1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #ifndef __LINUX_TPM_EVENTLOG_H__ 4 #define __LINUX_TPM_EVENTLOG_H__ 5 6 #include <crypto/hash_info.h> 7 8 #define TCG_EVENT_NAME_LEN_MAX 255 9 #define MAX_TEXT_EVENT 1000 /* Max event string length */ 10 #define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */ 11 12 #define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 0x1 13 #define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 0x2 14 15 #ifdef CONFIG_PPC64 16 #define do_endian_conversion(x) be32_to_cpu(x) 17 #else 18 #define do_endian_conversion(x) x 19 #endif 20 21 enum bios_platform_class { 22 BIOS_CLIENT = 0x00, 23 BIOS_SERVER = 0x01, 24 }; 25 26 struct tcpa_event { 27 u32 pcr_index; 28 u32 event_type; 29 u8 pcr_value[20]; /* SHA1 */ 30 u32 event_size; 31 u8 event_data[0]; 32 }; 33 34 enum tcpa_event_types { 35 PREBOOT = 0, 36 POST_CODE, 37 UNUSED, 38 NO_ACTION, 39 SEPARATOR, 40 ACTION, 41 EVENT_TAG, 42 SCRTM_CONTENTS, 43 SCRTM_VERSION, 44 CPU_MICROCODE, 45 PLATFORM_CONFIG_FLAGS, 46 TABLE_OF_DEVICES, 47 COMPACT_HASH, 48 IPL, 49 IPL_PARTITION_DATA, 50 NONHOST_CODE, 51 NONHOST_CONFIG, 52 NONHOST_INFO, 53 }; 54 55 struct tcpa_pc_event { 56 u32 event_id; 57 u32 event_size; 58 u8 event_data[0]; 59 }; 60 61 enum tcpa_pc_event_ids { 62 SMBIOS = 1, 63 BIS_CERT, 64 POST_BIOS_ROM, 65 ESCD, 66 CMOS, 67 NVRAM, 68 OPTION_ROM_EXEC, 69 OPTION_ROM_CONFIG, 70 OPTION_ROM_MICROCODE = 10, 71 S_CRTM_VERSION, 72 S_CRTM_CONTENTS, 73 POST_CONTENTS, 74 HOST_TABLE_OF_DEVICES, 75 }; 76 77 /* http://www.trustedcomputinggroup.org/tcg-efi-protocol-specification/ */ 78 79 struct tcg_efi_specid_event_algs { 80 u16 alg_id; 81 u16 digest_size; 82 } __packed; 83 84 struct tcg_efi_specid_event_head { 85 u8 signature[16]; 86 u32 platform_class; 87 u8 spec_version_minor; 88 u8 spec_version_major; 89 u8 spec_errata; 90 u8 uintnsize; 91 u32 num_algs; 92 struct tcg_efi_specid_event_algs digest_sizes[]; 93 } __packed; 94 95 struct tcg_pcr_event { 96 u32 pcr_idx; 97 u32 event_type; 98 u8 digest[20]; 99 u32 event_size; 100 u8 event[0]; 101 } __packed; 102 103 struct tcg_event_field { 104 u32 event_size; 105 u8 event[0]; 106 } __packed; 107 108 struct tpm2_digest { 109 u16 alg_id; 110 u8 digest[SHA512_DIGEST_SIZE]; 111 } __packed; 112 113 struct tcg_pcr_event2_head { 114 u32 pcr_idx; 115 u32 event_type; 116 u32 count; 117 struct tpm2_digest digests[]; 118 } __packed; 119 120 #endif 121