1 | Build and Install
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2 | =================
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3 |
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4 | This document describes installation on all supported operating
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5 | systems (the Unix/Linux family, including macOS), OpenVMS,
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6 | and Windows).
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7 |
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8 | Table of Contents
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9 | =================
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10 |
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11 | - [Prerequisites](#prerequisites)
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12 | - [Notational Conventions](#notational-conventions)
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13 | - [Quick Installation Guide](#quick-installation-guide)
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14 | - [Building OpenSSL](#building-openssl)
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15 | - [Installing OpenSSL](#installing-openssl)
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16 | - [Configuration Options](#configuration-options)
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17 | - [API Level](#api-level)
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18 | - [Cross Compile Prefix](#cross-compile-prefix)
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19 | - [Build Type](#build-type)
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20 | - [Directories](#directories)
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21 | - [Compiler Warnings](#compiler-warnings)
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22 | - [ZLib Flags](#zlib-flags)
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23 | - [Seeding the Random Generator](#seeding-the-random-generator)
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24 | - [Setting the FIPS HMAC key](#setting-the-FIPS-HMAC-key)
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25 | - [Enable and Disable Features](#enable-and-disable-features)
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26 | - [Displaying configuration data](#displaying-configuration-data)
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27 | - [Installation Steps in Detail](#installation-steps-in-detail)
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28 | - [Configure](#configure-openssl)
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29 | - [Build](#build-openssl)
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30 | - [Test](#test-openssl)
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31 | - [Install](#install-openssl)
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32 | - [Advanced Build Options](#advanced-build-options)
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33 | - [Environment Variables](#environment-variables)
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34 | - [Makefile Targets](#makefile-targets)
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35 | - [Running Selected Tests](#running-selected-tests)
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36 | - [Troubleshooting](#troubleshooting)
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37 | - [Configuration Problems](#configuration-problems)
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38 | - [Build Failures](#build-failures)
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39 | - [Test Failures](#test-failures)
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40 | - [Notes](#notes)
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41 | - [Notes on multi-threading](#notes-on-multi-threading)
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42 | - [Notes on shared libraries](#notes-on-shared-libraries)
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43 | - [Notes on random number generation](#notes-on-random-number-generation)
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44 | - [Notes on assembler modules compilation](#notes-on-assembler-modules-compilation)
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45 |
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46 | Prerequisites
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47 | =============
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48 |
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49 | To install OpenSSL, you will need:
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50 |
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51 | * A "make" implementation
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52 | * Perl 5 with core modules (please read [NOTES-PERL.md](NOTES-PERL.md))
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53 | * The Perl module `Text::Template` (please read [NOTES-PERL.md](NOTES-PERL.md))
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54 | * an ANSI C compiler
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55 | * a development environment in the form of development libraries and C
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56 | header files
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57 | * a supported operating system
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58 |
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59 | For additional platform specific requirements, solutions to specific
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60 | issues and other details, please read one of these:
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61 |
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62 | * [Notes for UNIX-like platforms](NOTES-UNIX.md)
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63 | * [Notes for Android platforms](NOTES-ANDROID.md)
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64 | * [Notes for Windows platforms](NOTES-WINDOWS.md)
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65 | * [Notes for the DOS platform with DJGPP](NOTES-DJGPP.md)
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66 | * [Notes for the OpenVMS platform](NOTES-VMS.md)
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67 | * [Notes on Perl](NOTES-PERL.md)
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68 | * [Notes on Valgrind](NOTES-VALGRIND.md)
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69 |
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70 | Notational conventions
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71 | ======================
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72 |
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73 | Throughout this document, we use the following conventions.
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74 |
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75 | Commands
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76 | --------
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77 |
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78 | Any line starting with a dollar sign is a command line.
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79 |
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80 | $ command
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81 |
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82 | The dollar sign indicates the shell prompt and is not to be entered as
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83 | part of the command.
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84 |
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85 | Choices
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86 | -------
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87 |
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88 | Several words in curly braces separated by pipe characters indicate a
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89 | **mandatory choice**, to be replaced with one of the given words.
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90 | For example, the line
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91 |
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92 | $ echo { WORD1 | WORD2 | WORD3 }
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93 |
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94 | represents one of the following three commands
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95 |
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96 | $ echo WORD1
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97 | - or -
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98 | $ echo WORD2
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99 | - or -
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100 | $ echo WORD3
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101 |
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102 | One or several words in square brackets separated by pipe characters
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103 | denote an **optional choice**. It is similar to the mandatory choice,
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104 | but it can also be omitted entirely.
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105 |
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106 | So the line
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107 |
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108 | $ echo [ WORD1 | WORD2 | WORD3 ]
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109 |
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110 | represents one of the four commands
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111 |
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112 | $ echo WORD1
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113 | - or -
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114 | $ echo WORD2
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115 | - or -
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116 | $ echo WORD3
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117 | - or -
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118 | $ echo
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119 |
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120 | Arguments
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121 | ---------
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122 |
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123 | **Mandatory arguments** are enclosed in double curly braces.
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124 | A simple example would be
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125 |
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126 | $ type {{ filename }}
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127 |
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128 | which is to be understood to use the command `type` on some file name
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129 | determined by the user.
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130 |
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131 | **Optional Arguments** are enclosed in double square brackets.
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132 |
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133 | [[ options ]]
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134 |
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135 | Note that the notation assumes spaces around `{`, `}`, `[`, `]`, `{{`, `}}` and
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136 | `[[`, `]]`. This is to differentiate from OpenVMS directory
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137 | specifications, which also use [ and ], but without spaces.
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138 |
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139 | Quick Installation Guide
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140 | ========================
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141 |
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142 | If you just want to get OpenSSL installed without bothering too much
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143 | about the details, here is the short version of how to build and install
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144 | OpenSSL. If any of the following steps fails, please consult the
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145 | [Installation in Detail](#installation-steps-in-detail) section below.
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146 |
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147 | Building OpenSSL
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148 | ----------------
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149 |
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150 | Use the following commands to configure, build and test OpenSSL.
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151 | The testing is optional, but recommended if you intend to install
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152 | OpenSSL for production use.
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153 |
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154 | ### Unix / Linux / macOS
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155 |
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156 | $ ./Configure
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157 | $ make
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158 | $ make test
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159 |
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160 | ### OpenVMS
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161 |
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162 | Use the following commands to build OpenSSL:
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163 |
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164 | $ perl Configure
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165 | $ mms
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166 | $ mms test
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167 |
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168 | ### Windows
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169 |
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170 | If you are using Visual Studio, open a Developer Command Prompt and
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171 | issue the following commands to build OpenSSL.
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172 |
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173 | $ perl Configure
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174 | $ nmake
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175 | $ nmake test
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176 |
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177 | As mentioned in the [Choices](#choices) section, you need to pick one
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178 | of the four Configure targets in the first command.
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179 |
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180 | Most likely you will be using the `VC-WIN64A` target for 64bit Windows
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181 | binaries (AMD64) or `VC-WIN32` for 32bit Windows binaries (X86).
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182 | The other two options are `VC-WIN64I` (Intel IA64, Itanium) and
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183 | `VC-CE` (Windows CE) are rather uncommon nowadays.
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184 |
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185 | Installing OpenSSL
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186 | ------------------
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187 |
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188 | The following commands will install OpenSSL to a default system location.
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189 |
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190 | **Danger Zone:** even if you are impatient, please read the following two
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191 | paragraphs carefully before you install OpenSSL.
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192 |
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193 | For security reasons the default system location is by default not writable
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194 | for unprivileged users. So for the final installation step administrative
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195 | privileges are required. The default system location and the procedure to
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196 | obtain administrative privileges depends on the operating system.
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197 | It is recommended to compile and test OpenSSL with normal user privileges
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198 | and use administrative privileges only for the final installation step.
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199 |
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200 | On some platforms OpenSSL is preinstalled as part of the Operating System.
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201 | In this case it is highly recommended not to overwrite the system versions,
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202 | because other applications or libraries might depend on it.
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203 | To avoid breaking other applications, install your copy of OpenSSL to a
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204 | [different location](#installing-to-a-different-location) which is not in
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205 | the global search path for system libraries.
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206 |
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207 | Finally, if you plan on using the FIPS module, you need to read the
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208 | [Post-installation Notes](#post-installation-notes) further down.
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209 |
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210 | ### Unix / Linux / macOS
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211 |
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212 | Depending on your distribution, you need to run the following command as
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213 | root user or prepend `sudo` to the command:
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214 |
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215 | $ make install
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216 |
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217 | By default, OpenSSL will be installed to
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218 |
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219 | /usr/local
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220 |
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221 | More precisely, the files will be installed into the subdirectories
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222 |
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223 | /usr/local/bin
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224 | /usr/local/lib
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225 | /usr/local/include
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226 | ...
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227 |
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228 | depending on the file type, as it is custom on Unix-like operating systems.
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229 |
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230 | ### OpenVMS
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231 |
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232 | Use the following command to install OpenSSL.
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233 |
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234 | $ mms install
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235 |
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236 | By default, OpenSSL will be installed to
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237 |
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238 | SYS$COMMON:[OPENSSL]
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239 |
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240 | ### Windows
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241 |
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242 | If you are using Visual Studio, open the Developer Command Prompt _elevated_
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243 | and issue the following command.
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244 |
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245 | $ nmake install
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246 |
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247 | The easiest way to elevate the Command Prompt is to press and hold down
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248 | the both the `<CTRL>` and `<SHIFT>` key while clicking the menu item in the
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249 | task menu.
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250 |
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251 | The default installation location is
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252 |
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253 | C:\Program Files\OpenSSL
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254 |
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255 | for native binaries, or
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256 |
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257 | C:\Program Files (x86)\OpenSSL
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258 |
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259 | for 32bit binaries on 64bit Windows (WOW64).
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260 |
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261 | #### Installing to a different location
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262 |
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263 | To install OpenSSL to a different location (for example into your home
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264 | directory for testing purposes) run `Configure` as shown in the following
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265 | examples.
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266 |
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267 | The options `--prefix` and `--openssldir` are explained in further detail in
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268 | [Directories](#directories) below, and the values used here are mere examples.
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269 |
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270 | On Unix:
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271 |
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272 | $ ./Configure --prefix=/opt/openssl --openssldir=/usr/local/ssl
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273 |
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274 | On OpenVMS:
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275 |
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276 | $ perl Configure --prefix=PROGRAM:[INSTALLS] --openssldir=SYS$MANAGER:[OPENSSL]
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277 |
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278 | Note: if you do add options to the configuration command, please make sure
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279 | you've read more than just this Quick Start, such as relevant `NOTES-*` files,
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280 | the options outline below, as configuration options may change the outcome
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281 | in otherwise unexpected ways.
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282 |
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283 | Configuration Options
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284 | =====================
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285 |
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286 | There are several options to `./Configure` to customize the build (note that
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287 | for Windows, the defaults for `--prefix` and `--openssldir` depend on what
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288 | configuration is used and what Windows implementation OpenSSL is built on.
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289 | For more information, see the [Notes for Windows platforms](NOTES-WINDOWS.md).
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290 |
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291 | API Level
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292 | ---------
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293 |
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294 | --api=x.y[.z]
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295 |
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296 | Build the OpenSSL libraries to support the API for the specified version.
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297 | If [no-deprecated](#no-deprecated) is also given, don't build with support
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298 | for deprecated APIs in or below the specified version number. For example,
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299 | adding
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300 |
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301 | --api=1.1.0 no-deprecated
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302 |
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303 | will remove support for all APIs that were deprecated in OpenSSL version
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304 | 1.1.0 or below. This is a rather specialized option for developers.
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305 | If you just intend to remove all deprecated APIs up to the current version
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306 | entirely, just specify [no-deprecated](#no-deprecated).
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307 | If `--api` isn't given, it defaults to the current (minor) OpenSSL version.
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308 |
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309 | Cross Compile Prefix
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310 | --------------------
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311 |
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312 | --cross-compile-prefix=<PREFIX>
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313 |
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314 | The `<PREFIX>` to include in front of commands for your toolchain.
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315 |
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316 | It is likely to have to end with dash, e.g. `a-b-c-` would invoke GNU compiler
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317 | as `a-b-c-gcc`, etc. Unfortunately cross-compiling is too case-specific to put
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318 | together one-size-fits-all instructions. You might have to pass more flags or
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319 | set up environment variables to actually make it work. Android and iOS cases
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320 | are discussed in corresponding `Configurations/15-*.conf` files. But there are
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321 | cases when this option alone is sufficient. For example to build the mingw64
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322 | target on Linux `--cross-compile-prefix=x86_64-w64-mingw32-` works. Naturally
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323 | provided that mingw packages are installed. Today Debian and Ubuntu users
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324 | have option to install a number of prepackaged cross-compilers along with
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325 | corresponding run-time and development packages for "alien" hardware. To give
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326 | another example `--cross-compile-prefix=mipsel-linux-gnu-` suffices in such
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327 | case.
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328 |
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329 | For cross compilation, you must [configure manually](#manual-configuration).
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330 | Also, note that `--openssldir` refers to target's file system, not one you are
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331 | building on.
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332 |
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333 | Build Type
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334 | ----------
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335 |
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336 | --debug
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337 |
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338 | Build OpenSSL with debugging symbols and zero optimization level.
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339 |
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340 | --release
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341 |
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342 | Build OpenSSL without debugging symbols. This is the default.
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343 |
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344 | Directories
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345 | -----------
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346 |
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347 | ### libdir
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348 |
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349 | --libdir=DIR
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350 |
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351 | The name of the directory under the top of the installation directory tree
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352 | (see the `--prefix` option) where libraries will be installed. By default
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353 | this is `lib`. Note that on Windows only static libraries (`*.lib`) will
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354 | be stored in this location. Shared libraries (`*.dll`) will always be
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355 | installed to the `bin` directory.
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356 |
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357 | Some build targets have a multilib postfix set in the build configuration.
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358 | For these targets the default libdir is `lib<multilib-postfix>`. Please use
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359 | `--libdir=lib` to override the libdir if adding the postfix is undesirable.
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360 |
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361 | ### openssldir
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362 |
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363 | --openssldir=DIR
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364 |
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365 | Directory for OpenSSL configuration files, and also the default certificate
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366 | and key store. Defaults are:
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367 |
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368 | Unix: /usr/local/ssl
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369 | Windows: C:\Program Files\Common Files\SSL
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370 | OpenVMS: SYS$COMMON:[OPENSSL-COMMON]
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371 |
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372 | For 32bit Windows applications on Windows 64bit (WOW64), always replace
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373 | `C:\Program Files` by `C:\Program Files (x86)`.
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374 |
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375 | ### prefix
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376 |
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377 | --prefix=DIR
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378 |
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379 | The top of the installation directory tree. Defaults are:
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380 |
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381 | Unix: /usr/local
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382 | Windows: C:\Program Files\OpenSSL
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383 | OpenVMS: SYS$COMMON:[OPENSSL]
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384 |
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385 | Compiler Warnings
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386 | -----------------
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387 |
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388 | --strict-warnings
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389 |
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390 | This is a developer flag that switches on various compiler options recommended
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391 | for OpenSSL development. It only works when using gcc or clang as the compiler.
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392 | If you are developing a patch for OpenSSL then it is recommended that you use
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393 | this option where possible.
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394 |
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395 | ZLib Flags
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396 | ----------
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397 |
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398 | ### with-zlib-include
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399 |
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400 | --with-zlib-include=DIR
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401 |
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402 | The directory for the location of the zlib include file. This option is only
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403 | necessary if [zlib](#zlib) is used and the include file is not
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404 | already on the system include path.
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405 |
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406 | ### with-zlib-lib
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407 |
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408 | --with-zlib-lib=LIB
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409 |
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410 | **On Unix**: this is the directory containing the zlib library.
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411 | If not provided the system library path will be used.
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412 |
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413 | **On Windows:** this is the filename of the zlib library (with or
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414 | without a path). This flag must be provided if the
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415 | [zlib-dynamic](#zlib-dynamic) option is not also used. If `zlib-dynamic` is used
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416 | then this flag is optional and defaults to `ZLIB1` if not provided.
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417 |
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418 | **On VMS:** this is the filename of the zlib library (with or without a path).
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419 | This flag is optional and if not provided then `GNV$LIBZSHR`, `GNV$LIBZSHR32`
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420 | or `GNV$LIBZSHR64` is used by default depending on the pointer size chosen.
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421 |
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422 | Seeding the Random Generator
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423 | ----------------------------
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424 |
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425 | --with-rand-seed=seed1[,seed2,...]
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426 |
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427 | A comma separated list of seeding methods which will be tried by OpenSSL
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428 | in order to obtain random input (a.k.a "entropy") for seeding its
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429 | cryptographically secure random number generator (CSPRNG).
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430 | The current seeding methods are:
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431 |
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432 | ### os
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433 |
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434 | Use a trusted operating system entropy source.
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435 | This is the default method if such an entropy source exists.
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436 |
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437 | ### getrandom
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438 |
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439 | Use the [getrandom(2)][man-getrandom] or equivalent system call.
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440 |
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441 | [man-getrandom]: http://man7.org/linux/man-pages/man2/getrandom.2.html
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442 |
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443 | ### devrandom
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444 |
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445 | Use the first device from the `DEVRANDOM` list which can be opened to read
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446 | random bytes. The `DEVRANDOM` preprocessor constant expands to
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447 |
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448 | "/dev/urandom","/dev/random","/dev/srandom"
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449 |
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450 | on most unix-ish operating systems.
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451 |
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452 | ### egd
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453 |
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454 | Check for an entropy generating daemon.
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455 | This source is ignored by the FIPS provider.
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456 |
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457 | ### rdcpu
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458 |
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459 | Use the `RDSEED` or `RDRAND` command if provided by the CPU.
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460 |
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461 | ### librandom
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462 |
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463 | Use librandom (not implemented yet).
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464 | This source is ignored by the FIPS provider.
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465 |
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466 | ### none
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467 |
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468 | Disable automatic seeding. This is the default on some operating systems where
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469 | no suitable entropy source exists, or no support for it is implemented yet.
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470 | This option is ignored by the FIPS provider.
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471 |
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472 | For more information, see the section [Notes on random number generation][rng]
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473 | at the end of this document.
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474 |
|
---|
475 | [rng]: #notes-on-random-number-generation
|
---|
476 |
|
---|
477 | Setting the FIPS HMAC key
|
---|
478 | -------------------------
|
---|
479 |
|
---|
480 | --fips-key=value
|
---|
481 |
|
---|
482 | As part of its self-test validation, the FIPS module must verify itself
|
---|
483 | by performing a SHA-256 HMAC computation on itself. The default key is
|
---|
484 | the SHA256 value of "the holy handgrenade of antioch" and is sufficient
|
---|
485 | for meeting the FIPS requirements.
|
---|
486 |
|
---|
487 | To change the key to a different value, use this flag. The value should
|
---|
488 | be a hex string no more than 64 characters.
|
---|
489 |
|
---|
490 | Enable and Disable Features
|
---|
491 | ---------------------------
|
---|
492 |
|
---|
493 | Feature options always come in pairs, an option to enable feature
|
---|
494 | `xxxx`, and an option to disable it:
|
---|
495 |
|
---|
496 | [ enable-xxxx | no-xxxx ]
|
---|
497 |
|
---|
498 | Whether a feature is enabled or disabled by default, depends on the feature.
|
---|
499 | In the following list, always the non-default variant is documented: if
|
---|
500 | feature `xxxx` is disabled by default then `enable-xxxx` is documented and
|
---|
501 | if feature `xxxx` is enabled by default then `no-xxxx` is documented.
|
---|
502 |
|
---|
503 | ### no-afalgeng
|
---|
504 |
|
---|
505 | Don't build the AFALG engine.
|
---|
506 |
|
---|
507 | This option will be forced on a platform that does not support AFALG.
|
---|
508 |
|
---|
509 | ### enable-ktls
|
---|
510 |
|
---|
511 | Build with Kernel TLS support.
|
---|
512 |
|
---|
513 | This option will enable the use of the Kernel TLS data-path, which can improve
|
---|
514 | performance and allow for the use of sendfile and splice system calls on
|
---|
515 | TLS sockets. The Kernel may use TLS accelerators if any are available on the
|
---|
516 | system. This option will be forced off on systems that do not support the
|
---|
517 | Kernel TLS data-path.
|
---|
518 |
|
---|
519 | ### enable-asan
|
---|
520 |
|
---|
521 | Build with the Address sanitiser.
|
---|
522 |
|
---|
523 | This is a developer option only. It may not work on all platforms and should
|
---|
524 | never be used in production environments. It will only work when used with
|
---|
525 | gcc or clang and should be used in conjunction with the [no-shared](#no-shared)
|
---|
526 | option.
|
---|
527 |
|
---|
528 | ### enable-acvp-tests
|
---|
529 |
|
---|
530 | Build support for Automated Cryptographic Validation Protocol (ACVP)
|
---|
531 | tests.
|
---|
532 |
|
---|
533 | This is required for FIPS validation purposes. Certain ACVP tests require
|
---|
534 | access to algorithm internals that are not normally accessible.
|
---|
535 | Additional information related to ACVP can be found at
|
---|
536 | <https://github.com/usnistgov/ACVP>.
|
---|
537 |
|
---|
538 | ### no-asm
|
---|
539 |
|
---|
540 | Do not use assembler code.
|
---|
541 |
|
---|
542 | This should be viewed as debugging/troubleshooting option rather than for
|
---|
543 | production use. On some platforms a small amount of assembler code may still
|
---|
544 | be used even with this option.
|
---|
545 |
|
---|
546 | ### no-async
|
---|
547 |
|
---|
548 | Do not build support for async operations.
|
---|
549 |
|
---|
550 | ### no-autoalginit
|
---|
551 |
|
---|
552 | Don't automatically load all supported ciphers and digests.
|
---|
553 |
|
---|
554 | Typically OpenSSL will make available all of its supported ciphers and digests.
|
---|
555 | For a statically linked application this may be undesirable if small executable
|
---|
556 | size is an objective. This only affects libcrypto. Ciphers and digests will
|
---|
557 | have to be loaded manually using `EVP_add_cipher()` and `EVP_add_digest()`
|
---|
558 | if this option is used. This option will force a non-shared build.
|
---|
559 |
|
---|
560 | ### no-autoerrinit
|
---|
561 |
|
---|
562 | Don't automatically load all libcrypto/libssl error strings.
|
---|
563 |
|
---|
564 | Typically OpenSSL will automatically load human readable error strings. For a
|
---|
565 | statically linked application this may be undesirable if small executable size
|
---|
566 | is an objective.
|
---|
567 |
|
---|
568 | ### no-autoload-config
|
---|
569 |
|
---|
570 | Don't automatically load the default `openssl.cnf` file.
|
---|
571 |
|
---|
572 | Typically OpenSSL will automatically load a system config file which configures
|
---|
573 | default SSL options.
|
---|
574 |
|
---|
575 | ### enable-buildtest-c++
|
---|
576 |
|
---|
577 | While testing, generate C++ buildtest files that simply check that the public
|
---|
578 | OpenSSL header files are usable standalone with C++.
|
---|
579 |
|
---|
580 | Enabling this option demands extra care. For any compiler flag given directly
|
---|
581 | as configuration option, you must ensure that it's valid for both the C and
|
---|
582 | the C++ compiler. If not, the C++ build test will most likely break. As an
|
---|
583 | alternative, you can use the language specific variables, `CFLAGS` and `CXXFLAGS`.
|
---|
584 |
|
---|
585 | ### --banner=text
|
---|
586 |
|
---|
587 | Use the specified text instead of the default banner at the end of
|
---|
588 | configuration.
|
---|
589 |
|
---|
590 | ### --w
|
---|
591 |
|
---|
592 | On platforms where the choice of 32-bit or 64-bit architecture
|
---|
593 | is not explicitly specified, `Configure` will print a warning
|
---|
594 | message and wait for a few seconds to let you interrupt the
|
---|
595 | configuration. Using this flag skips the wait.
|
---|
596 |
|
---|
597 | ### no-bulk
|
---|
598 |
|
---|
599 | Build only some minimal set of features.
|
---|
600 | This is a developer option used internally for CI build tests of the project.
|
---|
601 |
|
---|
602 | ### no-cached-fetch
|
---|
603 |
|
---|
604 | Never cache algorithms when they are fetched from a provider. Normally, a
|
---|
605 | provider indicates if the algorithms it supplies can be cached or not. Using
|
---|
606 | this option will reduce run-time memory usage but it also introduces a
|
---|
607 | significant performance penalty. This option is primarily designed to help
|
---|
608 | with detecting incorrect reference counting.
|
---|
609 |
|
---|
610 | ### no-capieng
|
---|
611 |
|
---|
612 | Don't build the CAPI engine.
|
---|
613 |
|
---|
614 | This option will be forced if on a platform that does not support CAPI.
|
---|
615 |
|
---|
616 | ### no-cmp
|
---|
617 |
|
---|
618 | Don't build support for Certificate Management Protocol (CMP)
|
---|
619 | and Certificate Request Message Format (CRMF).
|
---|
620 |
|
---|
621 | ### no-cms
|
---|
622 |
|
---|
623 | Don't build support for Cryptographic Message Syntax (CMS).
|
---|
624 |
|
---|
625 | ### no-comp
|
---|
626 |
|
---|
627 | Don't build support for SSL/TLS compression.
|
---|
628 |
|
---|
629 | If this option is enabled (the default), then compression will only work if
|
---|
630 | the zlib or `zlib-dynamic` options are also chosen.
|
---|
631 |
|
---|
632 | ### enable-crypto-mdebug
|
---|
633 |
|
---|
634 | This now only enables the `failed-malloc` feature.
|
---|
635 |
|
---|
636 | ### enable-crypto-mdebug-backtrace
|
---|
637 |
|
---|
638 | This is a no-op; the project uses the compiler's address/leak sanitizer instead.
|
---|
639 |
|
---|
640 | ### no-ct
|
---|
641 |
|
---|
642 | Don't build support for Certificate Transparency (CT).
|
---|
643 |
|
---|
644 | ### no-deprecated
|
---|
645 |
|
---|
646 | Don't build with support for deprecated APIs up until and including the version
|
---|
647 | given with `--api` (or the current version, if `--api` wasn't specified).
|
---|
648 |
|
---|
649 | ### no-dgram
|
---|
650 |
|
---|
651 | Don't build support for datagram based BIOs.
|
---|
652 |
|
---|
653 | Selecting this option will also force the disabling of DTLS.
|
---|
654 |
|
---|
655 | ### no-dso
|
---|
656 |
|
---|
657 | Don't build support for loading Dynamic Shared Objects (DSO)
|
---|
658 |
|
---|
659 | ### enable-devcryptoeng
|
---|
660 |
|
---|
661 | Build the `/dev/crypto` engine.
|
---|
662 |
|
---|
663 | This option is automatically selected on the BSD platform, in which case it can
|
---|
664 | be disabled with `no-devcryptoeng`.
|
---|
665 |
|
---|
666 | ### no-dynamic-engine
|
---|
667 |
|
---|
668 | Don't build the dynamically loaded engines.
|
---|
669 |
|
---|
670 | This only has an effect in a shared build.
|
---|
671 |
|
---|
672 | ### no-ec
|
---|
673 |
|
---|
674 | Don't build support for Elliptic Curves.
|
---|
675 |
|
---|
676 | ### no-ec2m
|
---|
677 |
|
---|
678 | Don't build support for binary Elliptic Curves
|
---|
679 |
|
---|
680 | ### enable-ec_nistp_64_gcc_128
|
---|
681 |
|
---|
682 | Enable support for optimised implementations of some commonly used NIST
|
---|
683 | elliptic curves.
|
---|
684 |
|
---|
685 | This option is only supported on platforms:
|
---|
686 |
|
---|
687 | - with little-endian storage of non-byte types
|
---|
688 | - that tolerate misaligned memory references
|
---|
689 | - where the compiler:
|
---|
690 | - supports the non-standard type `__uint128_t`
|
---|
691 | - defines the built-in macro `__SIZEOF_INT128__`
|
---|
692 |
|
---|
693 | ### enable-egd
|
---|
694 |
|
---|
695 | Build support for gathering entropy from the Entropy Gathering Daemon (EGD).
|
---|
696 |
|
---|
697 | ### no-engine
|
---|
698 |
|
---|
699 | Don't build support for loading engines.
|
---|
700 |
|
---|
701 | ### no-err
|
---|
702 |
|
---|
703 | Don't compile in any error strings.
|
---|
704 |
|
---|
705 | ### enable-external-tests
|
---|
706 |
|
---|
707 | Enable building of integration with external test suites.
|
---|
708 |
|
---|
709 | This is a developer option and may not work on all platforms. The following
|
---|
710 | external test suites are currently supported:
|
---|
711 |
|
---|
712 | - GOST engine test suite
|
---|
713 | - Python PYCA/Cryptography test suite
|
---|
714 | - krb5 test suite
|
---|
715 |
|
---|
716 | See the file [test/README-external.md](test/README-external.md)
|
---|
717 | for further details.
|
---|
718 |
|
---|
719 | ### no-filenames
|
---|
720 |
|
---|
721 | Don't compile in filename and line number information (e.g. for errors and
|
---|
722 | memory allocation).
|
---|
723 |
|
---|
724 | ### enable-fips
|
---|
725 |
|
---|
726 | Build (and install) the FIPS provider
|
---|
727 |
|
---|
728 | ### no-fips-securitychecks
|
---|
729 |
|
---|
730 | Don't perform FIPS module run-time checks related to enforcement of security
|
---|
731 | parameters such as minimum security strength of keys.
|
---|
732 |
|
---|
733 | ### enable-fuzz-libfuzzer, enable-fuzz-afl
|
---|
734 |
|
---|
735 | Build with support for fuzzing using either libfuzzer or AFL.
|
---|
736 |
|
---|
737 | These are developer options only. They may not work on all platforms and
|
---|
738 | should never be used in production environments.
|
---|
739 |
|
---|
740 | See the file [fuzz/README.md](fuzz/README.md) for further details.
|
---|
741 |
|
---|
742 | ### no-gost
|
---|
743 |
|
---|
744 | Don't build support for GOST based ciphersuites.
|
---|
745 |
|
---|
746 | Note that if this feature is enabled then GOST ciphersuites are only available
|
---|
747 | if the GOST algorithms are also available through loading an externally supplied
|
---|
748 | engine.
|
---|
749 |
|
---|
750 | ### no-legacy
|
---|
751 |
|
---|
752 | Don't build the legacy provider.
|
---|
753 |
|
---|
754 | Disabling this also disables the legacy algorithms: MD2 (already disabled by default).
|
---|
755 |
|
---|
756 | ### no-makedepend
|
---|
757 |
|
---|
758 | Don't generate dependencies.
|
---|
759 |
|
---|
760 | ### no-module
|
---|
761 |
|
---|
762 | Don't build any dynamically loadable engines.
|
---|
763 |
|
---|
764 | This also implies `no-dynamic-engine`.
|
---|
765 |
|
---|
766 | ### no-multiblock
|
---|
767 |
|
---|
768 | Don't build support for writing multiple records in one go in libssl
|
---|
769 |
|
---|
770 | Note: this is a different capability to the pipelining functionality.
|
---|
771 |
|
---|
772 | ### no-nextprotoneg
|
---|
773 |
|
---|
774 | Don't build support for the Next Protocol Negotiation (NPN) TLS extension.
|
---|
775 |
|
---|
776 | ### no-ocsp
|
---|
777 |
|
---|
778 | Don't build support for Online Certificate Status Protocol (OCSP).
|
---|
779 |
|
---|
780 | ### no-padlockeng
|
---|
781 |
|
---|
782 | Don't build the padlock engine.
|
---|
783 |
|
---|
784 | ### no-hw-padlock
|
---|
785 |
|
---|
786 | As synonym for `no-padlockeng`. Deprecated and should not be used.
|
---|
787 |
|
---|
788 | ### no-pic
|
---|
789 |
|
---|
790 | Don't build with support for Position Independent Code.
|
---|
791 |
|
---|
792 | ### no-pinshared
|
---|
793 |
|
---|
794 | Don't pin the shared libraries.
|
---|
795 |
|
---|
796 | By default OpenSSL will attempt to stay in memory until the process exits.
|
---|
797 | This is so that libcrypto and libssl can be properly cleaned up automatically
|
---|
798 | via an `atexit()` handler. The handler is registered by libcrypto and cleans
|
---|
799 | up both libraries. On some platforms the `atexit()` handler will run on unload of
|
---|
800 | libcrypto (if it has been dynamically loaded) rather than at process exit. This
|
---|
801 | option can be used to stop OpenSSL from attempting to stay in memory until the
|
---|
802 | process exits. This could lead to crashes if either libcrypto or libssl have
|
---|
803 | already been unloaded at the point that the atexit handler is invoked, e.g. on a
|
---|
804 | platform which calls `atexit()` on unload of the library, and libssl is unloaded
|
---|
805 | before libcrypto then a crash is likely to happen. Applications can suppress
|
---|
806 | running of the `atexit()` handler at run time by using the
|
---|
807 | `OPENSSL_INIT_NO_ATEXIT` option to `OPENSSL_init_crypto()`.
|
---|
808 | See the man page for it for further details.
|
---|
809 |
|
---|
810 | ### no-posix-io
|
---|
811 |
|
---|
812 | Don't use POSIX IO capabilities.
|
---|
813 |
|
---|
814 | ### no-psk
|
---|
815 |
|
---|
816 | Don't build support for Pre-Shared Key based ciphersuites.
|
---|
817 |
|
---|
818 | ### no-rdrand
|
---|
819 |
|
---|
820 | Don't use hardware RDRAND capabilities.
|
---|
821 |
|
---|
822 | ### no-rfc3779
|
---|
823 |
|
---|
824 | Don't build support for RFC3779, "X.509 Extensions for IP Addresses and
|
---|
825 | AS Identifiers".
|
---|
826 |
|
---|
827 | ### sctp
|
---|
828 |
|
---|
829 | Build support for Stream Control Transmission Protocol (SCTP).
|
---|
830 |
|
---|
831 | ### no-shared
|
---|
832 |
|
---|
833 | Do not create shared libraries, only static ones.
|
---|
834 |
|
---|
835 | See [Notes on shared libraries](#notes-on-shared-libraries) below.
|
---|
836 |
|
---|
837 | ### no-sock
|
---|
838 |
|
---|
839 | Don't build support for socket BIOs.
|
---|
840 |
|
---|
841 | ### no-srp
|
---|
842 |
|
---|
843 | Don't build support for Secure Remote Password (SRP) protocol or
|
---|
844 | SRP based ciphersuites.
|
---|
845 |
|
---|
846 | ### no-srtp
|
---|
847 |
|
---|
848 | Don't build Secure Real-Time Transport Protocol (SRTP) support.
|
---|
849 |
|
---|
850 | ### no-sse2
|
---|
851 |
|
---|
852 | Exclude SSE2 code paths from 32-bit x86 assembly modules.
|
---|
853 |
|
---|
854 | Normally SSE2 extension is detected at run-time, but the decision whether or not
|
---|
855 | the machine code will be executed is taken solely on CPU capability vector. This
|
---|
856 | means that if you happen to run OS kernel which does not support SSE2 extension
|
---|
857 | on Intel P4 processor, then your application might be exposed to "illegal
|
---|
858 | instruction" exception. There might be a way to enable support in kernel, e.g.
|
---|
859 | FreeBSD kernel can be compiled with `CPU_ENABLE_SSE`, and there is a way to
|
---|
860 | disengage SSE2 code paths upon application start-up, but if you aim for wider
|
---|
861 | "audience" running such kernel, consider `no-sse2`. Both the `386` and `no-asm`
|
---|
862 | options imply `no-sse2`.
|
---|
863 |
|
---|
864 | ### no-ssl-trace
|
---|
865 |
|
---|
866 | Don't build with SSL Trace capabilities.
|
---|
867 |
|
---|
868 | This removes the `-trace` option from `s_client` and `s_server`, and omits the
|
---|
869 | `SSL_trace()` function from libssl.
|
---|
870 |
|
---|
871 | Disabling `ssl-trace` may provide a small reduction in libssl binary size.
|
---|
872 |
|
---|
873 | ### no-static-engine
|
---|
874 |
|
---|
875 | Don't build the statically linked engines.
|
---|
876 |
|
---|
877 | This only has an impact when not built "shared".
|
---|
878 |
|
---|
879 | ### no-stdio
|
---|
880 |
|
---|
881 | Don't use anything from the C header file `stdio.h` that makes use of the `FILE`
|
---|
882 | type. Only libcrypto and libssl can be built in this way. Using this option will
|
---|
883 | suppress building the command line applications. Additionally, since the OpenSSL
|
---|
884 | tests also use the command line applications, the tests will also be skipped.
|
---|
885 |
|
---|
886 | ### no-tests
|
---|
887 |
|
---|
888 | Don't build test programs or run any tests.
|
---|
889 |
|
---|
890 | ### no-threads
|
---|
891 |
|
---|
892 | Don't build with support for multi-threaded applications.
|
---|
893 |
|
---|
894 | ### threads
|
---|
895 |
|
---|
896 | Build with support for multi-threaded applications. Most platforms will enable
|
---|
897 | this by default. However, if on a platform where this is not the case then this
|
---|
898 | will usually require additional system-dependent options!
|
---|
899 |
|
---|
900 | See [Notes on multi-threading](#notes-on-multi-threading) below.
|
---|
901 |
|
---|
902 | ### enable-trace
|
---|
903 |
|
---|
904 | Build with support for the integrated tracing api.
|
---|
905 |
|
---|
906 | See manual pages OSSL_trace_set_channel(3) and OSSL_trace_enabled(3) for details.
|
---|
907 |
|
---|
908 | ### no-ts
|
---|
909 |
|
---|
910 | Don't build Time Stamping (TS) Authority support.
|
---|
911 |
|
---|
912 | ### enable-ubsan
|
---|
913 |
|
---|
914 | Build with the Undefined Behaviour sanitiser (UBSAN).
|
---|
915 |
|
---|
916 | This is a developer option only. It may not work on all platforms and should
|
---|
917 | never be used in production environments. It will only work when used with
|
---|
918 | gcc or clang and should be used in conjunction with the `-DPEDANTIC` option
|
---|
919 | (or the `--strict-warnings` option).
|
---|
920 |
|
---|
921 | ### no-ui-console
|
---|
922 |
|
---|
923 | Don't build with the User Interface (UI) console method
|
---|
924 |
|
---|
925 | The User Interface console method enables text based console prompts.
|
---|
926 |
|
---|
927 | ### enable-unit-test
|
---|
928 |
|
---|
929 | Enable additional unit test APIs.
|
---|
930 |
|
---|
931 | This should not typically be used in production deployments.
|
---|
932 |
|
---|
933 | ### no-uplink
|
---|
934 |
|
---|
935 | Don't build support for UPLINK interface.
|
---|
936 |
|
---|
937 | ### enable-weak-ssl-ciphers
|
---|
938 |
|
---|
939 | Build support for SSL/TLS ciphers that are considered "weak"
|
---|
940 |
|
---|
941 | Enabling this includes for example the RC4 based ciphersuites.
|
---|
942 |
|
---|
943 | ### zlib
|
---|
944 |
|
---|
945 | Build with support for zlib compression/decompression.
|
---|
946 |
|
---|
947 | ### zlib-dynamic
|
---|
948 |
|
---|
949 | Like the zlib option, but has OpenSSL load the zlib library dynamically
|
---|
950 | when needed.
|
---|
951 |
|
---|
952 | This is only supported on systems where loading of shared libraries is supported.
|
---|
953 |
|
---|
954 | ### 386
|
---|
955 |
|
---|
956 | In 32-bit x86 builds, use the 80386 instruction set only in assembly modules
|
---|
957 |
|
---|
958 | The default x86 code is more efficient, but requires at least an 486 processor.
|
---|
959 | Note: This doesn't affect compiler generated code, so this option needs to be
|
---|
960 | accompanied by a corresponding compiler-specific option.
|
---|
961 |
|
---|
962 | ### no-{protocol}
|
---|
963 |
|
---|
964 | no-{ssl|ssl3|tls|tls1|tls1_1|tls1_2|tls1_3|dtls|dtls1|dtls1_2}
|
---|
965 |
|
---|
966 | Don't build support for negotiating the specified SSL/TLS protocol.
|
---|
967 |
|
---|
968 | If `no-tls` is selected then all of `tls1`, `tls1_1`, `tls1_2` and `tls1_3`
|
---|
969 | are disabled.
|
---|
970 | Similarly `no-dtls` will disable `dtls1` and `dtls1_2`. The `no-ssl` option is
|
---|
971 | synonymous with `no-ssl3`. Note this only affects version negotiation.
|
---|
972 | OpenSSL will still provide the methods for applications to explicitly select
|
---|
973 | the individual protocol versions.
|
---|
974 |
|
---|
975 | ### no-{protocol}-method
|
---|
976 |
|
---|
977 | no-{ssl|ssl3|tls|tls1|tls1_1|tls1_2|tls1_3|dtls|dtls1|dtls1_2}-method
|
---|
978 |
|
---|
979 | Analogous to `no-{protocol}` but in addition do not build the methods for
|
---|
980 | applications to explicitly select individual protocol versions. Note that there
|
---|
981 | is no `no-tls1_3-method` option because there is no application method for
|
---|
982 | TLSv1.3.
|
---|
983 |
|
---|
984 | Using individual protocol methods directly is deprecated. Applications should
|
---|
985 | use `TLS_method()` instead.
|
---|
986 |
|
---|
987 | ### enable-{algorithm}
|
---|
988 |
|
---|
989 | enable-{md2|rc5}
|
---|
990 |
|
---|
991 | Build with support for the specified algorithm.
|
---|
992 |
|
---|
993 | ### no-{algorithm}
|
---|
994 |
|
---|
995 | no-{aria|bf|blake2|camellia|cast|chacha|cmac|
|
---|
996 | des|dh|dsa|ecdh|ecdsa|idea|md4|mdc2|ocb|
|
---|
997 | poly1305|rc2|rc4|rmd160|scrypt|seed|
|
---|
998 | siphash|siv|sm2|sm3|sm4|whirlpool}
|
---|
999 |
|
---|
1000 | Build without support for the specified algorithm.
|
---|
1001 |
|
---|
1002 | The `ripemd` algorithm is deprecated and if used is synonymous with `rmd160`.
|
---|
1003 |
|
---|
1004 | ### Compiler-specific options
|
---|
1005 |
|
---|
1006 | -Dxxx, -Ixxx, -Wp, -lxxx, -Lxxx, -Wl, -rpath, -R, -framework, -static
|
---|
1007 |
|
---|
1008 | These system specific options will be recognised and passed through to the
|
---|
1009 | compiler to allow you to define preprocessor symbols, specify additional
|
---|
1010 | libraries, library directories or other compiler options. It might be worth
|
---|
1011 | noting that some compilers generate code specifically for processor the
|
---|
1012 | compiler currently executes on. This is not necessarily what you might have
|
---|
1013 | in mind, since it might be unsuitable for execution on other, typically older,
|
---|
1014 | processor. Consult your compiler documentation.
|
---|
1015 |
|
---|
1016 | Take note of the [Environment Variables](#environment-variables) documentation
|
---|
1017 | below and how these flags interact with those variables.
|
---|
1018 |
|
---|
1019 | -xxx, +xxx, /xxx
|
---|
1020 |
|
---|
1021 | Additional options that are not otherwise recognised are passed through as
|
---|
1022 | they are to the compiler as well. Unix-style options beginning with a
|
---|
1023 | `-` or `+` and Windows-style options beginning with a `/` are recognized.
|
---|
1024 | Again, consult your compiler documentation.
|
---|
1025 |
|
---|
1026 | If the option contains arguments separated by spaces, then the URL-style
|
---|
1027 | notation `%20` can be used for the space character in order to avoid having
|
---|
1028 | to quote the option. For example, `-opt%20arg` gets expanded to `-opt arg`.
|
---|
1029 | In fact, any ASCII character can be encoded as %xx using its hexadecimal
|
---|
1030 | encoding.
|
---|
1031 |
|
---|
1032 | Take note of the [Environment Variables](#environment-variables) documentation
|
---|
1033 | below and how these flags interact with those variables.
|
---|
1034 |
|
---|
1035 | ### Environment Variables
|
---|
1036 |
|
---|
1037 | VAR=value
|
---|
1038 |
|
---|
1039 | Assign the given value to the environment variable `VAR` for `Configure`.
|
---|
1040 |
|
---|
1041 | These work just like normal environment variable assignments, but are supported
|
---|
1042 | on all platforms and are confined to the configuration scripts only.
|
---|
1043 | These assignments override the corresponding value in the inherited environment,
|
---|
1044 | if there is one.
|
---|
1045 |
|
---|
1046 | The following variables are used as "`make` variables" and can be used as an
|
---|
1047 | alternative to giving preprocessor, compiler and linker options directly as
|
---|
1048 | configuration. The following variables are supported:
|
---|
1049 |
|
---|
1050 | AR The static library archiver.
|
---|
1051 | ARFLAGS Flags for the static library archiver.
|
---|
1052 | AS The assembler compiler.
|
---|
1053 | ASFLAGS Flags for the assembler compiler.
|
---|
1054 | CC The C compiler.
|
---|
1055 | CFLAGS Flags for the C compiler.
|
---|
1056 | CXX The C++ compiler.
|
---|
1057 | CXXFLAGS Flags for the C++ compiler.
|
---|
1058 | CPP The C/C++ preprocessor.
|
---|
1059 | CPPFLAGS Flags for the C/C++ preprocessor.
|
---|
1060 | CPPDEFINES List of CPP macro definitions, separated
|
---|
1061 | by a platform specific character (':' or
|
---|
1062 | space for Unix, ';' for Windows, ',' for
|
---|
1063 | VMS). This can be used instead of using
|
---|
1064 | -D (or what corresponds to that on your
|
---|
1065 | compiler) in CPPFLAGS.
|
---|
1066 | CPPINCLUDES List of CPP inclusion directories, separated
|
---|
1067 | the same way as for CPPDEFINES. This can
|
---|
1068 | be used instead of -I (or what corresponds
|
---|
1069 | to that on your compiler) in CPPFLAGS.
|
---|
1070 | HASHBANGPERL Perl invocation to be inserted after '#!'
|
---|
1071 | in public perl scripts (only relevant on
|
---|
1072 | Unix).
|
---|
1073 | LD The program linker (not used on Unix, $(CC)
|
---|
1074 | is used there).
|
---|
1075 | LDFLAGS Flags for the shared library, DSO and
|
---|
1076 | program linker.
|
---|
1077 | LDLIBS Extra libraries to use when linking.
|
---|
1078 | Takes the form of a space separated list
|
---|
1079 | of library specifications on Unix and
|
---|
1080 | Windows, and as a comma separated list of
|
---|
1081 | libraries on VMS.
|
---|
1082 | RANLIB The library archive indexer.
|
---|
1083 | RC The Windows resource compiler.
|
---|
1084 | RCFLAGS Flags for the Windows resource compiler.
|
---|
1085 | RM The command to remove files and directories.
|
---|
1086 |
|
---|
1087 | These cannot be mixed with compiling/linking flags given on the command line.
|
---|
1088 | In other words, something like this isn't permitted.
|
---|
1089 |
|
---|
1090 | $ ./Configure -DFOO CPPFLAGS=-DBAR -DCOOKIE
|
---|
1091 |
|
---|
1092 | Backward compatibility note:
|
---|
1093 |
|
---|
1094 | To be compatible with older configuration scripts, the environment variables
|
---|
1095 | are ignored if compiling/linking flags are given on the command line, except
|
---|
1096 | for the following:
|
---|
1097 |
|
---|
1098 | AR, CC, CXX, CROSS_COMPILE, HASHBANGPERL, PERL, RANLIB, RC, and WINDRES
|
---|
1099 |
|
---|
1100 | For example, the following command will not see `-DBAR`:
|
---|
1101 |
|
---|
1102 | $ CPPFLAGS=-DBAR ./Configure -DCOOKIE
|
---|
1103 |
|
---|
1104 | However, the following will see both set variables:
|
---|
1105 |
|
---|
1106 | $ CC=gcc CROSS_COMPILE=x86_64-w64-mingw32- ./Configure -DCOOKIE
|
---|
1107 |
|
---|
1108 | If `CC` is set, it is advisable to also set `CXX` to ensure both the C and C++
|
---|
1109 | compiler are in the same "family". This becomes relevant with
|
---|
1110 | `enable-external-tests` and `enable-buildtest-c++`.
|
---|
1111 |
|
---|
1112 | ### Reconfigure
|
---|
1113 |
|
---|
1114 | reconf
|
---|
1115 | reconfigure
|
---|
1116 |
|
---|
1117 | Reconfigure from earlier data.
|
---|
1118 |
|
---|
1119 | This fetches the previous command line options and environment from data
|
---|
1120 | saved in `configdata.pm` and runs the configuration process again, using
|
---|
1121 | these options and environment. Note: NO other option is permitted together
|
---|
1122 | with `reconf`. Note: The original configuration saves away values for ALL
|
---|
1123 | environment variables that were used, and if they weren't defined, they are
|
---|
1124 | still saved away with information that they weren't originally defined.
|
---|
1125 | This information takes precedence over environment variables that are
|
---|
1126 | defined when reconfiguring.
|
---|
1127 |
|
---|
1128 | Displaying configuration data
|
---|
1129 | -----------------------------
|
---|
1130 |
|
---|
1131 | The configuration script itself will say very little, and finishes by
|
---|
1132 | creating `configdata.pm`. This perl module can be loaded by other scripts
|
---|
1133 | to find all the configuration data, and it can also be used as a script to
|
---|
1134 | display all sorts of configuration data in a human readable form.
|
---|
1135 |
|
---|
1136 | For more information, please do:
|
---|
1137 |
|
---|
1138 | $ ./configdata.pm --help # Unix
|
---|
1139 |
|
---|
1140 | or
|
---|
1141 |
|
---|
1142 | $ perl configdata.pm --help # Windows and VMS
|
---|
1143 |
|
---|
1144 | Installation Steps in Detail
|
---|
1145 | ============================
|
---|
1146 |
|
---|
1147 | Configure OpenSSL
|
---|
1148 | -----------------
|
---|
1149 |
|
---|
1150 | ### Automatic Configuration
|
---|
1151 |
|
---|
1152 | In previous version, the `config` script determined the platform type and
|
---|
1153 | compiler and then called `Configure`. Starting with this release, they are
|
---|
1154 | the same.
|
---|
1155 |
|
---|
1156 | #### Unix / Linux / macOS
|
---|
1157 |
|
---|
1158 | $ ./Configure [[ options ]]
|
---|
1159 |
|
---|
1160 | #### OpenVMS
|
---|
1161 |
|
---|
1162 | $ perl Configure [[ options ]]
|
---|
1163 |
|
---|
1164 | #### Windows
|
---|
1165 |
|
---|
1166 | $ perl Configure [[ options ]]
|
---|
1167 |
|
---|
1168 | ### Manual Configuration
|
---|
1169 |
|
---|
1170 | OpenSSL knows about a range of different operating system, hardware and
|
---|
1171 | compiler combinations. To see the ones it knows about, run
|
---|
1172 |
|
---|
1173 | $ ./Configure LIST # Unix
|
---|
1174 |
|
---|
1175 | or
|
---|
1176 |
|
---|
1177 | $ perl Configure LIST # All other platforms
|
---|
1178 |
|
---|
1179 | For the remainder of this text, the Unix form will be used in all examples.
|
---|
1180 | Please use the appropriate form for your platform.
|
---|
1181 |
|
---|
1182 | Pick a suitable name from the list that matches your system. For most
|
---|
1183 | operating systems there is a choice between using cc or gcc.
|
---|
1184 | When you have identified your system (and if necessary compiler) use this
|
---|
1185 | name as the argument to `Configure`. For example, a `linux-elf` user would
|
---|
1186 | run:
|
---|
1187 |
|
---|
1188 | $ ./Configure linux-elf [[ options ]]
|
---|
1189 |
|
---|
1190 | ### Creating your own Configuration
|
---|
1191 |
|
---|
1192 | If your system isn't listed, you will have to create a configuration
|
---|
1193 | file named `Configurations/{{ something }}.conf` and add the correct
|
---|
1194 | configuration for your system. See the available configs as examples
|
---|
1195 | and read [Configurations/README.md](Configurations/README.md) and
|
---|
1196 | [Configurations/README-design.md](Configurations/README-design.md)
|
---|
1197 | for more information.
|
---|
1198 |
|
---|
1199 | The generic configurations `cc` or `gcc` should usually work on 32 bit
|
---|
1200 | Unix-like systems.
|
---|
1201 |
|
---|
1202 | `Configure` creates a build file (`Makefile` on Unix, `makefile` on Windows
|
---|
1203 | and `descrip.mms` on OpenVMS) from a suitable template in `Configurations/`,
|
---|
1204 | and defines various macros in `include/openssl/configuration.h` (generated
|
---|
1205 | from `include/openssl/configuration.h.in`.
|
---|
1206 |
|
---|
1207 | ### Out of Tree Builds
|
---|
1208 |
|
---|
1209 | OpenSSL can be configured to build in a build directory separate from the
|
---|
1210 | source code directory. It's done by placing yourself in some other
|
---|
1211 | directory and invoking the configuration commands from there.
|
---|
1212 |
|
---|
1213 | #### Unix example
|
---|
1214 |
|
---|
1215 | $ mkdir /var/tmp/openssl-build
|
---|
1216 | $ cd /var/tmp/openssl-build
|
---|
1217 | $ /PATH/TO/OPENSSL/SOURCE/Configure [[ options ]]
|
---|
1218 |
|
---|
1219 | #### OpenVMS example
|
---|
1220 |
|
---|
1221 | $ set default sys$login:
|
---|
1222 | $ create/dir [.tmp.openssl-build]
|
---|
1223 | $ set default [.tmp.openssl-build]
|
---|
1224 | $ perl D:[PATH.TO.OPENSSL.SOURCE]Configure [[ options ]]
|
---|
1225 |
|
---|
1226 | #### Windows example
|
---|
1227 |
|
---|
1228 | $ C:
|
---|
1229 | $ mkdir \temp-openssl
|
---|
1230 | $ cd \temp-openssl
|
---|
1231 | $ perl d:\PATH\TO\OPENSSL\SOURCE\Configure [[ options ]]
|
---|
1232 |
|
---|
1233 | Paths can be relative just as well as absolute. `Configure` will do its best
|
---|
1234 | to translate them to relative paths whenever possible.
|
---|
1235 |
|
---|
1236 | Build OpenSSL
|
---|
1237 | -------------
|
---|
1238 |
|
---|
1239 | Build OpenSSL by running:
|
---|
1240 |
|
---|
1241 | $ make # Unix
|
---|
1242 | $ mms ! (or mmk) OpenVMS
|
---|
1243 | $ nmake # Windows
|
---|
1244 |
|
---|
1245 | This will build the OpenSSL libraries (`libcrypto.a` and `libssl.a` on
|
---|
1246 | Unix, corresponding on other platforms) and the OpenSSL binary
|
---|
1247 | (`openssl`). The libraries will be built in the top-level directory,
|
---|
1248 | and the binary will be in the `apps/` subdirectory.
|
---|
1249 |
|
---|
1250 | If the build fails, take a look at the [Build Failures](#build-failures)
|
---|
1251 | subsection of the [Troubleshooting](#troubleshooting) section.
|
---|
1252 |
|
---|
1253 | Test OpenSSL
|
---|
1254 | ------------
|
---|
1255 |
|
---|
1256 | After a successful build, and before installing, the libraries should
|
---|
1257 | be tested. Run:
|
---|
1258 |
|
---|
1259 | $ make test # Unix
|
---|
1260 | $ mms test ! OpenVMS
|
---|
1261 | $ nmake test # Windows
|
---|
1262 |
|
---|
1263 | **Warning:** you MUST run the tests from an unprivileged account (or disable
|
---|
1264 | your privileges temporarily if your platform allows it).
|
---|
1265 |
|
---|
1266 | See [test/README.md](test/README.md) for further details how run tests.
|
---|
1267 |
|
---|
1268 | See [test/README-dev.md](test/README-dev.md) for guidelines on adding tests.
|
---|
1269 |
|
---|
1270 | Install OpenSSL
|
---|
1271 | ---------------
|
---|
1272 |
|
---|
1273 | If everything tests ok, install OpenSSL with
|
---|
1274 |
|
---|
1275 | $ make install # Unix
|
---|
1276 | $ mms install ! OpenVMS
|
---|
1277 | $ nmake install # Windows
|
---|
1278 |
|
---|
1279 | Note that in order to perform the install step above you need to have
|
---|
1280 | appropriate permissions to write to the installation directory.
|
---|
1281 |
|
---|
1282 | The above commands will install all the software components in this
|
---|
1283 | directory tree under `<PREFIX>` (the directory given with `--prefix` or
|
---|
1284 | its default):
|
---|
1285 |
|
---|
1286 | ### Unix / Linux / macOS
|
---|
1287 |
|
---|
1288 | bin/ Contains the openssl binary and a few other
|
---|
1289 | utility scripts.
|
---|
1290 | include/openssl
|
---|
1291 | Contains the header files needed if you want
|
---|
1292 | to build your own programs that use libcrypto
|
---|
1293 | or libssl.
|
---|
1294 | lib Contains the OpenSSL library files.
|
---|
1295 | lib/engines Contains the OpenSSL dynamically loadable engines.
|
---|
1296 |
|
---|
1297 | share/man/man1 Contains the OpenSSL command line man-pages.
|
---|
1298 | share/man/man3 Contains the OpenSSL library calls man-pages.
|
---|
1299 | share/man/man5 Contains the OpenSSL configuration format man-pages.
|
---|
1300 | share/man/man7 Contains the OpenSSL other misc man-pages.
|
---|
1301 |
|
---|
1302 | share/doc/openssl/html/man1
|
---|
1303 | share/doc/openssl/html/man3
|
---|
1304 | share/doc/openssl/html/man5
|
---|
1305 | share/doc/openssl/html/man7
|
---|
1306 | Contains the HTML rendition of the man-pages.
|
---|
1307 |
|
---|
1308 | ### OpenVMS
|
---|
1309 |
|
---|
1310 | 'arch' is replaced with the architecture name, `ALPHA` or `IA64`,
|
---|
1311 | 'sover' is replaced with the shared library version (`0101` for 1.1), and
|
---|
1312 | 'pz' is replaced with the pointer size OpenSSL was built with:
|
---|
1313 |
|
---|
1314 | [.EXE.'arch'] Contains the openssl binary.
|
---|
1315 | [.EXE] Contains a few utility scripts.
|
---|
1316 | [.include.openssl]
|
---|
1317 | Contains the header files needed if you want
|
---|
1318 | to build your own programs that use libcrypto
|
---|
1319 | or libssl.
|
---|
1320 | [.LIB.'arch'] Contains the OpenSSL library files.
|
---|
1321 | [.ENGINES'sover''pz'.'arch']
|
---|
1322 | Contains the OpenSSL dynamically loadable engines.
|
---|
1323 | [.SYS$STARTUP] Contains startup, login and shutdown scripts.
|
---|
1324 | These define appropriate logical names and
|
---|
1325 | command symbols.
|
---|
1326 | [.SYSTEST] Contains the installation verification procedure.
|
---|
1327 | [.HTML] Contains the HTML rendition of the manual pages.
|
---|
1328 |
|
---|
1329 | ### Additional Directories
|
---|
1330 |
|
---|
1331 | Additionally, install will add the following directories under
|
---|
1332 | OPENSSLDIR (the directory given with `--openssldir` or its default)
|
---|
1333 | for you convenience:
|
---|
1334 |
|
---|
1335 | certs Initially empty, this is the default location
|
---|
1336 | for certificate files.
|
---|
1337 | private Initially empty, this is the default location
|
---|
1338 | for private key files.
|
---|
1339 | misc Various scripts.
|
---|
1340 |
|
---|
1341 | The installation directory should be appropriately protected to ensure
|
---|
1342 | unprivileged users cannot make changes to OpenSSL binaries or files, or
|
---|
1343 | install engines. If you already have a pre-installed version of OpenSSL as
|
---|
1344 | part of your Operating System it is recommended that you do not overwrite
|
---|
1345 | the system version and instead install to somewhere else.
|
---|
1346 |
|
---|
1347 | Package builders who want to configure the library for standard locations,
|
---|
1348 | but have the package installed somewhere else so that it can easily be
|
---|
1349 | packaged, can use
|
---|
1350 |
|
---|
1351 | $ make DESTDIR=/tmp/package-root install # Unix
|
---|
1352 | $ mms/macro="DESTDIR=TMP:[PACKAGE-ROOT]" install ! OpenVMS
|
---|
1353 |
|
---|
1354 | The specified destination directory will be prepended to all installation
|
---|
1355 | target paths.
|
---|
1356 |
|
---|
1357 | Compatibility issues with previous OpenSSL versions
|
---|
1358 | ---------------------------------------------------
|
---|
1359 |
|
---|
1360 | ### COMPILING existing applications
|
---|
1361 |
|
---|
1362 | Starting with version 1.1.0, OpenSSL hides a number of structures that were
|
---|
1363 | previously open. This includes all internal libssl structures and a number
|
---|
1364 | of EVP types. Accessor functions have been added to allow controlled access
|
---|
1365 | to the structures' data.
|
---|
1366 |
|
---|
1367 | This means that some software needs to be rewritten to adapt to the new ways
|
---|
1368 | of doing things. This often amounts to allocating an instance of a structure
|
---|
1369 | explicitly where you could previously allocate them on the stack as automatic
|
---|
1370 | variables, and using the provided accessor functions where you would previously
|
---|
1371 | access a structure's field directly.
|
---|
1372 |
|
---|
1373 | Some APIs have changed as well. However, older APIs have been preserved when
|
---|
1374 | possible.
|
---|
1375 |
|
---|
1376 | Post-installation Notes
|
---|
1377 | -----------------------
|
---|
1378 |
|
---|
1379 | With the default OpenSSL installation comes a FIPS provider module, which
|
---|
1380 | needs some post-installation attention, without which it will not be usable.
|
---|
1381 | This involves using the following command:
|
---|
1382 |
|
---|
1383 | $ openssl fipsinstall
|
---|
1384 |
|
---|
1385 | See the openssl-fipsinstall(1) manual for details and examples.
|
---|
1386 |
|
---|
1387 | Advanced Build Options
|
---|
1388 | ======================
|
---|
1389 |
|
---|
1390 | Environment Variables
|
---|
1391 | ---------------------
|
---|
1392 |
|
---|
1393 | A number of environment variables can be used to provide additional control
|
---|
1394 | over the build process. Typically these should be defined prior to running
|
---|
1395 | `Configure`. Not all environment variables are relevant to all platforms.
|
---|
1396 |
|
---|
1397 | AR
|
---|
1398 | The name of the ar executable to use.
|
---|
1399 |
|
---|
1400 | BUILDFILE
|
---|
1401 | Use a different build file name than the platform default
|
---|
1402 | ("Makefile" on Unix-like platforms, "makefile" on native Windows,
|
---|
1403 | "descrip.mms" on OpenVMS). This requires that there is a
|
---|
1404 | corresponding build file template.
|
---|
1405 | See [Configurations/README.md](Configurations/README.md)
|
---|
1406 | for further information.
|
---|
1407 |
|
---|
1408 | CC
|
---|
1409 | The compiler to use. Configure will attempt to pick a default
|
---|
1410 | compiler for your platform but this choice can be overridden
|
---|
1411 | using this variable. Set it to the compiler executable you wish
|
---|
1412 | to use, e.g. gcc or clang.
|
---|
1413 |
|
---|
1414 | CROSS_COMPILE
|
---|
1415 | This environment variable has the same meaning as for the
|
---|
1416 | "--cross-compile-prefix" Configure flag described above. If both
|
---|
1417 | are set then the Configure flag takes precedence.
|
---|
1418 |
|
---|
1419 | HASHBANGPERL
|
---|
1420 | The command string for the Perl executable to insert in the
|
---|
1421 | #! line of perl scripts that will be publicly installed.
|
---|
1422 | Default: /usr/bin/env perl
|
---|
1423 | Note: the value of this variable is added to the same scripts
|
---|
1424 | on all platforms, but it's only relevant on Unix-like platforms.
|
---|
1425 |
|
---|
1426 | KERNEL_BITS
|
---|
1427 | This can be the value `32` or `64` to specify the architecture
|
---|
1428 | when it is not "obvious" to the configuration. It should generally
|
---|
1429 | not be necessary to specify this environment variable.
|
---|
1430 |
|
---|
1431 | NM
|
---|
1432 | The name of the nm executable to use.
|
---|
1433 |
|
---|
1434 | OPENSSL_LOCAL_CONFIG_DIR
|
---|
1435 | OpenSSL comes with a database of information about how it
|
---|
1436 | should be built on different platforms as well as build file
|
---|
1437 | templates for those platforms. The database is comprised of
|
---|
1438 | ".conf" files in the Configurations directory. The build
|
---|
1439 | file templates reside there as well as ".tmpl" files. See the
|
---|
1440 | file [Configurations/README.md](Configurations/README.md)
|
---|
1441 | for further information about the format of ".conf" files
|
---|
1442 | as well as information on the ".tmpl" files.
|
---|
1443 | In addition to the standard ".conf" and ".tmpl" files, it is
|
---|
1444 | possible to create your own ".conf" and ".tmpl" files and
|
---|
1445 | store them locally, outside the OpenSSL source tree.
|
---|
1446 | This environment variable can be set to the directory where
|
---|
1447 | these files are held and will be considered by Configure
|
---|
1448 | before it looks in the standard directories.
|
---|
1449 |
|
---|
1450 | PERL
|
---|
1451 | The name of the Perl executable to use when building OpenSSL.
|
---|
1452 | Only needed if builing should use a different Perl executable
|
---|
1453 | than what is used to run the Configure script.
|
---|
1454 |
|
---|
1455 | RANLIB
|
---|
1456 | The name of the ranlib executable to use.
|
---|
1457 |
|
---|
1458 | RC
|
---|
1459 | The name of the rc executable to use. The default will be as
|
---|
1460 | defined for the target platform in the ".conf" file. If not
|
---|
1461 | defined then "windres" will be used. The WINDRES environment
|
---|
1462 | variable is synonymous to this. If both are defined then RC
|
---|
1463 | takes precedence.
|
---|
1464 |
|
---|
1465 | WINDRES
|
---|
1466 | See RC.
|
---|
1467 |
|
---|
1468 | Makefile Targets
|
---|
1469 | ----------------
|
---|
1470 |
|
---|
1471 | The `Configure` script generates a Makefile in a format relevant to the specific
|
---|
1472 | platform. The Makefiles provide a number of targets that can be used. Not all
|
---|
1473 | targets may be available on all platforms. Only the most common targets are
|
---|
1474 | described here. Examine the Makefiles themselves for the full list.
|
---|
1475 |
|
---|
1476 | all
|
---|
1477 | The target to build all the software components and
|
---|
1478 | documentation.
|
---|
1479 |
|
---|
1480 | build_sw
|
---|
1481 | Build all the software components.
|
---|
1482 | THIS IS THE DEFAULT TARGET.
|
---|
1483 |
|
---|
1484 | build_docs
|
---|
1485 | Build all documentation components.
|
---|
1486 |
|
---|
1487 | clean
|
---|
1488 | Remove all build artefacts and return the directory to a "clean"
|
---|
1489 | state.
|
---|
1490 |
|
---|
1491 | depend
|
---|
1492 | Rebuild the dependencies in the Makefiles. This is a legacy
|
---|
1493 | option that no longer needs to be used since OpenSSL 1.1.0.
|
---|
1494 |
|
---|
1495 | install
|
---|
1496 | Install all OpenSSL components.
|
---|
1497 |
|
---|
1498 | install_sw
|
---|
1499 | Only install the OpenSSL software components.
|
---|
1500 |
|
---|
1501 | install_docs
|
---|
1502 | Only install the OpenSSL documentation components.
|
---|
1503 |
|
---|
1504 | install_man_docs
|
---|
1505 | Only install the OpenSSL man pages (Unix only).
|
---|
1506 |
|
---|
1507 | install_html_docs
|
---|
1508 | Only install the OpenSSL HTML documentation.
|
---|
1509 |
|
---|
1510 | install_fips
|
---|
1511 | Install the FIPS provider module configuration file.
|
---|
1512 |
|
---|
1513 | list-tests
|
---|
1514 | Prints a list of all the self test names.
|
---|
1515 |
|
---|
1516 | test
|
---|
1517 | Build and run the OpenSSL self tests.
|
---|
1518 |
|
---|
1519 | uninstall
|
---|
1520 | Uninstall all OpenSSL components.
|
---|
1521 |
|
---|
1522 | reconfigure
|
---|
1523 | reconf
|
---|
1524 | Re-run the configuration process, as exactly as the last time
|
---|
1525 | as possible.
|
---|
1526 |
|
---|
1527 | update
|
---|
1528 | This is a developer option. If you are developing a patch for
|
---|
1529 | OpenSSL you may need to use this if you want to update
|
---|
1530 | automatically generated files; add new error codes or add new
|
---|
1531 | (or change the visibility of) public API functions. (Unix only).
|
---|
1532 |
|
---|
1533 | Running Selected Tests
|
---|
1534 | ----------------------
|
---|
1535 |
|
---|
1536 | You can specify a set of tests to be performed
|
---|
1537 | using the `make` variable `TESTS`.
|
---|
1538 |
|
---|
1539 | See the section [Running Selected Tests of
|
---|
1540 | test/README.md](test/README.md#running-selected-tests).
|
---|
1541 |
|
---|
1542 | Troubleshooting
|
---|
1543 | ===============
|
---|
1544 |
|
---|
1545 | Configuration Problems
|
---|
1546 | ----------------------
|
---|
1547 |
|
---|
1548 | ### Selecting the correct target
|
---|
1549 |
|
---|
1550 | The `./Configure` script tries hard to guess your operating system, but in some
|
---|
1551 | cases it does not succeed. You will see a message like the following:
|
---|
1552 |
|
---|
1553 | $ ./Configure
|
---|
1554 | Operating system: x86-whatever-minix
|
---|
1555 | This system (minix) is not supported. See file INSTALL.md for details.
|
---|
1556 |
|
---|
1557 | Even if the automatic target selection by the `./Configure` script fails,
|
---|
1558 | chances are that you still might find a suitable target in the `Configurations`
|
---|
1559 | directory, which you can supply to the `./Configure` command,
|
---|
1560 | possibly after some adjustment.
|
---|
1561 |
|
---|
1562 | The `Configurations/` directory contains a lot of examples of such targets.
|
---|
1563 | The main configuration file is [10-main.conf], which contains all targets that
|
---|
1564 | are officially supported by the OpenSSL team. Other configuration files contain
|
---|
1565 | targets contributed by other OpenSSL users. The list of targets can be found in
|
---|
1566 | a Perl list `my %targets = ( ... )`.
|
---|
1567 |
|
---|
1568 | my %targets = (
|
---|
1569 | ...
|
---|
1570 | "target-name" => {
|
---|
1571 | inherit_from => [ "base-target" ],
|
---|
1572 | CC => "...",
|
---|
1573 | cflags => add("..."),
|
---|
1574 | asm_arch => '...',
|
---|
1575 | perlasm_scheme => "...",
|
---|
1576 | },
|
---|
1577 | ...
|
---|
1578 | )
|
---|
1579 |
|
---|
1580 | If you call `./Configure` without arguments, it will give you a list of all
|
---|
1581 | known targets. Using `grep`, you can lookup the target definition in the
|
---|
1582 | `Configurations/` directory. For example the `android-x86_64` can be found in
|
---|
1583 | [Configurations/15-android.conf](Configurations/15-android.conf).
|
---|
1584 |
|
---|
1585 | The directory contains two README files, which explain the general syntax and
|
---|
1586 | design of the configuration files.
|
---|
1587 |
|
---|
1588 | - [Configurations/README.md](Configurations/README.md)
|
---|
1589 | - [Configurations/README-design.md](Configurations/README-design.md)
|
---|
1590 |
|
---|
1591 | If you need further help, try to search the [openssl-users] mailing list
|
---|
1592 | or the [GitHub Issues] for existing solutions. If you don't find anything,
|
---|
1593 | you can [raise an issue] to ask a question yourself.
|
---|
1594 |
|
---|
1595 | More about our support resources can be found in the [SUPPORT] file.
|
---|
1596 |
|
---|
1597 | ### Configuration Errors
|
---|
1598 |
|
---|
1599 | If the `./Configure` or `./Configure` command fails with an error message,
|
---|
1600 | read the error message carefully and try to figure out whether you made
|
---|
1601 | a mistake (e.g., by providing a wrong option), or whether the script is
|
---|
1602 | working incorrectly. If you think you encountered a bug, please
|
---|
1603 | [raise an issue] on GitHub to file a bug report.
|
---|
1604 |
|
---|
1605 | Along with a short description of the bug, please provide the complete
|
---|
1606 | configure command line and the relevant output including the error message.
|
---|
1607 |
|
---|
1608 | Note: To make the output readable, pleace add a 'code fence' (three backquotes
|
---|
1609 | ` ``` ` on a separate line) before and after your output:
|
---|
1610 |
|
---|
1611 | ```
|
---|
1612 | ./Configure [your arguments...]
|
---|
1613 |
|
---|
1614 | [output...]
|
---|
1615 |
|
---|
1616 | ```
|
---|
1617 |
|
---|
1618 | Build Failures
|
---|
1619 | --------------
|
---|
1620 |
|
---|
1621 | If the build fails, look carefully at the output. Try to locate and understand
|
---|
1622 | the error message. It might be that the compiler is already telling you
|
---|
1623 | exactly what you need to do to fix your problem.
|
---|
1624 |
|
---|
1625 | There may be reasons for the failure that aren't problems in OpenSSL itself,
|
---|
1626 | for example if the compiler reports missing standard or third party headers.
|
---|
1627 |
|
---|
1628 | If the build succeeded previously, but fails after a source or configuration
|
---|
1629 | change, it might be helpful to clean the build tree before attempting another
|
---|
1630 | build. Use this command:
|
---|
1631 |
|
---|
1632 | $ make clean # Unix
|
---|
1633 | $ mms clean ! (or mmk) OpenVMS
|
---|
1634 | $ nmake clean # Windows
|
---|
1635 |
|
---|
1636 | Assembler error messages can sometimes be sidestepped by using the `no-asm`
|
---|
1637 | configuration option. See also [notes](#notes-on-assembler-modules-compilation).
|
---|
1638 |
|
---|
1639 | Compiling parts of OpenSSL with gcc and others with the system compiler will
|
---|
1640 | result in unresolved symbols on some systems.
|
---|
1641 |
|
---|
1642 | If you are still having problems, try to search the [openssl-users] mailing
|
---|
1643 | list or the [GitHub Issues] for existing solutions. If you think you
|
---|
1644 | encountered an OpenSSL bug, please [raise an issue] to file a bug report.
|
---|
1645 | Please take the time to review the existing issues first; maybe the bug was
|
---|
1646 | already reported or has already been fixed.
|
---|
1647 |
|
---|
1648 | Test Failures
|
---|
1649 | -------------
|
---|
1650 |
|
---|
1651 | If some tests fail, look at the output. There may be reasons for the failure
|
---|
1652 | that isn't a problem in OpenSSL itself (like an OS malfunction or a Perl issue).
|
---|
1653 |
|
---|
1654 | You may want increased verbosity, that can be accomplished as described in
|
---|
1655 | section [Test Failures of test/README.md](test/README.md#test-failures).
|
---|
1656 |
|
---|
1657 | You may also want to selectively specify which test(s) to perform. This can be
|
---|
1658 | done using the `make` variable `TESTS` as described in section [Running
|
---|
1659 | Selected Tests of test/README.md](test/README.md#running-selected-tests).
|
---|
1660 |
|
---|
1661 | If you find a problem with OpenSSL itself, try removing any
|
---|
1662 | compiler optimization flags from the `CFLAGS` line in the Makefile and
|
---|
1663 | run `make clean; make` or corresponding.
|
---|
1664 |
|
---|
1665 | To report a bug please open an issue on GitHub, at
|
---|
1666 | <https://github.com/openssl/openssl/issues>.
|
---|
1667 |
|
---|
1668 | Notes
|
---|
1669 | =====
|
---|
1670 |
|
---|
1671 | Notes on multi-threading
|
---|
1672 | ------------------------
|
---|
1673 |
|
---|
1674 | For some systems, the OpenSSL `Configure` script knows what compiler options
|
---|
1675 | are needed to generate a library that is suitable for multi-threaded
|
---|
1676 | applications. On these systems, support for multi-threading is enabled
|
---|
1677 | by default; use the `no-threads` option to disable (this should never be
|
---|
1678 | necessary).
|
---|
1679 |
|
---|
1680 | On other systems, to enable support for multi-threading, you will have
|
---|
1681 | to specify at least two options: `threads`, and a system-dependent option.
|
---|
1682 | (The latter is `-D_REENTRANT` on various systems.) The default in this
|
---|
1683 | case, obviously, is not to include support for multi-threading (but
|
---|
1684 | you can still use `no-threads` to suppress an annoying warning message
|
---|
1685 | from the `Configure` script.)
|
---|
1686 |
|
---|
1687 | OpenSSL provides built-in support for two threading models: pthreads (found on
|
---|
1688 | most UNIX/Linux systems), and Windows threads. No other threading models are
|
---|
1689 | supported. If your platform does not provide pthreads or Windows threads then
|
---|
1690 | you should use `Configure` with the `no-threads` option.
|
---|
1691 |
|
---|
1692 | For pthreads, all locks are non-recursive. In addition, in a debug build,
|
---|
1693 | the mutex attribute `PTHREAD_MUTEX_ERRORCHECK` is used. If this is not
|
---|
1694 | available on your platform, you might have to add
|
---|
1695 | `-DOPENSSL_NO_MUTEX_ERRORCHECK` to your `Configure` invocation.
|
---|
1696 | (On Linux `PTHREAD_MUTEX_ERRORCHECK` is an enum value, so a built-in
|
---|
1697 | ifdef test cannot be used.)
|
---|
1698 |
|
---|
1699 | Notes on shared libraries
|
---|
1700 | -------------------------
|
---|
1701 |
|
---|
1702 | For most systems the OpenSSL `Configure` script knows what is needed to
|
---|
1703 | build shared libraries for libcrypto and libssl. On these systems
|
---|
1704 | the shared libraries will be created by default. This can be suppressed and
|
---|
1705 | only static libraries created by using the `no-shared` option. On systems
|
---|
1706 | where OpenSSL does not know how to build shared libraries the `no-shared`
|
---|
1707 | option will be forced and only static libraries will be created.
|
---|
1708 |
|
---|
1709 | Shared libraries are named a little differently on different platforms.
|
---|
1710 | One way or another, they all have the major OpenSSL version number as
|
---|
1711 | part of the file name, i.e. for OpenSSL 1.1.x, `1.1` is somehow part of
|
---|
1712 | the name.
|
---|
1713 |
|
---|
1714 | On most POSIX platforms, shared libraries are named `libcrypto.so.1.1`
|
---|
1715 | and `libssl.so.1.1`.
|
---|
1716 |
|
---|
1717 | on Cygwin, shared libraries are named `cygcrypto-1.1.dll` and `cygssl-1.1.dll`
|
---|
1718 | with import libraries `libcrypto.dll.a` and `libssl.dll.a`.
|
---|
1719 |
|
---|
1720 | On Windows build with MSVC or using MingW, shared libraries are named
|
---|
1721 | `libcrypto-1_1.dll` and `libssl-1_1.dll` for 32-bit Windows,
|
---|
1722 | `libcrypto-1_1-x64.dll` and `libssl-1_1-x64.dll` for 64-bit x86_64 Windows,
|
---|
1723 | and `libcrypto-1_1-ia64.dll` and `libssl-1_1-ia64.dll` for IA64 Windows.
|
---|
1724 | With MSVC, the import libraries are named `libcrypto.lib` and `libssl.lib`,
|
---|
1725 | while with MingW, they are named `libcrypto.dll.a` and `libssl.dll.a`.
|
---|
1726 |
|
---|
1727 | On VMS, shareable images (VMS speak for shared libraries) are named
|
---|
1728 | `ossl$libcrypto0101_shr.exe` and `ossl$libssl0101_shr.exe`. However, when
|
---|
1729 | OpenSSL is specifically built for 32-bit pointers, the shareable images
|
---|
1730 | are named `ossl$libcrypto0101_shr32.exe` and `ossl$libssl0101_shr32.exe`
|
---|
1731 | instead, and when built for 64-bit pointers, they are named
|
---|
1732 | `ossl$libcrypto0101_shr64.exe` and `ossl$libssl0101_shr64.exe`.
|
---|
1733 |
|
---|
1734 | Notes on random number generation
|
---|
1735 | ---------------------------------
|
---|
1736 |
|
---|
1737 | Availability of cryptographically secure random numbers is required for
|
---|
1738 | secret key generation. OpenSSL provides several options to seed the
|
---|
1739 | internal CSPRNG. If not properly seeded, the internal CSPRNG will refuse
|
---|
1740 | to deliver random bytes and a "PRNG not seeded error" will occur.
|
---|
1741 |
|
---|
1742 | The seeding method can be configured using the `--with-rand-seed` option,
|
---|
1743 | which can be used to specify a comma separated list of seed methods.
|
---|
1744 | However, in most cases OpenSSL will choose a suitable default method,
|
---|
1745 | so it is not necessary to explicitly provide this option. Note also
|
---|
1746 | that not all methods are available on all platforms. The FIPS provider will
|
---|
1747 | silently ignore seed sources that were not validated.
|
---|
1748 |
|
---|
1749 | I) On operating systems which provide a suitable randomness source (in
|
---|
1750 | form of a system call or system device), OpenSSL will use the optimal
|
---|
1751 | available method to seed the CSPRNG from the operating system's
|
---|
1752 | randomness sources. This corresponds to the option `--with-rand-seed=os`.
|
---|
1753 |
|
---|
1754 | II) On systems without such a suitable randomness source, automatic seeding
|
---|
1755 | and reseeding is disabled (`--with-rand-seed=none`) and it may be necessary
|
---|
1756 | to install additional support software to obtain a random seed and reseed
|
---|
1757 | the CSPRNG manually. Please check out the manual pages for `RAND_add()`,
|
---|
1758 | `RAND_bytes()`, `RAND_egd()`, and the FAQ for more information.
|
---|
1759 |
|
---|
1760 | Notes on assembler modules compilation
|
---|
1761 | --------------------------------------
|
---|
1762 |
|
---|
1763 | Compilation of some code paths in assembler modules might depend on whether the
|
---|
1764 | current assembler version supports certain ISA extensions or not. Code paths
|
---|
1765 | that use the AES-NI, PCLMULQDQ, SSSE3, and SHA extensions are always assembled.
|
---|
1766 | Apart from that, the minimum requirements for the assembler versions are shown
|
---|
1767 | in the table below:
|
---|
1768 |
|
---|
1769 | | ISA extension | GNU as | nasm | llvm |
|
---|
1770 | |---------------|--------|--------|---------|
|
---|
1771 | | AVX | 2.19 | 2.09 | 3.0 |
|
---|
1772 | | AVX2 | 2.22 | 2.10 | 3.1 |
|
---|
1773 | | ADCX/ADOX | 2.23 | 2.10 | 3.3 |
|
---|
1774 | | AVX512 | 2.25 | 2.11.8 | 3.6 (*) |
|
---|
1775 | | AVX512IFMA | 2.26 | 2.11.8 | 6.0 (*) |
|
---|
1776 | | VAES | 2.30 | 2.13.3 | 6.0 (*) |
|
---|
1777 |
|
---|
1778 | ---
|
---|
1779 |
|
---|
1780 | (*) Even though AVX512 support was implemented in llvm 3.6, prior to version 7.0
|
---|
1781 | an explicit -march flag was apparently required to compile assembly modules. But
|
---|
1782 | then the compiler generates processor-specific code, which in turn contradicts
|
---|
1783 | the idea of performing dispatch at run-time, which is facilitated by the special
|
---|
1784 | variable `OPENSSL_ia32cap`. For versions older than 7.0, it is possible to work
|
---|
1785 | around the problem by forcing the build procedure to use the following script:
|
---|
1786 |
|
---|
1787 | #!/bin/sh
|
---|
1788 | exec clang -no-integrated-as "$@"
|
---|
1789 |
|
---|
1790 | instead of the real clang. In which case it doesn't matter what clang version
|
---|
1791 | is used, as it is the version of the GNU assembler that will be checked.
|
---|
1792 |
|
---|
1793 | ---
|
---|
1794 |
|
---|
1795 | <!-- Links -->
|
---|
1796 |
|
---|
1797 | [openssl-users]:
|
---|
1798 | <https://mta.openssl.org/mailman/listinfo/openssl-users>
|
---|
1799 |
|
---|
1800 | [SUPPORT]:
|
---|
1801 | ./SUPPORT.md
|
---|
1802 |
|
---|
1803 | [GitHub Issues]:
|
---|
1804 | <https://github.com/openssl/openssl/issues>
|
---|
1805 |
|
---|
1806 | [raise an issue]:
|
---|
1807 | <https://github.com/openssl/openssl/issues/new/choose>
|
---|
1808 |
|
---|
1809 | [10-main.conf]:
|
---|
1810 | Configurations/10-main.conf
|
---|