diff options
Diffstat (limited to 'src/VBox/Main/src-server/HostDrivePartitionImpl.cpp')
| -rw-r--r-- | src/VBox/Main/src-server/HostDrivePartitionImpl.cpp | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/src/VBox/Main/src-server/HostDrivePartitionImpl.cpp b/src/VBox/Main/src-server/HostDrivePartitionImpl.cpp new file mode 100644 index 00000000..a5a40333 --- /dev/null +++ b/src/VBox/Main/src-server/HostDrivePartitionImpl.cpp @@ -0,0 +1,381 @@ +/* $Id: HostDrivePartitionImpl.cpp $ */ +/** @file + * VirtualBox Main - IHostDrivePartition implementation, VBoxSVC. + */ + +/* + * Copyright (C) 2013-2022 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>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +#define LOG_GROUP LOG_GROUP_MAIN_HOSTDRIVEPARTITION +#include "HostDrivePartitionImpl.h" +#include "LoggingNew.h" + +#include <iprt/errcore.h> + +/* + * HostDrivePartition implementation. + */ +DEFINE_EMPTY_CTOR_DTOR(HostDrivePartition) + +HRESULT HostDrivePartition::FinalConstruct() +{ + return BaseFinalConstruct(); +} + +void HostDrivePartition::FinalRelease() +{ + uninit(); + + BaseFinalRelease(); +} + +/* + * Initializes the instance. + */ +HRESULT HostDrivePartition::initFromDvmVol(RTDVMVOLUME hVol) +{ + LogFlowThisFunc(("\n")); + + AssertReturn(hVol != NIL_RTDVMVOLUME, E_INVALIDARG); + + /* Enclose the state transition NotReady->InInit->Ready */ + AutoInitSpan autoInitSpan(this); + AssertReturn(autoInitSpan.isOk(), E_FAIL); + + /* Common attributes: */ + m.number = RTDvmVolumeGetIndex(hVol, RTDVMVOLIDX_HOST); + m.cbVol = (LONG64)RTDvmVolumeGetSize(hVol); + if (m.cbVol < 0) + m.cbVol = INT64_MAX; + + uint64_t offStart = 0; + uint64_t offLastIgnored = 0; + int vrc = RTDvmVolumeQueryRange(hVol, &offStart, &offLastIgnored); + AssertRC(vrc); + m.offStart = RT_SUCCESS(vrc) ? (LONG64)offStart : 0; + Assert((uint64_t)m.cbVol == offLastIgnored - offStart + 1 || RT_FAILURE(vrc)); + if (m.offStart < 0) + m.offStart = INT64_MAX; + + uint64_t fFlags = RTDvmVolumeGetFlags(hVol); + m.active = (fFlags & (DVMVOLUME_FLAGS_BOOTABLE | DVMVOLUME_FLAGS_ACTIVE)) != 0; + + /* MBR: */ + m.firstCylinder = (uint16_t)RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_FIRST_CYLINDER, 0); + m.firstHead = (uint8_t )RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_FIRST_HEAD, 0); + m.firstSector = (uint8_t )RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_FIRST_SECTOR, 0); + m.lastCylinder = (uint16_t)RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_LAST_CYLINDER, 0); + m.lastHead = (uint8_t )RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_LAST_HEAD, 0); + m.lastSector = (uint8_t )RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_LAST_SECTOR, 0); + m.bMBRType = (uint8_t )RTDvmVolumeGetPropU64(hVol, RTDVMVOLPROP_MBR_TYPE, 0); + + /* GPT: */ + RTUUID Uuid; + vrc = RTDvmVolumeQueryProp(hVol, RTDVMVOLPROP_GPT_TYPE, &Uuid, sizeof(Uuid), NULL); + if (RT_SUCCESS(vrc)) + m.typeUuid = Uuid; + vrc = RTDvmVolumeQueryProp(hVol, RTDVMVOLPROP_GPT_UUID, &Uuid, sizeof(Uuid), NULL); + if (RT_SUCCESS(vrc)) + m.uuid = Uuid; + + char *pszName = NULL; + vrc = RTDvmVolumeQueryName(hVol, &pszName); + if (RT_SUCCESS(vrc)) + { + HRESULT hrc = m.name.assignEx(pszName); + RTStrFree(pszName); + AssertComRCReturn(hrc, hrc); + } + + /* + * Do the type translation to the best of our ability. + */ + m.enmType = PartitionType_Unknown; + if (m.typeUuid.isZero()) + switch ((PartitionType_T)m.bMBRType) + { + case PartitionType_FAT12: + case PartitionType_FAT16: + case PartitionType_FAT: + case PartitionType_IFS: + case PartitionType_FAT32CHS: + case PartitionType_FAT32LBA: + case PartitionType_FAT16B: + case PartitionType_Extended: + case PartitionType_WindowsRE: + case PartitionType_LinuxSwapOld: + case PartitionType_LinuxOld: + case PartitionType_DragonFlyBSDSlice: + case PartitionType_LinuxSwap: + case PartitionType_Linux: + case PartitionType_LinuxExtended: + case PartitionType_LinuxLVM: + case PartitionType_BSDSlice: + case PartitionType_AppleUFS: + case PartitionType_AppleHFS: + case PartitionType_Solaris: + case PartitionType_GPT: + case PartitionType_EFI: + m.enmType = (PartitionType_T)m.bMBRType; + break; + + case PartitionType_Empty: + default: + break; + } + else + { + static struct { const char *pszUuid; PartitionType_T enmType; } const s_aUuidToType[] = + { + { "024dee41-33e7-11d3-9d69-0008c781f39f", PartitionType_MBR }, + { "c12a7328-f81f-11d2-ba4b-00a0c93ec93b", PartitionType_EFI }, + { "d3bfe2de-3daf-11df-ba40-e3a556d89593", PartitionType_iFFS }, + { "f4019732-066e-4e12-8273-346c5641494f", PartitionType_SonyBoot }, + { "bfbfafe7-a34f-448a-9a5b-6213eb736c22", PartitionType_LenovoBoot }, + /* Win: */ + { "e3c9e316-0b5c-4db8-817d-f92df00215ae", PartitionType_WindowsMSR }, + { "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7", PartitionType_WindowsBasicData }, + { "5808c8aa-7e8f-42e0-85d2-e1e90434cfb3", PartitionType_WindowsLDMMeta }, + { "af9b60a0-1431-4f62-bc68-3311714a69ad", PartitionType_WindowsLDMData }, + { "de94bba4-06d1-4d40-a16a-bfd50179d6ac", PartitionType_WindowsRecovery }, + { "e75caf8f-f680-4cee-afa3-b001e56efc2d", PartitionType_WindowsStorageSpaces }, + { "558d43c5-a1ac-43c0-aac8-d1472b2923d1", PartitionType_WindowsStorageReplica }, + { "37affc90-ef7d-4e96-91c3-2d7ae055b174", PartitionType_IBMGPFS }, + /* Linux: */ + { "0fc63daf-8483-4772-8e79-3d69d8477de4", PartitionType_LinuxData }, + { "a19d880f-05fc-4d3b-a006-743f0f84911e", PartitionType_LinuxRAID }, + { "44479540-f297-41b2-9af7-d131d5f0458a", PartitionType_LinuxRootX86 }, + { "4f68bce3-e8cd-4db1-96e7-fbcaf984b709", PartitionType_LinuxRootAMD64 }, + { "69dad710-2ce4-4e3c-b16c-21a1d49abed3", PartitionType_LinuxRootARM32 }, + { "b921b045-1df0-41c3-af44-4c6f280d3fae", PartitionType_LinuxRootARM64 }, + { "933ac7e1-2eb4-4f13-b844-0e14e2aef915", PartitionType_LinuxHome }, + { "3b8f8425-20e0-4f3b-907f-1a25a76f98e8", PartitionType_LinuxSrv }, + { "0657fd6d-a4ab-43c4-84e5-0933c84b4f4f", PartitionType_LinuxSwap }, + { "e6d6d379-f507-44c2-a23c-238f2a3df928", PartitionType_LinuxLVM }, + { "7ffec5c9-2d00-49b7-8941-3ea10a5586b7", PartitionType_LinuxPlainDmCrypt }, + { "ca7d7ccb-63ed-4c53-861c-1742536059cc", PartitionType_LinuxLUKS }, + { "8da63339-0007-60c0-c436-083ac8230908", PartitionType_LinuxReserved }, + /* FreeBSD: */ + { "83bd6b9d-7f41-11dc-be0b-001560b84f0f", PartitionType_FreeBSDBoot }, + { "516e7cb4-6ecf-11d6-8ff8-00022d09712b", PartitionType_FreeBSDData }, + { "516e7cb5-6ecf-11d6-8ff8-00022d09712b", PartitionType_FreeBSDSwap }, + { "516e7cb6-6ecf-11d6-8ff8-00022d09712b", PartitionType_FreeBSDUFS }, + { "516e7cb8-6ecf-11d6-8ff8-00022d09712b", PartitionType_FreeBSDVinum }, + { "516e7cba-6ecf-11d6-8ff8-00022d09712b", PartitionType_FreeBSDZFS }, + /* Apple/macOS: */ + { "48465300-0000-11aa-aa11-00306543ecac", PartitionType_AppleHFSPlus }, + { "7c3457ef-0000-11aa-aa11-00306543ecac", PartitionType_AppleAPFS }, + { "55465300-0000-11aa-aa11-00306543ecac", PartitionType_AppleUFS }, + { "52414944-0000-11aa-aa11-00306543ecac", PartitionType_AppleRAID }, + { "52414944-5f4f-11aa-aa11-00306543ecac", PartitionType_AppleRAIDOffline }, + { "426f6f74-0000-11aa-aa11-00306543ecac", PartitionType_AppleBoot }, + { "4c616265-6c00-11aa-aa11-00306543ecac", PartitionType_AppleLabel }, + { "5265636f-7665-11aa-aa11-00306543ecac", PartitionType_AppleTvRecovery }, + { "53746f72-6167-11aa-aa11-00306543ecac", PartitionType_AppleCoreStorage }, + { "b6fa30da-92d2-4a9a-96f1-871ec6486200", PartitionType_SoftRAIDStatus }, + { "2e313465-19b9-463f-8126-8a7993773801", PartitionType_SoftRAIDScratch }, + { "fa709c7e-65b1-4593-bfd5-e71d61de9b02", PartitionType_SoftRAIDVolume }, + { "bbba6df5-f46f-4a89-8f59-8765b2727503", PartitionType_SoftRAIDCache }, + /* Solaris */ + { "6a82cb45-1dd2-11b2-99a6-080020736631", PartitionType_SolarisBoot }, + { "6a85cf4d-1dd2-11b2-99a6-080020736631", PartitionType_SolarisRoot }, + { "6a87c46f-1dd2-11b2-99a6-080020736631", PartitionType_SolarisSwap }, + { "6a8b642b-1dd2-11b2-99a6-080020736631", PartitionType_SolarisBackup }, + { "6a898cc3-1dd2-11b2-99a6-080020736631", PartitionType_SolarisUsr }, + { "6a8ef2e9-1dd2-11b2-99a6-080020736631", PartitionType_SolarisVar }, + { "6a90ba39-1dd2-11b2-99a6-080020736631", PartitionType_SolarisHome }, + { "6a9283a5-1dd2-11b2-99a6-080020736631", PartitionType_SolarisAltSector }, + { "6a945a3b-1dd2-11b2-99a6-080020736631", PartitionType_SolarisReserved }, + { "6a9630d1-1dd2-11b2-99a6-080020736631", PartitionType_SolarisReserved }, + { "6a980767-1dd2-11b2-99a6-080020736631", PartitionType_SolarisReserved }, + { "6a96237f-1dd2-11b2-99a6-080020736631", PartitionType_SolarisReserved }, + { "6a8d2ac7-1dd2-11b2-99a6-080020736631", PartitionType_SolarisReserved }, + /* NetBSD: */ + { "49f48d32-b10e-11dc-b99b-0019d1879648", PartitionType_NetBSDSwap }, + { "49f48d5a-b10e-11dc-b99b-0019d1879648", PartitionType_NetBSDFFS }, + { "49f48d82-b10e-11dc-b99b-0019d1879648", PartitionType_NetBSDLFS }, + { "49f48daa-b10e-11dc-b99b-0019d1879648", PartitionType_NetBSDRAID }, + { "2db519c4-b10f-11dc-b99b-0019d1879648", PartitionType_NetBSDConcatenated }, + { "2db519ec-b10f-11dc-b99b-0019d1879648", PartitionType_NetBSDEncrypted }, + /* Chrome OS: */ + { "fe3a2a5d-4f32-41a7-b725-accc3285a309", PartitionType_ChromeOSKernel }, + { "3cb8e202-3b7e-47dd-8a3c-7ff2a13cfcec", PartitionType_ChromeOSRootFS }, + { "2e0a753d-9e48-43b0-8337-b15192cb1b5e", PartitionType_ChromeOSFuture }, + /* Container Linux: */ + { "5dfbf5f4-2848-4bac-aa5e-0d9a20b745a6", PartitionType_ContLnxUsr }, + { "3884dd41-8582-4404-b9a8-e9b84f2df50e", PartitionType_ContLnxRoot }, + { "c95dc21a-df0e-4340-8d7b-26cbfa9a03e0", PartitionType_ContLnxReserved }, + { "be9067b9-ea49-4f15-b4f6-f36f8c9e1818", PartitionType_ContLnxRootRAID }, + /* Haiku: */ + { "42465331-3ba3-10f1-802a-4861696b7521", PartitionType_HaikuBFS }, + /* MidnightBSD */ + { "85d5e45e-237c-11e1-b4b3-e89a8f7fc3a7", PartitionType_MidntBSDBoot }, + { "85d5e45a-237c-11e1-b4b3-e89a8f7fc3a7", PartitionType_MidntBSDData }, + { "85d5e45b-237c-11e1-b4b3-e89a8f7fc3a7", PartitionType_MidntBSDSwap }, + { "0394ef8b-237e-11e1-b4b3-e89a8f7fc3a7", PartitionType_MidntBSDUFS }, + { "85d5e45c-237c-11e1-b4b3-e89a8f7fc3a7", PartitionType_MidntBSDVium }, + { "85d5e45d-237c-11e1-b4b3-e89a8f7fc3a7", PartitionType_MidntBSDZFS }, + /* OpenBSD: */ + { "824cc7a0-36a8-11e3-890a-952519ad3f61", PartitionType_OpenBSDData }, + /* QNX: */ + { "cef5a9ad-73bc-4601-89f3-cdeeeee321a1", PartitionType_QNXPowerSafeFS }, + /* Plan 9: */ + { "c91818f9-8025-47af-89d2-f030d7000c2c", PartitionType_Plan9 }, + /* VMWare ESX: */ + { "9d275380-40ad-11db-bf97-000c2911d1b8", PartitionType_VMWareVMKCore }, + { "aa31e02a-400f-11db-9590-000c2911d1b8", PartitionType_VMWareVMFS }, + { "9198effc-31c0-11db-8f78-000c2911d1b8", PartitionType_VMWareReserved }, + /* Android-x86: */ + { "2568845d-2332-4675-bc39-8fa5a4748d15", PartitionType_AndroidX86Bootloader }, + { "114eaffe-1552-4022-b26e-9b053604cf84", PartitionType_AndroidX86Bootloader2 }, + { "49a4d17f-93a3-45c1-a0de-f50b2ebe2599", PartitionType_AndroidX86Boot }, + { "4177c722-9e92-4aab-8644-43502bfd5506", PartitionType_AndroidX86Recovery }, + { "ef32a33b-a409-486c-9141-9ffb711f6266", PartitionType_AndroidX86Misc }, + { "20ac26be-20b7-11e3-84c5-6cfdb94711e9", PartitionType_AndroidX86Metadata }, + { "38f428e6-d326-425d-9140-6e0ea133647c", PartitionType_AndroidX86System }, + { "a893ef21-e428-470a-9e55-0668fd91a2d9", PartitionType_AndroidX86Cache }, + { "dc76dda9-5ac1-491c-af42-a82591580c0d", PartitionType_AndroidX86Data }, + { "ebc597d0-2053-4b15-8b64-e0aac75f4db1", PartitionType_AndroidX86Persistent }, + { "c5a0aeec-13ea-11e5-a1b1-001e67ca0c3c", PartitionType_AndroidX86Vendor }, + { "bd59408b-4514-490d-bf12-9878d963f378", PartitionType_AndroidX86Config }, + { "8f68cc74-c5e5-48da-be91-a0c8c15e9c80", PartitionType_AndroidX86Factory }, + { "9fdaa6ef-4b3f-40d2-ba8d-bff16bfb887b", PartitionType_AndroidX86FactoryAlt }, + { "767941d0-2085-11e3-ad3b-6cfdb94711e9", PartitionType_AndroidX86Fastboot }, + { "ac6d7924-eb71-4df8-b48d-e267b27148ff", PartitionType_AndroidX86OEM }, + /* Android ARM: */ + { "19a710a2-b3ca-11e4-b026-10604b889dcf", PartitionType_AndroidARMMeta }, + { "193d1ea4-b3ca-11e4-b075-10604b889dcf", PartitionType_AndroidARMExt }, + /* Open Network Install Environment: */ + { "7412f7d5-a156-4b13-81dc-867174929325", PartitionType_ONIEBoot }, + { "d4e6e2cd-4469-46f3-b5cb-1bff57afc149", PartitionType_ONIEConfig }, + /* PowerPC: */ + { "9e1a2d38-c612-4316-aa26-8b49521e5a8b", PartitionType_PowerPCPrep }, + /* freedesktop.org: */ + { "bc13c2ff-59e6-4262-a352-b275fd6f7172", PartitionType_XDGShrBootConfig }, + /* Ceph: */ + { "cafecafe-9b03-4f30-b4c6-b4b80ceff106", PartitionType_CephBlock }, + { "30cd0809-c2b2-499c-8879-2d6b78529876", PartitionType_CephBlockDB }, + { "93b0052d-02d9-4d8a-a43b-33a3ee4dfbc3", PartitionType_CephBlockDBDmc }, + { "166418da-c469-4022-adf4-b30afd37f176", PartitionType_CephBlockDBDmcLUKS }, + { "cafecafe-9b03-4f30-b4c6-5ec00ceff106", PartitionType_CephBlockDmc }, + { "cafecafe-9b03-4f30-b4c6-35865ceff106", PartitionType_CephBlockDmcLUKS }, + { "5ce17fce-4087-4169-b7ff-056cc58473f9", PartitionType_CephBlockWALog }, + { "306e8683-4fe2-4330-b7c0-00a917c16966", PartitionType_CephBlockWALogDmc }, + { "86a32090-3647-40b9-bbbd-38d8c573aa86", PartitionType_CephBlockWALogDmcLUKS }, + { "89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be", PartitionType_CephDisk }, + { "89c57f98-2fe5-4dc0-89c1-5ec00ceff2be", PartitionType_CephDiskDmc }, + { "45b0969e-9b03-4f30-b4c6-b4b80ceff106", PartitionType_CephJournal }, + { "45b0969e-9b03-4f30-b4c6-5ec00ceff106", PartitionType_CephJournalDmc }, + { "45b0969e-9b03-4f30-b4c6-35865ceff106", PartitionType_CephJournalDmcLUKS }, + { "fb3aabf9-d25f-47cc-bf5e-721d1816496b", PartitionType_CephLockbox }, + { "cafecafe-8ae0-4982-bf9d-5a8d867af560", PartitionType_CephMultipathBlock1 }, + { "7f4a666a-16f3-47a2-8445-152ef4d03f6c", PartitionType_CephMultipathBlock2 }, + { "ec6d6385-e346-45dc-be91-da2a7c8b3261", PartitionType_CephMultipathBlockDB }, + { "01b41e1b-002a-453c-9f17-88793989ff8f", PartitionType_CephMultipathBLockWALog }, + { "45b0969e-8ae0-4982-bf9d-5a8d867af560", PartitionType_CephMultipathJournal }, + { "4fbd7e29-8ae0-4982-bf9d-5a8d867af560", PartitionType_CephMultipathOSD }, + { "4fbd7e29-9d25-41b8-afd0-062c0ceff05d", PartitionType_CephOSD }, + { "4fbd7e29-9d25-41b8-afd0-5ec00ceff05d", PartitionType_CephOSDDmc }, + { "4fbd7e29-9d25-41b8-afd0-35865ceff05d", PartitionType_CephOSDDmcLUKS }, + }; + for (size_t i = 0; i < RT_ELEMENTS(s_aUuidToType); i++) + if (m.typeUuid.equalsString(s_aUuidToType[i].pszUuid)) + { + m.enmType = s_aUuidToType[i].enmType; + break; + } + + /* Some OSes are using non-random UUIDs and we can at least identify the + OS if not the exact type. */ + if (m.enmType == PartitionType_Unknown) + { + char szType[RTUUID_STR_LENGTH]; + m.typeUuid.toString(szType, sizeof(szType)); + RTStrToLower(szType); + if (RTStrSimplePatternMatch(szType, "516e7c??-6ecf-11d6-8ff8-00022d09712b")) + m.enmType = PartitionType_FreeBSDUnknown; + else if (RTStrSimplePatternMatch(szType, "????????-????-11aa-aa11-00306543ecac")) + m.enmType = PartitionType_AppleUnknown; + else if (RTStrSimplePatternMatch(szType, "????????-1dd2-11b2-99a6-080020736631")) + m.enmType = PartitionType_SolarisUnknown; + else if (RTStrSimplePatternMatch(szType, "????????-b1??-11dc-b99b-0019d1879648")) + m.enmType = PartitionType_NetBSDUnknown; + else if (RTStrSimplePatternMatch(szType, "????????-23??-11e1-b4b3-e89a8f7fc3a7")) + m.enmType = PartitionType_MidntBSDUnknown; + else if (RTStrSimplePatternMatch(szType, "????????-????-11db-????-000c2911d1b8")) + m.enmType = PartitionType_VMWareUnknown; + } + +#ifdef VBOX_STRICT + /* Make sure we've done have any duplicates in the translation table: */ + static bool s_fCheckedForDuplicates = false; + if (!s_fCheckedForDuplicates) + { + for (size_t i = 0; i < RT_ELEMENTS(s_aUuidToType); i++) + for (size_t j = i + 1; j < RT_ELEMENTS(s_aUuidToType); j++) + AssertMsg(RTUuidCompare2Strs(s_aUuidToType[i].pszUuid, s_aUuidToType[j].pszUuid) != 0, + ("%d & %d: %s\n", i, j, s_aUuidToType[i].pszUuid)); + s_fCheckedForDuplicates = true; + } +#endif + + } + + /* Confirm a successful initialization */ + autoInitSpan.setSucceeded(); + + return S_OK; +} + +/* + * Uninitializes the instance. + * Called either from FinalRelease() or by the parent when it gets destroyed. + */ +void HostDrivePartition::uninit() +{ + LogFlowThisFunc(("\n")); + + /* Enclose the state transition Ready->InUninit->NotReady */ + AutoUninitSpan autoUninitSpan(this); + if (autoUninitSpan.uninitDone()) + return; + + m.number = 0; + m.cbVol = 0; + m.offStart = 0; + m.enmType = PartitionType_Empty; + m.active = 0; + + m.bMBRType = 0; + m.firstCylinder = 0; + m.firstHead = 0; + m.firstSector = 0; + m.lastCylinder = 0; + m.lastHead = 0; + m.lastSector = 0; + + m.typeUuid.clear(); + m.uuid.clear(); + m.name.setNull(); +} + +/* vi: set tabstop=4 shiftwidth=4 expandtab: */ |