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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 "PCR_Allocate_fp.h"
      9 
     10 UINT16 PCR_Allocate_Out_Marshal(PCR_Allocate_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 += TPMI_YES_NO_Marshal(&source->allocationSuccess, buffer, size);
     28   total_size += UINT32_Marshal(&source->maxPCR, buffer, size);
     29   total_size += UINT32_Marshal(&source->sizeNeeded, buffer, size);
     30   total_size += UINT32_Marshal(&source->sizeAvailable, 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 PCR_Allocate_In_Unmarshal(PCR_Allocate_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->authHandle = request_handles[0];
     47   // Unmarshal request parameters.
     48   result = TPML_PCR_SELECTION_Unmarshal(&target->pcrAllocation, buffer, size);
     49   if (result != TPM_RC_SUCCESS) {
     50     return result;
     51   }
     52   if ((result == TPM_RC_SUCCESS) && *size) {
     53     result = TPM_RC_SIZE;
     54   }
     55   return result;
     56 }
     57 
     58 TPM_RC Exec_PCR_Allocate(TPMI_ST_COMMAND_TAG tag,
     59                          BYTE** request_parameter_buffer,
     60                          INT32* request_parameter_buffer_size,
     61                          TPM_HANDLE request_handles[],
     62                          UINT32* response_handle_buffer_size,
     63                          UINT32* response_parameter_buffer_size) {
     64   TPM_RC result = TPM_RC_SUCCESS;
     65   PCR_Allocate_In in;
     66   PCR_Allocate_Out out;
     67 #ifdef TPM_CC_PCR_Allocate
     68   BYTE* response_buffer;
     69   INT32 response_buffer_size;
     70   UINT16 bytes_marshalled;
     71   UINT16 num_response_handles = 0;
     72 #endif
     73   *response_handle_buffer_size = 0;
     74   *response_parameter_buffer_size = 0;
     75   // Unmarshal request parameters to input structure.
     76   result =
     77       PCR_Allocate_In_Unmarshal(&in, request_handles, request_parameter_buffer,
     78                                 request_parameter_buffer_size);
     79   if (result != TPM_RC_SUCCESS) {
     80     return result;
     81   }
     82   // Execute command.
     83   result = TPM2_PCR_Allocate(&in, &out);
     84   if (result != TPM_RC_SUCCESS) {
     85     return result;
     86   }
     87 // Marshal output structure to global response buffer.
     88 #ifdef TPM_CC_PCR_Allocate
     89   response_buffer = MemoryGetResponseBuffer(TPM_CC_PCR_Allocate) + 10;
     90   response_buffer_size = MAX_RESPONSE_SIZE - 10;
     91   bytes_marshalled = PCR_Allocate_Out_Marshal(&out, tag, &response_buffer,
     92                                               &response_buffer_size);
     93   *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
     94   *response_parameter_buffer_size =
     95       bytes_marshalled - *response_handle_buffer_size;
     96   return TPM_RC_SUCCESS;
     97 #endif
     98   return TPM_RC_COMMAND_CODE;
     99 }
    100