Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / net / nullnet.c

diff --git a/qemu/roms/ipxe/src/net/nullnet.c b/qemu/roms/ipxe/src/net/nullnet.c
new file mode 100644 (file)
index 0000000..4ac50f6
--- /dev/null
+++ b/qemu/roms/ipxe/src/net/nullnet.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <errno.h>
+#include <ipxe/iobuf.h>
+#include <ipxe/netdevice.h>
+
+/** @file
+ *
+ * Null network device
+ *
+ */
+
+static int null_open ( struct net_device *netdev __unused ) {
+       return -ENODEV;
+};
+
+static void null_close ( struct net_device *netdev __unused ) {
+       /* Do nothing */
+};
+
+static int null_transmit ( struct net_device *netdev __unused,
+                          struct io_buffer *iobuf __unused ) {
+       return -ENODEV;
+};
+
+static void null_poll ( struct net_device *netdev __unused ) {
+       /* Do nothing */
+}
+
+static void null_irq ( struct net_device *netdev __unused,
+                      int enable __unused ) {
+       /* Do nothing */
+}
+
+struct net_device_operations null_netdev_operations = {
+       .open           = null_open,
+       .close          = null_close,
+       .transmit       = null_transmit,
+       .poll           = null_poll,
+       .irq            = null_irq,
+};