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 "ECDH_ZGen_fp.h"
9
ECDH_ZGen_Out_Marshal(ECDH_ZGen_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 ECDH_ZGen_Out_Marshal(ECDH_ZGen_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->outPoint, 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(¶meter_size, ¶meter_size_location,
32 ¶meter_size_size);
33 }
34 return total_size;
35 }
36
ECDH_ZGen_In_Unmarshal(ECDH_ZGen_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)37 TPM_RC ECDH_ZGen_In_Unmarshal(ECDH_ZGen_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->keyHandle = request_handles[0];
44 // Unmarshal request parameters.
45 result = TPM2B_ECC_POINT_Unmarshal(&target->inPoint, 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
Exec_ECDH_ZGen(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)55 TPM_RC Exec_ECDH_ZGen(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 ECDH_ZGen_In in;
63 ECDH_ZGen_Out out;
64 #ifdef TPM_CC_ECDH_ZGen
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 ECDH_ZGen_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_ECDH_ZGen(&in, &out);
81 if (result != TPM_RC_SUCCESS) {
82 return result;
83 }
84 // Marshal output structure to global response buffer.
85 #ifdef TPM_CC_ECDH_ZGen
86 response_buffer = MemoryGetResponseBuffer(TPM_CC_ECDH_ZGen) + 10;
87 response_buffer_size = MAX_RESPONSE_SIZE - 10;
88 bytes_marshalled =
89 ECDH_ZGen_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