chiark / gitweb /
systemctl: suppress error message when doing "systemctl daemon-reexec"
[elogind.git] / src / systemctl / systemctl.c
index 1f81bda7e3fd38516580a4b86e021b9d69860e16..d25b7d6fae90ecf93a7951257b44d278aa4ea4d8 100644 (file)
@@ -435,8 +435,12 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
         }
 }
 
-static int get_unit_list(DBusConnection *bus, DBusMessage **reply,
-                         struct unit_info **unit_infos, unsigned *c) {
+static int get_unit_list(
+                DBusConnection *bus,
+                DBusMessage **reply,
+                struct unit_info **unit_infos,
+                unsigned *c) {
+
         DBusMessageIter iter, sub;
         size_t size = 0;
         int r;
@@ -498,9 +502,11 @@ static int list_units(DBusConnection *bus, char **args) {
         return 0;
 }
 
-static int get_triggered_units(DBusConnection *bus, const char* unit_path,
-                               char*** triggered)
-{
+static int get_triggered_units(
+                DBusConnection *bus,
+                const char* unit_path,
+                char*** triggered) {
+
         const char *interface = "org.freedesktop.systemd1.Unit",
                    *triggers_property = "Triggers";
         _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
@@ -1448,8 +1454,9 @@ static int cancel_job(DBusConnection *bus, char **args) {
         return 0;
 }
 
-static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
+static int need_daemon_reload(DBusConnection *bus, const char *unit) {
         _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+        _cleanup_dbus_error_free_ DBusError error;
         dbus_bool_t b = FALSE;
         DBusMessageIter iter, sub;
         const char
@@ -1459,6 +1466,8 @@ static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
         _cleanup_free_ char *n = NULL;
         int r;
 
+        dbus_error_init(&error);
+
         /* We ignore all errors here, since this is used to show a warning only */
 
         n = unit_name_mangle(unit);
@@ -1472,7 +1481,7 @@ static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
                         "org.freedesktop.systemd1.Manager",
                         "GetUnit",
                         &reply,
-                        NULL,
+                        &error,
                         DBUS_TYPE_STRING, &n,
                         DBUS_TYPE_INVALID);
         if (r < 0)
@@ -1493,7 +1502,7 @@ static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
                         "org.freedesktop.DBus.Properties",
                         "Get",
                         &reply,
-                        NULL,
+                        &error,
                         DBUS_TYPE_STRING, &interface,
                         DBUS_TYPE_STRING, &property,
                         DBUS_TYPE_INVALID);
@@ -1559,7 +1568,7 @@ static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *me
 
                         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
                 }
-#ifndef LEGACY
+#ifndef NOLEGACY
                 dbus_error_free(&error);
                 if (dbus_message_get_args(message, &error,
                                           DBUS_TYPE_UINT32, &id,
@@ -1913,7 +1922,7 @@ static int start_unit_one(
                 return -EIO;
         }
 
-        if (need_daemon_reload(bus, n))
+        if (need_daemon_reload(bus, n) > 0)
                 log_warning("Warning: Unit file of %s changed on disk, 'systemctl %sdaemon-reload' recommended.",
                             n, arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
 
@@ -2779,7 +2788,7 @@ static void print_status_info(UnitStatusInfo *i) {
                 printf("   Status: \"%s\"\n", i->status_text);
 
         if (i->control_group &&
-            (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_by_spec(i->control_group, false) == 0)) {
+            (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0)) {
                 unsigned c;
 
                 printf("   CGroup: %s\n", i->control_group);
@@ -2801,7 +2810,7 @@ static void print_status_info(UnitStatusInfo *i) {
                         if (i->control_pid > 0)
                                 extra[k++] = i->control_pid;
 
-                        show_cgroup_and_extra_by_spec(i->control_group, prefix,
+                        show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix,
                                                       c, false, extra, k, flags);
                 }
         }
@@ -2910,9 +2919,13 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn
                                 i->fragment_path = s;
                         else if (streq(name, "SourcePath"))
                                 i->source_path = s;
-#ifndef LEGACY
-                        else if (streq(name, "DefaultControlGroup"))
-                                i->control_group = s;
+#ifndef NOLEGACY
+                        else if (streq(name, "DefaultControlGroup")) {
+                                const char *e;
+                                e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
+                                if (e)
+                                        i->control_group = e;
+                        }
 #endif
                         else if (streq(name, "ControlGroup"))
                                 i->control_group = s;
@@ -3259,30 +3272,6 @@ static int print_property(const char *name, DBusMessageIter *iter) {
 
                         return 0;
 
-                } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
-                        DBusMessageIter sub, sub2;
-
-                        dbus_message_iter_recurse(iter, &sub);
-                        while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
-                                const char *controller, *attr, *value;
-
-                                dbus_message_iter_recurse(&sub, &sub2);
-
-                                if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
-                                    bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
-                                    bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
-
-                                        printf("ControlGroupAttributes={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
-                                               controller,
-                                               attr,
-                                               value);
-                                }
-
-                                dbus_message_iter_next(&sub);
-                        }
-
-                        return 0;
-
                 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
                         DBusMessageIter sub;
 
@@ -3458,7 +3447,7 @@ static int show_one(const char *verb, DBusConnection *bus, const char *path, boo
                         r = 1;
                 else
                         r = 3;
-       }
+        }
 
         while ((p = info.exec)) {
                 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
@@ -3632,6 +3621,72 @@ static int append_assignment(DBusMessageIter *iter, const char *assignment) {
                 if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "b", &sub) ||
                     !dbus_message_iter_append_basic(&sub, DBUS_TYPE_BOOLEAN, &b))
                         return log_oom();
+
+        } else if (streq(field, "MemoryLimit") || streq(field, "MemorySoftLimit")) {
+                off_t bytes;
+                uint64_t u;
+
+                r = parse_bytes(eq, &bytes);
+                if (r < 0) {
+                        log_error("Failed to parse bytes specification %s", assignment);
+                        return -EINVAL;
+                }
+
+                u = bytes;
+                if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "t", &sub) ||
+                    !dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT64, &u))
+                        return log_oom();
+
+        } else if (streq(field, "CPUShares") || streq(field, "BlockIOWeight")) {
+                uint64_t u;
+
+                r = safe_atou64(eq, &u);
+                if (r < 0) {
+                        log_error("Failed to parse %s value %s.", field, eq);
+                        return -EINVAL;
+                }
+
+                if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "t", &sub) ||
+                    !dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT64, &u))
+                        return log_oom();
+
+        } else if (streq(field, "DevicePolicy")) {
+
+                if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "s", &sub) ||
+                    !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &eq))
+                        return log_oom();
+
+        } else if (streq(field, "DeviceAllow")) {
+                DBusMessageIter sub2;
+
+                if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "a(ss)", &sub) ||
+                    !dbus_message_iter_open_container(&sub, DBUS_TYPE_ARRAY, "(ss)", &sub2))
+                        return log_oom();
+
+                if (!isempty(eq)) {
+                        const char *path, *rwm;
+                        DBusMessageIter sub3;
+                        char *e;
+
+                        e = strchr(eq, ' ');
+                        if (e) {
+                                path = strndupa(eq, e - eq);
+                                rwm = e+1;
+                        } else {
+                                path = eq;
+                                rwm = "";
+                        }
+
+                        if (!dbus_message_iter_open_container(&sub2, DBUS_TYPE_STRUCT, NULL, &sub3) ||
+                            !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &path) ||
+                            !dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, &rwm) ||
+                            !dbus_message_iter_close_container(&sub2, &sub3))
+                                return log_oom();
+                }
+
+                if (!dbus_message_iter_close_container(&sub, &sub2))
+                        return log_oom();
+
         } else {
                 log_error("Unknown assignment %s.", assignment);
                 return -EINVAL;
@@ -3754,7 +3809,7 @@ static int snapshot(DBusConnection *bus, char **args) {
         if (!n)
                 return log_oom();
 
-        r = bus_method_call_with_reply (
+        r = bus_method_call_with_reply(
                         bus,
                         "org.freedesktop.systemd1",
                         "/org/freedesktop/systemd1",
@@ -3883,9 +3938,9 @@ static int daemon_reload(DBusConnection *bus, char **args) {
                 /* There's always a fallback possible for
                  * legacy actions. */
                 r = -EADDRNOTAVAIL;
-        else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
-                /* On reexecution, we expect a disconnect, not
-                 * reply */
+        else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
+                /* On reexecution, we expect a disconnect, not a
+                 * reply */
                 r = 0;
         else if (r < 0)
                 log_error("Failed to issue method call: %s", bus_error_message(&error));