chiark / gitweb /
plymouth: call plymouth quit before running the getty, not after
[elogind.git] / src / service.c
index 47108503ddf47ed65a69803b904fcb41f083595a..a3a23e327119f6a7b010b51874f334a51f67f052 100644 (file)
@@ -49,20 +49,32 @@ static const struct {
         const char *target;
         const RunlevelType type;
 } rcnd_table[] = {
-        /* Standard SysV runlevels */
-        { "rc0.d",  SPECIAL_POWEROFF_TARGET,  RUNLEVEL_DOWN },
+        /* Standard SysV runlevels for start-up */
         { "rc1.d",  SPECIAL_RESCUE_TARGET,    RUNLEVEL_UP },
         { "rc2.d",  SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
         { "rc3.d",  SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
         { "rc4.d",  SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
         { "rc5.d",  SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
-        { "rc6.d",  SPECIAL_REBOOT_TARGET,    RUNLEVEL_DOWN },
 
+#ifdef TARGET_SUSE
         /* SUSE style boot.d */
         { "boot.d", SPECIAL_SYSINIT_TARGET,   RUNLEVEL_SYSINIT },
+#endif
 
+#ifdef TARGET_DEBIAN
         /* Debian style rcS.d */
         { "rcS.d",  SPECIAL_SYSINIT_TARGET,   RUNLEVEL_SYSINIT },
+#endif
+
+        /* Standard SysV runlevels for shutdown */
+        { "rc0.d",  SPECIAL_POWEROFF_TARGET,  RUNLEVEL_DOWN },
+        { "rc6.d",  SPECIAL_REBOOT_TARGET,    RUNLEVEL_DOWN }
+
+        /* Note that the order here matters, as we read the
+           directories in this order, and we want to make sure that
+           sysv_start_priority is known when we first load the
+           unit. And that value we only know from S links. Hence
+           UP/SYSINIT must be read before DOWN */
 };
 
 #define RUNLEVELS_UP "12345"
@@ -284,6 +296,7 @@ static int sysv_fix_order(Service *s) {
         LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) {
                 Service *t;
                 UnitDependency d;
+                bool special_s, special_t;
 
                 t = (Service*) other;
 
@@ -299,7 +312,14 @@ static int sysv_fix_order(Service *s) {
                     (!t->sysv_path || t->sysv_has_lsb))
                         continue;
 
-                if (t->sysv_start_priority < s->sysv_start_priority)
+                special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
+                special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
+
+                if (special_t && !special_s)
+                        d = UNIT_AFTER;
+                else if (special_s && !special_t)
+                        d = UNIT_BEFORE;
+                else if (t->sysv_start_priority < s->sysv_start_priority)
                         d = UNIT_AFTER;
                 else if (t->sysv_start_priority > s->sysv_start_priority)
                         d = UNIT_BEFORE;
@@ -546,8 +566,10 @@ static int service_load_sysv_path(Service *s, const char *path) {
 
                                         if (unit_name_to_type(m) == UNIT_SERVICE)
                                                 r = unit_add_name(u, m);
+                                        else if (s->sysv_enabled)
+                                                r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_WANTS, m, NULL, true);
                                         else
-                                                r = unit_add_two_dependencies_by_name_inverse(u, UNIT_AFTER, UNIT_REQUIRES, m, NULL, true);
+                                                r = unit_add_dependency_by_name_inverse(u, UNIT_AFTER, m, NULL, true);
 
                                         free(m);
 
@@ -686,7 +708,7 @@ static int service_load_sysv_path(Service *s, const char *path) {
         s->type = SERVICE_FORKING;
         s->valid_no_process = true;
         s->restart = SERVICE_ONCE;
-        s->exec_context.std_output = EXEC_OUTPUT_TTY;
+        s->exec_context.std_output = s->meta.manager->sysv_console ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL;
         s->exec_context.kill_mode = KILL_PROCESS_GROUP;
 
         u->meta.load_state = UNIT_LOADED;
@@ -775,7 +797,7 @@ static int service_load_sysv(Service *s) {
                         if (t == s->meta.id)
                                 continue;
 
-                        if ((r == service_load_sysv_name(s, t)) < 0)
+                        if ((r = service_load_sysv_name(s, t)) < 0)
                                 return r;
 
                         if (s->meta.load_state != UNIT_STUB)
@@ -851,7 +873,7 @@ static int service_add_default_dependencies(Service *s) {
         }
 
         /* Second, activate normal shutdown */
-        return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+        return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true);
 }
 
 static int service_load(Unit *u) {
@@ -930,12 +952,14 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
                 "%sRootDirectoryStartOnly: %s\n"
                 "%sValidNoProcess: %s\n"
                 "%sType: %s\n"
+                "%sRestart: %s\n"
                 "%sNotifyAccess: %s\n",
                 prefix, service_state_to_string(s->state),
                 prefix, yes_no(s->permissions_start_only),
                 prefix, yes_no(s->root_directory_start_only),
                 prefix, yes_no(s->valid_no_process),
                 prefix, service_type_to_string(s->type),
+                prefix, service_restart_to_string(s->restart),
                 prefix, notify_access_to_string(s->notify_access));
 
         if (s->control_pid > 0)
@@ -982,8 +1006,10 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
 
         if (s->sysv_start_priority >= 0)
                 fprintf(f,
-                        "%sSysVStartPriority: %i\n",
-                        prefix, s->sysv_start_priority);
+                        "%sSysVStartPriority: %i\n"
+                        "%sSysVEnabled: %s\n",
+                        prefix, s->sysv_start_priority,
+                        prefix, yes_no(s->sysv_enabled));
 
         if (s->sysv_runlevels)
                 fprintf(f, "%sSysVRunLevels: %s\n",
@@ -1474,7 +1500,7 @@ static void service_enter_dead(Service *s, bool success, bool allow_restart) {
                 s->failure = true;
 
         if (allow_restart &&
-            s->allow_restart &&
+            !s->forbid_restart &&
             (s->restart == SERVICE_RESTART_ALWAYS ||
              (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
 
@@ -1485,6 +1511,8 @@ static void service_enter_dead(Service *s, bool success, bool allow_restart) {
         } else
                 service_set_state(s, s->failure ? SERVICE_MAINTENANCE : SERVICE_DEAD);
 
+        s->forbid_restart = false;
+
         return;
 
 fail:
@@ -1846,7 +1874,8 @@ static void service_run_next(Service *s, bool success) {
                                false,
                                !s->permissions_start_only,
                                !s->root_directory_start_only,
-                               false,
+                               s->control_command_id == SERVICE_EXEC_START_PRE ||
+                               s->control_command_id == SERVICE_EXEC_STOP_POST,
                                false,
                                &s->control_pid)) < 0)
                 goto fail;
@@ -1895,9 +1924,17 @@ static int service_start(Unit *u) {
                 return -ECANCELED;
         }
 
+        if ((s->exec_context.std_input == EXEC_INPUT_SOCKET ||
+             s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
+             s->exec_context.std_error == EXEC_OUTPUT_SOCKET) &&
+            s->socket_fd < 0) {
+                log_warning("%s can only be started with a per-connection socket.", u->meta.id);
+                return -EINVAL;
+        }
+
         s->failure = false;
         s->main_pid_known = false;
-        s->allow_restart = true;
+        s->forbid_restart = false;
 
         service_enter_start_pre(s);
         return 0;
@@ -1910,7 +1947,7 @@ static int service_stop(Unit *u) {
 
         /* This is a user request, so don't do restarts on this
          * shutdown. */
-        s->allow_restart = false;
+        s->forbid_restart = true;
 
         /* Already on it */
         if (s->state == SERVICE_STOP ||
@@ -1981,6 +2018,9 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
 
         unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
 
+        if (s->status_text)
+                unit_serialize_item(u, f, "status-text", s->status_text);
+
         /* There's a minor uncleanliness here: if there are multiple
          * commands attached here, we will start from the first one
          * again */
@@ -2023,7 +2063,6 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
 
 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
         Service *s = SERVICE(u);
-        int r;
 
         assert(u);
         assert(key);
@@ -2047,14 +2086,14 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
         } else if (streq(key, "control-pid")) {
                 pid_t pid;
 
-                if ((r = parse_pid(value, &pid)) < 0)
+                if (parse_pid(value, &pid) < 0)
                         log_debug("Failed to parse control-pid value %s", value);
                 else
                         s->control_pid = pid;
         } else if (streq(key, "main-pid")) {
                 pid_t pid;
 
-                if ((r = parse_pid(value, &pid)) < 0)
+                if (parse_pid(value, &pid) < 0)
                         log_debug("Failed to parse main-pid value %s", value);
                 else
                         service_set_main_pid(s, (pid_t) pid);
@@ -2065,6 +2104,14 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
                         log_debug("Failed to parse main-pid-known value %s", value);
                 else
                         s->main_pid_known = b;
+        } else if (streq(key, "status-text")) {
+                char *t;
+
+                if ((t = strdup(value))) {
+                        free(s->status_text);
+                        s->status_text = t;
+                }
+
         } else if (streq(key, "control-command")) {
                 ServiceExecCommand id;
 
@@ -2088,49 +2135,49 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
         } else if (streq(key, "main-exec-status-pid")) {
                 pid_t pid;
 
-                if ((r = parse_pid(value, &pid)) < 0)
+                if (parse_pid(value, &pid) < 0)
                         log_debug("Failed to parse main-exec-status-pid value %s", value);
                 else
                         s->main_exec_status.pid = pid;
         } else if (streq(key, "main-exec-status-code")) {
                 int i;
 
-                if ((r = safe_atoi(value, &i)) < 0)
+                if (safe_atoi(value, &i) < 0)
                         log_debug("Failed to parse main-exec-status-code value %s", value);
                 else
                         s->main_exec_status.code = i;
         } else if (streq(key, "main-exec-status-status")) {
                 int i;
 
-                if ((r = safe_atoi(value, &i)) < 0)
+                if (safe_atoi(value, &i) < 0)
                         log_debug("Failed to parse main-exec-status-status value %s", value);
                 else
                         s->main_exec_status.status = i;
         } else if (streq(key, "main-exec-status-start-realtime")) {
                 uint64_t k;
 
-                if ((r = safe_atou64(value, &k)) < 0)
+                if (safe_atou64(value, &k) < 0)
                         log_debug("Failed to parse main-exec-status-start-realtime value %s", value);
                 else
                         s->main_exec_status.start_timestamp.realtime = (usec_t) k;
         } else if (streq(key, "main-exec-status-start-monotonic")) {
                 uint64_t k;
 
-                if ((r = safe_atou64(value, &k)) < 0)
+                if (safe_atou64(value, &k) < 0)
                         log_debug("Failed to parse main-exec-status-start-monotonic value %s", value);
                 else
                         s->main_exec_status.start_timestamp.monotonic = (usec_t) k;
         } else if (streq(key, "main-exec-status-exit-realtime")) {
                 uint64_t k;
 
-                if ((r = safe_atou64(value, &k)) < 0)
+                if (safe_atou64(value, &k) < 0)
                         log_debug("Failed to parse main-exec-status-exit-realtime value %s", value);
                 else
                         s->main_exec_status.exit_timestamp.realtime = (usec_t) k;
         } else if (streq(key, "main-exec-status-exit-monotonic")) {
                 uint64_t k;
 
-                if ((r = safe_atou64(value, &k)) < 0)
+                if (safe_atou64(value, &k) < 0)
                         log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value);
                 else
                         s->main_exec_status.exit_timestamp.monotonic = (usec_t) k;
@@ -2190,7 +2237,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                                 success = true;
                 }
 
-                log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
+                log_full(success ? LOG_DEBUG : LOG_NOTICE,
+                         "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
                 s->failure = s->failure || !success;
 
                 /* The service exited, so the service is officially
@@ -2247,7 +2295,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
 
                 s->control_pid = 0;
 
-                log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
+                log_full(success ? LOG_DEBUG : LOG_NOTICE,
+                         "%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
                 s->failure = s->failure || !success;
 
                 /* If we are shutting things down anyway we
@@ -2467,7 +2516,7 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
              s->state == SERVICE_RELOAD)) {
 
                 if (parse_pid(e + 8, &pid) < 0)
-                        log_warning("Failed to parse %s", e);
+                        log_warning("Failed to parse notification message %s", e);
                 else {
                         log_debug("%s: got %s", u->meta.id, e);
                         service_set_main_pid(s, pid);
@@ -2487,15 +2536,21 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
         if ((e = strv_find_prefix(tags, "STATUS="))) {
                 char *t;
 
-                if (!(t = strdup(e+7))) {
-                        log_error("Failed to allocate string.");
-                        return;
-                }
+                if (e[7]) {
+                        if (!(t = strdup(e+7))) {
+                                log_error("Failed to allocate string.");
+                                return;
+                        }
 
-                log_debug("%s: got %s", u->meta.id, e);
+                        log_debug("%s: got %s", u->meta.id, e);
+
+                        free(s->status_text);
+                        s->status_text = t;
+                } else {
+                        free(s->status_text);
+                        s->status_text = NULL;
+                }
 
-                free(s->status_text);
-                s->status_text = t;
         }
 }
 
@@ -2575,9 +2630,11 @@ static int service_enumerate(Manager *m) {
                                 }
 
                                 if (de->d_name[0] == 'S' &&
-                                    (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT))
+                                    (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
                                         SERVICE(service)->sysv_start_priority =
                                                 MAX(a*10 + b, SERVICE(service)->sysv_start_priority);
+                                        SERVICE(service)->sysv_enabled = true;
+                                }
 
                                 manager_dispatch_load_queue(m);
                                 service = unit_follow_merge(service);
@@ -2723,6 +2780,17 @@ int service_set_socket_fd(Service *s, int fd, Socket *sock) {
         return 0;
 }
 
+static void service_reset_maintenance(Unit *u) {
+        Service *s = SERVICE(u);
+
+        assert(s);
+
+        if (s->state == SERVICE_MAINTENANCE)
+                service_set_state(s, SERVICE_DEAD);
+
+        s->failure = false;
+}
+
 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
         [SERVICE_DEAD] = "dead",
         [SERVICE_START_PRE] = "start-pre",
@@ -2810,6 +2878,8 @@ const UnitVTable service_vtable = {
         .sigchld_event = service_sigchld_event,
         .timer_event = service_timer_event,
 
+        .reset_maintenance = service_reset_maintenance,
+
         .cgroup_notify_empty = service_cgroup_notify_event,
         .notify_message = service_notify_message,