diff options
Diffstat (limited to 'openssl/crypto/engine/eng_cnf.c')
| -rw-r--r-- | openssl/crypto/engine/eng_cnf.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/openssl/crypto/engine/eng_cnf.c b/openssl/crypto/engine/eng_cnf.c new file mode 100644 index 000000000..08066cea5 --- /dev/null +++ b/openssl/crypto/engine/eng_cnf.c @@ -0,0 +1,248 @@ +/* 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; + 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) + return 0; + } + /* 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)) + return 0; + } + + + + } + if (e && (do_init == -1) && !int_engine_init(e)) + goto err; + ret = 1; + err: + 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); + } |