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_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_MAINTENANCE,
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;
147 exec_status_start(&s->main_exec_status, pid);
152 static void service_close_socket_fd(Service *s) {
155 if (s->socket_fd < 0)
158 close_nointr_nofail(s->socket_fd);
162 static void service_connection_unref(Service *s) {
168 socket_connection_unref(s->socket);
172 static void service_done(Unit *u) {
173 Service *s = SERVICE(u);
183 free(s->sysv_runlevels);
184 s->sysv_runlevels = NULL;
186 free(s->status_text);
187 s->status_text = NULL;
189 exec_context_done(&s->exec_context);
190 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
191 s->control_command = NULL;
193 /* This will leak a process, but at least no memory or any of
195 service_unwatch_main_pid(s);
196 service_unwatch_control_pid(s);
199 unit_unwatch_bus_name(UNIT(u), s->bus_name);
204 service_close_socket_fd(s);
205 service_connection_unref(s);
207 unit_unwatch_timer(u, &s->timer_watch);
210 static char *sysv_translate_name(const char *name) {
213 if (!(r = new(char, strlen(name) + sizeof(".service"))))
216 if (startswith(name, "boot."))
217 /* Drop SuSE-style boot. prefix */
218 strcpy(stpcpy(r, name + 5), ".service");
219 else if (endswith(name, ".sh"))
220 /* Drop Debian-style .sh suffix */
221 strcpy(stpcpy(r, name) - 3, ".service");
223 /* Normal init scripts */
224 strcpy(stpcpy(r, name), ".service");
229 static int sysv_translate_facility(const char *name, char **_r) {
231 static const char * const table[] = {
232 /* LSB defined facilities */
233 "$local_fs", SPECIAL_LOCAL_FS_TARGET,
234 "$network", SPECIAL_NETWORK_TARGET,
235 "$named", SPECIAL_NSS_LOOKUP_TARGET,
236 "$portmap", SPECIAL_RPCBIND_TARGET,
237 "$remote_fs", SPECIAL_REMOTE_FS_TARGET,
238 "$syslog", SPECIAL_SYSLOG_TARGET,
239 "$time", SPECIAL_RTC_SET_TARGET,
241 /* Debian extensions */
242 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
243 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
244 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
250 for (i = 0; i < ELEMENTSOF(table); i += 2)
251 if (streq(table[i], name)) {
252 if (!(r = strdup(table[i+1])))
261 if (!(r = sysv_translate_name(name)))
272 static int sysv_fix_order(Service *s) {
278 if (s->sysv_start_priority < 0)
281 /* For each pair of services where at least one lacks a LSB
282 * header, we use the start priority value to order things. */
284 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
288 t = (Service*) other;
293 if (t->sysv_start_priority < 0)
296 /* If both units have modern headers we don't care
297 * about the priorities */
298 if ((!s->sysv_path || s->sysv_has_lsb) &&
299 (!t->sysv_path || t->sysv_has_lsb))
302 if (t->sysv_start_priority < s->sysv_start_priority)
304 else if (t->sysv_start_priority > s->sysv_start_priority)
309 /* FIXME: Maybe we should compare the name here lexicographically? */
311 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
318 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
321 if (!(c = new0(ExecCommand, 1)))
324 if (!(c->path = strdup(path))) {
329 if (!(c->argv = strv_new(path, arg1, NULL))) {
338 static int sysv_exec_commands(Service *s) {
342 assert(s->sysv_path);
344 if (!(c = exec_command_new(s->sysv_path, "start")))
346 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
348 if (!(c = exec_command_new(s->sysv_path, "stop")))
350 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
352 if (!(c = exec_command_new(s->sysv_path, "reload")))
354 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
359 static int service_load_sysv_path(Service *s, const char *path) {
376 if (!(f = fopen(path, "re"))) {
377 r = errno == ENOENT ? 0 : -errno;
382 if (!(s->sysv_path = strdup(path))) {
388 char l[LINE_MAX], *t;
390 if (!fgets(l, sizeof(l), f)) {
395 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
405 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
407 s->sysv_has_lsb = true;
411 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
417 t += strspn(t, WHITESPACE);
419 if (state == NORMAL) {
421 /* Try to parse Red Hat style chkconfig headers */
423 if (startswith_no_case(t, "chkconfig:")) {
425 char runlevels[16], *k;
429 if (sscanf(t+10, "%15s %i %*i",
431 &start_priority) != 2) {
433 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
437 /* A start priority gathered from the
438 * symlink farms is preferred over the
439 * data from the LSB header. */
440 if (start_priority < 0 || start_priority > 99)
441 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
442 else if (s->sysv_start_priority < 0)
443 s->sysv_start_priority = start_priority;
445 char_array_0(runlevels);
446 k = delete_chars(runlevels, WHITESPACE "-");
451 if (!(d = strdup(k))) {
456 free(s->sysv_runlevels);
457 s->sysv_runlevels = d;
460 } else if (startswith_no_case(t, "description:")) {
462 size_t k = strlen(t);
465 if (t[k-1] == '\\') {
470 if (!(d = strdup(strstrip(t+12)))) {
475 free(u->meta.description);
476 u->meta.description = d;
478 } else if (startswith_no_case(t, "pidfile:")) {
485 if (!path_is_absolute(fn)) {
486 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
490 if (!(fn = strdup(fn))) {
499 } else if (state == DESCRIPTION) {
501 /* Try to parse Red Hat style description
504 size_t k = strlen(t);
512 assert(u->meta.description);
513 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
518 free(u->meta.description);
519 u->meta.description = d;
521 } else if (state == LSB || state == LSB_DESCRIPTION) {
523 if (startswith_no_case(t, "Provides:")) {
529 FOREACH_WORD(w, z, t+9, i) {
532 if (!(n = strndup(w, z))) {
537 r = sysv_translate_facility(n, &m);
546 if (unit_name_to_type(m) == UNIT_SERVICE)
547 r = unit_add_name(u, m);
549 r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_REQUIRES, 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 s->meta.default_dependencies = false;
679 /* Don't timeout special services during boot (like fsck) */
683 /* Special setting for all SysV services */
684 s->type = SERVICE_FORKING;
685 s->valid_no_process = true;
686 s->kill_mode = KILL_PROCESS_GROUP;
687 s->restart = SERVICE_ONCE;
689 u->meta.load_state = UNIT_LOADED;
700 static int service_load_sysv_name(Service *s, const char *name) {
706 /* For SysV services we strip the boot. or .sh
707 * prefixes/suffixes. */
708 if (startswith(name, "boot.") ||
709 endswith(name, ".sh.service"))
712 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
716 if (asprintf(&path, "%s/%s", *p, name) < 0)
719 assert(endswith(path, ".service"));
720 path[strlen(path)-8] = 0;
722 r = service_load_sysv_path(s, path);
724 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
725 /* Try Debian style xxx.sh source'able init scripts */
727 r = service_load_sysv_path(s, path);
732 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
733 /* Try SUSE style boot.xxx init scripts */
735 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
738 path[strlen(path)-8] = 0;
739 r = service_load_sysv_path(s, path);
746 if ((s->meta.load_state != UNIT_STUB))
753 static int service_load_sysv(Service *s) {
760 /* Load service data from SysV init scripts, preferably with
763 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
766 if ((t = s->meta.id))
767 if ((r = service_load_sysv_name(s, t)) < 0)
770 if (s->meta.load_state == UNIT_STUB)
771 SET_FOREACH(t, s->meta.names, i) {
775 if ((r == service_load_sysv_name(s, t)) < 0)
778 if (s->meta.load_state != UNIT_STUB)
785 static int service_add_bus_name(Service *s) {
792 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
795 r = unit_merge_by_name(UNIT(s), n);
801 static int service_verify(Service *s) {
804 if (s->meta.load_state != UNIT_LOADED)
807 if (!s->exec_command[SERVICE_EXEC_START]) {
808 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
812 if (s->exec_command[SERVICE_EXEC_START]->command_next) {
813 log_error("%s has more than one ExecStart setting. Refusing.", s->meta.id);
817 if (s->type == SERVICE_DBUS && !s->bus_name) {
818 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
822 if (s->exec_context.pam_name && s->kill_mode != KILL_CONTROL_GROUP) {
823 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
830 static int service_add_default_dependencies(Service *s) {
835 /* Add a number of automatic dependencies useful for the
836 * majority of services. */
838 /* First, pull in base system */
839 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
841 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
844 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
846 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
850 /* Second, activate normal shutdown */
851 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
854 static int service_load(Unit *u) {
856 Service *s = SERVICE(u);
860 /* Load a .service file */
861 if ((r = unit_load_fragment(u)) < 0)
864 /* Load a classic init script as a fallback, if we couldn't find anything */
865 if (u->meta.load_state == UNIT_STUB)
866 if ((r = service_load_sysv(s)) < 0)
869 /* Still nothing found? Then let's give up */
870 if (u->meta.load_state == UNIT_STUB)
873 /* We were able to load something, then let's add in the
874 * dropin directories. */
875 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
878 /* This is a new unit? Then let's add in some extras */
879 if (u->meta.load_state == UNIT_LOADED) {
880 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
883 if ((r = unit_add_default_cgroup(u)) < 0)
886 if ((r = sysv_fix_order(s)) < 0)
890 if ((r = service_add_bus_name(s)) < 0)
893 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
897 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
898 s->notify_access = NOTIFY_MAIN;
900 if (s->type == SERVICE_DBUS || s->bus_name)
901 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
904 if (s->meta.default_dependencies)
905 if ((r = service_add_default_dependencies(s)) < 0)
909 return service_verify(s);
912 static void service_dump(Unit *u, FILE *f, const char *prefix) {
914 ServiceExecCommand c;
915 Service *s = SERVICE(u);
921 p2 = strappend(prefix, "\t");
922 prefix2 = p2 ? p2 : prefix;
925 "%sService State: %s\n"
926 "%sPermissionsStartOnly: %s\n"
927 "%sRootDirectoryStartOnly: %s\n"
928 "%sValidNoProcess: %s\n"
931 "%sNotifyAccess: %s\n",
932 prefix, service_state_to_string(s->state),
933 prefix, yes_no(s->permissions_start_only),
934 prefix, yes_no(s->root_directory_start_only),
935 prefix, yes_no(s->valid_no_process),
936 prefix, kill_mode_to_string(s->kill_mode),
937 prefix, service_type_to_string(s->type),
938 prefix, notify_access_to_string(s->notify_access));
940 if (s->control_pid > 0)
942 "%sControl PID: %lu\n",
943 prefix, (unsigned long) s->control_pid);
948 prefix, (unsigned long) s->main_pid);
953 prefix, s->pid_file);
958 "%sBus Name Good: %s\n",
960 prefix, yes_no(s->bus_name_good));
962 exec_context_dump(&s->exec_context, f, prefix);
964 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
966 if (!s->exec_command[c])
969 fprintf(f, "%s-> %s:\n",
970 prefix, service_exec_command_to_string(c));
972 exec_command_dump_list(s->exec_command[c], f, prefix2);
977 "%sSysV Init Script Path: %s\n"
978 "%sSysV Init Script has LSB Header: %s\n",
979 prefix, s->sysv_path,
980 prefix, yes_no(s->sysv_has_lsb));
982 if (s->sysv_start_priority >= 0)
984 "%sSysVStartPriority: %i\n",
985 prefix, s->sysv_start_priority);
987 if (s->sysv_runlevels)
988 fprintf(f, "%sSysVRunLevels: %s\n",
989 prefix, s->sysv_runlevels);
992 fprintf(f, "%sStatus Text: %s\n",
993 prefix, s->status_text);
998 static int service_load_pid_file(Service *s) {
1005 if (s->main_pid_known)
1008 assert(s->main_pid <= 0);
1013 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1016 r = parse_pid(k, &pid);
1022 if (kill(pid, 0) < 0 && errno != EPERM) {
1023 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1024 (unsigned long) pid, s->pid_file);
1028 if ((r = service_set_main_pid(s, pid)) < 0)
1031 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1032 /* FIXME: we need to do something here */
1038 static int service_get_sockets(Service *s, Set **_set) {
1047 if (s->socket_fd >= 0)
1050 /* Collects all Socket objects that belong to this
1051 * service. Note that a service might have multiple sockets
1052 * via multiple names. */
1054 if (!(set = set_new(NULL, NULL)))
1057 SET_FOREACH(t, s->meta.names, i) {
1061 /* Look for all socket objects that go by any of our
1062 * units and collect their fds */
1064 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1069 p = manager_get_unit(s->meta.manager, k);
1075 if ((r = set_put(set, p)) < 0)
1087 static int service_notify_sockets_dead(Service *s) {
1095 if (s->socket_fd >= 0)
1098 /* Notifies all our sockets when we die */
1099 if ((r = service_get_sockets(s, &set)) < 0)
1102 SET_FOREACH(sock, set, i)
1103 socket_notify_service_dead(sock);
1110 static void service_set_state(Service *s, ServiceState state) {
1111 ServiceState old_state;
1114 old_state = s->state;
1117 if (state != SERVICE_START_PRE &&
1118 state != SERVICE_START &&
1119 state != SERVICE_START_POST &&
1120 state != SERVICE_RELOAD &&
1121 state != SERVICE_STOP &&
1122 state != SERVICE_STOP_SIGTERM &&
1123 state != SERVICE_STOP_SIGKILL &&
1124 state != SERVICE_STOP_POST &&
1125 state != SERVICE_FINAL_SIGTERM &&
1126 state != SERVICE_FINAL_SIGKILL &&
1127 state != SERVICE_AUTO_RESTART)
1128 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1130 if (state != SERVICE_START &&
1131 state != SERVICE_START_POST &&
1132 state != SERVICE_RUNNING &&
1133 state != SERVICE_RELOAD &&
1134 state != SERVICE_STOP &&
1135 state != SERVICE_STOP_SIGTERM &&
1136 state != SERVICE_STOP_SIGKILL)
1137 service_unwatch_main_pid(s);
1139 if (state != SERVICE_START_PRE &&
1140 state != SERVICE_START &&
1141 state != SERVICE_START_POST &&
1142 state != SERVICE_RELOAD &&
1143 state != SERVICE_STOP &&
1144 state != SERVICE_STOP_SIGTERM &&
1145 state != SERVICE_STOP_SIGKILL &&
1146 state != SERVICE_STOP_POST &&
1147 state != SERVICE_FINAL_SIGTERM &&
1148 state != SERVICE_FINAL_SIGKILL) {
1149 service_unwatch_control_pid(s);
1150 s->control_command = NULL;
1151 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1154 if (state == SERVICE_DEAD ||
1155 state == SERVICE_STOP ||
1156 state == SERVICE_STOP_SIGTERM ||
1157 state == SERVICE_STOP_SIGKILL ||
1158 state == SERVICE_STOP_POST ||
1159 state == SERVICE_FINAL_SIGTERM ||
1160 state == SERVICE_FINAL_SIGKILL ||
1161 state == SERVICE_MAINTENANCE ||
1162 state == SERVICE_AUTO_RESTART)
1163 service_notify_sockets_dead(s);
1165 if (state != SERVICE_START_PRE &&
1166 state != SERVICE_START &&
1167 state != SERVICE_START_POST &&
1168 state != SERVICE_RUNNING &&
1169 state != SERVICE_RELOAD &&
1170 state != SERVICE_STOP &&
1171 state != SERVICE_STOP_SIGTERM &&
1172 state != SERVICE_STOP_SIGKILL &&
1173 state != SERVICE_STOP_POST &&
1174 state != SERVICE_FINAL_SIGTERM &&
1175 state != SERVICE_FINAL_SIGKILL &&
1176 !(state == SERVICE_DEAD && s->meta.job)) {
1177 service_close_socket_fd(s);
1178 service_connection_unref(s);
1181 if (old_state != state)
1182 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
1184 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
1187 static int service_coldplug(Unit *u) {
1188 Service *s = SERVICE(u);
1192 assert(s->state == SERVICE_DEAD);
1194 if (s->deserialized_state != s->state) {
1196 if (s->deserialized_state == SERVICE_START_PRE ||
1197 s->deserialized_state == SERVICE_START ||
1198 s->deserialized_state == SERVICE_START_POST ||
1199 s->deserialized_state == SERVICE_RELOAD ||
1200 s->deserialized_state == SERVICE_STOP ||
1201 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1202 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1203 s->deserialized_state == SERVICE_STOP_POST ||
1204 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1205 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1206 s->deserialized_state == SERVICE_AUTO_RESTART) {
1208 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1211 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1213 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1218 if ((s->deserialized_state == SERVICE_START &&
1219 (s->type == SERVICE_FORKING ||
1220 s->type == SERVICE_DBUS ||
1221 s->type == SERVICE_FINISH ||
1222 s->type == SERVICE_NOTIFY)) ||
1223 s->deserialized_state == SERVICE_START_POST ||
1224 s->deserialized_state == SERVICE_RUNNING ||
1225 s->deserialized_state == SERVICE_RELOAD ||
1226 s->deserialized_state == SERVICE_STOP ||
1227 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1228 s->deserialized_state == SERVICE_STOP_SIGKILL)
1229 if (s->main_pid > 0)
1230 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1233 if (s->deserialized_state == SERVICE_START_PRE ||
1234 s->deserialized_state == SERVICE_START ||
1235 s->deserialized_state == SERVICE_START_POST ||
1236 s->deserialized_state == SERVICE_RELOAD ||
1237 s->deserialized_state == SERVICE_STOP ||
1238 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1239 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1240 s->deserialized_state == SERVICE_STOP_POST ||
1241 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1242 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1243 if (s->control_pid > 0)
1244 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1247 service_set_state(s, s->deserialized_state);
1253 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1257 unsigned rn_fds = 0;
1265 if (s->socket_fd >= 0)
1268 if ((r = service_get_sockets(s, &set)) < 0)
1271 SET_FOREACH(sock, set, i) {
1275 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1287 if (!(t = new(int, rn_fds+cn_fds))) {
1293 memcpy(t, rfds, rn_fds);
1294 memcpy(t+rn_fds, cfds, cn_fds);
1299 rn_fds = rn_fds+cn_fds;
1317 static int service_spawn(
1322 bool apply_permissions,
1324 bool set_notify_socket,
1329 int *fds = NULL, *fdsbuf = NULL;
1331 char **argv = NULL, **env = NULL;
1338 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1339 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1340 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1342 if (s->socket_fd >= 0) {
1343 fds = &s->socket_fd;
1346 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1353 if (timeout && s->timeout_usec) {
1354 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1357 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1359 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1364 if (set_notify_socket) {
1367 if (asprintf(&t, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
1372 env = strv_env_set(s->meta.manager->environment, t);
1380 env = s->meta.manager->environment;
1389 s->meta.manager->confirm_spawn,
1390 s->meta.cgroup_bondings,
1396 if (set_notify_socket)
1406 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1407 /* FIXME: we need to do something here */
1419 if (set_notify_socket)
1423 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1428 static int main_pid_good(Service *s) {
1431 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1434 /* If we know the pid file, then lets just check if it is
1436 if (s->main_pid_known)
1437 return s->main_pid > 0;
1439 /* We don't know the pid */
1443 static int control_pid_good(Service *s) {
1446 return s->control_pid > 0;
1449 static int cgroup_good(Service *s) {
1454 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
1460 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1467 if (allow_restart &&
1469 (s->restart == SERVICE_RESTART_ALWAYS ||
1470 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1472 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1475 service_set_state(s, SERVICE_AUTO_RESTART);
1477 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
1482 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
1483 service_enter_dead(s, false, false);
1486 static void service_enter_signal(Service *s, ServiceState state, bool success);
1488 static void service_enter_stop_post(Service *s, bool success) {
1495 service_unwatch_control_pid(s);
1497 s->control_command_id = SERVICE_EXEC_STOP_POST;
1498 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1499 if ((r = service_spawn(s,
1503 !s->permissions_start_only,
1504 !s->root_directory_start_only,
1506 &s->control_pid)) < 0)
1510 service_set_state(s, SERVICE_STOP_POST);
1512 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1517 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
1518 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1521 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1530 if (s->kill_mode != KILL_NONE) {
1531 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
1533 if (s->kill_mode == KILL_CONTROL_GROUP) {
1535 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
1536 if (r != -EAGAIN && r != -ESRCH)
1545 if (s->main_pid > 0) {
1546 if (kill(s->kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
1552 if (s->control_pid > 0) {
1553 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
1564 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
1565 if (s->timeout_usec > 0)
1566 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1569 service_set_state(s, state);
1570 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1571 service_enter_stop_post(s, true);
1573 service_enter_dead(s, true, true);
1578 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
1580 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1581 service_enter_stop_post(s, false);
1583 service_enter_dead(s, false, true);
1586 static void service_enter_stop(Service *s, bool success) {
1594 service_unwatch_control_pid(s);
1596 s->control_command_id = SERVICE_EXEC_STOP;
1597 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1598 if ((r = service_spawn(s,
1602 !s->permissions_start_only,
1603 !s->root_directory_start_only,
1605 &s->control_pid)) < 0)
1608 service_set_state(s, SERVICE_STOP);
1610 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1615 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
1616 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1619 static void service_enter_running(Service *s, bool success) {
1620 int main_pid_ok, cgroup_ok;
1626 main_pid_ok = main_pid_good(s);
1627 cgroup_ok = cgroup_good(s);
1629 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
1630 (s->bus_name_good || s->type != SERVICE_DBUS))
1631 service_set_state(s, SERVICE_RUNNING);
1632 else if (s->valid_no_process)
1633 service_set_state(s, SERVICE_EXITED);
1635 service_enter_stop(s, true);
1638 static void service_enter_start_post(Service *s) {
1642 service_unwatch_control_pid(s);
1644 s->control_command_id = SERVICE_EXEC_START_POST;
1645 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
1646 if ((r = service_spawn(s,
1650 !s->permissions_start_only,
1651 !s->root_directory_start_only,
1653 &s->control_pid)) < 0)
1656 service_set_state(s, SERVICE_START_POST);
1658 service_enter_running(s, true);
1663 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
1664 service_enter_stop(s, false);
1667 static void service_enter_start(Service *s) {
1673 assert(s->exec_command[SERVICE_EXEC_START]);
1674 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1676 if (s->type == SERVICE_FORKING)
1677 service_unwatch_control_pid(s);
1679 service_unwatch_main_pid(s);
1681 if ((r = service_spawn(s,
1682 s->exec_command[SERVICE_EXEC_START],
1683 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
1687 s->notify_access != NOTIFY_NONE,
1691 if (s->type == SERVICE_SIMPLE) {
1692 /* For simple services we immediately start
1693 * the START_POST binaries. */
1695 service_set_main_pid(s, pid);
1696 service_enter_start_post(s);
1698 } else if (s->type == SERVICE_FORKING) {
1700 /* For forking services we wait until the start
1701 * process exited. */
1703 s->control_command_id = SERVICE_EXEC_START;
1704 s->control_command = s->exec_command[SERVICE_EXEC_START];
1706 s->control_pid = pid;
1707 service_set_state(s, SERVICE_START);
1709 } else if (s->type == SERVICE_FINISH ||
1710 s->type == SERVICE_DBUS ||
1711 s->type == SERVICE_NOTIFY) {
1713 /* For finishing services we wait until the start
1714 * process exited, too, but it is our main process. */
1716 /* For D-Bus services we know the main pid right away,
1717 * but wait for the bus name to appear on the
1718 * bus. Notify services are similar. */
1720 service_set_main_pid(s, pid);
1721 service_set_state(s, SERVICE_START);
1723 assert_not_reached("Unknown service type");
1728 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
1729 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1732 static void service_enter_start_pre(Service *s) {
1737 service_unwatch_control_pid(s);
1739 s->control_command_id = SERVICE_EXEC_START_PRE;
1740 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
1741 if ((r = service_spawn(s,
1745 !s->permissions_start_only,
1746 !s->root_directory_start_only,
1748 &s->control_pid)) < 0)
1751 service_set_state(s, SERVICE_START_PRE);
1753 service_enter_start(s);
1758 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
1759 service_enter_dead(s, false, true);
1762 static void service_enter_restart(Service *s) {
1766 service_enter_dead(s, true, false);
1768 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
1771 log_debug("%s scheduled restart job.", s->meta.id);
1776 log_warning("%s failed to schedule restart job: %s", s->meta.id, strerror(-r));
1777 service_enter_dead(s, false, false);
1780 static void service_enter_reload(Service *s) {
1785 service_unwatch_control_pid(s);
1787 s->control_command_id = SERVICE_EXEC_RELOAD;
1788 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
1789 if ((r = service_spawn(s,
1793 !s->permissions_start_only,
1794 !s->root_directory_start_only,
1796 &s->control_pid)) < 0)
1799 service_set_state(s, SERVICE_RELOAD);
1801 service_enter_running(s, true);
1806 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
1807 service_enter_stop(s, false);
1810 static void service_run_next(Service *s, bool success) {
1814 assert(s->control_command);
1815 assert(s->control_command->command_next);
1820 s->control_command = s->control_command->command_next;
1822 service_unwatch_control_pid(s);
1824 if ((r = service_spawn(s,
1828 !s->permissions_start_only,
1829 !s->root_directory_start_only,
1831 &s->control_pid)) < 0)
1837 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
1839 if (s->state == SERVICE_START_PRE)
1840 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1841 else if (s->state == SERVICE_STOP)
1842 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1843 else if (s->state == SERVICE_STOP_POST)
1844 service_enter_dead(s, false, true);
1846 service_enter_stop(s, false);
1849 static int service_start(Unit *u) {
1850 Service *s = SERVICE(u);
1854 /* We cannot fulfill this request right now, try again later
1856 if (s->state == SERVICE_STOP ||
1857 s->state == SERVICE_STOP_SIGTERM ||
1858 s->state == SERVICE_STOP_SIGKILL ||
1859 s->state == SERVICE_STOP_POST ||
1860 s->state == SERVICE_FINAL_SIGTERM ||
1861 s->state == SERVICE_FINAL_SIGKILL)
1864 /* Already on it! */
1865 if (s->state == SERVICE_START_PRE ||
1866 s->state == SERVICE_START ||
1867 s->state == SERVICE_START_POST)
1870 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
1872 /* Make sure we don't enter a busy loop of some kind. */
1873 if (!ratelimit_test(&s->ratelimit)) {
1874 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
1879 s->main_pid_known = false;
1880 s->allow_restart = true;
1882 service_enter_start_pre(s);
1886 static int service_stop(Unit *u) {
1887 Service *s = SERVICE(u);
1891 /* Cannot do this now */
1892 if (s->state == SERVICE_START_PRE ||
1893 s->state == SERVICE_START ||
1894 s->state == SERVICE_START_POST ||
1895 s->state == SERVICE_RELOAD)
1899 if (s->state == SERVICE_STOP ||
1900 s->state == SERVICE_STOP_SIGTERM ||
1901 s->state == SERVICE_STOP_SIGKILL ||
1902 s->state == SERVICE_STOP_POST ||
1903 s->state == SERVICE_FINAL_SIGTERM ||
1904 s->state == SERVICE_FINAL_SIGKILL)
1907 if (s->state == SERVICE_AUTO_RESTART) {
1908 service_set_state(s, SERVICE_DEAD);
1912 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1914 /* This is a user request, so don't do restarts on this
1916 s->allow_restart = false;
1918 service_enter_stop(s, true);
1922 static int service_reload(Unit *u) {
1923 Service *s = SERVICE(u);
1927 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1929 service_enter_reload(s);
1933 static bool service_can_reload(Unit *u) {
1934 Service *s = SERVICE(u);
1938 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1941 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1942 Service *s = SERVICE(u);
1948 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
1949 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1951 if (s->control_pid > 0)
1952 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
1954 if (s->main_pid_known && s->main_pid > 0)
1955 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
1957 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
1959 /* There's a minor uncleanliness here: if there are multiple
1960 * commands attached here, we will start from the first one
1962 if (s->control_command_id >= 0)
1963 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
1965 if (s->socket_fd >= 0) {
1968 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
1971 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
1977 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
1978 Service *s = SERVICE(u);
1986 if (streq(key, "state")) {
1989 if ((state = service_state_from_string(value)) < 0)
1990 log_debug("Failed to parse state value %s", value);
1992 s->deserialized_state = state;
1993 } else if (streq(key, "failure")) {
1996 if ((b = parse_boolean(value)) < 0)
1997 log_debug("Failed to parse failure value %s", value);
1999 s->failure = b || s->failure;
2000 } else if (streq(key, "control-pid")) {
2003 if ((r = parse_pid(value, &pid)) < 0)
2004 log_debug("Failed to parse control-pid value %s", value);
2006 s->control_pid = pid;
2007 } else if (streq(key, "main-pid")) {
2010 if ((r = parse_pid(value, &pid)) < 0)
2011 log_debug("Failed to parse main-pid value %s", value);
2013 service_set_main_pid(s, (pid_t) pid);
2014 } else if (streq(key, "main-pid-known")) {
2017 if ((b = parse_boolean(value)) < 0)
2018 log_debug("Failed to parse main-pid-known value %s", value);
2020 s->main_pid_known = b;
2021 } else if (streq(key, "control-command")) {
2022 ServiceExecCommand id;
2024 if ((id = service_exec_command_from_string(value)) < 0)
2025 log_debug("Failed to parse exec-command value %s", value);
2027 s->control_command_id = id;
2028 s->control_command = s->exec_command[id];
2030 } else if (streq(key, "socket-fd")) {
2033 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2034 log_debug("Failed to parse socket-fd value %s", value);
2037 if (s->socket_fd >= 0)
2038 close_nointr_nofail(s->socket_fd);
2039 s->socket_fd = fdset_remove(fds, fd);
2042 log_debug("Unknown serialization key '%s'", key);
2047 static UnitActiveState service_active_state(Unit *u) {
2050 return state_translation_table[SERVICE(u)->state];
2053 static const char *service_sub_state_to_string(Unit *u) {
2056 return service_state_to_string(SERVICE(u)->state);
2059 static bool service_check_gc(Unit *u) {
2060 Service *s = SERVICE(u);
2064 return !!s->sysv_path;
2067 static bool service_check_snapshot(Unit *u) {
2068 Service *s = SERVICE(u);
2072 return !s->got_socket_fd;
2075 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2076 Service *s = SERVICE(u);
2082 success = is_clean_exit(code, status);
2083 s->failure = s->failure || !success;
2085 if (s->main_pid == pid) {
2087 exec_status_exit(&s->main_exec_status, pid, code, status);
2090 if (s->type != SERVICE_FORKING) {
2091 assert(s->exec_command[SERVICE_EXEC_START]);
2092 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
2095 log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
2097 /* The service exited, so the service is officially
2102 case SERVICE_START_POST:
2103 case SERVICE_RELOAD:
2105 /* Need to wait until the operation is
2110 if (s->type == SERVICE_FINISH) {
2111 /* This was our main goal, so let's go on */
2113 service_enter_start_post(s);
2115 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2118 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2123 case SERVICE_RUNNING:
2124 service_enter_running(s, success);
2127 case SERVICE_STOP_SIGTERM:
2128 case SERVICE_STOP_SIGKILL:
2130 if (!control_pid_good(s))
2131 service_enter_stop_post(s, success);
2133 /* If there is still a control process, wait for that first */
2137 assert_not_reached("Uh, main process died at wrong time.");
2140 } else if (s->control_pid == pid) {
2142 if (s->control_command)
2143 exec_status_exit(&s->control_command->exec_status, pid, code, status);
2147 log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2149 /* If we are shutting things down anyway we
2150 * don't care about failing commands. */
2152 if (s->control_command && s->control_command->command_next && success) {
2154 /* There is another command to *
2155 * execute, so let's do that. */
2157 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
2158 service_run_next(s, success);
2161 /* No further commands for this step, so let's
2162 * figure out what to do next */
2164 s->control_command = NULL;
2165 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2167 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2171 case SERVICE_START_PRE:
2173 service_enter_start(s);
2175 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2179 assert(s->type == SERVICE_FORKING);
2181 /* Let's try to load the pid
2182 * file here if we can. We
2183 * ignore the return value,
2184 * since the PID file might
2185 * actually be created by a
2186 * START_POST script */
2190 service_load_pid_file(s);
2192 service_enter_start_post(s);
2194 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2198 case SERVICE_START_POST:
2199 if (success && s->pid_file && !s->main_pid_known) {
2202 /* Hmm, let's see if we can
2203 * load the pid now after the
2204 * start-post scripts got
2207 if ((r = service_load_pid_file(s)) < 0)
2208 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
2213 case SERVICE_RELOAD:
2215 service_enter_running(s, true);
2217 service_enter_stop(s, false);
2222 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2225 case SERVICE_STOP_SIGTERM:
2226 case SERVICE_STOP_SIGKILL:
2227 if (main_pid_good(s) <= 0)
2228 service_enter_stop_post(s, success);
2230 /* If there is still a service
2231 * process around, wait until
2232 * that one quit, too */
2235 case SERVICE_STOP_POST:
2236 case SERVICE_FINAL_SIGTERM:
2237 case SERVICE_FINAL_SIGKILL:
2238 service_enter_dead(s, success, true);
2242 assert_not_reached("Uh, control process died at wrong time.");
2248 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2249 Service *s = SERVICE(u);
2252 assert(elapsed == 1);
2254 assert(w == &s->timer_watch);
2258 case SERVICE_START_PRE:
2260 log_warning("%s operation timed out. Terminating.", u->meta.id);
2261 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2264 case SERVICE_START_POST:
2265 case SERVICE_RELOAD:
2266 log_warning("%s operation timed out. Stopping.", u->meta.id);
2267 service_enter_stop(s, false);
2271 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2272 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2275 case SERVICE_STOP_SIGTERM:
2276 log_warning("%s stopping timed out. Killing.", u->meta.id);
2277 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2280 case SERVICE_STOP_SIGKILL:
2281 /* Uh, wie sent a SIGKILL and it is still not gone?
2282 * Must be something we cannot kill, so let's just be
2283 * weirded out and continue */
2285 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2286 service_enter_stop_post(s, false);
2289 case SERVICE_STOP_POST:
2290 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2291 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2294 case SERVICE_FINAL_SIGTERM:
2295 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2296 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2299 case SERVICE_FINAL_SIGKILL:
2300 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
2301 service_enter_dead(s, false, true);
2304 case SERVICE_AUTO_RESTART:
2305 log_debug("%s holdoff time over, scheduling restart.", u->meta.id);
2306 service_enter_restart(s);
2310 assert_not_reached("Timeout at wrong time.");
2314 static void service_cgroup_notify_event(Unit *u) {
2315 Service *s = SERVICE(u);
2319 log_debug("%s: cgroup is empty", u->meta.id);
2323 /* Waiting for SIGCHLD is usually more interesting,
2324 * because it includes return codes/signals. Which is
2325 * why we ignore the cgroup events for most cases,
2326 * except when we don't know pid which to expect the
2329 case SERVICE_RUNNING:
2330 service_enter_running(s, true);
2338 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
2339 Service *s = SERVICE(u);
2344 if (s->notify_access == NOTIFY_NONE) {
2345 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2346 u->meta.id, (unsigned long) pid);
2350 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2351 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2352 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2356 log_debug("%s: Got message", u->meta.id);
2358 /* Interpret MAINPID= */
2359 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2360 (s->state == SERVICE_START ||
2361 s->state == SERVICE_START_POST ||
2362 s->state == SERVICE_RUNNING ||
2363 s->state == SERVICE_RELOAD)) {
2365 if (parse_pid(e + 8, &pid) < 0)
2366 log_warning("Failed to parse %s", e);
2368 log_debug("%s: got %s", u->meta.id, e);
2369 service_set_main_pid(s, pid);
2373 /* Interpret READY= */
2374 if (s->type == SERVICE_NOTIFY &&
2375 s->state == SERVICE_START &&
2376 strv_find(tags, "READY=1")) {
2377 log_debug("%s: got READY=1", u->meta.id);
2379 service_enter_start_post(s);
2382 /* Interpret STATUS= */
2383 if ((e = strv_find_prefix(tags, "STATUS="))) {
2386 if (!(t = strdup(e+7))) {
2387 log_error("Failed to allocate string.");
2391 log_debug("%s: got %s", u->meta.id, e);
2393 free(s->status_text);
2398 static int service_enumerate(Manager *m) {
2402 char *path = NULL, *fpath = NULL, *name = NULL;
2407 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
2408 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2413 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2421 if (!(d = opendir(path))) {
2422 if (errno != ENOENT)
2423 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2428 while ((de = readdir(d))) {
2432 if (ignore_file(de->d_name))
2435 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2438 if (strlen(de->d_name) < 4)
2441 a = undecchar(de->d_name[1]);
2442 b = undecchar(de->d_name[2]);
2449 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2454 if (access(fpath, X_OK) < 0) {
2456 if (errno != ENOENT)
2457 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2463 if (!(name = sysv_translate_name(de->d_name + 3))) {
2468 if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) {
2469 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2473 if (de->d_name[0] == 'S' &&
2474 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
2475 SERVICE(service)->sysv_start_priority =
2476 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
2478 manager_dispatch_load_queue(m);
2479 service = unit_follow_merge(service);
2481 if (de->d_name[0] == 'S') {
2483 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2486 } else if (de->d_name[0] == 'K' &&
2487 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2488 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
2490 /* We honour K links only for
2491 * halt/reboot. For the normal
2492 * runlevels we assume the
2494 * implicitly added by the
2495 * core logic. Also, we don't
2496 * really distuingish here
2497 * between the runlevels 0 and
2498 * 6 and just add them to the
2499 * special shutdown target. On
2500 * SUSE the boot.d/ runlevel
2501 * is also used for shutdown,
2502 * so we add links for that
2503 * too to the shutdown
2506 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2525 static void service_bus_name_owner_change(
2528 const char *old_owner,
2529 const char *new_owner) {
2531 Service *s = SERVICE(u);
2536 assert(streq(s->bus_name, name));
2537 assert(old_owner || new_owner);
2539 if (old_owner && new_owner)
2540 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2542 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2544 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2546 s->bus_name_good = !!new_owner;
2548 if (s->type == SERVICE_DBUS) {
2550 /* service_enter_running() will figure out what to
2552 if (s->state == SERVICE_RUNNING)
2553 service_enter_running(s, true);
2554 else if (s->state == SERVICE_START && new_owner)
2555 service_enter_start_post(s);
2557 } else if (new_owner &&
2559 (s->state == SERVICE_START ||
2560 s->state == SERVICE_START_POST ||
2561 s->state == SERVICE_RUNNING ||
2562 s->state == SERVICE_RELOAD)) {
2564 /* Try to acquire PID from bus service */
2565 log_debug("Trying to acquire PID from D-Bus name...");
2567 bus_query_pid(u->meta.manager, name);
2571 static void service_bus_query_pid_done(
2576 Service *s = SERVICE(u);
2581 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2583 if (s->main_pid <= 0 &&
2584 (s->state == SERVICE_START ||
2585 s->state == SERVICE_START_POST ||
2586 s->state == SERVICE_RUNNING ||
2587 s->state == SERVICE_RELOAD))
2588 service_set_main_pid(s, pid);
2591 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
2595 /* This is called by the socket code when instantiating a new
2596 * service for a stream socket and the socket needs to be
2599 if (s->meta.load_state != UNIT_LOADED)
2602 if (s->socket_fd >= 0)
2605 if (s->state != SERVICE_DEAD)
2609 s->got_socket_fd = true;
2615 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2616 [SERVICE_DEAD] = "dead",
2617 [SERVICE_START_PRE] = "start-pre",
2618 [SERVICE_START] = "start",
2619 [SERVICE_START_POST] = "start-post",
2620 [SERVICE_RUNNING] = "running",
2621 [SERVICE_EXITED] = "exited",
2622 [SERVICE_RELOAD] = "reload",
2623 [SERVICE_STOP] = "stop",
2624 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2625 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2626 [SERVICE_STOP_POST] = "stop-post",
2627 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2628 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
2629 [SERVICE_MAINTENANCE] = "maintenance",
2630 [SERVICE_AUTO_RESTART] = "auto-restart",
2633 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2635 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2636 [SERVICE_ONCE] = "once",
2637 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
2638 [SERVICE_RESTART_ALWAYS] = "restart-always",
2641 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2643 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
2644 [SERVICE_SIMPLE] = "simple",
2645 [SERVICE_FORKING] = "forking",
2646 [SERVICE_FINISH] = "finish",
2647 [SERVICE_DBUS] = "dbus",
2648 [SERVICE_NOTIFY] = "notify"
2651 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2653 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
2654 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2655 [SERVICE_EXEC_START] = "ExecStart",
2656 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2657 [SERVICE_EXEC_RELOAD] = "ExecReload",
2658 [SERVICE_EXEC_STOP] = "ExecStop",
2659 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2662 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2664 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
2665 [NOTIFY_NONE] = "none",
2666 [NOTIFY_MAIN] = "main",
2667 [NOTIFY_ALL] = "all"
2670 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
2672 const UnitVTable service_vtable = {
2673 .suffix = ".service",
2675 .init = service_init,
2676 .done = service_done,
2677 .load = service_load,
2679 .coldplug = service_coldplug,
2681 .dump = service_dump,
2683 .start = service_start,
2684 .stop = service_stop,
2685 .reload = service_reload,
2687 .can_reload = service_can_reload,
2689 .serialize = service_serialize,
2690 .deserialize_item = service_deserialize_item,
2692 .active_state = service_active_state,
2693 .sub_state_to_string = service_sub_state_to_string,
2695 .check_gc = service_check_gc,
2696 .check_snapshot = service_check_snapshot,
2698 .sigchld_event = service_sigchld_event,
2699 .timer_event = service_timer_event,
2701 .cgroup_notify_empty = service_cgroup_notify_event,
2702 .notify_message = service_notify_message,
2704 .bus_name_owner_change = service_bus_name_owner_change,
2705 .bus_query_pid_done = service_bus_query_pid_done,
2707 .bus_message_handler = bus_service_message_handler,
2709 .enumerate = service_enumerate