Check for OPENSSL_NO_RSA, OPENSSL_NO_DSA and OPENSSL_NO_DH and disable

[openssl.git] / crypto / engine / hw_nuron.c

diff --git a/crypto/engine/hw_nuron.c b/crypto/engine/hw_nuron.c
index d5697dade667904b2b11870d7642c7bf96469d97..06eafa7176fbbfb6ca6b0a9d4bc73d86616f5379 100644 (file)
--- a/crypto/engine/hw_nuron.c
+++ b/crypto/engine/hw_nuron.c
@@ -164,11 +164,14 @@ static int nuron_mod_exp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,
        return pfnModExp(r,a,p,m);
        }
 
+#ifndef OPENSSL_NO_RSA
 static int nuron_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
        {
        return nuron_mod_exp(r0,I,rsa->d,rsa->n,NULL);
        }
+#endif
 
+#ifndef OPENSSL_NO_DSA
 /* This code was liberated and adapted from the commented-out code in
  * dsa_ossl.c. Because of the unoptimised form of the Atalla acceleration
  * (it doesn't have a CRT form for RSA), this function means that an
@@ -206,6 +209,7 @@ static int nuron_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
        {
        return nuron_mod_exp(r, a, p, m, ctx);
        }
+#endif
 
 /* This function is aliased to mod_exp (with the mont stuff dropped). */
 static int nuron_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
@@ -214,6 +218,7 @@ static int nuron_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
        return nuron_mod_exp(r, a, p, m, ctx);
        }
 
+#ifndef OPENSSL_NO_DH
 /* This function is aliased to mod_exp (with the dh and mont dropped). */
 static int nuron_mod_exp_dh(const DH *dh, BIGNUM *r,
                const BIGNUM *a, const BIGNUM *p,
@@ -221,7 +226,9 @@ static int nuron_mod_exp_dh(const DH *dh, BIGNUM *r,
        {
        return nuron_mod_exp(r, a, p, m, ctx);
        }
+#endif
 
+#ifndef OPENSSL_NO_RSA
 static RSA_METHOD nuron_rsa =
        {
        "Nuron RSA method",
@@ -238,7 +245,9 @@ static RSA_METHOD nuron_rsa =
        NULL,
        NULL
        };
+#endif
 
+#ifndef OPENSSL_NO_DSA
 static DSA_METHOD nuron_dsa =
        {
        "Nuron DSA method",
@@ -252,7 +261,9 @@ static DSA_METHOD nuron_dsa =
        0, /* flags */
        NULL /* app_data */
        };
+#endif
 
+#ifndef OPENSSL_NO_DH
 static DH_METHOD nuron_dh =
        {
        "Nuron DH method",
@@ -264,6 +275,7 @@ static DH_METHOD nuron_dh =
        0,
        NULL
        };
+#endif
 
 /* Constants used when creating the ENGINE */
 static const char *engine_nuron_id = "nuron";
@@ -273,17 +285,29 @@ static const char *engine_nuron_name = "Nuron hardware engine support";
  * (indeed - the lock will already be held by our caller!!!) */
 ENGINE *ENGINE_nuron()
        {
+#ifndef OPENSSL_NO_RSA
        const RSA_METHOD *meth1;
+#endif
+#ifndef OPENSSL_NO_DSA
        const DSA_METHOD *meth2;
+#endif
+#ifndef OPENSSL_NO_DH
        const DH_METHOD *meth3;
+#endif
        ENGINE *ret = ENGINE_new();
        if(!ret)
                return NULL;
        if(!ENGINE_set_id(ret, engine_nuron_id) ||
                        !ENGINE_set_name(ret, engine_nuron_name) ||
+#ifndef OPENSSL_NO_RSA
                        !ENGINE_set_RSA(ret, &nuron_rsa) ||
+#endif
+#ifndef OPENSSL_NO_DSA
                        !ENGINE_set_DSA(ret, &nuron_dsa) ||
+#endif
+#ifndef OPENSSL_NO_DH
                        !ENGINE_set_DH(ret, &nuron_dh) ||
+#endif
                        !ENGINE_set_BN_mod_exp(ret, nuron_mod_exp) ||
                        !ENGINE_set_init_function(ret, nuron_init) ||
                        !ENGINE_set_finish_function(ret, nuron_finish) ||
@@ -294,6 +318,7 @@ ENGINE *ENGINE_nuron()
                return NULL;
                }
 
+#ifndef OPENSSL_NO_RSA
        /* We know that the "PKCS1_SSLeay()" functions hook properly
         * to the nuron-specific mod_exp and mod_exp_crt so we use
         * those functions. NB: We don't use ENGINE_openssl() or
@@ -306,18 +331,23 @@ ENGINE *ENGINE_nuron()
        nuron_rsa.rsa_pub_dec=meth1->rsa_pub_dec;
        nuron_rsa.rsa_priv_enc=meth1->rsa_priv_enc;
        nuron_rsa.rsa_priv_dec=meth1->rsa_priv_dec;
+#endif
 
+#ifndef OPENSSL_NO_DSA
        /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
         * bits. */
        meth2=DSA_OpenSSL();
        nuron_dsa.dsa_do_sign=meth2->dsa_do_sign;
        nuron_dsa.dsa_sign_setup=meth2->dsa_sign_setup;
        nuron_dsa.dsa_do_verify=meth2->dsa_do_verify;
+#endif
 
+#ifndef OPENSSL_NO_DH
        /* Much the same for Diffie-Hellman */
        meth3=DH_OpenSSL();
        nuron_dh.generate_key=meth3->generate_key;
        nuron_dh.compute_key=meth3->compute_key;
+#endif
        return ret;
        }