nodejs/doc/guides/maintaining-openssl.md

Maintaining OpenSSL

This document describes how to update deps/openssl/.

Requirements

• Linux environment.
• perl Only Perl version 5 is tested.
• nasm (http://www.nasm.us/) Version 2.11 or higher is needed.
• GNU as in binutils. Version 2.26 or higher is needed.

0. Check Requirements

% perl -v

This is perl 5, version 22, subversion 1 (v5.22.1) built for
x86_64-linux-gnu-thread-multi
(with 60 registered patches, see perl -V for more detail)

% as --version
GNU assembler (GNU Binutils for Ubuntu) 2.26.1
Copyright (C) 2015 Free Software Foundation, Inc.
...
% nasm -v
NASM version 2.11.08

1. Obtain and extract new OpenSSL sources

Get a new source from https://www.openssl.org/source/ and extract all files into deps/openssl/openssl. Then add all files and commit them.

% cd deps/openssl/
% rm -rf openssl
% tar zxf ~/tmp/openssl-1.1.0h.tar.gz
% mv openssl-1.1.0h openssl
% git add --all openssl
% git commit openssl

The commit message can be written as (with the openssl version set to the relevant value):

deps: upgrade openssl sources to 1.1.0h

This updates all sources in deps/openssl/openssl by:
    $ cd deps/openssl/
    $ rm -rf openssl
    $ tar zxf ~/tmp/openssl-1.1.0h.tar.gz
    $ mv openssl-1.1.0h openssl
    $ git add --all openssl
    $ git commit openssl

2. Execute make in deps/openssl/config directory

Use make to regenerate all platform dependent files in deps/openssl/config/archs/:

% make -C deps/openssl/config

3. Check diffs

Check diffs to ensure updates are right. Even if there are no updates in openssl sources, buildinf.h files will be updated because they have timestamp data in them.

% git diff -- deps/openssl

Note: On Windows, OpenSSL Configure generates a makefile that can be used for the nmake command. The make command in step 2 (above) uses Makefile_VC-WIN64A and Makefile_VC-WIN32 that are manually created. When source files or build options are updated in Windows, it needs to change these two Makefiles by hand. If you are not sure, please ask @shigeki for details.

4. Commit and make test

Update all architecture dependent files. Do not forget to git add or remove files if they are changed before committing:

% git add deps/openssl/config/archs
% git add deps/openssl/openssl/include/crypto/bn_conf.h
% git add deps/openssl/openssl/include/crypto/dso_conf.h
% git add deps/openssl/openssl/include/openssl/opensslconf.h
% git commit

The commit message can be written as (with the openssl version set to the relevant value):

 deps: update archs files for OpenSSL-1.1.0

 After an OpenSSL source update, all the config files need to be
 regenerated and committed by:
    $ make -C deps/openssl/config
    $ git add deps/openssl/config/archs
    $ git add deps/openssl/openssl/include/crypto/bn_conf.h
    $ git add deps/openssl/openssl/include/crypto/dso_conf.h
    $ git add deps/openssl/openssl/include/openssl/opensslconf.h
    $ git commit

Finally, build Node.js and run the tests.