Changeset 8694 in vbox

Timestamp:

May 8, 2008 7:29:59 AM (17 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

30631

Message:

Linux Additions: handle IOCTL_VBOXGUEST_HGCM_DISCONNECT

File:

• trunk/src/VBox/Additions/linux/module/vboxmod.c (modified) (2 diffs)

trunk/src/VBox/Additions/linux/module/vboxmod.c

@@ -343 +343 @@
 
 /**
+ * IOCTL handler.  Disconnect a specific HGCM connection.
+ *
+ * @returns 0 on success, or a Linux kernel errno value
+ * @param  filp           the file structure with which the application opened the driver
+ * @param  userspace_info userspace pointer to the hgcm connection information
+ *                        (VBoxGuestHGCMConnectInfo structure)
+ * @retval userspace_info userspace pointer to the hgcm connection information
+ */
+static int vboxadd_hgcm_disconnect(struct file *filp, unsigned long userspace_info)
+{
+        VBoxGuestHGCMDisconnectInfo info;
+        if (0 != copy_from_user ((void *)&info, (void *)userspace_info, sizeof (info))) {
+                LogRelFunc (("IOCTL_VBOXGUEST_HGCM_DISCONNECT: can not get info\n"));
+                return -EFAULT;
+        }
+        LogRelFunc(("client ID %u\n", info.u32ClientID));
+        vboxadd_cmc_call(vboxDev, IOCTL_VBOXGUEST_HGCM_DISCONNECT, &info);
+        if (copy_to_user ((void *)userspace_info, (void *)&info, sizeof(info))) {
+                LogRelFunc (("IOCTL_VBOXGUEST_HGCM_DISCONNECT: failed to return the connection structure\n"));
+                return -EFAULT;
+        }
+        return 0;
+}
+
+/**
  * IOCtl handler.  Control the interrupt filter mask to specify which VMMDev interrupts
  * we know how to handle.
@@ -532 +557 @@
                     IOCTL_EXIT("IOCTL_VBOXGUEST_HGCM_CONNECT", arg);
                     break;
+            case IOCTL_VBOXGUEST_HGCM_DISCONNECT:
+                    IOCTL_ENTRY("IOCTL_VBOXGUEST_HGCM_DISCONNECT", arg);
+                    vboxadd_hgcm_disconnect(filp, arg);
+                    IOCTL_EXIT("IOCTL_VBOXGUEST_HGCM_DISCONNECT", arg);
+                    break;
             case VBOXGUEST_IOCTL_CTL_FILTER_MASK:
             {