[nginx] QUIC: fixed OpenSSL compat layer with OpenSSL master branch.

[Sergey Kandaurov]

details:   https://hg.nginx.org/nginx/rev/bddd3f76e3e5
branches:  
changeset: 9113:bddd3f76e3e5
user:      Sergey Kandaurov <pluknet at nginx.com>
date:      Tue May 23 00:45:18 2023 +0400
description:
QUIC: fixed OpenSSL compat layer with OpenSSL master branch.

The layer is enabled as a fallback if the QUIC support is configured and the
BoringSSL API wasn't detected, or when using the --with-openssl option, also
compatible with QuicTLS and LibreSSL.  For the latter, the layer is assumed
to be present if QUIC was requested, so it needs to be undefined to prevent
QUIC API redefinition as appropriate.

A previously used approach to test the TLSEXT_TYPE_quic_transport_parameters
macro doesn't work with OpenSSL 3.2 master branch where this macro appeared
with incompatible QUIC API.  To fix the build there, the test is revised to
pass only for QuicTLS and LibreSSL.

diffstat:

 src/event/quic/ngx_event_quic_openssl_compat.h |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diffs (13 lines):

diff -r d59277dd3d8c -r bddd3f76e3e5 src/event/quic/ngx_event_quic_openssl_compat.h
--- a/src/event/quic/ngx_event_quic_openssl_compat.h	Mon May 22 15:59:42 2023 +0400
+++ b/src/event/quic/ngx_event_quic_openssl_compat.h	Tue May 23 00:45:18 2023 +0400
@@ -7,7 +7,8 @@
 #ifndef _NGX_EVENT_QUIC_OPENSSL_COMPAT_H_INCLUDED_
 #define _NGX_EVENT_QUIC_OPENSSL_COMPAT_H_INCLUDED_
 
-#ifdef TLSEXT_TYPE_quic_transport_parameters
+#if defined SSL_R_MISSING_QUIC_TRANSPORT_PARAMETERS_EXTENSION                 \
+    || defined LIBRESSL_VERSION_NUMBER
 #undef NGX_QUIC_OPENSSL_COMPAT
 #else