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openssl/crypto/s390xcap.c
Ingo Franzki f928304a9d s390x: Don't probe crypto cards for ME/CRT offloading during initialization 
Probing for crypto cards during initialization by issuing an ioctl to the
zcrypt device driver can cause a lot of traffic and overhead, because it
runs for each and every application that uses OpenSSL, regardless if that
application will later perform ME or CRT operations or not.

Fix this by performing no probing during initialization, but detect the
crypto card availability only at the first ME/CRT operation that is subject
to be offloaded. If the ioctl returns ENODEV, then no suitable crypto
card is available in the system, and we disable further offloading
attempts by setting flag OPENSSL_s390xcex_nodev to 1.

Setting the global flag OPENSSL_s390xcex_nodev in case of ENODEV is
intentionally not made in a thread save manner, because the only thing
that could happen is that another thread, that misses the flag update,
also issues an ioctl and gets ENODEV as well.

The file descriptor is not closed in such error cases, because this could
cause raise conditions where we would close a foreign file if the same
file descriptor got reused by another thread. The file descriptor is finally
closed during termination by the atexit handler.

In case the ioctl returns ENOTTY then this indicates that the file descriptor
was closed (e.g. by a sandbox), but in the meantime the same file descriptor
has been reused for another file. Do not use the file descriptor anymore,
and also do not close it during termination.

Fixes: 79040cf29e

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

Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25576)
2024-10-23 15:07:01 +02:00

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/*
* Copyright 2010-2023 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
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
#include "internal/cryptlib.h"
#include "crypto/ctype.h"
#include "s390x_arch.h"
#if defined(OPENSSL_SYS_LINUX) && !defined(FIPS_MODULE)
# include <sys/types.h>
# include <sys/stat.h>
# include <fcntl.h>
# include <asm/zcrypt.h>
# include <sys/ioctl.h>
# include <unistd.h>
#endif
#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
# if __GLIBC_PREREQ(2, 16)
# include <sys/auxv.h>
# if defined(HWCAP_S390_STFLE) && defined(HWCAP_S390_VX)
# define OSSL_IMPLEMENT_GETAUXVAL
# endif
# endif
#endif
#define LEN 128
#define STR_(S) #S
#define STR(S) STR_(S)
#define TOK_FUNC(NAME) \
(sscanf(tok_begin, \
" " STR(NAME) " : %" STR(LEN) "[^:] : " \
"%" STR(LEN) "s %" STR(LEN) "s ", \
tok[0], tok[1], tok[2]) == 2) { \
\
off = (tok[0][0] == '~') ? 1 : 0; \
if (sscanf(tok[0] + off, "%llx", &cap->NAME[0]) != 1) \
goto ret; \
if (off) \
cap->NAME[0] = ~cap->NAME[0]; \
\
off = (tok[1][0] == '~') ? 1 : 0; \
if (sscanf(tok[1] + off, "%llx", &cap->NAME[1]) != 1) \
goto ret; \
if (off) \
cap->NAME[1] = ~cap->NAME[1]; \
}
#define TOK_CPU_ALIAS(NAME, STRUCT_NAME) \
(sscanf(tok_begin, \
" %" STR(LEN) "s %" STR(LEN) "s ", \
tok[0], tok[1]) == 1 \
&& !strcmp(tok[0], #NAME)) { \
memcpy(cap, &STRUCT_NAME, sizeof(*cap)); \
}
#define TOK_CPU(NAME) TOK_CPU_ALIAS(NAME, NAME)
#ifndef OSSL_IMPLEMENT_GETAUXVAL
static sigjmp_buf ill_jmp;
static void ill_handler(int sig)
{
siglongjmp(ill_jmp, sig);
}
void OPENSSL_vx_probe(void);
#endif
static const char *env;
static int parse_env(struct OPENSSL_s390xcap_st *cap, int *cex);
void OPENSSL_s390x_facilities(void);
void OPENSSL_s390x_functions(void);
struct OPENSSL_s390xcap_st OPENSSL_s390xcap_P;
#ifdef S390X_MOD_EXP
int OPENSSL_s390xcex;
int OPENSSL_s390xcex_nodev;
#if defined(__GNUC__)
__attribute__ ((visibility("hidden")))
#endif
void OPENSSL_s390x_cleanup(void);
#if defined(__GNUC__)
__attribute__ ((visibility("hidden")))
#endif
void OPENSSL_s390x_cleanup(void)
{
if (OPENSSL_s390xcex != -1) {
(void)close(OPENSSL_s390xcex);
OPENSSL_s390xcex = -1;
}
}
#endif
#if defined(__GNUC__) && defined(__linux)
__attribute__ ((visibility("hidden")))
#endif
void OPENSSL_cpuid_setup(void)
{
struct OPENSSL_s390xcap_st cap;
int cex = 1;
if (OPENSSL_s390xcap_P.stfle[0])
return;
/* set a bit that will not be tested later */
OPENSSL_s390xcap_P.stfle[0] |= S390X_CAPBIT(0);
#if defined(OSSL_IMPLEMENT_GETAUXVAL)
{
const unsigned long hwcap = getauxval(AT_HWCAP);
/* protection against missing store-facility-list-extended */
if (hwcap & HWCAP_S390_STFLE)
OPENSSL_s390x_facilities();
/* protection against disabled vector facility */
if (!(hwcap & HWCAP_S390_VX)) {
OPENSSL_s390xcap_P.stfle[2] &= ~(S390X_CAPBIT(S390X_VX)
| S390X_CAPBIT(S390X_VXD)
| S390X_CAPBIT(S390X_VXE));
}
}
#else
{
sigset_t oset;
struct sigaction ill_act, oact_ill, oact_fpe;
memset(&ill_act, 0, sizeof(ill_act));
ill_act.sa_handler = ill_handler;
sigfillset(&ill_act.sa_mask);
sigdelset(&ill_act.sa_mask, SIGILL);
sigdelset(&ill_act.sa_mask, SIGFPE);
sigdelset(&ill_act.sa_mask, SIGTRAP);
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
sigaction(SIGILL, &ill_act, &oact_ill);
sigaction(SIGFPE, &ill_act, &oact_fpe);
/* protection against missing store-facility-list-extended */
if (sigsetjmp(ill_jmp, 1) == 0)
OPENSSL_s390x_facilities();
/* protection against disabled vector facility */
if ((OPENSSL_s390xcap_P.stfle[2] & S390X_CAPBIT(S390X_VX))
&& (sigsetjmp(ill_jmp, 1) == 0)) {
OPENSSL_vx_probe();
} else {
OPENSSL_s390xcap_P.stfle[2] &= ~(S390X_CAPBIT(S390X_VX)
| S390X_CAPBIT(S390X_VXD)
| S390X_CAPBIT(S390X_VXE));
}
sigaction(SIGFPE, &oact_fpe, NULL);
sigaction(SIGILL, &oact_ill, NULL);
sigprocmask(SIG_SETMASK, &oset, NULL);
}
#endif
env = getenv("OPENSSL_s390xcap");
if (env != NULL) {
if (!parse_env(&cap, &cex))
env = NULL;
}
if (env != NULL) {
OPENSSL_s390xcap_P.stfle[0] &= cap.stfle[0];
OPENSSL_s390xcap_P.stfle[1] &= cap.stfle[1];
OPENSSL_s390xcap_P.stfle[2] &= cap.stfle[2];
}
OPENSSL_s390x_functions(); /* check OPENSSL_s390xcap_P.stfle */
if (env != NULL) {
OPENSSL_s390xcap_P.kimd[0] &= cap.kimd[0];
OPENSSL_s390xcap_P.kimd[1] &= cap.kimd[1];
OPENSSL_s390xcap_P.klmd[0] &= cap.klmd[0];
OPENSSL_s390xcap_P.klmd[1] &= cap.klmd[1];
OPENSSL_s390xcap_P.km[0] &= cap.km[0];
OPENSSL_s390xcap_P.km[1] &= cap.km[1];
OPENSSL_s390xcap_P.kmc[0] &= cap.kmc[0];
OPENSSL_s390xcap_P.kmc[1] &= cap.kmc[1];
OPENSSL_s390xcap_P.kmac[0] &= cap.kmac[0];
OPENSSL_s390xcap_P.kmac[1] &= cap.kmac[1];
OPENSSL_s390xcap_P.kmctr[0] &= cap.kmctr[0];
OPENSSL_s390xcap_P.kmctr[1] &= cap.kmctr[1];
OPENSSL_s390xcap_P.kmo[0] &= cap.kmo[0];
OPENSSL_s390xcap_P.kmo[1] &= cap.kmo[1];
OPENSSL_s390xcap_P.kmf[0] &= cap.kmf[0];
OPENSSL_s390xcap_P.kmf[1] &= cap.kmf[1];
OPENSSL_s390xcap_P.prno[0] &= cap.prno[0];
OPENSSL_s390xcap_P.prno[1] &= cap.prno[1];
OPENSSL_s390xcap_P.kma[0] &= cap.kma[0];
OPENSSL_s390xcap_P.kma[1] &= cap.kma[1];
OPENSSL_s390xcap_P.pcc[0] &= cap.pcc[0];
OPENSSL_s390xcap_P.pcc[1] &= cap.pcc[1];
OPENSSL_s390xcap_P.kdsa[0] &= cap.kdsa[0];
OPENSSL_s390xcap_P.kdsa[1] &= cap.kdsa[1];
}
#ifdef S390X_MOD_EXP
if (cex == 0) {
OPENSSL_s390xcex = -1;
} else {
OPENSSL_s390xcex = open("/dev/z90crypt", O_RDWR | O_CLOEXEC);
OPENSSL_atexit(OPENSSL_s390x_cleanup);
}
OPENSSL_s390xcex_nodev = 0;
#endif
}
static int parse_env(struct OPENSSL_s390xcap_st *cap, int *cex)
{
/*-
* CPU model data
* (only the STFLE- and QUERY-bits relevant to libcrypto are set)
*/
/*-
* z900 (2000) - z/Architecture POP SA22-7832-00
* Facility detection would fail on real hw (no STFLE).
*/
static const struct OPENSSL_s390xcap_st z900 = {
/*.stfle = */{0ULL, 0ULL, 0ULL, 0ULL},
/*.kimd = */{0ULL, 0ULL},
/*.klmd = */{0ULL, 0ULL},
/*.km = */{0ULL, 0ULL},
/*.kmc = */{0ULL, 0ULL},
/*.kmac = */{0ULL, 0ULL},
/*.kmctr = */{0ULL, 0ULL},
/*.kmo = */{0ULL, 0ULL},
/*.kmf = */{0ULL, 0ULL},
/*.prno = */{0ULL, 0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{0ULL, 0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z990 (2003) - z/Architecture POP SA22-7832-02
* Implements MSA. Facility detection would fail on real hw (no STFLE).
*/
static const struct OPENSSL_s390xcap_st z990 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA),
0ULL, 0ULL, 0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1),
0ULL},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kmctr = */{0ULL, 0ULL},
/*.kmo = */{0ULL, 0ULL},
/*.kmf = */{0ULL, 0ULL},
/*.prno = */{0ULL, 0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{0ULL, 0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z9 (2005) - z/Architecture POP SA22-7832-04
* Implements MSA and MSA1.
*/
static const struct OPENSSL_s390xcap_st z9 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
0ULL, 0ULL, 0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256),
0ULL},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kmctr = */{0ULL, 0ULL},
/*.kmo = */{0ULL, 0ULL},
/*.kmf = */{0ULL, 0ULL},
/*.prno = */{0ULL, 0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{0ULL, 0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z10 (2008) - z/Architecture POP SA22-7832-06
* Implements MSA and MSA1-2.
*/
static const struct OPENSSL_s390xcap_st z10 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
0ULL, 0ULL, 0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kmctr = */{0ULL, 0ULL},
/*.kmo = */{0ULL, 0ULL},
/*.kmf = */{0ULL, 0ULL},
/*.prno = */{0ULL, 0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{0ULL, 0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z196 (2010) - z/Architecture POP SA22-7832-08
* Implements MSA and MSA1-4.
*/
static const struct OPENSSL_s390xcap_st z196 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
0ULL, 0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
S390X_CAPBIT(S390X_GHASH)},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmctr = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmo = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmf = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.prno = */{0ULL, 0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* zEC12 (2012) - z/Architecture POP SA22-7832-09
* Implements MSA and MSA1-4.
*/
static const struct OPENSSL_s390xcap_st zEC12 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
0ULL, 0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
S390X_CAPBIT(S390X_GHASH)},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmctr = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmo = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmf = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.prno = */{0ULL, 0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z13 (2015) - z/Architecture POP SA22-7832-10
* Implements MSA and MSA1-5.
*/
static const struct OPENSSL_s390xcap_st z13 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF)
| S390X_CAPBIT(S390X_MSA5),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
S390X_CAPBIT(S390X_VX),
0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
S390X_CAPBIT(S390X_GHASH)},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmctr = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmo = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmf = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.prno = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_512_DRNG),
0ULL},
/*.kma = */{0ULL, 0ULL},
/*.pcc = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z14 (2017) - z/Architecture POP SA22-7832-11
* Implements MSA and MSA1-8.
*/
static const struct OPENSSL_s390xcap_st z14 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF)
| S390X_CAPBIT(S390X_MSA5),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
S390X_CAPBIT(S390X_VX)
| S390X_CAPBIT(S390X_VXD)
| S390X_CAPBIT(S390X_VXE)
| S390X_CAPBIT(S390X_MSA8),
0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512)
| S390X_CAPBIT(S390X_SHA3_224)
| S390X_CAPBIT(S390X_SHA3_256)
| S390X_CAPBIT(S390X_SHA3_384)
| S390X_CAPBIT(S390X_SHA3_512)
| S390X_CAPBIT(S390X_SHAKE_128)
| S390X_CAPBIT(S390X_SHAKE_256),
S390X_CAPBIT(S390X_GHASH)},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512)
| S390X_CAPBIT(S390X_SHA3_224)
| S390X_CAPBIT(S390X_SHA3_256)
| S390X_CAPBIT(S390X_SHA3_384)
| S390X_CAPBIT(S390X_SHA3_512)
| S390X_CAPBIT(S390X_SHAKE_128)
| S390X_CAPBIT(S390X_SHAKE_256),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmctr = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmo = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmf = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.prno = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_512_DRNG),
S390X_CAPBIT(S390X_TRNG)},
/*.kma = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.pcc = */{S390X_CAPBIT(S390X_QUERY),
0ULL},
/*.kdsa = */{0ULL, 0ULL},
};
/*-
* z15 (2019) - z/Architecture POP SA22-7832-12
* Implements MSA and MSA1-9.
*/
static const struct OPENSSL_s390xcap_st z15 = {
/*.stfle = */{S390X_CAPBIT(S390X_MSA)
| S390X_CAPBIT(S390X_STCKF)
| S390X_CAPBIT(S390X_MSA5),
S390X_CAPBIT(S390X_MSA3)
| S390X_CAPBIT(S390X_MSA4),
S390X_CAPBIT(S390X_VX)
| S390X_CAPBIT(S390X_VXD)
| S390X_CAPBIT(S390X_VXE)
| S390X_CAPBIT(S390X_MSA8)
| S390X_CAPBIT(S390X_MSA9),
0ULL},
/*.kimd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512)
| S390X_CAPBIT(S390X_SHA3_224)
| S390X_CAPBIT(S390X_SHA3_256)
| S390X_CAPBIT(S390X_SHA3_384)
| S390X_CAPBIT(S390X_SHA3_512)
| S390X_CAPBIT(S390X_SHAKE_128)
| S390X_CAPBIT(S390X_SHAKE_256),
S390X_CAPBIT(S390X_GHASH)},
/*.klmd = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_1)
| S390X_CAPBIT(S390X_SHA_256)
| S390X_CAPBIT(S390X_SHA_512)
| S390X_CAPBIT(S390X_SHA3_224)
| S390X_CAPBIT(S390X_SHA3_256)
| S390X_CAPBIT(S390X_SHA3_384)
| S390X_CAPBIT(S390X_SHA3_512)
| S390X_CAPBIT(S390X_SHAKE_128)
| S390X_CAPBIT(S390X_SHAKE_256),
0ULL},
/*.km = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256)
| S390X_CAPBIT(S390X_XTS_AES_128)
| S390X_CAPBIT(S390X_XTS_AES_256),
0ULL},
/*.kmc = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmac = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmctr = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmo = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.kmf = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.prno = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_SHA_512_DRNG),
S390X_CAPBIT(S390X_TRNG)},
/*.kma = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_AES_128)
| S390X_CAPBIT(S390X_AES_192)
| S390X_CAPBIT(S390X_AES_256),
0ULL},
/*.pcc = */{S390X_CAPBIT(S390X_QUERY),
S390X_CAPBIT(S390X_SCALAR_MULTIPLY_P256)
| S390X_CAPBIT(S390X_SCALAR_MULTIPLY_P384)
| S390X_CAPBIT(S390X_SCALAR_MULTIPLY_P521)
| S390X_CAPBIT(S390X_SCALAR_MULTIPLY_ED25519)
| S390X_CAPBIT(S390X_SCALAR_MULTIPLY_ED448)
| S390X_CAPBIT(S390X_SCALAR_MULTIPLY_X25519)
| S390X_CAPBIT(S390X_SCALAR_MULTIPLY_X448)},
/*.kdsa = */{S390X_CAPBIT(S390X_QUERY)
| S390X_CAPBIT(S390X_ECDSA_VERIFY_P256)
| S390X_CAPBIT(S390X_ECDSA_VERIFY_P384)
| S390X_CAPBIT(S390X_ECDSA_VERIFY_P521)
| S390X_CAPBIT(S390X_ECDSA_SIGN_P256)
| S390X_CAPBIT(S390X_ECDSA_SIGN_P384)
| S390X_CAPBIT(S390X_ECDSA_SIGN_P521)
| S390X_CAPBIT(S390X_EDDSA_VERIFY_ED25519)
| S390X_CAPBIT(S390X_EDDSA_VERIFY_ED448)
| S390X_CAPBIT(S390X_EDDSA_SIGN_ED25519)
| S390X_CAPBIT(S390X_EDDSA_SIGN_ED448),
0ULL},
};
/*-
* z16 (2022) - z/Architecture POP
* Implements MSA and MSA1-9 (same as z15, no need to repeat).
*/
char *tok_begin, *tok_end, *buff, tok[S390X_STFLE_MAX][LEN + 1];
int rc, off, i, n;
buff = malloc(strlen(env) + 1);
if (buff == NULL)
return 0;
rc = 0;
memset(cap, ~0, sizeof(*cap));
strcpy(buff, env);
tok_begin = buff + strspn(buff, ";");
strtok(tok_begin, ";");
tok_end = strtok(NULL, ";");
while (tok_begin != NULL) {
/* stfle token */
if ((n = sscanf(tok_begin,
" stfle : %" STR(LEN) "[^:] : "
"%" STR(LEN) "[^:] : %" STR(LEN) "s ",
tok[0], tok[1], tok[2]))) {
for (i = 0; i < n; i++) {
off = (tok[i][0] == '~') ? 1 : 0;
if (sscanf(tok[i] + off, "%llx", &cap->stfle[i]) != 1)
goto ret;
if (off)
cap->stfle[i] = ~cap->stfle[i];
}
}
/* query function tokens */
else if TOK_FUNC(kimd)
else if TOK_FUNC(klmd)
else if TOK_FUNC(km)
else if TOK_FUNC(kmc)
else if TOK_FUNC(kmac)
else if TOK_FUNC(kmctr)
else if TOK_FUNC(kmo)
else if TOK_FUNC(kmf)
else if TOK_FUNC(prno)
else if TOK_FUNC(kma)
else if TOK_FUNC(pcc)
else if TOK_FUNC(kdsa)
/* CPU model tokens */
else if TOK_CPU(z900)
else if TOK_CPU(z990)
else if TOK_CPU(z9)
else if TOK_CPU(z10)
else if TOK_CPU(z196)
else if TOK_CPU(zEC12)
else if TOK_CPU(z13)
else if TOK_CPU(z14)
else if TOK_CPU(z15)
else if TOK_CPU_ALIAS(z16, z15)
/* nocex to deactivate cex support */
else if (sscanf(tok_begin, " %" STR(LEN) "s %" STR(LEN) "s ",
tok[0], tok[1]) == 1
&& !strcmp(tok[0], "nocex")) {
*cex = 0;
}
/* whitespace(ignored) or invalid tokens */
else {
while (*tok_begin != '\0') {
if (!ossl_isspace(*tok_begin))
goto ret;
tok_begin++;
}
}
tok_begin = tok_end;
tok_end = strtok(NULL, ";");
}
rc = 1;
ret:
free(buff);
return rc;
}
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