| // Copyright 2015 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // THIS CODE IS GENERATED - DO NOT MODIFY! |
| |
| #include "MemoryLib_fp.h" |
| #include "NV_Read_fp.h" |
| |
| UINT16 NV_Read_Out_Marshal(NV_Read_Out* source, |
| TPMI_ST_COMMAND_TAG tag, |
| BYTE** buffer, |
| INT32* size) { |
| UINT16 total_size = 0; |
| UINT32 parameter_size = 0; |
| BYTE* parameter_size_location; |
| INT32 parameter_size_size = sizeof(UINT32); |
| UINT32 num_response_handles = 0; |
| // Add parameter_size=0 to indicate size of the parameter area. Will be |
| // replaced later by computed parameter_size. |
| if (tag == TPM_ST_SESSIONS) { |
| parameter_size_location = *buffer; |
| // Don't add to total_size, but increment *buffer and decrement *size. |
| UINT32_Marshal(¶meter_size, buffer, size); |
| } |
| // Marshal response parameters. |
| total_size += TPM2B_MAX_NV_BUFFER_Marshal(&source->data, buffer, size); |
| // Compute actual parameter_size. Don't add result to total_size. |
| if (tag == TPM_ST_SESSIONS) { |
| parameter_size = total_size - num_response_handles * sizeof(TPM_HANDLE); |
| UINT32_Marshal(¶meter_size, ¶meter_size_location, |
| ¶meter_size_size); |
| } |
| return total_size; |
| } |
| |
| TPM_RC NV_Read_In_Unmarshal(NV_Read_In* target, |
| TPM_HANDLE request_handles[], |
| BYTE** buffer, |
| INT32* size) { |
| TPM_RC result = TPM_RC_SUCCESS; |
| // Get request handles from request_handles array. |
| target->authHandle = request_handles[0]; |
| target->nvIndex = request_handles[1]; |
| // Unmarshal request parameters. |
| result = UINT16_Unmarshal(&target->size, buffer, size); |
| if (result != TPM_RC_SUCCESS) { |
| return result; |
| } |
| result = UINT16_Unmarshal(&target->offset, buffer, size); |
| if (result != TPM_RC_SUCCESS) { |
| return result; |
| } |
| if ((result == TPM_RC_SUCCESS) && *size) { |
| result = TPM_RC_SIZE; |
| } |
| return result; |
| } |
| |
| TPM_RC Exec_NV_Read(TPMI_ST_COMMAND_TAG tag, |
| BYTE** request_parameter_buffer, |
| INT32* request_parameter_buffer_size, |
| TPM_HANDLE request_handles[], |
| UINT32* response_handle_buffer_size, |
| UINT32* response_parameter_buffer_size) { |
| TPM_RC result = TPM_RC_SUCCESS; |
| NV_Read_In in; |
| NV_Read_Out out; |
| #ifdef TPM_CC_NV_Read |
| BYTE* response_buffer; |
| INT32 response_buffer_size; |
| UINT16 bytes_marshalled; |
| UINT16 num_response_handles = 0; |
| #endif |
| *response_handle_buffer_size = 0; |
| *response_parameter_buffer_size = 0; |
| // Unmarshal request parameters to input structure. |
| result = NV_Read_In_Unmarshal(&in, request_handles, request_parameter_buffer, |
| request_parameter_buffer_size); |
| if (result != TPM_RC_SUCCESS) { |
| return result; |
| } |
| // Execute command. |
| result = TPM2_NV_Read(&in, &out); |
| if (result != TPM_RC_SUCCESS) { |
| return result; |
| } |
| // Marshal output structure to global response buffer. |
| #ifdef TPM_CC_NV_Read |
| response_buffer = MemoryGetResponseBuffer(TPM_CC_NV_Read) + 10; |
| response_buffer_size = MAX_RESPONSE_SIZE - 10; |
| bytes_marshalled = |
| NV_Read_Out_Marshal(&out, tag, &response_buffer, &response_buffer_size); |
| *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE); |
| *response_parameter_buffer_size = |
| bytes_marshalled - *response_handle_buffer_size; |
| return TPM_RC_SUCCESS; |
| #endif |
| return TPM_RC_COMMAND_CODE; |
| } |