Rename OPENSSL_CTX prefix to OSSL_LIB_CTX

[thirdparty/openssl.git] / crypto / evp / names.c

diff --git a/crypto/evp/names.c b/crypto/evp/names.c
index 82db98a1f200c96aab9b962b6d436d2e72f1bd49..07fda004dc1ec42b01593626e6cf016ce9183bad 100644 (file)
--- a/crypto/evp/names.c
+++ b/crypto/evp/names.c
@@ -8,12 +8,13 @@
  */
 
 #include <stdio.h>
-#include "internal/cryptlib.h"
 #include <openssl/evp.h>
 #include <openssl/kdf.h>
-#include "internal/objects.h"
 #include <openssl/x509.h>
-#include "internal/evp_int.h"
+#include "internal/cryptlib.h"
+#include "internal/namemap.h"
+#include "crypto/objects.h"
+#include "crypto/evp.h"
 
 int EVP_add_cipher(const EVP_CIPHER *c)
 {
@@ -56,55 +57,95 @@ int EVP_add_digest(const EVP_MD *md)
     return r;
 }
 
-/* TODO(3.0) Is this needed after changing to providers? */
-int EVP_add_kdf(const EVP_KDF *k)
+static void cipher_from_name(const char *name, void *data)
 {
-    int r;
+    const EVP_CIPHER **cipher = data;
 
-    if (k == NULL)
-        return 0;
+    if (*cipher != NULL)
+        return;
 
-    r = OBJ_NAME_add(OBJ_nid2sn(k->type), OBJ_NAME_TYPE_KDF_METH,
-                     (const char *)k);
-    if (r == 0)
-        return 0;
-    r = OBJ_NAME_add(OBJ_nid2ln(k->type), OBJ_NAME_TYPE_KDF_METH,
-                     (const char *)k);
-    return r;
+    *cipher = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
 }
 
 const EVP_CIPHER *EVP_get_cipherbyname(const char *name)
+{
+    return evp_get_cipherbyname_ex(NULL, name);
+}
+
+const EVP_CIPHER *evp_get_cipherbyname_ex(OSSL_LIB_CTX *libctx,
+                                          const char *name)
 {
     const EVP_CIPHER *cp;
+    OSSL_NAMEMAP *namemap;
+    int id;
 
     if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL))
         return NULL;
 
     cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
+
+    if (cp != NULL)
+        return cp;
+
+    /*
+     * It's not in the method database, but it might be there under a different
+     * name. So we check for aliases in the EVP namemap and try all of those
+     * in turn.
+     */
+
+    namemap = ossl_namemap_stored(libctx);
+    id = ossl_namemap_name2num(namemap, name);
+    if (id == 0)
+        return NULL;
+
+    ossl_namemap_doall_names(namemap, id, cipher_from_name, &cp);
+
     return cp;
 }
 
+static void digest_from_name(const char *name, void *data)
+{
+    const EVP_MD **md = data;
+
+    if (*md != NULL)
+        return;
+
+    *md = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
+}
+
 const EVP_MD *EVP_get_digestbyname(const char *name)
 {
-    const EVP_MD *cp;
+    return evp_get_digestbyname_ex(NULL, name);
+}
+
+const EVP_MD *evp_get_digestbyname_ex(OSSL_LIB_CTX *libctx, const char *name)
+{
+    const EVP_MD *dp;
+    OSSL_NAMEMAP *namemap;
+    int id;
 
     if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL))
         return NULL;
 
-    cp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
-    return cp;
-}
+    dp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
 
-/* TODO(3.0) Is this API needed after implementing providers? */
-const EVP_KDF *EVP_get_kdfbyname(const char *name)
-{
-    const EVP_KDF *kdf;
+    if (dp != NULL)
+        return dp;
 
-    if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_KDFS, NULL))
+    /*
+     * It's not in the method database, but it might be there under a different
+     * name. So we check for aliases in the EVP namemap and try all of those
+     * in turn.
+     */
+
+    namemap = ossl_namemap_stored(libctx);
+    id = ossl_namemap_name2num(namemap, name);
+    if (id == 0)
         return NULL;
 
-    kdf = (const EVP_KDF *)OBJ_NAME_get(name, OBJ_NAME_TYPE_KDF_METH);
-    return kdf;
+    ossl_namemap_doall_names(namemap, id, digest_from_name, &dp);
+
+    return dp;
 }
 
 void evp_cleanup_int(void)