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_Read_fp.h"
9
PCR_Read_Out_Marshal(PCR_Read_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 PCR_Read_Out_Marshal(PCR_Read_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 += UINT32_Marshal(&source->pcrUpdateCounter, buffer, size);
28 total_size +=
29 TPML_PCR_SELECTION_Marshal(&source->pcrSelectionOut, buffer, size);
30 total_size += TPML_DIGEST_Marshal(&source->pcrValues, buffer, size);
31 // Compute actual parameter_size. Don't add result to total_size.
32 if (tag == TPM_ST_SESSIONS) {
33 parameter_size = total_size - num_response_handles * sizeof(TPM_HANDLE);
34 UINT32_Marshal(¶meter_size, ¶meter_size_location,
35 ¶meter_size_size);
36 }
37 return total_size;
38 }
39
PCR_Read_In_Unmarshal(PCR_Read_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)40 TPM_RC PCR_Read_In_Unmarshal(PCR_Read_In* target,
41 TPM_HANDLE request_handles[],
42 BYTE** buffer,
43 INT32* size) {
44 TPM_RC result = TPM_RC_SUCCESS;
45 // Unmarshal request parameters.
46 result = TPML_PCR_SELECTION_Unmarshal(&target->pcrSelectionIn, buffer, size);
47 if (result != TPM_RC_SUCCESS) {
48 return result;
49 }
50 if ((result == TPM_RC_SUCCESS) && *size) {
51 result = TPM_RC_SIZE;
52 }
53 return result;
54 }
55
Exec_PCR_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)56 TPM_RC Exec_PCR_Read(TPMI_ST_COMMAND_TAG tag,
57 BYTE** request_parameter_buffer,
58 INT32* request_parameter_buffer_size,
59 TPM_HANDLE request_handles[],
60 UINT32* response_handle_buffer_size,
61 UINT32* response_parameter_buffer_size) {
62 TPM_RC result = TPM_RC_SUCCESS;
63 PCR_Read_In in;
64 PCR_Read_Out out;
65 #ifdef TPM_CC_PCR_Read
66 BYTE* response_buffer;
67 INT32 response_buffer_size;
68 UINT16 bytes_marshalled;
69 UINT16 num_response_handles = 0;
70 #endif
71 *response_handle_buffer_size = 0;
72 *response_parameter_buffer_size = 0;
73 // Unmarshal request parameters to input structure.
74 result = PCR_Read_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_Read(&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_Read
86 response_buffer = MemoryGetResponseBuffer(TPM_CC_PCR_Read) + 10;
87 response_buffer_size = MAX_RESPONSE_SIZE - 10;
88 bytes_marshalled =
89 PCR_Read_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