diff options
Diffstat (limited to 'src/VBox/Runtime/common/efi/efiguid.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/efi/efiguid.cpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/efi/efiguid.cpp b/src/VBox/Runtime/common/efi/efiguid.cpp new file mode 100644 index 00000000..98464187 --- /dev/null +++ b/src/VBox/Runtime/common/efi/efiguid.cpp @@ -0,0 +1,134 @@ +/* $Id: efiguid.cpp $ */ +/** @file + * IPRT - EFI GUID conversion helpers. + */ + +/* + * Copyright (C) 2021-2022 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 * +*********************************************************************************************************************************/ +#define LOG_GROUP RTLOGGROUP_DEFAULT +#include <iprt/efi.h> + +#include <iprt/cdefs.h> +#include <iprt/asm.h> +#include <iprt/string.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ + +RTDECL(PRTUUID) RTEfiGuidToUuid(PRTUUID pUuid, PCEFI_GUID pEfiGuid) +{ + pUuid->Gen.u32TimeLow = RT_LE2H_U32(pEfiGuid->u32Data1); + pUuid->Gen.u16TimeMid = RT_LE2H_U16(pEfiGuid->u16Data2); + pUuid->Gen.u16TimeHiAndVersion = RT_LE2H_U16(pEfiGuid->u16Data3); + pUuid->Gen.u8ClockSeqHiAndReserved = pEfiGuid->abData4[0]; + pUuid->Gen.u8ClockSeqLow = pEfiGuid->abData4[1]; + pUuid->Gen.au8Node[0] = pEfiGuid->abData4[2]; + pUuid->Gen.au8Node[1] = pEfiGuid->abData4[3]; + pUuid->Gen.au8Node[2] = pEfiGuid->abData4[4]; + pUuid->Gen.au8Node[3] = pEfiGuid->abData4[5]; + pUuid->Gen.au8Node[4] = pEfiGuid->abData4[6]; + pUuid->Gen.au8Node[5] = pEfiGuid->abData4[7]; + return pUuid; +} + + +RTDECL(PEFI_GUID) RTEfiGuidFromUuid(PEFI_GUID pEfiGuid, PCRTUUID pUuid) +{ + pEfiGuid->u32Data1 = RT_H2LE_U32(pUuid->Gen.u32TimeLow); + pEfiGuid->u16Data2 = RT_H2LE_U16(pUuid->Gen.u16TimeMid); + pEfiGuid->u16Data3 = RT_H2LE_U16(pUuid->Gen.u16TimeHiAndVersion); + pEfiGuid->abData4[0] = pUuid->Gen.u8ClockSeqHiAndReserved; + pEfiGuid->abData4[1] = pUuid->Gen.u8ClockSeqLow; + pEfiGuid->abData4[2] = pUuid->Gen.au8Node[0]; + pEfiGuid->abData4[3] = pUuid->Gen.au8Node[1]; + pEfiGuid->abData4[4] = pUuid->Gen.au8Node[2]; + pEfiGuid->abData4[5] = pUuid->Gen.au8Node[3]; + pEfiGuid->abData4[6] = pUuid->Gen.au8Node[4]; + pEfiGuid->abData4[7] = pUuid->Gen.au8Node[5]; + return pEfiGuid; +} + + +RTDECL(int) RTEfiGuidCompare(PCEFI_GUID pGuid1, PCEFI_GUID pGuid2) +{ + /* + * Special cases. + */ + if (pGuid1 == pGuid2) + return 0; + AssertPtrReturn(pGuid1, -1); + AssertPtrReturn(pGuid2, 1); + + /* + * Standard cases. + */ + if (pGuid1->u32Data1 != pGuid2->u32Data1) + return pGuid1->u32Data1 < pGuid2->u32Data1 ? -1 : 1; + if (pGuid1->u16Data2 != pGuid2->u16Data2) + return pGuid1->u16Data2 < pGuid2->u16Data2 ? -1 : 1; + if (pGuid1->u16Data3 != pGuid2->u16Data3) + return pGuid1->u16Data3 < pGuid2->u16Data3 ? -1 : 1; + if (pGuid1->abData4[0] != pGuid2->abData4[0]) + return pGuid1->abData4[0] < pGuid2->abData4[0] ? -1 : 1; + if (pGuid1->abData4[1] != pGuid2->abData4[1]) + return pGuid1->abData4[1] < pGuid2->abData4[1] ? -1 : 1; + if (pGuid1->abData4[2] != pGuid2->abData4[2]) + return pGuid1->abData4[2] < pGuid2->abData4[2] ? -1 : 1; + if (pGuid1->abData4[3] != pGuid2->abData4[3]) + return pGuid1->abData4[3] < pGuid2->abData4[3] ? -1 : 1; + if (pGuid1->abData4[4] != pGuid2->abData4[4]) + return pGuid1->abData4[4] < pGuid2->abData4[4] ? -1 : 1; + if (pGuid1->abData4[5] != pGuid2->abData4[5]) + return pGuid1->abData4[5] < pGuid2->abData4[5] ? -1 : 1; + if (pGuid1->abData4[6] != pGuid2->abData4[6]) + return pGuid1->abData4[6] < pGuid2->abData4[6] ? -1 : 1; + if (pGuid1->abData4[7] != pGuid2->abData4[7]) + return pGuid1->abData4[7] < pGuid2->abData4[7] ? -1 : 1; + return 0; +} + |