199 lines
6.6 KiB
C
199 lines
6.6 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2018 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_EFI_TPM_HEADER
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#define GRUB_EFI_TPM_HEADER 1
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#define EFI_TPM_GUID {0xf541796d, 0xa62e, 0x4954, {0xa7, 0x75, 0x95, 0x84, 0xf6, 0x1b, 0x9c, 0xdd }};
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#define EFI_TPM2_GUID {0x607f766c, 0x7455, 0x42be, {0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f }};
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#define TCG_ALG_SHA 0x00000004
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/* These structs are as defined in the TCG EFI Protocol Specification, family 2.0. */
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struct __TCG_VERSION
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{
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grub_efi_uint8_t Major;
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grub_efi_uint8_t Minor;
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grub_efi_uint8_t RevMajor;
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grub_efi_uint8_t RevMinor;
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};
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typedef struct __TCG_VERSION TCG_VERSION;
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struct __TCG_EFI_BOOT_SERVICE_CAPABILITY
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{
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/* Size of this structure. */
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grub_efi_uint8_t Size;
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TCG_VERSION StructureVersion;
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TCG_VERSION ProtocolSpecVersion;
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/* Hash algorithms supported by this TPM. */
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grub_efi_uint8_t HashAlgorithmBitmap;
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/* 1 if TPM present. */
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char TPMPresentFlag;
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/* 1 if TPM deactivated. */
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char TPMDeactivatedFlag;
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};
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typedef struct __TCG_EFI_BOOT_SERVICE_CAPABILITY TCG_EFI_BOOT_SERVICE_CAPABILITY;
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struct tdTCG_PCR_EVENT
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{
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grub_efi_uint32_t PCRIndex;
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grub_efi_uint32_t EventType;
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grub_efi_uint8_t digest[20];
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grub_efi_uint32_t EventSize;
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grub_efi_uint8_t Event[1];
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};
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typedef struct tdTCG_PCR_EVENT TCG_PCR_EVENT;
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struct grub_efi_tpm_protocol
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{
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grub_efi_status_t (*status_check) (struct grub_efi_tpm_protocol *this,
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TCG_EFI_BOOT_SERVICE_CAPABILITY *
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ProtocolCapability,
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grub_efi_uint32_t *TCGFeatureFlags,
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grub_efi_physical_address_t *
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EventLogLocation,
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grub_efi_physical_address_t *
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EventLogLastEntry);
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grub_efi_status_t (*hash_all) (struct grub_efi_tpm_protocol *this,
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grub_efi_uint8_t *HashData,
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grub_efi_uint64_t HashLen,
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grub_efi_uint32_t AlgorithmId,
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grub_efi_uint64_t *HashedDataLen,
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grub_efi_uint8_t **HashedDataResult);
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grub_efi_status_t (*log_event) (struct grub_efi_tpm_protocol *this,
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TCG_PCR_EVENT *TCGLogData,
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grub_efi_uint32_t *EventNumber,
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grub_efi_uint32_t Flags);
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grub_efi_status_t (*pass_through_to_tpm) (struct grub_efi_tpm_protocol *
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this,
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grub_efi_uint32_t
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TpmInputParameterBlockSize,
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grub_efi_uint8_t *
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TpmInputParameterBlock,
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grub_efi_uint32_t
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TpmOutputParameterBlockSize,
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grub_efi_uint8_t *
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TpmOutputParameterBlock);
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grub_efi_status_t (*log_extend_event) (struct grub_efi_tpm_protocol *this,
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grub_efi_physical_address_t HashData,
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grub_efi_uint64_t HashDataLen,
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grub_efi_uint32_t AlgorithmId,
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TCG_PCR_EVENT *TCGLogData,
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grub_efi_uint32_t *EventNumber,
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grub_efi_physical_address_t *
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EventLogLastEntry);
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};
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typedef struct grub_efi_tpm_protocol grub_efi_tpm_protocol_t;
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typedef grub_efi_uint32_t EFI_TCG2_EVENT_LOG_BITMAP;
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typedef grub_efi_uint32_t EFI_TCG2_EVENT_LOG_FORMAT;
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typedef grub_efi_uint32_t EFI_TCG2_EVENT_ALGORITHM_BITMAP;
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struct tdEFI_TCG2_VERSION
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{
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grub_efi_uint8_t Major;
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grub_efi_uint8_t Minor;
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} GRUB_PACKED;
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typedef struct tdEFI_TCG2_VERSION EFI_TCG2_VERSION;
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struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY
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{
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grub_efi_uint8_t Size;
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EFI_TCG2_VERSION StructureVersion;
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EFI_TCG2_VERSION ProtocolVersion;
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EFI_TCG2_EVENT_ALGORITHM_BITMAP HashAlgorithmBitmap;
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EFI_TCG2_EVENT_LOG_BITMAP SupportedEventLogs;
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grub_efi_boolean_t TPMPresentFlag;
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grub_efi_uint16_t MaxCommandSize;
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grub_efi_uint16_t MaxResponseSize;
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grub_efi_uint32_t ManufacturerID;
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grub_efi_uint32_t NumberOfPcrBanks;
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EFI_TCG2_EVENT_ALGORITHM_BITMAP ActivePcrBanks;
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};
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typedef struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY EFI_TCG2_BOOT_SERVICE_CAPABILITY;
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typedef grub_efi_uint32_t TCG_PCRINDEX;
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typedef grub_efi_uint32_t TCG_EVENTTYPE;
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struct tdEFI_TCG2_EVENT_HEADER
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{
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grub_efi_uint32_t HeaderSize;
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grub_efi_uint16_t HeaderVersion;
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TCG_PCRINDEX PCRIndex;
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TCG_EVENTTYPE EventType;
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} GRUB_PACKED;
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typedef struct tdEFI_TCG2_EVENT_HEADER EFI_TCG2_EVENT_HEADER;
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struct tdEFI_TCG2_EVENT
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{
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grub_efi_uint32_t Size;
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EFI_TCG2_EVENT_HEADER Header;
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grub_efi_uint8_t Event[1];
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} GRUB_PACKED;
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typedef struct tdEFI_TCG2_EVENT EFI_TCG2_EVENT;
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struct grub_efi_tpm2_protocol
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{
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grub_efi_status_t (*get_capability) (struct grub_efi_tpm2_protocol *this,
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EFI_TCG2_BOOT_SERVICE_CAPABILITY *
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ProtocolCapability);
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grub_efi_status_t (*get_event_log) (struct grub_efi_tpm2_protocol *this,
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EFI_TCG2_EVENT_LOG_FORMAT
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EventLogFormat,
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grub_efi_physical_address_t *
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EventLogLocation,
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grub_efi_physical_address_t *
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EventLogLastEntry,
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grub_efi_boolean_t * EventLogTruncated);
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grub_efi_status_t (*hash_log_extend_event) (struct grub_efi_tpm2_protocol *
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this, grub_efi_uint64_t Flags,
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grub_efi_physical_address_t
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DataToHash,
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grub_efi_uint64_t DataToHashLen,
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EFI_TCG2_EVENT *EfiTcgEvent);
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grub_efi_status_t (*submit_command) (struct grub_efi_tpm2_protocol *this,
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grub_efi_uint32_t
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InputParameterBlockSize,
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grub_efi_uint8_t *InputParameterBlock,
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grub_efi_uint32_t
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OutputParameterBlockSize,
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grub_efi_uint8_t *
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OutputParameterBlock);
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grub_efi_status_t (*get_active_pcr_banks) (struct grub_efi_tpm2_protocol *
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this,
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grub_efi_uint32_t *
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ActivePcrBanks);
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grub_efi_status_t (*set_active_pcr_banks) (struct grub_efi_tpm2_protocol *
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this,
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grub_efi_uint32_t
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ActivePcrBanks);
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grub_efi_status_t (*get_result_of_set_active_pcr_banks) (struct
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grub_efi_tpm2_protocol
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*this,
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grub_efi_uint32_t *
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OperationPresent,
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grub_efi_uint32_t *
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Response);
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};
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typedef struct grub_efi_tpm2_protocol grub_efi_tpm2_protocol_t;
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#endif
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