Coverage Report

Created: 2026-02-14 06:53

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/tpm2-tss/src/tss2-sys/api/Tss2_Sys_EncryptDecrypt.c
Line
Count
Source
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" // IWYU pragma: keep
9
#endif
10
11
#include "sysapi_util.h"     // for _TSS2_SYS_CONTEXT_BLOB, syscontext_cast
12
#include "tss2_common.h"     // for TSS2_RC, TSS2_SYS_RC_BAD_REFERENCE
13
#include "tss2_mu.h"         // for Tss2_MU_UINT16_Marshal, Tss2_MU_TPM2B_I...
14
#include "tss2_sys.h"        // for TSS2_SYS_CONTEXT, TSS2L_SYS_AUTH_COMMAND
15
#include "tss2_tpm2_types.h" // for TPM2B_IV, TPM2B_MAX_BUFFER, TPMI_ALG_CI...
16
17
TSS2_RC
18
Tss2_Sys_EncryptDecrypt_Prepare(TSS2_SYS_CONTEXT       *sysContext,
19
                                TPMI_DH_OBJECT          keyHandle,
20
                                TPMI_YES_NO             decrypt,
21
                                TPMI_ALG_CIPHER_MODE    mode,
22
                                const TPM2B_IV         *ivIn,
23
0
                                const TPM2B_MAX_BUFFER *inData) {
24
0
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
25
0
    TSS2_RC                rval;
26
27
0
    if (!ctx)
28
0
        return TSS2_SYS_RC_BAD_REFERENCE;
29
30
0
    rval = CommonPreparePrologue(ctx, TPM2_CC_EncryptDecrypt);
31
0
    if (rval)
32
0
        return rval;
33
34
0
    rval = Tss2_MU_UINT32_Marshal(keyHandle, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
35
0
    if (rval)
36
0
        return rval;
37
38
0
    rval = Tss2_MU_UINT8_Marshal(decrypt, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
39
0
    if (rval)
40
0
        return rval;
41
42
0
    rval = Tss2_MU_UINT16_Marshal(mode, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
43
0
    if (rval)
44
0
        return rval;
45
46
0
    if (!ivIn) {
47
0
        rval = Tss2_MU_UINT16_Marshal(0, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
48
49
0
    } else {
50
51
0
        rval = Tss2_MU_TPM2B_IV_Marshal(ivIn, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
52
0
    }
53
54
0
    if (rval)
55
0
        return rval;
56
57
0
    if (!inData) {
58
0
        rval = Tss2_MU_UINT16_Marshal(0, ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData);
59
60
0
    } else {
61
62
0
        rval = Tss2_MU_TPM2B_MAX_BUFFER_Marshal(inData, ctx->cmdBuffer, ctx->maxCmdSize,
63
0
                                                &ctx->nextData);
64
0
    }
65
66
0
    if (rval)
67
0
        return rval;
68
69
0
    ctx->decryptAllowed = 0;
70
0
    ctx->encryptAllowed = 1;
71
0
    ctx->authAllowed = 1;
72
73
0
    return CommonPrepareEpilogue(ctx);
74
0
}
75
76
TSS2_RC
77
Tss2_Sys_EncryptDecrypt_Complete(TSS2_SYS_CONTEXT *sysContext,
78
                                 TPM2B_MAX_BUFFER *outData,
79
0
                                 TPM2B_IV         *ivOut) {
80
0
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
81
0
    TSS2_RC                rval;
82
83
0
    if (!ctx)
84
0
        return TSS2_SYS_RC_BAD_REFERENCE;
85
86
0
    rval = CommonComplete(ctx);
87
0
    if (rval)
88
0
        return rval;
89
90
0
    rval = Tss2_MU_TPM2B_MAX_BUFFER_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData,
91
0
                                              outData);
92
0
    if (rval)
93
0
        return rval;
94
95
0
    return Tss2_MU_TPM2B_IV_Unmarshal(ctx->cmdBuffer, ctx->maxCmdSize, &ctx->nextData, ivOut);
96
0
}
97
98
TSS2_RC
99
Tss2_Sys_EncryptDecrypt(TSS2_SYS_CONTEXT             *sysContext,
100
                        TPMI_DH_OBJECT                keyHandle,
101
                        TSS2L_SYS_AUTH_COMMAND const *cmdAuthsArray,
102
                        TPMI_YES_NO                   decrypt,
103
                        TPMI_ALG_CIPHER_MODE          mode,
104
                        const TPM2B_IV               *ivIn,
105
                        const TPM2B_MAX_BUFFER       *inData,
106
                        TPM2B_MAX_BUFFER             *outData,
107
                        TPM2B_IV                     *ivOut,
108
0
                        TSS2L_SYS_AUTH_RESPONSE      *rspAuthsArray) {
109
0
    TSS2_SYS_CONTEXT_BLOB *ctx = syscontext_cast(sysContext);
110
0
    TSS2_RC                rval;
111
112
0
    rval = Tss2_Sys_EncryptDecrypt_Prepare(sysContext, keyHandle, decrypt, mode, ivIn, inData);
113
0
    if (rval)
114
0
        return rval;
115
116
0
    rval = CommonOneCall(ctx, cmdAuthsArray, rspAuthsArray);
117
0
    if (rval)
118
0
        return rval;
119
120
0
    return Tss2_Sys_EncryptDecrypt_Complete(sysContext, outData, ivOut);
121
0
}