tools/libressl: update to version 2.7.2

Libressl version 2.7.0 and later implement more of the OpenSSL 1.1 API
and this needs some modifications of the code using it.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 68 insertions, 0 deletions

diff --git a/tools/cmake/patches/140-curl-fix-libressl.patch b/tools/cmake/patches/140-curl-fix-libressl.patch
new file mode 100644
index 0000000000..9caed96f53
--- /dev/null
+++ b/tools/cmake/patches/140-curl-fix-libressl.patch
@@ -0,0 +1,68 @@
+From 7c90c93c0b061da81f69fabdd57125b2783c15fb Mon Sep 17 00:00:00 2001
+From: Bernard Spil <brnrd@FreeBSD.org>
+Date: Mon, 2 Apr 2018 19:04:06 +0200
+Subject: [PATCH] openssl: fix build with LibreSSL 2.7
+
+ - LibreSSL 2.7 implements (most of) OpenSSL 1.1 API
+
+Fixes #2319
+Closes #2447
+Closes #2448
+
+Signed-off-by: Bernard Spil <brnrd@FreeBSD.org>
+---
+ lib/vtls/openssl.c | 15 +++++++++------
+ 1 file changed, 9 insertions(+), 6 deletions(-)
+
+--- a/Utilities/cmcurl/lib/vtls/openssl.c
++++ b/Utilities/cmcurl/lib/vtls/openssl.c
+@@ -104,7 +104,8 @@
+ #endif
+ 
+ #if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && /* OpenSSL 1.1.0+ */ \
+-  !defined(LIBRESSL_VERSION_NUMBER)
++    !(defined(LIBRESSL_VERSION_NUMBER) && \
++      LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ #define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER
+ #define HAVE_X509_GET0_EXTENSIONS 1 /* added in 1.1.0 -pre1 */
+ #define HAVE_OPAQUE_EVP_PKEY 1 /* since 1.1.0 -pre3 */
+@@ -128,7 +129,8 @@ static unsigned long OpenSSL_version_num
+ #endif
+ 
+ #if (OPENSSL_VERSION_NUMBER >= 0x1000200fL) && /* 1.0.2 or later */ \
+-  !defined(LIBRESSL_VERSION_NUMBER)
++    !(defined(LIBRESSL_VERSION_NUMBER) && \
++      LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ #define HAVE_X509_GET0_SIGNATURE 1
+ #endif
+ 
+@@ -147,7 +149,7 @@ static unsigned long OpenSSL_version_num
+  * Whether SSL_CTX_set_keylog_callback is available.
+  * OpenSSL: supported since 1.1.1 https://github.com/openssl/openssl/pull/2287
+  * BoringSSL: supported since d28f59c27bac (committed 2015-11-19)
+- * LibreSSL: unsupported in at least 2.5.1 (explicitly check for it since it
++ * LibreSSL: unsupported in at least 2.7.2 (explicitly check for it since it
+  *           lies and pretends to be OpenSSL 2.0.0).
+  */
+ #if (OPENSSL_VERSION_NUMBER >= 0x10101000L && \
+@@ -259,7 +261,9 @@ static void tap_ssl_key(const SSL *ssl,
+   if(!session || !keylog_file_fp)
+     return;
+ 
+-#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER >= 0x10100000L && \
++    !(defined(LIBRESSL_VERSION_NUMBER) && \
++      LIBRESSL_VERSION_NUMBER < 0x20700000L)
+   /* ssl->s3 is not checked in openssl 1.1.0-pre6, but let's assume that
+    * we have a valid SSL context if we have a non-NULL session. */
+   SSL_get_client_random(ssl, client_random, SSL3_RANDOM_SIZE);
+@@ -2082,8 +2086,7 @@ static CURLcode ossl_connect_step1(struc
+   case CURL_SSLVERSION_TLSv1_2:
+   case CURL_SSLVERSION_TLSv1_3:
+     /* it will be handled later with the context options */
+-#if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && \
+-    !defined(LIBRESSL_VERSION_NUMBER)
++#if (OPENSSL_VERSION_NUMBER >= 0x10100000L)
+     req_method = TLS_client_method();
+ #else
+     req_method = SSLv23_client_method();