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 "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,
1694 int *fds = NULL, *fdsbuf = NULL;
1695 unsigned n_fds = 0, n_env = 0;
1696 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1703 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1704 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1705 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1707 if (s->socket_fd >= 0) {
1708 fds = &s->socket_fd;
1711 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1718 if (timeout && s->timeout_usec) {
1719 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1722 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1724 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1729 if (!(our_env = new0(char*, 4))) {
1734 if (set_notify_socket)
1735 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1740 if (s->main_pid > 0)
1741 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1746 if (s->watchdog_usec > 0)
1747 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1752 if (!(final_env = strv_env_merge(2,
1753 UNIT(s)->manager->environment,
1768 UNIT(s)->manager->confirm_spawn,
1769 UNIT(s)->cgroup_bondings,
1770 UNIT(s)->cgroup_attributes,
1771 is_control ? "control" : NULL,
1772 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1779 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1780 /* FIXME: we need to do something here */
1786 strv_free(final_env);
1796 strv_free(final_env);
1799 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1804 static int main_pid_good(Service *s) {
1807 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1810 /* If we know the pid file, then lets just check if it is
1812 if (s->main_pid_known) {
1814 /* If it's an alien child let's check if it is still
1816 if (s->main_pid_alien)
1817 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1819 /* .. otherwise assume we'll get a SIGCHLD for it,
1820 * which we really should wait for to collect exit
1821 * status and code */
1822 return s->main_pid > 0;
1825 /* We don't know the pid */
1829 static int control_pid_good(Service *s) {
1832 return s->control_pid > 0;
1835 static int cgroup_good(Service *s) {
1840 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1846 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1850 if (f != SERVICE_SUCCESS)
1853 if (allow_restart &&
1854 !s->forbid_restart &&
1855 (s->restart == SERVICE_RESTART_ALWAYS ||
1856 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1857 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1858 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1859 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1861 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1865 service_set_state(s, SERVICE_AUTO_RESTART);
1867 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1869 s->forbid_restart = false;
1874 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1875 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1878 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1880 static void service_enter_stop_post(Service *s, ServiceResult f) {
1884 if (f != SERVICE_SUCCESS)
1887 service_unwatch_control_pid(s);
1889 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1890 s->control_command_id = SERVICE_EXEC_STOP_POST;
1892 r = service_spawn(s,
1896 !s->permissions_start_only,
1897 !s->root_directory_start_only,
1906 service_set_state(s, SERVICE_STOP_POST);
1908 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1913 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1914 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1917 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1919 Set *pid_set = NULL;
1920 bool wait_for_exit = false;
1924 if (f != SERVICE_SUCCESS)
1927 if (s->exec_context.kill_mode != KILL_NONE) {
1928 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1930 if (s->main_pid > 0) {
1931 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1932 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1934 wait_for_exit = !s->main_pid_alien;
1937 if (s->control_pid > 0) {
1938 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1939 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1941 wait_for_exit = true;
1944 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1946 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1951 /* Exclude the main/control pids from being killed via the cgroup */
1952 if (s->main_pid > 0)
1953 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1956 if (s->control_pid > 0)
1957 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1960 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, pid_set, NULL);
1962 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1963 log_warning("Failed to kill control group: %s", strerror(-r));
1965 wait_for_exit = true;
1972 if (wait_for_exit) {
1973 if (s->timeout_usec > 0)
1974 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1977 service_set_state(s, state);
1978 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1979 service_enter_stop_post(s, SERVICE_SUCCESS);
1981 service_enter_dead(s, SERVICE_SUCCESS, true);
1986 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
1988 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1989 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
1991 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
1997 static void service_enter_stop(Service *s, ServiceResult f) {
2002 if (f != SERVICE_SUCCESS)
2005 service_unwatch_control_pid(s);
2007 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2008 s->control_command_id = SERVICE_EXEC_STOP;
2010 r = service_spawn(s,
2014 !s->permissions_start_only,
2015 !s->root_directory_start_only,
2023 service_set_state(s, SERVICE_STOP);
2025 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2030 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2031 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2034 static void service_enter_running(Service *s, ServiceResult f) {
2035 int main_pid_ok, cgroup_ok;
2038 if (f != SERVICE_SUCCESS)
2041 main_pid_ok = main_pid_good(s);
2042 cgroup_ok = cgroup_good(s);
2044 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2045 (s->bus_name_good || s->type != SERVICE_DBUS))
2046 service_set_state(s, SERVICE_RUNNING);
2047 else if (s->remain_after_exit)
2048 service_set_state(s, SERVICE_EXITED);
2050 service_enter_stop(s, SERVICE_SUCCESS);
2053 static void service_enter_start_post(Service *s) {
2057 service_unwatch_control_pid(s);
2059 if (s->watchdog_usec > 0)
2060 service_reset_watchdog(s);
2062 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2063 s->control_command_id = SERVICE_EXEC_START_POST;
2065 r = service_spawn(s,
2069 !s->permissions_start_only,
2070 !s->root_directory_start_only,
2078 service_set_state(s, SERVICE_START_POST);
2080 service_enter_running(s, SERVICE_SUCCESS);
2085 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2086 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2089 static void service_enter_start(Service *s) {
2096 assert(s->exec_command[SERVICE_EXEC_START]);
2097 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2099 if (s->type == SERVICE_FORKING)
2100 service_unwatch_control_pid(s);
2102 service_unwatch_main_pid(s);
2104 /* We want to ensure that nobody leaks processes from
2105 * START_PRE here, so let's go on a killing spree, People
2106 * should not spawn long running processes from START_PRE. */
2107 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL, "control");
2109 if (s->type == SERVICE_FORKING) {
2110 s->control_command_id = SERVICE_EXEC_START;
2111 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2113 s->main_command = NULL;
2115 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2116 s->control_command = NULL;
2118 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2121 r = service_spawn(s,
2123 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
2128 s->notify_access != NOTIFY_NONE,
2134 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2135 /* For simple services we immediately start
2136 * the START_POST binaries. */
2138 service_set_main_pid(s, pid);
2139 service_enter_start_post(s);
2141 } else if (s->type == SERVICE_FORKING) {
2143 /* For forking services we wait until the start
2144 * process exited. */
2146 s->control_pid = pid;
2147 service_set_state(s, SERVICE_START);
2149 } else if (s->type == SERVICE_ONESHOT ||
2150 s->type == SERVICE_DBUS ||
2151 s->type == SERVICE_NOTIFY) {
2153 /* For oneshot services we wait until the start
2154 * process exited, too, but it is our main process. */
2156 /* For D-Bus services we know the main pid right away,
2157 * but wait for the bus name to appear on the
2158 * bus. Notify services are similar. */
2160 service_set_main_pid(s, pid);
2161 service_set_state(s, SERVICE_START);
2163 assert_not_reached("Unknown service type");
2168 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2169 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2172 static void service_enter_start_pre(Service *s) {
2177 service_unwatch_control_pid(s);
2179 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2181 /* Before we start anything, let's clear up what might
2182 * be left from previous runs. */
2183 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL, "control");
2185 s->control_command_id = SERVICE_EXEC_START_PRE;
2187 r = service_spawn(s,
2191 !s->permissions_start_only,
2192 !s->root_directory_start_only,
2200 service_set_state(s, SERVICE_START_PRE);
2202 service_enter_start(s);
2207 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2208 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2211 static void service_enter_restart(Service *s) {
2216 dbus_error_init(&error);
2219 log_info("Job pending for unit, delaying automatic restart.");
2221 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2225 /* Any units that are bound to this service must also be
2226 * restarted. We use JOB_RESTART (instead of the more obvious
2227 * JOB_START) here so that those dependency jobs will be added
2229 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2233 log_debug("%s scheduled restart job.", UNIT(s)->id);
2237 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2238 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2240 dbus_error_free(&error);
2243 static void service_enter_reload(Service *s) {
2248 service_unwatch_control_pid(s);
2250 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2251 s->control_command_id = SERVICE_EXEC_RELOAD;
2253 r = service_spawn(s,
2257 !s->permissions_start_only,
2258 !s->root_directory_start_only,
2266 service_set_state(s, SERVICE_RELOAD);
2268 service_enter_running(s, SERVICE_SUCCESS);
2273 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2274 s->reload_result = SERVICE_FAILURE_RESOURCES;
2275 service_enter_running(s, SERVICE_SUCCESS);
2278 static void service_run_next_control(Service *s) {
2282 assert(s->control_command);
2283 assert(s->control_command->command_next);
2285 assert(s->control_command_id != SERVICE_EXEC_START);
2287 s->control_command = s->control_command->command_next;
2288 service_unwatch_control_pid(s);
2290 r = service_spawn(s,
2294 !s->permissions_start_only,
2295 !s->root_directory_start_only,
2296 s->control_command_id == SERVICE_EXEC_START_PRE ||
2297 s->control_command_id == SERVICE_EXEC_STOP_POST,
2307 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2309 if (s->state == SERVICE_START_PRE)
2310 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2311 else if (s->state == SERVICE_STOP)
2312 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2313 else if (s->state == SERVICE_STOP_POST)
2314 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2315 else if (s->state == SERVICE_RELOAD) {
2316 s->reload_result = SERVICE_FAILURE_RESOURCES;
2317 service_enter_running(s, SERVICE_SUCCESS);
2319 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2322 static void service_run_next_main(Service *s) {
2327 assert(s->main_command);
2328 assert(s->main_command->command_next);
2329 assert(s->type == SERVICE_ONESHOT);
2331 s->main_command = s->main_command->command_next;
2332 service_unwatch_main_pid(s);
2334 r = service_spawn(s,
2341 s->notify_access != NOTIFY_NONE,
2347 service_set_main_pid(s, pid);
2352 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2353 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2356 static int service_start_limit_test(Service *s) {
2359 if (ratelimit_test(&s->start_limit))
2362 switch (s->start_limit_action) {
2364 case SERVICE_START_LIMIT_NONE:
2365 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2368 case SERVICE_START_LIMIT_REBOOT: {
2372 dbus_error_init(&error);
2374 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2376 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2378 log_error("Failed to reboot: %s.", bus_error(&error, r));
2379 dbus_error_free(&error);
2385 case SERVICE_START_LIMIT_REBOOT_FORCE:
2386 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2387 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2390 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2391 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2392 reboot(RB_AUTOBOOT);
2396 log_error("start limit action=%i", s->start_limit_action);
2397 assert_not_reached("Unknown StartLimitAction.");
2403 static int service_start(Unit *u) {
2404 Service *s = SERVICE(u);
2409 /* We cannot fulfill this request right now, try again later
2411 if (s->state == SERVICE_STOP ||
2412 s->state == SERVICE_STOP_SIGTERM ||
2413 s->state == SERVICE_STOP_SIGKILL ||
2414 s->state == SERVICE_STOP_POST ||
2415 s->state == SERVICE_FINAL_SIGTERM ||
2416 s->state == SERVICE_FINAL_SIGKILL)
2419 /* Already on it! */
2420 if (s->state == SERVICE_START_PRE ||
2421 s->state == SERVICE_START ||
2422 s->state == SERVICE_START_POST)
2425 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2427 /* Make sure we don't enter a busy loop of some kind. */
2428 r = service_start_limit_test(s);
2430 service_notify_sockets_dead(s, true);
2434 s->result = SERVICE_SUCCESS;
2435 s->reload_result = SERVICE_SUCCESS;
2436 s->main_pid_known = false;
2437 s->main_pid_alien = false;
2438 s->forbid_restart = false;
2440 service_enter_start_pre(s);
2444 static int service_stop(Unit *u) {
2445 Service *s = SERVICE(u);
2449 /* This is a user request, so don't do restarts on this
2451 s->forbid_restart = true;
2454 if (s->state == SERVICE_STOP ||
2455 s->state == SERVICE_STOP_SIGTERM ||
2456 s->state == SERVICE_STOP_SIGKILL ||
2457 s->state == SERVICE_STOP_POST ||
2458 s->state == SERVICE_FINAL_SIGTERM ||
2459 s->state == SERVICE_FINAL_SIGKILL)
2462 /* Don't allow a restart */
2463 if (s->state == SERVICE_AUTO_RESTART) {
2464 service_set_state(s, SERVICE_DEAD);
2468 /* If there's already something running we go directly into
2470 if (s->state == SERVICE_START_PRE ||
2471 s->state == SERVICE_START ||
2472 s->state == SERVICE_START_POST ||
2473 s->state == SERVICE_RELOAD) {
2474 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2478 assert(s->state == SERVICE_RUNNING ||
2479 s->state == SERVICE_EXITED);
2481 service_enter_stop(s, SERVICE_SUCCESS);
2485 static int service_reload(Unit *u) {
2486 Service *s = SERVICE(u);
2490 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2492 service_enter_reload(s);
2496 static bool service_can_reload(Unit *u) {
2497 Service *s = SERVICE(u);
2501 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2504 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2505 Service *s = SERVICE(u);
2511 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2512 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2513 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2515 if (s->control_pid > 0)
2516 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2518 if (s->main_pid_known && s->main_pid > 0)
2519 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2521 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2524 unit_serialize_item(u, f, "status-text", s->status_text);
2526 /* FIXME: There's a minor uncleanliness here: if there are
2527 * multiple commands attached here, we will start from the
2528 * first one again */
2529 if (s->control_command_id >= 0)
2530 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2532 if (s->socket_fd >= 0) {
2535 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2538 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2541 if (s->main_exec_status.pid > 0) {
2542 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2543 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2544 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2546 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2547 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2548 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2551 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2552 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2557 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2558 Service *s = SERVICE(u);
2565 if (streq(key, "state")) {
2568 if ((state = service_state_from_string(value)) < 0)
2569 log_debug("Failed to parse state value %s", value);
2571 s->deserialized_state = state;
2572 } else if (streq(key, "result")) {
2575 f = service_result_from_string(value);
2577 log_debug("Failed to parse result value %s", value);
2578 else if (f != SERVICE_SUCCESS)
2581 } else if (streq(key, "reload-result")) {
2584 f = service_result_from_string(value);
2586 log_debug("Failed to parse reload result value %s", value);
2587 else if (f != SERVICE_SUCCESS)
2588 s->reload_result = f;
2590 } else if (streq(key, "control-pid")) {
2593 if (parse_pid(value, &pid) < 0)
2594 log_debug("Failed to parse control-pid value %s", value);
2596 s->control_pid = pid;
2597 } else if (streq(key, "main-pid")) {
2600 if (parse_pid(value, &pid) < 0)
2601 log_debug("Failed to parse main-pid value %s", value);
2603 service_set_main_pid(s, (pid_t) pid);
2604 } else if (streq(key, "main-pid-known")) {
2607 if ((b = parse_boolean(value)) < 0)
2608 log_debug("Failed to parse main-pid-known value %s", value);
2610 s->main_pid_known = b;
2611 } else if (streq(key, "status-text")) {
2614 if ((t = strdup(value))) {
2615 free(s->status_text);
2619 } else if (streq(key, "control-command")) {
2620 ServiceExecCommand id;
2622 if ((id = service_exec_command_from_string(value)) < 0)
2623 log_debug("Failed to parse exec-command value %s", value);
2625 s->control_command_id = id;
2626 s->control_command = s->exec_command[id];
2628 } else if (streq(key, "socket-fd")) {
2631 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2632 log_debug("Failed to parse socket-fd value %s", value);
2635 if (s->socket_fd >= 0)
2636 close_nointr_nofail(s->socket_fd);
2637 s->socket_fd = fdset_remove(fds, fd);
2639 } else if (streq(key, "main-exec-status-pid")) {
2642 if (parse_pid(value, &pid) < 0)
2643 log_debug("Failed to parse main-exec-status-pid value %s", value);
2645 s->main_exec_status.pid = pid;
2646 } else if (streq(key, "main-exec-status-code")) {
2649 if (safe_atoi(value, &i) < 0)
2650 log_debug("Failed to parse main-exec-status-code value %s", value);
2652 s->main_exec_status.code = i;
2653 } else if (streq(key, "main-exec-status-status")) {
2656 if (safe_atoi(value, &i) < 0)
2657 log_debug("Failed to parse main-exec-status-status value %s", value);
2659 s->main_exec_status.status = i;
2660 } else if (streq(key, "main-exec-status-start"))
2661 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2662 else if (streq(key, "main-exec-status-exit"))
2663 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2664 else if (streq(key, "watchdog-timestamp"))
2665 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2667 log_debug("Unknown serialization key '%s'", key);
2672 static UnitActiveState service_active_state(Unit *u) {
2675 return state_translation_table[SERVICE(u)->state];
2678 static const char *service_sub_state_to_string(Unit *u) {
2681 return service_state_to_string(SERVICE(u)->state);
2684 static bool service_check_gc(Unit *u) {
2685 Service *s = SERVICE(u);
2689 /* Never clean up services that still have a process around,
2690 * even if the service is formally dead. */
2691 if (cgroup_good(s) > 0 ||
2692 main_pid_good(s) > 0 ||
2693 control_pid_good(s) > 0)
2696 #ifdef HAVE_SYSV_COMPAT
2704 static bool service_check_snapshot(Unit *u) {
2705 Service *s = SERVICE(u);
2709 return !s->got_socket_fd;
2712 static int service_retry_pid_file(Service *s) {
2715 assert(s->pid_file);
2716 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2718 r = service_load_pid_file(s, false);
2722 service_unwatch_pid_file(s);
2724 service_enter_running(s, SERVICE_SUCCESS);
2728 static int service_watch_pid_file(Service *s) {
2731 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2732 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2736 /* the pidfile might have appeared just before we set the watch */
2737 service_retry_pid_file(s);
2741 log_error("Failed to set a watch for %s's PID file %s: %s",
2742 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2743 service_unwatch_pid_file(s);
2747 static int service_demand_pid_file(Service *s) {
2750 assert(s->pid_file);
2751 assert(!s->pid_file_pathspec);
2753 ps = new0(PathSpec, 1);
2757 ps->path = strdup(s->pid_file);
2763 path_kill_slashes(ps->path);
2765 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2766 * keep their PID file open all the time. */
2767 ps->type = PATH_MODIFIED;
2768 ps->inotify_fd = -1;
2770 s->pid_file_pathspec = ps;
2772 return service_watch_pid_file(s);
2775 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2776 Service *s = SERVICE(u);
2780 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2781 assert(s->pid_file_pathspec);
2782 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2784 log_debug("inotify event for %s", u->id);
2786 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2789 if (service_retry_pid_file(s) == 0)
2792 if (service_watch_pid_file(s) < 0)
2797 service_unwatch_pid_file(s);
2798 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2801 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2802 Service *s = SERVICE(u);
2808 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2809 f = SERVICE_SUCCESS;
2810 else if (code == CLD_EXITED)
2811 f = SERVICE_FAILURE_EXIT_CODE;
2812 else if (code == CLD_KILLED)
2813 f = SERVICE_FAILURE_SIGNAL;
2814 else if (code == CLD_DUMPED)
2815 f = SERVICE_FAILURE_CORE_DUMP;
2817 assert_not_reached("Unknown code");
2819 if (s->main_pid == pid) {
2820 /* Forking services may occasionally move to a new PID.
2821 * As long as they update the PID file before exiting the old
2822 * PID, they're fine. */
2823 if (service_load_pid_file(s, false) == 0)
2827 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2829 /* If this is not a forking service than the main
2830 * process got started and hence we copy the exit
2831 * status so that it is recorded both as main and as
2832 * control process exit status */
2833 if (s->main_command) {
2834 s->main_command->exec_status = s->main_exec_status;
2836 if (s->main_command->ignore)
2837 f = SERVICE_SUCCESS;
2840 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2841 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2843 if (f != SERVICE_SUCCESS)
2846 if (s->main_command &&
2847 s->main_command->command_next &&
2848 f == SERVICE_SUCCESS) {
2850 /* There is another command to *
2851 * execute, so let's do that. */
2853 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2854 service_run_next_main(s);
2858 /* The service exited, so the service is officially
2860 s->main_command = NULL;
2864 case SERVICE_START_POST:
2865 case SERVICE_RELOAD:
2867 /* Need to wait until the operation is
2872 if (s->type == SERVICE_ONESHOT) {
2873 /* This was our main goal, so let's go on */
2874 if (f == SERVICE_SUCCESS)
2875 service_enter_start_post(s);
2877 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2880 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2885 case SERVICE_RUNNING:
2886 service_enter_running(s, f);
2889 case SERVICE_STOP_SIGTERM:
2890 case SERVICE_STOP_SIGKILL:
2892 if (!control_pid_good(s))
2893 service_enter_stop_post(s, f);
2895 /* If there is still a control process, wait for that first */
2899 assert_not_reached("Uh, main process died at wrong time.");
2903 } else if (s->control_pid == pid) {
2907 if (s->control_command) {
2908 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2910 if (s->control_command->ignore)
2911 f = SERVICE_SUCCESS;
2914 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2915 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2917 if (f != SERVICE_SUCCESS)
2920 if (s->control_command &&
2921 s->control_command->command_next &&
2922 f == SERVICE_SUCCESS) {
2924 /* There is another command to *
2925 * execute, so let's do that. */
2927 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2928 service_run_next_control(s);
2931 /* No further commands for this step, so let's
2932 * figure out what to do next */
2934 s->control_command = NULL;
2935 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2937 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
2941 case SERVICE_START_PRE:
2942 if (f == SERVICE_SUCCESS)
2943 service_enter_start(s);
2945 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2949 assert(s->type == SERVICE_FORKING);
2951 if (f != SERVICE_SUCCESS) {
2952 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2957 bool has_start_post;
2960 /* Let's try to load the pid file here if we can.
2961 * The PID file might actually be created by a START_POST
2962 * script. In that case don't worry if the loading fails. */
2964 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
2965 r = service_load_pid_file(s, !has_start_post);
2966 if (!has_start_post && r < 0) {
2967 r = service_demand_pid_file(s);
2968 if (r < 0 || !cgroup_good(s))
2969 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2973 service_search_main_pid(s);
2975 service_enter_start_post(s);
2978 case SERVICE_START_POST:
2979 if (f != SERVICE_SUCCESS) {
2980 service_enter_stop(s, f);
2987 r = service_load_pid_file(s, true);
2989 r = service_demand_pid_file(s);
2990 if (r < 0 || !cgroup_good(s))
2991 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2995 service_search_main_pid(s);
2997 service_enter_running(s, SERVICE_SUCCESS);
3000 case SERVICE_RELOAD:
3001 if (f == SERVICE_SUCCESS) {
3002 service_load_pid_file(s, true);
3003 service_search_main_pid(s);
3006 s->reload_result = f;
3007 service_enter_running(s, SERVICE_SUCCESS);
3011 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3014 case SERVICE_STOP_SIGTERM:
3015 case SERVICE_STOP_SIGKILL:
3016 if (main_pid_good(s) <= 0)
3017 service_enter_stop_post(s, f);
3019 /* If there is still a service
3020 * process around, wait until
3021 * that one quit, too */
3024 case SERVICE_STOP_POST:
3025 case SERVICE_FINAL_SIGTERM:
3026 case SERVICE_FINAL_SIGKILL:
3027 service_enter_dead(s, f, true);
3031 assert_not_reached("Uh, control process died at wrong time.");
3036 /* Notify clients about changed exit status */
3037 unit_add_to_dbus_queue(u);
3040 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3041 Service *s = SERVICE(u);
3044 assert(elapsed == 1);
3046 if (w == &s->watchdog_watch) {
3047 service_handle_watchdog(s);
3051 assert(w == &s->timer_watch);
3055 case SERVICE_START_PRE:
3057 log_warning("%s operation timed out. Terminating.", u->id);
3058 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3061 case SERVICE_START_POST:
3062 log_warning("%s operation timed out. Stopping.", u->id);
3063 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3066 case SERVICE_RELOAD:
3067 log_warning("%s operation timed out. Stopping.", u->id);
3068 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3069 service_enter_running(s, SERVICE_SUCCESS);
3073 log_warning("%s stopping timed out. Terminating.", u->id);
3074 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3077 case SERVICE_STOP_SIGTERM:
3078 if (s->exec_context.send_sigkill) {
3079 log_warning("%s stopping timed out. Killing.", u->id);
3080 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3082 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3083 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3088 case SERVICE_STOP_SIGKILL:
3089 /* Uh, we sent a SIGKILL and it is still not gone?
3090 * Must be something we cannot kill, so let's just be
3091 * weirded out and continue */
3093 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3094 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3097 case SERVICE_STOP_POST:
3098 log_warning("%s stopping timed out (2). Terminating.", u->id);
3099 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3102 case SERVICE_FINAL_SIGTERM:
3103 if (s->exec_context.send_sigkill) {
3104 log_warning("%s stopping timed out (2). Killing.", u->id);
3105 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3107 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3108 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3113 case SERVICE_FINAL_SIGKILL:
3114 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3115 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3118 case SERVICE_AUTO_RESTART:
3119 log_info("%s holdoff time over, scheduling restart.", u->id);
3120 service_enter_restart(s);
3124 assert_not_reached("Timeout at wrong time.");
3128 static void service_cgroup_notify_event(Unit *u) {
3129 Service *s = SERVICE(u);
3133 log_debug("%s: cgroup is empty", u->id);
3137 /* Waiting for SIGCHLD is usually more interesting,
3138 * because it includes return codes/signals. Which is
3139 * why we ignore the cgroup events for most cases,
3140 * except when we don't know pid which to expect the
3144 case SERVICE_START_POST:
3145 /* If we were hoping for the daemon to write its PID file,
3146 * we can give up now. */
3147 if (s->pid_file_pathspec) {
3148 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3149 service_unwatch_pid_file(s);
3150 if (s->state == SERVICE_START)
3151 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3153 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3157 case SERVICE_RUNNING:
3158 /* service_enter_running() will figure out what to do */
3159 service_enter_running(s, SERVICE_SUCCESS);
3162 case SERVICE_STOP_SIGTERM:
3163 case SERVICE_STOP_SIGKILL:
3165 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3166 service_enter_stop_post(s, SERVICE_SUCCESS);
3170 case SERVICE_FINAL_SIGTERM:
3171 case SERVICE_FINAL_SIGKILL:
3172 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3173 service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
3182 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3183 Service *s = SERVICE(u);
3188 if (s->notify_access == NOTIFY_NONE) {
3189 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3190 u->id, (unsigned long) pid);
3194 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3195 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3196 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3200 log_debug("%s: Got message", u->id);
3202 /* Interpret MAINPID= */
3203 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3204 (s->state == SERVICE_START ||
3205 s->state == SERVICE_START_POST ||
3206 s->state == SERVICE_RUNNING ||
3207 s->state == SERVICE_RELOAD)) {
3209 if (parse_pid(e + 8, &pid) < 0)
3210 log_warning("Failed to parse notification message %s", e);
3212 log_debug("%s: got %s", u->id, e);
3213 service_set_main_pid(s, pid);
3217 /* Interpret READY= */
3218 if (s->type == SERVICE_NOTIFY &&
3219 s->state == SERVICE_START &&
3220 strv_find(tags, "READY=1")) {
3221 log_debug("%s: got READY=1", u->id);
3223 service_enter_start_post(s);
3226 /* Interpret STATUS= */
3227 e = strv_find_prefix(tags, "STATUS=");
3233 if (!utf8_is_valid(e+7)) {
3234 log_warning("Status message in notification is not UTF-8 clean.");
3240 log_error("Failed to allocate string.");
3244 log_debug("%s: got %s", u->id, e);
3246 free(s->status_text);
3249 free(s->status_text);
3250 s->status_text = NULL;
3254 if (strv_find(tags, "WATCHDOG=1")) {
3255 log_debug("%s: got WATCHDOG=1", u->id);
3256 service_reset_watchdog(s);
3259 /* Notify clients about changed status or main pid */
3260 unit_add_to_dbus_queue(u);
3263 #ifdef HAVE_SYSV_COMPAT
3266 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3270 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3271 r = errno == ENOENT ? 0 : -errno;
3276 char l[LINE_MAX], *t;
3277 char **parsed = NULL;
3279 if (!fgets(l, sizeof(l), f)) {
3284 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3289 if (*t != '$' && *t != '<')
3292 parsed = strv_split(t,WHITESPACE);
3293 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3294 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3297 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3299 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3301 char *dep = NULL, *name, **j;
3303 STRV_FOREACH (j, parsed+1) {
3312 if (sysv_translate_facility(name, NULL, &dep) < 0)
3315 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3330 static int service_enumerate(Manager *m) {
3334 char *path = NULL, *fpath = NULL, *name = NULL;
3335 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3342 if (m->running_as != MANAGER_SYSTEM)
3345 zero(runlevel_services);
3347 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3348 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3352 path = join(*p, "/", rcnd_table[i].path, NULL);
3361 if (!(d = opendir(path))) {
3362 if (errno != ENOENT)
3363 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3368 while ((de = readdir(d))) {
3371 if (ignore_file(de->d_name))
3374 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3377 if (strlen(de->d_name) < 4)
3380 a = undecchar(de->d_name[1]);
3381 b = undecchar(de->d_name[2]);
3387 fpath = join(path, "/", de->d_name, NULL);
3393 if (access(fpath, X_OK) < 0) {
3395 if (errno != ENOENT)
3396 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3402 if (!(name = sysv_translate_name(de->d_name + 3))) {
3407 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3408 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3412 if (de->d_name[0] == 'S') {
3414 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3415 SERVICE(service)->sysv_start_priority_from_rcnd =
3416 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3418 SERVICE(service)->sysv_enabled = true;
3421 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3424 if ((r = set_put(runlevel_services[i], service)) < 0)
3427 } else if (de->d_name[0] == 'K' &&
3428 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3429 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3431 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3434 if ((r = set_put(shutdown_services, service)) < 0)
3440 /* Now we loaded all stubs and are aware of the lowest
3441 start-up priority for all services, not let's actually load
3442 the services, this will also tell us which services are
3443 actually native now */
3444 manager_dispatch_load_queue(m);
3446 /* If this is a native service, rely on native ways to pull in
3447 * a service, don't pull it in via sysv rcN.d links. */
3448 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3449 SET_FOREACH(service, runlevel_services[i], j) {
3450 service = unit_follow_merge(service);
3452 if (service->fragment_path)
3455 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3459 /* We honour K links only for halt/reboot. For the normal
3460 * runlevels we assume the stop jobs will be implicitly added
3461 * by the core logic. Also, we don't really distinguish here
3462 * between the runlevels 0 and 6 and just add them to the
3463 * special shutdown target. On SUSE the boot.d/ runlevel is
3464 * also used for shutdown, so we add links for that too to the
3465 * shutdown target.*/
3466 SET_FOREACH(service, shutdown_services, j) {
3467 service = unit_follow_merge(service);
3469 if (service->fragment_path)
3472 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3479 sysv_facility_in_insserv_conf (m);
3487 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3488 set_free(runlevel_services[i]);
3489 set_free(shutdown_services);
3498 static void service_bus_name_owner_change(
3501 const char *old_owner,
3502 const char *new_owner) {
3504 Service *s = SERVICE(u);
3509 assert(streq(s->bus_name, name));
3510 assert(old_owner || new_owner);
3512 if (old_owner && new_owner)
3513 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3515 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3517 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3519 s->bus_name_good = !!new_owner;
3521 if (s->type == SERVICE_DBUS) {
3523 /* service_enter_running() will figure out what to
3525 if (s->state == SERVICE_RUNNING)
3526 service_enter_running(s, SERVICE_SUCCESS);
3527 else if (s->state == SERVICE_START && new_owner)
3528 service_enter_start_post(s);
3530 } else if (new_owner &&
3532 (s->state == SERVICE_START ||
3533 s->state == SERVICE_START_POST ||
3534 s->state == SERVICE_RUNNING ||
3535 s->state == SERVICE_RELOAD)) {
3537 /* Try to acquire PID from bus service */
3538 log_debug("Trying to acquire PID from D-Bus name...");
3540 bus_query_pid(u->manager, name);
3544 static void service_bus_query_pid_done(
3549 Service *s = SERVICE(u);
3554 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3556 if (s->main_pid <= 0 &&
3557 (s->state == SERVICE_START ||
3558 s->state == SERVICE_START_POST ||
3559 s->state == SERVICE_RUNNING ||
3560 s->state == SERVICE_RELOAD))
3561 service_set_main_pid(s, pid);
3564 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3569 /* This is called by the socket code when instantiating a new
3570 * service for a stream socket and the socket needs to be
3573 if (UNIT(s)->load_state != UNIT_LOADED)
3576 if (s->socket_fd >= 0)
3579 if (s->state != SERVICE_DEAD)
3583 s->got_socket_fd = true;
3585 unit_ref_set(&s->accept_socket, UNIT(sock));
3587 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3590 static void service_reset_failed(Unit *u) {
3591 Service *s = SERVICE(u);
3595 if (s->state == SERVICE_FAILED)
3596 service_set_state(s, SERVICE_DEAD);
3598 s->result = SERVICE_SUCCESS;
3599 s->reload_result = SERVICE_SUCCESS;
3602 static bool service_need_daemon_reload(Unit *u) {
3603 Service *s = SERVICE(u);
3607 #ifdef HAVE_SYSV_COMPAT
3612 if (stat(s->sysv_path, &st) < 0)
3613 /* What, cannot access this anymore? */
3616 if (s->sysv_mtime > 0 &&
3617 timespec_load(&st.st_mtim) != s->sysv_mtime)
3625 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3626 Service *s = SERVICE(u);
3628 Set *pid_set = NULL;
3632 if (s->main_pid <= 0 && who == KILL_MAIN) {
3633 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3637 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3638 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3642 if (who == KILL_CONTROL || who == KILL_ALL)
3643 if (s->control_pid > 0)
3644 if (kill(s->control_pid, signo) < 0)
3647 if (who == KILL_MAIN || who == KILL_ALL)
3648 if (s->main_pid > 0)
3649 if (kill(s->main_pid, signo) < 0)
3652 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3655 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3658 /* Exclude the control/main pid from being killed via the cgroup */
3659 if (s->control_pid > 0)
3660 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3665 if (s->main_pid > 0)
3666 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3670 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set, NULL);
3672 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3683 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3684 [SERVICE_DEAD] = "dead",
3685 [SERVICE_START_PRE] = "start-pre",
3686 [SERVICE_START] = "start",
3687 [SERVICE_START_POST] = "start-post",
3688 [SERVICE_RUNNING] = "running",
3689 [SERVICE_EXITED] = "exited",
3690 [SERVICE_RELOAD] = "reload",
3691 [SERVICE_STOP] = "stop",
3692 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3693 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3694 [SERVICE_STOP_POST] = "stop-post",
3695 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3696 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3697 [SERVICE_FAILED] = "failed",
3698 [SERVICE_AUTO_RESTART] = "auto-restart",
3701 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3703 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3704 [SERVICE_RESTART_NO] = "no",
3705 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3706 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3707 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3708 [SERVICE_RESTART_ALWAYS] = "always"
3711 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3713 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3714 [SERVICE_SIMPLE] = "simple",
3715 [SERVICE_FORKING] = "forking",
3716 [SERVICE_ONESHOT] = "oneshot",
3717 [SERVICE_DBUS] = "dbus",
3718 [SERVICE_NOTIFY] = "notify",
3719 [SERVICE_IDLE] = "idle"
3722 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3724 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3725 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3726 [SERVICE_EXEC_START] = "ExecStart",
3727 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3728 [SERVICE_EXEC_RELOAD] = "ExecReload",
3729 [SERVICE_EXEC_STOP] = "ExecStop",
3730 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3733 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3735 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3736 [NOTIFY_NONE] = "none",
3737 [NOTIFY_MAIN] = "main",
3738 [NOTIFY_ALL] = "all"
3741 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3743 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3744 [SERVICE_SUCCESS] = "success",
3745 [SERVICE_FAILURE_RESOURCES] = "resources",
3746 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3747 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3748 [SERVICE_FAILURE_SIGNAL] = "signal",
3749 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3750 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3753 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3755 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3756 [SERVICE_START_LIMIT_NONE] = "none",
3757 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3758 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3759 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3761 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3763 const UnitVTable service_vtable = {
3764 .suffix = ".service",
3765 .object_size = sizeof(Service),
3770 .show_status = true,
3772 .init = service_init,
3773 .done = service_done,
3774 .load = service_load,
3776 .coldplug = service_coldplug,
3778 .dump = service_dump,
3780 .start = service_start,
3781 .stop = service_stop,
3782 .reload = service_reload,
3784 .can_reload = service_can_reload,
3786 .kill = service_kill,
3788 .serialize = service_serialize,
3789 .deserialize_item = service_deserialize_item,
3791 .active_state = service_active_state,
3792 .sub_state_to_string = service_sub_state_to_string,
3794 .check_gc = service_check_gc,
3795 .check_snapshot = service_check_snapshot,
3797 .sigchld_event = service_sigchld_event,
3798 .timer_event = service_timer_event,
3799 .fd_event = service_fd_event,
3801 .reset_failed = service_reset_failed,
3803 .need_daemon_reload = service_need_daemon_reload,
3805 .cgroup_notify_empty = service_cgroup_notify_event,
3806 .notify_message = service_notify_message,
3808 .bus_name_owner_change = service_bus_name_owner_change,
3809 .bus_query_pid_done = service_bus_query_pid_done,
3811 .bus_interface = "org.freedesktop.systemd1.Service",
3812 .bus_message_handler = bus_service_message_handler,
3813 .bus_invalidating_properties = bus_service_invalidating_properties,
3815 #ifdef HAVE_SYSV_COMPAT
3816 .enumerate = service_enumerate