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@@ -1,2718 +0,0 @@
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-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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-From: Eneas U de Queiroz <[email protected]>
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-Date: Tue, 6 Nov 2018 10:57:03 -0200
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-Subject: e_devcrypto: make the /dev/crypto engine dynamic
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-
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-Engine has been moved from crypto/engine/eng_devcrypto.c to
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-engines/e_devcrypto.c.
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-
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-Signed-off-by: Eneas U de Queiroz <[email protected]>
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-
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---- a/crypto/engine/build.info
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-+++ b/crypto/engine/build.info
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-@@ -6,6 +6,3 @@ SOURCE[../../libcrypto]=\
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- tb_cipher.c tb_digest.c tb_pkmeth.c tb_asnmth.c tb_eckey.c \
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- eng_openssl.c eng_cnf.c eng_dyn.c \
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- eng_rdrand.c
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--IF[{- !$disabled{devcryptoeng} -}]
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-- SOURCE[../../libcrypto]=eng_devcrypto.c
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--ENDIF
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---- a/crypto/init.c
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-+++ b/crypto/init.c
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-@@ -328,18 +328,6 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_
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- engine_load_openssl_int();
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- return 1;
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- }
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--# ifndef OPENSSL_NO_DEVCRYPTOENG
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--static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT;
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--DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto)
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--{
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--# ifdef OPENSSL_INIT_DEBUG
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-- fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: "
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-- "engine_load_devcrypto_int()\n");
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--# endif
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-- engine_load_devcrypto_int();
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-- return 1;
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--}
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--# endif
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-
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- # ifndef OPENSSL_NO_RDRAND
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- static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT;
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-@@ -364,6 +352,18 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_
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- return 1;
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- }
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- # ifndef OPENSSL_NO_STATIC_ENGINE
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-+# ifndef OPENSSL_NO_DEVCRYPTOENG
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-+static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT;
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-+DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto)
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-+{
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-+# ifdef OPENSSL_INIT_DEBUG
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-+ fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: "
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-+ "engine_load_devcrypto_int()\n");
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-+# endif
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-+ engine_load_devcrypto_int();
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-+ return 1;
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-+}
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-+# endif
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- # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
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- static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT;
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- DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock)
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-@@ -704,11 +704,6 @@ int OPENSSL_init_crypto(uint64_t opts, c
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- if ((opts & OPENSSL_INIT_ENGINE_OPENSSL)
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- && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl))
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- return 0;
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--# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_DEVCRYPTOENG)
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-- if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
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-- && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto))
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-- return 0;
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--# endif
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- # ifndef OPENSSL_NO_RDRAND
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- if ((opts & OPENSSL_INIT_ENGINE_RDRAND)
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- && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand))
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-@@ -718,6 +713,11 @@ int OPENSSL_init_crypto(uint64_t opts, c
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- && !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic))
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- return 0;
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- # ifndef OPENSSL_NO_STATIC_ENGINE
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-+# ifndef OPENSSL_NO_DEVCRYPTOENG
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-+ if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
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-+ && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto))
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-+ return 0;
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-+# endif
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- # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
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- if ((opts & OPENSSL_INIT_ENGINE_PADLOCK)
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- && !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock))
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---- a/engines/build.info
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-+++ b/engines/build.info
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-@@ -11,6 +11,9 @@ IF[{- !$disabled{"engine"} -}]
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- IF[{- !$disabled{afalgeng} -}]
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- SOURCE[../libcrypto]=e_afalg.c
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- ENDIF
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-+ IF[{- !$disabled{"devcryptoeng"} -}]
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-+ SOURCE[../libcrypto]=e_devcrypto.c
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-+ ENDIF
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- ELSE
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- IF[{- !$disabled{hw} && !$disabled{'hw-padlock'} -}]
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- ENGINES=padlock
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-@@ -30,6 +33,12 @@ IF[{- !$disabled{"engine"} -}]
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- DEPEND[afalg]=../libcrypto
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- INCLUDE[afalg]= ../include
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- ENDIF
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-+ IF[{- !$disabled{"devcryptoeng"} -}]
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-+ ENGINES=devcrypto
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-+ SOURCE[devcrypto]=e_devcrypto.c
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-+ DEPEND[devcrypto]=../libcrypto
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-+ INCLUDE[devcrypto]=../include
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-+ ENDIF
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-
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- ENGINES_NO_INST=ossltest dasync
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- SOURCE[dasync]=e_dasync.c
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---- a/crypto/engine/eng_devcrypto.c
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-+++ /dev/null
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-@@ -1,1277 +0,0 @@
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--/*
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-- * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
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-- *
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-- * Licensed under the OpenSSL license (the "License"). You may not use
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-- * this file except in compliance with the License. You can obtain a copy
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-- * in the file LICENSE in the source distribution or at
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-- * https://www.openssl.org/source/license.html
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-- */
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--
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--#include "e_os.h"
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--#include <string.h>
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--#include <sys/types.h>
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--#include <sys/stat.h>
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--#include <fcntl.h>
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--#include <sys/ioctl.h>
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--#include <unistd.h>
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--#include <assert.h>
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--
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--#include <openssl/conf.h>
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--#include <openssl/evp.h>
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--#include <openssl/err.h>
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--#include <openssl/engine.h>
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--#include <openssl/objects.h>
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--#include <crypto/cryptodev.h>
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--
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--#include "crypto/engine.h"
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--
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--/* #define ENGINE_DEVCRYPTO_DEBUG */
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--
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--#if CRYPTO_ALGORITHM_MIN < CRYPTO_ALGORITHM_MAX
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--# define CHECK_BSD_STYLE_MACROS
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--#endif
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--
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--/*
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-- * ONE global file descriptor for all sessions. This allows operations
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-- * such as digest session data copying (see digest_copy()), but is also
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-- * saner... why re-open /dev/crypto for every session?
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-- */
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--static int cfd;
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--#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */
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--#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */
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--#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */
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--
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--#define DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS DEVCRYPTO_REJECT_SOFTWARE
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--static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS;
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--
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--/*
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-- * cipher/digest status & acceleration definitions
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-- * Make sure the defaults are set to 0
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-- */
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--struct driver_info_st {
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-- enum devcrypto_status_t {
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-- DEVCRYPTO_STATUS_FAILURE = -3, /* unusable for other reason */
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-- DEVCRYPTO_STATUS_NO_CIOCCPHASH = -2, /* hash state copy not supported */
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-- DEVCRYPTO_STATUS_NO_CIOCGSESSION = -1, /* session open failed */
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-- DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */
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-- DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */
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-- } status;
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--
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-- enum devcrypto_accelerated_t {
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-- DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */
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-- DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */
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-- DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */
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-- } accelerated;
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--
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-- char *driver_name;
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--};
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--
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--static int clean_devcrypto_session(struct session_op *sess) {
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-- if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) {
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-- SYSerr(SYS_F_IOCTL, errno);
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-- return 0;
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-- }
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-- memset(sess, 0, sizeof(struct session_op));
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-- return 1;
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--}
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--
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--/******************************************************************************
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-- *
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-- * Ciphers
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-- *
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-- * Because they all do the same basic operation, we have only one set of
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-- * method functions for them all to share, and a mapping table between
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-- * NIDs and cryptodev IDs, with all the necessary size data.
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-- *
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-- *****/
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--
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--struct cipher_ctx {
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-- struct session_op sess;
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-- int op; /* COP_ENCRYPT or COP_DECRYPT */
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-- unsigned long mode; /* EVP_CIPH_*_MODE */
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--
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-- /* to handle ctr mode being a stream cipher */
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-- unsigned char partial[EVP_MAX_BLOCK_LENGTH];
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-- unsigned int blocksize, num;
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--};
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--
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--static const struct cipher_data_st {
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-- int nid;
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-- int blocksize;
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-- int keylen;
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-- int ivlen;
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-- int flags;
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-- int devcryptoid;
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--} cipher_data[] = {
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--#ifndef OPENSSL_NO_DES
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-- { NID_des_cbc, 8, 8, 8, EVP_CIPH_CBC_MODE, CRYPTO_DES_CBC },
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-- { NID_des_ede3_cbc, 8, 24, 8, EVP_CIPH_CBC_MODE, CRYPTO_3DES_CBC },
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--#endif
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--#ifndef OPENSSL_NO_BF
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-- { NID_bf_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_BLF_CBC },
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--#endif
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--#ifndef OPENSSL_NO_CAST
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-- { NID_cast5_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_CAST_CBC },
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--#endif
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-- { NID_aes_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
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-- { NID_aes_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
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-- { NID_aes_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
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--#ifndef OPENSSL_NO_RC4
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-- { NID_rc4, 1, 16, 0, EVP_CIPH_STREAM_CIPHER, CRYPTO_ARC4 },
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--#endif
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--#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_CTR)
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-- { NID_aes_128_ctr, 16, 128 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
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-- { NID_aes_192_ctr, 16, 192 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
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-- { NID_aes_256_ctr, 16, 256 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
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--#endif
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--#if 0 /* Not yet supported */
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-- { NID_aes_128_xts, 16, 128 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS },
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-- { NID_aes_256_xts, 16, 256 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS },
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--#endif
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--#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_ECB)
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-- { NID_aes_128_ecb, 16, 128 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
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-- { NID_aes_192_ecb, 16, 192 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
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-- { NID_aes_256_ecb, 16, 256 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
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--#endif
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--#if 0 /* Not yet supported */
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-- { NID_aes_128_gcm, 16, 128 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
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-- { NID_aes_192_gcm, 16, 192 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
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-- { NID_aes_256_gcm, 16, 256 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
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--#endif
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--#ifndef OPENSSL_NO_CAMELLIA
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-- { NID_camellia_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE,
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-- CRYPTO_CAMELLIA_CBC },
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-- { NID_camellia_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE,
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-- CRYPTO_CAMELLIA_CBC },
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-- { NID_camellia_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE,
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-- CRYPTO_CAMELLIA_CBC },
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--#endif
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--};
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--
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--static size_t find_cipher_data_index(int nid)
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--{
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-- size_t i;
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--
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-- for (i = 0; i < OSSL_NELEM(cipher_data); i++)
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-- if (nid == cipher_data[i].nid)
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-- return i;
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-- return (size_t)-1;
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--}
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--
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--static size_t get_cipher_data_index(int nid)
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--{
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-- size_t i = find_cipher_data_index(nid);
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--
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-- if (i != (size_t)-1)
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-- return i;
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--
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-- /*
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-- * Code further down must make sure that only NIDs in the table above
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-- * are used. If any other NID reaches this function, there's a grave
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-- * coding error further down.
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-- */
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-- assert("Code that never should be reached" == NULL);
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-- return -1;
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--}
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--
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--static const struct cipher_data_st *get_cipher_data(int nid)
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--{
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-- return &cipher_data[get_cipher_data_index(nid)];
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--}
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--
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--/*
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-- * Following are the three necessary functions to map OpenSSL functionality
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-- * with cryptodev.
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-- */
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--
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--static int cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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-- const unsigned char *iv, int enc)
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--{
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-- struct cipher_ctx *cipher_ctx =
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-- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
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-- const struct cipher_data_st *cipher_d =
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-- get_cipher_data(EVP_CIPHER_CTX_nid(ctx));
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--
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-- /* cleanup a previous session */
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-- if (cipher_ctx->sess.ses != 0 &&
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-- clean_devcrypto_session(&cipher_ctx->sess) == 0)
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-- return 0;
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--
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-- cipher_ctx->sess.cipher = cipher_d->devcryptoid;
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-- cipher_ctx->sess.keylen = cipher_d->keylen;
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-- cipher_ctx->sess.key = (void *)key;
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-- cipher_ctx->op = enc ? COP_ENCRYPT : COP_DECRYPT;
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-- cipher_ctx->mode = cipher_d->flags & EVP_CIPH_MODE;
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-- cipher_ctx->blocksize = cipher_d->blocksize;
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-- if (ioctl(cfd, CIOCGSESSION, &cipher_ctx->sess) < 0) {
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-- SYSerr(SYS_F_IOCTL, errno);
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-- return 0;
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-- }
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--
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-- return 1;
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--}
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--
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--static int cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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-- const unsigned char *in, size_t inl)
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--{
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-- struct cipher_ctx *cipher_ctx =
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-- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
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-- struct crypt_op cryp;
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-- unsigned char *iv = EVP_CIPHER_CTX_iv_noconst(ctx);
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--#if !defined(COP_FLAG_WRITE_IV)
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-- unsigned char saved_iv[EVP_MAX_IV_LENGTH];
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-- const unsigned char *ivptr;
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-- size_t nblocks, ivlen;
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--#endif
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--
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-- memset(&cryp, 0, sizeof(cryp));
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-- cryp.ses = cipher_ctx->sess.ses;
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-- cryp.len = inl;
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-- cryp.src = (void *)in;
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-- cryp.dst = (void *)out;
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-- cryp.iv = (void *)iv;
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-- cryp.op = cipher_ctx->op;
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--#if !defined(COP_FLAG_WRITE_IV)
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-- cryp.flags = 0;
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--
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-- ivlen = EVP_CIPHER_CTX_iv_length(ctx);
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-- if (ivlen > 0)
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-- switch (cipher_ctx->mode) {
|
|
|
-- case EVP_CIPH_CBC_MODE:
|
|
|
-- assert(inl >= ivlen);
|
|
|
-- if (!EVP_CIPHER_CTX_encrypting(ctx)) {
|
|
|
-- ivptr = in + inl - ivlen;
|
|
|
-- memcpy(saved_iv, ivptr, ivlen);
|
|
|
-- }
|
|
|
-- break;
|
|
|
--
|
|
|
-- case EVP_CIPH_CTR_MODE:
|
|
|
-- break;
|
|
|
--
|
|
|
-- default: /* should not happen */
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
--#else
|
|
|
-- cryp.flags = COP_FLAG_WRITE_IV;
|
|
|
--#endif
|
|
|
--
|
|
|
-- if (ioctl(cfd, CIOCCRYPT, &cryp) < 0) {
|
|
|
-- SYSerr(SYS_F_IOCTL, errno);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
--
|
|
|
--#if !defined(COP_FLAG_WRITE_IV)
|
|
|
-- if (ivlen > 0)
|
|
|
-- switch (cipher_ctx->mode) {
|
|
|
-- case EVP_CIPH_CBC_MODE:
|
|
|
-- assert(inl >= ivlen);
|
|
|
-- if (EVP_CIPHER_CTX_encrypting(ctx))
|
|
|
-- ivptr = out + inl - ivlen;
|
|
|
-- else
|
|
|
-- ivptr = saved_iv;
|
|
|
--
|
|
|
-- memcpy(iv, ivptr, ivlen);
|
|
|
-- break;
|
|
|
--
|
|
|
-- case EVP_CIPH_CTR_MODE:
|
|
|
-- nblocks = (inl + cipher_ctx->blocksize - 1)
|
|
|
-- / cipher_ctx->blocksize;
|
|
|
-- do {
|
|
|
-- ivlen--;
|
|
|
-- nblocks += iv[ivlen];
|
|
|
-- iv[ivlen] = (uint8_t) nblocks;
|
|
|
-- nblocks >>= 8;
|
|
|
-- } while (ivlen);
|
|
|
-- break;
|
|
|
--
|
|
|
-- default: /* should not happen */
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
--#endif
|
|
|
--
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int ctr_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
|
-- const unsigned char *in, size_t inl)
|
|
|
--{
|
|
|
-- struct cipher_ctx *cipher_ctx =
|
|
|
-- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-- size_t nblocks, len;
|
|
|
--
|
|
|
-- /* initial partial block */
|
|
|
-- while (cipher_ctx->num && inl) {
|
|
|
-- (*out++) = *(in++) ^ cipher_ctx->partial[cipher_ctx->num];
|
|
|
-- --inl;
|
|
|
-- cipher_ctx->num = (cipher_ctx->num + 1) % cipher_ctx->blocksize;
|
|
|
-- }
|
|
|
--
|
|
|
-- /* full blocks */
|
|
|
-- if (inl > (unsigned int) cipher_ctx->blocksize) {
|
|
|
-- nblocks = inl/cipher_ctx->blocksize;
|
|
|
-- len = nblocks * cipher_ctx->blocksize;
|
|
|
-- if (cipher_do_cipher(ctx, out, in, len) < 1)
|
|
|
-- return 0;
|
|
|
-- inl -= len;
|
|
|
-- out += len;
|
|
|
-- in += len;
|
|
|
-- }
|
|
|
--
|
|
|
-- /* final partial block */
|
|
|
-- if (inl) {
|
|
|
-- memset(cipher_ctx->partial, 0, cipher_ctx->blocksize);
|
|
|
-- if (cipher_do_cipher(ctx, cipher_ctx->partial, cipher_ctx->partial,
|
|
|
-- cipher_ctx->blocksize) < 1)
|
|
|
-- return 0;
|
|
|
-- while (inl--) {
|
|
|
-- out[cipher_ctx->num] = in[cipher_ctx->num]
|
|
|
-- ^ cipher_ctx->partial[cipher_ctx->num];
|
|
|
-- cipher_ctx->num++;
|
|
|
-- }
|
|
|
-- }
|
|
|
--
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2)
|
|
|
--{
|
|
|
-- struct cipher_ctx *cipher_ctx =
|
|
|
-- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-- EVP_CIPHER_CTX *to_ctx = (EVP_CIPHER_CTX *)p2;
|
|
|
-- struct cipher_ctx *to_cipher_ctx;
|
|
|
--
|
|
|
-- switch (type) {
|
|
|
-- case EVP_CTRL_COPY:
|
|
|
-- if (cipher_ctx == NULL)
|
|
|
-- return 1;
|
|
|
-- /* when copying the context, a new session needs to be initialized */
|
|
|
-- to_cipher_ctx =
|
|
|
-- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(to_ctx);
|
|
|
-- memset(&to_cipher_ctx->sess, 0, sizeof(to_cipher_ctx->sess));
|
|
|
-- return cipher_init(to_ctx, cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx),
|
|
|
-- (cipher_ctx->op == COP_ENCRYPT));
|
|
|
--
|
|
|
-- case EVP_CTRL_INIT:
|
|
|
-- memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess));
|
|
|
-- return 1;
|
|
|
--
|
|
|
-- default:
|
|
|
-- break;
|
|
|
-- }
|
|
|
--
|
|
|
-- return -1;
|
|
|
--}
|
|
|
--
|
|
|
--static int cipher_cleanup(EVP_CIPHER_CTX *ctx)
|
|
|
--{
|
|
|
-- struct cipher_ctx *cipher_ctx =
|
|
|
-- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
--
|
|
|
-- return clean_devcrypto_session(&cipher_ctx->sess);
|
|
|
--}
|
|
|
--
|
|
|
--/*
|
|
|
-- * Keep tables of known nids, associated methods, selected ciphers, and driver
|
|
|
-- * info.
|
|
|
-- * Note that known_cipher_nids[] isn't necessarily indexed the same way as
|
|
|
-- * cipher_data[] above, which the other tables are.
|
|
|
-- */
|
|
|
--static int known_cipher_nids[OSSL_NELEM(cipher_data)];
|
|
|
--static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */
|
|
|
--static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, };
|
|
|
--static int selected_ciphers[OSSL_NELEM(cipher_data)];
|
|
|
--static struct driver_info_st cipher_driver_info[OSSL_NELEM(cipher_data)];
|
|
|
--
|
|
|
--
|
|
|
--static int devcrypto_test_cipher(size_t cipher_data_index)
|
|
|
--{
|
|
|
-- return (cipher_driver_info[cipher_data_index].status == DEVCRYPTO_STATUS_USABLE
|
|
|
-- && selected_ciphers[cipher_data_index] == 1
|
|
|
-- && (cipher_driver_info[cipher_data_index].accelerated
|
|
|
-- == DEVCRYPTO_ACCELERATED
|
|
|
-- || use_softdrivers == DEVCRYPTO_USE_SOFTWARE
|
|
|
-- || (cipher_driver_info[cipher_data_index].accelerated
|
|
|
-- != DEVCRYPTO_NOT_ACCELERATED
|
|
|
-- && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE)));
|
|
|
--}
|
|
|
--
|
|
|
--static void prepare_cipher_methods(void)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
-- struct session_op sess;
|
|
|
-- unsigned long cipher_mode;
|
|
|
--#ifdef CIOCGSESSINFO
|
|
|
-- struct session_info_op siop;
|
|
|
--#endif
|
|
|
--
|
|
|
-- memset(&cipher_driver_info, 0, sizeof(cipher_driver_info));
|
|
|
--
|
|
|
-- memset(&sess, 0, sizeof(sess));
|
|
|
-- sess.key = (void *)"01234567890123456789012345678901234567890123456789";
|
|
|
--
|
|
|
-- for (i = 0, known_cipher_nids_amount = 0;
|
|
|
-- i < OSSL_NELEM(cipher_data); i++) {
|
|
|
--
|
|
|
-- selected_ciphers[i] = 1;
|
|
|
-- /*
|
|
|
-- * Check that the cipher is usable
|
|
|
-- */
|
|
|
-- sess.cipher = cipher_data[i].devcryptoid;
|
|
|
-- sess.keylen = cipher_data[i].keylen;
|
|
|
-- if (ioctl(cfd, CIOCGSESSION, &sess) < 0) {
|
|
|
-- cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
|
|
|
-- continue;
|
|
|
-- }
|
|
|
--
|
|
|
-- cipher_mode = cipher_data[i].flags & EVP_CIPH_MODE;
|
|
|
--
|
|
|
-- if ((known_cipher_methods[i] =
|
|
|
-- EVP_CIPHER_meth_new(cipher_data[i].nid,
|
|
|
-- cipher_mode == EVP_CIPH_CTR_MODE ? 1 :
|
|
|
-- cipher_data[i].blocksize,
|
|
|
-- cipher_data[i].keylen)) == NULL
|
|
|
-- || !EVP_CIPHER_meth_set_iv_length(known_cipher_methods[i],
|
|
|
-- cipher_data[i].ivlen)
|
|
|
-- || !EVP_CIPHER_meth_set_flags(known_cipher_methods[i],
|
|
|
-- cipher_data[i].flags
|
|
|
-- | EVP_CIPH_CUSTOM_COPY
|
|
|
-- | EVP_CIPH_CTRL_INIT
|
|
|
-- | EVP_CIPH_FLAG_DEFAULT_ASN1)
|
|
|
-- || !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init)
|
|
|
-- || !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i],
|
|
|
-- cipher_mode == EVP_CIPH_CTR_MODE ?
|
|
|
-- ctr_do_cipher :
|
|
|
-- cipher_do_cipher)
|
|
|
-- || !EVP_CIPHER_meth_set_ctrl(known_cipher_methods[i], cipher_ctrl)
|
|
|
-- || !EVP_CIPHER_meth_set_cleanup(known_cipher_methods[i],
|
|
|
-- cipher_cleanup)
|
|
|
-- || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i],
|
|
|
-- sizeof(struct cipher_ctx))) {
|
|
|
-- cipher_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
|
|
|
-- EVP_CIPHER_meth_free(known_cipher_methods[i]);
|
|
|
-- known_cipher_methods[i] = NULL;
|
|
|
-- } else {
|
|
|
-- cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE;
|
|
|
--#ifdef CIOCGSESSINFO
|
|
|
-- siop.ses = sess.ses;
|
|
|
-- if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) {
|
|
|
-- cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN;
|
|
|
-- } else {
|
|
|
-- cipher_driver_info[i].driver_name =
|
|
|
-- OPENSSL_strndup(siop.cipher_info.cra_driver_name,
|
|
|
-- CRYPTODEV_MAX_ALG_NAME);
|
|
|
-- if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY))
|
|
|
-- cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED;
|
|
|
-- else
|
|
|
-- cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED;
|
|
|
-- }
|
|
|
--#endif /* CIOCGSESSINFO */
|
|
|
-- }
|
|
|
-- ioctl(cfd, CIOCFSESSION, &sess.ses);
|
|
|
-- if (devcrypto_test_cipher(i)) {
|
|
|
-- known_cipher_nids[known_cipher_nids_amount++] =
|
|
|
-- cipher_data[i].nid;
|
|
|
-- }
|
|
|
-- }
|
|
|
--}
|
|
|
--
|
|
|
--static void rebuild_known_cipher_nids(ENGINE *e)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0, known_cipher_nids_amount = 0; i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-- if (devcrypto_test_cipher(i))
|
|
|
-- known_cipher_nids[known_cipher_nids_amount++] = cipher_data[i].nid;
|
|
|
-- }
|
|
|
-- ENGINE_unregister_ciphers(e);
|
|
|
-- ENGINE_register_ciphers(e);
|
|
|
--}
|
|
|
--
|
|
|
--static const EVP_CIPHER *get_cipher_method(int nid)
|
|
|
--{
|
|
|
-- size_t i = get_cipher_data_index(nid);
|
|
|
--
|
|
|
-- if (i == (size_t)-1)
|
|
|
-- return NULL;
|
|
|
-- return known_cipher_methods[i];
|
|
|
--}
|
|
|
--
|
|
|
--static int get_cipher_nids(const int **nids)
|
|
|
--{
|
|
|
-- *nids = known_cipher_nids;
|
|
|
-- return known_cipher_nids_amount;
|
|
|
--}
|
|
|
--
|
|
|
--static void destroy_cipher_method(int nid)
|
|
|
--{
|
|
|
-- size_t i = get_cipher_data_index(nid);
|
|
|
--
|
|
|
-- EVP_CIPHER_meth_free(known_cipher_methods[i]);
|
|
|
-- known_cipher_methods[i] = NULL;
|
|
|
--}
|
|
|
--
|
|
|
--static void destroy_all_cipher_methods(void)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0; i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-- destroy_cipher_method(cipher_data[i].nid);
|
|
|
-- OPENSSL_free(cipher_driver_info[i].driver_name);
|
|
|
-- cipher_driver_info[i].driver_name = NULL;
|
|
|
-- }
|
|
|
--}
|
|
|
--
|
|
|
--static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
|
|
|
-- const int **nids, int nid)
|
|
|
--{
|
|
|
-- if (cipher == NULL)
|
|
|
-- return get_cipher_nids(nids);
|
|
|
--
|
|
|
-- *cipher = get_cipher_method(nid);
|
|
|
--
|
|
|
-- return *cipher != NULL;
|
|
|
--}
|
|
|
--
|
|
|
--static void devcrypto_select_all_ciphers(int *cipher_list)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0; i < OSSL_NELEM(cipher_data); i++)
|
|
|
-- cipher_list[i] = 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int cryptodev_select_cipher_cb(const char *str, int len, void *usr)
|
|
|
--{
|
|
|
-- int *cipher_list = (int *)usr;
|
|
|
-- char *name;
|
|
|
-- const EVP_CIPHER *EVP;
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- if (len == 0)
|
|
|
-- return 1;
|
|
|
-- if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
|
|
|
-- return 0;
|
|
|
-- EVP = EVP_get_cipherbyname(name);
|
|
|
-- if (EVP == NULL)
|
|
|
-- fprintf(stderr, "devcrypto: unknown cipher %s\n", name);
|
|
|
-- else if ((i = find_cipher_data_index(EVP_CIPHER_nid(EVP))) != (size_t)-1)
|
|
|
-- cipher_list[i] = 1;
|
|
|
-- else
|
|
|
-- fprintf(stderr, "devcrypto: cipher %s not available\n", name);
|
|
|
-- OPENSSL_free(name);
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static void dump_cipher_info(void)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
-- const char *name;
|
|
|
--
|
|
|
-- fprintf (stderr, "Information about ciphers supported by the /dev/crypto"
|
|
|
-- " engine:\n");
|
|
|
--#ifndef CIOCGSESSINFO
|
|
|
-- fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n");
|
|
|
--#endif
|
|
|
-- for (i = 0; i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-- name = OBJ_nid2sn(cipher_data[i].nid);
|
|
|
-- fprintf (stderr, "Cipher %s, NID=%d, /dev/crypto info: id=%d, ",
|
|
|
-- name ? name : "unknown", cipher_data[i].nid,
|
|
|
-- cipher_data[i].devcryptoid);
|
|
|
-- if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION ) {
|
|
|
-- fprintf (stderr, "CIOCGSESSION (session open call) failed\n");
|
|
|
-- continue;
|
|
|
-- }
|
|
|
-- fprintf (stderr, "driver=%s ", cipher_driver_info[i].driver_name ?
|
|
|
-- cipher_driver_info[i].driver_name : "unknown");
|
|
|
-- if (cipher_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED)
|
|
|
-- fprintf(stderr, "(hw accelerated)");
|
|
|
-- else if (cipher_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED)
|
|
|
-- fprintf(stderr, "(software)");
|
|
|
-- else
|
|
|
-- fprintf(stderr, "(acceleration status unknown)");
|
|
|
-- if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE)
|
|
|
-- fprintf (stderr, ". Cipher setup failed");
|
|
|
-- fprintf(stderr, "\n");
|
|
|
-- }
|
|
|
-- fprintf(stderr, "\n");
|
|
|
--}
|
|
|
--
|
|
|
--/*
|
|
|
-- * We only support digests if the cryptodev implementation supports multiple
|
|
|
-- * data updates and session copying. Otherwise, we would be forced to maintain
|
|
|
-- * a cache, which is perilous if there's a lot of data coming in (if someone
|
|
|
-- * wants to checksum an OpenSSL tarball, for example).
|
|
|
-- */
|
|
|
--#if defined(CIOCCPHASH) && defined(COP_FLAG_UPDATE) && defined(COP_FLAG_FINAL)
|
|
|
--#define IMPLEMENT_DIGEST
|
|
|
--
|
|
|
--/******************************************************************************
|
|
|
-- *
|
|
|
-- * Digests
|
|
|
-- *
|
|
|
-- * Because they all do the same basic operation, we have only one set of
|
|
|
-- * method functions for them all to share, and a mapping table between
|
|
|
-- * NIDs and cryptodev IDs, with all the necessary size data.
|
|
|
-- *
|
|
|
-- *****/
|
|
|
--
|
|
|
--struct digest_ctx {
|
|
|
-- struct session_op sess;
|
|
|
-- /* This signals that the init function was called, not that it succeeded. */
|
|
|
-- int init_called;
|
|
|
-- unsigned char digest_res[HASH_MAX_LEN];
|
|
|
--};
|
|
|
--
|
|
|
--static const struct digest_data_st {
|
|
|
-- int nid;
|
|
|
-- int blocksize;
|
|
|
-- int digestlen;
|
|
|
-- int devcryptoid;
|
|
|
--} digest_data[] = {
|
|
|
--#ifndef OPENSSL_NO_MD5
|
|
|
-- { NID_md5, /* MD5_CBLOCK */ 64, 16, CRYPTO_MD5 },
|
|
|
--#endif
|
|
|
-- { NID_sha1, SHA_CBLOCK, 20, CRYPTO_SHA1 },
|
|
|
--#ifndef OPENSSL_NO_RMD160
|
|
|
--# if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_RIPEMD160)
|
|
|
-- { NID_ripemd160, /* RIPEMD160_CBLOCK */ 64, 20, CRYPTO_RIPEMD160 },
|
|
|
--# endif
|
|
|
--#endif
|
|
|
--#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_224)
|
|
|
-- { NID_sha224, SHA256_CBLOCK, 224 / 8, CRYPTO_SHA2_224 },
|
|
|
--#endif
|
|
|
--#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_256)
|
|
|
-- { NID_sha256, SHA256_CBLOCK, 256 / 8, CRYPTO_SHA2_256 },
|
|
|
--#endif
|
|
|
--#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_384)
|
|
|
-- { NID_sha384, SHA512_CBLOCK, 384 / 8, CRYPTO_SHA2_384 },
|
|
|
--#endif
|
|
|
--#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_512)
|
|
|
-- { NID_sha512, SHA512_CBLOCK, 512 / 8, CRYPTO_SHA2_512 },
|
|
|
--#endif
|
|
|
--};
|
|
|
--
|
|
|
--static size_t find_digest_data_index(int nid)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0; i < OSSL_NELEM(digest_data); i++)
|
|
|
-- if (nid == digest_data[i].nid)
|
|
|
-- return i;
|
|
|
-- return (size_t)-1;
|
|
|
--}
|
|
|
--
|
|
|
--static size_t get_digest_data_index(int nid)
|
|
|
--{
|
|
|
-- size_t i = find_digest_data_index(nid);
|
|
|
--
|
|
|
-- if (i != (size_t)-1)
|
|
|
-- return i;
|
|
|
--
|
|
|
-- /*
|
|
|
-- * Code further down must make sure that only NIDs in the table above
|
|
|
-- * are used. If any other NID reaches this function, there's a grave
|
|
|
-- * coding error further down.
|
|
|
-- */
|
|
|
-- assert("Code that never should be reached" == NULL);
|
|
|
-- return -1;
|
|
|
--}
|
|
|
--
|
|
|
--static const struct digest_data_st *get_digest_data(int nid)
|
|
|
--{
|
|
|
-- return &digest_data[get_digest_data_index(nid)];
|
|
|
--}
|
|
|
--
|
|
|
--/*
|
|
|
-- * Following are the five necessary functions to map OpenSSL functionality
|
|
|
-- * with cryptodev: init, update, final, cleanup, and copy.
|
|
|
-- */
|
|
|
--
|
|
|
--static int digest_init(EVP_MD_CTX *ctx)
|
|
|
--{
|
|
|
-- struct digest_ctx *digest_ctx =
|
|
|
-- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
-- const struct digest_data_st *digest_d =
|
|
|
-- get_digest_data(EVP_MD_CTX_type(ctx));
|
|
|
--
|
|
|
-- digest_ctx->init_called = 1;
|
|
|
--
|
|
|
-- memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess));
|
|
|
-- digest_ctx->sess.mac = digest_d->devcryptoid;
|
|
|
-- if (ioctl(cfd, CIOCGSESSION, &digest_ctx->sess) < 0) {
|
|
|
-- SYSerr(SYS_F_IOCTL, errno);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
--
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int digest_op(struct digest_ctx *ctx, const void *src, size_t srclen,
|
|
|
-- void *res, unsigned int flags)
|
|
|
--{
|
|
|
-- struct crypt_op cryp;
|
|
|
--
|
|
|
-- memset(&cryp, 0, sizeof(cryp));
|
|
|
-- cryp.ses = ctx->sess.ses;
|
|
|
-- cryp.len = srclen;
|
|
|
-- cryp.src = (void *)src;
|
|
|
-- cryp.dst = NULL;
|
|
|
-- cryp.mac = res;
|
|
|
-- cryp.flags = flags;
|
|
|
-- return ioctl(cfd, CIOCCRYPT, &cryp);
|
|
|
--}
|
|
|
--
|
|
|
--static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
|
|
|
--{
|
|
|
-- struct digest_ctx *digest_ctx =
|
|
|
-- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
--
|
|
|
-- if (count == 0)
|
|
|
-- return 1;
|
|
|
--
|
|
|
-- if (digest_ctx == NULL)
|
|
|
-- return 0;
|
|
|
--
|
|
|
-- if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
|
|
|
-- if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0)
|
|
|
-- return 1;
|
|
|
-- } else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) {
|
|
|
-- return 1;
|
|
|
-- }
|
|
|
--
|
|
|
-- SYSerr(SYS_F_IOCTL, errno);
|
|
|
-- return 0;
|
|
|
--}
|
|
|
--
|
|
|
--static int digest_final(EVP_MD_CTX *ctx, unsigned char *md)
|
|
|
--{
|
|
|
-- struct digest_ctx *digest_ctx =
|
|
|
-- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
--
|
|
|
-- if (md == NULL || digest_ctx == NULL)
|
|
|
-- return 0;
|
|
|
--
|
|
|
-- if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
|
|
|
-- memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_size(ctx));
|
|
|
-- } else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {
|
|
|
-- SYSerr(SYS_F_IOCTL, errno);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
--
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
|
|
|
--{
|
|
|
-- struct digest_ctx *digest_from =
|
|
|
-- (struct digest_ctx *)EVP_MD_CTX_md_data(from);
|
|
|
-- struct digest_ctx *digest_to =
|
|
|
-- (struct digest_ctx *)EVP_MD_CTX_md_data(to);
|
|
|
-- struct cphash_op cphash;
|
|
|
--
|
|
|
-- if (digest_from == NULL || digest_from->init_called != 1)
|
|
|
-- return 1;
|
|
|
--
|
|
|
-- if (!digest_init(to)) {
|
|
|
-- SYSerr(SYS_F_IOCTL, errno);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
--
|
|
|
-- cphash.src_ses = digest_from->sess.ses;
|
|
|
-- cphash.dst_ses = digest_to->sess.ses;
|
|
|
-- if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) {
|
|
|
-- SYSerr(SYS_F_IOCTL, errno);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int digest_cleanup(EVP_MD_CTX *ctx)
|
|
|
--{
|
|
|
-- struct digest_ctx *digest_ctx =
|
|
|
-- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
--
|
|
|
-- if (digest_ctx == NULL)
|
|
|
-- return 1;
|
|
|
--
|
|
|
-- return clean_devcrypto_session(&digest_ctx->sess);
|
|
|
--}
|
|
|
--
|
|
|
--/*
|
|
|
-- * Keep tables of known nids, associated methods, selected digests, and
|
|
|
-- * driver info.
|
|
|
-- * Note that known_digest_nids[] isn't necessarily indexed the same way as
|
|
|
-- * digest_data[] above, which the other tables are.
|
|
|
-- */
|
|
|
--static int known_digest_nids[OSSL_NELEM(digest_data)];
|
|
|
--static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */
|
|
|
--static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, };
|
|
|
--static int selected_digests[OSSL_NELEM(digest_data)];
|
|
|
--static struct driver_info_st digest_driver_info[OSSL_NELEM(digest_data)];
|
|
|
--
|
|
|
--static int devcrypto_test_digest(size_t digest_data_index)
|
|
|
--{
|
|
|
-- return (digest_driver_info[digest_data_index].status == DEVCRYPTO_STATUS_USABLE
|
|
|
-- && selected_digests[digest_data_index] == 1
|
|
|
-- && (digest_driver_info[digest_data_index].accelerated
|
|
|
-- == DEVCRYPTO_ACCELERATED
|
|
|
-- || use_softdrivers == DEVCRYPTO_USE_SOFTWARE
|
|
|
-- || (digest_driver_info[digest_data_index].accelerated
|
|
|
-- != DEVCRYPTO_NOT_ACCELERATED
|
|
|
-- && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE)));
|
|
|
--}
|
|
|
--
|
|
|
--static void rebuild_known_digest_nids(ENGINE *e)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); i++) {
|
|
|
-- if (devcrypto_test_digest(i))
|
|
|
-- known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid;
|
|
|
-- }
|
|
|
-- ENGINE_unregister_digests(e);
|
|
|
-- ENGINE_register_digests(e);
|
|
|
--}
|
|
|
--
|
|
|
--static void prepare_digest_methods(void)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
-- struct session_op sess1, sess2;
|
|
|
--#ifdef CIOCGSESSINFO
|
|
|
-- struct session_info_op siop;
|
|
|
--#endif
|
|
|
-- struct cphash_op cphash;
|
|
|
--
|
|
|
-- memset(&digest_driver_info, 0, sizeof(digest_driver_info));
|
|
|
--
|
|
|
-- memset(&sess1, 0, sizeof(sess1));
|
|
|
-- memset(&sess2, 0, sizeof(sess2));
|
|
|
--
|
|
|
-- for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data);
|
|
|
-- i++) {
|
|
|
--
|
|
|
-- selected_digests[i] = 1;
|
|
|
--
|
|
|
-- /*
|
|
|
-- * Check that the digest is usable
|
|
|
-- */
|
|
|
-- sess1.mac = digest_data[i].devcryptoid;
|
|
|
-- sess2.ses = 0;
|
|
|
-- if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) {
|
|
|
-- digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
|
|
|
-- goto finish;
|
|
|
-- }
|
|
|
--
|
|
|
--#ifdef CIOCGSESSINFO
|
|
|
-- /* gather hardware acceleration info from the driver */
|
|
|
-- siop.ses = sess1.ses;
|
|
|
-- if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) {
|
|
|
-- digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN;
|
|
|
-- } else {
|
|
|
-- digest_driver_info[i].driver_name =
|
|
|
-- OPENSSL_strndup(siop.hash_info.cra_driver_name,
|
|
|
-- CRYPTODEV_MAX_ALG_NAME);
|
|
|
-- if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)
|
|
|
-- digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED;
|
|
|
-- else
|
|
|
-- digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED;
|
|
|
-- }
|
|
|
--#endif
|
|
|
--
|
|
|
-- /* digest must be capable of hash state copy */
|
|
|
-- sess2.mac = sess1.mac;
|
|
|
-- if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) {
|
|
|
-- digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
|
|
|
-- goto finish;
|
|
|
-- }
|
|
|
-- cphash.src_ses = sess1.ses;
|
|
|
-- cphash.dst_ses = sess2.ses;
|
|
|
-- if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) {
|
|
|
-- digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCCPHASH;
|
|
|
-- goto finish;
|
|
|
-- }
|
|
|
-- if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid,
|
|
|
-- NID_undef)) == NULL
|
|
|
-- || !EVP_MD_meth_set_input_blocksize(known_digest_methods[i],
|
|
|
-- digest_data[i].blocksize)
|
|
|
-- || !EVP_MD_meth_set_result_size(known_digest_methods[i],
|
|
|
-- digest_data[i].digestlen)
|
|
|
-- || !EVP_MD_meth_set_init(known_digest_methods[i], digest_init)
|
|
|
-- || !EVP_MD_meth_set_update(known_digest_methods[i], digest_update)
|
|
|
-- || !EVP_MD_meth_set_final(known_digest_methods[i], digest_final)
|
|
|
-- || !EVP_MD_meth_set_copy(known_digest_methods[i], digest_copy)
|
|
|
-- || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup)
|
|
|
-- || !EVP_MD_meth_set_app_datasize(known_digest_methods[i],
|
|
|
-- sizeof(struct digest_ctx))) {
|
|
|
-- digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
|
|
|
-- EVP_MD_meth_free(known_digest_methods[i]);
|
|
|
-- known_digest_methods[i] = NULL;
|
|
|
-- goto finish;
|
|
|
-- }
|
|
|
-- digest_driver_info[i].status = DEVCRYPTO_STATUS_USABLE;
|
|
|
--finish:
|
|
|
-- ioctl(cfd, CIOCFSESSION, &sess1.ses);
|
|
|
-- if (sess2.ses != 0)
|
|
|
-- ioctl(cfd, CIOCFSESSION, &sess2.ses);
|
|
|
-- if (devcrypto_test_digest(i))
|
|
|
-- known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid;
|
|
|
-- }
|
|
|
--}
|
|
|
--
|
|
|
--static const EVP_MD *get_digest_method(int nid)
|
|
|
--{
|
|
|
-- size_t i = get_digest_data_index(nid);
|
|
|
--
|
|
|
-- if (i == (size_t)-1)
|
|
|
-- return NULL;
|
|
|
-- return known_digest_methods[i];
|
|
|
--}
|
|
|
--
|
|
|
--static int get_digest_nids(const int **nids)
|
|
|
--{
|
|
|
-- *nids = known_digest_nids;
|
|
|
-- return known_digest_nids_amount;
|
|
|
--}
|
|
|
--
|
|
|
--static void destroy_digest_method(int nid)
|
|
|
--{
|
|
|
-- size_t i = get_digest_data_index(nid);
|
|
|
--
|
|
|
-- EVP_MD_meth_free(known_digest_methods[i]);
|
|
|
-- known_digest_methods[i] = NULL;
|
|
|
--}
|
|
|
--
|
|
|
--static void destroy_all_digest_methods(void)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0; i < OSSL_NELEM(digest_data); i++) {
|
|
|
-- destroy_digest_method(digest_data[i].nid);
|
|
|
-- OPENSSL_free(digest_driver_info[i].driver_name);
|
|
|
-- digest_driver_info[i].driver_name = NULL;
|
|
|
-- }
|
|
|
--}
|
|
|
--
|
|
|
--static int devcrypto_digests(ENGINE *e, const EVP_MD **digest,
|
|
|
-- const int **nids, int nid)
|
|
|
--{
|
|
|
-- if (digest == NULL)
|
|
|
-- return get_digest_nids(nids);
|
|
|
--
|
|
|
-- *digest = get_digest_method(nid);
|
|
|
--
|
|
|
-- return *digest != NULL;
|
|
|
--}
|
|
|
--
|
|
|
--static void devcrypto_select_all_digests(int *digest_list)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- for (i = 0; i < OSSL_NELEM(digest_data); i++)
|
|
|
-- digest_list[i] = 1;
|
|
|
--}
|
|
|
--
|
|
|
--static int cryptodev_select_digest_cb(const char *str, int len, void *usr)
|
|
|
--{
|
|
|
-- int *digest_list = (int *)usr;
|
|
|
-- char *name;
|
|
|
-- const EVP_MD *EVP;
|
|
|
-- size_t i;
|
|
|
--
|
|
|
-- if (len == 0)
|
|
|
-- return 1;
|
|
|
-- if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
|
|
|
-- return 0;
|
|
|
-- EVP = EVP_get_digestbyname(name);
|
|
|
-- if (EVP == NULL)
|
|
|
-- fprintf(stderr, "devcrypto: unknown digest %s\n", name);
|
|
|
-- else if ((i = find_digest_data_index(EVP_MD_type(EVP))) != (size_t)-1)
|
|
|
-- digest_list[i] = 1;
|
|
|
-- else
|
|
|
-- fprintf(stderr, "devcrypto: digest %s not available\n", name);
|
|
|
-- OPENSSL_free(name);
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--
|
|
|
--static void dump_digest_info(void)
|
|
|
--{
|
|
|
-- size_t i;
|
|
|
-- const char *name;
|
|
|
--
|
|
|
-- fprintf (stderr, "Information about digests supported by the /dev/crypto"
|
|
|
-- " engine:\n");
|
|
|
--#ifndef CIOCGSESSINFO
|
|
|
-- fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n");
|
|
|
--#endif
|
|
|
--
|
|
|
-- for (i = 0; i < OSSL_NELEM(digest_data); i++) {
|
|
|
-- name = OBJ_nid2sn(digest_data[i].nid);
|
|
|
-- fprintf (stderr, "Digest %s, NID=%d, /dev/crypto info: id=%d, driver=%s",
|
|
|
-- name ? name : "unknown", digest_data[i].nid,
|
|
|
-- digest_data[i].devcryptoid,
|
|
|
-- digest_driver_info[i].driver_name ? digest_driver_info[i].driver_name : "unknown");
|
|
|
-- if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) {
|
|
|
-- fprintf (stderr, ". CIOCGSESSION (session open) failed\n");
|
|
|
-- continue;
|
|
|
-- }
|
|
|
-- if (digest_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED)
|
|
|
-- fprintf(stderr, " (hw accelerated)");
|
|
|
-- else if (digest_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED)
|
|
|
-- fprintf(stderr, " (software)");
|
|
|
-- else
|
|
|
-- fprintf(stderr, " (acceleration status unknown)");
|
|
|
-- if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE)
|
|
|
-- fprintf (stderr, ". Cipher setup failed\n");
|
|
|
-- else if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCCPHASH)
|
|
|
-- fprintf(stderr, ", CIOCCPHASH failed\n");
|
|
|
-- else
|
|
|
-- fprintf(stderr, ", CIOCCPHASH capable\n");
|
|
|
-- }
|
|
|
-- fprintf(stderr, "\n");
|
|
|
--}
|
|
|
--
|
|
|
--#endif
|
|
|
--
|
|
|
--/******************************************************************************
|
|
|
-- *
|
|
|
-- * CONTROL COMMANDS
|
|
|
-- *
|
|
|
-- *****/
|
|
|
--
|
|
|
--#define DEVCRYPTO_CMD_USE_SOFTDRIVERS ENGINE_CMD_BASE
|
|
|
--#define DEVCRYPTO_CMD_CIPHERS (ENGINE_CMD_BASE + 1)
|
|
|
--#define DEVCRYPTO_CMD_DIGESTS (ENGINE_CMD_BASE + 2)
|
|
|
--#define DEVCRYPTO_CMD_DUMP_INFO (ENGINE_CMD_BASE + 3)
|
|
|
--
|
|
|
--/* Helper macros for CPP string composition */
|
|
|
--#ifndef OPENSSL_MSTR
|
|
|
--# define OPENSSL_MSTR_HELPER(x) #x
|
|
|
--# define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x)
|
|
|
--#endif
|
|
|
--
|
|
|
--static const ENGINE_CMD_DEFN devcrypto_cmds[] = {
|
|
|
--#ifdef CIOCGSESSINFO
|
|
|
-- {DEVCRYPTO_CMD_USE_SOFTDRIVERS,
|
|
|
-- "USE_SOFTDRIVERS",
|
|
|
-- "specifies whether to use software (not accelerated) drivers ("
|
|
|
-- OPENSSL_MSTR(DEVCRYPTO_REQUIRE_ACCELERATED) "=use only accelerated drivers, "
|
|
|
-- OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, "
|
|
|
-- OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE)
|
|
|
-- "=use if acceleration can't be determined) [default="
|
|
|
-- OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS) "]",
|
|
|
-- ENGINE_CMD_FLAG_NUMERIC},
|
|
|
--#endif
|
|
|
--
|
|
|
-- {DEVCRYPTO_CMD_CIPHERS,
|
|
|
-- "CIPHERS",
|
|
|
-- "either ALL, NONE, or a comma-separated list of ciphers to enable [default=ALL]",
|
|
|
-- ENGINE_CMD_FLAG_STRING},
|
|
|
--
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- {DEVCRYPTO_CMD_DIGESTS,
|
|
|
-- "DIGESTS",
|
|
|
-- "either ALL, NONE, or a comma-separated list of digests to enable [default=ALL]",
|
|
|
-- ENGINE_CMD_FLAG_STRING},
|
|
|
--#endif
|
|
|
--
|
|
|
-- {DEVCRYPTO_CMD_DUMP_INFO,
|
|
|
-- "DUMP_INFO",
|
|
|
-- "dump info about each algorithm to stderr; use 'openssl engine -pre DUMP_INFO devcrypto'",
|
|
|
-- ENGINE_CMD_FLAG_NO_INPUT},
|
|
|
--
|
|
|
-- {0, NULL, NULL, 0}
|
|
|
--};
|
|
|
--
|
|
|
--static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
|
|
|
--{
|
|
|
-- int *new_list;
|
|
|
-- switch (cmd) {
|
|
|
--#ifdef CIOCGSESSINFO
|
|
|
-- case DEVCRYPTO_CMD_USE_SOFTDRIVERS:
|
|
|
-- switch (i) {
|
|
|
-- case DEVCRYPTO_REQUIRE_ACCELERATED:
|
|
|
-- case DEVCRYPTO_USE_SOFTWARE:
|
|
|
-- case DEVCRYPTO_REJECT_SOFTWARE:
|
|
|
-- break;
|
|
|
-- default:
|
|
|
-- fprintf(stderr, "devcrypto: invalid value (%ld) for USE_SOFTDRIVERS\n", i);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
-- if (use_softdrivers == i)
|
|
|
-- return 1;
|
|
|
-- use_softdrivers = i;
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- rebuild_known_digest_nids(e);
|
|
|
--#endif
|
|
|
-- rebuild_known_cipher_nids(e);
|
|
|
-- return 1;
|
|
|
--#endif /* CIOCGSESSINFO */
|
|
|
--
|
|
|
-- case DEVCRYPTO_CMD_CIPHERS:
|
|
|
-- if (p == NULL)
|
|
|
-- return 1;
|
|
|
-- if (strcasecmp((const char *)p, "ALL") == 0) {
|
|
|
-- devcrypto_select_all_ciphers(selected_ciphers);
|
|
|
-- } else if (strcasecmp((const char*)p, "NONE") == 0) {
|
|
|
-- memset(selected_ciphers, 0, sizeof(selected_ciphers));
|
|
|
-- } else {
|
|
|
-- new_list=OPENSSL_zalloc(sizeof(selected_ciphers));
|
|
|
-- if (!CONF_parse_list(p, ',', 1, cryptodev_select_cipher_cb, new_list)) {
|
|
|
-- OPENSSL_free(new_list);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
-- memcpy(selected_ciphers, new_list, sizeof(selected_ciphers));
|
|
|
-- OPENSSL_free(new_list);
|
|
|
-- }
|
|
|
-- rebuild_known_cipher_nids(e);
|
|
|
-- return 1;
|
|
|
--
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- case DEVCRYPTO_CMD_DIGESTS:
|
|
|
-- if (p == NULL)
|
|
|
-- return 1;
|
|
|
-- if (strcasecmp((const char *)p, "ALL") == 0) {
|
|
|
-- devcrypto_select_all_digests(selected_digests);
|
|
|
-- } else if (strcasecmp((const char*)p, "NONE") == 0) {
|
|
|
-- memset(selected_digests, 0, sizeof(selected_digests));
|
|
|
-- } else {
|
|
|
-- new_list=OPENSSL_zalloc(sizeof(selected_digests));
|
|
|
-- if (!CONF_parse_list(p, ',', 1, cryptodev_select_digest_cb, new_list)) {
|
|
|
-- OPENSSL_free(new_list);
|
|
|
-- return 0;
|
|
|
-- }
|
|
|
-- memcpy(selected_digests, new_list, sizeof(selected_digests));
|
|
|
-- OPENSSL_free(new_list);
|
|
|
-- }
|
|
|
-- rebuild_known_digest_nids(e);
|
|
|
-- return 1;
|
|
|
--#endif /* IMPLEMENT_DIGEST */
|
|
|
--
|
|
|
-- case DEVCRYPTO_CMD_DUMP_INFO:
|
|
|
-- dump_cipher_info();
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- dump_digest_info();
|
|
|
--#endif
|
|
|
-- return 1;
|
|
|
--
|
|
|
-- default:
|
|
|
-- break;
|
|
|
-- }
|
|
|
-- return 0;
|
|
|
--}
|
|
|
--
|
|
|
--/******************************************************************************
|
|
|
-- *
|
|
|
-- * LOAD / UNLOAD
|
|
|
-- *
|
|
|
-- *****/
|
|
|
--
|
|
|
--static int devcrypto_unload(ENGINE *e)
|
|
|
--{
|
|
|
-- destroy_all_cipher_methods();
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- destroy_all_digest_methods();
|
|
|
--#endif
|
|
|
--
|
|
|
-- close(cfd);
|
|
|
--
|
|
|
-- return 1;
|
|
|
--}
|
|
|
--/*
|
|
|
-- * This engine is always built into libcrypto, so it doesn't offer any
|
|
|
-- * ability to be dynamically loadable.
|
|
|
-- */
|
|
|
--void engine_load_devcrypto_int()
|
|
|
--{
|
|
|
-- ENGINE *e = NULL;
|
|
|
-- int fd;
|
|
|
--
|
|
|
-- if ((fd = open("/dev/crypto", O_RDWR, 0)) < 0) {
|
|
|
--#ifndef ENGINE_DEVCRYPTO_DEBUG
|
|
|
-- if (errno != ENOENT)
|
|
|
--#endif
|
|
|
-- fprintf(stderr, "Could not open /dev/crypto: %s\n", strerror(errno));
|
|
|
-- return;
|
|
|
-- }
|
|
|
--
|
|
|
--#ifdef CRIOGET
|
|
|
-- if (ioctl(fd, CRIOGET, &cfd) < 0) {
|
|
|
-- fprintf(stderr, "Could not create crypto fd: %s\n", strerror(errno));
|
|
|
-- close(fd);
|
|
|
-- cfd = -1;
|
|
|
-- return;
|
|
|
-- }
|
|
|
-- close(fd);
|
|
|
--#else
|
|
|
-- cfd = fd;
|
|
|
--#endif
|
|
|
--
|
|
|
-- if ((e = ENGINE_new()) == NULL
|
|
|
-- || !ENGINE_set_destroy_function(e, devcrypto_unload)) {
|
|
|
-- ENGINE_free(e);
|
|
|
-- /*
|
|
|
-- * We know that devcrypto_unload() won't be called when one of the
|
|
|
-- * above two calls have failed, so we close cfd explicitly here to
|
|
|
-- * avoid leaking resources.
|
|
|
-- */
|
|
|
-- close(cfd);
|
|
|
-- return;
|
|
|
-- }
|
|
|
--
|
|
|
-- prepare_cipher_methods();
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- prepare_digest_methods();
|
|
|
--#endif
|
|
|
--
|
|
|
-- if (!ENGINE_set_id(e, "devcrypto")
|
|
|
-- || !ENGINE_set_name(e, "/dev/crypto engine")
|
|
|
-- || !ENGINE_set_cmd_defns(e, devcrypto_cmds)
|
|
|
-- || !ENGINE_set_ctrl_function(e, devcrypto_ctrl)
|
|
|
--
|
|
|
--/*
|
|
|
-- * Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD
|
|
|
-- * implementations, it seems to only exist in FreeBSD, and regarding the
|
|
|
-- * parameters in its crypt_kop, the manual crypto(4) has this to say:
|
|
|
-- *
|
|
|
-- * The semantics of these arguments are currently undocumented.
|
|
|
-- *
|
|
|
-- * Reading through the FreeBSD source code doesn't give much more than
|
|
|
-- * their CRK_MOD_EXP implementation for ubsec.
|
|
|
-- *
|
|
|
-- * It doesn't look much better with cryptodev-linux. They have the crypt_kop
|
|
|
-- * structure as well as the command (CRK_*) in cryptodev.h, but no support
|
|
|
-- * seems to be implemented at all for the moment.
|
|
|
-- *
|
|
|
-- * At the time of writing, it seems impossible to write proper support for
|
|
|
-- * FreeBSD's asym features without some very deep knowledge and access to
|
|
|
-- * specific kernel modules.
|
|
|
-- *
|
|
|
-- * /Richard Levitte, 2017-05-11
|
|
|
-- */
|
|
|
--#if 0
|
|
|
--# ifndef OPENSSL_NO_RSA
|
|
|
-- || !ENGINE_set_RSA(e, devcrypto_rsa)
|
|
|
--# endif
|
|
|
--# ifndef OPENSSL_NO_DSA
|
|
|
-- || !ENGINE_set_DSA(e, devcrypto_dsa)
|
|
|
--# endif
|
|
|
--# ifndef OPENSSL_NO_DH
|
|
|
-- || !ENGINE_set_DH(e, devcrypto_dh)
|
|
|
--# endif
|
|
|
--# ifndef OPENSSL_NO_EC
|
|
|
-- || !ENGINE_set_EC(e, devcrypto_ec)
|
|
|
--# endif
|
|
|
--#endif
|
|
|
-- || !ENGINE_set_ciphers(e, devcrypto_ciphers)
|
|
|
--#ifdef IMPLEMENT_DIGEST
|
|
|
-- || !ENGINE_set_digests(e, devcrypto_digests)
|
|
|
--#endif
|
|
|
-- ) {
|
|
|
-- ENGINE_free(e);
|
|
|
-- return;
|
|
|
-- }
|
|
|
--
|
|
|
-- ENGINE_add(e);
|
|
|
-- ENGINE_free(e); /* Loose our local reference */
|
|
|
-- ERR_clear_error();
|
|
|
--}
|
|
|
---- /dev/null
|
|
|
-+++ b/engines/e_devcrypto.c
|
|
|
-@@ -0,0 +1,1327 @@
|
|
|
-+/*
|
|
|
-+ * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
-+ *
|
|
|
-+ * Licensed under the OpenSSL license (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 "../e_os.h"
|
|
|
-+#include <string.h>
|
|
|
-+#include <sys/types.h>
|
|
|
-+#include <sys/stat.h>
|
|
|
-+#include <fcntl.h>
|
|
|
-+#include <sys/ioctl.h>
|
|
|
-+#include <unistd.h>
|
|
|
-+#include <assert.h>
|
|
|
-+
|
|
|
-+#include <openssl/conf.h>
|
|
|
-+#include <openssl/evp.h>
|
|
|
-+#include <openssl/err.h>
|
|
|
-+#include <openssl/engine.h>
|
|
|
-+#include <openssl/objects.h>
|
|
|
-+#include <crypto/cryptodev.h>
|
|
|
-+
|
|
|
-+#include "crypto/engine.h"
|
|
|
-+
|
|
|
-+/* #define ENGINE_DEVCRYPTO_DEBUG */
|
|
|
-+
|
|
|
-+#if CRYPTO_ALGORITHM_MIN < CRYPTO_ALGORITHM_MAX
|
|
|
-+# define CHECK_BSD_STYLE_MACROS
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+#define engine_devcrypto_id "devcrypto"
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * ONE global file descriptor for all sessions. This allows operations
|
|
|
-+ * such as digest session data copying (see digest_copy()), but is also
|
|
|
-+ * saner... why re-open /dev/crypto for every session?
|
|
|
-+ */
|
|
|
-+static int cfd = -1;
|
|
|
-+#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */
|
|
|
-+#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */
|
|
|
-+#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */
|
|
|
-+
|
|
|
-+#define DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS DEVCRYPTO_REJECT_SOFTWARE
|
|
|
-+static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS;
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * cipher/digest status & acceleration definitions
|
|
|
-+ * Make sure the defaults are set to 0
|
|
|
-+ */
|
|
|
-+struct driver_info_st {
|
|
|
-+ enum devcrypto_status_t {
|
|
|
-+ DEVCRYPTO_STATUS_FAILURE = -3, /* unusable for other reason */
|
|
|
-+ DEVCRYPTO_STATUS_NO_CIOCCPHASH = -2, /* hash state copy not supported */
|
|
|
-+ DEVCRYPTO_STATUS_NO_CIOCGSESSION = -1, /* session open failed */
|
|
|
-+ DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */
|
|
|
-+ DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */
|
|
|
-+ } status;
|
|
|
-+
|
|
|
-+ enum devcrypto_accelerated_t {
|
|
|
-+ DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */
|
|
|
-+ DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */
|
|
|
-+ DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */
|
|
|
-+ } accelerated;
|
|
|
-+
|
|
|
-+ char *driver_name;
|
|
|
-+};
|
|
|
-+
|
|
|
-+static int clean_devcrypto_session(struct session_op *sess) {
|
|
|
-+ if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ memset(sess, 0, sizeof(struct session_op));
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+/******************************************************************************
|
|
|
-+ *
|
|
|
-+ * Ciphers
|
|
|
-+ *
|
|
|
-+ * Because they all do the same basic operation, we have only one set of
|
|
|
-+ * method functions for them all to share, and a mapping table between
|
|
|
-+ * NIDs and cryptodev IDs, with all the necessary size data.
|
|
|
-+ *
|
|
|
-+ *****/
|
|
|
-+
|
|
|
-+struct cipher_ctx {
|
|
|
-+ struct session_op sess;
|
|
|
-+ int op; /* COP_ENCRYPT or COP_DECRYPT */
|
|
|
-+ unsigned long mode; /* EVP_CIPH_*_MODE */
|
|
|
-+
|
|
|
-+ /* to handle ctr mode being a stream cipher */
|
|
|
-+ unsigned char partial[EVP_MAX_BLOCK_LENGTH];
|
|
|
-+ unsigned int blocksize, num;
|
|
|
-+};
|
|
|
-+
|
|
|
-+static const struct cipher_data_st {
|
|
|
-+ int nid;
|
|
|
-+ int blocksize;
|
|
|
-+ int keylen;
|
|
|
-+ int ivlen;
|
|
|
-+ int flags;
|
|
|
-+ int devcryptoid;
|
|
|
-+} cipher_data[] = {
|
|
|
-+#ifndef OPENSSL_NO_DES
|
|
|
-+ { NID_des_cbc, 8, 8, 8, EVP_CIPH_CBC_MODE, CRYPTO_DES_CBC },
|
|
|
-+ { NID_des_ede3_cbc, 8, 24, 8, EVP_CIPH_CBC_MODE, CRYPTO_3DES_CBC },
|
|
|
-+#endif
|
|
|
-+#ifndef OPENSSL_NO_BF
|
|
|
-+ { NID_bf_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_BLF_CBC },
|
|
|
-+#endif
|
|
|
-+#ifndef OPENSSL_NO_CAST
|
|
|
-+ { NID_cast5_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_CAST_CBC },
|
|
|
-+#endif
|
|
|
-+ { NID_aes_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
|
|
|
-+ { NID_aes_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
|
|
|
-+ { NID_aes_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
|
|
|
-+#ifndef OPENSSL_NO_RC4
|
|
|
-+ { NID_rc4, 1, 16, 0, EVP_CIPH_STREAM_CIPHER, CRYPTO_ARC4 },
|
|
|
-+#endif
|
|
|
-+#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_CTR)
|
|
|
-+ { NID_aes_128_ctr, 16, 128 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
|
|
|
-+ { NID_aes_192_ctr, 16, 192 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
|
|
|
-+ { NID_aes_256_ctr, 16, 256 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
|
|
|
-+#endif
|
|
|
-+#if 0 /* Not yet supported */
|
|
|
-+ { NID_aes_128_xts, 16, 128 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS },
|
|
|
-+ { NID_aes_256_xts, 16, 256 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS },
|
|
|
-+#endif
|
|
|
-+#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_ECB)
|
|
|
-+ { NID_aes_128_ecb, 16, 128 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
|
|
|
-+ { NID_aes_192_ecb, 16, 192 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
|
|
|
-+ { NID_aes_256_ecb, 16, 256 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
|
|
|
-+#endif
|
|
|
-+#if 0 /* Not yet supported */
|
|
|
-+ { NID_aes_128_gcm, 16, 128 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
|
|
|
-+ { NID_aes_192_gcm, 16, 192 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
|
|
|
-+ { NID_aes_256_gcm, 16, 256 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
|
|
|
-+#endif
|
|
|
-+#ifndef OPENSSL_NO_CAMELLIA
|
|
|
-+ { NID_camellia_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE,
|
|
|
-+ CRYPTO_CAMELLIA_CBC },
|
|
|
-+ { NID_camellia_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE,
|
|
|
-+ CRYPTO_CAMELLIA_CBC },
|
|
|
-+ { NID_camellia_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE,
|
|
|
-+ CRYPTO_CAMELLIA_CBC },
|
|
|
-+#endif
|
|
|
-+};
|
|
|
-+
|
|
|
-+static size_t find_cipher_data_index(int nid)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(cipher_data); i++)
|
|
|
-+ if (nid == cipher_data[i].nid)
|
|
|
-+ return i;
|
|
|
-+ return (size_t)-1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static size_t get_cipher_data_index(int nid)
|
|
|
-+{
|
|
|
-+ size_t i = find_cipher_data_index(nid);
|
|
|
-+
|
|
|
-+ if (i != (size_t)-1)
|
|
|
-+ return i;
|
|
|
-+
|
|
|
-+ /*
|
|
|
-+ * Code further down must make sure that only NIDs in the table above
|
|
|
-+ * are used. If any other NID reaches this function, there's a grave
|
|
|
-+ * coding error further down.
|
|
|
-+ */
|
|
|
-+ assert("Code that never should be reached" == NULL);
|
|
|
-+ return -1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static const struct cipher_data_st *get_cipher_data(int nid)
|
|
|
-+{
|
|
|
-+ return &cipher_data[get_cipher_data_index(nid)];
|
|
|
-+}
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * Following are the three necessary functions to map OpenSSL functionality
|
|
|
-+ * with cryptodev.
|
|
|
-+ */
|
|
|
-+
|
|
|
-+static int cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
|
-+ const unsigned char *iv, int enc)
|
|
|
-+{
|
|
|
-+ struct cipher_ctx *cipher_ctx =
|
|
|
-+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-+ const struct cipher_data_st *cipher_d =
|
|
|
-+ get_cipher_data(EVP_CIPHER_CTX_nid(ctx));
|
|
|
-+
|
|
|
-+ /* cleanup a previous session */
|
|
|
-+ if (cipher_ctx->sess.ses != 0 &&
|
|
|
-+ clean_devcrypto_session(&cipher_ctx->sess) == 0)
|
|
|
-+ return 0;
|
|
|
-+
|
|
|
-+ cipher_ctx->sess.cipher = cipher_d->devcryptoid;
|
|
|
-+ cipher_ctx->sess.keylen = cipher_d->keylen;
|
|
|
-+ cipher_ctx->sess.key = (void *)key;
|
|
|
-+ cipher_ctx->op = enc ? COP_ENCRYPT : COP_DECRYPT;
|
|
|
-+ cipher_ctx->mode = cipher_d->flags & EVP_CIPH_MODE;
|
|
|
-+ cipher_ctx->blocksize = cipher_d->blocksize;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSION, &cipher_ctx->sess) < 0) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
|
-+ const unsigned char *in, size_t inl)
|
|
|
-+{
|
|
|
-+ struct cipher_ctx *cipher_ctx =
|
|
|
-+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-+ struct crypt_op cryp;
|
|
|
-+ unsigned char *iv = EVP_CIPHER_CTX_iv_noconst(ctx);
|
|
|
-+#if !defined(COP_FLAG_WRITE_IV)
|
|
|
-+ unsigned char saved_iv[EVP_MAX_IV_LENGTH];
|
|
|
-+ const unsigned char *ivptr;
|
|
|
-+ size_t nblocks, ivlen;
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ memset(&cryp, 0, sizeof(cryp));
|
|
|
-+ cryp.ses = cipher_ctx->sess.ses;
|
|
|
-+ cryp.len = inl;
|
|
|
-+ cryp.src = (void *)in;
|
|
|
-+ cryp.dst = (void *)out;
|
|
|
-+ cryp.iv = (void *)iv;
|
|
|
-+ cryp.op = cipher_ctx->op;
|
|
|
-+#if !defined(COP_FLAG_WRITE_IV)
|
|
|
-+ cryp.flags = 0;
|
|
|
-+
|
|
|
-+ ivlen = EVP_CIPHER_CTX_iv_length(ctx);
|
|
|
-+ if (ivlen > 0)
|
|
|
-+ switch (cipher_ctx->mode) {
|
|
|
-+ case EVP_CIPH_CBC_MODE:
|
|
|
-+ assert(inl >= ivlen);
|
|
|
-+ if (!EVP_CIPHER_CTX_encrypting(ctx)) {
|
|
|
-+ ivptr = in + inl - ivlen;
|
|
|
-+ memcpy(saved_iv, ivptr, ivlen);
|
|
|
-+ }
|
|
|
-+ break;
|
|
|
-+
|
|
|
-+ case EVP_CIPH_CTR_MODE:
|
|
|
-+ break;
|
|
|
-+
|
|
|
-+ default: /* should not happen */
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+#else
|
|
|
-+ cryp.flags = COP_FLAG_WRITE_IV;
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ if (ioctl(cfd, CIOCCRYPT, &cryp) < 0) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+#if !defined(COP_FLAG_WRITE_IV)
|
|
|
-+ if (ivlen > 0)
|
|
|
-+ switch (cipher_ctx->mode) {
|
|
|
-+ case EVP_CIPH_CBC_MODE:
|
|
|
-+ assert(inl >= ivlen);
|
|
|
-+ if (EVP_CIPHER_CTX_encrypting(ctx))
|
|
|
-+ ivptr = out + inl - ivlen;
|
|
|
-+ else
|
|
|
-+ ivptr = saved_iv;
|
|
|
-+
|
|
|
-+ memcpy(iv, ivptr, ivlen);
|
|
|
-+ break;
|
|
|
-+
|
|
|
-+ case EVP_CIPH_CTR_MODE:
|
|
|
-+ nblocks = (inl + cipher_ctx->blocksize - 1)
|
|
|
-+ / cipher_ctx->blocksize;
|
|
|
-+ do {
|
|
|
-+ ivlen--;
|
|
|
-+ nblocks += iv[ivlen];
|
|
|
-+ iv[ivlen] = (uint8_t) nblocks;
|
|
|
-+ nblocks >>= 8;
|
|
|
-+ } while (ivlen);
|
|
|
-+ break;
|
|
|
-+
|
|
|
-+ default: /* should not happen */
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int ctr_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
|
|
-+ const unsigned char *in, size_t inl)
|
|
|
-+{
|
|
|
-+ struct cipher_ctx *cipher_ctx =
|
|
|
-+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-+ size_t nblocks, len;
|
|
|
-+
|
|
|
-+ /* initial partial block */
|
|
|
-+ while (cipher_ctx->num && inl) {
|
|
|
-+ (*out++) = *(in++) ^ cipher_ctx->partial[cipher_ctx->num];
|
|
|
-+ --inl;
|
|
|
-+ cipher_ctx->num = (cipher_ctx->num + 1) % cipher_ctx->blocksize;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ /* full blocks */
|
|
|
-+ if (inl > (unsigned int) cipher_ctx->blocksize) {
|
|
|
-+ nblocks = inl/cipher_ctx->blocksize;
|
|
|
-+ len = nblocks * cipher_ctx->blocksize;
|
|
|
-+ if (cipher_do_cipher(ctx, out, in, len) < 1)
|
|
|
-+ return 0;
|
|
|
-+ inl -= len;
|
|
|
-+ out += len;
|
|
|
-+ in += len;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ /* final partial block */
|
|
|
-+ if (inl) {
|
|
|
-+ memset(cipher_ctx->partial, 0, cipher_ctx->blocksize);
|
|
|
-+ if (cipher_do_cipher(ctx, cipher_ctx->partial, cipher_ctx->partial,
|
|
|
-+ cipher_ctx->blocksize) < 1)
|
|
|
-+ return 0;
|
|
|
-+ while (inl--) {
|
|
|
-+ out[cipher_ctx->num] = in[cipher_ctx->num]
|
|
|
-+ ^ cipher_ctx->partial[cipher_ctx->num];
|
|
|
-+ cipher_ctx->num++;
|
|
|
-+ }
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2)
|
|
|
-+{
|
|
|
-+ struct cipher_ctx *cipher_ctx =
|
|
|
-+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-+ EVP_CIPHER_CTX *to_ctx = (EVP_CIPHER_CTX *)p2;
|
|
|
-+ struct cipher_ctx *to_cipher_ctx;
|
|
|
-+
|
|
|
-+ switch (type) {
|
|
|
-+ case EVP_CTRL_COPY:
|
|
|
-+ if (cipher_ctx == NULL)
|
|
|
-+ return 1;
|
|
|
-+ /* when copying the context, a new session needs to be initialized */
|
|
|
-+ to_cipher_ctx =
|
|
|
-+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(to_ctx);
|
|
|
-+ memset(&to_cipher_ctx->sess, 0, sizeof(to_cipher_ctx->sess));
|
|
|
-+ return cipher_init(to_ctx, cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx),
|
|
|
-+ (cipher_ctx->op == COP_ENCRYPT));
|
|
|
-+
|
|
|
-+ case EVP_CTRL_INIT:
|
|
|
-+ memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess));
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+ default:
|
|
|
-+ break;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ return -1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int cipher_cleanup(EVP_CIPHER_CTX *ctx)
|
|
|
-+{
|
|
|
-+ struct cipher_ctx *cipher_ctx =
|
|
|
-+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
-+
|
|
|
-+ return clean_devcrypto_session(&cipher_ctx->sess);
|
|
|
-+}
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * Keep tables of known nids, associated methods, selected ciphers, and driver
|
|
|
-+ * info.
|
|
|
-+ * Note that known_cipher_nids[] isn't necessarily indexed the same way as
|
|
|
-+ * cipher_data[] above, which the other tables are.
|
|
|
-+ */
|
|
|
-+static int known_cipher_nids[OSSL_NELEM(cipher_data)];
|
|
|
-+static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */
|
|
|
-+static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, };
|
|
|
-+static int selected_ciphers[OSSL_NELEM(cipher_data)];
|
|
|
-+static struct driver_info_st cipher_driver_info[OSSL_NELEM(cipher_data)];
|
|
|
-+
|
|
|
-+
|
|
|
-+static int devcrypto_test_cipher(size_t cipher_data_index)
|
|
|
-+{
|
|
|
-+ return (cipher_driver_info[cipher_data_index].status == DEVCRYPTO_STATUS_USABLE
|
|
|
-+ && selected_ciphers[cipher_data_index] == 1
|
|
|
-+ && (cipher_driver_info[cipher_data_index].accelerated
|
|
|
-+ == DEVCRYPTO_ACCELERATED
|
|
|
-+ || use_softdrivers == DEVCRYPTO_USE_SOFTWARE
|
|
|
-+ || (cipher_driver_info[cipher_data_index].accelerated
|
|
|
-+ != DEVCRYPTO_NOT_ACCELERATED
|
|
|
-+ && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE)));
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void prepare_cipher_methods(void)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+ struct session_op sess;
|
|
|
-+ unsigned long cipher_mode;
|
|
|
-+#ifdef CIOCGSESSINFO
|
|
|
-+ struct session_info_op siop;
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ memset(&cipher_driver_info, 0, sizeof(cipher_driver_info));
|
|
|
-+
|
|
|
-+ memset(&sess, 0, sizeof(sess));
|
|
|
-+ sess.key = (void *)"01234567890123456789012345678901234567890123456789";
|
|
|
-+
|
|
|
-+ for (i = 0, known_cipher_nids_amount = 0;
|
|
|
-+ i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-+
|
|
|
-+ selected_ciphers[i] = 1;
|
|
|
-+ /*
|
|
|
-+ * Check that the cipher is usable
|
|
|
-+ */
|
|
|
-+ sess.cipher = cipher_data[i].devcryptoid;
|
|
|
-+ sess.keylen = cipher_data[i].keylen;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSION, &sess) < 0) {
|
|
|
-+ cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
|
|
|
-+ continue;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ cipher_mode = cipher_data[i].flags & EVP_CIPH_MODE;
|
|
|
-+
|
|
|
-+ if ((known_cipher_methods[i] =
|
|
|
-+ EVP_CIPHER_meth_new(cipher_data[i].nid,
|
|
|
-+ cipher_mode == EVP_CIPH_CTR_MODE ? 1 :
|
|
|
-+ cipher_data[i].blocksize,
|
|
|
-+ cipher_data[i].keylen)) == NULL
|
|
|
-+ || !EVP_CIPHER_meth_set_iv_length(known_cipher_methods[i],
|
|
|
-+ cipher_data[i].ivlen)
|
|
|
-+ || !EVP_CIPHER_meth_set_flags(known_cipher_methods[i],
|
|
|
-+ cipher_data[i].flags
|
|
|
-+ | EVP_CIPH_CUSTOM_COPY
|
|
|
-+ | EVP_CIPH_CTRL_INIT
|
|
|
-+ | EVP_CIPH_FLAG_DEFAULT_ASN1)
|
|
|
-+ || !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init)
|
|
|
-+ || !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i],
|
|
|
-+ cipher_mode == EVP_CIPH_CTR_MODE ?
|
|
|
-+ ctr_do_cipher :
|
|
|
-+ cipher_do_cipher)
|
|
|
-+ || !EVP_CIPHER_meth_set_ctrl(known_cipher_methods[i], cipher_ctrl)
|
|
|
-+ || !EVP_CIPHER_meth_set_cleanup(known_cipher_methods[i],
|
|
|
-+ cipher_cleanup)
|
|
|
-+ || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i],
|
|
|
-+ sizeof(struct cipher_ctx))) {
|
|
|
-+ cipher_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
|
|
|
-+ EVP_CIPHER_meth_free(known_cipher_methods[i]);
|
|
|
-+ known_cipher_methods[i] = NULL;
|
|
|
-+ } else {
|
|
|
-+ cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE;
|
|
|
-+#ifdef CIOCGSESSINFO
|
|
|
-+ siop.ses = sess.ses;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) {
|
|
|
-+ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN;
|
|
|
-+ } else {
|
|
|
-+ cipher_driver_info[i].driver_name =
|
|
|
-+ OPENSSL_strndup(siop.cipher_info.cra_driver_name,
|
|
|
-+ CRYPTODEV_MAX_ALG_NAME);
|
|
|
-+ if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY))
|
|
|
-+ cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED;
|
|
|
-+ else
|
|
|
-+ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED;
|
|
|
-+ }
|
|
|
-+#endif /* CIOCGSESSINFO */
|
|
|
-+ }
|
|
|
-+ ioctl(cfd, CIOCFSESSION, &sess.ses);
|
|
|
-+ if (devcrypto_test_cipher(i)) {
|
|
|
-+ known_cipher_nids[known_cipher_nids_amount++] =
|
|
|
-+ cipher_data[i].nid;
|
|
|
-+ }
|
|
|
-+ }
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void rebuild_known_cipher_nids(ENGINE *e)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0, known_cipher_nids_amount = 0; i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-+ if (devcrypto_test_cipher(i))
|
|
|
-+ known_cipher_nids[known_cipher_nids_amount++] = cipher_data[i].nid;
|
|
|
-+ }
|
|
|
-+ ENGINE_unregister_ciphers(e);
|
|
|
-+ ENGINE_register_ciphers(e);
|
|
|
-+}
|
|
|
-+
|
|
|
-+static const EVP_CIPHER *get_cipher_method(int nid)
|
|
|
-+{
|
|
|
-+ size_t i = get_cipher_data_index(nid);
|
|
|
-+
|
|
|
-+ if (i == (size_t)-1)
|
|
|
-+ return NULL;
|
|
|
-+ return known_cipher_methods[i];
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int get_cipher_nids(const int **nids)
|
|
|
-+{
|
|
|
-+ *nids = known_cipher_nids;
|
|
|
-+ return known_cipher_nids_amount;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void destroy_cipher_method(int nid)
|
|
|
-+{
|
|
|
-+ size_t i = get_cipher_data_index(nid);
|
|
|
-+
|
|
|
-+ EVP_CIPHER_meth_free(known_cipher_methods[i]);
|
|
|
-+ known_cipher_methods[i] = NULL;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void destroy_all_cipher_methods(void)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-+ destroy_cipher_method(cipher_data[i].nid);
|
|
|
-+ OPENSSL_free(cipher_driver_info[i].driver_name);
|
|
|
-+ cipher_driver_info[i].driver_name = NULL;
|
|
|
-+ }
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
|
|
|
-+ const int **nids, int nid)
|
|
|
-+{
|
|
|
-+ if (cipher == NULL)
|
|
|
-+ return get_cipher_nids(nids);
|
|
|
-+
|
|
|
-+ *cipher = get_cipher_method(nid);
|
|
|
-+
|
|
|
-+ return *cipher != NULL;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void devcrypto_select_all_ciphers(int *cipher_list)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(cipher_data); i++)
|
|
|
-+ cipher_list[i] = 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int cryptodev_select_cipher_cb(const char *str, int len, void *usr)
|
|
|
-+{
|
|
|
-+ int *cipher_list = (int *)usr;
|
|
|
-+ char *name;
|
|
|
-+ const EVP_CIPHER *EVP;
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ if (len == 0)
|
|
|
-+ return 1;
|
|
|
-+ if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
|
|
|
-+ return 0;
|
|
|
-+ EVP = EVP_get_cipherbyname(name);
|
|
|
-+ if (EVP == NULL)
|
|
|
-+ fprintf(stderr, "devcrypto: unknown cipher %s\n", name);
|
|
|
-+ else if ((i = find_cipher_data_index(EVP_CIPHER_nid(EVP))) != (size_t)-1)
|
|
|
-+ cipher_list[i] = 1;
|
|
|
-+ else
|
|
|
-+ fprintf(stderr, "devcrypto: cipher %s not available\n", name);
|
|
|
-+ OPENSSL_free(name);
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void dump_cipher_info(void)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+ const char *name;
|
|
|
-+
|
|
|
-+ fprintf (stderr, "Information about ciphers supported by the /dev/crypto"
|
|
|
-+ " engine:\n");
|
|
|
-+#ifndef CIOCGSESSINFO
|
|
|
-+ fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n");
|
|
|
-+#endif
|
|
|
-+ for (i = 0; i < OSSL_NELEM(cipher_data); i++) {
|
|
|
-+ name = OBJ_nid2sn(cipher_data[i].nid);
|
|
|
-+ fprintf (stderr, "Cipher %s, NID=%d, /dev/crypto info: id=%d, ",
|
|
|
-+ name ? name : "unknown", cipher_data[i].nid,
|
|
|
-+ cipher_data[i].devcryptoid);
|
|
|
-+ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION ) {
|
|
|
-+ fprintf (stderr, "CIOCGSESSION (session open call) failed\n");
|
|
|
-+ continue;
|
|
|
-+ }
|
|
|
-+ fprintf (stderr, "driver=%s ", cipher_driver_info[i].driver_name ?
|
|
|
-+ cipher_driver_info[i].driver_name : "unknown");
|
|
|
-+ if (cipher_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED)
|
|
|
-+ fprintf(stderr, "(hw accelerated)");
|
|
|
-+ else if (cipher_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED)
|
|
|
-+ fprintf(stderr, "(software)");
|
|
|
-+ else
|
|
|
-+ fprintf(stderr, "(acceleration status unknown)");
|
|
|
-+ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE)
|
|
|
-+ fprintf (stderr, ". Cipher setup failed");
|
|
|
-+ fprintf(stderr, "\n");
|
|
|
-+ }
|
|
|
-+ fprintf(stderr, "\n");
|
|
|
-+}
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * We only support digests if the cryptodev implementation supports multiple
|
|
|
-+ * data updates and session copying. Otherwise, we would be forced to maintain
|
|
|
-+ * a cache, which is perilous if there's a lot of data coming in (if someone
|
|
|
-+ * wants to checksum an OpenSSL tarball, for example).
|
|
|
-+ */
|
|
|
-+#if defined(CIOCCPHASH) && defined(COP_FLAG_UPDATE) && defined(COP_FLAG_FINAL)
|
|
|
-+#define IMPLEMENT_DIGEST
|
|
|
-+
|
|
|
-+/******************************************************************************
|
|
|
-+ *
|
|
|
-+ * Digests
|
|
|
-+ *
|
|
|
-+ * Because they all do the same basic operation, we have only one set of
|
|
|
-+ * method functions for them all to share, and a mapping table between
|
|
|
-+ * NIDs and cryptodev IDs, with all the necessary size data.
|
|
|
-+ *
|
|
|
-+ *****/
|
|
|
-+
|
|
|
-+struct digest_ctx {
|
|
|
-+ struct session_op sess;
|
|
|
-+ /* This signals that the init function was called, not that it succeeded. */
|
|
|
-+ int init_called;
|
|
|
-+ unsigned char digest_res[HASH_MAX_LEN];
|
|
|
-+};
|
|
|
-+
|
|
|
-+static const struct digest_data_st {
|
|
|
-+ int nid;
|
|
|
-+ int blocksize;
|
|
|
-+ int digestlen;
|
|
|
-+ int devcryptoid;
|
|
|
-+} digest_data[] = {
|
|
|
-+#ifndef OPENSSL_NO_MD5
|
|
|
-+ { NID_md5, /* MD5_CBLOCK */ 64, 16, CRYPTO_MD5 },
|
|
|
-+#endif
|
|
|
-+ { NID_sha1, SHA_CBLOCK, 20, CRYPTO_SHA1 },
|
|
|
-+#ifndef OPENSSL_NO_RMD160
|
|
|
-+# if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_RIPEMD160)
|
|
|
-+ { NID_ripemd160, /* RIPEMD160_CBLOCK */ 64, 20, CRYPTO_RIPEMD160 },
|
|
|
-+# endif
|
|
|
-+#endif
|
|
|
-+#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_224)
|
|
|
-+ { NID_sha224, SHA256_CBLOCK, 224 / 8, CRYPTO_SHA2_224 },
|
|
|
-+#endif
|
|
|
-+#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_256)
|
|
|
-+ { NID_sha256, SHA256_CBLOCK, 256 / 8, CRYPTO_SHA2_256 },
|
|
|
-+#endif
|
|
|
-+#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_384)
|
|
|
-+ { NID_sha384, SHA512_CBLOCK, 384 / 8, CRYPTO_SHA2_384 },
|
|
|
-+#endif
|
|
|
-+#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_512)
|
|
|
-+ { NID_sha512, SHA512_CBLOCK, 512 / 8, CRYPTO_SHA2_512 },
|
|
|
-+#endif
|
|
|
-+};
|
|
|
-+
|
|
|
-+static size_t find_digest_data_index(int nid)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(digest_data); i++)
|
|
|
-+ if (nid == digest_data[i].nid)
|
|
|
-+ return i;
|
|
|
-+ return (size_t)-1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static size_t get_digest_data_index(int nid)
|
|
|
-+{
|
|
|
-+ size_t i = find_digest_data_index(nid);
|
|
|
-+
|
|
|
-+ if (i != (size_t)-1)
|
|
|
-+ return i;
|
|
|
-+
|
|
|
-+ /*
|
|
|
-+ * Code further down must make sure that only NIDs in the table above
|
|
|
-+ * are used. If any other NID reaches this function, there's a grave
|
|
|
-+ * coding error further down.
|
|
|
-+ */
|
|
|
-+ assert("Code that never should be reached" == NULL);
|
|
|
-+ return -1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static const struct digest_data_st *get_digest_data(int nid)
|
|
|
-+{
|
|
|
-+ return &digest_data[get_digest_data_index(nid)];
|
|
|
-+}
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * Following are the five necessary functions to map OpenSSL functionality
|
|
|
-+ * with cryptodev: init, update, final, cleanup, and copy.
|
|
|
-+ */
|
|
|
-+
|
|
|
-+static int digest_init(EVP_MD_CTX *ctx)
|
|
|
-+{
|
|
|
-+ struct digest_ctx *digest_ctx =
|
|
|
-+ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
-+ const struct digest_data_st *digest_d =
|
|
|
-+ get_digest_data(EVP_MD_CTX_type(ctx));
|
|
|
-+
|
|
|
-+ digest_ctx->init_called = 1;
|
|
|
-+
|
|
|
-+ memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess));
|
|
|
-+ digest_ctx->sess.mac = digest_d->devcryptoid;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSION, &digest_ctx->sess) < 0) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int digest_op(struct digest_ctx *ctx, const void *src, size_t srclen,
|
|
|
-+ void *res, unsigned int flags)
|
|
|
-+{
|
|
|
-+ struct crypt_op cryp;
|
|
|
-+
|
|
|
-+ memset(&cryp, 0, sizeof(cryp));
|
|
|
-+ cryp.ses = ctx->sess.ses;
|
|
|
-+ cryp.len = srclen;
|
|
|
-+ cryp.src = (void *)src;
|
|
|
-+ cryp.dst = NULL;
|
|
|
-+ cryp.mac = res;
|
|
|
-+ cryp.flags = flags;
|
|
|
-+ return ioctl(cfd, CIOCCRYPT, &cryp);
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
|
|
|
-+{
|
|
|
-+ struct digest_ctx *digest_ctx =
|
|
|
-+ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
-+
|
|
|
-+ if (count == 0)
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+ if (digest_ctx == NULL)
|
|
|
-+ return 0;
|
|
|
-+
|
|
|
-+ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
|
|
|
-+ if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0)
|
|
|
-+ return 1;
|
|
|
-+ } else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) {
|
|
|
-+ return 1;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int digest_final(EVP_MD_CTX *ctx, unsigned char *md)
|
|
|
-+{
|
|
|
-+ struct digest_ctx *digest_ctx =
|
|
|
-+ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
-+
|
|
|
-+ if (md == NULL || digest_ctx == NULL)
|
|
|
-+ return 0;
|
|
|
-+
|
|
|
-+ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
|
|
|
-+ memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_size(ctx));
|
|
|
-+ } else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
|
|
|
-+{
|
|
|
-+ struct digest_ctx *digest_from =
|
|
|
-+ (struct digest_ctx *)EVP_MD_CTX_md_data(from);
|
|
|
-+ struct digest_ctx *digest_to =
|
|
|
-+ (struct digest_ctx *)EVP_MD_CTX_md_data(to);
|
|
|
-+ struct cphash_op cphash;
|
|
|
-+
|
|
|
-+ if (digest_from == NULL || digest_from->init_called != 1)
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+ if (!digest_init(to)) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ cphash.src_ses = digest_from->sess.ses;
|
|
|
-+ cphash.dst_ses = digest_to->sess.ses;
|
|
|
-+ if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) {
|
|
|
-+ SYSerr(SYS_F_IOCTL, errno);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int digest_cleanup(EVP_MD_CTX *ctx)
|
|
|
-+{
|
|
|
-+ struct digest_ctx *digest_ctx =
|
|
|
-+ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx);
|
|
|
-+
|
|
|
-+ if (digest_ctx == NULL)
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+ return clean_devcrypto_session(&digest_ctx->sess);
|
|
|
-+}
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * Keep tables of known nids, associated methods, selected digests, and
|
|
|
-+ * driver info.
|
|
|
-+ * Note that known_digest_nids[] isn't necessarily indexed the same way as
|
|
|
-+ * digest_data[] above, which the other tables are.
|
|
|
-+ */
|
|
|
-+static int known_digest_nids[OSSL_NELEM(digest_data)];
|
|
|
-+static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */
|
|
|
-+static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, };
|
|
|
-+static int selected_digests[OSSL_NELEM(digest_data)];
|
|
|
-+static struct driver_info_st digest_driver_info[OSSL_NELEM(digest_data)];
|
|
|
-+
|
|
|
-+static int devcrypto_test_digest(size_t digest_data_index)
|
|
|
-+{
|
|
|
-+ return (digest_driver_info[digest_data_index].status == DEVCRYPTO_STATUS_USABLE
|
|
|
-+ && selected_digests[digest_data_index] == 1
|
|
|
-+ && (digest_driver_info[digest_data_index].accelerated
|
|
|
-+ == DEVCRYPTO_ACCELERATED
|
|
|
-+ || use_softdrivers == DEVCRYPTO_USE_SOFTWARE
|
|
|
-+ || (digest_driver_info[digest_data_index].accelerated
|
|
|
-+ != DEVCRYPTO_NOT_ACCELERATED
|
|
|
-+ && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE)));
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void rebuild_known_digest_nids(ENGINE *e)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); i++) {
|
|
|
-+ if (devcrypto_test_digest(i))
|
|
|
-+ known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid;
|
|
|
-+ }
|
|
|
-+ ENGINE_unregister_digests(e);
|
|
|
-+ ENGINE_register_digests(e);
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void prepare_digest_methods(void)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+ struct session_op sess1, sess2;
|
|
|
-+#ifdef CIOCGSESSINFO
|
|
|
-+ struct session_info_op siop;
|
|
|
-+#endif
|
|
|
-+ struct cphash_op cphash;
|
|
|
-+
|
|
|
-+ memset(&digest_driver_info, 0, sizeof(digest_driver_info));
|
|
|
-+
|
|
|
-+ memset(&sess1, 0, sizeof(sess1));
|
|
|
-+ memset(&sess2, 0, sizeof(sess2));
|
|
|
-+
|
|
|
-+ for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data);
|
|
|
-+ i++) {
|
|
|
-+
|
|
|
-+ selected_digests[i] = 1;
|
|
|
-+
|
|
|
-+ /*
|
|
|
-+ * Check that the digest is usable
|
|
|
-+ */
|
|
|
-+ sess1.mac = digest_data[i].devcryptoid;
|
|
|
-+ sess2.ses = 0;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) {
|
|
|
-+ digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
|
|
|
-+ goto finish;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+#ifdef CIOCGSESSINFO
|
|
|
-+ /* gather hardware acceleration info from the driver */
|
|
|
-+ siop.ses = sess1.ses;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) {
|
|
|
-+ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN;
|
|
|
-+ } else {
|
|
|
-+ digest_driver_info[i].driver_name =
|
|
|
-+ OPENSSL_strndup(siop.hash_info.cra_driver_name,
|
|
|
-+ CRYPTODEV_MAX_ALG_NAME);
|
|
|
-+ if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)
|
|
|
-+ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED;
|
|
|
-+ else
|
|
|
-+ digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED;
|
|
|
-+ }
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ /* digest must be capable of hash state copy */
|
|
|
-+ sess2.mac = sess1.mac;
|
|
|
-+ if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) {
|
|
|
-+ digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
|
|
|
-+ goto finish;
|
|
|
-+ }
|
|
|
-+ cphash.src_ses = sess1.ses;
|
|
|
-+ cphash.dst_ses = sess2.ses;
|
|
|
-+ if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) {
|
|
|
-+ digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCCPHASH;
|
|
|
-+ goto finish;
|
|
|
-+ }
|
|
|
-+ if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid,
|
|
|
-+ NID_undef)) == NULL
|
|
|
-+ || !EVP_MD_meth_set_input_blocksize(known_digest_methods[i],
|
|
|
-+ digest_data[i].blocksize)
|
|
|
-+ || !EVP_MD_meth_set_result_size(known_digest_methods[i],
|
|
|
-+ digest_data[i].digestlen)
|
|
|
-+ || !EVP_MD_meth_set_init(known_digest_methods[i], digest_init)
|
|
|
-+ || !EVP_MD_meth_set_update(known_digest_methods[i], digest_update)
|
|
|
-+ || !EVP_MD_meth_set_final(known_digest_methods[i], digest_final)
|
|
|
-+ || !EVP_MD_meth_set_copy(known_digest_methods[i], digest_copy)
|
|
|
-+ || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup)
|
|
|
-+ || !EVP_MD_meth_set_app_datasize(known_digest_methods[i],
|
|
|
-+ sizeof(struct digest_ctx))) {
|
|
|
-+ digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
|
|
|
-+ EVP_MD_meth_free(known_digest_methods[i]);
|
|
|
-+ known_digest_methods[i] = NULL;
|
|
|
-+ goto finish;
|
|
|
-+ }
|
|
|
-+ digest_driver_info[i].status = DEVCRYPTO_STATUS_USABLE;
|
|
|
-+finish:
|
|
|
-+ ioctl(cfd, CIOCFSESSION, &sess1.ses);
|
|
|
-+ if (sess2.ses != 0)
|
|
|
-+ ioctl(cfd, CIOCFSESSION, &sess2.ses);
|
|
|
-+ if (devcrypto_test_digest(i))
|
|
|
-+ known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid;
|
|
|
-+ }
|
|
|
-+}
|
|
|
-+
|
|
|
-+static const EVP_MD *get_digest_method(int nid)
|
|
|
-+{
|
|
|
-+ size_t i = get_digest_data_index(nid);
|
|
|
-+
|
|
|
-+ if (i == (size_t)-1)
|
|
|
-+ return NULL;
|
|
|
-+ return known_digest_methods[i];
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int get_digest_nids(const int **nids)
|
|
|
-+{
|
|
|
-+ *nids = known_digest_nids;
|
|
|
-+ return known_digest_nids_amount;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void destroy_digest_method(int nid)
|
|
|
-+{
|
|
|
-+ size_t i = get_digest_data_index(nid);
|
|
|
-+
|
|
|
-+ EVP_MD_meth_free(known_digest_methods[i]);
|
|
|
-+ known_digest_methods[i] = NULL;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void destroy_all_digest_methods(void)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(digest_data); i++) {
|
|
|
-+ destroy_digest_method(digest_data[i].nid);
|
|
|
-+ OPENSSL_free(digest_driver_info[i].driver_name);
|
|
|
-+ digest_driver_info[i].driver_name = NULL;
|
|
|
-+ }
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int devcrypto_digests(ENGINE *e, const EVP_MD **digest,
|
|
|
-+ const int **nids, int nid)
|
|
|
-+{
|
|
|
-+ if (digest == NULL)
|
|
|
-+ return get_digest_nids(nids);
|
|
|
-+
|
|
|
-+ *digest = get_digest_method(nid);
|
|
|
-+
|
|
|
-+ return *digest != NULL;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void devcrypto_select_all_digests(int *digest_list)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(digest_data); i++)
|
|
|
-+ digest_list[i] = 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int cryptodev_select_digest_cb(const char *str, int len, void *usr)
|
|
|
-+{
|
|
|
-+ int *digest_list = (int *)usr;
|
|
|
-+ char *name;
|
|
|
-+ const EVP_MD *EVP;
|
|
|
-+ size_t i;
|
|
|
-+
|
|
|
-+ if (len == 0)
|
|
|
-+ return 1;
|
|
|
-+ if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
|
|
|
-+ return 0;
|
|
|
-+ EVP = EVP_get_digestbyname(name);
|
|
|
-+ if (EVP == NULL)
|
|
|
-+ fprintf(stderr, "devcrypto: unknown digest %s\n", name);
|
|
|
-+ else if ((i = find_digest_data_index(EVP_MD_type(EVP))) != (size_t)-1)
|
|
|
-+ digest_list[i] = 1;
|
|
|
-+ else
|
|
|
-+ fprintf(stderr, "devcrypto: digest %s not available\n", name);
|
|
|
-+ OPENSSL_free(name);
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static void dump_digest_info(void)
|
|
|
-+{
|
|
|
-+ size_t i;
|
|
|
-+ const char *name;
|
|
|
-+
|
|
|
-+ fprintf (stderr, "Information about digests supported by the /dev/crypto"
|
|
|
-+ " engine:\n");
|
|
|
-+#ifndef CIOCGSESSINFO
|
|
|
-+ fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n");
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ for (i = 0; i < OSSL_NELEM(digest_data); i++) {
|
|
|
-+ name = OBJ_nid2sn(digest_data[i].nid);
|
|
|
-+ fprintf (stderr, "Digest %s, NID=%d, /dev/crypto info: id=%d, driver=%s",
|
|
|
-+ name ? name : "unknown", digest_data[i].nid,
|
|
|
-+ digest_data[i].devcryptoid,
|
|
|
-+ digest_driver_info[i].driver_name ? digest_driver_info[i].driver_name : "unknown");
|
|
|
-+ if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) {
|
|
|
-+ fprintf (stderr, ". CIOCGSESSION (session open) failed\n");
|
|
|
-+ continue;
|
|
|
-+ }
|
|
|
-+ if (digest_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED)
|
|
|
-+ fprintf(stderr, " (hw accelerated)");
|
|
|
-+ else if (digest_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED)
|
|
|
-+ fprintf(stderr, " (software)");
|
|
|
-+ else
|
|
|
-+ fprintf(stderr, " (acceleration status unknown)");
|
|
|
-+ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE)
|
|
|
-+ fprintf (stderr, ". Cipher setup failed\n");
|
|
|
-+ else if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCCPHASH)
|
|
|
-+ fprintf(stderr, ", CIOCCPHASH failed\n");
|
|
|
-+ else
|
|
|
-+ fprintf(stderr, ", CIOCCPHASH capable\n");
|
|
|
-+ }
|
|
|
-+ fprintf(stderr, "\n");
|
|
|
-+}
|
|
|
-+
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+/******************************************************************************
|
|
|
-+ *
|
|
|
-+ * CONTROL COMMANDS
|
|
|
-+ *
|
|
|
-+ *****/
|
|
|
-+
|
|
|
-+#define DEVCRYPTO_CMD_USE_SOFTDRIVERS ENGINE_CMD_BASE
|
|
|
-+#define DEVCRYPTO_CMD_CIPHERS (ENGINE_CMD_BASE + 1)
|
|
|
-+#define DEVCRYPTO_CMD_DIGESTS (ENGINE_CMD_BASE + 2)
|
|
|
-+#define DEVCRYPTO_CMD_DUMP_INFO (ENGINE_CMD_BASE + 3)
|
|
|
-+
|
|
|
-+/* Helper macros for CPP string composition */
|
|
|
-+#ifndef OPENSSL_MSTR
|
|
|
-+# define OPENSSL_MSTR_HELPER(x) #x
|
|
|
-+# define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x)
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+static const ENGINE_CMD_DEFN devcrypto_cmds[] = {
|
|
|
-+#ifdef CIOCGSESSINFO
|
|
|
-+ {DEVCRYPTO_CMD_USE_SOFTDRIVERS,
|
|
|
-+ "USE_SOFTDRIVERS",
|
|
|
-+ "specifies whether to use software (not accelerated) drivers ("
|
|
|
-+ OPENSSL_MSTR(DEVCRYPTO_REQUIRE_ACCELERATED) "=use only accelerated drivers, "
|
|
|
-+ OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, "
|
|
|
-+ OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE)
|
|
|
-+ "=use if acceleration can't be determined) [default="
|
|
|
-+ OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS) "]",
|
|
|
-+ ENGINE_CMD_FLAG_NUMERIC},
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ {DEVCRYPTO_CMD_CIPHERS,
|
|
|
-+ "CIPHERS",
|
|
|
-+ "either ALL, NONE, or a comma-separated list of ciphers to enable [default=ALL]",
|
|
|
-+ ENGINE_CMD_FLAG_STRING},
|
|
|
-+
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ {DEVCRYPTO_CMD_DIGESTS,
|
|
|
-+ "DIGESTS",
|
|
|
-+ "either ALL, NONE, or a comma-separated list of digests to enable [default=ALL]",
|
|
|
-+ ENGINE_CMD_FLAG_STRING},
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ {DEVCRYPTO_CMD_DUMP_INFO,
|
|
|
-+ "DUMP_INFO",
|
|
|
-+ "dump info about each algorithm to stderr; use 'openssl engine -pre DUMP_INFO devcrypto'",
|
|
|
-+ ENGINE_CMD_FLAG_NO_INPUT},
|
|
|
-+
|
|
|
-+ {0, NULL, NULL, 0}
|
|
|
-+};
|
|
|
-+
|
|
|
-+static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
|
|
|
-+{
|
|
|
-+ int *new_list;
|
|
|
-+ switch (cmd) {
|
|
|
-+#ifdef CIOCGSESSINFO
|
|
|
-+ case DEVCRYPTO_CMD_USE_SOFTDRIVERS:
|
|
|
-+ switch (i) {
|
|
|
-+ case DEVCRYPTO_REQUIRE_ACCELERATED:
|
|
|
-+ case DEVCRYPTO_USE_SOFTWARE:
|
|
|
-+ case DEVCRYPTO_REJECT_SOFTWARE:
|
|
|
-+ break;
|
|
|
-+ default:
|
|
|
-+ fprintf(stderr, "devcrypto: invalid value (%ld) for USE_SOFTDRIVERS\n", i);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ if (use_softdrivers == i)
|
|
|
-+ return 1;
|
|
|
-+ use_softdrivers = i;
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ rebuild_known_digest_nids(e);
|
|
|
-+#endif
|
|
|
-+ rebuild_known_cipher_nids(e);
|
|
|
-+ return 1;
|
|
|
-+#endif /* CIOCGSESSINFO */
|
|
|
-+
|
|
|
-+ case DEVCRYPTO_CMD_CIPHERS:
|
|
|
-+ if (p == NULL)
|
|
|
-+ return 1;
|
|
|
-+ if (strcasecmp((const char *)p, "ALL") == 0) {
|
|
|
-+ devcrypto_select_all_ciphers(selected_ciphers);
|
|
|
-+ } else if (strcasecmp((const char*)p, "NONE") == 0) {
|
|
|
-+ memset(selected_ciphers, 0, sizeof(selected_ciphers));
|
|
|
-+ } else {
|
|
|
-+ new_list=OPENSSL_zalloc(sizeof(selected_ciphers));
|
|
|
-+ if (!CONF_parse_list(p, ',', 1, cryptodev_select_cipher_cb, new_list)) {
|
|
|
-+ OPENSSL_free(new_list);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ memcpy(selected_ciphers, new_list, sizeof(selected_ciphers));
|
|
|
-+ OPENSSL_free(new_list);
|
|
|
-+ }
|
|
|
-+ rebuild_known_cipher_nids(e);
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ case DEVCRYPTO_CMD_DIGESTS:
|
|
|
-+ if (p == NULL)
|
|
|
-+ return 1;
|
|
|
-+ if (strcasecmp((const char *)p, "ALL") == 0) {
|
|
|
-+ devcrypto_select_all_digests(selected_digests);
|
|
|
-+ } else if (strcasecmp((const char*)p, "NONE") == 0) {
|
|
|
-+ memset(selected_digests, 0, sizeof(selected_digests));
|
|
|
-+ } else {
|
|
|
-+ new_list=OPENSSL_zalloc(sizeof(selected_digests));
|
|
|
-+ if (!CONF_parse_list(p, ',', 1, cryptodev_select_digest_cb, new_list)) {
|
|
|
-+ OPENSSL_free(new_list);
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ memcpy(selected_digests, new_list, sizeof(selected_digests));
|
|
|
-+ OPENSSL_free(new_list);
|
|
|
-+ }
|
|
|
-+ rebuild_known_digest_nids(e);
|
|
|
-+ return 1;
|
|
|
-+#endif /* IMPLEMENT_DIGEST */
|
|
|
-+
|
|
|
-+ case DEVCRYPTO_CMD_DUMP_INFO:
|
|
|
-+ dump_cipher_info();
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ dump_digest_info();
|
|
|
-+#endif
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+ default:
|
|
|
-+ break;
|
|
|
-+ }
|
|
|
-+ return 0;
|
|
|
-+}
|
|
|
-+
|
|
|
-+/******************************************************************************
|
|
|
-+ *
|
|
|
-+ * LOAD / UNLOAD
|
|
|
-+ *
|
|
|
-+ *****/
|
|
|
-+
|
|
|
-+/*
|
|
|
-+ * Opens /dev/crypto
|
|
|
-+ */
|
|
|
-+static int open_devcrypto(void)
|
|
|
-+{
|
|
|
-+ int fd;
|
|
|
-+
|
|
|
-+ if (cfd >= 0)
|
|
|
-+ return 1;
|
|
|
-+
|
|
|
-+ if ((fd = open("/dev/crypto", O_RDWR, 0)) < 0) {
|
|
|
-+#ifndef ENGINE_DEVCRYPTO_DEBUG
|
|
|
-+ if (errno != ENOENT)
|
|
|
-+#endif
|
|
|
-+ fprintf(stderr, "Could not open /dev/crypto: %s\n", strerror(errno));
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+#ifdef CRIOGET
|
|
|
-+ if (ioctl(fd, CRIOGET, &cfd) < 0) {
|
|
|
-+ fprintf(stderr, "Could not create crypto fd: %s\n", strerror(errno));
|
|
|
-+ close(fd);
|
|
|
-+ cfd = -1;
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ close(fd);
|
|
|
-+#else
|
|
|
-+ cfd = fd;
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int close_devcrypto(void)
|
|
|
-+{
|
|
|
-+ int ret;
|
|
|
-+
|
|
|
-+ if (cfd < 0)
|
|
|
-+ return 1;
|
|
|
-+ ret = close(cfd);
|
|
|
-+ cfd = -1;
|
|
|
-+ if (ret != 0) {
|
|
|
-+ fprintf(stderr, "Error closing /dev/crypto: %s\n", strerror(errno));
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int devcrypto_unload(ENGINE *e)
|
|
|
-+{
|
|
|
-+ destroy_all_cipher_methods();
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ destroy_all_digest_methods();
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ close_devcrypto();
|
|
|
-+
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+static int bind_devcrypto(ENGINE *e) {
|
|
|
-+
|
|
|
-+ if (!ENGINE_set_id(e, engine_devcrypto_id)
|
|
|
-+ || !ENGINE_set_name(e, "/dev/crypto engine")
|
|
|
-+ || !ENGINE_set_destroy_function(e, devcrypto_unload)
|
|
|
-+ || !ENGINE_set_cmd_defns(e, devcrypto_cmds)
|
|
|
-+ || !ENGINE_set_ctrl_function(e, devcrypto_ctrl))
|
|
|
-+ return 0;
|
|
|
-+
|
|
|
-+ prepare_cipher_methods();
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ prepare_digest_methods();
|
|
|
-+#endif
|
|
|
-+
|
|
|
-+ return (ENGINE_set_ciphers(e, devcrypto_ciphers)
|
|
|
-+#ifdef IMPLEMENT_DIGEST
|
|
|
-+ && ENGINE_set_digests(e, devcrypto_digests)
|
|
|
-+#endif
|
|
|
-+/*
|
|
|
-+ * Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD
|
|
|
-+ * implementations, it seems to only exist in FreeBSD, and regarding the
|
|
|
-+ * parameters in its crypt_kop, the manual crypto(4) has this to say:
|
|
|
-+ *
|
|
|
-+ * The semantics of these arguments are currently undocumented.
|
|
|
-+ *
|
|
|
-+ * Reading through the FreeBSD source code doesn't give much more than
|
|
|
-+ * their CRK_MOD_EXP implementation for ubsec.
|
|
|
-+ *
|
|
|
-+ * It doesn't look much better with cryptodev-linux. They have the crypt_kop
|
|
|
-+ * structure as well as the command (CRK_*) in cryptodev.h, but no support
|
|
|
-+ * seems to be implemented at all for the moment.
|
|
|
-+ *
|
|
|
-+ * At the time of writing, it seems impossible to write proper support for
|
|
|
-+ * FreeBSD's asym features without some very deep knowledge and access to
|
|
|
-+ * specific kernel modules.
|
|
|
-+ *
|
|
|
-+ * /Richard Levitte, 2017-05-11
|
|
|
-+ */
|
|
|
-+#if 0
|
|
|
-+# ifndef OPENSSL_NO_RSA
|
|
|
-+ && ENGINE_set_RSA(e, devcrypto_rsa)
|
|
|
-+# endif
|
|
|
-+# ifndef OPENSSL_NO_DSA
|
|
|
-+ && ENGINE_set_DSA(e, devcrypto_dsa)
|
|
|
-+# endif
|
|
|
-+# ifndef OPENSSL_NO_DH
|
|
|
-+ && ENGINE_set_DH(e, devcrypto_dh)
|
|
|
-+# endif
|
|
|
-+# ifndef OPENSSL_NO_EC
|
|
|
-+ && ENGINE_set_EC(e, devcrypto_ec)
|
|
|
-+# endif
|
|
|
-+#endif
|
|
|
-+ );
|
|
|
-+}
|
|
|
-+
|
|
|
-+#ifdef OPENSSL_NO_DYNAMIC_ENGINE
|
|
|
-+/*
|
|
|
-+ * In case this engine is built into libcrypto, then it doesn't offer any
|
|
|
-+ * ability to be dynamically loadable.
|
|
|
-+ */
|
|
|
-+void engine_load_devcrypto_int(void)
|
|
|
-+{
|
|
|
-+ ENGINE *e = NULL;
|
|
|
-+
|
|
|
-+ if (!open_devcrypto())
|
|
|
-+ return;
|
|
|
-+
|
|
|
-+ if ((e = ENGINE_new()) == NULL
|
|
|
-+ || !bind_devcrypto(e)) {
|
|
|
-+ close_devcrypto();
|
|
|
-+ ENGINE_free(e);
|
|
|
-+ return;
|
|
|
-+ }
|
|
|
-+
|
|
|
-+ ENGINE_add(e);
|
|
|
-+ ENGINE_free(e); /* Loose our local reference */
|
|
|
-+ ERR_clear_error();
|
|
|
-+}
|
|
|
-+
|
|
|
-+#else
|
|
|
-+
|
|
|
-+static int bind_helper(ENGINE *e, const char *id)
|
|
|
-+{
|
|
|
-+ if ((id && (strcmp(id, engine_devcrypto_id) != 0))
|
|
|
-+ || !open_devcrypto())
|
|
|
-+ return 0;
|
|
|
-+ if (!bind_devcrypto(e)) {
|
|
|
-+ close_devcrypto();
|
|
|
-+ return 0;
|
|
|
-+ }
|
|
|
-+ return 1;
|
|
|
-+}
|
|
|
-+
|
|
|
-+IMPLEMENT_DYNAMIC_CHECK_FN()
|
|
|
-+IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
|
|
|
-+
|
|
|
-+#endif
|
Eneas U de Queiroz