--- /dev/null
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include "eng_int.h"
+#include <openssl/evp.h>
+
+/* If this symbol is defined then ENGINE_get_pkey_meth_engine(), the function
+ * that is used by EVP to hook in pkey_meth code and cache defaults (etc), will
+ * display brief debugging summaries to stderr with the 'nid'. */
+/* #define ENGINE_PKEY_METH_DEBUG */
+
+static ENGINE_TABLE *pkey_meth_table = NULL;
+
+void ENGINE_unregister_pkey_meths(ENGINE *e)
+ {
+ engine_table_unregister(&pkey_meth_table, e);
+ }
+
+static void engine_unregister_all_pkey_meths(void)
+ {
+ engine_table_cleanup(&pkey_meth_table);
+ }
+
+int ENGINE_register_pkey_meths(ENGINE *e)
+ {
+ if(e->pkey_meths)
+ {
+ const int *nids;
+ int num_nids = e->pkey_meths(e, NULL, &nids, 0);
+ if(num_nids > 0)
+ return engine_table_register(&pkey_meth_table,
+ engine_unregister_all_pkey_meths, e, nids,
+ num_nids, 0);
+ }
+ return 1;
+ }
+
+void ENGINE_register_all_pkey_meths()
+ {
+ ENGINE *e;
+
+ for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
+ ENGINE_register_pkey_meths(e);
+ }
+
+int ENGINE_set_default_pkey_meths(ENGINE *e)
+ {
+ if(e->pkey_meths)
+ {
+ const int *nids;
+ int num_nids = e->pkey_meths(e, NULL, &nids, 0);
+ if(num_nids > 0)
+ return engine_table_register(&pkey_meth_table,
+ engine_unregister_all_pkey_meths, e, nids,
+ num_nids, 1);
+ }
+ return 1;
+ }
+
+/* Exposed API function to get a functional reference from the implementation
+ * table (ie. try to get a functional reference from the tabled structural
+ * references) for a given pkey_meth 'nid' */
+ENGINE *ENGINE_get_pkey_meth_engine(int nid)
+ {
+ return engine_table_select(&pkey_meth_table, nid);
+ }
+
+/* Obtains a pkey_meth implementation from an ENGINE functional reference */
+const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid)
+ {
+ EVP_PKEY_METHOD *ret;
+ ENGINE_PKEY_METHS_PTR fn = ENGINE_get_pkey_meths(e);
+ if(!fn || !fn(e, &ret, NULL, nid))
+ {
+ ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_METH,
+ ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
+ return NULL;
+ }
+ return ret;
+ }
+
+/* Gets the pkey_meth callback from an ENGINE structure */
+ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e)
+ {
+ return e->pkey_meths;
+ }
+
+/* Sets the pkey_meth callback in an ENGINE structure */
+int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f)
+ {
+ e->pkey_meths = f;
+ return 1;
+ }
+
+/* Internal function to free up EVP_PKEY_METHOD structures before an
+ * ENGINE is destroyed
+ */
+
+void engine_pkey_meths_free(ENGINE *e)
+ {
+ int i;
+ EVP_PKEY_METHOD *pkm;
+ if (e->pkey_meths)
+ {
+ const int *pknids;
+ int npknids;
+ npknids = e->pkey_meths(e, NULL, &pknids, 0);
+ for (i = 0; i < npknids; i++)
+ {
+ if (e->pkey_meths(e, &pkm, NULL, pknids[i]))
+ {
+ EVP_PKEY_meth_free(pkm);
+ }
+ }
+ }
+ }
projects / cassiopeia.git / blobdiff