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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU 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 "dbus-service.h"
38 #include "bus-errors.h"
39 #include "exit-status.h"
44 #ifdef HAVE_SYSV_COMPAT
46 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
48 typedef enum RunlevelType {
57 const RunlevelType type;
59 /* Standard SysV runlevels for start-up */
60 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
61 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
62 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
63 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
64 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
67 /* SUSE style boot.d */
68 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
71 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
72 /* Debian style rcS.d */
73 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
76 /* Standard SysV runlevels for shutdown */
77 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
78 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
80 /* Note that the order here matters, as we read the
81 directories in this order, and we want to make sure that
82 sysv_start_priority is known when we first load the
83 unit. And that value we only know from S links. Hence
84 UP/SYSINIT must be read before DOWN */
87 #define RUNLEVELS_UP "12345"
88 /* #define RUNLEVELS_DOWN "06" */
89 #define RUNLEVELS_BOOT "bBsS"
92 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
93 [SERVICE_DEAD] = UNIT_INACTIVE,
94 [SERVICE_START_PRE] = UNIT_ACTIVATING,
95 [SERVICE_START] = UNIT_ACTIVATING,
96 [SERVICE_START_POST] = UNIT_ACTIVATING,
97 [SERVICE_RUNNING] = UNIT_ACTIVE,
98 [SERVICE_EXITED] = UNIT_ACTIVE,
99 [SERVICE_RELOAD] = UNIT_RELOADING,
100 [SERVICE_STOP] = UNIT_DEACTIVATING,
101 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
103 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
104 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
105 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
106 [SERVICE_FAILED] = UNIT_FAILED,
107 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
110 static void service_init(Unit *u) {
111 Service *s = SERVICE(u);
114 assert(u->load_state == UNIT_STUB);
116 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
117 s->restart_usec = DEFAULT_RESTART_USEC;
119 s->watchdog_watch.type = WATCH_INVALID;
121 s->timer_watch.type = WATCH_INVALID;
122 #ifdef HAVE_SYSV_COMPAT
123 s->sysv_start_priority = -1;
124 s->sysv_start_priority_from_rcnd = -1;
127 s->guess_main_pid = true;
129 exec_context_init(&s->exec_context);
131 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
133 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
136 static void service_unwatch_control_pid(Service *s) {
139 if (s->control_pid <= 0)
142 unit_unwatch_pid(UNIT(s), s->control_pid);
146 static void service_unwatch_main_pid(Service *s) {
149 if (s->main_pid <= 0)
152 unit_unwatch_pid(UNIT(s), s->main_pid);
156 static void service_unwatch_pid_file(Service *s) {
157 if (!s->pid_file_pathspec)
160 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
161 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
162 path_spec_done(s->pid_file_pathspec);
163 free(s->pid_file_pathspec);
164 s->pid_file_pathspec = NULL;
167 static int service_set_main_pid(Service *s, pid_t pid) {
179 s->main_pid_known = true;
181 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
182 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
183 UNIT(s)->id, (unsigned long) pid);
185 s->main_pid_alien = true;
187 s->main_pid_alien = false;
189 exec_status_start(&s->main_exec_status, pid);
194 static void service_close_socket_fd(Service *s) {
197 if (s->socket_fd < 0)
200 close_nointr_nofail(s->socket_fd);
204 static void service_connection_unref(Service *s) {
207 if (!UNIT_DEREF(s->accept_socket))
210 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
211 unit_ref_unset(&s->accept_socket);
214 static void service_stop_watchdog(Service *s) {
217 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
218 s->watchdog_timestamp.realtime = 0;
219 s->watchdog_timestamp.monotonic = 0;
222 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
224 static void service_handle_watchdog(Service *s) {
230 if (s->watchdog_usec == 0)
233 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
234 if (offset >= s->watchdog_usec) {
235 log_error("%s watchdog timeout!", UNIT(s)->id);
236 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
240 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
242 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
245 static void service_reset_watchdog(Service *s) {
248 dual_timestamp_get(&s->watchdog_timestamp);
249 service_handle_watchdog(s);
252 static void service_done(Unit *u) {
253 Service *s = SERVICE(u);
260 #ifdef HAVE_SYSV_COMPAT
264 free(s->sysv_runlevels);
265 s->sysv_runlevels = NULL;
268 free(s->status_text);
269 s->status_text = NULL;
271 exec_context_done(&s->exec_context);
272 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
273 s->control_command = NULL;
274 s->main_command = NULL;
276 /* This will leak a process, but at least no memory or any of
278 service_unwatch_main_pid(s);
279 service_unwatch_control_pid(s);
280 service_unwatch_pid_file(s);
283 unit_unwatch_bus_name(u, s->bus_name);
288 service_close_socket_fd(s);
289 service_connection_unref(s);
291 unit_ref_unset(&s->accept_socket);
293 service_stop_watchdog(s);
295 unit_unwatch_timer(u, &s->timer_watch);
298 #ifdef HAVE_SYSV_COMPAT
299 static char *sysv_translate_name(const char *name) {
302 if (!(r = new(char, strlen(name) + sizeof(".service"))))
305 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
306 if (endswith(name, ".sh"))
307 /* Drop Debian-style .sh suffix */
308 strcpy(stpcpy(r, name) - 3, ".service");
311 if (startswith(name, "boot."))
312 /* Drop SuSE-style boot. prefix */
313 strcpy(stpcpy(r, name + 5), ".service");
315 #ifdef TARGET_FRUGALWARE
316 if (startswith(name, "rc."))
317 /* Drop Frugalware-style rc. prefix */
318 strcpy(stpcpy(r, name + 3), ".service");
321 /* Normal init scripts */
322 strcpy(stpcpy(r, name), ".service");
327 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
329 /* We silently ignore the $ prefix here. According to the LSB
330 * spec it simply indicates whether something is a
331 * standardized name or a distribution-specific one. Since we
332 * just follow what already exists and do not introduce new
333 * uses or names we don't care who introduced a new name. */
335 static const char * const table[] = {
336 /* LSB defined facilities */
337 "local_fs", SPECIAL_LOCAL_FS_TARGET,
338 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
340 /* Due to unfortunate name selection in Mandriva,
341 * $network is provided by network-up which is ordered
342 * after network which actually starts interfaces.
343 * To break the loop, just ignore it */
344 "network", SPECIAL_NETWORK_TARGET,
346 "named", SPECIAL_NSS_LOOKUP_TARGET,
347 "portmap", SPECIAL_RPCBIND_TARGET,
348 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
349 "syslog", SPECIAL_SYSLOG_TARGET,
350 "time", SPECIAL_TIME_SYNC_TARGET,
352 /* common extensions */
353 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
354 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
357 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
358 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
362 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
363 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
364 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
368 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
379 n = *name == '$' ? name + 1 : name;
381 for (i = 0; i < ELEMENTSOF(table); i += 2) {
383 if (!streq(table[i], n))
389 if (!(r = strdup(table[i+1])))
395 /* If we don't know this name, fallback heuristics to figure
396 * out whether something is a target or a service alias. */
399 if (!unit_prefix_is_valid(n))
402 /* Facilities starting with $ are most likely targets */
403 r = unit_name_build(n, NULL, ".target");
404 } else if (filename && streq(name, filename))
405 /* Names equaling the file name of the services are redundant */
408 /* Everything else we assume to be normal service names */
409 r = sysv_translate_name(n);
420 static int sysv_fix_order(Service *s) {
426 if (s->sysv_start_priority < 0)
429 /* For each pair of services where at least one lacks a LSB
430 * header, we use the start priority value to order things. */
432 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
435 bool special_s, special_t;
442 if (UNIT(t)->load_state != UNIT_LOADED)
445 if (t->sysv_start_priority < 0)
448 /* If both units have modern headers we don't care
449 * about the priorities */
450 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
451 (UNIT(t)->fragment_path || t->sysv_has_lsb))
454 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
455 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
457 if (special_t && !special_s)
459 else if (special_s && !special_t)
461 else if (t->sysv_start_priority < s->sysv_start_priority)
463 else if (t->sysv_start_priority > s->sysv_start_priority)
468 /* FIXME: Maybe we should compare the name here lexicographically? */
470 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
477 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
480 if (!(c = new0(ExecCommand, 1)))
483 if (!(c->path = strdup(path))) {
488 if (!(c->argv = strv_new(path, arg1, NULL))) {
497 static int sysv_exec_commands(Service *s) {
501 assert(s->sysv_path);
503 if (!(c = exec_command_new(s->sysv_path, "start")))
505 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
507 if (!(c = exec_command_new(s->sysv_path, "stop")))
509 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
511 if (!(c = exec_command_new(s->sysv_path, "reload")))
513 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
518 static int service_load_sysv_path(Service *s, const char *path) {
529 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
537 if (!(f = fopen(path, "re"))) {
538 r = errno == ENOENT ? 0 : -errno;
543 if (fstat(fileno(f), &st) < 0) {
549 if (!(s->sysv_path = strdup(path))) {
554 s->sysv_mtime = timespec_load(&st.st_mtim);
556 if (null_or_empty(&st)) {
557 u->load_state = UNIT_MASKED;
563 char l[LINE_MAX], *t;
565 if (!fgets(l, sizeof(l), f)) {
570 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
580 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
582 s->sysv_has_lsb = true;
586 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
592 t += strspn(t, WHITESPACE);
594 if (state == NORMAL) {
596 /* Try to parse Red Hat style chkconfig headers */
598 if (startswith_no_case(t, "chkconfig:")) {
600 char runlevels[16], *k;
604 if (sscanf(t+10, "%15s %i %*i",
606 &start_priority) != 2) {
608 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
612 /* A start priority gathered from the
613 * symlink farms is preferred over the
614 * data from the LSB header. */
615 if (start_priority < 0 || start_priority > 99)
616 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
618 s->sysv_start_priority = start_priority;
620 char_array_0(runlevels);
621 k = delete_chars(runlevels, WHITESPACE "-");
626 if (!(d = strdup(k))) {
631 free(s->sysv_runlevels);
632 s->sysv_runlevels = d;
635 } else if (startswith_no_case(t, "description:")) {
637 size_t k = strlen(t);
641 if (t[k-1] == '\\') {
646 if ((j = strstrip(t+12)) && *j) {
647 if (!(d = strdup(j))) {
654 free(chkconfig_description);
655 chkconfig_description = d;
657 } else if (startswith_no_case(t, "pidfile:")) {
664 if (!path_is_absolute(fn)) {
665 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
669 if (!(fn = strdup(fn))) {
678 } else if (state == DESCRIPTION) {
680 /* Try to parse Red Hat style description
683 size_t k = strlen(t);
691 if ((j = strstrip(t)) && *j) {
694 if (chkconfig_description)
695 d = join(chkconfig_description, " ", j, NULL);
704 free(chkconfig_description);
705 chkconfig_description = d;
708 } else if (state == LSB || state == LSB_DESCRIPTION) {
710 if (startswith_no_case(t, "Provides:")) {
716 FOREACH_WORD_QUOTED(w, z, t+9, i) {
719 if (!(n = strndup(w, z))) {
724 r = sysv_translate_facility(n, file_name_from_path(path), &m);
733 if (unit_name_to_type(m) == UNIT_SERVICE)
734 r = unit_add_name(u, m);
741 * indication that the
743 * now available. This
746 * targets do NOT pull
749 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
752 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
757 } else if (startswith_no_case(t, "Required-Start:") ||
758 startswith_no_case(t, "Should-Start:") ||
759 startswith_no_case(t, "X-Start-Before:") ||
760 startswith_no_case(t, "X-Start-After:")) {
766 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
769 if (!(n = strndup(w, z))) {
774 r = sysv_translate_facility(n, file_name_from_path(path), &m);
777 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
787 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
790 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
794 } else if (startswith_no_case(t, "Default-Start:")) {
799 k = delete_chars(t+14, WHITESPACE "-");
802 if (!(d = strdup(k))) {
807 free(s->sysv_runlevels);
808 s->sysv_runlevels = d;
811 } else if (startswith_no_case(t, "Description:")) {
814 state = LSB_DESCRIPTION;
816 if ((j = strstrip(t+12)) && *j) {
817 if (!(d = strdup(j))) {
824 free(long_description);
825 long_description = d;
827 } else if (startswith_no_case(t, "Short-Description:")) {
832 if ((j = strstrip(t+18)) && *j) {
833 if (!(d = strdup(j))) {
840 free(short_description);
841 short_description = d;
843 } else if (state == LSB_DESCRIPTION) {
845 if (startswith(l, "#\t") || startswith(l, "# ")) {
848 if ((j = strstrip(t)) && *j) {
851 if (long_description)
852 d = join(long_description, " ", t, NULL);
861 free(long_description);
862 long_description = d;
871 if ((r = sysv_exec_commands(s)) < 0)
873 if (s->sysv_runlevels &&
874 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
875 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
876 /* Service has both boot and "up" runlevels
877 configured. Kill the "up" ones. */
878 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
881 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
882 /* If there a runlevels configured for this service
883 * but none of the standard ones, then we assume this
884 * is some special kind of service (which might be
885 * needed for early boot) and don't create any links
888 UNIT(s)->default_dependencies = false;
890 /* Don't timeout special services during boot (like fsck) */
893 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
895 /* Special setting for all SysV services */
896 s->type = SERVICE_FORKING;
897 s->remain_after_exit = !s->pid_file;
898 s->guess_main_pid = false;
899 s->restart = SERVICE_RESTART_NO;
900 s->exec_context.ignore_sigpipe = false;
902 if (UNIT(s)->manager->sysv_console)
903 s->exec_context.std_output = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
905 s->exec_context.kill_mode = KILL_PROCESS;
907 /* We use the long description only if
908 * no short description is set. */
910 if (short_description)
911 description = short_description;
912 else if (chkconfig_description)
913 description = chkconfig_description;
914 else if (long_description)
915 description = long_description;
922 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
930 /* The priority that has been set in /etc/rcN.d/ hierarchies
931 * takes precedence over what is stored as default in the LSB
933 if (s->sysv_start_priority_from_rcnd >= 0)
934 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
936 u->load_state = UNIT_LOADED;
944 free(short_description);
945 free(long_description);
946 free(chkconfig_description);
951 static int service_load_sysv_name(Service *s, const char *name) {
957 /* For SysV services we strip the boot.*, rc.* and *.sh
958 * prefixes/suffixes. */
959 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
960 if (endswith(name, ".sh.service"))
965 if (startswith(name, "boot."))
969 #ifdef TARGET_FRUGALWARE
970 if (startswith(name, "rc."))
974 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
978 path = join(*p, "/", name, NULL);
982 assert(endswith(path, ".service"));
983 path[strlen(path)-8] = 0;
985 r = service_load_sysv_path(s, path);
987 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
988 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
989 /* Try Debian style *.sh source'able init scripts */
991 r = service_load_sysv_path(s, path);
997 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
998 /* Try SUSE style boot.* init scripts */
1000 path = join(*p, "/boot.", name, NULL);
1004 /* Drop .service suffix */
1005 path[strlen(path)-8] = 0;
1006 r = service_load_sysv_path(s, path);
1011 #ifdef TARGET_FRUGALWARE
1012 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1013 /* Try Frugalware style rc.* init scripts */
1015 path = join(*p, "/rc.", name, NULL);
1019 /* Drop .service suffix */
1020 path[strlen(path)-8] = 0;
1021 r = service_load_sysv_path(s, path);
1029 if ((UNIT(s)->load_state != UNIT_STUB))
1036 static int service_load_sysv(Service *s) {
1043 /* Load service data from SysV init scripts, preferably with
1044 * LSB headers ... */
1046 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1049 if ((t = UNIT(s)->id))
1050 if ((r = service_load_sysv_name(s, t)) < 0)
1053 if (UNIT(s)->load_state == UNIT_STUB)
1054 SET_FOREACH(t, UNIT(s)->names, i) {
1055 if (t == UNIT(s)->id)
1058 if ((r = service_load_sysv_name(s, t)) < 0)
1061 if (UNIT(s)->load_state != UNIT_STUB)
1069 static int fsck_fix_order(Service *s) {
1075 if (s->fsck_passno <= 0)
1078 /* For each pair of services where both have an fsck priority
1079 * we order things based on it. */
1081 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1090 if (UNIT(t)->load_state != UNIT_LOADED)
1093 if (t->fsck_passno <= 0)
1096 if (t->fsck_passno < s->fsck_passno)
1098 else if (t->fsck_passno > s->fsck_passno)
1103 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1110 static int service_verify(Service *s) {
1113 if (UNIT(s)->load_state != UNIT_LOADED)
1116 if (!s->exec_command[SERVICE_EXEC_START]) {
1117 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1121 if (s->type != SERVICE_ONESHOT &&
1122 s->exec_command[SERVICE_EXEC_START]->command_next) {
1123 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1127 if (s->type == SERVICE_ONESHOT &&
1128 s->exec_command[SERVICE_EXEC_RELOAD]) {
1129 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1133 if (s->type == SERVICE_DBUS && !s->bus_name) {
1134 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1138 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1139 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1146 static int service_add_default_dependencies(Service *s) {
1151 /* Add a number of automatic dependencies useful for the
1152 * majority of services. */
1154 /* First, pull in base system */
1155 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
1157 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1160 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
1162 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1166 /* Second, activate normal shutdown */
1167 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1170 static void service_fix_output(Service *s) {
1173 /* If nothing has been explicitly configured, patch default
1174 * output in. If input is socket/tty we avoid this however,
1175 * since in that case we want output to default to the same
1176 * place as we read input from. */
1178 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1179 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1180 s->exec_context.std_input == EXEC_INPUT_NULL)
1181 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1183 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1184 s->exec_context.std_input == EXEC_INPUT_NULL)
1185 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1188 static int service_load(Unit *u) {
1190 Service *s = SERVICE(u);
1194 /* Load a .service file */
1195 if ((r = unit_load_fragment(u)) < 0)
1198 #ifdef HAVE_SYSV_COMPAT
1199 /* Load a classic init script as a fallback, if we couldn't find anything */
1200 if (u->load_state == UNIT_STUB)
1201 if ((r = service_load_sysv(s)) < 0)
1205 /* Still nothing found? Then let's give up */
1206 if (u->load_state == UNIT_STUB)
1209 /* We were able to load something, then let's add in the
1210 * dropin directories. */
1211 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1214 /* This is a new unit? Then let's add in some extras */
1215 if (u->load_state == UNIT_LOADED) {
1216 service_fix_output(s);
1218 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1221 if ((r = unit_add_default_cgroups(u)) < 0)
1224 #ifdef HAVE_SYSV_COMPAT
1225 if ((r = sysv_fix_order(s)) < 0)
1229 if ((r = fsck_fix_order(s)) < 0)
1233 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1236 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1237 s->notify_access = NOTIFY_MAIN;
1239 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1240 s->notify_access = NOTIFY_MAIN;
1242 if (s->type == SERVICE_DBUS || s->bus_name)
1243 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1246 if (UNIT(s)->default_dependencies)
1247 if ((r = service_add_default_dependencies(s)) < 0)
1251 return service_verify(s);
1254 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1256 ServiceExecCommand c;
1257 Service *s = SERVICE(u);
1258 const char *prefix2;
1263 p2 = strappend(prefix, "\t");
1264 prefix2 = p2 ? p2 : prefix;
1267 "%sService State: %s\n"
1269 "%sReload Result: %s\n"
1270 "%sPermissionsStartOnly: %s\n"
1271 "%sRootDirectoryStartOnly: %s\n"
1272 "%sRemainAfterExit: %s\n"
1273 "%sGuessMainPID: %s\n"
1276 "%sNotifyAccess: %s\n",
1277 prefix, service_state_to_string(s->state),
1278 prefix, service_result_to_string(s->result),
1279 prefix, service_result_to_string(s->reload_result),
1280 prefix, yes_no(s->permissions_start_only),
1281 prefix, yes_no(s->root_directory_start_only),
1282 prefix, yes_no(s->remain_after_exit),
1283 prefix, yes_no(s->guess_main_pid),
1284 prefix, service_type_to_string(s->type),
1285 prefix, service_restart_to_string(s->restart),
1286 prefix, notify_access_to_string(s->notify_access));
1288 if (s->control_pid > 0)
1290 "%sControl PID: %lu\n",
1291 prefix, (unsigned long) s->control_pid);
1293 if (s->main_pid > 0)
1296 "%sMain PID Known: %s\n"
1297 "%sMain PID Alien: %s\n",
1298 prefix, (unsigned long) s->main_pid,
1299 prefix, yes_no(s->main_pid_known),
1300 prefix, yes_no(s->main_pid_alien));
1305 prefix, s->pid_file);
1310 "%sBus Name Good: %s\n",
1311 prefix, s->bus_name,
1312 prefix, yes_no(s->bus_name_good));
1314 exec_context_dump(&s->exec_context, f, prefix);
1316 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1318 if (!s->exec_command[c])
1321 fprintf(f, "%s-> %s:\n",
1322 prefix, service_exec_command_to_string(c));
1324 exec_command_dump_list(s->exec_command[c], f, prefix2);
1327 #ifdef HAVE_SYSV_COMPAT
1330 "%sSysV Init Script Path: %s\n"
1331 "%sSysV Init Script has LSB Header: %s\n"
1332 "%sSysVEnabled: %s\n",
1333 prefix, s->sysv_path,
1334 prefix, yes_no(s->sysv_has_lsb),
1335 prefix, yes_no(s->sysv_enabled));
1337 if (s->sysv_start_priority >= 0)
1339 "%sSysVStartPriority: %i\n",
1340 prefix, s->sysv_start_priority);
1342 if (s->sysv_runlevels)
1343 fprintf(f, "%sSysVRunLevels: %s\n",
1344 prefix, s->sysv_runlevels);
1347 if (s->fsck_passno > 0)
1349 "%sFsckPassNo: %i\n",
1350 prefix, s->fsck_passno);
1353 fprintf(f, "%sStatus Text: %s\n",
1354 prefix, s->status_text);
1359 static int service_load_pid_file(Service *s, bool may_warn) {
1369 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1371 log_info("PID file %s not readable (yet?) after %s.",
1372 s->pid_file, service_state_to_string(s->state));
1376 r = parse_pid(k, &pid);
1382 if (kill(pid, 0) < 0 && errno != EPERM) {
1384 log_info("PID %lu read from file %s does not exist.",
1385 (unsigned long) pid, s->pid_file);
1389 if (s->main_pid_known) {
1390 if (pid == s->main_pid)
1393 log_debug("Main PID changing: %lu -> %lu",
1394 (unsigned long) s->main_pid, (unsigned long) pid);
1395 service_unwatch_main_pid(s);
1396 s->main_pid_known = false;
1398 log_debug("Main PID loaded: %lu", (unsigned long) pid);
1400 if ((r = service_set_main_pid(s, pid)) < 0)
1403 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1404 /* FIXME: we need to do something here */
1410 static int service_search_main_pid(Service *s) {
1416 /* If we know it anyway, don't ever fallback to unreliable
1418 if (s->main_pid_known)
1421 if (!s->guess_main_pid)
1424 assert(s->main_pid <= 0);
1426 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1429 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1430 if ((r = service_set_main_pid(s, pid)) < 0)
1433 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1434 /* FIXME: we need to do something here */
1440 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1446 /* Notifies all our sockets when we die */
1448 if (s->socket_fd >= 0)
1451 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1452 if (u->type == UNIT_SOCKET)
1453 socket_notify_service_dead(SOCKET(u), failed_permanent);
1458 static void service_set_state(Service *s, ServiceState state) {
1459 ServiceState old_state;
1462 old_state = s->state;
1465 service_unwatch_pid_file(s);
1467 if (state != SERVICE_START_PRE &&
1468 state != SERVICE_START &&
1469 state != SERVICE_START_POST &&
1470 state != SERVICE_RELOAD &&
1471 state != SERVICE_STOP &&
1472 state != SERVICE_STOP_SIGTERM &&
1473 state != SERVICE_STOP_SIGKILL &&
1474 state != SERVICE_STOP_POST &&
1475 state != SERVICE_FINAL_SIGTERM &&
1476 state != SERVICE_FINAL_SIGKILL &&
1477 state != SERVICE_AUTO_RESTART)
1478 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1480 if (state != SERVICE_START &&
1481 state != SERVICE_START_POST &&
1482 state != SERVICE_RUNNING &&
1483 state != SERVICE_RELOAD &&
1484 state != SERVICE_STOP &&
1485 state != SERVICE_STOP_SIGTERM &&
1486 state != SERVICE_STOP_SIGKILL) {
1487 service_unwatch_main_pid(s);
1488 s->main_command = NULL;
1491 if (state != SERVICE_START_PRE &&
1492 state != SERVICE_START &&
1493 state != SERVICE_START_POST &&
1494 state != SERVICE_RELOAD &&
1495 state != SERVICE_STOP &&
1496 state != SERVICE_STOP_SIGTERM &&
1497 state != SERVICE_STOP_SIGKILL &&
1498 state != SERVICE_STOP_POST &&
1499 state != SERVICE_FINAL_SIGTERM &&
1500 state != SERVICE_FINAL_SIGKILL) {
1501 service_unwatch_control_pid(s);
1502 s->control_command = NULL;
1503 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1506 if (state == SERVICE_DEAD ||
1507 state == SERVICE_STOP ||
1508 state == SERVICE_STOP_SIGTERM ||
1509 state == SERVICE_STOP_SIGKILL ||
1510 state == SERVICE_STOP_POST ||
1511 state == SERVICE_FINAL_SIGTERM ||
1512 state == SERVICE_FINAL_SIGKILL ||
1513 state == SERVICE_FAILED ||
1514 state == SERVICE_AUTO_RESTART)
1515 service_notify_sockets_dead(s, false);
1517 if (state != SERVICE_START_PRE &&
1518 state != SERVICE_START &&
1519 state != SERVICE_START_POST &&
1520 state != SERVICE_RUNNING &&
1521 state != SERVICE_RELOAD &&
1522 state != SERVICE_STOP &&
1523 state != SERVICE_STOP_SIGTERM &&
1524 state != SERVICE_STOP_SIGKILL &&
1525 state != SERVICE_STOP_POST &&
1526 state != SERVICE_FINAL_SIGTERM &&
1527 state != SERVICE_FINAL_SIGKILL &&
1528 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1529 service_close_socket_fd(s);
1530 service_connection_unref(s);
1533 if (state == SERVICE_STOP)
1534 service_stop_watchdog(s);
1536 /* For the inactive states unit_notify() will trim the cgroup,
1537 * but for exit we have to do that ourselves... */
1538 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1539 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1541 if (old_state != state)
1542 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1544 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], s->reload_result == SERVICE_SUCCESS);
1545 s->reload_result = SERVICE_SUCCESS;
1548 static int service_coldplug(Unit *u) {
1549 Service *s = SERVICE(u);
1553 assert(s->state == SERVICE_DEAD);
1555 if (s->deserialized_state != s->state) {
1557 if (s->deserialized_state == SERVICE_START_PRE ||
1558 s->deserialized_state == SERVICE_START ||
1559 s->deserialized_state == SERVICE_START_POST ||
1560 s->deserialized_state == SERVICE_RELOAD ||
1561 s->deserialized_state == SERVICE_STOP ||
1562 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1563 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1564 s->deserialized_state == SERVICE_STOP_POST ||
1565 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1566 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1567 s->deserialized_state == SERVICE_AUTO_RESTART) {
1569 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1572 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1574 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1579 if ((s->deserialized_state == SERVICE_START &&
1580 (s->type == SERVICE_FORKING ||
1581 s->type == SERVICE_DBUS ||
1582 s->type == SERVICE_ONESHOT ||
1583 s->type == SERVICE_NOTIFY)) ||
1584 s->deserialized_state == SERVICE_START_POST ||
1585 s->deserialized_state == SERVICE_RUNNING ||
1586 s->deserialized_state == SERVICE_RELOAD ||
1587 s->deserialized_state == SERVICE_STOP ||
1588 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1589 s->deserialized_state == SERVICE_STOP_SIGKILL)
1590 if (s->main_pid > 0)
1591 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1594 if (s->deserialized_state == SERVICE_START_PRE ||
1595 s->deserialized_state == SERVICE_START ||
1596 s->deserialized_state == SERVICE_START_POST ||
1597 s->deserialized_state == SERVICE_RELOAD ||
1598 s->deserialized_state == SERVICE_STOP ||
1599 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1600 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1601 s->deserialized_state == SERVICE_STOP_POST ||
1602 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1603 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1604 if (s->control_pid > 0)
1605 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1608 if (s->deserialized_state == SERVICE_START_POST ||
1609 s->deserialized_state == SERVICE_RUNNING)
1610 service_handle_watchdog(s);
1612 service_set_state(s, s->deserialized_state);
1617 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1621 unsigned rn_fds = 0;
1628 if (s->socket_fd >= 0)
1631 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1636 if (u->type != UNIT_SOCKET)
1641 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1653 if (!(t = new(int, rn_fds+cn_fds))) {
1659 memcpy(t, rfds, rn_fds * sizeof(int));
1660 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1665 rn_fds = rn_fds+cn_fds;
1680 static int service_spawn(
1685 bool apply_permissions,
1687 bool apply_tty_stdin,
1688 bool set_notify_socket,
1693 int *fds = NULL, *fdsbuf = NULL;
1694 unsigned n_fds = 0, n_env = 0;
1695 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1702 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1703 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1704 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1706 if (s->socket_fd >= 0) {
1707 fds = &s->socket_fd;
1710 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1717 if (timeout && s->timeout_usec) {
1718 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1721 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1723 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1728 if (!(our_env = new0(char*, 4))) {
1733 if (set_notify_socket)
1734 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1739 if (s->main_pid > 0)
1740 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1745 if (s->watchdog_usec > 0)
1746 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1751 if (!(final_env = strv_env_merge(2,
1752 UNIT(s)->manager->environment,
1767 UNIT(s)->manager->confirm_spawn,
1768 UNIT(s)->cgroup_bondings,
1769 UNIT(s)->cgroup_attributes,
1776 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1777 /* FIXME: we need to do something here */
1783 strv_free(final_env);
1793 strv_free(final_env);
1796 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1801 static int main_pid_good(Service *s) {
1804 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1807 /* If we know the pid file, then lets just check if it is
1809 if (s->main_pid_known) {
1811 /* If it's an alien child let's check if it is still
1813 if (s->main_pid_alien)
1814 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1816 /* .. otherwise assume we'll get a SIGCHLD for it,
1817 * which we really should wait for to collect exit
1818 * status and code */
1819 return s->main_pid > 0;
1822 /* We don't know the pid */
1826 static int control_pid_good(Service *s) {
1829 return s->control_pid > 0;
1832 static int cgroup_good(Service *s) {
1837 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1843 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1847 if (f != SERVICE_SUCCESS)
1850 if (allow_restart &&
1851 !s->forbid_restart &&
1852 (s->restart == SERVICE_RESTART_ALWAYS ||
1853 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1854 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1855 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1856 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1858 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1862 service_set_state(s, SERVICE_AUTO_RESTART);
1864 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1866 s->forbid_restart = false;
1871 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1872 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1875 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1877 static void service_enter_stop_post(Service *s, ServiceResult f) {
1881 if (f != SERVICE_SUCCESS)
1884 service_unwatch_control_pid(s);
1886 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1887 s->control_command_id = SERVICE_EXEC_STOP_POST;
1889 if ((r = service_spawn(s,
1893 !s->permissions_start_only,
1894 !s->root_directory_start_only,
1897 &s->control_pid)) < 0)
1901 service_set_state(s, SERVICE_STOP_POST);
1903 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1908 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1909 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1912 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1914 Set *pid_set = NULL;
1915 bool wait_for_exit = false;
1919 if (f != SERVICE_SUCCESS)
1922 if (s->exec_context.kill_mode != KILL_NONE) {
1923 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1925 if (s->main_pid > 0) {
1926 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1927 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1929 wait_for_exit = !s->main_pid_alien;
1932 if (s->control_pid > 0) {
1933 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1934 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1936 wait_for_exit = true;
1939 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1941 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1946 /* Exclude the main/control pids from being killed via the cgroup */
1947 if (s->main_pid > 0)
1948 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1951 if (s->control_pid > 0)
1952 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1955 if ((r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, pid_set)) < 0) {
1956 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1957 log_warning("Failed to kill control group: %s", strerror(-r));
1959 wait_for_exit = true;
1966 if (wait_for_exit) {
1967 if (s->timeout_usec > 0)
1968 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1971 service_set_state(s, state);
1972 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1973 service_enter_stop_post(s, SERVICE_SUCCESS);
1975 service_enter_dead(s, SERVICE_SUCCESS, true);
1980 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
1982 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1983 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
1985 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
1991 static void service_enter_stop(Service *s, ServiceResult f) {
1996 if (f != SERVICE_SUCCESS)
1999 service_unwatch_control_pid(s);
2001 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2002 s->control_command_id = SERVICE_EXEC_STOP;
2004 if ((r = service_spawn(s,
2008 !s->permissions_start_only,
2009 !s->root_directory_start_only,
2012 &s->control_pid)) < 0)
2015 service_set_state(s, SERVICE_STOP);
2017 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2022 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2023 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2026 static void service_enter_running(Service *s, ServiceResult f) {
2027 int main_pid_ok, cgroup_ok;
2030 if (f != SERVICE_SUCCESS)
2033 main_pid_ok = main_pid_good(s);
2034 cgroup_ok = cgroup_good(s);
2036 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2037 (s->bus_name_good || s->type != SERVICE_DBUS))
2038 service_set_state(s, SERVICE_RUNNING);
2039 else if (s->remain_after_exit)
2040 service_set_state(s, SERVICE_EXITED);
2042 service_enter_stop(s, SERVICE_SUCCESS);
2045 static void service_enter_start_post(Service *s) {
2049 service_unwatch_control_pid(s);
2051 if (s->watchdog_usec > 0)
2052 service_reset_watchdog(s);
2054 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2055 s->control_command_id = SERVICE_EXEC_START_POST;
2057 if ((r = service_spawn(s,
2061 !s->permissions_start_only,
2062 !s->root_directory_start_only,
2065 &s->control_pid)) < 0)
2068 service_set_state(s, SERVICE_START_POST);
2070 service_enter_running(s, SERVICE_SUCCESS);
2075 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2076 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2079 static void service_enter_start(Service *s) {
2086 assert(s->exec_command[SERVICE_EXEC_START]);
2087 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2089 if (s->type == SERVICE_FORKING)
2090 service_unwatch_control_pid(s);
2092 service_unwatch_main_pid(s);
2094 /* We want to ensure that nobody leaks processes from
2095 * START_PRE here, so let's go on a killing spree, People
2096 * should not spawn long running processes from START_PRE. */
2097 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
2099 if (s->type == SERVICE_FORKING) {
2100 s->control_command_id = SERVICE_EXEC_START;
2101 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2103 s->main_command = NULL;
2105 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2106 s->control_command = NULL;
2108 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2111 if ((r = service_spawn(s,
2113 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
2118 s->notify_access != NOTIFY_NONE,
2122 if (s->type == SERVICE_SIMPLE) {
2123 /* For simple services we immediately start
2124 * the START_POST binaries. */
2126 service_set_main_pid(s, pid);
2127 service_enter_start_post(s);
2129 } else if (s->type == SERVICE_FORKING) {
2131 /* For forking services we wait until the start
2132 * process exited. */
2134 s->control_pid = pid;
2135 service_set_state(s, SERVICE_START);
2137 } else if (s->type == SERVICE_ONESHOT ||
2138 s->type == SERVICE_DBUS ||
2139 s->type == SERVICE_NOTIFY) {
2141 /* For oneshot services we wait until the start
2142 * process exited, too, but it is our main process. */
2144 /* For D-Bus services we know the main pid right away,
2145 * but wait for the bus name to appear on the
2146 * bus. Notify services are similar. */
2148 service_set_main_pid(s, pid);
2149 service_set_state(s, SERVICE_START);
2151 assert_not_reached("Unknown service type");
2156 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2157 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2160 static void service_enter_start_pre(Service *s) {
2165 service_unwatch_control_pid(s);
2167 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2169 /* Before we start anything, let's clear up what might
2170 * be left from previous runs. */
2171 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
2173 s->control_command_id = SERVICE_EXEC_START_PRE;
2175 if ((r = service_spawn(s,
2179 !s->permissions_start_only,
2180 !s->root_directory_start_only,
2183 &s->control_pid)) < 0)
2186 service_set_state(s, SERVICE_START_PRE);
2188 service_enter_start(s);
2193 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2194 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2197 static void service_enter_restart(Service *s) {
2202 dbus_error_init(&error);
2205 log_info("Job pending for unit, delaying automatic restart.");
2207 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2211 service_enter_dead(s, SERVICE_SUCCESS, false);
2213 if ((r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
2216 log_debug("%s scheduled restart job.", UNIT(s)->id);
2220 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2221 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2223 dbus_error_free(&error);
2226 static void service_enter_reload(Service *s) {
2231 service_unwatch_control_pid(s);
2233 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2234 s->control_command_id = SERVICE_EXEC_RELOAD;
2236 if ((r = service_spawn(s,
2240 !s->permissions_start_only,
2241 !s->root_directory_start_only,
2244 &s->control_pid)) < 0)
2247 service_set_state(s, SERVICE_RELOAD);
2249 service_enter_running(s, SERVICE_SUCCESS);
2254 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2255 s->reload_result = SERVICE_FAILURE_RESOURCES;
2256 service_enter_running(s, SERVICE_SUCCESS);
2259 static void service_run_next_control(Service *s) {
2263 assert(s->control_command);
2264 assert(s->control_command->command_next);
2266 assert(s->control_command_id != SERVICE_EXEC_START);
2268 s->control_command = s->control_command->command_next;
2269 service_unwatch_control_pid(s);
2271 if ((r = service_spawn(s,
2275 !s->permissions_start_only,
2276 !s->root_directory_start_only,
2277 s->control_command_id == SERVICE_EXEC_START_PRE ||
2278 s->control_command_id == SERVICE_EXEC_STOP_POST,
2280 &s->control_pid)) < 0)
2286 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2288 if (s->state == SERVICE_START_PRE)
2289 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2290 else if (s->state == SERVICE_STOP)
2291 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2292 else if (s->state == SERVICE_STOP_POST)
2293 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2294 else if (s->state == SERVICE_RELOAD) {
2295 s->reload_result = SERVICE_FAILURE_RESOURCES;
2296 service_enter_running(s, SERVICE_SUCCESS);
2298 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2301 static void service_run_next_main(Service *s) {
2306 assert(s->main_command);
2307 assert(s->main_command->command_next);
2308 assert(s->type == SERVICE_ONESHOT);
2310 s->main_command = s->main_command->command_next;
2311 service_unwatch_main_pid(s);
2313 if ((r = service_spawn(s,
2320 s->notify_access != NOTIFY_NONE,
2324 service_set_main_pid(s, pid);
2329 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2330 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2333 static int service_start_limit_test(Service *s) {
2336 if (ratelimit_test(&s->start_limit))
2339 switch (s->start_limit_action) {
2341 case SERVICE_START_LIMIT_NONE:
2342 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2345 case SERVICE_START_LIMIT_REBOOT: {
2349 dbus_error_init(&error);
2351 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2353 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2355 log_error("Failed to reboot: %s.", bus_error(&error, r));
2356 dbus_error_free(&error);
2362 case SERVICE_START_LIMIT_REBOOT_FORCE:
2363 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2364 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2367 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2368 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2369 reboot(RB_AUTOBOOT);
2373 log_error("start limit action=%i", s->start_limit_action);
2374 assert_not_reached("Unknown StartLimitAction.");
2380 static int service_start(Unit *u) {
2381 Service *s = SERVICE(u);
2386 /* We cannot fulfill this request right now, try again later
2388 if (s->state == SERVICE_STOP ||
2389 s->state == SERVICE_STOP_SIGTERM ||
2390 s->state == SERVICE_STOP_SIGKILL ||
2391 s->state == SERVICE_STOP_POST ||
2392 s->state == SERVICE_FINAL_SIGTERM ||
2393 s->state == SERVICE_FINAL_SIGKILL)
2396 /* Already on it! */
2397 if (s->state == SERVICE_START_PRE ||
2398 s->state == SERVICE_START ||
2399 s->state == SERVICE_START_POST)
2402 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2404 /* Make sure we don't enter a busy loop of some kind. */
2405 r = service_start_limit_test(s);
2407 service_notify_sockets_dead(s, true);
2411 s->result = SERVICE_SUCCESS;
2412 s->reload_result = SERVICE_SUCCESS;
2413 s->main_pid_known = false;
2414 s->main_pid_alien = false;
2415 s->forbid_restart = false;
2417 service_enter_start_pre(s);
2421 static int service_stop(Unit *u) {
2422 Service *s = SERVICE(u);
2426 /* This is a user request, so don't do restarts on this
2428 s->forbid_restart = true;
2431 if (s->state == SERVICE_STOP ||
2432 s->state == SERVICE_STOP_SIGTERM ||
2433 s->state == SERVICE_STOP_SIGKILL ||
2434 s->state == SERVICE_STOP_POST ||
2435 s->state == SERVICE_FINAL_SIGTERM ||
2436 s->state == SERVICE_FINAL_SIGKILL)
2439 /* Don't allow a restart */
2440 if (s->state == SERVICE_AUTO_RESTART) {
2441 service_set_state(s, SERVICE_DEAD);
2445 /* If there's already something running we go directly into
2447 if (s->state == SERVICE_START_PRE ||
2448 s->state == SERVICE_START ||
2449 s->state == SERVICE_START_POST ||
2450 s->state == SERVICE_RELOAD) {
2451 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2455 assert(s->state == SERVICE_RUNNING ||
2456 s->state == SERVICE_EXITED);
2458 service_enter_stop(s, SERVICE_SUCCESS);
2462 static int service_reload(Unit *u) {
2463 Service *s = SERVICE(u);
2467 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2469 service_enter_reload(s);
2473 static bool service_can_reload(Unit *u) {
2474 Service *s = SERVICE(u);
2478 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2481 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2482 Service *s = SERVICE(u);
2488 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2489 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2490 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2492 if (s->control_pid > 0)
2493 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2495 if (s->main_pid_known && s->main_pid > 0)
2496 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2498 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2501 unit_serialize_item(u, f, "status-text", s->status_text);
2503 /* FIXME: There's a minor uncleanliness here: if there are
2504 * multiple commands attached here, we will start from the
2505 * first one again */
2506 if (s->control_command_id >= 0)
2507 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2509 if (s->socket_fd >= 0) {
2512 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2515 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2518 if (s->main_exec_status.pid > 0) {
2519 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2520 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2521 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2523 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2524 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2525 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2528 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2529 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2534 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2535 Service *s = SERVICE(u);
2542 if (streq(key, "state")) {
2545 if ((state = service_state_from_string(value)) < 0)
2546 log_debug("Failed to parse state value %s", value);
2548 s->deserialized_state = state;
2549 } else if (streq(key, "result")) {
2552 f = service_result_from_string(value);
2554 log_debug("Failed to parse result value %s", value);
2555 else if (f != SERVICE_SUCCESS)
2558 } else if (streq(key, "reload-result")) {
2561 f = service_result_from_string(value);
2563 log_debug("Failed to parse reload result value %s", value);
2564 else if (f != SERVICE_SUCCESS)
2565 s->reload_result = f;
2567 } else if (streq(key, "control-pid")) {
2570 if (parse_pid(value, &pid) < 0)
2571 log_debug("Failed to parse control-pid value %s", value);
2573 s->control_pid = pid;
2574 } else if (streq(key, "main-pid")) {
2577 if (parse_pid(value, &pid) < 0)
2578 log_debug("Failed to parse main-pid value %s", value);
2580 service_set_main_pid(s, (pid_t) pid);
2581 } else if (streq(key, "main-pid-known")) {
2584 if ((b = parse_boolean(value)) < 0)
2585 log_debug("Failed to parse main-pid-known value %s", value);
2587 s->main_pid_known = b;
2588 } else if (streq(key, "status-text")) {
2591 if ((t = strdup(value))) {
2592 free(s->status_text);
2596 } else if (streq(key, "control-command")) {
2597 ServiceExecCommand id;
2599 if ((id = service_exec_command_from_string(value)) < 0)
2600 log_debug("Failed to parse exec-command value %s", value);
2602 s->control_command_id = id;
2603 s->control_command = s->exec_command[id];
2605 } else if (streq(key, "socket-fd")) {
2608 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2609 log_debug("Failed to parse socket-fd value %s", value);
2612 if (s->socket_fd >= 0)
2613 close_nointr_nofail(s->socket_fd);
2614 s->socket_fd = fdset_remove(fds, fd);
2616 } else if (streq(key, "main-exec-status-pid")) {
2619 if (parse_pid(value, &pid) < 0)
2620 log_debug("Failed to parse main-exec-status-pid value %s", value);
2622 s->main_exec_status.pid = pid;
2623 } else if (streq(key, "main-exec-status-code")) {
2626 if (safe_atoi(value, &i) < 0)
2627 log_debug("Failed to parse main-exec-status-code value %s", value);
2629 s->main_exec_status.code = i;
2630 } else if (streq(key, "main-exec-status-status")) {
2633 if (safe_atoi(value, &i) < 0)
2634 log_debug("Failed to parse main-exec-status-status value %s", value);
2636 s->main_exec_status.status = i;
2637 } else if (streq(key, "main-exec-status-start"))
2638 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2639 else if (streq(key, "main-exec-status-exit"))
2640 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2641 else if (streq(key, "watchdog-timestamp"))
2642 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2644 log_debug("Unknown serialization key '%s'", key);
2649 static UnitActiveState service_active_state(Unit *u) {
2652 return state_translation_table[SERVICE(u)->state];
2655 static const char *service_sub_state_to_string(Unit *u) {
2658 return service_state_to_string(SERVICE(u)->state);
2661 static bool service_check_gc(Unit *u) {
2662 Service *s = SERVICE(u);
2666 /* Never clean up services that still have a process around,
2667 * even if the service is formally dead. */
2668 if (cgroup_good(s) > 0 ||
2669 main_pid_good(s) > 0 ||
2670 control_pid_good(s) > 0)
2673 #ifdef HAVE_SYSV_COMPAT
2681 static bool service_check_snapshot(Unit *u) {
2682 Service *s = SERVICE(u);
2686 return !s->got_socket_fd;
2689 static int service_retry_pid_file(Service *s) {
2692 assert(s->pid_file);
2693 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2695 r = service_load_pid_file(s, false);
2699 service_unwatch_pid_file(s);
2701 service_enter_running(s, SERVICE_SUCCESS);
2705 static int service_watch_pid_file(Service *s) {
2708 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2709 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2713 /* the pidfile might have appeared just before we set the watch */
2714 service_retry_pid_file(s);
2718 log_error("Failed to set a watch for %s's PID file %s: %s",
2719 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2720 service_unwatch_pid_file(s);
2724 static int service_demand_pid_file(Service *s) {
2727 assert(s->pid_file);
2728 assert(!s->pid_file_pathspec);
2730 ps = new0(PathSpec, 1);
2734 ps->path = strdup(s->pid_file);
2740 path_kill_slashes(ps->path);
2742 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2743 * keep their PID file open all the time. */
2744 ps->type = PATH_MODIFIED;
2745 ps->inotify_fd = -1;
2747 s->pid_file_pathspec = ps;
2749 return service_watch_pid_file(s);
2752 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2753 Service *s = SERVICE(u);
2757 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2758 assert(s->pid_file_pathspec);
2759 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2761 log_debug("inotify event for %s", u->id);
2763 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2766 if (service_retry_pid_file(s) == 0)
2769 if (service_watch_pid_file(s) < 0)
2774 service_unwatch_pid_file(s);
2775 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2778 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2779 Service *s = SERVICE(u);
2785 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2786 f = SERVICE_SUCCESS;
2787 else if (code == CLD_EXITED)
2788 f = SERVICE_FAILURE_EXIT_CODE;
2789 else if (code == CLD_KILLED)
2790 f = SERVICE_FAILURE_SIGNAL;
2791 else if (code == CLD_DUMPED)
2792 f = SERVICE_FAILURE_CORE_DUMP;
2794 assert_not_reached("Unknown code");
2796 if (s->main_pid == pid) {
2797 /* Forking services may occasionally move to a new PID.
2798 * As long as they update the PID file before exiting the old
2799 * PID, they're fine. */
2800 if (service_load_pid_file(s, false) == 0)
2804 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2806 /* If this is not a forking service than the main
2807 * process got started and hence we copy the exit
2808 * status so that it is recorded both as main and as
2809 * control process exit status */
2810 if (s->main_command) {
2811 s->main_command->exec_status = s->main_exec_status;
2813 if (s->main_command->ignore)
2814 f = SERVICE_SUCCESS;
2817 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2818 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2820 if (f != SERVICE_SUCCESS)
2823 if (s->main_command &&
2824 s->main_command->command_next &&
2825 f == SERVICE_SUCCESS) {
2827 /* There is another command to *
2828 * execute, so let's do that. */
2830 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2831 service_run_next_main(s);
2835 /* The service exited, so the service is officially
2837 s->main_command = NULL;
2841 case SERVICE_START_POST:
2842 case SERVICE_RELOAD:
2844 /* Need to wait until the operation is
2849 if (s->type == SERVICE_ONESHOT) {
2850 /* This was our main goal, so let's go on */
2851 if (f == SERVICE_SUCCESS)
2852 service_enter_start_post(s);
2854 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2857 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2862 case SERVICE_RUNNING:
2863 service_enter_running(s, f);
2866 case SERVICE_STOP_SIGTERM:
2867 case SERVICE_STOP_SIGKILL:
2869 if (!control_pid_good(s))
2870 service_enter_stop_post(s, f);
2872 /* If there is still a control process, wait for that first */
2876 assert_not_reached("Uh, main process died at wrong time.");
2880 } else if (s->control_pid == pid) {
2884 if (s->control_command) {
2885 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2887 if (s->control_command->ignore)
2888 f = SERVICE_SUCCESS;
2891 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2892 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2894 if (f != SERVICE_SUCCESS)
2897 if (s->control_command &&
2898 s->control_command->command_next &&
2899 f == SERVICE_SUCCESS) {
2901 /* There is another command to *
2902 * execute, so let's do that. */
2904 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2905 service_run_next_control(s);
2908 /* No further commands for this step, so let's
2909 * figure out what to do next */
2911 s->control_command = NULL;
2912 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2914 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
2918 case SERVICE_START_PRE:
2919 if (f == SERVICE_SUCCESS)
2920 service_enter_start(s);
2922 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2926 assert(s->type == SERVICE_FORKING);
2928 if (f != SERVICE_SUCCESS) {
2929 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2934 bool has_start_post;
2937 /* Let's try to load the pid file here if we can.
2938 * The PID file might actually be created by a START_POST
2939 * script. In that case don't worry if the loading fails. */
2941 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
2942 r = service_load_pid_file(s, !has_start_post);
2943 if (!has_start_post && r < 0) {
2944 r = service_demand_pid_file(s);
2945 if (r < 0 || !cgroup_good(s))
2946 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2950 service_search_main_pid(s);
2952 service_enter_start_post(s);
2955 case SERVICE_START_POST:
2956 if (f != SERVICE_SUCCESS) {
2957 service_enter_stop(s, f);
2964 r = service_load_pid_file(s, true);
2966 r = service_demand_pid_file(s);
2967 if (r < 0 || !cgroup_good(s))
2968 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2972 service_search_main_pid(s);
2974 service_enter_running(s, SERVICE_SUCCESS);
2977 case SERVICE_RELOAD:
2978 if (f == SERVICE_SUCCESS) {
2979 service_load_pid_file(s, true);
2980 service_search_main_pid(s);
2983 s->reload_result = f;
2984 service_enter_running(s, SERVICE_SUCCESS);
2988 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
2991 case SERVICE_STOP_SIGTERM:
2992 case SERVICE_STOP_SIGKILL:
2993 if (main_pid_good(s) <= 0)
2994 service_enter_stop_post(s, f);
2996 /* If there is still a service
2997 * process around, wait until
2998 * that one quit, too */
3001 case SERVICE_STOP_POST:
3002 case SERVICE_FINAL_SIGTERM:
3003 case SERVICE_FINAL_SIGKILL:
3004 service_enter_dead(s, f, true);
3008 assert_not_reached("Uh, control process died at wrong time.");
3013 /* Notify clients about changed exit status */
3014 unit_add_to_dbus_queue(u);
3017 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3018 Service *s = SERVICE(u);
3021 assert(elapsed == 1);
3023 if (w == &s->watchdog_watch) {
3024 service_handle_watchdog(s);
3028 assert(w == &s->timer_watch);
3032 case SERVICE_START_PRE:
3034 log_warning("%s operation timed out. Terminating.", u->id);
3035 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3038 case SERVICE_START_POST:
3039 log_warning("%s operation timed out. Stopping.", u->id);
3040 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3043 case SERVICE_RELOAD:
3044 log_warning("%s operation timed out. Stopping.", u->id);
3045 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3046 service_enter_running(s, SERVICE_SUCCESS);
3050 log_warning("%s stopping timed out. Terminating.", u->id);
3051 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3054 case SERVICE_STOP_SIGTERM:
3055 if (s->exec_context.send_sigkill) {
3056 log_warning("%s stopping timed out. Killing.", u->id);
3057 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3059 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3060 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3065 case SERVICE_STOP_SIGKILL:
3066 /* Uh, we sent a SIGKILL and it is still not gone?
3067 * Must be something we cannot kill, so let's just be
3068 * weirded out and continue */
3070 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3071 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3074 case SERVICE_STOP_POST:
3075 log_warning("%s stopping timed out (2). Terminating.", u->id);
3076 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3079 case SERVICE_FINAL_SIGTERM:
3080 if (s->exec_context.send_sigkill) {
3081 log_warning("%s stopping timed out (2). Killing.", u->id);
3082 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3084 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3085 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3090 case SERVICE_FINAL_SIGKILL:
3091 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3092 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3095 case SERVICE_AUTO_RESTART:
3096 log_info("%s holdoff time over, scheduling restart.", u->id);
3097 service_enter_restart(s);
3101 assert_not_reached("Timeout at wrong time.");
3105 static void service_cgroup_notify_event(Unit *u) {
3106 Service *s = SERVICE(u);
3110 log_debug("%s: cgroup is empty", u->id);
3114 /* Waiting for SIGCHLD is usually more interesting,
3115 * because it includes return codes/signals. Which is
3116 * why we ignore the cgroup events for most cases,
3117 * except when we don't know pid which to expect the
3121 case SERVICE_START_POST:
3122 /* If we were hoping for the daemon to write its PID file,
3123 * we can give up now. */
3124 if (s->pid_file_pathspec) {
3125 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3126 service_unwatch_pid_file(s);
3127 if (s->state == SERVICE_START)
3128 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3130 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3134 case SERVICE_RUNNING:
3135 /* service_enter_running() will figure out what to do */
3136 service_enter_running(s, SERVICE_SUCCESS);
3139 case SERVICE_STOP_SIGTERM:
3140 case SERVICE_STOP_SIGKILL:
3142 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3143 service_enter_stop_post(s, SERVICE_SUCCESS);
3147 case SERVICE_FINAL_SIGTERM:
3148 case SERVICE_FINAL_SIGKILL:
3149 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3150 service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
3159 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3160 Service *s = SERVICE(u);
3165 if (s->notify_access == NOTIFY_NONE) {
3166 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3167 u->id, (unsigned long) pid);
3171 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3172 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3173 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3177 log_debug("%s: Got message", u->id);
3179 /* Interpret MAINPID= */
3180 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3181 (s->state == SERVICE_START ||
3182 s->state == SERVICE_START_POST ||
3183 s->state == SERVICE_RUNNING ||
3184 s->state == SERVICE_RELOAD)) {
3186 if (parse_pid(e + 8, &pid) < 0)
3187 log_warning("Failed to parse notification message %s", e);
3189 log_debug("%s: got %s", u->id, e);
3190 service_set_main_pid(s, pid);
3194 /* Interpret READY= */
3195 if (s->type == SERVICE_NOTIFY &&
3196 s->state == SERVICE_START &&
3197 strv_find(tags, "READY=1")) {
3198 log_debug("%s: got READY=1", u->id);
3200 service_enter_start_post(s);
3203 /* Interpret STATUS= */
3204 e = strv_find_prefix(tags, "STATUS=");
3210 if (!utf8_is_valid(e+7)) {
3211 log_warning("Status message in notification is not UTF-8 clean.");
3217 log_error("Failed to allocate string.");
3221 log_debug("%s: got %s", u->id, e);
3223 free(s->status_text);
3226 free(s->status_text);
3227 s->status_text = NULL;
3231 if (strv_find(tags, "WATCHDOG=1")) {
3232 log_debug("%s: got WATCHDOG=1", u->id);
3233 service_reset_watchdog(s);
3236 /* Notify clients about changed status or main pid */
3237 unit_add_to_dbus_queue(u);
3240 #ifdef HAVE_SYSV_COMPAT
3243 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3247 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3248 r = errno == ENOENT ? 0 : -errno;
3253 char l[LINE_MAX], *t;
3254 char **parsed = NULL;
3256 if (!fgets(l, sizeof(l), f)) {
3261 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3266 if (*t != '$' && *t != '<')
3269 parsed = strv_split(t,WHITESPACE);
3270 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3271 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3274 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3276 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3278 char *dep = NULL, *name, **j;
3280 STRV_FOREACH (j, parsed+1) {
3289 if (sysv_translate_facility(name, NULL, &dep) < 0)
3292 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3307 static int service_enumerate(Manager *m) {
3311 char *path = NULL, *fpath = NULL, *name = NULL;
3312 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3319 if (m->running_as != MANAGER_SYSTEM)
3322 zero(runlevel_services);
3324 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3325 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3329 path = join(*p, "/", rcnd_table[i].path, NULL);
3338 if (!(d = opendir(path))) {
3339 if (errno != ENOENT)
3340 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3345 while ((de = readdir(d))) {
3348 if (ignore_file(de->d_name))
3351 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3354 if (strlen(de->d_name) < 4)
3357 a = undecchar(de->d_name[1]);
3358 b = undecchar(de->d_name[2]);
3364 fpath = join(path, "/", de->d_name, NULL);
3370 if (access(fpath, X_OK) < 0) {
3372 if (errno != ENOENT)
3373 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3379 if (!(name = sysv_translate_name(de->d_name + 3))) {
3384 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3385 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3389 if (de->d_name[0] == 'S') {
3391 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3392 SERVICE(service)->sysv_start_priority_from_rcnd =
3393 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3395 SERVICE(service)->sysv_enabled = true;
3398 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3401 if ((r = set_put(runlevel_services[i], service)) < 0)
3404 } else if (de->d_name[0] == 'K' &&
3405 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3406 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3408 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3411 if ((r = set_put(shutdown_services, service)) < 0)
3417 /* Now we loaded all stubs and are aware of the lowest
3418 start-up priority for all services, not let's actually load
3419 the services, this will also tell us which services are
3420 actually native now */
3421 manager_dispatch_load_queue(m);
3423 /* If this is a native service, rely on native ways to pull in
3424 * a service, don't pull it in via sysv rcN.d links. */
3425 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3426 SET_FOREACH(service, runlevel_services[i], j) {
3427 service = unit_follow_merge(service);
3429 if (service->fragment_path)
3432 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3436 /* We honour K links only for halt/reboot. For the normal
3437 * runlevels we assume the stop jobs will be implicitly added
3438 * by the core logic. Also, we don't really distinguish here
3439 * between the runlevels 0 and 6 and just add them to the
3440 * special shutdown target. On SUSE the boot.d/ runlevel is
3441 * also used for shutdown, so we add links for that too to the
3442 * shutdown target.*/
3443 SET_FOREACH(service, shutdown_services, j) {
3444 service = unit_follow_merge(service);
3446 if (service->fragment_path)
3449 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3456 sysv_facility_in_insserv_conf (m);
3464 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3465 set_free(runlevel_services[i]);
3466 set_free(shutdown_services);
3475 static void service_bus_name_owner_change(
3478 const char *old_owner,
3479 const char *new_owner) {
3481 Service *s = SERVICE(u);
3486 assert(streq(s->bus_name, name));
3487 assert(old_owner || new_owner);
3489 if (old_owner && new_owner)
3490 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3492 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3494 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3496 s->bus_name_good = !!new_owner;
3498 if (s->type == SERVICE_DBUS) {
3500 /* service_enter_running() will figure out what to
3502 if (s->state == SERVICE_RUNNING)
3503 service_enter_running(s, SERVICE_SUCCESS);
3504 else if (s->state == SERVICE_START && new_owner)
3505 service_enter_start_post(s);
3507 } else if (new_owner &&
3509 (s->state == SERVICE_START ||
3510 s->state == SERVICE_START_POST ||
3511 s->state == SERVICE_RUNNING ||
3512 s->state == SERVICE_RELOAD)) {
3514 /* Try to acquire PID from bus service */
3515 log_debug("Trying to acquire PID from D-Bus name...");
3517 bus_query_pid(u->manager, name);
3521 static void service_bus_query_pid_done(
3526 Service *s = SERVICE(u);
3531 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3533 if (s->main_pid <= 0 &&
3534 (s->state == SERVICE_START ||
3535 s->state == SERVICE_START_POST ||
3536 s->state == SERVICE_RUNNING ||
3537 s->state == SERVICE_RELOAD))
3538 service_set_main_pid(s, pid);
3541 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3546 /* This is called by the socket code when instantiating a new
3547 * service for a stream socket and the socket needs to be
3550 if (UNIT(s)->load_state != UNIT_LOADED)
3553 if (s->socket_fd >= 0)
3556 if (s->state != SERVICE_DEAD)
3560 s->got_socket_fd = true;
3562 unit_ref_set(&s->accept_socket, UNIT(sock));
3564 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3567 static void service_reset_failed(Unit *u) {
3568 Service *s = SERVICE(u);
3572 if (s->state == SERVICE_FAILED)
3573 service_set_state(s, SERVICE_DEAD);
3575 s->result = SERVICE_SUCCESS;
3576 s->reload_result = SERVICE_SUCCESS;
3579 static bool service_need_daemon_reload(Unit *u) {
3580 Service *s = SERVICE(u);
3584 #ifdef HAVE_SYSV_COMPAT
3589 if (stat(s->sysv_path, &st) < 0)
3590 /* What, cannot access this anymore? */
3593 if (s->sysv_mtime > 0 &&
3594 timespec_load(&st.st_mtim) != s->sysv_mtime)
3602 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3603 Service *s = SERVICE(u);
3605 Set *pid_set = NULL;
3609 if (s->main_pid <= 0 && who == KILL_MAIN) {
3610 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3614 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3615 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3619 if (who == KILL_CONTROL || who == KILL_ALL)
3620 if (s->control_pid > 0)
3621 if (kill(s->control_pid, signo) < 0)
3624 if (who == KILL_MAIN || who == KILL_ALL)
3625 if (s->main_pid > 0)
3626 if (kill(s->main_pid, signo) < 0)
3629 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3632 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3635 /* Exclude the control/main pid from being killed via the cgroup */
3636 if (s->control_pid > 0)
3637 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3642 if (s->main_pid > 0)
3643 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3648 if ((q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
3649 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3660 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3661 [SERVICE_DEAD] = "dead",
3662 [SERVICE_START_PRE] = "start-pre",
3663 [SERVICE_START] = "start",
3664 [SERVICE_START_POST] = "start-post",
3665 [SERVICE_RUNNING] = "running",
3666 [SERVICE_EXITED] = "exited",
3667 [SERVICE_RELOAD] = "reload",
3668 [SERVICE_STOP] = "stop",
3669 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3670 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3671 [SERVICE_STOP_POST] = "stop-post",
3672 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3673 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3674 [SERVICE_FAILED] = "failed",
3675 [SERVICE_AUTO_RESTART] = "auto-restart",
3678 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3680 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3681 [SERVICE_RESTART_NO] = "no",
3682 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3683 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3684 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3685 [SERVICE_RESTART_ALWAYS] = "always"
3688 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3690 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3691 [SERVICE_SIMPLE] = "simple",
3692 [SERVICE_FORKING] = "forking",
3693 [SERVICE_ONESHOT] = "oneshot",
3694 [SERVICE_DBUS] = "dbus",
3695 [SERVICE_NOTIFY] = "notify"
3698 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3700 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3701 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3702 [SERVICE_EXEC_START] = "ExecStart",
3703 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3704 [SERVICE_EXEC_RELOAD] = "ExecReload",
3705 [SERVICE_EXEC_STOP] = "ExecStop",
3706 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3709 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3711 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3712 [NOTIFY_NONE] = "none",
3713 [NOTIFY_MAIN] = "main",
3714 [NOTIFY_ALL] = "all"
3717 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3719 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3720 [SERVICE_SUCCESS] = "success",
3721 [SERVICE_FAILURE_RESOURCES] = "resources",
3722 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3723 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3724 [SERVICE_FAILURE_SIGNAL] = "signal",
3725 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3726 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3729 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3731 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3732 [SERVICE_START_LIMIT_NONE] = "none",
3733 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3734 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3735 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3737 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3739 const UnitVTable service_vtable = {
3740 .suffix = ".service",
3741 .object_size = sizeof(Service),
3746 .show_status = true,
3748 .init = service_init,
3749 .done = service_done,
3750 .load = service_load,
3752 .coldplug = service_coldplug,
3754 .dump = service_dump,
3756 .start = service_start,
3757 .stop = service_stop,
3758 .reload = service_reload,
3760 .can_reload = service_can_reload,
3762 .kill = service_kill,
3764 .serialize = service_serialize,
3765 .deserialize_item = service_deserialize_item,
3767 .active_state = service_active_state,
3768 .sub_state_to_string = service_sub_state_to_string,
3770 .check_gc = service_check_gc,
3771 .check_snapshot = service_check_snapshot,
3773 .sigchld_event = service_sigchld_event,
3774 .timer_event = service_timer_event,
3775 .fd_event = service_fd_event,
3777 .reset_failed = service_reset_failed,
3779 .need_daemon_reload = service_need_daemon_reload,
3781 .cgroup_notify_empty = service_cgroup_notify_event,
3782 .notify_message = service_notify_message,
3784 .bus_name_owner_change = service_bus_name_owner_change,
3785 .bus_query_pid_done = service_bus_query_pid_done,
3787 .bus_interface = "org.freedesktop.systemd1.Service",
3788 .bus_message_handler = bus_service_message_handler,
3789 .bus_invalidating_properties = bus_service_invalidating_properties,
3791 #ifdef HAVE_SYSV_COMPAT
3792 .enumerate = service_enumerate