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);
136 assert(u->load_state == UNIT_STUB);
138 s->timeout_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 for (i = 0; i < RLIMIT_NLIMITS; i++)
154 if (UNIT(s)->manager->rlimit[i])
155 s->exec_context.rlimit[i] = newdup(struct rlimit, UNIT(s)->manager->rlimit[i], 1);
157 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
159 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
162 static void service_unwatch_control_pid(Service *s) {
165 if (s->control_pid <= 0)
168 unit_unwatch_pid(UNIT(s), s->control_pid);
172 static void service_unwatch_main_pid(Service *s) {
175 if (s->main_pid <= 0)
178 unit_unwatch_pid(UNIT(s), s->main_pid);
182 static void service_unwatch_pid_file(Service *s) {
183 if (!s->pid_file_pathspec)
186 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
187 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
188 path_spec_done(s->pid_file_pathspec);
189 free(s->pid_file_pathspec);
190 s->pid_file_pathspec = NULL;
193 static int service_set_main_pid(Service *s, pid_t pid) {
205 s->main_pid_known = true;
207 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
208 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
209 UNIT(s)->id, (unsigned long) pid);
211 s->main_pid_alien = true;
213 s->main_pid_alien = false;
215 exec_status_start(&s->main_exec_status, pid);
220 static void service_close_socket_fd(Service *s) {
223 if (s->socket_fd < 0)
226 close_nointr_nofail(s->socket_fd);
230 static void service_connection_unref(Service *s) {
233 if (!UNIT_DEREF(s->accept_socket))
236 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
237 unit_ref_unset(&s->accept_socket);
240 static void service_stop_watchdog(Service *s) {
243 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
244 s->watchdog_timestamp.realtime = 0;
245 s->watchdog_timestamp.monotonic = 0;
248 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
250 static void service_handle_watchdog(Service *s) {
256 if (s->watchdog_usec == 0)
259 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
260 if (offset >= s->watchdog_usec) {
261 log_error("%s watchdog timeout!", UNIT(s)->id);
262 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
266 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
268 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
271 static void service_reset_watchdog(Service *s) {
274 dual_timestamp_get(&s->watchdog_timestamp);
275 service_handle_watchdog(s);
278 static void service_done(Unit *u) {
279 Service *s = SERVICE(u);
286 #ifdef HAVE_SYSV_COMPAT
287 free(s->sysv_runlevels);
288 s->sysv_runlevels = NULL;
291 free(s->status_text);
292 s->status_text = NULL;
294 exec_context_done(&s->exec_context);
295 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
296 s->control_command = NULL;
297 s->main_command = NULL;
299 /* This will leak a process, but at least no memory or any of
301 service_unwatch_main_pid(s);
302 service_unwatch_control_pid(s);
303 service_unwatch_pid_file(s);
306 unit_unwatch_bus_name(u, s->bus_name);
311 service_close_socket_fd(s);
312 service_connection_unref(s);
314 unit_ref_unset(&s->accept_socket);
316 service_stop_watchdog(s);
318 unit_unwatch_timer(u, &s->timer_watch);
321 #ifdef HAVE_SYSV_COMPAT
322 static char *sysv_translate_name(const char *name) {
325 if (!(r = new(char, strlen(name) + sizeof(".service"))))
328 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
329 if (endswith(name, ".sh"))
330 /* Drop Debian-style .sh suffix */
331 strcpy(stpcpy(r, name) - 3, ".service");
334 if (startswith(name, "boot."))
335 /* Drop SuSE-style boot. prefix */
336 strcpy(stpcpy(r, name + 5), ".service");
338 #ifdef TARGET_FRUGALWARE
339 if (startswith(name, "rc."))
340 /* Drop Frugalware-style rc. prefix */
341 strcpy(stpcpy(r, name + 3), ".service");
344 /* Normal init scripts */
345 strcpy(stpcpy(r, name), ".service");
350 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
352 /* We silently ignore the $ prefix here. According to the LSB
353 * spec it simply indicates whether something is a
354 * standardized name or a distribution-specific one. Since we
355 * just follow what already exists and do not introduce new
356 * uses or names we don't care who introduced a new name. */
358 static const char * const table[] = {
359 /* LSB defined facilities */
360 "local_fs", SPECIAL_LOCAL_FS_TARGET,
361 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
363 /* Due to unfortunate name selection in Mandriva,
364 * $network is provided by network-up which is ordered
365 * after network which actually starts interfaces.
366 * To break the loop, just ignore it */
367 "network", SPECIAL_NETWORK_TARGET,
369 "named", SPECIAL_NSS_LOOKUP_TARGET,
370 "portmap", SPECIAL_RPCBIND_TARGET,
371 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
372 "syslog", SPECIAL_SYSLOG_TARGET,
373 "time", SPECIAL_TIME_SYNC_TARGET,
375 /* common extensions */
376 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
377 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
380 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
381 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
385 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
386 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
387 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
391 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
402 n = *name == '$' ? name + 1 : name;
404 for (i = 0; i < ELEMENTSOF(table); i += 2) {
406 if (!streq(table[i], n))
412 if (!(r = strdup(table[i+1])))
418 /* If we don't know this name, fallback heuristics to figure
419 * out whether something is a target or a service alias. */
422 if (!unit_prefix_is_valid(n))
425 /* Facilities starting with $ are most likely targets */
426 r = unit_name_build(n, NULL, ".target");
427 } else if (filename && streq(name, filename))
428 /* Names equaling the file name of the services are redundant */
431 /* Everything else we assume to be normal service names */
432 r = sysv_translate_name(n);
443 static int sysv_fix_order(Service *s) {
449 if (s->sysv_start_priority < 0)
452 /* For each pair of services where at least one lacks a LSB
453 * header, we use the start priority value to order things. */
455 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
458 bool special_s, special_t;
465 if (UNIT(t)->load_state != UNIT_LOADED)
468 if (t->sysv_start_priority < 0)
471 /* If both units have modern headers we don't care
472 * about the priorities */
473 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
474 (UNIT(t)->fragment_path || t->sysv_has_lsb))
477 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
478 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
480 if (special_t && !special_s)
482 else if (special_s && !special_t)
484 else if (t->sysv_start_priority < s->sysv_start_priority)
486 else if (t->sysv_start_priority > s->sysv_start_priority)
491 /* FIXME: Maybe we should compare the name here lexicographically? */
493 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
500 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
503 if (!(c = new0(ExecCommand, 1)))
506 if (!(c->path = strdup(path))) {
511 if (!(c->argv = strv_new(path, arg1, NULL))) {
520 static int sysv_exec_commands(Service *s) {
525 assert(UNIT(s)->source_path);
527 c = exec_command_new(UNIT(s)->source_path, "start");
530 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
532 c = exec_command_new(UNIT(s)->source_path, "stop");
535 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
537 c = exec_command_new(UNIT(s)->source_path, "reload");
540 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
545 static int service_load_sysv_path(Service *s, const char *path) {
556 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
564 f = fopen(path, "re");
566 r = errno == ENOENT ? 0 : -errno;
571 if (fstat(fileno(f), &st) < 0) {
576 free(u->source_path);
577 u->source_path = strdup(path);
578 if (!u->source_path) {
582 u->source_mtime = timespec_load(&st.st_mtim);
584 if (null_or_empty(&st)) {
585 u->load_state = UNIT_MASKED;
593 char l[LINE_MAX], *t;
595 if (!fgets(l, sizeof(l), f)) {
600 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
610 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
612 s->sysv_has_lsb = true;
616 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
622 t += strspn(t, WHITESPACE);
624 if (state == NORMAL) {
626 /* Try to parse Red Hat style chkconfig headers */
628 if (startswith_no_case(t, "chkconfig:")) {
630 char runlevels[16], *k;
634 if (sscanf(t+10, "%15s %i %*i",
636 &start_priority) != 2) {
638 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
642 /* A start priority gathered from the
643 * symlink farms is preferred over the
644 * data from the LSB header. */
645 if (start_priority < 0 || start_priority > 99)
646 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
648 s->sysv_start_priority = start_priority;
650 char_array_0(runlevels);
651 k = delete_chars(runlevels, WHITESPACE "-");
656 if (!(d = strdup(k))) {
661 free(s->sysv_runlevels);
662 s->sysv_runlevels = d;
665 } else if (startswith_no_case(t, "description:")) {
667 size_t k = strlen(t);
671 if (t[k-1] == '\\') {
676 if ((j = strstrip(t+12)) && *j) {
677 if (!(d = strdup(j))) {
684 free(chkconfig_description);
685 chkconfig_description = d;
687 } else if (startswith_no_case(t, "pidfile:")) {
694 if (!path_is_absolute(fn)) {
695 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
699 if (!(fn = strdup(fn))) {
708 } else if (state == DESCRIPTION) {
710 /* Try to parse Red Hat style description
713 size_t k = strlen(t);
721 if ((j = strstrip(t)) && *j) {
724 if (chkconfig_description)
725 d = join(chkconfig_description, " ", j, NULL);
734 free(chkconfig_description);
735 chkconfig_description = d;
738 } else if (state == LSB || state == LSB_DESCRIPTION) {
740 if (startswith_no_case(t, "Provides:")) {
746 FOREACH_WORD_QUOTED(w, z, t+9, i) {
749 if (!(n = strndup(w, z))) {
754 r = sysv_translate_facility(n, path_get_file_name(path), &m);
763 if (unit_name_to_type(m) == UNIT_SERVICE)
764 r = unit_add_name(u, m);
771 * indication that the
773 * now available. This
776 * targets do NOT pull
779 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
782 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
787 } else if (startswith_no_case(t, "Required-Start:") ||
788 startswith_no_case(t, "Should-Start:") ||
789 startswith_no_case(t, "X-Start-Before:") ||
790 startswith_no_case(t, "X-Start-After:")) {
796 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
799 if (!(n = strndup(w, z))) {
804 r = sysv_translate_facility(n, path_get_file_name(path), &m);
807 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
817 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
820 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
824 } else if (startswith_no_case(t, "Default-Start:")) {
829 k = delete_chars(t+14, WHITESPACE "-");
832 if (!(d = strdup(k))) {
837 free(s->sysv_runlevels);
838 s->sysv_runlevels = d;
841 } else if (startswith_no_case(t, "Description:")) {
844 state = LSB_DESCRIPTION;
846 if ((j = strstrip(t+12)) && *j) {
847 if (!(d = strdup(j))) {
854 free(long_description);
855 long_description = d;
857 } else if (startswith_no_case(t, "Short-Description:")) {
862 if ((j = strstrip(t+18)) && *j) {
863 if (!(d = strdup(j))) {
870 free(short_description);
871 short_description = d;
873 } else if (state == LSB_DESCRIPTION) {
875 if (startswith(l, "#\t") || startswith(l, "# ")) {
878 if ((j = strstrip(t)) && *j) {
881 if (long_description)
882 d = join(long_description, " ", t, NULL);
891 free(long_description);
892 long_description = d;
901 if ((r = sysv_exec_commands(s)) < 0)
903 if (s->sysv_runlevels &&
904 chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) &&
905 chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
906 /* Service has both boot and "up" runlevels
907 configured. Kill the "up" ones. */
908 delete_chars(s->sysv_runlevels, RUNLEVELS_UP);
911 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
912 /* If there a runlevels configured for this service
913 * but none of the standard ones, then we assume this
914 * is some special kind of service (which might be
915 * needed for early boot) and don't create any links
918 UNIT(s)->default_dependencies = false;
920 /* Don't timeout special services during boot (like fsck) */
923 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
925 /* Special setting for all SysV services */
926 s->type = SERVICE_FORKING;
927 s->remain_after_exit = !s->pid_file;
928 s->guess_main_pid = false;
929 s->restart = SERVICE_RESTART_NO;
930 s->exec_context.ignore_sigpipe = false;
932 if (UNIT(s)->manager->sysv_console)
933 s->exec_context.std_output = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
935 s->exec_context.kill_mode = KILL_PROCESS;
937 /* We use the long description only if
938 * no short description is set. */
940 if (short_description)
941 description = short_description;
942 else if (chkconfig_description)
943 description = chkconfig_description;
944 else if (long_description)
945 description = long_description;
952 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
960 /* The priority that has been set in /etc/rcN.d/ hierarchies
961 * takes precedence over what is stored as default in the LSB
963 if (s->sysv_start_priority_from_rcnd >= 0)
964 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
966 u->load_state = UNIT_LOADED;
974 free(short_description);
975 free(long_description);
976 free(chkconfig_description);
981 static int service_load_sysv_name(Service *s, const char *name) {
987 /* For SysV services we strip the boot.*, rc.* and *.sh
988 * prefixes/suffixes. */
989 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
990 if (endswith(name, ".sh.service"))
995 if (startswith(name, "boot."))
999 #ifdef TARGET_FRUGALWARE
1000 if (startswith(name, "rc."))
1004 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
1008 path = join(*p, "/", name, NULL);
1012 assert(endswith(path, ".service"));
1013 path[strlen(path)-8] = 0;
1015 r = service_load_sysv_path(s, path);
1017 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1018 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1019 /* Try Debian style *.sh source'able init scripts */
1020 strcat(path, ".sh");
1021 r = service_load_sysv_path(s, path);
1027 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1028 /* Try SUSE style boot.* init scripts */
1030 path = join(*p, "/boot.", name, NULL);
1034 /* Drop .service suffix */
1035 path[strlen(path)-8] = 0;
1036 r = service_load_sysv_path(s, path);
1041 #ifdef TARGET_FRUGALWARE
1042 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1043 /* Try Frugalware style rc.* init scripts */
1045 path = join(*p, "/rc.", name, NULL);
1049 /* Drop .service suffix */
1050 path[strlen(path)-8] = 0;
1051 r = service_load_sysv_path(s, path);
1059 if ((UNIT(s)->load_state != UNIT_STUB))
1066 static int service_load_sysv(Service *s) {
1073 /* Load service data from SysV init scripts, preferably with
1074 * LSB headers ... */
1076 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1079 if ((t = UNIT(s)->id))
1080 if ((r = service_load_sysv_name(s, t)) < 0)
1083 if (UNIT(s)->load_state == UNIT_STUB)
1084 SET_FOREACH(t, UNIT(s)->names, i) {
1085 if (t == UNIT(s)->id)
1088 if ((r = service_load_sysv_name(s, t)) < 0)
1091 if (UNIT(s)->load_state != UNIT_STUB)
1099 static int fsck_fix_order(Service *s) {
1105 if (s->fsck_passno <= 0)
1108 /* For each pair of services where both have an fsck priority
1109 * we order things based on it. */
1111 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1120 if (UNIT(t)->load_state != UNIT_LOADED)
1123 if (t->fsck_passno <= 0)
1126 if (t->fsck_passno < s->fsck_passno)
1128 else if (t->fsck_passno > s->fsck_passno)
1133 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1140 static int service_verify(Service *s) {
1143 if (UNIT(s)->load_state != UNIT_LOADED)
1146 if (!s->exec_command[SERVICE_EXEC_START]) {
1147 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1151 if (s->type != SERVICE_ONESHOT &&
1152 s->exec_command[SERVICE_EXEC_START]->command_next) {
1153 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1157 if (s->type == SERVICE_ONESHOT &&
1158 s->exec_command[SERVICE_EXEC_RELOAD]) {
1159 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1163 if (s->type == SERVICE_DBUS && !s->bus_name) {
1164 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1168 if (s->bus_name && s->type != SERVICE_DBUS)
1169 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1171 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1172 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1179 static int service_add_default_dependencies(Service *s) {
1184 /* Add a number of automatic dependencies useful for the
1185 * majority of services. */
1187 /* First, pull in base system */
1188 if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
1190 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1193 } else if (UNIT(s)->manager->running_as == MANAGER_USER) {
1195 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1199 /* Second, activate normal shutdown */
1200 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1203 static void service_fix_output(Service *s) {
1206 /* If nothing has been explicitly configured, patch default
1207 * output in. If input is socket/tty we avoid this however,
1208 * since in that case we want output to default to the same
1209 * place as we read input from. */
1211 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1212 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1213 s->exec_context.std_input == EXEC_INPUT_NULL)
1214 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1216 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1217 s->exec_context.std_input == EXEC_INPUT_NULL)
1218 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1221 static int service_load(Unit *u) {
1223 Service *s = SERVICE(u);
1227 /* Load a .service file */
1228 if ((r = unit_load_fragment(u)) < 0)
1231 #ifdef HAVE_SYSV_COMPAT
1232 /* Load a classic init script as a fallback, if we couldn't find anything */
1233 if (u->load_state == UNIT_STUB)
1234 if ((r = service_load_sysv(s)) < 0)
1238 /* Still nothing found? Then let's give up */
1239 if (u->load_state == UNIT_STUB)
1242 /* We were able to load something, then let's add in the
1243 * dropin directories. */
1244 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1247 /* This is a new unit? Then let's add in some extras */
1248 if (u->load_state == UNIT_LOADED) {
1249 if (s->type == _SERVICE_TYPE_INVALID)
1250 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1252 /* Oneshot services have disabled timeout by default */
1253 if (s->type == SERVICE_ONESHOT && !s->timeout_defined)
1254 s->timeout_usec = 0;
1256 service_fix_output(s);
1258 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1261 if ((r = unit_add_default_cgroups(u)) < 0)
1264 #ifdef HAVE_SYSV_COMPAT
1265 if ((r = sysv_fix_order(s)) < 0)
1269 if ((r = fsck_fix_order(s)) < 0)
1273 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1276 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1277 s->notify_access = NOTIFY_MAIN;
1279 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1280 s->notify_access = NOTIFY_MAIN;
1282 if (s->type == SERVICE_DBUS || s->bus_name)
1283 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1286 if (UNIT(s)->default_dependencies)
1287 if ((r = service_add_default_dependencies(s)) < 0)
1291 return service_verify(s);
1294 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1296 ServiceExecCommand c;
1297 Service *s = SERVICE(u);
1298 const char *prefix2;
1303 p2 = strappend(prefix, "\t");
1304 prefix2 = p2 ? p2 : prefix;
1307 "%sService State: %s\n"
1309 "%sReload Result: %s\n"
1310 "%sPermissionsStartOnly: %s\n"
1311 "%sRootDirectoryStartOnly: %s\n"
1312 "%sRemainAfterExit: %s\n"
1313 "%sGuessMainPID: %s\n"
1316 "%sNotifyAccess: %s\n",
1317 prefix, service_state_to_string(s->state),
1318 prefix, service_result_to_string(s->result),
1319 prefix, service_result_to_string(s->reload_result),
1320 prefix, yes_no(s->permissions_start_only),
1321 prefix, yes_no(s->root_directory_start_only),
1322 prefix, yes_no(s->remain_after_exit),
1323 prefix, yes_no(s->guess_main_pid),
1324 prefix, service_type_to_string(s->type),
1325 prefix, service_restart_to_string(s->restart),
1326 prefix, notify_access_to_string(s->notify_access));
1328 if (s->control_pid > 0)
1330 "%sControl PID: %lu\n",
1331 prefix, (unsigned long) s->control_pid);
1333 if (s->main_pid > 0)
1336 "%sMain PID Known: %s\n"
1337 "%sMain PID Alien: %s\n",
1338 prefix, (unsigned long) s->main_pid,
1339 prefix, yes_no(s->main_pid_known),
1340 prefix, yes_no(s->main_pid_alien));
1345 prefix, s->pid_file);
1350 "%sBus Name Good: %s\n",
1351 prefix, s->bus_name,
1352 prefix, yes_no(s->bus_name_good));
1354 exec_context_dump(&s->exec_context, f, prefix);
1356 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1358 if (!s->exec_command[c])
1361 fprintf(f, "%s-> %s:\n",
1362 prefix, service_exec_command_to_string(c));
1364 exec_command_dump_list(s->exec_command[c], f, prefix2);
1367 #ifdef HAVE_SYSV_COMPAT
1370 "%sSysV Init Script has LSB Header: %s\n"
1371 "%sSysVEnabled: %s\n",
1372 prefix, yes_no(s->sysv_has_lsb),
1373 prefix, yes_no(s->sysv_enabled));
1375 if (s->sysv_start_priority >= 0)
1377 "%sSysVStartPriority: %i\n",
1378 prefix, s->sysv_start_priority);
1380 if (s->sysv_runlevels)
1381 fprintf(f, "%sSysVRunLevels: %s\n",
1382 prefix, s->sysv_runlevels);
1385 if (s->fsck_passno > 0)
1387 "%sFsckPassNo: %i\n",
1388 prefix, s->fsck_passno);
1391 fprintf(f, "%sStatus Text: %s\n",
1392 prefix, s->status_text);
1397 static int service_load_pid_file(Service *s, bool may_warn) {
1407 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1409 log_info("PID file %s not readable (yet?) after %s.",
1410 s->pid_file, service_state_to_string(s->state));
1414 r = parse_pid(k, &pid);
1420 if (kill(pid, 0) < 0 && errno != EPERM) {
1422 log_info("PID %lu read from file %s does not exist.",
1423 (unsigned long) pid, s->pid_file);
1427 if (s->main_pid_known) {
1428 if (pid == s->main_pid)
1431 log_debug("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("Main PID loaded: %lu", (unsigned long) pid);
1438 if ((r = service_set_main_pid(s, pid)) < 0)
1441 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1442 /* FIXME: we need to do something here */
1448 static int service_search_main_pid(Service *s) {
1454 /* If we know it anyway, don't ever fallback to unreliable
1456 if (s->main_pid_known)
1459 if (!s->guess_main_pid)
1462 assert(s->main_pid <= 0);
1464 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1467 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1468 if ((r = service_set_main_pid(s, pid)) < 0)
1471 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1472 /* FIXME: we need to do something here */
1478 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1484 /* Notifies all our sockets when we die */
1486 if (s->socket_fd >= 0)
1489 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1490 if (u->type == UNIT_SOCKET)
1491 socket_notify_service_dead(SOCKET(u), failed_permanent);
1496 static void service_set_state(Service *s, ServiceState state) {
1497 ServiceState old_state;
1498 const UnitActiveState *table;
1501 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1503 old_state = s->state;
1506 service_unwatch_pid_file(s);
1508 if (state != SERVICE_START_PRE &&
1509 state != SERVICE_START &&
1510 state != SERVICE_START_POST &&
1511 state != SERVICE_RELOAD &&
1512 state != SERVICE_STOP &&
1513 state != SERVICE_STOP_SIGTERM &&
1514 state != SERVICE_STOP_SIGKILL &&
1515 state != SERVICE_STOP_POST &&
1516 state != SERVICE_FINAL_SIGTERM &&
1517 state != SERVICE_FINAL_SIGKILL &&
1518 state != SERVICE_AUTO_RESTART)
1519 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1521 if (state != SERVICE_START &&
1522 state != SERVICE_START_POST &&
1523 state != SERVICE_RUNNING &&
1524 state != SERVICE_RELOAD &&
1525 state != SERVICE_STOP &&
1526 state != SERVICE_STOP_SIGTERM &&
1527 state != SERVICE_STOP_SIGKILL) {
1528 service_unwatch_main_pid(s);
1529 s->main_command = NULL;
1532 if (state != SERVICE_START_PRE &&
1533 state != SERVICE_START &&
1534 state != SERVICE_START_POST &&
1535 state != SERVICE_RELOAD &&
1536 state != SERVICE_STOP &&
1537 state != SERVICE_STOP_SIGTERM &&
1538 state != SERVICE_STOP_SIGKILL &&
1539 state != SERVICE_STOP_POST &&
1540 state != SERVICE_FINAL_SIGTERM &&
1541 state != SERVICE_FINAL_SIGKILL) {
1542 service_unwatch_control_pid(s);
1543 s->control_command = NULL;
1544 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1547 if (state == SERVICE_DEAD ||
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_FAILED ||
1555 state == SERVICE_AUTO_RESTART)
1556 service_notify_sockets_dead(s, false);
1558 if (state != SERVICE_START_PRE &&
1559 state != SERVICE_START &&
1560 state != SERVICE_START_POST &&
1561 state != SERVICE_RUNNING &&
1562 state != SERVICE_RELOAD &&
1563 state != SERVICE_STOP &&
1564 state != SERVICE_STOP_SIGTERM &&
1565 state != SERVICE_STOP_SIGKILL &&
1566 state != SERVICE_STOP_POST &&
1567 state != SERVICE_FINAL_SIGTERM &&
1568 state != SERVICE_FINAL_SIGKILL &&
1569 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1570 service_close_socket_fd(s);
1571 service_connection_unref(s);
1574 if (state == SERVICE_STOP)
1575 service_stop_watchdog(s);
1577 /* For the inactive states unit_notify() will trim the cgroup,
1578 * but for exit we have to do that ourselves... */
1579 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1580 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1582 if (old_state != state)
1583 log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
1585 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1586 s->reload_result = SERVICE_SUCCESS;
1589 static int service_coldplug(Unit *u) {
1590 Service *s = SERVICE(u);
1594 assert(s->state == SERVICE_DEAD);
1596 if (s->deserialized_state != s->state) {
1598 if (s->deserialized_state == SERVICE_START_PRE ||
1599 s->deserialized_state == SERVICE_START ||
1600 s->deserialized_state == SERVICE_START_POST ||
1601 s->deserialized_state == SERVICE_RELOAD ||
1602 s->deserialized_state == SERVICE_STOP ||
1603 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1604 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1605 s->deserialized_state == SERVICE_STOP_POST ||
1606 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1607 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1608 s->deserialized_state == SERVICE_AUTO_RESTART) {
1610 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1613 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1615 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1620 if ((s->deserialized_state == SERVICE_START &&
1621 (s->type == SERVICE_FORKING ||
1622 s->type == SERVICE_DBUS ||
1623 s->type == SERVICE_ONESHOT ||
1624 s->type == SERVICE_NOTIFY)) ||
1625 s->deserialized_state == SERVICE_START_POST ||
1626 s->deserialized_state == SERVICE_RUNNING ||
1627 s->deserialized_state == SERVICE_RELOAD ||
1628 s->deserialized_state == SERVICE_STOP ||
1629 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1630 s->deserialized_state == SERVICE_STOP_SIGKILL)
1631 if (s->main_pid > 0)
1632 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1635 if (s->deserialized_state == SERVICE_START_PRE ||
1636 s->deserialized_state == SERVICE_START ||
1637 s->deserialized_state == SERVICE_START_POST ||
1638 s->deserialized_state == SERVICE_RELOAD ||
1639 s->deserialized_state == SERVICE_STOP ||
1640 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1641 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1642 s->deserialized_state == SERVICE_STOP_POST ||
1643 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1644 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1645 if (s->control_pid > 0)
1646 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1649 if (s->deserialized_state == SERVICE_START_POST ||
1650 s->deserialized_state == SERVICE_RUNNING)
1651 service_handle_watchdog(s);
1653 service_set_state(s, s->deserialized_state);
1658 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1662 unsigned rn_fds = 0;
1669 if (s->socket_fd >= 0)
1672 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1677 if (u->type != UNIT_SOCKET)
1682 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1694 if (!(t = new(int, rn_fds+cn_fds))) {
1700 memcpy(t, rfds, rn_fds * sizeof(int));
1701 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1706 rn_fds = rn_fds+cn_fds;
1721 static int service_spawn(
1726 bool apply_permissions,
1728 bool apply_tty_stdin,
1729 bool set_notify_socket,
1735 int *fds = NULL, *fdsbuf = NULL;
1736 unsigned n_fds = 0, n_env = 0;
1737 char **argv = NULL, **final_env = NULL, **our_env = NULL;
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 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1759 if (timeout && s->timeout_usec) {
1760 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1763 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1765 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1770 if (!(our_env = new0(char*, 4))) {
1775 if (set_notify_socket)
1776 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1781 if (s->main_pid > 0)
1782 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1787 if (s->watchdog_usec > 0)
1788 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1793 if (!(final_env = strv_env_merge(2,
1794 UNIT(s)->manager->environment,
1809 UNIT(s)->manager->confirm_spawn,
1810 UNIT(s)->cgroup_bondings,
1811 UNIT(s)->cgroup_attributes,
1812 is_control ? "control" : NULL,
1813 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1820 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1821 /* FIXME: we need to do something here */
1827 strv_free(final_env);
1837 strv_free(final_env);
1840 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1845 static int main_pid_good(Service *s) {
1848 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1851 /* If we know the pid file, then lets just check if it is
1853 if (s->main_pid_known) {
1855 /* If it's an alien child let's check if it is still
1857 if (s->main_pid_alien)
1858 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1860 /* .. otherwise assume we'll get a SIGCHLD for it,
1861 * which we really should wait for to collect exit
1862 * status and code */
1863 return s->main_pid > 0;
1866 /* We don't know the pid */
1870 static int control_pid_good(Service *s) {
1873 return s->control_pid > 0;
1876 static int cgroup_good(Service *s) {
1881 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1887 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1891 if (f != SERVICE_SUCCESS)
1894 if (allow_restart &&
1895 !s->forbid_restart &&
1896 (s->restart == SERVICE_RESTART_ALWAYS ||
1897 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1898 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1899 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1900 s->result == SERVICE_FAILURE_CORE_DUMP)))) {
1902 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1906 service_set_state(s, SERVICE_AUTO_RESTART);
1908 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1910 s->forbid_restart = false;
1915 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1916 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1919 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1921 static void service_enter_stop_post(Service *s, ServiceResult f) {
1925 if (f != SERVICE_SUCCESS)
1928 service_unwatch_control_pid(s);
1930 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1931 s->control_command_id = SERVICE_EXEC_STOP_POST;
1933 r = service_spawn(s,
1937 !s->permissions_start_only,
1938 !s->root_directory_start_only,
1947 service_set_state(s, SERVICE_STOP_POST);
1949 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1954 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1955 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1958 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1960 Set *pid_set = NULL;
1961 bool wait_for_exit = false;
1965 if (f != SERVICE_SUCCESS)
1968 if (s->exec_context.kill_mode != KILL_NONE) {
1969 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1971 if (s->main_pid > 0) {
1972 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1973 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1975 wait_for_exit = !s->main_pid_alien;
1978 if (s->control_pid > 0) {
1979 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1980 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1982 wait_for_exit = true;
1985 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1987 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1992 /* Exclude the main/control pids from being killed via the cgroup */
1993 if (s->main_pid > 0)
1994 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1997 if (s->control_pid > 0)
1998 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
2001 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
2003 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2004 log_warning("Failed to kill control group: %s", strerror(-r));
2006 wait_for_exit = true;
2013 if (wait_for_exit) {
2014 if (s->timeout_usec > 0)
2015 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
2018 service_set_state(s, state);
2019 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2020 service_enter_stop_post(s, SERVICE_SUCCESS);
2022 service_enter_dead(s, SERVICE_SUCCESS, true);
2027 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2029 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2030 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2032 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2038 static void service_enter_stop(Service *s, ServiceResult f) {
2043 if (f != SERVICE_SUCCESS)
2046 service_unwatch_control_pid(s);
2048 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2049 s->control_command_id = SERVICE_EXEC_STOP;
2051 r = service_spawn(s,
2055 !s->permissions_start_only,
2056 !s->root_directory_start_only,
2064 service_set_state(s, SERVICE_STOP);
2066 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2071 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2072 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2075 static void service_enter_running(Service *s, ServiceResult f) {
2076 int main_pid_ok, cgroup_ok;
2079 if (f != SERVICE_SUCCESS)
2082 main_pid_ok = main_pid_good(s);
2083 cgroup_ok = cgroup_good(s);
2085 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2086 (s->bus_name_good || s->type != SERVICE_DBUS))
2087 service_set_state(s, SERVICE_RUNNING);
2088 else if (s->remain_after_exit)
2089 service_set_state(s, SERVICE_EXITED);
2091 service_enter_stop(s, SERVICE_SUCCESS);
2094 static void service_enter_start_post(Service *s) {
2098 service_unwatch_control_pid(s);
2100 if (s->watchdog_usec > 0)
2101 service_reset_watchdog(s);
2103 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2104 s->control_command_id = SERVICE_EXEC_START_POST;
2106 r = service_spawn(s,
2110 !s->permissions_start_only,
2111 !s->root_directory_start_only,
2119 service_set_state(s, SERVICE_START_POST);
2121 service_enter_running(s, SERVICE_SUCCESS);
2126 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2127 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2130 static void service_enter_start(Service *s) {
2137 assert(s->exec_command[SERVICE_EXEC_START]);
2138 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2140 if (s->type == SERVICE_FORKING)
2141 service_unwatch_control_pid(s);
2143 service_unwatch_main_pid(s);
2145 /* We want to ensure that nobody leaks processes from
2146 * START_PRE here, so let's go on a killing spree, People
2147 * should not spawn long running processes from START_PRE. */
2148 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2150 if (s->type == SERVICE_FORKING) {
2151 s->control_command_id = SERVICE_EXEC_START;
2152 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2154 s->main_command = NULL;
2156 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2157 s->control_command = NULL;
2159 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2162 r = service_spawn(s,
2164 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2169 s->notify_access != NOTIFY_NONE,
2175 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2176 /* For simple services we immediately start
2177 * the START_POST binaries. */
2179 service_set_main_pid(s, pid);
2180 service_enter_start_post(s);
2182 } else if (s->type == SERVICE_FORKING) {
2184 /* For forking services we wait until the start
2185 * process exited. */
2187 s->control_pid = pid;
2188 service_set_state(s, SERVICE_START);
2190 } else if (s->type == SERVICE_ONESHOT ||
2191 s->type == SERVICE_DBUS ||
2192 s->type == SERVICE_NOTIFY) {
2194 /* For oneshot services we wait until the start
2195 * process exited, too, but it is our main process. */
2197 /* For D-Bus services we know the main pid right away,
2198 * but wait for the bus name to appear on the
2199 * bus. Notify services are similar. */
2201 service_set_main_pid(s, pid);
2202 service_set_state(s, SERVICE_START);
2204 assert_not_reached("Unknown service type");
2209 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2210 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2213 static void service_enter_start_pre(Service *s) {
2218 service_unwatch_control_pid(s);
2220 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2222 /* Before we start anything, let's clear up what might
2223 * be left from previous runs. */
2224 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2226 s->control_command_id = SERVICE_EXEC_START_PRE;
2228 r = service_spawn(s,
2232 !s->permissions_start_only,
2233 !s->root_directory_start_only,
2241 service_set_state(s, SERVICE_START_PRE);
2243 service_enter_start(s);
2248 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2249 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2252 static void service_enter_restart(Service *s) {
2257 dbus_error_init(&error);
2260 log_info("Job pending for unit, delaying automatic restart.");
2262 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2268 /* Any units that are bound to this service must also be
2269 * restarted. We use JOB_RESTART (instead of the more obvious
2270 * JOB_START) here so that those dependency jobs will be added
2272 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2276 log_debug("%s scheduled restart job.", UNIT(s)->id);
2280 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2281 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2283 dbus_error_free(&error);
2286 static void service_enter_reload(Service *s) {
2291 service_unwatch_control_pid(s);
2293 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2294 s->control_command_id = SERVICE_EXEC_RELOAD;
2296 r = service_spawn(s,
2300 !s->permissions_start_only,
2301 !s->root_directory_start_only,
2309 service_set_state(s, SERVICE_RELOAD);
2311 service_enter_running(s, SERVICE_SUCCESS);
2316 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2317 s->reload_result = SERVICE_FAILURE_RESOURCES;
2318 service_enter_running(s, SERVICE_SUCCESS);
2321 static void service_run_next_control(Service *s) {
2325 assert(s->control_command);
2326 assert(s->control_command->command_next);
2328 assert(s->control_command_id != SERVICE_EXEC_START);
2330 s->control_command = s->control_command->command_next;
2331 service_unwatch_control_pid(s);
2333 r = service_spawn(s,
2337 !s->permissions_start_only,
2338 !s->root_directory_start_only,
2339 s->control_command_id == SERVICE_EXEC_START_PRE ||
2340 s->control_command_id == SERVICE_EXEC_STOP_POST,
2350 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2352 if (s->state == SERVICE_START_PRE)
2353 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2354 else if (s->state == SERVICE_STOP)
2355 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2356 else if (s->state == SERVICE_STOP_POST)
2357 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2358 else if (s->state == SERVICE_RELOAD) {
2359 s->reload_result = SERVICE_FAILURE_RESOURCES;
2360 service_enter_running(s, SERVICE_SUCCESS);
2362 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2365 static void service_run_next_main(Service *s) {
2370 assert(s->main_command);
2371 assert(s->main_command->command_next);
2372 assert(s->type == SERVICE_ONESHOT);
2374 s->main_command = s->main_command->command_next;
2375 service_unwatch_main_pid(s);
2377 r = service_spawn(s,
2384 s->notify_access != NOTIFY_NONE,
2390 service_set_main_pid(s, pid);
2395 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2396 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2399 static int service_start_limit_test(Service *s) {
2402 if (ratelimit_test(&s->start_limit))
2405 switch (s->start_limit_action) {
2407 case SERVICE_START_LIMIT_NONE:
2408 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2411 case SERVICE_START_LIMIT_REBOOT: {
2415 dbus_error_init(&error);
2417 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2419 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2421 log_error("Failed to reboot: %s.", bus_error(&error, r));
2422 dbus_error_free(&error);
2428 case SERVICE_START_LIMIT_REBOOT_FORCE:
2429 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2430 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2433 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2434 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2435 reboot(RB_AUTOBOOT);
2439 log_error("start limit action=%i", s->start_limit_action);
2440 assert_not_reached("Unknown StartLimitAction.");
2446 static int service_start(Unit *u) {
2447 Service *s = SERVICE(u);
2452 /* We cannot fulfill this request right now, try again later
2454 if (s->state == SERVICE_STOP ||
2455 s->state == SERVICE_STOP_SIGTERM ||
2456 s->state == SERVICE_STOP_SIGKILL ||
2457 s->state == SERVICE_STOP_POST ||
2458 s->state == SERVICE_FINAL_SIGTERM ||
2459 s->state == SERVICE_FINAL_SIGKILL)
2462 /* Already on it! */
2463 if (s->state == SERVICE_START_PRE ||
2464 s->state == SERVICE_START ||
2465 s->state == SERVICE_START_POST)
2468 /* A service that will be restarted must be stopped first to
2469 * trigger BindTo and/or OnFailure dependencies. If a user
2470 * does not want to wait for the holdoff time to elapse, the
2471 * service should be manually restarted, not started. */
2472 if (s->state == SERVICE_AUTO_RESTART) {
2473 log_warning("%s automatic restart is pending, must be stopped before issuing start request.", UNIT(s)->id);
2477 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2479 /* Make sure we don't enter a busy loop of some kind. */
2480 r = service_start_limit_test(s);
2482 service_notify_sockets_dead(s, true);
2486 s->result = SERVICE_SUCCESS;
2487 s->reload_result = SERVICE_SUCCESS;
2488 s->main_pid_known = false;
2489 s->main_pid_alien = false;
2490 s->forbid_restart = false;
2492 service_enter_start_pre(s);
2496 static int service_stop(Unit *u) {
2497 Service *s = SERVICE(u);
2501 /* Don't create restart jobs from here. */
2502 s->forbid_restart = true;
2505 if (s->state == SERVICE_STOP ||
2506 s->state == SERVICE_STOP_SIGTERM ||
2507 s->state == SERVICE_STOP_SIGKILL ||
2508 s->state == SERVICE_STOP_POST ||
2509 s->state == SERVICE_FINAL_SIGTERM ||
2510 s->state == SERVICE_FINAL_SIGKILL)
2513 /* A restart will be scheduled or is in progress. */
2514 if (s->state == SERVICE_AUTO_RESTART) {
2515 service_enter_dead(s, SERVICE_SUCCESS, false);
2519 /* If there's already something running we go directly into
2521 if (s->state == SERVICE_START_PRE ||
2522 s->state == SERVICE_START ||
2523 s->state == SERVICE_START_POST ||
2524 s->state == SERVICE_RELOAD) {
2525 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2529 assert(s->state == SERVICE_RUNNING ||
2530 s->state == SERVICE_EXITED);
2532 service_enter_stop(s, SERVICE_SUCCESS);
2536 static int service_reload(Unit *u) {
2537 Service *s = SERVICE(u);
2541 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2543 service_enter_reload(s);
2547 static bool service_can_reload(Unit *u) {
2548 Service *s = SERVICE(u);
2552 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2555 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2556 Service *s = SERVICE(u);
2562 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2563 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2564 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2566 if (s->control_pid > 0)
2567 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2569 if (s->main_pid_known && s->main_pid > 0)
2570 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2572 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2575 unit_serialize_item(u, f, "status-text", s->status_text);
2577 /* FIXME: There's a minor uncleanliness here: if there are
2578 * multiple commands attached here, we will start from the
2579 * first one again */
2580 if (s->control_command_id >= 0)
2581 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2583 if (s->socket_fd >= 0) {
2586 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2589 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2592 if (s->main_exec_status.pid > 0) {
2593 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2594 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2595 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2597 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2598 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2599 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2602 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2603 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2608 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2609 Service *s = SERVICE(u);
2616 if (streq(key, "state")) {
2619 if ((state = service_state_from_string(value)) < 0)
2620 log_debug("Failed to parse state value %s", value);
2622 s->deserialized_state = state;
2623 } else if (streq(key, "result")) {
2626 f = service_result_from_string(value);
2628 log_debug("Failed to parse result value %s", value);
2629 else if (f != SERVICE_SUCCESS)
2632 } else if (streq(key, "reload-result")) {
2635 f = service_result_from_string(value);
2637 log_debug("Failed to parse reload result value %s", value);
2638 else if (f != SERVICE_SUCCESS)
2639 s->reload_result = f;
2641 } else if (streq(key, "control-pid")) {
2644 if (parse_pid(value, &pid) < 0)
2645 log_debug("Failed to parse control-pid value %s", value);
2647 s->control_pid = pid;
2648 } else if (streq(key, "main-pid")) {
2651 if (parse_pid(value, &pid) < 0)
2652 log_debug("Failed to parse main-pid value %s", value);
2654 service_set_main_pid(s, (pid_t) pid);
2655 } else if (streq(key, "main-pid-known")) {
2658 if ((b = parse_boolean(value)) < 0)
2659 log_debug("Failed to parse main-pid-known value %s", value);
2661 s->main_pid_known = b;
2662 } else if (streq(key, "status-text")) {
2665 if ((t = strdup(value))) {
2666 free(s->status_text);
2670 } else if (streq(key, "control-command")) {
2671 ServiceExecCommand id;
2673 if ((id = service_exec_command_from_string(value)) < 0)
2674 log_debug("Failed to parse exec-command value %s", value);
2676 s->control_command_id = id;
2677 s->control_command = s->exec_command[id];
2679 } else if (streq(key, "socket-fd")) {
2682 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2683 log_debug("Failed to parse socket-fd value %s", value);
2686 if (s->socket_fd >= 0)
2687 close_nointr_nofail(s->socket_fd);
2688 s->socket_fd = fdset_remove(fds, fd);
2690 } else if (streq(key, "main-exec-status-pid")) {
2693 if (parse_pid(value, &pid) < 0)
2694 log_debug("Failed to parse main-exec-status-pid value %s", value);
2696 s->main_exec_status.pid = pid;
2697 } else if (streq(key, "main-exec-status-code")) {
2700 if (safe_atoi(value, &i) < 0)
2701 log_debug("Failed to parse main-exec-status-code value %s", value);
2703 s->main_exec_status.code = i;
2704 } else if (streq(key, "main-exec-status-status")) {
2707 if (safe_atoi(value, &i) < 0)
2708 log_debug("Failed to parse main-exec-status-status value %s", value);
2710 s->main_exec_status.status = i;
2711 } else if (streq(key, "main-exec-status-start"))
2712 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2713 else if (streq(key, "main-exec-status-exit"))
2714 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2715 else if (streq(key, "watchdog-timestamp"))
2716 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2718 log_debug("Unknown serialization key '%s'", key);
2723 static UnitActiveState service_active_state(Unit *u) {
2724 const UnitActiveState *table;
2728 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2730 return table[SERVICE(u)->state];
2733 static const char *service_sub_state_to_string(Unit *u) {
2736 return service_state_to_string(SERVICE(u)->state);
2739 static bool service_check_gc(Unit *u) {
2740 Service *s = SERVICE(u);
2744 /* Never clean up services that still have a process around,
2745 * even if the service is formally dead. */
2746 if (cgroup_good(s) > 0 ||
2747 main_pid_good(s) > 0 ||
2748 control_pid_good(s) > 0)
2751 #ifdef HAVE_SYSV_COMPAT
2759 static bool service_check_snapshot(Unit *u) {
2760 Service *s = SERVICE(u);
2764 return !s->got_socket_fd;
2767 static int service_retry_pid_file(Service *s) {
2770 assert(s->pid_file);
2771 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2773 r = service_load_pid_file(s, false);
2777 service_unwatch_pid_file(s);
2779 service_enter_running(s, SERVICE_SUCCESS);
2783 static int service_watch_pid_file(Service *s) {
2786 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2787 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2791 /* the pidfile might have appeared just before we set the watch */
2792 service_retry_pid_file(s);
2796 log_error("Failed to set a watch for %s's PID file %s: %s",
2797 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2798 service_unwatch_pid_file(s);
2802 static int service_demand_pid_file(Service *s) {
2805 assert(s->pid_file);
2806 assert(!s->pid_file_pathspec);
2808 ps = new0(PathSpec, 1);
2812 ps->path = strdup(s->pid_file);
2818 path_kill_slashes(ps->path);
2820 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2821 * keep their PID file open all the time. */
2822 ps->type = PATH_MODIFIED;
2823 ps->inotify_fd = -1;
2825 s->pid_file_pathspec = ps;
2827 return service_watch_pid_file(s);
2830 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2831 Service *s = SERVICE(u);
2835 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2836 assert(s->pid_file_pathspec);
2837 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2839 log_debug("inotify event for %s", u->id);
2841 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2844 if (service_retry_pid_file(s) == 0)
2847 if (service_watch_pid_file(s) < 0)
2852 service_unwatch_pid_file(s);
2853 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2856 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2857 Service *s = SERVICE(u);
2863 if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status))
2864 f = SERVICE_SUCCESS;
2865 else if (code == CLD_EXITED)
2866 f = SERVICE_FAILURE_EXIT_CODE;
2867 else if (code == CLD_KILLED)
2868 f = SERVICE_FAILURE_SIGNAL;
2869 else if (code == CLD_DUMPED)
2870 f = SERVICE_FAILURE_CORE_DUMP;
2872 assert_not_reached("Unknown code");
2874 if (s->main_pid == pid) {
2875 /* Forking services may occasionally move to a new PID.
2876 * As long as they update the PID file before exiting the old
2877 * PID, they're fine. */
2878 if (service_load_pid_file(s, false) == 0)
2882 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2884 /* If this is not a forking service than the main
2885 * process got started and hence we copy the exit
2886 * status so that it is recorded both as main and as
2887 * control process exit status */
2888 if (s->main_command) {
2889 s->main_command->exec_status = s->main_exec_status;
2891 if (s->main_command->ignore)
2892 f = SERVICE_SUCCESS;
2895 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2896 "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status);
2898 if (f != SERVICE_SUCCESS)
2901 if (s->main_command &&
2902 s->main_command->command_next &&
2903 f == SERVICE_SUCCESS) {
2905 /* There is another command to *
2906 * execute, so let's do that. */
2908 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2909 service_run_next_main(s);
2913 /* The service exited, so the service is officially
2915 s->main_command = NULL;
2919 case SERVICE_START_POST:
2920 case SERVICE_RELOAD:
2922 /* Need to wait until the operation is
2927 if (s->type == SERVICE_ONESHOT) {
2928 /* This was our main goal, so let's go on */
2929 if (f == SERVICE_SUCCESS)
2930 service_enter_start_post(s);
2932 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2935 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2940 case SERVICE_RUNNING:
2941 service_enter_running(s, f);
2944 case SERVICE_STOP_SIGTERM:
2945 case SERVICE_STOP_SIGKILL:
2947 if (!control_pid_good(s))
2948 service_enter_stop_post(s, f);
2950 /* If there is still a control process, wait for that first */
2954 assert_not_reached("Uh, main process died at wrong time.");
2958 } else if (s->control_pid == pid) {
2962 if (s->control_command) {
2963 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2965 if (s->control_command->ignore)
2966 f = SERVICE_SUCCESS;
2969 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2970 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2972 if (f != SERVICE_SUCCESS)
2975 /* Immediately get rid of the cgroup, so that the
2976 * kernel doesn't delay the cgroup empty messages for
2977 * the service cgroup any longer than necessary */
2978 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2980 if (s->control_command &&
2981 s->control_command->command_next &&
2982 f == SERVICE_SUCCESS) {
2984 /* There is another command to *
2985 * execute, so let's do that. */
2987 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
2988 service_run_next_control(s);
2991 /* No further commands for this step, so let's
2992 * figure out what to do next */
2994 s->control_command = NULL;
2995 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2997 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
3001 case SERVICE_START_PRE:
3002 if (f == SERVICE_SUCCESS)
3003 service_enter_start(s);
3005 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3009 assert(s->type == SERVICE_FORKING);
3011 if (f != SERVICE_SUCCESS) {
3012 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3017 bool has_start_post;
3020 /* Let's try to load the pid file here if we can.
3021 * The PID file might actually be created by a START_POST
3022 * script. In that case don't worry if the loading fails. */
3024 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3025 r = service_load_pid_file(s, !has_start_post);
3026 if (!has_start_post && r < 0) {
3027 r = service_demand_pid_file(s);
3028 if (r < 0 || !cgroup_good(s))
3029 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3033 service_search_main_pid(s);
3035 service_enter_start_post(s);
3038 case SERVICE_START_POST:
3039 if (f != SERVICE_SUCCESS) {
3040 service_enter_stop(s, f);
3047 r = service_load_pid_file(s, true);
3049 r = service_demand_pid_file(s);
3050 if (r < 0 || !cgroup_good(s))
3051 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3055 service_search_main_pid(s);
3057 service_enter_running(s, SERVICE_SUCCESS);
3060 case SERVICE_RELOAD:
3061 if (f == SERVICE_SUCCESS) {
3062 service_load_pid_file(s, true);
3063 service_search_main_pid(s);
3066 s->reload_result = f;
3067 service_enter_running(s, SERVICE_SUCCESS);
3071 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3074 case SERVICE_STOP_SIGTERM:
3075 case SERVICE_STOP_SIGKILL:
3076 if (main_pid_good(s) <= 0)
3077 service_enter_stop_post(s, f);
3079 /* If there is still a service
3080 * process around, wait until
3081 * that one quit, too */
3084 case SERVICE_STOP_POST:
3085 case SERVICE_FINAL_SIGTERM:
3086 case SERVICE_FINAL_SIGKILL:
3087 service_enter_dead(s, f, true);
3091 assert_not_reached("Uh, control process died at wrong time.");
3096 /* Notify clients about changed exit status */
3097 unit_add_to_dbus_queue(u);
3100 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3101 Service *s = SERVICE(u);
3104 assert(elapsed == 1);
3106 if (w == &s->watchdog_watch) {
3107 service_handle_watchdog(s);
3111 assert(w == &s->timer_watch);
3115 case SERVICE_START_PRE:
3117 log_warning("%s operation timed out. Terminating.", u->id);
3118 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3121 case SERVICE_START_POST:
3122 log_warning("%s operation timed out. Stopping.", u->id);
3123 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3126 case SERVICE_RELOAD:
3127 log_warning("%s operation timed out. Stopping.", u->id);
3128 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3129 service_enter_running(s, SERVICE_SUCCESS);
3133 log_warning("%s stopping timed out. Terminating.", u->id);
3134 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3137 case SERVICE_STOP_SIGTERM:
3138 if (s->exec_context.send_sigkill) {
3139 log_warning("%s stopping timed out. Killing.", u->id);
3140 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3142 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3143 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3148 case SERVICE_STOP_SIGKILL:
3149 /* Uh, we sent a SIGKILL and it is still not gone?
3150 * Must be something we cannot kill, so let's just be
3151 * weirded out and continue */
3153 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3154 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3157 case SERVICE_STOP_POST:
3158 log_warning("%s stopping timed out (2). Terminating.", u->id);
3159 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3162 case SERVICE_FINAL_SIGTERM:
3163 if (s->exec_context.send_sigkill) {
3164 log_warning("%s stopping timed out (2). Killing.", u->id);
3165 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3167 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3168 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3173 case SERVICE_FINAL_SIGKILL:
3174 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3175 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3178 case SERVICE_AUTO_RESTART:
3179 log_info("%s holdoff time over, scheduling restart.", u->id);
3180 service_enter_restart(s);
3184 assert_not_reached("Timeout at wrong time.");
3188 static void service_cgroup_notify_event(Unit *u) {
3189 Service *s = SERVICE(u);
3193 log_debug("%s: cgroup is empty", u->id);
3197 /* Waiting for SIGCHLD is usually more interesting,
3198 * because it includes return codes/signals. Which is
3199 * why we ignore the cgroup events for most cases,
3200 * except when we don't know pid which to expect the
3204 case SERVICE_START_POST:
3205 /* If we were hoping for the daemon to write its PID file,
3206 * we can give up now. */
3207 if (s->pid_file_pathspec) {
3208 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3209 service_unwatch_pid_file(s);
3210 if (s->state == SERVICE_START)
3211 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3213 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3217 case SERVICE_RUNNING:
3218 /* service_enter_running() will figure out what to do */
3219 service_enter_running(s, SERVICE_SUCCESS);
3222 case SERVICE_STOP_SIGTERM:
3223 case SERVICE_STOP_SIGKILL:
3225 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3226 service_enter_stop_post(s, SERVICE_SUCCESS);
3230 case SERVICE_FINAL_SIGTERM:
3231 case SERVICE_FINAL_SIGKILL:
3232 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3233 service_enter_dead(s, SERVICE_SUCCESS, SERVICE_SUCCESS);
3242 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3243 Service *s = SERVICE(u);
3248 if (s->notify_access == NOTIFY_NONE) {
3249 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3250 u->id, (unsigned long) pid);
3254 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3255 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3256 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3260 log_debug("%s: Got message", u->id);
3262 /* Interpret MAINPID= */
3263 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3264 (s->state == SERVICE_START ||
3265 s->state == SERVICE_START_POST ||
3266 s->state == SERVICE_RUNNING ||
3267 s->state == SERVICE_RELOAD)) {
3269 if (parse_pid(e + 8, &pid) < 0)
3270 log_warning("Failed to parse notification message %s", e);
3272 log_debug("%s: got %s", u->id, e);
3273 service_set_main_pid(s, pid);
3277 /* Interpret READY= */
3278 if (s->type == SERVICE_NOTIFY &&
3279 s->state == SERVICE_START &&
3280 strv_find(tags, "READY=1")) {
3281 log_debug("%s: got READY=1", u->id);
3283 service_enter_start_post(s);
3286 /* Interpret STATUS= */
3287 e = strv_find_prefix(tags, "STATUS=");
3293 if (!utf8_is_valid(e+7)) {
3294 log_warning("Status message in notification is not UTF-8 clean.");
3300 log_error("Failed to allocate string.");
3304 log_debug("%s: got %s", u->id, e);
3306 free(s->status_text);
3309 free(s->status_text);
3310 s->status_text = NULL;
3314 if (strv_find(tags, "WATCHDOG=1")) {
3315 log_debug("%s: got WATCHDOG=1", u->id);
3316 service_reset_watchdog(s);
3319 /* Notify clients about changed status or main pid */
3320 unit_add_to_dbus_queue(u);
3323 #ifdef HAVE_SYSV_COMPAT
3326 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3330 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3331 r = errno == ENOENT ? 0 : -errno;
3336 char l[LINE_MAX], *t;
3337 char **parsed = NULL;
3339 if (!fgets(l, sizeof(l), f)) {
3344 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3349 if (*t != '$' && *t != '<')
3352 parsed = strv_split(t,WHITESPACE);
3353 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3354 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3357 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3359 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3361 char *dep = NULL, *name, **j;
3363 STRV_FOREACH (j, parsed+1) {
3372 if (sysv_translate_facility(name, NULL, &dep) < 0)
3375 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3390 static int service_enumerate(Manager *m) {
3394 char *path = NULL, *fpath = NULL, *name = NULL;
3395 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3402 if (m->running_as != MANAGER_SYSTEM)
3405 zero(runlevel_services);
3407 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3408 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3412 path = join(*p, "/", rcnd_table[i].path, NULL);
3421 if (!(d = opendir(path))) {
3422 if (errno != ENOENT)
3423 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3428 while ((de = readdir(d))) {
3431 if (ignore_file(de->d_name))
3434 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3437 if (strlen(de->d_name) < 4)
3440 a = undecchar(de->d_name[1]);
3441 b = undecchar(de->d_name[2]);
3447 fpath = join(path, "/", de->d_name, NULL);
3453 if (access(fpath, X_OK) < 0) {
3455 if (errno != ENOENT)
3456 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3462 if (!(name = sysv_translate_name(de->d_name + 3))) {
3467 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3468 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3472 if (de->d_name[0] == 'S') {
3474 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3475 SERVICE(service)->sysv_start_priority_from_rcnd =
3476 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3478 SERVICE(service)->sysv_enabled = true;
3481 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3484 if ((r = set_put(runlevel_services[i], service)) < 0)
3487 } else if (de->d_name[0] == 'K' &&
3488 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3489 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3491 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3494 if ((r = set_put(shutdown_services, service)) < 0)
3500 /* Now we loaded all stubs and are aware of the lowest
3501 start-up priority for all services, not let's actually load
3502 the services, this will also tell us which services are
3503 actually native now */
3504 manager_dispatch_load_queue(m);
3506 /* If this is a native service, rely on native ways to pull in
3507 * a service, don't pull it in via sysv rcN.d links. */
3508 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3509 SET_FOREACH(service, runlevel_services[i], j) {
3510 service = unit_follow_merge(service);
3512 if (service->fragment_path)
3515 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3519 /* We honour K links only for halt/reboot. For the normal
3520 * runlevels we assume the stop jobs will be implicitly added
3521 * by the core logic. Also, we don't really distinguish here
3522 * between the runlevels 0 and 6 and just add them to the
3523 * special shutdown target. On SUSE the boot.d/ runlevel is
3524 * also used for shutdown, so we add links for that too to the
3525 * shutdown target.*/
3526 SET_FOREACH(service, shutdown_services, j) {
3527 service = unit_follow_merge(service);
3529 if (service->fragment_path)
3532 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3539 sysv_facility_in_insserv_conf (m);
3547 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3548 set_free(runlevel_services[i]);
3549 set_free(shutdown_services);
3558 static void service_bus_name_owner_change(
3561 const char *old_owner,
3562 const char *new_owner) {
3564 Service *s = SERVICE(u);
3569 assert(streq(s->bus_name, name));
3570 assert(old_owner || new_owner);
3572 if (old_owner && new_owner)
3573 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3575 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3577 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3579 s->bus_name_good = !!new_owner;
3581 if (s->type == SERVICE_DBUS) {
3583 /* service_enter_running() will figure out what to
3585 if (s->state == SERVICE_RUNNING)
3586 service_enter_running(s, SERVICE_SUCCESS);
3587 else if (s->state == SERVICE_START && new_owner)
3588 service_enter_start_post(s);
3590 } else if (new_owner &&
3592 (s->state == SERVICE_START ||
3593 s->state == SERVICE_START_POST ||
3594 s->state == SERVICE_RUNNING ||
3595 s->state == SERVICE_RELOAD)) {
3597 /* Try to acquire PID from bus service */
3598 log_debug("Trying to acquire PID from D-Bus name...");
3600 bus_query_pid(u->manager, name);
3604 static void service_bus_query_pid_done(
3609 Service *s = SERVICE(u);
3614 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3616 if (s->main_pid <= 0 &&
3617 (s->state == SERVICE_START ||
3618 s->state == SERVICE_START_POST ||
3619 s->state == SERVICE_RUNNING ||
3620 s->state == SERVICE_RELOAD))
3621 service_set_main_pid(s, pid);
3624 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3629 /* This is called by the socket code when instantiating a new
3630 * service for a stream socket and the socket needs to be
3633 if (UNIT(s)->load_state != UNIT_LOADED)
3636 if (s->socket_fd >= 0)
3639 if (s->state != SERVICE_DEAD)
3643 s->got_socket_fd = true;
3645 unit_ref_set(&s->accept_socket, UNIT(sock));
3647 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3650 static void service_reset_failed(Unit *u) {
3651 Service *s = SERVICE(u);
3655 if (s->state == SERVICE_FAILED)
3656 service_set_state(s, SERVICE_DEAD);
3658 s->result = SERVICE_SUCCESS;
3659 s->reload_result = SERVICE_SUCCESS;
3662 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3663 Service *s = SERVICE(u);
3665 Set *pid_set = NULL;
3669 if (s->main_pid <= 0 && who == KILL_MAIN) {
3670 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3674 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3675 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3679 if (who == KILL_CONTROL || who == KILL_ALL)
3680 if (s->control_pid > 0)
3681 if (kill(s->control_pid, signo) < 0)
3684 if (who == KILL_MAIN || who == KILL_ALL)
3685 if (s->main_pid > 0)
3686 if (kill(s->main_pid, signo) < 0)
3689 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3692 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3695 /* Exclude the control/main pid from being killed via the cgroup */
3696 if (s->control_pid > 0)
3697 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3702 if (s->main_pid > 0)
3703 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3707 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3709 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3720 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3721 [SERVICE_DEAD] = "dead",
3722 [SERVICE_START_PRE] = "start-pre",
3723 [SERVICE_START] = "start",
3724 [SERVICE_START_POST] = "start-post",
3725 [SERVICE_RUNNING] = "running",
3726 [SERVICE_EXITED] = "exited",
3727 [SERVICE_RELOAD] = "reload",
3728 [SERVICE_STOP] = "stop",
3729 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3730 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3731 [SERVICE_STOP_POST] = "stop-post",
3732 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3733 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3734 [SERVICE_FAILED] = "failed",
3735 [SERVICE_AUTO_RESTART] = "auto-restart",
3738 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3740 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3741 [SERVICE_RESTART_NO] = "no",
3742 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3743 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3744 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3745 [SERVICE_RESTART_ALWAYS] = "always"
3748 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3750 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3751 [SERVICE_SIMPLE] = "simple",
3752 [SERVICE_FORKING] = "forking",
3753 [SERVICE_ONESHOT] = "oneshot",
3754 [SERVICE_DBUS] = "dbus",
3755 [SERVICE_NOTIFY] = "notify",
3756 [SERVICE_IDLE] = "idle"
3759 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3761 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3762 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3763 [SERVICE_EXEC_START] = "ExecStart",
3764 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3765 [SERVICE_EXEC_RELOAD] = "ExecReload",
3766 [SERVICE_EXEC_STOP] = "ExecStop",
3767 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3770 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3772 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3773 [NOTIFY_NONE] = "none",
3774 [NOTIFY_MAIN] = "main",
3775 [NOTIFY_ALL] = "all"
3778 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3780 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3781 [SERVICE_SUCCESS] = "success",
3782 [SERVICE_FAILURE_RESOURCES] = "resources",
3783 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3784 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3785 [SERVICE_FAILURE_SIGNAL] = "signal",
3786 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3787 [SERVICE_FAILURE_WATCHDOG] = "watchdog"
3790 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3792 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3793 [SERVICE_START_LIMIT_NONE] = "none",
3794 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3795 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3796 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3798 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3800 const UnitVTable service_vtable = {
3801 .suffix = ".service",
3802 .object_size = sizeof(Service),
3808 .init = service_init,
3809 .done = service_done,
3810 .load = service_load,
3812 .coldplug = service_coldplug,
3814 .dump = service_dump,
3816 .start = service_start,
3817 .stop = service_stop,
3818 .reload = service_reload,
3820 .can_reload = service_can_reload,
3822 .kill = service_kill,
3824 .serialize = service_serialize,
3825 .deserialize_item = service_deserialize_item,
3827 .active_state = service_active_state,
3828 .sub_state_to_string = service_sub_state_to_string,
3830 .check_gc = service_check_gc,
3831 .check_snapshot = service_check_snapshot,
3833 .sigchld_event = service_sigchld_event,
3834 .timer_event = service_timer_event,
3835 .fd_event = service_fd_event,
3837 .reset_failed = service_reset_failed,
3839 .cgroup_notify_empty = service_cgroup_notify_event,
3840 .notify_message = service_notify_message,
3842 .bus_name_owner_change = service_bus_name_owner_change,
3843 .bus_query_pid_done = service_bus_query_pid_done,
3845 .bus_interface = "org.freedesktop.systemd1.Service",
3846 .bus_message_handler = bus_service_message_handler,
3847 .bus_invalidating_properties = bus_service_invalidating_properties,
3849 #ifdef HAVE_SYSV_COMPAT
3850 .enumerate = service_enumerate,
3852 .status_message_formats = {
3853 .starting_stopping = {
3854 [0] = "Starting %s...",
3855 [1] = "Stopping %s...",
3857 .finished_start_job = {
3858 [JOB_DONE] = "Started %s.",
3859 [JOB_FAILED] = "Failed to start %s.",
3860 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3861 [JOB_TIMEOUT] = "Timed out starting %s.",
3863 .finished_stop_job = {
3864 [JOB_DONE] = "Stopped %s.",
3865 [JOB_FAILED] = "Stopped (with error) %s.",
3866 [JOB_TIMEOUT] = "Timed out stopping %s.",