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 "Unseal_fp.h"
9 
Unseal_Out_Marshal(Unseal_Out * source,TPMI_ST_COMMAND_TAG tag,BYTE ** buffer,INT32 * size)10 UINT16 Unseal_Out_Marshal(Unseal_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_SENSITIVE_DATA_Marshal(&source->outData, 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(&parameter_size, &parameter_size_location,
32                    &parameter_size_size);
33   }
34   return total_size;
35 }
36 
Unseal_In_Unmarshal(Unseal_In * target,TPM_HANDLE request_handles[],BYTE ** buffer,INT32 * size)37 TPM_RC Unseal_In_Unmarshal(Unseal_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->itemHandle = request_handles[0];
44   if ((result == TPM_RC_SUCCESS) && *size) {
45     result = TPM_RC_SIZE;
46   }
47   return result;
48 }
49 
Exec_Unseal(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)50 TPM_RC Exec_Unseal(TPMI_ST_COMMAND_TAG tag,
51                    BYTE** request_parameter_buffer,
52                    INT32* request_parameter_buffer_size,
53                    TPM_HANDLE request_handles[],
54                    UINT32* response_handle_buffer_size,
55                    UINT32* response_parameter_buffer_size) {
56   TPM_RC result = TPM_RC_SUCCESS;
57   Unseal_In in;
58   Unseal_Out out;
59 #ifdef TPM_CC_Unseal
60   BYTE* response_buffer;
61   INT32 response_buffer_size;
62   UINT16 bytes_marshalled;
63   UINT16 num_response_handles = 0;
64 #endif
65   *response_handle_buffer_size = 0;
66   *response_parameter_buffer_size = 0;
67   // Unmarshal request parameters to input structure.
68   result = Unseal_In_Unmarshal(&in, request_handles, request_parameter_buffer,
69                                request_parameter_buffer_size);
70   if (result != TPM_RC_SUCCESS) {
71     return result;
72   }
73   // Execute command.
74   result = TPM2_Unseal(&in, &out);
75   if (result != TPM_RC_SUCCESS) {
76     return result;
77   }
78 // Marshal output structure to global response buffer.
79 #ifdef TPM_CC_Unseal
80   response_buffer = MemoryGetResponseBuffer(TPM_CC_Unseal) + 10;
81   response_buffer_size = MAX_RESPONSE_SIZE - 10;
82   bytes_marshalled =
83       Unseal_Out_Marshal(&out, tag, &response_buffer, &response_buffer_size);
84   *response_handle_buffer_size = num_response_handles * sizeof(TPM_HANDLE);
85   *response_parameter_buffer_size =
86       bytes_marshalled - *response_handle_buffer_size;
87   return TPM_RC_SUCCESS;
88 #endif
89   return TPM_RC_COMMAND_CODE;
90 }
91