diff options
Diffstat (limited to 'src/VBox/Runtime/common/asn1/asn1-ut-core.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/asn1/asn1-ut-core.cpp | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/asn1/asn1-ut-core.cpp b/src/VBox/Runtime/common/asn1/asn1-ut-core.cpp new file mode 100644 index 00000000..b9ff385f --- /dev/null +++ b/src/VBox/Runtime/common/asn1/asn1-ut-core.cpp @@ -0,0 +1,331 @@ +/* $Id: asn1-ut-core.cpp $ */ +/** @file + * IPRT - ASN.1, Generic Core Type. + */ + +/* + * 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/alloca.h> +#include <iprt/bignum.h> +#include <iprt/ctype.h> +#include <iprt/err.h> +#include <iprt/string.h> +#include <iprt/uni.h> + +#include <iprt/formats/asn1.h> + + +/* + * ASN.1 Core - Special methods (for all applications of RTASN1CORE). + */ + +RTDECL(int) RTAsn1Core_SetTagAndFlags(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass) +{ + if (!(pAsn1Core->fFlags & RTASN1CORE_F_TAG_IMPLICIT)) + { + pAsn1Core->fRealClass = pAsn1Core->fClass; + pAsn1Core->uRealTag = pAsn1Core->uTag; + Assert(pAsn1Core->uRealTag == pAsn1Core->uTag); + pAsn1Core->fFlags |= RTASN1CORE_F_TAG_IMPLICIT; + } + pAsn1Core->uTag = uTag; + pAsn1Core->fClass = fClass; + return VINF_SUCCESS; +} + + +RTDECL(int) RTAsn1Core_ChangeTag(PRTASN1CORE pAsn1Core, uint32_t uTag) +{ + if (!(pAsn1Core->fFlags & RTASN1CORE_F_TAG_IMPLICIT)) + pAsn1Core->uTag = uTag; + pAsn1Core->uRealTag = uTag; + return VINF_SUCCESS; +} + + +RTDECL(void) RTAsn1Core_ResetImplict(PRTASN1CORE pThis) +{ + AssertPtr(pThis); + if (pThis->fFlags & RTASN1CORE_F_TAG_IMPLICIT) + { + pThis->fFlags &= ~RTASN1CORE_F_TAG_IMPLICIT; + pThis->uTag = pThis->uRealTag; + pThis->fClass = pThis->fRealClass; + } +} + + +RTDECL(int) RTAsn1Core_InitEx(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass, PCRTASN1COREVTABLE pOps, uint32_t fFlags) +{ + pAsn1Core->uTag = uTag; + pAsn1Core->fClass = fClass; + pAsn1Core->uRealTag = uTag; + pAsn1Core->fRealClass = fClass; + pAsn1Core->cbHdr = 0; + pAsn1Core->cb = 0; + pAsn1Core->fFlags = fFlags; + pAsn1Core->uData.pv = NULL; + pAsn1Core->pOps = pOps; + return VINF_SUCCESS; +} + + +RTDECL(int) RTAsn1Core_InitDefault(PRTASN1CORE pAsn1Core, uint32_t uTag, uint8_t fClass) +{ + return RTAsn1Core_InitEx(pAsn1Core, uTag, fClass, NULL, RTASN1CORE_F_DEFAULT); +} + + +static int rtAsn1Core_CloneEx(PRTASN1CORE pThis, PCRTASN1CORE pSrc, PCRTASN1ALLOCATORVTABLE pAllocator, bool fCopyContent) +{ + Assert(RTASN1CORE_IS_PRESENT(pSrc)); + pThis->uTag = pSrc->uTag; + pThis->fClass = pSrc->fClass; + pThis->uRealTag = pSrc->uRealTag; + pThis->fRealClass = pSrc->fRealClass; + pThis->cbHdr = pSrc->cbHdr; + pThis->fFlags = pSrc->fFlags & ~(RTASN1CORE_F_ALLOCATED_CONTENT | RTASN1CORE_F_DECODED_CONTENT); + pThis->pOps = pSrc->pOps; + pThis->cb = 0; + pThis->uData.pv = NULL; + if (pSrc->cb) + { + if (!fCopyContent) + pThis->cb = pSrc->cb; + else + { + int rc = RTAsn1ContentDup(pThis, pSrc->uData.pv, pSrc->cb, pAllocator); + if (RT_FAILURE(rc)) + { + RT_ZERO(*pThis); + return rc; + } + Assert(pThis->cb == pSrc->cb); + AssertPtr(pThis->uData.pv); + } + } + return VINF_SUCCESS; +} + + +RTDECL(int) RTAsn1Core_CloneContent(PRTASN1CORE pThis, PCRTASN1CORE pSrc, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + return rtAsn1Core_CloneEx(pThis, pSrc, pAllocator, true /*fCopyContent*/); +} + + +RTDECL(int) RTAsn1Core_CloneNoContent(PRTASN1CORE pThis, PCRTASN1CORE pSrc) +{ + return rtAsn1Core_CloneEx(pThis, pSrc, NULL, false /*fCopyContent*/); +} + + +RTDECL(int) RTAsn1Core_CompareEx(PCRTASN1CORE pLeft, PCRTASN1CORE pRight, bool fIgnoreTagAndClass) +{ + int iDiff; + if (RTASN1CORE_IS_PRESENT(pLeft)) + { + if (RTASN1CORE_IS_PRESENT(pRight)) + { + iDiff = memcmp(pLeft->uData.pv, pRight->uData.pv, RT_MIN(pLeft->cb, pRight->cb)); + if (!iDiff) + { + if (pLeft->cb != pRight->cb) + iDiff = pLeft->cb < pRight->cb ? -1 : 1; + else if (!fIgnoreTagAndClass) + { + if (pLeft->uTag != pRight->uTag) + iDiff = pLeft->uTag < pRight->uTag ? -1 : 1; + else if (pLeft->fClass != pRight->fClass) + iDiff = pLeft->fClass < pRight->fClass ? -1 : 1; + } + } + else + iDiff = iDiff < 0 ? -1 : 1; + } + else + iDiff = -1; + } + else + iDiff = 0 - (int)RTASN1CORE_IS_PRESENT(pRight); + return iDiff; +} + + +/** + * @interface_method_impl{RTASN1COREVTABLE,pfnEncodePrep, + * This is for not dropping the unparsed content of a 'core' structure when + * re-encoding it. } + */ +static DECLCALLBACK(int) rtAsn1Core_EncodePrep(PRTASN1CORE pThisCore, uint32_t fFlags, PRTERRINFO pErrInfo) +{ + /* We don't update anything here. */ + RT_NOREF(pThisCore, fFlags, pErrInfo); + return VINF_SUCCESS; +} + + +/** + * @interface_method_impl{RTASN1COREVTABLE,pfnEncodeWrite, + * This is for not dropping the unparsed content of a 'core' structure when + * re-encoding it. } + */ +static DECLCALLBACK(int) rtAsn1Core_EncodeWrite(PRTASN1CORE pThisCore, uint32_t fFlags, PFNRTASN1ENCODEWRITER pfnWriter, + void *pvUser, PRTERRINFO pErrInfo) +{ + int rc = RTAsn1EncodeWriteHeader(pThisCore, fFlags, pfnWriter, pvUser, pErrInfo); + if ( RT_SUCCESS(rc) + && rc != VINF_ASN1_NOT_ENCODED) + { + Assert(!RTASN1CORE_IS_DUMMY(pThisCore)); + if (pThisCore->cb) + { + AssertPtrReturn(pThisCore->uData.pv, + RTErrInfoSetF(pErrInfo, VERR_ASN1_INVALID_DATA_POINTER, + "Invalid uData pointer %p for lone ASN.1 core with %#x bytes of content", + pThisCore->uData.pv, pThisCore->cb)); + rc = pfnWriter(pThisCore->uData.pv, pThisCore->cb, pvUser, pErrInfo); + } + } + return rc; +} + + + +/* + * ASN.1 Core - Standard Methods. + * + * @note Children of the ASN.1 Core doesn't normally call these, they are for + * when RTASN1CORE is used as a member type. + */ + +RT_DECL_DATA_CONST(RTASN1COREVTABLE const) g_RTAsn1Core_Vtable = +{ + "RTAsn1Core", + sizeof(RTASN1CORE), + UINT8_MAX, + UINT8_MAX, + 0, + RTAsn1Core_Delete, + RTAsn1Core_Enum, + (PFNRTASN1COREVTCLONE)RTAsn1Core_Clone, + (PFNRTASN1COREVTCOMPARE)RTAsn1Core_Compare, + (PFNRTASN1COREVTCHECKSANITY)RTAsn1Core_CheckSanity, + rtAsn1Core_EncodePrep, + rtAsn1Core_EncodeWrite +}; + + +RTDECL(int) RTAsn1Core_Init(PRTASN1CORE pThis, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + RT_NOREF_PV(pAllocator); + return RTAsn1Core_InitEx(pThis, 0, ASN1_TAGCLASS_CONTEXT | ASN1_TAGFLAG_PRIMITIVE, + &g_RTAsn1Core_Vtable, RTASN1CORE_F_PRESENT); +} + + +RTDECL(int) RTAsn1Core_Clone(PRTASN1CORE pThis, PCRTASN1CORE pSrc, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + int rc; + RT_ZERO(*pThis); + if (RTASN1CORE_IS_PRESENT(pSrc)) + { + Assert(pSrc->pOps == &g_RTAsn1Core_Vtable); + + rc = RTAsn1Core_CloneContent(pThis, pSrc, pAllocator); + } + else + rc = VINF_SUCCESS; + return rc; +} + + +RTDECL(void) RTAsn1Core_Delete(PRTASN1CORE pThis) +{ + if (pThis && RTASN1CORE_IS_PRESENT(pThis)) + { + Assert(pThis->pOps == &g_RTAsn1Core_Vtable); + + RTAsn1ContentFree(pThis); + RT_ZERO(*pThis); + } +} + + +RTDECL(int) RTAsn1Core_Enum(PRTASN1CORE pThis, PFNRTASN1ENUMCALLBACK pfnCallback, uint32_t uDepth, void *pvUser) +{ + /* We have no children to enumerate. */ + Assert(pThis && (!RTASN1CORE_IS_PRESENT(pThis) || pThis->pOps == &g_RTAsn1Core_Vtable)); + NOREF(pThis); + NOREF(pfnCallback); + NOREF(uDepth); + NOREF(pvUser); + return VINF_SUCCESS; +} + + +RTDECL(int) RTAsn1Core_Compare(PCRTASN1CORE pLeft, PCRTASN1CORE pRight) +{ + Assert(pLeft && (!RTASN1CORE_IS_PRESENT(pLeft) || pLeft->pOps == &g_RTAsn1Core_Vtable)); + Assert(pRight && (!RTASN1CORE_IS_PRESENT(pRight) || pRight->pOps == &g_RTAsn1Core_Vtable)); + + return RTAsn1Core_CompareEx(pLeft, pRight, false /*fIgnoreTagAndClass*/); +} + + +RTDECL(int) RTAsn1Core_CheckSanity(PCRTASN1CORE pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + + /* We can only check that it's present. */ + if (!RTAsn1Core_IsPresent(pThis)) + return RTErrInfoSetF(pErrInfo, VERR_ASN1_NOT_PRESENT, "%s: Missing (RTASN1CORE).", pszErrorTag); + return VINF_SUCCESS; +} + + +/* + * Generate code for the associated collection types. + */ +#define RTASN1TMPL_TEMPLATE_FILE "../common/asn1/asn1-ut-core-template.h" +#include <iprt/asn1-generator-internal-header.h> +#include <iprt/asn1-generator-core.h> +#include <iprt/asn1-generator-init.h> +#include <iprt/asn1-generator-sanity.h> + |