From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Runtime/common/asn1/asn1-ut-objid.cpp | 566 +++++++++++++++++++++++++ 1 file changed, 566 insertions(+) create mode 100644 src/VBox/Runtime/common/asn1/asn1-ut-objid.cpp (limited to 'src/VBox/Runtime/common/asn1/asn1-ut-objid.cpp') diff --git a/src/VBox/Runtime/common/asn1/asn1-ut-objid.cpp b/src/VBox/Runtime/common/asn1/asn1-ut-objid.cpp new file mode 100644 index 00000000..d1212437 --- /dev/null +++ b/src/VBox/Runtime/common/asn1/asn1-ut-objid.cpp @@ -0,0 +1,566 @@ +/* $Id: asn1-ut-objid.cpp $ */ +/** @file + * IPRT - ASN.1, OBJECT IDENTIFIER 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 . + * + * 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 + +#include +#include +#include +#include +#include +#include + +#include + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +static char const g_szDefault[] = "2.16.840.1.113894"; +static uint32_t const g_auDefault[] = { 2, 16, 840, 1, 113894 }; +static uint8_t const g_abDefault[] = +{ + 2*40 + 16, 0x80 | (840 >> 7), 840 & 0x7f, 1, 0x80 | (113894 >> 14), 0x80 | ((113894 >> 7) & 0x7f), 113894 & 0x7f +}; + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +DECLHIDDEN(int) rtAsn1ObjId_InternalFormatComponent(uint32_t uValue, char **ppszObjId, size_t *pcbObjId); /* asn1-ut-objid.cpp */ +/** @todo check if we really need this. */ + + + +/* + * ASN.1 OBJECT IDENTIFIER - Special Methods. + */ + +/** + * Encodes the ASN.1 byte sequence for a set of components. + * + * @returns IPRT status code. + * @param cComponents The number of components. Must be at least two. + * @param pauComponents The components array. + * @param pbEncoded The output buffer. + * @param pcbEncoded On input, this holds the size of the output buffer. + * On successful return it's the encoded size in bytes. + */ +static int rtAsn1ObjId_EncodeComponents(uint32_t cComponents, uint32_t const *pauComponents, + uint8_t *pbEncoded, uint32_t *pcbEncoded) +{ + uint8_t *pbCur = pbEncoded; + uint32_t cbLeft = *pcbEncoded; + + /* The first two componets are encoded together to save a byte, so the loop + organization is a little special. */ + AssertReturn(cComponents >= 2, VERR_ASN1_INTERNAL_ERROR_1); + AssertReturn(pauComponents[0] <= 2, VERR_ASN1_INTERNAL_ERROR_1); + AssertReturn(pauComponents[1] <= (pauComponents[0] < 2 ? 39 : UINT32_MAX - 80), VERR_ASN1_INTERNAL_ERROR_1); + uint32_t i = 1; + uint32_t uValue = pauComponents[0] * 40 + pauComponents[1]; + + for (;;) + { + if (uValue < 0x80) + { + if (RT_UNLIKELY(cbLeft < 1)) + return VERR_BUFFER_OVERFLOW; + cbLeft -= 1; + *pbCur++ = (uint8_t)uValue; + } + else if (uValue < 0x4000) + { + if (RT_UNLIKELY(cbLeft < 2)) + return VERR_BUFFER_OVERFLOW; + cbLeft -= 2; + pbCur[0] = (uValue >> 7) | 0x80; + pbCur[1] = uValue & 0x7f; + pbCur += 2; + } + else if (uValue < 0x200000) + { + if (RT_UNLIKELY(cbLeft < 3)) + return VERR_BUFFER_OVERFLOW; + cbLeft -= 3; + pbCur[0] = (uValue >> 14) | 0x80; + pbCur[1] = ((uValue >> 7) & 0x7f) | 0x80; + pbCur[2] = uValue & 0x7f; + pbCur += 3; + } + else if (uValue < 0x10000000) + { + if (RT_UNLIKELY(cbLeft < 4)) + return VERR_BUFFER_OVERFLOW; + cbLeft -= 4; + pbCur[0] = (uValue >> 21) | 0x80; + pbCur[1] = ((uValue >> 14) & 0x7f) | 0x80; + pbCur[2] = ((uValue >> 7) & 0x7f) | 0x80; + pbCur[3] = uValue & 0x7f; + pbCur += 4; + } + else + { + if (RT_UNLIKELY(cbLeft < 5)) + return VERR_BUFFER_OVERFLOW; + cbLeft -= 5; + pbCur[0] = (uValue >> 28) | 0x80; + pbCur[1] = ((uValue >> 21) & 0x7f) | 0x80; + pbCur[2] = ((uValue >> 14) & 0x7f) | 0x80; + pbCur[3] = ((uValue >> 7) & 0x7f) | 0x80; + pbCur[4] = uValue & 0x7f; + pbCur += 5; + } + + /* Advance / return. */ + i++; + if (i >= cComponents) + { + *pcbEncoded = (uint32_t)(pbCur - pbEncoded); + return VINF_SUCCESS; + } + uValue = pauComponents[i]; + } +} + + +RTDECL(int) RTAsn1ObjId_InitFromString(PRTASN1OBJID pThis, const char *pszObjId, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + RT_ZERO(*pThis); + + /* + * Check the string, counting the number of components and checking their validity. + */ + size_t cbObjId = strlen(pszObjId) + 1; + AssertReturn(cbObjId < sizeof(pThis->szObjId), VERR_ASN1_OBJID_TOO_LONG_STRING_FORM); + + const char *psz = pszObjId; + + /* Special checking of the first component. It has only three valid values: 0,1,2. */ + char ch = *psz++; + if (RT_UNLIKELY(ch < '0' || ch > '2')) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + char const chFirst = ch; + ch = *psz++; + if (RT_UNLIKELY(ch != '.')) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + + /* The 2nd component. It the first is 0 or 1, it has a max of 39. */ + uint32_t cComponents = 1; + if (chFirst < '2') + { + ch = *psz++; + if (*psz == '.') + { + if (RT_UNLIKELY(!RT_C_IS_DIGIT(ch))) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + } + else + { + if (RT_UNLIKELY(ch < '0' || ch > '3')) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + ch = *psz++; + if (RT_UNLIKELY(!RT_C_IS_DIGIT(ch))) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + if (*psz != '.') + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + } + cComponents++; + } + else + psz--; + + /* Subsequent components have max values of UINT32_MAX - 80. */ + while ((ch = *psz++) != '\0') + { + if (RT_UNLIKELY(ch != '.')) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + const char *pszStart = psz; + + /* Special treatment of the first digit. Need to make sure it isn't an + unnecessary leading 0. */ + ch = *psz++; + if (RT_UNLIKELY(!RT_C_IS_DIGIT(ch))) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + if (RT_UNLIKELY(ch == '0' && RT_C_IS_DIGIT(*psz))) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + + /* The rest of the digits. */ + while ((ch = *psz) != '.' && ch != '\0') + { + if (RT_UNLIKELY(!RT_C_IS_DIGIT(ch))) + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + psz++; + } + + /* Check the value range. */ + if (RT_UNLIKELY(psz - pszStart >= 9)) + if ( psz - pszStart > 9 + || strncmp(pszStart, "4294967216", 9) >= 0) /* 2^32 - 80 */ + return VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + + cComponents++; + } + + if (RT_UNLIKELY(cComponents >= 128)) + return VERR_ASN1_OBJID_TOO_MANY_COMPONENTS; + pThis->cComponents = (uint8_t)cComponents; + + /* + * Find space for the component array, either at the unused end of szObjId + * or on the heap. + */ + int rc; + RTAsn1MemInitAllocation(&pThis->Allocation, pAllocator); +#if 0 /** @todo breaks with arrays of ObjIds or structs containing them. They get resized and repositioned in memory, thus invalidating the pointer. Add recall-pointers callback, or just waste memory? Or maybe make all arrays pointer-arrays? */ + size_t cbLeft = sizeof(pThis->szObjId) - cbObjId; + if (cbLeft >= cComponents * sizeof(uint32_t)) + { + pThis->pauComponents = (uint32_t *)&pThis->szObjId[sizeof(pThis->szObjId) - cComponents * sizeof(uint32_t)]; + cbLeft -= cComponents * sizeof(uint32_t); + rc = VINF_SUCCESS; + } + else +#endif + rc = RTAsn1MemAllocZ(&pThis->Allocation, (void **)&pThis->pauComponents, cComponents * sizeof(uint32_t)); + if (RT_SUCCESS(rc)) + { + /* + * Fill the elements array. + */ + uint32_t *pauComponents = (uint32_t *)pThis->pauComponents; + rc = VINF_SUCCESS; + psz = pszObjId; + for (uint32_t i = 0; i < cComponents; i++) + { + uint32_t uValue = 0; + rc = RTStrToUInt32Ex(psz, (char **)&psz, 10, &uValue); + if (rc == VWRN_TRAILING_CHARS) + { + pauComponents[i] = uValue; + AssertBreakStmt(*psz == '.', rc = VERR_TRAILING_CHARS); + psz++; + } + else if (rc == VINF_SUCCESS) + { + pauComponents[i] = uValue; + Assert(*psz == '\0'); + } + else if (RT_FAILURE(rc)) + break; + else + { + rc = -rc; + break; + } + } + if (rc == VINF_SUCCESS && *psz == '\0') + { + /* + * Initialize the core structure before we start on the encoded bytes. + */ + RTAsn1Core_InitEx(&pThis->Asn1Core, + ASN1_TAG_OID, + ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE, + &g_RTAsn1ObjId_Vtable, + RTASN1CORE_F_PRESENT | RTASN1CORE_F_PRIMITE_TAG_STRUCT); + + /* + * Encode the value into the string buffer. This will NOT overflow + * because the string representation is much less efficient than the + * binary ASN.1 representation (base-10 + separators vs. base-128). + */ + pThis->Asn1Core.cb = (uint32_t)cbObjId; + rc = rtAsn1ObjId_EncodeComponents(cComponents, pThis->pauComponents, + (uint8_t *)&pThis->szObjId[0], &pThis->Asn1Core.cb); + if (RT_SUCCESS(rc)) + { + /* + * Now, find a place for the encoded bytes. There might be + * enough room left in the szObjId for it if we're lucky. + */ +#if 0 /** @todo breaks with arrays of ObjIds or structs containing them. They get resized and repositioned in memory, thus invalidating the pointer. Add recall-pointers callback, or just waste memory? Or maybe make all arrays pointer-arrays? */ + if (pThis->Asn1Core.cb >= cbLeft) + pThis->Asn1Core.uData.pv = memmove(&pThis->szObjId[cbObjId], &pThis->szObjId[0], pThis->Asn1Core.cb); + else +#endif + rc = RTAsn1ContentDup(&pThis->Asn1Core, pThis->szObjId, pThis->Asn1Core.cb, pAllocator); + if (RT_SUCCESS(rc)) + { + /* + * Finally, copy the dotted string. + */ + memcpy(pThis->szObjId, pszObjId, cbObjId); + return VINF_SUCCESS; + } + } + else + { + AssertMsgFailed(("%Rrc\n", rc)); + rc = VERR_ASN1_INTERNAL_ERROR_3; + } + } + else + rc = VERR_ASN1_OBJID_INVALID_DOTTED_STRING; + } + RT_ZERO(*pThis); + return rc; +} + + +RTDECL(int) RTAsn1ObjId_SetFromString(PRTASN1OBJID pThis, const char *pszObjId, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + RTAsn1ObjId_Delete(pThis); + int rc = RTAsn1ObjId_InitFromString(pThis, pszObjId, pAllocator); + if (RT_FAILURE(rc)) + RTAsn1ObjId_Init(pThis, pAllocator); + return rc; +} + + +RTDECL(int) RTAsn1ObjId_CompareWithString(PCRTASN1OBJID pThis, const char *pszRight) +{ + return strcmp(pThis->szObjId, pszRight); +} + + +RTDECL(bool) RTAsn1ObjId_StartsWith(PCRTASN1OBJID pThis, const char *pszStartsWith) +{ + size_t cchStartsWith = strlen(pszStartsWith); + return !strncmp(pThis->szObjId, pszStartsWith, cchStartsWith) + && ( pszStartsWith[cchStartsWith] == '.' + || pszStartsWith[cchStartsWith] == '\0'); +} + + +RTDECL(uint8_t) RTAsn1ObjIdCountComponents(PCRTASN1OBJID pThis) +{ + return pThis->cComponents; +} + + +RTDECL(uint32_t) RTAsn1ObjIdGetComponentsAsUInt32(PCRTASN1OBJID pThis, uint8_t iComponent) +{ + if (iComponent < pThis->cComponents) + return pThis->pauComponents[iComponent]; + return UINT32_MAX; +} + + +RTDECL(uint32_t) RTAsn1ObjIdGetLastComponentsAsUInt32(PCRTASN1OBJID pThis) +{ + return pThis->pauComponents[pThis->cComponents - 1]; +} + + +/* + * ASN.1 OBJECT IDENTIFIER - Standard Methods. + */ + +RT_DECL_DATA_CONST(RTASN1COREVTABLE const) g_RTAsn1ObjId_Vtable = +{ + "RTAsn1ObjId", + sizeof(RTASN1OBJID), + ASN1_TAG_OID, + ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE, + 0, + (PFNRTASN1COREVTDTOR)RTAsn1ObjId_Delete, + NULL, + (PFNRTASN1COREVTCLONE)RTAsn1ObjId_Clone, + (PFNRTASN1COREVTCOMPARE)RTAsn1ObjId_Compare, + (PFNRTASN1COREVTCHECKSANITY)RTAsn1ObjId_CheckSanity, + NULL, + NULL +}; + + +RTDECL(int) RTAsn1ObjId_Init(PRTASN1OBJID pThis, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + RT_NOREF_PV(pAllocator); + RTAsn1Core_InitEx(&pThis->Asn1Core, + ASN1_TAG_OID, + ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE, + &g_RTAsn1ObjId_Vtable, + RTASN1CORE_F_PRESENT | RTASN1CORE_F_PRIMITE_TAG_STRUCT); + pThis->Asn1Core.cb = sizeof(g_abDefault); + pThis->Asn1Core.uData.pv = (void *)&g_abDefault[0]; + pThis->cComponents = RT_ELEMENTS(g_auDefault); + pThis->pauComponents = g_auDefault; + AssertCompile(sizeof(g_szDefault) <= sizeof(pThis->szObjId)); + memcpy(pThis->szObjId, g_szDefault, sizeof(g_szDefault)); + return VINF_SUCCESS; +} + + +RTDECL(int) RTAsn1ObjId_Clone(PRTASN1OBJID pThis, PCRTASN1OBJID pSrc, PCRTASN1ALLOCATORVTABLE pAllocator) +{ + AssertPtr(pSrc); AssertPtr(pThis); AssertPtr(pAllocator); + RT_ZERO(*pThis); + if (RTAsn1ObjId_IsPresent(pSrc)) + { + AssertReturn(pSrc->Asn1Core.pOps == &g_RTAsn1ObjId_Vtable, VERR_INTERNAL_ERROR_3); + + /* Copy the dotted string representation. */ + size_t cbObjId = strlen(pSrc->szObjId) + 1; + AssertReturn(cbObjId <= sizeof(pThis->szObjId), VERR_INTERNAL_ERROR_5); + memcpy(pThis->szObjId, pSrc->szObjId, cbObjId); + + /* Copy the integer component array. Try fit it in the unused space of + the dotted object string buffer. We place it at the end of the + buffer as that is simple alignment wise and avoid wasting bytes that + could be used to sequueze in the content bytes (see below). */ + int rc; + RTAsn1MemInitAllocation(&pThis->Allocation, pAllocator); + pThis->cComponents = pSrc->cComponents; +#if 0 /** @todo breaks with arrays of ObjIds or structs containing them. They get resized and repositioned in memory, thus invalidating the pointer. Add recall-pointers callback, or just waste memory? Or maybe make all arrays pointer-arrays? */ + size_t cbLeft = sizeof(pThis->szObjId); + if (pSrc->cComponents * sizeof(uint32_t) <= cbLeft) + { + pThis->pauComponents = (uint32_t *)&pThis->szObjId[sizeof(pThis->szObjId) - pSrc->cComponents * sizeof(uint32_t)]; + memcpy((uint32_t *)pThis->pauComponents, pSrc->pauComponents, pSrc->cComponents * sizeof(uint32_t)); + cbLeft -= pSrc->cComponents * sizeof(uint32_t); + rc = VINF_SUCCESS; + } + else +#endif + { + rc = RTAsn1MemDup(&pThis->Allocation, (void **)&pThis->pauComponents, pSrc->pauComponents, + pSrc->cComponents * sizeof(uint32_t)); + } + if (RT_SUCCESS(rc)) + { + /* See if we can fit the content value into the szObjId as well. + It will follow immediately after the string as the component + array is the end of the string buffer, when present. */ +#if 0 /** @todo breaks with arrays of ObjIds or structs containing them. They get resized and repositioned in memory, thus invalidating the pointer. Add recall-pointers callback, or just waste memory? Or maybe make all arrays pointer-arrays? */ + uint32_t cbContent = pSrc->Asn1Core.cb; + if (cbContent <= cbLeft) + { + rc = RTAsn1Core_CloneNoContent(&pThis->Asn1Core, &pSrc->Asn1Core); + if (RT_SUCCESS(rc)) + { + pThis->Asn1Core.uData.pv = memcpy(&pThis->szObjId[cbObjId], pSrc->Asn1Core.uData.pv, cbContent); + return VINF_SUCCESS; + } + } + else +#endif + { + rc = RTAsn1Core_CloneContent(&pThis->Asn1Core, &pSrc->Asn1Core, pAllocator); + if (RT_SUCCESS(rc)) + return VINF_SUCCESS; + } + } + + /* failed, clean up. */ + if (pThis->Allocation.cbAllocated) + RTAsn1MemFree(&pThis->Allocation, (uint32_t *)pThis->pauComponents); + RT_ZERO(*pThis); + return rc; + } + return VINF_SUCCESS; +} + + +RTDECL(void) RTAsn1ObjId_Delete(PRTASN1OBJID pThis) +{ + if ( pThis + && RTAsn1ObjId_IsPresent(pThis)) + { + Assert(pThis->Asn1Core.pOps == &g_RTAsn1ObjId_Vtable); + + if (pThis->Allocation.cbAllocated) + RTAsn1MemFree(&pThis->Allocation, (uint32_t *)pThis->pauComponents); + RTAsn1ContentFree(&pThis->Asn1Core); + RT_ZERO(*pThis); + } +} + + +RTDECL(int) RTAsn1ObjId_Enum(PRTASN1OBJID pThis, PFNRTASN1ENUMCALLBACK pfnCallback, uint32_t uDepth, void *pvUser) +{ + RT_NOREF_PV(pThis); RT_NOREF_PV(pfnCallback); RT_NOREF_PV(uDepth); RT_NOREF_PV(pvUser); + Assert(pThis && (!RTAsn1ObjId_IsPresent(pThis) || pThis->Asn1Core.pOps == &g_RTAsn1ObjId_Vtable)); + + /* No children to enumerate. */ + return VINF_SUCCESS; +} + + +RTDECL(int) RTAsn1ObjId_Compare(PCRTASN1OBJID pLeft, PCRTASN1OBJID pRight) +{ + if (RTAsn1ObjId_IsPresent(pLeft)) + { + if (RTAsn1ObjId_IsPresent(pRight)) + { + uint8_t cComponents = RT_MIN(pLeft->cComponents, pRight->cComponents); + for (uint32_t i = 0; i < cComponents; i++) + if (pLeft->pauComponents[i] != pRight->pauComponents[i]) + return pLeft->pauComponents[i] < pRight->pauComponents[i] ? -1 : 1; + + if (pLeft->cComponents == pRight->cComponents) + return 0; + return pLeft->cComponents < pRight->cComponents ? -1 : 1; + } + return 1; + } + return 0 - (int)RTAsn1ObjId_IsPresent(pRight); +} + + +RTDECL(int) RTAsn1ObjId_CheckSanity(PCRTASN1OBJID pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag) +{ + RT_NOREF_PV(fFlags); + if (RT_UNLIKELY(!RTAsn1ObjId_IsPresent(pThis))) + return RTErrInfoSetF(pErrInfo, VERR_ASN1_NOT_PRESENT, "%s: Missing (OBJID).", pszErrorTag); + return VINF_SUCCESS; +} + + +/* + * Generate code for the associated collection types. + */ +#define RTASN1TMPL_TEMPLATE_FILE "../common/asn1/asn1-ut-objid-template.h" +#include +#include +#include +#include + -- cgit v1.2.3