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 "unit-printf.h"
37 #include "dbus-service.h"
39 #include "bus-errors.h"
40 #include "exit-status.h"
42 #include "path-util.h"
46 #ifdef HAVE_SYSV_COMPAT
48 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
50 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 },
67 /* Standard SysV runlevels for shutdown */
68 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
69 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
71 /* Note that the order here matters, as we read the
72 directories in this order, and we want to make sure that
73 sysv_start_priority is known when we first load the
74 unit. And that value we only know from S links. Hence
75 UP must be read before DOWN */
78 #define RUNLEVELS_UP "12345"
81 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
82 [SERVICE_DEAD] = UNIT_INACTIVE,
83 [SERVICE_START_PRE] = UNIT_ACTIVATING,
84 [SERVICE_START] = UNIT_ACTIVATING,
85 [SERVICE_START_POST] = UNIT_ACTIVATING,
86 [SERVICE_RUNNING] = UNIT_ACTIVE,
87 [SERVICE_EXITED] = UNIT_ACTIVE,
88 [SERVICE_RELOAD] = UNIT_RELOADING,
89 [SERVICE_STOP] = UNIT_DEACTIVATING,
90 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
91 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
92 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
93 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
94 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
95 [SERVICE_FAILED] = UNIT_FAILED,
96 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
99 /* For Type=idle we never want to delay any other jobs, hence we
100 * consider idle jobs active as soon as we start working on them */
101 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
102 [SERVICE_DEAD] = UNIT_INACTIVE,
103 [SERVICE_START_PRE] = UNIT_ACTIVE,
104 [SERVICE_START] = UNIT_ACTIVE,
105 [SERVICE_START_POST] = UNIT_ACTIVE,
106 [SERVICE_RUNNING] = UNIT_ACTIVE,
107 [SERVICE_EXITED] = UNIT_ACTIVE,
108 [SERVICE_RELOAD] = UNIT_RELOADING,
109 [SERVICE_STOP] = UNIT_DEACTIVATING,
110 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
111 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
112 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
113 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
114 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
115 [SERVICE_FAILED] = UNIT_FAILED,
116 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
119 static void service_init(Unit *u) {
120 Service *s = SERVICE(u);
123 assert(u->load_state == UNIT_STUB);
125 s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
126 s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
127 s->restart_usec = DEFAULT_RESTART_USEC;
128 s->type = _SERVICE_TYPE_INVALID;
130 watch_init(&s->watchdog_watch);
131 watch_init(&s->timer_watch);
133 #ifdef HAVE_SYSV_COMPAT
134 s->sysv_start_priority = -1;
135 s->sysv_start_priority_from_rcnd = -1;
138 s->guess_main_pid = true;
140 exec_context_init(&s->exec_context);
141 kill_context_init(&s->kill_context);
143 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
145 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
148 static void service_unwatch_control_pid(Service *s) {
151 if (s->control_pid <= 0)
154 unit_unwatch_pid(UNIT(s), s->control_pid);
158 static void service_unwatch_main_pid(Service *s) {
161 if (s->main_pid <= 0)
164 unit_unwatch_pid(UNIT(s), s->main_pid);
168 static void service_unwatch_pid_file(Service *s) {
169 if (!s->pid_file_pathspec)
172 log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
173 UNIT(s)->id, s->pid_file_pathspec->path);
174 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
175 path_spec_done(s->pid_file_pathspec);
176 free(s->pid_file_pathspec);
177 s->pid_file_pathspec = NULL;
180 static int service_set_main_pid(Service *s, pid_t pid) {
192 s->main_pid_known = true;
194 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
195 log_warning_unit(UNIT(s)->id,
196 "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
197 UNIT(s)->id, (unsigned long) pid);
199 s->main_pid_alien = true;
201 s->main_pid_alien = false;
203 exec_status_start(&s->main_exec_status, pid);
208 static void service_close_socket_fd(Service *s) {
211 if (s->socket_fd < 0)
214 close_nointr_nofail(s->socket_fd);
218 static void service_connection_unref(Service *s) {
221 if (!UNIT_DEREF(s->accept_socket))
224 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
225 unit_ref_unset(&s->accept_socket);
228 static void service_stop_watchdog(Service *s) {
231 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
232 s->watchdog_timestamp.realtime = 0;
233 s->watchdog_timestamp.monotonic = 0;
236 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
238 static void service_handle_watchdog(Service *s) {
244 if (s->watchdog_usec == 0)
247 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
248 if (offset >= s->watchdog_usec) {
249 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
250 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
254 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->watchdog_usec - offset, &s->watchdog_watch);
256 log_warning_unit(UNIT(s)->id,
257 "%s failed to install watchdog timer: %s",
258 UNIT(s)->id, strerror(-r));
261 static void service_reset_watchdog(Service *s) {
264 dual_timestamp_get(&s->watchdog_timestamp);
265 service_handle_watchdog(s);
268 static void service_done(Unit *u) {
269 Service *s = SERVICE(u);
276 #ifdef HAVE_SYSV_COMPAT
277 free(s->sysv_runlevels);
278 s->sysv_runlevels = NULL;
281 free(s->status_text);
282 s->status_text = NULL;
284 exec_context_done(&s->exec_context);
285 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
286 s->control_command = NULL;
287 s->main_command = NULL;
289 set_free(s->restart_ignore_status.code);
290 s->restart_ignore_status.code = NULL;
291 set_free(s->restart_ignore_status.signal);
292 s->restart_ignore_status.signal = NULL;
294 set_free(s->success_status.code);
295 s->success_status.code = NULL;
296 set_free(s->success_status.signal);
297 s->success_status.signal = 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 r = new(char, strlen(name) + sizeof(".service"));
329 if (endswith(name, ".sh"))
330 /* Drop .sh suffix */
331 strcpy(stpcpy(r, name) - 3, ".service");
332 if (startswith(name, "rc."))
333 /* Drop rc. prefix */
334 strcpy(stpcpy(r, name + 3), ".service");
336 /* Normal init script name */
337 strcpy(stpcpy(r, name), ".service");
342 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
344 /* We silently ignore the $ prefix here. According to the LSB
345 * spec it simply indicates whether something is a
346 * standardized name or a distribution-specific one. Since we
347 * just follow what already exists and do not introduce new
348 * uses or names we don't care who introduced a new name. */
350 static const char * const table[] = {
351 /* LSB defined facilities */
353 "network", SPECIAL_NETWORK_TARGET,
354 "named", SPECIAL_NSS_LOOKUP_TARGET,
355 "portmap", SPECIAL_RPCBIND_TARGET,
356 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
358 "time", SPECIAL_TIME_SYNC_TARGET,
368 n = *name == '$' ? name + 1 : name;
370 for (i = 0; i < ELEMENTSOF(table); i += 2) {
372 if (!streq(table[i], n))
378 r = strdup(table[i+1]);
385 /* If we don't know this name, fallback heuristics to figure
386 * out whether something is a target or a service alias. */
389 if (!unit_prefix_is_valid(n))
392 /* Facilities starting with $ are most likely targets */
393 r = unit_name_build(n, NULL, ".target");
394 } else if (filename && streq(name, filename))
395 /* Names equaling the file name of the services are redundant */
398 /* Everything else we assume to be normal service names */
399 r = sysv_translate_name(n);
410 static int sysv_fix_order(Service *s) {
416 if (s->sysv_start_priority < 0)
419 /* For each pair of services where at least one lacks a LSB
420 * header, we use the start priority value to order things. */
422 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
425 bool special_s, special_t;
432 if (UNIT(t)->load_state != UNIT_LOADED)
435 if (t->sysv_start_priority < 0)
438 /* If both units have modern headers we don't care
439 * about the priorities */
440 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
441 (UNIT(t)->fragment_path || t->sysv_has_lsb))
444 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
445 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
447 if (special_t && !special_s)
449 else if (special_s && !special_t)
451 else if (t->sysv_start_priority < s->sysv_start_priority)
453 else if (t->sysv_start_priority > s->sysv_start_priority)
458 /* FIXME: Maybe we should compare the name here lexicographically? */
460 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
467 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
470 if (!(c = new0(ExecCommand, 1)))
473 if (!(c->path = strdup(path))) {
478 if (!(c->argv = strv_new(path, arg1, NULL))) {
487 static int sysv_exec_commands(Service *s, const bool supports_reload) {
492 assert(UNIT(s)->source_path);
494 c = exec_command_new(UNIT(s)->source_path, "start");
497 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
499 c = exec_command_new(UNIT(s)->source_path, "stop");
502 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
504 if (supports_reload) {
505 c = exec_command_new(UNIT(s)->source_path, "reload");
508 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
514 static bool usage_contains_reload(const char *line) {
515 return (strcasestr(line, "{reload|") ||
516 strcasestr(line, "{reload}") ||
517 strcasestr(line, "{reload\"") ||
518 strcasestr(line, "|reload|") ||
519 strcasestr(line, "|reload}") ||
520 strcasestr(line, "|reload\""));
523 static int service_load_sysv_path(Service *s, const char *path) {
535 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
537 bool supports_reload = false;
544 f = fopen(path, "re");
546 r = errno == ENOENT ? 0 : -errno;
550 if (fstat(fileno(f), &st) < 0) {
555 free(u->source_path);
556 u->source_path = strdup(path);
557 if (!u->source_path) {
561 u->source_mtime = timespec_load(&st.st_mtim);
563 if (null_or_empty(&st)) {
564 u->load_state = UNIT_MASKED;
572 char l[LINE_MAX], *t;
574 if (!fgets(l, sizeof(l), f)) {
579 log_error_unit(u->id,
580 "Failed to read configuration file '%s': %s",
589 /* Try to figure out whether this init script supports
590 * the reload operation. This heuristic looks for
591 * "Usage" lines which include the reload option. */
592 if ( state == USAGE_CONTINUATION ||
593 (state == NORMAL && strcasestr(t, "usage"))) {
594 if (usage_contains_reload(t)) {
595 supports_reload = true;
597 } else if (t[strlen(t)-1] == '\\')
598 state = USAGE_CONTINUATION;
606 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
608 s->sysv_has_lsb = true;
612 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
618 t += strspn(t, WHITESPACE);
620 if (state == NORMAL) {
622 /* Try to parse Red Hat style chkconfig headers */
624 if (startswith_no_case(t, "chkconfig:")) {
626 char runlevels[16], *k;
630 if (sscanf(t+10, "%15s %i %*i",
632 &start_priority) != 2) {
634 log_warning_unit(u->id,
635 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
640 /* A start priority gathered from the
641 * symlink farms is preferred over the
642 * data from the LSB header. */
643 if (start_priority < 0 || start_priority > 99)
644 log_warning_unit(u->id,
645 "[%s:%u] Start priority out of range. Ignoring.",
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_unit(u->id,
696 "[%s:%u] PID file not absolute. Ignoring.",
701 if (!(fn = strdup(fn))) {
710 } else if (state == DESCRIPTION) {
712 /* Try to parse Red Hat style description
715 size_t k = strlen(t);
723 if ((j = strstrip(t)) && *j) {
726 if (chkconfig_description)
727 d = strjoin(chkconfig_description, " ", j, NULL);
736 free(chkconfig_description);
737 chkconfig_description = d;
740 } else if (state == LSB || state == LSB_DESCRIPTION) {
742 if (startswith_no_case(t, "Provides:")) {
748 FOREACH_WORD_QUOTED(w, z, t+9, i) {
751 if (!(n = strndup(w, z))) {
756 r = sysv_translate_facility(n, path_get_file_name(path), &m);
765 if (unit_name_to_type(m) == UNIT_SERVICE)
766 r = unit_add_name(u, m);
773 * indication that the
775 * now available. This
778 * targets do NOT pull
781 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
784 log_error_unit(u->id,
785 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
786 path, line, m, strerror(-r));
791 } else if (startswith_no_case(t, "Required-Start:") ||
792 startswith_no_case(t, "Should-Start:") ||
793 startswith_no_case(t, "X-Start-Before:") ||
794 startswith_no_case(t, "X-Start-After:")) {
800 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
803 if (!(n = strndup(w, z))) {
808 r = sysv_translate_facility(n, path_get_file_name(path), &m);
810 log_error_unit(u->id,
811 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
812 path, line, n, strerror(-r));
822 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
825 log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
826 path, line, m, strerror(-r));
830 } else if (startswith_no_case(t, "Default-Start:")) {
835 k = delete_chars(t+14, WHITESPACE "-");
838 if (!(d = strdup(k))) {
843 free(s->sysv_runlevels);
844 s->sysv_runlevels = d;
847 } else if (startswith_no_case(t, "Description:")) {
850 state = LSB_DESCRIPTION;
852 if ((j = strstrip(t+12)) && *j) {
853 if (!(d = strdup(j))) {
860 free(long_description);
861 long_description = d;
863 } else if (startswith_no_case(t, "Short-Description:")) {
868 if ((j = strstrip(t+18)) && *j) {
869 if (!(d = strdup(j))) {
876 free(short_description);
877 short_description = d;
879 } else if (state == LSB_DESCRIPTION) {
881 if (startswith(l, "#\t") || startswith(l, "# ")) {
884 if ((j = strstrip(t)) && *j) {
887 if (long_description)
888 d = strjoin(long_description, " ", t, NULL);
897 free(long_description);
898 long_description = d;
907 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
910 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
911 /* If there a runlevels configured for this service
912 * but none of the standard ones, then we assume this
913 * is some special kind of service (which might be
914 * needed for early boot) and don't create any links
917 UNIT(s)->default_dependencies = false;
919 /* Don't timeout special services during boot (like fsck) */
920 s->timeout_start_usec = 0;
921 s->timeout_stop_usec = 0;
923 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
924 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
927 /* Special setting for all SysV services */
928 s->type = SERVICE_FORKING;
929 s->remain_after_exit = !s->pid_file;
930 s->guess_main_pid = false;
931 s->restart = SERVICE_RESTART_NO;
932 s->exec_context.ignore_sigpipe = false;
933 s->kill_context.kill_mode = KILL_PROCESS;
935 /* We use the long description only if
936 * no short description is set. */
938 if (short_description)
939 description = short_description;
940 else if (chkconfig_description)
941 description = chkconfig_description;
942 else if (long_description)
943 description = long_description;
950 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
958 /* The priority that has been set in /etc/rcN.d/ hierarchies
959 * takes precedence over what is stored as default in the LSB
961 if (s->sysv_start_priority_from_rcnd >= 0)
962 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
964 u->load_state = UNIT_LOADED;
972 free(short_description);
973 free(long_description);
974 free(chkconfig_description);
979 static int service_load_sysv_name(Service *s, const char *name) {
985 /* For SysV services we strip the rc.* and *.sh
986 * prefixes/suffixes. */
987 if (startswith(name, "rc.") ||
988 endswith(name, ".sh.service"))
991 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
995 path = strjoin(*p, "/", name, NULL);
999 assert(endswith(path, ".service"));
1000 path[strlen(path)-8] = 0;
1002 r = service_load_sysv_path(s, path);
1004 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1005 /* Try *.sh source'able init scripts */
1006 strcat(path, ".sh");
1007 r = service_load_sysv_path(s, path);
1011 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1012 /* Try rc.* init scripts */
1014 path = strjoin(*p, "/rc.", name, NULL);
1018 /* Drop .service suffix */
1019 path[strlen(path)-8] = 0;
1020 r = service_load_sysv_path(s, path);
1027 if (UNIT(s)->load_state != UNIT_STUB)
1034 static int service_load_sysv(Service *s) {
1041 /* Load service data from SysV init scripts, preferably with
1042 * LSB headers ... */
1044 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1047 if ((t = UNIT(s)->id))
1048 if ((r = service_load_sysv_name(s, t)) < 0)
1051 if (UNIT(s)->load_state == UNIT_STUB)
1052 SET_FOREACH(t, UNIT(s)->names, i) {
1053 if (t == UNIT(s)->id)
1056 if ((r = service_load_sysv_name(s, t)) < 0)
1059 if (UNIT(s)->load_state != UNIT_STUB)
1067 static int fsck_fix_order(Service *s) {
1073 if (s->fsck_passno <= 0)
1076 /* For each pair of services where both have an fsck priority
1077 * we order things based on it. */
1079 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1088 if (UNIT(t)->load_state != UNIT_LOADED)
1091 if (t->fsck_passno <= 0)
1094 if (t->fsck_passno < s->fsck_passno)
1096 else if (t->fsck_passno > s->fsck_passno)
1101 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1108 static int service_verify(Service *s) {
1111 if (UNIT(s)->load_state != UNIT_LOADED)
1114 if (!s->exec_command[SERVICE_EXEC_START]) {
1115 log_error_unit(UNIT(s)->id,
1116 "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1120 if (s->type != SERVICE_ONESHOT &&
1121 s->exec_command[SERVICE_EXEC_START]->command_next) {
1122 log_error_unit(UNIT(s)->id,
1123 "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1127 if (s->type == SERVICE_DBUS && !s->bus_name) {
1128 log_error_unit(UNIT(s)->id,
1129 "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1133 if (s->bus_name && s->type != SERVICE_DBUS)
1134 log_warning_unit(UNIT(s)->id,
1135 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1137 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1138 log_error_unit(UNIT(s)->id,
1139 "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1146 static int service_add_default_dependencies(Service *s) {
1151 /* Add a number of automatic dependencies useful for the
1152 * majority of services. */
1154 /* First, pull in base system */
1155 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
1157 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1160 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
1162 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1166 /* Second, activate normal shutdown */
1167 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1170 static void service_fix_output(Service *s) {
1173 /* If nothing has been explicitly configured, patch default
1174 * output in. If input is socket/tty we avoid this however,
1175 * since in that case we want output to default to the same
1176 * place as we read input from. */
1178 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1179 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1180 s->exec_context.std_input == EXEC_INPUT_NULL)
1181 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1183 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1184 s->exec_context.std_input == EXEC_INPUT_NULL)
1185 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1188 static int service_load(Unit *u) {
1190 Service *s = SERVICE(u);
1194 /* Load a .service file */
1195 if ((r = unit_load_fragment(u)) < 0)
1198 #ifdef HAVE_SYSV_COMPAT
1199 /* Load a classic init script as a fallback, if we couldn't find anything */
1200 if (u->load_state == UNIT_STUB)
1201 if ((r = service_load_sysv(s)) < 0)
1205 /* Still nothing found? Then let's give up */
1206 if (u->load_state == UNIT_STUB)
1209 /* We were able to load something, then let's add in the
1210 * dropin directories. */
1211 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1214 /* This is a new unit? Then let's add in some extras */
1215 if (u->load_state == UNIT_LOADED) {
1216 if (s->type == _SERVICE_TYPE_INVALID)
1217 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1219 /* Oneshot services have disabled start timeout by default */
1220 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1221 s->timeout_start_usec = 0;
1223 service_fix_output(s);
1225 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1228 if ((r = unit_add_default_cgroups(u)) < 0)
1231 #ifdef HAVE_SYSV_COMPAT
1232 if ((r = sysv_fix_order(s)) < 0)
1236 if ((r = fsck_fix_order(s)) < 0)
1240 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1243 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1244 s->notify_access = NOTIFY_MAIN;
1246 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1247 s->notify_access = NOTIFY_MAIN;
1249 if (s->type == SERVICE_DBUS || s->bus_name)
1250 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1253 if (UNIT(s)->default_dependencies)
1254 if ((r = service_add_default_dependencies(s)) < 0)
1257 r = unit_exec_context_defaults(u, &s->exec_context);
1262 return service_verify(s);
1265 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1267 ServiceExecCommand c;
1268 Service *s = SERVICE(u);
1269 const char *prefix2;
1274 p2 = strappend(prefix, "\t");
1275 prefix2 = p2 ? p2 : prefix;
1278 "%sService State: %s\n"
1280 "%sReload Result: %s\n"
1281 "%sPermissionsStartOnly: %s\n"
1282 "%sRootDirectoryStartOnly: %s\n"
1283 "%sRemainAfterExit: %s\n"
1284 "%sGuessMainPID: %s\n"
1287 "%sNotifyAccess: %s\n",
1288 prefix, service_state_to_string(s->state),
1289 prefix, service_result_to_string(s->result),
1290 prefix, service_result_to_string(s->reload_result),
1291 prefix, yes_no(s->permissions_start_only),
1292 prefix, yes_no(s->root_directory_start_only),
1293 prefix, yes_no(s->remain_after_exit),
1294 prefix, yes_no(s->guess_main_pid),
1295 prefix, service_type_to_string(s->type),
1296 prefix, service_restart_to_string(s->restart),
1297 prefix, notify_access_to_string(s->notify_access));
1299 if (s->control_pid > 0)
1301 "%sControl PID: %lu\n",
1302 prefix, (unsigned long) s->control_pid);
1304 if (s->main_pid > 0)
1307 "%sMain PID Known: %s\n"
1308 "%sMain PID Alien: %s\n",
1309 prefix, (unsigned long) s->main_pid,
1310 prefix, yes_no(s->main_pid_known),
1311 prefix, yes_no(s->main_pid_alien));
1316 prefix, s->pid_file);
1321 "%sBus Name Good: %s\n",
1322 prefix, s->bus_name,
1323 prefix, yes_no(s->bus_name_good));
1325 kill_context_dump(&s->kill_context, f, prefix);
1326 exec_context_dump(&s->exec_context, f, prefix);
1328 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1330 if (!s->exec_command[c])
1333 fprintf(f, "%s-> %s:\n",
1334 prefix, service_exec_command_to_string(c));
1336 exec_command_dump_list(s->exec_command[c], f, prefix2);
1339 #ifdef HAVE_SYSV_COMPAT
1342 "%sSysV Init Script has LSB Header: %s\n"
1343 "%sSysVEnabled: %s\n",
1344 prefix, yes_no(s->sysv_has_lsb),
1345 prefix, yes_no(s->sysv_enabled));
1347 if (s->sysv_start_priority >= 0)
1349 "%sSysVStartPriority: %i\n",
1350 prefix, s->sysv_start_priority);
1352 if (s->sysv_runlevels)
1353 fprintf(f, "%sSysVRunLevels: %s\n",
1354 prefix, s->sysv_runlevels);
1357 if (s->fsck_passno > 0)
1359 "%sFsckPassNo: %i\n",
1360 prefix, s->fsck_passno);
1363 fprintf(f, "%sStatus Text: %s\n",
1364 prefix, s->status_text);
1369 static int service_load_pid_file(Service *s, bool may_warn) {
1379 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1381 log_info_unit(UNIT(s)->id,
1382 "PID file %s not readable (yet?) after %s.",
1383 s->pid_file, service_state_to_string(s->state));
1387 r = parse_pid(k, &pid);
1393 if (kill(pid, 0) < 0 && errno != EPERM) {
1395 log_info_unit(UNIT(s)->id,
1396 "PID %lu read from file %s does not exist.",
1397 (unsigned long) pid, s->pid_file);
1401 if (s->main_pid_known) {
1402 if (pid == s->main_pid)
1405 log_debug_unit(UNIT(s)->id,
1406 "Main PID changing: %lu -> %lu",
1407 (unsigned long) s->main_pid, (unsigned long) pid);
1408 service_unwatch_main_pid(s);
1409 s->main_pid_known = false;
1411 log_debug_unit(UNIT(s)->id,
1412 "Main PID loaded: %lu", (unsigned long) pid);
1414 if ((r = service_set_main_pid(s, pid)) < 0)
1417 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1418 /* FIXME: we need to do something here */
1424 static int service_search_main_pid(Service *s) {
1430 /* If we know it anyway, don't ever fallback to unreliable
1432 if (s->main_pid_known)
1435 if (!s->guess_main_pid)
1438 assert(s->main_pid <= 0);
1440 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1443 log_debug_unit(UNIT(s)->id,
1444 "Main PID guessed: %lu", (unsigned long) pid);
1445 if ((r = service_set_main_pid(s, pid)) < 0)
1448 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1449 /* FIXME: we need to do something here */
1455 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1461 /* Notifies all our sockets when we die */
1463 if (s->socket_fd >= 0)
1466 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1467 if (u->type == UNIT_SOCKET)
1468 socket_notify_service_dead(SOCKET(u), failed_permanent);
1473 static void service_set_state(Service *s, ServiceState state) {
1474 ServiceState old_state;
1475 const UnitActiveState *table;
1478 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1480 old_state = s->state;
1483 service_unwatch_pid_file(s);
1485 if (state != SERVICE_START_PRE &&
1486 state != SERVICE_START &&
1487 state != SERVICE_START_POST &&
1488 state != SERVICE_RELOAD &&
1489 state != SERVICE_STOP &&
1490 state != SERVICE_STOP_SIGTERM &&
1491 state != SERVICE_STOP_SIGKILL &&
1492 state != SERVICE_STOP_POST &&
1493 state != SERVICE_FINAL_SIGTERM &&
1494 state != SERVICE_FINAL_SIGKILL &&
1495 state != SERVICE_AUTO_RESTART)
1496 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1498 if (state != SERVICE_START &&
1499 state != SERVICE_START_POST &&
1500 state != SERVICE_RUNNING &&
1501 state != SERVICE_RELOAD &&
1502 state != SERVICE_STOP &&
1503 state != SERVICE_STOP_SIGTERM &&
1504 state != SERVICE_STOP_SIGKILL) {
1505 service_unwatch_main_pid(s);
1506 s->main_command = NULL;
1509 if (state != SERVICE_START_PRE &&
1510 state != SERVICE_START &&
1511 state != SERVICE_START_POST &&
1512 state != SERVICE_RELOAD &&
1513 state != SERVICE_STOP &&
1514 state != SERVICE_STOP_SIGTERM &&
1515 state != SERVICE_STOP_SIGKILL &&
1516 state != SERVICE_STOP_POST &&
1517 state != SERVICE_FINAL_SIGTERM &&
1518 state != SERVICE_FINAL_SIGKILL) {
1519 service_unwatch_control_pid(s);
1520 s->control_command = NULL;
1521 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1524 if (state == SERVICE_DEAD ||
1525 state == SERVICE_STOP ||
1526 state == SERVICE_STOP_SIGTERM ||
1527 state == SERVICE_STOP_SIGKILL ||
1528 state == SERVICE_STOP_POST ||
1529 state == SERVICE_FINAL_SIGTERM ||
1530 state == SERVICE_FINAL_SIGKILL ||
1531 state == SERVICE_FAILED ||
1532 state == SERVICE_AUTO_RESTART)
1533 service_notify_sockets_dead(s, false);
1535 if (state != SERVICE_START_PRE &&
1536 state != SERVICE_START &&
1537 state != SERVICE_START_POST &&
1538 state != SERVICE_RUNNING &&
1539 state != SERVICE_RELOAD &&
1540 state != SERVICE_STOP &&
1541 state != SERVICE_STOP_SIGTERM &&
1542 state != SERVICE_STOP_SIGKILL &&
1543 state != SERVICE_STOP_POST &&
1544 state != SERVICE_FINAL_SIGTERM &&
1545 state != SERVICE_FINAL_SIGKILL &&
1546 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1547 service_close_socket_fd(s);
1548 service_connection_unref(s);
1551 if (state == SERVICE_STOP)
1552 service_stop_watchdog(s);
1554 /* For the inactive states unit_notify() will trim the cgroup,
1555 * but for exit we have to do that ourselves... */
1556 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1557 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1559 if (old_state != state)
1560 log_debug_unit(UNIT(s)->id,
1561 "%s changed %s -> %s", UNIT(s)->id,
1562 service_state_to_string(old_state),
1563 service_state_to_string(state));
1565 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1566 s->reload_result = SERVICE_SUCCESS;
1569 static int service_coldplug(Unit *u) {
1570 Service *s = SERVICE(u);
1574 assert(s->state == SERVICE_DEAD);
1576 if (s->deserialized_state != s->state) {
1578 if (s->deserialized_state == SERVICE_START_PRE ||
1579 s->deserialized_state == SERVICE_START ||
1580 s->deserialized_state == SERVICE_START_POST ||
1581 s->deserialized_state == SERVICE_RELOAD ||
1582 s->deserialized_state == SERVICE_STOP ||
1583 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1584 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1585 s->deserialized_state == SERVICE_STOP_POST ||
1586 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1587 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1588 s->deserialized_state == SERVICE_AUTO_RESTART) {
1589 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1592 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1594 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1600 if ((s->deserialized_state == SERVICE_START &&
1601 (s->type == SERVICE_FORKING ||
1602 s->type == SERVICE_DBUS ||
1603 s->type == SERVICE_ONESHOT ||
1604 s->type == SERVICE_NOTIFY)) ||
1605 s->deserialized_state == SERVICE_START_POST ||
1606 s->deserialized_state == SERVICE_RUNNING ||
1607 s->deserialized_state == SERVICE_RELOAD ||
1608 s->deserialized_state == SERVICE_STOP ||
1609 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1610 s->deserialized_state == SERVICE_STOP_SIGKILL)
1611 if (s->main_pid > 0)
1612 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1615 if (s->deserialized_state == SERVICE_START_PRE ||
1616 s->deserialized_state == SERVICE_START ||
1617 s->deserialized_state == SERVICE_START_POST ||
1618 s->deserialized_state == SERVICE_RELOAD ||
1619 s->deserialized_state == SERVICE_STOP ||
1620 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1621 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1622 s->deserialized_state == SERVICE_STOP_POST ||
1623 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1624 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1625 if (s->control_pid > 0)
1626 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1629 if (s->deserialized_state == SERVICE_START_POST ||
1630 s->deserialized_state == SERVICE_RUNNING)
1631 service_handle_watchdog(s);
1633 service_set_state(s, s->deserialized_state);
1638 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1642 unsigned rn_fds = 0;
1649 if (s->socket_fd >= 0)
1652 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1657 if (u->type != UNIT_SOCKET)
1662 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1674 if (!(t = new(int, rn_fds+cn_fds))) {
1680 memcpy(t, rfds, rn_fds * sizeof(int));
1681 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1686 rn_fds = rn_fds+cn_fds;
1701 static int service_spawn(
1706 bool apply_permissions,
1708 bool apply_tty_stdin,
1709 bool set_notify_socket,
1715 int *fds = NULL, *fdsbuf = NULL;
1716 unsigned n_fds = 0, n_env = 0;
1717 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1724 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1725 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1726 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1728 if (s->socket_fd >= 0) {
1729 fds = &s->socket_fd;
1732 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1739 if (timeout && s->timeout_start_usec) {
1740 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_start_usec, &s->timer_watch);
1744 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1746 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1751 our_env = new0(char*, 5);
1757 if (set_notify_socket)
1758 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1763 if (s->main_pid > 0)
1764 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1769 if (s->watchdog_usec > 0)
1770 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1775 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1776 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1781 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1795 UNIT(s)->manager->confirm_spawn,
1796 UNIT(s)->cgroup_bondings,
1797 UNIT(s)->cgroup_attributes,
1798 is_control ? "control" : NULL,
1800 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1806 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1807 /* FIXME: we need to do something here */
1813 strv_free(final_env);
1823 strv_free(final_env);
1826 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1831 static int main_pid_good(Service *s) {
1834 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1837 /* If we know the pid file, then lets just check if it is
1839 if (s->main_pid_known) {
1841 /* If it's an alien child let's check if it is still
1843 if (s->main_pid_alien)
1844 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1846 /* .. otherwise assume we'll get a SIGCHLD for it,
1847 * which we really should wait for to collect exit
1848 * status and code */
1849 return s->main_pid > 0;
1852 /* We don't know the pid */
1856 static int control_pid_good(Service *s) {
1859 return s->control_pid > 0;
1862 static int cgroup_good(Service *s) {
1867 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1873 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1877 if (f != SERVICE_SUCCESS)
1880 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1882 if (allow_restart &&
1883 !s->forbid_restart &&
1884 (s->restart == SERVICE_RESTART_ALWAYS ||
1885 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1886 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1887 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1888 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1889 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1890 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1891 (s->result != SERVICE_FAILURE_SIGNAL ||
1892 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1895 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1899 service_set_state(s, SERVICE_AUTO_RESTART);
1902 s->forbid_restart = false;
1907 log_warning_unit(UNIT(s)->id,
1908 "%s failed to run install restart timer: %s",
1909 UNIT(s)->id, strerror(-r));
1910 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1913 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1915 static void service_enter_stop_post(Service *s, ServiceResult f) {
1919 if (f != SERVICE_SUCCESS)
1922 service_unwatch_control_pid(s);
1924 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1925 s->control_command_id = SERVICE_EXEC_STOP_POST;
1927 r = service_spawn(s,
1931 !s->permissions_start_only,
1932 !s->root_directory_start_only,
1941 service_set_state(s, SERVICE_STOP_POST);
1943 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1948 log_warning_unit(UNIT(s)->id,
1949 "%s failed to run 'stop-post' task: %s",
1950 UNIT(s)->id, strerror(-r));
1951 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1954 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1956 Set *pid_set = NULL;
1957 bool wait_for_exit = false;
1961 if (f != SERVICE_SUCCESS)
1964 if (s->kill_context.kill_mode != KILL_NONE) {
1965 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
1967 if (s->main_pid > 0) {
1968 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1969 log_warning_unit(UNIT(s)->id,
1970 "Failed to kill main process %li: %m", (long) s->main_pid);
1972 wait_for_exit = !s->main_pid_alien;
1975 if (s->control_pid > 0) {
1976 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1977 log_warning_unit(UNIT(s)->id,
1978 "Failed to kill control process %li: %m", (long) s->control_pid);
1980 wait_for_exit = true;
1983 if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
1985 pid_set = set_new(trivial_hash_func, trivial_compare_func);
1991 /* Exclude the main/control pids from being killed via the cgroup */
1992 if (s->main_pid > 0)
1993 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1996 if (s->control_pid > 0)
1997 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
2000 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
2002 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2003 log_warning_unit(UNIT(s)->id,
2004 "Failed to kill control group: %s", strerror(-r));
2006 wait_for_exit = true;
2013 if (wait_for_exit) {
2014 if (s->timeout_stop_usec > 0) {
2015 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_stop_usec, &s->timer_watch);
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_unit(UNIT(s)->id,
2030 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2032 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2033 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2035 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2041 static void service_enter_stop(Service *s, ServiceResult f) {
2046 if (f != SERVICE_SUCCESS)
2049 service_unwatch_control_pid(s);
2051 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2052 s->control_command_id = SERVICE_EXEC_STOP;
2054 r = service_spawn(s,
2058 !s->permissions_start_only,
2059 !s->root_directory_start_only,
2067 service_set_state(s, SERVICE_STOP);
2069 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2074 log_warning_unit(UNIT(s)->id,
2075 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2076 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2079 static void service_enter_running(Service *s, ServiceResult f) {
2080 int main_pid_ok, cgroup_ok;
2083 if (f != SERVICE_SUCCESS)
2086 main_pid_ok = main_pid_good(s);
2087 cgroup_ok = cgroup_good(s);
2089 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2090 (s->bus_name_good || s->type != SERVICE_DBUS))
2091 service_set_state(s, SERVICE_RUNNING);
2092 else if (s->remain_after_exit)
2093 service_set_state(s, SERVICE_EXITED);
2095 service_enter_stop(s, SERVICE_SUCCESS);
2098 static void service_enter_start_post(Service *s) {
2102 service_unwatch_control_pid(s);
2104 if (s->watchdog_usec > 0)
2105 service_reset_watchdog(s);
2107 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2108 s->control_command_id = SERVICE_EXEC_START_POST;
2110 r = service_spawn(s,
2114 !s->permissions_start_only,
2115 !s->root_directory_start_only,
2123 service_set_state(s, SERVICE_START_POST);
2125 service_enter_running(s, SERVICE_SUCCESS);
2130 log_warning_unit(UNIT(s)->id,
2131 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2132 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2135 static void service_enter_start(Service *s) {
2142 assert(s->exec_command[SERVICE_EXEC_START]);
2143 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2145 if (s->type == SERVICE_FORKING)
2146 service_unwatch_control_pid(s);
2148 service_unwatch_main_pid(s);
2150 /* We want to ensure that nobody leaks processes from
2151 * START_PRE here, so let's go on a killing spree, People
2152 * should not spawn long running processes from START_PRE. */
2153 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2155 if (s->type == SERVICE_FORKING) {
2156 s->control_command_id = SERVICE_EXEC_START;
2157 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2159 s->main_command = NULL;
2161 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2162 s->control_command = NULL;
2164 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2167 r = service_spawn(s,
2169 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2174 s->notify_access != NOTIFY_NONE,
2180 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2181 /* For simple services we immediately start
2182 * the START_POST binaries. */
2184 service_set_main_pid(s, pid);
2185 service_enter_start_post(s);
2187 } else if (s->type == SERVICE_FORKING) {
2189 /* For forking services we wait until the start
2190 * process exited. */
2192 s->control_pid = pid;
2193 service_set_state(s, SERVICE_START);
2195 } else if (s->type == SERVICE_ONESHOT ||
2196 s->type == SERVICE_DBUS ||
2197 s->type == SERVICE_NOTIFY) {
2199 /* For oneshot services we wait until the start
2200 * process exited, too, but it is our main process. */
2202 /* For D-Bus services we know the main pid right away,
2203 * but wait for the bus name to appear on the
2204 * bus. Notify services are similar. */
2206 service_set_main_pid(s, pid);
2207 service_set_state(s, SERVICE_START);
2209 assert_not_reached("Unknown service type");
2214 log_warning_unit(UNIT(s)->id,
2215 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2216 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2219 static void service_enter_start_pre(Service *s) {
2224 service_unwatch_control_pid(s);
2226 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2228 /* Before we start anything, let's clear up what might
2229 * be left from previous runs. */
2230 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2232 s->control_command_id = SERVICE_EXEC_START_PRE;
2234 r = service_spawn(s,
2238 !s->permissions_start_only,
2239 !s->root_directory_start_only,
2247 service_set_state(s, SERVICE_START_PRE);
2249 service_enter_start(s);
2254 log_warning_unit(UNIT(s)->id,
2255 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2256 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2259 static void service_enter_restart(Service *s) {
2264 dbus_error_init(&error);
2266 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2267 /* Don't restart things if we are going down anyway */
2268 log_info_unit(UNIT(s)->id,
2269 "Stop job pending for unit, delaying automatic restart.");
2271 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2278 /* Any units that are bound to this service must also be
2279 * restarted. We use JOB_RESTART (instead of the more obvious
2280 * JOB_START) here so that those dependency jobs will be added
2282 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2286 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2287 * it will be canceled as part of the service_stop() call that
2288 * is executed as part of JOB_RESTART. */
2290 log_debug_unit(UNIT(s)->id,
2291 "%s scheduled restart job.", UNIT(s)->id);
2295 log_warning_unit(UNIT(s)->id,
2296 "%s failed to schedule restart job: %s",
2297 UNIT(s)->id, bus_error(&error, -r));
2298 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2300 dbus_error_free(&error);
2303 static void service_enter_reload(Service *s) {
2308 service_unwatch_control_pid(s);
2310 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2311 s->control_command_id = SERVICE_EXEC_RELOAD;
2313 r = service_spawn(s,
2317 !s->permissions_start_only,
2318 !s->root_directory_start_only,
2326 service_set_state(s, SERVICE_RELOAD);
2328 service_enter_running(s, SERVICE_SUCCESS);
2333 log_warning_unit(UNIT(s)->id,
2334 "%s failed to run 'reload' task: %s",
2335 UNIT(s)->id, strerror(-r));
2336 s->reload_result = SERVICE_FAILURE_RESOURCES;
2337 service_enter_running(s, SERVICE_SUCCESS);
2340 static void service_run_next_control(Service *s) {
2344 assert(s->control_command);
2345 assert(s->control_command->command_next);
2347 assert(s->control_command_id != SERVICE_EXEC_START);
2349 s->control_command = s->control_command->command_next;
2350 service_unwatch_control_pid(s);
2352 r = service_spawn(s,
2356 !s->permissions_start_only,
2357 !s->root_directory_start_only,
2358 s->control_command_id == SERVICE_EXEC_START_PRE ||
2359 s->control_command_id == SERVICE_EXEC_STOP_POST,
2369 log_warning_unit(UNIT(s)->id,
2370 "%s failed to run next control task: %s",
2371 UNIT(s)->id, strerror(-r));
2373 if (s->state == SERVICE_START_PRE)
2374 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2375 else if (s->state == SERVICE_STOP)
2376 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2377 else if (s->state == SERVICE_STOP_POST)
2378 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2379 else if (s->state == SERVICE_RELOAD) {
2380 s->reload_result = SERVICE_FAILURE_RESOURCES;
2381 service_enter_running(s, SERVICE_SUCCESS);
2383 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2386 static void service_run_next_main(Service *s) {
2391 assert(s->main_command);
2392 assert(s->main_command->command_next);
2393 assert(s->type == SERVICE_ONESHOT);
2395 s->main_command = s->main_command->command_next;
2396 service_unwatch_main_pid(s);
2398 r = service_spawn(s,
2405 s->notify_access != NOTIFY_NONE,
2411 service_set_main_pid(s, pid);
2416 log_warning_unit(UNIT(s)->id,
2417 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2418 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2421 static int service_start_limit_test(Service *s) {
2424 if (ratelimit_test(&s->start_limit))
2427 switch (s->start_limit_action) {
2429 case SERVICE_START_LIMIT_NONE:
2430 log_warning_unit(UNIT(s)->id,
2431 "%s start request repeated too quickly, refusing to start.",
2435 case SERVICE_START_LIMIT_REBOOT: {
2439 dbus_error_init(&error);
2441 log_warning_unit(UNIT(s)->id,
2442 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2444 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2446 log_error_unit(UNIT(s)->id,
2447 "Failed to reboot: %s.", bus_error(&error, r));
2448 dbus_error_free(&error);
2454 case SERVICE_START_LIMIT_REBOOT_FORCE:
2455 log_warning_unit(UNIT(s)->id,
2456 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2457 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2460 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2461 log_warning_unit(UNIT(s)->id,
2462 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2464 reboot(RB_AUTOBOOT);
2468 log_error_unit(UNIT(s)->id,
2469 "start limit action=%i", s->start_limit_action);
2470 assert_not_reached("Unknown StartLimitAction.");
2476 static int service_start(Unit *u) {
2477 Service *s = SERVICE(u);
2482 /* We cannot fulfill this request right now, try again later
2484 if (s->state == SERVICE_STOP ||
2485 s->state == SERVICE_STOP_SIGTERM ||
2486 s->state == SERVICE_STOP_SIGKILL ||
2487 s->state == SERVICE_STOP_POST ||
2488 s->state == SERVICE_FINAL_SIGTERM ||
2489 s->state == SERVICE_FINAL_SIGKILL)
2492 /* Already on it! */
2493 if (s->state == SERVICE_START_PRE ||
2494 s->state == SERVICE_START ||
2495 s->state == SERVICE_START_POST)
2498 /* A service that will be restarted must be stopped first to
2499 * trigger BindsTo and/or OnFailure dependencies. If a user
2500 * does not want to wait for the holdoff time to elapse, the
2501 * service should be manually restarted, not started. We
2502 * simply return EAGAIN here, so that any start jobs stay
2503 * queued, and assume that the auto restart timer will
2504 * eventually trigger the restart. */
2505 if (s->state == SERVICE_AUTO_RESTART)
2508 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2510 /* Make sure we don't enter a busy loop of some kind. */
2511 r = service_start_limit_test(s);
2513 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2517 s->result = SERVICE_SUCCESS;
2518 s->reload_result = SERVICE_SUCCESS;
2519 s->main_pid_known = false;
2520 s->main_pid_alien = false;
2521 s->forbid_restart = false;
2523 service_enter_start_pre(s);
2527 static int service_stop(Unit *u) {
2528 Service *s = SERVICE(u);
2532 /* Don't create restart jobs from here. */
2533 s->forbid_restart = true;
2536 if (s->state == SERVICE_STOP ||
2537 s->state == SERVICE_STOP_SIGTERM ||
2538 s->state == SERVICE_STOP_SIGKILL ||
2539 s->state == SERVICE_STOP_POST ||
2540 s->state == SERVICE_FINAL_SIGTERM ||
2541 s->state == SERVICE_FINAL_SIGKILL)
2544 /* A restart will be scheduled or is in progress. */
2545 if (s->state == SERVICE_AUTO_RESTART) {
2546 service_set_state(s, SERVICE_DEAD);
2550 /* If there's already something running we go directly into
2552 if (s->state == SERVICE_START_PRE ||
2553 s->state == SERVICE_START ||
2554 s->state == SERVICE_START_POST ||
2555 s->state == SERVICE_RELOAD) {
2556 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2560 assert(s->state == SERVICE_RUNNING ||
2561 s->state == SERVICE_EXITED);
2563 service_enter_stop(s, SERVICE_SUCCESS);
2567 static int service_reload(Unit *u) {
2568 Service *s = SERVICE(u);
2572 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2574 service_enter_reload(s);
2578 static bool service_can_reload(Unit *u) {
2579 Service *s = SERVICE(u);
2583 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2586 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2587 Service *s = SERVICE(u);
2593 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2594 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2595 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2597 if (s->control_pid > 0)
2598 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2600 if (s->main_pid_known && s->main_pid > 0)
2601 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2603 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2606 unit_serialize_item(u, f, "status-text", s->status_text);
2608 /* FIXME: There's a minor uncleanliness here: if there are
2609 * multiple commands attached here, we will start from the
2610 * first one again */
2611 if (s->control_command_id >= 0)
2612 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2614 if (s->socket_fd >= 0) {
2617 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2620 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2623 if (s->main_exec_status.pid > 0) {
2624 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2625 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2626 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2628 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2629 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2630 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2633 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2634 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2639 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2640 Service *s = SERVICE(u);
2647 if (streq(key, "state")) {
2650 if ((state = service_state_from_string(value)) < 0)
2651 log_debug_unit(u->id, "Failed to parse state value %s", value);
2653 s->deserialized_state = state;
2654 } else if (streq(key, "result")) {
2657 f = service_result_from_string(value);
2659 log_debug_unit(u->id, "Failed to parse result value %s", value);
2660 else if (f != SERVICE_SUCCESS)
2663 } else if (streq(key, "reload-result")) {
2666 f = service_result_from_string(value);
2668 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2669 else if (f != SERVICE_SUCCESS)
2670 s->reload_result = f;
2672 } else if (streq(key, "control-pid")) {
2675 if (parse_pid(value, &pid) < 0)
2676 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2678 s->control_pid = pid;
2679 } else if (streq(key, "main-pid")) {
2682 if (parse_pid(value, &pid) < 0)
2683 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2685 service_set_main_pid(s, (pid_t) pid);
2686 } else if (streq(key, "main-pid-known")) {
2689 if ((b = parse_boolean(value)) < 0)
2690 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2692 s->main_pid_known = b;
2693 } else if (streq(key, "status-text")) {
2696 if ((t = strdup(value))) {
2697 free(s->status_text);
2701 } else if (streq(key, "control-command")) {
2702 ServiceExecCommand id;
2704 if ((id = service_exec_command_from_string(value)) < 0)
2705 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2707 s->control_command_id = id;
2708 s->control_command = s->exec_command[id];
2710 } else if (streq(key, "socket-fd")) {
2713 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2714 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2717 if (s->socket_fd >= 0)
2718 close_nointr_nofail(s->socket_fd);
2719 s->socket_fd = fdset_remove(fds, fd);
2721 } else if (streq(key, "main-exec-status-pid")) {
2724 if (parse_pid(value, &pid) < 0)
2725 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2727 s->main_exec_status.pid = pid;
2728 } else if (streq(key, "main-exec-status-code")) {
2731 if (safe_atoi(value, &i) < 0)
2732 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2734 s->main_exec_status.code = i;
2735 } else if (streq(key, "main-exec-status-status")) {
2738 if (safe_atoi(value, &i) < 0)
2739 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2741 s->main_exec_status.status = i;
2742 } else if (streq(key, "main-exec-status-start"))
2743 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2744 else if (streq(key, "main-exec-status-exit"))
2745 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2746 else if (streq(key, "watchdog-timestamp"))
2747 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2749 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2754 static UnitActiveState service_active_state(Unit *u) {
2755 const UnitActiveState *table;
2759 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2761 return table[SERVICE(u)->state];
2764 static const char *service_sub_state_to_string(Unit *u) {
2767 return service_state_to_string(SERVICE(u)->state);
2770 static bool service_check_gc(Unit *u) {
2771 Service *s = SERVICE(u);
2775 /* Never clean up services that still have a process around,
2776 * even if the service is formally dead. */
2777 if (cgroup_good(s) > 0 ||
2778 main_pid_good(s) > 0 ||
2779 control_pid_good(s) > 0)
2782 #ifdef HAVE_SYSV_COMPAT
2790 static bool service_check_snapshot(Unit *u) {
2791 Service *s = SERVICE(u);
2795 return !s->got_socket_fd;
2798 static int service_retry_pid_file(Service *s) {
2801 assert(s->pid_file);
2802 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2804 r = service_load_pid_file(s, false);
2808 service_unwatch_pid_file(s);
2810 service_enter_running(s, SERVICE_SUCCESS);
2814 static int service_watch_pid_file(Service *s) {
2817 log_debug_unit(UNIT(s)->id,
2818 "Setting watch for %s's PID file %s",
2819 UNIT(s)->id, s->pid_file_pathspec->path);
2820 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2824 /* the pidfile might have appeared just before we set the watch */
2825 service_retry_pid_file(s);
2829 log_error_unit(UNIT(s)->id,
2830 "Failed to set a watch for %s's PID file %s: %s",
2831 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2832 service_unwatch_pid_file(s);
2836 static int service_demand_pid_file(Service *s) {
2839 assert(s->pid_file);
2840 assert(!s->pid_file_pathspec);
2842 ps = new0(PathSpec, 1);
2846 ps->path = strdup(s->pid_file);
2852 path_kill_slashes(ps->path);
2854 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2855 * keep their PID file open all the time. */
2856 ps->type = PATH_MODIFIED;
2857 ps->inotify_fd = -1;
2859 s->pid_file_pathspec = ps;
2861 return service_watch_pid_file(s);
2864 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2865 Service *s = SERVICE(u);
2869 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2870 assert(s->pid_file_pathspec);
2871 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2873 log_debug_unit(u->id, "inotify event for %s", u->id);
2875 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2878 if (service_retry_pid_file(s) == 0)
2881 if (service_watch_pid_file(s) < 0)
2886 service_unwatch_pid_file(s);
2887 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2890 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2891 Service *s = SERVICE(u);
2897 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2898 is_clean_exit_lsb(code, status, &s->success_status))
2899 f = SERVICE_SUCCESS;
2900 else if (code == CLD_EXITED)
2901 f = SERVICE_FAILURE_EXIT_CODE;
2902 else if (code == CLD_KILLED)
2903 f = SERVICE_FAILURE_SIGNAL;
2904 else if (code == CLD_DUMPED)
2905 f = SERVICE_FAILURE_CORE_DUMP;
2907 assert_not_reached("Unknown code");
2909 if (s->main_pid == pid) {
2910 /* Forking services may occasionally move to a new PID.
2911 * As long as they update the PID file before exiting the old
2912 * PID, they're fine. */
2913 if (service_load_pid_file(s, false) == 0)
2917 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2919 if (s->main_command) {
2920 /* If this is not a forking service than the
2921 * main process got started and hence we copy
2922 * the exit status so that it is recorded both
2923 * as main and as control process exit
2926 s->main_command->exec_status = s->main_exec_status;
2928 if (s->main_command->ignore)
2929 f = SERVICE_SUCCESS;
2930 } else if (s->exec_command[SERVICE_EXEC_START]) {
2932 /* If this is a forked process, then we should
2933 * ignore the return value if this was
2934 * configured for the starter process */
2936 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2937 f = SERVICE_SUCCESS;
2940 log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2941 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2942 u->id, sigchld_code_to_string(code), status,
2943 strna(code == CLD_EXITED
2944 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2945 : signal_to_string(status)),
2947 "EXIT_CODE=%s", sigchld_code_to_string(code),
2948 "EXIT_STATUS=%i", status,
2951 if (f != SERVICE_SUCCESS)
2954 if (s->main_command &&
2955 s->main_command->command_next &&
2956 f == SERVICE_SUCCESS) {
2958 /* There is another command to *
2959 * execute, so let's do that. */
2961 log_debug_unit(u->id,
2962 "%s running next main command for state %s",
2963 u->id, service_state_to_string(s->state));
2964 service_run_next_main(s);
2968 /* The service exited, so the service is officially
2970 s->main_command = NULL;
2974 case SERVICE_START_POST:
2975 case SERVICE_RELOAD:
2977 /* Need to wait until the operation is
2982 if (s->type == SERVICE_ONESHOT) {
2983 /* This was our main goal, so let's go on */
2984 if (f == SERVICE_SUCCESS)
2985 service_enter_start_post(s);
2987 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2993 case SERVICE_RUNNING:
2994 service_enter_running(s, f);
2997 case SERVICE_STOP_SIGTERM:
2998 case SERVICE_STOP_SIGKILL:
3000 if (!control_pid_good(s))
3001 service_enter_stop_post(s, f);
3003 /* If there is still a control process, wait for that first */
3007 assert_not_reached("Uh, main process died at wrong time.");
3011 } else if (s->control_pid == pid) {
3015 if (s->control_command) {
3016 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
3018 if (s->control_command->ignore)
3019 f = SERVICE_SUCCESS;
3022 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3023 "%s: control process exited, code=%s status=%i",
3024 u->id, sigchld_code_to_string(code), status);
3026 if (f != SERVICE_SUCCESS)
3029 /* Immediately get rid of the cgroup, so that the
3030 * kernel doesn't delay the cgroup empty messages for
3031 * the service cgroup any longer than necessary */
3032 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
3034 if (s->control_command &&
3035 s->control_command->command_next &&
3036 f == SERVICE_SUCCESS) {
3038 /* There is another command to *
3039 * execute, so let's do that. */
3041 log_debug_unit(u->id,
3042 "%s running next control command for state %s",
3043 u->id, service_state_to_string(s->state));
3044 service_run_next_control(s);
3047 /* No further commands for this step, so let's
3048 * figure out what to do next */
3050 s->control_command = NULL;
3051 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3053 log_debug_unit(u->id,
3054 "%s got final SIGCHLD for state %s",
3055 u->id, service_state_to_string(s->state));
3059 case SERVICE_START_PRE:
3060 if (f == SERVICE_SUCCESS)
3061 service_enter_start(s);
3063 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3067 if (s->type != SERVICE_FORKING)
3068 /* Maybe spurious event due to a reload that changed the type? */
3071 if (f != SERVICE_SUCCESS) {
3072 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3077 bool has_start_post;
3080 /* Let's try to load the pid file here if we can.
3081 * The PID file might actually be created by a START_POST
3082 * script. In that case don't worry if the loading fails. */
3084 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3085 r = service_load_pid_file(s, !has_start_post);
3086 if (!has_start_post && r < 0) {
3087 r = service_demand_pid_file(s);
3088 if (r < 0 || !cgroup_good(s))
3089 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3093 service_search_main_pid(s);
3095 service_enter_start_post(s);
3098 case SERVICE_START_POST:
3099 if (f != SERVICE_SUCCESS) {
3100 service_enter_stop(s, f);
3107 r = service_load_pid_file(s, true);
3109 r = service_demand_pid_file(s);
3110 if (r < 0 || !cgroup_good(s))
3111 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3115 service_search_main_pid(s);
3117 service_enter_running(s, SERVICE_SUCCESS);
3120 case SERVICE_RELOAD:
3121 if (f == SERVICE_SUCCESS) {
3122 service_load_pid_file(s, true);
3123 service_search_main_pid(s);
3126 s->reload_result = f;
3127 service_enter_running(s, SERVICE_SUCCESS);
3131 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3134 case SERVICE_STOP_SIGTERM:
3135 case SERVICE_STOP_SIGKILL:
3136 if (main_pid_good(s) <= 0)
3137 service_enter_stop_post(s, f);
3139 /* If there is still a service
3140 * process around, wait until
3141 * that one quit, too */
3144 case SERVICE_STOP_POST:
3145 case SERVICE_FINAL_SIGTERM:
3146 case SERVICE_FINAL_SIGKILL:
3147 service_enter_dead(s, f, true);
3151 assert_not_reached("Uh, control process died at wrong time.");
3156 /* Notify clients about changed exit status */
3157 unit_add_to_dbus_queue(u);
3160 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3161 Service *s = SERVICE(u);
3164 assert(elapsed == 1);
3166 if (w == &s->watchdog_watch) {
3167 service_handle_watchdog(s);
3171 assert(w == &s->timer_watch);
3175 case SERVICE_START_PRE:
3177 log_warning_unit(u->id,
3178 "%s operation timed out. Terminating.", u->id);
3179 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3182 case SERVICE_START_POST:
3183 log_warning_unit(u->id,
3184 "%s operation timed out. Stopping.", u->id);
3185 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3188 case SERVICE_RELOAD:
3189 log_warning_unit(u->id,
3190 "%s operation timed out. Stopping.", u->id);
3191 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3192 service_enter_running(s, SERVICE_SUCCESS);
3196 log_warning_unit(u->id,
3197 "%s stopping timed out. Terminating.", u->id);
3198 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3201 case SERVICE_STOP_SIGTERM:
3202 if (s->kill_context.send_sigkill) {
3203 log_warning_unit(u->id,
3204 "%s stopping timed out. Killing.", u->id);
3205 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3207 log_warning_unit(u->id,
3208 "%s stopping timed out. Skipping SIGKILL.", u->id);
3209 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3214 case SERVICE_STOP_SIGKILL:
3215 /* Uh, we sent a SIGKILL and it is still not gone?
3216 * Must be something we cannot kill, so let's just be
3217 * weirded out and continue */
3219 log_warning_unit(u->id,
3220 "%s still around after SIGKILL. Ignoring.", u->id);
3221 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3224 case SERVICE_STOP_POST:
3225 log_warning_unit(u->id,
3226 "%s stopping timed out (2). Terminating.", u->id);
3227 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3230 case SERVICE_FINAL_SIGTERM:
3231 if (s->kill_context.send_sigkill) {
3232 log_warning_unit(u->id,
3233 "%s stopping timed out (2). Killing.", u->id);
3234 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3236 log_warning_unit(u->id,
3237 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3239 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3244 case SERVICE_FINAL_SIGKILL:
3245 log_warning_unit(u->id,
3246 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3247 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3250 case SERVICE_AUTO_RESTART:
3251 log_info_unit(u->id,
3252 "%s holdoff time over, scheduling restart.", u->id);
3253 service_enter_restart(s);
3257 assert_not_reached("Timeout at wrong time.");
3261 static void service_cgroup_notify_event(Unit *u) {
3262 Service *s = SERVICE(u);
3266 log_debug_unit(u->id,
3267 "%s: cgroup is empty", u->id);
3271 /* Waiting for SIGCHLD is usually more interesting,
3272 * because it includes return codes/signals. Which is
3273 * why we ignore the cgroup events for most cases,
3274 * except when we don't know pid which to expect the
3278 case SERVICE_START_POST:
3279 /* If we were hoping for the daemon to write its PID file,
3280 * we can give up now. */
3281 if (s->pid_file_pathspec) {
3282 log_warning_unit(u->id,
3283 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3284 service_unwatch_pid_file(s);
3285 if (s->state == SERVICE_START)
3286 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3288 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3292 case SERVICE_RUNNING:
3293 /* service_enter_running() will figure out what to do */
3294 service_enter_running(s, SERVICE_SUCCESS);
3297 case SERVICE_STOP_SIGTERM:
3298 case SERVICE_STOP_SIGKILL:
3300 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3301 service_enter_stop_post(s, SERVICE_SUCCESS);
3305 case SERVICE_FINAL_SIGTERM:
3306 case SERVICE_FINAL_SIGKILL:
3307 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3308 service_enter_dead(s, SERVICE_SUCCESS, true);
3317 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3318 Service *s = SERVICE(u);
3323 if (s->notify_access == NOTIFY_NONE) {
3324 log_warning_unit(u->id,
3325 "%s: Got notification message from PID %lu, but reception is disabled.",
3326 u->id, (unsigned long) pid);
3330 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3331 log_warning_unit(u->id,
3332 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3333 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3337 log_debug_unit(u->id,
3338 "%s: Got message", u->id);
3340 /* Interpret MAINPID= */
3341 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3342 (s->state == SERVICE_START ||
3343 s->state == SERVICE_START_POST ||
3344 s->state == SERVICE_RUNNING ||
3345 s->state == SERVICE_RELOAD)) {
3347 if (parse_pid(e + 8, &pid) < 0)
3348 log_warning_unit(u->id,
3349 "Failed to parse notification message %s", e);
3351 log_debug_unit(u->id,
3352 "%s: got %s", u->id, e);
3353 service_set_main_pid(s, pid);
3357 /* Interpret READY= */
3358 if (s->type == SERVICE_NOTIFY &&
3359 s->state == SERVICE_START &&
3360 strv_find(tags, "READY=1")) {
3361 log_debug_unit(u->id,
3362 "%s: got READY=1", u->id);
3364 service_enter_start_post(s);
3367 /* Interpret STATUS= */
3368 e = strv_find_prefix(tags, "STATUS=");
3374 if (!utf8_is_valid(e+7)) {
3375 log_warning_unit(u->id,
3376 "Status message in notification is not UTF-8 clean.");
3382 log_error_unit(u->id,
3383 "Failed to allocate string.");
3387 log_debug_unit(u->id,
3388 "%s: got %s", u->id, e);
3390 free(s->status_text);
3393 free(s->status_text);
3394 s->status_text = NULL;
3398 if (strv_find(tags, "WATCHDOG=1")) {
3399 log_debug_unit(u->id,
3400 "%s: got WATCHDOG=1", u->id);
3401 service_reset_watchdog(s);
3404 /* Notify clients about changed status or main pid */
3405 unit_add_to_dbus_queue(u);
3408 #ifdef HAVE_SYSV_COMPAT
3410 static int service_enumerate(Manager *m) {
3414 char *path = NULL, *fpath = NULL, *name = NULL;
3415 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3422 if (m->running_as != SYSTEMD_SYSTEM)
3425 zero(runlevel_services);
3427 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3428 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3432 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3441 if (!(d = opendir(path))) {
3442 if (errno != ENOENT)
3443 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3448 while ((de = readdir(d))) {
3451 if (ignore_file(de->d_name))
3454 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3457 if (strlen(de->d_name) < 4)
3460 a = undecchar(de->d_name[1]);
3461 b = undecchar(de->d_name[2]);
3467 fpath = strjoin(path, "/", de->d_name, NULL);
3473 if (access(fpath, X_OK) < 0) {
3475 if (errno != ENOENT)
3476 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3482 if (!(name = sysv_translate_name(de->d_name + 3))) {
3487 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3489 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3493 if (de->d_name[0] == 'S') {
3495 if (rcnd_table[i].type == RUNLEVEL_UP) {
3496 SERVICE(service)->sysv_start_priority_from_rcnd =
3497 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3499 SERVICE(service)->sysv_enabled = true;
3502 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3505 if ((r = set_put(runlevel_services[i], service)) < 0)
3508 } else if (de->d_name[0] == 'K' &&
3509 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3511 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3514 if ((r = set_put(shutdown_services, service)) < 0)
3520 /* Now we loaded all stubs and are aware of the lowest
3521 start-up priority for all services, not let's actually load
3522 the services, this will also tell us which services are
3523 actually native now */
3524 manager_dispatch_load_queue(m);
3526 /* If this is a native service, rely on native ways to pull in
3527 * a service, don't pull it in via sysv rcN.d links. */
3528 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3529 SET_FOREACH(service, runlevel_services[i], j) {
3530 service = unit_follow_merge(service);
3532 if (service->fragment_path)
3535 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3539 /* We honour K links only for halt/reboot. For the normal
3540 * runlevels we assume the stop jobs will be implicitly added
3541 * by the core logic. Also, we don't really distinguish here
3542 * between the runlevels 0 and 6 and just add them to the
3543 * special shutdown target. */
3544 SET_FOREACH(service, shutdown_services, j) {
3545 service = unit_follow_merge(service);
3547 if (service->fragment_path)
3550 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3561 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3562 set_free(runlevel_services[i]);
3563 set_free(shutdown_services);
3572 static void service_bus_name_owner_change(
3575 const char *old_owner,
3576 const char *new_owner) {
3578 Service *s = SERVICE(u);
3583 assert(streq(s->bus_name, name));
3584 assert(old_owner || new_owner);
3586 if (old_owner && new_owner)
3587 log_debug_unit(u->id,
3588 "%s's D-Bus name %s changed owner from %s to %s",
3589 u->id, name, old_owner, new_owner);
3591 log_debug_unit(u->id,
3592 "%s's D-Bus name %s no longer registered by %s",
3593 u->id, name, old_owner);
3595 log_debug_unit(u->id,
3596 "%s's D-Bus name %s now registered by %s",
3597 u->id, name, new_owner);
3599 s->bus_name_good = !!new_owner;
3601 if (s->type == SERVICE_DBUS) {
3603 /* service_enter_running() will figure out what to
3605 if (s->state == SERVICE_RUNNING)
3606 service_enter_running(s, SERVICE_SUCCESS);
3607 else if (s->state == SERVICE_START && new_owner)
3608 service_enter_start_post(s);
3610 } else if (new_owner &&
3612 (s->state == SERVICE_START ||
3613 s->state == SERVICE_START_POST ||
3614 s->state == SERVICE_RUNNING ||
3615 s->state == SERVICE_RELOAD)) {
3617 /* Try to acquire PID from bus service */
3618 log_debug_unit(u->id,
3619 "Trying to acquire PID from D-Bus name...");
3621 bus_query_pid(u->manager, name);
3625 static void service_bus_query_pid_done(
3630 Service *s = SERVICE(u);
3635 log_debug_unit(u->id,
3636 "%s's D-Bus name %s is now owned by process %u",
3637 u->id, name, (unsigned) pid);
3639 if (s->main_pid <= 0 &&
3640 (s->state == SERVICE_START ||
3641 s->state == SERVICE_START_POST ||
3642 s->state == SERVICE_RUNNING ||
3643 s->state == SERVICE_RELOAD))
3644 service_set_main_pid(s, pid);
3647 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3652 /* This is called by the socket code when instantiating a new
3653 * service for a stream socket and the socket needs to be
3656 if (UNIT(s)->load_state != UNIT_LOADED)
3659 if (s->socket_fd >= 0)
3662 if (s->state != SERVICE_DEAD)
3666 s->got_socket_fd = true;
3668 unit_ref_set(&s->accept_socket, UNIT(sock));
3670 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3673 static void service_reset_failed(Unit *u) {
3674 Service *s = SERVICE(u);
3678 if (s->state == SERVICE_FAILED)
3679 service_set_state(s, SERVICE_DEAD);
3681 s->result = SERVICE_SUCCESS;
3682 s->reload_result = SERVICE_SUCCESS;
3684 RATELIMIT_RESET(s->start_limit);
3687 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3688 Service *s = SERVICE(u);
3690 Set *pid_set = NULL;
3694 if (s->main_pid <= 0 && who == KILL_MAIN) {
3695 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3699 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3700 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3704 if (who == KILL_CONTROL || who == KILL_ALL)
3705 if (s->control_pid > 0)
3706 if (kill(s->control_pid, signo) < 0)
3709 if (who == KILL_MAIN || who == KILL_ALL)
3710 if (s->main_pid > 0)
3711 if (kill(s->main_pid, signo) < 0)
3714 if (who == KILL_ALL) {
3717 pid_set = set_new(trivial_hash_func, trivial_compare_func);
3721 /* Exclude the control/main pid from being killed via the cgroup */
3722 if (s->control_pid > 0) {
3723 q = set_put(pid_set, LONG_TO_PTR(s->control_pid));
3730 if (s->main_pid > 0) {
3731 q = set_put(pid_set, LONG_TO_PTR(s->main_pid));
3738 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3739 if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3750 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3751 [SERVICE_DEAD] = "dead",
3752 [SERVICE_START_PRE] = "start-pre",
3753 [SERVICE_START] = "start",
3754 [SERVICE_START_POST] = "start-post",
3755 [SERVICE_RUNNING] = "running",
3756 [SERVICE_EXITED] = "exited",
3757 [SERVICE_RELOAD] = "reload",
3758 [SERVICE_STOP] = "stop",
3759 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3760 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3761 [SERVICE_STOP_POST] = "stop-post",
3762 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3763 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3764 [SERVICE_FAILED] = "failed",
3765 [SERVICE_AUTO_RESTART] = "auto-restart",
3768 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3770 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3771 [SERVICE_RESTART_NO] = "no",
3772 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3773 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3774 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3775 [SERVICE_RESTART_ALWAYS] = "always"
3778 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3780 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3781 [SERVICE_SIMPLE] = "simple",
3782 [SERVICE_FORKING] = "forking",
3783 [SERVICE_ONESHOT] = "oneshot",
3784 [SERVICE_DBUS] = "dbus",
3785 [SERVICE_NOTIFY] = "notify",
3786 [SERVICE_IDLE] = "idle"
3789 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3791 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3792 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3793 [SERVICE_EXEC_START] = "ExecStart",
3794 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3795 [SERVICE_EXEC_RELOAD] = "ExecReload",
3796 [SERVICE_EXEC_STOP] = "ExecStop",
3797 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3800 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3802 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3803 [NOTIFY_NONE] = "none",
3804 [NOTIFY_MAIN] = "main",
3805 [NOTIFY_ALL] = "all"
3808 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3810 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3811 [SERVICE_SUCCESS] = "success",
3812 [SERVICE_FAILURE_RESOURCES] = "resources",
3813 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3814 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3815 [SERVICE_FAILURE_SIGNAL] = "signal",
3816 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3817 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3818 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3821 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3823 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3824 [SERVICE_START_LIMIT_NONE] = "none",
3825 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3826 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3827 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3829 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3831 const UnitVTable service_vtable = {
3832 .object_size = sizeof(Service),
3833 .exec_context_offset = offsetof(Service, exec_context),
3840 .init = service_init,
3841 .done = service_done,
3842 .load = service_load,
3844 .coldplug = service_coldplug,
3846 .dump = service_dump,
3848 .start = service_start,
3849 .stop = service_stop,
3850 .reload = service_reload,
3852 .can_reload = service_can_reload,
3854 .kill = service_kill,
3856 .serialize = service_serialize,
3857 .deserialize_item = service_deserialize_item,
3859 .active_state = service_active_state,
3860 .sub_state_to_string = service_sub_state_to_string,
3862 .check_gc = service_check_gc,
3863 .check_snapshot = service_check_snapshot,
3865 .sigchld_event = service_sigchld_event,
3866 .timer_event = service_timer_event,
3867 .fd_event = service_fd_event,
3869 .reset_failed = service_reset_failed,
3871 .cgroup_notify_empty = service_cgroup_notify_event,
3872 .notify_message = service_notify_message,
3874 .bus_name_owner_change = service_bus_name_owner_change,
3875 .bus_query_pid_done = service_bus_query_pid_done,
3877 .bus_interface = "org.freedesktop.systemd1.Service",
3878 .bus_message_handler = bus_service_message_handler,
3879 .bus_invalidating_properties = bus_service_invalidating_properties,
3881 #ifdef HAVE_SYSV_COMPAT
3882 .enumerate = service_enumerate,
3884 .status_message_formats = {
3885 .starting_stopping = {
3886 [0] = "Starting %s...",
3887 [1] = "Stopping %s...",
3889 .finished_start_job = {
3890 [JOB_DONE] = "Started %s.",
3891 [JOB_FAILED] = "Failed to start %s.",
3892 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3893 [JOB_TIMEOUT] = "Timed out starting %s.",
3895 .finished_stop_job = {
3896 [JOB_DONE] = "Stopped %s.",
3897 [JOB_FAILED] = "Stopped (with error) %s.",
3898 [JOB_TIMEOUT] = "Timed out stopping %s.",