crypto/armcap.c, crypto/ppccap.c: stricter use of getauxval()

[openssl.git] / crypto / ppccap.c

diff --git a/crypto/ppccap.c b/crypto/ppccap.c
index b2b898e797a021aaf36088820bd040470cee2871..e50f7574b807ceb545bfd9f179872b4e6350075d 100644 (file)
--- a/crypto/ppccap.c
+++ b/crypto/ppccap.c
@@ -1,7 +1,7 @@
 /*
- * Copyright 2009-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2009-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
@@ -22,8 +22,15 @@
 #  define __power_set(a) (_system_configuration.implementation & (a))
 # endif
 #endif
+#if defined(__APPLE__) && defined(__MACH__)
+# include <sys/types.h>
+# include <sys/sysctl.h>
+#endif
 #include <openssl/crypto.h>
 #include <openssl/bn.h>
+#include <internal/cryptlib.h>
+#include <internal/chacha.h>
+#include "bn/bn_lcl.h"
 
 #include "ppc_arch.h"
 
@@ -60,6 +67,7 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
 
 void sha256_block_p8(void *ctx, const void *inp, size_t len);
 void sha256_block_ppc(void *ctx, const void *inp, size_t len);
+void sha256_block_data_order(void *ctx, const void *inp, size_t len);
 void sha256_block_data_order(void *ctx, const void *inp, size_t len)
 {
     OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha256_block_p8(ctx, inp, len) :
@@ -68,6 +76,7 @@ void sha256_block_data_order(void *ctx, const void *inp, size_t len)
 
 void sha512_block_p8(void *ctx, const void *inp, size_t len);
 void sha512_block_ppc(void *ctx, const void *inp, size_t len);
+void sha512_block_data_order(void *ctx, const void *inp, size_t len);
 void sha512_block_data_order(void *ctx, const void *inp, size_t len)
 {
     OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha512_block_p8(ctx, inp, len) :
@@ -81,13 +90,18 @@ void ChaCha20_ctr32_int(unsigned char *out, const unsigned char *inp,
 void ChaCha20_ctr32_vmx(unsigned char *out, const unsigned char *inp,
                         size_t len, const unsigned int key[8],
                         const unsigned int counter[4]);
+void ChaCha20_ctr32_vsx(unsigned char *out, const unsigned char *inp,
+                        size_t len, const unsigned int key[8],
+                        const unsigned int counter[4]);
 void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
                     size_t len, const unsigned int key[8],
                     const unsigned int counter[4])
 {
-    OPENSSL_ppccap_P & PPC_ALTIVEC
-        ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
-        : ChaCha20_ctr32_int(out, inp, len, key, counter);
+    OPENSSL_ppccap_P & PPC_CRYPTO207
+        ? ChaCha20_ctr32_vsx(out, inp, len, key, counter)
+        : OPENSSL_ppccap_P & PPC_ALTIVEC
+            ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
+            : ChaCha20_ctr32_int(out, inp, len, key, counter);
 }
 #endif
 
@@ -102,16 +116,17 @@ void poly1305_blocks_fpu(void *ctx, const unsigned char *inp, size_t len,
                          unsigned int padbit);
 void poly1305_emit_fpu(void *ctx, unsigned char mac[16],
                        const unsigned int nonce[4]);
+int poly1305_init(void *ctx, const unsigned char key[16], void *func[2]);
 int poly1305_init(void *ctx, const unsigned char key[16], void *func[2])
 {
     if (sizeof(size_t) == 4 && (OPENSSL_ppccap_P & PPC_FPU)) {
         poly1305_init_fpu(ctx, key);
-        func[0] = poly1305_blocks_fpu;
-        func[1] = poly1305_emit_fpu;
+        func[0] = (void*)(uintptr_t)poly1305_blocks_fpu;
+        func[1] = (void*)(uintptr_t)poly1305_emit_fpu;
     } else {
         poly1305_init_int(ctx, key);
-        func[0] = poly1305_blocks;
-        func[1] = poly1305_emit;
+        func[0] = (void*)(uintptr_t)poly1305_blocks;
+        func[1] = (void*)(uintptr_t)poly1305_emit;
     }
     return 1;
 }
@@ -153,16 +168,11 @@ void OPENSSL_altivec_probe(void);
 void OPENSSL_crypto207_probe(void);
 void OPENSSL_madd300_probe(void);
 
-/*
- * Use a weak reference to getauxval() so we can use it if it is available
- * but don't break the build if it is not. Note that this is *link-time*
- * feature detection, not *run-time*. In other words if we link with
- * symbol present, it's expected to be present even at run-time.
- */
-#if defined(__GNUC__) && __GNUC__>=2 && defined(__ELF__)
-extern unsigned long getauxval(unsigned long type) __attribute__ ((weak));
-#else
-static unsigned long (*getauxval) (unsigned long) = NULL;
+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
+# if __GLIBC_PREREQ(2, 16)
+#  include <sys/auxv.h>
+#  define OSSL_IMPLEMENT_GETAUXVAL
+# endif
 #endif
 
 /* I wish <sys/auxv.h> was universally available */
@@ -240,7 +250,30 @@ void OPENSSL_cpuid_setup(void)
 # endif
 #endif
 
-    if (getauxval != NULL) {
+#if defined(__APPLE__) && defined(__MACH__)
+    OPENSSL_ppccap_P |= PPC_FPU;
+
+    {
+        int val;
+        size_t len = sizeof(val);
+
+        if (sysctlbyname("hw.optional.64bitops", &val, &len, NULL, 0) == 0) {
+            if (val)
+                OPENSSL_ppccap_P |= PPC_FPU64;
+        }
+
+        len = sizeof(val);
+        if (sysctlbyname("hw.optional.altivec", &val, &len, NULL, 0) == 0) {
+            if (val)
+                OPENSSL_ppccap_P |= PPC_ALTIVEC;
+        }
+
+        return;
+    }
+#endif
+
+#ifdef OSSL_IMPLEMENT_GETAUXVAL
+    {
         unsigned long hwcap = getauxval(HWCAP);
 
         if (hwcap & HWCAP_FPU) {
@@ -270,6 +303,7 @@ void OPENSSL_cpuid_setup(void)
 
         return;
     }
+#endif
 
     sigfillset(&all_masked);
     sigdelset(&all_masked, SIGILL);