/* * Copyright (C) 2023 Michael Brown . * * 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 #include #include /** @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; }