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      1 // Copyright 2015 The Chromium OS Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // THIS CODE IS GENERATED - DO NOT MODIFY!
      6 
      7 #ifndef TPM2_HMAC_FP_H_
      8 #define TPM2_HMAC_FP_H_
      9 
     10 #include "tpm_generated.h"
     11 
     12 typedef struct {
     13   TPMI_DH_OBJECT handle;
     14   TPM2B_MAX_BUFFER buffer;
     15   TPMI_ALG_HASH hashAlg;
     16 } HMAC_In;
     17 
     18 typedef struct { TPM2B_DIGEST outHMAC; } HMAC_Out;
     19 
     20 // Executes HMAC with request handles and parameters from
     21 // |in| and computes response handles and parameters to |out|.
     22 TPM_RC TPM2_HMAC(HMAC_In* in, HMAC_Out* out);
     23 
     24 // Initializes handle fields in |target| from |request_handles|. Unmarshals
     25 // parameter fields in |target| from |buffer|.
     26 TPM_RC HMAC_In_Unmarshal(HMAC_In* target,
     27                          TPM_HANDLE request_handles[],
     28                          BYTE** buffer,
     29                          INT32* size);
     30 
     31 // Marshals response handles and parameters from |source| to |buffer|. Computes
     32 // and marshals the size of the parameter area (parameter_size) if |tag| ==
     33 // TPM_ST_SESSIONS. Returns size of (parameter area + handle area) in bytes.
     34 // Return value does not include parameter_size field.
     35 UINT16 HMAC_Out_Marshal(HMAC_Out* source,
     36                         TPMI_ST_COMMAND_TAG tag,
     37                         BYTE** buffer,
     38                         INT32* size);
     39 
     40 // Unmarshals any request parameters starting at |request_parameter_buffer|.
     41 // Executes command. Marshals any response handles and parameters to the
     42 // global response buffer and computes |*response_handle_buffer_size| and
     43 // |*response_parameter_buffer_size|. If |tag| == TPM_ST_SESSIONS, marshals
     44 // parameter_size indicating the size of the parameter area. parameter_size
     45 // field is located between the handle area and parameter area.
     46 TPM_RC Exec_HMAC(TPMI_ST_COMMAND_TAG tag,
     47                  BYTE** request_parameter_buffer,
     48                  INT32* request_parameter_buffer_size,
     49                  TPM_HANDLE request_handles[],
     50                  UINT32* response_handle_buffer_size,
     51                  UINT32* response_parameter_buffer_size);
     52 
     53 #endif  // TPM2_HMAC_FP_H
     54