1 /* SPDX-License-Identifier: BSD-2-Clause */
2 /***********************************************************************;
3 * Copyright (c) 2015 - 2017, Intel Corporation
4 * All rights reserved.
5 ***********************************************************************/
6
7 #ifdef HAVE_CONFIG_H
8 #include <config.h>
9 #endif
10
11 #include "tss2_tpm2_types.h"
12 #include "tss2_mu.h"
13 #include "sysapi_util.h"
14
Tss2_Sys_ContextSave_Prepare(TSS2_SYS_CONTEXT * sysContext,TPMI_DH_CONTEXT saveHandle)15 TSS2_RC Tss2_Sys_ContextSave_Prepare(
16 TSS2_SYS_CONTEXT *sysContext,
17 TPMI_DH_CONTEXT saveHandle)
18 {
19 _TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
20 TSS2_RC rval;
21
22 if (!ctx)
23 return TSS2_SYS_RC_BAD_REFERENCE;
24
25 rval = CommonPreparePrologue(ctx, TPM2_CC_ContextSave);
26 if (rval)
27 return rval;
28
29 rval = Tss2_MU_UINT32_Marshal(saveHandle, ctx->cmdBuffer,
30 ctx->maxCmdSize,
31 &ctx->nextData);
32 if (rval)
33 return rval;
34
35 ctx->decryptAllowed = 0;
36 ctx->encryptAllowed = 0;
37 ctx->authAllowed = 0;
38
39 return CommonPrepareEpilogue(ctx);
40 }
41
Tss2_Sys_ContextSave_Complete(TSS2_SYS_CONTEXT * sysContext,TPMS_CONTEXT * context)42 TSS2_RC Tss2_Sys_ContextSave_Complete(
43 TSS2_SYS_CONTEXT *sysContext,
44 TPMS_CONTEXT *context)
45 {
46 _TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
47 TSS2_RC rval;
48
49 if (!ctx)
50 return TSS2_SYS_RC_BAD_REFERENCE;
51
52 rval = CommonComplete(ctx);
53 if (rval)
54 return rval;
55
56 return Tss2_MU_TPMS_CONTEXT_Unmarshal(ctx->cmdBuffer,
57 ctx->maxCmdSize,
58 &ctx->nextData,
59 context);
60 }
61
Tss2_Sys_ContextSave(TSS2_SYS_CONTEXT * sysContext,TPMI_DH_CONTEXT saveHandle,TPMS_CONTEXT * context)62 TSS2_RC Tss2_Sys_ContextSave(
63 TSS2_SYS_CONTEXT *sysContext,
64 TPMI_DH_CONTEXT saveHandle,
65 TPMS_CONTEXT *context)
66 {
67 _TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
68 TSS2_RC rval;
69
70 rval = Tss2_Sys_ContextSave_Prepare(sysContext, saveHandle);
71 if (rval)
72 return rval;
73
74 rval = CommonOneCall(ctx, 0, 0);
75 if (rval)
76 return rval;
77
78 return Tss2_Sys_ContextSave_Complete(sysContext, context);
79 }
80