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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 "ContextLoad_fp.h"
      9 
     10 UINT16 ContextLoad_Out_Marshal(ContextLoad_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 = 1;
     19   // Marshal response handles.
     20   total_size += TPMI_DH_CONTEXT_Marshal(&source->loadedHandle, buffer, size);
     21   // Add parameter_size=0 to indicate size of the parameter area. Will be
     22   // replaced later by computed parameter_size.
     23   if (tag == TPM_ST_SESSIONS) {
     24     parameter_size_location = *buffer;
     25     // Don't add to total_size, but increment *buffer and decrement *size.
     26     UINT32_Marshal(&parameter_size, buffer, size);
     27   }
     28   // Compute actual parameter_size. Don't add result to total_size.
     29   if (tag == TPM_ST_SESSIONS) {
     30     parameter_size = total_size - num_response_handles * sizeof(TPM_HANDLE);
     31     UINT32_Marshal(&parameter_size, &parameter_size_location,
     32                    &parameter_size_size);
     33   }
     34   return total_size;
     35 }
     36 
     37 TPM_RC ContextLoad_In_Unmarshal(ContextLoad_In* target,
     38                                 TPM_HANDLE request_handles[],
     39                                 BYTE** buffer,
     40                                 INT32* size) {
     41   TPM_RC result = TPM_RC_SUCCESS;
     42   // Unmarshal request parameters.
     43   result = TPMS_CONTEXT_Unmarshal(&target->context, buffer, size);
     44   if (result != TPM_RC_SUCCESS) {
     45     return result;
     46   }
     47   if ((result == TPM_RC_SUCCESS) && *size) {
     48     result = TPM_RC_SIZE;
     49   }
     50   return result;
     51 }
     52 
     53 TPM_RC Exec_ContextLoad(TPMI_ST_COMMAND_TAG tag,
     54                         BYTE** request_parameter_buffer,
     55                         INT32* request_parameter_buffer_size,
     56                         TPM_HANDLE request_handles[],
     57                         UINT32* response_handle_buffer_size,
     58                         UINT32* response_parameter_buffer_size) {
     59   TPM_RC result = TPM_RC_SUCCESS;
     60   ContextLoad_In in;
     61   ContextLoad_Out out;
     62 #ifdef TPM_CC_ContextLoad
     63   BYTE* response_buffer;
     64   INT32 response_buffer_size;
     65   UINT16 bytes_marshalled;
     66   UINT16 num_response_handles = 1;
     67 #endif
     68   *response_handle_buffer_size = 0;
     69   *response_parameter_buffer_size = 0;
     70   // Unmarshal request parameters to input structure.
     71   result =
     72       ContextLoad_In_Unmarshal(&in, request_handles, request_parameter_buffer,
     73                                request_parameter_buffer_size);
     74   if (result != TPM_RC_SUCCESS) {
     75     return result;
     76   }
     77   // Execute command.
     78   result = TPM2_ContextLoad(&in, &out);
     79   if (result != TPM_RC_SUCCESS) {
     80     return result;
     81   }
     82 // Marshal output structure to global response buffer.
     83 #ifdef TPM_CC_ContextLoad
     84   response_buffer = MemoryGetResponseBuffer(TPM_CC_ContextLoad) + 10;
     85   response_buffer_size = MAX_RESPONSE_SIZE - 10;
     86   bytes_marshalled = ContextLoad_Out_Marshal(&out, tag, &response_buffer,
     87                                              &response_buffer_size);
     88   *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
     89   *response_parameter_buffer_size =
     90       bytes_marshalled - *response_handle_buffer_size;
     91   return TPM_RC_SUCCESS;
     92 #endif
     93   return TPM_RC_COMMAND_CODE;
     94 }
     95