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 "ContextSave_fp.h"
9
10UINT16 ContextSave_Out_Marshal(ContextSave_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 += TPMS_CONTEXT_Marshal(&source->context, buffer, size);
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
37TPM_RC ContextSave_In_Unmarshal(ContextSave_In* target,
38                                TPM_HANDLE request_handles[],
39                                BYTE** buffer,
40                                INT32* size) {
41  TPM_RC result = TPM_RC_SUCCESS;
42  // Get request handles from request_handles array.
43  target->saveHandle = request_handles[0];
44  if ((result == TPM_RC_SUCCESS) && *size) {
45    result = TPM_RC_SIZE;
46  }
47  return result;
48}
49
50TPM_RC Exec_ContextSave(TPMI_ST_COMMAND_TAG tag,
51                        BYTE** request_parameter_buffer,
52                        INT32* request_parameter_buffer_size,
53                        TPM_HANDLE request_handles[],
54                        UINT32* response_handle_buffer_size,
55                        UINT32* response_parameter_buffer_size) {
56  TPM_RC result = TPM_RC_SUCCESS;
57  ContextSave_In in;
58  ContextSave_Out out;
59#ifdef TPM_CC_ContextSave
60  BYTE* response_buffer;
61  INT32 response_buffer_size;
62  UINT16 bytes_marshalled;
63  UINT16 num_response_handles = 0;
64#endif
65  *response_handle_buffer_size = 0;
66  *response_parameter_buffer_size = 0;
67  // Unmarshal request parameters to input structure.
68  result =
69      ContextSave_In_Unmarshal(&in, request_handles, request_parameter_buffer,
70                               request_parameter_buffer_size);
71  if (result != TPM_RC_SUCCESS) {
72    return result;
73  }
74  // Execute command.
75  result = TPM2_ContextSave(&in, &out);
76  if (result != TPM_RC_SUCCESS) {
77    return result;
78  }
79// Marshal output structure to global response buffer.
80#ifdef TPM_CC_ContextSave
81  response_buffer = MemoryGetResponseBuffer(TPM_CC_ContextSave) + 10;
82  response_buffer_size = MAX_RESPONSE_SIZE - 10;
83  bytes_marshalled = ContextSave_Out_Marshal(&out, tag, &response_buffer,
84                                             &response_buffer_size);
85  *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
86  *response_parameter_buffer_size =
87      bytes_marshalled - *response_handle_buffer_size;
88  return TPM_RC_SUCCESS;
89#endif
90  return TPM_RC_COMMAND_CODE;
91}
92