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-rw-r--r--src/VBox/Runtime/common/asn1/asn1-ut-dyntype-decode.cpp250
1 files changed, 250 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/asn1/asn1-ut-dyntype-decode.cpp b/src/VBox/Runtime/common/asn1/asn1-ut-dyntype-decode.cpp
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index 00000000..bc48688a
--- /dev/null
+++ b/src/VBox/Runtime/common/asn1/asn1-ut-dyntype-decode.cpp
@@ -0,0 +1,250 @@
+/* $Id: asn1-ut-dyntype-decode.cpp $ */
+/** @file
+ * IPRT - ASN.1, Dynamic Type, Decoding.
+ */
+
+/*
+ * 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/asn1.h>
+
+#include <iprt/err.h>
+#include <iprt/string.h>
+
+#include <iprt/formats/asn1.h>
+
+
+
+RTDECL(int) RTAsn1DynType_DecodeAsn1(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1DYNTYPE pDynType, const char *pszErrorTag)
+{
+ RT_ZERO(*pDynType);
+
+ Assert(!(fFlags & RTASN1CURSOR_GET_F_IMPLICIT)); RT_NOREF_PV(fFlags);
+ uint32_t cbSavedLeft = pCursor->cbLeft;
+ uint8_t const *pbSavedCur = pCursor->pbCur;
+
+ int rc = RTAsn1CursorReadHdr(pCursor, &pDynType->u.Core, pszErrorTag);
+ if (RT_SUCCESS(rc))
+ {
+ pDynType->enmType = RTASN1TYPE_CORE;
+
+ if (pDynType->u.Core.fClass == (ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE))
+ {
+ switch (pDynType->u.Core.uTag)
+ {
+ case ASN1_TAG_BOOLEAN:
+ pDynType->enmType = RTASN1TYPE_BOOLEAN;
+ break;
+ case ASN1_TAG_INTEGER:
+ pDynType->enmType = RTASN1TYPE_INTEGER;
+ break;
+ //case ASN1_TAG_ENUMERATED:
+ // pDynType->enmType = RTASN1TYPE_ENUMERATED;
+ // break;
+ //case ASN1_TAG_REAL:
+ // pDynType->enmType = RTASN1TYPE_REAL;
+ // break;
+ case ASN1_TAG_BIT_STRING:
+ pDynType->enmType = RTASN1TYPE_BIT_STRING;
+ break;
+ case ASN1_TAG_OCTET_STRING:
+ pDynType->enmType = RTASN1TYPE_OCTET_STRING;
+ break;
+ case ASN1_TAG_NULL:
+ pDynType->enmType = RTASN1TYPE_NULL;
+ break;
+ case ASN1_TAG_SEQUENCE:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 SEQUENCE shall be constructed.");
+ case ASN1_TAG_SET:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 SET shall be constructed.");
+ case ASN1_TAG_OID:
+ pDynType->enmType = RTASN1TYPE_OBJID;
+ break;
+ //case ASN1_TAG_RELATIVE_OID:
+ // pDynType->enmType = RTASN1TYPE_RELATIVE_OBJID;
+ // break;
+ case ASN1_TAG_UTC_TIME:
+ case ASN1_TAG_GENERALIZED_TIME:
+ pDynType->enmType = RTASN1TYPE_TIME;
+ break;
+ case ASN1_TAG_UTF8_STRING:
+ case ASN1_TAG_NUMERIC_STRING:
+ case ASN1_TAG_PRINTABLE_STRING:
+ case ASN1_TAG_T61_STRING:
+ case ASN1_TAG_VIDEOTEX_STRING:
+ case ASN1_TAG_IA5_STRING:
+ case ASN1_TAG_GRAPHIC_STRING:
+ case ASN1_TAG_VISIBLE_STRING:
+ case ASN1_TAG_UNIVERSAL_STRING:
+ case ASN1_TAG_GENERAL_STRING:
+ case ASN1_TAG_BMP_STRING:
+ pDynType->enmType = RTASN1TYPE_STRING;
+ break;
+ //case ASN1_TAG_CHARACTER_STRING:
+ // pDynType->enmType = RTASN1TYPE_CHARACTER_STRING;
+ // break;
+
+ default:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_TAG_NOT_IMPL,
+ "Primitive tag %u (%#x) not implemented.",
+ pDynType->u.Core.uTag, pDynType->u.Core.uTag);
+ }
+ }
+ else if (pDynType->u.Core.fClass == (ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_CONSTRUCTED))
+ switch (pDynType->u.Core.uTag)
+ {
+ case ASN1_TAG_BOOLEAN:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 BOOLEAN shall be primitive.");
+ case ASN1_TAG_INTEGER:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 BOOLEAN shall be primitive.");
+ case ASN1_TAG_ENUMERATED:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 ENUMERATED shall be primitive.");
+ case ASN1_TAG_REAL:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 REAL shall be primitive.");
+ case ASN1_TAG_BIT_STRING:
+ pDynType->enmType = RTASN1TYPE_BIT_STRING;
+ break;
+ case ASN1_TAG_OCTET_STRING:
+ pDynType->enmType = RTASN1TYPE_OCTET_STRING;
+ break;
+ case ASN1_TAG_NULL:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 NULL shall be primitive.");
+ case ASN1_TAG_SEQUENCE:
+#if 0
+ pDynType->enmType = RTASN1TYPE_SEQUENCE_CORE;
+ pDynType->u.SeqCore.Asn1Core.fFlags |= RTASN1CORE_F_PRIMITE_TAG_STRUCT;
+ RTAsn1CursorSkip(pCursor, pDynType->u.Core.cb);
+ return VINF_SUCCESS;
+#else
+ pDynType->enmType = RTASN1TYPE_CORE;
+#endif
+ break;
+ case ASN1_TAG_SET:
+#if 0
+ pDynType->enmType = RTASN1TYPE_SET_CORE;
+ pDynType->u.SeqCore.Asn1Core.fFlags |= RTASN1CORE_F_PRIMITE_TAG_STRUCT;
+ RTAsn1CursorSkip(pCursor, pDynType->u.Core.cb);
+ return VINF_SUCCESS;
+#else
+ pDynType->enmType = RTASN1TYPE_CORE;
+#endif
+ break;
+ case ASN1_TAG_OID:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 OBJECT ID shall be primitive.");
+ case ASN1_TAG_RELATIVE_OID:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 RELATIVE OID shall be primitive.");
+
+ case ASN1_TAG_UTF8_STRING:
+ case ASN1_TAG_NUMERIC_STRING:
+ case ASN1_TAG_PRINTABLE_STRING:
+ case ASN1_TAG_T61_STRING:
+ case ASN1_TAG_VIDEOTEX_STRING:
+ case ASN1_TAG_IA5_STRING:
+ case ASN1_TAG_GRAPHIC_STRING:
+ case ASN1_TAG_VISIBLE_STRING:
+ case ASN1_TAG_UNIVERSAL_STRING:
+ case ASN1_TAG_GENERAL_STRING:
+ case ASN1_TAG_BMP_STRING:
+ pDynType->enmType = RTASN1TYPE_STRING;
+ break;
+ //case ASN1_TAG_CHARACTER_STRING:
+ // pDynType->enmType = RTASN1TYPE_CHARACTER_STRING;
+ // break;
+
+ default:
+ RT_ZERO(*pDynType);
+ return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_TAG_NOT_IMPL,
+ "Constructed tag %u (%#x) not implemented.",
+ pDynType->u.Core.uTag, pDynType->u.Core.uTag);
+ }
+ else
+ Assert(pDynType->enmType == RTASN1TYPE_CORE);
+
+ /*
+ * Restore the cursor and redo with specific type.
+ */
+ pCursor->pbCur = pbSavedCur;
+ pCursor->cbLeft = cbSavedLeft;
+
+ switch (pDynType->enmType)
+ {
+ case RTASN1TYPE_INTEGER:
+ rc = RTAsn1Integer_DecodeAsn1(pCursor, 0, &pDynType->u.Integer, pszErrorTag);
+ break;
+ case RTASN1TYPE_BOOLEAN:
+ rc = RTAsn1Boolean_DecodeAsn1(pCursor, 0, &pDynType->u.Boolean, pszErrorTag);
+ break;
+ case RTASN1TYPE_OBJID:
+ rc = RTAsn1ObjId_DecodeAsn1(pCursor, 0, &pDynType->u.ObjId, pszErrorTag);
+ break;
+ case RTASN1TYPE_BIT_STRING:
+ rc = RTAsn1BitString_DecodeAsn1(pCursor, 0, &pDynType->u.BitString, pszErrorTag);
+ break;
+ case RTASN1TYPE_OCTET_STRING:
+ rc = RTAsn1OctetString_DecodeAsn1(pCursor, 0, &pDynType->u.OctetString, pszErrorTag);
+ break;
+ case RTASN1TYPE_NULL:
+ rc = RTAsn1Null_DecodeAsn1(pCursor, 0, &pDynType->u.Asn1Null, pszErrorTag);
+ break;
+ case RTASN1TYPE_TIME:
+ rc = RTAsn1Time_DecodeAsn1(pCursor, 0, &pDynType->u.Time, pszErrorTag);
+ break;
+ case RTASN1TYPE_STRING:
+ rc = RTAsn1String_DecodeAsn1(pCursor, 0, &pDynType->u.String, pszErrorTag);
+ break;
+ case RTASN1TYPE_CORE:
+ rc = RTAsn1Core_DecodeAsn1(pCursor, 0, &pDynType->u.Core, pszErrorTag);
+ break;
+ default:
+ AssertFailedReturn(VERR_INTERNAL_ERROR_4);
+ }
+ if (RT_SUCCESS(rc))
+ return rc;
+ }
+ RT_ZERO(*pDynType);
+ return rc;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 22:18:44 +0000