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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 #include "MemoryLib_fp.h"
      8 #include "Commit_fp.h"
      9 
     10 UINT16 Commit_Out_Marshal(Commit_Out* source,
     11                           TPMI_ST_COMMAND_TAG tag,
     12                           BYTE** buffer,
     13                           INT32* size) {
     14   UINT16 total_size = 0;
     15   UINT32 parameter_size = 0;
     16   BYTE* parameter_size_location;
     17   INT32 parameter_size_size = sizeof(UINT32);
     18   UINT32 num_response_handles = 0;
     19   // Add parameter_size=0 to indicate size of the parameter area. Will be
     20   // replaced later by computed parameter_size.
     21   if (tag == TPM_ST_SESSIONS) {
     22     parameter_size_location = *buffer;
     23     // Don't add to total_size, but increment *buffer and decrement *size.
     24     UINT32_Marshal(&parameter_size, buffer, size);
     25   }
     26   // Marshal response parameters.
     27   total_size += TPM2B_ECC_POINT_Marshal(&source->K, buffer, size);
     28   total_size += TPM2B_ECC_POINT_Marshal(&source->L, buffer, size);
     29   total_size += TPM2B_ECC_POINT_Marshal(&source->E, buffer, size);
     30   total_size += UINT16_Marshal(&source->counter, buffer, size);
     31   // Compute actual parameter_size. Don't add result to total_size.
     32   if (tag == TPM_ST_SESSIONS) {
     33     parameter_size = total_size - num_response_handles * sizeof(TPM_HANDLE);
     34     UINT32_Marshal(&parameter_size, &parameter_size_location,
     35                    &parameter_size_size);
     36   }
     37   return total_size;
     38 }
     39 
     40 TPM_RC Commit_In_Unmarshal(Commit_In* target,
     41                            TPM_HANDLE request_handles[],
     42                            BYTE** buffer,
     43                            INT32* size) {
     44   TPM_RC result = TPM_RC_SUCCESS;
     45   // Get request handles from request_handles array.
     46   target->signHandle = request_handles[0];
     47   // Unmarshal request parameters.
     48   result = TPM2B_ECC_POINT_Unmarshal(&target->P1, buffer, size);
     49   if (result != TPM_RC_SUCCESS) {
     50     return result;
     51   }
     52   result = TPM2B_SENSITIVE_DATA_Unmarshal(&target->s2, buffer, size);
     53   if (result != TPM_RC_SUCCESS) {
     54     return result;
     55   }
     56   result = TPM2B_ECC_PARAMETER_Unmarshal(&target->y2, buffer, size);
     57   if (result != TPM_RC_SUCCESS) {
     58     return result;
     59   }
     60   if ((result == TPM_RC_SUCCESS) && *size) {
     61     result = TPM_RC_SIZE;
     62   }
     63   return result;
     64 }
     65 
     66 TPM_RC Exec_Commit(TPMI_ST_COMMAND_TAG tag,
     67                    BYTE** request_parameter_buffer,
     68                    INT32* request_parameter_buffer_size,
     69                    TPM_HANDLE request_handles[],
     70                    UINT32* response_handle_buffer_size,
     71                    UINT32* response_parameter_buffer_size) {
     72   TPM_RC result = TPM_RC_SUCCESS;
     73   Commit_In in;
     74   Commit_Out out;
     75 #ifdef TPM_CC_Commit
     76   BYTE* response_buffer;
     77   INT32 response_buffer_size;
     78   UINT16 bytes_marshalled;
     79   UINT16 num_response_handles = 0;
     80 #endif
     81   *response_handle_buffer_size = 0;
     82   *response_parameter_buffer_size = 0;
     83   // Unmarshal request parameters to input structure.
     84   result = Commit_In_Unmarshal(&in, request_handles, request_parameter_buffer,
     85                                request_parameter_buffer_size);
     86   if (result != TPM_RC_SUCCESS) {
     87     return result;
     88   }
     89   // Execute command.
     90   result = TPM2_Commit(&in, &out);
     91   if (result != TPM_RC_SUCCESS) {
     92     return result;
     93   }
     94 // Marshal output structure to global response buffer.
     95 #ifdef TPM_CC_Commit
     96   response_buffer = MemoryGetResponseBuffer(TPM_CC_Commit) + 10;
     97   response_buffer_size = MAX_RESPONSE_SIZE - 10;
     98   bytes_marshalled =
     99       Commit_Out_Marshal(&out, tag, &response_buffer, &response_buffer_size);
    100   *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
    101   *response_parameter_buffer_size =
    102       bytes_marshalled - *response_handle_buffer_size;
    103   return TPM_RC_SUCCESS;
    104 #endif
    105   return TPM_RC_COMMAND_CODE;
    106 }
    107