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 "EncryptDecrypt_fp.h"
9 
EncryptDecrypt_Out_Marshal(EncryptDecrypt_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 EncryptDecrypt_Out_Marshal(EncryptDecrypt_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(&parameter_size, buffer, size);
25   }
26   // Marshal response parameters.
27   total_size += TPM2B_MAX_BUFFER_Marshal(&source->outData, buffer, size);
28   total_size += TPM2B_IV_Marshal(&source->ivOut, 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(&parameter_size, &parameter_size_location,
33                    &parameter_size_size);
34   }
35   return total_size;
36 }
37 
EncryptDecrypt_In_Unmarshal(EncryptDecrypt_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)38 TPM_RC EncryptDecrypt_In_Unmarshal(EncryptDecrypt_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   // Unmarshal request parameters.
46   result = TPMI_YES_NO_Unmarshal(&target->decrypt, buffer, size);
47   if (result != TPM_RC_SUCCESS) {
48     return result;
49   }
50   result = TPMI_ALG_SYM_MODE_Unmarshal(&target->mode, buffer, size, TRUE);
51   if (result != TPM_RC_SUCCESS) {
52     return result;
53   }
54   result = TPM2B_IV_Unmarshal(&target->ivIn, buffer, size);
55   if (result != TPM_RC_SUCCESS) {
56     return result;
57   }
58   result = TPM2B_MAX_BUFFER_Unmarshal(&target->inData, buffer, size);
59   if (result != TPM_RC_SUCCESS) {
60     return result;
61   }
62   if ((result == TPM_RC_SUCCESS) && *size) {
63     result = TPM_RC_SIZE;
64   }
65   return result;
66 }
67 
Exec_EncryptDecrypt(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)68 TPM_RC Exec_EncryptDecrypt(TPMI_ST_COMMAND_TAG tag,
69                            BYTE** request_parameter_buffer,
70                            INT32* request_parameter_buffer_size,
71                            TPM_HANDLE request_handles[],
72                            UINT32* response_handle_buffer_size,
73                            UINT32* response_parameter_buffer_size) {
74   TPM_RC result = TPM_RC_SUCCESS;
75   EncryptDecrypt_In in;
76   EncryptDecrypt_Out out;
77 #ifdef TPM_CC_EncryptDecrypt
78   BYTE* response_buffer;
79   INT32 response_buffer_size;
80   UINT16 bytes_marshalled;
81   UINT16 num_response_handles = 0;
82 #endif
83   *response_handle_buffer_size = 0;
84   *response_parameter_buffer_size = 0;
85   // Unmarshal request parameters to input structure.
86   result = EncryptDecrypt_In_Unmarshal(&in, request_handles,
87                                        request_parameter_buffer,
88                                        request_parameter_buffer_size);
89   if (result != TPM_RC_SUCCESS) {
90     return result;
91   }
92   // Execute command.
93   result = TPM2_EncryptDecrypt(&in, &out);
94   if (result != TPM_RC_SUCCESS) {
95     return result;
96   }
97 // Marshal output structure to global response buffer.
98 #ifdef TPM_CC_EncryptDecrypt
99   response_buffer = MemoryGetResponseBuffer(TPM_CC_EncryptDecrypt) + 10;
100   response_buffer_size = MAX_RESPONSE_SIZE - 10;
101   bytes_marshalled = EncryptDecrypt_Out_Marshal(&out, tag, &response_buffer,
102                                                 &response_buffer_size);
103   *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
104   *response_parameter_buffer_size =
105       bytes_marshalled - *response_handle_buffer_size;
106   return TPM_RC_SUCCESS;
107 #endif
108   return TPM_RC_COMMAND_CODE;
109 }
110