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/* $Id: spc-sanity.cpp $ */
/** @file
* IPRT - Crypto - Microsoft SPC / Authenticode, Sanity Checkers.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include <iprt/crypto/spc.h>
#include <iprt/assert.h>
#include <iprt/err.h>
#include <iprt/uuid.h>
#include "spc-internal.h"
RTDECL(int) RTCrSpcIndirectDataContent_CheckSanityEx(PCRTCRSPCINDIRECTDATACONTENT pIndData,
PCRTCRPKCS7SIGNEDDATA pSignedData,
uint32_t fFlags,
PRTERRINFO pErrInfo)
{
/*
* Match up the digest algorithms (page 8, v1.0).
*/
if (pSignedData->SignerInfos.cItems != 1)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_NOT_EXACTLY_ONE_SIGNER_INFOS,
"SpcIndirectDataContent expects SignedData to have exactly one SignerInfos entries, found: %u",
pSignedData->SignerInfos.cItems);
if (pSignedData->DigestAlgorithms.cItems != 1)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_NOT_EXACTLY_ONE_DIGEST_ALGO,
"SpcIndirectDataContent expects SignedData to have exactly one DigestAlgorithms entries, found: %u",
pSignedData->DigestAlgorithms.cItems);
if (RTCrX509AlgorithmIdentifier_Compare(&pIndData->DigestInfo.DigestAlgorithm, /** @todo not entirely sure about this check... */
&pSignedData->SignerInfos.papItems[0]->DigestAlgorithm) != 0)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_SIGNED_IND_DATA_DIGEST_ALGO_MISMATCH,
"SpcIndirectDataContent DigestInfo and SignerInfos algorithms mismatch: %s vs %s",
pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId,
pSignedData->SignerInfos.papItems[0]->DigestAlgorithm.Algorithm.szObjId);
if (RTCrX509AlgorithmIdentifier_Compare(&pIndData->DigestInfo.DigestAlgorithm,
pSignedData->DigestAlgorithms.papItems[0]) != 0)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_IND_DATA_DIGEST_ALGO_NOT_IN_DIGEST_ALGOS,
"SpcIndirectDataContent DigestInfo and SignedData.DigestAlgorithms[0] mismatch: %s vs %s",
pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId,
pSignedData->DigestAlgorithms.papItems[0]->Algorithm.szObjId);
if (fFlags & RTCRSPCINDIRECTDATACONTENT_SANITY_F_ONLY_KNOWN_HASH)
{
if ( RTCrX509AlgorithmIdentifier_GetDigestType(&pIndData->DigestInfo.DigestAlgorithm, true /*fPureDigestsOnly*/)
== RTDIGESTTYPE_INVALID)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_UNKNOWN_DIGEST_ALGO,
"SpcIndirectDataContent DigestAlgortihm is not known: %s",
pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId);
}
uint32_t cbDigest = RTCrX509AlgorithmIdentifier_GetDigestSize(&pIndData->DigestInfo.DigestAlgorithm,
true /*fPureDigestsOnly*/);
if ( pIndData->DigestInfo.Digest.Asn1Core.cb != cbDigest
&& (cbDigest != UINT32_MAX || (fFlags & RTCRSPCINDIRECTDATACONTENT_SANITY_F_ONLY_KNOWN_HASH)))
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_IND_DATA_DIGEST_SIZE_MISMATCH,
"SpcIndirectDataContent Digest size mismatch with algorithm: %u, expected %u (%s)",
pIndData->DigestInfo.Digest.Asn1Core.cb, cbDigest,
pIndData->DigestInfo.DigestAlgorithm.Algorithm.szObjId);
/*
* Data.
*/
if (fFlags & RTCRSPCINDIRECTDATACONTENT_SANITY_F_PE_IMAGE)
{
if ( pIndData->Data.enmType != RTCRSPCAAOVTYPE_PE_IMAGE_DATA
|| RTAsn1ObjId_CompareWithString(&pIndData->Data.Type, RTCRSPCPEIMAGEDATA_OID) != 0)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_EXPECTED_PE_IMAGE_DATA,
"SpcIndirectDataContent.Data.Type is %s, expected %s (SpcPeImageData) [enmType=%d]",
pIndData->Data.Type.szObjId, RTCRSPCPEIMAGEDATA_OID, pIndData->Data.enmType);
if ( pIndData->Data.uValue.pPeImage
|| !RTCrSpcPeImageData_IsPresent(pIndData->Data.uValue.pPeImage) )
return RTErrInfoSet(pErrInfo, VERR_CR_SPC_PEIMAGE_DATA_NOT_PRESENT,
"SpcIndirectDataContent.Data.uValue/PEImage is missing");
if ( pIndData->Data.uValue.pPeImage->T0.File.enmChoice == RTCRSPCLINKCHOICE_MONIKER
&& RTCrSpcSerializedObject_IsPresent(pIndData->Data.uValue.pPeImage->T0.File.u.pMoniker) )
{
PCRTCRSPCSERIALIZEDOBJECT pObj = pIndData->Data.uValue.pPeImage->T0.File.u.pMoniker;
if (pObj->Uuid.Asn1Core.cb != sizeof(RTUUID))
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_BAD_MONIKER_UUID,
"SpcIndirectDataContent...MonikerT1.Uuid incorrect size: %u, expected %u.",
pObj->Uuid.Asn1Core.cb, sizeof(RTUUID));
if (RTUuidCompareStr(pObj->Uuid.Asn1Core.uData.pUuid, RTCRSPCSERIALIZEDOBJECT_UUID_STR) != 0)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_UNKNOWN_MONIKER_UUID,
"SpcIndirectDataContent...MonikerT1.Uuid mismatch: %RTuuid, expected %s.",
pObj->Uuid.Asn1Core.uData.pUuid, RTCRSPCSERIALIZEDOBJECT_UUID_STR);
if (pObj->enmType != RTCRSPCSERIALIZEDOBJECTTYPE_ATTRIBUTES)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_BAD_MONIKER_CHOICE,
"SpcIndirectDataContent...pMoniker->enmType=%d, expected %d.",
pObj->enmType, RTCRSPCSERIALIZEDOBJECTTYPE_ATTRIBUTES);
if (!pObj->u.pData)
return RTErrInfoSet(pErrInfo, VERR_CR_SPC_MONIKER_BAD_DATA,
"SpcIndirectDataContent...pMoniker->pData is NULL.");
uint32_t cPageHashTabs = 0;
for (uint32_t i = 0; i < pObj->u.pData->cItems; i++)
{
PCRTCRSPCSERIALIZEDOBJECTATTRIBUTE pAttr = pObj->u.pData->papItems[i];
if ( RTAsn1ObjId_CompareWithString(&pAttr->Type, RTCRSPC_PE_IMAGE_HASHES_V1_OID) == 0
|| RTAsn1ObjId_CompareWithString(&pAttr->Type, RTCRSPC_PE_IMAGE_HASHES_V2_OID) == 0 )
{
cPageHashTabs++;
AssertPtr(pAttr->u.pPageHashes->pData);
}
else
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_PEIMAGE_UNKNOWN_ATTRIBUTE,
"SpcIndirectDataContent...MonikerT1 unknown attribute %u: %s.",
i, pAttr->Type.szObjId);
}
if (cPageHashTabs > 0)
return RTErrInfoSetF(pErrInfo, VERR_CR_SPC_PEIMAGE_MULTIPLE_HASH_TABS,
"SpcIndirectDataContent...MonikerT1 multiple page hash attributes (%u).", cPageHashTabs);
}
else if ( pIndData->Data.uValue.pPeImage->T0.File.enmChoice == RTCRSPCLINKCHOICE_FILE
&& RTCrSpcString_IsPresent(&pIndData->Data.uValue.pPeImage->T0.File.u.pT2->File) )
{
/* Could check for "<<<Obsolete>>>" here, but it's really irrelevant. */
}
else if ( pIndData->Data.uValue.pPeImage->T0.File.enmChoice == RTCRSPCLINKCHOICE_URL
&& RTAsn1String_IsPresent(pIndData->Data.uValue.pPeImage->T0.File.u.pUrl) )
return RTErrInfoSet(pErrInfo, VERR_CR_SPC_PEIMAGE_URL_UNEXPECTED,
"SpcIndirectDataContent.Data.uValue.pPeImage->File is an URL, expected object Moniker or File.");
else
return RTErrInfoSet(pErrInfo, VERR_CR_SPC_PEIMAGE_NO_CONTENT,
"SpcIndirectDataContent.Data.uValue.pPeImage->File has no content");
}
return VINF_SUCCESS;
}
/*
* Generate the standard core code.
*/
#include <iprt/asn1-generator-sanity.h>
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