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From edd541897b9c28ee0d0f0131746aa5f19665a104 Mon Sep 17 00:00:00 2001
From: Christian Heimes <christian@python.org>
Date: Sat, 24 Mar 2018 19:34:15 +0100
Subject: [PATCH] [2.7] bpo-33127: Compatibility patch for LibreSSL 2.7.0
(GH-6210) (GH-6215)
LibreSSL 2.7 introduced OpenSSL 1.1.0 API. The ssl module now detects
LibreSSL 2.7 and only provides API shims for OpenSSL < 1.1.0 and
LibreSSL < 2.7.
Documentation updates and fixes for failing tests will be provided in
another patch set.
Signed-off-by: Christian Heimes <christian@python.org>.
(cherry picked from commit 4ca0739c9d97ac7cd45499e0d31be68dc659d0e1)
Co-authored-by: Christian Heimes <christian@python.org>
---
.../2018-03-24-15-08-24.bpo-33127.olJmHv.rst | 1 +
Modules/_ssl.c | 24 ++++++++++++++--------
Tools/ssl/multissltests.py | 3 ++-
3 files changed, 19 insertions(+), 9 deletions(-)
create mode 100644 Misc/NEWS.d/next/Library/2018-03-24-15-08-24.bpo-33127.olJmHv.rst
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index da8b20f54f..d0ce913d3d 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -102,6 +102,12 @@ struct py_ssl_library_code {
#if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
# define OPENSSL_VERSION_1_1 1
+# define PY_OPENSSL_1_1_API 1
+#endif
+
+/* LibreSSL 2.7.0 provides necessary OpenSSL 1.1.0 APIs */
+#if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER >= 0x2070000fL
+# define PY_OPENSSL_1_1_API 1
#endif
/* Openssl comes with TLSv1.1 and TLSv1.2 between 1.0.0h and 1.0.1
@@ -149,16 +155,18 @@ struct py_ssl_library_code {
#define INVALID_SOCKET (-1)
#endif
-#ifdef OPENSSL_VERSION_1_1
-/* OpenSSL 1.1.0+ */
-#ifndef OPENSSL_NO_SSL2
-#define OPENSSL_NO_SSL2
-#endif
-#else /* OpenSSL < 1.1.0 */
-#if defined(WITH_THREAD)
+/* OpenSSL 1.0.2 and LibreSSL needs extra code for locking */
+#if !defined(OPENSSL_VERSION_1_1) && defined(WITH_THREAD)
#define HAVE_OPENSSL_CRYPTO_LOCK
#endif
+#if defined(OPENSSL_VERSION_1_1) && !defined(OPENSSL_NO_SSL2)
+#define OPENSSL_NO_SSL2
+#endif
+
+#ifndef PY_OPENSSL_1_1_API
+/* OpenSSL 1.1 API shims for OpenSSL < 1.1.0 and LibreSSL < 2.7.0 */
+
#define TLS_method SSLv23_method
static int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)
@@ -201,7 +209,7 @@ static X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *store)
{
return store->param;
}
-#endif /* OpenSSL < 1.1.0 or LibreSSL */
+#endif /* OpenSSL < 1.1.0 or LibreSSL < 2.7.0 */
enum py_ssl_error {
--
2.16.1
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