include/linux/tpm_eventlog.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 #ifndef __LINUX_TPM_EVENTLOG_H__
   4 #define __LINUX_TPM_EVENTLOG_H__
   5
   6 #include <linux/tpm.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 tcg_pcr_event2_head {
 109         u32 pcr_idx;
 110         u32 event_type;
 111         u32 count;
 112         struct tpm_digest digests[];
 113 } __packed;
 114
 115 #endif