242 lines
7.8 KiB
C
242 lines
7.8 KiB
C
/* eng_cnf.c */
|
|
/*
|
|
* Written by Stephen Henson (steve@openssl.org) for the OpenSSL project
|
|
* 2001.
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2001 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#include "eng_int.h"
|
|
#include <openssl/conf.h>
|
|
|
|
/* #define ENGINE_CONF_DEBUG */
|
|
|
|
/* ENGINE config module */
|
|
|
|
static char *skip_dot(char *name)
|
|
{
|
|
char *p;
|
|
p = strchr(name, '.');
|
|
if (p)
|
|
return p + 1;
|
|
return name;
|
|
}
|
|
|
|
static STACK_OF(ENGINE) *initialized_engines = NULL;
|
|
|
|
static int int_engine_init(ENGINE *e)
|
|
{
|
|
if (!ENGINE_init(e))
|
|
return 0;
|
|
if (!initialized_engines)
|
|
initialized_engines = sk_ENGINE_new_null();
|
|
if (!initialized_engines || !sk_ENGINE_push(initialized_engines, e)) {
|
|
ENGINE_finish(e);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int int_engine_configure(char *name, char *value, const CONF *cnf)
|
|
{
|
|
int i;
|
|
int ret = 0;
|
|
long do_init = -1;
|
|
STACK_OF(CONF_VALUE) *ecmds;
|
|
CONF_VALUE *ecmd = NULL;
|
|
char *ctrlname, *ctrlvalue;
|
|
ENGINE *e = NULL;
|
|
int soft = 0;
|
|
|
|
name = skip_dot(name);
|
|
#ifdef ENGINE_CONF_DEBUG
|
|
fprintf(stderr, "Configuring engine %s\n", name);
|
|
#endif
|
|
/* Value is a section containing ENGINE commands */
|
|
ecmds = NCONF_get_section(cnf, value);
|
|
|
|
if (!ecmds) {
|
|
ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE,
|
|
ENGINE_R_ENGINE_SECTION_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++) {
|
|
ecmd = sk_CONF_VALUE_value(ecmds, i);
|
|
ctrlname = skip_dot(ecmd->name);
|
|
ctrlvalue = ecmd->value;
|
|
#ifdef ENGINE_CONF_DEBUG
|
|
fprintf(stderr, "ENGINE conf: doing ctrl(%s,%s)\n", ctrlname,
|
|
ctrlvalue);
|
|
#endif
|
|
|
|
/* First handle some special pseudo ctrls */
|
|
|
|
/* Override engine name to use */
|
|
if (!strcmp(ctrlname, "engine_id"))
|
|
name = ctrlvalue;
|
|
else if (!strcmp(ctrlname, "soft_load"))
|
|
soft = 1;
|
|
/* Load a dynamic ENGINE */
|
|
else if (!strcmp(ctrlname, "dynamic_path")) {
|
|
e = ENGINE_by_id("dynamic");
|
|
if (!e)
|
|
goto err;
|
|
if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", ctrlvalue, 0))
|
|
goto err;
|
|
if (!ENGINE_ctrl_cmd_string(e, "LIST_ADD", "2", 0))
|
|
goto err;
|
|
if (!ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
|
|
goto err;
|
|
}
|
|
/* ... add other pseudos here ... */
|
|
else {
|
|
/*
|
|
* At this point we need an ENGINE structural reference if we
|
|
* don't already have one.
|
|
*/
|
|
if (!e) {
|
|
e = ENGINE_by_id(name);
|
|
if (!e && soft) {
|
|
ERR_clear_error();
|
|
return 1;
|
|
}
|
|
if (!e)
|
|
goto err;
|
|
}
|
|
/*
|
|
* Allow "EMPTY" to mean no value: this allows a valid "value" to
|
|
* be passed to ctrls of type NO_INPUT
|
|
*/
|
|
if (!strcmp(ctrlvalue, "EMPTY"))
|
|
ctrlvalue = NULL;
|
|
if (!strcmp(ctrlname, "init")) {
|
|
if (!NCONF_get_number_e(cnf, value, "init", &do_init))
|
|
goto err;
|
|
if (do_init == 1) {
|
|
if (!int_engine_init(e))
|
|
goto err;
|
|
} else if (do_init != 0) {
|
|
ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE,
|
|
ENGINE_R_INVALID_INIT_VALUE);
|
|
goto err;
|
|
}
|
|
} else if (!strcmp(ctrlname, "default_algorithms")) {
|
|
if (!ENGINE_set_default_string(e, ctrlvalue))
|
|
goto err;
|
|
} else if (!ENGINE_ctrl_cmd_string(e, ctrlname, ctrlvalue, 0))
|
|
goto err;
|
|
}
|
|
|
|
}
|
|
if (e && (do_init == -1) && !int_engine_init(e)) {
|
|
ecmd = NULL;
|
|
goto err;
|
|
}
|
|
ret = 1;
|
|
err:
|
|
if (ret != 1) {
|
|
ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE,
|
|
ENGINE_R_ENGINE_CONFIGURATION_ERROR);
|
|
if (ecmd)
|
|
ERR_add_error_data(6, "section=", ecmd->section,
|
|
", name=", ecmd->name,
|
|
", value=", ecmd->value);
|
|
}
|
|
if (e)
|
|
ENGINE_free(e);
|
|
return ret;
|
|
}
|
|
|
|
static int int_engine_module_init(CONF_IMODULE *md, const CONF *cnf)
|
|
{
|
|
STACK_OF(CONF_VALUE) *elist;
|
|
CONF_VALUE *cval;
|
|
int i;
|
|
#ifdef ENGINE_CONF_DEBUG
|
|
fprintf(stderr, "Called engine module: name %s, value %s\n",
|
|
CONF_imodule_get_name(md), CONF_imodule_get_value(md));
|
|
#endif
|
|
/* Value is a section containing ENGINEs to configure */
|
|
elist = NCONF_get_section(cnf, CONF_imodule_get_value(md));
|
|
|
|
if (!elist) {
|
|
ENGINEerr(ENGINE_F_INT_ENGINE_MODULE_INIT,
|
|
ENGINE_R_ENGINES_SECTION_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < sk_CONF_VALUE_num(elist); i++) {
|
|
cval = sk_CONF_VALUE_value(elist, i);
|
|
if (!int_engine_configure(cval->name, cval->value, cnf))
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void int_engine_module_finish(CONF_IMODULE *md)
|
|
{
|
|
ENGINE *e;
|
|
while ((e = sk_ENGINE_pop(initialized_engines)))
|
|
ENGINE_finish(e);
|
|
sk_ENGINE_free(initialized_engines);
|
|
initialized_engines = NULL;
|
|
}
|
|
|
|
void ENGINE_add_conf_module(void)
|
|
{
|
|
CONF_module_add("engines",
|
|
int_engine_module_init, int_engine_module_finish);
|
|
}
|