summaryrefslogtreecommitdiffstats
path: root/include/VBox/VBoxLnxModInline.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/VBox/VBoxLnxModInline.h')
-rw-r--r--include/VBox/VBoxLnxModInline.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/include/VBox/VBoxLnxModInline.h b/include/VBox/VBoxLnxModInline.h
new file mode 100644
index 00000000..3b0e115d
--- /dev/null
+++ b/include/VBox/VBoxLnxModInline.h
@@ -0,0 +1,66 @@
+/* $Id: VBoxLnxModInline.h $ */
+/** @file
+ * A common code for VirtualBox Linux kernel modules.
+ */
+
+/*
+ * Copyright (C) 2006-2024 Oracle and/or its affiliates.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef VBOX_INCLUDED_VBoxLnxModInline_h
+#define VBOX_INCLUDED_VBoxLnxModInline_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+# include <linux/module.h>
+# include <linux/types.h>
+
+/** Disable automatic module loading. */
+static int g_fDisabled = -1;
+MODULE_PARM_DESC(disabled, "Disable automatic module loading");
+module_param_named(disabled, g_fDisabled, int, 0400);
+
+/**
+ * Check if module loading was explicitly disabled.
+ *
+ * Usually module loading can be disabled by
+ * specifying mod_name.disabled=1 in kernel command line.
+ *
+ * @returns True if modules loading was disabled, False otherwise.
+ */
+static inline bool vbox_mod_should_load(void)
+{
+ bool fShouldLoad = (g_fDisabled != 1);
+
+ /* Print message into dmesg log if module loading was disabled. */
+ if (!fShouldLoad)
+ printk(KERN_WARNING "%s: automatic module loading disabled in kernel command line\n",
+ module_name(THIS_MODULE));
+
+ return fShouldLoad;
+}
+
+#endif /* !VBOX_INCLUDED_VBoxLnxModInline_h */
+