VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/asn1/asn1-ut-dyntype-decode.cpp

Last change on this file was 98103, checked in by vboxsync, 16 months ago

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    /branches/VBox-3.0/src/VBox/Runtime/common/asn1/asn1-basics.cpp58652,​70973
    /branches/VBox-3.2/src/VBox/Runtime/common/asn1/asn1-basics.cpp66309,​66318
    /branches/VBox-4.0/src/VBox/Runtime/common/asn1/asn1-basics.cpp70873
    /branches/VBox-4.1/src/VBox/Runtime/common/asn1/asn1-basics.cpp74233,​78414,​78691,​81841,​82127,​85941,​85944-85947,​85949-85950,​85953,​86701,​86728,​87009
    /branches/VBox-4.2/src/VBox/Runtime/common/asn1/asn1-basics.cpp86229-86230,​86234,​86529,​91503-91504,​91506-91508,​91510,​91514-91515,​91521
    /branches/VBox-4.3/src/VBox/Runtime/common/asn1/asn1-basics.cpp91223
    /branches/VBox-4.3/trunk/src/VBox/Runtime/common/asn1/asn1-basics.cpp91223
    /branches/andy/draganddrop/src/VBox/Runtime/common/asn1/asn1-basics.cpp90781-91268
    /branches/andy/guestctrl20/src/VBox/Runtime/common/asn1/asn1-basics.cpp78916,​78930
    /branches/dsen/gui/src/VBox/Runtime/common/asn1/asn1-basics.cpp79076-79078,​79089,​79109-79110,​79112-79113,​79127-79130,​79134,​79141,​79151,​79155,​79157-79159,​79193,​79197
    /branches/dsen/gui2/src/VBox/Runtime/common/asn1/asn1-basics.cpp79224,​79228,​79233,​79235,​79258,​79262-79263,​79273,​79341,​79345,​79354,​79357,​79387-79388,​79559-79569,​79572-79573,​79578,​79581-79582,​79590-79591,​79598-79599,​79602-79603,​79605-79606,​79632,​79635,​79637,​79644
    /branches/dsen/gui3/src/VBox/Runtime/common/asn1/asn1-basics.cpp79645-79692
File size: 10.7 KB
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1/* $Id: asn1-ut-dyntype-decode.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - ASN.1, Dynamic Type, Decoding.
4 */
5
6/*
7 * Copyright (C) 2006-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include "internal/iprt.h"
42#include <iprt/asn1.h>
43
44#include <iprt/err.h>
45#include <iprt/string.h>
46
47#include <iprt/formats/asn1.h>
48
49
50
51RTDECL(int) RTAsn1DynType_DecodeAsn1(PRTASN1CURSOR pCursor, uint32_t fFlags, PRTASN1DYNTYPE pDynType, const char *pszErrorTag)
52{
53 RT_ZERO(*pDynType);
54
55 Assert(!(fFlags & RTASN1CURSOR_GET_F_IMPLICIT)); RT_NOREF_PV(fFlags);
56 uint32_t cbSavedLeft = pCursor->cbLeft;
57 uint8_t const *pbSavedCur = pCursor->pbCur;
58
59 int rc = RTAsn1CursorReadHdr(pCursor, &pDynType->u.Core, pszErrorTag);
60 if (RT_SUCCESS(rc))
61 {
62 pDynType->enmType = RTASN1TYPE_CORE;
63
64 if (pDynType->u.Core.fClass == (ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE))
65 {
66 switch (pDynType->u.Core.uTag)
67 {
68 case ASN1_TAG_BOOLEAN:
69 pDynType->enmType = RTASN1TYPE_BOOLEAN;
70 break;
71 case ASN1_TAG_INTEGER:
72 pDynType->enmType = RTASN1TYPE_INTEGER;
73 break;
74 //case ASN1_TAG_ENUMERATED:
75 // pDynType->enmType = RTASN1TYPE_ENUMERATED;
76 // break;
77 //case ASN1_TAG_REAL:
78 // pDynType->enmType = RTASN1TYPE_REAL;
79 // break;
80 case ASN1_TAG_BIT_STRING:
81 pDynType->enmType = RTASN1TYPE_BIT_STRING;
82 break;
83 case ASN1_TAG_OCTET_STRING:
84 pDynType->enmType = RTASN1TYPE_OCTET_STRING;
85 break;
86 case ASN1_TAG_NULL:
87 pDynType->enmType = RTASN1TYPE_NULL;
88 break;
89 case ASN1_TAG_SEQUENCE:
90 RT_ZERO(*pDynType);
91 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 SEQUENCE shall be constructed.");
92 case ASN1_TAG_SET:
93 RT_ZERO(*pDynType);
94 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 SET shall be constructed.");
95 case ASN1_TAG_OID:
96 pDynType->enmType = RTASN1TYPE_OBJID;
97 break;
98 //case ASN1_TAG_RELATIVE_OID:
99 // pDynType->enmType = RTASN1TYPE_RELATIVE_OBJID;
100 // break;
101 case ASN1_TAG_UTC_TIME:
102 case ASN1_TAG_GENERALIZED_TIME:
103 pDynType->enmType = RTASN1TYPE_TIME;
104 break;
105 case ASN1_TAG_UTF8_STRING:
106 case ASN1_TAG_NUMERIC_STRING:
107 case ASN1_TAG_PRINTABLE_STRING:
108 case ASN1_TAG_T61_STRING:
109 case ASN1_TAG_VIDEOTEX_STRING:
110 case ASN1_TAG_IA5_STRING:
111 case ASN1_TAG_GRAPHIC_STRING:
112 case ASN1_TAG_VISIBLE_STRING:
113 case ASN1_TAG_UNIVERSAL_STRING:
114 case ASN1_TAG_GENERAL_STRING:
115 case ASN1_TAG_BMP_STRING:
116 pDynType->enmType = RTASN1TYPE_STRING;
117 break;
118 //case ASN1_TAG_CHARACTER_STRING:
119 // pDynType->enmType = RTASN1TYPE_CHARACTER_STRING;
120 // break;
121
122 default:
123 RT_ZERO(*pDynType);
124 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_TAG_NOT_IMPL,
125 "Primitive tag %u (%#x) not implemented.",
126 pDynType->u.Core.uTag, pDynType->u.Core.uTag);
127 }
128 }
129 else if (pDynType->u.Core.fClass == (ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_CONSTRUCTED))
130 switch (pDynType->u.Core.uTag)
131 {
132 case ASN1_TAG_BOOLEAN:
133 RT_ZERO(*pDynType);
134 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 BOOLEAN shall be primitive.");
135 case ASN1_TAG_INTEGER:
136 RT_ZERO(*pDynType);
137 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 BOOLEAN shall be primitive.");
138 case ASN1_TAG_ENUMERATED:
139 RT_ZERO(*pDynType);
140 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 ENUMERATED shall be primitive.");
141 case ASN1_TAG_REAL:
142 RT_ZERO(*pDynType);
143 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 REAL shall be primitive.");
144 case ASN1_TAG_BIT_STRING:
145 pDynType->enmType = RTASN1TYPE_BIT_STRING;
146 break;
147 case ASN1_TAG_OCTET_STRING:
148 pDynType->enmType = RTASN1TYPE_OCTET_STRING;
149 break;
150 case ASN1_TAG_NULL:
151 RT_ZERO(*pDynType);
152 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 NULL shall be primitive.");
153 case ASN1_TAG_SEQUENCE:
154#if 0
155 pDynType->enmType = RTASN1TYPE_SEQUENCE_CORE;
156 pDynType->u.SeqCore.Asn1Core.fFlags |= RTASN1CORE_F_PRIMITE_TAG_STRUCT;
157 RTAsn1CursorSkip(pCursor, pDynType->u.Core.cb);
158 return VINF_SUCCESS;
159#else
160 pDynType->enmType = RTASN1TYPE_CORE;
161#endif
162 break;
163 case ASN1_TAG_SET:
164#if 0
165 pDynType->enmType = RTASN1TYPE_SET_CORE;
166 pDynType->u.SeqCore.Asn1Core.fFlags |= RTASN1CORE_F_PRIMITE_TAG_STRUCT;
167 RTAsn1CursorSkip(pCursor, pDynType->u.Core.cb);
168 return VINF_SUCCESS;
169#else
170 pDynType->enmType = RTASN1TYPE_CORE;
171#endif
172 break;
173 case ASN1_TAG_OID:
174 RT_ZERO(*pDynType);
175 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 OBJECT ID shall be primitive.");
176 case ASN1_TAG_RELATIVE_OID:
177 RT_ZERO(*pDynType);
178 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_BAD_TAG, "ASN.1 RELATIVE OID shall be primitive.");
179
180 case ASN1_TAG_UTF8_STRING:
181 case ASN1_TAG_NUMERIC_STRING:
182 case ASN1_TAG_PRINTABLE_STRING:
183 case ASN1_TAG_T61_STRING:
184 case ASN1_TAG_VIDEOTEX_STRING:
185 case ASN1_TAG_IA5_STRING:
186 case ASN1_TAG_GRAPHIC_STRING:
187 case ASN1_TAG_VISIBLE_STRING:
188 case ASN1_TAG_UNIVERSAL_STRING:
189 case ASN1_TAG_GENERAL_STRING:
190 case ASN1_TAG_BMP_STRING:
191 pDynType->enmType = RTASN1TYPE_STRING;
192 break;
193 //case ASN1_TAG_CHARACTER_STRING:
194 // pDynType->enmType = RTASN1TYPE_CHARACTER_STRING;
195 // break;
196
197 default:
198 RT_ZERO(*pDynType);
199 return RTAsn1CursorSetInfo(pCursor, VERR_ASN1_DYNTYPE_TAG_NOT_IMPL,
200 "Constructed tag %u (%#x) not implemented.",
201 pDynType->u.Core.uTag, pDynType->u.Core.uTag);
202 }
203 else
204 Assert(pDynType->enmType == RTASN1TYPE_CORE);
205
206 /*
207 * Restore the cursor and redo with specific type.
208 */
209 pCursor->pbCur = pbSavedCur;
210 pCursor->cbLeft = cbSavedLeft;
211
212 switch (pDynType->enmType)
213 {
214 case RTASN1TYPE_INTEGER:
215 rc = RTAsn1Integer_DecodeAsn1(pCursor, 0, &pDynType->u.Integer, pszErrorTag);
216 break;
217 case RTASN1TYPE_BOOLEAN:
218 rc = RTAsn1Boolean_DecodeAsn1(pCursor, 0, &pDynType->u.Boolean, pszErrorTag);
219 break;
220 case RTASN1TYPE_OBJID:
221 rc = RTAsn1ObjId_DecodeAsn1(pCursor, 0, &pDynType->u.ObjId, pszErrorTag);
222 break;
223 case RTASN1TYPE_BIT_STRING:
224 rc = RTAsn1BitString_DecodeAsn1(pCursor, 0, &pDynType->u.BitString, pszErrorTag);
225 break;
226 case RTASN1TYPE_OCTET_STRING:
227 rc = RTAsn1OctetString_DecodeAsn1(pCursor, 0, &pDynType->u.OctetString, pszErrorTag);
228 break;
229 case RTASN1TYPE_NULL:
230 rc = RTAsn1Null_DecodeAsn1(pCursor, 0, &pDynType->u.Asn1Null, pszErrorTag);
231 break;
232 case RTASN1TYPE_TIME:
233 rc = RTAsn1Time_DecodeAsn1(pCursor, 0, &pDynType->u.Time, pszErrorTag);
234 break;
235 case RTASN1TYPE_STRING:
236 rc = RTAsn1String_DecodeAsn1(pCursor, 0, &pDynType->u.String, pszErrorTag);
237 break;
238 case RTASN1TYPE_CORE:
239 rc = RTAsn1Core_DecodeAsn1(pCursor, 0, &pDynType->u.Core, pszErrorTag);
240 break;
241 default:
242 AssertFailedReturn(VERR_INTERNAL_ERROR_4);
243 }
244 if (RT_SUCCESS(rc))
245 return rc;
246 }
247 RT_ZERO(*pDynType);
248 return rc;
249}
250
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