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6ede7d73 DMSP |
1 | Build and Install |
2 | ================= | |
3 | ||
4 | This document describes installation on all supported operating | |
5 | systems (the Unix/Linux family, including macOS), OpenVMS, | |
6 | and Windows). | |
7 | ||
8 | Table of Contents | |
9 | ================= | |
10 | ||
11 | - [Prerequisites](#prerequisites) | |
12 | - [Notational Conventions](#notational-conventions) | |
13 | - [Quick Installation Guide](#quick-installation-guide) | |
257e9d03 RS |
14 | - [Building OpenSSL](#building-openssl) |
15 | - [Installing OpenSSL](#installing-openssl) | |
6ede7d73 | 16 | - [Configuration Options](#configuration-options) |
257e9d03 RS |
17 | - [API Level](#api-level) |
18 | - [Cross Compile Prefix](#cross-compile-prefix) | |
19 | - [Build Type](#build-type) | |
20 | - [Directories](#directories) | |
21 | - [Compiler Warnings](#compiler-warnings) | |
22 | - [ZLib Flags](#zlib-flags) | |
23 | - [Seeding the Random Generator](#seeding-the-random-generator) | |
31214258 | 24 | - [Setting the FIPS HMAC key](#setting-the-FIPS-HMAC-key) |
257e9d03 RS |
25 | - [Enable and Disable Features](#enable-and-disable-features) |
26 | - [Displaying configuration data](#displaying-configuration-data) | |
6ede7d73 | 27 | - [Installation Steps in Detail](#installation-steps-in-detail) |
257e9d03 RS |
28 | - [Configure](#configure-openssl) |
29 | - [Build](#build-openssl) | |
30 | - [Test](#test-openssl) | |
31 | - [Install](#install-openssl) | |
6ede7d73 | 32 | - [Advanced Build Options](#advanced-build-options) |
257e9d03 RS |
33 | - [Environment Variables](#environment-variables) |
34 | - [Makefile Targets](#makefile-targets) | |
35 | - [Running Selected Tests](#running-selected-tests) | |
6ede7d73 | 36 | - [Troubleshooting](#troubleshooting) |
257e9d03 RS |
37 | - [Configuration Problems](#configuration-problems) |
38 | - [Build Failures](#build-failures) | |
39 | - [Test Failures](#test-failures) | |
6ede7d73 | 40 | - [Notes](#notes) |
257e9d03 RS |
41 | - [Notes on multi-threading](#notes-on-multi-threading) |
42 | - [Notes on shared libraries](#notes-on-shared-libraries) | |
43 | - [Notes on random number generation](#notes-on-random-number-generation) | |
79e259e3 | 44 | |
6ede7d73 DMSP |
45 | Prerequisites |
46 | ============= | |
2acd8ec7 | 47 | |
6ede7d73 | 48 | To install OpenSSL, you will need: |
2acd8ec7 | 49 | |
3a0b3cc9 | 50 | * A "make" implementation |
1dc1ea18 DDO |
51 | * Perl 5 with core modules (please read [NOTES-Perl.md](NOTES-Perl.md)) |
52 | * The Perl module `Text::Template` (please read [NOTES-PERL.md](NOTES-Perl.md)) | |
6ede7d73 DMSP |
53 | * an ANSI C compiler |
54 | * a development environment in the form of development libraries and C | |
55 | header files | |
56 | * a supported operating system | |
79e259e3 | 57 | |
6ede7d73 DMSP |
58 | For additional platform specific requirements, solutions to specific |
59 | issues and other details, please read one of these: | |
ea24fe29 | 60 | |
1dc1ea18 DDO |
61 | * [NOTES-Unix.md](NOTES-Unix.md) - notes for Unix like systems |
62 | * [NOTES-VMS.md](NOTES-VMS.md) - notes related to OpenVMS | |
63 | * [NOTES-Windows.txt](NOTES-Windows.txt) - notes related to the Windows platform | |
64 | * [NOTES-DJGPP.md](NOTES-DJGPP.md) - building for DOS with DJGPP | |
65 | * [NOTES-Android.md](NOTES-Android.md) - building for Android platforms (using NDK) | |
66 | * [NOTES-Valgrind.md](NOTES-Valgrind.md) - testing with Valgrind | |
67 | * [NOTES-Perl.m](NOTES-Perl.md) - some notes on Perl | |
ea24fe29 | 68 | |
6ede7d73 DMSP |
69 | Notational conventions |
70 | ====================== | |
ea24fe29 | 71 | |
6ede7d73 | 72 | Throughout this document, we use the following conventions. |
ea24fe29 | 73 | |
6ede7d73 DMSP |
74 | Commands |
75 | -------- | |
ea24fe29 | 76 | |
6ede7d73 | 77 | Any line starting with a dollar sign is a command line. |
ea24fe29 | 78 | |
6ede7d73 | 79 | $ command |
ea24fe29 | 80 | |
6ede7d73 DMSP |
81 | The dollar sign indicates the shell prompt and is not to be entered as |
82 | part of the command. | |
ea24fe29 | 83 | |
6ede7d73 DMSP |
84 | Choices |
85 | ------- | |
ea24fe29 | 86 | |
6ede7d73 DMSP |
87 | Several words in curly braces separated by pipe characters indicate a |
88 | **mandatory choice**, to be replaced with one of the given words. | |
89 | For example, the line | |
ea24fe29 | 90 | |
6ede7d73 | 91 | $ echo { WORD1 | WORD2 | WORD3 } |
ea24fe29 | 92 | |
6ede7d73 | 93 | represents one of the following three commands |
ea24fe29 | 94 | |
6ede7d73 DMSP |
95 | $ echo WORD1 |
96 | - or - | |
97 | $ echo WORD2 | |
98 | - or - | |
99 | $ echo WORD3 | |
ea24fe29 | 100 | |
6ede7d73 DMSP |
101 | One or several words in square brackets separated by pipe characters |
102 | denote an **optional choice**. It is similar to the mandatory choice, | |
103 | but it can also be omitted entirely. | |
79e259e3 | 104 | |
6ede7d73 | 105 | So the line |
79e259e3 | 106 | |
6ede7d73 DMSP |
107 | $ echo [ WORD1 | WORD2 | WORD3 ] |
108 | ||
109 | represents one of the four commands | |
110 | ||
111 | $ echo WORD1 | |
112 | - or - | |
113 | $ echo WORD2 | |
114 | - or - | |
115 | $ echo WORD3 | |
116 | - or - | |
117 | $ echo | |
118 | ||
119 | Arguments | |
120 | --------- | |
121 | ||
122 | **Mandatory arguments** are enclosed in double curly braces. | |
123 | A simple example would be | |
124 | ||
125 | $ type {{ filename }} | |
126 | ||
127 | which is to be understood to use the command `type` on some file name | |
128 | determined by the user. | |
129 | ||
6ede7d73 DMSP |
130 | **Optional Arguments** are enclosed in double square brackets. |
131 | ||
132 | [[ options ]] | |
133 | ||
9afbb681 DDO |
134 | Note that the notation assumes spaces around `{`, `}`, `[`, `]`, `{{`, `}}` and |
135 | `[[`, `]]`. This is to differentiate from OpenVMS directory | |
6ede7d73 DMSP |
136 | specifications, which also use [ and ], but without spaces. |
137 | ||
6ede7d73 DMSP |
138 | Quick Installation Guide |
139 | ======================== | |
140 | ||
141 | If you just want to get OpenSSL installed without bothering too much | |
142 | about the details, here is the short version of how to build and install | |
143 | OpenSSL. If any of the following steps fails, please consult the | |
bf4cdd4a | 144 | [Installation in Detail](#installation-steps-in-detail) section below. |
6ede7d73 DMSP |
145 | |
146 | Building OpenSSL | |
147 | ---------------- | |
148 | ||
149 | Use the following commands to configure, build and test OpenSSL. | |
150 | The testing is optional, but recommended if you intend to install | |
151 | OpenSSL for production use. | |
152 | ||
257e9d03 | 153 | ### Unix / Linux / macOS |
2acd8ec7 | 154 | |
16b0e0fc | 155 | $ ./Configure |
2acd8ec7 RL |
156 | $ make |
157 | $ make test | |
2acd8ec7 | 158 | |
257e9d03 | 159 | ### OpenVMS |
6ede7d73 DMSP |
160 | |
161 | Use the following commands to build OpenSSL: | |
2acd8ec7 | 162 | |
16b0e0fc | 163 | $ perl Configure |
2acd8ec7 RL |
164 | $ mms |
165 | $ mms test | |
79e259e3 | 166 | |
257e9d03 | 167 | ### Windows |
6ede7d73 DMSP |
168 | |
169 | If you are using Visual Studio, open a Developer Command Prompt and | |
8c1cbc72 | 170 | issue the following commands to build OpenSSL. |
b32b8961 | 171 | |
16b0e0fc | 172 | $ perl Configure |
b32b8961 RL |
173 | $ nmake |
174 | $ nmake test | |
6ede7d73 DMSP |
175 | |
176 | As mentioned in the [Choices](#choices) section, you need to pick one | |
177 | of the four Configure targets in the first command. | |
178 | ||
9afbb681 DDO |
179 | Most likely you will be using the `VC-WIN64A` target for 64bit Windows |
180 | binaries (AMD64) or `VC-WIN32` for 32bit Windows binaries (X86). | |
181 | The other two options are `VC-WIN64I` (Intel IA64, Itanium) and | |
182 | `VC-CE` (Windows CE) are rather uncommon nowadays. | |
6ede7d73 DMSP |
183 | |
184 | Installing OpenSSL | |
185 | ------------------ | |
186 | ||
187 | The following commands will install OpenSSL to a default system location. | |
188 | ||
189 | **Danger Zone:** even if you are impatient, please read the following two | |
190 | paragraphs carefully before you install OpenSSL. | |
191 | ||
192 | For security reasons the default system location is by default not writable | |
193 | for unprivileged users. So for the final installation step administrative | |
194 | privileges are required. The default system location and the procedure to | |
8c1cbc72 | 195 | obtain administrative privileges depends on the operating system. |
6ede7d73 DMSP |
196 | It is recommended to compile and test OpenSSL with normal user privileges |
197 | and use administrative privileges only for the final installation step. | |
198 | ||
199 | On some platforms OpenSSL is preinstalled as part of the Operating System. | |
200 | In this case it is highly recommended not to overwrite the system versions, | |
201 | because other applications or libraries might depend on it. | |
202 | To avoid breaking other applications, install your copy of OpenSSL to a | |
203 | [different location](#installing-to-a-different-location) which is not in | |
204 | the global search path for system libraries. | |
205 | ||
41149648 RL |
206 | Finally, if you plan on using the FIPS module, you need to read the |
207 | [Post-installation Notes](#post-installation-notes) further down. | |
208 | ||
257e9d03 | 209 | ### Unix / Linux / macOS |
6ede7d73 DMSP |
210 | |
211 | Depending on your distribution, you need to run the following command as | |
212 | root user or prepend `sudo` to the command: | |
213 | ||
214 | $ make install | |
215 | ||
216 | By default, OpenSSL will be installed to | |
217 | ||
218 | /usr/local | |
219 | ||
220 | More precisely, the files will be installed into the subdirectories | |
221 | ||
222 | /usr/local/bin | |
223 | /usr/local/lib | |
224 | /usr/local/include | |
225 | ... | |
226 | ||
227 | depending on the file type, as it is custom on Unix-like operating systems. | |
228 | ||
257e9d03 | 229 | ### OpenVMS |
6ede7d73 DMSP |
230 | |
231 | Use the following command to install OpenSSL. | |
232 | ||
233 | $ mms install | |
234 | ||
235 | By default, OpenSSL will be installed to | |
236 | ||
237 | SYS$COMMON:[OPENSSL-'version'...] | |
238 | ||
239 | where 'version' is the OpenSSL version number with underscores instead | |
240 | of periods. | |
241 | ||
257e9d03 | 242 | ### Windows |
6ede7d73 DMSP |
243 | |
244 | If you are using Visual Studio, open the Developer Command Prompt _elevated_ | |
245 | and issue the following command. | |
246 | ||
8c16829e | 247 | $ nmake install |
b32b8961 | 248 | |
6ede7d73 DMSP |
249 | The easiest way to elevate the Command Prompt is to press and hold down |
250 | the both the `<CTRL>` and `<SHIFT>` key while clicking the menu item in the | |
251 | task menu. | |
252 | ||
253 | The default installation location is | |
254 | ||
255 | C:\Program Files\OpenSSL | |
7c03bb9f | 256 | |
6ede7d73 | 257 | for native binaries, or |
b1fe6b43 | 258 | |
6ede7d73 | 259 | C:\Program Files (x86)\OpenSSL |
2acd8ec7 | 260 | |
6ede7d73 | 261 | for 32bit binaries on 64bit Windows (WOW64). |
2acd8ec7 | 262 | |
257e9d03 | 263 | #### Installing to a different location |
79e259e3 | 264 | |
6ede7d73 | 265 | To install OpenSSL to a different location (for example into your home |
9afbb681 | 266 | directory for testing purposes) run `Configure` as shown in the following |
43a70f02 | 267 | examples. |
6ede7d73 | 268 | |
43a70f02 | 269 | On Unix: |
2acd8ec7 | 270 | |
16b0e0fc | 271 | $ ./Configure --prefix=/opt/openssl --openssldir=/usr/local/ssl |
2acd8ec7 | 272 | |
43a70f02 | 273 | On OpenVMS: |
2acd8ec7 | 274 | |
16b0e0fc | 275 | $ perl Configure --prefix=PROGRAM:[INSTALLS] --openssldir=SYS$MANAGER:[OPENSSL] |
79e259e3 | 276 | |
6ede7d73 | 277 | Note: if you do add options to the configuration command, please make sure |
1dc1ea18 | 278 | you've read more than just this Quick Start, such as relevant `NOTES-*` files, |
6ede7d73 DMSP |
279 | the options outline below, as configuration options may change the outcome |
280 | in otherwise unexpected ways. | |
281 | ||
6ede7d73 DMSP |
282 | Configuration Options |
283 | ===================== | |
284 | ||
9afbb681 DDO |
285 | There are several options to `./Configure` to customize the build (note that |
286 | for Windows, the defaults for `--prefix` and `--openssldir` depend on what | |
16b0e0fc | 287 | configuration is used and what Windows implementation OpenSSL is built on. |
1dc1ea18 | 288 | More notes on this in [NOTES-Windows.txt](NOTES-Windows.txt): |
6ede7d73 DMSP |
289 | |
290 | API Level | |
291 | --------- | |
292 | ||
293 | --api=x.y[.z] | |
294 | ||
295 | Build the OpenSSL libraries to support the API for the specified version. | |
296 | If [no-deprecated](#no-deprecated) is also given, don't build with support | |
297 | for deprecated APIs in or below the specified version number. For example, | |
298 | addding | |
299 | ||
300 | --api=1.1.0 no-deprecated | |
301 | ||
302 | will remove support for all APIs that were deprecated in OpenSSL version | |
303 | 1.1.0 or below. This is a rather specialized option for developers. | |
304 | If you just intend to remove all deprecated APIs up to the current version | |
305 | entirely, just specify [no-deprecated](#no-deprecated). | |
306 | If `--api` isn't given, it defaults to the current (minor) OpenSSL version. | |
307 | ||
6ede7d73 DMSP |
308 | Cross Compile Prefix |
309 | -------------------- | |
310 | ||
9afbb681 | 311 | --cross-compile-prefix=<PREFIX> |
6ede7d73 | 312 | |
9afbb681 | 313 | The `<PREFIX>` to include in front of commands for your toolchain. |
6ede7d73 | 314 | |
9afbb681 DDO |
315 | It is likely to have to end with dash, e.g. `a-b-c-` would invoke GNU compiler |
316 | as `a-b-c-gcc`, etc. Unfortunately cross-compiling is too case-specific to put | |
6ede7d73 | 317 | together one-size-fits-all instructions. You might have to pass more flags or |
16b0e0fc RL |
318 | set up environment variables to actually make it work. Android and iOS cases |
319 | are discussed in corresponding `Configurations/15-*.conf` files. But there are | |
320 | cases when this option alone is sufficient. For example to build the mingw64 | |
321 | target on Linux `--cross-compile-prefix=x86_64-w64-mingw32-` works. Naturally | |
322 | provided that mingw packages are installed. Today Debian and Ubuntu users | |
323 | have option to install a number of prepackaged cross-compilers along with | |
324 | corresponding run-time and development packages for "alien" hardware. To give | |
325 | another example `--cross-compile-prefix=mipsel-linux-gnu-` suffices in such | |
326 | case. | |
327 | ||
328 | For cross compilation, you must [configure manually](#manual-configuration). | |
329 | Also, note that `--openssldir` refers to target's file system, not one you are | |
330 | building on. | |
6ede7d73 | 331 | |
6ede7d73 DMSP |
332 | Build Type |
333 | ---------- | |
334 | ||
335 | --debug | |
336 | ||
337 | Build OpenSSL with debugging symbols and zero optimization level. | |
338 | ||
339 | --release | |
340 | ||
341 | Build OpenSSL without debugging symbols. This is the default. | |
342 | ||
6ede7d73 DMSP |
343 | Directories |
344 | ----------- | |
345 | ||
257e9d03 | 346 | ### libdir |
6ede7d73 DMSP |
347 | |
348 | --libdir=DIR | |
349 | ||
350 | The name of the directory under the top of the installation directory tree | |
351 | (see the `--prefix` option) where libraries will be installed. By default | |
9afbb681 | 352 | this is `lib/`. Note that on Windows only static libraries (`*.lib`) will |
6ede7d73 | 353 | be stored in this location. Shared libraries (`*.dll`) will always be |
9afbb681 | 354 | installed to the `bin/` directory. |
6ede7d73 | 355 | |
257e9d03 | 356 | ### openssldir |
6ede7d73 DMSP |
357 | |
358 | --openssldir=DIR | |
359 | ||
360 | Directory for OpenSSL configuration files, and also the default certificate | |
361 | and key store. Defaults are: | |
362 | ||
363 | Unix: /usr/local/ssl | |
364 | Windows: C:\Program Files\Common Files\SSL | |
365 | OpenVMS: SYS$COMMON:[OPENSSL-COMMON] | |
366 | ||
367 | For 32bit Windows applications on Windows 64bit (WOW64), always replace | |
368 | `C:\Program Files` by `C:\Program Files (x86)`. | |
369 | ||
257e9d03 | 370 | ### prefix |
6ede7d73 DMSP |
371 | |
372 | --prefix=DIR | |
373 | ||
374 | The top of the installation directory tree. Defaults are: | |
375 | ||
376 | Unix: /usr/local | |
377 | Windows: C:\Program Files\OpenSSL | |
378 | OpenVMS: SYS$COMMON:[OPENSSL-'version'] | |
379 | ||
6ede7d73 DMSP |
380 | Compiler Warnings |
381 | ----------------- | |
382 | ||
383 | --strict-warnings | |
384 | ||
385 | This is a developer flag that switches on various compiler options recommended | |
386 | for OpenSSL development. It only works when using gcc or clang as the compiler. | |
387 | If you are developing a patch for OpenSSL then it is recommended that you use | |
388 | this option where possible. | |
389 | ||
390 | ZLib Flags | |
391 | ---------- | |
392 | ||
257e9d03 | 393 | ### with-zlib-include |
6ede7d73 DMSP |
394 | |
395 | --with-zlib-include=DIR | |
396 | ||
397 | The directory for the location of the zlib include file. This option is only | |
bf4cdd4a | 398 | necessary if [zlib](#zlib) is used and the include file is not |
6ede7d73 DMSP |
399 | already on the system include path. |
400 | ||
257e9d03 | 401 | ### with-zlib-lib |
6ede7d73 DMSP |
402 | |
403 | --with-zlib-lib=LIB | |
404 | ||
405 | **On Unix**: this is the directory containing the zlib library. | |
406 | If not provided the system library path will be used. | |
407 | ||
408 | **On Windows:** this is the filename of the zlib library (with or | |
409 | without a path). This flag must be provided if the | |
9afbb681 DDO |
410 | [zlib-dynamic](#zlib-dynamic) option is not also used. If `zlib-dynamic` is used |
411 | then this flag is optional and defaults to `ZLIB1` if not provided. | |
6ede7d73 DMSP |
412 | |
413 | **On VMS:** this is the filename of the zlib library (with or without a path). | |
9afbb681 DDO |
414 | This flag is optional and if not provided then `GNV$LIBZSHR`, `GNV$LIBZSHR32` |
415 | or `GNV$LIBZSHR64` is used by default depending on the pointer size chosen. | |
6ede7d73 | 416 | |
6ede7d73 DMSP |
417 | Seeding the Random Generator |
418 | ---------------------------- | |
419 | ||
420 | --with-rand-seed=seed1[,seed2,...] | |
421 | ||
422 | A comma separated list of seeding methods which will be tried by OpenSSL | |
423 | in order to obtain random input (a.k.a "entropy") for seeding its | |
424 | cryptographically secure random number generator (CSPRNG). | |
425 | The current seeding methods are: | |
426 | ||
257e9d03 | 427 | ### os |
6ede7d73 DMSP |
428 | |
429 | Use a trusted operating system entropy source. | |
430 | This is the default method if such an entropy source exists. | |
431 | ||
257e9d03 | 432 | ### getrandom |
6ede7d73 DMSP |
433 | |
434 | Use the [getrandom(2)][man-getrandom] or equivalent system call. | |
435 | ||
436 | [man-getrandom]: http://man7.org/linux/man-pages/man2/getrandom.2.html | |
437 | ||
257e9d03 | 438 | ### devrandom |
6ede7d73 | 439 | |
9afbb681 DDO |
440 | Use the first device from the `DEVRANDOM` list which can be opened to read |
441 | random bytes. The `DEVRANDOM` preprocessor constant expands to | |
6ede7d73 DMSP |
442 | |
443 | "/dev/urandom","/dev/random","/dev/srandom" | |
444 | ||
445 | on most unix-ish operating systems. | |
446 | ||
257e9d03 | 447 | ### egd |
6ede7d73 DMSP |
448 | |
449 | Check for an entropy generating daemon. | |
b99c463d | 450 | This source is ignored by the FIPS provider. |
6ede7d73 | 451 | |
257e9d03 | 452 | ### rdcpu |
6ede7d73 | 453 | |
9afbb681 | 454 | Use the `RDSEED` or `RDRAND` command if provided by the CPU. |
6ede7d73 | 455 | |
257e9d03 | 456 | ### librandom |
6ede7d73 DMSP |
457 | |
458 | Use librandom (not implemented yet). | |
b99c463d | 459 | This source is ignored by the FIPS provider. |
6ede7d73 | 460 | |
257e9d03 | 461 | ### none |
6ede7d73 DMSP |
462 | |
463 | Disable automatic seeding. This is the default on some operating systems where | |
464 | no suitable entropy source exists, or no support for it is implemented yet. | |
b99c463d | 465 | This option is ignored by the FIPS provider. |
6ede7d73 DMSP |
466 | |
467 | For more information, see the section [Notes on random number generation][rng] | |
468 | at the end of this document. | |
469 | ||
470 | [rng]: #notes-on-random-number-generation | |
471 | ||
31214258 RS |
472 | Setting the FIPS HMAC key |
473 | ------------------------- | |
474 | ||
475 | --fips-key=value | |
476 | ||
477 | As part of its self-test validation, the FIPS module must verify itself | |
478 | by performing a SHA-256 HMAC computation on itself. The default key is | |
479 | the SHA256 value of "the holy handgrenade of antioch" and is sufficient | |
480 | for meeting the FIPS requirements. | |
481 | ||
482 | To change the key to a different value, use this flag. The value should | |
483 | be a hex string no more than 64 characters. | |
484 | ||
6ede7d73 DMSP |
485 | Enable and Disable Features |
486 | --------------------------- | |
487 | ||
8c1cbc72 GN |
488 | Feature options always come in pairs, an option to enable feature |
489 | `xxxx`, and an option to disable it: | |
6ede7d73 DMSP |
490 | |
491 | [ enable-xxxx | no-xxxx ] | |
492 | ||
493 | Whether a feature is enabled or disabled by default, depends on the feature. | |
494 | In the following list, always the non-default variant is documented: if | |
9afbb681 DDO |
495 | feature `xxxx` is disabled by default then `enable-xxxx` is documented and |
496 | if feature `xxxx` is enabled by default then `no-xxxx` is documented. | |
6ede7d73 | 497 | |
257e9d03 | 498 | ### no-afalgeng |
6ede7d73 DMSP |
499 | |
500 | Don't build the AFALG engine. | |
501 | ||
502 | This option will be forced on a platform that does not support AFALG. | |
503 | ||
257e9d03 | 504 | ### enable-ktls |
6ede7d73 DMSP |
505 | |
506 | Build with Kernel TLS support. | |
507 | ||
508 | This option will enable the use of the Kernel TLS data-path, which can improve | |
509 | performance and allow for the use of sendfile and splice system calls on | |
510 | TLS sockets. The Kernel may use TLS accelerators if any are available on the | |
511 | system. This option will be forced off on systems that do not support the | |
512 | Kernel TLS data-path. | |
513 | ||
257e9d03 | 514 | ### enable-asan |
6ede7d73 DMSP |
515 | |
516 | Build with the Address sanitiser. | |
517 | ||
518 | This is a developer option only. It may not work on all platforms and should | |
519 | never be used in production environments. It will only work when used with | |
520 | gcc or clang and should be used in conjunction with the [no-shared](#no-shared) | |
521 | option. | |
522 | ||
4f2271d5 SL |
523 | ### no-acvp_tests |
524 | ||
525 | Do not build support for Automated Cryptographic Validation Protocol (ACVP) | |
526 | tests. | |
527 | ||
528 | This is required for FIPS validation purposes. Certain ACVP tests require | |
529 | access to algorithm internals that are not normally accessible. | |
530 | Additional information related to ACVP can be found at | |
531 | <https://github.com/usnistgov/ACVP>. | |
532 | ||
257e9d03 | 533 | ### no-asm |
6ede7d73 DMSP |
534 | |
535 | Do not use assembler code. | |
536 | ||
537 | This should be viewed as debugging/troubleshooting option rather than for | |
538 | production use. On some platforms a small amount of assembler code may still | |
539 | be used even with this option. | |
540 | ||
257e9d03 | 541 | ### no-async |
6ede7d73 DMSP |
542 | |
543 | Do not build support for async operations. | |
544 | ||
257e9d03 | 545 | ### no-autoalginit |
6ede7d73 DMSP |
546 | |
547 | Don't automatically load all supported ciphers and digests. | |
548 | ||
549 | Typically OpenSSL will make available all of its supported ciphers and digests. | |
550 | For a statically linked application this may be undesirable if small executable | |
551 | size is an objective. This only affects libcrypto. Ciphers and digests will | |
9afbb681 DDO |
552 | have to be loaded manually using `EVP_add_cipher()` and `EVP_add_digest()` |
553 | if this option is used. This option will force a non-shared build. | |
6ede7d73 | 554 | |
257e9d03 | 555 | ### no-autoerrinit |
6ede7d73 DMSP |
556 | |
557 | Don't automatically load all libcrypto/libssl error strings. | |
558 | ||
559 | Typically OpenSSL will automatically load human readable error strings. For a | |
560 | statically linked application this may be undesirable if small executable size | |
561 | is an objective. | |
562 | ||
257e9d03 | 563 | ### no-autoload-config |
6ede7d73 | 564 | |
9afbb681 | 565 | Don't automatically load the default `openssl.cnf` file. |
6ede7d73 DMSP |
566 | |
567 | Typically OpenSSL will automatically load a system config file which configures | |
568 | default SSL options. | |
569 | ||
257e9d03 | 570 | ### enable-buildtest-c++ |
6ede7d73 DMSP |
571 | |
572 | While testing, generate C++ buildtest files that simply check that the public | |
573 | OpenSSL header files are usable standalone with C++. | |
574 | ||
575 | Enabling this option demands extra care. For any compiler flag given directly | |
576 | as configuration option, you must ensure that it's valid for both the C and | |
577 | the C++ compiler. If not, the C++ build test will most likely break. As an | |
9afbb681 | 578 | alternative, you can use the language specific variables, `CFLAGS` and `CXXFLAGS`. |
6ede7d73 | 579 | |
06f81af8 DDO |
580 | ### no-bulk |
581 | ||
582 | Build only some minimal set of features. | |
583 | This is a developer option used internally for CI build tests of the project. | |
584 | ||
257e9d03 | 585 | ### no-capieng |
6ede7d73 DMSP |
586 | |
587 | Don't build the CAPI engine. | |
588 | ||
589 | This option will be forced if on a platform that does not support CAPI. | |
590 | ||
257e9d03 | 591 | ### no-cmp |
6ede7d73 | 592 | |
9afbb681 DDO |
593 | Don't build support for Certificate Management Protocol (CMP) |
594 | and Certificate Request Message Format (CRMF). | |
6ede7d73 | 595 | |
257e9d03 | 596 | ### no-cms |
6ede7d73 DMSP |
597 | |
598 | Don't build support for Cryptographic Message Syntax (CMS). | |
599 | ||
257e9d03 | 600 | ### no-comp |
6ede7d73 DMSP |
601 | |
602 | Don't build support for SSL/TLS compression. | |
603 | ||
604 | If this option is enabled (the default), then compression will only work if | |
9afbb681 | 605 | the zlib or `zlib-dynamic` options are also chosen. |
6ede7d73 | 606 | |
257e9d03 | 607 | ### enable-crypto-mdebug |
6ede7d73 | 608 | |
9afbb681 | 609 | This now only enables the `failed-malloc` feature. |
6ede7d73 | 610 | |
257e9d03 | 611 | ### enable-crypto-mdebug-backtrace |
6ede7d73 DMSP |
612 | |
613 | This is a no-op; the project uses the compiler's address/leak sanitizer instead. | |
614 | ||
257e9d03 | 615 | ### no-ct |
6ede7d73 DMSP |
616 | |
617 | Don't build support for Certificate Transparency (CT). | |
618 | ||
257e9d03 | 619 | ### no-deprecated |
6ede7d73 DMSP |
620 | |
621 | Don't build with support for deprecated APIs up until and including the version | |
622 | given with `--api` (or the current version, if `--api` wasn't specified). | |
623 | ||
257e9d03 | 624 | ### no-dgram |
6ede7d73 DMSP |
625 | |
626 | Don't build support for datagram based BIOs. | |
627 | ||
628 | Selecting this option will also force the disabling of DTLS. | |
629 | ||
257e9d03 | 630 | ### no-dso |
6ede7d73 DMSP |
631 | |
632 | Don't build support for loading Dynamic Shared Objects (DSO) | |
633 | ||
257e9d03 | 634 | ### enable-devcryptoeng |
6ede7d73 DMSP |
635 | |
636 | Build the `/dev/crypto` engine. | |
637 | ||
638 | This option is automatically selected on the BSD platform, in which case it can | |
9afbb681 | 639 | be disabled with `no-devcryptoeng`. |
6ede7d73 | 640 | |
257e9d03 | 641 | ### no-dynamic-engine |
6ede7d73 DMSP |
642 | |
643 | Don't build the dynamically loaded engines. | |
644 | ||
645 | This only has an effect in a shared build. | |
646 | ||
257e9d03 | 647 | ### no-ec |
6ede7d73 DMSP |
648 | |
649 | Don't build support for Elliptic Curves. | |
650 | ||
257e9d03 | 651 | ### no-ec2m |
6ede7d73 DMSP |
652 | |
653 | Don't build support for binary Elliptic Curves | |
654 | ||
257e9d03 | 655 | ### enable-ec_nistp_64_gcc_128 |
6ede7d73 DMSP |
656 | |
657 | Enable support for optimised implementations of some commonly used NIST | |
658 | elliptic curves. | |
659 | ||
660 | This option is only supported on platforms: | |
661 | ||
662 | - with little-endian storage of non-byte types | |
663 | - that tolerate misaligned memory references | |
664 | - where the compiler: | |
665 | - supports the non-standard type `__uint128_t` | |
666 | - defines the built-in macro `__SIZEOF_INT128__` | |
667 | ||
257e9d03 | 668 | ### enable-egd |
6ede7d73 DMSP |
669 | |
670 | Build support for gathering entropy from the Entropy Gathering Daemon (EGD). | |
671 | ||
257e9d03 | 672 | ### no-engine |
6ede7d73 DMSP |
673 | |
674 | Don't build support for loading engines. | |
675 | ||
257e9d03 | 676 | ### no-err |
6ede7d73 DMSP |
677 | |
678 | Don't compile in any error strings. | |
679 | ||
257e9d03 | 680 | ### enable-external-tests |
6ede7d73 DMSP |
681 | |
682 | Enable building of integration with external test suites. | |
683 | ||
684 | This is a developer option and may not work on all platforms. The following | |
685 | external test suites are currently supported: | |
686 | ||
687 | - BoringSSL test suite | |
688 | - Python PYCA/Cryptography test suite | |
689 | - krb5 test suite | |
690 | ||
036cbb6b DDO |
691 | See the file [test/README-external.md](test/README-external.md) |
692 | for further details. | |
6ede7d73 | 693 | |
257e9d03 | 694 | ### no-filenames |
6ede7d73 DMSP |
695 | |
696 | Don't compile in filename and line number information (e.g. for errors and | |
697 | memory allocation). | |
698 | ||
257e9d03 | 699 | ### no-fips |
6ede7d73 DMSP |
700 | |
701 | Don't compile the FIPS provider | |
702 | ||
991a6bb5 SL |
703 | ### no-fips-securitychecks |
704 | ||
705 | Don't perform FIPS module run-time checks related to enforcement of security | |
706 | parameters such as minimum security strength of keys. | |
707 | ||
257e9d03 | 708 | ### enable-fuzz-libfuzzer, enable-fuzz-afl |
6ede7d73 DMSP |
709 | |
710 | Build with support for fuzzing using either libfuzzer or AFL. | |
711 | ||
712 | These are developer options only. They may not work on all platforms and | |
713 | should never be used in production environments. | |
714 | ||
715 | See the file [fuzz/README.md](fuzz/README.md) for further details. | |
716 | ||
257e9d03 | 717 | ### no-gost |
6ede7d73 DMSP |
718 | |
719 | Don't build support for GOST based ciphersuites. | |
720 | ||
721 | Note that if this feature is enabled then GOST ciphersuites are only available | |
722 | if the GOST algorithms are also available through loading an externally supplied | |
723 | engine. | |
724 | ||
257e9d03 | 725 | ### no-legacy |
6ede7d73 DMSP |
726 | |
727 | Don't build the legacy provider. | |
728 | ||
729 | Disabling this also disables the legacy algorithms: MD2 (already disabled by default). | |
730 | ||
257e9d03 | 731 | ### no-makedepend |
6ede7d73 DMSP |
732 | |
733 | Don't generate dependencies. | |
734 | ||
257e9d03 | 735 | ### no-module |
79e259e3 | 736 | |
6ede7d73 | 737 | Don't build any dynamically loadable engines. |
917a1b2e | 738 | |
9afbb681 | 739 | This also implies `no-dynamic-engine`. |
917a1b2e | 740 | |
257e9d03 | 741 | ### no-multiblock |
917a1b2e | 742 | |
6ede7d73 | 743 | Don't build support for writing multiple records in one go in libssl |
917a1b2e | 744 | |
6ede7d73 | 745 | Note: this is a different capability to the pipelining functionality. |
917a1b2e | 746 | |
257e9d03 | 747 | ### no-nextprotoneg |
917a1b2e | 748 | |
6ede7d73 | 749 | Don't build support for the Next Protocol Negotiation (NPN) TLS extension. |
c9f06e7f | 750 | |
257e9d03 | 751 | ### no-ocsp |
c9f06e7f | 752 | |
6ede7d73 | 753 | Don't build support for Online Certificate Status Protocol (OCSP). |
b32b8961 | 754 | |
257e9d03 | 755 | ### no-padlockeng |
2acd8ec7 | 756 | |
6ede7d73 | 757 | Don't build the padlock engine. |
2acd8ec7 | 758 | |
257e9d03 | 759 | ### no-hw-padlock |
c9f06e7f | 760 | |
9afbb681 | 761 | As synonym for `no-padlockeng`. Deprecated and should not be used. |
c9f06e7f | 762 | |
257e9d03 | 763 | ### no-pic |
b1fe6b43 | 764 | |
6ede7d73 | 765 | Don't build with support for Position Independent Code. |
b1fe6b43 | 766 | |
257e9d03 | 767 | ### no-pinshared |
79e259e3 | 768 | |
6ede7d73 | 769 | Don't pin the shared libraries. |
79e259e3 | 770 | |
6ede7d73 DMSP |
771 | By default OpenSSL will attempt to stay in memory until the process exits. |
772 | This is so that libcrypto and libssl can be properly cleaned up automatically | |
9afbb681 DDO |
773 | via an `atexit()` handler. The handler is registered by libcrypto and cleans |
774 | up both libraries. On some platforms the `atexit()` handler will run on unload of | |
6ede7d73 DMSP |
775 | libcrypto (if it has been dynamically loaded) rather than at process exit. This |
776 | option can be used to stop OpenSSL from attempting to stay in memory until the | |
777 | process exits. This could lead to crashes if either libcrypto or libssl have | |
778 | already been unloaded at the point that the atexit handler is invoked, e.g. on a | |
9afbb681 | 779 | platform which calls `atexit()` on unload of the library, and libssl is unloaded |
6ede7d73 | 780 | before libcrypto then a crash is likely to happen. Applications can suppress |
9afbb681 DDO |
781 | running of the `atexit()` handler at run time by using the |
782 | `OPENSSL_INIT_NO_ATEXIT` option to `OPENSSL_init_crypto()`. | |
783 | See the man page for it for further details. | |
2acd8ec7 | 784 | |
257e9d03 | 785 | ### no-posix-io |
2acd8ec7 | 786 | |
6ede7d73 | 787 | Don't use POSIX IO capabilities. |
2acd8ec7 | 788 | |
257e9d03 | 789 | ### no-psk |
79e259e3 | 790 | |
6ede7d73 | 791 | Don't build support for Pre-Shared Key based ciphersuites. |
79e259e3 | 792 | |
257e9d03 | 793 | ### no-rdrand |
79e259e3 | 794 | |
6ede7d73 | 795 | Don't use hardware RDRAND capabilities. |
79e259e3 | 796 | |
257e9d03 | 797 | ### no-rfc3779 |
5bb9e2b4 | 798 | |
6ede7d73 DMSP |
799 | Don't build support for RFC3779, "X.509 Extensions for IP Addresses and |
800 | AS Identifiers". | |
79e259e3 | 801 | |
257e9d03 | 802 | ### sctp |
2acd8ec7 | 803 | |
6ede7d73 | 804 | Build support for Stream Control Transmission Protocol (SCTP). |
2acd8ec7 | 805 | |
257e9d03 | 806 | ### no-shared |
2acd8ec7 | 807 | |
6ede7d73 | 808 | Do not create shared libraries, only static ones. |
2acd8ec7 | 809 | |
6ede7d73 | 810 | See [Notes on shared libraries](#notes-on-shared-libraries) below. |
2acd8ec7 | 811 | |
257e9d03 | 812 | ### no-sock |
2acd8ec7 | 813 | |
6ede7d73 | 814 | Don't build support for socket BIOs. |
2acd8ec7 | 815 | |
257e9d03 | 816 | ### no-srp |
2acd8ec7 | 817 | |
6ede7d73 DMSP |
818 | Don't build support for Secure Remote Password (SRP) protocol or |
819 | SRP based ciphersuites. | |
2acd8ec7 | 820 | |
257e9d03 | 821 | ### no-srtp |
b32b8961 | 822 | |
6ede7d73 | 823 | Don't build Secure Real-Time Transport Protocol (SRTP) support. |
b32b8961 | 824 | |
257e9d03 | 825 | ### no-sse2 |
2acd8ec7 | 826 | |
6ede7d73 | 827 | Exclude SSE2 code paths from 32-bit x86 assembly modules. |
79e259e3 | 828 | |
6ede7d73 DMSP |
829 | Normally SSE2 extension is detected at run-time, but the decision whether or not |
830 | the machine code will be executed is taken solely on CPU capability vector. This | |
831 | means that if you happen to run OS kernel which does not support SSE2 extension | |
832 | on Intel P4 processor, then your application might be exposed to "illegal | |
833 | instruction" exception. There might be a way to enable support in kernel, e.g. | |
9afbb681 | 834 | FreeBSD kernel can be compiled with `CPU_ENABLE_SSE`, and there is a way to |
6ede7d73 | 835 | disengage SSE2 code paths upon application start-up, but if you aim for wider |
9afbb681 DDO |
836 | "audience" running such kernel, consider `no-sse2`. Both the `386` and `no-asm` |
837 | options imply `no-sse2`. | |
79e259e3 | 838 | |
257e9d03 | 839 | ### enable-ssl-trace |
79e259e3 | 840 | |
6ede7d73 | 841 | Build with the SSL Trace capabilities. |
1af66bb7 | 842 | |
9afbb681 | 843 | This adds the `-trace` option to `s_client` and `s_server`. |
1af66bb7 | 844 | |
257e9d03 | 845 | ### no-static-engine |
1af66bb7 | 846 | |
6ede7d73 | 847 | Don't build the statically linked engines. |
1af66bb7 | 848 | |
6ede7d73 | 849 | This only has an impact when not built "shared". |
1af66bb7 | 850 | |
257e9d03 | 851 | ### no-stdio |
1af66bb7 | 852 | |
3a0b3cc9 | 853 | Don't use anything from the C header file `stdio.h` that makes use of the `FILE` |
6ede7d73 DMSP |
854 | type. Only libcrypto and libssl can be built in this way. Using this option will |
855 | suppress building the command line applications. Additionally, since the OpenSSL | |
856 | tests also use the command line applications, the tests will also be skipped. | |
b1fe6b43 | 857 | |
257e9d03 | 858 | ### no-tests |
79e259e3 | 859 | |
6ede7d73 | 860 | Don't build test programs or run any tests. |
79e259e3 | 861 | |
257e9d03 | 862 | ### no-threads |
6616429d | 863 | |
6ede7d73 | 864 | Don't build with support for multi-threaded applications. |
2e996acf | 865 | |
257e9d03 | 866 | ### threads |
2acd8ec7 | 867 | |
6ede7d73 | 868 | Build with support for multi-threaded applications. Most platforms will enable |
8c1cbc72 | 869 | this by default. However, if on a platform where this is not the case then this |
6ede7d73 | 870 | will usually require additional system-dependent options! |
2e996acf | 871 | |
6ede7d73 | 872 | See [Notes on multi-threading](#notes-on-multi-threading) below. |
e3d9a6b5 | 873 | |
257e9d03 | 874 | ### enable-trace |
b32b8961 | 875 | |
6ede7d73 | 876 | Build with support for the integrated tracing api. |
2e996acf | 877 | |
6ede7d73 | 878 | See manual pages OSSL_trace_set_channel(3) and OSSL_trace_enabled(3) for details. |
2e996acf | 879 | |
257e9d03 | 880 | ### no-ts |
a73d990e | 881 | |
6ede7d73 | 882 | Don't build Time Stamping (TS) Authority support. |
2e996acf | 883 | |
257e9d03 | 884 | ### enable-ubsan |
2e996acf | 885 | |
6ede7d73 | 886 | Build with the Undefined Behaviour sanitiser (UBSAN). |
2e996acf | 887 | |
6ede7d73 | 888 | This is a developer option only. It may not work on all platforms and should |
9afbb681 DDO |
889 | never be used in production environments. It will only work when used with |
890 | gcc or clang and should be used in conjunction with the `-DPEDANTIC` option | |
6ede7d73 | 891 | (or the `--strict-warnings` option). |
d40b0622 | 892 | |
257e9d03 | 893 | ### no-ui-console |
2e996acf | 894 | |
301ea192 | 895 | Don't build with the User Interface (UI) console method |
b1fe6b43 | 896 | |
301ea192 | 897 | The User Interface console method enables text based console prompts. |
b3e718e2 | 898 | |
257e9d03 | 899 | ### enable-unit-test |
79e259e3 | 900 | |
6ede7d73 | 901 | Enable additional unit test APIs. |
2acd8ec7 | 902 | |
6ede7d73 | 903 | This should not typically be used in production deployments. |
7c03bb9f | 904 | |
257e9d03 | 905 | ### no-uplink |
2acd8ec7 | 906 | |
6ede7d73 | 907 | Don't build support for UPLINK interface. |
2acd8ec7 | 908 | |
257e9d03 | 909 | ### enable-weak-ssl-ciphers |
b0940b33 | 910 | |
6ede7d73 | 911 | Build support for SSL/TLS ciphers that are considered "weak" |
fa28bfd6 | 912 | |
6ede7d73 | 913 | Enabling this includes for example the RC4 based ciphersuites. |
fa28bfd6 | 914 | |
257e9d03 | 915 | ### zlib |
fa28bfd6 | 916 | |
6ede7d73 | 917 | Build with support for zlib compression/decompression. |
fa28bfd6 | 918 | |
257e9d03 | 919 | ### zlib-dynamic |
fa28bfd6 | 920 | |
6ede7d73 DMSP |
921 | Like the zlib option, but has OpenSSL load the zlib library dynamically |
922 | when needed. | |
fa28bfd6 | 923 | |
6ede7d73 | 924 | This is only supported on systems where loading of shared libraries is supported. |
fa28bfd6 | 925 | |
257e9d03 | 926 | ### 386 |
fa28bfd6 | 927 | |
6ede7d73 | 928 | In 32-bit x86 builds, use the 80386 instruction set only in assembly modules |
fa28bfd6 | 929 | |
6ede7d73 DMSP |
930 | The default x86 code is more efficient, but requires at least an 486 processor. |
931 | Note: This doesn't affect compiler generated code, so this option needs to be | |
932 | accompanied by a corresponding compiler-specific option. | |
fa28bfd6 | 933 | |
257e9d03 | 934 | ### no-{protocol} |
bf01fbbf | 935 | |
6ede7d73 | 936 | no-{ssl|ssl3|tls|tls1|tls1_1|tls1_2|tls1_3|dtls|dtls1|dtls1_2} |
4fd53220 | 937 | |
6ede7d73 | 938 | Don't build support for negotiating the specified SSL/TLS protocol. |
b3e718e2 | 939 | |
9afbb681 DDO |
940 | If `no-tls` is selected then all of `tls1`, `tls1_1`, `tls1_2` and `tls1_3` |
941 | are disabled. | |
942 | Similarly `no-dtls` will disable `dtls1` and `dtls1_2`. The `no-ssl` option is | |
943 | synonymous with `no-ssl3`. Note this only affects version negotiation. | |
6ede7d73 DMSP |
944 | OpenSSL will still provide the methods for applications to explicitly select |
945 | the individual protocol versions. | |
b3e718e2 | 946 | |
257e9d03 | 947 | ### no-{protocol}-method |
b3e718e2 | 948 | |
6ede7d73 | 949 | no-{ssl|ssl3|tls|tls1|tls1_1|tls1_2|tls1_3|dtls|dtls1|dtls1_2}-method |
b3e718e2 | 950 | |
9afbb681 | 951 | Analogous to `no-{protocol}` but in addition do not build the methods for |
6ede7d73 | 952 | applications to explicitly select individual protocol versions. Note that there |
9afbb681 | 953 | is no `no-tls1_3-method` option because there is no application method for |
6ede7d73 | 954 | TLSv1.3. |
b3e718e2 | 955 | |
6ede7d73 | 956 | Using individual protocol methods directly is deprecated. Applications should |
9afbb681 | 957 | use `TLS_method()` instead. |
b3e718e2 | 958 | |
257e9d03 | 959 | ### enable-{algorithm} |
b3e718e2 | 960 | |
6ede7d73 | 961 | enable-{md2|rc5} |
b3e718e2 | 962 | |
6ede7d73 | 963 | Build with support for the specified algorithm. |
b3e718e2 | 964 | |
257e9d03 | 965 | ### no-{algorithm} |
b3e718e2 | 966 | |
6ede7d73 DMSP |
967 | no-{aria|bf|blake2|camellia|cast|chacha|cmac| |
968 | des|dh|dsa|ecdh|ecdsa|idea|md4|mdc2|ocb| | |
969 | poly1305|rc2|rc4|rmd160|scrypt|seed| | |
970 | siphash|siv|sm2|sm3|sm4|whirlpool} | |
d0631327 | 971 | |
6ede7d73 | 972 | Build without support for the specified algorithm. |
d0631327 | 973 | |
9afbb681 | 974 | The `ripemd` algorithm is deprecated and if used is synonymous with `rmd160`. |
d0631327 | 975 | |
257e9d03 | 976 | ### Compiler-specific options |
d0631327 | 977 | |
6ede7d73 | 978 | -Dxxx, -Ixxx, -Wp, -lxxx, -Lxxx, -Wl, -rpath, -R, -framework, -static |
d0631327 | 979 | |
6ede7d73 DMSP |
980 | These system specific options will be recognised and passed through to the |
981 | compiler to allow you to define preprocessor symbols, specify additional | |
982 | libraries, library directories or other compiler options. It might be worth | |
983 | noting that some compilers generate code specifically for processor the | |
984 | compiler currently executes on. This is not necessarily what you might have | |
985 | in mind, since it might be unsuitable for execution on other, typically older, | |
986 | processor. Consult your compiler documentation. | |
987 | ||
988 | Take note of the [Environment Variables](#environment-variables) documentation | |
989 | below and how these flags interact with those variables. | |
990 | ||
991 | -xxx, +xxx, /xxx | |
992 | ||
993 | Additional options that are not otherwise recognised are passed through as | |
994 | they are to the compiler as well. Unix-style options beginning with a | |
9afbb681 | 995 | `-` or `+` and Windows-style options beginning with a `/` are recognized. |
6ede7d73 DMSP |
996 | Again, consult your compiler documentation. |
997 | ||
998 | If the option contains arguments separated by spaces, then the URL-style | |
9afbb681 DDO |
999 | notation `%20` can be used for the space character in order to avoid having |
1000 | to quote the option. For example, `-opt%20arg` gets expanded to `-opt arg`. | |
6ede7d73 DMSP |
1001 | In fact, any ASCII character can be encoded as %xx using its hexadecimal |
1002 | encoding. | |
1003 | ||
1004 | Take note of the [Environment Variables](#environment-variables) documentation | |
1005 | below and how these flags interact with those variables. | |
1006 | ||
257e9d03 | 1007 | ### Environment Variables |
6ede7d73 DMSP |
1008 | |
1009 | VAR=value | |
1010 | ||
9afbb681 | 1011 | Assign the given value to the environment variable `VAR` for `Configure`. |
6ede7d73 DMSP |
1012 | |
1013 | These work just like normal environment variable assignments, but are supported | |
1014 | on all platforms and are confined to the configuration scripts only. | |
1015 | These assignments override the corresponding value in the inherited environment, | |
1016 | if there is one. | |
1017 | ||
3a0b3cc9 | 1018 | The following variables are used as "`make` variables" and can be used as an |
6ede7d73 DMSP |
1019 | alternative to giving preprocessor, compiler and linker options directly as |
1020 | configuration. The following variables are supported: | |
1021 | ||
1022 | AR The static library archiver. | |
1023 | ARFLAGS Flags for the static library archiver. | |
1024 | AS The assembler compiler. | |
1025 | ASFLAGS Flags for the assembler compiler. | |
1026 | CC The C compiler. | |
1027 | CFLAGS Flags for the C compiler. | |
1028 | CXX The C++ compiler. | |
1029 | CXXFLAGS Flags for the C++ compiler. | |
1030 | CPP The C/C++ preprocessor. | |
1031 | CPPFLAGS Flags for the C/C++ preprocessor. | |
1032 | CPPDEFINES List of CPP macro definitions, separated | |
1033 | by a platform specific character (':' or | |
1034 | space for Unix, ';' for Windows, ',' for | |
1035 | VMS). This can be used instead of using | |
1036 | -D (or what corresponds to that on your | |
1037 | compiler) in CPPFLAGS. | |
1038 | CPPINCLUDES List of CPP inclusion directories, separated | |
1039 | the same way as for CPPDEFINES. This can | |
1040 | be used instead of -I (or what corresponds | |
1041 | to that on your compiler) in CPPFLAGS. | |
1042 | HASHBANGPERL Perl invocation to be inserted after '#!' | |
1043 | in public perl scripts (only relevant on | |
1044 | Unix). | |
1045 | LD The program linker (not used on Unix, $(CC) | |
1046 | is used there). | |
1047 | LDFLAGS Flags for the shared library, DSO and | |
1048 | program linker. | |
1049 | LDLIBS Extra libraries to use when linking. | |
1050 | Takes the form of a space separated list | |
1051 | of library specifications on Unix and | |
1052 | Windows, and as a comma separated list of | |
1053 | libraries on VMS. | |
1054 | RANLIB The library archive indexer. | |
1055 | RC The Windows resource compiler. | |
1056 | RCFLAGS Flags for the Windows resource compiler. | |
1057 | RM The command to remove files and directories. | |
1058 | ||
1059 | These cannot be mixed with compiling/linking flags given on the command line. | |
1060 | In other words, something like this isn't permitted. | |
1061 | ||
16b0e0fc | 1062 | $ ./Configure -DFOO CPPFLAGS=-DBAR -DCOOKIE |
6ede7d73 DMSP |
1063 | |
1064 | Backward compatibility note: | |
1065 | ||
1066 | To be compatible with older configuration scripts, the environment variables | |
1067 | are ignored if compiling/linking flags are given on the command line, except | |
1068 | for the following: | |
1069 | ||
1070 | AR, CC, CXX, CROSS_COMPILE, HASHBANGPERL, PERL, RANLIB, RC, and WINDRES | |
1071 | ||
9afbb681 | 1072 | For example, the following command will not see `-DBAR`: |
6ede7d73 | 1073 | |
16b0e0fc | 1074 | $ CPPFLAGS=-DBAR ./Configure -DCOOKIE |
6ede7d73 DMSP |
1075 | |
1076 | However, the following will see both set variables: | |
1077 | ||
16b0e0fc | 1078 | $ CC=gcc CROSS_COMPILE=x86_64-w64-mingw32- ./Configure -DCOOKIE |
6ede7d73 | 1079 | |
9afbb681 | 1080 | If `CC` is set, it is advisable to also set `CXX` to ensure both the C and C++ |
6ede7d73 | 1081 | compiler are in the same "family". This becomes relevant with |
9afbb681 | 1082 | `enable-external-tests` and `enable-buildtest-c++`. |
6ede7d73 | 1083 | |
257e9d03 | 1084 | ### Reconfigure |
6ede7d73 DMSP |
1085 | |
1086 | reconf | |
1087 | reconfigure | |
1088 | ||
1089 | Reconfigure from earlier data. | |
1090 | ||
16b0e0fc | 1091 | This fetches the previous command line options and environment from data |
9afbb681 | 1092 | saved in `configdata.pm` and runs the configuration process again, using |
16b0e0fc | 1093 | these options and environment. Note: NO other option is permitted together |
9afbb681 | 1094 | with `reconf`. Note: The original configuration saves away values for ALL |
16b0e0fc RL |
1095 | environment variables that were used, and if they weren't defined, they are |
1096 | still saved away with information that they weren't originally defined. | |
1097 | This information takes precedence over environment variables that are | |
1098 | defined when reconfiguring. | |
6ede7d73 DMSP |
1099 | |
1100 | Displaying configuration data | |
1101 | ----------------------------- | |
1102 | ||
1103 | The configuration script itself will say very little, and finishes by | |
9afbb681 | 1104 | creating `configdata.pm`. This perl module can be loaded by other scripts |
6ede7d73 DMSP |
1105 | to find all the configuration data, and it can also be used as a script to |
1106 | display all sorts of configuration data in a human readable form. | |
1107 | ||
1108 | For more information, please do: | |
1109 | ||
1110 | $ ./configdata.pm --help # Unix | |
1111 | ||
1112 | or | |
1113 | ||
1114 | $ perl configdata.pm --help # Windows and VMS | |
1115 | ||
1116 | Installation Steps in Detail | |
1117 | ============================ | |
1118 | ||
1119 | Configure OpenSSL | |
1120 | ----------------- | |
1121 | ||
257e9d03 | 1122 | ### Automatic Configuration |
6ede7d73 DMSP |
1123 | |
1124 | On some platform a `config` script is available which attempts to guess | |
1125 | your operating system (and compiler, if necessary) and calls the `Configure` | |
1126 | Perl script with appropriate target based on its guess. Further options can | |
1127 | be supplied to the `config` script, which will be passed on to the `Configure` | |
1128 | script. | |
1129 | ||
257e9d03 | 1130 | #### Unix / Linux / macOS |
6ede7d73 | 1131 | |
16b0e0fc | 1132 | $ ./Configure [[ options ]] |
6ede7d73 | 1133 | |
257e9d03 | 1134 | #### OpenVMS |
6ede7d73 | 1135 | |
16b0e0fc | 1136 | $ perl Configure [[ options ]] |
6ede7d73 | 1137 | |
257e9d03 | 1138 | #### Windows |
6ede7d73 | 1139 | |
16b0e0fc | 1140 | $ perl Configure [[ options ]] |
6ede7d73 | 1141 | |
257e9d03 | 1142 | ### Manual Configuration |
6ede7d73 DMSP |
1143 | |
1144 | OpenSSL knows about a range of different operating system, hardware and | |
1145 | compiler combinations. To see the ones it knows about, run | |
1146 | ||
16b0e0fc | 1147 | $ ./Configure LIST # Unix |
6ede7d73 DMSP |
1148 | |
1149 | or | |
1150 | ||
16b0e0fc | 1151 | $ perl Configure LIST # All other platforms |
6ede7d73 DMSP |
1152 | |
1153 | For the remainder of this text, the Unix form will be used in all examples. | |
1154 | Please use the appropriate form for your platform. | |
1155 | ||
1156 | Pick a suitable name from the list that matches your system. For most | |
9afbb681 | 1157 | operating systems there is a choice between using cc or gcc. |
6ede7d73 | 1158 | When you have identified your system (and if necessary compiler) use this |
9afbb681 | 1159 | name as the argument to `Configure`. For example, a `linux-elf` user would |
6ede7d73 DMSP |
1160 | run: |
1161 | ||
1162 | $ ./Configure linux-elf [[ options ]] | |
1163 | ||
257e9d03 | 1164 | ### Creating your own Configuration |
6ede7d73 DMSP |
1165 | |
1166 | If your system isn't listed, you will have to create a configuration | |
9afbb681 | 1167 | file named `Configurations/{{ something }}.conf` and add the correct |
6ede7d73 | 1168 | configuration for your system. See the available configs as examples |
036cbb6b DDO |
1169 | and read [Configurations/README.md](Configurations/README.md) and |
1170 | [Configurations/README-design.md](Configurations/README-design.md) | |
3a0b3cc9 | 1171 | for more information. |
6ede7d73 | 1172 | |
9afbb681 | 1173 | The generic configurations `cc` or `gcc` should usually work on 32 bit |
6ede7d73 DMSP |
1174 | Unix-like systems. |
1175 | ||
9afbb681 DDO |
1176 | `Configure` creates a build file (`Makefile` on Unix, `makefile` on Windows |
1177 | and `descrip.mms` on OpenVMS) from a suitable template in `Configurations/`, | |
1178 | and defines various macros in `include/openssl/configuration.h` (generated | |
1179 | from `include/openssl/configuration.h.in`. | |
6ede7d73 | 1180 | |
257e9d03 | 1181 | ### Out of Tree Builds |
6ede7d73 DMSP |
1182 | |
1183 | OpenSSL can be configured to build in a build directory separate from the | |
1184 | source code directory. It's done by placing yourself in some other | |
1185 | directory and invoking the configuration commands from there. | |
1186 | ||
257e9d03 | 1187 | #### Unix example |
6ede7d73 DMSP |
1188 | |
1189 | $ mkdir /var/tmp/openssl-build | |
1190 | $ cd /var/tmp/openssl-build | |
16b0e0fc | 1191 | $ /PATH/TO/OPENSSL/SOURCE/Configure [[ options ]] |
6ede7d73 | 1192 | |
257e9d03 | 1193 | #### OpenVMS example |
6ede7d73 DMSP |
1194 | |
1195 | $ set default sys$login: | |
1196 | $ create/dir [.tmp.openssl-build] | |
1197 | $ set default [.tmp.openssl-build] | |
16b0e0fc | 1198 | $ perl D:[PATH.TO.OPENSSL.SOURCE]Configure [[ options ]] |
6ede7d73 | 1199 | |
257e9d03 | 1200 | #### Windows example |
6ede7d73 DMSP |
1201 | |
1202 | $ C: | |
1203 | $ mkdir \temp-openssl | |
1204 | $ cd \temp-openssl | |
16b0e0fc | 1205 | $ perl d:\PATH\TO\OPENSSL\SOURCE\Configure [[ options ]] |
6ede7d73 | 1206 | |
9afbb681 | 1207 | Paths can be relative just as well as absolute. `Configure` will do its best |
6ede7d73 DMSP |
1208 | to translate them to relative paths whenever possible. |
1209 | ||
6ede7d73 DMSP |
1210 | Build OpenSSL |
1211 | ------------- | |
1212 | ||
1213 | Build OpenSSL by running: | |
1214 | ||
1215 | $ make # Unix | |
1216 | $ mms ! (or mmk) OpenVMS | |
1217 | $ nmake # Windows | |
1218 | ||
9afbb681 | 1219 | This will build the OpenSSL libraries (`libcrypto.a` and `libssl.a` on |
6ede7d73 | 1220 | Unix, corresponding on other platforms) and the OpenSSL binary |
9afbb681 DDO |
1221 | (`openssl`). The libraries will be built in the top-level directory, |
1222 | and the binary will be in the `apps/` subdirectory. | |
6ede7d73 DMSP |
1223 | |
1224 | If the build fails, take a look at the [Build Failures](#build-failures) | |
1225 | subsection of the [Troubleshooting](#troubleshooting) section. | |
1226 | ||
1227 | Test OpenSSL | |
1228 | ------------ | |
1229 | ||
1230 | After a successful build, and before installing, the libraries should | |
1231 | be tested. Run: | |
1232 | ||
1233 | $ make test # Unix | |
1234 | $ mms test ! OpenVMS | |
1235 | $ nmake test # Windows | |
1236 | ||
1237 | **Warning:** you MUST run the tests from an unprivileged account (or disable | |
1238 | your privileges temporarily if your platform allows it). | |
1239 | ||
036cbb6b DDO |
1240 | See [test/README.md](test/README.md) for further details how run tests. |
1241 | ||
1242 | See [test/README-dev.md](test/README-dev.md) for guidelines on adding tests. | |
6ede7d73 | 1243 | |
6ede7d73 DMSP |
1244 | Install OpenSSL |
1245 | --------------- | |
1246 | ||
1247 | If everything tests ok, install OpenSSL with | |
1248 | ||
1249 | $ make install # Unix | |
1250 | $ mms install ! OpenVMS | |
1251 | $ nmake install # Windows | |
1252 | ||
1253 | Note that in order to perform the install step above you need to have | |
1254 | appropriate permissions to write to the installation directory. | |
1255 | ||
1256 | The above commands will install all the software components in this | |
9afbb681 | 1257 | directory tree under `<PREFIX>` (the directory given with `--prefix` or |
6ede7d73 DMSP |
1258 | its default): |
1259 | ||
257e9d03 | 1260 | ### Unix / Linux / macOS |
6ede7d73 DMSP |
1261 | |
1262 | bin/ Contains the openssl binary and a few other | |
1263 | utility scripts. | |
1264 | include/openssl | |
1265 | Contains the header files needed if you want | |
1266 | to build your own programs that use libcrypto | |
1267 | or libssl. | |
1268 | lib Contains the OpenSSL library files. | |
1269 | lib/engines Contains the OpenSSL dynamically loadable engines. | |
1270 | ||
1271 | share/man/man1 Contains the OpenSSL command line man-pages. | |
1272 | share/man/man3 Contains the OpenSSL library calls man-pages. | |
1273 | share/man/man5 Contains the OpenSSL configuration format man-pages. | |
1274 | share/man/man7 Contains the OpenSSL other misc man-pages. | |
1275 | ||
1276 | share/doc/openssl/html/man1 | |
1277 | share/doc/openssl/html/man3 | |
1278 | share/doc/openssl/html/man5 | |
1279 | share/doc/openssl/html/man7 | |
1280 | Contains the HTML rendition of the man-pages. | |
1281 | ||
257e9d03 | 1282 | ### OpenVMS |
6ede7d73 | 1283 | |
9afbb681 DDO |
1284 | 'arch' is replaced with the architecture name, `Alpha` or `ia64`, |
1285 | 'sover' is replaced with the shared library version (`0101` for 1.1), and | |
6ede7d73 DMSP |
1286 | 'pz' is replaced with the pointer size OpenSSL was built with: |
1287 | ||
1288 | [.EXE.'arch'] Contains the openssl binary. | |
1289 | [.EXE] Contains a few 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.'arch'] Contains the OpenSSL library files. | |
1295 | [.ENGINES'sover''pz'.'arch'] | |
1296 | Contains the OpenSSL dynamically loadable engines. | |
1297 | [.SYS$STARTUP] Contains startup, login and shutdown scripts. | |
1298 | These define appropriate logical names and | |
1299 | command symbols. | |
1300 | [.SYSTEST] Contains the installation verification procedure. | |
1301 | [.HTML] Contains the HTML rendition of the manual pages. | |
1302 | ||
257e9d03 | 1303 | ### Additional Directories |
6ede7d73 DMSP |
1304 | |
1305 | Additionally, install will add the following directories under | |
1306 | OPENSSLDIR (the directory given with `--openssldir` or its default) | |
1307 | for you convenience: | |
1308 | ||
1309 | certs Initially empty, this is the default location | |
1310 | for certificate files. | |
1311 | private Initially empty, this is the default location | |
1312 | for private key files. | |
1313 | misc Various scripts. | |
1314 | ||
1315 | The installation directory should be appropriately protected to ensure | |
1316 | unprivileged users cannot make changes to OpenSSL binaries or files, or | |
1317 | install engines. If you already have a pre-installed version of OpenSSL as | |
1318 | part of your Operating System it is recommended that you do not overwrite | |
1319 | the system version and instead install to somewhere else. | |
1320 | ||
1321 | Package builders who want to configure the library for standard locations, | |
1322 | but have the package installed somewhere else so that it can easily be | |
1323 | packaged, can use | |
1324 | ||
3a0b3cc9 DDO |
1325 | $ make DESTDIR=/tmp/package-root install # Unix |
1326 | $ mms/macro="DESTDIR=TMP:[PACKAGE-ROOT]" install ! OpenVMS | |
6ede7d73 DMSP |
1327 | |
1328 | The specified destination directory will be prepended to all installation | |
1329 | target paths. | |
1330 | ||
257e9d03 RS |
1331 | Compatibility issues with previous OpenSSL versions |
1332 | --------------------------------------------------- | |
6ede7d73 | 1333 | |
257e9d03 | 1334 | ### COMPILING existing applications |
6ede7d73 DMSP |
1335 | |
1336 | Starting with version 1.1.0, OpenSSL hides a number of structures that were | |
1337 | previously open. This includes all internal libssl structures and a number | |
1338 | of EVP types. Accessor functions have been added to allow controlled access | |
1339 | to the structures' data. | |
1340 | ||
1341 | This means that some software needs to be rewritten to adapt to the new ways | |
1342 | of doing things. This often amounts to allocating an instance of a structure | |
1343 | explicitly where you could previously allocate them on the stack as automatic | |
1344 | variables, and using the provided accessor functions where you would previously | |
1345 | access a structure's field directly. | |
1346 | ||
1347 | Some APIs have changed as well. However, older APIs have been preserved when | |
1348 | possible. | |
1349 | ||
41149648 RL |
1350 | Post-installation Notes |
1351 | ----------------------- | |
1352 | ||
1353 | With the default OpenSSL installation comes a FIPS provider module, which | |
1354 | needs some post-installation attention, without which it will not be usable. | |
1355 | This involves using the following command: | |
1356 | ||
270540fd | 1357 | $ openssl fipsinstall |
41149648 RL |
1358 | |
1359 | See the openssl-fipsinstall(1) manual for details and examples. | |
1360 | ||
6ede7d73 DMSP |
1361 | Advanced Build Options |
1362 | ====================== | |
1363 | ||
6ede7d73 DMSP |
1364 | Environment Variables |
1365 | --------------------- | |
1366 | ||
1367 | A number of environment variables can be used to provide additional control | |
1368 | over the build process. Typically these should be defined prior to running | |
9afbb681 | 1369 | `Configure`. Not all environment variables are relevant to all platforms. |
6ede7d73 DMSP |
1370 | |
1371 | AR | |
1372 | The name of the ar executable to use. | |
1373 | ||
1374 | BUILDFILE | |
1375 | Use a different build file name than the platform default | |
1376 | ("Makefile" on Unix-like platforms, "makefile" on native Windows, | |
1377 | "descrip.mms" on OpenVMS). This requires that there is a | |
036cbb6b DDO |
1378 | corresponding build file template. |
1379 | See [Configurations/README.md](Configurations/README.md) | |
6ede7d73 DMSP |
1380 | for further information. |
1381 | ||
1382 | CC | |
1383 | The compiler to use. Configure will attempt to pick a default | |
1384 | compiler for your platform but this choice can be overridden | |
1385 | using this variable. Set it to the compiler executable you wish | |
9afbb681 | 1386 | to use, e.g. gcc or clang. |
6ede7d73 DMSP |
1387 | |
1388 | CROSS_COMPILE | |
1389 | This environment variable has the same meaning as for the | |
1390 | "--cross-compile-prefix" Configure flag described above. If both | |
1391 | are set then the Configure flag takes precedence. | |
1392 | ||
1393 | NM | |
1394 | The name of the nm executable to use. | |
1395 | ||
1396 | OPENSSL_LOCAL_CONFIG_DIR | |
1397 | OpenSSL comes with a database of information about how it | |
1398 | should be built on different platforms as well as build file | |
1399 | templates for those platforms. The database is comprised of | |
1400 | ".conf" files in the Configurations directory. The build | |
1401 | file templates reside there as well as ".tmpl" files. See the | |
036cbb6b DDO |
1402 | file [Configurations/README.md](Configurations/README.md) |
1403 | for further information about the format of ".conf" files | |
1404 | as well as information on the ".tmpl" files. | |
6ede7d73 | 1405 | In addition to the standard ".conf" and ".tmpl" files, it is |
036cbb6b DDO |
1406 | possible to create your own ".conf" and ".tmpl" files and |
1407 | store them locally, outside the OpenSSL source tree. | |
1408 | This environment variable can be set to the directory where | |
1409 | these files are held and will be considered by Configure | |
1410 | before it looks in the standard directories. | |
6ede7d73 DMSP |
1411 | |
1412 | PERL | |
1413 | The name of the Perl executable to use when building OpenSSL. | |
16b0e0fc RL |
1414 | Only needed if builing should use a different Perl executable |
1415 | than what is used to run the Configure script. | |
6ede7d73 DMSP |
1416 | |
1417 | HASHBANGPERL | |
1418 | The command string for the Perl executable to insert in the | |
1419 | #! line of perl scripts that will be publicly installed. | |
1420 | Default: /usr/bin/env perl | |
1421 | Note: the value of this variable is added to the same scripts | |
1422 | on all platforms, but it's only relevant on Unix-like platforms. | |
1423 | ||
1424 | RC | |
1425 | The name of the rc executable to use. The default will be as | |
1426 | defined for the target platform in the ".conf" file. If not | |
1427 | defined then "windres" will be used. The WINDRES environment | |
1428 | variable is synonymous to this. If both are defined then RC | |
1429 | takes precedence. | |
1430 | ||
1431 | RANLIB | |
1432 | The name of the ranlib executable to use. | |
1433 | ||
1434 | WINDRES | |
1435 | See RC. | |
1436 | ||
6ede7d73 DMSP |
1437 | Makefile Targets |
1438 | ---------------- | |
1439 | ||
9afbb681 | 1440 | The `Configure` script generates a Makefile in a format relevant to the specific |
6ede7d73 DMSP |
1441 | platform. The Makefiles provide a number of targets that can be used. Not all |
1442 | targets may be available on all platforms. Only the most common targets are | |
1443 | described here. Examine the Makefiles themselves for the full list. | |
1444 | ||
1445 | all | |
1446 | The target to build all the software components and | |
1447 | documentation. | |
1448 | ||
1449 | build_sw | |
1450 | Build all the software components. | |
1451 | THIS IS THE DEFAULT TARGET. | |
1452 | ||
1453 | build_docs | |
1454 | Build all documentation components. | |
1455 | ||
1456 | clean | |
1457 | Remove all build artefacts and return the directory to a "clean" | |
1458 | state. | |
1459 | ||
1460 | depend | |
1461 | Rebuild the dependencies in the Makefiles. This is a legacy | |
1462 | option that no longer needs to be used since OpenSSL 1.1.0. | |
1463 | ||
1464 | install | |
1465 | Install all OpenSSL components. | |
1466 | ||
1467 | install_sw | |
1468 | Only install the OpenSSL software components. | |
1469 | ||
1470 | install_docs | |
1471 | Only install the OpenSSL documentation components. | |
1472 | ||
1473 | install_man_docs | |
1474 | Only install the OpenSSL man pages (Unix only). | |
1475 | ||
1476 | install_html_docs | |
8c1cbc72 | 1477 | Only install the OpenSSL HTML documentation. |
cad80959 | 1478 | |
b19b9830 RL |
1479 | install_fips |
1480 | Install the FIPS provider module configuration file. | |
6ede7d73 DMSP |
1481 | |
1482 | list-tests | |
1483 | Prints a list of all the self test names. | |
1484 | ||
1485 | test | |
1486 | Build and run the OpenSSL self tests. | |
1487 | ||
1488 | uninstall | |
1489 | Uninstall all OpenSSL components. | |
1490 | ||
1491 | reconfigure | |
1492 | reconf | |
1493 | Re-run the configuration process, as exactly as the last time | |
1494 | as possible. | |
1495 | ||
1496 | update | |
1497 | This is a developer option. If you are developing a patch for | |
1498 | OpenSSL you may need to use this if you want to update | |
1499 | automatically generated files; add new error codes or add new | |
1500 | (or change the visibility of) public API functions. (Unix only). | |
1501 | ||
1502 | Running Selected Tests | |
1503 | ---------------------- | |
1504 | ||
3a0b3cc9 DDO |
1505 | You can specify a set of tests to be performed |
1506 | using the `make` variable `TESTS`. | |
6ede7d73 | 1507 | |
3a0b3cc9 DDO |
1508 | See the section [Running Selected Tests of |
1509 | test/README.md](test/README.md#running-selected-tests). | |
6ede7d73 DMSP |
1510 | |
1511 | Troubleshooting | |
1512 | =============== | |
1513 | ||
1514 | Configuration Problems | |
1515 | ---------------------- | |
1516 | ||
257e9d03 | 1517 | ### Selecting the correct target |
6ede7d73 | 1518 | |
16b0e0fc | 1519 | The `./Configure` script tries hard to guess your operating system, but in some |
6ede7d73 DMSP |
1520 | cases it does not succeed. You will see a message like the following: |
1521 | ||
16b0e0fc | 1522 | $ ./Configure |
6ede7d73 | 1523 | Operating system: x86-whatever-minix |
1dc1ea18 | 1524 | This system (minix) is not supported. See file INSTALL.md for details. |
6ede7d73 | 1525 | |
9afbb681 DDO |
1526 | Even if the automatic target selection by the `./Configure` script fails, |
1527 | chances are that you still might find a suitable target in the `Configurations` | |
1528 | directory, which you can supply to the `./Configure` command, | |
1529 | possibly after some adjustment. | |
6ede7d73 | 1530 | |
9afbb681 | 1531 | The `Configurations/` directory contains a lot of examples of such targets. |
6c8149df | 1532 | The main configuration file is [10-main.conf], which contains all targets that |
6ede7d73 DMSP |
1533 | are officially supported by the OpenSSL team. Other configuration files contain |
1534 | targets contributed by other OpenSSL users. The list of targets can be found in | |
1535 | a Perl list `my %targets = ( ... )`. | |
1536 | ||
1537 | my %targets = ( | |
1538 | ... | |
1539 | "target-name" => { | |
1540 | inherit_from => [ "base-target" ], | |
1541 | CC => "...", | |
1542 | cflags => add("..."), | |
1543 | asm_arch => '...', | |
1544 | perlasm_scheme => "...", | |
1545 | }, | |
1546 | ... | |
1547 | ) | |
1548 | ||
16b0e0fc | 1549 | If you call `./Configure` without arguments, it will give you a list of all |
6ede7d73 | 1550 | known targets. Using `grep`, you can lookup the target definition in the |
9afbb681 DDO |
1551 | `Configurations/` directory. For example the `android-x86_64` can be found in |
1552 | [Configurations/15-android.conf](Configurations/15-android.conf). | |
6ede7d73 DMSP |
1553 | |
1554 | The directory contains two README files, which explain the general syntax and | |
9afbb681 | 1555 | design of the configuration files. |
6ede7d73 | 1556 | |
036cbb6b DDO |
1557 | - [Configurations/README.md](Configurations/README.md) |
1558 | - [Configurations/README-design.md](Configurations/README-design.md) | |
6ede7d73 | 1559 | |
6c8149df DMSP |
1560 | If you need further help, try to search the [openssl-users] mailing list |
1561 | or the [GitHub Issues] for existing solutions. If you don't find anything, | |
1562 | you can [raise an issue] to ask a question yourself. | |
6ede7d73 | 1563 | |
6c8149df | 1564 | More about our support resources can be found in the [SUPPORT] file. |
6ede7d73 | 1565 | |
257e9d03 | 1566 | ### Configuration Errors |
6ede7d73 | 1567 | |
16b0e0fc | 1568 | If the `./Configure` or `./Configure` command fails with an error message, |
6ede7d73 DMSP |
1569 | read the error message carefully and try to figure out whether you made |
1570 | a mistake (e.g., by providing a wrong option), or whether the script is | |
1571 | working incorrectly. If you think you encountered a bug, please | |
6c8149df | 1572 | [raise an issue] on GitHub to file a bug report. |
6ede7d73 DMSP |
1573 | |
1574 | Along with a short description of the bug, please provide the complete | |
1575 | configure command line and the relevant output including the error message. | |
1576 | ||
1577 | Note: To make the output readable, pleace add a 'code fence' (three backquotes | |
1578 | ` ``` ` on a separate line) before and after your output: | |
1579 | ||
1580 | ``` | |
b0d5c1cb | 1581 | ./Configure [your arguments...] |
6ede7d73 DMSP |
1582 | |
1583 | [output...] | |
1584 | ||
1585 | ``` | |
1586 | ||
6ede7d73 DMSP |
1587 | Build Failures |
1588 | -------------- | |
1589 | ||
1590 | If the build fails, look carefully at the output. Try to locate and understand | |
1591 | the error message. It might be that the compiler is already telling you | |
1592 | exactly what you need to do to fix your problem. | |
1593 | ||
1594 | There may be reasons for the failure that aren't problems in OpenSSL itself, | |
1595 | for example if the compiler reports missing standard or third party headers. | |
1596 | ||
1597 | If the build succeeded previously, but fails after a source or configuration | |
1598 | change, it might be helpful to clean the build tree before attempting another | |
1599 | build. Use this command: | |
1600 | ||
270540fd RL |
1601 | $ make clean # Unix |
1602 | $ mms clean ! (or mmk) OpenVMS | |
1603 | $ nmake clean # Windows | |
6ede7d73 DMSP |
1604 | |
1605 | Assembler error messages can sometimes be sidestepped by using the | |
9afbb681 | 1606 | `no-asm` configuration option. |
6ede7d73 DMSP |
1607 | |
1608 | Compiling parts of OpenSSL with gcc and others with the system compiler will | |
1609 | result in unresolved symbols on some systems. | |
1610 | ||
6c8149df DMSP |
1611 | If you are still having problems, try to search the [openssl-users] mailing |
1612 | list or the [GitHub Issues] for existing solutions. If you think you | |
1613 | encountered an OpenSSL bug, please [raise an issue] to file a bug report. | |
6ede7d73 DMSP |
1614 | Please take the time to review the existing issues first; maybe the bug was |
1615 | already reported or has already been fixed. | |
1616 | ||
6ede7d73 DMSP |
1617 | Test Failures |
1618 | ------------- | |
1619 | ||
1620 | If some tests fail, look at the output. There may be reasons for the failure | |
b0d5c1cb | 1621 | that isn't a problem in OpenSSL itself (like an OS malfunction or a Perl issue). |
6ede7d73 | 1622 | |
3a0b3cc9 DDO |
1623 | You may want increased verbosity, that can be accomplished as described in |
1624 | section [Test Failures of test/README.md](test/README.md#test-failures). | |
6ede7d73 | 1625 | |
e4522e10 DDO |
1626 | You may also want to selectively specify which test(s) to perform. This can be |
1627 | done using the `make` variable `TESTS` as described in section [Running | |
1628 | Selected Tests of test/README.md](test/README.md#running-selected-tests). | |
6ede7d73 DMSP |
1629 | |
1630 | If you find a problem with OpenSSL itself, try removing any | |
3a0b3cc9 DDO |
1631 | compiler optimization flags from the `CFLAGS` line in the Makefile and |
1632 | run `make clean; make` or corresponding. | |
6ede7d73 DMSP |
1633 | |
1634 | To report a bug please open an issue on GitHub, at | |
257e9d03 | 1635 | <https://github.com/openssl/openssl/issues>. |
6ede7d73 | 1636 | |
6ede7d73 DMSP |
1637 | Notes |
1638 | ===== | |
1639 | ||
1640 | Notes on multi-threading | |
1641 | ------------------------ | |
1642 | ||
9afbb681 | 1643 | For some systems, the OpenSSL `Configure` script knows what compiler options |
6ede7d73 DMSP |
1644 | are needed to generate a library that is suitable for multi-threaded |
1645 | applications. On these systems, support for multi-threading is enabled | |
9afbb681 | 1646 | by default; use the `no-threads` option to disable (this should never be |
6ede7d73 DMSP |
1647 | necessary). |
1648 | ||
1649 | On other systems, to enable support for multi-threading, you will have | |
9afbb681 DDO |
1650 | to specify at least two options: `threads`, and a system-dependent option. |
1651 | (The latter is `-D_REENTRANT` on various systems.) The default in this | |
6ede7d73 | 1652 | case, obviously, is not to include support for multi-threading (but |
9afbb681 DDO |
1653 | you can still use `no-threads` to suppress an annoying warning message |
1654 | from the `Configure` script.) | |
6ede7d73 DMSP |
1655 | |
1656 | OpenSSL provides built-in support for two threading models: pthreads (found on | |
1657 | most UNIX/Linux systems), and Windows threads. No other threading models are | |
1658 | supported. If your platform does not provide pthreads or Windows threads then | |
9afbb681 | 1659 | you should use `Configure` with the `no-threads` option. |
6ede7d73 DMSP |
1660 | |
1661 | Notes on shared libraries | |
1662 | ------------------------- | |
1663 | ||
9afbb681 | 1664 | For most systems the OpenSSL `Configure` script knows what is needed to |
6ede7d73 DMSP |
1665 | build shared libraries for libcrypto and libssl. On these systems |
1666 | the shared libraries will be created by default. This can be suppressed and | |
9afbb681 DDO |
1667 | only static libraries created by using the `no-shared` option. On systems |
1668 | where OpenSSL does not know how to build shared libraries the `no-shared` | |
6ede7d73 DMSP |
1669 | option will be forced and only static libraries will be created. |
1670 | ||
1671 | Shared libraries are named a little differently on different platforms. | |
1672 | One way or another, they all have the major OpenSSL version number as | |
9afbb681 | 1673 | part of the file name, i.e. for OpenSSL 1.1.x, `1.1` is somehow part of |
6ede7d73 DMSP |
1674 | the name. |
1675 | ||
9afbb681 DDO |
1676 | On most POSIX platforms, shared libraries are named `libcrypto.so.1.1` |
1677 | and `libssl.so.1.1`. | |
6ede7d73 | 1678 | |
9afbb681 DDO |
1679 | on Cygwin, shared libraries are named `cygcrypto-1.1.dll` and `cygssl-1.1.dll` |
1680 | with import libraries `libcrypto.dll.a` and `libssl.dll.a`. | |
6ede7d73 DMSP |
1681 | |
1682 | On Windows build with MSVC or using MingW, shared libraries are named | |
9afbb681 DDO |
1683 | `libcrypto-1_1.dll` and `libssl-1_1.dll` for 32-bit Windows, |
1684 | `libcrypto-1_1-x64.dll` and `libssl-1_1-x64.dll` for 64-bit x86_64 Windows, | |
1685 | and `libcrypto-1_1-ia64.dll` and `libssl-1_1-ia64.dll` for IA64 Windows. | |
1686 | With MSVC, the import libraries are named `libcrypto.lib` and `libssl.lib`, | |
1687 | while with MingW, they are named `libcrypto.dll.a` and `libssl.dll.a`. | |
6ede7d73 DMSP |
1688 | |
1689 | On VMS, shareable images (VMS speak for shared libraries) are named | |
9afbb681 | 1690 | `ossl$libcrypto0101_shr.exe` and `ossl$libssl0101_shr.exe`. However, when |
6ede7d73 | 1691 | OpenSSL is specifically built for 32-bit pointers, the shareable images |
9afbb681 | 1692 | are named `ossl$libcrypto0101_shr32.exe` and `ossl$libssl0101_shr32.exe` |
6ede7d73 | 1693 | instead, and when built for 64-bit pointers, they are named |
9afbb681 | 1694 | `ossl$libcrypto0101_shr64.exe` and `ossl$libssl0101_shr64.exe`. |
6ede7d73 DMSP |
1695 | |
1696 | Notes on random number generation | |
1697 | --------------------------------- | |
1698 | ||
1699 | Availability of cryptographically secure random numbers is required for | |
1700 | secret key generation. OpenSSL provides several options to seed the | |
1701 | internal CSPRNG. If not properly seeded, the internal CSPRNG will refuse | |
1702 | to deliver random bytes and a "PRNG not seeded error" will occur. | |
1703 | ||
1704 | The seeding method can be configured using the `--with-rand-seed` option, | |
1705 | which can be used to specify a comma separated list of seed methods. | |
8c1cbc72 | 1706 | However, in most cases OpenSSL will choose a suitable default method, |
6ede7d73 | 1707 | so it is not necessary to explicitly provide this option. Note also |
b99c463d P |
1708 | that not all methods are available on all platforms. The FIPS provider will |
1709 | silently ignore seed sources that were not validated. | |
6ede7d73 DMSP |
1710 | |
1711 | I) On operating systems which provide a suitable randomness source (in | |
1712 | form of a system call or system device), OpenSSL will use the optimal | |
1713 | available method to seed the CSPRNG from the operating system's | |
1714 | randomness sources. This corresponds to the option `--with-rand-seed=os`. | |
1715 | ||
1716 | II) On systems without such a suitable randomness source, automatic seeding | |
9afbb681 | 1717 | and reseeding is disabled (`--with-rand-seed=none`) and it may be necessary |
6ede7d73 | 1718 | to install additional support software to obtain a random seed and reseed |
9afbb681 DDO |
1719 | the CSPRNG manually. Please check out the manual pages for `RAND_add()`, |
1720 | `RAND_bytes()`, `RAND_egd()`, and the FAQ for more information. | |
6ede7d73 | 1721 | |
6ede7d73 DMSP |
1722 | <!-- Links --> |
1723 | ||
1724 | [openssl-users]: | |
257e9d03 | 1725 | <https://mta.openssl.org/mailman/listinfo/openssl-users> |
6ede7d73 DMSP |
1726 | |
1727 | [SUPPORT]: | |
1728 | ./SUPPORT.md | |
1729 | ||
1730 | [GitHub Issues]: | |
257e9d03 | 1731 | <https://github.com/openssl/openssl/issues> |
6ede7d73 DMSP |
1732 | |
1733 | [raise an issue]: | |
257e9d03 | 1734 | <https://github.com/openssl/openssl/issues/new/choose> |
6ede7d73 DMSP |
1735 | |
1736 | [10-main.conf]: | |
1737 | Configurations/10-main.conf |