Line data Source code
1 : /* ====================================================================
2 : * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
3 : *
4 : * Redistribution and use in source and binary forms, with or without
5 : * modification, are permitted provided that the following conditions
6 : * are met:
7 : *
8 : * 1. Redistributions of source code must retain the above copyright
9 : * notice, this list of conditions and the following disclaimer.
10 : *
11 : * 2. Redistributions in binary form must reproduce the above copyright
12 : * notice, this list of conditions and the following disclaimer in
13 : * the documentation and/or other materials provided with the
14 : * distribution.
15 : *
16 : * 3. All advertising materials mentioning features or use of this
17 : * software must display the following acknowledgment:
18 : * "This product includes software developed by the OpenSSL Project
19 : * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
20 : *
21 : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 : * endorse or promote products derived from this software without
23 : * prior written permission. For written permission, please contact
24 : * licensing@OpenSSL.org.
25 : *
26 : * 5. Products derived from this software may not be called "OpenSSL"
27 : * nor may "OpenSSL" appear in their names without prior written
28 : * permission of the OpenSSL Project.
29 : *
30 : * 6. Redistributions of any form whatsoever must retain the following
31 : * acknowledgment:
32 : * "This product includes software developed by the OpenSSL Project
33 : * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
34 : *
35 : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 : * OF THE POSSIBILITY OF SUCH DAMAGE.
47 : * ====================================================================
48 : *
49 : * This product includes cryptographic software written by Eric Young
50 : * (eay@cryptsoft.com). This product includes software written by Tim
51 : * Hudson (tjh@cryptsoft.com).
52 : *
53 : */
54 :
55 : #include "eng_int.h"
56 :
57 : /*
58 : * If this symbol is defined then ENGINE_get_default_RSA(), the function that
59 : * is used by RSA to hook in implementation code and cache defaults (etc),
60 : * will display brief debugging summaries to stderr with the 'nid'.
61 : */
62 : /* #define ENGINE_RSA_DEBUG */
63 :
64 : static ENGINE_TABLE *rsa_table = NULL;
65 : static const int dummy_nid = 1;
66 :
67 0 : void ENGINE_unregister_RSA(ENGINE *e)
68 : {
69 0 : engine_table_unregister(&rsa_table, e);
70 0 : }
71 :
72 0 : static void engine_unregister_all_RSA(void)
73 : {
74 0 : engine_table_cleanup(&rsa_table);
75 0 : }
76 :
77 0 : int ENGINE_register_RSA(ENGINE *e)
78 : {
79 0 : if (e->rsa_meth)
80 0 : return engine_table_register(&rsa_table,
81 : engine_unregister_all_RSA, e, &dummy_nid,
82 : 1, 0);
83 : return 1;
84 : }
85 :
86 0 : void ENGINE_register_all_RSA()
87 : {
88 : ENGINE *e;
89 :
90 0 : for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
91 0 : ENGINE_register_RSA(e);
92 0 : }
93 :
94 0 : int ENGINE_set_default_RSA(ENGINE *e)
95 : {
96 0 : if (e->rsa_meth)
97 0 : return engine_table_register(&rsa_table,
98 : engine_unregister_all_RSA, e, &dummy_nid,
99 : 1, 1);
100 : return 1;
101 : }
102 :
103 : /*
104 : * Exposed API function to get a functional reference from the implementation
105 : * table (ie. try to get a functional reference from the tabled structural
106 : * references).
107 : */
108 1592 : ENGINE *ENGINE_get_default_RSA(void)
109 : {
110 1592 : return engine_table_select(&rsa_table, dummy_nid);
111 : }
112 :
113 : /* Obtains an RSA implementation from an ENGINE functional reference */
114 0 : const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e)
115 : {
116 0 : return e->rsa_meth;
117 : }
118 :
119 : /* Sets an RSA implementation in an ENGINE structure */
120 0 : int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth)
121 : {
122 0 : e->rsa_meth = rsa_meth;
123 0 : return 1;
124 : }
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