139 lines
2.5 KiB
C
139 lines
2.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __TPM_EVENTLOG_H__
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#define __TPM_EVENTLOG_H__
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#include <crypto/hash_info.h>
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#define TCG_EVENT_NAME_LEN_MAX 255
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#define MAX_TEXT_EVENT 1000 /* Max event string length */
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#define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */
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#define TPM2_ACTIVE_PCR_BANKS 3
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#ifdef CONFIG_PPC64
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#define do_endian_conversion(x) be32_to_cpu(x)
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#else
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#define do_endian_conversion(x) x
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#endif
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enum bios_platform_class {
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BIOS_CLIENT = 0x00,
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BIOS_SERVER = 0x01,
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};
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struct tcpa_event {
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u32 pcr_index;
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u32 event_type;
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u8 pcr_value[20]; /* SHA1 */
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u32 event_size;
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u8 event_data[0];
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};
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enum tcpa_event_types {
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PREBOOT = 0,
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POST_CODE,
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UNUSED,
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NO_ACTION,
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SEPARATOR,
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ACTION,
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EVENT_TAG,
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SCRTM_CONTENTS,
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SCRTM_VERSION,
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CPU_MICROCODE,
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PLATFORM_CONFIG_FLAGS,
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TABLE_OF_DEVICES,
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COMPACT_HASH,
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IPL,
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IPL_PARTITION_DATA,
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NONHOST_CODE,
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NONHOST_CONFIG,
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NONHOST_INFO,
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};
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struct tcpa_pc_event {
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u32 event_id;
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u32 event_size;
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u8 event_data[0];
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};
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enum tcpa_pc_event_ids {
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SMBIOS = 1,
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BIS_CERT,
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POST_BIOS_ROM,
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ESCD,
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CMOS,
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NVRAM,
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OPTION_ROM_EXEC,
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OPTION_ROM_CONFIG,
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OPTION_ROM_MICROCODE = 10,
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S_CRTM_VERSION,
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S_CRTM_CONTENTS,
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POST_CONTENTS,
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HOST_TABLE_OF_DEVICES,
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};
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/* http://www.trustedcomputinggroup.org/tcg-efi-protocol-specification/ */
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struct tcg_efi_specid_event_algs {
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u16 alg_id;
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u16 digest_size;
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} __packed;
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struct tcg_efi_specid_event {
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u8 signature[16];
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u32 platform_class;
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u8 spec_version_minor;
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u8 spec_version_major;
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u8 spec_errata;
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u8 uintnsize;
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u32 num_algs;
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struct tcg_efi_specid_event_algs digest_sizes[TPM2_ACTIVE_PCR_BANKS];
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u8 vendor_info_size;
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u8 vendor_info[0];
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} __packed;
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struct tcg_pcr_event {
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u32 pcr_idx;
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u32 event_type;
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u8 digest[20];
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u32 event_size;
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u8 event[0];
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} __packed;
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struct tcg_event_field {
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u32 event_size;
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u8 event[0];
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} __packed;
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struct tcg_pcr_event2 {
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u32 pcr_idx;
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u32 event_type;
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u32 count;
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struct tpm2_digest digests[TPM2_ACTIVE_PCR_BANKS];
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struct tcg_event_field event;
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} __packed;
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extern const struct seq_operations tpm2_binary_b_measurements_seqops;
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#if defined(CONFIG_ACPI)
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int tpm_read_log_acpi(struct tpm_chip *chip);
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#else
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static inline int tpm_read_log_acpi(struct tpm_chip *chip)
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{
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return -ENODEV;
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}
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#endif
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#if defined(CONFIG_OF)
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int tpm_read_log_of(struct tpm_chip *chip);
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#else
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static inline int tpm_read_log_of(struct tpm_chip *chip)
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{
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return -ENODEV;
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}
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#endif
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int tpm_bios_log_setup(struct tpm_chip *chip);
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void tpm_bios_log_teardown(struct tpm_chip *chip);
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#endif
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