There is no explicit support in IO::Socket::SSL to do this, that is it can only deal with fixed certificates for SNI and has no way to create a certificate on demand for SNI. The way SNI on the server side works is by supplying an tls_ext_servername_callback and set the relevant context there.

I suggest you have a look at the code for IO::Socket::SSL and look how it uses Net::SSLeay::CTX_set_tlsext_servername_callback. Your code must work in a similar way, but instead of using an already created SSL context you have to create a new context with your own certifcates in this callback.

In reply to Re: Dynamic SNI certificates while upgrading to SSL by noxxi
in thread Dynamic SNI certificates while upgrading to SSL by gr3m1in

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