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Diffstat (limited to 'src/shared/tpm2-event-log.h')
| -rw-r--r-- | src/shared/tpm2-event-log.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/shared/tpm2-event-log.h b/src/shared/tpm2-event-log.h new file mode 100644 index 0000000..916b805 --- /dev/null +++ b/src/shared/tpm2-event-log.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <uchar.h> + +#include "tpm2-util.h" + +/* Definitions as per "TCG PC Client Specific Platform Firmware Profile Specification" + * (https://trustedcomputinggroup.org/resource/pc-client-specific-platform-firmware-profile-specification/), + * section 10.4.1 "Event Types" (at least in version 1.05 Revision 23 of the spec) */ +#ifndef EV_PREBOOT_CERT +#define EV_PREBOOT_CERT UINT32_C(0x00000000) +#define EV_POST_CODE UINT32_C(0x00000001) +#define EV_NO_ACTION UINT32_C(0x00000003) +#define EV_SEPARATOR UINT32_C(0x00000004) +#define EV_ACTION UINT32_C(0x00000005) +#define EV_EVENT_TAG UINT32_C(0x00000006) +#define EV_S_CRTM_CONTENTS UINT32_C(0x00000007) +#define EV_S_CRTM_VERSION UINT32_C(0x00000008) +#define EV_CPU_MICROCODE UINT32_C(0x00000009) +#define EV_PLATFORM_CONFIG_FLAGS UINT32_C(0x0000000a) +#define EV_TABLE_OF_DEVICES UINT32_C(0x0000000b) +#define EV_COMPACT_HASH UINT32_C(0x0000000c) +#define EV_IPL UINT32_C(0x0000000d) +#define EV_IPL_PARTITION_DATA UINT32_C(0x0000000e) +#define EV_NONHOST_CODE UINT32_C(0x0000000f) +#define EV_NONHOST_CONFIG UINT32_C(0x00000010) +#define EV_NONHOST_INFO UINT32_C(0x00000011) +#define EV_OMIT_BOOT_DEVICE_EVENTS UINT32_C(0x00000012) +#define EV_EFI_EVENT_BASE UINT32_C(0x80000000) +#define EV_EFI_VARIABLE_DRIVER_CONFIG UINT32_C(0x80000001) +#define EV_EFI_VARIABLE_BOOT UINT32_C(0x80000002) +#define EV_EFI_BOOT_SERVICES_APPLICATION UINT32_C(0x80000003) +#define EV_EFI_BOOT_SERVICES_DRIVER UINT32_C(0x80000004) +#define EV_EFI_RUNTIME_SERVICES_DRIVER UINT32_C(0x80000005) +#define EV_EFI_GPT_EVENT UINT32_C(0x80000006) +#define EV_EFI_ACTION UINT32_C(0x80000007) +#define EV_EFI_PLATFORM_FIRMWARE_BLOB UINT32_C(0x80000008) +#define EV_EFI_HANDOFF_TABLES UINT32_C(0x80000009) +#define EV_EFI_PLATFORM_FIRMWARE_BLOB2 UINT32_C(0x8000000A) +#define EV_EFI_HANDOFF_TABLES2 UINT32_C(0x8000000B) +#define EV_EFI_VARIABLE_BOOT2 UINT32_C(0x8000000C) +#define EV_EFI_HCRTM_EVENT UINT32_C(0x80000010) +#define EV_EFI_VARIABLE_AUTHORITY UINT32_C(0x800000E0) +#define EV_EFI_SPDM_FIRMWARE_BLOB UINT32_C(0x800000E1) +#define EV_EFI_SPDM_FIRMWARE_CONFIG UINT32_C(0x800000E2) +#endif + +/* Defined in drivers/firmware/efi/libstub/efistub.h in the Linux kernel sources */ +#ifndef INITRD_EVENT_TAG_ID +#define INITRD_EVENT_TAG_ID UINT32_C(0x8F3B22EC) +#endif + +#ifndef LOAD_OPTIONS_EVENT_TAG_ID +#define LOAD_OPTIONS_EVENT_TAG_ID UINT32_C(0x8F3B22ED) +#endif + +const char *tpm2_log_event_type_to_string(uint32_t type) _const_; + +#if HAVE_TPM2 + +/* UEFI event log data structures */ +typedef struct _packed_ TCG_PCClientPCREvent { + uint32_t pcrIndex; + uint32_t eventType; + uint8_t digest[20]; + uint32_t eventDataSize; + uint32_t event[]; +} TCG_PCClientPCREvent; + +typedef struct _packed_ packed_TPMT_HA { + uint16_t hashAlg; + TPMU_HA digest; +} packed_TPMT_HA; + +typedef struct _packed_ packed_TPML_DIGEST_VALUES { + uint32_t count; + packed_TPMT_HA digests[]; +} packed_TPML_DIGEST_VALUES; + +typedef struct _packed_ TCG_PCR_EVENT2 { + uint32_t pcrIndex; + uint32_t eventType; + packed_TPML_DIGEST_VALUES digests; + /* … */ +} TCG_PCR_EVENT2; + +typedef struct _packed_ TCG_EfiSpecIdEventAlgorithmSize { + uint16_t algorithmId; + uint16_t digestSize; +} TCG_EfiSpecIdEventAlgorithmSize; + +typedef struct _packed_ tdTCG_EfiSpecIdEvent { + uint8_t signature[16]; + uint32_t platformClass; + uint8_t specVersionMinor; + uint8_t specVersionMajor; + uint8_t specErrata; + uint8_t uintnSize; + uint32_t numberOfAlgorithms; + TCG_EfiSpecIdEventAlgorithmSize digestSizes[]; + /* … */ +} TCG_EfiSpecIDEvent; + +typedef struct _packed_ UEFI_VARIABLE_DATA { + uint8_t variableName[16]; + uint64_t unicodeNameLength; + uint64_t variableDataLength; + char16_t unicodeName[]; + /* … */ +} UEFI_VARIABLE_DATA; + +typedef struct _packed_ TCG_PCClientTaggedEvent{ + uint32_t taggedEventID; + uint32_t taggedEventDataSize; + uint8_t taggedEventData[]; +} TCG_PCClientTaggedEvent; + +typedef struct _packed_ packed_EFI_DEVICE_PATH { + uint8_t type; + uint8_t subType; + uint16_t length; + uint8_t path[]; +} packed_EFI_DEVICE_PATH; + +typedef struct _packed_ UEFI_IMAGE_LOAD_EVENT { + uint64_t imageLocationInMemory; + uint64_t imageLengthInMemory; + uint64_t imageLinkTimeAddress; + uint64_t lengthOfDevicePath; + packed_EFI_DEVICE_PATH devicePath[]; +} UEFI_IMAGE_LOAD_EVENT; + +typedef struct _packed_ UEFI_PLATFORM_FIRMWARE_BLOB { + uint64_t blobBase; + uint64_t blobLength; +} UEFI_PLATFORM_FIRMWARE_BLOB; + +#endif |