1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/reboot.h>
31 #include "load-fragment.h"
32 #include "load-dropin.h"
35 #include "unit-name.h"
36 #include "dbus-service.h"
38 #include "bus-errors.h"
39 #include "exit-status.h"
41 #include "path-util.h"
45 #ifdef HAVE_SYSV_COMPAT
47 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
49 typedef enum RunlevelType {
58 const RunlevelType type;
60 /* Standard SysV runlevels for start-up */
61 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
62 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
63 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
64 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
65 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
68 /* SUSE style boot.d */
69 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
72 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
73 /* Debian style rcS.d */
74 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
77 /* Standard SysV runlevels for shutdown */
78 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
79 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
81 /* Note that the order here matters, as we read the
82 directories in this order, and we want to make sure that
83 sysv_start_priority is known when we first load the
84 unit. And that value we only know from S links. Hence
85 UP/SYSINIT must be read before DOWN */
88 #define RUNLEVELS_UP "12345"
89 /* #define RUNLEVELS_DOWN "06" */
90 #define RUNLEVELS_BOOT "bBsS"
93 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
94 [SERVICE_DEAD] = UNIT_INACTIVE,
95 [SERVICE_START_PRE] = UNIT_ACTIVATING,
96 [SERVICE_START] = UNIT_ACTIVATING,
97 [SERVICE_START_POST] = UNIT_ACTIVATING,
98 [SERVICE_RUNNING] = UNIT_ACTIVE,
99 [SERVICE_EXITED] = UNIT_ACTIVE,
100 [SERVICE_RELOAD] = UNIT_RELOADING,
101 [SERVICE_STOP] = UNIT_DEACTIVATING,
102 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
103 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
104 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
105 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
106 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
107 [SERVICE_FAILED] = UNIT_FAILED,
108 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
111 /* For Type=idle we never want to delay any other jobs, hence we
112 * consider idle jobs active as soon as we start working on them */
113 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
114 [SERVICE_DEAD] = UNIT_INACTIVE,
115 [SERVICE_START_PRE] = UNIT_ACTIVE,
116 [SERVICE_START] = UNIT_ACTIVE,
117 [SERVICE_START_POST] = UNIT_ACTIVE,
118 [SERVICE_RUNNING] = UNIT_ACTIVE,
119 [SERVICE_EXITED] = UNIT_ACTIVE,
120 [SERVICE_RELOAD] = UNIT_RELOADING,
121 [SERVICE_STOP] = UNIT_DEACTIVATING,
122 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
123 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
124 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
125 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
126 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
127 [SERVICE_FAILED] = UNIT_FAILED,
128 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
131 static void service_init(Unit *u) {
132 Service *s = SERVICE(u);
135 assert(u->load_state == UNIT_STUB);
137 s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
138 s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
139 s->restart_usec = DEFAULT_RESTART_USEC;
140 s->type = _SERVICE_TYPE_INVALID;
142 s->watchdog_watch.type = WATCH_INVALID;
144 s->timer_watch.type = WATCH_INVALID;
145 #ifdef HAVE_SYSV_COMPAT
146 s->sysv_start_priority = -1;
147 s->sysv_start_priority_from_rcnd = -1;
150 s->guess_main_pid = true;
152 exec_context_init(&s->exec_context);
153 kill_context_init(&s->kill_context);
155 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
157 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
160 static void service_unwatch_control_pid(Service *s) {
163 if (s->control_pid <= 0)
166 unit_unwatch_pid(UNIT(s), s->control_pid);
170 static void service_unwatch_main_pid(Service *s) {
173 if (s->main_pid <= 0)
176 unit_unwatch_pid(UNIT(s), s->main_pid);
180 static void service_unwatch_pid_file(Service *s) {
181 if (!s->pid_file_pathspec)
184 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
185 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
186 path_spec_done(s->pid_file_pathspec);
187 free(s->pid_file_pathspec);
188 s->pid_file_pathspec = NULL;
191 static int service_set_main_pid(Service *s, pid_t pid) {
203 s->main_pid_known = true;
205 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
206 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
207 UNIT(s)->id, (unsigned long) pid);
209 s->main_pid_alien = true;
211 s->main_pid_alien = false;
213 exec_status_start(&s->main_exec_status, pid);
218 static void service_close_socket_fd(Service *s) {
221 if (s->socket_fd < 0)
224 close_nointr_nofail(s->socket_fd);
228 static void service_connection_unref(Service *s) {
231 if (!UNIT_DEREF(s->accept_socket))
234 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
235 unit_ref_unset(&s->accept_socket);
238 static void service_stop_watchdog(Service *s) {
241 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
242 s->watchdog_timestamp.realtime = 0;
243 s->watchdog_timestamp.monotonic = 0;
246 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
248 static void service_handle_watchdog(Service *s) {
254 if (s->watchdog_usec == 0)
257 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
258 if (offset >= s->watchdog_usec) {
259 log_error("%s watchdog timeout!", UNIT(s)->id);
260 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
264 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
266 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
269 static void service_reset_watchdog(Service *s) {
272 dual_timestamp_get(&s->watchdog_timestamp);
273 service_handle_watchdog(s);
276 static void service_done(Unit *u) {
277 Service *s = SERVICE(u);
284 #ifdef HAVE_SYSV_COMPAT
285 free(s->sysv_runlevels);
286 s->sysv_runlevels = NULL;
289 free(s->status_text);
290 s->status_text = NULL;
292 exec_context_done(&s->exec_context);
293 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
294 s->control_command = NULL;
295 s->main_command = NULL;
297 /* This will leak a process, but at least no memory or any of
299 service_unwatch_main_pid(s);
300 service_unwatch_control_pid(s);
301 service_unwatch_pid_file(s);
304 unit_unwatch_bus_name(u, s->bus_name);
309 service_close_socket_fd(s);
310 service_connection_unref(s);
312 unit_ref_unset(&s->accept_socket);
314 service_stop_watchdog(s);
316 unit_unwatch_timer(u, &s->timer_watch);
319 #ifdef HAVE_SYSV_COMPAT
320 static char *sysv_translate_name(const char *name) {
323 if (!(r = new(char, strlen(name) + sizeof(".service"))))
326 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
327 if (endswith(name, ".sh"))
328 /* Drop Debian-style .sh suffix */
329 strcpy(stpcpy(r, name) - 3, ".service");
332 if (startswith(name, "boot."))
333 /* Drop SuSE-style boot. prefix */
334 strcpy(stpcpy(r, name + 5), ".service");
336 #ifdef TARGET_FRUGALWARE
337 if (startswith(name, "rc."))
338 /* Drop Frugalware-style rc. prefix */
339 strcpy(stpcpy(r, name + 3), ".service");
342 /* Normal init scripts */
343 strcpy(stpcpy(r, name), ".service");
348 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
350 /* We silently ignore the $ prefix here. According to the LSB
351 * spec it simply indicates whether something is a
352 * standardized name or a distribution-specific one. Since we
353 * just follow what already exists and do not introduce new
354 * uses or names we don't care who introduced a new name. */
356 static const char * const table[] = {
357 /* LSB defined facilities */
358 "local_fs", SPECIAL_LOCAL_FS_TARGET,
359 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
361 /* Due to unfortunate name selection in Mandriva,
362 * $network is provided by network-up which is ordered
363 * after network which actually starts interfaces.
364 * To break the loop, just ignore it */
365 "network", SPECIAL_NETWORK_TARGET,
367 "named", SPECIAL_NSS_LOOKUP_TARGET,
368 "portmap", SPECIAL_RPCBIND_TARGET,
369 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
370 "syslog", SPECIAL_SYSLOG_TARGET,
371 "time", SPECIAL_TIME_SYNC_TARGET,
373 /* common extensions */
374 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
375 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
378 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
379 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
383 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
384 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
385 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
389 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
400 n = *name == '$' ? name + 1 : name;
402 for (i = 0; i < ELEMENTSOF(table); i += 2) {
404 if (!streq(table[i], n))
410 if (!(r = strdup(table[i+1])))
416 /* If we don't know this name, fallback heuristics to figure
417 * out whether something is a target or a service alias. */
420 if (!unit_prefix_is_valid(n))
423 /* Facilities starting with $ are most likely targets */
424 r = unit_name_build(n, NULL, ".target");
425 } else if (filename && streq(name, filename))
426 /* Names equaling the file name of the services are redundant */
429 /* Everything else we assume to be normal service names */
430 r = sysv_translate_name(n);
441 static int sysv_fix_order(Service *s) {
447 if (s->sysv_start_priority < 0)
450 /* For each pair of services where at least one lacks a LSB
451 * header, we use the start priority value to order things. */
453 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
456 bool special_s, special_t;
463 if (UNIT(t)->load_state != UNIT_LOADED)
466 if (t->sysv_start_priority < 0)
469 /* If both units have modern headers we don't care
470 * about the priorities */
471 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
472 (UNIT(t)->fragment_path || t->sysv_has_lsb))
475 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
476 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
478 if (special_t && !special_s)
480 else if (special_s && !special_t)
482 else if (t->sysv_start_priority < s->sysv_start_priority)
484 else if (t->sysv_start_priority > s->sysv_start_priority)
489 /* FIXME: Maybe we should compare the name here lexicographically? */
491 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
498 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
501 if (!(c = new0(ExecCommand, 1)))
504 if (!(c->path = strdup(path))) {
509 if (!(c->argv = strv_new(path, arg1, NULL))) {
518 static int sysv_exec_commands(Service *s) {
523 assert(UNIT(s)->source_path);
525 c = exec_command_new(UNIT(s)->source_path, "start");
528 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
530 c = exec_command_new(UNIT(s)->source_path, "stop");
533 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
535 c = exec_command_new(UNIT(s)->source_path, "reload");
538 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
543 static int service_load_sysv_path(Service *s, const char *path) {
554 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
562 f = fopen(path, "re");
564 r = errno == ENOENT ? 0 : -errno;
568 if (fstat(fileno(f), &st) < 0) {
573 free(u->source_path);
574 u->source_path = strdup(path);
575 if (!u->source_path) {
579 u->source_mtime = timespec_load(&st.st_mtim);
581 if (null_or_empty(&st)) {
582 u->load_state = UNIT_MASKED;
590 char l[LINE_MAX], *t;
592 if (!fgets(l, sizeof(l), f)) {
597 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
607 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
609 s->sysv_has_lsb = true;
613 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
619 t += strspn(t, WHITESPACE);
621 if (state == NORMAL) {
623 /* Try to parse Red Hat style chkconfig headers */
625 if (startswith_no_case(t, "chkconfig:")) {
627 char runlevels[16], *k;
631 if (sscanf(t+10, "%15s %i %*i",
633 &start_priority) != 2) {
635 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
639 /* A start priority gathered from the
640 * symlink farms is preferred over the
641 * data from the LSB header. */
642 if (start_priority < 0 || start_priority > 99)
643 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
645 s->sysv_start_priority = start_priority;
647 char_array_0(runlevels);
648 k = delete_chars(runlevels, WHITESPACE "-");
653 if (!(d = strdup(k))) {
658 free(s->sysv_runlevels);
659 s->sysv_runlevels = d;
662 } else if (startswith_no_case(t, "description:")) {
664 size_t k = strlen(t);
668 if (t[k-1] == '\\') {
673 if ((j = strstrip(t+12)) && *j) {
674 if (!(d = strdup(j))) {
681 free(chkconfig_description);
682 chkconfig_description = d;
684 } else if (startswith_no_case(t, "pidfile:")) {
691 if (!path_is_absolute(fn)) {
692 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
696 if (!(fn = strdup(fn))) {
705 } else if (state == DESCRIPTION) {
707 /* Try to parse Red Hat style description
710 size_t k = strlen(t);
718 if ((j = strstrip(t)) && *j) {
721 if (chkconfig_description)
722 d = strjoin(chkconfig_description, " ", j, NULL);
731 free(chkconfig_description);
732 chkconfig_description = d;
735 } else if (state == LSB || state == LSB_DESCRIPTION) {
737 if (startswith_no_case(t, "Provides:")) {
743 FOREACH_WORD_QUOTED(w, z, t+9, i) {
746 if (!(n = strndup(w, z))) {
751 r = sysv_translate_facility(n, path_get_file_name(path), &m);
760 if (unit_name_to_type(m) == UNIT_SERVICE)
761 r = unit_add_name(u, m);
768 * indication that the
770 * now available. This
773 * targets do NOT pull
776 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
779 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
784 } else if (startswith_no_case(t, "Required-Start:") ||
785 startswith_no_case(t, "Should-Start:") ||
786 startswith_no_case(t, "X-Start-Before:") ||
787 startswith_no_case(t, "X-Start-After:")) {
793 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
796 if (!(n = strndup(w, z))) {
801 r = sysv_translate_facility(n, path_get_file_name(path), &m);
804 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
814 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
817 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
821 } else if (startswith_no_case(t, "Default-Start:")) {
826 k = delete_chars(t+14, WHITESPACE "-");
829 if (!(d = strdup(k))) {
834 free(s->sysv_runlevels);
835 s->sysv_runlevels = d;
838 } else if (startswith_no_case(t, "Description:")) {
841 state = LSB_DESCRIPTION;
843 if ((j = strstrip(t+12)) && *j) {
844 if (!(d = strdup(j))) {
851 free(long_description);
852 long_description = d;
854 } else if (startswith_no_case(t, "Short-Description:")) {
859 if ((j = strstrip(t+18)) && *j) {
860 if (!(d = strdup(j))) {
867 free(short_description);
868 short_description = d;
870 } else if (state == LSB_DESCRIPTION) {
872 if (startswith(l, "#\t") || startswith(l, "# ")) {
875 if ((j = strstrip(t)) && *j) {
878 if (long_description)
879 d = strjoin(long_description, " ", t, NULL);
888 free(long_description);
889 long_description = d;
898 if ((r = sysv_exec_commands(s)) < 0)
900 if (s->sysv_runlevels &&
901 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
902 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
903 /* Service has both boot and "up" runlevels
904 configured. Kill the "up" ones. */
905 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
908 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
909 /* If there a runlevels configured for this service
910 * but none of the standard ones, then we assume this
911 * is some special kind of service (which might be
912 * needed for early boot) and don't create any links
915 UNIT(s)->default_dependencies = false;
917 /* Don't timeout special services during boot (like fsck) */
918 s->timeout_start_usec = 0;
919 s->timeout_stop_usec = 0;
921 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
922 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
926 /* Special setting for all SysV services */
927 s->type = SERVICE_FORKING;
928 s->remain_after_exit = !s->pid_file;
929 s->guess_main_pid = false;
930 s->restart = SERVICE_RESTART_NO;
931 s->exec_context.ignore_sigpipe = false;
932 s->kill_context.kill_mode = KILL_PROCESS;
934 /* We use the long description only if
935 * no short description is set. */
937 if (short_description)
938 description = short_description;
939 else if (chkconfig_description)
940 description = chkconfig_description;
941 else if (long_description)
942 description = long_description;
949 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
957 /* The priority that has been set in /etc/rcN.d/ hierarchies
958 * takes precedence over what is stored as default in the LSB
960 if (s->sysv_start_priority_from_rcnd >= 0)
961 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
963 u->load_state = UNIT_LOADED;
971 free(short_description);
972 free(long_description);
973 free(chkconfig_description);
978 static int service_load_sysv_name(Service *s, const char *name) {
984 /* For SysV services we strip the boot.*, rc.* and *.sh
985 * prefixes/suffixes. */
986 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
987 if (endswith(name, ".sh.service"))
992 if (startswith(name, "boot."))
996 #ifdef TARGET_FRUGALWARE
997 if (startswith(name, "rc."))
1001 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
1005 path = strjoin(*p, "/", name, NULL);
1009 assert(endswith(path, ".service"));
1010 path[strlen(path)-8] = 0;
1012 r = service_load_sysv_path(s, path);
1014 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1015 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1016 /* Try Debian style *.sh source'able init scripts */
1017 strcat(path, ".sh");
1018 r = service_load_sysv_path(s, path);
1024 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1025 /* Try SUSE style boot.* init scripts */
1027 path = strjoin(*p, "/boot.", name, NULL);
1031 /* Drop .service suffix */
1032 path[strlen(path)-8] = 0;
1033 r = service_load_sysv_path(s, path);
1038 #ifdef TARGET_FRUGALWARE
1039 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1040 /* Try Frugalware style rc.* init scripts */
1042 path = strjoin(*p, "/rc.", name, NULL);
1046 /* Drop .service suffix */
1047 path[strlen(path)-8] = 0;
1048 r = service_load_sysv_path(s, path);
1056 if ((UNIT(s)->load_state != UNIT_STUB))
1063 static int service_load_sysv(Service *s) {
1070 /* Load service data from SysV init scripts, preferably with
1071 * LSB headers ... */
1073 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1076 if ((t = UNIT(s)->id))
1077 if ((r = service_load_sysv_name(s, t)) < 0)
1080 if (UNIT(s)->load_state == UNIT_STUB)
1081 SET_FOREACH(t, UNIT(s)->names, i) {
1082 if (t == UNIT(s)->id)
1085 if ((r = service_load_sysv_name(s, t)) < 0)
1088 if (UNIT(s)->load_state != UNIT_STUB)
1096 static int fsck_fix_order(Service *s) {
1102 if (s->fsck_passno <= 0)
1105 /* For each pair of services where both have an fsck priority
1106 * we order things based on it. */
1108 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1117 if (UNIT(t)->load_state != UNIT_LOADED)
1120 if (t->fsck_passno <= 0)
1123 if (t->fsck_passno < s->fsck_passno)
1125 else if (t->fsck_passno > s->fsck_passno)
1130 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1137 static int service_verify(Service *s) {
1140 if (UNIT(s)->load_state != UNIT_LOADED)
1143 if (!s->exec_command[SERVICE_EXEC_START]) {
1144 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1148 if (s->type != SERVICE_ONESHOT &&
1149 s->exec_command[SERVICE_EXEC_START]->command_next) {
1150 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1154 if (s->type == SERVICE_ONESHOT &&
1155 s->exec_command[SERVICE_EXEC_RELOAD]) {
1156 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1160 if (s->type == SERVICE_DBUS && !s->bus_name) {
1161 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1165 if (s->bus_name && s->type != SERVICE_DBUS)
1166 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1168 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1169 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1176 static int service_add_default_dependencies(Service *s) {
1181 /* Add a number of automatic dependencies useful for the
1182 * majority of services. */
1184 /* First, pull in base system */
1185 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
1187 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1190 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
1192 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1196 /* Second, activate normal shutdown */
1197 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1200 static void service_fix_output(Service *s) {
1203 /* If nothing has been explicitly configured, patch default
1204 * output in. If input is socket/tty we avoid this however,
1205 * since in that case we want output to default to the same
1206 * place as we read input from. */
1208 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1209 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1210 s->exec_context.std_input == EXEC_INPUT_NULL)
1211 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1213 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1214 s->exec_context.std_input == EXEC_INPUT_NULL)
1215 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1218 static int service_load(Unit *u) {
1220 Service *s = SERVICE(u);
1224 /* Load a .service file */
1225 if ((r = unit_load_fragment(u)) < 0)
1228 #ifdef HAVE_SYSV_COMPAT
1229 /* Load a classic init script as a fallback, if we couldn't find anything */
1230 if (u->load_state == UNIT_STUB)
1231 if ((r = service_load_sysv(s)) < 0)
1235 /* Still nothing found? Then let's give up */
1236 if (u->load_state == UNIT_STUB)
1239 /* We were able to load something, then let's add in the
1240 * dropin directories. */
1241 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1244 /* This is a new unit? Then let's add in some extras */
1245 if (u->load_state == UNIT_LOADED) {
1246 if (s->type == _SERVICE_TYPE_INVALID)
1247 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1249 /* Oneshot services have disabled start timeout by default */
1250 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1251 s->timeout_start_usec = 0;
1253 service_fix_output(s);
1255 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1258 if ((r = unit_add_default_cgroups(u)) < 0)
1261 #ifdef HAVE_SYSV_COMPAT
1262 if ((r = sysv_fix_order(s)) < 0)
1266 if ((r = fsck_fix_order(s)) < 0)
1270 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1273 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1274 s->notify_access = NOTIFY_MAIN;
1276 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1277 s->notify_access = NOTIFY_MAIN;
1279 if (s->type == SERVICE_DBUS || s->bus_name)
1280 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1283 if (UNIT(s)->default_dependencies)
1284 if ((r = service_add_default_dependencies(s)) < 0)
1287 r = unit_exec_context_defaults(u, &s->exec_context);
1292 return service_verify(s);
1295 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1297 ServiceExecCommand c;
1298 Service *s = SERVICE(u);
1299 const char *prefix2;
1304 p2 = strappend(prefix, "\t");
1305 prefix2 = p2 ? p2 : prefix;
1308 "%sService State: %s\n"
1310 "%sReload Result: %s\n"
1311 "%sPermissionsStartOnly: %s\n"
1312 "%sRootDirectoryStartOnly: %s\n"
1313 "%sRemainAfterExit: %s\n"
1314 "%sGuessMainPID: %s\n"
1317 "%sNotifyAccess: %s\n",
1318 prefix, service_state_to_string(s->state),
1319 prefix, service_result_to_string(s->result),
1320 prefix, service_result_to_string(s->reload_result),
1321 prefix, yes_no(s->permissions_start_only),
1322 prefix, yes_no(s->root_directory_start_only),
1323 prefix, yes_no(s->remain_after_exit),
1324 prefix, yes_no(s->guess_main_pid),
1325 prefix, service_type_to_string(s->type),
1326 prefix, service_restart_to_string(s->restart),
1327 prefix, notify_access_to_string(s->notify_access));
1329 if (s->control_pid > 0)
1331 "%sControl PID: %lu\n",
1332 prefix, (unsigned long) s->control_pid);
1334 if (s->main_pid > 0)
1337 "%sMain PID Known: %s\n"
1338 "%sMain PID Alien: %s\n",
1339 prefix, (unsigned long) s->main_pid,
1340 prefix, yes_no(s->main_pid_known),
1341 prefix, yes_no(s->main_pid_alien));
1346 prefix, s->pid_file);
1351 "%sBus Name Good: %s\n",
1352 prefix, s->bus_name,
1353 prefix, yes_no(s->bus_name_good));
1355 kill_context_dump(&s->kill_context, f, prefix);
1356 exec_context_dump(&s->exec_context, f, prefix);
1358 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1360 if (!s->exec_command[c])
1363 fprintf(f, "%s-> %s:\n",
1364 prefix, service_exec_command_to_string(c));
1366 exec_command_dump_list(s->exec_command[c], f, prefix2);
1369 #ifdef HAVE_SYSV_COMPAT
1372 "%sSysV Init Script has LSB Header: %s\n"
1373 "%sSysVEnabled: %s\n",
1374 prefix, yes_no(s->sysv_has_lsb),
1375 prefix, yes_no(s->sysv_enabled));
1377 if (s->sysv_start_priority >= 0)
1379 "%sSysVStartPriority: %i\n",
1380 prefix, s->sysv_start_priority);
1382 if (s->sysv_runlevels)
1383 fprintf(f, "%sSysVRunLevels: %s\n",
1384 prefix, s->sysv_runlevels);
1387 if (s->fsck_passno > 0)
1389 "%sFsckPassNo: %i\n",
1390 prefix, s->fsck_passno);
1393 fprintf(f, "%sStatus Text: %s\n",
1394 prefix, s->status_text);
1399 static int service_load_pid_file(Service *s, bool may_warn) {
1409 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1411 log_info("PID file %s not readable (yet?) after %s.",
1412 s->pid_file, service_state_to_string(s->state));
1416 r = parse_pid(k, &pid);
1422 if (kill(pid, 0) < 0 && errno != EPERM) {
1424 log_info("PID %lu read from file %s does not exist.",
1425 (unsigned long) pid, s->pid_file);
1429 if (s->main_pid_known) {
1430 if (pid == s->main_pid)
1433 log_debug("Main PID changing: %lu -> %lu",
1434 (unsigned long) s->main_pid, (unsigned long) pid);
1435 service_unwatch_main_pid(s);
1436 s->main_pid_known = false;
1438 log_debug("Main PID loaded: %lu", (unsigned long) pid);
1440 if ((r = service_set_main_pid(s, pid)) < 0)
1443 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1444 /* FIXME: we need to do something here */
1450 static int service_search_main_pid(Service *s) {
1456 /* If we know it anyway, don't ever fallback to unreliable
1458 if (s->main_pid_known)
1461 if (!s->guess_main_pid)
1464 assert(s->main_pid <= 0);
1466 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1469 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1470 if ((r = service_set_main_pid(s, pid)) < 0)
1473 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1474 /* FIXME: we need to do something here */
1480 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1486 /* Notifies all our sockets when we die */
1488 if (s->socket_fd >= 0)
1491 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1492 if (u->type == UNIT_SOCKET)
1493 socket_notify_service_dead(SOCKET(u), failed_permanent);
1498 static void service_set_state(Service *s, ServiceState state) {
1499 ServiceState old_state;
1500 const UnitActiveState *table;
1503 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1505 old_state = s->state;
1508 service_unwatch_pid_file(s);
1510 if (state != SERVICE_START_PRE &&
1511 state != SERVICE_START &&
1512 state != SERVICE_START_POST &&
1513 state != SERVICE_RELOAD &&
1514 state != SERVICE_STOP &&
1515 state != SERVICE_STOP_SIGTERM &&
1516 state != SERVICE_STOP_SIGKILL &&
1517 state != SERVICE_STOP_POST &&
1518 state != SERVICE_FINAL_SIGTERM &&
1519 state != SERVICE_FINAL_SIGKILL &&
1520 state != SERVICE_AUTO_RESTART)
1521 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1523 if (state != SERVICE_START &&
1524 state != SERVICE_START_POST &&
1525 state != SERVICE_RUNNING &&
1526 state != SERVICE_RELOAD &&
1527 state != SERVICE_STOP &&
1528 state != SERVICE_STOP_SIGTERM &&
1529 state != SERVICE_STOP_SIGKILL) {
1530 service_unwatch_main_pid(s);
1531 s->main_command = NULL;
1534 if (state != SERVICE_START_PRE &&
1535 state != SERVICE_START &&
1536 state != SERVICE_START_POST &&
1537 state != SERVICE_RELOAD &&
1538 state != SERVICE_STOP &&
1539 state != SERVICE_STOP_SIGTERM &&
1540 state != SERVICE_STOP_SIGKILL &&
1541 state != SERVICE_STOP_POST &&
1542 state != SERVICE_FINAL_SIGTERM &&
1543 state != SERVICE_FINAL_SIGKILL) {
1544 service_unwatch_control_pid(s);
1545 s->control_command = NULL;
1546 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1549 if (state == SERVICE_DEAD ||
1550 state == SERVICE_STOP ||
1551 state == SERVICE_STOP_SIGTERM ||
1552 state == SERVICE_STOP_SIGKILL ||
1553 state == SERVICE_STOP_POST ||
1554 state == SERVICE_FINAL_SIGTERM ||
1555 state == SERVICE_FINAL_SIGKILL ||
1556 state == SERVICE_FAILED ||
1557 state == SERVICE_AUTO_RESTART)
1558 service_notify_sockets_dead(s, false);
1560 if (state != SERVICE_START_PRE &&
1561 state != SERVICE_START &&
1562 state != SERVICE_START_POST &&
1563 state != SERVICE_RUNNING &&
1564 state != SERVICE_RELOAD &&
1565 state != SERVICE_STOP &&
1566 state != SERVICE_STOP_SIGTERM &&
1567 state != SERVICE_STOP_SIGKILL &&
1568 state != SERVICE_STOP_POST &&
1569 state != SERVICE_FINAL_SIGTERM &&
1570 state != SERVICE_FINAL_SIGKILL &&
1571 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1572 service_close_socket_fd(s);
1573 service_connection_unref(s);
1576 if (state == SERVICE_STOP)
1577 service_stop_watchdog(s);
1579 /* For the inactive states unit_notify() will trim the cgroup,
1580 * but for exit we have to do that ourselves... */
1581 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1582 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1584 if (old_state != state)
1585 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1587 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1588 s->reload_result = SERVICE_SUCCESS;
1591 static int service_coldplug(Unit *u) {
1592 Service *s = SERVICE(u);
1596 assert(s->state == SERVICE_DEAD);
1598 if (s->deserialized_state != s->state) {
1600 if (s->deserialized_state == SERVICE_START_PRE ||
1601 s->deserialized_state == SERVICE_START ||
1602 s->deserialized_state == SERVICE_START_POST ||
1603 s->deserialized_state == SERVICE_RELOAD ||
1604 s->deserialized_state == SERVICE_STOP ||
1605 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1606 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1607 s->deserialized_state == SERVICE_STOP_POST ||
1608 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1609 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1610 s->deserialized_state == SERVICE_AUTO_RESTART) {
1611 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1614 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1616 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1621 if ((s->deserialized_state == SERVICE_START &&
1622 (s->type == SERVICE_FORKING ||
1623 s->type == SERVICE_DBUS ||
1624 s->type == SERVICE_ONESHOT ||
1625 s->type == SERVICE_NOTIFY)) ||
1626 s->deserialized_state == SERVICE_START_POST ||
1627 s->deserialized_state == SERVICE_RUNNING ||
1628 s->deserialized_state == SERVICE_RELOAD ||
1629 s->deserialized_state == SERVICE_STOP ||
1630 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1631 s->deserialized_state == SERVICE_STOP_SIGKILL)
1632 if (s->main_pid > 0)
1633 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1636 if (s->deserialized_state == SERVICE_START_PRE ||
1637 s->deserialized_state == SERVICE_START ||
1638 s->deserialized_state == SERVICE_START_POST ||
1639 s->deserialized_state == SERVICE_RELOAD ||
1640 s->deserialized_state == SERVICE_STOP ||
1641 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1642 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1643 s->deserialized_state == SERVICE_STOP_POST ||
1644 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1645 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1646 if (s->control_pid > 0)
1647 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1650 if (s->deserialized_state == SERVICE_START_POST ||
1651 s->deserialized_state == SERVICE_RUNNING)
1652 service_handle_watchdog(s);
1654 service_set_state(s, s->deserialized_state);
1659 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1663 unsigned rn_fds = 0;
1670 if (s->socket_fd >= 0)
1673 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1678 if (u->type != UNIT_SOCKET)
1683 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1695 if (!(t = new(int, rn_fds+cn_fds))) {
1701 memcpy(t, rfds, rn_fds * sizeof(int));
1702 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1707 rn_fds = rn_fds+cn_fds;
1722 static int service_spawn(
1727 bool apply_permissions,
1729 bool apply_tty_stdin,
1730 bool set_notify_socket,
1736 int *fds = NULL, *fdsbuf = NULL;
1737 unsigned n_fds = 0, n_env = 0;
1738 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1745 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1746 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1747 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1749 if (s->socket_fd >= 0) {
1750 fds = &s->socket_fd;
1753 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1760 if (timeout && s->timeout_start_usec) {
1761 r = unit_watch_timer(UNIT(s), s->timeout_start_usec, &s->timer_watch);
1765 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1767 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1772 if (!(our_env = new0(char*, 4))) {
1777 if (set_notify_socket)
1778 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1783 if (s->main_pid > 0)
1784 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1789 if (s->watchdog_usec > 0)
1790 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1795 if (!(final_env = strv_env_merge(2,
1796 UNIT(s)->manager->environment,
1811 UNIT(s)->manager->confirm_spawn,
1812 UNIT(s)->cgroup_bondings,
1813 UNIT(s)->cgroup_attributes,
1814 is_control ? "control" : NULL,
1816 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1823 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1824 /* FIXME: we need to do something here */
1830 strv_free(final_env);
1840 strv_free(final_env);
1843 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1848 static int main_pid_good(Service *s) {
1851 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1854 /* If we know the pid file, then lets just check if it is
1856 if (s->main_pid_known) {
1858 /* If it's an alien child let's check if it is still
1860 if (s->main_pid_alien)
1861 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1863 /* .. otherwise assume we'll get a SIGCHLD for it,
1864 * which we really should wait for to collect exit
1865 * status and code */
1866 return s->main_pid > 0;
1869 /* We don't know the pid */
1873 static int control_pid_good(Service *s) {
1876 return s->control_pid > 0;
1879 static int cgroup_good(Service *s) {
1884 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1890 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1894 if (f != SERVICE_SUCCESS)
1897 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1899 if (allow_restart &&
1900 !s->forbid_restart &&
1901 (s->restart == SERVICE_RESTART_ALWAYS ||
1902 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1903 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1904 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1905 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1907 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1911 service_set_state(s, SERVICE_AUTO_RESTART);
1914 s->forbid_restart = false;
1919 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1920 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1923 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1925 static void service_enter_stop_post(Service *s, ServiceResult f) {
1929 if (f != SERVICE_SUCCESS)
1932 service_unwatch_control_pid(s);
1934 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1935 s->control_command_id = SERVICE_EXEC_STOP_POST;
1937 r = service_spawn(s,
1941 !s->permissions_start_only,
1942 !s->root_directory_start_only,
1951 service_set_state(s, SERVICE_STOP_POST);
1953 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1958 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1959 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1962 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1964 Set *pid_set = NULL;
1965 bool wait_for_exit = false;
1969 if (f != SERVICE_SUCCESS)
1972 if (s->kill_context.kill_mode != KILL_NONE) {
1973 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
1975 if (s->main_pid > 0) {
1976 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1977 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1979 wait_for_exit = !s->main_pid_alien;
1982 if (s->control_pid > 0) {
1983 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1984 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1986 wait_for_exit = true;
1989 if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
1991 pid_set = set_new(trivial_hash_func, trivial_compare_func);
1997 /* Exclude the main/control pids from being killed via the cgroup */
1998 if (s->main_pid > 0)
1999 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
2002 if (s->control_pid > 0)
2003 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
2006 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
2008 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2009 log_warning("Failed to kill control group: %s", strerror(-r));
2011 wait_for_exit = true;
2018 if (wait_for_exit) {
2019 if (s->timeout_stop_usec > 0) {
2020 r = unit_watch_timer(UNIT(s), s->timeout_stop_usec, &s->timer_watch);
2025 service_set_state(s, state);
2026 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2027 service_enter_stop_post(s, SERVICE_SUCCESS);
2029 service_enter_dead(s, SERVICE_SUCCESS, true);
2034 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2036 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2037 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2039 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2045 static void service_enter_stop(Service *s, ServiceResult f) {
2050 if (f != SERVICE_SUCCESS)
2053 service_unwatch_control_pid(s);
2055 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2056 s->control_command_id = SERVICE_EXEC_STOP;
2058 r = service_spawn(s,
2062 !s->permissions_start_only,
2063 !s->root_directory_start_only,
2071 service_set_state(s, SERVICE_STOP);
2073 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2078 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2079 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2082 static void service_enter_running(Service *s, ServiceResult f) {
2083 int main_pid_ok, cgroup_ok;
2086 if (f != SERVICE_SUCCESS)
2089 main_pid_ok = main_pid_good(s);
2090 cgroup_ok = cgroup_good(s);
2092 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2093 (s->bus_name_good || s->type != SERVICE_DBUS))
2094 service_set_state(s, SERVICE_RUNNING);
2095 else if (s->remain_after_exit)
2096 service_set_state(s, SERVICE_EXITED);
2098 service_enter_stop(s, SERVICE_SUCCESS);
2101 static void service_enter_start_post(Service *s) {
2105 service_unwatch_control_pid(s);
2107 if (s->watchdog_usec > 0)
2108 service_reset_watchdog(s);
2110 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2111 s->control_command_id = SERVICE_EXEC_START_POST;
2113 r = service_spawn(s,
2117 !s->permissions_start_only,
2118 !s->root_directory_start_only,
2126 service_set_state(s, SERVICE_START_POST);
2128 service_enter_running(s, SERVICE_SUCCESS);
2133 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2134 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2137 static void service_enter_start(Service *s) {
2144 assert(s->exec_command[SERVICE_EXEC_START]);
2145 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2147 if (s->type == SERVICE_FORKING)
2148 service_unwatch_control_pid(s);
2150 service_unwatch_main_pid(s);
2152 /* We want to ensure that nobody leaks processes from
2153 * START_PRE here, so let's go on a killing spree, People
2154 * should not spawn long running processes from START_PRE. */
2155 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2157 if (s->type == SERVICE_FORKING) {
2158 s->control_command_id = SERVICE_EXEC_START;
2159 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2161 s->main_command = NULL;
2163 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2164 s->control_command = NULL;
2166 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2169 r = service_spawn(s,
2171 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2176 s->notify_access != NOTIFY_NONE,
2182 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2183 /* For simple services we immediately start
2184 * the START_POST binaries. */
2186 service_set_main_pid(s, pid);
2187 service_enter_start_post(s);
2189 } else if (s->type == SERVICE_FORKING) {
2191 /* For forking services we wait until the start
2192 * process exited. */
2194 s->control_pid = pid;
2195 service_set_state(s, SERVICE_START);
2197 } else if (s->type == SERVICE_ONESHOT ||
2198 s->type == SERVICE_DBUS ||
2199 s->type == SERVICE_NOTIFY) {
2201 /* For oneshot services we wait until the start
2202 * process exited, too, but it is our main process. */
2204 /* For D-Bus services we know the main pid right away,
2205 * but wait for the bus name to appear on the
2206 * bus. Notify services are similar. */
2208 service_set_main_pid(s, pid);
2209 service_set_state(s, SERVICE_START);
2211 assert_not_reached("Unknown service type");
2216 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2217 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2220 static void service_enter_start_pre(Service *s) {
2225 service_unwatch_control_pid(s);
2227 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2229 /* Before we start anything, let's clear up what might
2230 * be left from previous runs. */
2231 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2233 s->control_command_id = SERVICE_EXEC_START_PRE;
2235 r = service_spawn(s,
2239 !s->permissions_start_only,
2240 !s->root_directory_start_only,
2248 service_set_state(s, SERVICE_START_PRE);
2250 service_enter_start(s);
2255 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2256 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2259 static void service_enter_restart(Service *s) {
2264 dbus_error_init(&error);
2266 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2267 /* Don't restart things if we are going down anyway */
2268 log_info("Stop job pending for unit, delaying automatic restart.");
2270 r = unit_watch_timer(UNIT(s), 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("%s scheduled restart job.", UNIT(s)->id);
2293 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2294 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2296 dbus_error_free(&error);
2299 static void service_enter_reload(Service *s) {
2304 service_unwatch_control_pid(s);
2306 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2307 s->control_command_id = SERVICE_EXEC_RELOAD;
2309 r = service_spawn(s,
2313 !s->permissions_start_only,
2314 !s->root_directory_start_only,
2322 service_set_state(s, SERVICE_RELOAD);
2324 service_enter_running(s, SERVICE_SUCCESS);
2329 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2330 s->reload_result = SERVICE_FAILURE_RESOURCES;
2331 service_enter_running(s, SERVICE_SUCCESS);
2334 static void service_run_next_control(Service *s) {
2338 assert(s->control_command);
2339 assert(s->control_command->command_next);
2341 assert(s->control_command_id != SERVICE_EXEC_START);
2343 s->control_command = s->control_command->command_next;
2344 service_unwatch_control_pid(s);
2346 r = service_spawn(s,
2350 !s->permissions_start_only,
2351 !s->root_directory_start_only,
2352 s->control_command_id == SERVICE_EXEC_START_PRE ||
2353 s->control_command_id == SERVICE_EXEC_STOP_POST,
2363 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2365 if (s->state == SERVICE_START_PRE)
2366 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2367 else if (s->state == SERVICE_STOP)
2368 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2369 else if (s->state == SERVICE_STOP_POST)
2370 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2371 else if (s->state == SERVICE_RELOAD) {
2372 s->reload_result = SERVICE_FAILURE_RESOURCES;
2373 service_enter_running(s, SERVICE_SUCCESS);
2375 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2378 static void service_run_next_main(Service *s) {
2383 assert(s->main_command);
2384 assert(s->main_command->command_next);
2385 assert(s->type == SERVICE_ONESHOT);
2387 s->main_command = s->main_command->command_next;
2388 service_unwatch_main_pid(s);
2390 r = service_spawn(s,
2397 s->notify_access != NOTIFY_NONE,
2403 service_set_main_pid(s, pid);
2408 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2409 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2412 static int service_start_limit_test(Service *s) {
2415 if (ratelimit_test(&s->start_limit))
2418 switch (s->start_limit_action) {
2420 case SERVICE_START_LIMIT_NONE:
2421 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2424 case SERVICE_START_LIMIT_REBOOT: {
2428 dbus_error_init(&error);
2430 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2432 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2434 log_error("Failed to reboot: %s.", bus_error(&error, r));
2435 dbus_error_free(&error);
2441 case SERVICE_START_LIMIT_REBOOT_FORCE:
2442 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2443 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2446 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2447 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2448 reboot(RB_AUTOBOOT);
2452 log_error("start limit action=%i", s->start_limit_action);
2453 assert_not_reached("Unknown StartLimitAction.");
2459 static int service_start(Unit *u) {
2460 Service *s = SERVICE(u);
2465 /* We cannot fulfill this request right now, try again later
2467 if (s->state == SERVICE_STOP ||
2468 s->state == SERVICE_STOP_SIGTERM ||
2469 s->state == SERVICE_STOP_SIGKILL ||
2470 s->state == SERVICE_STOP_POST ||
2471 s->state == SERVICE_FINAL_SIGTERM ||
2472 s->state == SERVICE_FINAL_SIGKILL)
2475 /* Already on it! */
2476 if (s->state == SERVICE_START_PRE ||
2477 s->state == SERVICE_START ||
2478 s->state == SERVICE_START_POST)
2481 /* A service that will be restarted must be stopped first to
2482 * trigger BindsTo and/or OnFailure dependencies. If a user
2483 * does not want to wait for the holdoff time to elapse, the
2484 * service should be manually restarted, not started. We
2485 * simply return EAGAIN here, so that any start jobs stay
2486 * queued, and assume that the auto restart timer will
2487 * eventually trigger the restart. */
2488 if (s->state == SERVICE_AUTO_RESTART)
2491 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2493 /* Make sure we don't enter a busy loop of some kind. */
2494 r = service_start_limit_test(s);
2496 service_notify_sockets_dead(s, true);
2500 s->result = SERVICE_SUCCESS;
2501 s->reload_result = SERVICE_SUCCESS;
2502 s->main_pid_known = false;
2503 s->main_pid_alien = false;
2504 s->forbid_restart = false;
2506 service_enter_start_pre(s);
2510 static int service_stop(Unit *u) {
2511 Service *s = SERVICE(u);
2515 /* Don't create restart jobs from here. */
2516 s->forbid_restart = true;
2519 if (s->state == SERVICE_STOP ||
2520 s->state == SERVICE_STOP_SIGTERM ||
2521 s->state == SERVICE_STOP_SIGKILL ||
2522 s->state == SERVICE_STOP_POST ||
2523 s->state == SERVICE_FINAL_SIGTERM ||
2524 s->state == SERVICE_FINAL_SIGKILL)
2527 /* A restart will be scheduled or is in progress. */
2528 if (s->state == SERVICE_AUTO_RESTART) {
2529 service_set_state(s, SERVICE_DEAD);
2533 /* If there's already something running we go directly into
2535 if (s->state == SERVICE_START_PRE ||
2536 s->state == SERVICE_START ||
2537 s->state == SERVICE_START_POST ||
2538 s->state == SERVICE_RELOAD) {
2539 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2543 assert(s->state == SERVICE_RUNNING ||
2544 s->state == SERVICE_EXITED);
2546 service_enter_stop(s, SERVICE_SUCCESS);
2550 static int service_reload(Unit *u) {
2551 Service *s = SERVICE(u);
2555 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2557 service_enter_reload(s);
2561 static bool service_can_reload(Unit *u) {
2562 Service *s = SERVICE(u);
2566 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2569 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2570 Service *s = SERVICE(u);
2576 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2577 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2578 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2580 if (s->control_pid > 0)
2581 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2583 if (s->main_pid_known && s->main_pid > 0)
2584 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2586 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2589 unit_serialize_item(u, f, "status-text", s->status_text);
2591 /* FIXME: There's a minor uncleanliness here: if there are
2592 * multiple commands attached here, we will start from the
2593 * first one again */
2594 if (s->control_command_id >= 0)
2595 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2597 if (s->socket_fd >= 0) {
2600 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2603 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2606 if (s->main_exec_status.pid > 0) {
2607 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2608 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2609 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2611 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2612 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2613 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2616 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2617 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2622 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2623 Service *s = SERVICE(u);
2630 if (streq(key, "state")) {
2633 if ((state = service_state_from_string(value)) < 0)
2634 log_debug("Failed to parse state value %s", value);
2636 s->deserialized_state = state;
2637 } else if (streq(key, "result")) {
2640 f = service_result_from_string(value);
2642 log_debug("Failed to parse result value %s", value);
2643 else if (f != SERVICE_SUCCESS)
2646 } else if (streq(key, "reload-result")) {
2649 f = service_result_from_string(value);
2651 log_debug("Failed to parse reload result value %s", value);
2652 else if (f != SERVICE_SUCCESS)
2653 s->reload_result = f;
2655 } else if (streq(key, "control-pid")) {
2658 if (parse_pid(value, &pid) < 0)
2659 log_debug("Failed to parse control-pid value %s", value);
2661 s->control_pid = pid;
2662 } else if (streq(key, "main-pid")) {
2665 if (parse_pid(value, &pid) < 0)
2666 log_debug("Failed to parse main-pid value %s", value);
2668 service_set_main_pid(s, (pid_t) pid);
2669 } else if (streq(key, "main-pid-known")) {
2672 if ((b = parse_boolean(value)) < 0)
2673 log_debug("Failed to parse main-pid-known value %s", value);
2675 s->main_pid_known = b;
2676 } else if (streq(key, "status-text")) {
2679 if ((t = strdup(value))) {
2680 free(s->status_text);
2684 } else if (streq(key, "control-command")) {
2685 ServiceExecCommand id;
2687 if ((id = service_exec_command_from_string(value)) < 0)
2688 log_debug("Failed to parse exec-command value %s", value);
2690 s->control_command_id = id;
2691 s->control_command = s->exec_command[id];
2693 } else if (streq(key, "socket-fd")) {
2696 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2697 log_debug("Failed to parse socket-fd value %s", value);
2700 if (s->socket_fd >= 0)
2701 close_nointr_nofail(s->socket_fd);
2702 s->socket_fd = fdset_remove(fds, fd);
2704 } else if (streq(key, "main-exec-status-pid")) {
2707 if (parse_pid(value, &pid) < 0)
2708 log_debug("Failed to parse main-exec-status-pid value %s", value);
2710 s->main_exec_status.pid = pid;
2711 } else if (streq(key, "main-exec-status-code")) {
2714 if (safe_atoi(value, &i) < 0)
2715 log_debug("Failed to parse main-exec-status-code value %s", value);
2717 s->main_exec_status.code = i;
2718 } else if (streq(key, "main-exec-status-status")) {
2721 if (safe_atoi(value, &i) < 0)
2722 log_debug("Failed to parse main-exec-status-status value %s", value);
2724 s->main_exec_status.status = i;
2725 } else if (streq(key, "main-exec-status-start"))
2726 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2727 else if (streq(key, "main-exec-status-exit"))
2728 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2729 else if (streq(key, "watchdog-timestamp"))
2730 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2732 log_debug("Unknown serialization key '%s'", key);
2737 static UnitActiveState service_active_state(Unit *u) {
2738 const UnitActiveState *table;
2742 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2744 return table[SERVICE(u)->state];
2747 static const char *service_sub_state_to_string(Unit *u) {
2750 return service_state_to_string(SERVICE(u)->state);
2753 static bool service_check_gc(Unit *u) {
2754 Service *s = SERVICE(u);
2758 /* Never clean up services that still have a process around,
2759 * even if the service is formally dead. */
2760 if (cgroup_good(s) > 0 ||
2761 main_pid_good(s) > 0 ||
2762 control_pid_good(s) > 0)
2765 #ifdef HAVE_SYSV_COMPAT
2773 static bool service_check_snapshot(Unit *u) {
2774 Service *s = SERVICE(u);
2778 return !s->got_socket_fd;
2781 static int service_retry_pid_file(Service *s) {
2784 assert(s->pid_file);
2785 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2787 r = service_load_pid_file(s, false);
2791 service_unwatch_pid_file(s);
2793 service_enter_running(s, SERVICE_SUCCESS);
2797 static int service_watch_pid_file(Service *s) {
2800 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2801 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2805 /* the pidfile might have appeared just before we set the watch */
2806 service_retry_pid_file(s);
2810 log_error("Failed to set a watch for %s's PID file %s: %s",
2811 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2812 service_unwatch_pid_file(s);
2816 static int service_demand_pid_file(Service *s) {
2819 assert(s->pid_file);
2820 assert(!s->pid_file_pathspec);
2822 ps = new0(PathSpec, 1);
2826 ps->path = strdup(s->pid_file);
2832 path_kill_slashes(ps->path);
2834 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2835 * keep their PID file open all the time. */
2836 ps->type = PATH_MODIFIED;
2837 ps->inotify_fd = -1;
2839 s->pid_file_pathspec = ps;
2841 return service_watch_pid_file(s);
2844 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2845 Service *s = SERVICE(u);
2849 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2850 assert(s->pid_file_pathspec);
2851 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2853 log_debug("inotify event for %s", u->id);
2855 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2858 if (service_retry_pid_file(s) == 0)
2861 if (service_watch_pid_file(s) < 0)
2866 service_unwatch_pid_file(s);
2867 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2870 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2871 Service *s = SERVICE(u);
2877 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2878 f = SERVICE_SUCCESS;
2879 else if (code == CLD_EXITED)
2880 f = SERVICE_FAILURE_EXIT_CODE;
2881 else if (code == CLD_KILLED)
2882 f = SERVICE_FAILURE_SIGNAL;
2883 else if (code == CLD_DUMPED)
2884 f = SERVICE_FAILURE_CORE_DUMP;
2886 assert_not_reached("Unknown code");
2888 if (s->main_pid == pid) {
2889 /* Forking services may occasionally move to a new PID.
2890 * As long as they update the PID file before exiting the old
2891 * PID, they're fine. */
2892 if (service_load_pid_file(s, false) == 0)
2896 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2898 /* If this is not a forking service than the main
2899 * process got started and hence we copy the exit
2900 * status so that it is recorded both as main and as
2901 * control process exit status */
2902 if (s->main_command) {
2903 s->main_command->exec_status = s->main_exec_status;
2905 if (s->main_command->ignore)
2906 f = SERVICE_SUCCESS;
2909 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2910 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2912 if (f != SERVICE_SUCCESS)
2915 if (s->main_command &&
2916 s->main_command->command_next &&
2917 f == SERVICE_SUCCESS) {
2919 /* There is another command to *
2920 * execute, so let's do that. */
2922 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2923 service_run_next_main(s);
2927 /* The service exited, so the service is officially
2929 s->main_command = NULL;
2933 case SERVICE_START_POST:
2934 case SERVICE_RELOAD:
2936 /* Need to wait until the operation is
2941 if (s->type == SERVICE_ONESHOT) {
2942 /* This was our main goal, so let's go on */
2943 if (f == SERVICE_SUCCESS)
2944 service_enter_start_post(s);
2946 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2949 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2954 case SERVICE_RUNNING:
2955 service_enter_running(s, f);
2958 case SERVICE_STOP_SIGTERM:
2959 case SERVICE_STOP_SIGKILL:
2961 if (!control_pid_good(s))
2962 service_enter_stop_post(s, f);
2964 /* If there is still a control process, wait for that first */
2968 assert_not_reached("Uh, main process died at wrong time.");
2972 } else if (s->control_pid == pid) {
2976 if (s->control_command) {
2977 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2979 if (s->control_command->ignore)
2980 f = SERVICE_SUCCESS;
2983 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2984 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2986 if (f != SERVICE_SUCCESS)
2989 /* Immediately get rid of the cgroup, so that the
2990 * kernel doesn't delay the cgroup empty messages for
2991 * the service cgroup any longer than necessary */
2992 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2994 if (s->control_command &&
2995 s->control_command->command_next &&
2996 f == SERVICE_SUCCESS) {
2998 /* There is another command to *
2999 * execute, so let's do that. */
3001 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
3002 service_run_next_control(s);
3005 /* No further commands for this step, so let's
3006 * figure out what to do next */
3008 s->control_command = NULL;
3009 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3011 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
3015 case SERVICE_START_PRE:
3016 if (f == SERVICE_SUCCESS)
3017 service_enter_start(s);
3019 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3023 assert(s->type == SERVICE_FORKING);
3025 if (f != SERVICE_SUCCESS) {
3026 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3031 bool has_start_post;
3034 /* Let's try to load the pid file here if we can.
3035 * The PID file might actually be created by a START_POST
3036 * script. In that case don't worry if the loading fails. */
3038 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3039 r = service_load_pid_file(s, !has_start_post);
3040 if (!has_start_post && r < 0) {
3041 r = service_demand_pid_file(s);
3042 if (r < 0 || !cgroup_good(s))
3043 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3047 service_search_main_pid(s);
3049 service_enter_start_post(s);
3052 case SERVICE_START_POST:
3053 if (f != SERVICE_SUCCESS) {
3054 service_enter_stop(s, f);
3061 r = service_load_pid_file(s, true);
3063 r = service_demand_pid_file(s);
3064 if (r < 0 || !cgroup_good(s))
3065 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3069 service_search_main_pid(s);
3071 service_enter_running(s, SERVICE_SUCCESS);
3074 case SERVICE_RELOAD:
3075 if (f == SERVICE_SUCCESS) {
3076 service_load_pid_file(s, true);
3077 service_search_main_pid(s);
3080 s->reload_result = f;
3081 service_enter_running(s, SERVICE_SUCCESS);
3085 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3088 case SERVICE_STOP_SIGTERM:
3089 case SERVICE_STOP_SIGKILL:
3090 if (main_pid_good(s) <= 0)
3091 service_enter_stop_post(s, f);
3093 /* If there is still a service
3094 * process around, wait until
3095 * that one quit, too */
3098 case SERVICE_STOP_POST:
3099 case SERVICE_FINAL_SIGTERM:
3100 case SERVICE_FINAL_SIGKILL:
3101 service_enter_dead(s, f, true);
3105 assert_not_reached("Uh, control process died at wrong time.");
3110 /* Notify clients about changed exit status */
3111 unit_add_to_dbus_queue(u);
3114 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3115 Service *s = SERVICE(u);
3118 assert(elapsed == 1);
3120 if (w == &s->watchdog_watch) {
3121 service_handle_watchdog(s);
3125 assert(w == &s->timer_watch);
3129 case SERVICE_START_PRE:
3131 log_warning("%s operation timed out. Terminating.", u->id);
3132 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3135 case SERVICE_START_POST:
3136 log_warning("%s operation timed out. Stopping.", u->id);
3137 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3140 case SERVICE_RELOAD:
3141 log_warning("%s operation timed out. Stopping.", u->id);
3142 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3143 service_enter_running(s, SERVICE_SUCCESS);
3147 log_warning("%s stopping timed out. Terminating.", u->id);
3148 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3151 case SERVICE_STOP_SIGTERM:
3152 if (s->kill_context.send_sigkill) {
3153 log_warning("%s stopping timed out. Killing.", u->id);
3154 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3156 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3157 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3162 case SERVICE_STOP_SIGKILL:
3163 /* Uh, we sent a SIGKILL and it is still not gone?
3164 * Must be something we cannot kill, so let's just be
3165 * weirded out and continue */
3167 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3168 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3171 case SERVICE_STOP_POST:
3172 log_warning("%s stopping timed out (2). Terminating.", u->id);
3173 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3176 case SERVICE_FINAL_SIGTERM:
3177 if (s->kill_context.send_sigkill) {
3178 log_warning("%s stopping timed out (2). Killing.", u->id);
3179 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3181 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3182 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3187 case SERVICE_FINAL_SIGKILL:
3188 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3189 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3192 case SERVICE_AUTO_RESTART:
3193 log_info("%s holdoff time over, scheduling restart.", u->id);
3194 service_enter_restart(s);
3198 assert_not_reached("Timeout at wrong time.");
3202 static void service_cgroup_notify_event(Unit *u) {
3203 Service *s = SERVICE(u);
3207 log_debug("%s: cgroup is empty", u->id);
3211 /* Waiting for SIGCHLD is usually more interesting,
3212 * because it includes return codes/signals. Which is
3213 * why we ignore the cgroup events for most cases,
3214 * except when we don't know pid which to expect the
3218 case SERVICE_START_POST:
3219 /* If we were hoping for the daemon to write its PID file,
3220 * we can give up now. */
3221 if (s->pid_file_pathspec) {
3222 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3223 service_unwatch_pid_file(s);
3224 if (s->state == SERVICE_START)
3225 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3227 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3231 case SERVICE_RUNNING:
3232 /* service_enter_running() will figure out what to do */
3233 service_enter_running(s, SERVICE_SUCCESS);
3236 case SERVICE_STOP_SIGTERM:
3237 case SERVICE_STOP_SIGKILL:
3239 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3240 service_enter_stop_post(s, SERVICE_SUCCESS);
3244 case SERVICE_FINAL_SIGTERM:
3245 case SERVICE_FINAL_SIGKILL:
3246 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3247 service_enter_dead(s, SERVICE_SUCCESS, true);
3256 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3257 Service *s = SERVICE(u);
3262 if (s->notify_access == NOTIFY_NONE) {
3263 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3264 u->id, (unsigned long) pid);
3268 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3269 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3270 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3274 log_debug("%s: Got message", u->id);
3276 /* Interpret MAINPID= */
3277 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3278 (s->state == SERVICE_START ||
3279 s->state == SERVICE_START_POST ||
3280 s->state == SERVICE_RUNNING ||
3281 s->state == SERVICE_RELOAD)) {
3283 if (parse_pid(e + 8, &pid) < 0)
3284 log_warning("Failed to parse notification message %s", e);
3286 log_debug("%s: got %s", u->id, e);
3287 service_set_main_pid(s, pid);
3291 /* Interpret READY= */
3292 if (s->type == SERVICE_NOTIFY &&
3293 s->state == SERVICE_START &&
3294 strv_find(tags, "READY=1")) {
3295 log_debug("%s: got READY=1", u->id);
3297 service_enter_start_post(s);
3300 /* Interpret STATUS= */
3301 e = strv_find_prefix(tags, "STATUS=");
3307 if (!utf8_is_valid(e+7)) {
3308 log_warning("Status message in notification is not UTF-8 clean.");
3314 log_error("Failed to allocate string.");
3318 log_debug("%s: got %s", u->id, e);
3320 free(s->status_text);
3323 free(s->status_text);
3324 s->status_text = NULL;
3328 if (strv_find(tags, "WATCHDOG=1")) {
3329 log_debug("%s: got WATCHDOG=1", u->id);
3330 service_reset_watchdog(s);
3333 /* Notify clients about changed status or main pid */
3334 unit_add_to_dbus_queue(u);
3337 #ifdef HAVE_SYSV_COMPAT
3340 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3344 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3345 r = errno == ENOENT ? 0 : -errno;
3350 char l[LINE_MAX], *t;
3351 char **parsed = NULL;
3353 if (!fgets(l, sizeof(l), f)) {
3358 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3363 if (*t != '$' && *t != '<')
3366 parsed = strv_split(t,WHITESPACE);
3367 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3368 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3371 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3373 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3375 char *dep = NULL, *name, **j;
3377 STRV_FOREACH (j, parsed+1) {
3386 if (sysv_translate_facility(name, NULL, &dep) < 0)
3389 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3404 static int service_enumerate(Manager *m) {
3408 char *path = NULL, *fpath = NULL, *name = NULL;
3409 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3416 if (m->running_as != MANAGER_SYSTEM)
3419 zero(runlevel_services);
3421 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3422 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3426 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3435 if (!(d = opendir(path))) {
3436 if (errno != ENOENT)
3437 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3442 while ((de = readdir(d))) {
3445 if (ignore_file(de->d_name))
3448 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3451 if (strlen(de->d_name) < 4)
3454 a = undecchar(de->d_name[1]);
3455 b = undecchar(de->d_name[2]);
3461 fpath = strjoin(path, "/", de->d_name, NULL);
3467 if (access(fpath, X_OK) < 0) {
3469 if (errno != ENOENT)
3470 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3476 if (!(name = sysv_translate_name(de->d_name + 3))) {
3481 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3482 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3486 if (de->d_name[0] == 'S') {
3488 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3489 SERVICE(service)->sysv_start_priority_from_rcnd =
3490 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3492 SERVICE(service)->sysv_enabled = true;
3495 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3498 if ((r = set_put(runlevel_services[i], service)) < 0)
3501 } else if (de->d_name[0] == 'K' &&
3502 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3503 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3505 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3508 if ((r = set_put(shutdown_services, service)) < 0)
3514 /* Now we loaded all stubs and are aware of the lowest
3515 start-up priority for all services, not let's actually load
3516 the services, this will also tell us which services are
3517 actually native now */
3518 manager_dispatch_load_queue(m);
3520 /* If this is a native service, rely on native ways to pull in
3521 * a service, don't pull it in via sysv rcN.d links. */
3522 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3523 SET_FOREACH(service, runlevel_services[i], j) {
3524 service = unit_follow_merge(service);
3526 if (service->fragment_path)
3529 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3533 /* We honour K links only for halt/reboot. For the normal
3534 * runlevels we assume the stop jobs will be implicitly added
3535 * by the core logic. Also, we don't really distinguish here
3536 * between the runlevels 0 and 6 and just add them to the
3537 * special shutdown target. On SUSE the boot.d/ runlevel is
3538 * also used for shutdown, so we add links for that too to the
3539 * shutdown target.*/
3540 SET_FOREACH(service, shutdown_services, j) {
3541 service = unit_follow_merge(service);
3543 if (service->fragment_path)
3546 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3553 sysv_facility_in_insserv_conf (m);
3561 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3562 set_free(runlevel_services[i]);
3563 set_free(shutdown_services);
3572 static void service_bus_name_owner_change(
3575 const char *old_owner,
3576 const char *new_owner) {
3578 Service *s = SERVICE(u);
3583 assert(streq(s->bus_name, name));
3584 assert(old_owner || new_owner);
3586 if (old_owner && new_owner)
3587 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3589 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3591 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3593 s->bus_name_good = !!new_owner;
3595 if (s->type == SERVICE_DBUS) {
3597 /* service_enter_running() will figure out what to
3599 if (s->state == SERVICE_RUNNING)
3600 service_enter_running(s, SERVICE_SUCCESS);
3601 else if (s->state == SERVICE_START && new_owner)
3602 service_enter_start_post(s);
3604 } else if (new_owner &&
3606 (s->state == SERVICE_START ||
3607 s->state == SERVICE_START_POST ||
3608 s->state == SERVICE_RUNNING ||
3609 s->state == SERVICE_RELOAD)) {
3611 /* Try to acquire PID from bus service */
3612 log_debug("Trying to acquire PID from D-Bus name...");
3614 bus_query_pid(u->manager, name);
3618 static void service_bus_query_pid_done(
3623 Service *s = SERVICE(u);
3628 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3630 if (s->main_pid <= 0 &&
3631 (s->state == SERVICE_START ||
3632 s->state == SERVICE_START_POST ||
3633 s->state == SERVICE_RUNNING ||
3634 s->state == SERVICE_RELOAD))
3635 service_set_main_pid(s, pid);
3638 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3643 /* This is called by the socket code when instantiating a new
3644 * service for a stream socket and the socket needs to be
3647 if (UNIT(s)->load_state != UNIT_LOADED)
3650 if (s->socket_fd >= 0)
3653 if (s->state != SERVICE_DEAD)
3657 s->got_socket_fd = true;
3659 unit_ref_set(&s->accept_socket, UNIT(sock));
3661 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3664 static void service_reset_failed(Unit *u) {
3665 Service *s = SERVICE(u);
3669 if (s->state == SERVICE_FAILED)
3670 service_set_state(s, SERVICE_DEAD);
3672 s->result = SERVICE_SUCCESS;
3673 s->reload_result = SERVICE_SUCCESS;
3675 RATELIMIT_RESET(s->start_limit);
3678 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3679 Service *s = SERVICE(u);
3681 Set *pid_set = NULL;
3685 if (s->main_pid <= 0 && who == KILL_MAIN) {
3686 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3690 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3691 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3695 if (who == KILL_CONTROL || who == KILL_ALL)
3696 if (s->control_pid > 0)
3697 if (kill(s->control_pid, signo) < 0)
3700 if (who == KILL_MAIN || who == KILL_ALL)
3701 if (s->main_pid > 0)
3702 if (kill(s->main_pid, signo) < 0)
3705 if (who == KILL_ALL) {
3708 pid_set = set_new(trivial_hash_func, trivial_compare_func);
3712 /* Exclude the control/main pid from being killed via the cgroup */
3713 if (s->control_pid > 0) {
3714 q = set_put(pid_set, LONG_TO_PTR(s->control_pid));
3721 if (s->main_pid > 0) {
3722 q = set_put(pid_set, LONG_TO_PTR(s->main_pid));
3729 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3730 if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3741 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3742 [SERVICE_DEAD] = "dead",
3743 [SERVICE_START_PRE] = "start-pre",
3744 [SERVICE_START] = "start",
3745 [SERVICE_START_POST] = "start-post",
3746 [SERVICE_RUNNING] = "running",
3747 [SERVICE_EXITED] = "exited",
3748 [SERVICE_RELOAD] = "reload",
3749 [SERVICE_STOP] = "stop",
3750 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3751 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3752 [SERVICE_STOP_POST] = "stop-post",
3753 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3754 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3755 [SERVICE_FAILED] = "failed",
3756 [SERVICE_AUTO_RESTART] = "auto-restart",
3759 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3761 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3762 [SERVICE_RESTART_NO] = "no",
3763 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3764 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
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"
3811 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3813 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3814 [SERVICE_START_LIMIT_NONE] = "none",
3815 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3816 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3817 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3819 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3821 const UnitVTable service_vtable = {
3822 .object_size = sizeof(Service),
3828 .init = service_init,
3829 .done = service_done,
3830 .load = service_load,
3832 .coldplug = service_coldplug,
3834 .dump = service_dump,
3836 .start = service_start,
3837 .stop = service_stop,
3838 .reload = service_reload,
3840 .can_reload = service_can_reload,
3842 .kill = service_kill,
3844 .serialize = service_serialize,
3845 .deserialize_item = service_deserialize_item,
3847 .active_state = service_active_state,
3848 .sub_state_to_string = service_sub_state_to_string,
3850 .check_gc = service_check_gc,
3851 .check_snapshot = service_check_snapshot,
3853 .sigchld_event = service_sigchld_event,
3854 .timer_event = service_timer_event,
3855 .fd_event = service_fd_event,
3857 .reset_failed = service_reset_failed,
3859 .cgroup_notify_empty = service_cgroup_notify_event,
3860 .notify_message = service_notify_message,
3862 .bus_name_owner_change = service_bus_name_owner_change,
3863 .bus_query_pid_done = service_bus_query_pid_done,
3865 .bus_interface = "org.freedesktop.systemd1.Service",
3866 .bus_message_handler = bus_service_message_handler,
3867 .bus_invalidating_properties = bus_service_invalidating_properties,
3869 #ifdef HAVE_SYSV_COMPAT
3870 .enumerate = service_enumerate,
3872 .status_message_formats = {
3873 .starting_stopping = {
3874 [0] = "Starting %s...",
3875 [1] = "Stopping %s...",
3877 .finished_start_job = {
3878 [JOB_DONE] = "Started %s.",
3879 [JOB_FAILED] = "Failed to start %s.",
3880 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3881 [JOB_TIMEOUT] = "Timed out starting %s.",
3883 .finished_stop_job = {
3884 [JOB_DONE] = "Stopped %s.",
3885 [JOB_FAILED] = "Stopped (with error) %s.",
3886 [JOB_TIMEOUT] = "Timed out stopping %s.",