Make the definition of EVP_MD_CTX opaque

[openssl.git] / crypto / evp / evp_lib.c

diff --git a/crypto/evp/evp_lib.c b/crypto/evp/evp_lib.c
index 966d9fb2722778aa6cdbaea96f2517240e0ddf80..6f2b077c2dee787d43d98d7c2a815d695d3fbaf8 100644 (file)
--- a/crypto/evp/evp_lib.c
+++ b/crypto/evp/evp_lib.c
@@ -57,9 +57,10 @@
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
 #include <openssl/evp.h>
 #include <openssl/objects.h>
+#include "evp_locl.h"
 
 int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
 {
@@ -68,11 +69,23 @@ int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
     if (c->cipher->set_asn1_parameters != NULL)
         ret = c->cipher->set_asn1_parameters(c, type);
     else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
-        if (EVP_CIPHER_CTX_mode(c) == EVP_CIPH_WRAP_MODE) {
-            ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
+        switch (EVP_CIPHER_CTX_mode(c)) {
+        case EVP_CIPH_WRAP_MODE:
+            if (EVP_CIPHER_CTX_nid(c) == NID_id_smime_alg_CMS3DESwrap)
+                ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
             ret = 1;
-        } else
+            break;
+
+        case EVP_CIPH_GCM_MODE:
+        case EVP_CIPH_CCM_MODE:
+        case EVP_CIPH_XTS_MODE:
+        case EVP_CIPH_OCB_MODE:
+            ret = -1;
+            break;
+
+        default:
             ret = EVP_CIPHER_set_asn1_iv(c, type);
+        }
     } else
         ret = -1;
     return (ret);
@@ -85,9 +98,23 @@ int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
     if (c->cipher->get_asn1_parameters != NULL)
         ret = c->cipher->get_asn1_parameters(c, type);
     else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
-        if (EVP_CIPHER_CTX_mode(c) == EVP_CIPH_WRAP_MODE)
-            return 1;
-        ret = EVP_CIPHER_get_asn1_iv(c, type);
+        switch (EVP_CIPHER_CTX_mode(c)) {
+
+        case EVP_CIPH_WRAP_MODE:
+            ret = 1;
+            break;
+
+        case EVP_CIPH_GCM_MODE:
+        case EVP_CIPH_CCM_MODE:
+        case EVP_CIPH_XTS_MODE:
+        case EVP_CIPH_OCB_MODE:
+            ret = -1;
+            break;
+
+        default:
+            ret = EVP_CIPHER_get_asn1_iv(c, type);
+            break;
+        }
     } else
         ret = -1;
     return (ret);
@@ -176,7 +203,7 @@ int EVP_CIPHER_type(const EVP_CIPHER *ctx)
     default:
         /* Check it has an OID and it is valid */
         otmp = OBJ_nid2obj(nid);
-        if (!otmp || !otmp->data)
+        if (OBJ_get0_data(otmp) == NULL)
             nid = NID_undef;
         ASN1_OBJECT_free(otmp);
         return nid;
@@ -290,6 +317,29 @@ const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
     return ctx->digest;
 }
 
+EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
+{
+    return ctx->pctx;
+}
+
+void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
+{
+    return ctx->md_data;
+}
+
+int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
+                                             const void *data, size_t count)
+{
+    return ctx->update;
+}
+
+void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
+                              int (*update) (EVP_MD_CTX *ctx,
+                                             const void *data, size_t count))
+{
+    ctx->update = update;
+}
+
 void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
 {
     ctx->flags |= flags;