From c087a268a4d4ead8ef2ca21e325423818729da89 Mon Sep 17 00:00:00 2001 From: Christian Heimes Date: Fri, 15 May 2020 20:55:25 +0200 Subject: bpo-40515: Require OPENSSL_THREADS (GH-19953) The ``ssl`` and ``hashlib`` modules now actively check that OpenSSL is build with thread support. Python 3.7.0 made thread support mandatory and no longer works safely with a no-thread builds. Signed-off-by: Christian Heimes --- Misc/NEWS.d/next/Library/2020-05-06-13-51-19.bpo-40515.TUCvYB.rst | 3 +++ Modules/_hashopenssl.c | 4 ++++ Modules/_ssl.c | 6 +++++- 3 files changed, 12 insertions(+), 1 deletion(-) create mode 100644 Misc/NEWS.d/next/Library/2020-05-06-13-51-19.bpo-40515.TUCvYB.rst diff --git a/Misc/NEWS.d/next/Library/2020-05-06-13-51-19.bpo-40515.TUCvYB.rst b/Misc/NEWS.d/next/Library/2020-05-06-13-51-19.bpo-40515.TUCvYB.rst new file mode 100644 index 0000000..af77a57 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2020-05-06-13-51-19.bpo-40515.TUCvYB.rst @@ -0,0 +1,3 @@ +The :mod:`ssl` and :mod:`hashlib` modules now actively check that OpenSSL is +build with thread support. Python 3.7.0 made thread support mandatory and no +longer works safely with a no-thread builds. diff --git a/Modules/_hashopenssl.c b/Modules/_hashopenssl.c index b7661b4..b55ac93 100644 --- a/Modules/_hashopenssl.c +++ b/Modules/_hashopenssl.c @@ -27,6 +27,10 @@ #include // FIPS_mode() +#ifndef OPENSSL_THREADS +# error "OPENSSL_THREADS is not defined, Python requires thread-safe OpenSSL" +#endif + #if (OPENSSL_VERSION_NUMBER < 0x10100000L) || defined(LIBRESSL_VERSION_NUMBER) /* OpenSSL < 1.1.0 */ #define EVP_MD_CTX_new EVP_MD_CTX_create diff --git a/Modules/_ssl.c b/Modules/_ssl.c index d633a06..987a991 100644 --- a/Modules/_ssl.c +++ b/Modules/_ssl.c @@ -73,6 +73,10 @@ static PySocketModule_APIObject PySocketModule; # endif #endif +#ifndef OPENSSL_THREADS +# error "OPENSSL_THREADS is not defined, Python requires thread-safe OpenSSL" +#endif + /* SSL error object */ static PyObject *PySSLErrorObject; static PyObject *PySSLCertVerificationErrorObject; @@ -6005,7 +6009,7 @@ PyInit__ssl(void) if (!_setup_ssl_threads()) { return NULL; } -#elif OPENSSL_VERSION_1_1 && defined(OPENSSL_THREADS) +#elif OPENSSL_VERSION_1_1 /* OpenSSL 1.1.0 builtin thread support is enabled */ _ssl_locks_count++; #endif -- cgit v0.12