1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
29 #include "load-fragment.h"
30 #include "load-dropin.h"
33 #include "unit-name.h"
34 #include "dbus-service.h"
36 #include "bus-errors.h"
38 #define COMMENTS "#;\n"
39 #define NEWLINES "\n\r"
41 #ifdef HAVE_SYSV_COMPAT
43 #define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE)
45 typedef enum RunlevelType {
54 const RunlevelType type;
56 /* Standard SysV runlevels for start-up */
57 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
64 /* SUSE style boot.d */
65 { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
68 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE)
69 /* Debian style rcS.d */
70 { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT },
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
75 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
84 #define RUNLEVELS_UP "12345"
85 /* #define RUNLEVELS_DOWN "06" */
86 /* #define RUNLEVELS_BOOT "bBsS" */
89 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
90 [SERVICE_DEAD] = UNIT_INACTIVE,
91 [SERVICE_START_PRE] = UNIT_ACTIVATING,
92 [SERVICE_START] = UNIT_ACTIVATING,
93 [SERVICE_START_POST] = UNIT_ACTIVATING,
94 [SERVICE_RUNNING] = UNIT_ACTIVE,
95 [SERVICE_EXITED] = UNIT_ACTIVE,
96 [SERVICE_RELOAD] = UNIT_RELOADING,
97 [SERVICE_STOP] = UNIT_DEACTIVATING,
98 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
99 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
100 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
101 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
102 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
103 [SERVICE_FAILED] = UNIT_FAILED,
104 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
107 static void service_init(Unit *u) {
108 Service *s = SERVICE(u);
111 assert(u->meta.load_state == UNIT_STUB);
113 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
114 s->restart_usec = DEFAULT_RESTART_USEC;
115 s->timer_watch.type = WATCH_INVALID;
116 #ifdef HAVE_SYSV_COMPAT
117 s->sysv_start_priority = -1;
121 exec_context_init(&s->exec_context);
123 RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
125 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
128 static void service_unwatch_control_pid(Service *s) {
131 if (s->control_pid <= 0)
134 unit_unwatch_pid(UNIT(s), s->control_pid);
138 static void service_unwatch_main_pid(Service *s) {
141 if (s->main_pid <= 0)
144 unit_unwatch_pid(UNIT(s), s->main_pid);
148 static int service_set_main_pid(Service *s, pid_t pid) {
159 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid())
160 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
161 s->meta.id, (unsigned long) pid);
164 s->main_pid_known = true;
166 exec_status_start(&s->main_exec_status, pid);
171 static void service_close_socket_fd(Service *s) {
174 if (s->socket_fd < 0)
177 close_nointr_nofail(s->socket_fd);
181 static void service_connection_unref(Service *s) {
184 if (!s->accept_socket)
187 socket_connection_unref(s->accept_socket);
188 s->accept_socket = NULL;
191 static void service_done(Unit *u) {
192 Service *s = SERVICE(u);
199 #ifdef HAVE_SYSV_COMPAT
203 free(s->sysv_runlevels);
204 s->sysv_runlevels = NULL;
207 free(s->status_text);
208 s->status_text = NULL;
210 exec_context_done(&s->exec_context);
211 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
212 s->control_command = NULL;
214 /* This will leak a process, but at least no memory or any of
216 service_unwatch_main_pid(s);
217 service_unwatch_control_pid(s);
220 unit_unwatch_bus_name(UNIT(u), s->bus_name);
225 service_close_socket_fd(s);
226 service_connection_unref(s);
228 set_free(s->configured_sockets);
230 unit_unwatch_timer(u, &s->timer_watch);
233 #ifdef HAVE_SYSV_COMPAT
234 static char *sysv_translate_name(const char *name) {
237 if (!(r = new(char, strlen(name) + sizeof(".service"))))
240 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
241 if (endswith(name, ".sh"))
242 /* Drop Debian-style .sh suffix */
243 strcpy(stpcpy(r, name) - 3, ".service");
246 if (startswith(name, "boot."))
247 /* Drop SuSE-style boot. prefix */
248 strcpy(stpcpy(r, name + 5), ".service");
251 if (startswith(name, "@"))
252 /* Drop Arch-style background prefix */
253 strcpy(stpcpy(r, name + 1), ".service");
255 #ifdef TARGET_FRUGALWARE
256 if (startswith(name, "rc."))
257 /* Drop Frugalware-style rc. prefix */
258 strcpy(stpcpy(r, name + 3), ".service");
261 /* Normal init scripts */
262 strcpy(stpcpy(r, name), ".service");
267 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
269 /* We silently ignore the $ prefix here. According to the LSB
270 * spec it simply indicates whether something is a
271 * standardized name or a distribution-specific one. Since we
272 * just follow what already exists and do not introduce new
273 * uses or names we don't care who introduced a new name. */
275 static const char * const table[] = {
276 /* LSB defined facilities */
277 "local_fs", SPECIAL_LOCAL_FS_TARGET,
278 "network", SPECIAL_NETWORK_TARGET,
279 "named", SPECIAL_NSS_LOOKUP_TARGET,
280 "portmap", SPECIAL_RPCBIND_TARGET,
281 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
282 "syslog", SPECIAL_SYSLOG_TARGET,
283 "time", SPECIAL_RTC_SET_TARGET,
285 /* common extensions */
286 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
287 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
290 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
291 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
295 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
296 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
297 "httpd", SPECIAL_HTTP_DAEMON_TARGET,
301 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
312 n = *name == '$' ? name + 1 : name;
314 for (i = 0; i < ELEMENTSOF(table); i += 2) {
316 if (!streq(table[i], n))
322 if (!(r = strdup(table[i+1])))
328 /* If we don't know this name, fallback heuristics to figure
329 * out whether something is a target or a service alias. */
332 if (!unit_prefix_is_valid(n))
335 /* Facilities starting with $ are most likely targets */
336 r = unit_name_build(n, NULL, ".target");
337 } else if (filename && streq(name, filename))
338 /* Names equalling the file name of the services are redundant */
341 /* Everything else we assume to be normal service names */
342 r = sysv_translate_name(n);
355 static int sysv_fix_order(Service *s) {
361 if (s->sysv_start_priority < 0)
364 /* For each pair of services where at least one lacks a LSB
365 * header, we use the start priority value to order things. */
367 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
370 bool special_s, special_t;
372 t = (Service*) other;
377 if (t->meta.load_state != UNIT_LOADED)
380 if (t->sysv_start_priority < 0)
383 /* If both units have modern headers we don't care
384 * about the priorities */
385 if ((s->meta.fragment_path || s->sysv_has_lsb) &&
386 (t->meta.fragment_path || t->sysv_has_lsb))
389 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
390 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
392 if (special_t && !special_s)
394 else if (special_s && !special_t)
396 else if (t->sysv_start_priority < s->sysv_start_priority)
398 else if (t->sysv_start_priority > s->sysv_start_priority)
403 /* FIXME: Maybe we should compare the name here lexicographically? */
405 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
412 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
415 if (!(c = new0(ExecCommand, 1)))
418 if (!(c->path = strdup(path))) {
423 if (!(c->argv = strv_new(path, arg1, NULL))) {
432 static int sysv_exec_commands(Service *s) {
436 assert(s->sysv_path);
438 if (!(c = exec_command_new(s->sysv_path, "start")))
440 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
442 if (!(c = exec_command_new(s->sysv_path, "stop")))
444 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
446 if (!(c = exec_command_new(s->sysv_path, "reload")))
448 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
453 static int service_load_sysv_path(Service *s, const char *path) {
464 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
471 if (!(f = fopen(path, "re"))) {
472 r = errno == ENOENT ? 0 : -errno;
477 if (!(s->sysv_path = strdup(path))) {
483 char l[LINE_MAX], *t;
485 if (!fgets(l, sizeof(l), f)) {
490 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
500 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
502 s->sysv_has_lsb = true;
506 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
512 t += strspn(t, WHITESPACE);
514 if (state == NORMAL) {
516 /* Try to parse Red Hat style chkconfig headers */
518 if (startswith_no_case(t, "chkconfig:")) {
520 char runlevels[16], *k;
524 if (sscanf(t+10, "%15s %i %*i",
526 &start_priority) != 2) {
528 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
532 /* A start priority gathered from the
533 * symlink farms is preferred over the
534 * data from the LSB header. */
535 if (start_priority < 0 || start_priority > 99)
536 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
537 else if (s->sysv_start_priority < 0)
538 s->sysv_start_priority = start_priority;
540 char_array_0(runlevels);
541 k = delete_chars(runlevels, WHITESPACE "-");
546 if (!(d = strdup(k))) {
551 free(s->sysv_runlevels);
552 s->sysv_runlevels = d;
555 } else if (startswith_no_case(t, "description:")) {
557 size_t k = strlen(t);
561 if (t[k-1] == '\\') {
566 if ((j = strstrip(t+12)) && *j) {
567 if (!(d = strdup(j))) {
574 free(chkconfig_description);
575 chkconfig_description = d;
577 } else if (startswith_no_case(t, "pidfile:")) {
584 if (!path_is_absolute(fn)) {
585 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
589 if (!(fn = strdup(fn))) {
598 } else if (state == DESCRIPTION) {
600 /* Try to parse Red Hat style description
603 size_t k = strlen(t);
611 if ((j = strstrip(t)) && *j) {
614 if (chkconfig_description)
615 asprintf(&d, "%s %s", chkconfig_description, j);
624 free(chkconfig_description);
625 chkconfig_description = d;
628 } else if (state == LSB || state == LSB_DESCRIPTION) {
630 if (startswith_no_case(t, "Provides:")) {
636 FOREACH_WORD_QUOTED(w, z, t+9, i) {
639 if (!(n = strndup(w, z))) {
644 r = sysv_translate_facility(n, file_name_from_path(path), &m);
653 if (unit_name_to_type(m) == UNIT_SERVICE)
654 r = unit_add_name(u, m);
656 r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true);
658 if (s->sysv_enabled) {
661 if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0)
667 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
672 } else if (startswith_no_case(t, "Required-Start:") ||
673 startswith_no_case(t, "Should-Start:") ||
674 startswith_no_case(t, "X-Start-Before:") ||
675 startswith_no_case(t, "X-Start-After:")) {
681 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
684 if (!(n = strndup(w, z))) {
689 r = sysv_translate_facility(n, file_name_from_path(path), &m);
692 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
702 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
705 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
709 } else if (startswith_no_case(t, "Default-Start:")) {
714 k = delete_chars(t+14, WHITESPACE "-");
717 if (!(d = strdup(k))) {
722 free(s->sysv_runlevels);
723 s->sysv_runlevels = d;
726 } else if (startswith_no_case(t, "Description:")) {
729 state = LSB_DESCRIPTION;
731 if ((j = strstrip(t+12)) && *j) {
732 if (!(d = strdup(j))) {
739 free(long_description);
740 long_description = d;
742 } else if (startswith_no_case(t, "Short-Description:")) {
747 if ((j = strstrip(t+18)) && *j) {
748 if (!(d = strdup(j))) {
755 free(short_description);
756 short_description = d;
758 } else if (startswith_no_case(t, "X-Interactive:")) {
761 if ((b = parse_boolean(strstrip(t+14))) < 0) {
762 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line);
767 s->exec_context.std_input = EXEC_INPUT_TTY;
769 s->exec_context.std_input = EXEC_INPUT_NULL;
771 } else if (state == LSB_DESCRIPTION) {
773 if (startswith(l, "#\t") || startswith(l, "# ")) {
776 if ((j = strstrip(t)) && *j) {
779 if (long_description)
780 asprintf(&d, "%s %s", long_description, t);
789 free(long_description);
790 long_description = d;
799 if ((r = sysv_exec_commands(s)) < 0)
802 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
803 /* If there a runlevels configured for this service
804 * but none of the standard ones, then we assume this
805 * is some special kind of service (which might be
806 * needed for early boot) and don't create any links
809 s->meta.default_dependencies = false;
811 /* Don't timeout special services during boot (like fsck) */
814 s->timeout_usec = DEFAULT_SYSV_TIMEOUT_USEC;
816 /* Special setting for all SysV services */
817 s->type = SERVICE_FORKING;
818 s->remain_after_exit = true;
819 s->restart = SERVICE_RESTART_NO;
820 s->exec_context.std_output =
821 (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY)
822 ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
823 s->exec_context.kill_mode = KILL_PROCESS_GROUP;
825 /* We use the long description only if
826 * no short description is set. */
828 if (short_description)
829 description = short_description;
830 else if (chkconfig_description)
831 description = chkconfig_description;
832 else if (long_description)
833 description = long_description;
840 if (!(d = strappend("LSB: ", description))) {
845 u->meta.description = d;
848 u->meta.load_state = UNIT_LOADED;
856 free(short_description);
857 free(long_description);
858 free(chkconfig_description);
863 static int service_load_sysv_name(Service *s, const char *name) {
869 /* For SysV services we strip the boot.*, rc.* and *.sh
870 * prefixes/suffixes. */
871 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
872 if (endswith(name, ".sh.service"))
877 if (startswith(name, "boot."))
881 #ifdef TARGET_FRUGALWARE
882 if (startswith(name, "rc."))
886 STRV_FOREACH(p, s->meta.manager->lookup_paths.sysvinit_path) {
890 if (asprintf(&path, "%s/%s", *p, name) < 0)
893 assert(endswith(path, ".service"));
894 path[strlen(path)-8] = 0;
896 r = service_load_sysv_path(s, path);
898 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU)
899 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
900 /* Try Debian style *.sh source'able init scripts */
902 r = service_load_sysv_path(s, path);
908 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
909 /* Try SUSE style boot.* init scripts */
911 if (asprintf(&path, "%s/boot.%s", *p, name) < 0)
914 /* Drop .service suffix */
915 path[strlen(path)-8] = 0;
916 r = service_load_sysv_path(s, path);
921 #ifdef TARGET_FRUGALWARE
922 if (r >= 0 && s->meta.load_state == UNIT_STUB) {
923 /* Try Frugalware style rc.* init scripts */
925 if (asprintf(&path, "%s/rc.%s", *p, name) < 0)
928 /* Drop .service suffix */
929 path[strlen(path)-8] = 0;
930 r = service_load_sysv_path(s, path);
938 if ((s->meta.load_state != UNIT_STUB))
945 static int service_load_sysv(Service *s) {
952 /* Load service data from SysV init scripts, preferably with
955 if (strv_isempty(s->meta.manager->lookup_paths.sysvinit_path))
958 if ((t = s->meta.id))
959 if ((r = service_load_sysv_name(s, t)) < 0)
962 if (s->meta.load_state == UNIT_STUB)
963 SET_FOREACH(t, s->meta.names, i) {
967 if ((r = service_load_sysv_name(s, t)) < 0)
970 if (s->meta.load_state != UNIT_STUB)
978 static int fsck_fix_order(Service *s) {
984 if (s->fsck_passno <= 0)
987 /* For each pair of services where both have an fsck priority
988 * we order things based on it. */
990 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
994 t = (Service*) other;
999 if (t->meta.load_state != UNIT_LOADED)
1002 if (t->fsck_passno <= 0)
1005 if (t->fsck_passno < s->fsck_passno)
1007 else if (t->fsck_passno > s->fsck_passno)
1012 if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1019 static int service_verify(Service *s) {
1022 if (s->meta.load_state != UNIT_LOADED)
1025 if (!s->exec_command[SERVICE_EXEC_START]) {
1026 log_error("%s lacks ExecStart setting. Refusing.", s->meta.id);
1030 if (s->type != SERVICE_ONESHOT &&
1031 s->exec_command[SERVICE_EXEC_START]->command_next) {
1032 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s->meta.id);
1036 if (s->type == SERVICE_DBUS && !s->bus_name) {
1037 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s->meta.id);
1041 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
1042 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
1049 static int service_add_default_dependencies(Service *s) {
1054 /* Add a number of automatic dependencies useful for the
1055 * majority of services. */
1057 /* First, pull in base system */
1058 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
1060 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1063 } else if (s->meta.manager->running_as == MANAGER_USER) {
1065 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1069 /* Second, activate normal shutdown */
1070 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1073 static int service_load(Unit *u) {
1075 Service *s = SERVICE(u);
1079 /* Load a .service file */
1080 if ((r = unit_load_fragment(u)) < 0)
1083 #ifdef HAVE_SYSV_COMPAT
1084 /* Load a classic init script as a fallback, if we couldn't find anything */
1085 if (u->meta.load_state == UNIT_STUB)
1086 if ((r = service_load_sysv(s)) < 0)
1090 /* Still nothing found? Then let's give up */
1091 if (u->meta.load_state == UNIT_STUB)
1094 /* We were able to load something, then let's add in the
1095 * dropin directories. */
1096 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1099 /* This is a new unit? Then let's add in some extras */
1100 if (u->meta.load_state == UNIT_LOADED) {
1101 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1104 if ((r = unit_add_default_cgroups(u)) < 0)
1107 #ifdef HAVE_SYSV_COMPAT
1108 if ((r = sysv_fix_order(s)) < 0)
1112 if ((r = fsck_fix_order(s)) < 0)
1116 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1119 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1120 s->notify_access = NOTIFY_MAIN;
1122 if (s->type == SERVICE_DBUS || s->bus_name)
1123 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_TARGET, NULL, true)) < 0)
1126 if (s->meta.default_dependencies)
1127 if ((r = service_add_default_dependencies(s)) < 0)
1131 return service_verify(s);
1134 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1136 ServiceExecCommand c;
1137 Service *s = SERVICE(u);
1138 const char *prefix2;
1143 p2 = strappend(prefix, "\t");
1144 prefix2 = p2 ? p2 : prefix;
1147 "%sService State: %s\n"
1148 "%sPermissionsStartOnly: %s\n"
1149 "%sRootDirectoryStartOnly: %s\n"
1150 "%sRemainAfterExit: %s\n"
1153 "%sNotifyAccess: %s\n",
1154 prefix, service_state_to_string(s->state),
1155 prefix, yes_no(s->permissions_start_only),
1156 prefix, yes_no(s->root_directory_start_only),
1157 prefix, yes_no(s->remain_after_exit),
1158 prefix, service_type_to_string(s->type),
1159 prefix, service_restart_to_string(s->restart),
1160 prefix, notify_access_to_string(s->notify_access));
1162 if (s->control_pid > 0)
1164 "%sControl PID: %lu\n",
1165 prefix, (unsigned long) s->control_pid);
1167 if (s->main_pid > 0)
1169 "%sMain PID: %lu\n",
1170 prefix, (unsigned long) s->main_pid);
1175 prefix, s->pid_file);
1180 "%sBus Name Good: %s\n",
1181 prefix, s->bus_name,
1182 prefix, yes_no(s->bus_name_good));
1184 exec_context_dump(&s->exec_context, f, prefix);
1186 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1188 if (!s->exec_command[c])
1191 fprintf(f, "%s-> %s:\n",
1192 prefix, service_exec_command_to_string(c));
1194 exec_command_dump_list(s->exec_command[c], f, prefix2);
1197 #ifdef HAVE_SYSV_COMPAT
1200 "%sSysV Init Script Path: %s\n"
1201 "%sSysV Init Script has LSB Header: %s\n"
1202 "%sSysVEnabled: %s\n",
1203 prefix, s->sysv_path,
1204 prefix, yes_no(s->sysv_has_lsb),
1205 prefix, yes_no(s->sysv_enabled));
1207 if (s->sysv_start_priority >= 0)
1209 "%sSysVStartPriority: %i\n",
1210 prefix, s->sysv_start_priority);
1212 if (s->sysv_runlevels)
1213 fprintf(f, "%sSysVRunLevels: %s\n",
1214 prefix, s->sysv_runlevels);
1217 if (s->fsck_passno > 0)
1219 "%sFsckPassNo: %i\n",
1220 prefix, s->fsck_passno);
1223 fprintf(f, "%sStatus Text: %s\n",
1224 prefix, s->status_text);
1229 static int service_load_pid_file(Service *s) {
1236 if (s->main_pid_known)
1239 assert(s->main_pid <= 0);
1244 if ((r = read_one_line_file(s->pid_file, &k)) < 0)
1247 r = parse_pid(k, &pid);
1253 if (kill(pid, 0) < 0 && errno != EPERM) {
1254 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1255 (unsigned long) pid, s->pid_file);
1259 if ((r = service_set_main_pid(s, pid)) < 0)
1262 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1263 /* FIXME: we need to do something here */
1269 static int service_search_main_pid(Service *s) {
1275 if (s->main_pid_known)
1278 assert(s->main_pid <= 0);
1280 if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0)
1283 if ((r = service_set_main_pid(s, pid)) < 0)
1286 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1287 /* FIXME: we need to do something here */
1293 static int service_get_sockets(Service *s, Set **_set) {
1302 if (s->socket_fd >= 0)
1305 if (!set_isempty(s->configured_sockets))
1308 /* Collects all Socket objects that belong to this
1309 * service. Note that a service might have multiple sockets
1310 * via multiple names. */
1312 if (!(set = set_new(NULL, NULL)))
1315 SET_FOREACH(t, s->meta.names, i) {
1319 /* Look for all socket objects that go by any of our
1320 * units and collect their fds */
1322 if (!(k = unit_name_change_suffix(t, ".socket"))) {
1327 p = manager_get_unit(s->meta.manager, k);
1333 if ((r = set_put(set, p)) < 0)
1345 static int service_notify_sockets_dead(Service *s) {
1347 Set *set, *free_set = NULL;
1353 /* Notifies all our sockets when we die */
1355 if (s->socket_fd >= 0)
1358 if (!set_isempty(s->configured_sockets))
1359 set = s->configured_sockets;
1361 if ((r = service_get_sockets(s, &free_set)) < 0)
1367 SET_FOREACH(sock, set, i)
1368 socket_notify_service_dead(sock);
1375 static void service_set_state(Service *s, ServiceState state) {
1376 ServiceState old_state;
1379 old_state = s->state;
1382 if (state != SERVICE_START_PRE &&
1383 state != SERVICE_START &&
1384 state != SERVICE_START_POST &&
1385 state != SERVICE_RELOAD &&
1386 state != SERVICE_STOP &&
1387 state != SERVICE_STOP_SIGTERM &&
1388 state != SERVICE_STOP_SIGKILL &&
1389 state != SERVICE_STOP_POST &&
1390 state != SERVICE_FINAL_SIGTERM &&
1391 state != SERVICE_FINAL_SIGKILL &&
1392 state != SERVICE_AUTO_RESTART)
1393 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1395 if (state != SERVICE_START &&
1396 state != SERVICE_START_POST &&
1397 state != SERVICE_RUNNING &&
1398 state != SERVICE_RELOAD &&
1399 state != SERVICE_STOP &&
1400 state != SERVICE_STOP_SIGTERM &&
1401 state != SERVICE_STOP_SIGKILL)
1402 service_unwatch_main_pid(s);
1404 if (state != SERVICE_START_PRE &&
1405 state != SERVICE_START &&
1406 state != SERVICE_START_POST &&
1407 state != SERVICE_RELOAD &&
1408 state != SERVICE_STOP &&
1409 state != SERVICE_STOP_SIGTERM &&
1410 state != SERVICE_STOP_SIGKILL &&
1411 state != SERVICE_STOP_POST &&
1412 state != SERVICE_FINAL_SIGTERM &&
1413 state != SERVICE_FINAL_SIGKILL) {
1414 service_unwatch_control_pid(s);
1415 s->control_command = NULL;
1416 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1419 if (state == SERVICE_DEAD ||
1420 state == SERVICE_STOP ||
1421 state == SERVICE_STOP_SIGTERM ||
1422 state == SERVICE_STOP_SIGKILL ||
1423 state == SERVICE_STOP_POST ||
1424 state == SERVICE_FINAL_SIGTERM ||
1425 state == SERVICE_FINAL_SIGKILL ||
1426 state == SERVICE_FAILED ||
1427 state == SERVICE_AUTO_RESTART)
1428 service_notify_sockets_dead(s);
1430 if (state != SERVICE_START_PRE &&
1431 state != SERVICE_START &&
1432 state != SERVICE_START_POST &&
1433 state != SERVICE_RUNNING &&
1434 state != SERVICE_RELOAD &&
1435 state != SERVICE_STOP &&
1436 state != SERVICE_STOP_SIGTERM &&
1437 state != SERVICE_STOP_SIGKILL &&
1438 state != SERVICE_STOP_POST &&
1439 state != SERVICE_FINAL_SIGTERM &&
1440 state != SERVICE_FINAL_SIGKILL &&
1441 !(state == SERVICE_DEAD && s->meta.job)) {
1442 service_close_socket_fd(s);
1443 service_connection_unref(s);
1446 /* For the inactive states unit_notify() will trim the cgroup,
1447 * but for exit we have to do that ourselves... */
1448 if (state == SERVICE_EXITED)
1449 cgroup_bonding_trim_list(s->meta.cgroup_bondings, true);
1451 if (old_state != state)
1452 log_debug("%s changed %s -> %s", s->meta.id, service_state_to_string(old_state), service_state_to_string(state));
1454 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
1457 static int service_coldplug(Unit *u) {
1458 Service *s = SERVICE(u);
1462 assert(s->state == SERVICE_DEAD);
1464 if (s->deserialized_state != s->state) {
1466 if (s->deserialized_state == SERVICE_START_PRE ||
1467 s->deserialized_state == SERVICE_START ||
1468 s->deserialized_state == SERVICE_START_POST ||
1469 s->deserialized_state == SERVICE_RELOAD ||
1470 s->deserialized_state == SERVICE_STOP ||
1471 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1472 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1473 s->deserialized_state == SERVICE_STOP_POST ||
1474 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1475 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1476 s->deserialized_state == SERVICE_AUTO_RESTART) {
1478 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) {
1481 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec;
1483 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1488 if ((s->deserialized_state == SERVICE_START &&
1489 (s->type == SERVICE_FORKING ||
1490 s->type == SERVICE_DBUS ||
1491 s->type == SERVICE_ONESHOT ||
1492 s->type == SERVICE_NOTIFY)) ||
1493 s->deserialized_state == SERVICE_START_POST ||
1494 s->deserialized_state == SERVICE_RUNNING ||
1495 s->deserialized_state == SERVICE_RELOAD ||
1496 s->deserialized_state == SERVICE_STOP ||
1497 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1498 s->deserialized_state == SERVICE_STOP_SIGKILL)
1499 if (s->main_pid > 0)
1500 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1503 if (s->deserialized_state == SERVICE_START_PRE ||
1504 s->deserialized_state == SERVICE_START ||
1505 s->deserialized_state == SERVICE_START_POST ||
1506 s->deserialized_state == SERVICE_RELOAD ||
1507 s->deserialized_state == SERVICE_STOP ||
1508 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1509 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1510 s->deserialized_state == SERVICE_STOP_POST ||
1511 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1512 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1513 if (s->control_pid > 0)
1514 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1517 service_set_state(s, s->deserialized_state);
1523 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1527 unsigned rn_fds = 0;
1528 Set *set, *free_set = NULL;
1535 if (s->socket_fd >= 0)
1538 if (!set_isempty(s->configured_sockets))
1539 set = s->configured_sockets;
1541 if ((r = service_get_sockets(s, &free_set)) < 0)
1547 SET_FOREACH(sock, set, i) {
1551 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1563 if (!(t = new(int, rn_fds+cn_fds))) {
1569 memcpy(t, rfds, rn_fds);
1570 memcpy(t+rn_fds, cfds, cn_fds);
1575 rn_fds = rn_fds+cn_fds;
1593 static int service_spawn(
1598 bool apply_permissions,
1600 bool apply_tty_stdin,
1601 bool set_notify_socket,
1606 int *fds = NULL, *fdsbuf = NULL;
1607 unsigned n_fds = 0, n_env = 0;
1608 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1615 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1616 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1617 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1619 if (s->socket_fd >= 0) {
1620 fds = &s->socket_fd;
1623 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1630 if (timeout && s->timeout_usec) {
1631 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1634 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1636 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1641 if (!(our_env = new0(char*, 4))) {
1646 if (set_notify_socket)
1647 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) {
1652 if (s->main_pid > 0)
1653 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1658 if (!(final_env = strv_env_merge(2,
1659 s->meta.manager->environment,
1674 s->meta.manager->confirm_spawn,
1675 s->meta.cgroup_bondings,
1682 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1683 /* FIXME: we need to do something here */
1689 strv_free(final_env);
1699 strv_free(final_env);
1702 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1707 static int main_pid_good(Service *s) {
1710 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1713 /* If we know the pid file, then lets just check if it is
1715 if (s->main_pid_known)
1716 return s->main_pid > 0;
1718 /* We don't know the pid */
1722 static int control_pid_good(Service *s) {
1725 return s->control_pid > 0;
1728 static int cgroup_good(Service *s) {
1733 if ((r = cgroup_bonding_is_empty_list(s->meta.cgroup_bondings)) < 0)
1739 static void service_enter_dead(Service *s, bool success, bool allow_restart) {
1746 if (allow_restart &&
1747 !s->forbid_restart &&
1748 (s->restart == SERVICE_RESTART_ALWAYS ||
1749 (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure) ||
1750 (s->restart == SERVICE_RESTART_ON_FAILURE && s->failure) ||
1751 (s->restart == SERVICE_RESTART_ON_ABORT && s->failure &&
1752 (s->main_exec_status.code == CLD_KILLED ||
1753 s->main_exec_status.code == CLD_DUMPED)))) {
1755 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
1758 service_set_state(s, SERVICE_AUTO_RESTART);
1760 service_set_state(s, s->failure ? SERVICE_FAILED : SERVICE_DEAD);
1762 s->forbid_restart = false;
1767 log_warning("%s failed to run install restart timer: %s", s->meta.id, strerror(-r));
1768 service_enter_dead(s, false, false);
1771 static void service_enter_signal(Service *s, ServiceState state, bool success);
1773 static void service_enter_stop_post(Service *s, bool success) {
1780 service_unwatch_control_pid(s);
1782 s->control_command_id = SERVICE_EXEC_STOP_POST;
1783 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1784 if ((r = service_spawn(s,
1788 !s->permissions_start_only,
1789 !s->root_directory_start_only,
1792 &s->control_pid)) < 0)
1796 service_set_state(s, SERVICE_STOP_POST);
1798 service_enter_signal(s, SERVICE_FINAL_SIGTERM, true);
1803 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
1804 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
1807 static void service_enter_signal(Service *s, ServiceState state, bool success) {
1809 Set *pid_set = NULL;
1810 bool wait_for_exit = false;
1817 if (s->exec_context.kill_mode != KILL_NONE) {
1818 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
1820 if (s->main_pid > 0) {
1821 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1823 s->main_pid, sig) < 0 && errno != ESRCH)
1825 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1827 wait_for_exit = true;
1830 if (s->control_pid > 0) {
1831 if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
1833 s->control_pid, sig) < 0 && errno != ESRCH)
1835 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1837 wait_for_exit = true;
1840 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1842 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1847 /* Exclude the main/control pids from being killed via the cgroup */
1848 if (s->main_pid > 0)
1849 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1852 if (s->control_pid > 0)
1853 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1856 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
1857 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1858 log_warning("Failed to kill control group: %s", strerror(-r));
1860 wait_for_exit = true;
1866 if (wait_for_exit) {
1867 if (s->timeout_usec > 0)
1868 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1871 service_set_state(s, state);
1872 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1873 service_enter_stop_post(s, true);
1875 service_enter_dead(s, true, true);
1880 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
1882 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
1883 service_enter_stop_post(s, false);
1885 service_enter_dead(s, false, true);
1891 static void service_enter_stop(Service *s, bool success) {
1899 service_unwatch_control_pid(s);
1901 s->control_command_id = SERVICE_EXEC_STOP;
1902 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
1903 if ((r = service_spawn(s,
1907 !s->permissions_start_only,
1908 !s->root_directory_start_only,
1911 &s->control_pid)) < 0)
1914 service_set_state(s, SERVICE_STOP);
1916 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
1921 log_warning("%s failed to run 'stop' task: %s", s->meta.id, strerror(-r));
1922 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
1925 static void service_enter_running(Service *s, bool success) {
1926 int main_pid_ok, cgroup_ok;
1932 main_pid_ok = main_pid_good(s);
1933 cgroup_ok = cgroup_good(s);
1935 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
1936 (s->bus_name_good || s->type != SERVICE_DBUS))
1937 service_set_state(s, SERVICE_RUNNING);
1938 else if (s->remain_after_exit)
1939 service_set_state(s, SERVICE_EXITED);
1941 service_enter_stop(s, true);
1944 static void service_enter_start_post(Service *s) {
1948 service_unwatch_control_pid(s);
1950 s->control_command_id = SERVICE_EXEC_START_POST;
1951 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
1952 if ((r = service_spawn(s,
1956 !s->permissions_start_only,
1957 !s->root_directory_start_only,
1960 &s->control_pid)) < 0)
1963 service_set_state(s, SERVICE_START_POST);
1965 service_enter_running(s, true);
1970 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
1971 service_enter_stop(s, false);
1974 static void service_enter_start(Service *s) {
1980 assert(s->exec_command[SERVICE_EXEC_START]);
1981 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
1983 if (s->type == SERVICE_FORKING)
1984 service_unwatch_control_pid(s);
1986 service_unwatch_main_pid(s);
1988 s->control_command_id = SERVICE_EXEC_START;
1989 s->control_command = s->exec_command[SERVICE_EXEC_START];
1991 if ((r = service_spawn(s,
1993 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY,
1998 s->notify_access != NOTIFY_NONE,
2002 if (s->type == SERVICE_SIMPLE) {
2003 /* For simple services we immediately start
2004 * the START_POST binaries. */
2006 service_set_main_pid(s, pid);
2007 service_enter_start_post(s);
2009 } else if (s->type == SERVICE_FORKING) {
2011 /* For forking services we wait until the start
2012 * process exited. */
2014 s->control_pid = pid;
2015 service_set_state(s, SERVICE_START);
2017 } else if (s->type == SERVICE_ONESHOT ||
2018 s->type == SERVICE_DBUS ||
2019 s->type == SERVICE_NOTIFY) {
2021 /* For oneshot services we wait until the start
2022 * process exited, too, but it is our main process. */
2024 /* For D-Bus services we know the main pid right away,
2025 * but wait for the bus name to appear on the
2026 * bus. Notify services are similar. */
2028 service_set_main_pid(s, pid);
2029 service_set_state(s, SERVICE_START);
2031 assert_not_reached("Unknown service type");
2036 log_warning("%s failed to run 'start' task: %s", s->meta.id, strerror(-r));
2037 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2040 static void service_enter_start_pre(Service *s) {
2045 service_unwatch_control_pid(s);
2047 s->control_command_id = SERVICE_EXEC_START_PRE;
2048 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2049 if ((r = service_spawn(s,
2053 !s->permissions_start_only,
2054 !s->root_directory_start_only,
2057 &s->control_pid)) < 0)
2060 service_set_state(s, SERVICE_START_PRE);
2062 service_enter_start(s);
2067 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
2068 service_enter_dead(s, false, true);
2071 static void service_enter_restart(Service *s) {
2076 dbus_error_init(&error);
2079 log_info("Job pending for unit, delaying automatic restart.");
2081 if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
2085 service_enter_dead(s, true, false);
2087 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, &error, NULL)) < 0)
2090 log_debug("%s scheduled restart job.", s->meta.id);
2094 log_warning("%s failed to schedule restart job: %s", s->meta.id, bus_error(&error, -r));
2095 service_enter_dead(s, false, false);
2097 dbus_error_free(&error);
2100 static void service_enter_reload(Service *s) {
2105 service_unwatch_control_pid(s);
2107 s->control_command_id = SERVICE_EXEC_RELOAD;
2108 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2109 if ((r = service_spawn(s,
2113 !s->permissions_start_only,
2114 !s->root_directory_start_only,
2117 &s->control_pid)) < 0)
2120 service_set_state(s, SERVICE_RELOAD);
2122 service_enter_running(s, true);
2127 log_warning("%s failed to run 'reload' task: %s", s->meta.id, strerror(-r));
2128 service_enter_stop(s, false);
2131 static void service_run_next_control(Service *s, bool success) {
2135 assert(s->control_command);
2136 assert(s->control_command->command_next);
2141 assert(s->control_command_id != SERVICE_EXEC_START);
2143 s->control_command = s->control_command->command_next;
2144 service_unwatch_control_pid(s);
2146 if ((r = service_spawn(s,
2150 !s->permissions_start_only,
2151 !s->root_directory_start_only,
2152 s->control_command_id == SERVICE_EXEC_START_PRE ||
2153 s->control_command_id == SERVICE_EXEC_STOP_POST,
2155 &s->control_pid)) < 0)
2161 log_warning("%s failed to run next control task: %s", s->meta.id, strerror(-r));
2163 if (s->state == SERVICE_START_PRE)
2164 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2165 else if (s->state == SERVICE_STOP)
2166 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2167 else if (s->state == SERVICE_STOP_POST)
2168 service_enter_dead(s, false, true);
2170 service_enter_stop(s, false);
2173 static void service_run_next_main(Service *s, bool success) {
2178 assert(s->control_command);
2179 assert(s->control_command->command_next);
2184 assert(s->control_command_id == SERVICE_EXEC_START);
2185 assert(s->type == SERVICE_ONESHOT);
2187 s->control_command = s->control_command->command_next;
2188 service_unwatch_main_pid(s);
2190 if ((r = service_spawn(s,
2197 s->notify_access != NOTIFY_NONE,
2201 service_set_main_pid(s, pid);
2206 log_warning("%s failed to run next main task: %s", s->meta.id, strerror(-r));
2207 service_enter_stop(s, false);
2210 static int service_start(Unit *u) {
2211 Service *s = SERVICE(u);
2215 /* We cannot fulfill this request right now, try again later
2217 if (s->state == SERVICE_STOP ||
2218 s->state == SERVICE_STOP_SIGTERM ||
2219 s->state == SERVICE_STOP_SIGKILL ||
2220 s->state == SERVICE_STOP_POST ||
2221 s->state == SERVICE_FINAL_SIGTERM ||
2222 s->state == SERVICE_FINAL_SIGKILL)
2225 /* Already on it! */
2226 if (s->state == SERVICE_START_PRE ||
2227 s->state == SERVICE_START ||
2228 s->state == SERVICE_START_POST)
2231 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED || s->state == SERVICE_AUTO_RESTART);
2233 /* Make sure we don't enter a busy loop of some kind. */
2234 if (!ratelimit_test(&s->ratelimit)) {
2235 log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
2240 s->main_pid_known = false;
2241 s->forbid_restart = false;
2243 service_enter_start_pre(s);
2247 static int service_stop(Unit *u) {
2248 Service *s = SERVICE(u);
2252 /* This is a user request, so don't do restarts on this
2254 s->forbid_restart = true;
2257 if (s->state == SERVICE_STOP ||
2258 s->state == SERVICE_STOP_SIGTERM ||
2259 s->state == SERVICE_STOP_SIGKILL ||
2260 s->state == SERVICE_STOP_POST ||
2261 s->state == SERVICE_FINAL_SIGTERM ||
2262 s->state == SERVICE_FINAL_SIGKILL)
2265 /* Don't allow a restart */
2266 if (s->state == SERVICE_AUTO_RESTART) {
2267 service_set_state(s, SERVICE_DEAD);
2271 /* If there's already something running we go directly into
2273 if (s->state == SERVICE_START_PRE ||
2274 s->state == SERVICE_START ||
2275 s->state == SERVICE_START_POST ||
2276 s->state == SERVICE_RELOAD) {
2277 service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
2281 assert(s->state == SERVICE_RUNNING ||
2282 s->state == SERVICE_EXITED);
2284 service_enter_stop(s, true);
2288 static int service_reload(Unit *u) {
2289 Service *s = SERVICE(u);
2293 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2295 service_enter_reload(s);
2299 static bool service_can_reload(Unit *u) {
2300 Service *s = SERVICE(u);
2304 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2307 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2308 Service *s = SERVICE(u);
2314 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2315 unit_serialize_item(u, f, "failure", yes_no(s->failure));
2317 if (s->control_pid > 0)
2318 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2320 if (s->main_pid_known && s->main_pid > 0)
2321 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2323 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2326 unit_serialize_item(u, f, "status-text", s->status_text);
2328 /* There's a minor uncleanliness here: if there are multiple
2329 * commands attached here, we will start from the first one
2331 if (s->control_command_id >= 0)
2332 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2334 if (s->socket_fd >= 0) {
2337 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2340 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2343 if (s->main_exec_status.pid > 0) {
2344 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2345 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2346 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2348 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2349 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2350 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2357 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2358 Service *s = SERVICE(u);
2365 if (streq(key, "state")) {
2368 if ((state = service_state_from_string(value)) < 0)
2369 log_debug("Failed to parse state value %s", value);
2371 s->deserialized_state = state;
2372 } else if (streq(key, "failure")) {
2375 if ((b = parse_boolean(value)) < 0)
2376 log_debug("Failed to parse failure value %s", value);
2378 s->failure = b || s->failure;
2379 } else if (streq(key, "control-pid")) {
2382 if (parse_pid(value, &pid) < 0)
2383 log_debug("Failed to parse control-pid value %s", value);
2385 s->control_pid = pid;
2386 } else if (streq(key, "main-pid")) {
2389 if (parse_pid(value, &pid) < 0)
2390 log_debug("Failed to parse main-pid value %s", value);
2392 service_set_main_pid(s, (pid_t) pid);
2393 } else if (streq(key, "main-pid-known")) {
2396 if ((b = parse_boolean(value)) < 0)
2397 log_debug("Failed to parse main-pid-known value %s", value);
2399 s->main_pid_known = b;
2400 } else if (streq(key, "status-text")) {
2403 if ((t = strdup(value))) {
2404 free(s->status_text);
2408 } else if (streq(key, "control-command")) {
2409 ServiceExecCommand id;
2411 if ((id = service_exec_command_from_string(value)) < 0)
2412 log_debug("Failed to parse exec-command value %s", value);
2414 s->control_command_id = id;
2415 s->control_command = s->exec_command[id];
2417 } else if (streq(key, "socket-fd")) {
2420 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2421 log_debug("Failed to parse socket-fd value %s", value);
2424 if (s->socket_fd >= 0)
2425 close_nointr_nofail(s->socket_fd);
2426 s->socket_fd = fdset_remove(fds, fd);
2428 } else if (streq(key, "main-exec-status-pid")) {
2431 if (parse_pid(value, &pid) < 0)
2432 log_debug("Failed to parse main-exec-status-pid value %s", value);
2434 s->main_exec_status.pid = pid;
2435 } else if (streq(key, "main-exec-status-code")) {
2438 if (safe_atoi(value, &i) < 0)
2439 log_debug("Failed to parse main-exec-status-code value %s", value);
2441 s->main_exec_status.code = i;
2442 } else if (streq(key, "main-exec-status-status")) {
2445 if (safe_atoi(value, &i) < 0)
2446 log_debug("Failed to parse main-exec-status-status value %s", value);
2448 s->main_exec_status.status = i;
2449 } else if (streq(key, "main-exec-status-start"))
2450 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2451 else if (streq(key, "main-exec-status-exit"))
2452 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2454 log_debug("Unknown serialization key '%s'", key);
2459 static UnitActiveState service_active_state(Unit *u) {
2462 return state_translation_table[SERVICE(u)->state];
2465 static const char *service_sub_state_to_string(Unit *u) {
2468 return service_state_to_string(SERVICE(u)->state);
2471 #ifdef HAVE_SYSV_COMPAT
2472 static bool service_check_gc(Unit *u) {
2473 Service *s = SERVICE(u);
2477 return !!s->sysv_path;
2481 static bool service_check_snapshot(Unit *u) {
2482 Service *s = SERVICE(u);
2486 return !s->got_socket_fd;
2489 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2490 Service *s = SERVICE(u);
2496 if (!s->meta.fragment_path)
2497 success = is_clean_exit_lsb(code, status);
2499 success = is_clean_exit(code, status);
2501 if (s->main_pid == pid) {
2504 exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id);
2506 if (s->type != SERVICE_FORKING && s->control_command) {
2507 s->control_command->exec_status = s->main_exec_status;
2509 if (s->control_command->ignore)
2513 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2514 "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
2515 s->failure = s->failure || !success;
2517 if (s->control_command &&
2518 s->control_command->command_next &&
2521 /* There is another command to *
2522 * execute, so let's do that. */
2524 log_debug("%s running next main command for state %s", u->meta.id, service_state_to_string(s->state));
2525 service_run_next_main(s, success);
2529 /* The service exited, so the service is officially
2532 s->control_command = NULL;
2533 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2537 case SERVICE_START_POST:
2538 case SERVICE_RELOAD:
2540 /* Need to wait until the operation is
2545 if (s->type == SERVICE_ONESHOT) {
2546 /* This was our main goal, so let's go on */
2548 service_enter_start_post(s);
2550 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2553 assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY);
2558 case SERVICE_RUNNING:
2559 service_enter_running(s, success);
2562 case SERVICE_STOP_SIGTERM:
2563 case SERVICE_STOP_SIGKILL:
2565 if (!control_pid_good(s))
2566 service_enter_stop_post(s, success);
2568 /* If there is still a control process, wait for that first */
2572 assert_not_reached("Uh, main process died at wrong time.");
2576 } else if (s->control_pid == pid) {
2580 if (s->control_command) {
2581 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
2583 if (s->control_command->ignore)
2587 log_full(success ? LOG_DEBUG : LOG_NOTICE,
2588 "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
2589 s->failure = s->failure || !success;
2591 if (s->control_command &&
2592 s->control_command->command_next &&
2595 /* There is another command to *
2596 * execute, so let's do that. */
2598 log_debug("%s running next control command for state %s", u->meta.id, service_state_to_string(s->state));
2599 service_run_next_control(s, success);
2602 /* No further commands for this step, so let's
2603 * figure out what to do next */
2605 s->control_command = NULL;
2606 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2608 log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
2612 case SERVICE_START_PRE:
2614 service_enter_start(s);
2616 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2620 assert(s->type == SERVICE_FORKING);
2622 /* Let's try to load the pid
2623 * file here if we can. We
2624 * ignore the return value,
2625 * since the PID file might
2626 * actually be created by a
2627 * START_POST script */
2630 service_load_pid_file(s);
2631 service_search_main_pid(s);
2633 service_enter_start_post(s);
2635 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2639 case SERVICE_START_POST:
2640 if (success && s->pid_file && !s->main_pid_known) {
2643 /* Hmm, let's see if we can
2644 * load the pid now after the
2645 * start-post scripts got
2648 if ((r = service_load_pid_file(s)) < 0)
2649 log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r));
2654 case SERVICE_RELOAD:
2656 service_enter_running(s, true);
2658 service_enter_stop(s, false);
2663 service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
2666 case SERVICE_STOP_SIGTERM:
2667 case SERVICE_STOP_SIGKILL:
2668 if (main_pid_good(s) <= 0)
2669 service_enter_stop_post(s, success);
2671 /* If there is still a service
2672 * process around, wait until
2673 * that one quit, too */
2676 case SERVICE_STOP_POST:
2677 case SERVICE_FINAL_SIGTERM:
2678 case SERVICE_FINAL_SIGKILL:
2679 service_enter_dead(s, success, true);
2683 assert_not_reached("Uh, control process died at wrong time.");
2688 /* Notify clients about changed exit status */
2689 unit_add_to_dbus_queue(u);
2692 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
2693 Service *s = SERVICE(u);
2696 assert(elapsed == 1);
2698 assert(w == &s->timer_watch);
2702 case SERVICE_START_PRE:
2704 log_warning("%s operation timed out. Terminating.", u->meta.id);
2705 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2708 case SERVICE_START_POST:
2709 case SERVICE_RELOAD:
2710 log_warning("%s operation timed out. Stopping.", u->meta.id);
2711 service_enter_stop(s, false);
2715 log_warning("%s stopping timed out. Terminating.", u->meta.id);
2716 service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
2719 case SERVICE_STOP_SIGTERM:
2720 log_warning("%s stopping timed out. Killing.", u->meta.id);
2721 service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
2724 case SERVICE_STOP_SIGKILL:
2725 /* Uh, wie sent a SIGKILL and it is still not gone?
2726 * Must be something we cannot kill, so let's just be
2727 * weirded out and continue */
2729 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
2730 service_enter_stop_post(s, false);
2733 case SERVICE_STOP_POST:
2734 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
2735 service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
2738 case SERVICE_FINAL_SIGTERM:
2739 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
2740 service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
2743 case SERVICE_FINAL_SIGKILL:
2744 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
2745 service_enter_dead(s, false, true);
2748 case SERVICE_AUTO_RESTART:
2749 log_info("%s holdoff time over, scheduling restart.", u->meta.id);
2750 service_enter_restart(s);
2754 assert_not_reached("Timeout at wrong time.");
2758 static void service_cgroup_notify_event(Unit *u) {
2759 Service *s = SERVICE(u);
2763 log_debug("%s: cgroup is empty", u->meta.id);
2767 /* Waiting for SIGCHLD is usually more interesting,
2768 * because it includes return codes/signals. Which is
2769 * why we ignore the cgroup events for most cases,
2770 * except when we don't know pid which to expect the
2773 case SERVICE_RUNNING:
2774 service_enter_running(s, true);
2777 case SERVICE_STOP_SIGTERM:
2778 case SERVICE_STOP_SIGKILL:
2779 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2780 service_enter_stop_post(s, true);
2784 case SERVICE_FINAL_SIGTERM:
2785 case SERVICE_FINAL_SIGKILL:
2786 if (main_pid_good(s) <= 0 && !control_pid_good(s))
2787 service_enter_dead(s, true, true);
2796 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
2797 Service *s = SERVICE(u);
2802 if (s->notify_access == NOTIFY_NONE) {
2803 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2804 u->meta.id, (unsigned long) pid);
2808 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
2809 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2810 u->meta.id, (unsigned long) pid, (unsigned long) s->main_pid);
2814 log_debug("%s: Got message", u->meta.id);
2816 /* Interpret MAINPID= */
2817 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
2818 (s->state == SERVICE_START ||
2819 s->state == SERVICE_START_POST ||
2820 s->state == SERVICE_RUNNING ||
2821 s->state == SERVICE_RELOAD)) {
2823 if (parse_pid(e + 8, &pid) < 0)
2824 log_warning("Failed to parse notification message %s", e);
2826 log_debug("%s: got %s", u->meta.id, e);
2827 service_set_main_pid(s, pid);
2831 /* Interpret READY= */
2832 if (s->type == SERVICE_NOTIFY &&
2833 s->state == SERVICE_START &&
2834 strv_find(tags, "READY=1")) {
2835 log_debug("%s: got READY=1", u->meta.id);
2837 service_enter_start_post(s);
2840 /* Interpret STATUS= */
2841 if ((e = strv_find_prefix(tags, "STATUS="))) {
2845 if (!(t = strdup(e+7))) {
2846 log_error("Failed to allocate string.");
2850 log_debug("%s: got %s", u->meta.id, e);
2852 free(s->status_text);
2855 free(s->status_text);
2856 s->status_text = NULL;
2861 /* Notify clients about changed status or main pid */
2862 unit_add_to_dbus_queue(u);
2865 #ifdef HAVE_SYSV_COMPAT
2866 static int service_enumerate(Manager *m) {
2870 char *path = NULL, *fpath = NULL, *name = NULL;
2871 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
2876 Unit *previous = NULL;
2877 char *arch_daemons = NULL;
2878 char *arch_daemons_stripped = NULL;
2879 char **arch_daemons_split = NULL;
2885 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
2886 "DAEMONS", &arch_daemons,
2890 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
2892 } else if (arch_daemons) {
2893 if (!(arch_daemons_stripped = strchr(arch_daemons, '(')))
2894 arch_daemons_stripped = arch_daemons;
2896 arch_daemons_stripped++; /* strip start paren */
2898 arch_daemons_stripped[strcspn(arch_daemons_stripped, ")")] = 0; /* strip end paren */
2900 if (!(arch_daemons_split = strv_split_quoted(arch_daemons_stripped))) {
2905 STRV_FOREACH(p, arch_daemons_split) {
2910 if (**p == '!') /* daemons prefixed with ! are disabled, so ignore them */
2913 if (!(name = sysv_translate_name(*p))) {
2918 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2919 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
2923 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, "multi-user.target", NULL, true)) < 0)
2927 if ((r = unit_add_dependency(service, UNIT_AFTER, previous, true)) < 0)
2930 if (**p != '@') /* daemons prefixed with @ can be started in the background */
2936 zero(runlevel_services);
2938 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
2939 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
2944 if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) {
2952 if (!(d = opendir(path))) {
2953 if (errno != ENOENT)
2954 log_warning("opendir() failed on %s: %s", path, strerror(errno));
2959 while ((de = readdir(d))) {
2962 if (ignore_file(de->d_name))
2965 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
2968 if (strlen(de->d_name) < 4)
2971 a = undecchar(de->d_name[1]);
2972 b = undecchar(de->d_name[2]);
2979 if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) {
2984 if (access(fpath, X_OK) < 0) {
2986 if (errno != ENOENT)
2987 log_warning("access() failed on %s: %s", fpath, strerror(errno));
2993 if (!(name = sysv_translate_name(de->d_name + 3))) {
2998 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
2999 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3003 if (de->d_name[0] == 'S') {
3005 if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
3006 SERVICE(service)->sysv_start_priority =
3007 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
3009 SERVICE(service)->sysv_enabled = true;
3012 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3015 if ((r = set_put(runlevel_services[i], service)) < 0)
3018 } else if (de->d_name[0] == 'K' &&
3019 (rcnd_table[i].type == RUNLEVEL_DOWN ||
3020 rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
3022 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3025 if ((r = set_put(shutdown_services, service)) < 0)
3031 /* Now we loaded all stubs and are aware of the lowest
3032 start-up priority for all services, not let's actually load
3033 the services, this will also tell us which services are
3034 actually native now */
3035 manager_dispatch_load_queue(m);
3037 /* If this is a native service, rely on native ways to pull in
3038 * a service, don't pull it in via sysv rcN.d links. */
3039 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3040 SET_FOREACH(service, runlevel_services[i], j) {
3041 service = unit_follow_merge(service);
3043 if (service->meta.fragment_path)
3046 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3050 /* We honour K links only for halt/reboot. For the normal
3051 * runlevels we assume the stop jobs will be implicitly added
3052 * by the core logic. Also, we don't really distuingish here
3053 * between the runlevels 0 and 6 and just add them to the
3054 * special shutdown target. On SUSE the boot.d/ runlevel is
3055 * also used for shutdown, so we add links for that too to the
3056 * shutdown target.*/
3057 SET_FOREACH(service, shutdown_services, j) {
3058 service = unit_follow_merge(service);
3060 if (service->meta.fragment_path)
3063 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3075 free(arch_daemons_split);
3078 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3079 set_free(runlevel_services[i]);
3080 set_free(shutdown_services);
3089 static void service_bus_name_owner_change(
3092 const char *old_owner,
3093 const char *new_owner) {
3095 Service *s = SERVICE(u);
3100 assert(streq(s->bus_name, name));
3101 assert(old_owner || new_owner);
3103 if (old_owner && new_owner)
3104 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
3106 log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
3108 log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
3110 s->bus_name_good = !!new_owner;
3112 if (s->type == SERVICE_DBUS) {
3114 /* service_enter_running() will figure out what to
3116 if (s->state == SERVICE_RUNNING)
3117 service_enter_running(s, true);
3118 else if (s->state == SERVICE_START && new_owner)
3119 service_enter_start_post(s);
3121 } else if (new_owner &&
3123 (s->state == SERVICE_START ||
3124 s->state == SERVICE_START_POST ||
3125 s->state == SERVICE_RUNNING ||
3126 s->state == SERVICE_RELOAD)) {
3128 /* Try to acquire PID from bus service */
3129 log_debug("Trying to acquire PID from D-Bus name...");
3131 bus_query_pid(u->meta.manager, name);
3135 static void service_bus_query_pid_done(
3140 Service *s = SERVICE(u);
3145 log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.id, name, (unsigned) pid);
3147 if (s->main_pid <= 0 &&
3148 (s->state == SERVICE_START ||
3149 s->state == SERVICE_START_POST ||
3150 s->state == SERVICE_RUNNING ||
3151 s->state == SERVICE_RELOAD))
3152 service_set_main_pid(s, pid);
3155 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3159 /* This is called by the socket code when instantiating a new
3160 * service for a stream socket and the socket needs to be
3163 if (s->meta.load_state != UNIT_LOADED)
3166 if (s->socket_fd >= 0)
3169 if (s->state != SERVICE_DEAD)
3173 s->got_socket_fd = true;
3174 s->accept_socket = sock;
3179 static void service_reset_failed(Unit *u) {
3180 Service *s = SERVICE(u);
3184 if (s->state == SERVICE_FAILED)
3185 service_set_state(s, SERVICE_DEAD);
3190 static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
3191 Service *s = SERVICE(u);
3193 Set *pid_set = NULL;
3197 if (s->main_pid <= 0 && who == KILL_MAIN) {
3198 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3202 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3203 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3207 if (s->control_pid > 0)
3208 if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
3211 if (s->main_pid > 0)
3212 if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0)
3215 if (mode == KILL_CONTROL_GROUP) {
3218 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
3221 /* Exclude the control/main pid from being killed via the cgroup */
3222 if (s->control_pid > 0)
3223 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
3228 if (s->main_pid > 0)
3229 if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) {
3234 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
3235 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
3246 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3247 [SERVICE_DEAD] = "dead",
3248 [SERVICE_START_PRE] = "start-pre",
3249 [SERVICE_START] = "start",
3250 [SERVICE_START_POST] = "start-post",
3251 [SERVICE_RUNNING] = "running",
3252 [SERVICE_EXITED] = "exited",
3253 [SERVICE_RELOAD] = "reload",
3254 [SERVICE_STOP] = "stop",
3255 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3256 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3257 [SERVICE_STOP_POST] = "stop-post",
3258 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3259 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3260 [SERVICE_FAILED] = "failed",
3261 [SERVICE_AUTO_RESTART] = "auto-restart",
3264 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3266 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3267 [SERVICE_RESTART_NO] = "no",
3268 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3269 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3270 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3271 [SERVICE_RESTART_ALWAYS] = "always"
3274 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3276 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3277 [SERVICE_SIMPLE] = "simple",
3278 [SERVICE_FORKING] = "forking",
3279 [SERVICE_ONESHOT] = "oneshot",
3280 [SERVICE_DBUS] = "dbus",
3281 [SERVICE_NOTIFY] = "notify"
3284 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3286 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3287 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3288 [SERVICE_EXEC_START] = "ExecStart",
3289 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3290 [SERVICE_EXEC_RELOAD] = "ExecReload",
3291 [SERVICE_EXEC_STOP] = "ExecStop",
3292 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3295 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3297 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3298 [NOTIFY_NONE] = "none",
3299 [NOTIFY_MAIN] = "main",
3300 [NOTIFY_ALL] = "all"
3303 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3305 const UnitVTable service_vtable = {
3306 .suffix = ".service",
3307 .show_status = true,
3309 .init = service_init,
3310 .done = service_done,
3311 .load = service_load,
3313 .coldplug = service_coldplug,
3315 .dump = service_dump,
3317 .start = service_start,
3318 .stop = service_stop,
3319 .reload = service_reload,
3321 .can_reload = service_can_reload,
3323 .kill = service_kill,
3325 .serialize = service_serialize,
3326 .deserialize_item = service_deserialize_item,
3328 .active_state = service_active_state,
3329 .sub_state_to_string = service_sub_state_to_string,
3331 #ifdef HAVE_SYSV_COMPAT
3332 .check_gc = service_check_gc,
3334 .check_snapshot = service_check_snapshot,
3336 .sigchld_event = service_sigchld_event,
3337 .timer_event = service_timer_event,
3339 .reset_failed = service_reset_failed,
3341 .cgroup_notify_empty = service_cgroup_notify_event,
3342 .notify_message = service_notify_message,
3344 .bus_name_owner_change = service_bus_name_owner_change,
3345 .bus_query_pid_done = service_bus_query_pid_done,
3347 .bus_interface = "org.freedesktop.systemd1.Service",
3348 .bus_message_handler = bus_service_message_handler,
3349 .bus_invalidating_properties = bus_service_invalidating_properties,
3351 #ifdef HAVE_SYSV_COMPAT
3352 .enumerate = service_enumerate