1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/reboot.h>
31 #include "load-fragment.h"
32 #include "load-dropin.h"
35 #include "unit-name.h"
36 #include "unit-printf.h"
37 #include "dbus-service.h"
39 #include "exit-status.h"
41 #include "path-util.h"
46 #include "bus-error.h"
49 #ifdef HAVE_SYSV_COMPAT
51 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
53 typedef enum RunlevelType {
61 const RunlevelType type;
63 /* Standard SysV runlevels for start-up */
64 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
65 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
66 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
67 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
68 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
70 /* Standard SysV runlevels for shutdown */
71 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
72 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
74 /* Note that the order here matters, as we read the
75 directories in this order, and we want to make sure that
76 sysv_start_priority is known when we first load the
77 unit. And that value we only know from S links. Hence
78 UP must be read before DOWN */
81 #define RUNLEVELS_UP "12345"
84 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
85 [SERVICE_DEAD] = UNIT_INACTIVE,
86 [SERVICE_START_PRE] = UNIT_ACTIVATING,
87 [SERVICE_START] = UNIT_ACTIVATING,
88 [SERVICE_START_POST] = UNIT_ACTIVATING,
89 [SERVICE_RUNNING] = UNIT_ACTIVE,
90 [SERVICE_EXITED] = UNIT_ACTIVE,
91 [SERVICE_RELOAD] = UNIT_RELOADING,
92 [SERVICE_STOP] = UNIT_DEACTIVATING,
93 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
94 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
95 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
96 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
97 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
98 [SERVICE_FAILED] = UNIT_FAILED,
99 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
102 /* For Type=idle we never want to delay any other jobs, hence we
103 * consider idle jobs active as soon as we start working on them */
104 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
105 [SERVICE_DEAD] = UNIT_INACTIVE,
106 [SERVICE_START_PRE] = UNIT_ACTIVE,
107 [SERVICE_START] = UNIT_ACTIVE,
108 [SERVICE_START_POST] = UNIT_ACTIVE,
109 [SERVICE_RUNNING] = UNIT_ACTIVE,
110 [SERVICE_EXITED] = UNIT_ACTIVE,
111 [SERVICE_RELOAD] = UNIT_RELOADING,
112 [SERVICE_STOP] = UNIT_DEACTIVATING,
113 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
114 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
115 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
116 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
117 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
118 [SERVICE_FAILED] = UNIT_FAILED,
119 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
122 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata);
123 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata);
124 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata);
126 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
128 static void service_init(Unit *u) {
129 Service *s = SERVICE(u);
132 assert(u->load_state == UNIT_STUB);
134 s->timeout_start_usec = u->manager->default_timeout_start_usec;
135 s->timeout_stop_usec = u->manager->default_timeout_stop_usec;
136 s->restart_usec = u->manager->default_restart_usec;
137 s->type = _SERVICE_TYPE_INVALID;
139 #ifdef HAVE_SYSV_COMPAT
140 s->sysv_start_priority = -1;
141 s->sysv_start_priority_from_rcnd = -1;
144 s->guess_main_pid = true;
146 exec_context_init(&s->exec_context);
147 kill_context_init(&s->kill_context);
148 cgroup_context_init(&s->cgroup_context);
150 unit_cgroup_context_init_defaults(u, &s->cgroup_context);
152 RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst);
154 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
157 static void service_unwatch_control_pid(Service *s) {
160 if (s->control_pid <= 0)
163 unit_unwatch_pid(UNIT(s), s->control_pid);
167 static void service_unwatch_main_pid(Service *s) {
170 if (s->main_pid <= 0)
173 unit_unwatch_pid(UNIT(s), s->main_pid);
177 static void service_unwatch_pid_file(Service *s) {
178 if (!s->pid_file_pathspec)
181 log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
182 UNIT(s)->id, s->pid_file_pathspec->path);
183 path_spec_unwatch(s->pid_file_pathspec);
184 path_spec_done(s->pid_file_pathspec);
185 free(s->pid_file_pathspec);
186 s->pid_file_pathspec = NULL;
189 static int service_set_main_pid(Service *s, pid_t pid) {
200 if (s->main_pid == pid && s->main_pid_known)
203 if (s->main_pid != pid) {
204 service_unwatch_main_pid(s);
205 exec_status_start(&s->main_exec_status, pid);
209 s->main_pid_known = true;
211 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
212 log_warning_unit(UNIT(s)->id,
213 "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.",
216 s->main_pid_alien = true;
218 s->main_pid_alien = false;
223 static void service_close_socket_fd(Service *s) {
226 if (s->socket_fd < 0)
229 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_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, service_dispatch_watchdog, s);
269 log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r));
273 /* Let's process everything else which might be a sign
274 * of living before we consider a service died. */
275 r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE);
279 log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
282 static void service_reset_watchdog(Service *s) {
285 dual_timestamp_get(&s->watchdog_timestamp);
286 service_start_watchdog(s);
289 static void service_done(Unit *u) {
290 Service *s = SERVICE(u);
297 #ifdef HAVE_SYSV_COMPAT
298 free(s->sysv_runlevels);
299 s->sysv_runlevels = NULL;
302 free(s->status_text);
303 s->status_text = NULL;
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, &s->timer_event_source, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s);
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, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1099 if (s->type != SERVICE_ONESHOT &&
1100 s->exec_command[SERVICE_EXEC_START]->command_next) {
1101 log_error_unit(UNIT(s)->id, "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1105 if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) {
1106 log_error_unit(UNIT(s)->id, "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1110 if (s->type == SERVICE_DBUS && !s->bus_name) {
1111 log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1115 if (s->bus_name && s->type != SERVICE_DBUS)
1116 log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1118 if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) {
1119 log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id);
1126 static int service_add_default_dependencies(Service *s) {
1131 /* Add a number of automatic dependencies useful for the
1132 * majority of services. */
1134 /* First, pull in base system */
1135 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1136 SPECIAL_BASIC_TARGET, NULL, true);
1140 /* Second, activate normal shutdown */
1141 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1142 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1146 static void service_fix_output(Service *s) {
1149 /* If nothing has been explicitly configured, patch default
1150 * output in. If input is socket/tty we avoid this however,
1151 * since in that case we want output to default to the same
1152 * place as we read input from. */
1154 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1155 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1156 s->exec_context.std_input == EXEC_INPUT_NULL)
1157 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1159 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1160 s->exec_context.std_input == EXEC_INPUT_NULL)
1161 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1164 static int service_load(Unit *u) {
1166 Service *s = SERVICE(u);
1170 /* Load a .service file */
1171 r = unit_load_fragment(u);
1175 #ifdef HAVE_SYSV_COMPAT
1176 /* Load a classic init script as a fallback, if we couldn't find anything */
1177 if (u->load_state == UNIT_STUB) {
1178 r = service_load_sysv(s);
1184 /* Still nothing found? Then let's give up */
1185 if (u->load_state == UNIT_STUB)
1188 /* This is a new unit? Then let's add in some extras */
1189 if (u->load_state == UNIT_LOADED) {
1191 /* We were able to load something, then let's add in
1192 * the dropin directories. */
1193 r = unit_load_dropin(u);
1197 if (s->type == _SERVICE_TYPE_INVALID)
1198 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1200 /* Oneshot services have disabled start timeout by default */
1201 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1202 s->timeout_start_usec = 0;
1204 service_fix_output(s);
1206 r = unit_add_exec_dependencies(u, &s->exec_context);
1210 r = unit_add_default_slice(u);
1214 #ifdef HAVE_SYSV_COMPAT
1215 r = sysv_fix_order(s);
1221 r = unit_watch_bus_name(u, s->bus_name);
1226 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1227 s->notify_access = NOTIFY_MAIN;
1229 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1230 s->notify_access = NOTIFY_MAIN;
1232 if (UNIT(s)->default_dependencies) {
1233 r = service_add_default_dependencies(s);
1238 r = unit_exec_context_patch_defaults(u, &s->exec_context);
1243 return service_verify(s);
1246 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1248 ServiceExecCommand c;
1249 Service *s = SERVICE(u);
1250 const char *prefix2;
1251 _cleanup_free_ char *p2 = NULL;
1255 p2 = strappend(prefix, "\t");
1256 prefix2 = p2 ? p2 : prefix;
1259 "%sService State: %s\n"
1261 "%sReload Result: %s\n"
1262 "%sPermissionsStartOnly: %s\n"
1263 "%sRootDirectoryStartOnly: %s\n"
1264 "%sRemainAfterExit: %s\n"
1265 "%sGuessMainPID: %s\n"
1268 "%sNotifyAccess: %s\n",
1269 prefix, service_state_to_string(s->state),
1270 prefix, service_result_to_string(s->result),
1271 prefix, service_result_to_string(s->reload_result),
1272 prefix, yes_no(s->permissions_start_only),
1273 prefix, yes_no(s->root_directory_start_only),
1274 prefix, yes_no(s->remain_after_exit),
1275 prefix, yes_no(s->guess_main_pid),
1276 prefix, service_type_to_string(s->type),
1277 prefix, service_restart_to_string(s->restart),
1278 prefix, notify_access_to_string(s->notify_access));
1280 if (s->control_pid > 0)
1282 "%sControl PID: "PID_FMT"\n",
1283 prefix, s->control_pid);
1285 if (s->main_pid > 0)
1287 "%sMain PID: "PID_FMT"\n"
1288 "%sMain PID Known: %s\n"
1289 "%sMain PID Alien: %s\n",
1290 prefix, s->main_pid,
1291 prefix, yes_no(s->main_pid_known),
1292 prefix, yes_no(s->main_pid_alien));
1297 prefix, s->pid_file);
1302 "%sBus Name Good: %s\n",
1303 prefix, s->bus_name,
1304 prefix, yes_no(s->bus_name_good));
1306 kill_context_dump(&s->kill_context, f, prefix);
1307 exec_context_dump(&s->exec_context, f, prefix);
1309 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1311 if (!s->exec_command[c])
1314 fprintf(f, "%s-> %s:\n",
1315 prefix, service_exec_command_to_string(c));
1317 exec_command_dump_list(s->exec_command[c], f, prefix2);
1320 #ifdef HAVE_SYSV_COMPAT
1323 "%sSysV Init Script has LSB Header: %s\n"
1324 "%sSysVEnabled: %s\n",
1325 prefix, yes_no(s->sysv_has_lsb),
1326 prefix, yes_no(s->sysv_enabled));
1328 if (s->sysv_start_priority >= 0)
1330 "%sSysVStartPriority: %i\n",
1331 prefix, s->sysv_start_priority);
1333 if (s->sysv_runlevels)
1334 fprintf(f, "%sSysVRunLevels: %s\n",
1335 prefix, s->sysv_runlevels);
1339 fprintf(f, "%sStatus Text: %s\n",
1340 prefix, s->status_text);
1343 static int service_load_pid_file(Service *s, bool may_warn) {
1344 _cleanup_free_ char *k = NULL;
1353 r = read_one_line_file(s->pid_file, &k);
1356 log_info_unit(UNIT(s)->id,
1357 "PID file %s not readable (yet?) after %s.",
1358 s->pid_file, service_state_to_string(s->state));
1362 r = parse_pid(k, &pid);
1365 log_info_unit(UNIT(s)->id,
1366 "Failed to read PID from file %s: %s",
1367 s->pid_file, strerror(-r));
1371 if (!pid_is_alive(pid)) {
1373 log_info_unit(UNIT(s)->id, "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file);
1378 if (s->main_pid_known) {
1379 if (pid == s->main_pid)
1382 log_debug_unit(UNIT(s)->id,
1383 "Main PID changing: "PID_FMT" -> "PID_FMT,
1385 service_unwatch_main_pid(s);
1386 s->main_pid_known = false;
1388 log_debug_unit(UNIT(s)->id,
1389 "Main PID loaded: "PID_FMT, pid);
1391 r = service_set_main_pid(s, pid);
1395 r = unit_watch_pid(UNIT(s), pid);
1397 /* FIXME: we need to do something here */
1398 log_warning_unit(UNIT(s)->id,
1399 "Failed to watch PID "PID_FMT" from service %s",
1407 static int service_search_main_pid(Service *s) {
1413 /* If we know it anyway, don't ever fallback to unreliable
1415 if (s->main_pid_known)
1418 if (!s->guess_main_pid)
1421 assert(s->main_pid <= 0);
1423 pid = unit_search_main_pid(UNIT(s));
1427 log_debug_unit(UNIT(s)->id,
1428 "Main PID guessed: "PID_FMT, pid);
1429 r = service_set_main_pid(s, pid);
1433 r = unit_watch_pid(UNIT(s), pid);
1435 /* FIXME: we need to do something here */
1436 log_warning_unit(UNIT(s)->id,
1437 "Failed to watch PID "PID_FMT" from service %s",
1442 static void service_set_state(Service *s, ServiceState state) {
1443 ServiceState old_state;
1444 const UnitActiveState *table;
1448 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1450 old_state = s->state;
1453 service_unwatch_pid_file(s);
1456 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1458 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1460 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
1461 SERVICE_AUTO_RESTART))
1462 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1465 SERVICE_START, SERVICE_START_POST,
1466 SERVICE_RUNNING, SERVICE_RELOAD,
1467 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1469 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1470 service_unwatch_main_pid(s);
1471 s->main_command = NULL;
1475 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1477 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1479 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1480 service_unwatch_control_pid(s);
1481 s->control_command = NULL;
1482 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1485 if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART))
1486 unit_unwatch_all_pids(UNIT(s));
1489 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1490 SERVICE_RUNNING, SERVICE_RELOAD,
1491 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
1492 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
1493 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1494 service_close_socket_fd(s);
1495 service_connection_unref(s);
1498 if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1499 service_stop_watchdog(s);
1501 /* For the inactive states unit_notify() will trim the cgroup,
1502 * but for exit we have to do that ourselves... */
1503 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1504 unit_destroy_cgroup(UNIT(s));
1506 /* For remain_after_exit services, let's see if we can "release" the
1507 * hold on the console, since unit_notify() only does that in case of
1508 * change of state */
1509 if (state == SERVICE_EXITED && s->remain_after_exit &&
1510 UNIT(s)->manager->n_on_console > 0) {
1511 ExecContext *ec = unit_get_exec_context(UNIT(s));
1512 if (ec && exec_context_may_touch_console(ec)) {
1513 Manager *m = UNIT(s)->manager;
1516 if (m->n_on_console == 0)
1517 /* unset no_console_output flag, since the console is free */
1518 m->no_console_output = false;
1522 if (old_state != state)
1523 log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1525 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1526 s->reload_result = SERVICE_SUCCESS;
1529 static int service_coldplug(Unit *u) {
1530 Service *s = SERVICE(u);
1534 assert(s->state == SERVICE_DEAD);
1536 if (s->deserialized_state != s->state) {
1538 if (IN_SET(s->deserialized_state,
1539 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1541 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1543 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1547 k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec;
1549 /* For the start/stop timeouts 0 means off */
1551 r = service_arm_timer(s, k);
1557 if (s->deserialized_state == SERVICE_AUTO_RESTART) {
1559 /* The restart timeouts 0 means immediately */
1560 r = service_arm_timer(s, s->restart_usec);
1565 if (pid_is_unwaited(s->main_pid) &&
1566 ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) ||
1567 IN_SET(s->deserialized_state,
1568 SERVICE_START, SERVICE_START_POST,
1569 SERVICE_RUNNING, SERVICE_RELOAD,
1570 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1572 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
1573 r = unit_watch_pid(UNIT(s), s->main_pid);
1578 if (pid_is_unwaited(s->control_pid) &&
1579 IN_SET(s->deserialized_state,
1580 SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
1582 SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
1584 SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
1585 r = unit_watch_pid(UNIT(s), s->control_pid);
1590 if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART))
1591 unit_watch_all_pids(UNIT(s));
1593 if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
1594 service_start_watchdog(s);
1596 service_set_state(s, s->deserialized_state);
1602 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1606 unsigned rn_fds = 0;
1613 if (s->socket_fd >= 0)
1616 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1621 if (u->type != UNIT_SOCKET)
1626 r = socket_collect_fds(sock, &cfds, &cn_fds);
1639 t = new(int, rn_fds+cn_fds);
1646 memcpy(t, rfds, rn_fds * sizeof(int));
1647 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1652 rn_fds = rn_fds+cn_fds;
1667 static int service_spawn(
1672 bool apply_permissions,
1674 bool apply_tty_stdin,
1675 bool set_notify_socket,
1682 _cleanup_free_ int *fdsbuf = NULL;
1683 unsigned n_fds = 0, n_env = 0;
1684 _cleanup_strv_free_ char
1685 **argv = NULL, **final_env = NULL, **our_env = NULL;
1692 unit_realize_cgroup(UNIT(s));
1694 r = unit_setup_exec_runtime(UNIT(s));
1699 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1700 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1701 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1703 if (s->socket_fd >= 0) {
1704 fds = &s->socket_fd;
1707 r = service_collect_fds(s, &fdsbuf, &n_fds);
1715 if (timeout && s->timeout_start_usec > 0) {
1716 r = service_arm_timer(s, s->timeout_start_usec);
1720 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1722 r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
1726 our_env = new0(char*, 4);
1732 if (set_notify_socket)
1733 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1738 if (s->main_pid > 0)
1739 if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) {
1744 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1745 if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) {
1750 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1756 if (is_control && UNIT(s)->cgroup_path) {
1757 path = strappenda(UNIT(s)->cgroup_path, "/control");
1758 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1760 path = UNIT(s)->cgroup_path;
1770 UNIT(s)->manager->confirm_spawn,
1771 UNIT(s)->manager->cgroup_supported,
1773 manager_get_runtime_prefix(UNIT(s)->manager),
1776 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1782 r = unit_watch_pid(UNIT(s), pid);
1784 /* FIXME: we need to do something here */
1793 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
1798 static int main_pid_good(Service *s) {
1801 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1804 /* If we know the pid file, then lets just check if it is
1806 if (s->main_pid_known) {
1808 /* If it's an alien child let's check if it is still
1810 if (s->main_pid_alien && s->main_pid > 0)
1811 return pid_is_alive(s->main_pid);
1813 /* .. otherwise assume we'll get a SIGCHLD for it,
1814 * which we really should wait for to collect exit
1815 * status and code */
1816 return s->main_pid > 0;
1819 /* We don't know the pid */
1823 _pure_ static int control_pid_good(Service *s) {
1826 return s->control_pid > 0;
1829 static int cgroup_good(Service *s) {
1834 if (!UNIT(s)->cgroup_path)
1837 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1844 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1848 if (f != SERVICE_SUCCESS)
1851 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1853 if (allow_restart &&
1854 !s->forbid_restart &&
1855 (s->restart == SERVICE_RESTART_ALWAYS ||
1856 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1857 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1858 (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) ||
1859 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1860 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1861 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1862 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1863 (s->result != SERVICE_FAILURE_SIGNAL ||
1864 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) {
1866 r = service_arm_timer(s, s->restart_usec);
1870 service_set_state(s, SERVICE_AUTO_RESTART);
1873 s->forbid_restart = false;
1875 /* We want fresh tmpdirs in case service is started again immediately */
1876 exec_runtime_destroy(s->exec_runtime);
1877 s->exec_runtime = exec_runtime_unref(s->exec_runtime);
1879 /* Also, remove the runtime directory in */
1880 exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager));
1882 /* Try to delete the pid file. At this point it will be
1883 * out-of-date, and some software might be confused by it, so
1884 * let's remove it. */
1886 unlink_noerrno(s->pid_file);
1891 log_warning_unit(UNIT(s)->id,
1892 "%s failed to run install restart timer: %s",
1893 UNIT(s)->id, strerror(-r));
1894 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1897 static void service_enter_stop_post(Service *s, ServiceResult f) {
1901 if (f != SERVICE_SUCCESS)
1904 service_unwatch_control_pid(s);
1905 unit_watch_all_pids(UNIT(s));
1907 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1908 if (s->control_command) {
1909 s->control_command_id = SERVICE_EXEC_STOP_POST;
1911 r = service_spawn(s,
1915 !s->permissions_start_only,
1916 !s->root_directory_start_only,
1924 service_set_state(s, SERVICE_STOP_POST);
1926 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1931 log_warning_unit(UNIT(s)->id,
1932 "%s failed to run 'stop-post' task: %s",
1933 UNIT(s)->id, strerror(-r));
1934 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1937 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1942 if (f != SERVICE_SUCCESS)
1945 unit_watch_all_pids(UNIT(s));
1947 r = unit_kill_context(
1950 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
1959 if (s->timeout_stop_usec > 0) {
1960 r = service_arm_timer(s, s->timeout_stop_usec);
1965 service_set_state(s, state);
1966 } else if (state == SERVICE_STOP_SIGTERM)
1967 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS);
1968 else if (state == SERVICE_STOP_SIGKILL)
1969 service_enter_stop_post(s, SERVICE_SUCCESS);
1970 else if (state == SERVICE_FINAL_SIGTERM)
1971 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS);
1973 service_enter_dead(s, SERVICE_SUCCESS, true);
1978 log_warning_unit(UNIT(s)->id,
1979 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
1981 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1982 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
1984 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
1987 static void service_enter_stop(Service *s, ServiceResult f) {
1992 if (f != SERVICE_SUCCESS)
1995 service_unwatch_control_pid(s);
1996 unit_watch_all_pids(UNIT(s));
1998 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
1999 if (s->control_command) {
2000 s->control_command_id = SERVICE_EXEC_STOP;
2002 r = service_spawn(s,
2006 !s->permissions_start_only,
2007 !s->root_directory_start_only,
2015 service_set_state(s, SERVICE_STOP);
2017 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2022 log_warning_unit(UNIT(s)->id,
2023 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2024 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2027 static void service_enter_running(Service *s, ServiceResult f) {
2028 int main_pid_ok, cgroup_ok;
2031 if (f != SERVICE_SUCCESS)
2034 main_pid_ok = main_pid_good(s);
2035 cgroup_ok = cgroup_good(s);
2037 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2038 (s->bus_name_good || s->type != SERVICE_DBUS))
2039 service_set_state(s, SERVICE_RUNNING);
2040 else if (s->remain_after_exit)
2041 service_set_state(s, SERVICE_EXITED);
2043 service_enter_stop(s, SERVICE_SUCCESS);
2046 static void service_enter_start_post(Service *s) {
2050 service_unwatch_control_pid(s);
2051 service_reset_watchdog(s);
2053 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2054 if (s->control_command) {
2055 s->control_command_id = SERVICE_EXEC_START_POST;
2057 r = service_spawn(s,
2061 !s->permissions_start_only,
2062 !s->root_directory_start_only,
2070 service_set_state(s, SERVICE_START_POST);
2072 service_enter_running(s, SERVICE_SUCCESS);
2077 log_warning_unit(UNIT(s)->id,
2078 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2079 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2082 static void service_kill_control_processes(Service *s) {
2085 if (!UNIT(s)->cgroup_path)
2088 p = strappenda(UNIT(s)->cgroup_path, "/control");
2089 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
2092 static void service_enter_start(Service *s) {
2099 assert(s->exec_command[SERVICE_EXEC_START]);
2100 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2102 service_unwatch_control_pid(s);
2103 service_unwatch_main_pid(s);
2105 /* We want to ensure that nobody leaks processes from
2106 * START_PRE here, so let's go on a killing spree, People
2107 * should not spawn long running processes from START_PRE. */
2108 service_kill_control_processes(s);
2110 if (s->type == SERVICE_FORKING) {
2111 s->control_command_id = SERVICE_EXEC_START;
2112 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2114 s->main_command = NULL;
2116 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2117 s->control_command = NULL;
2119 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2122 r = service_spawn(s,
2124 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2125 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2130 s->notify_access != NOTIFY_NONE,
2136 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2137 /* For simple services we immediately start
2138 * the START_POST binaries. */
2140 service_set_main_pid(s, pid);
2141 service_enter_start_post(s);
2143 } else if (s->type == SERVICE_FORKING) {
2145 /* For forking services we wait until the start
2146 * process exited. */
2148 s->control_pid = pid;
2149 service_set_state(s, SERVICE_START);
2151 } else if (s->type == SERVICE_ONESHOT ||
2152 s->type == SERVICE_DBUS ||
2153 s->type == SERVICE_NOTIFY) {
2155 /* For oneshot services we wait until the start
2156 * process exited, too, but it is our main process. */
2158 /* For D-Bus services we know the main pid right away,
2159 * but wait for the bus name to appear on the
2160 * bus. Notify services are similar. */
2162 service_set_main_pid(s, pid);
2163 service_set_state(s, SERVICE_START);
2165 assert_not_reached("Unknown service type");
2170 log_warning_unit(UNIT(s)->id,
2171 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2172 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2175 static void service_enter_start_pre(Service *s) {
2180 service_unwatch_control_pid(s);
2182 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2183 if (s->control_command) {
2184 /* Before we start anything, let's clear up what might
2185 * be left from previous runs. */
2186 service_kill_control_processes(s);
2188 s->control_command_id = SERVICE_EXEC_START_PRE;
2190 r = service_spawn(s,
2194 !s->permissions_start_only,
2195 !s->root_directory_start_only,
2203 service_set_state(s, SERVICE_START_PRE);
2205 service_enter_start(s);
2210 log_warning_unit(UNIT(s)->id,
2211 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2212 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2215 static void service_enter_restart(Service *s) {
2216 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2221 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2222 /* Don't restart things if we are going down anyway */
2223 log_info_unit(UNIT(s)->id,
2224 "Stop job pending for unit, delaying automatic restart.");
2226 r = service_arm_timer(s, s->restart_usec);
2233 /* Any units that are bound to this service must also be
2234 * restarted. We use JOB_RESTART (instead of the more obvious
2235 * JOB_START) here so that those dependency jobs will be added
2237 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2241 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2242 * it will be canceled as part of the service_stop() call that
2243 * is executed as part of JOB_RESTART. */
2245 log_debug_unit(UNIT(s)->id,
2246 "%s scheduled restart job.", UNIT(s)->id);
2250 log_warning_unit(UNIT(s)->id,
2251 "%s failed to schedule restart job: %s",
2252 UNIT(s)->id, bus_error_message(&error, -r));
2253 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2256 static void service_enter_reload(Service *s) {
2261 service_unwatch_control_pid(s);
2263 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2264 if (s->control_command) {
2265 s->control_command_id = SERVICE_EXEC_RELOAD;
2267 r = service_spawn(s,
2271 !s->permissions_start_only,
2272 !s->root_directory_start_only,
2280 service_set_state(s, SERVICE_RELOAD);
2282 service_enter_running(s, SERVICE_SUCCESS);
2287 log_warning_unit(UNIT(s)->id,
2288 "%s failed to run 'reload' task: %s",
2289 UNIT(s)->id, strerror(-r));
2290 s->reload_result = SERVICE_FAILURE_RESOURCES;
2291 service_enter_running(s, SERVICE_SUCCESS);
2294 static void service_run_next_control(Service *s) {
2298 assert(s->control_command);
2299 assert(s->control_command->command_next);
2301 assert(s->control_command_id != SERVICE_EXEC_START);
2303 s->control_command = s->control_command->command_next;
2304 service_unwatch_control_pid(s);
2306 r = service_spawn(s,
2310 !s->permissions_start_only,
2311 !s->root_directory_start_only,
2312 s->control_command_id == SERVICE_EXEC_START_PRE ||
2313 s->control_command_id == SERVICE_EXEC_STOP_POST,
2323 log_warning_unit(UNIT(s)->id,
2324 "%s failed to run next control task: %s",
2325 UNIT(s)->id, strerror(-r));
2327 if (s->state == SERVICE_START_PRE)
2328 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2329 else if (s->state == SERVICE_STOP)
2330 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2331 else if (s->state == SERVICE_STOP_POST)
2332 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2333 else if (s->state == SERVICE_RELOAD) {
2334 s->reload_result = SERVICE_FAILURE_RESOURCES;
2335 service_enter_running(s, SERVICE_SUCCESS);
2337 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2340 static void service_run_next_main(Service *s) {
2345 assert(s->main_command);
2346 assert(s->main_command->command_next);
2347 assert(s->type == SERVICE_ONESHOT);
2349 s->main_command = s->main_command->command_next;
2350 service_unwatch_main_pid(s);
2352 r = service_spawn(s,
2359 s->notify_access != NOTIFY_NONE,
2365 service_set_main_pid(s, pid);
2370 log_warning_unit(UNIT(s)->id,
2371 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2372 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2375 static int service_start_limit_test(Service *s) {
2378 if (ratelimit_test(&s->start_limit))
2381 switch (s->start_limit_action) {
2383 case SERVICE_START_LIMIT_NONE:
2384 log_warning_unit(UNIT(s)->id,
2385 "%s start request repeated too quickly, refusing to start.",
2389 case SERVICE_START_LIMIT_REBOOT: {
2390 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2393 log_warning_unit(UNIT(s)->id,
2394 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2396 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2397 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2398 true, &error, NULL);
2400 log_error_unit(UNIT(s)->id,
2401 "Failed to reboot: %s.", bus_error_message(&error, r));
2406 case SERVICE_START_LIMIT_REBOOT_FORCE:
2407 log_warning_unit(UNIT(s)->id,
2408 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2409 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2412 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2413 log_warning_unit(UNIT(s)->id,
2414 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2416 reboot(RB_AUTOBOOT);
2420 log_error_unit(UNIT(s)->id,
2421 "start limit action=%i", s->start_limit_action);
2422 assert_not_reached("Unknown StartLimitAction.");
2428 static int service_start(Unit *u) {
2429 Service *s = SERVICE(u);
2434 /* We cannot fulfill this request right now, try again later
2436 if (s->state == SERVICE_STOP ||
2437 s->state == SERVICE_STOP_SIGTERM ||
2438 s->state == SERVICE_STOP_SIGKILL ||
2439 s->state == SERVICE_STOP_POST ||
2440 s->state == SERVICE_FINAL_SIGTERM ||
2441 s->state == SERVICE_FINAL_SIGKILL)
2444 /* Already on it! */
2445 if (s->state == SERVICE_START_PRE ||
2446 s->state == SERVICE_START ||
2447 s->state == SERVICE_START_POST)
2450 /* A service that will be restarted must be stopped first to
2451 * trigger BindsTo and/or OnFailure dependencies. If a user
2452 * does not want to wait for the holdoff time to elapse, the
2453 * service should be manually restarted, not started. We
2454 * simply return EAGAIN here, so that any start jobs stay
2455 * queued, and assume that the auto restart timer will
2456 * eventually trigger the restart. */
2457 if (s->state == SERVICE_AUTO_RESTART)
2460 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2462 /* Make sure we don't enter a busy loop of some kind. */
2463 r = service_start_limit_test(s);
2465 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2469 s->result = SERVICE_SUCCESS;
2470 s->reload_result = SERVICE_SUCCESS;
2471 s->main_pid_known = false;
2472 s->main_pid_alien = false;
2473 s->forbid_restart = false;
2475 service_enter_start_pre(s);
2479 static int service_stop(Unit *u) {
2480 Service *s = SERVICE(u);
2484 /* Don't create restart jobs from here. */
2485 s->forbid_restart = true;
2488 if (s->state == SERVICE_STOP ||
2489 s->state == SERVICE_STOP_SIGTERM ||
2490 s->state == SERVICE_STOP_SIGKILL ||
2491 s->state == SERVICE_STOP_POST ||
2492 s->state == SERVICE_FINAL_SIGTERM ||
2493 s->state == SERVICE_FINAL_SIGKILL)
2496 /* A restart will be scheduled or is in progress. */
2497 if (s->state == SERVICE_AUTO_RESTART) {
2498 service_set_state(s, SERVICE_DEAD);
2502 /* If there's already something running we go directly into
2504 if (s->state == SERVICE_START_PRE ||
2505 s->state == SERVICE_START ||
2506 s->state == SERVICE_START_POST ||
2507 s->state == SERVICE_RELOAD) {
2508 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2512 assert(s->state == SERVICE_RUNNING ||
2513 s->state == SERVICE_EXITED);
2515 service_enter_stop(s, SERVICE_SUCCESS);
2519 static int service_reload(Unit *u) {
2520 Service *s = SERVICE(u);
2524 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2526 service_enter_reload(s);
2530 _pure_ static bool service_can_reload(Unit *u) {
2531 Service *s = SERVICE(u);
2535 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2538 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2539 Service *s = SERVICE(u);
2545 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2546 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2547 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2549 if (s->control_pid > 0)
2550 unit_serialize_item_format(u, f, "control-pid", PID_FMT,
2553 if (s->main_pid_known && s->main_pid > 0)
2554 unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid);
2556 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2559 unit_serialize_item(u, f, "status-text", s->status_text);
2561 /* FIXME: There's a minor uncleanliness here: if there are
2562 * multiple commands attached here, we will start from the
2563 * first one again */
2564 if (s->control_command_id >= 0)
2565 unit_serialize_item(u, f, "control-command",
2566 service_exec_command_to_string(s->control_command_id));
2568 if (s->socket_fd >= 0) {
2571 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2574 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2577 if (s->main_exec_status.pid > 0) {
2578 unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT,
2579 s->main_exec_status.pid);
2580 dual_timestamp_serialize(f, "main-exec-status-start",
2581 &s->main_exec_status.start_timestamp);
2582 dual_timestamp_serialize(f, "main-exec-status-exit",
2583 &s->main_exec_status.exit_timestamp);
2585 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2586 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2587 s->main_exec_status.code);
2588 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2589 s->main_exec_status.status);
2592 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2593 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2595 if (s->forbid_restart)
2596 unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart));
2601 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2602 Service *s = SERVICE(u);
2609 if (streq(key, "state")) {
2612 state = service_state_from_string(value);
2614 log_debug_unit(u->id, "Failed to parse state value %s", value);
2616 s->deserialized_state = state;
2617 } else if (streq(key, "result")) {
2620 f = service_result_from_string(value);
2622 log_debug_unit(u->id, "Failed to parse result value %s", value);
2623 else if (f != SERVICE_SUCCESS)
2626 } else if (streq(key, "reload-result")) {
2629 f = service_result_from_string(value);
2631 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2632 else if (f != SERVICE_SUCCESS)
2633 s->reload_result = f;
2635 } else if (streq(key, "control-pid")) {
2638 if (parse_pid(value, &pid) < 0)
2639 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2641 s->control_pid = pid;
2642 } else if (streq(key, "main-pid")) {
2645 if (parse_pid(value, &pid) < 0)
2646 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2648 service_set_main_pid(s, pid);
2649 unit_watch_pid(UNIT(s), pid);
2651 } else if (streq(key, "main-pid-known")) {
2654 b = parse_boolean(value);
2656 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2658 s->main_pid_known = b;
2659 } else if (streq(key, "status-text")) {
2666 free(s->status_text);
2670 } else if (streq(key, "control-command")) {
2671 ServiceExecCommand id;
2673 id = service_exec_command_from_string(value);
2675 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2677 s->control_command_id = id;
2678 s->control_command = s->exec_command[id];
2680 } else if (streq(key, "socket-fd")) {
2683 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2684 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2687 if (s->socket_fd >= 0)
2688 close_nointr_nofail(s->socket_fd);
2689 s->socket_fd = fdset_remove(fds, fd);
2691 } else if (streq(key, "main-exec-status-pid")) {
2694 if (parse_pid(value, &pid) < 0)
2695 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2697 s->main_exec_status.pid = pid;
2698 } else if (streq(key, "main-exec-status-code")) {
2701 if (safe_atoi(value, &i) < 0)
2702 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2704 s->main_exec_status.code = i;
2705 } else if (streq(key, "main-exec-status-status")) {
2708 if (safe_atoi(value, &i) < 0)
2709 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2711 s->main_exec_status.status = i;
2712 } else if (streq(key, "main-exec-status-start"))
2713 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2714 else if (streq(key, "main-exec-status-exit"))
2715 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2716 else if (streq(key, "watchdog-timestamp"))
2717 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2718 else if (streq(key, "forbid-restart")) {
2721 b = parse_boolean(value);
2723 log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value);
2725 s->forbid_restart = b;
2727 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2732 _pure_ static UnitActiveState service_active_state(Unit *u) {
2733 const UnitActiveState *table;
2737 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2739 return table[SERVICE(u)->state];
2742 static const char *service_sub_state_to_string(Unit *u) {
2745 return service_state_to_string(SERVICE(u)->state);
2748 static bool service_check_gc(Unit *u) {
2749 Service *s = SERVICE(u);
2753 /* Never clean up services that still have a process around,
2754 * even if the service is formally dead. */
2755 if (cgroup_good(s) > 0 ||
2756 main_pid_good(s) > 0 ||
2757 control_pid_good(s) > 0)
2760 #ifdef HAVE_SYSV_COMPAT
2768 _pure_ static bool service_check_snapshot(Unit *u) {
2769 Service *s = SERVICE(u);
2773 return (s->socket_fd < 0);
2776 static int service_retry_pid_file(Service *s) {
2779 assert(s->pid_file);
2780 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2782 r = service_load_pid_file(s, false);
2786 service_unwatch_pid_file(s);
2788 service_enter_running(s, SERVICE_SUCCESS);
2792 static int service_watch_pid_file(Service *s) {
2795 log_debug_unit(UNIT(s)->id,
2796 "Setting watch for %s's PID file %s",
2797 UNIT(s)->id, s->pid_file_pathspec->path);
2798 r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io);
2802 /* the pidfile might have appeared just before we set the watch */
2803 log_debug_unit(UNIT(s)->id,
2804 "Trying to read %s's PID file %s in case it changed",
2805 UNIT(s)->id, s->pid_file_pathspec->path);
2806 service_retry_pid_file(s);
2810 log_error_unit(UNIT(s)->id,
2811 "Failed to set a watch for %s's PID file %s: %s",
2812 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2813 service_unwatch_pid_file(s);
2817 static int service_demand_pid_file(Service *s) {
2820 assert(s->pid_file);
2821 assert(!s->pid_file_pathspec);
2823 ps = new0(PathSpec, 1);
2828 ps->path = strdup(s->pid_file);
2834 path_kill_slashes(ps->path);
2836 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2837 * keep their PID file open all the time. */
2838 ps->type = PATH_MODIFIED;
2839 ps->inotify_fd = -1;
2841 s->pid_file_pathspec = ps;
2843 return service_watch_pid_file(s);
2846 static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) {
2847 PathSpec *p = userdata;
2852 s = SERVICE(p->unit);
2856 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2857 assert(s->pid_file_pathspec);
2858 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2860 log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id);
2862 if (path_spec_fd_event(p, events) < 0)
2865 if (service_retry_pid_file(s) == 0)
2868 if (service_watch_pid_file(s) < 0)
2874 service_unwatch_pid_file(s);
2875 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2879 static void service_notify_cgroup_empty_event(Unit *u) {
2880 Service *s = SERVICE(u);
2884 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
2888 /* Waiting for SIGCHLD is usually more interesting,
2889 * because it includes return codes/signals. Which is
2890 * why we ignore the cgroup events for most cases,
2891 * except when we don't know pid which to expect the
2895 case SERVICE_START_POST:
2896 /* If we were hoping for the daemon to write its PID file,
2897 * we can give up now. */
2898 if (s->pid_file_pathspec) {
2899 log_warning_unit(u->id,
2900 "%s never wrote its PID file. Failing.", UNIT(s)->id);
2901 service_unwatch_pid_file(s);
2902 if (s->state == SERVICE_START)
2903 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2905 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2909 case SERVICE_RUNNING:
2910 /* service_enter_running() will figure out what to do */
2911 service_enter_running(s, SERVICE_SUCCESS);
2914 case SERVICE_STOP_SIGTERM:
2915 case SERVICE_STOP_SIGKILL:
2917 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2918 service_enter_stop_post(s, SERVICE_SUCCESS);
2922 case SERVICE_STOP_POST:
2923 case SERVICE_FINAL_SIGTERM:
2924 case SERVICE_FINAL_SIGKILL:
2925 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2926 service_enter_dead(s, SERVICE_SUCCESS, true);
2935 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2936 Service *s = SERVICE(u);
2942 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2943 is_clean_exit_lsb(code, status, &s->success_status))
2944 f = SERVICE_SUCCESS;
2945 else if (code == CLD_EXITED)
2946 f = SERVICE_FAILURE_EXIT_CODE;
2947 else if (code == CLD_KILLED)
2948 f = SERVICE_FAILURE_SIGNAL;
2949 else if (code == CLD_DUMPED)
2950 f = SERVICE_FAILURE_CORE_DUMP;
2952 assert_not_reached("Unknown code");
2954 if (s->main_pid == pid) {
2955 /* Forking services may occasionally move to a new PID.
2956 * As long as they update the PID file before exiting the old
2957 * PID, they're fine. */
2958 if (service_load_pid_file(s, false) == 0)
2962 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2964 if (s->main_command) {
2965 /* If this is not a forking service than the
2966 * main process got started and hence we copy
2967 * the exit status so that it is recorded both
2968 * as main and as control process exit
2971 s->main_command->exec_status = s->main_exec_status;
2973 if (s->main_command->ignore)
2974 f = SERVICE_SUCCESS;
2975 } else if (s->exec_command[SERVICE_EXEC_START]) {
2977 /* If this is a forked process, then we should
2978 * ignore the return value if this was
2979 * configured for the starter process */
2981 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2982 f = SERVICE_SUCCESS;
2985 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2987 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2988 u->id, sigchld_code_to_string(code), status,
2989 strna(code == CLD_EXITED
2990 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2991 : signal_to_string(status)),
2992 "EXIT_CODE=%s", sigchld_code_to_string(code),
2993 "EXIT_STATUS=%i", status,
2996 if (f != SERVICE_SUCCESS)
2999 if (s->main_command &&
3000 s->main_command->command_next &&
3001 f == SERVICE_SUCCESS) {
3003 /* There is another command to *
3004 * execute, so let's do that. */
3006 log_debug_unit(u->id,
3007 "%s running next main command for state %s",
3008 u->id, service_state_to_string(s->state));
3009 service_run_next_main(s);
3013 /* The service exited, so the service is officially
3015 s->main_command = NULL;
3019 case SERVICE_START_POST:
3020 case SERVICE_RELOAD:
3022 /* Need to wait until the operation is
3027 if (s->type == SERVICE_ONESHOT) {
3028 /* This was our main goal, so let's go on */
3029 if (f == SERVICE_SUCCESS)
3030 service_enter_start_post(s);
3032 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3038 case SERVICE_RUNNING:
3039 service_enter_running(s, f);
3042 case SERVICE_STOP_SIGTERM:
3043 case SERVICE_STOP_SIGKILL:
3045 if (!control_pid_good(s))
3046 service_enter_stop_post(s, f);
3048 /* If there is still a control process, wait for that first */
3051 case SERVICE_STOP_POST:
3052 case SERVICE_FINAL_SIGTERM:
3053 case SERVICE_FINAL_SIGKILL:
3055 if (!control_pid_good(s))
3056 service_enter_dead(s, f, true);
3060 assert_not_reached("Uh, main process died at wrong time.");
3064 } else if (s->control_pid == pid) {
3067 if (s->control_command) {
3068 exec_status_exit(&s->control_command->exec_status,
3069 &s->exec_context, pid, code, status);
3071 if (s->control_command->ignore)
3072 f = SERVICE_SUCCESS;
3075 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3076 "%s: control process exited, code=%s status=%i",
3077 u->id, sigchld_code_to_string(code), status);
3079 if (f != SERVICE_SUCCESS)
3082 /* Immediately get rid of the cgroup, so that the
3083 * kernel doesn't delay the cgroup empty messages for
3084 * the service cgroup any longer than necessary */
3085 service_kill_control_processes(s);
3087 if (s->control_command &&
3088 s->control_command->command_next &&
3089 f == SERVICE_SUCCESS) {
3091 /* There is another command to *
3092 * execute, so let's do that. */
3094 log_debug_unit(u->id,
3095 "%s running next control command for state %s",
3096 u->id, service_state_to_string(s->state));
3097 service_run_next_control(s);
3100 /* No further commands for this step, so let's
3101 * figure out what to do next */
3103 s->control_command = NULL;
3104 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3106 log_debug_unit(u->id,
3107 "%s got final SIGCHLD for state %s",
3108 u->id, service_state_to_string(s->state));
3112 case SERVICE_START_PRE:
3113 if (f == SERVICE_SUCCESS)
3114 service_enter_start(s);
3116 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3120 if (s->type != SERVICE_FORKING)
3121 /* Maybe spurious event due to a reload that changed the type? */
3124 if (f != SERVICE_SUCCESS) {
3125 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3130 bool has_start_post;
3133 /* Let's try to load the pid file here if we can.
3134 * The PID file might actually be created by a START_POST
3135 * script. In that case don't worry if the loading fails. */
3137 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3138 r = service_load_pid_file(s, !has_start_post);
3139 if (!has_start_post && r < 0) {
3140 r = service_demand_pid_file(s);
3141 if (r < 0 || !cgroup_good(s))
3142 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3146 service_search_main_pid(s);
3148 service_enter_start_post(s);
3151 case SERVICE_START_POST:
3152 if (f != SERVICE_SUCCESS) {
3153 service_enter_stop(s, f);
3160 r = service_load_pid_file(s, true);
3162 r = service_demand_pid_file(s);
3163 if (r < 0 || !cgroup_good(s))
3164 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3168 service_search_main_pid(s);
3170 service_enter_running(s, SERVICE_SUCCESS);
3173 case SERVICE_RELOAD:
3174 if (f == SERVICE_SUCCESS) {
3175 service_load_pid_file(s, true);
3176 service_search_main_pid(s);
3179 s->reload_result = f;
3180 service_enter_running(s, SERVICE_SUCCESS);
3184 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3187 case SERVICE_STOP_SIGTERM:
3188 case SERVICE_STOP_SIGKILL:
3189 if (main_pid_good(s) <= 0)
3190 service_enter_stop_post(s, f);
3192 /* If there is still a service
3193 * process around, wait until
3194 * that one quit, too */
3197 case SERVICE_STOP_POST:
3198 case SERVICE_FINAL_SIGTERM:
3199 case SERVICE_FINAL_SIGKILL:
3200 if (main_pid_good(s) <= 0)
3201 service_enter_dead(s, f, true);
3205 assert_not_reached("Uh, control process died at wrong time.");
3210 /* Notify clients about changed exit status */
3211 unit_add_to_dbus_queue(u);
3213 /* We got one SIGCHLD for the service, let's watch all
3214 * processes that are now running of the service, and watch
3215 * that. Among the PIDs we then watch will be children
3216 * reassigned to us, which hopefully allows us to identify
3217 * when all children are gone */
3218 unit_tidy_watch_pids(u, s->main_pid, s->control_pid);
3219 unit_watch_all_pids(u);
3221 /* If the PID set is empty now, then let's finish this off */
3222 if (set_isempty(u->pids))
3223 service_notify_cgroup_empty_event(u);
3226 static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
3227 Service *s = SERVICE(userdata);
3230 assert(source == s->timer_event_source);
3234 case SERVICE_START_PRE:
3236 log_warning_unit(UNIT(s)->id,
3237 "%s %s operation timed out. Terminating.",
3239 s->state == SERVICE_START ? "start" : "start-pre");
3240 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3243 case SERVICE_START_POST:
3244 log_warning_unit(UNIT(s)->id,
3245 "%s start-post operation timed out. Stopping.", UNIT(s)->id);
3246 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3249 case SERVICE_RELOAD:
3250 log_warning_unit(UNIT(s)->id,
3251 "%s reload operation timed out. Stopping.", UNIT(s)->id);
3252 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3253 service_enter_running(s, SERVICE_SUCCESS);
3257 log_warning_unit(UNIT(s)->id,
3258 "%s stopping timed out. Terminating.", UNIT(s)->id);
3259 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3262 case SERVICE_STOP_SIGTERM:
3263 if (s->kill_context.send_sigkill) {
3264 log_warning_unit(UNIT(s)->id,
3265 "%s stop-sigterm timed out. Killing.", UNIT(s)->id);
3266 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3268 log_warning_unit(UNIT(s)->id,
3269 "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id);
3270 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3275 case SERVICE_STOP_SIGKILL:
3276 /* Uh, we sent a SIGKILL and it is still not gone?
3277 * Must be something we cannot kill, so let's just be
3278 * weirded out and continue */
3280 log_warning_unit(UNIT(s)->id,
3281 "%s still around after SIGKILL. Ignoring.", UNIT(s)->id);
3282 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3285 case SERVICE_STOP_POST:
3286 log_warning_unit(UNIT(s)->id,
3287 "%s stop-post timed out. Terminating.", UNIT(s)->id);
3288 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3291 case SERVICE_FINAL_SIGTERM:
3292 if (s->kill_context.send_sigkill) {
3293 log_warning_unit(UNIT(s)->id,
3294 "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id);
3295 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3297 log_warning_unit(UNIT(s)->id,
3298 "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.",
3300 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3305 case SERVICE_FINAL_SIGKILL:
3306 log_warning_unit(UNIT(s)->id,
3307 "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id);
3308 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3311 case SERVICE_AUTO_RESTART:
3312 log_info_unit(UNIT(s)->id,
3313 s->restart_usec > 0 ?
3314 "%s holdoff time over, scheduling restart." :
3315 "%s has no holdoff time, scheduling restart.",
3317 service_enter_restart(s);
3321 assert_not_reached("Timeout at wrong time.");
3327 static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) {
3328 Service *s = SERVICE(userdata);
3331 assert(source == s->watchdog_event_source);
3333 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
3334 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG);
3339 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3340 Service *s = SERVICE(u);
3342 bool notify_dbus = false;
3346 log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)",
3347 u->id, pid, tags && *tags ? tags[0] : "(empty)");
3349 if (s->notify_access == NOTIFY_NONE) {
3350 log_warning_unit(u->id,
3351 "%s: Got notification message from PID "PID_FMT", but reception is disabled.",
3356 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3358 if (s->main_pid != 0)
3359 log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, u->id, pid, s->main_pid);
3361 log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", u->id, pid);
3365 /* Interpret MAINPID= */
3366 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3367 (s->state == SERVICE_START ||
3368 s->state == SERVICE_START_POST ||
3369 s->state == SERVICE_RUNNING ||
3370 s->state == SERVICE_RELOAD)) {
3372 if (parse_pid(e + 8, &pid) < 0)
3373 log_warning_unit(u->id, "Failed to parse notification message %s", e);
3375 log_debug_unit(u->id, "%s: got %s", u->id, e);
3376 service_set_main_pid(s, pid);
3377 unit_watch_pid(UNIT(s), pid);
3382 /* Interpret READY= */
3383 if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) {
3384 log_debug_unit(u->id, "%s: got READY=1", u->id);
3385 service_enter_start_post(s);
3389 /* Interpret STATUS= */
3390 e = strv_find_prefix(tags, "STATUS=");
3395 if (!utf8_is_valid(e+7)) {
3396 log_warning_unit(u->id, "Status message in notification is not UTF-8 clean.");
3400 log_debug_unit(u->id, "%s: got %s", u->id, e);
3411 if (!streq_ptr(s->status_text, t)) {
3412 free(s->status_text);
3419 /* Interpet WATCHDOG= */
3420 if (strv_find(tags, "WATCHDOG=1")) {
3421 log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
3422 service_reset_watchdog(s);
3425 /* Notify clients about changed status or main pid */
3427 unit_add_to_dbus_queue(u);
3430 static int service_get_timeout(Unit *u, uint64_t *timeout) {
3431 Service *s = SERVICE(u);
3434 if (!s->timer_event_source)
3437 r = sd_event_source_get_time(s->timer_event_source, timeout);
3444 #ifdef HAVE_SYSV_COMPAT
3446 static int service_enumerate(Manager *m) {
3449 _cleanup_closedir_ DIR *d = NULL;
3450 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3451 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3452 _cleanup_set_free_ Set *shutdown_services = NULL;
3459 if (m->running_as != SYSTEMD_SYSTEM)
3462 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3463 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3467 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3478 if (errno != ENOENT)
3479 log_warning("opendir(%s) failed: %m", path);
3484 while ((de = readdir(d))) {
3487 if (ignore_file(de->d_name))
3490 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3493 if (strlen(de->d_name) < 4)
3496 a = undecchar(de->d_name[1]);
3497 b = undecchar(de->d_name[2]);
3503 fpath = strjoin(path, "/", de->d_name, NULL);
3509 if (access(fpath, X_OK) < 0) {
3511 if (errno != ENOENT)
3512 log_warning("access() failed on %s: %m", fpath);
3518 name = sysv_translate_name(de->d_name + 3);
3524 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3526 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3530 if (de->d_name[0] == 'S') {
3532 if (rcnd_table[i].type == RUNLEVEL_UP) {
3533 SERVICE(service)->sysv_start_priority_from_rcnd =
3534 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3536 SERVICE(service)->sysv_enabled = true;
3539 r = set_ensure_allocated(&runlevel_services[i],
3540 trivial_hash_func, trivial_compare_func);
3544 r = set_put(runlevel_services[i], service);
3548 } else if (de->d_name[0] == 'K' &&
3549 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3551 r = set_ensure_allocated(&shutdown_services,
3552 trivial_hash_func, trivial_compare_func);
3556 r = set_put(shutdown_services, service);
3563 /* Now we loaded all stubs and are aware of the lowest
3564 start-up priority for all services, not let's actually load
3565 the services, this will also tell us which services are
3566 actually native now */
3567 manager_dispatch_load_queue(m);
3569 /* If this is a native service, rely on native ways to pull in
3570 * a service, don't pull it in via sysv rcN.d links. */
3571 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3572 SET_FOREACH(service, runlevel_services[i], j) {
3573 service = unit_follow_merge(service);
3575 if (service->fragment_path)
3578 r = unit_add_two_dependencies_by_name_inverse(
3579 service, UNIT_AFTER, UNIT_WANTS,
3580 rcnd_table[i].target, NULL, true);
3585 /* We honour K links only for halt/reboot. For the normal
3586 * runlevels we assume the stop jobs will be implicitly added
3587 * by the core logic. Also, we don't really distinguish here
3588 * between the runlevels 0 and 6 and just add them to the
3589 * special shutdown target. */
3590 SET_FOREACH(service, shutdown_services, j) {
3591 service = unit_follow_merge(service);
3593 if (service->fragment_path)
3596 r = unit_add_two_dependencies_by_name(
3597 service, UNIT_BEFORE, UNIT_CONFLICTS,
3598 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3607 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3608 set_free(runlevel_services[i]);
3614 static void service_bus_name_owner_change(
3617 const char *old_owner,
3618 const char *new_owner) {
3620 Service *s = SERVICE(u);
3626 assert(streq(s->bus_name, name));
3627 assert(old_owner || new_owner);
3629 if (old_owner && new_owner)
3630 log_debug_unit(u->id,
3631 "%s's D-Bus name %s changed owner from %s to %s",
3632 u->id, name, old_owner, new_owner);
3634 log_debug_unit(u->id,
3635 "%s's D-Bus name %s no longer registered by %s",
3636 u->id, name, old_owner);
3638 log_debug_unit(u->id,
3639 "%s's D-Bus name %s now registered by %s",
3640 u->id, name, new_owner);
3642 s->bus_name_good = !!new_owner;
3644 if (s->type == SERVICE_DBUS) {
3646 /* service_enter_running() will figure out what to
3648 if (s->state == SERVICE_RUNNING)
3649 service_enter_running(s, SERVICE_SUCCESS);
3650 else if (s->state == SERVICE_START && new_owner)
3651 service_enter_start_post(s);
3653 } else if (new_owner &&
3655 (s->state == SERVICE_START ||
3656 s->state == SERVICE_START_POST ||
3657 s->state == SERVICE_RUNNING ||
3658 s->state == SERVICE_RELOAD)) {
3660 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
3663 /* Try to acquire PID from bus service */
3665 r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds);
3667 r = sd_bus_creds_get_pid(creds, &pid);
3669 log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3671 service_set_main_pid(s, pid);
3672 unit_watch_pid(UNIT(s), pid);
3677 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3678 _cleanup_free_ char *peer = NULL;
3684 /* This is called by the socket code when instantiating a new
3685 * service for a stream socket and the socket needs to be
3688 if (UNIT(s)->load_state != UNIT_LOADED)
3691 if (s->socket_fd >= 0)
3694 if (s->state != SERVICE_DEAD)
3697 if (getpeername_pretty(fd, &peer) >= 0) {
3699 if (UNIT(s)->description) {
3700 _cleanup_free_ char *a;
3702 a = strjoin(UNIT(s)->description, " (", peer, ")", NULL);
3706 r = unit_set_description(UNIT(s), a);
3708 r = unit_set_description(UNIT(s), peer);
3716 unit_ref_set(&s->accept_socket, UNIT(sock));
3718 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3721 static void service_reset_failed(Unit *u) {
3722 Service *s = SERVICE(u);
3726 if (s->state == SERVICE_FAILED)
3727 service_set_state(s, SERVICE_DEAD);
3729 s->result = SERVICE_SUCCESS;
3730 s->reload_result = SERVICE_SUCCESS;
3732 RATELIMIT_RESET(s->start_limit);
3735 static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
3736 Service *s = SERVICE(u);
3738 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3741 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3742 [SERVICE_DEAD] = "dead",
3743 [SERVICE_START_PRE] = "start-pre",
3744 [SERVICE_START] = "start",
3745 [SERVICE_START_POST] = "start-post",
3746 [SERVICE_RUNNING] = "running",
3747 [SERVICE_EXITED] = "exited",
3748 [SERVICE_RELOAD] = "reload",
3749 [SERVICE_STOP] = "stop",
3750 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3751 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3752 [SERVICE_STOP_POST] = "stop-post",
3753 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3754 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3755 [SERVICE_FAILED] = "failed",
3756 [SERVICE_AUTO_RESTART] = "auto-restart",
3759 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3761 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3762 [SERVICE_RESTART_NO] = "no",
3763 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3764 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3765 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3766 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3767 [SERVICE_RESTART_ALWAYS] = "always"
3770 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3772 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3773 [SERVICE_SIMPLE] = "simple",
3774 [SERVICE_FORKING] = "forking",
3775 [SERVICE_ONESHOT] = "oneshot",
3776 [SERVICE_DBUS] = "dbus",
3777 [SERVICE_NOTIFY] = "notify",
3778 [SERVICE_IDLE] = "idle"
3781 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3783 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3784 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3785 [SERVICE_EXEC_START] = "ExecStart",
3786 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3787 [SERVICE_EXEC_RELOAD] = "ExecReload",
3788 [SERVICE_EXEC_STOP] = "ExecStop",
3789 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3792 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3794 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3795 [NOTIFY_NONE] = "none",
3796 [NOTIFY_MAIN] = "main",
3797 [NOTIFY_ALL] = "all"
3800 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3802 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3803 [SERVICE_SUCCESS] = "success",
3804 [SERVICE_FAILURE_RESOURCES] = "resources",
3805 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3806 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3807 [SERVICE_FAILURE_SIGNAL] = "signal",
3808 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3809 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3810 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3813 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3815 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3816 [SERVICE_START_LIMIT_NONE] = "none",
3817 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3818 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3819 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3821 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3823 const UnitVTable service_vtable = {
3824 .object_size = sizeof(Service),
3825 .exec_context_offset = offsetof(Service, exec_context),
3826 .cgroup_context_offset = offsetof(Service, cgroup_context),
3827 .kill_context_offset = offsetof(Service, kill_context),
3828 .exec_runtime_offset = offsetof(Service, exec_runtime),
3834 .private_section = "Service",
3836 .init = service_init,
3837 .done = service_done,
3838 .load = service_load,
3840 .coldplug = service_coldplug,
3842 .dump = service_dump,
3844 .start = service_start,
3845 .stop = service_stop,
3846 .reload = service_reload,
3848 .can_reload = service_can_reload,
3850 .kill = service_kill,
3852 .serialize = service_serialize,
3853 .deserialize_item = service_deserialize_item,
3855 .active_state = service_active_state,
3856 .sub_state_to_string = service_sub_state_to_string,
3858 .check_gc = service_check_gc,
3859 .check_snapshot = service_check_snapshot,
3861 .sigchld_event = service_sigchld_event,
3863 .reset_failed = service_reset_failed,
3865 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3866 .notify_message = service_notify_message,
3868 .bus_name_owner_change = service_bus_name_owner_change,
3870 .bus_interface = "org.freedesktop.systemd1.Service",
3871 .bus_vtable = bus_service_vtable,
3872 .bus_set_property = bus_service_set_property,
3873 .bus_commit_properties = bus_service_commit_properties,
3875 .get_timeout = service_get_timeout,
3877 #ifdef HAVE_SYSV_COMPAT
3878 .enumerate = service_enumerate,
3881 .can_transient = true,
3883 .status_message_formats = {
3884 .starting_stopping = {
3885 [0] = "Starting %s...",
3886 [1] = "Stopping %s...",
3888 .finished_start_job = {
3889 [JOB_DONE] = "Started %s.",
3890 [JOB_FAILED] = "Failed to start %s.",
3891 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3892 [JOB_TIMEOUT] = "Timed out starting %s.",
3894 .finished_stop_job = {
3895 [JOB_DONE] = "Stopped %s.",
3896 [JOB_FAILED] = "Stopped (with error) %s.",
3897 [JOB_TIMEOUT] = "Timed out stopping %s.",