The wolfSSL verify callback set VerifyContext::session to the raw WOLFSSL
pointer, while every other tls:: function takes the WolfSSLSession that
wraps it, so passing ctx.session on from a verifier read the wrong type.
Point each WOLFSSL back to its WolfSSLSession and hand that out instead,
as the OpenSSL and Mbed TLS backends already do with their own handles.
yhirose
c11d95b26b
