/*
- * Copyright 2009-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2009-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* 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
# 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"
+#include "internal/cryptlib.h"
+#include "crypto/ppc_arch.h"
unsigned int OPENSSL_ppccap_P = 0;
static sigset_t all_masked;
-#ifdef OPENSSL_BN_ASM_MONT
-int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
- const BN_ULONG *np, const BN_ULONG *n0, int num)
-{
- int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
- const BN_ULONG *np, const BN_ULONG *n0, int num);
- int bn_mul4x_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
- const BN_ULONG *np, const BN_ULONG *n0, int num);
-
- if (num < 4)
- return 0;
-
- if ((num & 3) == 0)
- return bn_mul4x_mont_int(rp, ap, bp, np, n0, num);
-
- /*
- * There used to be [optional] call to bn_mul_mont_fpu64 here,
- * but above subroutine is faster on contemporary processors.
- * Formulation means that there might be old processors where
- * FPU code path would be faster, POWER6 perhaps, but there was
- * no opportunity to figure it out...
- */
-
- return bn_mul_mont_int(rp, ap, bp, np, n0, num);
-}
-#endif
-
-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)
+static sigjmp_buf ill_jmp;
+static void ill_handler(int sig)
{
- OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha256_block_p8(ctx, inp, len) :
- sha256_block_ppc(ctx, inp, len);
+ siglongjmp(ill_jmp, sig);
}
-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) :
- sha512_block_ppc(ctx, inp, len);
-}
+void OPENSSL_fpu_probe(void);
+void OPENSSL_ppc64_probe(void);
+void OPENSSL_altivec_probe(void);
+void OPENSSL_crypto207_probe(void);
+void OPENSSL_madd300_probe(void);
+void OPENSSL_brd31_probe(void);
-#ifndef OPENSSL_NO_CHACHA
-void ChaCha20_ctr32_int(unsigned char *out, const unsigned char *inp,
- size_t len, const unsigned int key[8],
- const unsigned int counter[4]);
-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_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
+long OPENSSL_rdtsc_mftb(void);
+long OPENSSL_rdtsc_mfspr268(void);
-#ifndef OPENSSL_NO_POLY1305
-void poly1305_init_int(void *ctx, const unsigned char key[16]);
-void poly1305_blocks(void *ctx, const unsigned char *inp, size_t len,
- unsigned int padbit);
-void poly1305_emit(void *ctx, unsigned char mac[16],
- const unsigned int nonce[4]);
-void poly1305_init_fpu(void *ctx, const unsigned char key[16]);
-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])
+uint32_t OPENSSL_rdtsc(void)
{
- if (sizeof(size_t) == 4 && (OPENSSL_ppccap_P & PPC_FPU)) {
- poly1305_init_fpu(ctx, key);
- func[0] = (void*)(uintptr_t)poly1305_blocks_fpu;
- func[1] = (void*)(uintptr_t)poly1305_emit_fpu;
- } else {
- poly1305_init_int(ctx, key);
- func[0] = (void*)(uintptr_t)poly1305_blocks;
- func[1] = (void*)(uintptr_t)poly1305_emit;
- }
- return 1;
+ if (OPENSSL_ppccap_P & PPC_MFTB)
+ return OPENSSL_rdtsc_mftb();
+ else if (OPENSSL_ppccap_P & PPC_MFSPR268)
+ return OPENSSL_rdtsc_mfspr268();
+ else
+ return 0;
}
-#endif
-#ifdef ECP_NISTZ256_ASM
-void ecp_nistz256_mul_mont(unsigned long res[4], const unsigned long a[4],
- const unsigned long b[4]);
+size_t OPENSSL_instrument_bus_mftb(unsigned int *, size_t);
+size_t OPENSSL_instrument_bus_mfspr268(unsigned int *, size_t);
-void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4]);
-void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4])
+size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt)
{
- static const unsigned long RR[] = { 0x0000000000000003U,
- 0xfffffffbffffffffU,
- 0xfffffffffffffffeU,
- 0x00000004fffffffdU };
-
- ecp_nistz256_mul_mont(res, in, RR);
+ if (OPENSSL_ppccap_P & PPC_MFTB)
+ return OPENSSL_instrument_bus_mftb(out, cnt);
+ else if (OPENSSL_ppccap_P & PPC_MFSPR268)
+ return OPENSSL_instrument_bus_mfspr268(out, cnt);
+ else
+ return 0;
}
-void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4]);
-void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4])
-{
- static const unsigned long one[] = { 1, 0, 0, 0 };
+size_t OPENSSL_instrument_bus2_mftb(unsigned int *, size_t, size_t);
+size_t OPENSSL_instrument_bus2_mfspr268(unsigned int *, size_t, size_t);
- ecp_nistz256_mul_mont(res, in, one);
-}
-#endif
-
-static sigjmp_buf ill_jmp;
-static void ill_handler(int sig)
+size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max)
{
- siglongjmp(ill_jmp, sig);
+ if (OPENSSL_ppccap_P & PPC_MFTB)
+ return OPENSSL_instrument_bus2_mftb(out, cnt, max);
+ else if (OPENSSL_ppccap_P & PPC_MFSPR268)
+ return OPENSSL_instrument_bus2_mfspr268(out, cnt, max);
+ else
+ return 0;
}
-void OPENSSL_fpu_probe(void);
-void OPENSSL_ppc64_probe(void);
-void OPENSSL_altivec_probe(void);
-void OPENSSL_crypto207_probe(void);
-void OPENSSL_madd300_probe(void);
-
#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
# if __GLIBC_PREREQ(2, 16)
# include <sys/auxv.h>
# define OSSL_IMPLEMENT_GETAUXVAL
+# elif defined(__ANDROID_API__)
+/* see https://developer.android.google.cn/ndk/guides/cpu-features */
+# if __ANDROID_API__ >= 18
+# include <sys/auxv.h>
+# define OSSL_IMPLEMENT_GETAUXVAL
+# endif
+# endif
+#endif
+
+#if defined(__FreeBSD__)
+# include <sys/param.h>
+# if __FreeBSD_version >= 1200000
+# include <sys/auxv.h>
+# define OSSL_IMPLEMENT_GETAUXVAL
+
+static unsigned long getauxval(unsigned long key)
+{
+ unsigned long val = 0ul;
+
+ if (elf_aux_info((int)key, &val, sizeof(val)) != 0)
+ return 0ul;
+
+ return val;
+}
# endif
#endif
/* I wish <sys/auxv.h> was universally available */
-#define HWCAP 16 /* AT_HWCAP */
+#ifndef AT_HWCAP
+# define AT_HWCAP 16 /* AT_HWCAP */
+#endif
#define HWCAP_PPC64 (1U << 30)
#define HWCAP_ALTIVEC (1U << 28)
#define HWCAP_FPU (1U << 27)
#define HWCAP_POWER6_EXT (1U << 9)
#define HWCAP_VSX (1U << 7)
-#define HWCAP2 26 /* AT_HWCAP2 */
+#ifndef AT_HWCAP2
+# define AT_HWCAP2 26 /* AT_HWCAP2 */
+#endif
#define HWCAP_VEC_CRYPTO (1U << 25)
#define HWCAP_ARCH_3_00 (1U << 23)
+#define HWCAP_ARCH_3_1 (1U << 18)
# if defined(__GNUC__) && __GNUC__>=2
__attribute__ ((constructor))
if (__power_set(0xffffffffU<<17)) /* POWER9 and later */
OPENSSL_ppccap_P |= PPC_MADD300;
+ if (__power_set(0xffffffffU<<18)) /* POWER10 and later */
+ OPENSSL_ppccap_P |= PPC_BRD31;
+
return;
# endif
#endif
#ifdef OSSL_IMPLEMENT_GETAUXVAL
{
- unsigned long hwcap = getauxval(HWCAP);
+ unsigned long hwcap = getauxval(AT_HWCAP);
+ unsigned long hwcap2 = getauxval(AT_HWCAP2);
if (hwcap & HWCAP_FPU) {
OPENSSL_ppccap_P |= PPC_FPU;
if (hwcap & HWCAP_ALTIVEC) {
OPENSSL_ppccap_P |= PPC_ALTIVEC;
- if ((hwcap & HWCAP_VSX) && (getauxval(HWCAP2) & HWCAP_VEC_CRYPTO))
+ if ((hwcap & HWCAP_VSX) && (hwcap2 & HWCAP_VEC_CRYPTO))
OPENSSL_ppccap_P |= PPC_CRYPTO207;
}
- if (hwcap & HWCAP_ARCH_3_00) {
+ if (hwcap2 & HWCAP_ARCH_3_00) {
OPENSSL_ppccap_P |= PPC_MADD300;
}
- return;
+ if (hwcap2 & HWCAP_ARCH_3_1) {
+ OPENSSL_ppccap_P |= PPC_BRD31;
+ }
}
#endif
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
sigaction(SIGILL, &ill_act, &ill_oact);
- if (sigsetjmp(ill_jmp,1) == 0) {
+#ifndef OSSL_IMPLEMENT_GETAUXVAL
+ if (sigsetjmp(ill_jmp, 1) == 0) {
OPENSSL_fpu_probe();
OPENSSL_ppccap_P |= PPC_FPU;
if (sizeof(size_t) == 4) {
-#ifdef __linux
+# ifdef __linux
struct utsname uts;
if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0)
-#endif
+# endif
if (sigsetjmp(ill_jmp, 1) == 0) {
OPENSSL_ppc64_probe();
OPENSSL_ppccap_P |= PPC_FPU64;
OPENSSL_madd300_probe();
OPENSSL_ppccap_P |= PPC_MADD300;
}
+#endif
+
+ if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_rdtsc_mftb();
+ OPENSSL_ppccap_P |= PPC_MFTB;
+ } else if (sigsetjmp(ill_jmp, 1) == 0) {
+ OPENSSL_rdtsc_mfspr268();
+ OPENSSL_ppccap_P |= PPC_MFSPR268;
+ }
sigaction(SIGILL, &ill_oact, NULL);
sigprocmask(SIG_SETMASK, &oset, NULL);
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