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"
36 #include "bus-errors.h"
38 #define COMMENTS "#;\n"
39 #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:") &&
461 !u->meta.description) {
463 size_t k = strlen(t);
466 if (t[k-1] == '\\') {
471 if (!(d = strdup(strstrip(t+12)))) {
476 free(u->meta.description);
477 u->meta.description = d;
479 } else if (startswith_no_case(t, "pidfile:")) {
486 if (!path_is_absolute(fn)) {
487 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
491 if (!(fn = strdup(fn))) {
500 } else if (state == DESCRIPTION) {
502 /* Try to parse Red Hat style description
505 size_t k = strlen(t);
513 assert(u->meta.description);
514 if (asprintf(&d, "%s %s", u->meta.description, strstrip(t)) < 0) {
519 free(u->meta.description);
520 u->meta.description = d;
522 } else if (state == LSB || state == LSB_DESCRIPTION) {
524 if (startswith_no_case(t, "Provides:")) {
530 FOREACH_WORD_QUOTED(w, z, t+9, i) {
533 if (!(n = strndup(w, z))) {
538 r = sysv_translate_facility(n, &m);
547 if (unit_name_to_type(m) == UNIT_SERVICE)
548 r = unit_add_name(u, m);
550 r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_REQUIRES, m, NULL, true);
558 } else if (startswith_no_case(t, "Required-Start:") ||
559 startswith_no_case(t, "Should-Start:") ||
560 startswith_no_case(t, "X-Start-Before:") ||
561 startswith_no_case(t, "X-Start-After:")) {
567 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
570 if (!(n = strndup(w, z))) {
575 r = sysv_translate_facility(n, &m);
584 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
590 } else if (startswith_no_case(t, "Default-Start:")) {
595 k = delete_chars(t+14, WHITESPACE "-");
598 if (!(d = strdup(k))) {
603 free(s->sysv_runlevels);
604 s->sysv_runlevels = d;
607 } else if (startswith_no_case(t, "Description:") &&
608 !u->meta.description) {
611 /* We use the long description only if
612 * no short description is set. */
614 state = LSB_DESCRIPTION;
616 if (!(d = strdup(strstrip(t+12)))) {
621 free(u->meta.description);
622 u->meta.description = d;
624 } else if (startswith_no_case(t, "Short-Description:")) {
629 if (!(d = strdup(strstrip(t+18)))) {
634 u->meta.description = d;
636 } else if (startswith_no_case(t, "X-Interactive:")) {
639 if ((b = parse_boolean(strstrip(t+14))) < 0) {
640 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
645 s->exec_context.std_input = EXEC_INPUT_TTY;
647 s->exec_context.std_input = EXEC_INPUT_NULL;
649 } else if (state == LSB_DESCRIPTION) {
651 if (startswith(l, "#\t") || startswith(l, "# ")) {
654 assert(u->meta.description);
655 if (asprintf(&d, "%s %s", u->meta.description, t) < 0) {
660 free(u->meta.description);
661 u->meta.description = d;
668 if ((r = sysv_exec_commands(s)) < 0)
671 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
672 /* If there a runlevels configured for this service
673 * but none of the standard ones, then we assume this
674 * is some special kind of service (which might be
675 * needed for early boot) and don't create any links
678 s->meta.default_dependencies = false;
680 /* Don't timeout special services during boot (like fsck) */
684 /* Special setting for all SysV services */
685 s->type = SERVICE_FORKING;
686 s->valid_no_process = true;
687 s->restart = SERVICE_ONCE;
688 s->exec_context.std_output = EXEC_OUTPUT_TTY;
689 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
691 u->meta.load_state = UNIT_LOADED;
702 static int service_load_sysv_name(Service *s, const char *name) {
708 /* For SysV services we strip the boot. or .sh
709 * prefixes/suffixes. */
710 if (startswith(name, "boot.") ||
711 endswith(name, ".sh.service"))
714 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
718 if (asprintf(&path, "%s/%s", *p, name) < 0)
721 assert(endswith(path, ".service"));
722 path[strlen(path)-8] = 0;
724 r = service_load_sysv_path(s, path);
726 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
727 /* Try Debian style xxx.sh source'able init scripts */
729 r = service_load_sysv_path(s, path);
734 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
735 /* Try SUSE style boot.xxx init scripts */
737 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
740 path[strlen(path)-8] = 0;
741 r = service_load_sysv_path(s, path);
748 if ((s->meta.load_state != UNIT_STUB))
755 static int service_load_sysv(Service *s) {
762 /* Load service data from SysV init scripts, preferably with
765 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
768 if ((t = s->meta.id))
769 if ((r = service_load_sysv_name(s, t)) < 0)
772 if (s->meta.load_state == UNIT_STUB)
773 SET_FOREACH(t, s->meta.names, i) {
777 if ((r == service_load_sysv_name(s, t)) < 0)
780 if (s->meta.load_state != UNIT_STUB)
787 static int service_add_bus_name(Service *s) {
794 if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
797 r = unit_merge_by_name(UNIT(s), n);
803 static int service_verify(Service *s) {
806 if (s->meta.load_state != UNIT_LOADED)
809 if (!s->exec_command[SERVICE_EXEC_START]) {
810 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
814 if (s->exec_command[SERVICE_EXEC_START]->command_next) {
815 log_error("%s has more than one ExecStart setting. Refusing.", s->meta.id);
819 if (s->type == SERVICE_DBUS && !s->bus_name) {
820 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
824 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
825 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
832 static int service_add_default_dependencies(Service *s) {
837 /* Add a number of automatic dependencies useful for the
838 * majority of services. */
840 /* First, pull in base system */
841 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
843 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
846 } else if (s->meta.manager->running_as == MANAGER_SESSION) {
848 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
852 /* Second, activate normal shutdown */
853 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
856 static int service_load(Unit *u) {
858 Service *s = SERVICE(u);
862 /* Load a .service file */
863 if ((r = unit_load_fragment(u)) < 0)
866 /* Load a classic init script as a fallback, if we couldn't find anything */
867 if (u->meta.load_state == UNIT_STUB)
868 if ((r = service_load_sysv(s)) < 0)
871 /* Still nothing found? Then let's give up */
872 if (u->meta.load_state == UNIT_STUB)
875 /* We were able to load something, then let's add in the
876 * dropin directories. */
877 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
880 /* This is a new unit? Then let's add in some extras */
881 if (u->meta.load_state == UNIT_LOADED) {
882 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
885 if ((r = unit_add_default_cgroup(u)) < 0)
888 if ((r = sysv_fix_order(s)) < 0)
892 if ((r = service_add_bus_name(s)) < 0)
895 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
899 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
900 s->notify_access = NOTIFY_MAIN;
902 if (s->type == SERVICE_DBUS || s->bus_name)
903 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
906 if (s->meta.default_dependencies)
907 if ((r = service_add_default_dependencies(s)) < 0)
911 return service_verify(s);
914 static void service_dump(Unit *u, FILE *f, const char *prefix) {
916 ServiceExecCommand c;
917 Service *s = SERVICE(u);
923 p2 = strappend(prefix, "\t");
924 prefix2 = p2 ? p2 : prefix;
927 "%sService State: %s\n"
928 "%sPermissionsStartOnly: %s\n"
929 "%sRootDirectoryStartOnly: %s\n"
930 "%sValidNoProcess: %s\n"
932 "%sNotifyAccess: %s\n",
933 prefix, service_state_to_string(s->state),
934 prefix, yes_no(s->permissions_start_only),
935 prefix, yes_no(s->root_directory_start_only),
936 prefix, yes_no(s->valid_no_process),
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 apply_tty_stdin,
1325 bool set_notify_socket,
1330 int *fds = NULL, *fdsbuf = NULL;
1331 unsigned n_fds = 0, n_env = 0;
1332 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1339 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1340 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1341 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1343 if (s->socket_fd >= 0) {
1344 fds = &s->socket_fd;
1347 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1354 if (timeout && s->timeout_usec) {
1355 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1358 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1360 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1365 if (!(our_env = new0(char*, 3))) {
1370 if (set_notify_socket)
1371 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
1376 if (s->main_pid > 0)
1377 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1382 if (!(final_env = strv_env_merge(2,
1383 s->meta.manager->environment,
1398 s->meta.manager->confirm_spawn,
1399 s->meta.cgroup_bondings,
1406 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1407 /* FIXME: we need to do something here */
1413 strv_free(final_env);
1423 strv_free(final_env);
1426 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1431 static int main_pid_good(Service *s) {
1434 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1437 /* If we know the pid file, then lets just check if it is
1439 if (s->main_pid_known)
1440 return s->main_pid > 0;
1442 /* We don't know the pid */
1446 static int control_pid_good(Service *s) {
1449 return s->control_pid > 0;
1452 static int cgroup_good(Service *s) {
1457 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
1463 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1470 if (allow_restart &&
1472 (s->restart == SERVICE_RESTART_ALWAYS ||
1473 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
1475 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1478 service_set_state(s, SERVICE_AUTO_RESTART);
1480 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
1485 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
1486 service_enter_dead(s, false, false);
1489 static void service_enter_signal(Service *s, ServiceState state, bool success);
1491 static void service_enter_stop_post(Service *s, bool success) {
1498 service_unwatch_control_pid(s);
1500 s->control_command_id = SERVICE_EXEC_STOP_POST;
1501 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1502 if ((r = service_spawn(s,
1506 !s->permissions_start_only,
1507 !s->root_directory_start_only,
1510 &s->control_pid)) < 0)
1514 service_set_state(s, SERVICE_STOP_POST);
1516 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1521 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
1522 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1525 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1534 if (s->exec_context.kill_mode != KILL_NONE) {
1535 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1537 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1539 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
1540 if (r != -EAGAIN && r != -ESRCH)
1549 if (s->main_pid > 0) {
1550 if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->main_pid : -s->main_pid, sig) < 0 && errno != ESRCH)
1556 if (s->control_pid > 0) {
1557 if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH)
1568 if (sent && (s->main_pid > 0 || s->control_pid > 0)) {
1569 if (s->timeout_usec > 0)
1570 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1573 service_set_state(s, state);
1574 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1575 service_enter_stop_post(s, true);
1577 service_enter_dead(s, true, true);
1582 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
1584 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1585 service_enter_stop_post(s, false);
1587 service_enter_dead(s, false, true);
1590 static void service_enter_stop(Service *s, bool success) {
1598 service_unwatch_control_pid(s);
1600 s->control_command_id = SERVICE_EXEC_STOP;
1601 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1602 if ((r = service_spawn(s,
1606 !s->permissions_start_only,
1607 !s->root_directory_start_only,
1610 &s->control_pid)) < 0)
1613 service_set_state(s, SERVICE_STOP);
1615 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1620 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
1621 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1624 static void service_enter_running(Service *s, bool success) {
1625 int main_pid_ok, cgroup_ok;
1631 main_pid_ok = main_pid_good(s);
1632 cgroup_ok = cgroup_good(s);
1634 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
1635 (s->bus_name_good || s->type != SERVICE_DBUS))
1636 service_set_state(s, SERVICE_RUNNING);
1637 else if (s->valid_no_process)
1638 service_set_state(s, SERVICE_EXITED);
1640 service_enter_stop(s, true);
1643 static void service_enter_start_post(Service *s) {
1647 service_unwatch_control_pid(s);
1649 s->control_command_id = SERVICE_EXEC_START_POST;
1650 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
1651 if ((r = service_spawn(s,
1655 !s->permissions_start_only,
1656 !s->root_directory_start_only,
1659 &s->control_pid)) < 0)
1662 service_set_state(s, SERVICE_START_POST);
1664 service_enter_running(s, true);
1669 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
1670 service_enter_stop(s, false);
1673 static void service_enter_start(Service *s) {
1679 assert(s->exec_command[SERVICE_EXEC_START]);
1680 assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
1682 if (s->type == SERVICE_FORKING)
1683 service_unwatch_control_pid(s);
1685 service_unwatch_main_pid(s);
1687 if ((r = service_spawn(s,
1688 s->exec_command[SERVICE_EXEC_START],
1689 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
1694 s->notify_access != NOTIFY_NONE,
1698 if (s->type == SERVICE_SIMPLE) {
1699 /* For simple services we immediately start
1700 * the START_POST binaries. */
1702 service_set_main_pid(s, pid);
1703 service_enter_start_post(s);
1705 } else if (s->type == SERVICE_FORKING) {
1707 /* For forking services we wait until the start
1708 * process exited. */
1710 s->control_command_id = SERVICE_EXEC_START;
1711 s->control_command = s->exec_command[SERVICE_EXEC_START];
1713 s->control_pid = pid;
1714 service_set_state(s, SERVICE_START);
1716 } else if (s->type == SERVICE_FINISH ||
1717 s->type == SERVICE_DBUS ||
1718 s->type == SERVICE_NOTIFY) {
1720 /* For finishing services we wait until the start
1721 * process exited, too, but it is our main process. */
1723 /* For D-Bus services we know the main pid right away,
1724 * but wait for the bus name to appear on the
1725 * bus. Notify services are similar. */
1727 service_set_main_pid(s, pid);
1728 service_set_state(s, SERVICE_START);
1730 assert_not_reached("Unknown service type");
1735 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
1736 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1739 static void service_enter_start_pre(Service *s) {
1744 service_unwatch_control_pid(s);
1746 s->control_command_id = SERVICE_EXEC_START_PRE;
1747 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
1748 if ((r = service_spawn(s,
1752 !s->permissions_start_only,
1753 !s->root_directory_start_only,
1756 &s->control_pid)) < 0)
1759 service_set_state(s, SERVICE_START_PRE);
1761 service_enter_start(s);
1766 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
1767 service_enter_dead(s, false, true);
1770 static void service_enter_restart(Service *s) {
1775 dbus_error_init(&error);
1777 service_enter_dead(s, true, false);
1779 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL, NULL)) < 0)
1782 log_debug("%s scheduled restart job.", s->meta.id);
1786 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
1787 service_enter_dead(s, false, false);
1789 dbus_error_free(&error);
1792 static void service_enter_reload(Service *s) {
1797 service_unwatch_control_pid(s);
1799 s->control_command_id = SERVICE_EXEC_RELOAD;
1800 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
1801 if ((r = service_spawn(s,
1805 !s->permissions_start_only,
1806 !s->root_directory_start_only,
1809 &s->control_pid)) < 0)
1812 service_set_state(s, SERVICE_RELOAD);
1814 service_enter_running(s, true);
1819 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
1820 service_enter_stop(s, false);
1823 static void service_run_next(Service *s, bool success) {
1827 assert(s->control_command);
1828 assert(s->control_command->command_next);
1833 s->control_command = s->control_command->command_next;
1835 service_unwatch_control_pid(s);
1837 if ((r = service_spawn(s,
1841 !s->permissions_start_only,
1842 !s->root_directory_start_only,
1845 &s->control_pid)) < 0)
1851 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
1853 if (s->state == SERVICE_START_PRE)
1854 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1855 else if (s->state == SERVICE_STOP)
1856 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1857 else if (s->state == SERVICE_STOP_POST)
1858 service_enter_dead(s, false, true);
1860 service_enter_stop(s, false);
1863 static int service_start(Unit *u) {
1864 Service *s = SERVICE(u);
1868 /* We cannot fulfill this request right now, try again later
1870 if (s->state == SERVICE_STOP ||
1871 s->state == SERVICE_STOP_SIGTERM ||
1872 s->state == SERVICE_STOP_SIGKILL ||
1873 s->state == SERVICE_STOP_POST ||
1874 s->state == SERVICE_FINAL_SIGTERM ||
1875 s->state == SERVICE_FINAL_SIGKILL)
1878 /* Already on it! */
1879 if (s->state == SERVICE_START_PRE ||
1880 s->state == SERVICE_START ||
1881 s->state == SERVICE_START_POST)
1884 assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTENANCE || s->state == SERVICE_AUTO_RESTART);
1886 /* Make sure we don't enter a busy loop of some kind. */
1887 if (!ratelimit_test(&s->ratelimit)) {
1888 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
1893 s->main_pid_known = false;
1894 s->allow_restart = true;
1896 service_enter_start_pre(s);
1900 static int service_stop(Unit *u) {
1901 Service *s = SERVICE(u);
1905 /* This is a user request, so don't do restarts on this
1907 s->allow_restart = false;
1910 if (s->state == SERVICE_STOP ||
1911 s->state == SERVICE_STOP_SIGTERM ||
1912 s->state == SERVICE_STOP_SIGKILL ||
1913 s->state == SERVICE_STOP_POST ||
1914 s->state == SERVICE_FINAL_SIGTERM ||
1915 s->state == SERVICE_FINAL_SIGKILL)
1918 /* Don't allow a restart */
1919 if (s->state == SERVICE_AUTO_RESTART) {
1920 service_set_state(s, SERVICE_DEAD);
1924 /* If there's already something running we go directly into
1926 if (s->state == SERVICE_START_PRE ||
1927 s->state == SERVICE_START ||
1928 s->state == SERVICE_START_POST ||
1929 s->state == SERVICE_RELOAD) {
1930 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1934 assert(s->state == SERVICE_RUNNING ||
1935 s->state == SERVICE_EXITED);
1937 service_enter_stop(s, true);
1941 static int service_reload(Unit *u) {
1942 Service *s = SERVICE(u);
1946 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
1948 service_enter_reload(s);
1952 static bool service_can_reload(Unit *u) {
1953 Service *s = SERVICE(u);
1957 return !!s->exec_command[SERVICE_EXEC_RELOAD];
1960 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
1961 Service *s = SERVICE(u);
1967 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
1968 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1970 if (s->control_pid > 0)
1971 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
1973 if (s->main_pid_known && s->main_pid > 0)
1974 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
1976 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
1978 /* There's a minor uncleanliness here: if there are multiple
1979 * commands attached here, we will start from the first one
1981 if (s->control_command_id >= 0)
1982 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
1984 if (s->socket_fd >= 0) {
1987 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
1990 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
1993 if (s->main_exec_status.pid > 0) {
1994 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
1996 if (s->main_exec_status.start_timestamp.realtime > 0) {
1997 unit_serialize_item_format(u, f, "main-exec-status-start-realtime",
1998 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.realtime);
2000 unit_serialize_item_format(u, f, "main-exec-status-start-monotonic",
2001 "%llu", (unsigned long long) s->main_exec_status.start_timestamp.monotonic);
2004 if (s->main_exec_status.exit_timestamp.realtime > 0) {
2005 unit_serialize_item_format(u, f, "main-exec-status-exit-realtime",
2006 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.realtime);
2007 unit_serialize_item_format(u, f, "main-exec-status-exit-monotonic",
2008 "%llu", (unsigned long long) s->main_exec_status.exit_timestamp.monotonic);
2010 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2011 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2018 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2019 Service *s = SERVICE(u);
2027 if (streq(key, "state")) {
2030 if ((state = service_state_from_string(value)) < 0)
2031 log_debug("Failed to parse state value %s", value);
2033 s->deserialized_state = state;
2034 } else if (streq(key, "failure")) {
2037 if ((b = parse_boolean(value)) < 0)
2038 log_debug("Failed to parse failure value %s", value);
2040 s->failure = b || s->failure;
2041 } else if (streq(key, "control-pid")) {
2044 if ((r = parse_pid(value, &pid)) < 0)
2045 log_debug("Failed to parse control-pid value %s", value);
2047 s->control_pid = pid;
2048 } else if (streq(key, "main-pid")) {
2051 if ((r = parse_pid(value, &pid)) < 0)
2052 log_debug("Failed to parse main-pid value %s", value);
2054 service_set_main_pid(s, (pid_t) pid);
2055 } else if (streq(key, "main-pid-known")) {
2058 if ((b = parse_boolean(value)) < 0)
2059 log_debug("Failed to parse main-pid-known value %s", value);
2061 s->main_pid_known = b;
2062 } else if (streq(key, "control-command")) {
2063 ServiceExecCommand id;
2065 if ((id = service_exec_command_from_string(value)) < 0)
2066 log_debug("Failed to parse exec-command value %s", value);
2068 s->control_command_id = id;
2069 s->control_command = s->exec_command[id];
2071 } else if (streq(key, "socket-fd")) {
2074 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2075 log_debug("Failed to parse socket-fd value %s", value);
2078 if (s->socket_fd >= 0)
2079 close_nointr_nofail(s->socket_fd);
2080 s->socket_fd = fdset_remove(fds, fd);
2082 } else if (streq(key, "main-exec-status-pid")) {
2085 if ((r = parse_pid(value, &pid)) < 0)
2086 log_debug("Failed to parse main-exec-status-pid value %s", value);
2088 s->main_exec_status.pid = pid;
2089 } else if (streq(key, "main-exec-status-code")) {
2092 if ((r = safe_atoi(value, &i)) < 0)
2093 log_debug("Failed to parse main-exec-status-code value %s", value);
2095 s->main_exec_status.code = i;
2096 } else if (streq(key, "main-exec-status-status")) {
2099 if ((r = safe_atoi(value, &i)) < 0)
2100 log_debug("Failed to parse main-exec-status-status value %s", value);
2102 s->main_exec_status.status = i;
2103 } else if (streq(key, "main-exec-status-start-realtime")) {
2106 if ((r = safe_atou64(value, &k)) < 0)
2107 log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
2109 s->main_exec_status.start_timestamp.realtime = (usec_t) k;
2110 } else if (streq(key, "main-exec-status-start-monotonic")) {
2113 if ((r = safe_atou64(value, &k)) < 0)
2114 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
2116 s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
2117 } else if (streq(key, "main-exec-status-exit-realtime")) {
2120 if ((r = safe_atou64(value, &k)) < 0)
2121 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
2123 s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
2124 } else if (streq(key, "main-exec-status-exit-monotonic")) {
2127 if ((r = safe_atou64(value, &k)) < 0)
2128 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
2130 s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
2132 log_debug("Unknown serialization key '%s'", key);
2137 static UnitActiveState service_active_state(Unit *u) {
2140 return state_translation_table[SERVICE(u)->state];
2143 static const char *service_sub_state_to_string(Unit *u) {
2146 return service_state_to_string(SERVICE(u)->state);
2149 static bool service_check_gc(Unit *u) {
2150 Service *s = SERVICE(u);
2154 return !!s->sysv_path;
2157 static bool service_check_snapshot(Unit *u) {
2158 Service *s = SERVICE(u);
2162 return !s->got_socket_fd;
2165 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2166 Service *s = SERVICE(u);
2172 success = is_clean_exit(code, status);
2173 s->failure = s->failure || !success;
2175 if (s->main_pid == pid) {
2177 exec_status_exit(&s->main_exec_status, pid, code, status);
2180 if (s->type != SERVICE_FORKING) {
2181 assert(s->exec_command[SERVICE_EXEC_START]);
2182 s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
2185 log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
2187 /* The service exited, so the service is officially
2192 case SERVICE_START_POST:
2193 case SERVICE_RELOAD:
2195 /* Need to wait until the operation is
2200 if (s->type == SERVICE_FINISH) {
2201 /* This was our main goal, so let's go on */
2203 service_enter_start_post(s);
2205 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2208 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2213 case SERVICE_RUNNING:
2214 service_enter_running(s, success);
2217 case SERVICE_STOP_SIGTERM:
2218 case SERVICE_STOP_SIGKILL:
2220 if (!control_pid_good(s))
2221 service_enter_stop_post(s, success);
2223 /* If there is still a control process, wait for that first */
2227 assert_not_reached("Uh, main process died at wrong time.");
2230 } else if (s->control_pid == pid) {
2232 if (s->control_command)
2233 exec_status_exit(&s->control_command->exec_status, pid, code, status);
2237 log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2239 /* If we are shutting things down anyway we
2240 * don't care about failing commands. */
2242 if (s->control_command && s->control_command->command_next && success) {
2244 /* There is another command to *
2245 * execute, so let's do that. */
2247 log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
2248 service_run_next(s, success);
2251 /* No further commands for this step, so let's
2252 * figure out what to do next */
2254 s->control_command = NULL;
2255 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2257 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2261 case SERVICE_START_PRE:
2263 service_enter_start(s);
2265 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2269 assert(s->type == SERVICE_FORKING);
2271 /* Let's try to load the pid
2272 * file here if we can. We
2273 * ignore the return value,
2274 * since the PID file might
2275 * actually be created by a
2276 * START_POST script */
2280 service_load_pid_file(s);
2282 service_enter_start_post(s);
2284 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2288 case SERVICE_START_POST:
2289 if (success && s->pid_file && !s->main_pid_known) {
2292 /* Hmm, let's see if we can
2293 * load the pid now after the
2294 * start-post scripts got
2297 if ((r = service_load_pid_file(s)) < 0)
2298 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
2303 case SERVICE_RELOAD:
2305 service_enter_running(s, true);
2307 service_enter_stop(s, false);
2312 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2315 case SERVICE_STOP_SIGTERM:
2316 case SERVICE_STOP_SIGKILL:
2317 if (main_pid_good(s) <= 0)
2318 service_enter_stop_post(s, success);
2320 /* If there is still a service
2321 * process around, wait until
2322 * that one quit, too */
2325 case SERVICE_STOP_POST:
2326 case SERVICE_FINAL_SIGTERM:
2327 case SERVICE_FINAL_SIGKILL:
2328 service_enter_dead(s, success, true);
2332 assert_not_reached("Uh, control process died at wrong time.");
2338 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2339 Service *s = SERVICE(u);
2342 assert(elapsed == 1);
2344 assert(w == &s->timer_watch);
2348 case SERVICE_START_PRE:
2350 log_warning("%s operation timed out. Terminating.", u->meta.id);
2351 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2354 case SERVICE_START_POST:
2355 case SERVICE_RELOAD:
2356 log_warning("%s operation timed out. Stopping.", u->meta.id);
2357 service_enter_stop(s, false);
2361 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2362 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2365 case SERVICE_STOP_SIGTERM:
2366 log_warning("%s stopping timed out. Killing.", u->meta.id);
2367 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2370 case SERVICE_STOP_SIGKILL:
2371 /* Uh, wie sent a SIGKILL and it is still not gone?
2372 * Must be something we cannot kill, so let's just be
2373 * weirded out and continue */
2375 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2376 service_enter_stop_post(s, false);
2379 case SERVICE_STOP_POST:
2380 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2381 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2384 case SERVICE_FINAL_SIGTERM:
2385 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2386 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2389 case SERVICE_FINAL_SIGKILL:
2390 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
2391 service_enter_dead(s, false, true);
2394 case SERVICE_AUTO_RESTART:
2395 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
2396 service_enter_restart(s);
2400 assert_not_reached("Timeout at wrong time.");
2404 static void service_cgroup_notify_event(Unit *u) {
2405 Service *s = SERVICE(u);
2409 log_debug("%s: cgroup is empty", u->meta.id);
2413 /* Waiting for SIGCHLD is usually more interesting,
2414 * because it includes return codes/signals. Which is
2415 * why we ignore the cgroup events for most cases,
2416 * except when we don't know pid which to expect the
2419 case SERVICE_RUNNING:
2420 service_enter_running(s, true);
2428 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
2429 Service *s = SERVICE(u);
2434 if (s->notify_access == NOTIFY_NONE) {
2435 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2436 u->meta.id, (unsigned long) pid);
2440 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2441 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2442 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2446 log_debug("%s: Got message", u->meta.id);
2448 /* Interpret MAINPID= */
2449 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2450 (s->state == SERVICE_START ||
2451 s->state == SERVICE_START_POST ||
2452 s->state == SERVICE_RUNNING ||
2453 s->state == SERVICE_RELOAD)) {
2455 if (parse_pid(e + 8, &pid) < 0)
2456 log_warning("Failed to parse %s", e);
2458 log_debug("%s: got %s", u->meta.id, e);
2459 service_set_main_pid(s, pid);
2463 /* Interpret READY= */
2464 if (s->type == SERVICE_NOTIFY &&
2465 s->state == SERVICE_START &&
2466 strv_find(tags, "READY=1")) {
2467 log_debug("%s: got READY=1", u->meta.id);
2469 service_enter_start_post(s);
2472 /* Interpret STATUS= */
2473 if ((e = strv_find_prefix(tags, "STATUS="))) {
2476 if (!(t = strdup(e+7))) {
2477 log_error("Failed to allocate string.");
2481 log_debug("%s: got %s", u->meta.id, e);
2483 free(s->status_text);
2488 static int service_enumerate(Manager *m) {
2492 char *path = NULL, *fpath = NULL, *name = NULL;
2497 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
2498 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2503 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2511 if (!(d = opendir(path))) {
2512 if (errno != ENOENT)
2513 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2518 while ((de = readdir(d))) {
2522 if (ignore_file(de->d_name))
2525 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2528 if (strlen(de->d_name) < 4)
2531 a = undecchar(de->d_name[1]);
2532 b = undecchar(de->d_name[2]);
2539 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2544 if (access(fpath, X_OK) < 0) {
2546 if (errno != ENOENT)
2547 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2553 if (!(name = sysv_translate_name(de->d_name + 3))) {
2558 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2559 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2563 if (de->d_name[0] == 'S' &&
2564 (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
2565 SERVICE(service)->sysv_start_priority =
2566 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
2568 manager_dispatch_load_queue(m);
2569 service = unit_follow_merge(service);
2571 /* If this is a native service, rely
2572 * on native ways to pull in a
2573 * service, don't pull it in via sysv
2575 if (service->meta.fragment_path)
2578 if (de->d_name[0] == 'S') {
2580 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
2583 } else if (de->d_name[0] == 'K' &&
2584 (rcnd_table[i].type == RUNLEVEL_DOWN ||
2585 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
2587 /* We honour K links only for
2588 * halt/reboot. For the normal
2589 * runlevels we assume the
2591 * implicitly added by the
2592 * core logic. Also, we don't
2593 * really distuingish here
2594 * between the runlevels 0 and
2595 * 6 and just add them to the
2596 * special shutdown target. On
2597 * SUSE the boot.d/ runlevel
2598 * is also used for shutdown,
2599 * so we add links for that
2600 * too to the shutdown
2603 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
2622 static void service_bus_name_owner_change(
2625 const char *old_owner,
2626 const char *new_owner) {
2628 Service *s = SERVICE(u);
2633 assert(streq(s->bus_name, name));
2634 assert(old_owner || new_owner);
2636 if (old_owner && new_owner)
2637 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
2639 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
2641 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
2643 s->bus_name_good = !!new_owner;
2645 if (s->type == SERVICE_DBUS) {
2647 /* service_enter_running() will figure out what to
2649 if (s->state == SERVICE_RUNNING)
2650 service_enter_running(s, true);
2651 else if (s->state == SERVICE_START && new_owner)
2652 service_enter_start_post(s);
2654 } else if (new_owner &&
2656 (s->state == SERVICE_START ||
2657 s->state == SERVICE_START_POST ||
2658 s->state == SERVICE_RUNNING ||
2659 s->state == SERVICE_RELOAD)) {
2661 /* Try to acquire PID from bus service */
2662 log_debug("Trying to acquire PID from D-Bus name...");
2664 bus_query_pid(u->meta.manager, name);
2668 static void service_bus_query_pid_done(
2673 Service *s = SERVICE(u);
2678 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
2680 if (s->main_pid <= 0 &&
2681 (s->state == SERVICE_START ||
2682 s->state == SERVICE_START_POST ||
2683 s->state == SERVICE_RUNNING ||
2684 s->state == SERVICE_RELOAD))
2685 service_set_main_pid(s, pid);
2688 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
2692 /* This is called by the socket code when instantiating a new
2693 * service for a stream socket and the socket needs to be
2696 if (s->meta.load_state != UNIT_LOADED)
2699 if (s->socket_fd >= 0)
2702 if (s->state != SERVICE_DEAD)
2706 s->got_socket_fd = true;
2712 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
2713 [SERVICE_DEAD] = "dead",
2714 [SERVICE_START_PRE] = "start-pre",
2715 [SERVICE_START] = "start",
2716 [SERVICE_START_POST] = "start-post",
2717 [SERVICE_RUNNING] = "running",
2718 [SERVICE_EXITED] = "exited",
2719 [SERVICE_RELOAD] = "reload",
2720 [SERVICE_STOP] = "stop",
2721 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
2722 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
2723 [SERVICE_STOP_POST] = "stop-post",
2724 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
2725 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
2726 [SERVICE_MAINTENANCE] = "maintenance",
2727 [SERVICE_AUTO_RESTART] = "auto-restart",
2730 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
2732 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
2733 [SERVICE_ONCE] = "once",
2734 [SERVICE_RESTART_ON_SUCCESS] = "restart-on-success",
2735 [SERVICE_RESTART_ALWAYS] = "restart-always",
2738 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
2740 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
2741 [SERVICE_SIMPLE] = "simple",
2742 [SERVICE_FORKING] = "forking",
2743 [SERVICE_FINISH] = "finish",
2744 [SERVICE_DBUS] = "dbus",
2745 [SERVICE_NOTIFY] = "notify"
2748 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
2750 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
2751 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
2752 [SERVICE_EXEC_START] = "ExecStart",
2753 [SERVICE_EXEC_START_POST] = "ExecStartPost",
2754 [SERVICE_EXEC_RELOAD] = "ExecReload",
2755 [SERVICE_EXEC_STOP] = "ExecStop",
2756 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
2759 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
2761 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
2762 [NOTIFY_NONE] = "none",
2763 [NOTIFY_MAIN] = "main",
2764 [NOTIFY_ALL] = "all"
2767 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
2769 const UnitVTable service_vtable = {
2770 .suffix = ".service",
2771 .show_status = true,
2773 .init = service_init,
2774 .done = service_done,
2775 .load = service_load,
2777 .coldplug = service_coldplug,
2779 .dump = service_dump,
2781 .start = service_start,
2782 .stop = service_stop,
2783 .reload = service_reload,
2785 .can_reload = service_can_reload,
2787 .serialize = service_serialize,
2788 .deserialize_item = service_deserialize_item,
2790 .active_state = service_active_state,
2791 .sub_state_to_string = service_sub_state_to_string,
2793 .check_gc = service_check_gc,
2794 .check_snapshot = service_check_snapshot,
2796 .sigchld_event = service_sigchld_event,
2797 .timer_event = service_timer_event,
2799 .cgroup_notify_empty = service_cgroup_notify_event,
2800 .notify_message = service_notify_message,
2802 .bus_name_owner_change = service_bus_name_owner_change,
2803 .bus_query_pid_done = service_bus_query_pid_done,
2805 .bus_message_handler = bus_service_message_handler,
2807 .enumerate = service_enumerate