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 "Unseal_fp.h"
9
10UINT16 Unseal_Out_Marshal(Unseal_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 += TPM2B_SENSITIVE_DATA_Marshal(&source->outData, 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 Unseal_In_Unmarshal(Unseal_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->itemHandle = request_handles[0];
44  if ((result == TPM_RC_SUCCESS) && *size) {
45    result = TPM_RC_SIZE;
46  }
47  return result;
48}
49
50TPM_RC Exec_Unseal(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  Unseal_In in;
58  Unseal_Out out;
59#ifdef TPM_CC_Unseal
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 = Unseal_In_Unmarshal(&in, request_handles, request_parameter_buffer,
69                               request_parameter_buffer_size);
70  if (result != TPM_RC_SUCCESS) {
71    return result;
72  }
73  // Execute command.
74  result = TPM2_Unseal(&in, &out);
75  if (result != TPM_RC_SUCCESS) {
76    return result;
77  }
78// Marshal output structure to global response buffer.
79#ifdef TPM_CC_Unseal
80  response_buffer = MemoryGetResponseBuffer(TPM_CC_Unseal) + 10;
81  response_buffer_size = MAX_RESPONSE_SIZE - 10;
82  bytes_marshalled =
83      Unseal_Out_Marshal(&out, tag, &response_buffer, &response_buffer_size);
84  *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
85  *response_parameter_buffer_size =
86      bytes_marshalled - *response_handle_buffer_size;
87  return TPM_RC_SUCCESS;
88#endif
89  return TPM_RC_COMMAND_CODE;
90}
91