[nginx] SSL: logging level of "bad record type" errors.

[Sergey Kandaurov]

details:   https://hg.nginx.org/nginx/rev/9cf231508a8d
branches:  
changeset: 8063:9cf231508a8d
user:      Murilo Andrade <murilo.b.andrade at gmail.com>
date:      Tue Aug 09 17:13:46 2022 -0300
description:
SSL: logging level of "bad record type" errors.

The SSL_R_BAD_RECORD_TYPE ("bad record type") errors are reported by
OpenSSL 1.1.1 or newer when using TLSv1.3 if the client sends a record
with unknown or unexpected type.  These errors are now logged at the
"info" level.

diffstat:

 src/event/ngx_event_openssl.c |  3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diffs (13 lines):

diff -r 6e818b00ee32 -r 9cf231508a8d src/event/ngx_event_openssl.c
--- a/src/event/ngx_event_openssl.c	Tue Aug 30 01:52:51 2022 +0300
+++ b/src/event/ngx_event_openssl.c	Tue Aug 09 17:13:46 2022 -0300
@@ -3423,6 +3423,9 @@ ngx_ssl_connection_error(ngx_connection_
 #ifdef SSL_R_VERSION_TOO_LOW
             || n == SSL_R_VERSION_TOO_LOW                            /*  396 */
 #endif
+#ifdef SSL_R_BAD_RECORD_TYPE
+            || n == SSL_R_BAD_RECORD_TYPE                            /*  443 */
+#endif
             || n == 1000 /* SSL_R_SSLV3_ALERT_CLOSE_NOTIFY */
 #ifdef SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE
             || n == SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE             /* 1010 */