/src/ms-tpm-20-ref/TPMCmd/tpm/src/command/Hierarchy/ClearControl.c
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1 | | /* Microsoft Reference Implementation for TPM 2.0 |
2 | | * |
3 | | * The copyright in this software is being made available under the BSD License, |
4 | | * included below. This software may be subject to other third party and |
5 | | * contributor rights, including patent rights, and no such rights are granted |
6 | | * under this license. |
7 | | * |
8 | | * Copyright (c) Microsoft Corporation |
9 | | * |
10 | | * All rights reserved. |
11 | | * |
12 | | * BSD License |
13 | | * |
14 | | * Redistribution and use in source and binary forms, with or without modification, |
15 | | * are permitted provided that the following conditions are met: |
16 | | * |
17 | | * Redistributions of source code must retain the above copyright notice, this list |
18 | | * of conditions and the following disclaimer. |
19 | | * |
20 | | * Redistributions in binary form must reproduce the above copyright notice, this |
21 | | * list of conditions and the following disclaimer in the documentation and/or |
22 | | * other materials provided with the distribution. |
23 | | * |
24 | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS"" |
25 | | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
26 | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
27 | | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
28 | | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
29 | | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
30 | | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
31 | | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
32 | | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
33 | | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
34 | | */ |
35 | | #include "Tpm.h" |
36 | | #include "ClearControl_fp.h" |
37 | | |
38 | | #if CC_ClearControl // Conditional expansion of this file |
39 | | |
40 | | /*(See part 3 specification) |
41 | | // Enable or disable the execution of TPM2_Clear command |
42 | | */ |
43 | | // Return Type: TPM_RC |
44 | | // TPM_RC_AUTH_FAIL authorization is not properly given |
45 | | TPM_RC |
46 | | TPM2_ClearControl(ClearControl_In* in // IN: input parameter list |
47 | | ) |
48 | 1 | { |
49 | | // The command needs NV update. |
50 | 1 | RETURN_IF_NV_IS_NOT_AVAILABLE; |
51 | | |
52 | | // Input Validation |
53 | | |
54 | | // LockoutAuth may be used to set disableLockoutClear to TRUE but not to FALSE |
55 | 1 | if(in->auth == TPM_RH_LOCKOUT && in->disable == NO) |
56 | 0 | return TPM_RC_AUTH_FAIL; |
57 | | |
58 | | // Internal Data Update |
59 | | |
60 | 1 | if(in->disable == YES) |
61 | 0 | gp.disableClear = TRUE; |
62 | 1 | else |
63 | 1 | gp.disableClear = FALSE; |
64 | | |
65 | | // Record the change to NV |
66 | 1 | NV_SYNC_PERSISTENT(disableClear); |
67 | | |
68 | 1 | return TPM_RC_SUCCESS; |
69 | 1 | } |
70 | | |
71 | | #endif // CC_ClearControl |