3 * Written by Stephen Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
61 #include <openssl/conf.h>
63 /* #define ENGINE_CONF_DEBUG */
65 /* ENGINE config module */
67 static char *skip_dot(char *name)
70 p = strchr(name, '.');
76 static STACK_OF(ENGINE) *initialized_engines = NULL;
78 static int int_engine_init(ENGINE *e)
82 if (!initialized_engines)
83 initialized_engines = sk_ENGINE_new_null();
84 if (!initialized_engines || !sk_ENGINE_push(initialized_engines, e)) {
91 static int int_engine_configure(char *name, char *value, const CONF *cnf)
96 STACK_OF(CONF_VALUE) *ecmds;
97 CONF_VALUE *ecmd = NULL;
98 char *ctrlname, *ctrlvalue;
102 name = skip_dot(name);
103 #ifdef ENGINE_CONF_DEBUG
104 fprintf(stderr, "Configuring engine %s\n", name);
106 /* Value is a section containing ENGINE commands */
107 ecmds = NCONF_get_section(cnf, value);
110 ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE,
111 ENGINE_R_ENGINE_SECTION_ERROR);
115 for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++) {
116 ecmd = sk_CONF_VALUE_value(ecmds, i);
117 ctrlname = skip_dot(ecmd->name);
118 ctrlvalue = ecmd->value;
119 #ifdef ENGINE_CONF_DEBUG
120 fprintf(stderr, "ENGINE conf: doing ctrl(%s,%s)\n", ctrlname,
124 /* First handle some special pseudo ctrls */
126 /* Override engine name to use */
127 if (strcmp(ctrlname, "engine_id") == 0)
129 else if (strcmp(ctrlname, "soft_load") == 0)
131 /* Load a dynamic ENGINE */
132 else if (strcmp(ctrlname, "dynamic_path") == 0) {
133 e = ENGINE_by_id("dynamic");
136 if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", ctrlvalue, 0))
138 if (!ENGINE_ctrl_cmd_string(e, "LIST_ADD", "2", 0))
140 if (!ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
143 /* ... add other pseudos here ... */
146 * At this point we need an ENGINE structural reference if we
147 * don't already have one.
150 e = ENGINE_by_id(name);
159 * Allow "EMPTY" to mean no value: this allows a valid "value" to
160 * be passed to ctrls of type NO_INPUT
162 if (strcmp(ctrlvalue, "EMPTY") == 0)
164 if (strcmp(ctrlname, "init") == 0) {
165 if (!NCONF_get_number_e(cnf, value, "init", &do_init))
168 if (!int_engine_init(e))
170 } else if (do_init != 0) {
171 ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE,
172 ENGINE_R_INVALID_INIT_VALUE);
175 } else if (strcmp(ctrlname, "default_algorithms") == 0) {
176 if (!ENGINE_set_default_string(e, ctrlvalue))
178 } else if (!ENGINE_ctrl_cmd_string(e, ctrlname, ctrlvalue, 0))
183 if (e && (do_init == -1) && !int_engine_init(e)) {
190 ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE,
191 ENGINE_R_ENGINE_CONFIGURATION_ERROR);
193 ERR_add_error_data(6, "section=", ecmd->section,
194 ", name=", ecmd->name,
195 ", value=", ecmd->value);
201 static int int_engine_module_init(CONF_IMODULE *md, const CONF *cnf)
203 STACK_OF(CONF_VALUE) *elist;
206 #ifdef ENGINE_CONF_DEBUG
207 fprintf(stderr, "Called engine module: name %s, value %s\n",
208 CONF_imodule_get_name(md), CONF_imodule_get_value(md));
210 /* Value is a section containing ENGINEs to configure */
211 elist = NCONF_get_section(cnf, CONF_imodule_get_value(md));
214 ENGINEerr(ENGINE_F_INT_ENGINE_MODULE_INIT,
215 ENGINE_R_ENGINES_SECTION_ERROR);
219 for (i = 0; i < sk_CONF_VALUE_num(elist); i++) {
220 cval = sk_CONF_VALUE_value(elist, i);
221 if (!int_engine_configure(cval->name, cval->value, cnf))
228 static void int_engine_module_finish(CONF_IMODULE *md)
231 while ((e = sk_ENGINE_pop(initialized_engines)))
233 sk_ENGINE_free(initialized_engines);
234 initialized_engines = NULL;
237 void ENGINE_add_conf_module(void)
239 CONF_module_add("engines",
240 int_engine_module_init, int_engine_module_finish);