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 "bus-errors.h"
40 #include "exit-status.h"
42 #include "path-util.h"
48 #ifdef HAVE_SYSV_COMPAT
50 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
52 typedef enum RunlevelType {
60 const RunlevelType type;
62 /* Standard SysV runlevels for start-up */
63 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
64 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
65 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
66 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
67 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
69 /* Standard SysV runlevels for shutdown */
70 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
71 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
73 /* Note that the order here matters, as we read the
74 directories in this order, and we want to make sure that
75 sysv_start_priority is known when we first load the
76 unit. And that value we only know from S links. Hence
77 UP must be read before DOWN */
80 #define RUNLEVELS_UP "12345"
83 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
84 [SERVICE_DEAD] = UNIT_INACTIVE,
85 [SERVICE_START_PRE] = UNIT_ACTIVATING,
86 [SERVICE_START] = UNIT_ACTIVATING,
87 [SERVICE_START_POST] = UNIT_ACTIVATING,
88 [SERVICE_RUNNING] = UNIT_ACTIVE,
89 [SERVICE_EXITED] = UNIT_ACTIVE,
90 [SERVICE_RELOAD] = UNIT_RELOADING,
91 [SERVICE_STOP] = UNIT_DEACTIVATING,
92 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
93 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
94 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
95 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
96 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
97 [SERVICE_FAILED] = UNIT_FAILED,
98 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
101 /* For Type=idle we never want to delay any other jobs, hence we
102 * consider idle jobs active as soon as we start working on them */
103 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
104 [SERVICE_DEAD] = UNIT_INACTIVE,
105 [SERVICE_START_PRE] = UNIT_ACTIVE,
106 [SERVICE_START] = UNIT_ACTIVE,
107 [SERVICE_START_POST] = UNIT_ACTIVE,
108 [SERVICE_RUNNING] = UNIT_ACTIVE,
109 [SERVICE_EXITED] = UNIT_ACTIVE,
110 [SERVICE_RELOAD] = UNIT_RELOADING,
111 [SERVICE_STOP] = UNIT_DEACTIVATING,
112 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
113 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
114 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
115 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
116 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
117 [SERVICE_FAILED] = UNIT_FAILED,
118 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
121 static void service_init(Unit *u) {
122 Service *s = SERVICE(u);
125 assert(u->load_state == UNIT_STUB);
127 s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
128 s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
129 s->restart_usec = DEFAULT_RESTART_USEC;
130 s->type = _SERVICE_TYPE_INVALID;
132 watch_init(&s->watchdog_watch);
133 watch_init(&s->timer_watch);
135 #ifdef HAVE_SYSV_COMPAT
136 s->sysv_start_priority = -1;
137 s->sysv_start_priority_from_rcnd = -1;
140 s->guess_main_pid = true;
142 exec_context_init(&s->exec_context);
143 kill_context_init(&s->kill_context);
145 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
147 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
150 static void service_unwatch_control_pid(Service *s) {
153 if (s->control_pid <= 0)
156 unit_unwatch_pid(UNIT(s), s->control_pid);
160 static void service_unwatch_main_pid(Service *s) {
163 if (s->main_pid <= 0)
166 unit_unwatch_pid(UNIT(s), s->main_pid);
170 static void service_unwatch_pid_file(Service *s) {
171 if (!s->pid_file_pathspec)
174 log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
175 UNIT(s)->id, s->pid_file_pathspec->path);
176 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
177 path_spec_done(s->pid_file_pathspec);
178 free(s->pid_file_pathspec);
179 s->pid_file_pathspec = NULL;
182 static int service_set_main_pid(Service *s, pid_t pid) {
194 s->main_pid_known = true;
196 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
197 log_warning_unit(UNIT(s)->id,
198 "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
199 UNIT(s)->id, (unsigned long) pid);
201 s->main_pid_alien = true;
203 s->main_pid_alien = false;
205 exec_status_start(&s->main_exec_status, pid);
210 static void service_close_socket_fd(Service *s) {
213 if (s->socket_fd < 0)
216 close_nointr_nofail(s->socket_fd);
220 static void service_connection_unref(Service *s) {
223 if (!UNIT_DEREF(s->accept_socket))
226 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
227 unit_ref_unset(&s->accept_socket);
230 static void service_stop_watchdog(Service *s) {
233 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
234 s->watchdog_timestamp.realtime = 0;
235 s->watchdog_timestamp.monotonic = 0;
238 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
240 static void service_handle_watchdog(Service *s) {
246 if (s->watchdog_usec == 0)
249 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
250 if (offset >= s->watchdog_usec) {
251 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
252 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
256 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->watchdog_usec - offset, &s->watchdog_watch);
258 log_warning_unit(UNIT(s)->id,
259 "%s failed to install watchdog timer: %s",
260 UNIT(s)->id, strerror(-r));
263 static void service_reset_watchdog(Service *s) {
266 dual_timestamp_get(&s->watchdog_timestamp);
267 service_handle_watchdog(s);
270 static void service_done(Unit *u) {
271 Service *s = SERVICE(u);
278 #ifdef HAVE_SYSV_COMPAT
279 free(s->sysv_runlevels);
280 s->sysv_runlevels = NULL;
283 free(s->status_text);
284 s->status_text = NULL;
286 exec_context_done(&s->exec_context);
287 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
288 s->control_command = NULL;
289 s->main_command = NULL;
291 set_free(s->restart_ignore_status.code);
292 s->restart_ignore_status.code = NULL;
293 set_free(s->restart_ignore_status.signal);
294 s->restart_ignore_status.signal = NULL;
296 set_free(s->success_status.code);
297 s->success_status.code = NULL;
298 set_free(s->success_status.signal);
299 s->success_status.signal = NULL;
301 /* This will leak a process, but at least no memory or any of
303 service_unwatch_main_pid(s);
304 service_unwatch_control_pid(s);
305 service_unwatch_pid_file(s);
308 unit_unwatch_bus_name(u, s->bus_name);
313 service_close_socket_fd(s);
314 service_connection_unref(s);
316 unit_ref_unset(&s->accept_socket);
318 service_stop_watchdog(s);
320 unit_unwatch_timer(u, &s->timer_watch);
323 #ifdef HAVE_SYSV_COMPAT
324 static char *sysv_translate_name(const char *name) {
327 r = new(char, strlen(name) + sizeof(".service"));
331 if (endswith(name, ".sh"))
332 /* Drop .sh suffix */
333 strcpy(stpcpy(r, name) - 3, ".service");
334 else if (startswith(name, "rc."))
335 /* Drop rc. prefix */
336 strcpy(stpcpy(r, name + 3), ".service");
338 /* Normal init script name */
339 strcpy(stpcpy(r, name), ".service");
344 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
346 /* We silently ignore the $ prefix here. According to the LSB
347 * spec it simply indicates whether something is a
348 * standardized name or a distribution-specific one. Since we
349 * just follow what already exists and do not introduce new
350 * uses or names we don't care who introduced a new name. */
352 static const char * const table[] = {
353 /* LSB defined facilities */
355 "network", SPECIAL_NETWORK_TARGET,
356 "named", SPECIAL_NSS_LOOKUP_TARGET,
357 "portmap", SPECIAL_RPCBIND_TARGET,
358 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
360 "time", SPECIAL_TIME_SYNC_TARGET,
370 n = *name == '$' ? name + 1 : name;
372 for (i = 0; i < ELEMENTSOF(table); i += 2) {
374 if (!streq(table[i], n))
380 r = strdup(table[i+1]);
387 /* If we don't know this name, fallback heuristics to figure
388 * out whether something is a target or a service alias. */
391 if (!unit_prefix_is_valid(n))
394 /* Facilities starting with $ are most likely targets */
395 r = unit_name_build(n, NULL, ".target");
396 } else if (filename && streq(name, filename))
397 /* Names equaling the file name of the services are redundant */
400 /* Everything else we assume to be normal service names */
401 r = sysv_translate_name(n);
412 static int sysv_fix_order(Service *s) {
418 if (s->sysv_start_priority < 0)
421 /* For each pair of services where at least one lacks a LSB
422 * header, we use the start priority value to order things. */
424 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
427 bool special_s, special_t;
434 if (UNIT(t)->load_state != UNIT_LOADED)
437 if (t->sysv_start_priority < 0)
440 /* If both units have modern headers we don't care
441 * about the priorities */
442 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
443 (UNIT(t)->fragment_path || t->sysv_has_lsb))
446 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
447 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
449 if (special_t && !special_s)
451 else if (special_s && !special_t)
453 else if (t->sysv_start_priority < s->sysv_start_priority)
455 else if (t->sysv_start_priority > s->sysv_start_priority)
460 /* FIXME: Maybe we should compare the name here lexicographically? */
462 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
469 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
472 if (!(c = new0(ExecCommand, 1)))
475 if (!(c->path = strdup(path))) {
480 if (!(c->argv = strv_new(path, arg1, NULL))) {
489 static int sysv_exec_commands(Service *s, const bool supports_reload) {
494 assert(UNIT(s)->source_path);
496 c = exec_command_new(UNIT(s)->source_path, "start");
499 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
501 c = exec_command_new(UNIT(s)->source_path, "stop");
504 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
506 if (supports_reload) {
507 c = exec_command_new(UNIT(s)->source_path, "reload");
510 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
516 static bool usage_contains_reload(const char *line) {
517 return (strcasestr(line, "{reload|") ||
518 strcasestr(line, "{reload}") ||
519 strcasestr(line, "{reload\"") ||
520 strcasestr(line, "|reload|") ||
521 strcasestr(line, "|reload}") ||
522 strcasestr(line, "|reload\""));
525 static int service_load_sysv_path(Service *s, const char *path) {
537 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
539 bool supports_reload = false;
546 f = fopen(path, "re");
548 r = errno == ENOENT ? 0 : -errno;
552 if (fstat(fileno(f), &st) < 0) {
557 free(u->source_path);
558 u->source_path = strdup(path);
559 if (!u->source_path) {
563 u->source_mtime = timespec_load(&st.st_mtim);
565 if (null_or_empty(&st)) {
566 u->load_state = UNIT_MASKED;
574 char l[LINE_MAX], *t;
576 if (!fgets(l, sizeof(l), f)) {
581 log_error_unit(u->id,
582 "Failed to read configuration file '%s': %s",
591 /* Try to figure out whether this init script supports
592 * the reload operation. This heuristic looks for
593 * "Usage" lines which include the reload option. */
594 if ( state == USAGE_CONTINUATION ||
595 (state == NORMAL && strcasestr(t, "usage"))) {
596 if (usage_contains_reload(t)) {
597 supports_reload = true;
599 } else if (t[strlen(t)-1] == '\\')
600 state = USAGE_CONTINUATION;
608 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
610 s->sysv_has_lsb = true;
614 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
620 t += strspn(t, WHITESPACE);
622 if (state == NORMAL) {
624 /* Try to parse Red Hat style chkconfig headers */
626 if (startswith_no_case(t, "chkconfig:")) {
628 char runlevels[16], *k;
632 if (sscanf(t+10, "%15s %i %*i",
634 &start_priority) != 2) {
636 log_warning_unit(u->id,
637 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
642 /* A start priority gathered from the
643 * symlink farms is preferred over the
644 * data from the LSB header. */
645 if (start_priority < 0 || start_priority > 99)
646 log_warning_unit(u->id,
647 "[%s:%u] Start priority out of range. Ignoring.",
650 s->sysv_start_priority = start_priority;
652 char_array_0(runlevels);
653 k = delete_chars(runlevels, WHITESPACE "-");
658 if (!(d = strdup(k))) {
663 free(s->sysv_runlevels);
664 s->sysv_runlevels = d;
667 } else if (startswith_no_case(t, "description:")) {
669 size_t k = strlen(t);
673 if (t[k-1] == '\\') {
678 if ((j = strstrip(t+12)) && *j) {
679 if (!(d = strdup(j))) {
686 free(chkconfig_description);
687 chkconfig_description = d;
689 } else if (startswith_no_case(t, "pidfile:")) {
696 if (!path_is_absolute(fn)) {
697 log_warning_unit(u->id,
698 "[%s:%u] PID file not absolute. Ignoring.",
703 if (!(fn = strdup(fn))) {
712 } else if (state == DESCRIPTION) {
714 /* Try to parse Red Hat style description
717 size_t k = strlen(t);
725 if ((j = strstrip(t)) && *j) {
728 if (chkconfig_description)
729 d = strjoin(chkconfig_description, " ", j, NULL);
738 free(chkconfig_description);
739 chkconfig_description = d;
742 } else if (state == LSB || state == LSB_DESCRIPTION) {
744 if (startswith_no_case(t, "Provides:")) {
750 FOREACH_WORD_QUOTED(w, z, t+9, i) {
753 if (!(n = strndup(w, z))) {
758 r = sysv_translate_facility(n, path_get_file_name(path), &m);
767 if (unit_name_to_type(m) == UNIT_SERVICE)
768 r = unit_add_name(u, m);
775 * indication that the
777 * now available. This
780 * targets do NOT pull
783 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
786 log_error_unit(u->id,
787 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
788 path, line, m, strerror(-r));
793 } else if (startswith_no_case(t, "Required-Start:") ||
794 startswith_no_case(t, "Should-Start:") ||
795 startswith_no_case(t, "X-Start-Before:") ||
796 startswith_no_case(t, "X-Start-After:")) {
802 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
805 if (!(n = strndup(w, z))) {
810 r = sysv_translate_facility(n, path_get_file_name(path), &m);
812 log_error_unit(u->id,
813 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
814 path, line, n, strerror(-r));
824 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
827 log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
828 path, line, m, strerror(-r));
832 } else if (startswith_no_case(t, "Default-Start:")) {
837 k = delete_chars(t+14, WHITESPACE "-");
840 if (!(d = strdup(k))) {
845 free(s->sysv_runlevels);
846 s->sysv_runlevels = d;
849 } else if (startswith_no_case(t, "Description:")) {
852 state = LSB_DESCRIPTION;
854 if ((j = strstrip(t+12)) && *j) {
855 if (!(d = strdup(j))) {
862 free(long_description);
863 long_description = d;
865 } else if (startswith_no_case(t, "Short-Description:")) {
870 if ((j = strstrip(t+18)) && *j) {
871 if (!(d = strdup(j))) {
878 free(short_description);
879 short_description = d;
881 } else if (state == LSB_DESCRIPTION) {
883 if (startswith(l, "#\t") || startswith(l, "# ")) {
886 if ((j = strstrip(t)) && *j) {
889 if (long_description)
890 d = strjoin(long_description, " ", t, NULL);
899 free(long_description);
900 long_description = d;
909 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
912 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
913 /* If there a runlevels configured for this service
914 * but none of the standard ones, then we assume this
915 * is some special kind of service (which might be
916 * needed for early boot) and don't create any links
919 UNIT(s)->default_dependencies = false;
921 /* Don't timeout special services during boot (like fsck) */
922 s->timeout_start_usec = 0;
923 s->timeout_stop_usec = 0;
925 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
926 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
929 /* Special setting for all SysV services */
930 s->type = SERVICE_FORKING;
931 s->remain_after_exit = !s->pid_file;
932 s->guess_main_pid = false;
933 s->restart = SERVICE_RESTART_NO;
934 s->exec_context.ignore_sigpipe = false;
935 s->kill_context.kill_mode = KILL_PROCESS;
937 /* We use the long description only if
938 * no short description is set. */
940 if (short_description)
941 description = short_description;
942 else if (chkconfig_description)
943 description = chkconfig_description;
944 else if (long_description)
945 description = long_description;
952 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
960 /* The priority that has been set in /etc/rcN.d/ hierarchies
961 * takes precedence over what is stored as default in the LSB
963 if (s->sysv_start_priority_from_rcnd >= 0)
964 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
966 u->load_state = UNIT_LOADED;
974 free(short_description);
975 free(long_description);
976 free(chkconfig_description);
981 static int service_load_sysv_name(Service *s, const char *name) {
987 /* For SysV services we strip the rc.* and *.sh
988 * prefixes/suffixes. */
989 if (startswith(name, "rc.") ||
990 endswith(name, ".sh.service"))
993 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
997 path = strjoin(*p, "/", name, NULL);
1001 assert(endswith(path, ".service"));
1002 path[strlen(path)-8] = 0;
1004 r = service_load_sysv_path(s, path);
1006 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1007 /* Try *.sh source'able init scripts */
1008 strcat(path, ".sh");
1009 r = service_load_sysv_path(s, path);
1013 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1014 /* Try rc.* init scripts */
1016 path = strjoin(*p, "/rc.", name, NULL);
1020 /* Drop .service suffix */
1021 path[strlen(path)-8] = 0;
1022 r = service_load_sysv_path(s, path);
1029 if (UNIT(s)->load_state != UNIT_STUB)
1036 static int service_load_sysv(Service *s) {
1043 /* Load service data from SysV init scripts, preferably with
1044 * LSB headers ... */
1046 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1049 if ((t = UNIT(s)->id))
1050 if ((r = service_load_sysv_name(s, t)) < 0)
1053 if (UNIT(s)->load_state == UNIT_STUB)
1054 SET_FOREACH(t, UNIT(s)->names, i) {
1055 if (t == UNIT(s)->id)
1058 if ((r = service_load_sysv_name(s, t)) < 0)
1061 if (UNIT(s)->load_state != UNIT_STUB)
1069 static int fsck_fix_order(Service *s) {
1075 if (s->fsck_passno <= 0)
1078 /* For each pair of services where both have an fsck priority
1079 * we order things based on it. */
1081 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1090 if (UNIT(t)->load_state != UNIT_LOADED)
1093 if (t->fsck_passno <= 0)
1096 if (t->fsck_passno < s->fsck_passno)
1098 else if (t->fsck_passno > s->fsck_passno)
1103 r = unit_add_dependency(UNIT(s), d, UNIT(t), true);
1111 static int service_verify(Service *s) {
1114 if (UNIT(s)->load_state != UNIT_LOADED)
1117 if (!s->exec_command[SERVICE_EXEC_START]) {
1118 log_error_unit(UNIT(s)->id,
1119 "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1123 if (s->type != SERVICE_ONESHOT &&
1124 s->exec_command[SERVICE_EXEC_START]->command_next) {
1125 log_error_unit(UNIT(s)->id,
1126 "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1130 if (s->type == SERVICE_DBUS && !s->bus_name) {
1131 log_error_unit(UNIT(s)->id,
1132 "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1136 if (s->bus_name && s->type != SERVICE_DBUS)
1137 log_warning_unit(UNIT(s)->id,
1138 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1140 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1141 log_error_unit(UNIT(s)->id,
1142 "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1149 static int service_add_default_dependencies(Service *s) {
1154 /* Add a number of automatic dependencies useful for the
1155 * majority of services. */
1157 /* First, pull in base system */
1158 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
1159 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1160 SPECIAL_BASIC_TARGET, NULL, true);
1164 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
1165 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1166 SPECIAL_SOCKETS_TARGET, NULL, true);
1171 /* Second, activate normal shutdown */
1172 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1173 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1177 static void service_fix_output(Service *s) {
1180 /* If nothing has been explicitly configured, patch default
1181 * output in. If input is socket/tty we avoid this however,
1182 * since in that case we want output to default to the same
1183 * place as we read input from. */
1185 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1186 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1187 s->exec_context.std_input == EXEC_INPUT_NULL)
1188 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1190 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1191 s->exec_context.std_input == EXEC_INPUT_NULL)
1192 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1195 static int service_load(Unit *u) {
1197 Service *s = SERVICE(u);
1201 /* Load a .service file */
1202 if ((r = unit_load_fragment(u)) < 0)
1205 #ifdef HAVE_SYSV_COMPAT
1206 /* Load a classic init script as a fallback, if we couldn't find anything */
1207 if (u->load_state == UNIT_STUB)
1208 if ((r = service_load_sysv(s)) < 0)
1212 /* Still nothing found? Then let's give up */
1213 if (u->load_state == UNIT_STUB)
1216 /* We were able to load something, then let's add in the
1217 * dropin directories. */
1218 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1221 /* This is a new unit? Then let's add in some extras */
1222 if (u->load_state == UNIT_LOADED) {
1223 if (s->type == _SERVICE_TYPE_INVALID)
1224 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1226 /* Oneshot services have disabled start timeout by default */
1227 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1228 s->timeout_start_usec = 0;
1230 service_fix_output(s);
1232 r = unit_add_exec_dependencies(u, &s->exec_context);
1236 r = unit_add_default_cgroups(u);
1240 #ifdef HAVE_SYSV_COMPAT
1241 r = sysv_fix_order(s);
1246 r = fsck_fix_order(s);
1251 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1254 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1255 s->notify_access = NOTIFY_MAIN;
1257 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1258 s->notify_access = NOTIFY_MAIN;
1260 if (s->type == SERVICE_DBUS || s->bus_name) {
1261 r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
1262 SPECIAL_DBUS_SOCKET, NULL, true);
1267 if (UNIT(s)->default_dependencies) {
1268 r = service_add_default_dependencies(s);
1273 r = unit_exec_context_defaults(u, &s->exec_context);
1278 return service_verify(s);
1281 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1283 ServiceExecCommand c;
1284 Service *s = SERVICE(u);
1285 const char *prefix2;
1286 char _cleanup_free_ *p2 = NULL;
1290 p2 = strappend(prefix, "\t");
1291 prefix2 = p2 ? p2 : prefix;
1294 "%sService State: %s\n"
1296 "%sReload Result: %s\n"
1297 "%sPermissionsStartOnly: %s\n"
1298 "%sRootDirectoryStartOnly: %s\n"
1299 "%sRemainAfterExit: %s\n"
1300 "%sGuessMainPID: %s\n"
1303 "%sNotifyAccess: %s\n",
1304 prefix, service_state_to_string(s->state),
1305 prefix, service_result_to_string(s->result),
1306 prefix, service_result_to_string(s->reload_result),
1307 prefix, yes_no(s->permissions_start_only),
1308 prefix, yes_no(s->root_directory_start_only),
1309 prefix, yes_no(s->remain_after_exit),
1310 prefix, yes_no(s->guess_main_pid),
1311 prefix, service_type_to_string(s->type),
1312 prefix, service_restart_to_string(s->restart),
1313 prefix, notify_access_to_string(s->notify_access));
1315 if (s->control_pid > 0)
1317 "%sControl PID: %lu\n",
1318 prefix, (unsigned long) s->control_pid);
1320 if (s->main_pid > 0)
1323 "%sMain PID Known: %s\n"
1324 "%sMain PID Alien: %s\n",
1325 prefix, (unsigned long) s->main_pid,
1326 prefix, yes_no(s->main_pid_known),
1327 prefix, yes_no(s->main_pid_alien));
1332 prefix, s->pid_file);
1337 "%sBus Name Good: %s\n",
1338 prefix, s->bus_name,
1339 prefix, yes_no(s->bus_name_good));
1341 kill_context_dump(&s->kill_context, f, prefix);
1342 exec_context_dump(&s->exec_context, f, prefix);
1344 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1346 if (!s->exec_command[c])
1349 fprintf(f, "%s-> %s:\n",
1350 prefix, service_exec_command_to_string(c));
1352 exec_command_dump_list(s->exec_command[c], f, prefix2);
1355 #ifdef HAVE_SYSV_COMPAT
1358 "%sSysV Init Script has LSB Header: %s\n"
1359 "%sSysVEnabled: %s\n",
1360 prefix, yes_no(s->sysv_has_lsb),
1361 prefix, yes_no(s->sysv_enabled));
1363 if (s->sysv_start_priority >= 0)
1365 "%sSysVStartPriority: %i\n",
1366 prefix, s->sysv_start_priority);
1368 if (s->sysv_runlevels)
1369 fprintf(f, "%sSysVRunLevels: %s\n",
1370 prefix, s->sysv_runlevels);
1373 if (s->fsck_passno > 0)
1375 "%sFsckPassNo: %i\n",
1376 prefix, s->fsck_passno);
1379 fprintf(f, "%sStatus Text: %s\n",
1380 prefix, s->status_text);
1383 static int service_load_pid_file(Service *s, bool may_warn) {
1384 char _cleanup_free_ *k = NULL;
1393 r = read_one_line_file(s->pid_file, &k);
1396 log_info_unit(UNIT(s)->id,
1397 "PID file %s not readable (yet?) after %s.",
1398 s->pid_file, service_state_to_string(s->state));
1402 r = parse_pid(k, &pid);
1405 log_info_unit(UNIT(s)->id,
1406 "Failed to read PID from file %s: %s",
1407 s->pid_file, strerror(-r));
1411 if (kill(pid, 0) < 0 && errno != EPERM) {
1413 log_info_unit(UNIT(s)->id,
1414 "PID %lu read from file %s does not exist.",
1415 (unsigned long) pid, s->pid_file);
1419 if (s->main_pid_known) {
1420 if (pid == s->main_pid)
1423 log_debug_unit(UNIT(s)->id,
1424 "Main PID changing: %lu -> %lu",
1425 (unsigned long) s->main_pid, (unsigned long) pid);
1426 service_unwatch_main_pid(s);
1427 s->main_pid_known = false;
1429 log_debug_unit(UNIT(s)->id,
1430 "Main PID loaded: %lu", (unsigned long) pid);
1432 r = service_set_main_pid(s, pid);
1436 r = unit_watch_pid(UNIT(s), pid);
1438 /* FIXME: we need to do something here */
1439 log_warning_unit(UNIT(s)->id,
1440 "Failed to watch PID %lu from service %s",
1441 (unsigned long) pid, UNIT(s)->id);
1448 static int service_search_main_pid(Service *s) {
1454 /* If we know it anyway, don't ever fallback to unreliable
1456 if (s->main_pid_known)
1459 if (!s->guess_main_pid)
1462 assert(s->main_pid <= 0);
1464 pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings);
1468 log_debug_unit(UNIT(s)->id,
1469 "Main PID guessed: %lu", (unsigned long) pid);
1470 r = service_set_main_pid(s, pid);
1474 r = unit_watch_pid(UNIT(s), pid);
1476 /* FIXME: we need to do something here */
1482 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1488 /* Notifies all our sockets when we die */
1490 if (s->socket_fd >= 0)
1493 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1494 if (u->type == UNIT_SOCKET)
1495 socket_notify_service_dead(SOCKET(u), failed_permanent);
1500 static void service_set_state(Service *s, ServiceState state) {
1501 ServiceState old_state;
1502 const UnitActiveState *table;
1505 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1507 old_state = s->state;
1510 service_unwatch_pid_file(s);
1512 if (state != SERVICE_START_PRE &&
1513 state != SERVICE_START &&
1514 state != SERVICE_START_POST &&
1515 state != SERVICE_RELOAD &&
1516 state != SERVICE_STOP &&
1517 state != SERVICE_STOP_SIGTERM &&
1518 state != SERVICE_STOP_SIGKILL &&
1519 state != SERVICE_STOP_POST &&
1520 state != SERVICE_FINAL_SIGTERM &&
1521 state != SERVICE_FINAL_SIGKILL &&
1522 state != SERVICE_AUTO_RESTART)
1523 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1525 if (state != SERVICE_START &&
1526 state != SERVICE_START_POST &&
1527 state != SERVICE_RUNNING &&
1528 state != SERVICE_RELOAD &&
1529 state != SERVICE_STOP &&
1530 state != SERVICE_STOP_SIGTERM &&
1531 state != SERVICE_STOP_SIGKILL) {
1532 service_unwatch_main_pid(s);
1533 s->main_command = NULL;
1536 if (state != SERVICE_START_PRE &&
1537 state != SERVICE_START &&
1538 state != SERVICE_START_POST &&
1539 state != SERVICE_RELOAD &&
1540 state != SERVICE_STOP &&
1541 state != SERVICE_STOP_SIGTERM &&
1542 state != SERVICE_STOP_SIGKILL &&
1543 state != SERVICE_STOP_POST &&
1544 state != SERVICE_FINAL_SIGTERM &&
1545 state != SERVICE_FINAL_SIGKILL) {
1546 service_unwatch_control_pid(s);
1547 s->control_command = NULL;
1548 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1551 if (state == SERVICE_FAILED)
1552 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1554 if (state == SERVICE_DEAD ||
1555 state == SERVICE_STOP ||
1556 state == SERVICE_STOP_SIGTERM ||
1557 state == SERVICE_STOP_SIGKILL ||
1558 state == SERVICE_STOP_POST ||
1559 state == SERVICE_FINAL_SIGTERM ||
1560 state == SERVICE_FINAL_SIGKILL ||
1561 state == SERVICE_AUTO_RESTART)
1562 service_notify_sockets_dead(s, false);
1564 if (state != SERVICE_START_PRE &&
1565 state != SERVICE_START &&
1566 state != SERVICE_START_POST &&
1567 state != SERVICE_RUNNING &&
1568 state != SERVICE_RELOAD &&
1569 state != SERVICE_STOP &&
1570 state != SERVICE_STOP_SIGTERM &&
1571 state != SERVICE_STOP_SIGKILL &&
1572 state != SERVICE_STOP_POST &&
1573 state != SERVICE_FINAL_SIGTERM &&
1574 state != SERVICE_FINAL_SIGKILL &&
1575 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1576 service_close_socket_fd(s);
1577 service_connection_unref(s);
1580 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1581 service_stop_watchdog(s);
1583 /* For the inactive states unit_notify() will trim the cgroup,
1584 * but for exit we have to do that ourselves... */
1585 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1586 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1588 if (old_state != state)
1589 log_debug_unit(UNIT(s)->id,
1590 "%s changed %s -> %s", UNIT(s)->id,
1591 service_state_to_string(old_state),
1592 service_state_to_string(state));
1594 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1595 s->reload_result = SERVICE_SUCCESS;
1598 static int service_coldplug(Unit *u) {
1599 Service *s = SERVICE(u);
1603 assert(s->state == SERVICE_DEAD);
1605 if (s->deserialized_state != s->state) {
1607 if (s->deserialized_state == SERVICE_START_PRE ||
1608 s->deserialized_state == SERVICE_START ||
1609 s->deserialized_state == SERVICE_START_POST ||
1610 s->deserialized_state == SERVICE_RELOAD ||
1611 s->deserialized_state == SERVICE_STOP ||
1612 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1613 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1614 s->deserialized_state == SERVICE_STOP_POST ||
1615 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1616 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1617 s->deserialized_state == SERVICE_AUTO_RESTART) {
1618 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1621 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1623 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1629 if ((s->deserialized_state == SERVICE_START &&
1630 (s->type == SERVICE_FORKING ||
1631 s->type == SERVICE_DBUS ||
1632 s->type == SERVICE_ONESHOT ||
1633 s->type == SERVICE_NOTIFY)) ||
1634 s->deserialized_state == SERVICE_START_POST ||
1635 s->deserialized_state == SERVICE_RUNNING ||
1636 s->deserialized_state == SERVICE_RELOAD ||
1637 s->deserialized_state == SERVICE_STOP ||
1638 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1639 s->deserialized_state == SERVICE_STOP_SIGKILL)
1640 if (s->main_pid > 0) {
1641 r = unit_watch_pid(UNIT(s), s->main_pid);
1646 if (s->deserialized_state == SERVICE_START_PRE ||
1647 s->deserialized_state == SERVICE_START ||
1648 s->deserialized_state == SERVICE_START_POST ||
1649 s->deserialized_state == SERVICE_RELOAD ||
1650 s->deserialized_state == SERVICE_STOP ||
1651 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1652 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1653 s->deserialized_state == SERVICE_STOP_POST ||
1654 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1655 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1656 if (s->control_pid > 0) {
1657 r = unit_watch_pid(UNIT(s), s->control_pid);
1662 if (s->deserialized_state == SERVICE_START_POST ||
1663 s->deserialized_state == SERVICE_RUNNING)
1664 service_handle_watchdog(s);
1666 service_set_state(s, s->deserialized_state);
1671 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1675 unsigned rn_fds = 0;
1682 if (s->socket_fd >= 0)
1685 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1690 if (u->type != UNIT_SOCKET)
1695 r = socket_collect_fds(sock, &cfds, &cn_fds);
1708 t = new(int, rn_fds+cn_fds);
1715 memcpy(t, rfds, rn_fds * sizeof(int));
1716 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1721 rn_fds = rn_fds+cn_fds;
1736 static int service_spawn(
1741 bool apply_permissions,
1743 bool apply_tty_stdin,
1744 bool set_notify_socket,
1751 int _cleanup_free_ *fdsbuf = NULL;
1752 unsigned n_fds = 0, n_env = 0;
1753 char _cleanup_strv_free_
1754 **argv = NULL, **final_env = NULL, **our_env = NULL;
1761 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1762 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1763 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1765 if (s->socket_fd >= 0) {
1766 fds = &s->socket_fd;
1769 r = service_collect_fds(s, &fdsbuf, &n_fds);
1777 if (timeout && s->timeout_start_usec) {
1778 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1779 s->timeout_start_usec, &s->timer_watch);
1783 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1785 argv = unit_full_printf_strv(UNIT(s), c->argv);
1791 our_env = new0(char*, 5);
1797 if (set_notify_socket)
1798 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1803 if (s->main_pid > 0)
1804 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1809 if (s->watchdog_usec > 0)
1810 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1815 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1816 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1821 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1835 UNIT(s)->manager->confirm_spawn,
1836 UNIT(s)->cgroup_bondings,
1837 UNIT(s)->cgroup_attributes,
1838 is_control ? "control" : NULL,
1840 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1845 r = unit_watch_pid(UNIT(s), pid);
1847 /* FIXME: we need to do something here */
1856 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1861 static int main_pid_good(Service *s) {
1864 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1867 /* If we know the pid file, then lets just check if it is
1869 if (s->main_pid_known) {
1871 /* If it's an alien child let's check if it is still
1873 if (s->main_pid_alien)
1874 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1876 /* .. otherwise assume we'll get a SIGCHLD for it,
1877 * which we really should wait for to collect exit
1878 * status and code */
1879 return s->main_pid > 0;
1882 /* We don't know the pid */
1886 static int control_pid_good(Service *s) {
1889 return s->control_pid > 0;
1892 static int cgroup_good(Service *s) {
1897 r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
1904 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1908 if (f != SERVICE_SUCCESS)
1911 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1913 if (allow_restart &&
1914 !s->forbid_restart &&
1915 (s->restart == SERVICE_RESTART_ALWAYS ||
1916 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1917 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1918 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1919 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1920 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1921 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1922 (s->result != SERVICE_FAILURE_SIGNAL ||
1923 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1926 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1930 service_set_state(s, SERVICE_AUTO_RESTART);
1933 s->forbid_restart = false;
1938 log_warning_unit(UNIT(s)->id,
1939 "%s failed to run install restart timer: %s",
1940 UNIT(s)->id, strerror(-r));
1941 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1944 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1946 static void service_enter_stop_post(Service *s, ServiceResult f) {
1950 if (f != SERVICE_SUCCESS)
1953 service_unwatch_control_pid(s);
1955 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1956 if (s->control_command) {
1957 s->control_command_id = SERVICE_EXEC_STOP_POST;
1959 r = service_spawn(s,
1963 !s->permissions_start_only,
1964 !s->root_directory_start_only,
1973 service_set_state(s, SERVICE_STOP_POST);
1975 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1980 log_warning_unit(UNIT(s)->id,
1981 "%s failed to run 'stop-post' task: %s",
1982 UNIT(s)->id, strerror(-r));
1983 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1986 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1991 if (f != SERVICE_SUCCESS)
1994 r = unit_kill_context(
1997 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2005 if (s->timeout_stop_usec > 0) {
2006 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2007 s->timeout_stop_usec, &s->timer_watch);
2012 service_set_state(s, state);
2013 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2014 service_enter_stop_post(s, SERVICE_SUCCESS);
2016 service_enter_dead(s, SERVICE_SUCCESS, true);
2021 log_warning_unit(UNIT(s)->id,
2022 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2024 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2025 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2027 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2030 static void service_enter_stop(Service *s, ServiceResult f) {
2035 if (f != SERVICE_SUCCESS)
2038 service_unwatch_control_pid(s);
2040 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2041 if (s->control_command) {
2042 s->control_command_id = SERVICE_EXEC_STOP;
2044 r = service_spawn(s,
2048 !s->permissions_start_only,
2049 !s->root_directory_start_only,
2057 service_set_state(s, SERVICE_STOP);
2059 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2064 log_warning_unit(UNIT(s)->id,
2065 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2066 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2069 static void service_enter_running(Service *s, ServiceResult f) {
2070 int main_pid_ok, cgroup_ok;
2073 if (f != SERVICE_SUCCESS)
2076 main_pid_ok = main_pid_good(s);
2077 cgroup_ok = cgroup_good(s);
2079 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2080 (s->bus_name_good || s->type != SERVICE_DBUS))
2081 service_set_state(s, SERVICE_RUNNING);
2082 else if (s->remain_after_exit)
2083 service_set_state(s, SERVICE_EXITED);
2085 service_enter_stop(s, SERVICE_SUCCESS);
2088 static void service_enter_start_post(Service *s) {
2092 service_unwatch_control_pid(s);
2094 if (s->watchdog_usec > 0)
2095 service_reset_watchdog(s);
2097 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2098 if (s->control_command) {
2099 s->control_command_id = SERVICE_EXEC_START_POST;
2101 r = service_spawn(s,
2105 !s->permissions_start_only,
2106 !s->root_directory_start_only,
2114 service_set_state(s, SERVICE_START_POST);
2116 service_enter_running(s, SERVICE_SUCCESS);
2121 log_warning_unit(UNIT(s)->id,
2122 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2123 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2126 static void service_enter_start(Service *s) {
2133 assert(s->exec_command[SERVICE_EXEC_START]);
2134 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2136 if (s->type == SERVICE_FORKING)
2137 service_unwatch_control_pid(s);
2139 service_unwatch_main_pid(s);
2141 /* We want to ensure that nobody leaks processes from
2142 * START_PRE here, so let's go on a killing spree, People
2143 * should not spawn long running processes from START_PRE. */
2144 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2146 if (s->type == SERVICE_FORKING) {
2147 s->control_command_id = SERVICE_EXEC_START;
2148 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2150 s->main_command = NULL;
2152 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2153 s->control_command = NULL;
2155 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2158 r = service_spawn(s,
2160 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2161 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2166 s->notify_access != NOTIFY_NONE,
2172 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2173 /* For simple services we immediately start
2174 * the START_POST binaries. */
2176 service_set_main_pid(s, pid);
2177 service_enter_start_post(s);
2179 } else if (s->type == SERVICE_FORKING) {
2181 /* For forking services we wait until the start
2182 * process exited. */
2184 s->control_pid = pid;
2185 service_set_state(s, SERVICE_START);
2187 } else if (s->type == SERVICE_ONESHOT ||
2188 s->type == SERVICE_DBUS ||
2189 s->type == SERVICE_NOTIFY) {
2191 /* For oneshot services we wait until the start
2192 * process exited, too, but it is our main process. */
2194 /* For D-Bus services we know the main pid right away,
2195 * but wait for the bus name to appear on the
2196 * bus. Notify services are similar. */
2198 service_set_main_pid(s, pid);
2199 service_set_state(s, SERVICE_START);
2201 assert_not_reached("Unknown service type");
2206 log_warning_unit(UNIT(s)->id,
2207 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2208 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2211 static void service_enter_start_pre(Service *s) {
2216 service_unwatch_control_pid(s);
2218 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2219 if (s->control_command) {
2221 /* Before we start anything, let's clear up what might
2222 * be left from previous runs. */
2223 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
2224 true,true, NULL, "control");
2226 s->control_command_id = SERVICE_EXEC_START_PRE;
2228 r = service_spawn(s,
2232 !s->permissions_start_only,
2233 !s->root_directory_start_only,
2241 service_set_state(s, SERVICE_START_PRE);
2243 service_enter_start(s);
2248 log_warning_unit(UNIT(s)->id,
2249 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2250 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2253 static void service_enter_restart(Service *s) {
2258 dbus_error_init(&error);
2260 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2261 /* Don't restart things if we are going down anyway */
2262 log_info_unit(UNIT(s)->id,
2263 "Stop job pending for unit, delaying automatic restart.");
2265 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2272 /* Any units that are bound to this service must also be
2273 * restarted. We use JOB_RESTART (instead of the more obvious
2274 * JOB_START) here so that those dependency jobs will be added
2276 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2280 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2281 * it will be canceled as part of the service_stop() call that
2282 * is executed as part of JOB_RESTART. */
2284 log_debug_unit(UNIT(s)->id,
2285 "%s scheduled restart job.", UNIT(s)->id);
2289 log_warning_unit(UNIT(s)->id,
2290 "%s failed to schedule restart job: %s",
2291 UNIT(s)->id, bus_error(&error, -r));
2292 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2294 dbus_error_free(&error);
2297 static void service_enter_reload(Service *s) {
2302 service_unwatch_control_pid(s);
2304 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2305 if (s->control_command) {
2306 s->control_command_id = SERVICE_EXEC_RELOAD;
2308 r = service_spawn(s,
2312 !s->permissions_start_only,
2313 !s->root_directory_start_only,
2321 service_set_state(s, SERVICE_RELOAD);
2323 service_enter_running(s, SERVICE_SUCCESS);
2328 log_warning_unit(UNIT(s)->id,
2329 "%s failed to run 'reload' task: %s",
2330 UNIT(s)->id, strerror(-r));
2331 s->reload_result = SERVICE_FAILURE_RESOURCES;
2332 service_enter_running(s, SERVICE_SUCCESS);
2335 static void service_run_next_control(Service *s) {
2339 assert(s->control_command);
2340 assert(s->control_command->command_next);
2342 assert(s->control_command_id != SERVICE_EXEC_START);
2344 s->control_command = s->control_command->command_next;
2345 service_unwatch_control_pid(s);
2347 r = service_spawn(s,
2351 !s->permissions_start_only,
2352 !s->root_directory_start_only,
2353 s->control_command_id == SERVICE_EXEC_START_PRE ||
2354 s->control_command_id == SERVICE_EXEC_STOP_POST,
2364 log_warning_unit(UNIT(s)->id,
2365 "%s failed to run next control task: %s",
2366 UNIT(s)->id, strerror(-r));
2368 if (s->state == SERVICE_START_PRE)
2369 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2370 else if (s->state == SERVICE_STOP)
2371 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2372 else if (s->state == SERVICE_STOP_POST)
2373 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2374 else if (s->state == SERVICE_RELOAD) {
2375 s->reload_result = SERVICE_FAILURE_RESOURCES;
2376 service_enter_running(s, SERVICE_SUCCESS);
2378 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2381 static void service_run_next_main(Service *s) {
2386 assert(s->main_command);
2387 assert(s->main_command->command_next);
2388 assert(s->type == SERVICE_ONESHOT);
2390 s->main_command = s->main_command->command_next;
2391 service_unwatch_main_pid(s);
2393 r = service_spawn(s,
2400 s->notify_access != NOTIFY_NONE,
2406 service_set_main_pid(s, pid);
2411 log_warning_unit(UNIT(s)->id,
2412 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2413 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2416 static int service_start_limit_test(Service *s) {
2419 if (ratelimit_test(&s->start_limit))
2422 switch (s->start_limit_action) {
2424 case SERVICE_START_LIMIT_NONE:
2425 log_warning_unit(UNIT(s)->id,
2426 "%s start request repeated too quickly, refusing to start.",
2430 case SERVICE_START_LIMIT_REBOOT: {
2434 dbus_error_init(&error);
2436 log_warning_unit(UNIT(s)->id,
2437 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2439 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2440 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2441 true, &error, NULL);
2443 log_error_unit(UNIT(s)->id,
2444 "Failed to reboot: %s.", bus_error(&error, r));
2445 dbus_error_free(&error);
2451 case SERVICE_START_LIMIT_REBOOT_FORCE:
2452 log_warning_unit(UNIT(s)->id,
2453 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2454 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2457 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2458 log_warning_unit(UNIT(s)->id,
2459 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2461 reboot(RB_AUTOBOOT);
2465 log_error_unit(UNIT(s)->id,
2466 "start limit action=%i", s->start_limit_action);
2467 assert_not_reached("Unknown StartLimitAction.");
2473 static int service_start(Unit *u) {
2474 Service *s = SERVICE(u);
2479 /* We cannot fulfill this request right now, try again later
2481 if (s->state == SERVICE_STOP ||
2482 s->state == SERVICE_STOP_SIGTERM ||
2483 s->state == SERVICE_STOP_SIGKILL ||
2484 s->state == SERVICE_STOP_POST ||
2485 s->state == SERVICE_FINAL_SIGTERM ||
2486 s->state == SERVICE_FINAL_SIGKILL)
2489 /* Already on it! */
2490 if (s->state == SERVICE_START_PRE ||
2491 s->state == SERVICE_START ||
2492 s->state == SERVICE_START_POST)
2495 /* A service that will be restarted must be stopped first to
2496 * trigger BindsTo and/or OnFailure dependencies. If a user
2497 * does not want to wait for the holdoff time to elapse, the
2498 * service should be manually restarted, not started. We
2499 * simply return EAGAIN here, so that any start jobs stay
2500 * queued, and assume that the auto restart timer will
2501 * eventually trigger the restart. */
2502 if (s->state == SERVICE_AUTO_RESTART)
2505 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2507 /* Make sure we don't enter a busy loop of some kind. */
2508 r = service_start_limit_test(s);
2510 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2514 s->result = SERVICE_SUCCESS;
2515 s->reload_result = SERVICE_SUCCESS;
2516 s->main_pid_known = false;
2517 s->main_pid_alien = false;
2518 s->forbid_restart = false;
2520 service_enter_start_pre(s);
2524 static int service_stop(Unit *u) {
2525 Service *s = SERVICE(u);
2529 /* Don't create restart jobs from here. */
2530 s->forbid_restart = true;
2533 if (s->state == SERVICE_STOP ||
2534 s->state == SERVICE_STOP_SIGTERM ||
2535 s->state == SERVICE_STOP_SIGKILL ||
2536 s->state == SERVICE_STOP_POST ||
2537 s->state == SERVICE_FINAL_SIGTERM ||
2538 s->state == SERVICE_FINAL_SIGKILL)
2541 /* A restart will be scheduled or is in progress. */
2542 if (s->state == SERVICE_AUTO_RESTART) {
2543 service_set_state(s, SERVICE_DEAD);
2547 /* If there's already something running we go directly into
2549 if (s->state == SERVICE_START_PRE ||
2550 s->state == SERVICE_START ||
2551 s->state == SERVICE_START_POST ||
2552 s->state == SERVICE_RELOAD) {
2553 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2557 assert(s->state == SERVICE_RUNNING ||
2558 s->state == SERVICE_EXITED);
2560 service_enter_stop(s, SERVICE_SUCCESS);
2564 static int service_reload(Unit *u) {
2565 Service *s = SERVICE(u);
2569 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2571 service_enter_reload(s);
2575 static bool service_can_reload(Unit *u) {
2576 Service *s = SERVICE(u);
2580 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2583 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2584 Service *s = SERVICE(u);
2590 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2591 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2592 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2594 if (s->control_pid > 0)
2595 unit_serialize_item_format(u, f, "control-pid", "%lu",
2596 (unsigned long) s->control_pid);
2598 if (s->main_pid_known && s->main_pid > 0)
2599 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2601 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2604 unit_serialize_item(u, f, "status-text", s->status_text);
2606 /* FIXME: There's a minor uncleanliness here: if there are
2607 * multiple commands attached here, we will start from the
2608 * first one again */
2609 if (s->control_command_id >= 0)
2610 unit_serialize_item(u, f, "control-command",
2611 service_exec_command_to_string(s->control_command_id));
2613 if (s->socket_fd >= 0) {
2616 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2619 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2622 if (s->main_exec_status.pid > 0) {
2623 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2624 (unsigned long) s->main_exec_status.pid);
2625 dual_timestamp_serialize(f, "main-exec-status-start",
2626 &s->main_exec_status.start_timestamp);
2627 dual_timestamp_serialize(f, "main-exec-status-exit",
2628 &s->main_exec_status.exit_timestamp);
2630 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2631 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2632 s->main_exec_status.code);
2633 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2634 s->main_exec_status.status);
2637 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2638 dual_timestamp_serialize(f, "watchdog-timestamp",
2639 &s->watchdog_timestamp);
2644 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2645 Service *s = SERVICE(u);
2652 if (streq(key, "state")) {
2655 state = service_state_from_string(value);
2657 log_debug_unit(u->id, "Failed to parse state value %s", value);
2659 s->deserialized_state = state;
2660 } else if (streq(key, "result")) {
2663 f = service_result_from_string(value);
2665 log_debug_unit(u->id, "Failed to parse result value %s", value);
2666 else if (f != SERVICE_SUCCESS)
2669 } else if (streq(key, "reload-result")) {
2672 f = service_result_from_string(value);
2674 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2675 else if (f != SERVICE_SUCCESS)
2676 s->reload_result = f;
2678 } else if (streq(key, "control-pid")) {
2681 if (parse_pid(value, &pid) < 0)
2682 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2684 s->control_pid = pid;
2685 } else if (streq(key, "main-pid")) {
2688 if (parse_pid(value, &pid) < 0)
2689 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2691 service_set_main_pid(s, (pid_t) pid);
2692 } else if (streq(key, "main-pid-known")) {
2695 b = parse_boolean(value);
2697 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2699 s->main_pid_known = b;
2700 } else if (streq(key, "status-text")) {
2707 free(s->status_text);
2711 } else if (streq(key, "control-command")) {
2712 ServiceExecCommand id;
2714 id = service_exec_command_from_string(value);
2716 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2718 s->control_command_id = id;
2719 s->control_command = s->exec_command[id];
2721 } else if (streq(key, "socket-fd")) {
2724 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2725 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2728 if (s->socket_fd >= 0)
2729 close_nointr_nofail(s->socket_fd);
2730 s->socket_fd = fdset_remove(fds, fd);
2732 } else if (streq(key, "main-exec-status-pid")) {
2735 if (parse_pid(value, &pid) < 0)
2736 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2738 s->main_exec_status.pid = pid;
2739 } else if (streq(key, "main-exec-status-code")) {
2742 if (safe_atoi(value, &i) < 0)
2743 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2745 s->main_exec_status.code = i;
2746 } else if (streq(key, "main-exec-status-status")) {
2749 if (safe_atoi(value, &i) < 0)
2750 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2752 s->main_exec_status.status = i;
2753 } else if (streq(key, "main-exec-status-start"))
2754 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2755 else if (streq(key, "main-exec-status-exit"))
2756 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2757 else if (streq(key, "watchdog-timestamp"))
2758 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2760 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2765 static UnitActiveState service_active_state(Unit *u) {
2766 const UnitActiveState *table;
2770 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2772 return table[SERVICE(u)->state];
2775 static const char *service_sub_state_to_string(Unit *u) {
2778 return service_state_to_string(SERVICE(u)->state);
2781 static bool service_check_gc(Unit *u) {
2782 Service *s = SERVICE(u);
2786 /* Never clean up services that still have a process around,
2787 * even if the service is formally dead. */
2788 if (cgroup_good(s) > 0 ||
2789 main_pid_good(s) > 0 ||
2790 control_pid_good(s) > 0)
2793 #ifdef HAVE_SYSV_COMPAT
2801 static bool service_check_snapshot(Unit *u) {
2802 Service *s = SERVICE(u);
2806 return !s->got_socket_fd;
2809 static int service_retry_pid_file(Service *s) {
2812 assert(s->pid_file);
2813 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2815 r = service_load_pid_file(s, false);
2819 service_unwatch_pid_file(s);
2821 service_enter_running(s, SERVICE_SUCCESS);
2825 static int service_watch_pid_file(Service *s) {
2828 log_debug_unit(UNIT(s)->id,
2829 "Setting watch for %s's PID file %s",
2830 UNIT(s)->id, s->pid_file_pathspec->path);
2831 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2835 /* the pidfile might have appeared just before we set the watch */
2836 log_debug_unit(UNIT(s)->id,
2837 "Trying to read %s's PID file %s in case it changed",
2838 UNIT(s)->id, s->pid_file_pathspec->path);
2839 service_retry_pid_file(s);
2843 log_error_unit(UNIT(s)->id,
2844 "Failed to set a watch for %s's PID file %s: %s",
2845 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2846 service_unwatch_pid_file(s);
2850 static int service_demand_pid_file(Service *s) {
2853 assert(s->pid_file);
2854 assert(!s->pid_file_pathspec);
2856 ps = new0(PathSpec, 1);
2860 ps->path = strdup(s->pid_file);
2866 path_kill_slashes(ps->path);
2868 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2869 * keep their PID file open all the time. */
2870 ps->type = PATH_MODIFIED;
2871 ps->inotify_fd = -1;
2873 s->pid_file_pathspec = ps;
2875 return service_watch_pid_file(s);
2878 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2879 Service *s = SERVICE(u);
2883 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2884 assert(s->pid_file_pathspec);
2885 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2887 log_debug_unit(u->id, "inotify event for %s", u->id);
2889 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2892 if (service_retry_pid_file(s) == 0)
2895 if (service_watch_pid_file(s) < 0)
2900 service_unwatch_pid_file(s);
2901 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2904 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2905 Service *s = SERVICE(u);
2911 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2912 is_clean_exit_lsb(code, status, &s->success_status))
2913 f = SERVICE_SUCCESS;
2914 else if (code == CLD_EXITED)
2915 f = SERVICE_FAILURE_EXIT_CODE;
2916 else if (code == CLD_KILLED)
2917 f = SERVICE_FAILURE_SIGNAL;
2918 else if (code == CLD_DUMPED)
2919 f = SERVICE_FAILURE_CORE_DUMP;
2921 assert_not_reached("Unknown code");
2923 if (s->main_pid == pid) {
2924 /* Forking services may occasionally move to a new PID.
2925 * As long as they update the PID file before exiting the old
2926 * PID, they're fine. */
2927 if (service_load_pid_file(s, false) == 0)
2931 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2933 if (s->main_command) {
2934 /* If this is not a forking service than the
2935 * main process got started and hence we copy
2936 * the exit status so that it is recorded both
2937 * as main and as control process exit
2940 s->main_command->exec_status = s->main_exec_status;
2942 if (s->main_command->ignore)
2943 f = SERVICE_SUCCESS;
2944 } else if (s->exec_command[SERVICE_EXEC_START]) {
2946 /* If this is a forked process, then we should
2947 * ignore the return value if this was
2948 * configured for the starter process */
2950 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2951 f = SERVICE_SUCCESS;
2954 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2956 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2957 u->id, sigchld_code_to_string(code), status,
2958 strna(code == CLD_EXITED
2959 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2960 : signal_to_string(status)),
2961 "EXIT_CODE=%s", sigchld_code_to_string(code),
2962 "EXIT_STATUS=%i", status,
2965 if (f != SERVICE_SUCCESS)
2968 if (s->main_command &&
2969 s->main_command->command_next &&
2970 f == SERVICE_SUCCESS) {
2972 /* There is another command to *
2973 * execute, so let's do that. */
2975 log_debug_unit(u->id,
2976 "%s running next main command for state %s",
2977 u->id, service_state_to_string(s->state));
2978 service_run_next_main(s);
2982 /* The service exited, so the service is officially
2984 s->main_command = NULL;
2988 case SERVICE_START_POST:
2989 case SERVICE_RELOAD:
2991 /* Need to wait until the operation is
2996 if (s->type == SERVICE_ONESHOT) {
2997 /* This was our main goal, so let's go on */
2998 if (f == SERVICE_SUCCESS)
2999 service_enter_start_post(s);
3001 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3007 case SERVICE_RUNNING:
3008 service_enter_running(s, f);
3011 case SERVICE_STOP_SIGTERM:
3012 case SERVICE_STOP_SIGKILL:
3014 if (!control_pid_good(s))
3015 service_enter_stop_post(s, f);
3017 /* If there is still a control process, wait for that first */
3021 assert_not_reached("Uh, main process died at wrong time.");
3025 } else if (s->control_pid == pid) {
3029 if (s->control_command) {
3030 exec_status_exit(&s->control_command->exec_status,
3031 &s->exec_context, pid, code, status);
3033 if (s->control_command->ignore)
3034 f = SERVICE_SUCCESS;
3037 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3038 "%s: control process exited, code=%s status=%i",
3039 u->id, sigchld_code_to_string(code), status);
3041 if (f != SERVICE_SUCCESS)
3044 /* Immediately get rid of the cgroup, so that the
3045 * kernel doesn't delay the cgroup empty messages for
3046 * the service cgroup any longer than necessary */
3047 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
3048 true, true, NULL, "control");
3050 if (s->control_command &&
3051 s->control_command->command_next &&
3052 f == SERVICE_SUCCESS) {
3054 /* There is another command to *
3055 * execute, so let's do that. */
3057 log_debug_unit(u->id,
3058 "%s running next control command for state %s",
3059 u->id, service_state_to_string(s->state));
3060 service_run_next_control(s);
3063 /* No further commands for this step, so let's
3064 * figure out what to do next */
3066 s->control_command = NULL;
3067 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3069 log_debug_unit(u->id,
3070 "%s got final SIGCHLD for state %s",
3071 u->id, service_state_to_string(s->state));
3075 case SERVICE_START_PRE:
3076 if (f == SERVICE_SUCCESS)
3077 service_enter_start(s);
3079 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3083 if (s->type != SERVICE_FORKING)
3084 /* Maybe spurious event due to a reload that changed the type? */
3087 if (f != SERVICE_SUCCESS) {
3088 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3093 bool has_start_post;
3096 /* Let's try to load the pid file here if we can.
3097 * The PID file might actually be created by a START_POST
3098 * script. In that case don't worry if the loading fails. */
3100 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3101 r = service_load_pid_file(s, !has_start_post);
3102 if (!has_start_post && r < 0) {
3103 r = service_demand_pid_file(s);
3104 if (r < 0 || !cgroup_good(s))
3105 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3109 service_search_main_pid(s);
3111 service_enter_start_post(s);
3114 case SERVICE_START_POST:
3115 if (f != SERVICE_SUCCESS) {
3116 service_enter_stop(s, f);
3123 r = service_load_pid_file(s, true);
3125 r = service_demand_pid_file(s);
3126 if (r < 0 || !cgroup_good(s))
3127 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3131 service_search_main_pid(s);
3133 service_enter_running(s, SERVICE_SUCCESS);
3136 case SERVICE_RELOAD:
3137 if (f == SERVICE_SUCCESS) {
3138 service_load_pid_file(s, true);
3139 service_search_main_pid(s);
3142 s->reload_result = f;
3143 service_enter_running(s, SERVICE_SUCCESS);
3147 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3150 case SERVICE_STOP_SIGTERM:
3151 case SERVICE_STOP_SIGKILL:
3152 if (main_pid_good(s) <= 0)
3153 service_enter_stop_post(s, f);
3155 /* If there is still a service
3156 * process around, wait until
3157 * that one quit, too */
3160 case SERVICE_STOP_POST:
3161 case SERVICE_FINAL_SIGTERM:
3162 case SERVICE_FINAL_SIGKILL:
3163 service_enter_dead(s, f, true);
3167 assert_not_reached("Uh, control process died at wrong time.");
3172 /* Notify clients about changed exit status */
3173 unit_add_to_dbus_queue(u);
3176 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3177 Service *s = SERVICE(u);
3180 assert(elapsed == 1);
3182 if (w == &s->watchdog_watch) {
3183 service_handle_watchdog(s);
3187 assert(w == &s->timer_watch);
3191 case SERVICE_START_PRE:
3193 log_warning_unit(u->id,
3194 "%s operation timed out. Terminating.", u->id);
3195 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3198 case SERVICE_START_POST:
3199 log_warning_unit(u->id,
3200 "%s operation timed out. Stopping.", u->id);
3201 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3204 case SERVICE_RELOAD:
3205 log_warning_unit(u->id,
3206 "%s operation timed out. Stopping.", u->id);
3207 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3208 service_enter_running(s, SERVICE_SUCCESS);
3212 log_warning_unit(u->id,
3213 "%s stopping timed out. Terminating.", u->id);
3214 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3217 case SERVICE_STOP_SIGTERM:
3218 if (s->kill_context.send_sigkill) {
3219 log_warning_unit(u->id,
3220 "%s stopping timed out. Killing.", u->id);
3221 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3223 log_warning_unit(u->id,
3224 "%s stopping timed out. Skipping SIGKILL.", u->id);
3225 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3230 case SERVICE_STOP_SIGKILL:
3231 /* Uh, we sent a SIGKILL and it is still not gone?
3232 * Must be something we cannot kill, so let's just be
3233 * weirded out and continue */
3235 log_warning_unit(u->id,
3236 "%s still around after SIGKILL. Ignoring.", u->id);
3237 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3240 case SERVICE_STOP_POST:
3241 log_warning_unit(u->id,
3242 "%s stopping timed out (2). Terminating.", u->id);
3243 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3246 case SERVICE_FINAL_SIGTERM:
3247 if (s->kill_context.send_sigkill) {
3248 log_warning_unit(u->id,
3249 "%s stopping timed out (2). Killing.", u->id);
3250 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3252 log_warning_unit(u->id,
3253 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3255 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3260 case SERVICE_FINAL_SIGKILL:
3261 log_warning_unit(u->id,
3262 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3263 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3266 case SERVICE_AUTO_RESTART:
3267 log_info_unit(u->id,
3268 "%s holdoff time over, scheduling restart.", u->id);
3269 service_enter_restart(s);
3273 assert_not_reached("Timeout at wrong time.");
3277 static void service_cgroup_notify_event(Unit *u) {
3278 Service *s = SERVICE(u);
3282 log_debug_unit(u->id,
3283 "%s: cgroup is empty", u->id);
3287 /* Waiting for SIGCHLD is usually more interesting,
3288 * because it includes return codes/signals. Which is
3289 * why we ignore the cgroup events for most cases,
3290 * except when we don't know pid which to expect the
3294 case SERVICE_START_POST:
3295 /* If we were hoping for the daemon to write its PID file,
3296 * we can give up now. */
3297 if (s->pid_file_pathspec) {
3298 log_warning_unit(u->id,
3299 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3300 service_unwatch_pid_file(s);
3301 if (s->state == SERVICE_START)
3302 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3304 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3308 case SERVICE_RUNNING:
3309 /* service_enter_running() will figure out what to do */
3310 service_enter_running(s, SERVICE_SUCCESS);
3313 case SERVICE_STOP_SIGTERM:
3314 case SERVICE_STOP_SIGKILL:
3316 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3317 service_enter_stop_post(s, SERVICE_SUCCESS);
3321 case SERVICE_FINAL_SIGTERM:
3322 case SERVICE_FINAL_SIGKILL:
3323 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3324 service_enter_dead(s, SERVICE_SUCCESS, true);
3333 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3334 Service *s = SERVICE(u);
3339 if (s->notify_access == NOTIFY_NONE) {
3340 log_warning_unit(u->id,
3341 "%s: Got notification message from PID %lu, but reception is disabled.",
3342 u->id, (unsigned long) pid);
3346 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3347 log_warning_unit(u->id,
3348 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3349 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3353 log_debug_unit(u->id,
3354 "%s: Got message", u->id);
3356 /* Interpret MAINPID= */
3357 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3358 (s->state == SERVICE_START ||
3359 s->state == SERVICE_START_POST ||
3360 s->state == SERVICE_RUNNING ||
3361 s->state == SERVICE_RELOAD)) {
3363 if (parse_pid(e + 8, &pid) < 0)
3364 log_warning_unit(u->id,
3365 "Failed to parse notification message %s", e);
3367 log_debug_unit(u->id,
3368 "%s: got %s", u->id, e);
3369 service_set_main_pid(s, pid);
3373 /* Interpret READY= */
3374 if (s->type == SERVICE_NOTIFY &&
3375 s->state == SERVICE_START &&
3376 strv_find(tags, "READY=1")) {
3377 log_debug_unit(u->id,
3378 "%s: got READY=1", u->id);
3380 service_enter_start_post(s);
3383 /* Interpret STATUS= */
3384 e = strv_find_prefix(tags, "STATUS=");
3390 if (!utf8_is_valid(e+7)) {
3391 log_warning_unit(u->id,
3392 "Status message in notification is not UTF-8 clean.");
3398 log_error_unit(u->id,
3399 "Failed to allocate string.");
3403 log_debug_unit(u->id,
3404 "%s: got %s", u->id, e);
3406 free(s->status_text);
3409 free(s->status_text);
3410 s->status_text = NULL;
3414 if (strv_find(tags, "WATCHDOG=1")) {
3415 log_debug_unit(u->id,
3416 "%s: got WATCHDOG=1", u->id);
3417 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3418 service_reset_watchdog(s);
3421 /* Notify clients about changed status or main pid */
3422 unit_add_to_dbus_queue(u);
3425 #ifdef HAVE_SYSV_COMPAT
3427 static int service_enumerate(Manager *m) {
3430 DIR _cleanup_closedir_ *d = NULL;
3431 char _cleanup_free_ *path = NULL, *fpath = NULL, *name = NULL;
3432 Set *runlevel_services[ELEMENTSOF(rcnd_table)];
3433 Set _cleanup_set_free_ *shutdown_services = NULL;
3440 if (m->running_as != SYSTEMD_SYSTEM)
3443 zero(runlevel_services);
3445 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3446 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3450 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3461 if (errno != ENOENT)
3462 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3467 while ((de = readdir(d))) {
3470 if (ignore_file(de->d_name))
3473 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3476 if (strlen(de->d_name) < 4)
3479 a = undecchar(de->d_name[1]);
3480 b = undecchar(de->d_name[2]);
3486 fpath = strjoin(path, "/", de->d_name, NULL);
3492 if (access(fpath, X_OK) < 0) {
3494 if (errno != ENOENT)
3495 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3501 name = sysv_translate_name(de->d_name + 3);
3507 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3509 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3513 if (de->d_name[0] == 'S') {
3515 if (rcnd_table[i].type == RUNLEVEL_UP) {
3516 SERVICE(service)->sysv_start_priority_from_rcnd =
3517 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3519 SERVICE(service)->sysv_enabled = true;
3522 r = set_ensure_allocated(&runlevel_services[i],
3523 trivial_hash_func, trivial_compare_func);
3527 r = set_put(runlevel_services[i], service);
3531 } else if (de->d_name[0] == 'K' &&
3532 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3534 r = set_ensure_allocated(&shutdown_services,
3535 trivial_hash_func, trivial_compare_func);
3539 r = set_put(shutdown_services, service);
3546 /* Now we loaded all stubs and are aware of the lowest
3547 start-up priority for all services, not let's actually load
3548 the services, this will also tell us which services are
3549 actually native now */
3550 manager_dispatch_load_queue(m);
3552 /* If this is a native service, rely on native ways to pull in
3553 * a service, don't pull it in via sysv rcN.d links. */
3554 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3555 SET_FOREACH(service, runlevel_services[i], j) {
3556 service = unit_follow_merge(service);
3558 if (service->fragment_path)
3561 r = unit_add_two_dependencies_by_name_inverse(
3562 service, UNIT_AFTER, UNIT_WANTS,
3563 rcnd_table[i].target, NULL, true);
3568 /* We honour K links only for halt/reboot. For the normal
3569 * runlevels we assume the stop jobs will be implicitly added
3570 * by the core logic. Also, we don't really distinguish here
3571 * between the runlevels 0 and 6 and just add them to the
3572 * special shutdown target. */
3573 SET_FOREACH(service, shutdown_services, j) {
3574 service = unit_follow_merge(service);
3576 if (service->fragment_path)
3579 r = unit_add_two_dependencies_by_name(
3580 service, UNIT_BEFORE, UNIT_CONFLICTS,
3581 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3590 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3591 set_free(runlevel_services[i]);
3597 static void service_bus_name_owner_change(
3600 const char *old_owner,
3601 const char *new_owner) {
3603 Service *s = SERVICE(u);
3608 assert(streq(s->bus_name, name));
3609 assert(old_owner || new_owner);
3611 if (old_owner && new_owner)
3612 log_debug_unit(u->id,
3613 "%s's D-Bus name %s changed owner from %s to %s",
3614 u->id, name, old_owner, new_owner);
3616 log_debug_unit(u->id,
3617 "%s's D-Bus name %s no longer registered by %s",
3618 u->id, name, old_owner);
3620 log_debug_unit(u->id,
3621 "%s's D-Bus name %s now registered by %s",
3622 u->id, name, new_owner);
3624 s->bus_name_good = !!new_owner;
3626 if (s->type == SERVICE_DBUS) {
3628 /* service_enter_running() will figure out what to
3630 if (s->state == SERVICE_RUNNING)
3631 service_enter_running(s, SERVICE_SUCCESS);
3632 else if (s->state == SERVICE_START && new_owner)
3633 service_enter_start_post(s);
3635 } else if (new_owner &&
3637 (s->state == SERVICE_START ||
3638 s->state == SERVICE_START_POST ||
3639 s->state == SERVICE_RUNNING ||
3640 s->state == SERVICE_RELOAD)) {
3642 /* Try to acquire PID from bus service */
3643 log_debug_unit(u->id,
3644 "Trying to acquire PID from D-Bus name...");
3646 bus_query_pid(u->manager, name);
3650 static void service_bus_query_pid_done(
3655 Service *s = SERVICE(u);
3660 log_debug_unit(u->id,
3661 "%s's D-Bus name %s is now owned by process %u",
3662 u->id, name, (unsigned) pid);
3664 if (s->main_pid <= 0 &&
3665 (s->state == SERVICE_START ||
3666 s->state == SERVICE_START_POST ||
3667 s->state == SERVICE_RUNNING ||
3668 s->state == SERVICE_RELOAD))
3669 service_set_main_pid(s, pid);
3672 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3677 /* This is called by the socket code when instantiating a new
3678 * service for a stream socket and the socket needs to be
3681 if (UNIT(s)->load_state != UNIT_LOADED)
3684 if (s->socket_fd >= 0)
3687 if (s->state != SERVICE_DEAD)
3691 s->got_socket_fd = true;
3693 unit_ref_set(&s->accept_socket, UNIT(sock));
3695 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3698 static void service_reset_failed(Unit *u) {
3699 Service *s = SERVICE(u);
3703 if (s->state == SERVICE_FAILED)
3704 service_set_state(s, SERVICE_DEAD);
3706 s->result = SERVICE_SUCCESS;
3707 s->reload_result = SERVICE_SUCCESS;
3709 RATELIMIT_RESET(s->start_limit);
3712 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3713 Service *s = SERVICE(u);
3714 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3717 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3718 [SERVICE_DEAD] = "dead",
3719 [SERVICE_START_PRE] = "start-pre",
3720 [SERVICE_START] = "start",
3721 [SERVICE_START_POST] = "start-post",
3722 [SERVICE_RUNNING] = "running",
3723 [SERVICE_EXITED] = "exited",
3724 [SERVICE_RELOAD] = "reload",
3725 [SERVICE_STOP] = "stop",
3726 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3727 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3728 [SERVICE_STOP_POST] = "stop-post",
3729 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3730 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3731 [SERVICE_FAILED] = "failed",
3732 [SERVICE_AUTO_RESTART] = "auto-restart",
3735 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3737 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3738 [SERVICE_RESTART_NO] = "no",
3739 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3740 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3741 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3742 [SERVICE_RESTART_ALWAYS] = "always"
3745 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3747 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3748 [SERVICE_SIMPLE] = "simple",
3749 [SERVICE_FORKING] = "forking",
3750 [SERVICE_ONESHOT] = "oneshot",
3751 [SERVICE_DBUS] = "dbus",
3752 [SERVICE_NOTIFY] = "notify",
3753 [SERVICE_IDLE] = "idle"
3756 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3758 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3759 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3760 [SERVICE_EXEC_START] = "ExecStart",
3761 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3762 [SERVICE_EXEC_RELOAD] = "ExecReload",
3763 [SERVICE_EXEC_STOP] = "ExecStop",
3764 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3767 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3769 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3770 [NOTIFY_NONE] = "none",
3771 [NOTIFY_MAIN] = "main",
3772 [NOTIFY_ALL] = "all"
3775 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3777 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3778 [SERVICE_SUCCESS] = "success",
3779 [SERVICE_FAILURE_RESOURCES] = "resources",
3780 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3781 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3782 [SERVICE_FAILURE_SIGNAL] = "signal",
3783 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3784 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3785 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3788 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3790 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3791 [SERVICE_START_LIMIT_NONE] = "none",
3792 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3793 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3794 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3796 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3798 const UnitVTable service_vtable = {
3799 .object_size = sizeof(Service),
3806 .exec_context_offset = offsetof(Service, exec_context),
3807 .exec_section = "Service",
3809 .init = service_init,
3810 .done = service_done,
3811 .load = service_load,
3813 .coldplug = service_coldplug,
3815 .dump = service_dump,
3817 .start = service_start,
3818 .stop = service_stop,
3819 .reload = service_reload,
3821 .can_reload = service_can_reload,
3823 .kill = service_kill,
3825 .serialize = service_serialize,
3826 .deserialize_item = service_deserialize_item,
3828 .active_state = service_active_state,
3829 .sub_state_to_string = service_sub_state_to_string,
3831 .check_gc = service_check_gc,
3832 .check_snapshot = service_check_snapshot,
3834 .sigchld_event = service_sigchld_event,
3835 .timer_event = service_timer_event,
3836 .fd_event = service_fd_event,
3838 .reset_failed = service_reset_failed,
3840 .cgroup_notify_empty = service_cgroup_notify_event,
3841 .notify_message = service_notify_message,
3843 .bus_name_owner_change = service_bus_name_owner_change,
3844 .bus_query_pid_done = service_bus_query_pid_done,
3846 .bus_interface = "org.freedesktop.systemd1.Service",
3847 .bus_message_handler = bus_service_message_handler,
3848 .bus_invalidating_properties = bus_service_invalidating_properties,
3850 #ifdef HAVE_SYSV_COMPAT
3851 .enumerate = service_enumerate,
3853 .status_message_formats = {
3854 .starting_stopping = {
3855 [0] = "Starting %s...",
3856 [1] = "Stopping %s...",
3858 .finished_start_job = {
3859 [JOB_DONE] = "Started %s.",
3860 [JOB_FAILED] = "Failed to start %s.",
3861 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3862 [JOB_TIMEOUT] = "Timed out starting %s.",
3864 .finished_stop_job = {
3865 [JOB_DONE] = "Stopped %s.",
3866 [JOB_FAILED] = "Stopped (with error) %s.",
3867 [JOB_TIMEOUT] = "Timed out stopping %s.",