1 files changed, 163 insertions, 13 deletions

diff --git a/src/lib/libcrypto/dsa/dsa_lib.c b/src/lib/libcrypto/dsa/dsa_lib.c
index b647257f9f..da2cdfa3d6 100644
--- a/src/lib/libcrypto/dsa/dsa_lib.c
+++ b/src/lib/libcrypto/dsa/dsa_lib.c
@@ -56,26 +56,89 @@
  * [including the GNU Public Licence.]
  */
 
-/* Origional version from Steven Schoch <schoch@sheba.arc.nasa.gov> */
+/* Original version from Steven Schoch <schoch@sheba.arc.nasa.gov> */
 
 #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>
+#include <openssl/engine.h>
 
-char *DSA_version="\0DSA part of SSLeay 0.9.0b 29-Jun-1998";
+const char *DSA_version="DSA" OPENSSL_VERSION_PTEXT;
 
-DSA *DSA_new()
+static const DSA_METHOD *default_DSA_method = NULL;
+
+void DSA_set_default_method(const DSA_METHOD *meth)
+        {
+        default_DSA_method = meth;
+        }
+
+const 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);
+        }
+
+int DSA_set_method(DSA *dsa, const DSA_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 DSA_METHOD *mtmp;
+        mtmp = dsa->meth;
+        if (mtmp->finish) mtmp->finish(dsa);
+        if (dsa->engine)
+                {
+                ENGINE_finish(dsa->engine);
+                dsa->engine = NULL;
+                }
+        dsa->meth = meth;
+        if (meth->init) meth->init(dsa);
+        return 1;
+        }
+
+DSA *DSA_new_method(ENGINE *engine)
         {
         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);
+                DSAerr(DSA_F_DSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
                 return(NULL);
                 }
+        ret->meth = DSA_get_default_method();
+        if (engine)
+                {
+                if (!ENGINE_init(engine))
+                        {
+                        DSAerr(DSA_F_DSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+                        OPENSSL_free(ret);
+                        return NULL;
+                        }
+                ret->engine = engine;
+                }
+        else
+                ret->engine = ENGINE_get_default_DSA();
+        if(ret->engine)
+                {
+                ret->meth = ENGINE_get_DSA(ret->engine);
+                if(!ret->meth)
+                        {
+                        DSAerr(DSA_F_DSA_NEW_METHOD,
+                                ERR_R_ENGINE_LIB);
+                        ENGINE_finish(ret->engine);
+                        OPENSSL_free(ret);
+                        return NULL;
+                        }
+                }
+
         ret->pad=0;
         ret->version=0;
         ret->write_params=1;
@@ -88,13 +151,24 @@ DSA *DSA_new()
 
         ret->kinv=NULL;
         ret->r=NULL;
+        ret->method_mont_p=NULL;
 
         ret->references=1;
+        ret->flags=ret->meth->flags;
+        CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DSA, ret, &ret->ex_data);
+        if ((ret->meth->init != NULL) && !ret->meth->init(ret))
+                {
+                if (ret->engine)
+                        ENGINE_finish(ret->engine);
+                CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DSA, ret, &ret->ex_data);
+                OPENSSL_free(ret);
+                ret=NULL;
+                }
+        
         return(ret);
         }
 
-void DSA_free(r)
-DSA *r;
+void DSA_free(DSA *r)
         {
         int i;
 
@@ -113,6 +187,13 @@ DSA *r;
                 }
 #endif
 
+        if(r->meth->finish)
+                r->meth->finish(r);
+        if(r->engine)
+                ENGINE_finish(r->engine);
+
+        CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DSA, r, &r->ex_data);
+
         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);
@@ -120,11 +201,26 @@ 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);
-        Free(r);
+        OPENSSL_free(r);
+        }
+
+int DSA_up_ref(DSA *r)
+        {
+        int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_DSA);
+#ifdef REF_PRINT
+        REF_PRINT("DSA",r);
+#endif
+#ifdef REF_CHECK
+        if (i < 2)
+                {
+                fprintf(stderr, "DSA_up_ref, bad reference count\n");
+                abort();
+                }
+#endif
+        return ((i > 1) ? 1 : 0);
         }
 
-int DSA_size(r)
-DSA *r;
+int DSA_size(const DSA *r)
         {
         int ret,i;
         ASN1_INTEGER bs;
@@ -143,3 +239,57 @@ 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)
+        {
+        return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DSA, 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 OPENSSL_NO_DH
+DH *DSA_dup_DH(const 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