Changeset 89947 in vbox for trunk/include/VBox

Timestamp:

Jun 29, 2021 10:42:28 AM (4 years ago)

Author:

vboxsync

Message:

X11: Host Services: Shared Clipboard: improve error code path handling, bugref:10038.

This commit improves error code path handling for X11 part of host Shared Clipboard
service. In particular, it adjusts initialization calls to match to its de-init counterpart.
It also adds more resources release on error path. In addition, this commit limits number of
simmultaneous HGCM connections to ShCl host service in order to prevent potential host flooding.

File:

• trunk/include/VBox/GuestHost/SharedClipboard-x11.h (modified) (1 diff)

trunk/include/VBox/GuestHost/SharedClipboard-x11.h

@@ -38 +38 @@
 # include <VBox/GuestHost/SharedClipboard-transfers.h>
 #endif
+
+/**
+ * The maximum number of simultaneous connections to shared clipboard service.
+ * This constant limits amount of GUEST -> HOST connections to shared clipboard host service
+ * for X11 host only. Once amount of connections reaches this number, all the
+ * further attempts to CONNECT will be dropped on an early stage. Possibility to connect
+ * is available again after one of existing connections is closed by DISCONNECT call.
+ */
+#define VBOX_SHARED_CLIPBOARD_X11_CONNECTIONS_MAX   (20)
 
 /** Enables the Xt busy / update handling. */