Drop old OpenSSL version support #325
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The new baseline is OpenSSL 1.1.1 or LibreSSL 2.8.0. I chose the former
because it's the version available in Rocky Linux 8 (and presumably RHEL 8),
which is still under support. The latter is just because it's been released
around the same time.
By doing this, we can drop every preprocessor conditional that depends on
`OPENSSL_VERSION_NUMBER` and almost every one that depends on
`LIBRESSL_VERSION_NUMBER`.
In addition, we can now make the following simplifications:
* Drop support for SSLv2, since neither library supports it anymore.
For backwards compatibility, the protocol name is still allowed in the
config, but does nothing.
* Remove the setting of the `SSL_OP_SINGLE_{EC,}DH_USE` options, since
they're now permanently enabled in both libraries.
* Remove the `OPENSSL_init_ssl` call, which is now unnecessary.
* Remove the manual seeding code, since both libraries now handle seeding
automatically. In LibreSSL, `RAND_load_file` doesn't even do anything.
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Contributor
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Thanks for the cleaning. I'll have a deeper look at it next week, and integrate it into INN. Note that Solaris 10 and 11.3 still have OpenSSL 1.0.2 but will soon be unsupported Solaris versions (January 2027). |
Contributor
|
Many thanks again for your very careful patch. I see you removed the useless #ifdef checks on constants that are always defined in OpenSSL 1.1.1 and LibreSSL 2.8.0. Patch proof-read. Build tested OK with OpenSSL 1.1.1 and 3.5.0 as well as LibreSSL 2.8.0 and 4.1.0. |
Julien-Elie
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The new baseline is OpenSSL 1.1.1 or LibreSSL 2.8.0. I chose the former because it's the version available in Rocky Linux 8 (and presumably RHEL 8), which is still under support. The latter is just because it's been released around the same time.
By doing this, we can drop every preprocessor conditional that depends on
OPENSSL_VERSION_NUMBERand almost every one that depends onLIBRESSL_VERSION_NUMBER.In addition, we can now make the following simplifications:
Drop support for SSLv2, since neither library supports it anymore. For backwards compatibility, the protocol name is still allowed in the config, but does nothing.
Remove the setting of the
SSL_OP_SINGLE_{EC,}DH_USEoptions, since they're now permanently enabled in both libraries.Remove the
OPENSSL_init_sslcall, which is now unnecessary.Remove the manual seeding code, since both libraries now handle seeding automatically. In LibreSSL,
RAND_load_filedoesn't even do anything.This partly implements #321.