1*0Sstevel@tonic-gate /* ====================================================================
2*0Sstevel@tonic-gate * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
5*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions
6*0Sstevel@tonic-gate * are met:
7*0Sstevel@tonic-gate *
8*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
9*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
10*0Sstevel@tonic-gate *
11*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
12*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in
13*0Sstevel@tonic-gate * the documentation and/or other materials provided with the
14*0Sstevel@tonic-gate * distribution.
15*0Sstevel@tonic-gate *
16*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this
17*0Sstevel@tonic-gate * software must display the following acknowledgment:
18*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project
19*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
20*0Sstevel@tonic-gate *
21*0Sstevel@tonic-gate * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22*0Sstevel@tonic-gate * endorse or promote products derived from this software without
23*0Sstevel@tonic-gate * prior written permission. For written permission, please contact
24*0Sstevel@tonic-gate * licensing@OpenSSL.org.
25*0Sstevel@tonic-gate *
26*0Sstevel@tonic-gate * 5. Products derived from this software may not be called "OpenSSL"
27*0Sstevel@tonic-gate * nor may "OpenSSL" appear in their names without prior written
28*0Sstevel@tonic-gate * permission of the OpenSSL Project.
29*0Sstevel@tonic-gate *
30*0Sstevel@tonic-gate * 6. Redistributions of any form whatsoever must retain the following
31*0Sstevel@tonic-gate * acknowledgment:
32*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project
33*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36*0Sstevel@tonic-gate * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38*0Sstevel@tonic-gate * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39*0Sstevel@tonic-gate * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40*0Sstevel@tonic-gate * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41*0Sstevel@tonic-gate * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42*0Sstevel@tonic-gate * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44*0Sstevel@tonic-gate * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45*0Sstevel@tonic-gate * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46*0Sstevel@tonic-gate * OF THE POSSIBILITY OF SUCH DAMAGE.
47*0Sstevel@tonic-gate * ====================================================================
48*0Sstevel@tonic-gate *
49*0Sstevel@tonic-gate * This product includes cryptographic software written by Eric Young
50*0Sstevel@tonic-gate * (eay@cryptsoft.com). This product includes software written by Tim
51*0Sstevel@tonic-gate * Hudson (tjh@cryptsoft.com).
52*0Sstevel@tonic-gate *
53*0Sstevel@tonic-gate */
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate #include "eng_int.h"
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate /* If this symbol is defined then ENGINE_get_digest_engine(), the function that
58*0Sstevel@tonic-gate * is used by EVP to hook in digest code and cache defaults (etc), will display
59*0Sstevel@tonic-gate * brief debugging summaries to stderr with the 'nid'. */
60*0Sstevel@tonic-gate /* #define ENGINE_DIGEST_DEBUG */
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate static ENGINE_TABLE *digest_table = NULL;
63*0Sstevel@tonic-gate
ENGINE_unregister_digests(ENGINE * e)64*0Sstevel@tonic-gate void ENGINE_unregister_digests(ENGINE *e)
65*0Sstevel@tonic-gate {
66*0Sstevel@tonic-gate engine_table_unregister(&digest_table, e);
67*0Sstevel@tonic-gate }
68*0Sstevel@tonic-gate
engine_unregister_all_digests(void)69*0Sstevel@tonic-gate static void engine_unregister_all_digests(void)
70*0Sstevel@tonic-gate {
71*0Sstevel@tonic-gate engine_table_cleanup(&digest_table);
72*0Sstevel@tonic-gate }
73*0Sstevel@tonic-gate
ENGINE_register_digests(ENGINE * e)74*0Sstevel@tonic-gate int ENGINE_register_digests(ENGINE *e)
75*0Sstevel@tonic-gate {
76*0Sstevel@tonic-gate if(e->digests)
77*0Sstevel@tonic-gate {
78*0Sstevel@tonic-gate const int *nids;
79*0Sstevel@tonic-gate int num_nids = e->digests(e, NULL, &nids, 0);
80*0Sstevel@tonic-gate if(num_nids > 0)
81*0Sstevel@tonic-gate return engine_table_register(&digest_table,
82*0Sstevel@tonic-gate engine_unregister_all_digests, e, nids,
83*0Sstevel@tonic-gate num_nids, 0);
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate return 1;
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate
ENGINE_register_all_digests()88*0Sstevel@tonic-gate void ENGINE_register_all_digests()
89*0Sstevel@tonic-gate {
90*0Sstevel@tonic-gate ENGINE *e;
91*0Sstevel@tonic-gate
92*0Sstevel@tonic-gate for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
93*0Sstevel@tonic-gate ENGINE_register_digests(e);
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate
ENGINE_set_default_digests(ENGINE * e)96*0Sstevel@tonic-gate int ENGINE_set_default_digests(ENGINE *e)
97*0Sstevel@tonic-gate {
98*0Sstevel@tonic-gate if(e->digests)
99*0Sstevel@tonic-gate {
100*0Sstevel@tonic-gate const int *nids;
101*0Sstevel@tonic-gate int num_nids = e->digests(e, NULL, &nids, 0);
102*0Sstevel@tonic-gate if(num_nids > 0)
103*0Sstevel@tonic-gate return engine_table_register(&digest_table,
104*0Sstevel@tonic-gate engine_unregister_all_digests, e, nids,
105*0Sstevel@tonic-gate num_nids, 1);
106*0Sstevel@tonic-gate }
107*0Sstevel@tonic-gate return 1;
108*0Sstevel@tonic-gate }
109*0Sstevel@tonic-gate
110*0Sstevel@tonic-gate /* Exposed API function to get a functional reference from the implementation
111*0Sstevel@tonic-gate * table (ie. try to get a functional reference from the tabled structural
112*0Sstevel@tonic-gate * references) for a given digest 'nid' */
ENGINE_get_digest_engine(int nid)113*0Sstevel@tonic-gate ENGINE *ENGINE_get_digest_engine(int nid)
114*0Sstevel@tonic-gate {
115*0Sstevel@tonic-gate return engine_table_select(&digest_table, nid);
116*0Sstevel@tonic-gate }
117*0Sstevel@tonic-gate
118*0Sstevel@tonic-gate /* Obtains a digest implementation from an ENGINE functional reference */
ENGINE_get_digest(ENGINE * e,int nid)119*0Sstevel@tonic-gate const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid)
120*0Sstevel@tonic-gate {
121*0Sstevel@tonic-gate const EVP_MD *ret;
122*0Sstevel@tonic-gate ENGINE_DIGESTS_PTR fn = ENGINE_get_digests(e);
123*0Sstevel@tonic-gate if(!fn || !fn(e, &ret, NULL, nid))
124*0Sstevel@tonic-gate {
125*0Sstevel@tonic-gate ENGINEerr(ENGINE_F_ENGINE_GET_DIGEST,
126*0Sstevel@tonic-gate ENGINE_R_UNIMPLEMENTED_DIGEST);
127*0Sstevel@tonic-gate return NULL;
128*0Sstevel@tonic-gate }
129*0Sstevel@tonic-gate return ret;
130*0Sstevel@tonic-gate }
131*0Sstevel@tonic-gate
132*0Sstevel@tonic-gate /* Gets the digest callback from an ENGINE structure */
ENGINE_get_digests(const ENGINE * e)133*0Sstevel@tonic-gate ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e)
134*0Sstevel@tonic-gate {
135*0Sstevel@tonic-gate return e->digests;
136*0Sstevel@tonic-gate }
137*0Sstevel@tonic-gate
138*0Sstevel@tonic-gate /* Sets the digest callback in an ENGINE structure */
ENGINE_set_digests(ENGINE * e,ENGINE_DIGESTS_PTR f)139*0Sstevel@tonic-gate int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f)
140*0Sstevel@tonic-gate {
141*0Sstevel@tonic-gate e->digests = f;
142*0Sstevel@tonic-gate return 1;
143*0Sstevel@tonic-gate }
144