1d49a5dddSWarner Losh /*- 2d49a5dddSWarner Losh * Copyright (c) 2016 Netflix, Inc. 3d49a5dddSWarner Losh * 4d49a5dddSWarner Losh * Redistribution and use in source and binary forms, with or without 5d49a5dddSWarner Losh * modification, are permitted provided that the following conditions 6d49a5dddSWarner Losh * are met: 7d49a5dddSWarner Losh * 1. Redistributions of source code must retain the above copyright 86decf2ccSEd Maste * notice, this list of conditions and the following disclaimer. 9d49a5dddSWarner Losh * 2. Redistributions in binary form must reproduce the above copyright 10d49a5dddSWarner Losh * notice, this list of conditions and the following disclaimer in the 11d49a5dddSWarner Losh * documentation and/or other materials provided with the distribution. 12d49a5dddSWarner Losh * 136decf2ccSEd Maste * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 146decf2ccSEd Maste * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 156decf2ccSEd Maste * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 166decf2ccSEd Maste * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 176decf2ccSEd Maste * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 186decf2ccSEd Maste * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 196decf2ccSEd Maste * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 206decf2ccSEd Maste * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 216decf2ccSEd Maste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 226decf2ccSEd Maste * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 236decf2ccSEd Maste * SUCH DAMAGE. 24d49a5dddSWarner Losh */ 25d49a5dddSWarner Losh 26d49a5dddSWarner Losh #ifndef _EFIVAR_H_ 27d49a5dddSWarner Losh #define _EFIVAR_H_ 28d49a5dddSWarner Losh 29d49a5dddSWarner Losh #include <uuid.h> 30d49a5dddSWarner Losh #include <sys/efi.h> 31d49a5dddSWarner Losh #include <sys/endian.h> 32d49a5dddSWarner Losh #include <stdint.h> 33d49a5dddSWarner Losh 34d49a5dddSWarner Losh /* Shoud these be elsewhere ? */ 35d49a5dddSWarner Losh #define EFI_VARIABLE_NON_VOLATILE 0x00000001 36d49a5dddSWarner Losh #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002 37d49a5dddSWarner Losh #define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004 38d49a5dddSWarner Losh #define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008 39d49a5dddSWarner Losh #define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010 40d49a5dddSWarner Losh #define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS \ 41d49a5dddSWarner Losh 0x00000020 42d49a5dddSWarner Losh #define EFI_VARIABLE_APPEND_WRITE 0x00000040 43d49a5dddSWarner Losh #if 0 /* todo */ 44d49a5dddSWarner Losh #define EFI_VARIABLE_HAS_AUTH_HEADER 45d49a5dddSWarner Losh #define EFI_VARIABLE_HAS_SIGNATURE 46d49a5dddSWarner Losh #endif 47d49a5dddSWarner Losh 48d49a5dddSWarner Losh 497270962aSWarner Losh #ifndef _EFIVAR_EFI_GUID_T_DEF 507270962aSWarner Losh #define _EFIVAR_EFI_GUID_T_DEF 51d49a5dddSWarner Losh typedef uuid_t efi_guid_t; 527270962aSWarner Losh #endif 537270962aSWarner Losh 54d49a5dddSWarner Losh #if BYTE_ORDER == LITTLE_ENDIAN 55d49a5dddSWarner Losh #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \ 56d49a5dddSWarner Losh ((efi_guid_t) {(a), (b), (c), (d) >> 8, (d) & 0xff, \ 57d49a5dddSWarner Losh { (e0), (e1), (e2), (e3), (e4), (e5) }}) 58d49a5dddSWarner Losh #else 59d49a5dddSWarner Losh #define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \ 60d49a5dddSWarner Losh ((efi_guid_t) {(a), (b), (c), (d) & 0xff, (d) >> 8, \ 61d49a5dddSWarner Losh { (e0), (e1), (e2), (e3), (e4), (e5) }}) 62d49a5dddSWarner Losh #endif 63d49a5dddSWarner Losh 64d49a5dddSWarner Losh #define EFI_GLOBAL_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa0d, \ 65d49a5dddSWarner Losh 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c) 66d49a5dddSWarner Losh 67d49a5dddSWarner Losh int efi_append_variable(efi_guid_t guid, const char *name, 68d49a5dddSWarner Losh uint8_t *data, size_t data_size, uint32_t attributes); 69d49a5dddSWarner Losh int efi_del_variable(efi_guid_t guid, const char *name); 70d49a5dddSWarner Losh int efi_get_variable(efi_guid_t guid, const char *name, 71d49a5dddSWarner Losh uint8_t **data, size_t *data_size, uint32_t *attributes); 72d49a5dddSWarner Losh int efi_get_variable_attributes(efi_guid_t guid, const char *name, 73d49a5dddSWarner Losh uint32_t *attributes); 74d49a5dddSWarner Losh int efi_get_variable_size(efi_guid_t guid, const char *name, size_t *size); 75d49a5dddSWarner Losh int efi_get_next_variable_name(efi_guid_t **guid, char **name); 76d49a5dddSWarner Losh int efi_guid_cmp(const efi_guid_t *guid1, const efi_guid_t *guid2); 77d49a5dddSWarner Losh int efi_guid_is_zero(const efi_guid_t *guid1); 78d49a5dddSWarner Losh int efi_guid_to_name(efi_guid_t *guid, char **name); 79d49a5dddSWarner Losh int efi_guid_to_symbol(efi_guid_t *guid, char **symbol); 80d49a5dddSWarner Losh int efi_guid_to_str(const efi_guid_t *guid, char **sp); 81d49a5dddSWarner Losh int efi_name_to_guid(const char *name, efi_guid_t *guid); 82d49a5dddSWarner Losh int efi_set_variable(efi_guid_t guid, const char *name, 83831bec11SWarner Losh uint8_t *data, size_t data_size, uint32_t attributes); 84d49a5dddSWarner Losh int efi_str_to_guid(const char *s, efi_guid_t *guid); 85d49a5dddSWarner Losh int efi_variables_supported(void); 86d49a5dddSWarner Losh 87e1745513SWarner Losh /* FreeBSD extensions */ 88e1745513SWarner Losh struct uuid_table 89e1745513SWarner Losh { 90e1745513SWarner Losh const char *uuid_str; 91e1745513SWarner Losh const char *name; 92e1745513SWarner Losh efi_guid_t guid; 93e1745513SWarner Losh }; 94e1745513SWarner Losh 95e1745513SWarner Losh int efi_known_guid(struct uuid_table **); 96e1745513SWarner Losh 97d49a5dddSWarner Losh extern const efi_guid_t efi_guid_empty; 98d49a5dddSWarner Losh 99d49a5dddSWarner Losh #endif /* _EFIVAR_H_ */ 100