include/tpm-v2.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2018 Bootlin
   4  * Author: Miquel Raynal <miquel.raynal@bootlin.com>
   5  */
   6
   7 #ifndef __TPM_V2_H
   8 #define __TPM_V2_H
   9
  10 #include <tpm-common.h>
  11
  12 #define TPM2_DIGEST_LEN         32
  13
  14 /**
  15  * TPM2 Structure Tags for command/response buffers.
  16  *
  17  * @TPM2_ST_NO_SESSIONS: the command does not need an authentication.
  18  * @TPM2_ST_SESSIONS: the command needs an authentication.
  19  */
  20 enum tpm2_structures {
  21         TPM2_ST_NO_SESSIONS     = 0x8001,
  22         TPM2_ST_SESSIONS        = 0x8002,
  23 };
  24
  25 /**
  26  * TPM2 type of boolean.
  27  */
  28 enum tpm2_yes_no {
  29         TPMI_YES                = 1,
  30         TPMI_NO                 = 0,
  31 };
  32
  33 /**
  34  * TPM2 startup values.
  35  *
  36  * @TPM2_SU_CLEAR: reset the internal state.
  37  * @TPM2_SU_STATE: restore saved state (if any).
  38  */
  39 enum tpm2_startup_types {
  40         TPM2_SU_CLEAR           = 0x0000,
  41         TPM2_SU_STATE           = 0x0001,
  42 };
  43
  44 /**
  45  * TPM2 permanent handles.
  46  *
  47  * @TPM2_RH_OWNER: refers to the 'owner' hierarchy.
  48  * @TPM2_RS_PW: indicates a password.
  49  * @TPM2_RH_LOCKOUT: refers to the 'lockout' hierarchy.
  50  * @TPM2_RH_ENDORSEMENT: refers to the 'endorsement' hierarchy.
  51  * @TPM2_RH_PLATFORM: refers to the 'platform' hierarchy.
  52  */
  53 enum tpm2_handles {
  54         TPM2_RH_OWNER           = 0x40000001,
  55         TPM2_RS_PW              = 0x40000009,
  56         TPM2_RH_LOCKOUT         = 0x4000000A,
  57         TPM2_RH_ENDORSEMENT     = 0x4000000B,
  58         TPM2_RH_PLATFORM        = 0x4000000C,
  59 };
  60
  61 /**
  62  * TPM2 command codes used at the beginning of a buffer, gives the command.
  63  *
  64  * @TPM2_CC_STARTUP: TPM2_Startup().
  65  * @TPM2_CC_SELF_TEST: TPM2_SelfTest().
  66  * @TPM2_CC_CLEAR: TPM2_Clear().
  67  * @TPM2_CC_CLEARCONTROL: TPM2_ClearControl().
  68  * @TPM2_CC_HIERCHANGEAUTH: TPM2_HierarchyChangeAuth().
  69  * @TPM2_CC_PCR_SETAUTHPOL: TPM2_PCR_SetAuthPolicy().
  70  * @TPM2_CC_DAM_RESET: TPM2_DictionaryAttackLockReset().
  71  * @TPM2_CC_DAM_PARAMETERS: TPM2_DictionaryAttackParameters().
  72  * @TPM2_CC_GET_CAPABILITY: TPM2_GetCapibility().
  73  * @TPM2_CC_PCR_READ: TPM2_PCR_Read().
  74  * @TPM2_CC_PCR_EXTEND: TPM2_PCR_Extend().
  75  * @TPM2_CC_PCR_SETAUTHVAL: TPM2_PCR_SetAuthValue().
  76  */
  77 enum tpm2_command_codes {
  78         TPM2_CC_STARTUP         = 0x0144,
  79         TPM2_CC_SELF_TEST       = 0x0143,
  80         TPM2_CC_CLEAR           = 0x0126,
  81         TPM2_CC_CLEARCONTROL    = 0x0127,
  82         TPM2_CC_HIERCHANGEAUTH  = 0x0129,
  83         TPM2_CC_DAM_RESET       = 0x0139,
  84         TPM2_CC_DAM_PARAMETERS  = 0x013A,
  85         TPM2_CC_GET_CAPABILITY  = 0x017A,
  86         TPM2_CC_PCR_READ        = 0x017E,
  87         TPM2_CC_PCR_EXTEND      = 0x0182,
  88 };
  89
  90 /**
  91  * TPM2 return codes.
  92  */
  93 enum tpm2_return_codes {
  94         TPM2_RC_SUCCESS         = 0x0000,
  95         TPM2_RC_BAD_TAG         = 0x001E,
  96         TPM2_RC_FMT1            = 0x0080,
  97         TPM2_RC_HASH            = TPM2_RC_FMT1 + 0x0003,
  98         TPM2_RC_VALUE           = TPM2_RC_FMT1 + 0x0004,
  99         TPM2_RC_SIZE            = TPM2_RC_FMT1 + 0x0015,
 100         TPM2_RC_BAD_AUTH        = TPM2_RC_FMT1 + 0x0022,
 101         TPM2_RC_HANDLE          = TPM2_RC_FMT1 + 0x000B,
 102         TPM2_RC_VER1            = 0x0100,
 103         TPM2_RC_INITIALIZE      = TPM2_RC_VER1 + 0x0000,
 104         TPM2_RC_FAILURE         = TPM2_RC_VER1 + 0x0001,
 105         TPM2_RC_DISABLED        = TPM2_RC_VER1 + 0x0020,
 106         TPM2_RC_AUTH_MISSING    = TPM2_RC_VER1 + 0x0025,
 107         TPM2_RC_COMMAND_CODE    = TPM2_RC_VER1 + 0x0043,
 108         TPM2_RC_AUTHSIZE        = TPM2_RC_VER1 + 0x0044,
 109         TPM2_RC_AUTH_CONTEXT    = TPM2_RC_VER1 + 0x0045,
 110         TPM2_RC_NEEDS_TEST      = TPM2_RC_VER1 + 0x0053,
 111         TPM2_RC_WARN            = 0x0900,
 112         TPM2_RC_TESTING         = TPM2_RC_WARN + 0x000A,
 113         TPM2_RC_REFERENCE_H0    = TPM2_RC_WARN + 0x0010,
 114         TPM2_RC_LOCKOUT         = TPM2_RC_WARN + 0x0021,
 115 };
 116
 117 /**
 118  * TPM2 algorithms.
 119  */
 120 enum tpm2_algorithms {
 121         TPM2_ALG_XOR            = 0x0A,
 122         TPM2_ALG_SHA256         = 0x0B,
 123         TPM2_ALG_SHA384         = 0x0C,
 124         TPM2_ALG_SHA512         = 0x0D,
 125         TPM2_ALG_NULL           = 0x10,
 126 };
 127
 128 /**
 129  * Issue a TPM2_Startup command.
 130  *
 131  * @mode        TPM startup mode
 132  *
 133  * @return code of the operation
 134  */
 135 u32 tpm2_startup(enum tpm2_startup_types mode);
 136
 137 #endif /* __TPM_V2_H */