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 "EC_Ephemeral_fp.h" 9 10 UINT16 EC_Ephemeral_Out_Marshal(EC_Ephemeral_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(¶meter_size, buffer, size); 25 } 26 // Marshal response parameters. 27 total_size += TPM2B_ECC_POINT_Marshal(&source->Q, buffer, size); 28 total_size += UINT16_Marshal(&source->counter, buffer, size); 29 // Compute actual parameter_size. Don't add result to total_size. 30 if (tag == TPM_ST_SESSIONS) { 31 parameter_size = total_size - num_response_handles * sizeof(TPM_HANDLE); 32 UINT32_Marshal(¶meter_size, ¶meter_size_location, 33 ¶meter_size_size); 34 } 35 return total_size; 36 } 37 38 TPM_RC EC_Ephemeral_In_Unmarshal(EC_Ephemeral_In* target, 39 TPM_HANDLE request_handles[], 40 BYTE** buffer, 41 INT32* size) { 42 TPM_RC result = TPM_RC_SUCCESS; 43 // Unmarshal request parameters. 44 result = TPMI_ECC_CURVE_Unmarshal(&target->curveID, buffer, size); 45 if (result != TPM_RC_SUCCESS) { 46 return result; 47 } 48 if ((result == TPM_RC_SUCCESS) && *size) { 49 result = TPM_RC_SIZE; 50 } 51 return result; 52 } 53 54 TPM_RC Exec_EC_Ephemeral(TPMI_ST_COMMAND_TAG tag, 55 BYTE** request_parameter_buffer, 56 INT32* request_parameter_buffer_size, 57 TPM_HANDLE request_handles[], 58 UINT32* response_handle_buffer_size, 59 UINT32* response_parameter_buffer_size) { 60 TPM_RC result = TPM_RC_SUCCESS; 61 EC_Ephemeral_In in; 62 EC_Ephemeral_Out out; 63 #ifdef TPM_CC_EC_Ephemeral 64 BYTE* response_buffer; 65 INT32 response_buffer_size; 66 UINT16 bytes_marshalled; 67 UINT16 num_response_handles = 0; 68 #endif 69 *response_handle_buffer_size = 0; 70 *response_parameter_buffer_size = 0; 71 // Unmarshal request parameters to input structure. 72 result = 73 EC_Ephemeral_In_Unmarshal(&in, request_handles, request_parameter_buffer, 74 request_parameter_buffer_size); 75 if (result != TPM_RC_SUCCESS) { 76 return result; 77 } 78 // Execute command. 79 result = TPM2_EC_Ephemeral(&in, &out); 80 if (result != TPM_RC_SUCCESS) { 81 return result; 82 } 83 // Marshal output structure to global response buffer. 84 #ifdef TPM_CC_EC_Ephemeral 85 response_buffer = MemoryGetResponseBuffer(TPM_CC_EC_Ephemeral) + 10; 86 response_buffer_size = MAX_RESPONSE_SIZE - 10; 87 bytes_marshalled = EC_Ephemeral_Out_Marshal(&out, tag, &response_buffer, 88 &response_buffer_size); 89 *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE); 90 *response_parameter_buffer_size = 91 bytes_marshalled - *response_handle_buffer_size; 92 return TPM_RC_SUCCESS; 93 #endif 94 return TPM_RC_COMMAND_CODE; 95 } 96
