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 "dbus-common.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 _cleanup_free_ char *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 _cleanup_free_ char *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 */
1469 log_warning_unit(UNIT(s)->id,
1470 "Failed to watch PID %lu from service %s",
1471 (unsigned long) pid, UNIT(s)->id);
1477 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1483 /* Notifies all our sockets when we die */
1485 if (s->socket_fd >= 0)
1488 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1489 if (u->type == UNIT_SOCKET)
1490 socket_notify_service_dead(SOCKET(u), failed_permanent);
1495 static void service_set_state(Service *s, ServiceState state) {
1496 ServiceState old_state;
1497 const UnitActiveState *table;
1500 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1502 old_state = s->state;
1505 service_unwatch_pid_file(s);
1507 if (state != SERVICE_START_PRE &&
1508 state != SERVICE_START &&
1509 state != SERVICE_START_POST &&
1510 state != SERVICE_RELOAD &&
1511 state != SERVICE_STOP &&
1512 state != SERVICE_STOP_SIGTERM &&
1513 state != SERVICE_STOP_SIGKILL &&
1514 state != SERVICE_STOP_POST &&
1515 state != SERVICE_FINAL_SIGTERM &&
1516 state != SERVICE_FINAL_SIGKILL &&
1517 state != SERVICE_AUTO_RESTART)
1518 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1520 if (state != SERVICE_START &&
1521 state != SERVICE_START_POST &&
1522 state != SERVICE_RUNNING &&
1523 state != SERVICE_RELOAD &&
1524 state != SERVICE_STOP &&
1525 state != SERVICE_STOP_SIGTERM &&
1526 state != SERVICE_STOP_SIGKILL) {
1527 service_unwatch_main_pid(s);
1528 s->main_command = NULL;
1531 if (state != SERVICE_START_PRE &&
1532 state != SERVICE_START &&
1533 state != SERVICE_START_POST &&
1534 state != SERVICE_RELOAD &&
1535 state != SERVICE_STOP &&
1536 state != SERVICE_STOP_SIGTERM &&
1537 state != SERVICE_STOP_SIGKILL &&
1538 state != SERVICE_STOP_POST &&
1539 state != SERVICE_FINAL_SIGTERM &&
1540 state != SERVICE_FINAL_SIGKILL) {
1541 service_unwatch_control_pid(s);
1542 s->control_command = NULL;
1543 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1546 if (state == SERVICE_FAILED)
1547 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1549 if (state == SERVICE_DEAD ||
1550 state == SERVICE_STOP ||
1551 state == SERVICE_STOP_SIGTERM ||
1552 state == SERVICE_STOP_SIGKILL ||
1553 state == SERVICE_STOP_POST ||
1554 state == SERVICE_FINAL_SIGTERM ||
1555 state == SERVICE_FINAL_SIGKILL ||
1556 state == SERVICE_AUTO_RESTART)
1557 service_notify_sockets_dead(s, false);
1559 if (state != SERVICE_START_PRE &&
1560 state != SERVICE_START &&
1561 state != SERVICE_START_POST &&
1562 state != SERVICE_RUNNING &&
1563 state != SERVICE_RELOAD &&
1564 state != SERVICE_STOP &&
1565 state != SERVICE_STOP_SIGTERM &&
1566 state != SERVICE_STOP_SIGKILL &&
1567 state != SERVICE_STOP_POST &&
1568 state != SERVICE_FINAL_SIGTERM &&
1569 state != SERVICE_FINAL_SIGKILL &&
1570 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1571 service_close_socket_fd(s);
1572 service_connection_unref(s);
1575 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1576 service_stop_watchdog(s);
1578 /* For the inactive states unit_notify() will trim the cgroup,
1579 * but for exit we have to do that ourselves... */
1580 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1581 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1583 if (old_state != state)
1584 log_debug_unit(UNIT(s)->id,
1585 "%s changed %s -> %s", UNIT(s)->id,
1586 service_state_to_string(old_state),
1587 service_state_to_string(state));
1589 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1590 s->reload_result = SERVICE_SUCCESS;
1593 static int service_coldplug(Unit *u) {
1594 Service *s = SERVICE(u);
1598 assert(s->state == SERVICE_DEAD);
1600 if (s->deserialized_state != s->state) {
1602 if (s->deserialized_state == SERVICE_START_PRE ||
1603 s->deserialized_state == SERVICE_START ||
1604 s->deserialized_state == SERVICE_START_POST ||
1605 s->deserialized_state == SERVICE_RELOAD ||
1606 s->deserialized_state == SERVICE_STOP ||
1607 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1608 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1609 s->deserialized_state == SERVICE_STOP_POST ||
1610 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1611 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1612 s->deserialized_state == SERVICE_AUTO_RESTART) {
1613 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1616 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1618 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1624 if ((s->deserialized_state == SERVICE_START &&
1625 (s->type == SERVICE_FORKING ||
1626 s->type == SERVICE_DBUS ||
1627 s->type == SERVICE_ONESHOT ||
1628 s->type == SERVICE_NOTIFY)) ||
1629 s->deserialized_state == SERVICE_START_POST ||
1630 s->deserialized_state == SERVICE_RUNNING ||
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 if (s->main_pid > 0) {
1636 r = unit_watch_pid(UNIT(s), s->main_pid);
1641 if (s->deserialized_state == SERVICE_START_PRE ||
1642 s->deserialized_state == SERVICE_START ||
1643 s->deserialized_state == SERVICE_START_POST ||
1644 s->deserialized_state == SERVICE_RELOAD ||
1645 s->deserialized_state == SERVICE_STOP ||
1646 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1647 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1648 s->deserialized_state == SERVICE_STOP_POST ||
1649 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1650 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1651 if (s->control_pid > 0) {
1652 r = unit_watch_pid(UNIT(s), s->control_pid);
1657 if (s->deserialized_state == SERVICE_START_POST ||
1658 s->deserialized_state == SERVICE_RUNNING)
1659 service_handle_watchdog(s);
1661 service_set_state(s, s->deserialized_state);
1666 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1670 unsigned rn_fds = 0;
1677 if (s->socket_fd >= 0)
1680 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1685 if (u->type != UNIT_SOCKET)
1690 r = socket_collect_fds(sock, &cfds, &cn_fds);
1703 t = new(int, rn_fds+cn_fds);
1710 memcpy(t, rfds, rn_fds * sizeof(int));
1711 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1716 rn_fds = rn_fds+cn_fds;
1731 static int service_spawn(
1736 bool apply_permissions,
1738 bool apply_tty_stdin,
1739 bool set_notify_socket,
1746 _cleanup_free_ int *fdsbuf = NULL;
1747 unsigned n_fds = 0, n_env = 0;
1748 _cleanup_strv_free_ char
1749 **argv = NULL, **final_env = NULL, **our_env = NULL;
1756 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1757 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1758 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1760 if (s->socket_fd >= 0) {
1761 fds = &s->socket_fd;
1764 r = service_collect_fds(s, &fdsbuf, &n_fds);
1772 if (timeout && s->timeout_start_usec) {
1773 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1774 s->timeout_start_usec, &s->timer_watch);
1778 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1780 argv = unit_full_printf_strv(UNIT(s), c->argv);
1786 our_env = new0(char*, 5);
1792 if (set_notify_socket)
1793 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1798 if (s->main_pid > 0)
1799 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1804 if (s->watchdog_usec > 0)
1805 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1810 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1811 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1816 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1830 UNIT(s)->manager->confirm_spawn,
1831 UNIT(s)->cgroup_bondings,
1832 UNIT(s)->cgroup_attributes,
1833 is_control ? "control" : NULL,
1835 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1840 r = unit_watch_pid(UNIT(s), pid);
1842 /* FIXME: we need to do something here */
1851 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1856 static int main_pid_good(Service *s) {
1859 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1862 /* If we know the pid file, then lets just check if it is
1864 if (s->main_pid_known) {
1866 /* If it's an alien child let's check if it is still
1868 if (s->main_pid_alien)
1869 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1871 /* .. otherwise assume we'll get a SIGCHLD for it,
1872 * which we really should wait for to collect exit
1873 * status and code */
1874 return s->main_pid > 0;
1877 /* We don't know the pid */
1881 _pure_ static int control_pid_good(Service *s) {
1884 return s->control_pid > 0;
1887 static int cgroup_good(Service *s) {
1892 r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
1899 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1903 if (f != SERVICE_SUCCESS)
1906 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1908 if (allow_restart &&
1909 !s->forbid_restart &&
1910 (s->restart == SERVICE_RESTART_ALWAYS ||
1911 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1912 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1913 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1914 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1915 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1916 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1917 (s->result != SERVICE_FAILURE_SIGNAL ||
1918 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1921 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1925 service_set_state(s, SERVICE_AUTO_RESTART);
1928 s->forbid_restart = false;
1930 /* we want fresh tmpdirs in case service is started again immediately */
1931 exec_context_tmp_dirs_done(&s->exec_context);
1936 log_warning_unit(UNIT(s)->id,
1937 "%s failed to run install restart timer: %s",
1938 UNIT(s)->id, strerror(-r));
1939 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1942 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1944 static void service_enter_stop_post(Service *s, ServiceResult f) {
1948 if (f != SERVICE_SUCCESS)
1951 service_unwatch_control_pid(s);
1953 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1954 if (s->control_command) {
1955 s->control_command_id = SERVICE_EXEC_STOP_POST;
1957 r = service_spawn(s,
1961 !s->permissions_start_only,
1962 !s->root_directory_start_only,
1971 service_set_state(s, SERVICE_STOP_POST);
1973 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1978 log_warning_unit(UNIT(s)->id,
1979 "%s failed to run 'stop-post' task: %s",
1980 UNIT(s)->id, strerror(-r));
1981 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1984 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1989 if (f != SERVICE_SUCCESS)
1992 r = unit_kill_context(
1995 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2003 if (s->timeout_stop_usec > 0) {
2004 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2005 s->timeout_stop_usec, &s->timer_watch);
2010 service_set_state(s, state);
2011 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2012 service_enter_stop_post(s, SERVICE_SUCCESS);
2014 service_enter_dead(s, SERVICE_SUCCESS, true);
2019 log_warning_unit(UNIT(s)->id,
2020 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2022 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2023 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2025 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2028 static void service_enter_stop(Service *s, ServiceResult f) {
2033 if (f != SERVICE_SUCCESS)
2036 service_unwatch_control_pid(s);
2038 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2039 if (s->control_command) {
2040 s->control_command_id = SERVICE_EXEC_STOP;
2042 r = service_spawn(s,
2046 !s->permissions_start_only,
2047 !s->root_directory_start_only,
2055 service_set_state(s, SERVICE_STOP);
2057 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2062 log_warning_unit(UNIT(s)->id,
2063 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2064 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2067 static void service_enter_running(Service *s, ServiceResult f) {
2068 int main_pid_ok, cgroup_ok;
2071 if (f != SERVICE_SUCCESS)
2074 main_pid_ok = main_pid_good(s);
2075 cgroup_ok = cgroup_good(s);
2077 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2078 (s->bus_name_good || s->type != SERVICE_DBUS))
2079 service_set_state(s, SERVICE_RUNNING);
2080 else if (s->remain_after_exit)
2081 service_set_state(s, SERVICE_EXITED);
2083 service_enter_stop(s, SERVICE_SUCCESS);
2086 static void service_enter_start_post(Service *s) {
2090 service_unwatch_control_pid(s);
2092 if (s->watchdog_usec > 0)
2093 service_reset_watchdog(s);
2095 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2096 if (s->control_command) {
2097 s->control_command_id = SERVICE_EXEC_START_POST;
2099 r = service_spawn(s,
2103 !s->permissions_start_only,
2104 !s->root_directory_start_only,
2112 service_set_state(s, SERVICE_START_POST);
2114 service_enter_running(s, SERVICE_SUCCESS);
2119 log_warning_unit(UNIT(s)->id,
2120 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2121 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2124 static void service_enter_start(Service *s) {
2131 assert(s->exec_command[SERVICE_EXEC_START]);
2132 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2134 if (s->type == SERVICE_FORKING)
2135 service_unwatch_control_pid(s);
2137 service_unwatch_main_pid(s);
2139 /* We want to ensure that nobody leaks processes from
2140 * START_PRE here, so let's go on a killing spree, People
2141 * should not spawn long running processes from START_PRE. */
2142 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2144 if (s->type == SERVICE_FORKING) {
2145 s->control_command_id = SERVICE_EXEC_START;
2146 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2148 s->main_command = NULL;
2150 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2151 s->control_command = NULL;
2153 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2156 r = service_spawn(s,
2158 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2159 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2164 s->notify_access != NOTIFY_NONE,
2170 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2171 /* For simple services we immediately start
2172 * the START_POST binaries. */
2174 service_set_main_pid(s, pid);
2175 service_enter_start_post(s);
2177 } else if (s->type == SERVICE_FORKING) {
2179 /* For forking services we wait until the start
2180 * process exited. */
2182 s->control_pid = pid;
2183 service_set_state(s, SERVICE_START);
2185 } else if (s->type == SERVICE_ONESHOT ||
2186 s->type == SERVICE_DBUS ||
2187 s->type == SERVICE_NOTIFY) {
2189 /* For oneshot services we wait until the start
2190 * process exited, too, but it is our main process. */
2192 /* For D-Bus services we know the main pid right away,
2193 * but wait for the bus name to appear on the
2194 * bus. Notify services are similar. */
2196 service_set_main_pid(s, pid);
2197 service_set_state(s, SERVICE_START);
2199 assert_not_reached("Unknown service type");
2204 log_warning_unit(UNIT(s)->id,
2205 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2206 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2209 static void service_enter_start_pre(Service *s) {
2214 service_unwatch_control_pid(s);
2216 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2217 if (s->control_command) {
2219 /* Before we start anything, let's clear up what might
2220 * be left from previous runs. */
2221 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
2222 true,true, NULL, "control");
2224 s->control_command_id = SERVICE_EXEC_START_PRE;
2226 r = service_spawn(s,
2230 !s->permissions_start_only,
2231 !s->root_directory_start_only,
2239 service_set_state(s, SERVICE_START_PRE);
2241 service_enter_start(s);
2246 log_warning_unit(UNIT(s)->id,
2247 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2248 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2251 static void service_enter_restart(Service *s) {
2256 dbus_error_init(&error);
2258 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2259 /* Don't restart things if we are going down anyway */
2260 log_info_unit(UNIT(s)->id,
2261 "Stop job pending for unit, delaying automatic restart.");
2263 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2270 /* Any units that are bound to this service must also be
2271 * restarted. We use JOB_RESTART (instead of the more obvious
2272 * JOB_START) here so that those dependency jobs will be added
2274 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2278 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2279 * it will be canceled as part of the service_stop() call that
2280 * is executed as part of JOB_RESTART. */
2282 log_debug_unit(UNIT(s)->id,
2283 "%s scheduled restart job.", UNIT(s)->id);
2287 log_warning_unit(UNIT(s)->id,
2288 "%s failed to schedule restart job: %s",
2289 UNIT(s)->id, bus_error(&error, -r));
2290 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2292 dbus_error_free(&error);
2295 static void service_enter_reload(Service *s) {
2300 service_unwatch_control_pid(s);
2302 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2303 if (s->control_command) {
2304 s->control_command_id = SERVICE_EXEC_RELOAD;
2306 r = service_spawn(s,
2310 !s->permissions_start_only,
2311 !s->root_directory_start_only,
2319 service_set_state(s, SERVICE_RELOAD);
2321 service_enter_running(s, SERVICE_SUCCESS);
2326 log_warning_unit(UNIT(s)->id,
2327 "%s failed to run 'reload' task: %s",
2328 UNIT(s)->id, strerror(-r));
2329 s->reload_result = SERVICE_FAILURE_RESOURCES;
2330 service_enter_running(s, SERVICE_SUCCESS);
2333 static void service_run_next_control(Service *s) {
2337 assert(s->control_command);
2338 assert(s->control_command->command_next);
2340 assert(s->control_command_id != SERVICE_EXEC_START);
2342 s->control_command = s->control_command->command_next;
2343 service_unwatch_control_pid(s);
2345 r = service_spawn(s,
2349 !s->permissions_start_only,
2350 !s->root_directory_start_only,
2351 s->control_command_id == SERVICE_EXEC_START_PRE ||
2352 s->control_command_id == SERVICE_EXEC_STOP_POST,
2362 log_warning_unit(UNIT(s)->id,
2363 "%s failed to run next control task: %s",
2364 UNIT(s)->id, strerror(-r));
2366 if (s->state == SERVICE_START_PRE)
2367 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2368 else if (s->state == SERVICE_STOP)
2369 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2370 else if (s->state == SERVICE_STOP_POST)
2371 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2372 else if (s->state == SERVICE_RELOAD) {
2373 s->reload_result = SERVICE_FAILURE_RESOURCES;
2374 service_enter_running(s, SERVICE_SUCCESS);
2376 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2379 static void service_run_next_main(Service *s) {
2384 assert(s->main_command);
2385 assert(s->main_command->command_next);
2386 assert(s->type == SERVICE_ONESHOT);
2388 s->main_command = s->main_command->command_next;
2389 service_unwatch_main_pid(s);
2391 r = service_spawn(s,
2398 s->notify_access != NOTIFY_NONE,
2404 service_set_main_pid(s, pid);
2409 log_warning_unit(UNIT(s)->id,
2410 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2411 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2414 static int service_start_limit_test(Service *s) {
2417 if (ratelimit_test(&s->start_limit))
2420 switch (s->start_limit_action) {
2422 case SERVICE_START_LIMIT_NONE:
2423 log_warning_unit(UNIT(s)->id,
2424 "%s start request repeated too quickly, refusing to start.",
2428 case SERVICE_START_LIMIT_REBOOT: {
2432 dbus_error_init(&error);
2434 log_warning_unit(UNIT(s)->id,
2435 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2437 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2438 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2439 true, &error, NULL);
2441 log_error_unit(UNIT(s)->id,
2442 "Failed to reboot: %s.", bus_error(&error, r));
2443 dbus_error_free(&error);
2449 case SERVICE_START_LIMIT_REBOOT_FORCE:
2450 log_warning_unit(UNIT(s)->id,
2451 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2452 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2455 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2456 log_warning_unit(UNIT(s)->id,
2457 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2459 reboot(RB_AUTOBOOT);
2463 log_error_unit(UNIT(s)->id,
2464 "start limit action=%i", s->start_limit_action);
2465 assert_not_reached("Unknown StartLimitAction.");
2471 static int service_start(Unit *u) {
2472 Service *s = SERVICE(u);
2477 /* We cannot fulfill this request right now, try again later
2479 if (s->state == SERVICE_STOP ||
2480 s->state == SERVICE_STOP_SIGTERM ||
2481 s->state == SERVICE_STOP_SIGKILL ||
2482 s->state == SERVICE_STOP_POST ||
2483 s->state == SERVICE_FINAL_SIGTERM ||
2484 s->state == SERVICE_FINAL_SIGKILL)
2487 /* Already on it! */
2488 if (s->state == SERVICE_START_PRE ||
2489 s->state == SERVICE_START ||
2490 s->state == SERVICE_START_POST)
2493 /* A service that will be restarted must be stopped first to
2494 * trigger BindsTo and/or OnFailure dependencies. If a user
2495 * does not want to wait for the holdoff time to elapse, the
2496 * service should be manually restarted, not started. We
2497 * simply return EAGAIN here, so that any start jobs stay
2498 * queued, and assume that the auto restart timer will
2499 * eventually trigger the restart. */
2500 if (s->state == SERVICE_AUTO_RESTART)
2503 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2505 /* Make sure we don't enter a busy loop of some kind. */
2506 r = service_start_limit_test(s);
2508 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2512 s->result = SERVICE_SUCCESS;
2513 s->reload_result = SERVICE_SUCCESS;
2514 s->main_pid_known = false;
2515 s->main_pid_alien = false;
2516 s->forbid_restart = false;
2518 service_enter_start_pre(s);
2522 static int service_stop(Unit *u) {
2523 Service *s = SERVICE(u);
2527 /* Don't create restart jobs from here. */
2528 s->forbid_restart = true;
2531 if (s->state == SERVICE_STOP ||
2532 s->state == SERVICE_STOP_SIGTERM ||
2533 s->state == SERVICE_STOP_SIGKILL ||
2534 s->state == SERVICE_STOP_POST ||
2535 s->state == SERVICE_FINAL_SIGTERM ||
2536 s->state == SERVICE_FINAL_SIGKILL)
2539 /* A restart will be scheduled or is in progress. */
2540 if (s->state == SERVICE_AUTO_RESTART) {
2541 service_set_state(s, SERVICE_DEAD);
2545 /* If there's already something running we go directly into
2547 if (s->state == SERVICE_START_PRE ||
2548 s->state == SERVICE_START ||
2549 s->state == SERVICE_START_POST ||
2550 s->state == SERVICE_RELOAD) {
2551 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2555 assert(s->state == SERVICE_RUNNING ||
2556 s->state == SERVICE_EXITED);
2558 service_enter_stop(s, SERVICE_SUCCESS);
2562 static int service_reload(Unit *u) {
2563 Service *s = SERVICE(u);
2567 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2569 service_enter_reload(s);
2573 _pure_ static bool service_can_reload(Unit *u) {
2574 Service *s = SERVICE(u);
2578 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2581 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2582 Service *s = SERVICE(u);
2588 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2589 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2590 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2592 if (s->control_pid > 0)
2593 unit_serialize_item_format(u, f, "control-pid", "%lu",
2594 (unsigned long) s->control_pid);
2596 if (s->main_pid_known && s->main_pid > 0)
2597 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2599 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2602 unit_serialize_item(u, f, "status-text", s->status_text);
2604 /* FIXME: There's a minor uncleanliness here: if there are
2605 * multiple commands attached here, we will start from the
2606 * first one again */
2607 if (s->control_command_id >= 0)
2608 unit_serialize_item(u, f, "control-command",
2609 service_exec_command_to_string(s->control_command_id));
2611 if (s->socket_fd >= 0) {
2614 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2617 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2620 if (s->main_exec_status.pid > 0) {
2621 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2622 (unsigned long) s->main_exec_status.pid);
2623 dual_timestamp_serialize(f, "main-exec-status-start",
2624 &s->main_exec_status.start_timestamp);
2625 dual_timestamp_serialize(f, "main-exec-status-exit",
2626 &s->main_exec_status.exit_timestamp);
2628 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2629 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2630 s->main_exec_status.code);
2631 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2632 s->main_exec_status.status);
2635 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2636 dual_timestamp_serialize(f, "watchdog-timestamp",
2637 &s->watchdog_timestamp);
2639 if (s->exec_context.tmp_dir)
2640 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2642 if (s->exec_context.var_tmp_dir)
2643 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
2648 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2649 Service *s = SERVICE(u);
2656 if (streq(key, "state")) {
2659 state = service_state_from_string(value);
2661 log_debug_unit(u->id, "Failed to parse state value %s", value);
2663 s->deserialized_state = state;
2664 } else if (streq(key, "result")) {
2667 f = service_result_from_string(value);
2669 log_debug_unit(u->id, "Failed to parse result value %s", value);
2670 else if (f != SERVICE_SUCCESS)
2673 } else if (streq(key, "reload-result")) {
2676 f = service_result_from_string(value);
2678 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2679 else if (f != SERVICE_SUCCESS)
2680 s->reload_result = f;
2682 } else if (streq(key, "control-pid")) {
2685 if (parse_pid(value, &pid) < 0)
2686 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2688 s->control_pid = pid;
2689 } else if (streq(key, "main-pid")) {
2692 if (parse_pid(value, &pid) < 0)
2693 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2695 service_set_main_pid(s, (pid_t) pid);
2696 } else if (streq(key, "main-pid-known")) {
2699 b = parse_boolean(value);
2701 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2703 s->main_pid_known = b;
2704 } else if (streq(key, "status-text")) {
2711 free(s->status_text);
2715 } else if (streq(key, "control-command")) {
2716 ServiceExecCommand id;
2718 id = service_exec_command_from_string(value);
2720 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2722 s->control_command_id = id;
2723 s->control_command = s->exec_command[id];
2725 } else if (streq(key, "socket-fd")) {
2728 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2729 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2732 if (s->socket_fd >= 0)
2733 close_nointr_nofail(s->socket_fd);
2734 s->socket_fd = fdset_remove(fds, fd);
2736 } else if (streq(key, "main-exec-status-pid")) {
2739 if (parse_pid(value, &pid) < 0)
2740 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2742 s->main_exec_status.pid = pid;
2743 } else if (streq(key, "main-exec-status-code")) {
2746 if (safe_atoi(value, &i) < 0)
2747 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2749 s->main_exec_status.code = i;
2750 } else if (streq(key, "main-exec-status-status")) {
2753 if (safe_atoi(value, &i) < 0)
2754 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2756 s->main_exec_status.status = i;
2757 } else if (streq(key, "main-exec-status-start"))
2758 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2759 else if (streq(key, "main-exec-status-exit"))
2760 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2761 else if (streq(key, "watchdog-timestamp"))
2762 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2763 else if (streq(key, "tmp-dir")) {
2770 s->exec_context.tmp_dir = t;
2771 } else if (streq(key, "var-tmp-dir")) {
2778 s->exec_context.var_tmp_dir = t;
2780 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2785 _pure_ static UnitActiveState service_active_state(Unit *u) {
2786 const UnitActiveState *table;
2790 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2792 return table[SERVICE(u)->state];
2795 static const char *service_sub_state_to_string(Unit *u) {
2798 return service_state_to_string(SERVICE(u)->state);
2801 static bool service_check_gc(Unit *u) {
2802 Service *s = SERVICE(u);
2806 /* Never clean up services that still have a process around,
2807 * even if the service is formally dead. */
2808 if (cgroup_good(s) > 0 ||
2809 main_pid_good(s) > 0 ||
2810 control_pid_good(s) > 0)
2813 #ifdef HAVE_SYSV_COMPAT
2821 _pure_ static bool service_check_snapshot(Unit *u) {
2822 Service *s = SERVICE(u);
2826 return !s->got_socket_fd;
2829 static int service_retry_pid_file(Service *s) {
2832 assert(s->pid_file);
2833 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2835 r = service_load_pid_file(s, false);
2839 service_unwatch_pid_file(s);
2841 service_enter_running(s, SERVICE_SUCCESS);
2845 static int service_watch_pid_file(Service *s) {
2848 log_debug_unit(UNIT(s)->id,
2849 "Setting watch for %s's PID file %s",
2850 UNIT(s)->id, s->pid_file_pathspec->path);
2851 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2855 /* the pidfile might have appeared just before we set the watch */
2856 log_debug_unit(UNIT(s)->id,
2857 "Trying to read %s's PID file %s in case it changed",
2858 UNIT(s)->id, s->pid_file_pathspec->path);
2859 service_retry_pid_file(s);
2863 log_error_unit(UNIT(s)->id,
2864 "Failed to set a watch for %s's PID file %s: %s",
2865 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2866 service_unwatch_pid_file(s);
2870 static int service_demand_pid_file(Service *s) {
2873 assert(s->pid_file);
2874 assert(!s->pid_file_pathspec);
2876 ps = new0(PathSpec, 1);
2880 ps->path = strdup(s->pid_file);
2886 path_kill_slashes(ps->path);
2888 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2889 * keep their PID file open all the time. */
2890 ps->type = PATH_MODIFIED;
2891 ps->inotify_fd = -1;
2893 s->pid_file_pathspec = ps;
2895 return service_watch_pid_file(s);
2898 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2899 Service *s = SERVICE(u);
2903 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2904 assert(s->pid_file_pathspec);
2905 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2907 log_debug_unit(u->id, "inotify event for %s", u->id);
2909 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2912 if (service_retry_pid_file(s) == 0)
2915 if (service_watch_pid_file(s) < 0)
2920 service_unwatch_pid_file(s);
2921 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2924 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2925 Service *s = SERVICE(u);
2931 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2932 is_clean_exit_lsb(code, status, &s->success_status))
2933 f = SERVICE_SUCCESS;
2934 else if (code == CLD_EXITED)
2935 f = SERVICE_FAILURE_EXIT_CODE;
2936 else if (code == CLD_KILLED)
2937 f = SERVICE_FAILURE_SIGNAL;
2938 else if (code == CLD_DUMPED)
2939 f = SERVICE_FAILURE_CORE_DUMP;
2941 assert_not_reached("Unknown code");
2943 if (s->main_pid == pid) {
2944 /* Forking services may occasionally move to a new PID.
2945 * As long as they update the PID file before exiting the old
2946 * PID, they're fine. */
2947 if (service_load_pid_file(s, false) == 0)
2951 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2953 if (s->main_command) {
2954 /* If this is not a forking service than the
2955 * main process got started and hence we copy
2956 * the exit status so that it is recorded both
2957 * as main and as control process exit
2960 s->main_command->exec_status = s->main_exec_status;
2962 if (s->main_command->ignore)
2963 f = SERVICE_SUCCESS;
2964 } else if (s->exec_command[SERVICE_EXEC_START]) {
2966 /* If this is a forked process, then we should
2967 * ignore the return value if this was
2968 * configured for the starter process */
2970 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2971 f = SERVICE_SUCCESS;
2974 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2976 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2977 u->id, sigchld_code_to_string(code), status,
2978 strna(code == CLD_EXITED
2979 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2980 : signal_to_string(status)),
2981 "EXIT_CODE=%s", sigchld_code_to_string(code),
2982 "EXIT_STATUS=%i", status,
2985 if (f != SERVICE_SUCCESS)
2988 if (s->main_command &&
2989 s->main_command->command_next &&
2990 f == SERVICE_SUCCESS) {
2992 /* There is another command to *
2993 * execute, so let's do that. */
2995 log_debug_unit(u->id,
2996 "%s running next main command for state %s",
2997 u->id, service_state_to_string(s->state));
2998 service_run_next_main(s);
3002 /* The service exited, so the service is officially
3004 s->main_command = NULL;
3008 case SERVICE_START_POST:
3009 case SERVICE_RELOAD:
3011 /* Need to wait until the operation is
3016 if (s->type == SERVICE_ONESHOT) {
3017 /* This was our main goal, so let's go on */
3018 if (f == SERVICE_SUCCESS)
3019 service_enter_start_post(s);
3021 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3027 case SERVICE_RUNNING:
3028 service_enter_running(s, f);
3031 case SERVICE_STOP_SIGTERM:
3032 case SERVICE_STOP_SIGKILL:
3034 if (!control_pid_good(s))
3035 service_enter_stop_post(s, f);
3037 /* If there is still a control process, wait for that first */
3041 assert_not_reached("Uh, main process died at wrong time.");
3045 } else if (s->control_pid == pid) {
3049 if (s->control_command) {
3050 exec_status_exit(&s->control_command->exec_status,
3051 &s->exec_context, pid, code, status);
3053 if (s->control_command->ignore)
3054 f = SERVICE_SUCCESS;
3057 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3058 "%s: control process exited, code=%s status=%i",
3059 u->id, sigchld_code_to_string(code), status);
3061 if (f != SERVICE_SUCCESS)
3064 /* Immediately get rid of the cgroup, so that the
3065 * kernel doesn't delay the cgroup empty messages for
3066 * the service cgroup any longer than necessary */
3067 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
3068 true, true, NULL, "control");
3070 if (s->control_command &&
3071 s->control_command->command_next &&
3072 f == SERVICE_SUCCESS) {
3074 /* There is another command to *
3075 * execute, so let's do that. */
3077 log_debug_unit(u->id,
3078 "%s running next control command for state %s",
3079 u->id, service_state_to_string(s->state));
3080 service_run_next_control(s);
3083 /* No further commands for this step, so let's
3084 * figure out what to do next */
3086 s->control_command = NULL;
3087 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3089 log_debug_unit(u->id,
3090 "%s got final SIGCHLD for state %s",
3091 u->id, service_state_to_string(s->state));
3095 case SERVICE_START_PRE:
3096 if (f == SERVICE_SUCCESS)
3097 service_enter_start(s);
3099 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3103 if (s->type != SERVICE_FORKING)
3104 /* Maybe spurious event due to a reload that changed the type? */
3107 if (f != SERVICE_SUCCESS) {
3108 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3113 bool has_start_post;
3116 /* Let's try to load the pid file here if we can.
3117 * The PID file might actually be created by a START_POST
3118 * script. In that case don't worry if the loading fails. */
3120 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3121 r = service_load_pid_file(s, !has_start_post);
3122 if (!has_start_post && r < 0) {
3123 r = service_demand_pid_file(s);
3124 if (r < 0 || !cgroup_good(s))
3125 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3129 service_search_main_pid(s);
3131 service_enter_start_post(s);
3134 case SERVICE_START_POST:
3135 if (f != SERVICE_SUCCESS) {
3136 service_enter_stop(s, f);
3143 r = service_load_pid_file(s, true);
3145 r = service_demand_pid_file(s);
3146 if (r < 0 || !cgroup_good(s))
3147 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3151 service_search_main_pid(s);
3153 service_enter_running(s, SERVICE_SUCCESS);
3156 case SERVICE_RELOAD:
3157 if (f == SERVICE_SUCCESS) {
3158 service_load_pid_file(s, true);
3159 service_search_main_pid(s);
3162 s->reload_result = f;
3163 service_enter_running(s, SERVICE_SUCCESS);
3167 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3170 case SERVICE_STOP_SIGTERM:
3171 case SERVICE_STOP_SIGKILL:
3172 if (main_pid_good(s) <= 0)
3173 service_enter_stop_post(s, f);
3175 /* If there is still a service
3176 * process around, wait until
3177 * that one quit, too */
3180 case SERVICE_STOP_POST:
3181 case SERVICE_FINAL_SIGTERM:
3182 case SERVICE_FINAL_SIGKILL:
3183 service_enter_dead(s, f, true);
3187 assert_not_reached("Uh, control process died at wrong time.");
3192 /* Notify clients about changed exit status */
3193 unit_add_to_dbus_queue(u);
3196 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3197 Service *s = SERVICE(u);
3200 assert(elapsed == 1);
3202 if (w == &s->watchdog_watch) {
3203 service_handle_watchdog(s);
3207 assert(w == &s->timer_watch);
3211 case SERVICE_START_PRE:
3213 log_warning_unit(u->id,
3214 "%s operation timed out. Terminating.", u->id);
3215 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3218 case SERVICE_START_POST:
3219 log_warning_unit(u->id,
3220 "%s operation timed out. Stopping.", u->id);
3221 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3224 case SERVICE_RELOAD:
3225 log_warning_unit(u->id,
3226 "%s operation timed out. Stopping.", u->id);
3227 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3228 service_enter_running(s, SERVICE_SUCCESS);
3232 log_warning_unit(u->id,
3233 "%s stopping timed out. Terminating.", u->id);
3234 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3237 case SERVICE_STOP_SIGTERM:
3238 if (s->kill_context.send_sigkill) {
3239 log_warning_unit(u->id,
3240 "%s stopping timed out. Killing.", u->id);
3241 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3243 log_warning_unit(u->id,
3244 "%s stopping timed out. Skipping SIGKILL.", u->id);
3245 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3250 case SERVICE_STOP_SIGKILL:
3251 /* Uh, we sent a SIGKILL and it is still not gone?
3252 * Must be something we cannot kill, so let's just be
3253 * weirded out and continue */
3255 log_warning_unit(u->id,
3256 "%s still around after SIGKILL. Ignoring.", u->id);
3257 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3260 case SERVICE_STOP_POST:
3261 log_warning_unit(u->id,
3262 "%s stopping timed out (2). Terminating.", u->id);
3263 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3266 case SERVICE_FINAL_SIGTERM:
3267 if (s->kill_context.send_sigkill) {
3268 log_warning_unit(u->id,
3269 "%s stopping timed out (2). Killing.", u->id);
3270 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3272 log_warning_unit(u->id,
3273 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3275 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3280 case SERVICE_FINAL_SIGKILL:
3281 log_warning_unit(u->id,
3282 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3283 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3286 case SERVICE_AUTO_RESTART:
3287 log_info_unit(u->id,
3288 "%s holdoff time over, scheduling restart.", u->id);
3289 service_enter_restart(s);
3293 assert_not_reached("Timeout at wrong time.");
3297 static void service_cgroup_notify_event(Unit *u) {
3298 Service *s = SERVICE(u);
3302 log_debug_unit(u->id,
3303 "%s: cgroup is empty", u->id);
3307 /* Waiting for SIGCHLD is usually more interesting,
3308 * because it includes return codes/signals. Which is
3309 * why we ignore the cgroup events for most cases,
3310 * except when we don't know pid which to expect the
3314 case SERVICE_START_POST:
3315 /* If we were hoping for the daemon to write its PID file,
3316 * we can give up now. */
3317 if (s->pid_file_pathspec) {
3318 log_warning_unit(u->id,
3319 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3320 service_unwatch_pid_file(s);
3321 if (s->state == SERVICE_START)
3322 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3324 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3328 case SERVICE_RUNNING:
3329 /* service_enter_running() will figure out what to do */
3330 service_enter_running(s, SERVICE_SUCCESS);
3333 case SERVICE_STOP_SIGTERM:
3334 case SERVICE_STOP_SIGKILL:
3336 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3337 service_enter_stop_post(s, SERVICE_SUCCESS);
3341 case SERVICE_FINAL_SIGTERM:
3342 case SERVICE_FINAL_SIGKILL:
3343 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3344 service_enter_dead(s, SERVICE_SUCCESS, true);
3353 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3354 Service *s = SERVICE(u);
3359 if (s->notify_access == NOTIFY_NONE) {
3360 log_warning_unit(u->id,
3361 "%s: Got notification message from PID %lu, but reception is disabled.",
3362 u->id, (unsigned long) pid);
3366 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3367 log_warning_unit(u->id,
3368 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3369 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3373 log_debug_unit(u->id,
3374 "%s: Got message", u->id);
3376 /* Interpret MAINPID= */
3377 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3378 (s->state == SERVICE_START ||
3379 s->state == SERVICE_START_POST ||
3380 s->state == SERVICE_RUNNING ||
3381 s->state == SERVICE_RELOAD)) {
3383 if (parse_pid(e + 8, &pid) < 0)
3384 log_warning_unit(u->id,
3385 "Failed to parse notification message %s", e);
3387 log_debug_unit(u->id,
3388 "%s: got %s", u->id, e);
3389 service_set_main_pid(s, pid);
3393 /* Interpret READY= */
3394 if (s->type == SERVICE_NOTIFY &&
3395 s->state == SERVICE_START &&
3396 strv_find(tags, "READY=1")) {
3397 log_debug_unit(u->id,
3398 "%s: got READY=1", u->id);
3400 service_enter_start_post(s);
3403 /* Interpret STATUS= */
3404 e = strv_find_prefix(tags, "STATUS=");
3410 if (!utf8_is_valid(e+7)) {
3411 log_warning_unit(u->id,
3412 "Status message in notification is not UTF-8 clean.");
3418 log_error_unit(u->id,
3419 "Failed to allocate string.");
3423 log_debug_unit(u->id,
3424 "%s: got %s", u->id, e);
3426 free(s->status_text);
3429 free(s->status_text);
3430 s->status_text = NULL;
3434 if (strv_find(tags, "WATCHDOG=1")) {
3435 log_debug_unit(u->id,
3436 "%s: got WATCHDOG=1", u->id);
3437 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3438 service_reset_watchdog(s);
3441 /* Notify clients about changed status or main pid */
3442 unit_add_to_dbus_queue(u);
3445 #ifdef HAVE_SYSV_COMPAT
3447 static int service_enumerate(Manager *m) {
3450 _cleanup_closedir_ DIR *d = NULL;
3451 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3452 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3453 _cleanup_set_free_ Set *shutdown_services = NULL;
3460 if (m->running_as != SYSTEMD_SYSTEM)
3463 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3464 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3468 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3479 if (errno != ENOENT)
3480 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3485 while ((de = readdir(d))) {
3488 if (ignore_file(de->d_name))
3491 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3494 if (strlen(de->d_name) < 4)
3497 a = undecchar(de->d_name[1]);
3498 b = undecchar(de->d_name[2]);
3504 fpath = strjoin(path, "/", de->d_name, NULL);
3510 if (access(fpath, X_OK) < 0) {
3512 if (errno != ENOENT)
3513 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3519 name = sysv_translate_name(de->d_name + 3);
3525 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3527 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3531 if (de->d_name[0] == 'S') {
3533 if (rcnd_table[i].type == RUNLEVEL_UP) {
3534 SERVICE(service)->sysv_start_priority_from_rcnd =
3535 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3537 SERVICE(service)->sysv_enabled = true;
3540 r = set_ensure_allocated(&runlevel_services[i],
3541 trivial_hash_func, trivial_compare_func);
3545 r = set_put(runlevel_services[i], service);
3549 } else if (de->d_name[0] == 'K' &&
3550 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3552 r = set_ensure_allocated(&shutdown_services,
3553 trivial_hash_func, trivial_compare_func);
3557 r = set_put(shutdown_services, service);
3564 /* Now we loaded all stubs and are aware of the lowest
3565 start-up priority for all services, not let's actually load
3566 the services, this will also tell us which services are
3567 actually native now */
3568 manager_dispatch_load_queue(m);
3570 /* If this is a native service, rely on native ways to pull in
3571 * a service, don't pull it in via sysv rcN.d links. */
3572 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3573 SET_FOREACH(service, runlevel_services[i], j) {
3574 service = unit_follow_merge(service);
3576 if (service->fragment_path)
3579 r = unit_add_two_dependencies_by_name_inverse(
3580 service, UNIT_AFTER, UNIT_WANTS,
3581 rcnd_table[i].target, NULL, true);
3586 /* We honour K links only for halt/reboot. For the normal
3587 * runlevels we assume the stop jobs will be implicitly added
3588 * by the core logic. Also, we don't really distinguish here
3589 * between the runlevels 0 and 6 and just add them to the
3590 * special shutdown target. */
3591 SET_FOREACH(service, shutdown_services, j) {
3592 service = unit_follow_merge(service);
3594 if (service->fragment_path)
3597 r = unit_add_two_dependencies_by_name(
3598 service, UNIT_BEFORE, UNIT_CONFLICTS,
3599 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3608 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3609 set_free(runlevel_services[i]);
3615 static void service_bus_name_owner_change(
3618 const char *old_owner,
3619 const char *new_owner) {
3621 Service *s = SERVICE(u);
3626 assert(streq(s->bus_name, name));
3627 assert(old_owner || new_owner);
3629 if (old_owner && new_owner)
3630 log_debug_unit(u->id,
3631 "%s's D-Bus name %s changed owner from %s to %s",
3632 u->id, name, old_owner, new_owner);
3634 log_debug_unit(u->id,
3635 "%s's D-Bus name %s no longer registered by %s",
3636 u->id, name, old_owner);
3638 log_debug_unit(u->id,
3639 "%s's D-Bus name %s now registered by %s",
3640 u->id, name, new_owner);
3642 s->bus_name_good = !!new_owner;
3644 if (s->type == SERVICE_DBUS) {
3646 /* service_enter_running() will figure out what to
3648 if (s->state == SERVICE_RUNNING)
3649 service_enter_running(s, SERVICE_SUCCESS);
3650 else if (s->state == SERVICE_START && new_owner)
3651 service_enter_start_post(s);
3653 } else if (new_owner &&
3655 (s->state == SERVICE_START ||
3656 s->state == SERVICE_START_POST ||
3657 s->state == SERVICE_RUNNING ||
3658 s->state == SERVICE_RELOAD)) {
3660 /* Try to acquire PID from bus service */
3661 log_debug_unit(u->id,
3662 "Trying to acquire PID from D-Bus name...");
3664 bus_query_pid(u->manager, name);
3668 static void service_bus_query_pid_done(
3673 Service *s = SERVICE(u);
3678 log_debug_unit(u->id,
3679 "%s's D-Bus name %s is now owned by process %u",
3680 u->id, name, (unsigned) pid);
3682 if (s->main_pid <= 0 &&
3683 (s->state == SERVICE_START ||
3684 s->state == SERVICE_START_POST ||
3685 s->state == SERVICE_RUNNING ||
3686 s->state == SERVICE_RELOAD))
3687 service_set_main_pid(s, pid);
3690 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3695 /* This is called by the socket code when instantiating a new
3696 * service for a stream socket and the socket needs to be
3699 if (UNIT(s)->load_state != UNIT_LOADED)
3702 if (s->socket_fd >= 0)
3705 if (s->state != SERVICE_DEAD)
3709 s->got_socket_fd = true;
3711 unit_ref_set(&s->accept_socket, UNIT(sock));
3713 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3716 static void service_reset_failed(Unit *u) {
3717 Service *s = SERVICE(u);
3721 if (s->state == SERVICE_FAILED)
3722 service_set_state(s, SERVICE_DEAD);
3724 s->result = SERVICE_SUCCESS;
3725 s->reload_result = SERVICE_SUCCESS;
3727 RATELIMIT_RESET(s->start_limit);
3730 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3731 Service *s = SERVICE(u);
3732 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3735 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3736 [SERVICE_DEAD] = "dead",
3737 [SERVICE_START_PRE] = "start-pre",
3738 [SERVICE_START] = "start",
3739 [SERVICE_START_POST] = "start-post",
3740 [SERVICE_RUNNING] = "running",
3741 [SERVICE_EXITED] = "exited",
3742 [SERVICE_RELOAD] = "reload",
3743 [SERVICE_STOP] = "stop",
3744 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3745 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3746 [SERVICE_STOP_POST] = "stop-post",
3747 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3748 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3749 [SERVICE_FAILED] = "failed",
3750 [SERVICE_AUTO_RESTART] = "auto-restart",
3753 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3755 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3756 [SERVICE_RESTART_NO] = "no",
3757 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3758 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3759 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3760 [SERVICE_RESTART_ALWAYS] = "always"
3763 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3765 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3766 [SERVICE_SIMPLE] = "simple",
3767 [SERVICE_FORKING] = "forking",
3768 [SERVICE_ONESHOT] = "oneshot",
3769 [SERVICE_DBUS] = "dbus",
3770 [SERVICE_NOTIFY] = "notify",
3771 [SERVICE_IDLE] = "idle"
3774 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3776 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3777 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3778 [SERVICE_EXEC_START] = "ExecStart",
3779 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3780 [SERVICE_EXEC_RELOAD] = "ExecReload",
3781 [SERVICE_EXEC_STOP] = "ExecStop",
3782 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3785 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3787 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3788 [NOTIFY_NONE] = "none",
3789 [NOTIFY_MAIN] = "main",
3790 [NOTIFY_ALL] = "all"
3793 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3795 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3796 [SERVICE_SUCCESS] = "success",
3797 [SERVICE_FAILURE_RESOURCES] = "resources",
3798 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3799 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3800 [SERVICE_FAILURE_SIGNAL] = "signal",
3801 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3802 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3803 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3806 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3808 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3809 [SERVICE_START_LIMIT_NONE] = "none",
3810 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3811 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3812 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3814 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3816 const UnitVTable service_vtable = {
3817 .object_size = sizeof(Service),
3824 .exec_context_offset = offsetof(Service, exec_context),
3825 .exec_section = "Service",
3827 .init = service_init,
3828 .done = service_done,
3829 .load = service_load,
3831 .coldplug = service_coldplug,
3833 .dump = service_dump,
3835 .start = service_start,
3836 .stop = service_stop,
3837 .reload = service_reload,
3839 .can_reload = service_can_reload,
3841 .kill = service_kill,
3843 .serialize = service_serialize,
3844 .deserialize_item = service_deserialize_item,
3846 .active_state = service_active_state,
3847 .sub_state_to_string = service_sub_state_to_string,
3849 .check_gc = service_check_gc,
3850 .check_snapshot = service_check_snapshot,
3852 .sigchld_event = service_sigchld_event,
3853 .timer_event = service_timer_event,
3854 .fd_event = service_fd_event,
3856 .reset_failed = service_reset_failed,
3858 .cgroup_notify_empty = service_cgroup_notify_event,
3859 .notify_message = service_notify_message,
3861 .bus_name_owner_change = service_bus_name_owner_change,
3862 .bus_query_pid_done = service_bus_query_pid_done,
3864 .bus_interface = "org.freedesktop.systemd1.Service",
3865 .bus_message_handler = bus_service_message_handler,
3866 .bus_invalidating_properties = bus_service_invalidating_properties,
3868 #ifdef HAVE_SYSV_COMPAT
3869 .enumerate = service_enumerate,
3871 .status_message_formats = {
3872 .starting_stopping = {
3873 [0] = "Starting %s...",
3874 [1] = "Stopping %s...",
3876 .finished_start_job = {
3877 [JOB_DONE] = "Started %s.",
3878 [JOB_FAILED] = "Failed to start %s.",
3879 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3880 [JOB_TIMEOUT] = "Timed out starting %s.",
3882 .finished_stop_job = {
3883 [JOB_DONE] = "Stopped %s.",
3884 [JOB_FAILED] = "Stopped (with error) %s.",
3885 [JOB_TIMEOUT] = "Timed out stopping %s.",