indentation.

[openssl.git] / crypto / dh / dh_lib.c

diff --git a/crypto/dh/dh_lib.c b/crypto/dh/dh_lib.c
index dcd93c19a955bf44fab7e6d4eaa48fcab3ae42f0..367c19dfe98f689b00695ffbd2c1045ba4c8c157 100644 (file)
--- a/crypto/dh/dh_lib.c
+++ b/crypto/dh/dh_lib.c
@@ -65,100 +65,68 @@
 const char *DH_version="Diffie-Hellman" OPENSSL_VERSION_PTEXT;
 
 static const DH_METHOD *default_DH_method = NULL;
-static int dh_meth_num = 0;
-static STACK_OF(CRYPTO_EX_DATA_FUNCS) *dh_meth = NULL;
-
-void DH_set_default_openssl_method(const DH_METHOD *meth)
-{
-       ENGINE *e;
-       /* We'll need to notify the "openssl" ENGINE of this
-        * change too. We won't bother locking things down at
-        * our end as there was never any locking in these
-        * functions! */
-       if(default_DH_method != meth)
-               {
-               default_DH_method = meth;
-               e = ENGINE_by_id("openssl");
-               if(e)
-                       {
-                       ENGINE_set_DH(e, meth);
-                       ENGINE_free(e);
-                       }
-               }
-}
 
-const DH_METHOD *DH_get_default_openssl_method(void)
-{
-       if(!default_DH_method) default_DH_method = DH_OpenSSL();
+void DH_set_default_method(const DH_METHOD *meth)
+       {
+       default_DH_method = meth;
+       }
+
+const DH_METHOD *DH_get_default_method(void)
+       {
+       if(!default_DH_method)
+               default_DH_method = DH_OpenSSL();
        return default_DH_method;
-}
+       }
 
-#if 0
-DH_METHOD *DH_set_method(DH *dh, DH_METHOD *meth)
-{
-        DH_METHOD *mtmp;
+int DH_set_method(DH *dh, const DH_METHOD *meth)
+       {
+       /* NB: The caller is specifically setting a method, so it's not up to us
+        * to deal with which ENGINE it comes from. */
+        const DH_METHOD *mtmp;
         mtmp = dh->meth;
         if (mtmp->finish) mtmp->finish(dh);
+       if (dh->engine)
+               {
+               ENGINE_finish(dh->engine);
+               dh->engine = NULL;
+               }
         dh->meth = meth;
         if (meth->init) meth->init(dh);
-        return mtmp;
-}
-#else
-int DH_set_method(DH *dh, ENGINE *engine)
-{
-       ENGINE *mtmp;
-       const DH_METHOD *meth;
-       mtmp = dh->engine;
-       meth = ENGINE_get_DH(mtmp);
-       if (!ENGINE_init(engine))
-               return 0;
-       if (meth->finish) meth->finish(dh);
-       dh->engine= engine;
-       meth = ENGINE_get_DH(engine);
-       if (meth->init) meth->init(dh);
-       /* SHOULD ERROR CHECK THIS!!! */
-       ENGINE_finish(mtmp);
-       return 1;
-}
-#endif
+        return 1;
+       }
 
 DH *DH_new(void)
-{
+       {
        return DH_new_method(NULL);
-}
+       }
 
-#if 0
-DH *DH_new_method(DH_METHOD *meth)
-#else
 DH *DH_new_method(ENGINE *engine)
-#endif
        {
-       const DH_METHOD *meth;
        DH *ret;
-       ret=(DH *)OPENSSL_malloc(sizeof(DH));
 
+       ret=(DH *)OPENSSL_malloc(sizeof(DH));
        if (ret == NULL)
                {
                DHerr(DH_F_DH_NEW,ERR_R_MALLOC_FAILURE);
                return(NULL);
                }
 
-       if (engine)
-               {
-               if(ENGINE_init(engine))
-                       ret->engine = engine;
-               else 
-                       ret->engine = NULL;
-               }
-       else
-               ret->engine=ENGINE_get_default_DH();
-       if(ret->engine == NULL)
+       ret->meth = DH_get_default_method();
+       ret->engine = engine;
+       if(!ret->engine)
+               ret->engine = ENGINE_get_default_DH();
+       if(ret->engine)
                {
-               DHerr(DH_F_DH_NEW,ERR_LIB_ENGINE);
-               OPENSSL_free(ret);
-               return NULL;
+               ret->meth = ENGINE_get_DH(ret->engine);
+               if(!ret->meth)
+                       {
+                       DHerr(DH_F_DH_NEW,ERR_R_ENGINE_LIB);
+                       ENGINE_finish(ret->engine);
+                       OPENSSL_free(ret);
+                       return NULL;
+                       }
                }
-       meth = ENGINE_get_DH(ret->engine);
+
        ret->pad=0;
        ret->version=0;
        ret->p=NULL;
@@ -173,11 +141,11 @@ DH *DH_new_method(ENGINE *engine)
        ret->counter = NULL;
        ret->method_mont_p=NULL;
        ret->references = 1;
-       ret->flags=meth->flags;
-       CRYPTO_new_ex_data(dh_meth,ret,&ret->ex_data);
-       if ((meth->init != NULL) && !meth->init(ret))
+       ret->flags=ret->meth->flags;
+       CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data);
+       if ((ret->meth->init != NULL) && !ret->meth->init(ret))
                {
-               CRYPTO_free_ex_data(dh_meth,ret,&ret->ex_data);
+               CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data);
                OPENSSL_free(ret);
                ret=NULL;
                }
@@ -186,7 +154,6 @@ DH *DH_new_method(ENGINE *engine)
 
 void DH_free(DH *r)
        {
-       const DH_METHOD *meth;
        int i;
        if(r == NULL) return;
        i = CRYPTO_add(&r->references, -1, CRYPTO_LOCK_DH);
@@ -202,11 +169,12 @@ void DH_free(DH *r)
        }
 #endif
 
-       meth = ENGINE_get_DH(r->engine);
-       if(meth->finish) meth->finish(r);
-       ENGINE_finish(r->engine);
+       if (r->meth->finish)
+               r->meth->finish(r);
+       if (r->engine)
+               ENGINE_finish(r->engine);
 
-       CRYPTO_free_ex_data(dh_meth, r, &r->ex_data);
+       CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, r, &r->ex_data);
 
        if (r->p != NULL) BN_clear_free(r->p);
        if (r->g != NULL) BN_clear_free(r->g);
@@ -219,12 +187,27 @@ void DH_free(DH *r)
        OPENSSL_free(r);
        }
 
+int DH_up_ref(DH *r)
+       {
+       int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_DH);
+#ifdef REF_PRINT
+       REF_PRINT("DH",r);
+#endif
+#ifdef REF_CHECK
+       if (i < 2)
+               {
+               fprintf(stderr, "DH_up, bad reference count\n");
+               abort();
+               }
+#endif
+       return ((i > 1) ? 1 : 0);
+       }
+
 int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
             CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
         {
-       dh_meth_num++;
-       return(CRYPTO_get_ex_new_index(dh_meth_num-1,
-               &dh_meth,argl,argp,new_func,dup_func,free_func));
+       return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DH, argl, argp,
+                               new_func, dup_func, free_func);
         }
 
 int DH_set_ex_data(DH *d, int idx, void *arg)