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)
1286 r = unit_patch_working_directory(UNIT(s), &s->exec_context);
1291 return service_verify(s);
1294 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1296 ServiceExecCommand c;
1297 Service *s = SERVICE(u);
1298 const char *prefix2;
1303 p2 = strappend(prefix, "\t");
1304 prefix2 = p2 ? p2 : prefix;
1307 "%sService State: %s\n"
1309 "%sReload Result: %s\n"
1310 "%sPermissionsStartOnly: %s\n"
1311 "%sRootDirectoryStartOnly: %s\n"
1312 "%sRemainAfterExit: %s\n"
1313 "%sGuessMainPID: %s\n"
1316 "%sNotifyAccess: %s\n",
1317 prefix, service_state_to_string(s->state),
1318 prefix, service_result_to_string(s->result),
1319 prefix, service_result_to_string(s->reload_result),
1320 prefix, yes_no(s->permissions_start_only),
1321 prefix, yes_no(s->root_directory_start_only),
1322 prefix, yes_no(s->remain_after_exit),
1323 prefix, yes_no(s->guess_main_pid),
1324 prefix, service_type_to_string(s->type),
1325 prefix, service_restart_to_string(s->restart),
1326 prefix, notify_access_to_string(s->notify_access));
1328 if (s->control_pid > 0)
1330 "%sControl PID: %lu\n",
1331 prefix, (unsigned long) s->control_pid);
1333 if (s->main_pid > 0)
1336 "%sMain PID Known: %s\n"
1337 "%sMain PID Alien: %s\n",
1338 prefix, (unsigned long) s->main_pid,
1339 prefix, yes_no(s->main_pid_known),
1340 prefix, yes_no(s->main_pid_alien));
1345 prefix, s->pid_file);
1350 "%sBus Name Good: %s\n",
1351 prefix, s->bus_name,
1352 prefix, yes_no(s->bus_name_good));
1354 exec_context_dump(&s->exec_context, f, prefix);
1356 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1358 if (!s->exec_command[c])
1361 fprintf(f, "%s-> %s:\n",
1362 prefix, service_exec_command_to_string(c));
1364 exec_command_dump_list(s->exec_command[c], f, prefix2);
1367 #ifdef HAVE_SYSV_COMPAT
1370 "%sSysV Init Script has LSB Header: %s\n"
1371 "%sSysVEnabled: %s\n",
1372 prefix, yes_no(s->sysv_has_lsb),
1373 prefix, yes_no(s->sysv_enabled));
1375 if (s->sysv_start_priority >= 0)
1377 "%sSysVStartPriority: %i\n",
1378 prefix, s->sysv_start_priority);
1380 if (s->sysv_runlevels)
1381 fprintf(f, "%sSysVRunLevels: %s\n",
1382 prefix, s->sysv_runlevels);
1385 if (s->fsck_passno > 0)
1387 "%sFsckPassNo: %i\n",
1388 prefix, s->fsck_passno);
1391 fprintf(f, "%sStatus Text: %s\n",
1392 prefix, s->status_text);
1397 static int service_load_pid_file(Service *s, bool may_warn) {
1407 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1409 log_info("PID file %s not readable (yet?) after %s.",
1410 s->pid_file, service_state_to_string(s->state));
1414 r = parse_pid(k, &pid);
1420 if (kill(pid, 0) < 0 && errno != EPERM) {
1422 log_info("PID %lu read from file %s does not exist.",
1423 (unsigned long) pid, s->pid_file);
1427 if (s->main_pid_known) {
1428 if (pid == s->main_pid)
1431 log_debug("Main PID changing: %lu -> %lu",
1432 (unsigned long) s->main_pid, (unsigned long) pid);
1433 service_unwatch_main_pid(s);
1434 s->main_pid_known = false;
1436 log_debug("Main PID loaded: %lu", (unsigned long) pid);
1438 if ((r = service_set_main_pid(s, pid)) < 0)
1441 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1442 /* FIXME: we need to do something here */
1448 static int service_search_main_pid(Service *s) {
1454 /* If we know it anyway, don't ever fallback to unreliable
1456 if (s->main_pid_known)
1459 if (!s->guess_main_pid)
1462 assert(s->main_pid <= 0);
1464 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1467 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1468 if ((r = service_set_main_pid(s, pid)) < 0)
1471 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1472 /* FIXME: we need to do something here */
1478 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1484 /* Notifies all our sockets when we die */
1486 if (s->socket_fd >= 0)
1489 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1490 if (u->type == UNIT_SOCKET)
1491 socket_notify_service_dead(SOCKET(u), failed_permanent);
1496 static void service_set_state(Service *s, ServiceState state) {
1497 ServiceState old_state;
1498 const UnitActiveState *table;
1501 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1503 old_state = s->state;
1506 service_unwatch_pid_file(s);
1508 if (state != SERVICE_START_PRE &&
1509 state != SERVICE_START &&
1510 state != SERVICE_START_POST &&
1511 state != SERVICE_RELOAD &&
1512 state != SERVICE_STOP &&
1513 state != SERVICE_STOP_SIGTERM &&
1514 state != SERVICE_STOP_SIGKILL &&
1515 state != SERVICE_STOP_POST &&
1516 state != SERVICE_FINAL_SIGTERM &&
1517 state != SERVICE_FINAL_SIGKILL &&
1518 state != SERVICE_AUTO_RESTART)
1519 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1521 if (state != SERVICE_START &&
1522 state != SERVICE_START_POST &&
1523 state != SERVICE_RUNNING &&
1524 state != SERVICE_RELOAD &&
1525 state != SERVICE_STOP &&
1526 state != SERVICE_STOP_SIGTERM &&
1527 state != SERVICE_STOP_SIGKILL) {
1528 service_unwatch_main_pid(s);
1529 s->main_command = NULL;
1532 if (state != SERVICE_START_PRE &&
1533 state != SERVICE_START &&
1534 state != SERVICE_START_POST &&
1535 state != SERVICE_RELOAD &&
1536 state != SERVICE_STOP &&
1537 state != SERVICE_STOP_SIGTERM &&
1538 state != SERVICE_STOP_SIGKILL &&
1539 state != SERVICE_STOP_POST &&
1540 state != SERVICE_FINAL_SIGTERM &&
1541 state != SERVICE_FINAL_SIGKILL) {
1542 service_unwatch_control_pid(s);
1543 s->control_command = NULL;
1544 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1547 if (state == SERVICE_DEAD ||
1548 state == SERVICE_STOP ||
1549 state == SERVICE_STOP_SIGTERM ||
1550 state == SERVICE_STOP_SIGKILL ||
1551 state == SERVICE_STOP_POST ||
1552 state == SERVICE_FINAL_SIGTERM ||
1553 state == SERVICE_FINAL_SIGKILL ||
1554 state == SERVICE_FAILED ||
1555 state == SERVICE_AUTO_RESTART)
1556 service_notify_sockets_dead(s, false);
1558 if (state != SERVICE_START_PRE &&
1559 state != SERVICE_START &&
1560 state != SERVICE_START_POST &&
1561 state != SERVICE_RUNNING &&
1562 state != SERVICE_RELOAD &&
1563 state != SERVICE_STOP &&
1564 state != SERVICE_STOP_SIGTERM &&
1565 state != SERVICE_STOP_SIGKILL &&
1566 state != SERVICE_STOP_POST &&
1567 state != SERVICE_FINAL_SIGTERM &&
1568 state != SERVICE_FINAL_SIGKILL &&
1569 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1570 service_close_socket_fd(s);
1571 service_connection_unref(s);
1574 if (state == SERVICE_STOP)
1575 service_stop_watchdog(s);
1577 /* For the inactive states unit_notify() will trim the cgroup,
1578 * but for exit we have to do that ourselves... */
1579 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1580 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1582 if (old_state != state)
1583 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1585 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1586 s->reload_result = SERVICE_SUCCESS;
1589 static int service_coldplug(Unit *u) {
1590 Service *s = SERVICE(u);
1594 assert(s->state == SERVICE_DEAD);
1596 if (s->deserialized_state != s->state) {
1598 if (s->deserialized_state == SERVICE_START_PRE ||
1599 s->deserialized_state == SERVICE_START ||
1600 s->deserialized_state == SERVICE_START_POST ||
1601 s->deserialized_state == SERVICE_RELOAD ||
1602 s->deserialized_state == SERVICE_STOP ||
1603 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1604 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1605 s->deserialized_state == SERVICE_STOP_POST ||
1606 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1607 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1608 s->deserialized_state == SERVICE_AUTO_RESTART) {
1610 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1613 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1615 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1620 if ((s->deserialized_state == SERVICE_START &&
1621 (s->type == SERVICE_FORKING ||
1622 s->type == SERVICE_DBUS ||
1623 s->type == SERVICE_ONESHOT ||
1624 s->type == SERVICE_NOTIFY)) ||
1625 s->deserialized_state == SERVICE_START_POST ||
1626 s->deserialized_state == SERVICE_RUNNING ||
1627 s->deserialized_state == SERVICE_RELOAD ||
1628 s->deserialized_state == SERVICE_STOP ||
1629 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1630 s->deserialized_state == SERVICE_STOP_SIGKILL)
1631 if (s->main_pid > 0)
1632 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1635 if (s->deserialized_state == SERVICE_START_PRE ||
1636 s->deserialized_state == SERVICE_START ||
1637 s->deserialized_state == SERVICE_START_POST ||
1638 s->deserialized_state == SERVICE_RELOAD ||
1639 s->deserialized_state == SERVICE_STOP ||
1640 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1641 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1642 s->deserialized_state == SERVICE_STOP_POST ||
1643 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1644 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1645 if (s->control_pid > 0)
1646 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1649 if (s->deserialized_state == SERVICE_START_POST ||
1650 s->deserialized_state == SERVICE_RUNNING)
1651 service_handle_watchdog(s);
1653 service_set_state(s, s->deserialized_state);
1658 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1662 unsigned rn_fds = 0;
1669 if (s->socket_fd >= 0)
1672 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1677 if (u->type != UNIT_SOCKET)
1682 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1694 if (!(t = new(int, rn_fds+cn_fds))) {
1700 memcpy(t, rfds, rn_fds * sizeof(int));
1701 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1706 rn_fds = rn_fds+cn_fds;
1721 static int service_spawn(
1726 bool apply_permissions,
1728 bool apply_tty_stdin,
1729 bool set_notify_socket,
1735 int *fds = NULL, *fdsbuf = NULL;
1736 unsigned n_fds = 0, n_env = 0;
1737 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1744 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1745 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1746 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1748 if (s->socket_fd >= 0) {
1749 fds = &s->socket_fd;
1752 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1759 if (timeout && s->timeout_usec) {
1760 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1763 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1765 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1770 if (!(our_env = new0(char*, 4))) {
1775 if (set_notify_socket)
1776 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1781 if (s->main_pid > 0)
1782 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1787 if (s->watchdog_usec > 0)
1788 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1793 if (!(final_env = strv_env_merge(2,
1794 UNIT(s)->manager->environment,
1809 UNIT(s)->manager->confirm_spawn,
1810 UNIT(s)->cgroup_bondings,
1811 UNIT(s)->cgroup_attributes,
1812 is_control ? "control" : NULL,
1814 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1821 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1822 /* FIXME: we need to do something here */
1828 strv_free(final_env);
1838 strv_free(final_env);
1841 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1846 static int main_pid_good(Service *s) {
1849 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1852 /* If we know the pid file, then lets just check if it is
1854 if (s->main_pid_known) {
1856 /* If it's an alien child let's check if it is still
1858 if (s->main_pid_alien)
1859 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1861 /* .. otherwise assume we'll get a SIGCHLD for it,
1862 * which we really should wait for to collect exit
1863 * status and code */
1864 return s->main_pid > 0;
1867 /* We don't know the pid */
1871 static int control_pid_good(Service *s) {
1874 return s->control_pid > 0;
1877 static int cgroup_good(Service *s) {
1882 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1888 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1892 if (f != SERVICE_SUCCESS)
1895 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1897 if (allow_restart &&
1898 !s->forbid_restart &&
1899 (s->restart == SERVICE_RESTART_ALWAYS ||
1900 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1901 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1902 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1903 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1905 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1909 service_set_state(s, SERVICE_AUTO_RESTART);
1912 s->forbid_restart = false;
1917 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1918 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1921 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1923 static void service_enter_stop_post(Service *s, ServiceResult f) {
1927 if (f != SERVICE_SUCCESS)
1930 service_unwatch_control_pid(s);
1932 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1933 s->control_command_id = SERVICE_EXEC_STOP_POST;
1935 r = service_spawn(s,
1939 !s->permissions_start_only,
1940 !s->root_directory_start_only,
1949 service_set_state(s, SERVICE_STOP_POST);
1951 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1956 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1957 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1960 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1962 Set *pid_set = NULL;
1963 bool wait_for_exit = false;
1967 if (f != SERVICE_SUCCESS)
1970 if (s->exec_context.kill_mode != KILL_NONE) {
1971 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1973 if (s->main_pid > 0) {
1974 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1975 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1977 wait_for_exit = !s->main_pid_alien;
1980 if (s->control_pid > 0) {
1981 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1982 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1984 wait_for_exit = true;
1987 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1989 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1994 /* Exclude the main/control pids from being killed via the cgroup */
1995 if (s->main_pid > 0)
1996 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1999 if (s->control_pid > 0)
2000 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
2003 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
2005 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2006 log_warning("Failed to kill control group: %s", strerror(-r));
2008 wait_for_exit = true;
2015 if (wait_for_exit) {
2016 if (s->timeout_usec > 0)
2017 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
2020 service_set_state(s, state);
2021 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2022 service_enter_stop_post(s, SERVICE_SUCCESS);
2024 service_enter_dead(s, SERVICE_SUCCESS, true);
2029 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2031 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2032 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2034 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2040 static void service_enter_stop(Service *s, ServiceResult f) {
2045 if (f != SERVICE_SUCCESS)
2048 service_unwatch_control_pid(s);
2050 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2051 s->control_command_id = SERVICE_EXEC_STOP;
2053 r = service_spawn(s,
2057 !s->permissions_start_only,
2058 !s->root_directory_start_only,
2066 service_set_state(s, SERVICE_STOP);
2068 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2073 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2074 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2077 static void service_enter_running(Service *s, ServiceResult f) {
2078 int main_pid_ok, cgroup_ok;
2081 if (f != SERVICE_SUCCESS)
2084 main_pid_ok = main_pid_good(s);
2085 cgroup_ok = cgroup_good(s);
2087 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2088 (s->bus_name_good || s->type != SERVICE_DBUS))
2089 service_set_state(s, SERVICE_RUNNING);
2090 else if (s->remain_after_exit)
2091 service_set_state(s, SERVICE_EXITED);
2093 service_enter_stop(s, SERVICE_SUCCESS);
2096 static void service_enter_start_post(Service *s) {
2100 service_unwatch_control_pid(s);
2102 if (s->watchdog_usec > 0)
2103 service_reset_watchdog(s);
2105 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2106 s->control_command_id = SERVICE_EXEC_START_POST;
2108 r = service_spawn(s,
2112 !s->permissions_start_only,
2113 !s->root_directory_start_only,
2121 service_set_state(s, SERVICE_START_POST);
2123 service_enter_running(s, SERVICE_SUCCESS);
2128 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2129 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2132 static void service_enter_start(Service *s) {
2139 assert(s->exec_command[SERVICE_EXEC_START]);
2140 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2142 if (s->type == SERVICE_FORKING)
2143 service_unwatch_control_pid(s);
2145 service_unwatch_main_pid(s);
2147 /* We want to ensure that nobody leaks processes from
2148 * START_PRE here, so let's go on a killing spree, People
2149 * should not spawn long running processes from START_PRE. */
2150 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2152 if (s->type == SERVICE_FORKING) {
2153 s->control_command_id = SERVICE_EXEC_START;
2154 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2156 s->main_command = NULL;
2158 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2159 s->control_command = NULL;
2161 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2164 r = service_spawn(s,
2166 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2171 s->notify_access != NOTIFY_NONE,
2177 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2178 /* For simple services we immediately start
2179 * the START_POST binaries. */
2181 service_set_main_pid(s, pid);
2182 service_enter_start_post(s);
2184 } else if (s->type == SERVICE_FORKING) {
2186 /* For forking services we wait until the start
2187 * process exited. */
2189 s->control_pid = pid;
2190 service_set_state(s, SERVICE_START);
2192 } else if (s->type == SERVICE_ONESHOT ||
2193 s->type == SERVICE_DBUS ||
2194 s->type == SERVICE_NOTIFY) {
2196 /* For oneshot services we wait until the start
2197 * process exited, too, but it is our main process. */
2199 /* For D-Bus services we know the main pid right away,
2200 * but wait for the bus name to appear on the
2201 * bus. Notify services are similar. */
2203 service_set_main_pid(s, pid);
2204 service_set_state(s, SERVICE_START);
2206 assert_not_reached("Unknown service type");
2211 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2212 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2215 static void service_enter_start_pre(Service *s) {
2220 service_unwatch_control_pid(s);
2222 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2224 /* Before we start anything, let's clear up what might
2225 * be left from previous runs. */
2226 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2228 s->control_command_id = SERVICE_EXEC_START_PRE;
2230 r = service_spawn(s,
2234 !s->permissions_start_only,
2235 !s->root_directory_start_only,
2243 service_set_state(s, SERVICE_START_PRE);
2245 service_enter_start(s);
2250 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2251 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2254 static void service_enter_restart(Service *s) {
2259 dbus_error_init(&error);
2262 log_info("Job pending for unit, delaying automatic restart.");
2264 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2270 /* Any units that are bound to this service must also be
2271 * restarted. We use JOB_RESTART (instead of the more obvious
2272 * JOB_START) here so that those dependency jobs will be added
2274 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2278 log_debug("%s scheduled restart job.", UNIT(s)->id);
2282 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2283 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2285 dbus_error_free(&error);
2288 static void service_enter_reload(Service *s) {
2293 service_unwatch_control_pid(s);
2295 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2296 s->control_command_id = SERVICE_EXEC_RELOAD;
2298 r = service_spawn(s,
2302 !s->permissions_start_only,
2303 !s->root_directory_start_only,
2311 service_set_state(s, SERVICE_RELOAD);
2313 service_enter_running(s, SERVICE_SUCCESS);
2318 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2319 s->reload_result = SERVICE_FAILURE_RESOURCES;
2320 service_enter_running(s, SERVICE_SUCCESS);
2323 static void service_run_next_control(Service *s) {
2327 assert(s->control_command);
2328 assert(s->control_command->command_next);
2330 assert(s->control_command_id != SERVICE_EXEC_START);
2332 s->control_command = s->control_command->command_next;
2333 service_unwatch_control_pid(s);
2335 r = service_spawn(s,
2339 !s->permissions_start_only,
2340 !s->root_directory_start_only,
2341 s->control_command_id == SERVICE_EXEC_START_PRE ||
2342 s->control_command_id == SERVICE_EXEC_STOP_POST,
2352 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2354 if (s->state == SERVICE_START_PRE)
2355 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2356 else if (s->state == SERVICE_STOP)
2357 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2358 else if (s->state == SERVICE_STOP_POST)
2359 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2360 else if (s->state == SERVICE_RELOAD) {
2361 s->reload_result = SERVICE_FAILURE_RESOURCES;
2362 service_enter_running(s, SERVICE_SUCCESS);
2364 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2367 static void service_run_next_main(Service *s) {
2372 assert(s->main_command);
2373 assert(s->main_command->command_next);
2374 assert(s->type == SERVICE_ONESHOT);
2376 s->main_command = s->main_command->command_next;
2377 service_unwatch_main_pid(s);
2379 r = service_spawn(s,
2386 s->notify_access != NOTIFY_NONE,
2392 service_set_main_pid(s, pid);
2397 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2398 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2401 static int service_start_limit_test(Service *s) {
2404 if (ratelimit_test(&s->start_limit))
2407 switch (s->start_limit_action) {
2409 case SERVICE_START_LIMIT_NONE:
2410 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2413 case SERVICE_START_LIMIT_REBOOT: {
2417 dbus_error_init(&error);
2419 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2421 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2423 log_error("Failed to reboot: %s.", bus_error(&error, r));
2424 dbus_error_free(&error);
2430 case SERVICE_START_LIMIT_REBOOT_FORCE:
2431 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2432 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2435 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2436 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2437 reboot(RB_AUTOBOOT);
2441 log_error("start limit action=%i", s->start_limit_action);
2442 assert_not_reached("Unknown StartLimitAction.");
2448 static int service_start(Unit *u) {
2449 Service *s = SERVICE(u);
2454 /* We cannot fulfill this request right now, try again later
2456 if (s->state == SERVICE_STOP ||
2457 s->state == SERVICE_STOP_SIGTERM ||
2458 s->state == SERVICE_STOP_SIGKILL ||
2459 s->state == SERVICE_STOP_POST ||
2460 s->state == SERVICE_FINAL_SIGTERM ||
2461 s->state == SERVICE_FINAL_SIGKILL)
2464 /* Already on it! */
2465 if (s->state == SERVICE_START_PRE ||
2466 s->state == SERVICE_START ||
2467 s->state == SERVICE_START_POST)
2470 /* A service that will be restarted must be stopped first to
2471 * trigger BindsTo and/or OnFailure dependencies. If a user
2472 * does not want to wait for the holdoff time to elapse, the
2473 * service should be manually restarted, not started. */
2474 if (s->state == SERVICE_AUTO_RESTART) {
2475 log_warning("%s automatic restart is pending, must be stopped before issuing start request.", UNIT(s)->id);
2479 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2481 /* Make sure we don't enter a busy loop of some kind. */
2482 r = service_start_limit_test(s);
2484 service_notify_sockets_dead(s, true);
2488 s->result = SERVICE_SUCCESS;
2489 s->reload_result = SERVICE_SUCCESS;
2490 s->main_pid_known = false;
2491 s->main_pid_alien = false;
2492 s->forbid_restart = false;
2494 service_enter_start_pre(s);
2498 static int service_stop(Unit *u) {
2499 Service *s = SERVICE(u);
2503 /* Don't create restart jobs from here. */
2504 s->forbid_restart = true;
2507 if (s->state == SERVICE_STOP ||
2508 s->state == SERVICE_STOP_SIGTERM ||
2509 s->state == SERVICE_STOP_SIGKILL ||
2510 s->state == SERVICE_STOP_POST ||
2511 s->state == SERVICE_FINAL_SIGTERM ||
2512 s->state == SERVICE_FINAL_SIGKILL)
2515 /* A restart will be scheduled or is in progress. */
2516 if (s->state == SERVICE_AUTO_RESTART) {
2517 service_set_state(s, SERVICE_DEAD);
2521 /* If there's already something running we go directly into
2523 if (s->state == SERVICE_START_PRE ||
2524 s->state == SERVICE_START ||
2525 s->state == SERVICE_START_POST ||
2526 s->state == SERVICE_RELOAD) {
2527 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2531 assert(s->state == SERVICE_RUNNING ||
2532 s->state == SERVICE_EXITED);
2534 service_enter_stop(s, SERVICE_SUCCESS);
2538 static int service_reload(Unit *u) {
2539 Service *s = SERVICE(u);
2543 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2545 service_enter_reload(s);
2549 static bool service_can_reload(Unit *u) {
2550 Service *s = SERVICE(u);
2554 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2557 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2558 Service *s = SERVICE(u);
2564 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2565 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2566 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2568 if (s->control_pid > 0)
2569 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2571 if (s->main_pid_known && s->main_pid > 0)
2572 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2574 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2577 unit_serialize_item(u, f, "status-text", s->status_text);
2579 /* FIXME: There's a minor uncleanliness here: if there are
2580 * multiple commands attached here, we will start from the
2581 * first one again */
2582 if (s->control_command_id >= 0)
2583 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2585 if (s->socket_fd >= 0) {
2588 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2591 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2594 if (s->main_exec_status.pid > 0) {
2595 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2596 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2597 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2599 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2600 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2601 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2604 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2605 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2610 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2611 Service *s = SERVICE(u);
2618 if (streq(key, "state")) {
2621 if ((state = service_state_from_string(value)) < 0)
2622 log_debug("Failed to parse state value %s", value);
2624 s->deserialized_state = state;
2625 } else if (streq(key, "result")) {
2628 f = service_result_from_string(value);
2630 log_debug("Failed to parse result value %s", value);
2631 else if (f != SERVICE_SUCCESS)
2634 } else if (streq(key, "reload-result")) {
2637 f = service_result_from_string(value);
2639 log_debug("Failed to parse reload result value %s", value);
2640 else if (f != SERVICE_SUCCESS)
2641 s->reload_result = f;
2643 } else if (streq(key, "control-pid")) {
2646 if (parse_pid(value, &pid) < 0)
2647 log_debug("Failed to parse control-pid value %s", value);
2649 s->control_pid = pid;
2650 } else if (streq(key, "main-pid")) {
2653 if (parse_pid(value, &pid) < 0)
2654 log_debug("Failed to parse main-pid value %s", value);
2656 service_set_main_pid(s, (pid_t) pid);
2657 } else if (streq(key, "main-pid-known")) {
2660 if ((b = parse_boolean(value)) < 0)
2661 log_debug("Failed to parse main-pid-known value %s", value);
2663 s->main_pid_known = b;
2664 } else if (streq(key, "status-text")) {
2667 if ((t = strdup(value))) {
2668 free(s->status_text);
2672 } else if (streq(key, "control-command")) {
2673 ServiceExecCommand id;
2675 if ((id = service_exec_command_from_string(value)) < 0)
2676 log_debug("Failed to parse exec-command value %s", value);
2678 s->control_command_id = id;
2679 s->control_command = s->exec_command[id];
2681 } else if (streq(key, "socket-fd")) {
2684 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2685 log_debug("Failed to parse socket-fd value %s", value);
2688 if (s->socket_fd >= 0)
2689 close_nointr_nofail(s->socket_fd);
2690 s->socket_fd = fdset_remove(fds, fd);
2692 } else if (streq(key, "main-exec-status-pid")) {
2695 if (parse_pid(value, &pid) < 0)
2696 log_debug("Failed to parse main-exec-status-pid value %s", value);
2698 s->main_exec_status.pid = pid;
2699 } else if (streq(key, "main-exec-status-code")) {
2702 if (safe_atoi(value, &i) < 0)
2703 log_debug("Failed to parse main-exec-status-code value %s", value);
2705 s->main_exec_status.code = i;
2706 } else if (streq(key, "main-exec-status-status")) {
2709 if (safe_atoi(value, &i) < 0)
2710 log_debug("Failed to parse main-exec-status-status value %s", value);
2712 s->main_exec_status.status = i;
2713 } else if (streq(key, "main-exec-status-start"))
2714 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2715 else if (streq(key, "main-exec-status-exit"))
2716 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2717 else if (streq(key, "watchdog-timestamp"))
2718 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2720 log_debug("Unknown serialization key '%s'", key);
2725 static UnitActiveState service_active_state(Unit *u) {
2726 const UnitActiveState *table;
2730 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2732 return table[SERVICE(u)->state];
2735 static const char *service_sub_state_to_string(Unit *u) {
2738 return service_state_to_string(SERVICE(u)->state);
2741 static bool service_check_gc(Unit *u) {
2742 Service *s = SERVICE(u);
2746 /* Never clean up services that still have a process around,
2747 * even if the service is formally dead. */
2748 if (cgroup_good(s) > 0 ||
2749 main_pid_good(s) > 0 ||
2750 control_pid_good(s) > 0)
2753 #ifdef HAVE_SYSV_COMPAT
2761 static bool service_check_snapshot(Unit *u) {
2762 Service *s = SERVICE(u);
2766 return !s->got_socket_fd;
2769 static int service_retry_pid_file(Service *s) {
2772 assert(s->pid_file);
2773 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2775 r = service_load_pid_file(s, false);
2779 service_unwatch_pid_file(s);
2781 service_enter_running(s, SERVICE_SUCCESS);
2785 static int service_watch_pid_file(Service *s) {
2788 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2789 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2793 /* the pidfile might have appeared just before we set the watch */
2794 service_retry_pid_file(s);
2798 log_error("Failed to set a watch for %s's PID file %s: %s",
2799 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2800 service_unwatch_pid_file(s);
2804 static int service_demand_pid_file(Service *s) {
2807 assert(s->pid_file);
2808 assert(!s->pid_file_pathspec);
2810 ps = new0(PathSpec, 1);
2814 ps->path = strdup(s->pid_file);
2820 path_kill_slashes(ps->path);
2822 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2823 * keep their PID file open all the time. */
2824 ps->type = PATH_MODIFIED;
2825 ps->inotify_fd = -1;
2827 s->pid_file_pathspec = ps;
2829 return service_watch_pid_file(s);
2832 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2833 Service *s = SERVICE(u);
2837 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2838 assert(s->pid_file_pathspec);
2839 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2841 log_debug("inotify event for %s", u->id);
2843 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2846 if (service_retry_pid_file(s) == 0)
2849 if (service_watch_pid_file(s) < 0)
2854 service_unwatch_pid_file(s);
2855 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2858 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2859 Service *s = SERVICE(u);
2865 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2866 f = SERVICE_SUCCESS;
2867 else if (code == CLD_EXITED)
2868 f = SERVICE_FAILURE_EXIT_CODE;
2869 else if (code == CLD_KILLED)
2870 f = SERVICE_FAILURE_SIGNAL;
2871 else if (code == CLD_DUMPED)
2872 f = SERVICE_FAILURE_CORE_DUMP;
2874 assert_not_reached("Unknown code");
2876 if (s->main_pid == pid) {
2877 /* Forking services may occasionally move to a new PID.
2878 * As long as they update the PID file before exiting the old
2879 * PID, they're fine. */
2880 if (service_load_pid_file(s, false) == 0)
2884 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2886 /* If this is not a forking service than the main
2887 * process got started and hence we copy the exit
2888 * status so that it is recorded both as main and as
2889 * control process exit status */
2890 if (s->main_command) {
2891 s->main_command->exec_status = s->main_exec_status;
2893 if (s->main_command->ignore)
2894 f = SERVICE_SUCCESS;
2897 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2898 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2900 if (f != SERVICE_SUCCESS)
2903 if (s->main_command &&
2904 s->main_command->command_next &&
2905 f == SERVICE_SUCCESS) {
2907 /* There is another command to *
2908 * execute, so let's do that. */
2910 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2911 service_run_next_main(s);
2915 /* The service exited, so the service is officially
2917 s->main_command = NULL;
2921 case SERVICE_START_POST:
2922 case SERVICE_RELOAD:
2924 /* Need to wait until the operation is
2929 if (s->type == SERVICE_ONESHOT) {
2930 /* This was our main goal, so let's go on */
2931 if (f == SERVICE_SUCCESS)
2932 service_enter_start_post(s);
2934 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2937 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2942 case SERVICE_RUNNING:
2943 service_enter_running(s, f);
2946 case SERVICE_STOP_SIGTERM:
2947 case SERVICE_STOP_SIGKILL:
2949 if (!control_pid_good(s))
2950 service_enter_stop_post(s, f);
2952 /* If there is still a control process, wait for that first */
2956 assert_not_reached("Uh, main process died at wrong time.");
2960 } else if (s->control_pid == pid) {
2964 if (s->control_command) {
2965 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2967 if (s->control_command->ignore)
2968 f = SERVICE_SUCCESS;
2971 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2972 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2974 if (f != SERVICE_SUCCESS)
2977 /* Immediately get rid of the cgroup, so that the
2978 * kernel doesn't delay the cgroup empty messages for
2979 * the service cgroup any longer than necessary */
2980 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2982 if (s->control_command &&
2983 s->control_command->command_next &&
2984 f == SERVICE_SUCCESS) {
2986 /* There is another command to *
2987 * execute, so let's do that. */
2989 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2990 service_run_next_control(s);
2993 /* No further commands for this step, so let's
2994 * figure out what to do next */
2996 s->control_command = NULL;
2997 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2999 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
3003 case SERVICE_START_PRE:
3004 if (f == SERVICE_SUCCESS)
3005 service_enter_start(s);
3007 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3011 assert(s->type == SERVICE_FORKING);
3013 if (f != SERVICE_SUCCESS) {
3014 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3019 bool has_start_post;
3022 /* Let's try to load the pid file here if we can.
3023 * The PID file might actually be created by a START_POST
3024 * script. In that case don't worry if the loading fails. */
3026 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3027 r = service_load_pid_file(s, !has_start_post);
3028 if (!has_start_post && r < 0) {
3029 r = service_demand_pid_file(s);
3030 if (r < 0 || !cgroup_good(s))
3031 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3035 service_search_main_pid(s);
3037 service_enter_start_post(s);
3040 case SERVICE_START_POST:
3041 if (f != SERVICE_SUCCESS) {
3042 service_enter_stop(s, f);
3049 r = service_load_pid_file(s, true);
3051 r = service_demand_pid_file(s);
3052 if (r < 0 || !cgroup_good(s))
3053 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3057 service_search_main_pid(s);
3059 service_enter_running(s, SERVICE_SUCCESS);
3062 case SERVICE_RELOAD:
3063 if (f == SERVICE_SUCCESS) {
3064 service_load_pid_file(s, true);
3065 service_search_main_pid(s);
3068 s->reload_result = f;
3069 service_enter_running(s, SERVICE_SUCCESS);
3073 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3076 case SERVICE_STOP_SIGTERM:
3077 case SERVICE_STOP_SIGKILL:
3078 if (main_pid_good(s) <= 0)
3079 service_enter_stop_post(s, f);
3081 /* If there is still a service
3082 * process around, wait until
3083 * that one quit, too */
3086 case SERVICE_STOP_POST:
3087 case SERVICE_FINAL_SIGTERM:
3088 case SERVICE_FINAL_SIGKILL:
3089 service_enter_dead(s, f, true);
3093 assert_not_reached("Uh, control process died at wrong time.");
3098 /* Notify clients about changed exit status */
3099 unit_add_to_dbus_queue(u);
3102 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3103 Service *s = SERVICE(u);
3106 assert(elapsed == 1);
3108 if (w == &s->watchdog_watch) {
3109 service_handle_watchdog(s);
3113 assert(w == &s->timer_watch);
3117 case SERVICE_START_PRE:
3119 log_warning("%s operation timed out. Terminating.", u->id);
3120 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3123 case SERVICE_START_POST:
3124 log_warning("%s operation timed out. Stopping.", u->id);
3125 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3128 case SERVICE_RELOAD:
3129 log_warning("%s operation timed out. Stopping.", u->id);
3130 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3131 service_enter_running(s, SERVICE_SUCCESS);
3135 log_warning("%s stopping timed out. Terminating.", u->id);
3136 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3139 case SERVICE_STOP_SIGTERM:
3140 if (s->exec_context.send_sigkill) {
3141 log_warning("%s stopping timed out. Killing.", u->id);
3142 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3144 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3145 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3150 case SERVICE_STOP_SIGKILL:
3151 /* Uh, we sent a SIGKILL and it is still not gone?
3152 * Must be something we cannot kill, so let's just be
3153 * weirded out and continue */
3155 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3156 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3159 case SERVICE_STOP_POST:
3160 log_warning("%s stopping timed out (2). Terminating.", u->id);
3161 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3164 case SERVICE_FINAL_SIGTERM:
3165 if (s->exec_context.send_sigkill) {
3166 log_warning("%s stopping timed out (2). Killing.", u->id);
3167 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3169 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3170 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3175 case SERVICE_FINAL_SIGKILL:
3176 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3177 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3180 case SERVICE_AUTO_RESTART:
3181 log_info("%s holdoff time over, scheduling restart.", u->id);
3182 service_enter_restart(s);
3186 assert_not_reached("Timeout at wrong time.");
3190 static void service_cgroup_notify_event(Unit *u) {
3191 Service *s = SERVICE(u);
3195 log_debug("%s: cgroup is empty", u->id);
3199 /* Waiting for SIGCHLD is usually more interesting,
3200 * because it includes return codes/signals. Which is
3201 * why we ignore the cgroup events for most cases,
3202 * except when we don't know pid which to expect the
3206 case SERVICE_START_POST:
3207 /* If we were hoping for the daemon to write its PID file,
3208 * we can give up now. */
3209 if (s->pid_file_pathspec) {
3210 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3211 service_unwatch_pid_file(s);
3212 if (s->state == SERVICE_START)
3213 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3215 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3219 case SERVICE_RUNNING:
3220 /* service_enter_running() will figure out what to do */
3221 service_enter_running(s, SERVICE_SUCCESS);
3224 case SERVICE_STOP_SIGTERM:
3225 case SERVICE_STOP_SIGKILL:
3227 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3228 service_enter_stop_post(s, SERVICE_SUCCESS);
3232 case SERVICE_FINAL_SIGTERM:
3233 case SERVICE_FINAL_SIGKILL:
3234 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3235 service_enter_dead(s, SERVICE_SUCCESS, true);
3244 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3245 Service *s = SERVICE(u);
3250 if (s->notify_access == NOTIFY_NONE) {
3251 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3252 u->id, (unsigned long) pid);
3256 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3257 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3258 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3262 log_debug("%s: Got message", u->id);
3264 /* Interpret MAINPID= */
3265 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3266 (s->state == SERVICE_START ||
3267 s->state == SERVICE_START_POST ||
3268 s->state == SERVICE_RUNNING ||
3269 s->state == SERVICE_RELOAD)) {
3271 if (parse_pid(e + 8, &pid) < 0)
3272 log_warning("Failed to parse notification message %s", e);
3274 log_debug("%s: got %s", u->id, e);
3275 service_set_main_pid(s, pid);
3279 /* Interpret READY= */
3280 if (s->type == SERVICE_NOTIFY &&
3281 s->state == SERVICE_START &&
3282 strv_find(tags, "READY=1")) {
3283 log_debug("%s: got READY=1", u->id);
3285 service_enter_start_post(s);
3288 /* Interpret STATUS= */
3289 e = strv_find_prefix(tags, "STATUS=");
3295 if (!utf8_is_valid(e+7)) {
3296 log_warning("Status message in notification is not UTF-8 clean.");
3302 log_error("Failed to allocate string.");
3306 log_debug("%s: got %s", u->id, e);
3308 free(s->status_text);
3311 free(s->status_text);
3312 s->status_text = NULL;
3316 if (strv_find(tags, "WATCHDOG=1")) {
3317 log_debug("%s: got WATCHDOG=1", u->id);
3318 service_reset_watchdog(s);
3321 /* Notify clients about changed status or main pid */
3322 unit_add_to_dbus_queue(u);
3325 #ifdef HAVE_SYSV_COMPAT
3328 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3332 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3333 r = errno == ENOENT ? 0 : -errno;
3338 char l[LINE_MAX], *t;
3339 char **parsed = NULL;
3341 if (!fgets(l, sizeof(l), f)) {
3346 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3351 if (*t != '$' && *t != '<')
3354 parsed = strv_split(t,WHITESPACE);
3355 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3356 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3359 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3361 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3363 char *dep = NULL, *name, **j;
3365 STRV_FOREACH (j, parsed+1) {
3374 if (sysv_translate_facility(name, NULL, &dep) < 0)
3377 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3392 static int service_enumerate(Manager *m) {
3396 char *path = NULL, *fpath = NULL, *name = NULL;
3397 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3404 if (m->running_as != MANAGER_SYSTEM)
3407 zero(runlevel_services);
3409 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3410 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3414 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3423 if (!(d = opendir(path))) {
3424 if (errno != ENOENT)
3425 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3430 while ((de = readdir(d))) {
3433 if (ignore_file(de->d_name))
3436 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3439 if (strlen(de->d_name) < 4)
3442 a = undecchar(de->d_name[1]);
3443 b = undecchar(de->d_name[2]);
3449 fpath = strjoin(path, "/", de->d_name, NULL);
3455 if (access(fpath, X_OK) < 0) {
3457 if (errno != ENOENT)
3458 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3464 if (!(name = sysv_translate_name(de->d_name + 3))) {
3469 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3470 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3474 if (de->d_name[0] == 'S') {
3476 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3477 SERVICE(service)->sysv_start_priority_from_rcnd =
3478 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3480 SERVICE(service)->sysv_enabled = true;
3483 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3486 if ((r = set_put(runlevel_services[i], service)) < 0)
3489 } else if (de->d_name[0] == 'K' &&
3490 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3491 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3493 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3496 if ((r = set_put(shutdown_services, service)) < 0)
3502 /* Now we loaded all stubs and are aware of the lowest
3503 start-up priority for all services, not let's actually load
3504 the services, this will also tell us which services are
3505 actually native now */
3506 manager_dispatch_load_queue(m);
3508 /* If this is a native service, rely on native ways to pull in
3509 * a service, don't pull it in via sysv rcN.d links. */
3510 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3511 SET_FOREACH(service, runlevel_services[i], j) {
3512 service = unit_follow_merge(service);
3514 if (service->fragment_path)
3517 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3521 /* We honour K links only for halt/reboot. For the normal
3522 * runlevels we assume the stop jobs will be implicitly added
3523 * by the core logic. Also, we don't really distinguish here
3524 * between the runlevels 0 and 6 and just add them to the
3525 * special shutdown target. On SUSE the boot.d/ runlevel is
3526 * also used for shutdown, so we add links for that too to the
3527 * shutdown target.*/
3528 SET_FOREACH(service, shutdown_services, j) {
3529 service = unit_follow_merge(service);
3531 if (service->fragment_path)
3534 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3541 sysv_facility_in_insserv_conf (m);
3549 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3550 set_free(runlevel_services[i]);
3551 set_free(shutdown_services);
3560 static void service_bus_name_owner_change(
3563 const char *old_owner,
3564 const char *new_owner) {
3566 Service *s = SERVICE(u);
3571 assert(streq(s->bus_name, name));
3572 assert(old_owner || new_owner);
3574 if (old_owner && new_owner)
3575 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3577 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3579 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3581 s->bus_name_good = !!new_owner;
3583 if (s->type == SERVICE_DBUS) {
3585 /* service_enter_running() will figure out what to
3587 if (s->state == SERVICE_RUNNING)
3588 service_enter_running(s, SERVICE_SUCCESS);
3589 else if (s->state == SERVICE_START && new_owner)
3590 service_enter_start_post(s);
3592 } else if (new_owner &&
3594 (s->state == SERVICE_START ||
3595 s->state == SERVICE_START_POST ||
3596 s->state == SERVICE_RUNNING ||
3597 s->state == SERVICE_RELOAD)) {
3599 /* Try to acquire PID from bus service */
3600 log_debug("Trying to acquire PID from D-Bus name...");
3602 bus_query_pid(u->manager, name);
3606 static void service_bus_query_pid_done(
3611 Service *s = SERVICE(u);
3616 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3618 if (s->main_pid <= 0 &&
3619 (s->state == SERVICE_START ||
3620 s->state == SERVICE_START_POST ||
3621 s->state == SERVICE_RUNNING ||
3622 s->state == SERVICE_RELOAD))
3623 service_set_main_pid(s, pid);
3626 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3631 /* This is called by the socket code when instantiating a new
3632 * service for a stream socket and the socket needs to be
3635 if (UNIT(s)->load_state != UNIT_LOADED)
3638 if (s->socket_fd >= 0)
3641 if (s->state != SERVICE_DEAD)
3645 s->got_socket_fd = true;
3647 unit_ref_set(&s->accept_socket, UNIT(sock));
3649 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3652 static void service_reset_failed(Unit *u) {
3653 Service *s = SERVICE(u);
3657 if (s->state == SERVICE_FAILED)
3658 service_set_state(s, SERVICE_DEAD);
3660 s->result = SERVICE_SUCCESS;
3661 s->reload_result = SERVICE_SUCCESS;
3663 RATELIMIT_RESET(s->start_limit);
3666 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3667 Service *s = SERVICE(u);
3669 Set *pid_set = NULL;
3673 if (s->main_pid <= 0 && who == KILL_MAIN) {
3674 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3678 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3679 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3683 if (who == KILL_CONTROL || who == KILL_ALL)
3684 if (s->control_pid > 0)
3685 if (kill(s->control_pid, signo) < 0)
3688 if (who == KILL_MAIN || who == KILL_ALL)
3689 if (s->main_pid > 0)
3690 if (kill(s->main_pid, signo) < 0)
3693 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3696 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3699 /* Exclude the control/main pid from being killed via the cgroup */
3700 if (s->control_pid > 0)
3701 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3706 if (s->main_pid > 0)
3707 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3711 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3713 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3724 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3725 [SERVICE_DEAD] = "dead",
3726 [SERVICE_START_PRE] = "start-pre",
3727 [SERVICE_START] = "start",
3728 [SERVICE_START_POST] = "start-post",
3729 [SERVICE_RUNNING] = "running",
3730 [SERVICE_EXITED] = "exited",
3731 [SERVICE_RELOAD] = "reload",
3732 [SERVICE_STOP] = "stop",
3733 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3734 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3735 [SERVICE_STOP_POST] = "stop-post",
3736 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3737 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3738 [SERVICE_FAILED] = "failed",
3739 [SERVICE_AUTO_RESTART] = "auto-restart",
3742 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3744 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3745 [SERVICE_RESTART_NO] = "no",
3746 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3747 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3748 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3749 [SERVICE_RESTART_ALWAYS] = "always"
3752 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3754 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3755 [SERVICE_SIMPLE] = "simple",
3756 [SERVICE_FORKING] = "forking",
3757 [SERVICE_ONESHOT] = "oneshot",
3758 [SERVICE_DBUS] = "dbus",
3759 [SERVICE_NOTIFY] = "notify",
3760 [SERVICE_IDLE] = "idle"
3763 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3765 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3766 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3767 [SERVICE_EXEC_START] = "ExecStart",
3768 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3769 [SERVICE_EXEC_RELOAD] = "ExecReload",
3770 [SERVICE_EXEC_STOP] = "ExecStop",
3771 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3774 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3776 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3777 [NOTIFY_NONE] = "none",
3778 [NOTIFY_MAIN] = "main",
3779 [NOTIFY_ALL] = "all"
3782 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3784 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3785 [SERVICE_SUCCESS] = "success",
3786 [SERVICE_FAILURE_RESOURCES] = "resources",
3787 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3788 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3789 [SERVICE_FAILURE_SIGNAL] = "signal",
3790 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3791 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3794 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3796 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3797 [SERVICE_START_LIMIT_NONE] = "none",
3798 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3799 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3800 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3802 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3804 const UnitVTable service_vtable = {
3805 .object_size = sizeof(Service),
3811 .init = service_init,
3812 .done = service_done,
3813 .load = service_load,
3815 .coldplug = service_coldplug,
3817 .dump = service_dump,
3819 .start = service_start,
3820 .stop = service_stop,
3821 .reload = service_reload,
3823 .can_reload = service_can_reload,
3825 .kill = service_kill,
3827 .serialize = service_serialize,
3828 .deserialize_item = service_deserialize_item,
3830 .active_state = service_active_state,
3831 .sub_state_to_string = service_sub_state_to_string,
3833 .check_gc = service_check_gc,
3834 .check_snapshot = service_check_snapshot,
3836 .sigchld_event = service_sigchld_event,
3837 .timer_event = service_timer_event,
3838 .fd_event = service_fd_event,
3840 .reset_failed = service_reset_failed,
3842 .cgroup_notify_empty = service_cgroup_notify_event,
3843 .notify_message = service_notify_message,
3845 .bus_name_owner_change = service_bus_name_owner_change,
3846 .bus_query_pid_done = service_bus_query_pid_done,
3848 .bus_interface = "org.freedesktop.systemd1.Service",
3849 .bus_message_handler = bus_service_message_handler,
3850 .bus_invalidating_properties = bus_service_invalidating_properties,
3852 #ifdef HAVE_SYSV_COMPAT
3853 .enumerate = service_enumerate,
3855 .status_message_formats = {
3856 .starting_stopping = {
3857 [0] = "Starting %s...",
3858 [1] = "Stopping %s...",
3860 .finished_start_job = {
3861 [JOB_DONE] = "Started %s.",
3862 [JOB_FAILED] = "Failed to start %s.",
3863 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3864 [JOB_TIMEOUT] = "Timed out starting %s.",
3866 .finished_stop_job = {
3867 [JOB_DONE] = "Stopped %s.",
3868 [JOB_FAILED] = "Stopped (with error) %s.",
3869 [JOB_TIMEOUT] = "Timed out stopping %s.",