static ENGINE *engine_qat(void)
{
ENGINE *ret = NULL;
unsigned int devmasks[] = { 0, 0, 0 };
DEBUG("[%s] engine_qat\n", __func__);
if (access(QAT_DEV, F_OK) != 0) {
QATerr(QAT_F_ENGINE_QAT, QAT_R_MEM_DRV_NOT_PRESENT);
return ret;
}
if (!getDevices(devmasks)) {
QATerr(QAT_F_ENGINE_QAT, QAT_R_QAT_DEV_NOT_PRESENT);
return ret;
}
ret = ENGINE_new();
if (!ret)
return NULL;
if (!bind_qat(ret, engine_qat_id)) {
WARN("qat engine bind failed!\n");
ENGINE_free(ret);
return NULL;
}
return ret;
}
int openssl_engine(lua_State *L){
const ENGINE* eng = NULL;
if(lua_isnoneornil(L, 1)){
eng = ENGINE_new();
}else if(lua_isstring(L, 1)){
const char* id = luaL_checkstring(L, 1);
eng = ENGINE_by_id(id);
}else if(lua_isboolean(L,1)){
int first = lua_toboolean(L, 1);
if(first)
eng = ENGINE_get_first();
else
eng = ENGINE_get_last();
}else
luaL_error(L,
"#1 may be string, boolean, nil, userdata for engine or none\n"
"\tstring for an engine id to load\n"
"\ttrue for first engine, false or last engine\n"
"\tnil or none will create a new engine\n"
"\tbut we get %s:%s",lua_typename(L,lua_type(L, 1)),lua_tostring(L,1));
if(eng){
PUSH_OBJECT((void*)eng,"openssl.engine");
}else
lua_pushnil(L);
return 1;
}
void
ca_engine_init(void)
{
ENGINE *e;
const char *errstr, *name;
if ((e = ENGINE_get_default_RSA()) == NULL) {
if ((e = ENGINE_new()) == NULL) {
errstr = "ENGINE_new";
goto fail;
}
if (!ENGINE_set_name(e, rsae_method.name)) {
errstr = "ENGINE_set_name";
goto fail;
}
if ((rsa_default = RSA_get_default_method()) == NULL) {
errstr = "RSA_get_default_method";
goto fail;
}
} else if ((rsa_default = ENGINE_get_RSA(e)) == NULL) {
errstr = "ENGINE_get_RSA";
goto fail;
}
if ((name = ENGINE_get_name(e)) == NULL)
name = "unknown RSA engine";
log_debug("debug: %s: using %s", __func__, name);
if (rsa_default->flags & RSA_FLAG_SIGN_VER)
fatalx("unsupported RSA engine");
if (rsa_default->rsa_mod_exp == NULL)
rsae_method.rsa_mod_exp = NULL;
if (rsa_default->bn_mod_exp == NULL)
rsae_method.bn_mod_exp = NULL;
if (rsa_default->rsa_keygen == NULL)
rsae_method.rsa_keygen = NULL;
rsae_method.flags = rsa_default->flags |
RSA_METHOD_FLAG_NO_CHECK;
rsae_method.app_data = rsa_default->app_data;
if (!ENGINE_set_RSA(e, &rsae_method)) {
errstr = "ENGINE_set_RSA";
goto fail;
}
if (!ENGINE_set_default_RSA(e)) {
errstr = "ENGINE_set_default_RSA";
goto fail;
}
return;
fail:
ssl_error(errstr);
fatalx("%s", errstr);
}
static ENGINE* LoadEngine()
{
// This function creates an engine for PKCS#11 and inspired by
// the "ENGINE_load_dynamic" function from OpenSSL, in file
// "crypto/engine/eng_dyn.c"
ENGINE* engine = ENGINE_new();
if (!engine)
{
LOG(ERROR) << "Cannot create an OpenSSL engine for PKCS#11";
throw OrthancException(ErrorCode_InternalError);
}
// Create a PKCS#11 context using libp11
context_ = pkcs11_new();
if (!context_)
{
LOG(ERROR) << "Cannot create a libp11 context for PKCS#11";
ENGINE_free(engine);
throw OrthancException(ErrorCode_InternalError);
}
if (!ENGINE_set_id(engine, PKCS11_ENGINE_ID) ||
!ENGINE_set_name(engine, PKCS11_ENGINE_NAME) ||
!ENGINE_set_cmd_defns(engine, PKCS11_ENGINE_COMMANDS) ||
// Register the callback functions
!ENGINE_set_init_function(engine, EngineInitialize) ||
!ENGINE_set_finish_function(engine, EngineFinalize) ||
!ENGINE_set_destroy_function(engine, EngineDestroy) ||
!ENGINE_set_ctrl_function(engine, EngineControl) ||
!ENGINE_set_load_pubkey_function(engine, EngineLoadPublicKey) ||
!ENGINE_set_load_privkey_function(engine, EngineLoadPrivateKey) ||
!ENGINE_set_RSA(engine, PKCS11_get_rsa_method()) ||
!ENGINE_set_ECDSA(engine, PKCS11_get_ecdsa_method()) ||
!ENGINE_set_ECDH(engine, PKCS11_get_ecdh_method()) ||
#if OPENSSL_VERSION_NUMBER >= 0x10100002L
!ENGINE_set_EC(engine, PKCS11_get_ec_key_method()) ||
#endif
// Make OpenSSL know about our PKCS#11 engine
!ENGINE_add(engine))
{
LOG(ERROR) << "Cannot initialize the OpenSSL engine for PKCS#11";
pkcs11_finish(context_);
ENGINE_free(engine);
throw OrthancException(ErrorCode_InternalError);
}
// If the "ENGINE_add" worked, it gets a structural
// reference. We release our just-created reference.
ENGINE_free(engine);
return ENGINE_by_id(PKCS11_ENGINE_ID);
}
isc_result_t
dst__openssl_init() {
isc_result_t result;
#ifdef DNS_CRYPTO_LEAKS
CRYPTO_malloc_debug_init();
CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
#endif
CRYPTO_set_mem_functions(mem_alloc, mem_realloc, mem_free);
nlocks = CRYPTO_num_locks();
locks = mem_alloc(sizeof(isc_mutex_t) * nlocks);
if (locks == NULL)
return (ISC_R_NOMEMORY);
result = isc_mutexblock_init(locks, nlocks);
if (result != ISC_R_SUCCESS)
goto cleanup_mutexalloc;
CRYPTO_set_locking_callback(lock_callback);
CRYPTO_set_id_callback(id_callback);
rm = mem_alloc(sizeof(RAND_METHOD));
if (rm == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup_mutexinit;
}
rm->seed = NULL;
rm->bytes = entropy_get;
rm->cleanup = NULL;
rm->add = entropy_add;
rm->pseudorand = entropy_getpseudo;
rm->status = entropy_status;
#ifdef USE_ENGINE
e = ENGINE_new();
if (e == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup_rm;
}
ENGINE_set_RAND(e, rm);
RAND_set_rand_method(rm);
#else
RAND_set_rand_method(rm);
#endif /* USE_ENGINE */
return (ISC_R_SUCCESS);
#ifdef USE_ENGINE
cleanup_rm:
mem_free(rm);
#endif
cleanup_mutexinit:
CRYPTO_set_locking_callback(NULL);
DESTROYMUTEXBLOCK(locks, nlocks);
cleanup_mutexalloc:
mem_free(locks);
return (result);
}
static ENGINE *engine_ossltest(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_ossltest(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *ENGINE_rdrand(void)
{
ENGINE *ret = ENGINE_new();
if (!ret)
return NULL;
if (!bind_helper(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_nuron(void)
{
ENGINE *ret = ENGINE_new();
if (!ret)
return NULL;
if (!bind_helper(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_openssl(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_helper(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_afalg(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_afalg(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_dasync(void)
{
ENGINE *ret = ENGINE_new();
if (!ret)
return NULL;
if (!bind_dasync(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_gost(void)
{
ENGINE *ret = ENGINE_new();
if (!ret)
return NULL;
if (!bind_gost(ret, engine_gost_id)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_sureware(void)
{
ENGINE *ret = ENGINE_new();
if(!ret)
return NULL;
if(!bind_sureware(ret))
{
ENGINE_free(ret);
return NULL;
}
return ret;
}
static ENGINE *engine_tpm(void)
{
ENGINE *ret = ENGINE_new();
DBG("%s", __FUNCTION__);
if (!ret)
return NULL;
if (!bind_helper(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
static VALUE
ossl_engine_s_alloc(VALUE klass)
{
ENGINE *e;
VALUE obj;
if (!(e = ENGINE_new())) {
ossl_raise(eEngineError, NULL);
}
WrapEngine(klass, obj, e);
return obj;
}
ENGINE* ENGINE_keystore() {
ALOGV("ENGINE_keystore");
Unique_ENGINE engine(ENGINE_new());
if (engine.get() == NULL) {
return NULL;
}
if (!keystore_engine_setup(engine.get())) {
return NULL;
}
return engine.release();
}
/* Constructor */
static ENGINE *ENGINE_padlock(void)
{
ENGINE *eng = ENGINE_new();
if (eng == NULL) {
return NULL;
}
if (!padlock_bind_helper(eng)) {
ENGINE_free(eng);
return NULL;
}
return eng;
}
/* As this is only ever called once, there's no need for locking
* (indeed - the lock will already be held by our caller!!!)
*/
static ENGINE *ENGINE_zencod ( void )
{
ENGINE *eng = ENGINE_new () ;
if ( !eng ) {
return NULL ;
}
if ( !bind_helper ( eng ) ) {
ENGINE_free ( eng ) ;
return NULL ;
}
return eng ;
}
static ENGINE *engine_hwdev(void)
{
fprintf(stderr, "arrive at engine_test\n");
ENGINE *ret = ENGINE_new();
if(!ret) {
return NULL;
}
if(!bind_helper(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
ENGINE *
ENGINE_by_id(const char *id)
{
ENGINE *iterator;
ENGINE *tmp;
tmp = engine_list_head;
while (tmp) {
printf("my engine iterator, id%s\n", tmp->id);
tmp = tmp->next;
}
printf("my engine, file:%s line:%d\n", __FILE__, __LINE__);
if (id == NULL) {
ENGINEerr(ENGINE_F_ENGINE_BY_ID,
ERR_R_PASSED_NULL_PARAMETER);
return NULL;
}
CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
printf("my engine, file:%s line:%d\n", __FILE__, __LINE__);
iterator = engine_list_head;
while (iterator && (strcmp(id, iterator->id) != 0) && printf("my engine iterator, id%s\n", iterator->id))
iterator = iterator->next;
if (iterator) {
/* We need to return a structural reference. If this is an
* ENGINE type that returns copies, make a duplicate - otherwise
* increment the existing ENGINE's reference count. */
if (iterator->flags & ENGINE_FLAGS_BY_ID_COPY) {
ENGINE *cp = ENGINE_new();
if (!cp)
iterator = NULL;
else {
engine_cpy(cp, iterator);
iterator = cp;
}
} else {
iterator->struct_ref++;
engine_ref_debug(iterator, 0, 1)
}
}
CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
printf("my engine, file:%s line:%d\n", __FILE__, __LINE__);
if (iterator == NULL) {
ENGINEerr(ENGINE_F_ENGINE_BY_ID, ENGINE_R_NO_SUCH_ENGINE);
ERR_asprintf_error_data("id=%s", id);
}
return iterator;
}
/* Constructor */
static ENGINE *
ENGINE_aesni(void)
{
ENGINE *eng = ENGINE_new();
if (!eng) {
return NULL;
}
if (!aesni_bind_helper(eng)) {
ENGINE_free(eng);
return NULL;
}
return eng;
}
/*
* This makes the engine "built-in" with OpenSSL.
* On non-T4 CPUs this just returns.
* Called by ENGINE_load_builtin_engines().
*/
void
ENGINE_load_t4(void)
{
#ifdef COMPILE_HW_T4
ENGINE *toadd = ENGINE_new();
if (toadd != NULL) {
if (t4_bind_helper(toadd, ENGINE_T4_ID) != 0) {
(void) ENGINE_add(toadd);
(void) ENGINE_free(toadd);
ERR_clear_error();
} else {
(void) ENGINE_free(toadd);
}
}
#endif
}
static ENGINE *engine_dynamic(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!ENGINE_set_id(ret, engine_dynamic_id) ||
!ENGINE_set_name(ret, engine_dynamic_name) ||
!ENGINE_set_init_function(ret, dynamic_init) ||
!ENGINE_set_finish_function(ret, dynamic_finish) ||
!ENGINE_set_ctrl_function(ret, dynamic_ctrl) ||
!ENGINE_set_flags(ret, ENGINE_FLAGS_BY_ID_COPY) ||
!ENGINE_set_cmd_defns(ret, dynamic_cmd_defns)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
/*
* 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();
}
static ENGINE *
sc_get_engine(void)
{
static ENGINE *smart_engine = NULL;
if ((smart_engine = ENGINE_new()) == NULL)
fatal("ENGINE_new failed");
ENGINE_set_id(smart_engine, "sectok");
ENGINE_set_name(smart_engine, "libsectok");
ENGINE_set_RSA(smart_engine, sc_get_rsa_method());
ENGINE_set_DSA(smart_engine, DSA_get_default_openssl_method());
ENGINE_set_DH(smart_engine, DH_get_default_openssl_method());
ENGINE_set_RAND(smart_engine, RAND_SSLeay());
ENGINE_set_BN_mod_exp(smart_engine, BN_mod_exp);
return smart_engine;
}
static ENGINE *engine_qat(void)
{
ENGINE *ret = NULL;
DEBUG("- Starting\n");
ret = ENGINE_new();
if (!ret) {
WARN("Failed to create Engine\n");
QATerr(QAT_F_ENGINE_QAT, QAT_R_QAT_CREATE_ENGINE_FAILURE);
return NULL;
}
if (!bind_qat(ret, engine_qat_id)) {
WARN("Qat engine bind failed\n");
ENGINE_free(ret);
return NULL;
}
return ret;
}
/* Returns 1 if successfully added, 2 if engine has previously been added,
and 0 for error. */
int Cryptography_add_osrandom_engine(void) {
ENGINE *e;
ERR_load_Cryptography_OSRandom_strings();
e = ENGINE_by_id(Cryptography_osrandom_engine_id);
if (e != NULL) {
ENGINE_free(e);
return 2;
} else {
ERR_clear_error();
}
e = ENGINE_new();
if (e == NULL) {
return 0;
}
if (!ENGINE_set_id(e, Cryptography_osrandom_engine_id) ||
!ENGINE_set_name(e, Cryptography_osrandom_engine_name) ||
!ENGINE_set_RAND(e, &osrandom_rand) ||
!ENGINE_set_init_function(e, osrandom_init) ||
!ENGINE_set_finish_function(e, osrandom_finish) ||
!ENGINE_set_cmd_defns(e, osrandom_cmd_defns) ||
!ENGINE_set_ctrl_function(e, osrandom_ctrl)) {
ENGINE_free(e);
return 0;
}
if (!ENGINE_add(e)) {
ENGINE_free(e);
return 0;
}
if (!ENGINE_free(e)) {
return 0;
}
return 1;
}
ENGINE *ENGINE_by_id(const char *id)
{
ENGINE *iterator;
char *load_dir = NULL;
if (id == NULL) {
ENGINEerr(ENGINE_F_ENGINE_BY_ID, ERR_R_PASSED_NULL_PARAMETER);
return NULL;
}
CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
iterator = engine_list_head;
while (iterator && (strcmp(id, iterator->id) != 0))
iterator = iterator->next;
if (iterator != NULL) {
/*
* We need to return a structural reference. If this is an ENGINE
* type that returns copies, make a duplicate - otherwise increment
* the existing ENGINE's reference count.
*/
if (iterator->flags & ENGINE_FLAGS_BY_ID_COPY) {
ENGINE *cp = ENGINE_new();
if (cp == NULL)
iterator = NULL;
else {
engine_cpy(cp, iterator);
iterator = cp;
}
} else {
iterator->struct_ref++;
engine_ref_debug(iterator, 0, 1);
}
}
CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
if (iterator != NULL)
return iterator;
/*
* Prevent infinite recursion if we're looking for the dynamic engine.
*/
if (strcmp(id, "dynamic")) {
# ifdef OPENSSL_SYS_VMS
if ((load_dir = getenv("OPENSSL_ENGINES")) == 0)
load_dir = "SSLROOT:[ENGINES]";
# else
if ((load_dir = getenv("OPENSSL_ENGINES")) == 0)
load_dir = ENGINESDIR;
# endif
iterator = ENGINE_by_id("dynamic");
if (!iterator || !ENGINE_ctrl_cmd_string(iterator, "ID", id, 0) ||
!ENGINE_ctrl_cmd_string(iterator, "DIR_LOAD", "2", 0) ||
!ENGINE_ctrl_cmd_string(iterator, "DIR_ADD",
load_dir, 0) ||
!ENGINE_ctrl_cmd_string(iterator, "LIST_ADD", "1", 0) ||
!ENGINE_ctrl_cmd_string(iterator, "LOAD", NULL, 0))
goto notfound;
return iterator;
}
notfound:
ENGINE_free(iterator);
ENGINEerr(ENGINE_F_ENGINE_BY_ID, ENGINE_R_NO_SUCH_ENGINE);
ERR_add_error_data(2, "id=", id);
return NULL;
/* EEK! Experimental code ends */
}
void
ENGINE_load_builtin_engines(void)
{
ENGINE *engine;
int ret;
engine = ENGINE_new();
if (engine == NULL)
return;
ENGINE_set_id(engine, "builtin");
ENGINE_set_name(engine,
"Heimdal crypto builtin (ltm) engine version " PACKAGE_VERSION);
ENGINE_set_RSA(engine, RSA_ltm_method());
ENGINE_set_DH(engine, DH_ltm_method());
ret = add_engine(engine);
if (ret != 1)
ENGINE_finish(engine);
#ifdef USE_HCRYPTO_TFM
/*
* TFM
*/
engine = ENGINE_new();
if (engine == NULL)
return;
ENGINE_set_id(engine, "tfm");
ENGINE_set_name(engine,
"Heimdal crypto tfm engine version " PACKAGE_VERSION);
ENGINE_set_RSA(engine, RSA_tfm_method());
ENGINE_set_DH(engine, DH_tfm_method());
ret = add_engine(engine);
if (ret != 1)
ENGINE_finish(engine);
#endif /* USE_HCRYPTO_TFM */
#ifdef USE_HCRYPTO_LTM
/*
* ltm
*/
engine = ENGINE_new();
if (engine == NULL)
return;
ENGINE_set_id(engine, "ltm");
ENGINE_set_name(engine,
"Heimdal crypto ltm engine version " PACKAGE_VERSION);
ENGINE_set_RSA(engine, RSA_ltm_method());
ENGINE_set_DH(engine, DH_ltm_method());
ret = add_engine(engine);
if (ret != 1)
ENGINE_finish(engine);
#endif
#ifdef HAVE_GMP
/*
* gmp
*/
engine = ENGINE_new();
if (engine == NULL)
return;
ENGINE_set_id(engine, "gmp");
ENGINE_set_name(engine,
"Heimdal crypto gmp engine version " PACKAGE_VERSION);
ENGINE_set_RSA(engine, RSA_gmp_method());
ret = add_engine(engine);
if (ret != 1)
ENGINE_finish(engine);
#endif
}
void
ENGINE_load_cryptodev(void)
{
ENGINE *engine = ENGINE_new();
int fd;
if (engine == NULL)
return;
if ((fd = get_dev_crypto()) < 0) {
ENGINE_free(engine);
return;
}
/*
* find out what asymmetric crypto algorithms we support
*/
if (ioctl(fd, CIOCASYMFEAT, &cryptodev_asymfeat) == -1) {
close(fd);
ENGINE_free(engine);
return;
}
close(fd);
if (!ENGINE_set_id(engine, "cryptodev") ||
!ENGINE_set_name(engine, "BSD cryptodev engine") ||
!ENGINE_set_ciphers(engine, cryptodev_engine_ciphers) ||
!ENGINE_set_digests(engine, cryptodev_engine_digests) ||
!ENGINE_set_ctrl_function(engine, cryptodev_ctrl) ||
!ENGINE_set_cmd_defns(engine, cryptodev_defns)) {
ENGINE_free(engine);
return;
}
if (ENGINE_set_RSA(engine, &cryptodev_rsa)) {
const RSA_METHOD *rsa_meth = RSA_PKCS1_SSLeay();
cryptodev_rsa.bn_mod_exp = rsa_meth->bn_mod_exp;
cryptodev_rsa.rsa_mod_exp = rsa_meth->rsa_mod_exp;
cryptodev_rsa.rsa_pub_enc = rsa_meth->rsa_pub_enc;
cryptodev_rsa.rsa_pub_dec = rsa_meth->rsa_pub_dec;
cryptodev_rsa.rsa_priv_enc = rsa_meth->rsa_priv_enc;
cryptodev_rsa.rsa_priv_dec = rsa_meth->rsa_priv_dec;
if (cryptodev_asymfeat & CRF_MOD_EXP) {
cryptodev_rsa.bn_mod_exp = cryptodev_bn_mod_exp;
if (cryptodev_asymfeat & CRF_MOD_EXP_CRT)
cryptodev_rsa.rsa_mod_exp =
cryptodev_rsa_mod_exp;
else
cryptodev_rsa.rsa_mod_exp =
cryptodev_rsa_nocrt_mod_exp;
}
}
if (ENGINE_set_DSA(engine, &cryptodev_dsa)) {
const DSA_METHOD *meth = DSA_OpenSSL();
memcpy(&cryptodev_dsa, meth, sizeof(DSA_METHOD));
if (cryptodev_asymfeat & CRF_DSA_SIGN)
cryptodev_dsa.dsa_do_sign = cryptodev_dsa_do_sign;
if (cryptodev_asymfeat & CRF_MOD_EXP) {
cryptodev_dsa.bn_mod_exp = cryptodev_dsa_bn_mod_exp;
cryptodev_dsa.dsa_mod_exp = cryptodev_dsa_dsa_mod_exp;
}
if (cryptodev_asymfeat & CRF_DSA_VERIFY)
cryptodev_dsa.dsa_do_verify = cryptodev_dsa_verify;
}
if (ENGINE_set_DH(engine, &cryptodev_dh)){
const DH_METHOD *dh_meth = DH_OpenSSL();
cryptodev_dh.generate_key = dh_meth->generate_key;
cryptodev_dh.compute_key = dh_meth->compute_key;
cryptodev_dh.bn_mod_exp = dh_meth->bn_mod_exp;
if (cryptodev_asymfeat & CRF_MOD_EXP) {
cryptodev_dh.bn_mod_exp = cryptodev_mod_exp_dh;
if (cryptodev_asymfeat & CRF_DH_COMPUTE_KEY)
cryptodev_dh.compute_key =
cryptodev_dh_compute_key;
}
}
ENGINE_add(engine);
ENGINE_free(engine);
ERR_clear_error();
}