[PATCH] QUIC: fixed compat with ciphers other than AES128 (ticket #2500)

[Roman Arutyunyan]

# HG changeset patch
# User Roman Arutyunyan <arut at nginx.com>
# Date 1685258227 -14400
#      Sun May 28 11:17:07 2023 +0400
# Node ID 5b46de0dda837d97afbec7484931223c52d53905
# Parent  8eae1b4f1c5528b063351804168a6085f5f50b42
QUIC: fixed compat with ciphers other than AES128 (ticket #2500).

Previously, rec.level field was not uninitialized in SSL_provide_quic_data().
As a result, its value was always ssl_encryption_initial.  Later in
ngx_quic_ciphers() such level resulted in resetting the cipher to
TLS1_3_CK_AES_128_GCM_SHA256 and using AES128 to encrypt the packet.

Now the level is initialized and the right cipher is used.

diff --git a/src/event/quic/ngx_event_quic_openssl_compat.c b/src/event/quic/ngx_event_quic_openssl_compat.c
--- a/src/event/quic/ngx_event_quic_openssl_compat.c
+++ b/src/event/quic/ngx_event_quic_openssl_compat.c
@@ -463,6 +463,7 @@ SSL_provide_quic_data(SSL *ssl, enum ssl
         rec.log = c->log;
         rec.number = com->read_record++;
         rec.keys = &com->keys;
+        rec.level = level;
 
         if (level == ssl_encryption_initial) {
             n = ngx_min(len, 65535);