1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/engine/eng_lib.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,345 @@
1.4 +/* crypto/engine/eng_lib.c */
1.5 +/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
1.6 + * project 2000.
1.7 + */
1.8 +/* ====================================================================
1.9 + * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
1.10 + *
1.11 + * Redistribution and use in source and binary forms, with or without
1.12 + * modification, are permitted provided that the following conditions
1.13 + * are met:
1.14 + *
1.15 + * 1. Redistributions of source code must retain the above copyright
1.16 + * notice, this list of conditions and the following disclaimer.
1.17 + *
1.18 + * 2. Redistributions in binary form must reproduce the above copyright
1.19 + * notice, this list of conditions and the following disclaimer in
1.20 + * the documentation and/or other materials provided with the
1.21 + * distribution.
1.22 + *
1.23 + * 3. All advertising materials mentioning features or use of this
1.24 + * software must display the following acknowledgment:
1.25 + * "This product includes software developed by the OpenSSL Project
1.26 + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
1.27 + *
1.28 + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
1.29 + * endorse or promote products derived from this software without
1.30 + * prior written permission. For written permission, please contact
1.31 + * licensing@OpenSSL.org.
1.32 + *
1.33 + * 5. Products derived from this software may not be called "OpenSSL"
1.34 + * nor may "OpenSSL" appear in their names without prior written
1.35 + * permission of the OpenSSL Project.
1.36 + *
1.37 + * 6. Redistributions of any form whatsoever must retain the following
1.38 + * acknowledgment:
1.39 + * "This product includes software developed by the OpenSSL Project
1.40 + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
1.41 + *
1.42 + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
1.43 + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.44 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.45 + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
1.46 + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.47 + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1.48 + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
1.49 + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.50 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1.51 + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.52 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
1.53 + * OF THE POSSIBILITY OF SUCH DAMAGE.
1.54 + * ====================================================================
1.55 + *
1.56 + * This product includes cryptographic software written by Eric Young
1.57 + * (eay@cryptsoft.com). This product includes software written by Tim
1.58 + * Hudson (tjh@cryptsoft.com).
1.59 + *
1.60 + */
1.61 +/*
1.62 + © Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
1.63 + */
1.64 +#include "eng_int.h"
1.65 +#include <openssl/rand.h>
1.66 +#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
1.67 +#include "libcrypto_wsd_macros.h"
1.68 +#include "libcrypto_wsd.h"
1.69 +#endif
1.70 +
1.71 +
1.72 +/* The "new"/"free" stuff first */
1.73 +
1.74 +EXPORT_C ENGINE *ENGINE_new(void)
1.75 + {
1.76 + ENGINE *ret;
1.77 +
1.78 + ret = (ENGINE *)OPENSSL_malloc(sizeof(ENGINE));
1.79 + if(ret == NULL)
1.80 + {
1.81 + ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE);
1.82 + return NULL;
1.83 + }
1.84 + memset(ret, 0, sizeof(ENGINE));
1.85 + ret->struct_ref = 1;
1.86 + engine_ref_debug(ret, 0, 1)
1.87 + CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data);
1.88 + return ret;
1.89 + }
1.90 +
1.91 +/* Placed here (close proximity to ENGINE_new) so that modifications to the
1.92 + * elements of the ENGINE structure are more likely to be caught and changed
1.93 + * here. */
1.94 +EXPORT_C void engine_set_all_null(ENGINE *e)
1.95 + {
1.96 + e->id = NULL;
1.97 + e->name = NULL;
1.98 + e->rsa_meth = NULL;
1.99 + e->dsa_meth = NULL;
1.100 + e->dh_meth = NULL;
1.101 + e->rand_meth = NULL;
1.102 + e->store_meth = NULL;
1.103 + e->ciphers = NULL;
1.104 + e->digests = NULL;
1.105 + e->destroy = NULL;
1.106 + e->init = NULL;
1.107 + e->finish = NULL;
1.108 + e->ctrl = NULL;
1.109 + e->load_privkey = NULL;
1.110 + e->load_pubkey = NULL;
1.111 + e->cmd_defns = NULL;
1.112 + e->flags = 0;
1.113 + }
1.114 +
1.115 +EXPORT_C int engine_free_util(ENGINE *e, int locked)
1.116 + {
1.117 + int i;
1.118 +
1.119 + if(e == NULL)
1.120 + {
1.121 + ENGINEerr(ENGINE_F_ENGINE_FREE_UTIL,
1.122 + ERR_R_PASSED_NULL_PARAMETER);
1.123 + return 0;
1.124 + }
1.125 + if(locked)
1.126 + i = CRYPTO_add(&e->struct_ref,-1,CRYPTO_LOCK_ENGINE);
1.127 + else
1.128 + i = --e->struct_ref;
1.129 + engine_ref_debug(e, 0, -1)
1.130 + if (i > 0) return 1;
1.131 +#ifdef REF_CHECK
1.132 + if (i < 0)
1.133 + {
1.134 + fprintf(stderr,"ENGINE_free, bad structural reference count\n");
1.135 + abort();
1.136 + }
1.137 +#endif
1.138 + /* Give the ENGINE a chance to do any structural cleanup corresponding
1.139 + * to allocation it did in its constructor (eg. unload error strings) */
1.140 + if(e->destroy)
1.141 + e->destroy(e);
1.142 + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);
1.143 + OPENSSL_free(e);
1.144 + return 1;
1.145 + }
1.146 +
1.147 +EXPORT_C int ENGINE_free(ENGINE *e)
1.148 + {
1.149 + return engine_free_util(e, 1);
1.150 + }
1.151 +
1.152 +/* Cleanup stuff */
1.153 +
1.154 +/* ENGINE_cleanup() is coded such that anything that does work that will need
1.155 + * cleanup can register a "cleanup" callback here. That way we don't get linker
1.156 + * bloat by referring to all *possible* cleanups, but any linker bloat into code
1.157 + * "X" will cause X's cleanup function to end up here. */
1.158 +#ifndef EMULATOR
1.159 +static STACK_OF(ENGINE_CLEANUP_ITEM) *cleanup_stack = NULL;
1.160 +#else
1.161 +GET_STATIC_VAR_FROM_TLS(cleanup_stack,eng_lib,STACK_OF(ENGINE_CLEANUP_ITEM) *)
1.162 +#define cleanup_stack (*GET_WSD_VAR_NAME(cleanup_stack,eng_lib, s)())
1.163 +#endif
1.164 +static int int_cleanup_check(int create)
1.165 + {
1.166 + if(cleanup_stack) return 1;
1.167 + if(!create) return 0;
1.168 + cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null();
1.169 + return (cleanup_stack ? 1 : 0);
1.170 + }
1.171 +static ENGINE_CLEANUP_ITEM *int_cleanup_item(ENGINE_CLEANUP_CB *cb)
1.172 + {
1.173 + ENGINE_CLEANUP_ITEM *item = OPENSSL_malloc(sizeof(
1.174 + ENGINE_CLEANUP_ITEM));
1.175 + if(!item) return NULL;
1.176 + item->cb = cb;
1.177 + return item;
1.178 + }
1.179 +EXPORT_C void engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb)
1.180 + {
1.181 + ENGINE_CLEANUP_ITEM *item;
1.182 + if(!int_cleanup_check(1)) return;
1.183 + item = int_cleanup_item(cb);
1.184 + if(item)
1.185 + sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0);
1.186 + }
1.187 +EXPORT_C void engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)
1.188 + {
1.189 + ENGINE_CLEANUP_ITEM *item;
1.190 + if(!int_cleanup_check(1)) return;
1.191 + item = int_cleanup_item(cb);
1.192 + if(item)
1.193 + sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
1.194 + }
1.195 +/* The API function that performs all cleanup */
1.196 +static void engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item)
1.197 + {
1.198 + (*(item->cb))();
1.199 + OPENSSL_free(item);
1.200 + }
1.201 +EXPORT_C void ENGINE_cleanup(void)
1.202 + {
1.203 + if(int_cleanup_check(0))
1.204 + {
1.205 + sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,
1.206 + engine_cleanup_cb_free);
1.207 + cleanup_stack = NULL;
1.208 + }
1.209 + /* FIXME: This should be handled (somehow) through RAND, eg. by it
1.210 + * registering a cleanup callback. */
1.211 + RAND_set_rand_method(NULL);
1.212 + }
1.213 +
1.214 +/* Now the "ex_data" support */
1.215 +
1.216 +EXPORT_C int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
1.217 + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
1.218 + {
1.219 + return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, argl, argp,
1.220 + new_func, dup_func, free_func);
1.221 + }
1.222 +
1.223 +EXPORT_C int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg)
1.224 + {
1.225 + return(CRYPTO_set_ex_data(&e->ex_data, idx, arg));
1.226 + }
1.227 +
1.228 +EXPORT_C void *ENGINE_get_ex_data(const ENGINE *e, int idx)
1.229 + {
1.230 + return(CRYPTO_get_ex_data(&e->ex_data, idx));
1.231 + }
1.232 +
1.233 +/* Functions to get/set an ENGINE's elements - mainly to avoid exposing the
1.234 + * ENGINE structure itself. */
1.235 +
1.236 +EXPORT_C int ENGINE_set_id(ENGINE *e, const char *id)
1.237 + {
1.238 + if(id == NULL)
1.239 + {
1.240 + ENGINEerr(ENGINE_F_ENGINE_SET_ID,
1.241 + ERR_R_PASSED_NULL_PARAMETER);
1.242 + return 0;
1.243 + }
1.244 + e->id = id;
1.245 + return 1;
1.246 + }
1.247 +
1.248 +EXPORT_C int ENGINE_set_name(ENGINE *e, const char *name)
1.249 + {
1.250 + if(name == NULL)
1.251 + {
1.252 + ENGINEerr(ENGINE_F_ENGINE_SET_NAME,
1.253 + ERR_R_PASSED_NULL_PARAMETER);
1.254 + return 0;
1.255 + }
1.256 + e->name = name;
1.257 + return 1;
1.258 + }
1.259 +
1.260 +EXPORT_C int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f)
1.261 + {
1.262 + e->destroy = destroy_f;
1.263 + return 1;
1.264 + }
1.265 +
1.266 +EXPORT_C int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f)
1.267 + {
1.268 + e->init = init_f;
1.269 + return 1;
1.270 + }
1.271 +
1.272 +EXPORT_C int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f)
1.273 + {
1.274 + e->finish = finish_f;
1.275 + return 1;
1.276 + }
1.277 +
1.278 +EXPORT_C int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f)
1.279 + {
1.280 + e->ctrl = ctrl_f;
1.281 + return 1;
1.282 + }
1.283 +
1.284 +EXPORT_C int ENGINE_set_flags(ENGINE *e, int flags)
1.285 + {
1.286 + e->flags = flags;
1.287 + return 1;
1.288 + }
1.289 +
1.290 +EXPORT_C int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns)
1.291 + {
1.292 + e->cmd_defns = defns;
1.293 + return 1;
1.294 + }
1.295 +
1.296 +EXPORT_C const char *ENGINE_get_id(const ENGINE *e)
1.297 + {
1.298 + return e->id;
1.299 + }
1.300 +
1.301 +EXPORT_C const char *ENGINE_get_name(const ENGINE *e)
1.302 + {
1.303 + return e->name;
1.304 + }
1.305 +
1.306 +EXPORT_C ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e)
1.307 + {
1.308 + return e->destroy;
1.309 + }
1.310 +
1.311 +EXPORT_C ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e)
1.312 + {
1.313 + return e->init;
1.314 + }
1.315 +
1.316 +EXPORT_C ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e)
1.317 + {
1.318 + return e->finish;
1.319 + }
1.320 +
1.321 +EXPORT_C ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e)
1.322 + {
1.323 + return e->ctrl;
1.324 + }
1.325 +
1.326 +EXPORT_C int ENGINE_get_flags(const ENGINE *e)
1.327 + {
1.328 + return e->flags;
1.329 + }
1.330 +
1.331 +EXPORT_C const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e)
1.332 + {
1.333 + return e->cmd_defns;
1.334 + }
1.335 +
1.336 +/* eng_lib.o is pretty much linked into anything that touches ENGINE already, so
1.337 + * put the "static_state" hack here. */
1.338 +#ifndef EMULATOR
1.339 +static int internal_static_hack = 0;
1.340 +#else
1.341 +GET_STATIC_VAR_FROM_TLS(internal_static_hack,eng_lib,int)
1.342 +#define internal_static_hack (*GET_WSD_VAR_NAME(internal_static_hack,eng_lib, s)())
1.343 +#endif
1.344 +
1.345 +EXPORT_C void *ENGINE_get_static_state(void)
1.346 + {
1.347 + return &internal_static_hack;
1.348 + }