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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/common/crypto/pkcs7-asn1-decoder.cpp
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/common/crypto/pkcs7-asn1-decoder.cpp')
-rw-r--r--src/VBox/Runtime/common/crypto/pkcs7-asn1-decoder.cpp174
1 files changed, 174 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/crypto/pkcs7-asn1-decoder.cpp b/src/VBox/Runtime/common/crypto/pkcs7-asn1-decoder.cpp
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@@ -0,0 +1,174 @@
+/* $Id: pkcs7-asn1-decoder.cpp $ */
+/** @file
+ * IPRT - Crypto - PKCS \#7, Decoder for ASN.1.
+ */
+
+/*
+ * 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/pkcs7.h>
+
+#include <iprt/err.h>
+#include <iprt/string.h>
+#include <iprt/crypto/spc.h>
+#include <iprt/crypto/tsp.h>
+
+#include "pkcs7-internal.h"
+
+
+/*
+ * PKCS #7 ContentInfo
+ */
+typedef enum RTCRPKCS7CONTENTINFOCHOICE
+{
+ RTCRPKCS7CONTENTINFOCHOICE_INVALID = 0,
+ RTCRPKCS7CONTENTINFOCHOICE_UNKNOWN,
+ RTCRPKCS7CONTENTINFOCHOICE_SIGNED_DATA,
+ RTCRPKCS7CONTENTINFOCHOICE_SPC_INDIRECT_DATA_CONTENT,
+ RTCRPKCS7CONTENTINFOCHOICE_TSP_TST_INFO,
+ RTCRPKCS7CONTENTINFOCHOICE_END,
+ RTCRPKCS7CONTENTINFOCHOICE_32BIT_HACK = 0x7fffffff
+} RTCRPKCS7CONTENTINFOCHOICE;
+
+static int rtCrPkcs7ContentInfo_DecodeExtra(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTCRPKCS7CONTENTINFO pThis,
+ const char *pszErrorTag)
+{
+ RT_NOREF_PV(fFlags); RT_NOREF_PV(pszErrorTag);
+ pThis->u.pCore = NULL;
+
+ /*
+ * Figure the type.
+ */
+ RTCRPKCS7CONTENTINFOCHOICE enmChoice;
+ size_t cbContent = 0;
+ if (RTAsn1ObjId_CompareWithString(&pThis->ContentType, RTCRPKCS7SIGNEDDATA_OID) == 0)
+ {
+ enmChoice = RTCRPKCS7CONTENTINFOCHOICE_SIGNED_DATA;
+ cbContent = sizeof(*pThis->u.pSignedData);
+ }
+ else if (RTAsn1ObjId_CompareWithString(&pThis->ContentType, RTCRSPCINDIRECTDATACONTENT_OID) == 0)
+ {
+ enmChoice = RTCRPKCS7CONTENTINFOCHOICE_SPC_INDIRECT_DATA_CONTENT;
+ cbContent = sizeof(*pThis->u.pIndirectDataContent);
+ }
+ else if (RTAsn1ObjId_CompareWithString(&pThis->ContentType, RTCRTSPTSTINFO_OID) == 0)
+ {
+ enmChoice = RTCRPKCS7CONTENTINFOCHOICE_TSP_TST_INFO;
+ cbContent = sizeof(*pThis->u.pTstInfo);
+ }
+ else
+ {
+ enmChoice = RTCRPKCS7CONTENTINFOCHOICE_UNKNOWN;
+ cbContent = 0;
+ }
+
+ int rc = VINF_SUCCESS;
+ if (enmChoice != RTCRPKCS7CONTENTINFOCHOICE_UNKNOWN)
+ {
+ /*
+ * Detect CMS octet string format and open the content cursor.
+ *
+ * Current we don't have any octent string content which, they're all
+ * sequences, which make detection so much simpler.
+ */
+ PRTASN1OCTETSTRING pOctetString = &pThis->Content;
+ RTASN1CURSOR ContentCursor;
+ rc = RTAsn1CursorInitSubFromCore(pCursor, &pThis->Content.Asn1Core, &ContentCursor, "Content");
+ if ( RT_SUCCESS(rc)
+ && RTAsn1CursorIsNextEx(&ContentCursor, ASN1_TAG_OCTET_STRING, ASN1_TAGFLAG_PRIMITIVE | ASN1_TAGCLASS_UNIVERSAL))
+ {
+ rc = RTAsn1MemAllocZ(&pThis->Content.EncapsulatedAllocation, (void **)&pThis->Content.pEncapsulated,
+ sizeof(*pOctetString));
+ if (RT_SUCCESS(rc))
+ {
+ pThis->pCmsContent = pOctetString = (PRTASN1OCTETSTRING)pThis->Content.pEncapsulated;
+ rc = RTAsn1OctetString_DecodeAsn1(&ContentCursor, 0, pOctetString, "CmsContent");
+ if (RT_SUCCESS(rc))
+ rc = RTAsn1CursorCheckEnd(&ContentCursor);
+ if (RT_SUCCESS(rc))
+ rc = RTAsn1CursorInitSubFromCore(pCursor, &pOctetString->Asn1Core, &ContentCursor, "CmsContent");
+ }
+ }
+ if (RT_SUCCESS(rc))
+ {
+ /*
+ * Allocate memory for the decoded content.
+ */
+ rc = RTAsn1MemAllocZ(&pOctetString->EncapsulatedAllocation, (void **)&pOctetString->pEncapsulated, cbContent);
+ if (RT_SUCCESS(rc))
+ {
+ pThis->u.pCore = pOctetString->pEncapsulated;
+
+ /*
+ * Decode it.
+ */
+ switch (enmChoice)
+ {
+ case RTCRPKCS7CONTENTINFOCHOICE_SIGNED_DATA:
+ rc = RTCrPkcs7SignedData_DecodeAsn1(&ContentCursor, 0, pThis->u.pSignedData, "SignedData");
+ break;
+ case RTCRPKCS7CONTENTINFOCHOICE_SPC_INDIRECT_DATA_CONTENT:
+ rc = RTCrSpcIndirectDataContent_DecodeAsn1(&ContentCursor, 0, pThis->u.pIndirectDataContent,
+ "IndirectDataContent");
+ break;
+ case RTCRPKCS7CONTENTINFOCHOICE_TSP_TST_INFO:
+ rc = RTCrTspTstInfo_DecodeAsn1(&ContentCursor, 0, pThis->u.pTstInfo, "TstInfo");
+ break;
+ default:
+ AssertFailed();
+ rc = VERR_IPE_NOT_REACHED_DEFAULT_CASE;
+ break;
+ }
+ if (RT_SUCCESS(rc))
+ rc = RTAsn1CursorCheckOctStrEnd(&ContentCursor, &pThis->Content);
+ if (RT_SUCCESS(rc))
+ return VINF_SUCCESS;
+
+ RTAsn1MemFree(&pOctetString->EncapsulatedAllocation, pOctetString->pEncapsulated);
+ pOctetString->pEncapsulated = NULL;
+ pThis->u.pCore = NULL;
+ }
+ }
+ }
+ return rc;
+}
+
+
+/*
+ * Generate the code.
+ */
+#include <iprt/asn1-generator-asn1-decoder.h>
+