c900a42eb0
If memory allocation fails, write an error message. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
1020 lines
33 KiB
C
1020 lines
33 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* efi_selftest_devicepath
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*
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* Copyright (c) 2020 Heinrich Schuchardt <xypron.glpk@gmx.de>
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*
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* Test the EFI_TCG2_PROTOCOL
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*/
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#include <efi_selftest.h>
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#include <efi_tcg2.h>
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/*
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* Include containing the miniapp.efi application.
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* Note that tcg2 selftest measures the PE/COFF image,
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* so we must have the pre-build efi application for
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* each architecture.
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*/
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#if defined(__arm__)
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#include "efi_miniapp_tcg2_arm.h"
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#elif defined(__aarch64__)
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#include "efi_miniapp_tcg2_arm64.h"
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#elif defined(__i386__)
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#include "efi_miniapp_tcg2_ia32.h"
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#elif defined(__x86_64__)
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#include "efi_miniapp_tcg2_x86_64.h"
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#elif defined(__riscv) && (__riscv_xlen == 32)
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#include "efi_miniapp_tcg2_riscv32.h"
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#elif defined(__riscv) && (__riscv_xlen == 64)
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#include "efi_miniapp_tcg2_riscv64.h"
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#endif
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#include <linux/unaligned/be_byteshift.h>
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#include <linux/unaligned/le_byteshift.h>
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#include <mapmem.h>
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#include <smbios.h>
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#include <tables_csum.h>
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static struct efi_boot_services *boottime;
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static const efi_guid_t guid_tcg2 = EFI_TCG2_PROTOCOL_GUID;
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/* Block size of compressed disk image */
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#define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8
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static efi_handle_t image_handle;
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/* Decompressed file image */
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static u8 *image;
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/* One 8 byte block of the compressed disk image */
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struct line {
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size_t addr;
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char *line;
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};
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/* Compressed file image */
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struct compressed_file_image {
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size_t length;
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struct line lines[];
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};
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static struct compressed_file_image img = EFI_ST_DISK_IMG;
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static struct efi_tcg2_event *efi_tcg2_event;
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static struct efi_runtime_services *runtime;
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#define BOOT_NAME_1000 u"Boot1000"
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#define BOOT_NAME_1001 u"Boot1001"
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#define BOOT_NAME_1002 u"Boot1002"
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#define DEFAULT_ATTR (EFI_VARIABLE_NON_VOLATILE | \
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EFI_VARIABLE_BOOTSERVICE_ACCESS | \
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EFI_VARIABLE_RUNTIME_ACCESS)
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/* "efidebug boot add -b 1000 test1000 virtio 0:1 /EFI/debian/grubaa64.efi" */
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static const u8 boot_1000[] = {
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0x01, 0x00, 0x00, 0x00, 0x8d, 0x00, 0x74, 0x00, 0x65, 0x00, 0x73, 0x00,
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0x74, 0x00, 0x30, 0x00, 0x00, 0x00, 0x01, 0x04, 0x14, 0x00, 0xb9, 0x73,
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0x1d, 0xe6, 0x84, 0xa3, 0xcc, 0x4a, 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3,
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0x62, 0x8b, 0x01, 0x04, 0x15, 0x00, 0x92, 0x37, 0x29, 0x63, 0xf5, 0xad,
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0x25, 0x93, 0xb9, 0x9f, 0x4e, 0x0e, 0x45, 0x5c, 0x1b, 0x1e, 0x00, 0x04,
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0x01, 0x2a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x57,
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0x5a, 0x47, 0xc2, 0x35, 0x27, 0x44, 0x47, 0x9f, 0x01, 0x67, 0xfe, 0xfa,
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0x1d, 0x06, 0xae, 0x02, 0x02, 0x04, 0x04, 0x36, 0x00, 0x5c, 0x00, 0x45,
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0x00, 0x46, 0x00, 0x49, 0x00, 0x5c, 0x00, 0x64, 0x00, 0x65, 0x00, 0x62,
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0x00, 0x69, 0x00, 0x61, 0x00, 0x6e, 0x00, 0x5c, 0x00, 0x67, 0x00, 0x72,
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0x00, 0x75, 0x00, 0x62, 0x00, 0x61, 0x00, 0x61, 0x00, 0x36, 0x00, 0x34,
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0x00, 0x2e, 0x00, 0x65, 0x00, 0x66, 0x00, 0x69, 0x00, 0x00, 0x00, 0x7f,
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0xff, 0x04, 0x00 };
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/* "efidebug boot add -b 1001 test1001 virtio 0:1 /EFI/debian/grubaa64.efi" */
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static const u8 boot_1001[] = {
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0x01, 0x00, 0x00, 0x00, 0x8d, 0x00, 0x74, 0x00, 0x65, 0x00, 0x73, 0x00,
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0x74, 0x00, 0x31, 0x00, 0x00, 0x00, 0x01, 0x04, 0x14, 0x00, 0xb9, 0x73,
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0x1d, 0xe6, 0x84, 0xa3, 0xcc, 0x4a, 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3,
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0x62, 0x8b, 0x01, 0x04, 0x15, 0x00, 0x92, 0x37, 0x29, 0x63, 0xf5, 0xad,
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0x25, 0x93, 0xb9, 0x9f, 0x4e, 0x0e, 0x45, 0x5c, 0x1b, 0x1e, 0x00, 0x04,
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0x01, 0x2a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x57,
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0x5a, 0x47, 0xc2, 0x35, 0x27, 0x44, 0x47, 0x9f, 0x01, 0x67, 0xfe, 0xfa,
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0x1d, 0x06, 0xae, 0x02, 0x02, 0x04, 0x04, 0x36, 0x00, 0x5c, 0x00, 0x45,
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0x00, 0x46, 0x00, 0x49, 0x00, 0x5c, 0x00, 0x64, 0x00, 0x65, 0x00, 0x62,
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0x00, 0x69, 0x00, 0x61, 0x00, 0x6e, 0x00, 0x5c, 0x00, 0x67, 0x00, 0x72,
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0x00, 0x75, 0x00, 0x62, 0x00, 0x61, 0x00, 0x61, 0x00, 0x36, 0x00, 0x34,
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0x00, 0x2e, 0x00, 0x65, 0x00, 0x66, 0x00, 0x69, 0x00, 0x00, 0x00, 0x7f,
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0xff, 0x04, 0x00 };
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/* "efidebug boot add -b 1002 test1002 virtio 0:1 /EFI/debian/grubaa64.efi" */
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static const u8 boot_1002[] = {
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0x01, 0x00, 0x00, 0x00, 0x8d, 0x00, 0x74, 0x00, 0x65, 0x00, 0x73, 0x00,
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0x74, 0x00, 0x32, 0x00, 0x00, 0x00, 0x01, 0x04, 0x14, 0x00, 0xb9, 0x73,
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0x1d, 0xe6, 0x84, 0xa3, 0xcc, 0x4a, 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3,
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0x62, 0x8b, 0x01, 0x04, 0x15, 0x00, 0x92, 0x37, 0x29, 0x63, 0xf5, 0xad,
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0x25, 0x93, 0xb9, 0x9f, 0x4e, 0x0e, 0x45, 0x5c, 0x1b, 0x1e, 0x00, 0x04,
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0x01, 0x2a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x57,
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0x5a, 0x47, 0xc2, 0x35, 0x27, 0x44, 0x47, 0x9f, 0x01, 0x67, 0xfe, 0xfa,
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0x1d, 0x06, 0xae, 0x02, 0x02, 0x04, 0x04, 0x36, 0x00, 0x5c, 0x00, 0x45,
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0x00, 0x46, 0x00, 0x49, 0x00, 0x5c, 0x00, 0x64, 0x00, 0x65, 0x00, 0x62,
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0x00, 0x69, 0x00, 0x61, 0x00, 0x6e, 0x00, 0x5c, 0x00, 0x67, 0x00, 0x72,
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0x00, 0x75, 0x00, 0x62, 0x00, 0x61, 0x00, 0x61, 0x00, 0x36, 0x00, 0x34,
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0x00, 0x2e, 0x00, 0x65, 0x00, 0x66, 0x00, 0x69, 0x00, 0x00, 0x00, 0x7f,
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0xff, 0x04, 0x00};
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/* "efidebug boot order 1002 1000 1001" */
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static u8 boot_order[] = {0x02, 0x10, 0x00, 0x10, 0x01, 0x10};
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static void *orig_smbios_table;
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static u64 dmi_addr = U32_MAX;
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#define SMBIOS_ENTRY_HEADER_SIZE 0x20
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/* smbios table for the measurement test */
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static u8 smbios_table_test[] = {
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0x5f, 0x53, 0x4d, 0x5f, 0x2c, 0x1f, 0x03, 0x00, 0x54, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x5f, 0x44, 0x4d, 0x49, 0x5f, 0xe4, 0x5c, 0x01,
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0x20, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00,
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0x01, 0x02, 0x00, 0x00, 0x03, 0x00, 0x80, 0x08, 0x01, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x0c, 0x15, 0x0a, 0xff, 0xff, 0x55, 0x2d, 0x42, 0x6f,
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0x6f, 0x74, 0x00, 0x32, 0x30, 0x32, 0x31, 0x2e, 0x31, 0x30, 0x2d, 0x72,
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0x63, 0x34, 0x2d, 0x30, 0x30, 0x30, 0x30, 0x35, 0x2d, 0x67, 0x37, 0x32,
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0x37, 0x63, 0x33, 0x66, 0x33, 0x32, 0x35, 0x39, 0x2d, 0x64, 0x69, 0x72,
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0x74, 0x79, 0x00, 0x31, 0x30, 0x2f, 0x30, 0x31, 0x2f, 0x32, 0x30, 0x32,
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0x31, 0x00, 0x00, 0x01, 0x1b, 0x01, 0x00, 0x01, 0x02, 0x00, 0x03, 0x31,
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0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x55, 0x6e, 0x6b, 0x6e, 0x6f, 0x77,
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0x6e, 0x00, 0x55, 0x6e, 0x6b, 0x6e, 0x6f, 0x77, 0x6e, 0x20, 0x50, 0x72,
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0x6f, 0x64, 0x75, 0x63, 0x74, 0x00, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
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0x37, 0x38, 0x00, 0x00, 0x02, 0x0e, 0x02, 0x00, 0x01, 0x02, 0x00, 0x04,
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0x03, 0x01, 0x01, 0x01, 0x00, 0x0a, 0x55, 0x6e, 0x6b, 0x6e, 0x6f, 0x77,
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0x6e, 0x00, 0x55, 0x6e, 0x6b, 0x6e, 0x6f, 0x77, 0x6e, 0x20, 0x50, 0x72,
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0x6f, 0x64, 0x75, 0x63, 0x74, 0x00, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
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0x33, 0x33, 0x00, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x00,
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0x00, 0x03, 0x15, 0x03, 0x00, 0x01, 0x03, 0x00, 0x02, 0x03, 0x03, 0x03,
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0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x6e,
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0x6b, 0x6e, 0x6f, 0x77, 0x6e, 0x00, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
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0x37, 0x38, 0x00, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x00,
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0x00, 0x04, 0x30, 0x04, 0x00, 0x00, 0x03, 0x02, 0x01, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x01, 0x06, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x02, 0x03, 0x04,
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0x04, 0x04, 0x08, 0x00, 0x00, 0x02, 0x00, 0x08, 0x00, 0x08, 0x00, 0x01,
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0x00, 0x55, 0x6e, 0x6b, 0x6e, 0x6f, 0x77, 0x6e, 0x00, 0x31, 0x32, 0x33,
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0x34, 0x35, 0x36, 0x37, 0x38, 0x00, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
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0x33, 0x33, 0x00, 0x35, 0x35, 0x35, 0x35, 0x35, 0x35, 0x35, 0x35, 0x00,
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0x00, 0x20, 0x0b, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x7f, 0x04, 0x06, 0x00, 0x00, 0x00
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};
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#define IDX_ARRAY_SZ 3 /* support 24 PCRs */
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#define TPM2_CMD_BUF_SIZE 64
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/* TPM command is big endian */
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#define __MSB(x) ((x) >> 8)
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#define __LSB(x) ((x) & 0xFF)
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#define tpm_u16(x) __MSB(x), __LSB(x)
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#define tpm_u32(x) tpm_u16((x) >> 16), tpm_u16((x) & 0xFFFF)
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#define TPM2_PCR_READ_HEADER_SIZE 30
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static u8 (*pcrs)[TPM2_SHA256_DIGEST_SIZE];
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static u8 expected_pcrs[EFI_TCG2_MAX_PCR_INDEX + 1][TPM2_SHA256_DIGEST_SIZE] = {
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{0x91, 0x21, 0x37, 0xc7, 0x1a, 0x49, 0x19, 0xc8,
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0xf1, 0xfb, 0xa9, 0x84, 0x5c, 0x65, 0xa9, 0xdd,
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0x7b, 0xb9, 0xfe, 0xa1, 0xcd, 0x64, 0x49, 0xdd,
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0xed, 0xe2, 0x65, 0x82, 0xc5, 0x3e, 0xf4, 0xc4},
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{0xf5, 0x79, 0xf3, 0x20, 0x62, 0x6e, 0x8b, 0x58,
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0x62, 0xa3, 0x4e, 0x2f, 0xb7, 0x10, 0xac, 0x34,
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0x4e, 0x68, 0x94, 0x37, 0x87, 0x29, 0xc4, 0xbe,
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0xa3, 0xc4, 0xd9, 0x14, 0x2b, 0x66, 0x79, 0x9b},
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{0x3d, 0x45, 0x8c, 0xfe, 0x55, 0xcc, 0x03, 0xea,
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0x1f, 0x44, 0x3f, 0x15, 0x62, 0xbe, 0xec, 0x8d,
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0xf5, 0x1c, 0x75, 0xe1, 0x4a, 0x9f, 0xcf, 0x9a,
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0x72, 0x34, 0xa1, 0x3f, 0x19, 0x8e, 0x79, 0x69},
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{0x3d, 0x45, 0x8c, 0xfe, 0x55, 0xcc, 0x03, 0xea,
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0x1f, 0x44, 0x3f, 0x15, 0x62, 0xbe, 0xec, 0x8d,
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0xf5, 0x1c, 0x75, 0xe1, 0x4a, 0x9f, 0xcf, 0x9a,
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0x72, 0x34, 0xa1, 0x3f, 0x19, 0x8e, 0x79, 0x69},
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/* PCR[4] is different per architecture */
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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|
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{0x3d, 0x45, 0x8c, 0xfe, 0x55, 0xcc, 0x03, 0xea,
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0x1f, 0x44, 0x3f, 0x15, 0x62, 0xbe, 0xec, 0x8d,
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0xf5, 0x1c, 0x75, 0xe1, 0x4a, 0x9f, 0xcf, 0x9a,
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0x72, 0x34, 0xa1, 0x3f, 0x19, 0x8e, 0x79, 0x69},
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|
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/* PCR[6] is different per architecture */
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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|
|
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{0x96, 0x74, 0xae, 0xcd, 0x3f, 0x40, 0xb4, 0xa9,
|
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0x36, 0xae, 0x19, 0xc8, 0x84, 0x8a, 0xb9, 0x5a,
|
|
0x87, 0x99, 0xd8, 0x89, 0x7f, 0xfc, 0x40, 0x48,
|
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0x05, 0x99, 0x65, 0x2e, 0x55, 0xd4, 0x93, 0x32},
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|
|
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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|
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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|
|
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
|
|
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
|
|
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
|
|
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
|
|
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
|
|
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
|
|
{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
|
|
|
|
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
|
|
};
|
|
|
|
/*
|
|
* PCR[4] and PCR[6] have the PE/COFF image measurement,
|
|
* this PCRs have different value in each architecture.
|
|
*/
|
|
#if defined(__arm__)
|
|
static u8 expected_pcrs_per_arch[][TPM2_SHA256_DIGEST_SIZE] = {
|
|
/* PCR[4] */
|
|
{0xcd, 0xa2, 0x06, 0xad, 0x83, 0x9b, 0x8f, 0x92,
|
|
0x01, 0xf9, 0xc8, 0x3d, 0xc9, 0x54, 0x66, 0xb3,
|
|
0x97, 0x35, 0x88, 0xe1, 0xea, 0xd3, 0x1a, 0xd6,
|
|
0x56, 0xee, 0x43, 0x1c, 0xdb, 0x4b, 0xf9, 0x1f},
|
|
/* PCR[6] */
|
|
{0x9c, 0xb8, 0x9d, 0x4a, 0xf6, 0x63, 0x95, 0xb0,
|
|
0x95, 0xfe, 0x44, 0x30, 0x0f, 0x3a, 0x0b, 0x7c,
|
|
0xef, 0xc7, 0xb6, 0x6a, 0x59, 0xae, 0xcb, 0xf6,
|
|
0xbd, 0x2d, 0xb5, 0xb9, 0xb4, 0x95, 0x7d, 0xaf}
|
|
};
|
|
#elif defined(__aarch64__)
|
|
static u8 expected_pcrs_per_arch[][TPM2_SHA256_DIGEST_SIZE] = {
|
|
/* PCR[4] */
|
|
{0x69, 0xdb, 0x01, 0x5e, 0x07, 0xed, 0x9c, 0xbb,
|
|
0x27, 0x65, 0xb1, 0xf0, 0x7b, 0x04, 0xbc, 0x31,
|
|
0xd1, 0xec, 0x00, 0xe4, 0xe1, 0x49, 0xdb, 0x1e,
|
|
0x8b, 0x2d, 0xa2, 0x26, 0xb5, 0x8d, 0x07, 0xe2},
|
|
/* PCR[6] */
|
|
{0x53, 0x1b, 0x27, 0xb2, 0x6f, 0x2d, 0xab, 0x9b,
|
|
0x6f, 0xbc, 0xd1, 0x8f, 0xc9, 0x14, 0x48, 0xe7,
|
|
0x6d, 0x1b, 0xfb, 0x1b, 0x53, 0xc5, 0x8e, 0xf4,
|
|
0x41, 0x50, 0x79, 0x24, 0x66, 0x57, 0x7b, 0xf8}
|
|
};
|
|
#elif defined(__i386__)
|
|
static u8 expected_pcrs_per_arch[][TPM2_SHA256_DIGEST_SIZE] = {
|
|
/* PCR[4] */
|
|
{0xec, 0x5e, 0xdb, 0x68, 0x13, 0x48, 0x36, 0x0a,
|
|
0x3a, 0xbc, 0x7b, 0x7b, 0xbc, 0x74, 0x7a, 0xa5,
|
|
0x55, 0xea, 0xb9, 0x09, 0x6a, 0x6e, 0xc3, 0x21,
|
|
0x51, 0x46, 0x22, 0xd2, 0x9d, 0xc9, 0xd5, 0x6a},
|
|
/* PCR[6] */
|
|
{0x26, 0x14, 0xe7, 0xde, 0x91, 0xd1, 0xf3, 0xde,
|
|
0x7a, 0xc2, 0x78, 0xaf, 0x4b, 0x2e, 0x05, 0x9d,
|
|
0x35, 0x17, 0xee, 0xcc, 0x0e, 0x77, 0x8d, 0x3f,
|
|
0x7e, 0x20, 0x75, 0xfa, 0xbc, 0xbc, 0x24, 0x3e}
|
|
};
|
|
#elif defined(__x86_64__)
|
|
static u8 expected_pcrs_per_arch[][TPM2_SHA256_DIGEST_SIZE] = {
|
|
/* PCR[4] */
|
|
{0x9a, 0x75, 0x99, 0x8b, 0x74, 0x45, 0xb6, 0x26,
|
|
0x50, 0xe0, 0xbb, 0xfa, 0x2a, 0xa6, 0x19, 0xec,
|
|
0x97, 0x12, 0x0c, 0xb5, 0xc8, 0x2a, 0xfe, 0xe5,
|
|
0x29, 0xc8, 0xd3, 0x98, 0xe9, 0xd1, 0x9d, 0xd5},
|
|
/* PCR[6] */
|
|
{0xa2, 0xa2, 0xd3, 0xa7, 0x84, 0xc2, 0x95, 0x2a,
|
|
0xab, 0x6f, 0xe7, 0xe8, 0x86, 0x9f, 0x99, 0xc6,
|
|
0x6a, 0x8c, 0xcc, 0x5c, 0xb8, 0x83, 0xfa, 0x86,
|
|
0x56, 0x5e, 0x91, 0x17, 0x0b, 0x5f, 0x54, 0xa8}
|
|
};
|
|
#elif defined(__riscv) && (__riscv_xlen == 32)
|
|
static u8 expected_pcrs_per_arch[][TPM2_SHA256_DIGEST_SIZE] = {
|
|
/* PCR[4] */
|
|
{0x64, 0xe9, 0x25, 0xb3, 0xd8, 0x33, 0xb3, 0x1b,
|
|
0x74, 0x0c, 0x81, 0x45, 0xef, 0x61, 0xf1, 0x87,
|
|
0xef, 0x65, 0x67, 0x28, 0x1a, 0x54, 0x97, 0xb2,
|
|
0xd3, 0x62, 0x00, 0xe7, 0xb6, 0x7a, 0xd5, 0x8e},
|
|
/* PCR[6] */
|
|
{0x82, 0xab, 0xc5, 0x6a, 0xbf, 0x08, 0x43, 0x3f,
|
|
0x85, 0xbd, 0x8f, 0x8e, 0x23, 0x62, 0x48, 0x4a,
|
|
0x44, 0x53, 0xf0, 0xae, 0x8d, 0x4c, 0xda, 0x04,
|
|
0x89, 0x9c, 0x0b, 0x81, 0x3a, 0x53, 0xf3, 0xac}
|
|
};
|
|
#elif defined(__riscv) && (__riscv_xlen == 64)
|
|
static u8 expected_pcrs_per_arch[][TPM2_SHA256_DIGEST_SIZE] = {
|
|
/* PCR[4] */
|
|
{0x9b, 0x5f, 0x10, 0x24, 0x28, 0x5d, 0x7d, 0x1f,
|
|
0x9f, 0xee, 0xe9, 0x90, 0xf1, 0x7a, 0x03, 0xb1,
|
|
0x68, 0x7b, 0x28, 0x45, 0x98, 0x5e, 0xf5, 0x5e,
|
|
0xc1, 0x22, 0x61, 0x8c, 0x2f, 0xb5, 0xbf, 0x80},
|
|
/* PCR[6] */
|
|
{0x6d, 0x16, 0x17, 0xf4, 0x9a, 0xa8, 0x49, 0xc2,
|
|
0xf4, 0x9c, 0x35, 0x30, 0x0c, 0xde, 0x65, 0xdb,
|
|
0xd3, 0x37, 0x9c, 0xe2, 0x9f, 0x14, 0x81, 0x74,
|
|
0xc3, 0x94, 0x8a, 0x9e, 0x26, 0xbf, 0xfb, 0xb2}
|
|
};
|
|
#endif
|
|
|
|
struct boot_variable {
|
|
u16 name[16];
|
|
u8 *buf;
|
|
efi_uintn_t size;
|
|
u32 attr;
|
|
const u8 *test_data;
|
|
efi_uintn_t test_data_size;
|
|
};
|
|
|
|
static struct boot_variable boot_variable_test[] = {
|
|
{u"BootOrder", NULL, 0, DEFAULT_ATTR, boot_order, sizeof(boot_order)},
|
|
{BOOT_NAME_1000, NULL, 0, DEFAULT_ATTR, boot_1000, sizeof(boot_1000)},
|
|
{BOOT_NAME_1001, NULL, 0, DEFAULT_ATTR, boot_1001, sizeof(boot_1001)},
|
|
{BOOT_NAME_1002, NULL, 0, DEFAULT_ATTR, boot_1002, sizeof(boot_1002)},
|
|
};
|
|
|
|
/*
|
|
* efi_status_t decompress() - Decompress the disk image.
|
|
*
|
|
* @image decompressed disk image
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t decompress(u8 **image)
|
|
{
|
|
u8 *buf;
|
|
size_t i;
|
|
size_t addr;
|
|
size_t len;
|
|
efi_status_t ret;
|
|
|
|
ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length,
|
|
(void **)&buf);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Out of memory\n");
|
|
return ret;
|
|
}
|
|
boottime->set_mem(buf, img.length, 0);
|
|
|
|
for (i = 0; ; ++i) {
|
|
if (!img.lines[i].line)
|
|
break;
|
|
addr = img.lines[i].addr;
|
|
len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE;
|
|
if (addr + len > img.length)
|
|
len = img.length - addr;
|
|
boottime->copy_mem(buf + addr, img.lines[i].line, len);
|
|
}
|
|
*image = buf;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* efi_status_t setup_boot_variable() - configure dummy boot variables
|
|
*
|
|
* Preexisting variable values are saved and will be restored by
|
|
* calling restore_boot_variable().
|
|
*
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t setup_boot_variable(void)
|
|
{
|
|
efi_status_t ret;
|
|
u32 i;
|
|
efi_uintn_t size;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(boot_variable_test); i++) {
|
|
size = 0;
|
|
ret = runtime->get_variable(boot_variable_test[i].name,
|
|
&efi_global_variable_guid,
|
|
&boot_variable_test[i].attr,
|
|
&size,
|
|
NULL);
|
|
if (ret == EFI_BUFFER_TOO_SMALL) {
|
|
/* Variable exists, save the current value */
|
|
boot_variable_test[i].size = size;
|
|
ret = boottime->allocate_pool(EFI_LOADER_DATA,
|
|
boot_variable_test[i].size,
|
|
(void **)&boot_variable_test[i].buf);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to allocate buffer for boot variable\n");
|
|
return ret;
|
|
}
|
|
ret = runtime->get_variable(boot_variable_test[i].name,
|
|
&efi_global_variable_guid,
|
|
&boot_variable_test[i].attr,
|
|
&boot_variable_test[i].size,
|
|
boot_variable_test[i].buf);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to get current boot variable\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* set boot variable for the measurement test */
|
|
ret = runtime->set_variable(boot_variable_test[i].name,
|
|
&efi_global_variable_guid,
|
|
boot_variable_test[i].attr,
|
|
boot_variable_test[i].test_data_size,
|
|
boot_variable_test[i].test_data);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to set test boot variable(%d)n", i);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* efi_status_t restore_boot_variable() - restore original values
|
|
*
|
|
* Restore the variable values saved in setup_boot_variable().
|
|
*
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t restore_boot_variable(void)
|
|
{
|
|
int i;
|
|
efi_status_t ret;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(boot_variable_test); i++) {
|
|
if (boot_variable_test[i].buf) {
|
|
ret = runtime->set_variable(boot_variable_test[i].name,
|
|
&efi_global_variable_guid,
|
|
boot_variable_test[i].attr,
|
|
boot_variable_test[i].size,
|
|
boot_variable_test[i].buf);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to restore boot variable\n");
|
|
return ret;
|
|
}
|
|
ret = boottime->free_pool(boot_variable_test[i].buf);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to free boot variable\n");
|
|
return ret;
|
|
}
|
|
} else {
|
|
/* delete the variable used only for testing */
|
|
ret = runtime->set_variable(boot_variable_test[i].name,
|
|
&efi_global_variable_guid,
|
|
0, 0, NULL);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to delete boot variable\n");
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* void *find_smbios_table() - Find smbios table
|
|
*
|
|
* @systable system table
|
|
* Return: status code
|
|
*/
|
|
static void *find_smbios_table(const struct efi_system_table *systable)
|
|
{
|
|
u32 i;
|
|
|
|
for (i = 0; i < systable->nr_tables; i++) {
|
|
if (!guidcmp(&smbios_guid, &systable->tables[i].guid))
|
|
return systable->tables[i].table;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* efi_status_t setup_smbios_table() - Prepare the dummy SMBIOS table
|
|
*
|
|
* @systable system table
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t setup_smbios_table(const struct efi_system_table *systable)
|
|
{
|
|
struct smbios_entry *se;
|
|
efi_status_t ret;
|
|
/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
|
|
void *dmi;
|
|
char *istart;
|
|
int isize;
|
|
|
|
if (sizeof(smbios_table_test) > EFI_PAGE_SIZE)
|
|
return EFI_OUT_OF_RESOURCES;
|
|
|
|
orig_smbios_table = find_smbios_table(systable);
|
|
|
|
/* Reserve 4kiB page for SMBIOS */
|
|
ret = boottime->allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
|
|
EFI_RUNTIME_SERVICES_DATA, 1, &dmi_addr);
|
|
|
|
if (ret != EFI_SUCCESS) {
|
|
/* Could not find space in lowmem, use highmem instead */
|
|
ret = boottime->allocate_pages(EFI_ALLOCATE_ANY_PAGES,
|
|
EFI_RUNTIME_SERVICES_DATA, 1,
|
|
&dmi_addr);
|
|
|
|
if (ret != EFI_SUCCESS)
|
|
return ret;
|
|
}
|
|
|
|
dmi = (void *)(uintptr_t)dmi_addr;
|
|
se = dmi;
|
|
boottime->copy_mem(se, smbios_table_test, sizeof(smbios_table_test));
|
|
|
|
/* update smbios table start address */
|
|
se->struct_table_address = (uintptr_t)((u8 *)dmi + SMBIOS_ENTRY_HEADER_SIZE);
|
|
|
|
/* calculate checksums */
|
|
istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET;
|
|
isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
|
|
se->intermediate_checksum = table_compute_checksum(istart, isize);
|
|
se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
|
|
|
|
/* Install SMBIOS information as configuration table */
|
|
ret = boottime->install_configuration_table(&smbios_guid, dmi);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Cannot install SMBIOS table\n");
|
|
boottime->free_pages(dmi_addr, 1);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* efi_st_tcg2_setup() - setup test
|
|
*
|
|
* @handle: handle of the loaded image
|
|
* @systable: system table
|
|
* Return: status code
|
|
*/
|
|
static int efi_st_tcg2_setup(const efi_handle_t img_handle,
|
|
const struct efi_system_table *systable)
|
|
{
|
|
efi_status_t ret;
|
|
struct uefi_image_load_event image_load_event;
|
|
|
|
image_handle = img_handle;
|
|
boottime = systable->boottime;
|
|
runtime = systable->runtime;
|
|
|
|
/* Load the application image into memory */
|
|
decompress(&image);
|
|
|
|
ret = boottime->allocate_pool(EFI_LOADER_DATA,
|
|
sizeof(struct efi_tcg2_event) +
|
|
sizeof(struct uefi_image_load_event),
|
|
(void **)&efi_tcg2_event);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Out of memory\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
efi_tcg2_event->size = sizeof(struct efi_tcg2_event) +
|
|
sizeof(struct uefi_image_load_event);
|
|
efi_tcg2_event->header.header_size = sizeof(struct efi_tcg2_event_header);
|
|
efi_tcg2_event->header.header_version = 1;
|
|
efi_tcg2_event->header.pcr_index = 6;
|
|
efi_tcg2_event->header.event_type = EV_EFI_RUNTIME_SERVICES_DRIVER;
|
|
image_load_event.image_location_in_memory = 0x12345678;
|
|
image_load_event.image_length_in_memory = 0x300000;
|
|
image_load_event.image_link_time_address = 0x87654321;
|
|
image_load_event.length_of_device_path = 0;
|
|
boottime->copy_mem(efi_tcg2_event->event, &image_load_event,
|
|
sizeof(struct uefi_image_load_event));
|
|
|
|
ret = setup_boot_variable();
|
|
if (ret != EFI_SUCCESS)
|
|
return EFI_ST_FAILURE;
|
|
|
|
ret = setup_smbios_table(systable);
|
|
if (ret != EFI_SUCCESS)
|
|
return EFI_ST_FAILURE;
|
|
|
|
ret = boottime->allocate_pool(EFI_LOADER_DATA,
|
|
(EFI_TCG2_MAX_PCR_INDEX + 1) *
|
|
TPM2_SHA256_DIGEST_SIZE,
|
|
(void **)&pcrs);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Out of memory\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
boottime->set_mem(pcrs, (EFI_TCG2_MAX_PCR_INDEX + 1) * TPM2_SHA256_DIGEST_SIZE, 0);
|
|
|
|
/* setup expected PCRs per architecture */
|
|
boottime->copy_mem(&expected_pcrs[4], &expected_pcrs_per_arch[0], TPM2_SHA256_DIGEST_SIZE);
|
|
boottime->copy_mem(&expected_pcrs[6], &expected_pcrs_per_arch[1], TPM2_SHA256_DIGEST_SIZE);
|
|
|
|
return EFI_ST_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* efi_status_t get_manufacturer_id() - Get manufacturer_id through submit_command API
|
|
*
|
|
* @tcg2 tcg2 protocol
|
|
* @manufacturer_id pointer to the manufacturer_id
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t get_manufacturer_id(struct efi_tcg2_protocol *tcg2, u32 *manufacturer_id)
|
|
{
|
|
efi_status_t ret;
|
|
u8 cmd[TPM2_CMD_BUF_SIZE] = {
|
|
tpm_u16(TPM2_ST_NO_SESSIONS), /* TAG */
|
|
tpm_u32(22), /* Length */
|
|
tpm_u32(TPM2_CC_GET_CAPABILITY), /* Command code */
|
|
|
|
tpm_u32(TPM2_CAP_TPM_PROPERTIES), /* Capability */
|
|
tpm_u32(TPM2_PT_MANUFACTURER), /* Property */
|
|
tpm_u32(1), /* Property count */
|
|
};
|
|
u8 resp[TPM2_CMD_BUF_SIZE];
|
|
unsigned int value_off;
|
|
|
|
ret = tcg2->submit_command(tcg2, 22, cmd,
|
|
TPM2_CMD_BUF_SIZE, resp);
|
|
if (ret != EFI_SUCCESS)
|
|
return ret;
|
|
|
|
/*
|
|
* In the response buffer, the properties are located after the:
|
|
* tag (u16), response size (u32), response code (u32),
|
|
* YES/NO flag (u8), TPM_CAP (u32).
|
|
* The value is located after count (u32), property (u32).
|
|
*/
|
|
value_off = sizeof(u16) + sizeof(u32) + sizeof(u32) +
|
|
sizeof(u8) + sizeof(u32) + sizeof(u32) + sizeof(u32);
|
|
*manufacturer_id = get_unaligned_be32(&resp[value_off]);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* efi_status_t get_manufacturer_id_buffer_small() - call submit_command with small resp buffer
|
|
*
|
|
* @tcg2 tcg2 protocol
|
|
* @manufacturer_id pointer to the manufacturer_id
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t get_manufacturer_id_buffer_small(struct efi_tcg2_protocol *tcg2)
|
|
{
|
|
efi_status_t ret;
|
|
u8 cmd[TPM2_CMD_BUF_SIZE] = {
|
|
tpm_u16(TPM2_ST_NO_SESSIONS), /* TAG */
|
|
tpm_u32(22), /* Length */
|
|
tpm_u32(TPM2_CC_GET_CAPABILITY), /* Command code */
|
|
|
|
tpm_u32(TPM2_CAP_TPM_PROPERTIES), /* Capability */
|
|
tpm_u32(TPM2_PT_MANUFACTURER), /* Property */
|
|
tpm_u32(1), /* Property count */
|
|
};
|
|
u8 resp[1]; /* set smaller buffer than expected */
|
|
|
|
ret = tcg2->submit_command(tcg2, 22, cmd, 1, resp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* efi_status_t read_pcr() - Read the PCR from the TPM device
|
|
*
|
|
* @tcg2 tcg2 protocol
|
|
* @idx pcr index to read
|
|
* Return: status code
|
|
*/
|
|
static efi_status_t read_pcr(struct efi_tcg2_protocol *tcg2, u32 idx)
|
|
{
|
|
efi_status_t ret;
|
|
u32 cmd_len = 17 + IDX_ARRAY_SZ;
|
|
u8 cmd[TPM2_CMD_BUF_SIZE] = {
|
|
tpm_u16(TPM2_ST_NO_SESSIONS), /* TAG */
|
|
tpm_u32(cmd_len), /* Length */
|
|
tpm_u32(TPM2_CC_PCR_READ), /* Command code */
|
|
/* TPML_PCR_SELECTION */
|
|
tpm_u32(1), /* Number of selections */
|
|
tpm_u16(TPM2_ALG_SHA256), /* Algorithm of the hash */
|
|
IDX_ARRAY_SZ, /* Array size for selection */
|
|
/* bitmap(idx), Selected PCR bitmap */
|
|
};
|
|
u8 resp[TPM2_CMD_BUF_SIZE];
|
|
u32 pcr_sel_idx = idx / 8;
|
|
u8 pcr_sel_bit = BIT(idx % 8);
|
|
|
|
cmd[17 + pcr_sel_idx] = pcr_sel_bit;
|
|
ret = tcg2->submit_command(tcg2, cmd_len, cmd,
|
|
TPM2_CMD_BUF_SIZE, resp);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("tcg2->submit_command fail to read PCR\n");
|
|
return ret;
|
|
}
|
|
|
|
boottime->copy_mem(pcrs[idx], &resp[TPM2_PCR_READ_HEADER_SIZE],
|
|
TPM2_SHA256_DIGEST_SIZE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* int validate_pcrs() - Compare the expected and actual pcrs
|
|
*
|
|
* Return: status code
|
|
*/
|
|
static int validate_pcrs(void)
|
|
{
|
|
u32 i;
|
|
|
|
/*
|
|
* - Skip PCR[0] validation. PCR[0] contains U-Boot version measurement
|
|
* it contains the commit hash, so the measurement varies every build
|
|
* with different commit hash.
|
|
* - Skip PCR[7] validation. PCR[7] contains UEFI Secure Boot variables
|
|
* measurement. These variables can not be updated through efi_selftest and
|
|
* vary depending on the platform.
|
|
* - Skip PCR[17..22] validation, they are not used in TCG PC Client
|
|
* Platform Firmware Profile Specification
|
|
*/
|
|
for (i = 1; i < (EFI_TCG2_MAX_PCR_INDEX + 1); i++) {
|
|
if (i == 7 || (i > 16 && i < 23))
|
|
continue; /* skip validation */
|
|
|
|
if (memcmp(pcrs[i], expected_pcrs[i], TPM2_SHA256_DIGEST_SIZE)) {
|
|
efi_st_error("PCR[%d] is not the expected value\n", i);
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
|
|
return EFI_ST_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* efi_st_tcg2_execute() - execute test
|
|
*
|
|
* Call EFI_TCG2_PROTOCOL services and check the
|
|
* Measured Boot behavior.
|
|
*
|
|
* Return: status code
|
|
*/
|
|
static int efi_st_tcg2_execute(void)
|
|
{
|
|
struct efi_tcg2_protocol *tcg2;
|
|
struct efi_tcg2_boot_service_capability capability;
|
|
efi_status_t ret;
|
|
u32 active_pcr_banks;
|
|
u64 eventlog, eventlog_last_entry;
|
|
bool eventlog_truncated;
|
|
efi_handle_t handle;
|
|
efi_uintn_t exit_data_size = 0;
|
|
u16 *exit_data = NULL;
|
|
u32 i;
|
|
u32 manufacturer_id;
|
|
|
|
ret = boottime->locate_protocol(&guid_tcg2, NULL, (void **)&tcg2);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("TCG2 protocol is not available.\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* EFI_TCG2_PROTOCOL.GetCapability test */
|
|
capability.size = sizeof(struct efi_tcg2_boot_service_capability) - 1;
|
|
ret = tcg2->get_capability(tcg2, &capability);
|
|
if (ret != EFI_BUFFER_TOO_SMALL) {
|
|
efi_st_error("tcg2->get_capability on small buffer failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
capability.size = sizeof(struct efi_tcg2_boot_service_capability);
|
|
ret = tcg2->get_capability(tcg2, &capability);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("tcg2->get_capability failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
if (!capability.tpm_present_flag) {
|
|
efi_st_error("TPM not present\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
efi_st_printf("TPM supports 0x%.8x event logs\n",
|
|
capability.supported_event_logs);
|
|
|
|
/* EFI_TCG2_PROTOCOL.GetActivePcrBanks test */
|
|
ret = tcg2->get_active_pcr_banks(tcg2, &active_pcr_banks);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("tcg2->get_active_pcr_banks failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
if (active_pcr_banks != capability.active_pcr_banks) {
|
|
efi_st_error("tcg2->get_active_pcr_banks return wrong value\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* EFI_TCG2_PROTOCOL.HashLogExtendEvent test */
|
|
ret = tcg2->hash_log_extend_event(tcg2, EFI_TCG2_EXTEND_ONLY,
|
|
(uintptr_t)image,
|
|
img.length, efi_tcg2_event);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("tcg2->hash_log_extend_event(EXTEND_ONLY) failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
ret = tcg2->hash_log_extend_event(tcg2, PE_COFF_IMAGE, (uintptr_t)image,
|
|
img.length, efi_tcg2_event);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("tcg2->hash_log_extend_event(PE_COFF_IMAGE) failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* EFI_TCG2_PROTOCOL.SubmitCommand test */
|
|
ret = get_manufacturer_id_buffer_small(tcg2);
|
|
if (ret != EFI_OUT_OF_RESOURCES) {
|
|
efi_st_error("get_manufacturer_id buffer too small failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
ret = get_manufacturer_id(tcg2, &manufacturer_id);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("get_manufacturer_id failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
if (capability.manufacturer_id != manufacturer_id) {
|
|
efi_st_error("tcg2->submit_command test failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* tcg2_measure_pe_image test */
|
|
ret = boottime->load_image(false, image_handle, NULL, image,
|
|
img.length, &handle);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to load image\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* measure ready_to_boot event(boot variables, smbios table, etc.) */
|
|
/* TODO: add GPT measurement test */
|
|
ret = boottime->start_image(handle, &exit_data_size, &exit_data);
|
|
if (ret != EFI_UNSUPPORTED) {
|
|
efi_st_error("Wrong return value from application\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
ret = boottime->free_pool(exit_data);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("Failed to free exit data\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* validate PCR read from the TPM device */
|
|
for (i = 0; i < (EFI_TCG2_MAX_PCR_INDEX + 1); i++) {
|
|
ret = read_pcr(tcg2, i);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("read pcr error\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
if (validate_pcrs()) {
|
|
efi_st_error("PCR validation failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/* EFI_TCG2_PROTOCOL.GetEventLog test */
|
|
ret = tcg2->get_eventlog(tcg2, TCG2_EVENT_LOG_FORMAT_TCG_2, &eventlog,
|
|
&eventlog_last_entry, &eventlog_truncated);
|
|
if (ret != EFI_SUCCESS) {
|
|
efi_st_error("tcg2->get_eventlog failed\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
/* TODO: eventlog format check */
|
|
|
|
return EFI_ST_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* efi_st_tcg2_teardown() - Tear down unit test
|
|
*
|
|
* Return: EFI_ST_SUCCESS for success
|
|
*/
|
|
static int efi_st_tcg2_teardown(void)
|
|
{
|
|
efi_status_t r = EFI_ST_SUCCESS;
|
|
|
|
if (image) {
|
|
r = boottime->free_pool(image);
|
|
if (r != EFI_SUCCESS) {
|
|
efi_st_error("Failed to free image\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
if (efi_tcg2_event) {
|
|
r = boottime->free_pool(efi_tcg2_event);
|
|
if (r != EFI_SUCCESS) {
|
|
efi_st_error("Failed to free efi_tcg2_event\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
if (pcrs) {
|
|
r = boottime->free_pool(pcrs);
|
|
if (r != EFI_SUCCESS) {
|
|
efi_st_error("Failed to free pcr\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
|
|
r = restore_boot_variable();
|
|
if (r != EFI_SUCCESS) {
|
|
efi_st_error("Failed to restore boot variables\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
/*
|
|
* Restore SMBIOS table
|
|
* If orig_smbios_table is NULL, calling install_configuration_table()
|
|
* removes dummy SMBIOS table form systab.
|
|
*/
|
|
r = boottime->install_configuration_table(&smbios_guid, orig_smbios_table);
|
|
if (r != EFI_SUCCESS) {
|
|
efi_st_error("Failed to restore SMBOIS table\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
|
|
if (dmi_addr) {
|
|
r = boottime->free_pages(dmi_addr, 1);
|
|
if (r != EFI_SUCCESS) {
|
|
efi_st_error("Failed to free dummy smbios table\n");
|
|
return EFI_ST_FAILURE;
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
EFI_UNIT_TEST(tcg2) = {
|
|
.name = "tcg2",
|
|
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
|
|
.execute = efi_st_tcg2_execute,
|
|
.setup = efi_st_tcg2_setup,
|
|
.teardown = efi_st_tcg2_teardown,
|
|
.on_request = true,
|
|
};
|