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_signal(Service *s, ServiceState state, ServiceResult f);
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_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_WATCHDOG);
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_slice(u);
1232 r = unit_add_default_cgroups(u);
1236 #ifdef HAVE_SYSV_COMPAT
1237 r = sysv_fix_order(s);
1242 r = fsck_fix_order(s);
1247 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1250 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1251 s->notify_access = NOTIFY_MAIN;
1253 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1254 s->notify_access = NOTIFY_MAIN;
1256 if (s->type == SERVICE_DBUS || s->bus_name) {
1257 r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
1258 SPECIAL_DBUS_SOCKET, NULL, true);
1263 if (UNIT(s)->default_dependencies) {
1264 r = service_add_default_dependencies(s);
1269 r = unit_exec_context_defaults(u, &s->exec_context);
1274 return service_verify(s);
1277 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1279 ServiceExecCommand c;
1280 Service *s = SERVICE(u);
1281 const char *prefix2;
1282 _cleanup_free_ char *p2 = NULL;
1286 p2 = strappend(prefix, "\t");
1287 prefix2 = p2 ? p2 : prefix;
1290 "%sService State: %s\n"
1292 "%sReload Result: %s\n"
1293 "%sPermissionsStartOnly: %s\n"
1294 "%sRootDirectoryStartOnly: %s\n"
1295 "%sRemainAfterExit: %s\n"
1296 "%sGuessMainPID: %s\n"
1299 "%sNotifyAccess: %s\n",
1300 prefix, service_state_to_string(s->state),
1301 prefix, service_result_to_string(s->result),
1302 prefix, service_result_to_string(s->reload_result),
1303 prefix, yes_no(s->permissions_start_only),
1304 prefix, yes_no(s->root_directory_start_only),
1305 prefix, yes_no(s->remain_after_exit),
1306 prefix, yes_no(s->guess_main_pid),
1307 prefix, service_type_to_string(s->type),
1308 prefix, service_restart_to_string(s->restart),
1309 prefix, notify_access_to_string(s->notify_access));
1311 if (s->control_pid > 0)
1313 "%sControl PID: %lu\n",
1314 prefix, (unsigned long) s->control_pid);
1316 if (s->main_pid > 0)
1319 "%sMain PID Known: %s\n"
1320 "%sMain PID Alien: %s\n",
1321 prefix, (unsigned long) s->main_pid,
1322 prefix, yes_no(s->main_pid_known),
1323 prefix, yes_no(s->main_pid_alien));
1328 prefix, s->pid_file);
1333 "%sBus Name Good: %s\n",
1334 prefix, s->bus_name,
1335 prefix, yes_no(s->bus_name_good));
1337 kill_context_dump(&s->kill_context, f, prefix);
1338 exec_context_dump(&s->exec_context, f, prefix);
1340 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1342 if (!s->exec_command[c])
1345 fprintf(f, "%s-> %s:\n",
1346 prefix, service_exec_command_to_string(c));
1348 exec_command_dump_list(s->exec_command[c], f, prefix2);
1351 #ifdef HAVE_SYSV_COMPAT
1354 "%sSysV Init Script has LSB Header: %s\n"
1355 "%sSysVEnabled: %s\n",
1356 prefix, yes_no(s->sysv_has_lsb),
1357 prefix, yes_no(s->sysv_enabled));
1359 if (s->sysv_start_priority >= 0)
1361 "%sSysVStartPriority: %i\n",
1362 prefix, s->sysv_start_priority);
1364 if (s->sysv_runlevels)
1365 fprintf(f, "%sSysVRunLevels: %s\n",
1366 prefix, s->sysv_runlevels);
1369 if (s->fsck_passno > 0)
1371 "%sFsckPassNo: %i\n",
1372 prefix, s->fsck_passno);
1375 fprintf(f, "%sStatus Text: %s\n",
1376 prefix, s->status_text);
1379 static int service_load_pid_file(Service *s, bool may_warn) {
1380 _cleanup_free_ char *k = NULL;
1389 r = read_one_line_file(s->pid_file, &k);
1392 log_info_unit(UNIT(s)->id,
1393 "PID file %s not readable (yet?) after %s.",
1394 s->pid_file, service_state_to_string(s->state));
1398 r = parse_pid(k, &pid);
1401 log_info_unit(UNIT(s)->id,
1402 "Failed to read PID from file %s: %s",
1403 s->pid_file, strerror(-r));
1407 if (kill(pid, 0) < 0 && errno != EPERM) {
1409 log_info_unit(UNIT(s)->id,
1410 "PID %lu read from file %s does not exist.",
1411 (unsigned long) pid, s->pid_file);
1415 if (s->main_pid_known) {
1416 if (pid == s->main_pid)
1419 log_debug_unit(UNIT(s)->id,
1420 "Main PID changing: %lu -> %lu",
1421 (unsigned long) s->main_pid, (unsigned long) pid);
1422 service_unwatch_main_pid(s);
1423 s->main_pid_known = false;
1425 log_debug_unit(UNIT(s)->id,
1426 "Main PID loaded: %lu", (unsigned long) pid);
1428 r = service_set_main_pid(s, pid);
1432 r = unit_watch_pid(UNIT(s), pid);
1434 /* FIXME: we need to do something here */
1435 log_warning_unit(UNIT(s)->id,
1436 "Failed to watch PID %lu from service %s",
1437 (unsigned long) pid, UNIT(s)->id);
1444 static int service_search_main_pid(Service *s) {
1450 /* If we know it anyway, don't ever fallback to unreliable
1452 if (s->main_pid_known)
1455 if (!s->guess_main_pid)
1458 assert(s->main_pid <= 0);
1460 pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings);
1464 log_debug_unit(UNIT(s)->id,
1465 "Main PID guessed: %lu", (unsigned long) pid);
1466 r = service_set_main_pid(s, pid);
1470 r = unit_watch_pid(UNIT(s), pid);
1472 /* FIXME: we need to do something here */
1473 log_warning_unit(UNIT(s)->id,
1474 "Failed to watch PID %lu from service %s",
1475 (unsigned long) pid, UNIT(s)->id);
1481 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1487 /* Notifies all our sockets when we die */
1489 if (s->socket_fd >= 0)
1492 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1493 if (u->type == UNIT_SOCKET)
1494 socket_notify_service_dead(SOCKET(u), failed_permanent);
1499 static void service_set_state(Service *s, ServiceState state) {
1500 ServiceState old_state;
1501 const UnitActiveState *table;
1504 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1506 old_state = s->state;
1509 service_unwatch_pid_file(s);
1511 if (state != SERVICE_START_PRE &&
1512 state != SERVICE_START &&
1513 state != SERVICE_START_POST &&
1514 state != SERVICE_RELOAD &&
1515 state != SERVICE_STOP &&
1516 state != SERVICE_STOP_SIGTERM &&
1517 state != SERVICE_STOP_SIGKILL &&
1518 state != SERVICE_STOP_POST &&
1519 state != SERVICE_FINAL_SIGTERM &&
1520 state != SERVICE_FINAL_SIGKILL &&
1521 state != SERVICE_AUTO_RESTART)
1522 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1524 if (state != SERVICE_START &&
1525 state != SERVICE_START_POST &&
1526 state != SERVICE_RUNNING &&
1527 state != SERVICE_RELOAD &&
1528 state != SERVICE_STOP &&
1529 state != SERVICE_STOP_SIGTERM &&
1530 state != SERVICE_STOP_SIGKILL) {
1531 service_unwatch_main_pid(s);
1532 s->main_command = NULL;
1535 if (state != SERVICE_START_PRE &&
1536 state != SERVICE_START &&
1537 state != SERVICE_START_POST &&
1538 state != SERVICE_RELOAD &&
1539 state != SERVICE_STOP &&
1540 state != SERVICE_STOP_SIGTERM &&
1541 state != SERVICE_STOP_SIGKILL &&
1542 state != SERVICE_STOP_POST &&
1543 state != SERVICE_FINAL_SIGTERM &&
1544 state != SERVICE_FINAL_SIGKILL) {
1545 service_unwatch_control_pid(s);
1546 s->control_command = NULL;
1547 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1550 if (state == SERVICE_FAILED)
1551 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1553 if (state == SERVICE_DEAD ||
1554 state == SERVICE_STOP ||
1555 state == SERVICE_STOP_SIGTERM ||
1556 state == SERVICE_STOP_SIGKILL ||
1557 state == SERVICE_STOP_POST ||
1558 state == SERVICE_FINAL_SIGTERM ||
1559 state == SERVICE_FINAL_SIGKILL ||
1560 state == SERVICE_AUTO_RESTART)
1561 service_notify_sockets_dead(s, false);
1563 if (state != SERVICE_START_PRE &&
1564 state != SERVICE_START &&
1565 state != SERVICE_START_POST &&
1566 state != SERVICE_RUNNING &&
1567 state != SERVICE_RELOAD &&
1568 state != SERVICE_STOP &&
1569 state != SERVICE_STOP_SIGTERM &&
1570 state != SERVICE_STOP_SIGKILL &&
1571 state != SERVICE_STOP_POST &&
1572 state != SERVICE_FINAL_SIGTERM &&
1573 state != SERVICE_FINAL_SIGKILL &&
1574 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1575 service_close_socket_fd(s);
1576 service_connection_unref(s);
1579 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1580 service_stop_watchdog(s);
1582 /* For the inactive states unit_notify() will trim the cgroup,
1583 * but for exit we have to do that ourselves... */
1584 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1585 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1587 if (old_state != state)
1588 log_debug_unit(UNIT(s)->id,
1589 "%s changed %s -> %s", UNIT(s)->id,
1590 service_state_to_string(old_state),
1591 service_state_to_string(state));
1593 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1594 s->reload_result = SERVICE_SUCCESS;
1597 static int service_coldplug(Unit *u) {
1598 Service *s = SERVICE(u);
1602 assert(s->state == SERVICE_DEAD);
1604 if (s->deserialized_state != s->state) {
1606 if (s->deserialized_state == SERVICE_START_PRE ||
1607 s->deserialized_state == SERVICE_START ||
1608 s->deserialized_state == SERVICE_START_POST ||
1609 s->deserialized_state == SERVICE_RELOAD ||
1610 s->deserialized_state == SERVICE_STOP ||
1611 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1612 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1613 s->deserialized_state == SERVICE_STOP_POST ||
1614 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1615 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1616 s->deserialized_state == SERVICE_AUTO_RESTART) {
1617 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1620 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1622 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1628 if ((s->deserialized_state == SERVICE_START &&
1629 (s->type == SERVICE_FORKING ||
1630 s->type == SERVICE_DBUS ||
1631 s->type == SERVICE_ONESHOT ||
1632 s->type == SERVICE_NOTIFY)) ||
1633 s->deserialized_state == SERVICE_START_POST ||
1634 s->deserialized_state == SERVICE_RUNNING ||
1635 s->deserialized_state == SERVICE_RELOAD ||
1636 s->deserialized_state == SERVICE_STOP ||
1637 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1638 s->deserialized_state == SERVICE_STOP_SIGKILL)
1639 if (s->main_pid > 0) {
1640 r = unit_watch_pid(UNIT(s), s->main_pid);
1645 if (s->deserialized_state == SERVICE_START_PRE ||
1646 s->deserialized_state == SERVICE_START ||
1647 s->deserialized_state == SERVICE_START_POST ||
1648 s->deserialized_state == SERVICE_RELOAD ||
1649 s->deserialized_state == SERVICE_STOP ||
1650 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1651 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1652 s->deserialized_state == SERVICE_STOP_POST ||
1653 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1654 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1655 if (s->control_pid > 0) {
1656 r = unit_watch_pid(UNIT(s), s->control_pid);
1661 if (s->deserialized_state == SERVICE_START_POST ||
1662 s->deserialized_state == SERVICE_RUNNING)
1663 service_handle_watchdog(s);
1665 service_set_state(s, s->deserialized_state);
1670 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1674 unsigned rn_fds = 0;
1681 if (s->socket_fd >= 0)
1684 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1689 if (u->type != UNIT_SOCKET)
1694 r = socket_collect_fds(sock, &cfds, &cn_fds);
1707 t = new(int, rn_fds+cn_fds);
1714 memcpy(t, rfds, rn_fds * sizeof(int));
1715 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1720 rn_fds = rn_fds+cn_fds;
1735 static int service_spawn(
1740 bool apply_permissions,
1742 bool apply_tty_stdin,
1743 bool set_notify_socket,
1750 _cleanup_free_ int *fdsbuf = NULL;
1751 unsigned n_fds = 0, n_env = 0;
1752 _cleanup_strv_free_ char
1753 **argv = NULL, **final_env = NULL, **our_env = NULL;
1760 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1761 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1762 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1764 if (s->socket_fd >= 0) {
1765 fds = &s->socket_fd;
1768 r = service_collect_fds(s, &fdsbuf, &n_fds);
1776 if (timeout && s->timeout_start_usec) {
1777 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1778 s->timeout_start_usec, &s->timer_watch);
1782 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1784 argv = unit_full_printf_strv(UNIT(s), c->argv);
1790 our_env = new0(char*, 5);
1796 if (set_notify_socket)
1797 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1802 if (s->main_pid > 0)
1803 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1808 if (s->watchdog_usec > 0)
1809 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1814 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1815 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1820 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1834 UNIT(s)->manager->confirm_spawn,
1835 UNIT(s)->cgroup_bondings,
1836 UNIT(s)->cgroup_attributes,
1837 is_control ? "control" : NULL,
1839 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1844 r = unit_watch_pid(UNIT(s), pid);
1846 /* FIXME: we need to do something here */
1855 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1860 static int main_pid_good(Service *s) {
1863 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1866 /* If we know the pid file, then lets just check if it is
1868 if (s->main_pid_known) {
1870 /* If it's an alien child let's check if it is still
1872 if (s->main_pid_alien && s->main_pid > 0)
1873 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1875 /* .. otherwise assume we'll get a SIGCHLD for it,
1876 * which we really should wait for to collect exit
1877 * status and code */
1878 return s->main_pid > 0;
1881 /* We don't know the pid */
1885 _pure_ static int control_pid_good(Service *s) {
1888 return s->control_pid > 0;
1891 static int cgroup_good(Service *s) {
1896 r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
1903 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1907 if (f != SERVICE_SUCCESS)
1910 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1912 if (allow_restart &&
1913 !s->forbid_restart &&
1914 (s->restart == SERVICE_RESTART_ALWAYS ||
1915 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1916 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1917 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1918 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1919 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1920 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1921 (s->result != SERVICE_FAILURE_SIGNAL ||
1922 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1925 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1929 service_set_state(s, SERVICE_AUTO_RESTART);
1932 s->forbid_restart = false;
1934 /* we want fresh tmpdirs in case service is started again immediately */
1935 exec_context_tmp_dirs_done(&s->exec_context);
1940 log_warning_unit(UNIT(s)->id,
1941 "%s failed to run install restart timer: %s",
1942 UNIT(s)->id, strerror(-r));
1943 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1946 static void service_enter_stop_post(Service *s, ServiceResult f) {
1950 if (f != SERVICE_SUCCESS)
1953 service_unwatch_control_pid(s);
1955 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1956 if (s->control_command) {
1957 s->control_command_id = SERVICE_EXEC_STOP_POST;
1959 r = service_spawn(s,
1963 !s->permissions_start_only,
1964 !s->root_directory_start_only,
1973 service_set_state(s, SERVICE_STOP_POST);
1975 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1980 log_warning_unit(UNIT(s)->id,
1981 "%s failed to run 'stop-post' task: %s",
1982 UNIT(s)->id, strerror(-r));
1983 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1986 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1991 if (f != SERVICE_SUCCESS)
1994 r = unit_kill_context(
1997 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2005 if (s->timeout_stop_usec > 0) {
2006 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2007 s->timeout_stop_usec, &s->timer_watch);
2012 service_set_state(s, state);
2013 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2014 service_enter_stop_post(s, SERVICE_SUCCESS);
2016 service_enter_dead(s, SERVICE_SUCCESS, true);
2021 log_warning_unit(UNIT(s)->id,
2022 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2024 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2025 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2027 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2030 static void service_enter_stop(Service *s, ServiceResult f) {
2035 if (f != SERVICE_SUCCESS)
2038 service_unwatch_control_pid(s);
2040 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2041 if (s->control_command) {
2042 s->control_command_id = SERVICE_EXEC_STOP;
2044 r = service_spawn(s,
2048 !s->permissions_start_only,
2049 !s->root_directory_start_only,
2057 service_set_state(s, SERVICE_STOP);
2059 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2064 log_warning_unit(UNIT(s)->id,
2065 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2066 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2069 static void service_enter_running(Service *s, ServiceResult f) {
2070 int main_pid_ok, cgroup_ok;
2073 if (f != SERVICE_SUCCESS)
2076 main_pid_ok = main_pid_good(s);
2077 cgroup_ok = cgroup_good(s);
2079 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2080 (s->bus_name_good || s->type != SERVICE_DBUS))
2081 service_set_state(s, SERVICE_RUNNING);
2082 else if (s->remain_after_exit)
2083 service_set_state(s, SERVICE_EXITED);
2085 service_enter_stop(s, SERVICE_SUCCESS);
2088 static void service_enter_start_post(Service *s) {
2092 service_unwatch_control_pid(s);
2094 if (s->watchdog_usec > 0)
2095 service_reset_watchdog(s);
2097 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2098 if (s->control_command) {
2099 s->control_command_id = SERVICE_EXEC_START_POST;
2101 r = service_spawn(s,
2105 !s->permissions_start_only,
2106 !s->root_directory_start_only,
2114 service_set_state(s, SERVICE_START_POST);
2116 service_enter_running(s, SERVICE_SUCCESS);
2121 log_warning_unit(UNIT(s)->id,
2122 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2123 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2126 static void service_enter_start(Service *s) {
2133 assert(s->exec_command[SERVICE_EXEC_START]);
2134 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2136 if (s->type == SERVICE_FORKING)
2137 service_unwatch_control_pid(s);
2139 service_unwatch_main_pid(s);
2141 /* We want to ensure that nobody leaks processes from
2142 * START_PRE here, so let's go on a killing spree, People
2143 * should not spawn long running processes from START_PRE. */
2144 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2146 if (s->type == SERVICE_FORKING) {
2147 s->control_command_id = SERVICE_EXEC_START;
2148 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2150 s->main_command = NULL;
2152 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2153 s->control_command = NULL;
2155 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2158 r = service_spawn(s,
2160 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2161 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2166 s->notify_access != NOTIFY_NONE,
2172 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2173 /* For simple services we immediately start
2174 * the START_POST binaries. */
2176 service_set_main_pid(s, pid);
2177 service_enter_start_post(s);
2179 } else if (s->type == SERVICE_FORKING) {
2181 /* For forking services we wait until the start
2182 * process exited. */
2184 s->control_pid = pid;
2185 service_set_state(s, SERVICE_START);
2187 } else if (s->type == SERVICE_ONESHOT ||
2188 s->type == SERVICE_DBUS ||
2189 s->type == SERVICE_NOTIFY) {
2191 /* For oneshot services we wait until the start
2192 * process exited, too, but it is our main process. */
2194 /* For D-Bus services we know the main pid right away,
2195 * but wait for the bus name to appear on the
2196 * bus. Notify services are similar. */
2198 service_set_main_pid(s, pid);
2199 service_set_state(s, SERVICE_START);
2201 assert_not_reached("Unknown service type");
2206 log_warning_unit(UNIT(s)->id,
2207 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2208 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2211 static void service_enter_start_pre(Service *s) {
2216 service_unwatch_control_pid(s);
2218 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2219 if (s->control_command) {
2221 /* Before we start anything, let's clear up what might
2222 * be left from previous runs. */
2223 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
2224 true,true, NULL, "control");
2226 s->control_command_id = SERVICE_EXEC_START_PRE;
2228 r = service_spawn(s,
2232 !s->permissions_start_only,
2233 !s->root_directory_start_only,
2241 service_set_state(s, SERVICE_START_PRE);
2243 service_enter_start(s);
2248 log_warning_unit(UNIT(s)->id,
2249 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2250 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2253 static void service_enter_restart(Service *s) {
2258 dbus_error_init(&error);
2260 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2261 /* Don't restart things if we are going down anyway */
2262 log_info_unit(UNIT(s)->id,
2263 "Stop job pending for unit, delaying automatic restart.");
2265 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2272 /* Any units that are bound to this service must also be
2273 * restarted. We use JOB_RESTART (instead of the more obvious
2274 * JOB_START) here so that those dependency jobs will be added
2276 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2280 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2281 * it will be canceled as part of the service_stop() call that
2282 * is executed as part of JOB_RESTART. */
2284 log_debug_unit(UNIT(s)->id,
2285 "%s scheduled restart job.", UNIT(s)->id);
2289 log_warning_unit(UNIT(s)->id,
2290 "%s failed to schedule restart job: %s",
2291 UNIT(s)->id, bus_error(&error, -r));
2292 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2294 dbus_error_free(&error);
2297 static void service_enter_reload(Service *s) {
2302 service_unwatch_control_pid(s);
2304 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2305 if (s->control_command) {
2306 s->control_command_id = SERVICE_EXEC_RELOAD;
2308 r = service_spawn(s,
2312 !s->permissions_start_only,
2313 !s->root_directory_start_only,
2321 service_set_state(s, SERVICE_RELOAD);
2323 service_enter_running(s, SERVICE_SUCCESS);
2328 log_warning_unit(UNIT(s)->id,
2329 "%s failed to run 'reload' task: %s",
2330 UNIT(s)->id, strerror(-r));
2331 s->reload_result = SERVICE_FAILURE_RESOURCES;
2332 service_enter_running(s, SERVICE_SUCCESS);
2335 static void service_run_next_control(Service *s) {
2339 assert(s->control_command);
2340 assert(s->control_command->command_next);
2342 assert(s->control_command_id != SERVICE_EXEC_START);
2344 s->control_command = s->control_command->command_next;
2345 service_unwatch_control_pid(s);
2347 r = service_spawn(s,
2351 !s->permissions_start_only,
2352 !s->root_directory_start_only,
2353 s->control_command_id == SERVICE_EXEC_START_PRE ||
2354 s->control_command_id == SERVICE_EXEC_STOP_POST,
2364 log_warning_unit(UNIT(s)->id,
2365 "%s failed to run next control task: %s",
2366 UNIT(s)->id, strerror(-r));
2368 if (s->state == SERVICE_START_PRE)
2369 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2370 else if (s->state == SERVICE_STOP)
2371 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2372 else if (s->state == SERVICE_STOP_POST)
2373 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2374 else if (s->state == SERVICE_RELOAD) {
2375 s->reload_result = SERVICE_FAILURE_RESOURCES;
2376 service_enter_running(s, SERVICE_SUCCESS);
2378 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2381 static void service_run_next_main(Service *s) {
2386 assert(s->main_command);
2387 assert(s->main_command->command_next);
2388 assert(s->type == SERVICE_ONESHOT);
2390 s->main_command = s->main_command->command_next;
2391 service_unwatch_main_pid(s);
2393 r = service_spawn(s,
2400 s->notify_access != NOTIFY_NONE,
2406 service_set_main_pid(s, pid);
2411 log_warning_unit(UNIT(s)->id,
2412 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2413 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2416 static int service_start_limit_test(Service *s) {
2419 if (ratelimit_test(&s->start_limit))
2422 switch (s->start_limit_action) {
2424 case SERVICE_START_LIMIT_NONE:
2425 log_warning_unit(UNIT(s)->id,
2426 "%s start request repeated too quickly, refusing to start.",
2430 case SERVICE_START_LIMIT_REBOOT: {
2434 dbus_error_init(&error);
2436 log_warning_unit(UNIT(s)->id,
2437 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2439 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2440 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2441 true, &error, NULL);
2443 log_error_unit(UNIT(s)->id,
2444 "Failed to reboot: %s.", bus_error(&error, r));
2445 dbus_error_free(&error);
2451 case SERVICE_START_LIMIT_REBOOT_FORCE:
2452 log_warning_unit(UNIT(s)->id,
2453 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2454 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2457 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2458 log_warning_unit(UNIT(s)->id,
2459 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2461 reboot(RB_AUTOBOOT);
2465 log_error_unit(UNIT(s)->id,
2466 "start limit action=%i", s->start_limit_action);
2467 assert_not_reached("Unknown StartLimitAction.");
2473 static int service_start(Unit *u) {
2474 Service *s = SERVICE(u);
2479 /* We cannot fulfill this request right now, try again later
2481 if (s->state == SERVICE_STOP ||
2482 s->state == SERVICE_STOP_SIGTERM ||
2483 s->state == SERVICE_STOP_SIGKILL ||
2484 s->state == SERVICE_STOP_POST ||
2485 s->state == SERVICE_FINAL_SIGTERM ||
2486 s->state == SERVICE_FINAL_SIGKILL)
2489 /* Already on it! */
2490 if (s->state == SERVICE_START_PRE ||
2491 s->state == SERVICE_START ||
2492 s->state == SERVICE_START_POST)
2495 /* A service that will be restarted must be stopped first to
2496 * trigger BindsTo and/or OnFailure dependencies. If a user
2497 * does not want to wait for the holdoff time to elapse, the
2498 * service should be manually restarted, not started. We
2499 * simply return EAGAIN here, so that any start jobs stay
2500 * queued, and assume that the auto restart timer will
2501 * eventually trigger the restart. */
2502 if (s->state == SERVICE_AUTO_RESTART)
2505 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2507 /* Make sure we don't enter a busy loop of some kind. */
2508 r = service_start_limit_test(s);
2510 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2514 s->result = SERVICE_SUCCESS;
2515 s->reload_result = SERVICE_SUCCESS;
2516 s->main_pid_known = false;
2517 s->main_pid_alien = false;
2518 s->forbid_restart = false;
2520 service_enter_start_pre(s);
2524 static int service_stop(Unit *u) {
2525 Service *s = SERVICE(u);
2529 /* Don't create restart jobs from here. */
2530 s->forbid_restart = true;
2533 if (s->state == SERVICE_STOP ||
2534 s->state == SERVICE_STOP_SIGTERM ||
2535 s->state == SERVICE_STOP_SIGKILL ||
2536 s->state == SERVICE_STOP_POST ||
2537 s->state == SERVICE_FINAL_SIGTERM ||
2538 s->state == SERVICE_FINAL_SIGKILL)
2541 /* A restart will be scheduled or is in progress. */
2542 if (s->state == SERVICE_AUTO_RESTART) {
2543 service_set_state(s, SERVICE_DEAD);
2547 /* If there's already something running we go directly into
2549 if (s->state == SERVICE_START_PRE ||
2550 s->state == SERVICE_START ||
2551 s->state == SERVICE_START_POST ||
2552 s->state == SERVICE_RELOAD) {
2553 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2557 assert(s->state == SERVICE_RUNNING ||
2558 s->state == SERVICE_EXITED);
2560 service_enter_stop(s, SERVICE_SUCCESS);
2564 static int service_reload(Unit *u) {
2565 Service *s = SERVICE(u);
2569 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2571 service_enter_reload(s);
2575 _pure_ static bool service_can_reload(Unit *u) {
2576 Service *s = SERVICE(u);
2580 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2583 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2584 Service *s = SERVICE(u);
2590 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2591 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2592 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2594 if (s->control_pid > 0)
2595 unit_serialize_item_format(u, f, "control-pid", "%lu",
2596 (unsigned long) s->control_pid);
2598 if (s->main_pid_known && s->main_pid > 0)
2599 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2601 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2604 unit_serialize_item(u, f, "status-text", s->status_text);
2606 /* FIXME: There's a minor uncleanliness here: if there are
2607 * multiple commands attached here, we will start from the
2608 * first one again */
2609 if (s->control_command_id >= 0)
2610 unit_serialize_item(u, f, "control-command",
2611 service_exec_command_to_string(s->control_command_id));
2613 if (s->socket_fd >= 0) {
2616 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2619 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2622 if (s->main_exec_status.pid > 0) {
2623 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2624 (unsigned long) s->main_exec_status.pid);
2625 dual_timestamp_serialize(f, "main-exec-status-start",
2626 &s->main_exec_status.start_timestamp);
2627 dual_timestamp_serialize(f, "main-exec-status-exit",
2628 &s->main_exec_status.exit_timestamp);
2630 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2631 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2632 s->main_exec_status.code);
2633 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2634 s->main_exec_status.status);
2637 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2638 dual_timestamp_serialize(f, "watchdog-timestamp",
2639 &s->watchdog_timestamp);
2641 if (s->exec_context.tmp_dir)
2642 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2644 if (s->exec_context.var_tmp_dir)
2645 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
2650 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2651 Service *s = SERVICE(u);
2658 if (streq(key, "state")) {
2661 state = service_state_from_string(value);
2663 log_debug_unit(u->id, "Failed to parse state value %s", value);
2665 s->deserialized_state = state;
2666 } else if (streq(key, "result")) {
2669 f = service_result_from_string(value);
2671 log_debug_unit(u->id, "Failed to parse result value %s", value);
2672 else if (f != SERVICE_SUCCESS)
2675 } else if (streq(key, "reload-result")) {
2678 f = service_result_from_string(value);
2680 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2681 else if (f != SERVICE_SUCCESS)
2682 s->reload_result = f;
2684 } else if (streq(key, "control-pid")) {
2687 if (parse_pid(value, &pid) < 0)
2688 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2690 s->control_pid = pid;
2691 } else if (streq(key, "main-pid")) {
2694 if (parse_pid(value, &pid) < 0)
2695 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2697 service_set_main_pid(s, (pid_t) pid);
2698 } else if (streq(key, "main-pid-known")) {
2701 b = parse_boolean(value);
2703 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2705 s->main_pid_known = b;
2706 } else if (streq(key, "status-text")) {
2713 free(s->status_text);
2717 } else if (streq(key, "control-command")) {
2718 ServiceExecCommand id;
2720 id = service_exec_command_from_string(value);
2722 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2724 s->control_command_id = id;
2725 s->control_command = s->exec_command[id];
2727 } else if (streq(key, "socket-fd")) {
2730 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2731 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2734 if (s->socket_fd >= 0)
2735 close_nointr_nofail(s->socket_fd);
2736 s->socket_fd = fdset_remove(fds, fd);
2738 } else if (streq(key, "main-exec-status-pid")) {
2741 if (parse_pid(value, &pid) < 0)
2742 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2744 s->main_exec_status.pid = pid;
2745 } else if (streq(key, "main-exec-status-code")) {
2748 if (safe_atoi(value, &i) < 0)
2749 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2751 s->main_exec_status.code = i;
2752 } else if (streq(key, "main-exec-status-status")) {
2755 if (safe_atoi(value, &i) < 0)
2756 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2758 s->main_exec_status.status = i;
2759 } else if (streq(key, "main-exec-status-start"))
2760 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2761 else if (streq(key, "main-exec-status-exit"))
2762 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2763 else if (streq(key, "watchdog-timestamp"))
2764 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2765 else if (streq(key, "tmp-dir")) {
2772 s->exec_context.tmp_dir = t;
2773 } else if (streq(key, "var-tmp-dir")) {
2780 s->exec_context.var_tmp_dir = t;
2782 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2787 _pure_ static UnitActiveState service_active_state(Unit *u) {
2788 const UnitActiveState *table;
2792 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2794 return table[SERVICE(u)->state];
2797 static const char *service_sub_state_to_string(Unit *u) {
2800 return service_state_to_string(SERVICE(u)->state);
2803 static bool service_check_gc(Unit *u) {
2804 Service *s = SERVICE(u);
2808 /* Never clean up services that still have a process around,
2809 * even if the service is formally dead. */
2810 if (cgroup_good(s) > 0 ||
2811 main_pid_good(s) > 0 ||
2812 control_pid_good(s) > 0)
2815 #ifdef HAVE_SYSV_COMPAT
2823 _pure_ static bool service_check_snapshot(Unit *u) {
2824 Service *s = SERVICE(u);
2828 return !s->got_socket_fd;
2831 static int service_retry_pid_file(Service *s) {
2834 assert(s->pid_file);
2835 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2837 r = service_load_pid_file(s, false);
2841 service_unwatch_pid_file(s);
2843 service_enter_running(s, SERVICE_SUCCESS);
2847 static int service_watch_pid_file(Service *s) {
2850 log_debug_unit(UNIT(s)->id,
2851 "Setting watch for %s's PID file %s",
2852 UNIT(s)->id, s->pid_file_pathspec->path);
2853 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2857 /* the pidfile might have appeared just before we set the watch */
2858 log_debug_unit(UNIT(s)->id,
2859 "Trying to read %s's PID file %s in case it changed",
2860 UNIT(s)->id, s->pid_file_pathspec->path);
2861 service_retry_pid_file(s);
2865 log_error_unit(UNIT(s)->id,
2866 "Failed to set a watch for %s's PID file %s: %s",
2867 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2868 service_unwatch_pid_file(s);
2872 static int service_demand_pid_file(Service *s) {
2875 assert(s->pid_file);
2876 assert(!s->pid_file_pathspec);
2878 ps = new0(PathSpec, 1);
2882 ps->path = strdup(s->pid_file);
2888 path_kill_slashes(ps->path);
2890 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2891 * keep their PID file open all the time. */
2892 ps->type = PATH_MODIFIED;
2893 ps->inotify_fd = -1;
2895 s->pid_file_pathspec = ps;
2897 return service_watch_pid_file(s);
2900 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2901 Service *s = SERVICE(u);
2905 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2906 assert(s->pid_file_pathspec);
2907 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2909 log_debug_unit(u->id, "inotify event for %s", u->id);
2911 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2914 if (service_retry_pid_file(s) == 0)
2917 if (service_watch_pid_file(s) < 0)
2922 service_unwatch_pid_file(s);
2923 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2926 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2927 Service *s = SERVICE(u);
2933 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2934 is_clean_exit_lsb(code, status, &s->success_status))
2935 f = SERVICE_SUCCESS;
2936 else if (code == CLD_EXITED)
2937 f = SERVICE_FAILURE_EXIT_CODE;
2938 else if (code == CLD_KILLED)
2939 f = SERVICE_FAILURE_SIGNAL;
2940 else if (code == CLD_DUMPED)
2941 f = SERVICE_FAILURE_CORE_DUMP;
2943 assert_not_reached("Unknown code");
2945 if (s->main_pid == pid) {
2946 /* Forking services may occasionally move to a new PID.
2947 * As long as they update the PID file before exiting the old
2948 * PID, they're fine. */
2949 if (service_load_pid_file(s, false) == 0)
2953 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2955 if (s->main_command) {
2956 /* If this is not a forking service than the
2957 * main process got started and hence we copy
2958 * the exit status so that it is recorded both
2959 * as main and as control process exit
2962 s->main_command->exec_status = s->main_exec_status;
2964 if (s->main_command->ignore)
2965 f = SERVICE_SUCCESS;
2966 } else if (s->exec_command[SERVICE_EXEC_START]) {
2968 /* If this is a forked process, then we should
2969 * ignore the return value if this was
2970 * configured for the starter process */
2972 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2973 f = SERVICE_SUCCESS;
2976 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2978 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2979 u->id, sigchld_code_to_string(code), status,
2980 strna(code == CLD_EXITED
2981 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2982 : signal_to_string(status)),
2983 "EXIT_CODE=%s", sigchld_code_to_string(code),
2984 "EXIT_STATUS=%i", status,
2987 if (f != SERVICE_SUCCESS)
2990 if (s->main_command &&
2991 s->main_command->command_next &&
2992 f == SERVICE_SUCCESS) {
2994 /* There is another command to *
2995 * execute, so let's do that. */
2997 log_debug_unit(u->id,
2998 "%s running next main command for state %s",
2999 u->id, service_state_to_string(s->state));
3000 service_run_next_main(s);
3004 /* The service exited, so the service is officially
3006 s->main_command = NULL;
3010 case SERVICE_START_POST:
3011 case SERVICE_RELOAD:
3013 /* Need to wait until the operation is
3018 if (s->type == SERVICE_ONESHOT) {
3019 /* This was our main goal, so let's go on */
3020 if (f == SERVICE_SUCCESS)
3021 service_enter_start_post(s);
3023 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3029 case SERVICE_RUNNING:
3030 service_enter_running(s, f);
3033 case SERVICE_STOP_SIGTERM:
3034 case SERVICE_STOP_SIGKILL:
3036 if (!control_pid_good(s))
3037 service_enter_stop_post(s, f);
3039 /* If there is still a control process, wait for that first */
3043 assert_not_reached("Uh, main process died at wrong time.");
3047 } else if (s->control_pid == pid) {
3051 if (s->control_command) {
3052 exec_status_exit(&s->control_command->exec_status,
3053 &s->exec_context, pid, code, status);
3055 if (s->control_command->ignore)
3056 f = SERVICE_SUCCESS;
3059 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3060 "%s: control process exited, code=%s status=%i",
3061 u->id, sigchld_code_to_string(code), status);
3063 if (f != SERVICE_SUCCESS)
3066 /* Immediately get rid of the cgroup, so that the
3067 * kernel doesn't delay the cgroup empty messages for
3068 * the service cgroup any longer than necessary */
3069 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
3070 true, true, NULL, "control");
3072 if (s->control_command &&
3073 s->control_command->command_next &&
3074 f == SERVICE_SUCCESS) {
3076 /* There is another command to *
3077 * execute, so let's do that. */
3079 log_debug_unit(u->id,
3080 "%s running next control command for state %s",
3081 u->id, service_state_to_string(s->state));
3082 service_run_next_control(s);
3085 /* No further commands for this step, so let's
3086 * figure out what to do next */
3088 s->control_command = NULL;
3089 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3091 log_debug_unit(u->id,
3092 "%s got final SIGCHLD for state %s",
3093 u->id, service_state_to_string(s->state));
3097 case SERVICE_START_PRE:
3098 if (f == SERVICE_SUCCESS)
3099 service_enter_start(s);
3101 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3105 if (s->type != SERVICE_FORKING)
3106 /* Maybe spurious event due to a reload that changed the type? */
3109 if (f != SERVICE_SUCCESS) {
3110 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3115 bool has_start_post;
3118 /* Let's try to load the pid file here if we can.
3119 * The PID file might actually be created by a START_POST
3120 * script. In that case don't worry if the loading fails. */
3122 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3123 r = service_load_pid_file(s, !has_start_post);
3124 if (!has_start_post && r < 0) {
3125 r = service_demand_pid_file(s);
3126 if (r < 0 || !cgroup_good(s))
3127 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3131 service_search_main_pid(s);
3133 service_enter_start_post(s);
3136 case SERVICE_START_POST:
3137 if (f != SERVICE_SUCCESS) {
3138 service_enter_stop(s, f);
3145 r = service_load_pid_file(s, true);
3147 r = service_demand_pid_file(s);
3148 if (r < 0 || !cgroup_good(s))
3149 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3153 service_search_main_pid(s);
3155 service_enter_running(s, SERVICE_SUCCESS);
3158 case SERVICE_RELOAD:
3159 if (f == SERVICE_SUCCESS) {
3160 service_load_pid_file(s, true);
3161 service_search_main_pid(s);
3164 s->reload_result = f;
3165 service_enter_running(s, SERVICE_SUCCESS);
3169 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3172 case SERVICE_STOP_SIGTERM:
3173 case SERVICE_STOP_SIGKILL:
3174 if (main_pid_good(s) <= 0)
3175 service_enter_stop_post(s, f);
3177 /* If there is still a service
3178 * process around, wait until
3179 * that one quit, too */
3182 case SERVICE_STOP_POST:
3183 case SERVICE_FINAL_SIGTERM:
3184 case SERVICE_FINAL_SIGKILL:
3185 service_enter_dead(s, f, true);
3189 assert_not_reached("Uh, control process died at wrong time.");
3194 /* Notify clients about changed exit status */
3195 unit_add_to_dbus_queue(u);
3198 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3199 Service *s = SERVICE(u);
3202 assert(elapsed == 1);
3204 if (w == &s->watchdog_watch) {
3205 service_handle_watchdog(s);
3209 assert(w == &s->timer_watch);
3213 case SERVICE_START_PRE:
3215 log_warning_unit(u->id,
3216 "%s operation timed out. Terminating.", u->id);
3217 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3220 case SERVICE_START_POST:
3221 log_warning_unit(u->id,
3222 "%s operation timed out. Stopping.", u->id);
3223 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3226 case SERVICE_RELOAD:
3227 log_warning_unit(u->id,
3228 "%s operation timed out. Stopping.", u->id);
3229 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3230 service_enter_running(s, SERVICE_SUCCESS);
3234 log_warning_unit(u->id,
3235 "%s stopping timed out. Terminating.", u->id);
3236 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3239 case SERVICE_STOP_SIGTERM:
3240 if (s->kill_context.send_sigkill) {
3241 log_warning_unit(u->id,
3242 "%s stopping timed out. Killing.", u->id);
3243 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3245 log_warning_unit(u->id,
3246 "%s stopping timed out. Skipping SIGKILL.", u->id);
3247 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3252 case SERVICE_STOP_SIGKILL:
3253 /* Uh, we sent a SIGKILL and it is still not gone?
3254 * Must be something we cannot kill, so let's just be
3255 * weirded out and continue */
3257 log_warning_unit(u->id,
3258 "%s still around after SIGKILL. Ignoring.", u->id);
3259 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3262 case SERVICE_STOP_POST:
3263 log_warning_unit(u->id,
3264 "%s stopping timed out (2). Terminating.", u->id);
3265 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3268 case SERVICE_FINAL_SIGTERM:
3269 if (s->kill_context.send_sigkill) {
3270 log_warning_unit(u->id,
3271 "%s stopping timed out (2). Killing.", u->id);
3272 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3274 log_warning_unit(u->id,
3275 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3277 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3282 case SERVICE_FINAL_SIGKILL:
3283 log_warning_unit(u->id,
3284 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3285 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3288 case SERVICE_AUTO_RESTART:
3289 log_info_unit(u->id,
3290 "%s holdoff time over, scheduling restart.", u->id);
3291 service_enter_restart(s);
3295 assert_not_reached("Timeout at wrong time.");
3299 static void service_cgroup_notify_event(Unit *u) {
3300 Service *s = SERVICE(u);
3304 log_debug_unit(u->id,
3305 "%s: cgroup is empty", u->id);
3309 /* Waiting for SIGCHLD is usually more interesting,
3310 * because it includes return codes/signals. Which is
3311 * why we ignore the cgroup events for most cases,
3312 * except when we don't know pid which to expect the
3316 case SERVICE_START_POST:
3317 /* If we were hoping for the daemon to write its PID file,
3318 * we can give up now. */
3319 if (s->pid_file_pathspec) {
3320 log_warning_unit(u->id,
3321 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3322 service_unwatch_pid_file(s);
3323 if (s->state == SERVICE_START)
3324 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3326 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3330 case SERVICE_RUNNING:
3331 /* service_enter_running() will figure out what to do */
3332 service_enter_running(s, SERVICE_SUCCESS);
3335 case SERVICE_STOP_SIGTERM:
3336 case SERVICE_STOP_SIGKILL:
3338 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3339 service_enter_stop_post(s, SERVICE_SUCCESS);
3343 case SERVICE_FINAL_SIGTERM:
3344 case SERVICE_FINAL_SIGKILL:
3345 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3346 service_enter_dead(s, SERVICE_SUCCESS, true);
3355 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3356 Service *s = SERVICE(u);
3361 if (s->notify_access == NOTIFY_NONE) {
3362 log_warning_unit(u->id,
3363 "%s: Got notification message from PID %lu, but reception is disabled.",
3364 u->id, (unsigned long) pid);
3368 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3369 log_warning_unit(u->id,
3370 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3371 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3375 log_debug_unit(u->id,
3376 "%s: Got message", u->id);
3378 /* Interpret MAINPID= */
3379 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3380 (s->state == SERVICE_START ||
3381 s->state == SERVICE_START_POST ||
3382 s->state == SERVICE_RUNNING ||
3383 s->state == SERVICE_RELOAD)) {
3385 if (parse_pid(e + 8, &pid) < 0)
3386 log_warning_unit(u->id,
3387 "Failed to parse notification message %s", e);
3389 log_debug_unit(u->id,
3390 "%s: got %s", u->id, e);
3391 service_set_main_pid(s, pid);
3395 /* Interpret READY= */
3396 if (s->type == SERVICE_NOTIFY &&
3397 s->state == SERVICE_START &&
3398 strv_find(tags, "READY=1")) {
3399 log_debug_unit(u->id,
3400 "%s: got READY=1", u->id);
3402 service_enter_start_post(s);
3405 /* Interpret STATUS= */
3406 e = strv_find_prefix(tags, "STATUS=");
3412 if (!utf8_is_valid(e+7)) {
3413 log_warning_unit(u->id,
3414 "Status message in notification is not UTF-8 clean.");
3420 log_error_unit(u->id,
3421 "Failed to allocate string.");
3425 log_debug_unit(u->id,
3426 "%s: got %s", u->id, e);
3428 free(s->status_text);
3431 free(s->status_text);
3432 s->status_text = NULL;
3436 if (strv_find(tags, "WATCHDOG=1")) {
3437 log_debug_unit(u->id,
3438 "%s: got WATCHDOG=1", u->id);
3439 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3440 service_reset_watchdog(s);
3443 /* Notify clients about changed status or main pid */
3444 unit_add_to_dbus_queue(u);
3447 #ifdef HAVE_SYSV_COMPAT
3449 static int service_enumerate(Manager *m) {
3452 _cleanup_closedir_ DIR *d = NULL;
3453 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3454 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3455 _cleanup_set_free_ Set *shutdown_services = NULL;
3462 if (m->running_as != SYSTEMD_SYSTEM)
3465 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3466 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3470 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3481 if (errno != ENOENT)
3482 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3487 while ((de = readdir(d))) {
3490 if (ignore_file(de->d_name))
3493 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3496 if (strlen(de->d_name) < 4)
3499 a = undecchar(de->d_name[1]);
3500 b = undecchar(de->d_name[2]);
3506 fpath = strjoin(path, "/", de->d_name, NULL);
3512 if (access(fpath, X_OK) < 0) {
3514 if (errno != ENOENT)
3515 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3521 name = sysv_translate_name(de->d_name + 3);
3527 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3529 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3533 if (de->d_name[0] == 'S') {
3535 if (rcnd_table[i].type == RUNLEVEL_UP) {
3536 SERVICE(service)->sysv_start_priority_from_rcnd =
3537 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3539 SERVICE(service)->sysv_enabled = true;
3542 r = set_ensure_allocated(&runlevel_services[i],
3543 trivial_hash_func, trivial_compare_func);
3547 r = set_put(runlevel_services[i], service);
3551 } else if (de->d_name[0] == 'K' &&
3552 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3554 r = set_ensure_allocated(&shutdown_services,
3555 trivial_hash_func, trivial_compare_func);
3559 r = set_put(shutdown_services, service);
3566 /* Now we loaded all stubs and are aware of the lowest
3567 start-up priority for all services, not let's actually load
3568 the services, this will also tell us which services are
3569 actually native now */
3570 manager_dispatch_load_queue(m);
3572 /* If this is a native service, rely on native ways to pull in
3573 * a service, don't pull it in via sysv rcN.d links. */
3574 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3575 SET_FOREACH(service, runlevel_services[i], j) {
3576 service = unit_follow_merge(service);
3578 if (service->fragment_path)
3581 r = unit_add_two_dependencies_by_name_inverse(
3582 service, UNIT_AFTER, UNIT_WANTS,
3583 rcnd_table[i].target, NULL, true);
3588 /* We honour K links only for halt/reboot. For the normal
3589 * runlevels we assume the stop jobs will be implicitly added
3590 * by the core logic. Also, we don't really distinguish here
3591 * between the runlevels 0 and 6 and just add them to the
3592 * special shutdown target. */
3593 SET_FOREACH(service, shutdown_services, j) {
3594 service = unit_follow_merge(service);
3596 if (service->fragment_path)
3599 r = unit_add_two_dependencies_by_name(
3600 service, UNIT_BEFORE, UNIT_CONFLICTS,
3601 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3610 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3611 set_free(runlevel_services[i]);
3617 static void service_bus_name_owner_change(
3620 const char *old_owner,
3621 const char *new_owner) {
3623 Service *s = SERVICE(u);
3628 assert(streq(s->bus_name, name));
3629 assert(old_owner || new_owner);
3631 if (old_owner && new_owner)
3632 log_debug_unit(u->id,
3633 "%s's D-Bus name %s changed owner from %s to %s",
3634 u->id, name, old_owner, new_owner);
3636 log_debug_unit(u->id,
3637 "%s's D-Bus name %s no longer registered by %s",
3638 u->id, name, old_owner);
3640 log_debug_unit(u->id,
3641 "%s's D-Bus name %s now registered by %s",
3642 u->id, name, new_owner);
3644 s->bus_name_good = !!new_owner;
3646 if (s->type == SERVICE_DBUS) {
3648 /* service_enter_running() will figure out what to
3650 if (s->state == SERVICE_RUNNING)
3651 service_enter_running(s, SERVICE_SUCCESS);
3652 else if (s->state == SERVICE_START && new_owner)
3653 service_enter_start_post(s);
3655 } else if (new_owner &&
3657 (s->state == SERVICE_START ||
3658 s->state == SERVICE_START_POST ||
3659 s->state == SERVICE_RUNNING ||
3660 s->state == SERVICE_RELOAD)) {
3662 /* Try to acquire PID from bus service */
3663 log_debug_unit(u->id,
3664 "Trying to acquire PID from D-Bus name...");
3666 bus_query_pid(u->manager, name);
3670 static void service_bus_query_pid_done(
3675 Service *s = SERVICE(u);
3680 log_debug_unit(u->id,
3681 "%s's D-Bus name %s is now owned by process %u",
3682 u->id, name, (unsigned) pid);
3684 if (s->main_pid <= 0 &&
3685 (s->state == SERVICE_START ||
3686 s->state == SERVICE_START_POST ||
3687 s->state == SERVICE_RUNNING ||
3688 s->state == SERVICE_RELOAD))
3689 service_set_main_pid(s, pid);
3692 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3697 /* This is called by the socket code when instantiating a new
3698 * service for a stream socket and the socket needs to be
3701 if (UNIT(s)->load_state != UNIT_LOADED)
3704 if (s->socket_fd >= 0)
3707 if (s->state != SERVICE_DEAD)
3711 s->got_socket_fd = true;
3713 unit_ref_set(&s->accept_socket, UNIT(sock));
3715 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3718 static void service_reset_failed(Unit *u) {
3719 Service *s = SERVICE(u);
3723 if (s->state == SERVICE_FAILED)
3724 service_set_state(s, SERVICE_DEAD);
3726 s->result = SERVICE_SUCCESS;
3727 s->reload_result = SERVICE_SUCCESS;
3729 RATELIMIT_RESET(s->start_limit);
3732 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3733 Service *s = SERVICE(u);
3734 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3737 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3738 [SERVICE_DEAD] = "dead",
3739 [SERVICE_START_PRE] = "start-pre",
3740 [SERVICE_START] = "start",
3741 [SERVICE_START_POST] = "start-post",
3742 [SERVICE_RUNNING] = "running",
3743 [SERVICE_EXITED] = "exited",
3744 [SERVICE_RELOAD] = "reload",
3745 [SERVICE_STOP] = "stop",
3746 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3747 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3748 [SERVICE_STOP_POST] = "stop-post",
3749 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3750 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3751 [SERVICE_FAILED] = "failed",
3752 [SERVICE_AUTO_RESTART] = "auto-restart",
3755 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3757 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3758 [SERVICE_RESTART_NO] = "no",
3759 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3760 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3761 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3762 [SERVICE_RESTART_ALWAYS] = "always"
3765 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3767 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3768 [SERVICE_SIMPLE] = "simple",
3769 [SERVICE_FORKING] = "forking",
3770 [SERVICE_ONESHOT] = "oneshot",
3771 [SERVICE_DBUS] = "dbus",
3772 [SERVICE_NOTIFY] = "notify",
3773 [SERVICE_IDLE] = "idle"
3776 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3778 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3779 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3780 [SERVICE_EXEC_START] = "ExecStart",
3781 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3782 [SERVICE_EXEC_RELOAD] = "ExecReload",
3783 [SERVICE_EXEC_STOP] = "ExecStop",
3784 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3787 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3789 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3790 [NOTIFY_NONE] = "none",
3791 [NOTIFY_MAIN] = "main",
3792 [NOTIFY_ALL] = "all"
3795 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3797 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3798 [SERVICE_SUCCESS] = "success",
3799 [SERVICE_FAILURE_RESOURCES] = "resources",
3800 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3801 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3802 [SERVICE_FAILURE_SIGNAL] = "signal",
3803 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3804 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3805 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3808 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3810 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3811 [SERVICE_START_LIMIT_NONE] = "none",
3812 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3813 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3814 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3816 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3818 const UnitVTable service_vtable = {
3819 .object_size = sizeof(Service),
3826 .exec_context_offset = offsetof(Service, exec_context),
3827 .exec_section = "Service",
3829 .init = service_init,
3830 .done = service_done,
3831 .load = service_load,
3833 .coldplug = service_coldplug,
3835 .dump = service_dump,
3837 .start = service_start,
3838 .stop = service_stop,
3839 .reload = service_reload,
3841 .can_reload = service_can_reload,
3843 .kill = service_kill,
3845 .serialize = service_serialize,
3846 .deserialize_item = service_deserialize_item,
3848 .active_state = service_active_state,
3849 .sub_state_to_string = service_sub_state_to_string,
3851 .check_gc = service_check_gc,
3852 .check_snapshot = service_check_snapshot,
3854 .sigchld_event = service_sigchld_event,
3855 .timer_event = service_timer_event,
3856 .fd_event = service_fd_event,
3858 .reset_failed = service_reset_failed,
3860 .cgroup_notify_empty = service_cgroup_notify_event,
3861 .notify_message = service_notify_message,
3863 .bus_name_owner_change = service_bus_name_owner_change,
3864 .bus_query_pid_done = service_bus_query_pid_done,
3866 .bus_interface = "org.freedesktop.systemd1.Service",
3867 .bus_message_handler = bus_service_message_handler,
3868 .bus_invalidating_properties = bus_service_invalidating_properties,
3870 #ifdef HAVE_SYSV_COMPAT
3871 .enumerate = service_enumerate,
3873 .status_message_formats = {
3874 .starting_stopping = {
3875 [0] = "Starting %s...",
3876 [1] = "Stopping %s...",
3878 .finished_start_job = {
3879 [JOB_DONE] = "Started %s.",
3880 [JOB_FAILED] = "Failed to start %s.",
3881 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3882 [JOB_TIMEOUT] = "Timed out starting %s.",
3884 .finished_stop_job = {
3885 [JOB_DONE] = "Stopped %s.",
3886 [JOB_FAILED] = "Stopped (with error) %s.",
3887 [JOB_TIMEOUT] = "Timed out stopping %s.",