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dev-lang/python: compatibility patch for libressl

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This patch fixes building with >=dev-libs/libressl-2.7. Additionally,
the slot and subslot modifier have been updated to ensure rebuilds are
properly triggered. Patch is from upstream commit
4ca0739c9d97ac7cd45499e0d31be68dc659d0e1.

Package-Manager: Portage-2.3.28, Repoman-2.3.9
Closes: https://github.com/gentoo/gentoo/pull/7971
This commit is contained in:
Aaron Bauman
2018-04-13 13:34:44 -04:00
parent ee4cb90f27
commit f2a1e08538
2 changed files with 94 additions and 1 deletions
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92
dev-lang/python/files/python-2.7-libressl-compatibility.patch Normal file
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@@ -0,0 +1,92 @@
# From https://github.com/python/cpython/pull/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 4ca0739)
#Co-authored-by: Christian Heimes christian@python.org
--- a/Modules/_ssl.c 2017-09-16 17:38:35.000000000 +0000
+++ b/Modules/_ssl.c 2018-04-13 15:55:10.919424126 +0000
@@ -97,6 +102,12 @@
#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
@@ -118,24 +129,44 @@
#endif
/* ALPN added in OpenSSL 1.0.2 */
-#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined(OPENSSL_NO_TLSEXT)
-# define HAVE_ALPN
+#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
+# define HAVE_ALPN 1
+#else
+# define HAVE_ALPN 0
+#endif
+
+/* We cannot rely on OPENSSL_NO_NEXTPROTONEG because LibreSSL 2.6.1 dropped
+ * NPN support but did not set OPENSSL_NO_NEXTPROTONEG for compatibility
+ * reasons. The check for TLSEXT_TYPE_next_proto_neg works with
+ * OpenSSL 1.0.1+ and LibreSSL.
+ * OpenSSL 1.1.1-pre1 dropped NPN but still has TLSEXT_TYPE_next_proto_neg.
+ */
+#ifdef OPENSSL_NO_NEXTPROTONEG
+# define HAVE_NPN 0
+#elif (OPENSSL_VERSION_NUMBER >= 0x10101000L) && !defined(LIBRESSL_VERSION_NUMBER)
+# define HAVE_NPN 0
+#elif defined(TLSEXT_TYPE_next_proto_neg)
+# define HAVE_NPN 1
+#else
+# define HAVE_NPN 0
#endif
#ifndef INVALID_SOCKET /* MS defines this */
#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)
@@ -178,7 +209,7 @@
{
return store->param;
}
-#endif /* OpenSSL < 1.1.0 or LibreSSL */
+#endif /* OpenSSL < 1.1.0 or LibreSSL < 2.7.0 */
enum py_ssl_error {