1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU 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"
36 #include "bus-errors.h"
38 #define COMMENTS "#;\n"
39 #define NEWLINES "\n\r"
41 #ifdef HAVE_SYSV_COMPAT
43 #define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
45 typedef enum RunlevelType {
54 const RunlevelType type;
56 /* Standard SysV runlevels for start-up */
57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
64 /* SUSE style boot.d */
65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
69 /* Debian style rcS.d */
70 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
75 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
84 #define RUNLEVELS_UP "12345"
85 /* #define RUNLEVELS_DOWN "06" */
86 /* #define RUNLEVELS_BOOT "bBsS" */
89 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
90 [SERVICE_DEAD] = UNIT_INACTIVE,
91 [SERVICE_START_PRE] = UNIT_ACTIVATING,
92 [SERVICE_START] = UNIT_ACTIVATING,
93 [SERVICE_START_POST] = UNIT_ACTIVATING,
94 [SERVICE_RUNNING] = UNIT_ACTIVE,
95 [SERVICE_EXITED] = UNIT_ACTIVE,
96 [SERVICE_RELOAD] = UNIT_RELOADING,
97 [SERVICE_STOP] = UNIT_DEACTIVATING,
98 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
101 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
103 [SERVICE_FAILED] = UNIT_FAILED,
104 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
107 static void service_init(Unit *u) {
108 Service *s = SERVICE(u);
111 assert(u->meta.load_state == UNIT_STUB);
113 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
114 s->restart_usec = DEFAULT_RESTART_USEC;
115 s->timer_watch.type = WATCH_INVALID;
116 #ifdef HAVE_SYSV_COMPAT
117 s->sysv_start_priority = -1;
121 exec_context_init(&s->exec_context);
123 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
125 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
128 static void service_unwatch_control_pid(Service *s) {
131 if (s->control_pid <= 0)
134 unit_unwatch_pid(UNIT(s), s->control_pid);
138 static void service_unwatch_main_pid(Service *s) {
141 if (s->main_pid <= 0)
144 unit_unwatch_pid(UNIT(s), s->main_pid);
148 static int service_set_main_pid(Service *s, pid_t pid) {
159 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
160 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
161 s->meta.id, (unsigned long) pid);
164 s->main_pid_known = true;
166 exec_status_start(&s->main_exec_status, pid);
171 static void service_close_socket_fd(Service *s) {
174 if (s->socket_fd < 0)
177 close_nointr_nofail(s->socket_fd);
181 static void service_connection_unref(Service *s) {
184 if (!s->accept_socket)
187 socket_connection_unref(s->accept_socket);
188 s->accept_socket = NULL;
191 static void service_done(Unit *u) {
192 Service *s = SERVICE(u);
199 #ifdef HAVE_SYSV_COMPAT
203 free(s->sysv_runlevels);
204 s->sysv_runlevels = NULL;
207 free(s->status_text);
208 s->status_text = NULL;
210 exec_context_done(&s->exec_context);
211 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
212 s->control_command = NULL;
214 /* This will leak a process, but at least no memory or any of
216 service_unwatch_main_pid(s);
217 service_unwatch_control_pid(s);
220 unit_unwatch_bus_name(UNIT(u), s->bus_name);
225 service_close_socket_fd(s);
226 service_connection_unref(s);
228 set_free(s->configured_sockets);
230 unit_unwatch_timer(u, &s->timer_watch);
233 #ifdef HAVE_SYSV_COMPAT
234 static char *sysv_translate_name(const char *name) {
237 if (!(r = new(char, strlen(name) + sizeof(".service"))))
240 if (startswith(name, "boot."))
241 /* Drop SuSE-style boot. prefix */
242 strcpy(stpcpy(r, name + 5), ".service");
243 else if (endswith(name, ".sh"))
244 /* Drop Debian-style .sh suffix */
245 strcpy(stpcpy(r, name) - 3, ".service");
247 else if (startswith(name, "@"))
248 /* Drop Arch-style background prefix */
249 strcpy(stpcpy(r, name + 1), ".service");
252 /* Normal init scripts */
253 strcpy(stpcpy(r, name), ".service");
258 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
260 /* We silently ignore the $ prefix here. According to the LSB
261 * spec it simply indicates whether something is a
262 * standardized name or a distribution-specific one. Since we
263 * just follow what already exists and do not introduce new
264 * uses or names we don't care who introduced a new name. */
266 static const char * const table[] = {
267 /* LSB defined facilities */
268 "local_fs", SPECIAL_LOCAL_FS_TARGET,
269 "network", SPECIAL_NETWORK_TARGET,
270 "named", SPECIAL_NSS_LOOKUP_TARGET,
271 "portmap", SPECIAL_RPCBIND_TARGET,
272 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
273 "syslog", SPECIAL_SYSLOG_TARGET,
274 "time", SPECIAL_RTC_SET_TARGET,
276 /* Debian extensions */
278 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
280 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
281 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
284 /* Fedora extensions */
285 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
286 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
287 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
290 /* SuSE extensions */
302 n = *name == '$' ? name + 1 : name;
304 for (i = 0; i < ELEMENTSOF(table); i += 2) {
306 if (!streq(table[i], n))
312 if (!(r = strdup(table[i+1])))
318 /* If we don't know this name, fallback heuristics to figure
319 * out whether something is a target or an service alias. */
322 /* Facilities starting with $ are most likely targets */
323 r = unit_name_build(n, NULL, ".target");
324 else if (filename && streq(name, filename))
325 /* Names equalling the file name of the services are redundant */
328 /* Everything else we assume to be normal service names */
329 r = sysv_translate_name(n);
342 static int sysv_fix_order(Service *s) {
348 if (s->sysv_start_priority < 0)
351 /* For each pair of services where at least one lacks a LSB
352 * header, we use the start priority value to order things. */
354 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
357 bool special_s, special_t;
359 t = (Service*) other;
364 if (t->meta.load_state != UNIT_LOADED)
367 if (t->sysv_start_priority < 0)
370 /* If both units have modern headers we don't care
371 * about the priorities */
372 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
373 (t->meta.fragment_path || t->sysv_has_lsb))
376 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
377 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
379 if (special_t && !special_s)
381 else if (special_s && !special_t)
383 else if (t->sysv_start_priority < s->sysv_start_priority)
385 else if (t->sysv_start_priority > s->sysv_start_priority)
390 /* FIXME: Maybe we should compare the name here lexicographically? */
392 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
399 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
402 if (!(c = new0(ExecCommand, 1)))
405 if (!(c->path = strdup(path))) {
410 if (!(c->argv = strv_new(path, arg1, NULL))) {
419 static int sysv_exec_commands(Service *s) {
423 assert(s->sysv_path);
425 if (!(c = exec_command_new(s->sysv_path, "start")))
427 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
429 if (!(c = exec_command_new(s->sysv_path, "stop")))
431 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
433 if (!(c = exec_command_new(s->sysv_path, "reload")))
435 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
440 static int service_load_sysv_path(Service *s, const char *path) {
451 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
458 if (!(f = fopen(path, "re"))) {
459 r = errno == ENOENT ? 0 : -errno;
464 if (!(s->sysv_path = strdup(path))) {
470 char l[LINE_MAX], *t;
472 if (!fgets(l, sizeof(l), f)) {
477 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
487 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
489 s->sysv_has_lsb = true;
493 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
499 t += strspn(t, WHITESPACE);
501 if (state == NORMAL) {
503 /* Try to parse Red Hat style chkconfig headers */
505 if (startswith_no_case(t, "chkconfig:")) {
507 char runlevels[16], *k;
511 if (sscanf(t+10, "%15s %i %*i",
513 &start_priority) != 2) {
515 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
519 /* A start priority gathered from the
520 * symlink farms is preferred over the
521 * data from the LSB header. */
522 if (start_priority < 0 || start_priority > 99)
523 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
524 else if (s->sysv_start_priority < 0)
525 s->sysv_start_priority = start_priority;
527 char_array_0(runlevels);
528 k = delete_chars(runlevels, WHITESPACE "-");
533 if (!(d = strdup(k))) {
538 free(s->sysv_runlevels);
539 s->sysv_runlevels = d;
542 } else if (startswith_no_case(t, "description:")) {
544 size_t k = strlen(t);
548 if (t[k-1] == '\\') {
553 if ((j = strstrip(t+12)) && *j) {
554 if (!(d = strdup(j))) {
561 free(chkconfig_description);
562 chkconfig_description = d;
564 } else if (startswith_no_case(t, "pidfile:")) {
571 if (!path_is_absolute(fn)) {
572 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
576 if (!(fn = strdup(fn))) {
585 } else if (state == DESCRIPTION) {
587 /* Try to parse Red Hat style description
590 size_t k = strlen(t);
598 if ((j = strstrip(t)) && *j) {
601 if (chkconfig_description)
602 asprintf(&d, "%s %s", chkconfig_description, j);
611 free(chkconfig_description);
612 chkconfig_description = d;
615 } else if (state == LSB || state == LSB_DESCRIPTION) {
617 if (startswith_no_case(t, "Provides:")) {
623 FOREACH_WORD_QUOTED(w, z, t+9, i) {
626 if (!(n = strndup(w, z))) {
631 r = sysv_translate_facility(n, file_name_from_path(path), &m);
640 if (unit_name_to_type(m) == UNIT_SERVICE)
641 r = unit_add_name(u, m);
643 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
645 if (s->sysv_enabled) {
648 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
654 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
659 } else if (startswith_no_case(t, "Required-Start:") ||
660 startswith_no_case(t, "Should-Start:") ||
661 startswith_no_case(t, "X-Start-Before:") ||
662 startswith_no_case(t, "X-Start-After:")) {
668 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
671 if (!(n = strndup(w, z))) {
676 r = sysv_translate_facility(n, file_name_from_path(path), &m);
685 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
688 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
692 } else if (startswith_no_case(t, "Default-Start:")) {
697 k = delete_chars(t+14, WHITESPACE "-");
700 if (!(d = strdup(k))) {
705 free(s->sysv_runlevels);
706 s->sysv_runlevels = d;
709 } else if (startswith_no_case(t, "Description:")) {
712 state = LSB_DESCRIPTION;
714 if ((j = strstrip(t+12)) && *j) {
715 if (!(d = strdup(j))) {
722 free(long_description);
723 long_description = d;
725 } else if (startswith_no_case(t, "Short-Description:")) {
730 if ((j = strstrip(t+18)) && *j) {
731 if (!(d = strdup(j))) {
738 free(short_description);
739 short_description = d;
741 } else if (startswith_no_case(t, "X-Interactive:")) {
744 if ((b = parse_boolean(strstrip(t+14))) < 0) {
745 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
750 s->exec_context.std_input = EXEC_INPUT_TTY;
752 s->exec_context.std_input = EXEC_INPUT_NULL;
754 } else if (state == LSB_DESCRIPTION) {
756 if (startswith(l, "#\t") || startswith(l, "# ")) {
759 if ((j = strstrip(t)) && *j) {
762 if (long_description)
763 asprintf(&d, "%s %s", long_description, t);
772 free(long_description);
773 long_description = d;
782 if ((r = sysv_exec_commands(s)) < 0)
785 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
786 /* If there a runlevels configured for this service
787 * but none of the standard ones, then we assume this
788 * is some special kind of service (which might be
789 * needed for early boot) and don't create any links
792 s->meta.default_dependencies = false;
794 /* Don't timeout special services during boot (like fsck) */
797 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
799 /* Special setting for all SysV services */
800 s->type = SERVICE_FORKING;
801 s->remain_after_exit = true;
802 s->restart = SERVICE_RESTART_NO;
803 s->exec_context.std_output =
804 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
805 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
806 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
808 /* We use the long description only if
809 * no short description is set. */
811 if (short_description)
812 description = short_description;
813 else if (chkconfig_description)
814 description = chkconfig_description;
815 else if (long_description)
816 description = long_description;
823 if (!(d = strappend("LSB: ", description))) {
828 u->meta.description = d;
831 u->meta.load_state = UNIT_LOADED;
839 free(short_description);
840 free(long_description);
841 free(chkconfig_description);
846 static int service_load_sysv_name(Service *s, const char *name) {
852 /* For SysV services we strip the boot. or .sh
853 * prefixes/suffixes. */
854 if (startswith(name, "boot.") ||
855 endswith(name, ".sh.service"))
858 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
862 if (asprintf(&path, "%s/%s", *p, name) < 0)
865 assert(endswith(path, ".service"));
866 path[strlen(path)-8] = 0;
868 r = service_load_sysv_path(s, path);
870 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
871 /* Try Debian style xxx.sh source'able init scripts */
873 r = service_load_sysv_path(s, path);
878 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
879 /* Try SUSE style boot.xxx init scripts */
881 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
884 path[strlen(path)-8] = 0;
885 r = service_load_sysv_path(s, path);
892 if ((s->meta.load_state != UNIT_STUB))
899 static int service_load_sysv(Service *s) {
906 /* Load service data from SysV init scripts, preferably with
909 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
912 if ((t = s->meta.id))
913 if ((r = service_load_sysv_name(s, t)) < 0)
916 if (s->meta.load_state == UNIT_STUB)
917 SET_FOREACH(t, s->meta.names, i) {
921 if ((r = service_load_sysv_name(s, t)) < 0)
924 if (s->meta.load_state != UNIT_STUB)
932 static int service_verify(Service *s) {
935 if (s->meta.load_state != UNIT_LOADED)
938 if (!s->exec_command[SERVICE_EXEC_START]) {
939 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
943 if (s->type != SERVICE_ONESHOT &&
944 s->exec_command[SERVICE_EXEC_START]->command_next) {
945 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
949 if (s->type == SERVICE_DBUS && !s->bus_name) {
950 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
954 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
955 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
962 static int service_add_default_dependencies(Service *s) {
967 /* Add a number of automatic dependencies useful for the
968 * majority of services. */
970 /* First, pull in base system */
971 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
973 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
976 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
978 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
982 /* Second, activate normal shutdown */
983 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
986 static int service_load(Unit *u) {
988 Service *s = SERVICE(u);
992 /* Load a .service file */
993 if ((r = unit_load_fragment(u)) < 0)
996 #ifdef HAVE_SYSV_COMPAT
997 /* Load a classic init script as a fallback, if we couldn't find anything */
998 if (u->meta.load_state == UNIT_STUB)
999 if ((r = service_load_sysv(s)) < 0)
1003 /* Still nothing found? Then let's give up */
1004 if (u->meta.load_state == UNIT_STUB)
1007 /* We were able to load something, then let's add in the
1008 * dropin directories. */
1009 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1012 /* This is a new unit? Then let's add in some extras */
1013 if (u->meta.load_state == UNIT_LOADED) {
1014 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1017 if ((r = unit_add_default_cgroup(u)) < 0)
1020 #ifdef HAVE_SYSV_COMPAT
1021 if ((r = sysv_fix_order(s)) < 0)
1026 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1029 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1030 s->notify_access = NOTIFY_MAIN;
1032 if (s->type == SERVICE_DBUS || s->bus_name)
1033 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1036 if (s->meta.default_dependencies)
1037 if ((r = service_add_default_dependencies(s)) < 0)
1041 return service_verify(s);
1044 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1046 ServiceExecCommand c;
1047 Service *s = SERVICE(u);
1048 const char *prefix2;
1053 p2 = strappend(prefix, "\t");
1054 prefix2 = p2 ? p2 : prefix;
1057 "%sService State: %s\n"
1058 "%sPermissionsStartOnly: %s\n"
1059 "%sRootDirectoryStartOnly: %s\n"
1060 "%sRemainAfterExit: %s\n"
1063 "%sNotifyAccess: %s\n",
1064 prefix, service_state_to_string(s->state),
1065 prefix, yes_no(s->permissions_start_only),
1066 prefix, yes_no(s->root_directory_start_only),
1067 prefix, yes_no(s->remain_after_exit),
1068 prefix, service_type_to_string(s->type),
1069 prefix, service_restart_to_string(s->restart),
1070 prefix, notify_access_to_string(s->notify_access));
1072 if (s->control_pid > 0)
1074 "%sControl PID: %lu\n",
1075 prefix, (unsigned long) s->control_pid);
1077 if (s->main_pid > 0)
1079 "%sMain PID: %lu\n",
1080 prefix, (unsigned long) s->main_pid);
1085 prefix, s->pid_file);
1090 "%sBus Name Good: %s\n",
1091 prefix, s->bus_name,
1092 prefix, yes_no(s->bus_name_good));
1094 exec_context_dump(&s->exec_context, f, prefix);
1096 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1098 if (!s->exec_command[c])
1101 fprintf(f, "%s-> %s:\n",
1102 prefix, service_exec_command_to_string(c));
1104 exec_command_dump_list(s->exec_command[c], f, prefix2);
1107 #ifdef HAVE_SYSV_COMPAT
1110 "%sSysV Init Script Path: %s\n"
1111 "%sSysV Init Script has LSB Header: %s\n",
1112 prefix, s->sysv_path,
1113 prefix, yes_no(s->sysv_has_lsb));
1115 if (s->sysv_start_priority >= 0)
1117 "%sSysVStartPriority: %i\n"
1118 "%sSysVEnabled: %s\n",
1119 prefix, s->sysv_start_priority,
1120 prefix, yes_no(s->sysv_enabled));
1122 if (s->sysv_runlevels)
1123 fprintf(f, "%sSysVRunLevels: %s\n",
1124 prefix, s->sysv_runlevels);
1128 fprintf(f, "%sStatus Text: %s\n",
1129 prefix, s->status_text);
1134 static int service_load_pid_file(Service *s) {
1141 if (s->main_pid_known)
1144 assert(s->main_pid <= 0);
1149 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1152 r = parse_pid(k, &pid);
1158 if (kill(pid, 0) < 0 && errno != EPERM) {
1159 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1160 (unsigned long) pid, s->pid_file);
1164 if ((r = service_set_main_pid(s, pid)) < 0)
1167 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1168 /* FIXME: we need to do something here */
1174 static int service_get_sockets(Service *s, Set **_set) {
1183 if (s->socket_fd >= 0)
1186 if (!set_isempty(s->configured_sockets))
1189 /* Collects all Socket objects that belong to this
1190 * service. Note that a service might have multiple sockets
1191 * via multiple names. */
1193 if (!(set = set_new(NULL, NULL)))
1196 SET_FOREACH(t, s->meta.names, i) {
1200 /* Look for all socket objects that go by any of our
1201 * units and collect their fds */
1203 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1208 p = manager_get_unit(s->meta.manager, k);
1214 if ((r = set_put(set, p)) < 0)
1226 static int service_notify_sockets_dead(Service *s) {
1228 Set *set, *free_set = NULL;
1234 /* Notifies all our sockets when we die */
1236 if (s->socket_fd >= 0)
1239 if (!set_isempty(s->configured_sockets))
1240 set = s->configured_sockets;
1242 if ((r = service_get_sockets(s, &free_set)) < 0)
1248 SET_FOREACH(sock, set, i)
1249 socket_notify_service_dead(sock);
1256 static void service_set_state(Service *s, ServiceState state) {
1257 ServiceState old_state;
1260 old_state = s->state;
1263 if (state != SERVICE_START_PRE &&
1264 state != SERVICE_START &&
1265 state != SERVICE_START_POST &&
1266 state != SERVICE_RELOAD &&
1267 state != SERVICE_STOP &&
1268 state != SERVICE_STOP_SIGTERM &&
1269 state != SERVICE_STOP_SIGKILL &&
1270 state != SERVICE_STOP_POST &&
1271 state != SERVICE_FINAL_SIGTERM &&
1272 state != SERVICE_FINAL_SIGKILL &&
1273 state != SERVICE_AUTO_RESTART)
1274 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1276 if (state != SERVICE_START &&
1277 state != SERVICE_START_POST &&
1278 state != SERVICE_RUNNING &&
1279 state != SERVICE_RELOAD &&
1280 state != SERVICE_STOP &&
1281 state != SERVICE_STOP_SIGTERM &&
1282 state != SERVICE_STOP_SIGKILL)
1283 service_unwatch_main_pid(s);
1285 if (state != SERVICE_START_PRE &&
1286 state != SERVICE_START &&
1287 state != SERVICE_START_POST &&
1288 state != SERVICE_RELOAD &&
1289 state != SERVICE_STOP &&
1290 state != SERVICE_STOP_SIGTERM &&
1291 state != SERVICE_STOP_SIGKILL &&
1292 state != SERVICE_STOP_POST &&
1293 state != SERVICE_FINAL_SIGTERM &&
1294 state != SERVICE_FINAL_SIGKILL) {
1295 service_unwatch_control_pid(s);
1296 s->control_command = NULL;
1297 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1300 if (state == SERVICE_DEAD ||
1301 state == SERVICE_STOP ||
1302 state == SERVICE_STOP_SIGTERM ||
1303 state == SERVICE_STOP_SIGKILL ||
1304 state == SERVICE_STOP_POST ||
1305 state == SERVICE_FINAL_SIGTERM ||
1306 state == SERVICE_FINAL_SIGKILL ||
1307 state == SERVICE_FAILED ||
1308 state == SERVICE_AUTO_RESTART)
1309 service_notify_sockets_dead(s);
1311 if (state != SERVICE_START_PRE &&
1312 state != SERVICE_START &&
1313 state != SERVICE_START_POST &&
1314 state != SERVICE_RUNNING &&
1315 state != SERVICE_RELOAD &&
1316 state != SERVICE_STOP &&
1317 state != SERVICE_STOP_SIGTERM &&
1318 state != SERVICE_STOP_SIGKILL &&
1319 state != SERVICE_STOP_POST &&
1320 state != SERVICE_FINAL_SIGTERM &&
1321 state != SERVICE_FINAL_SIGKILL &&
1322 !(state == SERVICE_DEAD && s->meta.job)) {
1323 service_close_socket_fd(s);
1324 service_connection_unref(s);
1327 /* For the inactive states unit_notify() will trim the cgroup,
1328 * but for exit we have to do that ourselves... */
1329 if (state == SERVICE_EXITED)
1330 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1332 if (old_state != state)
1333 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
1335 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
1338 static int service_coldplug(Unit *u) {
1339 Service *s = SERVICE(u);
1343 assert(s->state == SERVICE_DEAD);
1345 if (s->deserialized_state != s->state) {
1347 if (s->deserialized_state == SERVICE_START_PRE ||
1348 s->deserialized_state == SERVICE_START ||
1349 s->deserialized_state == SERVICE_START_POST ||
1350 s->deserialized_state == SERVICE_RELOAD ||
1351 s->deserialized_state == SERVICE_STOP ||
1352 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1353 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1354 s->deserialized_state == SERVICE_STOP_POST ||
1355 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1356 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1357 s->deserialized_state == SERVICE_AUTO_RESTART) {
1359 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1362 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1364 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1369 if ((s->deserialized_state == SERVICE_START &&
1370 (s->type == SERVICE_FORKING ||
1371 s->type == SERVICE_DBUS ||
1372 s->type == SERVICE_ONESHOT ||
1373 s->type == SERVICE_NOTIFY)) ||
1374 s->deserialized_state == SERVICE_START_POST ||
1375 s->deserialized_state == SERVICE_RUNNING ||
1376 s->deserialized_state == SERVICE_RELOAD ||
1377 s->deserialized_state == SERVICE_STOP ||
1378 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1379 s->deserialized_state == SERVICE_STOP_SIGKILL)
1380 if (s->main_pid > 0)
1381 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1384 if (s->deserialized_state == SERVICE_START_PRE ||
1385 s->deserialized_state == SERVICE_START ||
1386 s->deserialized_state == SERVICE_START_POST ||
1387 s->deserialized_state == SERVICE_RELOAD ||
1388 s->deserialized_state == SERVICE_STOP ||
1389 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1390 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1391 s->deserialized_state == SERVICE_STOP_POST ||
1392 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1393 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1394 if (s->control_pid > 0)
1395 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1398 service_set_state(s, s->deserialized_state);
1404 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1408 unsigned rn_fds = 0;
1409 Set *set, *free_set = NULL;
1416 if (s->socket_fd >= 0)
1419 if (!set_isempty(s->configured_sockets))
1420 set = s->configured_sockets;
1422 if ((r = service_get_sockets(s, &free_set)) < 0)
1428 SET_FOREACH(sock, set, i) {
1432 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1444 if (!(t = new(int, rn_fds+cn_fds))) {
1450 memcpy(t, rfds, rn_fds);
1451 memcpy(t+rn_fds, cfds, cn_fds);
1456 rn_fds = rn_fds+cn_fds;
1474 static int service_spawn(
1479 bool apply_permissions,
1481 bool apply_tty_stdin,
1482 bool set_notify_socket,
1487 int *fds = NULL, *fdsbuf = NULL;
1488 unsigned n_fds = 0, n_env = 0;
1489 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1496 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1497 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1498 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1500 if (s->socket_fd >= 0) {
1501 fds = &s->socket_fd;
1504 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1511 if (timeout && s->timeout_usec) {
1512 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1515 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1517 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1522 if (!(our_env = new0(char*, 3))) {
1527 if (set_notify_socket)
1528 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
1533 if (s->main_pid > 0)
1534 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1539 if (!(final_env = strv_env_merge(2,
1540 s->meta.manager->environment,
1555 s->meta.manager->confirm_spawn,
1556 s->meta.cgroup_bondings,
1563 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1564 /* FIXME: we need to do something here */
1570 strv_free(final_env);
1580 strv_free(final_env);
1583 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1588 static int main_pid_good(Service *s) {
1591 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1594 /* If we know the pid file, then lets just check if it is
1596 if (s->main_pid_known)
1597 return s->main_pid > 0;
1599 /* We don't know the pid */
1603 static int control_pid_good(Service *s) {
1606 return s->control_pid > 0;
1609 static int cgroup_good(Service *s) {
1614 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
1620 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1627 if (allow_restart &&
1628 !s->forbid_restart &&
1629 (s->restart == SERVICE_RESTART_ALWAYS ||
1630 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1632 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1635 service_set_state(s, SERVICE_AUTO_RESTART);
1637 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
1639 s->forbid_restart = false;
1644 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
1645 service_enter_dead(s, false, false);
1648 static void service_enter_signal(Service *s, ServiceState state, bool success);
1650 static void service_enter_stop_post(Service *s, bool success) {
1657 service_unwatch_control_pid(s);
1659 s->control_command_id = SERVICE_EXEC_STOP_POST;
1660 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1661 if ((r = service_spawn(s,
1665 !s->permissions_start_only,
1666 !s->root_directory_start_only,
1669 &s->control_pid)) < 0)
1673 service_set_state(s, SERVICE_STOP_POST);
1675 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1680 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
1681 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1684 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1686 Set *pid_set = NULL;
1687 bool wait_for_exit = false;
1694 if (s->exec_context.kill_mode != KILL_NONE) {
1695 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1697 if (s->main_pid > 0) {
1698 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1700 s->main_pid, sig) < 0 && errno != ESRCH)
1702 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1704 wait_for_exit = true;
1707 if (s->control_pid > 0) {
1708 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1710 s->control_pid, sig) < 0 && errno != ESRCH)
1712 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1714 wait_for_exit = true;
1717 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1719 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1724 /* Exclude the main/control pids from being killed via the cgroup */
1725 if (s->main_pid > 0)
1726 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1729 if (s->control_pid > 0)
1730 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1733 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1734 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1735 log_warning("Failed to kill control group: %s", strerror(-r));
1737 wait_for_exit = true;
1743 if (wait_for_exit) {
1744 if (s->timeout_usec > 0)
1745 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1748 service_set_state(s, state);
1749 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1750 service_enter_stop_post(s, true);
1752 service_enter_dead(s, true, true);
1757 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
1759 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1760 service_enter_stop_post(s, false);
1762 service_enter_dead(s, false, true);
1768 static void service_enter_stop(Service *s, bool success) {
1776 service_unwatch_control_pid(s);
1778 s->control_command_id = SERVICE_EXEC_STOP;
1779 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1780 if ((r = service_spawn(s,
1784 !s->permissions_start_only,
1785 !s->root_directory_start_only,
1788 &s->control_pid)) < 0)
1791 service_set_state(s, SERVICE_STOP);
1793 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1798 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
1799 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1802 static void service_enter_running(Service *s, bool success) {
1803 int main_pid_ok, cgroup_ok;
1809 main_pid_ok = main_pid_good(s);
1810 cgroup_ok = cgroup_good(s);
1812 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
1813 (s->bus_name_good || s->type != SERVICE_DBUS))
1814 service_set_state(s, SERVICE_RUNNING);
1815 else if (s->remain_after_exit)
1816 service_set_state(s, SERVICE_EXITED);
1818 service_enter_stop(s, true);
1821 static void service_enter_start_post(Service *s) {
1825 service_unwatch_control_pid(s);
1827 s->control_command_id = SERVICE_EXEC_START_POST;
1828 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
1829 if ((r = service_spawn(s,
1833 !s->permissions_start_only,
1834 !s->root_directory_start_only,
1837 &s->control_pid)) < 0)
1840 service_set_state(s, SERVICE_START_POST);
1842 service_enter_running(s, true);
1847 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
1848 service_enter_stop(s, false);
1851 static void service_enter_start(Service *s) {
1857 assert(s->exec_command[SERVICE_EXEC_START]);
1858 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
1860 if (s->type == SERVICE_FORKING)
1861 service_unwatch_control_pid(s);
1863 service_unwatch_main_pid(s);
1865 s->control_command_id = SERVICE_EXEC_START;
1866 s->control_command = s->exec_command[SERVICE_EXEC_START];
1868 if ((r = service_spawn(s,
1870 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
1875 s->notify_access != NOTIFY_NONE,
1879 if (s->type == SERVICE_SIMPLE) {
1880 /* For simple services we immediately start
1881 * the START_POST binaries. */
1883 service_set_main_pid(s, pid);
1884 service_enter_start_post(s);
1886 } else if (s->type == SERVICE_FORKING) {
1888 /* For forking services we wait until the start
1889 * process exited. */
1891 s->control_pid = pid;
1892 service_set_state(s, SERVICE_START);
1894 } else if (s->type == SERVICE_ONESHOT ||
1895 s->type == SERVICE_DBUS ||
1896 s->type == SERVICE_NOTIFY) {
1898 /* For oneshot services we wait until the start
1899 * process exited, too, but it is our main process. */
1901 /* For D-Bus services we know the main pid right away,
1902 * but wait for the bus name to appear on the
1903 * bus. Notify services are similar. */
1905 service_set_main_pid(s, pid);
1906 service_set_state(s, SERVICE_START);
1908 assert_not_reached("Unknown service type");
1913 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
1914 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1917 static void service_enter_start_pre(Service *s) {
1922 service_unwatch_control_pid(s);
1924 s->control_command_id = SERVICE_EXEC_START_PRE;
1925 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
1926 if ((r = service_spawn(s,
1930 !s->permissions_start_only,
1931 !s->root_directory_start_only,
1934 &s->control_pid)) < 0)
1937 service_set_state(s, SERVICE_START_PRE);
1939 service_enter_start(s);
1944 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
1945 service_enter_dead(s, false, true);
1948 static void service_enter_restart(Service *s) {
1953 dbus_error_init(&error);
1955 service_enter_dead(s, true, false);
1957 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
1960 log_debug("%s scheduled restart job.", s->meta.id);
1964 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
1965 service_enter_dead(s, false, false);
1967 dbus_error_free(&error);
1970 static void service_enter_reload(Service *s) {
1975 service_unwatch_control_pid(s);
1977 s->control_command_id = SERVICE_EXEC_RELOAD;
1978 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
1979 if ((r = service_spawn(s,
1983 !s->permissions_start_only,
1984 !s->root_directory_start_only,
1987 &s->control_pid)) < 0)
1990 service_set_state(s, SERVICE_RELOAD);
1992 service_enter_running(s, true);
1997 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
1998 service_enter_stop(s, false);
2001 static void service_run_next_control(Service *s, bool success) {
2005 assert(s->control_command);
2006 assert(s->control_command->command_next);
2011 assert(s->control_command_id != SERVICE_EXEC_START);
2013 s->control_command = s->control_command->command_next;
2014 service_unwatch_control_pid(s);
2016 if ((r = service_spawn(s,
2020 !s->permissions_start_only,
2021 !s->root_directory_start_only,
2022 s->control_command_id == SERVICE_EXEC_START_PRE ||
2023 s->control_command_id == SERVICE_EXEC_STOP_POST,
2025 &s->control_pid)) < 0)
2031 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
2033 if (s->state == SERVICE_START_PRE)
2034 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2035 else if (s->state == SERVICE_STOP)
2036 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2037 else if (s->state == SERVICE_STOP_POST)
2038 service_enter_dead(s, false, true);
2040 service_enter_stop(s, false);
2043 static void service_run_next_main(Service *s, bool success) {
2048 assert(s->control_command);
2049 assert(s->control_command->command_next);
2054 assert(s->control_command_id == SERVICE_EXEC_START);
2055 assert(s->type == SERVICE_ONESHOT);
2057 s->control_command = s->control_command->command_next;
2058 service_unwatch_main_pid(s);
2060 if ((r = service_spawn(s,
2067 s->notify_access != NOTIFY_NONE,
2071 service_set_main_pid(s, pid);
2076 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2077 service_enter_stop(s, false);
2080 static int service_start(Unit *u) {
2081 Service *s = SERVICE(u);
2085 /* We cannot fulfill this request right now, try again later
2087 if (s->state == SERVICE_STOP ||
2088 s->state == SERVICE_STOP_SIGTERM ||
2089 s->state == SERVICE_STOP_SIGKILL ||
2090 s->state == SERVICE_STOP_POST ||
2091 s->state == SERVICE_FINAL_SIGTERM ||
2092 s->state == SERVICE_FINAL_SIGKILL)
2095 /* Already on it! */
2096 if (s->state == SERVICE_START_PRE ||
2097 s->state == SERVICE_START ||
2098 s->state == SERVICE_START_POST)
2101 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2103 /* Make sure we don't enter a busy loop of some kind. */
2104 if (!ratelimit_test(&s->ratelimit)) {
2105 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
2110 s->main_pid_known = false;
2111 s->forbid_restart = false;
2113 service_enter_start_pre(s);
2117 static int service_stop(Unit *u) {
2118 Service *s = SERVICE(u);
2122 /* This is a user request, so don't do restarts on this
2124 s->forbid_restart = true;
2127 if (s->state == SERVICE_STOP ||
2128 s->state == SERVICE_STOP_SIGTERM ||
2129 s->state == SERVICE_STOP_SIGKILL ||
2130 s->state == SERVICE_STOP_POST ||
2131 s->state == SERVICE_FINAL_SIGTERM ||
2132 s->state == SERVICE_FINAL_SIGKILL)
2135 /* Don't allow a restart */
2136 if (s->state == SERVICE_AUTO_RESTART) {
2137 service_set_state(s, SERVICE_DEAD);
2141 /* If there's already something running we go directly into
2143 if (s->state == SERVICE_START_PRE ||
2144 s->state == SERVICE_START ||
2145 s->state == SERVICE_START_POST ||
2146 s->state == SERVICE_RELOAD) {
2147 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2151 assert(s->state == SERVICE_RUNNING ||
2152 s->state == SERVICE_EXITED);
2154 service_enter_stop(s, true);
2158 static int service_reload(Unit *u) {
2159 Service *s = SERVICE(u);
2163 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2165 service_enter_reload(s);
2169 static bool service_can_reload(Unit *u) {
2170 Service *s = SERVICE(u);
2174 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2177 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2178 Service *s = SERVICE(u);
2184 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2185 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2187 if (s->control_pid > 0)
2188 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2190 if (s->main_pid_known && s->main_pid > 0)
2191 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2193 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2196 unit_serialize_item(u, f, "status-text", s->status_text);
2198 /* There's a minor uncleanliness here: if there are multiple
2199 * commands attached here, we will start from the first one
2201 if (s->control_command_id >= 0)
2202 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2204 if (s->socket_fd >= 0) {
2207 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2210 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2213 if (s->main_exec_status.pid > 0) {
2214 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2216 if (s->main_exec_status.start_timestamp.realtime > 0) {
2217 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
2218 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2220 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2221 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2224 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2225 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2226 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2227 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2228 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2230 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2231 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2238 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2239 Service *s = SERVICE(u);
2246 if (streq(key, "state")) {
2249 if ((state = service_state_from_string(value)) < 0)
2250 log_debug("Failed to parse state value %s", value);
2252 s->deserialized_state = state;
2253 } else if (streq(key, "failure")) {
2256 if ((b = parse_boolean(value)) < 0)
2257 log_debug("Failed to parse failure value %s", value);
2259 s->failure = b || s->failure;
2260 } else if (streq(key, "control-pid")) {
2263 if (parse_pid(value, &pid) < 0)
2264 log_debug("Failed to parse control-pid value %s", value);
2266 s->control_pid = pid;
2267 } else if (streq(key, "main-pid")) {
2270 if (parse_pid(value, &pid) < 0)
2271 log_debug("Failed to parse main-pid value %s", value);
2273 service_set_main_pid(s, (pid_t) pid);
2274 } else if (streq(key, "main-pid-known")) {
2277 if ((b = parse_boolean(value)) < 0)
2278 log_debug("Failed to parse main-pid-known value %s", value);
2280 s->main_pid_known = b;
2281 } else if (streq(key, "status-text")) {
2284 if ((t = strdup(value))) {
2285 free(s->status_text);
2289 } else if (streq(key, "control-command")) {
2290 ServiceExecCommand id;
2292 if ((id = service_exec_command_from_string(value)) < 0)
2293 log_debug("Failed to parse exec-command value %s", value);
2295 s->control_command_id = id;
2296 s->control_command = s->exec_command[id];
2298 } else if (streq(key, "socket-fd")) {
2301 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2302 log_debug("Failed to parse socket-fd value %s", value);
2305 if (s->socket_fd >= 0)
2306 close_nointr_nofail(s->socket_fd);
2307 s->socket_fd = fdset_remove(fds, fd);
2309 } else if (streq(key, "main-exec-status-pid")) {
2312 if (parse_pid(value, &pid) < 0)
2313 log_debug("Failed to parse main-exec-status-pid value %s", value);
2315 s->main_exec_status.pid = pid;
2316 } else if (streq(key, "main-exec-status-code")) {
2319 if (safe_atoi(value, &i) < 0)
2320 log_debug("Failed to parse main-exec-status-code value %s", value);
2322 s->main_exec_status.code = i;
2323 } else if (streq(key, "main-exec-status-status")) {
2326 if (safe_atoi(value, &i) < 0)
2327 log_debug("Failed to parse main-exec-status-status value %s", value);
2329 s->main_exec_status.status = i;
2330 } else if (streq(key, "main-exec-status-start-realtime")) {
2333 if (safe_atou64(value, &k) < 0)
2334 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2336 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2337 } else if (streq(key, "main-exec-status-start-monotonic")) {
2340 if (safe_atou64(value, &k) < 0)
2341 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2343 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2344 } else if (streq(key, "main-exec-status-exit-realtime")) {
2347 if (safe_atou64(value, &k) < 0)
2348 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2350 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2351 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2354 if (safe_atou64(value, &k) < 0)
2355 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2357 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
2359 log_debug("Unknown serialization key '%s'", key);
2364 static UnitActiveState service_active_state(Unit *u) {
2367 return state_translation_table[SERVICE(u)->state];
2370 static const char *service_sub_state_to_string(Unit *u) {
2373 return service_state_to_string(SERVICE(u)->state);
2376 #ifdef HAVE_SYSV_COMPAT
2377 static bool service_check_gc(Unit *u) {
2378 Service *s = SERVICE(u);
2382 return !!s->sysv_path;
2386 static bool service_check_snapshot(Unit *u) {
2387 Service *s = SERVICE(u);
2391 return !s->got_socket_fd;
2394 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2395 Service *s = SERVICE(u);
2401 if (!s->meta.fragment_path)
2402 success = is_clean_exit_lsb(code, status);
2404 success = is_clean_exit(code, status);
2406 if (s->main_pid == pid) {
2409 exec_status_exit(&s->main_exec_status, pid, code, status);
2411 if (s->type != SERVICE_FORKING && s->control_command) {
2412 s->control_command->exec_status = s->main_exec_status;
2414 if (s->control_command->ignore)
2418 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2419 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
2420 s->failure = s->failure || !success;
2422 if (s->control_command &&
2423 s->control_command->command_next &&
2426 /* There is another command to *
2427 * execute, so let's do that. */
2429 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2430 service_run_next_main(s, success);
2434 /* The service exited, so the service is officially
2437 s->control_command = NULL;
2438 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2442 case SERVICE_START_POST:
2443 case SERVICE_RELOAD:
2445 /* Need to wait until the operation is
2450 if (s->type == SERVICE_ONESHOT) {
2451 /* This was our main goal, so let's go on */
2453 service_enter_start_post(s);
2455 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2458 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2463 case SERVICE_RUNNING:
2464 service_enter_running(s, success);
2467 case SERVICE_STOP_SIGTERM:
2468 case SERVICE_STOP_SIGKILL:
2470 if (!control_pid_good(s))
2471 service_enter_stop_post(s, success);
2473 /* If there is still a control process, wait for that first */
2477 assert_not_reached("Uh, main process died at wrong time.");
2481 } else if (s->control_pid == pid) {
2485 if (s->control_command) {
2486 exec_status_exit(&s->control_command->exec_status, pid, code, status);
2488 if (s->control_command->ignore)
2492 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2493 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2494 s->failure = s->failure || !success;
2496 if (s->control_command &&
2497 s->control_command->command_next &&
2500 /* There is another command to *
2501 * execute, so let's do that. */
2503 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2504 service_run_next_control(s, success);
2507 /* No further commands for this step, so let's
2508 * figure out what to do next */
2510 s->control_command = NULL;
2511 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2513 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2517 case SERVICE_START_PRE:
2519 service_enter_start(s);
2521 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2525 assert(s->type == SERVICE_FORKING);
2527 /* Let's try to load the pid
2528 * file here if we can. We
2529 * ignore the return value,
2530 * since the PID file might
2531 * actually be created by a
2532 * START_POST script */
2536 service_load_pid_file(s);
2538 service_enter_start_post(s);
2540 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2544 case SERVICE_START_POST:
2545 if (success && s->pid_file && !s->main_pid_known) {
2548 /* Hmm, let's see if we can
2549 * load the pid now after the
2550 * start-post scripts got
2553 if ((r = service_load_pid_file(s)) < 0)
2554 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
2559 case SERVICE_RELOAD:
2561 service_enter_running(s, true);
2563 service_enter_stop(s, false);
2568 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2571 case SERVICE_STOP_SIGTERM:
2572 case SERVICE_STOP_SIGKILL:
2573 if (main_pid_good(s) <= 0)
2574 service_enter_stop_post(s, success);
2576 /* If there is still a service
2577 * process around, wait until
2578 * that one quit, too */
2581 case SERVICE_STOP_POST:
2582 case SERVICE_FINAL_SIGTERM:
2583 case SERVICE_FINAL_SIGKILL:
2584 service_enter_dead(s, success, true);
2588 assert_not_reached("Uh, control process died at wrong time.");
2593 /* Notify clients about changed exit status */
2594 unit_add_to_dbus_queue(u);
2597 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2598 Service *s = SERVICE(u);
2601 assert(elapsed == 1);
2603 assert(w == &s->timer_watch);
2607 case SERVICE_START_PRE:
2609 log_warning("%s operation timed out. Terminating.", u->meta.id);
2610 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2613 case SERVICE_START_POST:
2614 case SERVICE_RELOAD:
2615 log_warning("%s operation timed out. Stopping.", u->meta.id);
2616 service_enter_stop(s, false);
2620 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2621 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2624 case SERVICE_STOP_SIGTERM:
2625 log_warning("%s stopping timed out. Killing.", u->meta.id);
2626 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2629 case SERVICE_STOP_SIGKILL:
2630 /* Uh, wie sent a SIGKILL and it is still not gone?
2631 * Must be something we cannot kill, so let's just be
2632 * weirded out and continue */
2634 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2635 service_enter_stop_post(s, false);
2638 case SERVICE_STOP_POST:
2639 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2640 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2643 case SERVICE_FINAL_SIGTERM:
2644 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2645 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2648 case SERVICE_FINAL_SIGKILL:
2649 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
2650 service_enter_dead(s, false, true);
2653 case SERVICE_AUTO_RESTART:
2654 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
2655 service_enter_restart(s);
2659 assert_not_reached("Timeout at wrong time.");
2663 static void service_cgroup_notify_event(Unit *u) {
2664 Service *s = SERVICE(u);
2668 log_debug("%s: cgroup is empty", u->meta.id);
2672 /* Waiting for SIGCHLD is usually more interesting,
2673 * because it includes return codes/signals. Which is
2674 * why we ignore the cgroup events for most cases,
2675 * except when we don't know pid which to expect the
2678 case SERVICE_RUNNING:
2679 service_enter_running(s, true);
2682 case SERVICE_STOP_SIGTERM:
2683 case SERVICE_STOP_SIGKILL:
2684 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2685 service_enter_stop_post(s, true);
2689 case SERVICE_FINAL_SIGTERM:
2690 case SERVICE_FINAL_SIGKILL:
2691 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2692 service_enter_dead(s, true, true);
2701 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
2702 Service *s = SERVICE(u);
2707 if (s->notify_access == NOTIFY_NONE) {
2708 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2709 u->meta.id, (unsigned long) pid);
2713 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2714 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2715 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2719 log_debug("%s: Got message", u->meta.id);
2721 /* Interpret MAINPID= */
2722 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2723 (s->state == SERVICE_START ||
2724 s->state == SERVICE_START_POST ||
2725 s->state == SERVICE_RUNNING ||
2726 s->state == SERVICE_RELOAD)) {
2728 if (parse_pid(e + 8, &pid) < 0)
2729 log_warning("Failed to parse notification message %s", e);
2731 log_debug("%s: got %s", u->meta.id, e);
2732 service_set_main_pid(s, pid);
2736 /* Interpret READY= */
2737 if (s->type == SERVICE_NOTIFY &&
2738 s->state == SERVICE_START &&
2739 strv_find(tags, "READY=1")) {
2740 log_debug("%s: got READY=1", u->meta.id);
2742 service_enter_start_post(s);
2745 /* Interpret STATUS= */
2746 if ((e = strv_find_prefix(tags, "STATUS="))) {
2750 if (!(t = strdup(e+7))) {
2751 log_error("Failed to allocate string.");
2755 log_debug("%s: got %s", u->meta.id, e);
2757 free(s->status_text);
2760 free(s->status_text);
2761 s->status_text = NULL;
2766 /* Notify clients about changed status or main pid */
2767 unit_add_to_dbus_queue(u);
2770 #ifdef HAVE_SYSV_COMPAT
2771 static int service_enumerate(Manager *m) {
2775 char *path = NULL, *fpath = NULL, *name = NULL;
2776 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2781 Unit *previous = NULL;
2782 char *arch_daemons = NULL;
2783 char *arch_daemons_stripped = NULL;
2784 char **arch_daemons_split = NULL;
2790 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2791 "DAEMONS", &arch_daemons,
2795 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2797 } else if (arch_daemons) {
2798 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2799 arch_daemons_stripped = arch_daemons;
2801 arch_daemons_stripped++; /* strip start paren */
2803 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2805 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2810 STRV_FOREACH(p, arch_daemons_split) {
2815 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2818 if (!(name = sysv_translate_name(*p))) {
2823 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2824 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2828 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2832 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2835 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2841 zero(runlevel_services);
2843 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
2844 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2849 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2857 if (!(d = opendir(path))) {
2858 if (errno != ENOENT)
2859 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2864 while ((de = readdir(d))) {
2867 if (ignore_file(de->d_name))
2870 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2873 if (strlen(de->d_name) < 4)
2876 a = undecchar(de->d_name[1]);
2877 b = undecchar(de->d_name[2]);
2884 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2889 if (access(fpath, X_OK) < 0) {
2891 if (errno != ENOENT)
2892 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2898 if (!(name = sysv_translate_name(de->d_name + 3))) {
2903 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2904 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2908 if (de->d_name[0] == 'S') {
2910 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
2911 SERVICE(service)->sysv_start_priority =
2912 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
2914 SERVICE(service)->sysv_enabled = true;
2917 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
2920 if ((r = set_put(runlevel_services[i], service)) < 0)
2923 } else if (de->d_name[0] == 'K' &&
2924 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2925 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
2927 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
2930 if ((r = set_put(shutdown_services, service)) < 0)
2936 /* Now we loaded all stubs and are aware of the lowest
2937 start-up priority for all services, not let's actually load
2938 the services, this will also tell us which services are
2939 actually native now */
2940 manager_dispatch_load_queue(m);
2942 /* If this is a native service, rely on native ways to pull in
2943 * a service, don't pull it in via sysv rcN.d links. */
2944 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
2945 SET_FOREACH(service, runlevel_services[i], j) {
2946 service = unit_follow_merge(service);
2948 if (service->meta.fragment_path)
2951 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2955 /* We honour K links only for halt/reboot. For the normal
2956 * runlevels we assume the stop jobs will be implicitly added
2957 * by the core logic. Also, we don't really distuingish here
2958 * between the runlevels 0 and 6 and just add them to the
2959 * special shutdown target. On SUSE the boot.d/ runlevel is
2960 * also used for shutdown, so we add links for that too to the
2961 * shutdown target.*/
2962 SET_FOREACH(service, shutdown_services, j) {
2963 service = unit_follow_merge(service);
2965 if (service->meta.fragment_path)
2968 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2980 free(arch_daemons_split);
2983 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
2984 set_free(runlevel_services[i]);
2985 set_free(shutdown_services);
2994 static void service_bus_name_owner_change(
2997 const char *old_owner,
2998 const char *new_owner) {
3000 Service *s = SERVICE(u);
3005 assert(streq(s->bus_name, name));
3006 assert(old_owner || new_owner);
3008 if (old_owner && new_owner)
3009 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3011 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3013 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3015 s->bus_name_good = !!new_owner;
3017 if (s->type == SERVICE_DBUS) {
3019 /* service_enter_running() will figure out what to
3021 if (s->state == SERVICE_RUNNING)
3022 service_enter_running(s, true);
3023 else if (s->state == SERVICE_START && new_owner)
3024 service_enter_start_post(s);
3026 } else if (new_owner &&
3028 (s->state == SERVICE_START ||
3029 s->state == SERVICE_START_POST ||
3030 s->state == SERVICE_RUNNING ||
3031 s->state == SERVICE_RELOAD)) {
3033 /* Try to acquire PID from bus service */
3034 log_debug("Trying to acquire PID from D-Bus name...");
3036 bus_query_pid(u->meta.manager, name);
3040 static void service_bus_query_pid_done(
3045 Service *s = SERVICE(u);
3050 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3052 if (s->main_pid <= 0 &&
3053 (s->state == SERVICE_START ||
3054 s->state == SERVICE_START_POST ||
3055 s->state == SERVICE_RUNNING ||
3056 s->state == SERVICE_RELOAD))
3057 service_set_main_pid(s, pid);
3060 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3064 /* This is called by the socket code when instantiating a new
3065 * service for a stream socket and the socket needs to be
3068 if (s->meta.load_state != UNIT_LOADED)
3071 if (s->socket_fd >= 0)
3074 if (s->state != SERVICE_DEAD)
3078 s->got_socket_fd = true;
3079 s->accept_socket = sock;
3084 static void service_reset_failed(Unit *u) {
3085 Service *s = SERVICE(u);
3089 if (s->state == SERVICE_FAILED)
3090 service_set_state(s, SERVICE_DEAD);
3095 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3096 [SERVICE_DEAD] = "dead",
3097 [SERVICE_START_PRE] = "start-pre",
3098 [SERVICE_START] = "start",
3099 [SERVICE_START_POST] = "start-post",
3100 [SERVICE_RUNNING] = "running",
3101 [SERVICE_EXITED] = "exited",
3102 [SERVICE_RELOAD] = "reload",
3103 [SERVICE_STOP] = "stop",
3104 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3105 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3106 [SERVICE_STOP_POST] = "stop-post",
3107 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3108 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3109 [SERVICE_FAILED] = "failed",
3110 [SERVICE_AUTO_RESTART] = "auto-restart",
3113 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3115 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3116 [SERVICE_RESTART_NO] = "no",
3117 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3118 [SERVICE_RESTART_ALWAYS] = "always",
3121 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3123 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3124 [SERVICE_SIMPLE] = "simple",
3125 [SERVICE_FORKING] = "forking",
3126 [SERVICE_ONESHOT] = "oneshot",
3127 [SERVICE_DBUS] = "dbus",
3128 [SERVICE_NOTIFY] = "notify"
3131 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3133 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3134 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3135 [SERVICE_EXEC_START] = "ExecStart",
3136 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3137 [SERVICE_EXEC_RELOAD] = "ExecReload",
3138 [SERVICE_EXEC_STOP] = "ExecStop",
3139 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3142 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3144 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3145 [NOTIFY_NONE] = "none",
3146 [NOTIFY_MAIN] = "main",
3147 [NOTIFY_ALL] = "all"
3150 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3152 const UnitVTable service_vtable = {
3153 .suffix = ".service",
3154 .show_status = true,
3156 .init = service_init,
3157 .done = service_done,
3158 .load = service_load,
3160 .coldplug = service_coldplug,
3162 .dump = service_dump,
3164 .start = service_start,
3165 .stop = service_stop,
3166 .reload = service_reload,
3168 .can_reload = service_can_reload,
3170 .serialize = service_serialize,
3171 .deserialize_item = service_deserialize_item,
3173 .active_state = service_active_state,
3174 .sub_state_to_string = service_sub_state_to_string,
3176 #ifdef HAVE_SYSV_COMPAT
3177 .check_gc = service_check_gc,
3179 .check_snapshot = service_check_snapshot,
3181 .sigchld_event = service_sigchld_event,
3182 .timer_event = service_timer_event,
3184 .reset_failed = service_reset_failed,
3186 .cgroup_notify_empty = service_cgroup_notify_event,
3187 .notify_message = service_notify_message,
3189 .bus_name_owner_change = service_bus_name_owner_change,
3190 .bus_query_pid_done = service_bus_query_pid_done,
3192 .bus_interface = "org.freedesktop.systemd1.Service",
3193 .bus_message_handler = bus_service_message_handler,
3194 .bus_invalidating_properties = bus_service_invalidating_properties,
3196 #ifdef HAVE_SYSV_COMPAT
3197 .enumerate = service_enumerate