1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
29 #include "load-fragment.h"
30 #include "load-dropin.h"
33 #include "unit-name.h"
34 #include "dbus-service.h"
37 #define COMMENTS "#;\n"
38 #define NEWLINES "\n\r"
41 typedef enum RunlevelType {
50 const RunlevelType type;
52 /* Standard SysV runlevels */
53 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
54 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
55 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
56 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
57 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
58 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
59 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN },
61 /* SUSE style boot.d */
62 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
64 /* Debian style rcS.d */
65 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
68 #define RUNLEVELS_UP "12345"
69 /* #define RUNLEVELS_DOWN "06" */
70 /* #define RUNLEVELS_BOOT "bBsS" */
72 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
73 [SERVICE_DEAD] = UNIT_INACTIVE,
74 [SERVICE_START_PRE] = UNIT_ACTIVATING,
75 [SERVICE_START] = UNIT_ACTIVATING,
76 [SERVICE_START_POST] = UNIT_ACTIVATING,
77 [SERVICE_RUNNING] = UNIT_ACTIVE,
78 [SERVICE_EXITED] = UNIT_ACTIVE,
79 [SERVICE_RELOAD] = UNIT_ACTIVE_RELOADING,
80 [SERVICE_STOP] = UNIT_DEACTIVATING,
81 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
82 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
83 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
84 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
85 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
86 [SERVICE_MAINTENANCE] = UNIT_INACTIVE,
87 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING,
90 static void service_init(Unit *u) {
91 Service *s = SERVICE(u);
94 assert(u->meta.load_state == UNIT_STUB);
96 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
97 s->restart_usec = DEFAULT_RESTART_USEC;
98 s->timer_watch.type = WATCH_INVALID;
99 s->sysv_start_priority = -1;
102 exec_context_init(&s->exec_context);
104 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
106 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
109 static void service_unwatch_control_pid(Service *s) {
112 if (s->control_pid <= 0)
115 unit_unwatch_pid(UNIT(s), s->control_pid);
119 static void service_unwatch_main_pid(Service *s) {
122 if (s->main_pid <= 0)
125 unit_unwatch_pid(UNIT(s), s->main_pid);
129 static int service_set_main_pid(Service *s, pid_t pid) {
140 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
141 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
142 s->meta.id, (unsigned long) pid);
145 s->main_pid_known = true;
150 static void service_close_socket_fd(Service *s) {
153 if (s->socket_fd < 0)
156 close_nointr_nofail(s->socket_fd);
160 static void service_done(Unit *u) {
161 Service *s = SERVICE(u);
171 free(s->sysv_runlevels);
172 s->sysv_runlevels = NULL;
174 free(s->status_text);
175 s->status_text = NULL;
177 exec_context_done(&s->exec_context);
178 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
179 s->control_command = NULL;
181 /* This will leak a process, but at least no memory or any of
183 service_unwatch_main_pid(s);
184 service_unwatch_control_pid(s);
187 unit_unwatch_bus_name(UNIT(u), s->bus_name);
192 service_close_socket_fd(s);
194 unit_unwatch_timer(u, &s->timer_watch);
197 static char *sysv_translate_name(const char *name) {
200 if (!(r = new(char, strlen(name) + sizeof(".service"))))
203 if (startswith(name, "boot."))
204 /* Drop SuSE-style boot. prefix */
205 strcpy(stpcpy(r, name + 5), ".service");
206 else if (endswith(name, ".sh"))
207 /* Drop Debian-style .sh suffix */
208 strcpy(stpcpy(r, name) - 3, ".service");
210 /* Normal init scripts */
211 strcpy(stpcpy(r, name), ".service");
216 static int sysv_translate_facility(const char *name, char **_r) {
218 static const char * const table[] = {
219 /* LSB defined facilities */
220 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
221 "$network", SPECIAL_NETWORK_TARGET,
222 "$named", SPECIAL_NSS_LOOKUP_TARGET,
223 "$portmap", SPECIAL_RPCBIND_TARGET,
224 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
225 "$syslog", SPECIAL_SYSLOG_TARGET,
226 "$time", SPECIAL_RTC_SET_TARGET,
228 /* Debian extensions */
229 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
230 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
231 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
237 for (i = 0; i < ELEMENTSOF(table); i += 2)
238 if (streq(table[i], name)) {
239 if (!(r = strdup(table[i+1])))
248 if (!(r = sysv_translate_name(name)))
259 static int sysv_fix_order(Service *s) {
265 if (s->sysv_start_priority < 0)
268 /* For each pair of services where at least one lacks a LSB
269 * header, we use the start priority value to order things. */
271 LIST_FOREACH(units_per_type, other, UNIT(s)->meta.manager->units_per_type[UNIT_SERVICE]) {
275 t = (Service*) other;
280 if (t->sysv_start_priority < 0)
283 /* If both units have modern headers we don't care
284 * about the priorities */
285 if ((!s->sysv_path || s->sysv_has_lsb) &&
286 (!t->sysv_path || t->sysv_has_lsb))
289 if (t->sysv_start_priority < s->sysv_start_priority)
291 else if (t->sysv_start_priority > s->sysv_start_priority)
296 /* FIXME: Maybe we should compare the name here lexicographically? */
298 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
305 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
308 if (!(c = new0(ExecCommand, 1)))
311 if (!(c->path = strdup(path))) {
316 if (!(c->argv = strv_new(path, arg1, NULL))) {
325 static int sysv_exec_commands(Service *s) {
329 assert(s->sysv_path);
331 if (!(c = exec_command_new(s->sysv_path, "start")))
333 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
335 if (!(c = exec_command_new(s->sysv_path, "stop")))
337 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
339 if (!(c = exec_command_new(s->sysv_path, "reload")))
341 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
346 static int service_load_sysv_path(Service *s, const char *path) {
363 if (!(f = fopen(path, "re"))) {
364 r = errno == ENOENT ? 0 : -errno;
369 if (!(s->sysv_path = strdup(path))) {
375 char l[LINE_MAX], *t;
377 if (!fgets(l, sizeof(l), f)) {
382 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
392 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
394 s->sysv_has_lsb = true;
398 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
404 t += strspn(t, WHITESPACE);
406 if (state == NORMAL) {
408 /* Try to parse Red Hat style chkconfig headers */
410 if (startswith_no_case(t, "chkconfig:")) {
412 char runlevels[16], *k;
416 if (sscanf(t+10, "%15s %i %*i",
418 &start_priority) != 2) {
420 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
424 /* A start priority gathered from the
425 * symlink farms is preferred over the
426 * data from the LSB header. */
427 if (start_priority < 0 || start_priority > 99)
428 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
429 else if (s->sysv_start_priority < 0)
430 s->sysv_start_priority = start_priority;
432 char_array_0(runlevels);
433 k = delete_chars(runlevels, WHITESPACE "-");
438 if (!(d = strdup(k))) {
443 free(s->sysv_runlevels);
444 s->sysv_runlevels = d;
447 } else if (startswith_no_case(t, "description:")) {
449 size_t k = strlen(t);
452 if (t[k-1] == '\\') {
457 if (!(d = strdup(strstrip(t+12)))) {
462 free(u->meta.description);
463 u->meta.description = d;
465 } else if (startswith_no_case(t, "pidfile:")) {
472 if (!path_is_absolute(fn)) {
473 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
477 if (!(fn = strdup(fn))) {
486 } else if (state == DESCRIPTION) {
488 /* Try to parse Red Hat style description
491 size_t k = strlen(t);
499 assert(u->meta.description);
500 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
505 free(u->meta.description);
506 u->meta.description = d;
508 } else if (state == LSB || state == LSB_DESCRIPTION) {
510 if (startswith_no_case(t, "Provides:")) {
516 FOREACH_WORD(w, z, t+9, i) {
519 if (!(n = strndup(w, z))) {
524 r = sysv_translate_facility(n, &m);
533 if (unit_name_to_type(m) == UNIT_SERVICE)
534 r = unit_add_name(u, m);
536 if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL, true)) >= 0)
537 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
546 } else if (startswith_no_case(t, "Required-Start:") ||
547 startswith_no_case(t, "Should-Start:") ||
548 startswith_no_case(t, "X-Start-Before:") ||
549 startswith_no_case(t, "X-Start-After:")) {
555 FOREACH_WORD(w, z, strchr(t, ':')+1, i) {
558 if (!(n = strndup(w, z))) {
563 r = sysv_translate_facility(n, &m);
572 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
578 } else if (startswith_no_case(t, "Default-Start:")) {
583 k = delete_chars(t+14, WHITESPACE "-");
586 if (!(d = strdup(k))) {
591 free(s->sysv_runlevels);
592 s->sysv_runlevels = d;
595 } else if (startswith_no_case(t, "Description:")) {
598 state = LSB_DESCRIPTION;
600 if (!(d = strdup(strstrip(t+12)))) {
605 free(u->meta.description);
606 u->meta.description = d;
608 } else if (startswith_no_case(t, "Short-Description:") &&
609 !u->meta.description) {
612 /* We use the short description only
613 * if no long description is set. */
617 if (!(d = strdup(strstrip(t+18)))) {
622 u->meta.description = d;
624 } else if (startswith_no_case(t, "X-Interactive:")) {
627 if ((b = parse_boolean(strstrip(t+14))) < 0) {
628 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
633 s->exec_context.std_input = EXEC_INPUT_TTY;
635 s->exec_context.std_input = EXEC_INPUT_NULL;
637 } else if (state == LSB_DESCRIPTION) {
639 if (startswith(l, "#\t") || startswith(l, "# ")) {
642 assert(u->meta.description);
643 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
648 free(u->meta.description);
649 u->meta.description = d;
656 if ((r = sysv_exec_commands(s)) < 0)
659 if (!s->sysv_runlevels || chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
660 /* If there a runlevels configured for this service
661 * but none of the standard ones, then we assume this
662 * is some special kind of service (which might be
663 * needed for early boot) and don't create any links
666 if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 ||
667 (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
671 /* Don't timeout special services during boot (like fsck) */
674 /* Special setting for all SysV services */
675 s->type = SERVICE_FORKING;
676 s->valid_no_process = true;
677 s->kill_mode = KILL_PROCESS_GROUP;
678 s->restart = SERVICE_ONCE;
680 u->meta.load_state = UNIT_LOADED;
691 static int service_load_sysv_name(Service *s, const char *name) {
697 /* For SysV services we strip the boot. or .sh
698 * prefixes/suffixes. */
699 if (startswith(name, "boot.") ||
700 endswith(name, ".sh.service"))
703 STRV_FOREACH(p, UNIT(s)->meta.manager->lookup_paths.sysvinit_path) {
707 if (asprintf(&path, "%s/%s", *p, name) < 0)
710 assert(endswith(path, ".service"));
711 path[strlen(path)-8] = 0;
713 r = service_load_sysv_path(s, path);
715 if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) {
716 /* Try Debian style xxx.sh source'able init scripts */
718 r = service_load_sysv_path(s, path);
723 if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) {
724 /* Try SUSE style boot.xxx init scripts */
726 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
729 path[strlen(path)-8] = 0;
730 r = service_load_sysv_path(s, path);
737 if ((UNIT(s)->meta.load_state != UNIT_STUB))
744 static int service_load_sysv(Service *s) {
751 /* Load service data from SysV init scripts, preferably with
754 if (strv_isempty(UNIT(s)->meta.manager->lookup_paths.sysvinit_path))
757 if ((t = UNIT(s)->meta.id))
758 if ((r = service_load_sysv_name(s, t)) < 0)
761 if (UNIT(s)->meta.load_state == UNIT_STUB)
762 SET_FOREACH(t, UNIT(s)->meta.names, i) {
763 if (t == UNIT(s)->meta.id)
766 if ((r == service_load_sysv_name(s, t)) < 0)
769 if (UNIT(s)->meta.load_state != UNIT_STUB)
776 static int service_add_bus_name(Service *s) {
783 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
786 r = unit_merge_by_name(UNIT(s), n);
792 static int service_verify(Service *s) {
795 if (UNIT(s)->meta.load_state != UNIT_LOADED)
798 if (!s->exec_command[SERVICE_EXEC_START]) {
799 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->meta.id);
803 if (s->type == SERVICE_DBUS && !s->bus_name) {
804 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->meta.id);
811 static int service_load(Unit *u) {
813 Service *s = SERVICE(u);
817 /* Load a .service file */
818 if ((r = unit_load_fragment(u)) < 0)
821 /* Load a classic init script as a fallback, if we couldn't find anything */
822 if (u->meta.load_state == UNIT_STUB)
823 if ((r = service_load_sysv(s)) < 0)
826 /* Still nothing found? Then let's give up */
827 if (u->meta.load_state == UNIT_STUB)
830 /* We were able to load something, then let's add in the
831 * dropin directories. */
832 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
835 /* This is a new unit? Then let's add in some extras */
836 if (u->meta.load_state == UNIT_LOADED) {
837 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
840 if ((r = unit_add_default_cgroup(u)) < 0)
843 if ((r = sysv_fix_order(s)) < 0)
847 if ((r = service_add_bus_name(s)) < 0)
850 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
855 return service_verify(s);
858 static void service_dump(Unit *u, FILE *f, const char *prefix) {
860 ServiceExecCommand c;
861 Service *s = SERVICE(u);
867 p2 = strappend(prefix, "\t");
868 prefix2 = p2 ? p2 : prefix;
871 "%sService State: %s\n"
872 "%sPermissionsStartOnly: %s\n"
873 "%sRootDirectoryStartOnly: %s\n"
874 "%sValidNoProcess: %s\n"
877 prefix, service_state_to_string(s->state),
878 prefix, yes_no(s->permissions_start_only),
879 prefix, yes_no(s->root_directory_start_only),
880 prefix, yes_no(s->valid_no_process),
881 prefix, kill_mode_to_string(s->kill_mode),
882 prefix, service_type_to_string(s->type));
884 if (s->control_pid > 0)
886 "%sControl PID: %llu\n",
887 prefix, (unsigned long long) s->control_pid);
891 "%sMain PID: %llu\n",
892 prefix, (unsigned long long) s->main_pid);
897 prefix, s->pid_file);
902 "%sBus Name Good: %s\n",
904 prefix, yes_no(s->bus_name_good));
906 exec_context_dump(&s->exec_context, f, prefix);
908 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
910 if (!s->exec_command[c])
913 fprintf(f, "%s-> %s:\n",
914 prefix, service_exec_command_to_string(c));
916 exec_command_dump_list(s->exec_command[c], f, prefix2);
921 "%sSysV Init Script Path: %s\n"
922 "%sSysV Init Script has LSB Header: %s\n",
923 prefix, s->sysv_path,
924 prefix, yes_no(s->sysv_has_lsb));
926 if (s->sysv_start_priority >= 0)
928 "%sSysVStartPriority: %i\n",
929 prefix, s->sysv_start_priority);
931 if (s->sysv_runlevels)
932 fprintf(f, "%sSysVRunLevels: %s\n",
933 prefix, s->sysv_runlevels);
936 fprintf(f, "%sStatus Text: %s\n",
937 prefix, s->status_text);
942 static int service_load_pid_file(Service *s) {
949 if (s->main_pid_known)
952 assert(s->main_pid <= 0);
957 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
960 r = parse_pid(k, &pid);
966 if (kill(pid, 0) < 0 && errno != EPERM) {
967 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
968 (unsigned long) pid, s->pid_file);
972 if ((r = service_set_main_pid(s, pid)) < 0)
975 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
976 /* FIXME: we need to do something here */
982 static int service_get_sockets(Service *s, Set **_set) {
991 /* Collects all Socket objects that belong to this
992 * service. Note that a service might have multiple sockets
993 * via multiple names. */
995 if (!(set = set_new(NULL, NULL)))
998 SET_FOREACH(t, UNIT(s)->meta.names, i) {
1002 /* Look for all socket objects that go by any of our
1003 * units and collect their fds */
1005 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1010 p = manager_get_unit(UNIT(s)->meta.manager, k);
1016 if ((r = set_put(set, p)) < 0)
1028 static int service_notify_sockets_dead(Service *s) {
1036 /* Notifies all our sockets when we die */
1037 if ((r = service_get_sockets(s, &set)) < 0)
1040 SET_FOREACH(sock, set, i)
1041 socket_notify_service_dead(sock);
1048 static void service_set_state(Service *s, ServiceState state) {
1049 ServiceState old_state;
1052 old_state = s->state;
1055 if (state != SERVICE_START_PRE &&
1056 state != SERVICE_START &&
1057 state != SERVICE_START_POST &&
1058 state != SERVICE_RELOAD &&
1059 state != SERVICE_STOP &&
1060 state != SERVICE_STOP_SIGTERM &&
1061 state != SERVICE_STOP_SIGKILL &&
1062 state != SERVICE_STOP_POST &&
1063 state != SERVICE_FINAL_SIGTERM &&
1064 state != SERVICE_FINAL_SIGKILL &&
1065 state != SERVICE_AUTO_RESTART)
1066 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1068 if (state != SERVICE_START &&
1069 state != SERVICE_START_POST &&
1070 state != SERVICE_RUNNING &&
1071 state != SERVICE_RELOAD &&
1072 state != SERVICE_STOP &&
1073 state != SERVICE_STOP_SIGTERM &&
1074 state != SERVICE_STOP_SIGKILL)
1075 service_unwatch_main_pid(s);
1077 if (state != SERVICE_START_PRE &&
1078 state != SERVICE_START &&
1079 state != SERVICE_START_POST &&
1080 state != SERVICE_RELOAD &&
1081 state != SERVICE_STOP &&
1082 state != SERVICE_STOP_SIGTERM &&
1083 state != SERVICE_STOP_SIGKILL &&
1084 state != SERVICE_STOP_POST &&
1085 state != SERVICE_FINAL_SIGTERM &&
1086 state != SERVICE_FINAL_SIGKILL) {
1087 service_unwatch_control_pid(s);
1088 s->control_command = NULL;
1089 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1092 if (state == SERVICE_DEAD ||
1093 state == SERVICE_STOP ||
1094 state == SERVICE_STOP_SIGTERM ||
1095 state == SERVICE_STOP_SIGKILL ||
1096 state == SERVICE_STOP_POST ||
1097 state == SERVICE_FINAL_SIGTERM ||
1098 state == SERVICE_FINAL_SIGKILL ||
1099 state == SERVICE_MAINTENANCE ||
1100 state == SERVICE_AUTO_RESTART)
1101 service_notify_sockets_dead(s);
1103 if (state != SERVICE_START_PRE &&
1104 state != SERVICE_START &&
1105 !(state == SERVICE_DEAD && UNIT(s)->meta.job))
1106 service_close_socket_fd(s);
1108 if (old_state != state)
1109 log_debug("%s changed %s -> %s", UNIT(s)->meta.id, service_state_to_string(old_state), service_state_to_string(state));
1111 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
1114 static int service_coldplug(Unit *u) {
1115 Service *s = SERVICE(u);
1119 assert(s->state == SERVICE_DEAD);
1121 if (s->deserialized_state != s->state) {
1123 if (s->deserialized_state == SERVICE_START_PRE ||
1124 s->deserialized_state == SERVICE_START ||
1125 s->deserialized_state == SERVICE_START_POST ||
1126 s->deserialized_state == SERVICE_RELOAD ||
1127 s->deserialized_state == SERVICE_STOP ||
1128 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1129 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1130 s->deserialized_state == SERVICE_STOP_POST ||
1131 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1132 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1133 s->deserialized_state == SERVICE_AUTO_RESTART) {
1135 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1138 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1140 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1145 if ((s->deserialized_state == SERVICE_START &&
1146 (s->type == SERVICE_FORKING ||
1147 s->type == SERVICE_DBUS ||
1148 s->type == SERVICE_FINISH ||
1149 s->type == SERVICE_NOTIFY)) ||
1150 s->deserialized_state == SERVICE_START_POST ||
1151 s->deserialized_state == SERVICE_RUNNING ||
1152 s->deserialized_state == SERVICE_RELOAD ||
1153 s->deserialized_state == SERVICE_STOP ||
1154 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1155 s->deserialized_state == SERVICE_STOP_SIGKILL)
1156 if (s->main_pid > 0)
1157 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1160 if (s->deserialized_state == SERVICE_START_PRE ||
1161 s->deserialized_state == SERVICE_START ||
1162 s->deserialized_state == SERVICE_START_POST ||
1163 s->deserialized_state == SERVICE_RELOAD ||
1164 s->deserialized_state == SERVICE_STOP ||
1165 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1166 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1167 s->deserialized_state == SERVICE_STOP_POST ||
1168 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1169 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1170 if (s->control_pid > 0)
1171 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1174 service_set_state(s, s->deserialized_state);
1180 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1184 unsigned rn_fds = 0;
1192 if ((r = service_get_sockets(s, &set)) < 0)
1195 SET_FOREACH(sock, set, i) {
1199 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1211 if (!(t = new(int, rn_fds+cn_fds))) {
1217 memcpy(t, rfds, rn_fds);
1218 memcpy(t+rn_fds, cfds, cn_fds);
1223 rn_fds = rn_fds+cn_fds;
1241 static int service_spawn(
1246 bool apply_permissions,
1261 if (s->socket_fd >= 0) {
1262 fds = &s->socket_fd;
1264 } else if ((r = service_collect_fds(s, &fds, &n_fds)) < 0)
1268 if (timeout && s->timeout_usec) {
1269 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1272 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1274 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1283 s->meta.manager->environment,
1286 UNIT(s)->meta.manager->confirm_spawn,
1287 UNIT(s)->meta.cgroup_bondings,
1295 if (s->socket_fd >= 0)
1296 service_close_socket_fd(s);
1301 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1302 /* FIXME: we need to do something here */
1313 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1318 static int main_pid_good(Service *s) {
1321 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1324 /* If we know the pid file, then lets just check if it is
1326 if (s->main_pid_known)
1327 return s->main_pid > 0;
1329 /* We don't know the pid */
1333 static int control_pid_good(Service *s) {
1336 return s->control_pid > 0;
1339 static int cgroup_good(Service *s) {
1344 if (s->valid_no_process)
1347 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->meta.cgroup_bondings)) < 0)
1353 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1360 if (allow_restart &&
1362 (s->restart == SERVICE_RESTART_ALWAYS ||
1363 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1365 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1368 service_set_state(s, SERVICE_AUTO_RESTART);
1370 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
1375 log_warning("%s failed to run install restart timer: %s", UNIT(s)->meta.id, strerror(-r));
1376 service_enter_dead(s, false, false);
1379 static void service_enter_signal(Service *s, ServiceState state, bool success);
1381 static void service_enter_stop_post(Service *s, bool success) {
1388 service_unwatch_control_pid(s);
1390 s->control_command_id = SERVICE_EXEC_STOP_POST;
1391 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1392 if ((r = service_spawn(s,
1396 !s->permissions_start_only,
1397 !s->root_directory_start_only,
1398 &s->control_pid)) < 0)
1402 service_set_state(s, SERVICE_STOP_POST);
1404 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1409 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->meta.id, strerror(-r));
1410 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1413 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1422 if (s->kill_mode != KILL_NONE) {
1423 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
1425 if (s->kill_mode == KILL_CONTROL_GROUP) {
1427 if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) {
1428 if (r != -EAGAIN && r != -ESRCH)
1437 if (s->main_pid > 0) {
1438 if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
1444 if (s->control_pid > 0) {
1445 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
1456 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
1457 if (s->timeout_usec > 0)
1458 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1461 service_set_state(s, state);
1462 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1463 service_enter_stop_post(s, true);
1465 service_enter_dead(s, true, true);
1470 log_warning("%s failed to kill processes: %s", UNIT(s)->meta.id, strerror(-r));
1472 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1473 service_enter_stop_post(s, false);
1475 service_enter_dead(s, false, true);
1478 static void service_enter_stop(Service *s, bool success) {
1486 service_unwatch_control_pid(s);
1488 s->control_command_id = SERVICE_EXEC_STOP;
1489 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1490 if ((r = service_spawn(s,
1494 !s->permissions_start_only,
1495 !s->root_directory_start_only,
1496 &s->control_pid)) < 0)
1499 service_set_state(s, SERVICE_STOP);
1501 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1506 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->meta.id, strerror(-r));
1507 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1510 static void service_enter_running(Service *s, bool success) {
1516 if (main_pid_good(s) != 0 &&
1517 cgroup_good(s) != 0 &&
1518 (s->bus_name_good || s->type != SERVICE_DBUS))
1519 service_set_state(s, SERVICE_RUNNING);
1520 else if (s->valid_no_process)
1521 service_set_state(s, SERVICE_EXITED);
1523 service_enter_stop(s, true);
1526 static void service_enter_start_post(Service *s) {
1530 service_unwatch_control_pid(s);
1532 s->control_command_id = SERVICE_EXEC_START_POST;
1533 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
1534 if ((r = service_spawn(s,
1538 !s->permissions_start_only,
1539 !s->root_directory_start_only,
1540 &s->control_pid)) < 0)
1543 service_set_state(s, SERVICE_START_POST);
1545 service_enter_running(s, true);
1550 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->meta.id, strerror(-r));
1551 service_enter_stop(s, false);
1554 static void service_enter_start(Service *s) {
1560 assert(s->exec_command[SERVICE_EXEC_START]);
1561 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1563 if (s->type == SERVICE_FORKING)
1564 service_unwatch_control_pid(s);
1566 service_unwatch_main_pid(s);
1568 if ((r = service_spawn(s,
1569 s->exec_command[SERVICE_EXEC_START],
1570 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
1577 if (s->type == SERVICE_SIMPLE) {
1578 /* For simple services we immediately start
1579 * the START_POST binaries. */
1581 service_set_main_pid(s, pid);
1582 service_enter_start_post(s);
1584 } else if (s->type == SERVICE_FORKING) {
1586 /* For forking services we wait until the start
1587 * process exited. */
1589 s->control_command_id = SERVICE_EXEC_START;
1590 s->control_command = s->exec_command[SERVICE_EXEC_START];
1592 s->control_pid = pid;
1593 service_set_state(s, SERVICE_START);
1595 } else if (s->type == SERVICE_FINISH ||
1596 s->type == SERVICE_DBUS ||
1597 s->type == SERVICE_NOTIFY) {
1599 /* For finishing services we wait until the start
1600 * process exited, too, but it is our main process. */
1602 /* For D-Bus services we know the main pid right away,
1603 * but wait for the bus name to appear on the
1604 * bus. Notify services are similar. */
1606 service_set_main_pid(s, pid);
1607 service_set_state(s, SERVICE_START);
1609 assert_not_reached("Unknown service type");
1614 log_warning("%s failed to run 'start' task: %s", UNIT(s)->meta.id, strerror(-r));
1615 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1618 static void service_enter_start_pre(Service *s) {
1623 service_unwatch_control_pid(s);
1625 s->control_command_id = SERVICE_EXEC_START_PRE;
1626 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
1627 if ((r = service_spawn(s,
1631 !s->permissions_start_only,
1632 !s->root_directory_start_only,
1633 &s->control_pid)) < 0)
1636 service_set_state(s, SERVICE_START_PRE);
1638 service_enter_start(s);
1643 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->meta.id, strerror(-r));
1644 service_enter_dead(s, false, true);
1647 static void service_enter_restart(Service *s) {
1651 service_enter_dead(s, true, false);
1653 if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
1656 log_debug("%s scheduled restart job.", UNIT(s)->meta.id);
1661 log_warning("%s failed to schedule restart job: %s", UNIT(s)->meta.id, strerror(-r));
1662 service_enter_dead(s, false, false);
1665 static void service_enter_reload(Service *s) {
1670 service_unwatch_control_pid(s);
1672 s->control_command_id = SERVICE_EXEC_RELOAD;
1673 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
1674 if ((r = service_spawn(s,
1678 !s->permissions_start_only,
1679 !s->root_directory_start_only,
1680 &s->control_pid)) < 0)
1683 service_set_state(s, SERVICE_RELOAD);
1685 service_enter_running(s, true);
1690 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->meta.id, strerror(-r));
1691 service_enter_stop(s, false);
1694 static void service_run_next(Service *s, bool success) {
1698 assert(s->control_command);
1699 assert(s->control_command->command_next);
1704 s->control_command = s->control_command->command_next;
1706 service_unwatch_control_pid(s);
1708 if ((r = service_spawn(s,
1712 !s->permissions_start_only,
1713 !s->root_directory_start_only,
1714 &s->control_pid)) < 0)
1720 log_warning("%s failed to run spawn next task: %s", UNIT(s)->meta.id, strerror(-r));
1722 if (s->state == SERVICE_START_PRE)
1723 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1724 else if (s->state == SERVICE_STOP)
1725 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1726 else if (s->state == SERVICE_STOP_POST)
1727 service_enter_dead(s, false, true);
1729 service_enter_stop(s, false);
1732 static int service_start(Unit *u) {
1733 Service *s = SERVICE(u);
1737 /* We cannot fulfill this request right now, try again later
1739 if (s->state == SERVICE_STOP ||
1740 s->state == SERVICE_STOP_SIGTERM ||
1741 s->state == SERVICE_STOP_SIGKILL ||
1742 s->state == SERVICE_STOP_POST ||
1743 s->state == SERVICE_FINAL_SIGTERM ||
1744 s->state == SERVICE_FINAL_SIGKILL)
1747 /* Already on it! */
1748 if (s->state == SERVICE_START_PRE ||
1749 s->state == SERVICE_START ||
1750 s->state == SERVICE_START_POST)
1753 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
1755 /* Make sure we don't enter a busy loop of some kind. */
1756 if (!ratelimit_test(&s->ratelimit)) {
1757 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
1762 s->main_pid_known = false;
1763 s->allow_restart = true;
1765 service_enter_start_pre(s);
1769 static int service_stop(Unit *u) {
1770 Service *s = SERVICE(u);
1774 /* Cannot do this now */
1775 if (s->state == SERVICE_START_PRE ||
1776 s->state == SERVICE_START ||
1777 s->state == SERVICE_START_POST ||
1778 s->state == SERVICE_RELOAD)
1782 if (s->state == SERVICE_STOP ||
1783 s->state == SERVICE_STOP_SIGTERM ||
1784 s->state == SERVICE_STOP_SIGKILL ||
1785 s->state == SERVICE_STOP_POST ||
1786 s->state == SERVICE_FINAL_SIGTERM ||
1787 s->state == SERVICE_FINAL_SIGKILL)
1790 if (s->state == SERVICE_AUTO_RESTART) {
1791 service_set_state(s, SERVICE_DEAD);
1795 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1797 /* This is a user request, so don't do restarts on this
1799 s->allow_restart = false;
1801 service_enter_stop(s, true);
1805 static int service_reload(Unit *u) {
1806 Service *s = SERVICE(u);
1810 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1812 service_enter_reload(s);
1816 static bool service_can_reload(Unit *u) {
1817 Service *s = SERVICE(u);
1821 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1824 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1825 Service *s = SERVICE(u);
1831 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
1832 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1834 if (s->control_pid > 0)
1835 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
1837 if (s->main_pid_known && s->main_pid > 0)
1838 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
1840 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
1842 /* There's a minor uncleanliness here: if there are multiple
1843 * commands attached here, we will start from the first one
1845 if (s->control_command_id >= 0)
1846 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
1848 if (s->socket_fd >= 0) {
1851 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
1854 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
1860 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
1861 Service *s = SERVICE(u);
1869 if (streq(key, "state")) {
1872 if ((state = service_state_from_string(value)) < 0)
1873 log_debug("Failed to parse state value %s", value);
1875 s->deserialized_state = state;
1876 } else if (streq(key, "failure")) {
1879 if ((b = parse_boolean(value)) < 0)
1880 log_debug("Failed to parse failure value %s", value);
1882 s->failure = b || s->failure;
1883 } else if (streq(key, "control-pid")) {
1886 if ((r = parse_pid(value, &pid)) < 0)
1887 log_debug("Failed to parse control-pid value %s", value);
1889 s->control_pid = pid;
1890 } else if (streq(key, "main-pid")) {
1893 if ((r = parse_pid(value, &pid)) < 0)
1894 log_debug("Failed to parse main-pid value %s", value);
1896 service_set_main_pid(s, (pid_t) pid);
1897 } else if (streq(key, "main-pid-known")) {
1900 if ((b = parse_boolean(value)) < 0)
1901 log_debug("Failed to parse main-pid-known value %s", value);
1903 s->main_pid_known = b;
1904 } else if (streq(key, "control-command")) {
1905 ServiceExecCommand id;
1907 if ((id = service_exec_command_from_string(value)) < 0)
1908 log_debug("Failed to parse exec-command value %s", value);
1910 s->control_command_id = id;
1911 s->control_command = s->exec_command[id];
1913 } else if (streq(key, "socket-fd")) {
1916 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
1917 log_debug("Failed to parse socket-fd value %s", value);
1920 if (s->socket_fd >= 0)
1921 close_nointr_nofail(s->socket_fd);
1922 s->socket_fd = fdset_remove(fds, fd);
1925 log_debug("Unknown serialization key '%s'", key);
1930 static UnitActiveState service_active_state(Unit *u) {
1933 return state_translation_table[SERVICE(u)->state];
1936 static const char *service_sub_state_to_string(Unit *u) {
1939 return service_state_to_string(SERVICE(u)->state);
1942 static bool service_check_gc(Unit *u) {
1943 Service *s = SERVICE(u);
1947 return !!s->sysv_path;
1950 static bool service_check_snapshot(Unit *u) {
1951 Service *s = SERVICE(u);
1955 return !s->got_socket_fd;
1958 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
1959 Service *s = SERVICE(u);
1965 success = is_clean_exit(code, status);
1966 s->failure = s->failure || !success;
1968 if (s->main_pid == pid) {
1970 exec_status_fill(&s->main_exec_status, pid, code, status);
1973 if (s->type != SERVICE_FORKING) {
1974 assert(s->exec_command[SERVICE_EXEC_START]);
1975 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
1978 log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
1980 /* The service exited, so the service is officially
1985 case SERVICE_START_POST:
1986 case SERVICE_RELOAD:
1988 /* Need to wait until the operation is
1993 if (s->type == SERVICE_FINISH) {
1994 /* This was our main goal, so let's go on */
1996 service_enter_start_post(s);
1998 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2001 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2006 case SERVICE_RUNNING:
2007 service_enter_running(s, success);
2010 case SERVICE_STOP_SIGTERM:
2011 case SERVICE_STOP_SIGKILL:
2013 if (!control_pid_good(s))
2014 service_enter_stop_post(s, success);
2016 /* If there is still a control process, wait for that first */
2020 assert_not_reached("Uh, main process died at wrong time.");
2023 } else if (s->control_pid == pid) {
2025 if (s->control_command)
2026 exec_status_fill(&s->control_command->exec_status, pid, code, status);
2030 log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2032 /* If we are shutting things down anyway we
2033 * don't care about failing commands. */
2035 if (s->control_command && s->control_command->command_next && success) {
2037 /* There is another command to *
2038 * execute, so let's do that. */
2040 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
2041 service_run_next(s, success);
2044 /* No further commands for this step, so let's
2045 * figure out what to do next */
2047 s->control_command = NULL;
2048 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2050 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2054 case SERVICE_START_PRE:
2056 service_enter_start(s);
2058 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2062 assert(s->type == SERVICE_FORKING);
2064 /* Let's try to load the pid
2065 * file here if we can. We
2066 * ignore the return value,
2067 * since the PID file might
2068 * actually be created by a
2069 * START_POST script */
2073 service_load_pid_file(s);
2075 service_enter_start_post(s);
2077 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2081 case SERVICE_START_POST:
2082 if (success && s->pid_file && !s->main_pid_known) {
2085 /* Hmm, let's see if we can
2086 * load the pid now after the
2087 * start-post scripts got
2090 if ((r = service_load_pid_file(s)) < 0)
2091 log_warning("%s: failed to load PID file %s: %s", UNIT(s)->meta.id, s->pid_file, strerror(-r));
2096 case SERVICE_RELOAD:
2098 service_enter_running(s, true);
2100 service_enter_stop(s, false);
2105 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2108 case SERVICE_STOP_SIGTERM:
2109 case SERVICE_STOP_SIGKILL:
2110 if (main_pid_good(s) <= 0)
2111 service_enter_stop_post(s, success);
2113 /* If there is still a service
2114 * process around, wait until
2115 * that one quit, too */
2118 case SERVICE_STOP_POST:
2119 case SERVICE_FINAL_SIGTERM:
2120 case SERVICE_FINAL_SIGKILL:
2121 service_enter_dead(s, success, true);
2125 assert_not_reached("Uh, control process died at wrong time.");
2131 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2132 Service *s = SERVICE(u);
2135 assert(elapsed == 1);
2137 assert(w == &s->timer_watch);
2141 case SERVICE_START_PRE:
2143 log_warning("%s operation timed out. Terminating.", u->meta.id);
2144 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2147 case SERVICE_START_POST:
2148 case SERVICE_RELOAD:
2149 log_warning("%s operation timed out. Stopping.", u->meta.id);
2150 service_enter_stop(s, false);
2154 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2155 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2158 case SERVICE_STOP_SIGTERM:
2159 log_warning("%s stopping timed out. Killing.", u->meta.id);
2160 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2163 case SERVICE_STOP_SIGKILL:
2164 /* Uh, wie sent a SIGKILL and it is still not gone?
2165 * Must be something we cannot kill, so let's just be
2166 * weirded out and continue */
2168 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2169 service_enter_stop_post(s, false);
2172 case SERVICE_STOP_POST:
2173 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2174 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2177 case SERVICE_FINAL_SIGTERM:
2178 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2179 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2182 case SERVICE_FINAL_SIGKILL:
2183 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
2184 service_enter_dead(s, false, true);
2187 case SERVICE_AUTO_RESTART:
2188 log_debug("%s holdoff time over, scheduling restart.", u->meta.id);
2189 service_enter_restart(s);
2193 assert_not_reached("Timeout at wrong time.");
2197 static void service_cgroup_notify_event(Unit *u) {
2198 Service *s = SERVICE(u);
2202 log_debug("%s: cgroup is empty", u->meta.id);
2206 /* Waiting for SIGCHLD is usually more interesting,
2207 * because it includes return codes/signals. Which is
2208 * why we ignore the cgroup events for most cases,
2209 * except when we don't know pid which to expect the
2212 case SERVICE_RUNNING:
2213 service_enter_running(s, true);
2221 static void service_notify_message(Unit *u, char **tags) {
2222 Service *s = SERVICE(u);
2227 log_debug("%s: Got message", u->meta.id);
2229 /* Interpret MAINPID= */
2230 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2231 (s->state == SERVICE_START ||
2232 s->state == SERVICE_START_POST ||
2233 s->state == SERVICE_RUNNING ||
2234 s->state == SERVICE_RELOAD)) {
2237 if (parse_pid(e + 8, &pid) < 0)
2238 log_warning("Failed to parse %s", e);
2240 log_debug("%s: got %s", u->meta.id, e);
2241 service_set_main_pid(s, pid);
2245 /* Interpret READY= */
2246 if (s->type == SERVICE_NOTIFY &&
2247 s->state == SERVICE_START &&
2248 strv_find(tags, "READY=1")) {
2249 log_debug("%s: got READY=1", u->meta.id);
2251 service_enter_start_post(s);
2254 /* Interpret STATUS= */
2255 if ((e = strv_find_prefix(tags, "STATUS="))) {
2258 if (!(t = strdup(e+7))) {
2259 log_error("Failed to allocate string.");
2263 log_debug("%s: got %s", u->meta.id, e);
2265 free(s->status_text);
2270 static int service_enumerate(Manager *m) {
2274 char *path = NULL, *fpath = NULL, *name = NULL;
2279 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
2280 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2285 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2293 if (!(d = opendir(path))) {
2294 if (errno != ENOENT)
2295 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2300 while ((de = readdir(d))) {
2304 if (ignore_file(de->d_name))
2307 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2310 if (strlen(de->d_name) < 4)
2313 a = undecchar(de->d_name[1]);
2314 b = undecchar(de->d_name[2]);
2321 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2326 if (access(fpath, X_OK) < 0) {
2328 if (errno != ENOENT)
2329 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2335 if (!(name = sysv_translate_name(de->d_name + 3))) {
2340 if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) {
2341 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2345 if (de->d_name[0] == 'S' &&
2346 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
2347 SERVICE(service)->sysv_start_priority =
2348 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
2350 manager_dispatch_load_queue(m);
2351 service = unit_follow_merge(service);
2353 if (de->d_name[0] == 'S') {
2354 Unit *runlevel_target;
2356 if ((r = manager_load_unit(m, rcnd_table[i].target, NULL, &runlevel_target)) < 0)
2359 if ((r = unit_add_dependency(runlevel_target, UNIT_WANTS, service, true)) < 0)
2362 if ((r = unit_add_dependency(service, UNIT_BEFORE, runlevel_target, true)) < 0)
2365 } else if (de->d_name[0] == 'K' &&
2366 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2367 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
2368 Unit *shutdown_target;
2370 /* We honour K links only for
2371 * halt/reboot. For the normal
2372 * runlevels we assume the
2374 * implicitly added by the
2375 * core logic. Also, we don't
2376 * really distuingish here
2377 * between the runlevels 0 and
2378 * 6 and just add them to the
2379 * special shutdown target. On
2380 * SUSE the boot.d/ runlevel
2381 * is also used for shutdown,
2382 * so we add links for that
2383 * too to the shutdown
2386 if ((r = manager_load_unit(m, SPECIAL_SHUTDOWN_TARGET, NULL, &shutdown_target)) < 0)
2389 if ((r = unit_add_dependency(service, UNIT_CONFLICTS, shutdown_target, true)) < 0)
2392 if ((r = unit_add_dependency(service, UNIT_BEFORE, shutdown_target, true)) < 0)
2411 static void service_bus_name_owner_change(
2414 const char *old_owner,
2415 const char *new_owner) {
2417 Service *s = SERVICE(u);
2422 assert(streq(s->bus_name, name));
2423 assert(old_owner || new_owner);
2425 if (old_owner && new_owner)
2426 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2428 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2430 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2432 s->bus_name_good = !!new_owner;
2434 if (s->type == SERVICE_DBUS) {
2436 /* service_enter_running() will figure out what to
2438 if (s->state == SERVICE_RUNNING)
2439 service_enter_running(s, true);
2440 else if (s->state == SERVICE_START && new_owner)
2441 service_enter_start_post(s);
2443 } else if (new_owner &&
2445 (s->state == SERVICE_START ||
2446 s->state == SERVICE_START_POST ||
2447 s->state == SERVICE_RUNNING ||
2448 s->state == SERVICE_RELOAD)) {
2450 /* Try to acquire PID from bus service */
2451 log_debug("Trying to acquire PID from D-Bus name...");
2453 bus_query_pid(u->meta.manager, name);
2457 static void service_bus_query_pid_done(
2462 Service *s = SERVICE(u);
2467 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2469 if (s->main_pid <= 0 &&
2470 (s->state == SERVICE_START ||
2471 s->state == SERVICE_START_POST ||
2472 s->state == SERVICE_RUNNING ||
2473 s->state == SERVICE_RELOAD))
2474 service_set_main_pid(s, pid);
2477 int service_set_socket_fd(Service *s, int fd) {
2481 /* This is called by the socket code when instantiating a new
2482 * service for a stream socket and the socket needs to be
2485 if (UNIT(s)->meta.load_state != UNIT_LOADED)
2488 if (s->socket_fd >= 0)
2491 if (s->state != SERVICE_DEAD)
2495 s->got_socket_fd = true;
2499 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2500 [SERVICE_DEAD] = "dead",
2501 [SERVICE_START_PRE] = "start-pre",
2502 [SERVICE_START] = "start",
2503 [SERVICE_START_POST] = "start-post",
2504 [SERVICE_RUNNING] = "running",
2505 [SERVICE_EXITED] = "exited",
2506 [SERVICE_RELOAD] = "reload",
2507 [SERVICE_STOP] = "stop",
2508 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2509 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2510 [SERVICE_STOP_POST] = "stop-post",
2511 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2512 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
2513 [SERVICE_MAINTENANCE] = "maintenance",
2514 [SERVICE_AUTO_RESTART] = "auto-restart",
2517 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2519 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2520 [SERVICE_ONCE] = "once",
2521 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
2522 [SERVICE_RESTART_ALWAYS] = "restart-always",
2525 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2527 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
2528 [SERVICE_FORKING] = "forking",
2529 [SERVICE_SIMPLE] = "simple",
2530 [SERVICE_FINISH] = "finish",
2531 [SERVICE_DBUS] = "dbus",
2532 [SERVICE_NOTIFY] = "notify"
2535 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2537 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
2538 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2539 [SERVICE_EXEC_START] = "ExecStart",
2540 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2541 [SERVICE_EXEC_RELOAD] = "ExecReload",
2542 [SERVICE_EXEC_STOP] = "ExecStop",
2543 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2546 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2548 const UnitVTable service_vtable = {
2549 .suffix = ".service",
2551 .init = service_init,
2552 .done = service_done,
2553 .load = service_load,
2555 .coldplug = service_coldplug,
2557 .dump = service_dump,
2559 .start = service_start,
2560 .stop = service_stop,
2561 .reload = service_reload,
2563 .can_reload = service_can_reload,
2565 .serialize = service_serialize,
2566 .deserialize_item = service_deserialize_item,
2568 .active_state = service_active_state,
2569 .sub_state_to_string = service_sub_state_to_string,
2571 .check_gc = service_check_gc,
2572 .check_snapshot = service_check_snapshot,
2574 .sigchld_event = service_sigchld_event,
2575 .timer_event = service_timer_event,
2577 .cgroup_notify_empty = service_cgroup_notify_event,
2578 .notify_message = service_notify_message,
2580 .bus_name_owner_change = service_bus_name_owner_change,
2581 .bus_query_pid_done = service_bus_query_pid_done,
2583 .bus_message_handler = bus_service_message_handler,
2585 .enumerate = service_enumerate