commit c4683eb904238d20cb34a4c7661ffac04901283c

Author: Ingo Franzki <ifranzki@linux.ibm.com>

Date:   Tue Jun 29 17:35:30 2021 +0200

    COMMON: Add OPENSSL_VERSION_PREREQ macro to check for OpenSSL version

    Make the OPENSSL_VERSION_PREREQ macro available independent of the

    used OpenSSL version, so that the code can easily check for the OpenSSL

    version it is compiled with.

    Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>

diff --git a/usr/lib/common/defs.h b/usr/lib/common/defs.h

index 22d75d2d..8ab50517 100644

--- a/usr/lib/common/defs.h

+++ b/usr/lib/common/defs.h

@@ -17,6 +17,20 @@

 #ifndef _DEFS_H

 #define _DEFS_H

+#include <openssl/opensslv.h>

+

+#ifndef OPENSSL_VERSION_PREREQ

+    #if defined(OPENSSL_VERSION_MAJOR) && defined(OPENSSL_VERSION_MINOR)

+        #define OPENSSL_VERSION_PREREQ(maj, min)        \

+            ((OPENSSL_VERSION_MAJOR << 16) +        \

+            OPENSSL_VERSION_MINOR >= ((maj) << 16) + (min))

+    #else

+        #define OPENSSL_VERSION_PREREQ(maj, min)        \

+            (OPENSSL_VERSION_NUMBER >= (((maj) << 28) | \

+            ((min) << 20)))

+    #endif

+#endif

+

 #define MAX_SESSION_COUNT     64

 #define MAX_PIN_LEN           8

 #define MIN_PIN_LEN           4