#2056

Committed 20 Jan 2026 10:12PM UTC coverage: 77.177% (-0.006%) from 77.183%

Build # #2056

Build Type

push

travis-ci

Committed by

web-flow

Commit Message

Merge 26872a5bf into c2a8109f8

Run Details

1063 of 1263 new or added lines in 88 files covered. (84.16%)

1810 existing lines in 64 files now uncovered.

36345 of 47093 relevant lines covered (77.18%)

125599.29 hits per line

Source File
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82.5

/src/tpm2/Volatile.c

/********************************************************************************/
/*                                                                                */
/*                          Marshalling and unmarshalling of state                */
/*                             Written by Stefan Berger                                */
/*                       IBM Thomas J. Watson Research Center                        */
/*                                                                                */
/* (c) Copyright IBM Corporation 2017,2018.                                        */
/*                                                                                */
/* All rights reserved.                                                                */
/*                                                                                 */
/* Redistribution and use in source and binary forms, with or without                */
/* modification, are permitted provided that the following conditions are        */
/* met:                                                                                */
/*                                                                                 */
/* Redistributions of source code must retain the above copyright notice,        */
/* this list of conditions and the following disclaimer.                        */
/*                                                                                 */
/* Redistributions in binary form must reproduce the above copyright                */
/* notice, this list of conditions and the following disclaimer in the                */
/* documentation and/or other materials provided with the distribution.                */
/*                                                                                 */
/* Neither the names of the IBM Corporation nor the names of its                */
/* contributors may be used to endorse or promote products derived from                */
/* this software without specific prior written permission.                        */
/*                                                                                 */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS                */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT                */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR        */
/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT                */
/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,        */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT                */
/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,        */
/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY        */
/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT                */
/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE        */
/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                */
/********************************************************************************/

#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	/********************************************************************************/
2	/* */
3	/* Marshalling and unmarshalling of state */
4	/* Written by Stefan Berger */
5	/* IBM Thomas J. Watson Research Center */
6	/* */
7	/* (c) Copyright IBM Corporation 2017,2018. */
8	/* */
9	/* All rights reserved. */
10	/* */
11	/* Redistribution and use in source and binary forms, with or without */
12	/* modification, are permitted provided that the following conditions are */
13	/* met: */
14	/* */
15	/* Redistributions of source code must retain the above copyright notice, */
16	/* this list of conditions and the following disclaimer. */
17	/* */
18	/* Redistributions in binary form must reproduce the above copyright */
19	/* notice, this list of conditions and the following disclaimer in the */
20	/* documentation and/or other materials provided with the distribution. */
21	/* */
22	/* Neither the names of the IBM Corporation nor the names of its */
23	/* contributors may be used to endorse or promote products derived from */
24	/* this software without specific prior written permission. */
25	/* */
26	/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
27	/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
28	/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
29	/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
30	/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
31	/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
32	/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
33	/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */
34	/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
35	/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
36	/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
37	/********************************************************************************/
38
39	#if defined __FreeBSD__ \|\| defined __DragonFly__
40	# include <sys/endian.h>
41	#elif defined __APPLE__
42	# include <libkern/OSByteOrder.h>
43	#else
44	# include <endian.h>
45	#endif
46	#include <string.h>
47
48	#include "config.h"
49
50	#include "assert.h"
51	#include "Marshal.h"
52	#include "Volatile.h"
53	#include "RuntimeAlgorithm_fp.h"
54
55	#define TPM_HAVE_TPM2_DECLARATIONS
56	#include "tpm_library_intern.h"
57
58	TPM_RC
59	VolatileState_Load(BYTE *buffer, INT32 size)	8,014✔
60	{
61	TPM_RC rc = TPM_RC_SUCCESS, irc;	8,014✔
62	BYTE hash[SHA1_DIGEST_SIZE], acthash[SHA1_DIGEST_SIZE];	8,014✔
63	unsigned int stateFormatLevel = 0; // ignored	8,014✔
64	UINT16 hashAlg = TPM_ALG_SHA1;	8,014✔
65	char *oldProfile = NULL;	8,014✔
66
67	if (rc == TPM_RC_SUCCESS) {	8,014✔
68	if ((UINT32)*size < sizeof(hash))	8,014✔
69	return TPM_RC_INSUFFICIENT;
70
71	rc = RuntimeAlgorithmSwitchProfile(&g_RuntimeProfile.RuntimeAlgorithm,	8,014✔
72	NULL, ~0, &oldProfile);
73	if (rc != TPM_RC_SUCCESS)	8,014✔
74	return rc;
75	}
76
77	if (rc == TPM_RC_SUCCESS) {	8,014✔
78
79	CryptHashBlock(hashAlg, size - sizeof(hash), buffer,	8,014✔
80	sizeof(acthash), acthash);
81	rc = VolatileState_Unmarshal(buffer, size);	8,014✔
82	/* specific error has already been reported */
83	}
84
85	if (rc == TPM_RC_SUCCESS) {	8,014✔
86	/*
87	* advance pointer towards hash if we have a later version of
88	* the state that has extra data we didn't read
89	*/
90	if (size > 0 && (UINT32)size > sizeof(hash)) {	8,014✔
91	buffer += size - sizeof(hash);	×
92	*size = sizeof(hash);	×
93	}
94	rc = Array_Unmarshal(hash, sizeof(hash), buffer, size);	8,014✔
95	if (rc != TPM_RC_SUCCESS)	8,014✔
96	TPMLIB_LogTPM2Error("Error unmarshalling volatile state hash: "	×
97	"0x%02x\n", rc);
98	}
99
100	if (rc == TPM_RC_SUCCESS) {	8,014✔
101	if (memcmp(acthash, hash, sizeof(hash))) {	8,014✔
102	rc = TPM_RC_HASH;	×
103	TPMLIB_LogTPM2Error("Volatile state checksum error: 0x%02x\n",	×
104	rc);
105	}
106	}
107
108	irc = RuntimeAlgorithmSetProfile(&g_RuntimeProfile.RuntimeAlgorithm, oldProfile,	8,014✔
109	&stateFormatLevel, ~0);
110	free(oldProfile);	8,014✔
111	if (irc != TPM_RC_SUCCESS && rc == TPM_RC_SUCCESS)	8,014✔
112	rc = irc;	×
113
114	if (rc != TPM_RC_SUCCESS)	8,014✔
NEW 115	_plat__SetInFailureMode(TRUE);	×
116
117	return rc;
118	}
119
120	UINT16
121	VolatileState_Save(BYTE *buffer, INT32 size)	4,018✔
122	{
123	UINT16 written;	4,018✔
124	const BYTE *start;	4,018✔
125	BYTE hash[SHA1_DIGEST_SIZE];	4,018✔
126	TPM_ALG_ID hashAlg = TPM_ALG_SHA1;	4,018✔
127
128	start = *buffer;	4,018✔
129	written = VolatileState_Marshal(buffer, size, &g_RuntimeProfile);	4,018✔
130
131	/* append the checksum */
132	CryptHashBlock(hashAlg, written, start, sizeof(hash), hash);	4,018✔
133	written += Array_Marshal(hash, sizeof(hash), buffer, size);	4,018✔
134
135	return written;	4,018✔
136	}

stefanberger / libtpms / #2056

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