| AKASHI Takahiro | 16abff2 | 2022-02-09 19:10:35 +0900 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Copyright 2021 Linaro Limited |
| 4 | * Author: AKASHI Takahiro |
| 5 | * |
| 6 | * derived from efi.h and efi_api.h to make the file POSIX-compliant |
| 7 | */ |
| 8 | |
| 9 | #ifndef _EFI_CAPSULE_H |
| 10 | #define _EFI_CAPSULE_H |
| 11 | |
| 12 | #include <stdint.h> |
| 13 | |
| 14 | /* |
| 15 | * Gcc's predefined attributes are not recognized by clang. |
| 16 | */ |
| 17 | #ifndef __packed |
| 18 | #define __packed __attribute__((__packed__)) |
| 19 | #endif |
| 20 | |
| 21 | #ifndef __aligned |
| 22 | #define __aligned(x) __attribute__((__aligned__(x))) |
| 23 | #endif |
| 24 | |
| 25 | typedef struct { |
| 26 | uint8_t b[16]; |
| 27 | } efi_guid_t __aligned(8); |
| 28 | |
| 29 | #define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ |
| 30 | {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \ |
| 31 | ((a) >> 24) & 0xff, \ |
| 32 | (b) & 0xff, ((b) >> 8) & 0xff, \ |
| 33 | (c) & 0xff, ((c) >> 8) & 0xff, \ |
| 34 | (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } } |
| 35 | |
| 36 | #define EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID \ |
| 37 | EFI_GUID(0x6dcbd5ed, 0xe82d, 0x4c44, 0xbd, 0xa1, \ |
| 38 | 0x71, 0x94, 0x19, 0x9a, 0xd9, 0x2a) |
| 39 | |
| AKASHI Takahiro | 16abff2 | 2022-02-09 19:10:35 +0900 | [diff] [blame] | 40 | #define EFI_CERT_TYPE_PKCS7_GUID \ |
| 41 | EFI_GUID(0x4aafd29d, 0x68df, 0x49ee, 0x8a, 0xa9, \ |
| 42 | 0x34, 0x7d, 0x37, 0x56, 0x65, 0xa7) |
| 43 | |
| 44 | /* flags */ |
| 45 | #define CAPSULE_FLAGS_PERSIST_ACROSS_RESET 0x00010000 |
| 46 | |
| 47 | struct efi_capsule_header { |
| 48 | efi_guid_t capsule_guid; |
| 49 | uint32_t header_size; |
| 50 | uint32_t flags; |
| 51 | uint32_t capsule_image_size; |
| 52 | } __packed; |
| 53 | |
| 54 | struct efi_firmware_management_capsule_header { |
| 55 | uint32_t version; |
| 56 | uint16_t embedded_driver_count; |
| 57 | uint16_t payload_item_count; |
| 58 | uint32_t item_offset_list[]; |
| 59 | } __packed; |
| 60 | |
| 61 | /* image_capsule_support */ |
| 62 | #define CAPSULE_SUPPORT_AUTHENTICATION 0x0000000000000001 |
| 63 | |
| 64 | struct efi_firmware_management_capsule_image_header { |
| 65 | uint32_t version; |
| 66 | efi_guid_t update_image_type_id; |
| 67 | uint8_t update_image_index; |
| 68 | uint8_t reserved[3]; |
| 69 | uint32_t update_image_size; |
| 70 | uint32_t update_vendor_code_size; |
| 71 | uint64_t update_hardware_instance; |
| 72 | uint64_t image_capsule_support; |
| 73 | } __packed; |
| 74 | |
| 75 | /** |
| 76 | * win_certificate_uefi_guid - A certificate that encapsulates |
| 77 | * a GUID-specific signature |
| 78 | * |
| 79 | * @hdr: Windows certificate header, cf. WIN_CERTIFICATE |
| 80 | * @cert_type: Certificate type |
| 81 | */ |
| 82 | struct win_certificate_uefi_guid { |
| 83 | struct { |
| 84 | uint32_t dwLength; |
| 85 | uint16_t wRevision; |
| 86 | uint16_t wCertificateType; |
| 87 | } hdr; |
| 88 | efi_guid_t cert_type; |
| 89 | } __packed; |
| 90 | |
| 91 | /** |
| 92 | * efi_firmware_image_authentication - Capsule authentication method |
| 93 | * descriptor |
| 94 | * |
| 95 | * This structure describes an authentication information for |
| 96 | * a capsule with IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED set |
| 97 | * and should be included as part of the capsule. |
| 98 | * Only EFI_CERT_TYPE_PKCS7_GUID is accepted. |
| 99 | * |
| 100 | * @monotonic_count: Count to prevent replay |
| 101 | * @auth_info: Authentication info |
| 102 | */ |
| 103 | struct efi_firmware_image_authentication { |
| 104 | uint64_t monotonic_count; |
| 105 | struct win_certificate_uefi_guid auth_info; |
| 106 | } __packed; |
| 107 | |
| 108 | #endif /* _EFI_CAPSULE_H */ |