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 r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
1772 our_env = new0(char*, 5);
1778 if (set_notify_socket)
1779 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1784 if (s->main_pid > 0)
1785 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1790 if (s->watchdog_usec > 0)
1791 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1796 if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
1797 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1802 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1808 if (is_control && UNIT(s)->cgroup_path) {
1809 path = strappenda(UNIT(s)->cgroup_path, "/control");
1810 cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
1812 path = UNIT(s)->cgroup_path;
1822 UNIT(s)->manager->confirm_spawn,
1823 UNIT(s)->cgroup_mask,
1826 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1831 r = unit_watch_pid(UNIT(s), pid);
1833 /* FIXME: we need to do something here */
1842 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1847 static int main_pid_good(Service *s) {
1850 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1853 /* If we know the pid file, then lets just check if it is
1855 if (s->main_pid_known) {
1857 /* If it's an alien child let's check if it is still
1859 if (s->main_pid_alien && s->main_pid > 0)
1860 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1862 /* .. otherwise assume we'll get a SIGCHLD for it,
1863 * which we really should wait for to collect exit
1864 * status and code */
1865 return s->main_pid > 0;
1868 /* We don't know the pid */
1872 _pure_ static int control_pid_good(Service *s) {
1875 return s->control_pid > 0;
1878 static int cgroup_good(Service *s) {
1883 if (!UNIT(s)->cgroup_path)
1886 r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true);
1893 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1897 if (f != SERVICE_SUCCESS)
1900 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1902 if (allow_restart &&
1903 !s->forbid_restart &&
1904 (s->restart == SERVICE_RESTART_ALWAYS ||
1905 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1906 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1907 (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) ||
1908 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1909 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1910 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1911 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1912 (s->result != SERVICE_FAILURE_SIGNAL ||
1913 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1916 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
1920 service_set_state(s, SERVICE_AUTO_RESTART);
1923 s->forbid_restart = false;
1925 /* we want fresh tmpdirs in case service is started again immediately */
1926 exec_context_tmp_dirs_done(&s->exec_context);
1928 /* Try to delete the pid file. At this point it will be
1929 * out-of-date, and some software might be confused by it, so
1930 * let's remove it. */
1932 unlink_noerrno(s->pid_file);
1937 log_warning_unit(UNIT(s)->id,
1938 "%s failed to run install restart timer: %s",
1939 UNIT(s)->id, strerror(-r));
1940 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1943 static void service_enter_stop_post(Service *s, ServiceResult f) {
1947 if (f != SERVICE_SUCCESS)
1950 service_unwatch_control_pid(s);
1952 s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
1953 if (s->control_command) {
1954 s->control_command_id = SERVICE_EXEC_STOP_POST;
1956 r = service_spawn(s,
1960 !s->permissions_start_only,
1961 !s->root_directory_start_only,
1970 service_set_state(s, SERVICE_STOP_POST);
1972 service_enter_dead(s, SERVICE_SUCCESS, true);
1977 log_warning_unit(UNIT(s)->id,
1978 "%s failed to run 'stop-post' task: %s",
1979 UNIT(s)->id, strerror(-r));
1980 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1983 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1988 if (f != SERVICE_SUCCESS)
1991 r = unit_kill_context(
1994 state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
2002 if (s->timeout_stop_usec > 0) {
2003 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
2004 s->timeout_stop_usec, &s->timer_watch);
2009 service_set_state(s, state);
2010 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2011 service_enter_stop_post(s, SERVICE_SUCCESS);
2013 service_enter_dead(s, SERVICE_SUCCESS, true);
2018 log_warning_unit(UNIT(s)->id,
2019 "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2021 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2022 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2024 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2027 static void service_enter_stop(Service *s, ServiceResult f) {
2032 if (f != SERVICE_SUCCESS)
2035 service_unwatch_control_pid(s);
2037 s->control_command = s->exec_command[SERVICE_EXEC_STOP];
2038 if (s->control_command) {
2039 s->control_command_id = SERVICE_EXEC_STOP;
2041 r = service_spawn(s,
2045 !s->permissions_start_only,
2046 !s->root_directory_start_only,
2054 service_set_state(s, SERVICE_STOP);
2056 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2061 log_warning_unit(UNIT(s)->id,
2062 "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2063 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2066 static void service_enter_running(Service *s, ServiceResult f) {
2067 int main_pid_ok, cgroup_ok;
2070 if (f != SERVICE_SUCCESS)
2073 main_pid_ok = main_pid_good(s);
2074 cgroup_ok = cgroup_good(s);
2076 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2077 (s->bus_name_good || s->type != SERVICE_DBUS))
2078 service_set_state(s, SERVICE_RUNNING);
2079 else if (s->remain_after_exit)
2080 service_set_state(s, SERVICE_EXITED);
2082 service_enter_stop(s, SERVICE_SUCCESS);
2085 static void service_enter_start_post(Service *s) {
2089 service_unwatch_control_pid(s);
2091 if (s->watchdog_usec > 0)
2092 service_reset_watchdog(s);
2094 s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
2095 if (s->control_command) {
2096 s->control_command_id = SERVICE_EXEC_START_POST;
2098 r = service_spawn(s,
2102 !s->permissions_start_only,
2103 !s->root_directory_start_only,
2111 service_set_state(s, SERVICE_START_POST);
2113 service_enter_running(s, SERVICE_SUCCESS);
2118 log_warning_unit(UNIT(s)->id,
2119 "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2120 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2123 static void service_kill_control_processes(Service *s) {
2126 if (!UNIT(s)->cgroup_path)
2129 p = strappenda(UNIT(s)->cgroup_path, "/control");
2130 cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL);
2133 static void service_enter_start(Service *s) {
2140 assert(s->exec_command[SERVICE_EXEC_START]);
2141 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2143 service_unwatch_control_pid(s);
2144 service_unwatch_main_pid(s);
2146 /* We want to ensure that nobody leaks processes from
2147 * START_PRE here, so let's go on a killing spree, People
2148 * should not spawn long running processes from START_PRE. */
2149 service_kill_control_processes(s);
2151 if (s->type == SERVICE_FORKING) {
2152 s->control_command_id = SERVICE_EXEC_START;
2153 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2155 s->main_command = NULL;
2157 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2158 s->control_command = NULL;
2160 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2163 r = service_spawn(s,
2165 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
2166 s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2171 s->notify_access != NOTIFY_NONE,
2177 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2178 /* For simple services we immediately start
2179 * the START_POST binaries. */
2181 service_set_main_pid(s, pid);
2182 service_enter_start_post(s);
2184 } else if (s->type == SERVICE_FORKING) {
2186 /* For forking services we wait until the start
2187 * process exited. */
2189 s->control_pid = pid;
2190 service_set_state(s, SERVICE_START);
2192 } else if (s->type == SERVICE_ONESHOT ||
2193 s->type == SERVICE_DBUS ||
2194 s->type == SERVICE_NOTIFY) {
2196 /* For oneshot services we wait until the start
2197 * process exited, too, but it is our main process. */
2199 /* For D-Bus services we know the main pid right away,
2200 * but wait for the bus name to appear on the
2201 * bus. Notify services are similar. */
2203 service_set_main_pid(s, pid);
2204 service_set_state(s, SERVICE_START);
2206 assert_not_reached("Unknown service type");
2211 log_warning_unit(UNIT(s)->id,
2212 "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2213 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2216 static void service_enter_start_pre(Service *s) {
2221 service_unwatch_control_pid(s);
2223 s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
2224 if (s->control_command) {
2225 /* Before we start anything, let's clear up what might
2226 * be left from previous runs. */
2227 service_kill_control_processes(s);
2229 s->control_command_id = SERVICE_EXEC_START_PRE;
2231 r = service_spawn(s,
2235 !s->permissions_start_only,
2236 !s->root_directory_start_only,
2244 service_set_state(s, SERVICE_START_PRE);
2246 service_enter_start(s);
2251 log_warning_unit(UNIT(s)->id,
2252 "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2253 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2256 static void service_enter_restart(Service *s) {
2261 dbus_error_init(&error);
2263 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2264 /* Don't restart things if we are going down anyway */
2265 log_info_unit(UNIT(s)->id,
2266 "Stop job pending for unit, delaying automatic restart.");
2268 r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
2275 /* Any units that are bound to this service must also be
2276 * restarted. We use JOB_RESTART (instead of the more obvious
2277 * JOB_START) here so that those dependency jobs will be added
2279 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2283 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2284 * it will be canceled as part of the service_stop() call that
2285 * is executed as part of JOB_RESTART. */
2287 log_debug_unit(UNIT(s)->id,
2288 "%s scheduled restart job.", UNIT(s)->id);
2292 log_warning_unit(UNIT(s)->id,
2293 "%s failed to schedule restart job: %s",
2294 UNIT(s)->id, bus_error(&error, -r));
2295 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2297 dbus_error_free(&error);
2300 static void service_enter_reload(Service *s) {
2305 service_unwatch_control_pid(s);
2307 s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
2308 if (s->control_command) {
2309 s->control_command_id = SERVICE_EXEC_RELOAD;
2311 r = service_spawn(s,
2315 !s->permissions_start_only,
2316 !s->root_directory_start_only,
2324 service_set_state(s, SERVICE_RELOAD);
2326 service_enter_running(s, SERVICE_SUCCESS);
2331 log_warning_unit(UNIT(s)->id,
2332 "%s failed to run 'reload' task: %s",
2333 UNIT(s)->id, strerror(-r));
2334 s->reload_result = SERVICE_FAILURE_RESOURCES;
2335 service_enter_running(s, SERVICE_SUCCESS);
2338 static void service_run_next_control(Service *s) {
2342 assert(s->control_command);
2343 assert(s->control_command->command_next);
2345 assert(s->control_command_id != SERVICE_EXEC_START);
2347 s->control_command = s->control_command->command_next;
2348 service_unwatch_control_pid(s);
2350 r = service_spawn(s,
2354 !s->permissions_start_only,
2355 !s->root_directory_start_only,
2356 s->control_command_id == SERVICE_EXEC_START_PRE ||
2357 s->control_command_id == SERVICE_EXEC_STOP_POST,
2367 log_warning_unit(UNIT(s)->id,
2368 "%s failed to run next control task: %s",
2369 UNIT(s)->id, strerror(-r));
2371 if (s->state == SERVICE_START_PRE)
2372 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2373 else if (s->state == SERVICE_STOP)
2374 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2375 else if (s->state == SERVICE_STOP_POST)
2376 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2377 else if (s->state == SERVICE_RELOAD) {
2378 s->reload_result = SERVICE_FAILURE_RESOURCES;
2379 service_enter_running(s, SERVICE_SUCCESS);
2381 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2384 static void service_run_next_main(Service *s) {
2389 assert(s->main_command);
2390 assert(s->main_command->command_next);
2391 assert(s->type == SERVICE_ONESHOT);
2393 s->main_command = s->main_command->command_next;
2394 service_unwatch_main_pid(s);
2396 r = service_spawn(s,
2403 s->notify_access != NOTIFY_NONE,
2409 service_set_main_pid(s, pid);
2414 log_warning_unit(UNIT(s)->id,
2415 "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2416 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2419 static int service_start_limit_test(Service *s) {
2422 if (ratelimit_test(&s->start_limit))
2425 switch (s->start_limit_action) {
2427 case SERVICE_START_LIMIT_NONE:
2428 log_warning_unit(UNIT(s)->id,
2429 "%s start request repeated too quickly, refusing to start.",
2433 case SERVICE_START_LIMIT_REBOOT: {
2437 dbus_error_init(&error);
2439 log_warning_unit(UNIT(s)->id,
2440 "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2442 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
2443 SPECIAL_REBOOT_TARGET, JOB_REPLACE,
2444 true, &error, NULL);
2446 log_error_unit(UNIT(s)->id,
2447 "Failed to reboot: %s.", bus_error(&error, r));
2448 dbus_error_free(&error);
2454 case SERVICE_START_LIMIT_REBOOT_FORCE:
2455 log_warning_unit(UNIT(s)->id,
2456 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2457 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2460 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2461 log_warning_unit(UNIT(s)->id,
2462 "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2464 reboot(RB_AUTOBOOT);
2468 log_error_unit(UNIT(s)->id,
2469 "start limit action=%i", s->start_limit_action);
2470 assert_not_reached("Unknown StartLimitAction.");
2476 static int service_start(Unit *u) {
2477 Service *s = SERVICE(u);
2482 /* We cannot fulfill this request right now, try again later
2484 if (s->state == SERVICE_STOP ||
2485 s->state == SERVICE_STOP_SIGTERM ||
2486 s->state == SERVICE_STOP_SIGKILL ||
2487 s->state == SERVICE_STOP_POST ||
2488 s->state == SERVICE_FINAL_SIGTERM ||
2489 s->state == SERVICE_FINAL_SIGKILL)
2492 /* Already on it! */
2493 if (s->state == SERVICE_START_PRE ||
2494 s->state == SERVICE_START ||
2495 s->state == SERVICE_START_POST)
2498 /* A service that will be restarted must be stopped first to
2499 * trigger BindsTo and/or OnFailure dependencies. If a user
2500 * does not want to wait for the holdoff time to elapse, the
2501 * service should be manually restarted, not started. We
2502 * simply return EAGAIN here, so that any start jobs stay
2503 * queued, and assume that the auto restart timer will
2504 * eventually trigger the restart. */
2505 if (s->state == SERVICE_AUTO_RESTART)
2508 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2510 /* Make sure we don't enter a busy loop of some kind. */
2511 r = service_start_limit_test(s);
2513 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2517 s->result = SERVICE_SUCCESS;
2518 s->reload_result = SERVICE_SUCCESS;
2519 s->main_pid_known = false;
2520 s->main_pid_alien = false;
2521 s->forbid_restart = false;
2523 service_enter_start_pre(s);
2527 static int service_stop(Unit *u) {
2528 Service *s = SERVICE(u);
2532 /* Don't create restart jobs from here. */
2533 s->forbid_restart = true;
2536 if (s->state == SERVICE_STOP ||
2537 s->state == SERVICE_STOP_SIGTERM ||
2538 s->state == SERVICE_STOP_SIGKILL ||
2539 s->state == SERVICE_STOP_POST ||
2540 s->state == SERVICE_FINAL_SIGTERM ||
2541 s->state == SERVICE_FINAL_SIGKILL)
2544 /* A restart will be scheduled or is in progress. */
2545 if (s->state == SERVICE_AUTO_RESTART) {
2546 service_set_state(s, SERVICE_DEAD);
2550 /* If there's already something running we go directly into
2552 if (s->state == SERVICE_START_PRE ||
2553 s->state == SERVICE_START ||
2554 s->state == SERVICE_START_POST ||
2555 s->state == SERVICE_RELOAD) {
2556 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2560 assert(s->state == SERVICE_RUNNING ||
2561 s->state == SERVICE_EXITED);
2563 service_enter_stop(s, SERVICE_SUCCESS);
2567 static int service_reload(Unit *u) {
2568 Service *s = SERVICE(u);
2572 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2574 service_enter_reload(s);
2578 _pure_ static bool service_can_reload(Unit *u) {
2579 Service *s = SERVICE(u);
2583 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2586 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2587 Service *s = SERVICE(u);
2593 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2594 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2595 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2597 if (s->control_pid > 0)
2598 unit_serialize_item_format(u, f, "control-pid", "%lu",
2599 (unsigned long) s->control_pid);
2601 if (s->main_pid_known && s->main_pid > 0)
2602 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2604 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2607 unit_serialize_item(u, f, "status-text", s->status_text);
2609 /* FIXME: There's a minor uncleanliness here: if there are
2610 * multiple commands attached here, we will start from the
2611 * first one again */
2612 if (s->control_command_id >= 0)
2613 unit_serialize_item(u, f, "control-command",
2614 service_exec_command_to_string(s->control_command_id));
2616 if (s->socket_fd >= 0) {
2619 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2622 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2625 if (s->main_exec_status.pid > 0) {
2626 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
2627 (unsigned long) s->main_exec_status.pid);
2628 dual_timestamp_serialize(f, "main-exec-status-start",
2629 &s->main_exec_status.start_timestamp);
2630 dual_timestamp_serialize(f, "main-exec-status-exit",
2631 &s->main_exec_status.exit_timestamp);
2633 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2634 unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
2635 s->main_exec_status.code);
2636 unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
2637 s->main_exec_status.status);
2640 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2641 dual_timestamp_serialize(f, "watchdog-timestamp",
2642 &s->watchdog_timestamp);
2644 if (s->exec_context.tmp_dir)
2645 unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
2647 if (s->exec_context.var_tmp_dir)
2648 unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
2653 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2654 Service *s = SERVICE(u);
2661 if (streq(key, "state")) {
2664 state = service_state_from_string(value);
2666 log_debug_unit(u->id, "Failed to parse state value %s", value);
2668 s->deserialized_state = state;
2669 } else if (streq(key, "result")) {
2672 f = service_result_from_string(value);
2674 log_debug_unit(u->id, "Failed to parse result value %s", value);
2675 else if (f != SERVICE_SUCCESS)
2678 } else if (streq(key, "reload-result")) {
2681 f = service_result_from_string(value);
2683 log_debug_unit(u->id, "Failed to parse reload result value %s", value);
2684 else if (f != SERVICE_SUCCESS)
2685 s->reload_result = f;
2687 } else if (streq(key, "control-pid")) {
2690 if (parse_pid(value, &pid) < 0)
2691 log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
2693 s->control_pid = pid;
2694 } else if (streq(key, "main-pid")) {
2697 if (parse_pid(value, &pid) < 0)
2698 log_debug_unit(u->id, "Failed to parse main-pid value %s", value);
2700 service_set_main_pid(s, (pid_t) pid);
2701 } else if (streq(key, "main-pid-known")) {
2704 b = parse_boolean(value);
2706 log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
2708 s->main_pid_known = b;
2709 } else if (streq(key, "status-text")) {
2716 free(s->status_text);
2720 } else if (streq(key, "control-command")) {
2721 ServiceExecCommand id;
2723 id = service_exec_command_from_string(value);
2725 log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
2727 s->control_command_id = id;
2728 s->control_command = s->exec_command[id];
2730 } else if (streq(key, "socket-fd")) {
2733 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2734 log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
2737 if (s->socket_fd >= 0)
2738 close_nointr_nofail(s->socket_fd);
2739 s->socket_fd = fdset_remove(fds, fd);
2741 } else if (streq(key, "main-exec-status-pid")) {
2744 if (parse_pid(value, &pid) < 0)
2745 log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value);
2747 s->main_exec_status.pid = pid;
2748 } else if (streq(key, "main-exec-status-code")) {
2751 if (safe_atoi(value, &i) < 0)
2752 log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value);
2754 s->main_exec_status.code = i;
2755 } else if (streq(key, "main-exec-status-status")) {
2758 if (safe_atoi(value, &i) < 0)
2759 log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value);
2761 s->main_exec_status.status = i;
2762 } else if (streq(key, "main-exec-status-start"))
2763 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2764 else if (streq(key, "main-exec-status-exit"))
2765 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2766 else if (streq(key, "watchdog-timestamp"))
2767 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2768 else if (streq(key, "tmp-dir")) {
2775 s->exec_context.tmp_dir = t;
2776 } else if (streq(key, "var-tmp-dir")) {
2783 s->exec_context.var_tmp_dir = t;
2785 log_debug_unit(u->id, "Unknown serialization key '%s'", key);
2790 _pure_ static UnitActiveState service_active_state(Unit *u) {
2791 const UnitActiveState *table;
2795 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2797 return table[SERVICE(u)->state];
2800 static const char *service_sub_state_to_string(Unit *u) {
2803 return service_state_to_string(SERVICE(u)->state);
2806 static bool service_check_gc(Unit *u) {
2807 Service *s = SERVICE(u);
2811 /* Never clean up services that still have a process around,
2812 * even if the service is formally dead. */
2813 if (cgroup_good(s) > 0 ||
2814 main_pid_good(s) > 0 ||
2815 control_pid_good(s) > 0)
2818 #ifdef HAVE_SYSV_COMPAT
2826 _pure_ static bool service_check_snapshot(Unit *u) {
2827 Service *s = SERVICE(u);
2831 return !s->got_socket_fd;
2834 static int service_retry_pid_file(Service *s) {
2837 assert(s->pid_file);
2838 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2840 r = service_load_pid_file(s, false);
2844 service_unwatch_pid_file(s);
2846 service_enter_running(s, SERVICE_SUCCESS);
2850 static int service_watch_pid_file(Service *s) {
2853 log_debug_unit(UNIT(s)->id,
2854 "Setting watch for %s's PID file %s",
2855 UNIT(s)->id, s->pid_file_pathspec->path);
2856 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2860 /* the pidfile might have appeared just before we set the watch */
2861 log_debug_unit(UNIT(s)->id,
2862 "Trying to read %s's PID file %s in case it changed",
2863 UNIT(s)->id, s->pid_file_pathspec->path);
2864 service_retry_pid_file(s);
2868 log_error_unit(UNIT(s)->id,
2869 "Failed to set a watch for %s's PID file %s: %s",
2870 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2871 service_unwatch_pid_file(s);
2875 static int service_demand_pid_file(Service *s) {
2878 assert(s->pid_file);
2879 assert(!s->pid_file_pathspec);
2881 ps = new0(PathSpec, 1);
2885 ps->path = strdup(s->pid_file);
2891 path_kill_slashes(ps->path);
2893 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2894 * keep their PID file open all the time. */
2895 ps->type = PATH_MODIFIED;
2896 ps->inotify_fd = -1;
2898 s->pid_file_pathspec = ps;
2900 return service_watch_pid_file(s);
2903 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2904 Service *s = SERVICE(u);
2908 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2909 assert(s->pid_file_pathspec);
2910 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2912 log_debug_unit(u->id, "inotify event for %s", u->id);
2914 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2917 if (service_retry_pid_file(s) == 0)
2920 if (service_watch_pid_file(s) < 0)
2925 service_unwatch_pid_file(s);
2926 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2929 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2930 Service *s = SERVICE(u);
2936 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2937 is_clean_exit_lsb(code, status, &s->success_status))
2938 f = SERVICE_SUCCESS;
2939 else if (code == CLD_EXITED)
2940 f = SERVICE_FAILURE_EXIT_CODE;
2941 else if (code == CLD_KILLED)
2942 f = SERVICE_FAILURE_SIGNAL;
2943 else if (code == CLD_DUMPED)
2944 f = SERVICE_FAILURE_CORE_DUMP;
2946 assert_not_reached("Unknown code");
2948 if (s->main_pid == pid) {
2949 /* Forking services may occasionally move to a new PID.
2950 * As long as they update the PID file before exiting the old
2951 * PID, they're fine. */
2952 if (service_load_pid_file(s, false) == 0)
2956 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2958 if (s->main_command) {
2959 /* If this is not a forking service than the
2960 * main process got started and hence we copy
2961 * the exit status so that it is recorded both
2962 * as main and as control process exit
2965 s->main_command->exec_status = s->main_exec_status;
2967 if (s->main_command->ignore)
2968 f = SERVICE_SUCCESS;
2969 } else if (s->exec_command[SERVICE_EXEC_START]) {
2971 /* If this is a forked process, then we should
2972 * ignore the return value if this was
2973 * configured for the starter process */
2975 if (s->exec_command[SERVICE_EXEC_START]->ignore)
2976 f = SERVICE_SUCCESS;
2979 log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2981 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2982 u->id, sigchld_code_to_string(code), status,
2983 strna(code == CLD_EXITED
2984 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2985 : signal_to_string(status)),
2986 "EXIT_CODE=%s", sigchld_code_to_string(code),
2987 "EXIT_STATUS=%i", status,
2990 if (f != SERVICE_SUCCESS)
2993 if (s->main_command &&
2994 s->main_command->command_next &&
2995 f == SERVICE_SUCCESS) {
2997 /* There is another command to *
2998 * execute, so let's do that. */
3000 log_debug_unit(u->id,
3001 "%s running next main command for state %s",
3002 u->id, service_state_to_string(s->state));
3003 service_run_next_main(s);
3007 /* The service exited, so the service is officially
3009 s->main_command = NULL;
3013 case SERVICE_START_POST:
3014 case SERVICE_RELOAD:
3016 /* Need to wait until the operation is
3021 if (s->type == SERVICE_ONESHOT) {
3022 /* This was our main goal, so let's go on */
3023 if (f == SERVICE_SUCCESS)
3024 service_enter_start_post(s);
3026 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3032 case SERVICE_RUNNING:
3033 service_enter_running(s, f);
3036 case SERVICE_STOP_SIGTERM:
3037 case SERVICE_STOP_SIGKILL:
3039 if (!control_pid_good(s))
3040 service_enter_stop_post(s, f);
3042 /* If there is still a control process, wait for that first */
3046 assert_not_reached("Uh, main process died at wrong time.");
3050 } else if (s->control_pid == pid) {
3053 if (s->control_command) {
3054 exec_status_exit(&s->control_command->exec_status,
3055 &s->exec_context, pid, code, status);
3057 if (s->control_command->ignore)
3058 f = SERVICE_SUCCESS;
3061 log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
3062 "%s: control process exited, code=%s status=%i",
3063 u->id, sigchld_code_to_string(code), status);
3065 if (f != SERVICE_SUCCESS)
3068 /* Immediately get rid of the cgroup, so that the
3069 * kernel doesn't delay the cgroup empty messages for
3070 * the service cgroup any longer than necessary */
3071 service_kill_control_processes(s);
3073 if (s->control_command &&
3074 s->control_command->command_next &&
3075 f == SERVICE_SUCCESS) {
3077 /* There is another command to *
3078 * execute, so let's do that. */
3080 log_debug_unit(u->id,
3081 "%s running next control command for state %s",
3082 u->id, service_state_to_string(s->state));
3083 service_run_next_control(s);
3086 /* No further commands for this step, so let's
3087 * figure out what to do next */
3089 s->control_command = NULL;
3090 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3092 log_debug_unit(u->id,
3093 "%s got final SIGCHLD for state %s",
3094 u->id, service_state_to_string(s->state));
3098 case SERVICE_START_PRE:
3099 if (f == SERVICE_SUCCESS)
3100 service_enter_start(s);
3102 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3106 if (s->type != SERVICE_FORKING)
3107 /* Maybe spurious event due to a reload that changed the type? */
3110 if (f != SERVICE_SUCCESS) {
3111 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3116 bool has_start_post;
3119 /* Let's try to load the pid file here if we can.
3120 * The PID file might actually be created by a START_POST
3121 * script. In that case don't worry if the loading fails. */
3123 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3124 r = service_load_pid_file(s, !has_start_post);
3125 if (!has_start_post && r < 0) {
3126 r = service_demand_pid_file(s);
3127 if (r < 0 || !cgroup_good(s))
3128 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3132 service_search_main_pid(s);
3134 service_enter_start_post(s);
3137 case SERVICE_START_POST:
3138 if (f != SERVICE_SUCCESS) {
3139 service_enter_stop(s, f);
3146 r = service_load_pid_file(s, true);
3148 r = service_demand_pid_file(s);
3149 if (r < 0 || !cgroup_good(s))
3150 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3154 service_search_main_pid(s);
3156 service_enter_running(s, SERVICE_SUCCESS);
3159 case SERVICE_RELOAD:
3160 if (f == SERVICE_SUCCESS) {
3161 service_load_pid_file(s, true);
3162 service_search_main_pid(s);
3165 s->reload_result = f;
3166 service_enter_running(s, SERVICE_SUCCESS);
3170 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3173 case SERVICE_STOP_SIGTERM:
3174 case SERVICE_STOP_SIGKILL:
3175 if (main_pid_good(s) <= 0)
3176 service_enter_stop_post(s, f);
3178 /* If there is still a service
3179 * process around, wait until
3180 * that one quit, too */
3183 case SERVICE_STOP_POST:
3184 case SERVICE_FINAL_SIGTERM:
3185 case SERVICE_FINAL_SIGKILL:
3186 service_enter_dead(s, f, true);
3190 assert_not_reached("Uh, control process died at wrong time.");
3195 /* Notify clients about changed exit status */
3196 unit_add_to_dbus_queue(u);
3199 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3200 Service *s = SERVICE(u);
3203 assert(elapsed == 1);
3205 if (w == &s->watchdog_watch) {
3206 service_handle_watchdog(s);
3210 assert(w == &s->timer_watch);
3214 case SERVICE_START_PRE:
3216 log_warning_unit(u->id,
3217 "%s operation timed out. Terminating.", u->id);
3218 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3221 case SERVICE_START_POST:
3222 log_warning_unit(u->id,
3223 "%s operation timed out. Stopping.", u->id);
3224 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3227 case SERVICE_RELOAD:
3228 log_warning_unit(u->id,
3229 "%s operation timed out. Stopping.", u->id);
3230 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3231 service_enter_running(s, SERVICE_SUCCESS);
3235 log_warning_unit(u->id,
3236 "%s stopping timed out. Terminating.", u->id);
3237 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3240 case SERVICE_STOP_SIGTERM:
3241 if (s->kill_context.send_sigkill) {
3242 log_warning_unit(u->id,
3243 "%s stopping timed out. Killing.", u->id);
3244 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3246 log_warning_unit(u->id,
3247 "%s stopping timed out. Skipping SIGKILL.", u->id);
3248 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3253 case SERVICE_STOP_SIGKILL:
3254 /* Uh, we sent a SIGKILL and it is still not gone?
3255 * Must be something we cannot kill, so let's just be
3256 * weirded out and continue */
3258 log_warning_unit(u->id,
3259 "%s still around after SIGKILL. Ignoring.", u->id);
3260 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3263 case SERVICE_STOP_POST:
3264 log_warning_unit(u->id,
3265 "%s stopping timed out (2). Terminating.", u->id);
3266 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3269 case SERVICE_FINAL_SIGTERM:
3270 if (s->kill_context.send_sigkill) {
3271 log_warning_unit(u->id,
3272 "%s stopping timed out (2). Killing.", u->id);
3273 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3275 log_warning_unit(u->id,
3276 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3278 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3283 case SERVICE_FINAL_SIGKILL:
3284 log_warning_unit(u->id,
3285 "%s still around after SIGKILL (2). Entering failed mode.", u->id);
3286 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3289 case SERVICE_AUTO_RESTART:
3290 log_info_unit(u->id,
3291 "%s holdoff time over, scheduling restart.", u->id);
3292 service_enter_restart(s);
3296 assert_not_reached("Timeout at wrong time.");
3300 static void service_notify_cgroup_empty_event(Unit *u) {
3301 Service *s = SERVICE(u);
3305 log_debug_unit(u->id, "%s: cgroup is empty", u->id);
3309 /* Waiting for SIGCHLD is usually more interesting,
3310 * because it includes return codes/signals. Which is
3311 * why we ignore the cgroup events for most cases,
3312 * except when we don't know pid which to expect the
3316 case SERVICE_START_POST:
3317 /* If we were hoping for the daemon to write its PID file,
3318 * we can give up now. */
3319 if (s->pid_file_pathspec) {
3320 log_warning_unit(u->id,
3321 "%s never wrote its PID file. Failing.", UNIT(s)->id);
3322 service_unwatch_pid_file(s);
3323 if (s->state == SERVICE_START)
3324 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3326 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3330 case SERVICE_RUNNING:
3331 /* service_enter_running() will figure out what to do */
3332 service_enter_running(s, SERVICE_SUCCESS);
3335 case SERVICE_STOP_SIGTERM:
3336 case SERVICE_STOP_SIGKILL:
3338 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3339 service_enter_stop_post(s, SERVICE_SUCCESS);
3343 case SERVICE_FINAL_SIGTERM:
3344 case SERVICE_FINAL_SIGKILL:
3345 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3346 service_enter_dead(s, SERVICE_SUCCESS, true);
3355 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3356 Service *s = SERVICE(u);
3361 if (s->notify_access == NOTIFY_NONE) {
3362 log_warning_unit(u->id,
3363 "%s: Got notification message from PID %lu, but reception is disabled.",
3364 u->id, (unsigned long) pid);
3368 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3369 log_warning_unit(u->id,
3370 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3371 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3375 log_debug_unit(u->id,
3376 "%s: Got message", u->id);
3378 /* Interpret MAINPID= */
3379 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3380 (s->state == SERVICE_START ||
3381 s->state == SERVICE_START_POST ||
3382 s->state == SERVICE_RUNNING ||
3383 s->state == SERVICE_RELOAD)) {
3385 if (parse_pid(e + 8, &pid) < 0)
3386 log_warning_unit(u->id,
3387 "Failed to parse notification message %s", e);
3389 log_debug_unit(u->id,
3390 "%s: got %s", u->id, e);
3391 service_set_main_pid(s, pid);
3395 /* Interpret READY= */
3396 if (s->type == SERVICE_NOTIFY &&
3397 s->state == SERVICE_START &&
3398 strv_find(tags, "READY=1")) {
3399 log_debug_unit(u->id,
3400 "%s: got READY=1", u->id);
3402 service_enter_start_post(s);
3405 /* Interpret STATUS= */
3406 e = strv_find_prefix(tags, "STATUS=");
3412 if (!utf8_is_valid(e+7)) {
3413 log_warning_unit(u->id,
3414 "Status message in notification is not UTF-8 clean.");
3420 log_error_unit(u->id,
3421 "Failed to allocate string.");
3425 log_debug_unit(u->id,
3426 "%s: got %s", u->id, e);
3428 free(s->status_text);
3431 free(s->status_text);
3432 s->status_text = NULL;
3436 if (strv_find(tags, "WATCHDOG=1")) {
3437 log_debug_unit(u->id,
3438 "%s: got WATCHDOG=1", u->id);
3439 if (dual_timestamp_is_set(&s->watchdog_timestamp))
3440 service_reset_watchdog(s);
3443 /* Notify clients about changed status or main pid */
3444 unit_add_to_dbus_queue(u);
3447 #ifdef HAVE_SYSV_COMPAT
3449 static int service_enumerate(Manager *m) {
3452 _cleanup_closedir_ DIR *d = NULL;
3453 _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL;
3454 Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {};
3455 _cleanup_set_free_ Set *shutdown_services = NULL;
3462 if (m->running_as != SYSTEMD_SYSTEM)
3465 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3466 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3470 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3481 if (errno != ENOENT)
3482 log_warning("opendir(%s) failed: %s", path, strerror(errno));
3487 while ((de = readdir(d))) {
3490 if (ignore_file(de->d_name))
3493 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3496 if (strlen(de->d_name) < 4)
3499 a = undecchar(de->d_name[1]);
3500 b = undecchar(de->d_name[2]);
3506 fpath = strjoin(path, "/", de->d_name, NULL);
3512 if (access(fpath, X_OK) < 0) {
3514 if (errno != ENOENT)
3515 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3521 name = sysv_translate_name(de->d_name + 3);
3527 r = manager_load_unit_prepare(m, name, NULL, NULL, &service);
3529 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3533 if (de->d_name[0] == 'S') {
3535 if (rcnd_table[i].type == RUNLEVEL_UP) {
3536 SERVICE(service)->sysv_start_priority_from_rcnd =
3537 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3539 SERVICE(service)->sysv_enabled = true;
3542 r = set_ensure_allocated(&runlevel_services[i],
3543 trivial_hash_func, trivial_compare_func);
3547 r = set_put(runlevel_services[i], service);
3551 } else if (de->d_name[0] == 'K' &&
3552 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3554 r = set_ensure_allocated(&shutdown_services,
3555 trivial_hash_func, trivial_compare_func);
3559 r = set_put(shutdown_services, service);
3566 /* Now we loaded all stubs and are aware of the lowest
3567 start-up priority for all services, not let's actually load
3568 the services, this will also tell us which services are
3569 actually native now */
3570 manager_dispatch_load_queue(m);
3572 /* If this is a native service, rely on native ways to pull in
3573 * a service, don't pull it in via sysv rcN.d links. */
3574 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3575 SET_FOREACH(service, runlevel_services[i], j) {
3576 service = unit_follow_merge(service);
3578 if (service->fragment_path)
3581 r = unit_add_two_dependencies_by_name_inverse(
3582 service, UNIT_AFTER, UNIT_WANTS,
3583 rcnd_table[i].target, NULL, true);
3588 /* We honour K links only for halt/reboot. For the normal
3589 * runlevels we assume the stop jobs will be implicitly added
3590 * by the core logic. Also, we don't really distinguish here
3591 * between the runlevels 0 and 6 and just add them to the
3592 * special shutdown target. */
3593 SET_FOREACH(service, shutdown_services, j) {
3594 service = unit_follow_merge(service);
3596 if (service->fragment_path)
3599 r = unit_add_two_dependencies_by_name(
3600 service, UNIT_BEFORE, UNIT_CONFLICTS,
3601 SPECIAL_SHUTDOWN_TARGET, NULL, true);
3610 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3611 set_free(runlevel_services[i]);
3617 static void service_bus_name_owner_change(
3620 const char *old_owner,
3621 const char *new_owner) {
3623 Service *s = SERVICE(u);
3628 assert(streq(s->bus_name, name));
3629 assert(old_owner || new_owner);
3631 if (old_owner && new_owner)
3632 log_debug_unit(u->id,
3633 "%s's D-Bus name %s changed owner from %s to %s",
3634 u->id, name, old_owner, new_owner);
3636 log_debug_unit(u->id,
3637 "%s's D-Bus name %s no longer registered by %s",
3638 u->id, name, old_owner);
3640 log_debug_unit(u->id,
3641 "%s's D-Bus name %s now registered by %s",
3642 u->id, name, new_owner);
3644 s->bus_name_good = !!new_owner;
3646 if (s->type == SERVICE_DBUS) {
3648 /* service_enter_running() will figure out what to
3650 if (s->state == SERVICE_RUNNING)
3651 service_enter_running(s, SERVICE_SUCCESS);
3652 else if (s->state == SERVICE_START && new_owner)
3653 service_enter_start_post(s);
3655 } else if (new_owner &&
3657 (s->state == SERVICE_START ||
3658 s->state == SERVICE_START_POST ||
3659 s->state == SERVICE_RUNNING ||
3660 s->state == SERVICE_RELOAD)) {
3662 /* Try to acquire PID from bus service */
3663 log_debug_unit(u->id,
3664 "Trying to acquire PID from D-Bus name...");
3666 bus_query_pid(u->manager, name);
3670 static void service_bus_query_pid_done(
3675 Service *s = SERVICE(u);
3680 log_debug_unit(u->id,
3681 "%s's D-Bus name %s is now owned by process %u",
3682 u->id, name, (unsigned) pid);
3684 if (s->main_pid <= 0 &&
3685 (s->state == SERVICE_START ||
3686 s->state == SERVICE_START_POST ||
3687 s->state == SERVICE_RUNNING ||
3688 s->state == SERVICE_RELOAD))
3689 service_set_main_pid(s, pid);
3692 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3697 /* This is called by the socket code when instantiating a new
3698 * service for a stream socket and the socket needs to be
3701 if (UNIT(s)->load_state != UNIT_LOADED)
3704 if (s->socket_fd >= 0)
3707 if (s->state != SERVICE_DEAD)
3711 s->got_socket_fd = true;
3713 unit_ref_set(&s->accept_socket, UNIT(sock));
3715 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3718 static void service_reset_failed(Unit *u) {
3719 Service *s = SERVICE(u);
3723 if (s->state == SERVICE_FAILED)
3724 service_set_state(s, SERVICE_DEAD);
3726 s->result = SERVICE_SUCCESS;
3727 s->reload_result = SERVICE_SUCCESS;
3729 RATELIMIT_RESET(s->start_limit);
3732 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3733 Service *s = SERVICE(u);
3735 return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
3738 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3739 [SERVICE_DEAD] = "dead",
3740 [SERVICE_START_PRE] = "start-pre",
3741 [SERVICE_START] = "start",
3742 [SERVICE_START_POST] = "start-post",
3743 [SERVICE_RUNNING] = "running",
3744 [SERVICE_EXITED] = "exited",
3745 [SERVICE_RELOAD] = "reload",
3746 [SERVICE_STOP] = "stop",
3747 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3748 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3749 [SERVICE_STOP_POST] = "stop-post",
3750 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3751 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3752 [SERVICE_FAILED] = "failed",
3753 [SERVICE_AUTO_RESTART] = "auto-restart",
3756 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3758 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3759 [SERVICE_RESTART_NO] = "no",
3760 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3761 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3762 [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog",
3763 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3764 [SERVICE_RESTART_ALWAYS] = "always"
3767 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3769 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3770 [SERVICE_SIMPLE] = "simple",
3771 [SERVICE_FORKING] = "forking",
3772 [SERVICE_ONESHOT] = "oneshot",
3773 [SERVICE_DBUS] = "dbus",
3774 [SERVICE_NOTIFY] = "notify",
3775 [SERVICE_IDLE] = "idle"
3778 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3780 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3781 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3782 [SERVICE_EXEC_START] = "ExecStart",
3783 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3784 [SERVICE_EXEC_RELOAD] = "ExecReload",
3785 [SERVICE_EXEC_STOP] = "ExecStop",
3786 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3789 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3791 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3792 [NOTIFY_NONE] = "none",
3793 [NOTIFY_MAIN] = "main",
3794 [NOTIFY_ALL] = "all"
3797 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3799 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3800 [SERVICE_SUCCESS] = "success",
3801 [SERVICE_FAILURE_RESOURCES] = "resources",
3802 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3803 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3804 [SERVICE_FAILURE_SIGNAL] = "signal",
3805 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3806 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3807 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3810 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3812 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3813 [SERVICE_START_LIMIT_NONE] = "none",
3814 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3815 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3816 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3818 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3820 const UnitVTable service_vtable = {
3821 .object_size = sizeof(Service),
3828 .private_section = "Service",
3829 .exec_context_offset = offsetof(Service, exec_context),
3830 .cgroup_context_offset = offsetof(Service, cgroup_context),
3832 .init = service_init,
3833 .done = service_done,
3834 .load = service_load,
3836 .coldplug = service_coldplug,
3838 .dump = service_dump,
3840 .start = service_start,
3841 .stop = service_stop,
3842 .reload = service_reload,
3844 .can_reload = service_can_reload,
3846 .kill = service_kill,
3848 .serialize = service_serialize,
3849 .deserialize_item = service_deserialize_item,
3851 .active_state = service_active_state,
3852 .sub_state_to_string = service_sub_state_to_string,
3854 .check_gc = service_check_gc,
3855 .check_snapshot = service_check_snapshot,
3857 .sigchld_event = service_sigchld_event,
3858 .timer_event = service_timer_event,
3859 .fd_event = service_fd_event,
3861 .reset_failed = service_reset_failed,
3863 .notify_cgroup_empty = service_notify_cgroup_empty_event,
3864 .notify_message = service_notify_message,
3866 .bus_name_owner_change = service_bus_name_owner_change,
3867 .bus_query_pid_done = service_bus_query_pid_done,
3869 .bus_interface = "org.freedesktop.systemd1.Service",
3870 .bus_message_handler = bus_service_message_handler,
3871 .bus_invalidating_properties = bus_service_invalidating_properties,
3872 .bus_set_property = bus_service_set_property,
3873 .bus_commit_properties = bus_service_commit_properties,
3875 .can_transient = true,
3877 #ifdef HAVE_SYSV_COMPAT
3878 .enumerate = service_enumerate,
3880 .status_message_formats = {
3881 .starting_stopping = {
3882 [0] = "Starting %s...",
3883 [1] = "Stopping %s...",
3885 .finished_start_job = {
3886 [JOB_DONE] = "Started %s.",
3887 [JOB_FAILED] = "Failed to start %s.",
3888 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3889 [JOB_TIMEOUT] = "Timed out starting %s.",
3891 .finished_stop_job = {
3892 [JOB_DONE] = "Stopped %s.",
3893 [JOB_FAILED] = "Stopped (with error) %s.",
3894 [JOB_TIMEOUT] = "Timed out stopping %s.",