Add a new interface, OPENSSL_cpu_caps(), to return the currently running

cpu's specific hardware capabilities users of libcrypto might be interested
in, as an integer value. This deprecates the existing OPENSSL_ia32cap()
macro and the OPENSSL_ia32cap_loc() function (which returns the pointer so
that you can mess with stuff you shouldn't mess with).

Interpreting the value returned by OPENSSL_cpu_caps() is, of course,
machine-dependent.

Minor version bump for libcrypto.
ok beck@ jsing@

2 files changed, 17 insertions, 2 deletions

diff --git a/lib/libssl/src/crypto/cryptlib.c b/lib/libssl/src/crypto/cryptlib.c
index 896e3d39cfc..fff59f2dfd2 100644
--- a/lib/libssl/src/crypto/cryptlib.c
+++ b/lib/libssl/src/crypto/cryptlib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cryptlib.c,v 1.35 2015/06/27 22:42:02 doug Exp $ */
+/* $OpenBSD: cryptlib.c,v 1.36 2015/09/13 10:02:49 miod Exp $ */
 /* ====================================================================
  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  *
@@ -641,6 +641,12 @@ OPENSSL_ia32cap_loc(void)
 	return (unsigned long *)OPENSSL_ia32cap_P;
 }
 
+uint64_t
+OPENSSL_cpu_caps(void)
+{
+	return *(uint64_t *)OPENSSL_ia32cap_P;
+}
+
 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
 #define OPENSSL_CPUID_SETUP
 typedef unsigned long long IA32CAP;
@@ -673,6 +679,12 @@ OPENSSL_ia32cap_loc(void)
 {
 	return NULL;
 }
+
+uint64_t
+OPENSSL_cpu_caps(void)
+{
+	return 0;
+}
 #endif
 
 #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
diff --git a/lib/libssl/src/crypto/crypto.h b/lib/libssl/src/crypto/crypto.h
index 612b390f276..f53b858d197 100644
--- a/lib/libssl/src/crypto/crypto.h
+++ b/lib/libssl/src/crypto/crypto.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: crypto.h,v 1.37 2015/09/10 16:35:15 jsing Exp $ */
+/* $OpenBSD: crypto.h,v 1.38 2015/09/13 10:02:49 miod Exp $ */
 /* ====================================================================
  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  *
@@ -496,6 +496,9 @@ void OpenSSLDie(const char *file, int line, const char *assertion);
 
 unsigned long *OPENSSL_ia32cap_loc(void);
 #define OPENSSL_ia32cap (*(OPENSSL_ia32cap_loc()))
+
+uint64_t OPENSSL_cpu_caps(void);
+
 int OPENSSL_isservice(void);
 
 void OPENSSL_init(void);