup_path)
1879 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1886 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1890 if (f != SERVICE_SUCCESS)
1893 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1895 if (allow_restart &&
1896 !s->forbid_restart &&
1897 (s->restart == SERVICE_RESTART_ALWAYS ||
1898 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1899 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1900 (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) ||
1901 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1902 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1903 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1904 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1905 (s->result != SERVICE_FAILURE_SIGNAL ||
1906 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) {
1908 r = service_arm_timer(s, s->restart_usec);
1912 service_set_state(s, SERVICE_AUTO_RESTART);
1915 s->forbid_restart = false;
1917 /* we want fresh tmpdirs in case service is started again immediately */
1918 exec_runtime_destroy(s->exec_runtime);
1919 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
1921 /* Try to delete the pid file. At this point it will be
1922 * out-of-date, and some software might be confused by it, so
1923 * let's remove it. */
1925 unlink_noerrno(s->pid_file);
1930 log_warning_unit(UNIT(s)->id,
1931 "%s failed to run install restart timer: %s",
1932 UNIT(s)->id, strerror(-r));
1933 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1936 static void service_enter_stop_post(Service *s, ServiceResult f) {
1940 if (f != SERVICE_SUCCESS)
1943 service_unwatch_control_pid(s);
1945 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1946 if (s->control_command) {
1947 s->control_command_id = SERVICE_EXEC_STOP_POST;
1949 r = service_spawn(s,
1953 !s->permissions_start_only,
1954 !s->root_directory_start_only,
1963 service_set_state(s, SERVICE_STOP_POST);
1965 service_enter_dead(s, SERVICE_SUCCESS, true);
1970 log_warning_unit(UNIT(s)->id,
1971 "%s failed to run 'stop-post' task: %s",
1972 UNIT(s)->id, strerror(-r));
1973 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1976 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1981 if (f != SERVICE_SUCCESS)
1984 r = unit_kill_context(
1987 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
1995 if (s->timeout_stop_usec > 0) {
1996 r = service_arm_timer(s, s->timeout_stop_usec);
2001 service_set_state(s, state);
2002 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2003 service_enter_stop_post(s, SERVICE_SUCCESS);
2005 service_enter_dead(s, SERVICE_SUCCESS, true);
2010 log_warning_unit(UNIT(s)->id,
2011 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2013 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2014 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2016 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2019 static void service_enter_stop(Service *s, ServiceResult f) {
2024 if (f != SERVICE_SUCCESS)
2027 service_unwatch_control_pid(s);
2029 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2030 if (s->control_command) {
2031 s->control_command_id = SERVICE_EXEC_STOP;
2033 r = service_spawn(s,
2037 !s->permissions_start_only,
2038 !s->root_directory_start_only,
2046 service_set_state(s, SERVICE_STOP);
2048 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2053 log_warning_unit(UNIT(s)->id,
2054 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2055 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2058 static void service_enter_running(Service *s, ServiceResult f) {
2059 int main_pid_ok, cgroup_ok;
2062 if (f != SERVICE_SUCCESS)
2065 main_pid_ok = main_pid_good(s);
2066 cgroup_ok = cgroup_good(s);
2068 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2069 (s->bus_name_good || s->type != SERVICE_DBUS))
2070 service_set_state(s, SERVICE_RUNNING);
2071 else if (s->remain_after_exit)
2072 service_set_state(s, SERVICE_EXITED);
2074 service_enter_stop(s, SERVICE_SUCCESS);
2077 static void service_enter_start_post(Service *s) {
2081 service_unwatch_control_pid(s);
2082 service_reset_watchdog(s);
2084 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2085 if (s->control_command) {
2086 s->control_command_id = SERVICE_EXEC_START_POST;
2088 r = service_spawn(s,
2092 !s->permissions_start_only,
2093 !s->root_directory_start_only,
2101 service_set_state(s, SERVICE_START_POST);
2103 service_enter_running(s, SERVICE_SUCCESS);
2108 log_warning_unit(UNIT(s)->id,
2109 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2110 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2113 static void service_kill_control_processes(Service *s) {
2116 if (!UNIT(s)->cgroup_path)
2119 p = strappenda(UNIT(s)->cgroup_path, "/control");
2120 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
2123 static void service_enter_start(Service *s) {
2130 assert(s->exec_command[SERVICE_EXEC_START]);
2131 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2133 service_unwatch_control_pid(s);
2134 service_unwatch_main_pid(s);
2136 /* We want to ensure that nobody leaks processes from
2137 * START_PRE here, so let's go on a killing spree, People
2138 * should not spawn long running processes from START_PRE. */
2139 service_kill_control_processes(s);
2141 if (s->type == SERVICE_FORKING) {
2142 s->control_command_id = SERVICE_EXEC_START;
2143 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2145 s->main_command = NULL;
2147 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2148 s->control_command = NULL;
2150 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2153 r = service_spawn(s,
2155 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2156 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2161 s->notify_access != NOTIFY_NONE,
2167 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2168 /* For simple services we immediately start
2169 * the START_POST binaries. */
2171 service_set_main_pid(s, pid);
2172 service_enter_start_post(s);
2174 } else if (s->type == SERVICE_FORKING) {
2176 /* For forking services we wait until the start
2177 * process exited. */
2179 s->control_pid = pid;
2180 service_set_state(s, SERVICE_START);
2182 } else if (s->type == SERVICE_ONESHOT ||
2183 s->type == SERVICE_DBUS ||
2184 s->type == SERVICE_NOTIFY) {
2186 /* For oneshot services we wait until the start
2187 * process exited, too, but it is our main process. */
2189 /* For D-Bus services we know the main pid right away,
2190 * but wait for the bus name to appear on the
2191 * bus. Notify services are similar. */
2193 service_set_main_pid(s, pid);
2194 service_set_state(s, SERVICE_START);
2196 assert_not_reached("Unknown service type");
2201 log_warning_unit(UNIT(s)->id,
2202 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2203 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2206 static void service_enter_start_pre(Service *s) {
2211 service_unwatch_control_pid(s);
2213 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2214 if (s->control_command) {
2215 /* Before we start anything, let's clear up what might
2216 * be left from previous runs. */
2217 service_kill_control_processes(s);
2219 s->control_command_id = SERVICE_EXEC_START_PRE;
2221 r = service_spawn(s,
2225 !s->permissions_start_only,
2226 !s->root_directory_start_only,
2234 service_set_state(s, SERVICE_START_PRE);
2236 service_enter_start(s);
2241 log_warning_unit(UNIT(s)->id,
2242 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2243 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2246 static void service_enter_restart(Service *s) {
2247 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2252 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2253 /* Don't restart things if we are going down anyway */
2254 log_info_unit(UNIT(s)->id,
2255 "Stop job pending for unit, delaying automatic restart.");
2257 r = service_arm_timer(s, s->restart_usec);
2264 /* Any units that are bound to this service must also be
2265 * restarted. We use JOB_RESTART (instead of the more obvious
2266 * JOB_START) here so that those dependency jobs will be added
2268 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2272 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2273 * it will be canceled as part of the service_stop() call that
2274 * is executed as part of JOB_RESTART. */
2276 log_debug_unit(UNIT(s)->id,
2277 "%s scheduled restart job.", UNIT(s)->id);
2281 log_warning_unit(UNIT(s)->id,
2282 "%s failed to schedule restart job: %s",
2283 UNIT(s)->id, bus_error_message(&error, -r));
2284 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2287 static void service_enter_reload(Service *s) {
2292 service_unwatch_control_pid(s);
2294 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2295 if (s->control_command) {
2296 s->control_command_id = SERVICE_EXEC_RELOAD;
2298 r = service_spawn(s,
2302 !s->permissions_start_only,
2303 !s->root_directory_start_only,
2311 service_set_state(s, SERVICE_RELOAD);
2313 service_enter_running(s, SERVICE_SUCCESS);
2318 log_warning_unit(UNIT(s)->id,
2319 "%s failed to run 'reload' task: %s",
2320 UNIT(s)->id, strerror(-r));
2321 s->reload_result = SERVICE_FAILURE_RESOURCES;
2322 service_enter_running(s, SERVICE_SUCCESS);
2325 static void service_run_next_control(Service *s) {
2329 assert(s->control_command);
2330 assert(s->control_command->command_next);
2332 assert(s->control_command_id != SERVICE_EXEC_START);
2334 s->control_command = s->control_command->command_next;
2335 service_unwatch_control_pid(s);
2337 r = service_spawn(s,
2341 !s->permissions_start_only,
2342 !s->root_directory_start_only,
2343 s->control_command_id == SERVICE_EXEC_START_PRE ||
2344 s->control_command_id == SERVICE_EXEC_STOP_POST,
2354 log_warning_unit(UNIT(s)->id,
2355 "%s failed to run next control task: %s",
2356 UNIT(s)->id, strerror(-r));
2358 if (s->state == SERVICE_START_PRE)
2359 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2360 else if (s->state == SERVICE_STOP)
2361 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2362 else if (s->state == SERVICE_STOP_POST)
2363 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2364 else if (s->state == SERVICE_RELOAD) {
2365 s->reload_result = SERVICE_FAILURE_RESOURCES;
2366 service_enter_running(s, SERVICE_SUCCESS);
2368 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2371 static void service_run_next_main(Service *s) {
2376 assert(s->main_command);
2377 assert(s->main_command->command_next);
2378 assert(s->type == SERVICE_ONESHOT);
2380 s->main_command = s->main_command->command_next;
2381 service_unwatch_main_pid(s);
2383 r = service_spawn(s,
2390 s->notify_access != NOTIFY_NONE,
2396 service_set_main_pid(s, pid);
2401 log_warning_unit(UNIT(s)->id,
2402 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2403 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2406 static int service_start_limit_test(Service *s) {
2409 if (ratelimit_test(&s->start_limit))
2412 switch (s->start_limit_action) {
2414 case SERVICE_START_LIMIT_NONE:
2415 log_warning_unit(UNIT(s)->id,
2416 "%s start request repeated too quickly, refusing to start.",
2420 case SERVICE_START_LIMIT_REBOOT: {
2421 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2424 log_warning_unit(UNIT(s)->id,
2425 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2427 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2428 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2429 true, &error, NULL);
2431 log_error_unit(UNIT(s)->id,
2432 "Failed to reboot: %s.", bus_error_message(&error, r));
2437 case SERVICE_START_LIMIT_REBOOT_FORCE:
2438 log_warning_unit(UNIT(s)->id,
2439 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2440 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2443 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2444 log_warning_unit(UNIT(s)->id,
2445 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2447 reboot(RB_AUTOBOOT);
2451 log_error_unit(UNIT(s)->id,
2452 "start limit action=%i", s->start_limit_action);
2453 assert_not_reached("Unknown StartLimitAction.");
2459 static int service_start(Unit *u) {
2460 Service *s = SERVICE(u);
2465 /* We cannot fulfill this request right now, try again later
2467 if (s->state == SERVICE_STOP ||
2468 s->state == SERVICE_STOP_SIGTERM ||
2469 s->state == SERVICE_STOP_SIGKILL ||
2470 s->state == SERVICE_STOP_POST ||
2471 s->state == SERVICE_FINAL_SIGTERM ||
2472 s->state == SERVICE_FINAL_SIGKILL)
2475 /* Already on it! */
2476 if (s->state == SERVICE_START_PRE ||
2477 s->state == SERVICE_START ||
2478 s->state == SERVICE_START_POST)
2481 /* A service that will be restarted must be stopped first to
2482 * trigger BindsTo and/or OnFailure dependencies. If a user
2483 * does not want to wait for the holdoff time to elapse, the
2484 * service should be manually restarted, not started. We
2485 * simply return EAGAIN here, so that any start jobs stay
2486 * queued, and assume that the auto restart timer will
2487 * eventually trigger the restart. */
2488 if (s->state == SERVICE_AUTO_RESTART)
2491 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2493 /* Make sure we don't enter a busy loop of some kind. */
2494 r = service_start_limit_test(s);
2496 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2500 s->result = SERVICE_SUCCESS;
2501 s->reload_result = SERVICE_SUCCESS;
2502 s->main_pid_known = false;
2503 s->main_pid_alien = false;
2504 s->forbid_restart = false;
2506 service_enter_start_pre(s);
2510 static int service_stop(Unit *u) {
2511 Service *s = SERVICE(u);
2515 /* Don't create restart jobs from here. */
2516 s->forbid_restart = true;
2519 if (s->state == SERVICE_STOP ||
2520 s->state == SERVICE_STOP_SIGTERM ||
2521 s->state == SERVICE_STOP_SIGKILL ||
2522 s->state == SERVICE_STOP_POST ||
2523 s->state == SERVICE_FINAL_SIGTERM ||
2524 s->state == SERVICE_FINAL_SIGKILL)
2527 /* A restart will be scheduled or is in progress. */
2528 if (s->state == SERVICE_AUTO_RESTART) {
2529 service_set_state(s, SERVICE_DEAD);
2533 /* If there's already something running we go directly into
2535 if (s->state == SERVICE_START_PRE ||
2536 s->state == SERVICE_START ||
2537 s->state == SERVICE_START_POST ||
2538 s->state == SERVICE_RELOAD) {
2539 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2543 assert(s->state == SERVICE_RUNNING ||
2544 s->state == SERVICE_EXITED);
2546 service_enter_stop(s, SERVICE_SUCCESS);
2550 static int service_reload(Unit *u) {
2551 Service *s = SERVICE(u);
2555 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2557 service_enter_reload(s);
2561 _pure_ static bool service_can_reload(Unit *u) {
2562 Service *s = SERVICE(u);
2566 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2569 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2570 Service *s = SERVICE(u);
2576 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2577 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2578 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2580 if (s->control_pid > 0)
2581 unit_serialize_item_format(u, f, "control-pid", "%lu",
2582 (unsigned long) s->control_pid);
2584 if (s->main_pid_known && s->main_pid > 0)
2585 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2587 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2590 unit_serialize_item(u, f, "status-text", s->status_text);
2592 /* FIXME: There's a minor uncleanliness here: if there are
2593 * multiple commands attached here, we will start from the
2594 * first one again */
2595 if (s->control_command_id >= 0)
2596 unit_serialize_item(u, f, "control-command",
2597 service_exec_command_to_string(s->control_command_id));
2599 if (s->socket_fd >= 0) {
2602 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2605 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2608 if (s->main_exec_status.pid > 0) {
2609 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2610 (unsigned long) s->main_exec_status.pid);
2611 dual_timestamp_serialize(f, "main-exec-status-start",
2612 &s->main_exec_status.start_timestamp);
2613 dual_timestamp_serialize(f, "main-exec-status-exit",
2614 &s->main_exec_status.exit_timestamp);
2616 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2617 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2618 s->main_exec_status.code);
2619 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2620 s->main_exec_status.status);
2623 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2624 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2626 if (s->forbid_restart)
2627 unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart));
2632 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2633 Service *s = SERVICE(u);
2640 if (streq(key, "state")) {
2643 state = service_state_from_string(value);
2645 log_debug_unit(u->id, "Failed to parse state value %s", value);
2647 s->deserialized_state = state;
2648 } else if (streq(key, "result")) {
2651 f = service_result_from_string(value);
2653 log_debug_unit(u->id, "Failed to parse result value %s", value);
2654 else if (f != SERVICE_SUCCESS)
2657 } else if (streq(key, "reload-result")) {
2660 f = service_result_from_string(value);
2662 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2663 else if (f != SERVICE_SUCCESS)
2664 s->reload_result = f;
2666 } else if (streq(key, "control-pid")) {
2669 if (parse_pid(value, &pid) < 0)
2670 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2672 s->control_pid = pid;
2673 } else if (streq(key, "main-pid")) {
2676 if (parse_pid(value, &pid) < 0)
2677 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2679 service_set_main_pid(s, pid);
2680 unit_watch_pid(UNIT(s), pid);
2682 } else if (streq(key, "main-pid-known")) {
2685 b = parse_boolean(value);
2687 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2689 s->main_pid_known = b;
2690 } else if (streq(key, "status-text")) {
2697 free(s->status_text);
2701 } else if (streq(key, "control-command")) {
2702 ServiceExecCommand id;
2704 id = service_exec_command_from_string(value);
2706 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2708 s->control_command_id = id;
2709 s->control_command = s->exec_command[id];
2711 } else if (streq(key, "socket-fd")) {
2714 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2715 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2718 if (s->socket_fd >= 0)
2719 close_nointr_nofail(s->socket_fd);
2720 s->socket_fd = fdset_remove(fds, fd);
2722 } else if (streq(key, "main-exec-status-pid")) {
2725 if (parse_pid(value, &pid) < 0)
2726 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2728 s->main_exec_status.pid = pid;
2729 } else if (streq(key, "main-exec-status-code")) {
2732 if (safe_atoi(value, &i) < 0)
2733 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2735 s->main_exec_status.code = i;
2736 } else if (streq(key, "main-exec-status-status")) {
2739 if (safe_atoi(value, &i) < 0)
2740 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2742 s->main_exec_status.status = i;
2743 } else if (streq(key, "main-exec-status-start"))
2744 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2745 else if (streq(key, "main-exec-status-exit"))
2746 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2747 else if (streq(key, "watchdog-timestamp"))
2748 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2749 else if (streq(key, "forbid-restart")) {
2752 b = parse_boolean(value);
2754 log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value);
2756 s->forbid_restart = b;
2758 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2763 _pure_ static UnitActiveState service_active_state(Unit *u) {
2764 const UnitActiveState *table;
2768 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2770 return table[SERVICE(u)->state];
2773 static const char *service_sub_state_to_string(Unit *u) {
2776 return service_state_to_string(SERVICE(u)->state);
2779 static bool service_check_gc(Unit *u) {
2780 Service *s = SERVICE(u);
2784 /* Never clean up services that still have a process around,
2785 * even if the service is formally dead. */
2786 if (cgroup_good(s) > 0 ||
2787 main_pid_good(s) > 0 ||
2788 control_pid_good(s) > 0)
2791 #ifdef HAVE_SYSV_COMPAT
2799 _pure_ static bool service_check_snapshot(Unit *u) {
2800 Service *s = SERVICE(u);
2804 return (s->socket_fd < 0);
2807 static int service_retry_pid_file(Service *s) {
2810 assert(s->pid_file);
2811 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2813 r = service_load_pid_file(s, false);
2817 service_unwatch_pid_file(s);
2819 service_enter_running(s, SERVICE_SUCCESS);
2823 static int service_watch_pid_file(Service *s) {
2826 log_debug_unit(UNIT(s)->id,
2827 "Setting watch for %s's PID file %s",
2828 UNIT(s)->id, s->pid_file_pathspec->path);
2829 r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io);
2833 /* the pidfile might have appeared just before we set the watch */
2834 log_debug_unit(UNIT(s)->id,
2835 "Trying to read %s's PID file %s in case it changed",
2836 UNIT(s)->id, s->pid_file_pathspec->path);
2837 service_retry_pid_file(s);
2841 log_error_unit(UNIT(s)->id,
2842 "Failed to set a watch for %s's PID file %s: %s",
2843 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2844 service_unwatch_pid_file(s);
2848 static int service_demand_pid_file(Service *s) {
2851 assert(s->pid_file);
2852 assert(!s->pid_file_pathspec);
2854 ps = new0(PathSpec, 1);
2859 ps->path = strdup(s->pid_file);
2865 path_kill_slashes(ps->path);
2867 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2868 * keep their PID file open all the time. */
2869 ps->type = PATH_MODIFIED;
2870 ps->inotify_fd = -1;
2872 s->pid_file_pathspec = ps;
2874 return service_watch_pid_file(s);
2877 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) {
2878 PathSpec *p = userdata;
2883 s = SERVICE(p->unit);
2887 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2888 assert(s->pid_file_pathspec);
2889 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2891 log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id);
2893 if (path_spec_fd_event(p, events) < 0)
2896 if (service_retry_pid_file(s) == 0)
2899 if (service_watch_pid_file(s) < 0)
2905 service_unwatch_pid_file(s);
2906 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2910 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2911 Service *s = SERVICE(u);
2917 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2918 is_clean_exit_lsb(code, status, &s->success_status))
2919 f = SERVICE_SUCCESS;
2920 else if (code == CLD_EXITED)
2921 f = SERVICE_FAILURE_EXIT_CODE;
2922 else if (code == CLD_KILLED)
2923 f = SERVICE_FAILURE_SIGNAL;
2924 else if (code == CLD_DUMPED)
2925 f = SERVICE_FAILURE_CORE_DUMP;
2927 assert_not_reached("Unknown code");
2929 if (s->main_pid == pid) {
2930 /* Forking services may occasionally move to a new PID.
2931 * As long as they update the PID file before exiting the old
2932 * PID, they're fine. */
2933 if (service_load_pid_file(s, false) == 0)
2937 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2939 if (s->main_command) {
2940 /* If this is not a forking service than the
2941 * main process got started and hence we copy
2942 * the exit status so that it is recorded both
2943 * as main and as control process exit
2946 s->main_command->exec_status = s->main_exec_status;
2948 if (s->main_command->ignore)
2949 f = SERVICE_SUCCESS;
2950 } else if (s->exec_command[SERVICE_EXEC_START]) {
2952 /* If this is a forked process, then we should
2953 * ignore the return value if this was
2954 * configured for the starter process */
2956 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2957 f = SERVICE_SUCCESS;
2960 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2962 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2963 u->id, sigchld_code_to_string(code), status,
2964 strna(code == CLD_EXITED
2965 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2966 : signal_to_string(status)),
2967 "EXIT_CODE=%s", sigchld_code_to_string(code),
2968 "EXIT_STATUS=%i", status,
2971 if (f != SERVICE_SUCCESS)
2974 if (s->main_command &&
2975 s->main_command->command_next &&
2976 f == SERVICE_SUCCESS) {
2978 /* There is another command to *
2979 * execute, so let's do that. */
2981 log_debug_unit(u->id,
2982 "%s running next main command for state %s",
2983 u->id, service_state_to_string(s->state));
2984 service_run_next_main(s);
2988 /* The service exited, so the service is officially
2990 s->main_command = NULL;
2994 case SERVICE_START_POST:
2995 case SERVICE_RELOAD:
2997 /* Need to wait until the operation is
3002 if (s->type == SERVICE_ONESHOT) {
3003 /* This was our main goal, so let's go on */
3004 if (f == SERVICE_SUCCESS)
3005 service_enter_start_post(s);
3007 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3013 case SERVICE_RUNNING:
3014 service_enter_running(s, f);
3017 case SERVICE_STOP_SIGTERM:
3018 case SERVICE_STOP_SIGKILL:
3020 if (!control_pid_good(s))
3021 service_enter_stop_post(s, f);
3023 /* If there is still a control process, wait for that first */
3027 assert_not_reached("Uh, main process died at wrong time.");
3031 } else if (s->control_pid == pid) {
3034 if (s->control_command) {
3035 exec_status_exit(&s->control_command->exec_status,
3036 &s->exec_context, pid, code, status);
3038 if (s->control_command->ignore)
3039 f = SERVICE_SUCCESS;
3042 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3043 "%s: control process exited, code=%s status=%i",
3044 u->id, sigchld_code_to_string(code), status);
3046 if (f != SERVICE_SUCCESS)
3049 /* Immediately get rid of the cgroup, so that the
3050 * kernel doesn't delay the cgroup empty messages for
3051 * the service cgroup any longer than necessary */
3052 service_kill_control_processes(s);
3054 if (s->control_command &&
3055 s->control_command->command_next &&
3056 f == SERVICE_SUCCESS) {
3058 /* There is another command to *
3059 * execute, so let's do that. */
3061 log_debug_unit(u->id,
3062 "%s running next control command for state %s",
3063 u->id, service_state_to_string(s->state));
3064 service_run_next_control(s);
3067 /* No further commands for this step, so let's
3068 * figure out what to do next */
3070 s->control_command = NULL;
3071 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3073 log_debug_unit(u->id,
3074 "%s got final SIGCHLD for state %s",
3075 u->id, service_state_to_string(s->state));
3079 case SERVICE_START_PRE:
3080 if (f == SERVICE_SUCCESS)
3081 service_enter_start(s);
3083 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3087 if (s->type != SERVICE_FORKING)
3088 /* Maybe spurious event due to a reload that changed the type? */
3091 if (f != SERVICE_SUCCESS) {
3092 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3097 bool has_start_post;
3100 /* Let's try to load the pid file here if we can.
3101 * The PID file might actually be created by a START_POST
3102 * script. In that case don't worry if the loading fails. */
3104 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3105 r = service_load_pid_file(s, !has_start_post);
3106 if (!has_start_post && r < 0) {
3107 r = service_demand_pid_file(s);
3108 if (r < 0 || !cgroup_good(s))
3109 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3113 service_search_main_pid(s);
3115 service_enter_start_post(s);
3118 case SERVICE_START_POST:
3119 if (f != SERVICE_SUCCESS) {
3120 service_enter_stop(s, f);
3127 r = service_load_pid_file(s, true);
3129 r = service_demand_pid_file(s);
3130 if (r < 0 || !cgroup_good(s))
3131 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3135 service_search_main_pid(s);
3137 service_enter_running(s, SERVICE_SUCCESS);
3140 case SERVICE_RELOAD:
3141 if (f == SERVICE_SUCCESS) {
3142 service_load_pid_file(s, true);
3143 service_search_main_pid(s);
3146 s->reload_result = f;
3147 service_enter_running(s, SERVICE_SUCCESS);
3151 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3154 case SERVICE_STOP_SIGTERM:
3155 case SERVICE_STOP_SIGKILL:
3156 if (main_pid_good(s) <= 0)
3157 service_enter_stop_post(s, f);
3159 /* If there is still a service
3160 * process around, wait until
3161 * that one quit, too */
3164 case SERVICE_STOP_POST:
3165 case SERVICE_FINAL_SIGTERM:
3166 case SERVICE_FINAL_SIGKILL:
3167 service_enter_dead(s, f, true);
3171 assert_not_reached("Uh, control process died at wrong time.");
3176 /* Notify clients about changed exit status */
3177 unit_add_to_dbus_queue(u);
3180 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
3181 Service *s = SERVICE(userdata);
3184 assert(source == s->timer_event_source);
3188 case SERVICE_START_PRE:
3190 log_warning_unit(UNIT(s)->id,
3191 "%s operation timed out. Terminating.", UNIT(s)->id);
3192 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3195 case SERVICE_START_POST:
3196 log_warning_unit(UNIT(s)->id,
3197 "%s operation timed out. Stopping.", UNIT(s)->id);
3198 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3201 case SERVICE_RELOAD:
3202 log_warning_unit(UNIT(s)->id,
3203 "%s operation timed out. Stopping.", UNIT(s)->id);
3204 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3205 service_enter_running(s, SERVICE_SUCCESS);
3209 log_warning_unit(UNIT(s)->id,
3210 "%s stopping timed out. Terminating.", UNIT(s)->id);
3211 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3214 case SERVICE_STOP_SIGTERM:
3215 if (s->kill_context.send_sigkill) {
3216 log_warning_unit(UNIT(s)->id,
3217 "%s stopping timed out. Killing.", UNIT(s)->id);
3218 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3220 log_warning_unit(UNIT(s)->id,
3221 "%s stopping timed out. Skipping SIGKILL.", UNIT(s)->id);
3222 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3227 case SERVICE_STOP_SIGKILL:
3228 /* Uh, we sent a SIGKILL and it is still not gone?
3229 * Must be something we cannot kill, so let's just be
3230 * weirded out and continue */
3232 log_warning_unit(UNIT(s)->id,
3233 "%s still around after SIGKILL. Ignoring.", UNIT(s)->id);
3234 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3237 case SERVICE_STOP_POST:
3238 log_warning_unit(UNIT(s)->id,
3239 "%s stopping timed out (2). Terminating.", UNIT(s)->id);
3240 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3243 case SERVICE_FINAL_SIGTERM:
3244 if (s->kill_context.send_sigkill) {
3245 log_warning_unit(UNIT(s)->id,
3246 "%s stopping timed out (2). Killing.", UNIT(s)->id);
3247 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3249 log_warning_unit(UNIT(s)->id,
3250 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3252 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3257 case SERVICE_FINAL_SIGKILL:
3258 log_warning_unit(UNIT(s)->id,
3259 "%s still around after SIGKILL (2). Entering failed mode.", UNIT(s)->id);
3260 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3263 case SERVICE_AUTO_RESTART:
3264 log_info_unit(UNIT(s)->id,
3265 "%s holdoff time over, scheduling restart.", UNIT(s)->id);
3266 service_enter_restart(s);
3270 assert_not_reached("Timeout at wrong time.");
3276 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) {
3277 Service *s = SERVICE(userdata);
3280 assert(source == s->watchdog_event_source);
3282 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
3283 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG);
3288 static void service_notify_cgroup_empty_event(Unit *u) {
3289 Service *s = SERVICE(u);
3293 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
3297 /* Waiting for SIGCHLD is usually more interesting,
3298 * because it includes return codes/signals. Which is
3299 * why we ignore the cgroup events for most cases,
3300 * except when we don't know pid which to expect the
3304 case SERVICE_START_POST:
3305 /* If we were hoping for the daemon to write its PID file,
3306 * we can give up now. */
3307 if (s->pid_file_pathspec) {
3308 log_warning_unit(u->id,
3309 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3310 service_unwatch_pid_file(s);
3311 if (s->state == SERVICE_START)
3312 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3314 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3318 case SERVICE_RUNNING:
3319 /* service_enter_running() will figure out what to do */
3320 service_enter_running(s, SERVICE_SUCCESS);
3323 case SERVICE_STOP_SIGTERM:
3324 case SERVICE_STOP_SIGKILL:
3326 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3327 service_enter_stop_post(s, SERVICE_SUCCESS);
3331 case SERVICE_FINAL_SIGTERM:
3332 case SERVICE_FINAL_SIGKILL:
3333 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3334 service_enter_dead(s, SERVICE_SUCCESS, true);
3343 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3344 Service *s = SERVICE(u);
3349 if (s->notify_access == NOTIFY_NONE) {
3350 log_warning_unit(u->id,
3351 "%s: Got notification message from PID %lu, but reception is disabled.",
3352 u->id, (unsigned long) pid);
3356 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3357 log_warning_unit(u->id,
3358 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3359 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3363 log_debug_unit(u->id,
3364 "%s: Got message", u->id);
3366 /* Interpret MAINPID= */
3367 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3368 (s->state == SERVICE_START ||
3369 s->state == SERVICE_START_POST ||
3370 s->state == SERVICE_RUNNING ||
3371 s->state == SERVICE_RELOAD)) {
3373 if (parse_pid(e + 8, &pid) < 0)
3374 log_warning_unit(u->id,
3375 "Failed to parse notification message %s", e);
3377 log_debug_unit(u->id,
3378 "%s: got %s", u->id, e);
3379 service_set_main_pid(s, pid);
3380 unit_watch_pid(UNIT(s), pid);
3384 /* Interpret READY= */
3385 if (s->type == SERVICE_NOTIFY &&
3386 s->state == SERVICE_START &&
3387 strv_find(tags, "READY=1")) {
3388 log_debug_unit(u->id,
3389 "%s: got READY=1", u->id);
3391 service_enter_start_post(s);
3394 /* Interpret STATUS= */
3395 e = strv_find_prefix(tags, "STATUS=");
3401 if (!utf8_is_valid(e+7)) {
3402 log_warning_unit(u->id,
3403 "Status message in notification is not UTF-8 clean.");
3409 log_error_unit(u->id,
3410 "Failed to allocate string.");
3414 log_debug_unit(u->id,
3415 "%s: got %s", u->id, e);
3417 free(s->status_text);
3420 free(s->status_text);
3421 s->status_text = NULL;
3426 if (strv_find(tags, "WATCHDOG=1")) {
3427 log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
3428 service_reset_watchdog(s);
3431 /* Notify clients about changed status or main pid */
3432 unit_add_to_dbus_queue(u);
3435 #ifdef HAVE_SYSV_COMPAT
3437 static int service_enumerate(Manager *m) {
3440 _cleanup_closedir_ DIR *d = NULL;
3441 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3442 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3443 _cleanup_set_free_ Set *shutdown_services = NULL;
3450 if (m->running_as != SYSTEMD_SYSTEM)
3453 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3454 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3458 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3469 if (errno != ENOENT)
3470 log_warning("opendir(%s) failed: %m", path);
3475 while ((de = readdir(d))) {
3478 if (ignore_file(de->d_name))
3481 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3484 if (strlen(de->d_name) < 4)
3487 a = undecchar(de->d_name[1]);
3488 b = undecchar(de->d_name[2]);
3494 fpath = strjoin(path, "/", de->d_name, NULL);
3500 if (access(fpath, X_OK) < 0) {
3502 if (errno != ENOENT)
3503 log_warning("access() failed on %s: %m", fpath);
3509 name = sysv_translate_name(de->d_name + 3);
3515 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3517 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3521 if (de->d_name[0] == 'S') {
3523 if (rcnd_table[i].type == RUNLEVEL_UP) {
3524 SERVICE(service)->sysv_start_priority_from_rcnd =
3525 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3527 SERVICE(service)->sysv_enabled = true;
3530 r = set_ensure_allocated(&runlevel_services[i],
3531 trivial_hash_func, trivial_compare_func);
3535 r = set_put(runlevel_services[i], service);
3539 } else if (de->d_name[0] == 'K' &&
3540 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3542 r = set_ensure_allocated(&shutdown_services,
3543 trivial_hash_func, trivial_compare_func);
3547 r = set_put(shutdown_services, service);
3554 /* Now we loaded all stubs and are aware of the lowest
3555 start-up priority for all services, not let's actually load
3556 the services, this will also tell us which services are
3557 actually native now */
3558 manager_dispatch_load_queue(m);
3560 /* If this is a native service, rely on native ways to pull in
3561 * a service, don't pull it in via sysv rcN.d links. */
3562 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3563 SET_FOREACH(service, runlevel_services[i], j) {
3564 service = unit_follow_merge(service);
3566 if (service->fragment_path)
3569 r = unit_add_two_dependencies_by_name_inverse(
3570 service, UNIT_AFTER, UNIT_WANTS,
3571 rcnd_table[i].target, NULL, true);
3576 /* We honour K links only for halt/reboot. For the normal
3577 * runlevels we assume the stop jobs will be implicitly added
3578 * by the core logic. Also, we don't really distinguish here
3579 * between the runlevels 0 and 6 and just add them to the
3580 * special shutdown target. */
3581 SET_FOREACH(service, shutdown_services, j) {
3582 service = unit_follow_merge(service);
3584 if (service->fragment_path)
3587 r = unit_add_two_dependencies_by_name(
3588 service, UNIT_BEFORE, UNIT_CONFLICTS,
3589 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3598 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3599 set_free(runlevel_services[i]);
3605 static void service_bus_name_owner_change(
3608 const char *old_owner,
3609 const char *new_owner) {
3611 Service *s = SERVICE(u);
3617 assert(streq(s->bus_name, name));
3618 assert(old_owner || new_owner);
3620 if (old_owner && new_owner)
3621 log_debug_unit(u->id,
3622 "%s's D-Bus name %s changed owner from %s to %s",
3623 u->id, name, old_owner, new_owner);
3625 log_debug_unit(u->id,
3626 "%s's D-Bus name %s no longer registered by %s",
3627 u->id, name, old_owner);
3629 log_debug_unit(u->id,
3630 "%s's D-Bus name %s now registered by %s",
3631 u->id, name, new_owner);
3633 s->bus_name_good = !!new_owner;
3635 if (s->type == SERVICE_DBUS) {
3637 /* service_enter_running() will figure out what to
3639 if (s->state == SERVICE_RUNNING)
3640 service_enter_running(s, SERVICE_SUCCESS);
3641 else if (s->state == SERVICE_START && new_owner)
3642 service_enter_start_post(s);
3644 } else if (new_owner &&
3646 (s->state == SERVICE_START ||
3647 s->state == SERVICE_START_POST ||
3648 s->state == SERVICE_RUNNING ||
3649 s->state == SERVICE_RELOAD)) {
3651 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
3654 /* Try to acquire PID from bus service */
3656 r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds);
3658 r = sd_bus_creds_get_pid(creds, &pid);
3660 log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3662 service_set_main_pid(s, pid);
3663 unit_watch_pid(UNIT(s), pid);
3668 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3673 /* This is called by the socket code when instantiating a new
3674 * service for a stream socket and the socket needs to be
3677 if (UNIT(s)->load_state != UNIT_LOADED)
3680 if (s->socket_fd >= 0)
3683 if (s->state != SERVICE_DEAD)
3688 unit_ref_set(&s->accept_socket, UNIT(sock));
3690 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3693 static void service_reset_failed(Unit *u) {
3694 Service *s = SERVICE(u);
3698 if (s->state == SERVICE_FAILED)
3699 service_set_state(s, SERVICE_DEAD);
3701 s->result = SERVICE_SUCCESS;
3702 s->reload_result = SERVICE_SUCCESS;
3704 RATELIMIT_RESET(s->start_limit);
3707 static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
3708 Service *s = SERVICE(u);
3710 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3713 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3714 [SERVICE_DEAD] = "dead",
3715 [SERVICE_START_PRE] = "start-pre",
3716 [SERVICE_START] = "start",
3717 [SERVICE_START_POST] = "start-post",
3718 [SERVICE_RUNNING] = "running",
3719 [SERVICE_EXITED] = "exited",
3720 [SERVICE_RELOAD] = "reload",
3721 [SERVICE_STOP] = "stop",
3722 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3723 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3724 [SERVICE_STOP_POST] = "stop-post",
3725 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3726 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3727 [SERVICE_FAILED] = "failed",
3728 [SERVICE_AUTO_RESTART] = "auto-restart",
3731 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3733 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3734 [SERVICE_RESTART_NO] = "no",
3735 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3736 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3737 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3738 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3739 [SERVICE_RESTART_ALWAYS] = "always"
3742 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3744 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3745 [SERVICE_SIMPLE] = "simple",
3746 [SERVICE_FORKING] = "forking",
3747 [SERVICE_ONESHOT] = "oneshot",
3748 [SERVICE_DBUS] = "dbus",
3749 [SERVICE_NOTIFY] = "notify",
3750 [SERVICE_IDLE] = "idle"
3753 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3755 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3756 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3757 [SERVICE_EXEC_START] = "ExecStart",
3758 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3759 [SERVICE_EXEC_RELOAD] = "ExecReload",
3760 [SERVICE_EXEC_STOP] = "ExecStop",
3761 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3764 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3766 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3767 [NOTIFY_NONE] = "none",
3768 [NOTIFY_MAIN] = "main",
3769 [NOTIFY_ALL] = "all"
3772 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3774 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3775 [SERVICE_SUCCESS] = "success",
3776 [SERVICE_FAILURE_RESOURCES] = "resources",
3777 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3778 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3779 [SERVICE_FAILURE_SIGNAL] = "signal",
3780 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3781 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3782 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3785 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3787 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3788 [SERVICE_START_LIMIT_NONE] = "none",
3789 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3790 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3791 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3793 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3795 const UnitVTable service_vtable = {
3796 .object_size = sizeof(Service),
3797 .exec_context_offset = offsetof(Service, exec_context),
3798 .cgroup_context_offset = offsetof(Service, cgroup_context),
3799 .kill_context_offset = offsetof(Service, kill_context),
3800 .exec_runtime_offset = offsetof(Service, exec_runtime),
3806 .private_section = "Service",
3808 .init = service_init,
3809 .done = service_done,
3810 .load = service_load,
3812 .coldplug = service_coldplug,
3814 .dump = service_dump,
3816 .start = service_start,
3817 .stop = service_stop,
3818 .reload = service_reload,
3820 .can_reload = service_can_reload,
3822 .kill = service_kill,
3824 .serialize = service_serialize,
3825 .deserialize_item = service_deserialize_item,
3827 .active_state = service_active_state,
3828 .sub_state_to_string = service_sub_state_to_string,
3830 .check_gc = service_check_gc,
3831 .check_snapshot = service_check_snapshot,
3833 .sigchld_event = service_sigchld_event,
3835 .reset_failed = service_reset_failed,
3837 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3838 .notify_message = service_notify_message,
3840 .bus_name_owner_change = service_bus_name_owner_change,
3842 .bus_interface = "org.freedesktop.systemd1.Service",
3843 .bus_vtable = bus_service_vtable,
3844 .bus_changing_properties = bus_service_changing_properties,
3845 .bus_set_property = bus_service_set_property,
3846 .bus_commit_properties = bus_service_commit_properties,
3848 #ifdef HAVE_SYSV_COMPAT
3849 .enumerate = service_enumerate,
3852 .can_transient = true,
3854 .status_message_formats = {
3855 .starting_stopping = {
3856 [0] = "Starting %s...",
3857 [1] = "Stopping %s...",
3859 .finished_start_job = {
3860 [JOB_DONE] = "Started %s.",
3861 [JOB_FAILED] = "Failed to start %s.",
3862 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3863 [JOB_TIMEOUT] = "Timed out starting %s.",
3865 .finished_stop_job = {
3866 [JOB_DONE] = "Stopped %s.",
3867 [JOB_FAILED] = "Stopped (with error) %s.",
3868 [JOB_TIMEOUT] = "Timed out stopping %s.",