diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/engine/eng_cnf.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/engine/eng_cnf.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/engine/eng_cnf.c b/openssl-1.1.0h/crypto/engine/eng_cnf.c new file mode 100644 index 0000000..6f0a066 --- /dev/null +++ b/openssl-1.1.0h/crypto/engine/eng_cnf.c @@ -0,0 +1,192 @@ +/* + * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "eng_int.h" +#include <openssl/conf.h> + +/* #define ENGINE_CONF_DEBUG */ + +/* ENGINE config module */ + +static const char *skip_dot(const char *name) +{ + const char *p = strchr(name, '.'); + + if (p != NULL) + 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(const char *name, const char *value, const CONF *cnf) +{ + int i; + int ret = 0; + long do_init = -1; + STACK_OF(CONF_VALUE) *ecmds; + CONF_VALUE *ecmd = NULL; + const 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") == 0) + name = ctrlvalue; + else if (strcmp(ctrlname, "soft_load") == 0) + soft = 1; + /* Load a dynamic ENGINE */ + else if (strcmp(ctrlname, "dynamic_path") == 0) { + 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") == 0) + ctrlvalue = NULL; + if (strcmp(ctrlname, "init") == 0) { + 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") == 0) { + 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); + } + 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); +} |