1 files changed, 93 insertions, 0 deletions
diff --git a/ext/tap-mac/tuntap/src/tap/kmod.cc b/ext/tap-mac/tuntap/src/tap/kmod.cc
new file mode 100644
index 00000000..f9c4a40e
--- /dev/null
+++ b/ext/tap-mac/tuntap/src/tap/kmod.cc
@@ -0,0 +1,93 @@
+/*
+ * ethertap device for MacOSX.
+ *
+ * Kext definition (it is a mach kmod really...)
+ */
+/*
+ * Copyright (c) 2011 Mattias Nissler <mattias.nissler@gmx.de>
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list of
+ *      conditions and the following disclaimer in the documentation and/or other materials provided
+ *      with the distribution.
+ *   3. The name of the author may not be used to endorse or promote products derived from this
+ *      software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tap.h"
+#include "mem.h"
+
+extern "C" {
+
+#include <sys/param.h>
+
+#include <mach/kmod.h>
+
+static tap_manager *mgr;
+
+/*
+ * start function. called when the kext gets loaded.
+ */
+static kern_return_t tap_module_start(struct kmod_info *ki, void *data)
+{
+	mem_initialize(TAP_FAMILY_NAME);
+
+	/* initialize locking */
+	if (!tt_lock::initialize())
+		return KMOD_RETURN_FAILURE;
+
+	/* create a tap manager that will handle the rest */
+	mgr = new tap_manager();
+
+	if (mgr != NULL) {
+		if (mgr->initialize(TAP_IF_COUNT, (char *) TAP_FAMILY_NAME))
+			return KMOD_RETURN_SUCCESS;
+
+		delete mgr;
+		mgr = NULL;
+		/* clean up locking */
+		tt_lock::shutdown();
+	}
+
+	return KMOD_RETURN_FAILURE;
+}
+
+/*
+ * stop function. called when the kext should be unloaded. unloading can be prevented by
+ * returning failure
+ */
+static kern_return_t tap_module_stop(struct kmod_info *ki, void *data)
+{
+	if (mgr != NULL) {
+		if (!mgr->shutdown())
+			return KMOD_RETURN_FAILURE;
+
+		delete mgr;
+		mgr = NULL;
+	}
+
+	/* clean up locking */
+	tt_lock::shutdown();
+
+	mem_shutdown();
+
+	return KMOD_RETURN_SUCCESS;
+} 
+
+KMOD_DECL(tap, TAP_KEXT_VERSION)
+
+}
+