Make OpenSSL engine configurable

[Sercan Karaoglu]

Here SSL is initialized with static null value https://github.com/netty/netty-tcnative/blob/main/openssl-classes/src/main/java/io/netty/internal/tcnative/Library.java#L176
Instead make this configurable via for example jvm parameters so that users can customize OpenSSL engines

[Norman Maurer]

There is another constructor you can use: https://github.com/netty/netty-tcnative/blob/main/openssl-classes/src/main/java/io/netty/internal/tcnative/Library.java#L187

[Sercan Karaoglu]

from end user point of view this is how I am initializing right now:

getChannelInitializer(workerGroup, handler,
                                SslContextBuilder.forClient()
                                        .sslProvider(SslProvider.OPENSSL_REFCNT)
                                        .trustManager(InsecureTrustManagerFactory.INSTANCE)
                                        .build()

How can I set it to use spesific engine then?

[Norman Maurer]

You can use -Dio.netty.handler.ssl.openssl.engine=enginename.

[Sercan Karaoglu]

awesome! that's what I was looking for. Thank you