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 "Sign_fp.h"
9
Sign_Out_Marshal(Sign_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 Sign_Out_Marshal(Sign_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 += TPMT_SIGNATURE_Marshal(&source->signature, 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
Sign_In_Unmarshal(Sign_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)37 TPM_RC Sign_In_Unmarshal(Sign_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_DIGEST_Unmarshal(&target->digest, buffer, size);
46 if (result != TPM_RC_SUCCESS) {
47 return result;
48 }
49 result = TPMT_SIG_SCHEME_Unmarshal(&target->inScheme, buffer, size);
50 if (result != TPM_RC_SUCCESS) {
51 return result;
52 }
53 result = TPMT_TK_HASHCHECK_Unmarshal(&target->validation, buffer, size);
54 if (result != TPM_RC_SUCCESS) {
55 return result;
56 }
57 if ((result == TPM_RC_SUCCESS) && *size) {
58 result = TPM_RC_SIZE;
59 }
60 return result;
61 }
62
Exec_Sign(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)63 TPM_RC Exec_Sign(TPMI_ST_COMMAND_TAG tag,
64 BYTE** request_parameter_buffer,
65 INT32* request_parameter_buffer_size,
66 TPM_HANDLE request_handles[],
67 UINT32* response_handle_buffer_size,
68 UINT32* response_parameter_buffer_size) {
69 TPM_RC result = TPM_RC_SUCCESS;
70 Sign_In in;
71 Sign_Out out;
72 #ifdef TPM_CC_Sign
73 BYTE* response_buffer;
74 INT32 response_buffer_size;
75 UINT16 bytes_marshalled;
76 UINT16 num_response_handles = 0;
77 #endif
78 *response_handle_buffer_size = 0;
79 *response_parameter_buffer_size = 0;
80 // Unmarshal request parameters to input structure.
81 result = Sign_In_Unmarshal(&in, request_handles, request_parameter_buffer,
82 request_parameter_buffer_size);
83 if (result != TPM_RC_SUCCESS) {
84 return result;
85 }
86 // Execute command.
87 result = TPM2_Sign(&in, &out);
88 if (result != TPM_RC_SUCCESS) {
89 return result;
90 }
91 // Marshal output structure to global response buffer.
92 #ifdef TPM_CC_Sign
93 response_buffer = MemoryGetResponseBuffer(TPM_CC_Sign) + 10;
94 response_buffer_size = MAX_RESPONSE_SIZE - 10;
95 bytes_marshalled =
96 Sign_Out_Marshal(&out, tag, &response_buffer, &response_buffer_size);
97 *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
98 *response_parameter_buffer_size =
99 bytes_marshalled - *response_handle_buffer_size;
100 return TPM_RC_SUCCESS;
101 #endif
102 return TPM_RC_COMMAND_CODE;
103 }
104