]>
Commit | Line | Data |
---|---|---|
c9501c22 DSH |
1 | /* eng_cnf.c */ |
2 | /* Written by Stephen Henson (shenson@bigfoot.com) for the OpenSSL | |
3 | * project 2001. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2001 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <openssl/crypto.h> | |
61 | #include "cryptlib.h" | |
62 | #include <openssl/conf.h> | |
63 | #include <openssl/engine.h> | |
64 | ||
65 | /* #define ENGINE_CONF_DEBUG */ | |
66 | ||
67 | /* ENGINE config module */ | |
68 | ||
69 | static char *skip_dot(char *name) | |
70 | { | |
71 | char *p; | |
72 | p = strchr(name, '.'); | |
73 | if (p) | |
74 | return p + 1; | |
75 | return name; | |
76 | } | |
77 | ||
78 | int int_engine_configure(char *name, char *value, const CONF *cnf) | |
79 | { | |
80 | int i; | |
81 | int ret = 0; | |
82 | STACK_OF(CONF_VALUE) *ecmds; | |
83 | CONF_VALUE *ecmd; | |
84 | char *ctrlname, *ctrlvalue; | |
85 | ENGINE *e = NULL; | |
86 | name = skip_dot(name); | |
87 | #ifdef ENGINE_CONF_DEBUG | |
88 | fprintf(stderr, "Configuring engine %s\n", name); | |
89 | #endif | |
90 | /* Value is a section containing ENGINE commands */ | |
91 | ecmds = NCONF_get_section(cnf, value); | |
92 | ||
93 | if (!ecmds) | |
94 | { | |
95 | ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE, ENGINE_R_ENGINE_SECTION_ERROR); | |
96 | return 0; | |
97 | } | |
98 | ||
99 | for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++) | |
100 | { | |
101 | ecmd = sk_CONF_VALUE_value(ecmds, i); | |
102 | ctrlname = skip_dot(ecmd->name); | |
103 | ctrlvalue = ecmd->value; | |
104 | #ifdef ENGINE_CONF_DEBUG | |
105 | fprintf(stderr, "ENGINE conf: doing ctrl(%s,%s)\n", ctrlname, ctrlvalue); | |
106 | #endif | |
107 | ||
108 | /* First handle some special pseudo ctrls */ | |
109 | ||
110 | /* Override engine name to use */ | |
111 | if (!strcmp(ctrlname, "engine_id")) | |
112 | name = ctrlvalue; | |
113 | /* Load a dynamic ENGINE */ | |
114 | else if (!strcmp(ctrlname, "dynamic_path")) | |
115 | { | |
116 | e = ENGINE_by_id("dynamic"); | |
117 | if (!e) | |
118 | goto err; | |
119 | if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", ctrlvalue, 0)) | |
120 | goto err; | |
121 | if (!ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) | |
122 | goto err; | |
123 | } | |
124 | /* ... add other pseudos here ... */ | |
125 | else | |
126 | { | |
127 | /* At this point we need an ENGINE structural reference | |
128 | * if we don't already have one. | |
129 | */ | |
130 | if (!e) | |
131 | { | |
132 | e = ENGINE_by_id(name); | |
133 | if (!e) | |
134 | return 0; | |
135 | } | |
136 | /* Allow "EMPTY" to mean no value: this allows a valid | |
137 | * "value" to be passed to ctrls of type NO_INPUT | |
138 | */ | |
139 | if (!strcmp(ctrlvalue, "EMPTY")) | |
140 | ctrlvalue = NULL; | |
df5eaa8a DSH |
141 | if (!strcmp(ctrlname, "default_algorithms")) |
142 | { | |
143 | if (!ENGINE_set_default_string(e, ctrlvalue)) | |
144 | goto err; | |
145 | } | |
146 | else if (!ENGINE_ctrl_cmd_string(e, | |
c9501c22 DSH |
147 | ctrlname, ctrlvalue, 0)) |
148 | return 0; | |
149 | } | |
150 | ||
151 | ||
152 | } | |
153 | ret = 1; | |
154 | err: | |
155 | if (e) | |
156 | ENGINE_free(e); | |
157 | return ret; | |
158 | } | |
df5eaa8a | 159 | |
c9501c22 DSH |
160 | |
161 | static int int_engine_module_init(CONF_IMODULE *md, const CONF *cnf) | |
162 | { | |
163 | STACK_OF(CONF_VALUE) *elist; | |
164 | CONF_VALUE *cval; | |
165 | int i; | |
166 | #ifdef ENGINE_CONF_DEBUG | |
167 | fprintf(stderr, "Called engine module: name %s, value %s\n", | |
168 | CONF_imodule_get_name(md), CONF_imodule_get_value(md)); | |
169 | #endif | |
170 | /* Value is a section containing ENGINEs to configure */ | |
171 | elist = NCONF_get_section(cnf, CONF_imodule_get_value(md)); | |
172 | ||
173 | if (!elist) | |
174 | { | |
175 | ENGINEerr(ENGINE_F_ENGINE_MODULE_INIT, ENGINE_R_ENGINES_SECTION_ERROR); | |
176 | return 0; | |
177 | } | |
178 | ||
179 | for (i = 0; i < sk_CONF_VALUE_num(elist); i++) | |
180 | { | |
181 | cval = sk_CONF_VALUE_value(elist, i); | |
182 | if (!int_engine_configure(cval->name, cval->value, cnf)) | |
183 | return 0; | |
184 | } | |
185 | ||
186 | return 1; | |
187 | } | |
188 | ||
189 | void ENGINE_add_conf_module(void) | |
190 | { | |
191 | CONF_module_add("engines", int_engine_module_init, 0); | |
192 | } |