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_set_state(Service *s, ServiceState state) {
1493 ServiceState old_state;
1494 const UnitActiveState *table;
1497 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1499 old_state = s->state;
1502 service_unwatch_pid_file(s);
1504 if (state != SERVICE_START_PRE &&
1505 state != SERVICE_START &&
1506 state != SERVICE_START_POST &&
1507 state != SERVICE_RELOAD &&
1508 state != SERVICE_STOP &&
1509 state != SERVICE_STOP_SIGTERM &&
1510 state != SERVICE_STOP_SIGKILL &&
1511 state != SERVICE_STOP_POST &&
1512 state != SERVICE_FINAL_SIGTERM &&
1513 state != SERVICE_FINAL_SIGKILL &&
1514 state != SERVICE_AUTO_RESTART)
1515 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1517 if (state != SERVICE_START &&
1518 state != SERVICE_START_POST &&
1519 state != SERVICE_RUNNING &&
1520 state != SERVICE_RELOAD &&
1521 state != SERVICE_STOP &&
1522 state != SERVICE_STOP_SIGTERM &&
1523 state != SERVICE_STOP_SIGKILL) {
1524 service_unwatch_main_pid(s);
1525 s->main_command = NULL;
1528 if (state != SERVICE_START_PRE &&
1529 state != SERVICE_START &&
1530 state != SERVICE_START_POST &&
1531 state != SERVICE_RELOAD &&
1532 state != SERVICE_STOP &&
1533 state != SERVICE_STOP_SIGTERM &&
1534 state != SERVICE_STOP_SIGKILL &&
1535 state != SERVICE_STOP_POST &&
1536 state != SERVICE_FINAL_SIGTERM &&
1537 state != SERVICE_FINAL_SIGKILL) {
1538 service_unwatch_control_pid(s);
1539 s->control_command = NULL;
1540 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1543 if (state != SERVICE_START_PRE &&
1544 state != SERVICE_START &&
1545 state != SERVICE_START_POST &&
1546 state != SERVICE_RUNNING &&
1547 state != SERVICE_RELOAD &&
1548 state != SERVICE_STOP &&
1549 state != SERVICE_STOP_SIGTERM &&
1550 state != SERVICE_STOP_SIGKILL &&
1551 state != SERVICE_STOP_POST &&
1552 state != SERVICE_FINAL_SIGTERM &&
1553 state != SERVICE_FINAL_SIGKILL &&
1554 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1555 service_close_socket_fd(s);
1556 service_connection_unref(s);
1559 if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
1560 service_stop_watchdog(s);
1562 /* For the inactive states unit_notify() will trim the cgroup,
1563 * but for exit we have to do that ourselves... */
1564 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1565 unit_destroy_cgroup(UNIT(s));
1567 if (old_state != state)
1568 log_debug_unit(UNIT(s)->id,
1569 "%s changed %s -> %s", UNIT(s)->id,
1570 service_state_to_string(old_state),
1571 service_state_to_string(state));
1573 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1574 s->reload_result = SERVICE_SUCCESS;
1577 static int service_coldplug(Unit *u) {
1578 Service *s = SERVICE(u);
1582 assert(s->state == SERVICE_DEAD);
1584 if (s->deserialized_state != s->state) {
1586 if (s->deserialized_state == SERVICE_START_PRE ||
1587 s->deserialized_state == SERVICE_START ||
1588 s->deserialized_state == SERVICE_START_POST ||
1589 s->deserialized_state == SERVICE_RELOAD ||
1590 s->deserialized_state == SERVICE_STOP ||
1591 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1592 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1593 s->deserialized_state == SERVICE_STOP_POST ||
1594 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1595 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1596 s->deserialized_state == SERVICE_AUTO_RESTART) {
1598 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1601 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1603 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
1609 if ((s->deserialized_state == SERVICE_START &&
1610 (s->type == SERVICE_FORKING ||
1611 s->type == SERVICE_DBUS ||
1612 s->type == SERVICE_ONESHOT ||
1613 s->type == SERVICE_NOTIFY)) ||
1614 s->deserialized_state == SERVICE_START_POST ||
1615 s->deserialized_state == SERVICE_RUNNING ||
1616 s->deserialized_state == SERVICE_RELOAD ||
1617 s->deserialized_state == SERVICE_STOP ||
1618 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1619 s->deserialized_state == SERVICE_STOP_SIGKILL)
1620 if (s->main_pid > 0) {
1621 r = unit_watch_pid(UNIT(s), s->main_pid);
1626 if (s->deserialized_state == SERVICE_START_PRE ||
1627 s->deserialized_state == SERVICE_START ||
1628 s->deserialized_state == SERVICE_START_POST ||
1629 s->deserialized_state == SERVICE_RELOAD ||
1630 s->deserialized_state == SERVICE_STOP ||
1631 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1632 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1633 s->deserialized_state == SERVICE_STOP_POST ||
1634 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1635 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1636 if (s->control_pid > 0) {
1637 r = unit_watch_pid(UNIT(s), s->control_pid);
1642 if (s->deserialized_state == SERVICE_START_POST ||
1643 s->deserialized_state == SERVICE_RUNNING)
1644 service_handle_watchdog(s);
1646 service_set_state(s, s->deserialized_state);
1651 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1655 unsigned rn_fds = 0;
1662 if (s->socket_fd >= 0)
1665 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1670 if (u->type != UNIT_SOCKET)
1675 r = socket_collect_fds(sock, &cfds, &cn_fds);
1688 t = new(int, rn_fds+cn_fds);
1695 memcpy(t, rfds, rn_fds * sizeof(int));
1696 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1701 rn_fds = rn_fds+cn_fds;
1716 static int service_spawn(
1721 bool apply_permissions,
1723 bool apply_tty_stdin,
1724 bool set_notify_socket,
1731 _cleanup_free_ int *fdsbuf = NULL;
1732 unsigned n_fds = 0, n_env = 0;
1733 _cleanup_strv_free_ char
1734 **argv = NULL, **final_env = NULL, **our_env = NULL;
1741 unit_realize_cgroup(UNIT(s));
1744 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1745 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1746 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1748 if (s->socket_fd >= 0) {
1749 fds = &s->socket_fd;
1752 r = service_collect_fds(s, &fdsbuf, &n_fds);
1760 if (timeout && s->timeout_start_usec) {
1761 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
1762 s->timeout_start_usec, &s->timer_watch);
1766 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1768 argv = unit_full_printf_strv(UNIT(s), c->argv);
1774 our_env = new0(char*, 5);
1780 if (set_notify_socket)
1781 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1786 if (s->main_pid > 0)
1787 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1792 if (s->watchdog_usec > 0)
1793 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1798 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1799 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1804 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1810 if (is_control && UNIT(s)->cgroup_path) {
1811 path = strappenda(UNIT(s)->cgroup_path, "/control");
1812 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1814 path = UNIT(s)->cgroup_path;
1824 UNIT(s)->manager->confirm_spawn,
1825 UNIT(s)->cgroup_mask,
1828 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1833 r = unit_watch_pid(UNIT(s), pid);
1835 /* FIXME: we need to do something here */
1844 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1849 static int main_pid_good(Service *s) {
1852 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1855 /* If we know the pid file, then lets just check if it is
1857 if (s->main_pid_known) {
1859 /* If it's an alien child let's check if it is still
1861 if (s->main_pid_alien && s->main_pid > 0)
1862 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1864 /* .. otherwise assume we'll get a SIGCHLD for it,
1865 * which we really should wait for to collect exit
1866 * status and code */
1867 return s->main_pid > 0;
1870 /* We don't know the pid */
1874 _pure_ static int control_pid_good(Service *s) {
1877 return s->control_pid > 0;
1880 static int cgroup_good(Service *s) {
1885 if (!UNIT(s)->cgroup_path)
1888 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1895 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1899 if (f != SERVICE_SUCCESS)
1902 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1904 if (allow_restart &&
1905 !s->forbid_restart &&
1906 (s->restart == SERVICE_RESTART_ALWAYS ||
1907 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1908 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1909 (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) ||
1910 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1911 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1912 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1913 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1914 (s->result != SERVICE_FAILURE_SIGNAL ||
1915 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1918 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1922 service_set_state(s, SERVICE_AUTO_RESTART);
1925 s->forbid_restart = false;
1927 /* we want fresh tmpdirs in case service is started again immediately */
1928 exec_context_tmp_dirs_done(&s->exec_context);
1930 /* Try to delete the pid file. At this point it will be
1931 * out-of-date, and some software might be confused by it, so
1932 * let's remove it. */
1934 unlink_noerrno(s->pid_file);
1939 log_warning_unit(UNIT(s)->id,
1940 "%s failed to run install restart timer: %s",
1941 UNIT(s)->id, strerror(-r));
1942 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1945 static void service_enter_stop_post(Service *s, ServiceResult f) {
1949 if (f != SERVICE_SUCCESS)
1952 service_unwatch_control_pid(s);
1954 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1955 if (s->control_command) {
1956 s->control_command_id = SERVICE_EXEC_STOP_POST;
1958 r = service_spawn(s,
1962 !s->permissions_start_only,
1963 !s->root_directory_start_only,
1972 service_set_state(s, SERVICE_STOP_POST);
1974 service_enter_dead(s, SERVICE_SUCCESS, true);
1979 log_warning_unit(UNIT(s)->id,
1980 "%s failed to run 'stop-post' task: %s",
1981 UNIT(s)->id, strerror(-r));
1982 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1985 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1990 if (f != SERVICE_SUCCESS)
1993 r = unit_kill_context(
1996 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2004 if (s->timeout_stop_usec > 0) {
2005 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2006 s->timeout_stop_usec, &s->timer_watch);
2011 service_set_state(s, state);
2012 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2013 service_enter_stop_post(s, SERVICE_SUCCESS);
2015 service_enter_dead(s, SERVICE_SUCCESS, true);
2020 log_warning_unit(UNIT(s)->id,
2021 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2023 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2024 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2026 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2029 static void service_enter_stop(Service *s, ServiceResult f) {
2034 if (f != SERVICE_SUCCESS)
2037 service_unwatch_control_pid(s);
2039 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2040 if (s->control_command) {
2041 s->control_command_id = SERVICE_EXEC_STOP;
2043 r = service_spawn(s,
2047 !s->permissions_start_only,
2048 !s->root_directory_start_only,
2056 service_set_state(s, SERVICE_STOP);
2058 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2063 log_warning_unit(UNIT(s)->id,
2064 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2065 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2068 static void service_enter_running(Service *s, ServiceResult f) {
2069 int main_pid_ok, cgroup_ok;
2072 if (f != SERVICE_SUCCESS)
2075 main_pid_ok = main_pid_good(s);
2076 cgroup_ok = cgroup_good(s);
2078 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2079 (s->bus_name_good || s->type != SERVICE_DBUS))
2080 service_set_state(s, SERVICE_RUNNING);
2081 else if (s->remain_after_exit)
2082 service_set_state(s, SERVICE_EXITED);
2084 service_enter_stop(s, SERVICE_SUCCESS);
2087 static void service_enter_start_post(Service *s) {
2091 service_unwatch_control_pid(s);
2093 if (s->watchdog_usec > 0)
2094 service_reset_watchdog(s);
2096 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2097 if (s->control_command) {
2098 s->control_command_id = SERVICE_EXEC_START_POST;
2100 r = service_spawn(s,
2104 !s->permissions_start_only,
2105 !s->root_directory_start_only,
2113 service_set_state(s, SERVICE_START_POST);
2115 service_enter_running(s, SERVICE_SUCCESS);
2120 log_warning_unit(UNIT(s)->id,
2121 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2122 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2125 static void service_kill_control_processes(Service *s) {
2128 if (!UNIT(s)->cgroup_path)
2131 p = strappenda(UNIT(s)->cgroup_path, "/control");
2132 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
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 service_unwatch_control_pid(s);
2146 service_unwatch_main_pid(s);
2148 /* We want to ensure that nobody leaks processes from
2149 * START_PRE here, so let's go on a killing spree, People
2150 * should not spawn long running processes from START_PRE. */
2151 service_kill_control_processes(s);
2153 if (s->type == SERVICE_FORKING) {
2154 s->control_command_id = SERVICE_EXEC_START;
2155 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2157 s->main_command = NULL;
2159 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2160 s->control_command = NULL;
2162 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2165 r = service_spawn(s,
2167 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2168 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2173 s->notify_access != NOTIFY_NONE,
2179 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2180 /* For simple services we immediately start
2181 * the START_POST binaries. */
2183 service_set_main_pid(s, pid);
2184 service_enter_start_post(s);
2186 } else if (s->type == SERVICE_FORKING) {
2188 /* For forking services we wait until the start
2189 * process exited. */
2191 s->control_pid = pid;
2192 service_set_state(s, SERVICE_START);
2194 } else if (s->type == SERVICE_ONESHOT ||
2195 s->type == SERVICE_DBUS ||
2196 s->type == SERVICE_NOTIFY) {
2198 /* For oneshot services we wait until the start
2199 * process exited, too, but it is our main process. */
2201 /* For D-Bus services we know the main pid right away,
2202 * but wait for the bus name to appear on the
2203 * bus. Notify services are similar. */
2205 service_set_main_pid(s, pid);
2206 service_set_state(s, SERVICE_START);
2208 assert_not_reached("Unknown service type");
2213 log_warning_unit(UNIT(s)->id,
2214 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2215 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2218 static void service_enter_start_pre(Service *s) {
2223 service_unwatch_control_pid(s);
2225 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2226 if (s->control_command) {
2227 /* Before we start anything, let's clear up what might
2228 * be left from previous runs. */
2229 service_kill_control_processes(s);
2231 s->control_command_id = SERVICE_EXEC_START_PRE;
2233 r = service_spawn(s,
2237 !s->permissions_start_only,
2238 !s->root_directory_start_only,
2246 service_set_state(s, SERVICE_START_PRE);
2248 service_enter_start(s);
2253 log_warning_unit(UNIT(s)->id,
2254 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2255 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2258 static void service_enter_restart(Service *s) {
2263 dbus_error_init(&error);
2265 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2266 /* Don't restart things if we are going down anyway */
2267 log_info_unit(UNIT(s)->id,
2268 "Stop job pending for unit, delaying automatic restart.");
2270 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2277 /* Any units that are bound to this service must also be
2278 * restarted. We use JOB_RESTART (instead of the more obvious
2279 * JOB_START) here so that those dependency jobs will be added
2281 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2285 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2286 * it will be canceled as part of the service_stop() call that
2287 * is executed as part of JOB_RESTART. */
2289 log_debug_unit(UNIT(s)->id,
2290 "%s scheduled restart job.", UNIT(s)->id);
2294 log_warning_unit(UNIT(s)->id,
2295 "%s failed to schedule restart job: %s",
2296 UNIT(s)->id, bus_error(&error, -r));
2297 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2299 dbus_error_free(&error);
2302 static void service_enter_reload(Service *s) {
2307 service_unwatch_control_pid(s);
2309 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2310 if (s->control_command) {
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,
2445 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2446 true, &error, NULL);
2448 log_error_unit(UNIT(s)->id,
2449 "Failed to reboot: %s.", bus_error(&error, r));
2450 dbus_error_free(&error);
2456 case SERVICE_START_LIMIT_REBOOT_FORCE:
2457 log_warning_unit(UNIT(s)->id,
2458 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2459 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2462 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2463 log_warning_unit(UNIT(s)->id,
2464 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2466 reboot(RB_AUTOBOOT);
2470 log_error_unit(UNIT(s)->id,
2471 "start limit action=%i", s->start_limit_action);
2472 assert_not_reached("Unknown StartLimitAction.");
2478 static int service_start(Unit *u) {
2479 Service *s = SERVICE(u);
2484 /* We cannot fulfill this request right now, try again later
2486 if (s->state == SERVICE_STOP ||
2487 s->state == SERVICE_STOP_SIGTERM ||
2488 s->state == SERVICE_STOP_SIGKILL ||
2489 s->state == SERVICE_STOP_POST ||
2490 s->state == SERVICE_FINAL_SIGTERM ||
2491 s->state == SERVICE_FINAL_SIGKILL)
2494 /* Already on it! */
2495 if (s->state == SERVICE_START_PRE ||
2496 s->state == SERVICE_START ||
2497 s->state == SERVICE_START_POST)
2500 /* A service that will be restarted must be stopped first to
2501 * trigger BindsTo and/or OnFailure dependencies. If a user
2502 * does not want to wait for the holdoff time to elapse, the
2503 * service should be manually restarted, not started. We
2504 * simply return EAGAIN here, so that any start jobs stay
2505 * queued, and assume that the auto restart timer will
2506 * eventually trigger the restart. */
2507 if (s->state == SERVICE_AUTO_RESTART)
2510 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2512 /* Make sure we don't enter a busy loop of some kind. */
2513 r = service_start_limit_test(s);
2515 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2519 s->result = SERVICE_SUCCESS;
2520 s->reload_result = SERVICE_SUCCESS;
2521 s->main_pid_known = false;
2522 s->main_pid_alien = false;
2523 s->forbid_restart = false;
2525 service_enter_start_pre(s);
2529 static int service_stop(Unit *u) {
2530 Service *s = SERVICE(u);
2534 /* Don't create restart jobs from here. */
2535 s->forbid_restart = true;
2538 if (s->state == SERVICE_STOP ||
2539 s->state == SERVICE_STOP_SIGTERM ||
2540 s->state == SERVICE_STOP_SIGKILL ||
2541 s->state == SERVICE_STOP_POST ||
2542 s->state == SERVICE_FINAL_SIGTERM ||
2543 s->state == SERVICE_FINAL_SIGKILL)
2546 /* A restart will be scheduled or is in progress. */
2547 if (s->state == SERVICE_AUTO_RESTART) {
2548 service_set_state(s, SERVICE_DEAD);
2552 /* If there's already something running we go directly into
2554 if (s->state == SERVICE_START_PRE ||
2555 s->state == SERVICE_START ||
2556 s->state == SERVICE_START_POST ||
2557 s->state == SERVICE_RELOAD) {
2558 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2562 assert(s->state == SERVICE_RUNNING ||
2563 s->state == SERVICE_EXITED);
2565 service_enter_stop(s, SERVICE_SUCCESS);
2569 static int service_reload(Unit *u) {
2570 Service *s = SERVICE(u);
2574 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2576 service_enter_reload(s);
2580 _pure_ static bool service_can_reload(Unit *u) {
2581 Service *s = SERVICE(u);
2585 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2588 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2589 Service *s = SERVICE(u);
2595 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2596 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2597 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2599 if (s->control_pid > 0)
2600 unit_serialize_item_format(u, f, "control-pid", "%lu",
2601 (unsigned long) s->control_pid);
2603 if (s->main_pid_known && s->main_pid > 0)
2604 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2606 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2609 unit_serialize_item(u, f, "status-text", s->status_text);
2611 /* FIXME: There's a minor uncleanliness here: if there are
2612 * multiple commands attached here, we will start from the
2613 * first one again */
2614 if (s->control_command_id >= 0)
2615 unit_serialize_item(u, f, "control-command",
2616 service_exec_command_to_string(s->control_command_id));
2618 if (s->socket_fd >= 0) {
2621 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2624 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2627 if (s->main_exec_status.pid > 0) {
2628 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2629 (unsigned long) s->main_exec_status.pid);
2630 dual_timestamp_serialize(f, "main-exec-status-start",
2631 &s->main_exec_status.start_timestamp);
2632 dual_timestamp_serialize(f, "main-exec-status-exit",
2633 &s->main_exec_status.exit_timestamp);
2635 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2636 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2637 s->main_exec_status.code);
2638 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2639 s->main_exec_status.status);
2642 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2643 dual_timestamp_serialize(f, "watchdog-timestamp",
2644 &s->watchdog_timestamp);
2646 if (s->exec_context.tmp_dir)
2647 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2649 if (s->exec_context.var_tmp_dir)
2650 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
2655 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2656 Service *s = SERVICE(u);
2663 if (streq(key, "state")) {
2666 state = service_state_from_string(value);
2668 log_debug_unit(u->id, "Failed to parse state value %s", value);
2670 s->deserialized_state = state;
2671 } else if (streq(key, "result")) {
2674 f = service_result_from_string(value);
2676 log_debug_unit(u->id, "Failed to parse result value %s", value);
2677 else if (f != SERVICE_SUCCESS)
2680 } else if (streq(key, "reload-result")) {
2683 f = service_result_from_string(value);
2685 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2686 else if (f != SERVICE_SUCCESS)
2687 s->reload_result = f;
2689 } else if (streq(key, "control-pid")) {
2692 if (parse_pid(value, &pid) < 0)
2693 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2695 s->control_pid = pid;
2696 } else if (streq(key, "main-pid")) {
2699 if (parse_pid(value, &pid) < 0)
2700 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2702 service_set_main_pid(s, (pid_t) pid);
2703 } else if (streq(key, "main-pid-known")) {
2706 b = parse_boolean(value);
2708 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2710 s->main_pid_known = b;
2711 } else if (streq(key, "status-text")) {
2718 free(s->status_text);
2722 } else if (streq(key, "control-command")) {
2723 ServiceExecCommand id;
2725 id = service_exec_command_from_string(value);
2727 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2729 s->control_command_id = id;
2730 s->control_command = s->exec_command[id];
2732 } else if (streq(key, "socket-fd")) {
2735 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2736 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2739 if (s->socket_fd >= 0)
2740 close_nointr_nofail(s->socket_fd);
2741 s->socket_fd = fdset_remove(fds, fd);
2743 } else if (streq(key, "main-exec-status-pid")) {
2746 if (parse_pid(value, &pid) < 0)
2747 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2749 s->main_exec_status.pid = pid;
2750 } else if (streq(key, "main-exec-status-code")) {
2753 if (safe_atoi(value, &i) < 0)
2754 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2756 s->main_exec_status.code = i;
2757 } else if (streq(key, "main-exec-status-status")) {
2760 if (safe_atoi(value, &i) < 0)
2761 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2763 s->main_exec_status.status = i;
2764 } else if (streq(key, "main-exec-status-start"))
2765 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2766 else if (streq(key, "main-exec-status-exit"))
2767 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2768 else if (streq(key, "watchdog-timestamp"))
2769 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2770 else if (streq(key, "tmp-dir")) {
2777 s->exec_context.tmp_dir = t;
2778 } else if (streq(key, "var-tmp-dir")) {
2785 s->exec_context.var_tmp_dir = t;
2787 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2792 _pure_ static UnitActiveState service_active_state(Unit *u) {
2793 const UnitActiveState *table;
2797 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2799 return table[SERVICE(u)->state];
2802 static const char *service_sub_state_to_string(Unit *u) {
2805 return service_state_to_string(SERVICE(u)->state);
2808 static bool service_check_gc(Unit *u) {
2809 Service *s = SERVICE(u);
2813 /* Never clean up services that still have a process around,
2814 * even if the service is formally dead. */
2815 if (cgroup_good(s) > 0 ||
2816 main_pid_good(s) > 0 ||
2817 control_pid_good(s) > 0)
2820 #ifdef HAVE_SYSV_COMPAT
2828 _pure_ static bool service_check_snapshot(Unit *u) {
2829 Service *s = SERVICE(u);
2833 return !s->got_socket_fd;
2836 static int service_retry_pid_file(Service *s) {
2839 assert(s->pid_file);
2840 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2842 r = service_load_pid_file(s, false);
2846 service_unwatch_pid_file(s);
2848 service_enter_running(s, SERVICE_SUCCESS);
2852 static int service_watch_pid_file(Service *s) {
2855 log_debug_unit(UNIT(s)->id,
2856 "Setting watch for %s's PID file %s",
2857 UNIT(s)->id, s->pid_file_pathspec->path);
2858 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2862 /* the pidfile might have appeared just before we set the watch */
2863 log_debug_unit(UNIT(s)->id,
2864 "Trying to read %s's PID file %s in case it changed",
2865 UNIT(s)->id, s->pid_file_pathspec->path);
2866 service_retry_pid_file(s);
2870 log_error_unit(UNIT(s)->id,
2871 "Failed to set a watch for %s's PID file %s: %s",
2872 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2873 service_unwatch_pid_file(s);
2877 static int service_demand_pid_file(Service *s) {
2880 assert(s->pid_file);
2881 assert(!s->pid_file_pathspec);
2883 ps = new0(PathSpec, 1);
2887 ps->path = strdup(s->pid_file);
2893 path_kill_slashes(ps->path);
2895 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2896 * keep their PID file open all the time. */
2897 ps->type = PATH_MODIFIED;
2898 ps->inotify_fd = -1;
2900 s->pid_file_pathspec = ps;
2902 return service_watch_pid_file(s);
2905 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2906 Service *s = SERVICE(u);
2910 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2911 assert(s->pid_file_pathspec);
2912 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2914 log_debug_unit(u->id, "inotify event for %s", u->id);
2916 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2919 if (service_retry_pid_file(s) == 0)
2922 if (service_watch_pid_file(s) < 0)
2927 service_unwatch_pid_file(s);
2928 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2931 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2932 Service *s = SERVICE(u);
2938 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2939 is_clean_exit_lsb(code, status, &s->success_status))
2940 f = SERVICE_SUCCESS;
2941 else if (code == CLD_EXITED)
2942 f = SERVICE_FAILURE_EXIT_CODE;
2943 else if (code == CLD_KILLED)
2944 f = SERVICE_FAILURE_SIGNAL;
2945 else if (code == CLD_DUMPED)
2946 f = SERVICE_FAILURE_CORE_DUMP;
2948 assert_not_reached("Unknown code");
2950 if (s->main_pid == pid) {
2951 /* Forking services may occasionally move to a new PID.
2952 * As long as they update the PID file before exiting the old
2953 * PID, they're fine. */
2954 if (service_load_pid_file(s, false) == 0)
2958 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2960 if (s->main_command) {
2961 /* If this is not a forking service than the
2962 * main process got started and hence we copy
2963 * the exit status so that it is recorded both
2964 * as main and as control process exit
2967 s->main_command->exec_status = s->main_exec_status;
2969 if (s->main_command->ignore)
2970 f = SERVICE_SUCCESS;
2971 } else if (s->exec_command[SERVICE_EXEC_START]) {
2973 /* If this is a forked process, then we should
2974 * ignore the return value if this was
2975 * configured for the starter process */
2977 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2978 f = SERVICE_SUCCESS;
2981 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2983 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2984 u->id, sigchld_code_to_string(code), status,
2985 strna(code == CLD_EXITED
2986 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2987 : signal_to_string(status)),
2988 "EXIT_CODE=%s", sigchld_code_to_string(code),
2989 "EXIT_STATUS=%i", status,
2992 if (f != SERVICE_SUCCESS)
2995 if (s->main_command &&
2996 s->main_command->command_next &&
2997 f == SERVICE_SUCCESS) {
2999 /* There is another command to *
3000 * execute, so let's do that. */
3002 log_debug_unit(u->id,
3003 "%s running next main command for state %s",
3004 u->id, service_state_to_string(s->state));
3005 service_run_next_main(s);
3009 /* The service exited, so the service is officially
3011 s->main_command = NULL;
3015 case SERVICE_START_POST:
3016 case SERVICE_RELOAD:
3018 /* Need to wait until the operation is
3023 if (s->type == SERVICE_ONESHOT) {
3024 /* This was our main goal, so let's go on */
3025 if (f == SERVICE_SUCCESS)
3026 service_enter_start_post(s);
3028 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3034 case SERVICE_RUNNING:
3035 service_enter_running(s, f);
3038 case SERVICE_STOP_SIGTERM:
3039 case SERVICE_STOP_SIGKILL:
3041 if (!control_pid_good(s))
3042 service_enter_stop_post(s, f);
3044 /* If there is still a control process, wait for that first */
3048 assert_not_reached("Uh, main process died at wrong time.");
3052 } else if (s->control_pid == pid) {
3055 if (s->control_command) {
3056 exec_status_exit(&s->control_command->exec_status,
3057 &s->exec_context, pid, code, status);
3059 if (s->control_command->ignore)
3060 f = SERVICE_SUCCESS;
3063 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3064 "%s: control process exited, code=%s status=%i",
3065 u->id, sigchld_code_to_string(code), status);
3067 if (f != SERVICE_SUCCESS)
3070 /* Immediately get rid of the cgroup, so that the
3071 * kernel doesn't delay the cgroup empty messages for
3072 * the service cgroup any longer than necessary */
3073 service_kill_control_processes(s);
3075 if (s->control_command &&
3076 s->control_command->command_next &&
3077 f == SERVICE_SUCCESS) {
3079 /* There is another command to *
3080 * execute, so let's do that. */
3082 log_debug_unit(u->id,
3083 "%s running next control command for state %s",
3084 u->id, service_state_to_string(s->state));
3085 service_run_next_control(s);
3088 /* No further commands for this step, so let's
3089 * figure out what to do next */
3091 s->control_command = NULL;
3092 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3094 log_debug_unit(u->id,
3095 "%s got final SIGCHLD for state %s",
3096 u->id, service_state_to_string(s->state));
3100 case SERVICE_START_PRE:
3101 if (f == SERVICE_SUCCESS)
3102 service_enter_start(s);
3104 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3108 if (s->type != SERVICE_FORKING)
3109 /* Maybe spurious event due to a reload that changed the type? */
3112 if (f != SERVICE_SUCCESS) {
3113 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3118 bool has_start_post;
3121 /* Let's try to load the pid file here if we can.
3122 * The PID file might actually be created by a START_POST
3123 * script. In that case don't worry if the loading fails. */
3125 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3126 r = service_load_pid_file(s, !has_start_post);
3127 if (!has_start_post && r < 0) {
3128 r = service_demand_pid_file(s);
3129 if (r < 0 || !cgroup_good(s))
3130 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3134 service_search_main_pid(s);
3136 service_enter_start_post(s);
3139 case SERVICE_START_POST:
3140 if (f != SERVICE_SUCCESS) {
3141 service_enter_stop(s, f);
3148 r = service_load_pid_file(s, true);
3150 r = service_demand_pid_file(s);
3151 if (r < 0 || !cgroup_good(s))
3152 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3156 service_search_main_pid(s);
3158 service_enter_running(s, SERVICE_SUCCESS);
3161 case SERVICE_RELOAD:
3162 if (f == SERVICE_SUCCESS) {
3163 service_load_pid_file(s, true);
3164 service_search_main_pid(s);
3167 s->reload_result = f;
3168 service_enter_running(s, SERVICE_SUCCESS);
3172 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3175 case SERVICE_STOP_SIGTERM:
3176 case SERVICE_STOP_SIGKILL:
3177 if (main_pid_good(s) <= 0)
3178 service_enter_stop_post(s, f);
3180 /* If there is still a service
3181 * process around, wait until
3182 * that one quit, too */
3185 case SERVICE_STOP_POST:
3186 case SERVICE_FINAL_SIGTERM:
3187 case SERVICE_FINAL_SIGKILL:
3188 service_enter_dead(s, f, true);
3192 assert_not_reached("Uh, control process died at wrong time.");
3197 /* Notify clients about changed exit status */
3198 unit_add_to_dbus_queue(u);
3201 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3202 Service *s = SERVICE(u);
3205 assert(elapsed == 1);
3207 if (w == &s->watchdog_watch) {
3208 service_handle_watchdog(s);
3212 assert(w == &s->timer_watch);
3216 case SERVICE_START_PRE:
3218 log_warning_unit(u->id,
3219 "%s operation timed out. Terminating.", u->id);
3220 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3223 case SERVICE_START_POST:
3224 log_warning_unit(u->id,
3225 "%s operation timed out. Stopping.", u->id);
3226 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3229 case SERVICE_RELOAD:
3230 log_warning_unit(u->id,
3231 "%s operation timed out. Stopping.", u->id);
3232 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3233 service_enter_running(s, SERVICE_SUCCESS);
3237 log_warning_unit(u->id,
3238 "%s stopping timed out. Terminating.", u->id);
3239 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3242 case SERVICE_STOP_SIGTERM:
3243 if (s->kill_context.send_sigkill) {
3244 log_warning_unit(u->id,
3245 "%s stopping timed out. Killing.", u->id);
3246 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3248 log_warning_unit(u->id,
3249 "%s stopping timed out. Skipping SIGKILL.", u->id);
3250 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3255 case SERVICE_STOP_SIGKILL:
3256 /* Uh, we sent a SIGKILL and it is still not gone?
3257 * Must be something we cannot kill, so let's just be
3258 * weirded out and continue */
3260 log_warning_unit(u->id,
3261 "%s still around after SIGKILL. Ignoring.", u->id);
3262 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3265 case SERVICE_STOP_POST:
3266 log_warning_unit(u->id,
3267 "%s stopping timed out (2). Terminating.", u->id);
3268 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3271 case SERVICE_FINAL_SIGTERM:
3272 if (s->kill_context.send_sigkill) {
3273 log_warning_unit(u->id,
3274 "%s stopping timed out (2). Killing.", u->id);
3275 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3277 log_warning_unit(u->id,
3278 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3280 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3285 case SERVICE_FINAL_SIGKILL:
3286 log_warning_unit(u->id,
3287 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3288 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3291 case SERVICE_AUTO_RESTART:
3292 log_info_unit(u->id,
3293 "%s holdoff time over, scheduling restart.", u->id);
3294 service_enter_restart(s);
3298 assert_not_reached("Timeout at wrong time.");
3302 static void service_notify_cgroup_empty_event(Unit *u) {
3303 Service *s = SERVICE(u);
3307 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
3311 /* Waiting for SIGCHLD is usually more interesting,
3312 * because it includes return codes/signals. Which is
3313 * why we ignore the cgroup events for most cases,
3314 * except when we don't know pid which to expect the
3318 case SERVICE_START_POST:
3319 /* If we were hoping for the daemon to write its PID file,
3320 * we can give up now. */
3321 if (s->pid_file_pathspec) {
3322 log_warning_unit(u->id,
3323 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3324 service_unwatch_pid_file(s);
3325 if (s->state == SERVICE_START)
3326 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3328 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3332 case SERVICE_RUNNING:
3333 /* service_enter_running() will figure out what to do */
3334 service_enter_running(s, SERVICE_SUCCESS);
3337 case SERVICE_STOP_SIGTERM:
3338 case SERVICE_STOP_SIGKILL:
3340 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3341 service_enter_stop_post(s, SERVICE_SUCCESS);
3345 case SERVICE_FINAL_SIGTERM:
3346 case SERVICE_FINAL_SIGKILL:
3347 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3348 service_enter_dead(s, SERVICE_SUCCESS, true);
3357 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3358 Service *s = SERVICE(u);
3363 if (s->notify_access == NOTIFY_NONE) {
3364 log_warning_unit(u->id,
3365 "%s: Got notification message from PID %lu, but reception is disabled.",
3366 u->id, (unsigned long) pid);
3370 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3371 log_warning_unit(u->id,
3372 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3373 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3377 log_debug_unit(u->id,
3378 "%s: Got message", u->id);
3380 /* Interpret MAINPID= */
3381 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3382 (s->state == SERVICE_START ||
3383 s->state == SERVICE_START_POST ||
3384 s->state == SERVICE_RUNNING ||
3385 s->state == SERVICE_RELOAD)) {
3387 if (parse_pid(e + 8, &pid) < 0)
3388 log_warning_unit(u->id,
3389 "Failed to parse notification message %s", e);
3391 log_debug_unit(u->id,
3392 "%s: got %s", u->id, e);
3393 service_set_main_pid(s, pid);
3397 /* Interpret READY= */
3398 if (s->type == SERVICE_NOTIFY &&
3399 s->state == SERVICE_START &&
3400 strv_find(tags, "READY=1")) {
3401 log_debug_unit(u->id,
3402 "%s: got READY=1", u->id);
3404 service_enter_start_post(s);
3407 /* Interpret STATUS= */
3408 e = strv_find_prefix(tags, "STATUS=");
3414 if (!utf8_is_valid(e+7)) {
3415 log_warning_unit(u->id,
3416 "Status message in notification is not UTF-8 clean.");
3422 log_error_unit(u->id,
3423 "Failed to allocate string.");
3427 log_debug_unit(u->id,
3428 "%s: got %s", u->id, e);
3430 free(s->status_text);
3433 free(s->status_text);
3434 s->status_text = NULL;
3438 if (strv_find(tags, "WATCHDOG=1")) {
3439 log_debug_unit(u->id,
3440 "%s: got WATCHDOG=1", u->id);
3441 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3442 service_reset_watchdog(s);
3445 /* Notify clients about changed status or main pid */
3446 unit_add_to_dbus_queue(u);
3449 #ifdef HAVE_SYSV_COMPAT
3451 static int service_enumerate(Manager *m) {
3454 _cleanup_closedir_ DIR *d = NULL;
3455 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3456 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3457 _cleanup_set_free_ Set *shutdown_services = NULL;
3464 if (m->running_as != SYSTEMD_SYSTEM)
3467 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3468 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3472 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3483 if (errno != ENOENT)
3484 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3489 while ((de = readdir(d))) {
3492 if (ignore_file(de->d_name))
3495 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3498 if (strlen(de->d_name) < 4)
3501 a = undecchar(de->d_name[1]);
3502 b = undecchar(de->d_name[2]);
3508 fpath = strjoin(path, "/", de->d_name, NULL);
3514 if (access(fpath, X_OK) < 0) {
3516 if (errno != ENOENT)
3517 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3523 name = sysv_translate_name(de->d_name + 3);
3529 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3531 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3535 if (de->d_name[0] == 'S') {
3537 if (rcnd_table[i].type == RUNLEVEL_UP) {
3538 SERVICE(service)->sysv_start_priority_from_rcnd =
3539 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3541 SERVICE(service)->sysv_enabled = true;
3544 r = set_ensure_allocated(&runlevel_services[i],
3545 trivial_hash_func, trivial_compare_func);
3549 r = set_put(runlevel_services[i], service);
3553 } else if (de->d_name[0] == 'K' &&
3554 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3556 r = set_ensure_allocated(&shutdown_services,
3557 trivial_hash_func, trivial_compare_func);
3561 r = set_put(shutdown_services, service);
3568 /* Now we loaded all stubs and are aware of the lowest
3569 start-up priority for all services, not let's actually load
3570 the services, this will also tell us which services are
3571 actually native now */
3572 manager_dispatch_load_queue(m);
3574 /* If this is a native service, rely on native ways to pull in
3575 * a service, don't pull it in via sysv rcN.d links. */
3576 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3577 SET_FOREACH(service, runlevel_services[i], j) {
3578 service = unit_follow_merge(service);
3580 if (service->fragment_path)
3583 r = unit_add_two_dependencies_by_name_inverse(
3584 service, UNIT_AFTER, UNIT_WANTS,
3585 rcnd_table[i].target, NULL, true);
3590 /* We honour K links only for halt/reboot. For the normal
3591 * runlevels we assume the stop jobs will be implicitly added
3592 * by the core logic. Also, we don't really distinguish here
3593 * between the runlevels 0 and 6 and just add them to the
3594 * special shutdown target. */
3595 SET_FOREACH(service, shutdown_services, j) {
3596 service = unit_follow_merge(service);
3598 if (service->fragment_path)
3601 r = unit_add_two_dependencies_by_name(
3602 service, UNIT_BEFORE, UNIT_CONFLICTS,
3603 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3612 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3613 set_free(runlevel_services[i]);
3619 static void service_bus_name_owner_change(
3622 const char *old_owner,
3623 const char *new_owner) {
3625 Service *s = SERVICE(u);
3630 assert(streq(s->bus_name, name));
3631 assert(old_owner || new_owner);
3633 if (old_owner && new_owner)
3634 log_debug_unit(u->id,
3635 "%s's D-Bus name %s changed owner from %s to %s",
3636 u->id, name, old_owner, new_owner);
3638 log_debug_unit(u->id,
3639 "%s's D-Bus name %s no longer registered by %s",
3640 u->id, name, old_owner);
3642 log_debug_unit(u->id,
3643 "%s's D-Bus name %s now registered by %s",
3644 u->id, name, new_owner);
3646 s->bus_name_good = !!new_owner;
3648 if (s->type == SERVICE_DBUS) {
3650 /* service_enter_running() will figure out what to
3652 if (s->state == SERVICE_RUNNING)
3653 service_enter_running(s, SERVICE_SUCCESS);
3654 else if (s->state == SERVICE_START && new_owner)
3655 service_enter_start_post(s);
3657 } else if (new_owner &&
3659 (s->state == SERVICE_START ||
3660 s->state == SERVICE_START_POST ||
3661 s->state == SERVICE_RUNNING ||
3662 s->state == SERVICE_RELOAD)) {
3664 /* Try to acquire PID from bus service */
3665 log_debug_unit(u->id,
3666 "Trying to acquire PID from D-Bus name...");
3668 bus_query_pid(u->manager, name);
3672 static void service_bus_query_pid_done(
3677 Service *s = SERVICE(u);
3682 log_debug_unit(u->id,
3683 "%s's D-Bus name %s is now owned by process %u",
3684 u->id, name, (unsigned) pid);
3686 if (s->main_pid <= 0 &&
3687 (s->state == SERVICE_START ||
3688 s->state == SERVICE_START_POST ||
3689 s->state == SERVICE_RUNNING ||
3690 s->state == SERVICE_RELOAD))
3691 service_set_main_pid(s, pid);
3694 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3699 /* This is called by the socket code when instantiating a new
3700 * service for a stream socket and the socket needs to be
3703 if (UNIT(s)->load_state != UNIT_LOADED)
3706 if (s->socket_fd >= 0)
3709 if (s->state != SERVICE_DEAD)
3713 s->got_socket_fd = true;
3715 unit_ref_set(&s->accept_socket, UNIT(sock));
3717 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3720 static void service_reset_failed(Unit *u) {
3721 Service *s = SERVICE(u);
3725 if (s->state == SERVICE_FAILED)
3726 service_set_state(s, SERVICE_DEAD);
3728 s->result = SERVICE_SUCCESS;
3729 s->reload_result = SERVICE_SUCCESS;
3731 RATELIMIT_RESET(s->start_limit);
3734 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3735 Service *s = SERVICE(u);
3737 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3740 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3741 [SERVICE_DEAD] = "dead",
3742 [SERVICE_START_PRE] = "start-pre",
3743 [SERVICE_START] = "start",
3744 [SERVICE_START_POST] = "start-post",
3745 [SERVICE_RUNNING] = "running",
3746 [SERVICE_EXITED] = "exited",
3747 [SERVICE_RELOAD] = "reload",
3748 [SERVICE_STOP] = "stop",
3749 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3750 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3751 [SERVICE_STOP_POST] = "stop-post",
3752 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3753 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3754 [SERVICE_FAILED] = "failed",
3755 [SERVICE_AUTO_RESTART] = "auto-restart",
3758 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3760 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3761 [SERVICE_RESTART_NO] = "no",
3762 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3763 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3764 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3765 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3766 [SERVICE_RESTART_ALWAYS] = "always"
3769 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3771 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3772 [SERVICE_SIMPLE] = "simple",
3773 [SERVICE_FORKING] = "forking",
3774 [SERVICE_ONESHOT] = "oneshot",
3775 [SERVICE_DBUS] = "dbus",
3776 [SERVICE_NOTIFY] = "notify",
3777 [SERVICE_IDLE] = "idle"
3780 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3782 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3783 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3784 [SERVICE_EXEC_START] = "ExecStart",
3785 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3786 [SERVICE_EXEC_RELOAD] = "ExecReload",
3787 [SERVICE_EXEC_STOP] = "ExecStop",
3788 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3791 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3793 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3794 [NOTIFY_NONE] = "none",
3795 [NOTIFY_MAIN] = "main",
3796 [NOTIFY_ALL] = "all"
3799 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3801 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3802 [SERVICE_SUCCESS] = "success",
3803 [SERVICE_FAILURE_RESOURCES] = "resources",
3804 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3805 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3806 [SERVICE_FAILURE_SIGNAL] = "signal",
3807 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3808 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3809 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3812 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3814 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3815 [SERVICE_START_LIMIT_NONE] = "none",
3816 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3817 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3818 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3820 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3822 const UnitVTable service_vtable = {
3823 .object_size = sizeof(Service),
3830 .private_section = "Service",
3831 .exec_context_offset = offsetof(Service, exec_context),
3832 .cgroup_context_offset = offsetof(Service, cgroup_context),
3834 .init = service_init,
3835 .done = service_done,
3836 .load = service_load,
3838 .coldplug = service_coldplug,
3840 .dump = service_dump,
3842 .start = service_start,
3843 .stop = service_stop,
3844 .reload = service_reload,
3846 .can_reload = service_can_reload,
3848 .kill = service_kill,
3850 .serialize = service_serialize,
3851 .deserialize_item = service_deserialize_item,
3853 .active_state = service_active_state,
3854 .sub_state_to_string = service_sub_state_to_string,
3856 .check_gc = service_check_gc,
3857 .check_snapshot = service_check_snapshot,
3859 .sigchld_event = service_sigchld_event,
3860 .timer_event = service_timer_event,
3861 .fd_event = service_fd_event,
3863 .reset_failed = service_reset_failed,
3865 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3866 .notify_message = service_notify_message,
3868 .bus_name_owner_change = service_bus_name_owner_change,
3869 .bus_query_pid_done = service_bus_query_pid_done,
3871 .bus_interface = "org.freedesktop.systemd1.Service",
3872 .bus_message_handler = bus_service_message_handler,
3873 .bus_invalidating_properties = bus_service_invalidating_properties,
3874 .bus_set_property = bus_service_set_property,
3875 .bus_commit_properties = bus_service_commit_properties,
3877 .can_transient = true,
3879 #ifdef HAVE_SYSV_COMPAT
3880 .enumerate = service_enumerate,
3882 .status_message_formats = {
3883 .starting_stopping = {
3884 [0] = "Starting %s...",
3885 [1] = "Stopping %s...",
3887 .finished_start_job = {
3888 [JOB_DONE] = "Started %s.",
3889 [JOB_FAILED] = "Failed to start %s.",
3890 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3891 [JOB_TIMEOUT] = "Timed out starting %s.",
3893 .finished_stop_job = {
3894 [JOB_DONE] = "Stopped %s.",
3895 [JOB_FAILED] = "Stopped (with error) %s.",
3896 [JOB_TIMEOUT] = "Timed out stopping %s.",