From a1ee2fd9d2940fdf8814edc51e60e287c332b409 Mon Sep 17 00:00:00 2001
From: XMRig <support@xmrig.com>
Date: Sun, 29 Jun 2025 12:28:35 +0700
Subject: [PATCH] Improved LibreSSL support.

---
 cmake/os.cmake                    |  4 ++++
 src/base/kernel/Platform_unix.cpp |  8 ++++----
 src/base/net/tls/TlsContext.cpp   | 12 ++++++------
 src/version.h                     |  2 ++
 4 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/cmake/os.cmake b/cmake/os.cmake
index 8f70e9f4..74961192 100644
--- a/cmake/os.cmake
+++ b/cmake/os.cmake
@@ -17,6 +17,8 @@ else()
         set(XMRIG_OS_LINUX ON)
     elseif(CMAKE_SYSTEM_NAME STREQUAL FreeBSD OR CMAKE_SYSTEM_NAME STREQUAL DragonFly)
         set(XMRIG_OS_FREEBSD ON)
+    elseif(CMAKE_SYSTEM_NAME STREQUAL OpenBSD)
+        set(XMRIG_OS_OPENBSD ON)
     endif()
 endif()
 
@@ -43,6 +45,8 @@ elseif(XMRIG_OS_UNIX)
         add_definitions(-DXMRIG_OS_LINUX)
     elseif (XMRIG_OS_FREEBSD)
         add_definitions(-DXMRIG_OS_FREEBSD)
+    elseif (XMRIG_OS_OPENBSD)
+        add_definitions(-DXMRIG_OS_OPENBSD)
     endif()
 endif()
 
diff --git a/src/base/kernel/Platform_unix.cpp b/src/base/kernel/Platform_unix.cpp
index 4ffee214..0bfa4ff8 100644
--- a/src/base/kernel/Platform_unix.cpp
+++ b/src/base/kernel/Platform_unix.cpp
@@ -1,6 +1,6 @@
 /* XMRig
- * Copyright (c) 2018-2021 SChernykh   <https://github.com/SChernykh>
- * Copyright (c) 2016-2021 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright (c) 2018-2025 SChernykh   <https://github.com/SChernykh>
+ * Copyright (c) 2016-2025 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -71,11 +71,11 @@ char *xmrig::Platform::createUserAgent()
 
 
 #ifndef XMRIG_FEATURE_HWLOC
-#ifdef __DragonFly__
+#if defined(__DragonFly__) || defined(XMRIG_OS_OPENBSD)
 
 bool xmrig::Platform::setThreadAffinity(uint64_t cpu_id)
 {
-    return true;
+    return false;
 }
 
 #else
diff --git a/src/base/net/tls/TlsContext.cpp b/src/base/net/tls/TlsContext.cpp
index 54b904ea..410059fb 100644
--- a/src/base/net/tls/TlsContext.cpp
+++ b/src/base/net/tls/TlsContext.cpp
@@ -1,7 +1,7 @@
 /* XMRig
  * Copyright (c) 2018      Lee Clagett <https://github.com/vtnerd>
- * Copyright (c) 2018-2023 SChernykh   <https://github.com/SChernykh>
- * Copyright (c) 2016-2023 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright (c) 2018-2025 SChernykh   <https://github.com/SChernykh>
+ * Copyright (c) 2016-2025 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -45,7 +45,7 @@ namespace xmrig {
 
 
 // https://wiki.openssl.org/index.php/Diffie-Hellman_parameters
-#if OPENSSL_VERSION_NUMBER < 0x30000000L || defined(LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x30000000L || (defined(LIBRESSL_VERSION_NUMBER) && !defined(LIBRESSL_HAS_TLS1_3))
 static DH *get_dh2048()
 {
     static unsigned char dhp_2048[] = {
@@ -152,7 +152,7 @@ bool xmrig::TlsContext::load(const TlsConfig &config)
     SSL_CTX_set_options(m_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3);
     SSL_CTX_set_options(m_ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
 
-#   if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(LIBRESSL_VERSION_NUMBER)
+#   if OPENSSL_VERSION_NUMBER >= 0x1010100fL || defined(LIBRESSL_HAS_TLS1_3)
     SSL_CTX_set_max_early_data(m_ctx, 0);
 #   endif
 
@@ -180,7 +180,7 @@ bool xmrig::TlsContext::setCipherSuites(const char *ciphersuites)
         return true;
     }
 
-#   if OPENSSL_VERSION_NUMBER >= 0x1010100fL && !defined(LIBRESSL_VERSION_NUMBER)
+#   if OPENSSL_VERSION_NUMBER >= 0x1010100fL || defined(LIBRESSL_HAS_TLS1_3)
     if (SSL_CTX_set_ciphersuites(m_ctx, ciphersuites) == 1) {
         return true;
     }
@@ -194,7 +194,7 @@ bool xmrig::TlsContext::setCipherSuites(const char *ciphersuites)
 
 bool xmrig::TlsContext::setDH(const char *dhparam)
 {
-#   if OPENSSL_VERSION_NUMBER < 0x30000000L || defined(LIBRESSL_VERSION_NUMBER)
+#   if OPENSSL_VERSION_NUMBER < 0x30000000L || (defined(LIBRESSL_VERSION_NUMBER) && !defined(LIBRESSL_HAS_TLS1_3))
     DH *dh = nullptr;
 
     if (dhparam != nullptr) {
diff --git a/src/version.h b/src/version.h
index d5ff72a4..a6773b14 100644
--- a/src/version.h
+++ b/src/version.h
@@ -64,6 +64,8 @@
 #    define APP_OS "Linux"
 #elif defined XMRIG_OS_FREEBSD
 #    define APP_OS "FreeBSD"
+#elif defined XMRIG_OS_OPENBSD
+#    define APP_OS "OpenBSD"
 #else
 #    define APP_OS "Unknown OS"
 #endif