X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fdsa%2Fdsa_lib.c;h=be30d18b8a05ee45c62295aab3909378befe05fe;hp=1bd89ae4c3895e5434a5c11220f35ffc2f802967;hb=26a3a48d65c7464b400ec1de439994d7f0d25fed;hpb=6b691a5c85ddc4e407e32781841fee5c029506cd

diff --git a/crypto/dsa/dsa_lib.c b/crypto/dsa/dsa_lib.c
index 1bd89ae4c3..be30d18b8a 100644
--- a/crypto/dsa/dsa_lib.c
+++ b/crypto/dsa/dsa_lib.c
@@ -60,29 +60,61 @@
 
 #include <stdio.h>
 #include "cryptlib.h"
-#include "bn.h"
-#include "dsa.h"
-#include "asn1.h"
+#include <openssl/bn.h>
+#include <openssl/dsa.h>
+#include <openssl/asn1.h>
 
 const char *DSA_version="DSA" OPENSSL_VERSION_PTEXT;
 
+static DSA_METHOD *default_DSA_method;
+static int dsa_meth_num = 0;
+static STACK_OF(CRYPTO_EX_DATA_FUNCS) *dsa_meth = NULL;
+
+void DSA_set_default_method(DSA_METHOD *meth)
+{
+	default_DSA_method = meth;
+}
+
+DSA_METHOD *DSA_get_default_method(void)
+{
+	if(!default_DSA_method) default_DSA_method = DSA_OpenSSL();
+	return default_DSA_method;
+}
+
 DSA *DSA_new(void)
+{
+	return DSA_new_method(NULL);
+}
+
+DSA_METHOD *DSA_set_method(DSA *dsa, DSA_METHOD *meth)
+{
+        DSA_METHOD *mtmp;
+        mtmp = dsa->meth;
+        if (mtmp->finish) mtmp->finish(dsa);
+        dsa->meth = meth;
+        if (meth->init) meth->init(dsa);
+        return mtmp;
+}
+
+
+DSA *DSA_new_method(DSA_METHOD *meth)
 	{
 	DSA *ret;
 
-	ret=(DSA *)Malloc(sizeof(DSA));
+	ret=(DSA *)OPENSSL_malloc(sizeof(DSA));
 	if (ret == NULL)
 		{
 		DSAerr(DSA_F_DSA_NEW,ERR_R_MALLOC_FAILURE);
 		return(NULL);
 		}
+	if(meth) ret->meth = meth;
+	else ret->meth = DSA_get_default_method();
 	ret->pad=0;
 	ret->version=0;
 	ret->write_params=1;
 	ret->p=NULL;
 	ret->q=NULL;
 	ret->g=NULL;
-	ret->flags=DSA_FLAG_CACHE_MONT_P;
 
 	ret->pub_key=NULL;
 	ret->priv_key=NULL;
@@ -92,6 +124,15 @@ DSA *DSA_new(void)
 	ret->method_mont_p=NULL;
 
 	ret->references=1;
+	ret->flags=ret->meth->flags;
+	if ((ret->meth->init != NULL) && !ret->meth->init(ret))
+		{
+		OPENSSL_free(ret);
+		ret=NULL;
+		}
+	else
+		CRYPTO_new_ex_data(dsa_meth,ret,&ret->ex_data);
+	
 	return(ret);
 	}
 
@@ -114,6 +155,10 @@ void DSA_free(DSA *r)
 		}
 #endif
 
+	CRYPTO_free_ex_data(dsa_meth, r, &r->ex_data);
+
+	if(r->meth->finish) r->meth->finish(r);
+
 	if (r->p != NULL) BN_clear_free(r->p);
 	if (r->q != NULL) BN_clear_free(r->q);
 	if (r->g != NULL) BN_clear_free(r->g);
@@ -121,9 +166,7 @@ void DSA_free(DSA *r)
 	if (r->priv_key != NULL) BN_clear_free(r->priv_key);
 	if (r->kinv != NULL) BN_clear_free(r->kinv);
 	if (r->r != NULL) BN_clear_free(r->r);
-	if (r->method_mont_p != NULL)
-		BN_MONT_CTX_free((BN_MONT_CTX *)r->method_mont_p);
-	Free(r);
+	OPENSSL_free(r);
 	}
 
 int DSA_size(DSA *r)
@@ -145,3 +188,58 @@ int DSA_size(DSA *r)
 	return(ret);
 	}
 
+int DSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
+        {
+	dsa_meth_num++;
+	return(CRYPTO_get_ex_new_index(dsa_meth_num-1,
+		&dsa_meth,argl,argp,new_func,dup_func,free_func));
+        }
+
+int DSA_set_ex_data(DSA *d, int idx, void *arg)
+	{
+	return(CRYPTO_set_ex_data(&d->ex_data,idx,arg));
+	}
+
+void *DSA_get_ex_data(DSA *d, int idx)
+	{
+	return(CRYPTO_get_ex_data(&d->ex_data,idx));
+	}
+
+#ifndef NO_DH
+DH *DSA_dup_DH(DSA *r)
+	{
+	/* DSA has p, q, g, optional pub_key, optional priv_key.
+	 * DH has p, optional length, g, optional pub_key, optional priv_key.
+	 */ 
+
+	DH *ret = NULL;
+
+	if (r == NULL)
+		goto err;
+	ret = DH_new();
+	if (ret == NULL)
+		goto err;
+	if (r->p != NULL) 
+		if ((ret->p = BN_dup(r->p)) == NULL)
+			goto err;
+	if (r->q != NULL)
+		ret->length = BN_num_bits(r->q);
+	if (r->g != NULL)
+		if ((ret->g = BN_dup(r->g)) == NULL)
+			goto err;
+	if (r->pub_key != NULL)
+		if ((ret->pub_key = BN_dup(r->pub_key)) == NULL)
+			goto err;
+	if (r->priv_key != NULL)
+		if ((ret->priv_key = BN_dup(r->priv_key)) == NULL)
+			goto err;
+
+	return ret;
+
+ err:
+	if (ret != NULL)
+		DH_free(ret);
+	return NULL;
+	}
+#endif