tls: Set session only once before Client Hello

If the server rejects the session reusage then
the client should not re-set the session multiple
times in function tls_connect() => During the
TLS handshaking / After the new session ticket

Otherwise the first connection attempt in the
rejection-case will fail. Only the second attempt
succeeds.

src/tls/openssl/tls_tcp.c

@@ -140,9 +140,6 @@ static int tls_connect(struct tls_conn *tc)
 
 	ERR_clear_error();
 
-	if (tls_get_session_reuse(tc))
-		(void) tls_reuse_session(tc);
-
 	r = SSL_connect(tc->ssl);
 	if (r <= 0) {
 		const int ssl_err = SSL_get_error(tc->ssl, r);
@@ -207,6 +204,9 @@ static bool estab_handler(int *err, bool active, void *arg)
 		return true;
 
 	tc->active = true;
+	if (tls_get_session_reuse(tc))
+		(void) tls_reuse_session(tc);
+
 	*err = tls_connect(tc);
 
 	return true;