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_connection_unref(Service *s) {
166 socket_connection_unref(s->socket);
170 static void service_done(Unit *u) {
171 Service *s = SERVICE(u);
181 free(s->sysv_runlevels);
182 s->sysv_runlevels = NULL;
184 free(s->status_text);
185 s->status_text = NULL;
187 exec_context_done(&s->exec_context);
188 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
189 s->control_command = NULL;
191 /* This will leak a process, but at least no memory or any of
193 service_unwatch_main_pid(s);
194 service_unwatch_control_pid(s);
197 unit_unwatch_bus_name(UNIT(u), s->bus_name);
202 service_close_socket_fd(s);
203 service_connection_unref(s);
205 unit_unwatch_timer(u, &s->timer_watch);
208 static char *sysv_translate_name(const char *name) {
211 if (!(r = new(char, strlen(name) + sizeof(".service"))))
214 if (startswith(name, "boot."))
215 /* Drop SuSE-style boot. prefix */
216 strcpy(stpcpy(r, name + 5), ".service");
217 else if (endswith(name, ".sh"))
218 /* Drop Debian-style .sh suffix */
219 strcpy(stpcpy(r, name) - 3, ".service");
221 /* Normal init scripts */
222 strcpy(stpcpy(r, name), ".service");
227 static int sysv_translate_facility(const char *name, char **_r) {
229 static const char * const table[] = {
230 /* LSB defined facilities */
231 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
232 "$network", SPECIAL_NETWORK_TARGET,
233 "$named", SPECIAL_NSS_LOOKUP_TARGET,
234 "$portmap", SPECIAL_RPCBIND_TARGET,
235 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
236 "$syslog", SPECIAL_SYSLOG_TARGET,
237 "$time", SPECIAL_RTC_SET_TARGET,
239 /* Debian extensions */
240 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
241 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
242 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
248 for (i = 0; i < ELEMENTSOF(table); i += 2)
249 if (streq(table[i], name)) {
250 if (!(r = strdup(table[i+1])))
259 if (!(r = sysv_translate_name(name)))
270 static int sysv_fix_order(Service *s) {
276 if (s->sysv_start_priority < 0)
279 /* For each pair of services where at least one lacks a LSB
280 * header, we use the start priority value to order things. */
282 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
286 t = (Service*) other;
291 if (t->sysv_start_priority < 0)
294 /* If both units have modern headers we don't care
295 * about the priorities */
296 if ((!s->sysv_path || s->sysv_has_lsb) &&
297 (!t->sysv_path || t->sysv_has_lsb))
300 if (t->sysv_start_priority < s->sysv_start_priority)
302 else if (t->sysv_start_priority > s->sysv_start_priority)
307 /* FIXME: Maybe we should compare the name here lexicographically? */
309 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
316 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
319 if (!(c = new0(ExecCommand, 1)))
322 if (!(c->path = strdup(path))) {
327 if (!(c->argv = strv_new(path, arg1, NULL))) {
336 static int sysv_exec_commands(Service *s) {
340 assert(s->sysv_path);
342 if (!(c = exec_command_new(s->sysv_path, "start")))
344 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
346 if (!(c = exec_command_new(s->sysv_path, "stop")))
348 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
350 if (!(c = exec_command_new(s->sysv_path, "reload")))
352 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
357 static int service_load_sysv_path(Service *s, const char *path) {
374 if (!(f = fopen(path, "re"))) {
375 r = errno == ENOENT ? 0 : -errno;
380 if (!(s->sysv_path = strdup(path))) {
386 char l[LINE_MAX], *t;
388 if (!fgets(l, sizeof(l), f)) {
393 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
403 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
405 s->sysv_has_lsb = true;
409 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
415 t += strspn(t, WHITESPACE);
417 if (state == NORMAL) {
419 /* Try to parse Red Hat style chkconfig headers */
421 if (startswith_no_case(t, "chkconfig:")) {
423 char runlevels[16], *k;
427 if (sscanf(t+10, "%15s %i %*i",
429 &start_priority) != 2) {
431 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
435 /* A start priority gathered from the
436 * symlink farms is preferred over the
437 * data from the LSB header. */
438 if (start_priority < 0 || start_priority > 99)
439 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
440 else if (s->sysv_start_priority < 0)
441 s->sysv_start_priority = start_priority;
443 char_array_0(runlevels);
444 k = delete_chars(runlevels, WHITESPACE "-");
449 if (!(d = strdup(k))) {
454 free(s->sysv_runlevels);
455 s->sysv_runlevels = d;
458 } else if (startswith_no_case(t, "description:")) {
460 size_t k = strlen(t);
463 if (t[k-1] == '\\') {
468 if (!(d = strdup(strstrip(t+12)))) {
473 free(u->meta.description);
474 u->meta.description = d;
476 } else if (startswith_no_case(t, "pidfile:")) {
483 if (!path_is_absolute(fn)) {
484 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
488 if (!(fn = strdup(fn))) {
497 } else if (state == DESCRIPTION) {
499 /* Try to parse Red Hat style description
502 size_t k = strlen(t);
510 assert(u->meta.description);
511 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
516 free(u->meta.description);
517 u->meta.description = d;
519 } else if (state == LSB || state == LSB_DESCRIPTION) {
521 if (startswith_no_case(t, "Provides:")) {
527 FOREACH_WORD(w, z, t+9, i) {
530 if (!(n = strndup(w, z))) {
535 r = sysv_translate_facility(n, &m);
544 if (unit_name_to_type(m) == UNIT_SERVICE)
545 r = unit_add_name(u, m);
547 if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL, true)) >= 0)
548 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
557 } else if (startswith_no_case(t, "Required-Start:") ||
558 startswith_no_case(t, "Should-Start:") ||
559 startswith_no_case(t, "X-Start-Before:") ||
560 startswith_no_case(t, "X-Start-After:")) {
566 FOREACH_WORD(w, z, strchr(t, ':')+1, i) {
569 if (!(n = strndup(w, z))) {
574 r = sysv_translate_facility(n, &m);
583 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
589 } else if (startswith_no_case(t, "Default-Start:")) {
594 k = delete_chars(t+14, WHITESPACE "-");
597 if (!(d = strdup(k))) {
602 free(s->sysv_runlevels);
603 s->sysv_runlevels = d;
606 } else if (startswith_no_case(t, "Description:")) {
609 state = LSB_DESCRIPTION;
611 if (!(d = strdup(strstrip(t+12)))) {
616 free(u->meta.description);
617 u->meta.description = d;
619 } else if (startswith_no_case(t, "Short-Description:") &&
620 !u->meta.description) {
623 /* We use the short description only
624 * if no long description is set. */
628 if (!(d = strdup(strstrip(t+18)))) {
633 u->meta.description = d;
635 } else if (startswith_no_case(t, "X-Interactive:")) {
638 if ((b = parse_boolean(strstrip(t+14))) < 0) {
639 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
644 s->exec_context.std_input = EXEC_INPUT_TTY;
646 s->exec_context.std_input = EXEC_INPUT_NULL;
648 } else if (state == LSB_DESCRIPTION) {
650 if (startswith(l, "#\t") || startswith(l, "# ")) {
653 assert(u->meta.description);
654 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
659 free(u->meta.description);
660 u->meta.description = d;
667 if ((r = sysv_exec_commands(s)) < 0)
670 if (!s->sysv_runlevels || chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
671 /* If there a runlevels configured for this service
672 * but none of the standard ones, then we assume this
673 * is some special kind of service (which might be
674 * needed for early boot) and don't create any links
677 if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 ||
678 (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
682 /* Don't timeout special services during boot (like fsck) */
685 /* Special setting for all SysV services */
686 s->type = SERVICE_FORKING;
687 s->valid_no_process = true;
688 s->kill_mode = KILL_PROCESS_GROUP;
689 s->restart = SERVICE_ONCE;
691 u->meta.load_state = UNIT_LOADED;
702 static int service_load_sysv_name(Service *s, const char *name) {
708 /* For SysV services we strip the boot. or .sh
709 * prefixes/suffixes. */
710 if (startswith(name, "boot.") ||
711 endswith(name, ".sh.service"))
714 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
718 if (asprintf(&path, "%s/%s", *p, name) < 0)
721 assert(endswith(path, ".service"));
722 path[strlen(path)-8] = 0;
724 r = service_load_sysv_path(s, path);
726 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
727 /* Try Debian style xxx.sh source'able init scripts */
729 r = service_load_sysv_path(s, path);
734 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
735 /* Try SUSE style boot.xxx init scripts */
737 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
740 path[strlen(path)-8] = 0;
741 r = service_load_sysv_path(s, path);
748 if ((s->meta.load_state != UNIT_STUB))
755 static int service_load_sysv(Service *s) {
762 /* Load service data from SysV init scripts, preferably with
765 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
768 if ((t = s->meta.id))
769 if ((r = service_load_sysv_name(s, t)) < 0)
772 if (s->meta.load_state == UNIT_STUB)
773 SET_FOREACH(t, s->meta.names, i) {
777 if ((r == service_load_sysv_name(s, t)) < 0)
780 if (s->meta.load_state != UNIT_STUB)
787 static int service_add_bus_name(Service *s) {
794 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
797 r = unit_merge_by_name(UNIT(s), n);
803 static int service_verify(Service *s) {
806 if (s->meta.load_state != UNIT_LOADED)
809 if (!s->exec_command[SERVICE_EXEC_START]) {
810 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
814 if (s->exec_command[SERVICE_EXEC_START]->command_next) {
815 log_error("%s has more than one ExecStart setting. Refusing.", s->meta.id);
819 if (s->type == SERVICE_DBUS && !s->bus_name) {
820 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
824 if (s->exec_context.pam_name && s->kill_mode != KILL_CONTROL_GROUP) {
825 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
832 static int service_load(Unit *u) {
834 Service *s = SERVICE(u);
838 /* Load a .service file */
839 if ((r = unit_load_fragment(u)) < 0)
842 /* Load a classic init script as a fallback, if we couldn't find anything */
843 if (u->meta.load_state == UNIT_STUB)
844 if ((r = service_load_sysv(s)) < 0)
847 /* Still nothing found? Then let's give up */
848 if (u->meta.load_state == UNIT_STUB)
851 /* We were able to load something, then let's add in the
852 * dropin directories. */
853 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
856 /* This is a new unit? Then let's add in some extras */
857 if (u->meta.load_state == UNIT_LOADED) {
858 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
861 if ((r = unit_add_default_cgroup(u)) < 0)
864 if ((r = sysv_fix_order(s)) < 0)
868 if ((r = service_add_bus_name(s)) < 0)
871 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
875 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
876 s->notify_access = NOTIFY_MAIN;
879 return service_verify(s);
882 static void service_dump(Unit *u, FILE *f, const char *prefix) {
884 ServiceExecCommand c;
885 Service *s = SERVICE(u);
891 p2 = strappend(prefix, "\t");
892 prefix2 = p2 ? p2 : prefix;
895 "%sService State: %s\n"
896 "%sPermissionsStartOnly: %s\n"
897 "%sRootDirectoryStartOnly: %s\n"
898 "%sValidNoProcess: %s\n"
901 "%sNotifyAccess: %s\n",
902 prefix, service_state_to_string(s->state),
903 prefix, yes_no(s->permissions_start_only),
904 prefix, yes_no(s->root_directory_start_only),
905 prefix, yes_no(s->valid_no_process),
906 prefix, kill_mode_to_string(s->kill_mode),
907 prefix, service_type_to_string(s->type),
908 prefix, notify_access_to_string(s->notify_access));
910 if (s->control_pid > 0)
912 "%sControl PID: %lu\n",
913 prefix, (unsigned long) s->control_pid);
918 prefix, (unsigned long) s->main_pid);
923 prefix, s->pid_file);
928 "%sBus Name Good: %s\n",
930 prefix, yes_no(s->bus_name_good));
932 exec_context_dump(&s->exec_context, f, prefix);
934 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
936 if (!s->exec_command[c])
939 fprintf(f, "%s-> %s:\n",
940 prefix, service_exec_command_to_string(c));
942 exec_command_dump_list(s->exec_command[c], f, prefix2);
947 "%sSysV Init Script Path: %s\n"
948 "%sSysV Init Script has LSB Header: %s\n",
949 prefix, s->sysv_path,
950 prefix, yes_no(s->sysv_has_lsb));
952 if (s->sysv_start_priority >= 0)
954 "%sSysVStartPriority: %i\n",
955 prefix, s->sysv_start_priority);
957 if (s->sysv_runlevels)
958 fprintf(f, "%sSysVRunLevels: %s\n",
959 prefix, s->sysv_runlevels);
962 fprintf(f, "%sStatus Text: %s\n",
963 prefix, s->status_text);
968 static int service_load_pid_file(Service *s) {
975 if (s->main_pid_known)
978 assert(s->main_pid <= 0);
983 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
986 r = parse_pid(k, &pid);
992 if (kill(pid, 0) < 0 && errno != EPERM) {
993 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
994 (unsigned long) pid, s->pid_file);
998 if ((r = service_set_main_pid(s, pid)) < 0)
1001 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1002 /* FIXME: we need to do something here */
1008 static int service_get_sockets(Service *s, Set **_set) {
1017 if (s->socket_fd >= 0)
1020 /* Collects all Socket objects that belong to this
1021 * service. Note that a service might have multiple sockets
1022 * via multiple names. */
1024 if (!(set = set_new(NULL, NULL)))
1027 SET_FOREACH(t, s->meta.names, i) {
1031 /* Look for all socket objects that go by any of our
1032 * units and collect their fds */
1034 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1039 p = manager_get_unit(s->meta.manager, k);
1045 if ((r = set_put(set, p)) < 0)
1057 static int service_notify_sockets_dead(Service *s) {
1065 if (s->socket_fd >= 0)
1068 /* Notifies all our sockets when we die */
1069 if ((r = service_get_sockets(s, &set)) < 0)
1072 SET_FOREACH(sock, set, i)
1073 socket_notify_service_dead(sock);
1080 static void service_set_state(Service *s, ServiceState state) {
1081 ServiceState old_state;
1084 old_state = s->state;
1087 if (state != SERVICE_START_PRE &&
1088 state != SERVICE_START &&
1089 state != SERVICE_START_POST &&
1090 state != SERVICE_RELOAD &&
1091 state != SERVICE_STOP &&
1092 state != SERVICE_STOP_SIGTERM &&
1093 state != SERVICE_STOP_SIGKILL &&
1094 state != SERVICE_STOP_POST &&
1095 state != SERVICE_FINAL_SIGTERM &&
1096 state != SERVICE_FINAL_SIGKILL &&
1097 state != SERVICE_AUTO_RESTART)
1098 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1100 if (state != SERVICE_START &&
1101 state != SERVICE_START_POST &&
1102 state != SERVICE_RUNNING &&
1103 state != SERVICE_RELOAD &&
1104 state != SERVICE_STOP &&
1105 state != SERVICE_STOP_SIGTERM &&
1106 state != SERVICE_STOP_SIGKILL)
1107 service_unwatch_main_pid(s);
1109 if (state != SERVICE_START_PRE &&
1110 state != SERVICE_START &&
1111 state != SERVICE_START_POST &&
1112 state != SERVICE_RELOAD &&
1113 state != SERVICE_STOP &&
1114 state != SERVICE_STOP_SIGTERM &&
1115 state != SERVICE_STOP_SIGKILL &&
1116 state != SERVICE_STOP_POST &&
1117 state != SERVICE_FINAL_SIGTERM &&
1118 state != SERVICE_FINAL_SIGKILL) {
1119 service_unwatch_control_pid(s);
1120 s->control_command = NULL;
1121 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1124 if (state == SERVICE_DEAD ||
1125 state == SERVICE_STOP ||
1126 state == SERVICE_STOP_SIGTERM ||
1127 state == SERVICE_STOP_SIGKILL ||
1128 state == SERVICE_STOP_POST ||
1129 state == SERVICE_FINAL_SIGTERM ||
1130 state == SERVICE_FINAL_SIGKILL ||
1131 state == SERVICE_MAINTENANCE ||
1132 state == SERVICE_AUTO_RESTART)
1133 service_notify_sockets_dead(s);
1135 if (state != SERVICE_START_PRE &&
1136 state != SERVICE_START &&
1137 state != SERVICE_START_POST &&
1138 state != SERVICE_RUNNING &&
1139 state != SERVICE_RELOAD &&
1140 state != SERVICE_STOP &&
1141 state != SERVICE_STOP_SIGTERM &&
1142 state != SERVICE_STOP_SIGKILL &&
1143 state != SERVICE_STOP_POST &&
1144 state != SERVICE_FINAL_SIGTERM &&
1145 state != SERVICE_FINAL_SIGKILL &&
1146 !(state == SERVICE_DEAD && s->meta.job)) {
1147 service_close_socket_fd(s);
1148 service_connection_unref(s);
1151 if (old_state != state)
1152 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
1154 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
1157 static int service_coldplug(Unit *u) {
1158 Service *s = SERVICE(u);
1162 assert(s->state == SERVICE_DEAD);
1164 if (s->deserialized_state != s->state) {
1166 if (s->deserialized_state == SERVICE_START_PRE ||
1167 s->deserialized_state == SERVICE_START ||
1168 s->deserialized_state == SERVICE_START_POST ||
1169 s->deserialized_state == SERVICE_RELOAD ||
1170 s->deserialized_state == SERVICE_STOP ||
1171 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1172 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1173 s->deserialized_state == SERVICE_STOP_POST ||
1174 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1175 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1176 s->deserialized_state == SERVICE_AUTO_RESTART) {
1178 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1181 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1183 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1188 if ((s->deserialized_state == SERVICE_START &&
1189 (s->type == SERVICE_FORKING ||
1190 s->type == SERVICE_DBUS ||
1191 s->type == SERVICE_FINISH ||
1192 s->type == SERVICE_NOTIFY)) ||
1193 s->deserialized_state == SERVICE_START_POST ||
1194 s->deserialized_state == SERVICE_RUNNING ||
1195 s->deserialized_state == SERVICE_RELOAD ||
1196 s->deserialized_state == SERVICE_STOP ||
1197 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1198 s->deserialized_state == SERVICE_STOP_SIGKILL)
1199 if (s->main_pid > 0)
1200 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1203 if (s->deserialized_state == SERVICE_START_PRE ||
1204 s->deserialized_state == SERVICE_START ||
1205 s->deserialized_state == SERVICE_START_POST ||
1206 s->deserialized_state == SERVICE_RELOAD ||
1207 s->deserialized_state == SERVICE_STOP ||
1208 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1209 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1210 s->deserialized_state == SERVICE_STOP_POST ||
1211 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1212 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1213 if (s->control_pid > 0)
1214 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1217 service_set_state(s, s->deserialized_state);
1223 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1227 unsigned rn_fds = 0;
1235 if (s->socket_fd >= 0)
1238 if ((r = service_get_sockets(s, &set)) < 0)
1241 SET_FOREACH(sock, set, i) {
1245 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1257 if (!(t = new(int, rn_fds+cn_fds))) {
1263 memcpy(t, rfds, rn_fds);
1264 memcpy(t+rn_fds, cfds, cn_fds);
1269 rn_fds = rn_fds+cn_fds;
1287 static int service_spawn(
1292 bool apply_permissions,
1294 bool set_notify_socket,
1299 int *fds = NULL, *fdsbuf = NULL;
1301 char **argv = NULL, **env = NULL;
1308 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1309 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1310 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1312 if (s->socket_fd >= 0) {
1313 fds = &s->socket_fd;
1316 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1323 if (timeout && s->timeout_usec) {
1324 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1327 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1329 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1334 if (set_notify_socket) {
1337 if (asprintf(&t, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
1342 env = strv_env_set(s->meta.manager->environment, t);
1350 env = s->meta.manager->environment;
1359 s->meta.manager->confirm_spawn,
1360 s->meta.cgroup_bondings,
1366 if (set_notify_socket)
1376 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1377 /* FIXME: we need to do something here */
1389 if (set_notify_socket)
1393 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1398 static int main_pid_good(Service *s) {
1401 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1404 /* If we know the pid file, then lets just check if it is
1406 if (s->main_pid_known)
1407 return s->main_pid > 0;
1409 /* We don't know the pid */
1413 static int control_pid_good(Service *s) {
1416 return s->control_pid > 0;
1419 static int cgroup_good(Service *s) {
1424 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
1430 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1437 if (allow_restart &&
1439 (s->restart == SERVICE_RESTART_ALWAYS ||
1440 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1442 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1445 service_set_state(s, SERVICE_AUTO_RESTART);
1447 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
1452 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
1453 service_enter_dead(s, false, false);
1456 static void service_enter_signal(Service *s, ServiceState state, bool success);
1458 static void service_enter_stop_post(Service *s, bool success) {
1465 service_unwatch_control_pid(s);
1467 s->control_command_id = SERVICE_EXEC_STOP_POST;
1468 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1469 if ((r = service_spawn(s,
1473 !s->permissions_start_only,
1474 !s->root_directory_start_only,
1476 &s->control_pid)) < 0)
1480 service_set_state(s, SERVICE_STOP_POST);
1482 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1487 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
1488 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1491 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1500 if (s->kill_mode != KILL_NONE) {
1501 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
1503 if (s->kill_mode == KILL_CONTROL_GROUP) {
1505 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
1506 if (r != -EAGAIN && r != -ESRCH)
1515 if (s->main_pid > 0) {
1516 if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
1522 if (s->control_pid > 0) {
1523 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
1534 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
1535 if (s->timeout_usec > 0)
1536 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1539 service_set_state(s, state);
1540 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1541 service_enter_stop_post(s, true);
1543 service_enter_dead(s, true, true);
1548 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
1550 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1551 service_enter_stop_post(s, false);
1553 service_enter_dead(s, false, true);
1556 static void service_enter_stop(Service *s, bool success) {
1564 service_unwatch_control_pid(s);
1566 s->control_command_id = SERVICE_EXEC_STOP;
1567 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1568 if ((r = service_spawn(s,
1572 !s->permissions_start_only,
1573 !s->root_directory_start_only,
1575 &s->control_pid)) < 0)
1578 service_set_state(s, SERVICE_STOP);
1580 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1585 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
1586 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1589 static void service_enter_running(Service *s, bool success) {
1595 if (main_pid_good(s) != 0 &&
1596 cgroup_good(s) != 0 &&
1597 (s->bus_name_good || s->type != SERVICE_DBUS))
1598 service_set_state(s, SERVICE_RUNNING);
1599 else if (s->valid_no_process)
1600 service_set_state(s, SERVICE_EXITED);
1602 service_enter_stop(s, true);
1605 static void service_enter_start_post(Service *s) {
1609 service_unwatch_control_pid(s);
1611 s->control_command_id = SERVICE_EXEC_START_POST;
1612 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
1613 if ((r = service_spawn(s,
1617 !s->permissions_start_only,
1618 !s->root_directory_start_only,
1620 &s->control_pid)) < 0)
1623 service_set_state(s, SERVICE_START_POST);
1625 service_enter_running(s, true);
1630 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
1631 service_enter_stop(s, false);
1634 static void service_enter_start(Service *s) {
1640 assert(s->exec_command[SERVICE_EXEC_START]);
1641 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1643 if (s->type == SERVICE_FORKING)
1644 service_unwatch_control_pid(s);
1646 service_unwatch_main_pid(s);
1648 if ((r = service_spawn(s,
1649 s->exec_command[SERVICE_EXEC_START],
1650 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
1654 s->notify_access != NOTIFY_NONE,
1658 if (s->type == SERVICE_SIMPLE) {
1659 /* For simple services we immediately start
1660 * the START_POST binaries. */
1662 service_set_main_pid(s, pid);
1663 service_enter_start_post(s);
1665 } else if (s->type == SERVICE_FORKING) {
1667 /* For forking services we wait until the start
1668 * process exited. */
1670 s->control_command_id = SERVICE_EXEC_START;
1671 s->control_command = s->exec_command[SERVICE_EXEC_START];
1673 s->control_pid = pid;
1674 service_set_state(s, SERVICE_START);
1676 } else if (s->type == SERVICE_FINISH ||
1677 s->type == SERVICE_DBUS ||
1678 s->type == SERVICE_NOTIFY) {
1680 /* For finishing services we wait until the start
1681 * process exited, too, but it is our main process. */
1683 /* For D-Bus services we know the main pid right away,
1684 * but wait for the bus name to appear on the
1685 * bus. Notify services are similar. */
1687 service_set_main_pid(s, pid);
1688 service_set_state(s, SERVICE_START);
1690 assert_not_reached("Unknown service type");
1695 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
1696 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1699 static void service_enter_start_pre(Service *s) {
1704 service_unwatch_control_pid(s);
1706 s->control_command_id = SERVICE_EXEC_START_PRE;
1707 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
1708 if ((r = service_spawn(s,
1712 !s->permissions_start_only,
1713 !s->root_directory_start_only,
1715 &s->control_pid)) < 0)
1718 service_set_state(s, SERVICE_START_PRE);
1720 service_enter_start(s);
1725 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
1726 service_enter_dead(s, false, true);
1729 static void service_enter_restart(Service *s) {
1733 service_enter_dead(s, true, false);
1735 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
1738 log_debug("%s scheduled restart job.", s->meta.id);
1743 log_warning("%s failed to schedule restart job: %s", s->meta.id, strerror(-r));
1744 service_enter_dead(s, false, false);
1747 static void service_enter_reload(Service *s) {
1752 service_unwatch_control_pid(s);
1754 s->control_command_id = SERVICE_EXEC_RELOAD;
1755 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
1756 if ((r = service_spawn(s,
1760 !s->permissions_start_only,
1761 !s->root_directory_start_only,
1763 &s->control_pid)) < 0)
1766 service_set_state(s, SERVICE_RELOAD);
1768 service_enter_running(s, true);
1773 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
1774 service_enter_stop(s, false);
1777 static void service_run_next(Service *s, bool success) {
1781 assert(s->control_command);
1782 assert(s->control_command->command_next);
1787 s->control_command = s->control_command->command_next;
1789 service_unwatch_control_pid(s);
1791 if ((r = service_spawn(s,
1795 !s->permissions_start_only,
1796 !s->root_directory_start_only,
1798 &s->control_pid)) < 0)
1804 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
1806 if (s->state == SERVICE_START_PRE)
1807 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1808 else if (s->state == SERVICE_STOP)
1809 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1810 else if (s->state == SERVICE_STOP_POST)
1811 service_enter_dead(s, false, true);
1813 service_enter_stop(s, false);
1816 static int service_start(Unit *u) {
1817 Service *s = SERVICE(u);
1821 /* We cannot fulfill this request right now, try again later
1823 if (s->state == SERVICE_STOP ||
1824 s->state == SERVICE_STOP_SIGTERM ||
1825 s->state == SERVICE_STOP_SIGKILL ||
1826 s->state == SERVICE_STOP_POST ||
1827 s->state == SERVICE_FINAL_SIGTERM ||
1828 s->state == SERVICE_FINAL_SIGKILL)
1831 /* Already on it! */
1832 if (s->state == SERVICE_START_PRE ||
1833 s->state == SERVICE_START ||
1834 s->state == SERVICE_START_POST)
1837 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
1839 /* Make sure we don't enter a busy loop of some kind. */
1840 if (!ratelimit_test(&s->ratelimit)) {
1841 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
1846 s->main_pid_known = false;
1847 s->allow_restart = true;
1849 service_enter_start_pre(s);
1853 static int service_stop(Unit *u) {
1854 Service *s = SERVICE(u);
1858 /* Cannot do this now */
1859 if (s->state == SERVICE_START_PRE ||
1860 s->state == SERVICE_START ||
1861 s->state == SERVICE_START_POST ||
1862 s->state == SERVICE_RELOAD)
1866 if (s->state == SERVICE_STOP ||
1867 s->state == SERVICE_STOP_SIGTERM ||
1868 s->state == SERVICE_STOP_SIGKILL ||
1869 s->state == SERVICE_STOP_POST ||
1870 s->state == SERVICE_FINAL_SIGTERM ||
1871 s->state == SERVICE_FINAL_SIGKILL)
1874 if (s->state == SERVICE_AUTO_RESTART) {
1875 service_set_state(s, SERVICE_DEAD);
1879 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1881 /* This is a user request, so don't do restarts on this
1883 s->allow_restart = false;
1885 service_enter_stop(s, true);
1889 static int service_reload(Unit *u) {
1890 Service *s = SERVICE(u);
1894 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1896 service_enter_reload(s);
1900 static bool service_can_reload(Unit *u) {
1901 Service *s = SERVICE(u);
1905 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1908 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1909 Service *s = SERVICE(u);
1915 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
1916 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1918 if (s->control_pid > 0)
1919 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
1921 if (s->main_pid_known && s->main_pid > 0)
1922 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
1924 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
1926 /* There's a minor uncleanliness here: if there are multiple
1927 * commands attached here, we will start from the first one
1929 if (s->control_command_id >= 0)
1930 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
1932 if (s->socket_fd >= 0) {
1935 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
1938 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
1944 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
1945 Service *s = SERVICE(u);
1953 if (streq(key, "state")) {
1956 if ((state = service_state_from_string(value)) < 0)
1957 log_debug("Failed to parse state value %s", value);
1959 s->deserialized_state = state;
1960 } else if (streq(key, "failure")) {
1963 if ((b = parse_boolean(value)) < 0)
1964 log_debug("Failed to parse failure value %s", value);
1966 s->failure = b || s->failure;
1967 } else if (streq(key, "control-pid")) {
1970 if ((r = parse_pid(value, &pid)) < 0)
1971 log_debug("Failed to parse control-pid value %s", value);
1973 s->control_pid = pid;
1974 } else if (streq(key, "main-pid")) {
1977 if ((r = parse_pid(value, &pid)) < 0)
1978 log_debug("Failed to parse main-pid value %s", value);
1980 service_set_main_pid(s, (pid_t) pid);
1981 } else if (streq(key, "main-pid-known")) {
1984 if ((b = parse_boolean(value)) < 0)
1985 log_debug("Failed to parse main-pid-known value %s", value);
1987 s->main_pid_known = b;
1988 } else if (streq(key, "control-command")) {
1989 ServiceExecCommand id;
1991 if ((id = service_exec_command_from_string(value)) < 0)
1992 log_debug("Failed to parse exec-command value %s", value);
1994 s->control_command_id = id;
1995 s->control_command = s->exec_command[id];
1997 } else if (streq(key, "socket-fd")) {
2000 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2001 log_debug("Failed to parse socket-fd value %s", value);
2004 if (s->socket_fd >= 0)
2005 close_nointr_nofail(s->socket_fd);
2006 s->socket_fd = fdset_remove(fds, fd);
2009 log_debug("Unknown serialization key '%s'", key);
2014 static UnitActiveState service_active_state(Unit *u) {
2017 return state_translation_table[SERVICE(u)->state];
2020 static const char *service_sub_state_to_string(Unit *u) {
2023 return service_state_to_string(SERVICE(u)->state);
2026 static bool service_check_gc(Unit *u) {
2027 Service *s = SERVICE(u);
2031 return !!s->sysv_path;
2034 static bool service_check_snapshot(Unit *u) {
2035 Service *s = SERVICE(u);
2039 return !s->got_socket_fd;
2042 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2043 Service *s = SERVICE(u);
2049 success = is_clean_exit(code, status);
2050 s->failure = s->failure || !success;
2052 if (s->main_pid == pid) {
2054 exec_status_fill(&s->main_exec_status, pid, code, status);
2057 if (s->type != SERVICE_FORKING) {
2058 assert(s->exec_command[SERVICE_EXEC_START]);
2059 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
2062 log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
2064 /* The service exited, so the service is officially
2069 case SERVICE_START_POST:
2070 case SERVICE_RELOAD:
2072 /* Need to wait until the operation is
2077 if (s->type == SERVICE_FINISH) {
2078 /* This was our main goal, so let's go on */
2080 service_enter_start_post(s);
2082 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2085 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2090 case SERVICE_RUNNING:
2091 service_enter_running(s, success);
2094 case SERVICE_STOP_SIGTERM:
2095 case SERVICE_STOP_SIGKILL:
2097 if (!control_pid_good(s))
2098 service_enter_stop_post(s, success);
2100 /* If there is still a control process, wait for that first */
2104 assert_not_reached("Uh, main process died at wrong time.");
2107 } else if (s->control_pid == pid) {
2109 if (s->control_command)
2110 exec_status_fill(&s->control_command->exec_status, pid, code, status);
2114 log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2116 /* If we are shutting things down anyway we
2117 * don't care about failing commands. */
2119 if (s->control_command && s->control_command->command_next && success) {
2121 /* There is another command to *
2122 * execute, so let's do that. */
2124 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
2125 service_run_next(s, success);
2128 /* No further commands for this step, so let's
2129 * figure out what to do next */
2131 s->control_command = NULL;
2132 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2134 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2138 case SERVICE_START_PRE:
2140 service_enter_start(s);
2142 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2146 assert(s->type == SERVICE_FORKING);
2148 /* Let's try to load the pid
2149 * file here if we can. We
2150 * ignore the return value,
2151 * since the PID file might
2152 * actually be created by a
2153 * START_POST script */
2157 service_load_pid_file(s);
2159 service_enter_start_post(s);
2161 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2165 case SERVICE_START_POST:
2166 if (success && s->pid_file && !s->main_pid_known) {
2169 /* Hmm, let's see if we can
2170 * load the pid now after the
2171 * start-post scripts got
2174 if ((r = service_load_pid_file(s)) < 0)
2175 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
2180 case SERVICE_RELOAD:
2182 service_enter_running(s, true);
2184 service_enter_stop(s, false);
2189 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2192 case SERVICE_STOP_SIGTERM:
2193 case SERVICE_STOP_SIGKILL:
2194 if (main_pid_good(s) <= 0)
2195 service_enter_stop_post(s, success);
2197 /* If there is still a service
2198 * process around, wait until
2199 * that one quit, too */
2202 case SERVICE_STOP_POST:
2203 case SERVICE_FINAL_SIGTERM:
2204 case SERVICE_FINAL_SIGKILL:
2205 service_enter_dead(s, success, true);
2209 assert_not_reached("Uh, control process died at wrong time.");
2215 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2216 Service *s = SERVICE(u);
2219 assert(elapsed == 1);
2221 assert(w == &s->timer_watch);
2225 case SERVICE_START_PRE:
2227 log_warning("%s operation timed out. Terminating.", u->meta.id);
2228 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2231 case SERVICE_START_POST:
2232 case SERVICE_RELOAD:
2233 log_warning("%s operation timed out. Stopping.", u->meta.id);
2234 service_enter_stop(s, false);
2238 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2239 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2242 case SERVICE_STOP_SIGTERM:
2243 log_warning("%s stopping timed out. Killing.", u->meta.id);
2244 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2247 case SERVICE_STOP_SIGKILL:
2248 /* Uh, wie sent a SIGKILL and it is still not gone?
2249 * Must be something we cannot kill, so let's just be
2250 * weirded out and continue */
2252 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2253 service_enter_stop_post(s, false);
2256 case SERVICE_STOP_POST:
2257 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2258 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2261 case SERVICE_FINAL_SIGTERM:
2262 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2263 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2266 case SERVICE_FINAL_SIGKILL:
2267 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
2268 service_enter_dead(s, false, true);
2271 case SERVICE_AUTO_RESTART:
2272 log_debug("%s holdoff time over, scheduling restart.", u->meta.id);
2273 service_enter_restart(s);
2277 assert_not_reached("Timeout at wrong time.");
2281 static void service_cgroup_notify_event(Unit *u) {
2282 Service *s = SERVICE(u);
2286 log_debug("%s: cgroup is empty", u->meta.id);
2290 /* Waiting for SIGCHLD is usually more interesting,
2291 * because it includes return codes/signals. Which is
2292 * why we ignore the cgroup events for most cases,
2293 * except when we don't know pid which to expect the
2296 case SERVICE_RUNNING:
2297 service_enter_running(s, true);
2305 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
2306 Service *s = SERVICE(u);
2311 if (s->notify_access == NOTIFY_NONE) {
2312 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2313 u->meta.id, (unsigned long) pid);
2317 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2318 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2319 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2323 log_debug("%s: Got message", u->meta.id);
2325 /* Interpret MAINPID= */
2326 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2327 (s->state == SERVICE_START ||
2328 s->state == SERVICE_START_POST ||
2329 s->state == SERVICE_RUNNING ||
2330 s->state == SERVICE_RELOAD)) {
2332 if (parse_pid(e + 8, &pid) < 0)
2333 log_warning("Failed to parse %s", e);
2335 log_debug("%s: got %s", u->meta.id, e);
2336 service_set_main_pid(s, pid);
2340 /* Interpret READY= */
2341 if (s->type == SERVICE_NOTIFY &&
2342 s->state == SERVICE_START &&
2343 strv_find(tags, "READY=1")) {
2344 log_debug("%s: got READY=1", u->meta.id);
2346 service_enter_start_post(s);
2349 /* Interpret STATUS= */
2350 if ((e = strv_find_prefix(tags, "STATUS="))) {
2353 if (!(t = strdup(e+7))) {
2354 log_error("Failed to allocate string.");
2358 log_debug("%s: got %s", u->meta.id, e);
2360 free(s->status_text);
2365 static int service_enumerate(Manager *m) {
2369 char *path = NULL, *fpath = NULL, *name = NULL;
2374 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
2375 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2380 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2388 if (!(d = opendir(path))) {
2389 if (errno != ENOENT)
2390 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2395 while ((de = readdir(d))) {
2399 if (ignore_file(de->d_name))
2402 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2405 if (strlen(de->d_name) < 4)
2408 a = undecchar(de->d_name[1]);
2409 b = undecchar(de->d_name[2]);
2416 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2421 if (access(fpath, X_OK) < 0) {
2423 if (errno != ENOENT)
2424 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2430 if (!(name = sysv_translate_name(de->d_name + 3))) {
2435 if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) {
2436 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2440 if (de->d_name[0] == 'S' &&
2441 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
2442 SERVICE(service)->sysv_start_priority =
2443 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
2445 manager_dispatch_load_queue(m);
2446 service = unit_follow_merge(service);
2448 if (de->d_name[0] == 'S') {
2449 Unit *runlevel_target;
2451 if ((r = manager_load_unit(m, rcnd_table[i].target, NULL, &runlevel_target)) < 0)
2454 if ((r = unit_add_dependency(runlevel_target, UNIT_WANTS, service, true)) < 0)
2457 if ((r = unit_add_dependency(service, UNIT_BEFORE, runlevel_target, true)) < 0)
2460 } else if (de->d_name[0] == 'K' &&
2461 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2462 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
2463 Unit *shutdown_target;
2465 /* We honour K links only for
2466 * halt/reboot. For the normal
2467 * runlevels we assume the
2469 * implicitly added by the
2470 * core logic. Also, we don't
2471 * really distuingish here
2472 * between the runlevels 0 and
2473 * 6 and just add them to the
2474 * special shutdown target. On
2475 * SUSE the boot.d/ runlevel
2476 * is also used for shutdown,
2477 * so we add links for that
2478 * too to the shutdown
2481 if ((r = manager_load_unit(m, SPECIAL_SHUTDOWN_TARGET, NULL, &shutdown_target)) < 0)
2484 if ((r = unit_add_dependency(service, UNIT_CONFLICTS, shutdown_target, true)) < 0)
2487 if ((r = unit_add_dependency(service, UNIT_BEFORE, shutdown_target, true)) < 0)
2506 static void service_bus_name_owner_change(
2509 const char *old_owner,
2510 const char *new_owner) {
2512 Service *s = SERVICE(u);
2517 assert(streq(s->bus_name, name));
2518 assert(old_owner || new_owner);
2520 if (old_owner && new_owner)
2521 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2523 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2525 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2527 s->bus_name_good = !!new_owner;
2529 if (s->type == SERVICE_DBUS) {
2531 /* service_enter_running() will figure out what to
2533 if (s->state == SERVICE_RUNNING)
2534 service_enter_running(s, true);
2535 else if (s->state == SERVICE_START && new_owner)
2536 service_enter_start_post(s);
2538 } else if (new_owner &&
2540 (s->state == SERVICE_START ||
2541 s->state == SERVICE_START_POST ||
2542 s->state == SERVICE_RUNNING ||
2543 s->state == SERVICE_RELOAD)) {
2545 /* Try to acquire PID from bus service */
2546 log_debug("Trying to acquire PID from D-Bus name...");
2548 bus_query_pid(u->meta.manager, name);
2552 static void service_bus_query_pid_done(
2557 Service *s = SERVICE(u);
2562 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2564 if (s->main_pid <= 0 &&
2565 (s->state == SERVICE_START ||
2566 s->state == SERVICE_START_POST ||
2567 s->state == SERVICE_RUNNING ||
2568 s->state == SERVICE_RELOAD))
2569 service_set_main_pid(s, pid);
2572 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
2576 /* This is called by the socket code when instantiating a new
2577 * service for a stream socket and the socket needs to be
2580 if (s->meta.load_state != UNIT_LOADED)
2583 if (s->socket_fd >= 0)
2586 if (s->state != SERVICE_DEAD)
2590 s->got_socket_fd = true;
2596 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2597 [SERVICE_DEAD] = "dead",
2598 [SERVICE_START_PRE] = "start-pre",
2599 [SERVICE_START] = "start",
2600 [SERVICE_START_POST] = "start-post",
2601 [SERVICE_RUNNING] = "running",
2602 [SERVICE_EXITED] = "exited",
2603 [SERVICE_RELOAD] = "reload",
2604 [SERVICE_STOP] = "stop",
2605 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2606 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2607 [SERVICE_STOP_POST] = "stop-post",
2608 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2609 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
2610 [SERVICE_MAINTENANCE] = "maintenance",
2611 [SERVICE_AUTO_RESTART] = "auto-restart",
2614 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2616 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2617 [SERVICE_ONCE] = "once",
2618 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
2619 [SERVICE_RESTART_ALWAYS] = "restart-always",
2622 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2624 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
2625 [SERVICE_FORKING] = "forking",
2626 [SERVICE_SIMPLE] = "simple",
2627 [SERVICE_FINISH] = "finish",
2628 [SERVICE_DBUS] = "dbus",
2629 [SERVICE_NOTIFY] = "notify"
2632 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2634 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
2635 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2636 [SERVICE_EXEC_START] = "ExecStart",
2637 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2638 [SERVICE_EXEC_RELOAD] = "ExecReload",
2639 [SERVICE_EXEC_STOP] = "ExecStop",
2640 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2643 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2645 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
2646 [NOTIFY_NONE] = "none",
2647 [NOTIFY_MAIN] = "main",
2648 [NOTIFY_ALL] = "all"
2651 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
2653 const UnitVTable service_vtable = {
2654 .suffix = ".service",
2656 .init = service_init,
2657 .done = service_done,
2658 .load = service_load,
2660 .coldplug = service_coldplug,
2662 .dump = service_dump,
2664 .start = service_start,
2665 .stop = service_stop,
2666 .reload = service_reload,
2668 .can_reload = service_can_reload,
2670 .serialize = service_serialize,
2671 .deserialize_item = service_deserialize_item,
2673 .active_state = service_active_state,
2674 .sub_state_to_string = service_sub_state_to_string,
2676 .check_gc = service_check_gc,
2677 .check_snapshot = service_check_snapshot,
2679 .sigchld_event = service_sigchld_event,
2680 .timer_event = service_timer_event,
2682 .cgroup_notify_empty = service_cgroup_notify_event,
2683 .notify_message = service_notify_message,
2685 .bus_name_owner_change = service_bus_name_owner_change,
2686 .bus_query_pid_done = service_bus_query_pid_done,
2688 .bus_message_handler = bus_service_message_handler,
2690 .enumerate = service_enumerate