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"
41 #include "path-util.h"
45 #ifdef HAVE_SYSV_COMPAT
47 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
49 typedef enum RunlevelType {
58 const RunlevelType type;
60 /* Standard SysV runlevels for start-up */
61 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
62 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
63 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
64 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
65 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
68 /* SUSE style boot.d */
69 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
72 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
73 /* Debian style rcS.d */
74 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
77 /* Standard SysV runlevels for shutdown */
78 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
79 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
81 /* Note that the order here matters, as we read the
82 directories in this order, and we want to make sure that
83 sysv_start_priority is known when we first load the
84 unit. And that value we only know from S links. Hence
85 UP/SYSINIT must be read before DOWN */
88 #define RUNLEVELS_UP "12345"
89 /* #define RUNLEVELS_DOWN "06" */
90 #define RUNLEVELS_BOOT "bBsS"
93 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
94 [SERVICE_DEAD] = UNIT_INACTIVE,
95 [SERVICE_START_PRE] = UNIT_ACTIVATING,
96 [SERVICE_START] = UNIT_ACTIVATING,
97 [SERVICE_START_POST] = UNIT_ACTIVATING,
98 [SERVICE_RUNNING] = UNIT_ACTIVE,
99 [SERVICE_EXITED] = UNIT_ACTIVE,
100 [SERVICE_RELOAD] = UNIT_RELOADING,
101 [SERVICE_STOP] = UNIT_DEACTIVATING,
102 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
103 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
104 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
105 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
106 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
107 [SERVICE_FAILED] = UNIT_FAILED,
108 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
111 /* For Type=idle we never want to delay any other jobs, hence we
112 * consider idle jobs active as soon as we start working on them */
113 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
114 [SERVICE_DEAD] = UNIT_INACTIVE,
115 [SERVICE_START_PRE] = UNIT_ACTIVE,
116 [SERVICE_START] = UNIT_ACTIVE,
117 [SERVICE_START_POST] = UNIT_ACTIVE,
118 [SERVICE_RUNNING] = UNIT_ACTIVE,
119 [SERVICE_EXITED] = UNIT_ACTIVE,
120 [SERVICE_RELOAD] = UNIT_RELOADING,
121 [SERVICE_STOP] = UNIT_DEACTIVATING,
122 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
123 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
124 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
125 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
126 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
127 [SERVICE_FAILED] = UNIT_FAILED,
128 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
131 static void service_init(Unit *u) {
132 Service *s = SERVICE(u);
136 assert(u->load_state == UNIT_STUB);
138 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
139 s->restart_usec = DEFAULT_RESTART_USEC;
140 s->type = _SERVICE_TYPE_INVALID;
142 s->watchdog_watch.type = WATCH_INVALID;
144 s->timer_watch.type = WATCH_INVALID;
145 #ifdef HAVE_SYSV_COMPAT
146 s->sysv_start_priority = -1;
147 s->sysv_start_priority_from_rcnd = -1;
150 s->guess_main_pid = true;
152 exec_context_init(&s->exec_context);
153 for (i = 0; i < RLIMIT_NLIMITS; i++)
154 if (UNIT(s)->manager->rlimit[i])
155 s->exec_context.rlimit[i] = newdup(struct rlimit, UNIT(s)->manager->rlimit[i], 1);
157 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
159 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
162 static void service_unwatch_control_pid(Service *s) {
165 if (s->control_pid <= 0)
168 unit_unwatch_pid(UNIT(s), s->control_pid);
172 static void service_unwatch_main_pid(Service *s) {
175 if (s->main_pid <= 0)
178 unit_unwatch_pid(UNIT(s), s->main_pid);
182 static void service_unwatch_pid_file(Service *s) {
183 if (!s->pid_file_pathspec)
186 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
187 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
188 path_spec_done(s->pid_file_pathspec);
189 free(s->pid_file_pathspec);
190 s->pid_file_pathspec = NULL;
193 static int service_set_main_pid(Service *s, pid_t pid) {
205 s->main_pid_known = true;
207 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
208 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
209 UNIT(s)->id, (unsigned long) pid);
211 s->main_pid_alien = true;
213 s->main_pid_alien = false;
215 exec_status_start(&s->main_exec_status, pid);
220 static void service_close_socket_fd(Service *s) {
223 if (s->socket_fd < 0)
226 close_nointr_nofail(s->socket_fd);
230 static void service_connection_unref(Service *s) {
233 if (!UNIT_DEREF(s->accept_socket))
236 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
237 unit_ref_unset(&s->accept_socket);
240 static void service_stop_watchdog(Service *s) {
243 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
244 s->watchdog_timestamp.realtime = 0;
245 s->watchdog_timestamp.monotonic = 0;
248 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
250 static void service_handle_watchdog(Service *s) {
256 if (s->watchdog_usec == 0)
259 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
260 if (offset >= s->watchdog_usec) {
261 log_error("%s watchdog timeout!", UNIT(s)->id);
262 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
266 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
268 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
271 static void service_reset_watchdog(Service *s) {
274 dual_timestamp_get(&s->watchdog_timestamp);
275 service_handle_watchdog(s);
278 static void service_done(Unit *u) {
279 Service *s = SERVICE(u);
286 #ifdef HAVE_SYSV_COMPAT
287 free(s->sysv_runlevels);
288 s->sysv_runlevels = NULL;
291 free(s->status_text);
292 s->status_text = NULL;
294 exec_context_done(&s->exec_context);
295 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
296 s->control_command = NULL;
297 s->main_command = NULL;
299 /* This will leak a process, but at least no memory or any of
301 service_unwatch_main_pid(s);
302 service_unwatch_control_pid(s);
303 service_unwatch_pid_file(s);
306 unit_unwatch_bus_name(u, s->bus_name);
311 service_close_socket_fd(s);
312 service_connection_unref(s);
314 unit_ref_unset(&s->accept_socket);
316 service_stop_watchdog(s);
318 unit_unwatch_timer(u, &s->timer_watch);
321 #ifdef HAVE_SYSV_COMPAT
322 static char *sysv_translate_name(const char *name) {
325 if (!(r = new(char, strlen(name) + sizeof(".service"))))
328 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
329 if (endswith(name, ".sh"))
330 /* Drop Debian-style .sh suffix */
331 strcpy(stpcpy(r, name) - 3, ".service");
334 if (startswith(name, "boot."))
335 /* Drop SuSE-style boot. prefix */
336 strcpy(stpcpy(r, name + 5), ".service");
338 #ifdef TARGET_FRUGALWARE
339 if (startswith(name, "rc."))
340 /* Drop Frugalware-style rc. prefix */
341 strcpy(stpcpy(r, name + 3), ".service");
344 /* Normal init scripts */
345 strcpy(stpcpy(r, name), ".service");
350 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
352 /* We silently ignore the $ prefix here. According to the LSB
353 * spec it simply indicates whether something is a
354 * standardized name or a distribution-specific one. Since we
355 * just follow what already exists and do not introduce new
356 * uses or names we don't care who introduced a new name. */
358 static const char * const table[] = {
359 /* LSB defined facilities */
360 "local_fs", SPECIAL_LOCAL_FS_TARGET,
361 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
363 /* Due to unfortunate name selection in Mandriva,
364 * $network is provided by network-up which is ordered
365 * after network which actually starts interfaces.
366 * To break the loop, just ignore it */
367 "network", SPECIAL_NETWORK_TARGET,
369 "named", SPECIAL_NSS_LOOKUP_TARGET,
370 "portmap", SPECIAL_RPCBIND_TARGET,
371 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
372 "syslog", SPECIAL_SYSLOG_TARGET,
373 "time", SPECIAL_TIME_SYNC_TARGET,
375 /* common extensions */
376 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
377 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
380 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
381 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
385 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
386 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
387 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
391 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
402 n = *name == '$' ? name + 1 : name;
404 for (i = 0; i < ELEMENTSOF(table); i += 2) {
406 if (!streq(table[i], n))
412 if (!(r = strdup(table[i+1])))
418 /* If we don't know this name, fallback heuristics to figure
419 * out whether something is a target or a service alias. */
422 if (!unit_prefix_is_valid(n))
425 /* Facilities starting with $ are most likely targets */
426 r = unit_name_build(n, NULL, ".target");
427 } else if (filename && streq(name, filename))
428 /* Names equaling the file name of the services are redundant */
431 /* Everything else we assume to be normal service names */
432 r = sysv_translate_name(n);
443 static int sysv_fix_order(Service *s) {
449 if (s->sysv_start_priority < 0)
452 /* For each pair of services where at least one lacks a LSB
453 * header, we use the start priority value to order things. */
455 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
458 bool special_s, special_t;
465 if (UNIT(t)->load_state != UNIT_LOADED)
468 if (t->sysv_start_priority < 0)
471 /* If both units have modern headers we don't care
472 * about the priorities */
473 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
474 (UNIT(t)->fragment_path || t->sysv_has_lsb))
477 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
478 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
480 if (special_t && !special_s)
482 else if (special_s && !special_t)
484 else if (t->sysv_start_priority < s->sysv_start_priority)
486 else if (t->sysv_start_priority > s->sysv_start_priority)
491 /* FIXME: Maybe we should compare the name here lexicographically? */
493 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
500 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
503 if (!(c = new0(ExecCommand, 1)))
506 if (!(c->path = strdup(path))) {
511 if (!(c->argv = strv_new(path, arg1, NULL))) {
520 static int sysv_exec_commands(Service *s) {
525 assert(UNIT(s)->source_path);
527 c = exec_command_new(UNIT(s)->source_path, "start");
530 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
532 c = exec_command_new(UNIT(s)->source_path, "stop");
535 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
537 c = exec_command_new(UNIT(s)->source_path, "reload");
540 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
545 static int service_load_sysv_path(Service *s, const char *path) {
556 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
564 f = fopen(path, "re");
566 r = errno == ENOENT ? 0 : -errno;
571 if (fstat(fileno(f), &st) < 0) {
576 free(u->source_path);
577 u->source_path = strdup(path);
578 if (!u->source_path) {
582 u->source_mtime = timespec_load(&st.st_mtim);
584 if (null_or_empty(&st)) {
585 u->load_state = UNIT_MASKED;
593 char l[LINE_MAX], *t;
595 if (!fgets(l, sizeof(l), f)) {
600 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
610 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
612 s->sysv_has_lsb = true;
616 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
622 t += strspn(t, WHITESPACE);
624 if (state == NORMAL) {
626 /* Try to parse Red Hat style chkconfig headers */
628 if (startswith_no_case(t, "chkconfig:")) {
630 char runlevels[16], *k;
634 if (sscanf(t+10, "%15s %i %*i",
636 &start_priority) != 2) {
638 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
642 /* A start priority gathered from the
643 * symlink farms is preferred over the
644 * data from the LSB header. */
645 if (start_priority < 0 || start_priority > 99)
646 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
648 s->sysv_start_priority = start_priority;
650 char_array_0(runlevels);
651 k = delete_chars(runlevels, WHITESPACE "-");
656 if (!(d = strdup(k))) {
661 free(s->sysv_runlevels);
662 s->sysv_runlevels = d;
665 } else if (startswith_no_case(t, "description:")) {
667 size_t k = strlen(t);
671 if (t[k-1] == '\\') {
676 if ((j = strstrip(t+12)) && *j) {
677 if (!(d = strdup(j))) {
684 free(chkconfig_description);
685 chkconfig_description = d;
687 } else if (startswith_no_case(t, "pidfile:")) {
694 if (!path_is_absolute(fn)) {
695 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
699 if (!(fn = strdup(fn))) {
708 } else if (state == DESCRIPTION) {
710 /* Try to parse Red Hat style description
713 size_t k = strlen(t);
721 if ((j = strstrip(t)) && *j) {
724 if (chkconfig_description)
725 d = strjoin(chkconfig_description, " ", j, NULL);
734 free(chkconfig_description);
735 chkconfig_description = d;
738 } else if (state == LSB || state == LSB_DESCRIPTION) {
740 if (startswith_no_case(t, "Provides:")) {
746 FOREACH_WORD_QUOTED(w, z, t+9, i) {
749 if (!(n = strndup(w, z))) {
754 r = sysv_translate_facility(n, path_get_file_name(path), &m);
763 if (unit_name_to_type(m) == UNIT_SERVICE)
764 r = unit_add_name(u, m);
771 * indication that the
773 * now available. This
776 * targets do NOT pull
779 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
782 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
787 } else if (startswith_no_case(t, "Required-Start:") ||
788 startswith_no_case(t, "Should-Start:") ||
789 startswith_no_case(t, "X-Start-Before:") ||
790 startswith_no_case(t, "X-Start-After:")) {
796 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
799 if (!(n = strndup(w, z))) {
804 r = sysv_translate_facility(n, path_get_file_name(path), &m);
807 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
817 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
820 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
824 } else if (startswith_no_case(t, "Default-Start:")) {
829 k = delete_chars(t+14, WHITESPACE "-");
832 if (!(d = strdup(k))) {
837 free(s->sysv_runlevels);
838 s->sysv_runlevels = d;
841 } else if (startswith_no_case(t, "Description:")) {
844 state = LSB_DESCRIPTION;
846 if ((j = strstrip(t+12)) && *j) {
847 if (!(d = strdup(j))) {
854 free(long_description);
855 long_description = d;
857 } else if (startswith_no_case(t, "Short-Description:")) {
862 if ((j = strstrip(t+18)) && *j) {
863 if (!(d = strdup(j))) {
870 free(short_description);
871 short_description = d;
873 } else if (state == LSB_DESCRIPTION) {
875 if (startswith(l, "#\t") || startswith(l, "# ")) {
878 if ((j = strstrip(t)) && *j) {
881 if (long_description)
882 d = strjoin(long_description, " ", t, NULL);
891 free(long_description);
892 long_description = d;
901 if ((r = sysv_exec_commands(s)) < 0)
903 if (s->sysv_runlevels &&
904 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
905 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
906 /* Service has both boot and "up" runlevels
907 configured. Kill the "up" ones. */
908 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
911 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
912 /* If there a runlevels configured for this service
913 * but none of the standard ones, then we assume this
914 * is some special kind of service (which might be
915 * needed for early boot) and don't create any links
918 UNIT(s)->default_dependencies = false;
920 /* Don't timeout special services during boot (like fsck) */
923 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
925 /* Special setting for all SysV services */
926 s->type = SERVICE_FORKING;
927 s->remain_after_exit = !s->pid_file;
928 s->guess_main_pid = false;
929 s->restart = SERVICE_RESTART_NO;
930 s->exec_context.ignore_sigpipe = false;
931 s->exec_context.kill_mode = KILL_PROCESS;
933 /* We use the long description only if
934 * no short description is set. */
936 if (short_description)
937 description = short_description;
938 else if (chkconfig_description)
939 description = chkconfig_description;
940 else if (long_description)
941 description = long_description;
948 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
956 /* The priority that has been set in /etc/rcN.d/ hierarchies
957 * takes precedence over what is stored as default in the LSB
959 if (s->sysv_start_priority_from_rcnd >= 0)
960 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
962 u->load_state = UNIT_LOADED;
970 free(short_description);
971 free(long_description);
972 free(chkconfig_description);
977 static int service_load_sysv_name(Service *s, const char *name) {
983 /* For SysV services we strip the boot.*, rc.* and *.sh
984 * prefixes/suffixes. */
985 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
986 if (endswith(name, ".sh.service"))
991 if (startswith(name, "boot."))
995 #ifdef TARGET_FRUGALWARE
996 if (startswith(name, "rc."))
1000 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
1004 path = strjoin(*p, "/", name, NULL);
1008 assert(endswith(path, ".service"));
1009 path[strlen(path)-8] = 0;
1011 r = service_load_sysv_path(s, path);
1013 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1014 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1015 /* Try Debian style *.sh source'able init scripts */
1016 strcat(path, ".sh");
1017 r = service_load_sysv_path(s, path);
1023 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1024 /* Try SUSE style boot.* init scripts */
1026 path = strjoin(*p, "/boot.", name, NULL);
1030 /* Drop .service suffix */
1031 path[strlen(path)-8] = 0;
1032 r = service_load_sysv_path(s, path);
1037 #ifdef TARGET_FRUGALWARE
1038 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1039 /* Try Frugalware style rc.* init scripts */
1041 path = strjoin(*p, "/rc.", name, NULL);
1045 /* Drop .service suffix */
1046 path[strlen(path)-8] = 0;
1047 r = service_load_sysv_path(s, path);
1055 if ((UNIT(s)->load_state != UNIT_STUB))
1062 static int service_load_sysv(Service *s) {
1069 /* Load service data from SysV init scripts, preferably with
1070 * LSB headers ... */
1072 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1075 if ((t = UNIT(s)->id))
1076 if ((r = service_load_sysv_name(s, t)) < 0)
1079 if (UNIT(s)->load_state == UNIT_STUB)
1080 SET_FOREACH(t, UNIT(s)->names, i) {
1081 if (t == UNIT(s)->id)
1084 if ((r = service_load_sysv_name(s, t)) < 0)
1087 if (UNIT(s)->load_state != UNIT_STUB)
1095 static int fsck_fix_order(Service *s) {
1101 if (s->fsck_passno <= 0)
1104 /* For each pair of services where both have an fsck priority
1105 * we order things based on it. */
1107 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1116 if (UNIT(t)->load_state != UNIT_LOADED)
1119 if (t->fsck_passno <= 0)
1122 if (t->fsck_passno < s->fsck_passno)
1124 else if (t->fsck_passno > s->fsck_passno)
1129 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1136 static int service_verify(Service *s) {
1139 if (UNIT(s)->load_state != UNIT_LOADED)
1142 if (!s->exec_command[SERVICE_EXEC_START]) {
1143 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1147 if (s->type != SERVICE_ONESHOT &&
1148 s->exec_command[SERVICE_EXEC_START]->command_next) {
1149 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1153 if (s->type == SERVICE_ONESHOT &&
1154 s->exec_command[SERVICE_EXEC_RELOAD]) {
1155 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1159 if (s->type == SERVICE_DBUS && !s->bus_name) {
1160 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1164 if (s->bus_name && s->type != SERVICE_DBUS)
1165 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1167 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1168 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1175 static int service_add_default_dependencies(Service *s) {
1180 /* Add a number of automatic dependencies useful for the
1181 * majority of services. */
1183 /* First, pull in base system */
1184 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
1186 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1189 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
1191 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1195 /* Second, activate normal shutdown */
1196 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1199 static void service_fix_output(Service *s) {
1202 /* If nothing has been explicitly configured, patch default
1203 * output in. If input is socket/tty we avoid this however,
1204 * since in that case we want output to default to the same
1205 * place as we read input from. */
1207 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1208 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1209 s->exec_context.std_input == EXEC_INPUT_NULL)
1210 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1212 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1213 s->exec_context.std_input == EXEC_INPUT_NULL)
1214 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1217 static int service_load(Unit *u) {
1219 Service *s = SERVICE(u);
1223 /* Load a .service file */
1224 if ((r = unit_load_fragment(u)) < 0)
1227 #ifdef HAVE_SYSV_COMPAT
1228 /* Load a classic init script as a fallback, if we couldn't find anything */
1229 if (u->load_state == UNIT_STUB)
1230 if ((r = service_load_sysv(s)) < 0)
1234 /* Still nothing found? Then let's give up */
1235 if (u->load_state == UNIT_STUB)
1238 /* We were able to load something, then let's add in the
1239 * dropin directories. */
1240 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1243 /* This is a new unit? Then let's add in some extras */
1244 if (u->load_state == UNIT_LOADED) {
1245 if (s->type == _SERVICE_TYPE_INVALID)
1246 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1248 /* Oneshot services have disabled timeout by default */
1249 if (s->type == SERVICE_ONESHOT && !s->timeout_defined)
1250 s->timeout_usec = 0;
1252 service_fix_output(s);
1254 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1257 if ((r = unit_add_default_cgroups(u)) < 0)
1260 #ifdef HAVE_SYSV_COMPAT
1261 if ((r = sysv_fix_order(s)) < 0)
1265 if ((r = fsck_fix_order(s)) < 0)
1269 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1272 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1273 s->notify_access = NOTIFY_MAIN;
1275 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1276 s->notify_access = NOTIFY_MAIN;
1278 if (s->type == SERVICE_DBUS || s->bus_name)
1279 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1282 if (UNIT(s)->default_dependencies)
1283 if ((r = service_add_default_dependencies(s)) < 0)
1287 return service_verify(s);
1290 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1292 ServiceExecCommand c;
1293 Service *s = SERVICE(u);
1294 const char *prefix2;
1299 p2 = strappend(prefix, "\t");
1300 prefix2 = p2 ? p2 : prefix;
1303 "%sService State: %s\n"
1305 "%sReload Result: %s\n"
1306 "%sPermissionsStartOnly: %s\n"
1307 "%sRootDirectoryStartOnly: %s\n"
1308 "%sRemainAfterExit: %s\n"
1309 "%sGuessMainPID: %s\n"
1312 "%sNotifyAccess: %s\n",
1313 prefix, service_state_to_string(s->state),
1314 prefix, service_result_to_string(s->result),
1315 prefix, service_result_to_string(s->reload_result),
1316 prefix, yes_no(s->permissions_start_only),
1317 prefix, yes_no(s->root_directory_start_only),
1318 prefix, yes_no(s->remain_after_exit),
1319 prefix, yes_no(s->guess_main_pid),
1320 prefix, service_type_to_string(s->type),
1321 prefix, service_restart_to_string(s->restart),
1322 prefix, notify_access_to_string(s->notify_access));
1324 if (s->control_pid > 0)
1326 "%sControl PID: %lu\n",
1327 prefix, (unsigned long) s->control_pid);
1329 if (s->main_pid > 0)
1332 "%sMain PID Known: %s\n"
1333 "%sMain PID Alien: %s\n",
1334 prefix, (unsigned long) s->main_pid,
1335 prefix, yes_no(s->main_pid_known),
1336 prefix, yes_no(s->main_pid_alien));
1341 prefix, s->pid_file);
1346 "%sBus Name Good: %s\n",
1347 prefix, s->bus_name,
1348 prefix, yes_no(s->bus_name_good));
1350 exec_context_dump(&s->exec_context, f, prefix);
1352 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1354 if (!s->exec_command[c])
1357 fprintf(f, "%s-> %s:\n",
1358 prefix, service_exec_command_to_string(c));
1360 exec_command_dump_list(s->exec_command[c], f, prefix2);
1363 #ifdef HAVE_SYSV_COMPAT
1366 "%sSysV Init Script has LSB Header: %s\n"
1367 "%sSysVEnabled: %s\n",
1368 prefix, yes_no(s->sysv_has_lsb),
1369 prefix, yes_no(s->sysv_enabled));
1371 if (s->sysv_start_priority >= 0)
1373 "%sSysVStartPriority: %i\n",
1374 prefix, s->sysv_start_priority);
1376 if (s->sysv_runlevels)
1377 fprintf(f, "%sSysVRunLevels: %s\n",
1378 prefix, s->sysv_runlevels);
1381 if (s->fsck_passno > 0)
1383 "%sFsckPassNo: %i\n",
1384 prefix, s->fsck_passno);
1387 fprintf(f, "%sStatus Text: %s\n",
1388 prefix, s->status_text);
1393 static int service_load_pid_file(Service *s, bool may_warn) {
1403 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1405 log_info("PID file %s not readable (yet?) after %s.",
1406 s->pid_file, service_state_to_string(s->state));
1410 r = parse_pid(k, &pid);
1416 if (kill(pid, 0) < 0 && errno != EPERM) {
1418 log_info("PID %lu read from file %s does not exist.",
1419 (unsigned long) pid, s->pid_file);
1423 if (s->main_pid_known) {
1424 if (pid == s->main_pid)
1427 log_debug("Main PID changing: %lu -> %lu",
1428 (unsigned long) s->main_pid, (unsigned long) pid);
1429 service_unwatch_main_pid(s);
1430 s->main_pid_known = false;
1432 log_debug("Main PID loaded: %lu", (unsigned long) pid);
1434 if ((r = service_set_main_pid(s, pid)) < 0)
1437 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1438 /* FIXME: we need to do something here */
1444 static int service_search_main_pid(Service *s) {
1450 /* If we know it anyway, don't ever fallback to unreliable
1452 if (s->main_pid_known)
1455 if (!s->guess_main_pid)
1458 assert(s->main_pid <= 0);
1460 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1463 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1464 if ((r = service_set_main_pid(s, pid)) < 0)
1467 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1468 /* FIXME: we need to do something here */
1474 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1480 /* Notifies all our sockets when we die */
1482 if (s->socket_fd >= 0)
1485 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1486 if (u->type == UNIT_SOCKET)
1487 socket_notify_service_dead(SOCKET(u), failed_permanent);
1492 static void service_set_state(Service *s, ServiceState state) {
1493 ServiceState old_state;
1494 const UnitActiveState *table;
1497 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1499 old_state = s->state;
1502 service_unwatch_pid_file(s);
1504 if (state != SERVICE_START_PRE &&
1505 state != SERVICE_START &&
1506 state != SERVICE_START_POST &&
1507 state != SERVICE_RELOAD &&
1508 state != SERVICE_STOP &&
1509 state != SERVICE_STOP_SIGTERM &&
1510 state != SERVICE_STOP_SIGKILL &&
1511 state != SERVICE_STOP_POST &&
1512 state != SERVICE_FINAL_SIGTERM &&
1513 state != SERVICE_FINAL_SIGKILL &&
1514 state != SERVICE_AUTO_RESTART)
1515 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1517 if (state != SERVICE_START &&
1518 state != SERVICE_START_POST &&
1519 state != SERVICE_RUNNING &&
1520 state != SERVICE_RELOAD &&
1521 state != SERVICE_STOP &&
1522 state != SERVICE_STOP_SIGTERM &&
1523 state != SERVICE_STOP_SIGKILL) {
1524 service_unwatch_main_pid(s);
1525 s->main_command = NULL;
1528 if (state != SERVICE_START_PRE &&
1529 state != SERVICE_START &&
1530 state != SERVICE_START_POST &&
1531 state != SERVICE_RELOAD &&
1532 state != SERVICE_STOP &&
1533 state != SERVICE_STOP_SIGTERM &&
1534 state != SERVICE_STOP_SIGKILL &&
1535 state != SERVICE_STOP_POST &&
1536 state != SERVICE_FINAL_SIGTERM &&
1537 state != SERVICE_FINAL_SIGKILL) {
1538 service_unwatch_control_pid(s);
1539 s->control_command = NULL;
1540 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1543 if (state == SERVICE_DEAD ||
1544 state == SERVICE_STOP ||
1545 state == SERVICE_STOP_SIGTERM ||
1546 state == SERVICE_STOP_SIGKILL ||
1547 state == SERVICE_STOP_POST ||
1548 state == SERVICE_FINAL_SIGTERM ||
1549 state == SERVICE_FINAL_SIGKILL ||
1550 state == SERVICE_FAILED ||
1551 state == SERVICE_AUTO_RESTART)
1552 service_notify_sockets_dead(s, false);
1554 if (state != SERVICE_START_PRE &&
1555 state != SERVICE_START &&
1556 state != SERVICE_START_POST &&
1557 state != SERVICE_RUNNING &&
1558 state != SERVICE_RELOAD &&
1559 state != SERVICE_STOP &&
1560 state != SERVICE_STOP_SIGTERM &&
1561 state != SERVICE_STOP_SIGKILL &&
1562 state != SERVICE_STOP_POST &&
1563 state != SERVICE_FINAL_SIGTERM &&
1564 state != SERVICE_FINAL_SIGKILL &&
1565 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1566 service_close_socket_fd(s);
1567 service_connection_unref(s);
1570 if (state == SERVICE_STOP)
1571 service_stop_watchdog(s);
1573 /* For the inactive states unit_notify() will trim the cgroup,
1574 * but for exit we have to do that ourselves... */
1575 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1576 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1578 if (old_state != state)
1579 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1581 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1582 s->reload_result = SERVICE_SUCCESS;
1585 static int service_coldplug(Unit *u) {
1586 Service *s = SERVICE(u);
1590 assert(s->state == SERVICE_DEAD);
1592 if (s->deserialized_state != s->state) {
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 s->deserialized_state == SERVICE_AUTO_RESTART) {
1606 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1609 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1611 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1616 if ((s->deserialized_state == SERVICE_START &&
1617 (s->type == SERVICE_FORKING ||
1618 s->type == SERVICE_DBUS ||
1619 s->type == SERVICE_ONESHOT ||
1620 s->type == SERVICE_NOTIFY)) ||
1621 s->deserialized_state == SERVICE_START_POST ||
1622 s->deserialized_state == SERVICE_RUNNING ||
1623 s->deserialized_state == SERVICE_RELOAD ||
1624 s->deserialized_state == SERVICE_STOP ||
1625 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1626 s->deserialized_state == SERVICE_STOP_SIGKILL)
1627 if (s->main_pid > 0)
1628 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1631 if (s->deserialized_state == SERVICE_START_PRE ||
1632 s->deserialized_state == SERVICE_START ||
1633 s->deserialized_state == SERVICE_START_POST ||
1634 s->deserialized_state == SERVICE_RELOAD ||
1635 s->deserialized_state == SERVICE_STOP ||
1636 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1637 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1638 s->deserialized_state == SERVICE_STOP_POST ||
1639 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1640 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1641 if (s->control_pid > 0)
1642 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1645 if (s->deserialized_state == SERVICE_START_POST ||
1646 s->deserialized_state == SERVICE_RUNNING)
1647 service_handle_watchdog(s);
1649 service_set_state(s, s->deserialized_state);
1654 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1658 unsigned rn_fds = 0;
1665 if (s->socket_fd >= 0)
1668 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1673 if (u->type != UNIT_SOCKET)
1678 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1690 if (!(t = new(int, rn_fds+cn_fds))) {
1696 memcpy(t, rfds, rn_fds * sizeof(int));
1697 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1702 rn_fds = rn_fds+cn_fds;
1717 static int service_spawn(
1722 bool apply_permissions,
1724 bool apply_tty_stdin,
1725 bool set_notify_socket,
1731 int *fds = NULL, *fdsbuf = NULL;
1732 unsigned n_fds = 0, n_env = 0;
1733 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1740 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1741 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1742 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1744 if (s->socket_fd >= 0) {
1745 fds = &s->socket_fd;
1748 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1755 if (timeout && s->timeout_usec) {
1756 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1759 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1761 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1766 if (!(our_env = new0(char*, 4))) {
1771 if (set_notify_socket)
1772 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1777 if (s->main_pid > 0)
1778 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1783 if (s->watchdog_usec > 0)
1784 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1789 if (!(final_env = strv_env_merge(2,
1790 UNIT(s)->manager->environment,
1805 UNIT(s)->manager->confirm_spawn,
1806 UNIT(s)->cgroup_bondings,
1807 UNIT(s)->cgroup_attributes,
1808 is_control ? "control" : NULL,
1810 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1817 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1818 /* FIXME: we need to do something here */
1824 strv_free(final_env);
1834 strv_free(final_env);
1837 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1842 static int main_pid_good(Service *s) {
1845 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1848 /* If we know the pid file, then lets just check if it is
1850 if (s->main_pid_known) {
1852 /* If it's an alien child let's check if it is still
1854 if (s->main_pid_alien)
1855 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1857 /* .. otherwise assume we'll get a SIGCHLD for it,
1858 * which we really should wait for to collect exit
1859 * status and code */
1860 return s->main_pid > 0;
1863 /* We don't know the pid */
1867 static int control_pid_good(Service *s) {
1870 return s->control_pid > 0;
1873 static int cgroup_good(Service *s) {
1878 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1884 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1888 if (f != SERVICE_SUCCESS)
1891 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1893 if (allow_restart &&
1894 !s->forbid_restart &&
1895 (s->restart == SERVICE_RESTART_ALWAYS ||
1896 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1897 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1898 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1899 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1901 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1905 service_set_state(s, SERVICE_AUTO_RESTART);
1908 s->forbid_restart = false;
1913 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1914 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1917 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1919 static void service_enter_stop_post(Service *s, ServiceResult f) {
1923 if (f != SERVICE_SUCCESS)
1926 service_unwatch_control_pid(s);
1928 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1929 s->control_command_id = SERVICE_EXEC_STOP_POST;
1931 r = service_spawn(s,
1935 !s->permissions_start_only,
1936 !s->root_directory_start_only,
1945 service_set_state(s, SERVICE_STOP_POST);
1947 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1952 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1953 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1956 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1958 Set *pid_set = NULL;
1959 bool wait_for_exit = false;
1963 if (f != SERVICE_SUCCESS)
1966 if (s->exec_context.kill_mode != KILL_NONE) {
1967 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1969 if (s->main_pid > 0) {
1970 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1971 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1973 wait_for_exit = !s->main_pid_alien;
1976 if (s->control_pid > 0) {
1977 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1978 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1980 wait_for_exit = true;
1983 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1985 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1990 /* Exclude the main/control pids from being killed via the cgroup */
1991 if (s->main_pid > 0)
1992 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1995 if (s->control_pid > 0)
1996 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1999 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
2001 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2002 log_warning("Failed to kill control group: %s", strerror(-r));
2004 wait_for_exit = true;
2011 if (wait_for_exit) {
2012 if (s->timeout_usec > 0)
2013 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
2016 service_set_state(s, state);
2017 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2018 service_enter_stop_post(s, SERVICE_SUCCESS);
2020 service_enter_dead(s, SERVICE_SUCCESS, true);
2025 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2027 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2028 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2030 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2036 static void service_enter_stop(Service *s, ServiceResult f) {
2041 if (f != SERVICE_SUCCESS)
2044 service_unwatch_control_pid(s);
2046 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2047 s->control_command_id = SERVICE_EXEC_STOP;
2049 r = service_spawn(s,
2053 !s->permissions_start_only,
2054 !s->root_directory_start_only,
2062 service_set_state(s, SERVICE_STOP);
2064 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2069 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2070 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2073 static void service_enter_running(Service *s, ServiceResult f) {
2074 int main_pid_ok, cgroup_ok;
2077 if (f != SERVICE_SUCCESS)
2080 main_pid_ok = main_pid_good(s);
2081 cgroup_ok = cgroup_good(s);
2083 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2084 (s->bus_name_good || s->type != SERVICE_DBUS))
2085 service_set_state(s, SERVICE_RUNNING);
2086 else if (s->remain_after_exit)
2087 service_set_state(s, SERVICE_EXITED);
2089 service_enter_stop(s, SERVICE_SUCCESS);
2092 static void service_enter_start_post(Service *s) {
2096 service_unwatch_control_pid(s);
2098 if (s->watchdog_usec > 0)
2099 service_reset_watchdog(s);
2101 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2102 s->control_command_id = SERVICE_EXEC_START_POST;
2104 r = service_spawn(s,
2108 !s->permissions_start_only,
2109 !s->root_directory_start_only,
2117 service_set_state(s, SERVICE_START_POST);
2119 service_enter_running(s, SERVICE_SUCCESS);
2124 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2125 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2128 static void service_enter_start(Service *s) {
2135 assert(s->exec_command[SERVICE_EXEC_START]);
2136 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2138 if (s->type == SERVICE_FORKING)
2139 service_unwatch_control_pid(s);
2141 service_unwatch_main_pid(s);
2143 /* We want to ensure that nobody leaks processes from
2144 * START_PRE here, so let's go on a killing spree, People
2145 * should not spawn long running processes from START_PRE. */
2146 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2148 if (s->type == SERVICE_FORKING) {
2149 s->control_command_id = SERVICE_EXEC_START;
2150 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2152 s->main_command = NULL;
2154 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2155 s->control_command = NULL;
2157 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2160 r = service_spawn(s,
2162 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2167 s->notify_access != NOTIFY_NONE,
2173 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2174 /* For simple services we immediately start
2175 * the START_POST binaries. */
2177 service_set_main_pid(s, pid);
2178 service_enter_start_post(s);
2180 } else if (s->type == SERVICE_FORKING) {
2182 /* For forking services we wait until the start
2183 * process exited. */
2185 s->control_pid = pid;
2186 service_set_state(s, SERVICE_START);
2188 } else if (s->type == SERVICE_ONESHOT ||
2189 s->type == SERVICE_DBUS ||
2190 s->type == SERVICE_NOTIFY) {
2192 /* For oneshot services we wait until the start
2193 * process exited, too, but it is our main process. */
2195 /* For D-Bus services we know the main pid right away,
2196 * but wait for the bus name to appear on the
2197 * bus. Notify services are similar. */
2199 service_set_main_pid(s, pid);
2200 service_set_state(s, SERVICE_START);
2202 assert_not_reached("Unknown service type");
2207 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2208 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2211 static void service_enter_start_pre(Service *s) {
2216 service_unwatch_control_pid(s);
2218 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2220 /* Before we start anything, let's clear up what might
2221 * be left from previous runs. */
2222 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2224 s->control_command_id = SERVICE_EXEC_START_PRE;
2226 r = service_spawn(s,
2230 !s->permissions_start_only,
2231 !s->root_directory_start_only,
2239 service_set_state(s, SERVICE_START_PRE);
2241 service_enter_start(s);
2246 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2247 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2250 static void service_enter_restart(Service *s) {
2255 dbus_error_init(&error);
2258 log_info("Job pending for unit, delaying automatic restart.");
2260 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2266 /* Any units that are bound to this service must also be
2267 * restarted. We use JOB_RESTART (instead of the more obvious
2268 * JOB_START) here so that those dependency jobs will be added
2270 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2274 log_debug("%s scheduled restart job.", UNIT(s)->id);
2278 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2279 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2281 dbus_error_free(&error);
2284 static void service_enter_reload(Service *s) {
2289 service_unwatch_control_pid(s);
2291 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2292 s->control_command_id = SERVICE_EXEC_RELOAD;
2294 r = service_spawn(s,
2298 !s->permissions_start_only,
2299 !s->root_directory_start_only,
2307 service_set_state(s, SERVICE_RELOAD);
2309 service_enter_running(s, SERVICE_SUCCESS);
2314 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2315 s->reload_result = SERVICE_FAILURE_RESOURCES;
2316 service_enter_running(s, SERVICE_SUCCESS);
2319 static void service_run_next_control(Service *s) {
2323 assert(s->control_command);
2324 assert(s->control_command->command_next);
2326 assert(s->control_command_id != SERVICE_EXEC_START);
2328 s->control_command = s->control_command->command_next;
2329 service_unwatch_control_pid(s);
2331 r = service_spawn(s,
2335 !s->permissions_start_only,
2336 !s->root_directory_start_only,
2337 s->control_command_id == SERVICE_EXEC_START_PRE ||
2338 s->control_command_id == SERVICE_EXEC_STOP_POST,
2348 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2350 if (s->state == SERVICE_START_PRE)
2351 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2352 else if (s->state == SERVICE_STOP)
2353 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2354 else if (s->state == SERVICE_STOP_POST)
2355 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2356 else if (s->state == SERVICE_RELOAD) {
2357 s->reload_result = SERVICE_FAILURE_RESOURCES;
2358 service_enter_running(s, SERVICE_SUCCESS);
2360 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2363 static void service_run_next_main(Service *s) {
2368 assert(s->main_command);
2369 assert(s->main_command->command_next);
2370 assert(s->type == SERVICE_ONESHOT);
2372 s->main_command = s->main_command->command_next;
2373 service_unwatch_main_pid(s);
2375 r = service_spawn(s,
2382 s->notify_access != NOTIFY_NONE,
2388 service_set_main_pid(s, pid);
2393 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2394 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2397 static int service_start_limit_test(Service *s) {
2400 if (ratelimit_test(&s->start_limit))
2403 switch (s->start_limit_action) {
2405 case SERVICE_START_LIMIT_NONE:
2406 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2409 case SERVICE_START_LIMIT_REBOOT: {
2413 dbus_error_init(&error);
2415 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2417 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2419 log_error("Failed to reboot: %s.", bus_error(&error, r));
2420 dbus_error_free(&error);
2426 case SERVICE_START_LIMIT_REBOOT_FORCE:
2427 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2428 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2431 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2432 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2433 reboot(RB_AUTOBOOT);
2437 log_error("start limit action=%i", s->start_limit_action);
2438 assert_not_reached("Unknown StartLimitAction.");
2444 static int service_start(Unit *u) {
2445 Service *s = SERVICE(u);
2450 /* We cannot fulfill this request right now, try again later
2452 if (s->state == SERVICE_STOP ||
2453 s->state == SERVICE_STOP_SIGTERM ||
2454 s->state == SERVICE_STOP_SIGKILL ||
2455 s->state == SERVICE_STOP_POST ||
2456 s->state == SERVICE_FINAL_SIGTERM ||
2457 s->state == SERVICE_FINAL_SIGKILL)
2460 /* Already on it! */
2461 if (s->state == SERVICE_START_PRE ||
2462 s->state == SERVICE_START ||
2463 s->state == SERVICE_START_POST)
2466 /* A service that will be restarted must be stopped first to
2467 * trigger BindTo and/or OnFailure dependencies. If a user
2468 * does not want to wait for the holdoff time to elapse, the
2469 * service should be manually restarted, not started. */
2470 if (s->state == SERVICE_AUTO_RESTART) {
2471 log_warning("%s automatic restart is pending, must be stopped before issuing start request.", UNIT(s)->id);
2475 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2477 /* Make sure we don't enter a busy loop of some kind. */
2478 r = service_start_limit_test(s);
2480 service_notify_sockets_dead(s, true);
2484 s->result = SERVICE_SUCCESS;
2485 s->reload_result = SERVICE_SUCCESS;
2486 s->main_pid_known = false;
2487 s->main_pid_alien = false;
2488 s->forbid_restart = false;
2490 service_enter_start_pre(s);
2494 static int service_stop(Unit *u) {
2495 Service *s = SERVICE(u);
2499 /* Don't create restart jobs from here. */
2500 s->forbid_restart = true;
2503 if (s->state == SERVICE_STOP ||
2504 s->state == SERVICE_STOP_SIGTERM ||
2505 s->state == SERVICE_STOP_SIGKILL ||
2506 s->state == SERVICE_STOP_POST ||
2507 s->state == SERVICE_FINAL_SIGTERM ||
2508 s->state == SERVICE_FINAL_SIGKILL)
2511 /* A restart will be scheduled or is in progress. */
2512 if (s->state == SERVICE_AUTO_RESTART) {
2513 service_set_state(s, SERVICE_DEAD);
2517 /* If there's already something running we go directly into
2519 if (s->state == SERVICE_START_PRE ||
2520 s->state == SERVICE_START ||
2521 s->state == SERVICE_START_POST ||
2522 s->state == SERVICE_RELOAD) {
2523 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2527 assert(s->state == SERVICE_RUNNING ||
2528 s->state == SERVICE_EXITED);
2530 service_enter_stop(s, SERVICE_SUCCESS);
2534 static int service_reload(Unit *u) {
2535 Service *s = SERVICE(u);
2539 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2541 service_enter_reload(s);
2545 static bool service_can_reload(Unit *u) {
2546 Service *s = SERVICE(u);
2550 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2553 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2554 Service *s = SERVICE(u);
2560 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2561 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2562 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2564 if (s->control_pid > 0)
2565 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2567 if (s->main_pid_known && s->main_pid > 0)
2568 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2570 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2573 unit_serialize_item(u, f, "status-text", s->status_text);
2575 /* FIXME: There's a minor uncleanliness here: if there are
2576 * multiple commands attached here, we will start from the
2577 * first one again */
2578 if (s->control_command_id >= 0)
2579 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2581 if (s->socket_fd >= 0) {
2584 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2587 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2590 if (s->main_exec_status.pid > 0) {
2591 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2592 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2593 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2595 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2596 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2597 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2600 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2601 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2606 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2607 Service *s = SERVICE(u);
2614 if (streq(key, "state")) {
2617 if ((state = service_state_from_string(value)) < 0)
2618 log_debug("Failed to parse state value %s", value);
2620 s->deserialized_state = state;
2621 } else if (streq(key, "result")) {
2624 f = service_result_from_string(value);
2626 log_debug("Failed to parse result value %s", value);
2627 else if (f != SERVICE_SUCCESS)
2630 } else if (streq(key, "reload-result")) {
2633 f = service_result_from_string(value);
2635 log_debug("Failed to parse reload result value %s", value);
2636 else if (f != SERVICE_SUCCESS)
2637 s->reload_result = f;
2639 } else if (streq(key, "control-pid")) {
2642 if (parse_pid(value, &pid) < 0)
2643 log_debug("Failed to parse control-pid value %s", value);
2645 s->control_pid = pid;
2646 } else if (streq(key, "main-pid")) {
2649 if (parse_pid(value, &pid) < 0)
2650 log_debug("Failed to parse main-pid value %s", value);
2652 service_set_main_pid(s, (pid_t) pid);
2653 } else if (streq(key, "main-pid-known")) {
2656 if ((b = parse_boolean(value)) < 0)
2657 log_debug("Failed to parse main-pid-known value %s", value);
2659 s->main_pid_known = b;
2660 } else if (streq(key, "status-text")) {
2663 if ((t = strdup(value))) {
2664 free(s->status_text);
2668 } else if (streq(key, "control-command")) {
2669 ServiceExecCommand id;
2671 if ((id = service_exec_command_from_string(value)) < 0)
2672 log_debug("Failed to parse exec-command value %s", value);
2674 s->control_command_id = id;
2675 s->control_command = s->exec_command[id];
2677 } else if (streq(key, "socket-fd")) {
2680 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2681 log_debug("Failed to parse socket-fd value %s", value);
2684 if (s->socket_fd >= 0)
2685 close_nointr_nofail(s->socket_fd);
2686 s->socket_fd = fdset_remove(fds, fd);
2688 } else if (streq(key, "main-exec-status-pid")) {
2691 if (parse_pid(value, &pid) < 0)
2692 log_debug("Failed to parse main-exec-status-pid value %s", value);
2694 s->main_exec_status.pid = pid;
2695 } else if (streq(key, "main-exec-status-code")) {
2698 if (safe_atoi(value, &i) < 0)
2699 log_debug("Failed to parse main-exec-status-code value %s", value);
2701 s->main_exec_status.code = i;
2702 } else if (streq(key, "main-exec-status-status")) {
2705 if (safe_atoi(value, &i) < 0)
2706 log_debug("Failed to parse main-exec-status-status value %s", value);
2708 s->main_exec_status.status = i;
2709 } else if (streq(key, "main-exec-status-start"))
2710 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2711 else if (streq(key, "main-exec-status-exit"))
2712 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2713 else if (streq(key, "watchdog-timestamp"))
2714 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2716 log_debug("Unknown serialization key '%s'", key);
2721 static UnitActiveState service_active_state(Unit *u) {
2722 const UnitActiveState *table;
2726 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2728 return table[SERVICE(u)->state];
2731 static const char *service_sub_state_to_string(Unit *u) {
2734 return service_state_to_string(SERVICE(u)->state);
2737 static bool service_check_gc(Unit *u) {
2738 Service *s = SERVICE(u);
2742 /* Never clean up services that still have a process around,
2743 * even if the service is formally dead. */
2744 if (cgroup_good(s) > 0 ||
2745 main_pid_good(s) > 0 ||
2746 control_pid_good(s) > 0)
2749 #ifdef HAVE_SYSV_COMPAT
2757 static bool service_check_snapshot(Unit *u) {
2758 Service *s = SERVICE(u);
2762 return !s->got_socket_fd;
2765 static int service_retry_pid_file(Service *s) {
2768 assert(s->pid_file);
2769 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2771 r = service_load_pid_file(s, false);
2775 service_unwatch_pid_file(s);
2777 service_enter_running(s, SERVICE_SUCCESS);
2781 static int service_watch_pid_file(Service *s) {
2784 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2785 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2789 /* the pidfile might have appeared just before we set the watch */
2790 service_retry_pid_file(s);
2794 log_error("Failed to set a watch for %s's PID file %s: %s",
2795 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2796 service_unwatch_pid_file(s);
2800 static int service_demand_pid_file(Service *s) {
2803 assert(s->pid_file);
2804 assert(!s->pid_file_pathspec);
2806 ps = new0(PathSpec, 1);
2810 ps->path = strdup(s->pid_file);
2816 path_kill_slashes(ps->path);
2818 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2819 * keep their PID file open all the time. */
2820 ps->type = PATH_MODIFIED;
2821 ps->inotify_fd = -1;
2823 s->pid_file_pathspec = ps;
2825 return service_watch_pid_file(s);
2828 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2829 Service *s = SERVICE(u);
2833 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2834 assert(s->pid_file_pathspec);
2835 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2837 log_debug("inotify event for %s", u->id);
2839 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2842 if (service_retry_pid_file(s) == 0)
2845 if (service_watch_pid_file(s) < 0)
2850 service_unwatch_pid_file(s);
2851 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2854 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2855 Service *s = SERVICE(u);
2861 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2862 f = SERVICE_SUCCESS;
2863 else if (code == CLD_EXITED)
2864 f = SERVICE_FAILURE_EXIT_CODE;
2865 else if (code == CLD_KILLED)
2866 f = SERVICE_FAILURE_SIGNAL;
2867 else if (code == CLD_DUMPED)
2868 f = SERVICE_FAILURE_CORE_DUMP;
2870 assert_not_reached("Unknown code");
2872 if (s->main_pid == pid) {
2873 /* Forking services may occasionally move to a new PID.
2874 * As long as they update the PID file before exiting the old
2875 * PID, they're fine. */
2876 if (service_load_pid_file(s, false) == 0)
2880 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2882 /* If this is not a forking service than the main
2883 * process got started and hence we copy the exit
2884 * status so that it is recorded both as main and as
2885 * control process exit status */
2886 if (s->main_command) {
2887 s->main_command->exec_status = s->main_exec_status;
2889 if (s->main_command->ignore)
2890 f = SERVICE_SUCCESS;
2893 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2894 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2896 if (f != SERVICE_SUCCESS)
2899 if (s->main_command &&
2900 s->main_command->command_next &&
2901 f == SERVICE_SUCCESS) {
2903 /* There is another command to *
2904 * execute, so let's do that. */
2906 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2907 service_run_next_main(s);
2911 /* The service exited, so the service is officially
2913 s->main_command = NULL;
2917 case SERVICE_START_POST:
2918 case SERVICE_RELOAD:
2920 /* Need to wait until the operation is
2925 if (s->type == SERVICE_ONESHOT) {
2926 /* This was our main goal, so let's go on */
2927 if (f == SERVICE_SUCCESS)
2928 service_enter_start_post(s);
2930 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2933 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2938 case SERVICE_RUNNING:
2939 service_enter_running(s, f);
2942 case SERVICE_STOP_SIGTERM:
2943 case SERVICE_STOP_SIGKILL:
2945 if (!control_pid_good(s))
2946 service_enter_stop_post(s, f);
2948 /* If there is still a control process, wait for that first */
2952 assert_not_reached("Uh, main process died at wrong time.");
2956 } else if (s->control_pid == pid) {
2960 if (s->control_command) {
2961 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2963 if (s->control_command->ignore)
2964 f = SERVICE_SUCCESS;
2967 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2968 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2970 if (f != SERVICE_SUCCESS)
2973 /* Immediately get rid of the cgroup, so that the
2974 * kernel doesn't delay the cgroup empty messages for
2975 * the service cgroup any longer than necessary */
2976 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2978 if (s->control_command &&
2979 s->control_command->command_next &&
2980 f == SERVICE_SUCCESS) {
2982 /* There is another command to *
2983 * execute, so let's do that. */
2985 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2986 service_run_next_control(s);
2989 /* No further commands for this step, so let's
2990 * figure out what to do next */
2992 s->control_command = NULL;
2993 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2995 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
2999 case SERVICE_START_PRE:
3000 if (f == SERVICE_SUCCESS)
3001 service_enter_start(s);
3003 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3007 assert(s->type == SERVICE_FORKING);
3009 if (f != SERVICE_SUCCESS) {
3010 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3015 bool has_start_post;
3018 /* Let's try to load the pid file here if we can.
3019 * The PID file might actually be created by a START_POST
3020 * script. In that case don't worry if the loading fails. */
3022 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3023 r = service_load_pid_file(s, !has_start_post);
3024 if (!has_start_post && r < 0) {
3025 r = service_demand_pid_file(s);
3026 if (r < 0 || !cgroup_good(s))
3027 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3031 service_search_main_pid(s);
3033 service_enter_start_post(s);
3036 case SERVICE_START_POST:
3037 if (f != SERVICE_SUCCESS) {
3038 service_enter_stop(s, f);
3045 r = service_load_pid_file(s, true);
3047 r = service_demand_pid_file(s);
3048 if (r < 0 || !cgroup_good(s))
3049 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3053 service_search_main_pid(s);
3055 service_enter_running(s, SERVICE_SUCCESS);
3058 case SERVICE_RELOAD:
3059 if (f == SERVICE_SUCCESS) {
3060 service_load_pid_file(s, true);
3061 service_search_main_pid(s);
3064 s->reload_result = f;
3065 service_enter_running(s, SERVICE_SUCCESS);
3069 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3072 case SERVICE_STOP_SIGTERM:
3073 case SERVICE_STOP_SIGKILL:
3074 if (main_pid_good(s) <= 0)
3075 service_enter_stop_post(s, f);
3077 /* If there is still a service
3078 * process around, wait until
3079 * that one quit, too */
3082 case SERVICE_STOP_POST:
3083 case SERVICE_FINAL_SIGTERM:
3084 case SERVICE_FINAL_SIGKILL:
3085 service_enter_dead(s, f, true);
3089 assert_not_reached("Uh, control process died at wrong time.");
3094 /* Notify clients about changed exit status */
3095 unit_add_to_dbus_queue(u);
3098 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3099 Service *s = SERVICE(u);
3102 assert(elapsed == 1);
3104 if (w == &s->watchdog_watch) {
3105 service_handle_watchdog(s);
3109 assert(w == &s->timer_watch);
3113 case SERVICE_START_PRE:
3115 log_warning("%s operation timed out. Terminating.", u->id);
3116 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3119 case SERVICE_START_POST:
3120 log_warning("%s operation timed out. Stopping.", u->id);
3121 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3124 case SERVICE_RELOAD:
3125 log_warning("%s operation timed out. Stopping.", u->id);
3126 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3127 service_enter_running(s, SERVICE_SUCCESS);
3131 log_warning("%s stopping timed out. Terminating.", u->id);
3132 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3135 case SERVICE_STOP_SIGTERM:
3136 if (s->exec_context.send_sigkill) {
3137 log_warning("%s stopping timed out. Killing.", u->id);
3138 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3140 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3141 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3146 case SERVICE_STOP_SIGKILL:
3147 /* Uh, we sent a SIGKILL and it is still not gone?
3148 * Must be something we cannot kill, so let's just be
3149 * weirded out and continue */
3151 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3152 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3155 case SERVICE_STOP_POST:
3156 log_warning("%s stopping timed out (2). Terminating.", u->id);
3157 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3160 case SERVICE_FINAL_SIGTERM:
3161 if (s->exec_context.send_sigkill) {
3162 log_warning("%s stopping timed out (2). Killing.", u->id);
3163 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3165 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3166 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3171 case SERVICE_FINAL_SIGKILL:
3172 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3173 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3176 case SERVICE_AUTO_RESTART:
3177 log_info("%s holdoff time over, scheduling restart.", u->id);
3178 service_enter_restart(s);
3182 assert_not_reached("Timeout at wrong time.");
3186 static void service_cgroup_notify_event(Unit *u) {
3187 Service *s = SERVICE(u);
3191 log_debug("%s: cgroup is empty", u->id);
3195 /* Waiting for SIGCHLD is usually more interesting,
3196 * because it includes return codes/signals. Which is
3197 * why we ignore the cgroup events for most cases,
3198 * except when we don't know pid which to expect the
3202 case SERVICE_START_POST:
3203 /* If we were hoping for the daemon to write its PID file,
3204 * we can give up now. */
3205 if (s->pid_file_pathspec) {
3206 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3207 service_unwatch_pid_file(s);
3208 if (s->state == SERVICE_START)
3209 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3211 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3215 case SERVICE_RUNNING:
3216 /* service_enter_running() will figure out what to do */
3217 service_enter_running(s, SERVICE_SUCCESS);
3220 case SERVICE_STOP_SIGTERM:
3221 case SERVICE_STOP_SIGKILL:
3223 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3224 service_enter_stop_post(s, SERVICE_SUCCESS);
3228 case SERVICE_FINAL_SIGTERM:
3229 case SERVICE_FINAL_SIGKILL:
3230 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3231 service_enter_dead(s, SERVICE_SUCCESS, true);
3240 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3241 Service *s = SERVICE(u);
3246 if (s->notify_access == NOTIFY_NONE) {
3247 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3248 u->id, (unsigned long) pid);
3252 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3253 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3254 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3258 log_debug("%s: Got message", u->id);
3260 /* Interpret MAINPID= */
3261 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3262 (s->state == SERVICE_START ||
3263 s->state == SERVICE_START_POST ||
3264 s->state == SERVICE_RUNNING ||
3265 s->state == SERVICE_RELOAD)) {
3267 if (parse_pid(e + 8, &pid) < 0)
3268 log_warning("Failed to parse notification message %s", e);
3270 log_debug("%s: got %s", u->id, e);
3271 service_set_main_pid(s, pid);
3275 /* Interpret READY= */
3276 if (s->type == SERVICE_NOTIFY &&
3277 s->state == SERVICE_START &&
3278 strv_find(tags, "READY=1")) {
3279 log_debug("%s: got READY=1", u->id);
3281 service_enter_start_post(s);
3284 /* Interpret STATUS= */
3285 e = strv_find_prefix(tags, "STATUS=");
3291 if (!utf8_is_valid(e+7)) {
3292 log_warning("Status message in notification is not UTF-8 clean.");
3298 log_error("Failed to allocate string.");
3302 log_debug("%s: got %s", u->id, e);
3304 free(s->status_text);
3307 free(s->status_text);
3308 s->status_text = NULL;
3312 if (strv_find(tags, "WATCHDOG=1")) {
3313 log_debug("%s: got WATCHDOG=1", u->id);
3314 service_reset_watchdog(s);
3317 /* Notify clients about changed status or main pid */
3318 unit_add_to_dbus_queue(u);
3321 #ifdef HAVE_SYSV_COMPAT
3324 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3328 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3329 r = errno == ENOENT ? 0 : -errno;
3334 char l[LINE_MAX], *t;
3335 char **parsed = NULL;
3337 if (!fgets(l, sizeof(l), f)) {
3342 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3347 if (*t != '$' && *t != '<')
3350 parsed = strv_split(t,WHITESPACE);
3351 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3352 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3355 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3357 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3359 char *dep = NULL, *name, **j;
3361 STRV_FOREACH (j, parsed+1) {
3370 if (sysv_translate_facility(name, NULL, &dep) < 0)
3373 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3388 static int service_enumerate(Manager *m) {
3392 char *path = NULL, *fpath = NULL, *name = NULL;
3393 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3400 if (m->running_as != MANAGER_SYSTEM)
3403 zero(runlevel_services);
3405 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3406 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3410 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3419 if (!(d = opendir(path))) {
3420 if (errno != ENOENT)
3421 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3426 while ((de = readdir(d))) {
3429 if (ignore_file(de->d_name))
3432 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3435 if (strlen(de->d_name) < 4)
3438 a = undecchar(de->d_name[1]);
3439 b = undecchar(de->d_name[2]);
3445 fpath = strjoin(path, "/", de->d_name, NULL);
3451 if (access(fpath, X_OK) < 0) {
3453 if (errno != ENOENT)
3454 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3460 if (!(name = sysv_translate_name(de->d_name + 3))) {
3465 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3466 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3470 if (de->d_name[0] == 'S') {
3472 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3473 SERVICE(service)->sysv_start_priority_from_rcnd =
3474 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3476 SERVICE(service)->sysv_enabled = true;
3479 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3482 if ((r = set_put(runlevel_services[i], service)) < 0)
3485 } else if (de->d_name[0] == 'K' &&
3486 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3487 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3489 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3492 if ((r = set_put(shutdown_services, service)) < 0)
3498 /* Now we loaded all stubs and are aware of the lowest
3499 start-up priority for all services, not let's actually load
3500 the services, this will also tell us which services are
3501 actually native now */
3502 manager_dispatch_load_queue(m);
3504 /* If this is a native service, rely on native ways to pull in
3505 * a service, don't pull it in via sysv rcN.d links. */
3506 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3507 SET_FOREACH(service, runlevel_services[i], j) {
3508 service = unit_follow_merge(service);
3510 if (service->fragment_path)
3513 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3517 /* We honour K links only for halt/reboot. For the normal
3518 * runlevels we assume the stop jobs will be implicitly added
3519 * by the core logic. Also, we don't really distinguish here
3520 * between the runlevels 0 and 6 and just add them to the
3521 * special shutdown target. On SUSE the boot.d/ runlevel is
3522 * also used for shutdown, so we add links for that too to the
3523 * shutdown target.*/
3524 SET_FOREACH(service, shutdown_services, j) {
3525 service = unit_follow_merge(service);
3527 if (service->fragment_path)
3530 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3537 sysv_facility_in_insserv_conf (m);
3545 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3546 set_free(runlevel_services[i]);
3547 set_free(shutdown_services);
3556 static void service_bus_name_owner_change(
3559 const char *old_owner,
3560 const char *new_owner) {
3562 Service *s = SERVICE(u);
3567 assert(streq(s->bus_name, name));
3568 assert(old_owner || new_owner);
3570 if (old_owner && new_owner)
3571 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3573 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3575 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3577 s->bus_name_good = !!new_owner;
3579 if (s->type == SERVICE_DBUS) {
3581 /* service_enter_running() will figure out what to
3583 if (s->state == SERVICE_RUNNING)
3584 service_enter_running(s, SERVICE_SUCCESS);
3585 else if (s->state == SERVICE_START && new_owner)
3586 service_enter_start_post(s);
3588 } else if (new_owner &&
3590 (s->state == SERVICE_START ||
3591 s->state == SERVICE_START_POST ||
3592 s->state == SERVICE_RUNNING ||
3593 s->state == SERVICE_RELOAD)) {
3595 /* Try to acquire PID from bus service */
3596 log_debug("Trying to acquire PID from D-Bus name...");
3598 bus_query_pid(u->manager, name);
3602 static void service_bus_query_pid_done(
3607 Service *s = SERVICE(u);
3612 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3614 if (s->main_pid <= 0 &&
3615 (s->state == SERVICE_START ||
3616 s->state == SERVICE_START_POST ||
3617 s->state == SERVICE_RUNNING ||
3618 s->state == SERVICE_RELOAD))
3619 service_set_main_pid(s, pid);
3622 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3627 /* This is called by the socket code when instantiating a new
3628 * service for a stream socket and the socket needs to be
3631 if (UNIT(s)->load_state != UNIT_LOADED)
3634 if (s->socket_fd >= 0)
3637 if (s->state != SERVICE_DEAD)
3641 s->got_socket_fd = true;
3643 unit_ref_set(&s->accept_socket, UNIT(sock));
3645 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3648 static void service_reset_failed(Unit *u) {
3649 Service *s = SERVICE(u);
3653 if (s->state == SERVICE_FAILED)
3654 service_set_state(s, SERVICE_DEAD);
3656 s->result = SERVICE_SUCCESS;
3657 s->reload_result = SERVICE_SUCCESS;
3659 RATELIMIT_RESET(s->start_limit);
3662 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3663 Service *s = SERVICE(u);
3665 Set *pid_set = NULL;
3669 if (s->main_pid <= 0 && who == KILL_MAIN) {
3670 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3674 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3675 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3679 if (who == KILL_CONTROL || who == KILL_ALL)
3680 if (s->control_pid > 0)
3681 if (kill(s->control_pid, signo) < 0)
3684 if (who == KILL_MAIN || who == KILL_ALL)
3685 if (s->main_pid > 0)
3686 if (kill(s->main_pid, signo) < 0)
3689 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3692 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3695 /* Exclude the control/main pid from being killed via the cgroup */
3696 if (s->control_pid > 0)
3697 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3702 if (s->main_pid > 0)
3703 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3707 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3709 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3720 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3721 [SERVICE_DEAD] = "dead",
3722 [SERVICE_START_PRE] = "start-pre",
3723 [SERVICE_START] = "start",
3724 [SERVICE_START_POST] = "start-post",
3725 [SERVICE_RUNNING] = "running",
3726 [SERVICE_EXITED] = "exited",
3727 [SERVICE_RELOAD] = "reload",
3728 [SERVICE_STOP] = "stop",
3729 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3730 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3731 [SERVICE_STOP_POST] = "stop-post",
3732 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3733 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3734 [SERVICE_FAILED] = "failed",
3735 [SERVICE_AUTO_RESTART] = "auto-restart",
3738 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3740 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3741 [SERVICE_RESTART_NO] = "no",
3742 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3743 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3744 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3745 [SERVICE_RESTART_ALWAYS] = "always"
3748 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3750 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3751 [SERVICE_SIMPLE] = "simple",
3752 [SERVICE_FORKING] = "forking",
3753 [SERVICE_ONESHOT] = "oneshot",
3754 [SERVICE_DBUS] = "dbus",
3755 [SERVICE_NOTIFY] = "notify",
3756 [SERVICE_IDLE] = "idle"
3759 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3761 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3762 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3763 [SERVICE_EXEC_START] = "ExecStart",
3764 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3765 [SERVICE_EXEC_RELOAD] = "ExecReload",
3766 [SERVICE_EXEC_STOP] = "ExecStop",
3767 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3770 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3772 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3773 [NOTIFY_NONE] = "none",
3774 [NOTIFY_MAIN] = "main",
3775 [NOTIFY_ALL] = "all"
3778 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3780 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3781 [SERVICE_SUCCESS] = "success",
3782 [SERVICE_FAILURE_RESOURCES] = "resources",
3783 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3784 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3785 [SERVICE_FAILURE_SIGNAL] = "signal",
3786 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3787 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3790 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3792 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3793 [SERVICE_START_LIMIT_NONE] = "none",
3794 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3795 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3796 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3798 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3800 const UnitVTable service_vtable = {
3801 .object_size = sizeof(Service),
3807 .init = service_init,
3808 .done = service_done,
3809 .load = service_load,
3811 .coldplug = service_coldplug,
3813 .dump = service_dump,
3815 .start = service_start,
3816 .stop = service_stop,
3817 .reload = service_reload,
3819 .can_reload = service_can_reload,
3821 .kill = service_kill,
3823 .serialize = service_serialize,
3824 .deserialize_item = service_deserialize_item,
3826 .active_state = service_active_state,
3827 .sub_state_to_string = service_sub_state_to_string,
3829 .check_gc = service_check_gc,
3830 .check_snapshot = service_check_snapshot,
3832 .sigchld_event = service_sigchld_event,
3833 .timer_event = service_timer_event,
3834 .fd_event = service_fd_event,
3836 .reset_failed = service_reset_failed,
3838 .cgroup_notify_empty = service_cgroup_notify_event,
3839 .notify_message = service_notify_message,
3841 .bus_name_owner_change = service_bus_name_owner_change,
3842 .bus_query_pid_done = service_bus_query_pid_done,
3844 .bus_interface = "org.freedesktop.systemd1.Service",
3845 .bus_message_handler = bus_service_message_handler,
3846 .bus_invalidating_properties = bus_service_invalidating_properties,
3848 #ifdef HAVE_SYSV_COMPAT
3849 .enumerate = service_enumerate,
3851 .status_message_formats = {
3852 .starting_stopping = {
3853 [0] = "Starting %s...",
3854 [1] = "Stopping %s...",
3856 .finished_start_job = {
3857 [JOB_DONE] = "Started %s.",
3858 [JOB_FAILED] = "Failed to start %s.",
3859 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3860 [JOB_TIMEOUT] = "Timed out starting %s.",
3862 .finished_stop_job = {
3863 [JOB_DONE] = "Stopped %s.",
3864 [JOB_FAILED] = "Stopped (with error) %s.",
3865 [JOB_TIMEOUT] = "Timed out stopping %s.",