| /* |
| * Copyright (c) 2020-2022, Arm Limited. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #ifndef TCG_H |
| #define TCG_H |
| |
| #include <stdint.h> |
| |
| #define TCG_ID_EVENT_SIGNATURE_03 "Spec ID Event03" |
| #define TCG_STARTUP_LOCALITY_SIGNATURE "StartupLocality" |
| |
| #define TCG_SPEC_VERSION_MAJOR_TPM2 2 |
| #define TCG_SPEC_VERSION_MINOR_TPM2 0 |
| #define TCG_SPEC_ERRATA_TPM2 2 |
| |
| /* |
| * Event types |
| * Ref. Table 9 Events |
| * TCG PC Client Platform Firmware Profile Specification. |
| */ |
| #define EV_PREBOOT_CERT U(0x00000000) |
| #define EV_POST_CODE U(0x00000001) |
| #define EV_UNUSED U(0x00000002) |
| #define EV_NO_ACTION U(0x00000003) |
| #define EV_SEPARATOR U(0x00000004) |
| #define EV_ACTION U(0x00000005) |
| #define EV_EVENT_TAG U(0x00000006) |
| #define EV_S_CRTM_CONTENTS U(0x00000007) |
| #define EV_S_CRTM_VERSION U(0x00000008) |
| #define EV_CPU_MICROCODE U(0x00000009) |
| #define EV_PLATFORM_CONFIG_FLAGS U(0x0000000A) |
| #define EV_TABLE_OF_DEVICES U(0x0000000B) |
| #define EV_COMPACT_HASH U(0x0000000C) |
| #define EV_IPL U(0x0000000D) |
| #define EV_IPL_PARTITION_DATA U(0x0000000E) |
| #define EV_NONHOST_CODE U(0x0000000F) |
| #define EV_NONHOST_CONFIG U(0x00000010) |
| #define EV_NONHOST_INFO U(0x00000011) |
| #define EV_OMIT_BOOT_DEVICE_EVENTS U(0x00000012) |
| #define EV_EFI_EVENT_BASE U(0x80000000) |
| #define EV_EFI_VARIABLE_DRIVER_CONFIG U(0x80000001) |
| #define EV_EFI_VARIABLE_BOOT U(0x80000002) |
| #define EV_EFI_BOOT_SERVICES_APPLICATION U(0x80000003) |
| #define EV_EFI_BOOT_SERVICES_DRIVER U(0x80000004) |
| #define EV_EFI_RUNTIME_SERVICES_DRIVER U(0x80000005) |
| #define EV_EFI_GPT_EVENT U(0x80000006) |
| #define EV_EFI_ACTION U(0x80000007) |
| #define EV_EFI_PLATFORM_FIRMWARE_BLOB U(0x80000008) |
| #define EV_EFI_HANDOFF_TABLES U(0x80000009) |
| #define EV_EFI_HCRTM_EVENT U(0x80000010) |
| #define EV_EFI_VARIABLE_AUTHORITY U(0x800000E0) |
| |
| /* |
| * TPM_ALG_ID constants. |
| * Ref. Table 9 - Definition of (UINT16) TPM_ALG_ID Constants |
| * Trusted Platform Module Library. Part 2: Structures |
| */ |
| #define TPM_ALG_SHA256 0x000B |
| #define TPM_ALG_SHA384 0x000C |
| #define TPM_ALG_SHA512 0x000D |
| |
| /* TCG Platform Type */ |
| #define PLATFORM_CLASS_CLIENT 0 |
| #define PLATFORM_CLASS_SERVER 1 |
| |
| /* SHA digest sizes in bytes */ |
| #define SHA1_DIGEST_SIZE 20 |
| #define SHA256_DIGEST_SIZE 32 |
| #define SHA384_DIGEST_SIZE 48 |
| #define SHA512_DIGEST_SIZE 64 |
| |
| enum { |
| /* |
| * SRTM, BIOS, Host Platform Extensions, Embedded |
| * Option ROMs and PI Drivers |
| */ |
| PCR_0 = 0, |
| /* Host Platform Configuration */ |
| PCR_1, |
| /* UEFI driver and application Code */ |
| PCR_2, |
| /* UEFI driver and application Configuration and Data */ |
| PCR_3, |
| /* UEFI Boot Manager Code (usually the MBR) and Boot Attempts */ |
| PCR_4, |
| /* |
| * Boot Manager Code Configuration and Data (for use |
| * by the Boot Manager Code) and GPT/Partition Table |
| */ |
| PCR_5, |
| /* Host Platform Manufacturer Specific */ |
| PCR_6, |
| /* Secure Boot Policy */ |
| PCR_7, |
| /* 8-15: Defined for use by the Static OS */ |
| PCR_8, |
| /* Debug */ |
| PCR_16 = 16, |
| |
| /* D-CRTM-measurements by DRTM implementation */ |
| PCR_17 = 17, |
| /* DCE measurements by DRTM implementation */ |
| PCR_18 = 18 |
| }; |
| |
| #pragma pack(push, 1) |
| |
| /* |
| * PCR Event Header |
| * TCG EFI Protocol Specification |
| * 5.3 Event Log Header |
| */ |
| typedef struct { |
| /* PCRIndex: |
| * The PCR Index to which this event is extended |
| */ |
| uint32_t pcr_index; |
| |
| /* EventType: |
| * SHALL be an EV_NO_ACTION event |
| */ |
| uint32_t event_type; |
| |
| /* SHALL be 20 Bytes of 0x00 */ |
| uint8_t digest[SHA1_DIGEST_SIZE]; |
| |
| /* The size of the event */ |
| uint32_t event_size; |
| |
| /* SHALL be a TCG_EfiSpecIdEvent */ |
| uint8_t event[]; /* [event_data_size] */ |
| } tcg_pcr_event_t; |
| |
| /* |
| * Log Header Entry Data |
| * Ref. Table 14 TCG_EfiSpecIdEventAlgorithmSize |
| * TCG PC Client Platform Firmware Profile 9.4.5.1 |
| */ |
| typedef struct { |
| /* Algorithm ID (hashAlg) of the Hash used by BIOS */ |
| uint16_t algorithm_id; |
| |
| /* The size of the digest produced by the implemented Hash algorithm */ |
| uint16_t digest_size; |
| } id_event_algorithm_size_t; |
| |
| /* |
| * TCG_EfiSpecIdEvent structure |
| * Ref. Table 15 TCG_EfiSpecIdEvent |
| * TCG PC Client Platform Firmware Profile 9.4.5.1 |
| */ |
| typedef struct { |
| /* |
| * The NUL-terminated ASCII string "Spec ID Event03". |
| * SHALL be set to {0x53, 0x70, 0x65, 0x63, 0x20, 0x49, 0x44, |
| * 0x20, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x30, 0x33, 0x00}. |
| */ |
| uint8_t signature[16]; |
| |
| /* |
| * The value for the Platform Class. |
| * The enumeration is defined in the TCG ACPI Specification Client |
| * Common Header. |
| */ |
| uint32_t platform_class; |
| |
| /* |
| * The PC Client Platform Profile Specification minor version number |
| * this BIOS supports. |
| * Any BIOS supporting this version (2.0) MUST set this value to 0x00. |
| */ |
| uint8_t spec_version_minor; |
| |
| /* |
| * The PC Client Platform Profile Specification major version number |
| * this BIOS supports. |
| * Any BIOS supporting this version (2.0) MUST set this value to 0x02. |
| */ |
| uint8_t spec_version_major; |
| |
| /* |
| * The PC Client Platform Profile Specification errata version number |
| * this BIOS supports. |
| * Any BIOS supporting this version (2.0) MUST set this value to 0x02. |
| */ |
| uint8_t spec_errata; |
| |
| /* |
| * Specifies the size of the UINTN fields used in various data |
| * structures used in this specification. |
| * 0x01 indicates UINT32 and 0x02 indicates UINT64. |
| */ |
| uint8_t uintn_size; |
| |
| /* |
| * The number of Hash algorithms in the digestSizes field. |
| * This field MUST be set to a value of 0x01 or greater. |
| */ |
| uint32_t number_of_algorithms; |
| |
| /* |
| * Each TCG_EfiSpecIdEventAlgorithmSize SHALL contain an algorithmId |
| * and digestSize for each hash algorithm used in the TCG_PCR_EVENT2 |
| * structure, the first of which is a Hash algorithmID and the second |
| * is the size of the respective digest. |
| */ |
| id_event_algorithm_size_t digest_size[]; /* number_of_algorithms */ |
| } id_event_struct_header_t; |
| |
| typedef struct { |
| /* |
| * Size in bytes of the VendorInfo field. |
| * Maximum value MUST be FFh bytes. |
| */ |
| uint8_t vendor_info_size; |
| |
| /* |
| * Provided for use by Platform Firmware implementer. The value might |
| * be used, for example, to provide more detailed information about the |
| * specific BIOS such as BIOS revision numbers, etc. The values within |
| * this field are not standardized and are implementer-specific. |
| * Platform-specific or -unique information MUST NOT be provided in |
| * this field. |
| * |
| */ |
| uint8_t vendor_info[]; /* [vendorInfoSize] */ |
| } id_event_struct_data_t; |
| |
| typedef struct { |
| id_event_struct_header_t struct_header; |
| id_event_struct_data_t struct_data; |
| } id_event_struct_t; |
| |
| typedef struct { |
| tcg_pcr_event_t header; |
| id_event_struct_header_t struct_header; |
| } id_event_headers_t; |
| |
| /* TPMT_HA Structure */ |
| typedef struct { |
| /* Selector of the hash contained in the digest that implies |
| * the size of the digest |
| */ |
| uint16_t algorithm_id; /* AlgorithmId */ |
| |
| /* Digest, depends on AlgorithmId */ |
| uint8_t digest[]; /* Digest[] */ |
| } tpmt_ha; |
| |
| /* |
| * TPML_DIGEST_VALUES Structure |
| */ |
| typedef struct { |
| /* The number of digests in the list */ |
| uint32_t count; /* Count */ |
| |
| /* The list of tagged digests, as sent to the TPM as part of a |
| * TPM2_PCR_Extend or as received from a TPM2_PCR_Event command |
| */ |
| tpmt_ha digests[]; /* Digests[Count] */ |
| } tpml_digest_values; |
| |
| /* |
| * TCG_PCR_EVENT2 header |
| */ |
| typedef struct { |
| /* The PCR Index to which this event was extended */ |
| uint32_t pcr_index; /* PCRIndex */ |
| |
| /* Type of event */ |
| uint32_t event_type; /* EventType */ |
| |
| /* Digests: |
| * A counted list of tagged digests, which contain the digest of |
| * the event data (or external data) for all active PCR banks |
| */ |
| tpml_digest_values digests; /* Digests */ |
| } event2_header_t; |
| |
| typedef struct event2_data { |
| /* The size of the event data */ |
| uint32_t event_size; /* EventSize */ |
| |
| /* The data of the event */ |
| uint8_t event[]; /* Event[EventSize] */ |
| } event2_data_t; |
| |
| /* |
| * Startup Locality Event |
| * Ref. TCG PC Client Platform Firmware Profile 9.4.5.3 |
| */ |
| typedef struct { |
| /* |
| * The NUL-terminated ASCII string "StartupLocality" SHALL be |
| * set to {0x53 0x74 0x61 0x72 0x74 0x75 0x70 0x4C 0x6F 0x63 |
| * 0x61 0x6C 0x69 0x74 0x79 0x00} |
| */ |
| uint8_t signature[16]; |
| |
| /* The Locality Indicator which sent the TPM2_Startup command */ |
| uint8_t startup_locality; |
| } startup_locality_event_t; |
| |
| #pragma pack(pop) |
| |
| #endif /* TCG_H */ |