Preserve NO_TLSv1.[123] option compatibility

On RHEL 8, stunnel used to support the NO_TLSv1.1, NO_TLSv1.2, and
NO_TLSv1.3 values for the options directive. Since we do not break
compatibility, preserve these options for customers that have them set.

Resolves: RHEL-2340
Signed-off-by: Clemens Lang <cllang@redhat.com>

stunnel-5.71-Preserve-NO_TLSv1.-123-option-compatibility.patch

@@ -0,0 +1,37 @@
+From 4ffcbcecaf901b13a36dba1e651cfc16e5242e5a Mon Sep 17 00:00:00 2001
+From: Clemens Lang <cllang@redhat.com>
+Date: Thu, 19 Oct 2023 14:41:54 +0200
+Subject: [PATCH] Preserve NO_TLSv1.[123] option compatibility
+
+On RHEL 8, stunnel used to support the NO_TLSv1.1, NO_TLSv1.2, and
+NO_TLSv1.3 values for the options directive. Since we do not break
+compatibility, preserve these options for customers that have them set.
+
+Related: RHEL-2340
+---
+ src/options.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/options.c b/src/options.c
+index a306c4c..c05692c 100644
+--- a/src/options.c
++++ b/src/options.c
+@@ -229,12 +229,15 @@ static const SSL_OPTION ssl_opts[] = {
+ #endif
+ #ifdef SSL_OP_NO_TLSv1_1
+     {"NO_TLSv1_1", SSL_OP_NO_TLSv1_1},
++    {"NO_TLSv1.1", SSL_OP_NO_TLSv1_1},
+ #endif
+ #ifdef SSL_OP_NO_TLSv1_2
+     {"NO_TLSv1_2", SSL_OP_NO_TLSv1_2},
++    {"NO_TLSv1.2", SSL_OP_NO_TLSv1_2},
+ #endif
+ #ifdef SSL_OP_NO_TLSv1_3
+     {"NO_TLSv1_3", SSL_OP_NO_TLSv1_3},
++    {"NO_TLSv1.3", SSL_OP_NO_TLSv1_3},
+ #endif
+ #ifdef SSL_OP_PKCS1_CHECK_1
+     {"PKCS1_CHECK_1", SSL_OP_PKCS1_CHECK_1},
+-- 
+2.41.0
+

stunnel.spec

@@ -10,7 +10,7 @@
 Summary: A TLS-encrypting socket wrapper
 Name: stunnel
 Version: 5.71
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: GPLv2
 Group: Applications/Internet
 URL: https://www.stunnel.org/
@@ -31,6 +31,7 @@ Patch1: stunnel-5.61-systemd-service.patch
 Patch3: stunnel-5.69-system-ciphers.patch
 Patch5: stunnel-5.69-default-tls-version.patch
 Patch6: stunnel-5.56-curves-doc-update.patch
+Patch7: stunnel-5.71-Preserve-NO_TLSv1.-123-option-compatibility.patch
 # util-linux is needed for rename
 BuildRequires: make
 BuildRequires: gcc
@@ -62,6 +63,7 @@ conjunction with imapd to create a TLS secure IMAP server.
 %patch3 -p1 -b .system-ciphers
 %patch5 -p1 -b .default-tls-version
 %patch6 -p1 -b .curves-doc-update
+%patch7 -p1 -b .preserve-no-tlsv1-123-option-compatibility
 
 # Fix the stack protector flag
 sed -i 's/-fstack-protector/-fstack-protector-strong/' configure
@@ -140,6 +142,10 @@ fi
 %systemd_postun_with_restart %{name}.service
 
 %changelog
+* Thu Oct 19 2023 Clemens Lang <cllang@redhat.com> - 5.71-2
+- Restore support for the NO_TLSv1.[123] values for the option directive
+  Resolves: RHEL-2340
+
 * Thu Oct 05 2023 Clemens Lang <cllang@redhat.com> - 5.71-1
 - New upstream release 5.71
   Resolves: RHEL-2340