Blame as-fate318433-prevent-same-account-multi-logins.patch

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Index: b/src/libaccountsservice/act-user-manager.c
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===================================================================
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--- a/src/libaccountsservice/act-user-manager.c	2019-09-11 17:40:53.726949739 +0800
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+++ b/src/libaccountsservice/act-user-manager.c	2019-09-11 17:41:00.547007450 +0800
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@@ -1752,12 +1752,22 @@ maybe_add_new_session (ActUserManagerNew
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         if (new_session->x11_display == NULL) {
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                 g_debug ("AcUserManager: (mostly) ignoring session '%s' since it's not graphical",
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                          new_session->id);
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-                is_ours = FALSE;
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+                /* SLE: ignore non-graphical session completely */
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+                /* see `act_user_is_logged_in_anywhere` */
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+                unload_new_session (new_session);
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+                return;
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         } else if (session_is_login_window (manager, new_session->id)) {
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                 new_session->state = ACT_USER_MANAGER_NEW_SESSION_STATE_LOADED;
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                 unload_new_session (new_session);
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                 return;
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         } else if (!session_is_on_our_seat (manager, new_session->id)) {
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+                /**
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+                 * NOTE: if `manager->priv->seat.id` or `new_session->id` is
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+                 * either NULL, it's not on our seat: this is reasonable, as
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+                 * non-seat session is not switchable and thus no need to be
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+                 * ours. However, this nondiscrimination for all non-seated
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+                 * sessions is possibly a source for bugs.
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+                 */
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                 is_ours = FALSE;
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         }
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Bernhard M. Wiedemann de373b
Index: b/src/libaccountsservice/act-user.c
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===================================================================
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--- a/src/libaccountsservice/act-user.c	2019-09-11 17:40:53.726949739 +0800
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+++ b/src/libaccountsservice/act-user.c	2019-09-11 17:41:00.547007450 +0800
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@@ -868,6 +868,8 @@ act_user_is_logged_in (ActUser *user)
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  * (Currently, this function is only implemented for systemd-logind.
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  * For ConsoleKit, it is equivalent to act_user_is_logged_in.)
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  *
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+ * (SLE-12 SP2: 'other_sessions' have been modified to contain only X sessions)
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+ *
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  * Returns: %TRUE or %FALSE
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  */
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 gboolean
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@@ -896,6 +898,24 @@ act_user_get_saved (ActUser *user)
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 }
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 /**
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+ * act_user_is_x_logged_in_remotely:
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+ * @user: a #ActUser
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+ *
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+ * Returns whether or not #ActUser is currently graphically logged in on a
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+ * different seat or no seat.
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+ *
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+ * (For SLE12-SP2: fate#318433)
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+ *
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+ * Returns: %TRUE or %FALSE
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+ */
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+gboolean
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+act_user_is_x_logged_in_remotely (ActUser *user)
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+{
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+        /* return user->remote_x_sessions; */
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+        return (user->other_sessions != NULL);
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+}
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+
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+/**
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  * act_user_get_locked:
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  * @user: a #ActUser
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  *
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Index: b/src/libaccountsservice/act-user.h
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===================================================================
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--- a/src/libaccountsservice/act-user.h	2019-09-11 17:40:53.726949739 +0800
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+++ b/src/libaccountsservice/act-user.h	2019-09-11 17:41:00.547007450 +0800
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@@ -67,6 +67,7 @@ guint          act_user_get_num_sessions
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 guint          act_user_get_num_sessions_anywhere (ActUser   *user);
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 gboolean       act_user_is_logged_in              (ActUser   *user);
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 gboolean       act_user_is_logged_in_anywhere     (ActUser   *user);
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+gboolean       act_user_is_x_logged_in_remotely   (ActUser   *user);
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 int            act_user_get_login_frequency       (ActUser   *user);
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 gint64         act_user_get_login_time            (ActUser   *user);
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 const GVariant*act_user_get_login_history         (ActUser   *user);