| 1 | /* $Id: pkcs7-file.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Crypto - PKCS\#7/CMS, File related APIs.
|
|---|
| 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/crypto/pkcs7.h>
|
|---|
| 43 |
|
|---|
| 44 | #include <iprt/assert.h>
|
|---|
| 45 | #include <iprt/err.h>
|
|---|
| 46 | #include <iprt/crypto/pem.h>
|
|---|
| 47 |
|
|---|
| 48 |
|
|---|
| 49 | /*********************************************************************************************************************************
|
|---|
| 50 | * Global Variables *
|
|---|
| 51 | *********************************************************************************************************************************/
|
|---|
| 52 | static RTCRPEMMARKERWORD const g_aWords_Cms[] = { { RT_STR_TUPLE("CMS") } };
|
|---|
| 53 | static RTCRPEMMARKERWORD const g_aWords_Pkcs7[] = { { RT_STR_TUPLE("PKCS7") } };
|
|---|
| 54 | /** X509 Certificate markers. */
|
|---|
| 55 | RT_DECL_DATA_CONST(RTCRPEMMARKER const) g_aRTCrPkcs7Markers[] =
|
|---|
| 56 | {
|
|---|
| 57 | { g_aWords_Cms, RT_ELEMENTS(g_aWords_Cms) },
|
|---|
| 58 | { g_aWords_Pkcs7, RT_ELEMENTS(g_aWords_Pkcs7) }
|
|---|
| 59 | };
|
|---|
| 60 | /** Number of entries in g_aRTCrPkcs7Markers. */
|
|---|
| 61 | RT_DECL_DATA_CONST(uint32_t const) g_cRTCrPkcs7Markers = RT_ELEMENTS(g_aRTCrPkcs7Markers);
|
|---|
| 62 |
|
|---|
| 63 |
|
|---|
| 64 | /** @name Flags for RTCrPkcs7ContentInfo_ReadFromBuffer
|
|---|
| 65 | * @{ */
|
|---|
| 66 | /** Only allow PEM certificates, not binary ones.
|
|---|
| 67 | * @sa RTCRPEMREADFILE_F_ONLY_PEM */
|
|---|
| 68 | #define RTCRPKCS7_READ_F_PEM_ONLY RT_BIT(1)
|
|---|
| 69 | /** @} */
|
|---|
| 70 |
|
|---|
| 71 |
|
|---|
| 72 | RTDECL(int) RTCrPkcs7_ReadFromBuffer(PRTCRPKCS7CONTENTINFO pContentInfo, const void *pvBuf, size_t cbBuf,
|
|---|
| 73 | uint32_t fFlags, PCRTASN1ALLOCATORVTABLE pAllocator,
|
|---|
| 74 | bool *pfCmsLabeled, PRTERRINFO pErrInfo, const char *pszErrorTag)
|
|---|
| 75 | {
|
|---|
| 76 | if (pfCmsLabeled)
|
|---|
| 77 | *pfCmsLabeled = false;
|
|---|
| 78 | AssertReturn(!(fFlags & ~RTCRX509CERT_READ_F_PEM_ONLY), VERR_INVALID_FLAGS);
|
|---|
| 79 |
|
|---|
| 80 | PCRTCRPEMSECTION pSectionHead;
|
|---|
| 81 | int rc = RTCrPemParseContent(pvBuf, cbBuf,
|
|---|
| 82 | fFlags & RTCRX509CERT_READ_F_PEM_ONLY ? RTCRPEMREADFILE_F_ONLY_PEM : 0,
|
|---|
| 83 | g_aRTCrPkcs7Markers, g_cRTCrPkcs7Markers,
|
|---|
| 84 | &pSectionHead, pErrInfo);
|
|---|
| 85 | if (RT_SUCCESS(rc))
|
|---|
| 86 | {
|
|---|
| 87 | if (pSectionHead)
|
|---|
| 88 | {
|
|---|
| 89 | if (pfCmsLabeled)
|
|---|
| 90 | *pfCmsLabeled = pSectionHead->pMarker == &g_aRTCrPkcs7Markers[0];
|
|---|
| 91 |
|
|---|
| 92 | RTASN1CURSORPRIMARY PrimaryCursor;
|
|---|
| 93 | RTAsn1CursorInitPrimary(&PrimaryCursor, pSectionHead->pbData, (uint32_t)RT_MIN(pSectionHead->cbData, UINT32_MAX),
|
|---|
| 94 | pErrInfo, pAllocator, RTASN1CURSOR_FLAGS_DER, pszErrorTag);
|
|---|
| 95 |
|
|---|
| 96 | RTCRPKCS7CONTENTINFO TmpContentInfo;
|
|---|
| 97 | rc = RTCrPkcs7ContentInfo_DecodeAsn1(&PrimaryCursor.Cursor, 0, &TmpContentInfo, "CI");
|
|---|
| 98 | if (RT_SUCCESS(rc))
|
|---|
| 99 | {
|
|---|
| 100 | rc = RTCrPkcs7ContentInfo_CheckSanity(&TmpContentInfo, 0, pErrInfo, "CI");
|
|---|
| 101 | if (RT_SUCCESS(rc))
|
|---|
| 102 | {
|
|---|
| 103 | rc = RTCrPkcs7ContentInfo_Clone(pContentInfo, &TmpContentInfo, pAllocator);
|
|---|
| 104 | if (RT_SUCCESS(rc))
|
|---|
| 105 | {
|
|---|
| 106 | if (pSectionHead->pNext || PrimaryCursor.Cursor.cbLeft)
|
|---|
| 107 | rc = VINF_ASN1_MORE_DATA;
|
|---|
| 108 | }
|
|---|
| 109 | }
|
|---|
| 110 | RTCrPkcs7ContentInfo_Delete(&TmpContentInfo);
|
|---|
| 111 | }
|
|---|
| 112 | RTCrPemFreeSections(pSectionHead);
|
|---|
| 113 | }
|
|---|
| 114 | else
|
|---|
| 115 | rc = rc != VINF_SUCCESS ? -rc : VERR_INTERNAL_ERROR_2;
|
|---|
| 116 | }
|
|---|
| 117 | return rc;
|
|---|
| 118 | }
|
|---|
| 119 |
|
|---|
