mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 23:51:33 +00:00
97707f12fd
Add TPM2 functions to support boot measurement. This includes starting up the TPM, initializing/appending the event log, and measuring the U-Boot version. Much of the code was used in the EFI subsystem, so remove it there and use the common functions. Signed-off-by: Eddie James <eajames@linux.ibm.com> For the API moving around from EFI -> u-boot core Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> For EFI testing Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
227 lines
7.3 KiB
C
227 lines
7.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Defines data structures and APIs that allow an OS to interact with UEFI
|
|
* firmware to query information about the device
|
|
*
|
|
* This file refers the following TCG specification.
|
|
* - TCG PC Client Platform Firmware Profile Specification
|
|
* https://trustedcomputinggroup.org/resource/pc-client-specific-platform-firmware-profile-specification/
|
|
*
|
|
* - TCG EFI Protocol Specification
|
|
* https://trustedcomputinggroup.org/resource/tcg-efi-protocol-specification/
|
|
*
|
|
* Copyright (c) 2020, Linaro Limited
|
|
*/
|
|
|
|
#if !defined _EFI_TCG2_PROTOCOL_H_
|
|
#define _EFI_TCG2_PROTOCOL_H_
|
|
|
|
#include <efi_api.h>
|
|
#include <tpm-v2.h>
|
|
|
|
/* TPMV2 only */
|
|
#define TCG2_EVENT_LOG_FORMAT_TCG_2 0x00000002
|
|
#define EFI_TCG2_EXTEND_ONLY 0x0000000000000001
|
|
#define PE_COFF_IMAGE 0x0000000000000010
|
|
|
|
#define EFI_TCG2_MAX_PCR_INDEX 23
|
|
|
|
/* Algorithm Registry */
|
|
#define EFI_TCG2_BOOT_HASH_ALG_SHA1 0x00000001
|
|
#define EFI_TCG2_BOOT_HASH_ALG_SHA256 0x00000002
|
|
#define EFI_TCG2_BOOT_HASH_ALG_SHA384 0x00000004
|
|
#define EFI_TCG2_BOOT_HASH_ALG_SHA512 0x00000008
|
|
#define EFI_TCG2_BOOT_HASH_ALG_SM3_256 0x00000010
|
|
|
|
#define EFI_TCG2_FINAL_EVENTS_TABLE_VERSION 1
|
|
|
|
#define TPM2_EVENT_LOG_SIZE CONFIG_EFI_TCG2_PROTOCOL_EVENTLOG_SIZE
|
|
|
|
typedef u32 efi_tcg_event_log_bitmap;
|
|
typedef u32 efi_tcg_event_log_format;
|
|
typedef u32 efi_tcg_event_algorithm_bitmap;
|
|
|
|
/**
|
|
* struct tdEFI_TCG2_VERSION - structure of EFI TCG2 version
|
|
* @major: major version
|
|
* @minor: minor version
|
|
*/
|
|
struct efi_tcg2_version {
|
|
u8 major;
|
|
u8 minor;
|
|
};
|
|
|
|
/**
|
|
* struct tdEFI_TCG2_EVENT_HEADER - structure of EFI TCG2 event header
|
|
* @header_size: size of the event header
|
|
* @header_version: header version
|
|
* @pcr_index: index of the PCR that is extended
|
|
* @event_type: type of the event that is extended
|
|
*/
|
|
struct efi_tcg2_event_header {
|
|
u32 header_size;
|
|
u16 header_version;
|
|
u32 pcr_index;
|
|
u32 event_type;
|
|
} __packed;
|
|
|
|
/**
|
|
* struct tdEFI_TCG2_EVENT - structure of EFI TCG2 event
|
|
* @size: total size of the event including the size component, the header
|
|
* and the event data
|
|
* @header: event header
|
|
* @event: event to add
|
|
*/
|
|
struct efi_tcg2_event {
|
|
u32 size;
|
|
struct efi_tcg2_event_header header;
|
|
u8 event[];
|
|
} __packed;
|
|
|
|
/**
|
|
* struct tdUEFI_IMAGE_LOAD_EVENT - structure of PE/COFF image measurement
|
|
* @image_location_in_memory: image address
|
|
* @image_length_in_memory: image size
|
|
* @image_link_time_address: image link time address
|
|
* @length_of_device_path: devive path size
|
|
* @device_path: device path
|
|
*/
|
|
struct uefi_image_load_event {
|
|
efi_physical_addr_t image_location_in_memory;
|
|
u64 image_length_in_memory;
|
|
u64 image_link_time_address;
|
|
u64 length_of_device_path;
|
|
struct efi_device_path device_path[];
|
|
};
|
|
|
|
/**
|
|
* struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY - protocol capability information
|
|
* @size: allocated size of the structure
|
|
* @structure_version: version of this structure
|
|
* @protocol_version: version of the EFI TCG2 protocol.
|
|
* @hash_algorithm_bitmap: supported hash algorithms
|
|
* @supported_event_logs: bitmap of supported event log formats
|
|
* @tpm_present_flag: false = TPM not present
|
|
* @max_command_size: max size (in bytes) of a command
|
|
* that can be sent to the TPM
|
|
* @max_response_size: max size (in bytes) of a response that
|
|
* can be provided by the TPM
|
|
* @manufacturer_id: 4-byte Vendor ID
|
|
* @number_of_pcr_banks: maximum number of PCR banks
|
|
* @active_pcr_banks: bitmap of currently active
|
|
* PCR banks (hashing algorithms).
|
|
*/
|
|
struct efi_tcg2_boot_service_capability {
|
|
u8 size;
|
|
struct efi_tcg2_version structure_version;
|
|
struct efi_tcg2_version protocol_version;
|
|
efi_tcg_event_algorithm_bitmap hash_algorithm_bitmap;
|
|
efi_tcg_event_log_bitmap supported_event_logs;
|
|
u8 tpm_present_flag;
|
|
u16 max_command_size;
|
|
u16 max_response_size;
|
|
u32 manufacturer_id;
|
|
u32 number_of_pcr_banks;
|
|
efi_tcg_event_algorithm_bitmap active_pcr_banks;
|
|
};
|
|
|
|
/* up to and including the vendor ID (manufacturer_id) field */
|
|
#define BOOT_SERVICE_CAPABILITY_MIN \
|
|
offsetof(struct efi_tcg2_boot_service_capability, number_of_pcr_banks)
|
|
|
|
/**
|
|
* struct tdEFI_TCG2_FINAL_EVENTS_TABLE - log entries after Get Event Log
|
|
* @version: version number for this structure
|
|
* @number_of_events: number of events recorded after invocation of
|
|
* GetEventLog()
|
|
* @event: List of events of type tcg_pcr_event2
|
|
*/
|
|
struct efi_tcg2_final_events_table {
|
|
u64 version;
|
|
u64 number_of_events;
|
|
struct tcg_pcr_event2 event[];
|
|
};
|
|
|
|
/**
|
|
* struct tdUEFI_VARIABLE_DATA - event log structure of UEFI variable
|
|
* @variable_name: The vendorGUID parameter in the
|
|
* GetVariable() API.
|
|
* @unicode_name_length: The length in CHAR16 of the Unicode name of
|
|
* the variable.
|
|
* @variable_data_length: The size of the variable data.
|
|
* @unicode_name: The CHAR16 unicode name of the variable
|
|
* without NULL-terminator.
|
|
* @variable_data: The data parameter of the efi variable
|
|
* in the GetVariable() API.
|
|
*/
|
|
struct efi_tcg2_uefi_variable_data {
|
|
efi_guid_t variable_name;
|
|
u64 unicode_name_length;
|
|
u64 variable_data_length;
|
|
u16 unicode_name[1];
|
|
u8 variable_data[1];
|
|
};
|
|
|
|
/**
|
|
* struct tdUEFI_HANDOFF_TABLE_POINTERS2 - event log structure of SMBOIS tables
|
|
* @table_description_size: size of table description
|
|
* @table_description: table description
|
|
* @number_of_tables: number of uefi configuration table
|
|
* @table_entry: uefi configuration table entry
|
|
*/
|
|
#define SMBIOS_HANDOFF_TABLE_DESC "SmbiosTable"
|
|
struct smbios_handoff_table_pointers2 {
|
|
u8 table_description_size;
|
|
u8 table_description[sizeof(SMBIOS_HANDOFF_TABLE_DESC)];
|
|
u64 number_of_tables;
|
|
struct efi_configuration_table table_entry[];
|
|
} __packed;
|
|
|
|
/**
|
|
* struct tdUEFI_GPT_DATA - event log structure of industry standard tables
|
|
* @uefi_partition_header: gpt partition header
|
|
* @number_of_partitions: the number of partition
|
|
* @partitions: partition entries
|
|
*/
|
|
struct efi_gpt_data {
|
|
gpt_header uefi_partition_header;
|
|
u64 number_of_partitions;
|
|
gpt_entry partitions[];
|
|
} __packed;
|
|
|
|
/**
|
|
* struct tdUEFI_PLATFORM_FIRMWARE_BLOB2
|
|
* @blob_description_size: Byte size of @data
|
|
* @data: Description data
|
|
*/
|
|
struct uefi_platform_firmware_blob2 {
|
|
u8 blob_description_size;
|
|
u8 data[];
|
|
} __packed;
|
|
|
|
struct efi_tcg2_protocol {
|
|
efi_status_t (EFIAPI * get_capability)(struct efi_tcg2_protocol *this,
|
|
struct efi_tcg2_boot_service_capability *capability);
|
|
efi_status_t (EFIAPI * get_eventlog)(struct efi_tcg2_protocol *this,
|
|
efi_tcg_event_log_format log_format,
|
|
u64 *event_log_location, u64 *event_log_last_entry,
|
|
bool *event_log_truncated);
|
|
efi_status_t (EFIAPI * hash_log_extend_event)(struct efi_tcg2_protocol *this,
|
|
u64 flags,
|
|
efi_physical_addr_t data_to_hash,
|
|
u64 data_to_hash_len,
|
|
struct efi_tcg2_event *efi_tcg_event);
|
|
efi_status_t (EFIAPI * submit_command)(struct efi_tcg2_protocol *this,
|
|
u32 input_parameter_block_size,
|
|
u8 *input_parameter_block,
|
|
u32 output_parameter_block_size,
|
|
u8 *output_parameter_block);
|
|
efi_status_t (EFIAPI * get_active_pcr_banks)(struct efi_tcg2_protocol *this,
|
|
u32 *active_pcr_banks);
|
|
efi_status_t (EFIAPI * set_active_pcr_banks)(struct efi_tcg2_protocol *this,
|
|
u32 active_pcr_banks);
|
|
efi_status_t (EFIAPI * get_result_of_set_active_pcr_banks)(struct efi_tcg2_protocol *this,
|
|
u32 *operation_present,
|
|
u32 *response);
|
|
};
|
|
#endif
|