lib/libcrypto/engine/eng_pkey.c

   1 /* $OpenBSD: eng_pkey.c,v 1.7 2017/01/29 17:49:23 beck Exp $ */
   2 /* ====================================================================
   3  * Copyright (c) 1999-2001 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    licensing@OpenSSL.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  * This product includes cryptographic software written by Eric Young
  51  * (eay@cryptsoft.com).  This product includes software written by Tim
  52  * Hudson (tjh@cryptsoft.com).
  53  *
  54  */
  55
  56 #include <openssl/err.h>
  57
  58 #include "eng_int.h"
  59
  60 /* Basic get/set stuff */
  61
  62 int
  63 ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f)
  64 {
  65         e->load_privkey = loadpriv_f;
  66         return 1;
  67 }
  68
  69 int
  70 ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f)
  71 {
  72         e->load_pubkey = loadpub_f;
  73         return 1;
  74 }
  75
  76 int
  77 ENGINE_set_load_ssl_client_cert_function(ENGINE *e,
  78     ENGINE_SSL_CLIENT_CERT_PTR loadssl_f)
  79 {
  80         e->load_ssl_client_cert = loadssl_f;
  81         return 1;
  82 }
  83
  84 ENGINE_LOAD_KEY_PTR
  85 ENGINE_get_load_privkey_function(const ENGINE *e)
  86 {
  87         return e->load_privkey;
  88 }
  89
  90 ENGINE_LOAD_KEY_PTR
  91 ENGINE_get_load_pubkey_function(const ENGINE *e)
  92 {
  93         return e->load_pubkey;
  94 }
  95
  96 ENGINE_SSL_CLIENT_CERT_PTR
  97 ENGINE_get_ssl_client_cert_function(const ENGINE *e)
  98 {
  99         return e->load_ssl_client_cert;
 100 }
 101
 102 /* API functions to load public/private keys */
 103
 104 EVP_PKEY *
 105 ENGINE_load_private_key(ENGINE *e, const char *key_id, UI_METHOD *ui_method,
 106     void *callback_data)
 107 {
 108         EVP_PKEY *pkey;
 109
 110         if (e == NULL) {
 111                 ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);
 112                 return 0;
 113         }
 114         CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
 115         if (e->funct_ref == 0) {
 116                 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
 117                 ENGINEerror(ENGINE_R_NOT_INITIALISED);
 118                 return 0;
 119         }
 120         CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
 121         if (!e->load_privkey) {
 122                 ENGINEerror(ENGINE_R_NO_LOAD_FUNCTION);
 123                 return 0;
 124         }
 125         pkey = e->load_privkey(e, key_id, ui_method, callback_data);
 126         if (!pkey) {
 127                 ENGINEerror(ENGINE_R_FAILED_LOADING_PRIVATE_KEY);
 128                 return 0;
 129         }
 130         return pkey;
 131 }
 132
 133 EVP_PKEY *
 134 ENGINE_load_public_key(ENGINE *e, const char *key_id, UI_METHOD *ui_method,
 135     void *callback_data)
 136 {
 137         EVP_PKEY *pkey;
 138
 139         if (e == NULL) {
 140                 ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);
 141                 return 0;
 142         }
 143         CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
 144         if (e->funct_ref == 0) {
 145                 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
 146                 ENGINEerror(ENGINE_R_NOT_INITIALISED);
 147                 return 0;
 148         }
 149         CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
 150         if (!e->load_pubkey) {
 151                 ENGINEerror(ENGINE_R_NO_LOAD_FUNCTION);
 152                 return 0;
 153         }
 154         pkey = e->load_pubkey(e, key_id, ui_method, callback_data);
 155         if (!pkey) {
 156                 ENGINEerror(ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
 157                 return 0;
 158         }
 159         return pkey;
 160 }
 161
 162 int
 163 ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s, STACK_OF(X509_NAME) *ca_dn,
 164     X509 **pcert, EVP_PKEY **ppkey, STACK_OF(X509) **pother,
 165     UI_METHOD *ui_method, void *callback_data)
 166 {
 167         if (e == NULL) {
 168                 ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);
 169                 return 0;
 170         }
 171         CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
 172         if (e->funct_ref == 0) {
 173                 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
 174                 ENGINEerror(ENGINE_R_NOT_INITIALISED);
 175                 return 0;
 176         }
 177         CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
 178         if (!e->load_ssl_client_cert) {
 179                 ENGINEerror(ENGINE_R_NO_LOAD_FUNCTION);
 180                 return 0;
 181         }
 182         return e->load_ssl_client_cert(e, s, ca_dn, pcert, ppkey, pother,
 183             ui_method, callback_data);
 184 }