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 "dbus-common.h"
40 #include "exit-status.h"
42 #include "path-util.h"
48 #ifdef HAVE_SYSV_COMPAT
50 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
52 typedef enum RunlevelType {
60 const RunlevelType type;
62 /* Standard SysV runlevels for start-up */
63 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
64 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
65 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
66 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
67 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
69 /* Standard SysV runlevels for shutdown */
70 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
71 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
73 /* Note that the order here matters, as we read the
74 directories in this order, and we want to make sure that
75 sysv_start_priority is known when we first load the
76 unit. And that value we only know from S links. Hence
77 UP must be read before DOWN */
80 #define RUNLEVELS_UP "12345"
83 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
84 [SERVICE_DEAD] = UNIT_INACTIVE,
85 [SERVICE_START_PRE] = UNIT_ACTIVATING,
86 [SERVICE_START] = UNIT_ACTIVATING,
87 [SERVICE_START_POST] = UNIT_ACTIVATING,
88 [SERVICE_RUNNING] = UNIT_ACTIVE,
89 [SERVICE_EXITED] = UNIT_ACTIVE,
90 [SERVICE_RELOAD] = UNIT_RELOADING,
91 [SERVICE_STOP] = UNIT_DEACTIVATING,
92 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
93 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
94 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
95 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
96 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
97 [SERVICE_FAILED] = UNIT_FAILED,
98 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
101 /* For Type=idle we never want to delay any other jobs, hence we
102 * consider idle jobs active as soon as we start working on them */
103 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
104 [SERVICE_DEAD] = UNIT_INACTIVE,
105 [SERVICE_START_PRE] = UNIT_ACTIVE,
106 [SERVICE_START] = UNIT_ACTIVE,
107 [SERVICE_START_POST] = UNIT_ACTIVE,
108 [SERVICE_RUNNING] = UNIT_ACTIVE,
109 [SERVICE_EXITED] = UNIT_ACTIVE,
110 [SERVICE_RELOAD] = UNIT_RELOADING,
111 [SERVICE_STOP] = UNIT_DEACTIVATING,
112 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
113 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
114 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
115 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
116 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
117 [SERVICE_FAILED] = UNIT_FAILED,
118 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
121 static void service_init(Unit *u) {
122 Service *s = SERVICE(u);
125 assert(u->load_state == UNIT_STUB);
127 s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
128 s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
129 s->restart_usec = DEFAULT_RESTART_USEC;
130 s->type = _SERVICE_TYPE_INVALID;
132 watch_init(&s->watchdog_watch);
133 watch_init(&s->timer_watch);
135 #ifdef HAVE_SYSV_COMPAT
136 s->sysv_start_priority = -1;
137 s->sysv_start_priority_from_rcnd = -1;
140 s->guess_main_pid = true;
142 exec_context_init(&s->exec_context);
143 kill_context_init(&s->kill_context);
144 cgroup_context_init(&s->cgroup_context);
146 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
148 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
151 static void service_unwatch_control_pid(Service *s) {
154 if (s->control_pid <= 0)
157 unit_unwatch_pid(UNIT(s), s->control_pid);
161 static void service_unwatch_main_pid(Service *s) {
164 if (s->main_pid <= 0)
167 unit_unwatch_pid(UNIT(s), s->main_pid);
171 static void service_unwatch_pid_file(Service *s) {
172 if (!s->pid_file_pathspec)
175 log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
176 UNIT(s)->id, s->pid_file_pathspec->path);
177 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
178 path_spec_done(s->pid_file_pathspec);
179 free(s->pid_file_pathspec);
180 s->pid_file_pathspec = NULL;
183 static int service_set_main_pid(Service *s, pid_t pid) {
194 service_unwatch_main_pid(s);
197 s->main_pid_known = true;
199 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
200 log_warning_unit(UNIT(s)->id,
201 "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
202 UNIT(s)->id, (unsigned long) pid);
204 s->main_pid_alien = true;
206 s->main_pid_alien = false;
208 exec_status_start(&s->main_exec_status, pid);
213 static void service_close_socket_fd(Service *s) {
216 if (s->socket_fd < 0)
219 close_nointr_nofail(s->socket_fd);
223 static void service_connection_unref(Service *s) {
226 if (!UNIT_ISSET(s->accept_socket))
229 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
230 unit_ref_unset(&s->accept_socket);
233 static void service_stop_watchdog(Service *s) {
236 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
237 s->watchdog_timestamp.realtime = 0;
238 s->watchdog_timestamp.monotonic = 0;
241 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
243 static void service_handle_watchdog(Service *s) {
249 if (s->watchdog_usec == 0)
252 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
253 if (offset >= s->watchdog_usec) {
254 log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
255 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_WATCHDOG);
259 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->watchdog_usec - offset, &s->watchdog_watch);
261 log_warning_unit(UNIT(s)->id,
262 "%s failed to install watchdog timer: %s",
263 UNIT(s)->id, strerror(-r));
266 static void service_reset_watchdog(Service *s) {
269 dual_timestamp_get(&s->watchdog_timestamp);
270 service_handle_watchdog(s);
273 static void service_done(Unit *u) {
274 Service *s = SERVICE(u);
281 #ifdef HAVE_SYSV_COMPAT
282 free(s->sysv_runlevels);
283 s->sysv_runlevels = NULL;
286 free(s->status_text);
287 s->status_text = NULL;
289 cgroup_context_done(&s->cgroup_context);
290 exec_context_done(&s->exec_context, manager_is_reloading_or_reexecuting(u->manager));
291 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
292 s->control_command = NULL;
293 s->main_command = NULL;
295 set_free(s->restart_ignore_status.code);
296 s->restart_ignore_status.code = NULL;
297 set_free(s->restart_ignore_status.signal);
298 s->restart_ignore_status.signal = NULL;
300 set_free(s->success_status.code);
301 s->success_status.code = NULL;
302 set_free(s->success_status.signal);
303 s->success_status.signal = NULL;
305 /* This will leak a process, but at least no memory or any of
307 service_unwatch_main_pid(s);
308 service_unwatch_control_pid(s);
309 service_unwatch_pid_file(s);
312 unit_unwatch_bus_name(u, s->bus_name);
317 service_close_socket_fd(s);
318 service_connection_unref(s);
320 unit_ref_unset(&s->accept_socket);
322 service_stop_watchdog(s);
324 unit_unwatch_timer(u, &s->timer_watch);
327 #ifdef HAVE_SYSV_COMPAT
328 static char *sysv_translate_name(const char *name) {
331 r = new(char, strlen(name) + sizeof(".service"));
335 if (endswith(name, ".sh"))
336 /* Drop .sh suffix */
337 strcpy(stpcpy(r, name) - 3, ".service");
339 /* Normal init script name */
340 strcpy(stpcpy(r, name), ".service");
345 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
347 /* We silently ignore the $ prefix here. According to the LSB
348 * spec it simply indicates whether something is a
349 * standardized name or a distribution-specific one. Since we
350 * just follow what already exists and do not introduce new
351 * uses or names we don't care who introduced a new name. */
353 static const char * const table[] = {
354 /* LSB defined facilities */
356 "network", SPECIAL_NETWORK_TARGET,
357 "named", SPECIAL_NSS_LOOKUP_TARGET,
358 "portmap", SPECIAL_RPCBIND_TARGET,
359 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
361 "time", SPECIAL_TIME_SYNC_TARGET,
371 n = *name == '$' ? name + 1 : name;
373 for (i = 0; i < ELEMENTSOF(table); i += 2) {
375 if (!streq(table[i], n))
381 r = strdup(table[i+1]);
388 /* If we don't know this name, fallback heuristics to figure
389 * out whether something is a target or a service alias. */
392 if (!unit_prefix_is_valid(n))
395 /* Facilities starting with $ are most likely targets */
396 r = unit_name_build(n, NULL, ".target");
397 } else if (filename && streq(name, filename))
398 /* Names equaling the file name of the services are redundant */
401 /* Everything else we assume to be normal service names */
402 r = sysv_translate_name(n);
413 static int sysv_fix_order(Service *s) {
419 if (s->sysv_start_priority < 0)
422 /* For each pair of services where at least one lacks a LSB
423 * header, we use the start priority value to order things. */
425 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
428 bool special_s, special_t;
435 if (UNIT(t)->load_state != UNIT_LOADED)
438 if (t->sysv_start_priority < 0)
441 /* If both units have modern headers we don't care
442 * about the priorities */
443 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
444 (UNIT(t)->fragment_path || t->sysv_has_lsb))
447 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
448 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
450 if (special_t && !special_s)
452 else if (special_s && !special_t)
454 else if (t->sysv_start_priority < s->sysv_start_priority)
456 else if (t->sysv_start_priority > s->sysv_start_priority)
461 /* FIXME: Maybe we should compare the name here lexicographically? */
463 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
470 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
473 if (!(c = new0(ExecCommand, 1)))
476 if (!(c->path = strdup(path))) {
481 if (!(c->argv = strv_new(path, arg1, NULL))) {
490 static int sysv_exec_commands(Service *s, const bool supports_reload) {
495 assert(UNIT(s)->source_path);
497 c = exec_command_new(UNIT(s)->source_path, "start");
500 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
502 c = exec_command_new(UNIT(s)->source_path, "stop");
505 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
507 if (supports_reload) {
508 c = exec_command_new(UNIT(s)->source_path, "reload");
511 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
517 static bool usage_contains_reload(const char *line) {
518 return (strcasestr(line, "{reload|") ||
519 strcasestr(line, "{reload}") ||
520 strcasestr(line, "{reload\"") ||
521 strcasestr(line, "|reload|") ||
522 strcasestr(line, "|reload}") ||
523 strcasestr(line, "|reload\""));
526 static int service_load_sysv_path(Service *s, const char *path) {
538 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
540 bool supports_reload = false;
547 f = fopen(path, "re");
549 r = errno == ENOENT ? 0 : -errno;
553 if (fstat(fileno(f), &st) < 0) {
558 free(u->source_path);
559 u->source_path = strdup(path);
560 if (!u->source_path) {
564 u->source_mtime = timespec_load(&st.st_mtim);
566 if (null_or_empty(&st)) {
567 u->load_state = UNIT_MASKED;
575 char l[LINE_MAX], *t;
577 if (!fgets(l, sizeof(l), f)) {
582 log_error_unit(u->id,
583 "Failed to read configuration file '%s': %s",
592 /* Try to figure out whether this init script supports
593 * the reload operation. This heuristic looks for
594 * "Usage" lines which include the reload option. */
595 if ( state == USAGE_CONTINUATION ||
596 (state == NORMAL && strcasestr(t, "usage"))) {
597 if (usage_contains_reload(t)) {
598 supports_reload = true;
600 } else if (t[strlen(t)-1] == '\\')
601 state = USAGE_CONTINUATION;
609 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
611 s->sysv_has_lsb = true;
615 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
621 t += strspn(t, WHITESPACE);
623 if (state == NORMAL) {
625 /* Try to parse Red Hat style chkconfig headers */
627 if (startswith_no_case(t, "chkconfig:")) {
629 char runlevels[16], *k;
633 if (sscanf(t+10, "%15s %i %*i",
635 &start_priority) != 2) {
637 log_warning_unit(u->id,
638 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
643 /* A start priority gathered from the
644 * symlink farms is preferred over the
645 * data from the LSB header. */
646 if (start_priority < 0 || start_priority > 99)
647 log_warning_unit(u->id,
648 "[%s:%u] Start priority out of range. Ignoring.",
651 s->sysv_start_priority = start_priority;
653 char_array_0(runlevels);
654 k = delete_chars(runlevels, WHITESPACE "-");
659 if (!(d = strdup(k))) {
664 free(s->sysv_runlevels);
665 s->sysv_runlevels = d;
668 } else if (startswith_no_case(t, "description:")) {
670 size_t k = strlen(t);
674 if (t[k-1] == '\\') {
679 if ((j = strstrip(t+12)) && *j) {
680 if (!(d = strdup(j))) {
687 free(chkconfig_description);
688 chkconfig_description = d;
690 } else if (startswith_no_case(t, "pidfile:")) {
697 if (!path_is_absolute(fn)) {
698 log_warning_unit(u->id,
699 "[%s:%u] PID file not absolute. Ignoring.",
704 if (!(fn = strdup(fn))) {
713 } else if (state == DESCRIPTION) {
715 /* Try to parse Red Hat style description
718 size_t k = strlen(t);
726 if ((j = strstrip(t)) && *j) {
729 if (chkconfig_description)
730 d = strjoin(chkconfig_description, " ", j, NULL);
739 free(chkconfig_description);
740 chkconfig_description = d;
743 } else if (state == LSB || state == LSB_DESCRIPTION) {
745 if (startswith_no_case(t, "Provides:")) {
751 FOREACH_WORD_QUOTED(w, z, t+9, i) {
754 if (!(n = strndup(w, z))) {
759 r = sysv_translate_facility(n, path_get_file_name(path), &m);
768 if (unit_name_to_type(m) == UNIT_SERVICE)
769 r = unit_merge_by_name(u, m);
776 * indication that the
778 * now available. This
781 * targets do NOT pull
784 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
787 log_error_unit(u->id,
788 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
789 path, line, m, strerror(-r));
794 } else if (startswith_no_case(t, "Required-Start:") ||
795 startswith_no_case(t, "Should-Start:") ||
796 startswith_no_case(t, "X-Start-Before:") ||
797 startswith_no_case(t, "X-Start-After:")) {
803 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
806 if (!(n = strndup(w, z))) {
811 r = sysv_translate_facility(n, path_get_file_name(path), &m);
813 log_error_unit(u->id,
814 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
815 path, line, n, strerror(-r));
825 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
828 log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
829 path, line, m, strerror(-r));
833 } else if (startswith_no_case(t, "Default-Start:")) {
838 k = delete_chars(t+14, WHITESPACE "-");
841 if (!(d = strdup(k))) {
846 free(s->sysv_runlevels);
847 s->sysv_runlevels = d;
850 } else if (startswith_no_case(t, "Description:")) {
853 state = LSB_DESCRIPTION;
855 if ((j = strstrip(t+12)) && *j) {
856 if (!(d = strdup(j))) {
863 free(long_description);
864 long_description = d;
866 } else if (startswith_no_case(t, "Short-Description:")) {
871 if ((j = strstrip(t+18)) && *j) {
872 if (!(d = strdup(j))) {
879 free(short_description);
880 short_description = d;
882 } else if (state == LSB_DESCRIPTION) {
884 if (startswith(l, "#\t") || startswith(l, "# ")) {
887 if ((j = strstrip(t)) && *j) {
890 if (long_description)
891 d = strjoin(long_description, " ", t, NULL);
900 free(long_description);
901 long_description = d;
910 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
913 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
914 /* If there a runlevels configured for this service
915 * but none of the standard ones, then we assume this
916 * is some special kind of service (which might be
917 * needed for early boot) and don't create any links
920 UNIT(s)->default_dependencies = false;
922 /* Don't timeout special services during boot (like fsck) */
923 s->timeout_start_usec = 0;
924 s->timeout_stop_usec = 0;
926 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
927 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
930 /* Special setting for all SysV services */
931 s->type = SERVICE_FORKING;
932 s->remain_after_exit = !s->pid_file;
933 s->guess_main_pid = false;
934 s->restart = SERVICE_RESTART_NO;
935 s->exec_context.ignore_sigpipe = false;
936 s->kill_context.kill_mode = KILL_PROCESS;
938 /* We use the long description only if
939 * no short description is set. */
941 if (short_description)
942 description = short_description;
943 else if (chkconfig_description)
944 description = chkconfig_description;
945 else if (long_description)
946 description = long_description;
953 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
961 /* The priority that has been set in /etc/rcN.d/ hierarchies
962 * takes precedence over what is stored as default in the LSB
964 if (s->sysv_start_priority_from_rcnd >= 0)
965 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
967 u->load_state = UNIT_LOADED;
975 free(short_description);
976 free(long_description);
977 free(chkconfig_description);
982 static int service_load_sysv_name(Service *s, const char *name) {
988 /* For SysV services we strip the *.sh suffixes. */
989 if (endswith(name, ".sh.service"))
992 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
996 path = strjoin(*p, "/", name, NULL);
1000 assert(endswith(path, ".service"));
1001 path[strlen(path)-8] = 0;
1003 r = service_load_sysv_path(s, path);
1005 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1006 /* Try *.sh source'able init scripts */
1007 strcat(path, ".sh");
1008 r = service_load_sysv_path(s, path);
1015 if (UNIT(s)->load_state != UNIT_STUB)
1022 static int service_load_sysv(Service *s) {
1029 /* Load service data from SysV init scripts, preferably with
1030 * LSB headers ... */
1032 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1035 if ((t = UNIT(s)->id))
1036 if ((r = service_load_sysv_name(s, t)) < 0)
1039 if (UNIT(s)->load_state == UNIT_STUB)
1040 SET_FOREACH(t, UNIT(s)->names, i) {
1041 if (t == UNIT(s)->id)
1044 if ((r = service_load_sysv_name(s, t)) < 0)
1047 if (UNIT(s)->load_state != UNIT_STUB)
1055 static int fsck_fix_order(Service *s) {
1061 if (s->fsck_passno <= 0)
1064 /* For each pair of services where both have an fsck priority
1065 * we order things based on it. */
1067 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1076 if (UNIT(t)->load_state != UNIT_LOADED)
1079 if (t->fsck_passno <= 0)
1082 if (t->fsck_passno < s->fsck_passno)
1084 else if (t->fsck_passno > s->fsck_passno)
1089 r = unit_add_dependency(UNIT(s), d, UNIT(t), true);
1097 static int service_verify(Service *s) {
1100 if (UNIT(s)->load_state != UNIT_LOADED)
1103 if (!s->exec_command[SERVICE_EXEC_START]) {
1104 log_error_unit(UNIT(s)->id,
1105 "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1109 if (s->type != SERVICE_ONESHOT &&
1110 s->exec_command[SERVICE_EXEC_START]->command_next) {
1111 log_error_unit(UNIT(s)->id,
1112 "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1116 if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) {
1117 log_error_unit(UNIT(s)->id,
1118 "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1122 if (s->type == SERVICE_DBUS && !s->bus_name) {
1123 log_error_unit(UNIT(s)->id,
1124 "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1128 if (s->bus_name && s->type != SERVICE_DBUS)
1129 log_warning_unit(UNIT(s)->id,
1130 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1132 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1133 log_error_unit(UNIT(s)->id,
1134 "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1141 static int service_add_default_dependencies(Service *s) {
1146 /* Add a number of automatic dependencies useful for the
1147 * majority of services. */
1149 /* First, pull in base system */
1150 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
1151 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1152 SPECIAL_BASIC_TARGET, NULL, true);
1156 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
1157 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1158 SPECIAL_SOCKETS_TARGET, NULL, true);
1162 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1163 SPECIAL_TIMERS_TARGET, NULL, true);
1167 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
1168 SPECIAL_PATHS_TARGET, NULL, true);
1173 /* Second, activate normal shutdown */
1174 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
1175 SPECIAL_SHUTDOWN_TARGET, NULL, true);
1179 static void service_fix_output(Service *s) {
1182 /* If nothing has been explicitly configured, patch default
1183 * output in. If input is socket/tty we avoid this however,
1184 * since in that case we want output to default to the same
1185 * place as we read input from. */
1187 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1188 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1189 s->exec_context.std_input == EXEC_INPUT_NULL)
1190 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1192 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1193 s->exec_context.std_input == EXEC_INPUT_NULL)
1194 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1197 static int service_load(Unit *u) {
1199 Service *s = SERVICE(u);
1203 /* Load a .service file */
1204 r = unit_load_fragment(u);
1208 #ifdef HAVE_SYSV_COMPAT
1209 /* Load a classic init script as a fallback, if we couldn't find anything */
1210 if (u->load_state == UNIT_STUB) {
1211 r = service_load_sysv(s);
1217 /* Still nothing found? Then let's give up */
1218 if (u->load_state == UNIT_STUB)
1221 /* This is a new unit? Then let's add in some extras */
1222 if (u->load_state == UNIT_LOADED) {
1224 /* We were able to load something, then let's add in
1225 * the dropin directories. */
1226 r = unit_load_dropin(u);
1230 if (s->type == _SERVICE_TYPE_INVALID)
1231 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1233 /* Oneshot services have disabled start timeout by default */
1234 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1235 s->timeout_start_usec = 0;
1237 service_fix_output(s);
1239 r = unit_add_exec_dependencies(u, &s->exec_context);
1243 r = unit_add_default_slice(u);
1247 #ifdef HAVE_SYSV_COMPAT
1248 r = sysv_fix_order(s);
1253 r = fsck_fix_order(s);
1258 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1261 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1262 s->notify_access = NOTIFY_MAIN;
1264 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1265 s->notify_access = NOTIFY_MAIN;
1267 if (s->type == SERVICE_DBUS || s->bus_name) {
1268 r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
1269 SPECIAL_DBUS_SOCKET, NULL, true);
1274 if (UNIT(s)->default_dependencies) {
1275 r = service_add_default_dependencies(s);
1280 r = unit_exec_context_defaults(u, &s->exec_context);
1285 return service_verify(s);
1288 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1290 ServiceExecCommand c;
1291 Service *s = SERVICE(u);
1292 const char *prefix2;
1293 _cleanup_free_ char *p2 = NULL;
1297 p2 = strappend(prefix, "\t");
1298 prefix2 = p2 ? p2 : prefix;
1301 "%sService State: %s\n"
1303 "%sReload Result: %s\n"
1304 "%sPermissionsStartOnly: %s\n"
1305 "%sRootDirectoryStartOnly: %s\n"
1306 "%sRemainAfterExit: %s\n"
1307 "%sGuessMainPID: %s\n"
1310 "%sNotifyAccess: %s\n",
1311 prefix, service_state_to_string(s->state),
1312 prefix, service_result_to_string(s->result),
1313 prefix, service_result_to_string(s->reload_result),
1314 prefix, yes_no(s->permissions_start_only),
1315 prefix, yes_no(s->root_directory_start_only),
1316 prefix, yes_no(s->remain_after_exit),
1317 prefix, yes_no(s->guess_main_pid),
1318 prefix, service_type_to_string(s->type),
1319 prefix, service_restart_to_string(s->restart),
1320 prefix, notify_access_to_string(s->notify_access));
1322 if (s->control_pid > 0)
1324 "%sControl PID: %lu\n",
1325 prefix, (unsigned long) s->control_pid);
1327 if (s->main_pid > 0)
1330 "%sMain PID Known: %s\n"
1331 "%sMain PID Alien: %s\n",
1332 prefix, (unsigned long) s->main_pid,
1333 prefix, yes_no(s->main_pid_known),
1334 prefix, yes_no(s->main_pid_alien));
1339 prefix, s->pid_file);
1344 "%sBus Name Good: %s\n",
1345 prefix, s->bus_name,
1346 prefix, yes_no(s->bus_name_good));
1348 kill_context_dump(&s->kill_context, f, prefix);
1349 exec_context_dump(&s->exec_context, f, prefix);
1351 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1353 if (!s->exec_command[c])
1356 fprintf(f, "%s-> %s:\n",
1357 prefix, service_exec_command_to_string(c));
1359 exec_command_dump_list(s->exec_command[c], f, prefix2);
1362 #ifdef HAVE_SYSV_COMPAT
1365 "%sSysV Init Script has LSB Header: %s\n"
1366 "%sSysVEnabled: %s\n",
1367 prefix, yes_no(s->sysv_has_lsb),
1368 prefix, yes_no(s->sysv_enabled));
1370 if (s->sysv_start_priority >= 0)
1372 "%sSysVStartPriority: %i\n",
1373 prefix, s->sysv_start_priority);
1375 if (s->sysv_runlevels)
1376 fprintf(f, "%sSysVRunLevels: %s\n",
1377 prefix, s->sysv_runlevels);
1380 if (s->fsck_passno > 0)
1382 "%sFsckPassNo: %i\n",
1383 prefix, s->fsck_passno);
1386 fprintf(f, "%sStatus Text: %s\n",
1387 prefix, s->status_text);
1390 static int service_load_pid_file(Service *s, bool may_warn) {
1391 _cleanup_free_ char *k = NULL;
1400 r = read_one_line_file(s->pid_file, &k);
1403 log_info_unit(UNIT(s)->id,
1404 "PID file %s not readable (yet?) after %s.",
1405 s->pid_file, service_state_to_string(s->state));
1409 r = parse_pid(k, &pid);
1412 log_info_unit(UNIT(s)->id,
1413 "Failed to read PID from file %s: %s",
1414 s->pid_file, strerror(-r));
1418 if (kill(pid, 0) < 0 && errno != EPERM) {
1420 log_info_unit(UNIT(s)->id,
1421 "PID %lu read from file %s does not exist.",
1422 (unsigned long) pid, s->pid_file);
1426 if (s->main_pid_known) {
1427 if (pid == s->main_pid)
1430 log_debug_unit(UNIT(s)->id,
1431 "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_unit(UNIT(s)->id,
1437 "Main PID loaded: %lu", (unsigned long) pid);
1439 r = service_set_main_pid(s, pid);
1443 r = unit_watch_pid(UNIT(s), pid);
1445 /* FIXME: we need to do something here */
1446 log_warning_unit(UNIT(s)->id,
1447 "Failed to watch PID %lu from service %s",
1448 (unsigned long) pid, UNIT(s)->id);
1455 static int service_search_main_pid(Service *s) {
1461 /* If we know it anyway, don't ever fallback to unreliable
1463 if (s->main_pid_known)
1466 if (!s->guess_main_pid)
1469 assert(s->main_pid <= 0);
1471 pid = unit_search_main_pid(UNIT(s));
1475 log_debug_unit(UNIT(s)->id,
1476 "Main PID guessed: %lu", (unsigned long) pid);
1477 r = service_set_main_pid(s, pid);
1481 r = unit_watch_pid(UNIT(s), pid);
1483 /* FIXME: we need to do something here */
1484 log_warning_unit(UNIT(s)->id,
1485 "Failed to watch PID %lu from service %s",
1486 (unsigned long) pid, UNIT(s)->id);
1492 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1498 /* Notifies all our sockets when we die */
1500 if (s->socket_fd >= 0)
1503 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1504 if (u->type == UNIT_SOCKET)
1505 socket_notify_service_dead(SOCKET(u), failed_permanent);
1510 static void service_set_state(Service *s, ServiceState state) {
1511 ServiceState old_state;
1512 const UnitActiveState *table;
1515 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1517 old_state = s->state;
1520 service_unwatch_pid_file(s);
1522 if (state != SERVICE_START_PRE &&
1523 state != SERVICE_START &&
1524 state != SERVICE_START_POST &&
1525 state != SERVICE_RELOAD &&
1526 state != SERVICE_STOP &&
1527 state != SERVICE_STOP_SIGTERM &&
1528 state != SERVICE_STOP_SIGKILL &&
1529 state != SERVICE_STOP_POST &&
1530 state != SERVICE_FINAL_SIGTERM &&
1531 state != SERVICE_FINAL_SIGKILL &&
1532 state != SERVICE_AUTO_RESTART)
1533 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1535 if (state != SERVICE_START &&
1536 state != SERVICE_START_POST &&
1537 state != SERVICE_RUNNING &&
1538 state != SERVICE_RELOAD &&
1539 state != SERVICE_STOP &&
1540 state != SERVICE_STOP_SIGTERM &&
1541 state != SERVICE_STOP_SIGKILL) {
1542 service_unwatch_main_pid(s);
1543 s->main_command = NULL;
1546 if (state != SERVICE_START_PRE &&
1547 state != SERVICE_START &&
1548 state != SERVICE_START_POST &&
1549 state != SERVICE_RELOAD &&
1550 state != SERVICE_STOP &&
1551 state != SERVICE_STOP_SIGTERM &&
1552 state != SERVICE_STOP_SIGKILL &&
1553 state != SERVICE_STOP_POST &&
1554 state != SERVICE_FINAL_SIGTERM &&
1555 state != SERVICE_FINAL_SIGKILL) {
1556 service_unwatch_control_pid(s);
1557 s->control_command = NULL;
1558 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1561 if (state == SERVICE_FAILED)
1562 service_notify_sockets_dead(s, s->result == SERVICE_FAILURE_START_LIMIT);
1564 if (state == SERVICE_DEAD ||
1565 state == SERVICE_STOP ||
1566 state == SERVICE_STOP_SIGTERM ||
1567 state == SERVICE_STOP_SIGKILL ||
1568 state == SERVICE_STOP_POST ||
1569 state == SERVICE_FINAL_SIGTERM ||
1570 state == SERVICE_FINAL_SIGKILL ||
1571 state == SERVICE_AUTO_RESTART)
1572 service_notify_sockets_dead(s, false);
1574 if (state != SERVICE_START_PRE &&
1575 state != SERVICE_START &&
1576 state != SERVICE_START_POST &&
1577 state != SERVICE_RUNNING &&
1578 state != SERVICE_RELOAD &&
1579 state != SERVICE_STOP &&
1580 state != SERVICE_STOP_SIGTERM &&
1581 state != SERVICE_STOP_SIGKILL &&
1582 state != SERVICE_STOP_POST &&
1583 state != SERVICE_FINAL_SIGTERM &&
1584 state != SERVICE_FINAL_SIGKILL &&
1585 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1586 service_close_socket_fd(s);
1587 service_connection_unref(s);
1590 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1591 service_stop_watchdog(s);
1593 /* For the inactive states unit_notify() will trim the cgroup,
1594 * but for exit we have to do that ourselves... */
1595 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1596 unit_destroy_cgroup(UNIT(s));
1598 if (old_state != state)
1599 log_debug_unit(UNIT(s)->id,
1600 "%s changed %s -> %s", UNIT(s)->id,
1601 service_state_to_string(old_state),
1602 service_state_to_string(state));
1604 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1605 s->reload_result = SERVICE_SUCCESS;
1608 static int service_coldplug(Unit *u) {
1609 Service *s = SERVICE(u);
1613 assert(s->state == SERVICE_DEAD);
1615 if (s->deserialized_state != s->state) {
1617 if (s->deserialized_state == SERVICE_START_PRE ||
1618 s->deserialized_state == SERVICE_START ||
1619 s->deserialized_state == SERVICE_START_POST ||
1620 s->deserialized_state == SERVICE_RELOAD ||
1621 s->deserialized_state == SERVICE_STOP ||
1622 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1623 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1624 s->deserialized_state == SERVICE_STOP_POST ||
1625 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1626 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1627 s->deserialized_state == SERVICE_AUTO_RESTART) {
1629 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1632 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1634 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1640 if ((s->deserialized_state == SERVICE_START &&
1641 (s->type == SERVICE_FORKING ||
1642 s->type == SERVICE_DBUS ||
1643 s->type == SERVICE_ONESHOT ||
1644 s->type == SERVICE_NOTIFY)) ||
1645 s->deserialized_state == SERVICE_START_POST ||
1646 s->deserialized_state == SERVICE_RUNNING ||
1647 s->deserialized_state == SERVICE_RELOAD ||
1648 s->deserialized_state == SERVICE_STOP ||
1649 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1650 s->deserialized_state == SERVICE_STOP_SIGKILL)
1651 if (s->main_pid > 0) {
1652 r = unit_watch_pid(UNIT(s), s->main_pid);
1657 if (s->deserialized_state == SERVICE_START_PRE ||
1658 s->deserialized_state == SERVICE_START ||
1659 s->deserialized_state == SERVICE_START_POST ||
1660 s->deserialized_state == SERVICE_RELOAD ||
1661 s->deserialized_state == SERVICE_STOP ||
1662 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1663 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1664 s->deserialized_state == SERVICE_STOP_POST ||
1665 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1666 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1667 if (s->control_pid > 0) {
1668 r = unit_watch_pid(UNIT(s), s->control_pid);
1673 if (s->deserialized_state == SERVICE_START_POST ||
1674 s->deserialized_state == SERVICE_RUNNING)
1675 service_handle_watchdog(s);
1677 service_set_state(s, s->deserialized_state);
1682 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1686 unsigned rn_fds = 0;
1693 if (s->socket_fd >= 0)
1696 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1701 if (u->type != UNIT_SOCKET)
1706 r = socket_collect_fds(sock, &cfds, &cn_fds);
1719 t = new(int, rn_fds+cn_fds);
1726 memcpy(t, rfds, rn_fds * sizeof(int));
1727 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1732 rn_fds = rn_fds+cn_fds;
1747 static int service_spawn(
1752 bool apply_permissions,
1754 bool apply_tty_stdin,
1755 bool set_notify_socket,
1762 _cleanup_free_ int *fdsbuf = NULL;
1763 unsigned n_fds = 0, n_env = 0;
1764 _cleanup_strv_free_ char
1765 **argv = NULL, **final_env = NULL, **our_env = NULL;
1772 unit_realize_cgroup(UNIT(s));
1775 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1776 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1777 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1779 if (s->socket_fd >= 0) {
1780 fds = &s->socket_fd;
1783 r = service_collect_fds(s, &fdsbuf, &n_fds);
1791 if (timeout && s->timeout_start_usec) {
1792 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1793 s->timeout_start_usec, &s->timer_watch);
1797 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1799 argv = unit_full_printf_strv(UNIT(s), c->argv);
1805 our_env = new0(char*, 5);
1811 if (set_notify_socket)
1812 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1817 if (s->main_pid > 0)
1818 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1823 if (s->watchdog_usec > 0)
1824 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1829 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1830 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1835 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1841 if (is_control && UNIT(s)->cgroup_path) {
1842 path = strappenda(UNIT(s)->cgroup_path, "/control");
1843 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1845 path = UNIT(s)->cgroup_path;
1855 UNIT(s)->manager->confirm_spawn,
1856 UNIT(s)->cgroup_mask,
1859 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1864 r = unit_watch_pid(UNIT(s), pid);
1866 /* FIXME: we need to do something here */
1875 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1880 static int main_pid_good(Service *s) {
1883 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1886 /* If we know the pid file, then lets just check if it is
1888 if (s->main_pid_known) {
1890 /* If it's an alien child let's check if it is still
1892 if (s->main_pid_alien && s->main_pid > 0)
1893 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1895 /* .. otherwise assume we'll get a SIGCHLD for it,
1896 * which we really should wait for to collect exit
1897 * status and code */
1898 return s->main_pid > 0;
1901 /* We don't know the pid */
1905 _pure_ static int control_pid_good(Service *s) {
1908 return s->control_pid > 0;
1911 static int cgroup_good(Service *s) {
1916 if (!UNIT(s)->cgroup_path)
1919 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1926 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1930 if (f != SERVICE_SUCCESS)
1933 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1935 if (allow_restart &&
1936 !s->forbid_restart &&
1937 (s->restart == SERVICE_RESTART_ALWAYS ||
1938 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1939 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1940 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1941 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1942 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1943 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1944 (s->result != SERVICE_FAILURE_SIGNAL ||
1945 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1948 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1952 service_set_state(s, SERVICE_AUTO_RESTART);
1955 s->forbid_restart = false;
1957 /* we want fresh tmpdirs in case service is started again immediately */
1958 exec_context_tmp_dirs_done(&s->exec_context);
1963 log_warning_unit(UNIT(s)->id,
1964 "%s failed to run install restart timer: %s",
1965 UNIT(s)->id, strerror(-r));
1966 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1969 static void service_enter_stop_post(Service *s, ServiceResult f) {
1973 if (f != SERVICE_SUCCESS)
1976 service_unwatch_control_pid(s);
1978 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1979 if (s->control_command) {
1980 s->control_command_id = SERVICE_EXEC_STOP_POST;
1982 r = service_spawn(s,
1986 !s->permissions_start_only,
1987 !s->root_directory_start_only,
1996 service_set_state(s, SERVICE_STOP_POST);
1998 service_enter_dead(s, SERVICE_SUCCESS, true);
2003 log_warning_unit(UNIT(s)->id,
2004 "%s failed to run 'stop-post' task: %s",
2005 UNIT(s)->id, strerror(-r));
2006 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2009 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
2014 if (f != SERVICE_SUCCESS)
2017 r = unit_kill_context(
2020 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2028 if (s->timeout_stop_usec > 0) {
2029 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2030 s->timeout_stop_usec, &s->timer_watch);
2035 service_set_state(s, state);
2036 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2037 service_enter_stop_post(s, SERVICE_SUCCESS);
2039 service_enter_dead(s, SERVICE_SUCCESS, true);
2044 log_warning_unit(UNIT(s)->id,
2045 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2047 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2048 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2050 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2053 static void service_enter_stop(Service *s, ServiceResult f) {
2058 if (f != SERVICE_SUCCESS)
2061 service_unwatch_control_pid(s);
2063 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2064 if (s->control_command) {
2065 s->control_command_id = SERVICE_EXEC_STOP;
2067 r = service_spawn(s,
2071 !s->permissions_start_only,
2072 !s->root_directory_start_only,
2080 service_set_state(s, SERVICE_STOP);
2082 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2087 log_warning_unit(UNIT(s)->id,
2088 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2089 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2092 static void service_enter_running(Service *s, ServiceResult f) {
2093 int main_pid_ok, cgroup_ok;
2096 if (f != SERVICE_SUCCESS)
2099 main_pid_ok = main_pid_good(s);
2100 cgroup_ok = cgroup_good(s);
2102 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2103 (s->bus_name_good || s->type != SERVICE_DBUS))
2104 service_set_state(s, SERVICE_RUNNING);
2105 else if (s->remain_after_exit)
2106 service_set_state(s, SERVICE_EXITED);
2108 service_enter_stop(s, SERVICE_SUCCESS);
2111 static void service_enter_start_post(Service *s) {
2115 service_unwatch_control_pid(s);
2117 if (s->watchdog_usec > 0)
2118 service_reset_watchdog(s);
2120 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2121 if (s->control_command) {
2122 s->control_command_id = SERVICE_EXEC_START_POST;
2124 r = service_spawn(s,
2128 !s->permissions_start_only,
2129 !s->root_directory_start_only,
2137 service_set_state(s, SERVICE_START_POST);
2139 service_enter_running(s, SERVICE_SUCCESS);
2144 log_warning_unit(UNIT(s)->id,
2145 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2146 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2149 static void service_kill_control_processes(Service *s) {
2152 if (!UNIT(s)->cgroup_path)
2155 p = strappenda(UNIT(s)->cgroup_path, "/control");
2156 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
2159 static void service_enter_start(Service *s) {
2166 assert(s->exec_command[SERVICE_EXEC_START]);
2167 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2169 service_unwatch_control_pid(s);
2170 service_unwatch_main_pid(s);
2172 /* We want to ensure that nobody leaks processes from
2173 * START_PRE here, so let's go on a killing spree, People
2174 * should not spawn long running processes from START_PRE. */
2175 service_kill_control_processes(s);
2177 if (s->type == SERVICE_FORKING) {
2178 s->control_command_id = SERVICE_EXEC_START;
2179 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2181 s->main_command = NULL;
2183 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2184 s->control_command = NULL;
2186 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2189 r = service_spawn(s,
2191 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2192 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2197 s->notify_access != NOTIFY_NONE,
2203 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2204 /* For simple services we immediately start
2205 * the START_POST binaries. */
2207 service_set_main_pid(s, pid);
2208 service_enter_start_post(s);
2210 } else if (s->type == SERVICE_FORKING) {
2212 /* For forking services we wait until the start
2213 * process exited. */
2215 s->control_pid = pid;
2216 service_set_state(s, SERVICE_START);
2218 } else if (s->type == SERVICE_ONESHOT ||
2219 s->type == SERVICE_DBUS ||
2220 s->type == SERVICE_NOTIFY) {
2222 /* For oneshot services we wait until the start
2223 * process exited, too, but it is our main process. */
2225 /* For D-Bus services we know the main pid right away,
2226 * but wait for the bus name to appear on the
2227 * bus. Notify services are similar. */
2229 service_set_main_pid(s, pid);
2230 service_set_state(s, SERVICE_START);
2232 assert_not_reached("Unknown service type");
2237 log_warning_unit(UNIT(s)->id,
2238 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2239 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2242 static void service_enter_start_pre(Service *s) {
2247 service_unwatch_control_pid(s);
2249 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2250 if (s->control_command) {
2251 /* Before we start anything, let's clear up what might
2252 * be left from previous runs. */
2253 service_kill_control_processes(s);
2255 s->control_command_id = SERVICE_EXEC_START_PRE;
2257 r = service_spawn(s,
2261 !s->permissions_start_only,
2262 !s->root_directory_start_only,
2270 service_set_state(s, SERVICE_START_PRE);
2272 service_enter_start(s);
2277 log_warning_unit(UNIT(s)->id,
2278 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2279 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2282 static void service_enter_restart(Service *s) {
2287 dbus_error_init(&error);
2289 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2290 /* Don't restart things if we are going down anyway */
2291 log_info_unit(UNIT(s)->id,
2292 "Stop job pending for unit, delaying automatic restart.");
2294 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2301 /* Any units that are bound to this service must also be
2302 * restarted. We use JOB_RESTART (instead of the more obvious
2303 * JOB_START) here so that those dependency jobs will be added
2305 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2309 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2310 * it will be canceled as part of the service_stop() call that
2311 * is executed as part of JOB_RESTART. */
2313 log_debug_unit(UNIT(s)->id,
2314 "%s scheduled restart job.", UNIT(s)->id);
2318 log_warning_unit(UNIT(s)->id,
2319 "%s failed to schedule restart job: %s",
2320 UNIT(s)->id, bus_error(&error, -r));
2321 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2323 dbus_error_free(&error);
2326 static void service_enter_reload(Service *s) {
2331 service_unwatch_control_pid(s);
2333 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2334 if (s->control_command) {
2335 s->control_command_id = SERVICE_EXEC_RELOAD;
2337 r = service_spawn(s,
2341 !s->permissions_start_only,
2342 !s->root_directory_start_only,
2350 service_set_state(s, SERVICE_RELOAD);
2352 service_enter_running(s, SERVICE_SUCCESS);
2357 log_warning_unit(UNIT(s)->id,
2358 "%s failed to run 'reload' task: %s",
2359 UNIT(s)->id, strerror(-r));
2360 s->reload_result = SERVICE_FAILURE_RESOURCES;
2361 service_enter_running(s, SERVICE_SUCCESS);
2364 static void service_run_next_control(Service *s) {
2368 assert(s->control_command);
2369 assert(s->control_command->command_next);
2371 assert(s->control_command_id != SERVICE_EXEC_START);
2373 s->control_command = s->control_command->command_next;
2374 service_unwatch_control_pid(s);
2376 r = service_spawn(s,
2380 !s->permissions_start_only,
2381 !s->root_directory_start_only,
2382 s->control_command_id == SERVICE_EXEC_START_PRE ||
2383 s->control_command_id == SERVICE_EXEC_STOP_POST,
2393 log_warning_unit(UNIT(s)->id,
2394 "%s failed to run next control task: %s",
2395 UNIT(s)->id, strerror(-r));
2397 if (s->state == SERVICE_START_PRE)
2398 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2399 else if (s->state == SERVICE_STOP)
2400 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2401 else if (s->state == SERVICE_STOP_POST)
2402 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2403 else if (s->state == SERVICE_RELOAD) {
2404 s->reload_result = SERVICE_FAILURE_RESOURCES;
2405 service_enter_running(s, SERVICE_SUCCESS);
2407 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2410 static void service_run_next_main(Service *s) {
2415 assert(s->main_command);
2416 assert(s->main_command->command_next);
2417 assert(s->type == SERVICE_ONESHOT);
2419 s->main_command = s->main_command->command_next;
2420 service_unwatch_main_pid(s);
2422 r = service_spawn(s,
2429 s->notify_access != NOTIFY_NONE,
2435 service_set_main_pid(s, pid);
2440 log_warning_unit(UNIT(s)->id,
2441 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2442 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2445 static int service_start_limit_test(Service *s) {
2448 if (ratelimit_test(&s->start_limit))
2451 switch (s->start_limit_action) {
2453 case SERVICE_START_LIMIT_NONE:
2454 log_warning_unit(UNIT(s)->id,
2455 "%s start request repeated too quickly, refusing to start.",
2459 case SERVICE_START_LIMIT_REBOOT: {
2463 dbus_error_init(&error);
2465 log_warning_unit(UNIT(s)->id,
2466 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2468 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2469 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2470 true, &error, NULL);
2472 log_error_unit(UNIT(s)->id,
2473 "Failed to reboot: %s.", bus_error(&error, r));
2474 dbus_error_free(&error);
2480 case SERVICE_START_LIMIT_REBOOT_FORCE:
2481 log_warning_unit(UNIT(s)->id,
2482 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2483 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2486 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2487 log_warning_unit(UNIT(s)->id,
2488 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2490 reboot(RB_AUTOBOOT);
2494 log_error_unit(UNIT(s)->id,
2495 "start limit action=%i", s->start_limit_action);
2496 assert_not_reached("Unknown StartLimitAction.");
2502 static int service_start(Unit *u) {
2503 Service *s = SERVICE(u);
2508 /* We cannot fulfill this request right now, try again later
2510 if (s->state == SERVICE_STOP ||
2511 s->state == SERVICE_STOP_SIGTERM ||
2512 s->state == SERVICE_STOP_SIGKILL ||
2513 s->state == SERVICE_STOP_POST ||
2514 s->state == SERVICE_FINAL_SIGTERM ||
2515 s->state == SERVICE_FINAL_SIGKILL)
2518 /* Already on it! */
2519 if (s->state == SERVICE_START_PRE ||
2520 s->state == SERVICE_START ||
2521 s->state == SERVICE_START_POST)
2524 /* A service that will be restarted must be stopped first to
2525 * trigger BindsTo and/or OnFailure dependencies. If a user
2526 * does not want to wait for the holdoff time to elapse, the
2527 * service should be manually restarted, not started. We
2528 * simply return EAGAIN here, so that any start jobs stay
2529 * queued, and assume that the auto restart timer will
2530 * eventually trigger the restart. */
2531 if (s->state == SERVICE_AUTO_RESTART)
2534 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2536 /* Make sure we don't enter a busy loop of some kind. */
2537 r = service_start_limit_test(s);
2539 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2543 s->result = SERVICE_SUCCESS;
2544 s->reload_result = SERVICE_SUCCESS;
2545 s->main_pid_known = false;
2546 s->main_pid_alien = false;
2547 s->forbid_restart = false;
2549 service_enter_start_pre(s);
2553 static int service_stop(Unit *u) {
2554 Service *s = SERVICE(u);
2558 /* Don't create restart jobs from here. */
2559 s->forbid_restart = true;
2562 if (s->state == SERVICE_STOP ||
2563 s->state == SERVICE_STOP_SIGTERM ||
2564 s->state == SERVICE_STOP_SIGKILL ||
2565 s->state == SERVICE_STOP_POST ||
2566 s->state == SERVICE_FINAL_SIGTERM ||
2567 s->state == SERVICE_FINAL_SIGKILL)
2570 /* A restart will be scheduled or is in progress. */
2571 if (s->state == SERVICE_AUTO_RESTART) {
2572 service_set_state(s, SERVICE_DEAD);
2576 /* If there's already something running we go directly into
2578 if (s->state == SERVICE_START_PRE ||
2579 s->state == SERVICE_START ||
2580 s->state == SERVICE_START_POST ||
2581 s->state == SERVICE_RELOAD) {
2582 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2586 assert(s->state == SERVICE_RUNNING ||
2587 s->state == SERVICE_EXITED);
2589 service_enter_stop(s, SERVICE_SUCCESS);
2593 static int service_reload(Unit *u) {
2594 Service *s = SERVICE(u);
2598 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2600 service_enter_reload(s);
2604 _pure_ static bool service_can_reload(Unit *u) {
2605 Service *s = SERVICE(u);
2609 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2612 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2613 Service *s = SERVICE(u);
2619 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2620 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2621 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2623 if (s->control_pid > 0)
2624 unit_serialize_item_format(u, f, "control-pid", "%lu",
2625 (unsigned long) s->control_pid);
2627 if (s->main_pid_known && s->main_pid > 0)
2628 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2630 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2633 unit_serialize_item(u, f, "status-text", s->status_text);
2635 /* FIXME: There's a minor uncleanliness here: if there are
2636 * multiple commands attached here, we will start from the
2637 * first one again */
2638 if (s->control_command_id >= 0)
2639 unit_serialize_item(u, f, "control-command",
2640 service_exec_command_to_string(s->control_command_id));
2642 if (s->socket_fd >= 0) {
2645 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2648 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2651 if (s->main_exec_status.pid > 0) {
2652 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2653 (unsigned long) s->main_exec_status.pid);
2654 dual_timestamp_serialize(f, "main-exec-status-start",
2655 &s->main_exec_status.start_timestamp);
2656 dual_timestamp_serialize(f, "main-exec-status-exit",
2657 &s->main_exec_status.exit_timestamp);
2659 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2660 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2661 s->main_exec_status.code);
2662 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2663 s->main_exec_status.status);
2666 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2667 dual_timestamp_serialize(f, "watchdog-timestamp",
2668 &s->watchdog_timestamp);
2670 if (s->exec_context.tmp_dir)
2671 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2673 if (s->exec_context.var_tmp_dir)
2674 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
2679 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2680 Service *s = SERVICE(u);
2687 if (streq(key, "state")) {
2690 state = service_state_from_string(value);
2692 log_debug_unit(u->id, "Failed to parse state value %s", value);
2694 s->deserialized_state = state;
2695 } else if (streq(key, "result")) {
2698 f = service_result_from_string(value);
2700 log_debug_unit(u->id, "Failed to parse result value %s", value);
2701 else if (f != SERVICE_SUCCESS)
2704 } else if (streq(key, "reload-result")) {
2707 f = service_result_from_string(value);
2709 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2710 else if (f != SERVICE_SUCCESS)
2711 s->reload_result = f;
2713 } else if (streq(key, "control-pid")) {
2716 if (parse_pid(value, &pid) < 0)
2717 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2719 s->control_pid = pid;
2720 } else if (streq(key, "main-pid")) {
2723 if (parse_pid(value, &pid) < 0)
2724 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2726 service_set_main_pid(s, (pid_t) pid);
2727 } else if (streq(key, "main-pid-known")) {
2730 b = parse_boolean(value);
2732 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2734 s->main_pid_known = b;
2735 } else if (streq(key, "status-text")) {
2742 free(s->status_text);
2746 } else if (streq(key, "control-command")) {
2747 ServiceExecCommand id;
2749 id = service_exec_command_from_string(value);
2751 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2753 s->control_command_id = id;
2754 s->control_command = s->exec_command[id];
2756 } else if (streq(key, "socket-fd")) {
2759 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2760 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2763 if (s->socket_fd >= 0)
2764 close_nointr_nofail(s->socket_fd);
2765 s->socket_fd = fdset_remove(fds, fd);
2767 } else if (streq(key, "main-exec-status-pid")) {
2770 if (parse_pid(value, &pid) < 0)
2771 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2773 s->main_exec_status.pid = pid;
2774 } else if (streq(key, "main-exec-status-code")) {
2777 if (safe_atoi(value, &i) < 0)
2778 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2780 s->main_exec_status.code = i;
2781 } else if (streq(key, "main-exec-status-status")) {
2784 if (safe_atoi(value, &i) < 0)
2785 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2787 s->main_exec_status.status = i;
2788 } else if (streq(key, "main-exec-status-start"))
2789 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2790 else if (streq(key, "main-exec-status-exit"))
2791 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2792 else if (streq(key, "watchdog-timestamp"))
2793 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2794 else if (streq(key, "tmp-dir")) {
2801 s->exec_context.tmp_dir = t;
2802 } else if (streq(key, "var-tmp-dir")) {
2809 s->exec_context.var_tmp_dir = t;
2811 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2816 _pure_ static UnitActiveState service_active_state(Unit *u) {
2817 const UnitActiveState *table;
2821 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2823 return table[SERVICE(u)->state];
2826 static const char *service_sub_state_to_string(Unit *u) {
2829 return service_state_to_string(SERVICE(u)->state);
2832 static bool service_check_gc(Unit *u) {
2833 Service *s = SERVICE(u);
2837 /* Never clean up services that still have a process around,
2838 * even if the service is formally dead. */
2839 if (cgroup_good(s) > 0 ||
2840 main_pid_good(s) > 0 ||
2841 control_pid_good(s) > 0)
2844 #ifdef HAVE_SYSV_COMPAT
2852 _pure_ static bool service_check_snapshot(Unit *u) {
2853 Service *s = SERVICE(u);
2857 return !s->got_socket_fd;
2860 static int service_retry_pid_file(Service *s) {
2863 assert(s->pid_file);
2864 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2866 r = service_load_pid_file(s, false);
2870 service_unwatch_pid_file(s);
2872 service_enter_running(s, SERVICE_SUCCESS);
2876 static int service_watch_pid_file(Service *s) {
2879 log_debug_unit(UNIT(s)->id,
2880 "Setting watch for %s's PID file %s",
2881 UNIT(s)->id, s->pid_file_pathspec->path);
2882 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2886 /* the pidfile might have appeared just before we set the watch */
2887 log_debug_unit(UNIT(s)->id,
2888 "Trying to read %s's PID file %s in case it changed",
2889 UNIT(s)->id, s->pid_file_pathspec->path);
2890 service_retry_pid_file(s);
2894 log_error_unit(UNIT(s)->id,
2895 "Failed to set a watch for %s's PID file %s: %s",
2896 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2897 service_unwatch_pid_file(s);
2901 static int service_demand_pid_file(Service *s) {
2904 assert(s->pid_file);
2905 assert(!s->pid_file_pathspec);
2907 ps = new0(PathSpec, 1);
2911 ps->path = strdup(s->pid_file);
2917 path_kill_slashes(ps->path);
2919 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2920 * keep their PID file open all the time. */
2921 ps->type = PATH_MODIFIED;
2922 ps->inotify_fd = -1;
2924 s->pid_file_pathspec = ps;
2926 return service_watch_pid_file(s);
2929 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2930 Service *s = SERVICE(u);
2934 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2935 assert(s->pid_file_pathspec);
2936 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2938 log_debug_unit(u->id, "inotify event for %s", u->id);
2940 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2943 if (service_retry_pid_file(s) == 0)
2946 if (service_watch_pid_file(s) < 0)
2951 service_unwatch_pid_file(s);
2952 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2955 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2956 Service *s = SERVICE(u);
2962 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2963 is_clean_exit_lsb(code, status, &s->success_status))
2964 f = SERVICE_SUCCESS;
2965 else if (code == CLD_EXITED)
2966 f = SERVICE_FAILURE_EXIT_CODE;
2967 else if (code == CLD_KILLED)
2968 f = SERVICE_FAILURE_SIGNAL;
2969 else if (code == CLD_DUMPED)
2970 f = SERVICE_FAILURE_CORE_DUMP;
2972 assert_not_reached("Unknown code");
2974 if (s->main_pid == pid) {
2975 /* Forking services may occasionally move to a new PID.
2976 * As long as they update the PID file before exiting the old
2977 * PID, they're fine. */
2978 if (service_load_pid_file(s, false) == 0)
2982 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2984 if (s->main_command) {
2985 /* If this is not a forking service than the
2986 * main process got started and hence we copy
2987 * the exit status so that it is recorded both
2988 * as main and as control process exit
2991 s->main_command->exec_status = s->main_exec_status;
2993 if (s->main_command->ignore)
2994 f = SERVICE_SUCCESS;
2995 } else if (s->exec_command[SERVICE_EXEC_START]) {
2997 /* If this is a forked process, then we should
2998 * ignore the return value if this was
2999 * configured for the starter process */
3001 if (s->exec_command[SERVICE_EXEC_START]->ignore)
3002 f = SERVICE_SUCCESS;
3005 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
3007 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
3008 u->id, sigchld_code_to_string(code), status,
3009 strna(code == CLD_EXITED
3010 ? exit_status_to_string(status, EXIT_STATUS_FULL)
3011 : signal_to_string(status)),
3012 "EXIT_CODE=%s", sigchld_code_to_string(code),
3013 "EXIT_STATUS=%i", status,
3016 if (f != SERVICE_SUCCESS)
3019 if (s->main_command &&
3020 s->main_command->command_next &&
3021 f == SERVICE_SUCCESS) {
3023 /* There is another command to *
3024 * execute, so let's do that. */
3026 log_debug_unit(u->id,
3027 "%s running next main command for state %s",
3028 u->id, service_state_to_string(s->state));
3029 service_run_next_main(s);
3033 /* The service exited, so the service is officially
3035 s->main_command = NULL;
3039 case SERVICE_START_POST:
3040 case SERVICE_RELOAD:
3042 /* Need to wait until the operation is
3047 if (s->type == SERVICE_ONESHOT) {
3048 /* This was our main goal, so let's go on */
3049 if (f == SERVICE_SUCCESS)
3050 service_enter_start_post(s);
3052 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3058 case SERVICE_RUNNING:
3059 service_enter_running(s, f);
3062 case SERVICE_STOP_SIGTERM:
3063 case SERVICE_STOP_SIGKILL:
3065 if (!control_pid_good(s))
3066 service_enter_stop_post(s, f);
3068 /* If there is still a control process, wait for that first */
3072 assert_not_reached("Uh, main process died at wrong time.");
3076 } else if (s->control_pid == pid) {
3079 if (s->control_command) {
3080 exec_status_exit(&s->control_command->exec_status,
3081 &s->exec_context, pid, code, status);
3083 if (s->control_command->ignore)
3084 f = SERVICE_SUCCESS;
3087 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3088 "%s: control process exited, code=%s status=%i",
3089 u->id, sigchld_code_to_string(code), status);
3091 if (f != SERVICE_SUCCESS)
3094 /* Immediately get rid of the cgroup, so that the
3095 * kernel doesn't delay the cgroup empty messages for
3096 * the service cgroup any longer than necessary */
3097 service_kill_control_processes(s);
3099 if (s->control_command &&
3100 s->control_command->command_next &&
3101 f == SERVICE_SUCCESS) {
3103 /* There is another command to *
3104 * execute, so let's do that. */
3106 log_debug_unit(u->id,
3107 "%s running next control command for state %s",
3108 u->id, service_state_to_string(s->state));
3109 service_run_next_control(s);
3112 /* No further commands for this step, so let's
3113 * figure out what to do next */
3115 s->control_command = NULL;
3116 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3118 log_debug_unit(u->id,
3119 "%s got final SIGCHLD for state %s",
3120 u->id, service_state_to_string(s->state));
3124 case SERVICE_START_PRE:
3125 if (f == SERVICE_SUCCESS)
3126 service_enter_start(s);
3128 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3132 if (s->type != SERVICE_FORKING)
3133 /* Maybe spurious event due to a reload that changed the type? */
3136 if (f != SERVICE_SUCCESS) {
3137 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3142 bool has_start_post;
3145 /* Let's try to load the pid file here if we can.
3146 * The PID file might actually be created by a START_POST
3147 * script. In that case don't worry if the loading fails. */
3149 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3150 r = service_load_pid_file(s, !has_start_post);
3151 if (!has_start_post && r < 0) {
3152 r = service_demand_pid_file(s);
3153 if (r < 0 || !cgroup_good(s))
3154 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3158 service_search_main_pid(s);
3160 service_enter_start_post(s);
3163 case SERVICE_START_POST:
3164 if (f != SERVICE_SUCCESS) {
3165 service_enter_stop(s, f);
3172 r = service_load_pid_file(s, true);
3174 r = service_demand_pid_file(s);
3175 if (r < 0 || !cgroup_good(s))
3176 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3180 service_search_main_pid(s);
3182 service_enter_running(s, SERVICE_SUCCESS);
3185 case SERVICE_RELOAD:
3186 if (f == SERVICE_SUCCESS) {
3187 service_load_pid_file(s, true);
3188 service_search_main_pid(s);
3191 s->reload_result = f;
3192 service_enter_running(s, SERVICE_SUCCESS);
3196 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3199 case SERVICE_STOP_SIGTERM:
3200 case SERVICE_STOP_SIGKILL:
3201 if (main_pid_good(s) <= 0)
3202 service_enter_stop_post(s, f);
3204 /* If there is still a service
3205 * process around, wait until
3206 * that one quit, too */
3209 case SERVICE_STOP_POST:
3210 case SERVICE_FINAL_SIGTERM:
3211 case SERVICE_FINAL_SIGKILL:
3212 service_enter_dead(s, f, true);
3216 assert_not_reached("Uh, control process died at wrong time.");
3221 /* Notify clients about changed exit status */
3222 unit_add_to_dbus_queue(u);
3225 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3226 Service *s = SERVICE(u);
3229 assert(elapsed == 1);
3231 if (w == &s->watchdog_watch) {
3232 service_handle_watchdog(s);
3236 assert(w == &s->timer_watch);
3240 case SERVICE_START_PRE:
3242 log_warning_unit(u->id,
3243 "%s operation timed out. Terminating.", u->id);
3244 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3247 case SERVICE_START_POST:
3248 log_warning_unit(u->id,
3249 "%s operation timed out. Stopping.", u->id);
3250 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3253 case SERVICE_RELOAD:
3254 log_warning_unit(u->id,
3255 "%s operation timed out. Stopping.", u->id);
3256 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3257 service_enter_running(s, SERVICE_SUCCESS);
3261 log_warning_unit(u->id,
3262 "%s stopping timed out. Terminating.", u->id);
3263 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3266 case SERVICE_STOP_SIGTERM:
3267 if (s->kill_context.send_sigkill) {
3268 log_warning_unit(u->id,
3269 "%s stopping timed out. Killing.", u->id);
3270 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3272 log_warning_unit(u->id,
3273 "%s stopping timed out. Skipping SIGKILL.", u->id);
3274 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3279 case SERVICE_STOP_SIGKILL:
3280 /* Uh, we sent a SIGKILL and it is still not gone?
3281 * Must be something we cannot kill, so let's just be
3282 * weirded out and continue */
3284 log_warning_unit(u->id,
3285 "%s still around after SIGKILL. Ignoring.", u->id);
3286 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3289 case SERVICE_STOP_POST:
3290 log_warning_unit(u->id,
3291 "%s stopping timed out (2). Terminating.", u->id);
3292 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3295 case SERVICE_FINAL_SIGTERM:
3296 if (s->kill_context.send_sigkill) {
3297 log_warning_unit(u->id,
3298 "%s stopping timed out (2). Killing.", u->id);
3299 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3301 log_warning_unit(u->id,
3302 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3304 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3309 case SERVICE_FINAL_SIGKILL:
3310 log_warning_unit(u->id,
3311 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3312 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3315 case SERVICE_AUTO_RESTART:
3316 log_info_unit(u->id,
3317 "%s holdoff time over, scheduling restart.", u->id);
3318 service_enter_restart(s);
3322 assert_not_reached("Timeout at wrong time.");
3326 static void service_notify_cgroup_empty_event(Unit *u) {
3327 Service *s = SERVICE(u);
3331 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
3335 /* Waiting for SIGCHLD is usually more interesting,
3336 * because it includes return codes/signals. Which is
3337 * why we ignore the cgroup events for most cases,
3338 * except when we don't know pid which to expect the
3342 case SERVICE_START_POST:
3343 /* If we were hoping for the daemon to write its PID file,
3344 * we can give up now. */
3345 if (s->pid_file_pathspec) {
3346 log_warning_unit(u->id,
3347 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3348 service_unwatch_pid_file(s);
3349 if (s->state == SERVICE_START)
3350 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3352 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3356 case SERVICE_RUNNING:
3357 /* service_enter_running() will figure out what to do */
3358 service_enter_running(s, SERVICE_SUCCESS);
3361 case SERVICE_STOP_SIGTERM:
3362 case SERVICE_STOP_SIGKILL:
3364 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3365 service_enter_stop_post(s, SERVICE_SUCCESS);
3369 case SERVICE_FINAL_SIGTERM:
3370 case SERVICE_FINAL_SIGKILL:
3371 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3372 service_enter_dead(s, SERVICE_SUCCESS, true);
3381 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3382 Service *s = SERVICE(u);
3387 if (s->notify_access == NOTIFY_NONE) {
3388 log_warning_unit(u->id,
3389 "%s: Got notification message from PID %lu, but reception is disabled.",
3390 u->id, (unsigned long) pid);
3394 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3395 log_warning_unit(u->id,
3396 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3397 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3401 log_debug_unit(u->id,
3402 "%s: Got message", u->id);
3404 /* Interpret MAINPID= */
3405 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3406 (s->state == SERVICE_START ||
3407 s->state == SERVICE_START_POST ||
3408 s->state == SERVICE_RUNNING ||
3409 s->state == SERVICE_RELOAD)) {
3411 if (parse_pid(e + 8, &pid) < 0)
3412 log_warning_unit(u->id,
3413 "Failed to parse notification message %s", e);
3415 log_debug_unit(u->id,
3416 "%s: got %s", u->id, e);
3417 service_set_main_pid(s, pid);
3421 /* Interpret READY= */
3422 if (s->type == SERVICE_NOTIFY &&
3423 s->state == SERVICE_START &&
3424 strv_find(tags, "READY=1")) {
3425 log_debug_unit(u->id,
3426 "%s: got READY=1", u->id);
3428 service_enter_start_post(s);
3431 /* Interpret STATUS= */
3432 e = strv_find_prefix(tags, "STATUS=");
3438 if (!utf8_is_valid(e+7)) {
3439 log_warning_unit(u->id,
3440 "Status message in notification is not UTF-8 clean.");
3446 log_error_unit(u->id,
3447 "Failed to allocate string.");
3451 log_debug_unit(u->id,
3452 "%s: got %s", u->id, e);
3454 free(s->status_text);
3457 free(s->status_text);
3458 s->status_text = NULL;
3462 if (strv_find(tags, "WATCHDOG=1")) {
3463 log_debug_unit(u->id,
3464 "%s: got WATCHDOG=1", u->id);
3465 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3466 service_reset_watchdog(s);
3469 /* Notify clients about changed status or main pid */
3470 unit_add_to_dbus_queue(u);
3473 #ifdef HAVE_SYSV_COMPAT
3475 static int service_enumerate(Manager *m) {
3478 _cleanup_closedir_ DIR *d = NULL;
3479 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3480 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3481 _cleanup_set_free_ Set *shutdown_services = NULL;
3488 if (m->running_as != SYSTEMD_SYSTEM)
3491 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3492 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3496 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3507 if (errno != ENOENT)
3508 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3513 while ((de = readdir(d))) {
3516 if (ignore_file(de->d_name))
3519 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3522 if (strlen(de->d_name) < 4)
3525 a = undecchar(de->d_name[1]);
3526 b = undecchar(de->d_name[2]);
3532 fpath = strjoin(path, "/", de->d_name, NULL);
3538 if (access(fpath, X_OK) < 0) {
3540 if (errno != ENOENT)
3541 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3547 name = sysv_translate_name(de->d_name + 3);
3553 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3555 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3559 if (de->d_name[0] == 'S') {
3561 if (rcnd_table[i].type == RUNLEVEL_UP) {
3562 SERVICE(service)->sysv_start_priority_from_rcnd =
3563 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3565 SERVICE(service)->sysv_enabled = true;
3568 r = set_ensure_allocated(&runlevel_services[i],
3569 trivial_hash_func, trivial_compare_func);
3573 r = set_put(runlevel_services[i], service);
3577 } else if (de->d_name[0] == 'K' &&
3578 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3580 r = set_ensure_allocated(&shutdown_services,
3581 trivial_hash_func, trivial_compare_func);
3585 r = set_put(shutdown_services, service);
3592 /* Now we loaded all stubs and are aware of the lowest
3593 start-up priority for all services, not let's actually load
3594 the services, this will also tell us which services are
3595 actually native now */
3596 manager_dispatch_load_queue(m);
3598 /* If this is a native service, rely on native ways to pull in
3599 * a service, don't pull it in via sysv rcN.d links. */
3600 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3601 SET_FOREACH(service, runlevel_services[i], j) {
3602 service = unit_follow_merge(service);
3604 if (service->fragment_path)
3607 r = unit_add_two_dependencies_by_name_inverse(
3608 service, UNIT_AFTER, UNIT_WANTS,
3609 rcnd_table[i].target, NULL, true);
3614 /* We honour K links only for halt/reboot. For the normal
3615 * runlevels we assume the stop jobs will be implicitly added
3616 * by the core logic. Also, we don't really distinguish here
3617 * between the runlevels 0 and 6 and just add them to the
3618 * special shutdown target. */
3619 SET_FOREACH(service, shutdown_services, j) {
3620 service = unit_follow_merge(service);
3622 if (service->fragment_path)
3625 r = unit_add_two_dependencies_by_name(
3626 service, UNIT_BEFORE, UNIT_CONFLICTS,
3627 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3636 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3637 set_free(runlevel_services[i]);
3643 static void service_bus_name_owner_change(
3646 const char *old_owner,
3647 const char *new_owner) {
3649 Service *s = SERVICE(u);
3654 assert(streq(s->bus_name, name));
3655 assert(old_owner || new_owner);
3657 if (old_owner && new_owner)
3658 log_debug_unit(u->id,
3659 "%s's D-Bus name %s changed owner from %s to %s",
3660 u->id, name, old_owner, new_owner);
3662 log_debug_unit(u->id,
3663 "%s's D-Bus name %s no longer registered by %s",
3664 u->id, name, old_owner);
3666 log_debug_unit(u->id,
3667 "%s's D-Bus name %s now registered by %s",
3668 u->id, name, new_owner);
3670 s->bus_name_good = !!new_owner;
3672 if (s->type == SERVICE_DBUS) {
3674 /* service_enter_running() will figure out what to
3676 if (s->state == SERVICE_RUNNING)
3677 service_enter_running(s, SERVICE_SUCCESS);
3678 else if (s->state == SERVICE_START && new_owner)
3679 service_enter_start_post(s);
3681 } else if (new_owner &&
3683 (s->state == SERVICE_START ||
3684 s->state == SERVICE_START_POST ||
3685 s->state == SERVICE_RUNNING ||
3686 s->state == SERVICE_RELOAD)) {
3688 /* Try to acquire PID from bus service */
3689 log_debug_unit(u->id,
3690 "Trying to acquire PID from D-Bus name...");
3692 bus_query_pid(u->manager, name);
3696 static void service_bus_query_pid_done(
3701 Service *s = SERVICE(u);
3706 log_debug_unit(u->id,
3707 "%s's D-Bus name %s is now owned by process %u",
3708 u->id, name, (unsigned) pid);
3710 if (s->main_pid <= 0 &&
3711 (s->state == SERVICE_START ||
3712 s->state == SERVICE_START_POST ||
3713 s->state == SERVICE_RUNNING ||
3714 s->state == SERVICE_RELOAD))
3715 service_set_main_pid(s, pid);
3718 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3723 /* This is called by the socket code when instantiating a new
3724 * service for a stream socket and the socket needs to be
3727 if (UNIT(s)->load_state != UNIT_LOADED)
3730 if (s->socket_fd >= 0)
3733 if (s->state != SERVICE_DEAD)
3737 s->got_socket_fd = true;
3739 unit_ref_set(&s->accept_socket, UNIT(sock));
3741 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3744 static void service_reset_failed(Unit *u) {
3745 Service *s = SERVICE(u);
3749 if (s->state == SERVICE_FAILED)
3750 service_set_state(s, SERVICE_DEAD);
3752 s->result = SERVICE_SUCCESS;
3753 s->reload_result = SERVICE_SUCCESS;
3755 RATELIMIT_RESET(s->start_limit);
3758 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3759 Service *s = SERVICE(u);
3761 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3764 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3765 [SERVICE_DEAD] = "dead",
3766 [SERVICE_START_PRE] = "start-pre",
3767 [SERVICE_START] = "start",
3768 [SERVICE_START_POST] = "start-post",
3769 [SERVICE_RUNNING] = "running",
3770 [SERVICE_EXITED] = "exited",
3771 [SERVICE_RELOAD] = "reload",
3772 [SERVICE_STOP] = "stop",
3773 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3774 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3775 [SERVICE_STOP_POST] = "stop-post",
3776 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3777 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3778 [SERVICE_FAILED] = "failed",
3779 [SERVICE_AUTO_RESTART] = "auto-restart",
3782 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3784 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3785 [SERVICE_RESTART_NO] = "no",
3786 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3787 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3788 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3789 [SERVICE_RESTART_ALWAYS] = "always"
3792 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3794 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3795 [SERVICE_SIMPLE] = "simple",
3796 [SERVICE_FORKING] = "forking",
3797 [SERVICE_ONESHOT] = "oneshot",
3798 [SERVICE_DBUS] = "dbus",
3799 [SERVICE_NOTIFY] = "notify",
3800 [SERVICE_IDLE] = "idle"
3803 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3805 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3806 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3807 [SERVICE_EXEC_START] = "ExecStart",
3808 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3809 [SERVICE_EXEC_RELOAD] = "ExecReload",
3810 [SERVICE_EXEC_STOP] = "ExecStop",
3811 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3814 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3816 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3817 [NOTIFY_NONE] = "none",
3818 [NOTIFY_MAIN] = "main",
3819 [NOTIFY_ALL] = "all"
3822 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3824 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3825 [SERVICE_SUCCESS] = "success",
3826 [SERVICE_FAILURE_RESOURCES] = "resources",
3827 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3828 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3829 [SERVICE_FAILURE_SIGNAL] = "signal",
3830 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3831 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3832 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3835 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3837 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3838 [SERVICE_START_LIMIT_NONE] = "none",
3839 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3840 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3841 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3843 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3845 const UnitVTable service_vtable = {
3846 .object_size = sizeof(Service),
3853 .private_section = "Service",
3854 .exec_context_offset = offsetof(Service, exec_context),
3855 .cgroup_context_offset = offsetof(Service, cgroup_context),
3857 .init = service_init,
3858 .done = service_done,
3859 .load = service_load,
3861 .coldplug = service_coldplug,
3863 .dump = service_dump,
3865 .start = service_start,
3866 .stop = service_stop,
3867 .reload = service_reload,
3869 .can_reload = service_can_reload,
3871 .kill = service_kill,
3873 .serialize = service_serialize,
3874 .deserialize_item = service_deserialize_item,
3876 .active_state = service_active_state,
3877 .sub_state_to_string = service_sub_state_to_string,
3879 .check_gc = service_check_gc,
3880 .check_snapshot = service_check_snapshot,
3882 .sigchld_event = service_sigchld_event,
3883 .timer_event = service_timer_event,
3884 .fd_event = service_fd_event,
3886 .reset_failed = service_reset_failed,
3888 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3889 .notify_message = service_notify_message,
3891 .bus_name_owner_change = service_bus_name_owner_change,
3892 .bus_query_pid_done = service_bus_query_pid_done,
3894 .bus_interface = "org.freedesktop.systemd1.Service",
3895 .bus_message_handler = bus_service_message_handler,
3896 .bus_invalidating_properties = bus_service_invalidating_properties,
3897 .bus_set_property = bus_service_set_property,
3898 .bus_commit_properties = bus_service_commit_properties,
3900 .can_transient = true,
3902 #ifdef HAVE_SYSV_COMPAT
3903 .enumerate = service_enumerate,
3905 .status_message_formats = {
3906 .starting_stopping = {
3907 [0] = "Starting %s...",
3908 [1] = "Stopping %s...",
3910 .finished_start_job = {
3911 [JOB_DONE] = "Started %s.",
3912 [JOB_FAILED] = "Failed to start %s.",
3913 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3914 [JOB_TIMEOUT] = "Timed out starting %s.",
3916 .finished_stop_job = {
3917 [JOB_DONE] = "Stopped %s.",
3918 [JOB_FAILED] = "Stopped (with error) %s.",
3919 [JOB_TIMEOUT] = "Timed out stopping %s.",