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/* SPDX-License-Identifier: BSD-3-Clause */
#ifndef __TPM2_LOG_SERIALIZED_H__
#define __TPM2_LOG_SERIALIZED_H__
#include <commonlib/bsd/tpm_log_defs.h>
#define TPM_20_SPEC_ID_EVENT_SIGNATURE "Spec ID Event03"
#define TPM_20_LOG_DATA_MAX_LENGTH 50
#define TPM_20_LOG_VI_MAGIC 0x32544243 /* "CBT2" in LE */
#define TPM_20_LOG_VI_MAJOR 1
#define TPM_20_LOG_VI_MINOR 0
/*
* TPM2.0 log entries can't be generally represented as C structures due to
* varying number of digests and their sizes. However, it works as long as
* we're only using single kind of digests.
*/
#if CONFIG(TPM_LOG_TPM2)
# if CONFIG(TPM_HASH_SHA1)
# define TPM_20_LOG_DIGEST_MAX_LENGTH SHA1_DIGEST_SIZE
# endif
# if CONFIG(TPM_HASH_SHA256)
# define TPM_20_LOG_DIGEST_MAX_LENGTH SHA256_DIGEST_SIZE
# endif
# if CONFIG(TPM_HASH_SHA384)
# define TPM_20_LOG_DIGEST_MAX_LENGTH SHA384_DIGEST_SIZE
# endif
# if CONFIG(TPM_HASH_SHA512)
# define TPM_20_LOG_DIGEST_MAX_LENGTH SHA512_DIGEST_SIZE
# endif
# ifndef TPM_20_LOG_DIGEST_MAX_LENGTH
# error "Misconfiguration: failed to determine TPM hashing algorithm"
# endif
#else
# define TPM_20_LOG_DIGEST_MAX_LENGTH 1 /* To avoid compilation error */
#endif
/* TCG_PCR_EVENT2 */
struct tpm_2_log_entry {
uint32_t pcr;
uint32_t event_type;
uint32_t digest_count; /* Always 1 in current implementation */
uint16_t digest_type;
uint8_t digest[TPM_20_LOG_DIGEST_MAX_LENGTH];
uint32_t data_length;
uint8_t data[TPM_20_LOG_DATA_MAX_LENGTH];
} __packed;
struct tpm_2_vendor {
uint8_t reserved;
uint8_t version_major;
uint8_t version_minor;
uint32_t magic;
uint16_t max_entries;
uint16_t num_entries;
uint32_t entry_size;
} __packed;
struct tpm_2_log_table {
struct tcg_efi_spec_id_event header; /* TCG_PCR_EVENT actually */
struct tpm_digest_sizes digest_sizes[1];
uint8_t vendor_info_size;
struct tpm_2_vendor vendor;
struct tpm_2_log_entry entries[0]; /* Variable number of entries */
} __packed;
#endif
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