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_default_RAND(), the function that is
58*0Sstevel@tonic-gate * used by RAND to hook in implementation code and cache defaults (etc), will
59*0Sstevel@tonic-gate * display brief debugging summaries to stderr with the 'nid'. */
60*0Sstevel@tonic-gate /* #define ENGINE_RAND_DEBUG */
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate static ENGINE_TABLE *rand_table = NULL;
63*0Sstevel@tonic-gate static const int dummy_nid = 1;
64*0Sstevel@tonic-gate
ENGINE_unregister_RAND(ENGINE * e)65*0Sstevel@tonic-gate void ENGINE_unregister_RAND(ENGINE *e)
66*0Sstevel@tonic-gate {
67*0Sstevel@tonic-gate engine_table_unregister(&rand_table, e);
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate
engine_unregister_all_RAND(void)70*0Sstevel@tonic-gate static void engine_unregister_all_RAND(void)
71*0Sstevel@tonic-gate {
72*0Sstevel@tonic-gate engine_table_cleanup(&rand_table);
73*0Sstevel@tonic-gate }
74*0Sstevel@tonic-gate
ENGINE_register_RAND(ENGINE * e)75*0Sstevel@tonic-gate int ENGINE_register_RAND(ENGINE *e)
76*0Sstevel@tonic-gate {
77*0Sstevel@tonic-gate if(e->rand_meth)
78*0Sstevel@tonic-gate return engine_table_register(&rand_table,
79*0Sstevel@tonic-gate engine_unregister_all_RAND, e, &dummy_nid, 1, 0);
80*0Sstevel@tonic-gate return 1;
81*0Sstevel@tonic-gate }
82*0Sstevel@tonic-gate
ENGINE_register_all_RAND()83*0Sstevel@tonic-gate void ENGINE_register_all_RAND()
84*0Sstevel@tonic-gate {
85*0Sstevel@tonic-gate ENGINE *e;
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
88*0Sstevel@tonic-gate ENGINE_register_RAND(e);
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate
ENGINE_set_default_RAND(ENGINE * e)91*0Sstevel@tonic-gate int ENGINE_set_default_RAND(ENGINE *e)
92*0Sstevel@tonic-gate {
93*0Sstevel@tonic-gate if(e->rand_meth)
94*0Sstevel@tonic-gate return engine_table_register(&rand_table,
95*0Sstevel@tonic-gate engine_unregister_all_RAND, e, &dummy_nid, 1, 1);
96*0Sstevel@tonic-gate return 1;
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate /* Exposed API function to get a functional reference from the implementation
100*0Sstevel@tonic-gate * table (ie. try to get a functional reference from the tabled structural
101*0Sstevel@tonic-gate * references). */
ENGINE_get_default_RAND(void)102*0Sstevel@tonic-gate ENGINE *ENGINE_get_default_RAND(void)
103*0Sstevel@tonic-gate {
104*0Sstevel@tonic-gate return engine_table_select(&rand_table, dummy_nid);
105*0Sstevel@tonic-gate }
106*0Sstevel@tonic-gate
107*0Sstevel@tonic-gate /* Obtains an RAND implementation from an ENGINE functional reference */
ENGINE_get_RAND(const ENGINE * e)108*0Sstevel@tonic-gate const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e)
109*0Sstevel@tonic-gate {
110*0Sstevel@tonic-gate return e->rand_meth;
111*0Sstevel@tonic-gate }
112*0Sstevel@tonic-gate
113*0Sstevel@tonic-gate /* Sets an RAND implementation in an ENGINE structure */
ENGINE_set_RAND(ENGINE * e,const RAND_METHOD * rand_meth)114*0Sstevel@tonic-gate int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth)
115*0Sstevel@tonic-gate {
116*0Sstevel@tonic-gate e->rand_meth = rand_meth;
117*0Sstevel@tonic-gate return 1;
118*0Sstevel@tonic-gate }
119