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1 /* ==================================================================== | |
2 * Copyright (c) 2000-2002 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 /* If this symbol is defined then ENGINE_get_default_ECDSA(), the function that
is | |
58 * used by ECDSA to hook in implementation code and cache defaults (etc), will | |
59 * display brief debugging summaries to stderr with the 'nid'. */ | |
60 /* #define ENGINE_ECDSA_DEBUG */ | |
61 | |
62 static ENGINE_TABLE *ecdsa_table = NULL; | |
63 static const int dummy_nid = 1; | |
64 | |
65 void ENGINE_unregister_ECDSA(ENGINE *e) | |
66 { | |
67 engine_table_unregister(&ecdsa_table, e); | |
68 } | |
69 | |
70 static void engine_unregister_all_ECDSA(void) | |
71 { | |
72 engine_table_cleanup(&ecdsa_table); | |
73 } | |
74 | |
75 int ENGINE_register_ECDSA(ENGINE *e) | |
76 { | |
77 if(e->ecdsa_meth) | |
78 return engine_table_register(&ecdsa_table, | |
79 engine_unregister_all_ECDSA, e, &dummy_nid, 1, 0
); | |
80 return 1; | |
81 } | |
82 | |
83 void ENGINE_register_all_ECDSA() | |
84 { | |
85 ENGINE *e; | |
86 | |
87 for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e)) | |
88 ENGINE_register_ECDSA(e); | |
89 } | |
90 | |
91 int ENGINE_set_default_ECDSA(ENGINE *e) | |
92 { | |
93 if(e->ecdsa_meth) | |
94 return engine_table_register(&ecdsa_table, | |
95 engine_unregister_all_ECDSA, e, &dummy_nid, 1, 1
); | |
96 return 1; | |
97 } | |
98 | |
99 /* Exposed API function to get a functional reference from the implementation | |
100 * table (ie. try to get a functional reference from the tabled structural | |
101 * references). */ | |
102 ENGINE *ENGINE_get_default_ECDSA(void) | |
103 { | |
104 return engine_table_select(&ecdsa_table, dummy_nid); | |
105 } | |
106 | |
107 /* Obtains an ECDSA implementation from an ENGINE functional reference */ | |
108 const ECDSA_METHOD *ENGINE_get_ECDSA(const ENGINE *e) | |
109 { | |
110 return e->ecdsa_meth; | |
111 } | |
112 | |
113 /* Sets an ECDSA implementation in an ENGINE structure */ | |
114 int ENGINE_set_ECDSA(ENGINE *e, const ECDSA_METHOD *ecdsa_meth) | |
115 { | |
116 e->ecdsa_meth = ecdsa_meth; | |
117 return 1; | |
118 } | |
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