psk_find_session_cb
SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb);
sc->psk_find_session_cb = cb;
ctx->psk_find_session_cb = cb;
s->psk_find_session_cb = ctx->psk_find_session_cb;
SSL_psk_find_session_cb_func psk_find_session_cb;
SSL_psk_find_session_cb_func psk_find_session_cb;
if (s->psk_find_session_cb != NULL
&& !s->psk_find_session_cb(ussl, PACKET_data(&identity), idlen,
if (s->psk_find_session_cb != NULL || s->cert->cert_cb != NULL)