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_KeyGen_fp.h"
9
ECDH_KeyGen_Out_Marshal(ECDH_KeyGen_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 ECDH_KeyGen_Out_Marshal(ECDH_KeyGen_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->zPoint, buffer, size);
28 total_size += TPM2B_ECC_POINT_Marshal(&source->pubPoint, buffer, size);
29 // Compute actual parameter_size. Don't add result to total_size.
30 if (tag == TPM_ST_SESSIONS) {
31 parameter_size = total_size - num_response_handles * sizeof(TPM_HANDLE);
32 UINT32_Marshal(¶meter_size, ¶meter_size_location,
33 ¶meter_size_size);
34 }
35 return total_size;
36 }
37
ECDH_KeyGen_In_Unmarshal(ECDH_KeyGen_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)38 TPM_RC ECDH_KeyGen_In_Unmarshal(ECDH_KeyGen_In* target,
39 TPM_HANDLE request_handles[],
40 BYTE** buffer,
41 INT32* size) {
42 TPM_RC result = TPM_RC_SUCCESS;
43 // Get request handles from request_handles array.
44 target->keyHandle = request_handles[0];
45 if ((result == TPM_RC_SUCCESS) && *size) {
46 result = TPM_RC_SIZE;
47 }
48 return result;
49 }
50
Exec_ECDH_KeyGen(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)51 TPM_RC Exec_ECDH_KeyGen(TPMI_ST_COMMAND_TAG tag,
52 BYTE** request_parameter_buffer,
53 INT32* request_parameter_buffer_size,
54 TPM_HANDLE request_handles[],
55 UINT32* response_handle_buffer_size,
56 UINT32* response_parameter_buffer_size) {
57 TPM_RC result = TPM_RC_SUCCESS;
58 ECDH_KeyGen_In in;
59 ECDH_KeyGen_Out out;
60 #ifdef TPM_CC_ECDH_KeyGen
61 BYTE* response_buffer;
62 INT32 response_buffer_size;
63 UINT16 bytes_marshalled;
64 UINT16 num_response_handles = 0;
65 #endif
66 *response_handle_buffer_size = 0;
67 *response_parameter_buffer_size = 0;
68 // Unmarshal request parameters to input structure.
69 result =
70 ECDH_KeyGen_In_Unmarshal(&in, request_handles, request_parameter_buffer,
71 request_parameter_buffer_size);
72 if (result != TPM_RC_SUCCESS) {
73 return result;
74 }
75 // Execute command.
76 result = TPM2_ECDH_KeyGen(&in, &out);
77 if (result != TPM_RC_SUCCESS) {
78 return result;
79 }
80 // Marshal output structure to global response buffer.
81 #ifdef TPM_CC_ECDH_KeyGen
82 response_buffer = MemoryGetResponseBuffer(TPM_CC_ECDH_KeyGen) + 10;
83 response_buffer_size = MAX_RESPONSE_SIZE - 10;
84 bytes_marshalled = ECDH_KeyGen_Out_Marshal(&out, tag, &response_buffer,
85 &response_buffer_size);
86 *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
87 *response_parameter_buffer_size =
88 bytes_marshalled - *response_handle_buffer_size;
89 return TPM_RC_SUCCESS;
90 #endif
91 return TPM_RC_COMMAND_CODE;
92 }
93