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,
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 /* Any units that are bound to this service must also be
2212 * restarted. We use JOB_RESTART (instead of the more obvious
2213 * JOB_START) here so that those dependency jobs will be added
2215 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2219 log_debug("%s scheduled restart job.", UNIT(s)->id);
2223 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2224 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2226 dbus_error_free(&error);
2229 static void service_enter_reload(Service *s) {
2234 service_unwatch_control_pid(s);
2236 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2237 s->control_command_id = SERVICE_EXEC_RELOAD;
2239 if ((r = service_spawn(s,
2243 !s->permissions_start_only,
2244 !s->root_directory_start_only,
2247 &s->control_pid)) < 0)
2250 service_set_state(s, SERVICE_RELOAD);
2252 service_enter_running(s, SERVICE_SUCCESS);
2257 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2258 s->reload_result = SERVICE_FAILURE_RESOURCES;
2259 service_enter_running(s, SERVICE_SUCCESS);
2262 static void service_run_next_control(Service *s) {
2266 assert(s->control_command);
2267 assert(s->control_command->command_next);
2269 assert(s->control_command_id != SERVICE_EXEC_START);
2271 s->control_command = s->control_command->command_next;
2272 service_unwatch_control_pid(s);
2274 if ((r = service_spawn(s,
2278 !s->permissions_start_only,
2279 !s->root_directory_start_only,
2280 s->control_command_id == SERVICE_EXEC_START_PRE ||
2281 s->control_command_id == SERVICE_EXEC_STOP_POST,
2283 &s->control_pid)) < 0)
2289 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2291 if (s->state == SERVICE_START_PRE)
2292 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2293 else if (s->state == SERVICE_STOP)
2294 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2295 else if (s->state == SERVICE_STOP_POST)
2296 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2297 else if (s->state == SERVICE_RELOAD) {
2298 s->reload_result = SERVICE_FAILURE_RESOURCES;
2299 service_enter_running(s, SERVICE_SUCCESS);
2301 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2304 static void service_run_next_main(Service *s) {
2309 assert(s->main_command);
2310 assert(s->main_command->command_next);
2311 assert(s->type == SERVICE_ONESHOT);
2313 s->main_command = s->main_command->command_next;
2314 service_unwatch_main_pid(s);
2316 if ((r = service_spawn(s,
2323 s->notify_access != NOTIFY_NONE,
2327 service_set_main_pid(s, pid);
2332 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2333 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2336 static int service_start_limit_test(Service *s) {
2339 if (ratelimit_test(&s->start_limit))
2342 switch (s->start_limit_action) {
2344 case SERVICE_START_LIMIT_NONE:
2345 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2348 case SERVICE_START_LIMIT_REBOOT: {
2352 dbus_error_init(&error);
2354 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2356 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2358 log_error("Failed to reboot: %s.", bus_error(&error, r));
2359 dbus_error_free(&error);
2365 case SERVICE_START_LIMIT_REBOOT_FORCE:
2366 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2367 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2370 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2371 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2372 reboot(RB_AUTOBOOT);
2376 log_error("start limit action=%i", s->start_limit_action);
2377 assert_not_reached("Unknown StartLimitAction.");
2383 static int service_start(Unit *u) {
2384 Service *s = SERVICE(u);
2389 /* We cannot fulfill this request right now, try again later
2391 if (s->state == SERVICE_STOP ||
2392 s->state == SERVICE_STOP_SIGTERM ||
2393 s->state == SERVICE_STOP_SIGKILL ||
2394 s->state == SERVICE_STOP_POST ||
2395 s->state == SERVICE_FINAL_SIGTERM ||
2396 s->state == SERVICE_FINAL_SIGKILL)
2399 /* Already on it! */
2400 if (s->state == SERVICE_START_PRE ||
2401 s->state == SERVICE_START ||
2402 s->state == SERVICE_START_POST)
2405 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2407 /* Make sure we don't enter a busy loop of some kind. */
2408 r = service_start_limit_test(s);
2410 service_notify_sockets_dead(s, true);
2414 s->result = SERVICE_SUCCESS;
2415 s->reload_result = SERVICE_SUCCESS;
2416 s->main_pid_known = false;
2417 s->main_pid_alien = false;
2418 s->forbid_restart = false;
2420 service_enter_start_pre(s);
2424 static int service_stop(Unit *u) {
2425 Service *s = SERVICE(u);
2429 /* This is a user request, so don't do restarts on this
2431 s->forbid_restart = true;
2434 if (s->state == SERVICE_STOP ||
2435 s->state == SERVICE_STOP_SIGTERM ||
2436 s->state == SERVICE_STOP_SIGKILL ||
2437 s->state == SERVICE_STOP_POST ||
2438 s->state == SERVICE_FINAL_SIGTERM ||
2439 s->state == SERVICE_FINAL_SIGKILL)
2442 /* Don't allow a restart */
2443 if (s->state == SERVICE_AUTO_RESTART) {
2444 service_set_state(s, SERVICE_DEAD);
2448 /* If there's already something running we go directly into
2450 if (s->state == SERVICE_START_PRE ||
2451 s->state == SERVICE_START ||
2452 s->state == SERVICE_START_POST ||
2453 s->state == SERVICE_RELOAD) {
2454 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2458 assert(s->state == SERVICE_RUNNING ||
2459 s->state == SERVICE_EXITED);
2461 service_enter_stop(s, SERVICE_SUCCESS);
2465 static int service_reload(Unit *u) {
2466 Service *s = SERVICE(u);
2470 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2472 service_enter_reload(s);
2476 static bool service_can_reload(Unit *u) {
2477 Service *s = SERVICE(u);
2481 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2484 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2485 Service *s = SERVICE(u);
2491 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2492 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2493 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2495 if (s->control_pid > 0)
2496 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2498 if (s->main_pid_known && s->main_pid > 0)
2499 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2501 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2504 unit_serialize_item(u, f, "status-text", s->status_text);
2506 /* FIXME: There's a minor uncleanliness here: if there are
2507 * multiple commands attached here, we will start from the
2508 * first one again */
2509 if (s->control_command_id >= 0)
2510 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2512 if (s->socket_fd >= 0) {
2515 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2518 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2521 if (s->main_exec_status.pid > 0) {
2522 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2523 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2524 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2526 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2527 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2528 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2531 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2532 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2537 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2538 Service *s = SERVICE(u);
2545 if (streq(key, "state")) {
2548 if ((state = service_state_from_string(value)) < 0)
2549 log_debug("Failed to parse state value %s", value);
2551 s->deserialized_state = state;
2552 } else if (streq(key, "result")) {
2555 f = service_result_from_string(value);
2557 log_debug("Failed to parse result value %s", value);
2558 else if (f != SERVICE_SUCCESS)
2561 } else if (streq(key, "reload-result")) {
2564 f = service_result_from_string(value);
2566 log_debug("Failed to parse reload result value %s", value);
2567 else if (f != SERVICE_SUCCESS)
2568 s->reload_result = f;
2570 } else if (streq(key, "control-pid")) {
2573 if (parse_pid(value, &pid) < 0)
2574 log_debug("Failed to parse control-pid value %s", value);
2576 s->control_pid = pid;
2577 } else if (streq(key, "main-pid")) {
2580 if (parse_pid(value, &pid) < 0)
2581 log_debug("Failed to parse main-pid value %s", value);
2583 service_set_main_pid(s, (pid_t) pid);
2584 } else if (streq(key, "main-pid-known")) {
2587 if ((b = parse_boolean(value)) < 0)
2588 log_debug("Failed to parse main-pid-known value %s", value);
2590 s->main_pid_known = b;
2591 } else if (streq(key, "status-text")) {
2594 if ((t = strdup(value))) {
2595 free(s->status_text);
2599 } else if (streq(key, "control-command")) {
2600 ServiceExecCommand id;
2602 if ((id = service_exec_command_from_string(value)) < 0)
2603 log_debug("Failed to parse exec-command value %s", value);
2605 s->control_command_id = id;
2606 s->control_command = s->exec_command[id];
2608 } else if (streq(key, "socket-fd")) {
2611 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2612 log_debug("Failed to parse socket-fd value %s", value);
2615 if (s->socket_fd >= 0)
2616 close_nointr_nofail(s->socket_fd);
2617 s->socket_fd = fdset_remove(fds, fd);
2619 } else if (streq(key, "main-exec-status-pid")) {
2622 if (parse_pid(value, &pid) < 0)
2623 log_debug("Failed to parse main-exec-status-pid value %s", value);
2625 s->main_exec_status.pid = pid;
2626 } else if (streq(key, "main-exec-status-code")) {
2629 if (safe_atoi(value, &i) < 0)
2630 log_debug("Failed to parse main-exec-status-code value %s", value);
2632 s->main_exec_status.code = i;
2633 } else if (streq(key, "main-exec-status-status")) {
2636 if (safe_atoi(value, &i) < 0)
2637 log_debug("Failed to parse main-exec-status-status value %s", value);
2639 s->main_exec_status.status = i;
2640 } else if (streq(key, "main-exec-status-start"))
2641 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2642 else if (streq(key, "main-exec-status-exit"))
2643 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2644 else if (streq(key, "watchdog-timestamp"))
2645 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2647 log_debug("Unknown serialization key '%s'", key);
2652 static UnitActiveState service_active_state(Unit *u) {
2655 return state_translation_table[SERVICE(u)->state];
2658 static const char *service_sub_state_to_string(Unit *u) {
2661 return service_state_to_string(SERVICE(u)->state);
2664 static bool service_check_gc(Unit *u) {
2665 Service *s = SERVICE(u);
2669 /* Never clean up services that still have a process around,
2670 * even if the service is formally dead. */
2671 if (cgroup_good(s) > 0 ||
2672 main_pid_good(s) > 0 ||
2673 control_pid_good(s) > 0)
2676 #ifdef HAVE_SYSV_COMPAT
2684 static bool service_check_snapshot(Unit *u) {
2685 Service *s = SERVICE(u);
2689 return !s->got_socket_fd;
2692 static int service_retry_pid_file(Service *s) {
2695 assert(s->pid_file);
2696 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2698 r = service_load_pid_file(s, false);
2702 service_unwatch_pid_file(s);
2704 service_enter_running(s, SERVICE_SUCCESS);
2708 static int service_watch_pid_file(Service *s) {
2711 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2712 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2716 /* the pidfile might have appeared just before we set the watch */
2717 service_retry_pid_file(s);
2721 log_error("Failed to set a watch for %s's PID file %s: %s",
2722 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2723 service_unwatch_pid_file(s);
2727 static int service_demand_pid_file(Service *s) {
2730 assert(s->pid_file);
2731 assert(!s->pid_file_pathspec);
2733 ps = new0(PathSpec, 1);
2737 ps->path = strdup(s->pid_file);
2743 path_kill_slashes(ps->path);
2745 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2746 * keep their PID file open all the time. */
2747 ps->type = PATH_MODIFIED;
2748 ps->inotify_fd = -1;
2750 s->pid_file_pathspec = ps;
2752 return service_watch_pid_file(s);
2755 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2756 Service *s = SERVICE(u);
2760 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2761 assert(s->pid_file_pathspec);
2762 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2764 log_debug("inotify event for %s", u->id);
2766 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2769 if (service_retry_pid_file(s) == 0)
2772 if (service_watch_pid_file(s) < 0)
2777 service_unwatch_pid_file(s);
2778 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2781 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2782 Service *s = SERVICE(u);
2788 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2789 f = SERVICE_SUCCESS;
2790 else if (code == CLD_EXITED)
2791 f = SERVICE_FAILURE_EXIT_CODE;
2792 else if (code == CLD_KILLED)
2793 f = SERVICE_FAILURE_SIGNAL;
2794 else if (code == CLD_DUMPED)
2795 f = SERVICE_FAILURE_CORE_DUMP;
2797 assert_not_reached("Unknown code");
2799 if (s->main_pid == pid) {
2800 /* Forking services may occasionally move to a new PID.
2801 * As long as they update the PID file before exiting the old
2802 * PID, they're fine. */
2803 if (service_load_pid_file(s, false) == 0)
2807 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2809 /* If this is not a forking service than the main
2810 * process got started and hence we copy the exit
2811 * status so that it is recorded both as main and as
2812 * control process exit status */
2813 if (s->main_command) {
2814 s->main_command->exec_status = s->main_exec_status;
2816 if (s->main_command->ignore)
2817 f = SERVICE_SUCCESS;
2820 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2821 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2823 if (f != SERVICE_SUCCESS)
2826 if (s->main_command &&
2827 s->main_command->command_next &&
2828 f == SERVICE_SUCCESS) {
2830 /* There is another command to *
2831 * execute, so let's do that. */
2833 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2834 service_run_next_main(s);
2838 /* The service exited, so the service is officially
2840 s->main_command = NULL;
2844 case SERVICE_START_POST:
2845 case SERVICE_RELOAD:
2847 /* Need to wait until the operation is
2852 if (s->type == SERVICE_ONESHOT) {
2853 /* This was our main goal, so let's go on */
2854 if (f == SERVICE_SUCCESS)
2855 service_enter_start_post(s);
2857 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2860 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2865 case SERVICE_RUNNING:
2866 service_enter_running(s, f);
2869 case SERVICE_STOP_SIGTERM:
2870 case SERVICE_STOP_SIGKILL:
2872 if (!control_pid_good(s))
2873 service_enter_stop_post(s, f);
2875 /* If there is still a control process, wait for that first */
2879 assert_not_reached("Uh, main process died at wrong time.");
2883 } else if (s->control_pid == pid) {
2887 if (s->control_command) {
2888 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2890 if (s->control_command->ignore)
2891 f = SERVICE_SUCCESS;
2894 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2895 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2897 if (f != SERVICE_SUCCESS)
2900 if (s->control_command &&
2901 s->control_command->command_next &&
2902 f == SERVICE_SUCCESS) {
2904 /* There is another command to *
2905 * execute, so let's do that. */
2907 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2908 service_run_next_control(s);
2911 /* No further commands for this step, so let's
2912 * figure out what to do next */
2914 s->control_command = NULL;
2915 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2917 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
2921 case SERVICE_START_PRE:
2922 if (f == SERVICE_SUCCESS)
2923 service_enter_start(s);
2925 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2929 assert(s->type == SERVICE_FORKING);
2931 if (f != SERVICE_SUCCESS) {
2932 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2937 bool has_start_post;
2940 /* Let's try to load the pid file here if we can.
2941 * The PID file might actually be created by a START_POST
2942 * script. In that case don't worry if the loading fails. */
2944 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
2945 r = service_load_pid_file(s, !has_start_post);
2946 if (!has_start_post && r < 0) {
2947 r = service_demand_pid_file(s);
2948 if (r < 0 || !cgroup_good(s))
2949 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2953 service_search_main_pid(s);
2955 service_enter_start_post(s);
2958 case SERVICE_START_POST:
2959 if (f != SERVICE_SUCCESS) {
2960 service_enter_stop(s, f);
2967 r = service_load_pid_file(s, true);
2969 r = service_demand_pid_file(s);
2970 if (r < 0 || !cgroup_good(s))
2971 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2975 service_search_main_pid(s);
2977 service_enter_running(s, SERVICE_SUCCESS);
2980 case SERVICE_RELOAD:
2981 if (f == SERVICE_SUCCESS) {
2982 service_load_pid_file(s, true);
2983 service_search_main_pid(s);
2986 s->reload_result = f;
2987 service_enter_running(s, SERVICE_SUCCESS);
2991 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
2994 case SERVICE_STOP_SIGTERM:
2995 case SERVICE_STOP_SIGKILL:
2996 if (main_pid_good(s) <= 0)
2997 service_enter_stop_post(s, f);
2999 /* If there is still a service
3000 * process around, wait until
3001 * that one quit, too */
3004 case SERVICE_STOP_POST:
3005 case SERVICE_FINAL_SIGTERM:
3006 case SERVICE_FINAL_SIGKILL:
3007 service_enter_dead(s, f, true);
3011 assert_not_reached("Uh, control process died at wrong time.");
3016 /* Notify clients about changed exit status */
3017 unit_add_to_dbus_queue(u);
3020 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3021 Service *s = SERVICE(u);
3024 assert(elapsed == 1);
3026 if (w == &s->watchdog_watch) {
3027 service_handle_watchdog(s);
3031 assert(w == &s->timer_watch);
3035 case SERVICE_START_PRE:
3037 log_warning("%s operation timed out. Terminating.", u->id);
3038 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3041 case SERVICE_START_POST:
3042 log_warning("%s operation timed out. Stopping.", u->id);
3043 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3046 case SERVICE_RELOAD:
3047 log_warning("%s operation timed out. Stopping.", u->id);
3048 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3049 service_enter_running(s, SERVICE_SUCCESS);
3053 log_warning("%s stopping timed out. Terminating.", u->id);
3054 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3057 case SERVICE_STOP_SIGTERM:
3058 if (s->exec_context.send_sigkill) {
3059 log_warning("%s stopping timed out. Killing.", u->id);
3060 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3062 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3063 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3068 case SERVICE_STOP_SIGKILL:
3069 /* Uh, we sent a SIGKILL and it is still not gone?
3070 * Must be something we cannot kill, so let's just be
3071 * weirded out and continue */
3073 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3074 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3077 case SERVICE_STOP_POST:
3078 log_warning("%s stopping timed out (2). Terminating.", u->id);
3079 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3082 case SERVICE_FINAL_SIGTERM:
3083 if (s->exec_context.send_sigkill) {
3084 log_warning("%s stopping timed out (2). Killing.", u->id);
3085 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3087 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3088 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3093 case SERVICE_FINAL_SIGKILL:
3094 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3095 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3098 case SERVICE_AUTO_RESTART:
3099 log_info("%s holdoff time over, scheduling restart.", u->id);
3100 service_enter_restart(s);
3104 assert_not_reached("Timeout at wrong time.");
3108 static void service_cgroup_notify_event(Unit *u) {
3109 Service *s = SERVICE(u);
3113 log_debug("%s: cgroup is empty", u->id);
3117 /* Waiting for SIGCHLD is usually more interesting,
3118 * because it includes return codes/signals. Which is
3119 * why we ignore the cgroup events for most cases,
3120 * except when we don't know pid which to expect the
3124 case SERVICE_START_POST:
3125 /* If we were hoping for the daemon to write its PID file,
3126 * we can give up now. */
3127 if (s->pid_file_pathspec) {
3128 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3129 service_unwatch_pid_file(s);
3130 if (s->state == SERVICE_START)
3131 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3133 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3137 case SERVICE_RUNNING:
3138 /* service_enter_running() will figure out what to do */
3139 service_enter_running(s, SERVICE_SUCCESS);
3142 case SERVICE_STOP_SIGTERM:
3143 case SERVICE_STOP_SIGKILL:
3145 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3146 service_enter_stop_post(s, SERVICE_SUCCESS);
3150 case SERVICE_FINAL_SIGTERM:
3151 case SERVICE_FINAL_SIGKILL:
3152 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3153 service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
3162 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3163 Service *s = SERVICE(u);
3168 if (s->notify_access == NOTIFY_NONE) {
3169 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3170 u->id, (unsigned long) pid);
3174 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3175 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3176 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3180 log_debug("%s: Got message", u->id);
3182 /* Interpret MAINPID= */
3183 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3184 (s->state == SERVICE_START ||
3185 s->state == SERVICE_START_POST ||
3186 s->state == SERVICE_RUNNING ||
3187 s->state == SERVICE_RELOAD)) {
3189 if (parse_pid(e + 8, &pid) < 0)
3190 log_warning("Failed to parse notification message %s", e);
3192 log_debug("%s: got %s", u->id, e);
3193 service_set_main_pid(s, pid);
3197 /* Interpret READY= */
3198 if (s->type == SERVICE_NOTIFY &&
3199 s->state == SERVICE_START &&
3200 strv_find(tags, "READY=1")) {
3201 log_debug("%s: got READY=1", u->id);
3203 service_enter_start_post(s);
3206 /* Interpret STATUS= */
3207 e = strv_find_prefix(tags, "STATUS=");
3213 if (!utf8_is_valid(e+7)) {
3214 log_warning("Status message in notification is not UTF-8 clean.");
3220 log_error("Failed to allocate string.");
3224 log_debug("%s: got %s", u->id, e);
3226 free(s->status_text);
3229 free(s->status_text);
3230 s->status_text = NULL;
3234 if (strv_find(tags, "WATCHDOG=1")) {
3235 log_debug("%s: got WATCHDOG=1", u->id);
3236 service_reset_watchdog(s);
3239 /* Notify clients about changed status or main pid */
3240 unit_add_to_dbus_queue(u);
3243 #ifdef HAVE_SYSV_COMPAT
3246 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3250 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3251 r = errno == ENOENT ? 0 : -errno;
3256 char l[LINE_MAX], *t;
3257 char **parsed = NULL;
3259 if (!fgets(l, sizeof(l), f)) {
3264 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3269 if (*t != '$' && *t != '<')
3272 parsed = strv_split(t,WHITESPACE);
3273 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3274 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3277 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3279 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3281 char *dep = NULL, *name, **j;
3283 STRV_FOREACH (j, parsed+1) {
3292 if (sysv_translate_facility(name, NULL, &dep) < 0)
3295 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3310 static int service_enumerate(Manager *m) {
3314 char *path = NULL, *fpath = NULL, *name = NULL;
3315 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3322 if (m->running_as != MANAGER_SYSTEM)
3325 zero(runlevel_services);
3327 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3328 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3332 path = join(*p, "/", rcnd_table[i].path, NULL);
3341 if (!(d = opendir(path))) {
3342 if (errno != ENOENT)
3343 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3348 while ((de = readdir(d))) {
3351 if (ignore_file(de->d_name))
3354 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3357 if (strlen(de->d_name) < 4)
3360 a = undecchar(de->d_name[1]);
3361 b = undecchar(de->d_name[2]);
3367 fpath = join(path, "/", de->d_name, NULL);
3373 if (access(fpath, X_OK) < 0) {
3375 if (errno != ENOENT)
3376 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3382 if (!(name = sysv_translate_name(de->d_name + 3))) {
3387 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3388 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3392 if (de->d_name[0] == 'S') {
3394 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3395 SERVICE(service)->sysv_start_priority_from_rcnd =
3396 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3398 SERVICE(service)->sysv_enabled = true;
3401 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3404 if ((r = set_put(runlevel_services[i], service)) < 0)
3407 } else if (de->d_name[0] == 'K' &&
3408 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3409 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3411 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3414 if ((r = set_put(shutdown_services, service)) < 0)
3420 /* Now we loaded all stubs and are aware of the lowest
3421 start-up priority for all services, not let's actually load
3422 the services, this will also tell us which services are
3423 actually native now */
3424 manager_dispatch_load_queue(m);
3426 /* If this is a native service, rely on native ways to pull in
3427 * a service, don't pull it in via sysv rcN.d links. */
3428 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3429 SET_FOREACH(service, runlevel_services[i], j) {
3430 service = unit_follow_merge(service);
3432 if (service->fragment_path)
3435 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3439 /* We honour K links only for halt/reboot. For the normal
3440 * runlevels we assume the stop jobs will be implicitly added
3441 * by the core logic. Also, we don't really distinguish here
3442 * between the runlevels 0 and 6 and just add them to the
3443 * special shutdown target. On SUSE the boot.d/ runlevel is
3444 * also used for shutdown, so we add links for that too to the
3445 * shutdown target.*/
3446 SET_FOREACH(service, shutdown_services, j) {
3447 service = unit_follow_merge(service);
3449 if (service->fragment_path)
3452 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3459 sysv_facility_in_insserv_conf (m);
3467 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3468 set_free(runlevel_services[i]);
3469 set_free(shutdown_services);
3478 static void service_bus_name_owner_change(
3481 const char *old_owner,
3482 const char *new_owner) {
3484 Service *s = SERVICE(u);
3489 assert(streq(s->bus_name, name));
3490 assert(old_owner || new_owner);
3492 if (old_owner && new_owner)
3493 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3495 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3497 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3499 s->bus_name_good = !!new_owner;
3501 if (s->type == SERVICE_DBUS) {
3503 /* service_enter_running() will figure out what to
3505 if (s->state == SERVICE_RUNNING)
3506 service_enter_running(s, SERVICE_SUCCESS);
3507 else if (s->state == SERVICE_START && new_owner)
3508 service_enter_start_post(s);
3510 } else if (new_owner &&
3512 (s->state == SERVICE_START ||
3513 s->state == SERVICE_START_POST ||
3514 s->state == SERVICE_RUNNING ||
3515 s->state == SERVICE_RELOAD)) {
3517 /* Try to acquire PID from bus service */
3518 log_debug("Trying to acquire PID from D-Bus name...");
3520 bus_query_pid(u->manager, name);
3524 static void service_bus_query_pid_done(
3529 Service *s = SERVICE(u);
3534 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3536 if (s->main_pid <= 0 &&
3537 (s->state == SERVICE_START ||
3538 s->state == SERVICE_START_POST ||
3539 s->state == SERVICE_RUNNING ||
3540 s->state == SERVICE_RELOAD))
3541 service_set_main_pid(s, pid);
3544 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3549 /* This is called by the socket code when instantiating a new
3550 * service for a stream socket and the socket needs to be
3553 if (UNIT(s)->load_state != UNIT_LOADED)
3556 if (s->socket_fd >= 0)
3559 if (s->state != SERVICE_DEAD)
3563 s->got_socket_fd = true;
3565 unit_ref_set(&s->accept_socket, UNIT(sock));
3567 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3570 static void service_reset_failed(Unit *u) {
3571 Service *s = SERVICE(u);
3575 if (s->state == SERVICE_FAILED)
3576 service_set_state(s, SERVICE_DEAD);
3578 s->result = SERVICE_SUCCESS;
3579 s->reload_result = SERVICE_SUCCESS;
3582 static bool service_need_daemon_reload(Unit *u) {
3583 Service *s = SERVICE(u);
3587 #ifdef HAVE_SYSV_COMPAT
3592 if (stat(s->sysv_path, &st) < 0)
3593 /* What, cannot access this anymore? */
3596 if (s->sysv_mtime > 0 &&
3597 timespec_load(&st.st_mtim) != s->sysv_mtime)
3605 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3606 Service *s = SERVICE(u);
3608 Set *pid_set = NULL;
3612 if (s->main_pid <= 0 && who == KILL_MAIN) {
3613 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3617 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3618 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3622 if (who == KILL_CONTROL || who == KILL_ALL)
3623 if (s->control_pid > 0)
3624 if (kill(s->control_pid, signo) < 0)
3627 if (who == KILL_MAIN || who == KILL_ALL)
3628 if (s->main_pid > 0)
3629 if (kill(s->main_pid, signo) < 0)
3632 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3635 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3638 /* Exclude the control/main pid from being killed via the cgroup */
3639 if (s->control_pid > 0)
3640 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3645 if (s->main_pid > 0)
3646 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3651 if ((q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
3652 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3663 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3664 [SERVICE_DEAD] = "dead",
3665 [SERVICE_START_PRE] = "start-pre",
3666 [SERVICE_START] = "start",
3667 [SERVICE_START_POST] = "start-post",
3668 [SERVICE_RUNNING] = "running",
3669 [SERVICE_EXITED] = "exited",
3670 [SERVICE_RELOAD] = "reload",
3671 [SERVICE_STOP] = "stop",
3672 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3673 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3674 [SERVICE_STOP_POST] = "stop-post",
3675 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3676 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3677 [SERVICE_FAILED] = "failed",
3678 [SERVICE_AUTO_RESTART] = "auto-restart",
3681 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3683 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3684 [SERVICE_RESTART_NO] = "no",
3685 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3686 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3687 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3688 [SERVICE_RESTART_ALWAYS] = "always"
3691 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3693 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3694 [SERVICE_SIMPLE] = "simple",
3695 [SERVICE_FORKING] = "forking",
3696 [SERVICE_ONESHOT] = "oneshot",
3697 [SERVICE_DBUS] = "dbus",
3698 [SERVICE_NOTIFY] = "notify"
3701 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3703 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3704 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3705 [SERVICE_EXEC_START] = "ExecStart",
3706 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3707 [SERVICE_EXEC_RELOAD] = "ExecReload",
3708 [SERVICE_EXEC_STOP] = "ExecStop",
3709 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3712 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3714 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3715 [NOTIFY_NONE] = "none",
3716 [NOTIFY_MAIN] = "main",
3717 [NOTIFY_ALL] = "all"
3720 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3722 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3723 [SERVICE_SUCCESS] = "success",
3724 [SERVICE_FAILURE_RESOURCES] = "resources",
3725 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3726 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3727 [SERVICE_FAILURE_SIGNAL] = "signal",
3728 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3729 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3732 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3734 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3735 [SERVICE_START_LIMIT_NONE] = "none",
3736 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3737 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3738 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3740 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3742 const UnitVTable service_vtable = {
3743 .suffix = ".service",
3744 .object_size = sizeof(Service),
3749 .show_status = true,
3751 .init = service_init,
3752 .done = service_done,
3753 .load = service_load,
3755 .coldplug = service_coldplug,
3757 .dump = service_dump,
3759 .start = service_start,
3760 .stop = service_stop,
3761 .reload = service_reload,
3763 .can_reload = service_can_reload,
3765 .kill = service_kill,
3767 .serialize = service_serialize,
3768 .deserialize_item = service_deserialize_item,
3770 .active_state = service_active_state,
3771 .sub_state_to_string = service_sub_state_to_string,
3773 .check_gc = service_check_gc,
3774 .check_snapshot = service_check_snapshot,
3776 .sigchld_event = service_sigchld_event,
3777 .timer_event = service_timer_event,
3778 .fd_event = service_fd_event,
3780 .reset_failed = service_reset_failed,
3782 .need_daemon_reload = service_need_daemon_reload,
3784 .cgroup_notify_empty = service_cgroup_notify_event,
3785 .notify_message = service_notify_message,
3787 .bus_name_owner_change = service_bus_name_owner_change,
3788 .bus_query_pid_done = service_bus_query_pid_done,
3790 .bus_interface = "org.freedesktop.systemd1.Service",
3791 .bus_message_handler = bus_service_message_handler,
3792 .bus_invalidating_properties = bus_service_invalidating_properties,
3794 #ifdef HAVE_SYSV_COMPAT
3795 .enumerate = service_enumerate