#2063

Committed 11 Feb 2026 02:58PM UTC coverage: 77.18% (-0.02%) from 77.195%

Build # #2063

Build Type

push

travis-ci

Committed by

web-flow

Commit Message

Merge c175b6f1e into c2a8109f8

Run Details

1174 of 1370 new or added lines in 95 files covered. (85.69%)

2190 existing lines in 89 files now uncovered.

36347 of 47094 relevant lines covered (77.18%)

125164.35 hits per line

Source File
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82.5

/src/tpm2/Volatile.c

// SPDX-License-Identifier: BSD-2-Clause

// (c) Copyright IBM Corporation 2017,2018.

#if defined __FreeBSD__ || defined __DragonFly__
# include <sys/endian.h>
#elif defined __APPLE__
# include <libkern/OSByteOrder.h>
#else
# include <endian.h>
#endif
#include <string.h>

#include "config.h"

#include "assert.h"
#include "Marshal.h"
#include "Volatile.h"
#include "RuntimeAlgorithm_fp.h"

#define TPM_HAVE_TPM2_DECLARATIONS
#include "tpm_library_intern.h"

TPM_RC
VolatileState_Load(BYTE **buffer, INT32 *size)
{
    TPM_RC rc = TPM_RC_SUCCESS, irc;
    BYTE hash[SHA1_DIGEST_SIZE], acthash[SHA1_DIGEST_SIZE];
    unsigned int stateFormatLevel = 0; // ignored
    UINT16 hashAlg = TPM_ALG_SHA1;
    char *oldProfile = NULL;

    if (rc == TPM_RC_SUCCESS) {
        if ((UINT32)*size < sizeof(hash))
            return TPM_RC_INSUFFICIENT;

        rc = RuntimeAlgorithmSwitchProfile(&g_RuntimeProfile.RuntimeAlgorithm,
                                           NULL, ~0, &oldProfile);
        if (rc != TPM_RC_SUCCESS)
            return rc;
    }

    if (rc == TPM_RC_SUCCESS) {

        CryptHashBlock(hashAlg, *size - sizeof(hash), *buffer,
                       sizeof(acthash), acthash);
        rc = VolatileState_Unmarshal(buffer, size);
        /* specific error has already been reported */
    }

    if (rc == TPM_RC_SUCCESS) {
        /*
         * advance pointer towards hash if we have a later version of
         * the state that has extra data we didn't read
         */
        if (*size > 0 && (UINT32)*size > sizeof(hash)) {
            *buffer += *size - sizeof(hash);
            *size = sizeof(hash);
        }
        rc = Array_Unmarshal(hash, sizeof(hash), buffer, size);
        if (rc != TPM_RC_SUCCESS)
            TPMLIB_LogTPM2Error("Error unmarshalling volatile state hash: "
                                "0x%02x\n", rc);
    }

    if (rc == TPM_RC_SUCCESS) {
        if (memcmp(acthash, hash, sizeof(hash))) {
            rc = TPM_RC_HASH;
            TPMLIB_LogTPM2Error("Volatile state checksum error: 0x%02x\n",
                                rc);
        }
    }

    irc = RuntimeAlgorithmSetProfile(&g_RuntimeProfile.RuntimeAlgorithm, oldProfile,
                                     &stateFormatLevel, ~0);
    free(oldProfile);
    if (irc != TPM_RC_SUCCESS && rc == TPM_RC_SUCCESS)
        rc = irc;

    if (rc != TPM_RC_SUCCESS)
        _plat__SetInFailureMode(TRUE);

    return rc;
}

UINT16
VolatileState_Save(BYTE **buffer, INT32 *size)
{
    UINT16 written;
    const BYTE *start;
    BYTE hash[SHA1_DIGEST_SIZE];
    TPM_ALG_ID hashAlg = TPM_ALG_SHA1;

    start = *buffer;
    written = VolatileState_Marshal(buffer, size, &g_RuntimeProfile);

    /* append the checksum */
    CryptHashBlock(hashAlg, written, start, sizeof(hash), hash);
    written += Array_Marshal(hash, sizeof(hash), buffer, size);

    return written;
}

1	// SPDX-License-Identifier: BSD-2-Clause
2
3	// (c) Copyright IBM Corporation 2017,2018.
4
5	#if defined __FreeBSD__ \|\| defined __DragonFly__
6	# include <sys/endian.h>
7	#elif defined __APPLE__
8	# include <libkern/OSByteOrder.h>
9	#else
10	# include <endian.h>
11	#endif
12	#include <string.h>
13
14	#include "config.h"
15
16	#include "assert.h"
17	#include "Marshal.h"
18	#include "Volatile.h"
19	#include "RuntimeAlgorithm_fp.h"
20
21	#define TPM_HAVE_TPM2_DECLARATIONS
22	#include "tpm_library_intern.h"
23
24	TPM_RC
25	VolatileState_Load(BYTE *buffer, INT32 size)	8,014✔
26	{
27	TPM_RC rc = TPM_RC_SUCCESS, irc;	8,014✔
28	BYTE hash[SHA1_DIGEST_SIZE], acthash[SHA1_DIGEST_SIZE];	8,014✔
29	unsigned int stateFormatLevel = 0; // ignored	8,014✔
30	UINT16 hashAlg = TPM_ALG_SHA1;	8,014✔
31	char *oldProfile = NULL;	8,014✔
32
33	if (rc == TPM_RC_SUCCESS) {	8,014✔
34	if ((UINT32)*size < sizeof(hash))	8,014✔
35	return TPM_RC_INSUFFICIENT;
36
37	rc = RuntimeAlgorithmSwitchProfile(&g_RuntimeProfile.RuntimeAlgorithm,	8,014✔
38	NULL, ~0, &oldProfile);
39	if (rc != TPM_RC_SUCCESS)	8,014✔
40	return rc;
41	}
42
43	if (rc == TPM_RC_SUCCESS) {	8,014✔
44
45	CryptHashBlock(hashAlg, size - sizeof(hash), buffer,	8,014✔
46	sizeof(acthash), acthash);
47	rc = VolatileState_Unmarshal(buffer, size);	8,014✔
48	/* specific error has already been reported */
49	}
50
51	if (rc == TPM_RC_SUCCESS) {	8,014✔
52	/*
53	* advance pointer towards hash if we have a later version of
54	* the state that has extra data we didn't read
55	*/
56	if (size > 0 && (UINT32)size > sizeof(hash)) {	8,014✔
UNCOV 57	buffer += size - sizeof(hash);	×
UNCOV 58	*size = sizeof(hash);	×
59	}
60	rc = Array_Unmarshal(hash, sizeof(hash), buffer, size);	8,014✔
61	if (rc != TPM_RC_SUCCESS)	8,014✔
UNCOV 62	TPMLIB_LogTPM2Error("Error unmarshalling volatile state hash: "	×
63	"0x%02x\n", rc);
64	}
65
66	if (rc == TPM_RC_SUCCESS) {	8,014✔
67	if (memcmp(acthash, hash, sizeof(hash))) {	8,014✔
UNCOV 68	rc = TPM_RC_HASH;	×
UNCOV 69	TPMLIB_LogTPM2Error("Volatile state checksum error: 0x%02x\n",	×
70	rc);
71	}
72	}
73
74	irc = RuntimeAlgorithmSetProfile(&g_RuntimeProfile.RuntimeAlgorithm, oldProfile,	8,014✔
75	&stateFormatLevel, ~0);
76	free(oldProfile);	8,014✔
77	if (irc != TPM_RC_SUCCESS && rc == TPM_RC_SUCCESS)	8,014✔
UNCOV 78	rc = irc;	×
79
80	if (rc != TPM_RC_SUCCESS)	8,014✔
NEW 81	_plat__SetInFailureMode(TRUE);	×
82
83	return rc;
84	}
85
86	UINT16
87	VolatileState_Save(BYTE *buffer, INT32 size)	4,018✔
88	{
89	UINT16 written;	4,018✔
90	const BYTE *start;	4,018✔
91	BYTE hash[SHA1_DIGEST_SIZE];	4,018✔
92	TPM_ALG_ID hashAlg = TPM_ALG_SHA1;	4,018✔
93
94	start = *buffer;	4,018✔
95	written = VolatileState_Marshal(buffer, size, &g_RuntimeProfile);	4,018✔
96
97	/* append the checksum */
98	CryptHashBlock(hashAlg, written, start, sizeof(hash), hash);	4,018✔
99	written += Array_Marshal(hash, sizeof(hash), buffer, size);	4,018✔
100
101	return written;	4,018✔
102	}

stefanberger / libtpms / #2063

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