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);
1153 /* Second, activate normal shutdown */
1154 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1155 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1159 static void service_fix_output(Service *s) {
1162 /* If nothing has been explicitly configured, patch default
1163 * output in. If input is socket/tty we avoid this however,
1164 * since in that case we want output to default to the same
1165 * place as we read input from. */
1167 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1168 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1169 s->exec_context.std_input == EXEC_INPUT_NULL)
1170 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1172 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1173 s->exec_context.std_input == EXEC_INPUT_NULL)
1174 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1177 static int service_load(Unit *u) {
1179 Service *s = SERVICE(u);
1183 /* Load a .service file */
1184 if ((r = unit_load_fragment(u)) < 0)
1187 #ifdef HAVE_SYSV_COMPAT
1188 /* Load a classic init script as a fallback, if we couldn't find anything */
1189 if (u->load_state == UNIT_STUB)
1190 if ((r = service_load_sysv(s)) < 0)
1194 /* Still nothing found? Then let's give up */
1195 if (u->load_state == UNIT_STUB)
1198 /* We were able to load something, then let's add in the
1199 * dropin directories. */
1200 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1203 /* This is a new unit? Then let's add in some extras */
1204 if (u->load_state == UNIT_LOADED) {
1205 if (s->type == _SERVICE_TYPE_INVALID)
1206 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1208 /* Oneshot services have disabled start timeout by default */
1209 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1210 s->timeout_start_usec = 0;
1212 service_fix_output(s);
1214 r = unit_add_exec_dependencies(u, &s->exec_context);
1218 r = unit_add_default_cgroups(u);
1222 #ifdef HAVE_SYSV_COMPAT
1223 r = sysv_fix_order(s);
1228 r = fsck_fix_order(s);
1233 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1236 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1237 s->notify_access = NOTIFY_MAIN;
1239 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1240 s->notify_access = NOTIFY_MAIN;
1242 if (s->type == SERVICE_DBUS || s->bus_name) {
1243 r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
1244 SPECIAL_DBUS_SOCKET, NULL, true);
1249 if (UNIT(s)->default_dependencies) {
1250 r = service_add_default_dependencies(s);
1255 r = unit_exec_context_defaults(u, &s->exec_context);
1260 return service_verify(s);
1263 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1265 ServiceExecCommand c;
1266 Service *s = SERVICE(u);
1267 const char *prefix2;
1268 char _cleanup_free_ *p2 = NULL;
1272 p2 = strappend(prefix, "\t");
1273 prefix2 = p2 ? p2 : prefix;
1276 "%sService State: %s\n"
1278 "%sReload Result: %s\n"
1279 "%sPermissionsStartOnly: %s\n"
1280 "%sRootDirectoryStartOnly: %s\n"
1281 "%sRemainAfterExit: %s\n"
1282 "%sGuessMainPID: %s\n"
1285 "%sNotifyAccess: %s\n",
1286 prefix, service_state_to_string(s->state),
1287 prefix, service_result_to_string(s->result),
1288 prefix, service_result_to_string(s->reload_result),
1289 prefix, yes_no(s->permissions_start_only),
1290 prefix, yes_no(s->root_directory_start_only),
1291 prefix, yes_no(s->remain_after_exit),
1292 prefix, yes_no(s->guess_main_pid),
1293 prefix, service_type_to_string(s->type),
1294 prefix, service_restart_to_string(s->restart),
1295 prefix, notify_access_to_string(s->notify_access));
1297 if (s->control_pid > 0)
1299 "%sControl PID: %lu\n",
1300 prefix, (unsigned long) s->control_pid);
1302 if (s->main_pid > 0)
1305 "%sMain PID Known: %s\n"
1306 "%sMain PID Alien: %s\n",
1307 prefix, (unsigned long) s->main_pid,
1308 prefix, yes_no(s->main_pid_known),
1309 prefix, yes_no(s->main_pid_alien));
1314 prefix, s->pid_file);
1319 "%sBus Name Good: %s\n",
1320 prefix, s->bus_name,
1321 prefix, yes_no(s->bus_name_good));
1323 kill_context_dump(&s->kill_context, f, prefix);
1324 exec_context_dump(&s->exec_context, f, prefix);
1326 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1328 if (!s->exec_command[c])
1331 fprintf(f, "%s-> %s:\n",
1332 prefix, service_exec_command_to_string(c));
1334 exec_command_dump_list(s->exec_command[c], f, prefix2);
1337 #ifdef HAVE_SYSV_COMPAT
1340 "%sSysV Init Script has LSB Header: %s\n"
1341 "%sSysVEnabled: %s\n",
1342 prefix, yes_no(s->sysv_has_lsb),
1343 prefix, yes_no(s->sysv_enabled));
1345 if (s->sysv_start_priority >= 0)
1347 "%sSysVStartPriority: %i\n",
1348 prefix, s->sysv_start_priority);
1350 if (s->sysv_runlevels)
1351 fprintf(f, "%sSysVRunLevels: %s\n",
1352 prefix, s->sysv_runlevels);
1355 if (s->fsck_passno > 0)
1357 "%sFsckPassNo: %i\n",
1358 prefix, s->fsck_passno);
1361 fprintf(f, "%sStatus Text: %s\n",
1362 prefix, s->status_text);
1365 static int service_load_pid_file(Service *s, bool may_warn) {
1366 char _cleanup_free_ *k = NULL;
1375 r = read_one_line_file(s->pid_file, &k);
1378 log_info_unit(UNIT(s)->id,
1379 "PID file %s not readable (yet?) after %s.",
1380 s->pid_file, service_state_to_string(s->state));
1384 r = parse_pid(k, &pid);
1387 log_info_unit(UNIT(s)->id,
1388 "Failed to read PID from file %s: %s",
1389 s->pid_file, strerror(-r));
1393 if (kill(pid, 0) < 0 && errno != EPERM) {
1395 log_info_unit(UNIT(s)->id,
1396 "PID %lu read from file %s does not exist.",
1397 (unsigned long) pid, s->pid_file);
1401 if (s->main_pid_known) {
1402 if (pid == s->main_pid)
1405 log_debug_unit(UNIT(s)->id,
1406 "Main PID changing: %lu -> %lu",
1407 (unsigned long) s->main_pid, (unsigned long) pid);
1408 service_unwatch_main_pid(s);
1409 s->main_pid_known = false;
1411 log_debug_unit(UNIT(s)->id,
1412 "Main PID loaded: %lu", (unsigned long) pid);
1414 r = service_set_main_pid(s, pid);
1418 r = unit_watch_pid(UNIT(s), pid);
1420 /* FIXME: we need to do something here */
1421 log_warning_unit(UNIT(s)->id,
1422 "Failed to watch PID %lu from service %s",
1423 (unsigned long) pid, UNIT(s)->id);
1430 static int service_search_main_pid(Service *s) {
1436 /* If we know it anyway, don't ever fallback to unreliable
1438 if (s->main_pid_known)
1441 if (!s->guess_main_pid)
1444 assert(s->main_pid <= 0);
1446 pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings);
1450 log_debug_unit(UNIT(s)->id,
1451 "Main PID guessed: %lu", (unsigned long) pid);
1452 r = service_set_main_pid(s, pid);
1456 r = unit_watch_pid(UNIT(s), pid);
1458 /* FIXME: we need to do something here */
1464 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1470 /* Notifies all our sockets when we die */
1472 if (s->socket_fd >= 0)
1475 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1476 if (u->type == UNIT_SOCKET)
1477 socket_notify_service_dead(SOCKET(u), failed_permanent);
1482 static void service_set_state(Service *s, ServiceState state) {
1483 ServiceState old_state;
1484 const UnitActiveState *table;
1487 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1489 old_state = s->state;
1492 service_unwatch_pid_file(s);
1494 if (state != SERVICE_START_PRE &&
1495 state != SERVICE_START &&
1496 state != SERVICE_START_POST &&
1497 state != SERVICE_RELOAD &&
1498 state != SERVICE_STOP &&
1499 state != SERVICE_STOP_SIGTERM &&
1500 state != SERVICE_STOP_SIGKILL &&
1501 state != SERVICE_STOP_POST &&
1502 state != SERVICE_FINAL_SIGTERM &&
1503 state != SERVICE_FINAL_SIGKILL &&
1504 state != SERVICE_AUTO_RESTART)
1505 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1507 if (state != SERVICE_START &&
1508 state != SERVICE_START_POST &&
1509 state != SERVICE_RUNNING &&
1510 state != SERVICE_RELOAD &&
1511 state != SERVICE_STOP &&
1512 state != SERVICE_STOP_SIGTERM &&
1513 state != SERVICE_STOP_SIGKILL) {
1514 service_unwatch_main_pid(s);
1515 s->main_command = NULL;
1518 if (state != SERVICE_START_PRE &&
1519 state != SERVICE_START &&
1520 state != SERVICE_START_POST &&
1521 state != SERVICE_RELOAD &&
1522 state != SERVICE_STOP &&
1523 state != SERVICE_STOP_SIGTERM &&
1524 state != SERVICE_STOP_SIGKILL &&
1525 state != SERVICE_STOP_POST &&
1526 state != SERVICE_FINAL_SIGTERM &&
1527 state != SERVICE_FINAL_SIGKILL) {
1528 service_unwatch_control_pid(s);
1529 s->control_command = NULL;
1530 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1533 if (state == SERVICE_FAILED)
1534 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1536 if (state == SERVICE_DEAD ||
1537 state == SERVICE_STOP ||
1538 state == SERVICE_STOP_SIGTERM ||
1539 state == SERVICE_STOP_SIGKILL ||
1540 state == SERVICE_STOP_POST ||
1541 state == SERVICE_FINAL_SIGTERM ||
1542 state == SERVICE_FINAL_SIGKILL ||
1543 state == SERVICE_AUTO_RESTART)
1544 service_notify_sockets_dead(s, false);
1546 if (state != SERVICE_START_PRE &&
1547 state != SERVICE_START &&
1548 state != SERVICE_START_POST &&
1549 state != SERVICE_RUNNING &&
1550 state != SERVICE_RELOAD &&
1551 state != SERVICE_STOP &&
1552 state != SERVICE_STOP_SIGTERM &&
1553 state != SERVICE_STOP_SIGKILL &&
1554 state != SERVICE_STOP_POST &&
1555 state != SERVICE_FINAL_SIGTERM &&
1556 state != SERVICE_FINAL_SIGKILL &&
1557 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1558 service_close_socket_fd(s);
1559 service_connection_unref(s);
1562 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1563 service_stop_watchdog(s);
1565 /* For the inactive states unit_notify() will trim the cgroup,
1566 * but for exit we have to do that ourselves... */
1567 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1568 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1570 if (old_state != state)
1571 log_debug_unit(UNIT(s)->id,
1572 "%s changed %s -> %s", UNIT(s)->id,
1573 service_state_to_string(old_state),
1574 service_state_to_string(state));
1576 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1577 s->reload_result = SERVICE_SUCCESS;
1580 static int service_coldplug(Unit *u) {
1581 Service *s = SERVICE(u);
1585 assert(s->state == SERVICE_DEAD);
1587 if (s->deserialized_state != s->state) {
1589 if (s->deserialized_state == SERVICE_START_PRE ||
1590 s->deserialized_state == SERVICE_START ||
1591 s->deserialized_state == SERVICE_START_POST ||
1592 s->deserialized_state == SERVICE_RELOAD ||
1593 s->deserialized_state == SERVICE_STOP ||
1594 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1595 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1596 s->deserialized_state == SERVICE_STOP_POST ||
1597 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1598 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1599 s->deserialized_state == SERVICE_AUTO_RESTART) {
1600 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1603 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1605 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1611 if ((s->deserialized_state == SERVICE_START &&
1612 (s->type == SERVICE_FORKING ||
1613 s->type == SERVICE_DBUS ||
1614 s->type == SERVICE_ONESHOT ||
1615 s->type == SERVICE_NOTIFY)) ||
1616 s->deserialized_state == SERVICE_START_POST ||
1617 s->deserialized_state == SERVICE_RUNNING ||
1618 s->deserialized_state == SERVICE_RELOAD ||
1619 s->deserialized_state == SERVICE_STOP ||
1620 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1621 s->deserialized_state == SERVICE_STOP_SIGKILL)
1622 if (s->main_pid > 0) {
1623 r = unit_watch_pid(UNIT(s), s->main_pid);
1628 if (s->deserialized_state == SERVICE_START_PRE ||
1629 s->deserialized_state == SERVICE_START ||
1630 s->deserialized_state == SERVICE_START_POST ||
1631 s->deserialized_state == SERVICE_RELOAD ||
1632 s->deserialized_state == SERVICE_STOP ||
1633 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1634 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1635 s->deserialized_state == SERVICE_STOP_POST ||
1636 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1637 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1638 if (s->control_pid > 0) {
1639 r = unit_watch_pid(UNIT(s), s->control_pid);
1644 if (s->deserialized_state == SERVICE_START_POST ||
1645 s->deserialized_state == SERVICE_RUNNING)
1646 service_handle_watchdog(s);
1648 service_set_state(s, s->deserialized_state);
1653 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1657 unsigned rn_fds = 0;
1664 if (s->socket_fd >= 0)
1667 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1672 if (u->type != UNIT_SOCKET)
1677 r = socket_collect_fds(sock, &cfds, &cn_fds);
1690 t = new(int, rn_fds+cn_fds);
1697 memcpy(t, rfds, rn_fds * sizeof(int));
1698 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1703 rn_fds = rn_fds+cn_fds;
1718 static int service_spawn(
1723 bool apply_permissions,
1725 bool apply_tty_stdin,
1726 bool set_notify_socket,
1733 int _cleanup_free_ *fdsbuf = NULL;
1734 unsigned n_fds = 0, n_env = 0;
1735 char _cleanup_strv_free_
1736 **argv = NULL, **final_env = NULL, **our_env = NULL;
1743 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1744 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1745 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1747 if (s->socket_fd >= 0) {
1748 fds = &s->socket_fd;
1751 r = service_collect_fds(s, &fdsbuf, &n_fds);
1759 if (timeout && s->timeout_start_usec) {
1760 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1761 s->timeout_start_usec, &s->timer_watch);
1765 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1767 argv = unit_full_printf_strv(UNIT(s), c->argv);
1773 our_env = new0(char*, 5);
1779 if (set_notify_socket)
1780 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1785 if (s->main_pid > 0)
1786 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1791 if (s->watchdog_usec > 0)
1792 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1797 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1798 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1803 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1817 UNIT(s)->manager->confirm_spawn,
1818 UNIT(s)->cgroup_bondings,
1819 UNIT(s)->cgroup_attributes,
1820 is_control ? "control" : NULL,
1822 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1827 r = unit_watch_pid(UNIT(s), pid);
1829 /* FIXME: we need to do something here */
1838 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1843 static int main_pid_good(Service *s) {
1846 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1849 /* If we know the pid file, then lets just check if it is
1851 if (s->main_pid_known) {
1853 /* If it's an alien child let's check if it is still
1855 if (s->main_pid_alien)
1856 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1858 /* .. otherwise assume we'll get a SIGCHLD for it,
1859 * which we really should wait for to collect exit
1860 * status and code */
1861 return s->main_pid > 0;
1864 /* We don't know the pid */
1868 static int control_pid_good(Service *s) {
1871 return s->control_pid > 0;
1874 static int cgroup_good(Service *s) {
1879 r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
1886 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1890 if (f != SERVICE_SUCCESS)
1893 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1895 if (allow_restart &&
1896 !s->forbid_restart &&
1897 (s->restart == SERVICE_RESTART_ALWAYS ||
1898 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1899 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1900 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1901 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1902 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1903 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1904 (s->result != SERVICE_FAILURE_SIGNAL ||
1905 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1908 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1912 service_set_state(s, SERVICE_AUTO_RESTART);
1915 s->forbid_restart = false;
1917 /* we want fresh tmpdirs in case service is started again immediately */
1918 exec_context_tmp_dirs_done(&s->exec_context);
1923 log_warning_unit(UNIT(s)->id,
1924 "%s failed to run install restart timer: %s",
1925 UNIT(s)->id, strerror(-r));
1926 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1929 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1931 static void service_enter_stop_post(Service *s, ServiceResult f) {
1935 if (f != SERVICE_SUCCESS)
1938 service_unwatch_control_pid(s);
1940 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1941 if (s->control_command) {
1942 s->control_command_id = SERVICE_EXEC_STOP_POST;
1944 r = service_spawn(s,
1948 !s->permissions_start_only,
1949 !s->root_directory_start_only,
1958 service_set_state(s, SERVICE_STOP_POST);
1960 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1965 log_warning_unit(UNIT(s)->id,
1966 "%s failed to run 'stop-post' task: %s",
1967 UNIT(s)->id, strerror(-r));
1968 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1971 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1976 if (f != SERVICE_SUCCESS)
1979 r = unit_kill_context(
1982 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
1990 if (s->timeout_stop_usec > 0) {
1991 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1992 s->timeout_stop_usec, &s->timer_watch);
1997 service_set_state(s, state);
1998 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1999 service_enter_stop_post(s, SERVICE_SUCCESS);
2001 service_enter_dead(s, SERVICE_SUCCESS, true);
2006 log_warning_unit(UNIT(s)->id,
2007 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2009 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2010 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2012 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2015 static void service_enter_stop(Service *s, ServiceResult f) {
2020 if (f != SERVICE_SUCCESS)
2023 service_unwatch_control_pid(s);
2025 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2026 if (s->control_command) {
2027 s->control_command_id = SERVICE_EXEC_STOP;
2029 r = service_spawn(s,
2033 !s->permissions_start_only,
2034 !s->root_directory_start_only,
2042 service_set_state(s, SERVICE_STOP);
2044 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2049 log_warning_unit(UNIT(s)->id,
2050 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2051 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2054 static void service_enter_running(Service *s, ServiceResult f) {
2055 int main_pid_ok, cgroup_ok;
2058 if (f != SERVICE_SUCCESS)
2061 main_pid_ok = main_pid_good(s);
2062 cgroup_ok = cgroup_good(s);
2064 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2065 (s->bus_name_good || s->type != SERVICE_DBUS))
2066 service_set_state(s, SERVICE_RUNNING);
2067 else if (s->remain_after_exit)
2068 service_set_state(s, SERVICE_EXITED);
2070 service_enter_stop(s, SERVICE_SUCCESS);
2073 static void service_enter_start_post(Service *s) {
2077 service_unwatch_control_pid(s);
2079 if (s->watchdog_usec > 0)
2080 service_reset_watchdog(s);
2082 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2083 if (s->control_command) {
2084 s->control_command_id = SERVICE_EXEC_START_POST;
2086 r = service_spawn(s,
2090 !s->permissions_start_only,
2091 !s->root_directory_start_only,
2099 service_set_state(s, SERVICE_START_POST);
2101 service_enter_running(s, SERVICE_SUCCESS);
2106 log_warning_unit(UNIT(s)->id,
2107 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2108 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2111 static void service_enter_start(Service *s) {
2118 assert(s->exec_command[SERVICE_EXEC_START]);
2119 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2121 if (s->type == SERVICE_FORKING)
2122 service_unwatch_control_pid(s);
2124 service_unwatch_main_pid(s);
2126 /* We want to ensure that nobody leaks processes from
2127 * START_PRE here, so let's go on a killing spree, People
2128 * should not spawn long running processes from START_PRE. */
2129 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2131 if (s->type == SERVICE_FORKING) {
2132 s->control_command_id = SERVICE_EXEC_START;
2133 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2135 s->main_command = NULL;
2137 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2138 s->control_command = NULL;
2140 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2143 r = service_spawn(s,
2145 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2146 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2151 s->notify_access != NOTIFY_NONE,
2157 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2158 /* For simple services we immediately start
2159 * the START_POST binaries. */
2161 service_set_main_pid(s, pid);
2162 service_enter_start_post(s);
2164 } else if (s->type == SERVICE_FORKING) {
2166 /* For forking services we wait until the start
2167 * process exited. */
2169 s->control_pid = pid;
2170 service_set_state(s, SERVICE_START);
2172 } else if (s->type == SERVICE_ONESHOT ||
2173 s->type == SERVICE_DBUS ||
2174 s->type == SERVICE_NOTIFY) {
2176 /* For oneshot services we wait until the start
2177 * process exited, too, but it is our main process. */
2179 /* For D-Bus services we know the main pid right away,
2180 * but wait for the bus name to appear on the
2181 * bus. Notify services are similar. */
2183 service_set_main_pid(s, pid);
2184 service_set_state(s, SERVICE_START);
2186 assert_not_reached("Unknown service type");
2191 log_warning_unit(UNIT(s)->id,
2192 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2193 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2196 static void service_enter_start_pre(Service *s) {
2201 service_unwatch_control_pid(s);
2203 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2204 if (s->control_command) {
2206 /* Before we start anything, let's clear up what might
2207 * be left from previous runs. */
2208 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
2209 true,true, NULL, "control");
2211 s->control_command_id = SERVICE_EXEC_START_PRE;
2213 r = service_spawn(s,
2217 !s->permissions_start_only,
2218 !s->root_directory_start_only,
2226 service_set_state(s, SERVICE_START_PRE);
2228 service_enter_start(s);
2233 log_warning_unit(UNIT(s)->id,
2234 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2235 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2238 static void service_enter_restart(Service *s) {
2243 dbus_error_init(&error);
2245 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2246 /* Don't restart things if we are going down anyway */
2247 log_info_unit(UNIT(s)->id,
2248 "Stop job pending for unit, delaying automatic restart.");
2250 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2257 /* Any units that are bound to this service must also be
2258 * restarted. We use JOB_RESTART (instead of the more obvious
2259 * JOB_START) here so that those dependency jobs will be added
2261 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2265 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2266 * it will be canceled as part of the service_stop() call that
2267 * is executed as part of JOB_RESTART. */
2269 log_debug_unit(UNIT(s)->id,
2270 "%s scheduled restart job.", UNIT(s)->id);
2274 log_warning_unit(UNIT(s)->id,
2275 "%s failed to schedule restart job: %s",
2276 UNIT(s)->id, bus_error(&error, -r));
2277 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2279 dbus_error_free(&error);
2282 static void service_enter_reload(Service *s) {
2287 service_unwatch_control_pid(s);
2289 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2290 if (s->control_command) {
2291 s->control_command_id = SERVICE_EXEC_RELOAD;
2293 r = service_spawn(s,
2297 !s->permissions_start_only,
2298 !s->root_directory_start_only,
2306 service_set_state(s, SERVICE_RELOAD);
2308 service_enter_running(s, SERVICE_SUCCESS);
2313 log_warning_unit(UNIT(s)->id,
2314 "%s failed to run 'reload' task: %s",
2315 UNIT(s)->id, strerror(-r));
2316 s->reload_result = SERVICE_FAILURE_RESOURCES;
2317 service_enter_running(s, SERVICE_SUCCESS);
2320 static void service_run_next_control(Service *s) {
2324 assert(s->control_command);
2325 assert(s->control_command->command_next);
2327 assert(s->control_command_id != SERVICE_EXEC_START);
2329 s->control_command = s->control_command->command_next;
2330 service_unwatch_control_pid(s);
2332 r = service_spawn(s,
2336 !s->permissions_start_only,
2337 !s->root_directory_start_only,
2338 s->control_command_id == SERVICE_EXEC_START_PRE ||
2339 s->control_command_id == SERVICE_EXEC_STOP_POST,
2349 log_warning_unit(UNIT(s)->id,
2350 "%s failed to run next control task: %s",
2351 UNIT(s)->id, strerror(-r));
2353 if (s->state == SERVICE_START_PRE)
2354 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2355 else if (s->state == SERVICE_STOP)
2356 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2357 else if (s->state == SERVICE_STOP_POST)
2358 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2359 else if (s->state == SERVICE_RELOAD) {
2360 s->reload_result = SERVICE_FAILURE_RESOURCES;
2361 service_enter_running(s, SERVICE_SUCCESS);
2363 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2366 static void service_run_next_main(Service *s) {
2371 assert(s->main_command);
2372 assert(s->main_command->command_next);
2373 assert(s->type == SERVICE_ONESHOT);
2375 s->main_command = s->main_command->command_next;
2376 service_unwatch_main_pid(s);
2378 r = service_spawn(s,
2385 s->notify_access != NOTIFY_NONE,
2391 service_set_main_pid(s, pid);
2396 log_warning_unit(UNIT(s)->id,
2397 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2398 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2401 static int service_start_limit_test(Service *s) {
2404 if (ratelimit_test(&s->start_limit))
2407 switch (s->start_limit_action) {
2409 case SERVICE_START_LIMIT_NONE:
2410 log_warning_unit(UNIT(s)->id,
2411 "%s start request repeated too quickly, refusing to start.",
2415 case SERVICE_START_LIMIT_REBOOT: {
2419 dbus_error_init(&error);
2421 log_warning_unit(UNIT(s)->id,
2422 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2424 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2425 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2426 true, &error, NULL);
2428 log_error_unit(UNIT(s)->id,
2429 "Failed to reboot: %s.", bus_error(&error, r));
2430 dbus_error_free(&error);
2436 case SERVICE_START_LIMIT_REBOOT_FORCE:
2437 log_warning_unit(UNIT(s)->id,
2438 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2439 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2442 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2443 log_warning_unit(UNIT(s)->id,
2444 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2446 reboot(RB_AUTOBOOT);
2450 log_error_unit(UNIT(s)->id,
2451 "start limit action=%i", s->start_limit_action);
2452 assert_not_reached("Unknown StartLimitAction.");
2458 static int service_start(Unit *u) {
2459 Service *s = SERVICE(u);
2464 /* We cannot fulfill this request right now, try again later
2466 if (s->state == SERVICE_STOP ||
2467 s->state == SERVICE_STOP_SIGTERM ||
2468 s->state == SERVICE_STOP_SIGKILL ||
2469 s->state == SERVICE_STOP_POST ||
2470 s->state == SERVICE_FINAL_SIGTERM ||
2471 s->state == SERVICE_FINAL_SIGKILL)
2474 /* Already on it! */
2475 if (s->state == SERVICE_START_PRE ||
2476 s->state == SERVICE_START ||
2477 s->state == SERVICE_START_POST)
2480 /* A service that will be restarted must be stopped first to
2481 * trigger BindsTo and/or OnFailure dependencies. If a user
2482 * does not want to wait for the holdoff time to elapse, the
2483 * service should be manually restarted, not started. We
2484 * simply return EAGAIN here, so that any start jobs stay
2485 * queued, and assume that the auto restart timer will
2486 * eventually trigger the restart. */
2487 if (s->state == SERVICE_AUTO_RESTART)
2490 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2492 /* Make sure we don't enter a busy loop of some kind. */
2493 r = service_start_limit_test(s);
2495 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2499 s->result = SERVICE_SUCCESS;
2500 s->reload_result = SERVICE_SUCCESS;
2501 s->main_pid_known = false;
2502 s->main_pid_alien = false;
2503 s->forbid_restart = false;
2505 service_enter_start_pre(s);
2509 static int service_stop(Unit *u) {
2510 Service *s = SERVICE(u);
2514 /* Don't create restart jobs from here. */
2515 s->forbid_restart = true;
2518 if (s->state == SERVICE_STOP ||
2519 s->state == SERVICE_STOP_SIGTERM ||
2520 s->state == SERVICE_STOP_SIGKILL ||
2521 s->state == SERVICE_STOP_POST ||
2522 s->state == SERVICE_FINAL_SIGTERM ||
2523 s->state == SERVICE_FINAL_SIGKILL)
2526 /* A restart will be scheduled or is in progress. */
2527 if (s->state == SERVICE_AUTO_RESTART) {
2528 service_set_state(s, SERVICE_DEAD);
2532 /* If there's already something running we go directly into
2534 if (s->state == SERVICE_START_PRE ||
2535 s->state == SERVICE_START ||
2536 s->state == SERVICE_START_POST ||
2537 s->state == SERVICE_RELOAD) {
2538 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2542 assert(s->state == SERVICE_RUNNING ||
2543 s->state == SERVICE_EXITED);
2545 service_enter_stop(s, SERVICE_SUCCESS);
2549 static int service_reload(Unit *u) {
2550 Service *s = SERVICE(u);
2554 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2556 service_enter_reload(s);
2560 static bool service_can_reload(Unit *u) {
2561 Service *s = SERVICE(u);
2565 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2568 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2569 Service *s = SERVICE(u);
2575 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2576 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2577 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2579 if (s->control_pid > 0)
2580 unit_serialize_item_format(u, f, "control-pid", "%lu",
2581 (unsigned long) s->control_pid);
2583 if (s->main_pid_known && s->main_pid > 0)
2584 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2586 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2589 unit_serialize_item(u, f, "status-text", s->status_text);
2591 /* FIXME: There's a minor uncleanliness here: if there are
2592 * multiple commands attached here, we will start from the
2593 * first one again */
2594 if (s->control_command_id >= 0)
2595 unit_serialize_item(u, f, "control-command",
2596 service_exec_command_to_string(s->control_command_id));
2598 if (s->socket_fd >= 0) {
2601 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2604 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2607 if (s->main_exec_status.pid > 0) {
2608 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2609 (unsigned long) s->main_exec_status.pid);
2610 dual_timestamp_serialize(f, "main-exec-status-start",
2611 &s->main_exec_status.start_timestamp);
2612 dual_timestamp_serialize(f, "main-exec-status-exit",
2613 &s->main_exec_status.exit_timestamp);
2615 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2616 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2617 s->main_exec_status.code);
2618 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2619 s->main_exec_status.status);
2622 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2623 dual_timestamp_serialize(f, "watchdog-timestamp",
2624 &s->watchdog_timestamp);
2626 if (s->exec_context.tmp_dir)
2627 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2629 if (s->exec_context.var_tmp_dir)
2630 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
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);
2750 else if (streq(key, "tmp-dir")) {
2757 s->exec_context.tmp_dir = t;
2758 } else if (streq(key, "var-tmp-dir")) {
2765 s->exec_context.var_tmp_dir = t;
2767 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2772 static UnitActiveState service_active_state(Unit *u) {
2773 const UnitActiveState *table;
2777 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2779 return table[SERVICE(u)->state];
2782 static const char *service_sub_state_to_string(Unit *u) {
2785 return service_state_to_string(SERVICE(u)->state);
2788 static bool service_check_gc(Unit *u) {
2789 Service *s = SERVICE(u);
2793 /* Never clean up services that still have a process around,
2794 * even if the service is formally dead. */
2795 if (cgroup_good(s) > 0 ||
2796 main_pid_good(s) > 0 ||
2797 control_pid_good(s) > 0)
2800 #ifdef HAVE_SYSV_COMPAT
2808 static bool service_check_snapshot(Unit *u) {
2809 Service *s = SERVICE(u);
2813 return !s->got_socket_fd;
2816 static int service_retry_pid_file(Service *s) {
2819 assert(s->pid_file);
2820 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2822 r = service_load_pid_file(s, false);
2826 service_unwatch_pid_file(s);
2828 service_enter_running(s, SERVICE_SUCCESS);
2832 static int service_watch_pid_file(Service *s) {
2835 log_debug_unit(UNIT(s)->id,
2836 "Setting watch for %s's PID file %s",
2837 UNIT(s)->id, s->pid_file_pathspec->path);
2838 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2842 /* the pidfile might have appeared just before we set the watch */
2843 log_debug_unit(UNIT(s)->id,
2844 "Trying to read %s's PID file %s in case it changed",
2845 UNIT(s)->id, s->pid_file_pathspec->path);
2846 service_retry_pid_file(s);
2850 log_error_unit(UNIT(s)->id,
2851 "Failed to set a watch for %s's PID file %s: %s",
2852 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2853 service_unwatch_pid_file(s);
2857 static int service_demand_pid_file(Service *s) {
2860 assert(s->pid_file);
2861 assert(!s->pid_file_pathspec);
2863 ps = new0(PathSpec, 1);
2867 ps->path = strdup(s->pid_file);
2873 path_kill_slashes(ps->path);
2875 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2876 * keep their PID file open all the time. */
2877 ps->type = PATH_MODIFIED;
2878 ps->inotify_fd = -1;
2880 s->pid_file_pathspec = ps;
2882 return service_watch_pid_file(s);
2885 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2886 Service *s = SERVICE(u);
2890 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2891 assert(s->pid_file_pathspec);
2892 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2894 log_debug_unit(u->id, "inotify event for %s", u->id);
2896 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2899 if (service_retry_pid_file(s) == 0)
2902 if (service_watch_pid_file(s) < 0)
2907 service_unwatch_pid_file(s);
2908 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2911 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2912 Service *s = SERVICE(u);
2918 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2919 is_clean_exit_lsb(code, status, &s->success_status))
2920 f = SERVICE_SUCCESS;
2921 else if (code == CLD_EXITED)
2922 f = SERVICE_FAILURE_EXIT_CODE;
2923 else if (code == CLD_KILLED)
2924 f = SERVICE_FAILURE_SIGNAL;
2925 else if (code == CLD_DUMPED)
2926 f = SERVICE_FAILURE_CORE_DUMP;
2928 assert_not_reached("Unknown code");
2930 if (s->main_pid == pid) {
2931 /* Forking services may occasionally move to a new PID.
2932 * As long as they update the PID file before exiting the old
2933 * PID, they're fine. */
2934 if (service_load_pid_file(s, false) == 0)
2938 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2940 if (s->main_command) {
2941 /* If this is not a forking service than the
2942 * main process got started and hence we copy
2943 * the exit status so that it is recorded both
2944 * as main and as control process exit
2947 s->main_command->exec_status = s->main_exec_status;
2949 if (s->main_command->ignore)
2950 f = SERVICE_SUCCESS;
2951 } else if (s->exec_command[SERVICE_EXEC_START]) {
2953 /* If this is a forked process, then we should
2954 * ignore the return value if this was
2955 * configured for the starter process */
2957 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2958 f = SERVICE_SUCCESS;
2961 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2963 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2964 u->id, sigchld_code_to_string(code), status,
2965 strna(code == CLD_EXITED
2966 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2967 : signal_to_string(status)),
2968 "EXIT_CODE=%s", sigchld_code_to_string(code),
2969 "EXIT_STATUS=%i", status,
2972 if (f != SERVICE_SUCCESS)
2975 if (s->main_command &&
2976 s->main_command->command_next &&
2977 f == SERVICE_SUCCESS) {
2979 /* There is another command to *
2980 * execute, so let's do that. */
2982 log_debug_unit(u->id,
2983 "%s running next main command for state %s",
2984 u->id, service_state_to_string(s->state));
2985 service_run_next_main(s);
2989 /* The service exited, so the service is officially
2991 s->main_command = NULL;
2995 case SERVICE_START_POST:
2996 case SERVICE_RELOAD:
2998 /* Need to wait until the operation is
3003 if (s->type == SERVICE_ONESHOT) {
3004 /* This was our main goal, so let's go on */
3005 if (f == SERVICE_SUCCESS)
3006 service_enter_start_post(s);
3008 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3014 case SERVICE_RUNNING:
3015 service_enter_running(s, f);
3018 case SERVICE_STOP_SIGTERM:
3019 case SERVICE_STOP_SIGKILL:
3021 if (!control_pid_good(s))
3022 service_enter_stop_post(s, f);
3024 /* If there is still a control process, wait for that first */
3028 assert_not_reached("Uh, main process died at wrong time.");
3032 } else if (s->control_pid == pid) {
3036 if (s->control_command) {
3037 exec_status_exit(&s->control_command->exec_status,
3038 &s->exec_context, pid, code, status);
3040 if (s->control_command->ignore)
3041 f = SERVICE_SUCCESS;
3044 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3045 "%s: control process exited, code=%s status=%i",
3046 u->id, sigchld_code_to_string(code), status);
3048 if (f != SERVICE_SUCCESS)
3051 /* Immediately get rid of the cgroup, so that the
3052 * kernel doesn't delay the cgroup empty messages for
3053 * the service cgroup any longer than necessary */
3054 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
3055 true, true, NULL, "control");
3057 if (s->control_command &&
3058 s->control_command->command_next &&
3059 f == SERVICE_SUCCESS) {
3061 /* There is another command to *
3062 * execute, so let's do that. */
3064 log_debug_unit(u->id,
3065 "%s running next control command for state %s",
3066 u->id, service_state_to_string(s->state));
3067 service_run_next_control(s);
3070 /* No further commands for this step, so let's
3071 * figure out what to do next */
3073 s->control_command = NULL;
3074 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3076 log_debug_unit(u->id,
3077 "%s got final SIGCHLD for state %s",
3078 u->id, service_state_to_string(s->state));
3082 case SERVICE_START_PRE:
3083 if (f == SERVICE_SUCCESS)
3084 service_enter_start(s);
3086 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3090 if (s->type != SERVICE_FORKING)
3091 /* Maybe spurious event due to a reload that changed the type? */
3094 if (f != SERVICE_SUCCESS) {
3095 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3100 bool has_start_post;
3103 /* Let's try to load the pid file here if we can.
3104 * The PID file might actually be created by a START_POST
3105 * script. In that case don't worry if the loading fails. */
3107 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3108 r = service_load_pid_file(s, !has_start_post);
3109 if (!has_start_post && r < 0) {
3110 r = service_demand_pid_file(s);
3111 if (r < 0 || !cgroup_good(s))
3112 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3116 service_search_main_pid(s);
3118 service_enter_start_post(s);
3121 case SERVICE_START_POST:
3122 if (f != SERVICE_SUCCESS) {
3123 service_enter_stop(s, f);
3130 r = service_load_pid_file(s, true);
3132 r = service_demand_pid_file(s);
3133 if (r < 0 || !cgroup_good(s))
3134 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3138 service_search_main_pid(s);
3140 service_enter_running(s, SERVICE_SUCCESS);
3143 case SERVICE_RELOAD:
3144 if (f == SERVICE_SUCCESS) {
3145 service_load_pid_file(s, true);
3146 service_search_main_pid(s);
3149 s->reload_result = f;
3150 service_enter_running(s, SERVICE_SUCCESS);
3154 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3157 case SERVICE_STOP_SIGTERM:
3158 case SERVICE_STOP_SIGKILL:
3159 if (main_pid_good(s) <= 0)
3160 service_enter_stop_post(s, f);
3162 /* If there is still a service
3163 * process around, wait until
3164 * that one quit, too */
3167 case SERVICE_STOP_POST:
3168 case SERVICE_FINAL_SIGTERM:
3169 case SERVICE_FINAL_SIGKILL:
3170 service_enter_dead(s, f, true);
3174 assert_not_reached("Uh, control process died at wrong time.");
3179 /* Notify clients about changed exit status */
3180 unit_add_to_dbus_queue(u);
3183 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3184 Service *s = SERVICE(u);
3187 assert(elapsed == 1);
3189 if (w == &s->watchdog_watch) {
3190 service_handle_watchdog(s);
3194 assert(w == &s->timer_watch);
3198 case SERVICE_START_PRE:
3200 log_warning_unit(u->id,
3201 "%s operation timed out. Terminating.", u->id);
3202 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3205 case SERVICE_START_POST:
3206 log_warning_unit(u->id,
3207 "%s operation timed out. Stopping.", u->id);
3208 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3211 case SERVICE_RELOAD:
3212 log_warning_unit(u->id,
3213 "%s operation timed out. Stopping.", u->id);
3214 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3215 service_enter_running(s, SERVICE_SUCCESS);
3219 log_warning_unit(u->id,
3220 "%s stopping timed out. Terminating.", u->id);
3221 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3224 case SERVICE_STOP_SIGTERM:
3225 if (s->kill_context.send_sigkill) {
3226 log_warning_unit(u->id,
3227 "%s stopping timed out. Killing.", u->id);
3228 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3230 log_warning_unit(u->id,
3231 "%s stopping timed out. Skipping SIGKILL.", u->id);
3232 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3237 case SERVICE_STOP_SIGKILL:
3238 /* Uh, we sent a SIGKILL and it is still not gone?
3239 * Must be something we cannot kill, so let's just be
3240 * weirded out and continue */
3242 log_warning_unit(u->id,
3243 "%s still around after SIGKILL. Ignoring.", u->id);
3244 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3247 case SERVICE_STOP_POST:
3248 log_warning_unit(u->id,
3249 "%s stopping timed out (2). Terminating.", u->id);
3250 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3253 case SERVICE_FINAL_SIGTERM:
3254 if (s->kill_context.send_sigkill) {
3255 log_warning_unit(u->id,
3256 "%s stopping timed out (2). Killing.", u->id);
3257 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3259 log_warning_unit(u->id,
3260 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3262 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3267 case SERVICE_FINAL_SIGKILL:
3268 log_warning_unit(u->id,
3269 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3270 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3273 case SERVICE_AUTO_RESTART:
3274 log_info_unit(u->id,
3275 "%s holdoff time over, scheduling restart.", u->id);
3276 service_enter_restart(s);
3280 assert_not_reached("Timeout at wrong time.");
3284 static void service_cgroup_notify_event(Unit *u) {
3285 Service *s = SERVICE(u);
3289 log_debug_unit(u->id,
3290 "%s: cgroup is empty", u->id);
3294 /* Waiting for SIGCHLD is usually more interesting,
3295 * because it includes return codes/signals. Which is
3296 * why we ignore the cgroup events for most cases,
3297 * except when we don't know pid which to expect the
3301 case SERVICE_START_POST:
3302 /* If we were hoping for the daemon to write its PID file,
3303 * we can give up now. */
3304 if (s->pid_file_pathspec) {
3305 log_warning_unit(u->id,
3306 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3307 service_unwatch_pid_file(s);
3308 if (s->state == SERVICE_START)
3309 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3311 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3315 case SERVICE_RUNNING:
3316 /* service_enter_running() will figure out what to do */
3317 service_enter_running(s, SERVICE_SUCCESS);
3320 case SERVICE_STOP_SIGTERM:
3321 case SERVICE_STOP_SIGKILL:
3323 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3324 service_enter_stop_post(s, SERVICE_SUCCESS);
3328 case SERVICE_FINAL_SIGTERM:
3329 case SERVICE_FINAL_SIGKILL:
3330 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3331 service_enter_dead(s, SERVICE_SUCCESS, true);
3340 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3341 Service *s = SERVICE(u);
3346 if (s->notify_access == NOTIFY_NONE) {
3347 log_warning_unit(u->id,
3348 "%s: Got notification message from PID %lu, but reception is disabled.",
3349 u->id, (unsigned long) pid);
3353 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3354 log_warning_unit(u->id,
3355 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3356 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3360 log_debug_unit(u->id,
3361 "%s: Got message", u->id);
3363 /* Interpret MAINPID= */
3364 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3365 (s->state == SERVICE_START ||
3366 s->state == SERVICE_START_POST ||
3367 s->state == SERVICE_RUNNING ||
3368 s->state == SERVICE_RELOAD)) {
3370 if (parse_pid(e + 8, &pid) < 0)
3371 log_warning_unit(u->id,
3372 "Failed to parse notification message %s", e);
3374 log_debug_unit(u->id,
3375 "%s: got %s", u->id, e);
3376 service_set_main_pid(s, pid);
3380 /* Interpret READY= */
3381 if (s->type == SERVICE_NOTIFY &&
3382 s->state == SERVICE_START &&
3383 strv_find(tags, "READY=1")) {
3384 log_debug_unit(u->id,
3385 "%s: got READY=1", u->id);
3387 service_enter_start_post(s);
3390 /* Interpret STATUS= */
3391 e = strv_find_prefix(tags, "STATUS=");
3397 if (!utf8_is_valid(e+7)) {
3398 log_warning_unit(u->id,
3399 "Status message in notification is not UTF-8 clean.");
3405 log_error_unit(u->id,
3406 "Failed to allocate string.");
3410 log_debug_unit(u->id,
3411 "%s: got %s", u->id, e);
3413 free(s->status_text);
3416 free(s->status_text);
3417 s->status_text = NULL;
3421 if (strv_find(tags, "WATCHDOG=1")) {
3422 log_debug_unit(u->id,
3423 "%s: got WATCHDOG=1", u->id);
3424 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3425 service_reset_watchdog(s);
3428 /* Notify clients about changed status or main pid */
3429 unit_add_to_dbus_queue(u);
3432 #ifdef HAVE_SYSV_COMPAT
3434 static int service_enumerate(Manager *m) {
3437 DIR _cleanup_closedir_ *d = NULL;
3438 char _cleanup_free_ *path = NULL, *fpath = NULL, *name = NULL;
3439 Set *runlevel_services[ELEMENTSOF(rcnd_table)];
3440 Set _cleanup_set_free_ *shutdown_services = NULL;
3447 if (m->running_as != SYSTEMD_SYSTEM)
3450 zero(runlevel_services);
3452 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3453 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3457 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3468 if (errno != ENOENT)
3469 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3474 while ((de = readdir(d))) {
3477 if (ignore_file(de->d_name))
3480 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3483 if (strlen(de->d_name) < 4)
3486 a = undecchar(de->d_name[1]);
3487 b = undecchar(de->d_name[2]);
3493 fpath = strjoin(path, "/", de->d_name, NULL);
3499 if (access(fpath, X_OK) < 0) {
3501 if (errno != ENOENT)
3502 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3508 name = sysv_translate_name(de->d_name + 3);
3514 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3516 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3520 if (de->d_name[0] == 'S') {
3522 if (rcnd_table[i].type == RUNLEVEL_UP) {
3523 SERVICE(service)->sysv_start_priority_from_rcnd =
3524 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3526 SERVICE(service)->sysv_enabled = true;
3529 r = set_ensure_allocated(&runlevel_services[i],
3530 trivial_hash_func, trivial_compare_func);
3534 r = set_put(runlevel_services[i], service);
3538 } else if (de->d_name[0] == 'K' &&
3539 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3541 r = set_ensure_allocated(&shutdown_services,
3542 trivial_hash_func, trivial_compare_func);
3546 r = set_put(shutdown_services, service);
3553 /* Now we loaded all stubs and are aware of the lowest
3554 start-up priority for all services, not let's actually load
3555 the services, this will also tell us which services are
3556 actually native now */
3557 manager_dispatch_load_queue(m);
3559 /* If this is a native service, rely on native ways to pull in
3560 * a service, don't pull it in via sysv rcN.d links. */
3561 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3562 SET_FOREACH(service, runlevel_services[i], j) {
3563 service = unit_follow_merge(service);
3565 if (service->fragment_path)
3568 r = unit_add_two_dependencies_by_name_inverse(
3569 service, UNIT_AFTER, UNIT_WANTS,
3570 rcnd_table[i].target, NULL, true);
3575 /* We honour K links only for halt/reboot. For the normal
3576 * runlevels we assume the stop jobs will be implicitly added
3577 * by the core logic. Also, we don't really distinguish here
3578 * between the runlevels 0 and 6 and just add them to the
3579 * special shutdown target. */
3580 SET_FOREACH(service, shutdown_services, j) {
3581 service = unit_follow_merge(service);
3583 if (service->fragment_path)
3586 r = unit_add_two_dependencies_by_name(
3587 service, UNIT_BEFORE, UNIT_CONFLICTS,
3588 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3597 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3598 set_free(runlevel_services[i]);
3604 static void service_bus_name_owner_change(
3607 const char *old_owner,
3608 const char *new_owner) {
3610 Service *s = SERVICE(u);
3615 assert(streq(s->bus_name, name));
3616 assert(old_owner || new_owner);
3618 if (old_owner && new_owner)
3619 log_debug_unit(u->id,
3620 "%s's D-Bus name %s changed owner from %s to %s",
3621 u->id, name, old_owner, new_owner);
3623 log_debug_unit(u->id,
3624 "%s's D-Bus name %s no longer registered by %s",
3625 u->id, name, old_owner);
3627 log_debug_unit(u->id,
3628 "%s's D-Bus name %s now registered by %s",
3629 u->id, name, new_owner);
3631 s->bus_name_good = !!new_owner;
3633 if (s->type == SERVICE_DBUS) {
3635 /* service_enter_running() will figure out what to
3637 if (s->state == SERVICE_RUNNING)
3638 service_enter_running(s, SERVICE_SUCCESS);
3639 else if (s->state == SERVICE_START && new_owner)
3640 service_enter_start_post(s);
3642 } else if (new_owner &&
3644 (s->state == SERVICE_START ||
3645 s->state == SERVICE_START_POST ||
3646 s->state == SERVICE_RUNNING ||
3647 s->state == SERVICE_RELOAD)) {
3649 /* Try to acquire PID from bus service */
3650 log_debug_unit(u->id,
3651 "Trying to acquire PID from D-Bus name...");
3653 bus_query_pid(u->manager, name);
3657 static void service_bus_query_pid_done(
3662 Service *s = SERVICE(u);
3667 log_debug_unit(u->id,
3668 "%s's D-Bus name %s is now owned by process %u",
3669 u->id, name, (unsigned) pid);
3671 if (s->main_pid <= 0 &&
3672 (s->state == SERVICE_START ||
3673 s->state == SERVICE_START_POST ||
3674 s->state == SERVICE_RUNNING ||
3675 s->state == SERVICE_RELOAD))
3676 service_set_main_pid(s, pid);
3679 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3684 /* This is called by the socket code when instantiating a new
3685 * service for a stream socket and the socket needs to be
3688 if (UNIT(s)->load_state != UNIT_LOADED)
3691 if (s->socket_fd >= 0)
3694 if (s->state != SERVICE_DEAD)
3698 s->got_socket_fd = true;
3700 unit_ref_set(&s->accept_socket, UNIT(sock));
3702 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3705 static void service_reset_failed(Unit *u) {
3706 Service *s = SERVICE(u);
3710 if (s->state == SERVICE_FAILED)
3711 service_set_state(s, SERVICE_DEAD);
3713 s->result = SERVICE_SUCCESS;
3714 s->reload_result = SERVICE_SUCCESS;
3716 RATELIMIT_RESET(s->start_limit);
3719 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3720 Service *s = SERVICE(u);
3721 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3724 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3725 [SERVICE_DEAD] = "dead",
3726 [SERVICE_START_PRE] = "start-pre",
3727 [SERVICE_START] = "start",
3728 [SERVICE_START_POST] = "start-post",
3729 [SERVICE_RUNNING] = "running",
3730 [SERVICE_EXITED] = "exited",
3731 [SERVICE_RELOAD] = "reload",
3732 [SERVICE_STOP] = "stop",
3733 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3734 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3735 [SERVICE_STOP_POST] = "stop-post",
3736 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3737 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3738 [SERVICE_FAILED] = "failed",
3739 [SERVICE_AUTO_RESTART] = "auto-restart",
3742 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3744 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3745 [SERVICE_RESTART_NO] = "no",
3746 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3747 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3748 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3749 [SERVICE_RESTART_ALWAYS] = "always"
3752 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3754 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3755 [SERVICE_SIMPLE] = "simple",
3756 [SERVICE_FORKING] = "forking",
3757 [SERVICE_ONESHOT] = "oneshot",
3758 [SERVICE_DBUS] = "dbus",
3759 [SERVICE_NOTIFY] = "notify",
3760 [SERVICE_IDLE] = "idle"
3763 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3765 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3766 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3767 [SERVICE_EXEC_START] = "ExecStart",
3768 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3769 [SERVICE_EXEC_RELOAD] = "ExecReload",
3770 [SERVICE_EXEC_STOP] = "ExecStop",
3771 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3774 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3776 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3777 [NOTIFY_NONE] = "none",
3778 [NOTIFY_MAIN] = "main",
3779 [NOTIFY_ALL] = "all"
3782 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3784 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3785 [SERVICE_SUCCESS] = "success",
3786 [SERVICE_FAILURE_RESOURCES] = "resources",
3787 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3788 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3789 [SERVICE_FAILURE_SIGNAL] = "signal",
3790 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3791 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3792 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3795 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3797 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3798 [SERVICE_START_LIMIT_NONE] = "none",
3799 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3800 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3801 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3803 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3805 const UnitVTable service_vtable = {
3806 .object_size = sizeof(Service),
3813 .exec_context_offset = offsetof(Service, exec_context),
3814 .exec_section = "Service",
3816 .init = service_init,
3817 .done = service_done,
3818 .load = service_load,
3820 .coldplug = service_coldplug,
3822 .dump = service_dump,
3824 .start = service_start,
3825 .stop = service_stop,
3826 .reload = service_reload,
3828 .can_reload = service_can_reload,
3830 .kill = service_kill,
3832 .serialize = service_serialize,
3833 .deserialize_item = service_deserialize_item,
3835 .active_state = service_active_state,
3836 .sub_state_to_string = service_sub_state_to_string,
3838 .check_gc = service_check_gc,
3839 .check_snapshot = service_check_snapshot,
3841 .sigchld_event = service_sigchld_event,
3842 .timer_event = service_timer_event,
3843 .fd_event = service_fd_event,
3845 .reset_failed = service_reset_failed,
3847 .cgroup_notify_empty = service_cgroup_notify_event,
3848 .notify_message = service_notify_message,
3850 .bus_name_owner_change = service_bus_name_owner_change,
3851 .bus_query_pid_done = service_bus_query_pid_done,
3853 .bus_interface = "org.freedesktop.systemd1.Service",
3854 .bus_message_handler = bus_service_message_handler,
3855 .bus_invalidating_properties = bus_service_invalidating_properties,
3857 #ifdef HAVE_SYSV_COMPAT
3858 .enumerate = service_enumerate,
3860 .status_message_formats = {
3861 .starting_stopping = {
3862 [0] = "Starting %s...",
3863 [1] = "Stopping %s...",
3865 .finished_start_job = {
3866 [JOB_DONE] = "Started %s.",
3867 [JOB_FAILED] = "Failed to start %s.",
3868 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3869 [JOB_TIMEOUT] = "Timed out starting %s.",
3871 .finished_stop_job = {
3872 [JOB_DONE] = "Stopped %s.",
3873 [JOB_FAILED] = "Stopped (with error) %s.",
3874 [JOB_TIMEOUT] = "Timed out stopping %s.",