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 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);
1406 if (kill(pid, 0) < 0 && errno != EPERM) {
1408 log_info_unit(UNIT(s)->id,
1409 "PID %lu read from file %s does not exist.",
1410 (unsigned long) pid, s->pid_file);
1414 if (s->main_pid_known) {
1415 if (pid == s->main_pid)
1418 log_debug_unit(UNIT(s)->id,
1419 "Main PID changing: %lu -> %lu",
1420 (unsigned long) s->main_pid, (unsigned long) pid);
1421 service_unwatch_main_pid(s);
1422 s->main_pid_known = false;
1424 log_debug_unit(UNIT(s)->id,
1425 "Main PID loaded: %lu", (unsigned long) pid);
1427 r = service_set_main_pid(s, pid);
1431 r = unit_watch_pid(UNIT(s), pid);
1433 /* FIXME: we need to do something here */
1439 static int service_search_main_pid(Service *s) {
1445 /* If we know it anyway, don't ever fallback to unreliable
1447 if (s->main_pid_known)
1450 if (!s->guess_main_pid)
1453 assert(s->main_pid <= 0);
1455 pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings);
1459 log_debug_unit(UNIT(s)->id,
1460 "Main PID guessed: %lu", (unsigned long) pid);
1461 r = service_set_main_pid(s, pid);
1465 r = unit_watch_pid(UNIT(s), pid);
1467 /* FIXME: we need to do something here */
1473 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1479 /* Notifies all our sockets when we die */
1481 if (s->socket_fd >= 0)
1484 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1485 if (u->type == UNIT_SOCKET)
1486 socket_notify_service_dead(SOCKET(u), failed_permanent);
1491 static void service_set_state(Service *s, ServiceState state) {
1492 ServiceState old_state;
1493 const UnitActiveState *table;
1496 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1498 old_state = s->state;
1501 service_unwatch_pid_file(s);
1503 if (state != SERVICE_START_PRE &&
1504 state != SERVICE_START &&
1505 state != SERVICE_START_POST &&
1506 state != SERVICE_RELOAD &&
1507 state != SERVICE_STOP &&
1508 state != SERVICE_STOP_SIGTERM &&
1509 state != SERVICE_STOP_SIGKILL &&
1510 state != SERVICE_STOP_POST &&
1511 state != SERVICE_FINAL_SIGTERM &&
1512 state != SERVICE_FINAL_SIGKILL &&
1513 state != SERVICE_AUTO_RESTART)
1514 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1516 if (state != SERVICE_START &&
1517 state != SERVICE_START_POST &&
1518 state != SERVICE_RUNNING &&
1519 state != SERVICE_RELOAD &&
1520 state != SERVICE_STOP &&
1521 state != SERVICE_STOP_SIGTERM &&
1522 state != SERVICE_STOP_SIGKILL) {
1523 service_unwatch_main_pid(s);
1524 s->main_command = NULL;
1527 if (state != SERVICE_START_PRE &&
1528 state != SERVICE_START &&
1529 state != SERVICE_START_POST &&
1530 state != SERVICE_RELOAD &&
1531 state != SERVICE_STOP &&
1532 state != SERVICE_STOP_SIGTERM &&
1533 state != SERVICE_STOP_SIGKILL &&
1534 state != SERVICE_STOP_POST &&
1535 state != SERVICE_FINAL_SIGTERM &&
1536 state != SERVICE_FINAL_SIGKILL) {
1537 service_unwatch_control_pid(s);
1538 s->control_command = NULL;
1539 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1542 if (state == SERVICE_FAILED)
1543 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1545 if (state == SERVICE_DEAD ||
1546 state == SERVICE_STOP ||
1547 state == SERVICE_STOP_SIGTERM ||
1548 state == SERVICE_STOP_SIGKILL ||
1549 state == SERVICE_STOP_POST ||
1550 state == SERVICE_FINAL_SIGTERM ||
1551 state == SERVICE_FINAL_SIGKILL ||
1552 state == SERVICE_AUTO_RESTART)
1553 service_notify_sockets_dead(s, false);
1555 if (state != SERVICE_START_PRE &&
1556 state != SERVICE_START &&
1557 state != SERVICE_START_POST &&
1558 state != SERVICE_RUNNING &&
1559 state != SERVICE_RELOAD &&
1560 state != SERVICE_STOP &&
1561 state != SERVICE_STOP_SIGTERM &&
1562 state != SERVICE_STOP_SIGKILL &&
1563 state != SERVICE_STOP_POST &&
1564 state != SERVICE_FINAL_SIGTERM &&
1565 state != SERVICE_FINAL_SIGKILL &&
1566 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1567 service_close_socket_fd(s);
1568 service_connection_unref(s);
1571 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1572 service_stop_watchdog(s);
1574 /* For the inactive states unit_notify() will trim the cgroup,
1575 * but for exit we have to do that ourselves... */
1576 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1577 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1579 if (old_state != state)
1580 log_debug_unit(UNIT(s)->id,
1581 "%s changed %s -> %s", UNIT(s)->id,
1582 service_state_to_string(old_state),
1583 service_state_to_string(state));
1585 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1586 s->reload_result = SERVICE_SUCCESS;
1589 static int service_coldplug(Unit *u) {
1590 Service *s = SERVICE(u);
1594 assert(s->state == SERVICE_DEAD);
1596 if (s->deserialized_state != s->state) {
1598 if (s->deserialized_state == SERVICE_START_PRE ||
1599 s->deserialized_state == SERVICE_START ||
1600 s->deserialized_state == SERVICE_START_POST ||
1601 s->deserialized_state == SERVICE_RELOAD ||
1602 s->deserialized_state == SERVICE_STOP ||
1603 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1604 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1605 s->deserialized_state == SERVICE_STOP_POST ||
1606 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1607 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1608 s->deserialized_state == SERVICE_AUTO_RESTART) {
1609 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1612 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1614 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1620 if ((s->deserialized_state == SERVICE_START &&
1621 (s->type == SERVICE_FORKING ||
1622 s->type == SERVICE_DBUS ||
1623 s->type == SERVICE_ONESHOT ||
1624 s->type == SERVICE_NOTIFY)) ||
1625 s->deserialized_state == SERVICE_START_POST ||
1626 s->deserialized_state == SERVICE_RUNNING ||
1627 s->deserialized_state == SERVICE_RELOAD ||
1628 s->deserialized_state == SERVICE_STOP ||
1629 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1630 s->deserialized_state == SERVICE_STOP_SIGKILL)
1631 if (s->main_pid > 0) {
1632 r = unit_watch_pid(UNIT(s), s->main_pid);
1637 if (s->deserialized_state == SERVICE_START_PRE ||
1638 s->deserialized_state == SERVICE_START ||
1639 s->deserialized_state == SERVICE_START_POST ||
1640 s->deserialized_state == SERVICE_RELOAD ||
1641 s->deserialized_state == SERVICE_STOP ||
1642 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1643 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1644 s->deserialized_state == SERVICE_STOP_POST ||
1645 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1646 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1647 if (s->control_pid > 0) {
1648 r = unit_watch_pid(UNIT(s), s->control_pid);
1653 if (s->deserialized_state == SERVICE_START_POST ||
1654 s->deserialized_state == SERVICE_RUNNING)
1655 service_handle_watchdog(s);
1657 service_set_state(s, s->deserialized_state);
1662 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1666 unsigned rn_fds = 0;
1673 if (s->socket_fd >= 0)
1676 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1681 if (u->type != UNIT_SOCKET)
1686 r = socket_collect_fds(sock, &cfds, &cn_fds);
1699 t = new(int, rn_fds+cn_fds);
1706 memcpy(t, rfds, rn_fds * sizeof(int));
1707 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1712 rn_fds = rn_fds+cn_fds;
1727 static int service_spawn(
1732 bool apply_permissions,
1734 bool apply_tty_stdin,
1735 bool set_notify_socket,
1742 int _cleanup_free_ *fdsbuf = NULL;
1743 unsigned n_fds = 0, n_env = 0;
1744 char _cleanup_strv_free_
1745 **argv = NULL, **final_env = NULL, **our_env = NULL;
1752 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1753 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1754 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1756 if (s->socket_fd >= 0) {
1757 fds = &s->socket_fd;
1760 r = service_collect_fds(s, &fdsbuf, &n_fds);
1768 if (timeout && s->timeout_start_usec) {
1769 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1770 s->timeout_start_usec, &s->timer_watch);
1774 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1776 argv = unit_full_printf_strv(UNIT(s), c->argv);
1782 our_env = new0(char*, 5);
1788 if (set_notify_socket)
1789 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1794 if (s->main_pid > 0)
1795 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1800 if (s->watchdog_usec > 0)
1801 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1806 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1807 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1812 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1826 UNIT(s)->manager->confirm_spawn,
1827 UNIT(s)->cgroup_bondings,
1828 UNIT(s)->cgroup_attributes,
1829 is_control ? "control" : NULL,
1831 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1836 r = unit_watch_pid(UNIT(s), pid);
1838 /* FIXME: we need to do something here */
1847 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1852 static int main_pid_good(Service *s) {
1855 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1858 /* If we know the pid file, then lets just check if it is
1860 if (s->main_pid_known) {
1862 /* If it's an alien child let's check if it is still
1864 if (s->main_pid_alien)
1865 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1867 /* .. otherwise assume we'll get a SIGCHLD for it,
1868 * which we really should wait for to collect exit
1869 * status and code */
1870 return s->main_pid > 0;
1873 /* We don't know the pid */
1877 static int control_pid_good(Service *s) {
1880 return s->control_pid > 0;
1883 static int cgroup_good(Service *s) {
1888 r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
1895 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1899 if (f != SERVICE_SUCCESS)
1902 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1904 if (allow_restart &&
1905 !s->forbid_restart &&
1906 (s->restart == SERVICE_RESTART_ALWAYS ||
1907 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1908 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1909 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1910 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1911 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1912 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1913 (s->result != SERVICE_FAILURE_SIGNAL ||
1914 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1917 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1921 service_set_state(s, SERVICE_AUTO_RESTART);
1924 s->forbid_restart = false;
1929 log_warning_unit(UNIT(s)->id,
1930 "%s failed to run install restart timer: %s",
1931 UNIT(s)->id, strerror(-r));
1932 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1935 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1937 static void service_enter_stop_post(Service *s, ServiceResult f) {
1941 if (f != SERVICE_SUCCESS)
1944 service_unwatch_control_pid(s);
1946 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1947 if (s->control_command) {
1948 s->control_command_id = SERVICE_EXEC_STOP_POST;
1950 r = service_spawn(s,
1954 !s->permissions_start_only,
1955 !s->root_directory_start_only,
1964 service_set_state(s, SERVICE_STOP_POST);
1966 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1971 log_warning_unit(UNIT(s)->id,
1972 "%s failed to run 'stop-post' task: %s",
1973 UNIT(s)->id, strerror(-r));
1974 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1977 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1982 if (f != SERVICE_SUCCESS)
1985 r = unit_kill_context(
1988 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
1996 if (s->timeout_stop_usec > 0) {
1997 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1998 s->timeout_stop_usec, &s->timer_watch);
2003 service_set_state(s, state);
2004 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2005 service_enter_stop_post(s, SERVICE_SUCCESS);
2007 service_enter_dead(s, SERVICE_SUCCESS, true);
2012 log_warning_unit(UNIT(s)->id,
2013 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2015 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2016 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2018 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2021 static void service_enter_stop(Service *s, ServiceResult f) {
2026 if (f != SERVICE_SUCCESS)
2029 service_unwatch_control_pid(s);
2031 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2032 if (s->control_command) {
2033 s->control_command_id = SERVICE_EXEC_STOP;
2035 r = service_spawn(s,
2039 !s->permissions_start_only,
2040 !s->root_directory_start_only,
2048 service_set_state(s, SERVICE_STOP);
2050 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2055 log_warning_unit(UNIT(s)->id,
2056 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2057 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2060 static void service_enter_running(Service *s, ServiceResult f) {
2061 int main_pid_ok, cgroup_ok;
2064 if (f != SERVICE_SUCCESS)
2067 main_pid_ok = main_pid_good(s);
2068 cgroup_ok = cgroup_good(s);
2070 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2071 (s->bus_name_good || s->type != SERVICE_DBUS))
2072 service_set_state(s, SERVICE_RUNNING);
2073 else if (s->remain_after_exit)
2074 service_set_state(s, SERVICE_EXITED);
2076 service_enter_stop(s, SERVICE_SUCCESS);
2079 static void service_enter_start_post(Service *s) {
2083 service_unwatch_control_pid(s);
2085 if (s->watchdog_usec > 0)
2086 service_reset_watchdog(s);
2088 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2089 if (s->control_command) {
2090 s->control_command_id = SERVICE_EXEC_START_POST;
2092 r = service_spawn(s,
2096 !s->permissions_start_only,
2097 !s->root_directory_start_only,
2105 service_set_state(s, SERVICE_START_POST);
2107 service_enter_running(s, SERVICE_SUCCESS);
2112 log_warning_unit(UNIT(s)->id,
2113 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2114 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2117 static void service_enter_start(Service *s) {
2124 assert(s->exec_command[SERVICE_EXEC_START]);
2125 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2127 if (s->type == SERVICE_FORKING)
2128 service_unwatch_control_pid(s);
2130 service_unwatch_main_pid(s);
2132 /* We want to ensure that nobody leaks processes from
2133 * START_PRE here, so let's go on a killing spree, People
2134 * should not spawn long running processes from START_PRE. */
2135 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2137 if (s->type == SERVICE_FORKING) {
2138 s->control_command_id = SERVICE_EXEC_START;
2139 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2141 s->main_command = NULL;
2143 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2144 s->control_command = NULL;
2146 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2149 r = service_spawn(s,
2151 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2152 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2157 s->notify_access != NOTIFY_NONE,
2163 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2164 /* For simple services we immediately start
2165 * the START_POST binaries. */
2167 service_set_main_pid(s, pid);
2168 service_enter_start_post(s);
2170 } else if (s->type == SERVICE_FORKING) {
2172 /* For forking services we wait until the start
2173 * process exited. */
2175 s->control_pid = pid;
2176 service_set_state(s, SERVICE_START);
2178 } else if (s->type == SERVICE_ONESHOT ||
2179 s->type == SERVICE_DBUS ||
2180 s->type == SERVICE_NOTIFY) {
2182 /* For oneshot services we wait until the start
2183 * process exited, too, but it is our main process. */
2185 /* For D-Bus services we know the main pid right away,
2186 * but wait for the bus name to appear on the
2187 * bus. Notify services are similar. */
2189 service_set_main_pid(s, pid);
2190 service_set_state(s, SERVICE_START);
2192 assert_not_reached("Unknown service type");
2197 log_warning_unit(UNIT(s)->id,
2198 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2199 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2202 static void service_enter_start_pre(Service *s) {
2207 service_unwatch_control_pid(s);
2209 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2210 if (s->control_command) {
2212 /* Before we start anything, let's clear up what might
2213 * be left from previous runs. */
2214 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
2215 true,true, NULL, "control");
2217 s->control_command_id = SERVICE_EXEC_START_PRE;
2219 r = service_spawn(s,
2223 !s->permissions_start_only,
2224 !s->root_directory_start_only,
2232 service_set_state(s, SERVICE_START_PRE);
2234 service_enter_start(s);
2239 log_warning_unit(UNIT(s)->id,
2240 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2241 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2244 static void service_enter_restart(Service *s) {
2249 dbus_error_init(&error);
2251 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2252 /* Don't restart things if we are going down anyway */
2253 log_info_unit(UNIT(s)->id,
2254 "Stop job pending for unit, delaying automatic restart.");
2256 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2263 /* Any units that are bound to this service must also be
2264 * restarted. We use JOB_RESTART (instead of the more obvious
2265 * JOB_START) here so that those dependency jobs will be added
2267 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2271 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2272 * it will be canceled as part of the service_stop() call that
2273 * is executed as part of JOB_RESTART. */
2275 log_debug_unit(UNIT(s)->id,
2276 "%s scheduled restart job.", UNIT(s)->id);
2280 log_warning_unit(UNIT(s)->id,
2281 "%s failed to schedule restart job: %s",
2282 UNIT(s)->id, bus_error(&error, -r));
2283 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2285 dbus_error_free(&error);
2288 static void service_enter_reload(Service *s) {
2293 service_unwatch_control_pid(s);
2295 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2296 if (s->control_command) {
2297 s->control_command_id = SERVICE_EXEC_RELOAD;
2299 r = service_spawn(s,
2303 !s->permissions_start_only,
2304 !s->root_directory_start_only,
2312 service_set_state(s, SERVICE_RELOAD);
2314 service_enter_running(s, SERVICE_SUCCESS);
2319 log_warning_unit(UNIT(s)->id,
2320 "%s failed to run 'reload' task: %s",
2321 UNIT(s)->id, strerror(-r));
2322 s->reload_result = SERVICE_FAILURE_RESOURCES;
2323 service_enter_running(s, SERVICE_SUCCESS);
2326 static void service_run_next_control(Service *s) {
2330 assert(s->control_command);
2331 assert(s->control_command->command_next);
2333 assert(s->control_command_id != SERVICE_EXEC_START);
2335 s->control_command = s->control_command->command_next;
2336 service_unwatch_control_pid(s);
2338 r = service_spawn(s,
2342 !s->permissions_start_only,
2343 !s->root_directory_start_only,
2344 s->control_command_id == SERVICE_EXEC_START_PRE ||
2345 s->control_command_id == SERVICE_EXEC_STOP_POST,
2355 log_warning_unit(UNIT(s)->id,
2356 "%s failed to run next control task: %s",
2357 UNIT(s)->id, strerror(-r));
2359 if (s->state == SERVICE_START_PRE)
2360 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2361 else if (s->state == SERVICE_STOP)
2362 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2363 else if (s->state == SERVICE_STOP_POST)
2364 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2365 else if (s->state == SERVICE_RELOAD) {
2366 s->reload_result = SERVICE_FAILURE_RESOURCES;
2367 service_enter_running(s, SERVICE_SUCCESS);
2369 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2372 static void service_run_next_main(Service *s) {
2377 assert(s->main_command);
2378 assert(s->main_command->command_next);
2379 assert(s->type == SERVICE_ONESHOT);
2381 s->main_command = s->main_command->command_next;
2382 service_unwatch_main_pid(s);
2384 r = service_spawn(s,
2391 s->notify_access != NOTIFY_NONE,
2397 service_set_main_pid(s, pid);
2402 log_warning_unit(UNIT(s)->id,
2403 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2404 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2407 static int service_start_limit_test(Service *s) {
2410 if (ratelimit_test(&s->start_limit))
2413 switch (s->start_limit_action) {
2415 case SERVICE_START_LIMIT_NONE:
2416 log_warning_unit(UNIT(s)->id,
2417 "%s start request repeated too quickly, refusing to start.",
2421 case SERVICE_START_LIMIT_REBOOT: {
2425 dbus_error_init(&error);
2427 log_warning_unit(UNIT(s)->id,
2428 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2430 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2431 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2432 true, &error, NULL);
2434 log_error_unit(UNIT(s)->id,
2435 "Failed to reboot: %s.", bus_error(&error, r));
2436 dbus_error_free(&error);
2442 case SERVICE_START_LIMIT_REBOOT_FORCE:
2443 log_warning_unit(UNIT(s)->id,
2444 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2445 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2448 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2449 log_warning_unit(UNIT(s)->id,
2450 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2452 reboot(RB_AUTOBOOT);
2456 log_error_unit(UNIT(s)->id,
2457 "start limit action=%i", s->start_limit_action);
2458 assert_not_reached("Unknown StartLimitAction.");
2464 static int service_start(Unit *u) {
2465 Service *s = SERVICE(u);
2470 /* We cannot fulfill this request right now, try again later
2472 if (s->state == SERVICE_STOP ||
2473 s->state == SERVICE_STOP_SIGTERM ||
2474 s->state == SERVICE_STOP_SIGKILL ||
2475 s->state == SERVICE_STOP_POST ||
2476 s->state == SERVICE_FINAL_SIGTERM ||
2477 s->state == SERVICE_FINAL_SIGKILL)
2480 /* Already on it! */
2481 if (s->state == SERVICE_START_PRE ||
2482 s->state == SERVICE_START ||
2483 s->state == SERVICE_START_POST)
2486 /* A service that will be restarted must be stopped first to
2487 * trigger BindsTo and/or OnFailure dependencies. If a user
2488 * does not want to wait for the holdoff time to elapse, the
2489 * service should be manually restarted, not started. We
2490 * simply return EAGAIN here, so that any start jobs stay
2491 * queued, and assume that the auto restart timer will
2492 * eventually trigger the restart. */
2493 if (s->state == SERVICE_AUTO_RESTART)
2496 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2498 /* Make sure we don't enter a busy loop of some kind. */
2499 r = service_start_limit_test(s);
2501 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2505 s->result = SERVICE_SUCCESS;
2506 s->reload_result = SERVICE_SUCCESS;
2507 s->main_pid_known = false;
2508 s->main_pid_alien = false;
2509 s->forbid_restart = false;
2511 service_enter_start_pre(s);
2515 static int service_stop(Unit *u) {
2516 Service *s = SERVICE(u);
2520 /* Don't create restart jobs from here. */
2521 s->forbid_restart = true;
2524 if (s->state == SERVICE_STOP ||
2525 s->state == SERVICE_STOP_SIGTERM ||
2526 s->state == SERVICE_STOP_SIGKILL ||
2527 s->state == SERVICE_STOP_POST ||
2528 s->state == SERVICE_FINAL_SIGTERM ||
2529 s->state == SERVICE_FINAL_SIGKILL)
2532 /* A restart will be scheduled or is in progress. */
2533 if (s->state == SERVICE_AUTO_RESTART) {
2534 service_set_state(s, SERVICE_DEAD);
2538 /* If there's already something running we go directly into
2540 if (s->state == SERVICE_START_PRE ||
2541 s->state == SERVICE_START ||
2542 s->state == SERVICE_START_POST ||
2543 s->state == SERVICE_RELOAD) {
2544 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2548 assert(s->state == SERVICE_RUNNING ||
2549 s->state == SERVICE_EXITED);
2551 service_enter_stop(s, SERVICE_SUCCESS);
2555 static int service_reload(Unit *u) {
2556 Service *s = SERVICE(u);
2560 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2562 service_enter_reload(s);
2566 static bool service_can_reload(Unit *u) {
2567 Service *s = SERVICE(u);
2571 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2574 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2575 Service *s = SERVICE(u);
2581 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2582 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2583 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2585 if (s->control_pid > 0)
2586 unit_serialize_item_format(u, f, "control-pid", "%lu",
2587 (unsigned long) s->control_pid);
2589 if (s->main_pid_known && s->main_pid > 0)
2590 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2592 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2595 unit_serialize_item(u, f, "status-text", s->status_text);
2597 /* FIXME: There's a minor uncleanliness here: if there are
2598 * multiple commands attached here, we will start from the
2599 * first one again */
2600 if (s->control_command_id >= 0)
2601 unit_serialize_item(u, f, "control-command",
2602 service_exec_command_to_string(s->control_command_id));
2604 if (s->socket_fd >= 0) {
2607 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2610 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2613 if (s->main_exec_status.pid > 0) {
2614 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2615 (unsigned long) s->main_exec_status.pid);
2616 dual_timestamp_serialize(f, "main-exec-status-start",
2617 &s->main_exec_status.start_timestamp);
2618 dual_timestamp_serialize(f, "main-exec-status-exit",
2619 &s->main_exec_status.exit_timestamp);
2621 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2622 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2623 s->main_exec_status.code);
2624 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2625 s->main_exec_status.status);
2628 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2629 dual_timestamp_serialize(f, "watchdog-timestamp",
2630 &s->watchdog_timestamp);
2635 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2636 Service *s = SERVICE(u);
2643 if (streq(key, "state")) {
2646 state = service_state_from_string(value);
2648 log_debug_unit(u->id, "Failed to parse state value %s", value);
2650 s->deserialized_state = state;
2651 } else if (streq(key, "result")) {
2654 f = service_result_from_string(value);
2656 log_debug_unit(u->id, "Failed to parse result value %s", value);
2657 else if (f != SERVICE_SUCCESS)
2660 } else if (streq(key, "reload-result")) {
2663 f = service_result_from_string(value);
2665 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2666 else if (f != SERVICE_SUCCESS)
2667 s->reload_result = f;
2669 } else if (streq(key, "control-pid")) {
2672 if (parse_pid(value, &pid) < 0)
2673 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2675 s->control_pid = pid;
2676 } else if (streq(key, "main-pid")) {
2679 if (parse_pid(value, &pid) < 0)
2680 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2682 service_set_main_pid(s, (pid_t) pid);
2683 } else if (streq(key, "main-pid-known")) {
2686 b = parse_boolean(value);
2688 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2690 s->main_pid_known = b;
2691 } else if (streq(key, "status-text")) {
2698 free(s->status_text);
2702 } else if (streq(key, "control-command")) {
2703 ServiceExecCommand id;
2705 id = service_exec_command_from_string(value);
2707 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2709 s->control_command_id = id;
2710 s->control_command = s->exec_command[id];
2712 } else if (streq(key, "socket-fd")) {
2715 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2716 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2719 if (s->socket_fd >= 0)
2720 close_nointr_nofail(s->socket_fd);
2721 s->socket_fd = fdset_remove(fds, fd);
2723 } else if (streq(key, "main-exec-status-pid")) {
2726 if (parse_pid(value, &pid) < 0)
2727 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2729 s->main_exec_status.pid = pid;
2730 } else if (streq(key, "main-exec-status-code")) {
2733 if (safe_atoi(value, &i) < 0)
2734 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2736 s->main_exec_status.code = i;
2737 } else if (streq(key, "main-exec-status-status")) {
2740 if (safe_atoi(value, &i) < 0)
2741 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2743 s->main_exec_status.status = i;
2744 } else if (streq(key, "main-exec-status-start"))
2745 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2746 else if (streq(key, "main-exec-status-exit"))
2747 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2748 else if (streq(key, "watchdog-timestamp"))
2749 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2751 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2756 static UnitActiveState service_active_state(Unit *u) {
2757 const UnitActiveState *table;
2761 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2763 return table[SERVICE(u)->state];
2766 static const char *service_sub_state_to_string(Unit *u) {
2769 return service_state_to_string(SERVICE(u)->state);
2772 static bool service_check_gc(Unit *u) {
2773 Service *s = SERVICE(u);
2777 /* Never clean up services that still have a process around,
2778 * even if the service is formally dead. */
2779 if (cgroup_good(s) > 0 ||
2780 main_pid_good(s) > 0 ||
2781 control_pid_good(s) > 0)
2784 #ifdef HAVE_SYSV_COMPAT
2792 static bool service_check_snapshot(Unit *u) {
2793 Service *s = SERVICE(u);
2797 return !s->got_socket_fd;
2800 static int service_retry_pid_file(Service *s) {
2803 assert(s->pid_file);
2804 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2806 r = service_load_pid_file(s, false);
2810 service_unwatch_pid_file(s);
2812 service_enter_running(s, SERVICE_SUCCESS);
2816 static int service_watch_pid_file(Service *s) {
2819 log_debug_unit(UNIT(s)->id,
2820 "Setting watch for %s's PID file %s",
2821 UNIT(s)->id, s->pid_file_pathspec->path);
2822 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2826 /* the pidfile might have appeared just before we set the watch */
2827 service_retry_pid_file(s);
2831 log_error_unit(UNIT(s)->id,
2832 "Failed to set a watch for %s's PID file %s: %s",
2833 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2834 service_unwatch_pid_file(s);
2838 static int service_demand_pid_file(Service *s) {
2841 assert(s->pid_file);
2842 assert(!s->pid_file_pathspec);
2844 ps = new0(PathSpec, 1);
2848 ps->path = strdup(s->pid_file);
2854 path_kill_slashes(ps->path);
2856 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2857 * keep their PID file open all the time. */
2858 ps->type = PATH_MODIFIED;
2859 ps->inotify_fd = -1;
2861 s->pid_file_pathspec = ps;
2863 return service_watch_pid_file(s);
2866 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2867 Service *s = SERVICE(u);
2871 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2872 assert(s->pid_file_pathspec);
2873 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2875 log_debug_unit(u->id, "inotify event for %s", u->id);
2877 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2880 if (service_retry_pid_file(s) == 0)
2883 if (service_watch_pid_file(s) < 0)
2888 service_unwatch_pid_file(s);
2889 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2892 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2893 Service *s = SERVICE(u);
2899 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2900 is_clean_exit_lsb(code, status, &s->success_status))
2901 f = SERVICE_SUCCESS;
2902 else if (code == CLD_EXITED)
2903 f = SERVICE_FAILURE_EXIT_CODE;
2904 else if (code == CLD_KILLED)
2905 f = SERVICE_FAILURE_SIGNAL;
2906 else if (code == CLD_DUMPED)
2907 f = SERVICE_FAILURE_CORE_DUMP;
2909 assert_not_reached("Unknown code");
2911 if (s->main_pid == pid) {
2912 /* Forking services may occasionally move to a new PID.
2913 * As long as they update the PID file before exiting the old
2914 * PID, they're fine. */
2915 if (service_load_pid_file(s, false) == 0)
2919 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2921 if (s->main_command) {
2922 /* If this is not a forking service than the
2923 * main process got started and hence we copy
2924 * the exit status so that it is recorded both
2925 * as main and as control process exit
2928 s->main_command->exec_status = s->main_exec_status;
2930 if (s->main_command->ignore)
2931 f = SERVICE_SUCCESS;
2932 } else if (s->exec_command[SERVICE_EXEC_START]) {
2934 /* If this is a forked process, then we should
2935 * ignore the return value if this was
2936 * configured for the starter process */
2938 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2939 f = SERVICE_SUCCESS;
2942 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2944 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2945 u->id, sigchld_code_to_string(code), status,
2946 strna(code == CLD_EXITED
2947 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2948 : signal_to_string(status)),
2949 "EXIT_CODE=%s", sigchld_code_to_string(code),
2950 "EXIT_STATUS=%i", status,
2953 if (f != SERVICE_SUCCESS)
2956 if (s->main_command &&
2957 s->main_command->command_next &&
2958 f == SERVICE_SUCCESS) {
2960 /* There is another command to *
2961 * execute, so let's do that. */
2963 log_debug_unit(u->id,
2964 "%s running next main command for state %s",
2965 u->id, service_state_to_string(s->state));
2966 service_run_next_main(s);
2970 /* The service exited, so the service is officially
2972 s->main_command = NULL;
2976 case SERVICE_START_POST:
2977 case SERVICE_RELOAD:
2979 /* Need to wait until the operation is
2984 if (s->type == SERVICE_ONESHOT) {
2985 /* This was our main goal, so let's go on */
2986 if (f == SERVICE_SUCCESS)
2987 service_enter_start_post(s);
2989 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2995 case SERVICE_RUNNING:
2996 service_enter_running(s, f);
2999 case SERVICE_STOP_SIGTERM:
3000 case SERVICE_STOP_SIGKILL:
3002 if (!control_pid_good(s))
3003 service_enter_stop_post(s, f);
3005 /* If there is still a control process, wait for that first */
3009 assert_not_reached("Uh, main process died at wrong time.");
3013 } else if (s->control_pid == pid) {
3017 if (s->control_command) {
3018 exec_status_exit(&s->control_command->exec_status,
3019 &s->exec_context, pid, code, status);
3021 if (s->control_command->ignore)
3022 f = SERVICE_SUCCESS;
3025 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3026 "%s: control process exited, code=%s status=%i",
3027 u->id, sigchld_code_to_string(code), status);
3029 if (f != SERVICE_SUCCESS)
3032 /* Immediately get rid of the cgroup, so that the
3033 * kernel doesn't delay the cgroup empty messages for
3034 * the service cgroup any longer than necessary */
3035 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
3036 true, true, NULL, "control");
3038 if (s->control_command &&
3039 s->control_command->command_next &&
3040 f == SERVICE_SUCCESS) {
3042 /* There is another command to *
3043 * execute, so let's do that. */
3045 log_debug_unit(u->id,
3046 "%s running next control command for state %s",
3047 u->id, service_state_to_string(s->state));
3048 service_run_next_control(s);
3051 /* No further commands for this step, so let's
3052 * figure out what to do next */
3054 s->control_command = NULL;
3055 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3057 log_debug_unit(u->id,
3058 "%s got final SIGCHLD for state %s",
3059 u->id, service_state_to_string(s->state));
3063 case SERVICE_START_PRE:
3064 if (f == SERVICE_SUCCESS)
3065 service_enter_start(s);
3067 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3071 if (s->type != SERVICE_FORKING)
3072 /* Maybe spurious event due to a reload that changed the type? */
3075 if (f != SERVICE_SUCCESS) {
3076 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3081 bool has_start_post;
3084 /* Let's try to load the pid file here if we can.
3085 * The PID file might actually be created by a START_POST
3086 * script. In that case don't worry if the loading fails. */
3088 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3089 r = service_load_pid_file(s, !has_start_post);
3090 if (!has_start_post && r < 0) {
3091 r = service_demand_pid_file(s);
3092 if (r < 0 || !cgroup_good(s))
3093 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3097 service_search_main_pid(s);
3099 service_enter_start_post(s);
3102 case SERVICE_START_POST:
3103 if (f != SERVICE_SUCCESS) {
3104 service_enter_stop(s, f);
3111 r = service_load_pid_file(s, true);
3113 r = service_demand_pid_file(s);
3114 if (r < 0 || !cgroup_good(s))
3115 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3119 service_search_main_pid(s);
3121 service_enter_running(s, SERVICE_SUCCESS);
3124 case SERVICE_RELOAD:
3125 if (f == SERVICE_SUCCESS) {
3126 service_load_pid_file(s, true);
3127 service_search_main_pid(s);
3130 s->reload_result = f;
3131 service_enter_running(s, SERVICE_SUCCESS);
3135 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3138 case SERVICE_STOP_SIGTERM:
3139 case SERVICE_STOP_SIGKILL:
3140 if (main_pid_good(s) <= 0)
3141 service_enter_stop_post(s, f);
3143 /* If there is still a service
3144 * process around, wait until
3145 * that one quit, too */
3148 case SERVICE_STOP_POST:
3149 case SERVICE_FINAL_SIGTERM:
3150 case SERVICE_FINAL_SIGKILL:
3151 service_enter_dead(s, f, true);
3155 assert_not_reached("Uh, control process died at wrong time.");
3160 /* Notify clients about changed exit status */
3161 unit_add_to_dbus_queue(u);
3164 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3165 Service *s = SERVICE(u);
3168 assert(elapsed == 1);
3170 if (w == &s->watchdog_watch) {
3171 service_handle_watchdog(s);
3175 assert(w == &s->timer_watch);
3179 case SERVICE_START_PRE:
3181 log_warning_unit(u->id,
3182 "%s operation timed out. Terminating.", u->id);
3183 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3186 case SERVICE_START_POST:
3187 log_warning_unit(u->id,
3188 "%s operation timed out. Stopping.", u->id);
3189 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3192 case SERVICE_RELOAD:
3193 log_warning_unit(u->id,
3194 "%s operation timed out. Stopping.", u->id);
3195 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3196 service_enter_running(s, SERVICE_SUCCESS);
3200 log_warning_unit(u->id,
3201 "%s stopping timed out. Terminating.", u->id);
3202 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3205 case SERVICE_STOP_SIGTERM:
3206 if (s->kill_context.send_sigkill) {
3207 log_warning_unit(u->id,
3208 "%s stopping timed out. Killing.", u->id);
3209 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3211 log_warning_unit(u->id,
3212 "%s stopping timed out. Skipping SIGKILL.", u->id);
3213 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3218 case SERVICE_STOP_SIGKILL:
3219 /* Uh, we sent a SIGKILL and it is still not gone?
3220 * Must be something we cannot kill, so let's just be
3221 * weirded out and continue */
3223 log_warning_unit(u->id,
3224 "%s still around after SIGKILL. Ignoring.", u->id);
3225 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3228 case SERVICE_STOP_POST:
3229 log_warning_unit(u->id,
3230 "%s stopping timed out (2). Terminating.", u->id);
3231 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3234 case SERVICE_FINAL_SIGTERM:
3235 if (s->kill_context.send_sigkill) {
3236 log_warning_unit(u->id,
3237 "%s stopping timed out (2). Killing.", u->id);
3238 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3240 log_warning_unit(u->id,
3241 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3243 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3248 case SERVICE_FINAL_SIGKILL:
3249 log_warning_unit(u->id,
3250 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3251 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3254 case SERVICE_AUTO_RESTART:
3255 log_info_unit(u->id,
3256 "%s holdoff time over, scheduling restart.", u->id);
3257 service_enter_restart(s);
3261 assert_not_reached("Timeout at wrong time.");
3265 static void service_cgroup_notify_event(Unit *u) {
3266 Service *s = SERVICE(u);
3270 log_debug_unit(u->id,
3271 "%s: cgroup is empty", u->id);
3275 /* Waiting for SIGCHLD is usually more interesting,
3276 * because it includes return codes/signals. Which is
3277 * why we ignore the cgroup events for most cases,
3278 * except when we don't know pid which to expect the
3282 case SERVICE_START_POST:
3283 /* If we were hoping for the daemon to write its PID file,
3284 * we can give up now. */
3285 if (s->pid_file_pathspec) {
3286 log_warning_unit(u->id,
3287 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3288 service_unwatch_pid_file(s);
3289 if (s->state == SERVICE_START)
3290 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3292 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3296 case SERVICE_RUNNING:
3297 /* service_enter_running() will figure out what to do */
3298 service_enter_running(s, SERVICE_SUCCESS);
3301 case SERVICE_STOP_SIGTERM:
3302 case SERVICE_STOP_SIGKILL:
3304 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3305 service_enter_stop_post(s, SERVICE_SUCCESS);
3309 case SERVICE_FINAL_SIGTERM:
3310 case SERVICE_FINAL_SIGKILL:
3311 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3312 service_enter_dead(s, SERVICE_SUCCESS, true);
3321 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3322 Service *s = SERVICE(u);
3327 if (s->notify_access == NOTIFY_NONE) {
3328 log_warning_unit(u->id,
3329 "%s: Got notification message from PID %lu, but reception is disabled.",
3330 u->id, (unsigned long) pid);
3334 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3335 log_warning_unit(u->id,
3336 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3337 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3341 log_debug_unit(u->id,
3342 "%s: Got message", u->id);
3344 /* Interpret MAINPID= */
3345 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3346 (s->state == SERVICE_START ||
3347 s->state == SERVICE_START_POST ||
3348 s->state == SERVICE_RUNNING ||
3349 s->state == SERVICE_RELOAD)) {
3351 if (parse_pid(e + 8, &pid) < 0)
3352 log_warning_unit(u->id,
3353 "Failed to parse notification message %s", e);
3355 log_debug_unit(u->id,
3356 "%s: got %s", u->id, e);
3357 service_set_main_pid(s, pid);
3361 /* Interpret READY= */
3362 if (s->type == SERVICE_NOTIFY &&
3363 s->state == SERVICE_START &&
3364 strv_find(tags, "READY=1")) {
3365 log_debug_unit(u->id,
3366 "%s: got READY=1", u->id);
3368 service_enter_start_post(s);
3371 /* Interpret STATUS= */
3372 e = strv_find_prefix(tags, "STATUS=");
3378 if (!utf8_is_valid(e+7)) {
3379 log_warning_unit(u->id,
3380 "Status message in notification is not UTF-8 clean.");
3386 log_error_unit(u->id,
3387 "Failed to allocate string.");
3391 log_debug_unit(u->id,
3392 "%s: got %s", u->id, e);
3394 free(s->status_text);
3397 free(s->status_text);
3398 s->status_text = NULL;
3402 if (strv_find(tags, "WATCHDOG=1")) {
3403 log_debug_unit(u->id,
3404 "%s: got WATCHDOG=1", u->id);
3405 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3406 service_reset_watchdog(s);
3409 /* Notify clients about changed status or main pid */
3410 unit_add_to_dbus_queue(u);
3413 #ifdef HAVE_SYSV_COMPAT
3415 static int service_enumerate(Manager *m) {
3418 DIR _cleanup_closedir_ *d = NULL;
3419 char _cleanup_free_ *path = NULL, *fpath = NULL, *name = NULL;
3420 Set *runlevel_services[ELEMENTSOF(rcnd_table)];
3421 Set _cleanup_set_free_ *shutdown_services = NULL;
3428 if (m->running_as != SYSTEMD_SYSTEM)
3431 zero(runlevel_services);
3433 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3434 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3438 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3449 if (errno != ENOENT)
3450 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3455 while ((de = readdir(d))) {
3458 if (ignore_file(de->d_name))
3461 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3464 if (strlen(de->d_name) < 4)
3467 a = undecchar(de->d_name[1]);
3468 b = undecchar(de->d_name[2]);
3474 fpath = strjoin(path, "/", de->d_name, NULL);
3480 if (access(fpath, X_OK) < 0) {
3482 if (errno != ENOENT)
3483 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3489 name = sysv_translate_name(de->d_name + 3);
3495 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3497 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3501 if (de->d_name[0] == 'S') {
3503 if (rcnd_table[i].type == RUNLEVEL_UP) {
3504 SERVICE(service)->sysv_start_priority_from_rcnd =
3505 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3507 SERVICE(service)->sysv_enabled = true;
3510 r = set_ensure_allocated(&runlevel_services[i],
3511 trivial_hash_func, trivial_compare_func);
3515 r = set_put(runlevel_services[i], service);
3519 } else if (de->d_name[0] == 'K' &&
3520 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3522 r = set_ensure_allocated(&shutdown_services,
3523 trivial_hash_func, trivial_compare_func);
3527 r = set_put(shutdown_services, service);
3534 /* Now we loaded all stubs and are aware of the lowest
3535 start-up priority for all services, not let's actually load
3536 the services, this will also tell us which services are
3537 actually native now */
3538 manager_dispatch_load_queue(m);
3540 /* If this is a native service, rely on native ways to pull in
3541 * a service, don't pull it in via sysv rcN.d links. */
3542 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3543 SET_FOREACH(service, runlevel_services[i], j) {
3544 service = unit_follow_merge(service);
3546 if (service->fragment_path)
3549 r = unit_add_two_dependencies_by_name_inverse(
3550 service, UNIT_AFTER, UNIT_WANTS,
3551 rcnd_table[i].target, NULL, true);
3556 /* We honour K links only for halt/reboot. For the normal
3557 * runlevels we assume the stop jobs will be implicitly added
3558 * by the core logic. Also, we don't really distinguish here
3559 * between the runlevels 0 and 6 and just add them to the
3560 * special shutdown target. */
3561 SET_FOREACH(service, shutdown_services, j) {
3562 service = unit_follow_merge(service);
3564 if (service->fragment_path)
3567 r = unit_add_two_dependencies_by_name(
3568 service, UNIT_BEFORE, UNIT_CONFLICTS,
3569 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3578 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3579 set_free(runlevel_services[i]);
3585 static void service_bus_name_owner_change(
3588 const char *old_owner,
3589 const char *new_owner) {
3591 Service *s = SERVICE(u);
3596 assert(streq(s->bus_name, name));
3597 assert(old_owner || new_owner);
3599 if (old_owner && new_owner)
3600 log_debug_unit(u->id,
3601 "%s's D-Bus name %s changed owner from %s to %s",
3602 u->id, name, old_owner, new_owner);
3604 log_debug_unit(u->id,
3605 "%s's D-Bus name %s no longer registered by %s",
3606 u->id, name, old_owner);
3608 log_debug_unit(u->id,
3609 "%s's D-Bus name %s now registered by %s",
3610 u->id, name, new_owner);
3612 s->bus_name_good = !!new_owner;
3614 if (s->type == SERVICE_DBUS) {
3616 /* service_enter_running() will figure out what to
3618 if (s->state == SERVICE_RUNNING)
3619 service_enter_running(s, SERVICE_SUCCESS);
3620 else if (s->state == SERVICE_START && new_owner)
3621 service_enter_start_post(s);
3623 } else if (new_owner &&
3625 (s->state == SERVICE_START ||
3626 s->state == SERVICE_START_POST ||
3627 s->state == SERVICE_RUNNING ||
3628 s->state == SERVICE_RELOAD)) {
3630 /* Try to acquire PID from bus service */
3631 log_debug_unit(u->id,
3632 "Trying to acquire PID from D-Bus name...");
3634 bus_query_pid(u->manager, name);
3638 static void service_bus_query_pid_done(
3643 Service *s = SERVICE(u);
3648 log_debug_unit(u->id,
3649 "%s's D-Bus name %s is now owned by process %u",
3650 u->id, name, (unsigned) pid);
3652 if (s->main_pid <= 0 &&
3653 (s->state == SERVICE_START ||
3654 s->state == SERVICE_START_POST ||
3655 s->state == SERVICE_RUNNING ||
3656 s->state == SERVICE_RELOAD))
3657 service_set_main_pid(s, pid);
3660 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3665 /* This is called by the socket code when instantiating a new
3666 * service for a stream socket and the socket needs to be
3669 if (UNIT(s)->load_state != UNIT_LOADED)
3672 if (s->socket_fd >= 0)
3675 if (s->state != SERVICE_DEAD)
3679 s->got_socket_fd = true;
3681 unit_ref_set(&s->accept_socket, UNIT(sock));
3683 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3686 static void service_reset_failed(Unit *u) {
3687 Service *s = SERVICE(u);
3691 if (s->state == SERVICE_FAILED)
3692 service_set_state(s, SERVICE_DEAD);
3694 s->result = SERVICE_SUCCESS;
3695 s->reload_result = SERVICE_SUCCESS;
3697 RATELIMIT_RESET(s->start_limit);
3700 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3701 Service *s = SERVICE(u);
3703 Set *pid_set = NULL;
3707 if (s->main_pid <= 0 && who == KILL_MAIN) {
3708 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3712 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3713 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3717 if (who == KILL_CONTROL || who == KILL_ALL)
3718 if (s->control_pid > 0)
3719 if (kill(s->control_pid, signo) < 0)
3722 if (who == KILL_MAIN || who == KILL_ALL)
3723 if (s->main_pid > 0)
3724 if (kill(s->main_pid, signo) < 0)
3727 if (who == KILL_ALL) {
3730 pid_set = set_new(trivial_hash_func, trivial_compare_func);
3734 /* Exclude the control/main pid from being killed via the cgroup */
3735 if (s->control_pid > 0) {
3736 q = set_put(pid_set, LONG_TO_PTR(s->control_pid));
3743 if (s->main_pid > 0) {
3744 q = set_put(pid_set, LONG_TO_PTR(s->main_pid));
3751 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3752 if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3763 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3764 [SERVICE_DEAD] = "dead",
3765 [SERVICE_START_PRE] = "start-pre",
3766 [SERVICE_START] = "start",
3767 [SERVICE_START_POST] = "start-post",
3768 [SERVICE_RUNNING] = "running",
3769 [SERVICE_EXITED] = "exited",
3770 [SERVICE_RELOAD] = "reload",
3771 [SERVICE_STOP] = "stop",
3772 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3773 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3774 [SERVICE_STOP_POST] = "stop-post",
3775 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3776 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3777 [SERVICE_FAILED] = "failed",
3778 [SERVICE_AUTO_RESTART] = "auto-restart",
3781 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3783 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3784 [SERVICE_RESTART_NO] = "no",
3785 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3786 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3787 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3788 [SERVICE_RESTART_ALWAYS] = "always"
3791 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3793 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3794 [SERVICE_SIMPLE] = "simple",
3795 [SERVICE_FORKING] = "forking",
3796 [SERVICE_ONESHOT] = "oneshot",
3797 [SERVICE_DBUS] = "dbus",
3798 [SERVICE_NOTIFY] = "notify",
3799 [SERVICE_IDLE] = "idle"
3802 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3804 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3805 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3806 [SERVICE_EXEC_START] = "ExecStart",
3807 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3808 [SERVICE_EXEC_RELOAD] = "ExecReload",
3809 [SERVICE_EXEC_STOP] = "ExecStop",
3810 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3813 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3815 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3816 [NOTIFY_NONE] = "none",
3817 [NOTIFY_MAIN] = "main",
3818 [NOTIFY_ALL] = "all"
3821 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3823 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3824 [SERVICE_SUCCESS] = "success",
3825 [SERVICE_FAILURE_RESOURCES] = "resources",
3826 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3827 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3828 [SERVICE_FAILURE_SIGNAL] = "signal",
3829 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3830 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3831 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3834 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3836 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3837 [SERVICE_START_LIMIT_NONE] = "none",
3838 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3839 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3840 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3842 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3844 const UnitVTable service_vtable = {
3845 .object_size = sizeof(Service),
3852 .exec_context_offset = offsetof(Service, exec_context),
3853 .exec_section = "Service",
3855 .init = service_init,
3856 .done = service_done,
3857 .load = service_load,
3859 .coldplug = service_coldplug,
3861 .dump = service_dump,
3863 .start = service_start,
3864 .stop = service_stop,
3865 .reload = service_reload,
3867 .can_reload = service_can_reload,
3869 .kill = service_kill,
3871 .serialize = service_serialize,
3872 .deserialize_item = service_deserialize_item,
3874 .active_state = service_active_state,
3875 .sub_state_to_string = service_sub_state_to_string,
3877 .check_gc = service_check_gc,
3878 .check_snapshot = service_check_snapshot,
3880 .sigchld_event = service_sigchld_event,
3881 .timer_event = service_timer_event,
3882 .fd_event = service_fd_event,
3884 .reset_failed = service_reset_failed,
3886 .cgroup_notify_empty = service_cgroup_notify_event,
3887 .notify_message = service_notify_message,
3889 .bus_name_owner_change = service_bus_name_owner_change,
3890 .bus_query_pid_done = service_bus_query_pid_done,
3892 .bus_interface = "org.freedesktop.systemd1.Service",
3893 .bus_message_handler = bus_service_message_handler,
3894 .bus_invalidating_properties = bus_service_invalidating_properties,
3896 #ifdef HAVE_SYSV_COMPAT
3897 .enumerate = service_enumerate,
3899 .status_message_formats = {
3900 .starting_stopping = {
3901 [0] = "Starting %s...",
3902 [1] = "Stopping %s...",
3904 .finished_start_job = {
3905 [JOB_DONE] = "Started %s.",
3906 [JOB_FAILED] = "Failed to start %s.",
3907 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3908 [JOB_TIMEOUT] = "Timed out starting %s.",
3910 .finished_stop_job = {
3911 [JOB_DONE] = "Stopped %s.",
3912 [JOB_FAILED] = "Stopped (with error) %s.",
3913 [JOB_TIMEOUT] = "Timed out stopping %s.",