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 "EC_Ephemeral_fp.h"
9
EC_Ephemeral_Out_Marshal(EC_Ephemeral_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 EC_Ephemeral_Out_Marshal(EC_Ephemeral_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->Q, buffer, size);
28 total_size += UINT16_Marshal(&source->counter, 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
EC_Ephemeral_In_Unmarshal(EC_Ephemeral_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)38 TPM_RC EC_Ephemeral_In_Unmarshal(EC_Ephemeral_In* target,
39 TPM_HANDLE request_handles[],
40 BYTE** buffer,
41 INT32* size) {
42 TPM_RC result = TPM_RC_SUCCESS;
43 // Unmarshal request parameters.
44 result = TPMI_ECC_CURVE_Unmarshal(&target->curveID, buffer, size);
45 if (result != TPM_RC_SUCCESS) {
46 return result;
47 }
48 if ((result == TPM_RC_SUCCESS) && *size) {
49 result = TPM_RC_SIZE;
50 }
51 return result;
52 }
53
Exec_EC_Ephemeral(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)54 TPM_RC Exec_EC_Ephemeral(TPMI_ST_COMMAND_TAG tag,
55 BYTE** request_parameter_buffer,
56 INT32* request_parameter_buffer_size,
57 TPM_HANDLE request_handles[],
58 UINT32* response_handle_buffer_size,
59 UINT32* response_parameter_buffer_size) {
60 TPM_RC result = TPM_RC_SUCCESS;
61 EC_Ephemeral_In in;
62 EC_Ephemeral_Out out;
63 #ifdef TPM_CC_EC_Ephemeral
64 BYTE* response_buffer;
65 INT32 response_buffer_size;
66 UINT16 bytes_marshalled;
67 UINT16 num_response_handles = 0;
68 #endif
69 *response_handle_buffer_size = 0;
70 *response_parameter_buffer_size = 0;
71 // Unmarshal request parameters to input structure.
72 result =
73 EC_Ephemeral_In_Unmarshal(&in, request_handles, request_parameter_buffer,
74 request_parameter_buffer_size);
75 if (result != TPM_RC_SUCCESS) {
76 return result;
77 }
78 // Execute command.
79 result = TPM2_EC_Ephemeral(&in, &out);
80 if (result != TPM_RC_SUCCESS) {
81 return result;
82 }
83 // Marshal output structure to global response buffer.
84 #ifdef TPM_CC_EC_Ephemeral
85 response_buffer = MemoryGetResponseBuffer(TPM_CC_EC_Ephemeral) + 10;
86 response_buffer_size = MAX_RESPONSE_SIZE - 10;
87 bytes_marshalled = EC_Ephemeral_Out_Marshal(&out, tag, &response_buffer,
88 &response_buffer_size);
89 *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
90 *response_parameter_buffer_size =
91 bytes_marshalled - *response_handle_buffer_size;
92 return TPM_RC_SUCCESS;
93 #endif
94 return TPM_RC_COMMAND_CODE;
95 }
96