1 files changed, 115 insertions, 0 deletions
diff --git a/src/core/dummy_sanboot.c b/src/core/dummy_sanboot.c
new file mode 100644
index 00000000..16347747
--- /dev/null
+++ b/src/core/dummy_sanboot.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2017 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.
+ *
+ * You can also choose to distribute this program under the terms of
+ * the Unmodified Binary Distribution Licence (as given in the file
+ * COPYING.UBDL), provided that you have satisfied its requirements.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+/** @file
+ *
+ * Dummy SAN device
+ *
+ */
+
+#include <errno.h>
+#include <ipxe/sanboot.h>
+
+/**
+ * Hook dummy SAN device
+ *
+ * @v uri		URI
+ * @v drive		Drive number
+ * @ret drive		Drive number, or negative error
+ */
+static int dummy_san_hook ( struct uri *uri, unsigned int drive ) {
+	struct san_device *sandev;
+	int rc;
+
+	/* Allocate SAN device */
+	sandev = alloc_sandev ( uri, 0 );
+	if ( ! sandev ) {
+		rc = -ENOMEM;
+		goto err_alloc;
+	}
+	sandev->drive = drive;
+
+	/* Register SAN device */
+	if ( ( rc = register_sandev ( sandev ) ) != 0 ) {
+		DBGC ( sandev, "SAN %#02x could not register: %s\n",
+		       sandev->drive, strerror ( rc ) );
+		goto err_register;
+	}
+
+	return drive;
+
+	unregister_sandev ( sandev );
+ err_register:
+	sandev_put ( sandev );
+ err_alloc:
+	return rc;
+}
+
+/**
+ * Unhook dummy SAN device
+ *
+ * @v drive		Drive number
+ */
+static void dummy_san_unhook ( unsigned int drive ) {
+	struct san_device *sandev;
+
+	/* Find drive */
+	sandev = sandev_find ( drive );
+	if ( ! sandev ) {
+		DBG ( "SAN %#02x does not exist\n", drive );
+		return;
+	}
+
+	/* Unregister SAN device */
+	unregister_sandev ( sandev );
+
+	/* Drop reference to drive */
+	sandev_put ( sandev );
+}
+
+/**
+ * Boot from dummy SAN device
+ *
+ * @v drive		Drive number
+ */
+static int dummy_san_boot ( unsigned int drive __unused ) {
+
+	return -EOPNOTSUPP;
+}
+
+/**
+ * Describe dummy SAN device
+ *
+ * @v drive		Drive number
+ */
+static int dummy_san_describe ( unsigned int drive __unused ) {
+
+	return 0;
+}
+
+PROVIDE_SANBOOT ( dummy, san_hook, dummy_san_hook );
+PROVIDE_SANBOOT ( dummy, san_unhook, dummy_san_unhook );
+PROVIDE_SANBOOT ( dummy, san_boot, dummy_san_boot );
+PROVIDE_SANBOOT ( dummy, san_describe, dummy_san_describe );