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"
37 #include "exit-status.h"
41 #ifdef HAVE_SYSV_COMPAT
43 #define DEFAULT_SYSV_TIMEOUT_USEC (5*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 },
68 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
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;
118 s->sysv_start_priority_from_rcnd = -1;
121 s->guess_main_pid = true;
123 exec_context_init(&s->exec_context);
125 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
127 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
130 static void service_unwatch_control_pid(Service *s) {
133 if (s->control_pid <= 0)
136 unit_unwatch_pid(UNIT(s), s->control_pid);
140 static void service_unwatch_main_pid(Service *s) {
143 if (s->main_pid <= 0)
146 unit_unwatch_pid(UNIT(s), s->main_pid);
150 static int service_set_main_pid(Service *s, pid_t pid) {
162 s->main_pid_known = true;
164 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
165 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
166 s->meta.id, (unsigned long) pid);
168 s->main_pid_alien = true;
170 s->main_pid_alien = false;
172 exec_status_start(&s->main_exec_status, pid);
177 static void service_close_socket_fd(Service *s) {
180 if (s->socket_fd < 0)
183 close_nointr_nofail(s->socket_fd);
187 static void service_connection_unref(Service *s) {
190 if (!s->accept_socket)
193 socket_connection_unref(s->accept_socket);
194 s->accept_socket = NULL;
197 static void service_done(Unit *u) {
198 Service *s = SERVICE(u);
205 #ifdef HAVE_SYSV_COMPAT
209 free(s->sysv_runlevels);
210 s->sysv_runlevels = NULL;
213 free(s->status_text);
214 s->status_text = NULL;
216 exec_context_done(&s->exec_context);
217 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
218 s->control_command = NULL;
219 s->main_command = NULL;
221 /* This will leak a process, but at least no memory or any of
223 service_unwatch_main_pid(s);
224 service_unwatch_control_pid(s);
227 unit_unwatch_bus_name(UNIT(u), s->bus_name);
232 service_close_socket_fd(s);
233 service_connection_unref(s);
235 set_free(s->configured_sockets);
237 unit_unwatch_timer(u, &s->timer_watch);
240 #ifdef HAVE_SYSV_COMPAT
241 static char *sysv_translate_name(const char *name) {
244 if (!(r = new(char, strlen(name) + sizeof(".service"))))
247 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
248 if (endswith(name, ".sh"))
249 /* Drop Debian-style .sh suffix */
250 strcpy(stpcpy(r, name) - 3, ".service");
253 if (startswith(name, "boot."))
254 /* Drop SuSE-style boot. prefix */
255 strcpy(stpcpy(r, name + 5), ".service");
257 #ifdef TARGET_FRUGALWARE
258 if (startswith(name, "rc."))
259 /* Drop Frugalware-style rc. prefix */
260 strcpy(stpcpy(r, name + 3), ".service");
263 /* Normal init scripts */
264 strcpy(stpcpy(r, name), ".service");
269 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
271 /* We silently ignore the $ prefix here. According to the LSB
272 * spec it simply indicates whether something is a
273 * standardized name or a distribution-specific one. Since we
274 * just follow what already exists and do not introduce new
275 * uses or names we don't care who introduced a new name. */
277 static const char * const table[] = {
278 /* LSB defined facilities */
279 "local_fs", SPECIAL_LOCAL_FS_TARGET,
280 #ifndef TARGET_MANDRIVA
281 /* Due to unfortunate name selection in Mandriva,
282 * $network is provided by network-up which is ordered
283 * after network which actually starts interfaces.
284 * To break the loop, just ignore it */
285 "network", SPECIAL_NETWORK_TARGET,
287 "named", SPECIAL_NSS_LOOKUP_TARGET,
288 "portmap", SPECIAL_RPCBIND_TARGET,
289 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
290 "syslog", SPECIAL_SYSLOG_TARGET,
291 "time", SPECIAL_TIME_SYNC_TARGET,
293 /* common extensions */
294 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
295 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
298 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
299 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
303 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
304 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
305 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
309 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
320 n = *name == '$' ? name + 1 : name;
322 for (i = 0; i < ELEMENTSOF(table); i += 2) {
324 if (!streq(table[i], n))
330 if (!(r = strdup(table[i+1])))
336 /* If we don't know this name, fallback heuristics to figure
337 * out whether something is a target or a service alias. */
340 if (!unit_prefix_is_valid(n))
343 /* Facilities starting with $ are most likely targets */
344 r = unit_name_build(n, NULL, ".target");
345 } else if (filename && streq(name, filename))
346 /* Names equaling the file name of the services are redundant */
349 /* Everything else we assume to be normal service names */
350 r = sysv_translate_name(n);
361 static int sysv_fix_order(Service *s) {
367 if (s->sysv_start_priority < 0)
370 /* For each pair of services where at least one lacks a LSB
371 * header, we use the start priority value to order things. */
373 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
376 bool special_s, special_t;
378 t = (Service*) other;
383 if (t->meta.load_state != UNIT_LOADED)
386 if (t->sysv_start_priority < 0)
389 /* If both units have modern headers we don't care
390 * about the priorities */
391 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
392 (t->meta.fragment_path || t->sysv_has_lsb))
395 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
396 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
398 if (special_t && !special_s)
400 else if (special_s && !special_t)
402 else if (t->sysv_start_priority < s->sysv_start_priority)
404 else if (t->sysv_start_priority > s->sysv_start_priority)
409 /* FIXME: Maybe we should compare the name here lexicographically? */
411 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
418 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
421 if (!(c = new0(ExecCommand, 1)))
424 if (!(c->path = strdup(path))) {
429 if (!(c->argv = strv_new(path, arg1, NULL))) {
438 static int sysv_exec_commands(Service *s) {
442 assert(s->sysv_path);
444 if (!(c = exec_command_new(s->sysv_path, "start")))
446 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
448 if (!(c = exec_command_new(s->sysv_path, "stop")))
450 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
452 if (!(c = exec_command_new(s->sysv_path, "reload")))
454 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
459 static int service_load_sysv_path(Service *s, const char *path) {
470 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
478 if (!(f = fopen(path, "re"))) {
479 r = errno == ENOENT ? 0 : -errno;
484 if (fstat(fileno(f), &st) < 0) {
490 if (!(s->sysv_path = strdup(path))) {
495 s->sysv_mtime = timespec_load(&st.st_mtim);
497 if (null_or_empty(&st)) {
498 u->meta.load_state = UNIT_MASKED;
504 char l[LINE_MAX], *t;
506 if (!fgets(l, sizeof(l), f)) {
511 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
521 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
523 s->sysv_has_lsb = true;
527 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
533 t += strspn(t, WHITESPACE);
535 if (state == NORMAL) {
537 /* Try to parse Red Hat style chkconfig headers */
539 if (startswith_no_case(t, "chkconfig:")) {
541 char runlevels[16], *k;
545 if (sscanf(t+10, "%15s %i %*i",
547 &start_priority) != 2) {
549 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
553 /* A start priority gathered from the
554 * symlink farms is preferred over the
555 * data from the LSB header. */
556 if (start_priority < 0 || start_priority > 99)
557 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
559 s->sysv_start_priority = start_priority;
561 char_array_0(runlevels);
562 k = delete_chars(runlevels, WHITESPACE "-");
567 if (!(d = strdup(k))) {
572 free(s->sysv_runlevels);
573 s->sysv_runlevels = d;
576 } else if (startswith_no_case(t, "description:")) {
578 size_t k = strlen(t);
582 if (t[k-1] == '\\') {
587 if ((j = strstrip(t+12)) && *j) {
588 if (!(d = strdup(j))) {
595 free(chkconfig_description);
596 chkconfig_description = d;
598 } else if (startswith_no_case(t, "pidfile:")) {
605 if (!path_is_absolute(fn)) {
606 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
610 if (!(fn = strdup(fn))) {
619 } else if (state == DESCRIPTION) {
621 /* Try to parse Red Hat style description
624 size_t k = strlen(t);
632 if ((j = strstrip(t)) && *j) {
635 if (chkconfig_description)
636 d = join(chkconfig_description, " ", j, NULL);
645 free(chkconfig_description);
646 chkconfig_description = d;
649 } else if (state == LSB || state == LSB_DESCRIPTION) {
651 if (startswith_no_case(t, "Provides:")) {
657 FOREACH_WORD_QUOTED(w, z, t+9, i) {
660 if (!(n = strndup(w, z))) {
665 r = sysv_translate_facility(n, file_name_from_path(path), &m);
674 if (unit_name_to_type(m) == UNIT_SERVICE)
675 r = unit_add_name(u, m);
682 * indication that the
684 * now available. This
687 * targets do NOT pull
690 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
693 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
698 } else if (startswith_no_case(t, "Required-Start:") ||
699 startswith_no_case(t, "Should-Start:") ||
700 startswith_no_case(t, "X-Start-Before:") ||
701 startswith_no_case(t, "X-Start-After:")) {
707 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
710 if (!(n = strndup(w, z))) {
715 r = sysv_translate_facility(n, file_name_from_path(path), &m);
718 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
728 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
731 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
735 } else if (startswith_no_case(t, "Default-Start:")) {
740 k = delete_chars(t+14, WHITESPACE "-");
743 if (!(d = strdup(k))) {
748 free(s->sysv_runlevels);
749 s->sysv_runlevels = d;
752 } else if (startswith_no_case(t, "Description:")) {
755 state = LSB_DESCRIPTION;
757 if ((j = strstrip(t+12)) && *j) {
758 if (!(d = strdup(j))) {
765 free(long_description);
766 long_description = d;
768 } else if (startswith_no_case(t, "Short-Description:")) {
773 if ((j = strstrip(t+18)) && *j) {
774 if (!(d = strdup(j))) {
781 free(short_description);
782 short_description = d;
784 } else if (state == LSB_DESCRIPTION) {
786 if (startswith(l, "#\t") || startswith(l, "# ")) {
789 if ((j = strstrip(t)) && *j) {
792 if (long_description)
793 d = join(long_description, " ", t, NULL);
802 free(long_description);
803 long_description = d;
812 if ((r = sysv_exec_commands(s)) < 0)
815 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
816 /* If there a runlevels configured for this service
817 * but none of the standard ones, then we assume this
818 * is some special kind of service (which might be
819 * needed for early boot) and don't create any links
822 s->meta.default_dependencies = false;
824 /* Don't timeout special services during boot (like fsck) */
827 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
829 /* Special setting for all SysV services */
830 s->type = SERVICE_FORKING;
831 s->remain_after_exit = !s->pid_file;
832 s->restart = SERVICE_RESTART_NO;
834 if (s->meta.manager->sysv_console)
835 s->exec_context.std_output = EXEC_OUTPUT_TTY;
837 s->exec_context.kill_mode = KILL_PROCESS;
839 /* We use the long description only if
840 * no short description is set. */
842 if (short_description)
843 description = short_description;
844 else if (chkconfig_description)
845 description = chkconfig_description;
846 else if (long_description)
847 description = long_description;
854 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
859 u->meta.description = d;
862 /* The priority that has been set in /etc/rcN.d/ hierarchies
863 * takes precedence over what is stored as default in the LSB
865 if (s->sysv_start_priority_from_rcnd >= 0)
866 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
868 u->meta.load_state = UNIT_LOADED;
876 free(short_description);
877 free(long_description);
878 free(chkconfig_description);
883 static int service_load_sysv_name(Service *s, const char *name) {
889 /* For SysV services we strip the boot.*, rc.* and *.sh
890 * prefixes/suffixes. */
891 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
892 if (endswith(name, ".sh.service"))
897 if (startswith(name, "boot."))
901 #ifdef TARGET_FRUGALWARE
902 if (startswith(name, "rc."))
906 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
910 path = join(*p, "/", name, NULL);
914 assert(endswith(path, ".service"));
915 path[strlen(path)-8] = 0;
917 r = service_load_sysv_path(s, path);
919 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
920 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
921 /* Try Debian style *.sh source'able init scripts */
923 r = service_load_sysv_path(s, path);
929 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
930 /* Try SUSE style boot.* init scripts */
932 path = join(*p, "/boot.", name, NULL);
936 /* Drop .service suffix */
937 path[strlen(path)-8] = 0;
938 r = service_load_sysv_path(s, path);
943 #ifdef TARGET_FRUGALWARE
944 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
945 /* Try Frugalware style rc.* init scripts */
947 path = join(*p, "/rc.", name, NULL);
951 /* Drop .service suffix */
952 path[strlen(path)-8] = 0;
953 r = service_load_sysv_path(s, path);
961 if ((s->meta.load_state != UNIT_STUB))
968 static int service_load_sysv(Service *s) {
975 /* Load service data from SysV init scripts, preferably with
978 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
981 if ((t = s->meta.id))
982 if ((r = service_load_sysv_name(s, t)) < 0)
985 if (s->meta.load_state == UNIT_STUB)
986 SET_FOREACH(t, s->meta.names, i) {
990 if ((r = service_load_sysv_name(s, t)) < 0)
993 if (s->meta.load_state != UNIT_STUB)
1001 static int fsck_fix_order(Service *s) {
1007 if (s->fsck_passno <= 0)
1010 /* For each pair of services where both have an fsck priority
1011 * we order things based on it. */
1013 LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) {
1017 t = (Service*) other;
1022 if (t->meta.load_state != UNIT_LOADED)
1025 if (t->fsck_passno <= 0)
1028 if (t->fsck_passno < s->fsck_passno)
1030 else if (t->fsck_passno > s->fsck_passno)
1035 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1042 static int service_verify(Service *s) {
1045 if (s->meta.load_state != UNIT_LOADED)
1048 if (!s->exec_command[SERVICE_EXEC_START]) {
1049 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
1053 if (s->type != SERVICE_ONESHOT &&
1054 s->exec_command[SERVICE_EXEC_START]->command_next) {
1055 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
1059 if (s->type == SERVICE_ONESHOT &&
1060 s->exec_command[SERVICE_EXEC_RELOAD]) {
1061 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s->meta.id);
1065 if (s->type == SERVICE_DBUS && !s->bus_name) {
1066 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1070 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1071 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
1078 static int service_add_default_dependencies(Service *s) {
1083 /* Add a number of automatic dependencies useful for the
1084 * majority of services. */
1086 /* First, pull in base system */
1087 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1089 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1092 } else if (s->meta.manager->running_as == MANAGER_USER) {
1094 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1098 /* Second, activate normal shutdown */
1099 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1102 static void service_fix_output(Service *s) {
1105 /* If nothing has been explicitly configured, patch default
1106 * output in. If input is socket/tty we avoid this however,
1107 * since in that case we want output to default to the same
1108 * place as we read input from. */
1110 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1111 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1112 s->exec_context.std_input == EXEC_INPUT_NULL)
1113 s->exec_context.std_error = s->meta.manager->default_std_error;
1115 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1116 s->exec_context.std_input == EXEC_INPUT_NULL)
1117 s->exec_context.std_output = s->meta.manager->default_std_output;
1120 static int service_load(Unit *u) {
1122 Service *s = SERVICE(u);
1126 /* Load a .service file */
1127 if ((r = unit_load_fragment(u)) < 0)
1130 #ifdef HAVE_SYSV_COMPAT
1131 /* Load a classic init script as a fallback, if we couldn't find anything */
1132 if (u->meta.load_state == UNIT_STUB)
1133 if ((r = service_load_sysv(s)) < 0)
1137 /* Still nothing found? Then let's give up */
1138 if (u->meta.load_state == UNIT_STUB)
1141 /* We were able to load something, then let's add in the
1142 * dropin directories. */
1143 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1146 /* This is a new unit? Then let's add in some extras */
1147 if (u->meta.load_state == UNIT_LOADED) {
1148 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1151 if ((r = unit_add_default_cgroups(u)) < 0)
1154 #ifdef HAVE_SYSV_COMPAT
1155 if ((r = sysv_fix_order(s)) < 0)
1159 if ((r = fsck_fix_order(s)) < 0)
1163 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1166 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1167 s->notify_access = NOTIFY_MAIN;
1169 if (s->type == SERVICE_DBUS || s->bus_name)
1170 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1173 if (s->meta.default_dependencies)
1174 if ((r = service_add_default_dependencies(s)) < 0)
1177 service_fix_output(s);
1180 return service_verify(s);
1183 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1185 ServiceExecCommand c;
1186 Service *s = SERVICE(u);
1187 const char *prefix2;
1192 p2 = strappend(prefix, "\t");
1193 prefix2 = p2 ? p2 : prefix;
1196 "%sService State: %s\n"
1197 "%sPermissionsStartOnly: %s\n"
1198 "%sRootDirectoryStartOnly: %s\n"
1199 "%sRemainAfterExit: %s\n"
1200 "%sGuessMainPID: %s\n"
1203 "%sNotifyAccess: %s\n",
1204 prefix, service_state_to_string(s->state),
1205 prefix, yes_no(s->permissions_start_only),
1206 prefix, yes_no(s->root_directory_start_only),
1207 prefix, yes_no(s->remain_after_exit),
1208 prefix, yes_no(s->guess_main_pid),
1209 prefix, service_type_to_string(s->type),
1210 prefix, service_restart_to_string(s->restart),
1211 prefix, notify_access_to_string(s->notify_access));
1213 if (s->control_pid > 0)
1215 "%sControl PID: %lu\n",
1216 prefix, (unsigned long) s->control_pid);
1218 if (s->main_pid > 0)
1221 "%sMain PID Known: %s\n"
1222 "%sMain PID Alien: %s\n",
1223 prefix, (unsigned long) s->main_pid,
1224 prefix, yes_no(s->main_pid_known),
1225 prefix, yes_no(s->main_pid_alien));
1230 prefix, s->pid_file);
1235 "%sBus Name Good: %s\n",
1236 prefix, s->bus_name,
1237 prefix, yes_no(s->bus_name_good));
1239 exec_context_dump(&s->exec_context, f, prefix);
1241 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1243 if (!s->exec_command[c])
1246 fprintf(f, "%s-> %s:\n",
1247 prefix, service_exec_command_to_string(c));
1249 exec_command_dump_list(s->exec_command[c], f, prefix2);
1252 #ifdef HAVE_SYSV_COMPAT
1255 "%sSysV Init Script Path: %s\n"
1256 "%sSysV Init Script has LSB Header: %s\n"
1257 "%sSysVEnabled: %s\n",
1258 prefix, s->sysv_path,
1259 prefix, yes_no(s->sysv_has_lsb),
1260 prefix, yes_no(s->sysv_enabled));
1262 if (s->sysv_start_priority >= 0)
1264 "%sSysVStartPriority: %i\n",
1265 prefix, s->sysv_start_priority);
1267 if (s->sysv_runlevels)
1268 fprintf(f, "%sSysVRunLevels: %s\n",
1269 prefix, s->sysv_runlevels);
1272 if (s->fsck_passno > 0)
1274 "%sFsckPassNo: %i\n",
1275 prefix, s->fsck_passno);
1278 fprintf(f, "%sStatus Text: %s\n",
1279 prefix, s->status_text);
1284 static int service_load_pid_file(Service *s, bool warn_if_missing) {
1294 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1295 if (warn_if_missing)
1296 log_warning("Failed to read PID file %s after %s. The service might be broken.",
1297 s->pid_file, service_state_to_string(s->state));
1301 r = parse_pid(k, &pid);
1307 if (kill(pid, 0) < 0 && errno != EPERM) {
1308 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1309 (unsigned long) pid, s->pid_file);
1313 if (s->main_pid_known) {
1314 if (pid == s->main_pid)
1317 log_debug("Main PID changing: %lu -> %lu",
1318 (unsigned long) s->main_pid, (unsigned long) pid);
1319 service_unwatch_main_pid(s);
1320 s->main_pid_known = false;
1323 if ((r = service_set_main_pid(s, pid)) < 0)
1326 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1327 /* FIXME: we need to do something here */
1333 static int service_search_main_pid(Service *s) {
1339 /* If we know it anyway, don't ever fallback to unreliable
1341 if (s->main_pid_known)
1344 if (!s->guess_main_pid)
1347 assert(s->main_pid <= 0);
1349 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1352 if ((r = service_set_main_pid(s, pid)) < 0)
1355 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1356 /* FIXME: we need to do something here */
1362 static int service_get_sockets(Service *s, Set **_set) {
1371 if (s->socket_fd >= 0)
1374 if (!set_isempty(s->configured_sockets))
1377 /* Collects all Socket objects that belong to this
1378 * service. Note that a service might have multiple sockets
1379 * via multiple names. */
1381 if (!(set = set_new(NULL, NULL)))
1384 SET_FOREACH(t, s->meta.names, i) {
1388 /* Look for all socket objects that go by any of our
1389 * units and collect their fds */
1391 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1396 p = manager_get_unit(s->meta.manager, k);
1402 if ((r = set_put(set, p)) < 0)
1414 static int service_notify_sockets_dead(Service *s) {
1416 Set *set, *free_set = NULL;
1422 /* Notifies all our sockets when we die */
1424 if (s->socket_fd >= 0)
1427 if (!set_isempty(s->configured_sockets))
1428 set = s->configured_sockets;
1430 if ((r = service_get_sockets(s, &free_set)) < 0)
1436 SET_FOREACH(sock, set, i)
1437 socket_notify_service_dead(sock);
1444 static void service_set_state(Service *s, ServiceState state) {
1445 ServiceState old_state;
1448 old_state = s->state;
1451 if (state != SERVICE_START_PRE &&
1452 state != SERVICE_START &&
1453 state != SERVICE_START_POST &&
1454 state != SERVICE_RELOAD &&
1455 state != SERVICE_STOP &&
1456 state != SERVICE_STOP_SIGTERM &&
1457 state != SERVICE_STOP_SIGKILL &&
1458 state != SERVICE_STOP_POST &&
1459 state != SERVICE_FINAL_SIGTERM &&
1460 state != SERVICE_FINAL_SIGKILL &&
1461 state != SERVICE_AUTO_RESTART)
1462 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1464 if (state != SERVICE_START &&
1465 state != SERVICE_START_POST &&
1466 state != SERVICE_RUNNING &&
1467 state != SERVICE_RELOAD &&
1468 state != SERVICE_STOP &&
1469 state != SERVICE_STOP_SIGTERM &&
1470 state != SERVICE_STOP_SIGKILL) {
1471 service_unwatch_main_pid(s);
1472 s->main_command = NULL;
1475 if (state != SERVICE_START_PRE &&
1476 state != SERVICE_START &&
1477 state != SERVICE_START_POST &&
1478 state != SERVICE_RELOAD &&
1479 state != SERVICE_STOP &&
1480 state != SERVICE_STOP_SIGTERM &&
1481 state != SERVICE_STOP_SIGKILL &&
1482 state != SERVICE_STOP_POST &&
1483 state != SERVICE_FINAL_SIGTERM &&
1484 state != SERVICE_FINAL_SIGKILL) {
1485 service_unwatch_control_pid(s);
1486 s->control_command = NULL;
1487 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1490 if (state == SERVICE_DEAD ||
1491 state == SERVICE_STOP ||
1492 state == SERVICE_STOP_SIGTERM ||
1493 state == SERVICE_STOP_SIGKILL ||
1494 state == SERVICE_STOP_POST ||
1495 state == SERVICE_FINAL_SIGTERM ||
1496 state == SERVICE_FINAL_SIGKILL ||
1497 state == SERVICE_FAILED ||
1498 state == SERVICE_AUTO_RESTART)
1499 service_notify_sockets_dead(s);
1501 if (state != SERVICE_START_PRE &&
1502 state != SERVICE_START &&
1503 state != SERVICE_START_POST &&
1504 state != SERVICE_RUNNING &&
1505 state != SERVICE_RELOAD &&
1506 state != SERVICE_STOP &&
1507 state != SERVICE_STOP_SIGTERM &&
1508 state != SERVICE_STOP_SIGKILL &&
1509 state != SERVICE_STOP_POST &&
1510 state != SERVICE_FINAL_SIGTERM &&
1511 state != SERVICE_FINAL_SIGKILL &&
1512 !(state == SERVICE_DEAD && s->meta.job)) {
1513 service_close_socket_fd(s);
1514 service_connection_unref(s);
1517 /* For the inactive states unit_notify() will trim the cgroup,
1518 * but for exit we have to do that ourselves... */
1519 if (state == SERVICE_EXITED && s->meta.manager->n_reloading <= 0)
1520 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1522 if (old_state != state)
1523 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
1525 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], !s->reload_failure);
1526 s->reload_failure = false;
1529 static int service_coldplug(Unit *u) {
1530 Service *s = SERVICE(u);
1534 assert(s->state == SERVICE_DEAD);
1536 if (s->deserialized_state != s->state) {
1538 if (s->deserialized_state == SERVICE_START_PRE ||
1539 s->deserialized_state == SERVICE_START ||
1540 s->deserialized_state == SERVICE_START_POST ||
1541 s->deserialized_state == SERVICE_RELOAD ||
1542 s->deserialized_state == SERVICE_STOP ||
1543 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1544 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1545 s->deserialized_state == SERVICE_STOP_POST ||
1546 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1547 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1548 s->deserialized_state == SERVICE_AUTO_RESTART) {
1550 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1553 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1555 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1560 if ((s->deserialized_state == SERVICE_START &&
1561 (s->type == SERVICE_FORKING ||
1562 s->type == SERVICE_DBUS ||
1563 s->type == SERVICE_ONESHOT ||
1564 s->type == SERVICE_NOTIFY)) ||
1565 s->deserialized_state == SERVICE_START_POST ||
1566 s->deserialized_state == SERVICE_RUNNING ||
1567 s->deserialized_state == SERVICE_RELOAD ||
1568 s->deserialized_state == SERVICE_STOP ||
1569 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1570 s->deserialized_state == SERVICE_STOP_SIGKILL)
1571 if (s->main_pid > 0)
1572 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1575 if (s->deserialized_state == SERVICE_START_PRE ||
1576 s->deserialized_state == SERVICE_START ||
1577 s->deserialized_state == SERVICE_START_POST ||
1578 s->deserialized_state == SERVICE_RELOAD ||
1579 s->deserialized_state == SERVICE_STOP ||
1580 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1581 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1582 s->deserialized_state == SERVICE_STOP_POST ||
1583 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1584 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1585 if (s->control_pid > 0)
1586 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1589 service_set_state(s, s->deserialized_state);
1595 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1599 unsigned rn_fds = 0;
1600 Set *set, *free_set = NULL;
1607 if (s->socket_fd >= 0)
1610 if (!set_isempty(s->configured_sockets))
1611 set = s->configured_sockets;
1613 if ((r = service_get_sockets(s, &free_set)) < 0)
1619 SET_FOREACH(sock, set, i) {
1623 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1635 if (!(t = new(int, rn_fds+cn_fds))) {
1641 memcpy(t, rfds, rn_fds * sizeof(int));
1642 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1647 rn_fds = rn_fds+cn_fds;
1665 static int service_spawn(
1670 bool apply_permissions,
1672 bool apply_tty_stdin,
1673 bool set_notify_socket,
1678 int *fds = NULL, *fdsbuf = NULL;
1679 unsigned n_fds = 0, n_env = 0;
1680 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1687 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1688 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1689 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1691 if (s->socket_fd >= 0) {
1692 fds = &s->socket_fd;
1695 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1702 if (timeout && s->timeout_usec) {
1703 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1706 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1708 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1713 if (!(our_env = new0(char*, 4))) {
1718 if (set_notify_socket)
1719 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) {
1724 if (s->main_pid > 0)
1725 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1730 if (!(final_env = strv_env_merge(2,
1731 s->meta.manager->environment,
1746 s->meta.manager->confirm_spawn,
1747 s->meta.cgroup_bondings,
1748 s->meta.cgroup_attributes,
1755 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1756 /* FIXME: we need to do something here */
1762 strv_free(final_env);
1772 strv_free(final_env);
1775 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1780 static int main_pid_good(Service *s) {
1783 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1786 /* If we know the pid file, then lets just check if it is
1788 if (s->main_pid_known) {
1790 /* If it's an alien child let's check if it is still
1792 if (s->main_pid_alien)
1793 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1795 /* .. otherwise assume we'll get a SIGCHLD for it,
1796 * which we really should wait for to collect exit
1797 * status and code */
1798 return s->main_pid > 0;
1801 /* We don't know the pid */
1805 static int control_pid_good(Service *s) {
1808 return s->control_pid > 0;
1811 static int cgroup_good(Service *s) {
1816 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
1822 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1829 if (allow_restart &&
1830 !s->forbid_restart &&
1831 (s->restart == SERVICE_RESTART_ALWAYS ||
1832 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1833 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1834 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1835 (s->main_exec_status.code == CLD_KILLED ||
1836 s->main_exec_status.code == CLD_DUMPED)))) {
1838 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1841 service_set_state(s, SERVICE_AUTO_RESTART);
1843 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
1845 s->forbid_restart = false;
1850 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
1851 service_enter_dead(s, false, false);
1854 static void service_enter_signal(Service *s, ServiceState state, bool success);
1856 static void service_enter_stop_post(Service *s, bool success) {
1863 service_unwatch_control_pid(s);
1865 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1866 s->control_command_id = SERVICE_EXEC_STOP_POST;
1868 if ((r = service_spawn(s,
1872 !s->permissions_start_only,
1873 !s->root_directory_start_only,
1876 &s->control_pid)) < 0)
1880 service_set_state(s, SERVICE_STOP_POST);
1882 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1887 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
1888 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1891 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1893 Set *pid_set = NULL;
1894 bool wait_for_exit = false;
1901 if (s->exec_context.kill_mode != KILL_NONE) {
1902 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1904 if (s->main_pid > 0) {
1905 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1906 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1908 wait_for_exit = !s->main_pid_alien;
1911 if (s->control_pid > 0) {
1912 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1913 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1915 wait_for_exit = true;
1918 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1920 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1925 /* Exclude the main/control pids from being killed via the cgroup */
1926 if (s->main_pid > 0)
1927 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1930 if (s->control_pid > 0)
1931 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1934 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
1935 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1936 log_warning("Failed to kill control group: %s", strerror(-r));
1938 wait_for_exit = true;
1945 if (wait_for_exit) {
1946 if (s->timeout_usec > 0)
1947 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1950 service_set_state(s, state);
1951 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1952 service_enter_stop_post(s, true);
1954 service_enter_dead(s, true, true);
1959 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
1961 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1962 service_enter_stop_post(s, false);
1964 service_enter_dead(s, false, true);
1970 static void service_enter_stop(Service *s, bool success) {
1978 service_unwatch_control_pid(s);
1980 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1981 s->control_command_id = SERVICE_EXEC_STOP;
1983 if ((r = service_spawn(s,
1987 !s->permissions_start_only,
1988 !s->root_directory_start_only,
1991 &s->control_pid)) < 0)
1994 service_set_state(s, SERVICE_STOP);
1996 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2001 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
2002 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2005 static void service_enter_running(Service *s, bool success) {
2006 int main_pid_ok, cgroup_ok;
2012 main_pid_ok = main_pid_good(s);
2013 cgroup_ok = cgroup_good(s);
2015 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2016 (s->bus_name_good || s->type != SERVICE_DBUS))
2017 service_set_state(s, SERVICE_RUNNING);
2018 else if (s->remain_after_exit)
2019 service_set_state(s, SERVICE_EXITED);
2021 service_enter_stop(s, true);
2024 static void service_enter_start_post(Service *s) {
2028 service_unwatch_control_pid(s);
2030 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2031 s->control_command_id = SERVICE_EXEC_START_POST;
2033 if ((r = service_spawn(s,
2037 !s->permissions_start_only,
2038 !s->root_directory_start_only,
2041 &s->control_pid)) < 0)
2044 service_set_state(s, SERVICE_START_POST);
2046 service_enter_running(s, true);
2051 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
2052 service_enter_stop(s, false);
2055 static void service_enter_start(Service *s) {
2062 assert(s->exec_command[SERVICE_EXEC_START]);
2063 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2065 if (s->type == SERVICE_FORKING)
2066 service_unwatch_control_pid(s);
2068 service_unwatch_main_pid(s);
2070 if (s->type == SERVICE_FORKING) {
2071 s->control_command_id = SERVICE_EXEC_START;
2072 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2074 s->main_command = NULL;
2076 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2077 s->control_command = NULL;
2079 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2082 if ((r = service_spawn(s,
2084 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
2089 s->notify_access != NOTIFY_NONE,
2093 if (s->type == SERVICE_SIMPLE) {
2094 /* For simple services we immediately start
2095 * the START_POST binaries. */
2097 service_set_main_pid(s, pid);
2098 service_enter_start_post(s);
2100 } else if (s->type == SERVICE_FORKING) {
2102 /* For forking services we wait until the start
2103 * process exited. */
2105 s->control_pid = pid;
2106 service_set_state(s, SERVICE_START);
2108 } else if (s->type == SERVICE_ONESHOT ||
2109 s->type == SERVICE_DBUS ||
2110 s->type == SERVICE_NOTIFY) {
2112 /* For oneshot services we wait until the start
2113 * process exited, too, but it is our main process. */
2115 /* For D-Bus services we know the main pid right away,
2116 * but wait for the bus name to appear on the
2117 * bus. Notify services are similar. */
2119 service_set_main_pid(s, pid);
2120 service_set_state(s, SERVICE_START);
2122 assert_not_reached("Unknown service type");
2127 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
2128 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2131 static void service_enter_start_pre(Service *s) {
2136 service_unwatch_control_pid(s);
2138 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2139 s->control_command_id = SERVICE_EXEC_START_PRE;
2141 if ((r = service_spawn(s,
2145 !s->permissions_start_only,
2146 !s->root_directory_start_only,
2149 &s->control_pid)) < 0)
2152 service_set_state(s, SERVICE_START_PRE);
2154 service_enter_start(s);
2159 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
2160 service_enter_dead(s, false, true);
2163 static void service_enter_restart(Service *s) {
2168 dbus_error_init(&error);
2171 log_info("Job pending for unit, delaying automatic restart.");
2173 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2177 service_enter_dead(s, true, false);
2179 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
2182 log_debug("%s scheduled restart job.", s->meta.id);
2186 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
2187 service_enter_dead(s, false, false);
2189 dbus_error_free(&error);
2192 static void service_enter_reload(Service *s) {
2197 service_unwatch_control_pid(s);
2199 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2200 s->control_command_id = SERVICE_EXEC_RELOAD;
2202 if ((r = service_spawn(s,
2206 !s->permissions_start_only,
2207 !s->root_directory_start_only,
2210 &s->control_pid)) < 0)
2213 service_set_state(s, SERVICE_RELOAD);
2215 service_enter_running(s, true);
2220 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
2221 s->reload_failure = true;
2222 service_enter_running(s, true);
2225 static void service_run_next_control(Service *s, bool success) {
2229 assert(s->control_command);
2230 assert(s->control_command->command_next);
2235 assert(s->control_command_id != SERVICE_EXEC_START);
2237 s->control_command = s->control_command->command_next;
2238 service_unwatch_control_pid(s);
2240 if ((r = service_spawn(s,
2244 !s->permissions_start_only,
2245 !s->root_directory_start_only,
2246 s->control_command_id == SERVICE_EXEC_START_PRE ||
2247 s->control_command_id == SERVICE_EXEC_STOP_POST,
2249 &s->control_pid)) < 0)
2255 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
2257 if (s->state == SERVICE_START_PRE)
2258 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2259 else if (s->state == SERVICE_STOP)
2260 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2261 else if (s->state == SERVICE_STOP_POST)
2262 service_enter_dead(s, false, true);
2263 else if (s->state == SERVICE_RELOAD) {
2264 s->reload_failure = true;
2265 service_enter_running(s, true);
2267 service_enter_stop(s, false);
2270 static void service_run_next_main(Service *s, bool success) {
2275 assert(s->main_command);
2276 assert(s->main_command->command_next);
2277 assert(s->type == SERVICE_ONESHOT);
2282 s->main_command = s->main_command->command_next;
2283 service_unwatch_main_pid(s);
2285 if ((r = service_spawn(s,
2292 s->notify_access != NOTIFY_NONE,
2296 service_set_main_pid(s, pid);
2301 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2302 service_enter_stop(s, false);
2305 static int service_start(Unit *u) {
2306 Service *s = SERVICE(u);
2310 /* We cannot fulfill this request right now, try again later
2312 if (s->state == SERVICE_STOP ||
2313 s->state == SERVICE_STOP_SIGTERM ||
2314 s->state == SERVICE_STOP_SIGKILL ||
2315 s->state == SERVICE_STOP_POST ||
2316 s->state == SERVICE_FINAL_SIGTERM ||
2317 s->state == SERVICE_FINAL_SIGKILL)
2320 /* Already on it! */
2321 if (s->state == SERVICE_START_PRE ||
2322 s->state == SERVICE_START ||
2323 s->state == SERVICE_START_POST)
2326 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2328 /* Make sure we don't enter a busy loop of some kind. */
2329 if (!ratelimit_test(&s->ratelimit)) {
2330 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
2335 s->main_pid_known = false;
2336 s->main_pid_alien = false;
2337 s->forbid_restart = false;
2339 service_enter_start_pre(s);
2343 static int service_stop(Unit *u) {
2344 Service *s = SERVICE(u);
2348 /* This is a user request, so don't do restarts on this
2350 s->forbid_restart = true;
2353 if (s->state == SERVICE_STOP ||
2354 s->state == SERVICE_STOP_SIGTERM ||
2355 s->state == SERVICE_STOP_SIGKILL ||
2356 s->state == SERVICE_STOP_POST ||
2357 s->state == SERVICE_FINAL_SIGTERM ||
2358 s->state == SERVICE_FINAL_SIGKILL)
2361 /* Don't allow a restart */
2362 if (s->state == SERVICE_AUTO_RESTART) {
2363 service_set_state(s, SERVICE_DEAD);
2367 /* If there's already something running we go directly into
2369 if (s->state == SERVICE_START_PRE ||
2370 s->state == SERVICE_START ||
2371 s->state == SERVICE_START_POST ||
2372 s->state == SERVICE_RELOAD) {
2373 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2377 assert(s->state == SERVICE_RUNNING ||
2378 s->state == SERVICE_EXITED);
2380 service_enter_stop(s, true);
2384 static int service_reload(Unit *u) {
2385 Service *s = SERVICE(u);
2389 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2391 service_enter_reload(s);
2395 static bool service_can_reload(Unit *u) {
2396 Service *s = SERVICE(u);
2400 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2403 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2404 Service *s = SERVICE(u);
2410 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2411 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2413 if (s->control_pid > 0)
2414 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2416 if (s->main_pid_known && s->main_pid > 0)
2417 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2419 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2422 unit_serialize_item(u, f, "status-text", s->status_text);
2424 /* There's a minor uncleanliness here: if there are multiple
2425 * commands attached here, we will start from the first one
2427 if (s->control_command_id >= 0)
2428 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2430 if (s->socket_fd >= 0) {
2433 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2436 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2439 if (s->main_exec_status.pid > 0) {
2440 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2441 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2442 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2444 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2445 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2446 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2453 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2454 Service *s = SERVICE(u);
2461 if (streq(key, "state")) {
2464 if ((state = service_state_from_string(value)) < 0)
2465 log_debug("Failed to parse state value %s", value);
2467 s->deserialized_state = state;
2468 } else if (streq(key, "failure")) {
2471 if ((b = parse_boolean(value)) < 0)
2472 log_debug("Failed to parse failure value %s", value);
2474 s->failure = b || s->failure;
2475 } else if (streq(key, "control-pid")) {
2478 if (parse_pid(value, &pid) < 0)
2479 log_debug("Failed to parse control-pid value %s", value);
2481 s->control_pid = pid;
2482 } else if (streq(key, "main-pid")) {
2485 if (parse_pid(value, &pid) < 0)
2486 log_debug("Failed to parse main-pid value %s", value);
2488 service_set_main_pid(s, (pid_t) pid);
2489 } else if (streq(key, "main-pid-known")) {
2492 if ((b = parse_boolean(value)) < 0)
2493 log_debug("Failed to parse main-pid-known value %s", value);
2495 s->main_pid_known = b;
2496 } else if (streq(key, "status-text")) {
2499 if ((t = strdup(value))) {
2500 free(s->status_text);
2504 } else if (streq(key, "control-command")) {
2505 ServiceExecCommand id;
2507 if ((id = service_exec_command_from_string(value)) < 0)
2508 log_debug("Failed to parse exec-command value %s", value);
2510 s->control_command_id = id;
2511 s->control_command = s->exec_command[id];
2513 } else if (streq(key, "socket-fd")) {
2516 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2517 log_debug("Failed to parse socket-fd value %s", value);
2520 if (s->socket_fd >= 0)
2521 close_nointr_nofail(s->socket_fd);
2522 s->socket_fd = fdset_remove(fds, fd);
2524 } else if (streq(key, "main-exec-status-pid")) {
2527 if (parse_pid(value, &pid) < 0)
2528 log_debug("Failed to parse main-exec-status-pid value %s", value);
2530 s->main_exec_status.pid = pid;
2531 } else if (streq(key, "main-exec-status-code")) {
2534 if (safe_atoi(value, &i) < 0)
2535 log_debug("Failed to parse main-exec-status-code value %s", value);
2537 s->main_exec_status.code = i;
2538 } else if (streq(key, "main-exec-status-status")) {
2541 if (safe_atoi(value, &i) < 0)
2542 log_debug("Failed to parse main-exec-status-status value %s", value);
2544 s->main_exec_status.status = i;
2545 } else if (streq(key, "main-exec-status-start"))
2546 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2547 else if (streq(key, "main-exec-status-exit"))
2548 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2550 log_debug("Unknown serialization key '%s'", key);
2555 static UnitActiveState service_active_state(Unit *u) {
2558 return state_translation_table[SERVICE(u)->state];
2561 static const char *service_sub_state_to_string(Unit *u) {
2564 return service_state_to_string(SERVICE(u)->state);
2567 static bool service_check_gc(Unit *u) {
2568 Service *s = SERVICE(u);
2572 /* Never clean up services that still have a process around,
2573 * even if the service is formally dead. */
2574 if (cgroup_good(s) > 0 ||
2575 main_pid_good(s) > 0 ||
2576 control_pid_good(s) > 0)
2579 #ifdef HAVE_SYSV_COMPAT
2587 static bool service_check_snapshot(Unit *u) {
2588 Service *s = SERVICE(u);
2592 return !s->got_socket_fd;
2595 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2596 Service *s = SERVICE(u);
2602 if (!s->meta.fragment_path)
2603 success = is_clean_exit_lsb(code, status);
2605 success = is_clean_exit(code, status);
2607 if (s->main_pid == pid) {
2608 /* Forking services may occasionally move to a new PID.
2609 * As long as they update the PID file before exiting the old
2610 * PID, they're fine. */
2611 if (service_load_pid_file(s, false) == 0)
2615 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2617 /* If this is not a forking service than the main
2618 * process got started and hence we copy the exit
2619 * status so that it is recorded both as main and as
2620 * control process exit status */
2621 if (s->main_command) {
2622 s->main_command->exec_status = s->main_exec_status;
2624 if (s->main_command->ignore)
2628 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2629 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
2630 s->failure = s->failure || !success;
2632 if (s->main_command &&
2633 s->main_command->command_next &&
2636 /* There is another command to *
2637 * execute, so let's do that. */
2639 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2640 service_run_next_main(s, success);
2644 /* The service exited, so the service is officially
2646 s->main_command = NULL;
2650 case SERVICE_START_POST:
2651 case SERVICE_RELOAD:
2653 /* Need to wait until the operation is
2658 if (s->type == SERVICE_ONESHOT) {
2659 /* This was our main goal, so let's go on */
2661 service_enter_start_post(s);
2663 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2666 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2671 case SERVICE_RUNNING:
2672 service_enter_running(s, success);
2675 case SERVICE_STOP_SIGTERM:
2676 case SERVICE_STOP_SIGKILL:
2678 if (!control_pid_good(s))
2679 service_enter_stop_post(s, success);
2681 /* If there is still a control process, wait for that first */
2685 assert_not_reached("Uh, main process died at wrong time.");
2689 } else if (s->control_pid == pid) {
2693 if (s->control_command) {
2694 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2696 if (s->control_command->ignore)
2700 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2701 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2702 s->failure = s->failure || !success;
2704 if (s->control_command &&
2705 s->control_command->command_next &&
2708 /* There is another command to *
2709 * execute, so let's do that. */
2711 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2712 service_run_next_control(s, success);
2715 /* No further commands for this step, so let's
2716 * figure out what to do next */
2718 s->control_command = NULL;
2719 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2721 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2725 case SERVICE_START_PRE:
2727 service_enter_start(s);
2729 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2733 assert(s->type == SERVICE_FORKING);
2735 /* Let's try to load the pid
2736 * file here if we can. We
2737 * ignore the return value,
2738 * since the PID file might
2739 * actually be created by a
2740 * START_POST script */
2743 service_load_pid_file(s, !s->exec_command[SERVICE_EXEC_START_POST]);
2744 service_search_main_pid(s);
2746 service_enter_start_post(s);
2748 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2752 case SERVICE_START_POST:
2754 service_load_pid_file(s, true);
2755 service_search_main_pid(s);
2758 s->reload_failure = !success;
2759 service_enter_running(s, true);
2762 case SERVICE_RELOAD:
2764 service_load_pid_file(s, true);
2765 service_search_main_pid(s);
2768 s->reload_failure = !success;
2769 service_enter_running(s, true);
2773 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2776 case SERVICE_STOP_SIGTERM:
2777 case SERVICE_STOP_SIGKILL:
2778 if (main_pid_good(s) <= 0)
2779 service_enter_stop_post(s, success);
2781 /* If there is still a service
2782 * process around, wait until
2783 * that one quit, too */
2786 case SERVICE_STOP_POST:
2787 case SERVICE_FINAL_SIGTERM:
2788 case SERVICE_FINAL_SIGKILL:
2789 service_enter_dead(s, success, true);
2793 assert_not_reached("Uh, control process died at wrong time.");
2798 /* Notify clients about changed exit status */
2799 unit_add_to_dbus_queue(u);
2802 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2803 Service *s = SERVICE(u);
2806 assert(elapsed == 1);
2808 assert(w == &s->timer_watch);
2812 case SERVICE_START_PRE:
2814 log_warning("%s operation timed out. Terminating.", u->meta.id);
2815 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2818 case SERVICE_START_POST:
2819 log_warning("%s operation timed out. Stopping.", u->meta.id);
2820 service_enter_stop(s, false);
2823 case SERVICE_RELOAD:
2824 log_warning("%s operation timed out. Stopping.", u->meta.id);
2825 s->reload_failure = true;
2826 service_enter_running(s, true);
2830 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2831 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2834 case SERVICE_STOP_SIGTERM:
2835 if (s->exec_context.send_sigkill) {
2836 log_warning("%s stopping timed out. Killing.", u->meta.id);
2837 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2839 log_warning("%s stopping timed out. Skipping SIGKILL.", u->meta.id);
2840 service_enter_stop_post(s, false);
2845 case SERVICE_STOP_SIGKILL:
2846 /* Uh, we sent a SIGKILL and it is still not gone?
2847 * Must be something we cannot kill, so let's just be
2848 * weirded out and continue */
2850 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2851 service_enter_stop_post(s, false);
2854 case SERVICE_STOP_POST:
2855 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2856 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2859 case SERVICE_FINAL_SIGTERM:
2860 if (s->exec_context.send_sigkill) {
2861 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2862 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2864 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->meta.id);
2865 service_enter_dead(s, false, true);
2870 case SERVICE_FINAL_SIGKILL:
2871 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
2872 service_enter_dead(s, false, true);
2875 case SERVICE_AUTO_RESTART:
2876 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
2877 service_enter_restart(s);
2881 assert_not_reached("Timeout at wrong time.");
2885 static void service_cgroup_notify_event(Unit *u) {
2886 Service *s = SERVICE(u);
2890 log_debug("%s: cgroup is empty", u->meta.id);
2894 /* Waiting for SIGCHLD is usually more interesting,
2895 * because it includes return codes/signals. Which is
2896 * why we ignore the cgroup events for most cases,
2897 * except when we don't know pid which to expect the
2900 case SERVICE_RUNNING:
2901 service_enter_running(s, true);
2904 case SERVICE_STOP_SIGTERM:
2905 case SERVICE_STOP_SIGKILL:
2907 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2908 service_enter_stop_post(s, true);
2912 case SERVICE_FINAL_SIGTERM:
2913 case SERVICE_FINAL_SIGKILL:
2914 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2915 service_enter_dead(s, true, true);
2924 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
2925 Service *s = SERVICE(u);
2930 if (s->notify_access == NOTIFY_NONE) {
2931 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2932 u->meta.id, (unsigned long) pid);
2936 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2937 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2938 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2942 log_debug("%s: Got message", u->meta.id);
2944 /* Interpret MAINPID= */
2945 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2946 (s->state == SERVICE_START ||
2947 s->state == SERVICE_START_POST ||
2948 s->state == SERVICE_RUNNING ||
2949 s->state == SERVICE_RELOAD)) {
2951 if (parse_pid(e + 8, &pid) < 0)
2952 log_warning("Failed to parse notification message %s", e);
2954 log_debug("%s: got %s", u->meta.id, e);
2955 service_set_main_pid(s, pid);
2959 /* Interpret READY= */
2960 if (s->type == SERVICE_NOTIFY &&
2961 s->state == SERVICE_START &&
2962 strv_find(tags, "READY=1")) {
2963 log_debug("%s: got READY=1", u->meta.id);
2965 service_enter_start_post(s);
2968 /* Interpret STATUS= */
2969 if ((e = strv_find_prefix(tags, "STATUS="))) {
2973 if (!(t = strdup(e+7))) {
2974 log_error("Failed to allocate string.");
2978 log_debug("%s: got %s", u->meta.id, e);
2980 free(s->status_text);
2983 free(s->status_text);
2984 s->status_text = NULL;
2989 /* Notify clients about changed status or main pid */
2990 unit_add_to_dbus_queue(u);
2993 #ifdef HAVE_SYSV_COMPAT
2996 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3000 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3001 r = errno == ENOENT ? 0 : -errno;
3006 char l[LINE_MAX], *t;
3007 char **parsed = NULL;
3009 if (!fgets(l, sizeof(l), f)) {
3014 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3019 if (*t != '$' && *t != '<')
3022 parsed = strv_split(t,WHITESPACE);
3023 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3024 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3027 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3029 if ((u = manager_get_unit(mgr, facility)) && (u->meta.type == UNIT_TARGET)) {
3031 char *dep = NULL, *name, **j;
3033 STRV_FOREACH (j, parsed+1) {
3042 if (sysv_translate_facility(name, NULL, &dep) < 0)
3045 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3060 static int service_enumerate(Manager *m) {
3064 char *path = NULL, *fpath = NULL, *name = NULL;
3065 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3072 if (m->running_as != MANAGER_SYSTEM)
3075 zero(runlevel_services);
3077 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3078 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3082 path = join(*p, "/", rcnd_table[i].path, NULL);
3091 if (!(d = opendir(path))) {
3092 if (errno != ENOENT)
3093 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3098 while ((de = readdir(d))) {
3101 if (ignore_file(de->d_name))
3104 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3107 if (strlen(de->d_name) < 4)
3110 a = undecchar(de->d_name[1]);
3111 b = undecchar(de->d_name[2]);
3117 fpath = join(path, "/", de->d_name, NULL);
3123 if (access(fpath, X_OK) < 0) {
3125 if (errno != ENOENT)
3126 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3132 if (!(name = sysv_translate_name(de->d_name + 3))) {
3137 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3138 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3142 if (de->d_name[0] == 'S') {
3144 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3145 SERVICE(service)->sysv_start_priority_from_rcnd =
3146 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3148 SERVICE(service)->sysv_enabled = true;
3151 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3154 if ((r = set_put(runlevel_services[i], service)) < 0)
3157 } else if (de->d_name[0] == 'K' &&
3158 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3159 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3161 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3164 if ((r = set_put(shutdown_services, service)) < 0)
3170 /* Now we loaded all stubs and are aware of the lowest
3171 start-up priority for all services, not let's actually load
3172 the services, this will also tell us which services are
3173 actually native now */
3174 manager_dispatch_load_queue(m);
3176 /* If this is a native service, rely on native ways to pull in
3177 * a service, don't pull it in via sysv rcN.d links. */
3178 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3179 SET_FOREACH(service, runlevel_services[i], j) {
3180 service = unit_follow_merge(service);
3182 if (service->meta.fragment_path)
3185 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3189 /* We honour K links only for halt/reboot. For the normal
3190 * runlevels we assume the stop jobs will be implicitly added
3191 * by the core logic. Also, we don't really distinguish here
3192 * between the runlevels 0 and 6 and just add them to the
3193 * special shutdown target. On SUSE the boot.d/ runlevel is
3194 * also used for shutdown, so we add links for that too to the
3195 * shutdown target.*/
3196 SET_FOREACH(service, shutdown_services, j) {
3197 service = unit_follow_merge(service);
3199 if (service->meta.fragment_path)
3202 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3209 sysv_facility_in_insserv_conf (m);
3217 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3218 set_free(runlevel_services[i]);
3219 set_free(shutdown_services);
3228 static void service_bus_name_owner_change(
3231 const char *old_owner,
3232 const char *new_owner) {
3234 Service *s = SERVICE(u);
3239 assert(streq(s->bus_name, name));
3240 assert(old_owner || new_owner);
3242 if (old_owner && new_owner)
3243 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3245 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3247 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3249 s->bus_name_good = !!new_owner;
3251 if (s->type == SERVICE_DBUS) {
3253 /* service_enter_running() will figure out what to
3255 if (s->state == SERVICE_RUNNING)
3256 service_enter_running(s, true);
3257 else if (s->state == SERVICE_START && new_owner)
3258 service_enter_start_post(s);
3260 } else if (new_owner &&
3262 (s->state == SERVICE_START ||
3263 s->state == SERVICE_START_POST ||
3264 s->state == SERVICE_RUNNING ||
3265 s->state == SERVICE_RELOAD)) {
3267 /* Try to acquire PID from bus service */
3268 log_debug("Trying to acquire PID from D-Bus name...");
3270 bus_query_pid(u->meta.manager, name);
3274 static void service_bus_query_pid_done(
3279 Service *s = SERVICE(u);
3284 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3286 if (s->main_pid <= 0 &&
3287 (s->state == SERVICE_START ||
3288 s->state == SERVICE_START_POST ||
3289 s->state == SERVICE_RUNNING ||
3290 s->state == SERVICE_RELOAD))
3291 service_set_main_pid(s, pid);
3294 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3298 /* This is called by the socket code when instantiating a new
3299 * service for a stream socket and the socket needs to be
3302 if (s->meta.load_state != UNIT_LOADED)
3305 if (s->socket_fd >= 0)
3308 if (s->state != SERVICE_DEAD)
3312 s->got_socket_fd = true;
3313 s->accept_socket = sock;
3318 static void service_reset_failed(Unit *u) {
3319 Service *s = SERVICE(u);
3323 if (s->state == SERVICE_FAILED)
3324 service_set_state(s, SERVICE_DEAD);
3329 static bool service_need_daemon_reload(Unit *u) {
3330 Service *s = SERVICE(u);
3334 #ifdef HAVE_SYSV_COMPAT
3339 if (stat(s->sysv_path, &st) < 0)
3340 /* What, cannot access this anymore? */
3343 if (s->sysv_mtime > 0 &&
3344 timespec_load(&st.st_mtim) != s->sysv_mtime)
3352 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3353 Service *s = SERVICE(u);
3355 Set *pid_set = NULL;
3359 if (s->main_pid <= 0 && who == KILL_MAIN) {
3360 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3364 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3365 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3369 if (who == KILL_CONTROL || who == KILL_ALL)
3370 if (s->control_pid > 0)
3371 if (kill(s->control_pid, signo) < 0)
3374 if (who == KILL_MAIN || who == KILL_ALL)
3375 if (s->main_pid > 0)
3376 if (kill(s->main_pid, signo) < 0)
3379 if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
3382 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3385 /* Exclude the control/main pid from being killed via the cgroup */
3386 if (s->control_pid > 0)
3387 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3392 if (s->main_pid > 0)
3393 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3398 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
3399 if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3410 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3411 [SERVICE_DEAD] = "dead",
3412 [SERVICE_START_PRE] = "start-pre",
3413 [SERVICE_START] = "start",
3414 [SERVICE_START_POST] = "start-post",
3415 [SERVICE_RUNNING] = "running",
3416 [SERVICE_EXITED] = "exited",
3417 [SERVICE_RELOAD] = "reload",
3418 [SERVICE_STOP] = "stop",
3419 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3420 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3421 [SERVICE_STOP_POST] = "stop-post",
3422 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3423 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3424 [SERVICE_FAILED] = "failed",
3425 [SERVICE_AUTO_RESTART] = "auto-restart",
3428 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3430 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3431 [SERVICE_RESTART_NO] = "no",
3432 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3433 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3434 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3435 [SERVICE_RESTART_ALWAYS] = "always"
3438 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3440 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3441 [SERVICE_SIMPLE] = "simple",
3442 [SERVICE_FORKING] = "forking",
3443 [SERVICE_ONESHOT] = "oneshot",
3444 [SERVICE_DBUS] = "dbus",
3445 [SERVICE_NOTIFY] = "notify"
3448 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3450 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3451 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3452 [SERVICE_EXEC_START] = "ExecStart",
3453 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3454 [SERVICE_EXEC_RELOAD] = "ExecReload",
3455 [SERVICE_EXEC_STOP] = "ExecStop",
3456 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3459 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3461 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3462 [NOTIFY_NONE] = "none",
3463 [NOTIFY_MAIN] = "main",
3464 [NOTIFY_ALL] = "all"
3467 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3469 const UnitVTable service_vtable = {
3470 .suffix = ".service",
3475 .show_status = true,
3477 .init = service_init,
3478 .done = service_done,
3479 .load = service_load,
3481 .coldplug = service_coldplug,
3483 .dump = service_dump,
3485 .start = service_start,
3486 .stop = service_stop,
3487 .reload = service_reload,
3489 .can_reload = service_can_reload,
3491 .kill = service_kill,
3493 .serialize = service_serialize,
3494 .deserialize_item = service_deserialize_item,
3496 .active_state = service_active_state,
3497 .sub_state_to_string = service_sub_state_to_string,
3499 .check_gc = service_check_gc,
3500 .check_snapshot = service_check_snapshot,
3502 .sigchld_event = service_sigchld_event,
3503 .timer_event = service_timer_event,
3505 .reset_failed = service_reset_failed,
3507 .need_daemon_reload = service_need_daemon_reload,
3509 .cgroup_notify_empty = service_cgroup_notify_event,
3510 .notify_message = service_notify_message,
3512 .bus_name_owner_change = service_bus_name_owner_change,
3513 .bus_query_pid_done = service_bus_query_pid_done,
3515 .bus_interface = "org.freedesktop.systemd1.Service",
3516 .bus_message_handler = bus_service_message_handler,
3517 .bus_invalidating_properties = bus_service_invalidating_properties,
3519 #ifdef HAVE_SYSV_COMPAT
3520 .enumerate = service_enumerate