| 1 | /* $Id: version.h 88975 2021-05-11 11:13:09Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Linux kernel version.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #ifndef IPRT_INCLUDED_linux_version_h
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| 28 | #define IPRT_INCLUDED_linux_version_h
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| 29 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 30 | # pragma once
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| 31 | #endif
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| 32 |
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| 33 | #include <linux/version.h>
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| 34 |
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| 35 | /* We need utsrelease.h in order to detect Ubuntu kernel,
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| 36 | * i.e. check if UTS_UBUNTU_RELEASE_ABI is defined. Support kernels
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| 37 | * starting from Ubuntu 14.04 Trusty which is based on upstream
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| 38 | * kernel 3.13.11. */
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| 39 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,11))
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| 40 | # include <generated/utsrelease.h>
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| 41 | # include <iprt/cdefs.h>
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| 42 | #endif
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| 43 |
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| 44 | /** @def RTLNX_VER_MIN
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| 45 | * Evaluates to true if the linux kernel version is equal or higher to the
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| 46 | * one specfied. */
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| 47 | #define RTLNX_VER_MIN(a_Major, a_Minor, a_Patch) \
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| 48 | (LINUX_VERSION_CODE >= KERNEL_VERSION(a_Major, a_Minor, a_Patch))
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| 49 |
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| 50 | /** @def RTLNX_VER_MAX
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| 51 | * Evaluates to true if the linux kernel version is less to the one specfied
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| 52 | * (exclusive). */
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| 53 | #define RTLNX_VER_MAX(a_Major, a_Minor, a_Patch) \
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| 54 | (LINUX_VERSION_CODE < KERNEL_VERSION(a_Major, a_Minor, a_Patch))
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| 55 |
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| 56 | /** @def RTLNX_VER_RANGE
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| 57 | * Evaluates to true if the linux kernel version is equal or higher to the given
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| 58 | * minimum version and less (but not equal) to the maximum version (exclusive). */
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| 59 | #define RTLNX_VER_RANGE(a_MajorMin, a_MinorMin, a_PatchMin, a_MajorMax, a_MinorMax, a_PatchMax) \
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| 60 | ( LINUX_VERSION_CODE >= KERNEL_VERSION(a_MajorMin, a_MinorMin, a_PatchMin) \
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| 61 | && LINUX_VERSION_CODE < KERNEL_VERSION(a_MajorMax, a_MinorMax, a_PatchMax) )
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| 62 |
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| 63 |
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| 64 | /** @def RTLNX_RHEL_MIN
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| 65 | * Require a minium RedHat release.
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| 66 | * @param a_iMajor The major release number (RHEL_MAJOR).
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| 67 | * @param a_iMinor The minor release number (RHEL_MINOR).
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| 68 | * @sa RTLNX_RHEL_MAX, RTLNX_RHEL_RANGE, RTLNX_RHEL_MAJ_PREREQ
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| 69 | */
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| 70 | #if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
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| 71 | # define RTLNX_RHEL_MIN(a_iMajor, a_iMinor) \
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| 72 | ((RHEL_MAJOR) > (a_iMajor) || ((RHEL_MAJOR) == (a_iMajor) && (RHEL_MINOR) >= (a_iMinor)))
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| 73 | #else
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| 74 | # define RTLNX_RHEL_MIN(a_iMajor, a_iMinor) (0)
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| 75 | #endif
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| 76 |
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| 77 | /** @def RTLNX_RHEL_MAX
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| 78 | * Require a maximum RedHat release, true for all RHEL versions below it.
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| 79 | * @param a_iMajor The major release number (RHEL_MAJOR).
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| 80 | * @param a_iMinor The minor release number (RHEL_MINOR).
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| 81 | * @sa RTLNX_RHEL_MIN, RTLNX_RHEL_RANGE, RTLNX_RHEL_MAJ_PREREQ
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| 82 | */
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| 83 | #if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
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| 84 | # define RTLNX_RHEL_MAX(a_iMajor, a_iMinor) \
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| 85 | ((RHEL_MAJOR) < (a_iMajor) || ((RHEL_MAJOR) == (a_iMajor) && (RHEL_MINOR) < (a_iMinor)))
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| 86 | #else
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| 87 | # define RTLNX_RHEL_MAX(a_iMajor, a_iMinor) (0)
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| 88 | #endif
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| 89 |
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| 90 | /** @def RTLNX_RHEL_RANGE
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| 91 | * Check that it's a RedHat kernel in the given version range.
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| 92 | * The max version is exclusive, the minimum inclusive.
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| 93 | * @sa RTLNX_RHEL_MIN, RTLNX_RHEL_MAX, RTLNX_RHEL_MAJ_PREREQ
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| 94 | */
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| 95 | #if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
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| 96 | # define RTLNX_RHEL_RANGE(a_iMajorMin, a_iMinorMin, a_iMajorMax, a_iMinorMax) \
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| 97 | (RTLNX_RHEL_MIN(a_iMajorMin, a_iMinorMin) && RTLNX_RHEL_MAX(a_iMajorMax, a_iMinorMax))
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| 98 | #else
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| 99 | # define RTLNX_RHEL_RANGE(a_iMajorMin, a_iMinorMin, a_iMajorMax, a_iMinorMax) (0)
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| 100 | #endif
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| 101 |
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| 102 | /** @def RTLNX_RHEL_MAJ_PREREQ
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| 103 | * Require a minimum minor release number for the given RedHat release.
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| 104 | * @param a_iMajor RHEL_MAJOR must _equal_ this.
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| 105 | * @param a_iMinor RHEL_MINOR must be greater or equal to this.
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| 106 | * @sa RTLNX_RHEL_MIN, RTLNX_RHEL_MAX
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| 107 | */
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| 108 | #if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
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| 109 | # define RTLNX_RHEL_MAJ_PREREQ(a_iMajor, a_iMinor) ((RHEL_MAJOR) == (a_iMajor) && (RHEL_MINOR) >= (a_iMinor))
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| 110 | #else
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| 111 | # define RTLNX_RHEL_MAJ_PREREQ(a_iMajor, a_iMinor) (0)
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| 112 | #endif
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| 113 |
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| 114 |
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| 115 | /** @def RTLNX_SUSE_MAJ_PREREQ
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| 116 | * Require a minimum minor release number for the given SUSE release.
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| 117 | * @param a_iMajor CONFIG_SUSE_VERSION must _equal_ this.
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| 118 | * @param a_iMinor CONFIG_SUSE_PATCHLEVEL must be greater or equal to this.
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| 119 | */
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| 120 | #if defined(CONFIG_SUSE_VERSION) && defined(CONFIG_SUSE_PATCHLEVEL)
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| 121 | # define RTLNX_SUSE_MAJ_PREREQ(a_iMajor, a_iMinor) ((CONFIG_SUSE_VERSION) == (a_iMajor) && (CONFIG_SUSE_PATCHLEVEL) >= (a_iMinor))
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| 122 | #else
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| 123 | # define RTLNX_SUSE_MAJ_PREREQ(a_iMajor, a_iMinor) (0)
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| 124 | #endif
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| 125 |
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| 126 |
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| 127 | #if defined(UTS_UBUNTU_RELEASE_ABI)
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| 128 | /** @def RTLNX_UBUNTU_VERSION
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| 129 | * Ubuntu kernels are based on upstream kernels and provide
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| 130 | * version information with regular KERNEL_VERSION() macro. However,
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| 131 | * Ubuntu kernel additionally provides UTS_UBUNTU_RELEASE_ABI macro
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| 132 | * which increases with the kernel update while KERNEL_VERSION() info
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| 133 | * stays the same.
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| 134 | *
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| 135 | * UTS_UBUNTU_RELEASE_ABI does not increase constantly, but rather reset
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| 136 | * when the next kernel update is based on a newer upstream version (i.e.
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| 137 | * KERNEL_VERSION() value has changed). Therefore, in order to compare
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| 138 | * Ubuntu kernels, UTS_UBUNTU_RELEASE_ABI macro is treated as a KERNEL_VERSION()
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| 139 | * extension and appended to the end of it. So, regular 24-bit-value
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| 140 | * of KERNEL_VERSION() becomes 32-bit-value, as can be seen below.
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| 141 | *
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| 142 | * NOTE: @a_iVer is expected to be in range of [0x000000..0xFFFFFF],
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| 143 | * @a_iAbi is expected to be in range of [0x00..0xFF].
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| 144 | *
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| 145 | * @param a_iVer The 24-bit-value of kernel version number, result
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| 146 | * of KERNEL_VERSION() macro.
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| 147 | * @param a_iAbi 8-bit Ubuntu kernel ABI version number.
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| 148 | */
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| 149 | # define RTLNX_UBUNTU_VERSION(a_iVer, a_iAbi) \
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| 150 | (((a_iVer) << 8) | (RT_MIN((a_iAbi), 0xFF)))
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| 151 |
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| 152 | /** @def RTLNX_UBUNTU_MIN
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| 153 | * Require Ubuntu release to be equal or newer than specified version.
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| 154 | * @param a_iMajor The major kernel version number.
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| 155 | * @param a_iMinor The minor kernel version number.
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| 156 | * @param a_iPatch The micro kernel version number.
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| 157 | * @param a_iAbi Ubuntu kernel ABI version number.
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| 158 | */
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| 159 | # define RTLNX_UBUNTU_MIN(a_iMajor, a_iMinor, a_iPatch, a_iAbi) \
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| 160 | ( RTLNX_UBUNTU_VERSION(LINUX_VERSION_CODE, UTS_UBUNTU_RELEASE_ABI) \
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| 161 | >= RTLNX_UBUNTU_VERSION(KERNEL_VERSION(a_iMajor, a_iMinor, a_iPatch), a_iAbi) )
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| 162 |
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| 163 | /** @def RTLNX_UBUNTU_MAX
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| 164 | * Require Ubuntu release to be older than specified version.
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| 165 | * @param a_iMajor The major kernel version number.
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| 166 | * @param a_iMinor The minor kernel version number.
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| 167 | * @param a_iPatch The micro kernel version number.
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| 168 | * @param a_iAbi Ubuntu kernel ABI version number.
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| 169 | */
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| 170 | # define RTLNX_UBUNTU_MAX(a_iMajor, a_iMinor, a_iPatch, a_iAbi) \
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| 171 | ( RTLNX_UBUNTU_VERSION(LINUX_VERSION_CODE, UTS_UBUNTU_RELEASE_ABI) \
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| 172 | < RTLNX_UBUNTU_VERSION(KERNEL_VERSION(a_iMajor, a_iMinor, a_iPatch), a_iAbi) )
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| 173 |
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| 174 | /** @def RTLNX_UBUNTU_RANGE
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| 175 | * Require Ubuntu release to be in specified versions range.
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| 176 | * The max version is exclusive, the minimum inclusive.
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| 177 | *
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| 178 | * @param a_iMajorMin The major kernel version number (minimum).
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| 179 | * @param a_iMinorMin The minor kernel version number (minimum).
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| 180 | * @param a_iPatchMin The micro kernel version number (minimum).
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| 181 | * @param a_iAbiMin Ubuntu kernel ABI version number (minimum).
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| 182 | * @param a_iMajorMax The major kernel version number (maximum).
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| 183 | * @param a_iMinorMax The minor kernel version number (maximum).
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| 184 | * @param a_iPatchMax The micro kernel version number (maximum).
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| 185 | * @param a_iAbiMax Ubuntu kernel ABI version number (maximum).
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| 186 | */
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| 187 | # define RTLNX_UBUNTU_RANGE(a_iMajorMin, a_iMinorMin, a_iPatchMin, a_iAbiMin, \
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| 188 | a_iMajorMax, a_iMinorMax, a_iPatchMax, a_iAbiMax) \
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| 189 | ( RTLNX_UBUNTU_MIN(a_iMajorMin, a_iMinorMin, a_iPatchMin, a_iAbiMin) \
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| 190 | && RTLNX_UBUNTU_MAX(a_iMajorMax, a_iMinorMax, a_iPatchMax, a_iAbiMax))
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| 191 |
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| 192 | #else /* !UTS_UBUNTU_RELEASE_ABI */
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| 193 | # define RTLNX_UBUNTU_MIN(a_iMajor, a_iMinor, a_iPatch, a_iAbi) (0)
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| 194 | # define RTLNX_UBUNTU_MAX(a_iMajor, a_iMinor, a_iPatch, a_iAbi) (0)
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| 195 | #define RTLNX_UBUNTU_RANGE(a_iMajorMin, a_iMinorMin, a_iPatchMin, a_iAbiMin, \
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| 196 | a_iMajorMax, a_iMinorMax, a_iPatchMax, a_iAbiMax) (0)
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| 197 | #endif /* !UTS_UBUNTU_RELEASE_ABI */
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| 198 |
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| 199 | #endif /* !IPRT_INCLUDED_linux_version_h */
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| 200 |
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