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, manager_is_reloading_or_reexecuting(u->manager));
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");
335 /* Normal init script name */
336 strcpy(stpcpy(r, name), ".service");
341 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
343 /* We silently ignore the $ prefix here. According to the LSB
344 * spec it simply indicates whether something is a
345 * standardized name or a distribution-specific one. Since we
346 * just follow what already exists and do not introduce new
347 * uses or names we don't care who introduced a new name. */
349 static const char * const table[] = {
350 /* LSB defined facilities */
352 "network", SPECIAL_NETWORK_TARGET,
353 "named", SPECIAL_NSS_LOOKUP_TARGET,
354 "portmap", SPECIAL_RPCBIND_TARGET,
355 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
357 "time", SPECIAL_TIME_SYNC_TARGET,
367 n = *name == '$' ? name + 1 : name;
369 for (i = 0; i < ELEMENTSOF(table); i += 2) {
371 if (!streq(table[i], n))
377 r = strdup(table[i+1]);
384 /* If we don't know this name, fallback heuristics to figure
385 * out whether something is a target or a service alias. */
388 if (!unit_prefix_is_valid(n))
391 /* Facilities starting with $ are most likely targets */
392 r = unit_name_build(n, NULL, ".target");
393 } else if (filename && streq(name, filename))
394 /* Names equaling the file name of the services are redundant */
397 /* Everything else we assume to be normal service names */
398 r = sysv_translate_name(n);
409 static int sysv_fix_order(Service *s) {
415 if (s->sysv_start_priority < 0)
418 /* For each pair of services where at least one lacks a LSB
419 * header, we use the start priority value to order things. */
421 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
424 bool special_s, special_t;
431 if (UNIT(t)->load_state != UNIT_LOADED)
434 if (t->sysv_start_priority < 0)
437 /* If both units have modern headers we don't care
438 * about the priorities */
439 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
440 (UNIT(t)->fragment_path || t->sysv_has_lsb))
443 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
444 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
446 if (special_t && !special_s)
448 else if (special_s && !special_t)
450 else if (t->sysv_start_priority < s->sysv_start_priority)
452 else if (t->sysv_start_priority > s->sysv_start_priority)
457 /* FIXME: Maybe we should compare the name here lexicographically? */
459 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
466 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
469 if (!(c = new0(ExecCommand, 1)))
472 if (!(c->path = strdup(path))) {
477 if (!(c->argv = strv_new(path, arg1, NULL))) {
486 static int sysv_exec_commands(Service *s, const bool supports_reload) {
491 assert(UNIT(s)->source_path);
493 c = exec_command_new(UNIT(s)->source_path, "start");
496 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
498 c = exec_command_new(UNIT(s)->source_path, "stop");
501 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
503 if (supports_reload) {
504 c = exec_command_new(UNIT(s)->source_path, "reload");
507 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
513 static bool usage_contains_reload(const char *line) {
514 return (strcasestr(line, "{reload|") ||
515 strcasestr(line, "{reload}") ||
516 strcasestr(line, "{reload\"") ||
517 strcasestr(line, "|reload|") ||
518 strcasestr(line, "|reload}") ||
519 strcasestr(line, "|reload\""));
522 static int service_load_sysv_path(Service *s, const char *path) {
534 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
536 bool supports_reload = false;
543 f = fopen(path, "re");
545 r = errno == ENOENT ? 0 : -errno;
549 if (fstat(fileno(f), &st) < 0) {
554 free(u->source_path);
555 u->source_path = strdup(path);
556 if (!u->source_path) {
560 u->source_mtime = timespec_load(&st.st_mtim);
562 if (null_or_empty(&st)) {
563 u->load_state = UNIT_MASKED;
571 char l[LINE_MAX], *t;
573 if (!fgets(l, sizeof(l), f)) {
578 log_error_unit(u->id,
579 "Failed to read configuration file '%s': %s",
588 /* Try to figure out whether this init script supports
589 * the reload operation. This heuristic looks for
590 * "Usage" lines which include the reload option. */
591 if ( state == USAGE_CONTINUATION ||
592 (state == NORMAL && strcasestr(t, "usage"))) {
593 if (usage_contains_reload(t)) {
594 supports_reload = true;
596 } else if (t[strlen(t)-1] == '\\')
597 state = USAGE_CONTINUATION;
605 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
607 s->sysv_has_lsb = true;
611 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
617 t += strspn(t, WHITESPACE);
619 if (state == NORMAL) {
621 /* Try to parse Red Hat style chkconfig headers */
623 if (startswith_no_case(t, "chkconfig:")) {
625 char runlevels[16], *k;
629 if (sscanf(t+10, "%15s %i %*i",
631 &start_priority) != 2) {
633 log_warning_unit(u->id,
634 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
639 /* A start priority gathered from the
640 * symlink farms is preferred over the
641 * data from the LSB header. */
642 if (start_priority < 0 || start_priority > 99)
643 log_warning_unit(u->id,
644 "[%s:%u] Start priority out of range. Ignoring.",
647 s->sysv_start_priority = start_priority;
649 char_array_0(runlevels);
650 k = delete_chars(runlevels, WHITESPACE "-");
655 if (!(d = strdup(k))) {
660 free(s->sysv_runlevels);
661 s->sysv_runlevels = d;
664 } else if (startswith_no_case(t, "description:")) {
666 size_t k = strlen(t);
670 if (t[k-1] == '\\') {
675 if ((j = strstrip(t+12)) && *j) {
676 if (!(d = strdup(j))) {
683 free(chkconfig_description);
684 chkconfig_description = d;
686 } else if (startswith_no_case(t, "pidfile:")) {
693 if (!path_is_absolute(fn)) {
694 log_warning_unit(u->id,
695 "[%s:%u] PID file not absolute. Ignoring.",
700 if (!(fn = strdup(fn))) {
709 } else if (state == DESCRIPTION) {
711 /* Try to parse Red Hat style description
714 size_t k = strlen(t);
722 if ((j = strstrip(t)) && *j) {
725 if (chkconfig_description)
726 d = strjoin(chkconfig_description, " ", j, NULL);
735 free(chkconfig_description);
736 chkconfig_description = d;
739 } else if (state == LSB || state == LSB_DESCRIPTION) {
741 if (startswith_no_case(t, "Provides:")) {
747 FOREACH_WORD_QUOTED(w, z, t+9, i) {
750 if (!(n = strndup(w, z))) {
755 r = sysv_translate_facility(n, path_get_file_name(path), &m);
764 if (unit_name_to_type(m) == UNIT_SERVICE)
765 r = unit_merge_by_name(u, m);
772 * indication that the
774 * now available. This
777 * targets do NOT pull
780 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
783 log_error_unit(u->id,
784 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
785 path, line, m, strerror(-r));
790 } else if (startswith_no_case(t, "Required-Start:") ||
791 startswith_no_case(t, "Should-Start:") ||
792 startswith_no_case(t, "X-Start-Before:") ||
793 startswith_no_case(t, "X-Start-After:")) {
799 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
802 if (!(n = strndup(w, z))) {
807 r = sysv_translate_facility(n, path_get_file_name(path), &m);
809 log_error_unit(u->id,
810 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
811 path, line, n, strerror(-r));
821 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
824 log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
825 path, line, m, strerror(-r));
829 } else if (startswith_no_case(t, "Default-Start:")) {
834 k = delete_chars(t+14, WHITESPACE "-");
837 if (!(d = strdup(k))) {
842 free(s->sysv_runlevels);
843 s->sysv_runlevels = d;
846 } else if (startswith_no_case(t, "Description:")) {
849 state = LSB_DESCRIPTION;
851 if ((j = strstrip(t+12)) && *j) {
852 if (!(d = strdup(j))) {
859 free(long_description);
860 long_description = d;
862 } else if (startswith_no_case(t, "Short-Description:")) {
867 if ((j = strstrip(t+18)) && *j) {
868 if (!(d = strdup(j))) {
875 free(short_description);
876 short_description = d;
878 } else if (state == LSB_DESCRIPTION) {
880 if (startswith(l, "#\t") || startswith(l, "# ")) {
883 if ((j = strstrip(t)) && *j) {
886 if (long_description)
887 d = strjoin(long_description, " ", t, NULL);
896 free(long_description);
897 long_description = d;
906 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
909 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
910 /* If there a runlevels configured for this service
911 * but none of the standard ones, then we assume this
912 * is some special kind of service (which might be
913 * needed for early boot) and don't create any links
916 UNIT(s)->default_dependencies = false;
918 /* Don't timeout special services during boot (like fsck) */
919 s->timeout_start_usec = 0;
920 s->timeout_stop_usec = 0;
922 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
923 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
926 /* Special setting for all SysV services */
927 s->type = SERVICE_FORKING;
928 s->remain_after_exit = !s->pid_file;
929 s->guess_main_pid = false;
930 s->restart = SERVICE_RESTART_NO;
931 s->exec_context.ignore_sigpipe = false;
932 s->kill_context.kill_mode = KILL_PROCESS;
934 /* We use the long description only if
935 * no short description is set. */
937 if (short_description)
938 description = short_description;
939 else if (chkconfig_description)
940 description = chkconfig_description;
941 else if (long_description)
942 description = long_description;
949 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
957 /* The priority that has been set in /etc/rcN.d/ hierarchies
958 * takes precedence over what is stored as default in the LSB
960 if (s->sysv_start_priority_from_rcnd >= 0)
961 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
963 u->load_state = UNIT_LOADED;
971 free(short_description);
972 free(long_description);
973 free(chkconfig_description);
978 static int service_load_sysv_name(Service *s, const char *name) {
984 /* For SysV services we strip the *.sh suffixes. */
985 if (endswith(name, ".sh.service"))
988 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
992 path = strjoin(*p, "/", name, NULL);
996 assert(endswith(path, ".service"));
997 path[strlen(path)-8] = 0;
999 r = service_load_sysv_path(s, path);
1001 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1002 /* Try *.sh source'able init scripts */
1003 strcat(path, ".sh");
1004 r = service_load_sysv_path(s, path);
1011 if (UNIT(s)->load_state != UNIT_STUB)
1018 static int service_load_sysv(Service *s) {
1025 /* Load service data from SysV init scripts, preferably with
1026 * LSB headers ... */
1028 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1031 if ((t = UNIT(s)->id))
1032 if ((r = service_load_sysv_name(s, t)) < 0)
1035 if (UNIT(s)->load_state == UNIT_STUB)
1036 SET_FOREACH(t, UNIT(s)->names, i) {
1037 if (t == UNIT(s)->id)
1040 if ((r = service_load_sysv_name(s, t)) < 0)
1043 if (UNIT(s)->load_state != UNIT_STUB)
1051 static int fsck_fix_order(Service *s) {
1057 if (s->fsck_passno <= 0)
1060 /* For each pair of services where both have an fsck priority
1061 * we order things based on it. */
1063 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1072 if (UNIT(t)->load_state != UNIT_LOADED)
1075 if (t->fsck_passno <= 0)
1078 if (t->fsck_passno < s->fsck_passno)
1080 else if (t->fsck_passno > s->fsck_passno)
1085 r = unit_add_dependency(UNIT(s), d, UNIT(t), true);
1093 static int service_verify(Service *s) {
1096 if (UNIT(s)->load_state != UNIT_LOADED)
1099 if (!s->exec_command[SERVICE_EXEC_START]) {
1100 log_error_unit(UNIT(s)->id,
1101 "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1105 if (s->type != SERVICE_ONESHOT &&
1106 s->exec_command[SERVICE_EXEC_START]->command_next) {
1107 log_error_unit(UNIT(s)->id,
1108 "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1112 if (s->type == SERVICE_DBUS && !s->bus_name) {
1113 log_error_unit(UNIT(s)->id,
1114 "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1118 if (s->bus_name && s->type != SERVICE_DBUS)
1119 log_warning_unit(UNIT(s)->id,
1120 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1122 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1123 log_error_unit(UNIT(s)->id,
1124 "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1131 static int service_add_default_dependencies(Service *s) {
1136 /* Add a number of automatic dependencies useful for the
1137 * majority of services. */
1139 /* First, pull in base system */
1140 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
1141 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1142 SPECIAL_BASIC_TARGET, NULL, true);
1146 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
1147 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1148 SPECIAL_SOCKETS_TARGET, NULL, true);
1152 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1153 SPECIAL_TIMERS_TARGET, NULL, true);
1157 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1158 SPECIAL_PATHS_TARGET, NULL, true);
1163 /* Second, activate normal shutdown */
1164 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1165 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1169 static void service_fix_output(Service *s) {
1172 /* If nothing has been explicitly configured, patch default
1173 * output in. If input is socket/tty we avoid this however,
1174 * since in that case we want output to default to the same
1175 * place as we read input from. */
1177 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1178 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1179 s->exec_context.std_input == EXEC_INPUT_NULL)
1180 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1182 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1183 s->exec_context.std_input == EXEC_INPUT_NULL)
1184 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1187 static int service_load(Unit *u) {
1189 Service *s = SERVICE(u);
1193 /* Load a .service file */
1194 if ((r = unit_load_fragment(u)) < 0)
1197 #ifdef HAVE_SYSV_COMPAT
1198 /* Load a classic init script as a fallback, if we couldn't find anything */
1199 if (u->load_state == UNIT_STUB)
1200 if ((r = service_load_sysv(s)) < 0)
1204 /* Still nothing found? Then let's give up */
1205 if (u->load_state == UNIT_STUB)
1208 /* We were able to load something, then let's add in the
1209 * dropin directories. */
1210 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1213 /* This is a new unit? Then let's add in some extras */
1214 if (u->load_state == UNIT_LOADED) {
1215 if (s->type == _SERVICE_TYPE_INVALID)
1216 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1218 /* Oneshot services have disabled start timeout by default */
1219 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1220 s->timeout_start_usec = 0;
1222 service_fix_output(s);
1224 r = unit_add_exec_dependencies(u, &s->exec_context);
1228 r = unit_add_default_cgroups(u);
1232 #ifdef HAVE_SYSV_COMPAT
1233 r = sysv_fix_order(s);
1238 r = fsck_fix_order(s);
1243 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1246 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1247 s->notify_access = NOTIFY_MAIN;
1249 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1250 s->notify_access = NOTIFY_MAIN;
1252 if (s->type == SERVICE_DBUS || s->bus_name) {
1253 r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
1254 SPECIAL_DBUS_SOCKET, NULL, true);
1259 if (UNIT(s)->default_dependencies) {
1260 r = service_add_default_dependencies(s);
1265 r = unit_exec_context_defaults(u, &s->exec_context);
1270 return service_verify(s);
1273 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1275 ServiceExecCommand c;
1276 Service *s = SERVICE(u);
1277 const char *prefix2;
1278 char _cleanup_free_ *p2 = NULL;
1282 p2 = strappend(prefix, "\t");
1283 prefix2 = p2 ? p2 : prefix;
1286 "%sService State: %s\n"
1288 "%sReload Result: %s\n"
1289 "%sPermissionsStartOnly: %s\n"
1290 "%sRootDirectoryStartOnly: %s\n"
1291 "%sRemainAfterExit: %s\n"
1292 "%sGuessMainPID: %s\n"
1295 "%sNotifyAccess: %s\n",
1296 prefix, service_state_to_string(s->state),
1297 prefix, service_result_to_string(s->result),
1298 prefix, service_result_to_string(s->reload_result),
1299 prefix, yes_no(s->permissions_start_only),
1300 prefix, yes_no(s->root_directory_start_only),
1301 prefix, yes_no(s->remain_after_exit),
1302 prefix, yes_no(s->guess_main_pid),
1303 prefix, service_type_to_string(s->type),
1304 prefix, service_restart_to_string(s->restart),
1305 prefix, notify_access_to_string(s->notify_access));
1307 if (s->control_pid > 0)
1309 "%sControl PID: %lu\n",
1310 prefix, (unsigned long) s->control_pid);
1312 if (s->main_pid > 0)
1315 "%sMain PID Known: %s\n"
1316 "%sMain PID Alien: %s\n",
1317 prefix, (unsigned long) s->main_pid,
1318 prefix, yes_no(s->main_pid_known),
1319 prefix, yes_no(s->main_pid_alien));
1324 prefix, s->pid_file);
1329 "%sBus Name Good: %s\n",
1330 prefix, s->bus_name,
1331 prefix, yes_no(s->bus_name_good));
1333 kill_context_dump(&s->kill_context, f, prefix);
1334 exec_context_dump(&s->exec_context, f, prefix);
1336 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1338 if (!s->exec_command[c])
1341 fprintf(f, "%s-> %s:\n",
1342 prefix, service_exec_command_to_string(c));
1344 exec_command_dump_list(s->exec_command[c], f, prefix2);
1347 #ifdef HAVE_SYSV_COMPAT
1350 "%sSysV Init Script has LSB Header: %s\n"
1351 "%sSysVEnabled: %s\n",
1352 prefix, yes_no(s->sysv_has_lsb),
1353 prefix, yes_no(s->sysv_enabled));
1355 if (s->sysv_start_priority >= 0)
1357 "%sSysVStartPriority: %i\n",
1358 prefix, s->sysv_start_priority);
1360 if (s->sysv_runlevels)
1361 fprintf(f, "%sSysVRunLevels: %s\n",
1362 prefix, s->sysv_runlevels);
1365 if (s->fsck_passno > 0)
1367 "%sFsckPassNo: %i\n",
1368 prefix, s->fsck_passno);
1371 fprintf(f, "%sStatus Text: %s\n",
1372 prefix, s->status_text);
1375 static int service_load_pid_file(Service *s, bool may_warn) {
1376 char _cleanup_free_ *k = NULL;
1385 r = read_one_line_file(s->pid_file, &k);
1388 log_info_unit(UNIT(s)->id,
1389 "PID file %s not readable (yet?) after %s.",
1390 s->pid_file, service_state_to_string(s->state));
1394 r = parse_pid(k, &pid);
1397 log_info_unit(UNIT(s)->id,
1398 "Failed to read PID from file %s: %s",
1399 s->pid_file, strerror(-r));
1403 if (kill(pid, 0) < 0 && errno != EPERM) {
1405 log_info_unit(UNIT(s)->id,
1406 "PID %lu read from file %s does not exist.",
1407 (unsigned long) pid, s->pid_file);
1411 if (s->main_pid_known) {
1412 if (pid == s->main_pid)
1415 log_debug_unit(UNIT(s)->id,
1416 "Main PID changing: %lu -> %lu",
1417 (unsigned long) s->main_pid, (unsigned long) pid);
1418 service_unwatch_main_pid(s);
1419 s->main_pid_known = false;
1421 log_debug_unit(UNIT(s)->id,
1422 "Main PID loaded: %lu", (unsigned long) pid);
1424 r = service_set_main_pid(s, pid);
1428 r = unit_watch_pid(UNIT(s), pid);
1430 /* FIXME: we need to do something here */
1431 log_warning_unit(UNIT(s)->id,
1432 "Failed to watch PID %lu from service %s",
1433 (unsigned long) pid, UNIT(s)->id);
1440 static int service_search_main_pid(Service *s) {
1446 /* If we know it anyway, don't ever fallback to unreliable
1448 if (s->main_pid_known)
1451 if (!s->guess_main_pid)
1454 assert(s->main_pid <= 0);
1456 pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings);
1460 log_debug_unit(UNIT(s)->id,
1461 "Main PID guessed: %lu", (unsigned long) pid);
1462 r = service_set_main_pid(s, pid);
1466 r = unit_watch_pid(UNIT(s), pid);
1468 /* FIXME: we need to do something here */
1474 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1480 /* Notifies all our sockets when we die */
1482 if (s->socket_fd >= 0)
1485 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1486 if (u->type == UNIT_SOCKET)
1487 socket_notify_service_dead(SOCKET(u), failed_permanent);
1492 static void service_set_state(Service *s, ServiceState state) {
1493 ServiceState old_state;
1494 const UnitActiveState *table;
1497 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1499 old_state = s->state;
1502 service_unwatch_pid_file(s);
1504 if (state != SERVICE_START_PRE &&
1505 state != SERVICE_START &&
1506 state != SERVICE_START_POST &&
1507 state != SERVICE_RELOAD &&
1508 state != SERVICE_STOP &&
1509 state != SERVICE_STOP_SIGTERM &&
1510 state != SERVICE_STOP_SIGKILL &&
1511 state != SERVICE_STOP_POST &&
1512 state != SERVICE_FINAL_SIGTERM &&
1513 state != SERVICE_FINAL_SIGKILL &&
1514 state != SERVICE_AUTO_RESTART)
1515 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1517 if (state != SERVICE_START &&
1518 state != SERVICE_START_POST &&
1519 state != SERVICE_RUNNING &&
1520 state != SERVICE_RELOAD &&
1521 state != SERVICE_STOP &&
1522 state != SERVICE_STOP_SIGTERM &&
1523 state != SERVICE_STOP_SIGKILL) {
1524 service_unwatch_main_pid(s);
1525 s->main_command = NULL;
1528 if (state != SERVICE_START_PRE &&
1529 state != SERVICE_START &&
1530 state != SERVICE_START_POST &&
1531 state != SERVICE_RELOAD &&
1532 state != SERVICE_STOP &&
1533 state != SERVICE_STOP_SIGTERM &&
1534 state != SERVICE_STOP_SIGKILL &&
1535 state != SERVICE_STOP_POST &&
1536 state != SERVICE_FINAL_SIGTERM &&
1537 state != SERVICE_FINAL_SIGKILL) {
1538 service_unwatch_control_pid(s);
1539 s->control_command = NULL;
1540 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1543 if (state == SERVICE_FAILED)
1544 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1546 if (state == SERVICE_DEAD ||
1547 state == SERVICE_STOP ||
1548 state == SERVICE_STOP_SIGTERM ||
1549 state == SERVICE_STOP_SIGKILL ||
1550 state == SERVICE_STOP_POST ||
1551 state == SERVICE_FINAL_SIGTERM ||
1552 state == SERVICE_FINAL_SIGKILL ||
1553 state == SERVICE_AUTO_RESTART)
1554 service_notify_sockets_dead(s, false);
1556 if (state != SERVICE_START_PRE &&
1557 state != SERVICE_START &&
1558 state != SERVICE_START_POST &&
1559 state != SERVICE_RUNNING &&
1560 state != SERVICE_RELOAD &&
1561 state != SERVICE_STOP &&
1562 state != SERVICE_STOP_SIGTERM &&
1563 state != SERVICE_STOP_SIGKILL &&
1564 state != SERVICE_STOP_POST &&
1565 state != SERVICE_FINAL_SIGTERM &&
1566 state != SERVICE_FINAL_SIGKILL &&
1567 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1568 service_close_socket_fd(s);
1569 service_connection_unref(s);
1572 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1573 service_stop_watchdog(s);
1575 /* For the inactive states unit_notify() will trim the cgroup,
1576 * but for exit we have to do that ourselves... */
1577 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1578 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1580 if (old_state != state)
1581 log_debug_unit(UNIT(s)->id,
1582 "%s changed %s -> %s", UNIT(s)->id,
1583 service_state_to_string(old_state),
1584 service_state_to_string(state));
1586 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1587 s->reload_result = SERVICE_SUCCESS;
1590 static int service_coldplug(Unit *u) {
1591 Service *s = SERVICE(u);
1595 assert(s->state == SERVICE_DEAD);
1597 if (s->deserialized_state != s->state) {
1599 if (s->deserialized_state == SERVICE_START_PRE ||
1600 s->deserialized_state == SERVICE_START ||
1601 s->deserialized_state == SERVICE_START_POST ||
1602 s->deserialized_state == SERVICE_RELOAD ||
1603 s->deserialized_state == SERVICE_STOP ||
1604 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1605 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1606 s->deserialized_state == SERVICE_STOP_POST ||
1607 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1608 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1609 s->deserialized_state == SERVICE_AUTO_RESTART) {
1610 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1613 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1615 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1621 if ((s->deserialized_state == SERVICE_START &&
1622 (s->type == SERVICE_FORKING ||
1623 s->type == SERVICE_DBUS ||
1624 s->type == SERVICE_ONESHOT ||
1625 s->type == SERVICE_NOTIFY)) ||
1626 s->deserialized_state == SERVICE_START_POST ||
1627 s->deserialized_state == SERVICE_RUNNING ||
1628 s->deserialized_state == SERVICE_RELOAD ||
1629 s->deserialized_state == SERVICE_STOP ||
1630 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1631 s->deserialized_state == SERVICE_STOP_SIGKILL)
1632 if (s->main_pid > 0) {
1633 r = unit_watch_pid(UNIT(s), s->main_pid);
1638 if (s->deserialized_state == SERVICE_START_PRE ||
1639 s->deserialized_state == SERVICE_START ||
1640 s->deserialized_state == SERVICE_START_POST ||
1641 s->deserialized_state == SERVICE_RELOAD ||
1642 s->deserialized_state == SERVICE_STOP ||
1643 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1644 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1645 s->deserialized_state == SERVICE_STOP_POST ||
1646 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1647 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1648 if (s->control_pid > 0) {
1649 r = unit_watch_pid(UNIT(s), s->control_pid);
1654 if (s->deserialized_state == SERVICE_START_POST ||
1655 s->deserialized_state == SERVICE_RUNNING)
1656 service_handle_watchdog(s);
1658 service_set_state(s, s->deserialized_state);
1663 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1667 unsigned rn_fds = 0;
1674 if (s->socket_fd >= 0)
1677 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1682 if (u->type != UNIT_SOCKET)
1687 r = socket_collect_fds(sock, &cfds, &cn_fds);
1700 t = new(int, rn_fds+cn_fds);
1707 memcpy(t, rfds, rn_fds * sizeof(int));
1708 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1713 rn_fds = rn_fds+cn_fds;
1728 static int service_spawn(
1733 bool apply_permissions,
1735 bool apply_tty_stdin,
1736 bool set_notify_socket,
1743 int _cleanup_free_ *fdsbuf = NULL;
1744 unsigned n_fds = 0, n_env = 0;
1745 char _cleanup_strv_free_
1746 **argv = NULL, **final_env = NULL, **our_env = NULL;
1753 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1754 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1755 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1757 if (s->socket_fd >= 0) {
1758 fds = &s->socket_fd;
1761 r = service_collect_fds(s, &fdsbuf, &n_fds);
1769 if (timeout && s->timeout_start_usec) {
1770 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1771 s->timeout_start_usec, &s->timer_watch);
1775 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1777 argv = unit_full_printf_strv(UNIT(s), c->argv);
1783 our_env = new0(char*, 5);
1789 if (set_notify_socket)
1790 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1795 if (s->main_pid > 0)
1796 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1801 if (s->watchdog_usec > 0)
1802 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1807 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1808 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1813 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1827 UNIT(s)->manager->confirm_spawn,
1828 UNIT(s)->cgroup_bondings,
1829 UNIT(s)->cgroup_attributes,
1830 is_control ? "control" : NULL,
1832 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1837 r = unit_watch_pid(UNIT(s), pid);
1839 /* FIXME: we need to do something here */
1848 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1853 static int main_pid_good(Service *s) {
1856 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1859 /* If we know the pid file, then lets just check if it is
1861 if (s->main_pid_known) {
1863 /* If it's an alien child let's check if it is still
1865 if (s->main_pid_alien)
1866 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1868 /* .. otherwise assume we'll get a SIGCHLD for it,
1869 * which we really should wait for to collect exit
1870 * status and code */
1871 return s->main_pid > 0;
1874 /* We don't know the pid */
1878 static int control_pid_good(Service *s) {
1881 return s->control_pid > 0;
1884 static int cgroup_good(Service *s) {
1889 r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
1896 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1900 if (f != SERVICE_SUCCESS)
1903 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1905 if (allow_restart &&
1906 !s->forbid_restart &&
1907 (s->restart == SERVICE_RESTART_ALWAYS ||
1908 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1909 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1910 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1911 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1912 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1913 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1914 (s->result != SERVICE_FAILURE_SIGNAL ||
1915 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1918 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1922 service_set_state(s, SERVICE_AUTO_RESTART);
1925 s->forbid_restart = false;
1927 /* we want fresh tmpdirs in case service is started again immediately */
1928 exec_context_tmp_dirs_done(&s->exec_context);
1933 log_warning_unit(UNIT(s)->id,
1934 "%s failed to run install restart timer: %s",
1935 UNIT(s)->id, strerror(-r));
1936 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1939 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1941 static void service_enter_stop_post(Service *s, ServiceResult f) {
1945 if (f != SERVICE_SUCCESS)
1948 service_unwatch_control_pid(s);
1950 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1951 if (s->control_command) {
1952 s->control_command_id = SERVICE_EXEC_STOP_POST;
1954 r = service_spawn(s,
1958 !s->permissions_start_only,
1959 !s->root_directory_start_only,
1968 service_set_state(s, SERVICE_STOP_POST);
1970 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1975 log_warning_unit(UNIT(s)->id,
1976 "%s failed to run 'stop-post' task: %s",
1977 UNIT(s)->id, strerror(-r));
1978 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1981 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1986 if (f != SERVICE_SUCCESS)
1989 r = unit_kill_context(
1992 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2000 if (s->timeout_stop_usec > 0) {
2001 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2002 s->timeout_stop_usec, &s->timer_watch);
2007 service_set_state(s, state);
2008 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2009 service_enter_stop_post(s, SERVICE_SUCCESS);
2011 service_enter_dead(s, SERVICE_SUCCESS, true);
2016 log_warning_unit(UNIT(s)->id,
2017 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2019 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2020 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2022 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2025 static void service_enter_stop(Service *s, ServiceResult f) {
2030 if (f != SERVICE_SUCCESS)
2033 service_unwatch_control_pid(s);
2035 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2036 if (s->control_command) {
2037 s->control_command_id = SERVICE_EXEC_STOP;
2039 r = service_spawn(s,
2043 !s->permissions_start_only,
2044 !s->root_directory_start_only,
2052 service_set_state(s, SERVICE_STOP);
2054 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2059 log_warning_unit(UNIT(s)->id,
2060 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2061 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2064 static void service_enter_running(Service *s, ServiceResult f) {
2065 int main_pid_ok, cgroup_ok;
2068 if (f != SERVICE_SUCCESS)
2071 main_pid_ok = main_pid_good(s);
2072 cgroup_ok = cgroup_good(s);
2074 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2075 (s->bus_name_good || s->type != SERVICE_DBUS))
2076 service_set_state(s, SERVICE_RUNNING);
2077 else if (s->remain_after_exit)
2078 service_set_state(s, SERVICE_EXITED);
2080 service_enter_stop(s, SERVICE_SUCCESS);
2083 static void service_enter_start_post(Service *s) {
2087 service_unwatch_control_pid(s);
2089 if (s->watchdog_usec > 0)
2090 service_reset_watchdog(s);
2092 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2093 if (s->control_command) {
2094 s->control_command_id = SERVICE_EXEC_START_POST;
2096 r = service_spawn(s,
2100 !s->permissions_start_only,
2101 !s->root_directory_start_only,
2109 service_set_state(s, SERVICE_START_POST);
2111 service_enter_running(s, SERVICE_SUCCESS);
2116 log_warning_unit(UNIT(s)->id,
2117 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2118 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2121 static void service_enter_start(Service *s) {
2128 assert(s->exec_command[SERVICE_EXEC_START]);
2129 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2131 if (s->type == SERVICE_FORKING)
2132 service_unwatch_control_pid(s);
2134 service_unwatch_main_pid(s);
2136 /* We want to ensure that nobody leaks processes from
2137 * START_PRE here, so let's go on a killing spree, People
2138 * should not spawn long running processes from START_PRE. */
2139 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2141 if (s->type == SERVICE_FORKING) {
2142 s->control_command_id = SERVICE_EXEC_START;
2143 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2145 s->main_command = NULL;
2147 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2148 s->control_command = NULL;
2150 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2153 r = service_spawn(s,
2155 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2156 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2161 s->notify_access != NOTIFY_NONE,
2167 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2168 /* For simple services we immediately start
2169 * the START_POST binaries. */
2171 service_set_main_pid(s, pid);
2172 service_enter_start_post(s);
2174 } else if (s->type == SERVICE_FORKING) {
2176 /* For forking services we wait until the start
2177 * process exited. */
2179 s->control_pid = pid;
2180 service_set_state(s, SERVICE_START);
2182 } else if (s->type == SERVICE_ONESHOT ||
2183 s->type == SERVICE_DBUS ||
2184 s->type == SERVICE_NOTIFY) {
2186 /* For oneshot services we wait until the start
2187 * process exited, too, but it is our main process. */
2189 /* For D-Bus services we know the main pid right away,
2190 * but wait for the bus name to appear on the
2191 * bus. Notify services are similar. */
2193 service_set_main_pid(s, pid);
2194 service_set_state(s, SERVICE_START);
2196 assert_not_reached("Unknown service type");
2201 log_warning_unit(UNIT(s)->id,
2202 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2203 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2206 static void service_enter_start_pre(Service *s) {
2211 service_unwatch_control_pid(s);
2213 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2214 if (s->control_command) {
2216 /* Before we start anything, let's clear up what might
2217 * be left from previous runs. */
2218 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
2219 true,true, NULL, "control");
2221 s->control_command_id = SERVICE_EXEC_START_PRE;
2223 r = service_spawn(s,
2227 !s->permissions_start_only,
2228 !s->root_directory_start_only,
2236 service_set_state(s, SERVICE_START_PRE);
2238 service_enter_start(s);
2243 log_warning_unit(UNIT(s)->id,
2244 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2245 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2248 static void service_enter_restart(Service *s) {
2253 dbus_error_init(&error);
2255 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2256 /* Don't restart things if we are going down anyway */
2257 log_info_unit(UNIT(s)->id,
2258 "Stop job pending for unit, delaying automatic restart.");
2260 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2267 /* Any units that are bound to this service must also be
2268 * restarted. We use JOB_RESTART (instead of the more obvious
2269 * JOB_START) here so that those dependency jobs will be added
2271 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2275 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2276 * it will be canceled as part of the service_stop() call that
2277 * is executed as part of JOB_RESTART. */
2279 log_debug_unit(UNIT(s)->id,
2280 "%s scheduled restart job.", UNIT(s)->id);
2284 log_warning_unit(UNIT(s)->id,
2285 "%s failed to schedule restart job: %s",
2286 UNIT(s)->id, bus_error(&error, -r));
2287 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2289 dbus_error_free(&error);
2292 static void service_enter_reload(Service *s) {
2297 service_unwatch_control_pid(s);
2299 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2300 if (s->control_command) {
2301 s->control_command_id = SERVICE_EXEC_RELOAD;
2303 r = service_spawn(s,
2307 !s->permissions_start_only,
2308 !s->root_directory_start_only,
2316 service_set_state(s, SERVICE_RELOAD);
2318 service_enter_running(s, SERVICE_SUCCESS);
2323 log_warning_unit(UNIT(s)->id,
2324 "%s failed to run 'reload' task: %s",
2325 UNIT(s)->id, strerror(-r));
2326 s->reload_result = SERVICE_FAILURE_RESOURCES;
2327 service_enter_running(s, SERVICE_SUCCESS);
2330 static void service_run_next_control(Service *s) {
2334 assert(s->control_command);
2335 assert(s->control_command->command_next);
2337 assert(s->control_command_id != SERVICE_EXEC_START);
2339 s->control_command = s->control_command->command_next;
2340 service_unwatch_control_pid(s);
2342 r = service_spawn(s,
2346 !s->permissions_start_only,
2347 !s->root_directory_start_only,
2348 s->control_command_id == SERVICE_EXEC_START_PRE ||
2349 s->control_command_id == SERVICE_EXEC_STOP_POST,
2359 log_warning_unit(UNIT(s)->id,
2360 "%s failed to run next control task: %s",
2361 UNIT(s)->id, strerror(-r));
2363 if (s->state == SERVICE_START_PRE)
2364 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2365 else if (s->state == SERVICE_STOP)
2366 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2367 else if (s->state == SERVICE_STOP_POST)
2368 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2369 else if (s->state == SERVICE_RELOAD) {
2370 s->reload_result = SERVICE_FAILURE_RESOURCES;
2371 service_enter_running(s, SERVICE_SUCCESS);
2373 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2376 static void service_run_next_main(Service *s) {
2381 assert(s->main_command);
2382 assert(s->main_command->command_next);
2383 assert(s->type == SERVICE_ONESHOT);
2385 s->main_command = s->main_command->command_next;
2386 service_unwatch_main_pid(s);
2388 r = service_spawn(s,
2395 s->notify_access != NOTIFY_NONE,
2401 service_set_main_pid(s, pid);
2406 log_warning_unit(UNIT(s)->id,
2407 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2408 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2411 static int service_start_limit_test(Service *s) {
2414 if (ratelimit_test(&s->start_limit))
2417 switch (s->start_limit_action) {
2419 case SERVICE_START_LIMIT_NONE:
2420 log_warning_unit(UNIT(s)->id,
2421 "%s start request repeated too quickly, refusing to start.",
2425 case SERVICE_START_LIMIT_REBOOT: {
2429 dbus_error_init(&error);
2431 log_warning_unit(UNIT(s)->id,
2432 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2434 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2435 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2436 true, &error, NULL);
2438 log_error_unit(UNIT(s)->id,
2439 "Failed to reboot: %s.", bus_error(&error, r));
2440 dbus_error_free(&error);
2446 case SERVICE_START_LIMIT_REBOOT_FORCE:
2447 log_warning_unit(UNIT(s)->id,
2448 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2449 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2452 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2453 log_warning_unit(UNIT(s)->id,
2454 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2456 reboot(RB_AUTOBOOT);
2460 log_error_unit(UNIT(s)->id,
2461 "start limit action=%i", s->start_limit_action);
2462 assert_not_reached("Unknown StartLimitAction.");
2468 static int service_start(Unit *u) {
2469 Service *s = SERVICE(u);
2474 /* We cannot fulfill this request right now, try again later
2476 if (s->state == SERVICE_STOP ||
2477 s->state == SERVICE_STOP_SIGTERM ||
2478 s->state == SERVICE_STOP_SIGKILL ||
2479 s->state == SERVICE_STOP_POST ||
2480 s->state == SERVICE_FINAL_SIGTERM ||
2481 s->state == SERVICE_FINAL_SIGKILL)
2484 /* Already on it! */
2485 if (s->state == SERVICE_START_PRE ||
2486 s->state == SERVICE_START ||
2487 s->state == SERVICE_START_POST)
2490 /* A service that will be restarted must be stopped first to
2491 * trigger BindsTo and/or OnFailure dependencies. If a user
2492 * does not want to wait for the holdoff time to elapse, the
2493 * service should be manually restarted, not started. We
2494 * simply return EAGAIN here, so that any start jobs stay
2495 * queued, and assume that the auto restart timer will
2496 * eventually trigger the restart. */
2497 if (s->state == SERVICE_AUTO_RESTART)
2500 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2502 /* Make sure we don't enter a busy loop of some kind. */
2503 r = service_start_limit_test(s);
2505 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2509 s->result = SERVICE_SUCCESS;
2510 s->reload_result = SERVICE_SUCCESS;
2511 s->main_pid_known = false;
2512 s->main_pid_alien = false;
2513 s->forbid_restart = false;
2515 service_enter_start_pre(s);
2519 static int service_stop(Unit *u) {
2520 Service *s = SERVICE(u);
2524 /* Don't create restart jobs from here. */
2525 s->forbid_restart = true;
2528 if (s->state == SERVICE_STOP ||
2529 s->state == SERVICE_STOP_SIGTERM ||
2530 s->state == SERVICE_STOP_SIGKILL ||
2531 s->state == SERVICE_STOP_POST ||
2532 s->state == SERVICE_FINAL_SIGTERM ||
2533 s->state == SERVICE_FINAL_SIGKILL)
2536 /* A restart will be scheduled or is in progress. */
2537 if (s->state == SERVICE_AUTO_RESTART) {
2538 service_set_state(s, SERVICE_DEAD);
2542 /* If there's already something running we go directly into
2544 if (s->state == SERVICE_START_PRE ||
2545 s->state == SERVICE_START ||
2546 s->state == SERVICE_START_POST ||
2547 s->state == SERVICE_RELOAD) {
2548 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2552 assert(s->state == SERVICE_RUNNING ||
2553 s->state == SERVICE_EXITED);
2555 service_enter_stop(s, SERVICE_SUCCESS);
2559 static int service_reload(Unit *u) {
2560 Service *s = SERVICE(u);
2564 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2566 service_enter_reload(s);
2570 static bool service_can_reload(Unit *u) {
2571 Service *s = SERVICE(u);
2575 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2578 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2579 Service *s = SERVICE(u);
2585 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2586 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2587 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2589 if (s->control_pid > 0)
2590 unit_serialize_item_format(u, f, "control-pid", "%lu",
2591 (unsigned long) s->control_pid);
2593 if (s->main_pid_known && s->main_pid > 0)
2594 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2596 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2599 unit_serialize_item(u, f, "status-text", s->status_text);
2601 /* FIXME: There's a minor uncleanliness here: if there are
2602 * multiple commands attached here, we will start from the
2603 * first one again */
2604 if (s->control_command_id >= 0)
2605 unit_serialize_item(u, f, "control-command",
2606 service_exec_command_to_string(s->control_command_id));
2608 if (s->socket_fd >= 0) {
2611 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2614 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2617 if (s->main_exec_status.pid > 0) {
2618 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2619 (unsigned long) s->main_exec_status.pid);
2620 dual_timestamp_serialize(f, "main-exec-status-start",
2621 &s->main_exec_status.start_timestamp);
2622 dual_timestamp_serialize(f, "main-exec-status-exit",
2623 &s->main_exec_status.exit_timestamp);
2625 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2626 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2627 s->main_exec_status.code);
2628 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2629 s->main_exec_status.status);
2632 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2633 dual_timestamp_serialize(f, "watchdog-timestamp",
2634 &s->watchdog_timestamp);
2636 if (s->exec_context.tmp_dir)
2637 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2639 if (s->exec_context.var_tmp_dir)
2640 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
2645 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2646 Service *s = SERVICE(u);
2653 if (streq(key, "state")) {
2656 state = service_state_from_string(value);
2658 log_debug_unit(u->id, "Failed to parse state value %s", value);
2660 s->deserialized_state = state;
2661 } else if (streq(key, "result")) {
2664 f = service_result_from_string(value);
2666 log_debug_unit(u->id, "Failed to parse result value %s", value);
2667 else if (f != SERVICE_SUCCESS)
2670 } else if (streq(key, "reload-result")) {
2673 f = service_result_from_string(value);
2675 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2676 else if (f != SERVICE_SUCCESS)
2677 s->reload_result = f;
2679 } else if (streq(key, "control-pid")) {
2682 if (parse_pid(value, &pid) < 0)
2683 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2685 s->control_pid = pid;
2686 } else if (streq(key, "main-pid")) {
2689 if (parse_pid(value, &pid) < 0)
2690 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2692 service_set_main_pid(s, (pid_t) pid);
2693 } else if (streq(key, "main-pid-known")) {
2696 b = parse_boolean(value);
2698 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2700 s->main_pid_known = b;
2701 } else if (streq(key, "status-text")) {
2708 free(s->status_text);
2712 } else if (streq(key, "control-command")) {
2713 ServiceExecCommand id;
2715 id = service_exec_command_from_string(value);
2717 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2719 s->control_command_id = id;
2720 s->control_command = s->exec_command[id];
2722 } else if (streq(key, "socket-fd")) {
2725 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2726 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2729 if (s->socket_fd >= 0)
2730 close_nointr_nofail(s->socket_fd);
2731 s->socket_fd = fdset_remove(fds, fd);
2733 } else if (streq(key, "main-exec-status-pid")) {
2736 if (parse_pid(value, &pid) < 0)
2737 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2739 s->main_exec_status.pid = pid;
2740 } else if (streq(key, "main-exec-status-code")) {
2743 if (safe_atoi(value, &i) < 0)
2744 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2746 s->main_exec_status.code = i;
2747 } else if (streq(key, "main-exec-status-status")) {
2750 if (safe_atoi(value, &i) < 0)
2751 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2753 s->main_exec_status.status = i;
2754 } else if (streq(key, "main-exec-status-start"))
2755 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2756 else if (streq(key, "main-exec-status-exit"))
2757 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2758 else if (streq(key, "watchdog-timestamp"))
2759 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2760 else if (streq(key, "tmp-dir")) {
2767 s->exec_context.tmp_dir = t;
2768 } else if (streq(key, "var-tmp-dir")) {
2775 s->exec_context.var_tmp_dir = t;
2777 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2782 static UnitActiveState service_active_state(Unit *u) {
2783 const UnitActiveState *table;
2787 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2789 return table[SERVICE(u)->state];
2792 static const char *service_sub_state_to_string(Unit *u) {
2795 return service_state_to_string(SERVICE(u)->state);
2798 static bool service_check_gc(Unit *u) {
2799 Service *s = SERVICE(u);
2803 /* Never clean up services that still have a process around,
2804 * even if the service is formally dead. */
2805 if (cgroup_good(s) > 0 ||
2806 main_pid_good(s) > 0 ||
2807 control_pid_good(s) > 0)
2810 #ifdef HAVE_SYSV_COMPAT
2818 static bool service_check_snapshot(Unit *u) {
2819 Service *s = SERVICE(u);
2823 return !s->got_socket_fd;
2826 static int service_retry_pid_file(Service *s) {
2829 assert(s->pid_file);
2830 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2832 r = service_load_pid_file(s, false);
2836 service_unwatch_pid_file(s);
2838 service_enter_running(s, SERVICE_SUCCESS);
2842 static int service_watch_pid_file(Service *s) {
2845 log_debug_unit(UNIT(s)->id,
2846 "Setting watch for %s's PID file %s",
2847 UNIT(s)->id, s->pid_file_pathspec->path);
2848 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2852 /* the pidfile might have appeared just before we set the watch */
2853 log_debug_unit(UNIT(s)->id,
2854 "Trying to read %s's PID file %s in case it changed",
2855 UNIT(s)->id, s->pid_file_pathspec->path);
2856 service_retry_pid_file(s);
2860 log_error_unit(UNIT(s)->id,
2861 "Failed to set a watch for %s's PID file %s: %s",
2862 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2863 service_unwatch_pid_file(s);
2867 static int service_demand_pid_file(Service *s) {
2870 assert(s->pid_file);
2871 assert(!s->pid_file_pathspec);
2873 ps = new0(PathSpec, 1);
2877 ps->path = strdup(s->pid_file);
2883 path_kill_slashes(ps->path);
2885 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2886 * keep their PID file open all the time. */
2887 ps->type = PATH_MODIFIED;
2888 ps->inotify_fd = -1;
2890 s->pid_file_pathspec = ps;
2892 return service_watch_pid_file(s);
2895 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2896 Service *s = SERVICE(u);
2900 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2901 assert(s->pid_file_pathspec);
2902 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2904 log_debug_unit(u->id, "inotify event for %s", u->id);
2906 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2909 if (service_retry_pid_file(s) == 0)
2912 if (service_watch_pid_file(s) < 0)
2917 service_unwatch_pid_file(s);
2918 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2921 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2922 Service *s = SERVICE(u);
2928 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2929 is_clean_exit_lsb(code, status, &s->success_status))
2930 f = SERVICE_SUCCESS;
2931 else if (code == CLD_EXITED)
2932 f = SERVICE_FAILURE_EXIT_CODE;
2933 else if (code == CLD_KILLED)
2934 f = SERVICE_FAILURE_SIGNAL;
2935 else if (code == CLD_DUMPED)
2936 f = SERVICE_FAILURE_CORE_DUMP;
2938 assert_not_reached("Unknown code");
2940 if (s->main_pid == pid) {
2941 /* Forking services may occasionally move to a new PID.
2942 * As long as they update the PID file before exiting the old
2943 * PID, they're fine. */
2944 if (service_load_pid_file(s, false) == 0)
2948 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2950 if (s->main_command) {
2951 /* If this is not a forking service than the
2952 * main process got started and hence we copy
2953 * the exit status so that it is recorded both
2954 * as main and as control process exit
2957 s->main_command->exec_status = s->main_exec_status;
2959 if (s->main_command->ignore)
2960 f = SERVICE_SUCCESS;
2961 } else if (s->exec_command[SERVICE_EXEC_START]) {
2963 /* If this is a forked process, then we should
2964 * ignore the return value if this was
2965 * configured for the starter process */
2967 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2968 f = SERVICE_SUCCESS;
2971 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2973 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2974 u->id, sigchld_code_to_string(code), status,
2975 strna(code == CLD_EXITED
2976 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2977 : signal_to_string(status)),
2978 "EXIT_CODE=%s", sigchld_code_to_string(code),
2979 "EXIT_STATUS=%i", status,
2982 if (f != SERVICE_SUCCESS)
2985 if (s->main_command &&
2986 s->main_command->command_next &&
2987 f == SERVICE_SUCCESS) {
2989 /* There is another command to *
2990 * execute, so let's do that. */
2992 log_debug_unit(u->id,
2993 "%s running next main command for state %s",
2994 u->id, service_state_to_string(s->state));
2995 service_run_next_main(s);
2999 /* The service exited, so the service is officially
3001 s->main_command = NULL;
3005 case SERVICE_START_POST:
3006 case SERVICE_RELOAD:
3008 /* Need to wait until the operation is
3013 if (s->type == SERVICE_ONESHOT) {
3014 /* This was our main goal, so let's go on */
3015 if (f == SERVICE_SUCCESS)
3016 service_enter_start_post(s);
3018 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3024 case SERVICE_RUNNING:
3025 service_enter_running(s, f);
3028 case SERVICE_STOP_SIGTERM:
3029 case SERVICE_STOP_SIGKILL:
3031 if (!control_pid_good(s))
3032 service_enter_stop_post(s, f);
3034 /* If there is still a control process, wait for that first */
3038 assert_not_reached("Uh, main process died at wrong time.");
3042 } else if (s->control_pid == pid) {
3046 if (s->control_command) {
3047 exec_status_exit(&s->control_command->exec_status,
3048 &s->exec_context, pid, code, status);
3050 if (s->control_command->ignore)
3051 f = SERVICE_SUCCESS;
3054 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3055 "%s: control process exited, code=%s status=%i",
3056 u->id, sigchld_code_to_string(code), status);
3058 if (f != SERVICE_SUCCESS)
3061 /* Immediately get rid of the cgroup, so that the
3062 * kernel doesn't delay the cgroup empty messages for
3063 * the service cgroup any longer than necessary */
3064 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
3065 true, true, NULL, "control");
3067 if (s->control_command &&
3068 s->control_command->command_next &&
3069 f == SERVICE_SUCCESS) {
3071 /* There is another command to *
3072 * execute, so let's do that. */
3074 log_debug_unit(u->id,
3075 "%s running next control command for state %s",
3076 u->id, service_state_to_string(s->state));
3077 service_run_next_control(s);
3080 /* No further commands for this step, so let's
3081 * figure out what to do next */
3083 s->control_command = NULL;
3084 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3086 log_debug_unit(u->id,
3087 "%s got final SIGCHLD for state %s",
3088 u->id, service_state_to_string(s->state));
3092 case SERVICE_START_PRE:
3093 if (f == SERVICE_SUCCESS)
3094 service_enter_start(s);
3096 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3100 if (s->type != SERVICE_FORKING)
3101 /* Maybe spurious event due to a reload that changed the type? */
3104 if (f != SERVICE_SUCCESS) {
3105 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3110 bool has_start_post;
3113 /* Let's try to load the pid file here if we can.
3114 * The PID file might actually be created by a START_POST
3115 * script. In that case don't worry if the loading fails. */
3117 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3118 r = service_load_pid_file(s, !has_start_post);
3119 if (!has_start_post && r < 0) {
3120 r = service_demand_pid_file(s);
3121 if (r < 0 || !cgroup_good(s))
3122 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3126 service_search_main_pid(s);
3128 service_enter_start_post(s);
3131 case SERVICE_START_POST:
3132 if (f != SERVICE_SUCCESS) {
3133 service_enter_stop(s, f);
3140 r = service_load_pid_file(s, true);
3142 r = service_demand_pid_file(s);
3143 if (r < 0 || !cgroup_good(s))
3144 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3148 service_search_main_pid(s);
3150 service_enter_running(s, SERVICE_SUCCESS);
3153 case SERVICE_RELOAD:
3154 if (f == SERVICE_SUCCESS) {
3155 service_load_pid_file(s, true);
3156 service_search_main_pid(s);
3159 s->reload_result = f;
3160 service_enter_running(s, SERVICE_SUCCESS);
3164 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3167 case SERVICE_STOP_SIGTERM:
3168 case SERVICE_STOP_SIGKILL:
3169 if (main_pid_good(s) <= 0)
3170 service_enter_stop_post(s, f);
3172 /* If there is still a service
3173 * process around, wait until
3174 * that one quit, too */
3177 case SERVICE_STOP_POST:
3178 case SERVICE_FINAL_SIGTERM:
3179 case SERVICE_FINAL_SIGKILL:
3180 service_enter_dead(s, f, true);
3184 assert_not_reached("Uh, control process died at wrong time.");
3189 /* Notify clients about changed exit status */
3190 unit_add_to_dbus_queue(u);
3193 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3194 Service *s = SERVICE(u);
3197 assert(elapsed == 1);
3199 if (w == &s->watchdog_watch) {
3200 service_handle_watchdog(s);
3204 assert(w == &s->timer_watch);
3208 case SERVICE_START_PRE:
3210 log_warning_unit(u->id,
3211 "%s operation timed out. Terminating.", u->id);
3212 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3215 case SERVICE_START_POST:
3216 log_warning_unit(u->id,
3217 "%s operation timed out. Stopping.", u->id);
3218 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3221 case SERVICE_RELOAD:
3222 log_warning_unit(u->id,
3223 "%s operation timed out. Stopping.", u->id);
3224 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3225 service_enter_running(s, SERVICE_SUCCESS);
3229 log_warning_unit(u->id,
3230 "%s stopping timed out. Terminating.", u->id);
3231 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3234 case SERVICE_STOP_SIGTERM:
3235 if (s->kill_context.send_sigkill) {
3236 log_warning_unit(u->id,
3237 "%s stopping timed out. Killing.", u->id);
3238 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3240 log_warning_unit(u->id,
3241 "%s stopping timed out. Skipping SIGKILL.", u->id);
3242 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3247 case SERVICE_STOP_SIGKILL:
3248 /* Uh, we sent a SIGKILL and it is still not gone?
3249 * Must be something we cannot kill, so let's just be
3250 * weirded out and continue */
3252 log_warning_unit(u->id,
3253 "%s still around after SIGKILL. Ignoring.", u->id);
3254 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3257 case SERVICE_STOP_POST:
3258 log_warning_unit(u->id,
3259 "%s stopping timed out (2). Terminating.", u->id);
3260 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3263 case SERVICE_FINAL_SIGTERM:
3264 if (s->kill_context.send_sigkill) {
3265 log_warning_unit(u->id,
3266 "%s stopping timed out (2). Killing.", u->id);
3267 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3269 log_warning_unit(u->id,
3270 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3272 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3277 case SERVICE_FINAL_SIGKILL:
3278 log_warning_unit(u->id,
3279 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3280 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3283 case SERVICE_AUTO_RESTART:
3284 log_info_unit(u->id,
3285 "%s holdoff time over, scheduling restart.", u->id);
3286 service_enter_restart(s);
3290 assert_not_reached("Timeout at wrong time.");
3294 static void service_cgroup_notify_event(Unit *u) {
3295 Service *s = SERVICE(u);
3299 log_debug_unit(u->id,
3300 "%s: cgroup is empty", u->id);
3304 /* Waiting for SIGCHLD is usually more interesting,
3305 * because it includes return codes/signals. Which is
3306 * why we ignore the cgroup events for most cases,
3307 * except when we don't know pid which to expect the
3311 case SERVICE_START_POST:
3312 /* If we were hoping for the daemon to write its PID file,
3313 * we can give up now. */
3314 if (s->pid_file_pathspec) {
3315 log_warning_unit(u->id,
3316 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3317 service_unwatch_pid_file(s);
3318 if (s->state == SERVICE_START)
3319 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3321 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3325 case SERVICE_RUNNING:
3326 /* service_enter_running() will figure out what to do */
3327 service_enter_running(s, SERVICE_SUCCESS);
3330 case SERVICE_STOP_SIGTERM:
3331 case SERVICE_STOP_SIGKILL:
3333 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3334 service_enter_stop_post(s, SERVICE_SUCCESS);
3338 case SERVICE_FINAL_SIGTERM:
3339 case SERVICE_FINAL_SIGKILL:
3340 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3341 service_enter_dead(s, SERVICE_SUCCESS, true);
3350 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3351 Service *s = SERVICE(u);
3356 if (s->notify_access == NOTIFY_NONE) {
3357 log_warning_unit(u->id,
3358 "%s: Got notification message from PID %lu, but reception is disabled.",
3359 u->id, (unsigned long) pid);
3363 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3364 log_warning_unit(u->id,
3365 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3366 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3370 log_debug_unit(u->id,
3371 "%s: Got message", u->id);
3373 /* Interpret MAINPID= */
3374 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3375 (s->state == SERVICE_START ||
3376 s->state == SERVICE_START_POST ||
3377 s->state == SERVICE_RUNNING ||
3378 s->state == SERVICE_RELOAD)) {
3380 if (parse_pid(e + 8, &pid) < 0)
3381 log_warning_unit(u->id,
3382 "Failed to parse notification message %s", e);
3384 log_debug_unit(u->id,
3385 "%s: got %s", u->id, e);
3386 service_set_main_pid(s, pid);
3390 /* Interpret READY= */
3391 if (s->type == SERVICE_NOTIFY &&
3392 s->state == SERVICE_START &&
3393 strv_find(tags, "READY=1")) {
3394 log_debug_unit(u->id,
3395 "%s: got READY=1", u->id);
3397 service_enter_start_post(s);
3400 /* Interpret STATUS= */
3401 e = strv_find_prefix(tags, "STATUS=");
3407 if (!utf8_is_valid(e+7)) {
3408 log_warning_unit(u->id,
3409 "Status message in notification is not UTF-8 clean.");
3415 log_error_unit(u->id,
3416 "Failed to allocate string.");
3420 log_debug_unit(u->id,
3421 "%s: got %s", u->id, e);
3423 free(s->status_text);
3426 free(s->status_text);
3427 s->status_text = NULL;
3431 if (strv_find(tags, "WATCHDOG=1")) {
3432 log_debug_unit(u->id,
3433 "%s: got WATCHDOG=1", u->id);
3434 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3435 service_reset_watchdog(s);
3438 /* Notify clients about changed status or main pid */
3439 unit_add_to_dbus_queue(u);
3442 #ifdef HAVE_SYSV_COMPAT
3444 static int service_enumerate(Manager *m) {
3447 DIR _cleanup_closedir_ *d = NULL;
3448 char _cleanup_free_ *path = NULL, *fpath = NULL, *name = NULL;
3449 Set *runlevel_services[ELEMENTSOF(rcnd_table)];
3450 Set _cleanup_set_free_ *shutdown_services = NULL;
3457 if (m->running_as != SYSTEMD_SYSTEM)
3460 zero(runlevel_services);
3462 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3463 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3467 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3478 if (errno != ENOENT)
3479 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3484 while ((de = readdir(d))) {
3487 if (ignore_file(de->d_name))
3490 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3493 if (strlen(de->d_name) < 4)
3496 a = undecchar(de->d_name[1]);
3497 b = undecchar(de->d_name[2]);
3503 fpath = strjoin(path, "/", de->d_name, NULL);
3509 if (access(fpath, X_OK) < 0) {
3511 if (errno != ENOENT)
3512 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3518 name = sysv_translate_name(de->d_name + 3);
3524 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3526 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3530 if (de->d_name[0] == 'S') {
3532 if (rcnd_table[i].type == RUNLEVEL_UP) {
3533 SERVICE(service)->sysv_start_priority_from_rcnd =
3534 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3536 SERVICE(service)->sysv_enabled = true;
3539 r = set_ensure_allocated(&runlevel_services[i],
3540 trivial_hash_func, trivial_compare_func);
3544 r = set_put(runlevel_services[i], service);
3548 } else if (de->d_name[0] == 'K' &&
3549 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3551 r = set_ensure_allocated(&shutdown_services,
3552 trivial_hash_func, trivial_compare_func);
3556 r = set_put(shutdown_services, service);
3563 /* Now we loaded all stubs and are aware of the lowest
3564 start-up priority for all services, not let's actually load
3565 the services, this will also tell us which services are
3566 actually native now */
3567 manager_dispatch_load_queue(m);
3569 /* If this is a native service, rely on native ways to pull in
3570 * a service, don't pull it in via sysv rcN.d links. */
3571 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3572 SET_FOREACH(service, runlevel_services[i], j) {
3573 service = unit_follow_merge(service);
3575 if (service->fragment_path)
3578 r = unit_add_two_dependencies_by_name_inverse(
3579 service, UNIT_AFTER, UNIT_WANTS,
3580 rcnd_table[i].target, NULL, true);
3585 /* We honour K links only for halt/reboot. For the normal
3586 * runlevels we assume the stop jobs will be implicitly added
3587 * by the core logic. Also, we don't really distinguish here
3588 * between the runlevels 0 and 6 and just add them to the
3589 * special shutdown target. */
3590 SET_FOREACH(service, shutdown_services, j) {
3591 service = unit_follow_merge(service);
3593 if (service->fragment_path)
3596 r = unit_add_two_dependencies_by_name(
3597 service, UNIT_BEFORE, UNIT_CONFLICTS,
3598 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3607 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3608 set_free(runlevel_services[i]);
3614 static void service_bus_name_owner_change(
3617 const char *old_owner,
3618 const char *new_owner) {
3620 Service *s = SERVICE(u);
3625 assert(streq(s->bus_name, name));
3626 assert(old_owner || new_owner);
3628 if (old_owner && new_owner)
3629 log_debug_unit(u->id,
3630 "%s's D-Bus name %s changed owner from %s to %s",
3631 u->id, name, old_owner, new_owner);
3633 log_debug_unit(u->id,
3634 "%s's D-Bus name %s no longer registered by %s",
3635 u->id, name, old_owner);
3637 log_debug_unit(u->id,
3638 "%s's D-Bus name %s now registered by %s",
3639 u->id, name, new_owner);
3641 s->bus_name_good = !!new_owner;
3643 if (s->type == SERVICE_DBUS) {
3645 /* service_enter_running() will figure out what to
3647 if (s->state == SERVICE_RUNNING)
3648 service_enter_running(s, SERVICE_SUCCESS);
3649 else if (s->state == SERVICE_START && new_owner)
3650 service_enter_start_post(s);
3652 } else if (new_owner &&
3654 (s->state == SERVICE_START ||
3655 s->state == SERVICE_START_POST ||
3656 s->state == SERVICE_RUNNING ||
3657 s->state == SERVICE_RELOAD)) {
3659 /* Try to acquire PID from bus service */
3660 log_debug_unit(u->id,
3661 "Trying to acquire PID from D-Bus name...");
3663 bus_query_pid(u->manager, name);
3667 static void service_bus_query_pid_done(
3672 Service *s = SERVICE(u);
3677 log_debug_unit(u->id,
3678 "%s's D-Bus name %s is now owned by process %u",
3679 u->id, name, (unsigned) pid);
3681 if (s->main_pid <= 0 &&
3682 (s->state == SERVICE_START ||
3683 s->state == SERVICE_START_POST ||
3684 s->state == SERVICE_RUNNING ||
3685 s->state == SERVICE_RELOAD))
3686 service_set_main_pid(s, pid);
3689 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3694 /* This is called by the socket code when instantiating a new
3695 * service for a stream socket and the socket needs to be
3698 if (UNIT(s)->load_state != UNIT_LOADED)
3701 if (s->socket_fd >= 0)
3704 if (s->state != SERVICE_DEAD)
3708 s->got_socket_fd = true;
3710 unit_ref_set(&s->accept_socket, UNIT(sock));
3712 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3715 static void service_reset_failed(Unit *u) {
3716 Service *s = SERVICE(u);
3720 if (s->state == SERVICE_FAILED)
3721 service_set_state(s, SERVICE_DEAD);
3723 s->result = SERVICE_SUCCESS;
3724 s->reload_result = SERVICE_SUCCESS;
3726 RATELIMIT_RESET(s->start_limit);
3729 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3730 Service *s = SERVICE(u);
3731 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3734 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3735 [SERVICE_DEAD] = "dead",
3736 [SERVICE_START_PRE] = "start-pre",
3737 [SERVICE_START] = "start",
3738 [SERVICE_START_POST] = "start-post",
3739 [SERVICE_RUNNING] = "running",
3740 [SERVICE_EXITED] = "exited",
3741 [SERVICE_RELOAD] = "reload",
3742 [SERVICE_STOP] = "stop",
3743 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3744 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3745 [SERVICE_STOP_POST] = "stop-post",
3746 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3747 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3748 [SERVICE_FAILED] = "failed",
3749 [SERVICE_AUTO_RESTART] = "auto-restart",
3752 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3754 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3755 [SERVICE_RESTART_NO] = "no",
3756 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3757 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3758 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3759 [SERVICE_RESTART_ALWAYS] = "always"
3762 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3764 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3765 [SERVICE_SIMPLE] = "simple",
3766 [SERVICE_FORKING] = "forking",
3767 [SERVICE_ONESHOT] = "oneshot",
3768 [SERVICE_DBUS] = "dbus",
3769 [SERVICE_NOTIFY] = "notify",
3770 [SERVICE_IDLE] = "idle"
3773 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3775 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3776 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3777 [SERVICE_EXEC_START] = "ExecStart",
3778 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3779 [SERVICE_EXEC_RELOAD] = "ExecReload",
3780 [SERVICE_EXEC_STOP] = "ExecStop",
3781 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3784 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3786 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3787 [NOTIFY_NONE] = "none",
3788 [NOTIFY_MAIN] = "main",
3789 [NOTIFY_ALL] = "all"
3792 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3794 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3795 [SERVICE_SUCCESS] = "success",
3796 [SERVICE_FAILURE_RESOURCES] = "resources",
3797 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3798 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3799 [SERVICE_FAILURE_SIGNAL] = "signal",
3800 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3801 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3802 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3805 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3807 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3808 [SERVICE_START_LIMIT_NONE] = "none",
3809 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3810 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3811 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3813 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3815 const UnitVTable service_vtable = {
3816 .object_size = sizeof(Service),
3823 .exec_context_offset = offsetof(Service, exec_context),
3824 .exec_section = "Service",
3826 .init = service_init,
3827 .done = service_done,
3828 .load = service_load,
3830 .coldplug = service_coldplug,
3832 .dump = service_dump,
3834 .start = service_start,
3835 .stop = service_stop,
3836 .reload = service_reload,
3838 .can_reload = service_can_reload,
3840 .kill = service_kill,
3842 .serialize = service_serialize,
3843 .deserialize_item = service_deserialize_item,
3845 .active_state = service_active_state,
3846 .sub_state_to_string = service_sub_state_to_string,
3848 .check_gc = service_check_gc,
3849 .check_snapshot = service_check_snapshot,
3851 .sigchld_event = service_sigchld_event,
3852 .timer_event = service_timer_event,
3853 .fd_event = service_fd_event,
3855 .reset_failed = service_reset_failed,
3857 .cgroup_notify_empty = service_cgroup_notify_event,
3858 .notify_message = service_notify_message,
3860 .bus_name_owner_change = service_bus_name_owner_change,
3861 .bus_query_pid_done = service_bus_query_pid_done,
3863 .bus_interface = "org.freedesktop.systemd1.Service",
3864 .bus_message_handler = bus_service_message_handler,
3865 .bus_invalidating_properties = bus_service_invalidating_properties,
3867 #ifdef HAVE_SYSV_COMPAT
3868 .enumerate = service_enumerate,
3870 .status_message_formats = {
3871 .starting_stopping = {
3872 [0] = "Starting %s...",
3873 [1] = "Stopping %s...",
3875 .finished_start_job = {
3876 [JOB_DONE] = "Started %s.",
3877 [JOB_FAILED] = "Failed to start %s.",
3878 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3879 [JOB_TIMEOUT] = "Timed out starting %s.",
3881 .finished_stop_job = {
3882 [JOB_DONE] = "Stopped %s.",
3883 [JOB_FAILED] = "Stopped (with error) %s.",
3884 [JOB_TIMEOUT] = "Timed out stopping %s.",