1 files changed, 61 insertions, 0 deletions
diff --git a/src/usr/shimmgmt.c b/src/usr/shimmgmt.c
new file mode 100644
index 00000000..6ac1ac35
--- /dev/null
+++ b/src/usr/shimmgmt.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 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 );
+
+#include <ipxe/efi/efi.h>
+#include <ipxe/efi/efi_shim.h>
+#include <usr/shimmgmt.h>
+
+/** @file
+ *
+ * EFI shim management
+ *
+ */
+
+/**
+ * Set shim image
+ *
+ * @v image		Shim image, or NULL to clear shim
+ * @v require_loader	Require use of a third party loader
+ * @v allow_pxe		Allow use of PXE base code
+ * @v allow_sbat	Allow SBAT variable access
+ * @ret rc		Return status code
+ */
+int shim ( struct image *image, int require_loader, int allow_pxe,
+	   int allow_sbat ) {
+
+	/* Record (or clear) shim image */
+	image_tag ( image, &efi_shim );
+
+	/* Avoid including image in constructed initrd */
+	if ( image )
+		image_hide ( image );
+
+	/* Record configuration */
+	efi_shim_require_loader = require_loader;
+	efi_shim_allow_pxe = allow_pxe;
+	efi_shim_allow_sbat = allow_sbat;
+
+	return 0;
+}