1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/reboot.h>
31 #include "load-fragment.h"
32 #include "load-dropin.h"
35 #include "unit-name.h"
36 #include "dbus-service.h"
38 #include "bus-errors.h"
39 #include "exit-status.h"
43 #ifdef HAVE_SYSV_COMPAT
45 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
47 typedef enum RunlevelType {
56 const RunlevelType type;
58 /* Standard SysV runlevels for start-up */
59 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
60 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
61 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
62 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
63 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
66 /* SUSE style boot.d */
67 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
70 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
71 /* Debian style rcS.d */
72 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
75 /* Standard SysV runlevels for shutdown */
76 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
77 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
79 /* Note that the order here matters, as we read the
80 directories in this order, and we want to make sure that
81 sysv_start_priority is known when we first load the
82 unit. And that value we only know from S links. Hence
83 UP/SYSINIT must be read before DOWN */
86 #define RUNLEVELS_UP "12345"
87 /* #define RUNLEVELS_DOWN "06" */
88 #define RUNLEVELS_BOOT "bBsS"
91 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
92 [SERVICE_DEAD] = UNIT_INACTIVE,
93 [SERVICE_START_PRE] = UNIT_ACTIVATING,
94 [SERVICE_START] = UNIT_ACTIVATING,
95 [SERVICE_START_POST] = UNIT_ACTIVATING,
96 [SERVICE_RUNNING] = UNIT_ACTIVE,
97 [SERVICE_EXITED] = UNIT_ACTIVE,
98 [SERVICE_RELOAD] = UNIT_RELOADING,
99 [SERVICE_STOP] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
101 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
102 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
103 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
104 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
105 [SERVICE_FAILED] = UNIT_FAILED,
106 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
109 static void service_init(Unit *u) {
110 Service *s = SERVICE(u);
113 assert(u->load_state == UNIT_STUB);
115 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
116 s->restart_usec = DEFAULT_RESTART_USEC;
118 s->watchdog_watch.type = WATCH_INVALID;
120 s->timer_watch.type = WATCH_INVALID;
121 #ifdef HAVE_SYSV_COMPAT
122 s->sysv_start_priority = -1;
123 s->sysv_start_priority_from_rcnd = -1;
126 s->guess_main_pid = true;
128 exec_context_init(&s->exec_context);
130 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
132 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
135 static void service_unwatch_control_pid(Service *s) {
138 if (s->control_pid <= 0)
141 unit_unwatch_pid(UNIT(s), s->control_pid);
145 static void service_unwatch_main_pid(Service *s) {
148 if (s->main_pid <= 0)
151 unit_unwatch_pid(UNIT(s), s->main_pid);
155 static void service_unwatch_pid_file(Service *s) {
156 if (!s->pid_file_pathspec)
159 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
160 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
161 path_spec_done(s->pid_file_pathspec);
162 free(s->pid_file_pathspec);
163 s->pid_file_pathspec = NULL;
166 static int service_set_main_pid(Service *s, pid_t pid) {
178 s->main_pid_known = true;
180 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
181 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
182 UNIT(s)->id, (unsigned long) pid);
184 s->main_pid_alien = true;
186 s->main_pid_alien = false;
188 exec_status_start(&s->main_exec_status, pid);
193 static void service_close_socket_fd(Service *s) {
196 if (s->socket_fd < 0)
199 close_nointr_nofail(s->socket_fd);
203 static void service_connection_unref(Service *s) {
206 if (!UNIT_DEREF(s->accept_socket))
209 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
210 unit_ref_unset(&s->accept_socket);
213 static void service_stop_watchdog(Service *s) {
216 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
217 s->watchdog_timestamp.realtime = 0;
218 s->watchdog_timestamp.monotonic = 0;
221 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
223 static void service_handle_watchdog(Service *s) {
229 if (s->watchdog_usec == 0)
232 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
233 if (offset >= s->watchdog_usec) {
234 log_error("%s watchdog timeout!", UNIT(s)->id);
235 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
239 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
241 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
244 static void service_reset_watchdog(Service *s) {
247 dual_timestamp_get(&s->watchdog_timestamp);
248 service_handle_watchdog(s);
251 static void service_done(Unit *u) {
252 Service *s = SERVICE(u);
259 #ifdef HAVE_SYSV_COMPAT
263 free(s->sysv_runlevels);
264 s->sysv_runlevels = NULL;
267 free(s->status_text);
268 s->status_text = NULL;
270 exec_context_done(&s->exec_context);
271 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
272 s->control_command = NULL;
273 s->main_command = NULL;
275 /* This will leak a process, but at least no memory or any of
277 service_unwatch_main_pid(s);
278 service_unwatch_control_pid(s);
279 service_unwatch_pid_file(s);
282 unit_unwatch_bus_name(u, s->bus_name);
287 service_close_socket_fd(s);
288 service_connection_unref(s);
290 unit_ref_unset(&s->accept_socket);
292 service_stop_watchdog(s);
294 unit_unwatch_timer(u, &s->timer_watch);
297 #ifdef HAVE_SYSV_COMPAT
298 static char *sysv_translate_name(const char *name) {
301 if (!(r = new(char, strlen(name) + sizeof(".service"))))
304 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
305 if (endswith(name, ".sh"))
306 /* Drop Debian-style .sh suffix */
307 strcpy(stpcpy(r, name) - 3, ".service");
310 if (startswith(name, "boot."))
311 /* Drop SuSE-style boot. prefix */
312 strcpy(stpcpy(r, name + 5), ".service");
314 #ifdef TARGET_FRUGALWARE
315 if (startswith(name, "rc."))
316 /* Drop Frugalware-style rc. prefix */
317 strcpy(stpcpy(r, name + 3), ".service");
320 /* Normal init scripts */
321 strcpy(stpcpy(r, name), ".service");
326 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
328 /* We silently ignore the $ prefix here. According to the LSB
329 * spec it simply indicates whether something is a
330 * standardized name or a distribution-specific one. Since we
331 * just follow what already exists and do not introduce new
332 * uses or names we don't care who introduced a new name. */
334 static const char * const table[] = {
335 /* LSB defined facilities */
336 "local_fs", SPECIAL_LOCAL_FS_TARGET,
337 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
339 /* Due to unfortunate name selection in Mandriva,
340 * $network is provided by network-up which is ordered
341 * after network which actually starts interfaces.
342 * To break the loop, just ignore it */
343 "network", SPECIAL_NETWORK_TARGET,
345 "named", SPECIAL_NSS_LOOKUP_TARGET,
346 "portmap", SPECIAL_RPCBIND_TARGET,
347 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
348 "syslog", SPECIAL_SYSLOG_TARGET,
349 "time", SPECIAL_TIME_SYNC_TARGET,
351 /* common extensions */
352 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
353 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
356 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
357 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
361 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
362 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
363 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
367 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
378 n = *name == '$' ? name + 1 : name;
380 for (i = 0; i < ELEMENTSOF(table); i += 2) {
382 if (!streq(table[i], n))
388 if (!(r = strdup(table[i+1])))
394 /* If we don't know this name, fallback heuristics to figure
395 * out whether something is a target or a service alias. */
398 if (!unit_prefix_is_valid(n))
401 /* Facilities starting with $ are most likely targets */
402 r = unit_name_build(n, NULL, ".target");
403 } else if (filename && streq(name, filename))
404 /* Names equaling the file name of the services are redundant */
407 /* Everything else we assume to be normal service names */
408 r = sysv_translate_name(n);
419 static int sysv_fix_order(Service *s) {
425 if (s->sysv_start_priority < 0)
428 /* For each pair of services where at least one lacks a LSB
429 * header, we use the start priority value to order things. */
431 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
434 bool special_s, special_t;
441 if (UNIT(t)->load_state != UNIT_LOADED)
444 if (t->sysv_start_priority < 0)
447 /* If both units have modern headers we don't care
448 * about the priorities */
449 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
450 (UNIT(t)->fragment_path || t->sysv_has_lsb))
453 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
454 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
456 if (special_t && !special_s)
458 else if (special_s && !special_t)
460 else if (t->sysv_start_priority < s->sysv_start_priority)
462 else if (t->sysv_start_priority > s->sysv_start_priority)
467 /* FIXME: Maybe we should compare the name here lexicographically? */
469 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
476 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
479 if (!(c = new0(ExecCommand, 1)))
482 if (!(c->path = strdup(path))) {
487 if (!(c->argv = strv_new(path, arg1, NULL))) {
496 static int sysv_exec_commands(Service *s) {
500 assert(s->sysv_path);
502 if (!(c = exec_command_new(s->sysv_path, "start")))
504 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
506 if (!(c = exec_command_new(s->sysv_path, "stop")))
508 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
510 if (!(c = exec_command_new(s->sysv_path, "reload")))
512 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
517 static int service_load_sysv_path(Service *s, const char *path) {
528 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
536 if (!(f = fopen(path, "re"))) {
537 r = errno == ENOENT ? 0 : -errno;
542 if (fstat(fileno(f), &st) < 0) {
548 if (!(s->sysv_path = strdup(path))) {
553 s->sysv_mtime = timespec_load(&st.st_mtim);
555 if (null_or_empty(&st)) {
556 u->load_state = UNIT_MASKED;
562 char l[LINE_MAX], *t;
564 if (!fgets(l, sizeof(l), f)) {
569 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
579 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
581 s->sysv_has_lsb = true;
585 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
591 t += strspn(t, WHITESPACE);
593 if (state == NORMAL) {
595 /* Try to parse Red Hat style chkconfig headers */
597 if (startswith_no_case(t, "chkconfig:")) {
599 char runlevels[16], *k;
603 if (sscanf(t+10, "%15s %i %*i",
605 &start_priority) != 2) {
607 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
611 /* A start priority gathered from the
612 * symlink farms is preferred over the
613 * data from the LSB header. */
614 if (start_priority < 0 || start_priority > 99)
615 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
617 s->sysv_start_priority = start_priority;
619 char_array_0(runlevels);
620 k = delete_chars(runlevels, WHITESPACE "-");
625 if (!(d = strdup(k))) {
630 free(s->sysv_runlevels);
631 s->sysv_runlevels = d;
634 } else if (startswith_no_case(t, "description:")) {
636 size_t k = strlen(t);
640 if (t[k-1] == '\\') {
645 if ((j = strstrip(t+12)) && *j) {
646 if (!(d = strdup(j))) {
653 free(chkconfig_description);
654 chkconfig_description = d;
656 } else if (startswith_no_case(t, "pidfile:")) {
663 if (!path_is_absolute(fn)) {
664 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
668 if (!(fn = strdup(fn))) {
677 } else if (state == DESCRIPTION) {
679 /* Try to parse Red Hat style description
682 size_t k = strlen(t);
690 if ((j = strstrip(t)) && *j) {
693 if (chkconfig_description)
694 d = join(chkconfig_description, " ", j, NULL);
703 free(chkconfig_description);
704 chkconfig_description = d;
707 } else if (state == LSB || state == LSB_DESCRIPTION) {
709 if (startswith_no_case(t, "Provides:")) {
715 FOREACH_WORD_QUOTED(w, z, t+9, i) {
718 if (!(n = strndup(w, z))) {
723 r = sysv_translate_facility(n, file_name_from_path(path), &m);
732 if (unit_name_to_type(m) == UNIT_SERVICE)
733 r = unit_add_name(u, m);
740 * indication that the
742 * now available. This
745 * targets do NOT pull
748 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
751 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
756 } else if (startswith_no_case(t, "Required-Start:") ||
757 startswith_no_case(t, "Should-Start:") ||
758 startswith_no_case(t, "X-Start-Before:") ||
759 startswith_no_case(t, "X-Start-After:")) {
765 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
768 if (!(n = strndup(w, z))) {
773 r = sysv_translate_facility(n, file_name_from_path(path), &m);
776 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
786 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
789 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
793 } else if (startswith_no_case(t, "Default-Start:")) {
798 k = delete_chars(t+14, WHITESPACE "-");
801 if (!(d = strdup(k))) {
806 free(s->sysv_runlevels);
807 s->sysv_runlevels = d;
810 } else if (startswith_no_case(t, "Description:")) {
813 state = LSB_DESCRIPTION;
815 if ((j = strstrip(t+12)) && *j) {
816 if (!(d = strdup(j))) {
823 free(long_description);
824 long_description = d;
826 } else if (startswith_no_case(t, "Short-Description:")) {
831 if ((j = strstrip(t+18)) && *j) {
832 if (!(d = strdup(j))) {
839 free(short_description);
840 short_description = d;
842 } else if (state == LSB_DESCRIPTION) {
844 if (startswith(l, "#\t") || startswith(l, "# ")) {
847 if ((j = strstrip(t)) && *j) {
850 if (long_description)
851 d = join(long_description, " ", t, NULL);
860 free(long_description);
861 long_description = d;
870 if ((r = sysv_exec_commands(s)) < 0)
872 if (s->sysv_runlevels &&
873 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
874 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
875 /* Service has both boot and "up" runlevels
876 configured. Kill the "up" ones. */
877 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
880 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
881 /* If there a runlevels configured for this service
882 * but none of the standard ones, then we assume this
883 * is some special kind of service (which might be
884 * needed for early boot) and don't create any links
887 UNIT(s)->default_dependencies = false;
889 /* Don't timeout special services during boot (like fsck) */
892 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
894 /* Special setting for all SysV services */
895 s->type = SERVICE_FORKING;
896 s->remain_after_exit = !s->pid_file;
897 s->guess_main_pid = false;
898 s->restart = SERVICE_RESTART_NO;
899 s->exec_context.ignore_sigpipe = false;
901 if (UNIT(s)->manager->sysv_console)
902 s->exec_context.std_output = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
904 s->exec_context.kill_mode = KILL_PROCESS;
906 /* We use the long description only if
907 * no short description is set. */
909 if (short_description)
910 description = short_description;
911 else if (chkconfig_description)
912 description = chkconfig_description;
913 else if (long_description)
914 description = long_description;
921 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
929 /* The priority that has been set in /etc/rcN.d/ hierarchies
930 * takes precedence over what is stored as default in the LSB
932 if (s->sysv_start_priority_from_rcnd >= 0)
933 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
935 u->load_state = UNIT_LOADED;
943 free(short_description);
944 free(long_description);
945 free(chkconfig_description);
950 static int service_load_sysv_name(Service *s, const char *name) {
956 /* For SysV services we strip the boot.*, rc.* and *.sh
957 * prefixes/suffixes. */
958 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
959 if (endswith(name, ".sh.service"))
964 if (startswith(name, "boot."))
968 #ifdef TARGET_FRUGALWARE
969 if (startswith(name, "rc."))
973 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
977 path = join(*p, "/", name, NULL);
981 assert(endswith(path, ".service"));
982 path[strlen(path)-8] = 0;
984 r = service_load_sysv_path(s, path);
986 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
987 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
988 /* Try Debian style *.sh source'able init scripts */
990 r = service_load_sysv_path(s, path);
996 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
997 /* Try SUSE style boot.* init scripts */
999 path = join(*p, "/boot.", name, NULL);
1003 /* Drop .service suffix */
1004 path[strlen(path)-8] = 0;
1005 r = service_load_sysv_path(s, path);
1010 #ifdef TARGET_FRUGALWARE
1011 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1012 /* Try Frugalware style rc.* init scripts */
1014 path = join(*p, "/rc.", name, NULL);
1018 /* Drop .service suffix */
1019 path[strlen(path)-8] = 0;
1020 r = service_load_sysv_path(s, path);
1028 if ((UNIT(s)->load_state != UNIT_STUB))
1035 static int service_load_sysv(Service *s) {
1042 /* Load service data from SysV init scripts, preferably with
1043 * LSB headers ... */
1045 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1048 if ((t = UNIT(s)->id))
1049 if ((r = service_load_sysv_name(s, t)) < 0)
1052 if (UNIT(s)->load_state == UNIT_STUB)
1053 SET_FOREACH(t, UNIT(s)->names, i) {
1054 if (t == UNIT(s)->id)
1057 if ((r = service_load_sysv_name(s, t)) < 0)
1060 if (UNIT(s)->load_state != UNIT_STUB)
1068 static int fsck_fix_order(Service *s) {
1074 if (s->fsck_passno <= 0)
1077 /* For each pair of services where both have an fsck priority
1078 * we order things based on it. */
1080 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1089 if (UNIT(t)->load_state != UNIT_LOADED)
1092 if (t->fsck_passno <= 0)
1095 if (t->fsck_passno < s->fsck_passno)
1097 else if (t->fsck_passno > s->fsck_passno)
1102 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1109 static int service_verify(Service *s) {
1112 if (UNIT(s)->load_state != UNIT_LOADED)
1115 if (!s->exec_command[SERVICE_EXEC_START]) {
1116 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1120 if (s->type != SERVICE_ONESHOT &&
1121 s->exec_command[SERVICE_EXEC_START]->command_next) {
1122 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1126 if (s->type == SERVICE_ONESHOT &&
1127 s->exec_command[SERVICE_EXEC_RELOAD]) {
1128 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1132 if (s->type == SERVICE_DBUS && !s->bus_name) {
1133 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1137 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1138 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1145 static int service_add_default_dependencies(Service *s) {
1150 /* Add a number of automatic dependencies useful for the
1151 * majority of services. */
1153 /* First, pull in base system */
1154 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
1156 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1159 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
1161 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1165 /* Second, activate normal shutdown */
1166 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1169 static void service_fix_output(Service *s) {
1172 /* If nothing has been explicitly configured, patch default
1173 * output in. If input is socket/tty we avoid this however,
1174 * since in that case we want output to default to the same
1175 * place as we read input from. */
1177 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1178 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1179 s->exec_context.std_input == EXEC_INPUT_NULL)
1180 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1182 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1183 s->exec_context.std_input == EXEC_INPUT_NULL)
1184 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1187 static int service_load(Unit *u) {
1189 Service *s = SERVICE(u);
1193 /* Load a .service file */
1194 if ((r = unit_load_fragment(u)) < 0)
1197 #ifdef HAVE_SYSV_COMPAT
1198 /* Load a classic init script as a fallback, if we couldn't find anything */
1199 if (u->load_state == UNIT_STUB)
1200 if ((r = service_load_sysv(s)) < 0)
1204 /* Still nothing found? Then let's give up */
1205 if (u->load_state == UNIT_STUB)
1208 /* We were able to load something, then let's add in the
1209 * dropin directories. */
1210 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1213 /* This is a new unit? Then let's add in some extras */
1214 if (u->load_state == UNIT_LOADED) {
1215 service_fix_output(s);
1217 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1220 if ((r = unit_add_default_cgroups(u)) < 0)
1223 #ifdef HAVE_SYSV_COMPAT
1224 if ((r = sysv_fix_order(s)) < 0)
1228 if ((r = fsck_fix_order(s)) < 0)
1232 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1235 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1236 s->notify_access = NOTIFY_MAIN;
1238 if (s->type == SERVICE_DBUS || s->bus_name)
1239 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1242 if (UNIT(s)->default_dependencies)
1243 if ((r = service_add_default_dependencies(s)) < 0)
1247 return service_verify(s);
1250 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1252 ServiceExecCommand c;
1253 Service *s = SERVICE(u);
1254 const char *prefix2;
1259 p2 = strappend(prefix, "\t");
1260 prefix2 = p2 ? p2 : prefix;
1263 "%sService State: %s\n"
1265 "%sReload Result: %s\n"
1266 "%sPermissionsStartOnly: %s\n"
1267 "%sRootDirectoryStartOnly: %s\n"
1268 "%sRemainAfterExit: %s\n"
1269 "%sGuessMainPID: %s\n"
1272 "%sNotifyAccess: %s\n",
1273 prefix, service_state_to_string(s->state),
1274 prefix, service_result_to_string(s->result),
1275 prefix, service_result_to_string(s->reload_result),
1276 prefix, yes_no(s->permissions_start_only),
1277 prefix, yes_no(s->root_directory_start_only),
1278 prefix, yes_no(s->remain_after_exit),
1279 prefix, yes_no(s->guess_main_pid),
1280 prefix, service_type_to_string(s->type),
1281 prefix, service_restart_to_string(s->restart),
1282 prefix, notify_access_to_string(s->notify_access));
1284 if (s->control_pid > 0)
1286 "%sControl PID: %lu\n",
1287 prefix, (unsigned long) s->control_pid);
1289 if (s->main_pid > 0)
1292 "%sMain PID Known: %s\n"
1293 "%sMain PID Alien: %s\n",
1294 prefix, (unsigned long) s->main_pid,
1295 prefix, yes_no(s->main_pid_known),
1296 prefix, yes_no(s->main_pid_alien));
1301 prefix, s->pid_file);
1306 "%sBus Name Good: %s\n",
1307 prefix, s->bus_name,
1308 prefix, yes_no(s->bus_name_good));
1310 exec_context_dump(&s->exec_context, f, prefix);
1312 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1314 if (!s->exec_command[c])
1317 fprintf(f, "%s-> %s:\n",
1318 prefix, service_exec_command_to_string(c));
1320 exec_command_dump_list(s->exec_command[c], f, prefix2);
1323 #ifdef HAVE_SYSV_COMPAT
1326 "%sSysV Init Script Path: %s\n"
1327 "%sSysV Init Script has LSB Header: %s\n"
1328 "%sSysVEnabled: %s\n",
1329 prefix, s->sysv_path,
1330 prefix, yes_no(s->sysv_has_lsb),
1331 prefix, yes_no(s->sysv_enabled));
1333 if (s->sysv_start_priority >= 0)
1335 "%sSysVStartPriority: %i\n",
1336 prefix, s->sysv_start_priority);
1338 if (s->sysv_runlevels)
1339 fprintf(f, "%sSysVRunLevels: %s\n",
1340 prefix, s->sysv_runlevels);
1343 if (s->fsck_passno > 0)
1345 "%sFsckPassNo: %i\n",
1346 prefix, s->fsck_passno);
1349 fprintf(f, "%sStatus Text: %s\n",
1350 prefix, s->status_text);
1355 static int service_load_pid_file(Service *s, bool may_warn) {
1365 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1367 log_info("PID file %s not readable (yet?) after %s.",
1368 s->pid_file, service_state_to_string(s->state));
1372 r = parse_pid(k, &pid);
1378 if (kill(pid, 0) < 0 && errno != EPERM) {
1380 log_info("PID %lu read from file %s does not exist.",
1381 (unsigned long) pid, s->pid_file);
1385 if (s->main_pid_known) {
1386 if (pid == s->main_pid)
1389 log_debug("Main PID changing: %lu -> %lu",
1390 (unsigned long) s->main_pid, (unsigned long) pid);
1391 service_unwatch_main_pid(s);
1392 s->main_pid_known = false;
1394 log_debug("Main PID loaded: %lu", (unsigned long) pid);
1396 if ((r = service_set_main_pid(s, pid)) < 0)
1399 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1400 /* FIXME: we need to do something here */
1406 static int service_search_main_pid(Service *s) {
1412 /* If we know it anyway, don't ever fallback to unreliable
1414 if (s->main_pid_known)
1417 if (!s->guess_main_pid)
1420 assert(s->main_pid <= 0);
1422 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1425 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1426 if ((r = service_set_main_pid(s, pid)) < 0)
1429 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1430 /* FIXME: we need to do something here */
1436 static void service_notify_sockets_dead(Service *s) {
1442 /* Notifies all our sockets when we die */
1444 if (s->socket_fd >= 0)
1447 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1448 if (u->type == UNIT_SOCKET)
1449 socket_notify_service_dead(SOCKET(u));
1454 static void service_set_state(Service *s, ServiceState state) {
1455 ServiceState old_state;
1458 old_state = s->state;
1461 service_unwatch_pid_file(s);
1463 if (state != SERVICE_START_PRE &&
1464 state != SERVICE_START &&
1465 state != SERVICE_START_POST &&
1466 state != SERVICE_RELOAD &&
1467 state != SERVICE_STOP &&
1468 state != SERVICE_STOP_SIGTERM &&
1469 state != SERVICE_STOP_SIGKILL &&
1470 state != SERVICE_STOP_POST &&
1471 state != SERVICE_FINAL_SIGTERM &&
1472 state != SERVICE_FINAL_SIGKILL &&
1473 state != SERVICE_AUTO_RESTART)
1474 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1476 if (state != SERVICE_START &&
1477 state != SERVICE_START_POST &&
1478 state != SERVICE_RUNNING &&
1479 state != SERVICE_RELOAD &&
1480 state != SERVICE_STOP &&
1481 state != SERVICE_STOP_SIGTERM &&
1482 state != SERVICE_STOP_SIGKILL) {
1483 service_unwatch_main_pid(s);
1484 s->main_command = NULL;
1487 if (state != SERVICE_START_PRE &&
1488 state != SERVICE_START &&
1489 state != SERVICE_START_POST &&
1490 state != SERVICE_RELOAD &&
1491 state != SERVICE_STOP &&
1492 state != SERVICE_STOP_SIGTERM &&
1493 state != SERVICE_STOP_SIGKILL &&
1494 state != SERVICE_STOP_POST &&
1495 state != SERVICE_FINAL_SIGTERM &&
1496 state != SERVICE_FINAL_SIGKILL) {
1497 service_unwatch_control_pid(s);
1498 s->control_command = NULL;
1499 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1502 if (state == SERVICE_DEAD ||
1503 state == SERVICE_STOP ||
1504 state == SERVICE_STOP_SIGTERM ||
1505 state == SERVICE_STOP_SIGKILL ||
1506 state == SERVICE_STOP_POST ||
1507 state == SERVICE_FINAL_SIGTERM ||
1508 state == SERVICE_FINAL_SIGKILL ||
1509 state == SERVICE_FAILED ||
1510 state == SERVICE_AUTO_RESTART)
1511 service_notify_sockets_dead(s);
1513 if (state != SERVICE_START_PRE &&
1514 state != SERVICE_START &&
1515 state != SERVICE_START_POST &&
1516 state != SERVICE_RUNNING &&
1517 state != SERVICE_RELOAD &&
1518 state != SERVICE_STOP &&
1519 state != SERVICE_STOP_SIGTERM &&
1520 state != SERVICE_STOP_SIGKILL &&
1521 state != SERVICE_STOP_POST &&
1522 state != SERVICE_FINAL_SIGTERM &&
1523 state != SERVICE_FINAL_SIGKILL &&
1524 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1525 service_close_socket_fd(s);
1526 service_connection_unref(s);
1529 if (state == SERVICE_STOP)
1530 service_stop_watchdog(s);
1532 /* For the inactive states unit_notify() will trim the cgroup,
1533 * but for exit we have to do that ourselves... */
1534 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1535 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1537 if (old_state != state)
1538 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1540 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], s->reload_result == SERVICE_SUCCESS);
1541 s->reload_result = SERVICE_SUCCESS;
1544 static int service_coldplug(Unit *u) {
1545 Service *s = SERVICE(u);
1549 assert(s->state == SERVICE_DEAD);
1551 if (s->deserialized_state != s->state) {
1553 if (s->deserialized_state == SERVICE_START_PRE ||
1554 s->deserialized_state == SERVICE_START ||
1555 s->deserialized_state == SERVICE_START_POST ||
1556 s->deserialized_state == SERVICE_RELOAD ||
1557 s->deserialized_state == SERVICE_STOP ||
1558 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1559 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1560 s->deserialized_state == SERVICE_STOP_POST ||
1561 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1562 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1563 s->deserialized_state == SERVICE_AUTO_RESTART) {
1565 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1568 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1570 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1575 if ((s->deserialized_state == SERVICE_START &&
1576 (s->type == SERVICE_FORKING ||
1577 s->type == SERVICE_DBUS ||
1578 s->type == SERVICE_ONESHOT ||
1579 s->type == SERVICE_NOTIFY)) ||
1580 s->deserialized_state == SERVICE_START_POST ||
1581 s->deserialized_state == SERVICE_RUNNING ||
1582 s->deserialized_state == SERVICE_RELOAD ||
1583 s->deserialized_state == SERVICE_STOP ||
1584 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1585 s->deserialized_state == SERVICE_STOP_SIGKILL)
1586 if (s->main_pid > 0)
1587 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1590 if (s->deserialized_state == SERVICE_START_PRE ||
1591 s->deserialized_state == SERVICE_START ||
1592 s->deserialized_state == SERVICE_START_POST ||
1593 s->deserialized_state == SERVICE_RELOAD ||
1594 s->deserialized_state == SERVICE_STOP ||
1595 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1596 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1597 s->deserialized_state == SERVICE_STOP_POST ||
1598 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1599 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1600 if (s->control_pid > 0)
1601 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1604 if (s->deserialized_state == SERVICE_START_POST ||
1605 s->deserialized_state == SERVICE_RUNNING)
1606 service_handle_watchdog(s);
1608 service_set_state(s, s->deserialized_state);
1613 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1617 unsigned rn_fds = 0;
1624 if (s->socket_fd >= 0)
1627 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1632 if (u->type != UNIT_SOCKET)
1637 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1649 if (!(t = new(int, rn_fds+cn_fds))) {
1655 memcpy(t, rfds, rn_fds * sizeof(int));
1656 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1661 rn_fds = rn_fds+cn_fds;
1676 static int service_spawn(
1681 bool apply_permissions,
1683 bool apply_tty_stdin,
1684 bool set_notify_socket,
1689 int *fds = NULL, *fdsbuf = NULL;
1690 unsigned n_fds = 0, n_env = 0;
1691 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1698 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1699 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1700 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1702 if (s->socket_fd >= 0) {
1703 fds = &s->socket_fd;
1706 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1713 if (timeout && s->timeout_usec) {
1714 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1717 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1719 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1724 if (!(our_env = new0(char*, 4))) {
1729 if (set_notify_socket)
1730 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1735 if (s->main_pid > 0)
1736 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1741 if (s->watchdog_usec > 0)
1742 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1747 if (!(final_env = strv_env_merge(2,
1748 UNIT(s)->manager->environment,
1763 UNIT(s)->manager->confirm_spawn,
1764 UNIT(s)->cgroup_bondings,
1765 UNIT(s)->cgroup_attributes,
1772 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1773 /* FIXME: we need to do something here */
1779 strv_free(final_env);
1789 strv_free(final_env);
1792 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1797 static int main_pid_good(Service *s) {
1800 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1803 /* If we know the pid file, then lets just check if it is
1805 if (s->main_pid_known) {
1807 /* If it's an alien child let's check if it is still
1809 if (s->main_pid_alien)
1810 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1812 /* .. otherwise assume we'll get a SIGCHLD for it,
1813 * which we really should wait for to collect exit
1814 * status and code */
1815 return s->main_pid > 0;
1818 /* We don't know the pid */
1822 static int control_pid_good(Service *s) {
1825 return s->control_pid > 0;
1828 static int cgroup_good(Service *s) {
1833 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1839 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1843 if (f != SERVICE_SUCCESS)
1846 if (allow_restart &&
1847 !s->forbid_restart &&
1848 (s->restart == SERVICE_RESTART_ALWAYS ||
1849 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1850 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1851 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1852 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1854 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1858 service_set_state(s, SERVICE_AUTO_RESTART);
1860 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1862 s->forbid_restart = false;
1867 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1868 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1871 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1873 static void service_enter_stop_post(Service *s, ServiceResult f) {
1877 if (f != SERVICE_SUCCESS)
1880 service_unwatch_control_pid(s);
1882 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1883 s->control_command_id = SERVICE_EXEC_STOP_POST;
1885 if ((r = service_spawn(s,
1889 !s->permissions_start_only,
1890 !s->root_directory_start_only,
1893 &s->control_pid)) < 0)
1897 service_set_state(s, SERVICE_STOP_POST);
1899 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1904 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1905 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1908 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1910 Set *pid_set = NULL;
1911 bool wait_for_exit = false;
1915 if (f != SERVICE_SUCCESS)
1918 if (s->exec_context.kill_mode != KILL_NONE) {
1919 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1921 if (s->main_pid > 0) {
1922 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1923 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1925 wait_for_exit = !s->main_pid_alien;
1928 if (s->control_pid > 0) {
1929 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1930 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1932 wait_for_exit = true;
1935 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1937 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1942 /* Exclude the main/control pids from being killed via the cgroup */
1943 if (s->main_pid > 0)
1944 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1947 if (s->control_pid > 0)
1948 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1951 if ((r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, pid_set)) < 0) {
1952 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1953 log_warning("Failed to kill control group: %s", strerror(-r));
1955 wait_for_exit = true;
1962 if (wait_for_exit) {
1963 if (s->timeout_usec > 0)
1964 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1967 service_set_state(s, state);
1968 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1969 service_enter_stop_post(s, SERVICE_SUCCESS);
1971 service_enter_dead(s, SERVICE_SUCCESS, true);
1976 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
1978 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1979 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
1981 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
1987 static void service_enter_stop(Service *s, ServiceResult f) {
1992 if (f != SERVICE_SUCCESS)
1995 service_unwatch_control_pid(s);
1997 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1998 s->control_command_id = SERVICE_EXEC_STOP;
2000 if ((r = service_spawn(s,
2004 !s->permissions_start_only,
2005 !s->root_directory_start_only,
2008 &s->control_pid)) < 0)
2011 service_set_state(s, SERVICE_STOP);
2013 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2018 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2019 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2022 static void service_enter_running(Service *s, ServiceResult f) {
2023 int main_pid_ok, cgroup_ok;
2026 if (f != SERVICE_SUCCESS)
2029 main_pid_ok = main_pid_good(s);
2030 cgroup_ok = cgroup_good(s);
2032 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2033 (s->bus_name_good || s->type != SERVICE_DBUS))
2034 service_set_state(s, SERVICE_RUNNING);
2035 else if (s->remain_after_exit)
2036 service_set_state(s, SERVICE_EXITED);
2038 service_enter_stop(s, SERVICE_SUCCESS);
2041 static void service_enter_start_post(Service *s) {
2045 service_unwatch_control_pid(s);
2047 if (s->watchdog_usec > 0)
2048 service_reset_watchdog(s);
2050 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2051 s->control_command_id = SERVICE_EXEC_START_POST;
2053 if ((r = service_spawn(s,
2057 !s->permissions_start_only,
2058 !s->root_directory_start_only,
2061 &s->control_pid)) < 0)
2064 service_set_state(s, SERVICE_START_POST);
2066 service_enter_running(s, SERVICE_SUCCESS);
2071 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2072 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2075 static void service_enter_start(Service *s) {
2082 assert(s->exec_command[SERVICE_EXEC_START]);
2083 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2085 if (s->type == SERVICE_FORKING)
2086 service_unwatch_control_pid(s);
2088 service_unwatch_main_pid(s);
2090 /* We want to ensure that nobody leaks processes from
2091 * START_PRE here, so let's go on a killing spree, People
2092 * should not spawn long running processes from START_PRE. */
2093 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
2095 if (s->type == SERVICE_FORKING) {
2096 s->control_command_id = SERVICE_EXEC_START;
2097 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2099 s->main_command = NULL;
2101 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2102 s->control_command = NULL;
2104 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2107 if ((r = service_spawn(s,
2109 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
2114 s->notify_access != NOTIFY_NONE,
2118 if (s->type == SERVICE_SIMPLE) {
2119 /* For simple services we immediately start
2120 * the START_POST binaries. */
2122 service_set_main_pid(s, pid);
2123 service_enter_start_post(s);
2125 } else if (s->type == SERVICE_FORKING) {
2127 /* For forking services we wait until the start
2128 * process exited. */
2130 s->control_pid = pid;
2131 service_set_state(s, SERVICE_START);
2133 } else if (s->type == SERVICE_ONESHOT ||
2134 s->type == SERVICE_DBUS ||
2135 s->type == SERVICE_NOTIFY) {
2137 /* For oneshot services we wait until the start
2138 * process exited, too, but it is our main process. */
2140 /* For D-Bus services we know the main pid right away,
2141 * but wait for the bus name to appear on the
2142 * bus. Notify services are similar. */
2144 service_set_main_pid(s, pid);
2145 service_set_state(s, SERVICE_START);
2147 assert_not_reached("Unknown service type");
2152 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2153 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2156 static void service_enter_start_pre(Service *s) {
2161 service_unwatch_control_pid(s);
2163 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2165 /* Before we start anything, let's clear up what might
2166 * be left from previous runs. */
2167 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, NULL);
2169 s->control_command_id = SERVICE_EXEC_START_PRE;
2171 if ((r = service_spawn(s,
2175 !s->permissions_start_only,
2176 !s->root_directory_start_only,
2179 &s->control_pid)) < 0)
2182 service_set_state(s, SERVICE_START_PRE);
2184 service_enter_start(s);
2189 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2190 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2193 static void service_enter_restart(Service *s) {
2198 dbus_error_init(&error);
2201 log_info("Job pending for unit, delaying automatic restart.");
2203 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2207 service_enter_dead(s, SERVICE_SUCCESS, false);
2209 if ((r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
2212 log_debug("%s scheduled restart job.", UNIT(s)->id);
2216 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2217 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2219 dbus_error_free(&error);
2222 static void service_enter_reload(Service *s) {
2227 service_unwatch_control_pid(s);
2229 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2230 s->control_command_id = SERVICE_EXEC_RELOAD;
2232 if ((r = service_spawn(s,
2236 !s->permissions_start_only,
2237 !s->root_directory_start_only,
2240 &s->control_pid)) < 0)
2243 service_set_state(s, SERVICE_RELOAD);
2245 service_enter_running(s, SERVICE_SUCCESS);
2250 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2251 s->reload_result = SERVICE_FAILURE_RESOURCES;
2252 service_enter_running(s, SERVICE_SUCCESS);
2255 static void service_run_next_control(Service *s) {
2259 assert(s->control_command);
2260 assert(s->control_command->command_next);
2262 assert(s->control_command_id != SERVICE_EXEC_START);
2264 s->control_command = s->control_command->command_next;
2265 service_unwatch_control_pid(s);
2267 if ((r = service_spawn(s,
2271 !s->permissions_start_only,
2272 !s->root_directory_start_only,
2273 s->control_command_id == SERVICE_EXEC_START_PRE ||
2274 s->control_command_id == SERVICE_EXEC_STOP_POST,
2276 &s->control_pid)) < 0)
2282 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2284 if (s->state == SERVICE_START_PRE)
2285 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2286 else if (s->state == SERVICE_STOP)
2287 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2288 else if (s->state == SERVICE_STOP_POST)
2289 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2290 else if (s->state == SERVICE_RELOAD) {
2291 s->reload_result = SERVICE_FAILURE_RESOURCES;
2292 service_enter_running(s, SERVICE_SUCCESS);
2294 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2297 static void service_run_next_main(Service *s) {
2302 assert(s->main_command);
2303 assert(s->main_command->command_next);
2304 assert(s->type == SERVICE_ONESHOT);
2306 s->main_command = s->main_command->command_next;
2307 service_unwatch_main_pid(s);
2309 if ((r = service_spawn(s,
2316 s->notify_access != NOTIFY_NONE,
2320 service_set_main_pid(s, pid);
2325 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2326 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2329 static int service_start_limit_test(Service *s) {
2332 if (ratelimit_test(&s->start_limit))
2335 switch (s->start_limit_action) {
2337 case SERVICE_START_LIMIT_NONE:
2338 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2341 case SERVICE_START_LIMIT_REBOOT: {
2345 dbus_error_init(&error);
2347 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2349 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2351 log_error("Failed to reboot: %s.", bus_error(&error, r));
2352 dbus_error_free(&error);
2358 case SERVICE_START_LIMIT_REBOOT_FORCE:
2359 log_warning("%s start request repeated too quickly, force rebooting.", UNIT(s)->id);
2360 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2363 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2364 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2365 reboot(RB_AUTOBOOT);
2369 log_error("start limit action=%i", s->start_limit_action);
2370 assert_not_reached("Unknown StartLimitAction.");
2376 static int service_start(Unit *u) {
2377 Service *s = SERVICE(u);
2382 /* We cannot fulfill this request right now, try again later
2384 if (s->state == SERVICE_STOP ||
2385 s->state == SERVICE_STOP_SIGTERM ||
2386 s->state == SERVICE_STOP_SIGKILL ||
2387 s->state == SERVICE_STOP_POST ||
2388 s->state == SERVICE_FINAL_SIGTERM ||
2389 s->state == SERVICE_FINAL_SIGKILL)
2392 /* Already on it! */
2393 if (s->state == SERVICE_START_PRE ||
2394 s->state == SERVICE_START ||
2395 s->state == SERVICE_START_POST)
2398 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2400 /* Make sure we don't enter a busy loop of some kind. */
2401 r = service_start_limit_test(s);
2405 s->result = SERVICE_SUCCESS;
2406 s->reload_result = SERVICE_SUCCESS;
2407 s->main_pid_known = false;
2408 s->main_pid_alien = false;
2409 s->forbid_restart = false;
2411 service_enter_start_pre(s);
2415 static int service_stop(Unit *u) {
2416 Service *s = SERVICE(u);
2420 /* This is a user request, so don't do restarts on this
2422 s->forbid_restart = true;
2425 if (s->state == SERVICE_STOP ||
2426 s->state == SERVICE_STOP_SIGTERM ||
2427 s->state == SERVICE_STOP_SIGKILL ||
2428 s->state == SERVICE_STOP_POST ||
2429 s->state == SERVICE_FINAL_SIGTERM ||
2430 s->state == SERVICE_FINAL_SIGKILL)
2433 /* Don't allow a restart */
2434 if (s->state == SERVICE_AUTO_RESTART) {
2435 service_set_state(s, SERVICE_DEAD);
2439 /* If there's already something running we go directly into
2441 if (s->state == SERVICE_START_PRE ||
2442 s->state == SERVICE_START ||
2443 s->state == SERVICE_START_POST ||
2444 s->state == SERVICE_RELOAD) {
2445 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2449 assert(s->state == SERVICE_RUNNING ||
2450 s->state == SERVICE_EXITED);
2452 service_enter_stop(s, SERVICE_SUCCESS);
2456 static int service_reload(Unit *u) {
2457 Service *s = SERVICE(u);
2461 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2463 service_enter_reload(s);
2467 static bool service_can_reload(Unit *u) {
2468 Service *s = SERVICE(u);
2472 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2475 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2476 Service *s = SERVICE(u);
2482 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2483 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2484 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2486 if (s->control_pid > 0)
2487 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2489 if (s->main_pid_known && s->main_pid > 0)
2490 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2492 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2495 unit_serialize_item(u, f, "status-text", s->status_text);
2497 /* FIXME: There's a minor uncleanliness here: if there are
2498 * multiple commands attached here, we will start from the
2499 * first one again */
2500 if (s->control_command_id >= 0)
2501 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2503 if (s->socket_fd >= 0) {
2506 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2509 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2512 if (s->main_exec_status.pid > 0) {
2513 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2514 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2515 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2517 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2518 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2519 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2522 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2523 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2528 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2529 Service *s = SERVICE(u);
2536 if (streq(key, "state")) {
2539 if ((state = service_state_from_string(value)) < 0)
2540 log_debug("Failed to parse state value %s", value);
2542 s->deserialized_state = state;
2543 } else if (streq(key, "result")) {
2546 f = service_result_from_string(value);
2548 log_debug("Failed to parse result value %s", value);
2549 else if (f != SERVICE_SUCCESS)
2552 } else if (streq(key, "reload-result")) {
2555 f = service_result_from_string(value);
2557 log_debug("Failed to parse reload result value %s", value);
2558 else if (f != SERVICE_SUCCESS)
2559 s->reload_result = f;
2561 } else if (streq(key, "control-pid")) {
2564 if (parse_pid(value, &pid) < 0)
2565 log_debug("Failed to parse control-pid value %s", value);
2567 s->control_pid = pid;
2568 } else if (streq(key, "main-pid")) {
2571 if (parse_pid(value, &pid) < 0)
2572 log_debug("Failed to parse main-pid value %s", value);
2574 service_set_main_pid(s, (pid_t) pid);
2575 } else if (streq(key, "main-pid-known")) {
2578 if ((b = parse_boolean(value)) < 0)
2579 log_debug("Failed to parse main-pid-known value %s", value);
2581 s->main_pid_known = b;
2582 } else if (streq(key, "status-text")) {
2585 if ((t = strdup(value))) {
2586 free(s->status_text);
2590 } else if (streq(key, "control-command")) {
2591 ServiceExecCommand id;
2593 if ((id = service_exec_command_from_string(value)) < 0)
2594 log_debug("Failed to parse exec-command value %s", value);
2596 s->control_command_id = id;
2597 s->control_command = s->exec_command[id];
2599 } else if (streq(key, "socket-fd")) {
2602 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2603 log_debug("Failed to parse socket-fd value %s", value);
2606 if (s->socket_fd >= 0)
2607 close_nointr_nofail(s->socket_fd);
2608 s->socket_fd = fdset_remove(fds, fd);
2610 } else if (streq(key, "main-exec-status-pid")) {
2613 if (parse_pid(value, &pid) < 0)
2614 log_debug("Failed to parse main-exec-status-pid value %s", value);
2616 s->main_exec_status.pid = pid;
2617 } else if (streq(key, "main-exec-status-code")) {
2620 if (safe_atoi(value, &i) < 0)
2621 log_debug("Failed to parse main-exec-status-code value %s", value);
2623 s->main_exec_status.code = i;
2624 } else if (streq(key, "main-exec-status-status")) {
2627 if (safe_atoi(value, &i) < 0)
2628 log_debug("Failed to parse main-exec-status-status value %s", value);
2630 s->main_exec_status.status = i;
2631 } else if (streq(key, "main-exec-status-start"))
2632 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2633 else if (streq(key, "main-exec-status-exit"))
2634 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2635 else if (streq(key, "watchdog-timestamp"))
2636 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2638 log_debug("Unknown serialization key '%s'", key);
2643 static UnitActiveState service_active_state(Unit *u) {
2646 return state_translation_table[SERVICE(u)->state];
2649 static const char *service_sub_state_to_string(Unit *u) {
2652 return service_state_to_string(SERVICE(u)->state);
2655 static bool service_check_gc(Unit *u) {
2656 Service *s = SERVICE(u);
2660 /* Never clean up services that still have a process around,
2661 * even if the service is formally dead. */
2662 if (cgroup_good(s) > 0 ||
2663 main_pid_good(s) > 0 ||
2664 control_pid_good(s) > 0)
2667 #ifdef HAVE_SYSV_COMPAT
2675 static bool service_check_snapshot(Unit *u) {
2676 Service *s = SERVICE(u);
2680 return !s->got_socket_fd;
2683 static int service_retry_pid_file(Service *s) {
2686 assert(s->pid_file);
2687 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2689 r = service_load_pid_file(s, false);
2693 service_unwatch_pid_file(s);
2695 service_enter_running(s, SERVICE_SUCCESS);
2699 static int service_watch_pid_file(Service *s) {
2702 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2703 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2707 /* the pidfile might have appeared just before we set the watch */
2708 service_retry_pid_file(s);
2712 log_error("Failed to set a watch for %s's PID file %s: %s",
2713 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2714 service_unwatch_pid_file(s);
2718 static int service_demand_pid_file(Service *s) {
2721 assert(s->pid_file);
2722 assert(!s->pid_file_pathspec);
2724 ps = new0(PathSpec, 1);
2728 ps->path = strdup(s->pid_file);
2734 path_kill_slashes(ps->path);
2736 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2737 * keep their PID file open all the time. */
2738 ps->type = PATH_MODIFIED;
2739 ps->inotify_fd = -1;
2741 s->pid_file_pathspec = ps;
2743 return service_watch_pid_file(s);
2746 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2747 Service *s = SERVICE(u);
2751 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2752 assert(s->pid_file_pathspec);
2753 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2755 log_debug("inotify event for %s", u->id);
2757 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2760 if (service_retry_pid_file(s) == 0)
2763 if (service_watch_pid_file(s) < 0)
2768 service_unwatch_pid_file(s);
2769 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2772 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2773 Service *s = SERVICE(u);
2779 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2780 f = SERVICE_SUCCESS;
2781 else if (code == CLD_EXITED)
2782 f = SERVICE_FAILURE_EXIT_CODE;
2783 else if (code == CLD_KILLED)
2784 f = SERVICE_FAILURE_SIGNAL;
2785 else if (code == CLD_DUMPED)
2786 f = SERVICE_FAILURE_CORE_DUMP;
2788 assert_not_reached("Unknown code");
2790 if (s->main_pid == pid) {
2791 /* Forking services may occasionally move to a new PID.
2792 * As long as they update the PID file before exiting the old
2793 * PID, they're fine. */
2794 if (service_load_pid_file(s, false) == 0)
2798 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2800 /* If this is not a forking service than the main
2801 * process got started and hence we copy the exit
2802 * status so that it is recorded both as main and as
2803 * control process exit status */
2804 if (s->main_command) {
2805 s->main_command->exec_status = s->main_exec_status;
2807 if (s->main_command->ignore)
2808 f = SERVICE_SUCCESS;
2811 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2812 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2814 if (f != SERVICE_SUCCESS)
2817 if (s->main_command &&
2818 s->main_command->command_next &&
2819 f == SERVICE_SUCCESS) {
2821 /* There is another command to *
2822 * execute, so let's do that. */
2824 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2825 service_run_next_main(s);
2829 /* The service exited, so the service is officially
2831 s->main_command = NULL;
2835 case SERVICE_START_POST:
2836 case SERVICE_RELOAD:
2838 /* Need to wait until the operation is
2843 if (s->type == SERVICE_ONESHOT) {
2844 /* This was our main goal, so let's go on */
2845 if (f == SERVICE_SUCCESS)
2846 service_enter_start_post(s);
2848 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2851 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2856 case SERVICE_RUNNING:
2857 service_enter_running(s, f);
2860 case SERVICE_STOP_SIGTERM:
2861 case SERVICE_STOP_SIGKILL:
2863 if (!control_pid_good(s))
2864 service_enter_stop_post(s, f);
2866 /* If there is still a control process, wait for that first */
2870 assert_not_reached("Uh, main process died at wrong time.");
2874 } else if (s->control_pid == pid) {
2878 if (s->control_command) {
2879 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2881 if (s->control_command->ignore)
2882 f = SERVICE_SUCCESS;
2885 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2886 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2888 if (f != SERVICE_SUCCESS)
2891 if (s->control_command &&
2892 s->control_command->command_next &&
2893 f == SERVICE_SUCCESS) {
2895 /* There is another command to *
2896 * execute, so let's do that. */
2898 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2899 service_run_next_control(s);
2902 /* No further commands for this step, so let's
2903 * figure out what to do next */
2905 s->control_command = NULL;
2906 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2908 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
2912 case SERVICE_START_PRE:
2913 if (f == SERVICE_SUCCESS)
2914 service_enter_start(s);
2916 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2920 assert(s->type == SERVICE_FORKING);
2922 if (f != SERVICE_SUCCESS) {
2923 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2928 bool has_start_post;
2931 /* Let's try to load the pid file here if we can.
2932 * The PID file might actually be created by a START_POST
2933 * script. In that case don't worry if the loading fails. */
2935 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
2936 r = service_load_pid_file(s, !has_start_post);
2937 if (!has_start_post && r < 0) {
2938 r = service_demand_pid_file(s);
2939 if (r < 0 || !cgroup_good(s))
2940 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2944 service_search_main_pid(s);
2946 service_enter_start_post(s);
2949 case SERVICE_START_POST:
2950 if (f != SERVICE_SUCCESS) {
2951 service_enter_stop(s, f);
2958 r = service_load_pid_file(s, true);
2960 r = service_demand_pid_file(s);
2961 if (r < 0 || !cgroup_good(s))
2962 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2966 service_search_main_pid(s);
2968 service_enter_running(s, SERVICE_SUCCESS);
2971 case SERVICE_RELOAD:
2972 if (f == SERVICE_SUCCESS) {
2973 service_load_pid_file(s, true);
2974 service_search_main_pid(s);
2977 s->reload_result = f;
2978 service_enter_running(s, SERVICE_SUCCESS);
2982 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
2985 case SERVICE_STOP_SIGTERM:
2986 case SERVICE_STOP_SIGKILL:
2987 if (main_pid_good(s) <= 0)
2988 service_enter_stop_post(s, f);
2990 /* If there is still a service
2991 * process around, wait until
2992 * that one quit, too */
2995 case SERVICE_STOP_POST:
2996 case SERVICE_FINAL_SIGTERM:
2997 case SERVICE_FINAL_SIGKILL:
2998 service_enter_dead(s, f, true);
3002 assert_not_reached("Uh, control process died at wrong time.");
3007 /* Notify clients about changed exit status */
3008 unit_add_to_dbus_queue(u);
3011 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3012 Service *s = SERVICE(u);
3015 assert(elapsed == 1);
3017 if (w == &s->watchdog_watch) {
3018 service_handle_watchdog(s);
3022 assert(w == &s->timer_watch);
3026 case SERVICE_START_PRE:
3028 log_warning("%s operation timed out. Terminating.", u->id);
3029 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3032 case SERVICE_START_POST:
3033 log_warning("%s operation timed out. Stopping.", u->id);
3034 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3037 case SERVICE_RELOAD:
3038 log_warning("%s operation timed out. Stopping.", u->id);
3039 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3040 service_enter_running(s, SERVICE_SUCCESS);
3044 log_warning("%s stopping timed out. Terminating.", u->id);
3045 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3048 case SERVICE_STOP_SIGTERM:
3049 if (s->exec_context.send_sigkill) {
3050 log_warning("%s stopping timed out. Killing.", u->id);
3051 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3053 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3054 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3059 case SERVICE_STOP_SIGKILL:
3060 /* Uh, we sent a SIGKILL and it is still not gone?
3061 * Must be something we cannot kill, so let's just be
3062 * weirded out and continue */
3064 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3065 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3068 case SERVICE_STOP_POST:
3069 log_warning("%s stopping timed out (2). Terminating.", u->id);
3070 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3073 case SERVICE_FINAL_SIGTERM:
3074 if (s->exec_context.send_sigkill) {
3075 log_warning("%s stopping timed out (2). Killing.", u->id);
3076 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3078 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3079 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3084 case SERVICE_FINAL_SIGKILL:
3085 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3086 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3089 case SERVICE_AUTO_RESTART:
3090 log_info("%s holdoff time over, scheduling restart.", u->id);
3091 service_enter_restart(s);
3095 assert_not_reached("Timeout at wrong time.");
3099 static void service_cgroup_notify_event(Unit *u) {
3100 Service *s = SERVICE(u);
3104 log_debug("%s: cgroup is empty", u->id);
3108 /* Waiting for SIGCHLD is usually more interesting,
3109 * because it includes return codes/signals. Which is
3110 * why we ignore the cgroup events for most cases,
3111 * except when we don't know pid which to expect the
3115 case SERVICE_START_POST:
3116 /* If we were hoping for the daemon to write its PID file,
3117 * we can give up now. */
3118 if (s->pid_file_pathspec) {
3119 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3120 service_unwatch_pid_file(s);
3121 if (s->state == SERVICE_START)
3122 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3124 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3128 case SERVICE_RUNNING:
3129 /* service_enter_running() will figure out what to do */
3130 service_enter_running(s, SERVICE_SUCCESS);
3133 case SERVICE_STOP_SIGTERM:
3134 case SERVICE_STOP_SIGKILL:
3136 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3137 service_enter_stop_post(s, SERVICE_SUCCESS);
3141 case SERVICE_FINAL_SIGTERM:
3142 case SERVICE_FINAL_SIGKILL:
3143 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3144 service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
3153 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3154 Service *s = SERVICE(u);
3159 if (s->notify_access == NOTIFY_NONE) {
3160 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3161 u->id, (unsigned long) pid);
3165 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3166 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3167 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3171 log_debug("%s: Got message", u->id);
3173 /* Interpret MAINPID= */
3174 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3175 (s->state == SERVICE_START ||
3176 s->state == SERVICE_START_POST ||
3177 s->state == SERVICE_RUNNING ||
3178 s->state == SERVICE_RELOAD)) {
3180 if (parse_pid(e + 8, &pid) < 0)
3181 log_warning("Failed to parse notification message %s", e);
3183 log_debug("%s: got %s", u->id, e);
3184 service_set_main_pid(s, pid);
3188 /* Interpret READY= */
3189 if (s->type == SERVICE_NOTIFY &&
3190 s->state == SERVICE_START &&
3191 strv_find(tags, "READY=1")) {
3192 log_debug("%s: got READY=1", u->id);
3194 service_enter_start_post(s);
3197 /* Interpret STATUS= */
3198 if ((e = strv_find_prefix(tags, "STATUS="))) {
3202 if (!(t = strdup(e+7))) {
3203 log_error("Failed to allocate string.");
3207 log_debug("%s: got %s", u->id, e);
3209 free(s->status_text);
3212 free(s->status_text);
3213 s->status_text = NULL;
3217 if (strv_find(tags, "WATCHDOG=1")) {
3218 log_debug("%s: got WATCHDOG=1", u->id);
3219 service_reset_watchdog(s);
3222 /* Notify clients about changed status or main pid */
3223 unit_add_to_dbus_queue(u);
3226 #ifdef HAVE_SYSV_COMPAT
3229 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3233 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3234 r = errno == ENOENT ? 0 : -errno;
3239 char l[LINE_MAX], *t;
3240 char **parsed = NULL;
3242 if (!fgets(l, sizeof(l), f)) {
3247 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3252 if (*t != '$' && *t != '<')
3255 parsed = strv_split(t,WHITESPACE);
3256 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3257 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3260 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3262 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3264 char *dep = NULL, *name, **j;
3266 STRV_FOREACH (j, parsed+1) {
3275 if (sysv_translate_facility(name, NULL, &dep) < 0)
3278 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3293 static int service_enumerate(Manager *m) {
3297 char *path = NULL, *fpath = NULL, *name = NULL;
3298 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3305 if (m->running_as != MANAGER_SYSTEM)
3308 zero(runlevel_services);
3310 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3311 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3315 path = join(*p, "/", rcnd_table[i].path, NULL);
3324 if (!(d = opendir(path))) {
3325 if (errno != ENOENT)
3326 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3331 while ((de = readdir(d))) {
3334 if (ignore_file(de->d_name))
3337 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3340 if (strlen(de->d_name) < 4)
3343 a = undecchar(de->d_name[1]);
3344 b = undecchar(de->d_name[2]);
3350 fpath = join(path, "/", de->d_name, NULL);
3356 if (access(fpath, X_OK) < 0) {
3358 if (errno != ENOENT)
3359 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3365 if (!(name = sysv_translate_name(de->d_name + 3))) {
3370 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3371 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3375 if (de->d_name[0] == 'S') {
3377 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3378 SERVICE(service)->sysv_start_priority_from_rcnd =
3379 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3381 SERVICE(service)->sysv_enabled = true;
3384 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3387 if ((r = set_put(runlevel_services[i], service)) < 0)
3390 } else if (de->d_name[0] == 'K' &&
3391 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3392 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3394 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3397 if ((r = set_put(shutdown_services, service)) < 0)
3403 /* Now we loaded all stubs and are aware of the lowest
3404 start-up priority for all services, not let's actually load
3405 the services, this will also tell us which services are
3406 actually native now */
3407 manager_dispatch_load_queue(m);
3409 /* If this is a native service, rely on native ways to pull in
3410 * a service, don't pull it in via sysv rcN.d links. */
3411 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3412 SET_FOREACH(service, runlevel_services[i], j) {
3413 service = unit_follow_merge(service);
3415 if (service->fragment_path)
3418 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3422 /* We honour K links only for halt/reboot. For the normal
3423 * runlevels we assume the stop jobs will be implicitly added
3424 * by the core logic. Also, we don't really distinguish here
3425 * between the runlevels 0 and 6 and just add them to the
3426 * special shutdown target. On SUSE the boot.d/ runlevel is
3427 * also used for shutdown, so we add links for that too to the
3428 * shutdown target.*/
3429 SET_FOREACH(service, shutdown_services, j) {
3430 service = unit_follow_merge(service);
3432 if (service->fragment_path)
3435 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3442 sysv_facility_in_insserv_conf (m);
3450 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3451 set_free(runlevel_services[i]);
3452 set_free(shutdown_services);
3461 static void service_bus_name_owner_change(
3464 const char *old_owner,
3465 const char *new_owner) {
3467 Service *s = SERVICE(u);
3472 assert(streq(s->bus_name, name));
3473 assert(old_owner || new_owner);
3475 if (old_owner && new_owner)
3476 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3478 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3480 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3482 s->bus_name_good = !!new_owner;
3484 if (s->type == SERVICE_DBUS) {
3486 /* service_enter_running() will figure out what to
3488 if (s->state == SERVICE_RUNNING)
3489 service_enter_running(s, SERVICE_SUCCESS);
3490 else if (s->state == SERVICE_START && new_owner)
3491 service_enter_start_post(s);
3493 } else if (new_owner &&
3495 (s->state == SERVICE_START ||
3496 s->state == SERVICE_START_POST ||
3497 s->state == SERVICE_RUNNING ||
3498 s->state == SERVICE_RELOAD)) {
3500 /* Try to acquire PID from bus service */
3501 log_debug("Trying to acquire PID from D-Bus name...");
3503 bus_query_pid(u->manager, name);
3507 static void service_bus_query_pid_done(
3512 Service *s = SERVICE(u);
3517 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3519 if (s->main_pid <= 0 &&
3520 (s->state == SERVICE_START ||
3521 s->state == SERVICE_START_POST ||
3522 s->state == SERVICE_RUNNING ||
3523 s->state == SERVICE_RELOAD))
3524 service_set_main_pid(s, pid);
3527 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3532 /* This is called by the socket code when instantiating a new
3533 * service for a stream socket and the socket needs to be
3536 if (UNIT(s)->load_state != UNIT_LOADED)
3539 if (s->socket_fd >= 0)
3542 if (s->state != SERVICE_DEAD)
3546 s->got_socket_fd = true;
3548 unit_ref_set(&s->accept_socket, UNIT(sock));
3550 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3553 static void service_reset_failed(Unit *u) {
3554 Service *s = SERVICE(u);
3558 if (s->state == SERVICE_FAILED)
3559 service_set_state(s, SERVICE_DEAD);
3561 s->result = SERVICE_SUCCESS;
3562 s->reload_result = SERVICE_SUCCESS;
3565 static bool service_need_daemon_reload(Unit *u) {
3566 Service *s = SERVICE(u);
3570 #ifdef HAVE_SYSV_COMPAT
3575 if (stat(s->sysv_path, &st) < 0)
3576 /* What, cannot access this anymore? */
3579 if (s->sysv_mtime > 0 &&
3580 timespec_load(&st.st_mtim) != s->sysv_mtime)
3588 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3589 Service *s = SERVICE(u);
3591 Set *pid_set = NULL;
3595 if (s->main_pid <= 0 && who == KILL_MAIN) {
3596 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3600 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3601 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3605 if (who == KILL_CONTROL || who == KILL_ALL)
3606 if (s->control_pid > 0)
3607 if (kill(s->control_pid, signo) < 0)
3610 if (who == KILL_MAIN || who == KILL_ALL)
3611 if (s->main_pid > 0)
3612 if (kill(s->main_pid, signo) < 0)
3615 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3618 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3621 /* Exclude the control/main pid from being killed via the cgroup */
3622 if (s->control_pid > 0)
3623 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3628 if (s->main_pid > 0)
3629 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3634 if ((q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
3635 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3646 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3647 [SERVICE_DEAD] = "dead",
3648 [SERVICE_START_PRE] = "start-pre",
3649 [SERVICE_START] = "start",
3650 [SERVICE_START_POST] = "start-post",
3651 [SERVICE_RUNNING] = "running",
3652 [SERVICE_EXITED] = "exited",
3653 [SERVICE_RELOAD] = "reload",
3654 [SERVICE_STOP] = "stop",
3655 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3656 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3657 [SERVICE_STOP_POST] = "stop-post",
3658 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3659 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3660 [SERVICE_FAILED] = "failed",
3661 [SERVICE_AUTO_RESTART] = "auto-restart",
3664 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3666 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3667 [SERVICE_RESTART_NO] = "no",
3668 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3669 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3670 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3671 [SERVICE_RESTART_ALWAYS] = "always"
3674 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3676 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3677 [SERVICE_SIMPLE] = "simple",
3678 [SERVICE_FORKING] = "forking",
3679 [SERVICE_ONESHOT] = "oneshot",
3680 [SERVICE_DBUS] = "dbus",
3681 [SERVICE_NOTIFY] = "notify"
3684 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3686 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3687 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3688 [SERVICE_EXEC_START] = "ExecStart",
3689 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3690 [SERVICE_EXEC_RELOAD] = "ExecReload",
3691 [SERVICE_EXEC_STOP] = "ExecStop",
3692 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3695 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3697 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3698 [NOTIFY_NONE] = "none",
3699 [NOTIFY_MAIN] = "main",
3700 [NOTIFY_ALL] = "all"
3703 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3705 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3706 [SERVICE_SUCCESS] = "success",
3707 [SERVICE_FAILURE_RESOURCES] = "resources",
3708 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3709 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3710 [SERVICE_FAILURE_SIGNAL] = "signal",
3711 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3712 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3715 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3717 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3718 [SERVICE_START_LIMIT_NONE] = "none",
3719 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3720 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3721 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3723 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3725 const UnitVTable service_vtable = {
3726 .suffix = ".service",
3727 .object_size = sizeof(Service),
3732 .show_status = true,
3734 .init = service_init,
3735 .done = service_done,
3736 .load = service_load,
3738 .coldplug = service_coldplug,
3740 .dump = service_dump,
3742 .start = service_start,
3743 .stop = service_stop,
3744 .reload = service_reload,
3746 .can_reload = service_can_reload,
3748 .kill = service_kill,
3750 .serialize = service_serialize,
3751 .deserialize_item = service_deserialize_item,
3753 .active_state = service_active_state,
3754 .sub_state_to_string = service_sub_state_to_string,
3756 .check_gc = service_check_gc,
3757 .check_snapshot = service_check_snapshot,
3759 .sigchld_event = service_sigchld_event,
3760 .timer_event = service_timer_event,
3761 .fd_event = service_fd_event,
3763 .reset_failed = service_reset_failed,
3765 .need_daemon_reload = service_need_daemon_reload,
3767 .cgroup_notify_empty = service_cgroup_notify_event,
3768 .notify_message = service_notify_message,
3770 .bus_name_owner_change = service_bus_name_owner_change,
3771 .bus_query_pid_done = service_bus_query_pid_done,
3773 .bus_interface = "org.freedesktop.systemd1.Service",
3774 .bus_message_handler = bus_service_message_handler,
3775 .bus_invalidating_properties = bus_service_invalidating_properties,
3777 #ifdef HAVE_SYSV_COMPAT
3778 .enumerate = service_enumerate