-/* ====================================================================
- * 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).
+/*
+ * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include "eng_int.h"
+#include <openssl/evp.h>
+#include "internal/asn1_int.h"
-/* If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the function
- * that is used by EVP to hook in pkey_asn1_meth code and cache defaults (etc), will
- * display brief debugging summaries to stderr with the 'nid'. */
+/*
+ * If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the
+ * function that is used by EVP to hook in pkey_asn1_meth code and cache
+ * defaults (etc), will display brief debugging summaries to stderr with the
+ * 'nid'.
+ */
/* #define ENGINE_PKEY_ASN1_METH_DEBUG */
static ENGINE_TABLE *pkey_asn1_meth_table = NULL;
void ENGINE_unregister_pkey_asn1_meths(ENGINE *e)
- {
- engine_table_unregister(&pkey_asn1_meth_table, e);
- }
+{
+ engine_table_unregister(&pkey_asn1_meth_table, e);
+}
static void engine_unregister_all_pkey_asn1_meths(void)
- {
- engine_table_cleanup(&pkey_asn1_meth_table);
- }
+{
+ engine_table_cleanup(&pkey_asn1_meth_table);
+}
int ENGINE_register_pkey_asn1_meths(ENGINE *e)
- {
- if(e->pkey_asn1_meths)
- {
- const int *nids;
- int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);
- if(num_nids > 0)
- return engine_table_register(&pkey_asn1_meth_table,
- engine_unregister_all_pkey_asn1_meths, e, nids,
- num_nids, 0);
- }
- return 1;
- }
-
-void ENGINE_register_all_pkey_asn1_meths()
- {
- ENGINE *e;
-
- for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
- ENGINE_register_pkey_asn1_meths(e);
- }
+{
+ if (e->pkey_asn1_meths) {
+ const int *nids;
+ int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);
+ if (num_nids > 0)
+ return engine_table_register(&pkey_asn1_meth_table,
+ engine_unregister_all_pkey_asn1_meths,
+ e, nids, num_nids, 0);
+ }
+ return 1;
+}
+
+void ENGINE_register_all_pkey_asn1_meths(void)
+{
+ ENGINE *e;
+
+ for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
+ ENGINE_register_pkey_asn1_meths(e);
+}
int ENGINE_set_default_pkey_asn1_meths(ENGINE *e)
- {
- if(e->pkey_asn1_meths)
- {
- const int *nids;
- int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);
- if(num_nids > 0)
- return engine_table_register(&pkey_asn1_meth_table,
- engine_unregister_all_pkey_asn1_meths, e, nids,
- num_nids, 1);
- }
- return 1;
- }
-
-/* Exposed API function to get a functional reference from the implementation
+{
+ if (e->pkey_asn1_meths) {
+ const int *nids;
+ int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);
+ if (num_nids > 0)
+ return engine_table_register(&pkey_asn1_meth_table,
+ engine_unregister_all_pkey_asn1_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_asn1_meth 'nid' */
+ * references) for a given pkey_asn1_meth 'nid'
+ */
ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid)
- {
- return engine_table_select(&pkey_asn1_meth_table, nid);
- }
+{
+ return engine_table_select(&pkey_asn1_meth_table, nid);
+}
-/* Obtains a pkey_asn1_meth implementation from an ENGINE functional reference */
+/*
+ * Obtains a pkey_asn1_meth implementation from an ENGINE functional
+ * reference
+ */
const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid)
- {
- EVP_PKEY_ASN1_METHOD *ret;
- ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e);
- if(!fn || !fn(e, &ret, NULL, nid))
- {
- ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH,
- ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
- return NULL;
- }
- return ret;
- }
+{
+ EVP_PKEY_ASN1_METHOD *ret;
+ ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e);
+ if (!fn || !fn(e, &ret, NULL, nid)) {
+ ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH,
+ ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
+ return NULL;
+ }
+ return ret;
+}
/* Gets the pkey_asn1_meth callback from an ENGINE structure */
ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e)
- {
- return e->pkey_asn1_meths;
- }
+{
+ return e->pkey_asn1_meths;
+}
/* Sets the pkey_asn1_meth callback in an ENGINE structure */
int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f)
- {
- e->pkey_asn1_meths = f;
- return 1;
- }
+{
+ e->pkey_asn1_meths = f;
+ return 1;
+}
-/* Internal function to free up EVP_PKEY_ASN1_METHOD structures before an
+/*
+ * Internal function to free up EVP_PKEY_ASN1_METHOD structures before an
* ENGINE is destroyed
*/
void engine_pkey_asn1_meths_free(ENGINE *e)
- {
- int i;
- EVP_PKEY_ASN1_METHOD *pkm;
- if (e->pkey_asn1_meths)
- {
- const int *pknids;
- int npknids;
- npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0);
- for (i = 0; i < npknids; i++)
- {
- if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i]))
- {
- EVP_PKEY_asn1_free(pkm);
- }
- }
- }
- }
+{
+ int i;
+ EVP_PKEY_ASN1_METHOD *pkm;
+ if (e->pkey_asn1_meths) {
+ const int *pknids;
+ int npknids;
+ npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0);
+ for (i = 0; i < npknids; i++) {
+ if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i])) {
+ EVP_PKEY_asn1_free(pkm);
+ }
+ }
+ }
+}
+
+/*
+ * Find a method based on a string. This does a linear search through all
+ * implemented algorithms. This is OK in practice because only a small number
+ * of algorithms are likely to be implemented in an engine and it is not used
+ * for speed critical operations.
+ */
+
+const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e,
+ const char *str,
+ int len)
+{
+ int i, nidcount;
+ const int *nids;
+ EVP_PKEY_ASN1_METHOD *ameth;
+ if (!e->pkey_asn1_meths)
+ return NULL;
+ if (len == -1)
+ len = strlen(str);
+ nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0);
+ for (i = 0; i < nidcount; i++) {
+ e->pkey_asn1_meths(e, &ameth, NULL, nids[i]);
+ if (((int)strlen(ameth->pem_str) == len)
+ && strncasecmp(ameth->pem_str, str, len) == 0)
+ return ameth;
+ }
+ return NULL;
+}
+
+typedef struct {
+ ENGINE *e;
+ const EVP_PKEY_ASN1_METHOD *ameth;
+ const char *str;
+ int len;
+} ENGINE_FIND_STR;
+
+static void look_str_cb(int nid, STACK_OF(ENGINE) *sk, ENGINE *def, void *arg)
+{
+ ENGINE_FIND_STR *lk = arg;
+ int i;
+ if (lk->ameth)
+ return;
+ for (i = 0; i < sk_ENGINE_num(sk); i++) {
+ ENGINE *e = sk_ENGINE_value(sk, i);
+ EVP_PKEY_ASN1_METHOD *ameth;
+ e->pkey_asn1_meths(e, &ameth, NULL, nid);
+ if (((int)strlen(ameth->pem_str) == lk->len)
+ && strncasecmp(ameth->pem_str, lk->str, lk->len) == 0) {
+ lk->e = e;
+ lk->ameth = ameth;
+ return;
+ }
+ }
+}
+
+const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
+ const char *str,
+ int len)
+{
+ ENGINE_FIND_STR fstr;
+ fstr.e = NULL;
+ fstr.ameth = NULL;
+ fstr.str = str;
+ fstr.len = len;
+
+ if (!RUN_ONCE(&engine_lock_init, do_engine_lock_init)) {
+ ENGINEerr(ENGINE_F_ENGINE_PKEY_ASN1_FIND_STR, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ CRYPTO_THREAD_write_lock(global_engine_lock);
+ engine_table_doall(pkey_asn1_meth_table, look_str_cb, &fstr);
+ /* If found obtain a structural reference to engine */
+ if (fstr.e) {
+ fstr.e->struct_ref++;
+ engine_ref_debug(fstr.e, 0, 1);
+ }
+ *pe = fstr.e;
+ CRYPTO_THREAD_unlock(global_engine_lock);
+ return fstr.ameth;
+}
projects / openssl.git / blobdiff