FreeBSD/Linux Kernel Cross Reference
sys/sys/efiio.h

     /* $NetBSD: efiio.h,v 1.2 2021/10/11 10:23:02 jmcneill Exp $ */
     
     /*-
      * Copyright (c) 2021 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Jared McNeill <jmcneill@invisible.ca>.
      *
     * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``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 FOUNDATION OR CONTRIBUTORS
     * 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.
     */
    
    #ifndef _SYS_EFIIO_H
    #define _SYS_EFIIO_H
    
    #include <sys/types.h>
    #include <sys/ioccom.h>
    #include <sys/uuid.h>
    
    /*
     * Variable attributes
     */
    #define EFI_VARIABLE_NON_VOLATILE                               0x00000001
    #define EFI_VARIABLE_BOOTSERVICE_ACCESS                         0x00000002
    #define EFI_VARIABLE_RUNTIME_ACCESS                             0x00000004
    #define EFI_VARIABLE_HARDWARE_ERROR_RECORD                      0x00000008
    #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS                 0x00000010
    #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS      0x00000020
    #define EFI_VARIABLE_APPEND_WRITE                               0x00000040
    #define EFI_VARIABLE_ENHANCED_AUTHENTICATED_ACCESS              0x00000080
    
    struct efi_var_ioc {
            uint16_t *      name;           /* vendor's variable name */
            size_t          namesize;       /* size in bytes of the name buffer */
            struct uuid     vendor;         /* unique identifier for vendor */
            uint32_t        attrib;         /* variable attribute bitmask */
            void *          data;           /* buffer containing variable data */
            size_t          datasize;       /* size in bytes of the data buffer */
    };
    
    #define EFIIOC_VAR_GET          _IOWR('e', 4, struct efi_var_ioc)
    #define EFIIOC_VAR_NEXT         _IOWR('e', 5, struct efi_var_ioc)
    #define EFIIOC_VAR_SET          _IOWR('e', 7, struct efi_var_ioc)
    
    #endif /* _SYS_EFIIO_H */

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