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 "PCR_Event_fp.h"
9
10UINT16 PCR_Event_Out_Marshal(PCR_Event_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 += TPML_DIGEST_VALUES_Marshal(&source->digests, 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 PCR_Event_In_Unmarshal(PCR_Event_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->pcrHandle = request_handles[0];
44  // Unmarshal request parameters.
45  result = TPM2B_EVENT_Unmarshal(&target->eventData, buffer, size);
46  if (result != TPM_RC_SUCCESS) {
47    return result;
48  }
49  if ((result == TPM_RC_SUCCESS) && *size) {
50    result = TPM_RC_SIZE;
51  }
52  return result;
53}
54
55TPM_RC Exec_PCR_Event(TPMI_ST_COMMAND_TAG tag,
56                      BYTE** request_parameter_buffer,
57                      INT32* request_parameter_buffer_size,
58                      TPM_HANDLE request_handles[],
59                      UINT32* response_handle_buffer_size,
60                      UINT32* response_parameter_buffer_size) {
61  TPM_RC result = TPM_RC_SUCCESS;
62  PCR_Event_In in;
63  PCR_Event_Out out;
64#ifdef TPM_CC_PCR_Event
65  BYTE* response_buffer;
66  INT32 response_buffer_size;
67  UINT16 bytes_marshalled;
68  UINT16 num_response_handles = 0;
69#endif
70  *response_handle_buffer_size = 0;
71  *response_parameter_buffer_size = 0;
72  // Unmarshal request parameters to input structure.
73  result =
74      PCR_Event_In_Unmarshal(&in, request_handles, request_parameter_buffer,
75                             request_parameter_buffer_size);
76  if (result != TPM_RC_SUCCESS) {
77    return result;
78  }
79  // Execute command.
80  result = TPM2_PCR_Event(&in, &out);
81  if (result != TPM_RC_SUCCESS) {
82    return result;
83  }
84// Marshal output structure to global response buffer.
85#ifdef TPM_CC_PCR_Event
86  response_buffer = MemoryGetResponseBuffer(TPM_CC_PCR_Event) + 10;
87  response_buffer_size = MAX_RESPONSE_SIZE - 10;
88  bytes_marshalled =
89      PCR_Event_Out_Marshal(&out, tag, &response_buffer, &response_buffer_size);
90  *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
91  *response_parameter_buffer_size =
92      bytes_marshalled - *response_handle_buffer_size;
93  return TPM_RC_SUCCESS;
94#endif
95  return TPM_RC_COMMAND_CODE;
96}
97