Fix write-only use of a few variables

[elogind.git] / src / login / logind-dbus.c

diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 345df9f1cc2bf5601ba0e510bc0ab25dc1b81148..890c5c6b1d1d78c46a1e380906f5fd1a871ef706 100644 (file)
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -404,8 +404,8 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
                 int v;
 
                 if (!seat)
-                        seat = m->vtconsole;
-                else if (seat != m->vtconsole)
+                        seat = m->seat0;
+                else if (seat != m->seat0)
                         return -EINVAL;
 
                 v = vtnr_from_tty(tty);
@@ -420,8 +420,8 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
         } else if (tty_is_console(tty)) {
 
                 if (!seat)
-                        seat = m->vtconsole;
-                else if (seat != m->vtconsole)
+                        seat = m->seat0;
+                else if (seat != m->seat0)
                         return -EINVAL;
 
                 if (vtnr != 0)
@@ -429,7 +429,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
         }
 
         if (seat) {
-                if (seat_can_multi_session(seat)) {
+                if (seat_has_vts(seat)) {
                         if (vtnr > 63)
                                 return -EINVAL;
                 } else {
@@ -484,7 +484,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
                         return -EINVAL;
         }
 
-        r = manager_get_session_by_pid(m, leader, &session);
+        manager_get_session_by_pid(m, leader, &session);
         if (session) {
                 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
                 _cleanup_free_ char *path = NULL;
@@ -554,6 +554,7 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
                  * the audit data and let's better register a new
                  * ID */
                 if (hashmap_get(m->sessions, id)) {
+                        log_warning("Existing logind session ID %s used by new audit session, ignoring", id);
                         audit_id = 0;
 
                         free(id);
@@ -956,6 +957,7 @@ static int have_multiple_sessions(
          * count, and non-login sessions do not count either. */
         HASHMAP_FOREACH(session, m->sessions, i)
                 if (session->class == SESSION_USER &&
+                    !session->closing &&
                     session->user->uid != uid)
                         return true;
 
@@ -2255,7 +2257,7 @@ static DBusHandlerResult manager_message_handler(
                 }
 
                 HASHMAP_FOREACH(user, m->users, i)
-                        fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
+                        fprintf(f, "<node name=\"user/_%llu\"/>", (unsigned long long) user->uid);
 
                 HASHMAP_FOREACH(session, m->sessions, i) {
                         p = bus_path_escape(session->id);
@@ -2394,7 +2396,6 @@ DBusHandlerResult bus_message_filter(
 
         } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
 
-                _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
                 _cleanup_free_ char *unit = NULL;
                 const char *path;
 
@@ -2458,6 +2459,31 @@ DBusHandlerResult bus_message_filter(
                         HASHMAP_FOREACH(session, m->sessions, i)
                                 session_add_to_gc_queue(session);
                 }
+
+        } else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
+                const char *name, *old, *new;
+                char *key;
+
+                if (!dbus_message_get_args(message, &error,
+                                           DBUS_TYPE_STRING, &name,
+                                           DBUS_TYPE_STRING, &old,
+                                           DBUS_TYPE_STRING, &new,
+                                           DBUS_TYPE_INVALID)) {
+                        log_error("Failed to parse NameOwnerChanged message: %s", bus_error_message(&error));
+                        goto finish;
+                }
+
+                /* drop all controllers owned by this name */
+                if (*old && !*new && (key = hashmap_remove(m->busnames, old))) {
+                        Session *session;
+                        Iterator i;
+
+                        free(key);
+
+                        HASHMAP_FOREACH(session, m->sessions, i)
+                                if (session_is_controller(session, old))
+                                        session_drop_controller(session);
+                }
         }
 
 finish: