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/* $Id: asn1-ut-time.cpp $ */
/** @file
* IPRT - ASN.1, UTC TIME and GENERALIZED TIME Types.
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include <iprt/asn1.h>
#include <iprt/ctype.h>
#include <iprt/err.h>
#include <iprt/string.h>
#include <iprt/uni.h>
#include <iprt/formats/asn1.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** The UTC TIME encoding of the IPRT epoch time. */
static const char g_szEpochUtc[] = "700101000000Z";
/** The GENERALIZED TIME encoding of the IPRT epoch time. */
static const char g_szEpochGeneralized[] = "19700101000000Z";
/*
* ASN.1 TIME - Special Methods.
*/
RTDECL(int) RTAsn1Time_InitEx(PRTASN1TIME pThis, uint32_t uTag, PCRTASN1ALLOCATORVTABLE pAllocator)
{
RT_NOREF_PV(pAllocator);
AssertReturn(uTag == ASN1_TAG_UTC_TIME || uTag == ASN1_TAG_GENERALIZED_TIME, VERR_INVALID_PARAMETER);
RTAsn1Core_InitEx(&pThis->Asn1Core,
uTag,
ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
&g_RTAsn1Time_Vtable,
RTASN1CORE_F_PRESENT | RTASN1CORE_F_PRIMITE_TAG_STRUCT);
if (uTag == ASN1_TAG_UTC_TIME)
{
pThis->Asn1Core.cb = sizeof(g_szEpochUtc) - 1;
pThis->Asn1Core.uData.pv = &g_szEpochUtc[0];
}
else
{
pThis->Asn1Core.cb = sizeof(g_szEpochGeneralized) - 1;
pThis->Asn1Core.uData.pv = &g_szEpochGeneralized[0];
}
return VINF_SUCCESS;
}
RTDECL(int) RTAsn1Time_CompareWithTimeSpec(PCRTASN1TIME pLeft, PCRTTIMESPEC pTsRight)
{
int iDiff = RTAsn1Time_IsPresent(pLeft) ? 0 : -1;
if (!iDiff)
{
RTTIME RightTime;
iDiff = RTTimeCompare(&pLeft->Time, RTTimeExplode(&RightTime, pTsRight));
}
return iDiff;
}
/*
* ASN.1 TIME - Standard Methods.
*/
RT_DECL_DATA_CONST(RTASN1COREVTABLE const) g_RTAsn1Time_Vtable =
{
"RTAsn1Time",
sizeof(RTASN1TIME),
UINT8_MAX,
ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
0,
(PFNRTASN1COREVTDTOR)RTAsn1Time_Delete,
NULL,
(PFNRTASN1COREVTCLONE)RTAsn1Time_Clone,
(PFNRTASN1COREVTCOMPARE)RTAsn1Time_Compare,
(PFNRTASN1COREVTCHECKSANITY)RTAsn1Time_CheckSanity,
NULL,
NULL
};
RTDECL(int) RTAsn1Time_Init(PRTASN1TIME pThis, PCRTASN1ALLOCATORVTABLE pAllocator)
{
/* Using UTC TIME since epoch would be encoded using UTC TIME following
X.509 Validity / Whatever time tag guidelines. */
return RTAsn1Time_InitEx(pThis, ASN1_TAG_UTC_TIME, pAllocator);
}
RTDECL(int) RTAsn1Time_Clone(PRTASN1TIME pThis, PCRTASN1TIME pSrc, PCRTASN1ALLOCATORVTABLE pAllocator)
{
AssertPtr(pSrc); AssertPtr(pThis); AssertPtr(pAllocator);
RT_ZERO(*pThis);
if (RTAsn1Time_IsPresent(pSrc))
{
AssertReturn(pSrc->Asn1Core.pOps == &g_RTAsn1Time_Vtable, VERR_INTERNAL_ERROR_3);
int rc = RTAsn1Core_CloneContent(&pThis->Asn1Core, &pSrc->Asn1Core, pAllocator);
if (RT_SUCCESS(rc))
{
pThis->Time = pSrc->Time;
return VINF_SUCCESS;
}
return rc;
}
return VINF_SUCCESS;
}
RTDECL(void) RTAsn1Time_Delete(PRTASN1TIME pThis)
{
if ( pThis
&& RTAsn1Time_IsPresent(pThis))
{
Assert(pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable);
RTAsn1ContentFree(&pThis->Asn1Core);
RT_ZERO(*pThis);
}
}
RTDECL(int) RTAsn1Time_Enum(PRTASN1TIME 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 && (!RTAsn1Time_IsPresent(pThis) || pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable));
/* No children to enumerate. */
return VINF_SUCCESS;
}
RTDECL(int) RTAsn1Time_Compare(PCRTASN1TIME pLeft, PCRTASN1TIME pRight)
{
Assert(pLeft && (!RTAsn1Time_IsPresent(pLeft) || pLeft->Asn1Core.pOps == &g_RTAsn1Time_Vtable));
Assert(pRight && (!RTAsn1Time_IsPresent(pRight) || pRight->Asn1Core.pOps == &g_RTAsn1Time_Vtable));
int iDiff;
if (RTAsn1Time_IsPresent(pLeft))
{
if (RTAsn1Time_IsPresent(pRight))
iDiff = RTTimeCompare(&pLeft->Time, &pRight->Time);
else
iDiff = -1;
}
else
iDiff = 0 - (int)RTAsn1Time_IsPresent(pRight);
return iDiff;
}
RTDECL(int) RTAsn1Time_CheckSanity(PCRTASN1TIME pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag)
{
RT_NOREF_PV(fFlags);
if (RT_UNLIKELY(!RTAsn1Time_IsPresent(pThis)))
return RTErrInfoSetF(pErrInfo, VERR_ASN1_NOT_PRESENT, "%s: Missing (TIME).", pszErrorTag);
return VINF_SUCCESS;
}
/*
* Generate code for the tag specific methods.
* Note! This is very similar to what we're doing in asn1-ut-string.cpp.
*/
#define RTASN1TIME_IMPL(a_uTag, a_szTag, a_Api) \
\
RTDECL(int) RT_CONCAT(a_Api,_Init)(PRTASN1TIME pThis, PCRTASN1ALLOCATORVTABLE pAllocator) \
{ \
return RTAsn1Time_InitEx(pThis, a_uTag, pAllocator); \
} \
\
RTDECL(int) RT_CONCAT(a_Api,_Clone)(PRTASN1TIME pThis, PCRTASN1TIME pSrc, PCRTASN1ALLOCATORVTABLE pAllocator) \
{ \
AssertReturn(RTASN1CORE_GET_TAG(&pSrc->Asn1Core) == a_uTag || !RTAsn1Time_IsPresent(pSrc), \
VERR_ASN1_TIME_TAG_MISMATCH); \
return RTAsn1Time_Clone(pThis, pSrc, pAllocator); \
} \
\
RTDECL(void) RT_CONCAT(a_Api,_Delete)(PRTASN1TIME pThis) \
{ \
Assert( !pThis \
|| !RTAsn1Time_IsPresent(pThis) \
|| ( pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable \
&& RTASN1CORE_GET_TAG(&pThis->Asn1Core) == a_uTag) ); \
RTAsn1Time_Delete(pThis); \
} \
\
RTDECL(int) RT_CONCAT(a_Api,_Enum)(PRTASN1TIME 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 \
&& ( !RTAsn1Time_IsPresent(pThis) \
|| ( pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable \
&& RTASN1CORE_GET_TAG(&pThis->Asn1Core) == a_uTag) ) ); \
/* No children to enumerate. */ \
return VINF_SUCCESS; \
} \
\
RTDECL(int) RT_CONCAT(a_Api,_Compare)(PCRTASN1TIME pLeft, PCRTASN1TIME pRight) \
{ \
int iDiff = RTAsn1Time_Compare(pLeft, pRight); \
if (!iDiff && RTAsn1Time_IsPresent(pLeft)) \
{ \
if (RTASN1CORE_GET_TAG(&pLeft->Asn1Core) == RTASN1CORE_GET_TAG(&pRight->Asn1Core)) \
{ \
if (RTASN1CORE_GET_TAG(&pLeft->Asn1Core) != a_uTag) \
iDiff = RTASN1CORE_GET_TAG(&pLeft->Asn1Core) < a_uTag ? -1 : 1; \
} \
else \
iDiff = RTASN1CORE_GET_TAG(&pLeft->Asn1Core) < RTASN1CORE_GET_TAG(&pRight->Asn1Core) ? -1 : 1; \
} \
return iDiff; \
} \
\
RTDECL(int) RT_CONCAT(a_Api,_CheckSanity)(PCRTASN1TIME pThis, uint32_t fFlags, \
PRTERRINFO pErrInfo, const char *pszErrorTag) \
{ \
if (RTASN1CORE_GET_TAG(&pThis->Asn1Core) != a_uTag && RTAsn1Time_IsPresent(pThis)) \
return RTErrInfoSetF(pErrInfo, VERR_ASN1_TIME_TAG_MISMATCH, "%s: uTag=%#x, expected %#x (%s)", \
pszErrorTag, RTASN1CORE_GET_TAG(&pThis->Asn1Core), a_uTag, a_szTag); \
return RTAsn1Time_CheckSanity(pThis, fFlags, pErrInfo, pszErrorTag); \
}
#include "asn1-ut-time-template2.h"
/*
* Generate code for the associated collection types.
*/
#define RTASN1TMPL_TEMPLATE_FILE "../common/asn1/asn1-ut-time-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>
|
