> On 22 Mar 2020, at 21:39, itpp2012 <nginx-forum@forum.nginx.org> wrote:
>
> How about this as this catches all 3 while conditions:
>
> +++ src/event/ngx_event_openssl.c
> @@ -2318,
>
> c->ssl->no_wait_shutdown = 1;
> c->ssl->no_send_shutdown = 1;
>
> if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
> ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
> "peer shutdown SSL cleanly");
> return NGX_DONE;
> }
>
> + /* https://forum.nginx.org/read.php?2,287377 */
> + /* https://github.com/openssl/openssl/issues/11381 */
> +#ifdef SSL_R_UNEXPECTED_EOF_WHILE_READING
> + if (sslerr == SSL_ERROR_SSL && ERR_GET_REASON(ERR_peek_error())
> + == SSL_R_UNEXPECTED_EOF_WHILE_READING) {
> + ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
> + "ssl3_read_n:unexpected eof while reading");
> + return NGX_DONE;
> + }
> +#endif
> +
> ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");

How would this catch the reported error in SSL_do_handshake() ?
I'd replicate this check in ngx_ssl_handshake().
And probably for SSL_read_early_data, SSL_shutdown, SSL_peak,
(ok, we don't use SSL_peak), but this is a moot point.

--
Sergey Kandaurov

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