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);
2261 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2262 /* Don't restart things if we are going down anyway */
2263 log_info("Stop job pending for unit, delaying automatic restart.");
2265 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
2272 /* Any units that are bound to this service must also be
2273 * restarted. We use JOB_RESTART (instead of the more obvious
2274 * JOB_START) here so that those dependency jobs will be added
2276 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2280 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2281 * it will be canceled as part of the service_stop() call that
2282 * is executed as part of JOB_RESTART. */
2284 log_debug("%s scheduled restart job.", UNIT(s)->id);
2288 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2289 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2291 dbus_error_free(&error);
2294 static void service_enter_reload(Service *s) {
2299 service_unwatch_control_pid(s);
2301 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2302 s->control_command_id = SERVICE_EXEC_RELOAD;
2304 r = service_spawn(s,
2308 !s->permissions_start_only,
2309 !s->root_directory_start_only,
2317 service_set_state(s, SERVICE_RELOAD);
2319 service_enter_running(s, SERVICE_SUCCESS);
2324 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2325 s->reload_result = SERVICE_FAILURE_RESOURCES;
2326 service_enter_running(s, SERVICE_SUCCESS);
2329 static void service_run_next_control(Service *s) {
2333 assert(s->control_command);
2334 assert(s->control_command->command_next);
2336 assert(s->control_command_id != SERVICE_EXEC_START);
2338 s->control_command = s->control_command->command_next;
2339 service_unwatch_control_pid(s);
2341 r = service_spawn(s,
2345 !s->permissions_start_only,
2346 !s->root_directory_start_only,
2347 s->control_command_id == SERVICE_EXEC_START_PRE ||
2348 s->control_command_id == SERVICE_EXEC_STOP_POST,
2358 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2360 if (s->state == SERVICE_START_PRE)
2361 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2362 else if (s->state == SERVICE_STOP)
2363 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2364 else if (s->state == SERVICE_STOP_POST)
2365 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2366 else if (s->state == SERVICE_RELOAD) {
2367 s->reload_result = SERVICE_FAILURE_RESOURCES;
2368 service_enter_running(s, SERVICE_SUCCESS);
2370 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2373 static void service_run_next_main(Service *s) {
2378 assert(s->main_command);
2379 assert(s->main_command->command_next);
2380 assert(s->type == SERVICE_ONESHOT);
2382 s->main_command = s->main_command->command_next;
2383 service_unwatch_main_pid(s);
2385 r = service_spawn(s,
2392 s->notify_access != NOTIFY_NONE,
2398 service_set_main_pid(s, pid);
2403 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2404 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2407 static int service_start_limit_test(Service *s) {
2410 if (ratelimit_test(&s->start_limit))
2413 switch (s->start_limit_action) {
2415 case SERVICE_START_LIMIT_NONE:
2416 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2419 case SERVICE_START_LIMIT_REBOOT: {
2423 dbus_error_init(&error);
2425 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2427 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2429 log_error("Failed to reboot: %s.", bus_error(&error, r));
2430 dbus_error_free(&error);
2436 case SERVICE_START_LIMIT_REBOOT_FORCE:
2437 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2438 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2441 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2442 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2443 reboot(RB_AUTOBOOT);
2447 log_error("start limit action=%i", s->start_limit_action);
2448 assert_not_reached("Unknown StartLimitAction.");
2454 static int service_start(Unit *u) {
2455 Service *s = SERVICE(u);
2460 /* We cannot fulfill this request right now, try again later
2462 if (s->state == SERVICE_STOP ||
2463 s->state == SERVICE_STOP_SIGTERM ||
2464 s->state == SERVICE_STOP_SIGKILL ||
2465 s->state == SERVICE_STOP_POST ||
2466 s->state == SERVICE_FINAL_SIGTERM ||
2467 s->state == SERVICE_FINAL_SIGKILL)
2470 /* Already on it! */
2471 if (s->state == SERVICE_START_PRE ||
2472 s->state == SERVICE_START ||
2473 s->state == SERVICE_START_POST)
2476 /* A service that will be restarted must be stopped first to
2477 * trigger BindsTo and/or OnFailure dependencies. If a user
2478 * does not want to wait for the holdoff time to elapse, the
2479 * service should be manually restarted, not started. */
2480 if (s->state == SERVICE_AUTO_RESTART) {
2481 log_warning("%s automatic restart is pending, must be stopped before issuing start request.", UNIT(s)->id);
2485 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2487 /* Make sure we don't enter a busy loop of some kind. */
2488 r = service_start_limit_test(s);
2490 service_notify_sockets_dead(s, true);
2494 s->result = SERVICE_SUCCESS;
2495 s->reload_result = SERVICE_SUCCESS;
2496 s->main_pid_known = false;
2497 s->main_pid_alien = false;
2498 s->forbid_restart = false;
2500 service_enter_start_pre(s);
2504 static int service_stop(Unit *u) {
2505 Service *s = SERVICE(u);
2509 /* Don't create restart jobs from here. */
2510 s->forbid_restart = true;
2513 if (s->state == SERVICE_STOP ||
2514 s->state == SERVICE_STOP_SIGTERM ||
2515 s->state == SERVICE_STOP_SIGKILL ||
2516 s->state == SERVICE_STOP_POST ||
2517 s->state == SERVICE_FINAL_SIGTERM ||
2518 s->state == SERVICE_FINAL_SIGKILL)
2521 /* A restart will be scheduled or is in progress. */
2522 if (s->state == SERVICE_AUTO_RESTART) {
2523 service_set_state(s, SERVICE_DEAD);
2527 /* If there's already something running we go directly into
2529 if (s->state == SERVICE_START_PRE ||
2530 s->state == SERVICE_START ||
2531 s->state == SERVICE_START_POST ||
2532 s->state == SERVICE_RELOAD) {
2533 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2537 assert(s->state == SERVICE_RUNNING ||
2538 s->state == SERVICE_EXITED);
2540 service_enter_stop(s, SERVICE_SUCCESS);
2544 static int service_reload(Unit *u) {
2545 Service *s = SERVICE(u);
2549 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2551 service_enter_reload(s);
2555 static bool service_can_reload(Unit *u) {
2556 Service *s = SERVICE(u);
2560 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2563 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2564 Service *s = SERVICE(u);
2570 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2571 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2572 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2574 if (s->control_pid > 0)
2575 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2577 if (s->main_pid_known && s->main_pid > 0)
2578 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2580 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2583 unit_serialize_item(u, f, "status-text", s->status_text);
2585 /* FIXME: There's a minor uncleanliness here: if there are
2586 * multiple commands attached here, we will start from the
2587 * first one again */
2588 if (s->control_command_id >= 0)
2589 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2591 if (s->socket_fd >= 0) {
2594 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2597 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2600 if (s->main_exec_status.pid > 0) {
2601 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2602 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2603 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2605 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2606 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2607 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2610 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2611 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2616 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2617 Service *s = SERVICE(u);
2624 if (streq(key, "state")) {
2627 if ((state = service_state_from_string(value)) < 0)
2628 log_debug("Failed to parse state value %s", value);
2630 s->deserialized_state = state;
2631 } else if (streq(key, "result")) {
2634 f = service_result_from_string(value);
2636 log_debug("Failed to parse result value %s", value);
2637 else if (f != SERVICE_SUCCESS)
2640 } else if (streq(key, "reload-result")) {
2643 f = service_result_from_string(value);
2645 log_debug("Failed to parse reload result value %s", value);
2646 else if (f != SERVICE_SUCCESS)
2647 s->reload_result = f;
2649 } else if (streq(key, "control-pid")) {
2652 if (parse_pid(value, &pid) < 0)
2653 log_debug("Failed to parse control-pid value %s", value);
2655 s->control_pid = pid;
2656 } else if (streq(key, "main-pid")) {
2659 if (parse_pid(value, &pid) < 0)
2660 log_debug("Failed to parse main-pid value %s", value);
2662 service_set_main_pid(s, (pid_t) pid);
2663 } else if (streq(key, "main-pid-known")) {
2666 if ((b = parse_boolean(value)) < 0)
2667 log_debug("Failed to parse main-pid-known value %s", value);
2669 s->main_pid_known = b;
2670 } else if (streq(key, "status-text")) {
2673 if ((t = strdup(value))) {
2674 free(s->status_text);
2678 } else if (streq(key, "control-command")) {
2679 ServiceExecCommand id;
2681 if ((id = service_exec_command_from_string(value)) < 0)
2682 log_debug("Failed to parse exec-command value %s", value);
2684 s->control_command_id = id;
2685 s->control_command = s->exec_command[id];
2687 } else if (streq(key, "socket-fd")) {
2690 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2691 log_debug("Failed to parse socket-fd value %s", value);
2694 if (s->socket_fd >= 0)
2695 close_nointr_nofail(s->socket_fd);
2696 s->socket_fd = fdset_remove(fds, fd);
2698 } else if (streq(key, "main-exec-status-pid")) {
2701 if (parse_pid(value, &pid) < 0)
2702 log_debug("Failed to parse main-exec-status-pid value %s", value);
2704 s->main_exec_status.pid = pid;
2705 } else if (streq(key, "main-exec-status-code")) {
2708 if (safe_atoi(value, &i) < 0)
2709 log_debug("Failed to parse main-exec-status-code value %s", value);
2711 s->main_exec_status.code = i;
2712 } else if (streq(key, "main-exec-status-status")) {
2715 if (safe_atoi(value, &i) < 0)
2716 log_debug("Failed to parse main-exec-status-status value %s", value);
2718 s->main_exec_status.status = i;
2719 } else if (streq(key, "main-exec-status-start"))
2720 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2721 else if (streq(key, "main-exec-status-exit"))
2722 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2723 else if (streq(key, "watchdog-timestamp"))
2724 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2726 log_debug("Unknown serialization key '%s'", key);
2731 static UnitActiveState service_active_state(Unit *u) {
2732 const UnitActiveState *table;
2736 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2738 return table[SERVICE(u)->state];
2741 static const char *service_sub_state_to_string(Unit *u) {
2744 return service_state_to_string(SERVICE(u)->state);
2747 static bool service_check_gc(Unit *u) {
2748 Service *s = SERVICE(u);
2752 /* Never clean up services that still have a process around,
2753 * even if the service is formally dead. */
2754 if (cgroup_good(s) > 0 ||
2755 main_pid_good(s) > 0 ||
2756 control_pid_good(s) > 0)
2759 #ifdef HAVE_SYSV_COMPAT
2767 static bool service_check_snapshot(Unit *u) {
2768 Service *s = SERVICE(u);
2772 return !s->got_socket_fd;
2775 static int service_retry_pid_file(Service *s) {
2778 assert(s->pid_file);
2779 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2781 r = service_load_pid_file(s, false);
2785 service_unwatch_pid_file(s);
2787 service_enter_running(s, SERVICE_SUCCESS);
2791 static int service_watch_pid_file(Service *s) {
2794 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2795 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2799 /* the pidfile might have appeared just before we set the watch */
2800 service_retry_pid_file(s);
2804 log_error("Failed to set a watch for %s's PID file %s: %s",
2805 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2806 service_unwatch_pid_file(s);
2810 static int service_demand_pid_file(Service *s) {
2813 assert(s->pid_file);
2814 assert(!s->pid_file_pathspec);
2816 ps = new0(PathSpec, 1);
2820 ps->path = strdup(s->pid_file);
2826 path_kill_slashes(ps->path);
2828 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2829 * keep their PID file open all the time. */
2830 ps->type = PATH_MODIFIED;
2831 ps->inotify_fd = -1;
2833 s->pid_file_pathspec = ps;
2835 return service_watch_pid_file(s);
2838 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2839 Service *s = SERVICE(u);
2843 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2844 assert(s->pid_file_pathspec);
2845 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2847 log_debug("inotify event for %s", u->id);
2849 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2852 if (service_retry_pid_file(s) == 0)
2855 if (service_watch_pid_file(s) < 0)
2860 service_unwatch_pid_file(s);
2861 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2864 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2865 Service *s = SERVICE(u);
2871 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2872 f = SERVICE_SUCCESS;
2873 else if (code == CLD_EXITED)
2874 f = SERVICE_FAILURE_EXIT_CODE;
2875 else if (code == CLD_KILLED)
2876 f = SERVICE_FAILURE_SIGNAL;
2877 else if (code == CLD_DUMPED)
2878 f = SERVICE_FAILURE_CORE_DUMP;
2880 assert_not_reached("Unknown code");
2882 if (s->main_pid == pid) {
2883 /* Forking services may occasionally move to a new PID.
2884 * As long as they update the PID file before exiting the old
2885 * PID, they're fine. */
2886 if (service_load_pid_file(s, false) == 0)
2890 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2892 /* If this is not a forking service than the main
2893 * process got started and hence we copy the exit
2894 * status so that it is recorded both as main and as
2895 * control process exit status */
2896 if (s->main_command) {
2897 s->main_command->exec_status = s->main_exec_status;
2899 if (s->main_command->ignore)
2900 f = SERVICE_SUCCESS;
2903 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2904 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2906 if (f != SERVICE_SUCCESS)
2909 if (s->main_command &&
2910 s->main_command->command_next &&
2911 f == SERVICE_SUCCESS) {
2913 /* There is another command to *
2914 * execute, so let's do that. */
2916 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2917 service_run_next_main(s);
2921 /* The service exited, so the service is officially
2923 s->main_command = NULL;
2927 case SERVICE_START_POST:
2928 case SERVICE_RELOAD:
2930 /* Need to wait until the operation is
2935 if (s->type == SERVICE_ONESHOT) {
2936 /* This was our main goal, so let's go on */
2937 if (f == SERVICE_SUCCESS)
2938 service_enter_start_post(s);
2940 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2943 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2948 case SERVICE_RUNNING:
2949 service_enter_running(s, f);
2952 case SERVICE_STOP_SIGTERM:
2953 case SERVICE_STOP_SIGKILL:
2955 if (!control_pid_good(s))
2956 service_enter_stop_post(s, f);
2958 /* If there is still a control process, wait for that first */
2962 assert_not_reached("Uh, main process died at wrong time.");
2966 } else if (s->control_pid == pid) {
2970 if (s->control_command) {
2971 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2973 if (s->control_command->ignore)
2974 f = SERVICE_SUCCESS;
2977 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2978 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2980 if (f != SERVICE_SUCCESS)
2983 /* Immediately get rid of the cgroup, so that the
2984 * kernel doesn't delay the cgroup empty messages for
2985 * the service cgroup any longer than necessary */
2986 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2988 if (s->control_command &&
2989 s->control_command->command_next &&
2990 f == SERVICE_SUCCESS) {
2992 /* There is another command to *
2993 * execute, so let's do that. */
2995 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2996 service_run_next_control(s);
2999 /* No further commands for this step, so let's
3000 * figure out what to do next */
3002 s->control_command = NULL;
3003 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3005 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
3009 case SERVICE_START_PRE:
3010 if (f == SERVICE_SUCCESS)
3011 service_enter_start(s);
3013 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3017 assert(s->type == SERVICE_FORKING);
3019 if (f != SERVICE_SUCCESS) {
3020 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3025 bool has_start_post;
3028 /* Let's try to load the pid file here if we can.
3029 * The PID file might actually be created by a START_POST
3030 * script. In that case don't worry if the loading fails. */
3032 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3033 r = service_load_pid_file(s, !has_start_post);
3034 if (!has_start_post && r < 0) {
3035 r = service_demand_pid_file(s);
3036 if (r < 0 || !cgroup_good(s))
3037 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3041 service_search_main_pid(s);
3043 service_enter_start_post(s);
3046 case SERVICE_START_POST:
3047 if (f != SERVICE_SUCCESS) {
3048 service_enter_stop(s, f);
3055 r = service_load_pid_file(s, true);
3057 r = service_demand_pid_file(s);
3058 if (r < 0 || !cgroup_good(s))
3059 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3063 service_search_main_pid(s);
3065 service_enter_running(s, SERVICE_SUCCESS);
3068 case SERVICE_RELOAD:
3069 if (f == SERVICE_SUCCESS) {
3070 service_load_pid_file(s, true);
3071 service_search_main_pid(s);
3074 s->reload_result = f;
3075 service_enter_running(s, SERVICE_SUCCESS);
3079 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3082 case SERVICE_STOP_SIGTERM:
3083 case SERVICE_STOP_SIGKILL:
3084 if (main_pid_good(s) <= 0)
3085 service_enter_stop_post(s, f);
3087 /* If there is still a service
3088 * process around, wait until
3089 * that one quit, too */
3092 case SERVICE_STOP_POST:
3093 case SERVICE_FINAL_SIGTERM:
3094 case SERVICE_FINAL_SIGKILL:
3095 service_enter_dead(s, f, true);
3099 assert_not_reached("Uh, control process died at wrong time.");
3104 /* Notify clients about changed exit status */
3105 unit_add_to_dbus_queue(u);
3108 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3109 Service *s = SERVICE(u);
3112 assert(elapsed == 1);
3114 if (w == &s->watchdog_watch) {
3115 service_handle_watchdog(s);
3119 assert(w == &s->timer_watch);
3123 case SERVICE_START_PRE:
3125 log_warning("%s operation timed out. Terminating.", u->id);
3126 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3129 case SERVICE_START_POST:
3130 log_warning("%s operation timed out. Stopping.", u->id);
3131 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3134 case SERVICE_RELOAD:
3135 log_warning("%s operation timed out. Stopping.", u->id);
3136 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3137 service_enter_running(s, SERVICE_SUCCESS);
3141 log_warning("%s stopping timed out. Terminating.", u->id);
3142 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3145 case SERVICE_STOP_SIGTERM:
3146 if (s->exec_context.send_sigkill) {
3147 log_warning("%s stopping timed out. Killing.", u->id);
3148 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3150 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3151 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3156 case SERVICE_STOP_SIGKILL:
3157 /* Uh, we sent a SIGKILL and it is still not gone?
3158 * Must be something we cannot kill, so let's just be
3159 * weirded out and continue */
3161 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3162 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3165 case SERVICE_STOP_POST:
3166 log_warning("%s stopping timed out (2). Terminating.", u->id);
3167 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3170 case SERVICE_FINAL_SIGTERM:
3171 if (s->exec_context.send_sigkill) {
3172 log_warning("%s stopping timed out (2). Killing.", u->id);
3173 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3175 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3176 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3181 case SERVICE_FINAL_SIGKILL:
3182 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3183 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3186 case SERVICE_AUTO_RESTART:
3187 log_info("%s holdoff time over, scheduling restart.", u->id);
3188 service_enter_restart(s);
3192 assert_not_reached("Timeout at wrong time.");
3196 static void service_cgroup_notify_event(Unit *u) {
3197 Service *s = SERVICE(u);
3201 log_debug("%s: cgroup is empty", u->id);
3205 /* Waiting for SIGCHLD is usually more interesting,
3206 * because it includes return codes/signals. Which is
3207 * why we ignore the cgroup events for most cases,
3208 * except when we don't know pid which to expect the
3212 case SERVICE_START_POST:
3213 /* If we were hoping for the daemon to write its PID file,
3214 * we can give up now. */
3215 if (s->pid_file_pathspec) {
3216 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3217 service_unwatch_pid_file(s);
3218 if (s->state == SERVICE_START)
3219 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3221 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3225 case SERVICE_RUNNING:
3226 /* service_enter_running() will figure out what to do */
3227 service_enter_running(s, SERVICE_SUCCESS);
3230 case SERVICE_STOP_SIGTERM:
3231 case SERVICE_STOP_SIGKILL:
3233 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3234 service_enter_stop_post(s, SERVICE_SUCCESS);
3238 case SERVICE_FINAL_SIGTERM:
3239 case SERVICE_FINAL_SIGKILL:
3240 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3241 service_enter_dead(s, SERVICE_SUCCESS, true);
3250 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3251 Service *s = SERVICE(u);
3256 if (s->notify_access == NOTIFY_NONE) {
3257 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3258 u->id, (unsigned long) pid);
3262 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3263 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3264 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3268 log_debug("%s: Got message", u->id);
3270 /* Interpret MAINPID= */
3271 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3272 (s->state == SERVICE_START ||
3273 s->state == SERVICE_START_POST ||
3274 s->state == SERVICE_RUNNING ||
3275 s->state == SERVICE_RELOAD)) {
3277 if (parse_pid(e + 8, &pid) < 0)
3278 log_warning("Failed to parse notification message %s", e);
3280 log_debug("%s: got %s", u->id, e);
3281 service_set_main_pid(s, pid);
3285 /* Interpret READY= */
3286 if (s->type == SERVICE_NOTIFY &&
3287 s->state == SERVICE_START &&
3288 strv_find(tags, "READY=1")) {
3289 log_debug("%s: got READY=1", u->id);
3291 service_enter_start_post(s);
3294 /* Interpret STATUS= */
3295 e = strv_find_prefix(tags, "STATUS=");
3301 if (!utf8_is_valid(e+7)) {
3302 log_warning("Status message in notification is not UTF-8 clean.");
3308 log_error("Failed to allocate string.");
3312 log_debug("%s: got %s", u->id, e);
3314 free(s->status_text);
3317 free(s->status_text);
3318 s->status_text = NULL;
3322 if (strv_find(tags, "WATCHDOG=1")) {
3323 log_debug("%s: got WATCHDOG=1", u->id);
3324 service_reset_watchdog(s);
3327 /* Notify clients about changed status or main pid */
3328 unit_add_to_dbus_queue(u);
3331 #ifdef HAVE_SYSV_COMPAT
3334 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3338 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3339 r = errno == ENOENT ? 0 : -errno;
3344 char l[LINE_MAX], *t;
3345 char **parsed = NULL;
3347 if (!fgets(l, sizeof(l), f)) {
3352 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3357 if (*t != '$' && *t != '<')
3360 parsed = strv_split(t,WHITESPACE);
3361 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3362 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3365 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3367 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3369 char *dep = NULL, *name, **j;
3371 STRV_FOREACH (j, parsed+1) {
3380 if (sysv_translate_facility(name, NULL, &dep) < 0)
3383 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3398 static int service_enumerate(Manager *m) {
3402 char *path = NULL, *fpath = NULL, *name = NULL;
3403 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3410 if (m->running_as != MANAGER_SYSTEM)
3413 zero(runlevel_services);
3415 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3416 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3420 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3429 if (!(d = opendir(path))) {
3430 if (errno != ENOENT)
3431 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3436 while ((de = readdir(d))) {
3439 if (ignore_file(de->d_name))
3442 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3445 if (strlen(de->d_name) < 4)
3448 a = undecchar(de->d_name[1]);
3449 b = undecchar(de->d_name[2]);
3455 fpath = strjoin(path, "/", de->d_name, NULL);
3461 if (access(fpath, X_OK) < 0) {
3463 if (errno != ENOENT)
3464 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3470 if (!(name = sysv_translate_name(de->d_name + 3))) {
3475 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3476 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3480 if (de->d_name[0] == 'S') {
3482 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3483 SERVICE(service)->sysv_start_priority_from_rcnd =
3484 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3486 SERVICE(service)->sysv_enabled = true;
3489 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3492 if ((r = set_put(runlevel_services[i], service)) < 0)
3495 } else if (de->d_name[0] == 'K' &&
3496 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3497 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3499 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3502 if ((r = set_put(shutdown_services, service)) < 0)
3508 /* Now we loaded all stubs and are aware of the lowest
3509 start-up priority for all services, not let's actually load
3510 the services, this will also tell us which services are
3511 actually native now */
3512 manager_dispatch_load_queue(m);
3514 /* If this is a native service, rely on native ways to pull in
3515 * a service, don't pull it in via sysv rcN.d links. */
3516 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3517 SET_FOREACH(service, runlevel_services[i], j) {
3518 service = unit_follow_merge(service);
3520 if (service->fragment_path)
3523 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3527 /* We honour K links only for halt/reboot. For the normal
3528 * runlevels we assume the stop jobs will be implicitly added
3529 * by the core logic. Also, we don't really distinguish here
3530 * between the runlevels 0 and 6 and just add them to the
3531 * special shutdown target. On SUSE the boot.d/ runlevel is
3532 * also used for shutdown, so we add links for that too to the
3533 * shutdown target.*/
3534 SET_FOREACH(service, shutdown_services, j) {
3535 service = unit_follow_merge(service);
3537 if (service->fragment_path)
3540 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3547 sysv_facility_in_insserv_conf (m);
3555 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3556 set_free(runlevel_services[i]);
3557 set_free(shutdown_services);
3566 static void service_bus_name_owner_change(
3569 const char *old_owner,
3570 const char *new_owner) {
3572 Service *s = SERVICE(u);
3577 assert(streq(s->bus_name, name));
3578 assert(old_owner || new_owner);
3580 if (old_owner && new_owner)
3581 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3583 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3585 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3587 s->bus_name_good = !!new_owner;
3589 if (s->type == SERVICE_DBUS) {
3591 /* service_enter_running() will figure out what to
3593 if (s->state == SERVICE_RUNNING)
3594 service_enter_running(s, SERVICE_SUCCESS);
3595 else if (s->state == SERVICE_START && new_owner)
3596 service_enter_start_post(s);
3598 } else if (new_owner &&
3600 (s->state == SERVICE_START ||
3601 s->state == SERVICE_START_POST ||
3602 s->state == SERVICE_RUNNING ||
3603 s->state == SERVICE_RELOAD)) {
3605 /* Try to acquire PID from bus service */
3606 log_debug("Trying to acquire PID from D-Bus name...");
3608 bus_query_pid(u->manager, name);
3612 static void service_bus_query_pid_done(
3617 Service *s = SERVICE(u);
3622 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3624 if (s->main_pid <= 0 &&
3625 (s->state == SERVICE_START ||
3626 s->state == SERVICE_START_POST ||
3627 s->state == SERVICE_RUNNING ||
3628 s->state == SERVICE_RELOAD))
3629 service_set_main_pid(s, pid);
3632 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3637 /* This is called by the socket code when instantiating a new
3638 * service for a stream socket and the socket needs to be
3641 if (UNIT(s)->load_state != UNIT_LOADED)
3644 if (s->socket_fd >= 0)
3647 if (s->state != SERVICE_DEAD)
3651 s->got_socket_fd = true;
3653 unit_ref_set(&s->accept_socket, UNIT(sock));
3655 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3658 static void service_reset_failed(Unit *u) {
3659 Service *s = SERVICE(u);
3663 if (s->state == SERVICE_FAILED)
3664 service_set_state(s, SERVICE_DEAD);
3666 s->result = SERVICE_SUCCESS;
3667 s->reload_result = SERVICE_SUCCESS;
3669 RATELIMIT_RESET(s->start_limit);
3672 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3673 Service *s = SERVICE(u);
3675 Set *pid_set = NULL;
3679 if (s->main_pid <= 0 && who == KILL_MAIN) {
3680 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3684 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3685 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3689 if (who == KILL_CONTROL || who == KILL_ALL)
3690 if (s->control_pid > 0)
3691 if (kill(s->control_pid, signo) < 0)
3694 if (who == KILL_MAIN || who == KILL_ALL)
3695 if (s->main_pid > 0)
3696 if (kill(s->main_pid, signo) < 0)
3699 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3702 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3705 /* Exclude the control/main pid from being killed via the cgroup */
3706 if (s->control_pid > 0)
3707 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3712 if (s->main_pid > 0)
3713 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3717 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3719 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3730 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3731 [SERVICE_DEAD] = "dead",
3732 [SERVICE_START_PRE] = "start-pre",
3733 [SERVICE_START] = "start",
3734 [SERVICE_START_POST] = "start-post",
3735 [SERVICE_RUNNING] = "running",
3736 [SERVICE_EXITED] = "exited",
3737 [SERVICE_RELOAD] = "reload",
3738 [SERVICE_STOP] = "stop",
3739 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3740 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3741 [SERVICE_STOP_POST] = "stop-post",
3742 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3743 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3744 [SERVICE_FAILED] = "failed",
3745 [SERVICE_AUTO_RESTART] = "auto-restart",
3748 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3750 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3751 [SERVICE_RESTART_NO] = "no",
3752 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3753 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3754 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3755 [SERVICE_RESTART_ALWAYS] = "always"
3758 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3760 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3761 [SERVICE_SIMPLE] = "simple",
3762 [SERVICE_FORKING] = "forking",
3763 [SERVICE_ONESHOT] = "oneshot",
3764 [SERVICE_DBUS] = "dbus",
3765 [SERVICE_NOTIFY] = "notify",
3766 [SERVICE_IDLE] = "idle"
3769 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3771 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3772 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3773 [SERVICE_EXEC_START] = "ExecStart",
3774 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3775 [SERVICE_EXEC_RELOAD] = "ExecReload",
3776 [SERVICE_EXEC_STOP] = "ExecStop",
3777 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3780 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3782 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3783 [NOTIFY_NONE] = "none",
3784 [NOTIFY_MAIN] = "main",
3785 [NOTIFY_ALL] = "all"
3788 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3790 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3791 [SERVICE_SUCCESS] = "success",
3792 [SERVICE_FAILURE_RESOURCES] = "resources",
3793 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3794 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3795 [SERVICE_FAILURE_SIGNAL] = "signal",
3796 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3797 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3800 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3802 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3803 [SERVICE_START_LIMIT_NONE] = "none",
3804 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3805 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3806 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3808 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3810 const UnitVTable service_vtable = {
3811 .object_size = sizeof(Service),
3817 .init = service_init,
3818 .done = service_done,
3819 .load = service_load,
3821 .coldplug = service_coldplug,
3823 .dump = service_dump,
3825 .start = service_start,
3826 .stop = service_stop,
3827 .reload = service_reload,
3829 .can_reload = service_can_reload,
3831 .kill = service_kill,
3833 .serialize = service_serialize,
3834 .deserialize_item = service_deserialize_item,
3836 .active_state = service_active_state,
3837 .sub_state_to_string = service_sub_state_to_string,
3839 .check_gc = service_check_gc,
3840 .check_snapshot = service_check_snapshot,
3842 .sigchld_event = service_sigchld_event,
3843 .timer_event = service_timer_event,
3844 .fd_event = service_fd_event,
3846 .reset_failed = service_reset_failed,
3848 .cgroup_notify_empty = service_cgroup_notify_event,
3849 .notify_message = service_notify_message,
3851 .bus_name_owner_change = service_bus_name_owner_change,
3852 .bus_query_pid_done = service_bus_query_pid_done,
3854 .bus_interface = "org.freedesktop.systemd1.Service",
3855 .bus_message_handler = bus_service_message_handler,
3856 .bus_invalidating_properties = bus_service_invalidating_properties,
3858 #ifdef HAVE_SYSV_COMPAT
3859 .enumerate = service_enumerate,
3861 .status_message_formats = {
3862 .starting_stopping = {
3863 [0] = "Starting %s...",
3864 [1] = "Stopping %s...",
3866 .finished_start_job = {
3867 [JOB_DONE] = "Started %s.",
3868 [JOB_FAILED] = "Failed to start %s.",
3869 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3870 [JOB_TIMEOUT] = "Timed out starting %s.",
3872 .finished_stop_job = {
3873 [JOB_DONE] = "Stopped %s.",
3874 [JOB_FAILED] = "Stopped (with error) %s.",
3875 [JOB_TIMEOUT] = "Timed out stopping %s.",